National Library of Energy BETA

Sample records for automatic ice makers

  1. Webinar: Energy Conservation Standards for Automatic Commercial Ice Makers; Notice of Public Meeting

    Broader source: Energy.gov [DOE]

    DOE is conducting a public meeting and webinar for the notice of public meeting regarding energy conservation standards for automatic commercial ice makers. For more information, please visit the...

  2. 2014-06-09 Issuance: Energy Conservation Standards for Automatic Commercial Ice Makers; Notice of Public Meeting

    Broader source: Energy.gov [DOE]

    This document is a pre-publication Federal Register Notice of Public Meeting regarding Energy Conservation Standards for Automatic Commercial Ice Maker, as issued by the Deputy Assistant Secretary for Energy Efficiency on June 9, 2014. Though it is not intended or expected, should any discrepancy occur between the document posted here and the document published in the Federal Register, the Federal Register publication controls. This document is being made available through the Internet solely as a means to facilitate the public's access to this document.

  3. 2014-09-05 Issuance: Energy Conservation Standards for Automatic Commercial Ice Makers; Notice of Data Availability and Request for Comment

    Broader source: Energy.gov [DOE]

    This document is a pre-publication Federal Register notice of data availability and request for comment regarding energy conservation standards for automatic commercial ice makers, as issued by the Deputy Assistant Secretary for Energy Efficiency on September 5, 2014. Though it is not intended or expected, should any discrepancy occur between the document posted here and the document published in the Federal Register, the Federal Register publication controls. This document is being made available through the Internet solely as a means to facilitate the public's access to this document.

  4. Automatic Commercial Ice Makers | 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 uBUS SERVICE SUBSIDIES AT THEEnergyAO is the

  5. Performance of a stand-alone wind-electric ice maker for remote villages

    SciTech Connect (OSTI)

    Davis, H.C. [National Renewable Energy Lab., Golden, CO (United States); Brandemuehl, M.J. [University of Colorado, Boulder, CO (United States). Joint Center for Energy Management; Bergey, M.L.S. [Bergey Windpower Co., Norman, OK (United States)

    1995-01-01

    Two ice makers in the 1.1 metric tons per 24 hours (1.2 tons per day) size range were tested to determine their performance when directly coupled to a variable-frequency wind turbine generator. Initial tests were conducted using a dynamometer to simulate to wind to evaluate whether previously determined potential problems were significant and to define basic performance parameters. Field testing in Norman, Oklahoma, was completed to determine the performance of one of the ice makers under real wind conditions. As expected, the ice makers produced more ice at a higher speed than rated, and less ice at a lower speed. Due to the large start-up torque requirement of reciprocating compressors, the ice making system experienced a large start-up current and corresponding voltage drop which required a larger wind turbine that expected to provide the necessary current and voltage. Performance curves for ice production and power consumption are presented. A spreadsheet model was constructed to predict ice production at a user-defined site given the wind conditions for that location. Future work should include long-term performance tests and research on reducing the large start-up currents the system experiences when first coming on line.

  6. 2014-03-07 Issuance: Energy Conservation Standards for Automatic...

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

    for automatic commercial ice makers, as issued by the Assistant Secretary on March 7, 2014. Though it is not intended or expected, should any discrepancy occur between the...

  7. Fiber optic diffraction grating maker

    DOE Patents [OSTI]

    Deason, Vance A. (Idaho Falls, ID); Ward, Michael B. (Idaho Falls, ID)

    1991-01-01

    A compact and portable diffraction grating maker comprised of a laser beam, optical and fiber optics devices coupling the beam to one or more evanescent beam splitters, and collimating lenses or mirrors directing the split beam at an appropriate photosensitive material. The collimating optics, the output ends of the fiber optic coupler and the photosensitive plate holder are all mounted on an articulated framework so that the angle of intersection of the beams can be altered at will without disturbing the spatial filter, collimation or beam quality, and assuring that the beams will always intersect at the position of the plate.

  8. Fiber optic diffraction grating maker

    DOE Patents [OSTI]

    Deason, V.A.; Ward, M.B.

    1991-05-21

    A compact and portable diffraction grating maker is comprised of a laser beam, optical and fiber optics devices coupling the beam to one or more evanescent beam splitters, and collimating lenses or mirrors directing the split beam at an appropriate photosensitive material. The collimating optics, the output ends of the fiber optic coupler and the photosensitive plate holder are all mounted on an articulated framework so that the angle of intersection of the beams can be altered at will without disturbing the spatial filter, collimation or beam quality, and assuring that the beams will always intersect at the position of the plate. 4 figures.

  9. Microsoft Word - 11_4_09 ice maker.doc

    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 nAand DOE Safetyof MethaneMillion Electric Vehicles By 2015to: Department

  10. Fluid Flow and Thermodynamic Analysis of a Wing Anti-Icing System

    E-Print Network [OSTI]

    is controlled through regulating the hot flow passing a wing anti-icing valve by an automatic control system

  11. The Power 25 Charles Otto -POLICY MAKER

    E-Print Network [OSTI]

    The Power 25 Charles Otto - POLICY MAKER When Charles Otto was awarded swimming and lifesaving 2008 Power 25 By Aquatics International Staff Some of the most powerful people in the industry://www.aquaticsintl.com #12;The Power 25 Some of the most powerful people in the industry are not necessarily aquatics

  12. Procuring Solar Energy: A Guide for Federal Facility Decision Makers

    E-Print Network [OSTI]

    Procuring Solar Energy: A Guide for Federal Facility Decision Makers SEPTEMBER 2010 Solar Energy: www.ntis.gov/help/ordermethods.aspx PROCURING SOLAR ENERGY: A GUIDE FOR FEDERAL FACILITY DECISION MAKERS #12;September 2010 3 Procuring Solar Energy: A Guide for Federal Facility Decision Makers Blaise

  13. Design of an Automatic Landing System for the Meridian UAV using Fuzzy Logic

    E-Print Network [OSTI]

    Royer, David Andrew

    2010-04-22

    This document describes the design of an automatic landing system for the Meridian unmanned aerial vehicle (UAV) in development for glacial ice research. The Center for Remote Sensing of Ice Sheets (CReSIS), established by the National Science...

  14. Summary for Policy Makers: Intergovernmental Panel on Climate...

    Office of Scientific and Technical Information (OSTI)

    Summary for Policy Makers: Intergovernmental Panel on Climate Change Special Report Renewable Energy Sources (SRREN) Citation Details In-Document Search Title: Summary for Policy...

  15. Market Maker Inventories and Stock Prices Terrence Hendershott

    E-Print Network [OSTI]

    Kearns, Michael

    in intraday trading and price formation.2 This paper examines the relationship between closing market makerMarket Maker Inventories and Stock Prices Terrence Hendershott U.C. Berkeley Mark S. Seasholes U prices follow naturally from inventory models. Liquidity suppliers and market markers profit from

  16. Liquidity-Sensitive Automated Market Makers via Homogeneous Risk Measures

    E-Print Network [OSTI]

    stream of research in au- tomated market making is the design of liquidity-sensitive automated marketLiquidity-Sensitive Automated Market Makers via Homogeneous Risk Measures Abraham Othman and Tuomas. Automated market makers are algorithmic agents that pro- vide liquidity in electronic markets. A recent

  17. Iced Coffee Iced Chai Tea Latte

    E-Print Network [OSTI]

    Iced Coffee Iced Chai Tea Latte Iced Americano Iced Cappuccino Iced Latte Iced Mocha Iced White the Cooler Canned Soda Bottled Water Arizona Teas Energy Drinks Red Bull, SF Red Bull & Bing Jones Sodas $0.50 Listed prices do not include applicable sales tax. #12;Brewed Coffee Cafe au Lait Hot Tea Chai Tea Latte

  18. Interstellar Ices

    E-Print Network [OSTI]

    Boogert, A C A

    2003-01-01

    Currently ~36 different absorption bands have been detected in the infrared spectra of cold, dense interstellar and circumstellar environments. These are attributed to the vibrational transitions of ~17 different molecules frozen on dust grains. We review identification issues and summarize the techniques required to extract information on the physical and chemical evolution of these ices. Both laboratory simulations and line of sight studies are essential. Examples are given for ice bands observed toward high mass protostars, fields stars and recent work on ices in disks surrounding low mass protostars. A number of clear trends have emerged in recent years. One prominent ice component consists of an intimate mixture between H2O, CH3OH and CO2 molecules. Apparently a stable balance exists between low temperature hydrogenation and oxidation reactions on grain surfaces. In contrast, an equally prominent ice component, consisting almost entirely of CO, must have accreted directly from the gas phase. Thermal proc...

  19. SUSTAINABLE TRANSPORTATION ENERGY PATHWAYS A Research Summary for Decision Makers

    E-Print Network [OSTI]

    California at Davis, University of

    SUSTAINABLE TRANSPORTATION ENERGY PATHWAYS A Research Summary for Decision Makers Edited by Joan Ogden and Lorraine Anderson #12;Institute of Transportation Studies University of California, Davis One SUSTAINABLE TRANSPORTATION ENERGY PATHWAYS CHAPTER 12: KEY MEASUREMENT UNCERTAINTIES FOR BIOFUEL POLICY

  20. SUSTAINABLE TRANSPORTATION ENERGY PATHWAYS A Research Summary for Decision Makers

    E-Print Network [OSTI]

    California at Davis, University of

    SUSTAINABLE TRANSPORTATION ENERGY PATHWAYS A Research Summary for Decision Makers Edited by Joan #12;279 PART 4 SUSTAINABLE TRANSPORTATION ENERGY PATHWAYS CHAPTER 13: BEYOND LIFE-CYCLE ANALYSIS://creativecommons.org/licenses/by-nc-nd/3.0/>. For information on commercial licensing, contact copyright@ucdavis.edu. #12;278 SUSTAINABLE

  1. SUSTAINABLE TRANSPORTATION ENERGY PATHWAYS A Research Summary for Decision Makers

    E-Print Network [OSTI]

    California at Davis, University of

    SUSTAINABLE TRANSPORTATION ENERGY PATHWAYS A Research Summary for Decision Makers Edited by Joan://creativecommons.org/licenses/by-nc-nd/3.0/>. For information on commercial licensing, contact copyright@ucdavis.edu. #12;171 SUSTAINABLE TRANSPORTATION ENERGY PATHWAYS PART 1: INDIVIDUAL FUEL/VEHICLE PATHWAYS PART 2 Chapter 7: Comparing Land, Water

  2. SUSTAINABLE TRANSPORTATION ENERGY PATHWAYS A Research Summary for Decision Makers

    E-Print Network [OSTI]

    California at Davis, University of

    SUSTAINABLE TRANSPORTATION ENERGY PATHWAYS A Research Summary for Decision Makers Edited by Joan of the fuels we consider #12;122 SUSTAINABLE TRANSPORTATION ENERGY PATHWAYS CHAPTER 5: COMPARING INFRASTRUCTURE://creativecommons.org/licenses/by-nc-nd/3.0/>. For information on commercial licensing, contact copyright@ucdavis.edu. #12;121 SUSTAINABLE

  3. SUSTAINABLE TRANSPORTATION ENERGY PATHWAYS A Research Summary for Decision Makers

    E-Print Network [OSTI]

    California at Davis, University of

    SUSTAINABLE TRANSPORTATION ENERGY PATHWAYS A Research Summary for Decision Makers Edited by Joan. #12;188 SUSTAINABLE TRANSPORTATION ENERGY PATHWAYS PART 3: SCENARIOS FOR A LOW-CARBON TRANSPORTATION://creativecommons.org/licenses/by-nc-nd/3.0/>. For information on commercial licensing, contact copyright@ucdavis.edu. #12;187 SUSTAINABLE

  4. SUSTAINABLE TRANSPORTATION ENERGY PATHWAYS A Research Summary for Decision Makers

    E-Print Network [OSTI]

    California at Davis, University of

    SUSTAINABLE TRANSPORTATION ENERGY PATHWAYS A Research Summary for Decision Makers Edited by Joan scenario. #12;210 SUSTAINABLE TRANSPORTATION ENERGY PATHWAYS CHAPTER 9: TRANSITION SCENARIOS FOR THE U://creativecommons.org/licenses/by-nc-nd/3.0/>. For information on commercial licensing, contact copyright@ucdavis.edu. #12;209 SUSTAINABLE

  5. SUSTAINABLE TRANSPORTATION ENERGY PATHWAYS A Research Summary for Decision Makers

    E-Print Network [OSTI]

    California at Davis, University of

    SUSTAINABLE TRANSPORTATION ENERGY PATHWAYS A Research Summary for Decision Makers Edited by Joan presented in this book was drawn from the Sustainable Transportation Energy Pathways (STEPS) program.S. Environmental Protection Agency Volkswagen #12;312 SUSTAINABLE TRANSPORTATION ENERGY PATHWAYS ACKNOWLEDGEMENTS

  6. SUSTAINABLE TRANSPORTATION ENERGY PATHWAYS A Research Summary for Decision Makers

    E-Print Network [OSTI]

    California at Davis, University of

    SUSTAINABLE TRANSPORTATION ENERGY PATHWAYS A Research Summary for Decision Makers Edited by Joan, batteries, and ultracapacitors. Andrew #12;316 SUSTAINABLE TRANSPORTATION ENERGY PATHWAYS AUTHORS://creativecommons.org/licenses/by-nc-nd/3.0/>. For information on commercial licensing, contact copyright@ucdavis.edu. #12;315 SUSTAINABLE

  7. SUSTAINABLE TRANSPORTATION ENERGY PATHWAYS A Research Summary for Decision Makers

    E-Print Network [OSTI]

    California at Davis, University of

    SUSTAINABLE TRANSPORTATION ENERGY PATHWAYS A Research Summary for Decision Makers Edited by Joan SUSTAINABLE TRANSPORTATION ENERGY PATHWAYS PART 4: POLICY AND SUSTAINABLE TRANSPORTATION Part 4: Policy and pollutants such as aerosols and black carbon. Third, more #12;250 SUSTAINABLE TRANSPORTATION ENERGY PATHWAYS

  8. SUSTAINABLE TRANSPORTATION ENERGY PATHWAYS A Research Summary for Decision Makers

    E-Print Network [OSTI]

    California at Davis, University of

    SUSTAINABLE TRANSPORTATION ENERGY PATHWAYS A Research Summary for Decision Makers Edited by Joan://creativecommons.org/licenses/by-nc-nd/3.0/>. For information on commercial licensing, contact copyright@ucdavis.edu. #12;133 SUSTAINABLE TRANSPORTATION ENERGY PATHWAYS PART 1: INDIVIDUAL FUEL/VEHICLE PATHWAYS PART 2 Chapter 6: Comparing Greenhouse

  9. SUSTAINABLE TRANSPORTATION ENERGY PATHWAYS A Research Summary for Decision Makers

    E-Print Network [OSTI]

    California at Davis, University of

    SUSTAINABLE TRANSPORTATION ENERGY PATHWAYS A Research Summary for Decision Makers Edited by Joan their feedstocks displaces food crops. #12;298 SUSTAINABLE TRANSPORTATION ENERGY PATHWAYS CONCLUSION: KEY FINDINGS. · Biofuels can make limited but significant contributions to a sustainable transportation energy supply

  10. SUSTAINABLE TRANSPORTATION ENERGY PATHWAYS A Research Summary for Decision Makers

    E-Print Network [OSTI]

    California at Davis, University of

    SUSTAINABLE TRANSPORTATION ENERGY PATHWAYS A Research Summary for Decision Makers Edited by Joan://creativecommons.org/licenses/by-nc-nd/3.0/>. For information on commercial licensing, contact copyright@ucdavis.edu. #12;1 SUSTAINABLE TRANSPORTATION ENERGY PATHWAYS ACKNOWLEDGEMENTS Introduction: Imagining the Future of Transportation We stand

  11. SUSTAINABLE TRANSPORTATION ENERGY PATHWAYS A Research Summary for Decision Makers

    E-Print Network [OSTI]

    California at Davis, University of

    SUSTAINABLE TRANSPORTATION ENERGY PATHWAYS A Research Summary for Decision Makers Edited by Joan by 2030, even though transportation accounts for #12;235 PART 3 SUSTAINABLE TRANSPORTATION ENERGY PATHWAYS://creativecommons.org/licenses/by-nc-nd/3.0/>. For information on commercial licensing, contact copyright@ucdavis.edu. #12;234 SUSTAINABLE

  12. Physics 105 Physics for Decision Makers: The Global Energy Crisis

    E-Print Network [OSTI]

    Lathrop, Daniel P.

    Physics 105 Fall 2012 Physics for Decision Makers: The Global Energy Crisis Professor Steve Rolston of energy and energy usage in the world, and the human impact on the global climate. · To learn, through the important societal questions of energy usage and environmental impact. This is a Marquee Science

  13. An Axiomatic Characterization of Continuous-Outcome Market Makers

    E-Print Network [OSTI]

    Chen, Yiling

    carbon dioxide emission level to hurricane landing location, are naturally perceived as continuous random-outcome events resulted in mechanisms with undesirable properties. In this pa- per, we take an axiomatic approach properties simultaneously. We define a general class of continuous-outcome market makers, which allows

  14. An Axiomatic Characterization of Continuous-Outcome Market Makers

    E-Print Network [OSTI]

    Chen, Yiling

    . Many events of interests, from carbon dioxide emission level to hurricane landing location-outcome events resulted in mechanisms with undesirable properties. In this pa- per, we take an axiomatic approach properties simultaneously. We define a general class of continuous-outcome market makers, which allows

  15. SUSTAINABLE TRANSPORTATION ENERGY PATHWAYS A Research Summary for Decision Makers

    E-Print Network [OSTI]

    California at Davis, University of

    SUSTAINABLE TRANSPORTATION ENERGY PATHWAYS A Research Summary for Decision Makers Edited by Joan Ogden and Lorraine Anderson #12;Institute of Transportation Studies University of California, Davis One TRANSPORTATION ENERGY PATHWAYS CHAPTER 4: COMPARING FUEL ECONOMIES AND COSTS OF ADVANCED VS. CONVENTIONAL

  16. SUSTAINABLE TRANSPORTATION ENERGY PATHWAYS A Research Summary for Decision Makers

    E-Print Network [OSTI]

    California at Davis, University of

    SUSTAINABLE TRANSPORTATION ENERGY PATHWAYS A Research Summary for Decision Makers Edited by Joan Ogden and Lorraine Anderson #12;Institute of Transportation Studies University of California, Davis One TRANSPORTATION ENERGY PATHWAYS CHAPTER 8: SCENARIOS FOR DEEP REDUCTIONS IN GREENHOUSE GAS EMISSIONS PART 3

  17. Iced Coffee Iced Yerba Mate "Tea"

    E-Print Network [OSTI]

    Iced Coffee Iced Yerba Mate "Tea" Iced Yerba Mate Latte Iced Chai Tea Latte Original, Green Tea Canned Soda Xing Tea Bottled Water Arizona Teas Energy Drinks Red Bull, SF Red Bull & Bing Jones Sodas $0 Cafe au Lait Hot Tea Yerba Mate "Tea" Yerba Mate Latte Chai Tea Latte - Original, Green Tea, or Sugar

  18. The Energy Policy Pyramid - A Hierarchal Tool for Decision Makers 

    E-Print Network [OSTI]

    Vieira, R. K.

    2006-01-01

    resources and, as such, should be considered prior to or in conjunction with conventional resources. Roof-integrated photovoltaics, hydrogen- powered vehicles or wind- powered water pumps are examples of alternative energy supply methods. Note... to purchase hybrid technology cars should instead reward buyers of clean fuel-efficient cars under a system of energy usage per mile and emissions. A hybrid Hummer may still only achieve one-third the gas mileage of a gasoline Honda Civic. Policy makers...

  19. Procuring Solar Energy: A Guide for Federal Facility Decision Makers,

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:Financing Tool Fits theCommitteeCrystallineReserve |Demonstration ProjectIntegrityDecision Makers

  20. DOE Subpoenas Maker of Super Power Showerhead | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:FinancingPetroleum Based| Department8, 2015 GATEWAY Takes onandField | Department ofSubpoenas Maker

  1. A SEMI-AUTOMATIC APPROACH FOR ESTIMATING NEAR SURFACE INTERNAL LAYERS FROM SNOW RADAR IMAGERY

    E-Print Network [OSTI]

    A SEMI-AUTOMATIC APPROACH FOR ESTIMATING NEAR SURFACE INTERNAL LAYERS FROM SNOW RADAR IMAGERY changing polar ice sheets. Identifying and tracing near surface internal layers in snow radar echograms can developed an approach for semi-automatically esti- mating near surface internal layers in snow radar

  2. Automatic Term-Level Abstraction

    E-Print Network [OSTI]

    Brady, Bryan

    2011-01-01

    Challenges . . . . . . . . . . . . . . . . . . Automatic5 Automatic Function Abstraction 5.1 Identifying Candidatethe Progress of Learning Algorithms 7.2.3 Automatic Feature

  3. Jack Case Â… Tool and die maker to plant manager

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration would likeUniverseIMPACT EVALUATIONIntroducing theActivation byIs aItemPolarTool and die maker

  4. WeatherMaker: Weather file conversion and evaluation

    SciTech Connect (OSTI)

    Balcomb, J.D.

    1999-07-01

    WeatherMaker is a weather-data utility for use with the ENERGY-10 design-tool computer program. The three main features are: Convert--Weather files can be converted from one format to another. For example, a TMY2 format file can be converted to an ENERGY-10 binary file that can be used in a simulation. This binary file can then be converted to a text format that allows it to be read and/or manipulated in WordPad or Excel. Evaluate--ENERGY-10 weather files can be studied in great detail. There are 8 graphical displays of the data that provide insight into the data, and a summary tables that presents results calculated from the hourly data. Adjust--Hourly temperature data can be adjusted starting with hourly data from a nearby TMY2 site. Dry-bulb and wet-bulb temperatures are adjusted up or down as required to match given monthly statistics. This feature can be used to generate weather files for any of 3,958 sites in the US where such monthly statistics are tabulated. The paper shows a variety of results, explains the methods used, and discusses the rationale for making the adjustments. It is anticipated that WeatherMaker will be released by the time of the ASES Solar 99 conference.

  5. Community Ice Sheet Model (CISM2) Development and Marine Ice...

    Office of Scientific and Technical Information (OSTI)

    Conference: Community Ice Sheet Model (CISM2) Development and Marine Ice Sheet Simulations Citation Details In-Document Search Title: Community Ice Sheet Model (CISM2) Development...

  6. Arctic ice islands

    SciTech Connect (OSTI)

    Sackinger, W.M.; Jeffries, M.O.; Lu, M.C.; Li, F.C.

    1988-01-01

    The development of offshore oil and gas resources in the Arctic waters of Alaska requires offshore structures which successfully resist the lateral forces due to moving, drifting ice. Ice islands are floating, a tabular icebergs, up to 60 meters thick, of solid ice throughout their thickness. The ice islands are thus regarded as the strongest ice features in the Arctic; fixed offshore structures which can directly withstand the impact of ice islands are possible but in some locations may be so expensive as to make oilfield development uneconomic. The resolution of the ice island problem requires two research steps: (1) calculation of the probability of interaction between an ice island and an offshore structure in a given region; and (2) if the probability if sufficiently large, then the study of possible interactions between ice island and structure, to discover mitigative measures to deal with the moving ice island. The ice island research conducted during the 1983-1988 interval, which is summarized in this report, was concerned with the first step. Monte Carlo simulations of ice island generation and movement suggest that ice island lifetimes range from 0 to 70 years, and that 85% of the lifetimes are less then 35 years. The simulation shows a mean value of 18 ice islands present at any time in the Arctic Ocean, with a 90% probability of less than 30 ice islands. At this time, approximately 34 ice islands are known, from observations, to exist in the Arctic Ocean, not including the 10-meter thick class of ice islands. Return interval plots from the simulation show that coastal zones of the Beaufort and Chukchi Seas, already leased for oil development, have ice island recurrences of 10 to 100 years. This implies that the ice island hazard must be considered thoroughly, and appropriate safety measures adopted, when offshore oil production plans are formulated for the Alaskan Arctic offshore. 132 refs., 161 figs., 17 tabs.

  7. Appliance Equipment Standards Northwest Impact Study

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

    (2) Automatic Ice Makers; (3) Commercial Water Heaters; (4) Ranges and Ovens; (5) Vending Machines; (6) Pool Heaters; (7) Small electric motors; (8) Residential Central Air...

  8. ISSUANCE 2014-12-31: Energy Conservation Program: Energy Conservation...

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

    Energy Conservation Program: Energy Conservation Standards for Automatic Commercial Ice Makers, Final Rule. acimfinalrule.pdf More Documents & Publications 2014-03-07 Issuance:...

  9. Energy Department Issues New Appliance Efficiency Standards ...

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

    and heating equipment; commercial refrigerators, freezers, and refrigerator-freezers; automatic commercial ice makers; and commercial clothes washers. The Department of Energy...

  10. DOE 10 CFR Part 429, Docket Number: EERE-2010-BT-CE-0014, RIN...

    Office of Environmental Management (EM)

    equipment; commercial water heating equipment; walk-in coolers; walk-in freezers; and automatic commercial ice makers. DOE may extend compliance date for other commercial equipment...

  11. DOE 10 CFR Part 431 EERE-2010-BT-TP-0036 RIN 1904-AC-38 Submission...

    Office of Environmental Management (EM)

    Program for Certain Commercial and Industrial Equipment: Test Procedures for Automatic Commercial Ice Makers SubmissionofCommentsbyHowe.pdf More Documents &...

  12. Howe-DOE Meeting of October 20 2011 Detail Memo | Department...

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

    ISSUANCE 2014-12-31: Energy Conservation Program: Energy Conservation Standards for Automatic Commercial Ice Makers, Final Rule Association of Home Appliance Manufacturers...

  13. AHRI Extension of Deadline for Comments on the Commercial and...

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

    and Blowers ASRAC Working Group; Notice of Intent ISSUANCE 2014-12-31: Energy Conservation Program: Energy Conservation Standards for Automatic Commercial Ice Makers, Final Rule...

  14. http://www.ices.cmu.edu/ballista Prof. Philip Koopman

    E-Print Network [OSTI]

    Koopman, Philip

    http://www.ices.cmu.edu/ballista Prof. Philip Koopman koopman@cmu.edu - (412) 268-5225 - http robustness #12;3 Overview: Automated Robustness Testing u System Robustness · Motivation · Ballista automatic · Technology Transfer · Application to Non OS APIs u Conclusions A Ballista is an ancient siege weapon

  15. Wind, sea ice, inertial oscillations and upper ocean mixing in Marguerite Bay, Western Antarctic Peninsula : observations and modeling

    E-Print Network [OSTI]

    Hyatt, Jason

    2006-01-01

    Two years of moored oceanographic and automatic weather station data which span the winter ice seasons of 2001-2003 within Marguerite Bay on the western Antarctic Peninsula (wAP) shelf were collected as part of the Southern ...

  16. Safety Evaluation of the FuelMaker Home Refueling Concept: Final Report

    SciTech Connect (OSTI)

    Waterland, L. R.; Powars, C.; Stickles, P.

    2005-02-01

    Report summarizes results of a National Renewable Energy Laboratory safety evaluation of the FuelMaker natural gas vehicle home refueling appliance (HRA, aka Phill).

  17. Global Solar Opportunity Tool: A Tool for Policy Makers and Energy...

    Open Energy Info (EERE)

    Global Solar Opportunity Tool: A Tool for Policy Makers and Energy Analysts Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Global Solar Opportunity Tool: A Tool for...

  18. Webinar: Procuring Fuel Cells for Stationary Power: A Guide for Federal Facility Decision Makers

    Broader source: Energy.gov [DOE]

    Video recording and text version of the webinar titled, Procuring Fuel Cells for Stationary Power: A Guide for Federal Facility Decision Makers, originally presented on May 8, 2012.

  19. Ice electrode electrolytic cell

    DOE Patents [OSTI]

    Glenn, D.F.; Suciu, D.F.; Harris, T.L.; Ingram, J.C.

    1993-04-06

    This invention relates to a method and apparatus for removing heavy metals from waste water, soils, or process streams by electrolytic cell means. The method includes cooling a cell cathode to form an ice layer over the cathode and then applying an electric current to deposit a layer of the heavy metal over the ice. The metal is then easily removed after melting the ice. In a second embodiment, the same ice-covered electrode can be employed to form powdered metals.

  20. Ice electrode electrolytic cell

    DOE Patents [OSTI]

    Glenn, David F. (Idaho Falls, ID); Suciu, Dan F. (Idaho Falls, ID); Harris, Taryl L. (Idaho Falls, ID); Ingram, Jani C. (Idaho Falls, ID)

    1993-01-01

    This invention relates to a method and apparatus for removing heavy metals from waste water, soils, or process streams by electrolytic cell means. The method includes cooling a cell cathode to form an ice layer over the cathode and then applying an electric current to deposit a layer of the heavy metal over the ice. The metal is then easily removed after melting the ice. In a second embodiment, the same ice-covered electrode can be employed to form powdered metals.

  1. 12. Automatic Groups Suppose

    E-Print Network [OSTI]

    Gilman, Robert

    for the generator a to the automaton in Figure 1, we obtain a synchronized automaton which accepts a linear language12. Automatic Groups Suppose : G is a choice of generators, and R is a rational language which are all synchronous and rational. We will define synchronous presently. R and are called an automatic

  2. Automatic Semigroups: Constructions and Subsemigroups

    E-Print Network [OSTI]

    St Andrews, University of

    Automatic Semigroups: Constructions and Subsemigroups Luis Descal#24;co Ph.D. Thesis University Semigroups . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 3 Automatic semigroups . . . . . . . . . . . . . . . . . . . . . . . . 9 2 Syntactic monoids and the free group 18 1 Automatic structure

  3. Odd and Even Cycles in MakerBreaker Games Malgorzata Bednarska #

    E-Print Network [OSTI]

    Pikhurko, Oleg

    matched by a previous result of the authors [1] that if q # #n/2# - 1 then Breaker can ensure that Maker of the authors [1] imply that Maker has a strategy which guarantees a red cycle if and only if q

  4. Modeling Energy Use and Technological Change for Policy Makers: Campbell Watkins'

    E-Print Network [OSTI]

    31 Modeling Energy Use and Technological Change for Policy Makers: Campbell Watkins' Contribution to Campbell, I survey the last 30 years of modeling energy use for assisting policy makers, an area where his buys more efficient fridges, we use less energy. We have substituted capital (in the form

  5. Coordinated Price-Maker Operation of Large Energy Storage Units in Nodal Energy Markets

    E-Print Network [OSTI]

    Mohsenian-Rad, Hamed

    1 Coordinated Price-Maker Operation of Large Energy Storage Units in Nodal Energy Markets Hamed to coordinate the operation of large, price-maker, and geographically dispersed energy storage / battery systems in a nodal transmission-constrained energy market. The energy storage units are assumed to be investor

  6. AUTOMATIC PRESENTATIONS AND SEMIGROUP CONSTRUCTIONS

    E-Print Network [OSTI]

    St Andrews, University of

    AUTOMATIC PRESENTATIONS AND SEMIGROUP CONSTRUCTIONS Alan J. Cain1, Graham Oliver2, Nik Ruskuc3 nik@mcs.st-andrews.ac.uk, 4 rmt@mcs.le.ac.uk abstract An automatic presentation for a relational an automatic presentation is said to be FA-presentable. This pa- per studies the interaction of automatic

  7. Automatic presentations and semigroup constructions

    E-Print Network [OSTI]

    St Andrews, University of

    Automatic presentations and semigroup constructions Alan J. Cain1 , Graham Oliver2 , Nik Ruskuc3 nik@mcs.st-andrews.ac.uk, 4 rmt@mcs.le.ac.uk Abstract An automatic presentation for a relational an automatic presenta- tion is said to be FA-presentable. This paper studies the interac- tion of automatic

  8. Automatic switching matrix

    DOE Patents [OSTI]

    Schlecht, Martin F. (Cambridge, MA); Kassakian, John G. (Newton, MA); Caloggero, Anthony J. (Lynn, MA); Rhodes, Bruce (Dorchester, MA); Otten, David (Newton, MA); Rasmussen, Neil (Sudbury, MA)

    1982-01-01

    An automatic switching matrix that includes an apertured matrix board containing a matrix of wires that can be interconnected at each aperture. Each aperture has associated therewith a conductive pin which, when fully inserted into the associated aperture, effects electrical connection between the wires within that particular aperture. Means is provided for automatically inserting the pins in a determined pattern and for removing all the pins to permit other interconnecting patterns.

  9. Global Simulations of Ice nucleation and Ice Supersaturation...

    Office of Scientific and Technical Information (OSTI)

    Article: Global Simulations of Ice nucleation and Ice Supersaturation with an Improved Cloud Scheme in the Community Atmosphere Model Citation Details In-Document Search Title:...

