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Note: This page contains sample records for the topic "medium viscosity navy" from the National Library of EnergyBeta (NLEBeta).
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We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


1

Navy Geothermal Plan  

SciTech Connect

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.

1984-12-01T23:59:59.000Z

2

Navy Technology Evaluation Update  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Techval Program Techval Program y g FUPWG FUPWG November 19, 2009 Ontario, CA Paul Kistler, PE CEM NAVFAC Engineering Service Center Port Hueneme CA Techval Navy Energy Techval Purpose Use the data collected by Techval to transition newer technologies into Navy wide use technologies into Navy wide use Use the data collected by Techval to prevent the Navy from investing in technologies that do not work investing in technologies that do not work Tech Assistance Help the Navy to meet increasingly tougher energy goals 2 * * * Navy Techval Green Light Technologies *Oil Free Magnetic Bearing Chiller Compressor *Spectrally Enhanced Lighting *Heat Pipes *Vending Machine Occupancy Sensor *Thermal Destratifiers Heat Pipes *Duct Sealants *HID Dimming Thermal Destratifiers

3

Navy Techval Program  

NLE Websites -- All DOE Office Websites (Extended Search)

ACTIVITY NAME ACTIVITY NAME Navy Techval Program Technology Deployment Working Group May 23, 2012 Paul Kistler, PE CEM NAVFAC Engineering Service Center Port Hueneme CA Navy Techval Magnetic Bearing Chiller Compressor What is it, how does it work? Data from projects Where does it work best? 3 Navy Techval Drawing courtesy of Danfoss Turbocor Compressors, Inc. The Magnetic Bearing Chiller Compressor at a Glance 4 2 ea. 60 ton chiller compressors with magnetic bearings NAS Jacksonville FL Navy Techval 5 Navy Techval 6 Navy Techval Compressor Efficacy Plant Efficacy Average Load Average Compressor Power Cooling Tower Power Plant Power New .57 kW/ton .61 kW/ton 75.4 ton 45.9kW 2.44kW 48.3 kW Existing 1.02 kW/ton 1.04 kW/ton 76.7 ton 78.5kW 1.55kW 80.1 kW

4

Navy Techval Program  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

ACTIVITY NAME ACTIVITY NAME Navy Techval Program Technology Deployment Working Group May 23, 2012 Paul Kistler, PE CEM NAVFAC Engineering Service Center Port Hueneme CA Navy Techval Magnetic Bearing Chiller Compressor What is it, how does it work? Data from projects Where does it work best? 3 Navy Techval Drawing courtesy of Danfoss Turbocor Compressors, Inc. The Magnetic Bearing Chiller Compressor at a Glance 4 2 ea. 60 ton chiller compressors with magnetic bearings NAS Jacksonville FL Navy Techval 5 Navy Techval 6 Navy Techval Compressor Efficacy Plant Efficacy Average Load Average Compressor Power Cooling Tower Power Plant Power New .57 kW/ton .61 kW/ton 75.4 ton 45.9kW 2.44kW 48.3 kW Existing 1.02 kW/ton 1.04 kW/ton 76.7 ton 78.5kW 1.55kW 80.1 kW

5

Passive retrofits for Navy housing  

DOE Green Energy (OSTI)

A project to assess and initiate passive solar energy retrofits to US Navy family housing is described. The current data base for Navy housing (ECOP), and its enhancement for passive solar purposes options proposed for Navy housing are explained. The analysis goals and methods to evaluate the retrofits are discussed. An educational package to explain the retrofits is described.

Hibbert, R.; Miles, C.; Jones, R.; Peck, C.; Anderson, J.; Jacobson, V.; Dale, A.M.

1985-01-01T23:59:59.000Z

6

Navy Techval Program  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

FUPWG FUPWG October 20, 2010 Rapid City, SD Paul Kistler, PE CEM NAVFAC Engineering Service Center Port Hueneme CA Navy Techval Program Techval 2 Navy Techval Program Technologies *Work Station Specific Lighting *CO2 HVAC control What is it, how does it work? Data from projects Where does it work best? 3 What Is It? 1. Pendant light used mainly in open cubicles 2. Each cubicle has own dedicated fixture 3. One up light 4. Two down lights 5. Down light dimmed by the occupant 6. Up light on time clock 7. Occupancy sensor 8. Day light sensor 9. T5 5000K 10.Does not replace task lighting Work Station Specific Lighting 4 Work Station Specific Lighting Projected Savings 1. Projected payback is 17 years 2. Projected pay back on incremental cost is 3 to 4 years 3. Recent projects indicate a total savings of 70% lighting

7

Navy Technology Validation (Techval)  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Technology Technology Validation (Techval) FUPWG Spring Meeting 2008 April 15, 2008 Destin, FL Paul Kistler, PE CEM NAVFAC Engineering Service Center Port Hueneme CA Navy Techval CURRENT PROJECTS * Cool Roof reflective roof coating  NS Pearl Harbor HI * Thermal Destratifiers  NAS Oceana VA * Boiler Combustion Controls  USNA Annapolis MD * Sand Filters  NAS Lemoore CA * Spectrally Enhanced Lighting  Navy Yard Washington DC * Desuperheater  NS Norfolk VA  NAS North Island CA * HVAC CO2 Controls  NAB Little Creek VA  NAVSUPPACT Mid-South TN  NB Kitsap Bremerton WA *HVAC Occupancy Controls NAS Oceana VA *Electromagnetic Pulse Water Treatment NADEP San Diego CA NSY Puget Sound WA *LED Parking Lot Lighting NBVC Port Hueneme CA Techval

8

Nuclear Navy | Y-12 National Security Complex  

NLE Websites -- All DOE Office Websites (Extended Search)

News Y-12 Report Nuclear Navy Nuclear Navy Posted: February 7, 2013 - 6:57pm | Y-12 Report | Volume 9, Issue 2 | 2013 Since U.S. Navy Capt. Hyman Rickover first visited Oak...

9

Navy Heat Source Safety Tests  

SciTech Connect

The purpose of these tests was to validate the integrity of the Navy Heat Source after imposing conditions which might, in the extreme, be encountered singly or serially so that safety would be assured.

Anderson, C. G.; Cartmill, W. B.

1975-06-18T23:59:59.000Z

10

The Navy's Operational Atmospheric Analysis  

Science Conference Proceedings (OSTI)

In January of 1988, significant upgrades were made to the Navy Operational Global Atmospheric Prediction System (NOGAPS). Among these improvements was the implementation of a multivariate optimum interpolation analysis scheme. Since that time, ...

James S. Goerss; Patricia A. Phoebus

1992-06-01T23:59:59.000Z

11

Navy fuel cell demonstration project.  

DOE Green Energy (OSTI)

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.

Black, Billy D.; Akhil, Abbas Ali

2008-08-01T23:59:59.000Z

12

Powering the Nuclear Navy | National Nuclear Security Administration  

National Nuclear Security Administration (NNSA)

The National Nuclear Security Administration Powering the Nuclear Navy Home > Our Mission > Powering the Nuclear Navy Powering the Nuclear Navy The Naval Nuclear Propulsion Program...

13

Navy Geothermal Program | Open Energy Information  

Open Energy Info (EERE)

Navy Geothermal Program Navy Geothermal Program Jump to: navigation, search Logo: Navy Geothermal Program Office Name Navy Geothermal Program Office Address 429 East Bowen Road Place China Lake, CA Zip 93555 Year founded 1978 Phone number (760) 939-2700 Website https://portal.navfac.navy.mil References Navy Facilities Engineering Command Website[1] Navy Geothermal Program is an organization based in China Lake, CA. The Navy Geothermal Program Office (GPO) is the Department of Defense's lead organization for the exploration, development, and management of geothermal resources on military controlled land, worldwide. The Department of Defense (DOD) established the GPO in 1978, and designated the Navy as the lead agency for geothermal exploration and development on military lands.

14

Philadelphia Navy Yard: UESC Project  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Navy Yard Navy Yard UESC project with PGW ESCO Perspective Presented by Christopher Abbuehl Constellation Energy Integrated Energy Company * Generation - 12,000+ megawatts of owned generating capacity (fossil, nuclear &renewable ) * Electric Commodity - 62 million MWH peak load served to retail power customers (2010) Trusted supplier to 2/3 of the Fortune 100 * Gas Commodity - 334 million mmBTUs of natural gas delivered in open retail markets (2010) * Owns Baltimore Gas and Electric ESCO Services * More than 25 years of comprehensive energy projects through performance contracting. * Over 4,000 Energy Savings Projects implemented for large governmental, institutional, and private sector customers Constellation Energy Key Facts 2 * Established: 1816 *

15

Voice says it all in the Navy  

Science Conference Proceedings (OSTI)

The commercial potential for voice technology innovations currently being developed by the U.S. Navy is immense.

David J. Paper; James A. Rodger; Steven J. Simon

2004-08-01T23:59:59.000Z

16

Viscosity measuring using microcantilevers  

DOE Patents (OSTI)

A method for the measurement of the viscosity of a fluid uses a micromachined cantilever mounted on a moveable base. As the base is rastered while in contact with the fluid, the deflection of the cantilever is measured and the viscosity determined by comparison with standards.

Oden, Patrick Ian (Plano, TX)

2001-01-01T23:59:59.000Z

17

USDA, Departments of Energy and Navy Seek Input from Industry...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Departments of Energy and Navy Seek Input from Industry to Advance Biofuels for Military and Commercial Transportation USDA, Departments of Energy and Navy Seek Input from Industry...

18

Navy I Geothermal Facility | Open Energy Information  

Open Energy Info (EERE)

Navy I Geothermal Facility Navy I Geothermal Facility Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Navy I Geothermal Facility General Information Name Navy I Geothermal Facility Facility Navy I Sector Geothermal energy Location Information Location Coso Junction, California Coordinates 36.03735294063°, -117.79768466949° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":36.03735294063,"lon":-117.79768466949,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

19

Comparison of the Navy Working Capital Fund and mission funding as applied to Navy shipyards .  

E-Print Network (OSTI)

??The dramatic political and economic events, both globally and within the United States, during the early 1990s led to significant changes to the Navy shipyard (more)

Cain, Andrew M.

2006-01-01T23:59:59.000Z

20

Early dissipation and viscosity  

E-Print Network (OSTI)

We consider dissipative phenomena due to the relaxation of an initial anisotropic local pressure in the fireball created in relativistic heavy-ion collisions, both for the Bjorken boost-invariant case and for the azimuthally symmetric radial expansion with boost-invariance. The resulting increase of the entropy can be counterbalanced by a suitable retuning of the initial temperature. An increase of the transverse collective flow is observed. The influence of the shear viscosity on the longitudinal expansion is also studied. Viscosity reduces the cooling rate from the longitudinal work and counteracts the pressure gradients that accelerate the longitudinal flow.

Piotr Bozek

2008-04-24T23:59:59.000Z

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


21

Reference Values of Gas Viscosity  

Science Conference Proceedings (OSTI)

... only 0.08%. The viscosity of hydrogen, methane, and xenon will be obtained with similarly small uncertainties. The low ...

2011-12-15T23:59:59.000Z

22

DEPARTMENT OF THE NAVY Energy Goals  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

NAVY NAVY Energy Goals 31 May 2013 CAPT Kerry Gilpin, USN Director, 1GW Task Force Marines checking door-to-door in New Orleans, September 2005 SECNAV Energy Goals Increase Alternative Energy Sources Ashore Sail the "Great Green Fleet" Reduce Non-tactical Petroleum Use Energy Efficient Acquisitions Increase Alternative Energy Department-wide It's about the Mission Gunnery Control Console, USS ANZIO (CG 68) What's the next mission? SH-60F helicopter from USS RONALD REAGAN (CVN 76) surveys tsunami damage, 21 March 2011 1GW of renewable energy: enough to power 250,000 homes or a city the size of Orlando, FL http://www.secnav.navy.mil/eie/ Pages/Energy.aspx Naval Station Sasebo, Japan

23

Navy II Geothermal Facility | Open Energy Information  

Open Energy Info (EERE)

II Geothermal Facility II Geothermal Facility Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Navy II Geothermal Facility General Information Name Navy II Geothermal Facility Facility Navy II Sector Geothermal energy Location Information Location Coso Junction, California Coordinates 36.018975669535°, -117.79197692871° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":36.018975669535,"lon":-117.79197692871,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

24

Carports with Solar Panels do Double Duty for Navy | Department...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Carports with Solar Panels do Double Duty for Navy Carports with Solar Panels do Double Duty for Navy May 14, 2010 - 12:22pm Addthis Joshua DeLung What does this project do? In...

25

PNNL Helps the Navy Stay Cool and Conserve Fuel | Department...  

NLE Websites -- All DOE Office Websites (Extended Search)

Helps the Navy Stay Cool and Conserve Fuel PNNL Helps the Navy Stay Cool and Conserve Fuel July 30, 2013 - 3:33pm Addthis As a Laboratory Fellow at the Energy Department's Pacific...

26

Bulk viscosity in quasi particle models  

E-Print Network (OSTI)

We discuss transport properties of dynamical fluid composed of quasi-particles whose masses depend on temperature and charge chemical potentials. Based on the relativistic kinetic theory formulated under the relaxation time approximation, we derive a general expression for the bulk viscosity in the quasi-particle medium. We show that dynamically generated particle masses imply an essential modification of the fluid compressibility. As an application of our results we consider a class of quasi-particle models with the chiral phase transition belonging to O(4) and Z(2) universality class. Based on the Ginzburg-Landau and the scaling theory we study the critical properties of the bulk viscosity zeta near the phase transition. We show that under the relaxation time approximation the zeta is not expected to show singular behavior near the O(4) and Z(2) critical point through static critical exponents.

Sasaki, C

2008-01-01T23:59:59.000Z

27

Bulk viscosity in quasi particle models  

E-Print Network (OSTI)

We discuss transport properties of dynamical fluid composed of quasi-particles whose masses depend on temperature and charge chemical potentials. Based on the relativistic kinetic theory formulated under the relaxation time approximation, we derive a general expression for the bulk viscosity in the quasi-particle medium. We show that dynamically generated particle masses imply an essential modification of the fluid compressibility. As an application of our results we consider a class of quasi-particle models with the chiral phase transition belonging to O(4) and Z(2) universality class. Based on the Ginzburg-Landau and the scaling theory we study the critical properties of the bulk viscosity zeta near the phase transition. We show that under the relaxation time approximation the zeta is not expected to show singular behavior near the O(4) and Z(2) critical point through static critical exponents.

C. Sasaki; K. Redlich

2008-06-29T23:59:59.000Z

28

Powering the Nuclear Navy | National Nuclear Security Administration  

NLE Websites -- All DOE Office Websites (Extended Search)

Powering the Nuclear Navy Powering the Nuclear Navy Home > About Us > Our Programs > Powering the Nuclear Navy Powering the Nuclear Navy The Naval Nuclear Propulsion Program provides militarily effective nuclear propulsion plants and ensures their safe, reliable and long-lived operation. This mission requires the combination of fully trained U.S. Navy men and women with ships that excel in endurance, stealth, speed, and independence from supply chains. NNSA's Navy Reactors Program provides the design, development and operational support required to provide militarily effective nuclear propulsion plants and ensure their safe, reliable and long-lived operation. This budget requests more than $1 billion to power a modern nuclear Navy: Continuation of design and development work for the OHIO-class

29

Shear viscosity of nuclear matter  

E-Print Network (OSTI)

In this talk I report my recent study on the shear viscosity of neutron-rich nuclear matter from a relaxation time approach. An isospin- and momentum-dependent interaction is used in the study. Effects of density, temperature, and isospin asymmetry of nuclear matter on its shear viscosity have been discussed. Similar to the symmetry energy, the symmetry shear viscosity is defined and its density and temperature dependence are studied.

Jun Xu

2013-02-01T23:59:59.000Z

30

Shear viscosity of nuclear matter  

E-Print Network (OSTI)

In this talk I report my recent study on the shear viscosity of neutron-rich nuclear matter from a relaxation time approach. An isospin- and momentum-dependent interaction is used in the study. Effects of density, temperature, and isospin asymmetry of nuclear matter on its shear viscosity have been discussed. Similar to the symmetry energy, the symmetry shear viscosity is defined and its density and temperature dependence are studied.

Xu, Jun

2013-01-01T23:59:59.000Z

31

Physical viscosity in smoothed particle hydrodynamics simulations of galaxy clusters  

E-Print Network (OSTI)

Most hydrodynamical simulations of galaxy cluster formation carried out to date have tried to model the cosmic gas as an ideal, inviscid fluid, where only a small amount of (unwanted) numerical viscosity is present, arising from practical limitations of the numerical method employed, and with a strength that depends on numerical resolution. However, the physical viscosity of the gas in hot galaxy clusters may in fact not be negligible, suggesting that a self-consistent treatment that accounts for the internal gas friction would be more appropriate. To allow such simulations using the smoothed particle hydrodynamics (SPH) method, we derive a novel SPH formulation of the Navier-Stokes and general heat transfer equations and implement them in the GADGET-2 code. We include both shear and bulk viscosity stress tensors, as well as saturation criteria that limit viscous stress transport where appropriate. Adopting Braginskii's parameterization for the shear viscosity of hot gaseous plasmas, we then study the influence of viscosity on the interplay between AGN-inflated bubbles and the surrounding intracluster medium (ICM). We find that certain bubble properties like morphology, maximum clustercentric radius reached, or survival time depend quite sensitively on the assumed level of viscosity. Interestingly, the sound waves launched into the ICM by the bubble injection are damped by physical viscosity, establishing a non-local heating process. Finally, we carry out cosmological simulations of galaxy cluster formation with a viscous intracluster medium. Viscosity modifies the dynamics of mergers and the motion of substructures through the cluster atmosphere. Substructures are generally more efficiently stripped of their gas, leading to prominent long gaseous tails behind infalling massive halos. (Abridged)

Debora Sijacki; Volker Springel

2006-05-11T23:59:59.000Z

32

The navy mobility fuels data center  

Science Conference Proceedings (OSTI)

The Navy Mobility Fuels Reference File is a computer searchable library of technical literature dealing with properties of synthetic and petroleum fuels and their effects on gas turbines, diesel engines, steam boilers, and fuel systems. It contains over 1800 technical reports, papers, and articles relating some aspect of fuel composition to some aspect of engine performance or operation. The system is available to qualified users through remote terminal devices compatible with Battelle's CDC computer.

Gubiotti, R.A.; Hazard, H.R.; Hershner, C.

1982-01-01T23:59:59.000Z

33

US Navy mobility fuels: Worldwide survey and analysis of both commercial and Navy fuels. Final report  

SciTech Connect

Quality and worldwide availability of distillate fuels have become increasing concerns to the U.S. Department of Defense. In response to these concerns, the David Taylor Research Center (DTRC) has conducted a worldwide survey of such fuels through a contract with the National Institute for Petroleum and Energy Research (NIPER). Representative fuels were collected at both Navy and commercial ports around the world through a NIPER subcontract to ABS Worldwide Technical Services (ABSTECH). The collected fuels were Naval Distillate Fuel (MIL-F-16884H, NATO F-76), Marine Gas Oil (MGO), Heavy Marine Gas Oil (HMGO), and Marine Diesel Fuel (MDF) for the Navy; Automotive/Truck Diesel for the Army; and Aviation Turbine Fuel (MIL-T-5624L, NATO JP-5) for the Naval Air Propulsion Center. The Navy F-76 fuel samples were characterized at NIPER by 44 different fuel property analyses.

Woodward, P.W.; Shay, J.Y.

1989-07-01T23:59:59.000Z

34

Duncan - Rickover and the Nuclear Navy | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Operational Management » History » Historical Resources » Operational Management » History » Historical Resources » History Publications » Duncan - Rickover and the Nuclear Navy Duncan - Rickover and the Nuclear Navy Francis Duncan. Rickcover and the Nuclear Navy: The Discipline of Technology. 1989. The text in each PDF is fully searchable. DuncanRickoverandtheNuclearNavyComplete.pdf DuncanRickoverandtheNuclearNavyPicturesOnly.pdf More Documents & Publications Hewlett and Duncan, Nuclear Navy, 1946-1962 2008_Transition_Program_Details_Book_Three.pdf Hewlett and Holl - Atoms for Peace and War Aviation Management Green Leases Executive Secretariat Energy Reduction at HQ Real Estate Approvals Documents and Publications Facilities and Infrastructure Federal Advisory Committee Management Freedom of Information Act

35

U.S. Navy - Moanalua Terrace, Hawaii | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Moanalua Terrace, Hawaii Moanalua Terrace, Hawaii U.S. Navy - Moanalua Terrace, Hawaii October 7, 2013 - 10:10am Addthis Photo of the Moanalua Terrace U.S. Navy Housing Project on Oahu, Hawaii Moanalua Terrace is a U.S. Navy housing project on Oahu, Hawaii. At this site the Navy had demolished 752 units of family housing, which were being rebuilt in four phases. The Hawaiian Electric Company's (HECO's) $1,500 per unit rebate for solar water heaters installed on new construction projects was an incentive for the Navy to install solar water heaters on family housing units. When the 100 homes in Phase I were built, money was not available for solar water heaters. However, the Navy secured a $130,000 grant from the Federal Energy Management Program (FEMP) to retrofit the Phase I homes with solar

36

Nuclear Navy Turns 50 | National Nuclear Security Administration  

National Nuclear Security Administration (NNSA)

Navy Turns 50 | National Nuclear Security Administration Navy Turns 50 | National Nuclear Security Administration Our Mission Managing the Stockpile Preventing Proliferation Powering the Nuclear Navy Emergency Response Recapitalizing Our Infrastructure Continuing Management Reform Countering Nuclear Terrorism About Us Our Programs Our History Who We Are Our Leadership Our Locations Budget Our Operations Media Room Congressional Testimony Fact Sheets Newsletters Press Releases Speeches Events Social Media Video Gallery Photo Gallery NNSA Archive Federal Employment Apply for Our Jobs Our Jobs Working at NNSA Blog Home > About Us > Our History > NNSA Timeline > Nuclear Navy Turns 50 Nuclear Navy Turns 50 August 01, 1998 Washington, DC Nuclear Navy Turns 50 Crew members of the U.S.S. Enterprise, the first nuclear-powered aircraft

37

Nuclear Navy Turns 50 | National Nuclear Security Administration  

NLE Websites -- All DOE Office Websites (Extended Search)

Navy Turns 50 | National Nuclear Security Administration Navy Turns 50 | National Nuclear Security Administration Our Mission Managing the Stockpile Preventing Proliferation Powering the Nuclear Navy Emergency Response Recapitalizing Our Infrastructure Continuing Management Reform Countering Nuclear Terrorism About Us Our Programs Our History Who We Are Our Leadership Our Locations Budget Our Operations Media Room Congressional Testimony Fact Sheets Newsletters Press Releases Speeches Events Social Media Video Gallery Photo Gallery NNSA Archive Federal Employment Apply for Our Jobs Our Jobs Working at NNSA Blog Home > About Us > Our History > NNSA Timeline > Nuclear Navy Turns 50 Nuclear Navy Turns 50 August 01, 1998 Washington, DC Nuclear Navy Turns 50 Crew members of the U.S.S. Enterprise, the first nuclear-powered aircraft

38

Navy Coastal Ocean Model (NCOM), South Atlantic Bight | Data...  

NLE Websites -- All DOE Office Websites (Extended Search)

first-generation global system, a progression of planned ocean analysis and forecast systems delivered for Navy operations at the Naval Oceanographic Office (NAVOCEANO)....

39

Forecast error metrics for Navy inventory management performance .  

E-Print Network (OSTI)

??This research establishes metrics for determining overall Navy secondary inventory forecasting accuracy when compared to actual demands at the Naval Inventory Control Point (NAVICP). Specifically, (more)

Jackson, Kenneth J.

2011-01-01T23:59:59.000Z

40

U.S. Navy Launches First Nuclear Sub | National Nuclear Security...  

National Nuclear Security Administration (NNSA)

> U.S. Navy Launches First Nuclear Sub U.S. Navy Launches First Nuclear Sub January 21, 1954 Thames River (Groton, Conn.) U.S. Navy Launches First Nuclear Sub The first nuclear sub...

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


41

Energy consumption evaluation of United States Navy LEED certified buildings for fiscal year 2009 .  

E-Print Network (OSTI)

??As of October 1, 2008, the Department of the Navy inserted the requirement that all new buildings constructed for the United States Navy and United (more)

Mangasarian, Seth

2010-01-01T23:59:59.000Z

42

Presentation to the EAC - Philadelphia Navy Yard - Will Agate  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

NAVY YARD NAVY YARD The Navy Yard Background * 125 years as an active military base & shipyard * Regional economic hub * 1,000 acres acquired in 2000 * Growth capacity * Access to:  Airport  Universities  Regional Highways  Labor Force * Historic Waterfront Campus Master Plan: Sustainability * Building Design - LEED & Design Review * Open Space * Stormwater Management * Site Operations * Smart Grid & Renewable Power * Business Development Opportunity Master Plan The Navy Yard Today * Over 120 companies and 3 Navy activities * 10,000 employees by end of 2012 * In excess of 6.5 million sq ft occupied * +$650 million of private investment * Industrial, Office and R&D campus The Energy Efficient Buildings Hub A U.S. Department of Energy Innovation Hub located at

43

Navy Lowering Upfront Costs to Save Energy | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Navy Lowering Upfront Costs to Save Energy Navy Lowering Upfront Costs to Save Energy Navy Lowering Upfront Costs to Save Energy June 21, 2010 - 11:23am Addthis This hangar at Naval Air Station Meridian in Mississippi received an energy-efficiency makeover that included major lighting retrofits and water conservation measures. | Photo Courtesy U.S. Navy This hangar at Naval Air Station Meridian in Mississippi received an energy-efficiency makeover that included major lighting retrofits and water conservation measures. | Photo Courtesy U.S. Navy Joshua DeLung What does this mean for me? 2 mechanical project upgrades, 16 lighting project upgrades and 19 water conservation measures $267,565 in taxpayer money saved annually 3.1 million gallons of water saved annuallym 1,889 MWh of electricity saved annually and 56,118 therms natural gas saved annually

44

Manhattan Project: The Navy and Thermal Diffusion, 1944  

Office of Scientific and Technical Information (OSTI)

Diffusion columns, S-50 Thermal Diffusion Plant, Oak Ridge, 1945. THE NAVY AND THERMAL DIFFUSION Diffusion columns, S-50 Thermal Diffusion Plant, Oak Ridge, 1945. THE NAVY AND THERMAL DIFFUSION (Oak Ridge: Clinton, 1944) Events > The Uranium Path to the Bomb, 1942-1944 Y-12: Design, 1942-1943 Y-12: Construction, 1943 Y-12: Operation, 1943-1944 Working K-25 into the Mix, 1943-1944 The Navy and Thermal Diffusion, 1944 As problems with both Y-12 and K-25 reached crisis proportions in spring and summer 1944, the Manhattan Project received help from an unexpected source: the United States Navy. President Roosevelt had instructed that the atomic bomb effort be an Army program and that the Navy be excluded from deliberations. Navy research on atomic power, conducted primarily for submarines, received no direct aid from Leslie Groves, who, in fact, was not up-to-date on the state of Navy efforts when he received a letter on the subject from Robert Oppenheimer late in April 1944.

