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

    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 DataDepartment of Energy Your Density Isn't Your Destiny: The FutureComments from TarasaName4ServicesTribalWorkplaceAutomatedof

  5. adsorption ice maker: Topics by E-print Network

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

    Completed all Enhanced Hot Water Drill staff from UW, IceCube collaborators, and Raytheon. Conducted a Quarterly Status Meeting at UW-loaded schedule for on-ice...

  6. 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)

    1995-01-01T23:59:59.000Z

    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.

  7. 2014-03-07 Issuance: Energy Conservation Standards for Automatic...

    Energy Savers [EERE]

    2014-03-07 Issuance: Energy Conservation Standards for Automatic Commercial Ice Makers; Notice of Proposed Rulemaking 2014-03-07 Issuance: Energy Conservation Standards for...

  8. Prevention of ice formation in light-aircraft-engine induction systems by using an automatic control to operate the carburetor-air heater

    E-Print Network [OSTI]

    Whisenhunt, Garland Bishop

    1955-01-01T23:59:59.000Z

    LIBRARY A A III COLLEGE OF TEXAS PREVENTION OF ICE FORMATION IN LIGHT-AIRCRAFT-EIEIINE INDUCTION SYSTEMS BY USING AN AUTOMATIC CONTROL TO OPERATE THE CARBURETOB AIR HEATER A Thesis GARLAND BISHOP MHISENHUNT & JR SuIm&itted to the Graduate... School of the Agricultural and Mechanioal College of Texas in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE August 1955 MAJOR SUBJECT ' MECHANICAL ENGINEERING& PREVENTION OF ICE FORMATION IN LIGHT...

  9. IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING, VOL. 42, NO. 7, JULY 2004 1433 Automatic Detection and Validity of the Sea-Ice

    E-Print Network [OSTI]

    Long, David G.

    the main Arctic pack ice. Validation with RADARSAT 1 and with the Advanced Very High Resolution Radiometer is strongest in open water areas, such as leads and polynyas, inside the pack ice and along the Marginal Ice Detection and Validity of the Sea-Ice Edge: An Application of Enhanced-Resolution QuikScat/SeaWinds Data

  10. Fiber optic diffraction grating maker

    DOE Patents [OSTI]

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

    1991-01-01T23:59:59.000Z

    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.

  11. Fiber optic diffraction grating maker

    DOE Patents [OSTI]

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

    1991-05-21T23:59:59.000Z

    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.

  12. 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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742Energy ChinaofSchaeferApril 1,(EAC) Richard2015MountainLLC TribalHouZeDepartment ofgov400 to: gov

  13. Interoperability Checklist for Decision-Makers

    SciTech Connect (OSTI)

    Melton, Ronald B.; Ambrosio, Ron

    2010-12-09T23:59:59.000Z

    In April 2007 the GridWise® Architecture Council published the Introduction to Interoperability and Decision-Maker’s Interoperability Checklist Version 1.0 as a tool to be used by policy makers and executives making smart grid policy or investment decisions. Subsequently there has been a significant amount of additional work on smart grid interoperability by the council and others. This paper summarizes the current efforts of the council to update the checklist to incorporate this subsequent work.

  14. Ice sheets

    E-Print Network [OSTI]

    Bentley, Charles G.; Thomas, Robert H.; Velicogna, Isabella

    2007-01-01T23:59:59.000Z

    is eroding West Antarctic Ice Sheet. Geophysical Researchand Yungel, J. (2000). Greenland Ice Sheet: High-Elevation2004). The west Antarctic ice sheet and long term climate

  15. 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

  16. 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

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

    E-Print Network [OSTI]

    California at Davis, University of

    , analysts, policy makers, and the public began to worry that burning coal, oil, and gas would affectSUSTAINABLE TRANSPORTATION ENERGY PATHWAYS A Research Summary for Decision Makers Edited by Joan TRANSPORTATION ENERGY PATHWAYS PART 4 CHAPTER 13: BEYOND LIFE-CYCLE ANALYSIS Chapter 13: Beyond Life

  18. Interstellar Ices

    E-Print Network [OSTI]

    Boogert, A C A

    2003-01-01T23:59:59.000Z

    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. Archimedean Ice

    E-Print Network [OSTI]

    Kari Eloranta

    2009-09-22T23:59:59.000Z

    The striking boundary dependency (the Arctic Circle phenomenon) exhibited in the ice model on the square lattice extends to other planar set-ups. We present these findings for the triangular and the Kagome lattices. Critical connectivity results guarantee that ice configurations can be generated using the simplest and most efficient local actions. Height functions are utilized throughout the analysis. At the end there is a surprise in store: on the remaining Archimedean lattice for which the ice model can be defined, the 3.4.6.4. lattice, the long range behavior is completely different from the other cases.

  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 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

  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, 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

  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 Ogden and Lorraine Anderson #12;Institute of Transportation Studies University of California, Davis One TRANSPORTATION ENERGY PATHWAYS PART 3: SCENARIOS FOR A LOW-CARBON TRANSPORTATION FUTURE PART 3 Part 3: Scenarios

  3. 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

  4. 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

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

    E-Print Network [OSTI]

    California at Davis, University of

    example, the electricity system depends on other infrastructures that deliver coal or natural gas and less on the natural gas or electricity infrastructure supplying energy to make hydrogen). TodaySUSTAINABLE TRANSPORTATION ENERGY PATHWAYS A Research Summary for Decision Makers Edited by Joan

  6. 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

  7. 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 DataDepartment of Energy Your Density Isn't Your Destiny: Theof"WaveInteractions andDefinition oftheLighting InventorySubpoenas Maker

  8. 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 onYouTube YouTube Note: Since the.pdfBreakingMay 2015 < prev next > SunChallenge toProcess RuleDecision Makers

  9. WeatherMaker: Weather file conversion and evaluation

    SciTech Connect (OSTI)

    Balcomb, J.D.

    1999-07-01T23:59:59.000Z

    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.

  10. Mile High: Noncompliance Determination (2012-SE-4501)

    Broader source: Energy.gov [DOE]

    DOE issued a Notice of Noncompliance Determination to Mile High Equipment, LLC finding that Ice-O-Matic brand automatic commercial ice maker basic model ICE2106 FW, HW does not comport with the energy conservation standards.

  11. How atmospheric ice forms | EMSL

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

    atmospheric ice forms How atmospheric ice forms Released: September 08, 2014 New insights into atmospheric ice formation could improve climate models This study advances our...

  12. Arctic ice islands

    SciTech Connect (OSTI)

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

    1988-01-01T23:59:59.000Z

    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.

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

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

    Certain Commercial and Industrial Equipment: Test Procedures for Automatic Commercial Ice Makers SubmissionofCommentsbyHowe.pdf More Documents & Publications Howe-DOE...

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

    Energy Savers [EERE]

    ISSUANCE 2014-12-31: Energy Conservation Program: Energy Conservation Standards for Automatic Commercial Ice Makers, Final Rule ISSUANCE 2014-12-31: Energy Conservation Program:...

  15. Manufacturers of Noncompliant Products Agree to Civil Penalties...

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

    equipment found in violation included automatic commercial ice makers, distribution transformers, external power supplies, showerheads and lighting products. The companies ceased...

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

    E-Print Network [OSTI]

    Hyatt, Jason

    2006-01-01T23:59:59.000Z

    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 ...

  17. We investigate one possible explanation for corrupt behavior namely that individual decision makers who engage frequently in illegal actions might

    E-Print Network [OSTI]

    Utrecht, Universiteit

    decision makers who engage frequently in illegal actions might underestimate the overall probability

  18. 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...

  19. 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.

  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)

    1993-01-01T23:59:59.000Z

    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. Ice electrode electrolytic cell

    DOE Patents [OSTI]

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

    1993-04-06T23:59:59.000Z

    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.

  2. Using ice cores from the East Antarctic Ice Sheet, scientists have been able to study

    E-Print Network [OSTI]

    Using ice cores from the East Antarctic Ice Sheet, scientists have been able to study ice's ice sheets. Ice sheets are huge areas of permanent ice. There are only three ice sheets on Earth: the Greenland Ice Sheet, the West Antarctic Ice Sheet, and the East Antarctic Ice Sheet. The Greenland Ice Sheet

  3. Transporting Dry Ice

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

    Requirements for Shipping Dry Ice IATA PI 904 Source: Reg of the Day from ERCweb 2006 Environmental Resource Center | 919-469-1585 | webmaster@ercweb.com http:...

  4. Ice Drilling Gallonmilkjugs

    E-Print Network [OSTI]

    Saffman, Mark

    Ice Drilling Materials · Gallonmilkjugs · Syringes,largeand small · Pitchers · Spraybottles · 13x9? ·Isitbettertosquirtthewaterslowlyorasquicklyaspossible? ·Doestherateatwhichyousquirtthewaterchangethediameteroftheholes? ·Doesthetypeof`drill

  5. Sandia National Laboratories: ICED

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

    Paper Presented at American Society of Mechanical Engineers' (ASME) 2012 Internal Combustion Engine Division (ICED) Conference On August 28, 2013, in CRF, Energy, Energy...

  6. Mobile Ice Nucleus Spectrometer

    SciTech Connect (OSTI)

    Kulkarni, Gourihar R.; Kok, G. L.

    2012-05-07T23:59:59.000Z

    This first year report presents results from a computational fluid dynamics (CFD) study to assess the flow and temperature profiles within the mobile ice nucleus spectrometer.

  7. Ice particle size matters | EMSL

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

    Ice particle size matters Ice particle size matters Released: May 04, 2014 Fine-tuning cloud models for improved climate predictions The Science Arctic clouds are widespread and...

  8. INEEL/EXT-04-02506 2 Decision-Makers' Forum on a Unified Strategy for Nuclear Energy

    E-Print Network [OSTI]

    INEEL/EXT-04-02506 #12;2 Decision-Makers' Forum on a Unified Strategy for Nuclear Energy The Need a cogent call for unified action. Decision-Makers' Report: A Unified Strategy for Nuclear Energy A n with troubling trends in the #12;Decision-Makers' Forum on a Unified Strategy for Nuclear Energy 3 t is widely

  9. Reionization on ice

    E-Print Network [OSTI]

    C. C. Dudley; M. Imanishi; P. R. Maloney

    2006-02-15T23:59:59.000Z

    The case for substantial far infrared ice emission in local ultraluminous infrared galaxies, expected based on the presence of mid-infrared ice absorption in their spectra and the known far infrared optical properties of ice, is still largely unsupported by direct observation owing to insufficient far infrared spectral coverage. Some marginal supportive evidence is presented here. A clear consequence of far infrared ice emission is the need to extend the range of redshifts considered for submillimeter sources. This is demonstrated via the example of HDF 850.1. The solid phase of the ISM during reionization may be dominated by ice, and this could lead to the presence of reionization sources in submillimeter source catalogs. Submillimeter sources not detected at 24 micron in the GOODS-N field are examined. Two candidate reionization sources are identified at 3.6 micron through possible Gunn-Peterson saturation in the Z band.

  10. Life Cycle of Sea-Ice Frazil, or grease ice

    E-Print Network [OSTI]

    Washington at Seattle, University of

    of Sea Ice away from surface, long crystals as congelation ice (frozen on from below) Brine Channels within the ice (~width of human hair) Brine rejected from ice (4-10psu), but concentrates in brine from AWI #12;Brine Volume and Salinity From Thomas and Dieckmann 2002, Science .... adapted from papers

  11. Very ice rich permafrost Moderately ice rich permafrost

    E-Print Network [OSTI]

    Ruess, Roger W.

    TK lake Very ice rich permafrost Permafrost forest Moderately ice rich permafrost Open Bog Open Fen characteristics (mainly ice content) and burn severity determine trajectories of ecosystem succession post in the presence of moderately ice rich permafrost but have high resilience only under low burn severity in very

  12. Ice Cream with a Heart Create a new Clemson Ice

    E-Print Network [OSTI]

    Duchowski, Andrew T.

    Ice Cream with a Heart Contest! Create a new Clemson Ice Cream flavor! Raise money for your favorite charity! Win a free Clemson Ice Cream party for your organization! Enter at www organizations. The contest is called Ice Cream with a Heart and its purpose is to help student organizations

  13. An ice shelf breakup

    SciTech Connect (OSTI)

    Fahnestock, M. [Univ. of Maryland, College Park, MD (United States)

    1996-02-09T23:59:59.000Z

    Glaciers and ice sheets are controlled by the climate and must change if the conditions that led to their current configurations are changing. These ice masses exist at the interface between the atmosphere, which provides sustaining snowfall and thermal regulation, and the land, which provides a stable base and in many cases the elevation required to reach suitably cold conditions. Ice sheets and glaciers are distributed around the globe and can serve as potential indicators of past climate variability and current climatic trends. 9 refs.

  14. Designing for effective stationkeeping in ice

    E-Print Network [OSTI]

    Nørvåg, Kjetil

    Designing for effective stationkeeping in ice CeSOS Highlights and AMOS Visions Conference DP Ice loads Ice #12;Effective stationkeeping in ice 1. Effective ship design. 2. An effective Ice Management system. 3. Effective strategies for the DP control system to compensate ice forces. #12;Ice

  15. Global ice sheet modeling

    SciTech Connect (OSTI)

    Hughes, T.J.; Fastook, J.L. [Univ. of Maine, Orono, ME (United States). Institute for Quaternary Studies

    1994-05-01T23:59:59.000Z

    The University of Maine conducted this study for Pacific Northwest Laboratory (PNL) as part of a global climate modeling task for site characterization of the potential nuclear waste respository site at Yucca Mountain, NV. The purpose of the study was to develop a global ice sheet dynamics model that will forecast the three-dimensional configuration of global ice sheets for specific climate change scenarios. The objective of the third (final) year of the work was to produce ice sheet data for glaciation scenarios covering the next 100,000 years. This was accomplished using both the map-plane and flowband solutions of our time-dependent, finite-element gridpoint model. The theory and equations used to develop the ice sheet models are presented. Three future scenarios were simulated by the model and results are discussed.

  16. Ice Formation in Gas-Diffusion Layers

    E-Print Network [OSTI]

    Dursch, Thomas

    2013-01-01T23:59:59.000Z

    the University of California. Ice Formation in Gas-Diffusionsub-freezing conditions, ice forms in the gas-diffusionstrategies exist to prevent ice formation, there is little

  17. Ice Heating Up Cold Clouds | EMSL

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

    Ice Heating Up Cold Clouds Ice Heating Up Cold Clouds Released: October 04, 2011 In a heated battle, ice crystals win the competition for cloud water vapor The mighty cloud ice...

  18. 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.

    2001-12-27T23:59:59.000Z

    We developed two 150-MHz coherent radar depth sounders for ice thickness measurements over the Greenland ice sheet. We developed one of these using connectorized components and the other using radio frequency integrated circuits (RFICs). Both...

  19. For the past 26 years, robots have invaded Caltech each spring to battle for their makers'

    E-Print Network [OSTI]

    of the "placebos," robots designed by the teaching assistants and used to round out a bracket when there was an oddFor the past 26 years, robots have invaded Caltech each spring to battle for their makers' bragging teams of undergrads competed in an "extreme recy- cling" challenge that pitted pairs of robotic vehicles

  20. Sustainability Leadership for the 21st Century: Who Are the Change Makers

    E-Print Network [OSTI]

    Martin, Jeff

    Sustainability Leadership for the 21st Century: Who Are the Change Makers Leith Sharp Sharp is a journey back into harmonious relationship with our living planet, with each other and with ourselves. #12 and Organic Food Production Sustainable Forestry Sustainable Fisheries Non Toxic Materials Closed Loop

  1. Ecosystem-based adaptation to climate change: what role for policy-makers, society and scientists?

    E-Print Network [OSTI]

    Boyer, Edmond

    1 Ecosystem-based adaptation to climate change: what role for policy-makers, society and scientists B., Martinez C., Imbach P., 2009. Ecosystem-based adaptation to climate change: what role for policy and livelihoods depend largely on ecosystem services, policies for adaptation to climate change should take

  2. EFFECTS OF OIL ON MARINE ECOSYSTEMS: A REVIEW FOR ADMINISTRATORS AND POLICY MAKERS

    E-Print Network [OSTI]

    EFFECTS OF OIL ON MARINE ECOSYSTEMS: A REVIEW FOR ADMINISTRATORS AND POLICY MAKERS DALE R. EVANS1 is reviewed. The focus is on studies on crude oil. and the results are discussed with the purpose of providing in decisions concerning petroleum developments and related activities. The characteristics ofcrude oil

  3. Incremental Evolutionary Methods for Automatic

    E-Print Network [OSTI]

    Langseth, Helge

    Incremental Evolutionary Methods for Automatic Programming of Robot Controllers Thesis Theory studies the fundamental control principles of robotic systems. However, the technological progress such system often requires manual work of engineers. Automatic methods might lead to systems that perform task

  4. Hail ice impact on composite structures at glancing angles

    E-Print Network [OSTI]

    Funai, Sho

    2012-01-01T23:59:59.000Z

    investigation of high velocity ice impacts on woven carbon/and ice sphere. .by trailing ice fragments. ..

  5. Image Content Engine (ICE)

    SciTech Connect (OSTI)

    Brase, J M

    2007-03-26T23:59:59.000Z

    The Image Content Engine (ICE) is being developed to provide cueing assistance to human image analysts faced with increasingly large and intractable amounts of image data. The ICE architecture includes user configurable feature extraction pipelines which produce intermediate feature vector and match surface files which can then be accessed by interactive relational queries. Application of the feature extraction algorithms to large collections of images may be extremely time consuming and is launched as a batch job on a Linux cluster. The query interface accesses only the intermediate files and returns candidate hits nearly instantaneously. Queries may be posed for individual objects or collections. The query interface prompts the user for feedback, and applies relevance feedback algorithms to revise the feature vector weighting and focus on relevant search results. Examples of feature extraction and both model-based and search-by-example queries are presented.

  6. Ice Cover on the Great Lakes NATIONALOCEANIC

    E-Print Network [OSTI]

    Ice Cover on the Great Lakes NATIONALOCEANIC AND ATMOSPHERIC ADMINISTRATION U.S. D EPARTMENT OF COMM ER CE Great Lakes Ice Cover facts since 1973 - 94.7% ice coverage in 1979 is the maximum on record - 9.5% ice coverage in 2002 is the lowest on record - 11.5% ice coverage in 1998, a strong El Nino

  7. Engineering Notes Ice Shape Characterization Using

    E-Print Network [OSTI]

    Tino, Peter

    Engineering Notes Ice Shape Characterization Using Self-Organizing Maps Stephen T. McClain Baylor. Introduction DURING the validation and verification of ice accretion codes, predicted ice shapes must be compared with experimental measurements of wind-tunnel or atmospheric ice shapes. Current methods for ice

  8. Hidden force floating ice

    E-Print Network [OSTI]

    Chang Q. Sun

    2015-01-17T23:59:59.000Z

    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.

  9. Ice Storm Supercomputer

    ScienceCinema (OSTI)

    None

    2013-05-28T23:59:59.000Z

    "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.

  10. Greenland Ice Sheet Retreat Since the Little Ice Age

    E-Print Network [OSTI]

    Beitch, Marci Jillian

    2014-01-01T23:59:59.000Z

    and I. Willis (2012), Greenland's shrinking ice cover: "fastfluctuations in southeast Greenland, Nat. Geosci. , 5(6),T. Decker (2011), Analysis of Greenland marine- terminating

  11. Ice Mass Balance Buoy: An Instrument to Measure and Attribute Changes in Ice Thickness

    E-Print Network [OSTI]

    Geiger, Cathleen

    Ice Mass Balance Buoy: An Instrument to Measure and Attribute Changes in Ice Thickness Jacqueline A the Ice Mass Balance buoy (IMB) in response to the need for monitoring changes in the thickness of the Arctic sea ice cover. The IMB is an autonomous, ice-based system. IMB buoys provide a time series of ice

  12. NOTES AND CORRESPONDENCE Surface Melting over Ice Shelves and Ice Sheets as Assessed from Modeled

    E-Print Network [OSTI]

    Meissner, Katrin Juliane

    NOTES AND CORRESPONDENCE Surface Melting over Ice Shelves and Ice Sheets as Assessed from Modeled of ice shelves and their progenitor ice sheets. To explore the magnitude of surface melt occurring over modern ice shelves and ice sheets in a climate scenario forced by anthropogenic emissions of carbon

  13. 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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742Energy China 2015ofDepartment ofCBFO-13-3322(EE)Department ofNow4 Year-in-ReviewIce Makers;

  14. Automatic readout micrometer

    DOE Patents [OSTI]

    Lauritzen, Ted (Lafayette, CA)

    1982-01-01T23:59:59.000Z

    A measuring system is disclosed for surveying and very accurately positioning objects with respect to a reference line. A principal use of this surveying system is for accurately aligning the electromagnets which direct a particle beam emitted from a particle accelerator. Prior art surveying systems require highly skilled surveyors. Prior art systems include, for example, optical surveying systems which are susceptible to operator reading errors, and celestial navigation-type surveying systems, with their inherent complexities. The present invention provides an automatic readout micrometer which can very accurately measure distances. The invention has a simplicity of operation which practically eliminates the possibilities of operator optical reading error, owning to the elimination of traditional optical alignments for making measurements. The invention has an extendable arm which carries a laser surveying target. The extendable arm can be continuously positioned over its entire length of travel by either a coarse or fine adjustment without having the fine adjustment outrun the coarse adjustment until a reference laser beam is centered on the target as indicated by a digital readout. The length of the micrometer can then be accurately and automatically read by a computer and compared with a standardized set of alignment measurements. Due to its construction, the micrometer eliminates any errors due to temperature changes when the system is operated within a standard operating temperature range.

  15. ICE Pulse Oximeter Smart Alarm App Requirements

    E-Print Network [OSTI]

    Huth, Michael

    ICE Pulse Oximeter Smart Alarm App Requirements 6 March 2012 Revision 0 for an Integrated Clinical Environment (ICE) pulse oximetry monitoring app that provides.2 References [Purpose: List all ICE standards, and other standards and references

  16. ICE Raids: Compounding Production, Contradiction, and Capitalism

    E-Print Network [OSTI]

    Reas, Elizabeth I

    2009-01-01T23:59:59.000Z

    is just a cheap way of boosting ICE ‘criminal alien’ arrestRegardless of whether or not ICE is motivated by maintainingWorkers in America: Factories and ICE Raids Produce Citizens

  17. Procuring Solar Energy: A Guide for Federal Facility Decision Makers, September 2010

    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 onYouTube YouTube Note: Since the.pdfBreakingMay 2015 < prev next > SunChallenge toProcess RuleDecision MakersSolar

  18. The ice sheet model The polythermal ice sheet

    E-Print Network [OSTI]

    Calov, Reinhard

    with a temperature at the pressure melting point, the latter being considered as a bi- nary mixture of ice and small a year. Sediment Sliding The sliding velocity over sediment reads which applies if the basal ice Hudson Bay and Hudson Strait has become temperate (see Figure 4d,e), fast basal sliding appears leading

  19. 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...