  10. Profit-Charging Market Makers with Bounded Loss, Vanishing Bid/Ask Spreads, and Unlimited Market Depth

    E-Print Network [OSTI]

    Fiat, Amos

    are oppo- sitional. In this paper, we design market makers that satisfy all four. We achieveProfit-Charging Market Makers with Bounded Loss, Vanishing Bid/Ask Spreads, and Unlimited Market desiderata for automated market makers have appeared in the literature: (1) bounded loss, (2) the abil- ity

  11. Automatic Routing Using Multiple Prefix Labels

    E-Print Network [OSTI]

    Garcia-Luna-Aceves, J.J.; Ghosh, R.

    2012-01-01

    Automatic Routing Using Multiple Prefix Labels Rumi GhoshWe present Multi-label Automatic Routing (MAR), the firstthe routing is automatic based on the positional labels of

  12. Automatic aligning free space communication platform

    E-Print Network [OSTI]

    Andrews, John Michael

    2008-01-01

    OF CALIFORNIA, SAN DIEGO Automatic Aligning Free Space36 v ABSTRACT OF THE THESIS Automatic Aligning Free Spacetransmitter/receiver. With automatic search and alignment,

  13. Automatic Incremental Routing Using Multiple Roots

    E-Print Network [OSTI]

    Ghosh, Rumi; Garcia-Luna-Aceves, J.J.

    2013-01-01

    J. J. Garcia-Luna-Aceves, “Automatic Routing Using MultipleAutomatic Incremental Routing Using Multiple Roots RumiWe present Multi-root Automatic Incremental Rout- ing (

  14. Automatic Web Spreadsheet Data

    E-Print Network [OSTI]

    Cafarella, Michael J.

    Automatic Web Spreadsheet Data Extraction Shirley Zhe Chen Michael Cafarella SSW 2013 #12.wto.org 3863 0.94% www.doh.wa.gov 3579 0.87% www.nsf.gov 2770 0.67% nces.ed.gov 2177 0.53% ·Our Web crawl spreadsheet with either a hierarchical left or top attribute region. #12;Web Spreadsheets Observations

  15. Reactor component automatic grapple

    DOE Patents [OSTI]

    Greenaway, Paul R. (Bethel Park, PA)

    1982-01-01

    A grapple for handling nuclear reactor components in a medium such as liquid sodium which, upon proper seating and alignment of the grapple with the component as sensed by a mechanical logic integral to the grapple, automatically seizes the component. The mechanical logic system also precludes seizure in the absence of proper seating and alignment.

  16. Automatic sweep circuit

    DOE Patents [OSTI]

    Keefe, Donald J. (Lemont, IL)

    1980-01-01

    An automatically sweeping circuit for searching for an evoked response in an output signal in time with respect to a trigger input. Digital counters are used to activate a detector at precise intervals, and monitoring is repeated for statistical accuracy. If the response is not found then a different time window is examined until the signal is found.

  17. Arctic Sea ice model sensitivities.

    SciTech Connect (OSTI)

    Peterson, Kara J.; Bochev, Pavel Blagoveston; Paskaleva, Biliana Stefanova

    2010-12-01

    Arctic sea ice is an important component of the global climate system and, due to feedback effects, the Arctic ice cover is changing rapidly. Predictive mathematical models are of paramount importance for accurate estimates of the future ice trajectory. However, the sea ice components of Global Climate Models (GCMs) vary significantly in their prediction of the future state of Arctic sea ice and have generally underestimated the rate of decline in minimum sea ice extent seen over the past thirty years. One of the contributing factors to this variability is the sensitivity of the sea ice state to internal model parameters. A new sea ice model that holds some promise for improving sea ice predictions incorporates an anisotropic elastic-decohesive rheology and dynamics solved using the material-point method (MPM), which combines Lagrangian particles for advection with a background grid for gradient computations. We evaluate the variability of this MPM sea ice code and compare it with the Los Alamos National Laboratory CICE code for a single year simulation of the Arctic basin using consistent ocean and atmospheric forcing. Sensitivities of ice volume, ice area, ice extent, root mean square (RMS) ice speed, central Arctic ice thickness,and central Arctic ice speed with respect to ten different dynamic and thermodynamic parameters are evaluated both individually and in combination using the Design Analysis Kit for Optimization and Terascale Applications (DAKOTA). We find similar responses for the two codes and some interesting seasonal variability in the strength of the parameters on the solution.

  18. Graph Automatic Semigroups Rachael Carey

    E-Print Network [OSTI]

    St Andrews, University of

    Graph Automatic Semigroups Rachael Carey NBSAN St Andrews 22/04/2015 Rachael Carey NBSAN St Andrews Graph Automatic Semigroups #12;Regular languages An alphabet is a set of symbols.The elements are accepted by finite state automata. Rachael Carey NBSAN St Andrews Graph Automatic Semigroups #12;Graph

  19. Automatic Linear Orders (Revised Version)

    E-Print Network [OSTI]

    Stephan, Frank

    CDMTCS Research Report Series Automatic Linear Orders and Trees (Revised Version) Bakhadyr; Automatic Linear Orders and Trees Bakhadyr Khoussainov, Sasha Rubin and Frank Stephan November 13, 2003 emphasis is on trees and linear orders. We study the relationship between automatic linear orders and trees

  20. Ice Bear® Storage Module | Department of Energy

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

    Ice Bear Storage Module Ice Bear Storage Module Thermal Energy Storage for Light Commercial Refrigerant-Based Air Conditioning Units The Ice Bear storage technology was...

  1. A Practical Liquidity-Sensitive Automated Market Maker ABRAHAM OTHMAN, Carnegie Mellon University

    E-Print Network [OSTI]

    and Behavioral Sciences]: Economics General Terms: Economics Additional Key Words and Phrases: Market design values of every asset. A prediction market, or any market explicitly designed to uncover the value14 A Practical Liquidity-Sensitive Automated Market Maker ABRAHAM OTHMAN, Carnegie Mellon

  2. Makers op waarde geschat Een nieuwe selectiemethode voor de Nederlandse film

    E-Print Network [OSTI]

    Boucherie, Richard J.

    Makers op waarde geschat Een nieuwe selectiemethode voor de Nederlandse film 6 juni 2008 Auteurs: Niek Baër Maarten Bos Arjan Feenstra Begeleiders: Esmé Lammers (Nederlands Fonds voor de Film) Judith . . . . . . . . . . . . . . . . . . . . . . . . 6 2.2.1 Het cijfer van een film . . . . . . . . . . . . . . . . . . . . 6 2.2.2 Het cijfer van een

  3. Understanding forest fire dynamics is becoming increasingly important as scientists, policy makers,

    E-Print Network [OSTI]

    Turner, Monica G.

    Understanding forest fire dynamics is becoming increasingly important as scientists, policy makers, it is critical that we incorporate our best understanding of the inherent variability in forest fire dynamics context of fire regimes. Natural forest fire regimes vary widely, yet this complexity is often overlooked

  4. Profit-Charging Market Makers with Bounded Loss, Vanishing Bid/Ask Spreads, and Unlimited Market Depth

    E-Print Network [OSTI]

    are oppo- sitional. In this paper, we design market makers that satisfy all four. We achieve-agent Systems General Terms: Algorithms, Design, Economics Additional Key Words and Phrases: Market MakingProfit-Charging Market Makers with Bounded Loss, Vanishing Bid/Ask Spreads, and Unlimited Market

  5. AUTOMATIC PROGRAM TIMING PROFILES WITH FTN4

    E-Print Network [OSTI]

    Friedman, Richard.

    2010-01-01

    September 22-25, 1980 AUTOMATIC PROGRAM TIMING PROFILES WITHW-7405-ENG-48 LBL-1l290 Automatic Program Timing ProfilesW-1405-ENG-48 LBL-11290 Automatic Program Timing Profiles

  6. 2014-03-07 Issuance: Energy Conservation Standards for Automatic Commercial

    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 y A s s iof1 of 8 2 of 8 3 of 8 4 of 8 5Ice Makers;

  7. Hidden force floating ice

    E-Print Network [OSTI]

    Chang Q. Sun

    2015-01-17

    Because of the segmental specific-heat disparity of the hydrogen bond (O:H-O) and the Coulomb repulsion between oxygen ions, cooling elongates the O:H-O bond at freezing by stretching its containing angle and shortening the H-O bond with an association of larger O:H elongation, which makes ice less dense than water, allowing it to float.

  8. Ice Storm Supercomputer

    ScienceCinema (OSTI)

    None

    2013-05-28

    "A new Idaho National Laboratory supercomputer is helping scientists create more realistic simulations of nuclear fuel. Dubbed 'Ice Storm,' this 2048-processor machine allows researchers to model and predict the complex physics behind nuclear reactor behavior. And with a new visualization lab, the team can see the results of its simulations on the big screen." For more information about INL research, visit http://www.facebook.com/idahonationallaboratory.

  9. Clothes Dryer Automatic Termination Evaluation

    SciTech Connect (OSTI)

    TeGrotenhuis, Ward E.

    2014-10-01

    Volume 2: Improved Sensor and Control Designs Many residential clothes dryers on the market today provide automatic cycles that are intended to stop when the clothes are dry, as determined by the final remaining moisture content (RMC). However, testing of automatic termination cycles has shown that many dryers are susceptible to over-drying of loads, leading to excess energy consumption. In particular, tests performed using the DOE Test Procedure in Appendix D2 of 10 CFR 430 subpart B have shown that as much as 62% of the energy used in a cycle may be from over-drying. Volume 1 of this report shows an average of 20% excess energy from over-drying when running automatic cycles with various load compositions and dryer settings. Consequently, improving automatic termination sensors and algorithms has the potential for substantial energy savings in the U.S.

  10. Automatic Replies Outlook Web App User Guide

    E-Print Network [OSTI]

    Calgary, University of

    Automatic Replies Outlook Web App User Guide Automatic Replies (Out of Office) allows you to create or on vacation. Use the following steps to use the Automatic Replies option in Outlook Web App (OWA). Turn On Automatic Reply 1. Log On to Outlook Web App http://mail.ucalgary.ca 2. Click Options in the top right

  11. Automatic semigroups and BruckReilly extensions

    E-Print Network [OSTI]

    St Andrews, University of

    Automatic semigroups and Bruck­Reilly extensions Alan J. Cain Centro de Matemática Universidade do---. : . The interaction of automatic semigroups and Bruck­Reilly exten- sions is studied. It is proved that every automatic Bruck­Reilly extension has an automatic base semigroup. This result is then applied to answer

  12. Automatic safety rod for reactors

    DOE Patents [OSTI]

    Germer, John H. (San Jose, CA)

    1988-01-01

    An automatic safety rod for a nuclear reactor containing neutron absorbing material and designed to be inserted into a reactor core after a loss-of-core flow. Actuation is based upon either a sudden decrease in core pressure drop or the pressure drop decreases below a predetermined minimum value. The automatic control rod includes a pressure regulating device whereby a controlled decrease in operating pressure due to reduced coolant flow does not cause the rod to drop into the core.

  13. Climate Impacts of Ice Nucleation

    SciTech Connect (OSTI)

    Gettelman, A.; Liu, Xiaohong; Barahona, Donifan; Lohmann, U.; Chen, Chih-Chieh

    2012-10-27

    Several different ice nucleation parameterizations in two different General Circulation Models are used to understand the effects of ice nucleation on the mean climate state, and the climate effect of aerosol perturbations to ice clouds. The simulations have different ice microphysical states that are consistent with the spread of observations. These different states occur from different parameterizations of the ice cloud nucleation processes, and feature different balances of homogeneous and heterogeneous nucleation. At reasonable efficiencies, consistent with laboratory measurements and constrained by the global radiative balance, black carbon has a small (-0.06 Wm?2) and not statistically significant climate effect. Indirect effects of anthropogenic aerosols on cirrus clouds occur mostly due to increases in homogeneous nucleation fraction as a consequence of anthropogenic sulfur emissions. The resulting ice indirect effects do not seem strongly dependent on the ice micro-physical balance, but are slightly larger for those states with less homogeneous nucleation in the base state. The total ice AIE is estimated at 0.26±0.09 Wm?2 (1? uncertainty). This represents an offset of 20-30% of the simulated total Aerosol Indirect Effect for ice and liquid clouds.

  14. A group-embeddable non-automatic semigroup whose universal group is automatic

    E-Print Network [OSTI]

    St Andrews, University of

    A group-embeddable non-automatic semigroup whose universal group is automatic Alan J. Cain School in a group and S is not automatic, but the universal group of S is automatic. 2000 Mathematics Subject Classification: , . The concept of an automatic structure has been generalized from groups [ECH+] to semigroups

  15. ARM - Ice Cores

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Comments? WeDatastreamstps DocumentationAtlanticENAField ParticipantsField Campaign StatisticsPastIce Cores

  16. Therapeutic Hypothermia: Protective Cooling Using Medical Ice...

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

    Therapeutic Hypothermia: Protective Cooling Using Medical Ice Slurry Technology available for licensing: Proprietary method and equipment for making an ice slurry coolant to induce...

  17. Biogeochemistry in Sea Ice: CICE model developments

    SciTech Connect (OSTI)

    Jeffery, Nicole; Hunke, Elizabeth; Elliott, Scott; Turner, Adrian

    2012-06-18

    Polar primary production unfolds in a dynamic sea ice environment, and the interactions of sea ice with ocean support and mediate this production. In spring, for example, fresh melt water contributes to the shoaling of the mixed layer enhancing ice edge blooms. In contrast, sea ice formation in the fall reduces light penetration to the upper ocean slowing primary production in marine waters. Polar biogeochemical modeling studies typically consider these types of ice-ocean interactions. However, sea ice itself is a biogeochemically active medium, contributing a significant and, possibly, essential source of primary production to polar regions in early spring and fall. Here we present numerical simulations using the Los Alamos Sea Ice Model (CICE) with prognostic salinity and sea ice biogeochemistry. This study investigates the relationship between sea ice multiphase physics and sea ice productivity. Of particular emphasis are the processes of gravity drainage, melt water flushing, and snow loading. During sea ice formation, desalination by gravity drainage facilitates nutrient exchange between ocean and ice maintaining ice algal blooms in early spring. Melt water flushing releases ice algae and nutrients to underlying waters limiting ice production. Finally, snow loading, particularly in the Southern Ocean, forces sea ice below the ocean surface driving an upward flow of nutrient rich water into the ice to the benefit of interior and freeboard communities. Incorporating ice microphysics in CICE has given us an important tool for assessing the importance of these processes for polar algal production at global scales.

  18. Light propagation in the South Pole ice

    SciTech Connect (OSTI)

    Williams, Dawn; Collaboration: IceCube Collaboration

    2014-11-18

    The IceCube Neutrino Observatory is located in the ice near the geographic South Pole. Particle showers from neutrino interactions in the ice produce light which is detected by IceCube modules, and the amount and pattern of deposited light are used to reconstruct the properties of the incident neutrino. Since light is scattered and absorbed by ice between the neutrino interaction vertex and the sensor, IceCube event reconstruction depends on understanding the propagation of light through the ice. This paper presents the current status of modeling light propagation in South Pole ice, including the recent observation of an azimuthal anisotropy in the scattering.

  19. MEAT, POULTRY, Still contains ice

    E-Print Network [OSTI]

    Liskiewicz, Maciej

    MEAT, POULTRY, SEAFOOD Still contains ice crystals and feels as cold, and ground meats Refreeze Discard Poultry and ground poultry Refreeze Discard Variety meats may safely re-freeze foods that s:ll contain ice crystals or that have been

  20. Learning environment simulator: a tool for local decision makers and first responders

    SciTech Connect (OSTI)

    Leclaire, Rene J [Los Alamos National Laboratory; Hirsch, Gary B [CLE, INCORPORATED

    2009-01-01

    The National Infrastructure Simulation and Analysis Center (NISAC) has developed a prototype learning environment simulator (LES) based on the Critical Infrastructure Protection Decision Support System (CIPDSS) infrastructure and scenario models. The LES is designed to engage decision makers at the grass-roots level (local/city/state) to deepen their understanding of an evolving crisis, enhance their intuition and allow them to test their own strategies for events before they occur. An initial version is being developed, centered on a pandemic influenza outbreak and has been successfully tested with a group of hospital administrators and first responders. LES is not a predictive tool but rather a simulated environment allowing the user to experience the complexities of a crisis before it happens. Users can contrast various approaches to the crisis, competing with alternative strategies of their own or other participants. LES is designed to assist decision makers in making informed choices by functionally representing relevant scenarios before they occur, including impacts to critical infrastructures with their interdependencies, and estimating human health & safety and economic impacts. In this paper a brief overview of the underlying models are given followed by a description of the LES, its interface and usage and an overview of the experience testing LES with a group of hospital administrators and first responders. The paper concludes with a brief discussion of the work remaining to make LES operational.

  1. AUTOMATIC DOCUMENT CLASSIFICATION BASED ON EXPERT HUMAN DECISIONS

    E-Print Network [OSTI]

    Cahn, D.F.

    2010-01-01

    References 1. G. Salton, Automatic Information Organizationstatistical output from automatic document classifier. (Test26, 19,77 LBL-6164 r~ \\ AUTOMATIC DOCUMENT C LASsiFICA TION

  2. Automatic Performance Visualization of Distributed Real-time systems

    E-Print Network [OSTI]

    Harmon, Trevor; Klefstad, Raymond

    2006-01-01

    Automatic Performance Visualization of Distributed Real-Timepro?l- ing tools with automatic instrumentation and dataprocedure was not entirely automatic be- cause, as explained

  3. Automatic Microaneurysm Detection and Characterization Through Digital Color Fundus Images

    E-Print Network [OSTI]

    Martins, Charles

    2010-01-01

    and M. D. Abr` moff. Automatic detection of red a lesions inAutomatic Microaneurysm Detection and Characterizationimportant task in the automatic MAs characterization scheme.

  4. Automatic grammar correction : using PCFGs and whole sentence context

    E-Print Network [OSTI]

    Kumar, Vineet

    2012-01-01

    OF CALIFORNIA, SAN DIEGO Automatic Grammar Correction: Using2002). Bleu: a method for automatic evaluation of machineABSTRACT OF THE THESIS Automatic Grammar Correction: Using

  5. AUTOMATIC VARIABLE VENTILATION CONTROL SYSTEMS BASED ON AIR QUALITY DETECTION

    E-Print Network [OSTI]

    Turiel, Isaac

    2011-01-01

    U"'"'''"'" - e "'~saon Automatic Variable Ventilation1979) LBL~8893 EEB Vent 79-3 Automatic variable ventilationmeasurement capabilities o Automatic operation o Low

  6. Automatic Design of Prosodic Features for Sentence Segmentation

    E-Print Network [OSTI]

    Fung, James

    2011-01-01

    and Katsuya Takanashi. Automatic de- tection of sentence andStolcke. Prosody-based automatic detection of annoyance andand Elizabeth Shriberg. Automatic dialog act segmen- tation

  7. Automatic rapid attachable warhead section

    DOE Patents [OSTI]

    Trennel, A.J.

    1994-05-10

    Disclosed are a method and apparatus for automatically selecting warheads or reentry vehicles from a storage area containing a plurality of types of warheads or reentry vehicles, automatically selecting weapon carriers from a storage area containing at least one type of weapon carrier, manipulating and aligning the selected warheads or reentry vehicles and weapon carriers, and automatically coupling the warheads or reentry vehicles with the weapon carriers such that coupling of improperly selected warheads or reentry vehicles with weapon carriers is inhibited. Such inhibition enhances safety of operations and is achieved by a number of means including computer control of the process of selection and coupling and use of connectorless interfaces capable of assuring that improperly selected items will be rejected or rendered inoperable prior to coupling. Also disclosed are a method and apparatus wherein the stated principles pertaining to selection, coupling and inhibition are extended to apply to any item-to-be-carried and any carrying assembly. 10 figures.

  8. Automatic rapid attachable warhead section

    DOE Patents [OSTI]

    Trennel, Anthony J. (Albuquerque, NM)

    1994-05-10

    Disclosed are a method and apparatus for (1) automatically selecting warheads or reentry vehicles from a storage area containing a plurality of types of warheads or reentry vehicles, (2) automatically selecting weapon carriers from a storage area containing at least one type of weapon carrier, (3) manipulating and aligning the selected warheads or reentry vehicles and weapon carriers, and (4) automatically coupling the warheads or reentry vehicles with the weapon carriers such that coupling of improperly selected warheads or reentry vehicles with weapon carriers is inhibited. Such inhibition enhances safety of operations and is achieved by a number of means including computer control of the process of selection and coupling and use of connectorless interfaces capable of assuring that improperly selected items will be rejected or rendered inoperable prior to coupling. Also disclosed are a method and apparatus wherein the stated principles pertaining to selection, coupling and inhibition are extended to apply to any item-to-be-carried and any carrying assembly.

  9. CX-100156 Categorical Exclusion Determination

    Office of Energy Efficiency and Renewable Energy (EERE)

    Final Rule for Energy Conservation Standards for Automatic Commercial Ice Makers RIN: 1904-AC39 CX(s) Applied: B5.1 Date: 12/29/2014 Location(s): Nationwide Office(s): Golden Field Office

  10. CX-010764: Categorical Exclusion Determination

    Broader source: Energy.gov [DOE]

    Notice of Proposed Rulemaking for New Energy Conservation Standards for Automatic Commercial Ice Makers CX(s) Applied: B5.1 Date: 07/09/2013 Location(s): Nationwide Offices(s): Golden Field Office

  11. Walk-In Panels | Department of Energy

    Energy Savers [EERE]

    v1.0 More Documents & Publications Metal Halide Lamp Ballasts and Fixtures Refrigerators and Refrigerator-Freezers (Appendix A1 after May 2, 2011) Automatic Commercial Ice Makers...

  12. Winter Driving Tips Driving in Ice & Snow

    E-Print Network [OSTI]

    Capogna, Luca

    Winter Driving Tips Driving in Ice & Snow: When you must drive, clear the ice and snow from your in ice and snow, other drivers will be traveling cautiously. Don't disrupt the flow of traffic by driving handle better in ice and snow, but they do not have flawless traction, and skids can occur unexpectedly

  13. Evaluating Automatic Summaries of Meeting Recordings 

    E-Print Network [OSTI]

    Murray, Gabriel; Renals, Steve; Carletta, Jean; Moore, Johanna

    2005-01-01

    The research below explores schemes for evaluating automatic summaries of business meetings, using the ICSI Meeting Corpus. Both automatic and subjective evaluations were carried out, with a central interest being whether ...

  14. Automatic Utterance Type Detection Using Suprasegmental Features 

    E-Print Network [OSTI]

    Wright, Helen

    The goal of the work presented here is to automatically predict the type of an utterance in spoken dialogue by using automatically extracted suprasegmental information. For this task we present and compare three stochastic algorithms: hidden Markov...

  15. Automatic induction of verb classes using clustering

    E-Print Network [OSTI]

    Sun, Lin

    2013-04-30

    no comprehensive or domain-speci?c lexical classi?cation is available. This thesis investigates how Levin-style lexical semantic classes could be learned automatically from corpus data. Automatic acquisition is cost-effective when it involves either...

  16. Automatic Quantification of Cache Side-Channels

    E-Print Network [OSTI]

    International Association for Cryptologic Research (IACR)

    Automatic Quantification of Cache Side-Channels Boris K¨opf1 , Laurent Mauborgne1 , and Mart. In this paper we propose a novel method for automatically deriving upper bounds on the amount of information

  17. Automatic caption generation for news images 

    E-Print Network [OSTI]

    Feng, Yansong

    2011-06-30

    This thesis is concerned with the task of automatically generating captions for images, which is important for many image-related applications. Automatic description generation for video frames would help security ...

  18. Short Papers___________________________________________________________________________________________________ Automatic Classification of

    E-Print Network [OSTI]

    Lyons, Michael J.

    ___________________________________________________________________________________________________ Automatic Classification of Single Facial Images Michael J. Lyons, Julien Budynek, and Shigeru Akamatsu image sets are presented for the classification of sex, Şrace,ş and expression. A visual interpretation single digital images. The examples chosen to demonstrate our method are facial expression, sex

  19. Automatic Sets of Rational Numbers Eric Rowland

    E-Print Network [OSTI]

    Rowland, Eric

    Automatic Sets of Rational Numbers Eric Rowland Universit´e de Li`ege D´epartement de Math Abstract The notion of a k-automatic set of integers is well-studied. We develop a new notion -- the k-automatic recall a well-studied concept, that of k-automatic set (see, e.g., [8, 9, 2]): Definition 1. We say

  20. Automatic Sets of Rational Numbers Eric Rowland

    E-Print Network [OSTI]

    Rowland, Eric

    Automatic Sets of Rational Numbers Eric Rowland Universitâ??e de Liâ??ege Dâ??epartement de Math Abstract The notion of a k­automatic set of integers is well­studied. We develop a new notion --- the k­automatic, as follows: [L] k = {[w] k : w # L}. (2) We now recall a well­studied concept, that of k­automatic set (see

  1. Automatic Design Exploration Framework for Multicores with Reconfigurable Accelerators

    E-Print Network [OSTI]

    Kasahara, Hironori

    Automatic Design Exploration Framework for Multicores with Reconfigurable Accelerators Cecilia Gonz that performs au- tomatic generation of fine-grained accelerators, automatic parallelization, and testing. The automatic generation of accelerators is accomplished by an in-house developed software. Automatic

  2. Ice thickness measurements by Raman scattering

    E-Print Network [OSTI]

    Pershin, Sergey M; Klinkov, Vladimir K; Yulmetov, Renat N; Bunkin, Alexey F

    2014-01-01

    A compact Raman LIDAR system with a spectrograph was used for express ice thickness measurements. The difference between the Raman spectra of ice and liquid water is employed to locate the ice-water interface while elastic scattering was used for air-ice surface detection. This approach yields an error of only 2 mm for an 80-mm-thick ice sample, indicating that it is promising express noncontact thickness measurements technique in field experiments.

  3. Automatic continuity for Banach alge The basic question in automatic continuity

    E-Print Network [OSTI]

    Haase, Markus

    Automatic continuity for Banach alge­ bras The basic question in automatic continuity theory conditions on A and/or B ensure that the homomorphism ` is automatically continuous? A variation be a derivation. What algebraic conditions on A and/or E ensure that D is automatically continuous

  4. Automatic Structures Achim Blumensath and Erich Grdel

    E-Print Network [OSTI]

    Blumensath, Achim

    Automatic Structures Achim Blumensath and Erich Grädel Mathematische Grundlagen der Informatik RWTH for automatic and -automatic structures. These are, in general, infinite structures but they can be finitely of all first-order queries. Therefore, au- tomatic structures provide an interesting framework for ex

  5. Automatic Identification of Class Stereotypes Natalia Dragan

    E-Print Network [OSTI]

    Maletic, Jonathan I.

    Automatic Identification of Class Stereotypes Natalia Dragan Department of Computer Science Kent to automatically determine a class's stereotype. The stereotype is based on the frequency and distribution of method stereotypes in the class. Method stereotypes are automatically determined using a defined taxonomy

  6. Mix-Automatic Sequences Jorg Endrullis1

    E-Print Network [OSTI]

    Hendriks, Dimitri

    Mix-Automatic Sequences J¨org Endrullis1 , Clemens Grabmayer2 , and Dimitri Hendriks1 1 VU University Amsterdam, The Netherlands 2 Utrecht University, The Netherlands Abstract. Mix-automatic sequences form a proper extension of the class of automatic sequences, and arise from a generalization of finite

  7. Automatic Dirichlet series J.P. Allouche

    E-Print Network [OSTI]

    Allouche, Jean-Paul

    Automatic Dirichlet series J.­P. Allouche CNRS, LRI Bâ??atiment 490 F­91405 Orsay Cedex (France's theorem on the existence of logarithmic frequencies of symbols in automatic sequences is given, and certain infinite products are explicitly computed. Keywords: automatic sequences, Dirichlet series

  8. Automatic Detection and Classification of Sunspot Images

    E-Print Network [OSTI]

    Wolfe, Patrick J.

    Automatic Detection and Classification of Sunspot Images Thomas C. M. Lee tlee with Alex Young and the SaFeDe Solar Imaging Group JSM 2007 ­ p. 1/2 #12;Outline Title: Automatic Detection and Classification of Sunspot Images JSM 2007 ­ p. 2/2 #12;Outline Title: Automatic Detection and Classification

  9. Automatic Continuity from a personal perspective

    E-Print Network [OSTI]

    Jarosz, Krzysztof

    Automatic Continuity from a personal perspective Krzysztof Jarosz www.siue.edu/~kjarosz Southern Illinois University Edwardsville Krzysztof Jarosz (SIUE) Automatic Continuity 1 / 70 #12;Questions Automatic continuity: T : X ! Y is such that ........ (an algebraic condition) + T is continuous Reversed

  10. Automatic Processes Require no attentional resources

    E-Print Network [OSTI]

    Coulson, Seana

    1 Automatic Processes · Fast · Require no attentional resources · Outside of consciousness obligatory RED HOUSE+ Automatic Controlled · Without intention · Not subject to introspection · Few, if any% accuracy · Letter/Number distinction automatic: fast and done in parallel #12;3 Problems w

  11. AUTOMATIC MIXED PIXEL CLASSIFICATIO (AMPC): ANOMALY CLASSIFICATION

    E-Print Network [OSTI]

    Chang, Chein-I

    14 AUTOMATIC MIXED PIXEL CLASSIFICATIO (AMPC): ANOMALY CLASSIFICATION In Chapter 13, one type of AMPC, automatic target detection and classification (ATDC) is investigated, which does not require any, an automatic thresholding method and four target discrimination measures are introduced in this chapter

  12. AUTOMATIC IDENTIFICATION OF ENVIRONMENT HAPTIC PROPERTIES1

    E-Print Network [OSTI]

    Dupont, Pierre

    AUTOMATIC IDENTIFICATION OF ENVIRONMENT HAPTIC PROPERTIES1 Pierre E. Dupont Capt Timothy M sensory information collected during telemanipulation tasks in order to automatically identify properties, is considered. An algorithm is presented which automatically segments the data collected during the task, given

  13. Method of forming calthrate ice

    DOE Patents [OSTI]

    Hino, T.; Gorski, A.J.

    1985-09-30

    A method of forming clathrate ice in a supercooled water-based liquid contained in a vessel is disclosed. Initially, an oscillator device is located in the liquid in the vessel. The oscillator device is then oscillated ultransonically so that small crystals are formed in the liquid. Thes small crystals serve as seed crystals for ice formation in the liquid and thereby prevent supercooling of the liquid. Preferably, the oscillating device is controlled by a thermostat which initiates operation of the oscillator device when the temperature of the liquid is lowered to the freezing point. Thereafter, the operation of the oscillator device is terminated when ice is sensed in the liquid by an ice sensor.

  14. Method of forming clathrate ice

    DOE Patents [OSTI]

    Hino, Toshiyuki (Tokyo, JP); Gorski, Anthony J. (Lemont, IL)

    1987-01-01

    A method of forming clathrate ice in a supercooled water-based liquid contained in a vessel is disclosed. Initially, an oscillator device is located in the liquid in the vessel. The oscillator device is then oscillated ultrasonically so that small crystals are formed in the liquid. These small crystals serve as seed crystals for ice formation in the liquid and thereby prevent supercooling of the liquid. Preferably, the oscillating device is controlled by a thermostat which initiates operation of the oscillator device when the temperature of the liquid is lowered to the freezing point. Thereafter, the operation of the oscillator device is terminated when ice is sensed in the liquid by an ice sensor.

  15. Dynamically coupling the non-linear Stokes equations with the Shallow Ice Approximation in glaciology: Description and first applications of the ISCAL method

    E-Print Network [OSTI]

    Ahlkrona, Josefin; Kirchner, Nina; Zwinger, Thomas

    2015-01-01

    We propose and implement a new method, called the Ice Sheet Coupled Approximation Levels (ISCAL) method, for simulation of ice sheet flow in large domains under long time-intervals. The method couples the exact, full Stokes (FS) equations with the Shallow Ice Approximation (SIA). The part of the domain where SIA is applied is determined automatically and dynamically based on estimates of the modeling error. For a three dimensional model problem where the number of degrees of freedom is comparable to a real world application, ISCAL performs almost an order of magnitude faster with a low reduction in accuracy compared to a monolithic FS. Furthermore, ISCAL is shown to be able to detect rapid dynamic changes in the flow. Three different error estimations are applied and compared. Finally, ISCAL is applied to the Greenland Ice Sheet, proving ISCAL to be a potential valuable tool for the ice sheet modeling community.

  16. An experimental and theoretical study of the ice accretion process during artificial and natural icing conditions

    E-Print Network [OSTI]

    Kirby, Mark Samuel

    1986-01-01

    Real-time measurements of ice growth during artificial and natural icing conditions were conducted using an ultrasonic pulse-echo technique. This technique allows ice thickness to be measured with an accuracy of ?0.5 mm; ...