45

UESC Case Study: Philadelphia Navy Yard  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Case Study Case Study Philadelphia Navy Yard Presented by M. Richard Boyette and Beverly C. Wade 26 October 2011 UESC Financed Energy Projects - Basics Aligning NAVFAC Business Practices with Federal Energy Management Program Processes NAVFAC BMS 5.1.3 UESC Process FEMP UESC Process 2 Sometimes things are difficult, but hard work overcomes obstacles !!!!! Financed Energy Projects - Challenges * Financed Energy Project Challenges * General Issues * Financed projects are designed to save energy costs but overarching goals are set up to reduce energy usage and energy intensity. * Financed projects favor regions or bases with higher utility rates. * Financed projects cannot be utilized in cases where energy consumption is reduced substantially but energy cost savings is

46

Anomalous-viscosity current drive  

DOE Patents (OSTI)

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.

Stix, T.H.; Ono, M.

1986-04-25T23:59:59.000Z

47

Navy Catching Waves in Hawaii | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Navy Catching Waves in Hawaii Navy Catching Waves in Hawaii Navy Catching Waves in Hawaii June 2, 2010 - 11:56am Addthis This experimental power-generating buoy installed off the coast of Oahu can produce enough energy to power 25 homes under optimal conditions. | Photo courtesy of Ocean Power Technologies, Inc. This experimental power-generating buoy installed off the coast of Oahu can produce enough energy to power 25 homes under optimal conditions. | Photo courtesy of Ocean Power Technologies, Inc. To a casual observer, the buoy off the shore of Marine Corps Base Hawaii (MCBH) might look like nothing more than a bright yellow spot in a blue ocean. But this isn't an ordinary buoy - it's a small electrical generator, creating renewable electricity as it bobs up and down on the waves. It's also a test project by the U.S. Navy to see whether a wider

48

EA-1876: Pennsylvania State Energy Program's Conergy Navy Yard Solar  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

76: Pennsylvania State Energy Program's Conergy Navy Yard 76: Pennsylvania State Energy Program's Conergy Navy Yard Solar Project, Philadelphia, Pennsylvania EA-1876: Pennsylvania State Energy Program's Conergy Navy Yard Solar Project, Philadelphia, Pennsylvania Overview 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. After considering a number of alternative PV configurations and acquiring land via a lease to install the facility, the project proponents have identified a final proposed layout that meets the production criteria and minimizes the footprint of the system. The

49

Navy's Geothermal Program Office: Overview of Recovery Act (ARRA) Funded  

Open Energy Info (EERE)

Navy's Geothermal Program Office: Overview of Recovery Act (ARRA) Funded Navy's Geothermal Program Office: Overview of Recovery Act (ARRA) Funded Exploration in CA and NV and other Exploration Projects Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference Paper: Navy's Geothermal Program Office: Overview of Recovery Act (ARRA) Funded Exploration in CA and NV and other Exploration Projects Details Activities (9) Areas (6) Regions (0) Abstract: The Navy's Geothermal Program Office (GPO) manages, explores for and supports the development of geothermal resources on Department of Defense (DoD) -managed lands. We are currently conducting exploration in 13 sites or regions on 6 military installations in Nevada and California. We also have tentative plans to expand our activities late this year or early next year into Utah as well as Guam and the Republic of Djibouti, northeast

50

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

Office of Legacy Management (LM)

Navy Ammunition Depot - NJ 15 Navy Ammunition Depot - NJ 15 FUSRAP Considered Sites Site: NAVY AMMUNITION DEPOT (NJ.15) Eliminated from further consideration under FUSRAP - Referred to DOD Designated Name: Not Designated Alternate Name: None Location: Earle, New Jersey NJ.15-1 Evaluation Year: 1987 NJ.15-2 Site Operations: Storage facility and disposal unit for drummed radioactive waste that was dumped at sea. NJ.15-1 Site Disposition: Eliminated - Referred to DOD NJ.15-2 Radioactive Materials Handled: Yes Primary Radioactive Materials Handled: Radioactive Waste Materials NJ.15-2 Radiological Survey(s): None Indicated Site Status: Eliminated from further consideration under FUSRAP - Referred to DOD NJ.15-2 Also see Documents Related to NAVY AMMUNITION DEPOT NJ.15-1 - AEC Memorandum; Piccot to the Files; Subject: Visit to

51

Toward Automated Interpretation of Satellite Imagery for Navy Shipboard Applications  

Science Conference Proceedings (OSTI)

The U.S. Navy has plans to develop an automated system to analyze satellite imagery aboard its ships at sea. Lack of time for training, in combination with frequent personnel rotations, precludes the building of extensive imagery interpretation ...

James E. Peak; Paul M. Tag

1992-07-01T23:59:59.000Z

52

EA-1876: Pennsylvania State Energy Program's Conergy Navy Yard...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

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...

53

Project Title: VIscosity Reduction Date:  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

4t 3 4t 3 l I Project lnfonnatlon Project Title: VIscosity Reduction Date: 11-22-2010 DOE Code: 673()-()20-51141 Contractor Code: 8067-778 Project Lead: Frank Ingham Project Overview 1. The purpose of the project is to test a tool that temporarily reduces the viscosity of oil which allows it to be 1. Brief project description ~nclude pumped through pipelines easier. The test will require about 4 miles of line to pump the oil through after anything that could impact the treatment (hence the need to connect the 31oops together), a holding volume for recovery, then repeat. environmenJ] There will be tanks to hold the original volume, tanks to receive the volume after treatment and pumping 2. Legal location through the line, possible transfer between tanks, transport (trucking) of the oil to the site (by the COC) and

54

Hewlett and Duncan, Nuclear Navy, 1946-1962 | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Duncan, Nuclear Navy, 1946-1962 Duncan, Nuclear Navy, 1946-1962 Hewlett and Duncan, Nuclear Navy, 1946-1962 Richard G. Hewlett and Francis Duncan. Nuclear Navy: 1946-1962. Chicago: University of Chicago Press, 1974. 477 pp. History Office publication. Traces growth of U.S. Navy's nuclear fleet from earliest beginnings to 1962 when twenty-seven submarines and three surface ships were in operation. Focuses on Admiral Hyman G. Rickover as the driving force who convinced the Navy and the Atomic Energy Commission to support the project and who then shepherded it to success. HewlettandDuncanNuclearNavyComplete.pdf HewlettandDuncanNuclearNavyFiguresOnly.pdf More Documents & Publications Duncan - Rickover and the Nuclear Navy 2008_Transition_Program_Details_Book_Three.pdf Hewlett and Anderson - New World

55

Hall viscosity from gauge/gravity duality  

E-Print Network (OSTI)

In (2+1)-dimensional systems with broken parity, there exists yet another transport coefficient, appearing at the same order as the shear viscosity in the hydrodynamic derivative expansion. In condensed matter physics, it is referred to as "Hall viscosity". We consider a simple holographic realization of a (2+1)-dimensional isotropic fluid with broken spatial parity. Using techniques of fluid/gravity correspondence, we uncover that the holographic fluid possesses a nonzero Hall viscosity, whose value only depends on the near-horizon region of the background. We also write down a Kubo's formula for the Hall viscosity. We confirm our results by directly computing the Hall viscosity using the formula.

Omid Saremi; Dam Thanh Son

2011-03-24T23:59:59.000Z

56

United States Department Of The Navy Geothermal Exploration Leading To  

Open Energy Info (EERE)

Department Of The Navy Geothermal Exploration Leading To Department Of The Navy Geothermal Exploration Leading To Shallow And Intermediate-Deep Drilling At Hawthorne Ammunition Depot, Hawthorne, Nv Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference Paper: United States Department Of The Navy Geothermal Exploration Leading To Shallow And Intermediate-Deep Drilling At Hawthorne Ammunition Depot, Hawthorne, Nv Details Activities (6) Areas (1) Regions (0) Abstract: Results of geological, geochemical, and geophysical studies performed by personnel from the Geothermal Program Office (GPO) strongly suggested that there is a geothermal resource beneath lands controlled by the Hawthorne Ammunition Depot. The geothermal fluid is thought to be convecting meteoric water that is derived from precipitation within the

57

Nuclear Navy United States Atomic Energy Commission Historical Advisory  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Navy Navy United States Atomic Energy Commission Historical Advisory Committee Chairman, Alfred D. Chandler, Jr. Harvard University John T. Conway Consolidated Edison Company Lauchlin M. Currie Carmel, California A. Hunter Dupree Brown University Ernest R. May Harvard University Robert P. Multhauf Smithsonian Institution Nuclear Navy 1946-1962 Richard G. Hewlett and Francis Duncan The University of Chicago Press Chicago and London The University of Chicago Press Chicago 60637 The University of Chicago Press Ltd., London Published 1974 Printed in the United States of America International Standard Book Number: 0-226-33219-5 Library of Congress Catalog Card Number: 74-5726 RICHARD G. HEWLETT is chief historian of the U. S. Atomic Energy Commission. He is coauthor, with Oscar E.

58

DOE - Office of Legacy Management -- Philadelphia Navy Yard - PA 08  

NLE Websites -- All DOE Office Websites (Extended Search)

Philadelphia Navy Yard - PA 08 Philadelphia Navy Yard - PA 08 FUSRAP Considered Sites Site: PHILADELPHIA NAVY YARD (PA.08) Eliminated from further consideration under FUSRAP - Referred to DOD Designated Name: Not Designated Alternate Name: None Location: Philadelphia , Pennsylvania PA.08-1 Evaluation Year: 1987 PA.08-1 Site Operations: Abelson's S-50 thermal diffusion pilot plant was built and operated on this facility in 1944 and large quantities of uranium hexafluoride were processed in 1945. PA.08-1 Site Disposition: Eliminated - Referred to DOD PA.08-1 Radioactive Materials Handled: Yes Primary Radioactive Materials Handled: Uranium oxide (hexaflouride) PA.08-1 Radiological Survey(s): None Indicated Site Status: Eliminated from further consideration under FUSRAP - Referred to DOD PA.08-1

59

Federal Energy Management Program: U.S. Navy - Moanalua Terrace, Hawaii  

NLE Websites -- All DOE Office Websites (Extended Search)

U.S. Navy - U.S. Navy - Moanalua Terrace, Hawaii to someone by E-mail Share Federal Energy Management Program: U.S. Navy - Moanalua Terrace, Hawaii on Facebook Tweet about Federal Energy Management Program: U.S. Navy - Moanalua Terrace, Hawaii on Twitter Bookmark Federal Energy Management Program: U.S. Navy - Moanalua Terrace, Hawaii on Google Bookmark Federal Energy Management Program: U.S. Navy - Moanalua Terrace, Hawaii on Delicious Rank Federal Energy Management Program: U.S. Navy - Moanalua Terrace, Hawaii on Digg Find More places to share Federal Energy Management Program: U.S. Navy - Moanalua Terrace, Hawaii on AddThis.com... Energy-Efficient Products Technology Deployment Renewable Energy Federal Requirements Renewable Resources & Technologies Project Planning & Implementation

60

The Navy Operational Global and Regional Atmospheric Prediction Systems at the Fleet Numerical Oceanography Center  

Science Conference Proceedings (OSTI)

At the Fleet Numerical Oceanography Center, two computer models, the Navy Operational Global Atmospheric Prediction System, NOGAPS, and the Navy Operational Regional Atmospheric Prediction System, NORAPS, generate a twice-daily suite of ...

Gail Bayler; Howard Lewit

1992-06-01T23:59:59.000Z

Note: This page contains sample records for the topic "medium viscosity navy" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
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61

The Design and Testing of the Navy Operational Global Atmospheric Prediction System  

Science Conference Proceedings (OSTI)

The Navy Operational Global Atmospheric Prediction System (NOGAPS) has proven itself to be competitive with any of the large forecast models run by the large operational forecast centers around the world. The navy depends on NOGAPS for an ...

Thomas E. Rosmond

1992-06-01T23:59:59.000Z

62

Viscosity of High Energy Nuclear Fluids  

E-Print Network (OSTI)

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.

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

2007-03-15T23:59:59.000Z

63

Cooperative MPC&A Enhancements at Russian Navy Sites  

SciTech Connect

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.

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

2001-05-30T23:59:59.000Z

64

A viscosity counteracting approach in the lattice Boltzmann BGK model for low viscosity flow: Preliminary verification  

Science Conference Proceedings (OSTI)

Due to numerical instability, the lattice Boltzmann model (LBM) with the Bhatnagar-Gross-Krook (BGK) collision operator has some limitations in the simulation of low viscosity flows. In this paper, we propose a viscosity counteracting approach for simulating ... Keywords: Couette flow, Lattice Boltzmann BGK model, Lid-driven cavity flow, Poiseuille flow, Taylor-Green vortex flow, Verification, Viscosity counteracting

Yongguang Cheng; Hui Zhang

2011-06-01T23:59:59.000Z

65

Executive Director for Operations OPTIONS FOR U.S. NUCLEAR REGULATORY COMMISSION INVOLVEMENT WITH THE NAVYS REMEDIATION OF THE  

E-Print Network (OSTI)

To obtain Commission approval on options for the U.S. Nuclear Regulatory Commissions (NRCs) involvement with the Navys remediation of the Hunters Point Naval Shipyard (HPS) site, and recommended actions to inform the U.S. Environmental Protection Agency (EPA), the Navy, and stakeholders about the Commissions decision regarding NRCs involvement. This paper does not address any new commitments. SUMMARY: In July 2007 the Navy requested that NRC clarify the potential for NRC involvement with the remediation of the HPS site in San Francisco, California. The Navy explained that resolving uncertainties about NRC jurisdiction and involvement is important because of the potential impact on the Navys ongoing remediation and expedited schedules needed to support the redevelopment plans of the City of San Francisco for the site. These redevelopment plans and schedules have high visibility and considerable support from elected Federal, State, and local officials. In response to the Navys request, the staff has evaluated three options for NRCs involvement at the HPS and related policy issues. The staff recommends the option of relying CONTACT:

R. W. Borchardt; Robert L. Johnson

2008-01-01T23:59:59.000Z

66

Effect of water dissolution on oil viscosity  

Science Conference Proceedings (OSTI)

Water dissolution in crude oil becomes significant at temperatures > 150 C, and 250 C, water solubilities in heavy crudes are [approx]40 mol%. Dissolved water acts as a low-viscosity solvent that reduces oil-phase viscosity. This phenomenon has been considered in thermal recovery simulations but has never been substantiated. In this work, the effect of water on viscosity was measured for four crude samples with gravities ranging from 0.97 to 1.03 g/cm[sup 3]. At the highest experimental temperature of 286 C, viscosities of water-saturated samples were about one-half those of water-free counterparts. The viscosity reduction, although quite significant, was not as pronounced as the drop estimated by viscosity mixing rules used for hydrocarbon systems. While a log mixing rule or a one-quarter power mixing rule overestimated viscosity effects, a mole-fraction-weighted average of oil and water viscosities matched the experimental data. A possible explanation for failure of the log mixing rule is that the water dissolved in the oil exists not as monomers but as hydrogen-bonded clusters. The authors find good agreement with experiment when the mole fraction of water clusters, calculated from a statistical mechanics based theory is used in the log mixing rule.

Giandt, C.A. (Shell Development Co., Houston, TX (United States)); Chapman, W.G. (Rice Univ., Houston, TX (United States))

1995-02-01T23:59:59.000Z

67

Factors affecting viscosity changes in corn  

E-Print Network (OSTI)

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 (CMC) and effect of heating rate, holding temperature and CMC. Differences were found to exist between meals from different crop years which were not attributable to particle size. When tested at 13, 15 and 17% solids, new meal consistently developed viscosity earliest. Aged meal consistently developed the least amount of viscosity. At 17% solids, a distinct peak was formed by new meal. When heated at various heating rate (2, 7 and 14'C/min), the slowest heating rate developed a distinct peak. New meal consistently developed viscosity earliest. Aged meal developed the least amount of viscosity. As particle size decreased, viscosity increased. The addition of various amounts of CMC showed significant differences in viscosity at 95'C. CMC changed the order of highest viscosity and masked differences in peak time. When testing heating rate, holding time and addition of CMC, 95'C was found to develop viscosity to a greater degree than 70'C. Holding temperature did not have a significant effect and CMC masked differences between samples and produced unusual curves. Whole and decorticated corns were stored for various lengths of time at 60, 50, 22 and 6'C. Density decreased over time when stored at elevated temperatures. Hardness values increased, indicating a softer grain. However, this is more likely an indicator of brittleness. Decorticated grains developed higher viscosity. Pericarp acts as a diluent. Peak temperature increased with storage at elevated temperature. Density, hardness, peak viscosity and peak temperature were found to be the most significant indicators measured.

McGill, Kendra Louise

1995-01-01T23:59:59.000Z

68

The viscosity plate thrust bearing  

SciTech Connect

The results of tests on a viscosity plate thrust bearing indicated that serious differences existed between theoretical predictions by existing methods and experimental values. In particular the load carrying capacity at any speed and plate gap was much overestimated by calculation, and the variation of load with speed, at constant gap, appeared to be quite different in theory and experiment. While the theoretical load speed curve departed by only a small amount from linearity, the experimental curves indicated a definite flattening out at high speed, and corresponding to a given gap, a maximum load was reached and maintained independent of speed. It is the aim of this investigation to find the reason for this flattening out of the curve, and to indicate why it is not shown by the theoretical methods. The aerodynamic theory of viscosity plate bearings is considered, and taking into account as many aerodynamic effects as possible, a new method of performance prediction is developed. Results by this method agree quite well with those of existing methods, and therefore the effect which is being looked for cannot be an aerodynamic one already included in the method. Other possible explanations are considered including centrifugal action on the gas, heating up the gas due to frictional losses, a comparison of the plate gap with the mean free path of molecules of the gas, and distortion of the grooved plate under pressure load. Of these it is shown that the first three are not important, but that with the type of plate mounting used in the experiments very serious deflections of the stationary plate can be expected at high speed. At 21,000 rpm and a plate gap of 2.0 x 10/sup -4/ in. and with the theoretically predicted load, the plate deflection reaches a maximum of about five times the nominal gap and moreover varies considerably with radius and around the disc. Because of these distortions the theoretical methods discussed are not applicable to the experimental conditions and the calculated and measured results cannot be compared. It will be seen that constant plate clearance is not involved in the theories in a simple manner and a method which took into account both aerodynamic and elastic effects would be most complex. Although it has not been demonstrated that these additional elastic effects would lead to the flattening out of the calculated curves, it seems most likey that they are responsible for the discrepancies between the theoretical and experimental results. This could be most easily shown by tests on a similar bearing with the grooved plate considerably thicker to increase its stiffness. (auth)

Wordsworth, D.V.

1958-07-01T23:59:59.000Z

69

Double-diffusive convection with variable viscosity from a vertical truncated cone in porous media in the presence of magnetic field and radiation effects  

Science Conference Proceedings (OSTI)

This work is focused on the study of combined heat and mass transfer or double-diffusive convection near a vertical truncated cone embedded in a fluid-saturated porous medium in the presence of thermal radiation, magnetic field and variable viscosity ... Keywords: Double diffusion, Magnetic field, Porous media, Radiation, Truncated cone, Variable viscosity

A. Mahdy; A. J. Chamkha; Yousef Baba

2010-06-01T23:59:59.000Z

70

RMOTC to Test Oil Viscosity Reduction Technology  

NLE Websites -- All DOE Office Websites (Extended Search)

to Test Oil Viscosity Reduction Technology to Test Oil Viscosity Reduction Technology The Rocky Mountain Oilfield Testing Center (RMOTC) announces that the "Teapot Dome" oil field in Wyoming is hosting a series of tests funded by STWA, Inc. ("STWA") to determine the performance of its Applied Oil Technology (AOT(tm)) in reducing crude oil's viscosity to lower transportation costs for pipeline operators. The testing is managed by RMOTC, and conducted at Naval Petroleum Reserve No. 3, also known as the Teapot Dome oil field. RMOTC is providing the infrastructure and technical expertise to support companies such as STWA in their efforts to validate new technologies and bring those products and

71

The Bulk Viscosity of a Pion Gas  

E-Print Network (OSTI)

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.

Egang Lu; Guy D. Moore

2011-01-31T23:59:59.000Z

72

Shear viscosity in the postquasistatic approximation  

Science Conference Proceedings (OSTI)

We apply the postquasistatic approximation, an iterative method for the evolution of self-gravitating spheres of matter, to study the evolution of anisotropic nonadiabatic radiating and dissipative distributions in general relativity. Dissipation is described by viscosity and free-streaming radiation, assuming an equation of state to model anisotropy induced by the shear viscosity. We match the interior solution, in noncomoving coordinates, with the Vaidya exterior solution. Two simple models are presented, based on the Schwarzschild and Tolman VI solutions, in the nonadiabatic and adiabatic limit. In both cases, the eventual collapse or expansion of the distribution is mainly controlled by the anisotropy induced by the viscosity.

Peralta, C.; Rosales, L.; Rodriguez-Mueller, B.; Barreto, W. [Deutscher Wetterdienst, Frankfurter Str. 135, 63067 Offenbach (Germany); Laboratorio de Fisica Computacional, Universidad Experimental Politecnica 'Antonio Jose de Sucre', Puerto Ordaz (Venezuela, Bolivarian Republic of); Computational Science Research Center, College of Sciences, San Diego State University, San Diego, California (United States); Centro de Fisica Fundamental, Facultad de Ciencias, Universidad de Los Andes, Merida (Venezuela, Bolivarian Republic of)

2010-05-15T23:59:59.000Z

73

Bulk viscosity of N=2* plasma  

E-Print Network (OSTI)

We use gauge theory/string theory correspondence to study the bulk viscosity of strongly coupled, mass deformed SU(N_c) N=4 supersymmetric Yang-Mills plasma, also known as N=2^* gauge theory. For a wide range of masses we confirm the bulk viscosity bound proposed in arXiv:0708.3459. For a certain choice of masses, the theory undergoes a phase transition with divergent specific heat c_V ~ |1-T_c/T|^(-1/2). We show that, although bulk viscosity rapidly grows as T -> T_c, it remains finite in the vicinity of the critical point.

Alex Buchel; Chris Pagnutti

2008-12-18T23:59:59.000Z

74

Radioluminescent emergency egress lighting for US Navy surface ships  

SciTech Connect

This very limited study examines only one of a number of shipboard applications to which (RL) might be applied. A detailed analysis is needed to fully explore the potential for use of state-of-the-art RL systems in the Navy. A more comprehensive study is highly recommended. It was also not possible to assess the implications of emerging RL technologies such as solid matrix light development and advanced gas techniques; it is strongly recommended that continued research level efforts do this. Nonetheless, for the emergency egress application, enough conclusive evidence was developed and critical questions answered to indicate that the RL option using current technology can economically improve emergency egress and crew safety significantly on Navy ships. 18 refs., 9 figs., 7 tabs.

Adrian, D.K.; Pusey, H.C.; Jensen, G.A.; Traub, R.J.

1988-12-01T23:59:59.000Z

75

NETL: News Release - SECA Fuel Cell Proves Successful in Navy's  

NLE Websites -- All DOE Office Websites (Extended Search)

5, 2008 5, 2008 SECA Fuel Cell Proves Successful in Navy's Proof-of-Concept Testing Spinoff Applications Mark the Road to Widespread Commercialization Washington, D. C. - Two technologies developed under the U.S. Department of Energy's Solid State Energy Conversion Alliance (SECA) fuel cell program recently passed successful proof-of-concept tests by the U.S. Navy's Naval Undersea Warfare Center Division located in Newport, Rhode Island. The tests mark a breakthrough for solid oxide fuel cell (SOFC)-based power systems and reflect the potential of SOFC technology for other spinoff market applications as well. The proof-of-concept tests incorporated two technologies developed under the SECA program: SOFC stacks manufactured by Delphi Corporation of Flint, Mich., and a specialized blower developed for SECA SOFC systems by R&D Dynamics, Bloomfield, Conn., under DOE's Small Business Innovation Research program. The blower was used successfully in the test to recycle high-temperature fuel exhaust flows back to the fuel reformer. The proof-of-concept system met the U.S. Navy's targets for system size, power output, and efficiency.

76

Measurement of DWPF glass viscosity - Final Report  

SciTech Connect

This report details the results of a scoping study funded by the Defense Waste Processing Facility (DWPF) for the measurement of melt viscosities for simulated glasses representative of Macrobatch 2 (Tank 42/51 feed).

Harbour, J.R.

2000-02-17T23:59:59.000Z

77

High-Temperature Viscosity of Commercial Glasses  

SciTech Connect

Arrhenius models were developed for glass viscosity within the processing temperature of six types of commercial glasses: low-expansion-borosilicate glasses, E glasses, fiberglass wool glasses, TV panel glasses, container glasses, and float glasses. Both local models (for each of the six glass types) and a global model (for the composition region of commercial glasses, i.e., the six glass types taken together) are presented. The models are based on viscosity data previously 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. First-order models were applied to relate Arrhenius coefficients to the mass fractions of 15 components: SiO2, TiO2, ZrO2, Al2O3, Fe2O3, B2O3, MgO, CaO, SrO, BaO, PbO, ZnO, Li2O, Na2O, K2O. The R2 is 0.98 for the global model and ranges from .097 to 0.99 for the six local models. 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 5 to 400 Pa?s.

Hrma, Pavel R.

2006-08-31T23:59:59.000Z

78

The fireship and its role in the Royal Navy  

E-Print Network (OSTI)

Fireships are vessels intentionally set on fire and launched against an enemy ship in order to bum it. At their prime in the age of cannon-armed sailing warships, they were potentially the most powerful weapon in the hands of the English Admiralty 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. Incendiary vessels were not the most important vessels in the fleet, but they did have an important role to play. Modem fireships probably emerged in the Royal Navy during the 1630s; the first recorded example is Andrew and John, which sailed for the Earl of Warwick in 1643 during the English Civil War. Fireships grew in prominence quickly, and by the Anglo-Dutch wars, were common elements in all major European fleets. They would ebb and flow in importance for the next 150 years until Thais, the last English fireship to sail with the Royal Navy, was converted to a ship sloop in 1808. The story of fireships can be seen in an examination of how they were built, manned, used in times of war and peace, and what contemporaries thought of them. There are numerous contemporary records which discuss fireships including logs and journals of those who served in the Royal Navy, line drawings, ship models, and other written sources. This thesis will discuss both the specific elements and a general history of modem fireships. Specific aspects consist of fireship construction and design, especially the method of placing incendiaries within the ship, and unique elements, which include devices to spread flames throughout the vessel as quickly as possible. The general history will discuss the size, history, and commanders of each of the over 300 fireships which sailed in the Royal Navy as well as an equivalent for the careers of the over 700 captains who sailed them.

