National Library of Energy BETA

Sample records for viscosity navy spe

  1. navy

    National Nuclear Security Administration (NNSA)

    5%2A en Powering the Nuclear Navy http:www.nnsa.energy.govourmissionpoweringnavy

    Page...

  2. Nuclear Navy

    SciTech Connect (OSTI)

    NONE

    1994-12-31

    This video tells the story of the Navy`s development of nuclear power and its application in long-range submarines and the growing nuclear surface force. Narrated by Frank Blair.

  3. IPSJ SIG Technical Report SPE Observer: Cell/B.E. SPE

    E-Print Network [OSTI]

    Kourai, Kenichi

    NOSCHED SPE SPE NOSCHED SPE SPE 5. Sony Computer Entertainment PlayStation3 80GB SPE 6 OS Fedora 9 5.1 SPE

  4. Nuclear Navy

    SciTech Connect (OSTI)

    Not Available

    1994-01-01

    This video tells the story of the Navy's development of nuclear power and its application in long-range submarines and the growing nuclear surface force. Narrated by Frank Blair.

  5. nuclear navy

    National Nuclear Security Administration (NNSA)

    7%2A en Powering the Nuclear Navy http:www.nnsa.energy.govourmissionpoweringnavy

    Page...

  6. Navy Reserve Co. 

    E-Print Network [OSTI]

    Unknown

    2011-08-17

    The United States Navy's involvement in the Vietnam War, especially its role in the region's inland waterways, has long been an overshadowed aspect of the conflict. Most histories ignore or minimize the Navy's contribution, especially its river...

  7. Navy Geothermal Plan

    SciTech Connect (OSTI)

    Not Available

    1984-12-01

    Domestic geothermal resources with the potential for decreasing fossil fuel use and energy cost exist at a significant number of Navy facilities. The Geothermal Plan is part of the Navy Energy R and D Program that will evaluate Navy sites and provide a technical, economic, and environmental base for subsequent resource use. One purpose of the program will be to provide for the transition of R and D funded exploratory efforts into the resource development phase. Individual Navy geothermal site projects are described as well as the organizational structure and Navy decision network. 2 figs.

  8. PEM/SPE fuel cell

    DOE Patents [OSTI]

    Grot, Stephen Andreas (Henrietta, NY)

    1998-01-01

    A PEM/SPE fuel cell including a membrane-electrode assembly (MEA) having a plurality of oriented filament embedded the face thereof for supporting the MEA and conducting current therefrom to contiguous electrode plates.

  9. PEM/SPE fuel cell

    DOE Patents [OSTI]

    Grot, S.A.

    1998-01-13

    A PEM/SPE fuel cell is described including a membrane-electrode assembly (MEA) having a plurality of oriented filament embedded the face thereof for supporting the MEA and conducting current therefrom to contiguous electrode plates. 4 figs.

  10. A STRATEGY FOR NAVY LEADERS

    E-Print Network [OSTI]

    A STRATEGY FOR DEVELOPING NAVY LEADERS Revised Draft 6 September 2012 Navy Leader Development for the 21st Century #12;|1 A STRATEGY FOR DEVELOPING NAVY LEADERS "There is one element in the profession strategic asset and are key to preserving our heritage as the world's greatest Navy. There is no priority

  11. Bravo Araby Navy Base Holtville

    E-Print Network [OSTI]

    Mesquite Loveland Imperial Highline Descanso Calexico Sand Hill Navy Base Holtville Glencliff Foothills

  12. Unexpectedly, Navy?s Superlaser Blasts Away a Record (Wired)...

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

    www.wired.comdangerroom201102unexpectedly-navys-superlaser-blasts-away-a-record Submitted: Friday, February 18...

  13. Fast Track Analysis of Shale Numerical Models A. Kalantari-Dahaghi ,SPE, S. Esmaili, SPE, West Virginia University, S.D. Mohaghegh, SPE, Intelligent Solution

    E-Print Network [OSTI]

    Mohaghegh, Shahab

    SPE 162699 Fast Track Analysis of Shale Numerical Models A. Kalantari-Dahaghi ,SPE, S. Esmaili, SPE of SPE copyright. Abstract Latest advances in shale gas reservoir simulation and modeling have made it possible to optimize and enhance the production from organic rich shale gas reservoirs. Reservoir simulator

  14. Janice C. Haith Director, Department of Navy

    E-Print Network [OSTI]

    Janice C. Haith Director, Department of Navy Deputy Chief Information Officer (Navy) (DDCIO (N)) Ms Haith became Director, Deputy Department of Navy Chief Information Officer (Navy) (formerly. In this position, she is responsible for all Chief Information Officer (CIO) matters related to the US Navy

  15. Department of the Navy Bioeconomy Activity

    Office of Energy Efficiency and Renewable Energy (EERE)

    Plenary V: Federal Activities in the Bioeconomy Department of the Navy Bioeconomy Activity Chris Tindal, Director for Operational Energy, U.S. Department of Navy

  16. Timely PTS Applications Critical to Staying Navy

    E-Print Network [OSTI]

    Timely PTS Applications Critical to Staying Navy Navy Personnel Command (NPC) is reminding commands and Sailors that submitting Perform to Serve (PTS) applications is the key to being able to stay Navy/10 explains how PTS is used to shape the Navy, and includes all business rules concerning. Commands must

  17. Satellite Navigation in Vietnam & The NAVIS Centre

    E-Print Network [OSTI]

    Sekercioglu, Y. Ahmet

    Satellite Navigation in Vietnam & The NAVIS Centre TA HAI TUNG (PhD) NAVIS CentreKme predefined incidents occurring; or each 30 s #12;"The mission of Navis is to boost, in South-East Asia." hcp://navis.hust.edu.vn #12;(Source: Mul,-GNSS Asia) #12;Milestones

  18. Department of the Navy Civilian Benefits Center

    E-Print Network [OSTI]

    Department of the Navy Civilian Benefits Center Benefits Bulletin 2010-2 DON Civilian Human Resources Web Site: Benefits Information The Deputy Assistant Secretary of the Navy (Civilian Human Resources) launched a new Web site at http://www.public.navy.mil/donhr that provides Department of the Navy

  19. Navy Leadership Disturbed by "Spice" Usage Rise Navy leaders are expressing alarm at recent statistics that

    E-Print Network [OSTI]

    Navy Leadership Disturbed by "Spice" Usage Rise Navy leaders are expressing alarm at recent, mimicking the chemical compounds found in the drug. These products are banned for Navy personnel (NAVADMIN) 108/10 in March 2010, which reemphasized the Navy's drug policy, the U.S. Navy has been

  20. Navy fuel cell demonstration project.

    SciTech Connect (OSTI)

    Black, Billy D.; Akhil, Abbas Ali

    2008-08-01

    This is the final report on a field evaluation by the Department of the Navy of twenty 5-kW PEM fuel cells carried out during 2004 and 2005 at five Navy sites located in New York, California, and Hawaii. The key objective of the effort was to obtain an engineering assessment of their military applications. Particular issues of interest were fuel cell cost, performance, reliability, and the readiness of commercial fuel cells for use as a standalone (grid-independent) power option. Two corollary objectives of the demonstration were to promote technological advances and to improve fuel performance and reliability. From a cost perspective, the capital cost of PEM fuel cells at this stage of their development is high compared to other power generation technologies. Sandia National Laboratories technical recommendation to the Navy is to remain involved in evaluating successive generations of this technology, particularly in locations with greater environmental extremes, and it encourages their increased use by the Navy.

  1. spe433-01 page 1 INTRODUCTION

    E-Print Network [OSTI]

    spe433-01 page 1 INTRODUCTION The reality of plate tectonics, as a description of relative motions 80401, USA ABSTRACT A conceptual shift is overdue in geodynamics. Popular models that present plate. These and other first- order features of global tectonics cannot be explained by conventional models. The behavior

  2. Invited Talk US Navy Seaweb Development

    E-Print Network [OSTI]

    Zhou, Shengli

    Invited Talk US Navy Seaweb Development Joe Rice Naval Postgraduate School Physics Department Monterey, CA 93943 USA Joe.Rice@navy.mil Abstract This talk traces the development of Seaweb through

  3. Department of the Navy Civilian Benefits Center

    E-Print Network [OSTI]

    Department of the Navy Civilian Benefits Center Benefits Line 888-320-2917 M - F, 7:30 a.m. ­ 7:30 p.m. ET TTY: 866-359-5277 Email: navybenefits@navy.mil http://www.public.navy.mil/donhr/Benefits Department of the Navy Civilian Benefits Center Benefits Line 888-320-2917 M - F, 7:30 a.m. ­ 7:30 p.m. ET

  4. Department of the Navy Civilian Benefits Center

    E-Print Network [OSTI]

    Department of the Navy Civilian Benefits Center Date: 26 June 2012 From: DON Benefits Officer To of the Navy systems are now ready to accept employee's Roth TSP transactions (regular and catch-up). The TSP available at http://www.public.navy.mil/donhr/Benefits/resources/Documents/Benefits%20Bulletin%2020 12

  5. DEPARTMENT OF THE NAVY NAVAL POSTGRADUATE SCHOOL

    E-Print Network [OSTI]

    DEPARTMENT OF THE NAVY NAVAL POSTGRADUATE SCHOOL 1 UNIVERSITY CIR MONTEREY, CA 93943-5000 IN REPLY FOR ADMINISTRATION AND MANAGEMENT OF NAVY FULLY-FUNDED GRADUATE EDUCATION PROGRAMS AT CIVILIAN INSTITUTIONS guidance for the U.S. Navy's fully funded graduate education programs at Civilian Institutions (CIVINS

  6. 32 | iit magazine IIT Navy V-12

    E-Print Network [OSTI]

    Heller, Barbara

    rewind 32 | iit magazine IIT Navy V-12 During the first half of the 1940s, at the request for members of the military were so numerous that by June 1943, the U.S. Army and Navy were using 70 percent the Navy contacted him to learn how many men could be accommodated at IIT and how quickly the preparations

  7. Department of the Navy Civilian Benefits Center

    E-Print Network [OSTI]

    Department of the Navy Civilian Benefits Center Date: 28 November 2011 From: DON Benefits Officer and Flexible Spending Account. The Department of the Navy Benefit Civilian Human Resources Web site at http://www.public.navy.mil/donhr/Benefits/Pages/BenefitsOpenSeason.aspx is an excellent source of Open Season

  8. Navy Lowering Upfront Costs to Save Energy

    Broader source: Energy.gov [DOE]

    A project started last year at a U.S. Navy base in Meridian, Miss., that will save thousands in taxpayer dollars has been successfully completed.

  9. A Report on Policies and Practices of the U.S. Navy for Naming the Vessels of the Navy

    E-Print Network [OSTI]

    A Report on Policies and Practices of the U.S. Navy for Naming the Vessels of the Navy Prepared by: Department of the Navy 1000 Navy Pentagon Rm. 4E720 Washington, DC the Vessels of the Navy 1 Purpose Background Orthodox Traditionalists versus Pragmatic

  10. SPE-163690-MS Synthetic, Geomechanical Logs for Marcellus Shale

    E-Print Network [OSTI]

    Mohaghegh, Shahab

    SPE-163690-MS Synthetic, Geomechanical Logs for Marcellus Shale M. O. Eshkalak, SPE, S. D of hydrocarbons from the reservoirs, notably shale, is attributed to realizing the key fundamentals of reservoir and mineralogy is crucial in order to identify the "right" pay-zone intervals for shale gas production. Also

  11. SPE 173405-MS Assisted History Matching Using Pattern Recognition Technology

    E-Print Network [OSTI]

    Mohaghegh, Shahab

    SPE 173405-MS Assisted History Matching Using Pattern Recognition Technology Alireza Shahkarami of SPE copyright. Abstract This study aims to examine the application of pattern recognition technologies to improve the time and efforts required for completing a successful history matching project. The pattern

  12. SPE -120174-PP The Future of California's Oil Supply

    E-Print Network [OSTI]

    Patzek, Tadeusz W.

    SPE -120174-PP The Future of California's Oil Supply Gregory D. Croft, University of California. The abstract must contain conspicuous acknowledgment of SPE copyright. Abstract Once an oil exporter, California now depends on imports for more than 60% of its oil supply. This paper examines the oil production

  13. WestVirginiaUniversity SPE 65675 Reservoir Characterization

    E-Print Network [OSTI]

    Mohaghegh, Shahab

    to measure effective porosity (MPHI) and irreducible water saturation (MBVI) in the reservoir rockWestVirginiaUniversity SPE 65675 SPE 65675 Reservoir Characterization Through Synthetic Logs Shahab cost effective way for reservoir characterization. · The methodology uses the available well log data

  14. ARMY, MARINE CORPS, NAVY, AIR FORCE MULTISERVICE TACTICS,

    E-Print Network [OSTI]

    US Army Corps of Engineers

    ARMY, MARINE CORPS, NAVY, AIR FORCE MULTISERVICE TACTICS, TECHNIQUES, AND PROCEDURES Development and Integration T. L. DAVISON THOMAS J. LOFTUS Captain, US Navy Major General, USAF, MC, CFS Acting Assistant Surgeon General Navy Warfare Development Command Health Care Operations Office

  15. U.S. Navy Social Media Registration Checklist December 2013

    E-Print Network [OSTI]

    1 U.S. Navy Social Media Registration Checklist December 2013 Thank you for your interest in registering with the Navy's social media directory. Before you contact the Navy's Emerging Media Team at 703- 614-9154 or usnsocialmedia

  16. Departments of Energy, Navy, and Agriculture Invest $210 million...

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

    | Photo courtesy of U.S. Navy. Energy Department Joins Agriculture and Navy in the Fight for Clean Energy Transportation Photo courtesy of U.S. Navy Energy Department Joins...

  17. The Department of the Navy's Research Development and Acquisition...

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

    The Department of the Navy's Research Development and Acquisition Community Efforts to Achieve the Navy's Energy Goals Enabling Energy Security Strategic Directions The Department...

  18. Departments of the Navy, Energy and Agriculture Invest in Construction...

    Office of Environmental Management (EM)

    being announced today will help expand the operational capability of our Navy and Marine Corps around the world," said Secretary of the Navy Ray Mabus. "In today's complex...

  19. navy

    National Nuclear Security Administration (NNSA)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of NaturalDukeWakefield Municipal GasAdministration Medal01 Sandia4) August 20123/%2A en46Afedkcp |field2/%2A

  20. The Navy's Program in Nanoscience and Nanotechnology A Look Ahead

    E-Print Network [OSTI]

    Maryland at College Park, University of

    The Navy's Program in Nanoscience and Nanotechnology ­ A Look Ahead Robert Kavetsky Office of Naval Research 800 North Quincy Street, Arlington, VA., USA Robert_Kavetsky@onr.navy.mil ABSTRACT The Navy to building the "Navy After Next". The Office of Naval Research provided a leadership role in exploring those

  1. DEPARTMENT OF THE NAVY OFFICE OF THE SECRETARY

    E-Print Network [OSTI]

    DEPARTMENT OF THE NAVY OFFICE OF THE SECRETARY 1000 NAVY PENTAGON WASHINGTON. D.C. 20350·1000 SECNAVINST 1524.2B DASN (MPP) October 27, 2005 SECNAV INSTRUCTION 1524.2B From: Secretary of the Navy Subj, Section 7041-7047, establishes the Naval Postgraduate School (NPS) and empowers the Secretary of the Navy

  2. Acoustic Mine Detection UsingAcoustic Mine Detection Using the Navy' CASS/GRAB Modelthe Navy' CASS/GRAB Model

    E-Print Network [OSTI]

    Chu, Peter C.

    Acoustic Mine Detection UsingAcoustic Mine Detection Using the Navy' CASS/GRAB Modelthe Navy' CASS hunting component of the U.S. Navy's Mine Hunting and Countermeasure ships. #12;Detection Sonar and MOODS. Global GDEM has a 30'30' resolution U.S. Navy's Operationally important areas contain resolutions

  3. Department of the Navy, DPA Presentation

    Broader source: Energy.gov [DOE]

    Session 1-B: Advancing Alternative Fuels for the Military and Aviation Sector Breakout Session 1: New Developments and Hot Topics Chris Tindal, Director of Operational Energy, Office of the Deputy Assistant Secretary of the Navy for Energy

  4. RELAP5 posttest calculation of IAEA-SPE-4

    SciTech Connect (OSTI)

    Petelin, S.; Mavko, B.; Parzer, I.; Prosek, A.

    1994-12-31

    The International Atomic Energy Agency`s Fourth Standard Problem Exercise (IAEA-SPE-4) was performed at the PMK-2 facility. The PMK-2 facility is designed to study processes following small- and medium-size breaks in the primary system and natural circulation in VVER-440 plants. The IAEA-SPE-4 experiment represents a cold-leg side small break, similar to the IAEA-SPE-2, with the exception of the high-pressure safety injection being unavailable, and the secondary side bleed and feed initiation. The break valve was located at the dead end of a vertical downcomer, which in fact simulates a break in the reactor vessel itself, and should be unlikely to happen in a real nuclear power plant (NPP). Three different RELAP5 code versions were used for the transient simulation in order to assess the calculations with test results.

  5. Navy Mobility Fuels Forecasting System report: Navy fuel production in the year 2000

    SciTech Connect (OSTI)

    Hadder, G.R.; Davis, R.M.

    1991-09-01

    The Refinery Yield Model of the Navy Mobility Fuels Forecasting System has been used to study the feasibility and quality of Navy JP-5 jet fuel and F-76 marine diesel fuel for two scenarios in the year 2000. Both scenarios account for environmental regulations for fuels produced in the US and assume that Eastern Europe, the USSR, and the People`s Republic of China have free market economies. One scenario is based on business-as-usual market conditions for the year 2000. The second scenario is similar to first except that USSR crude oil production is 24 percent lower. During lower oil production in the USSR., there are no adverse effects on Navy fuel availability, but JP-5 is generally a poorer quality fuel relative to business-as-usual in the year 2000. In comparison with 1990, there are two potential problems areas for future Navy fuel quality. The first problem is increased aromaticity of domestically produced Navy fuels. Higher percentages of aromatics could have adverse effects on storage, handling, and combustion characteristics of both JP-5 and F-76. The second, and related, problem is that highly aromatic light cycle oils are blended into F-76 at percentages which promote fuel instability. It is recommended that the Navy continue to monitor the projected trend toward increased aromaticity in JP-5 and F-76 and high percentages of light cycle oils in F-76. These potential problems should be important considerations in research and development for future Navy engines.

  6. Navy Mobility Fuels Forecasting System report: Navy fuel production in the year 2000

    SciTech Connect (OSTI)

    Hadder, G.R.; Davis, R.M.

    1991-09-01

    The Refinery Yield Model of the Navy Mobility Fuels Forecasting System has been used to study the feasibility and quality of Navy JP-5 jet fuel and F-76 marine diesel fuel for two scenarios in the year 2000. Both scenarios account for environmental regulations for fuels produced in the US and assume that Eastern Europe, the USSR, and the People's Republic of China have free market economies. One scenario is based on business-as-usual market conditions for the year 2000. The second scenario is similar to first except that USSR crude oil production is 24 percent lower. During lower oil production in the USSR., there are no adverse effects on Navy fuel availability, but JP-5 is generally a poorer quality fuel relative to business-as-usual in the year 2000. In comparison with 1990, there are two potential problems areas for future Navy fuel quality. The first problem is increased aromaticity of domestically produced Navy fuels. Higher percentages of aromatics could have adverse effects on storage, handling, and combustion characteristics of both JP-5 and F-76. The second, and related, problem is that highly aromatic light cycle oils are blended into F-76 at percentages which promote fuel instability. It is recommended that the Navy continue to monitor the projected trend toward increased aromaticity in JP-5 and F-76 and high percentages of light cycle oils in F-76. These potential problems should be important considerations in research and development for future Navy engines.

  7. The Department of the Navy's Research Development and Acquisition Community

    E-Print Network [OSTI]

    The Department of the Navy's Research Development and Acquisition Community Efforts to Achieve the Navy's Energy Goals Enabling Energy Security Strategic Directions Dr. John V. Amy, Jr. ASN (RDA) CHSENG

  8. AZIENDA (denominazione e indirizzo): Grandi Navi Veloci Spa

    E-Print Network [OSTI]

    Robbiano, Lorenzo

    AZIENDA (denominazione e indirizzo): Grandi Navi Veloci Spa Via Fieschi 17 16121 Genova SEDE DEL. Segue inoltre aspetti legati alle navi correlati con le telecomunicazioni e con le attività di cablaggio

  9. UNIT TYPE MILITARY PROVIDES IIT PROVIDES (Navy/Marines)

    E-Print Network [OSTI]

    Heller, Barbara

    UNIT TYPE MILITARY PROVIDES IIT PROVIDES Naval (Navy/Marines) 4 year­Type 1 Full tuition and fees. Room and board* for all 4 years. Navy (Must be currently enlisted personnel) STA-21 Seaman to Admiral

  10. Navy Breaks World Record With Futuristic Free-Electron Laser...

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

    foxnews.comscitech20110218navy-breaks-world-record-futuristic-laser-getting-real Submitted: Sunday, February 20, 2011...

  11. Project Title: Navy-Civilian Relations Bachelor of Arts Internship

    E-Print Network [OSTI]

    Hickman, Mark

    Project Title: Navy-Civilian Relations Bachelor of Arts Internship Company/Organization: The Royal New Zealand Navy Intern Position Title: Researcher Organisation Supervisor: Lance Kenyon, Warrant February, 11:00 am Project Description: The Royal New Zealand Navy identifies itself as protecting New

  12. Samuel E. Bevins, PE DIRECTOR, NAVY CRANE CENTER

    E-Print Network [OSTI]

    Samuel E. Bevins, PE DIRECTOR, NAVY CRANE CENTER NAVAL FACILITIES ENGINEERING COMMAND Mr. Samuel E. (Sam) Bevins is currently serving as Director of the Navy Crane Center. He joined NAVFAC in the Senior Executive Service in May 1998, after over 30 years with Newport News Shipbuilding (NNS). The Navy Crane

  13. Thomas W. Hicks Deputy Under Secretary of the Navy

    E-Print Network [OSTI]

    Thomas W. Hicks Deputy Under Secretary of the Navy Deputy Chief Management Officer Tom Hicks was appointed as Deputy Under Secretary of the Navy / Deputy Chief Management Officer in August 2013. In this capacity, he oversees all Department of the Navy business operations, process, and efficiency initiatives

  14. SPE-169507-MS Artificial Intelligence (AI) Assisted History Matching

    E-Print Network [OSTI]

    Mohaghegh, Shahab

    SPE-169507-MS Artificial Intelligence (AI) Assisted History Matching Alireza Shahkarami, Shahab D a successful history matching project. The pattern recognition capabilities of Artificial Intelligence and Data the history matching process. SRM is an intelligent prototype of the full-field reservoir simulation model

  15. Navy's Section 2922a Legislation Success Stories

    Broader source: Energy.gov [DOE]

    Presentation—given at the Fall 2011 Federal Utility Partnership Working Group (FUPWG) meeting—features U.S. Department of Navy success stories in relation to Section 2922a legislation, which involves contracts for energy or fuel for military installations.

  16. Third party and shared savings contracting in the Navy

    SciTech Connect (OSTI)

    Boothe, T.

    1986-03-01

    Every year the Navy spends close to $4 billion for energy. Nearly $1 billion of the $4 billion is spent for energy for Naval bases. The Navy has many programs to reduce shore facilities energy costs, and is starting to use third party and shared savings contracting. Navy experience with these programs is briefly summarized, and examples are given. The Navy's position is that they and the private sector must work together to establish contracting relationships that will continue to reduce Navy costs while providing profitable business opportunities.

  17. Site Name : NAVIDAD Author : D. Carrizo E. Contreras C. Arriagada Site Code : NAVI date : year 08 month 03 day 07

    E-Print Network [OSTI]

    Vigny, Christophe

    NAVI 1/6 Site Name : NAVIDAD Author : D. Carrizo ­ E. Contreras ­ C. Arriagada Site Code : NAVI: Alcalde Horacio Maldonado Keys: Margarita Cepeda #12;NAVI 2/6 Receiver: Trimble NetRS S/N: 4723133161 cable. #12;NAVI 3/6 ADDITIONAL INFORMATION #12;NAVI 4/6 ACCESS SKETCH MAP #12;NAVI 5/6 #12;NAVI 6/6 SITE

  18. Exact Solutions in a Model of Vertical Gas Migration Dmitriy B. Silin, SPE, Lawrence Berkeley National Laboratory / UC Berkeley; Tad W. Patzek, SPE,

    E-Print Network [OSTI]

    Patzek, Tadeusz W.

    SPE 103145 Exact Solutions in a Model of Vertical Gas Migration Dmitriy B. Silin, SPE, Lawrence questions re- garding the feasibility of this technology is the potential rate of leakage out of the primary of the velocity of plume migra- tion provides a conservative estimate for the time of ver- tical migration

  19. Performance of Fractured Horizontal Wells in High-Permeability Reservoirs P. Valk, SPE and M. J. Economides, SPE, Texas A&M University

    E-Print Network [OSTI]

    Valkó, Peter

    dimensionless conductivity hydraulic fractures. The possibility of fracturing horizontal wells longitudinallySPE 31149 Performance of Fractured Horizontal Wells in High-Permeability Reservoirs P. Valkó, SPE-214-952-9435. Abstract Two of the most important recent developments in petroleum production are horizontal wells

  20. Data Release Report for Source Physics Experiments 2 and 3 (SPE-2 and SPE-3) Nevada National Security Site

    SciTech Connect (OSTI)

    Townsend, Margaret; Obi, Curtis

    2015-04-30

    The second Source Physics Experiment shot (SPE-2) was conducted in Nevada on October 25, 2011, at 1900:00.011623 Greenwich Mean Time (GMT). The explosive source was 997 kilograms (kg) trinitrotoluene (TNT) equivalent of sensitized heavy ammonium fuel oil (SHANFO) detonated at a depth of 45.7 meters (m). The third Source Physics Experiment shot (SPE-3) was conducted in Nevada on July 24, 2012, at 1800:00.44835 GMT. The explosive source was 905 kg TNT equivalent of SHANFO detonated at a depth of 45.8 m. Both shots were recorded by an extensive set of instrumentation that includes sensors both at near-field (less than 100 m) and far-field (100 m or greater) distances. The near-field instruments consisted of three-component accelerometers deployed in boreholes at 15, 46, and 55 m depths around the shot and a set of single-component vertical accelerometers on the surface. The far-field network was composed of a variety of seismic and acoustic sensors, including short-period geophones, broadband seismometers, three-component accelerometers, and rotational seismometers at distances of 100 m to 25 kilometers. This report coincides with the release of these data for analysts and organizations that are not participants in this program. This report describes the second and third Source Physics Experiment shots and the various types of near-field and farfield data that are available.This revised document includes reports on baseline shift corrections for the SPE-2 and SPE-3 shots that were missing from the original January 2015 version.

  1. ARMY, MARINE CORPS, NAVY, AIR FORCE MULTI-SERVICE TACTICS, TECHNIQUES, AND PROCEDURES

    E-Print Network [OSTI]

    US Army Corps of Engineers

    ARMY, MARINE CORPS, NAVY, AIR FORCE MULTI-SERVICE TACTICS, TECHNIQUES, AND PROCEDURES WENDI B. CARPENTER THOMAS J. LOFTUS Rear Admiral, US Navy Major General, USAF, MC, CFS Commander, Navy the US Marine Corps Web site (https://www.doctrine.usmc.mil); through the US Navy at Navy Knowledge

  2. Memorandum of Understanding Between The Department Of The Navy...

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

    Memorandum of Understanding Between The Department Of The Navy And The Department of Energy And the Department of Agriculture Memorandum of Understanding Between The Department Of...

  3. California: Advanced 'Drop-In' Biofuels Power the Navy's Green...

    Energy Savers [EERE]

    Developing Cheaper Algae Biofuels, Brings Jobs to Pennsylvania Fueling the Navy's Great Green Fleet with Advanced Biofuels Cellana, Inc.'s Kona Demonstration Facility is working...

  4. 11 Navy sites to save $871,000 yearly

    Broader source: Energy.gov [DOE]

    The U.S. Navy is installing solar energy systems on 32 buildings at 11 naval installations across Florida, Mississippi and Texas.

  5. The Board is a discretionary Federal advisory committee and shall provide independent advice to the Secretary of Defense through the Secretary of the Navy and other Navy

    E-Print Network [OSTI]

    to the Secretary of Defense through the Secretary of the Navy and other Navy Component Heads as determined by the Secretary of the Navy on matters relating to the Naval Postgraduate School and the Naval War College, facilities, and other matters of interest. The Board shall report to the Secretary of the Navy, through

  6. Navy 1 Geothermal Area | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustmentsShirleyEnergyTher i nAand DOEDepartment ofProgramImports by Pipeline intosome ofNationalNavy 1

  7. ARPA-E 2011 Keynote: Ray Mabus, Secretary of the Navy

    Office of Energy Efficiency and Renewable Energy (EERE)

    Secretary of the Navy Ray Mabus addresses the 2nd annual ARPA-E Energy Innovation Summit on the Navy's fuel consumption and successful implementation of biofuels.

  8. Navy-ship plastic waste recycled into marine pilings

    SciTech Connect (OSTI)

    March, F.A. [Seaward International Inc., Clearbrook, VA (United States)

    1996-02-01

    Seaward International Inc., developed a new, composite, structurally reinforced, plastic-composite marine piling fabricated from 100 percent recycled plastic. A cooperative research program was begun in 1995 between the Navy and Seaward to develop a use for Navy ships waste plastic as a core in the construction of the marine piling.

  9. Data Release Report for Source Physics Experiments 2 and 3 (SPE-2 and SPE-3) Nevada National Security Site

    SciTech Connect (OSTI)

    Townsend, Margaret; Obi, Curtis

    2015-01-26

    The second Source Physics Experiment shot (SPE-2) was conducted in Nevada on October 25, 2011, at 1900:00.011623 Greenwich Mean Time (GMT). The explosive source was 997 kilograms (kg) trinitrotoluene (TNT) equivalent of sensitized heavy ammonium fuel oil (SHANFO) detonated at a depth of 45.7 meters (m). The third Source Physics Experiment shot (SPE-3) was conducted in Nevada on July 24, 2012, at 1800:00.44835 GMT. The explosive source was 905 kg TNT equivalent of SHANFO detonated at a depth of 45.8 m. Both shots were recorded by an extensive set of instrumentation that includes sensors both at near-field (less than 100 m) and far-field (100 m or greater) distances. The near-field instruments consisted of three-component accelerometers deployed in boreholes at 15, 46, and 55 m depths around the shot and a set of single-component vertical accelerometers on the surface. The far-field network was composed of a variety of seismic and acoustic sensors, including short-period geophones, broadband seismometers, three-component accelerometers, and rotational seismometers at distances of 100 m to 25 kilometers. This report coincides with the release of these data for analysts and organizations that are not participants in this program. This report describes the second and third Source Physics Experiment shots and the various types of near-field and far-field data that are available.

  10. SchlumbergerPrivate A.Kalantari-Dahaghi, S.D.Mohaghegh,SPE,

    E-Print Network [OSTI]

    Mohaghegh, Shahab

    -Darcy flow and flow dependent skin (Krishna et al.2010) #12;(Song 2010) #12;Methodology #12;· Gas Composition for Sensitivity Study of Shale Gas Reservoir SPE 141058 SPE 2011 Production and Operation Symposium Oklahoma #12;Objective · Integrated workflow to capturing the essential characteristics of shale gas reservoirs

  11. Understanding the Rate of Clean Up for Oil Zones after a Gel Treatment R.S. Seright, SPE, New Mexico Petroleum Recovery Research Center, W. Brent Lindquist, SPE, and Rong Cai,

    E-Print Network [OSTI]

    New York at Stoney Brook, State University of

    SPE 112976 Understanding the Rate of Clean Up for Oil Zones after a Gel Treatment R.S. Seright, SPE at the 2008 SPE Improved Oil Recovery Symposium held in Tulsa, Oklahoma, U.S.A., 19­23 April 2008. This paper to establish why pore-filling Cr(III)-acetate- HPAM gels reduced permeability to water much more than to oil

  12. Method of making MEA for PEM/SPE fuel cell

    DOE Patents [OSTI]

    Hulett, Jay S. (West Henrietta, NY)

    2000-01-01

    A method of making a membrane-electrode-assembly (MEA) for a PEM/SPE fuel cell comprising applying a slurry of electrode-forming material directly onto a membrane-electrolyte film. The slurry comprises a liquid vehicle carrying catalyst particles and a binder for the catalyst particles. The membrane-electrolyte is preswollen by contact with the vehicle before the electrode-forming slurry is applied to the membrane-electrolyte. The swollen membrane-electrolyte is constrained against shrinking in the "x" and "y" directions during drying. Following assembly of the fuel cell, the MEA is rehydrated inside the fuel cell such that it swells in the "z" direction for enhanced electrical contact with contiguous electrically conductive components of the fuel cell.

  13. U.S. Navy Promotion and Retention by Race and Sex Amos Golan, American University

    E-Print Network [OSTI]

    Perloff, Jeffrey M.

    U.S. Navy Promotion and Retention by Race and Sex Amos Golan, American University William Greene The Navy's promotion-retention process involves two successive decisions: The Navy decides whether an individual is selected for promotion, and then, conditional on the Navy's decision, the sailor decides

  14. DEPARTMENT OF THE NAVY OFfiCE OF THE CHIEF OF NAVAL OPERATIONS

    E-Print Network [OSTI]

    DEPARTMENT OF THE NAVY OFfiCE OF THE CHIEF OF NAVAL OPERATIONS 2000 NAVY PENTAGON WASHINGTON, DC: Chief of Naval Operations Subj , NAVY PASSENGER TRAVEL Ref: (al 000 Di rective 5154.29 of 9 Marc h 1993 on the management , execution, and funding of passenger travel for Navy personne l . This i n struction

  15. Philadelphia Navy Yard: UESC Project with Philadelphia Gas Works

    Broader source: Energy.gov [DOE]

    Presentation—given at the Fall 2011 Federal Utility Partnership Working Group (FUPWG) meeting—provides information on the Philadelphia Navy Yard's utility energy services contract (UESC) project with Philadelphia Gas Works (PGW).

  16. Design and analysis of US Navy shipbuilding contract architecture

    E-Print Network [OSTI]

    McCoy, Kathleen Marie, LCDR

    2015-01-01

    Contracting for US Navy ship procurement is complex due several factors such as budgetary and political concerns, sole or near sole source environments, and long lead-time construction. In the current climate of shrinking ...

  17. Anomalous-viscosity current drive

    DOE Patents [OSTI]

    Stix, T.H.; Ono, M.

    1986-04-25

    The present invention relates to a method and apparatus for maintaining a steady-state current for magnetically confining the plasma in a toroidal magnetic confinement device using anomalous viscosity current drive. A second aspect of this invention relates to an apparatus and method for the start-up of a magnetically confined toroidal plasma.

  18. Pre-shot simulations of far-field ground motion for the Source Physics Experiment (SPE) Explosions at the Climax Stock, Nevada National Security Site: SPE2

    SciTech Connect (OSTI)

    Mellors, R J; Rodgers, A; Walter, W; Ford, S; Xu, H; Matzel, E; Myers, S; Petersson, N A; Sjogreen, B; Hauk, T; Wagoner, J

    2011-10-18

    The Source Physics Experiment (SPE) is planning a 1000 kg (TNT equivalent) shot (SPE2) at the Nevada National Security Site (NNSS) in a granite borehole at a depth (canister centroid) of 45 meters. This shot follows an earlier shot of 100 kg in the same borehole at a depth 60 m. Surrounding the shotpoint is an extensive array of seismic sensors arrayed in 5 radial lines extending out 2 km to the north and east and approximately 10-15 to the south and west. Prior to SPE1, simulations using a finite difference code and a 3D numerical model based on the geologic setting were conducted, which predicted higher amplitudes to the south and east in the alluvium of Yucca Flat along with significant energy on the transverse components caused by scattering within the 3D volume along with some contribution by topographic scattering. Observations from the SPE1 shot largely confirmed these predictions although the ratio of transverse energy relative to the vertical and radial components was in general larger than predicted. A new set of simulations has been conducted for the upcoming SPE2 shot. These include improvements to the velocity model based on SPE1 observations as well as new capabilities added to the simulation code. The most significant is the addition of a new source model within the finite difference code by using the predicted ground velocities from a hydrodynamic code (GEODYN) as driving condition on the boundaries of a cube embedded within WPP which provides a more sophisticated source modeling capability linked directly to source site materials (e.g. granite) and type and size of source. Two sets of SPE2 simulations are conducted, one with a GEODYN source and 3D complex media (no topography node spacing of 5 m) and one with a standard isotropic pre-defined time function (3D complex media with topography, node spacing of 5 m). Results were provided as time series at specific points corresponding to sensor locations for both translational (x,y,z) and rotational components. Estimates of spectral scaling for SPE2 are provided using a modified version of the Mueller-Murphy model. An estimate of expected aftershock probabilities were also provided, based on the methodology of Ford and Walter, [2010].

  19. Effective Viscosity of Confined Hydrocarbons

    E-Print Network [OSTI]

    I. M. Sivebaek; V. N. Samoilov; B. N. J. Persson

    2012-01-24

    We present molecular dynamics friction calculations for confined hydrocarbon films with molecular lengths from 20 to 1400 carbon atoms. We find that the logarithm of the effective viscosity \\mu eff for nanometer-thin films depends linearly on the logarithm of the shear rate: log(effective viscosity) = C - n log (shear rate), where n varies from 1 (solidlike friction) at very low temperatures to 0 (Newtonian liquid) at very high temperatures, following an inverse sigmoidal curve. Only the shortest chain molecules melt, whereas the longer ones only show a softening in the studied temperature interval 0 < T < 900 K. The results are important for the frictional properties of very thin (nanometer) films and to estimate their thermal durability.

  20. Fighting engineers : the U.S. Navy and mechanical engineering, 1840-1905

    E-Print Network [OSTI]

    Foley, Brendan Patrick, 1968-

    2003-01-01

    Fighting Engineers examines social conflict as the cause of the formation of professional mechanical engineering in the nineteenth century U.S. Navy. In the middle of that century, the Navy began to utilize steam engines ...

  1. Flexibility in early stage design of US Navy ships : an analysis of options

    E-Print Network [OSTI]

    Page, Jonathan (Jonathan Edward)

    2011-01-01

    This thesis explores design options for naval vessels and provides a framework for analyzing their benefit to the Navy. Future demands on Navy warships, such as new or changing missions and capabilities, are unknowns at ...

  2. Detection of Suspended Sediment Effect on Sidescan Sonar Imagery Using the Navy's CASS-GRAB Model

    E-Print Network [OSTI]

    Chu, Peter C.

    Detection of Suspended Sediment Effect on Sidescan Sonar Imagery Using the Navy's CASS-GRAB Model P of suspended sediment layer can aid the Navy in the detection of mines using the sonar imagery. This study

  3. U.S. Department of the Navy: Driving Alternative Fuels Adoption

    Office of Energy Efficiency and Renewable Energy (EERE)

    Plenary III: Early Market Adopters U.S. Department of the Navy: Driving Alternative Fuels Adoption Chris Tindal, Director for Operational Energy, Office of the Deputy Assistant Secretary of the Navy for Energy

  4. TECO BGA Completes Milestone Project for U.S. Navy 

    E-Print Network [OSTI]

    Ossi, M.

    2002-01-01

    TECO BGA completes milestone project for U.S. Navy Matthew Ossi TECO BGA TECO BGA and its affiliate Peoples Gas System teamed with the United States Navy to develop and implement an innovative energy conservation project for the military... and aging steam plant serving the base - began with a contract signing in September 1999. After breaking ground in February 2000, the first new steam plant was on line by August. The existing central steam plant was taken off line the end of that same...

  5. Lyndon Johnson and the navy 1937-1948 

    E-Print Network [OSTI]

    Haussman, Harley Russell

    1983-01-01

    LYNDON JOHNSON AND THE NAVY 1937-1948 A Thesis by HARLEY RUSSELL HAUSSMAN Submitted to the Graduate College of Texas ASM University in partial fulfillment of the requirements for the degree of MASTER OF ARTS August 1983 Major Subject...: History LYNDON JOHNSON AND THE NAVY 1937-1948 A Thesis by HARLEY RUSSELL HAUSSMAN Approved as to style and content by: Ro rt A. Ca vert (Chairman of Committee) R. J. Adams (Member) Larry D. Hill (Member) H. E. Benton (Member) enry C. Det off...

  6. Idaho, Navy, DOE agree on shipments to, from INEL

    SciTech Connect (OSTI)

    Tompkins, B.

    1995-12-01

    This report describes aspects of a legal agreement between the U.S. Navy, the state of Idaho, and the United States Department of Energy (US DOE) regarding shipments of radioactive wastes. The agreement will allow for the shipment of 244 spent fuel shipments from the Fort St Vrain facility in Colorado, if a repository or interim storage facility outside Idaho is open and accepting spent fuel from INEL. The number of shipments to the INEL will be limited to 1133, instead of the 1940 originally planned. The Navy will be allowed 575 total shipments through the year 2035.