  17. Vapor deposition of water on graphitic surfaces: Formation of amorphous ice, bilayer ice, ice I, and liquid water

    SciTech Connect (OSTI)

    Lupi, Laura; Kastelowitz, Noah; Molinero, Valeria

    2014-11-14

    Carbonaceous surfaces are a major source of atmospheric particles and could play an important role in the formation of ice. Here we investigate through molecular simulations the stability, metastability, and molecular pathways of deposition of amorphous ice, bilayer ice, and ice I from water vapor on graphitic and atomless Lennard-Jones surfaces as a function of temperature. We find that bilayer ice is the most stable ice polymorph for small cluster sizes, nevertheless it can grow metastable well above its region of thermodynamic stability. In agreement with experiments, the simulations predict that on increasing temperature the outcome of water deposition is amorphous ice, bilayer ice, ice I, and liquid water. The deposition nucleation of bilayer ice and ice I is preceded by the formation of small liquid clusters, which have two wetting states: bilayer pancake-like (wetting) at small cluster size and droplet-like (non-wetting) at larger cluster size. The wetting state of liquid clusters determines which ice polymorph is nucleated: bilayer ice nucleates from wetting bilayer liquid clusters and ice I from non-wetting liquid clusters. The maximum temperature for nucleation of bilayer ice on flat surfaces, T{sub B}{sup max} is given by the maximum temperature for which liquid water clusters reach the equilibrium melting line of bilayer ice as wetting bilayer clusters. Increasing water-surface attraction stabilizes the pancake-like wetting state of liquid clusters leading to larger T{sub B}{sup max} for the flat non-hydrogen bonding surfaces of this study. The findings of this study should be of relevance for the understanding of ice formation by deposition mode on carbonaceous atmospheric particles, including soot.

  18. Automatic computation of transfer functions

    DOE Patents [OSTI]

    Atcitty, Stanley; Watson, Luke Dale

    2015-04-14

    Technologies pertaining to the automatic computation of transfer functions for a physical system are described herein. The physical system is one of an electrical system, a mechanical system, an electromechanical system, an electrochemical system, or an electromagnetic system. A netlist in the form of a matrix comprises data that is indicative of elements in the physical system, values for the elements in the physical system, and structure of the physical system. Transfer functions for the physical system are computed based upon the netlist.

  19. Electrothermal Icing Protection of Aerosurfaces Using Conductive Polymer Nanocomposites

    E-Print Network [OSTI]

    Buschhorn, Samuel T.

    Ice protection systems (IPS) are critical components for many aerospace flight vehicles, including commercial transports and unmanned aerial systems (UAS), and can include anti-icing, de-icing, ice sensing, etc. Here, an ...

  20. Coherent radar ice thickness measurements over the Greenland ice sheet

    E-Print Network [OSTI]

    Gogineni, S. Prasad; Tammana, Dilip; Braaten, David A.; Leuschen, C.; Legarsky, J.; Kanagaratnam, P.; Stiles, J.; Allen, C.; Jezek, K.; Akins, T. L.

    2001-12-27

    averaged over a distance covered by aircraft in 1 s (-130 m).) tt(X, g = -d) = Sice(t: T, x). (6) The value t = - can be interpreted as the time when S ice(t, x) represents the wave energy due to scattering specifically from depth d, as opposed... of the Greenland ice sheet produced by Mark Fahnestock (Department of Meteorology, University of Maryland, College Park) and Ron Kwok (Jet Propulsion Laboratory, California Institute of Technology, Pasa- dena). The helpful suggestions and comments of two...

  1. Rubber friction on ice and snow surfaces 

    E-Print Network [OSTI]

    Skouvaklis, Gerasimos

    2011-06-28

    The friction of rubber on ice and snow surfaces is complex. Deeper scientific understanding is important for optimising performance of tyres in winter. Rubber, ice and snow systems exhibit frictional behaviour which ...

  2. Heavy ion irradiation of crystalline water ice

    E-Print Network [OSTI]

    Dartois, E; Boduch, P; Brunetto, R; Chabot, M; Domaracka, A; Ding, J J; Kamalou, O; Lv, X Y; Rothard, H; da Silveira, E F; Thomas, J C

    2015-01-01

    Under cosmic irradiation, the interstellar water ice mantles evolve towards a compact amorphous state. Crystalline ice amorphisation was previously monitored mainly in the keV to hundreds of keV ion energies. We experimentally investigate heavy ion irradiation amorphisation of crystalline ice, at high energies closer to true cosmic rays, and explore the water-ice sputtering yield. We irradiated thin crystalline ice films with MeV to GeV swift ion beams, produced at the GANIL accelerator. The ice infrared spectral evolution as a function of fluence is monitored with in-situ infrared spectroscopy (induced amorphisation of the initial crystalline state into a compact amorphous phase). The crystalline ice amorphisation cross-section is measured in the high electronic stopping-power range for different temperatures. At large fluence, the ice sputtering is measured on the infrared spectra, and the fitted sputtering-yield dependence, combined with previous measurements, is quadratic over three decades of electronic ...

  3. Thermal Storage with Ice Harvesting Systems 

    E-Print Network [OSTI]

    Knebel, D. E.

    1986-01-01

    Application of Harvesting Ice Storage Systems. Thermal storage systems are becoming widely accepted techniques for utility load management. This paper discusses the principles of ice harvesting equipment and their application to the multi...

  4. The convective desalination of sea ice

    E-Print Network [OSTI]

    Rees Jones, David

    2014-07-01

    in the interstices of an ice matrix. My focus is on one of the processes by which the salt content of sea ice decreases, namely convective desalination, which is also often called gravity drainage by geophysicists. Modelling convective desalination requires...

  5. Electrical properties of saline ices and ice-silicate mixtures: geophysical and astrobiological consequences (Invited)

    E-Print Network [OSTI]

    Stillman, David E.

    MR22A-05 Electrical properties of saline ices and ice-silicate mixtures: geophysical) electrical-properties measurements of laboratory- produced saline ice, salt hydrates, and ice of interior properties, and habitability. The electrical properties of saline H2O are controlled by the binary

  6. Procuring Stationary Fuel Cells For CHP: A Guide for Federal Facility Decision Makers

    SciTech Connect (OSTI)

    Stinton, David P; McGervey, Joseph; Curran, Scott

    2011-11-01

    Federal agency leaders are expressing growing interest in using innovative fuel cell combined heat and power (CHP) technology at their sites, motivated by both executive branch sustainability targets and a desire to lead by example in the transition to a clean energy economy. Fuel cell CHP can deliver reliable electricity and heat with 70% to 85% efficiency. Implementing this technology can be a high efficiency, clean energy solution for agencies striving to meet ambitious sustainability requirements with limited budgets. Fuel cell CHP systems can use natural gas or renewable fuels, such as biogas. Procuring Stationary Fuel Cells for CHP: A Guide for Federal Facility Decision Makers presents an overview of the process for planning and implementing a fuel cell CHP project in a concise, step-by-step format. This guide is designed to help agency leaders turn their interest in fuel cell technology into successful installations. This guide concentrates on larger (100 kW and greater) fuel cell CHP systems and does not consider other fuel cell applications such as cars, forklifts, backup power supplies or small generators (<100 kW). Because fuel cell technologies are rapidly evolving and have high up front costs, their deployment poses unique challenges. The electrical and thermal output of the CHP system must be integrated with the building s energy systems. Innovative financing mechanisms allow agencies to make a make versus buy decision to maximize savings. This guide outlines methods that federal agencies may use to procure fuel cell CHP systems with little or no capital investment. Each agency and division, however, has its own set of procurement procedures. This guide was written as a starting point, and it defers to the reader s set of rules if differences exist. The fuel cell industry is maturing, and project developers are gaining experience in working with federal agencies. Technology improvements, cost reductions, and experienced project developers are making fuel cell projects easier to put into service. In this environment, federal decision makers can focus on being smart buyers of fuel cell energy instead of attempting to become experts in fuel cell technology. For agencies that want to pursue a fuel cell CHP this guide presents a four step process for a successful project. 1. Perform a preliminary screening of the energy needs energy costs and incentives. 2. Compare a detailed project plan. 3. Make a financing and contracting decision. 4. Execute the project plan including financing, installation, and operation. The simplest procurement method is designated funding for the outright purchase of the fuel cell CHP system, although this is usually not the most cost-effective option. This guide describes the following financing options: Power purchase agreement Energy savings performance contract Utility energy services contract Enhanced use lease Fuel cell CHP technology can help federal facility managers comply with agency objectives for reducing energy consumption and air pollution emissions. Fuel cells do not generate particulate pollutants, unburned hydrocarbons or the gases that produce acid rain. Fuel cells emit less carbon dioxide (CO2) than other, less efficient technologies and use of renewable fuels can make them carbon neutral. Fuel cell CHP technology can deliver reliable electricity and heat with high efficiency (70% to 85%) in a small physical footprint with little noise, making it a cost-effective option for federal facilities.

  7. Medical ice slurry production device

    DOE Patents [OSTI]

    Kasza, Kenneth E. (Palos Park, IL); Oras, John (Des Plaines, IL); Son, HyunJin (Naperville, IL)

    2008-06-24

    The present invention relates to an apparatus for producing sterile ice slurries for medical cooling applications. The apparatus is capable of producing highly loaded slurries suitable for delivery to targeted internal organs of a patient, such as the brain, heart, lungs, stomach, kidneys, pancreas, and others, through medical size diameter tubing. The ice slurry production apparatus includes a slurry production reservoir adapted to contain a volume of a saline solution. A flexible membrane crystallization surface is provided within the slurry production reservoir. The crystallization surface is chilled to a temperature below a freezing point of the saline solution within the reservoir such that ice particles form on the crystallization surface. A deflector in the form of a reciprocating member is provided for periodically distorting the crystallization surface and dislodging the ice particles which form on the crystallization surface. Using reservoir mixing the slurry is conditioned for easy pumping directly out of the production reservoir via medical tubing or delivery through other means such as squeeze bottles, squeeze bags, hypodermic syringes, manual hand delivery, and the like.

  8. Monkey Gamer: Automatic Profiling of Android Games

    E-Print Network [OSTI]

    1 Monkey Gamer: Automatic Profiling of Android Games Javier Mari´an Santos, Simin Nadjm and their interaction level. We present Monkey Gamer, a software to automatically play a large class of Android games and by human players, for three of the most popular Android games. We evaluate the performance of the Monkey

  9. Automatic Performance Optimization of the Discrete Fourier Transform

    E-Print Network [OSTI]

    Franchetti, Franz

    Automatic Performance Optimization of the Discrete Fourier Transform on Distributed Memory {franzf,pueschel}@ece.cmu.edu Abstract. This paper introduces a formal framework for automatically. Using a tagging mechanism and formula rewriting, we extend SPIRAL to automatically generate parallelized

  10. AUTOMATIC TONING OF THE LBL BEVALAC TRANSFER LINE

    E-Print Network [OSTI]

    Pines, H.

    2010-01-01

    1981 L DOCU Conference AUTOMATIC TUNING OF THE LBL BEVALAC7 4 0 5 - E N G - 4 8 AUTOMATIC TUNING OF THE LBL BEVALACand F. Selph? Summary Automatic tuning of a beam transport l

  11. Automatic Beam Path Analysis of Laser Wakefield Particle Acceleration Data

    E-Print Network [OSTI]

    Rubel, Oliver

    2010-01-01

    A. Hakim, R¨ bel et al. Automatic Beam Path Analysis of399, 1976. R¨ bel et al. Automatic Beam Path Analysis ofAutomatic Beam Path Analysis of Laser Wake?eld Particle

  12. Automatic Annotation Benjamin Arlyn Burnett, Larry Holder, Brian Thomas

    E-Print Network [OSTI]

    Collins, Gary S.

    Automatic Annotation Benjamin Arlyn Burnett, Larry Holder, Brian Thomas Electrical Engineering that would automatically provide annotations and tried to determine how beneficial it was. approach Our approach involved combining two previously developed technologies to create automatic annotation. · Naďve

  13. Automatic Structures --Recent Results and Open Frank Stephan

    E-Print Network [OSTI]

    Stephan, Frank

    Automatic Structures -- Recent Results and Open Questions Frank Stephan Department of Mathematics are languages recognised by finite automata; automatic structures are a generalisation of regular languages where one also uses automatic relations (which are relations recognised by synchronous finite automata

  14. Automatic Thread-Level Parallelization in the Chombo AMR Library

    E-Print Network [OSTI]

    Christen, Matthias

    2012-01-01

    Automatic Thread-Level Parallelization in the Chombo AMRused target language for an automatic migration of the largemacros a perfect target for automatic ?ne-grained loop-level

  15. Bedmap2: improved ice bed, surface and thickness datasets for Antarctica

    E-Print Network [OSTI]

    2013-01-01

    Surface configuration, ice thick- ness, volume and bedrockconstruction of the ice thick- ness grids. between flightof the physical ice thick- ness, rather than an “ice-

  16. Automatic Mechetronic Wheel Light Device

    DOE Patents [OSTI]

    Khan, Mohammed John Fitzgerald (Silver Spring, MD)

    2004-09-14

    A wheel lighting device for illuminating a wheel of a vehicle to increase safety and enhance aesthetics. The device produces the appearance of a "ring of light" on a vehicle's wheels as the vehicle moves. The "ring of light" can automatically change in color and/or brightness according to a vehicle's speed, acceleration, jerk, selection of transmission gears, and/or engine speed. The device provides auxiliary indicator lights by producing light in conjunction with a vehicle's turn signals, hazard lights, alarm systems, and etc. The device comprises a combination of mechanical and electronic components and can be placed on the outer or inner surface of a wheel or made integral to a wheel or wheel cover. The device can be configured for all vehicle types, and is electrically powered by a vehicle's electrical system and/or battery.

  17. Automatic insulation resistance testing apparatus

    DOE Patents [OSTI]

    Wyant, Francis J.; Nowlen, Steven P.; Luker, Spencer M.

    2005-06-14

    An apparatus and method for automatic measurement of insulation resistances of a multi-conductor cable. In one embodiment of the invention, the apparatus comprises a power supply source, an input measuring means, an output measuring means, a plurality of input relay controlled contacts, a plurality of output relay controlled contacts, a relay controller and a computer. In another embodiment of the invention the apparatus comprises a power supply source, an input measuring means, an output measuring means, an input switching unit, an output switching unit and a control unit/data logger. Embodiments of the apparatus of the invention may also incorporate cable fire testing means. The apparatus and methods of the present invention use either voltage or current for input and output measured variables.

  18. Automatic toilet seat lowering apparatus

    DOE Patents [OSTI]

    Guerty, Harold G. (Palm Beach Gardens, FL)

    1994-09-06

    A toilet seat lowering apparatus includes a housing defining an internal cavity for receiving water from the water supply line to the toilet holding tank. A descent delay assembly of the apparatus can include a stationary dam member and a rotating dam member for dividing the internal cavity into an inlet chamber and an outlet chamber and controlling the intake and evacuation of water in a delayed fashion. A descent initiator is activated when the internal cavity is filled with pressurized water and automatically begins the lowering of the toilet seat from its upright position, which lowering is also controlled by the descent delay assembly. In an alternative embodiment, the descent initiator and the descent delay assembly can be combined in a piston linked to the rotating dam member and provided with a water channel for creating a resisting pressure to the advancing piston and thereby slowing the associated descent of the toilet seat. A toilet seat lowering apparatus includes a housing defining an internal cavity for receiving water from the water supply line to the toilet holding tank. A descent delay assembly of the apparatus can include a stationary dam member and a rotating dam member for dividing the internal cavity into an inlet chamber and an outlet chamber and controlling the intake and evacuation of water in a delayed fashion. A descent initiator is activated when the internal cavity is filled with pressurized water and automatically begins the lowering of the toilet seat from its upright position, which lowering is also controlled by the descent delay assembly. In an alternative embodiment, the descent initiator and the descent delay assembly can be combined in a piston linked to the rotating dam member and provided with a water channel for creating a resisting pressure to the advancing piston and thereby slowing the associated descent of the toilet seat.

  19. DSOPilot project Automatic receipt of short circuiting indicators...

    Open Energy Info (EERE)

    DSOPilot project Automatic receipt of short circuiting indicators (Smart Grid Project) Jump to: navigation, search Project Name DSOPilot project Automatic receipt of short...

  20. Hydrogen ICE Vehicle Testing Activities

    SciTech Connect (OSTI)

    J. Francfort; D. Karner

    2006-04-01

    The Advanced Vehicle Testing Activity teamed with Electric Transportation Applications and Arizona Public Service to develop and monitor the operations of the APS Alternative Fuel (Hydrogen) Pilot Plant. The Pilot Plant provides 100% hydrogen, and hydrogen and compressed natural gas (H/CNG)-blended fuels for the evaluation of hydrogen and H/CNG internal combustion engine (ICE) vehicles in controlled and fleet testing environments. Since June 2002, twenty hydrogen and H/CNG vehicles have accumulated 300,000 test miles and 5,700 fueling events. The AVTA is part of the Department of Energy’s FreedomCAR and Vehicle Technologies Program. These testing activities are managed by the Idaho National Laboratory. This paper discusses the Pilot Plant design and monitoring, and hydrogen ICE vehicle testing methods and results.

  1. FAFCO Ice Storage test report

    SciTech Connect (OSTI)

    Stovall, T.K.

    1993-11-01

    The Ice Storage Test Facility (ISTF) is designed to test commercial ice storage systems. FAFCO provided a storage tank equipped with coils designed for use with a secondary fluid system. The FAFCO ice storage system was tested over a wide range of operating conditions. Measured system performance during charging showed the ability to freeze the tank fully, storing from 150 to 200 ton-h. However, the charging rate showed significant variations during the latter portion of the charge cycle. During discharge cycles, the storage tank outlet temperature was strongly affected by the discharge rate and tank state of charge. The discharge capacity was dependent upon both the selected discharge rate and maximum allowable tank outlet temperature. Based on these tests, storage tank selection must depend on both charge and discharge conditions. This report describes FAFCO system performance fully under both charging and discharging conditions. While the test results reported here are accurate for the prototype 1990 FAFCO Model 200, currently available FAFCO models incorporate significant design enhancements beyond the Model 200. At least one major modification was instituted as a direct result of the ISTF tests. Such design improvements were one of EPRI`s primary goals in founding the ISTF.

  2. CMU/ICES Technical Report #01-27-98 Automatic Robustness Testing of

    E-Print Network [OSTI]

    Koopman, Philip

    was supported under DARPA contract DABT63-96-C-0064 (the Ballista project) and ONR contract N00014 be simple, automated, and fast. It was with these goals in mind that the Ballista approach to robustness

  3. Automatic restart of complex irrigation systems

    SciTech Connect (OSTI)

    Werner, H.D.; Alcock, R.; DeBoer, D.W.; Olson, D.I. (South Dakota State Univ., Brookings, SD (United States). Dept. of Agricultural Engineering)

    1992-05-01

    Automatic restart of irrigation systems under load management has the potential to maximize pumping time during off-peak hours. Existing automation technology ranges from time delay relays to more sophisticated control using computers together with weather data to optimize irrigation practices. Centrifugal pumps and water hammer concerns prevent automatic restart of common but often complex irrigation systems in South Dakota. The irrigator must manually prime the pump and control water hammer during pipeline pressurization. Methods to prime centrifugal pumps and control water hammer facilitate automatic restart after load management is released. Seven priming methods and three water hammer control methods were investigated. A sump pump and small vacuum pump were used to test two automatic prime and restart systems in the laboratory. A variable frequency phase converter was also used to automatically control water hammer during pipeline pressurization. Economical methods to safely prime and restart centrifugal pumps were discussed. The water hammer control methods safely pressurize the pipeline but require a higher initial investment. The automatic restart systems can be used to safely restart centrifugal pumps and control water hammer after load management is released. Based upon laboratory research and a technical review of available restart components, a computer software program was developed. The program assists customers in evaluating various restart options for automatic restarting of electric irrigation pumps. For further information on the software program, contact the South Dakota State University, Department of Agricultural Engineering.

  4. Zebra Crossing Spotter: Automatic Population of Spatial Databases for Increased Safety of Blind Travelers

    E-Print Network [OSTI]

    Ahmetovic, Dragan; Manduchi, Roberto; Coughlan, James; Mascetti, Sergio

    2015-01-01

    Zebra Crossing Spotter: Automatic Population of Spatialdatasets. While fully automatic, our algorithm could also be

  5. Geol 795 Paleoceanography Ice Sheet Dynamics and Climate Change

    E-Print Network [OSTI]

    Barranco, Joseph

    Geol 795 ­ Paleoceanography Ice Sheet Dynamics and Climate Change Class Meetings: Tuesday 9 of articles related ice sheet dynamics and the role of ice sheets in past, present, and future climate change ice sheet dynamics and the role of ice sheets in climate change. We will discuss effective ways

  6. IceT users' guide and reference.

    SciTech Connect (OSTI)

    Moreland, Kenneth D.

    2011-01-01

    The Image Composition Engine for Tiles (IceT) is a high-performance sort-last parallel rendering library. In addition to providing accelerated rendering for a standard display, IceT provides the unique ability to generate images for tiled displays. The overall resolution of the display may be several times larger than any viewport that may be rendered by a single machine. This document is an overview of the user interface to IceT.

  7. In situ cosmogenic radiocarbon production and 2-D ice flow line modeling for an Antarctic blue ice area

    E-Print Network [OSTI]

    Severinghaus, Jeffrey P.

    In situ cosmogenic radiocarbon production and 2-D ice flow line modeling for an Antarctic blue ice; accepted 12 April 2012; published 24 May 2012. [1] Radiocarbon measurements at ice margin sites and blue and 2-D ice flow line modeling for an Antarctic blue ice area, J. Geophys. Res., 117, F02029, doi:10

  8. BISICLES Captures Details of Retreating Antarctic Ice

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

    software framework, and linked them to the existing Community Ice Sheet Model code (CISM). With AMR, researchers can now model dynamic points of interest at extremely high...

  9. The Next ICE Age | Department of Energy

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

    More Documents & Publications The Next ICE Age Fuel Modification t Facilitate Future Combustion Regimes? Optimization of Advanced Diesel Engine Combustion Strategies...

  10. The Stability of the Greenland Ice Sheet

    E-Print Network [OSTI]

    Biasutti, Michela

    , distribution and seasonality · Solid Earth: · Geothermal heatflux Abrupt Climate Change Studies Symposium 21 Rebound (GIA) GPS stations measure vertical deformation of solid Earth as ice

  11. Relationships between Water Wettability and Ice Adhesion

    E-Print Network [OSTI]

    Meuler, Adam J.

    Ice formation and accretion may hinder the operation of many systems critical to national infrastructure, including airplanes, power lines, windmills, ships, and telecommunications equipment. Yet despite the pervasiveness ...

  12. Viscosity of interfacial water regulates ice nucleation

    SciTech Connect (OSTI)

    Li, Kaiyong; Chen, Jing; Zhang, Qiaolan; Zhang, Yifan; University of Chinese Academy of Sciences, Beijing 100049 ; Xu, Shun; Zhou, Xin; Cui, Dapeng; Wang, Jianjun Song, Yanlin

    2014-03-10

    Ice formation on solid surfaces is an important phenomenon in many fields, such as cloud formation and atmospheric icing, and a key factor for applications in preventing freezing. Here, we report temperature-dependent nucleation rates of ice for hydrophilic and hydrophobic surfaces. The results show that hydrophilic surface presents a lower ice nucleation rate. We develop a strategy to extract the thermodynamic parameters, J{sub 0} and ?, in the context of classical nucleation theory. From the extracted J{sub 0} and ?, we reveal the dominant role played by interfacial water. The results provide an insight into freezing mechanism on solid surfaces.

  13. U.S. DOE's Response to the Fukushima Daiichi Reactor Accident: Answers and Data Products for Decision Makers

    SciTech Connect (OSTI)

    Reed, A. L.

    2012-05-01

    The Fukushima Daiichi response posed a plethora of scientific questions to the U.S. Department of Energy’s (DOE) radiological emergency response community. As concerns arose for decision makers, the DOE leveraged a community of scientists well-versed in the tenants of emergency situations to provide answers to time-sensitive questions from different parts of the world. A chronology of the scientific Q and A that occurred is presented along with descriptions of the challenges that were faced and how new methods were employed throughout the course of the response.

  14. Sustainability Internship Turtle Mountain LLC, the makers of the SO Delicious Dairy Free (SDDF) brand of products is looking for a Sustainability

    E-Print Network [OSTI]

    Grünwald, Niklaus J.

    Sustainability Internship Turtle Mountain LLC, the makers of the SO Delicious Dairy Free (SDDF) brand of products is looking for a Sustainability the opportunity to gain hands-on experience and learn lessons on two sustainability focused

  15. Development of tools for automatic generation of PLC code

    E-Print Network [OSTI]

    Koutli, Maria; Rochez, Jacques

    This Master thesis was performed at CERN and more specifically in the EN-ICE-PLC section. The Thesis describes the integration of two PLC platforms, that are based on CODESYS development tool, to the CERN defined industrial framework, UNICOS. CODESYS is a development tool for PLC programming, based on IEC 61131-3 standard, and is adopted by many PLC manufacturers. The two PLC development environments are, the SoMachine from Schneider and the TwinCAT from Beckhoff. The two CODESYS compatible PLCs, should be controlled by the SCADA system of Siemens, WinCC OA. The framework includes a library of Function Blocks (objects) for the PLC programs and a software for automatic generation of the PLC code based on this library, called UAB. The integration aimed to give a solution that is shared by both PLC platforms and was based on the PLCOpen XML scheme. The developed tools were demonstrated by creating a control application for both PLC environments and testing of the behavior of the code of the library.

  16. Mathematics Of Ice To Aid Global Warming Forecasts Mathematics Of Ice To Aid Global Warming Forecasts

    E-Print Network [OSTI]

    Golden, Kenneth M.

    Mathematics Of Ice To Aid Global Warming Forecasts Mathematics Of Ice To Aid Global Warming forecasts of how global warming will affect polar icepacks. See also: Earth & Climate q Global Warming q the effects of climate warming, and its presence greatly reduces solar heating of the polar oceans." "Sea ice

  17. Relationship between ice water content and equivalent radar reflectivity for clouds consisting of nonspherical ice particles

    E-Print Network [OSTI]

    Baum, Bryan A.

    Relationship between ice water content and equivalent radar reflectivity for clouds consisting investigates the relationship between ice water content (IWC) and equivalent radar reflectivity (Ze) at 94 GHz. Baum, and A. J. Heymsfield (2008), Relationship between ice water content and equivalent radar

  18. A New Approach for Exploring Ice Sheets and Sub-Ice Geology

    E-Print Network [OSTI]

    Kristoffersen, Yngve

    A New Approach for Exploring Ice Sheets and Sub-Ice Geology Active seismic measurements were geology driven by ice flow [Smith et al., 2007] and the long record of seismic exploration of subglacial sur- veys because of the considerable logistical effort necessary for seismic data acquisition

  19. Satellite SAR Remote Sensing of Great Lakes Ice Cover, Part 2. Ice Classification and Mapping

    E-Print Network [OSTI]

    (look-up table) for different ice types. The library is used in the computer classifica- tion (freshwater) ice types using the Jet Propulsion Laboratory C-band scatterometer, together with surface data set, composed of over 20 variations of different ice types measured at incident angles from 0

  20. Mobi : automatic customization of the mobile Web

    E-Print Network [OSTI]

    Chan, Richard W., M. Eng. Massachusetts Institute of Technology

    2010-01-01

    Mobi is a system that automatically rewrites web pages into formats optimized for web browsing on mobile devices. The system estimates heuristically which parts of a web page's content users are most likely interested in, ...

  1. Pronunciation learning for automatic speech recognition

    E-Print Network [OSTI]

    Badr, Ibrahim

    2011-01-01

    In many ways, the lexicon remains the Achilles heel of modern automatic speech recognizers (ASRs). Unlike stochastic acoustic and language models that learn the values of their parameters from training data, the baseform ...

  2. Automatic Control of Freeboard and Turbine Operation

    E-Print Network [OSTI]

    Automatic Control of Freeboard and Turbine Operation ­ Wave Dragon, Nissum Bredning Project: Sea of Freeboard and Turbine Operation Wave Dragon, Nissum Bredning by Jens Peter Kofoed & Peter Frigaard, Aalborg.........................................................................................................................10 TURBINE PERFORMANCE DATA

  3. Automatic tuning of continuous-time filters 

    E-Print Network [OSTI]

    Sumesaglam, Taner

    2004-11-15

    Integrated high-Q continuous-time filters require adaptive tuning circuits that will correct the filter parameters such as center frequency and quality factor (Q). Three different automatic tuning techniques are introduced. In all of the proposed...

  4. Oracle Analysis of Sparse Automatic Music Transcription

    E-Print Network [OSTI]

    Plumbley, Mark

    Oracle Analysis of Sparse Automatic Music Transcription Ken O'Hanlon , Hidehisa Nagano , and Mark {keno,nagano,Mark.Plumbley}@eecs.qmul.ac.uk Abstract. We have previously proposed a structured sparse

  5. Automatic Sacts and inverse semigroup presentations Erzsebet Rita Dombi

    E-Print Network [OSTI]

    St Andrews, University of

    Automatic S­acts and inverse semigroup presentations Erzsâ??ebet Rita Dombi Ph.D. Thesis University.3 Automatic groups and semigroups . . . . . . . . . . . . . . . . . . . . . . . 14 3 Automatic semigroup acts.2 SchË?utzenberger automatic regular semigroups . . . . . . . . . . . . . . . . . 25 3.3 Examples

  6. AUTOMATIC MIXED PIXEL CLASSIFICATION (AMPC): UNSUPERVISED MIXED PIXEL CLASSIFICATION

    E-Print Network [OSTI]

    Chang, Chein-I

    13 AUTOMATIC MIXED PIXEL CLASSIFICATION (AMPC): UNSUPERVISED MIXED PIXEL CLASSIFICATION The automatic mixed pixel classification (AMPC) considered in this chapter is fully computer automated and can be implemented to automatically detect and classify targets with no human intervention. Like the automatic

  7. AUTOMATIC QUOTIENTS OF FREE GROUPS ROBERT H. GILMAN

    E-Print Network [OSTI]

    Gilman, Robert

    AUTOMATIC QUOTIENTS OF FREE GROUPS ROBERT H. GILMAN Abstract. Automatic groups admitting prefix closed automatic structures with uniqueness are characterized as the quotients of free groups by normal. Introduction It is an open problem whether or not every synchronously automatic group admits a prefix closed

  8. Automatic presentations for semigroups Alan J. Cain a

    E-Print Network [OSTI]

    St Andrews, University of

    Automatic presentations for semigroups Alan J. Cain a , Graham Oliver b , Nik Ruskuc a , Richard M-presentable semigroups and automatic semigroups. Key words: Automatic presentation, FA-presentable, cancellative semigroup, virtually abelian group 1991 MSC: 20F10, 20M35, 03D45 1 Introduction Automatic presentations were

  9. ARKTOS: An intelligent system for SAR sea ice image classification

    E-Print Network [OSTI]

    Soh, L. K.; Tsatsoulis, Costas; Gineris, D.; Bertoia, C.

    2004-01-01

    We present an intelligent system for satellite sea ice image analysis named Advanced Reasoning using Knowledge for T ping Of Sea ice (ARKTOS). ARKTOS performs fully automated analysis of synthetic aperture radar (SAR) sea ice images by mimicking...

  10. Automatic safety rod for reactors. [LMFBR

    DOE Patents [OSTI]

    Germer, J.H.

    1982-03-23

    An automatic safety rod for a nuclear reactor containing neutron absorbing material and designed to be inserted into a reactor core after a loss-of-flow. Actuation is based upon either a sudden decrease in core pressure drop or the pressure drop decreases below a predetermined minimum value. The automatic control rod includes a pressure regulating device whereby a controlled decrease in operating pressure due to reduced coolant flow does not cause the rod to drop into the core.

  11. Communication with U.S. federal decision makers : a primer with notes on the use of computer models as a means of communication.

    SciTech Connect (OSTI)

    Webb, Erik Karl; Tidwell, Vincent Carroll

    2009-10-01

    This document outlines ways to more effectively communicate with U.S. Federal decision makers by outlining the structure, authority, and motivations of various Federal groups, how to find the trusted advisors, and how to structure communication. All three branches of Federal governments have decision makers engaged in resolving major policy issues. The Legislative Branch (Congress) negotiates the authority and the resources that can be used by the Executive Branch. The Executive Branch has some latitude in implementation and prioritizing resources. The Judicial Branch resolves disputes. The goal of all decision makers is to choose and implement the option that best fits the needs and wants of the community. However, understanding the risk of technical, political and/or financial infeasibility and possible unintended consequences is extremely difficult. Primarily, decision makers are supported in their deliberations by trusted advisors who engage in the analysis of options as well as the day-to-day tasks associated with multi-party negotiations. In the best case, the trusted advisors use many sources of information to inform the process including the opinion of experts and if possible predictive analysis from which they can evaluate the projected consequences of their decisions. The paper covers the following: (1) Understanding Executive and Legislative decision makers - What can these decision makers do? (2) Finding the target audience - Who are the internal and external trusted advisors? (3) Packaging the message - How do we parse and integrate information, and how do we use computer simulation or models in policy communication?