  20. Sandia National Laboratories: critical marginal ice zone

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

    marginal ice zone NASA Award for Marginal Ice Zone Observations and Process Experiment (MIZOPEX) On February 24, 2015, in Analysis, Climate, Modeling & Analysis, Monitoring, News,...

  1. Sandia National Laboratories: Marginal Ice Zone Observations...

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

    Marginal Ice Zone Observations and Processes Experiment mission Sierra Unmanned Aerial Vehicle to Begin Flights Over Arctic Sea Ice On July 25, 2013, in Climate, Customers &...

  2. Sandia National Laboratories: Arctic sea ice

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

    Arctic sea ice Sierra Unmanned Aerial Vehicle to Begin Flights Over Arctic Sea Ice On July 25, 2013, in Climate, Customers & Partners, Global, Monitoring, News, News & Events,...

  3. 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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006Datastreamstwrcam40m DocumentationJanuary 9, 2009 [Events, FeatureListGeneralPastIce Cores Outreach Home Room

  4. ARM - Measurement - Ice nuclei

    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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625govInstrumentstdmadap Documentation TDMADAP : XDC documentationBarrow,ice particleSize Distributiontypes ARMnuclei

  5. Dynamics of ice shelf rift propagation and iceberg calving inferred from geodetic and seismic observations

    E-Print Network [OSTI]

    Bassis, Jeremy N.

    2007-01-01T23:59:59.000Z

    2. Ice Shelves . . . . . . . . . . . . . . . . .5. Ice Rheology . . . . . . . . . . . . . 6.vi Calving Glaciers and Ice

  6. 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

  7. 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

    2009-01-01T23:59:59.000Z

    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.

  8. 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

  9. Global simulations of ice nucleation and ice supersaturation with an improved cloud scheme in the Community

    E-Print Network [OSTI]

    Gettelman, Andrew

    and supersaturation in CAM. The new model is able to reproduce field observations of ice mass and mixed phase cloud are sensitive to the parameterization of ice clouds. These results indicate that ice clouds are potentiallyGlobal simulations of ice nucleation and ice supersaturation with an improved cloud scheme

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

    E-Print Network [OSTI]

    Zhang, Jinlun

    are now available to determine the ice drift velocity. In addition, the drift of the pack ice can CoAssimilation of Ice Concentration in an Ice­Ocean Model R. W. LINDSAY AND J. ZHANG Polar Science October 2004, in final form 27 June 2005) ABSTRACT Ice concentration is a critical parameter of the polar

  11. Sea-ice thickness measurement based on the dispersion of ice swell

    E-Print Network [OSTI]

    -year pack ice, although other char- acteristics (Young's modulus, shear modulus, and Poisson coefficientSea-ice thickness measurement based on the dispersion of ice swell David Marsana) ISTerre, CNRS propagating in the Arctic sea ice cover is exploited in order to locally measure the ice thickness

  12. Impact of underwater-ice evolution on Arctic summer sea ice

    E-Print Network [OSTI]

    Worster, M. Grae

    Impact of underwater-ice evolution on Arctic summer sea ice Dirk Notz,1,4 Miles G. McPhee,2 M. Grae the simultaneous growth and ablation of a layer of ice between an under-ice melt pond and the underlying ocean. Such ``false bottoms'' are the only significant source of ice formation in the Arctic during summer. Analytical

  13. 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-silicate cutoff. In ice-silicate mixtures, brine channels are evident above the eutectic temperature only when

  14. 2011-12 PROSPECTUS2011-12 PROSPECTUS WESLEYAN MEN'S ICE HOCKEYWESLEYAN MEN'S ICE HOCKEY

    E-Print Network [OSTI]

    Devoto, Stephen H.

    - ponents in its inaugural season. Former bench boss Dave Snyder, in whose honor the Wesleyan ice rink2011-12 PROSPECTUS2011-12 PROSPECTUS WESLEYAN MEN'S ICE HOCKEYWESLEYAN MEN'S ICE HOCKEY #12....................................Chris Potter/Jeff Gilarde Men's Ice Hockey..............Chris Potter Women's Ice Hockey.........Jodi Mc

  15. Mathematics of Sea Ice K. M. Golden

    E-Print Network [OSTI]

    Golden, Kenneth M.

    , the sharp decline of the summer Arc- tic sea ice pack is probably the most dramatic. For example, the area and 1990's. While global climate models generally predict de- clines in the polar sea ice packs over the 21, such as the growth and decay of seasonal ice, the evolu- tion of ice pack reflectance, and biomass build

  16. 4, 709732, 2007 Ice-shelf ocean

    E-Print Network [OSTI]

    Boyer, Edmond

    OSD 4, 709­732, 2007 Ice-shelf ­ ocean interactions at Fimbul Ice Shelf M. R. Price Title Page published in Ocean Science Discussions are under open-access review for the journal Ocean Science Ice-shelf ­ ocean interactions at Fimbul Ice Shelf, Antarctica from oxygen isotope ratio measurements M. R. Price 1

  17. Climate Change and Variability Lake Ice, Fishes

    E-Print Network [OSTI]

    Sheridan, Jennifer

    #12;Climate Change and Variability Lake Ice, Fishes and Water Levels John J. Magnuson Center to everything else." #12;The Invisible Present The Invisible Place Magnuson 2006 #12;Ice-on Day 2007 Peter W. Schmitz Photo Local Lake Mendota #12;Ice Breakup 2010 Lake Mendota March 20 #12;March 21 Ice Breakup 2010

  18. Clothes Dryer Automatic Termination Evaluation

    SciTech Connect (OSTI)

    TeGrotenhuis, Ward E.

    2014-10-01T23:59:59.000Z

    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.

  19. A Step Towards Automatic Documentation

    E-Print Network [OSTI]

    Frank, Claude

    This paper describes a system which automatically generates program documentation. Starting with a plan generated by analyzing the program, the system computes several kinds of summary information about the program. The ...

  20. Automatic safety rod for reactors

    DOE Patents [OSTI]

    Germer, John H. (San Jose, CA)

    1988-01-01T23:59:59.000Z

    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.

  1. Neglecting ice-atmosphere interactions underestimates ice sheet melt in millennial-scale deglaciation simulations

    E-Print Network [OSTI]

    Pritchard, M. S.; Bush, A. B.; Marshall, S. J.

    2008-01-01T23:59:59.000Z

    Laurentide and Innutian ice sheets during the Last Glacialclimate of the laurentide ice sheet at the LGM, J. Clim. ,1958), The flow law of ice: A discussion of the assumptions

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

    E-Print Network [OSTI]

    Kirby, Mark Samuel

    1986-01-01T23:59:59.000Z

    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; ...

  3. Journal of Glaciology, Vol. 56, No. 199, 2010 805 Enhancement factors for grounded ice and ice shelves inferred

    E-Print Network [OSTI]

    Gagliardini, Olivier

    shelves inferred from an anisotropic ice-flow model Ying MA,1 Olivier GAGLIARDINI,1 Catherine RITZ,1 on the actual state of stress and strain rate. Within an ice sheet, grounded-ice parts and ice shelves have of ice anisotropy on the flow of grounded ice and ice shelves. For this purpose, a full

  4. Journal of Glaciology, Vol. 00, No. 000, 0000 1 Enhancement factors for grounded ice and ice shelves1

    E-Print Network [OSTI]

    Durand, Gaël

    shelves1 inferred from an anisotropic ice flow model2 Ying MA,1 Olivier GAGLIARDINI,1 Catherine RITZ,1 of stress and strain-rate. Within an ice sheet, grounded ice parts and ice shelves have com-11 pletely of ice anisotropy on the flow of grounded ice and ice shelves. To this pur-14 pose, a full

  5. Method of forming clathrate ice

    DOE Patents [OSTI]

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

    1987-01-01T23:59:59.000Z

    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.

  6. Method of forming calthrate ice

    DOE Patents [OSTI]

    Hino, T.; Gorski, A.J.

    1985-09-30T23:59:59.000Z

    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.

  7. 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

    2015-01-01T23:59:59.000Z

    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.

  8. amorphous water ice: Topics by E-print Network

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

    artificial and natural icing conditions MIT - DSpace Summary: Real-time measurements of ice growth during artificial and natural icing conditions were conducted using an...

  9. amery ice shelf: Topics by E-print Network

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

    artificial and natural icing conditions MIT - DSpace Summary: Real-time measurements of ice growth during artificial and natural icing conditions were conducted using an...

  10. amorphous ice transition: Topics by E-print Network

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

    artificial and natural icing conditions MIT - DSpace Summary: Real-time measurements of ice growth during artificial and natural icing conditions were conducted using an...

  11. antarctica larsen ice: Topics by E-print Network

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

    artificial and natural icing conditions MIT - DSpace Summary: Real-time measurements of ice growth during artificial and natural icing conditions were conducted using an...

  12. alpine deep ice: Topics by E-print Network

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

    artificial and natural icing conditions MIT - DSpace Summary: Real-time measurements of ice growth during artificial and natural icing conditions were conducted using an...

  13. airborne ice sounding: Topics by E-print Network

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

    artificial and natural icing conditions MIT - DSpace Summary: Real-time measurements of ice growth during artificial and natural icing conditions were conducted using an...

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

    E-Print Network [OSTI]

    Turiel, Isaac

    2011-01-01T23:59:59.000Z

    ~saon Automatic Variable Ventilation Control Systems Based79-3 Automatic variable ventilation control systems based onof automatic variable ventilation control systems, result in

  15. Throttle And Brake Control Systems For Automatic Vehicle Following

    E-Print Network [OSTI]

    Ioannou, P.; Xu, Z.

    1994-01-01T23:59:59.000Z

    and Brake Control Systems for Automatic Vehicle Following P.and Brake Control Systems for Automatic Vehicle Following *Transit Systems, Proceedings of 1977 Joint Automatic Control

  16. 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, E-mail: Valeria.Molinero@utah.edu [Department of Chemistry, The University of Utah, 315 South 1400 East, Salt Lake City, Utah 84112-0850 (United States)

    2014-11-14T23:59:59.000Z

    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.

  17. Automatic rapid attachable warhead section

    DOE Patents [OSTI]

    Trennel, A.J.

    1994-05-10T23:59:59.000Z

    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.

  18. NOAA Technical Memorandum GLERL-135 Great Lakes Ice Cover Climatology

    E-Print Network [OSTI]

    ____________________________________________________________________________ Great Lakes Ice Cover Climatology Update: Winters 2003, 2004, and 2005 Raymond A. Assel NOAA, Great..................................................................................................6 DATES OF FIRST (LAST) ICE AND ICE DURATION. .............................................................7 SEASONAL PROGRESSION OF ICE COVER

  19. Ross Ice Shelf in situ radio-frequency ice attenuation

    E-Print Network [OSTI]

    Taylor Barrella; Steven Barwick; David Saltzberg

    2012-05-01T23:59:59.000Z

    We have measured the in situ average electric field attenuation length for radio-frequency signals broadcast vertically through the Ross Ice Shelf. We chose a location, Moore Embayment, south of Minna Bluff, known for its high reflectivity at the ice-sea interface. We confirmed specular reflection and used the return pulses to measure the average attenuation length from 75-1250 MHz over the round-trip distance of 1155 m. We find the average electric field attenuation length to vary from 500 m at 75 MHz to 300 m at 1250 MHz, with an experimental uncertainty of 55 to 15 m. We discuss the implications for neutrino telescopes that use the radio technique and include the Ross Ice Shelf as part of their sensitive volume.

  20. Ice-condenser aerosol tests

    SciTech Connect (OSTI)

    Ligotke, M.W.; Eschbach, E.J.; Winegardner, W.K. (Pacific Northwest Lab., Richland, WA (United States))

    1991-09-01T23:59:59.000Z

    This report presents the results of an experimental investigation of aerosol particle transport and capture using a full-scale height and reduced-scale cross section test facility based on the design of the ice compartment of a pressurized water reactor (PWR) ice-condenser containment system. Results of 38 tests included thermal-hydraulic as well as aerosol particle data. Particle retention in the test section was greatly influenced by thermal-hydraulic and aerosol test parameters. Test-average decontamination factor (DF) ranged between 1.0 and 36 (retentions between {approximately}0 and 97.2%). The measured test-average particle retentions for tests without and with ice and steam ranged between DF = 1.0 and 2.2 and DF = 2.4 and 36, respectively. In order to apparent importance, parameters that caused particle retention in the test section in the presence of ice were steam mole fraction (SMF), noncondensible gas flow rate (residence time), particle solubility, and inlet particle size. Ice-basket section noncondensible flows greater than 0.1 m{sup 3}/s resulted in stable thermal stratification whereas flows less than 0.1 m{sup 3}/s resulted in thermal behavior termed meandering with frequent temperature crossovers between flow channels. 10 refs., 66 figs., 16 tabs.

  1. 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

    2015-01-01T23:59:59.000Z

    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 ...

  2. Thermal Storage with Ice Harvesting Systems

    E-Print Network [OSTI]

    Knebel, D. E.

    1986-01-01T23:59:59.000Z

    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...

  3. Quantum Ice : a quantum Monte Carlo study

    E-Print Network [OSTI]

    Nic Shannon; Olga Sikora; Frank Pollmann; Karlo Penc; Peter Fulde

    2011-12-13T23:59:59.000Z

    Ice states, in which frustrated interactions lead to a macroscopic ground-state degeneracy, occur in water ice, in problems of frustrated charge order on the pyrochlore lattice, and in the family of rare-earth magnets collectively known as spin ice. Of particular interest at the moment are "quantum spin ice" materials, where large quantum fluctuations may permit tunnelling between a macroscopic number of different classical ground states. Here we use zero-temperature quantum Monte Carlo simulations to show how such tunnelling can lift the degeneracy of a spin or charge ice, stabilising a unique "quantum ice" ground state --- a quantum liquid with excitations described by the Maxwell action of 3+1-dimensional quantum electrodynamics. We further identify a competing ordered "squiggle" state, and show how both squiggle and quantum ice states might be distinguished in neutron scattering experiments on a spin ice material.

  4. Rubber friction on ice and snow surfaces 

    E-Print Network [OSTI]

    Skouvaklis, Gerasimos

    2011-06-28T23:59:59.000Z

    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 ...

  5. Automatic caption generation for news images 

    E-Print Network [OSTI]

    Feng, Yansong

    2011-06-30T23:59:59.000Z

    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 ...

  6. Developing Great Lakes Ice Model (GLIM) using CIOM (Coupled Ice-Ocean Model) in Lake Erie

    E-Print Network [OSTI]

    Developing Great Lakes Ice Model (GLIM) using CIOM (Coupled Ice- Ocean Model) in Lake Erie Primary of the ice-ocean models, assistance with development of project reports and scientific presentations will first start the implementation of the CIOM in Lake Erie, assemble satellite observations of ice cover

  7. Ice Stream C slowdown is not stabilizing West Antarctic Ice Sheet S Anandakrishnan RB Alleyy

    E-Print Network [OSTI]

    Jacobel, Robert W.

    Ice Stream C slowdown is not stabilizing West Antarctic Ice Sheet S Anandakrishnan RB Alleyy RW Jacobelz H Conwayx March 24, 1999 Abstract Changes in the flow of ice stream C likely indicate a continuing part of ice stream C, West Antarctica largely stagnated over the last few centuries, while upglacier

  8. Quenched by ice: Transient grating measurements of vibronic dynamics in bromine-doped ice

    E-Print Network [OSTI]

    Apkarian, V. Ara

    Quenched by ice: Transient grating measurements of vibronic dynamics in bromine-doped ice I. U April 2006; published online 25 May 2006 In both water and in ice, the absorption spectra of bromine of the trapped molecule in its electronic B 3 0u state in ice. Independent of the initial excitation energy

  9. New study details glacier ice loss following ice shelf July 25, 2011

    E-Print Network [OSTI]

    Cambridge, University of

    of several ice shelves in Antarctica led to acceleration of the glaciers that feed into them. CombiningNew study details glacier ice loss following ice shelf collapse July 25, 2011 Contact: Anthony Lane further demonstrates how important ice shelves are to Antarctic glaciers.' Shuman is lead author

  10. 115GLACIERS AND ICE CAPSCHAPTER 6B Glaciers and Ice Caps

    E-Print Network [OSTI]

    Fountain, Andrew G.

    115GLACIERS AND ICE CAPSCHAPTER 6B 6B Glaciers and Ice Caps Michael Zemp (lead author, Department of Sciences, China) #12;116 GLOBAL OUTLOOK FOR ICE AND SNOW Summary Glaciers and ice caps are among the most hazards. Because they are close to the melting point and react strongly to climate change, glaciers

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

    SciTech Connect (OSTI)

    Stinton, David P [ORNL; McGervey, Joseph [SRA International, Inc.; Curran, Scott [ORNL

    2011-11-01T23:59:59.000Z

    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.

  12. Formation and character of an ancient 19-m ice cover and underlying trapped brine in an ``ice-sealed'' east

    E-Print Network [OSTI]

    Priscu, John C.

    Formation and character of an ancient 19-m ice cover and underlying trapped brine in an ``ice bed year-round. New ice-core analysis and tempera- ture data show that beneath 19 m of ice is a water°C. The ice cover thickens at both its base and surface, sealing concentrated brine beneath. The ice

  13. Automatic Control Flow Generation from Software Architectures

    E-Print Network [OSTI]

    Lau, Kung-Kiu

    -time automatically. To achieve this we take a different approach to system construction. We take control out.-K. Lau and V. Ukis generic connectors, and generate control flow of the system automatically at run in different systems with different control flows. Our automatic runtime control flow generation not only

  14. Ice Cream in a Bag Ingredients

    E-Print Network [OSTI]

    Liskiewicz, Maciej

    Ice Cream in a Bag Ingredients: 1 tablespoon sugar 1/4 teaspoon vanilla extract 2 tablespoons soft fruit 1/2 cup skim milk For the freezer bag; not to be eaten: 1/3 cup rock salt Ice cubes Directions 1. Open a gallon size plastic bag. Add rock salt and fill half way up with ice. Shake to mix the salt

  15. 3, 9991020, 2007 Summer sea ice

    E-Print Network [OSTI]

    Boyer, Edmond

    CPD 3, 999­1020, 2007 Summer sea ice during the early Holocene H. Goosse et al. Title Page Abstract on the early Holocene climate constrains the summer sea ice projections for the 21st century H. Goosse, E #12;CPD 3, 999­1020, 2007 Summer sea ice during the early Holocene H. Goosse et al. Title Page

  16. 2, 879921, 2006 Ice-sheet evolution

    E-Print Network [OSTI]

    Boyer, Edmond

    CPD 2, 879­921, 2006 Ice-sheet evolution during the last climatic cycle S. Charbit et al. Title reconstructions of the Northern Hemisphere ice sheets through the last glacial-interglacial cycle S. Charbit1 , C­921, 2006 Ice-sheet evolution during the last climatic cycle S. Charbit et al. Title Page Abstract

  17. Surface Impedance Tomography for Antarctic Sea Ice

    E-Print Network [OSTI]

    Golden, Kenneth M.

    Surface Impedance Tomography for Antarctic Sea Ice C. Sampsona , K. M. Goldena , A. Gullya , A. P, Australia Abstract During the 2007 SIPEX expedition in pack ice off the coast of East Antarctica, we measured the electrical conductivity of sea ice via surface impedance tomography. Resistance data from

  18. 8, 87438771, 2008 Inhibition of ice

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    ACPD 8, 8743­8771, 2008 Inhibition of ice crystallisation B. J. Murray Title Page Abstract Chemistry and Physics Discussions Inhibition of ice crystallisation in highly viscous aqueous organic acid­8771, 2008 Inhibition of ice crystallisation B. J. Murray Title Page Abstract Introduction Conclusions

  19. 5, 37233745, 2005 characteristics of ice

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    ACPD 5, 3723­3745, 2005 Chemical characteristics of ice nuclei in anvil cirrus clouds C. H. Twohy and Physics Discussions Chemical characteristics of ice residual nuclei in anvil cirrus clouds: evidence for homogeneous and heterogeneous ice formation C. H. Twohy 1 and M. R. Poellot 2 1 College of Oceanic

  20. The convective desalination of sea ice

    E-Print Network [OSTI]

    Rees Jones, David

    2014-07-01T23:59:59.000Z

    containing both liquid brine and solid (pure water) ice. Frad is the flux of penetrating solar radiation. Thus the thermal properties of sea ice are composed of those of the solid and liquid phases that make up sea ice. Fixed-salinity models used in older...

  1. IceCube Project Monthly Report Accomplishments

    E-Print Network [OSTI]

    Saffman, Mark

    staff from UW, IceCube collaborators, and Raytheon. · Conducted a Quarterly Status Meeting at UW-loaded schedule for on-ice activities that is coordinated with the Raytheon on-ice schedules. Construction Cost accurate application of escalation rates and revisions to actual cost data. Raytheon earned value data

  2. Microwave emissivity of fresh water ice--Lake ice and Antarctic ice pack--Radiative transfer simulations versus satellite radiances

    E-Print Network [OSTI]

    Mills, Peter

    2012-01-01T23:59:59.000Z

    Microwave emissivity models of sea ice are poorly validated empirically. Typical validation studies involve using averaged or stereotyped profiles of ice parameters against averaged radiance measurements. Measurement sites are rarely matched and even less often point-by-point. Because of saline content, complex permittivity of sea ice is highly variable and difficult to predict. Therefore, to check the validity of a typical, plane-parallel, radiative-transfer-based ice emissivity model, we apply it to fresh water ice instead of salt-water ice. Radiance simulations for lake ice are compared with measurements over Lake Superior from the Advanced Microwave Scanning Radiometer on EOS (AMSR-E). AMSR-E measurements are also collected over Antarctic icepack. For each pixel, a thermodynamic model is driven by four years of European Center for Medium Range Weather Forecasts (ECMWF) reanalysis data and the resulting temperature profiles used to drive the emissivity model. The results suggest that the relatively simple ...

  3. Medical ice slurry production device

    DOE Patents [OSTI]

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

    2008-06-24T23:59:59.000Z

    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.

  4. Modeling Interfacial Liquid Layers in Environmental Ices SUPPLEMENTARY MATERIAL

    E-Print Network [OSTI]

    Meskhidze, Nicholas

    Symbol Quantity ice wf Fugacity of pure ice brine wf^ Fugacity of water in brine layer vap wf Fugacity of water in vapor space above ice wf Fugacity of pure liquid water wx Mole fraction of water in brine layer ice wH Enthalpy of ice at T, P 0,ice wH Enthalpy of ice at reference state brine wH Partial molar

  5. New ice rules for nanoconfined monolayer ice from first principles

    E-Print Network [OSTI]

    Corsetti, Fabiano; Artacho, Emilio

    2015-01-01T23:59:59.000Z

    Understanding the structural tendencies of nanoconfined water is of great interest for nanoscience and biology, where nano/micro-sized objects may be separated by very few layers of water. Here we investigate the properties of ice confined to a quasi-2D monolayer by a featureless, chemically neutral potential, using density-functional theory simulations with a non-local van der Waals density functional. An ab initio random structure search reveals all the energetically competitive monolayer configurations to belong to only two of the previously-identified families, characterized by a square or honeycomb hydrogen-bonding network, respectively. From an in-depth analysis we show that the well-known ice rules for bulk ice need to be revised for the monolayer, with distinct new rules appearing for the two networks. All identified stable phases for both are found to be non-polar (but with a topologically non-trivial texture for the square) and, hence, non-ferroelectric, in contrast to the predictions of empirical f...