Coggeshall, James Lowell

1997-01-01T23:59:59.000Z

79

U.S. Navy Launches First Nuclear Sub | National Nuclear Security  

NLE Websites -- All DOE Office Websites (Extended Search)

Navy Launches First Nuclear Sub | National Nuclear Security Navy Launches First Nuclear Sub | National Nuclear Security Administration Our Mission Managing the Stockpile Preventing Proliferation Powering the Nuclear Navy Emergency Response Recapitalizing Our Infrastructure Continuing Management Reform Countering Nuclear Terrorism About Us Our Programs Our History Who We Are Our Leadership Our Locations Budget Our Operations Media Room Congressional Testimony Fact Sheets Newsletters Press Releases Speeches Events Social Media Video Gallery Photo Gallery NNSA Archive Federal Employment Apply for Our Jobs Our Jobs Working at NNSA Blog Home > About Us > Our History > NNSA Timeline > U.S. Navy Launches First Nuclear Sub U.S. Navy Launches First Nuclear Sub January 21, 1954 Thames River (Groton, Conn.) U.S. Navy Launches First Nuclear Sub

80

ARPA-E 2011 Keynote: Ray Mabus, Secretary of the Navy | Department of  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Ray Mabus, Secretary of the Navy Ray Mabus, Secretary of the Navy ARPA-E 2011 Keynote: Ray Mabus, Secretary of the Navy Addthis Description 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. Speakers Ray Mabus, Secretary of the Navy Duration 28:24 Topic Energy Policy Fuel Economy Energy Sources Emerging Technologies Credit Energy Department Video SECRETARY RAY MABUS: One of the things that has always amazed and gratified me is the talent of people who are willing to serve in government, willing to take less money, more trouble on behalf of their country. Every time we seem to need somebody, somebody good - you hope - steps forward. We have a great secretary of defense right now in Bob Gates, but we sure

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


81

February 20, 2008: Navy shoots down NASA satellite | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

0, 2008: Navy shoots down NASA satellite 0, 2008: Navy shoots down NASA satellite February 20, 2008: Navy shoots down NASA satellite February 20, 2008: Navy shoots down NASA satellite February 20, 2008 The Navy successfully shoots down with a missile an errant satellite 133 miles above the earth. DOE's National Nuclear Security Administration (NNSA) assists the Navy using its Red Storm supercomputer, located at its Sandia National Laboratories. For about two months, NNSA diverted Red Storm and its technical experts and codes to the secret project to simulate, assess, and plan the complex mission. All 26,569 processors were used on Red Storm to perform complex simulations that allowed NNSA's technical experts to predict various details and possibilities. The work helped answer many questions, such as at what altitude to hit the satellite, how

82

U.S. Navy ships food service divisions: moderning inventory management .  

E-Print Network (OSTI)

??The Navy's current inventory management procedures for receipt, inventory, stowage, and issue of provisions onboard ships have remained relatively unchanged for decades. Culinary Specialists are (more)

James, Robert J.

2010-01-01T23:59:59.000Z

83

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

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

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

84

Apparatus and method for measuring viscosity  

SciTech Connect

The present invention is directed to an apparatus and method for measuring the viscosity of a fluid. This apparatus and method is particularly useful for the measurement of the viscosity of a liquid in a harsh environment characterized by high temperature and the presence of corrosive or deleterious gases and vapors which adversely affect conventional ball or roller bearings. The apparatus and method of the present invention employ one or more flexural or torsional bearings to suspend a bob capable of limited angular motion within a rotatable sleeve suspended from a stationary frame.

Murphy, Jr., Robert J. (Bellaire, TX)

1986-01-01T23:59:59.000Z

85

Oil displacement through a porous medium with a temperature gradient  

E-Print Network (OSTI)

We investigate the effect of a temperature gradient on oil recovery in a two-dimensional pore-network model. The oil viscosity depends on temperature as, $\\mu_o=exp(B/T)$, where $B$ is a physico-chemical parameter depending on the type of oil, and $T$ is the temperature. A temperature gradient is applied across the medium in the flow direction. Initially, the porous medium is saturated with oil and, then, another fluid is injected. We have considered two cases representing different injection strategies. In the first case, the invading fluid viscosity is constant (finite viscosity ratio) while in the second one, the invading fluid is inviscid (infinite viscosity ratio). Our results show that, for the case of finite viscosity ratio, recovery increases with $\\Delta T$ independently on strength or sign of the gradient. For an infinite viscosity ratio, a positive temperature gradient is necessary to enhance recovery. Moreover, we show that, for $\\Delta T>0$, the percentage of oil recovery generally decreases (inc...

Oliveira, C L N; Herrmann, H J

2011-01-01T23:59:59.000Z

86

An Assessment of the First- and Second-Generation Navy Operational Precipitation Retrieval Algorithms  

Science Conference Proceedings (OSTI)

Rainfall estimates produced from the Special Sensor Microwave/Imager (SSM/I) data have been utilized operationally by the United States Navy since the launch of the first SSM/I sensor in June of 1987. The navy initially contracted Hughes Aircraft ...

Wesley Berg; William Olson; Ralph Ferraro; Steven J. Goodman; Frank J. LaFontaine

1998-05-01T23:59:59.000Z

87

NREL: News Feature - NREL Teams with Navy to Cut Energy Use  

NLE Websites -- All DOE Office Websites (Extended Search)

NREL Teams with Navy to Cut Energy Use NREL Teams with Navy to Cut Energy Use April 19, 2013 Photo of the USS O'Kane (DDG 77) returning to U.S. Joint Base Pearl Harbor-Hickam. Enlarge image Guided-missile destroyer USS O'Kane returns to Joint Base Pearl Harbor-Hickam after a seven-month deployment. The Navy and NREL have teamed up to find solutions to meet the Navy's ambitious energy goals, including working with the Naval Facilities Engineering Command in Hawaii and Guam to install and test advanced building efficiency, HVAC (heating, ventilation, and air conditioning), and renewables and facility integration technologies. Credit: Photo by U.S. Navy Mass Communication Specialist Seaman Diana Quinlan Check off a list in your head of the government organizations that play a role in the security of the United States. The Department of Defense (DoD)

88

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

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Navy Veteran Back to Work on the Smart Grid Navy Veteran Back to Work on the Smart Grid Navy Veteran Back to Work on the Smart Grid September 9, 2011 - 2:38pm Addthis Navy Veteran Gary Watts is a recent graduate of Power4Vets, a project funded through the Office of Electricity and Energy Reliability's Smart Grid Workforce Development Program to put veterans back to work in civilian energy jobs. | Photo courtesy of Power4Vets Navy Veteran Gary Watts is a recent graduate of Power4Vets, a project funded through the Office of Electricity and Energy Reliability's Smart Grid Workforce Development Program to put veterans back to work in civilian energy jobs. | Photo courtesy of Power4Vets April Saylor April Saylor Former Digital Outreach Strategist, Office of Public Affairs "Even though I had skills all along that people wanted, I didn't know

89

11 Navy sites to save $871,000 yearly | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

1 Navy sites to save $871,000 yearly 1 Navy sites to save $871,000 yearly 11 Navy sites to save $871,000 yearly July 13, 2010 - 6:12pm Addthis Joshua DeLung What does this project do? The solar energy systems are expected to generate 9,399 MWh of clean, renewable energy during first full year after construction. The solar and roofing upgrades that will save the Navy $871,935 annually. The process will involve hundreds workers across the projects. 32 buildings in Florida, Mississippi and Texas to receive energy upgrades Up to 275 subcontractors to work on roofing and solar projects 9,399 MWh of energy expected to be generated in first full year after construction The U.S. Navy's Naval Facilities Engineering Command (NAVFAC) Southeast - based in Jacksonville, Fla. - is using $69.3 million in funding from the

90

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

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Navy Veteran Back to Work on the Smart Grid Navy Veteran Back to Work on the Smart Grid Navy Veteran Back to Work on the Smart Grid September 9, 2011 - 2:38pm Addthis Navy Veteran Gary Watts is a recent graduate of Power4Vets, a project funded through the Office of Electricity and Energy Reliability's Smart Grid Workforce Development Program to put veterans back to work in civilian energy jobs. | Photo courtesy of Power4Vets Navy Veteran Gary Watts is a recent graduate of Power4Vets, a project funded through the Office of Electricity and Energy Reliability's Smart Grid Workforce Development Program to put veterans back to work in civilian energy jobs. | Photo courtesy of Power4Vets April Saylor April Saylor Former Digital Outreach Strategist, Office of Public Affairs "Even though I had skills all along that people wanted, I didn't know

91

PNNL Helps the Navy Stay Cool and Conserve Fuel | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

PNNL Helps the Navy Stay Cool and Conserve Fuel PNNL Helps the Navy Stay Cool and Conserve Fuel PNNL Helps the Navy Stay Cool and Conserve Fuel July 30, 2013 - 3:33pm Addthis As a Laboratory Fellow at the Energy Department's Pacific Northwest National Laboratory, Pete McGrail and his team are working to develop a more efficient adsorption chiller that could help the Navy cut its fuel costs. | Photo courtesy of Pacific Northwest National Laboratory. As a Laboratory Fellow at the Energy Department's Pacific Northwest National Laboratory, Pete McGrail and his team are working to develop a more efficient adsorption chiller that could help the Navy cut its fuel costs. | Photo courtesy of Pacific Northwest National Laboratory. Andrew Gumbiner Contractor, Advanced Research Projects Agency-Energy. What are the key facts?

92

Bottom Ekman Pumping with Stress-Dependent Eddy Viscosity  

Science Conference Proceedings (OSTI)

This paper reconsiders the classic problem of bottom Ekman pumping below a steady geostrophic flow by relaxing the assumption of a constant eddy viscosity. It is assumed instead that the eddy viscosity depends on the magnitude of the bottom ...

Benoit Cushman-Roisin; Vlado Mala?i?

1997-09-01T23:59:59.000Z

93

Joint NOAA, Navy, NASA Hurricane Test Bed Terms of Reference  

E-Print Network (OSTI)

(JHT) to advance the transfer of new research and technology into operational hurricane prediction. The JHT will routinely serve as a conduit between the operational, academic, and research communities. This facility will be located at the National Hurricane Center (NHC) in Miami, FL. Whereas the operational center and associated personnel could be the NHC, the Joint Typhoon Warning Center (JTWC, Navy), or the Central Pacific Hurricane Center (CPHC), and NHC will be specified in this document, both for brevity and to acknowledge the current focus of the JHT on that organization. Use of other facilities is possible depending on requirements, workload, and opportunity. II. Mission Statement The mission of the Joint (NOAA, Navy, and NASA) Hurricane Test Bed is to transfer more rapidly and smoothly new technology, research results, and observational advances of the USWRP, its sponsoring agencies, the academic community and other groups into improved tropical cyclone analysis and prediction at operational centers. III. Concept of Operations The JHT is the initial test bed activity funded by the USWRP and is established to accelerate the technology infusion focused on hurricane analysis and prediction. Until all test beds are organized under a national test bed activity, the USWRP Interagency Program Office (IPO) provides coordination and oversight. The USWRP/IPO will facilitate outreach, the proposal process, and interaction with the oversight board, funding, and other tasks common to the test beds. The JHT will work with the USWRP/IPO to accomplish those tasks appropriate for administration of the hurricane test bed. The JHT mission will be accomplished by the following: assessing scientific breakthroughs and new techniques to identify advanced, realtime, data-analysis techniques, forecast models, and observational systems that have potential for significantly improving the forecast guidance provided to hurricane forecasters; completing tests of the codes, products, and observations in a quasi-operational information technology (IT) environment subject to metrics that mandate good scientific performance while meeting ease-of use criteria and time constraints;

unknown authors

2012-01-01T23:59:59.000Z

94

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

SciTech Connect

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.

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

1995-01-01T23:59:59.000Z

95

The Role of Viscosity in TATB Hot Spot Ignition  

SciTech Connect

The role of dissipative effects, such as viscosity, in the ignition of high explosive pores is investigated using a coupled chemical, thermal, and hydrodynamic model. Chemical reactions are tracked with the Cheetah thermochemical code coupled to the ALE3D hydrodynamic code. We perform molecular dynamics simulations to determine the viscosity of liquid TATB. We also analyze shock wave experiments to obtain an estimate for the shock viscosity of TATB. Using the lower bound liquid-like viscosities, we find that the pore collapse is hydrodynamic in nature. Using the upper bound viscosity from shock wave experiments, we find that the pore collapse is closest to the viscous limit.

Fried, L E; Zepeda-Ruis, L; Howard, W M; Najjar, F; Reaugh, J E

2011-08-02T23:59:59.000Z

96

NREL: Buildings Research - NREL Helps the Navy with Renewable Energy Site  

NLE Websites -- All DOE Office Websites (Extended Search)

NREL Helps the Navy with Renewable Energy Site Assessment at Indian Ocean NREL Helps the Navy with Renewable Energy Site Assessment at Indian Ocean Base December 20, 2013 Reaching Diego Garcia, a remote island in the middle of the Indian Ocean, is not easy, but recently NREL's Otto VanGeet and Owen Roberts embarked on the long journey there. As part of an integrated Navy and NREL team, their goal was to help the Navy reduce costs by integrating wind and solar power with fossil fuel generators. NREL staff, along with members of the Naval Facilities Engineering Command, conducted a net-zero renewable energy site assessment in November at the atoll which stretches about 40 miles in a thin U-shape. The island's renewable energy potential-along with the possibilities for energy systems integration-really excited the team. "Because of its locale, the base is all diesel-powered," VanGeet said.

97

The Description of the Navy Operational Global Atmospheric Prediction System's Spectral Forecast Model  

Science Conference Proceedings (OSTI)

We present a description of the development of the spectral forecast components of the Navy Operational Global Atmospheric Prediction System (NOGAPS). The original system, called 3.0, was introduced in January 1988. New versions were introduced ...

Timothy F. Hogan; Thomas E. Rosmond

1991-08-01T23:59:59.000Z

98

Sea Surface Height Predictions from the Global Navy Coastal Ocean Model during 19982001  

Science Conference Proceedings (OSTI)

A ? global version of the Navy Coastal Ocean Model (NCOM), operational at the Naval Oceanographic Office (NAVOCEANO), is used for prediction of sea surface height (SSH) on daily and monthly time scales during 19982001. Model simulations that ...

Charlie N. Barron; A. Birol Kara; Harley E. Hurlburt; C. Rowley; Lucy F. Smedstad

2004-12-01T23:59:59.000Z

99

USDA, Departments of Energy and Navy Seek Input from Industry to Advance  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

USDA, Departments of Energy and Navy Seek Input from Industry to USDA, Departments of Energy and Navy Seek Input from Industry to Advance Biofuels for Military and Commercial Transportation USDA, Departments of Energy and Navy Seek Input from Industry to Advance Biofuels for Military and Commercial Transportation August 30, 2011 - 12:23pm Addthis WASHINGTON, Aug. 30, 2011 -Secretary of Agriculture Tom Vilsack, Secretary of Energy Steven Chu, and Secretary of the Navy Ray Mabus today announced the next step in the creation of a public-private partnership to develop drop-in advanced biofuels. The Secretaries issued a Request for Information (RFI) laying out the Administration's goals, assumptions, and tools and requesting from industry specific ideas for how to leverage private capital markets to establish a commercially viable drop-in biofuels

100

U.S. Navy - San Clemente Island, California | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

San Clemente Island, California San Clemente Island, California U.S. Navy - San Clemente Island, California October 7, 2013 - 10:12am Addthis Photo of Wind Turbine on San Clemente Island, California San Clemente Island is one of the Channel Islands off the southern coast of California. The U.S. Navy owns the 21-mile long island, making it one of the Navy's largest real estate assets. The Navy uses the island for research, development, testing, evaluation, and training. Originally, the electrical needs of the island were provided by four diesel generators. In 1998 two wind turbines were installed through a joint project of the Department of Defense, the Department of Energy, and the Environmental Protection Agency working through the Federal Energy Management Program (FEMP). A third turbine was installed in 1999, allowing

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


101

NREL: Department of Defense Energy Programs - NREL Helps the Navy with  

NLE Websites -- All DOE Office Websites (Extended Search)

NREL Helps the Navy with Renewable Energy Site Assessment at Indian Ocean NREL Helps the Navy with Renewable Energy Site Assessment at Indian Ocean Base December 20, 2013 Reaching Diego Garcia, a remote island in the middle of the Indian Ocean, is not easy, but recently NREL's Otto VanGeet and Owen Roberts embarked on the long journey there. As part of an integrated Navy and NREL team, their goal was to help the Navy reduce costs by integrating wind and solar power with fossil fuel generators. NREL staff, along with members of the Naval Facilities Engineering Command, conducted a net-zero renewable energy site assessment in November at the atoll which stretches about 40 miles in a thin U-shape. The island's renewable energy potential-along with the possibilities for energy systems integration-really excited the team. "Because of its locale, the base is all diesel-powered," VanGeet said.

102

Fossil Energy-Developed Fuel Cell Technology Being Adapted by Navy for  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Energy-Developed Fuel Cell Technology Being Adapted by Navy Energy-Developed Fuel Cell Technology Being Adapted by Navy for Advanced Unmanned Undersea Vehicles Fossil Energy-Developed Fuel Cell Technology Being Adapted by Navy for Advanced Unmanned Undersea Vehicles January 31, 2013 - 12:00pm Addthis An unmanned undersea vehicle (UUV) being deployed during a U.S. Office of Naval Research demonstration near Panama City. Solid oxide fuel cell technology being developed by the Office of Fossil Energy for coal-fueled central power generation is being adapted to power UUVs. U.S. Navy photo by Mr. John F. Williams/Released. An unmanned undersea vehicle (UUV) being deployed during a U.S. Office of Naval Research demonstration near Panama City. Solid oxide fuel cell technology being developed by the Office of Fossil Energy for coal-fueled

103

DOE - Office of Legacy Management -- Mare Island Navy Yard - CA 0-01  

Office of Legacy Management (LM)

Mare Island Navy Yard - CA 0-01 Mare Island Navy Yard - CA 0-01 FUSRAP Considered Sites Site: MARE ISLAND NAVY YARD (CA.0-01 ) Eliminated from consideration under FUSRAP - Referred to DoD Designated Name: Not Designated Alternate Name: None Location: Mare Island , California CA.0-01-2 Evaluation Year: 1989 CA.0-01-1 Site Operations: Naval yard and shipping station. CA.0-01-2 Site Disposition: Eliminated - Referred to DOD CA.0-01-1 CA.0-01-2 Radioactive Materials Handled: None Indicated Primary Radioactive Materials Handled: None CA.0-01-2 Radiological Survey(s): None Indicated Site Status: Eliminated from consideration under FUSRAP - Referred to DoD CA.0-01-2 Also see Documents Related to MARE ISLAND NAVY YARD CA.0-01-1 - DOE Memorandum; Wallo to Carwell; Subject: List of

104

Federal Energy Management Program: U.S. Navy - San Clemente Island...  

NLE Websites -- All DOE Office Websites (Extended Search)

- San Clemente Island, California to someone by E-mail Share Federal Energy Management Program: U.S. Navy - San Clemente Island, California on Facebook Tweet about Federal Energy...

105

Assimilation of Synthetic Tropical Cyclone Observations into the Navy Operational Global Atmospheric Prediction System  

Science Conference Proceedings (OSTI)

In June 1990, the assimilation of synthetic tropical cyclone observations into the Navy Operational Global Atmospheric Prediction System (NOGAPS) was initiated at Fleet Numerical Oceanography Center (FNOC). These observations are derived directly ...

James S. Goerss; Richard A. Jeffries

1994-12-01T23:59:59.000Z

106

Application of Hypermedia and Expert System Technology to Navy Environmental Satellite Image Analysis  

Science Conference Proceedings (OSTI)

The Naval Research Laboratory Marine Meteorology Division, over a period of more than 15 years, has developed a series of satellite imagery training documents called the Navy Tactical Applications Guides (NTAGs). The NTAG materials are unique ...

Robert W. Fett; Marie E. White; James E. Peak; Sam Brand; Paul M. Tag

1997-09-01T23:59:59.000Z

107

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

E-Print Network (OSTI)

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 ...

Hawks, Matthew Arthur

2006-01-01T23:59:59.000Z

108

Applying Weather Analyses and Forecasts in the Navy Decision-making Process  

Science Conference Proceedings (OSTI)

The meteorologist in the navy is rarely the decision maker. The meteorological information that is produced by model output or remotely sensed data has to be presented in a more tactically relevant form before being applied by military decision ...

Samson Brand

1992-01-01T23:59:59.000Z

109

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

E-Print Network (OSTI)

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. ...

Greene, William C. (William Calvin)

2005-01-01T23:59:59.000Z

110

Shear Viscosity in a CFL Quark Star  

E-Print Network (OSTI)

We compute the mean free path and shear viscosity in the color-flavor locked (CFL) phase of dense quark matter at low temperature T, when the contributions of mesons, quarks and gluons to the transport coefficients are Boltzmann suppressed. CFL quark matter displays superfluid properties, and transport phenomena in such cold regime are dominated by phonon-phonon scattering. We study superfluid phonons within thermal field theory and compute the mean free path associated to their most relevant collision processes. Small-angle processes turn out to be more efficient in slowing transport phenomena in the CFL matter, while the mean free path relevant for the shear viscosity is less sensitive to collinear scattering due to the presence of zero modes in the Boltzmann equation. In analogy with superfluid He4, we find the same T power law for the superfluid phonon damping rate and mean free path. Our results are relevant for the study of rotational properties of compact stars, and correct wrong estimates existing in the literature.

Cristina Manuel; Antonio Dobado; Felipe J. Llanes-Estrada

2004-06-04T23:59:59.000Z

111

Shear Viscosity Coefficient from Microscopic Models  

E-Print Network (OSTI)

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.

Azwinndini Muronga

2003-09-22T23:59:59.000Z

112

Non-invasive fluid density and viscosity measurement  

SciTech Connect

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.

Sinha, Dipen N. (Los Alamos, NM)

2012-05-01T23:59:59.000Z

113

Excess volumes and excess viscosities of binary mixtures of 1 ...  

Science Conference Proceedings (OSTI)

Excess volumes V E, excess viscosities 1/E, and excess free energies of activation ... KEY WORDS: activation energy; binary mixtures; free energy; l-

114

Study on Aluminum Foam with Fly Ash Increase Viscosity  

Science Conference Proceedings (OSTI)

May 1, 2007 ... Study on Aluminum Foam with Fly Ash Increase Viscosity by Yong Wang, Guang- chun Yao, and Bing Li. Publisher: TMS. Product Format: PDF.

115

Effect of Silicon on the Viscosity and Solidification Properties of ...  

Science Conference Proceedings (OSTI)

The viscosity of molten irons with same titanium of 0.2 weight percent but .... Reductive Sulfur-fixation Smelting of Stibnite Concentrate in Sodium Molten Salt.

116

Hydrothermal oxidation of Navy shipboard excess hazardous materials  

SciTech Connect

This study demonstrated effective destruction, using a novel supercritical water oxidation reactor, of oil, jet fuel, and hydraulic fluid, common excess hazardous materials found on-board Navy vessels. This reactor uses an advanced injector design to mix the hazardous compounds with water, oxidizer, and a supplementary fuel and it uses a transpiring wall to protect the surface of the reactor from corrosion and salt deposition. Our program was divided into four parts. First, basic chemical kinetic data were generated in a simple, tubular-configured reactor for short reaction times (<1 second) and long reaction times (>5 seconds) as a function of temperature. Second, using the data, an engineering model was developed for the more complicated industrial reactor mentioned above. Third, the three hazardous materials were destroyed in a quarter-scale version of the industrial reactor. Finally, the test data were compared with the model. The model and the experimental results for the quarter-scale reactor are described and compared in this report. A companion report discusses the first part of the program to generate basic chemical kinetic data. The injector and reactor worked as expected. The oxidation reaction with the supplementary fuel was initiated between 400 {degrees}C and 450 {degrees}C. The released energy raised the reactor temperature to greater than 600 {degrees}C. At that temperature, the hazardous materials were efficiently destroyed in less than five seconds. The model shows good agreement with the test data and has proven to be a useful tool in designing the system and understanding the test results. 16 refs., 17 figs., 11 tabs.

LaJeunesse, C.A.; Haroldsen, B.L.; Rice, S.F.; Brown, B.G.

1997-03-01T23:59:59.000Z

117

Hydrothermal oxidation of Navy shipboard excess hazardous materials  

Science Conference Proceedings (OSTI)

This study demonstrated effective destruction, using a novel supercritical water oxidation reactor, of oil, jet fuel, and hydraulic fluid, common excess hazardous materials found on-board Navy vessels. This reactor uses an advanced injector design to mix the hazardous compounds with water, oxidizer, and a supplementary fuel and it uses a transpiring wall to protect the surface of the reactor from corrosion and salt deposition. Our program was divided into four parts. First, basic chemical kinetic data were generated in a simple, tubular-configured reactor for short reaction times (5 seconds) as a function of temperature. Second, using the data, an engineering model was developed for the more complicated industrial reactor mentioned above. Third, the three hazardous materials were destroyed in a quarter-scale version of the industrial reactor. Finally, the test data were compared with the model. The model and the experimental results for the quarter-scale reactor are described and compared in this report. A companion report discusses the first part of the program to generate basic chemical kinetic data. The injector and reactor worked as expected. The oxidation reaction with the supplementary fuel was initiated between 400 {degrees}C and 450 {degrees}C. The released energy raised the reactor temperature to greater than 600 {degrees}C. At that temperature, the hazardous materials were efficiently destroyed in less than five seconds. The model shows good agreement with the test data and has proven to be a useful tool in designing the system and understanding the test results. 16 refs., 17 figs., 11 tabs.

LaJeunesse, C.A.; Haroldsen, B.L.; Rice, S.F.; Brown, B.G.

1997-03-01T23:59:59.000Z

118

Viscosity of concentrated suspensions of sphere/rod mixtures  

SciTech Connect

This paper discusses the viscosity of concentrated suspensions of sphere/rod mixtures by adopting the Thomas relations for spheres and Milliken`s for randomly oriented rods with aspect ratio of 20. The relative viscosity of a mixed suspension may now be calculated for any combination of rods (of aspect ratio 20) and spheres.

Mor, R.; Gottlieb, M. [Ben-Gurion Univ. of the Negev, Beersheba (Israel). Dept. of Chemical Engineering; Graham, A.L. [Los Alamos National Lab., NM (United States); Mondy, L.A.

1996-05-01T23:59:59.000Z

119

Fueling the Navy's Great Green Fleet with Advanced Biofuels | Department of  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Fueling the Navy's Great Green Fleet with Advanced Biofuels Fueling the Navy's Great Green Fleet with Advanced Biofuels Fueling the Navy's Great Green Fleet with Advanced Biofuels December 5, 2011 - 5:44pm Addthis Idaho National Laboratory describes R&D efforts to transform raw biomass into quality feedstocks for the production of renewable fuels, power and bioproducts. Aaron Crowell Senior Technical Research Analyst What does this project do? Develops and utilizes domestically produced biofuels to make our military and the nation more secure. 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

120

Carports with Solar Panels do Double Duty for Navy | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Carports with Solar Panels do Double Duty for Navy Carports with Solar Panels do Double Duty for Navy Carports with Solar Panels do Double Duty for Navy May 14, 2010 - 12:22pm Addthis Joshua DeLung What does this project do? In total, all of China Lake's solar PV projects generate enough electricity a year to power up to 1,200 houses on the grid provided by Southern California Edison, the local utility. The base estimates that it saves about $557,000 a year from the solar panels. At Naval Air Weapons Station China Lake, heat is a fact of life. The base is located on the edge of the Mojave Desert near Ridgecrest, Calif., where the blistering summer heat can actually peel the paint off cars. Longtime desert residents know how to deal with it, but thanks to an ongoing environmental program, many base employees no longer have to do so. Since

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


121

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

SciTech Connect

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.

Kintner-Meyer, Michael CW

2000-09-30T23:59:59.000Z

122

Causal Viscosity in Accretion Disc Boundary Layers  

E-Print Network (OSTI)

The structure of the boundary layer region between the disc and a comparatively slowly rotating star is studied using a causal prescription for viscosity. The vertically integrated viscous stress relaxes towards its equilibrium value on a relaxation timescale $\\tau$, which naturally yields a finite speed of propagation for viscous information. For a standard alpha prescription with alpha in the range 0.1-0.01, and ratio of viscous speed to sound speed in the range 0.02-0.5, details in the boundary layer are strongly affected by the causality constraint. We study both steady state polytropic models and time dependent models, taking into account energy dissipation and transport. Steady state solutions are always subviscous with a variety of $\\Omega$ profiles which may exhibit near discontinuities. For alpha =0.01 and small viscous speeds, the boundary layer adjusted to a near steady state. A long wavelength oscillation generated by viscous overstability could be seen at times near the outer boundary. Being confined there, the boundary layer remained almost stationary. However, for alpha =0.1 and large viscous speeds, short wavelength disturbances were seen throughout which could significantly affect the power output in the boundary layer. This could be potentially important in producing time dependent behaviour in accreting systems such as CVs and protostars.