  12. A direct evidence of vibrationally delocalized response at ice surface

    SciTech Connect (OSTI)

    Ishiyama, Tatsuya; Morita, Akihiro

    2014-11-14

    Surface-specific vibrational spectroscopic responses at isotope diluted ice and amorphous ice are investigated by molecular dynamics (MD) simulations combined with quantum mechanics/molecular mechanics calculations. The intense response specific to the ordinary crystal ice surface is predicted to be significantly suppressed in the isotopically diluted and amorphous ices, demonstrating the vibrational delocalization at the ordinary ice surface. The collective vibration at the ice surface is also analyzed with varying temperature by the MD simulation.

  13. ARM - TWP-ICE Maps

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Comments?govInstrumentsnoaacrnBarrow, AlaskaManus Site-Inactive TWP Related Links Facilities andTWP-ICE Maps

  14. IceCube at 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 WebQuantity ofkandz-cm11 Outreach Home Room NewsInformation CurrentHenry Bellamy, Ph.D.FoodHydropower,Principal InvestigatorsIceCube at

  15. Results from IceCube/IceTop Ooty, 17/12/12 Tom Gaisser for the IceCube Collab. 1

    E-Print Network [OSTI]

    Gaisser, Thomas K.

    , 17/12/12 Tom Gaisser for the IceCube Collab. 3 #12;Mumbai, 11/12/12 Tom;Mumbai, 11/12/12 Tom Gaisser for the IceCube Collab. 5 DetecMng neutrinos in H of interac,ons IceTop #12;Mumbai, 11/12/12 Tom Gaisser for the IceCube Collab. 6

  16. AUTOMATIC EMOTION REGULATION 1 Mauss, I. B., Bunge, S. A., & Gross, J. J. (2007). Automatic emotion regulation. Social and

    E-Print Network [OSTI]

    Gross, James J.

    2007-01-01

    AUTOMATIC EMOTION REGULATION 1 Mauss, I. B., Bunge, S. A., & Gross, J. J. (2007). Automatic emotion://www.blackwell-compass.com/subject/socialpsychology/ Automatic Emotion Regulation Iris B. Mauss1 , Silvia A. Bunge2 , & James J. Gross3 1 University of Denver 2 University of California, Berkeley 3 Stanford University #12;AUTOMATIC EMOTION REGULATION 2 Abstract How do

  17. Radar attenuation and temperature within the Greenland Ice Sheet

    E-Print Network [OSTI]

    2015-01-01

    on obliquely propagating radio waves, IEEE Trans. Geosci.dielectric attenuation of radio waves through ice is alsoattenuation of radio waves through ice is also temperature

  18. ICR-ICE Standard Operating Procedures (Update Sept 2013) | Department...

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

    ICR-ICE Standard Operating Procedures (Update Sept 2013) ICR-ICE Standard Operating Procedures (Update Sept 2013) ICRICE SOPSep 2013Final.pdf More Documents & Publications...

  19. Rapid development of an ice sheet climate application using the...

    Office of Scientific and Technical Information (OSTI)

    Technical Report: Rapid development of an ice sheet climate application using the components-based approach Citation Details In-Document Search Title: Rapid development of an ice...

  20. Complex systems influence melting of Greenland ice sheet

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

    Complex systems influence melting of Greenland ice sheet Complex systems influence melting of Greenland ice sheet International research team's field work shows that, well, things...

  1. Cosmic-ray results from IceCube/ Mumbai, 12/12/12 Tom Gaisser for the IceCube Collab. 1

    E-Print Network [OSTI]

    Gaisser, Thomas K.

    Cosmic-ray results from IceCube/ IceTop Mumbai, 12/12/12 Tom Gaisser for the IceCube Collab. 1 #12;Mumbai, 12/12/12 Tom Gaisser for the IceCube Collab. 2 events ­ IceTop/deep IceCube Mumbai, 12/12/12 Tom Gaisser for the IceCube Collab

  2. Passive ice freezing-releasing heat pipe

    DOE Patents [OSTI]

    Gorski, Anthony J. (Lemont, IL); Schertz, William W. (Batavia, IL)

    1982-01-01

    A heat pipe device has been developed which permits completely passive ice formation and periodic release of ice without requiring the ambient temperature to rise above the melting point of water. This passive design enables the maximum amount of cooling capacity to be stored in the tank.

  3. Ice Cover on the Great Lakes NATIONALOCEANIC

    E-Print Network [OSTI]

    : In the shallow waters where whitefish spawn, ice cover protects their eggs from destructive wind and wave action://coastwatch.glerl.noaa.gov/glsea/cur/glsea_cur.png #12;GLERL Research Forecast capability The capability to forecast and predict ice cover is important for recreational safety and rescue efforts as well as for navigation, weather forecasting, adapting to lake level

  4. Parameterizing Size Distribution in Ice Clouds

    SciTech Connect (OSTI)

    DeSlover, Daniel; Mitchell, David L.

    2009-09-25

    PARAMETERIZING SIZE DISTRIBUTIONS IN ICE CLOUDS David L. Mitchell and Daniel H. DeSlover ABSTRACT An outstanding problem that contributes considerable uncertainty to Global Climate Model (GCM) predictions of future climate is the characterization of ice particle sizes in cirrus clouds. Recent parameterizations of ice cloud effective diameter differ by a factor of three, which, for overcast conditions, often translate to changes in outgoing longwave radiation (OLR) of 55 W m-2 or more. Much of this uncertainty in cirrus particle sizes is related to the problem of ice particle shattering during in situ sampling of the ice particle size distribution (PSD). Ice particles often shatter into many smaller ice fragments upon collision with the rim of the probe inlet tube. These small ice artifacts are counted as real ice crystals, resulting in anomalously high concentrations of small ice crystals (D < 100 µm) and underestimates of the mean and effective size of the PSD. Half of the cirrus cloud optical depth calculated from these in situ measurements can be due to this shattering phenomenon. Another challenge is the determination of ice and liquid water amounts in mixed phase clouds. Mixed phase clouds in the Arctic contain mostly liquid water, and the presence of ice is important for determining their lifecycle. Colder high clouds between -20 and -36 oC may also be mixed phase but in this case their condensate is mostly ice with low levels of liquid water. Rather than affecting their lifecycle, the presence of liquid dramatically affects the cloud optical properties, which affects cloud-climate feedback processes in GCMs. This project has made advancements in solving both of these problems. Regarding the first problem, PSD in ice clouds are uncertain due to the inability to reliably measure the concentrations of the smallest crystals (D < 100 µm), known as the “small mode”. Rather than using in situ probe measurements aboard aircraft, we employed a treatment of ice cloud optical properties formulated in terms of PSD parameters in combination with remote measurements of thermal radiances to characterize the small mode. This is possible since the absorption efficiency (Qabs) of small mode crystals is larger at 12 µm wavelength relative to 11 µm wavelength due to the process of wave resonance or photon tunneling more active at 12 µm. This makes the 12/11 µm absorption optical depth ratio (or equivalently the 12/11 µm Qabs ratio) a means for detecting the relative concentration of small ice particles in cirrus. Using this principle, this project tested and developed PSD schemes that can help characterize cirrus clouds at each of the three ARM sites: SGP, NSA and TWP. This was the main effort of this project. These PSD schemes and ice sedimentation velocities predicted from them have been used to test the new cirrus microphysics parameterization in the GCM known as the Community Climate Systems Model (CCSM) as part of an ongoing collaboration with NCAR. Regarding the second problem, we developed and did preliminary testing on a passive thermal method for retrieving the total water path (TWP) of Arctic mixed phase clouds where TWPs are often in the range of 20 to 130 g m-2 (difficult for microwave radiometers to accurately measure). We also developed a new radar method for retrieving the cloud ice water content (IWC), which can be vertically integrated to yield the ice water path (IWP). These techniques were combined to determine the IWP and liquid water path (LWP) in Arctic clouds, and hence the fraction of ice and liquid water. We have tested this approach using a case study from the ARM field campaign called M-PACE (Mixed-Phase Arctic Cloud Experiment). This research led to a new satellite remote sensing method that appears promising for detecting low levels of liquid water in high clouds typically between -20 and -36 oC. We hope to develop this method in future research.

  5. Marcus Venzke: Automatic Validation of Web Services 1 Automatic Validation of Web Services

    E-Print Network [OSTI]

    Turau, Volker

    Marcus Venzke: Automatic Validation of Web Services 1 Automatic Validation of Web Services Marcus validation" for web services. It allows to check if occurring message flows conform to the interface's speci a system's dependability. 1 Introduction Web services allow interoperation of loosely coupled components

  6. Automatic detection of patient identification and positioning errors in radiotherapy treatment using 3D setup images

    E-Print Network [OSTI]

    Jani, Shyam

    2015-01-01

    A videogrammetric system for automatic patient setup, fastwith an efficient automatic patient safety system. Journalmutual information for automatic multimodality image fusion

  7. Automatic sensory discrimination impairment in prodromal and recent-onset schizophrenia

    E-Print Network [OSTI]

    Jahchan, Carol

    2010-01-01

    auditory P3a reflecting an automatic process: elicitationElectrophysiological indices of automatic and controlledOF THE DISSERTATION Automatic Sensory Discrimination

  8. Automatically processed alpha-track radon monitor

    DOE Patents [OSTI]

    Langner, G.H. Jr.

    1993-01-12

    An automatically processed alpha-track radon monitor is provided which includes a housing having an aperture allowing radon entry, and a filter that excludes the entry of radon daughters into the housing. A flexible track registration material is located within the housing that records alpha-particle emissions from the decay of radon and radon daughters inside the housing. The flexible track registration material is capable of being spliced such that the registration material from a plurality of monitors can be spliced into a single strip to facilitate automatic processing of the registration material from the plurality of monitors. A process for the automatic counting of radon registered by a radon monitor is also provided.

  9. Automatically processed alpha-track radon monitor

    DOE Patents [OSTI]

    Langner, Jr., G. Harold (Mack, CO)

    1993-01-01

    An automatically processed alpha-track radon monitor is provided which includes a housing having an aperture allowing radon entry, and a filter that excludes the entry of radon daughters into the housing. A flexible track registration material is located within the housing that records alpha-particle emissions from the decay of radon and radon daughters inside the housing. The flexible track registration material is capable of being spliced such that the registration material from a plurality of monitors can be spliced into a single strip to facilitate automatic processing of the registration material from the plurality of monitors. A process for the automatic counting of radon registered by a radon monitor is also provided.

  10. Radiostratigraphy and age structure of the Greenland Ice Sheet

    E-Print Network [OSTI]

    2015-01-01

    is 3.15, equivalent to a radio-wave velocity in ice of 168.9to be vertical) that a radio wave travels through ice during?t is where v ice is the radio-wave velocity in ice, ?z Ľ v

  11. Crystalline water ice on the Kuiper belt object (50000) Quaoar

    E-Print Network [OSTI]

    Jewitt, David C.

    .............................................................. Crystalline water ice on the Kuiper the presence of crystalline water ice and ammonia hydrate. Crystallinity indicates that the ice has been heated to at least 110 K. Both ammonia hydrate and crystalline water ice should be destroyed by energetic particle

  12. Molecular simulations of heterogeneous ice nucleation. I. Controlling ice nucleation through surface hydrophilicity

    E-Print Network [OSTI]

    Stephen J. Cox; Shawn M. Kathmann; Ben Slater; Angelos Michaelides

    2015-05-29

    Ice formation is one of the most common and important processes on earth and almost always occurs at the surface of a material. A basic understanding of how the physicochemical properties of a material's surface affect its ability to form ice has remained elusive. Here, we use molecular dynamics simulations to directly probe heterogeneous ice nucleation at a hexagonal surface of a nanoparticle of varying hydrophilicity. Surprisingly, we find that structurally identical surfaces can both inhibit and promote ice formation and analogous to a chemical catalyst, it is found that an optimal interaction between the surface and the water exists for promoting ice nucleation. We use our microscopic understanding of the mechanism to design a modified surface in silico with enhanced ice nucleating ability.

  13. Nonlinear system identification employing automatic differentiation

    E-Print Network [OSTI]

    Jan Schumann-Bischoff; Stefan Luther; Ulrich Parlitz

    2015-07-09

    An optimization based state and parameter estimation method is presented where the required Jacobian matrix of the cost function is computed via automatic differentiation. Automatic differentiation evaluates the programming code of the cost function and provides exact values of the derivatives. In contrast to numerical differentiation it is not suffering from approximation errors and compared to symbolic differentiation it is more convenient to use, because no closed analytic expressions are required. Furthermore, we demonstrate how to generalize the parameter estimation scheme to delay differential equations, where estimating the delay time requires attention.

  14. A Smoothed Particle Hydrodynamics Model for Ice Sheet and Ice Shelf Dynamics

    SciTech Connect (OSTI)

    Pan, Wenxiao; Tartakovsky, Alexandre M.; Monaghan, Joseph J.

    2012-02-08

    Mathematical modeling of ice sheets is complicated by the non-linearity of the governing equations and boundary conditions. Standard grid-based methods require complex front tracking techniques and have limited capability to handle large material deformations and abrupt changes in bottom topography. As a consequence, numerical methods are usually restricted to shallow ice sheet and ice shelf approximations. We propose a new smoothed particle hydrodynamics (SPH) model for coupled ice sheet and ice shelf dynamics. SPH is a fully Lagrangian particle method. It is highly scalable and its Lagrangian nature and meshless discretization are well suited to the simulation of free surface flows, large material deformation, and material fragmentation. In this paper SPH is used to study ice sheet/ice shelf behavior, and the dynamics of the grounding line. The steady state position of the grounding line obtained from the SPH simulations is in good agreement with laboratory observations for a wide range of simulated bedrock slopes, and density ratios similar to those of ice and sea water. The numerical accuracy of the SPH algorithm is further verified by simulating the plane shear flow of two immiscible fluids and the propagation of a highly viscous blob of fluid along a horizontal surface. In the experiment, the ice was represented with a viscous newtonian fluid. For consistency, in the described SPH model the ice is also modeled as a viscous newtonian fluid. Typically, ice sheets are modeled as a non-Newtonian fluid, accounting for the changes in the mechanical properties of ice. Implementation of a non-Newtonian rheology in the SPH model is the subject of our ongoing research.

  15. Smoothed particle hydrodynamics Non-Newtonian model for ice-sheet and ice-shelf dynamics

    SciTech Connect (OSTI)

    Pan, Wenxiao; Tartakovsky, Alexandre M.; Monaghan, Joseph J.

    2013-06-01

    Mathematical modeling of ice sheets is complicated by the non-linearity of the governing equations and boundary conditions. Standard grid-based methods require complex front tracking techniques and have limited capability to handle large material deformations and abrupt changes in bottom topography. As a consequence, numerical methods are usually restricted to shallow ice sheet and ice shelf approximations. We propose a new smoothed particle hydrodynamics (SPH) non-Newtonian model for coupled ice sheet and ice shelf dynamics. SPH, a fully Lagrangian particle method, is highly scalable and its Lagrangian nature and meshless discretization are well suited to the simulation of free surface ?ows, large material deformation, and material fragmentation. In this paper, SPH is used to study 3D ice sheet/ice shelf behavior, and the dynamics of the grounding line. The steady state position of the grounding line obtained from SPH simulations is in good agreement with laboratory observations for a wide range of simulated bedrock slopes, and density ratios, similar to those of ice and sea water. The numerical accuracy of the SPH algorithm is veri?ed by simulating Poiseuille ?ow, plane shear ?ow with free surface and the propagation of a blob of ice along a horizontal surface. In the laboratory experiment, the ice was represented with a viscous Newtonian ?uid. In the present work, however, the ice is modeled as both viscous Newtonian ?uid and non-Newtonian ?uid, such that the e?ect of non-Newtonian rheology on the dynamics of grounding line was examined. The non-Newtonian constitutive relation is prescribed to be Glen’s law for the creep of polycrystalline ice. A V-shaped bedrock ramp is further introduced to model the real geometry of bedrock slope.

  16. Do blue-ice moraines in the Heritage Range show the West Antarctic ice sheet survived the last interglacial?

    E-Print Network [OSTI]

    Do blue-ice moraines in the Heritage Range show the West Antarctic ice sheet survived the last in revised form 10 January 2011 Accepted 28 January 2011 Available online xxxx Keywords: Blue-ice moraine cosmogenic isotope data on blue-ice moraines in the Heritage Range, West Antarctica. The age of the moraines

  17. Inter-annual sea-ice dynamics and micro-algal biomass in winter pack ice of Marguerite Bay, Antarctica

    E-Print Network [OSTI]

    Stewart, Frank

    in this region (Stammerjohn et al., 2003; Stammerjohn and Smith, 1996). Changes in mesoscale ice dynamics

  18. Processes driving sea ice variability in the Bering Sea in an eddying ocean/sea ice model: Mean seasonal cycle

    E-Print Network [OSTI]

    Eisenman, Ian

    the southern ice edge, especially on the western side. The sea ice force balance analysis shows that sea ice air from northerly winds and ice motion away from the coast. South of St Lawrence Island, winds drive is important both climatically and economically. Understanding the processes that control the temporal

  19. Communication: On the stability of ice 0, ice i, and I{sub h}

    SciTech Connect (OSTI)

    Quigley, D.; Alfč, D.; Slater, B.

    2014-10-28

    Using ab initio methods, we examine the stability of ice 0, a recently proposed tetragonal form of ice implicated in the homogeneous freezing of water [J. Russo, F. Romano, and H. Tanaka, Nat. Mater. 13, 670 (2014)]. Vibrational frequencies are computed across the complete Brillouin Zone using Density Functional Theory (DFT), to confirm mechanical stability and quantify the free energy of ice 0 relative to ice I{sub h}. The robustness of this result is tested via dispersion corrected semi-local and hybrid DFT, and Quantum Monte-Carlo calculation of lattice energies. Results indicate that popular molecular models only slightly overestimate the stability of ice zero. In addition, we study all possible realisations of proton disorder within the ice zero unit cell, and identify the ground state as ferroelectric. Comparisons are made to other low density metastable forms of ice, suggesting that the ice i structure [C. J. Fennel and J. D. Gezelter, J. Chem. Theory Comput. 1, 662 (2005)] may be equally relevant to ice formation.

  20. Weakening of ice by magnesium perchlorate hydrate

    E-Print Network [OSTI]

    Lenferink, Hendrik J., 1985-

    2012-01-01

    I show that perchlorate hydrates, which have been indirectly detected at high Martian circumpolar latitudes by the Phoenix Mars Lander, have a dramatic effect upon the rheological behavior of polycrystalline water ice under ...

  1. Largest Ice-Bank Promotes Load Management 

    E-Print Network [OSTI]

    Brarmann, G. L.

    1983-01-01

    conservation measures were incorporated in the design of the new research facility, the ice-bank system has been the most cost-effective of the load management projects at Union Oil....

  2. Widespread Excess Ice in Arcadia Planitia, Mars

    E-Print Network [OSTI]

    Bramson, Ali M; Putzig, Nathaniel E; Sutton, Sarah; Plaut, Jeffrey J; Brothers, T Charles; Holt, John W

    2015-01-01

    The distribution of subsurface water ice on Mars is a key constraint on past climate, while the volumetric concentration of buried ice (pore-filling versus excess) provides information about the process that led to its deposition. We investigate the subsurface of Arcadia Planitia by measuring the depth of terraces in simple impact craters and mapping a widespread subsurface reflection in radar sounding data. Assuming that the contrast in material strengths responsible for the terracing is the same dielectric interface that causes the radar reflection, we can combine these data to estimate the dielectric constant of the overlying material. We compare these results to a three-component dielectric mixing model to constrain composition. Our results indicate a widespread, decameters-thick layer that is excess water ice ~10^4 km^3 in volume. The accumulation and long-term preservation of this ice is a challenge for current Martian climate models.

  3. Spreading of oil spilled under ice

    SciTech Connect (OSTI)

    Yapa, P.D.; Chowdhury, T. )

    1990-12-01

    A new set of equations is presented to describe the process of oil spreading under ice in clam waters. These equations consider the gravity (buoyancy)-inertia phase, the gravity (buoyancy)-viscous phase, and the termination of spreading during the buoyancy-surface-tension phase. The derivation considers both the constant discharge mode and the constant volume mode. Therefore, a complete description of the spreading phenomena from the time of initial spill to the termination of spreading is presented. Laboratory experiments were conducted using both real ice covers in a cold room and artificial ice covers. The experiments included different ice-cover roughnesses from smooth to rough, oils of different viscosities, and a variety of discharge conditions. The experimental data show close agreement with the theory. These equations can be used during cleanup or environmental impact assessment to estimate the area of an oil slick with respect to time.

  4. Glaciers and Ice Sheets Mapping Orbiter concept

    E-Print Network [OSTI]

    Jezek, Kenneth; Rodriguez, Ernesto; Gogineni, Sivaprasad; Freeman, Anthony; Curlander, John; Paden, John D.; Allen, Christopher Thomas

    2006-05-13

    We describe a concept for a spaceborne radar system designed to measure the surface and basal topography of terrestrial ice sheets and to determine the physical properties of the glacier bed. Our primary objective is to ...

  5. Recent vs from IceCube

    E-Print Network [OSTI]

    Klein, Spencer R.; IceCube Collaboration

    2008-01-01

    in the Sun and the Earth, look for low-energy (10 MeV)Sun. IceTop has made a preliminary measurement of the cosmic-ray energy

  6. Automatic Fish Classification for Underwater Species Behavior Understanding

    E-Print Network [OSTI]

    Fisher, Bob

    Automatic Fish Classification for Underwater Species Behavior Understanding Concetto Spampinato an automatic fish classi- fication system that operates in the natural underwater en- vironment to assist marine biologists in understanding fish behavior. Fish classification is performed by combining two types

  7. Automatic Tube Cleaning Systems for Condensers and Heat Exchangers 

    E-Print Network [OSTI]

    Someah, K.

    1991-01-01

    The on-line Automatic Tube Cleaning Systems (ATCS) for condensers and heat exchangers provide a positive means for automatic cleaning on a continuous basis, while the exchanger or condenser remains "on stream" and at ...

  8. Automatic vehicle following for emergency lane change maneuvers 

    E-Print Network [OSTI]

    Yoon, Seok Min

    1998-01-01

    A lane change maneuver is one of the many appropriate responses to an emergency situation. This thesis proposes to design a combined controller for automatic vehicles for an emergency lane change (ELC) maneuver on an Automatic Highway System (AHS...

  9. Automatic beam path analysis of laser wakefield particle acceleration data

    E-Print Network [OSTI]

    Geddes, Cameron Guy Robinson

    Automatic beam path analysis of laser wakefield particle acceleration data Oliver RĂĽbel1 in a pipeline fashion to automatically locate and analyze high-energy particle bunches undergoing acceleration

  10. Automatic recognition of multiparty human interactions using dynamic Bayesian networks 

    E-Print Network [OSTI]

    Dielmann, Alfred

    2009-01-01

    Relating statistical machine learning approaches to the automatic analysis of multiparty communicative events, such as meetings, is an ambitious research area. We have investigated automatic meeting segmentation both in ...

  11. Development of a Mobile Ice Nucleus Counter

    SciTech Connect (OSTI)

    Kok, Gregory; Kulkarni, Gourihar

    2014-07-10

    An ice nucleus counter has been constructed. The instrument uses built-in refrigeration systems for wall cooling. A cascade refrigeration system will allow the cold wall to operate as low as -70 deg C, and a single stage system can operate the warm wall at -45 deg C. A unique optical particle counter has been constructed using polarization detection of the scattered light. This allows differentiation of the particles exiting the chamber to determine if they are ice or liquid.

  12. Automatically Testing Interacting Software Components Leonard Gallagher

    E-Print Network [OSTI]

    Offutt, Jeff

    Automatically Testing Interacting Software Components Leonard Gallagher Information Technology@ise.gmu.edu ABSTRACT One goal of integration testing for object-oriented software is to ensure high object. It addresses methods for identifying the relevant actions of a test component to be integrated into the system

  13. Automatic Musical Genre Classification Of Audio Signals

    E-Print Network [OSTI]

    Tzanetakis, George

    genre classification for digitally available music has been performed manually. Therefore techniquesAutomatic Musical Genre Classification Of Audio Signals George Tzanetakis Computer Science to structure the increasing amounts of music available in digital form on the Web and are important for music

  14. Automatic Loop Parallelization via Compiler Guided Refactoring

    E-Print Network [OSTI]

    . Lyngby, Denmark Email: {pl,ska}@imm.dtu.dk Computer Science Engineering Chalmers U. Technology, 412 96 by the computing industry today. Yet, applications are often written in ways that prevent automatic parallelization Gothenburg, Sweden Email: lidman@student.chalmers.se, mckee@chalmers.se IBM Haifa Research Labs Mount Carmel

  15. Automatic Recognition of Blog Caspar Ahrensberg

    E-Print Network [OSTI]

    Automatic Recognition of Blog Entries Caspar Ahrensberg Revised Version 1.2 Kongens Lyngby 2012 IMM is a Wordpress blog or not. The algorithm used is the Restricted Top Down Mapping which imposes restrictions on the algorithm to determine its precision when answering if a site is a blog or not. #12;ii #12;Summary (Danish

  16. Automatically Restructuring Programs for the Web

    E-Print Network [OSTI]

    Strickland, Stevie

    Automatically Restructuring Programs for the Web Paul Graunke Northeastern University ptg server­side Web appli­ cations differs substantially from the construction of tradi­ tional interactive programs. In contrast, existing Web pro­ gramming paradigms force programmers to save and re­ store control

  17. Automatically Restructuring Programs for the Web

    E-Print Network [OSTI]

    Tobin-Hochstadt, Sam

    Automatically Restructuring Programs for the Web Paul Graunke Northeastern University ptg server-side Web appli- cations differs substantially from the construction of tradi- tional interactive programs. In contrast, existing Web pro- gramming paradigms force programmers to save and re- store control

  18. Automatically Annotating the ODP Web Taxonomy

    E-Print Network [OSTI]

    Pallis, George

    Automatically Annotating the ODP Web Taxonomy Christiana Christophi Demetrios Zeinalipour. In this paper we present the ideas and algorithms developed around our KeyGen Web Taxonomy Annotation engine) The PageParse Algorithm, which efficiently extracts keywords from Web Taxonomies us- ing a combination

  19. Automatic Subcortical Segmentation Using a Contextual Model

    E-Print Network [OSTI]

    Thompson, Paul

    's Disease Research Center, Los Angeles, CA, USA Abstract. Automatically segmenting subcortical structures, we develop a framework based on machine learning to learn a unified appearance and context model. We patients, 22 with mild cognitive im- pairment, and 26 normal healthy controls). Using standard distance

  20. Automatic Move Pruning Revisited Computing Science Department

    E-Print Network [OSTI]

    Holte, Robert

    Automatic Move Pruning Revisited Neil Burch Computing Science Department University of Alberta of Alberta Edmonton, AB Canada T6G 2E8 (holte@cs.ualberta.ca) Abstract In this paper we show that the move modi- fication to our move pruning method makes it "safe", i.e., it will never prune all the least

  1. Automatic Target Word Disambiguation Using Syntactic Relationships

    E-Print Network [OSTI]

    Automatic Target Word Disambiguation Using Syntactic Relationships Ebony Domingo1 and Rachel Edita. Multiple target translations are due to several meanings of source words, and various target word equivalents depending on the context of the source word. Thus, an automated approach is presented

  2. Automatic Thesaurus Construction for Cross Generation Corpus

    E-Print Network [OSTI]

    Ido, Dagan

    4 Automatic Thesaurus Construction for Cross Generation Corpus HADAS ZOHAR, CHAYA LIEBESKIND for semiautomatic thesaurus construction, for a cross generation, cross genre, and cross cultural corpus. Semiautomatic thesaurus construction is a complex task, and applying it on a cross generation corpus brings its

  3. Collective Mind: Continuous, Automatic Learning to

    E-Print Network [OSTI]

    Massachusetts at Amherst, University of

    : ?? Collective: Peers are units with similar operational & maintenance profiles Peer experience forms Mission: Actively Manage the Maintenance Process ­ Operating at All Levels, All Phases of Operations ­ ContinuouslyCollective Mind: Continuous, Automatic Learning to Improve Equipment Maintenance DoD Great Ideas

  4. Automatic Decision Detection in Meeting Speech 

    E-Print Network [OSTI]

    Hsueh, Pei-Yun; Moore, Johanna D.

    2010-11-01

    are not sufficient for locating decision points from meeting archives. In this paper, we present the AMI DecisionDetector, a system that automatically detects and highlights where the decision-related conversations are. In this paper, we apply the models developed...

  5. Adaptive Web Sites: Automatically Synthesizing Web Pages

    E-Print Network [OSTI]

    Etzioni, Oren

    Adaptive Web Sites: Automatically Synthesizing Web Pages Mike Perkowitz Oren Etzioni Department interfaces Abstract The creation of a complex web site is a thorny problem in user interface design. In IJCAI '97, we challenged the AI community to address this problem by creating adaptive web sites: sites

  6. Exploratory Dijkstra forest based automatic vessel segmentation

    E-Print Network [OSTI]

    Tomasi, Carlo

    , and follows vessel branching naturally and efficiently. To test our method, we constructed a retinal video code freely available online. © 2012 Optical Society of America OCIS codes: (100.0100) Image processing, "Automatic segmentation of seven retinal layers in SDOCT images congruent with expert manual segmentation

  7. On the correlation between ice water content and ice crystal size and its application to radiative transfer and general circulation models

    E-Print Network [OSTI]

    Liou, K. N.

    On the correlation between ice water content and ice crystal size and its application to radiative analysis involving ice water content (IWC) and mean effective ice crystal size (De) intended, K. N., Y. Gu, Q. Yue, and G. McFarguhar (2008), On the correlation between ice water content and ice

  8. Fast Automatic Security Protocol Generation Hongbin Zhou Simon N. Foley

    E-Print Network [OSTI]

    Foley, Simon

    and relies on the skill of the protocol designer. Saidi [32] proposes a semi-automatic design tool based

  9. ?W H A T I S . . . an Automatic

    E-Print Network [OSTI]

    Rowland, Eric

    ?W H A T I S . . . an Automatic Sequence? Eric Rowland A sequence s(n)n0 is called k-automatic if s, hence the name "automatic sequence." For example, consider an automaton with only two states, q1 and q2, b, a, b, b, a, . . . is known as the Thue­Morse sequence. It is 2- automatic, since we are reading

  10. IceCube: Performance, Status, and Future

    E-Print Network [OSTI]

    Carsten Rott; for the IceCube Collaboration

    2006-11-28

    High-energy neutrinos are uniquely suited to study a large variety of physics as they traverse the universe almost untouched, in contrast to conventional astronomical messengers like photons or cosmic rays which are limited by interactions with radiation and matter at high energies or deflected by ambient magnetic fields. Located at the South Pole, IceCube combined with its predecessor AMANDA comprise the world's largest neutrino telescope. IceCube currently consists of nine strings, each containing 60 digital optical modules, deployed at depths of 1.5 to 2.5km in the ice and an array of 16 surface air-shower stations. IceCube is expected to be completed in early 2011 at which time it will instrument a volume of one km^3 below the IceTop air-shower array covering an area of one km^2. The current IceCube detector performance is described and an outlook given into the large variety of physics that it can address, with an emphasis on the search for ultra-high-energy neutrinos which may shed light on the origins of the highest energy cosmic rays.

  11. IceCube: Performance, Status, and Future

    E-Print Network [OSTI]

    Rott, C

    2006-01-01

    High-energy neutrinos are uniquely suited to study a large variety of physics as they traverse the universe almost untouched, in contrast to conventional astronomical messengers like photons or cosmic rays which are limited by interactions with radiation and matter at high energies or deflected by ambient magnetic fields. Located at the South Pole, IceCube combined with its predecessor AMANDA comprise the world's largest neutrino telescope. IceCube currently consists of nine strings, each containing 60 digital optical modules, deployed at depths of 1.5 to 2.5km in the ice and an array of 16 surface air-shower stations. IceCube is expected to be completed in early 2011 at which time it will instrument a volume of one km^3 below the IceTop air-shower array covering an area of one km^2. The current IceCube detector performance is described and an outlook given into the large variety of physics that it can address, with an emphasis on the search for ultra-high-energy neutrinos which may shed light on the origins ...

  12. Ice chemistry in starless molecular cores

    E-Print Network [OSTI]

    Kalvans, Juris

    2015-01-01

    Starless molecular cores are natural laboratories for interstellar molecular chemistry research. The chemistry of ices in such objects was investigated with a three-phase (gas, surface, and mantle) model. We considered the center part of five starless cores, with their physical conditions derived from observations. The ice chemistry of oxygen, nitrogen, sulfur, and complex organic molecules (COMs) was analyzed. We found that an ice-depth dimension, measured, e.g., in monolayers, is essential for modeling of chemistry in interstellar ices. Particularly, the H2O:CO:CO2:N2:NH3 ice abundance ratio regulates the production and destruction of minor species. It is suggested that photodesorption during core collapse period is responsible for high abundance of interstellar H2O2 and O2H, and other species synthesized on the surface. The calculated abundances of COMs in ice were compared to observed gas-phase values. Smaller activation barriers for CO and H2CO hydrogenation may help explain the production of a number of...