  6. Hydrogen ICE Vehicle Testing Activities

    SciTech Connect (OSTI)

    J. Francfort; D. Karner

    2006-04-01T23:59:59.000Z

    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.

  7. Sea Ice Enhancements to Polar WRF* Keith M. Hines1**

    E-Print Network [OSTI]

    Howat, Ian M.

    of Arctic multi-year ice is30 decreasing with more of the ice pack represented by seasonal sea iceSea Ice Enhancements to Polar WRF* Keith M. Hines1** , David H. Bromwich,1,2 , Lesheng Bai1 to6 WRF Version 3.4 include modified Noah land surface model sea ice treatment, allowing7 specified

  8. GREAT LAKES ICE COVER RaymondA. Asset'

    E-Print Network [OSTI]

    Chapter 6 GREAT LAKES ICE COVER RaymondA. Asset' ABSTRACT: Theformation of ice on the Lallrentian (~rthe Great Lakes anel local weather and climate. The (I1Inllal seasonal and ~'Patialprogression of ice Lake (Section 6.2) incillding ice thickness, the different types of iceformed, and ice classification

  9. An Ice Lithography Instrument Anpan Han 1, John Chervinsky2

    E-Print Network [OSTI]

    Page 1 An Ice Lithography Instrument Anpan Han 1, John Chervinsky2 , Daniel Branton3 , and J. A a new nano-patterning method called ice lithography, where ice is used as the resist. Water vapor. The vapor condenses, covering the sample with an amorphous layer of ice. To form a lift-off mask, ice

  10. FAFCO Ice Storage test report

    SciTech Connect (OSTI)

    Stovall, T.K.

    1993-11-01T23:59:59.000Z

    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.

  11. Measurement of South Pole ice transparency with the IceCube LED calibration system

    E-Print Network [OSTI]

    IceCube Collaboration; M. G. Aartsen; R. Abbasi; Y. Abdou; M. Ackermann; J. Adams; J. A. Aguilar; M. Ahlers; D. Altmann; J. Auffenberg; X. Bai; M. Baker; S. W. Barwick; V. Baum; R. Bay; J. J. Beatty; S. Bechet; J. Becker Tjus; K. -H. Becker; M. Bell; M. L. Benabderrahmane; S. BenZvi; J. Berdermann; P. Berghaus; D. Berley; E. Bernardini; A. Bernhard; D. Bertrand; D. Z. Besson; G. Binder; D. Bindig; M. Bissok; E. Blaufuss; J. Blumenthal; D. J. Boersma; S. Bohaichuk; C. Bohm; D. Bose; S. Böser; O. Botner; L. Brayeur; A. M. Brown; R. Bruijn; J. Brunner; S. Buitink; M. Carson; J. Casey; M. Casier; D. Chirkin; B. Christy; K. Clark; F. Clevermann; S. Cohen; D. F. Cowen; A. H. Cruz Silva; M. Danninger; J. Daughhetee; J. C. Davis; C. De Clercq; S. De Ridder; P. Desiati; M. de With; T. DeYoung; J. C. Díaz-Vélez; M. Dunkman; R. Eagan; B. Eberhardt; J. Eisch; R. W. Ellsworth; S. Euler; P. A. Evenson; O. Fadiran; A. R. Fazely; A. Fedynitch; J. Feintzeig; T. Feusels; K. Filimonov; C. Finley; T. Fischer-Wasels; S. Flis; A. Franckowiak; R. Franke; K. Frantzen; T. Fuchs; T. K. Gaisser; J. Gallagher; L. Gerhardt; L. Gladstone; T. Glüsenkamp; A. Goldschmidt; G. Golup; J. A. Goodman; D. Góra; D. Grant; A. Groß; M. Gurtner; C. Ha; A. Haj Ismail; A. Hallgren; F. Halzen; K. Hanson; D. Heereman; P. Heimann; D. Heinen; K. Helbing; R. Hellauer; S. Hickford; G. C. Hill; K. D. Hoffman; R. Hoffmann; A. Homeier; K. Hoshina; W. Huelsnitz; P. O. Hulth; K. Hultqvist; S. Hussain; A. Ishihara; E. Jacobi; J. Jacobsen; G. S. Japaridze; K. Jero; O. Jlelati; B. Kaminsky; A. Kappes; T. Karg; A. Karle; J. L. Kelley; J. Kiryluk; F. Kislat; J. Kläs; S. R. Klein; J. -H. Köhne; G. Kohnen; H. Kolanoski; L. Köpke; C. Kopper; S. Kopper; D. J. Koskinen; M. Kowalski; M. Krasberg; G. Kroll; J. Kunnen; N. Kurahashi; T. Kuwabara; M. Labare; H. Landsman; M. J. Larson; M. Lesiak-Bzdak; J. Leute; J. Lünemann; J. Madsen; R. Maruyama; K. Mase; H. S. Matis; F. McNally; K. Meagher; M. Merck; P. Mészáros; T. Meures; S. Miarecki; E. Middell; N. Milke; J. Miller; L. Mohrmann; T. Montaruli; R. Morse; R. Nahnhauer; U. Naumann; H. Niederhausen; S. C. Nowicki; D. R. Nygren; A. Obertacke; S. Odrowski; A. Olivas; M. Olivo; A. O'Murchadha; L. Paul; J. A. Pepper; C. Pérez de los Heros; C. Pfendner; D. Pieloth; N. Pirk; J. Posselt; P. B. Price; G. T. Przybylski; L. Rädel; K. Rawlins; P. Redl; E. Resconi; W. Rhode; M. Ribordy; M. Richman; B. Riedel; J. P. Rodrigues; C. Rott; T. Ruhe; B. Ruzybayev; D. Ryckbosch; S. M. Saba; T. Salameh; H. -G. Sander; M. Santander; S. Sarkar; K. Schatto; M. Scheel; F. Scheriau; T. Schmidt; M. Schmitz; S. Schoenen; S. Schöneberg; L. Schönherr; A. Schönwald; A. Schukraft; L. Schulte; O. Schulz; D. Seckel; S. H. Seo; Y. Sestayo; S. Seunarine; C. Sheremata; M. W. E. Smith; M. Soiron; D. Soldin; G. M. Spiczak; C. Spiering; M. Stamatikos; T. Stanev; A. Stasik; T. Stezelberger; R. G. Stokstad; A. Stößl; E. A. Strahler; R. Ström; G. W. Sullivan; H. Taavola; I. Taboada; A. Tamburro; S. Ter-Antonyan; S. Tilav; P. A. Toale; S. Toscano; M. Usner; D. van der Drift; N. van Eijndhoven; A. Van Overloop; J. van Santen; M. Vehring; M. Voge; M. Vraeghe; C. Walck; T. Waldenmaier; M. Wallraff; R. Wasserman; Ch. Weaver; M. Wellons; C. Wendt; S. Westerhoff; N. Whitehorn; K. Wiebe; C. H. Wiebusch; D. R. Williams; H. Wissing; M. Wolf; T. R. Wood; C. Xu; D. L. Xu; X. W. Xu; J. P. Yanez; G. Yodh; S. Yoshida; P. Zarzhitsky; J. Ziemann; S. Zierke; A. Zilles; M. Zoll

    2013-01-22T23:59:59.000Z

    The IceCube Neutrino Observatory, approximately 1 km^3 in size, is now complete with 86 strings deployed in the Antarctic ice. IceCube detects the Cherenkov radiation emitted by charged particles passing through or created in the ice. To realize the full potential of the detector, the properties of light propagation in the ice in and around the detector must be well understood. This report presents a new method of fitting the model of light propagation in the ice to a data set of in-situ light source events collected with IceCube. The resulting set of derived parameters, namely the measured values of scattering and absorption coefficients vs. depth, is presented and a comparison of IceCube data with simulations based on the new model is shown.

  12. Ice Shelf Water plume flow beneath Filchner-Ronne Ice Shelf, Antarctica

    E-Print Network [OSTI]

    Feltham, Daniel

    the thinning of Pine Island Glacier in West Antarctica and the collapse of parts of the Larsen Ice Shelf temperature variation is called the ``ice pump'' [Lewis and Perkin, 1983; Jenkins and Bombosch, 1995]. [5

  13. Controlling ice nucleation through surface hydrophilicity

    E-Print Network [OSTI]

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

    2015-01-08T23:59:59.000Z

    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 physiochemical properties of a material's surface affects its ability to form ice has remained elusive. Here we use molecular dynamics simulations to directly probe heterogeneous ice nucleation at an 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.

  14. 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

    . The combination of the SAR imagery and ULS observations also allow measurement of the pack ice advection velocityObservations of ice thickness and frazil ice in the St. Lawrence Island polynya from satellite define a thermal ice thickness from the AVHRR retrieval of ice surface temperature combined

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

    E-Print Network [OSTI]

    102 INDICATOR: LAKE ERIE ICE COVER Background Winter ice cover on Lake Erie affects the amount of heat and moisture transferred between the lake and the atmosphere. During winter, ice and snow can decrease the amount of light available below the ice surface for photosynthesis. In the absence of an ice

  16. 4, 107128, 2007 Sea-ice-drift

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    OSD 4, 107­128, 2007 Sea-ice-drift dynamics and pack fracture A. Chmel et al. Title Page Abstract aspects of the sea-ice-drift dynamics and pack fracture A. Chmel 1 , V. N. Smirnov 2 , and L. V. Panov 2 1 to: A. Chmel (chmel@mail.ioffe.ru) 107 #12;OSD 4, 107­128, 2007 Sea-ice-drift dynamics and pack

  17. Summer ICE@Tech Computing Camps

    E-Print Network [OSTI]

    Guzdial, Mark

    Summer ICE@Tech Computing Camps Session I: June 5th - June 9th Session II: July 10th ­ July 14th (404) 385-2273 Fax (404) 385-0965 http://www.cc.gatech.edu/campice 1 #12;2 Summer ICE@Tech Program Handbook #12;3 Summer ICE@Tech is a computing and technology program for students entering 10th , 11th

  18. H2 ICE Combustion | Argonne National Laboratory

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

    H2 ICE Combustion Share Description Hydrogen combustion inside a direct injection H2 engine Topic Energy Energy efficiency Vehicles Hydrogen & fuel cells Credit S. Ciatti This...

  19. Viscosity of interfacial water regulates ice nucleation

    SciTech Connect (OSTI)

    Li, Kaiyong; Chen, Jing; Zhang, Qiaolan; Zhang, Yifan [Beijing National Laboratory for Molecular Sciences (BNLMS), Key Laboratory of Green Printing, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190 (China) [Beijing National Laboratory for Molecular Sciences (BNLMS), Key Laboratory of Green Printing, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190 (China); University of Chinese Academy of Sciences, Beijing 100049 (China); Xu, Shun; Zhou, Xin [School of Physics, University of Chinese Academy of Sciences, Beijing 100049 (China)] [School of Physics, University of Chinese Academy of Sciences, Beijing 100049 (China); Cui, Dapeng; Wang, Jianjun, E-mail: wangj220@iccas.ac.cn; Song, Yanlin [Beijing National Laboratory for Molecular Sciences (BNLMS), Key Laboratory of Green Printing, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190 (China)] [Beijing National Laboratory for Molecular Sciences (BNLMS), Key Laboratory of Green Printing, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190 (China)

    2014-03-10T23:59:59.000Z

    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.

  20. Dynamics of colloidal particles in ice

    E-Print Network [OSTI]

    Melissa Spannuth; S. G. J. Mochrie; S. S. L. Peppin; J. S. Wettlaufer

    2010-12-31T23:59:59.000Z

    We use X-ray Photon Correlation Spectroscopy (XPCS) to probe the dynamics of colloidal particles in polycrystalline ice. During freezing, the dendritic ice morphology and rejection of particles from the ice created regions of high-particle-density, where some of the colloids were forced into contact and formed disordered aggregates. We find that the particles in these high density regions underwent ballistic motion coupled with both stretched and compressed exponential decays of the intensity autocorrelation function, and that the particles' characteristic velocity increased with temperature. We explain this behavior in terms of ice grain boundary migration.

  1. BISICLES Captures Details of Retreating Antarctic Ice

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

    of Retreating Antarctic Ice March 30, 2013 | Tags: Climate Research, Hopper, Math & Computer Science Contact: Linda Vu, lvu@lbl.gov, +1 510 495 2402 Berkeley Lab Contributes...

  2. Past Accumulation Rates of the Western Antarctic Ice Sheet Near an Ice Divide 

    E-Print Network [OSTI]

    Child, Sarah

    2009-08-12T23:59:59.000Z

    The study of accumulation rates of ice is a direct link to the evolution of ice sheet. It is believed by scientists that ice sheet evolution will aid in the mystery of climate change and may lead to predictions about climates in the future...

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

    E-Print Network [OSTI]

    Satellite SAR Remote Sensing of Great Lakes Ice Cover, Part 2. Ice Classification and Mapping° to 60° for all polarizations, was processed to radar cross-section to establish a library of signatures (look-up table) for different ice types. The library is used in the computer classifica- tion

  4. white paper, 9 March 2009 An ice core to reconstruct Greenland ice sheet mass balance

    E-Print Network [OSTI]

    Box, Jason E.

    white paper, 9 March 2009 1 An ice core to reconstruct Greenland a handful of years suggest a profound Greenland ice sheet mass balance sensitivity (2000) found that the Greenland ice sheet lost as much as 2/3 its current

  5. Conceptualisations of citizenship in Sweden and the United Kingdom: an empirical study and analysis of how ‘citizenship’ is understood in policy and by policy-makers

    E-Print Network [OSTI]

    McIver, Scott Iain

    2010-01-01T23:59:59.000Z

    This empirical study identifies and analyses what conceptualisations of citizenship emerge in policy thinking around naturalisation and how these conceptualisations have been articulated in citizenship policy and by policy-makers in the two specific...

  6. 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

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

    SciTech Connect (OSTI)

    Reed, A. L.

    2012-05-01T23:59:59.000Z

    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.

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

    E-Print Network [OSTI]

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

    2004-01-01T23:59:59.000Z

    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...

  9. Hail Ice Damage of Stringer-Stiffened Curved Composite Panels /

    E-Print Network [OSTI]

    Le, Jacqueline Linh

    2013-01-01T23:59:59.000Z

    Damage. Composite Structures 2003;62:213–21. Ice Drop.How to make clear ice. 28 February 2011. Victoria, BC,2011/02/how-to- make-clear-ice-that-actually-works/ Graham,

  10. Dust takes detour on ice-cloud journey | EMSL

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

    Dust takes detour on ice-cloud journey Dust takes detour on ice-cloud journey Pollution-coated particles bypass ice formation, but influence clouds Cirrus clouds are composed of...

  11. Sandia National Laboratories: Ice-Sheet Simulation Code Matures...

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

    Research & Capabilities Ice-flow velocity magnitude myr on the surface of the Greenland Ice Sheet, as computed by the AlbanyFELIX finite element code. Ice-flow velocity...

  12. 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

    2009-10-01T23:59:59.000Z

    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?

  13. The Patty Ice Arena User Responsibilities and Conduct is designed to create better communication between the patrons of the Patty Ice Arena and the Facilities Services' Patty Ice

    E-Print Network [OSTI]

    Wagner, Diane

    PURPOSE: The Patty Ice Arena User Responsibilities and Conduct is designed to create better communication between the patrons of the Patty Ice Arena and the Facilities Services' Patty Ice Arena management or other misuse of any part of the Patty Ice Arena may result in an individual, team, or organization being

  14. Heterogeneous Nucleation of Ice on Anthropogenic Organic Particles...

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

    Nucleation of Ice on Anthropogenic Organic Particles Collected in Mexico City. Heterogeneous Nucleation of Ice on Anthropogenic Organic Particles Collected in Mexico City....

  15. Heterogeneous ice nucleation and water uptake by field-collected...

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

    ice nucleation and water uptake by field-collected atmospheric particles below 273 K. Heterogeneous ice nucleation and water uptake by field-collected atmospheric particles below...

  16. Crystalline Ice Growth on Pt(111): Observation of a Hydrophobic...

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

    Crystalline Ice Growth on Pt(111): Observation of a Hydrophobic Water Monolayer. Crystalline Ice Growth on Pt(111): Observation of a Hydrophobic Water Monolayer. Abstract: The...

  17. The dependence of ice microphysics on aerosol concentration in...

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

    The dependence of ice microphysics on aerosol concentration in arctic mixed-phase stratus clouds during ISDAC and M-PACE. The dependence of ice microphysics on aerosol...

  18. 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...

  19. Automatic Eyeglasses Removal from Face Images

    E-Print Network [OSTI]

    Narasayya, Vivek

    Automatic Eyeglasses Removal from Face Images Chenyu Wu, Ce Liu, Heung-Yueng Shum, Member, IEEE an intelligent image editing and face synthesis system that automatically removes eyeglasses from an input frontal face image. Although conventional image editing tools can be used to remove eyeglasses by pixel

  20. Department of Computer Science AUTOMATIC VERIFICATION OF

    E-Print Network [OSTI]

    Oxford, University of

    Department of Computer Science AUTOMATIC VERIFICATION OF COMPETITIVE STOCHASTIC SYSTEMS Taolue Chen Automatic verification techniques for probabilistic systems have been success- fully applied in a variety systems also exhibit non- deterministic behaviour, e.g. due to concurrency, underspecification or control

  1. Unlocking a Sea Ice Secret

    SciTech Connect (OSTI)

    Dr. Rachel Obbard

    2013-04-22T23:59:59.000Z

    Dr. Rachel Obbard and her research group from Dartmouth College traveled to the Antarctic to collect samples of sea ice. Next stop: the GeoSoilEnviroCARS x-ray beamline at the Advanced Photon Source at Argonne National Laboratory in Illinois. This U.S. Department of Energy Office of Science synchrotron x-ray research facility gave the Obbard team the frontier scientific tools they needed to study the path bromide takes as it travels from the ocean to the atmosphere.

  2. ARM - Measurement - Cloud ice particle

    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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625govInstrumentstdmadap Documentation TDMADAP : XDC documentationBarrow,ice particle ARM Data Discovery Browse Data

  3. ARM - Measurement - Ice water content

    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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625govInstrumentstdmadap Documentation TDMADAP : XDC documentationBarrow,ice particleSize Distributiontypes

  4. ARM - Measurement - Ice water path

    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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625govInstrumentstdmadap Documentation TDMADAP : XDC documentationBarrow,ice particleSize Distributiontypespath ARM

  5. 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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625govInstrumentstdmadap Documentation TDMADAP :ProductsVaisalaAlaskaInstruments NSASteeringContactsTWP-ICE Maps

  6. Ice Energy | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are8COaBulkTransmissionSitingProcess.pdfGetecGtel JumpCounty, Texas:ITC Transmission Jump to: navigation,IbervilleIce

  7. Passive ice freezing-releasing heat pipe

    DOE Patents [OSTI]

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

    1982-01-01T23:59:59.000Z

    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.

  8. IceCube Project Monthly Report Accomplishments

    E-Print Network [OSTI]

    Saffman, Mark

    ;3 The latest revised estimates were modified to reflect the anticipated changes resulting from the Raytheon in Raytheon Polar Services completing the IceCube Laboratory. $1 million is from the lagging receipts. The on-ice Integrated Master Schedule is underway and being worked on this week with Raytheon Polar

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

    E-Print Network [OSTI]

    Turiel, Isaac

    2011-01-01T23:59:59.000Z

    saon Automatic Variable Ventilation Control Systems Based onL Kusuda, "Control Ventilation to Conserve Energy While t·79-3 Automatic variable ventilation control systems based on

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

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

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

  11. automatic intruder monitoring: Topics by E-print Network

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

    increasingly attractive Wright , Matthew 3 Automatic Monitor Mixing for Live Musical Performance* Engineering Websites Summary: Automatic Monitor Mixing for Live Musical...

  12. automatic transmission system: Topics by E-print Network

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

    and toolset for automatic generation of hypertext system repositories. Our code generator, called and a supporting toolset to automatically generate hypertext system...

  13. automatic watering based: Topics by E-print Network

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

    Extended Kumar, Ratnesh 52 An Automatic Load Sharing Approach for a DFIG Based Wind Generator in a Microgrid Engineering Websites Summary: An Automatic Load Sharing Approach...

  14. Pressurized Pepsin Digestion in Proteomics: An Automatable Alternative...

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

    Pepsin Digestion in Proteomics: An Automatable Alternative to Trypsin for Integrated Top-down Bottom-up Proteomics. Pressurized Pepsin Digestion in Proteomics: An Automatable...

  15. automatic control: Topics by E-print Network

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

    automatic or controlled processing, depending Logan, Gordon D. 38 Declarative Camera Control for Automatic Cinematography CiteSeer Summary: Animations generated by interactive...

  16. automatic ph control: Topics by E-print Network

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

    automatic or controlled processing, depending Logan, Gordon D. 40 Declarative Camera Control for Automatic Cinematography CiteSeer Summary: Animations generated by interactive...

  17. automatic vessel control: Topics by E-print Network

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

    automatic or controlled processing, depending Logan, Gordon D. 49 Declarative Camera Control for Automatic Cinematography CiteSeer Summary: Animations generated by interactive...

  18. automatic exposure control: Topics by E-print Network

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

    automatic or controlled processing, depending Logan, Gordon D. 44 Declarative Camera Control for Automatic Cinematography CiteSeer Summary: Animations generated by interactive...

  19. automatic control rod: Topics by E-print Network

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

    automatic or controlled processing, depending Logan, Gordon D. 47 Declarative Camera Control for Automatic Cinematography CiteSeer Summary: Animations generated by interactive...

  20. automatic control estrategias: Topics by E-print Network

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

    automatic or controlled processing, depending Logan, Gordon D. 38 Declarative Camera Control for Automatic Cinematography CiteSeer Summary: Animations generated by interactive...

  1. automatic controllers: Topics by E-print Network

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

    automatic or controlled processing, depending Logan, Gordon D. 38 Declarative Camera Control for Automatic Cinematography CiteSeer Summary: Animations generated by interactive...

  2. automatic archaeological feature: Topics by E-print Network

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

    Nancy2 University NASA Ames robots to automatically detect features. Hid- den Markov Models have been used for a long time in pattern 28 Adaptive Automatic Facial Feature...

  3. automatically constructed fuzzy: Topics by E-print Network

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

    birds, BirdID imitates bird experts to automatically direct Yao, Xin 16 Automatic Design of Hierarchical Fuzzy Controllers Using Genetic Algorithms Engineering Websites...

  4. Parameterizing Size Distribution in Ice Clouds

    SciTech Connect (OSTI)

    DeSlover, Daniel; Mitchell, David L.

    2009-09-25T23:59:59.000Z

    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. Automatic insulation resistance testing apparatus

    DOE Patents [OSTI]

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

    2005-06-14T23:59:59.000Z

    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.