W. Kley; J. C. B. Papaloizou

1997-01-14T23:59:59.000Z

123

Gas Viscosity at High Pressure and High Temperature  

E-Print Network (OSTI)

Gas viscosity is one of the gas properties that is vital to petroleum engineering. Its role in the oil and gas production and transportation is indicated by its contribution in the resistance to the flow of a fluid both in porous media and pipes. 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, very few investigations were performed on viscosity of naturally occurring gases, especially gas condensates at low-intermediate pressure and temperature, even fewer lab data were published. No gas viscosity data at high pressures and high temperatures (HPHT) is available. Therefore this gap in the oil industry still needs to be filled. Gas viscosity at HPHT becomes crucial to modern oil industry as exploration and production move to deep formation or deep water where HPHT is not uncommon. Therefore, any hydrocarbon encountered there is more gas than oil due to the chemical reaction causing oil to transfer to gas as temperature increases. We need gas viscosity to optimize production rate for production system, estimate reserves, model gas injection, design drilling fluid, and monitor gas movement in well control. Current gas viscosity correlations are derived using measured data at low-moderate pressures and temperatures, and then extrapolated to HPHT. No measured gas viscosities at HPHT are available so far. The validities of these correlations for gas viscosity at HPHT are doubted due to lack of experimental data. In this study, four types of viscometers are evaluated and their advantages and disadvantages are listed. The falling body viscometer is used to measure gas viscosity at a pressure range of 3000 to 25000 psi and a temperature range of 100 to 415 oF. Nitrogen viscosity is measured to take into account of the fact that the concentration of nonhydrocarbons increase drastically in HPHT reservoir. More nitrogen is found as we move to HPHT reservoirs. High concentration nitrogen in natural gas affects not only the heat value of natural gas, but also gas viscosity which is critical to petroleum engineering. Nitrogen is also one of common inject gases in gas injection projects, thus an accurate estimation of its viscosity is vital to analyze reservoir performance. Then methane viscosity is measured to honor that hydrocarbon in HPHT which is almost pure methane. From our experiments, we found that while the Lee-Gonzalez-Eakin correlation estimates gas viscosity at a low-moderate pressure and temperature accurately, it cannot give good match of gas viscosity at HPHT. Apparently, current correlations need to be modified to predict gas viscosity at HPHT. New correlations constructed for HPHT conditions based on our experiment data give more confidence on gas viscosity.

Ling, Kegang

2010-12-01T23:59:59.000Z

124

The Accuracy of Sea Ice Drafts Measured from U.S. Navy Submarines  

Science Conference Proceedings (OSTI)

Navy submarines in the Arctic Ocean routinely obtain observations from an upward-looking sonar of the draft of the sea ice cover overhead. Draft data are now publicly available from some 40 cruises from 1975 to 2000 covering over 120 000 km of ...

D. A. Rothrock; Mark Wensnahan

2007-11-01T23:59:59.000Z

125

Energy efficient windows for Navy housing. NFESC-TDS-2008-ENG  

SciTech Connect

To reduce energy losses in winter (and gains in summer) through windows in Navy housing, NFESC has examined energy efficient windows for their cost effectiveness, identified framing and glazing options, developed simple equations and procedures to determine the best option for each application, and prepared a User Data Package (UDP) for use by field personnel.

Garg, S.C.

1994-10-01T23:59:59.000Z

126

Viscosity and density tables of sodium chloride solutions  

DOE Green Energy (OSTI)

A file is presented containing tabulated data extracted from the scientific literature on the density and viscosity of aqueous sodium chloride solutions. Also included is a bibliography of the properties of aqueous sodium chloride solutions. (MHR)

Fair, J.A.; Ozbek, H. (comps.) [comps.

1977-04-01T23:59:59.000Z

127

Method for controlling the viscosity of siloxane oils  

DOE Patents (OSTI)

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.

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

1984-09-12T23:59:59.000Z

128

Spectral Viscosity for Shallow Water Equations in Spherical Geometry  

Science Conference Proceedings (OSTI)

A spherical spectral viscosity operator is proposed as an alternative to standard horizontal diffusion terms in global atmospheric models. Implementation in NCAR's Spectral Transform Shallow Water Model and application to a suite of standard test ...

Anne Gelb; James P. Gleeson

2001-09-01T23:59:59.000Z

129

Bulk viscosity in nuclear and quark matter: A short review  

E-Print Network (OSTI)

The history and recent progresses in the study of bulk viscosity in nuclear and quark matter are reviewed. The constraints from baryon number conservation and electric neutrality in quark matter on particle densities and fluid velocity divergences are discussed.

Hui Dong; Nan Su; Qun Wang

2007-02-07T23:59:59.000Z

130

Method for controlling the viscosity of siloxane oils  

DOE Patents (OSTI)

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.

Carey, A. Andrew (Lenoir City, TN); Shor, Joel T. (Oak Ridge, TN)

1985-01-01T23:59:59.000Z

131

Atomic Dynamics and Viscosity in the Liquid - Programmaster.org  

Science Conference Proceedings (OSTI)

Recently we discovered a direct link between viscosity and the atomic level ... Measuring Strains In Operando in Alloy-based Anodes for Lithium Ion ... Synchrotron X-ray Diffraction Study of the Plasticity of Bulk Metallic Glass Composites.

132

Bulk viscosity and the conformal anomaly in the pion gas  

E-Print Network (OSTI)

We calculate the bulk viscosity of the massive pion gas within Unitarized Chiral Perturbation Theory. We obtain a low temperature peak arising from explicit conformal breaking due to the pion mass and another peak near the critical temperature, dominated by the conformal anomaly through gluon condensate terms. The correlation between bulk viscosity and conformal breaking supports a recent QCD proposal. We discuss the role of resonances, heavier states and large-$N_c$ counting.

D. Fernandez-Fraile; A. Gomez Nicola

2008-09-26T23:59:59.000Z

133

Viscosity of alumina nanoparticles dispersed in car engine coolant  

Science Conference Proceedings (OSTI)

The present paper, describes our experimental results on the viscosity of the nanofluid prepared by dispersing alumina nanoparticles (car coolant. The nanofluid prepared with calculated amount of oleic acid (surfactant) was tested to be stable for more than 80 days. The viscosity of the nanofluids is measured both as a function of alumina volume fraction and temperature between 10 and 50 C. While the pure base fluid display Newtonian behavior over the measured temperature, it transforms to a non-Newtonian fluid with addition of a small amount of alumina nanoparticles. Our results show that viscosity of the nanofluid increases with increasing nanoparticle concentration and decreases with increase in temperature. Most of the frequently used classical models severely under predict the measured viscosity. Volume fraction dependence of the nanofluid viscosity, however, is predicted fairly well on the basis of a recently reported theoretical model for nanofluids that takes into account the effect of Brownian motion of nanoparticles in the nanofluid. The temperature dependence of the viscosity of engine coolant based alumina nanofluids obeys the empirical correlation of the type: log ({mu}{sub nf}) = A exp(BT), proposed earlier by Namburu et al. (author)

Kole, Madhusree; Dey, T.K. [Thermophysical Measurements Laboratory, Cryogenic Engineering Centre, Indian Institute of Technology, Kharagpur 721 302 (India)

2010-09-15T23:59:59.000Z

134

Synthetic laser medium  

DOE Patents (OSTI)

A laser medium is particularly useful in high average power solid state lasers. The laser medium includes a chromium dopant and preferably neodymium ions as codopant, and is primarily a gadolinium scandium gallium garnet, or an analog thereof. Divalent cations inhibit spiral morphology as large boules from which the laser medium is derived are grown, and a source of ions convertible between a trivalent state and a tetravalent state at a low ionization energy are in the laser medium to reduce an absorption coefficient at about one micron wavelength otherwise caused by the divalent cations. These divalent cations and convertible ions are dispersed in the laser medium. Preferred convertible ions are provided from titanium or cerium sources.

Stokowski, S.E.

1987-10-20T23:59:59.000Z

135

Tropical Cyclone Formations over the Western North Pacific in the Navy Operational Global Atmospheric Prediction System Forecasts  

Science Conference Proceedings (OSTI)

A set of criteria is developed to identify tropical cyclone (TC) formations in the Navy Operational Global Atmospheric Prediction System (NOGAPS) analyses and forecast fields. Then the NOGAPS forecasts of TC formations from 1997 to 1999 are ...

Kevin K. W. Cheung; Russell L. Elsberry

2002-08-01T23:59:59.000Z

136

Synoptic Forecasting of the Oceanic Mixed Layer Using the Navy's Operational Environmental Data Base: Present Capabilities and Future Applications  

Science Conference Proceedings (OSTI)

A synoptic forecast model of the oceanic mixed layer has been developed for operational use at the U.S. Navy's Fleet Numerical Oceanography Center (FNOC), Monterey, Calif. The potential success of this model depends critically on the quality of ...

R. Michael Clancy; Paul J. Martin

1981-06-01T23:59:59.000Z

137

Shear viscosity of neutron-rich nucleonic matter near its liquid-gas phase transition  

E-Print Network (OSTI)

Within a relaxation time approach using free nucleon-nucleon cross sections modified by the in-medium nucleon masses that are determined from an isospin- and momentum-dependent effective nucleon-nucleon interaction, we investigate the specific shear viscosity ($\\eta/s$) of neutron-rich nucleonic matter near its liquid-gas phase transition. It is found that as the nucleonic matter is heated at fixed pressure or compressed at fixed temperature, its specific shear viscosity shows a valley shape in the temperature or density dependence, with the minimum located at the boundary of the phase transition. Moreover, the value of $\\eta/s$ drops suddenly at the first-order liquid-gas phase transition temperature, reaching as low as $4\\sim5$ times the KSS bound of $\\hbar/4\\pi$. However, it varies smoothly for the second-order liquid-gas phase transition. Effects of the isospin degree of freedom and the nuclear symmetry energy on the value of $\\eta/s$ are also discussed.

Jun Xu; Lie-Wen Chen; Che Ming Ko; Bao-An Li; Yu-Gang Ma

2013-06-23T23:59:59.000Z

138

NREL: News - NREL Teams with Navy, Private Industry to Make Jet Fuel from  

NLE Websites -- All DOE Office Websites (Extended Search)

313 313 NREL Teams with Navy, Private Industry to Make Jet Fuel from Switchgrass Project could spur jobs in rural America, lead to less reliance of foreign oil June 6, 2013 The Energy Department's National Renewable Energy Laboratory (NREL) is partnering with Cobalt Technologies, U.S. Navy, and Show Me Energy Cooperative to demonstrate that jet fuel can be made economically and in large quantities from a renewable biomass feedstock such as switch grass. "This can be an important step in the efforts to continue to displace petroleum by using biomass resources," NREL Manager for Bioprocess Integration R&D Dan Schell said. "We're converting biomass into sugars for subsequent conversion to butanol and then to JP5 jet fuel." It's one of four biorefinery projects funded recently by the Energy

139

History of Ramjet and Scramjet Propulsion Development for U.S. Navy Missiles  

E-Print Network (OSTI)

this article is to summarize the evolution and development of ramjet engines (and variants thereof) as propulsion systems for missiles flying at supersonic (or faster) flight speeds that have been supported by the U.S. Navy since World War II. Reference 1 provides a discussion on the details of the types of engines under discussion, along with their limitations, and a historical perspective on the evolutionary timescale of ramjets, scramjets, and mixed-cycle engines. Reference 2 presents a similar discussion for U.S. Air Force--developed systems. In this article we summarize programs to develop surface-launched and air-launched subsonic combustion ramjets and scramjets. Table 1 shows the evolutionary history of all of the ramjet and scramjet engine and vehicle concepts and systems included in these discussions. The names, engine types, dates, performance, system constraints, etc., for each are presented. (Some information is not given for reasons of security.) The U.S. Navy has supported and developed a substantial technology base, including a variety of ramjets. This technology base, however, is not nearly as substantial for scramjets and their derivatives. A number of these ramjet engines and ramjet-powered weapon concepts have been flight tested, but none at hypersonic speeds. Only one U.S. Navy ramjet system has ever become operational (the Talos), and it is still being used as a target today (Vandal). SURFACE-LAUNCHED RAMJET DEVELOPMENT

P. J. Waltrup; Michael E. White; Frederick Zarlingo; Edward S. Gravlin

1997-01-01T23:59:59.000Z

140

The Next Generation Air Particle Detectors for the United States Navy  

Science Conference Proceedings (OSTI)

Design and testing of the United States Navys 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.

Robert Hayes and Craig Marianno

2007-06-24T23:59:59.000Z

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


141

The Viscosity of a Liquid Plutonium-Iron Eutectic Alloy  

SciTech Connect

The viscosity of a liquid plutonium-iron eutectic alloy, which contains 9.5 atom per cent iron and melts at 411 degrees C, was determined up to 808 degrees C at Mound Laboratory by an oscillating cup viscosimeter. This type of apparatus employed a right-circular cylindrical cup containing the liquid under investigation attached to a torsion fiber. The dampening effect of the liquid upon the normal oscillations of the pendululm was a function of the viscosity of the liquid. The amplitudes of the oscillations of the pendulum were measured by a photographic technique. The periods of the oscillations were determined by an automatic timing mechanism. The reliability of the viscosimeter was demonstrated by following the expected function of the viscosity of liquid lead and bismuth over a larger temperature range than was previously reported.

Wittenberg, L. J., Jones, L. V., Ofte, D.

1960-04-01T23:59:59.000Z

142

Effective viscosity of non-gravitactic Chlamydomonas Reinhardtii microswimmer suspensions  

E-Print Network (OSTI)

Active microswimmers are known to affect the macroscopic viscosity of suspensions in a more complex manner than passive particles. For puller-like microswimmers an increase in the viscosity has been observed. It has been suggested that the persistence of the orientation of the microswimmers hinders the rotation that is normally caused by the vorticity. It was previously shown that some sorts of algaes are bottom-heavy swimmers, i.e. their centre of mass is not located in the centre of the body. In this way, the algae affects the vorticity of the flow when it is perpendicular oriented to the axis of gravity. This orientation of gravity to vorticity is given in a rheometer that is equipped with a cone-plate geometry. Here we present measurements of the viscosity both in a cone-plate and a Taylor-Couette cell. The two set-ups yielded the same increase in viscosity although the axis of gravitation in the Taylor-Couette cell is parallel to the direction of vorticity. In a complementary experiment we tested the orientation of the direction of swimming through microscopic observation of single \\textit{Chlamydomonas reinhardtii} and could not identify a preferred orientation, i. e. our specific strain of \\textit{Chlamydomonas reinhardtii} are not bottom-heavy swimmers. We thus conclude that bottom heaviness is not a prerequisite for the increase of viscosity and that the effect of gravity on the rheology of our strain of \\textit{Chlamydomonas reinhardtii} is negligible. This finding reopens the question of whether origin of persistence in the orientation of cells is actually responsible for the increased viscosity of the suspension.

Matthias Mussler; Salima Rafai; Philippe Peyla; Christian Wagner

2013-10-05T23:59:59.000Z

143

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

E-Print Network (OSTI)

Prior to 1917, the United States Navy only utilized public relations techniques during times of war or to attract recruits into naval service. Following World I, the Navy confronted several daunting problems, including the postwar demobilization of naval assets, the proposed creation of an independent air service, and a public desire for naval arms limitation which many officers believed would endanger the Navy's ability to fulfill its missions. These issues threatened the generous support that the Navy had received from Congress for a quarter of a century, and also hampered the service's attempts to incorporate new weapons systems into its arsenal and recruit high-quality manpower. In response to these challenges, the Navy developed a peacetime public relations capability during the interwar period, despite the fact that many senior naval officials placed a low priority on public relations. Their attitude led subordinates in different parts of the Navy Department to perform public relations tasks despite lacking official orders to carry out such work. Such efforts were haphazard, redundant, handicapped by tradition, and dependent largely upon individual initiative. To augment its meager capabilities, the Navy relied upon external groups, such as the Navy League, to lobby the public for naval expansion. The service also developed formal and informal ties to the mass media, particularly the rapidly expanding motion picture industry. These disparate elements attempted to convince the public that the Navy was a haven for morally upright masculine behavior, a service able to integrate aircraft and submarines into its force structure and keep their operators safe, and a vital national asset with value beyond basic national defense. During the interwar period, the Navy expanded and reorganized the ways in which it courted public opinion. By forging ties with motion picture studios, radio broadcasters, and the print media, it was able to improve the image of the service, attract high quality recruits, and gained the public support for its drive to gain the resources needed to modernize and expand the fleet. During the same era, naval officials became more adept at minimizing the negative impact of the accidents linked to the development of aviation and submarines. Developments of the era laid the foundation for the institutional development of public relations and enhanced media relations during World War II and in the decades that followed.

Wadle, Ryan David

2011-05-01T23:59:59.000Z

144

Effect of Varying Bulk Viscosity on Generalized Chaplygin Gas  

E-Print Network (OSTI)

In this paper, viscous generalized Chaplygin gas as a model of dark energy considered. We assume non-constant bulk viscous coefficient and study dark energy density. We consider several cases of density-dependent viscosities. We find that, in the special case, the viscous generalized Chaplygin gas is corresponding to modified Chaplygin gas.

Saadat, H

2013-01-01T23:59:59.000Z

145

Effect of Varying Bulk Viscosity on Generalized Chaplygin Gas  

E-Print Network (OSTI)

In this paper, viscous generalized Chaplygin gas as a model of dark energy considered. We assume non-constant bulk viscous coefficient and study dark energy density. We consider several cases of density-dependent viscosities. We find that, in the special case, the viscous generalized Chaplygin gas is corresponding to modified Chaplygin gas.

H. Saadat; B. Pourhassan

2013-05-26T23:59:59.000Z

146

Glass viscosity calculation based on a global statistical modelling approach  

SciTech Connect

A global statistical glass viscosity model was developed for predicting the complete viscosity curve, based on more than 2200 composition-property data of silicate glasses from the scientific literature, including soda-lime-silica container and float glasses, TV panel glasses, borosilicate fiber wool and E type glasses, low expansion borosilicate glasses, glasses for nuclear waste vitrification, lead crystal glasses, binary alkali silicates, and various further compositions from over half a century. It is shown that within a measurement series from a specific laboratory the reported viscosity values are often over-estimated at higher temperatures due to alkali and boron oxide evaporation during the measurement and glass preparation, including data by Lakatos et al. (1972) and the recently published High temperature glass melt property database for process modeling by Seward et al. (2005). Similarly, in the glass transition range many experimental data of borosilicate glasses are reported too high due to phase separation effects. The developed global model corrects those errors. The model standard error was 9-17C, with R^2 = 0.985-0.989. The prediction 95% confidence interval for glass in mass production largely depends on the glass composition of interest, the composition uncertainty, and the viscosity level. New insights in the mixed-alkali effect are provided.

Fluegel, Alex

2007-02-01T23:59:59.000Z

147

Determination of Liquidus Temperatures from Viscosity for CaO ...  

Science Conference Proceedings (OSTI)

A Novel Vacuum Aluminothermic Reduction Lithium Process A Study on Production of ... An Estimation Model for the Viscosities of CaF2(-CaO)-Al2O3 Slags .... The Directional Preparation of Colored Steel Slag Glass-ceramic The Effect of...

148

Design And Simulation Of A Real-time Price Demand Response Program For Electricity Subject To A Capacity Constraint For The Philadelphia Navy Yard.  

E-Print Network (OSTI)

??This thesis is based on data from the Philadelphia Navy Yard, which has its own transmission and distribution electric micro-grid and is home for commercial (more)

Cortes, Mercedes

2012-01-01T23:59:59.000Z

149

The Neutral Medium  

E-Print Network (OSTI)

We consider the physical conditions of the neutral medium within, and in the environments of, galaxies. The basic physical and morphological properties of the neutral medium within galaxy disks are now quite well-constrained. Systematic variations in temperature and phase-balance (of cool versus warm neutral gas) are indicated as a function of both radius and z-height. Interestingly, the cool medium line-widths are observed to be dominated by turbulent energy injection within cells of 10 pc to 1 kpc size. Deep new observations reveal that 5-10% of the neutral medium is associated within an extended halo which rotates more slowly and experiences radial inflow. Much of this component is likely to be associated with a ``galactic fountain'' type of phenomenon. However, compelling evidence is also accumulating for the importance of tidal disruption of satellites as well as continuous accretion (of both diffuse and discrete components) in fueling galaxy halos and disks. Continued fueling is even observed on scales of 100's of kpc in galaxy environments, where the neutral component is likely to be merely a trace constituent of a highly ionized plasma.

Robert Braun

2005-01-17T23:59:59.000Z

150

Viscosity of aqueous and cyanate ester suspensions containing alumina nanoparticles  

DOE Green Energy (OSTI)

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

Lawler, Katherine

2009-08-05T23:59:59.000Z

151

United States navy fleet problems and the development of carrier aviation, 1929-1933  

E-Print Network (OSTI)

The U.S. Navy first took official notice of aviation in 1910, but its development of carrier aviation lagged behind Great Britain??s until the 1920s. The first American aircraft carrier, the Langley, commissioned in 1919, provided the Navy with a valuable platform to explore the potential uses of carrier aviation, but was usually limited to scouting and fleet air defense in the U.S. Navy??s annual interwar exercises called fleet problems. This began to change in 1929 with the introduction of the carriers Lexington and Saratoga in Fleet Problem IX. After this exercise, which included a raid by aircraft from the Saratoga that ??destroyed?? the Pacific side of the Panama Canal, the carriers were assigned a wider variety of roles over the next five years of exercises. During this time, the carriers gained their independence from the battle line, which the smaller and slower Langley had been unable to do. Reflecting the advanced capabilities of the new carriers, the fleet problems conducted during Admiral William Veazie Pratt??s tenure as Chief of Naval Operations, 1930-1933, began to test the employment of the new carriers as the centerpiece of one of the opposing fleets within the exercises. The Lexington and Saratoga were used offensively during these exercises, employing their aircraft to sink surface ships, though not battleships, and successfully strike targets ashore. The carriers became successful in spite of the unreliability of early 1930s carrier aircraft, particularly the torpedo bombers, that could carry heavy payloads. Lessons learned from the Lexington and Saratoga Fleet Problems IX through XIV influenced the design of the next generation of American aircraft carriers, the Yorktownclass, which were authorized in 1933. These new carriers were faster and much larger than the carrier Ranger, commissioned in 1934 and designed before the Lexington and Saratoga began participating in the exercises. Features incorporated into the Yorktownclass based on operational experience included the reduced need for large surface batteries because of the use of escort vessels, the emphasis of armoring against shellfire over aerial bombs and torpedoes, and the capability to launch large numbers of aircraft quickly.

Wadle, Ryan David

2005-08-01T23:59:59.000Z

152

Eddy Viscosity and Stochastic Backscatter Parameterizations on the Sphere for Atmospheric Circulation Models  

Science Conference Proceedings (OSTI)

Stochastic backscatter, eddy drain viscosity, and net eddy viscosity parameterizations are formulated and calculated for two-dimensional turbulence on the sphere based on eddy damped quasi-normal Markovian and direct interaction approximation ...

Jorgen S. Frederiksen; Antony G. Davies

1997-10-01T23:59:59.000Z

153

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

E-Print Network (OSTI)

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 ...

Tirtaatmadja, Viyada

2007-01-23T23:59:59.000Z

154

Liquid chromatographic extraction medium  

DOE Patents (OSTI)

A method and apparatus are disclosed for extracting strontium and technetium values from biological, industrial and environmental sample solutions using a chromatographic column. An extractant medium for the column is prepared by generating a solution of a diluent containing a Crown ether and dispersing the solution on a resin substrate material. The sample solution is highly acidic and is introduced directed to the chromatographic column and strontium or technetium is eluted using deionized water. 1 fig.

Horwitz, E.P.; Dietz, M.L.

1994-09-13T23:59:59.000Z

155

Liquid chromatographic extraction medium  

DOE Patents (OSTI)

A method and apparatus for extracting strontium and technetium values from biological, industrial and environmental sample solutions using a chromatographic column is described. An extractant medium for the column is prepared by generating a solution of a diluent containing a Crown ether and dispersing the solution on a resin substrate material. The sample solution is highly acidic and is introduced directed to the chromatographic column and strontium or technetium is eluted using deionized water.

Horwitz, E. Philip (Naperville, IL); Dietz, Mark L. (Evanston, IL)

1994-01-01T23:59:59.000Z

156

BUOYANCY INSTABILITIES IN A WEAKLY COLLISIONAL INTRACLUSTER MEDIUM  

SciTech Connect

The intracluster medium (ICM) of galaxy clusters is a weakly collisional plasma in which the transport of heat and momentum occurs primarily along magnetic-field lines. Anisotropic heat conduction allows convective instabilities to be driven by temperature gradients of either sign: the magnetothermal instability (MTI) in the outskirts of clusters and the heat-flux buoyancy-driven instability (HBI) in their cooling cores. We employ the Athena magnetohydrodynamic code to investigate the nonlinear evolution of these instabilities, self-consistently including the effects of anisotropic viscosity (i.e., Braginskii pressure anisotropy), anisotropic conduction, and radiative cooling. We find that, in all but the innermost regions of cool-core clusters, anisotropic viscosity significantly impairs the ability of the HBI to reorient magnetic-field lines orthogonal to the temperature gradient. Thus, while radio-mode feedback appears necessary in the central few Multiplication-Sign 10 kpc, heat conduction may be capable of offsetting radiative losses throughout most of a cool core over a significant fraction of the Hubble time. Magnetically aligned cold filaments are then able to form by local thermal instability. Viscous dissipation during cold filament formation produces accompanying hot filaments, which can be searched for in deep Chandra observations of cool-core clusters. In the case of MTI, anisotropic viscosity leads to a nonlinear state with a folded magnetic field structure in which field-line curvature and field strength are anti-correlated. These results demonstrate that, if the HBI and MTI are relevant for shaping the properties of the ICM, one must self-consistently include anisotropic viscosity in order to obtain even qualitatively correct results.

Kunz, Matthew W.; Stone, James M. [Department of Astrophysical Sciences, Princeton University, Peyton Hall, 4 Ivy Lane, Princeton, NJ 08544 (United States); Bogdanovic, Tamara; Reynolds, Christopher S., E-mail: kunz@astro.princeton.edu, E-mail: jstone@astro.princeton.edu, E-mail: tamarab@astro.umd.edu, E-mail: chris@astro.umd.edu [Department of Astronomy, University of Maryland, College Park, MD 20742 (United States)

2012-08-01T23:59:59.000Z

157

Apparatus and method for high temperature viscosity and temperature measurements  

DOE Patents (OSTI)

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.

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

2001-01-01T23:59:59.000Z

158

Kinetic Alfven double layer formed by electron viscosity  

SciTech Connect

The effect of the electron viscosity on the kinetic Alfven solitary wave is investigated. It is found that small electron viscosity changes the electron motion along the magnetic field producing a boundary layer, and thus that in a low beta electron-ion plasma({beta} Much-Less-Than m{sub e}/m{sub i}), an obliquely propagating kinetic solitary Alfven wave can become a double layer. This double layer can exist in the sub-Alfvenic and super-Alfvenic regimes. The length scale of density drop for this double layer is on the order of that of the conventional kinetic solitary Alfven wave, and thus this double layer can accelerate electrons on a very short length scale.