  13. Automatic determination of sub-word units for automatic speech recognition 

    E-Print Network [OSTI]

    Couper Kenney, Fiona

    2008-01-01

    Current automatic speech recognition (ASR) research is focused on recognition of continuous, spontaneous speech. Spontaneous speech contains a lot of variability in the way words are pronounced, and canonical pronunciations ...

  14. Automatic Dependability Analysis for Supporting Design Decisions in UML

    E-Print Network [OSTI]

    Firenze, Universitŕ degli Studi di

    Automatic Dependability Analysis for Supporting Design Decisions in UML Andrea Bondavalli1, Istvan and analysis tools for the automatic validation of the system under design. We apply an automatic trans though a thorough system specification im- proves the quality of the design , it is not sufficient

  15. Automatic Generation of Roadmap for e-Government Implementation

    E-Print Network [OSTI]

    Boyer, Edmond

    Automatic Generation of Roadmap for e-Government Implementation Mauricio Solar, Daniel Pantoja, and automatically generates the roadmap for each evaluated public agency. In this article, the automatic generation of the proposed roadmap is detailed. Keywords: e-government, roadmap, capability, maturity model. 1 Introduction

  16. Automatic mapping of ASSIST applications using process algebra

    E-Print Network [OSTI]

    Benoit, Anne

    Automatic mapping of ASSIST applications using process algebra M. Aldinucci Inst. of Information Programme Project no. FP6-004265 #12;Automatic mapping of ASSIST applications using process algebra M of the application, we propose to automatically generate performance models from the application using the process

  17. Automatic structures for subsemigroups of BaumslagSolitar semigroups

    E-Print Network [OSTI]

    St Andrews, University of

    Automatic structures for subsemigroups of Baumslag­Solitar semigroups Alan J. Cain [AJC] Centro de This paper studies automatic structures for subsemigroups of Baumslag­Solitar semigroups (that is, semigroups presented by x, y | (yxm, xny) where m, n N). A geometric argument (a rarity in the field of automatic

  18. AUTOMATIC GUIDING OF THE PRIMARY IMAGE OF SOLAR GREGORY TELESCOPES

    E-Print Network [OSTI]

    AUTOMATIC GUIDING OF THE PRIMARY IMAGE OF SOLAR GREGORY TELESCOPES G. KÜVELER1, E. WIEHR2, D of solar Gregory telescopes is used for automatic guiding. This new system avoids temporal varying at the Gregory telescopes at Tenerife and at Locarno, is described. 1. Introduction Automatic guiding

  19. Automatic Digital Surface Model (DSM) Generation from Linear Array Images

    E-Print Network [OSTI]

    Giger, Christine

    Automatic Digital Surface Model (DSM) Generation from Linear Array Images A dissertation submitted-examiner Presented by Li Zhang Zurich 2005 #12;IGP Mitteilungen Nr. 88 Automatic Digital Surface Model (DSM-906467-55-4 #12;DISS. ETH NO. 16078 Automatic Digital Surface Model (DSM) Generation from Linear Array Images

  20. Automatic groups, subgroups and cosets Derek F. Holt

    E-Print Network [OSTI]

    Holt, Derek

    Automatic groups, subgroups and cosets Derek F. Holt Mathematics Institute, University of Warwick properties os automatic groups and their generalisations to subgroups and cosets are reviewed briefly, mainly from a computational perspective. A result about the asynchronous automaticity of an HNN extension

  1. Automatic Search for Differential Trails in ARX Ciphers (extended version)

    E-Print Network [OSTI]

    International Association for Cryptologic Research (IACR)

    Automatic Search for Differential Trails in ARX Ciphers (extended version) Alex Biryukov {Alex.Biryukov,Vesselin.Velichkov}@uni.lu Abstract. We propose a tool 1 for automatic search. Keywords: symmetric-key, differential trail, tools for cryptanalysis, automatic search, ARX, TEA, XTEA

  2. Automatic Adjustment of Image Sharpness in Relief Shading

    E-Print Network [OSTI]

    Giger, Christine

    Automatic Adjustment of Image Sharpness in Relief Shading Author: Marianna Serebryakova mserebry for analytical (i.e., automatic) relief shading methods. This Master thesis aims at the creation of a new method to perform automatic contrast adjustment in analytical relief shading. This is one of the core tasks of Swiss

  3. Automatic Landmark Tracking and the Optimization of Brain Conformal Mapping

    E-Print Network [OSTI]

    Thompson, Paul

    Automatic Landmark Tracking and the Optimization of Brain Conformal Mapping 1Lok Ming Lui , 1 manually, especially when large dataset must be analyzed. We present algorithms to automatically detect. Methods: We propose an automatic landmark curve tracing method based on the principal directions

  4. Automatic Intra-Application Load Balancing for Heterogeneous Systems

    E-Print Network [OSTI]

    Huang, Wei

    Automatic Intra-Application Load Balancing for Heterogeneous Systems Michael Boyer, Shuai Che AMD #12;2 | Automatic Intra-Application Load Balancing | June 14, 2011 Motivation Many applications;3 | Automatic Intra-Application Load Balancing | June 14, 2011 Leveraging Multiple Devices Writing correct

  5. Automatic mapping of ASSIST applications using process algebra Marco Aldinucci

    E-Print Network [OSTI]

    Benoit, Anne

    Automatic mapping of ASSIST applications using process algebra Marco Aldinucci Inst. of Information to optimise the mapping of the application, we propose to automatically generate performance mod- els from-level parallel programming; ASSIST environment; Performance Eval- uation Process Algebra (PEPA); automatic model

  6. Automatic Affective Responses to Smoking Cues B. Keith Payne

    E-Print Network [OSTI]

    Automatic Affective Responses to Smoking Cues B. Keith Payne University of North Carolina at Chapel Hill F. Joseph McClernon and Ian G. Dobbins Duke University The authors examined automatic emotional, however, has yielded mixed evidence for whether smokers have favorable or unfavorable automatic responses

  7. Automatic Approach of Provable Security and its Application for OAEP+

    E-Print Network [OSTI]

    International Association for Cryptologic Research (IACR)

    Automatic Approach of Provable Security and its Application for OAEP+ GU Chun-Xiang, Guang Yan, ZHU. This paper introduces the game-based approach of writing security proofs and its automatic technique. It advocates the automatic security proof approach based on process calculus, and presents the initial game

  8. Automatic calibration of LDA measurement volume size Mark Saffman

    E-Print Network [OSTI]

    Saffman, Mark

    Automatic calibration of LDA measurement volume size Mark Saffman The problem of particle number the instrument measurement cross section are given. An automatic calibration method for determining unknown are difficult and have rarely been reported inthe liter- ature. A new method of automatically determining

  9. AUTOMATIC LEXICON ENHANCEMENT BY MEANS OF CORPUS TAGGING

    E-Print Network [OSTI]

    AUTOMATIC LEXICON ENHANCEMENT BY MEANS OF CORPUS TAGGING Frdddric Bdchet , Thierry Spriet , Marc E1 maximal cover on a specific topic is an important benefit in many applications of Automatic Speech and Natural Language Processing. The enhancement of these lex- icons can be made automatic as big corpora

  10. Automatic Detection of Prominence Eruption Using Consecutive Solar Images

    E-Print Network [OSTI]

    1 Automatic Detection of Prominence Eruption Using Consecutive Solar Images Gang Fu1 , Frank Y presented can lead to automatic monitoring and characterization of solar events. Index Terms ­ Prominence eruption, automatic detection, solar features, and image segmentation #12;2 I. INTRODUCTION Prominence

  11. Automatic Computation of the Complete Root Classification for a Parametric

    E-Print Network [OSTI]

    Jeffrey, David

    Automatic Computation of the Complete Root Classification for a Parametric Polynomial Songxin Liang, Canada Abstract An improved algorithm, together with its implementation, is presented for the automatic) for references. Our present goal is to compute automat- ically the Complete Root Classification (CRC

  12. Automatic structures on central Walter D. Neumann and Michael Shapiro #

    E-Print Network [OSTI]

    Neumann, Walter

    [Page 1] Automatic structures on central extensions Walter D. Neumann and Michael Shapiro # Abstract. We show that a central extension of a group H by an abelian group A has an automatic structure with A a rational subgroup if and only if H has an automatic structure for which the extension is given

  13. Automatic congruences for diagonals of rational functions Eric Rowland

    E-Print Network [OSTI]

    Rowland, Eric

    Automatic congruences for diagonals of rational functions Eric Rowland Universit´e du Qu´ebec `a ryassawi@trentu.ca April 23, 2014 Abstract In this paper we use the framework of automatic sequences gives completely automatic proofs of known results, establishes a number of new theorems for well

  14. Automatic Construction of News Hypertext Theodore Dalamagas, Mark D. Dunlop

    E-Print Network [OSTI]

    Dunlop, Mark D.

    Automatic Construction of News Hypertext Theodore Dalamagas, Mark D. Dunlop Computing Science Abstract The automatic construction of hypertext is an important part of the hy­ pertext authoring process. In this paper, we present a methodology for the automatic creation of links for news hypertext which is tailored

  15. Automatic Facial Expression Recognition Using Boosted Discriminatory Classifiers

    E-Print Network [OSTI]

    Bowden, Richard

    Automatic Facial Expression Recognition Using Boosted Discriminatory Classifiers Stephen Moore {stephen.moore,r.bowden}@surrey.ac.uk Abstract. Over the last two decades automatic facial expression recog a dedicated classifier can be consrtucted to give optimal automatic parameter se- lection of the detector

  16. Automatic groups, subgroups and cosets Derek F. Holt

    E-Print Network [OSTI]

    Holt, Derek

    Automatic groups, subgroups and cosets Derek F. Holt@maths.warwick.ac.uk Abstract The history, definiton and principal properties os automatic groups and their generalisations the asynchronous automaticity of an HNN extension is then proved and applied to an example that was proposed

  17. Automatic sources of aggression Alexander Todorov*, John A. Bargh1

    E-Print Network [OSTI]

    Bargh, John A.

    Automatic sources of aggression Alexander Todorov*, John A. Bargh1 Department of Psychology, New 2 August 2000 Abstract In this paper, we review research on automaticity with particular relevance to aggression. Once triggered by environmental features, preconscious automatic processes run to completion

  18. Automatic Protocol Selection in Secure Two-Party Computations

    E-Print Network [OSTI]

    International Association for Cryptologic Research (IACR)

    Automatic Protocol Selection in Secure Two-Party Computations (Full Version) Florian Kerschbaum1 for the best performance. In this paper we propose automatic protocol selection which selects a protocol, based on an extended performance model we automatically select the best protocol for a sub

  19. Automatic detection of UXO magnetic anomalies using extended Euler deconvolution

    E-Print Network [OSTI]

    Automatic detection of UXO magnetic anomalies using extended Euler deconvolution Kristofer Davis1 , Yaoguo Li1 , and Misac Nabighian1 ABSTRACT We have developed an algorithm for the automatic detec- tion of compact and iso- lated anomalies; it has enabled us to perform automatic anomaly selection for further

  20. Automatic congruences for diagonals of rational functions Eric Rowland

    E-Print Network [OSTI]

    Rowland, Eric

    Automatic congruences for diagonals of rational functions Eric Rowland Universitâ??e du Quâ??ebec â??a ryassawi@trentu.ca April 23, 2014 Abstract In this paper we use the framework of automatic sequences gives completely automatic proofs of known results, establishes a number of new theorems for well

  1. AUTOMATIC NAMED IDENTIFICATION OF SPEAKERS USING DIARIZATION AND ASR SYSTEMS

    E-Print Network [OSTI]

    AUTOMATIC NAMED IDENTIFICATION OF SPEAKERS USING DIARIZATION AND ASR SYSTEMS Vincent Jousse, Simon of broadcast news without a priori acoustic information about speakers. Using an automatic speech recognition system and an automatic speaker diariza- tion system, we present improvements for a method which allows

  2. Automatic Error Elimination by Horizontal Code Transfer across Multiple Applications

    E-Print Network [OSTI]

    Polz, Martin

    Automatic Error Elimination by Horizontal Code Transfer across Multiple Applications Stelios CSAIL, Cambridge, MA, USA Abstract We present Code Phage (CP), a system for automatically transferring. To the best of our knowledge, CP is the first system to automatically transfer code across multiple

  3. Discriminative MR Image Feature Analysis for Automatic Schizophrenia and Alzheimer's

    E-Print Network [OSTI]

    neuroradiologists. Most work in automatic or semi- automatic MR neuroimage classification [1,5,14,7,16] has beenDiscriminative MR Image Feature Analysis for Automatic Schizophrenia and Alzheimer's Disease Classification Yanxi Liu1 , Leonid Teverovskiy1 , Owen Carmichael1 , Ron Kikinis2 , Martha Shenton2 , Cameron S

  4. Technology demonstration of Ka-band digitally-beamformed radar for ice topography mapping

    E-Print Network [OSTI]

    Sadowy, G; Heavey, B; Moller, D; Rignot, E; Zawadzki, M; Rengarajan, S

    2007-01-01

    Beamformed Radar for Ice Topography Mapping Gregory Sadowy,Glacier and Land Ice Surface Topography Interferometer) is aGLISTIN will collect ice topography measurements over a wide

  5. Assimilation of Ice Concentration in an IceOcean Model R. W. LINDSAY AND J. ZHANG

    E-Print Network [OSTI]

    Zhang, Jinlun

    of the actual fields. The simulated ice thickness can then be used to determine the major modes of variability of the ice thickness and the physical processes that are important in their formation. The simulations from concentration measured by satellites is subject to errors (Kwok 2002), particularly during the summer when

  6. ICED'09/148 INTERNATIONAL CONFERENCE ON ENGINEERING DESIGN, ICED'09

    E-Print Network [OSTI]

    Papalambros, Panos

    , marketing, and psychology. Quantitative models from these disciplines can be integrated into a design for teaching product design and for designing products taking into account market and policy environments alongICED'09/148 INTERNATIONAL CONFERENCE ON ENGINEERING DESIGN, ICED'09 24 - 27 AUGUST 2009, STANFORD

  7. The IT Energy Efficiency Imperative A white paper for decision makers on the urgency and benefits of embracing IT energy efficiency principles and practices

    E-Print Network [OSTI]

    Narasayya, Vivek

    The IT Energy Efficiency Imperative A white paper for decision makers on the urgency and benefits of embracing IT energy efficiency principles and practices #12;The IT Energy Efficiency Imperative Mark Aggar | June 2011 www.microsoft.com/environment tt #12;The IT Energy Efficiency Imperative 3 4 5 6 3 4 5 6

  8. Heat transfer in ice hockey halls: measurements, energy analysis and analytical ice pad temperature profile

    E-Print Network [OSTI]

    Ferrantelli, Andrea

    2015-01-01

    We consider heat transfer processes in an ice hockey hall, during operating conditions, with a bottom-up approach based upon on-site measurements. Detailed temperature data of both the ice pad and the air above the ice rink are used for a heat balance calculation in the steady-state regime, which quantifies the impact of each single heat source. We solve the heat equation in the ice slab in transient regime, and obtain a general analytical formula for the temperature profile. This solution is then applied to the resurfacing process by using our measurements as (time-dependent) boundary conditions (b.c.), and compared to an analogous numerical computation with good agreement. Our analytical formula is given with implicit initial condition and b.c., therefore it can be used not only in ice halls, but in a large variety of engineering applications.

  9. Heat transfer in ice hockey halls: measurements, energy analysis and analytical ice pad temperature profile

    E-Print Network [OSTI]

    Andrea Ferrantelli; Klaus Viljanen

    2015-06-30

    We consider heat transfer processes in an ice hockey hall, during operating conditions, with a bottom-up approach based upon on-site measurements. Detailed temperature data of both the ice pad and the air above the ice rink are used for a heat balance calculation in the steady-state regime, which quantifies the impact of each single heat source. We solve the heat equation in the ice slab in transient regime, and obtain a general analytical formula for the temperature profile. This solution is then applied to the resurfacing process by using our measurements as (time-dependent) boundary conditions (b.c.), and compared to an analogous numerical computation with good agreement. Our analytical formula is given with implicit initial condition and b.c., therefore it can be used not only in ice halls, but in a large variety of engineering applications.

  10. The Role of Snow and Ice in the Climate System

    SciTech Connect (OSTI)

    Barry, Roger G.

    2007-12-19

    Global snow and ice cover (the 'cryosphere') plays a major role in global climate and hydrology through a range of complex interactions and feedbacks, the best known of which is the ice - albedo feedback. Snow and ice cover undergo marked seasonal and long term changes in extent and thickness. The perennial elements - the major ice sheets and permafrost - play a role in present-day regional and local climate and hydrology, but the large seasonal variations in snow cover and sea ice are of importance on continental to hemispheric scales. The characteristics of these variations, especially in the Northern Hemisphere, and evidence for recent trends in snow and ice extent are discussed.

  11. The Role of Snow and Ice in the Climate System

    ScienceCinema (OSTI)

    Barry, Roger G.

    2009-09-01

    Global snow and ice cover (the 'cryosphere') plays a major role in global climate and hydrology through a range of complex interactions and feedbacks, the best known of which is the ice - albedo feedback. Snow and ice cover undergo marked seasonal and long term changes in extent and thickness. The perennial elements - the major ice sheets and permafrost - play a role in present-day regional and local climate and hydrology, but the large seasonal variations in snow cover and sea ice are of importance on continental to hemispheric scales. The characteristics of these variations, especially in the Northern Hemisphere, and evidence for recent trends in snow and ice extent are discussed.

  12. WATER ICE IN THE KUIPER BELT

    SciTech Connect (OSTI)

    Brown, M. E.; Fraser, W. C. [Division of Geological and Planetary Sciences, California Institute of Technology, Pasadena, CA 91125 (United States); Schaller, E. L., E-mail: mbrown@caltech.edu [NASA Dryden Aircraft Operations Facility, Palmdale, CA 93550 (United States)

    2012-06-15

    We examine a large collection of low-resolution near-infrared spectra of Kuiper Belt objects (KBOs) and centaurs in an attempt to understand the presence of water ice in the Kuiper Belt. We find that water ice on the surface of these objects occurs in three separate manners: (1) Haumea family members uniquely show surfaces of nearly pure water ice, presumably a consequence of the fragmentation of the icy mantle of a larger differentiated proto-Haumea; (2) large objects with absolute magnitudes of H < 3 (and a limited number to H = 4.5) have surface coverings of water ice-perhaps mixed with ammonia-that appears to be related to possibly ancient cryovolcanism on these large objects; and (3) smaller KBOs and centaurs which are neither Haumea family members nor cold-classical KBOs appear to divide into two families (which we refer to as 'neutral' and 'red'), each of which is a mixture of a common nearly neutral component and either a slightly red or very red component that also includes water ice. A model suggesting that the difference between neutral and red objects due to formation in an early compact solar system either inside or outside, respectively, of the {approx}20 AU methanol evaporation line is supported by the observation that methanol is only detected on the reddest objects, which are those which would be expected to have the most of the methanol containing mixture.

  13. Method for automatically scramming a nuclear reactor

    DOE Patents [OSTI]

    Ougouag, Abderrafi M.; Schultz, Richard R.; Terry, William K.

    2005-12-27

    An automatically scramming nuclear reactor system. One embodiment comprises a core having a coolant inlet end and a coolant outlet end. A cooling system operatively associated with the core provides coolant to the coolant inlet end and removes heated coolant from the coolant outlet end, thus maintaining a pressure differential therebetween during a normal operating condition of the nuclear reactor system. A guide tube is positioned within the core with a first end of the guide tube in fluid communication with the coolant inlet end of the core, and a second end of the guide tube in fluid communication with the coolant outlet end of the core. A control element is positioned within the guide tube and is movable therein between upper and lower positions, and automatically falls under the action of gravity to the lower position when the pressure differential drops below a safe pressure differential.

  14. Hypergraph Partitioning for Automatic Memory Hierarchy Management

    SciTech Connect (OSTI)

    Krishnamoorthy, Sriram; Catalyurek, Umit; Nieplocha, Jarek; Rountev, Atanas; Sadayappan, Ponnuswamy

    2007-11-15

    The paper presents present a mechanism for automatic management of the memory hierarchy, including secondary storage, in the context of a global address space parallel programming framework. The programmer specifies the parallelism and locality in the computation. The scheduling of the computation into stages, together with the movement of the associated data between secondary storage and global memory, and between global memory and local memory, is automatically managed by the framework. A novel formulation of hypergraph partitioning is used to model the optimization problem of minimizing disk I/O by improving locality of access. Experimental evaluation of the proposed approach using a sub-computation from the quantum chemistry domain shows a reduction in the disk I/O cost by upto a factor of 11, and a reduction in turnaround time by upto 97%, as compared to alternatives used in state-of-the-art quantum chemistry codes.

  15. Fast Numerical Method for Growth and Retreat of Subsurface Ice on Mars Norbert Schorghofer

    E-Print Network [OSTI]

    Schörghofer, Norbert

    ice, retreat of pore ice, retreat of an ice sheet, and retreat of pore ice due to geothermal heating is the vertical spatial resolution and D the diffusion coefficient. The vertical grid spacing needs to be finer

  16. Automatic detection of sweep-meshable volumes

    DOE Patents [OSTI]

    Tautges; Timothy J. (Madison, WI), White; David R. (Pittsburgh, PA)

    2006-05-23

    A method of and software for automatically determining whether a mesh can be generated by sweeping for a representation of a geometric solid comprising: classifying surface mesh schemes for surfaces of the representation locally using surface vertex types; grouping mappable and submappable surfaces of the representation into chains; computing volume edge types for the representation; recursively traversing surfaces of the representation and grouping the surfaces into source, target, and linking surface lists; and checking traversal direction when traversing onto linking surfaces.

  17. Turbulent heat exchange between water and ice at an evolving ice-water interface

    E-Print Network [OSTI]

    Ramudu, Eshwan; Olson, Peter; Gnanadesikan, Anand

    2015-01-01

    We conduct laboratory experiments on the time evolution of an ice layer cooled from below and subjected to a turbulent shear flow of warm water from above. Our study is motivated by observations of warm water intrusion into the ocean cavity under Antarctic ice shelves, accelerating the melting of their basal surfaces. The strength of the applied turbulent shear flow in our experiments is represented in terms of its Reynolds number $\\textit{Re}$, which is varied over the range $2.0\\times10^3 \\le \\textit{Re} \\le 1.0\\times10^4$. Depending on the water temperature, partial transient melting of the ice occurs at the lower end of this range of $\\textit{Re}$ and complete transient melting of the ice occurs at the higher end. Following these episodes of transient melting, the ice reforms at a rate that is independent of $\\textit{Re}$. We fit our experimental measurements of ice thickness and temperature to a one-dimensional model for the evolution of the ice thickness in which the turbulent heat transfer is parameter...

  18. Equations of state of ice VI and ice VII at high pressure and high temperature

    SciTech Connect (OSTI)

    Bezacier, Lucile; Hanfland, Michael; Journaux, Baptiste; Perrillat, Jean-Philippe; Cardon, Hervé; Daniel, Isabelle

    2014-09-14

    High-pressure H{sub 2}O polymorphs among which ice VI and ice VII are abundant in the interiors of large icy satellites and exo-planets. Knowledge of the elastic properties of these pure H{sub 2}O ices at high-temperature and high-pressure is thus crucial to decipher the internal structure of icy bodies. In this study we assess for the first time the pressure-volume-temperature (PVT) relations of both polycrystalline pure ice VI and ice VII at high pressures and temperatures from 1 to 9 GPa and 300 to 450 K, respectively, by using in situ synchrotron X-ray diffraction. The PVT data are adjusted to a second-order Birch-Murnaghan equation of state and give V{sub 0} = 14.17(2) cm{sup 3}?mol{sup ?1}, K{sub 0} = 14.05(23) GPa, and ?{sub 0} = 14.6(14) × 10{sup ?5} K{sup ?1} for ice VI and V{sub 0} = 12.49(1) cm{sup 3}?mol{sup ?1}, K{sub 0} = 20.15(16) GPa, and ?{sub 0} = 11.6(5) × 10{sup ?5} K{sup ?1} for ice VII.

  19. A reconciled estimate of ice-sheet mass balance

    E-Print Network [OSTI]

    2012-01-01

    Estimate of Ice-Sheet Mass Balance Andrew Shepherd, 1 * Erikand models of surface mass balance and glacial isostaticThis Ice Sheet Mass Balance Exercise (IMBIE) was facilitated

  20. Optimization of Ice Thermal Storage Systems Design for HVAC Systems 

    E-Print Network [OSTI]

    Nassif, N.; Hall, C.; Freelnad, D.

    2013-01-01

    energy cost. A tool for optimal ice storage design is developed, considering the charging and discharge times and optimal sizing of ice thermal storage system. Detailed simulation studies using real office building located near Orlando, FL including...

  1. Searching for Cosmic Accelerators via IceCube

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

    Searching for Cosmic Accelerators via IceCube Searching for Cosmic Accelerators via IceCube Berkeley Lab Researchers Part of an International Hunt November 21, 2013 Lynn Yarris,...

  2. Cirrus cloud formation and the role of heterogeneous ice nuclei

    E-Print Network [OSTI]

    Froyd, Karl D.

    2013-01-01

    Composition, size, and phase are key properties that define the ability of an aerosol particle to initiate ice in cirrus clouds. Properties of cirrus ice nuclei (IN) have not been well constrained due to a lack of systematic ...

  3. Energy conservation in ice skating rinks

    SciTech Connect (OSTI)

    Dietrich, B.K.; McAvoy, T.J.

    1980-01-01

    An economic and energy analysis of ice rinks was made to examine the areas in which energy could be profitably conserved. The areas where new equipment could make a major reduction in energy use are: the use of waste heat for space heating, the installation of a low emissivity false ceiling to reduce radiant heat, the use of a load cycling controller to reduce refrigeration costs, and the installation of more efficient lighting systems. Changes in rink operating procedure that could cut energy use are: higher refrigerant temperatures, thinner ice, the use of colder resurfacing water, turning the compressors and pumps off at night, and reducing ventilation.

  4. Covered Product Category: Water-Cooled Ice Machines

    Office of Energy Efficiency and Renewable Energy (EERE)

    The Federal Energy Management Program (FEMP) provides acquisition guidance and federal efficiency requirements for water-cooled ice machines.

  5. Operation and Control of Full Ice-storage System 

    E-Print Network [OSTI]

    Liu, Q.; Liu, Y.

    2006-01-01

    In a dividing time ice-storage system, the refrigerator does not operate during power's on-peak period, and all the cooling is supplied by the ice stored in off-peak period, so that the use of electricity can be maintained. When the ice is thawing...

  6. Ice Simulation Using GPGPU Shadi Alawneh and Dennis Peters

    E-Print Network [OSTI]

    Peters, Dennis

    is to increase the understanding of interactions between ice and steel structures such as ships and oil rigsIce Simulation Using GPGPU Shadi Alawneh and Dennis Peters Electrical and Computer Engineering.alawneh, dpeters}@mun.ca Abstract-- Simulation of the behaviour of a ship operating in pack ice

  7. Hyper-Real-Time Ice Simulation and Modeling Using GPGPU

    E-Print Network [OSTI]

    Peters, Dennis

    Hyper-Real-Time Ice Simulation and Modeling Using GPGPU By c Shadi Alawneh, B. Eng., M. Eng's, Newfoundland Title: Hyper-Real-Time Ice Simulation and Modeling Using GPGPU Author: Shadi Alawneh, B. Eng operating in pack ice is a computationally in- tensive process to which General Purpose Computing

  8. Introduction Microorganisms in sea ice function ecologically in the

    E-Print Network [OSTI]

    Stewart, Frank

    where pelagic and sea ice habitats are intrinsically coupled (Laws 1985, Garrison 1991, Eicken 1992, Knox 1994, Garrison & Mathot 1996, Arrigo et al. 1997, Brierley & Thomas 2002). For instance, sea ice algae - primarily diatoms and phototrophic flagellates (e.g. Garrison 1991) - are inocula for ice

  9. 29April2011JohnLearnedatIceCubeDedication1 IceCube Dedication Symposium, Madison, Wisconsin

    E-Print Network [OSTI]

    Learned, John

    29April2011JohnLearnedatIceCubeDedication1 IceCube Dedication Symposium, Madison, Wisconsin 29 of Neutrino Studies #12;"Talking to the neighbors" 29April2011JohnLearnedatIceCubeDedication2 "A modest://www.economist.com/PrinterFriendly.cfm?story_id=18526871 Not what this talk is about.... SETI with Neutrinos #12;29April2011JohnLearnedatIceCubeDedication3

  10. Decadal scale variations in ice flow along Whillans Ice Stream and its tributaries, West Antarctica

    E-Print Network [OSTI]

    Stearns, Leigh; Jezek, Kenneth C.; van der Veen, Cornelis J.

    2005-01-05

    We investigate velocity changes occurring along Whillans Ice Stream (WIS) by comparing velocities derived from repeat aerial photographs acquired in 1985–89 (average date of 1987) to interferometric satellite radar (InSAR) ...

  11. Decadal-scale variations in ice flow along Whillans Ice Stream and its tributaries, West Antarctica

    E-Print Network [OSTI]

    Stearns, Leigh; Jezek, K.A.; van der Veen, Cornelis J.

    2005-01-01

    We investigate velocity changes occurring along Whillans Ice Stream (WIS) by comparing velocities derived from repeat aerial photographs acquired in 1985–89 (average date of 1987) to interferometric satellite radar (InSAR) ...

  12. Focused synthetic aperture radar processing of ice-sounder data collected over the Greenland ice sheet

    E-Print Network [OSTI]

    Legarsky, J.; Gogineni, Sivaprasad; Akins, T. L.

    2001-10-01

    We developed a synthetic aperture radar (SAR) processing algorithm for airborne/spaceborne ice-sounding radar systems and applied it to data collected in Greenland. By using focused SAR (phase-corrected coherent averaging), we improved along...

  13. Prediction of lake ice in the Netherlands

    E-Print Network [OSTI]

    Haak, Hein

    by HARMONIE ·Flake driven by ECMWF ensembles ·Conclusions and Outlook #12;Lake workshop sept 2012 Motivation Operational Observations ECMWF model #12;Lake workshop sept 2012 h D Air Water Ice ·Surface energy ·Radiative fluxes (Qs, Ql, absorbed solar radiation) ·Turbulent fluxes (sensible and latent heat fluxes

  14. Ice-volcano interactions Eyjafjallajkull volcano, Iceland

    E-Print Network [OSTI]

    Berthier, Etienne

    Ice-volcano interactions in Eyjafjallajökull volcano, Iceland Eyjólfur Magnússon1, Magnús Tumi Sciences, University of Iceland, Reykjavík, Iceland 2. Institute of Earth Sciences, University of Iceland, Reykjavík, Iceland 3. Icelandic Coast Guard SPIRIT workshop 29&30 April 2010, Toulouse Picture by Eyjólfur

  15. Market assessment for active solar heating and cooling products. Category B: a survey of decision-makers in the HVAC marketplace. Final report

    SciTech Connect (OSTI)

    1980-09-01

    A comprehensive evaluation of the market for solar heating and cooling products for new and retrofit markets is reported. The emphasis is on the analysis of solar knowledge among HVAC decision makers and a comprehensive evaluation of their solar attitudes and behavior. The data from each of the following sectors are described and analyzed: residential consumers, organizational and manufacturing buildings, HVAC engineers and architects, builders/developers, and commercial/institutional segments. (MHR)

  16. Self-assessing target with automatic feedback

    DOE Patents [OSTI]

    Larkin, Stephen W.; Kramer, Robert L.

    2004-03-02

    A self assessing target with four quadrants and a method of use thereof. Each quadrant containing possible causes for why shots are going into that particular quadrant rather than the center mass of the target. Each possible cause is followed by a solution intended to help the marksman correct the problem causing the marksman to shoot in that particular area. In addition, the self assessing target contains possible causes for general shooting errors and solutions to the causes of the general shooting error. The automatic feedback with instant suggestions and corrections enables the shooter to improve their marksmanship.

  17. Automatic generation of quarkonium amplitudes in NRQCD

    E-Print Network [OSTI]

    P. Artoisenet; F. Maltoni; T. Stelzer

    2007-12-17

    We present a simple method to automatically evaluate arbitrary tree-level amplitudes involving the production or decay of a heavy quark pair QQbar in a generic {2S+1}L_J^[1,8] state, i.e., the short distance coefficients appearing in the NRQCD factorization formalism. Our approach is based on extracting the relevant contributions from the open heavy quark-antiquark amplitudes through an expansion with respect to the quark-antiquark relative momentum and the application of suitable color and spin projectors. To illustrate the capabilities of the method and its implementation in MadGraph a few applications to quarkonium collider phenomenology are presented.

  18. Fact #850: December 8, 2014 Automatic Transmissions have closed...

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

    Years 1980-2014 fotw850.png Note: Fuel economy average is the production-weighted harmonic mean. Fact 850 Dataset Supporting Information Comparison of Manual and Automatic...