  6. Automatic Mechetronic Wheel Light Device

    DOE Patents [OSTI]

    Khan, Mohammed John Fitzgerald (Silver Spring, MD)

    2004-09-14T23:59:59.000Z

    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.

  7. Theory of ice-skating

    E-Print Network [OSTI]

    Berre, Martine Le

    2015-01-01T23:59:59.000Z

    Almost frictionless skating on ice relies on a thin layer of melted water insulating mechanically the blade of the skate from ice. Using the basic equations of fluid mechanics and Stefan law, we derive a set of two coupled equations for the thickness of the film and the length of contact, a length scale which cannot be taken as its value at rest. The analytical study of these equations allows to define a small a-dimensional parameter depending on the longitudinal coordinate which can be neglected everywhere except close to the contact points at the front and the end of the blade, where a boundary layer solution is given. This solution provides without any calculation the order of magnitude of the film thickness, and its dependence with respect to external parameters like the velocity and mass of the skater and the radius of profile and bite angle of the blade, in good agreement with the numerical study. Moreover this solution also shows that a lubricating water layer of macroscopic thickness always exists for...

  8. Magnetic Monopoles in Spin Ice

    E-Print Network [OSTI]

    Claudio Castelnovo; Roderich Moessner; Shivaji L. Sondhi

    2007-10-31T23:59:59.000Z

    Electrically charged particles, such as the electron, are ubiquitous. By contrast, no elementary particles with a net magnetic charge have ever been observed, despite intensive and prolonged searches. We pursue an alternative strategy, namely that of realising them not as elementary but rather as emergent particles, i.e., as manifestations of the correlations present in a strongly interacting many-body system. The most prominent examples of emergent quasiparticles are the ones with fractional electric charge e/3 in quantum Hall physics. Here we show that magnetic monopoles do emerge in a class of exotic magnets known collectively as spin ice: the dipole moment of the underlying electronic degrees of freedom fractionalises into monopoles. This enables us to account for a mysterious phase transition observed experimentally in spin ice in a magnetic field, which is a liquid-gas transition of the magnetic monopoles. These monopoles can also be detected by other means, e.g., in an experiment modelled after the celebrated Stanford magnetic monopole search.

  9. 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.

  10. First data from DM-Ice17

    E-Print Network [OSTI]

    DM-Ice Collaboration; :; J. Cherwinka; D. Grant; F. Halzen; K. M. Heeger; L. Hsu; A. J. F. Hubbard; A. Karle; M. Kauer; V. A. Kudryavtsev; C. Macdonald; R. H. Maruyama; S. Paling; W. Pettus; Z. P. Pierpoint; B. N. Reilly; M. Robinson; P. Sandstrom; N. J. C. Spooner; S. Telfer; L. Yang

    2014-11-13T23:59:59.000Z

    We report the first analysis of background data from DM-Ice17, a direct-detection dark matter experiment consisting of 17 kg of NaI(Tl) target material. It was codeployed with IceCube 2457 m deep in the South Pole glacial ice in December 2010 and is the first such detector operating in the Southern Hemisphere. The background rate in the 6.5 - 8.0 keVee region is measured to be 7.9 +/- 0.4 counts/day/keV/kg. This is consistent with the expected background from the detector assemblies with negligible contributions from the surrounding ice. The successful deployment and operation of DM-Ice17 establishes the South Pole ice as a viable location for future underground, low-background experiments in the Southern Hemisphere. The detector assembly and deployment are described here, as well as the analysis of the DM-Ice17 backgrounds based on data from the first two years of operation after commissioning, July 2011 - June 2013.

  11. First Data from DM-Ice17

    E-Print Network [OSTI]

    :,; Grant, D; Halzen, F; Heeger, K M; Hsu, L; Hubbard, A J F; Karle, A; Kauer, M; Kudryavtsev, V A; Maruyama, R H; MacDonald, C; Paling, S; Pettus, W C; Pierpoint, Z P; Reilly, B N; Robinson, M; Sandstrom, P; Spooner, N J C; Telfer, S; Yang, L

    2014-01-01T23:59:59.000Z

    We report the first analysis of background data from DM-Ice17 a direct-detection dark matter experiment consisting of 17 kg of NaI(Tl) target material. It was successfully deployed 2457 m deep in South Pole glacial ice at the bottom of two IceCube strings in December 2010 and is the first such detector to be operating in the Southern Hemisphere. Data from the first two years of operation after commissioning, July 2011 - June 2013, are presented here. The background rate in the 6.5 - 8.0 kevee region is measured to be 7.9 +/- 0.4 counts/day/keV/kg. This is in agreement with the expected background from the crystal assemblies and is consistent with simulation. Background contributions from the surrounding ice were demonstrated to be negligible. The successful deployment and operation of DM-Ice17 establishes the South Pole ice as a location for future underground, low-background experiments in the Southern Hemisphere. The detector assembly, deployment, and analysis of the DM-Ice17 backgrounds are described.

  12. Modelling Sea Ice Growth Mark J. McGuinness

    E-Print Network [OSTI]

    McGuinness, Mark

    salinity. The saltier the brine, the lower the freezing point. When salinity is above the critical value is rejected by growing ice as a dense brine, but the brine cannot escape as rapidly as heat at the ice, trapping brine in the ice-brine mixture. This constitutional supercooling causes the ice-ocean interface

  13. Introduction Microorganisms in sea ice function ecologically in the

    E-Print Network [OSTI]

    Stewart, Frank

    of the pack via brine drainage, ice melting, or ice break-up (Garrison & Buck 1989 and references thereinIntroduction Microorganisms in sea ice function ecologically in the Antarctic marine ecosystem where pelagic and sea ice habitats are intrinsically coupled (Laws 1985, Garrison 1991, Eicken 1992

  14. FIRST PRINCIPLES MODELING FOR LIDAR SENSING OF COMPLEX ICE SURFACES

    E-Print Network [OSTI]

    Kerekes, John

    FIRST PRINCIPLES MODELING FOR LIDAR SENSING OF COMPLEX ICE SURFACES J. Kerekes, A. Goodenough, S of monitoring the dynamics and mass balance of glaciers, ice caps, and ice sheets. However, it is also known that ice surfaces can have complex 3-dimensional structure, which can challenge their accurate retrieval

  15. Microstructure through an ice sheet Tobias Binder1, a

    E-Print Network [OSTI]

    Garbe, Christoph S.

    Microstructure through an ice sheet Tobias Binder1, a , Ilka Weikusat2, b , Johannes Freitag2, c.Garbe@iwr.uni-heidelberg.de, e Dietmar.Wagenbach@iup.uni-heidelberg.de, f Sepp.Kipfstuhl@awi.de Keywords: Ice, microstructure characterization, grain boundary curvature, image processing Abstract. Ice cores through an ice sheet can

  16. ORIGINAL ARTICLE Diatom assemblages promote ice formation in large

    E-Print Network [OSTI]

    Lee Jr., Richard E.

    ORIGINAL ARTICLE Diatom assemblages promote ice formation in large lakes NA D'souza1,3 , Y evidence for the directed formation of ice by planktonic communities dominated by filamentous diatoms sampled from the ice-covered Laurentian Great Lakes. We hypothesize that ice formation promotes attachment

  17. Age characteristics in a multidecadal Arctic sea ice simulation

    SciTech Connect (OSTI)

    Hunke, Elizabeth C [Los Alamos National Laboratory; Bitz, Cecllia M [UNIV. OF WASHINGTON

    2008-01-01T23:59:59.000Z

    Results from adding a tracer for age of sea ice to a sophisticated sea ice model that is widely used for climate studies are presented. The consistent simulation of ice age, dynamics, and thermodynamics in the model shows explicitly that the loss of Arctic perennial ice has accelerated in the past three decades, as has been seen in satellite-derived observations. Our model shows that the September ice age average across the Northern Hemisphere varies from about 5 to 8 years, and the ice is much younger (about 2--3 years) in late winter because of the expansion of first-year ice. We find seasonal ice on average comprises about 5% of the total ice area in September, but as much as 1.34 x 10{sup 6} km{sup 2} survives in some years. Our simulated ice age in the late 1980s and early 1990s declined markedly in agreement with other studies. After this period of decline, the ice age began to recover, but in the final years of the simulation very little young ice remains after the melt season, a strong indication that the age of the pack will again decline in the future as older ice classes fail to be replenished. The Arctic ice pack has fluctuated between older and younger ice types over the past 30 years, while ice area, thickness, and volume all declined over the same period, with an apparent acceleration in the last decade.

  18. Dynamics of Ice Nucleation on Water Repellent Surfaces Azar Alizadeh,*,

    E-Print Network [OSTI]

    Dhinojwala, Ali

    for nonicing applications. 1. INTRODUCTION Ice accretion on surfaces of aircraft, wind turbine blades, oil

  19. Self-excited oscillations in sea ice and evaluation of the ice forces

    SciTech Connect (OSTI)

    Smirnov, V.N. [Arctic and Antarctic Research Inst., St. Petersburg (Russian Federation)

    1996-12-01T23:59:59.000Z

    The processes of the dynamical interactions of the ice are described. Special attention is given to the self-excited oscillating processes when the ice goes through periodical deformations similar to these which appear in the structures in the sea ice. The range of the self-excited oscillations periods is from 0.1 s to 20 s. The jump-like processes transform themselves into the quasi-harmonical ones up to sound frequency range. For comparison purposes the spectra of the frictional self-excited oscillations in the glaciers are presented. An iceberg interacting with the drifting ice also forms self-excited oscillating system with period of up to 10 s. An example of numerical evaluation of the forces of interaction between a drifting ice island and the sea ice is given.

  20. RGPS/Model Ice Deformation July 3, 2003 1 Sea Ice Deformation Rates From Satellite Measurements and in a Model

    E-Print Network [OSTI]

    Lindsay, Ron

    of the Arctic geophysical environment. The deformation rate of pack ice, determined from the spatial gradientsRGPS/Model Ice Deformation July 3, 2003 1 Sea Ice Deformation Rates From Satellite Measurements The deformation of sea ice is an important element of the Arctic climate system because of its influence

  1. Communication: On the stability of ice 0, ice i, and I h D. Quigley, D. Alf, and B. Slater

    E-Print Network [OSTI]

    Alfè, Dario

    Communication: On the stability of ice 0, ice i, and I h D. Quigley, D. Alfè, and B. Slater (2014) Communication: On the stability of ice 0, ice i, and Ih D. Quigley,1,a) D. Alfè,2 and B. Slater3

  2. ice-surface lowering or some regional climate change induced by ice-surface lowering. If attributed solely to a

    E-Print Network [OSTI]

    Flint-Garcia, Sherry

    ice-surface lowering or some regional climate change induced by ice-surface lowering. If attributed solely to a change in ice-surface elevation, the 3° to 4°C warming at Siple Dome (16) would indicate 500 to 650 m of ice-surface lowering, assuming a free atmospheric lapse rate of 6°C per 1000 m

  3. 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

  4. Automatic 5-axis NC toolpath generation

    E-Print Network [OSTI]

    Balasubramaniam, Mahadevan, 1976-

    2001-01-01T23:59:59.000Z

    Despite over a decade of research, automatic toolpath generation has remained an elusive goal for 5-axis NC machining. This thesis describes the theoretical and practical issues associated with generating collision free ...

  5. Automatic tuning of continuous-time filters 

    E-Print Network [OSTI]

    Sumesaglam, Taner

    2004-11-15T23:59:59.000Z

    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...

  6. 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

  7. Automatic tuning of continuous-time filters

    E-Print Network [OSTI]

    Sumesaglam, Taner

    2004-11-15T23:59:59.000Z

    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...

  8. The Phases of Water Ice in the Solar Nebula

    E-Print Network [OSTI]

    Ciesla, Fred J

    2014-01-01T23:59:59.000Z

    Understanding the phases of water ice that were present in the solar nebula has implications for understanding cometary and planetary compositions as well as internal evolution of these bodies. Here we show that amorphous ice formed more readily than previously recognized, with formation at temperatures 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.

  9. Automatic safety rod for reactors. [LMFBR

    DOE Patents [OSTI]

    Germer, J.H.

    1982-03-23T23:59:59.000Z

    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.

  10. Automatic well log correlation using neural networks

    E-Print Network [OSTI]

    Habiballah, Walid Abdulrahim

    1991-01-01T23:59:59.000Z

    AUTOMATIC WELL LOG CORRELATION USING NEURAL NETWORKS A Thesis by WALID ABDULHAHIM HABIBALLAH Submitted to the Office of Graduate Studies of Texas AaM University in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE... August 1991 Major Subject; Petroleum Engineering AUTOMATIC WELL LOG CORRELATION USING NEURAL NETWORKS A Thesis by WALID ABDULRAHIM HABIBALLAH Approved as to style and content by: R. A. St tzman (Chair of Committee) S. W. Poston (Member) R. R...

  11. Observations of the Askaryan Effect in Ice

    SciTech Connect (OSTI)

    Gorham, P.W.

    2007-01-16T23:59:59.000Z

    We report on the first observations of the Askaryan effect in ice: coherent impulsive radio Cherenkov radiation from the charge asymmetry in an electromagnetic (EM) shower. Such radiation has been observed in silica sand and rock salt, but this is the first direct observation from an EM shower in ice. These measurements are important since the majority of experiments to date that rely on the effect for ultra-high energy neutrino detection are being performed using ice as the target medium. As part of the complete validation process for the Antarctic Impulsive Transient Antenna (ANITA) experiment, we performed an experiment at the Stanford Linear Accelerator Center (SLAC) in June 2006 using a 7.5 metric ton ice target, yielding results fully consistent with theoretical expectations.

  12. Neutrino Oscillation Measurements with IceCube

    E-Print Network [OSTI]

    Carsten Rott; for the IceCube Collaboration

    2008-10-20T23:59:59.000Z

    We present preliminary results for a neutrino oscillation analysis in progress on data collected with the IceCube 22-string detector during 2007 and 2008. The goal of this analysis is to measure muon neutrino disappearance as a function of energy for a constant baseline length of the diameter of the Earth by studying vertically up-going muon neutrinos. At this baseline disappearance effects are expected to become sizable at neutrino energies below 100 GeV. This energy range has not been previously explored with IceCube, however due to IceCube's vertical geometry there is some sensitivity for this specific class of events. Based on preliminary selection criteria, we show that IceCube has the potential to detect these events and we estimate the sensitivity to determining oscillation parameters.

  13. Scattering Properties of Oriented Hexagonal Ice Crystals

    E-Print Network [OSTI]

    Zhang, Feng

    2010-01-14T23:59:59.000Z

    To interpret the data from spaceborn lidar measurements, one must have a basic understanding of the backscattering of oriented ice particles. The conventional raytracing method is not applicable to the scattering of light by oriented particles...

  14. Observations of the Askaryan Effect in Ice

    E-Print Network [OSTI]

    ANITA collaboration; P. W. Gorham; S. W. Barwick; J. J. Beatty; D. Z. Besson; W. R. Binns; C. Chen; P. Chen; J. M. Clem; A. Connolly; P. F. Dowkontt; M. A. DuVernois; R. C. Field; D. Goldstein; A. Goodhue; C. Hast; C. L. Hebert; S. Hoover; M. H. Israel; J. Kowalski; J. G. Learned; K. M. Liewer; J. T. Link; E. Lusczek; S. Matsuno; B. Mercurio; C. Miki; P. Miocinovic; J. Nam; C. J. Naudet; J. Ng; R. Nichol; K. Palladino; K. Reil; A. Romero-Wolf; M. Rosen; D. Saltzberg; D. Seckel; G. S. Varner; D. Walz; F. Wu

    2007-01-12T23:59:59.000Z

    We report on the first observations of the Askaryan effect in ice: coherent impulsive radio Cherenkov radiation from the charge asymmetry in an electromagnetic (EM) shower. Such radiation has been observed in silica sand and rock salt, but this is the first direct observation from an EM shower in ice. These measurements are important since the majority of experiments to date that rely on the effect for ultra-high energy neutrino detection are being performed using ice as the target medium. As part of the complete validation process for the Antarctic Impulsive Transient Antenna (ANITA) experiment, we performed an experiment at the Stanford Linear Accelerator Center (SLAC) in June 2006 using a 7.5 metric ton ice target, yielding results fully consistent with theoretical expectations.

  15. Observations of the Askaryan Effect in Ice

    E-Print Network [OSTI]

    Barwick, S W; Besson, D Z; Binns, W R; Chen, P; Clem, J M; Connolly, A; Dowkontt, P F; Duvernois, M A; Field, R C; Goldstein, D; Goodhue, A; Gorham, P W; Hast, C; Hebert, C L; Hoover, S; Israel, M H; Kowalski, J; Learned, J G; Liewer, K M; Link, J T; Lusczek, E; Matsuno, S; Mercurio, B; Miki, C; Miocinovic, P; Nam, J; Naudet, C J; Ng, J; Nichol, R; Palladino, K J; Reil, K; Romero-Wolf, A; Rosen, M; Saltzberg, D; Secke, D; Varner, G S; Walz, D; Wu, F

    2006-01-01T23:59:59.000Z

    We report on the first observations of the Askaryan effect in ice: coherent impulsive radio Cherenkov radiation from the charge asymmetry in an electromagnetic (EM) shower. Such radiation has been observed in silica sand and rock salt, but this is the first direct observation from an EM shower in ice. These measurements are important since the majority of experiments to date that rely on the effect for ultra-high energy neutrino detection are being performed using ice as the target medium. As part of the complete validation process for the Antarctic Impulsive Transient Antenna (ANITA) experiment, we performed an experiment at the Stanford Linear Accelerator Center (SLAC) in June 2006 using a 7.5 metric ton ice target, yielding results fully consistent with theoretical expectations.

  16. Weakening of ice by magnesium perchlorate hydrate

    E-Print Network [OSTI]

    Lenferink, Hendrik J., 1985-

    2012-01-01T23:59:59.000Z

    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 ...

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

    E-Print Network [OSTI]

    2013-01-01T23:59:59.000Z

    Subglacial topography inferred from ice surface ter- rainSubglacial topography inferred from ice surface ter- rainsurface eleva- tion, ice thickness and subglacial topography

  18. Spread of ice mass loss into northwest Greenland observed by GRACE and GPS

    E-Print Network [OSTI]

    Khan, Shfaqat Abbas; Wahr, John; Bevis, Michael; Velicogna, Isabella; Kendrick, Eric

    2010-01-01T23:59:59.000Z

    oscillations and seasonal ice mass fluctuations, Eos Trans.2007), Rapid changes in ice discharge from Greenland outletW. et al. (2004), Greenland Ice Sheet: Increased coastal

  19. Regelation: why does ice melt under pressure?

    E-Print Network [OSTI]

    Chang Q Sun

    2015-01-28T23:59:59.000Z

    Unlike other unusual materials whose bonds contract under compression, the O:H nonbond undergoes contraction and the H-O bond elongation towards O:H and H-O length symmetry in water and ice. The energy drop of the H-O bond dictates the melting point Tm depression of ice. Once the pressure is relieved, the O:H-O bond fully recovers its initial state, resulting in Regelation.

  20. Regelation: why does ice melt under pressure?

    E-Print Network [OSTI]

    Sun, Chang Q

    2015-01-01T23:59:59.000Z

    Unlike other unusual materials whose bonds contract under compression, the O:H nonbond undergoes contraction and the H-O bond elongation towards O:H and H-O length symmetry in water and ice. The energy drop of the H-O bond dictates the melting point Tm depression of ice. Once the pressure is relieved, the O:H-O bond fully recovers its initial state, resulting in Regelation.

  1. Development of a Mobile Ice Nucleus Counter

    SciTech Connect (OSTI)

    Kok, Gregory; Kulkarni, Gourihar

    2014-07-10T23:59:59.000Z

    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.

  2. First Results from IceCube

    E-Print Network [OSTI]

    Spencer R. Klein; for the IceCube Collaboration

    2006-01-12T23:59:59.000Z

    IceCube is a 1 km$^3$ neutrino observatory being built to study neutrino production in active galactic nuclei, gamma-ray bursts, supernova remnants, and a host of other astrophysical sources. High-energy neutrinos may signal the sources of ultra-high energy cosmic rays. IceCube will also study many particle-physics topics: searches for WIMP annihilation in the Earth or the Sun, and for signatures of supersymmetry in neutrino interactions, studies of neutrino properties, including searches for extra dimensions, and searches for exotica such as magnetic monopoles or Q-balls. IceCube will also study the cosmic-ray composition. In January, 2005, 60 digital optical modules (DOMs) were deployed in the South Polar ice at depths ranging from 1450 to 2450 meters, and 8 ice-tanks, each containing 2 DOMs were deployed as part of a surface air-shower array. All 76 DOMs are collecting high-quality data. After discussing the IceCube physics program and hardware, I will present some initial results with the first DOMs.

  3. Ice chemistry in starless molecular cores

    E-Print Network [OSTI]

    Kalvans, Juris

    2015-01-01T23:59:59.000Z

    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...

  4. Tri-Met's Experience With Automatic Passenger Counter and Automatic Vehicle Location Systems

    E-Print Network [OSTI]

    Bertini, Robert L.

    on an earlier draft. #12;Introduction The Tri-County Metropolitan Transportation District of Oregon (TriTri-Met's Experience With Automatic Passenger Counter and Automatic Vehicle Location Systems James State University Portland, OR 97207 This report is benefited from interviews of Tri-Met staff involved

  5. Modeling of Antarctic sea ice in a general circulation model

    SciTech Connect (OSTI)

    Wu, Xingren; Budd, W.F. [Antarctic Cooperative Research Centre, Tasmania (Australia)] [Antarctic Cooperative Research Centre, Tasmania (Australia); Simmonds, I. [School of Earth Sciences, Victoria (Australia)] [School of Earth Sciences, Victoria (Australia)

    1997-04-01T23:59:59.000Z

    A dynamic-thermodynamic sea ice model is developed and coupled with the Melbourne University general circulation model to simulate the seasonal cycle of the Antarctic sea ice distributions The model is efficient, rapid to compute, and useful for a range of climate studies. The thermodynamic part of the sea ice model is similar to that developed by Parkinson and Washington, the dynamics contain a simplified ice rheology that resists compression. The thermodynamics is based on energy conservation at the top surface of the ice/snow, the ice/water interface, and the open water area to determine the ice formation, accretion, and ablation. A lead parameterization is introduced with an effective partitioning scheme for freezing between and under the ice floes. The dynamic calculation determines the motion of ice, which is forced with the atmospheric wind, taking account of ice resistance and rafting. The simulated sea ice distribution compares reasonably well with observations. The seasonal cycle of ice extent is well simulated in phase as well as in magnitude. Simulated sea ice thickness and concentration are also in good agreement with observations over most regions and serve to indicate the importance of advection and ocean drift in the determination of the sea ice distribution. 64 refs., 15 figs., 2 tabs.