Woo, M. H.; Ryu, C.-M. [Department of Physics, Pohang University of Science and Technology, Pohang 790-784 (Korea, Republic of); Choi, C. R. [Department of Physics, Korea Advanced Institute of Science and Technology, Taejon 305-701 (Korea, Republic of)

2012-07-15T23:59:59.000Z

159

Phantom dark energy as an effect of bulk viscosity  

E-Print Network (OSTI)

In a homogeneous and isotropic universe bulk viscosity is the unique viscous effect capable to modify the background dynamics. Effects like shear viscosity or heat conduction can only change the evolution of the perturbations. The existence of a bulk viscous pressure in a fluid, which in order to obey to the second law of thermodynamics is negative, reduces its effective pressure. We discuss in this study the degeneracy in bulk viscous cosmologies and address the possibility that phantom dark energy cosmology could be caused by the existence of non-equilibrium pressure in any cosmic component. We establish the conditions under which either matter or radiation viscous cosmologies can be mapped into the phantom dark energy scenario with constraints from multiple observational data-sets

Hermano Velten; Jiaxin Wang; Xinhe Meng

2013-07-16T23:59:59.000Z

160

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

SciTech Connect

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.

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

1985-01-01T23:59:59.000Z

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


161

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

E-Print Network (OSTI)

Predicting reservoir oil viscosity with numerical correlation equations using field-measured variables is widely used in the petroleum industry. Most published correlation equations, however, have never profoundly realized the genuine relationship between the reservoir oil viscosity and other field-measured parameters. Using the proposed systematic strategy is an effective solution for achieving a high performance correlation equation of reservoir oil viscosity. The proposed strategy begins 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 approaches to determine the influential parameters for correlating reservoir oil viscosity equations. The alternating conditional expectation (ACE) algorithm is applied for correlating saturated and undersaturated oil viscosity equations. The precision of field-measured PVT data is inspected by a data reconciliation technique in order to clarify the correctness of oil viscosity correlations. Finally, the performance of the proposed oil viscosity correlation equations is represented in terms of statistical error analysis functions. The result of this study shows that reservoir oil density turns out to be the most effective parameter for correlating both saturated and undersaturated reservoir oil viscosity equations. Expected errors in laboratory-measured oil viscosity are the main factors that degrade the efficiency of oil viscosity correlation equations. The proposed correlation equations provide a reasonable estimate of reservoir oil viscosity; and their superior performance is more reliable than that of published correlation equations at any reservoir conditions.

Kulchanyavivat, Sawin

2005-12-01T23:59:59.000Z

162

A framework for developing a mimetic tensor artificial viscosity for Lagrangian hydrocodes on arbitrary polygonal meshes  

Science Conference Proceedings (OSTI)

We construct a new mimetic tensor artificial viscosity on general polygonal meshes. The tensor artificial viscosity is based on discretization of coordinate invariant operators, divergence of a tensor and gradient of a vector. The focus of this paper ... Keywords: Artificial numerical viscosity, Lagrangian hydrodynamics, Polygonal meshes

K. Lipnikov; M. Shashkov

2010-10-01T23:59:59.000Z

163

Viscosity and Rotation in Core-Collapse Supernovae  

E-Print Network (OSTI)

We construct models of core-collapse supernovae in one spatial dimension, including rotation, angular momentum transport, and viscous dissipation employing an alpha-prescription. We compare the evolution of a fiducial 11 M_sun non-rotating progenitor with its evolution including a wide range of imposed initial rotation profiles (1.25viscosity in the core-collapse environment: neutrino viscosity, turbulent viscosity caused by the magnetorotational instability (MRI), and turbulent viscosity by entropy- and composition-gradient-driven convection. We argue that the MRI is the most effective. We find that for rotation periods in the range P_0<~5 s, and a range of viscous stresses, that the post-bounce dynamics is significantly effected by the inclusion of this extra energy deposition mechanism; in several cases we obtain strong supernova explosions.

Todd A. Thompson; Eliot Quataert; Adam Burrows

2004-03-09T23:59:59.000Z

164

THERMAL CONDUCTIVITY AND VISCOSITY OF GAS MIXTURES (thesis)  

SciTech Connect

Correlations based upon empirical modified equations derived from kinetic theory were developed for the thermal conductivity and viscosity of gas mixtures. The conductivity equation was compared to 226 binary mixture conductivities in temperatures from 0 to 774 deg C from the literature and this work. The average deviation is 2.1%. In correlating conductivity data of mixtures of polyatomic molecules, the energy transport is considered in two parts, i.e., one protion transferred by collision and the other by diffusion. The proposed viscosity equation reproduces 103 binary data points with an average deviation of 1.3%. These equations are more consistent with experiment than existing correlations in the literature. the relation of the conductivity or viscosity to composition and temperature are discussed in the light of the proposed equations. It has been demonstrated that, at a given composition, the ratio of the measured conductivity to that calculated on the molar average basis for mixtures of most simple molecules and the ratio of the measured viscosity to that calculated on the molar average basis for mixtures of most gases should be nearly constant over a temperature range of 200 to 300 deg C. The thermal conductivity of ten gases and selected binary and ternary mixtures of them were measured in a concentric silver cylinder cell in the temperature range of 100 to 540 deg C The gases are He, A, N/sub 2/, O/sub 2/, CO/sub 2/, CH/sub 4/, C/sub 2/ H/sub 4/, C/sub 3/H/sub 8/, methyl ether , and methyl formats. (auth)

Cheung, H.

1958-04-01T23:59:59.000Z

165

Electrical Conduction, Heat Conduction, Shear Viscosity and Entropy  

E-Print Network (OSTI)

We present here how to study steady linear transport phenomena by using entropy. We study the system and the environment together and identify their entropies. Concerning their interaction, quantum mechanics is considered. A time parameter $\\tau$ is therefore introduced to characterize the discrete nature of the quantum interactions. By combining $\\tau$ and the entropy, an approach is constructed successfully to study electrical conduction, heat conduction and shear viscosity

Zhang, Yong-Jun

2010-01-01T23:59:59.000Z

166

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)

. So in order to improve our energy security, increase our energy independence, and help lead 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

167

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

Open Energy Info (EERE)

US Navy Wave Energy Technology WET Program at Marine Corps US 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 map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":5,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"500px","height":"350px","centre":false,"title":"","label":"","icon":"File:Aquamarine-marker.png","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":21.4164,"lon":-157.784,"alt":0,"address":"","icon":"http:\/\/prod-http-80-800498448.us-east-1.elb.amazonaws.com\/w\/images\/7\/74\/Aquamarine-marker.png","group":"","inlineLabel":"","visitedicon":""}]}

168

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

SciTech Connect

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.

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

1984-11-01T23:59:59.000Z

169

Nuclear medium effects in $\  

E-Print Network (OSTI)

We study the nuclear medium effects in the weak structure functions $F_2(x,Q^2)$ and $F_3(x,Q^2)$ in the deep inelastic neutrino/antineutrino reactions in nuclei. We use a theoretical model for the nuclear spectral functions which incorporates the conventional nuclear effects, such as Fermi motion, binding and nucleon correlations. We also consider the pion and rho meson cloud contributions calculated from a microscopic model for meson-nucleus self-energies. The calculations have been performed using relativistic nuclear spectral functions which include nucleon correlations. Our results are compared with the experimental data of NuTeV and CDHSW.

Haider, H; Athar, M Sajjad; Vacas, M J Vicente

2011-01-01T23:59:59.000Z

170

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

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.

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

1996-09-01T23:59:59.000Z

171

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

E-Print Network (OSTI)

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 since the Revolutionary War, found their labor devalued and opportunities for participation and promotion curtailed as civilian leaders and white naval personnel made repeated attempts to exclude blacks from the service. Between 1920 and 1942 the few black sailors who remained in the navy found few opportunities. The development of Jim Crow in the U.S. Navy occurred in three phases. During the first, between 1893 and 1919, a de facto policy excluded African Americans from all ratings save those of the messman's branch. The second major phase began in April 1919 with the cessation of domestic enlistments in the messmans branch. The meant the effective exclusion of blacks, as the navy had previously limited them to this one area of service. Between World War I and 1933 thousands of East Asians enlisted as messmen and stewards, replacing native-born Americans. The third phase, between 1933 and 1942, represented a qualified step forward for blacks as the navy again began to recruit them, though it limited them to the messman branch. In their circumscribed roles on board ship, black messmen and stewards suffered discrimination and possessed few opportunities for advancement. In the late-1930s and early-1940s public figures, including prominent leaders of the African American community, charged the navy, army, and defense industries with practicing racial discrimination. The navy, reflecting its general conservatism, responded slowly to demands for change. By 1942, however, the navy began detailing black men to billets outside the messmans branch, a first step away from Jim Crowstyle policies. This thesis analyzes the evolution of discriminatory and exclusionary enlistment policies in the navy. While others have provided the basic outline of segregation in the navy, this thesis provides a more complete analysis of the navys actions in the context of wider American society. This thesis also confirms that the navy was a slow-moving actor which followed the societys lead and did not substantially revise existing racial hierarchy.

Williams, Charles Hughes

2008-08-01T23:59:59.000Z

172

Impact of Resolution and Design on the U.S. Navy Global Ensemble Performance in the Tropics  

Science Conference Proceedings (OSTI)

The performance of the U.S. Navy global atmospheric ensemble prediction system is examined with a focus on tropical winds and tropical cyclone tracks. Ensembles are run at a triangular truncation of T119, T159, and T239, with 33, 17, and 9 ...

Carolyn A. Reynolds; Justin G. McLay; James S. Goerss; Efren A. Serra; Daniel Hodyss; Charles R. Sampson

2011-07-01T23:59:59.000Z

173

H.M.S. Pallas: historical reconstruction of an 18th-century Royal Navy frigate  

E-Print Network (OSTI)

A 1998 joint survey undertaken by the Institute of Nautical Archaeology and Portuguese authorities located and identified the sunken remains of the Royal Navy frigate HMS Pallas (1757-1783) off of the Azorean island of São Jorge. Physical remains are so limited as to suggest that excavation would likely yield little new information. However, much documentary evidence has been preserved in Admiralty archives. Contemporary treatises about 18th-century British ship construction focus on glossaries of terms, scantling lists and design theory, and include only short sections on frigates insofar as they apply to those topics. They rarely address specific construction aspects. Most current works address individual aspects of ship construction for the period, but provide little significant detail about the frigate as a ship type. All of these works are useful and reliable, however none attempt to combine the ship with the crew, or pursue the complete history of one ship. As the flagship of a prototypical class, intended to address French superiority in cruiser design, it is reasonable to expect that a history of Pallas would exist with some analysis of how successfully these new frigates fulfilled the Royal Navy?s perceived need. However, to date there has been no attempt to consolidate the evidence of her 26-year career. This study provides a comprehensive history of a single ship from perceived need and conceived solution through design and construction. The ship?s logbooks and additional primary sources made it possible to accurately document and analyze Pallas? activities, maintenance, modifications, and ultimately to draw conclusions about the overall effectiveness of the frigate type. I began with basic background information to establish the perceived need for a new frigate type, followed by an examination of the conceived design solution. A partial set of admiralty drafts served as a foundation from which to develop a more complete set of construction plans, a spar plan, and rigging plans. Comprehensive research into life aboard Royal Navy warships of the period provided a social context within which to examine the service history of Pallas. Finally, a review of the maintenance record and the events leading up to her sinking enabled an informed assessment of how well HMS Pallas fulfilled the perceived need for which she was developed.

Flynn, Peter Erik

2005-05-01T23:59:59.000Z

174

Effects of Bulk Viscosity in Non-linear Bubble Dynamics  

E-Print Network (OSTI)

The non-linear bubble dynamics equations in a compressible liquid have been modified considering the effects of compressibility of both the liquid and the gas at the bubble interface. A new bubble boundary equation has been derived, which includes a new term resulted from the liquid bulk viscosity effects. The influence of this term has been numerically investigated considering the effects of water vapor and chemical reactions on the bubble evolution. The results clearly indicate that the new term has an important damping role at the collapse, so that its consideration decreases the amplitude of the bubble rebounds after the collapse. This damping feature is more remarkable for higher deriving pressures.

Moshaii, A; Taeibi-Rahni, M; Moshaii, Ahmad; Sadighi-Bonabi, Rasool; Taeibi-Rahni, Mohammad

2003-01-01T23:59:59.000Z

175

Mr. Edward L. Whelan Director, Real Estate Division Department of The Navy  

Office of Legacy Management (LM)

Edward L. Whelan Edward L. Whelan Director, Real Estate Division Department of The Navy Eastern Division Naval'Facilities Engineering Command 90 Church Street New York, New York 10007 Subject: tqiddlesex Sampling Plant Mountain Avenue, Borough of Pliddlesex Middlesex County, Dew Jersey B-NJ-514 Dear Mr. Whelan: Confirming telephone conversation of January 10, 1969, between you and G. S. Brackett of this office, tic custody and accountability of the KC property listed in enclosures to the January 3, 1969, letter to you from General Services Administration,. subject as above, is transferred to the ,.~e;rtment of The iiavy, United States Elarine Corps, effective January 3, l . - Very truly yours, AU:GSB . .>;*, -=lS,' !. . . -, i$x EF$- 5 I' " ,' . 0 y;;;:

176

A plot study of the potential for Navy utilization of solid waste derived fuels to offset fossil fuels consumption. Final report  

SciTech Connect

A brief study was made to define problems that would be encountered in estimating potential Navy markets for various forms of waste derived fuels. Fossil fuel consumption estimates for boiler plants at several Navy activities were converted to waste derived fuel (WDF) estimates using a set of assumed rules judged technically feasible regarding boiler conversions and confirming fossil fuels and WDF. The results of this first study are presented indicating Navy boilers might represent a significant market for all the WDF a region could produce if the WDF were available in liquid as well as solid forms. The economic feasibility of conversions and WDF production are not addressed in this brief paper.

Capps, A.G.; Duffey-Armstrong, M.; Freeman, R.E.

1978-06-01T23:59:59.000Z

177

CMVRTC: Medium Truck Duty Cycle  

NLE Websites -- All DOE Office Websites (Extended Search)

medium truck duty cycle (MTdc) project medium truck duty cycle (MTdc) project OVERVIEW The Medium Truck Duty Cycle (MTDC) project involves efforts to collect, analyze and archive data related to medium-truck operations in real-world driving environments. Such data and information will be useful to support technology evaluation efforts and to provide a means of accounting for real-world driving performance within medium-class truck analyses. The project involves private industry partners from various truck vocations. The MTDC project is unique in that there currently does not exist a national database of characteristic duty cycles for medium trucks. This project involves the collection of data from multiple vocations (four vocations) and multiple vehicles within these vocations (three vehicles per

178

Control of Slag Chemistry for the Reduction of Viscosity and Refractory Corrosion  

The current invention describes methods to control slag chemistry for both the reduction of slag viscosity and refractory wear in gasification ...

179

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)

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 ...

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

1999-01-01T23:59:59.000Z

180

Medium Truck Duty Cycle (MTDC)  

NLE Websites -- All DOE Office Websites (Extended Search)

Routes Data Acquisition System Setup Routes Data Acquisition System Setup Medium Truck Duty Cycle (MTDC) Objective This Department of Energy project focuses on the collection and analysis medium truck (Class-6 and -7) duty cycle data from real-world operations. Analysis of this data will provide information pertaining to the fuel efficiencies and performance of medium trucks in several vocations. Outcomes Rich source of data and information that can contribute to the development of new tools Sound basis upon which DOE can make technology investment decisions A national archive of real-world-based medium-truck operational data that will support medium-duty vehicle energy efficiency research Collected Data Speed & Acceleration Fuel Consumption GPS Location Road Grade

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


181

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

DOE Patents (OSTI)

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.

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

1995-10-10T23:59:59.000Z

182

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

DOE Patents (OSTI)

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.

Tiegs, Terry N. (Lenoir City, TN); Wittmer, Dale E. (Carbondale, IL)

1995-01-01T23:59:59.000Z

183

A high-wavenumber viscosity for high-resolution numerical methods  

Science Conference Proceedings (OSTI)

A spectral-like viscosity is proposed for centered differencing schemes to help stabilize numerical solutions and reduce oscillations near discontinuities. Errors introduced by the added dissipation can be made arbitrarily small by adjusting the power ... Keywords: artificial viscosity, compact schemes, shock capturing

Andrew W. Cook; William H. Cabot

2004-04-01T23:59:59.000Z

184

Second law analysis for a variable viscosity plane Poiseuille flow with asymmetric convective cooling  

Science Conference Proceedings (OSTI)

A second-law analysis of a pressure-driven variable viscosity fluid flow through a channel with asymmetric convective cooling at the walls is investigated. Flow is assumed to be steady, laminar and fully-developed. The effect of heat generation due to ... Keywords: Asymmetric convective cooling, Entropy generation analysis, Poiseuille flow, Variable viscosity

O. D. Makinde; A. Aziz

2010-12-01T23:59:59.000Z

185

Nonequilibrium molecular dynamics simulation of shear viscosity by a uniform momentum source-and-sink scheme  

Science Conference Proceedings (OSTI)

A uniform momentum source-and-sink scheme of nonequilibrium molecular dynamics (NEMD) is developed to calculate the shear viscosity of fluids in this paper. The uniform momentum source and sink are realized by momentum exchanges of individual atoms in ... Keywords: Molecular fluid, Nonequilibrium molecular dynamics, Shear viscosity, Uniform source-and-sink scheme

Bing-Yang Cao; Ruo-Yu Dong

2012-06-01T23:59:59.000Z

186

Natural convection flow over an inclined flat plate with internal heat generation and variable viscosity  

Science Conference Proceedings (OSTI)

The present investigation deals with study of laminar natural convection flow of a viscous fluid over a semi-infinite flat plate inclined at a small angle to the horizontal with internal heat generation and variable viscosity. The dimensionless boundary ... Keywords: Heat generation, Inclined flat surface, Natural convection, Temperature dependent viscosity

S. Siddiqa; S. Asghar; M. A. Hossain

2010-11-01T23:59:59.000Z

187

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

Science Conference Proceedings (OSTI)

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.

Schmidt, A.J.; Freeman, H.D.; Brown, M.D.; Zacher, A.H.; Neuenschwander, G.N.; Wilcox, W.A.; Gano, S.R. [Pacific Northwest National Lab., Richland, WA (United States)] [Pacific Northwest National Lab., Richland, WA (United States); Kim, B.C.; Gavaskar, A.R. [Battelle Columbus Div., OH (United States)] [Battelle Columbus Div., OH (United States)

1996-02-01T23:59:59.000Z

188

Dissipative instability of MHD tangential discontinuity in magnetized plasmas with anisotropic viscosity and thermal conductivity.  

E-Print Network (OSTI)

The stability of the MHD tangential discontinuity is studied in compressible plasmas in the presence of anisotropic viscosity and thermal conductivity. The general dispersion equation is derived and solutions to this dispersion equation and stability criteria are obtained for the limiting cases of incompressible and cold plasmas. In these two limiting cases the effect of thermal conductivity vanishes and the solutions are only influenced by viscosity. The stability criteria for viscous plasmas are compared with those for ideal plasmas where stability is determined by the Kelvin-Helmholtz velocity VKH as a threshold for the difference in the equilibrium velocities. Viscosity turns out to have a destabilizing influence when the viscosity coefficient takes different values at the two sides of the discontinuity. Viscosity lowers the threshold velocity V c below the ideal KelvinHelmholtz velocity VKH , so that there is a range of velocities between V c and VKH where the overstability is of ...

Michael Ruderman; Erwin Verwichte; Robertus Erdelyi; Marcel Goossens; Elyiyy

1996-01-01T23:59:59.000Z

189

Development and field application of a mathematical model for predicting the kinematic viscosity of crude oil/diluter mixture under continuous production conditions  

SciTech Connect

Experience producing medium to heavy oil areas has demonstrated that most conventional artificial production systems are inefficient. This situation has been improved by mixing diluter fluids or light crude oil with medium to heavy crude oil downhole. The mixing increases production efficiency, crude oil selling value, and conditions crude to meet minimum selling conditions. An analytical model has been developed to analyze the behavior of crude oil/diluter mixtures under continuous production conditions. The model developed for this study has practical application in field operations. The most important applications are: to select the proper diluter fluid to be used in a specific area; to calculate the exact amount of diluter to be mixed with crude oil to obtain a specific viscosity; to forecast the amount of diluter fluid required for normal and continuous oilfield operations; to predict crude oil-diluter mixture kinematic viscosity under any proportion of the components for economic evaluation; and to calculate API gravities of the produced mixture under continuous operation. The crude oils used in this study have a gravity between 8.6/sup 0/API and 14.3/sup 0/API. The diluters used have a gravity between 31.4/sup 0/API and 63/sup 0/API. The paper presents the analytical model and one application to Venezuelan field in the Orinoco Petroleum Belt, one of the largest oil reserves in the world. Each well in the field has a different viscosity and different production rate. The production rate was considered continuous and under exponential decline.

Alcocer, C.F.; Menzie, D.E.

1986-01-01T23:59:59.000Z

190

Design and implement for diagnosis systems of hemorheology on blood viscosity syndrome based on GrC  

Science Conference Proceedings (OSTI)

This paper discusses the design and implement for the diagnosis software of blood flowing dynamic theory on blood viscosity syndrome (BVS). The BVS is a clinical syndrome caused by one or several blood viscosity factors. The software of diagnosis and ...

Qing Liu; Feng Jiang; Dayong Deng

2003-05-01T23:59:59.000Z

191

EXPERIMENTAL AND THEORETICAL DETERMINATION OF HEAVY OIL VISCOSITY UNDER RESERVOIR CONDITIONS  

Science Conference Proceedings (OSTI)

The USA deposits of heavy oils and tar sands contain significant energy reserves. Thermal methods, particularly steam drive and steam soak, are used to recover heavy oils and bitumen. Thermal methods rely on several displacement mechanisms to recover oil, but the most important is the reduction of crude viscosity with increasing temperature. The main objective of this research is 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. First, we reviewed critically the existing literature choosing the most promising models for viscosity determination. Then, we modified an existing viscosity correlation, based on the corresponding states principle in order to fit more than two thousand commercial viscosity data. We collected data for compositional and black oil samples (absence of compositional data). The data were screened for inconsistencies resulting from experimental error. A procedure based on the monotonic increase or decrease of key variables was implemented to carry out the screening process. The modified equation was used to calculate the viscosity of several oil samples where compositional data were available. Finally, a simple procedure was proposed to calculate black oil viscosity from common experimental information such as, boiling point, API gravity and molecular weight.

Dr. Jorge Gabitto; Maria Barrufet

2003-05-01T23:59:59.000Z

192

Flow meter evaluation for U.S. Navy Public Works Center, San Diego, California  

Science Conference Proceedings (OSTI)

The U.S. Navy Public Works Center San Diego (PWCSD) was concerned about the accuracy of various flow meters on steam and compressed air lines serving Naval facilities in San Diego, California. The flow meters had experienced various inconsistencies that had not been resolved prior to July 1993. Pacific Northwest Laboratory, Richland, Washington, evaluated the operation of 10 out of 79 steam and compressed air flow meters at PWCSD. The evaluation was limited to analysis of historical information and review of existing operating procedures. On-site investigation of the flow meters was limited to external observations of the flow-sensing equipment and a check of the flow computer program. PNL did not remove installed sensing equipment (i.e., flow meters or temperature or pressure sensors) to evaluate existing condition or check calibration. Although many of the flow meter errors can be traced to improperly normalized readings and to meters improperly compensated for temperature and pressure, lack of regular maintenance, including proper calibration, was evidenced throughout this study. A strict calibration schedule should be established for all steam and air flow meters, including calibration of the temperature sensor, pressure sensor, and flow turbine. It is recommended that the most crucial flow meters (such as the 10 evaluated in this study) be calibrated yearly. The remaining 69 flow meters could be placed on a staggered, biyearly calibration schedule. Calibration should be done by qualified personnel only. Improper calibration is often worse than no calibration at all. An outside firm is recommended to be contracted with to perform all maintenance and calibration on flow meters at the Naval facilities. Use of an outside firm would better facilitate regular, reliable calibration while removing liability for damaged parts.

Chvala, W.D. Jr.; McMordie, K.L.; Szydlowski, R.F.

1995-06-01T23:59:59.000Z

193

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

SciTech Connect

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.

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

1996-04-01T23:59:59.000Z

194

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

Science Conference Proceedings (OSTI)

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.

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

1991-03-01T23:59:59.000Z

195

Equatorial Circulation of a Global Ocean Climate Model with Anisotropic Horizontal Viscosity  

Science Conference Proceedings (OSTI)

Horizontal momentum flux in a global ocean climate model is formulated as an anisotropic viscosity with two spatially varying coefficients. This friction can be made purely dissipative, does not produce unphysical torques, and satisfies the ...

William G. Large; Gokhan Danabasoglu; James C. McWilliams; Peter R. Gent; Frank O. Bryan

2001-02-01T23:59:59.000Z

196

On Eddy Viscosity, Energy Cascades, and the Horizontal Resolution of Gridded Satellite Altimeter Products  

Science Conference Proceedings (OSTI)

Motivated by the recent interest in ocean energetics, the widespread use of horizontal eddy viscosity in models, and the promise of high horizontal resolution data from the planned wide-swath satellite altimeter, this paper explores the impacts of ...

Brian K. Arbic; Kurt L. Polzin; Robert B. Scott; James G. Richman; Jay F. Shriver

2013-02-01T23:59:59.000Z

197

D6: Viscosity of Ethylene Glycol+Water Based Al2O3 Nanofluids ...  

Science Conference Proceedings (OSTI)

However, few studies are available on viscosity of nanofluids especially in presence of ... A12: In Vitro Evaluation of Three-Dimensional PCL-Bioactive Glass Scaffolds .... D22: Phase Field Model of Li Dendrite Formation in Lithium Ion Batteries.

198

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

E-Print Network (OSTI)

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 ...

Takata, Rosalind (Rosalind Kazuko), 1978-

2006-01-01T23:59:59.000Z

199

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

E-Print Network (OSTI)

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.

Kuzkin, Vitaly A; Linkov, Aleksandr M

2013-01-01T23:59:59.000Z

200

Shear viscosity and the r-mode instability window in superfluid neutron stars  

E-Print Network (OSTI)

We analyze how recent computations of the shear viscosity $\\eta$ in the core of superfluid neutron stars affect the r-mode instability window. We first analyze the contribution of superfluid phonons to the viscosity, both in their hydrodynamical and ballistic regime. We also consider the recent computation of $\\eta$ arising from the collisions of electrons with electrons and protons by Shternin and Yakovlev, and discuss how the interactions among superfluid phonons and electrons might contribute to the shear viscosity. For assessing the r-mode instability window we compare the shear viscosity due to phonons in the hydrodynamical regime with respect to the shear viscosity due to electron collisions. Only at high temperatures the superfluid phonon contribution to $\\eta$ starts to dominate the process of r-mode damping. While our results for the instability window are preliminary, as other dissipative processes should be taken into account as well, they differ from previous evaluations of the r-mode damping due to the shear viscosity in superfluid neutron stars.