  19. Automatic Learning of Block Storage Access Time Models

    E-Print Network [OSTI]

    Crume, Adam

    2015-01-01

    3 Storage devices 3.1 Scope ofedge-on . . . . . . . . Queueing in a storage device with noAUTOMATIC LEARNING OF BLOCK STORAGE ACCESS TIME MODELS A

  20. Automatic Lung Vessel Segmentation via Stacked Multiscale Feature Learning

    E-Print Network [OSTI]

    Toronto, University of

    Automatic Lung Vessel Segmentation via Stacked Multiscale Feature Learning Ryan Kiros, Karteek We introduce a representation learning approach to segmenting vessels in the lungs. Our algorithm

  1. Automatically Transforming GNU C Source Code Christopher Dahn, Spiros Mancoridis

    E-Print Network [OSTI]

    Mancoridis, Spiros

    Automatically Transforming GNU C Source Code Christopher Dahn, Spiros Mancoridis Department of Computer Science Drexel University, Philadelphia, PA, USA {chris.dahn}@computer.org {mancors

  2. Install an Automatic Blowdown-Control System | Department of...

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

    Install an Automatic Blowdown-Control System (January 2012) More Documents & Publications Minimize Boiler Blowdown Recover Heat from Boiler Blowdown CIBO Energy Efficiency Handbook...

  3. Modeling the Fracture of Ice Sheets on Parallel Computers

    SciTech Connect (OSTI)

    Waisman, Haim; Tuminaro, Ray

    2013-10-10

    The objective of this project was to investigate the complex fracture of ice and understand its role within larger ice sheet simulations and global climate change. This objective was achieved by developing novel physics based models for ice, novel numerical tools to enable the modeling of the physics and by collaboration with the ice community experts. At the present time, ice fracture is not explicitly considered within ice sheet models due in part to large computational costs associated with the accurate modeling of this complex phenomena. However, fracture not only plays an extremely important role in regional behavior but also influences ice dynamics over much larger zones in ways that are currently not well understood. To this end, our research findings through this project offers significant advancement to the field and closes a large gap of knowledge in understanding and modeling the fracture of ice sheets in the polar regions. Thus, we believe that our objective has been achieved and our research accomplishments are significant. This is corroborated through a set of published papers, posters and presentations at technical conferences in the field. In particular significant progress has been made in the mechanics of ice, fracture of ice sheets and ice shelves in polar regions and sophisticated numerical methods that enable the solution of the physics in an efficient way.

  4. AUTOMATIC DIFFERENTIATION OF AN EULERIAN HYDROCODE

    SciTech Connect (OSTI)

    R. HENNINGER; A. CARLE; P. MAUDLIN

    2000-11-01

    Automatic differentiation (AD) is applied to a two-dimensional Eulerian hydrodynamics computer code (hydrocode) to provide gradients that will be used for design optimization and uncertainty analysis. We examine AD in both the forward and adjoint (reverse) mode using Automatic Differentiation of Fortran (ADIFOR, version 3.0). Setup time, accuracy, and run times are described for three problems. The test set consists of a one-dimensional shock-propagation problem, a two-dimensional metal-jet-formation problem and a two-dimensional shell-collapse problem. Setup time for ADIFOR was approximately one month starting from a simplified, fixed-dimension version of the original code. ADIFOR produced accurate (as compared to finite difference) gradients in both modes for all of the problems. These test problems had 17 independent variables. We find that the forward mode is up to 39% slower and the adjoint mode is at least 11% faster than finding the gradient by means of finite differences. Problems of real interest will certainly have more independent variables. The adjoint mode is thus favored since the computational time increases only slightly for additional independent variables.

  5. Automatically Detecting Members and Instrumentation of Music Bands via Web

    E-Print Network [OSTI]

    Widmer, Gerhard

    as new or modi- fied web pages incorporating the changes become available. Deriving (member, instrumentAutomatically Detecting Members and Instrumentation of Music Bands via Web Content Mining Markus to automatically de- tecting music band members and instrumentation using web content min- ing techniques

  6. Automatic Classification of Digestive Organs in Wireless Capsule Endoscopy Videos

    E-Print Network [OSTI]

    Lee, Jeongkyu

    Automatic Classification of Digestive Organs in Wireless Capsule Endoscopy Videos Jeongkyu Lee1. University of North Texas Denton, TX 76203 {jhoh,xyuan}@cse.unt.edu 3 Division of Digestive Diseases UTSW the assessment time, it is critical to develop a technique to automatically discriminate digestive organs

  7. Character String Predicate Based Automatic Software Test Data Generation

    E-Print Network [OSTI]

    Lyu, Michael R.

    Character String Predicate Based Automatic Software Test Data Generation Ruilian Zhao Computer is an important element in programming. A problem that needs further research is how to automatically generate generation of program paths including character string predicates, and the effectiveness of this approach

  8. What's the Code? Automatic Classification of Source Code Archives

    E-Print Network [OSTI]

    Giles, C. Lee

    show that source code can be accurately and automatically classified into topical categories and canWhat's the Code? Automatic Classification of Source Code Archives Secil Ugurel1, Robert Krovetz2, C.psu.edu 2NECResearchInstitute 4 IndependenceWay, Princeton,NJ 08540 {krovetz, dpennock, compuman} @research

  9. Semi-Automatically Mapping Structured Sources into the Semantic Web

    E-Print Network [OSTI]

    Lerman, Kristina

    Taheriyan1 , and Parag Mallick2 1 University of Southern California Information Sciences InstituteSemi-Automatically Mapping Structured Sources into the Semantic Web Craig A. Knoblock1 , Pedro- automatic approach to map structured sources to ontologies in order to build semantic descriptions (source

  10. Automatic Provenance Collection and Publishing in a Science Data Production

    E-Print Network [OSTI]

    Janée, Greg

    lineage throughout the product generation process, and to implement methods for automatically informing phenom- ena are continuous in space and time, the data products are typically gener- ated and exchangedPOSTER Automatic Provenance Collection and Publishing in a Science Data Production Environment

  11. A GEOMETRIC METHOD FOR AUTOMATIC EXTRACTION OF SULCAL FUNDI

    E-Print Network [OSTI]

    A GEOMETRIC METHOD FOR AUTOMATIC EXTRACTION OF SULCAL FUNDI By C.-Y. Kao M. Hofer G. Sapiro J and branchings are rarely defined, even for the major sulci. Methods for extracting the cortical surface from MRI­0436 Phone: 612/624-6066 Fax: 612/626-7370 URL: http://www.ima.umn.edu #12;A GEOMETRIC METHOD FOR AUTOMATIC

  12. Development of an Automatic Filament Disappearance Detection System

    E-Print Network [OSTI]

    1 Development of an Automatic Filament Disappearance Detection System Jianlin Gao1 , Haimin Wang2 Abstract. This paper presents an efficient and automatic method for detecting filament disappearances is to detect the filaments in the solar image, then determine if they are growing, stable or disappearing

  13. Automatic Fracture Reduction Thomas Albrecht and Thomas Vetter

    E-Print Network [OSTI]

    Vetter, Thomas

    Automatic Fracture Reduction Thomas Albrecht and Thomas Vetter University of Basel Abstract. We segmented from CT scans. The result of this virtual fracture reduction is intended to be used an operation plan. We propose to achieve automatic fracture reduction by fitting the bone fragments

  14. Automatic Construction of High Quality Roadmaps for Path Planning

    E-Print Network [OSTI]

    Utrecht, Universiteit

    Automatic Construction of High Quality Roadmaps for Path Planning D.Nieuwenhuisen A.Kamphuis M-CS-2004-068 www.cs.uu.nl #12;Automatic Construction of High Quality Roadmaps for Path Planning D on a technique from robotics, that computes a roadmap of smooth, collision-free, high-quality paths. This roadmap

  15. Automatic and controlled attentional processes in startle eyeblink modification: Effects of

    E-Print Network [OSTI]

    Automatic and controlled attentional processes in startle eyeblink modification: Effects with the hypothesis that passive PPI and PPF are primarily automatic processes, whereas attentional modulation for investigating both automatic and controlled attentional processes ~for reviews see Blumenthal, 1999; Filion

  16. Automatic Calibration of Freeway Models with Model-Based Fault Detection

    E-Print Network [OSTI]

    Dervisoglu, Gunes

    2012-01-01

    3 Automatic Freeway Model Calibration Procedure 3.1 FreewayR. Horowitz, and P. Varaiya. Automatic calibration of theAutomatic Calibration of Freeway Models with Model-Based

  17. Automatic Number Plate Recognition for Australian Conditions Leonard G. C. Hamey

    E-Print Network [OSTI]

    Hamey, Len

    Automatic Number Plate Recognition for Australian Conditions Leonard G. C. Hamey Department the complexity of automatic number plate recognition, making existing approaches inadequate. We have developed application of the system is envisaged. 1. Introduction Automatic recognition of vehicle number plates

  18. Atom addition reactions in interstellar ice analogues

    E-Print Network [OSTI]

    Linnartz, Harold; Fedoseev, Gleb

    2015-01-01

    This review paper summarizes the state-of-the-art in laboratory based interstellar ice chemistry. The focus is on atom addition reactions, illustrating how water, carbon dioxide and methanol can form in the solid state at astronomically relevant temperatures, and also the formation of more complex species such as hydroxylamine, an important prebiotic molecule, and glycolaldehyde, the smallest sugar, is discussed. These reactions are particularly relevant during the dark ages of star and planet formation, i.e., when the role of UV light is restricted. A quantitative characterization of such processes is only possible through dedicated laboratory studies, i.e., under full control of a large set of parameters such as temperature, atom-flux, and ice morphology. The resulting numbers, physical and chemical constants, e.g., barrier heights, reaction rates and branching ratios, provide information on the molecular processes at work and are needed as input for astrochemical models, in order to bridge the timescales t...

  19. Should we geoengineer larger ice caps?

    E-Print Network [OSTI]

    Haqq-Misra, Jacob

    2015-01-01

    The climate of Earth is susceptible to catastrophes that could threaten the longevity of human civilization. Geoengineering to reduce incoming solar radiation has been suggested as a way to mediate the warming effects of contemporary climate change, but a geoengineering program for thousands of years could also be used to enlarge the size of the polar ice caps and create a permanently cooler climate. Such a large ice cap state would make Earth less susceptible to climate threats and could allow human civilization to survive further into the future than otherwise possible. Intentionally extending Earth's glacial coverage will require uninterrupted commitment to this program for millenia but would ultimately reach a cooler equilibrium state where geoengineering is no longer needed. Whether or not this program is ever attempted, this concept illustrates the need to identify preference among potential climate states to ensure the long-term success of civilization.

  20. Large Scale Ice Water Path and 3-D Ice Water Content

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

    Liu, Guosheng

    2008-01-15

    Cloud ice water concentration is one of the most important, yet poorly observed, cloud properties. Developing physical parameterizations used in general circulation models through single-column modeling is one of the key foci of the ARM program. In addition to the vertical profiles of temperature, water vapor and condensed water at the model grids, large-scale horizontal advective tendencies of these variables are also required as forcing terms in the single-column models. Observed horizontal advection of condensed water has not been available because the radar/lidar/radiometer observations at the ARM site are single-point measurement, therefore, do not provide horizontal distribution of condensed water. The intention of this product is to provide large-scale distribution of cloud ice water by merging available surface and satellite measurements. The satellite cloud ice water algorithm uses ARM ground-based measurements as baseline, produces datasets for 3-D cloud ice water distributions in a 10 deg x 10 deg area near ARM site. The approach of the study is to expand a (surface) point measurement to an (satellite) areal measurement. That is, this study takes the advantage of the high quality cloud measurements at the point of ARM site. We use the cloud characteristics derived from the point measurement to guide/constrain satellite retrieval, then use the satellite algorithm to derive the cloud ice water distributions within an area, i.e., 10 deg x 10 deg centered at ARM site.

  1. Large Scale Ice Water Path and 3-D Ice Water Content

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

    Liu, Guosheng

    Cloud ice water concentration is one of the most important, yet poorly observed, cloud properties. Developing physical parameterizations used in general circulation models through single-column modeling is one of the key foci of the ARM program. In addition to the vertical profiles of temperature, water vapor and condensed water at the model grids, large-scale horizontal advective tendencies of these variables are also required as forcing terms in the single-column models. Observed horizontal advection of condensed water has not been available because the radar/lidar/radiometer observations at the ARM site are single-point measurement, therefore, do not provide horizontal distribution of condensed water. The intention of this product is to provide large-scale distribution of cloud ice water by merging available surface and satellite measurements. The satellite cloud ice water algorithm uses ARM ground-based measurements as baseline, produces datasets for 3-D cloud ice water distributions in a 10 deg x 10 deg area near ARM site. The approach of the study is to expand a (surface) point measurement to an (satellite) areal measurement. That is, this study takes the advantage of the high quality cloud measurements at the point of ARM site. We use the cloud characteristics derived from the point measurement to guide/constrain satellite retrieval, then use the satellite algorithm to derive the cloud ice water distributions within an area, i.e., 10 deg x 10 deg centered at ARM site.

  2. Drilling deep in South Pole Ice

    E-Print Network [OSTI]

    Karg, Timo

    2014-01-01

    To detect the tiny flux of ultra-high energy neutrinos from active galactic nuclei or from interactions of highest energy cosmic rays with the microwave background photons needs target masses of the order of several hundred cubic kilometers. Clear Antarctic ice has been discussed as a favorable material for hybrid detection of optical, radio and acoustic signals from ultra-high energy neutrino interactions. To apply these technologies at the adequate scale hundreds of holes have to be drilled in the ice down to depths of about 2500 m to deploy the corresponding sensors. To do this on a reasonable time scale is impossible with presently available tools. Remote drilling and deployment schemes have to be developed to make such a detector design reality. After a short discussion of the status of modern hot water drilling we present here a design of an autonomous melting probe, tested 50 years ago to reach a depth of about 1000 m in Greenland ice. A scenario how to build such a probe today with modern technologies...

  3. Resonant vibrational energy transfer in ice Ih

    SciTech Connect (OSTI)

    Shi, L.; Li, F.; Skinner, J. L.

    2014-06-28

    Fascinating anisotropy decay experiments have recently been performed on H{sub 2}O ice Ih by Timmer and Bakker [R. L. A. Timmer, and H. J. Bakker, J. Phys. Chem. A 114, 4148 (2010)]. The very fast decay (on the order of 100 fs) is indicative of resonant energy transfer between OH stretches on different molecules. Isotope dilution experiments with deuterium show a dramatic dependence on the hydrogen mole fraction, which confirms the energy transfer picture. Timmer and Bakker have interpreted the experiments with a Förster incoherent hopping model, finding that energy transfer within the first solvation shell dominates the relaxation process. We have developed a microscopic theory of vibrational spectroscopy of water and ice, and herein we use this theory to calculate the anisotropy decay in ice as a function of hydrogen mole fraction. We obtain very good agreement with experiment. Interpretation of our results shows that four nearest-neighbor acceptors dominate the energy transfer, and that while the incoherent hopping picture is qualitatively correct, vibrational energy transport is partially coherent on the relevant timescale.

  4. Automatic identification of abstract online groups

    DOE Patents [OSTI]

    Engel, David W; Gregory, Michelle L; Bell, Eric B; Cowell, Andrew J; Piatt, Andrew W

    2014-04-15

    Online abstract groups, in which members aren't explicitly connected, can be automatically identified by computer-implemented methods. The methods involve harvesting records from social media and extracting content-based and structure-based features from each record. Each record includes a social-media posting and is associated with one or more entities. Each feature is stored on a data storage device and includes a computer-readable representation of an attribute of one or more records. The methods further involve grouping records into record groups according to the features of each record. Further still the methods involve calculating an n-dimensional surface representing each record group and defining an outlier as a record having feature-based distances measured from every n-dimensional surface that exceed a threshold value. Each of the n-dimensional surfaces is described by a footprint that characterizes the respective record group as an online abstract group.

  5. Automatic feed system for ultrasonic machining

    DOE Patents [OSTI]

    Calkins, Noel C. (Los Alamos, NM)

    1994-01-01

    Method and apparatus for ultrasonic machining in which feeding of a tool assembly holding a machining tool toward a workpiece is accomplished automatically. In ultrasonic machining, a tool located just above a workpiece and vibrating in a vertical direction imparts vertical movement to particles of abrasive material which then remove material from the workpiece. The tool does not contact the workpiece. Apparatus for moving the tool assembly vertically is provided such that it operates with a relatively small amount of friction. Adjustable counterbalance means is provided which allows the tool to be immobilized in its vertical travel. A downward force, termed overbalance force, is applied to the tool assembly. The overbalance force causes the tool to move toward the workpiece as material is removed from the workpiece.

  6. Fact #850: December 8, 2014 Automatic Transmissions have closed the Fuel Economy Gap with Manual Transmissions

    Broader source: Energy.gov [DOE]

    Historically, manual transmissions have delivered better fuel economy than automatic transmissions. However, improvements in the efficiency of automatic transmissions have closed that gap in recent...

  7. A radio air shower surface detector as an extension for IceCube and IceTop

    E-Print Network [OSTI]

    J. Auffenberg; T. Gaisser; K. Helbing; T. Huege; T. Karg; A. Karle

    2007-08-24

    The IceCube neutrino detector is built into the Antarctic ice sheet at the South Pole to measure high energy neutrinos. For this, 4800 photomultiplier tubes (PMTs) are being deployed at depths between 1450 and 2450 meters into the ice to measure neutrino induced charged particles like muons. IceTop is a surface air shower detector consisting of 160 Cherenkov ice tanks located on top of IceCube. To extend IceTop, a radio air shower detector could be built to significantly increase the sensitivity at higher shower energies and for inclined showers. As air showers induced by cosmic rays are a major part of the muonic background in IceCube, IceTop is not only an air shower detector, but also a veto to reduce the background in IceCube. Air showers are detectable by radio signals with a radio surface detector. The major emission process is the coherent synchrotron radiation emitted by e+ e- shower particles in the Earths magnetic field (geosynchrotron effect). Simulations of the expected radio signals of air showers are shown. The sensitivity and the energy threshold of different antenna field configurations are estimated.

  8. IceVeto: Extended PeV neutrino astronomy in the Southern Hemisphere with IceCube

    SciTech Connect (OSTI)

    Auffenberg, Jan; Collaboration: IceCube Collaboration

    2014-11-18

    IceCube, the world's largest high-energy neutrino observatory, built at the South Pole, recently reported evidence of an astrophysical neutrino flux extending to PeV energies in the Southern Hemisphere. This observation raises the question of how the sensitivity in this energy range could be further increased. In the down-going sector, in IceCube's case the Southern Hemisphere, backgrounds from atmospheric muons and neutrinos pose a challenge to the identification of an astrophysical neutrino flux. The IceCube analysis, that led to the evidence for astrophysical neutrinos, is based on an in-ice veto strategy for background rejection. One possibility available to IceCube is the concept of an extended surface detector, IceVeto, which could allow the rejection of a large fraction of atmospheric backgrounds, primarily for muons from cosmic ray (CR) air showers as well as from neutrinos in the same air showers. Building on the experience of IceTop/IceCube, possibly the most cost-effective and sensitive way to build IceVeto is as an extension of the IceTop detector, with simple photomultiplier based detector modules for CR air shower detection. Initial simulations and estimates indicate that such a veto detector will significantly increase the sensitivity to an astrophysical flux of ?{sub ?} induced muon tracks in the Southern Hemisphere compared to current analyses. Here we present the motivation and capabilities based on initial simulations. Conceptual ideas for a simplified surface array will be discussed briefly.

  9. ORIGINAL PAPER Sedimentary pellets as an ice-cover proxy in a High Arctic

    E-Print Network [OSTI]

    Vincent, Warwick F.

    ORIGINAL PAPER Sedimentary pellets as an ice-cover proxy in a High Arctic ice-covered lake Jessica-cover extent and dynamics on this perennially ice-covered, High Arctic lake. These pellets are interpreted growth. The pellets remain frozen in the ice until a summer or series of summers with reduced ice cover

  10. Glacial conditions that contribute to the regeneration of Fountain Glacier proglacial icing, Bylot Island, Canada

    E-Print Network [OSTI]

    Moorman, Brian

    Glacial conditions that contribute to the regeneration of Fountain Glacier proglacial icing, Bylot icings are one of the most common forms of extrusive ice found in the Canadian Arctic. However, the icing. Its regeneration depends on the availability of subglacial water and on the balance between ice

  11. Ising model for melt ponds on Arctic sea ice

    E-Print Network [OSTI]

    Ma, Y -P; Golden, K M

    2014-01-01

    The albedo of melting Arctic sea ice, a key parameter in climate modeling, is determined by pools of water on the ice surface. Recent observations show an onset of pond complexity at a critical area of about 100 square meters, attended by a transition in pond fractal dimension. To explain this behavior and provide a statistical physics approach to sea ice modeling, we introduce a two dimensional Ising model for pond evolution which incorporates ice-albedo feedback and the underlying thermodynamics. The binary magnetic spin variables in the Ising model correspond to the presence of melt water or ice on the sea ice surface. The model exhibits a second-order phase transition from isolated to clustered melt ponds, with the evolution of pond complexity in the clustered phase consistent with the observations.

  12. Meltwater effects on flow of Greenland's ice sheet less severe...

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

    Side effects of increasing meltwater less severe than feared Meltwater effects on flow of Greenland's ice sheet less severe for sea level rise than earlier feared, scientists...

  13. Sandia Energy - NASA Award for Marginal Ice Zone Observations...

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

    NASA Award for Marginal Ice Zone Observations and Process Experiment (MIZOPEX) Home Climate Office of Science News News & Events Research & Capabilities Monitoring Analysis...

  14. optimal initial conditions for coupling ice sheet models to earth...

    Office of Scientific and Technical Information (OSTI)

    optimal initial conditions for coupling ice sheet models to earth system models Perego, Mauro Sandia National Laboratories Sandia National Laboratories; Price, Stephen F. Dr...

  15. THE STICKINESS OF MICROMETER-SIZED WATER-ICE PARTICLES

    SciTech Connect (OSTI)

    Gundlach, B.; Blum, J.

    2015-01-01

    Water ice is one of the most abundant materials in dense molecular clouds and in the outer reaches of protoplanetary disks. In contrast to other materials (e.g., silicates), water ice is assumed to be stickier due to its higher specific surface energy, leading to faster or more efficient growth in mutual collisions. However, experiments investigating the stickiness of water ice have been scarce, particularly in the astrophysically relevant micrometer-sized region and at low temperatures. In this work, we present an experimental setup to grow aggregates composed of ?m-sized water-ice particles, which we used to measure the sticking and erosion thresholds of the ice particles at different temperatures between 114 K and 260 K. We show with our experiments that for low temperatures (below ?210 K), ?m-sized water-ice particles stick below a threshold velocity of 9.6 m s{sup –1}, which is approximately 10 times higher than the sticking threshold of ?m-sized silica particles. Furthermore, erosion of the grown ice aggregates is observed for velocities above 15.3 m s{sup –1}. A comparison of the experimentally derived sticking threshold with model predictions is performed to determine important material properties of water ice, i.e., the specific surface energy and the viscous relaxation time. Our experimental results indicate that the presence of water ice in the outer reaches of protoplanetary disks can enhance the growth of planetesimals by direct sticking of particles.

  16. Basal melt rates beneath Whillans Ice Stream, West Antarctica

    E-Print Network [OSTI]

    Beem, Lucas H.; Jezek, Ken C.; van der Veen, Cornelis J.

    2010-08-05

    and J.E. Mitchell. 1994. The role of the margins in the dynamics of an active ice stream. J. Glaciol., 40(136), 527–538. Engelhardt, H. 2004a. Ice temperature and high geothermal flux at Siple Dome, West Antarctica, from borehole measurements. J. Glaciol... ratio which varies laterally across the shear margin. Basal drag, ?b, basal velocity, U(b), basal temperature gradient, @T/@z(b), esti- mates of geothermal flux, G, plus knowledge of basal ice properties, density, ?, latent heat of fusion of ice, Li...

  17. IceCube: An Instrument for Neutrino Astronomy

    E-Print Network [OSTI]

    Halzen, F.

    2010-01-01

    detectors: searching for radio waves or for acoustic pulsespredictions 93 . In cold ice, radio-wave attenuation lengthperfect reflector for radio waves. With this reflection,

  18. Covered Product Category: Air-Cooled Ice Machines

    Broader source: Energy.gov [DOE]

    The Federal Energy Management Program (FEMP) provides acquisition guidance for air-cooled ice machines, which are covered by the ENERGY STAR program.

  19. Acceleration of Greenland ice mass loss in spring 2004

    E-Print Network [OSTI]

    Velicogna, I; Velicogna, I; Wahr, J

    2006-01-01

    10.1029/ 2005GL025550 (2006). Peltier, W. R. Global glacial2004). Tushingham, A. M. & Peltier, W. R. ICE-3G: A new

  20. IceCube: A Cubic Kilometer Radiation Detector

    E-Print Network [OSTI]

    Klein, S.; IceCube Collaboration

    2008-01-01

    Cubic Kilometer Radiation Detector The IceCube CollaborationA Cubic Kilometer Radiation Detector Spencer R. Klein, forlarge detector is to search for optical Cherenkov radiation

  1. ARM - Field Campaign - SGP Ice Nuclei Characterization Experiment

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

    and their impact on clouds and climate therefore remain relatively unconstrained. Soils of all types and plant surfaces are sources for ice nucleating particles that are...

  2. Reducing uncertainty in high-resolution sea ice models.

    SciTech Connect (OSTI)

    Peterson, Kara J.; Bochev, Pavel Blagoveston

    2013-07-01

    Arctic sea ice is an important component of the global climate system, reflecting a significant amount of solar radiation, insulating the ocean from the atmosphere and influencing ocean circulation by modifying the salinity of the upper ocean. The thickness and extent of Arctic sea ice have shown a significant decline in recent decades with implications for global climate as well as regional geopolitics. Increasing interest in exploration as well as climate feedback effects make predictive mathematical modeling of sea ice a task of tremendous practical import. Satellite data obtained over the last few decades have provided a wealth of information on sea ice motion and deformation. The data clearly show that ice deformation is focused along narrow linear features and this type of deformation is not well-represented in existing models. To improve sea ice dynamics we have incorporated an anisotropic rheology into the Los Alamos National Laboratory global sea ice model, CICE. Sensitivity analyses were performed using the Design Analysis Kit for Optimization and Terascale Applications (DAKOTA) to determine the impact of material parameters on sea ice response functions. Two material strength parameters that exhibited the most significant impact on responses were further analyzed to evaluate their influence on quantitative comparisons between model output and data. The sensitivity analysis along with ten year model runs indicate that while the anisotropic rheology provides some benefit in velocity predictions, additional improvements are required to make this material model a viable alternative for global sea ice simulations.

  3. optimal initial conditions for coupling ice sheet models to earth...

    Office of Scientific and Technical Information (OSTI)

    for coupling ice sheet models to earth system models Authors: Perego, Mauro 1 ; Price, Stephen F. Dr 2 ; Stadler, Georg 3 + Show Author Affiliations Sandia National...

  4. A METHOD FOR AIRCRAFT ICING DIAGNOSIS IN PRECIPITATION

    E-Print Network [OSTI]

    Fabry, Frederic

    A METHOD FOR AIRCRAFT ICING DIAGNOSIS IN PRECIPITATION François A. Turcotte Department precipitation event and its microphysics was simulated using a high resolution three-dimensional kinematic cloud

  5. Radiokrypton Dating Identifies Ancient Antarctic Ice | U.S. DOE...

    Office of Science (SC) Website

    Radiokrypton Dating Identifies Ancient Antarctic Ice Nuclear Physics (NP) NP Home About Research Facilities Science Highlights Benefits of NP Funding Opportunities Nuclear Science...

  6. The role of ice nuclei recycling in the maintenance of cloud ice in Arctic mixed-phase stratocumulus

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

    Solomon, A.; Feingold, G.; Shupe, M. D.

    2015-09-25

    This study investigates the maintenance of cloud ice production in Arctic mixed-phase stratocumulus in large eddy simulations that include a prognostic ice nuclei (IN) formulation and a diurnal cycle. Balances derived from a mixed-layer model and phase analyses are used to provide insight into buffering mechanisms that maintain ice in these cloud systems. We find that, for the case under investigation, IN recycling through subcloud sublimation considerably prolongs ice production over a multi-day integration. This effective source of IN to the cloud dominates over mixing sources from above or below the cloud-driven mixed layer. Competing feedbacks between dynamical mixing andmore »recycling are found to slow the rate of ice lost from the mixed layer when a diurnal cycle is simulated. The results of this study have important implications for maintaining phase partitioning of cloud ice and liquid that determine the radiative forcing of Arctic mixed-phase clouds.« less

  7. The role of ice nuclei recycling in the maintenance of cloud ice in Arctic mixed-phase stratocumulus

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

    Solomon, A.; Feingold, G.; Shupe, M. D.

    2015-04-21

    This study investigates the maintenance of cloud ice production in Arctic mixed phase stratocumulus in large-eddy simulations that include a prognostic ice nuclei (IN) formulation and a diurnal cycle. Balances derived from a mixed-layer model and phase analyses are used to provide insight into buffering mechanisms that maintain ice in these cloud systems. We find that for the case under investigation, IN recycling through subcloud sublimation considerably prolongs ice production over a multi-day integration. This effective source of IN to the cloud dominates over mixing sources from above or below the cloud-driven mixed layer. Competing feedbacks between dynamical mixing andmore »recycling are found to slow the rate of ice lost from the mixed layer when a diurnal cycle is simulated. The results of this study have important implications for maintaining phase partitioning of cloud ice and liquid that determine the radiative forcing of Arctic mixed-phase clouds.« less

  8. Effective stress profiles and seepage flows beneath glaciers and ice sheets

    E-Print Network [OSTI]

    Rempel, Alan W.

    stress for ice infiltration Qb Heat flux into glacier base Qf Heat produced by dissipation Qg Geothermal Vertical coordinate Exponent in permeability relation #12; Exponent in ice-saturation relation il Ice

  9. Analytical determination of performance degradation on a helicopter main rotor due to ice accretion 

    E-Print Network [OSTI]

    Camba, Javier

    1986-01-01

    artificial icing tests Canada's National Research Council (NRC) Icing Tunnel and simulated ice tests the OSU Transonic Airfoil Facility using a irfo'1 1 s inbicitave of current rotorcraft technol ogy. The final correlations are: Lift Increment Prediction...

  10. Incorporation of particulates into accreted ice above subglacial Vostok lake, Antarctica 

    E-Print Network [OSTI]

    Siegert, M. J.; Royston-Bishop, G.; Priscu, J. C.; Tranter, M.; Christner, B.; Lee, V.

    2005-01-01

    The nature of microscopic particulates in meteoric and accreted ice from the Vostok (Antarctica) ice core is assessed in conjunction with existing ice-core data to investigate the mechanism by which particulates are ...

  11. Modeling the evolution of polar ice sheets: Ice sheet system model workshop; Bergen, Norway, 2-4 June 2014

    E-Print Network [OSTI]

    Larour, E; Schlegel, N; Morlighem, M

    2014-01-01

    Model Workshop; Bergen, Norway, 2?4 June 2014 The Ice SheetUniversity of Bergen in Norway, in June 2014. This is the

  12. H2 ICE Combustion | Argonne National Laboratory

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration would likeUniverse (Journalvivo Low-Dose Lowď‚— WeUpdate JonGuided 8/12/15GuyH2 ICE Combustion

  13. Ice in Arctic Mixed-phase Stratocumulus

    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 (JournalvivoHighHussein KhalilResearch88 Sign In AboutWorkshop:Ice Nuclei

  14. Southern Great Plains Ice Nuclei Characterization Experiment

    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 Species3performedValleySouthern Great Plains Ice Nuclei

  15. Automatic target recognition apparatus and method

    DOE Patents [OSTI]

    Baumgart, Chris W. (Santa Fe, NM); Ciarcia, Christopher A. (Los Alamos, NM)

    2000-01-01

    An automatic target recognition apparatus (10) is provided, having a video camera/digitizer (12) for producing a digitized image signal (20) representing an image containing therein objects which objects are to be recognized if they meet predefined criteria. The digitized image signal (20) is processed within a video analysis subroutine (22) residing in a computer (14) in a plurality of parallel analysis chains such that the objects are presumed to be lighter in shading than the background in the image in three of the chains and further such that the objects are presumed to be darker than the background in the other three chains. In two of the chains the objects are defined by surface texture analysis using texture filter operations. In another two of the chains the objects are defined by background subtraction operations. In yet another two of the chains the objects are defined by edge enhancement processes. In each of the analysis chains a calculation operation independently determines an error factor relating to the probability that the objects are of the type which should be recognized, and a probability calculation operation combines the results of the analysis chains.

  16. Automatic record extraction for the World Wide Web

    E-Print Network [OSTI]

    Shen, Yuan Kui

    2006-01-01

    As the amount of information on the World Wide Web grows, there is an increasing demand for software that can automatically process and extract information from web pages. Despite the fact that the underlying data on most ...