  7. Navy's Superlaser Is More Than a Weapon (Wired.com) | Jefferson...

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

    wired.comdangerroom201011navys-super-laser-wont-just-be-a-weapon Submitted: Wednesday, November 10, 2010...

  8. 08 September 2014 Judge Navi Pillay to speak on advancing human rights in SA and

    E-Print Network [OSTI]

    Jarrett, Thomas H.

    08 September 2014 Judge Navi Pillay to speak on advancing human rights in SA and the world Annual Navanethem (Navi) Pillay ahead of delivering the 15th Annual Steve Biko Memorial Lecture at the University the caste-based system. About Judge Navi Pillay Judge Pillay has had an illustrious career. She became

  9. February 2012 Did you know that the Navy Memorial in Washington D.C. is

    E-Print Network [OSTI]

    February 2012 004/12 Did you know that the Navy Memorial in Washington D.C. is is honoring all://navymemorial.org/yotc/Home/tabid/224/Default.aspx Challenge to all: in the Navy Log. This is your free opportunity to be entered and activities occurring across our Navy to support YOTC through this Facebook page: http

  10. Premio Perini Navi S.p.A. IL COMITATO LEONARDO ITALIAN QUALIT COMMITTE HA

    E-Print Network [OSTI]

    Segatti, Antonio

    1 Premio Perini Navi S.p.A. IL COMITATO LEONARDO ­ ITALIAN QUALITÀ COMMITTE ­ HA DELIBERATO DI DELEGATO DI PERINI NAVI SPA. - ANNO 2011 - "Progetto di un natante ad uso tender per un'imbarcazione a vela dalla direzione della Perini Navi S.p.A. FINALITÀ: Premiare i due migliori progetti relativi ad un

  11. Decreased Funding Reduces Orders Timeline Citing the impact of reduced funding, Navy

    E-Print Network [OSTI]

    Decreased Funding Reduces Orders Timeline Citing the impact of reduced funding, Navy announced Feb that allows for continuous normal operations while a final budget is approved. Navy Personnel Command the orders are released. Navy has utilized this prioritization strategy in previous PCS funding

  12. DCPP Contact Information Assistant for Administration, Office of the Under Secretary of the Navy (AAUSN)

    E-Print Network [OSTI]

    DCPP Contact Information Assistant for Administration, Office of the Under Secretary of the Navy (AAUSN) RM 5B546, Pentagon Phone: 703-693-0888 Washington DC 20350-1000 DSN: 223 http://www.donhq.navy-3211 Washington DC 20372-5300 http://www.med.navy.mil/pages/default.aspx Chief of Naval Personnel (OPNAV Staff

  13. Navy aquatic hazardous waste sites: the problem and possible solutions. Final report

    SciTech Connect (OSTI)

    Johnston, R.K.; Wild, W.J.; Richter, K.E.; Lapota, D.; Stang, P.M.

    1989-08-01

    Data on 367 hazardous waste disposal sites at 58 Navy Marine Corps activities, located in the coastal zone, were reviewed to characterize the contaminants, disposal methods, and potentially impacted environments present at navy aquatic hazardous waste sites. This report identifies Navy aquatic hazardous waste site problems, assesses technology requirements, and describes remedial pilot projects being initiated at impacted aquatic sites.

  14. Air Force | Army | Marine Corps Navy & Coast Guard General of the Air Force/Army

    E-Print Network [OSTI]

    Air Force | Army | Marine Corps Navy & Coast Guard O-10 General of the Air Force/Army (Reserved Corps Navy & Coast Guard WarrantOfficers No Warrant Officer Rank Warrant Officer 1 Chief Warrant Officer Warrant Officer 5 Air Force Army Marine Corps Navy & Coast Guard E-9 Chief Master Sergeant of the Air

  15. The Navy released NAVADMIN 406/10, Dec. 17, announcing the creation of the

    E-Print Network [OSTI]

    The Navy released NAVADMIN 406/10, Dec. 17, announcing the creation of the Information Systems are eligible to request conversion. Information System Technicians (IT) with Navy Enlisted Classification (NEC as an ITS. Applicants are encouraged to speak with a Navy Career Counselor about the conversion process

  16. Dr. John Zangardi, Ph.D. Deputy Assistant Secretary of the Navy for Command, Control, Communications,

    E-Print Network [OSTI]

    3-11 Dr. John Zangardi, Ph.D. Deputy Assistant Secretary of the Navy for Command, Control, Communications, Computers, Intelligence, Information Operations and Space Assistant Secretary of the Navy (Research, Development & Acquisition) John Zangardi was appointed as Deputy Assistant Secretary of the Navy

  17. Office of the Secretary of the Navy Small and Disadvantaged Business

    E-Print Network [OSTI]

    Office of the Secretary of the Navy Small and Disadvantaged Business Utilization 720 Kennon Street SE Room 207 Washington DC 20374-5015 Phone: 202/685-6485 Fax: 202/685-6865 http://www.hq.navy.mil/sadbu What it takes to successfully market your product to the Department of the Navy TEN STEPS TO SUCCESS

  18. Viscosity of a nucleonic fluid

    E-Print Network [OSTI]

    Aram Z. Mekjian

    2012-03-21

    The viscosity of nucleonic matter is studied both classically and in a quantum mechanical description. The collisions between particles are modeled as hard sphere scattering as a baseline for comparison and as scattering from an attractive square well potential. Properties associated with the unitary limit are developed which are shown to be approximately realized for a system of neutrons. The issue of near perfect fluid behavior of neutron matter is remarked on. Using some results from hard sphere molecular dynamics studies near perfect fluid behavior is discussed further.

  19. EQ6 Calculations for Chemical Degradation of Navy Waste Packages

    SciTech Connect (OSTI)

    S. LeStrange

    1999-11-15

    The Monitored Geologic Repository Waste Package Operations of the Civilian Radioactive Waste Management System Management & Operating Contractor (CRWMS M&O) performed calculations to provide input for disposal of spent nuclear fuel (SNF) from the Navy (Refs. 1 and 2). The Navy SNF has been considered for disposal at the potential Yucca Mountain site. For some waste packages, the containment may breach (Ref. 3), allowing the influx of water. Water in the waste package may moderate neutrons, increasing the likelihood of a criticality event within the waste package. The water may gradually leach the fissile components and neutron absorbers out of the waste package. In addition, the accumulation of silica (SiO{sub 2}) in the waste package over time may further affect the neutronics of the system. This study presents calculations of the long-term geochemical behavior of waste packages containing the Enhanced Design Alternative (EDA) II inner shell, Navy canister, and basket components. The calculations do not include the Navy SNF in the waste package. The specific study objectives were to determine the chemical composition of the water and the quantity of silicon (Si) and other solid corrosion products in the waste package during the first million years after the waste package is breached. The results of this calculation will be used to ensure that the type and amount of criticality control material used in the waste package design will prevent criticality.

  20. Cooperative MPC&A Enhancements at Russian Navy Sites

    SciTech Connect (OSTI)

    Nelson, N N; O'Shell, P; Hendrickson, S; Sukhoruchkin, V; Antipov, S; Melkhov, E; Ponomarev-Stepnoi, N; Yurasov, N

    2001-05-30

    U.S. MPC&A cooperation with the Russian Federation (RF) Navy is based on a Joint Statement signed in 1996 to protect Highly Enriched Uranium (HEU) fresh fuel used for nuclear propulsion. The Russian Federation Navy is the largest owner in Russia of highly enriched uranium, both in the form of fresh nuclear fuel, and in the form of slightly irradiated fuel with a long cooling time after irradiation. As a result of this agreement, projects began at the Northern Fleet Fresh Fuel Storage Facility (Site 49) and Refueling Ship PM-63. Initial projects provided upgrades for RF Navy HEU fresh fuel storage facilities, beginning with a land-based facility near Murmansk and later adding other land-based and ship-based fresh fuel storage facilities. Additional protocols (December 1997, January 1999, and March 2000) significantly expanded cooperation to include all HEU fuel under RF Navy control. To date, it is estimated that tens of metric tons of HEU have been secured - enough to construct hundreds of nuclear devices. It was determined that the cooperation would be coordinated by the Russian Research Center, Kurchatov Institute. This paper describes the history of the Program development, its stages, current status, scale of the work and prospects.

  1. The fireship and its role in the Royal Navy 

    E-Print Network [OSTI]

    Coggeshall, James Lowell

    1997-01-01

    and could wreak havoc like no other vessel. After their use helped the English defeat the Spanish Armada in 1588, fireships became an important element of the Royal Navy and other European fleets and remained so until the Battle of Navarino in 1827...

  2. Viscosity of High Energy Nuclear Fluids

    E-Print Network [OSTI]

    V. Parihar; A. Widom; D. Drosdoff; Y. N. Srivastava

    2007-03-15

    Relativistic high energy heavy ion collision cross sections have been interpreted in terms of almost ideal liquid droplets of nuclear matter. The experimental low viscosity of these nuclear fluids have been of considerable recent quantum chromodynamic interest. The viscosity is here discussed in terms of the string fragmentation models wherein the temperature dependence of the nuclear fluid viscosity obeys the Vogel-Fulcher-Tammann law.

  3. United States Navy Basic Plan Green-One: an analysis of the U.S. Navy's strategic war plan against Mexico 

    E-Print Network [OSTI]

    Schmidt, Steven Jon

    1992-01-01

    UNITED STATES NAVY BASIC PLAN GREEN ? ONE: AN ANALYSIS OF THE U. S. NAVY'S STRATEGIC WAR PLAN AGAINST MEXICO A Thesis by Steven Jon Schmidt Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment... of the requirements for the degree of MASTER OF ARTS May 1992 Major Subject: History UNITED STATES NAVY BASIC PLAN GREEN-ONE: AN ANALYSIS OF THE U. S. NAVY'S STRATEGIC WAR PLAN Ai AINST MEEICO A Theseus by Steven Schmj. dt Apprcved as t. o style and content...

  4. Viscosity Measurement G.E. Leblanc

    E-Print Network [OSTI]

    Kostic, Milivoje M.

    30 Viscosity Measurement G.E. Leblanc McMaster University R.A. Secco The University of Western and Non-Newtonian Fluids l Dimensions and Units of Viscosity l Viscometer Types l Capillary M. Kostic must be supplied (1) to create viscous flow units by breaking bonds between atoms and molecules, and (2

  5. "The Fourth Dimension of Naval Tactics": The U.S. Navy and Public Relations, 1919-1939 

    E-Print Network [OSTI]

    Wadle, Ryan David

    2012-07-16

    operated. Numerous new personal paper collections are analyzed, including those of Navy League leaders William Howard Gardiner and Walter Bruce Howe that shed much light on the organi?ation?s operations. This project also explores the writings... goals, such as increasing the size and power of naval aviation or filling the Navy?s manpower needs. The Navy?s diffuse organi?ational structure allowed Captain Dudley W. Knox and Rear Admiral William Moffett in their capacities as officer in charge...

  6. Viscosity correlations for binary supercritical fluids

    SciTech Connect (OSTI)

    Tilly, K.D.; Foster, N.R.; Macnaughton, S.J.; Tomasko, D.L. . School of Chemical Engineering and Industrial Chemistry)

    1994-03-01

    The viscosities and densities of supercritical mixtures of methanol, ethanol, n-propanol, isopropanol, n-pentane, n-hexane, n-heptane, and acetone in carbon dioxide, at concentrations between 1 and 5 mol %, were determined using a falling weight viscometer at pressures up to 240 bar and at temperatures between 313 and 328 K. The effects of pressure, temperature, cosolvent concentration, and the physical properties of the cosolvents on the mixture viscosity and density were examined. The viscosities and the densities of the mixtures were found to increase with the size, polarity, and concentration of the cosolvent molecule. The mixture viscosity was correlated with several empirical dense gas viscosity correlations. The best correlation was the Ely and Hanley technique modified with a density-dependent noncorrespondence factor. The Peng-Robinson equation of state was used to correlate the mixture densities.

  7. SPE 159255-PP Rock Classification from Conventional Well Logs in Hydrocarbon-Bearing

    E-Print Network [OSTI]

    Torres-Verdín, Carlos

    SPE 159255-PP Rock Classification from Conventional Well Logs in Hydrocarbon-Bearing Shale Andrew C typing method for application in hydrocarbon-bearing shale (specifically source rock) reservoirs using-hoc correlations where the interpretation becomes a core matching exercise. Scale effects on measurements

  8. spe451-00 1st pgs page v Introduction: Managing Rivers with Broad Historical Changes

    E-Print Network [OSTI]

    James, L. Allan

    spe451-00 1st pgs page v v Introduction: Managing Rivers with Broad Historical Changes and Human global environmental change, water resources, river restoration, and sustainable river management of studies and inter- pretations of river-channel change that reflect modern viewpoints of river management

  9. SPE 159835-PP Event-driven Information Integration for the Digital Oilfield

    E-Print Network [OSTI]

    Hwang, Kai

    SPE 159835-PP Event-driven Information Integration for the Digital Oilfield Om Prasad Patri propose a semantic complex event processing architecture for the digital oilfield that facilitates for the digital oilfield [9] and the E&P business [8] are well recognized. Various integrated operations

  10. The Marine Mammal Protection Act (MMPA) prohibits the take of all marine mammal spe-

    E-Print Network [OSTI]

    The Marine Mammal Protection Act (MMPA) prohibits the take of all marine mammal spe- cies in U, or kill any marine mammal." HarassmentHarassment is defined in the MMPA as "any act of pursuit, torment, or annoyance which has the potential to injure a marine mammal or marine mammal stock in the wild; or has

  11. SPE-167897-MS Pattern Recognition and Data-Driven Analytics for Fast and Accurate

    E-Print Network [OSTI]

    Mohaghegh, Shahab

    , Society of Petroleum Engineers This paper was prepared for presentation at the SPE Intelligent Energy University; R. Gaskari, Intelligent Solutions Inc.; G.S. Bromhal, US Department of Energy Copyright 2014 by the author(s). Contents of the paper have not been reviewed by the Society of Petroleum Engineers

  12. Russian Navy fresh fuel MPC and A training and regulations

    SciTech Connect (OSTI)

    Forehand, H.M. [Los Alamos National Lab., NM (United States); Rexroth, P. [Sandia National Labs., Albuquerque, NM (United States); Dove, A. [Dept. of Energy, Washington, DC (United States); Shmelev, V.; Sukhoruchkin, V.; Roumiantsev, A. [Kurchatov Inst. Russian Research Center (Russian Federation)

    1998-07-01

    The Regulations and Training Projects are part of the US-Russian Federation Materials Protection, Control, and Accounting (MPC&A) cooperative program to protect Russian Navy Fuels. This paper describes the general status of the projects, progress achieved to date, and long-term plans for further work in producing regulatory documents and training to support this ewffort. The regulatory development will result in a document set that will include general requirements and rules for the Russian Navy MPC&A as well as specific instructions for operation and maintenance of each facility. The goals of the training program are to instill in managers a culture of sustainable commitment to MPC&A through the understanding of its principles and philosophies. In addition, the training program will help ensure that upgrades are effectively utilized and maintained by training operators and maintenance personnel in MPC&A principles as well in as the detailed operations of the systems.

  13. UESC Case Study: Philadelphia Navy Yard | 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 RankADVANCEDInstallers/ContractorsPhotovoltaicsStateofEnergy Fuel Cell-IndiaCase Study: Philadelphia Navy

  14. US Navy Tactical Fuels From Renewable Sources Program | Department of

    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 RankADVANCEDInstallers/ContractorsPhotovoltaicsStateofEnergyof EnergyEnergy US Navy Tactical

  15. Russian Navy Fresh Fuel MPC and A Training

    SciTech Connect (OSTI)

    Forehand, Harry M.; O'Shell, Parker; Opanassiouk, Yuri R.; Rexroth, Paul E.; Shmelev, Vladimir; Sukhoruchkin, Vladimir K.

    1999-07-06

    The goal of the Russian Navy Fuels Program is to incorporate nuclear fuel that is in the custody of the Russian Navy into a materials protection, control and accounting program. In addition to applying MPC and A upgrades to existing facilities, a program is underway to train site personnel in MPC and A activities. The goal is to assure that the upgraded facilities are managed, operated and maintained in an effective, sustainable manner. Training includes both the conceptual and necessary operational aspects of the systems and equipment. The project began with a Needs Assessment to identify priorities and objectives of required training. This led to the creation of a series of classes developed by Kurchatov Institute. One course was developed to allow attendees to get a general understanding of goals and objectives of nuclear MPC and A systems in the context of the Russian Navy. A follow-on course provided the detailed skills necessary for the performance of specialized duties. Parallel sessions with hands-on exercises provided the specific training needed for different personnel requirements. The courses were presented at KI facilities in Moscow. This paper reviews the work to date and future plans for this program.

  16. The Bulk Viscosity of a Pion Gas

    E-Print Network [OSTI]

    Egang Lu; Guy D. Moore

    2011-01-31

    We compute the bulk viscosity of a gas of pions at temperatures below the QCD crossover temperature, for the physical value of pion mass, to lowest order in chiral perturbation theory. Bulk viscosity is controlled by number-changing processes which become exponentially slow at low temperatures when the pions become exponentially dilute, leading to an exponentially large bulk viscosity zeta ~ (F_0^8/m_\\pi^5) exp(2m_\\pi/T), where F_0 = 93 MeV is the pion decay constant.

  17. U.S. Navy Marine Diesel Engines and the Environment - Part 1...

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

    Presentation: NAVSEA 2002deerosborne1.pdf More Documents & Publications Philadelphia Navy Yard: UESC Project with Philadelphia Gas Works 2013 Federal Energy and Water...

  18. U.S. Navy Marine Diesel Engines and the Environment - Part 3...

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

    3 U.S. Navy Marine Diesel Engines and the Environment - Part 3 2002 DEER Conference Presentation: NAVSEA 2002deerosborne3.pdf More Documents & Publications Investigation of...

  19. MPS213 - A Non-Thermal Plasma Application for the Royal Navy...

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

    Plasma Application for the Royal Navy - Part 3 2002 DEER Conference Presentation: Marine Propulsion Systems - Integrated Project Team 2002deerhughes3.pdf More Documents &...

  20. MPS213 - A Non-Thermal Plasma Application for the Royal Navy...

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

    Plasma Application for the Royal Navy - Part 1 2002 DEER Conference Presentation: Marine Propulsion Systems - Integrated Project Team 2002deerhughes1.pdf More Documents &...

  1. MPS213 - A Non-Thermal Plasma Application for the Royal Navy...

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

    Plasma Application for the Royal Navy - Part 4 2002 DEER Conference Presentation: Marine Propulsion Systems - Integrated Project Team 2002deerhughes4.pdf More Documents &...

  2. Tsunamis, Viscosity and the HBT Puzzle

    E-Print Network [OSTI]

    Scott Pratt

    2007-11-13

    The equation of state and bulk and shear viscosities are shown to be able to affect the transverse dynamics of a central heavy ion collision. The net entropy, along with the femtoscopic radii are shown to be affected at the 10-20% level by both shear and bulk viscosity. The degree to which these effects help build a tsunami-like pulse is also discussed.

  3. High-Temperature Viscosity Of Commercial Glasses

    SciTech Connect (OSTI)

    Hrma, Pavel R.; See, Clem A.; Lam, Oanh P.; Minister, Kevin B.

    2005-01-01

    Viscosity was measured for six types of commercial glasses: low-expansion-borosilicate glasses, E glasses, fiberglass wool glasses, TV panel glasses, container glasses, and float glasses. Viscosity data were obtained with rotating spindle viscometers within the temperature range between 900°C and 1550°C; the viscosity varied from 1 Pa?s to 750 Pa?s. Arrhenius coefficients were calculated for individual glasses and linear models were applied to relate them to the mass fractions of 11 major components (SiO2, CaO, Na2O, Al2O3, B2O3, BaO, SrO, K2O, MgO, PbO, and ZrO2) and 12 minor components (Fe2O3, ZnO, Li2O, TiO2, CeO2, F, Sb2O3, Cr2O3, As2O3, MnO2, SO3, and Co3O4). The models are recommended for glasses containing 42 to 84 mass% SiO2 to estimate viscosities or temperatures at a constant viscosity for melts within both the temperature range from 1100°C to 1550°C and viscosity range from 10 to 400 Pa?s.

  4. Simulation of the SPE-4 small-break loss-of-coolant accident using RELAP5/MOD 3.1 

    E-Print Network [OSTI]

    Cebull, Peter Patrick

    1994-01-01

    nuclear power plant as part of the International Atomic Energy Agency's Fourth Standard Problem Exercise (SPE-4). One distinguishing characteristic of this type of power plant 'LS the horizontal steam generator. Nineteen countries participated...

  5. DOE - Office of Legacy Management -- Navy Ammunition Depot - NJ 15

    Office of Legacy Management (LM)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of NaturalDukeWakefield Municipal Gas &SCE-SessionsSouth Dakota Edgemont,Manufacturing - OHSellingAcmePetroleum36Navy

  6. Nuclear Navy United States Atomic Energy Commission Historical Advisory

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustmentsShirleyEnergy AEnergy Managing853926 News enDepartment of Energy101Navy United States

  7. DEPARTMENT OF THE NAVY ENERGY PROGRAM | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:FinancingPetroleum Based| Department of EnergyCyrus Wadia About UsAwardDEPARTMENT OF THE NAVY

  8. Navy Catching Waves in Hawaii | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustmentsShirleyEnergyTher i nAand DOEDepartment ofProgramImports by Pipeline intosome ofNationalNavy 1This

  9. Nuclear Navy Turns 50 | National Nuclear Security Administration

    National Nuclear Security Administration (NNSA)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of NaturalDukeWakefield Municipal GasAdministration Medal of HonorPoster Session |SecurityNSDDfor 5th NEWSNoticeNavy Turns

  10. Cylindrical Equidis LAMONT (LDEO) WOODS HOLE O.I. NOAA U.HAWAII SOEST US NAVY

    E-Print Network [OSTI]

    HOLE O.I. NOAA U.HAWAII SOEST US NAVY SCRIPPS INST.OC U RHODE ISLAND RUSSIA US COAST GUARD GERMANY US NOAA 330 415326 415326 0 0 0 0 1932257 U.HAWAII SOEST 1 5873 5319 3992 5387 0 0 69927 US NAVY 3 3486

  11. A presentation of the U.S. Navy's Wave Energy Test Site (WETS)

    E-Print Network [OSTI]

    Frandsen, Jannette B.

    A presentation of the U.S. Navy's Wave Energy Test Site (WETS) Patrick Cross Senior Project Specialist Hawaii Natural Energy Institute School of Ocean and Earth Science and Technology University of Hawaii Abstract The U.S. Navy's Wave Energy Test Site (WETS) in Hawaii is now fully operational

  12. Utilization of refuse derived fuels by the United States Navy

    SciTech Connect (OSTI)

    Lehr, D.L.

    1983-07-01

    The Resource Conservation and Recovery Act and the Safe Drinking Water Act are forcing those in charge of landfills to adhere to more stringent operating standards. This, along with the growing scarcity of landfill availability, makes the use of landfills less desirable for solid waste disposal. As such, new disposal methods that are environmentally safe and economically practical must be found. One alternative, that is not really new but which has gained renewed interest, is incineration. The Resource Conservation and Recovery Act also requires that government agencies should direct their installations to recover as many resources as possible. Therefore if incineration is to be implemented, heat recovery should be incorporated into the system. There are several processes available to convert raw refuse into a fuel for use in a heat recovery system. Refuse derived fuels (RDF) can be in the form of raw refuse, densified refuse, powdered refuse, gas, or pyrolytic oil. The only form of RDF that is economically feasible for systems designed to process less than 200 TPD (tons per day) is raw refuse. Most Navy bases generate far less than 200 TPD of solid waste and therefore the Navy has focused most of its attention on modular heat recovery incinerator (HRI) systems that utilize raw refuse as fuel.

  13. JSHSENSURING A FUTURE FOR SCIENCE The Junior Science and Humanities Symposium, sponsored by the US Army/Navy/Air

    E-Print Network [OSTI]

    Kelly, John J.

    Army/Navy/Air Force and Loyola University Chicago is introducing an e-mentoring program for students

  14. Dual-fuel engine conversions evaluated by U.S. Navy

    SciTech Connect (OSTI)

    NONE

    1996-10-01

    In seeking ways to reduce emissions from two-stroke locomotive type engines, the Navy has evaluated dual-fuel conversions operating on a compression ignition cycle, using up to 94% natural gas and 6% diesel pilot fuel. The Navy has conducted an evaluation and test program under the direction of Dr. Normnn L. Helgeson, at the Naval Facilities Engineering Service Center in Port Hueneme, California. Of the Navy`s many diesel engines, those installed in its MUSE (mobile utility support equipment) units for temporary electrical power were the first Navy off-road engines to be affected by emissions regulations. Most of the units are powered by the EMD 645 engine, and when burning diesel fuel do not meet the emission requirements in many areas of the country. This paper discusses the changes and results of the conversion and shakedown tests.

  15. Treatment technologies for hazardous ashes generated from possible incineration of navy waste. Technical note

    SciTech Connect (OSTI)

    Torres, T.

    1990-10-01

    The Navy recognizes that thermal treatment of Navy hazardous wastes (HW) should, under the terms of the Resource Conservation and Recovery Act of 1976, be avoided. Combustion waste disposal may nonetheless become unavoidable in certain cases, even after all possible process enhancements that avoid HW production are implemented. Even then, some toxic constituents that may be present in the waste will not be destroyed by incineration and will persist in the ash residue produced by incineration. Such incinerator ashes will have to be disposed of in HW landfills. The Navy is thus evaluating methods of treatment of such ash to remove or immobilize the toxic constituents that persist following incineration in order to render the waste treatment residue nonhazardous. Appropriate technology identified in this work can be applied to ash produced by HW combuster operated by the Navy, if any, or be required for ash produced by commercial generators handling Navy HWs.

  16. Like this post? Subscribe to our RSS feed and stay up to date. Navy Develops Battery that Runs on Mud

    E-Print Network [OSTI]

    Lovley, Derek

    Planetsave Like this post? Subscribe to our RSS feed and stay up to date. Navy Develops Battery that Runs on Mud (http://planetsave.com/blog/2010/04/20/navy-develops-battery-that-runs-on- mud/) (http by Joshua S Hill Published on April 20th, 2010 in Energy & Fuel 1 Comment 5/4/2010 Navy Develops Battery

  17. Communication POC: Linda Dent-Mitchell 202-685-6181 Linda.dent-mitchell@navy.mil October 16, 2011

    E-Print Network [OSTI]

    OCHR NEWS Communication POC: Linda Dent-Mitchell 202-685-6181 Linda.dent-mitchell@navy.mil October careers with the Department of the Navy (DON). "Civilian careers provide opportunities to tackle;OCHR NEWS Communication POC: Linda Dent-Mitchell 202-685-6181 Linda.dent-mitchell@navy.mil October 16

  18. Shear Viscosity of a Hot Pion Gas

    E-Print Network [OSTI]

    Robert Lang; Norbert Kaiser; Wolfram Weise

    2012-09-04

    The shear viscosity of an interacting pion gas is studied using the Kubo formalism as a microscopic description of thermal systems close to global equilibrium. We implement the skeleton expansion in order to approximate the retarded correlator of the viscous part of the energy-momentum tensor. After exploring this in $g\\phi^4$ theory we show how the skeleton expansion can be consistently applied to pions in chiral perturbation theory. The shear viscosity $\\eta$ is determined by the spectral width, or equivalently, the mean free path of pions in the heat bath. We derive a new analytical result for the mean free path which is well-conditioned for numerical evaluation and discuss the temperature and pion-mass dependence of the mean free path and the shear viscosity. The ratio $\\eta/s$ of the interacting pion gas exceeds the lower bound $1/4\\pi$ from AdS/CFT correspondence.

  19. Energy-momentum tensor correlators and viscosity

    E-Print Network [OSTI]

    Harvey B. Meyer

    2008-09-30

    Collective flow has been observed in heavy ion collisions, with a large anisotropic component, and ideal hydrodynamic calculations had significant successful in describing the distribution of produced particles at the RHIC experiments. In order to account for this near ideal fluid behavior, the shear and bulk viscosity of the quark gluon plasma (QGP) must be computed from first principles in a regime where the QGP is not weakly coupled. In this talk I describe recent progress in computing energy-momentum tensor correlators on the lattice from which the viscosities can be extracted via Kubo formulas. I also show how to cumulate information from several channels, including at non-vanishing spatial momentum, in order to best constrain the viscosities. These methods should soon yield predictions at the higher temperatures that will be explored at the LHC experiments.

  20. Polyfunctional dispersants for controlling viscosity of phyllosilicates

    DOE Patents [OSTI]

    Chaiko, David J.

    2006-07-25

    This invention provides phyllosilicates and polyfunctional dispersants which can be manipulated to selectively control the viscosity of phyllosilicate slurries. The polyfunctional dispersants used in the present invention, which include at least three functional groups, increase the dispersion and exfoliation of phyllosilicates in polymers and, when used in conjunction with phyllosilicate slurries, significantly reduce the viscosity of slurries having high concentrations of phyllosilicates. The functional groups of the polyfunctional dispersants are capable of associating with multivalent metal cations and low molecular weight organic polymers, which can be manipulated to substantially increase or decrease the viscosity of the slurry in a concentration dependent manner. The polyfunctional dispersants of the present invention can also impart desirable properties on the phyllosilicate dispersions including corrosion inhibition and enhanced exfoliation of the phyllosilicate platelets.

  1. Thermal relics in cosmology with bulk viscosity

    E-Print Network [OSTI]

    A. Iorio; G. Lambiase

    2014-11-28

    In this paper we discuss some consequences of cosmological models in which the primordial cosmic matter is described by a relativistic imperfect fluid. The latter takes into account the dissipative effects (bulk viscosity) arising from different cooling rates of the fluid components in the expanding Universe. We discuss, in particular, the effects of the bulk viscosity on Big Bang Nucleosynthesis and on the thermal relic abundance of particles, looking at recent results of PAMELA experiment. The latter has determined an anomalous excess of positron events, that cannot be explained by the conventional cosmology and particle physics.

  2. A novel polyamine allosteric site of SpeG from Vibrio cholerae is revealed by Its dodecameric structure

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

    Filippova, Ekaterina V.; Kuhn, Misty L.; Osipiuk, Jerzy; Kiryukhina, Olga; Joachimiak, Andrzej; Ballicora, Miguel A.; Anderson, Wayne F.

    2015-03-01

    Spermidine N-acetyltransferase, encoded by the gene speG, catalyzes the initial step in the degradation of polyamines and is a critical enzyme for determining the polyamine concentrations in bacteria. In Escherichia coli, studies have shown that SpeG is the enzyme responsible for acetylating spermidine under stress conditions and for preventing spermidine toxicity. Not all bacteria contain speG, and many bacterial pathogens have developed strategies to either acquire or silence it for pathogenesis. Here, we present thorough kinetic analyses combined with structural characterization of the VCA0947 SpeG enzyme from the important human pathogen Vibrio cholerae. Our studies revealed the unexpected presence ofmore »a previously unknown allosteric site and an unusual dodecameric structure for a member of the Gcn5-related N-acetyltransferase superfamily. We show that SpeG forms dodecamers in solution and in crystals and describe its three-dimensional structure in several ligand-free and liganded structures. Importantly, these structural data define the first view of a polyamine bound in an allosteric site of an N-acetyltransferase. Kinetic characterization of SpeG from V. cholerae showed that it acetylates spermidine and spermine. The behavior of this enzyme is complex and exhibits sigmoidal curves and substrate inhibition. We performed a detailed non-linear regression kinetic analysis to simultaneously fit families of substrate saturation curves to uncover a simple kinetic mechanism that explains the apparent complexity of this enzyme. Our results provide a fundamental understanding of the bacterial SpeG enzyme, which will be key toward understanding the regulation of polyamine levels in bacteria during pathogenesis.« less

  3. Navy precision optical interferometer measurements of 10 stellar oscillators

    SciTech Connect (OSTI)

    Baines, Ellyn K.; Armstrong, J. Thomas; Schmitt, Henrique R. [Remote Sensing Division, Naval Research Laboratory, 4555 Overlook Avenue SW, Washington, DC 20375 (United States); Benson, James A.; Zavala, R. T. [U.S. Naval Observatory, Flagstaff Station, AZ 86001 (United States); Van Belle, Gerard T., E-mail: ellyn.baines@nrl.navy.mil [Lowell Observatory, Flagstaff, AZ 86001 (United States)

    2014-02-01

    Using the Navy Precision Optical Interferometer, we measured the angular diameters of 10 stars that have previously measured solar-like oscillations. Our sample covered a range of evolutionary stages but focused on evolved subgiant and giant stars. We combined our angular diameters with Hipparcos parallaxes to determine the stars' physical radii, and used photometry from the literature to calculate their bolometric fluxes, luminosities, and effective temperatures. We then used our results to test the scaling relations used by asteroseismology groups to calculate radii and found good agreement between the radii measured here and the radii predicted by stellar oscillation studies. The precision of the relations is not as well constrained for giant stars as it is for less evolved stars.

  4. Computation of Shear Viscosity: A Systems Approach

    E-Print Network [OSTI]

    Wen, John Ting-Yung

    Institute Troy, NY 12180. Emails: {hurstj,wenj}@rpi.edu Abstract-- Macroscopic material transport properties. Linearizing this map about an equilibrated trajectory results in a linear time varying system. By freezing]. In particular, macroscopic transport properties such as viscosity, diffusivity, conductivity, etc., may

  5. Geologic Assessment of the Damage Zone from the Second Test at Source Physics Experiment-Nevada (SPE-N)

    SciTech Connect (OSTI)

    Townsend, M. J.; Huckins-Gang, H. E.; Prothro, L. B.; Reed, D. N.

    2012-12-01

    The National Center for Nuclear Security, established by the U.S. Department of Energy, National Nuclear Security Administration (NNSA), is conducting a series of explosive tests at the Nevada National Security Site that are designed to increase the understanding of certain basic physical phenomena associated with underground explosions. These tests will aid in developing technologies that might be used to detect underground nuclear explosions in support of verification activities for the Comprehensive Nuclear-Test-Ban Treaty. The initial project is a series of explosive tests, known collectively as the Source Physics Experiment-Nevada (SPE-N), being conducted in granitic rocks. The SPE-N test series is designed to study the generation and propagation of seismic waves. The results will help advance the seismic monitoring capability of the United States by improving the predictive capability of physics-based modeling of explosive phenomena. The first SPE N (SPE-N-1) test was conducted in May 2011, using 100 kg of explosives at the depth of 54.9 m in the U 15n source hole. SPE-N-2 was conducted in October 2011, using 1,000 kg of explosives at the depth of 45.7 m in the same source hole. The SPE-N-3 test was conducted in the same source hole in July 2012, using the same amount and type of explosive as for SPE-N-2, and at the same depth as SPE-N-2, within the damage zone created by the SPE-N-2 explosion to investigate damage effects on seismic wave propagation. Following the SPE-N-2 shot and prior to the SPE-N-3 shot, the core hole U-15n#10 was drilled at an angle from the surface to intercept the SPE-N-2 shot point location to obtain information necessary to characterize the damage zone. The objective was to determine the position of the damage zone near the shot point, at least on the northeast, where the core hole penetrated it, and obtain information on the properties of the damaged medium. Geologic characterization of the post-SPE-N-2 core hole included geophysical logging, a directional survey, and geologic description of the core to document visual evidence of damage. Selected core samples were provided to Sandia National Laboratories (SNL) for measurement of physical and mechanical properties. A video was also run in the source hole after it was cleaned out. A significant natural fault zone was encountered in the angle core hole between 5.7 and 7.5 m from the shot point. However, several of the fractures observed in the core hole are interpreted as having been caused by the explosion. The fractures are characterized by a “fresh,” mechanically broken look, with uncoated and very irregular surfaces. They tend to terminate against natural fractures and have orientations that differ from the previously defined natural fracture sets; they are common starting at about 5.4 m from the shot point. Within about 3.3 m of the shot point to the end of the recovered core at 1.6 m from the shot point, some of the core samples are softer and lighter in color, but do not appear to be weathered. It is thought this could be indicative of the presence of distributed microfracturing.

  6. Development of an energy-use estimation methodology for the revised Navy Manual MO-303

    SciTech Connect (OSTI)

    Richman, E.E.; Keller, J.M.; Wood, A.G.; Dittmer, A.L.

    1995-01-01

    The U.S. Navy commissioned Pacific Northwest Laboratory (PNL) to revise and/or update the Navy Utilities Targets Manual, NAVFAC MO-303 (U.S. Navy 1972b). The purpose of the project was to produce a current, applicable, and easy-to-use version of the manual for use by energy and facility engineers and staff at all Navy Public Works Centers (PWCs), Public Works Departments (PWDs), Engineering Field Divisions (EFDs), and other related organizations. The revision of the MO-303 manual involved developing a methodology for estimating energy consumption in buildings and ships. This methodology can account for, and equitably allocate, energy consumption within Navy installations. The analyses used to develop this methodology included developing end-use intensities (EUIs) from a vast collection of Navy base metering and billing data. A statistical analysis of the metering data, weather data, and building energy-use characteristics was used to develop appropriate EUI values for use at all Navy bases. A complete Navy base energy reconciliation process was also created for use in allocating all known energy consumption. Initial attempts to use total Navy base consumption values did not produce usable results. A parallel effort using individual building consumption data provided an estimating method that incorporated weather effects. This method produced a set of building EUI values and weather adjustments for use in estimating building energy use. A method of reconciling total site energy consumption was developed based on a {open_quotes}zero-sum{close_quotes} principle. This method provides a way to account for all energy use and apportion part or all of it to buildings and other energy uses when actual consumption is not known. The entire text of the manual was also revised to present a more easily read understood and usable document.

  7. Evaluation of technology transferring: The experiences of the first Navy Domestic Technology Transfair. Final report

    SciTech Connect (OSTI)

    Not Available

    1989-12-31

    In August 1989 the Office of the Chief of Naval Research and the American Defense Preparedness Association conducted the first Navy Domestic Technology Transfair. The objective of the Transfair was to expose the US Navy`s years of solid experience across a broad span of technology to organizations outside of the Navy. It was an opportunity for private industry to capitalize on the Navy developed technology and this opening for industry was the primary focus of the Transfair. The event provided a unique forum to meet leading Navy scientific and engineering innovators face-to-face. Information was available concerning licensing of naval technology that was for sale to the private sector. Further, discussions covered opportunities for new cooperative research and development agreements with Navy laboratories and R&D activities. These agreements were authorized under the Federal Technology Transfer Act of 1986. The Transfair program was conducted in such a manner as to allow each Navy inventor, either scientist or engineer, to present a system, piece of hardware, or licensable concept in a formal paper presentation. Then, the Navy inventors were available in two, two-hour periods in which individual discussions were conducted, with attendees pursuing specific venues of cooperative agreements as desired. This report provides specifics concerning the technologies that were made available for transfer to the private sector during the Transfair. The Transfair concept sought to add special emphasis to the opening that the 1988 Technology Transfer Act brought to the marketplace. The experience was a step in the education of the possibilities for cooperation between the government and the private sector to share technology. Of additional significance is the economic enhancement for business expansion with the application of the technology to markets beyond defense.

  8. Dual-Fuel Combustion Turbine Provides Reliable Power to U.S. Navy Submarine Base New London in Groton, Connecticut

    SciTech Connect (OSTI)

    Halverson, Mark A.(BATTELLE (PACIFIC NW LAB)) [BATTELLE (PACIFIC NW LAB)

    2002-01-01

    In keeping with a long-standing tradition of running Base utilities as a business, the U.S. Navy Submarine Base New London installed a dual-fuel combustion turbine with a heat recovery boiler. The 5-megawatt (MW) gas- and oil-fired combustion turbine sits within the Lower Base area, just off the shores of the Thames River. The U.S. Navy owns, operates, and maintains the combined heat and power (CHP) plant, which provides power to the Navy?s nuclear submarines when they are in port and to the Navy?s training facilities at the Submarine Base. Heat recovered from the turbine is used to produce steam for use in Base housing, medical facilities, and laundries. In FY00, the Navy estimates that it will save over $500,000 per year as a result of the combined heat and power unit.

  9. Assessment of durability of carbon/epoxy composite materials after exposure to elevated temperatures and immersion in seawater for navy vessel applications

    E-Print Network [OSTI]

    Hong, SoonKook

    2010-01-01

    French Navy. In addition, periscope fairings have been builttolerances required of the periscope bearing system. The

  10. Synthesis and characterization of molecular rotors as viscosity sensors and beta amyloid binding agents

    E-Print Network [OSTI]

    Sutharsan, Jeyanthy

    2009-01-01

    Synthesis and Evaluation as Viscosity Sensors IntroductionSynthesis and Evaluation as Viscosity Sensors14and evaluation of these compounds as viscosity sensors. The

  11. Test Method Extensional viscosity of a thermotropic liquid crystalline polymer

    E-Print Network [OSTI]

    Feng, James J.