Cristina Manuel; Laura Tolos

2012-12-10T23:59:59.000Z

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


201

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

E-Print Network (OSTI)

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: San Francisco oil from Columbia with specific gravity of 28o-29o API, Duri oil with gravity of 19o-21o API, Jobo oil with gravity of 8o-9o API and San Ardo oil gravity of 11o-13o API. The additive used in all of the experiments is petroleum distillate. The experiments consist of using petroleum distillate as an additive for different samples of heavy crude oils. The experiments include making a mixture by adding petroleum distillate to oil samples and measuring surface tension, viscosity and density of pure oil samples and mixtures at different temperatures. The petroleum distillate/oil ratios are the following ratios: 1:100, 2:100, 3:100, 4:100 and 5:100. Experimental results showed that use of petroleum distillate as an additive increases API gravity and leads to reduction in viscosity and surface tension for all the samples. Results showed for all petroleum distillate/oil ratios viscosity and interfacial tension decreases with temperature. As petroleum distillate/oil ratio increases, oil viscosity and surface tension decrease more significantly at lower temperatures than at higher temperatures. After all experiments were completed an analytical correlation was done based on the experiment results to develop mixing rules. Using this correlation viscosity, density and surface tension of different petroleum distillate/oil mixtures were obtained (output).These had properties of pure oil and petroleum distillate, mixture ratios and temperatures at which measurement is supposed to be done (output). Using this correlation a good match was achieved. For all of the cases (viscosity, density and surface tension), correlation coefficient (R) was more than 0.9 which proved to be optimum for a really good match.

Abdullayev, Azer

2007-08-01T23:59:59.000Z

202

Nucleation kinetics of vapor bubbles in a liquid with arbitrary viscosity  

E-Print Network (OSTI)

The theory of vapor bubbles nucleation in single-component liquids developed in [J. Phys. Chem. B 116, 9445 (2012)] for the case of high viscosity (the (V,/rho,T)- theory) is extended to the case of arbitrary viscosity. For this purpose, Langevin's approach in the theory of Brownian motion, or Kramers' model of chemical reactions, is employed. The obtained expression for the bubbles nucleation rate is valid for arbitrary relations between the kinetic parameters controlling the nucleation process: viscosity, inertia of a liquid, the rate of evaporation into a bubble and the rate of heat exchange between the bubble and ambient liquid. So, the presented theory together with the (V,/rho,T)- theory gives a complete description of the vapor-bubbles nucleation kinetics in one-component liquids. Limiting cases with respect to the mentioned parameters are considered, in particular, the low viscosity limit. It is shown that the low- and high-viscosity nucleation rates differ from each other qualitatively and quantitatively. The possibility of application of the theory to cavitation in superfluid helium-4 is discussed.

Nikolay V. Alekseechkin

2013-02-21T23:59:59.000Z

203

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

SciTech Connect

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.

Spickermann, Thomas [Los Alamos National Laboratory

2012-07-26T23:59:59.000Z

204

Free convection over a non-isothermal axisymmetric body immersed in a porous medium saturated with an electrically conducting non-Newtonian fluid  

E-Print Network (OSTI)

The study investigates the problem of magnetohydrodynamic (MHD) free convection over a non-isothermal axisymmetric body under the action of transverse magnetic field. The body is embedded in a porous medium saturated with electrically conducting non-Newtonian power law fluid. In order to obtain similarity solution, it is assumed that the viscosity of the fluid decays exponentially with temperature. The qualitative results are illustrated for a vertical flat plate, horizontal cylinder and sphere.

Shobha Bagai; Chandrashekhar Nishad

2013-09-30T23:59:59.000Z

205

Feasibility study to update annualized cost of leaving (ACOL) procedures at the Navy Personnel Research and Development Center (NPRDC)  

Science Conference Proceedings (OSTI)

Accurate forecasts of officer retention rates are required in order to shape correctly the size and internal structure of the Navy manpower force through accession, promotion, and related policies. This study, conducted in 1987 for the Navy Personnel Research and Development Center (NPRDC), reviews existing forecasting and simulation methodologies and suggests new methods to implement in the future in order to improve forecasts of naval officer retention rates. The study also considers alternative sources of data to capture civilian earnings opportunities in the models. Two major types of models -- Annualized Cost of Leaving (ACOL) and Dynamic Retention (DR) -- are discussed in detail with respect to the ability to model and evaluate manpower policies of interest to NPRDC staff. A variety of other techniques which should be considered during the estimation stage are also discussed. The general study approach involved researching the subject area, the current data, the current models, and current estimation procedures. Available data and methodologies were then compared with the NPRDC problem in order to recommend potential solutions. This study did not include data collection or data analysis. This report is organized in eight sections. The Background Section discusses the history of officer retention models, the scope of officer manpower analysis at NPRDC, and NPRDC's history of officer loss-rate forecasting. Section 3 discusses the approach to model selection, which includes addition to a thorough discussion of the Dynamic Retention Model (DRM) and a comparison of the DRM and ACOL model. Section 5 presents alternative modeling directions for forecasting and a summary of compensation policy issues. The summary and conclusions appear in Section 6, and recommendations are in Section 7. References are in Section 8.2. 30 refs., 1 tab. (JF)

Trumble, D.; Flanagan, D.M.

1990-12-01T23:59:59.000Z

206

Viscosity of aqueous solutions of n-methyldiethanolamine and of diethanolamine  

Science Conference Proceedings (OSTI)

Aqueous solutions of alkanolamines such as monoethanolamine (MEA), diethanolamine (DEA), N-methyldiethanolamine (MDEA), di-2-propanolamine (DIPA), and bis[2-(hydroxyamino)ethyl] ether (DGA) are good solvents for the removal of acid gases such as CO[sub 2] and H[sub 2]S from the gas streams of many processes in the natural gas, petroleum, ammonia synthesis, and some chemical industries. The viscosity of aqueous solutions of methyldiethanolamine (MDEA) and of diethanolamine (DEA) have been measured at five temperatures in the range 25--80 C throughout the whole concentration range. The viscosity has been correlated as a function of composition for use in industrial calculations.

Teng, T.T.; Maham, Y.; Hepler, L.G.; Mather, A.E. (Univ. of Alberta, Edmonton, Alberta (Canada))

1994-04-01T23:59:59.000Z

207

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

E-Print Network (OSTI)

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.

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

2013-05-03T23:59:59.000Z

208

Three-dimensional simulations of geometrically complex subduction with large viscosity variations  

Science Conference Proceedings (OSTI)

The incorporation of geologic realism into numerical models of subduction is becoming increasingly necessary as observational and experimental constraints indicate plate boundaries are inherently three-dimensional (3D) in nature and contain large viscosity ... Keywords: ACM proceedings, mantle convection, multigrid, rheology, subduction

Margarete A. Jadamec; Magali I. Billen; Oliver Kreylos

2012-07-01T23:59:59.000Z

209

Phonon contribution to the shear viscosity of a superfluid Fermi gas in the unitarity limit  

E-Print Network (OSTI)

We present a detailed analysis of the contribution of small-angle Nambu-Goldstone boson (phonon) collisions to the shear viscosity, $\\eta$, in a superfluid atomic Fermi gas close to the unitarity limit. We show that the experimental values of the shear viscosity coefficient to entropy ratio, $\\eta/s$, obtained at the lowest reached temperature can be reproduced assuming that phonons give the leading contribution to $\\eta$. The phonon contribution is evaluated considering $1 \\leftrightarrow 2$ processes and taking into account the finite size of the experimental system. In particular, for very low temperatures, $T \\lesssim 0.1 T_F$, we find that phonons are ballistic and the contribution of phonons to the shear viscosity is determined by the processes that take place at the interface between the superfluid and the normal phase. This result is independent of the detailed form of the phonon dispersion law and leads to two testable predictions: the shear viscosity should correlate with the size of the optical trap and it should decrease with decreasing temperature. For higher temperatures the detailed form of the phonon dispersion law becomes relevant and, within our model, we find that the experimental data for $\\eta/s$ can be reproduced assuming that phonons have an anomalous dispersion law.

Massimo Mannarelli; Cristina Manuel; Laura Tolos

2012-12-20T23:59:59.000Z

210

Thermophysical Properties of Lithium Bromide + 1, 2-Propanediol Aqueous Solutions Solubility, Density and Viscosity  

SciTech Connect

The solubilities, densities and viscosities of lithium bromide (LiBr) + 1, 2-propanediol (HO-CH2-CHOH-CH3) aqueous solution (mass ratio of LiBr/HO-CH2-CHOH-CH3 = 3.5, 4.5 and 5.5) were measured in the mass fraction range from 0.30 to 0.75. Solubility measurements were performed by the visual method in the temperature range of (271.15 to 345.15) K. The density measurements were made using an automated vibrating tube density meter, and the viscosity measurements were carried out with an automated falling-ball viscometer in the temperature range of (293.15 to 363.15) K. The density and viscosity data were correlated with appropriate regression equations as a function of the mass fraction and temperature. The maximum average absolute deviations (AAD) between experimental and correlated data were 0.08% and 1.51% for densities and viscosities, respectively.

Wang, Kai [ORNL; Abdelaziz, Omar [ORNL; Vineyard, Edward Allan [ORNL

2012-01-01T23:59:59.000Z

211

Shear viscosity of a highly excited string and the black hole membrane paradigm  

Science Conference Proceedings (OSTI)

The black hole membrane paradigm states that a certain viscous membrane seems to be sitting on a stretched horizon of a black hole from the viewpoint of a distant observer. We show that the shear viscosity of the fictitious membrane can be reproduced by a highly excited string covering the stretched horizon except for a numerical coefficient.

Sasai, Yuya [Helsinki Institute of Physics, University of Helsinki, P.O. Box 64, FIN-00014 Helsinki (Finland); Department of Physics, University of Helsinki, P.O. Box 64, FIN-00014 Helsinki (Finland); Zahabi, Ali [Department of Physics, University of Helsinki, P.O. Box 64, FIN-00014 Helsinki (Finland)

2011-01-15T23:59:59.000Z

212

Cosmological model with viscosity media (dark fluid) described by an effective equation of state  

E-Print Network (OSTI)

A generally parameterized equation of state (EOS) is investigated in the cosmological evolution with bulk viscosity media modelled as dark fluid, which can be regarded as a unification of dark energy and dark matter. Compared with the case of the perfect fluid, this EOS has possessed four additional parameters, which can be interpreted as the case of the non-perfect fluid with time-dependent viscosity or the model with variable cosmological constant. From this general EOS, a completely integrable dynamical equation to the scale factor is obtained with its solution explicitly given out. (i) In this parameterized model of cosmology, for a special choice of the parameters we can explain the late-time accelerating expansion universe in a new view. The early inflation, the median (relatively late time) deceleration, and the recently cosmic acceleration may be unified in a single equation. (ii) A generalized relation of the Hubble parameter scaling with the redshift is obtained for some cosmology interests. (iii) By using the SNe Ia data to fit the effective viscosity model we show that the case of matter described by $p=0$ plus with effective viscosity contributions can fit the observational gold data in an acceptable level

J. Ren; Xin He Meng

2005-11-07T23:59:59.000Z

213

The Navy seeks to identify responsible sources and obtain information in regard to purchasing renewable power for Naval Air Station (NAS) Fallon, located in Fallon, NV  

NLE Websites -- All DOE Office Websites (Extended Search)

REQUEST FOR INFORMATION (RFI) for Renewable Generation REQUEST FOR INFORMATION (RFI) for Renewable Generation Opportunities at NAWS China Lake, NAS Fallon, MCAGCC 29 Palms, and MCAS Yuma The Department of Navy (DoN) intends to issue a Request for Proposal (RFP) in early 2009 for renewable energy generation opportunities at Naval Air Weapons Station (NAWS) China Lake, California; Naval Air Station (NAS) Fallon, Nevada; Marine Corps Air Ground Combat Center (MCAGCC) Twentynine Palms, California, and Marine Corps Air Station (MCAS) Yuma, Arizona. The DoN will consider opportunities for the purchase of renewable power, developer wholesale generation, distributed generation, and the combination of those opportunities. Specifically, the Navy will provide Government land on these installations for large

214

Medium-induced multi-photon radiation  

E-Print Network (OSTI)

We study the spectrum of multi-photon radiation off a fast quark in medium in the BDMPS/ASW approach. We reproduce the medium-induced one-photon radiation spectrum in dipole approximation, and go on to calculate the two-photon radiation in the Moli\\`{e}re limit. We find that in this limit the LPM effect holds for medium-induced two-photon ladder emission.

Ma, Hao; Tywoniuk, Konrad

2011-01-01T23:59:59.000Z

215

The Analysis and Conservation of Two 18-pounder Carronades from the U.S. Navy Schooner Shark  

E-Print Network (OSTI)

In February of 2008, two 18-pounder carronades were discovered off the Oregon coast near Arch Cape in Clatsop County. In addition to the carronades, several associated artifacts were collected from the site, including lengths of chain, a heavy iron wedge and a mooring shackle. The carronades and associated artifacts were transported to Texas A&M University's Conservation Research Laboratory for long-term preservation and conservation. While the primary objective of this thesis is to detail the various methods used in conserving the Arch Cape artifact assemblage, the work also serves as an analysis of the carronades themselves. The design and caliber of the guns as well as historic accounts suggest the carronades are associated with Shark, a U.S. Navy schooner built at the Washington Navy Yard in 1821. During its 25-year career, Shark spent 18 years operating in the Atlantic Ocean suppressing piracy in the West Indies and the slave trade off the western coast of Africa. The schooner was also stationed in the Mediterranean Sea and the Pacific Ocean before a final survey in the Oregon Territory in 1846 resulted in its loss in the Columbia River. It was reported that part of Shark's wreckage with three attached carronades came ashore south of Hug Point. In January 1898, a winter storm revealed one of the carronades, which was recovered, along with the schooner's capstan, a cleat and a chock. The discovery of the pair of carronades in 2008 is strong evidence that these, along with the carronade recovered in 1898, are the three guns attributed to USS Shark's wreckage. This thesis will also analyze indentifying features on the carronades, such as maker's marks and serial numbers, and explore the origins of the guns, determining how they came to be on board the American schooner by referring to records such as the Woolwich proof books and armament lists. The harsh conditions of the coastal environment affect the assemblage in a number of ways. While much of the metal of the assemblage is stable and can be treated using electrolysis, the delicate organic materials must undergo specific treatments. Since these organic artifacts were treated primarily with silicone oil, the thesis will compare some of the final results of using this polymer passivation technology with different materials, such as wood, leather and cordage. Finally, in addition to detailing the conservation of the assemblage, this thesis describe the reverse engineering required to disassemble the carronades and gun carriages.

Bajdek, Brennan P.

2012-05-01T23:59:59.000Z

216

ENERGY STAR Resources for Small & Medium Manufactures  

NLE Websites -- All DOE Office Websites (Extended Search)

Small & Medium Manufacturers Guide to Energy Management June 2013 ENERGY STAR is a U.S. Environmental Protection Agency Program helping organizations and individuals fight climate...

217

Medium energy nuclear data for applications  

SciTech Connect

The types of medium energy nuclear data required for applications are discussed. Features of analysis tools, consisting of both detailed nuclear model codes and simple formulas based on nuclear systematics are presented. The activities of the Medium Energy Nuclear Data Working Group (MENDWG) are described including the recent benchmark comparison of nuclear model codes. 40 refs., 7 figs.

Pearlstein, S.

1988-01-01T23:59:59.000Z

218

The medium is the medium : the convergence of video, art and television at WGBH (1969)  

E-Print Network (OSTI)

On March 23rd 1969 Boston's public television station WGBH broadcast a program titled The Medium is the Medium. The program was a half-hour long compilation of short videos by six artists. The six pieces ranged from ...

Nadeau, James A. (James Andrew)

2006-01-01T23:59:59.000Z

219

Lattice Boltzmann Method for Multiphase Flows with High Density and Viscosity Ratios  

NLE Websites -- All DOE Office Websites (Extended Search)

Lattice Boltzmann Method for Multiphase Flows with High Density and Viscosity Ratios Lattice Boltzmann Method for Multiphase Flows with High Density and Viscosity Ratios Seckin Gokaltun, Dwayne McDaniel and David Roelant Florida International University, Miami, FL Background As a result of atomic weapons production, millions of gallons of radioactive waste was generated and stored in underground tanks at various U.S. Department of Energy sites. Department of Energy is currently in the process of transferring the waste from single shell tanks to double shell tanks. Various waste retrieval and processing methods are employed during the transfer of the waste. One such method, pulsed-air mixing, involves injection of discrete pulses of compressed air or inert gas at the bottom of the tank to produce large bubbles that rise due to buoyancy and mix the waste in the tank

220

Use of ammonia to reduce the viscosity of bottoms streams produced in hydroconversion processes  

DOE Patents (OSTI)

Coal, petroleum residuum and similar carbonaceous feed materials are subjected to hydroconversion in the presence of molecular hydrogen to produce a hydroconversion effluent which is then subjected to one or more separation steps to remove lower molecular weight liquids and produce a heavy bottoms stream containing high molecular weight liquids and unconverted carbonaceous material. The viscosity of the bottoms streams produced in the separation step or steps is prevented from increasing rapidly by treating the feed to the separation step or steps with ammonia gas prior to or during the separation step or steps. The viscosity of the heavy bottoms stream produced in the final separation step is also controlled by treating these bottoms with ammonia gas. In a preferred embodiment of the invention, the effluent from the hydroconversion reactor is subjected to an atmospheric distillation followed by a vacuum distillation and the feeds to these distillations are contacted with ammonia during the distillations.

Zaczepinski, Sioma (Houston, TX); Billimoria, Rustom M. (Houston, TX); Tao, Frank (Baytown, TX); Lington, Christopher G. (Houston, TX); Plumlee, Karl W. (Baytown, TX)

1984-01-01T23:59:59.000Z

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


221

EXPERIMENTAL AND THEORETICAL DETERMINATION OF HEAVY OIL VISCOSITY UNDER RESERVOIR CONDITIONS  

Office of Scientific and Technical Information (OSTI)

EXPERIMENTAL AND THEORETICAL DETERMINATION OF HEAVY EXPERIMENTAL AND THEORETICAL DETERMINATION OF HEAVY OIL VISCOSITY UNDER RESERVOIR CONDITIONS FINAL PROGRESS REPORT PERIOD: OCT 1999-MAY 2003 CONTRACT NUMBER: DE-FG26-99FT40615 PROJECT START DATE: October 1999 PROJECT DURATION: October 1999 - May 2003 TOTAL FUNDING REQUESTED: $ 199,320 TECHNICAL POINTS OF CONTACT: Jorge Gabitto Maria Barrufet Prairie View A&M State University Texas A&M University Department of Chemical Engineering Petroleum Engineering Department Prairie View, TX 77429 College Station TX, 77204 TELE:(936) 857-2427 TELE:(979) 845-0314 FAX: (936) 857-4540 FAX:(979) 845-0325 EMAIL:jgabitto@aol.com EMAIL:barrufet@spindletop. tamu.edu 1 EXPERIMENTAL AND THEORETICAL DETERMINATION OF HEAVY OIL VISCOSITY UNDER RESERVOIR CONDITIONS

222

Viscosity control of the dynamic self-assembly in ferromagnetic suspensions  

E-Print Network (OSTI)

Recent studies of dynamic self-assembly in ferromagnetic colloids suspended in liquid-air or liquid-liquid interfaces revealed a rich variety of dynamic structures ranging from linear snakes to axisymmetric asters, which exhibit novel morphology of the magnetic ordering accompanied by large-scale hydrodynamic flows. Based on controlled experiments and first principle theory, we argue that the transition from snakes to asters is governed by the viscosity of the suspending liquid where less viscous liquids favor snakes and more viscous, asters. By obtaining analytic solutions of the time-averaged Navier-Stokes equations, we gain insights into the role of mean hydrodynamic flows and an overall balance of forces governing the self-assembly. Our results illustrate that the viscosity can be used to control the outcome of the dynamic self-assembly in magnetic colloidal suspensions.

D. L. Piet; A. V. Straube; A. Snezhko; I. S. Aranson

2013-04-17T23:59:59.000Z

223

Non-Equilibrium 2PI Potential and Its Possible Application to Evaluation of Bulk Viscosity  

E-Print Network (OSTI)

Within non-equilibrium Green's function technique on the real-time contour and the two-particle-irreducable (2PI) $\\Phi$-functional method, a non-equilibrium potential is introduced. It naturally generalizes the conventional thermodynamic potential with which it coincides in thermal equilibrium. Variations of the non-equilibrium potential over respective parameters result in the same quantities as those of the thermodynamic potential but in arbitrary non-equilibrium. In particular, for slightly non-equilibrium inhomogeneous configurations a variation of the non-equilibrium potential over volume is associated with the trace of the non-equilibrium stress tensor. The latter is related to the bulk viscosity. This provides a novel way for evaluation of the bulk viscosity.

Ivanov, Yu B

2013-01-01T23:59:59.000Z

224

A study of the propagation of compression waves in porous medium filled with steam  

Science Conference Proceedings (OSTI)

A preliminary investigation on the propagation of compression waves through a radial system of porous medium filled with steam has been conducted for the case of uniform and non-uniform basic temperature distributions. When a relatively weak pressure disturbance is introduced as a signal source in a uniform temperature system, it is found that the pressure disturbance decays away and smears out as time progresses. However, for the case of a nonuniform basic temperature distribution, the temperature gradient and fluid viscosity give significant effects on the reduction of pressure signal attenuation. The attenuation of the compression waves depends on the wave frequencies. For higher frequencies the strength of the signal decays rapidly, and for lower frequencies the signal could propagate farther away. It is found also that porosity and permeability distributions gives significant effects on the amplitude and the wave profiles.

Sutrisno; Djoko Wintolo; Samsul Kamal; Sudarman, S.

1996-01-24T23:59:59.000Z

225

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

Science Conference Proceedings (OSTI)

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.

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.

2013-05-14T23:59:59.000Z

226

Relationship between the shear viscosity and heating rate in metallic glasses below the glass transition  

Science Conference Proceedings (OSTI)

It has been shown that first-order irreversible structural relaxation with distributed activation energies must lead to a linear decrease of the logarithm of Newtonian shear viscosity with the logarithm of heating rate upon linear heating of glass. Such a behavior is indeed observed in the experiments on metallic glasses. Structural relaxation-induced viscous flow leads to infra-low-frequency Maxwell viscoelastic internal friction, which is predicted to increase with the heating rate.

Khonik, Vitaly A.; Kobelev, N. P. [Department of General Physics, State Pedagogical University, Lenin Street 86, 394043 Voronezh (Russian Federation); Institute for Solid State Physics, Chernogolovka, 142432 Moscow District (Russian Federation)

2008-04-01T23:59:59.000Z

227

THE INFLUENCE OF PRESSURE-DEPENDENT VISCOSITY ON THE THERMAL EVOLUTION OF SUPER-EARTHS  

Science Conference Proceedings (OSTI)

We study the thermal evolution of super-Earths with a one-dimensional (1D) parameterized convection model that has been adopted to account for a strong pressure dependence of the viscosity. A comparison with a 2D spherical convection model shows that the derived parameterization satisfactorily represents the main characteristics of the thermal evolution of massive rocky planets. We find that the pressure dependence of the viscosity strongly influences the thermal evolution of super-Earths-resulting in a highly sluggish convection regime in the lower mantles of those planets. Depending on the effective activation volume and for cooler initial conditions, we observe with growing planetary mass even the formation of a conductive lid above the core-mantle boundary (CMB), a so-called CMB-lid. For initially molten planets our results suggest no CMB-lids but instead a hot lower mantle and core as well as sluggish lower mantle convection. This implies that the initial interior temperatures, especially in the lower mantle, become crucial for the thermal evolution-the thermostat effect suggested to regulate the interior temperatures in terrestrial planets does not work for massive planets if the viscosity is strongly pressure dependent. The sluggish convection and the potential formation of the CMB-lid reduce the convective vigor throughout the mantle, thereby affecting convective stresses, lithospheric thicknesses, and heat fluxes. The pressure dependence of the viscosity may therefore also strongly affect the propensity of plate tectonics, volcanic activity, and the generation of a magnetic field of super-Earths.

Stamenkovic, Vlada; Noack, Lena; Spohn, Tilman [Institute of Planetology, Westfaelische Wilhelms-Universitaet Muenster, Wilhelm-Klemm-Str. 10, 48149 Muenster (Germany); Breuer, Doris, E-mail: Vlada.Stamenkovic@dlr.de, E-mail: Lena.Noack@dlr.de, E-mail: Doris.Breuer@dlr.de, E-mail: Tilman.Spohn@dlr.de [Institute of Planetary Research, German Aerospace Center DLR, Rutherfordstrasse 2, 12489 Berlin (Germany)

2012-03-20T23:59:59.000Z

228

Hydrocarbon compositions of high elongational viscosity and process for making the same  

SciTech Connect

A hydrocarbon composition is described consisting essentially of a hydrocarbon liquid and an ionic-association or coordination-complex polymer in an amount sufficient to increase and maintain the elongational viscosity of the composition at a level greater than that of the hydrocarbon alone. The polymer is capable of dissociation upon application of the high shear regime to which the hydrocarbon is subjected, and reassociation upon withdrawal of the high shear.

Hamil, H.F.; Weatherford, W.D. Jr.; Fodor, G.E.

1988-03-15T23:59:59.000Z

229

Leading order QCD shear viscosity from the three-particle irreducible effective action  

SciTech Connect

In this article we calculate the leading order shear viscosity in QCD using the resummed three-particle irreducible effective action. We work to 3-loop order in the effective action. We show that the integral equations that resum the pinch and collinear contributions are produced naturally by the formalism. All leading order terms are included, without the need for any kind of power counting arguments.

Carrington, M. E.; Kovalchuk, E. [Department of Physics, Brandon University, Brandon, Manitoba, R7A 6A9 (Canada) and Winnipeg Institute for Theoretical Physics, Winnipeg, Manitoba (Canada)

2009-10-15T23:59:59.000Z

230

Spectral functions for composite fields and viscosity in hot scalar field theory  

E-Print Network (OSTI)

We derive a spectral representation for the two-point Green function for arbitrary composite field operators in Thermo Field Dynamics (TFD). A simple way for calculating the spectral density within TFD is pointed out and compared with known results from the imaginary time formalism. The method is applied to hot $\\phi^4$ theory. We give a compact derivation of the one-loop contribution to the shear viscosity and show that it is dominated by low-momentum plasmons.

Enke Wang; Xiaofei Zhang; Ulrich Heinz

1995-09-19T23:59:59.000Z

231

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

E-Print Network (OSTI)

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 ...

Avadhany, Shakeel N

2009-01-01T23:59:59.000Z

232

A framework for developing a mimetic tensor artificial viscosity for Lagrangian hydrocodes on arbitrary polygonal and polyhedral meshes (u)  

Science Conference Proceedings (OSTI)

We construct a new mimetic tensor artificial viscosity on general polygonal and polyhedral meshes. The tensor artificial viscosity is based on a mimetic discretization of coordinate invariant operators, divergence of a tensor and gradient of a vector. The focus of this paper is on the symmetric form, div ({mu},{var_epsilon}(u)), of the tensor artificial viscosity where {var_epsilon}(u) is the symmetrized gradient of u and {mu}, is a tensor. The mimetic discretizations of this operator is derived for the case of a full tensor coefficient {mu}, that may reflect a shock direction. We demonstrate performance of the new viscosity for the Noh implosion, Sedov explosion and Saltzman piston problems in both Cartesian and axisymmetric coordinate systems.