  6. Quantification of summertime water ice deposition on the Martian north polar ice cap

    E-Print Network [OSTI]

    Brown, Adrian J; Becerra, Patricio; Byrne, Shane

    2015-01-01T23:59:59.000Z

    We use observations from the Compact Reconnaissance Imaging Spectrometer for Mars (CRISM) of the north polar cap during late summer for two Martian years, to monitor the complete summer cycle of albedo and water ice grain size in order to place quantitative limits of the amount of water ice deposited in late summer. We establish here for the first time the complete spring to summer cycle of water ice grain sizes on the north polar cap. The apparent grain sizes grow until Ls=132, when they appear to shrink again, until they are obscured at the end of summer by the north polar hood. Under the assumption that the shrinking of grain sizes is due to the deposition of find grained ice, we quantify the amount of water ice deposited per Martian boreal summer, and estimate the amount of water ice that must be transported equatorward. Interestingly, we find that the relative amount of water ice deposited in the north cap during boreal summer (0.7-7 microns) is roughly equivalent to the average amount of water ice depos...

  7. Home Atmosphere Sea Ice Ocean Land Greenland Biology Greenland Ice Sheet Mass Balance

    E-Print Network [OSTI]

    Box, Jason E.

    , thinning and breakup of Jakobshavn Glacier's (SW Greenland) floating ice tongue and acceleration-to-year variability in GrIS mass turnover, e.g. sudden glacier accelerations (Rignot and Kanagartnam 2006). Since or 2005. Physical response mechanisms, such as hydraulic acceleration of the ice sheet from continued

  8. Ice nucleation and overseeding of ice in volcanic clouds A. J. Durant,1,2

    E-Print Network [OSTI]

    Rose, William I.

    that such ``overseeded'' volcanic clouds will exhibit enhanced ice crystal concentrations and smaller average ice crystal nucleation in volcanic plumes and clouds affects dynamics [Glaze et al., 1997; Herzog et al., 1998; Mastin- porting water to the stratosphere [Glaze et al., 1997] and these fluxes depend in part on the microphysics

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

    E-Print Network [OSTI]

    Papalambros, Panos

    derived from the diversity of disciplines that contribute to design, including engineering, economics with the usual engineering requirements. This article describes the basic ideas in constructing the designICED'09/148 INTERNATIONAL CONFERENCE ON ENGINEERING DESIGN, ICED'09 24 - 27 AUGUST 2009, STANFORD

  10. 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

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

    E-Print Network [OSTI]

    Andrea Ferrantelli; Klaus Viljanen

    2015-06-30T23:59:59.000Z

    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.

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

    E-Print Network [OSTI]

    Ferrantelli, Andrea

    2015-01-01T23:59:59.000Z

    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.

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

    SciTech Connect (OSTI)

    Barry, Roger (NSIDC) [NSIDC

    2007-12-19T23:59:59.000Z

    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.

  14. A Dynamic Visualization Environment For The Design And Evaluation Of Automatic Vehicle Control Systems

    E-Print Network [OSTI]

    Xu, Z.

    1995-01-01T23:59:59.000Z

    of Automatic Vehicle Control Systems Application inand Evaluation of Automatic Vehicle Control Systems “, PATHand Evaluation of Automatic Vehicle Control Systems bY z. xu

  15. Automatically processed alpha-track radon monitor

    DOE Patents [OSTI]

    Langner, G.H. Jr.

    1993-01-12T23:59:59.000Z

    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.

  16. 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)

    2012-06-15T23:59:59.000Z

    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.

  17. A distributed application server for automatic differentiation.

    SciTech Connect (OSTI)

    Norris, B.; Hovland, P. D.

    2000-11-30T23:59:59.000Z

    The ADIC Application Server brings the accuracy and efficiency of automatic differentiation to the World Wide Web. Users of the ADIC Application Server can upload source code written in ANSI-C, manage remote files, differentiate selected functions, and download code augmented with derivative computations. Using a simple driver and linking to the appropriate libraries, the user can compile and run the differentiated code locally. We discuss the unique requirements for an automatic differentiation application server and describe the implementation of the ADIC Application Server.

  18. Development of an automatic marine corer

    E-Print Network [OSTI]

    Herman, Richard Joseph

    1972-01-01T23:59:59.000Z

    of the Texas A&M Automatic Marine Corer was continued in June, 1971. The ob]ectives of. this development phase of the corer were (a) to evaluate components within the unit with special consideration given to strength, longevity and ease of production.... The present work will be referred to as Phase III. The ob)ectives of Phase III were the further development of the Texas A&M Automatic Marine Corer. In particular, these ob]ectives were (a) to evaluate components within the unit with special con...

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

    SciTech Connect (OSTI)

    Bezacier, Lucile; Hanfland, Michael [European Synchrotron Radiation Facility, 6 rue Jules Horowitz, 38000 Grenoble (France); Journaux, Baptiste; Perrillat, Jean-Philippe; Cardon, Hervé; Daniel, Isabelle [Laboratoire de Géologie de Lyon, UMR 5276 CNRS, Ecole Normale Supérieure de Lyon – Université Claude Bernard Lyon 1, 2 rue Raphael Dubois, 69622 Villeurbanne Cedex (France)

    2014-09-14T23:59:59.000Z

    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.

  20. Maneuverability of ships in ice: numerical simulation and comparison with field measurements

    E-Print Network [OSTI]

    Nørvåg, Kjetil

    Maneuverability of ships in ice: numerical simulation and comparison with field measurements Biao Su Department of Marine Technology, NTNU May 28, 2013 #12;Motivation Local ice load Global ice load Ship's performance · Ice-hull interaction · Local ice load · Global ice load · Ship's performance #12

  1. Development of the Great Lakes Ice-circulation Model (GLIM): Application to Lake Erie in 20032004

    E-Print Network [OSTI]

    Development of the Great Lakes Ice-circulation Model (GLIM): Application to Lake Erie in 2003: Received 4 May 2009 Accepted 30 November 2009 Communicated by Dr. Ram Yerubandi Index words: Coupled Ice-Ocean Model Ice modeling Lake ice cover Ice thickness Ice speed Lake surface temperature Great Lakes Lake Erie

  2. Numerical simulation of ice-induced loads on ships and comparison with field measurements

    E-Print Network [OSTI]

    Nørvåg, Kjetil

    Numerical simulation of ice-induced loads on ships and comparison with field measurements Biao Su Department of Marine Technology, NTNU May 28, 2013 #12;Motivation Local ice load Global ice load Ship's performance · Ice-hull interaction · Local ice load · Global ice load · Ship's performance #12;Outline

  3. Postdoctoral position Antarctic ice sheet modelling Free University of Brussels (VUB)

    E-Print Network [OSTI]

    Huybrechts, Philippe

    systems and ice caps, and in ice sheets in both polar regions (Greenland and Antarctica). The project as improved treatments for basal processes (basal sliding below ice sheet, basal melting below ice shelvesPostdoctoral position ­ Antarctic ice sheet modelling Free University of Brussels (VUB) The Ice

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

    E-Print Network [OSTI]

    Beem, Lucas H.; Jezek, Ken C.; Van Der Veen, C. J.

    2010-08-05T23:59:59.000Z

    Basal water lubricates and enables the fast flow of the West Antarctic ice streams which exist under low gravitational driving stress. Identification of sources and rates of basal meltwater production can provide insight into the dynamics of ice...

  5. Study of ice cloud properties using infrared spectral data

    E-Print Network [OSTI]

    Garrett, Kevin James

    2009-05-15T23:59:59.000Z

    The research presented in this thesis involves the study of ice cloud microphysical and optical properties using both hyperspectral and narrowband infrared spectral data. First, ice cloud models are developed for the Infrared Atmospheric Sounding...

  6. arctic ocean ice: Topics by E-print Network

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

    AD of transient model simulations and a new type of sen- sitivity experiments with artificial sea ice growth Born, Andreas 320 The Thinning of Arctic Sea Ice, 19882003: Have...

  7. Study of ice cloud properties using infrared spectral data 

    E-Print Network [OSTI]

    Garrett, Kevin James

    2009-05-15T23:59:59.000Z

    The research presented in this thesis involves the study of ice cloud microphysical and optical properties using both hyperspectral and narrowband infrared spectral data. First, ice cloud models are developed for the Infrared Atmospheric Sounding...

  8. aircraft icing training: Topics by E-print Network

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

    Completed all Enhanced Hot Water Drill staff from UW, IceCube collaborators, and Raytheon. Conducted a Quarterly Status Meeting at UW-loaded schedule for on-ice...

  9. andrill mcmurdo ice: Topics by E-print Network

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

    Completed all Enhanced Hot Water Drill staff from UW, IceCube collaborators, and Raytheon. Conducted a Quarterly Status Meeting at UW-loaded schedule for on-ice...

  10. aterrizamiento del ice: Topics by E-print Network

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

    Completed all Enhanced Hot Water Drill staff from UW, IceCube collaborators, and Raytheon. Conducted a Quarterly Status Meeting at UW-loaded schedule for on-ice...

  11. aircraft icing hazards: Topics by E-print Network

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

    Completed all Enhanced Hot Water Drill staff from UW, IceCube collaborators, and Raytheon. Conducted a Quarterly Status Meeting at UW-loaded schedule for on-ice...

  12. aircraft icing nowcasting: Topics by E-print Network

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

    Completed all Enhanced Hot Water Drill staff from UW, IceCube collaborators, and Raytheon. Conducted a Quarterly Status Meeting at UW-loaded schedule for on-ice...

  13. ancient 19-m ice: Topics by E-print Network

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

    Completed all Enhanced Hot Water Drill staff from UW, IceCube collaborators, and Raytheon. Conducted a Quarterly Status Meeting at UW-loaded schedule for on-ice...

  14. IceCube Project Monthly Report -November 2009 Accomplishments

    E-Print Network [OSTI]

    Saffman, Mark

    -speaking researchers. · IceCube participated with Raytheon Polar Services Company in an extremely successful emergency principally due to lower labor and on-ice support costs for Raytheon Polar Services Corporation and the Air

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

    E-Print Network [OSTI]

    Froyd, Karl D.

    2013-01-01T23:59:59.000Z

    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 ...

  16. Learn to Skate at UAF Patty Ice Arena

    E-Print Network [OSTI]

    Wagner, Diane

    Learn to Skate at UAF Patty Ice Arena Tots(age 3-6)& Beginners/Pre-Alpha(age 6-up) 4 Sessions for non-members; $20/day Alpha-Freestyle 3:30-5:00pm One year membership to Ice Skating Institute - $15BreakSkatingCamp Skating for Hockey 3:30-5:00pm March 12-15 3:30-3:45 - O -ice:Warm up 4:00-4:45 - On Ice Skills 15 min

  17. Covered Product Category: Water-Cooled Ice Machines

    Broader source: Energy.gov [DOE]

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

  18. An update on land-ice modeling in the CESM

    SciTech Connect (OSTI)

    Lipscomb, William H [Los Alamos National Laboratory

    2011-01-18T23:59:59.000Z

    Mass loss from land ice, including the Greenland and Antarctic ice sheets as well as smaller glacier and ice caps, is making a large and growing contribution to global sea-level rise. Land ice is only beginning to be incorporated in climate models. The goal of the Land Ice Working Group (LIWG) is to develop improved land-ice models and incorporate them in CESM, in order to provide useful, physically-based sea-level predictions. LJWG efforts to date have led to the inclusion of a dynamic ice-sheet model (the Glimmer Community Ice Sheet Model, or Glimmer-CISM) in the Community Earth System Model (CESM), which was released in June 2010. CESM also includes a new surface-mass-balance scheme for ice sheets in the Community Land Model. Initial modeling efforts are focused on the Greenland ice sheet. Preliminary results are promising. In particular, the simulated surface mass balance for Greenland is in good agreement with observations and regional model results. The current model, however, has significant limitations: The land-ice coupling is one-way; we are using a serial version of Glimmer-CISM with the shallow-ice approximation; and there is no ice-ocean coupling. During the next year we plan to implement two-way coupling (including ice-ocean coupling with a dynamic Antarctic ice sheet) with a parallel , higher-order version of Glimmer-CISM. We will also add parameterizations of small glaciers and ice caps. With these model improvements, CESM will be able to simulate all the major contributors to 21st century global sea-level rise. Results of the first round of simulations should be available in time to be included in the Fifth Assessment Report (ARS) of the Intergovernmental Panel on Climate Change.

  19. Automatic Performance Collection (AutoPerf) | Argonne Leadership...

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

    Automatic Performance Collection (AutoPerf) A beta version of a tool for the automatic collection of hardware performance counter and MPI information has been installed on ALCF BG...

  20. Automatic vehicle following for emergency lane change maneuvers

    E-Print Network [OSTI]

    Yoon, Seok Min

    1998-01-01T23:59:59.000Z

    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...

  1. 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

  2. Automatic Multimedia Knowledge Discovery, Summarization and Evaluation Ana B. Benitez *

    E-Print Network [OSTI]

    Fan, Jianping

    Automatic Multimedia Knowledge Discovery, Summarization and Evaluation Ana B. Benitez * Department for automatically discovering, summarizing and evaluating multimedia knowledge from annotated images in the form for applications to intelligently, efficiently and coherently deal with multimedia. The proposed methods include

  3. automatic generation control: Topics by E-print Network

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

    W. F. Long 1994-01-14 42 An Automatic Load Sharing Approach for a DFIG Based Wind Generator in a Microgrid Engineering Websites Summary: An Automatic Load Sharing Approach...

  4. Automatic vehicle following for emergency lane change maneuvers 

    E-Print Network [OSTI]

    Yoon, Seok Min

    1998-01-01T23:59:59.000Z

    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...

  5. automatic simplex optimization: Topics by E-print Network

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

    automatic simplex optimization First Page Previous Page 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Next Page Last Page Topic Index 1 Automatic...

  6. Electron decay at IceCube

    E-Print Network [OSTI]

    Lynch, Morgan H

    2015-01-01T23:59:59.000Z

    In this paper we apply the formalism of Accelerated Quantum Dynamics (AQD) to the radiative stopping of highly relativistic electrons in ice. We compute the lifetime of electrons to decay into muons as well as the spectrum of the emitted muons. The energy of the emitted muon depends on the deceleration of the electron and this correlation can be used to tag the event and confirm the prediction. The results predict the acceleration-induced decay of electrons at IceCube energies. This experimental setting has the potential to establish the existence of the Unruh effect as well investigate the role of high acceleration in particle physics.

  7. The effect of ice crystal surface roughness on the retrieval of ice cloud microphysical and optical properties

    E-Print Network [OSTI]

    Xie, Yu

    2007-09-17T23:59:59.000Z

    The effect of the surface roughness of ice crystals is not routinely accounted for in current cloud retrieval algorithms that are based on pre-computed lookup libraries. In this study, we investigate the effect of ice crystal surface roughness...

  8. Observations: Changes in Snow, Ice and Frozen Ground

    E-Print Network [OSTI]

    Jellinek, Mark

    ................................................ 352 4.4.4 Pack Ice Motion................................................... 355 4.5 Changes4 Observations: Changes in Snow, Ice and Frozen Ground Coordinating Lead Authors: Peter Lemke. Kaser, P. Mote, R.H. Thomas and T. Zhang, 2007: Observations: Changes in Snow, Ice and Frozen Ground. In

  9. Contemporary Lake Superior Ice Cover Climatology Raymond A. Assel

    E-Print Network [OSTI]

    Contemporary Lake Superior Ice Cover Climatology Raymond A. Assel NOAA Great Lakes Environmental Introduction A brief discussion of Lake Superior ice cover climatology (Phillips, 1978) was included) almost three decades ago. Much additional information (and analysis) of Great Lakes ice cover has been

  10. The Integrated Computer Engineering Design (ICED) Curriculum Augustus K. Uht

    E-Print Network [OSTI]

    Uht, Augustus K.

    The Integrated Computer Engineering Design (ICED) Curriculum Augustus K. Uht Department computer engineering curriculum, ICED, is being introduced at the University of Rhode Island. The main. This paper gives the rationale of ICED in depth, and describes the core courses, their activities and use

  11. Ice-Floe Simulation Viewer Tool Justin Adams

    E-Print Network [OSTI]

    Peters, Dennis

    Ice-Floe Simulation Viewer Tool Justin Adams Computer Engineering Memorial University St. John's, Newfoundland dpeters@mun.ca Abstract--We are developing software to simulate the be- haviour of sea ice the ability to set up the initial conditions, run the simulation, and display the simulated ice- floe data

  12. Bacteria beneath the West Antarctic Ice Sheet Brian Lanoil,1

    E-Print Network [OSTI]

    Priscu, John C.

    Bacteria beneath the West Antarctic Ice Sheet Brian Lanoil,1 * Mark Skidmore,1 John C. Priscu,2, particularly those that lie beneath polar ice sheets, are beginning to be recog- nized as an important part Vostok, Antarctica, no sub-ice sheet environments have been shown to support microbial ecosystems. Here

  13. Ice Simulation Using GPGPU Shadi Alawneh and Dennis Peters

    E-Print Network [OSTI]

    Peters, Dennis

    Ice 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 on several different ice fields for several iterations to compare the performance. Our results show speed up

  14. A Computer Tutorial for Great Lakes Ice Cover Climatology

    E-Print Network [OSTI]

    A Computer Tutorial for Great Lakes Ice Cover Climatology R.A. ASSELL U.S. Department of Commerce tutorial was developed to provide an overview of the annual ~ r e a fLakes ice cycle. The tutorial includes an animation to aid in visualizing the normal seasonal progression and the spatial patterns of ice cover

  15. Implementing an ICE: A methodology for the design, development

    E-Print Network [OSTI]

    Deussen, Oliver

    Implementing an ICE: A methodology for the design, development and installation of Interactive for the design, development and implementation of ICEs (Interactive Collaborative Environments) in real world with the Edinburgh Napier ICE, a multi-user, multi-surface, multi-touch blended interaction digitally augmented space

  16. Modeling Lake Erie ice dynamics: Process studies , Haoguo Hu2

    E-Print Network [OSTI]

    Modeling Lake Erie ice dynamics: Process studies Jia Wang1 , Haoguo Hu2 , and Xuezhi Bai2 1 NOAA of Michigan 4840 S. State Road, Ann Arbor, MI 48108 Abstract. A Great Lakes Ice-circulation Model (GLIM derived from meteorological measurements. After the seasonal cycles of ice concentration, thickness

  17. ICE Algorithm for the Shocktube Problem Oren E. Livne

    E-Print Network [OSTI]

    Utah, University of

    1 ICE Algorithm for the Shocktube Problem Oren E. Livne UUSCI-2006-007 Scientific Computing the main ICE advection algorithm for scalar advection problems (advection and Burg- ers step in this original Kashiwa ICE algorithm [Kas00], and its relation of both the Davis scheme [Dav87

  18. A lattice model to simulate ice-structure interaction

    E-Print Network [OSTI]

    Boyer, Edmond

    A lattice model to simulate ice-structure interaction O. Dorival, A. V. Metrikine, A. Simone of Technology P. O. Box 5048, 2600 GA Delft, Netherlands Abstract The interaction between ice sheets, due to the complexity of ice material the use of small-scale experiments is problematic if one aims

  19. Operation and Control of Full Ice-storage System

    E-Print Network [OSTI]

    Liu, Q.; Liu, Y.

    2006-01-01T23:59:59.000Z

    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...

  20. Global Ice and Land Climate Studies Using Scatterometer Image Data

    E-Print Network [OSTI]

    Long, David G.

    1 Global Ice and Land Climate Studies Using Scatterometer Image Data David G. Long Brigham Young CA 91109 ben@pacific.jpl.nasa.gov Sasan.Saatchi@jpl.nasa.gov Cheryl Bertoia U. S. National Ice Center: Long, D. G., M. R. Drinkwater, B. Holt, S. Saatchi, and C. Bertoia, Global ice and land climate studies

  1. Is the Missing Ultra-Red Material Colorless Ice?

    E-Print Network [OSTI]

    W. M. Grundy

    2008-11-14T23:59:59.000Z

    The extremely red colors of some transneptunian objects and Centaurs are not seen among the Jupiter family comets which supposedly derive from them. Could this mismatch result from sublimation loss of colorless ice? Radiative transfer models show that mixtures of volatile ice and nonvolatile organics could be extremely red, but become progressively darker and less red as the ice sublimates away.

  2. STATE OF CALIFORNIA ICE STORAGE AIR CONDITIONING (ISAC) UNITS

    E-Print Network [OSTI]

    cooling with the compressor). Yes No #12;STATE OF CALIFORNIA ICE STORAGE AIR CONDITIONING (ISAC) UNITS CEC/09) CALIFORNIA ENERGY COMMISSION INSTALLATION CERTIFICATE CF-6R-MECH-08 Ice Storage Air Conditioning (ISAC) Units being full of ice. Verify that the system is operates properly in the Idle mode (i.e., the compressor

  3. 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 three major sources, the Greenland ice sheet, Antarctica, and other eustatic components. Each has its own predictable spatial signal, and particular attention was paid to the Greenland ice sheet, given

  4. The Ice Rink Problem 1 Bernard M.E. Moret,

    E-Print Network [OSTI]

    Moret, Bernard

    The Ice Rink Problem 1 Bernard M.E. Moret, Michael Collins, Jared Saia, and Ling Yu Department the sensor footprint. A similar task with a simpler geometry consists of cleaning an ice rink. We prove that the method used in ice rinks (the ``Zamboni algorithm'') is optimal and use it to develop heuristics

  5. Integrated navigation for AUV operations under ice shelves

    E-Print Network [OSTI]

    Griffiths, Gwyn

    Integrated navigation for AUV operations under ice shelves Gwyn Griffiths and Steve Mc One-slide summary of the Autosub AUV J Why explore beneath ice shelves? J Technology challenges: the Halliburton `Geosub' #12;Why explore beneath ice shelves? Gl oba l Wa r mi ng Li nke d t o Me l t i ng I c e c

  6. ICE SHEET SOURCES OF SEA LEVEL RISE AND FRESHWATER DISCHARGE

    E-Print Network [OSTI]

    Carlson, Anders

    ICE SHEET SOURCES OF SEA LEVEL RISE AND FRESHWATER DISCHARGE DURING THE LAST DEGLACIATION Anders E the sources of sea level rise and freshwater dis- charge to the global oceans associated with retreat of ice­10 m sea level rise at 19.0­19.5 ka, sourced largely from Northern Hemisphere ice sheet retreat

  7. automatic vehicle classification: Topics by E-print Network

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

    Keywords: Document Classification, Document Structure, Technical Document, Support Vector Machine, Vector in the electronic format, needs an automatic...

  8. 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

  9. Automatically Restructuring Programs for the Web

    E-Print Network [OSTI]

    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

  10. Automatically Restructuring Programs for the Web

    E-Print Network [OSTI]

    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

  11. Data system for automatic flux mapping applications

    SciTech Connect (OSTI)

    Couch, R.D.; Kasinoff, A.M.; Neuner, J.A.; Oates, R.M.

    1980-12-16T23:59:59.000Z

    In an automatic flux mapping system utilizing a microprocessor for control and data information processing, signals from the incore detectors providing the flux mapping operation are converted to a frequency link and are made available to the microprocessor via a programmable timer thus minimizing the participation of the microprocessor so that the microprocessor can be made more available to satisfy other tasks.