    Test Method Extensional viscosity of a thermotropic liquid crystalline polymer measured by thread the extensional viscosity of thermotropic liquid crystalline polymer: disintegration of liquid crystalline polymer liquid crystalline polymer (TLCP) 1. Introduction The structure and orientation of thermotropic liquid

  12. Plasma Viscosity with Mass Transport in Spherical ICF Implosion Simulations

    E-Print Network [OSTI]

    Vold, Erik L; Ortega, Mario I; Moll, Ryan; Fenn, Daniel; Molvig, Kim

    2015-01-01

    The effects of viscosity and small-scale atomic-level mixing on plasmas in inertial confinement fusion (ICF) currently represent challenges in ICF research. Many current ICF hydrodynamic codes ignore the effects of viscosity though recent research indicates viscosity and mixing by classical transport processes may have a substantial impact on implosion dynamics. We have implemented a Lagrange hydrodynamic code in one-dimensional spherical geometry with plasma viscosity and mass transport and including a three temperature model for ions, electrons, and radiation treated in a gray radiation diffusion approximation. The code is used to study ICF implosion differences with and without plasma viscosity and to determine the impacts of viscosity on temperature histories and neutron yield. It was found that plasma viscosity has substantial impacts on ICF shock dynamics characterized by shock burn timing, maximum burn temperatures, convergence ratio, and time history of neutron production rates. Plasma viscosity reduc...

  13. Viscosities of natural gases at high pressures and high temperatures 

    E-Print Network [OSTI]

    Viswanathan, Anup

    2007-09-17

    Estimation of viscosities of naturally occurring petroleum gases provides the information needed to accurately work out reservoir-engineering problems. Existing models for viscosity prediction are limited by data, especially at high pressures...

  14. Relation between viscosity and stability for heavy oil emulsions 

    E-Print Network [OSTI]

    Ye, Sherry Qianwen

    1998-01-01

    The relation between viscosity and stability has been hics. found by investigating the effect of surfactant concentration on emulsion stability. Based on the Bingham plastic model for viscosity as a function of shear rate, ...

  15. The politics of innovative military doctrine : the U.S. Navy and fleet ballistic missiles

    E-Print Network [OSTI]

    Cote, Owen R., 1960-

    1996-01-01

    The Polaris and Trident II SLBM weapon systems were developed by the U.S. Navy during periods of major strategic nuclear modernization, when national leaders were concerned about the vulnerability of U.S. Air Force land ...

  16. MPS213 - A Non-Thermal Plasma Application for the Royal Navy...

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

    2 MPS213 - A Non-Thermal Plasma Application for the Royal Navy - Part 2 2002deerhughes2.pdf More Documents & Publications MPS213 - A Non-Thermal Plasma Application for the Royal...

  17. Maintenance practices for emergency diesel generator engines onboard United States Navy Los Angeles class nuclear submarines

    E-Print Network [OSTI]

    Hawks, Matthew Arthur

    2006-01-01

    The United States Navy has recognized the rising age of its nuclear reactors. With this increasing age comes increasing importance of backup generators. In addition to the need for decay heat removal common to all (naval ...

  18. Evaluation of non-intrusive monitoring for condition based maintenance applications on US Navy propulsion plants

    E-Print Network [OSTI]

    Greene, William C. (William Calvin)

    2005-01-01

    The thesis explores the use of the Non-intrusive Load Monitor (NILM) in Condition Based Maintenance (CBM) applications on US Navy ships as part of the Office of Naval Research Electric Ship Integration (ESI) Initiative. ...

  19. MHK Projects/US Navy Wave Energy Technology WET Program at Marine...

    Open Energy Info (EERE)

    MHK ProjectsUS Navy Wave Energy Technology WET Program at Marine Corps Base Hawaii MCBH < MHK Projects Jump to: navigation, search << Return to the MHK database homepage Loading...

  20. U.S. Navy Marine Diesel Engines and the Environment - Part 2...

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

    2 U.S. Navy Marine Diesel Engines and the Environment - Part 2 2002 DEER Conference Presentation: NAVSEA 2002deerosborne2.pdf More Documents & Publications MPS213 - A Non-Thermal...

  1. Cost prediction via quantitative analysis of complexity in U.S. Navy shipbuilding

    E-Print Network [OSTI]

    Dobson, Aaron T. (Aaron Travis)

    2014-01-01

    As the sophistication and technology of ships increases, U.S. Navy shipbuilding must be an effective and cost-efficient acquirer of technology-dense one-of-a-kind ships all while meeting significant cost and schedule ...

  2. Shear viscosity, cavitation and hydrodynamics at LHC

    E-Print Network [OSTI]

    Bhatt, Jitesh R; Sreekanth, V

    2011-01-01

    We study evolution of quark-gluon matter in the ultrarelativistic heavy-ion collisions within the frame work of relativistic second-order viscous hydrodynamics. In particular, by using the various prescriptions of a temperature-dependent shear viscosity to the entropy ratio, we show that the hydrodynamic description of the relativistic fluid become invalid due to the phenomenon of cavitation. For most of the initial conditions relevant for LHC, the cavitation sets in very early during the evolution of the hydrodynamics in time $\\lesssim 2 $fm/c. The cavitation in this case is entirely driven by the large values of shear viscosity. Moreover we also demonstrate that the conformal term used in equations of the relativistic dissipative hydrodynamic can influence the cavitation time.

  3. Shear viscosity, cavitation and hydrodynamics at LHC

    E-Print Network [OSTI]

    Jitesh R. Bhatt; Hiranmaya Mishra; V. Sreekanth

    2011-09-28

    We study evolution of quark-gluon matter in the ultrarelativistic heavy-ion collisions within the frame work of relativistic second-order viscous hydrodynamics. In particular, by using the various prescriptions of a temperature-dependent shear viscosity to the entropy ratio, we show that the hydrodynamic description of the relativistic fluid become invalid due to the phenomenon of cavitation. For most of the initial conditions relevant for LHC, the cavitation sets in very early during the evolution of the hydrodynamics in time $\\lesssim 2 $fm/c. The cavitation in this case is entirely driven by the large values of shear viscosity. Moreover we also demonstrate that the conformal term used in equations of the relativistic dissipative hydrodynamic can influence the cavitation time.

  4. RELAP-7 Numerical Stabilization: Entropy Viscosity Method

    SciTech Connect (OSTI)

    R. A. Berry; M. O. Delchini; J. Ragusa

    2014-06-01

    The RELAP-7 code is the next generation nuclear reactor system safety analysis code being developed at the Idaho National Laboratory (INL). The code is based on the INL's modern scientific software development framework, MOOSE (Multi-Physics Object Oriented Simulation Environment). The overall design goal of RELAP-7 is to take advantage of the previous thirty years of advancements in computer architecture, software design, numerical integration methods, and physical models. The end result will be a reactor systems analysis capability that retains and improves upon RELAP5's capability and extends the analysis capability for all reactor system simulation scenarios. RELAP-7 utilizes a single phase and a novel seven-equation two-phase flow models as described in the RELAP-7 Theory Manual (INL/EXT-14-31366). The basic equation systems are hyperbolic, which generally require some type of stabilization (or artificial viscosity) to capture nonlinear discontinuities and to suppress advection-caused oscillations. This report documents one of the available options for this stabilization in RELAP-7 -- a new and novel approach known as the entropy viscosity method. Because the code is an ongoing development effort in which the physical sub models, numerics, and coding are evolving, so too must the specific details of the entropy viscosity stabilization method. Here the fundamentals of the method in their current state are presented.

  5. A Naturally Occurring Mutation in ropB Suppresses SpeB Expression and Reduces M1T1 Group A Streptococcal

    E-Print Network [OSTI]

    Nizet, Victor

    University, Cairo, Egypt, 3 The VA Hospital, Memphis, Tennessee, United States of America, 4 The Department Epidemiological studies of group A streptococcus (GAS) have noted an inverse relationship between SpeB expression show that an intact RopB and efficient SpeB production are necessary for systemic infection with GAS

  6. New Model to Predict Formation Damage due to Sulfur Deposition in Sour M.A. Mahmoud and A.A. Al-Majed, KFUPM, all SPE

    E-Print Network [OSTI]

    Al-Majed, Abdulaziz Abdullah

    SPE 149535 New Model to Predict Formation Damage due to Sulfur Deposition in Sour Gas Wells M of SPE copyright. Abstract Elemental sulfur (S8) is often present in considerable amounts in sour gas to deposit in the formation. Sulfur deposition can cause severe loss in the pore space available for gas

  7. Copyright 1999, Society of Petroleum Engineers Inc. This paper was prepared for presentation at the 1999 SPE Asia Pacific Oil and Gas

    E-Print Network [OSTI]

    Schechter, David S.

    Copyright 1999, Society of Petroleum Engineers Inc. This paper was prepared for presentation at the 1999 SPE Asia Pacific Oil and Gas Conference and Exhibition held in Jakarta, Indonesia, 20­22 April 1999. This paper was selected for presentation by an SPE Program Committee following review

  8. Bulk viscosity of QCD matter near the critical temperature

    E-Print Network [OSTI]

    D. Kharzeev; K. Tuchin

    2007-05-29

    Kubo's formula relates bulk viscosity to the retarded Green's function of the trace of the energy-momentum tensor. Using low energy theorems of QCD for the latter we derive the formula which relates the bulk viscosity to the energy density and pressure of hot matter. We then employ the available lattice QCD data to extract the bulk viscosity as a function of temperature. We find that close to the deconfinement temperature bulk viscosity becomes large, with viscosity-to-entropy ratio zeta/s about 1.

  9. Copyright 2006, Society of Petroleum Engineers This paper was prepared for presentation at the 2006 SPE Intelligent Energy Conference and

    E-Print Network [OSTI]

    Hwang, Kai

    Copyright 2006, Society of Petroleum Engineers This paper was prepared for presentation at the 2006 SPE Intelligent Energy Conference and Exhibition held in Amsterdam, The Netherlands, 11­13 April 2006 reviewed by the Society of Petroleum Engineers and are subject to correction by the author(s). The material

  10. Eos, Vol. 86, No. 44, 1 November 2005 U.S. Navy Sued Over Sonar Use The

    E-Print Network [OSTI]

    Stewart, Sarah T.

    Eos, Vol. 86, No. 44, 1 November 2005 U.S. Navy Sued Over Sonar Use The Natural Resources Defense.S. Navy over its use of mid-frequency sonar, the principle system used aboard U.S. naval ves- sels,including the Marine Mammals Protection Act.NRDC lawyer Andrew Wetzler said the goal of this suit is to compel the Navy

  11. Shear Viscosity Coefficient from Microscopic Models

    E-Print Network [OSTI]

    Azwinndini Muronga

    2003-12-02

    The transport coefficient of shear viscosity is studied for a hadron matter through microscopic transport model, the Ultra--relativistic Quantum Molecular Dynamics (UrQMD), using the Green--Kubo formulas. Molecular--dynamical simulations are performed for a system of light mesons in a box with periodic boundary conditions. Starting from an initial state composed of $\\pi, \\eta ,\\omega ,\\rho ,\\phi$ with a uniform phase--space distribution, the evolution takes place through elastic collisions, production and annihilation. The system approaches a stationary state of mesons and their resonances, which is characterized by common temperature. After equilibration, thermodynamic quantities such as the energy density, particle density, and pressure are calculated. From such an equilibrated state the shear viscosity coefficient is calculated from the fluctuations of stress tensor around equilibrium using Green--Kubo relations. We do our simulations here at zero net baryon density so that the equilibration times depend on the energy density. We do not include hadron strings as degrees of freedom so as to maintain detailed balance. Hence we do not get the saturation of temperature but this leads to longer equilibration times.

  12. Non-invasive fluid density and viscosity measurement

    DOE Patents [OSTI]

    Sinha, Dipen N. (Los Alamos, NM)

    2012-05-01

    The noninvasively measurement of the density and viscosity of static or flowing fluids in a section of pipe such that the pipe performs as the sensing apparatus, is described. Measurement of a suitable structural vibration resonance frequency of the pipe and the width of this resonance permits the density and viscosity to be determined, respectively. The viscosity may also be measured by monitoring the decay in time of a vibration resonance in the pipe.

  13. Hyperon bulk viscosity in the presence of antikaon condensate

    E-Print Network [OSTI]

    Debarati Chatterjee; Debades Bandyopadhyay

    2009-10-31

    We investigate the hyperon bulk viscosity due to the non-leptonic process $n + p \\rightleftharpoons p + \\Lambda $ in $K^-$ condensed matter and its effect on the r-mode instability in neutron stars. We find that the hyperon bulk viscosity coefficient in the presence of antikaon condensate is suppressed compared with the case without the condensate. The suppressed hyperon bulk viscosity in the superconducting phase is still an efficient mechanism to damp the r-mode instability in neutron stars.

  14. Computing the viscosity of the QGP on the lattice

    E-Print Network [OSTI]

    Harvey B. Meyer

    2008-05-29

    I review the recent progress made in calculating shear and bulk viscosity on the lattice, and discuss ways to improve the calculation.

  15. A First-Order Stochastic Prognostic System for the Diagnosis of Helicopter Rotor Systems for the US Navy

    E-Print Network [OSTI]

    Luger, George

    A First-Order Stochastic Prognostic System for the Diagnosis of Helicopter Rotor Systems for the US a diagnostic system for the US Navy to use in the analysis of the "running health" of helicopter rotor systems the data sets of actual helicopter rotor failures supplied by the US Navy. We discuss both critical

  16. Electric Demand Reduction for the U.S. Navy Public Works Center San Diego, California

    SciTech Connect (OSTI)

    Kintner-Meyer, Michael CW

    2000-09-30

    Pacific Northwest National Laboratory investigated the profitability of operating a Navy ship's generators (in San Diego) during high electricity price periods rather than the ships hooking up to the Base electrical system for power. Profitability is predicated on the trade-off between the operating and maintenance cost incurred by the Navy for operating the ship generators and the net profit associated with the sale of the electric power on the spot market. In addition, PNNL assessed the use of the ship's generators as a means to achieve predicted load curtailments, which can then be marketed to the California Independent System Operator.

  17. Copyright 2000, Society of Petroleum Engineers Inc. This paper was prepared for presentation at the 2000 SPE Annual Technical Conference and

    E-Print Network [OSTI]

    Copyright 2000, Society of Petroleum Engineers Inc. This paper was prepared for presentation at the 2000 SPE Annual Technical Conference and Exhibition held in Dallas, Texas, 1­4 October 2000. This paper

  18. Copyright 2000, Society of Petroleum Engineers Inc. This paper was prepared for presentation at the 2000 SPE/DOE Improved Oil Recovery

    E-Print Network [OSTI]

    Patzek, Tadeusz W.

    at the 2000 SPE/DOE Improved Oil Recovery Symposium held in Tulsa, Oklahoma, 3­5 April 2000. This paper, does not necessarily reflect any position of the Society of Petroleum Engineers, its officers

  19. This paper was prepared for presentation at the SPE/DOE Thirteenth Symposium on Improved Oil Recovery held in Tulsa, Oklahoma, 1317 April 2002.

    E-Print Network [OSTI]

    Patzek, Tadeusz W.

    This paper was prepared for presentation at the SPE/DOE Thirteenth Symposium on Improved Oil and are subject to correction by the author(s). The material, as presented, does not necessarily reflect any

  20. Copyright 2000, Society of Petroleum Engineers Inc. This paper was prepared for presentation at the 2000 SPE/DOE Improved Oil Recovery Symposium

    E-Print Network [OSTI]

    Patzek, Tadeusz W.

    at the 2000 SPE/DOE Improved Oil Recovery Symposium held in Tulsa, Oklahoma, 3­5 April 2000. This paper, does not necessarily reflect any position of the Society of Petroleum Engineers, its officers

  1. Data Release Report for Source Physics Experiment 1 (SPE-1), Nevada National Security Site

    SciTech Connect (OSTI)

    Townsend, Margaret [NSTec; Mercadente, Jennifer [NSTec

    2014-04-28

    The first Source Physics Experiment shot (SPE-1) was conducted in May 2011. The explosive source was a ~100-kilogram TNT-equivalent chemical set at a depth of 60 meters. It was recorded by an extensive set of instrumentation that includes sensors both at near-field (less than 100 meters) and far-field (more than 100 meters) distances. The near-field instruments consisted of three-component accelerometers deployed in boreholes around the shot and a set of singlecomponent vertical accelerometers on the surface. The far-field network comprised a variety of seismic and acoustic sensors, including short-period geophones, broadband seismometers, three-component accelerometers, and rotational seismometers at distances of 100 meters to 25 kilometers. This report coincides with the release of these data for analysts and organizations that are not participants in this program. This report describes the first Source Physics Experiment and the various types of near-field and far-field data that are available.

  2. 1 Visco-plastic rheology 1.1 Effective viscosity

    E-Print Network [OSTI]

    Cerveny, Vlastislav

    1 Visco-plastic rheology 1.1 Effective viscosity Rheology specifies the relationship between viscosity eff, = 2eff , (2) which includes viscous and plastic components, 1 eff = 1 visc + 1 plast . (3) Also the strain rate tensor can be split into viscous and plastic part, = visc + plast , (4) where

  3. Type II Migration: Varying Planet Mass and Disc Viscosity

    E-Print Network [OSTI]

    Richard G. Edgar

    2008-07-03

    This paper continues an earlier study of giant planet migration, examining the effect of planet mass and disc viscosity on the migration rate. We find that the migration rate of a gap-opening planet varies systematically with the planet's mass, as predicted in our earlier work. However, the variation with disc viscosity appears to be much weaker than expected.

  4. The Navy must be ready to fight and win today, while building the ability to prevail into the future. Education is our asymmetric advantage in developing

    E-Print Network [OSTI]

    CONCLUSION The Navy must be ready to fight and win today, while building the ability to prevail. Be Ready. #12;INTRODUCTION Sailors and naval officers­our warfighting force­ constitute the Navy's most prized and valuable resource. Education is our Navy's strategic investment to enhance effectiveness

  5. Seventh International Symposium on Technology and Mine Problem, NPS, Monterey, California, USA, 2-4 May, 2006 1 Abstract -The Navy's Impact Burial Model (IMPACT35)

    E-Print Network [OSTI]

    Chu, Peter C.

    -4 May, 2006 1 1 Abstract - The Navy's Impact Burial Model (IMPACT35) predicts the cylindrical mine.S. Navy from "blue" water, anti-Soviet focus, towards a concentration on the regional littoral threats of the world. With the increasing number of regional and asymmetric threats, the Navy must operate effectively

  6. Journal of Counter-Ordnance Technology (Fifth International Symposium on Technology and Mine Problem) 1 Acoustic Mine Detection Using the Navy's

    E-Print Network [OSTI]

    Chu, Peter C.

    Problem) 1 Acoustic Mine Detection Using the Navy's CASS/GRAB Model Peter C. Chu, Carlos Cintron, Steven D the Navy's Comprehensive Acoustic Simulation System/Gaussian Ray Bundle (CASS/GRAB) model. Sound speed needs in that region. Index Terms--Acoustic mine hunting, Navy's comprehensive acoustic simulation

  7. 555 Dyer Road, Ingersoll Hall, Monterey, CA 93950 (831) 656-3487 www.defensereform.org Best practices in the Navy's energy programs

    E-Print Network [OSTI]

    practices in the Navy's energy programs Strategic communication factors operating in the tactical forces Abstract The Department of the Navy is the second largest consumer of petroleum within the Department of Defense and has been tasked by Navy leadership to reduce energy costs in the tactical forces. Energy

  8. The United States Navy and Marine Corps rely far too much on petroleum, a dependency that degrades the strategic position of our country and the tactical

    E-Print Network [OSTI]

    The United States Navy and Marine Corps rely far too much on petroleum, a dependency that degrades the nation towards a clean energy economy, the Department of the Navy established the following five ambitious energy goals that will move the Navy and Marine Corps away from a reliance on petroleum

  9. Temperature dependence of bulk viscosity in water using acoustic spectroscopy

    E-Print Network [OSTI]

    M. J. Holmes; N. G. Parker; M. J. W. Povey

    2010-02-16

    Despite its fundamental role in the dynamics of compressible fluids, bulk viscosity has received little experimental attention and there remains a paucity of measured data. Acoustic spectroscopy provides a robust and accurate approach to measuring this parameter. Working from the Navier-Stokes model of a compressible fluid one can show that the bulk viscosity makes a significant and measurable contribution to the frequency-squared acoustic attenuation. Here we employ this methodology to determine the bulk viscosity of Millipore water over a temperature range of 7 to 50 degrees Celsius. The measured attenuation spectra are consistent with the theoretical predictions, while the bulk viscosity of water is found to be approximately three times larger than its shear counterpart, reinforcing its significance in acoustic propagation. Moreover, our results demonstrate that this technique can be readily and generally applied to fluids to accurately determine their temperature dependent bulk viscosities.

  10. 46.1 Shear Viscosity An important mechanical property of fluids is viscosity. Physical systems and applications as diverse as

    E-Print Network [OSTI]

    Kostic, Milivoje M.

    46-1 46.1 Shear Viscosity An important mechanical property of fluids is viscosity. Physical systems, the internal friction of a fluid is analogous to the macroscopic mechanical friction, which causes an object. Kostic Northern Illinois University #12;46-2 Mechanical Variables top plate causes the fluid adjacent

  11. Analysis of volatile contaminants in US Navy fleet soda lime. Technical report, August 1992-May 1995

    SciTech Connect (OSTI)

    Lillo, R.S.; Ruby, R.; Gummin, D.D.; Porter, W.R.; Caldwell, J.M.

    1995-06-01

    Contamination was suspected of U.S. Navy Fleet soda lime (High Performance Sodasorb(R)) when an ammonia-like odor was reported during its use in August 1992. This material contained indicator dye and was used for carbon dioxide absorption during diving. This incident had a major impact on the U.S Navy diving program when the Navy temporarily banned use of Sodasorb(R) and authorized Sofnolime(R) as an interim replacement. The Naval Medical Research Institute was immediately assigned to investigate. Testing involved sampling from the headspace (gas space) inside closed buckets and from an apparatus simulating conditions during operational diving. Volatile organic compounds were analyzed by gas chromatography and mass spectrometry; ammonia and amines were measured by infrared spectroscopy. Significant amounts of ammonia (up to 30 ppm), ethyl and diethyl amines (up to several ppm), and various aliphatic hydrocarbons (up to 60 ppm) were detected during testing of both Sodasorb(R) and Sofnolime(R). Contaminants were slowly removed by gas flow and did not return. The source(s) of the ammonia and amines are unknown, although they may result from the breakdown of the indicator dye. Hydrocarbon contamination appeared to result from the materials of which the bucket is constructed. Based on these findings, the U.S. Navy is expected to phase in non-indicating soda lime that will be required to meet defined contaminant limits.

  12. EA-1876: Pennsylvania State Energy Program’s Conergy Navy Yard Solar Project, Philadelphia, Pennsylvania

    Broader source: Energy.gov [DOE]

    Conergy Projects, Inc. (Conergy) proposes to construct and operate a 1.251 megawatt (MW) solar photovoltaic (PV) facility at the former Navy Yard site in south Philadelphia in Pennsylvania’s Philadelphia County to provide up to 1,596 MW hours of electricity per year, feeding directly into the distribution grid.

  13. Elongational viscosity of photo-oxidated LDPE

    SciTech Connect (OSTI)

    Rolón-Garrido, Víctor H. E-mail: manfred.wagner@tu-berlin.de; Wagner, Manfred H. E-mail: manfred.wagner@tu-berlin.de

    2014-05-15

    Sheets of low-density polyethylene (LDPE) were photo-oxidatively treated at room temperature, and subsequently characterized rheologically in the melt state by shear and uniaxial extensional experiments. For photo-oxidation, a xenon lamp was used to irradiate the samples for times between 1 day and 6 weeks. Linear-viscoelastic characterization was performed in a temperature range of 130 to 220°C to obtain the master curve at 170°C, the reference temperature at which the elongational viscosities were measured. Linear viscoelasticity is increasingly affected by increasing photo-oxidation due to crosslinking of LDPE, as corroborated by an increasing gel fraction as determined by a solvent extraction method. The elongational measurements reveal a strong enhancement of strain hardening until a saturation level is achieved. The elongational data are analyzed in the frame work of two constitutive equations, the rubber-like liquid and the molecular stress function models. Within the experimental window, timedeformation separability is confirmed for all samples, independent of the degree of photo-oxidation.

  14. Viscosity prescription for gravitationally unstable accretion disks

    E-Print Network [OSTI]

    Rafikov, Roman R

    2015-01-01

    Gravitationally unstable accretion disks emerge in a variety of astrophysical contexts - giant planet formation, FU Orioni outbursts, feeding of AGNs, and the origin of Pop III stars. When a gravitationally unstable disk is unable to cool rapidly it settles into a quasi-stationary, fluctuating gravitoturbulent state, in which its Toomre Q remains close to a constant value Q_0~1. Here we develop an analytical formalism describing the evolution of such a disk, which is based on the assumptions of Q=Q_0 and local thermal equilibrium. Our approach works in the presence of additional sources of angular momentum transport (e.g. MRI), as well as external irradiation. Thermal balance dictates a unique value of the gravitoturbulent stress \\alpha_{gt} driving disk evolution, which is a function of the local surface density and angular frequency. We compare this approach with other commonly used gravitoturbulent viscosity prescriptions, which specify the explicit dependence of stress \\alpha_{gt} on Toomre Q in an ad hoc...

  15. Development of US Navy Shipboard Systems for solid and liquid waste thermal treatment. Report for July 1995-April 1996

    SciTech Connect (OSTI)

    Gullet, B.K.

    1996-07-01

    The paper describes the U.S. Navy`s shipboard environmental challenges and a few of its research programs for meeting its needs for solid and liquid waste treatment. This objective is particularly important in environmentally sensitive areas, such as the Mediterranean Sea, where fleet deployment time is significant. Prohibitions on ocean dumping and anticipated requirements on effluent discharge quality have led the Navy to continue the research, development, and demonstration of shipboard systems to treat their unpreventable wastes. For solid, non-hazardous wastes, post-minimization efforts are geared toward long-term development of systems to thermally pyrolyze and oxidize the wastes into significantly reduced volume and weight.

  16. Transition between fragmentation and permeable outgassing of low viscosity magmas

    E-Print Network [OSTI]

    Manga, Michael

    Transition between fragmentation and permeable outgassing of low viscosity magmas Atsuko Namiki a; fragmentation; decompression; permeability; outgassing; basaltic magma; fire fountain 1. Introduction into discrete pieces (fragmentation) and the rate at which gases escape from the rising magma (outgassing

  17. Method for controlling the viscosity of siloxane oils

    DOE Patents [OSTI]

    Carey, A.A.; Shor, J.T.

    1984-09-12

    This invention relates to a method of controlling the viscosity of siloxane oils in the presence of lead by adding a small amount of a dione such as p-benzoquinone or 2,3-butanedione.

  18. Gas Viscosity at High Pressure and High Temperature 

    E-Print Network [OSTI]

    Ling, Kegang

    2012-02-14

    . Although viscosity of some pure components such as methane, ethane, propane, butane, nitrogen, carbon dioxide and binary mixtures of these components at low-intermediate pressure and temperature had been studied intensively and been understood thoroughly...

  19. Viscosity stabilization of SRC residual oil. Final technical report

    SciTech Connect (OSTI)

    Tewari, K.C.

    1984-05-01

    The use of SRC residual oils for No. 6 Fuel Oil substitutes has been proposed. The oils exhibit viscosity characteristics at elevated temperatures that allow this substitution with only minor modifications to the existing fuel oil infrastructure. However, loss of low-boiling materials causes an increase in the viscosity of the residual oils that is greater than expected from concentration changes. A process has been developed that minimizes the loss of volatiles and thus maintains the viscosity of these materials. The use of an additive (water, phenol, or an SRC light oil cut rich in low-boiling phenols in amounts up to 2.0 wt %) accomplishes this and hence stabilizes the pumping and atomizing characteristics for an extended period. During the course of the work, the components of the volatiles lost were identified and the viscosity change due to this loss was quantified. 3 references, 6 figures, 9 tables.

  20. Coordinating rooks and bishops: an institutional history of the joint army and navy board, 1903-1919 

    E-Print Network [OSTI]

    Godin, Jason Robert

    2005-11-01

    Board actions on American civil-military relations, and the efficacy of interservice cooperation. This thesis is based largely on unpublished as well as published primary sources, including the records of the Joint Board, Navy General Board records...

  1. Superfund Record of Decision (EPA Region 10): Old Navy Dump Manchester Laboratory (USEPA/NOAA), Manchester, WA, September 30, 1997

    SciTech Connect (OSTI)

    NONE

    1998-01-01

    This decision document presents the selected remedial action for the Old Navy Dump/Manchester Annex Superfund Site (Site) in Manchester, Washington. The selected remedy is the only response action planned for the Site.

  2. Managing a sea of information : shipboard command and control in the United States Navy, 1899-1945

    E-Print Network [OSTI]

    Wolters, Timothy Scott, 1965-

    2003-01-01

    This dissertation traces the history of shipboard command and control systems in the United States Navy from 1899, when the service first conducted experiments with wireless telegraphy, through World War II, the conflict ...

  3. Live Webinar on the Marine and Hydrokinetic Demonstrations at The Navy's Wave Energy Test Site Funding Opportunity Announcement

    Broader source: Energy.gov [DOE]

    On Wednesday, May 7, 2014 from 3:00 PM - 4:30 PM EDT the Water Power Program will hold an informational webinar on the Marine and Hydrokinetic (MHK) Demonstrations at The Navy's Wave Energy Test...

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

    SciTech Connect (OSTI)

    Not Available

    2014-04-01

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

  5. Energy Management System Lowers U.S. Navy Energy Costs Through PV System Interconnection (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2014-04-01

    To meet the U.S. Navy's energy goals, the National Renewable Energy Laboratory (NREL) and the Naval Facilities Engineering Command (NAVFAC) spent two years collaborating on demonstrations that tested market-ready energy efficiency measures, renewable energy generation, and energy systems integration. One such technology - an energy management system - was identified as a promising method for reducing energy use and costs, and can contribute to increasing energy security.

  6. Establishment of the United States Navy Mine Warfare Center of Excellence in the Corpus Christi Bay Area, Texas

    SciTech Connect (OSTI)

    Kosclski, J.L.; Boyer, R. [Turner Collie and Braden, Inc., Houston, TX (United States); Sloger, W. [Naval Facilities Engineering Command, North Charleston, SC (United States). Southern Div.

    1997-08-01

    The proposed establishment of the US Navy Mine Warfare Center of Excellence (MWCE) in the Corpus Christi Bay Area, Texas, involved the collocation of the Navy`s Mine Warfare and Mine Counter Measures assets in proximity to each other at Naval Station (NAVSTA) Ingleside and Naval Air Station (NAS) Corpus Christi, Texas. Collocation of these Navy forces would provide significant advantages in meeting mission and operational requirements. This action would improve the operational training and readiness of the forces. In addition to new construction or modifications at NAVSTA Ingleside, NAS Corpus Christi, and off-base; the establishment of offshore training and operating areas was required. When the project was first proposed in 1993, considerable concern was expressed by environmental interests, shrimpers, and state and federal resource agencies regarding the impact of the proposed training activities within Gulf waters. The Navy and Turner Collie and Braden, Inc., under contract to the Navy, conducted several technical studies and extensive coordination with concerned interests during the environmental impact statement process to identify and document the potential intensity, magnitude, and duration of impact from each proposed training activity.

  7. The Next Generation Air Particle Detectors for the United States Navy

    SciTech Connect (OSTI)

    Robert Hayes and Craig Marianno

    2007-06-24

    Design and testing of the United States Navy’s next generation air particle detector (NGAPD) is presently underway. The NGAPD is intended for use in nuclear applications for the United States Navy and is being designed to detect airborne Co-60 with a reduction in false alarms and improved ease of use. Features being developed include gamma compensation, low maintenance, commercial off-the-shelf electronics, and spectrum simulation for quality assurance and functional testing applications. By supplying a spectrum simulator, the radon stripping algorithm can be running when a simulated anthropogenic source spectrum (e.g., from Co-60 or transuranics) is superimposed on the radon progeny spectrum. This will allow alarm levels to be tested when the air flow is running and the radon stripping algorithm is providing the instrument response output. Modern units evaluate source spectra with the air flow off and the radon spectrum absent thereby not testing the true system performance which comes out of the radon stripping algorithm. Testing results of the preliminary prototype show promise along with computer simulations of source spectra. Primary testing results taken to date include gamma compensation, thermal insults, vibration and spectrum simulation.

  8. Overview of Navy marine ecological risk assessment projects in Rhode Island

    SciTech Connect (OSTI)

    Tracey, G.A. [Science Applications International Corp., Narragansett, RI (United States); King, J.; Quinn, J. [Univ. of Rhode Island, Narragansett, RI (United States); Hahn, S. [Navy, Lester, PA (United States). Northern Div.

    1995-12-31

    The US Navy has had a long and prominent role in shaping the shoreline of Narragansett Bay, R.I. During times of war, Navy bases in this area, as well as elsewhere, commonly used seaside landfill and/or conduits to the sea to dispose of wastes, including construction materials, solvents, spent fuels, and electrical components. Recognizing that the disposal areas may pose risks to the environment and human health, the Navy has been actively pursuing remediation options based on input from Ecological Risk Assessments (ERAs). In Narragansett Bay, four sites have been targeted for ecological risk assessments; one at the Naval Construction Battalion Center in western Narragansett Bay and three sites at the Naval Education and Training Center (NETC) in the Lower East Passage of Narragansett Bay. To streamline the process of ERA scoping, OA/QC and reporting procedures, a Master Plan was developed to encompass all general aspects of these projects, and were augmented by site-specific study plans for each ERA. This approach has dramatically reduced the time and cost which would have been required had each study been developed separately. This presentation will include an overview of each project, including conceptual approach, problem formulation, exposure and effects characterization and risk assessment summary.

  9. Navy looks to bugs for cleanup task. [Bioremediation of Naval Fuel Depot

    SciTech Connect (OSTI)

    Not Available

    1993-05-03

    The US Navy is about to step into bioremediation in a big way, using the largest naval fuel depot in the continental US as a test bed for better ways to clean oil-soaked soils. Craney Island, a 900-acre peninsula near Portsmouth, Va., has been the Navy's main East Coast fueling depot since World War II. In the next few weeks, a 15-acre site on the island will be transformed into the largest bioremediation experiment on the East Coast, say officials with the Naval Facilities Engineering Command (NAVFAC), Atlantic Division, which is in charge of the cleanup for the Fleet and Industrial Supply Center at Norfolk, VA. The site is extremely contaminated with petroleum, oil and lubricants (POL), primarily ship bunker fuel, and it will be cleaned up under the Navy's Installation Restoration Program, says John Peters, a NAVFAC spokesman. Using naturally occurring bacteria, the contractor will churn and aerate the soil, add lime and fertilizers, bring the moisture level to 20% and allow the mix to [open quote]bake[close quote] for about four months.

  10. Viscosity and scale invariance in the unitary Fermi gas

    E-Print Network [OSTI]

    Tilman Enss; Rudolf Haussmann; Wilhelm Zwerger

    2010-10-12

    We compute the shear viscosity of the unitary Fermi gas above the superfluid transition temperature, using a diagrammatic technique that starts from the exact Kubo formula. The formalism obeys a Ward identity associated with scale invariance which guarantees that the bulk viscosity vanishes identically. For the shear viscosity, vertex corrections and the associated Aslamazov-Larkin contributions are shown to be crucial to reproduce the full Boltzmann equation result in the high-temperature, low fugacity limit. The frequency dependent shear viscosity $\\eta(\\omega)$ exhibits a Drude-like transport peak and a power-law tail at large frequencies which is proportional to the Tan contact. The weight in the transport peak is given by the equilibrium pressure, in agreement with a sum rule due to Taylor and Randeria. Near the superfluid transition the peak width is of the order of $0.5 T_F$, thus invalidating a quasiparticle description. The ratio $\\eta/s$ between the static shear viscosity and the entropy density exhibits a minimum near the superfluid transition temperature whose value is larger than the string theory bound $\\hbar/(4\\pi k_B)$ by a factor of about seven.

  11. Dark goo: Bulk viscosity as an alternative to dark energy

    E-Print Network [OSTI]

    Jean-Sebastien Gagnon; Julien Lesgourgues

    2011-09-16

    We present a simple (microscopic) model in which bulk viscosity plays a role in explaining the present acceleration of the universe. The effect of bulk viscosity on the Friedmann equations is to turn the pressure into an "effective" pressure containing the bulk viscosity. For a sufficiently large bulk viscosity, the effective pressure becomes negative and could mimic a dark energy equation of state. Our microscopic model includes self-interacting spin-zero particles (for which the bulk viscosity is known) that are added to the usual energy content of the universe. We study both background equations and linear perturbations in this model. We show that a dark energy behavior is obtained for reasonable values of the two parameters of the model (i.e. the mass and coupling of the spin-zero particles) and that linear perturbations are well-behaved. There is no apparent fine tuning involved. We also discuss the conditions under which hydrodynamics holds, in particular that the spin-zero particles must be in local equilibrium today for viscous effects to be important.

  12. Dark goo: Bulk viscosity as an alternative to dark energy

    E-Print Network [OSTI]

    Gagnon, Jean-Sebastien

    2011-01-01

    We present a simple (microscopic) model in which bulk viscosity plays a role in explaining the present acceleration of the universe. The effect of bulk viscosity on the Friedmann equations is to turn the pressure into an "effective" pressure containing the bulk viscosity. For a sufficiently large bulk viscosity, the effective pressure becomes negative and could mimic a dark energy equation of state. Our microscopic model includes self-interacting spin-zero particles (for which the bulk viscosity is known) that are added to the usual energy content of the universe. We study both background equations and linear perturbations in this model. We show that a dark energy behavior is obtained for reasonable values of the two parameters of the model (i.e. the mass and coupling of the spin-zero particles) and that linear perturbations are well-behaved. There is no apparent fine tuning involved. We also discuss the conditions under which hydrodynamics holds, in particular that the spin-zero particles must be in local eq...

  13. Bulk Viscosity and Cavitation in Boost-Invariant Hydrodynamic Expansion

    E-Print Network [OSTI]

    Krishna Rajagopal; Nilesh Tripuraneni

    2010-02-16

    We solve second order relativistic hydrodynamics equations for a boost-invariant 1+1-dimensional expanding fluid with an equation of state taken from lattice calculations of the thermodynamics of strongly coupled quark-gluon plasma. We investigate the dependence of the energy density as a function of proper time on the values of the shear viscosity, the bulk viscosity, and second order coefficients, confirming that large changes in the values of the latter have negligible effects. Varying the shear viscosity between zero and a few times s/(4 pi), with s the entropy density, has significant effects, as expected based on other studies. Introducing a nonzero bulk viscosity also has significant effects. In fact, if the bulk viscosity peaks near the crossover temperature Tc to the degree indicated by recent lattice calculations in QCD without quarks, it can make the fluid cavitate -- falling apart into droplets. It is interesting to see a hydrodynamic calculation predicting its own breakdown, via cavitation, at the temperatures where hadronization is thought to occur in ultrarelativistic heavy ion collisions.

  14. Bulk Viscosity and Cavitation in Boost-Invariant Hydrodynamic Expansion

    E-Print Network [OSTI]

    Rajagopal, Krishna

    2009-01-01

    We solve second order relativistic hydrodynamics equations for a boost-invariant 1+1-dimensional expanding fluid with an equation of state taken from lattice calculations of the thermodynamics of strongly coupled quark-gluon plasma. We investigate the dependence of the energy density as a function of proper time on the values of the shear viscosity, the bulk viscosity, and second order coefficients, confirming that large changes in the values of the latter have negligible effects. Varying the shear viscosity between zero and a few times s/(4 pi), with s the entropy density, has significant effects, as expected based on other studies. Introducing a nonzero bulk viscosity also has significant effects. In fact, if the bulk viscosity peaks near the crossover temperature Tc to the degree indicated by recent lattice calculations in QCD without quarks, it can make the fluid cavitate -- falling apart into droplets. It is interesting to see a hydrodynamic calculation predicting its own breakdown, via cavitation, at th...

  15. EXPERIMENT 5101 STANDARD NAVY YIELD TRIAL PLANTING DATE 06/01/05 ENTRY NAMES NO. YIELD CWT 100 SEED DAYS TO DAYS TO LODGING HEIGHT DES.

    E-Print Network [OSTI]

    EXPERIMENT 5101 STANDARD NAVY YIELD TRIAL PLANTING DATE 06/01/05 ENTRY NAMES NO. YIELD CWT 100 SEED-242 NAVY GENTEC, VISTA 23 31.6 19.9 44.0 96.2 3.0 48.1 4.0 N00762 VISTA/MACKINAC//N94080 3 31.5 18.6 43;EXPERIMENT 5101 STANDARD NAVY YIELD TRIAL PLANTING DATE 06/01/05 ENTRY NAMES NO. YIELD CWT 100 SEED DAYS

  16. Method for measuring liquid viscosity and ultrasonic viscometer

    DOE Patents [OSTI]

    Sheen, Shuh-Haw (Naperville, IL); Lawrence, William P. (Downers Grove, IL); Chien, Hual-Te (Naperville, IL); Raptis, Apostolos C. (Downers Grove, IL)

    1994-01-01

    An ultrasonic viscometer and method for measuring fluid viscosity are provided. Ultrasonic shear and longitudinal waves are generated and coupled to the fluid. Reflections from the generated ultrasonic shear and longitudinal waves are detected. Phase velocity of the fluid is determined responsive to the detected ultrasonic longitudinal waves reflections. Viscosity of the fluid is determined responsive to the detected ultrasonic shear waves reflections. Unique features of the ultrasonic viscometer include the use of a two-interface fluid and air transducer wedge to measure relative signal change and to enable self calibration and the use of a ratio of reflection coefficients for two different frequencies to compensate for environmental changes, such as temperature.