  17. Safari: Function-level Power Analysis using Automatic Instrumentation

    E-Print Network [OSTI]

    Shi, Weisong

    Safari: Function-level Power Analysis using Automatic Instrumentation Shinan Wang, Youhuizi Li rather than power or energy. In addition, among the few available tools that estimate power dissipation

  18. Security Requirements for Classified Automatic Data Processing Systems

    Broader source: Directives, Delegations, and Requirements [Office of Management (MA)]

    1985-07-10

    To establish and describe the computer security program for classified automatic data processing (ADP) systems at the Department of Energy (DOE) Headquarters. This directive does not cancel another directive. Canceled by DOE N 251.9.

  19. Automatically Identifying Candidate Treatments from Existing Medical Literature

    E-Print Network [OSTI]

    Pratt, Wanda

    fish oil to treat Raynaud's disease (Swanson and Smalheiser 1997). Medical scientists are nowAutomatically Identifying Candidate Treatments from Existing Medical Literature Catherine Blake to transform the titles to known medical concepts, and the other applied additional semantic constraints

  20. Characterization of Speakers for Improved Automatic Speech Recognition 

    E-Print Network [OSTI]

    Lincoln, Michael

    Automatic speech recognition technology is becoming increasingly widespread in many applications. For dictation tasks, where a single talker is to use the system for long periods of time, the high recognition accuracies ...

  1. Install and Automatic Blowdown Control System - Steam Tip Sheet #23

    SciTech Connect (OSTI)

    2012-01-01

    This revised AMO steam tip sheet on installing automatic blowdown controls provide how-to advice for improving industrial steam systems using low-cost, proven practices and technologies.

  2. Preventing SQL Injection through Automatic Query Sanitization with ASSIST

    E-Print Network [OSTI]

    Mui, Raymond; 10.4204/EPTCS.35.3

    2010-01-01

    Web applications are becoming an essential part of our everyday lives. Many of our activities are dependent on the functionality and security of these applications. As the scale of these applications grows, injection vulnerabilities such as SQL injection are major security challenges for developers today. This paper presents the technique of automatic query sanitization to automatically remove SQL injection vulnerabilities in code. In our technique, a combination of static analysis and program transformation are used to automatically instrument web applications with sanitization code. We have implemented this technique in a tool named ASSIST (Automatic and Static SQL Injection Sanitization Tool) for protecting Java-based web applications. Our experimental evaluation showed that our technique is effective against SQL injection vulnerabilities and has a low overhead.

  3. Comparison of generality based algorithm variants for automatic taxonomy generation

    E-Print Network [OSTI]

    Madnick, Stuart E.

    We compare a family of algorithms for the automatic generation of taxonomies by adapting the Heymann-algorithm in various ways. The core algorithm determines the generality of terms and iteratively inserts them in a growing ...

  4. Comparison of Generality Based Algorithm Variants for Automatic Taxonomy Generation

    E-Print Network [OSTI]

    Henschel, Andreas

    We compare a family of algorithms for the automatic generation of taxonomies by adapting the Heymannalgorithm in various ways. The core algorithm determines the generality of terms and iteratively inserts them in a growing ...

  5. Automatic calibration of modulated fractional-N frequency synthesizers

    E-Print Network [OSTI]

    McMahill, Dan

    2001-01-01

    The focus of this research has been the development of a low power, radio frequency transmitter architecture. Specifically, a technique for in service automatic calibration of a modulated phase locked loop (PLL) frequency ...

  6. Using automatically collected data for bus service and operations planning

    E-Print Network [OSTI]

    Shireman, Matthew Thomas

    2011-01-01

    Transit agencies have traditionally used manual data to measure performance and plan service, but many transit agencies now fulfill these tasks by using automated data collection systems (ADCS), including Automatic Vehicle ...

  7. Automatic recognition codes for Intelligent Vehicle-Highway Systems 

    E-Print Network [OSTI]

    Leonardi, Pierre Charles Louis

    1994-01-01

    This thesis describes an automatic recognition code system designed for non-stop toll collection (part of Intelligent Vehicle-Highway Systems). The system uses Bose, Chaudhuri, and Hocquenghem (BCH) codes to encode the information. Each code...

  8. On formal and automatic security verification of WSN transport protocols

    E-Print Network [OSTI]

    International Association for Cryptologic Research (IACR)

    On formal and automatic security verification of WSN transport protocols Ta Vinh Thong1 thong, we address the problem of formal and automated security verification of WSN transport protocols

  9. Automatic dialogue act recognition using a dynamic Bayesian network 

    E-Print Network [OSTI]

    Dielmann, Alfred; Renals, Steve

    2007-01-01

    We propose a joint segmentation and classification approach for the dialogue act recognition task on natural multi-party meetings (ICSI Meeting Corpus). Five broad DA categories are automatically recognised using a generative Dynamic Bayesian...

  10. Automatic Annotation of Context and Speech Acts for Dialogue Corpora. 

    E-Print Network [OSTI]

    Kallirroi, Georgila; Lemon, Oliver; Henderson, James; Moore, Johanna D.

    annotated with contextual information and speech acts are urgently required. We explore how existing dialogue corpora (usually consisting of utterance transcriptions) can be automatically processed to yield new corpora where dialogue context and speech acts...

  11. Automatic labeling of contrastive word pairs from spontaneous spoken English 

    E-Print Network [OSTI]

    Leonardo Badino; Clark, Robert A J

    2008-01-01

    This paper addresses the problem of automatically labeling contrast in spontaneous spoken speech, where contrast here is meant as a relation that ties two words that explicitly contrast with each other. Detection of contrast is certainly relevant...

  12. Automatic topic segmentation and labeling in multiparty dialogue 

    E-Print Network [OSTI]

    Hsueh, Pei-Yun; Moore, Johanna D.

    2010-11-04

    This study concerns how to segment a scenario-driven multiparty dialogue and how to label these segments automatically. We apply approaches that have been proposed for identifying topic boundaries at a coarser level to ...

  13. Automatic Insertion of DPA Countermeasures Andrew Moss1

    E-Print Network [OSTI]

    International Association for Cryptologic Research (IACR)

    . Automatic resolution of said threat is now an emerging research theme and, alongside more theoretical re logical netlist can replace standard cells with a secure logic style equivalent (e.g. WDDL [6]) before

  14. Automatically clustering similar units for unit selection in speech synthesis. 

    E-Print Network [OSTI]

    Black, Alan W; Taylor, Paul A

    1997-01-01

    This paper describes a new method for synthesizing speech by concatenating sub-word units from a database of labelled speech. A large unit inventory is created by automatically clustering units of the same phone class ...

  15. Learning to tell tales: automatic story generation from Corpora 

    E-Print Network [OSTI]

    McIntyre, Neil Duncan

    2011-06-30

    Automatic story generation has a long-standing tradition in the field of Artificial Intelligence. The ability to create stories on demand holds great potential for entertainment and education. For example, modern computer ...

  16. VEE-0043- In the Matter of Greenville Automatic Gas Company

    Broader source: Energy.gov [DOE]

    On March 11, 1997, Greenville Automatic Gas Company (Greenville) filed an Application for Exception with the Office of Hearings and Appeals (OHA) of the Department of Energy (DOE). In its...

  17. Automatic Structures: Richness and Limitations Bakhadyr Khoussainov # , Andre Nies + , Sasha Rubin # and Frank Stephan

    E-Print Network [OSTI]

    Stephan, Frank

    Automatic Structures: Richness and Limitations Bakhadyr Khoussainov # , Andrâ??e Nies + , Sasha Rubin structures. An automatic presentation of a structure is a description of the universe of the structure concerns char­ acterising classes of automatic structures. We supply a characterisation of the automatic

  18. A PROCEDURE OF AN AUTOMATIC GRAPHE~E-TO-PHO~ TRANSFORHATION OF GERMAN

    E-Print Network [OSTI]

    , Ingrid Starke Zentralinstitut fur Sprachwissenschaft, AdW DDR, Berlin, DDR The automatic transformation

  19. Algorithms for the Automatic Identification of MARFEs and UFOs in JET Database of Visible Camera Videos

    E-Print Network [OSTI]

    Algorithms for the Automatic Identification of MARFEs and UFOs in JET Database of Visible Camera Videos

  20. Automatic Parallelization of Classification Systems based on Support Vector Machines: Comparison and Application to JET Database

    E-Print Network [OSTI]

    Automatic Parallelization of Classification Systems based on Support Vector Machines: Comparison and Application to JET Database

  1. Automatic S-acts and inverse semigroup presentations Erzsebet Rita Dombi

    E-Print Network [OSTI]

    St Andrews, University of

    Automatic S-acts and inverse semigroup presentations Erzs´ebet Rita Dombi Ph.D. Thesis University.3 Automatic groups and semigroups . . . . . . . . . . . . . . . . . . . . . . . 14 3 Automatic semigroup acts.2 Sch¨utzenberger automatic regular semigroups . . . . . . . . . . . . . . . . . 25 3.3 Examples

  2. Automatic Search of Attacks on round-reduced AES and Applications

    E-Print Network [OSTI]

    International Association for Cryptologic Research (IACR)

    Automatic Search of Attacks on round-reduced AES and Applications Charles Bouillaguet, Patrick of these tools, we show that they allow to automatically discover new attacks on round-reduced AES with very low to find better attacks, new automatic tools have been designed to automatically search either related

  3. An automatic control system for a laboratory precipitation process 

    E-Print Network [OSTI]

    Burnett, Mary Alice

    1986-01-01

    AN AUTOMATIC CONTROL SYSTEM FOR A LABORATORY PRECIPITATION PROCESS A Thesis by MARY ALICE BURNETT Submitted to the Graduate College of Texas A 8 M University in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE May... 1986 Major Subject: Civil Engineering AN AUTOMATIC CONTROL SYSTEM FOR A LABORATORY PRECIPITATION PROCESS A Thesis MARY ALICE BURNETT Approved as to style and content by: Bill Batchelor (Chairman of Committee) Donald L. Reddell (Member) J...

  4. THE CONTRIBUTION OF GREENLAND ICE SHEET MELTING TO

    E-Print Network [OSTI]

    THE CONTRIBUTION OF GREENLAND ICE SHEET MELTING TO GLOBAL SEA-LEVEL CHANGE Conor Mc, orbital cycles, glacial isostatic adjustment and tectonics. Each of these elements contribute different it to be directly observed. This project examined the contribution to sea-level change due to melting of ice from

  5. IceCube Project Monthly Report November 2007

    E-Print Network [OSTI]

    Saffman, Mark

    the current budgets or the budgets modified by the cost performance index. Change Log - IceCube Total Project IceCube array with a detector uptime of 97%, above the internal monthly goal of 95%. #12;Cost design, development, procured materials, and the construction of the infrastructure that supports

  6. Integrated navigation for AUV operations under ice shelves

    E-Print Network [OSTI]

    Griffiths, Gwyn

    2000 Heat Wipes Out Giant Antarctic Ice Shelf The Independent, 31 January 2000 Catastrophic Melting VI Pine Island Bay #12;The (virtual) mission ... #12;The first mission- March 2003: Pine Island Bay NASA 30 km Sea Ice Pine Island Glacier Open Water 9 February 2003 #12;The Pine Island Bay Glacier

  7. ENERGY BASED ICE COLLISION FORCES Claude Daley1

    E-Print Network [OSTI]

    Daley, Claude

    1 ENERGY BASED ICE COLLISION FORCES Claude Daley1 1 Memorial University of Newfoundland, St. John's, Newfoundland, Canada A1C 3X5 ABSTRACT Ice collision forces can be determined by energy considerations. A variety of interaction geometry cases are considered. The indentation energy functions for eight different

  8. ENERGY BASED ICE COLLISION FORCES Claude Daley1

    E-Print Network [OSTI]

    Daley, Claude

    ENERGY BASED ICE COLLISION FORCES Claude Daley1 1 Memorial University of Newfoundland, St. John's, Newfoundland, Canada A1C 3X5 ABSTRACT Ice collision forces can be determined by energy considerations. A variety of interaction geometry cases are considered. The indentation energy functions for eight different

  9. ORIGINAL ARTICLE Diatom assemblages promote ice formation in large

    E-Print Network [OSTI]

    Lee Jr., Richard E.

    (Oyserman et al., 2012; Twiss et al., 2012). Conducted during times of expansive ice cover, these surveys (Saxton et al., 2012; Twiss et al., 2012). The physical processes involved in the develop- ment of diatom demonstrated the presence of viable diatoms in meltwater from lake ice (Twiss et al., 2012), consistent

  10. Passive ice freezing-releasing heat pipe. [Patent application

    DOE Patents [OSTI]

    Gorski, A.J.; Schertz, W.W.

    1980-09-29

    A heat pipe device has been developed which permits completely passive ice formation and periodic release of ice without requiring the ambient temperature to rise above the melting point of water. This passive design enables the maximum amount of cooling capacity to be stored in the tank.

  11. Ice Storm Damage Greater Along the Terrestrial-Aquatic Interface

    E-Print Network [OSTI]

    Kraft, Clifford E.

    Ice Storm Damage Greater Along the Terrestrial-Aquatic Interface in Forested Landscapes Andrew A- tems. In 1998, a severe ice storm damaged over ten million hectares of forest across northern New York investigated the spatial arrangement of forest damage at the terrestrial-aquatic interface, an ecological edge

  12. Fluid Migration During Ice/Rock Planetesimal Differentiation 

    E-Print Network [OSTI]

    Raney, Robert 1987-

    2012-12-12

    fast melt water can segregate from the core of an ice-rich planetesimal. To answer this question we treat the core as two phase flow problem: a compacting viscous “solid” (ice/rock mixture) and a segregating liquid (melt water). The model developed...

  13. Third international workshop on ice storage for cooling applications

    SciTech Connect (OSTI)

    Gorski, A.J.

    1986-04-01

    The third international workshop on ice storage for cooling applications which was informal and interactive in nature, was open to persons interested in all ice-growing technologies and in ice storage, both seasonal and diurnal. Presentations were made on some 20 topics, ranging from freezers in Alaska to ice cooling of commercial jet aircraft. Workshop tours included visits to ice-storage systems at Commonwealth Edison's facilities in Bolingbrook and Des Plaines Valley, the A.C. Neilsen builing in Northbrook, and the new State of Illinois Center in Chicago. The first workshop in the present series considered the future of ice storage and predicted applications in the agricultural sector, desalinization, and commercial ice production. Progress has been rapid in the intervening two years, and an important topic at the third workshop was the possible use of ''warm ices'' (clathrate hydrates) for energy storage. This report consists primarily of abstracts of presentations made at the workshop. Persons wishing to obtain further information about particular papers should contact the speakers directly; speakers' addresses and telephone numbers are listed in this report.

  14. Has the ice man arrived? Tact on the Internet

    E-Print Network [OSTI]

    Hearst, Marti

    Has the ice man arrived? Tact on the Internet Jonathan Grudin, UC Irvine and Microsoft Research resides in this extremely efficient spread of information. It is efficient, but it is not dis- crete. Eugene O'Neill's play The Ice Man Cometh outlines a series of calamities that occur when his characters

  15. CO diffusion into amorphous H2O ices

    E-Print Network [OSTI]

    Lauck, Trish; Shulenberger, Katherine; Rajappan, Mahesh; Oberg, Karin I; Cuppen, Herma M

    2015-01-01

    The mobility of atoms, molecules and radicals in icy grain mantles regulate ice restructuring, desorption, and chemistry in astrophysical environments. Interstellar ices are dominated by H2O, and diffusion on external and internal (pore) surfaces of H2O-rich ices is therefore a key process to constrain. This study aims to quantify the diffusion kinetics and barrier of the abundant ice constituent CO into H2O dominated ices at low temperatures (15-23 K), by measuring the mixing rate of initially layered H2O(:CO2)/CO ices. The mixed fraction of CO as a function of time is determined by monitoring the shape of the infrared CO stretching band. Mixing is observed at all investigated temperatures on minute time scales, and can be ascribed to CO diffusion in H2O ice pores. The diffusion coefficient and final mixed fraction depend on ice temperature, porosity, thickness and composition. The experiments are analyzed by applying Fick's diffusion equation under the assumption that mixing is due to CO diffusion into an i...

  16. UV Irradiation of Polycyclic Aromatic Hydrocarbons in Ices

    E-Print Network [OSTI]

    UV Irradiation of Polycyclic Aromatic Hydrocarbons in Ices: Production of Alcohols, Quinones. Clemett,3 Richard N. Zare3 Polycyclic aromatic hydrocarbons (PAHs) in water ice were exposed to ultra, and ethers, and reduced, producing partially hydrogenated aromatic hydrocarbons, molecules that account

  17. Methods and apparatus for rotor blade ice detection

    DOE Patents [OSTI]

    LeMieux, David Lawrence

    2006-08-08

    A method for detecting ice on a wind turbine having a rotor and one or more rotor blades each having blade roots includes monitoring meteorological conditions relating to icing conditions and monitoring one or more physical characteristics of the wind turbine in operation that vary in accordance with at least one of the mass of the one or more rotor blades or a mass imbalance between the rotor blades. The method also includes using the one or more monitored physical characteristics to determine whether a blade mass anomaly exists, determining whether the monitored meteorological conditions are consistent with blade icing; and signaling an icing-related blade mass anomaly when a blade mass anomaly is determined to exist and the monitored meteorological conditions are determined to be consistent with icing.

  18. THE PHASES OF WATER ICE IN THE SOLAR NEBULA

    SciTech Connect (OSTI)

    Ciesla, Fred J.

    2014-03-20

    Understanding the phases of water ice that were present in the solar nebula has implications for understanding cometary and planetary compositions as well as the internal evolution of these bodies. Here we show that amorphous ice formed more readily than previously recognized, with formation at temperatures <70 K being possible under protoplanetary disk conditions. We further argue that photodesorption and freeze-out of water molecules near the surface layers of the solar nebula would have provided the conditions needed for amorphous ice to form. This processing would be a natural consequence of ice dynamics and would allow for the trapping of noble gases and other volatiles in water ice in the outer solar nebula.

  19. Field demonstration of the ICE 250{trademark} Cleaning System

    SciTech Connect (OSTI)

    Johnston, J.L.; Jackson, L.M.

    1999-10-05

    The ICE 250{trademark} Cleaning System was engineered to convert water into small ice particles for use in cleaning and decontamination applications. Ice crystals are produced in a special icemaker and pressured through a hose-nozzle onto the surface to be cleaned. The Rocky Mountain Oilfield Testing Center and Ice Cleaning Systems, Inc., conducted a test of this system at Naval Petroleum Reserve No. 3 to evaluate the system's cleaning capabilities in an oil field environment. Equipment cleaned included an oil storage tank, a rod pumping unit, a road grader, and a wellhead. Contaminants were unrefined sour crude oil, hydraulic fluid, paraffin, and dirt, occurring separately and as mixtures. In all four demonstration cleaning tasks, the ICE 250 System effectively removed surface contaminant mixtures in a timely manner and left no oily residue. A minimal amount of waste moisture was generated, thereby reducing cleanup and disposal costs.

  20. k-AUTOMATIC SETS OF RATIONAL NUMBERS ERIC ROWLAND AND JEFFREY SHALLIT

    E-Print Network [OSTI]

    Rowland, Eric

    k-AUTOMATIC SETS OF RATIONAL NUMBERS ERIC ROWLAND AND JEFFREY SHALLIT Abstract. The notion of a k-automatic set of integers is well-studied. We develop a new notion -- the k-automatic set of rational numbers S N is k-automatic if there exists a regular language L k such that S = [L]k. The class of k-automatic

  1. Motivation Overview Automatic Segmentation Algorithm Building Colour Models Volumetric Graph-Cut Results Conclusion Automatic 3D Object Segmentation in Multiple

    E-Print Network [OSTI]

    Esteban, Carlos Hernández

    Motivation Overview Automatic Segmentation Algorithm Building Colour Models Volumetric Graph Segmentation in Multiple Views using Volumetric Graph-Cuts #12;Motivation Overview Automatic Segmentation Algorithm Building Colour Models Volumetric Graph-Cut Results Conclusion Motivation Neill Campbell, George

  2. The future of water, ice, snow underThe future of water, ice, snow under global warmingglobal warming

    E-Print Network [OSTI]

    Hurricane Katrina, the Kerry--Gingrich debate over globalGingrich debate over global warming, the local and regional warming.effects of global warming. Climate extends beyond temperature and rainfall, toClimate extendsThe future of water, ice, snow underThe future of water, ice, snow under global warmingglobal

  3. Observations of ice thickness and frazil ice in the St. Lawrence Island polynya from satellite imagery, upward looking sonar, and

    E-Print Network [OSTI]

    Washington at Seattle, University of

    with meteorological observations and a heat flux model. South of the island, we compare the ULS and thermalObservations of ice thickness and frazil ice in the St. Lawrence Island polynya from satellite, this paper examines the behavior of the Bering Sea St. Lawrence Island polynya using a combination

  4. Results from IceCube Mumbai, 11/12/12 Tom Gaisser for the IceCube Collab. 1

    E-Print Network [OSTI]

    Gaisser, Thomas K.

    Results from IceCube Mumbai, 11/12/12 Tom Gaisser for the IceCube Collab. 1 #12;2 39 Ins>tu>ons ~220 collaborators Mumbai, 11/12/12 Tom Gaisser-10 20 79 2010-11 7 86 Mumbai, 11/12/12 Tom Gaisser

  5. CO2 diffusion in polar ice: observations from naturally formed CO2 spikes in the Siple Dome (Antarctica) ice core

    E-Print Network [OSTI]

    Raggio Parkway, Reno, Nevada 89512-1095, USA ABSTRACT. One common assumption in interpreting ice-core CO2 records is that diffusion in the ice does not affect the concentration profile. However, this assumption/Ar and Kr/Ar), electrical conductivity and Ca2+ ion concentrations to show that substantial CO2 diffusion

  6. Sea ice in the paleoclimate system: the challenge of reconstructing sea ice from proxies e an introduction

    E-Print Network [OSTI]

    University, Denmark e Department of Earth Sciences, University of Cambridge, UK f British Antarctic Survey. In the climate system, sea ice cover generally acts as an amplifier: it in- fluences the energy budget). Under perennial sea ice there is generally little primary production apart from under special conditions

  7. Air conditioning system with supplemental ice storing and cooling capacity

    DOE Patents [OSTI]

    Weng, Kuo-Lianq (Taichung, TW); Weng, Kuo-Liang (Taichung, TW)

    1998-01-01

    The present air conditioning system with ice storing and cooling capacity can generate and store ice in its pipe assembly or in an ice storage tank particularly equipped for the system, depending on the type of the air conditioning system. The system is characterized in particular in that ice can be produced and stored in the air conditioning system whereby the time of supplying cooled air can be effectively extended with the merit that the operation cycle of the on and off of the compressor can be prolonged, extending the operation lifespan of the compressor in one aspect. In another aspect, ice production and storage in great amount can be performed in an off-peak period of the electrical power consumption and the stored ice can be utilized in the peak period of the power consumption so as to provide supplemental cooling capacity for the compressor of the air conditioning system whereby the shift of peak and off-peak power consumption can be effected with ease. The present air conditioning system can lower the installation expense for an ice-storing air conditioning system and can also be applied to an old conventional air conditioning system.

  8. Photodesorption of ices I: CO, N2 and CO2

    E-Print Network [OSTI]

    Karin I. Oberg; Ewine F. van Dishoeck; Harold Linnartz

    2009-01-23

    A longstanding problem in astrochemistry is how molecules can be maintained in the gas phase in dense inter- and circumstellar regions. Photodesorption is a non-thermal desorption mechanism, which may explain the small amounts of observed cold gas in cloud cores and disk mid-planes. This paper aims to determine the UV photodesorption yields and to constrain the photodesorption mechanisms of three astrochemically relevant ices: CO, N2 and CO2. In addition, the possibility of co-desorption in mixed and layered CO:N2 ices is explored. The ice photodesorption is studied experimentally under ultra high vacuum conditions and at 15-60 K using a hydrogen discharge lamp (7-10.5 eV). The ice desorption during irradiation is monitored by reflection absorption infrared spectroscopy of the ice and simultaneous mass spectrometry of the desorbed molecules. Both the UV photodesorption yields per incident photon and the photodesorption mechanisms are molecule specific. CO photodesorbs without dissociation from the surface layer of the ice. N2, which lacks an electronic transition in this wavelength range, has a photodesorption yield that is more than an order of magnitude lower. This yield increases significantly due to co-desorption when N2 is mixed in with or layered on top of CO ice. CO2 photodesorbs through dissociation and subsequent recombination from the top 10 layers of the ice. At low temperatures (15-18 K) the derived photodesorption yields are 2.7x10^-3 and CO2 photodesorption yield is 1.2x10^-3x(1-e^(-X/2.9)) + 1.1x10^-3x(1-e^(-X/4.6)) molecules photon-1, where X is the ice thickness in monolayers and the two parts of the expression represent a CO2 and CO photodesorption pathway.

  9. Gas ageice age differences and the chronology of the Vostok ice core, M. L. Bender,1

    E-Print Network [OSTI]

    Chappellaz, Jérôme

    Gas age­ice age differences and the chronology of the Vostok ice core, 0­100 ka M. L. Bender,1 G. [1] Gas is trapped in polar ice at depths of $50­120 m and is therefore significantly younger than cores (Vostok, Dome Fuji, and Dome C). We recorrelate the gas records of Vostok and Greenland Ice Sheet

  10. Fast numerical method for growth and retreat of subsurface ice on Mars Norbert Schorghofer

    E-Print Network [OSTI]

    Schörghofer, Norbert

    ice, retreat of pore ice, retreat of an ice sheet, and retreat of pore ice due to geothermal heating) Dtexpl: vertical spatial resolution and D the diffusion coef- ficient. The vertical grid spacing needs to be finer than the diurnal skin depth of the temperature cycle. The diurnal

  11. Modelling the reorientation of sea-ice faults as the wind changes direction

    E-Print Network [OSTI]

    Feltham, Daniel

    Modelling the reorientation of sea-ice faults as the wind changes direction Alexander V. WILCHINSKY-1290, USA ABSTRACT. A discrete-element model of sea ice is used to study how a 908 change in wind direction alters the pattern of faults generated through mechanical failure of the ice. The sea-ice domain is 400

  12. Development, sensitivity analysis, and uncertainty quantification of high-fidelity arctic sea ice models.

    SciTech Connect (OSTI)

    Peterson, Kara J.; Bochev, Pavel Blagoveston; Paskaleva, Biliana S.

    2010-09-01

    Arctic sea ice is an important component of the global climate system and due to feedback effects the Arctic ice cover is changing rapidly. Predictive mathematical models are of paramount importance for accurate estimates of the future ice trajectory. However, the sea ice components of Global Climate Models (GCMs) vary significantly in their prediction of the future state of Arctic sea ice and have generally underestimated the rate of decline in minimum sea ice extent seen over the past thirty years. One of the contributing factors to this variability is the sensitivity of the sea ice to model physical parameters. A new sea ice model that has the potential to improve sea ice predictions incorporates an anisotropic elastic-decohesive rheology and dynamics solved using the material-point method (MPM), which combines Lagrangian particles for advection with a background grid for gradient computations. We evaluate the variability of the Los Alamos National Laboratory CICE code and the MPM sea ice code for a single year simulation of the Arctic basin using consistent ocean and atmospheric forcing. Sensitivities of ice volume, ice area, ice extent, root mean square (RMS) ice speed, central Arctic ice thickness, and central Arctic ice speed with respect to ten different dynamic and thermodynamic parameters are evaluated both individually and in combination using the Design Analysis Kit for Optimization and Terascale Applications (DAKOTA). We find similar responses for the two codes and some interesting seasonal variability in the strength of the parameters on the solution.

  13. A Model of Viscoelastic Ice-Shelf Flexure

    E-Print Network [OSTI]

    MacAyeal, Douglas R.; Sergienko, Olga V.; Banwell, Alison F.

    2015-07-15

    -shelf and ice-stream motion and stress fields. Examples of these phenomena27 include tide-driven grounding-line flexure and migration [e.g., Sayag and Worster, 2013, Tsai and28 Gudmundsson, 2015], tidally pulsed grounding line ice velocity variations [e... -shelf flexure that is applicable to circumstances where the114 ratio of vertical to horizontal length scales, H and L, respectively, is small (H/L ? 1), and where115 the vertical displacement (assumed constant through the depth of the ice shelf) due to flexure...

  14. Microphysical Consequences of the Spatial Distribution of Ice Nucleation in Mixed-Phase Stratiform Clouds

    SciTech Connect (OSTI)

    Yang, Fan; Ovchinnikov, Mikhail; Shaw, Raymond A.

    2014-07-28

    Mixed-phase stratiform clouds can persist even with steady ice precipitation fluxes, and the origin and microphysical properties of the ice crystals are of interest. Vapor deposition growth and sedimentation of ice particles along with a uniform volume source of ice nucleation, leads to a power law relation between ice water content wi and ice number concentration ni with exponent 2.5. The result is independent of assumptions about the vertical velocity structure of the cloud and is therefore more general than the related expression of Yang et al. [2013]. The sensitivity of the wi-ni relationship to the spatial distribution of ice nucleation is confirmed by Lagrangian tracking and ice growth with cloud-volume, cloud-top, and cloud-base sources of ice particles through a time-dependent cloud field. Based on observed wi and ni from ISDAC, a lower bound of 0.006 m^3/s is obtained for the ice crystal formation rate.

  15. Minimalist Model of Ice Microphysics in Mixed-phase Stratiform Clouds

    SciTech Connect (OSTI)

    Yang, F.; Ovchinnikov, Mikhail; Shaw, Raymond A.

    2013-07-28

    The question of whether persistent ice crystal precipitation from super cooled layer clouds can be explained by time-dependent, stochastic ice nucleation is explored using an approximate, analytical model, and a large-eddy simulation (LES) cloud model. The updraft velocity in the cloud defines an accumulation zone, where small ice particles cannot fall out until they are large enough, which will increase the residence time of ice particles in the cloud. Ice particles reach a quasi-steady state between growth by vapor deposition and fall speed at cloud base. The analytical model predicts that ice water content (wi) has a 2.5 power law relationship with ice number concentration ni. wi and ni from a LES cloud model with stochastic ice nucleation also confirm the 2.5 power law relationship. The prefactor of the power law is proportional to the ice nucleation rate, and therefore provides a quantitative link to observations of ice microphysical properties.

  16. THE STRUCTURE OF SURFACE H{sub 2}O LAYERS OF ICE-COVERED PLANETS WITH HIGH-PRESSURE ICE

    SciTech Connect (OSTI)

    Ueta, S.; Sasaki, T. E-mail: takanori@geo.titech.ac.jp

    2013-10-01

    Many extrasolar (bound) terrestrial planets and free-floating (unbound) planets have been discovered. While the existence of bound and unbound terrestrial planets with liquid water is an important question, of particular importance is the question of these planets' habitability. Even for a globally ice-covered planet, geothermal heat from the planetary interior may melt the interior ice, creating an internal ocean covered by an ice shell. In this paper, we discuss the conditions that terrestrial planets must satisfy for such an internal ocean to exist on the timescale of planetary evolution. The question is addressed in terms of planetary mass, distance from a central star, water abundance, and abundance of radiogenic heat sources. In addition, we investigate the structure of the surface H{sub 2}O layers of ice-covered planets by considering the effects of ice under high pressure (high-pressure ice). As a fiducial case, a 1 M{sub ?} planet at 1 AU from its central star and with 0.6-25 times the H{sub 2}O mass of the Earth could have an internal ocean. We find that high-pressure ice layers may appear between the internal ocean and the rock portion on a planet with an H{sub 2}O mass over 25 times that of the Earth. The planetary mass and abundance of surface water strongly restrict the conditions under which an extrasolar terrestrial planet may have an internal ocean with no high-pressure ice under the ocean. Such high-pressure ice layers underlying the internal ocean are likely to affect the habitability of the planet.

  17. Ice Concentration Retrieval in Stratiform Mixed-phase Clouds Using Cloud Radar Reflectivity Measurements and 1D Ice Growth Model Simulations

    SciTech Connect (OSTI)

    Zhang, Damao; Wang, Zhien; Heymsfield, Andrew J.; Fan, Jiwen; Luo, Tao

    2014-10-01

    Measurement of ice number concentration in clouds is important but still challenging. Stratiform mixed-phase clouds (SMCs) provide a simple scenario for retrieving ice number concentration from remote sensing measurements. The simple ice generation and growth pattern in SMCs offers opportunities to use cloud radar reflectivity (Ze) measurements and other cloud properties to infer ice number concentration quantitatively. To understand the strong temperature dependency of ice habit and growth rate quantitatively, we develop a 1-D ice growth model to calculate the ice diffusional growth along its falling trajectory in SMCs. The radar reflectivity and fall velocity profiles of ice crystals calculated from the 1-D ice growth model are evaluated with the Atmospheric Radiation Measurements (ARM) Climate Research Facility (ACRF) ground-based high vertical resolution radar measurements. Combining Ze measurements and 1-D ice growth model simulations, we develop a method to retrieve the ice number concentrations in SMCs at given cloud top temperature (CTT) and liquid water path (LWP). The retrieved ice concentrations in SMCs are evaluated with in situ measurements and with a three-dimensional cloud-resolving model simulation with a bin microphysical scheme. These comparisons show that the retrieved ice number concentrations are within an uncertainty of a factor of 2, statistically.