  12. Architecture of an Automatic Tuned Linear Algebra

    E-Print Network [OSTI]

    Giménez, Domingo

    /01 and PI-34/00788/F5/01. #12;Hierarchical Architecture of a Self-Optimised Lineal Algebra LibraryArchitecture of an Automatic Tuned Linear Algebra Library* Javier Cuenca Domingo Giménez José .... SPt c,z Architecture of a Self-Optimised Linear Algebra Routine (SOLAR) Installation_information n1

  13. 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

  14. Automatic building modeling from terrestrial laser scanning

    E-Print Network [OSTI]

    Pu, Shi

    Automatic building modeling from terrestrial laser scanning Shi Pu International Institute for Geo hard to recover 3D building structures from 2D image. Recent studies ([2] [6]) show that laser scanning imagery, airborne and terrestrial laser scanning give explicit 3D information, which enables the rapid

  15. Automatic Dependent SurveillanceBroadcast in

    E-Print Network [OSTI]

    significant restructuring of the cur- rent Air Traffic Control (ATC) system. The Federal Aviation Administration (FAA) plans include the Next Generation Air Transportation System (NextGen), a Joint Planning Aviation Administration is adopting Automatic Dependent Surveillance­Broadcast (ADS­B) to provide

  16. 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

  17. Automatic Generation and Maintenance of Correct Spreadsheets

    E-Print Network [OSTI]

    Erwig, Martin

    of "spreadsheet maintenance safety": Up- date operations that are generated from a type-correct tem- plateAutomatic Generation and Maintenance of Correct Spreadsheets Martin Erwig School of EECS Oregon descriptors: D.2.2 [Software Engineering]: Design Tools and Techniques; D.2.7 [Soft- ware Engineering

  18. Automatic Video Shot Detection from MPEG Stream

    E-Print Network [OSTI]

    Fan, Jianping

    Automatic Video Shot Detection from MPEG Stream Jianping Fan Department of Computer Science;Why we need video shots? a. Text Retrieval: Keyword Extraction Indexing Document Storage Reverse File Indexing #12;Why we need video shots? b. Database Query: Entity Extraction sid name login age gpa 53666

  19. Generalized Automatic and Augmented Manual Flight Control

    E-Print Network [OSTI]

    Berlin,Technische Universität

    Flight Guidance and Control Tony.Lambregts@FAA.gov Tel 425-917-6581 Berlin Technical University & Incidents · China Airlines B747 spiral dive after engine failure · China Airlines A300 crash at Nagoya · A/P roll control saturation, engine out (China Airlines B747) · unexpected high altitude automatic

  20. Historical and future black carbon deposition on the three ice caps: Ice core measurements and model simulations from 1850 to 2100

    E-Print Network [OSTI]

    Historical and future black carbon deposition on the three ice caps: Ice core measurements black carbon deposition on the three ice caps: Ice core measurements and model simulations from 1850 tends to enhance snow and ice melting due to the absorption caused by the increased BC deposition

  1. STATE OF CALIFORNIA AUTOMATIC DAYLIGHTING CONTROL ACCEPTANCE DOCUMENT

    E-Print Network [OSTI]

    STATE OF CALIFORNIA AUTOMATIC DAYLIGHTING CONTROL ACCEPTANCE DOCUMENT CEC-LTG-3A (Revised 07/10) CALIFORNIA ENERGY COMMISSION CERTIFICATE OF ACCEPTANCE LTG-3A Automatic Daylighting Control Acceptance fraction of rated light output. #12;STATE OF CALIFORNIA AUTOMATIC DAYLIGHTING CONTROL ACCEPTANCE DOCUMENT

  2. Automatic learning for the classification of primary frequency control behaviour

    E-Print Network [OSTI]

    Wehenkel, Louis

    types of expected or unexpected behaviours. The proposed approach is based on automatic learning whichAutomatic learning for the classification of primary frequency control behaviour Bertrand. Abstract-- In this paper we propose a methodology based on supervised automatic learning in order

  3. 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

  4. Automatic TLI recognition system, user`s guide

    SciTech Connect (OSTI)

    Lassahn, G.D.

    1997-02-01T23:59:59.000Z

    This report describes how to use an automatic target recognition system (version 14). In separate volumes are a general description of the ATR system, Automatic TLI Recognition System, General Description, and a programmer`s manual, Automatic TLI Recognition System, Programmer`s Guide.

  5. Marzia Cescon Department of Automatic Control Lund University

    E-Print Network [OSTI]

    Como, Giacomo

    Transactions on Automatic Control; IEEE Transactions on Control System Technology; IEEE TransactionsMarzia Cescon Department of Automatic Control ­ Lund University Box 118, SE-221 00 Lund, Sweden-Present Education Ph.D. in Automatic Control, Lund University, advisor prof. Rolf Johansson. November 2013

  6. Automatic Model Complexity Control Using Marginalized Discriminative Growth Functions

    E-Print Network [OSTI]

    Hain, Thomas

    Automatic model complexity control . Most LVCSR systems are trained on large amounts of data. . ManyAutomatic Model Complexity Control Using Marginalized Discriminative Growth Functions X. Liu & M. J. J. F. Gales: Automatic Model Complexity Control Using Marginalized Discriminative Growth Functions

  7. Dynamics and energetics of the cloudy boundary layer in simulations of off-ice flow in the marginal ice zone

    E-Print Network [OSTI]

    Harrington, Jerry Y.

    kinetic energy even in the present case where very strong surface heat fluxes occur. Ice-phase. Inclusion of the ice phase significantly affected the radiative budget as compared to purely liquid clouds, illustrating the importance of ice-phase­radiative couplings for accurate simulations of arctic clouds

  8. Where might we find evidence of a Last Interglacial West Antarctic Ice Sheet collapse in Antarctic ice core records?

    E-Print Network [OSTI]

    Siddall, Mark

    increased melting from valley glaciers and small ice caps (estimated ~0.6±0.1 m, Radi and Hock, 2010), oceanWhere might we find evidence of a Last Interglacial West Antarctic Ice Sheet collapse in Antarctic ice core records? S.L. Bradley a, , M. Siddall a , G.A. Milne b , V. Masson-Delmotte c , E. Wolff d

  9. 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, C.J.

    2005-01-01T23:59:59.000Z

    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) velocities collected...

  10. 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.

    2001-10-01T23:59:59.000Z

    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...

  11. Ice surfaces: macroscopic effects of microscopic structure

    E-Print Network [OSTI]

    Wettlaufer, John S.

    in the large tropical and subtropical belt, and between -20 and -40 C in the small polar caps. Water becomes ice at just around the middle of that temperature range. Only a small shift in temperature determines microphysics and chemistry have large-scale consequences. The difficulties associated with observing processes

  12. Ocean Atmosphere Sea Ice Soil User's Guide

    E-Print Network [OSTI]

    OASIS3 Ocean Atmosphere Sea Ice Soil User's Guide oasis3 prism 2­2, June 2004 Sophie Valcke 1 to realize a coupled simulation with OASIS3. The aim of OASIS3 is to provide a flexible and user friendly. OASIS3 synchronizes the exchanges of coupling fields between the models being coupled, and performs 2D

  13. Ocean Atmosphere Sea Ice Soil User's Guide

    E-Print Network [OSTI]

    OASIS3 Ocean Atmosphere Sea Ice Soil User's Guide oasis3 prism 2­3, August 2004 Sophie Valcke 1 to realize a coupled simulation with OASIS3. The aim of OASIS3 is to provide a flexible and user friendly. OASIS3 synchronizes the exchanges of coupling fields between the models being coupled, and performs 2D

  14. Ocean Atmosphere Sea Ice Soil User's Guide

    E-Print Network [OSTI]

    OASIS 2.0 Ocean Atmosphere Sea Ice Soil User's Guide and Reference Manual November 1995 Laurent for the straightforward use of OASIS 2.0. As far as we know, it is the best way to use it! The aim of OASIS is to provide been particularly emphasized in the OASIS design. The use of OASIS does not change the way the models

  15. IceCube Project Monthly Report Accomplishments

    E-Print Network [OSTI]

    Saffman, Mark

    .2% complete, as measured using earned value techniques. The contingency % of the remaining work is 28.3%. #12 with critical dates and activities managed by both Raytheon Polar Services Company and the UW is set Division Management, and FY08 Actual costs for On-Ice Support that were less than planned. 5/31/08 Change

  16. IceCube Project Monthly Report Accomplishments

    E-Print Network [OSTI]

    Saffman, Mark

    versus the planned performance of 55.8% complete as measured using earned value techniques. The earned safety training for drilling and installation managers, safety leads and a few other on- ice personnel Project Cost $274.3 Value of Foreign Contributions $32.2 NSF Funding $242.1 Contingency as % of Remaining

  17. Largest Ice-Bank Promotes Load Management

    E-Print Network [OSTI]

    Brarmann, G. L.

    1983-01-01T23:59:59.000Z

    of both the 30-year old, 265,000 square foot facility and the new 156,000 square foot Fred L. Hartley Research Center. The energy and demand savings resulting from the installation of the ice-bank system are significant. Large commercial and industrial...

  18. Toward Extraplanetary Under-Ice Exploration

    E-Print Network [OSTI]

    Eustice, Ryan

    .jhu@gmail.com Ryan Eustice Department of Naval Architecture and Marine Engineering University of Michigan Ann Arbor· · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · Toward Extraplanetary Under-Ice@whoi.edu, rsohn@whoi.edu, ssingh@whoi.edu Taichi Sato Ocean Research Institute University of Tokyo Nakano, Tokyo

  19. 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)

    None

    1980-09-01T23:59:59.000Z

    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)

  20. Modeling the Fracture of Ice Sheets on Parallel Computers

    SciTech Connect (OSTI)

    Waisman, Haim [Columbia University] [Columbia University; Tuminaro, Ray [Sandia National Labs] [Sandia National Labs

    2013-10-10T23:59:59.000Z

    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.

  1. West antarctic ice sheet collapse: Chimera or clear danger

    SciTech Connect (OSTI)

    Alley, R.B. (Pennsylvania State Univ., University Park, PA (United States)); MacAyeal, D.R. (Univ. of Chicago, IL (United States))

    1993-01-01T23:59:59.000Z

    The specter of a west antarctic collapse has been with us for 25 years. Recently, certain official assessments concerned primarily with the future response to projected global warming have concluded that Antarctica will not cause much sea-level rise within the planning horizon of a century or so. At the same time startling new results on ice sheet (in)stability have been emerging, pointing to less stability then previously believed. Some recent results are reviewed briefly: Heinrich layers in the North Atlantic show basally lubricated surges of the Laurentide ice sheet; the west antarctic ice sheet collapsed recently; the modern west antarctic ice sheet is changing rapidly locally; the bed of ice stream B is exceptionally well lubricated by water and water-saturated soft sediments; the modern ice sheet is thinning slowly on average; a model west antarctic ice sheet undergoes rapid collapses long after forcing and probably related to penetration of warmth to the bed. 23 refs.

  2. 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

    2011-01-01T23:59:59.000Z

    Jakobshavn I. Rinks Observed Historic Flux (km 3 ice/year)I. Rinks * Outlets fed by the Northeast Greenland Ice StreamRinks, measured in 2000). Figure 3.1: Steady-state (A) topography (m) and (C) ice

  3. Global Simulations of Ice nucleation and Ice Supersaturation with an Improved Cloud Scheme in the Community Atmosphere Model

    SciTech Connect (OSTI)

    Gettelman, A.; Liu, Xiaohong; Ghan, Steven J.; Morrison, H.; Park, Sungsu; Conley, Andrew; Klein, Stephen A.; Boyle, James; Mitchell, David; Li, J-L F.

    2010-09-28T23:59:59.000Z

    A process-based treatment of ice supersaturation and ice-nucleation is implemented in the National Center for Atmospheric Research (NCAR) Community Atmosphere Model (CAM). The new scheme is designed to allow (1) supersaturation with respect to ice, (2) ice nucleation by aerosol particles and (3) ice cloud cover consistent with ice microphysics. The scheme is implemented with a 4-class 2 moment microphysics code and is used to evaluate ice cloud nucleation mechanisms and supersaturation in CAM. The new model is able to reproduce field observations of ice mass and mixed phase cloud occurrence better than previous versions of the model. Simulations indicate heterogeneous freezing and contact nucleation on dust are both potentially important over remote areas of the Arctic. Cloud forcing and hence climate is sensitive to different formulations of the ice microphysics. Arctic radiative fluxes are sensitive to the parameterization of ice clouds. These results indicate that ice clouds are potentially an important part of understanding cloud forcing and potential cloud feedbacks, particularly in the Arctic.

  4. Method for automatically scramming a nuclear reactor

    DOE Patents [OSTI]

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

    2005-12-27T23:59:59.000Z

    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.

  5. Automatic transformations in the inference process

    SciTech Connect (OSTI)

    Veroff, R. L.

    1980-07-01T23:59:59.000Z

    A technique for incorporating automatic transformations into processes such as the application of inference rules, subsumption, and demodulation provides a mechanism for improving search strategies for theorem proving problems arising from the field of program verification. The incorporation of automatic transformations into the inference process can alter the search space for a given problem, and is particularly useful for problems having broad rather than deep proofs. The technique can also be used to permit the generation of inferences that might otherwise be blocked and to build some commutativity or associativity into the unification process. Appropriate choice of transformations, and new literal clashing and unification algorithms for applying them, showed significant improvement on several real problems according to several distinct criteria. 22 references, 1 figure.

  6. Variable metric methods for automatic history matching

    E-Print Network [OSTI]

    Armasu, Razvan

    1985-01-01T23:59:59.000Z

    . Automatic history matching codes presently in use employ steepest descent with optimal control, and although they were proven superior to others, their performance is not entirely satisfactory due to the poor rate of convergence as the performance index... rates of convergence when compared to the steepest descent They can be made to start out as steepest descent and end up as a second order algorithm, using functional and gradient information only, In this work several variable metric algorithms...

  7. Molecular Dynamics Simulations of CO2 Formation in Interstellar Ices

    E-Print Network [OSTI]

    Arasa, Carina; van Dishoeck, Ewine F; Kroes, Geert-Jan

    2013-01-01T23:59:59.000Z

    CO2 ice is one of the most abundant components in ice-coated interstellar ices besides H2O and CO, but the most favorable path to CO2 ice is still unclear. Molecular dynamics calculations on the ultraviolet photodissociation of different kinds of CO-H2O ice systems have been performed at 10 K in order to demonstrate that the reaction between CO and an OH molecule resulting from H2O photodissociation through the first excited state is a possible route to form CO2 ice. However, our calculations, which take into account different ice surface models, suggest that there is another product with a higher formation probability ((3.00+-0.07)x10-2), which is the HOCO complex, whereas the formation of CO2 has a probability of only (3.6+-0.7)x10-4. The initial location of the CO is key to obtain reaction and form CO2: the CO needs to be located deep into the ice. The HOCO complex becomes trapped in the cold ice surface in the trans-HOCO minimum because it quickly loses its internal energy to the surrounding ice, preventi...

  8. 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.

  9. Searching for sterile neutrinos in ice

    E-Print Network [OSTI]

    Soebur Razzaque; A. Yu. Smirnov

    2011-07-04T23:59:59.000Z

    Oscillation interpretation of the results from the LSND, MiniBooNE and some other experiments requires existence of sterile neutrino with mass $\\sim 1$ eV and mixing with the active neutrinos $|U_{\\mu 0}|^2 \\sim (0.02 - 0.04)$. It has been realized some time ago that existence of such a neutrino affects significantly the fluxes of atmospheric neutrinos in the TeV range which can be tested by the IceCube Neutrino Observatory. In view of the first IceCube data release we have revisited the oscillations of high energy atmospheric neutrinos in the presence of one sterile neutrino. Properties of the oscillation probabilities are studied in details for various mixing schemes both analytically and numerically. The energy spectra and angular distributions of the $\

  10. Under consideration for publication in J. Fluid Mech. 1 Ocean waves and ice sheets

    E-Print Network [OSTI]

    Craster, Richard

    ; Wadhams & Holt, 1991) to pack ice (Robin, 1963) and even glacial ice tongues (Holdsworth, 1969; Squire etUnder consideration for publication in J. Fluid Mech. 1 Ocean waves and ice sheets By N. J waves incident on ice­covered ocean. The ice cover is idealized as a plate of elastic material for which

  11. Evidence for atmospheric control of sea-ice motion through Nares Strait

    E-Print Network [OSTI]

    Kurapov, Alexander

    Arctic pack ice, a critical element of the global climate system. The general flow of seawater through be sufficient to halt ice drift, despite strong forcing. Pack ice often consolidates in winter behind an ice mobility of pack ice in Fram Strait and the more persistently static conditions in the western CAA. We

  12. Evaluation of Arctic sea ice thickness simulated by Arctic Ocean Model Intercomparison Project models

    E-Print Network [OSTI]

    Zhang, Jinlun

    of fast ice formation and growth. Instead, the modeled fast ice is replaced with pack ice which driftsEvaluation of Arctic sea ice thickness simulated by Arctic Ocean Model Intercomparison Project with estimates of sea ice thickness derived from pan-Arctic satellite freeboard measurements (2004

  13. Classification of Annual Great Lakes Ice Cycles: Winters of 19732002* RAYMOND A. ASSEL

    E-Print Network [OSTI]

    Classification of Annual Great Lakes Ice Cycles: Winters of 1973­2002* RAYMOND A. ASSEL National (Manuscript received 12 July 2004, in final form 13 June 2005) ABSTRACT Annual seasonal average ice cover from 1973 to 2002 and associated dates of first ice, last ice, and ice duration are presented and discussed

  14. MCM LTER METADATA FILE TITLE: Lake ice thickness in the McMurdo Dry Valleys

    E-Print Network [OSTI]

    Priscu, John C.

    MCM LTER METADATA FILE TITLE: Lake ice thickness in the McMurdo Dry Valleys ABSTRACT: Ice thickness was measured from the bottom of the ice cover to the piezometric water level and to the top of the ice cover-2360 achiuchiolo@montana.edu VARIABLES: Location Name, Location Code, Limno Run, Collection Date, z-water, z-ice, z

  15. NOAA Technical Memorandum ERL GLERL-48 LAKE ERIE REGIONAL ICE COVER ANALYSIS: PRELIMINARY RESULTS

    E-Print Network [OSTI]

    NOAA Technical Memorandum ERL GLERL-48 LAKE ERIE REGIONAL ICE COVER ANALYSIS: PRELIMINARY RESULTS R.2 2.3 2.4 2.5 Observation density Average regional ice cover Percentage exceedance from average regional ice cover for discrete ice cover values Contour analysis of percentage ice cover exceedance

  16. Polar Sea Ice Mapping Using SeaWinds Data Hyrum S. Anderson and David G. Long

    E-Print Network [OSTI]

    Long, David G.

    Polar Sea Ice Mapping Using SeaWinds Data Hyrum S. Anderson and David G. Long Brigham Young for mapping polar sea ice extent. In this study, a new al- gorithm for polar sea ice mapping is developed of Bayes detection to produce sea ice extent maps. Statistical models for sea ice and ocean are represented

  17. 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

  18. NAO influence on net sea ice production and exchanges in the Arctic region

    E-Print Network [OSTI]

    Hu, Aixue

    NAO influence on net sea ice production and exchanges in the Arctic region Aixue Hu National Center of the net sea ice production and the sea ice exchanges between the Arctic and its adjacent seas are studied) is the major factor controlling the net sea ice production in the Arctic region since a thinning ice cover

  19. Holocene-Late Pleistocene Climatic Ice Core Records from Qinghai-Tibetan Plateau

    E-Print Network [OSTI]

    Howat, Ian M.

    for affecting large-scale climate. In 1987, three ice cores were recovered to bedrock from the Dunde ice cap. XIE Three ice cores to bedrock from the Dunde ice cap on the north-central Qinghai- Tibetan Plateau of ago. T HE DUNDE ICE CAP (38°06'N, 96°24'E) is located in a desert envi- ronment between the highest

  20. XXII ICTAM, 2529 August 2008, Adelaide, Australia EXPERIMENTAL AND THEORETICAL MODELLING OF ICE SHEETSHELF GROUNDING

    E-Print Network [OSTI]

    Worster, M. Grae

    melting of the polar ice caps due to global warming, a dynamical collapse of the ice sheets has the dynamical stability of shelving ice sheets. INTRODUCTION The Antarctic ice cap contains several tensXXII ICTAM, 25­29 August 2008, Adelaide, Australia EXPERIMENTAL AND THEORETICAL MODELLING OF ICE

  1. Melting of small Arctic ice caps observed from ERS scatterometer time series

    E-Print Network [OSTI]

    Smith, Laurence C.

    Melting of small Arctic ice caps observed from ERS scatterometer time series Laurence C. Smith,1 of melt onset can be observed over small ice caps, as well as the major ice sheets and multi-year sea ice for 14 small Arctic ice caps from 1992­2000. Interannual and regional variability in the timing of melt

  2. Contractor SOW Template - ICE | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE: Alternative FuelsNovember 13, 2014 BuildingEnergyEnergyConsortiumContacts Contacts2012ICE

  3. 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

    2007-08-24T23:59:59.000Z

    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.

  4. On water ice formation in interstellar clouds

    E-Print Network [OSTI]

    Renaud Papoular

    2005-07-06T23:59:59.000Z

    A model is proposed for the formation of water ice mantles on grains in interstellar clouds. This occurs by direct accretion of monomers from the gas, be they formed by gas or surface reactions. The model predicts the existence of a threshold in interstellar light extinction, A(v), which is mainly determined by the adsorption energy of water molecules on the grain material; for hydrocarbon material, chemical simulation places this energy between 0.5 and 2 kcal/mole, which sets the visible exctinction threshold at a few magnitudes, as observed. Once the threshold is crossed, all available water molecules in the gas are quickly adsorbed, forming an ice mantle, because the grain cools down and the adsorption energy on ice is higher than on bare grain. The model also predicts that the thickness of the mantle, and, hence, the optical thickness at 3 mu, grow linearly with A(v), as observed, with a slope which depends upon the total amount of water in the gas. Chemical simulation was also used to determine the adsorption sites and energies of O and OH on hydrocarbons, and study the dynamics of formation of water molecules by surface reactions with gaseous H atoms, as well as their chances of sticking in situ.

  5. Analytical determination of propeller performance degradation due to ice accretion

    E-Print Network [OSTI]

    Miller, Thomas Lloyd

    1984-01-01T23:59:59.000Z

    result of exposing an airfoil in forward motion to supercooled water droplets in a sub-freezing environment. The type of ice which will form may be determined by a variety of factors including freestream velocity, liquid water content of the cloud... as rime ice, occurs at relatively low velocities, low liquid water content values (typically 0. 5 to 1. 0 grams per cubic meter), and temperature well below freezing. Due primarily to the very cold temperatures associated with rime ice formation...

  6. Calibration and Characterization of the IceCube Photomultiplier Tube

    E-Print Network [OSTI]

    Abbasi, R.