  17. Viscosity-Induced Crossing of the Phantom Barrier

    E-Print Network [OSTI]

    Brevik, Iver

    2015-01-01

    We show explicitly, by using astrophysical data plus reasonable assumptions for the bulk viscosity in the cosmic fluid, how the magnitude of this viscosity may be high enough to drive the fluid from its position in the quintessence region at present time $t=0$ across the barrier $w=-1$ into the phantom region in the late universe. The phantom barrier is accordingly not a sharp mathematical divide, but rather a fuzzy concept. We also calculate the limiting forms of various thermodynamical quantities, including the rate of entropy production, for a dark energy fluid near the future Big Rip singularity.

  18. Stress Tensor and Bulk Viscosity in Relativistic Nuclear Collisions

    E-Print Network [OSTI]

    Rainer J. Fries; Berndt Müller; Andreas Schäfer

    2008-08-30

    We discuss the influence of different initial conditions for the stress tensor and the effect of bulk viscosity on the expansion and cooling of the fireball created in relativistic heavy-ion collisions. In particular, we explore the evolution of longitudinal and transverse components of the pressure and the extent of dissipative entropy production in the one-dimensional, boost-invariant hydrodynamic model. We find that a bulk viscosity consistent with recent estimates from lattice QCD further slows the equilibration of the system, however it does not significantly increase the entropy produced.

  19. Ultrahigh and High Resolution Structures and Mutational Analysis of Monomeric Streptococcus pyogenes SpeB Reveal a Functional Role for the Glycine-rich C-terminal Loop

    SciTech Connect (OSTI)

    González-Páez, Gonzalo E.; Wolan, Dennis W.

    2012-09-05

    Cysteine protease SpeB is secreted from Streptococcus pyogenes and has been studied as a potential virulence factor since its identification almost 70 years ago. Here, we report the crystal structures of apo mature SpeB to 1.06 {angstrom} resolution as well as complexes with the general cysteine protease inhibitor trans-epoxysuccinyl-L-leucylamido(4-guanidino)butane and a novel substrate mimetic peptide inhibitor. These structures uncover conformational changes associated with maturation of SpeB from the inactive zymogen to its active form and identify the residues required for substrate binding. With the use of a newly developed fluorogenic tripeptide substrate to measure SpeB activity, we determined IC{sub 50} values for trans-epoxysuccinyl-L-leucylamido(4-guanidino)butane and our new peptide inhibitor and the effects of mutations within the C-terminal active site loop. The structures and mutational analysis suggest that the conformational movements of the glycine-rich C-terminal loop are important for the recognition and recruitment of biological substrates and release of hydrolyzed products.

  20. CO2-Brine Surface Dissolution and Injection: CO2 Storage Enhancement Paul Emeka Eke, SPE, Mark Naylor, Stuart Haszeldine and Andrew Curtis, Scottish Centre for Carbon Storage,

    E-Print Network [OSTI]

    . The abstract must contain conspicuous acknowledgment of SPE copyright. Abstract Carbon capture and storage (CCS, Mark Naylor, Stuart Haszeldine and Andrew Curtis, Scottish Centre for Carbon Storage, School of Geo. The upward buoyancy of dense phase carbon dioxide (CO2) in deep reservoirs means that sites need to be chosen

  1. Copyright 1998, Society of Petroleum Engineers, Inc. This paper was prepared for presentation at the 1998 SPE/DOE Improved Oil Recovery

    E-Print Network [OSTI]

    Patzek, Tadeusz W.

    at the 1998 SPE/DOE Improved Oil Recovery Symposium held in Tulsa, Oklahoma, 19­22 April 1998. This paper-972-952-9435. Abstract This paper deals with growth of injection hydrofractures in transient linear flow in a low flow. In other words, at constant injection pressure, injection rate is remarkably constant. Therefore

  2. Copyright 2000, Society of Petroleum Engineers Inc. This paper was prepared for presentation at the 2000 SPE/DOE Improved Oil Recovery

    E-Print Network [OSTI]

    Patzek, Tadeusz W.

    at the 2000 SPE/DOE Improved Oil Recovery Symposium held in Tulsa, Oklahoma, 3­5 April 2000. This paper, does not necessarily reflect any position of the Society of Petroleum Engineers, its officers could be modified? Does water injection help to recover sufficiently more oil or is it just for pressure

  3. Copyright 1999, Society of Petroleum Engineers Inc. This paper was prepared for presentation at the 1999 SPE Annual Technical Conference and

    E-Print Network [OSTI]

    Mohaghegh, Shahab

    Copyright 1999, Society of Petroleum Engineers Inc. This paper was prepared for presentation at the 1999 SPE Annual Technical Conference and Exhibition held in Houston, Texas, 3­6 October 1999 to begin in July 1999. The third site is the Carthage field in Ea

  4. Top-Down Intelligent Reservoir Modeling (TDIRM) Y.Gomez, Y. Khazaeni, S.D. Mohaghegh, SPE, West Virginia University, R. Gaskari, Intelligent Solutions, Inc.

    E-Print Network [OSTI]

    Mohaghegh, Shahab

    aspects of an oil reservoir. The models include different reservoir saturation conditions (saturated or under-saturated), different number of wells and different distributions of reservoir characteristicsSPE 124204 Top-Down Intelligent Reservoir Modeling (TDIRM) Y.Gomez, Y. Khazaeni, S.D. Mohaghegh

  5. Copyright 2001, Society of Petroleum Engineers Inc. This paper was prepared for presentation at the SPE Eastern Regional Meeting held in

    E-Print Network [OSTI]

    Mohaghegh, Shahab

    fracturing is an economic way of increasing gas well productivity. Hydraulic fracturing is routinely Librarian, SPE, P.O. Box 833836, Richardson, TX 75083-3836, U.S.A., fax 01-972-952-9435. Abstract Hydraulic performed on many gas wells in fields that contain hundreds of wells. Companies have developed databases

  6. Shear Viscosity to Entropy within a Parton Cascade

    E-Print Network [OSTI]

    A. El; C. Greiner; Z. Xu

    2007-06-28

    The shear viscosity is calculated by means of the perturbative kinetic partonic cascade BAMPS with CGC initial conditons for various saturation momentum scale Q_s. eta/s ~ 0.15 stays approximately constant when going from RHIC to LHC.

  7. Stress tensor and bulk viscosity in relativistic nuclear collisions 

    E-Print Network [OSTI]

    Fries, Rainer J.; Mueller, Berndt; Schaefer, Andreas.

    2008-01-01

    REVIEW C 78, 034913 (2008) Stress tensor and bulk viscosity in relativistic nuclear collisions Rainer J. Fries,1,2,3 Berndt Mu?ller,3,4 and Andreas Scha?fer3,5 1Cyclotron Institute and Department of Physics, Texas A&M University, College Station, Texas...

  8. Author's personal copy Viscosity of magmatic liquids: A model

    E-Print Network [OSTI]

    Russell, Kelly

    for viscosity can also predict other transport properties including glass transition temperatures (Tg) and melt are effusive or explosive (Dingwell, 1996; Papale, 1999; Sparks, 2004). Other volatile components (CO2, Cl, Br assumes a common, high-T limit (A) for silicate melt viscosityand returns a value for this limit of -4

  9. Viscosity of magmatic liquids: A model Daniele Giordano a,

    E-Print Network [OSTI]

    Russell, Kelly

    also predict other transport properties including glass transition temperatures (Tg) and melt fragility are effusive or explosive (Dingwell, 1996; Papale, 1999; Sparks, 2004). Other volatile components (CO2, Cl, Br-dependence of viscosity is accounted for by the VFTequation [log =A+B/(T(K)-C)]. The optimization assumes a common, high

  10. Parameters Affecting Viscosity as a Quality Control for Frozen Fish

    E-Print Network [OSTI]

    at the International Sym- posium on Alterations in the Chemical Constitu- ents of Foods in Industrial Processing and preserved chilled, was purchased at a local market. The muscle was minced using a mincer with plate orfices/second and then vacuum-packed and stored at -24°C for the 5 days during which tests were made. The apparent viscosity (Y

  11. Confirming Fundamental Parameters of the Exoplanet Host Star epsilon Eridani Using the Navy Optical Interferometer

    E-Print Network [OSTI]

    Baines, Ellyn K

    2011-01-01

    We measured the angular diameter of the exoplanet host star epsilon Eridani using the Navy Optical Interferometer. We determined its physical radius, effective temperature, and mass by combining our measurement with the star's parallax, photometry from the literature, and the Yonsei-Yale isochrones (Yi et al. 2001), respectively. We used the resulting stellar mass of 0.82 +/- 0.05 M_Sun plus the mass function from Benedict et al. (2006) to calculate the planet's mass, which is 1.53 +/- 0.22 M_Jupiter. Using our new effective temperature, we also estimated the extent of the habitable zone for the system.

  12. CONFIRMING FUNDAMENTAL PROPERTIES OF THE EXOPLANET HOST STAR {epsilon} ERIDANI USING THE NAVY OPTICAL INTERFEROMETER

    SciTech Connect (OSTI)

    Baines, Ellyn K.; Armstrong, J. Thomas, E-mail: ellyn.baines@nrl.navy.mil, E-mail: tarmstr@crater.nrl.navy.mil [Remote Sensing Division, Naval Research Laboratory, 4555 Overlook Avenue SW, Washington, DC 20375 (United States)

    2012-01-10

    We measured the angular diameter of the exoplanet host star {epsilon} Eridani using the Navy Optical Interferometer. We determined its physical radius, effective temperature, and mass by combining our measurement with the star's parallax, photometry from the literature, and the Yonsei-Yale isochrones, respectively. We used the resulting stellar mass of 0.82 {+-} 0.05 M{sub Sun} plus the mass function from Benedict et al. to calculate the planet's mass, which is 1.53 {+-} 0.22 M{sub Jupiter}. Using our new effective temperature, we also estimated the extent of the habitable zone for the system.

  13. Navy Veteran Back to Work on the Smart Grid | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustmentsShirleyEnergyTher i nAand DOEDepartment ofProgramImports by Pipeline intosome ofNationalNavy

  14. Pre-Shot Simulations of Far-Field Ground Motions for the Source Physics Experiment (SPE) Explosions at the Climax Stock, Nevada National Security Site

    SciTech Connect (OSTI)

    Rodgers, A J; Wagoner, J; Petersson, N A; Sjogreen, B

    2010-11-07

    The Source Physics Experiment (SPE) will involve a series of explosions in various geologic and emplacement conditions to validate numerical simulation methods to predict behavior of seismic wave excitation and propagation for nuclear test monitoring. The first SPE's currently underway involve explosions in the Climax Stock (granitic geology) at the Nevada National Security Site (NNSS). Detailed geologic data and published material properties for the major lithologic units of the NNSS and surrounding region were used to build three-dimensional models for seismic wave propagation simulations. The geologic structure near the SPE shot point is quite varied including granitic, carbonate, tuff and alluvium lithologies. We performed preliminary ground motion simulations for a near-source domain covering 8 km x 8 km at the surface centered on the shot point to investigate various source and propagation effects using WPP, LLNL's anelastic seismic wave finite difference code. Simulations indicate that variations in wave propagation properties of the sub-surface will generate strongly path-dependent response once the energy has left the relatively small granitic geology of the near-surface Climax Stock near the SPE shot point. Rough topography to the north and west of SPE shot point causes additional complexity in the signals including energy on the transverse components. Waves propagate much faster through the granitic and carbonate formations and slower through the tuff and alluvium. Synthetic seismograms for a pure explosion source in a 3D geologic structure show large amplitudes on transverse component. For paths to the south sampling the granite, tuff and alluvium lithologies transverse component amplitudes are as high as 50% of that on the vertical and radial components.

  15. Viscosity of aqueous and cyanate ester suspensions containing alumina nanoparticles

    SciTech Connect (OSTI)

    Lawler, Katherine

    2009-08-05

    The viscosities of both aqueous and cyanate ester monomer (BECy) based suspensions of alumina nanoparticle were studied. The applications for these suspensions are different: aqueous suspensions of alumina nanoparticles are used in the production of technical ceramics made by slip casting or tape casting, and the BECy based suspensions are being developed for use in an injection-type composite repair resin. In the case of aqueous suspensions, it is advantageous to achieve a high solids content with low viscosity in order to produce a high quality product. The addition of a dispersant is useful so that higher solids content suspensions can be used with lower viscosities. For BECy suspensions, the addition of nanoparticles to the BECy resin is expected to enhance the mechanical properties of the cured composite. The addition of saccharides to aqueous suspensions leads to viscosity reduction. Through DSC measurements it was found that the saccharide molecules formed a solution with water and this resulted in lowering the melting temperature of the free water according to classic freezing point depression. Saccharides also lowered the melting temperature of the bound water, but this followed a different rule. The shear thinning and melting behaviors of the suspensions were used to develop a model based on fractal-type agglomeration. It is believed that the structure of the particle flocs in these suspensions changes with the addition of saccharides which leads to the resultant viscosity decrease. The viscosity of the BECy suspensions increased with solids content, and the viscosity increase was greater than predicted by the classical Einstein equation for dilute suspensions. Instead, the Mooney equation fits the viscosity behavior well from 0-20 vol% solids. The viscosity reduction achieved at high particle loadings by the addition of benzoic acid was also investigated by NMR. It appears that the benzoic acid interacts with the surface of the alumina particle which may be the cause of the viscosity reduction. The flow behavior of alumina particles in water and BECy is markedly different. Aqueous alumina suspensions are shear thinning at all alumina loadings and capable of 50 vol% loading before losing fluidity whereas BECy/alumina suspensions show Newtonian behavior up to 5 vol%, and above 5 vol% show shear thinning at all shear rates. Highly loaded suspensions (i.e. 20vol% alumina) exhibit shear thinning at low and moderate shear rates and shear thickening at higher shear rates. The maximum particle loading for a fluid suspension, in this case, appears to be about 20 vol%. The difference in the viscosity of these suspensions must be related to the solvent-particle interactions for each system. The reason is not exactly known, but there are some notable differences between BECy and water. Water molecules are {approx}0.28 nm in length and highly hydrogen bonded with a low viscosity (1 mPa's) whereas in the cyanate ester (BECy) system, the solvent molecule is about 1.2 nm, in the largest dimension, with surfaces of varied charge distribution throughout the molecule. The viscosity of the monomer is also reasonably low for organic polymer precursor, about 7 mPa's. Nanoparticles in water tend to agglomerate and form flocs which are broken with the shear force applied during viscosity measurement. The particle-particle interaction is very important in this system. In BECy, the particles appear to be well dispersed and not as interactive. The solvent-particle interaction appears to be most important. It is not known exactly how the alumina particles interact with the monomer, but NMR suggests hydrogen bonding. These hydrogen bonds between the particle and monomer could very well affect the viscosity. A conclusion that can be reached in this work is that the presence of hydroxyl groups on the surface of the alumina particles is significant and seems to affect the interactions between other particles and the solvent. Thus, the hydrogen bonding between particles, particle/additive and/or particle/solvent dictates the behavior of nanos

  16. Drop Formation and Breakup of Low Viscosity Elastic Fluids: Effects of Molecular Weight and Concentration

    E-Print Network [OSTI]

    Tirtaatmadja, Viyada

    2007-01-23

    The dynamics of drop formation and pinch-off have been investigated for a series of low viscosity elastic fluids possessing similar shear viscosities, but differing substantially in elastic properties. On initial approach ...

  17. Determination of fluid viscosities from biconical annular geometries: Experimental and modeling studies 

    E-Print Network [OSTI]

    Rondon, Nolys Javier

    2009-05-15

    Knowledge of viscosity of flow streams is essential for the design and operation of production facilities, drilling operations and reservoir engineering calculations. The determination of the viscosity of a reservoir fluid ...

  18. Design of impressed current cathodic protection (ICCP) systems for U.S. Navy hulls

    SciTech Connect (OSTI)

    Lucas, K.E.; Thomas, E.D.; Kaznoff, A.I.; Hogan, E.A.

    1999-07-01

    The goal of impressed current cathodic protection (ICCP) design for ship hulls, under the Navy Ship's Technical Manual (NSTM, Chapter 633), is to provide a uniform potential distribution at {minus}0.85 V, {+-}0.05 V, versus a silver/silver chloride (Ag/AgCl) reference cell, over the wetted hull surface during all operational aspects of an active ship. To accomplish this, the physical scale modeling (PSM) technique, combined with a rigid design protocol, has been used extensively by the US Navy to provide optimal and retrofit upgrade designs of ICCP systems for hulls. The ICCP design guidance, provided by the protocol, defines the hull properties, hull damage and general power supply requirements. PSM is utilized to determine optimal placement of ICCP components (anodes and reference cells) and to evaluate performance for up to a 15% wetted hull coatings loss under static (pierside) and dynamic (underway) conditions. Data are provided which illustrate the use of the design protocol criteria, along with the integrated PSM technique, to determine ICCP system design and evaluate performance.

  19. Recovery of Navy distillate fuel from reclaimed product. Volume II. Literature review

    SciTech Connect (OSTI)

    Brinkman, D.W.; Whisman, M.L.

    1984-11-01

    In an effort to assist the Navy to better utilize its waste hydrocarbons, NIPER, with support from the US Department of Energy, is conducting research designed to ultimately develop a practical technique for converting Reclaimed Product (RP) into specification Naval Distillate Fuel (F-76). This first phase of the project was focused on reviewing the literature and available information from equipment manufacturers. The literature survey has been carefully culled for methodology applicable to the conversion of RP into diesel fuel suitable for Navy use. Based upon the results of this study, a second phase has been developed and outlined in which experiments will be performed to determine the most practical recycling technologies. It is realized that the final selection of one particular technology may be site-specific due to vast differences in RP volume and available facilities. A final phase, if funded, would involve full-scale testing of one of the recommended techniques at a refueling depot. The Phase I investigations are published in two volumes. Volume 1, Technical Discussion, includes the narrative and Appendices I and II. Appendix III, a detailed Literature Review, includes both a narrative portion and an annotated bibliography containing about 800 references and abstracts. This appendix, because of its volume, has been published separately as Volume 2.

  20. nuclear navy

    National Nuclear Security Administration (NNSA)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of NaturalDukeWakefield Municipal GasAdministration Medal01 Sandia4) August 20123/%2A en46Afedkcp8/%2A en0/%2A en9/%2A

  1. SPE 91413SPE 91413 Anangela Garcia

    E-Print Network [OSTI]

    Mohaghegh, Shahab

    .5% / year) Gas depletion (1.45% / year) Drilling of gas exploratory wells (3.5% / year) Drilling of oil/gas) Drilling of gas exploratory wells (3.5% / year) Drilling of oil/gas exploratory wells (2.5% / year) GDP (2 Information Administration InputsInputs Number of gas exploratory wells Oil/gas completed exploratory wells

  2. Molecular rotors: synthesis and evaluation as viscosity sensors Jeyanthy Sutharsan a

    E-Print Network [OSTI]

    Theodorakis, Emmanuel

    Molecular rotors: synthesis and evaluation as viscosity sensors Jeyanthy Sutharsan a , Darcy-mechanical viscosity sensors. These compounds, referred to as molecular rotors, belong to a class of fluorescent probes present the synthesis and spectroscopic characterization of these compounds as viscosity sensors

  3. Process for stabilizing the viscosity characteristics of coal derived materials and the stabilized materials obtained thereby

    DOE Patents [OSTI]

    Bronfenbrenner, James C. (Allentown, PA); Foster, Edward P. (Allentown, PA); Tewari, Krishna (Allentown, PA)

    1985-01-01

    A process is disclosed for stabilizing the viscosity of coal derived materials such as an SRC product by adding up to 5.0% by weight of a light volatile phenolic viscosity repressor. The viscosity will remain stabilized for a period of time of up to 4 months.

  4. High Resolution Viscosity Measurement by Thermal Noise Detection

    E-Print Network [OSTI]

    Sandoval, Felipe Aguilar; Bellon, Ludovic; Melo, Francisco

    2015-01-01

    An interferometric method is implemented in order to accurately assess the thermal fluctuations of a micro-cantilever sensor in liquid environments. The power spectrum density (PSD) of thermal fluctuations together with Sader's model of the cantilever allow for the indirect measurement of the liquid viscosity with good accuracy. The good quality of the deflection signal and the characteristic low noise of the instrument allow for the detection and corrections of drawbacks due to both the cantilever shape irregularities and the uncertainties on the position of the laser spot at the fluctuating end of the cantilever. Variation of viscosity below 0.03 mPa$\\cdot$s was detected with the alternative to achieve measurements with a volume as low as 50 $\\mu$L.

  5. Apparatus and method for high temperature viscosity and temperature measurements

    DOE Patents [OSTI]

    Balasubramaniam, Krishnan (Mississippi State, MS); Shah, Vimal (Houston, TX); Costley, R. Daniel (Mississippi State, MS); Singh, Jagdish P. (Mississippi State, MS)

    2001-01-01

    A probe for measuring the viscosity and/or temperature of high temperature liquids, such as molten metals, glass and similar materials comprises a rod which is an acoustical waveguide through which a transducer emits an ultrasonic signal through one end of the probe, and which is reflected from (a) a notch or slit or an interface between two materials of the probe and (b) from the other end of the probe which is in contact with the hot liquid or hot melt, and is detected by the same transducer at the signal emission end. To avoid the harmful effects of introducing a thermally conductive heat sink into the melt, the probe is made of relatively thermally insulative (non-heat-conductive) refractory material. The time between signal emission and reflection, and the amplitude of reflections, are compared against calibration curves to obtain temperature and viscosity values.

  6. Accelerating cosmological expansion from shear and bulk viscosity

    E-Print Network [OSTI]

    Stefan Floerchinger; Nikolaos Tetradis; Urs Achim Wiedemann

    2015-03-10

    The dissipation of energy from local velocity perturbations in the cosmological fluid affects the time evolution of spatially averaged fluid dynamic fields and the cosmological solution of Einstein's field equations. We show how this backreaction effect depends on shear and bulk viscosity and other material properties of the dark sector, as well as the spectrum of perturbations. If sufficiently large, this effect could account for the acceleration of the cosmological expansion.

  7. Extensional viscosity measurements of polyethylene using a melt flow indexer 

    E-Print Network [OSTI]

    Moffatt, Scott Gordon

    1999-01-01

    . . . . . . . . 142 APPENDIX C: CONSTANT STRESS RHEOMETER TESTING PROCEDURE. . . . . . APPENDIX D: MELT FLOW INDEXER DATA . . . . . 147 APPENDIX E: CAPILLARY RHEOMETER DATA. . . . . . 184 APPENDIX F: OSCILLATORY RHEOMETER DATA . . . . . . . . 213 APPENDIX G...) [Padmanabhan and Macosko (1997)] . . . . . 14 5 Bagley Correction Factor for the Capillary Rheometer. 23 6 Flow Index Determination. . . . . . . 28 7 Definitions of Lengths Used in the Darby Method. 8 Carreau-Yasuda Fit of Complex Viscosity Data for Resin E...

  8. An alternative approach to viscosity in an accretion disc

    E-Print Network [OSTI]

    R. G. Edgar

    2006-10-02

    Purely hydrodynamic numerical experiments into the evolution of astrophysical discs typically include some sort of viscosity in order to cause accretion. In this paper, we demonstrate an alternative method of implementing viscous forces, with extremely good angular momentum conservation properties. The method is based on altering the cell fluxes, rather than incorporating a viscous force. We test this method on the classical `ring spreading' problem, and demonstrate angular momentum conservation at the $10^{-8}$ level.

  9. Residential Energy-Efficiency Equipment Shown to be a Good Investment for U.S. Navy (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2014-04-01

    A two-year project between the National Renewable Energy Laboratory (NREL) and the U.S. Navy's Naval Facilities Engineering Command (NAVFAC) to demonstrate energy efficiency technologies at bases in Hawaii and Guam resulted in the identification of several promising options for reducing energy use and costs, including whole-house energy efficiency retrofits.

  10. Reducing Idle Power Consumption in Office Spaces Saves U.S. Navy in Energy Costs (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2014-04-01

    As part of a two-year project to demonstrate energy efficiency measures, renewable energy generation, and energy systems integration, the National Renewable Energy Laboratory (NREL) has identified advanced plug load controls as a promising technology for reducing energy use and related costs in the U.S. Navy's Naval Facilities Engineering Command (NAVFAC) office spaces.

  11. Navy Prototype Optical Interferometer Imaging of Line Emission Regions of beta Lyrae Using Differential Phase Referencing

    E-Print Network [OSTI]

    Schmitt, H R; Tycner, C; Armstrong, J T; Zavala, R T; Benson, J A; Gilbreath, G C; Hindsley, R B; Hutter, D J; Johnston, K J; Jorgensen, A M; Mozurkewich, D

    2008-01-01

    We present the results of an experiment to image the interacting binary star beta Lyrae with data from the Navy Prototype Optical Interferometer (NPOI), using a differential phase technique to correct for the effects of the instrument and atmosphere on the interferometer phases. We take advantage of the fact that the visual primary of beta Lyrae and the visibility calibrator we used are both nearly unresolved and nearly centrally symmetric, and consequently have interferometric phases near zero. We used this property to detect and correct for the effects of the instrument and atmosphere on the phases of beta Lyrae and to obtain differential phases in the channel containing the Halpha emission line. Combining the Halpha-channel phases with information about the line strength, we recovered complex visibilities and imaged the Halpha emission using standard radio interferometry methods. We find that the results from our differential phase technique are consistent with those obtained from a more-standard analysis ...

  12. Diameters of delta Cephei and eta Aquilae Measured with the Navy Prototype Optical Interferometer

    E-Print Network [OSTI]

    J. T. Armstrong; Tyler E. Nordgren; M. E. Germain; Arsen R. Hajian; R. B. Hindsley; C. A. Hummel; D. Mozurkewich; R. N. Thessin

    2000-09-25

    We have measured the diameters of the Cepheid variables delta Cephei (18 nights) and eta Aquilae (11 nights) with the Navy Prototype Optical Interferometer. The primary results of these observations are the mean angular diameters of these Cepheids: 1.520 +/- 0.014 milliseconds of arc (mas) for delta Cep and 1.69 +/- 0.04 mas for eta Aql. We also report limb-darkened diameters for the check stars in this program: for beta Lac, theta(LD) = 1.909 +/- 0.011 mas, and for 12 Aql, theta(LD) = 2.418 +/- 0.010 mas. When combined with radius estimates from period-radius relations in the literature, the Cepheid angular diameters suggest distances slightly smaller than, but still consistent with, the Hipparcos distances. Pulsations are weakly detected at a level of about 1.5 sigma to 2 sigma for both Cepheids.

  13. spe438-20 page 1 Garrison, N.J., Busby, C.J., Gans, P.B., Putirka, K., and Wagner, D.L., 2008, A mantle plume beneath California? The mid-Miocene Lovejoy flood basalt, northern

    E-Print Network [OSTI]

    Busby, Cathy

    spe438-20 page 1 1 Garrison, N.J., Busby, C.J., Gans, P.B., Putirka, K., and Wagner, D.L., 2008-Miocene Lovejoy flood basalt, northern California Noah J. Garrison Cathy J. Busby Phillip B. Gans Department basalt. #12;2 Garrison et al. spe438-20 page 2 INTRODUCTION Mid-Miocene volcanism in the northern Sierra

  14. Procedure for Koehler Digital Constant Temperature Viscosity Bath This unit is designed to perform kinematic viscosity tests using glass capillary viscometers, for this lab

    E-Print Network [OSTI]

    Saskatchewan, University of

    Standard D-446. Viscosity Bath: The viscosity bath should be filled 5 cm (2") from the top of the bath tank - ASTM D446 - ASTM D2170 - IP 71 - IP 319 - ISO 3140 - DIN 51550 - FTM 791-305 Over Temperature

  15. EXPT. 3101 STANDARD NAVY YIELD TEST PLANTING DATE 6/2/2003 ENTRY PEDIGREE, NAME NO. YIELD SEED DAYS TO DAYS TO LODGING HEIGHT DES.

    E-Print Network [OSTI]

    EXPT. 3101 STANDARD NAVY YIELD TEST PLANTING DATE 6/2/2003 ENTRY PEDIGREE, NAME NO. YIELD SEED DAYS.0 47.5 5.0 N00727 HURON/N94080//I92919 11 33.6 17.6 51 100.0 2.0 49.5 4.5 I02538 SCEPTER,GENTEC,NAVY 70.8 5.0 I01724 FRIGATE(NAVY) 69 32.8 17.8 49 99.4 2.0 50.6 4.0 N00762 VISTA/MACKINAC//N94080 17 32.6 16

  16. EXPT. 2101 STANDARD NAVY YIELD TEST PLANTING DATE 6/8/2002 ENTRY PEDIGREE, NAME NO. YIELD CWT SEED DAYS TO DAYS TO LODGING HEIGHT DES.

    E-Print Network [OSTI]

    EXPT. 2101 STANDARD NAVY YIELD TEST PLANTING DATE 6/8/2002 ENTRY PEDIGREE, NAME NO. YIELD CWT SEED.0 4.9 I01721 ROG 331(NAVY) 78 34.7 19.3 45.5 97.6 3.0 42.0 3.5 N00811 C-20//VISTA/MACKINAC 45 34.7 24.2 48.5 99.9 2.5 48.0 4.0 N00723 B96617/HURON 21 34.6 19.9 48.0 97.0 3.0 44.0 4.5 I02538 SCEPTER,GENTEC,NAVY

  17. EXPT. 4101 STANDARD NAVY YIELD TEST PLANTING DATE 6/2/2004 ENTRY PEDIGREE, NAME NO. YIELD SEED DAYS TO DAYS TO LODGING HEIGHT DES.

    E-Print Network [OSTI]

    EXPT. 4101 STANDARD NAVY YIELD TEST PLANTING DATE 6/2/2004 ENTRY PEDIGREE, NAME NO. YIELD SEED DAYS (GENTEC,NAVY) 49 20.4 24.0 44.0 93.0 2.0 46.6 4.1 N00762 VISTA/MACKINAC//N94080 11 20.2 17.5 47.0 94.0 1.0 46.4 4.6 I03351 COMET (ISB,NAVY) 46 19.8 26.7 44.0 90.0 1.5 46.0 4.6 I91112 SCHOONER (NOVARTIS) 47 19

  18. EXPERIMENT 8101 STANDARD NAVY YIELD TEST DATE 06/03/08 ENTRY NAMES NO. YIELD CWT 100 SEED DAYS TO DAYS TO LODGING HEIGHT DES.

    E-Print Network [OSTI]

    EXPERIMENT 8101 STANDARD NAVY YIELD TEST DATE 06/03/08 ENTRY NAMES NO. YIELD CWT 100 SEED DAYS(NAVY) 26 17.2 22.8 46.1 91.4 2.0 50.2 4.0 I06271 ND012103, AVALANCHE 25 17.2 22.8 45.0 92.5 1.5 51.8 5.0 N06701 N00838/N00809//N00729 6 17.0 21.3 45.9 92.5 1.0 48.3 4.1 I08903 LIGHTNING NAVY 24 16.7 20

  19. EXPERIMENT 6101 STANDARD NAVY YIELD TEST DATE 06/06/06 ENTRY NAMES NO. YIELD CWT 100 SEED DAYS TO DAYS TO LODGING HEIGHT DES.

    E-Print Network [OSTI]

    EXPERIMENT 6101 STANDARD NAVY YIELD TEST DATE 06/06/06 ENTRY NAMES NO. YIELD CWT 100 SEED DAYS.9 50.0 4.1 #12;EXPERIMENT 6101 STANDARD NAVY YIELD TEST DATE 06/06/06 ENTRY NAMES NO. YIELD CWT 100*6/CN49-242 NAVY GENTEC, VISTA 3 25.8 17.9 42.7 88.8 2.0 50.0 3.9 N05305 N00838/B98304//N00792 44 25

  20. Environmental assessment for the granting of US Navy easements near Pearl Harbor and Waikele Gulch Oahu, Hawaii to Hawaiian Electric Company, Inc. Final report

    SciTech Connect (OSTI)

    Luersen, P.; Wiley, M.; Hart, J.; Kanehiro, C.; Soloway, M.

    1994-09-23

    This document was prepared pursuant to the National Environmental Policy Act (NEPA: and Navy regulations (OPNAVINST 5090.1B)). The document addresses environmental impacts from the proposed granting of three easements to the Hawaiian Electric Company, Inc. (HECO) for the use of Navy property near Waikele Gulch, Pearl City and the Waiau Power Plant. HECO`s proposed Waiau-CIP, Part 2, Project requires installation, operation, and maintenance of steel transmission line poles and associated equipment on three Navy parcels crossed by the 7.8 mile project. Health risks from exposure to the electric and magnetic fields of 138-kV transmission lines are discussed.

  1. EXPERIMENT 7101 STANDARD NAVY YIELD TEST PLANTING DATE 05/31/07 ENTRY NAMES NO. YIELD CWT 100 SEED DAYS TO DAYS TO LODGING HEIGHT DES.

    E-Print Network [OSTI]

    EXPERIMENT 7101 STANDARD NAVY YIELD TEST PLANTING DATE 05/31/07 ENTRY NAMES NO. YIELD CWT 100 SEED49-242 NAVY GENTEC, VISTA 23 28.3 18.8 51.4 97.4 3.0 47.6 3.5 N01453 B98301/N97772 16 28.0 17.6 4900838/B98304//N00792 24 23.9 19.0 52.5 99.4 1.6 52.4 4.0 #12;EXPERIMENT 7101 STANDARD NAVY YIELD TEST

  2. Measurement of surface tension and viscosity by open capillary techniques

    DOE Patents [OSTI]

    Rye,Robert R. (Albuquerque, NM), Yost,Frederick G. (Cedar Crest, NM)

    1998-01-01

    An open-channel capillary is provided, having preferably a v-shaped groove in a flat wettable surface. The groove has timing marks and a source marker in which the specimen to be tested is deposited. The time of passage between the timing marks is recorded, and the ratio of surface tension .gamma. to viscosity .mu. is determined from the equation given below: ##EQU1## where h.sub.0 is the groove depth, .alpha. is the groove angle, .theta. is the liquid/solid contact angle, and t is the flow time. It has been shown by the

  3. EIS-0259: Disposal of Decommissioned, Defueled Cruiser, Ohio Class and Los Angeles Class Naval Reactor Plants, Hanford Site, Richland (adopted from Navy)

    Office of Energy Efficiency and Renewable Energy (EERE)

    This EIS analyzes the alternate ways for disposing of decommissioned, defieled reactor compliments from U.S. Navy nuclear-powered cruisers, (Bainbridge, Truxtun, Long Beach, California Class and Virginia Class) and Los Angeles Class, and Ohio Class submarines.

  4. "we have . . . kept the negroes' goodwill and sent them away": black sailors, white dominion in the new navy, 1893-1942 

    E-Print Network [OSTI]

    Williams, Charles Hughes

    2009-05-15

    Between 1893 and 1920 the rising tide of racial antagonism and discrimination that swept America fundamentally altered racial relations in the United States Navy. African Americans, an integral part of the enlisted force ...

  5. Fitting and re-fitting : adaptive re-use proposal for building 114 in the Charlestown Navy Yard as a bio-tech research facility

    E-Print Network [OSTI]

    Shay, Stephen D. (Stephen Dar), 1969-

    1999-01-01

    n the 1988 Master Plan of the Charlestown Navy Yard, Building 114 was originally planned as a boat repair and maintenance facility with offices. It appeared to be a logical proposal which would revive it to its previous ...

  6. A review of "The Navy and Government in Early Modern France 1572-1661." by Alan James 

    E-Print Network [OSTI]

    Edward M. Furgol

    2005-01-01

    of Huguenot financing through privateering and to stifle the consequences of the Protestants? involvement with their co- religionists? attacks on Hapsburg Spain, attacks which could have entangled France in unintended foreign wars. The second instance deals..., and not the naval power of French?s traditional enemy, Habsburg Spain, that spurred efforts to increase the number of sailing warships, to create national shipbuilding yards and to develop port facilities for the navy. Following the successful siege...

  7. Demonstration of base catalyzed decomposition process, Navy Public Works Center, Guam, Mariana Islands

    SciTech Connect (OSTI)

    Schmidt, A.J.; Freeman, H.D.; Brown, M.D.; Zacher, A.H.; Neuenschwander, G.N.; Wilcox, W.A.; Gano, S.R.; Kim, B.C.; Gavaskar, A.R.

    1996-02-01

    Base Catalyzed Decomposition (BCD) is a chemical dehalogenation process designed for treating soils and other substrate contaminated with polychlorinated biphenyls (PCB), pesticides, dioxins, furans, and other hazardous organic substances. PCBs are heavy organic liquids once widely used in industry as lubricants, heat transfer oils, and transformer dielectric fluids. In 1976, production was banned when PCBs were recognized as carcinogenic substances. It was estimated that significant quantities (one billion tons) of U.S. soils, including areas on U.S. military bases outside the country, were contaminated by PCB leaks and spills, and cleanup activities began. The BCD technology was developed in response to these activities. This report details the evolution of the process, from inception to deployment in Guam, and describes the process and system components provided to the Navy to meet the remediation requirements. The report is divided into several sections to cover the range of development and demonstration activities. Section 2.0 gives an overview of the project history. Section 3.0 describes the process chemistry and remediation steps involved. Section 4.0 provides a detailed description of each component and specific development activities. Section 5.0 details the testing and deployment operations and provides the results of the individual demonstration campaigns. Section 6.0 gives an economic assessment of the process. Section 7.0 presents the conclusions and recommendations form this project. The appendices contain equipment and instrument lists, equipment drawings, and detailed run and analytical data.

  8. Asymmetric Surface Brightness Distribution of Altair Observed with the Navy Prototype Optical Interferometer

    E-Print Network [OSTI]

    Ohishi, N; Hutter, D J; Ohishi, Naoko; Nordgren, Tyler E.; Hutter, Donald J.

    2004-01-01

    An asymmetric surface brightness distribution of the rapidly rotating A7IV-V star, Altair, has been measured by the Navy Prototype Optical Interferometer (NPOI). The observations were recorded simultaneously using a triangle of three long baselines of 30m, 37m, and 64m, on 19 spectral channels, covering the wavelength range of 520nm to 850nm. The outstanding characteristics of these observations are (a) high resolution with the minimum fringe spacing of 1.7mas, easily resolving the 3-milliarcsecond (mas) stellar disk, and (b) the measurement of closure phase which is a sensitive indicator to the asymmetry of the brightness distribution of the source. Uniform disk diameters fit to the measured squared visibility amplitudes confirms the Altair's oblate shape due to its rapid rotation. The measured observables of Altair showed two features which are inconsistent with both the uniform-disk and limb-darkened disk models, while the measured observable of the comparison star, Vega, are consistent with the limb-darke...

  9. SPE Western Regional Meeting

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustmentsShirleyEnergyTher i nAandSummaryDIST OFMEAG, Dalton System:Energy 3 at the MunicipalHydrates

  10. Coalescence of Low-Viscosity Fluids in Air

    E-Print Network [OSTI]

    Sarah C. Case

    2008-09-09

    An electrical method is used to study the early stages of coalescence of two low-viscosity drops. A drop of aqueous NaCl solution is suspended in air above a second drop of the same solution which is grown until the drops touch. At that point a rapidly widening bridge forms between them. By measuring the resistance and capacitance of the system during this coalescence event, one can obtain information about the time dependence of the characteristic bridge radius and its characteristic height. At early times, a new asymptotic regime is observed that is inconsistent with previous theoretical predictions. The measurements at several drop radii and approach velocities are consistent with a model in which the two liquids coalesce with a slightly deformed interface.

  11. Shear viscosity to entropy density ratio in nuclear multifragmentation

    E-Print Network [OSTI]

    Subrata Pal

    2010-05-03

    Nuclear multifragmentation in intermediate energy heavy ion collisions has long been associated with liquid-gas phase transition. We calculate the shear viscosity to entropy density ratio eta/s for an equilibrated system of nucleons and fragments produced in multifragmentation within an extended statistical multifragmentation model. The temperature dependence of eta/s exhibits surprisingly similar behavior as that for water. In the coexistence phase of fragments and light particles, the ratio eta/s reaches a minimum of comparable depth as that for water in the vicinity of the critical temperature for liquid-gas phase transition. The effects of freeze-out volume and surface symmetry energy on eta/s in multifragmentation are studied.