  18. 1 | De-icing salt damage to trees | November 2011 Pathology Advisory Note

    E-Print Network [OSTI]

    1 | De-icing salt damage to trees | November 2011 Pathology Advisory Note (No. 11) De-icing salt damage to trees De-icing Salt Damage to Trees Joan F Webber, David R Rose, Martin C Dobson #12;2 | De-icing salt damage to trees | November 2011 S a l t D a m a g e De-icing Salt Damage Introduction Rock salt

  19. Autosub missions beneath Polar Ice: Preparation and Experience

    E-Print Network [OSTI]

    Griffiths, Gwyn

    events implemented (up from 1); ordered sequences of events to trigger next mission element added. J and shelf ice. 4 - 12 kHz chirp sub-bottom profiler to obtain the stratigraphy within sediments Water

  20. Hydrological and biogeochemical cycling along the Greenland ice sheet margin

    E-Print Network [OSTI]

    Bhatia, Maya Pilar, 1979-

    2012-01-01

    Global warming has led to a significant increase in Greenland ice sheet (GrIS) melt and runoff since 1990, resulting in escalated export of fresh water and associated sediment to the surrounding North Atlantic and Arctic ...

  1. Intelligent Matchmaking for Polar Ice Sheet Data Collection and Delivery

    E-Print Network [OSTI]

    Kansas, University of

    for the dynamic configuration of sensors and the motion of the rovers that carry them. The PRISM intelligent intelligent sensor and roveIntelligent Matchmaking for Polar Ice Sheet Data Collection and Delivery Costas Tsatsoulis, Sudha

  2. Neutrino Physics with the IceCube Detector

    E-Print Network [OSTI]

    Kiryluk, Joanna; IceCube Collaboration

    2008-01-01

    Science, O?ce of Nu- clear Physics, of the U.S. Departmentjkiryluk?lake?louise?lbl NEUTRINO PHYSICS WITH THE ICECUBESNRs). Other IceCube physics topics include searches for

  3. Periodic fluctuations in deep water formation due to sea ice

    E-Print Network [OSTI]

    Saha, Raj

    2015-01-01

    During the last ice age several quasi-periodic abrupt warming events took place. Known as Dansgaard-Oeschger (DO) events their effects were felt globally, although the North Atlantic experienced the largest temperature anomalies. Paleoclimate data shows that the fluctuations often occurred right after massive glacial meltwater releases in the North Atlantic and in bursts of three or four with progressively decreasing strengths. In this study a simple dynamical model of an overturning circulation and sea ice is developed with the goal of understanding the fundamental mechanisms that could have caused the DO events. Interaction between sea ice and the overturning circulation in the model produces self-sustained oscillations. Analysis and numerical experiments reveal that the insulating effect of sea ice causes the ocean to periodically vent out accumulated heat in the deep ocean into the atmosphere. Subjecting the model to idealized freshwater forcing mimicking Heinrich events causes modulation of the natural p...

  4. Immersion freezing of clay minerals and bacterial ice nuclei

    E-Print Network [OSTI]

    Hiranuma, Naruki

    2013-01-01

    The immersion mode ice nucleation efficiency of clay minerals and biological aerosols has been investigated using the AIDA (Aerosol Interaction and Dynamics in the Atmosphere) cloud chamber. Both monodisperse and polydisperse ...

  5. Interface limited growth of heterogeneously nucleated ice in supercooled water

    E-Print Network [OSTI]

    Razvan A. Nistor; Thomas E. Markland; B. J. Berne

    2013-12-30

    Heterogeneous ice growth exhibits a maximum in freezing rate arising from the competition between kinetics and the thermodynamic driving force between the solid and liquid states. Here, we use molecular dynamics simulations to elucidate the atomistic details of this competition, focusing on water properties in the interfacial region along the secondary prismatic direction. The crystal growth velocity is maximized when the efficiency of converting interfacial water molecules to ice, collectively known as the attachment kinetics, is greatest. We find water molecules that contact the intermediate ice layer in concave regions along the atomistically roughened surface are more likely to freeze directly. The increased roughening of the solid surface at large undercoolings consequently plays an important limiting role on the rate of ice growth, as water molecules are unable to integrate into increasingly deeper surface pockets. These results provide insights into the molecular mechanisms for self-assembly of solid phases that are important in many biological and atmospheric processes.

  6. Psychology General Of1ice P217 Biological Sciences Building

    E-Print Network [OSTI]

    Machel, Hans

    Psychology General Of1ice P217 Biological Sciences Building Edmonton, Alberta. Robert Cook ----------------------------------------------- Professor of Psychology Dean in 1986, when he joined the Department of Psychology as an assistant

  7. Thermal desorption of CH4 retained in CO2 ice

    E-Print Network [OSTI]

    Luna, R; Domingo, M; Satorre, M A

    2008-01-01

    CO2 ices are known to exist in different astrophysical environments. In spite of this, its physical properties (structure, density, refractive index) have not been as widely studied as those of water ice. It would be of great value to study the adsorption properties of this ice in conditions related to astrophysical environments. In this paper, we explore the possibility that CO2 traps relevant molecules in astrophysical environments at temperatures higher than expected from their characteristic sublimation point. To fulfil this aim we have carried out desorption experiments under High Vacuum conditions based on a Quartz Crystal Microbalance and additionally monitored with a Quadrupole Mass Spectrometer. From our results, the presence of CH4 in the solid phase above the sublimation temperature in some astrophysical scenarios could be explained by the presence of several retaining mechanisms related to the structure of CO2 ice.

  8. Oil spreading in surface waters with an ice cover

    SciTech Connect (OSTI)

    Yapa, P.D.; Weerasuriya, S.A.; Belaskas, D.P.; Chowdhury, T.

    1993-02-01

    A study of oil spreading in surface waters in the presence of a floating ice cover is presented. The ice can be solid or fragmented. Both axi-symmetrical and uni-directional spreading are studied. The report describes the analytical and numerical model development, the experimental set-up, results from the laboratory experiments, and their comparison with the derived theory and the numerical simulation. To analyze the spreading of oil under solid ice, new equations are derived. These equations consider gravity (buoyancy) - inertia phase, gravity (buoyancy) - viscous phase, and the termination of spreading during the buoyancy - surface tension phase. The derivation considers both the constant discharge mode and the constant volume mode. Therefore, a complete description of the spreading phenomena from the time of initial spill to termination of spreading is presented. The emphasis of the study is on the dominant spreading mechanism for oil under ice, which is the buoyancy-viscous phase.

  9. Magnetization plateaus of dipolar spin ice on kagome lattice

    SciTech Connect (OSTI)

    Xie, Y. L.; Wang, Y. L.; Yan, Z. B.; Liu, J.-M.

    2014-05-07

    Unlike spin ice on pyrochlore lattice, the spin ice structure on kagome lattice retains net magnetic charge, indicating non-negligible dipolar interaction in modulating the spin ice states. While it is predicted that the dipolar spin ice on kagome lattice exhibits a ground state with magnetic charge order and ?3?×??3 spin order, our work focuses on the magnetization plateau of this system. By employing the Wang-Landau algorithm, it is revealed that the lattice exhibits the fantastic three-step magnetization in response to magnetic field h along the [10] and [01] directions, respectively. For the h//[1 0] case, an additional ?3/6M{sub s} step, where M{sub s} is the saturated magnetization, is observed in a specific temperature range, corresponding to a new state with charge order and short-range spin order.

  10. Thermal desorption of CH4 retained in CO2 ice

    E-Print Network [OSTI]

    R. Luna; C. Millan; M. Domingo; M. A. Satorre

    2008-01-21

    CO2 ices are known to exist in different astrophysical environments. In spite of this, its physical properties (structure, density, refractive index) have not been as widely studied as those of water ice. It would be of great value to study the adsorption properties of this ice in conditions related to astrophysical environments. In this paper, we explore the possibility that CO2 traps relevant molecules in astrophysical environments at temperatures higher than expected from their characteristic sublimation point. To fulfil this aim we have carried out desorption experiments under High Vacuum conditions based on a Quartz Crystal Microbalance and additionally monitored with a Quadrupole Mass Spectrometer. From our results, the presence of CH4 in the solid phase above the sublimation temperature in some astrophysical scenarios could be explained by the presence of several retaining mechanisms related to the structure of CO2 ice.

  11. Radio-frequency probes of Antarctic ice at South Pole

    E-Print Network [OSTI]

    Besson, David Zeke; Kravchenko, I.

    2013-05-16

    consistent with measurements in East Antarctica. Combined with other radio echo sounding data, we conclude that observed birefringent asymmetries at South Pole are generated entirely in the lower half of the ice sheet. By contrast, birefringent asymmetries...

  12. A new approach to automatic radiation spectrum analysis

    SciTech Connect (OSTI)

    Olmos, P.; Diaz, J.C.; Perez, J.M.; Aguayo, P.; Bru, A.; Garcia-Belmonte, G.; de Pablos, J.L. ); Gomez, P.; Rodellar, V. )

    1991-08-01

    In this paper the application of adaptive methods to the solution of the automatic radioisotope identification problem using the energy spectrum is described. The identification is carried out by means of neural networks, which allow the use of relatively reduced computational structures, while keeping high pattern recognition capability. In this context, it has been found that one of these simple structures, once adequately trained, is quite suitable to identify a given isotope present in a mixture of elements as well as the relative proportions of each identified substance. Preliminary results are good enough to consider these adaptive structures as powerful and simple tools in the automatic spectrum analysis.

  13. Automatic Bayesian inference for LISA data analysis strategies

    E-Print Network [OSTI]

    Alexander Stroeer; Jonathan Gair; Alberto Vecchio

    2006-09-04

    We demonstrate the use of automatic Bayesian inference for the analysis of LISA data sets. In particular we describe a new automatic Reversible Jump Markov Chain Monte Carlo method to evaluate the posterior probability density functions of the a priori unknown number of parameters that describe the gravitational wave signals present in the data. We apply the algorithm to a simulated LISA data set containing overlapping signals from white dwarf binary systems (DWD) and to a separate data set containing a signal from an extreme mass ratio inspiral (EMRI). We demonstrate that the approach works well in both cases and can be regarded as a viable approach to tackle LISA data analysis challenges.

  14. Determining Greenland Ice Sheet sensitivity to regional climate change: one-way coupling of a 3-D thermo-mechanical ice sheet model with a mesoscale climate model

    E-Print Network [OSTI]

    Schlegel, Nicole-Jeanne

    2011-01-01

    ice sheet model with a mesoscale climate model By Nicole-ice sheet model with a mesoscale climate model Copyrightice sheet model with a mesoscale climate model by Nicole-

  15. IceCube: The state of the art

    E-Print Network [OSTI]

    Teresa Montaruli

    2006-08-09

    In this paper we describe the performance of the 9 instrumented IceCube strings and 16 surface IceTop stations taking data at the Geographical South Pole after 2 deployment seasons. We will focus on the description of the array and on the construction and data analysis status. The expected full array performance is discussed and compared to other results for the relevant physics studies using high energy neutrinos for astrophysical neutrino searches.

  16. Structure order, local potentials, and physical anomalies of water ice

    E-Print Network [OSTI]

    Chang Q Sun

    2014-07-11

    Hydrogen-bond forms a pair of asymmetric, coupled, H-bridged oscillators with ultra-short-range interactions and memory. hydrogen bond cooperative relaxation and the associated binding electron entrapment and nonbonding electron polarization discriminate water and ice from other usual materials in the physical anomalies. As a strongly correlated fluctuating system, water prefers the statistically mean of tetrahedrally-coordinated structure with a supersolid skin that is elastic, polarized, ice like, hydrophobic, with 3/4 density.

  17. Sputtering of Oxygen Ice by Low Energy Ions

    E-Print Network [OSTI]

    Muntean, E A; Field, T A; Fitzsimmons, A; Hunniford, C A; McCullough, R W

    2015-01-01

    Naturally occurring ices lie on both interstellar dust grains and on celestial objects, such as those in the outer solar system. These ices are continu- ously subjected to irradiation by ions from the solar wind and/or cosmic rays, which modify their surfaces. As a result, new molecular species may form which can be sputtered off into space or planetary atmospheres. We determined the experimental values of sputtering yields for irradiation of oxygen ice at 10 K by singly (He+, C+, N+, O+ and Ar+) and doubly (C2+, N2+ and O2+) charged ions with 4 keV kinetic energy. In these laboratory experiments, oxygen ice was deposited and irradiated by ions in an ultra high vacuum chamber at low temperature to simulate the environment of space. The number of molecules removed by sputtering was observed by measurement of the ice thickness using laser interferometry. Preliminary mass spectra were taken of sputtered species and of molecules formed in the ice by temperature programmed desorption (TPD). We find that the experi...

  18. CO and N$_2$ desorption energies from water ice

    E-Print Network [OSTI]

    Fayolle, Edith C; Loomis, Ryan; Bergner, Jennifer; Graninger, Dawn M; Rajappan, Mahesh; Öberg, Karin I

    2015-01-01

    The relative desorption energies of CO and N$_2$ are key to interpretations of observed interstellar CO and N$_2$ abundance patterns, including the well-documented CO and N$_2$H$^+$ anti-correlations in disks, protostars and molecular cloud cores. Based on laboratory experiments on pure CO and N$_2$ ice desorption, the difference between CO and N$_2$ desorption energies is small; the N$_2$-to-CO desorption energy ratio is 0.93$\\pm$0.03. Interstellar ices are not pure, however, and in this study we explore the effect of water ice on the desorption energy ratio of the two molecules. We present temperature programmed desorption experiments of different coverages of $^{13}$CO and $^{15}$N$_2$ on porous and compact amorphous water ices and, for reference, of pure ices. In all experiments, $^{15}$N$_2$ desorption begins a few degrees before the onset of $^{13}$CO desorption. The $^{15}$N$_2$ and $^{13}$CO energy barriers are 770 and 866 K for the pure ices, 1034-1143 K and 1155-1298 K for different sub-monolayer co...

  19. IceCube: An Instrument for Neutrino Astronomy

    SciTech Connect (OSTI)

    IceCube Collaboration; Halzen, F.; Klein, S.

    2010-06-04

    Neutrino astronomy beyond the Sun was first imagined in the late 1950s; by the 1970s, it was realized that kilometer-scale neutrino detectors were required. The first such instrument, IceCube, is near completion and taking data. The IceCube project transforms a cubic kilometer of deep and ultra-transparent Antarctic ice into a particle detector. A total of 5,160 optical sensors are embedded into a gigaton of Antarctic ice to detect the Cherenkov light emitted by secondary particles produced when neutrinos interact with nuclei in the ice. Each optical sensor is a complete data acquisition system, including a phototube, digitization electronics, control and trigger systems and LEDs for calibration. The light patterns reveal the type (flavor) of neutrino interaction and the energy and direction of the neutrino, making neutrino astronomy possible. The scientific missions of IceCube include such varied tasks as the search for sources of cosmic rays, the observation of Galactic supernova explosions, the search for dark matter, and the study of the neutrinos themselves. These reach energies well beyond those produced with accelerator beams.

  20. INDICATOR: LAKE ERIE ICE COVER Winter ice cover on Lake Erie affects the amount of heat and moisture transferred

    E-Print Network [OSTI]

    by impeding or stopping navigation, interfering with power plants and cooling water intakes, and damaging was virtually free of any significant ice cover in 1998 and, with the exception of portions of January, the same

  1. The glacier and land ice surface topography interferometer: An airborne proof-of-concept demonstration of high-precision Ka-band single-pass elevation mapping

    E-Print Network [OSTI]

    2011-01-01

    and Land Ice Surface Topography Interferometer (GLISTIN): AAND LAND ICE SURFACE TOPOGRAPHY INTERFEROMETER application,”AND LAND ICE SURFACE TOPOGRAPHY INTERFEROMETER Fig. 2.

  2. 115 year ice-core data from Akademii Nauk ice cap, Severnaya Zemlya: high-resolution record of Eurasian Arctic climate change

    E-Print Network [OSTI]

    Fischer, Hubertus

    ice core has been drilled within the framework of the European Project for Ice Coring in Antarctica of Antarctica. Drilling reached bedrock during the last field season 2005/06 providing ice over a time span. Since Ca2+ is derived from terrestrial dust and marine sources, the non-sea-salt calcium concentrations

  3. EARS: ELECTROMYOGRAPHICAL AUTOMATIC RECOGNITION Szu-Chen Stan Jou and Tanja Schultz

    E-Print Network [OSTI]

    Schultz, Tanja

    EARS: ELECTROMYOGRAPHICAL AUTOMATIC RECOGNITION OF SPEECH Szu-Chen Stan Jou and Tanja Schultz research on automatic speech recognition of surface electromyographic signals that are generated, experiments are conducted to show the anticipatory behavior of electromyographic signals with respect

  4. Automatic Search of Differential Path in MD4 Pierre-Alain Fouque, Gatan Leurent, Phong Nguyen

    E-Print Network [OSTI]

    International Association for Cryptologic Research (IACR)

    Automatic Search of Differential Path in MD4 Pierre-Alain Fouque, Gaëtan Leurent, Phong Nguyen paths were found "by hand". In this paper, we present an algorithm which automatically finds suitable

  5. Automatic Proofs of Privacy of Secure Multi-Party Computation Protocols Against

    E-Print Network [OSTI]

    International Association for Cryptologic Research (IACR)

    Automatic Proofs of Privacy of Secure Multi-Party Computation Protocols Against Active Adversaries.pettai@ut.ee, peeter.laud@cyber.ee Abstract We describe an automatic analysis to check secure multiparty computation

  6. Single-photon decision maker

    E-Print Network [OSTI]

    Naruse, Makoto; Drezet, Aurelien; Huant, Serge; Aono, Masashi; Hori, Hirokazu; Kim, Song-Ju

    2015-01-01

    Decision making is critical in our daily lives and for society in general and is finding evermore practical applications in information and communication technologies. Herein, we demonstrate experimentally that single photons can be used to make decisions in uncertain, dynamically changing environments. Using a nitrogen-vacancy in a nanodiamond as a single-photon source, we demonstrate the decision-making capability by solving the multi-armed bandit problem. This capability is directly and immediately associated with single-photon detection in the proposed architecture, leading to adequate and adaptive autonomous decision making. This study makes it possible to create systems that benefit from the quantum nature of light to perform practical and vital intelligent functions.

  7. An Electronic Market-Maker

    E-Print Network [OSTI]

    Chan, Nicholas Tung

    2001-04-17

    This paper presents an adaptive learning model for market-making under the reinforcement learning framework. Reinforcement learning is a learning technique in which agents aim to maximize the long-term accumulated rewards. ...

  8. Instantons As Unitary Spin Maker

    E-Print Network [OSTI]

    Mauro Napsuciale; Andreas Wirzba; Mariana Kirchbach

    2001-11-06

    We investigate the relevance of the instanton-induced determinantal 't Hooft interaction to the eta-nucleon coupling within the framework of a three-flavor linear sigma model in the OZI-rule-respecting basis. Instantons, in combination with the spontaneous breaking of chiral symmetry, are shown to provide the major mechanism for the ideal mixing between pseudoscalar strange and non-strange quarkonia. As long as 't Hooft's interaction captures most of the basic features of the axial QCD gluon anomaly, we identify the anomaly as the main culprit for the appearance of octet flavor symmetry in the anomalous sectors of the pseudoscalar (and axial vector) mesons. Within this context, unitary spin is shown to be an accidental symmetry due to anomalous gluon dynamics rather than a fundamental symmetry in its own right. Though we find the eta-nucleon coupling constant to obey a Goldberger-Treiman like relation, the latter does not take its origin from a pole dominance of the induced pseudoscalar form factor of the octet axial current, but from a subtle flavor-mixing mechanism that is traced back to instanton dynamics. The model presented allows for possible generalizations to non-ideal mixing angles and different values of the meson decay constants in the strange and non-strange sectors, respectively. Finally, we discuss the issue as to what extent the eta meson may be considered as a Goldstone boson under the constraints of the anomaly-produced unitary spin.

  9. Instantons As Unitary Spin Maker

    E-Print Network [OSTI]

    Napsuciale, M; Kirchbach, M; Napsuciale, Mauro; Wirzba, Andreas; Kirchbach, Mariana

    2002-01-01

    The instanton-induced determinantal 't Hooft interaction is built into a three-flavor linear sigma model which is considered in the OZI-rule-respecting basis. The mixing of the strange and non-strange quarkonia, which is due to the presence of instantons in combination with the spontaneous breaking of chiral symmetry, is shown to be ideal thus leading to the formation of an octet-flavor state. We study the impact of 't Hooft's interaction on the eta NN coupling finding the usual SU(3) results for this coupling, however, with possible generalizations to non-ideal mixing angles and different values of the meson decay constants in the strange and non-strange sectors, respectively.

  10. Bit makers fight to survive

    SciTech Connect (OSTI)

    Brezovec, D.

    1983-04-01

    Competition is fierce amongst the manufacturers of roof drill bits, and testing and machining techniques have improved to design bits that last longer. Information is given in tabulated form on various models and their USA manufacturers. Diamond bits for roof drilling are discussed.

  11. TTW - PageMaker 2

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power AdministrationRobust,Field-effectWorking With LivermoreSustainableDEPARTMENT OFEnergy-8, 2004 By the5, 2004 By

  12. TTW - PageMaker 2

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power AdministrationRobust,Field-effectWorking With LivermoreSustainableDEPARTMENT OFEnergy-8, 2004 By the5, 2004

  13. TTW - PageMaker 2

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power AdministrationRobust,Field-effectWorking With LivermoreSustainableDEPARTMENT OFEnergy-8, 2004 By the5, 20049,

  14. FULLY SAMPLED MAPS OF ICES AND SILICATES IN FRONT OF CEPHEUS A EAST WITH THE SPITZER SPACE TELESCOPE1

    E-Print Network [OSTI]

    Gerakines, Perry

    are relatively constant over the mapped region exhibiting both ice absorptions. The fraction of CO2 ice are invoked. The routine detection of solid CO2, with a fraction relative to water ice between 9% and 37 report the first fully sampled maps of the distribution of interstellar CO2 ices, H2O ices, and total

  15. Automatic Extraction of Cartographic Information from Airborne Interferometric SAR Data

    E-Print Network [OSTI]

    Mayer, Helmut A.

    Automatic Extraction of Cartographic Information from Airborne Interferometric SAR Data Reinhold cartographic feature extraction by the airborne AeS--1 instrument is presented. We extract regions corresponding to cartographic features for the classes built--up area, forest, water and open area. Water

  16. Automatic Conflict Detection on Contracts Stephen Fenech1

    E-Print Network [OSTI]

    Pace, Gordon J.

    into the applications of the contract analysis approach we present. These techniques are applied to a small case studyAutomatic Conflict Detection on Contracts Stephen Fenech1 , Gordon J. Pace1 , and Gerardo Schneider on collaborating, yet compet- ing, agents or virtual organisations exchanging services. Contracts, expressing

  17. SEMI-AUTOMATIC WEB SERVICE GENERATION AND CLASSIFICATION

    E-Print Network [OSTI]

    SEMI-AUTOMATIC WEB SERVICE GENERATION AND CLASSIFICATION Automated assistance to the web service of semantic web techniques with web service technologies has enabled the emergence of so-called semantic web and classification of web services. Key words: semantic web services; web service generation; web service

  18. Automatic Data Layout for DistributedMemory KEN KENNEDY

    E-Print Network [OSTI]

    Kremer, Ulrich

    Automatic Data Layout for Distributed­Memory Machines KEN KENNEDY Rice University and ULRICH KREMER. Authors' addresses: K. Kennedy, Department of Computer Science, Rice University, 6100 Main Street, Houston on Programming Languages and Systems, Vol. 20, No. 4, July 1998, Pages 869--916. #12; 870 · Ken Kennedy a

  19. Towards Automatic Classification of Discourse Elements in Essays Jill Burstein

    E-Print Network [OSTI]

    Marcu, Daniel

    Towards Automatic Classification of Discourse Elements in Essays Jill Burstein ETS Technologies MS classification to identify thesis statements. This method yields results that are much closer to human improve their writing skills, writing evaluation systems need to provide feedback that is specific to each

  20. Automatic Construction of Building Footprints from Airborne LIDAR Data

    E-Print Network [OSTI]

    Chen, Shu-Ching

    1 Automatic Construction of Building Footprints from Airborne LIDAR Data Keqi Zhang, Jianhua Yan. INTRODUCTION BUILDING footprints are one of the fundamental GIS data components that can be used to estimate, and estimation of building base elevation for flood insurance [2]. In addition, footprint data in combination

  1. First Steps Towards Automatic Recognition of Spontaneuous Facial Action Units

    E-Print Network [OSTI]

    Bartlett, Marian Stewart

    , automatic recognition of spontaneous facial behavior requires methods for handling out-of-image-plane head environments in which the subjects deliberately face the camera. Since people often nod or turn their heads parameters, head geometry and 3-D head pose across entire sequences of video images. Head geometry and image

  2. ON FEATURE BASED AUTOMATIC CLASSIFICATION OF SINGLE AND MULTITONE SIGNALS

    E-Print Network [OSTI]

    Arabshahi, Payman

    ON FEATURE BASED AUTOMATIC CLASSIFICATION OF SINGLE AND MULTITONE SIGNALS Arindam K. Das, Payman of interest has not been previ- ously observed; it is not part of a library of known signals; and no automated demonstrating the feasibility of the above features for au- tomatic classification purposes of single

  3. Automatic selection of tuning parameters in wind power prediction

    E-Print Network [OSTI]

    Automatic selection of tuning parameters in wind power prediction Lasse Engbo Christiansen (lec Report number: IMM-Technical Report-2007-12 Project title: Intelligent wind power prediction systems PSO these classes of systems, e.g. when predicting the power production from new wind farms. 4 #12;1 Introduction

  4. Automatic Detection of Defects in Riveted Lapjoints using Eddy Current

    E-Print Network [OSTI]

    Automatic Detection of Defects in Riveted Lap­joints using Eddy Current Fredrik Lingvall Tadeusz originating from rivet holes in a riveted lap­joint using eddy current (EC) inspection is presented consisted of median filtering, rotation and de­biasing of the eddy current pattern. The rotation

  5. AUTOMATIC AND ROBUST SEMANTIC REGISTRATION OF 3D HEAD SCANS

    E-Print Network [OSTI]

    Eisert, Peter

    useful for error- prone vision techniques like stereo analysis but also for model based repairing for applications such as 3D graphics production and also for computer vision research. Laser scanners are the primeAUTOMATIC AND ROBUST SEMANTIC REGISTRATION OF 3D HEAD SCANS David C. Schneider, Peter Eisert

  6. Alerting humanitarians to emergencies Sign me in automatically

    E-Print Network [OSTI]

    McGraw, Kevin J.

    Alerting humanitarians to emergencies Username: Password: Sign me in automatically GET A PASSWORD't looking for good providers or even good company. They want only the best-looking birds, a research team an entire nest of some other male's young, Safran's team found. For their experiment, Safran and colleagues

  7. User-Friendly Methodology for Automatic Exploration of Compiler Options

    E-Print Network [OSTI]

    Gao, Guang R.

    User-Friendly Methodology for Automatic Exploration of Compiler Options: A Case Study on the Intel, lochen, jcuvillo, ggao}@capsl.udel.edu Abstract Finding an optimized combination of compiler options with a deep understanding of the application at hand and a fairly good knowledge of the compiler features

  8. Automatic Clustering of Grid Nodes Department of Electrical and

    E-Print Network [OSTI]

    Subhlok, Jaspal

    Automatic Clustering of Grid Nodes Qiang Xu Department of Electrical and Computer Engineering systems such as the Network Weather Service (NWS) [15] are commonly employed by Grid middleware systems Science University of Houston Houston, Texas 77204 Email: jaspal@uh.edu Abstract-- In a grid

  9. SPEECH-DRIVEN AUTOMATIC FACIAL EXPRESSION SYNTHESIS* Elif Bozkurt1

    E-Print Network [OSTI]

    Erdem, Cigdem Eroglu

    SPEECH-DRIVEN AUTOMATIC FACIAL EXPRESSION SYNTHESIS* Elif Bozkurt1 , Çi÷dem Ero÷lu Erdem1 , Engin heads. The proposed system is speaker and language independent. We parameterize speech data with prosody and acceleration coefficients are used. HMM based classifier has lower recognition rates than the GMM based

  10. Automatic Analysis of the NRL Pump Ruggero Lanotte a

    E-Print Network [OSTI]

    Troina, Angelo

    statistically modulated acknowledgments. In [12] a NRL Pump assurance strategy is proposed. A logical viewAutomatic Analysis of the NRL Pump Ruggero Lanotte a , Andrea Maggiolo-Schettini b , Simone Tini Sapienza", Via Salaria 113, 00198 Roma, Italy Abstract We define a probabilistic model for the NRL Pump

  11. Automatic Analysis of the NRL Pump Ruggero Lanottea

    E-Print Network [OSTI]

    Tronci, Enrico

    behavior, the pump uses statistically modulated acknowledgments. In [12] a NRL Pump assurance strategyAutomatic Analysis of the NRL Pump Ruggero Lanottea , Andrea Maggiolo-Schettinib , Simone Tinia Sapienza", Via Salaria 113, 00198 Roma, Italy Abstract We define a probabilistic model for the NRL Pump

  12. Enhancing Patent Expertise through Automatic Matching with Scientific Papers

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Enhancing Patent Expertise through Automatic Matching with Scientific Papers Kafil Hajlaoui of scientific papers, developed in the context of an international patents classification plan related in their task of evaluation of the originality and novelty of a patent, by of- fering to the latter the most

  13. Automatic Detection of Treatment Relationships for Patent Retrieval

    E-Print Network [OSTI]

    Cárdenas, Alfonso F.

    Automatic Detection of Treatment Relationships for Patent Retrieval Aaron Chu UCLA Computer Science Department Los Angeles, California 90024 aaronc@ucla.edu Shigeyuki Sakurai1 4 th Patent Examination Department Japan Patent Office Tokyo, Japan sakurai-shigeyuki@jpo.go.jp Alfonso F. Cardenas UCLA Computer

  14. Automatically Extracting Features for Concept Learning from the Web

    E-Print Network [OSTI]

    Murphy, Robert F.

    Automatically Extracting Features for Concept Learning from the Web William W. Cohen wcohen propose a simple, general-purpose method that takes as input a set of instances and a collection of web, for example, the gen- erated feature g classical might be true for all instances that appear in a web page

  15. What's the code? Automatic Classification of Source Code Archives

    E-Print Network [OSTI]

    Giles, C. Lee

    What's the code? Automatic Classification of Source Code Archives Secil Ugurel 1 , Robert Krovetz 2, zha} @cse.psu.edu 2 NEC Research Institute 4 Independence Way, Princeton, NJ 08540 {krovetz, dpennock, compuman} @research.nj.nec.com 3 School of Information Sciences and Technology The Pennsylvania State

  16. Automatically Constructing Semantic Web Services from Online Sources

    E-Print Network [OSTI]

    Lerman, Kristina

    of Southern California Information Sciences Institute 4676 Admiralty Way Marina del Rey, CA 90292 {ambite into Semantic Web Services. In general, the type of source that we focus on in this paper are informationAutomatically Constructing Semantic Web Services from Online Sources Jos´e Luis Ambite, Sirish

  17. Optimal Demand Response Capacity of Automatic Lighting Control

    E-Print Network [OSTI]

    Mohsenian-Rad, Hamed

    1 Optimal Demand Response Capacity of Automatic Lighting Control Seyed Ataollah Raziei and Hamed-mails: razieis1@udayton.edu and hamed@ee.ucr.edu Abstract--Demand response programs seek to ad- just the normal prior studies have extensively studied the capacity of offering demand response in buildings

  18. AUTOMATIC SCORING OF THE SEVERITY OF PSORIASIS SCALING

    E-Print Network [OSTI]

    AUTOMATIC SCORING OF THE SEVERITY OF PSORIASIS SCALING David Delgado Bjarne Ersbřll Jens Michael the severity of scaling in psoriasis lesions is proposed. The method separates the different regions during the treatment. An experiment over a collection of psoriasis images is conducted to test

  19. Automatic Identification of Informative Sections of Web Pages

    E-Print Network [OSTI]

    Giles, C. Lee

    Automatic Identification of Informative Sections of Web Pages Sandip Debnath, Prasenjit Mitra, Nirmal Pal, and C. Lee Giles Abstract--Web pages--especially dynamically generated ones--contain several call these sections as "Web page blocks" or just "blocks." First, a tool must segment the Web pages

  20. Unsupervised Word Categorization Using Self-Organizing Maps and Automatically

    E-Print Network [OSTI]

    Lagus, Krista

    Unsupervised Word Categorization Using Self-Organizing Maps and Automatically Extracted Morphs and semantic word catego- rizations is a challenging problem for highly inflecting languages due to excessive corpus-based tools. We present a completely automated approach for producing word categorizations