    2010-01-01T23:59:59.000Z

    Calibration and Characterization of the IceCubeUniversity of California. Calibration and Characterizationchar- acterization and calibration of these PMTs before

  7. Optimal Control of Harvesting Ice Thermal Storage Systems

    E-Print Network [OSTI]

    Knebel, D. E.

    1988-01-01T23:59:59.000Z

    for optimal control of a harvesting ice storage system. A simplified procedure is used to develop 24 hour load data. Example installations will be shown....

  8. 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.

  9. Artificial Spin Ice - A New Playground to Better Understand Magnetism...

    Office of Science (SC) Website

    Artificial Spin Ice - A New Playground to Better Understand Magnetism Basic Energy Sciences (BES) BES Home About Research Facilities Science Highlights Benefits of BES Funding...

  10. antarctic sea ice: Topics by E-print Network

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

    AD of transient model simulations and a new type of sen- sitivity experiments with artificial sea ice growth Born, Andreas 327 Sedimentation and particle dynamics in the...

  11. arctic sea ice: Topics by E-print Network

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

    AD of transient model simulations and a new type of sen- sitivity experiments with artificial sea ice growth Born, Andreas 388 Sedimentation and particle dynamics in the...

  12. altimeter sea ice: Topics by E-print Network

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

    AD of transient model simulations and a new type of sen- sitivity experiments with artificial sea ice growth Born, Andreas 218 Sedimentation and particle dynamics in the...

  13. artic sea ice: Topics by E-print Network

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

    AD of transient model simulations and a new type of sen- sitivity experiments with artificial sea ice growth Born, Andreas 214 Sedimentation and particle dynamics in the...

  14. arctic ice dynamics: Topics by E-print Network

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

    W. F. Vincent (2008), Seasonal dynamics of bacterial Vincent, Warwick F. 168 Dynamics of artificial spin ice: a continuous honeycomb network MIT - DSpace Summary: We model the...

  15. arctic ice islands: Topics by E-print Network

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

    analogous to the effects of the Arctic region; KEYWORDS: Arctic Ocean, ice rafting, climate change Citation: Darby, D. A., and J. F. Bischof (2004), A Holocene record of...

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

    SciTech Connect (OSTI)

    Peterson, Kara J.; Bochev, Pavel Blagoveston

    2013-07-01T23:59:59.000Z

    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.

  17. automatically generated anatomically: Topics by E-print Network

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

    be assessed. We describe an approach to automatically generating questions for vocabulary assessment. Tra- ditionally Eskenazi, Maxine 133 Commodity Cluster-Based Parallel...

  18. automatic coding method: Topics by E-print Network

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

    content words, key words, pragmatic H. P. Edmundson 1969-01-01 14 Automatic recognition codes for Intelligent Vehicle-Highway Systems. Open Access Theses and Dissertations Summary:...

  19. automatic refueling simulation: Topics by E-print Network

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

    (1991) the measure was used to obtain lower bounds Shallit, Jeffrey O. 57 Automatic Abduction of Qualitative Models Bradley L. R ichards Computer Technologies and Information...

  20. automatic modeling functions: Topics by E-print Network

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

    system communication; com- puting the group of symmetries Miller, Alice 31 Automatic Abduction of Qualitative Models Bradley L. R ichards Computer Technologies and Information...

  1. automatic high resolution: Topics by E-print Network

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

    with its Sun 3 workstations, Sun Melvin, Stephen 24 Automatic keywording of High Energy Physics CERN Preprints Summary: Bibliographic databases were developed from the...

  2. automatic fare collection: Topics by E-print Network

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

    A general algo- rithm for a given collective communication Dongarra, Jack 4 Collective Mind: Continuous, Automatic Learning to Computer Technologies and Information Sciences...

  3. automatic software processing: Topics by E-print Network

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

    systems Engineering Environments (PCSEEs) 2 support such projects with both tooling and processes, yet these must Ulm, Universitt 5 Automatically tuned linear...

  4. automatic headway control: Topics by E-print Network

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

    ? AUTOMATIC CONTROL COMMUNICATION Gustafsson, Fredrik 3 A Multivariate Analysis of Freeway Speed and Headway Data Texas A&M University - TxSpace Summary: The...

  5. automatic speed control: Topics by E-print Network

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

    INITIAL BUOYANCY TESTING modules for automatic control of freeboard and turbine operation are denoted Buoyancy' and Generators 12 Optimal Pitch, Speed and Fuel Control...

  6. automatic robotic spotting: Topics by E-print Network

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

    Automatic Channel Selection and Neural Signal Estimation across Channels of Neural Probes Olga is envisaged to be a central component for brain-controlled computers and robots....

  7. Automatic Dantzig-Wolfe Reformulation of Mixed Integer Programs

    E-Print Network [OSTI]

    2013-11-01T23:59:59.000Z

    Sep 20, 2012 ... bounds can be obtained from the automatically reformulated model .... matrix structure via key words in the modeling language is taken in [7,13 ...

  8. automatic modular abstractions: Topics by E-print Network

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

    Websites Summary: We propose a method for automatically generating abstract transformers for static analysis permits the analysis of loops and recursive functions. Our...

  9. automatic equipment operation: Topics by E-print Network

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

    free text against audio signals we in- vent an "automatic record review" system that labels new music audio with maximal semantic value for future re- trieval tasks. In...

  10. automatic laser inspection: Topics by E-print Network

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

    . . . . . . . . . . . . . . . . . . . . 12;Abstract Automatic analysis of digital audio data has a long tradition. Many tasks that humans solve easily, like distinguishing the...

  11. 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

  12. automatic identification system: Topics by E-print Network

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

    Universidad 3 Automatic feature-queried bird identification system based on entropy and fuzzy similarity Computer Technologies and Information Sciences Websites Summary:...

  13. automatic defect classification: Topics by E-print Network

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

    The performance of those feature sets has been evaluated by training statistical pattern recognition classifiers using real world audio collections. Based on the automatic...

  14. automatic trunk classification: Topics by E-print Network

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

    The performance of those feature sets has been evaluated by training statistical pattern recognition classifiers using real world audio collections. Based on the automatic...

  15. automatic fuzzy rule: Topics by E-print Network

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

    One of the main pros of fuzzy systems is their ability to design comprehensible models of real1 Automatic tuning of a fuzzy visual system using evolutionary algorithms:...

  16. automatic conformation prediction: Topics by E-print Network

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

    describes a system which automatically generates program documentation. Starting with a plan generated by analyzing the program, the system computes several kinds of summary...

  17. automatic noninvasive measurement: Topics by E-print Network

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

    86 An automatic method to detect defaults in the measurement chain of a sound level meter, used for Physics Websites Summary: Roger Hennequin, 78197 Trappes Cedex, France...

  18. 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

  19. automatic document classification: Topics by E-print Network

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

    Page Last Page Topic Index 1 Automatic construction of a concept hierarchy to assist Web document classification Woo Chul Cho Computer Technologies and Information Sciences...

  20. Self-assessing target with automatic feedback

    DOE Patents [OSTI]

    Larkin, Stephen W.; Kramer, Robert L.

    2004-03-02T23:59:59.000Z

    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.

  1. Design of an automatic marine corer

    E-Print Network [OSTI]

    Davis, Grayum Lloyd

    1970-01-01T23:59:59.000Z

    . Cuttings are washed to the outside of the drill bit to keep from washing the sample. The automatic coring unit is octagonal in shape with a six foot side to side distance and an overall height of twelve feet two inches. It has a weight of approximately... long cores is by rotary drilling (1). This requires a stable platform, necessitating the use ef a barge or large vessel and at least a four point anchor- ing spread (two each on bow and stern). The time consumed in deployment and retriveal...

  2. Janus: Automatic Ontology Builder from XSD Files

    E-Print Network [OSTI]

    Bedini, Ivan; Gardarin, Georges

    2010-01-01T23:59:59.000Z

    The construction of a reference ontology for a large domain still remains an hard human task. The process is sometimes assisted by software tools that facilitate the information extraction from a textual corpus. Despite of the great use of XML Schema files on the internet and especially in the B2B domain, tools that offer a complete semantic analysis of XML schemas are really rare. In this paper we introduce Janus, a tool for automatically building a reference knowledge base starting from XML Schema files. Janus also provides different useful views to simplify B2B application integration.

  3. A continuous automatic hydroponic cultivation system

    E-Print Network [OSTI]

    Reachi Gonzalez, Santiago

    1974-01-01T23:59:59.000Z

    . C. H. Samson, JW. Head of Department Dr. D. McDonald Member r. A. H. Laym n Member. August 1974 ABSTRACT A Continuous Automatic Hydroponic Cultivation Syst. m. (August 1974) Santiago Reachi Gonzalez, B. S. , Texas ARM University Co...-Chairmen of Advisory Committee: Dr. A. W Northam Dr. W. B. X, edbetter The main objective of this study is to develop a system that will provide a household with a high quality balanced vegetable mix at a cost less than existing retail pr' ces. Other objectives...

  4. Caldyne Automatics Limited | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are beingZealand Jump to:EzfeedflagBiomassSustainableCSL Gas Recovery Biomass Facility80Caldyne Automatics Limited Jump

  5. About International Cruise & Excursions International Cruise & Excursions, Inc. (ICE) is a worldwide travel and

    E-Print Network [OSTI]

    Fisher, Kathleen

    About International Cruise & Excursions International Cruise & Excursions, Inc. (ICE corporations, resorts, cruise lines and leisure travel providers. ICE provides cruise and travel programs-commerce platform, state of the art call centers and customer service and fulfillment operations. Situation ICE

  6. Web-Ice: Integrated Data Collection and Analysis for Macromolecular Crystallography

    E-Print Network [OSTI]

    Gonzalez, Ana

    2008-01-01T23:59:59.000Z

    results. A summary list is also available in Blu-Ice.Figure 7: SSRL Web-Ice interface displaying the summarizedTable 1: Programs used by Web-Ice for data analysis. Program

  7. The influence of subglacial hydrology on the flow of West Antarctic ice streams

    E-Print Network [OSTI]

    Baker, Narelle Paula Marie

    2012-04-10T23:59:59.000Z

    Subglacial hydrology is known to influence the flow of ice. However, difficulty in accessing the base of large ice sheets has made determining the interaction between ice streams, basal sediment and water difficult to discern. The aim of this thesis...

  8. 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.

    2005-01-01T23:59:59.000Z

    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 ...

  9. APPROVED ICE STORAGE AIR CONDITIONERS Revised as of 06-18-2008

    E-Print Network [OSTI]

    APPROVED ICE STORAGE AIR CONDITIONERS Revised as of 06-18-2008 The following vendors and their ice storage air conditioners models can be used in the ice storage air conditioner compliance option. Input

  10. Ice stream basal conditions from block-wise surface data inversion and simple regression models of ice stream flow: Application to

    E-Print Network [OSTI]

    Boyce, C. Kevin

    Ice stream basal conditions from block-wise surface data inversion and simple regression models of ice stream flow: Application to Bindschadler Ice Stream O. V. Sergienko,1 R. A. Bindschadler,2 P. L; published 4 December 2008. [1] Widespread basal conditions controlling ice stream flows are still beyond

  11. Ice in the Environment: Proceedings of the 16th IAHR International Symposium on Ice Dunedin, New Zealand, 2nd6th December 2002

    E-Print Network [OSTI]

    Feltham, Daniel

    Ice in the Environment: Proceedings of the 16th IAHR International Symposium on Ice Dunedin, New OF DETERMINING A GEOPHYSICAL-SCALE SEA ICE RHEOLOGY FROM LABORATORY EXPERIMENTS Daniel Feltham1 and Peter Sammonds2 and Daniel Hatton2 ABSTRACT We present a methodology that allows a sea ice rheology, suitable

  12. ICE IGERT Mission The mission of the ICE IGERT program is to exploit the synergistic interface between engineering and the life sciences to enable

    E-Print Network [OSTI]

    Mountziaris, T. J.

    1 ICE IGERT Mission The mission of the ICE IGERT program is to exploit the synergistic interface foundation for future interdisciplinary research success. ICE IGERT Curriculum Structure (minimum of 19 credits) ICE IGERT promotes broad-based graduate training in cellular engineering through the following

  13. 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

    2014-01-01T23:59:59.000Z

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

  14. JOURNAL OF GEOPHYSICAL RESEARCH, VOL. ???, XXXX, DOI:10.1029/, Frazil Deposition Under Growing Sea Ice

    E-Print Network [OSTI]

    McGuinness, Mark

    Ice M.J. McGuinness,1,4 M.J.M. Williams,2 P.J. Langhorne,3 C. Purdie,3 J. Crook4 Abstract. Platelet ice may be an important component of Antarctic land-fast sea ice. Typically, it is found at depth in first-year landfast sea ice cover, near ice shelves. To explain why platelet ice is not commonly

  15. IceCube Project Monthly Report Accomplishments

    E-Print Network [OSTI]

    Saffman, Mark

    is the culmination of a series of ICECUBE - TOTAL US and NON-US 20.8% 19.4% 17.6% 6.6% 20.4% 19.0% 16.9% 6.6% 0.0% 10.0% 20.0% 30.0% 40.0% 50.0% 60.0% 70.0% 80.0% 90.0% 100.0% 3FY02-2FY03 3FY03-2FY04 A-04 M -04 J-04 J-04 A and Safety ­ This month the IceCube Safety and Quality Assurance Manager participated in site visits

  16. Climate, Ocean and Sea Ice Modeling (COSIM)

    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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625govInstrumentstdmadapInactiveVisiting the TWPSuccessAlamosCharacterization2Climate, Ocean and Sea Ice Modeling

  17. ARM - Lesson Plans: When Land Ice Melts

    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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625govInstrumentstdmadap Documentation TDMADAP : XDC documentationBarrow, AlaskaWhen Floating Ice Melts in the SeaWhen

  18. Developing and Evaluating Ice Cloud Parameterizations by

    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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOEThe Bonneville Power AdministrationField Campaign: Potential Application toDevelopingand Evaluating Ice Cloud

  19. Automatic 3D modeling of palatal plaster casts Marco Andreetto

    E-Print Network [OSTI]

    Abu-Mostafa, Yaser S.

    duplicated by 3D printers. A second application where 3D models of palatal casts could also be usefulAutomatic 3D modeling of palatal plaster casts Marco Andreetto Dept. of Information Engineer corte@dei.unipd.it Abstract This work introduces a procedure for automatic 3D model- ing and discusses

  20. Automatic differentiation for message-passing parallel programs.

    SciTech Connect (OSTI)

    Hovland, P.

    1998-01-27T23:59:59.000Z

    Many applications require the derivatives of functions defined by computer programs. Automatic differentiation (AD) is a means of developing code to compute the derivatives of complicated functions accurately and efficiently, without the difficulties associated with developing correct code by hand. We discuss some of the issues involved in developing automatic differentiation tools for parallel programming environments.

  1. automatic test generation: Topics by E-print Network

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

    automatic test generation First Page Previous Page 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Next Page Last Page Topic Index 1 A Review of Automatic Test...

  2. automatic test card: Topics by E-print Network

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

    automatic test card First Page Previous Page 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Next Page Last Page Topic Index 1 Automatic Test Card LINAC4 SPL...

  3. automatic test patterns: Topics by E-print Network

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

    automatic test patterns First Page Previous Page 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Next Page Last Page Topic Index 1 Automatic Test Pattern...

  4. Automatic Fracture Reduction Thomas Albrecht and Thomas Vetter

    E-Print Network [OSTI]

    Vetter, Thomas

    present a method to automatically reposition the frag- ments of a broken bone based on surface meshes nailing, the correct repositioning of bone fragments is not always apparent or visible without an operation plan. We propose to achieve automatic fracture reduction by fitting the bone fragments

  5. Automatic Generation of Implementations For Object-Oriented Abstractions

    E-Print Network [OSTI]

    Texas at San Antonio, University of

    -purpose code transformation system, the POET system, for the purpose of automatic code genera- tion from high then use the POET system to au- tomatically translate the behavior specifications to type-safe OO implementations in Java or C++. Finally, we use the POET system to automatically translate the behavior speci

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

    E-Print Network [OSTI]

    and declination angles of the Sun. Gregory-type telescopes have an elliptical secondary mirror behind the primeAUTOMATIC GUIDING OF THE PRIMARY IMAGE OF SOLAR GREGORY TELESCOPES G. KÃ?VELER1, E. WIEHR2, D of solar Gregory telescopes is used for automatic guiding. This new system avoids temporal varying

  7. Modular Verification of Timed Circuits Using Automatic Abstraction

    E-Print Network [OSTI]

    Zheng, Hao

    Modular Verification of Timed Circuits Using Automatic Abstraction Hao Zheng, Eric Mercer, Member for verification of timed circuits using automatic abstraction. This approach partitions the design into modules by the RAPPID instruction length decoder designed at Intel [2]. This design was 3 times faster while using only

  8. AUTOMATIC SYNTHESIS USING GENETIC PROGRAMMING OF IMPROVED PID TUNING RULES

    E-Print Network [OSTI]

    Fernandez, Thomas

    AUTOMATIC SYNTHESIS USING GENETIC PROGRAMMING OF IMPROVED PID TUNING RULES Matthew J. Streeter1 University Abstract: Astrom and Hagglund developed tuning rules in 1995 for PID controllers that outperform genetic programming to automatically discover tuning rules for PID controllers that outperform the Astrom

  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 Rübel1 particle accelerators play a key role in the understanding of the complex acceleration process in a pipeline fashion to automatically locate and analyze high-energy particle bunches undergoing acceleration

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

    E-Print Network [OSTI]

    Knowles, David William

    Automatic Beam Path Analysis of Laser Wakefield Particle Acceleration Data Oliver R¨ubel1 particle accelerators play a key role in the understanding of the complex acceleration process in a pipeline fashion to automatically locate and analyze high energy particle bunches undergoing acceleration

  11. RIS-M-2311 AUTOMATIC FAULT TREE CONSTRUCTION WITH RIKKE

    E-Print Network [OSTI]

    RISØ-M-2311 AUTOMATIC FAULT TREE CONSTRUCTION WITH RIKKE A COMPENDIUM OF EXAMPLES, VOLUME I BASIC MODELS J.R. Taylor Abstract. Examples of automatically constructed fault trees are given. In this first are intended to illustrate the prin- ciples of fault tree construction using the RIKKE failure analysis system

  12. New Methods in Automatic Extracting H. P. EDMUNDSON

    E-Print Network [OSTI]

    Hearst, Marti

    system is parameterized to control and vary the influence of the above four components. The researchNew Methods in Automatic Extracting H. P. EDMUNDSON University of Maryland,* College Park, Maryland ABSTRACT. This paper describes new methods of automatically extracting documents for screening purposes, i

  13. Learning to Control Dynamic Systems with Automatic Quantization

    E-Print Network [OSTI]

    Ling, Charles X.

    Learning to Control Dynamic Systems with Automatic Quantization Charles X. Ling Department: Learning to Control with Automatic Quantization. 1 #12; 1 Introduction Controlling a dynamic system to control dynamic systems with unknown models is a challenging research problem. However, most previous work

  14. CGMurphi: Automatic Synthesis of Numerical Controllers for Nonlinear Hybrid Systems

    E-Print Network [OSTI]

    Tronci, Enrico

    CGMurphi: Automatic Synthesis of Numerical Controllers for Nonlinear Hybrid Systems Giuseppe Della, thus much work is being done to create automatic controller synthesis tools. When dealing with critical systems, most of the times such controllers are required to be optimal and robust, i.e., they must achieve

  15. 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 algebra PEPA. We target applications written with the high-level environment ASSIST, since the use

  16. AUTOMATIC TV LOGO DETECTION AND CLASSIFICATION IN BROADCAST VIDEOS

    E-Print Network [OSTI]

    AUTOMATIC TV LOGO DETECTION AND CLASSIFICATION IN BROADCAST VIDEOS Nedret ¨OZAY, B¨ulent SANKUR In this study1 , we present a fully automatic TV logo iden- tification system. TV logos are detected in static of a logo candidate is established, TV logos are recognized via their subspace fea- tures. Comparative

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

    DOE Patents [OSTI]

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

    1980-09-29T23:59:59.000Z

    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.

  18. Proton ordering in tetragonal and monoclinic H2O ice

    E-Print Network [OSTI]

    Yen, Fei; Berlie, Adam; Liu, Xiaodi; Goncharov, Alexander F

    2015-01-01T23:59:59.000Z

    H2O ice remains one of the most enigmatic materials as its phase diagram reveals up to sixteen solid phases. While the crystal structure of these phases has been determined, the phase boundaries and mechanisms of formation of the proton-ordered phases remain unclear. From high precision measurements of the complex dielectric constant, we probe directly the degree of ordering of the protons in H2O tetragonal ice III and monoclinic ice V down to 80 K. A broadened first-order phase transition is found to occur near 202 K we attribute to a quenched disorder of the protons which causes a continuous disordering of the protons during cooling and metastable behavior. At 126 K the protons in ice III become fully ordered, and for the case of ice V becoming fully ordered at 113 K forming ice XIII. Two triple points are proposed to exist: one at 0.35 GPa and 126 K where ices III, IX and V coexist; and another at 0.35 GPa and 113 K where ices V, IX and XIII coexist. Our findings unravel the underlying mechanism driving th...

  19. Dynamical mechanism of antifreeze proteins to prevent ice growth

    E-Print Network [OSTI]

    B. Kutschan; K. Morawetz; S. Thoms

    2014-07-24T23:59:59.000Z

    The fascinating ability of algae, insects and fishes to survive at temperatures below normal freezing is realized by antifreeze proteins (AFPs). These are surface-active molecules and interact with the diffusive water/ice interface thus preventing complete solidification. We propose a new dynamical mechanism on how these proteins inhibit the freezing of water. We apply a Ginzburg-Landau type approach to describe the phase separation in the two-component system (ice, AFP). The free energy density involves two fields: one for the ice phase with a low AFP concentration, and one for liquid water with a high AFP concentration. The time evolution of the ice reveals microstructures resulting from phase separation in the presence of AFPs. We observed a faster clustering of pre-ice structure connected to a locking of grain size by the action of AFP, which is an essentially dynamical process. The adsorption of additional water molecules is inhibited and the further growth of ice grains stopped. The interfacial energy between ice and water is lowered allowing the AFPs to form smaller critical ice nuclei. Similar to a hysteresis in magnetic materials we observe a thermodynamic hysteresis leading to a nonlinear density dependence of the freezing point depression in agreement with the experiments.

  20. How Do Cultural Differences Affect Utilization of the ICE Approach?

    E-Print Network [OSTI]

    de Weck, Olivier L.

    with permission. Abstract. Integrated Concurrent Engineering (ICE) is a design approach initially developed process: "Integrated Concurrent Engineering (ICE) is a real-time collaborative process in which-understood procedures for real-time collaboration; concurrent quantitative engineering and qualitative conversation. 4

  1. 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

  2. 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

  3. UV Irradiation of Polycyclic Aromatic Hydrocarbons in Ices

    E-Print Network [OSTI]

    . Clemett,3 Richard N. Zare3 Polycyclic aromatic hydrocarbons (PAHs) in water ice were exposed to ultra meteorites. Hydrogen and deu- terium atoms exchange readily between the PAHs and the ice, which may explain abundant and widespread class of carbon-car- rying gaseous species is believed to be PAHs (3­5). In dense

  4. 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

  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. Azimuth Variation in Microwave Backscatter over the Greenland Ice Sheet

    E-Print Network [OSTI]

    Long, David G.