  12. Cavitation from bulk viscosity in neutron stars and quark stars

    E-Print Network [OSTI]

    Jes Madsen

    2009-09-30

    The bulk viscosity in quark matter is sufficiently high to reduce the effective pressure below the corresponding vapor pressure during density perturbations in neutron stars and strange stars. This leads to mechanical instability where the quark matter breaks apart into fragments comparable to cavitation scenarios discussed for ultra-relativistic heavy-ion collisions. Similar phenomena may take place in kaon-condensed stellar cores. Possible applications to compact star phenomenology include a new mechanism for damping oscillations and instabilities, triggering of phase transitions, changes in gravitational wave signatures of binary star inspiral, and astrophysical formation of strangelets. At a more fundamental level it points to the possible inadequacy of a hydrodynamical treatment of these processes in compact stars.

  13. Cavitation from bulk viscosity in neutron stars and strange stars

    E-Print Network [OSTI]

    Madsen, Jes

    2009-01-01

    The bulk viscosity in quark matter is sufficiently high to reduce the effective pressure below the corresponding vapor pressure during density perturbations in neutron stars and strange stars. This leads to mechanical instability where the quark matter breaks apart into fragments comparable to cavitation scenarios discussed for ultra-relativistic heavy-ion collisions. Similar phenomena may take place in kaon-condensed stellar cores. Possible applications to compact star phenomenology include a new mechanism for damping oscillations and instabilities, triggering of phase transitions, changes in gravitational wave signatures of binary star inspiral, and astrophysical formation of strangelets. At a more fundamental level it points to the possible inadequacy of a hydrodynamical treatment of these processes in compact stars.

  14. Viscosity of the QGP from a virial expansion

    SciTech Connect (OSTI)

    Mattiello, S.

    2012-06-15

    In this work we calculate the shear viscosity {eta} in the quark-gluon plasma within a virial expansion approach with particular interest in the ratio of {eta} to the entropy density s, i.e. {eta}/s. We derive a realistic equation of state using a virial expansion approach which allows us to include the interactions between the partons in the deconfined phase. From the interaction we directly extract the effective coupling {alpha}{sub V} for the determination of {eta}. Our results for {eta}/s show a minimum near to T{sub c} very close with the lowest bound and, furthermore, in line with the experimental point from RHIC as well as with the lattice calculations.

  15. Method of preparing a high solids content, low viscosity ceramic slurry

    DOE Patents [OSTI]

    Tiegs, T.N.; Wittmer, D.E.

    1995-10-10

    A method for producing a high solids content, low viscosity ceramic slurry composition comprises turbomilling a dispersion of a ceramic powder in a liquid to form a slurry having a viscosity less than 100 centipoise and a solids content equal to or greater than 48 volume percent.

  16. Experimental Investigation on High-pressure, High-temperature Viscosity of Gas Mixtures 

    E-Print Network [OSTI]

    Davani, Ehsan

    2012-02-14

    was used to measure the viscosity of mixtures of nitrogen and methane, and mixtures of CO2 and methane at a pressure range of 5,000 to 25,000 psi, and a temperature range of 100 to 360 degrees F. The viscosity of mixtures of nitrogen and methane...

  17. A New Reference Correlation for the Viscosity of Methanol Hong Wei Xiang,a...

    E-Print Network [OSTI]

    Magee, Joseph W.

    A New Reference Correlation for the Viscosity of Methanol Hong Wei Xiang,a... Arno Laesecke for the viscosity of methanol is presented that is valid over the entire fluid region, including vapor, liquid coefficient is developed from experimental data and applied to methanol. The high-density contribution

  18. Bending Creep Test to Measure the Viscosity of Porous Materials during Sintering

    E-Print Network [OSTI]

    Messing, Gary L.

    Bending Creep Test to Measure the Viscosity of Porous Materials during Sintering Sang-Ho Lee creep test is proposed for measuring the change in viscosity of a porous material during densification be measured. Experiments with porous Y2O3-stabilized ZrO2 beams were used to illustrate the bending creep test

  19. Viscosity and reptation time in polystyrene-benzene semidilute solutions M. Adam and M. Delsanti

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    L-523 Viscosity and reptation time in polystyrene-benzene semidilute solutions M. Adam and M viscosity ~ and reptation time TR in semidilute polystyrene-benzene solutions. We have obtained, our aim is to study the viscoelastic properties of polystyrene-benzene systems in a well defined

  20. Measurement of solubility, viscosity, and density of R-410A refrigerant/lubricant mixtures

    SciTech Connect (OSTI)

    Cavestri, R.C.; Schafer, W.R.

    2000-07-01

    Measurements of the refrigerant vapor/liquid lubricant equilibrium viscosity reduction of four polyolester lubricants, viscosity grades 32 and 68 ISO VG, with the refrigerant R-410A were taken between {minus}13 F and 257 F and up to 700 psia. A high and low miscibility grade polyolester was analyzed for each viscosity. The viscosity, density, and composition of the solubilized gas mixture in solution with the lubricant was obtained with constant gas vapor composition in the viscometer head space. This refrigerant has a very small temperature glide but is considered a zeotropic blend nonetheless. The fractionation data presented were obtained from individual isothermal measurements. The isotherm for each temperature detailed the composition of the equilibrium gas fractionation of R-32 and R-125 in the lubricant, mixed vapor pressure, concentration of the total mixed blend (percent by weight) in the lubricant, and viscosity in centipoise (cP) and centistokes (cSt).

  1. Advanced cogeneration and absorption chillers potential for service to Navy bases. Final report

    SciTech Connect (OSTI)

    Andrews, J.W.; Butcher, T.A.; Leigh, R.W.; McDonald, R.J.; Pierce, B.L.

    1996-04-01

    The US military uses millions of Btu`s of thermal energy to heat, cool and deliver process thermal energy to buildings on military bases, much of which is transmitted through a pipeline system incorporating thousands of miles of pipe. Much of this pipeline system is in disrepair and is nearing the end of its useful life, and the boilers which supply it are old and often inefficient. In 1993, Brookhaven National Laboratory (BNL) proposed to SERDP a three-year effort to develop advanced systems of coupled diesel cogenerators and absorption chillers which would be particularly useful in providing a continuation of the services now provided by increasingly antiquated district systems. In mid-February, 1995, BNL learned that all subsequent funding for our program had been canceled. BNL staff continued to develop the Program Plan and to adhere to the requirements of the Execution Plan, but began to look for ways in which the work could be made relevant to Navy and DoD energy needs even without the extensive development plan formerly envisioned. The entire program was therefore re-oriented to look for ways in which small scale cogeneration and absorption chilling technologies, available through procurement rather than development, could provide some solutions to the problem of deteriorated district heating systems. The result is, we believe, a striking new approach to the provision of building services on military bases: in many cases, serious study should be made of the possibility that the old district heating system should be removed or abandoned, and small-scale cogenerators and absorption chillers should be installed in each building. In the remainder of this Summary, we develop the rationale behind this concept and summarize our findings concerning the conditions under which this course of action would be advisable and the economic benefits which will accrue if it is followed. The details are developed in the succeeding sections of the report.

  2. Major sources to waivers - lessons learned and $ saved at two U.S. Navy facilities

    SciTech Connect (OSTI)

    Klitsch, M. [Naval Surface Warfare Center, West Bethesda, MD (United States). Carderock Div.

    1997-12-31

    Naval Surface Warfare Center Carderock Division (NSWCCD) manages 17 US Navy research and development (R and D) facilities across the country. These include two facilities in Maryland -- one in Annapolis and the other in West Bethesda which is better known as Carderock. NO{sub x} is the only air emission which exceeds a threshold limit at both properties. The potential to emit NO{sub x} is 72 tpy for Annapolis and 51 tpy for Carderock. The facilities are in different counties but each county has a trigger limit for NO{sub x} of 25 tpy making both facilities major sources. In preparation for the Title V permit applications to the state of Maryland, Carderock budgeted $150,000 in fiscal year 1996 to have a contractor conduct air emission inventories and prepare the Title V permits for both Carderock and Annapolis. However, the Carderock Air Program Manager did not pursue a contractor to perform the work but personally conducted the air emission inventory for both Annapolis and Carderock. Noticing a large difference between the potential-to-emit and the actual emissions of NO{sub x}, the Air Program Manager began negotiations with the Maryland Department of the Environment (MDE) to waive the requirement for the Title V permit application. MDE responded in December 1996 that if the facility`s actual emissions would not exceed 50% of any of the threshold limits during any 12 month period, then a letter of understanding stating such should be submitted to MDE. This letter of understanding would be recognized by the US EPA and MDE and would act as a waiver to the Title V permit applicability up to July 31, 1998. Carderock and Annapolis meet this requirement and letters of understanding were drafted and sent to MDE in January 1997.

  3. Asymmetric Surface Brightness Distribution of Altair Observed with the Navy Prototype Optical Interferometer

    E-Print Network [OSTI]

    Naoko Ohishi; Tyler E. Nordgren; Donald J. Hutter

    2004-05-16

    An asymmetric surface brightness distribution of the rapidly rotating A7IV-V star, Altair, has been measured by the Navy Prototype Optical Interferometer (NPOI). The observations were recorded simultaneously using a triangle of three long baselines of 30m, 37m, and 64m, on 19 spectral channels, covering the wavelength range of 520nm to 850nm. The outstanding characteristics of these observations are (a) high resolution with the minimum fringe spacing of 1.7mas, easily resolving the 3-milliarcsecond (mas) stellar disk, and (b) the measurement of closure phase which is a sensitive indicator to the asymmetry of the brightness distribution of the source. Uniform disk diameters fit to the measured squared visibility amplitudes confirms the Altair's oblate shape due to its rapid rotation. The measured observables of Altair showed two features which are inconsistent with both the uniform-disk and limb-darkened disk models, while the measured observable of the comparison star, Vega, are consistent with the limb-darkened disk model. The first feature is that measured squared visibility amplitudes at the first minimum do not reach 0.0 but rather remain at about 0.02, indicating the existence of a small bright region on the stellar disk. The other is that the measured closure phases show non-zero/180 degrees at all spectral channels, which requires an asymmetric surface brightness distribution. We fitted the measured observables to a model with a bright spot on a limb-darkened disk and found the observations are well reproduced by a bright spot, which has relative intensity of 4.7%, on a 3.38 mas limb-darkened stellar disk. Rapid rotation of Altair indicates that this bright region is a pole, which is brighter than other part of the star owing to gravity darkening.

  4. Navy Prototype Optical Interferometer Imaging of Line Emission Regions of beta Lyrae Using Differential Phase Referencing

    E-Print Network [OSTI]

    H. R. Schmitt; T. A. Pauls; C. Tycner; J. T. Armstrong; R. T. Zavala; J. A. Benson; G. C. Gilbreath; R. B. Hindsley; D. J. Hutter; K. J. Johnston; A. M. Jorgensen; D. Mozurkewich

    2008-01-30

    We present the results of an experiment to image the interacting binary star beta Lyrae with data from the Navy Prototype Optical Interferometer (NPOI), using a differential phase technique to correct for the effects of the instrument and atmosphere on the interferometer phases. We take advantage of the fact that the visual primary of beta Lyrae and the visibility calibrator we used are both nearly unresolved and nearly centrally symmetric, and consequently have interferometric phases near zero. We used this property to detect and correct for the effects of the instrument and atmosphere on the phases of beta Lyrae and to obtain differential phases in the channel containing the Halpha emission line. Combining the Halpha-channel phases with information about the line strength, we recovered complex visibilities and imaged the Halpha emission using standard radio interferometry methods. We find that the results from our differential phase technique are consistent with those obtained from a more-standard analysis using squared visibilities (V^2's). Our images show the position of the Halpha emitting regions relative to the continuum photocenter as a function of orbital phase and indicate that the major axis of the orbit is oriented along p.a.=248.8+/-1.7 deg. The orbit is smaller than previously predicted, a discrepancy that can be alleviated if we assume that the system is at a larger distance from us, or that the contribution of the stellar continuum to the Halpha channel is larger than estimated. Finally, we also detected a differential phase signal in the channels containing HeI emission lines at 587.6 and 706.5nm, with orbital behavior different from that of the Halpha, indicating that it originates from a different part of this interacting system.

  5. U. S. Navy shipboard-generated plastic-waste pilot-recycling program. Research and development report, Apr 90-Jan 91

    SciTech Connect (OSTI)

    Middleton, L.B.; Huntley, J.Y.; Burgiel, J.J.

    1991-03-01

    From April 1990 through January 1991, the feasibility of recycling Navy shipboard-generated plastic wastes was explored. Normally, plastic wastes are source separated aboard Navy ships and retained for shoreside disposal in accordance with new fleet requirements implementing MARPOL Annex V that prohibits the discharge of plastics at sea. Over 23,000 pounds of shipboard plastic wastes from USS Lexington (AVT 16) and ships from the Norfolk Naval Base were recycled into park benches, picnic tables and carstops that have been distributed back to the Navy bases for use. Navy shipboard plastics must undergo sorting prior to recycling because Navy plastic waste contains large quantities of composite plastic items (e.g., plastic/paper) that are not easily recyclable. Recycling food-contaminated plastics is not practical due to sanitation problems encountered during handling. However, certain items have good resale value if separated by resin type and color (e.g., sonobuoy casings, hard plastic containers, packaging films). Education, feedback, and command support for shipboard recycling programs are required to ensure maximum participation and to minimize contamination with non-plastic items. Specially marked plastics only containers increase convenience and effectiveness of the recycling program.

  6. Theory comparison and numerical benchmarking on neoclassical toroidal viscosity torque

    SciTech Connect (OSTI)

    Wang, Zhirui; Park, Jong-Kyu; Logan, Nikolas; Kim, Kimin; Menard, Jonathan E. [Princeton Plasma Physics Laboratory, Princeton, New Jersey 08543 (United States)] [Princeton Plasma Physics Laboratory, Princeton, New Jersey 08543 (United States); Liu, Yueqiang [Euratom/CCFE Association, Culham Science Centre, Abingdon OX14 3DB (United Kingdom)] [Euratom/CCFE Association, Culham Science Centre, Abingdon OX14 3DB (United Kingdom)

    2014-04-15

    Systematic comparison and numerical benchmarking have been successfully carried out among three different approaches of neoclassical toroidal viscosity (NTV) theory and the corresponding codes: IPEC-PENT is developed based on the combined NTV theory but without geometric simplifications [Park et al., Phys. Rev. Lett. 102, 065002 (2009)]; MARS-Q includes smoothly connected NTV formula [Shaing et al., Nucl. Fusion 50, 025022 (2010)] based on Shaing's analytic formulation in various collisionality regimes; MARS-K, originally computing the drift kinetic energy, is upgraded to compute the NTV torque based on the equivalence between drift kinetic energy and NTV torque [J.-K. Park, Phys. Plasma 18, 110702 (2011)]. The derivation and numerical results both indicate that the imaginary part of drift kinetic energy computed by MARS-K is equivalent to the NTV torque in IPEC-PENT. In the benchmark of precession resonance between MARS-Q and MARS-K/IPEC-PENT, the agreement and correlation between the connected NTV formula and the combined NTV theory in different collisionality regimes are shown for the first time. Additionally, both IPEC-PENT and MARS-K indicate the importance of the bounce harmonic resonance which can greatly enhance the NTV torque when E×B drift frequency reaches the bounce resonance condition.

  7. Viscosity index improver-dispersant additive useful in oil compositions

    SciTech Connect (OSTI)

    Gardiner, J.B.; Dick, M.N.

    1988-10-25

    A process comprising grafting in the substantial absence of solvent a hydrocarbon polymer of C/sub 2/ to C/sub 28/ olefin, the polymer having a number average molecular weight in the range of about 5,000 to 500,000 with an unsaturated material selected from the group consisting of: (A) ethylenically unsaturated C/sub 3/ to C/sub 10/ carboxylic acid having 1 to 2 carboxylic acid groups or an anhydride group, and (B) nitrogen-containing ethylenically unsaturated monomers containing 6 to 30 carbon atoms and 1 to 4 nitrogen atoms, in the presence of a free radical initiator and a chain stopping agent comprising at least one member selected from the group consisting of alphatic mercaptans having 4 to 24 carbon atoms, deithyl hydroxyl amine cumene and phenols, the grafting being conducted in a manner and under conditions sufficient to form a substantially oil soluble graft copolymer useful as a viscosity index improver-dispersant additive for lubricating oil compositions.

  8. Hall viscosity from elastic gauge fields in Dirac crystals

    E-Print Network [OSTI]

    Alberto Cortijo; Yago Ferreirós; Karl Landsteiner; María A. H. Vozmediano

    2015-06-16

    The combination of Dirac physics and elasticity has been explored at length in graphene where the so--called "elastic gauge fields" have given rise to an entire new field of research and applications: Straintronics. The fact that these elastic fields couple to fermions as the electromagnetic field, implies that many electromagnetic responses will have elastic counterparts not explored before. In this work we will first show that the presence of elastic gauge fields will be the rule rather than the exception in most of the topologically non--trivial materials in two and three dimensions. In particular we will extract the elastic gauge fields associated to the recently observed Weyl semimetals, the "three dimensional graphene". As it is known, quantum electrodynamics suffers from the chiral anomaly whose consequences have been recently explored in matter systems. We will show that, associated to the physics of the anomalies, and as a counterpart of the Hall conductivity, elastic materials will have a Hall viscosity in two and three dimensions with a coefficient orders of magnitude bigger than the previously studied response. The magnitude and generality of the new effect will greatly improve the chances for the experimental observation of this topological, non dissipative response.

  9. Effective shear viscosity and dynamics of suspensions of micro-swimmers at moderate concentrations

    SciTech Connect (OSTI)

    Constantin, Lipnikov [Los Alamos National Laboratory; Gyrya, V [PENNSYLVANIA STATE UNIV.; Aronson, I [ANL; Berlyand, L [PENNSYLVANIA STATE UNIV.

    2009-01-01

    Recently, there have been a number of experimental studies suggesting that a suspension of self-propelled bacteria (microswimmers in general) may have an effective viscosity significantly smaller than the viscosity of the ambient fluid. This is in sharp contrast with suspensions of hard passive inclusions, whose presence always increases the viscosity. Here we present a 2D model for a suspension of microswimmers in a fluid and analyze it analytically in the dilute regime (no swimmer-swimmer interactions) and numerically using a Mimetic Finite Difference discretization. Our analysis shows that in the dilute regime the effective shear viscosity is not affected by self-propulsion. But at the moderate concentrations (due to swimmer-swimmer interactions) the effective viscosity decreases linearly as a function of the propulsion strength of the swimmers. These findings prove that (i) a physically observable decrease of viscosity for a suspension of self-propelled bacteria can be explained purely by hydrodynamic interactions and (ii) self-propulsion and interaction of swimmers are both essential to the reduction of the effective shear viscosity. We performed a number of numerical experiments analyzing the dynamics of swimmers resulting from pairwise interactions. The numerical results agree with the physically observed phenomena (e.g., attraction of swimmer to swimmer and swimmer to the wall). This is viewed as an additional validation of the model and the numerical scheme.

  10. Effect of Viscosity on the Microformability of Bulk Amorphous Alloy in Supercooled Liquid Region

    SciTech Connect (OSTI)

    Cheng Ming; Zhang Shihong; Wang Ruixue

    2010-06-15

    Previously published results have shown that viscosity greatly influences on the deformation behavior of the bulk amorphous alloy in supercooled liquid region during microforming process. And viscosity is proved to be a component of the evaluation index which indicating microformability. Based on the fluid flow theory and assumptions, bulk amorphous alloy can be regarded as the viscous materials with a certain viscosity. It is helpful to understand how the viscosity plays an important role in viscous materials with various viscosities by numerical simulation on the process. Analysis is carried out by linear state equation in FEM with other three materials, water, lubricant oil and polymer melt, whose viscosities are different obviously. The depths of the materials flow into the U-shaped groove during the microimprinting process are compared in this paper. The result shows that the deformation is quite different when surface tension effect is not considered in the case. With the lowest viscosity, water can reach the bottom of micro groove in a very short time. Lubricant oil and polymer melt slower than it. Moreover bulk amorphous alloys in supercooled liquid state just flow into the groove slightly. Among the alloys of different systems including Pd-, Mg- and Zr-based alloy, Pd-based alloy ranks largest in the depth. Mg-based alloy is the second. And Zr-based alloy is the third. Further more the rank order of the viscosities of the alloys is Pd-, Mg- and Zr-based. It agrees well with the results of calculation. Therefore viscosity plays an important role in the microforming of the bulk amorphous alloy in the supercooled liquid state.

  11. Copyright 1999, Society of Petroleum Engineers Inc. This paper was prepared for presentation at the 1999 SPE Annual Technical Conference and

    E-Print Network [OSTI]

    Schechter, David S.

    psia confining pressure. Based on the experimental results, an equation to determine the critical water properties, such as wettability, porosity, matrix area and water viscosity. Two field cases using this scale in the Spraberry Trend Area. The findings of this study could be useful to solve the problem of early water

  12. 1 S.R. REEVES, D.G. HILL, R.L. TINER, P.A. BASTIAN, M.W. CONWAY & S. MOHAGHEGH SPE 55627 Copyright 1999, Society of Petroleum Engineers Inc.

    E-Print Network [OSTI]

    Mohaghegh, Shahab

    1999, Society of Petroleum Engineers Inc. This paper was prepared for presentation at the 1999 SPE by the author(s). Contents of the paper, as presented, have not been reviewed by the Society of Petroleum reflect any position of the Society of Petroleum Engineers, its officers, or members. Papers presented

  13. spe433-02 page 27 Ernst, W.G., Hacker, B.R., and Liou, J.G., 2007, Petrotectonics of ultrahigh-pressure crustal and upper-mantle rocks--Implications for Phanerozoic collisional

    E-Print Network [OSTI]

    Hacker, Bradley R.

    spe433-02 page 27 27 Ernst, W.G., Hacker, B.R., and Liou, J.G., 2007, Petrotectonics of ultrahigh of Geological and Environmental Sciences, Stanford University, Stanford, California 94305-2115, USA B.R. Hacker

  14. Experimental Investigation of the Effective Foam Viscosity in Unsaturated Porous Media

    SciTech Connect (OSTI)

    Zhang, Z. F.; Zhong, Lirong; White, Mark D.; Szecsody, James E.

    2012-11-01

    Foam has the potential to effectively carry and distribute either aqueous or gaseous amendments to the deep vadose zone for contaminant remediation. However, the transport of foam in porous media is complicated because flow characteristics such as the effective viscosity are affected not only by foam properties but also by the sediment properties and flow conditions. We determined the average effective foam viscosity via a series of laboratory experiments and found that the effective foam viscosity increased with the liquid fraction in foam, the injection rate, and sediment permeability. These impacts are quantified with an empirical expression, which is further demonstrated with data from literature. The results show that the liquid fraction in foam and sediment permeability are two primary factors affecting effective foam viscosity. These results suggest that, when foam is used in deep vadose zone remediation, foam flow will not suffer from gravitational drainage and can distribute amendments uniformly in heterogeneous sediments.

  15. Effects of petroleum distillate on viscosity, density and surface tension of intermediate and heavy crude oils 

    E-Print Network [OSTI]

    Abdullayev, Azer

    2009-06-02

    Experimental and analytical studies have been carried out to better understand the effects of additives on viscosity, density and surface tension of intermediate and heavy crude oils. The studies have been conducted for the following oil samples...

  16. Effects of lubricant viscosity and surface texturing on ring-pack performance in internal combustion engines

    E-Print Network [OSTI]

    Takata, Rosalind (Rosalind Kazuko), 1978-

    2006-01-01

    The piston ring-pack contributes approximately 25% of the mechanical losses in an internal combustion engine. Both lubricant viscosity and surface texturing were investigated in an effort to reduce this ring-pack friction ...

  17. The effective approach for predicting viscosity of saturated and undersaturated reservoir oil 

    E-Print Network [OSTI]

    Kulchanyavivat, Sawin

    2006-04-12

    with creating a large database of pressure-volumetemperature (PVT) reports and screening all possible erroneous data. The relationship between the oil viscosity and other field-measured parameters is intensively analyzed by using theoretical and empirical...

  18. An extension of Pedersen's viscosity model for saturated black oil systems 

    E-Print Network [OSTI]

    Adejuwon, Adeyemi

    2000-01-01

    when needed for simple regression. We also investigated a functional relationship amongst pressure, volume, temperature (PVT) properties and a set of variables required to describe the viscosity correlation using a nonparametric regression analysis...

  19. Varying properties of in situ heat treatment of a tar sands formation based on assessed viscosities

    DOE Patents [OSTI]

    Karanikas, John Michael; Vinegar, Harold J

    2014-03-04

    A method for treating a tar sands formation includes providing heat to at least part of a hydrocarbon layer in the formation from a plurality of heaters located in the formation. The heat is allowed to transfer from the heaters to at least a portion of the formation. A viscosity of one or more zones of the hydrocarbon layer is assessed. The heating rates in the zones are varied based on the assessed viscosities. The heating rate in a first zone of the formation is greater than the heating rate in a second zone of the formation if the viscosity in the first zone is greater than the viscosity in the second zone. Fluids are produced from the formation through the production wells.

  20. Role of viscosity in the accurate prediction of source-terms for high molecular weight substances 

    E-Print Network [OSTI]

    Shaikh, Irfan Yusuf

    1999-01-01

    This study shows that using better material property predictions results in better source-term modeling for high molecular weight substances. Viscosity, density, and enthalpy are used as a function of process variables, namely, temperature...

  1. Influence of viscosity contrast on buoyantly unstable miscible fluids in porous media

    E-Print Network [OSTI]

    Pramanik, Satyajit; Mishra, Manoranjan

    2015-01-01

    The influence of viscosity contrast on buoyantly unstable miscible fluids in a porous medium is investigated through a linear stability analysis (LSA) as well as direct numerical simulations (DNS). The linear stability method implemented in this paper is based on an initial value approach, which helps to capture the onset of instability more accurately than the quasi-steady state analysis. In the absence of displacement, we show that viscosity contrast delays the onset of instability in buoyantly unstable miscible fluids. Further, it is observed that suitably choosing the viscosity contrast and injection velocity a gravitationally unstable miscible interface can be stabilized completely. Through LSA we draw a phase diagram, which shows three distinct stability regions in a parameter space spanned by the displacement velocity and the viscosity contrast. DNS are performed corresponding to parameters from each regime and the results obtained are in accordance with the linear stability results. Moreover, the conv...

  2. Relationship of Viscosity, Surface Tensions, and Coefficient of Friction of Lubricating Oils

    E-Print Network [OSTI]

    Carson, Earl

    1914-01-01

    between the Coefficient of Friction and Viscosity. Relationship between Viscosity and Surface Tension. 6 B I B L I O G R A P H Y Lubrication and Lubricants, Archbutt & Deeley, London, 1900. * Friction, lubrication, Fats & Oils, Dietrichs. Steam... oils, is easily accounted for. Ilineral lubricating oils are not affected by high pressure steam or alkalies and these character- istics enable them to be used where other lubricants would be quite unfitted for the work. Animal Oils:-- These oils...

  3. On the "viscosity maximum" during the uniaxial extension of a low density polyethylene

    E-Print Network [OSTI]

    Teodor I. Burghelea; Zdenek Stary; Helmut Muenstedt

    2010-01-13

    An experimental investigation of the viscosity overshoot phenomenon observed during uniaxial extension of a low density polyethylene is pre- sented. For this purpose, traditional integral viscosity measurements on a Muenstedt type extensional rheometer are combined with local mea- surements based on the in-situ visualization of the sample under exten- sion. For elongational experiments at constant strain rates within a wide range of Weissenberg numbers (Wi), three distinct deformation regimes are identified. Corresponding to low values of Wi (regime I), the tensile stress displays a broad maximum. This maximum can be explained by simple mathematical arguments as a result of low deformation rates and it should not be confused with the viscosity overshoot phenomenon. Corre- sponding to intermediate values of Wi (regime II), a local maximum of the integral extensional viscosity is systematically observed. However, within this regime, the local viscosity measurements reveal no maximum, but a plateau. Careful inspection of the images of samples within this regime shows that, corresponding to the maximum of the integral viscosity, sec- ondary necks develop along the sample. The emergence of a maximum of the integral elongational viscosity is thus related to the distinct in- homogeneity of deformation states and is not related to the rheological properties of the material. In the fast stretching limit (high Wi, regime III), the overall geometric uniformity of the sample is well preserved, no secondary necks are observed and both the integral and the local transient elongational viscosity show no maximum. A detailed comparison of the experimental findings with results from literature is presented.

  4. Computer simulation of effective viscosity of fluid-proppant mixture used in hydraulic fracturing

    E-Print Network [OSTI]

    Kuzkin, Vitaly A; Linkov, Aleksandr M

    2013-01-01

    The paper presents results of numerical experiments performed to evaluate the effective viscosity of a fluid-proppant mixture, used in hydraulic fracturing. The results, obtained by two complimenting methods (the particle dynamics and the smoothed particle hydrodynamics), coincide to the accuracy of standard deviation. They provide an analytical equation for the dependence of effective viscosity on the proppant concentration, needed for numerical simulation of the hydraulic fracture propagation.

  5. Viscosity of neutron star matter and $r$-modes in rotating pulsars

    E-Print Network [OSTI]

    E. E. Kolomeitsev; D. N. Voskresensky

    2015-02-21

    We study viscosity of the neutron star matter and $r$-mode instability in rotating neutron stars. Contributions to the shear and bulk viscosities from various processes are calculated with account of in-medium modifications of the nucleon-nucleon interaction. A softening of the pion mode and a possibility of the pion condensation are included. The nucleon pairing is incorporated. In the shear viscosity we include the lepton contribution calculated with account of the Landau damping in the photon exchange, the nucleon contribution described by the medium-modified one pion exchange, and other terms, such as the novel phonon contribution in the 1S$_0$ superfluid neutron phase, and the neutrino term in the neutrino opacity region. The nucleon shear viscosity depends on the density rather moderately and proves to be much less than the lepton term. Among the terms contributing to the bulk viscosity, the term from the medium modified Urca reactions possesses strongest density dependence because of the pion softening. Contributions to the bulk viscosity arising from other reactions induced by charged weak currents are included. The radiative bulk viscosity induced by charged and neutral weak currents in the region of the neutrino transparency of the star is also calculated with account for in-medium effects. The computed frequency boundary of the $r$-mode stability for the stars with the mass $\\ge 1.8 M_{\\odot}$ proves to be above the frequencies of all rotating young pulsars. To explain the stability of rapid rotation of old pulsars in X-ray binaries we propose a novel efficient mechanism associated with appearance of condensates of low-lying modes of bosonic excitations with finite momentum and/or with an enhancement of the inhomogeneous pion/kaon condensates in some parts of the star, if the angular velocity exceeds a critical value.

  6. From US NAVY Mate to Division Leader for Operations - Requirements, Development and Career Paths of LANL/LANSCE Accelerator Operators

    SciTech Connect (OSTI)

    Spickermann, Thomas [Los Alamos National Laboratory

    2012-07-26

    There are opportunities for advancement within the team. Operators advance by: (1) Becoming fully qualified - following the LANSCE Accelerator Operator Training Manual, Operator trainees go through 5 levels of qualification, from Radiation Security System to Experimental Area Operator. Must obtain Knowledge and Performance checkouts by an OSS or AOSS, and an End-of-Card checkout by the team leader or RSS engineer (level I). Program was inspired by US NAVY qualification program for nuclear reactor operators. Time to complete: 2-2.5 years. (2) Fully qualified operators are eligible to apply for vacant (OSS)/AOSS positions; and (3) Alternatively, experienced operators can sign up for the voluntary Senior Operator Qualification Program. They must demonstrate in-depth knowledge of all areas of the accelerator complex. Time to complete is 2-3 years (Minimum 4 years from fully qualified). Eligible for promotion to level between qualified operator and AOSS.

  7. An Analysis of Stream Culvert Fish Passage on the Navy Railroad Line between Bremerton and Shelton, Washington

    SciTech Connect (OSTI)

    May, Christopher W.; Miller, Martin C.; Southard, John A.

    2004-10-25

    The Navy railroad service line runs between Shelton, Bremerton, and Silverdale, and is used by the Navy to transfer freight to its facilities. It is also used by commercial clients to ship service items and bulk cargo for municipalities along portions of the route. Culverts of various size and construction convey streams and stormwater runoff under the railroad line. These allow transfer of water and, in some cases allow for passage of juvenile and adult salmon into waters upstream of the culverts. As part of this project, 21 culverts along a 34-mile reach (Shelton to Bremerton) of this railroad were surveyed to evaluate their function and ability to allow salmon to utilize the streams. The culverts and attached watersheds were evaluated using criteria developed by the Washington Department of Fish and Wildlife to assign a Priority Index (PI) to barriers present on each fish-bearing stream. The PI is a relative numeric rating indicator, assigned using consistent criteria related to the degree of potential habitat gained by removing barriers and improving the function of the watershed. Of the 21 culverts evaluated, five were found to be complete fish-passage barriers and six were found to be partial barriers, primarily to juvenile salmon. Three of these culverts had PI ratings above 10 and five others had ratings between 7 and 10. Corrective action can be taken based on any PI rating, but the WDFW normally assigns lower priority to projects with PI scores lower than 15. Several of the stream and culverts had previously been evaluated for structural integrity and function and have been scheduled for repair. A narrative indicating the condition of the culvert has been prepared as well as a table indicating the PI scores and a summary of recommendations for action for each culvert.

  8. On the abrupt growth dynamics of nonlinear resistive tearing mode and the viscosity effects

    SciTech Connect (OSTI)

    Ali, A.; Li, Jiquan, E-mail: lijq@energy.kyoto-u.ac.jp [Graduate School of Energy Science, Kyoto University, Gokasho, Uji, Kyoto 611-0011 (Japan); Kishimoto, Y. [Graduate School of Energy Science, Kyoto University, Gokasho, Uji, Kyoto 611-0011 (Japan); Institute of Advanced Energy, Kyoto University, Gokasho, Uji, Kyoto 611-0011 (Japan)

    2014-05-15

    The nonlinear evolution of the resistive tearing mode exhibits an abrupt growth after an X-point collapse once the magnetic island exceeds a certain critical width ??w{sub c} for large instability parameter ??, leading to a current sheet formation [N. F. Loureiro et al., Phys. Rev. Lett. 95, 235003 (2005)]. In this work, we investigate the underlying mechanism of the X-point collapse as well as the current sheet formation including the viscosity effects, based on a secondary instability analysis. The secondary instability is excited due to the quasilinear current modification by the zonal current. In particular, it is identified that the current peaking effect is plausibly responsible for the onset of the X-point collapse and the current sheet formation, leading to the explosive growth of reconnected flux. In the presence of finite viscosity, the ??w{sub c} scaling with the resistivity gets modified. A transition behavior is revealed at P{sub r}?1 for the viscosity dependence of ??w{sub c} and the linear tearing instability. However, the explosive growth seems to be independent of the viscosity in the magnetic Prandtl number P{sub r}<1 regime, while large viscosity plays a strong dissipation role.

  9. Effect of surface viscosity, anchoring energy, and cell gap on the response time of nematic liquid crystals

    SciTech Connect (OSTI)

    Souza, R.F. de; Yang, D.-Ke; Lenzi, E.K.; Evangelista, L.R.; Zola, R.S.

    2014-07-15

    An analytical expression for the relaxation time of a nematic liquid crystal is obtained for the first time by considering the influence of surface viscosity, anchoring energy strength and cell gap, validated numerically by using the so-called relaxation method. This general equation for the molecular response time (?{sub 0}) was derived for a vertical aligned cell and by solving an eigenvalue equation coming from the usual balance of torque equation in the Derzhanskii and Petrov formulation, recovering the usual equations in the appropriate limit. The results show that ??d{sup b}, where b=2 is observed only for strongly anchored cells, while for moderate to weak anchored cells, the exponent lies between 1 and 2, depending on both, surface viscosity and anchoring strength. We found that the surface viscosity is important when calculating the response time, specially for thin cells, critical for liquid crystal devices. The surface viscosity’s effect on the optical response time with pretilt is also explored. Our results bring new insights about the role of surface viscosity and its effects in applied physics. - Highlights: • The relaxation of nematic liquid crystals is calculated by taking the surface viscosity into account. • An analytical expression for the relaxation time depending on surface viscosity, anchoring strength and cell gap is obtained. • The results are numerically verified. • Surface viscosity is crucial for thin and weak anchored cells. • The effect on optical time and pretilt angle is also studied.

  10. Anomalous Viscosity, Resistivity, and Thermal Diffusivity of the Solar Wind Plasma

    E-Print Network [OSTI]

    Mahendra K. Verma

    1995-09-05

    In this paper we have estimated typical anomalous viscosity, resistivity, and thermal difffusivity of the solar wind plasma. Since the solar wind is collsionless plasma, we have assumed that the dissipation in the solar wind occurs at proton gyro radius through wave-particle interactions. Using this dissipation length-scale and the dissipation rates calculated using MHD turbulence phenomenology [{\\it Verma et al.}, 1995a], we estimate the viscosity and proton thermal diffusivity. The resistivity and electron's thermal diffusivity have also been estimated. We find that all our transport quantities are several orders of magnitude higher than those calculated earlier using classical transport theories of {\\it Braginskii}. In this paper we have also estimated the eddy turbulent viscosity.

  11. Automation of a high-speed imaging setup for differential viscosity measurements

    SciTech Connect (OSTI)

    Hurth, C.; Duane, B.; Whitfield, D.; Smith, S.; Nordquist, A.; Zenhausern, F. [Center for Applied Nanobioscience and Medicine, The University of Arizona College of Medicine, 425 N 5th Street, Phoenix, Arizona 85004 (United States)] [Center for Applied Nanobioscience and Medicine, The University of Arizona College of Medicine, 425 N 5th Street, Phoenix, Arizona 85004 (United States)

    2013-12-28

    We present the automation of a setup previously used to assess the viscosity of pleural effusion samples and discriminate between transudates and exudates, an important first step in clinical diagnostics. The presented automation includes the design, testing, and characterization of a vacuum-actuated loading station that handles the 2 mm glass spheres used as sensors, as well as the engineering of electronic Printed Circuit Board (PCB) incorporating a microcontroller and their synchronization with a commercial high-speed camera operating at 10 000 fps. The hereby work therefore focuses on the instrumentation-related automation efforts as the general method and clinical application have been reported earlier [Hurth et al., J. Appl. Phys. 110, 034701 (2011)]. In addition, we validate the performance of the automated setup with the calibration for viscosity measurements using water/glycerol standard solutions and the determination of the viscosity of an “unknown” solution of hydroxyethyl cellulose.

  12. Study of shear-driven unsteady flows of a fluid with a pressure dependent viscosity 

    E-Print Network [OSTI]

    Srinivasan, Shriram

    2009-05-15

    -DRIVEN UNSTEADY FLOWS OF A FLUID WITH A PRESSURE DEPENDENT VISCOSITY A Thesis by SHRIRAM SRINIVASAN Submitted to the O ce of Graduate Studies of Texas A&M University in partial ful llment of the requirements for the degree of MASTER OF SCIENCE December 2008 Major... Subject: Mechanical Engineering STUDY OF SHEAR-DRIVEN UNSTEADY FLOWS OF A FLUID WITH A PRESSURE DEPENDENT VISCOSITY A Thesis by SHRIRAM SRINIVASAN Submitted to the O ce of Graduate Studies of Texas A&M University in partial ful llment of the requirements...

  13. Lyapunov Stabilizability of Controlled Diffusions via a Superoptimality Principle for Viscosity Solutions

    SciTech Connect (OSTI)

    Cesaroni, Annalisa [Dipartimento di Matematica P. e A., Universita di Padova, via Belzoni 7, 35131 Padova (Italy)], E-mail: acesar@math.unipd.it

    2006-01-15

    We prove optimality principles for semicontinuous bounded viscosity solutions of Hamilton-Jacobi-Bellman equations. In particular, we provide a representation formula for viscosity supersolutions as value functions of suitable obstacle control problems. This result is applied to extend the Lyapunov direct method for stability to controlled Ito stochastic differential equations. We define the appropriate concept of the Lyapunov function to study stochastic open loop stabilizability in probability and local and global asymptotic stabilizability (or asymptotic controllability). Finally, we illustrate the theory with some examples.

  14. Viscosity, wave damping and shock wave formation in cold hadronic matter

    E-Print Network [OSTI]

    D. A. Fogaça; F. S. Navarra; L. G. Ferreira Filho

    2013-09-06

    We study linear and nonlinear wave propagation in a dense and cold hadron gas and also in a cold quark gluon plasma, taking viscosity into account and using the Navier-Stokes equation. The equation of state of the hadronic phase is derived from the nonlinear Walecka model in the mean field approximation. The quark gluon plasma phase is described by the MIT equation of state. We show that in a hadron gas viscosity strongly damps wave propagation and also hinders shock wave formation. This marked difference between the two phases may have phenomenological consequences and lead to new QGP signatures.

  15. Displacement of oil from reservoir rock using graded-viscosity water 

    E-Print Network [OSTI]

    Al-Atigi, Yosef A

    1974-01-01

    experiment a total of I pore volume (PV) of fluids was injected at a constant rate of 0. 766 cc/min. The oil used had a viscosity of 30 centipoise (cp). In one case, a 1 PV bank of plain water was injected. In another case, a 1 PV bank of 30 cp polymer... solution was injected. Between the two cases, 29% of the polymer used above was utilized to make a 1/2 PV bank of graded-viscosity polymer solution and, in a separate case, to make a 0. 29 PV bank of 30 cp polymer solution. The two banks were flushed...