Lipnikov, Konstantin [Los Alamos National Laboratory; Shashkov, Mikhail [Los Alamos National Laboratory

2011-01-11T23:59:59.000Z

233

Analytical formulas, general properties and calculation of transport coefficients in the hadron gas: shear and bulk viscosities  

E-Print Network (OSTI)

Elaborated calculations of the shear and the bulk viscosities in the hadron gas, using the ultrarelativistic quantum molecular dynamics (UrQMD) model cross sections, are made. These cross sections are analyzed and improved. A special treatment of the resonances is implemented additionally. All this allows for better hydrodynamical description of the experimental data. The previously considered approximation of one constant cross section for all hadrons is justified. It's found that the bulk viscosity of the hadron gas is much larger than the bulk viscosity of the pion gas while the shear viscosity is found to be less sensitive to the hadronic mass spectrum. The maximum of the bulk viscosity of the hadron gas is expected to be approximately in the temperature range ${T=150 190 MeV}$ with zero chemical potentials. This range covers the critical temperature values found from lattice calculations. We comment on some important aspects of calculations of the bulk viscosity, which were not taken into account or were not analyzed well previously. Doing this, a generalized Chapman-Enskog procedure, taking into account deviations from the chemical equilibrium, is outlined. Some general properties, features, the physical meaning of the bulk viscosity and some other comments on the deviations from the chemical equilibrium supplement this discussion. Analytical closed-form expressions for the transport coefficients and some related quantities within a quite large class of cross sections can be obtained. Some examples are explicitly considered. Comparisons with some previous calculations of the viscosities in the hadron gas and the pion gas are done.

Oleg Moroz

2013-01-28T23:59:59.000Z

234

Small- and Medium-Sized Reactors  

NLE Websites -- All DOE Office Websites (Extended Search)

to essentially the same concept. As defined by the IAEA, a small reactor has an output electrical power of 300 MWe or less while a medium-sized reactor has an electrical power...

235

Special light trajectories in optical medium  

E-Print Network (OSTI)

The Fermat principle is used to define trajectories in nonhomogenous optical media. The Poincare model of the Lobachevskii geometry is derived. The index of refraction is determined for the light confined in the circular trajectory in the optical medium.

Miroslav Pardy

2010-08-12T23:59:59.000Z

236

Enhanced Remedial Amendment Delivery through Fluid Viscosity Modifications: Experiments and numerical simulations  

SciTech Connect

Abstract Heterogeneity is often encountered in subsurface contamination characterization and remediation. Low-permeability zones are typically bypassed when remedial fluids are injected into subsurface heterogeneous aquifer systems. Therefore, contaminants in the bypassed areas may not be contacted by the amendments in the remedial fluid, which may significantly prolong the remediation operations. Laboratory experiments and numerical studies have been conducted to develop the Mobility-Controlled Flood (MCF) technology for subsurface remediation and to demonstrate the capability of this technology in enhancing the remedial amendments delivery to the lower permeability zones in heterogeneous systems. Xanthan gum, a bio-polymer, was used to modify the viscosity of the amendment-containing remedial solutions. Sodium mono-phosphate and surfactant were the remedial amendment used in this work. The enhanced delivery of the amendments was demonstrated in two-dimensional (2-D) flow cell experiments, packed with heterogeneous systems. The impact of polymer concentration, fluid injection rate, and permeability contract in the heterogeneous systems has been studied. The Subsurface Transport over Multiple Phases (STOMP) simulator was modified to include polymer-induced shear thinning effects. Shear rates of polymer solutions were computed from pore-water velocities using a relationship proposed in the literature. Viscosity data were subsequently obtained from empirical viscosity-shear rate relationships derived from laboratory data. The experimental and simulation results clearly show that the MCF technology is capable of enhancing the delivery of remedial amendments to subsurface lower permeability zones. The enhanced delivery significantly improved the NAPL removal from these zones and the sweeping efficiency on a heterogeneous system was remarkably increased when a polymer fluid was applied. MCF technology is also able to stabilize the fluid displacing front when there is a density difference between the fluids. The modified STOMP simulator was able to predict the experimental observed fluid displacing behavior. The simulator may be used to predict the subsurface remediation performance when a shear thinning fluid is used to remediate a heterogeneous system.

Zhong, Lirong; Oostrom, Martinus; Wietsma, Thomas W.; Covert, Matthew A.

2008-07-29T23:59:59.000Z

237

U.S. NAVY STRUCTURES. ANNEX 3.2 OF SCIENTIFIC DIRECTOR'S REPORT OF ATOMIC WEAPON TESTS AT ENIWETOK, 1951  

SciTech Connect

Structures are subjected to a 50-kt blast, in order to obtain fundamental data on structures subjected to blast loading, to observe the response of the structures under this loading, and to determine the relative blast-resistance merits of several structural types. Modes of failure are determined. Shaped structures are found to be superdor to rectangular structures. Earth cover for the structures is also found to increase the blast resistance. It is found that standard Navy heavy bomb-proof structures with modifications can withstand a near-surface atomic burst at ground zero. (T.F.H.)

Hayen, C.L.

1952-06-01T23:59:59.000Z

238

Design calculation procedure for passive solar houses at Navy installations in regions with cold climate. Volume I. Preliminary report, April 1980-September 1981  

SciTech Connect

A 'worksheet' approach is used in that the user may work through an example passive solar design by following the text in the report. Included are tables for heating degree days, solar heat gains, building R factors, orientation factors, roof overhang designs, etc. Performance is calculated on a monthly basis. The reports are presented for five geographical regions with content and text format similar, differing only in the appropriate regional factors. Appropriate designs are given for Navy installations in regions with cold climate.

Lumsdaine, M.; Lumsdaine, E.

1981-10-01T23:59:59.000Z

239

Asymptotic Behavior of a Viscous Liquid-Gas Model with Mass-Dependent Viscosity and Vacuum  

E-Print Network (OSTI)

In this paper, we consider two classes of free boundary value problems of a viscous two-phase liquid-gas model relevant to the flow in wells and pipelines with mass-dependent viscosity coefficient. The liquid is treated as an incompressible fluid whereas the gas is assumed to be polytropic. We obtain the asymptotic behavior and decay rates of the mass functions $n(x,t)$,\\$m(x,t)$ when the initial masses are assumed to be connected to vacuum both discontinuously and continuously, which improves the corresponding result about Navier-Stokes equations in \\cite{Zhu}.

liu, Qingqing

2011-01-01T23:59:59.000Z

240

A Brief Review of Viscosity Models for Slag in Coal Gasification  

Science Conference Proceedings (OSTI)

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.

Massoudi, Mehrdad; Wang, Ping

2011-11-01T23:59:59.000Z

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


241

Ethanol production using a soy hydrolysate-based medium or a yeast autolysate-based medium  

DOE Patents (OSTI)

This invention presents a method for the production of ethanol that utilizes a soy hydrolysate-based nutrient medium or a yeast autolysate-based medium nutrient medium in conjunction with ethanologenic bacteria and a fermentable sugar for the cost-effective production of ethanol from lignocellulosic biomass. The invention offers several advantages over presently available media for use in ethanol production, including consistent quality, lack of toxins and wide availability.

Ingram, Lonnie O. (Gainesville, FL)

2000-01-01T23:59:59.000Z

242

Thermal radiation from an expanding viscous medium  

E-Print Network (OSTI)

The effects of viscosity on the space time evolution of QGP produced in nuclear collisions at RHIC energies have been studied. The entropy generated due to the viscous motion of the fluid has been taken into account in constraining the initial temperature by the final multiplicity (measured at the freeze-out point). The viscous effects on the photon spectra has been introduced consistently through the evolution dynamics and phase space factors of the particles participating in the production process. We notice a stronger effect on the photon spectra originating from QGP than hadronic matter. A detectable shift is observed in the space-time integrated p_T distribution of photons due to dissipative effects.

Sukanya Mitra; Payal Mohanty; Sourav Sarkar; Jan-e Alam

2011-07-13T23:59:59.000Z

243

Category:MediumOffice | Open Energy Information  

Open Energy Info (EERE)

MediumOffice MediumOffice Jump to: navigation, search Go Back to PV Economics By Building Type Media in category "MediumOffice" The following 77 files are in this category, out of 77 total. SVMediumOffice Bismarck ND Montana-Dakota Utilities Co (North Dakota).png SVMediumOffice Bismarc... 72 KB SVMediumOffice Cedar City UT Moon Lake Electric Assn Inc (Utah).png SVMediumOffice Cedar C... 62 KB SVMediumOffice International Falls MN Northern States Power Co (Minnesota) Excel Energy.png SVMediumOffice Interna... 83 KB SVMediumOffice LA CA City of Los Angeles California (Utility Company).png SVMediumOffice LA CA C... 87 KB SVMediumOffice Memphis TN City of Memphis Tennessee (Utility Company).png SVMediumOffice Memphis... 65 KB SVMediumOffice Minneapolis MN Northern States Power Co (Minnesota) Excel Energy.png

244

Georgia Power - Small and Medium Scale Advanced Solar Initiative...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Small and Medium Scale Advanced Solar Initiative (GPASI) (Georgia) Georgia Power - Small and Medium Scale Advanced Solar Initiative (GPASI) (Georgia) Eligibility Agricultural...

245

Training Manual for Micro, Small and Medium Entrepreneurs in...  

Open Energy Info (EERE)

Training Manual for Micro, Small and Medium Entrepreneurs in Energy Business Financing Jump to: navigation, search Tool Summary Name: Training Manual for Micro, Small and Medium...

246

Solar collector having a solid transmission medium  

DOE Patents (OSTI)

There is provided a radiant energy transmission device capable of operation in a concentrative mode in which energy incident on an entrance area is directed toward and concentrated on an exit area of smaller area than the entrance area. The device includes a solid radiant energy transmission medium having surfaces coincident with the entrance and exit areas and particularly contoured reflective side walls. The surface coinciding with the entrance area is coupled to a cover plate formed of a radiant energy transmissive material. An energy transducer is coupled to the surface of the medium coinciding with the exit area.

Schertz, William W. (Batavia, IL); Zwerdling, Solomon (Woodridge, IL)

1977-06-14T23:59:59.000Z

247

Virtual worlds as a medium for advertising  

Science Conference Proceedings (OSTI)

Online virtual worlds, such as Second Life, are rapidly becoming recognized as a technology of substantial future importance for marketers and advertisers. Many of these virtual worlds provide the potential medium for very rich and varied new and enhanced ... Keywords: MMOG, advertising, marketing, online game, second life, virtual world

Stuart Barnes

2007-10-01T23:59:59.000Z

248

Medium energy heavy ion operations at RHIC  

Science Conference Proceedings (OSTI)

As part of the search for a phase transition or critical point on the QCD phase diagram, an energy scan including 5 different energy settings was performed during the 2010 RHIC heavy ion run. While the top beam energy for heavy ions is at 100 GeV/n and the lowest achieved energy setpoint was significantly below RHICs injection energy of approximately 10 GeV/n, we also provided beams for data taking in a medium energy range above injection energy and below top beam energy. This paper reviews RHIC experience and challenges for RHIC medium energy operations that produced full experimental data sets at beam energies of 31.2 GeV/n and 19.5 GeV/n. The medium energy AuAu run covered two beam energies, both above the RHIC injection energy of 9.8 GeV but well below the standard store energy of 100 GeV (see table 1). The low energy and full energy runs with heavy ions in FY10 are summarized in [1] and [2]. Stochastic Cooling ([3]) was only used for 100 GeV beams and not used in the medium energy run. The efficiency of the transition from 100 GeV operation to 31.2 GeV and then to 19.5 GeV was remarkable. Setup took 32 h and 19 h respectively for the two energy settings. The time in store, defined to be the percentage of time RHIC provides beams in physics conditions versus calendar time, was approximately 52% for the entire FY10 heavy ion run. In both medium energy runs it was well above this average, 68% for 31.5 GeV and 82% for 19.5 GeV. For both energies RHIC was filled with 111 bunches with 1.2 10{sup 9} and 1.3 10{sup 9} ions per bunch respectively.

Drees, K.A.; Ahrens, L.; Bai, M.; Beebe-Wang, J.; Blackler, I.M.C.; Blaskiewicz, M.; Brown, K.A.; Brennan, M.; Bruno, D.; Butler, J.; Carlson, C.; Connolly, R.; D'Ottavio, T.; Fischer, W.; Fu, W.; Gassner, D.; Harvey, M.; Hayes, T.; Huang, H.; Hulsart, R.; Ingrassia, P.; Kling, N.; Lafky, M.; Laster, J.; Lee, R.C.; Litvinenko, V.; Luo, Y.; MacKay, W.W.; Marr, G.; Mapes. M.; Marusic, A.; Mernick, K.; Michnoff, R.; Minty, M.; Montag, C.; Morris, J.; Naylor, C.; Nemesure, S.; Pilat, F.; Ptitsyn, V.; Robert-Demolaize, G.; Roser, T.; Sampson, P.; Satogata, T.; Schoefer, V.; Schultheiss, C.; Severino, F.; Shrey, T.; Smith, K.S.; Tepikian, S.; Thieberger, P.; Trbojevic, D.; Tsoupas, N.; Tuozzolo, J.; van Kuik, B.; Wilinski, M.; Zaltsman, A.; Zeno, K.; Zhang, S.Y.

2011-03-28T23:59:59.000Z

249

Effects of Measurement Materials and Oxygen Partial Pressure on the Viscosity of synthetic Eastern and Western United States Coal Slags  

Science Conference Proceedings (OSTI)

The viscosity of the molten ash (slag) resulting from the mineral constituents in carbon feedstock used in slagging gasifiers is critical for controlling the gasification process. The viscosity of two synthetic slags with compositions resembling the mineral impurities in average eastern and western coal feedstock was examined at temperatures from 13001500 C using a rotating bob viscometer. A few combinations of atmospheres and experimental materials were investigated with respect to one another to determine slag viscosity. A CO/CO{sub 2} atmosphere (CO/CO{sub 2} = 1.8, corresponding to a P{sub O{sub 2}} = 108 atm) is required to sustain ferrous ions in FeO-containing slags, an environment that is oxidizing to most metals. Iron oxide in the slag prevents usage of Fe parts. In unpurified Ar, the Fe metal surface oxidizes. Using purified argon prevents iron measurement components from oxidation; however, the metallic surfaces act as nucleation sites for the reduction of the Fe oxide in the slag into metallic Fe. Dissolution of ceramic materials into the slag, including Al{sub 2}O{sub 3} and ZrO{sub 2}, occurs in both atmospheres. Therefore, evaluating slag properties in the laboratory is challenging. The measured viscosities of two synthetic slags in this study diverged depending upon material selection. This difference is likely attributable to container/spindle-slag interactions. Viscosity measurements of the eastern coal slag using all ceramic parts agreed best with FactSage prediction above 1350 C, with an average activation energy of 271.2 kJ. For western coal slag, the dissolution of container/spindle materials was substantial during the measurement, with precipitation of crystalline phase noted. The experimental viscosity data of the western coal slag agreed best with Kalmanovitch prediction above 1350 C. The activation energy changed dramatically for both data sets of western coal slag, likely indicating the Newtonian-to-non-Newtonian transition.

Zhu, Jingxi; Tetsuya, Kenneth; Mu, Haoyuan; Bennett, James P.; Sridhar, Seetharaman

2012-07-01T23:59:59.000Z

250

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

E-Print Network (OSTI)

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.

Nakshatrala, K B

2009-01-01T23:59:59.000Z

251

Shear viscosity to entropy density ratio of a relativistic Hagedorn resonance gas  

E-Print Network (OSTI)

The new state of matter produced at Relativistic Heavy Ion Collider reveals a strongly coupled quark-gluon plasma with an extremely small shear viscosity to entropy density ratio eta/s. We calculate the eta/s of an equilibrated hadron matter characterized by a relativistic hadron resonance gas with a Hagedorn mass spectrum that grows exponentially with the hadron mass. We find with increase in temperature of the system the eta/s value decreases due to rapid increase in the multiplicity of massive resonances. In the vicinity of the critical temperature for deconfinement transition, the minimum value of eta/s in the Hagedorn resonance gas is found to be consistent with the current estimates for a strongly coupled quark-gluon plasma.

Subrata Pal

2010-01-11T23:59:59.000Z

252

Method and apparatus for measuring shear modulus and viscosity of a monomolecular film  

DOE Patents (OSTI)

Apparatus for measuring the shear modulus of a monomolecular film comprises a circular trough having inwardly sloping sides containing a liquid for supporting the monolayer on the surface thereof; a circular rotor suspended above the trough such that the lower surface of the rotor contacts the surface of the liquid, positioned such that the axis of the rotor is concentric with the axis of the trough and freely rotable about its axis; means for hydrostatically compressing the monolayer in the annular region formed between the rotor and the sides of the trough; and means for rotating the trough about its axis. Preferably, hydrostatic compression of the monolayer is achieved by removing liquid from the bottom of the trough (decreasing the surface area) while raising the trough vertically along its axis to maintain the monolayer at a constant elevation (and maintain rotor contact). In order to measure viscosity, a means for rotating the rotor about its axis is added to the apparatus.

Abraham, B.M.; Miyano, K.; Ketterson, J.B.

1983-10-18T23:59:59.000Z

253

Method and apparatus for measuring shear modulus and viscosity of a monomolecular film  

DOE Patents (OSTI)

Instrument for measuring the shear modulus of a monomolecular film comprises a circular trough having inwardly sloping sides containing a liquid for supporting the monolayer on the surface thereof; a circular rotor suspended above the trough such that the lower surface of the rotor contacts the surface of the liquid, positioned such that the axis of the rotor is concentric with the axis of the trough and freely rotable about its axis; apparatus for hydrostatically compressing the monolayer in the annular region formed between the rotor and the sides of the trough; and apparatus for rotating the trough about its axis. Preferably, hydrostatic compression of the monolayer is achieved by removing liquid from the bottom of the trough (decreasing the surface area) while raising the trough vertically along its axis to maintain the monolayer at a constant elevation (and maintain rotor contact). In order to measure viscosity, a apparatus for rotating the rotor about its axis is added to the apparatus.

Abraham, Bernard M. (Oak Park, IL); Miyano, Kenjiro (Sendai, JP); Ketterson, John B. (Evanston, IL)

1985-01-01T23:59:59.000Z

254

Intrinsic aging and effective viscosity in the slow dynamics of a soft glass with tunable elasticity  

E-Print Network (OSTI)

We investigate by rheology and light scattering the influence of the elastic modulus, $G_0$, on the slow dynamics and the aging of a soft glass. We show that the slow dynamics and the aging can be entirely described by the evolution of an effective viscosity, $\\eta_{eff}$, defined as the characteristic time measured in a stress relaxation experiment times $G_0$. At all time, $\\eta_{eff}$ is found to be independent of $G_0$, of elastic perturbations, and of the rate at which the sample is quenched in the glassy phase. We propose a simple model that links $\\eta_{eff}$ to the internal stress built up at the fluid-to-solid transition.

Laurence Ramos; Luca Cipelletti

2004-11-03T23:59:59.000Z

255

Numerical Verification of Bounce Harmonic Resonances in Neoclassical Toroidal Viscosity for Tokamaks  

SciTech Connect

This Letter presents the rst numerical veri cation for the bounce-harmonic (BH) resonance phenomena of the neoclassical transport in a tokamak perturbed by non-axisymmetric magnetic elds. The BH resonances were predicted by analytic theories of neoclassical toroidal viscosity (NTV), as the parallel and perpendicular drift motions can be resonant and result in a great enhancement of the radial momentum transport. A new drift-kinetic #14;f guiding-center particle code, POCA, clearly veri ed that the perpendicular drift motions can reduce the transport by phase-mixing, but in the BH resonances the motions can form closed orbits and particles radially drift out fast. The POCA calculations on resulting NTV torque are largely consistent with analytic calculations, and show that the BH resonances can easily dominate the NTV torque when a plasma rotates in the perturbed tokamak and therefore is a critical physics for predicting the rotation and stability in ITER. __________________________________________________

Kimin Kim, Jong-Kyu Park and Allen H. Boozer

2013-04-17T23:59:59.000Z

256

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

Science Conference Proceedings (OSTI)

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.

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

2012-07-31T23:59:59.000Z

257

Advanced Vehicle Testing Activity: Medium- and Heavy-Duty Vehicles  

NLE Websites -- All DOE Office Websites (Extended Search)

Medium- and Medium- and Heavy-Duty Vehicles to someone by E-mail Share Advanced Vehicle Testing Activity: Medium- and Heavy-Duty Vehicles on Facebook Tweet about Advanced Vehicle Testing Activity: Medium- and Heavy-Duty Vehicles on Twitter Bookmark Advanced Vehicle Testing Activity: Medium- and Heavy-Duty Vehicles on Google Bookmark Advanced Vehicle Testing Activity: Medium- and Heavy-Duty Vehicles on Delicious Rank Advanced Vehicle Testing Activity: Medium- and Heavy-Duty Vehicles on Digg Find More places to share Advanced Vehicle Testing Activity: Medium- and Heavy-Duty Vehicles on AddThis.com... Home Overview Light-Duty Vehicles Medium- and Heavy-Duty Vehicles Transit Vehicles Trucks Idle Reduction Oil Bypass Filter Airport Ground Support Equipment Medium and Heavy Duty Hybrid Electric Vehicles

258

JC3 Medium Impact Assessment Bulletins  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

medium-impact-assessment-bulletins medium-impact-assessment-bulletins Office of the Chief Information Officer 1000 Independence Ave., SW Washington, DC 202-586-0166 en V-237: TYPO3 Security Bypass Vulnerabilities http://energy.gov/cio/articles/v-237-typo3-security-bypass-vulnerabilities V-237: TYPO3 Security Bypass Vulnerabilities

259

The Physics of the Intergalactic Medium  

E-Print Network (OSTI)

Intergalactic space is filled with a pervasive medium of ionized gas, the Intergalactic Medium (IGM). A residual neutral fraction is detected in the spectra of Quasi-Stellar Objects at both low and high redshifts, revealing a highly fluctuating medium with temperatures characteristic of photoionized gas. The statistics of the fluctuations are well-reproduced by numerical gravity-hydrodynamics simulations within the context of standard cosmological structure formation scenarios. As such, the study of the IGM offers an opportunity to probe the nature of the primordial density fluctuations on scales unavailable to other methods. The simulations also suggest the IGM is the dominant reservoir of baryons produced by the Big Bang, and so the principal source of the matter from which galaxies formed. The detection of metal systems within the IGM shows that it was enriched by evolved stars early in its history, demonstrating an intimate connection between galaxy formation and the IGM. The author presents a comprehensive review of the current understanding of the structure and physical properties of the IGM and its relation to galaxies, concluding with comments on prospects for furthering the study of the IGM using future ground-based facilities and space-based experiments.

Avery A. Meiksin

2007-11-21T23:59:59.000Z

260

GF5 / ROBO Test or ASTM Sequence IIIGA Test, ASTM D7528 Aged Oil LowTemperature Viscosity  

E-Print Network (OSTI)

GF5 / ROBO Test or ASTM Sequence IIIGA Test, ASTM D7528 Aged Oil LowTemperature Viscosity SPECIFICATIONS PROCEDURE PARAMETERS The ROBO test is a proposed test for performance category GF.5, ASTM D7528. The ASTM Sequence IIIGA Test, ASTM D7320 may be run instead of the above. A total

Chapman, Clark R.

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261

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

E-Print Network (OSTI)

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.

Vaquero, J M

2014-01-01T23:59:59.000Z

262

Alternative Fuels Data Center: Medium-Duty Vehicle Idle Reduction  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

Medium-Duty Vehicle Medium-Duty Vehicle Idle Reduction Strategies to someone by E-mail Share Alternative Fuels Data Center: Medium-Duty Vehicle Idle Reduction Strategies on Facebook Tweet about Alternative Fuels Data Center: Medium-Duty Vehicle Idle Reduction Strategies on Twitter Bookmark Alternative Fuels Data Center: Medium-Duty Vehicle Idle Reduction Strategies on Google Bookmark Alternative Fuels Data Center: Medium-Duty Vehicle Idle Reduction Strategies on Delicious Rank Alternative Fuels Data Center: Medium-Duty Vehicle Idle Reduction Strategies on Digg Find More places to share Alternative Fuels Data Center: Medium-Duty Vehicle Idle Reduction Strategies on AddThis.com... More in this section... Idle Reduction Benefits & Considerations Heavy-Duty Vehicles Medium-Duty Vehicles

263

METHOD OF OPPOSING IRRADIATION-INDUCED VISCOSITY INCREASE IN EMPLOYMENT OF ORGANIC FLUIDS  

DOE Patents (OSTI)

A method is described for conducting mechanical operations necessitating the use of a lubricant in a medium operaject to reactor irradiation of 0.5 x 10/ sup 12/ to 1 x 10/sup 12/ neut rons/ cm/sup 2//sec. A thiopolyether lubricant such as 16, 19-dioxa-13, 22-dithiatetratriacontane is used. (AEC)

Balt, R.O.

1961-10-24T23:59:59.000Z

264

Chiral Restoration in the Nuclear Medium  

SciTech Connect

The photoproduction of vector mesons on various nuclei has been studied using the CLAS detector at Jefferson Laboratory. The vector mesons, rho, omega, and [cursive phi], are observed via their decay to e+e?, in order to reduce the effects of final state interactions in the nucleus. Of particular interest are possible in-medium effects on the properties of the rho meson. The rho mass spectrum is extracted from the data on various nuclei, D2, C, Fe, and Ti. We observe no significant mass shift and some broadening consistent with expected collisional broadening for the rho meson.

C. Djalali; R. Nasseripour; D. P. Weygand; M. H. Wood

2007-10-01T23:59:59.000Z

265

Nuclear medium effects from hadronic atoms  

E-Print Network (OSTI)

The state of the art in the study of pionic, kaonic and Sigmionic atoms, along with the in-medium nuclear interactions deduced for these hadrons, is reviewed. A special emphasis is placed on recent developments in antikaon-nuclear physics, where a strongly attractive density dependent antikaon-nuclear potential of order 150-200 MeV in nuclear matter emerges by fitting K^- atom data. This has interesting repercussions on antikaon quasibound nuclear states, on the composition of strange hadronic matter and on kaon condensation in self bound hadronic systems.

Friedman, E

2011-01-01T23:59:59.000Z

266

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

SciTech Connect

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.

Roar Skartlien; Espen Sollum; Andreas Akselsen; Paul Meakin

2012-07-01T23:59:59.000Z

267

Calculation of Neoclassical Toroidal Viscosity with a Particle Simulation in the Tokamak Magnetic Breaking Experiments  

SciTech Connect

Accurate calculation of perturbed distribution function #14;?f and perturbed magnetic fi eld #14;?B is essential to achieve prediction of non-ambipolar transport and neoclassical toroidal viscosity (NTV) in perturbed tokamaks. This paper reports a study of the NTV with a #14;?f particle code (POCA) and improved understanding of magnetic braking in tokamak experiments. POCA calculates the NTV by computing #14;f with guiding-center orbit motion and using #14;B from the ideal perturbed equilibrium code (IPEC). POCA simulations are compared with experimental estimations for NTV, which are measured from angular momentum balance (DIII-D) and toroidal rotational damping rate (NSTX). The calculation shows good agreement in total NTV torque for the DIII-D discharge, where an analytic neoclassical theory also gives a consistent result thanks to relatively large aspect-ratio and slow toroidal rotations. In NSTX discharges, where the aspect-ratio is small and the rotation is fast, the theory only gives a qualitative guide for predicting NTV. However, the POCA simulation largely improves the quantitative NTV prediction for NSTX. It is discussed that a self- consistent calculation of ?#14;B using general perturbed equilibria is eventually necessary since a non-ideal plasma response can change the perturbed eld and thereby the NTV torque.