    Azimuth Variation in Microwave Backscatter over the Greenland Ice Sheet Ivan S. Ashcraft and David backscatter measurements are becoming an important tool for monitoring the dynamic behavior of the Greenland ice sheet. However, most Greenland studies assume constant backscatter for varying azimuth angles

  7. Arctic catastrophes in an idealized sea ice model Ian Eisenman

    E-Print Network [OSTI]

    Eisenman, Ian

    thermodynamics, varying open water fraction, an energy balance atmosphere, and scalable CO2. We find that summer.e., reflectiveness) between sea ice and the open water that is exposed when it melts. Bare or snow-covered sea ice reflects most sunlight back to space, while the dark ocean surface absorbs most incident light. Global

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

    E-Print Network [OSTI]

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

    2013-01-01T23:59:59.000Z

    Ice thermal storage is promising technology to reduce energy costs by shifting the cooling cost from on-peak to off-peak periods. The paper discusses the optimal design of ice thermal storage and its impact on energy consumption, demand, and total...

  9. CO diffusion into amorphous H2O ices

    E-Print Network [OSTI]

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

    2015-01-01T23:59:59.000Z

    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...

  10. IceCube Project Monthly Report -June 2010 Accomplishments

    E-Print Network [OSTI]

    Saffman, Mark

    (April 29-30) and an ice drilling technology meeting (April 27-28). Cost and Schedule Performance Service Corporation and New York Air National Guard FY10 on-ice fuel and labor cost savings. Contingency. $125K WBS 1.2 Implementation Additional UW & PSL Labor to replace and refurbish drill hardware. On

  11. absorption scale ice: Topics by E-print Network

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

    absorption scale ice First Page Previous Page 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Next Page Last Page Topic Index 1 Optical properties of deep ice at...

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

    SciTech Connect (OSTI)

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

    1999-10-05T23:59:59.000Z

    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.

  13. Field demonstration of the ICE 250[trademark] Cleaning System

    SciTech Connect (OSTI)

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

    1999-10-05T23:59:59.000Z

    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 moistur2048s generated, thereby reducing cleanup and disposal costs.

  14. Methods and apparatus for rotor blade ice detection

    DOE Patents [OSTI]

    LeMieux, David Lawrence

    2006-08-08T23:59:59.000Z

    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.

  15. Fast-flowing outlet glaciers on Svalbard ice caps

    SciTech Connect (OSTI)

    Dowdeswell, J.A. (Univ. of Cambridge (England)); Collin, R.L. (University College of Wales, Aberystwyth (England))

    1990-08-01T23:59:59.000Z

    Four well-defined outlet glaciers are present on the 2510 km{sup 2} cap of Vestfonna in Nordaustlandet, Svalbard. Airborne radio echo sounding and aerial-photograph and satellite-image analysis methods are used to analyze the morphology and dynamics of the ice cap and its component outlet glaciers. The heavily crevassed outlets form linear depressions in the ice-cap surface and flow an order of magnitude faster than the ridges of uncrevassed ice between them. Ice flow on the ridges is accounted for by internal deformation alone, whereas rates of outlet glacier flow require basal motion. One outlet has recently switched into and out of a faster mode of flow. Rapid terminal advance, a change from longitudinal compression to tension, and thinning in the upper basin indicate surge behavior. Observed outlet glacier discharge is significantly greater than current inputs of mass of the ice cap, indicating that present rates of flow cannot be sustained under the contemporary climate.

  16. Ice emission and the redshifts of submillimeter sources

    E-Print Network [OSTI]

    C. C. Dudley; M. Imanishi; P. R. Maloney

    2008-02-12T23:59:59.000Z

    Observations at submillimeter wavelengths have revealed a population of sources thought to be at relatively large redshifts. The position of the 850 $\\mu$m passband on the Rayleigh-Jeans portion of the Planck function leads to a maximum redshift estimate of $z\\sim$4.5 since sources will not retain their redshift independent brightness close to the peak of the Planck function and thus drop out of surveys. Here we review evidence that ice absorption is present in the spectra of local ultraluminous infrared galaxies which are often taken as analogs for the 850 $\\mu$m source population. We consider the implication of this absorption for ice induced spectral structure at far infrared wavelengths and present marginal astronomical evidence that amorphous ice may have a feature similar to crystalline ice near 150 $\\mu$m. Recent corroborative laboratory evidence is supportive of this conclusion. It is argued that early metal enrichment by pair instability SN may lead to a high ice content relative to refractory dust at high redshift and a fairly robust detection of ice emission in a $z=6.42$ quasar is presented. It is further shown that ice emission is needed to understand the 450 $\\mu$m sources observed in the GOODS-N field. We are thus encouraged to apply far infrared ice emission models to the available observations of HDF 850.1, the brightest submillimeter source in the {\\it Hubble Deep Field}. We suggest that a redshift as large as 13 may need to be considered for this source, nearly a factor of three above the usual top estimate. Inclusion of the possibility of far infrared ice emission in the spectral energy distributions of model sources generally broadens the range of redshifts to be considered for submillimeter sources compared to models without ice emission.

  17. E-Print Network 3.0 - automatically discovering hidden Sample...

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

    for: automatically discovering hidden Page: << < 1 2 3 4 5 > >> 1 Siphoning Hidden-Web Data through Keyword-Based Interfaces Summary: automatically reconstruct a collection...

  18. automatic flow-through control: Topics by E-print Network

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

    automatic or controlled processing, depending Logan, Gordon D. 43 Declarative Camera Control for Automatic Cinematography CiteSeer Summary: Animations generated by interactive...

  19. automatic audio-conference service: Topics by E-print Network

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

    for patients with serious illness Mohaghegh, Shahab 2 AUTOMATIC TAG IDENTIFICATION IN WEB SERVICE DESCRIPTIONS Physics Websites Summary: AUTOMATIC TAG IDENTIFICATION IN WEB...

  20. Automatic feed system for ultrasonic machining

    DOE Patents [OSTI]

    Calkins, Noel C. (Los Alamos, NM)

    1994-01-01T23:59:59.000Z

    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.

  1. Crutcher introduces new automatic welding system

    SciTech Connect (OSTI)

    Not Available

    1982-04-01T23:59:59.000Z

    Designed for pipe over 16 in. but suitable for smaller diameters if modified slightly, a new automatic welding system uses the metal inert gas process to weld the root bead from the outside with a specially designed backup ring that adapts to a standard internal pipe clamp, making internal welding unnecessary. Individual welding machines travel on flexible tracks that are positioned by a track-locating device; two machines are required at each welding station. Particularly applicable to lay-barge operations, the system consists of (1) a pipe-facing machine, (2) a diesel-driven hydraulic power unit, (3) a carriage track, (4) an air-driven, air-operated, simplified pipe clamp, and (5) a welding bug assembly consisting of a carriage with drive unit, welding head, oscillator, and wire spool mount with drag-brake assembly.

  2. Automatic identification of abstract online groups

    DOE Patents [OSTI]

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

    2014-04-15T23:59:59.000Z

    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.

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

    DOE Patents [OSTI]

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

    1998-01-01T23:59:59.000Z

    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.

  4. GRAPH-BASED METHOD FOR MULTITEMPORAL SEGMENTATION OF SEA ICE FLOES FROM SATELLITE DATA

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    the Arc- tic sea ice pack in December 2007, continuously moved with the Arctic ocean currents and meltedGRAPH-BASED METHOD FOR MULTITEMPORAL SEGMENTATION OF SEA ICE FLOES FROM SATELLITE DATA Claudio, MODIS, Sea Ice Floes. ABSTRACT: Automated segmentation of the sea ice evolution would allow scientists

  5. Arctic Ice Dynamics Joint Experiment (AIDJEX) assumptions revisited and found inadequate

    E-Print Network [OSTI]

    Sulsky, Deborah L.

    the Arctic Ice Dynamics Joint Experiment (AIDJEX) assumptions about pack ice behavior with an eye to modeling the behavior of pack ice. A model based on these assumptions is needed to represent the deformation and stress in pack ice on scales from 10 to 100 km, and would need to explicitly resolve discontinuities

  6. Effect of air-sea-ice interaction on winter 1996 Southern Ocean subpolar storm distribution

    E-Print Network [OSTI]

    Columbia University

    is the baroclinic instability caused by the cold air blown from the ice pack to the warm open-ocean waters. Where with the entire pack ice/open-water region. The heat flux changes considerably in the area from continental ice to pack ice, resulting in strong baroclinicity that leads to the enhanced development of vortices. Streten

  7. 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

  8. CMU-ITC-83-029 WHITE PAPER: The ICE Execution Environment

    E-Print Network [OSTI]

    CMU-ITC-83-029 WHITE PAPER: The ICE Execution Environment Document Number 003-001/002.01 DRAFT-Mellon University Schenley Park Pittsburgh, PA 15213 #12;The ICE Execution Environment DRAFT 003- 001/002.01 U ncla ssified ( 2 The ICE Execution Environment #12;The ICE Execution Environment DRAFT 003

  9. IDENTIFYING ICE HYDROMETEOR SIGNATURES ABOVE SUMMIT, GREENLAND USING A MULTI-INSTRUMENT APPROACH

    E-Print Network [OSTI]

    Wisconsin at Madison, University of

    IDENTIFYING ICE HYDROMETEOR SIGNATURES ABOVE SUMMIT, GREENLAND USING A MULTI. These retrievals, however, may be adversely affected by ice hydrometeors commonly observed in mixed phase clouds. Research on the effect of ice hydrometeors on the microwave signal is insufficient. We establish that ice

  10. Adaptive mesh, finite volume modeling of marine ice sheets Stephen L. Cornforda

    E-Print Network [OSTI]

    Adaptive mesh, finite volume modeling of marine ice sheets Stephen L. Cornforda , Daniel F. Martinb Abstract Continental scale marine ice sheets such as the present day West Antarctic Ice Sheet are strongly phenomenon of this kind is the migration of the grounding line -- the division between ice in contact

  11. Sessions 1526 & 2526 The URI Integrated Computer Engineering Design (ICED) Curriculum

    E-Print Network [OSTI]

    Uht, Augustus K.

    Sessions 1526 & 2526 The URI Integrated Computer Engineering Design (ICED) Curriculum: Progress the ICED curriculum in the Fall of 1997. The key feature of ICED is a substantial 2-3 year long project of ICED after two years of startup operation. Some custom hardware was required for the curriculum

  12. IMPLICATIONS OF CO, GLOBAL WARMING O N GREAT LAKES ICE COVER

    E-Print Network [OSTI]

    IMPLICATIONS OF CO, GLOBAL WARMING O N GREAT LAKES ICE COVER RAYMOND A. ASSEL US. Department to project daily mean basin ice cover and annual ice cover duration for Lakes Superior and Erie. Models were), and the Oregon State University (OSU)general circulationmodels. Ice cover estimateswere made for the West

  13. OTC Paper Number 24645 GPU-Event-Mechanics Evaluation of Ice Impact Load Statistics

    E-Print Network [OSTI]

    Peters, Dennis

    OTC Paper Number 24645 GPU-Event-Mechanics Evaluation of Ice Impact Load Statistics Claude Daley of a GPU-Event-Mechanics (GEM) simulation to assess local ice loads on a vessel operating in pack ice workstation. The simulation domain contains hundreds of discrete and interacting ice floes. A simple vessel

  14. Ice-associated phytoplankton blooms in the southeastern Bering Sea Meibing Jin,1

    E-Print Network [OSTI]

    Ice-associated phytoplankton blooms in the southeastern Bering Sea Meibing Jin,1 Clara Deal,1 Jia 2007. [1] Ice-associated phytoplankton blooms in the south- eastern Bering Sea can critically impact ice algal components, our 1-D ecosystem model successfully reproduced the observed ice

  15. ESTIMATING BEDROCK AND SURFACE LAYER BOUNDARIES AND CONFIDENCE INTERVALS IN ICE SHEET RADAR IMAGERY USING MCMC

    E-Print Network [OSTI]

    Menczer, Filippo

    ESTIMATING BEDROCK AND SURFACE LAYER BOUNDARIES AND CONFIDENCE INTERVALS IN ICE SHEET RADAR IMAGERY and Computing Indiana University Bloomington, Indiana USA ABSTRACT Climate models that predict polar ice sheet behavior require accurate measurements of the bedrock-ice and ice-air bound- aries in ground

  16. Ice sheets and their dynamics Continuum thermo-mechanical model of a glacier

    E-Print Network [OSTI]

    Cerveny, Vlastislav

    Ice sheets and their dynamics Continuum thermo-mechanical model of a glacier Shallow Ice Approximation (SIA) SIA-I Iterative Improvement Technique Benchmarks Numerical modeling of ice-sheet dynamics and Cartography, Zdiby 1.6.2010 Ondej Soucek Ph.D. defense #12;Ice sheets and their dynamics Continuum thermo

  17. Ice-assisted electron beam lithography of graphene Jules A Gardener1

    E-Print Network [OSTI]

    1 Ice-assisted electron beam lithography of graphene Jules A Gardener1 and Jene A Golovchenko1 with a thin ice layer. The irradiated ice plays a crucial role in the process by providing activated species that locally remove graphene from a silicon dioxide substrate. After patterning the graphene, the ice resist

  18. Pleistocene ice and paleo-strain rates at Taylor Glacier, Antarctica S.M. Aciego a

    E-Print Network [OSTI]

    Severinghaus, Jeffrey P.

    Pleistocene ice and paleo-strain rates at Taylor Glacier, Antarctica S.M. Aciego a , K.M. Cuffey b September 2006 Abstract Ice exposed in ablation zones of ice sheets can be a valuable source of samples for paleoclimate studies and information about long-term ice dynamics. We report a 28-km long stable isotope

  19. Ice Climbing in Clear Creek Canyon A climbing trip report by Glenn Murray

    E-Print Network [OSTI]

    Ice Climbing in Clear Creek Canyon A climbing trip report by Glenn Murray SUMMARY: I climb ice in to ask about local climbing. The guys there told me there was ice nearby, in Clear Creek Canyon. I. Four pitches? Five? It was time to find a partner. The only ice climber I knew in Denver was a friend

  20. Snow and Ice Control Best Management Practices Parking Lots, Sidewalks, Roads

    E-Print Network [OSTI]

    Minnesota, University of

    Snow and Ice Control Best Management Practices Parking Lots, Sidewalks, Roads Minnesota Circuit opportunity to improve the way we manage snow and ice in Minnesota. By using snow and ice control best safer--while saving money and protecting water quality. Current Situation The snow and ice maintenance

  1. SEA ICE MAPPING ALGORITHM FOR QUIKSCAT AND SEAWINDS Quinn P. Remund and David G. Long

    E-Print Network [OSTI]

    Long, David G.

    SEA ICE MAPPING ALGORITHM FOR QUIKSCAT AND SEAWINDS Quinn P. Remund and David G. Long Brigham Young@ee.byu.edu Abstruct- Polar sea ice extent is an important input to global climate models and is considered are sensitive to the pres- ence of sea ice. An algorithm has been developed for sea ice extent detection using

  2. The ice flow behavior in the neighborhood of the grounding line. Non-Newtonian case.

    E-Print Network [OSTI]

    Fontelos, Marco

    The ice flow behavior in the neighborhood of the grounding line. Non-Newtonian case. Marco A line dynamics. The grounding line is the line where tran- sition between ice attached to the solid ground and ice floating over the sea takes place. We analyze a mathematical model describing the ice flow

  3. Instruments and Methods Intermediate-depth ice coring of high-altitude and polar glaciers

    E-Print Network [OSTI]

    Howat, Ian M.

    an electromechanical drill (EMD) and an ethanol thermal electric drill (ETED). The EMD permitted an average ice in cold and temperate ice and in clean and particle-laden ice. The influence of the ethanol drilling fluid- arctica, 2000) and an ethanol thermal electric drill (ETED; Zagorodnov and others, 1998)). Ice thicknesses

  4. Recent ice loss from the Fleming and other glaciers, Wordie Bay, West Antarctic Peninsula

    E-Print Network [OSTI]

    Kansas, University of

    that the glaciers accelerated following ice shelf removal, and have been thinning and losing mass to the ocean overRecent ice loss from the Fleming and other glaciers, Wordie Bay, West Antarctic Peninsula E. Rignot ice thickness data from 2002, reveal that the glaciers flowing into former Wordie Ice Shelf, West

  5. 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.

    2010-09-01T23:59:59.000Z

    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.

  6. Using Satellite Radar Data to Map and Monitor Variations in Great Lakes Ice Cover

    E-Print Network [OSTI]

    , for image-to-image classification, a library of backscatter signatures of different ice types is needed) classification technique has shown that different ice types in the ice cover can be identified and mapped for use with calibrated SAR imagery. III. SAR ICE CLASSIFICATION AND MAPPING During the 1997 winter season

  7. Elastic uplift in southeast Greenland due to rapid ice mass loss Shfaqat A. Khan,1

    E-Print Network [OSTI]

    Larson, Kristine

    Elastic uplift in southeast Greenland due to rapid ice mass loss Shfaqat A. Khan,1 John Wahr,2] The rapid unloading of ice from the southeastern sector of the Greenland ice sheet between 2001 and 2006), Elastic uplift in southeast Greenland due to rapid ice mass loss, Geophys. Res. Lett., 34, L21701, doi:10

  8. Experimental Validation of a Computational Fluid Dynamics Model for IAQ applications in Ice Rink Arenas

    E-Print Network [OSTI]

    Chen, Qingyan "Yan"

    1 Experimental Validation of a Computational Fluid Dynamics Model for IAQ applications in Ice Rink, USA, Fax: 617-432-4122, Abstract Many ice rink arenas have ice resurfacing equipment that uses fossil temperature distributions in ice rinks. The numerical results agree reasonably with the corresponding

  9. NAO influence on net sea ice production and exchanges in the Arctic region: a numerical study

    E-Print Network [OSTI]

    Hu, Aixue

    NAO influence on net sea ice production and exchanges in the Arctic region: a numerical study Aixue The variability of net sea ice production and sea ice exchange between the Arctic and its adjacent seas export) is the major factor controlling the net sea ice production in the Arctic region since a thinning

  10. NAO influence on net sea ice production and exchanges in the Arctic region

    E-Print Network [OSTI]

    Hu, Aixue

    NAO influence on net sea ice production and exchanges in the Arctic region Aixue Hu, Claes Rooth and Rainer Bleck February 18, 2003 Abstract The variability of the net sea ice production and the sea ice circulation model. The wind driven divergence (or ice flux export) is the major factor controlling the net sea

  11. Developing a coupled ice flow, meltwater plume model to study Developing a coupled ice flow, meltwater plume model to study interactions beneath ice shelves off the coast of West Antarctica.interactions beneath ice shelves off the coast of West Antarctica

    E-Print Network [OSTI]

    , meltwater plume model to study interactions beneath ice shelves off the coast of West Antarctica.interactions beneath ice shelves off the coast of West Antarctica. Victoria Lee1 (v.lee@bristol.ac.uk), Tony Payne1 on the Antarctic Ice Sheet. Observational studies have shown that ice shelves off the coast of West Antarctica

  12. Transoceanic infragravity waves impacting Antarctic ice shelves Peter D. Bromirski,1

    E-Print Network [OSTI]

    Boyce, C. Kevin

    Transoceanic infragravity waves impacting Antarctic ice shelves Peter D. Bromirski,1 Olga V that IG- wave forcing may produce ice-shelf fractures that enable abrupt disintegration of ice shelves impacting Antarctic ice shelves, Geophys. Res. Lett., 37, L02502, doi:10.1029/2009GL041488. 1. Introduction

  13. THE SHRINKING ARCTIC ICE CAP From the IPCC* Summary For Policymakers...

    E-Print Network [OSTI]

    THE SHRINKING ARCTIC ICE CAP From the IPCC* Summary For Policymakers... "Sea ice is projected] - a phenomenon sometimes referred to as "Arctic amplification". As Arctic temperatures rise, sea ice melts for the 20th century. The rate at which the modeled 21st century Arctic warming and sea ice melting occurs

  14. Multiple effects of ice load changes and associated stress change on magmatic systems

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    . Pressure release melting due to ice cap retreat in Iceland may at present times generate a similar amount that part of this magma may be captured in the crust, rather than being erupted. Gradual retreat of ice caps retreat of ice caps and glaciers worldwide; many of which are located in volcanic regions. The reduced ice

  15. Relationships between Arctic Sea Ice and Clouds during Autumn AXEL J. SCHWEIGER AND RON W. LINDSAY

    E-Print Network [OSTI]

    Francis, Jennifer

    , as the direct radiative effects of cloud cover changes are compensated for by changes in the temperature The connection between sea ice variability and cloud cover over the Arctic seas during autumn is investigated that cloud cover variability near the sea ice margins is strongly linked to sea ice variability. Sea ice

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

    E-Print Network [OSTI]

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

    2009-01-23T23:59:59.000Z

    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.

  17. Enhanced residual entropy in high-density nanoconfined bilayer ice

    E-Print Network [OSTI]

    Fabiano Corsetti; Jon Zubeltzu; Emilio Artacho

    2015-06-15T23:59:59.000Z

    A novel kind of crystal order in high-density nanoconfined bilayer ice is proposed from molecular dynamics and density-functional theory simulations. A first-order transition is observed between a low-temperature proton-ordered solid and a high-temperature proton-disordered solid. The latter is shown to possess crystalline order for the oxygen positions, arranged on a close-packed triangular lattice with AA stacking. Uniquely amongst the ice phases, the triangular bilayer is characterized by two levels of disorder (for the bonding network and for the protons) which results in a residual entropy twice that of bulk ice.

  18. Vacuum-UV spectroscopy of interstellar ice analogs. II. Absorption cross-sections of nonpolar ice molecules

    E-Print Network [OSTI]

    Cruz-Diaz, G A; Chen, Y -J; Yih, T -S

    2014-01-01T23:59:59.000Z

    Dust grains in cold circumstellar regions and dark-cloud interiors at 10-20 K are covered by ice mantles. A nonthermal desorption mechanism is invoked to explain the presence of gas-phase molecules in these environments, such as the photodesorption induced by irradiation of ice due to secondary ultraviolet photons. To quantify the effects of ice photoprocessing, an estimate of the photon absorption in ice mantles is required. In a recent work, we reported the vacuum-ultraviolet (VUV) absorption cross sections of nonpolar molecules in the solid phase. The aim was to estimate the VUV-absorption cross sections of nonpolar molecular ice components, including CH4, CO2, N2, and O2. The column densities of the ice samples deposited at 8 K were measured in situ by infrared spectroscopy in transmittance. VUV spectra of the ice samples were collected in the 120-160 nm (10.33-7.74 eV) range using a commercial microwave-discharged hydrogen flow lamp. We found that, as expected, solid N2 has the lowest VUV-absorption cros...

  19. 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

  20. 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