  16. Thermoelectric conductivities, shear viscosity, and stability in an anisotropic linear axion model

    E-Print Network [OSTI]

    Xian-Hui Ge; Yi Ling; Chao Niu; Sang-Jin Sin

    2015-11-16

    We study thermoelectric conductivities and shear viscosities in a holographically anisotropic model, which is dual to a spatially anisotropic $\\mathcal{N}=4$ super-Yang-Mills theory at finite chemical potential. Momentum relaxation is realized through perturbing the linear axion field. Ac conductivity exhibits a coherent/incoherent metal transition. Deviations from the Wiedemann-Franz law are also observed in our model. The longitudinal shear viscosity for prolate anisotropy violates the bound conjectured by Kovtun-Son-Starinets. We also find that thermodynamic and dynamical instabilities are not always equivalent by examining the Gubser-Mitra conjecture.

  17. Distributions of H2O and CO2 ices on Ariel, Umbriel, Titania, and Oberon from IRTF/SpeX observations

    E-Print Network [OSTI]

    W. M. Grundy; L. A. Young; J. R. Spencer; R. E. Johnson; E. F. Young; M. W. Buie

    2007-04-12

    We present 0.8 to 2.4 micron spectral observations of uranian satellites, obtained at IRTF/SpeX on 17 nights during 2001-2005. The spectra reveal for the first time the presence of CO2 ice on the surfaces of Umbriel and Titania, by means of 3 narrow absorption bands near 2 microns. Several additional, weaker CO2 ice absorptions have also been detected. No CO2 absorption is seen in Oberon spectra, and the strengths of the CO2 ice bands decline with planetocentric distance from Ariel through Titania. We use the CO2 absorptions to map the longitudinal distribution of CO2 ice on Ariel, Umbriel, and Titania, showing that it is most abundant on their trailing hemispheres. We also examine H2O ice absorptions in the spectra, finding deeper H2O bands on the leading hemispheres of Ariel, Umbriel, and Titania, but the opposite pattern on Oberon. Potential mechanisms to produce the observed longitudinal and planetocentric distributions of the two ices are considered.

  18. Users guide for the conversion of Navy paint-spray-booth particulate emission-control systems from wet to dry operation. Final report, January-September 1989

    SciTech Connect (OSTI)

    Ayer, J.; Tate, D.

    1990-03-01

    The report is a guide for converting U.S. Navy paint-spray-booth particulate emission control systems from wet to dry operation. The use of water curtains for air-pollution-control of paint-spray booths is considered a major source of water and solid-waste pollution from industrial painting operations. It is possible, however, to eliminate this water-pollution problem and significantly reduce the solid-waste load by converting the booth to utilize a dry-filter pollution-control system. The conversion, however, requires extensive planning prior to actual facility modification. The report describes requirements to facilitate the planning and preparation for conversion of typical spray booths. Although the report addresses modifications of Navy spray booths, the basic engineering requirements discussed apply also to other Department of Defense installations and to commercial industrial facilities.

  19. Dynamics of Hemoglobin in Human Erythrocytes and in Solution: Influence of Viscosity Studied by Ultrafast

    E-Print Network [OSTI]

    Fayer, Michael D.

    Dynamics of Hemoglobin in Human Erythrocytes and in Solution: Influence of Viscosity Studied by Ultrafast Vibrational Echo Experiments Brian L. McClain, Ilya J. Finkelstein, and M. D. Fayer* Contribution experiments are used to measure the vibrational dephasing of the CO stretching mode of hemoglobin-CO (Hb

  20. Experimental and Theoretical Determination of Heavy Oil Viscosity Under Reservoir Conditions

    SciTech Connect (OSTI)

    Gabitto, Jorge; Barrufet, Maria

    2002-03-11

    The main objective of this research was to propose a simple procedure to predict heavy oil viscosity at reservoir conditions as a function of easily determined physical properties. This procedure will avoid costly experimental testing and reduce uncertainty in designing thermal recovery processes.

  1. Extensional viscosity of copper nanowire suspensions in an aqueous polymer solution

    E-Print Network [OSTI]

    Amarin G. McDonnell; Naveen N. Jason; Leslie Y. Yeo; James R. Friend; Wenlong Cheng; Ranganathan Prabhakar

    2015-08-05

    Suspensions of copper nanowires are emerging as new electronic inks for next-generation flexible electronics. Using a novel surface acoustic wave driven extensional flow technique we are able to perform currently lacking analysis of these suspensions and their complex buffer. We observe extensional viscosities from 3 mPa$\\cdot$s (1 mPa$\\cdot$s shear viscosity) to 37.2 Pa$\\cdot$s via changes in the suspension concentration, thus capturing low viscosities that have been historically very challenging to measure. These changes equate to an increase in the relative extensional viscosity of nearly 12,200 times at a volume fraction of just 0.027. We also find that interactions between the wires and the necessary polymer additive affect the rheology strongly. Polymer-induced elasticity shows a reduction as the buffer relaxation time falls from 819 to 59 $\\mu$s above a critical particle concentration. The results and technique presented here should aid in the future formulation of these promising nanowire suspensions and their efficient application as inks and coatings.

  2. Mantle dynamics in super-Earths: Post-perovskite rheology and self-regulation of viscosity

    E-Print Network [OSTI]

    Tackley, Paul J.

    Mantle dynamics in super-Earths: Post-perovskite rheology and self-regulation of viscosity P we evaluate this. First, as the mantle of a super-Earth is made mostly of post-perovskite we here extend the density functional theory (DFT) calculations of post- perovskite activation enthalpy

  3. Repetitive rebrightening of EG Cancri: evidence for viscosity decay in the quiescent disk?

    E-Print Network [OSTI]

    Yoji Osaki; Friedrich Meyer; Emmi Meyer-Hofmeister

    2001-02-20

    A WZ Sge-type dwarf nova, EG Cancri, exhibited six consecutive mini-outbursts with a mean interval of about seven days after the end of the main outburst in 1996/1997. Most unusual was that the star abruptly entered into a deep faint minimum after such frantic activities. We propose that this peculiar phenomenon may be understoodin terms of viscosity decay in the cold disk. In this picture, the viscosity is produced by MHD turbulence due to the magneto-rotational instability ('Balbus-Hawley instability') and dies down exponentially with time when the disk becomes cold because the magnetic fields decay due to finite conductivity in the cold disk (Gammie & Menou 1998). But the viscosity is refreshed to a high value every time when a mini-outburst occurs (i.e., the disk becomes hot again). It is argued that a sudden cessation of repetitive mini-outbursts may be brought about by a very small reduction in viscosity or a small increase in its decay rate, which may in turn be produced most likely by stochastic fluctuations of magnetic fields. Numerical simulations based on a simple model reproduce the observed light curve of EG Cancri very well. We discuss possible causes why the reflares after the main outburst occur mostly in the WZ Sge-type stars.

  4. Buoyant mixing of miscible fluids of varying viscosities in vertical tubes M. Debacq,a)

    E-Print Network [OSTI]

    Hinch, John

    engineering,10 fire propagation in vertical shafts,11 drilling and completion fluids in petroleum engiBuoyant mixing of miscible fluids of varying viscosities in vertical tubes M. Debacq,a) J-P. Hulin,b) and D. Salin Laboratoire Fluides Automatique et Syste`mes Thermiques, UMR 7608, CNRS, Universite´s P. et

  5. A NOTE ON FRONT TRACKING AND THE EQUIVALENCE BETWEEN VISCOSITY SOLUTIONS OF HAMILTON-JACOBI EQUATIONS

    E-Print Network [OSTI]

    A NOTE ON FRONT TRACKING AND THE EQUIVALENCE BETWEEN VISCOSITY SOLUTIONS OF HAMILTON-JACOBI solution of the Hamilton-Jacobi equation u t + H(ux ) = 0. In our proof we work directly with the de#12 conservation laws to Hamilton-Jacobi equations and derive some of its properties. 1. Introduction It is well

  6. Viscosity and mutual diffusion of deuterium-tritium mixtures in the warm-dense-matter regime

    SciTech Connect (OSTI)

    Kress, J. D.; Cohen, James S.; Horner, D. A.; Collins, L. A. [Theoretical Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (United States); Lambert, F. [CEA, DAM, DIF, F-91297 Arpajon (France)

    2010-09-15

    We have calculated viscosity and mutual diffusion of deuterium-tritium (DT) in the warm, dense matter regime for densities from 5 to 20 g/cm{sup 3} and temperatures from 2 to 10 eV, using both finite-temperature Kohn-Sham density-functional theory molecular dynamics (QMD) and orbital-free molecular dynamics (OFMD). The OFMD simulations are in generally good agreement with the benchmark QMD results, and we conclude that the simpler OFMD method can be used with confidence in this regime. For low temperatures (3 eV and below), one-component plasma (OCP) model simulations for diffusion agree with the QMD and OFMD calculations, but deviate by 30% at 10 eV. In comparison with the QMD and OFMD results, the OCP viscosities are not as good as for diffusion, especially for 5 g/cm{sup 3} where the temperature dependence is significantly different. The QMD and OFMD reduced diffusion and viscosity coefficients are found to depend largely, though not completely, only on the Coulomb coupling parameter {Gamma}, with a minimum in the reduced viscosity at {Gamma}{approx_equal}25, approximately the same position found in the OCP simulations. The QMD and OFMD equations of state (pressure) are also compared with the hydrogen two-component plasma model.

  7. Densification and Sintering Viscosity of Low-Temperature Co-Fired Ceramics

    E-Print Network [OSTI]

    Messing, Gary L.

    Densification and Sintering Viscosity of Low-Temperature Co-Fired Ceramics Aravind Mohanram,* Gary-temperature co-sintered ceramic systems, i.e., DuPont 951Tape (DU), Heraeus CT2000 (CT), and Ferro A6M (FE from 0.1 to 100 GPa . s between 73% and 95% density. Ceramic particle-filled glasses show a higher

  8. An optimal viscosity profile in enhanced oil recovery by polymer Prabir Daripa1,

    E-Print Network [OSTI]

    Daripa, Prabir

    An optimal viscosity profile in enhanced oil recovery by polymer flooding Prabir Daripa1, and G. Pa. 2029-2039, 2004 (Nov. Issue) Abstract Forced displacement of oil by polymer flooding in oil reservoir, polymer flooding, linear stability. Author for correspondence (e-mail: prabir.daripa@math.tamu.edu) 1 #12;

  9. An optimal viscosity profile in enhanced oil recovery by polymer flooding

    E-Print Network [OSTI]

    Daripa, Prabir

    An optimal viscosity profile in enhanced oil recovery by polymer flooding Prabir Daripa a,*, G; accepted 3 July 2004 (Communicated by L. DEBNATH) Abstract Forced displacement of oil by polymer flooding reserved. Keywords: Enhanced oil recovery; Polymer flooding; Linear stability 0020-7225/$ - see front

  10. PHYSICAL REVIEW E 87, 013106 (2013) Longitudinal viscosity of two-dimensional Yukawa liquids

    E-Print Network [OSTI]

    Goree, John

    2013-01-01

    is obtained for a two-dimensional (2D) liquid using a Green-Kubo method with a molecular dynamics simulation characterize energy dissipation in a fluid. Bulk viscosity is for energy dissipation due to compression, in contrast, is for energy dissipation due to a gradient in the flow velocity. In the latter case, the energy

  11. Optical microstructure and viscosity enhancement for an epoxy resin matrix containing multiwall carbon

    E-Print Network [OSTI]

    Elliott, James

    dispersed in polycarbonate, where they reported a step change in viscosity for 2 wt % loading of MWCNTs in polycarbonate at low shear rates. The rheological behavior of MWCNTs in polypropylene, and their corresponding conductivity. Recently, Xu et al. 2005 again reported on the systematic development of viscoelasticity

  12. Micromechanical transient sensor for measuring viscosity and density of a fluid

    DOE Patents [OSTI]

    Thundat, Thomas G. (Knoxville, TN); Oden, Patrick I. (Plano, TX); Warmack, Robert J. (Knoxville, TN); Finot, Eric Laurent (Torcy, FR)

    2001-01-01

    A method and apparatus for measuring the viscosity and/or specific density of a fluid utilizes a microcantilever vibrated in the analyte fluid. The source of vibration is switched on and off and the transient behavior or decay in amplitude of the vibration is monitored. The method is particularly useful for the measurement of process conditions in remote locations in real time.

  13. Direct multi-wavelength limb-darkening measurements of three late-type giants with the Navy Prototype Optical Interferometer

    E-Print Network [OSTI]

    M. Wittkowski; C. A. Hummel; K. J. Johnston; D. Mozurkewich; A. R. Hajian; N. M. White

    2001-08-10

    We present direct measurements of the limb-darkened intensity profiles of the late-type giant stars HR5299, HR7635, and HR8621 obtained with the Navy Prototype Optical Interferometer (NPOI) at the Lowell Observatory. A triangle of baselines with lengths of 18.9 m, 22.2 m, and 37.5 m was used. We utilized squared visibility amplitudes beyond the first minimum, as well as triple amplitudes and phases in up to 10 spectral channels covering a wavelength range of ~650 nm to ~850 nm. We find that our data can best be described by featureless symmetric limb-darkened disk models while uniform disk and fully darkened disk models can be rejected. We derive high-precision angular limb-darkened diameters for the three stars of 7.44 mas +/- 0.11 mas, 6.18 mas +/- 0.07 mas, and 6.94 mas +/- 0.12 mas, respectively. Using the HIPPARCOS parallaxes, we determine linear limb-darkened radii of 114 R$_\\odot \\pm $13 R$_\\odot$, 56 R$_\\odot \\pm $4 R$_\\odot$, and 98 R$_\\odot \\pm $9 R$_\\odot$, respectively. We compare our data to a grid of Kurucz stellar model atmospheres, with them derive the effective temperatures and surface gravities without additional information, and find agreement with independent estimates derived from empirical calibrations and bolometric fluxes. This confirms the consistency of model predictions and direct observations of the limb-darkening effect.

  14. On the contribution of plasminos to the shear viscosity of a hot and dense Yukawa-Fermi gas

    E-Print Network [OSTI]

    N. Sadooghi; F. Taghinavaz

    2015-04-16

    Using the standard Green-Kubo formalism, we determine the shear viscosity $\\eta$ of a hot and dense Yukawa-Fermi gas. In particular, we study the effect of particle and plasmino excitations on thermal properties of the fermionic part of the shear viscosity, and explore the effects of thermal corrections to particle masses on bosonic and fermionic shear viscosities, $\\eta_b$ and $\\eta_f$. It turns out that the effects of plasminos on $\\eta_f$ become negligible with increasing (decreasing) temperature (chemical potential).

  15. Motility induced changes in viscosity of suspensions of swimming microbes in extensional flows

    E-Print Network [OSTI]

    Amarin G. McDonnell; Tilvawala C. Gopesh; Jennifer Lo; Moira O'Bryan; Leslie Y. Yeo; James R. Friend; Ranganathan Prabhakar

    2015-02-23

    Suspensions of motile cells are model systems for understanding the unique mechanical properties of living materials which often consist of ensembles of self-propelled particles. We present here a quantitative comparison of theory against experiment for the rheology of such suspensions. The influence of motility on viscosities of cell suspensions is studied using a novel acoustically-driven microfluidic capillary-breakup extensional rheometer. Motility increases the extensional viscosity of suspensions of algal pullers, but decreases it in the case of bacterial or sperm pushers. A recent model [Saintillan, Phys. Rev. E, 2010, 81:56307] for dilute active suspensions is extended to obtain predictions for higher concentrations, after independently obtaining parameters such as swimming speeds and diffusivities. We show that details of body and flagellar shape can significantly determine macroscale rheological behaviour.

  16. Mantle Dynamics in Super-Earths: Post-Perovskite Rheology and Self-Regulation of Viscosity

    E-Print Network [OSTI]

    Tackley, Paul J; Brodholt, John P; Dobson, David P; Valencia, Diana

    2012-01-01

    Simple scalings suggest that super-Earths are more likely than an equivalent Earth-sized planet to be undergoing plate tectonics. Generally, viscosity and thermal conductivity increase with pressure while thermal expansivity decreases, resulting in lower convective vigor in the deep mantle. According to conventional thinking, this might result in no convection in a super-Earth's deep mantle. Here we evaluate this. First, we here extend the density functional theory (DFT) calculations of post-perovskite activation enthalpy of to a pressure of 1 TPa. The activation volume for diffusion creep becomes very low at very high pressure, but nevertheless for the largest super-Earths the viscosity along an adiabat may approach 1030 Pa s in the deep mantle. Second, we use these calculated values in numerical simulations of mantle convection and lithosphere dynamics of planets with up to ten Earth masses. The models assume a compressible mantle including depth-dependence of material properties and plastic yielding induce...

  17. Viscosity method for Homogenization of Parabolic Nonlinear Equations in Perforated Domains

    E-Print Network [OSTI]

    Kim, Sunghoon

    2011-01-01

    In this paper, we develop a viscosity method for Homogenization of Nonlinear Parabolic Equations constrained by highly oscillating obstacles or Dirichlet data in perforated domains. The Dirichlet data on the perforated domain can be considered as a constraint or an obstacle. Homogenization of nonlinear eigen value problems has been also considered to control the degeneracy of the Porous medium equation in perforated domains. For the simplicity, we consider obstacles that consist of cylindrical columns distributed periodically and perforated domains with punctured balls. If the decay rate of the capac- ity of columns or the capacity of punctured ball is too high or too small, the limit of u\\k{o} will converge to trivial solutions. The critical decay rates of having nontrivial solution are obtained with the construction of barriers. We also show the limit of u\\k{o} satisfies a homogenized equation with a term showing the effect of the highly oscillating obstacles or perforated domain in viscosity sense.

  18. Shear Viscosity and Phase Diagram from Polyakov$-$Nambu$-$Jona-Lasinio model

    E-Print Network [OSTI]

    Sanjay K. Ghosh; Sibaji Raha; Rajarshi Ray; Kinkar Saha; Sudipa Upadhaya

    2014-11-12

    We discuss a detailed study of the variation of shear viscosity, $\\eta$, with temperature and baryon chemical potential within the framework of Polyakov$-$Nambu$-$Jona-Lasinio model. $\\eta$ is found to depend strongly on the spectral width of the quasi-particles present in the model. The variation of $\\eta$ across the phase diagram has distinctive features for different kinds of transitions. These variations have been used to study the possible location of the Critical End Point (CEP), and cross-checked with similar studies of variation of specific heat. Finally using a parameterization of freeze-out surface in heavy-ion collision experiments, the variation of shear viscosity to entropy ratio has also been discussed as a function of the center of mass energy of collisions.

  19. Viscosity Determination of Molten Ash from Low-Grade US Coals

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

    Zhu, Jingxi; Nakano, Jinichiro; Kaneko, Tetsuya Kenneth; Mu, Haoyuan; Bennett, James P.; Kwong, Kyei-Sing; Rozelle, Peter; Sridhar, Seetharaman

    2012-10-01

    In entrained slagging gasifiers, the fluidity of the molten ash is a critical factor for process control since it affects slag formation, the capture of inorganic constituents, refractory wear, and slag drainage along the gasification chamber walls. The use of western coal, or mixtures of eastern and western coals as gasifier feedstock, is likely to occur as western coals become available and technological issues that hinder their use are being resolved. In the present work, the viscosity of synthetic slags with ash chemistries simulating the western U.S. coals, was experimentally measured at a Po2 = 10- 8 atm in themore »temperature range of 1773–1573 K (1500–1300 °C) using a rotating-bob viscometer. Alumina spindles and containment crucibles of both alumina and zirconia were used. Crystallization studies of this slag using a confocal scanning laser microscope found that a (Mg,Fe)Al2O4-based spinel precipitated at temperatures below 1723 K (1450 °C), and this agreed with FactSage equilibrium phase prediction. The same spinels were observed in the post-viscometry experiment slags when ZrO2 crucibles were used and assumed to be in equilibrium with the slag at the higher temperatures. Zirconia dissolution resulted in a slight increase in the solid fraction present in slags at lower temperatures, compared to spinel fraction. Crystal precipitation changed the apparent activation energy and required a longer stabilization times for viscosity measurements. The viscosity results were used in predictive equations based on Veytsman and Einstein's models, with critical nucleation temperatures and the solid fraction calculated with FactSage. In the simulated eastern/western coal feedstock blends based on ash compositions, the fractions of the solid precipitates were also calculated using the thermodynamic program FactSage for each blend composition, and the plastic viscosity of each eastern/western coal slag blend was predicted using Veytsman's model and compared to available experimental data.« less

  20. Viscosity Solutions of Systems of PDEs with Interconnected Obstacles and Switching Problem

    SciTech Connect (OSTI)

    Hamadene, S. Morlais, M. A.

    2013-04-15

    This paper deals with existence and uniqueness of a solution in viscosity sense, for a system of m variational partial differential inequalities with inter-connected obstacles. A particular case is the Hamilton-Jacobi-Bellmann system of the Markovian stochastic optimal m-states switching problem. The switching cost functions depend on (t,x). The main tool is the notion of systems of reflected backward stochastic differential equations with oblique reflection.

  1. Viscosity of ?-pinene secondary organic material and implications for particle growth and reactivity

    SciTech Connect (OSTI)

    Renbaum-Wolff, Lindsay; Grayson, James W.; Bateman, Adam P.; Kuwata, Mikinori; Sellier, Mathieu; Murray, Benjamin J.; Shilling, John E.; Martin, Scot T.; Bertram, Allan K.

    2013-05-14

    Particles composed of secondary organic material (SOM) are abundant in the lower troposphere and play important roles in climate, air quality, and health. The viscosity of these particles is a fundamental property that is presently poorly quantified for conditions relevant to the lower troposphere. Using two new techniques, namely a bead-mobility technique and a poke-flow technique, in conjunction with simulations of fluid flow, we measure the viscosity of the watersoluble component of SOM produced by ?-pinene ozonolysis. The viscosity is comparable to that of honey at 90% relative humidity (RH), comparable to that of peanut butter at 70% RH and greater than or comparable to that of bitumen for ? 30% RH, implying that the studied SOM ranges from liquid to semisolid/solid at ambient relative humidities. With the Stokes-Einstein relation, the measured viscosities further imply that the growth and evaporation of SOM by the exchange of organic molecules between the gas and condensed phases may be confined to the surface region when RH ? 30%, suggesting the importance of an adsorption-type mechanism for partitioning in this regime. By comparison, for RH ? 70% partitioning of organic molecules may effectively occur by an absorption mechanism throughout the bulk of the particle. Finally, the net uptake rates of semi-reactive atmospheric oxidants such as O3 are expected to decrease by two to five orders of magnitude for a change in RH from 90% to ? 30% RH, with possible implications for the rates of chemical aging of SOM particles in the atmosphere.

  2. Viscosity Determination of Molten Ash from Low-Grade US Coals

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

    Zhu, Jingxi [National Energy Technology Laboratory (NETL), Pittsburgh, PA, and Morgantown, WV (United States); URS Corp., Albany, OR (United States); Nakano, Jinichiro [National Energy Technology Laboratory (NETL), Pittsburgh, PA, and Morgantown, WV (United States); URS Corp., Albany, OR (United States); Kaneko, Tetsuya Kenneth [National Energy Technology Laboratory (NETL), Pittsburgh, PA, and Morgantown, WV (United States); Carnegie Mellon Univ., Pittsburgh, PA (United States); Mu, Haoyuan [Carnegie Mellon Univ., Pittsburgh, PA (United States); Bennett, James P. [National Energy Technology Laboratory (NETL), Pittsburgh, PA, and Morgantown, WV (United States); Kwong, Kyei-Sing [National Energy Technology Laboratory (NETL), Pittsburgh, PA, and Morgantown, WV (United States); Rozelle, Peter [US Dept. of Energy, Washington, DC (United States). Office of Clean Energy Systems; Sridhar, Seetharaman [National Energy Technology Laboratory (NETL), Pittsburgh, PA, and Morgantown, WV (United States); Carnegie Mellon Univ., Pittsburgh, PA (United States)

    2011-10-01

    In entrained slagging gasifiers, the fluidity of the molten ash is a critical factor for process control since it affects slag formation, the capture of inorganic constituents, refractory wear, and slag drainage along the gasification chamber walls. The use of western coal, or mixtures of eastern and western coals as gasifier feedstock, is likely to occur as western coals become available and technological issues that hinder their use are being resolved. In the present work, the viscosity of synthetic slags with ash chemistries simulating the western U.S. coals, was experimentally measured at a Po2?=?10- 8 atm in the temperature range of 1773–1573 K (1500–1300 °C) using a rotating-bob viscometer. Alumina spindles and containment crucibles of both alumina and zirconia were used. Crystallization studies of this slag using a confocal scanning laser microscope found that a (Mg,Fe)Al2O4-based spinel precipitated at temperatures below 1723 K (1450 °C), and this agreed with FactSage equilibrium phase prediction. The same spinels were observed in the post-viscometry experiment slags when ZrO2 crucibles were used and assumed to be in equilibrium with the slag at the higher temperatures. Zirconia dissolution resulted in a slight increase in the solid fraction present in slags at lower temperatures, compared to spinel fraction. Crystal precipitation changed the apparent activation energy and required a longer stabilization times for viscosity measurements. The viscosity results were used in predictive equations based on Veytsman and Einstein's models, with critical nucleation temperatures and the solid fraction calculated with FactSage. In the simulated eastern/western coal feedstock blends based on ash compositions, the fractions of the solid precipitates were also calculated using the thermodynamic program FactSage for each blend composition, and the plastic viscosity of each eastern/western coal slag blend was predicted using Veytsman's model and compared to available experimental data.

  3. Viscosity of plant oils as a function of temperature, fatty acid chain length, and unsaturation 

    E-Print Network [OSTI]

    Neo, Tong Heng

    1988-01-01

    VISCOS1TY OF PLANT OILS AS A FUNCTION OF TEMPERATURE, FATIY ACID CHAIN LENGTH, AND UNSATURATION A Thesis by TONG HENG NEO Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements... for the degree of MASTER OF SCIENCE December 1988 Major Subject: Agricultural Engineering VISCOSITY OF PLANT OILS AS A FUNCTION OF TEMPERATURE, FATTY ACID CHAIN LENGTH, AND UNSATURATION A Thesis by TONG HENG NEO Approved as to style and content by...

  4. Real viscosity effects in inertial confinement fusion target deuterium–tritium micro-implosions

    SciTech Connect (OSTI)

    Mason, R. J., E-mail: rodmason01@msn.com; Kirkpatrick, R. C.; Faehl, R. J. [Research Applications Corporation, Los Alamos, New Mexico 87544 (United States)] [Research Applications Corporation, Los Alamos, New Mexico 87544 (United States)

    2014-02-15

    We report on numerical studies of real viscous effects on the implosion characteristics of imploded DT micro-targets. We use the implicit ePLAS code to perform 2D simulations of spherical and slightly ellipsoidal DT shells on DT gas filled ?40??m diameter voids. Before their final implosions the shells have been nearly adiabatically compressed up to 10{sup 2} or 10{sup 3}?g/cm{sup 3} densities. While the use of conventional artificial viscosity can lead to high central densities for initially spherical shells, we find that a real physical viscosity from ion-ion collisions can give a high (>20?keV) central temperature but severely reduced central density (<200?g/cm{sup 3}), while the elliptical shells evidence p?=?2 distortion of the heated central fuel region. These results suggest that the general use of artificial viscosities in Inertial Confinement Fusion (ICF) modeling may have lead to overly optimistic yields for current NIF targets and that polar direct drive with more energy for the imploding capsule may be needed for ultimate ICF success.

  5. Modeling multiphase flow for high viscosity liquids: a study of vertical/inclined zero net liquid flow 

    E-Print Network [OSTI]

    Rodriguez, Jose Ramon

    2001-01-01

    This experimental study investigates the effects of inclination angle and fluid viscosity on zero net liquid flow (ZNLF). Predicting liquid holdup under ZNLF conditions is necessary in several types of petroleum industry operations. These include...

  6. Adequate description of heavy oil viscosities and a method to assess optimal steam cyclic periods for thermal reservoir simulation 

    E-Print Network [OSTI]

    Mago, Alonso Luis

    2006-08-16

    exceeding 2.5 trillion barrels. Management decisions and production strategies from thermal oil recovery processes are frequently based on reservoir simulation. A proper description of the physical properties, particularly oil viscosity, is essential...

  7. Analysis of hydraulic power transduction in regenerative rotary shock absorbers as function of working fluid kinematic viscosity

    E-Print Network [OSTI]

    Avadhany, Shakeel N

    2009-01-01

    This investigation seeks to investigate the relationship of kinematic fluid viscosity to the effective power transduction seen by a hydraulic motor. Applications of this research specifically relate to energy recovery from ...

  8. Discontinuous Galerkin Finite Element Method for the Nonlinear Hyperbolic Problems with Entropy-Based Artificial Viscosity Stabilization 

    E-Print Network [OSTI]

    Zingan, Valentin Nikolaevich

    2012-07-16

    This work develops a discontinuous Galerkin finite element discretization of non- linear hyperbolic conservation equations with efficient and robust high order stabilization built on an entropy-based artificial viscosity approximation...

  9. Navy Warfare Development Command (NWDC) is hosting a Pacific Rim Innovation Symposium on October 10-11, 2012, at the SPAWAR Center in San Diego, Ca., for junior leaders from E-5 to O-5. The event is scheduled to start at 12:00

    E-Print Network [OSTI]

    Navy Warfare Development Command (NWDC) is hosting a Pacific Rim Innovation Symposium on October 10, "Engaging Junior Leaders to Address Pacific Rim Challenges," is designed to help junior leaders transform Warfare Development CommandNavy Warfare Development Command Pacific Rim Innovation SymposiumPacific Rim

  10. Elliptic Flow and Shear Viscosity within a Transport Approach from RHIC to LHC Energy

    E-Print Network [OSTI]

    S. Plumari; V. Greco

    2011-10-11

    We have investigated the build up of anisotropic flows within a parton cascade approach at fixed shear viscosity to entropy density \\eta/s to study the generation of collective flows in ultra-relativistic heavy ion collisions. We present a study of the impact of a temperature dependent \\eta/s(T) on the generation of the elliptic flow at both RHIC and LHC. Finally we show that the transport approach, thanks to its wide validity range, is able to describe naturally the rise - fall and saturation of the v_2(p_T) observed at LHC.

  11. The measurement of cross-linked fracture fluid viscosity using a pipe viscometer 

    E-Print Network [OSTI]

    Vermaelen, John Douglas

    1985-01-01

    THE MEASUREMENT OF CROSS-LINKED FRACTURE FLUID VISCOSITY USING A PIPE VISCOMETER A Thesis by JOHN DOUGLAS VERMAELEN Submitted to the Graduate College of Texas A&M University in partial fulfillment of the requirements for the degr ee..., B. S. , Texas A&M University Chairman of Advisory Committee: Dr. Stephen A. Holditch Due to the increased importance of hydraulic fracture ing as a means of well stimulation, there is a need for a better understanding of the viscous behavior of a...

  12. A Brief Review of Viscosity Models for Slag in Coal Gasification

    SciTech Connect (OSTI)

    Massoudi, Mehrdad; Wang, Ping

    2011-11-01

    Many researchers have defined the phenomenon of 'slagging' as the deposition of ash in the radiative section of a boiler, while 'fouling' refers to the deposition of ash in the convective-pass region. Among the important parameters affecting ash deposition that need to be studied are ash chemistry, its transport, deposit growth, and strength development; removability of the ash deposit; heat transfer mechanisms; and the mode of operation for boilers. The heat transfer at the walls of a combustor depends on many parameters including ash deposition. This depends on the processes or parameters controlling the impact efficiency and the sticking efficiency. For a slagging combustor or furnace, however, the temperatures are so high that much of the coal particles are melted and the molten layer, in turn, captures more particles as it flows. The main problems with ash deposition are reduced heat transfer in the boiler and corrosion of the tubes. Common ways of dealing with these issues are soot blowing and wall blowing on a routine basis; however, unexpected or uncontrolled depositions can also complicate the situation, and there are always locations inaccessible to the use of such techniques. Studies have indicated that slag viscosity must be within a certain range of temperatures for tapping and the membrane wall to be accessible, for example, between 1300 C and 1500 C, the viscosity is approximately 25 Pa {center_dot} s. As the operating temperature decreases, the slag cools and solid crystals begin to form. In such cases the slag should be regarded as a non-Newtonian suspension, consisting of liquid silicate and crystals. A better understanding of the rheological properties of the slag, such as yield stress and shear-thinning, are critical in determining the optimum operating conditions. To develop an accurate heat transfer model in any type of coal combustion or gasification process, the heat transfer and to some extent the rheological properties of ash and slag, especially in high-temperature environments need to be understood and properly modeled. The viscosity of slag and the thermal conductivity of ash deposits are among two of the most important constitutive parameters that need to be studied. The accurate formulation or representations of the (transport) properties of coal (and biomass for co-firing cases) present a special challenge of modeling efforts in computational fluid dynamics applications. In this report, we first provide a brief review of the various approaches taken by different researchers in formulating or obtaining a slag viscosity model. In general, these models are based on experiments. Since slag behaves as a non-linear fluid, we discuss the constitutive modeling of slag and the important parameters that must be studied.

  13. Viscosity Determination of Molten Ash from Low-Grade US Coals

    SciTech Connect (OSTI)

    Zhu, Jingxi; Nakano, Jinichiro; Kaneko, Tetsuya Kenneth; Mu, Haoyuan; Bennett, James P.; Kwong, Kyei-Sing; Rozelle, Peter; Sridhar, Seetharaman

    2012-10-01

    In entrained slagging gasifiers, the fluidity of the molten ash is a critical factor for process control since it affects slag formation, the capture of inorganic constituents, refractory wear, and slag drainage along the gasification chamber walls. The use of western coal, or mixtures of eastern and western coals as gasifier feedstock, is likely to occur as western coals become available and technological issues that hinder their use are being resolved. In the present work, the viscosity of synthetic slags with ash chemistries simulating the western U.S. coals, was experimentally measured at a Po2 = 10- 8 atm in the temperature range of 1773–1573 K (1500–1300 °C) using a rotating-bob viscometer. Alumina spindles and containment crucibles of both alumina and zirconia were used. Crystallization studies of this slag using a confocal scanning laser microscope found that a (Mg,Fe)Al2O4-based spinel precipitated at temperatures below 1723 K (1450 °C), and this agreed with FactSage equilibrium phase prediction. The same spinels were observed in the post-viscometry experiment slags when ZrO2 crucibles were used and assumed to be in equilibrium with the slag at the higher temperatures. Zirconia dissolution resulted in a slight increase in the solid fraction present in slags at lower temperatures, compared to spinel fraction. Crystal precipitation changed the apparent activation energy and required a longer stabilization times for viscosity measurements. The viscosity results were used in predictive equations based on Veytsman and Einstein's models, with critical nucleation temperatures and the solid fraction calculated with FactSage. In the simulated eastern/western coal feedstock blends based on ash compositions, the fractions of the solid precipitates were also calculated using the thermodynamic program FactSage for each blend composition, and the plastic viscosity of each eastern/western coal slag blend was predicted using Veytsman's model and compared to available experimental data.

  14. Global Solutions of Viscous Transonic Flows in Kerr Geometry I: Weak Viscosity Limit

    E-Print Network [OSTI]

    Sandip K. Chakrabarti

    1996-11-04

    We present fully general relativistic equations governing viscous transonic flows in vertical equilibrium in Kerr geometry. We find the complete set of global solutions (both for Optically thick and optically thin flows) in the weak viscosity limit. We show that for a large region of parameter space, centrifugal pressure supported standing shocks can form in accretion and winds very close to the black hole horizon, both for co-rotating and contra-rotating flows. We compute the nature of the shear tensor for complete transonic solutions and discuss the consequences of its reversal properties.

  15. Study of shear viscosity of SU (2)-gluodynamics within lattice simulation

    E-Print Network [OSTI]

    N. Yu. Astrakhantsev; V. V. Braguta; A. Yu. Kotov

    2015-07-22

    This paper is devoted to the study of two-point correlation function of the energy-momentum tensor T_{12}T_{12} for SU(2)-gluodynamics within lattice simulation of QCD. Using multilevel algorithm we carried out the measurement of the correlation function at the temperature T/T_c = 1.2. It is shown that lattice data can be described by spectral functions which interpolate between hydrodynamics at low frequencies and asymptotic freedom at high frequencies. The results of the study of spectral functions allowed us to estimate the ratio of shear viscosity to the entropy density {\\eta}/s = 0.134 +- 0.057.

  16. Shear viscosity to entropy density ratio in the Boltzmann-Uehling-Uhlenbeck model

    E-Print Network [OSTI]

    S. X. Li; D. Q. Fang; Y. G. Ma; C. L. Zhou

    2011-08-11

    The ratio of shear viscosity ($\\eta$) to entropy density ($s$) for an equilibrated system is investigated in intermediate energy heavy ion collisions below 100$A$ MeV within the framework of the Boltzmann-Uehling-Uhlenbeck (BUU) model . After the collision system almost reaches a local equilibration, the temperature, pressure and energy density are obtained from the phase space information and {$\\eta/s$} is calculated using the Green-Kubo formulas. The results show that {$\\eta$}/$s$ decreases with incident energy and tend towards a smaller value around 0.5, which is not so drastically different from the BNL Relativistic Heavy Ion Collider results in the present model.

  17. Bulk viscosity : a study from Polyakov-Nambu-Jona-Lasinio model

    E-Print Network [OSTI]

    Kinkar Saha; Sudipa Upadhaya

    2015-05-01

    We present an extensive study of the bulk viscosity, $\\zeta$ using the framework of Kubo formalism within 2+1 flavored Polyakov-Nambu-Jona-Lasinio model. Alongwith, we have discussed the kinetic approaches in order to estimate the bulk viscous effects in the strongly interacting systems analogous to the situation in various high energy heavy-ion collisions. Our work strengthens the motivation for the proper incorporation of $\\zeta$ into the analysis of such systems. We also provide justification for such incorporation becoming more significant when density is substantially high.

  18. Generalised Smarr Formula and the Viscosity Bound for Einstein-Maxwell-Dilaton Black Holes

    E-Print Network [OSTI]

    Liu, Hai-Shan; Pope, C N

    2015-01-01

    We study the shear viscosity to entropy ratio $\\eta/S$ in the boundary field theories dual to black hole backgrounds in theories of gravity coupled to a scalar field, and generalisations including a Maxwell field and non-minimal scalar couplings. Motivated by the observation in simple examples that the saturation of the $\\eta/S\\ge 1/(4\\pi)$ bound is correlated with the existence of a generalised Smarr relation for the planar black-hole solutions, we investigate this in detail for the general black-hole solutions in these theories, focusing especially on the cases where the scalar field plays a non-trivial role and gives rise to an additional parameter in the space of solutions. We find that a generalised Smarr relation holds in all cases, and in fact it can be viewed as the bulk gravity dual of the statement of the saturation of the viscosity to entropy bound. We obtain the generalised Smarr relation, whose existence depends upon a scaling symmetry of the planar black-hole solutions, by two different but rela...

  19. Vertical two-phase flow regimes and pressure gradients: Effect of viscosity

    SciTech Connect (OSTI)

    Da Hlaing, Nan; Sirivat, Anuvat; Siemanond, Kitipat [The Petroleum and Petrochemical College, Chulalongkorn University, Soi Chula 12, Phayathai Road, Pathumwan, Bangkok 10330 (Thailand); Wilkes, James O. [Department of Chemical Engineering, The University of Michigan, Ann Arbor, MI 48109-2136 (United States)

    2007-05-15

    The effect of liquid viscosity on the flow regimes and the corresponding pressure gradients along the vertical two-phase flow was investigated. Experiment was carried out in a vertical transparent tube of 0.019 m in diameter and 3 m in length and the pressure gradients were measured by a U-tube manometer. Water and a 50 vol.% glycerol solution were used as the working fluids whose kinematic viscosities were 0.85 x 10{sup -6} and 4.0 x 10{sup -6} m{sup 2}/s, respectively. In our air-liquid annular two-phase flow, the liquid film of various thicknesses flowed adjacent to the wall and the gas phase flowed at the center of the tube. The superficial air velocity, j{sub air}, was varied between 0.0021 and 58.7 m/s and the superficial liquid velocity, j{sub liquid}, was varied between 0 and 0.1053 m/s. In the bubble, the slug and the slug-churn flow regimes, the pressure gradients decreased with increasing Reynolds number. But in the annular and the mist flow regimes, pressure gradients increased with increasing Reynolds number. Finally, the experimentally measured pressure gradient values were compared and are in good agreement with the theoretical values. (author)

  20. Reconstructing Past Solar Activity using Meridian Solar Observations: the Case of the Royal Observatory of the Spanish Navy (1833-1840)

    E-Print Network [OSTI]

    Vaquero, J M

    2014-01-01

    Solar meridian observations have been used to evaluate the solar activity of the past. Some important examples are the solar meridian observations made at the Basilica of San Petronio in Bologna by several astronomers and the observations made by Hevelius published in his book Machina Coelestis. However, we do not know whether these observations, which were not aimed to estimate the solar activity, are reliable for evaluating solar activity. In this paper, we present the marginal notes about sunspots that are included in the manuscripts of the meridian solar observations made at the Royal Observatory of the Spanish Navy during the period 1833-1840. We compare these observations with other solar activity indices such as sunspot area and number. Our conclusion is that solar meridian observations should be used with extreme caution to evaluate past solar activity.

  1. Solvability via viscosity solutions for a model of phase transitions driven by configurational forces

    E-Print Network [OSTI]

    Zhu, Peicheng

    2009-01-01

    In the present article, we are interested in an initial boundary value problem for a coupled system of partial differential equations arising in martensitic phase transition theory of elastically deformable solid materials, e.g., steel. This model was proposed and investigated in previous work by Alber and Zhu in which the weak solutions are defined in a standard way, however the key technique is not applicable to multi-dimensional problem. Intending to solve this multi-dimensional problem and to investigate the sharp interface limits of our models, we thus define weak solutions in a different way by using the notion of viscosity solution, then prove the existence of weak solutions to this problem in one space dimension, yet the multi-dimensional problem is still open.

  2. The effects of plasma diffusion and viscosity on turbulent instability growth

    SciTech Connect (OSTI)

    Haines, Brian M., E-mail: bmhaines@lanl.gov; Vold, Erik L.; Molvig, Kim; Aldrich, Charles; Rauenzahn, Rick [Los Alamos National Laboratory, MS T087, Los Alamos, New Mexico 87545 (United States)

    2014-09-15

    We perform two-dimensional simulations of strongly–driven compressible Rayleigh–Taylor and Kelvin–Helmholtz instabilities with and without plasma transport phenomena, modeling plasma species diffusion, and plasma viscosity in order to determine their effects on the growth of the hydrodynamic instabilities. Simulations are performed in hydrodynamically similar boxes of varying sizes, ranging from 1 ?m to 1?cm in order to determine the scale at which plasma effects become important. Our results suggest that these plasma effects become noticeable when the box size is approximately 100 ?m, they become significant in the 10 ?m box, and dominate when the box size is 1 ?m. Results suggest that plasma transport may be important at scales and conditions relevant to inertial confinement fusion, and that a plasma fluid model is capable of representing some of the kinetic transport effects.

  3. A numerical study of fluids with pressure dependent viscosity flowing through a rigid porous media

    E-Print Network [OSTI]

    Nakshatrala, K B

    2009-01-01

    In this paper we consider modifications to Darcy's equation wherein the drag coefficient is a function of pressure, which is a realistic model for technological applications like enhanced oil recovery and geological carbon sequestration. We first outline the approximations behind Darcy's equation and the modifications that we propose to Darcy's equation, and derive the governing equations through a systematic approach using mixture theory. We then propose a stabilized mixed finite element formulation for the modified Darcy's equation. To solve the resulting nonlinear equations we present a solution procedure based on the consistent Newton-Raphson method. We solve representative test problems to illustrate the performance of the proposed stabilized formulation. One of the objectives of this paper is also to show that the dependence of viscosity on the pressure can have a significant effect both on the qualitative and quantitative nature of the solution.

  4. Bulk viscosity in a hyperonic star and r-mode instability

    SciTech Connect (OSTI)

    Jha, T. K.; Mishra, H.; Sreekanth, V.

    2010-08-15

    We consider a rotating neutron star with the presence of hyperons in its core. We use an equation of state in an effective chiral model within the relativistic mean-field approximation. We calculate the hyperonic bulk viscosity coefficient caused by nonleptonic weak interactions. By estimating the damping time scales of the dissipative processes, we investigate its role in the suppression of gravitationally driven instabilities in the r mode. We observe that r-mode instability remains very significant for hyperon core temperatures of around 10{sup 8} K, which results in a comparatively larger instability window. We find that such instability can reduce the angular velocity of the rapidly rotating star considerably up to {approx}0.04{Omega}{sub K}, with {Omega}{sub K} as the Keplerian angular velocity.

  5. Three-fluid, three-dimensional magnetohydrodynamic solar wind model with eddy viscosity and turbulent resistivity

    SciTech Connect (OSTI)

    Usmanov, Arcadi V.; Matthaeus, William H.; Goldstein, Melvyn L.

    2014-06-10

    We have developed a three-fluid, three-dimensional magnetohydrodynamic solar wind model that incorporates turbulence transport, eddy viscosity, turbulent resistivity, and turbulent heating. The solar wind plasma is described as a system of co-moving solar wind protons, electrons, and interstellar pickup protons, with separate energy equations for each species. Numerical steady-state solutions of Reynolds-averaged solar wind equations coupled with turbulence transport equations for turbulence energy, cross helicity, and correlation length are obtained by the time relaxation method in the corotating with the Sun frame of reference in the region from 0.3 to 100 AU (but still inside the termination shock). The model equations include the effects of electron heat conduction, Coulomb collisions, photoionization of interstellar hydrogen atoms and their charge exchange with the solar wind protons, turbulence energy generation by pickup protons, and turbulent heating of solar wind protons and electrons. The turbulence transport model is based on the Reynolds decomposition and turbulence phenomenologies that describe the conversion of fluctuation energy into heat due to a turbulent cascade. In addition to using separate energy equations for the solar wind protons and electrons, a significant improvement over our previous work is that the turbulence model now uses an eddy viscosity approximation for the Reynolds stress tensor and the mean turbulent electric field. The approximation allows the turbulence model to account for driving of turbulence by large-scale velocity gradients. Using either a dipole approximation for the solar magnetic field or synoptic solar magnetograms from the Wilcox Solar Observatory for assigning boundary conditions at the coronal base, we apply the model to study the global structure of the solar wind and its three-dimensional properties, including embedded turbulence, heating, and acceleration throughout the heliosphere. The model results are compared with plasma and magnetic field observations on WIND, Ulysses, and Voyager 2 spacecraft.

  6. High Temperature, high pressure equation of state density correlations and viscosity correlations

    SciTech Connect (OSTI)

    Tapriyal, D.; Enick, R.; McHugh, M.; Gamwo, I.; Morreale, B.

    2012-07-31

    Global increase in oil demand and depleting reserves has derived a need to find new oil resources. To find these untapped reservoirs, oil companies are exploring various remote and harsh locations such as deep waters in Gulf of Mexico, remote arctic regions, unexplored deep deserts, etc. Further, the depth of new oil/gas wells being drilled has increased considerably to tap these new resources. With the increase in the well depth, the bottomhole temperature and pressure are also increasing to extreme values (i.e. up to 500 F and 35,000 psi). The density and viscosity of natural gas and crude oil at reservoir conditions are critical fundamental properties required for accurate assessment of the amount of recoverable petroleum within a reservoir and the modeling of the flow of these fluids within the porous media. These properties are also used to design appropriate drilling and production equipment such as blow out preventers, risers, etc. With the present state of art, there is no accurate database for these fluid properties at extreme conditions. As we have begun to expand this experimental database it has become apparent that there are neither equations of state for density or transport models for viscosity that can be used to predict these fundamental properties of multi-component hydrocarbon mixtures over a wide range of temperature and pressure. Presently, oil companies are using correlations based on lower temperature and pressure databases that exhibit an unsatisfactory predictive capability at extreme conditions (e.g. as great as {+-} 50%). From the perspective of these oil companies that are committed to safely producing these resources, accurately predicting flow rates, and assuring the integrity of the flow, the absence of an extensive experimental database at extreme conditions and models capable of predicting these properties over an extremely wide range of temperature and pressure (including extreme conditions) makes their task even more daunting.

  7. WindDriven Currents in a Sea with a Variable Eddy Viscosity Calculated via a SincGalerkin

    E-Print Network [OSTI]

    Bowers, Kenneth L.

    Wind­Driven Currents in a Sea with a Variable Eddy Viscosity Calculated via a Sinc.S.A. November 17, 1999 Short title: Wind­Driven Currents Calculated via a Sinc­Galerkin Technique Keywords: wind, a Sinc­Galerkin procedure is used to infer the sensitivity of wind­driven subsur­ face currents

  8. PHYSICAL REVIEW E 85, 066402 (2012) Frequency-dependent shear viscosity of a liquid two-dimensional dusty plasma

    E-Print Network [OSTI]

    Goree, John

    2012-01-01

    of a liquid for a particular time scale -1 . A simple model of the frequency-dependent viscosity is predicted-feng@uiowa.edu magnetically in a Penning trap [16], vortex arrays in the mixed state of type II superconductors [17], and strongly coupled dusty plasmas levitated in a single layer [11,18]. A dusty plasma [19­25], sometimes

  9. PHYSICAL REVIEW E 87, 012403 (2013) Layer with reduced viscosity at water-oil interfaces probed by fluorescence correlation spectroscopy

    E-Print Network [OSTI]

    Chan, Derek Y C

    2013-01-01

    PHYSICAL REVIEW E 87, 012403 (2013) Layer with reduced viscosity at water-oil interfaces probed-dimensional diffusion of isolated molecular tracers at the water­n-alkane interface was studied with fluorescence. INTRODUCTION Water is the most common liquid on Earth and con- stitutes a major part of living organisms

  10. PHYS 101 Lecture 29x -Viscosity 29x -1 2001 by David Boal, Simon Fraser University. All rights reserved; further copying or resale is strictly prohibited.

    E-Print Network [OSTI]

    Boal, David

    viscosity . In Lecture 8, this viscosity appears in Stokes' Law for the drag force on a sphere of radius R moving at a speed v FDRAG = 6Rv. The larger , the larger the drag force, all other things being equal of which the boundary exerts drag on the fluid motion. This is similar to the frictional force between two

  11. Thermal convection with large viscosity variation in an enclosure with localized heating

    SciTech Connect (OSTI)

    Chu, T.Y.; Hickox, C.E.

    1988-01-01

    The present study is undertaken in order to gain an understanding of convective transport in a magma chamber. We have chosen to represent the chamber by an enclosure with localized heating from below. Results of both laboratory experiments and computer modeling are reported. The experimental apparatus consists of a transparent enclosure with a square planform. An electrically heated strip, with a width equal to one-fourth of the length of a side of the enclosure, is centered on the lower inside surface of the enclosure. For the experiments reported here, the top of the fluid layer is maintained at a constant temperature and the depth of the layer is equal to the width of the heated strip. The large viscosity variation characteristic of magma convection is simulated by using corn syrup as the working fluid. Measured velocity and temperature distribution as well as overall heat transfer rates are presented. The experiment is numerically simulated through use of a finite element computer program. Numerically predicted streamlines, isotherms, and velocity distributions are presented for the transverse vertical midplane of the enclosure. Good agreement is demonstrated between predictions and measurements. 23 refs., 8 figs., 2 tabs.

  12. Shear viscosity $?$ to electric conductivity $?_{el}$ ratio for the Quark-Gluon Plasma

    E-Print Network [OSTI]

    A. Puglisi; S. Plumari; V. Greco

    2015-05-04

    The transport coefficients of strongly interacting matter are currently subject of intense theoretical and phenomenological studies due to their relevance for the characterization of the quark-gluon plasma produced in ultra relativistic heavy-ion collisions (uRHIC). We discuss the connection between the shear viscosity to entropy density ratio, $\\eta/s$, and the electric conductivity, $\\sigma_{el}$. Once the relaxation time is tuned to have a minimum value of $\\eta/s=1/4\\pi$ near the critical temperature $T_c$, one simultaneously predicts $\\sigma_{el}/T$ very close to recent lQCD data. More generally, we discuss why the ratio of $(\\eta/s)/(\\sigma_{el}/T)$ supplies a measure of the quark to gluon scattering rates whose knowledge would allow to significantly advance in the understanding of the QGP phase. We also predict that $(\\eta/s)/(\\sigma_{el}/T)$, independently on the running coupling $\\alpha_s(T)$, should increase up to about $\\sim 20$ for $T \\rightarrow T_c$, while it goes down to a nearly flat behavior around $\\simeq 4$ for $T \\geq 4\\, T_c$. Therefore we in general predict a stronger T dependence of $\\sigma_{el}/T$ with respect to $\\eta/s$ that in a quasiparticle approach is constrained by lQCD thermodynamics. A conformal theory, instead, predicts a similar T dependence of $\\eta/s$ and $\\sigma_{el}/T$.

  13. A note on the meaning of mixture viscosity using the classical continuum theories of mixtures

    SciTech Connect (OSTI)

    Massoudi, Mehrdad

    2008-07-01

    In this paper we provide a brief review of the basic equations for the flow of two linearly viscous fluids using the mixture theory equations given in Atkin and Craine [R.J. Atkin, R.E. Craine, Continuum theories of mixtures: applications, J. Inst. Math. Appl. 17 (1976) 153; R.J. Atkin, R.E. Craine, Continuum theories of mixtures: basic theory and historical development, Quart. J. Mech. Appl. Math. 29 (1976) 290]. We then look at certain principles (or more accurately assumptions) due to Truesdell [C. Truesdell, Sulle basi della thermomeccanica, Rand Lincei, Series 8 22 (1957) 33–38, and 158–166] and Adkins [J.E. Adkins, Non-linear diffusion, 1. Diffusion and flow of mixtures of fluids, Philos. Trans. Roy. Soc. London A 255 (1963) 607–633; J.E. Adkins, Non-linear diffusion, 2. Constitutive equations for mixtures of isotropic fluids, Philos. Trans. Roy. Soc. London A 255 (1963) 635–648] and show that if the ‘assumption of the limiting cases’ of Adkins is to hold, then a very specific structure on the material properties of the two fluids has to be imposed. This new hypothesis provides one such condition for this requirement. An attempt is made to derive a relationship for the mixture viscosity using these ideas.

  14. Direct Numerical Simulation of Surfactant-Stabilized Emulsions Morphology and Shear Viscosity in Starting Shear Flow

    SciTech Connect (OSTI)

    Roar Skartlien; Espen Sollum; Andreas Akselsen; Paul Meakin

    2012-07-01

    A 3D lattice Boltzmann model for two-phase flow with amphiphilic surfactant was used to investigate the evolution of emulsion morphology and shear stress in starting shear flow. The interfacial contributions were analyzed for low and high volume fractions and varying surfactant activity. A transient viscoelastic contribution to the emulsion rheology under constant strain rate conditions was attributed to the interfacial stress. For droplet volume fractions below 0.3 and an average capillary number of about 0.25, highly elliptical droplets formed. Consistent with affine deformation models, gradual elongation of the droplets increased the shear stress at early times and reduced it at later times. Lower interfacial tension with increased surfactant activity counterbalanced the effect of increased interfacial area, and the net shear stress did not change significantly. For higher volume fractions, co-continuous phases with a complex topology were formed. The surfactant decreased the interfacial shear stress due mainly to advection of surfactant to higher curvature areas. Our results are in qualitative agreement with experimental data for polymer blends in terms of transient interfacial stresses and limited enhancement of the emulsion viscosity at larger volume fractions where the phases are co-continuous.

  15. Linearized fluid/gravity correspondence: from shear viscosity to all order hydrodynamics

    E-Print Network [OSTI]

    Yanyan Bu; Michael Lublinsky

    2015-03-09

    In ref. \\cite{1406.7222}, we reported a construction of all order linearized fluid dynamics with strongly coupled $\\mathcal{N}=4$ super-Yang-Mills theory as underlying microscopic description. The linearized fluid/gravity correspondence makes it possible to resum all order derivative terms in the fluid stress tensor. Dissipative effects are fully encoded by the shear term and a new one, emerging starting from third order in hydrodynamic derivative expansion. In this work, we provide all computational details omitted in \\cite{1406.7222} and present additional results. We derive closed-form linear holographic RG flow-type equations for momenta-dependent transport coefficient functions. Generalized Navier-Stokes equations are shown to emerge from the constraint components of the bulk Einstein equations. We perturbatively solve the RG equations for the viscosity functions, up to third order in derivative expansion, and up to this order compute spectrum of small fluctuations. Finally, we solve the RG equations numerically, thus accounting for all order derivative terms in the boundary stress tensor.

  16. A biomechanical model of swallowing for understanding the influence of saliva and food bolus viscosity on flavour release

    E-Print Network [OSTI]

    De Loubens, Clément; Doyennette, Marion; Tréléa, Ioan Cristian; Souchon, Isabelle

    2013-01-01

    After swallowing a liquid or a semi-liquid food product, a thin film responsible for the dynamic profile of aroma release coats the pharyngeal mucosa. The objective of the present article was to understand and quantify physical mechanisms explaining pharyngeal mucosa coating. An elastohydrodynamic model of swallowing was developed for Newtonian liquids that focused on the most occluded region of the pharyngeal peristaltic wave. The model took lubrication by a saliva film and mucosa deformability into account. Food bolus flow rate and generated load were predicted as functions of three dimensionless variables: the dimensionless saliva flow rate, the viscosity ratio between saliva and the food bolus, and the elasticity number. Considering physiological conditions, the results were applied to predict aroma release kinetics. Two sets of conditions were distinguished. The first one was obtained when the saliva film is thin, in which case food bolus viscosity has a strong impact on mucosa coating and on flavour rel...

  17. Viscosity of NaCl and other solutions up to 350{sup 0}C and 50 MPa pressures

    SciTech Connect (OSTI)

    Phillips, S.L.; Ozbek, H.; Igbene, A.; Litton, G.

    1980-11-01

    Experimental values for the viscosity of sodium chloride solutions are critically reviewed for application to geothermal energy. Data published recently by Kestin, Los, Pepinov, and Semenyuk as well as earlier data are included. A theoretically based equation for calculating relative viscosity was developed, and used to generate tables of smoothed values over the ranges 20{sup 0}C to 350{sup 0}C, 0 to 5 m and pressures up to 50 MPa. The equation reproduces selected data to an average of better than 2 percent over the entire range of temperatures and pressures. Selected tables of data are included for KCl up to 150{sup 0}C, CaCl{sub 2} solutions up to 100{sup 0}C, and for mixtures of NaCl with KCl and CaCl{sub 2}. Recommendations are given for additional data needs.

  18. NAVY PRECISION OPTICAL INTERFEROMETER OBSERVATIONS OF THE EXOPLANET HOST {kappa} CORONAE BOREALIS AND THEIR IMPLICATIONS FOR THE STAR'S AND PLANET'S MASSES AND AGES

    SciTech Connect (OSTI)

    Baines, Ellyn K.; Armstrong, J. Thomas [Remote Sensing Division, Naval Research Laboratory, 4555 Overlook Avenue SW, Washington, DC 20375 (United States); Van Belle, Gerard T., E-mail: ellyn.baines@nrl.navy.mil [Lowell Observatory, Flagstaff, AZ 86001 (United States)

    2013-07-01

    We used the Navy Precision Optical Interferometer to measure the limb-darkened angular diameter of the exoplanet host star {kappa} CrB and obtained a value of 1.543 {+-} 0.009 mas. We calculated its physical radius (5.06 {+-} 0.04 R{sub Sun }) and used photometric measurements from the literature with our diameter to determine {kappa} CrB's effective temperature (4788 {+-} 17 K) and luminosity (12.13 {+-} 0.09 L{sub Sun }). We then placed the star on an Hertzsprung-Russell diagram to ascertain the star's age (3.42{sup +0.32}{sub -0.25} Gyr) and mass (1.47 {+-} 0.04 M{sub Sun }) using a metallicity of [Fe/H] = +0.15. With this mass, we calculated the system's mass function with the orbital elements from a variety of sources, which produced a range of planetary masses: m{sub p}sin i = 1.61-1.88 M{sub Jup}. We also updated the extent of the habitable zone for the system using our new temperature.

  19. Application of the base catalyzed decomposition process to treatment of PCB-contaminated insulation and other materials associated with US Navy vessels. Final report

    SciTech Connect (OSTI)

    Schmidt, A.J.; Zacher, A.H.; Gano, S.R.

    1996-09-01

    The BCD process was applied to dechlorination of two types of PCB-contaminated materials generated from Navy vessel decommissioning activities at Puget Sound Naval Shipyard: insulation of wool felt impregnated with PCB, and PCB-containing paint chips/debris from removal of paint from metal surfaces. The BCD process is a two-stage, low-temperature chemical dehalogenation process. In Stage 1, the materials are mixed with sodium bicarbonate and heated to 350 C. The volatilized halogenated contaminants (eg, PCBs, dioxins, furans), which are collected in a small volume of particulates and granular activated carbon, are decomposed by the liquid-phase reaction (Stage 2) in a stirred-tank reactor, using a high-boiling-point hydrocarbon oil as the reaction medium, with addition of a hydrogen donor, a base (NaOH), and a catalyst. The tests showed that treating wool felt insulation and paint chip wastes with Stage 2 on a large scale is feasible, but compared with current disposal costs for PCB-contaminated materials, using Stage 2 would not be economical at this time. For paint chips generated from shot/sand blasting, the solid-phase BCD process (Stage 1) should be considered, if paint removal activities are accelerated in the future.

  20. Bag breakup of low viscosity drops in the presence of a continuous air jet

    SciTech Connect (OSTI)

    Kulkarni, V. Sojka, P. E.

    2014-07-15

    This work examines the breakup of a single drop of various low viscosity fluids as it deforms in the presence of continuous horizontal air jet. Such a fragmentation typically occurs after the bulk liquid has disintegrated upon exiting the atomizer and is in the form of an ensemble of drops which undergo further breakup. The drop deformation and its eventual disintegration is important in evaluating the efficacy of a particular industrial process, be it combustion in automobile engines or pesticide spraying in agricultural applications. The interplay between competing influences of surface tension and aerodynamic disruptive forces is represented by the Weber number, We, and Ohnesorge number, Oh, and used to describe the breakup morphology. The breakup pattern considered in our study corresponds to that of a bag attached to a toroidal ring which occurs from ?12 < We < ?16. We aim to address several issues connected with this breakup process and their dependence on We and Oh which have been hitherto unexplored. The We boundary at which breakup begins is theoretically determined and the expression obtained, We=12(1+2/3Oh{sup 2}), is found to match well with experimental data ([L.-P. Hsiang and G. M. Faeth, Int. J. Multiphase Flow 21(4), 545–560 (1995)] and [R. S. Brodkey, “Formation of drops and bubbles,” in The Phenomena of Fluid Motions (Addison-Wesley, Reading, 1967)]). An exponential growth in the radial extent of the deformed drop and the streamline dimension of the bag is predicted by a theoretical model and confirmed by experimental findings. These quantities are observed to strongly depend on We. However, their dependence on Oh is weak.

  1. Development of neural network models for the prediction of dewpoint pressure of retrograde gases and saturated oil viscosity of black oil systems 

    E-Print Network [OSTI]

    Gonzalez Zambrano, Alfredo Antonio

    2002-01-01

    Accurate prediction of gas condensate and crude oil fluid properties are critical elements in reservoir-engineering calculations. Dewpoint pressure of gas condensate reservoirs and oil viscosity of black oil systems are some of the important...

  2. Stress relaxation and creep experiments with the atomic force microscope: a unified method to calculate elastic moduli and viscosities of biomaterials (and cells)

    E-Print Network [OSTI]

    Moreno-Flores, Susana; Vivanco, Maria dM; Toca-Herrera, Jose Luis

    2010-01-01

    We show that the atomic force microscope can perform stress relaxation and creep compliance measurements on living cells. We propose a method to obtain the mechanical properties of the studied biomaterial: the relaxation time, the elastic moduli and the viscosity.

  3. Exploratory Characterization of a Perfluoropolyether Oil as a Possible Viscosity Standard at Deepwater Production Conditions of 533 K and 241 MPa

    SciTech Connect (OSTI)

    Baled, Hseen O.; Tapriyal, Deepak; Morreale, Bryan D.; Soong, Yee; Gamwo, Isaac; Krukonis, Val; Bamgbade, Babatunde A.; Wu, Yue; McHugh, Mark A.; Burgess, Ward A.; M Enick, Robert M.

    2013-10-01

    DuPont’s perfluoropolyether oil Krytox® GPL 102 is a promising candidate for the high-temperature, high-pressure Deepwater viscosity standard (DVS). The preferred DVS is a thermally stable liquid that exhibits a viscosity of roughly 20 mPa?s at 533 K and 241 MPa; a viscosity value representative of light oils found in ultra-deep formations beneath the deep waters of the Gulf of Mexico. A windowed rolling-ball viscometer designed by our team is used to determine the Krytox® GPL 102 viscosity at pressures to 245 MPa and temperatures of 311 K, 372 K, and 533 K. At 533 K and 243 MPa, the Krytox® GPL 102 viscosity is (27.2±1.3)mPa?s . The rolling-ball viscometer viscosity results for Krytox® GPL 102 are correlated with an empirical 10-parameter surface fitting function that yields an MAPD of 3.9 %. A Couette rheometer is also used to measure the Krytox® GPL 102 viscosity, yielding a value of (26.2±1)mPa?s at 533 K and 241 MPa. The results of this exploratory study suggest that Krytox® GPL 102 is a promising candidate for the DVS, primarily because this fluoroether oil is thermally stable and exhibits a viscosity closer to the targeted value of 20 mPa ? s at 533 K and 241 MPa than any other fluid reported to date. Nonetheless, further studies must be conducted by other researcher groups using various types of viscometers and rheometers on samples of Krytox GPL® 102 from the same lot to further establish the properties of Krytox GPL® 102.

  4. Chemical and Microbial Characterization of North Slope Viscous Oils to Assess Viscosity Reduction and Enhanced Recovery

    SciTech Connect (OSTI)

    Shirish Patil; Abhijit Dandekar; Mary Beth Leigh

    2008-12-31

    A large proportion of Alaska North Slope (ANS) oil exists in the form of viscous deposits, which cannot be produced entirely using conventional methods. Microbially enhanced oil recovery (MEOR) is a promising approach for improving oil recovery for viscous deposits. MEOR can be achieved using either ex situ approaches such as flooding with microbial biosurfactants or injection of exogenous surfactant-producing microbes into the reservoir, or by in situ approaches such as biostimulation of indigenous surfactant-producing microbes in the oil. Experimental work was performed to analyze the potential application of MEOR to the ANS oil fields through both ex situ and in situ approaches. A microbial formulation containing a known biosurfactant-producing strain of Bacillus licheniformis was developed in order to simulate MEOR. Coreflooding experiments were performed to simulate MEOR and quantify the incremental oil recovery. Properties like viscosity, density, and chemical composition of oil were monitored to propose a mechanism for oil recovery. The microbial formulation significantly increased incremental oil recovery, and molecular biological analyses indicated that the strain survived during the shut-in period. The indigenous microflora of ANS heavy oils was investigated to characterize the microbial communities and test for surfactant producers that are potentially useful for biostimulation. Bacteria that reduce the surface tension of aqueous media were isolated from one of the five ANS oils (Milne Point) and from rock oiled by the Exxon Valdez oil spill (EVOS), and may prove valuable for ex situ MEOR strategies. The total bacterial community composition of the six different oils was evaluated using molecular genetic tools, which revealed that each oil tested possessed a unique fingerprint indicating a diverse bacterial community and varied assemblages. Collectively we have demonstrated that there is potential for in situ and ex situ MEOR of ANS oils. Future work should focus on lab and field-scale testing of ex situ MEOR using Bacillus licheniformis as well as the biosurfactant-producing strains we have newly isolated from the Milne Point reservoir and the EVOS environment.

  5. On the computational modeling of the viscosity of colloidal dispersions and its relation with basic molecular interactions

    E-Print Network [OSTI]

    A. Gama Goicochea; M. A. Balderas Altamirano; R. Lopez-Esparza; M. A. Waldo; E. Perez

    2015-06-20

    The connection between fundamental interactions acting in molecules in a fluid and macroscopically measured properties, such as the viscosity between colloidal particles coated with polymers, is studied here. The role that hydrodynamic and Brownian forces play in colloidal dispersions is also discussed. It is argued that many body systems in which all these interactions take place can be accurately solved using computational simulation tools. One of those modern tools is the technique known as dissipative particle dynamics, which incorporates Brownian and hydrodynamic forces, as well as basic conservative interactions. A case study is reported, as an example of the applications of this technique, which consists of the prediction of the viscosity and friction between two opposing parallel surfaces covered with polymer chains, under the influence of a steady flow. This work is intended to serve as an introduction to the subject of colloidal dispersions and computer simulations, for last year undergraduate students and beginning graduate students who are interested in beginning research in soft matter systems. To that end, a computational code is included that students can use right away to study complex fluids in equilibrium.

  6. Results of the IEA Round Robin on Viscosity and Aging of Fast Pyrolysis Bio-oils: Long-Term Tests and Repeatability

    SciTech Connect (OSTI)

    Elliott, Douglas C.; Oasmaa, Anja; Meier, Dietrich; Preto, Fernando; Bridgwater, Anthony V.

    2012-11-06

    An international round robin study of the viscosity and aging of fast pyrolysis bio-oil has been undertaken recently and this work is an outgrowth from that effort. Two bio-oil samples were distributed to the laboratories for aging tests and extended viscosity studies. The accelerated aging test was defined as the change in viscosity of a sealed sample of bio-oil held for 24 h at 80 °C. The test was repeated 10 times over consecutive days to determine the repeatability of the method. Other bio-oil samples were placed in storage at three temperatures, 21 °C, 4 °C and -17 °C for a period up to a year to evaluate the change in viscosity. The variation in the results of the aging test was shown to be low within a given laboratory. Storage of bio-oil under refrigeration can minimize the amount of change in viscosity. The accelerated aging test gives a measure of change similar to that of 6-12 months of storage at room temperature. These results can be helpful in setting standards for use of bio-oil, which is just coming into the marketplace.

  7. spe471-03 page29 INTRODUCTION

    E-Print Network [OSTI]

    Bilham, Roger

    seismic risk, Sindh, Pakistan Roger Bilham Cooperative Institute for Research in Environmental Science Department of Civil Engineering, NED University of Engineering and Technology, Karachi 75270, Pakistan ABSTRACT Mansurah, the eighth-century Arabic capital of Sindh province, Pakistan, flour- ished for a mere

  8. spe379-10 page 151 INTRODUCTION

    E-Print Network [OSTI]

    Paytan, Adina

    ., and Wankel, S.D., 2004, Using sulfur isotopes to elucidate the origin of barite associated with high organic-UGR), Campus Fuentenueva, 18002 Granada, Spain M. Eagle A. Ivy S.D. Wankel Department of Geological

  9. SPE Energia S A | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX E LIST OFAMERICA'SHeavyAgency (IRENA)OptionsEquivalentB Energy Company

  10. Marine Geophysics: A Navy Symposium

    E-Print Network [OSTI]

    Shor, Elizabeth N; Ebrahimi, Carolyn L

    1987-01-01

    electrical polarization. Geophysics 22:660-687. Vacquier,Raitt, R. W. 1964. Geophysics of the South Pacific.Research in Geophysics 2:223-241. Francis, T. J. G. , and R.

  11. Marine Geophysics: A Navy Symposium

    E-Print Network [OSTI]

    Shor, Elizabeth N; Ebrahimi, Carolyn L

    1987-01-01

    refraction studies of Eniwetok Atoll, U.S. Geol. Surv. Profrefraction studies of Eniwetok Atoll, U.S. Geol. Surv. Prof

  12. navy | National Nuclear Security Administration

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power AdministrationRobust,Field-effectWorkingLosThe 26th AnnualHistoryMIII:National Laboratory Research Networknavy

  13. Topical viscosity control for light hydrocarbon displacing fluids in petroleum recovery and in fracturing fluids for well stimulation

    DOE Patents [OSTI]

    Heller, John P. (Socorro, NM); Dandge, Dileep K. (Socorro, NM)

    1986-01-01

    Solvent-type flooding fluids comprising light hydrocarbons in the range of ethane to hexane (and mixtures thereof) are used to displace crude oil in formations having temperatures of about 20 degrees to about 150 degrees Centigrade and pressures above about 650 psi, the light hydrocarbons having dissolved therein from about 0.05% to about 3% of an organotin compound of the formula R.sub.3 SnF where each R is independently an alkyl, aryl or alkyaryl group from 3 to 12 carbon atoms. Under the pressures and temperatures described, the organotin compounds become pentacoordinated and linked through the electronegative bridges, forming polymers within the light hydrocarbon flooding media to render them highly viscous. Under ambient conditions, the viscosity control agents will not readily be produced from the formation with either crude oil or water, since they are insoluble in the former and only sparingly soluble in the latter.

  14. Final Report - IHLW PCT, Spinel T1%, Electrical Conductivity, and Viscosity Model Development, VSL-07R1240-4

    SciTech Connect (OSTI)

    Kruger, Albert A.; Piepel, Gregory F.; Landmesser, S. M.; Pegg, I. L.; Heredia-Langner, Alejandro; Cooley, Scott K.; Gan, H.; Kot, W. K.

    2013-11-13

    This report is the last in a series of currently scheduled reports that presents the results from the High Level Waste (HLW) glass formulation development and testing work performed at the Vitreous State Laboratory (VSL) of the Catholic University of America (CUA) and the development of IHLW property-composition models performed jointly by Pacific Northwest National Laboratory (PNNL) and VSL for the River Protection Project-Waste Treatment and Immobilization Plant (RPP-WTP). Specifically, this report presents results of glass testing at VSL and model development at PNNL for Product Consistency Test (PCT), one-percent crystal fraction temperature (T1%), electrical conductivity (EC), and viscosity of HLW glasses. The models presented in this report may be augmented and additional validation work performed during any future immobilized HLW (IHLW) model development work. Completion of the test objectives is addressed.

  15. Computer simulator of coiled tubing wellbore cleanouts in deviated wells recommends optimum pump rate and fluid viscosity

    SciTech Connect (OSTI)

    Walton, I.C.

    1995-12-31

    Key factors in the efficient removal of sand fill from deviated wells are the proper selection of a fluid and the pump rates. The operation should be designed to (1) reduce or eliminate the formation of beds of particles in the annulus between the casing and tubing, (2) maintain the particles in suspension and (3) transport the fill to the surface. A new design tool for coiled tubing (CT) cleanouts in deviated wells has been developed. Based on a mechanistic model of particle transport in deviated wells, it predicts the conditions under which a particle bed is formed, calculates the depth of the bed and determines whether the bed slides upward, remains stationary or slides back down the well. Moreover, it calculates the minimum pump rate required to achieve complete suspension of the fill for different fluid viscosities, sand pick-up rates and deviation angles, thereby allowing a simple assessment of the optimum design parameters.

  16. Legacy Compliance Final Report: Results of the Navy/Encapo Soil Stabilization Study at the Nevada Test Site, Nye County, Nevada

    SciTech Connect (OSTI)

    Desotell, Lloyd; Anderson, David; Rawlinson, Stuart; Hudson, David; Yucel, Vefa

    2008-03-01

    Historic atmospheric testing of nuclear devices at the Nevada Test Site (NTS) has resulted in large areas of plutonium-contaminated surface soils. The potential transport of these contaminated soils to onsite and offsite receptors is a concern to the land steward and local stakeholders. The primary transport pathways of interest at the NTS are sediment entrained in surface water runoff and windblown dust. This project was initially funded by the U.S. Navy and subsequently funded by the USDOE Stockpile Stewardship Program. Field tests were conducted over a 20.5 month period to evaluate the efficacy of an organic-based, surface applied emulsion to reduce sediment transport from plutonium-contaminated soils. The patented emulsion was provided by Encapco Technologies LLC. Field tests were conducted within the SMOKY radioactive contamination area (CA). The SMOKY above ground nuclear test was conducted on 08/31/1957, with a reported yield of 44 kilotons and was located at N 37 degrees 10.5 minutes latitude and W 116 degrees 04.5 minutes longitude. Three 'safety tests' were also conducted within approximately 1,500 meters (5,000 feet) of the SMOKY ground zero in 1958. Safety tests are designed to test the response of a nuclear device to an unplanned external force (e.g., nearby detonation of conventional explosives). These three safety tests (CERES, OBERON, and TITANIA) resulted in dispersal of plutonium over a wide area (Bechtel Nevada, 2002). Ten 3 x 4.6 meter test plots were constructed within the SMOKY CA to conduct rainfall-runoff simulations. Six of the ten test plots were treated with the emulsion at the manufacturer recommended loading of 1.08 gallons per square meter, and four plots were held untreated as experimental controls. Separate areas were also treated to assess impacts to native vegetation and surface infiltration rate. Field tests were conducted at approximately 6, 13, and 20.5 months post emulsion treatment. Field tests consisted of rainfall-runoff simulations and double ring infiltrometer measurements. Plant vigor assessments were conducted during peak production time, approximately seven months post treatment. Rainfall was simulated at the approximate 5 minute intensity of a 50-year storm (5.1 inches per hour) for durations of four to five minutes. All runoff generated from each test plot was collected noting the time for each liter of volume. Five gallon carboys containing the runoff water and sediment were shipped to Clemson Environmental Technologies Laboratory for analysis. The samples were separated into liquid and solid fractions. Liquid and solid fractions were weighed and analyzed for Americium-241 (Am-241) by gamma spectrometry. Quality control measures used at the laboratory indicate the analytical data are accurate and reproducible. A weather station was deployed to the field site to take basic meteorological measurements including air temperature, incoming solar radiation, wind speed, wind direction, barometric pressure, relative humidity, precipitation, and volumetric soil moisture content. Meteorological monitoring data indicate the climate over the test period was hot and dry with 41 days having measurable precipitation. The total precipitation for the study period was 12.5 centimeters, 37% of the long-term average. For the 20.5 month test period, 64 freeze-thaw cycles occurred. Vegetation assessments indicate the emulsion treatment did not negatively impact existing vegetation. The three rounds of double ring infiltration tests on treated surfaces indicate the infiltration rate was relatively constant over time and not significantly different from measurements taken on untreated surfaces. Significant differences were observed in the amount of runoff and sediment collected from treated and untreated plots for the first two but not the third round of rainfall-runoff simulations, indicating significant emulsion degradation after 20.5 months of exposure. Treated plots had higher total runoff volumes and sediment loads as compared to untreated plots for the first two rounds of simulations. These

  17. Extension of the Entropy Viscosity Method to the Multi-D Euler Equations and the Seven-Equation Two-Phase Model 

    E-Print Network [OSTI]

    Delchini, Marc

    2014-10-13

    is used to derive the viscous regularization terms for Euler equations with variable area for nozzle flow problems and was proved valid for any equation of state with a concave entropy. The new definition of the entropy viscosity method is tested...

  18. Cement and Concrete Research, Vol. 42 (2), 404-409, 2012. Influence of Particle Size Distributions on Yield Stress and Viscosity of

    E-Print Network [OSTI]

    Bentz, Dale P.

    on Yield Stress and Viscosity of Cement-Fly Ash Pastes Dale P. Bentz Chiara F. Ferraris Michael A. Galler of three variables (cement particle size distribution (PSD), fly ash PSD, and ratio of fly ash to cement of either total (cement + fly ash) particle surface area or total particle density. Keywords: Cement; fly

  19. Vacuum behaviors around rarefaction waves to 1D compressible Navier-Stokes equations with density-dependent viscosity

    E-Print Network [OSTI]

    Quansen Jiu; Yi Wang; Zhouping Xin

    2011-09-05

    In this paper, we study the large time asymptotic behavior toward rarefaction waves for solutions to the 1-dimensional compressible Navier-Stokes equations with density-dependent viscosities for general initial data whose far fields are connected by a rarefaction wave to the corresponding Euler equations with one end state being vacuum. First, a global-in-time weak solution around the rarefaction wave is constructed by approximating the system and regularizing the initial data with general perturbations, and some a priori uniform-in-time estimates for the energy and entropy are obtained. Then it is shown that the density of any weak solution satisfying the natural energy and entropy estimates will converge to the rarefaction wave connected to vacuum with arbitrary strength in super-norm time-asymptotically. Our results imply, in particular, that the initial vacuum at far fields will remain for all the time which are in contrast to the case of non-vacuum rarefaction waves studied in \\cite{JWX} where all the possible vacuum states will vanish in finite time. Finally, it is proved that the weak solution becomes regular away from the vacuum region of the rarefaction wave.

  20. Study of fractionation of refrigerant blends in contact with lubricants and measurement of the solubility, density, and viscosity

    SciTech Connect (OSTI)

    Cavestri, R.C.; Falconi, E.A.

    1999-07-01

    The fractionation of two refrigerant blends was studied using the gas equilibrium method. The amount of fractionation was measured by maintaining a constant composition of the refrigerant gas vapor over the lubricant, which was equal in composition to the liquid refrigerant gas blend introduced into the viscometer. Specifically, the concentration of the dissolved refrigerant gas in the lubricant ranges from 0.6% to 78% by weight in the specified temperature range of {minus}25 C to 125 C and within the highest test pressure of 500 psia (3.45 MPa). The polyolester chosen for this study was a 32 ISO VG complex branched acid pentaerythritol product. Smoothed graphical data presented were obtained from individual isothermal measurements. These individual isothermal measurement temperatures detail the composition of the equilibrium gas fractionation of R-32 and R-134a in the lubricant, mixed vapor pressure, concentration of the total mixed blend as percent by weight in the lubricant and viscosity in centipoise (cP) and centistokes (cSt). The raw data are presented in a smoothed graphical form based on a fixed vapor composition.

  1. In Situ Evaluation of Density, Viscosity and Thickness of Adsorbed Soft Layers by Combined Surface Acoustic Wave and Surface Plasmon Resonance

    E-Print Network [OSTI]

    L. Francis; J. -M. Friedt; C. Zhou; P. Bertrand

    2006-04-28

    We show the theoretical and experimental combination of acoustic and optical methods for the in situ quantitative evaluation of the density, the viscosity and the thickness of soft layers adsorbed on chemically tailored metal surfaces. For the highest sensitivity and an operation in liquids, a Love mode surface acoustic wave (SAW) sensor with a hydrophobized gold coated sensing area is the acoustic method, while surface plasmon resonance (SPR) on the same gold surface as the optical method is monitored simultaneously in a single set-up for the real-time and label-free measurement of the parameters of adsorbed soft layers, which means for layers with a predominant viscous behavior. A general mathematical modeling in equivalent viscoelastic transmission lines is presented to determine the correlation between experimental SAW signal shifts and the waveguide structure including the presence of the adsorbed layer and the supporting liquid from which it segregates. A methodology is presented to identify from SAW and SPR simulations the parameters representatives of the soft layer. During the absorption of a soft layer, thickness or viscosity changes are observed in the experimental ratio of the SAW signal attenuation to the SAW signal phase and are correlated with the theoretical model. As application example, the simulation method is applied to study the thermal behavior of physisorbed PNIPAAm, a polymer whose conformation is sensitive to temperature, under a cycling variation of temperature between 20 and 40 oC. Under the assumption of the bulk density and the bulk refractive index of PNIPAAm, thickness and viscosity of the film are obtained from simulations; the viscosity is correlated to the solvent content of the physisorbed layer.

  2. External Photoevaporation of the Solar Nebula II: Effects on Disk Structure and Evolution with Non-Uniform Turbulent Viscosity due to the Magnetorotational Instability

    E-Print Network [OSTI]

    Kalyaan, Anusha; Monga, Nikhil

    2015-01-01

    The structure and evolution of protoplanetary disks, especially the radial flows of gas through them, are sensitive to a number of factors. One that has been considered only occasionally in the literature is external photoevaporation by far-ultraviolet (FUV) radiation from nearby, massive stars, despite the fact that nearly half of all disks will experience photoevaporation. Another effect apparently not considered in the literature is a spatially and temporally varying value of $\\alpha$ in the disk [where the turbulent viscosity $\

  3. Segregation of a Keplerian disc and sub-Keplerian halo from a Transonic flow around a Black Hole by Viscosity and Cooling processes

    E-Print Network [OSTI]

    Giri, Kinsuk; Chakrabarti, Sandip K

    2015-01-01

    A black hole accretion is necessarily transonic. In presence of sufficiently high viscosity and cooling effects, a low-angular momentum transonic flow can become a standard Keplerian disc except close to the where hole where it must pass through the inner sonic point. However, if the viscosity is not high everywhere and cooling is not efficient everywhere, the flow cannot completely become a Keplerian disc. In this paper, we show results of rigorous numerical simulations of a transonic flow having vertically varying viscosity parameter (being highest on the equatorial plane) and optical depth dependent cooling processes to show that the flow indeed segregates into two distinct components as it approaches a black hole. The component on the equatorial plane has properties of a standard Keplerian disc, though the flow is not truncated at the inner- most stable circular orbit. This component extends till the horizon as a sub-Keplerian flow. This standard disc is found to be surrounded by a hot, low angular moment...

  4. Fe{sub 3}O{sub 4}/Zeolite nanocomposites synthesized by microwave assisted coprecipitation and its performance in reducing viscosity of heavy oil

    SciTech Connect (OSTI)

    Iskandar, Ferry; Fitriani, Pipit; Merissa, Shanty; Khairurrijal,; Abdullah, Mikrajuddin; Mukti, Rino R.

    2014-02-24

    Fe{sub 3}O{sub 4}/Zeolite nanocomposites have been synthesized via microwave assisted coprecipitation method and show to be efficient in reducing viscosity of heavy oil compared to other Fe{sub 3}O{sub 4}/Zeolite nanocomposites prepared by conventional method. The following precursors such as FeCl{sub 3}?6H{sub 2}O, FeSO{sub 4}?7H{sub 2}O, NH{sub 4}OH, and natural zeolite of heulandite type were used in the sample preparation. In this study, the effect of Fe{sub 3}O{sub 4} composition in the composite and microwave time heating were investigated. Fe{sub 3}O{sub 4}/Zeolite nanocomposites were then characterized to study the influence on crystal structures, morphology and physicochemical properties. The characterization techniques include X-ray diffraction (XRD), scanning electron microscopy (SEM) and nitrogen physisorption. The results show that by increasing the microwave heating time, the degree of nanocomposite intergrowth can be enhanced. The nanocomposite was tested in catalytic aquathermolysis of heavy oil at 200°C for 6 h and the Fe{sub 3}O{sub 4}/zeolite of 1 to 4 ratios performed the highest viscosity reduction of heavy oil reaching 92%.

  5. Viscosity and density of aqueous solutions of LiBr, LiCl, ZnBr[sub 2], CaCl[sub 2], and LiNO[sub 3]; 1: Single salt solutions

    SciTech Connect (OSTI)

    Wimby, J.M.; Berntsson, T.S. . Dept. of Heat and Power Technology)

    1994-01-01

    New experimental data for the viscosity and density of the binary systems lithium chloride + water, lithium bromide + water, calcium chloride + water, lithium nitrate + water, and zinc bromide + water are presented. Densities are presented in tabular form and as 10-parameter correlations, while kinematic and dynamic viscosities are presented in tabular form. Data are presented in the concentration range from intermediate dilution to close to room temperature crystallization concentration. The temperature ranges are 20--70 C for density and 25--90 C for viscosity. When available, literature data are compared with the new data, and some disagreement is found. New thermogravimetric curves are presented for the dehydration of CaCl[sub 2], ZnBr[sub 2], and LiBr in order to enable evaluation of drying as a composition determination technique.

  6. Acoustic scaling of anisotropic flow in shape-engineered events: implications for extraction of the specific shear viscosity of the quark gluon plasma

    E-Print Network [OSTI]

    Roy A. Lacey; D. Reynolds; A. Taranenko; N. N. Ajitanand; J. M. Alexander; Fu-Hu Liu; Yi Gu; A. Mwai

    2013-11-08

    It is shown that the acoustic scaling patterns of anisotropic flow for different event shapes at a fixed collision centrality (shape-engineered events), provide robust constraints for the event-by-event fluctuations in the initial-state density distribution from ultrarelativistic heavy ion collisions. The empirical scaling parameters also provide a dual-path method for extracting the specific shear viscosity $(\\eta/s)_\\mathrm{QGP}$ of the quark-gluon plasma (QGP) produced in these collisions. A calibration of these scaling parameters via detailed viscous hydrodynamical model calculations, gives $(\\eta/s)_\\mathrm{QGP}$ estimates for the plasma produced in collisions of Au+Au ($\\sqrt{s_{NN}}= 0.2$ TeV) and Pb+Pb ($\\sqrt{s_{NN}}= 2.76$ TeV). The estimates are insensitive to the initial-state geometry models considered.

  7. DEPARTMENT OF THE NAVY Energy Goals

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustmentsShirleyEnergyTher i n c i p aDepartmentEnergyEveryCustomerD= DOE/RG-0067u.s. DEPARTMENTNAVY

  8. Navy Geothermal Program | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIXsourceII Jump to: navigation,National Marine FisheriesPolicy | Open EnergyGeothermal

  9. Navy I Geothermal Facility | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIXsourceII Jump to: navigation,National Marine FisheriesPolicy | Open EnergyGeothermalI

  10. Navy II Geothermal Facility | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIXsourceII Jump to: navigation,National Marine FisheriesPolicy | Open EnergyGeothermalIII

  11. nuclear navy | National Nuclear Security Administration

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power AdministrationRobust,Field-effectWorkingLosThe 26th AnnualHistoryMIII:National1-2130nsc |

  12. philadelphia navy yard | netl.doe.gov

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power AdministrationRobust,Field-effectWorkingLosThe 26thI D- 6 0 4 2 r m m m m port m fm f m Tomega(coeEnergy

  13. Nuclear Navy | Y-12 National Security Complex

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home Room NewsInformationJesseworkSURVEY UNIVERSE The 2014 survey includes

  14. Event-by-event fluctuations in perturbative QCD + saturation + hydro model: pinning down QCD matter shear viscosity in ultrarelativistic heavy-ion collisions

    E-Print Network [OSTI]

    H. Niemi; K. J. Eskola; R. Paatelainen

    2015-05-11

    We introduce an event-by-event perturbative-QCD + saturation + hydro ("EKRT") framework for ultrarelativistic heavy-ion collisions, where we compute the produced fluctuating QCD-matter energy densities from next-to-leading order perturbative QCD using a saturation conjecture to control soft particle production, and describe the space-time evolution of the QCD matter with dissipative fluid dynamics, event by event. We perform a simultaneous comparison of the centrality dependence of hadronic multiplicities, transverse momentum spectra, and flow coefficients of the azimuth-angle asymmetries, against the LHC and RHIC measurements. We compare also the computed event-by-event probability distributions of relative fluctuations of elliptic flow, and event-plane angle correlations, with the experimental data from Pb+Pb collisions at the LHC. We show how such a systematic multi-energy and multi-observable analysis tests the initial state calculation and the applicability region of hydrodynamics, and in particular how it constrains the temperature dependence of the shear viscosity-to-entropy ratio of QCD matter in its different phases in a remarkably consistent manner.

  15. Pinning down QCD-matter shear viscosity in ultrarelativistic heavy-ion collisions via EbyE fluctuations using pQCD + saturation + hydrodynamics

    E-Print Network [OSTI]

    K. J. Eskola; H. Niemi; R. Paatelainen

    2015-09-09

    We introduce an event-by-event pQCD + saturation + hydro ("EKRT") framework for high-energy heavy-ion collisions, where we compute the produced fluctuating QCD-matter energy densities from next-to-leading order (NLO) perturbative QCD (pQCD) using saturation to control soft particle production, and describe the space-time evolution of the QCD matter with viscous hydrodynamics, event by event (EbyE). We compare the computed centrality dependence of hadronic multiplicities, p_T spectra and flow coefficients v_n against LHC and RHIC data. We compare also the computed EbyE probability distributions of relative fluctuations of v_n, as well as correlations of 2 and 3 event-plane angles, with LHC data. Our systematic multi-energy and -observable analysis not only tests the initial state calculation and applicability of hydrodynamics, but also makes it possible to constrain the temperature dependence of the shear viscosity-to-entropy ratio, eta/s(T), of QCD matter in its different phases. Remarkably, we can describe all these different flow observables and correlations consistently with eta/s(T) that is independent of the collision energy.

  16. SPE-139032-PP Field Development Strategies for Bakken Shale Formation

    E-Print Network [OSTI]

    Mohaghegh, Shahab

    rial doe s n ot n ece ssa ri ly refle ct a n y po sitio n of th e So ciet y o f Pet role um E ngine ers was generated, history matched and economical analysis for some proposed new wells is performed. Introduction

  17. spe375-01 page 1 of 4 INTRODUCTION

    E-Print Network [OSTI]

    Rose, William I.

    .Accord- ing to the World Bank, the country has a per capita income of just over $2000, higher than Guatemala, through their work, aim to help develop strategies to mitigate the ter- rible suffering and monetary cost

  18. NFFLOW: A reservoir simulator incorporating explicit fractures (SPE 153890)

    SciTech Connect (OSTI)

    Boyle, E.J.; Sams, W.N.

    2012-01-01

    NFFLOW is a research code that quickly and inexpensively simulates flow in moderately fractured reservoirs. It explicitly recognizes fractures separately from rock matrix. In NFFLOW fracture flow is proportional to the pressure gradient along the fracture, and flow in the rock matrix is determined by Darcy’s Law. The two flow mechanisms are coupled through the pressure gradient between a fracture and its adjacent rock matrix. Presented is a promising change to NFFLOW that allows for flow across a rock matrix block.

  19. Material Safety Data Sheet MSDS ID NO.: 0137SPE012

    Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE: Alternative Fuels Data Center Home PageBlenderBusiness Case forbutton highlighted

  20. Elliptic Flow at Large Viscosity

    E-Print Network [OSTI]

    Volker Koch

    2009-09-18

    In this contribution we present an alternative scenario for the large elliptic flow observed in relativistic heavy ion collisions. Motivated by recent results from Lattice QCD on flavor off-diagonal susceptibilities we argue that the matter right above $T_{c}$ can be described by single-particle dynamics in a repulsive single-particle potential, which in turn gives rise to elliptic flow. These ideas can be tested experimentally by measuring elliptic flow of heavy quarks, preferably via the measurement of $J/\\Psi$ elliptic flow.

  1. Fueling the Navy's Great Green Fleet with Advanced Biofuels

    Office of Energy Efficiency and Renewable Energy (EERE)

    From transporting the oil necessary to fuel jets and vehicles to supplying battery packs to infantry, energy plays a central role in almost everything the U.S. military does. Because of this reliance, it’s imperative that the military cultivate energy sources that are not subject to the whims of outside nations. While renewables like solar are playing a large role in this effort, advanced biofuels produced domestically are rapidly becoming another choice for transportation fuel.

  2. Flight Test of Weapons System Body by Navy Successful | National...

    National Nuclear Security Administration (NNSA)

    nuclear explosive testing." The FCET-51 reentry body was designed to measure vibration and shock environments in flight. The next-generation telemetry capability was...

  3. Joint NOAA, Navy, NASA Hurricane Test Bed Terms of Reference

    E-Print Network [OSTI]

    activity funded by the USWRP and is established to accelerate the technology infusion focused on hurricane

  4. WAVE ENERGY RESOURCE CHARACTERIZATION US NAVY WAVE ENERGY TEST SITE

    E-Print Network [OSTI]

    the islands of Oahu, Maui, Kauai, and Hawai`i from 1979 to 2013. The wind forcing includes the Climate IN HAWAI`I Prepared by: Ning Li and Kwok Fai Cheung Department of Ocean and Resources Engineering University of Hawai`i Prepared for: luisvega@hawaii.edu Hawai`i National Marine Renewable Energy Center Hawai`i

  5. Energy Department Joins Navy and Agriculture Departments to Invest...

    Energy Savers [EERE]

    To build and operate an 82 million gallon per year refinery on the Gulf Coast to hydro-treat and upgrade waste fats, oils, and greases to create military-grade jet fuel and...

  6. Navy's Geothermal Program Office: Overview of Recovery Act (ARRA...

    Open Energy Info (EERE)

    Centro base in Imperial County, CA, and at the Hawthorne Army Depot, NV. GPO is currently drilling on the west flank of the Chocolate Mountains, Imperial County, CA and have plans...

  7. US Department of the Navy Driving Alternative Fuels Adoption

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

    5 years (anything beyond 1 year is challenging) - Offtakes before facility is producing fuel - Another major capital infusion FA-18E , Pacific Ocean USS Nimitz (CVN-68) THANK YOU...

  8. Memorandum of Understanding Between The Department Of The Navy...

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

    Obama directed the Parties to work with private industry to create advanced drop-in biofuels that will power both the Department of Defense and private sector transportation...

  9. China's Navy Embraces Technology: Western Science, Chinese Culture?

    E-Print Network [OSTI]

    COLE, Bernard D.

    2013-01-01

    new technology will work, and new tech- nology rarely isremarkable tech- nological advances. The new cyber and space

  10. Cogeneration system selection using the Navy's CELCAP code

    SciTech Connect (OSTI)

    Lee, T.Y.R.

    1988-08-01

    The performance of a cogeneration system is easily affected by several factors; number and type of engines used in the system, the manner in which the system is operated, and the electric and thermal load profile that the system has to supply. Other factors which the energy analyst must also consider are the electric utility rate structure, the price of fuel used in the cogeneration system, and the working habits of the people at the site. The evaluation of cogeneration energy systems for the purpose of selecting a configuration with the best performance requires a great amount of effort. A computer program to analyze a cogeneration system would greatly reduce the effort needed to evaluate cogeneration systems. Realizing the need for such a tool, the Naval Civil Engineering Laboratory developed such a cogeneration analysis computer program, Civil Engineering Laboratory Cogeneration Analysis Program (CELCAP), for the purpose of evaluating the performance of cogeneration systems on a life-cycle operating cost basis.

  11. A Day in the Navy July 18, 2012

    E-Print Network [OSTI]

    during the Great Green Fleet demonstration portion of Rim of the Pacific (RIMPAC) 2012 off the coast of Pacific Partnership 2012. · Algerian and American Sailors aboard USS Jason Dunham (DDG 109) conduct live Warning Squadron 77 flies two missions in the Eastern Pacific for a total of nine hours in support

  12. United States Department Of The Navy Geothermal Exploration Leading...

    Open Energy Info (EERE)

    through open fractures in the mountain ranges to depths in excess of 7,000 feet. The fluids are then heated deep in the subsurface by the natural geothermal gradient of the...

  13. Energy Department Joins Agriculture and Navy in the Fight for...

    Office of Environmental Management (EM)

    in the Gulf Coast, Nevada, and Oregon over the coming years. This joint U.S. government investment in clean energy innovation such as these drop-in biofuel facilities will help...

  14. USDA, Departments of Energy and Navy Seek Input from Industry...

    Energy Savers [EERE]

    the Secretaries by the Office of the Secretary of Defense Acquisition Technology and Logistics in coordination with the Defense Production Act Title III executive agent...

  15. China's Navy Embraces Technology: Western Science, Chinese Culture?

    E-Print Network [OSTI]

    COLE, Bernard D.

    2013-01-01

    environment. CHINA’S SHIPBUILDING INDUSTRY AND THE PLAN Thisone shipbuilder. China’s shipbuilding industry is improvingAnother weakness in the shipbuilding indus- try is the

  16. Comments on: Navy/Marine Engineering Command Visits Sandia

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

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

  17. DOE - Office of Legacy Management -- Philadelphia Navy Yard - PA 08

    Office of Legacy Management (LM)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of NaturalDukeWakefield Municipal Gas &SCE-SessionsSouth Dakota Edgemont,Manufacturing -NevadaCentralPetrolite Corp

  18. Navy Enhanced Use Lease (EUL) website | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QAsource History ViewMayo, Maryland:NPI Ventures Ltd Jump to:Information WildlifeNaturalNavarroNavitas

  19. United States Department Of The Navy Geothermal Exploration Leading To

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION JEnvironmental Jump to:EA EISTJThin Film SolarTown(LECBP)BioGenUnidymInformation

  20. Powering the Nuclear Navy | National Nuclear Security Administration

    National Nuclear Security Administration (NNSA)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of NaturalDukeWakefield Municipal Gas &SCE-SessionsSouthReport for the t-) S/,,5 'a C O09Our Mission / Powering the Nuclear

  1. Manhattan Project: The Navy and Thermal Diffusion, 1944

    Office of Scientific and Technical Information (OSTI)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of NaturalDukeWakefieldSulfate Reducing(Journalspectroscopy ofArticle)SciTechNorris Bradbury,Cubes1939-1945 Oak

  2. Navy's Geothermal Program Office: Overview of Recovery Act (ARRA) Funded

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIXsourceII Jump to: navigation,National Marine FisheriesPolicy | Open

  3. DOE and Navy Collaborate on Geothermal Drilling Technology | Department of

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:FinancingPetroleum Based| Department8, 2015 GATEWAY Takes 9.NewExtremeand NREL Technical

  4. The Department of the Navy's Research Development and Acquisition

    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 RankADVANCEDInstallers/ContractorsPhotovoltaicsState of Pennsylvania U.S. Department of Energy Office

  5. Energy Department Joins Navy and Agriculture Departments to Invest in

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration would like submitKansasCommunities Energy Efficiency Competition |NaturalPacificProjectDrop-In

  6. Powering the Nuclear Navy | National Nuclear Security Administration

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home Room NewsInformationJesseworkSURVEYI/OPerformancePi Day PiSafetyContactAbout Us / Our Programs /

  7. Duncan - Rickover and the Nuclear Navy | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE: Alternative Fuels DataEnergy Webinar:IAbout Us|ofElizabeth

  8. Sandia Energy - Navy/Marine Engineering Command Visits Sandia

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home RoomPreservation of Fe(II)Geothermal Energy &Water

  9. Intelligent Upscaling of Static and Dynamic Reservoir Properties V.Gholami, SPE and S.D.Mohaghegh, SPE, West Virginia University

    E-Print Network [OSTI]

    Mohaghegh, Shahab

    that result in definition of different rock types. In most caes rock types that are identified in a reservoir

  10. Top-Down Intelligent Reservoir Modeling of New Albany Shale A. Kalantari-Dahaghi, SPE, S.D. Mohaghegh, SPE, West Virginia University

    E-Print Network [OSTI]

    Mohaghegh, Shahab

    on individual wells in a multi-well New Albany Shale gas reservoir in Western Kentucky that has a reasonable Albany Shale Gas -The New Albany Shale is predominantly an organic-rich brownish-black and grayish-black shale that is present in the subsurface throughout the Illinois Basin. The total gas content of the New

  11. Viscosity of interfacial water regulates ice nucleation

    SciTech Connect (OSTI)

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

    2014-03-10

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

  12. Factors affecting viscosity changes in corn 

    E-Print Network [OSTI]

    McGill, Kendra Louise

    1995-01-01

    Corn meals with known differences were tested using the Rapid Visco Analyzer. Various tests included the effect of solid concentration, effect of heating rate, effect of particle size, effect of Sodium Carboxymethylcellulose ...

  13. Getting the Best Out of Fluid Samples John M. Williams, SPE, Science Support Services

    E-Print Network [OSTI]

    Williams, John M.

    are (1) determination of opening pressure; (2) compositional analysis, including air content; and (3" properties of duplicates. Production test data are most critical for surface samples because portions of oil

  14. SPE-SAS-321 Estimating Layers Deliverability in Multi-Layered Gas Reservoirs Using

    E-Print Network [OSTI]

    Hossain, M. Enamul

    Intelligence Alarfaj, M. K., Saudi Aramco; Abdulraheem, A., KFUPM; Al-Majed, A.; KFUPM; Hossain, E., KFUPM

  15. EAGE Conference & Exhibition incorporating SPE EUROPEC 2011 Vienna, Austria, 23-26 May 2011

    E-Print Network [OSTI]

    Brückl, Ewald

    in a three dimensional model, including seismic velocity and attenuation. This model is used to design it is necessary to design a target oriented seismic acquisition configuration. To set up such a configuration an improved seismic velocity model is required. One objective of this study is to design a comprehensive model

  16. SPE -124703 Process for tracking the evolving perception of risk during CO2 storage

    E-Print Network [OSTI]

    the pressure on all nations to reduce emissions of greenhouse gases. Carbon capture and storage (CCS, primarily power plants, is captured and transported to a storage site where it is injective into the Earth. Carbon dioxide injected into deep geological formations will initially be more buoyant than the existing

  17. PRESENTED AT THE 2009 DSP & SPE WORKSHOP MULTIRESOLUTION IN MULTISCALE: A NEW ROLE FOR WAVELETS

    E-Print Network [OSTI]

    Mirchandani, Gagan

    (measured in nanometers), microscale (microme- ters), mesoscale (hundreds of micrometers) and continuum 1

  18. SPE 173406-MS Application of Artificial Intelligence and Data Mining Techniques for Fast

    E-Print Network [OSTI]

    Mohaghegh, Shahab

    Fossil fuel use is considered the main source of CO2 emission. Even with considering new policies of CO2 gas emissions.1 The atmospheric concentration of CO2 recently reached a considerable level of 400 ppm reservoir simulation model for the geologic CO2 sequestration study at SACROC Unit, lead to a high

  19. Society of Plastics Engineers [SPE] Annual Technical Conference Proceedings Cincinnati, OH May 2007

    E-Print Network [OSTI]

    ], transpiration cooling [3], radiation cooling, [3], and intumescence [2, 4]. Intumescence is defined be dissipated away from a substrate by several methods, including heat sinks [3], active cooling [3 when exposed to heat. In radiation cooling, much of the heat flux is reflected away by a high

  20. NEAR FIELD MODELING OF SPE1 EXPERIMENT AND PREDICTION OF THE...

    Office of Scientific and Technical Information (OSTI)

    98 NUCLEAR DISARMAMENT, SAFEGUARDS, AND PHYSICAL PROTECTION; ATTENUATION; BOREHOLES; DESIGN; FORECASTING; FRACTURES; G CODES; GRANITES; HYDRODYNAMICS; HYPOTHESIS; LAGRANGIAN...

  1. SPE-153271-PP Semiautomatic, Semantic Assistance to Manual Curation of Data in Smart

    E-Print Network [OSTI]

    Hwang, Kai

    are continuously generated in smart oilfields from swarms of sensors. On one hand, increasing amounts of such data data mainly lies in the fact that data is stored in large repositories carrying no metadata to describe with missing metadata, with terms from a domain ontology, which constantly evolves supervised by domain experts

  2. EAGE Conference & Exhibition incorporating SPE EUROPEC 2011 Vienna, Austria, 23-26 May 2011

    E-Print Network [OSTI]

    Brückl, Ewald

    . Freudenthaler (Pöyry Infra GmbH) SUMMARY The refurbishment of the Kaunertal hydroelectric power station, planned the refurbishment and extension of the hydroelectric power plant Kaunertal. Therefore several possible positional for optimizing the trail for the new water pressure tunnel in this area, providing information like the compact

  3. Figure 10--Proportion of basal area accounted for by each tree spe-

    E-Print Network [OSTI]

    include lodgepole pine (Pinus contorta), black oak, willow (Salix spp.), western white pine (P. monticola Forest QUKE Salix CADE PICO Figure 11--Spatial distribution of basal area of major tree species within

  4. spe451-00 1st pgs page v Introduction: Managing Rivers with Broad Historical Changes

    E-Print Network [OSTI]

    James, L. Allan

    selected authors and keynote speakers, the themes and structure of the session were listed by the GSA prior impoundments such as farm ponds and mill dams on intermediate-order drainages has come to be recog- nized

  5. SPE-170680-MS Predicting Failures from Oilfield Sensor Data using Time Series Shapelets

    E-Print Network [OSTI]

    Hwang, Kai

    with several Electrical Submersible Pumps (ESPs), each instrumented with sensors that continually measure of Petroleum Engineers, its officers, or members. Electronic reproduction, distribution, or storage of any part electrical properties of the pump (the streams of sensor data), which are then relayed to a central location

  6. SPE 153843-PP Uncertainty Analysis of a CO2 Sequestration Project Using Surrogate

    E-Print Network [OSTI]

    Mohaghegh, Shahab

    , USA Department of Energy Copyright 2012, Society of Petroleum Engineers This paper was prepared by the Society of Petroleum Engineers and are subject to correction by the author(s). The material does not necessarily reflect any position of the Society of Petroleum Engineers, its officers, or members. Electronic

  7. NEAR FIELD MODELING OF SPE1 EXPERIMENT AND PREDICTION OF THE SECOND SOURCE

    Office of Scientific and Technical Information (OSTI)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of NaturalDukeWakefieldSulfate Reducing(JournalspectroscopyReport)Fermentativea(Patent) |center (JournalNDMAS System

  8. NEAR FIELD MODELING OF SPE1 EXPERIMENT AND PREDICTION OF THE SECOND SOURCE

    Office of Scientific and Technical Information (OSTI)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of NaturalDukeWakefieldSulfate Reducing(JournalspectroscopyReport)Fermentativea(Patent) |center (JournalNDMAS SystemPHYSICS

  9. Proceedings of the TOUGH Symposium 2012

    E-Print Network [OSTI]

    Finsterle, S.

    2014-01-01

    Shale Gas Wells, Paper SPE 153391, SPE Latin American and Caribbean Petroleum Engineering Conference, Mexico

  10. Lord Cochrane and the Chilean Navy, 1818-18 23 , with an inventory of the Dundonald papers relating to his service with the Chilean Navy 

    E-Print Network [OSTI]

    Cubitt, David John

    1974-01-01

    In the late 18th century and the first two decades of the 19th, Spanish seapower in the Pacific was in a state of decline, though it remained strong enough to contribute to the overthrow of the first attempt of the ...

  11. SOFTWARE--PRACTICE AND EXPERIENCE Softw. Pract. Exper. 2002; 32:605619 (DOI: 10.1002/spe.451)

    E-Print Network [OSTI]

    Schneider, Fred B.

    . The dramatic collapse of our namesake--the Tacoma Narrows bridge--played an important role in the evolution) A TACOMA retrospective Dag Johansen1,,, K°are J. Lauvset1, Robbert van Renesse2, Fred B. Schneider2, Nils P of Computer Science, Cornell University, Ithaca, New York 14853, U.S.A. SUMMARY For seven years, the TACOMA

  12. Copyright 2002, Society of Petroleum Engineers Inc. This paper was prepared for presentation at the SPE Annual Technical Conference and

    E-Print Network [OSTI]

    Mohaghegh, Shahab

    Copyright 2002, Society of Petroleum Engineers Inc. This paper was prepared for presentation reviewed by the Society of Petroleum Engineers and are subject to correction by the author(s). The material, as presented, does not necessarily reflect any position of the Society of Petroleum Engineers, its officers

  13. Copyright 2006, Society of Petroleum Engineers This paper was prepared for presentation at the 2006 SPE Annual Technical Conference and

    E-Print Network [OSTI]

    Mohaghegh, Shahab

    Copyright 2006, Society of Petroleum Engineers This paper was prepared for presentation at the 2006 not been reviewed by the Society of Petroleum Engineers and are subject to correction by the author(s). The material, as presented, does not necessarily reflect any position of the Society of Petroleum Engineers

  14. Copyright 2006, Society of Petroleum Engineers This paper was prepared for presentation at the 2006 SPE Intelligent Energy Conference and

    E-Print Network [OSTI]

    Hwang, Kai

    Copyright 2006, Society of Petroleum Engineers This paper was prepared for presentation at the 2006 reviewed by the Society of Petroleum Engineers and are subject to correction by the author(s). The material, as presented, does not necessarily reflect any position of the Society of Petroleum Engineers, its officers

  15. Copyright 1999, Society of Petroleum Engineers Inc. This paper was prepared for presentation at the 1999 SPE Reservoir Simulation Symposium

    E-Print Network [OSTI]

    Peszynska, Malgorzata

    Copyright 1999, Society of Petroleum Engineers Inc. This paper was prepared for presentation by the Society of Petroleum Engineers and are subject to correction by the author(s). The material, as presented, does not necessarily reflect any position of the Society of Petroleum Engineers, its officers

  16. Copyright 1996, Society of Petroleum Engineers, Inc. This paper was prepared for presentation at the 1997 SPE Production

    E-Print Network [OSTI]

    Patzek, Tadeusz W.

    Copyright 1996, Society of Petroleum Engineers, Inc. This paper was prepared for presentation by the Society of Petroleum Engineers and are subject to correction by the author(s). The material, as presented, does not necessarily reflect any position of the Society of Petroleum Engineers, its officers

  17. Copyright 2005, Society of Petroleum Engineers This paper was prepared for presentation at the 2005 SPE Annual Technical Conference and

    E-Print Network [OSTI]

    Mohaghegh, Shahab

    Copyright 2005, Society of Petroleum Engineers This paper was prepared for presentation at the 2005 by the Society of Petroleum Engineers and are subject to correction by the author(s). The material, as presented, does not necessarily reflect any position of the Society of Petroleum Engineers, its officers

  18. Copyright 1997, Society of Petroleum Engineers, Inc. This paper was prepared for presentation at the 1997 SPE Western Regional

    E-Print Network [OSTI]

    Patzek, Tadeusz W.

    Copyright 1997, Society of Petroleum Engineers, Inc. This paper was prepared for presentation by the Society of Petroleum Engineers and are subject to correction by the author(s). The material, as presented, does not necessarily reflect any position of the Society of Petroleum Engineers, its officers

  19. Copyright 2006, Society of Petroleum Engineers This paper was prepared for presentation at the 2006 SPE Gas Technology Symposium held

    E-Print Network [OSTI]

    Mohaghegh, Shahab

    Copyright 2006, Society of Petroleum Engineers This paper was prepared for presentation at the 2006 by the author(s). Contents of the paper, as presented, have not been reviewed by the Society of Petroleum reflect any position of the Society of Petroleum Engineers, its officers, or members. Papers presented

  20. Copyright 2005, Society of Petroleum Engineers This paper was prepared for presentation at the 2005 SPE Annual Technical Conference and

    E-Print Network [OSTI]

    Patzek, Tadeusz W.

    Copyright 2005, Society of Petroleum Engineers This paper was prepared for presentation at the 2005 reviewed by the Society of Petroleum Engineers and are subject to correction by the author(s). The material, as presented, does not necessarily reflect any position of the Society of Petroleum Engineers, its officers

  1. Copyright 2006, Society of Petroleum Engineers This paper was prepared for presentation at the 2006 SPE Intelligent Energy Conference and

    E-Print Network [OSTI]

    Mohaghegh, Shahab

    for smart fields (a.k.a. i- fields) in the industry that is a natural growth of smart completions and smart

  2. Copyright 2007, Society of Petroleum Engineers This paper was prepared for presentation at the 2007 SPE Annual Technical Conference and

    E-Print Network [OSTI]

    Torres-Verdín, Carlos

    consists of adding water and surfactant to a multi-component OBM invading a formation saturated-bound, and movable water. The dynamic process of OBM invasion causes component concentrations to vary with space-dimensional spatial distributions of water and oil saturation that are transformed into spatial distributions

  3. Copyright 2002, Society of Petroleum Engineers Inc. This paper was prepared for presentation at the SPE Annual Technical Conference and

    E-Print Network [OSTI]

    Torres-Verdín, Carlos

    . Malinverno and Torres-Verdín2 on the other hand, have described a procedure to estimate water invasion invert pressure and DC resistivity data acquired with in-situ permanent sensors in a hypothetical water injection experiment. Time-variable flow rates are enforced while injecting water into the surrounding rock

  4. Copyright 2005, Society of Petroleum Engineers This paper was prepared for presentation at the 2005 SPE Annual Technical Conference and

    E-Print Network [OSTI]

    produced water, many states are critically short of freshwater resources. This paper describes and validates a process to treat this brine to meet the standards for irrigation-quality water. Components collected experimental data for oil/water separation of controlled mixtures using packed columns

  5. Copyright 2004, Society of Petroleum Engineers Inc. This paper was prepared for presentation at the SPE Annual Technical Conference and

    E-Print Network [OSTI]

    Torres-Verdín, Carlos

    , homogeneous, water wet, and saturated with oil to the level of irreducible water saturation. Simulations of the process of mud-filtrate invasion yield 2D cross-sections of water saturation, salt concentration affected by both the relative proportion of lithology and the invasion of mud filtrate. Water saturation

  6. Copyright 2006, Society of Petroleum Engineers This paper was prepared for presentation at the 2006 SPE Annual Technical Conference and

    E-Print Network [OSTI]

    Torres-Verdín, Carlos

    -filtrate invasion into reservoirs containing mixtures of connate water and oil. Subsequently, we simulate formation overbalanced by mud circulation. In the case of water-base muds (WBMs), the invading mud is immiscible

  7. Comments on Economides and Ehlig-Economides,"Sequestering carbon dioxide in a closed underground volume," SPE 124430, October 2009

    SciTech Connect (OSTI)

    Oldenburg, Curt; Pruess, Karsten; Birkholzer, Jens; Doughty, Christine

    2009-10-22

    The paper examines the pressure increase resulting from injection of CO2 into a 1D radial system with closed boundaries. The finding is that unacceptably high pressures are obtained when only 1% or less of the pore volume is occupied by injected CO2. These results are used to make the general conclusion that large-scale CCS is not feasible.

  8. Comments on Economides and Ehlig-Economides, "Sequestering carbon dioxide in a closed underground volume," SPE 124430, October 2009

    E-Print Network [OSTI]

    Oldenburg, Curt

    2010-01-01

    of process other than direct injection. To summarize, theThey then assume a simple direct injection of CO 2 and findrise relative to direct CO 2 injection due to increased

  9. Copyright 2007, Society of Petroleum Engineers This paper was prepared for presentation at the 2007 SPE Annual Technical Conference and

    E-Print Network [OSTI]

    Torres-Verdín, Carlos

    savings in computer time and provides reliable and accurate estimates of permeability and anisotropy

  10. SOFTWARE--PRACTICE AND EXPERIENCE Softw. Pract. Exper. 2001; 31:717738 (DOI: 10.1002/spe.384)

    E-Print Network [OSTI]

    Krintz, Chandra

    Mill River Road, Hawthorne, NY 10532, U.S.A. SUMMARY The execution model for mobile, dynamically the application is running, introduces execution delay. In this paper we present two dynamic compilation according to this priority scheme so that performance-critical methods are invoked using optimized code

  11. Copyright 2004, Society of Petroleum Engineers Inc. This paper was prepared for presentation at the SPE Annual Technical Conference and

    E-Print Network [OSTI]

    Mohaghegh, Shahab

    of implementing a hydraulic fracture in oil and gas producing wells. Hydraulic fracture simulators require-situ stress profile of a well includes the stress at the horizon where the hydraulic fracture is being placed detrimental in the overall performance of wells that depend on hydraulic fracture design and implementation

  12. Copyright 2005, Society of Petroleum Engineers This paper was prepared for presentation at the 2005 SPE Annual Technical Conference and

    E-Print Network [OSTI]

    Mohaghegh, Shahab

    fields of Oklahoma. The outcome of these stimulation jobs have not been the same for all wells stimulation, and as such, the bulk of efforts were focused on determination of optimized hydraulic fracturing procedure. Detail stimulation data from more than 230 wells in the Golden Trend fields of Oklahoma operated

  13. Copyright 2004, Society of Petroleum Engineers Inc. This paper was prepared for presentation at the SPE Eastern Regional Conference and

    E-Print Network [OSTI]

    Mohaghegh, Shahab

    is the one developed and used by the Energy Information Administration (EIA). Recently a model was developed does not use parameters such as gas price as an input. If we know the future price of gas is then forecasted until year 2020. Introduction Natural gas has become one of the most important sources of energy

  14. Microchannel DNA Sequencing Matrices with a Thermally Controlled "Viscosity Switch"

    E-Print Network [OSTI]

    Barron, Annelise E.

    is to be completed by 2003, the target set by the Human Genome Project (HGP).1 Moreover, in addition to the HGP, over

  15. Enhanced engine efficiency through subsystem lubricant viscosity investigations

    E-Print Network [OSTI]

    Martins, Tomás V

    2014-01-01

    This study initiates a three-year project to investigate the potential benefits in fuel efficiency, engine emissions, lubricant longevity, and engine durability. Two experimental testing platforms were designed and implemented ...

  16. From thermally activated to viscosity controlled fracture of biopolymer hydrogels

    E-Print Network [OSTI]

    T. Baumberger; O. Ronsin

    2008-10-22

    We report on rate-dependent fracture energy measurements over three decades of steady crack velocities in alginate and gelatin hydrogels. We evidence that, irrespective of gel thermo-reversibility, thermally activated "unzipping" of the non-covalent cross-link zones results in slow crack propagation, prevaling against the toughening effect of viscous solvent drag during chain pull-out, which becomes efficient above a few mm.s$^{-1}$. We extend a previous model [Baumberger {\\it et al.} Nature Materials, {\\bf 5}, 552 (2006)] to account for both mechanisms, and estimate the microscopic unzipping rates.

  17. Viscosity driven instability in rotating relativistic stars Motoyuki Saijo*

    E-Print Network [OSTI]

    Gourgoulhon, Eric

    are secularly unstable to bar-mode formation when #12; * #12;sec ' 0:14. This instability can grow of the system. By contrast, a dynamical insta- bility to bar-mode formation sets in when #12; * #12;dyn ' 0. INTRODUCTION Stars in nature are usually rotating and subject to non- axisymmetric rotational instabilities

  18. Quasi-fission reactions as a probe of nuclear viscosity

    E-Print Network [OSTI]

    J. Velkovska; C. R. Morton; R. L. McGrath; P. Chung; I. Dioszegi

    1998-10-24

    Fission fragment mass and angular distributions were measured from the ^{64}Ni+^{197}Au reaction at 418 MeV and 383 MeV incident energy. A detailed data analysis was performed, using the one-body dissipation theory implemented in the code HICOL. The effect of the window and the wall friction on the experimental observables was investigated. Friction stronger than one-body was also considered. The mass and angular distributions were consistent with one-body dissipation. An evaporation code DIFHEAT coupled to HICOL was developed in order to predict reaction time scales required to describe available data on pre-scission neutron multiplicities. The multiplicity data were again consistent with one-body dissipation. The cross-sections for touch, capture and quasi-fission were also obtained.

  19. Bulk viscosity and cavitation in boost-invariant hydrodynamic expansion

    E-Print Network [OSTI]

    Rajagopal, Krishna

    We solve second order relativistic hydrodynamics equations for a boost-invariant 1+1-dimensional expanding fluid with an equation of state taken from lattice calculations of the thermodynamics of strongly coupled quark-gluon ...

  20. EFFECT OF GLASS COMPOSITION ON ACTIVATION ENERGY OF VISCOSITY...

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

    CdO, NiO) and added them to Others. Model 4. Models 0 to 3 started with all 6765 data. In Models 4 to 8, we removed from the database glasses with high fractions of minor...