Kimin Kim, et al

2013-04-23T23:59:59.000Z

268

Neutrino Propagation in a Strongly Magnetized Medium  

E-Print Network (OSTI)

We derive general expressions at the one-loop level for the coefficients of the covariant structure of the neutrino self-energy in the presence of a constant magnetic field. The neutrino energy spectrum and index of refraction are obtained for neutral and charged media in the strong-field limit ($M_{W}\\gg \\sqrt{B}\\gg m_{e},T,\\mu ,| \\mathbf{p}| $) using the lowest Landau level approximation. The results found within the lowest Landau level approximation are numerically validated, summing in all Landau levels, for strong $B\\gg T^{2}$ and weakly-strong $B \\gtrsim T^{2}$ fields. The neutrino energy in leading order of the Fermi coupling constant is expressed as the sum of three terms: a kinetic-energy term, a term of interaction between the magnetic field and an induced neutrino magnetic moment, and a rest-energy term. The leading radiative correction to the kinetic-energy term depends linearly on the magnetic field strength and is independent of the chemical potential. The other two terms are only present in a charged medium. For strong and weakly-strong fields, it is found that the field-dependent correction to the neutrino energy in a neutral medium is much larger than the thermal one. Possible applications to cosmology and astrophysics are considered.

E. Elizalde; E. J. Ferrer; V. de la Incera

2004-04-26T23:59:59.000Z

269

Plutonium Management in the Medium Term  

SciTech Connect

For many years various countries with access to commercial reprocessing services have been routinely recycling plutonium as UO{sub 2}/PuO{sub 2} mixed oxide (MOX) fuel in light water reactors (LWRs). This LWR MOX recycle strategy is still widely regarded as an interim step leading to the eventual establishment of sustainable fast reactor fuel cycles. The OECD/NEA Working Party on the Physics of Plutonium Fuels and Innovative Fuel Cycles (WPPR) has recently completed a review of the technical options for plutonium management in what it refers to as the 'medium term'. For the purpose of the review, the WPPR considers the medium term to cover the period from now up to the point at which fast reactor fuel cycles are established on a commercial scale. The review identified a number of different designs of innovative plutonium fuel assemblies intended to be used in current LWR cores, in LWRs with significantly different moderation properties, as well as in high-temperature gas reactors. The full review report describes these various options and highlights their respective advantages and disadvantages. This paper briefly summarizes the main findings of the review.

Hesketh, Kevin [BNFL Nuclear Sciences and Technology Services (United Kingdom); Schlosser, Gerhard; Porsch, Dieter F. [Framatome ANP (France); Wolf, Timm [Framatome ANP (France); Koeberl, Oliver [CEA Cadarache (France); Lance, Benoit [Belgonucleaire (Belgium); Chawla, Rakesh [Paul Scherrer Institut (Switzerland); Gehin, Jess C. [Oak Ridge National Laboratory (United States); Ellis, Ron [Oak Ridge National Laboratory (United States); Uchikawa, Sadao [Japan Atomic Energy Research Institute (Japan); Sato, Osamu [Japan Atomic Energy Research Institute (Japan); Okubo, Tsutomu [Japan Atomic Energy Research Institute (Japan); Mineo, Hideaki [Japan Atomic Energy Research Institute (Japan); Yamamoto, Toru [Nuclear Power Engineering Corporation (Japan); Sagayama, Yutaka [Japan Nuclear Cycle Development Institute (Japan); Sartori, Enrico [Organization for Economic Cooperation and Development (France)

2004-12-15T23:59:59.000Z

270

Casimir force in the presence of a medium  

SciTech Connect

We investigate the Casimir effect in the presence of a medium by quantizing the electromagnetic field in the presence of a magnetodielectric medium using the path-integral technique. For a given medium with definite electric and magnetic susceptibilities, explicit expressions for the Casimir force are obtained. The Lifshitz formula is recovered and in the absence of a medium the results tend to the original Casimir force between two conducting parallel plates immersed in the quantum electromagnetic vacuum.

Kheirandish, Fardin; Soltani, Morteza; Sarabadani, Jalal [Department of Physics, University of Isfahan, Isfahan 81746, Iran and Quantum Optics Research Group, University of Isfahan, Hezar Jarib Avenue, Isfahan 81746 (Iran, Islamic Republic of); Department of Physics, University of Isfahan, Isfahan 81746 (Iran, Islamic Republic of)

2010-05-15T23:59:59.000Z

271

Lead iron phosphate glass as a containment medium for disposal of high-level nuclear waste  

DOE Patents (OSTI)

Lead-iron phosphate glasses containing a high level of Fe.sub.2 O.sub.3 for use as a storage medium for high-level radioactive nuclear waste. By combining lead-iron phosphate glass with various types of simulated high-level nuclear waste, a highly corrosion resistant, homogeneous, easily processed glass can be formed. For corroding solutions at 90.degree. C., with solution pH values in the range between 5 and 9, the corrosion rate of the lead-iron phosphate nuclear waste glass is at least 10.sup.2 to 10.sup.3 times lower than the corrosion rate of a comparable borosilicate nuclear waste glass. The presence of Fe.sub.2 O.sub.3 in forming the lead-iron phosphate glass is critical. Lead-iron phosphate nuclear waste glass can be prepared at temperatures as low as 800.degree. C., since they exhibit very low melt viscosities in the 800.degree. to 1050.degree. C. temperature range. These waste-loaded glasses do not readily devitrify at temperatures as high as 550.degree. C. and are not adversely affected by large doses of gamma radiation in H.sub.2 O at 135.degree. C. The lead-iron phosphate waste glasses can be prepared with minimal modification of the technology developed for processing borosilicate glass nuclear wasteforms.

Boatner, Lynn A. (Oak Ridge, TN); Sales, Brian C. (Oak Ridge, TN)

1989-01-01T23:59:59.000Z

272

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

DOE Green Energy (OSTI)

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.

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

1980-11-01T23:59:59.000Z

273

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

E-Print Network (OSTI)

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...

De Loubens, Clment; Doyennette, Marion; Trla, Ioan Cristian; Souchon, Isabelle

2013-01-01T23:59:59.000Z

274

Medium energy charged particle data for evaluation  

SciTech Connect

Medium energy charged particles incident on targets can cause a variety of nuclear reactions. Charged particle transport calculations require access to a large body of cross-section data which results in interest in an evaluated charge particle data library. Developing an evaluated data library can involve several steps. An index to the literature on measurements and theory is useful to locate information relevant to data evaluation. A computerized compilation of measurements facilitates the intercomparison of different experiments and the determination of how well data are known. Nuclear models, based on theory or phenonological evidence, are compared with experiment and where validated, are used to fill in regions where experimental data are not available. Finally, the selected data is placed into computer readable formats for use in transport calculations. 16 refs.

Pearlstein, S.

1989-01-01T23:59:59.000Z

275

Turbulence in the Molecular Interstellar Medium  

E-Print Network (OSTI)

Abstract. The observational record of turbulence within the molecular gas phase of the interstellar medium is summarized. We briefly review the analysis methods used to recover the velocity structure function from spectroscopic imaging and the application of these tools on sets of cloud data. These studies identify a near-invariant velocity structure function that is independent of local the environment and star formation activity. Such universality accounts for the cloud-to-cloud scaling law between the global line-width and size of molecular clouds found by Larson (1981) and constrains the degree to which supersonic turbulence can regulate star formation. In addition, the evidence for large scale driving sources necessary to sustain supersonic flows is summarized.

Mark H. Heyer; Chris Brunt

2006-01-01T23:59:59.000Z

276

Reference Data for the Density and Viscosity of Liquid Cadmium, Cobalt, Gallium, Indium, Mercury, Silicon, Thallium, and Zinc  

Science Conference Proceedings (OSTI)

The available experimental data for the density and viscosity of liquid cadmium, cobalt, gallium, indium, mercury, silicon, thallium, and zinc have been critically examined with the intention of establishing both a density and a viscosity standard. All experimental data have been categorized into primary and secondary data according to the quality of measurement, the technique employed and the presentation of the data, as specified by a series of criteria. The proposed standard reference correlations for the density of liquid cadmium, cobalt, gallium, indium, silicon, thallium, and zinc are characterized by percent deviations at the 95% confidence level of 0.6, 2.1, 0.4, 0.5, 2.2, 0.9, and 0.7, respectively. In the case of mercury, since density reference values already exist, no further work was carried out. The standard reference correlations for the viscosity of liquid cadmium, cobalt, gallium, indium, mercury, silicon, thallium, and zinc are characterized by percent deviations at the 95% confidence level of 9.4, 14.0, 13.5, 2.1, 7.3, 15.7, 5.1, and 9.3, respectively.

Assael, Marc J.; Armyra, Ivi J.; Brillo, Juergen; Stankus, Sergei V.; Wu Jiangtao; Wakeham, William A. [Chemical Engineering Department, Aristotle University, 54124 Thessaloniki (Greece); Institut fuer Materialphysik im Weltraum, Deutsches Zentrum fuer Luft- und Raumfahrt, 51170 Koeln (Germany); Kutateladze Institute of Thermophysics, Siberian Brunch of the Russian Academy of Sciences, Lavrentyev ave. 1, 630090 Novosibirsk (Russian Federation); Center of Thermal and Fluid Science, School of Energy and Power Engineering, Xi'an Jiaotong University, Shaanxi 710049 (China); Chemical Engineering Department, Imperial College, London SW7 2BY (United Kingdom)

2012-09-15T23:59:59.000Z

277

Alternative Fuels Data Center: Medium-Speed and Neighborhood Electric  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

Medium-Speed and Medium-Speed and Neighborhood Electric Vehicle (NEV) Definition and Access to Roadways to someone by E-mail Share Alternative Fuels Data Center: Medium-Speed and Neighborhood Electric Vehicle (NEV) Definition and Access to Roadways on Facebook Tweet about Alternative Fuels Data Center: Medium-Speed and Neighborhood Electric Vehicle (NEV) Definition and Access to Roadways on Twitter Bookmark Alternative Fuels Data Center: Medium-Speed and Neighborhood Electric Vehicle (NEV) Definition and Access to Roadways on Google Bookmark Alternative Fuels Data Center: Medium-Speed and Neighborhood Electric Vehicle (NEV) Definition and Access to Roadways on Delicious Rank Alternative Fuels Data Center: Medium-Speed and Neighborhood Electric Vehicle (NEV) Definition and Access to Roadways on Digg

278

Building Technologies Office: Small- and Medium-Sized Building Automation  

NLE Websites -- All DOE Office Websites (Extended Search)

Small- and Medium-Sized Small- and Medium-Sized Building Automation and Control System Needs: Scoping Study Research Project to someone by E-mail Share Building Technologies Office: Small- and Medium-Sized Building Automation and Control System Needs: Scoping Study Research Project on Facebook Tweet about Building Technologies Office: Small- and Medium-Sized Building Automation and Control System Needs: Scoping Study Research Project on Twitter Bookmark Building Technologies Office: Small- and Medium-Sized Building Automation and Control System Needs: Scoping Study Research Project on Google Bookmark Building Technologies Office: Small- and Medium-Sized Building Automation and Control System Needs: Scoping Study Research Project on Delicious Rank Building Technologies Office: Small- and Medium-Sized Building

279

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

E-Print Network (OSTI)

A global steady increase of energy consumption coupled with the decline of conventional oil resources points to a more aggressive exploitation of heavy oil. Heavy oil is a major source of energy in this century with a worldwide base reserve 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 in performing reliable modeling studies of fluid flow in the reservoir. We simulated cyclic steam injections on the highly viscous Hamaca oil, with a viscosity of over 10,000 cp at ambient temperature, and the production was drastically impacted by up to an order of magnitude when using improper mixing rules to describe the oil viscosity. This thesis demonstrates the importance of these mixing rules and alerts reservoir engineers to the significance of using different options simulators have built in their platforms to describe the viscosity of heavy oils. Log linear and power mixing rules do not provide enough flexibility to describe the viscosity of extra heavy oil with temperature. A recently implemented mixing rule in a commercial simulator has been studied providing satisfactory results. However, the methodology requires substantial interventions, and cannot be automatically updated. We provide guidelines to improve it and suggest more flexible mixing rules that could easily be implemented in commercial simulators. We also provide a methodology to determine the adequate time for each one of the periods in cyclic steam injection: injection, soaking and production. There is a lot of speculation in this matter and one of the objectives of this thesis is to better understand and provide guidelines to optimize oil production using proper lengths in each one of these periods. We have found that the production and injection periods should be similar in time length. Nevertheless, the production period should not be less than the injection period. On the other hand, the soaking period should be as short as possible because it is unproductive time in terms of field oil production for the well and therefore it translates into a negative cash flow for a company.

Mago, Alonso Luis

2003-05-01T23:59:59.000Z

280

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

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.

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)

2013-07-01T23:59:59.000Z

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


281

Aging, rejuvenation and thixotropy in complex fluids. Time-dependence of the viscosity at rest and under constant shear rate or shear stress  

E-Print Network (OSTI)

Complex fluids exhibit time-dependent changes in viscosity that have been ascribed to both thixotropy and aging. However, there is no consensus for which phenomenon is the origin of which changes. A novel thixotropic model is defined that incorporates aging. Conditions under which viscosity changes are due to thixotropy and aging are unambiguously defined. Viscosity changes in a complex fluid during a period of rest after destructuring exhibit a bifurcation at a critical volume fraction PHIc2. For volume fractions less than PHIc2, the viscosity remains finite in the limit t => infinite. For volume fractions above critical the viscosity grows without limit, so aging occurs at rest. At constant shear rate there is no bifurcation, whereas under constant shear stress the model predicts a new bifurcation in the viscosity at a critical stress sB, identical to the yield stress sy observed under steady conditions. The divergence of the viscosity for stress s sB is best defined as aging. However, for s > sB, where the viscosity remains finite, it seems preferable to use the concepts of restructuring and destructuring, rather than aging and rejuvenation. Nevertheless, when a stress sA (sB) is applied during aging, slower aging is predicted and discussed as true rejuvenation. Plastic behaviour is predicted under steady conditions when s > sB. The Herschel-Bulkley model fits the flow curve for stresses close to sB, whereas the Bingham model gives a better fit for s >> sB. Finally, the model's predictions are shown to be consistent with experimental data from the literature for the transient behaviour of laponite gels.

Daniel Quemada

2008-08-25T23:59:59.000Z

282

Neutrino Propagation in a Strongly Magnetized Medium  

E-Print Network (OSTI)

We derive general expressions at the one-loop level for the coefficients of the covariant structure of the neutrino self-energy in the presence of a constant magnetic field. The neutrino energy spectrum and index of refraction are obtained for neutral and charged media in the strong-field limit ($M_{W}\\gg \\sqrt{B}\\gg m_{e},T,\\mu ,| \\mathbf{p}| $) using the lowest Landau level approximation. The results found within the lowest Landau level approximation are numerically validated, summing in all Landau levels, for strong $B\\gg T^{2}$ and weakly-strong $B \\gtrsim T^{2}$ fields. The neutrino energy in leading order of the Fermi coupling constant is expressed as the sum of three terms: a kinetic-energy term, a magnetic-field neutrino-induced-magnetic-moment interaction term, and a rest-energy term. The leading radiative correction to the kinetic-energy term depends linearly on the magnetic field strength and is independent of the chemical potential. The other two terms are only present in a charged medium. For str...

Elizalde, E; De la Incera, V

2004-01-01T23:59:59.000Z

283

Pulse propagation through a dispersive intracavity medium  

E-Print Network (OSTI)

In this paper, we study theoretically the behavior of a pulse as it propagates through an intracavity fast-light medium. The method of using a transfer function to determine a pulse after it passes through a cavity is well known. However, this approach cannot be used to determine the behavior of the pulse inside the cavity. To circumvent this constraint, we use an approach that starts by finding a self-consistent solution for a monochromatic field of infinite spatial and temporal extents, and determine its amplitudes before, inside, and after the cavity. We then construct a Gaussian input pulse by adding a set of these waves, properly phased and weighted, to represent a moving pulse before the cavity. Adding these waves at various time intervals then yields the complete spatial profile everywhere, including before, inside and after the cavity. We first confirm the prediction of this model by analyzing the behavior of a pulse passing through an empty cavity, and comparing the prediction of the output with the ...

Yum, Honam; Shahriar, Selim

2010-01-01T23:59:59.000Z

284

Light Vector Mesons in the Nuclear Medium  

E-Print Network (OSTI)

The light vector mesons ($\\rho$, $\\omega$, and $\\phi$) were produced in deuterium, carbon, titanium, and iron targets in a search for possible in-medium modifications to the properties of the $\\rho$ meson at normal nuclear densities and zero temperature. The vector mesons were detected with the CEBAF Large Acceptance Spectrometer (CLAS) via their decays to $e^{+}e^{-}$. The rare leptonic decay was chosen to reduce final-state interactions. A combinatorial background was subtracted from the invariant mass spectra using a well-established event-mixing technique. The $\\rho$ meson mass spectrum was extracted after the $\\omega$ and $\\phi$ signals were removed in a nearly model-independent way. Comparisons were made between the $\\rho$ mass spectra from the heavy targets ($A > 2$) with the mass spectrum extracted from the deuterium target. With respect to the $\\rho$-meson mass, we obtain a small shift compatible with zero. Also, we measure widths consistent with standard nuclear many-body effects such as collisional broadening and Fermi motion.

M. H. Wood; R. Nasseripour; D. P. Weygand; C. Djalali; C. Tur; U. Mosel; P. Muehlich; CLAS Collaboration

2008-03-04T23:59:59.000Z

285

Molecular cooling in the diffuse interstellar medium  

E-Print Network (OSTI)

We use a simple one-zone model of the thermal and chemical evolution of interstellar gas to study whether molecular hydrogen (H2) is ever an important coolant of the warm, diffuse interstellar medium (ISM). We demonstrate that at solar metallicity, H2 cooling is unimportant and the thermal evolution of the ISM is dominated by metal line cooling. At metallicities below 0.1 Z_solar, however, metal line cooling of low density gas quickly becomes unimportant and H2 can become the dominant coolant, even though its abundance in the gas remains small. We investigate the conditions required in order for H2 to dominate, and show that it provides significant cooling only when the ratio of the interstellar radiation field strength to the gas density is small. Finally, we demonstrate that our results are insensitive to changes in the initial fractional ionization of the gas or to uncertainties in the nature of the dust present in the low-metallicity ISM.

Glover, S C O

2013-01-01T23:59:59.000Z

286

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

SciTech Connect

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.

Shirish Patil; Abhijit Dandekar; Mary Beth Leigh

2008-12-31T23:59:59.000Z

287

Archive Reference Buildings by Building Type: Medium office | Department of  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Medium office Medium office Archive Reference Buildings by Building Type: Medium office Here you will find past versions of the reference buildings for new construction commercial buildings, organized by building type and location. A summary of building types and climate zones is available for reference. Current versions are also available. You can download ZIP files that contain the following: An EnergyPlus software input file (.idf) An html file showing the results from the EnergyPlus simulation (.html) A spreadsheet that summarizes the inputs and results for each location (.xls) The EnergyPlus TMY2 weather file (.epw). benchmark-v1.0_3.0-medium_office.zip benchmark-v1.1_3.1-medium_office.zip benchmark-new-v1.2_4.0-medium_office.zip More Documents & Publications Archive Reference Buildings by Building Type: Large office

288

El Paso Electric Company - Small and Medium System Renewable...  

Open Energy Info (EERE)

Place New Mexico Name El Paso Electric Company - Small and Medium System Renewable Energy Certificate Purchase Program Incentive Type Performance-Based Incentive Applicable...

289

Advanced Vehicle Testing Activity - Medium and Heavy Duty Hybrid...  

NLE Websites -- All DOE Office Websites (Extended Search)

an electric vehicle. Medium and heavy duty HEV testing results to date are posted below. Vehicle Testing Reports INL Hybrid Shuttle Busses INL Hybrid Shuttle Busses INL Hybrid...

290

Medium Voltage Cable Aging Management Guide, Revision 1  

Science Conference Proceedings (OSTI)

Medium-voltage cables (5- to 35-kV rated cables) have provided reasonable service in nuclear power plants. However, there is a concern that cables that have experienced long periods of wet service might degrade and fail in service. Because most plants have had few problems with medium-voltage cable, little on-staff experience with medium-voltage cables exists at most sites. This report has been prepared to provide information that will be of practical use when questions concerning medium-voltage cable lo...

2010-11-29T23:59:59.000Z

291

Guidelines and Toolkits for Urban Transport Development in Medium...  

Open Energy Info (EERE)

Guidelines and Toolkits for Urban Transport Development in Medium Sized Cities in India Jump to: navigation, search Tool Summary Name: Guidelines and Toolkits for Urban Transport...

292

AEDG for Small to Medium Office Buildings: 50% Energy Savings...  

NLE Websites -- All DOE Office Websites (Extended Search)

Compliance Regulations Resource Center AEDG for Small to Medium Office Buildings: 50% Energy Savings in Office Buildings The 50% Advanced Energy Design Guide (AEDG) series...

293

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

E-Print Network (OSTI)

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 release. More importantly, we demonstrated the existence of a second set of conditions. It was obtained when the saliva film is thick and the food bolus coating the mucosa is very diluted by saliva during the swallowing process and the impact of its viscosity on flavour release is weak. This last phenomenon explains physically in vivo observations for Newtonian food products found in the literature. Moreover, in this case, the predicted thickness of the mix of food bolus with saliva coating the mucosa is approximately of 20 $\\mu$m; value in agreement with orders of magnitude found in the literature.

Clment De Loubens; Albert Magnin; Marion Doyennette; Ioan Cristian Trla; Isabelle Souchon

2013-07-04T23:59:59.000Z

294

Three-dimensional natural convection of a fluid with temperature-dependent viscosity in an enclosure with localized heating  

DOE Green Energy (OSTI)

Three-dimensional natural convection of a fluid in an enclosure is examined. The geometry is motivated by a possible magmaenergy extraction system, and the fluid is a magma simulant and has a highly temperature-dependent viscosity. Flow simulations are performed for enclosures with and without a cylinder, which represents the extractor, using the finite-element code FIDAP (Fluid Dynamics International). The presence of the cylinder completely alters the flow pattern. Flow-visualization and PIV experiments are in qualitative agreement wit the simulations.

Torczynski, J.R.; Henderson, J.A.; O`Hern, T.J.; Chu, T.Y.; Blanchat, T.K.

1994-01-01T23:59:59.000Z

295

Medium energy pitch angle distribution during substorm injected electron clouds  

E-Print Network (OSTI)

Medium energy pitch angle distribution during substorm injected electron clouds A. A° snes,1 J, N. ?stgaard, and M. Thomsen (2005), Medium energy pitch angle distribution during substorm injected to obtain pitch angle resolved electron distribution data for measurements at energies 10 eV to 47 keV. [3

Bergen, Universitetet i

296

Optical antireflection of a medium by nanocrystal layers  

Science Conference Proceedings (OSTI)

Optical properties of a semi-infinite dielectric medium comprising a monolayer quasi-crystal of nanoparticles are considered. It is shown that imbedding a single layer of nano-objects regularly distributed in space under certain conditions may provide close to 100 % transmission of the medium in a wide spectral range. (nanooptics)

Shalin, A S [Ul'yanovsk State University, Ulyanovsk (Russian Federation)

2011-02-28T23:59:59.000Z

297

Theory of Neutron Noise in a Temporally Fluctuating Multiplying Medium  

E-Print Network (OSTI)

Theory of Neutron Noise in a Temporally Fluctuating Multiplying Medium Lénárd Pál KFKI Atomic of Technology, Department of Nuclear Engineering SE-41296 Göteborg, Sweden Received January 18, 2006 Accepted) and those in a fluctuating medium (power reactor noise) have been traditionally considered as two separate

Pázsit, Imre

298

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

SciTech Connect

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.

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

2012-11-06T23:59:59.000Z

299

JC3 Medium Impact Assessment Bulletins | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Medium Impact Medium Impact Assessment Bulletins JC3 Medium Impact Assessment Bulletins RSS December 4, 2012 V-039: Samsung and Dell printers Firmware Backdoor Unauthorized Access Vulnerability Samsung has issued a security advisory and an optional firmware update for all current Samsung networked laser printers and multifunction devices to enhance Simple Network Management Protocol (SNMP) security. November 30, 2012 V-037: Wireshark Multiple Bugs Let Remote Users Deny Service Several vulnerabilities were reported in Wireshark. November 29, 2012 V-036: EMC Smarts Network Configuration Manager Database Authentication Bypass Vulnerability Two vulnerabilities were reported in EMC Smarts Network Configuration Manager. November 27, 2012 V-034: RSA Adaptive Authentication (On-Premise) Input Validation Flaws

300

Georgia Power - Small and Medium Scale Advanced Solar Initiative (GPASI)  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Georgia Power - Small and Medium Scale Advanced Solar Initiative Georgia Power - Small and Medium Scale Advanced Solar Initiative (GPASI) (Georgia) Georgia Power - Small and Medium Scale Advanced Solar Initiative (GPASI) (Georgia) < Back Eligibility Agricultural Commercial General Public/Consumer Installer/Contractor Institutional Local Government Multi-Family Residential Nonprofit Residential Schools State Government Savings Category Solar Buying & Making Electricity Program Info Start Date 03/01/2013 State Georgia Program Type Other Incentive Provider GPASI Project Manager '''''Note: The application process for the small and medium scale solar programs began on March 1, 2013 and will continue through March 11, 2013. If completed applications exceed program capacity limit of 45 megawatts (MW), a lottery will be conducted, with Georgia Public Service Commission

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


301

Spatiotemporal Behavior of the TIGGE Medium-Range Ensemble Forecasts  

Science Conference Proceedings (OSTI)

Using the recently developed meanvariance of logarithms (MVL) diagram, together with The Observing System Research and Predictability Experiment (THORPEX) Interactive Grand Global Ensemble (TIGGE) archive of medium-range ensemble forecasts from ...

Zak Kipling; Cristina Primo; Andrew Charlton-Perez

2011-08-01T23:59:59.000Z

302

Applying Strategic Sustainability: For Small and Medium Sized Enterprises.  

E-Print Network (OSTI)

??Small and Medium-sized Enterprises (SMEs) are an underutilised sector to disseminating sustainability within communities. Entrepreneurs are action-oriented individuals who enjoy challenges and act upon environmental (more)

McElroy, Rachelle; Orozco, Itzel

2006-01-01T23:59:59.000Z

303

Skill of Medium-Range Hydrological Ensemble Predictions  

Science Conference Proceedings (OSTI)

A hydrological ensemble prediction system, integrating a water balance model with ensemble precipitation forecasts from the European Centre for Medium-Range Weather Forecasts (ECMWF) Ensemble Prediction System (EPS), is evaluated for two Belgian ...

Emmanuel Roulin; Stphane Vannitsem

2005-10-01T23:59:59.000Z

304

Compressing proteomes: the relevance of medium range correlations  

Science Conference Proceedings (OSTI)

We study the nonrandomness of proteome sequences by analysing the correlations that arise between amino acids at a short and medium range, more specifically, between amino acids located 10 or 100 residues apart; respectively. We show that statistical ...

Dario Benedetto; Emanuele Caglioti; Claudia Chica

2007-01-01T23:59:59.000Z

305

Final Report - IHLW PCT, Spinel T1%, Electrical Conductivity, and Viscosity Model Development, VSL-07R1240-4  

SciTech Connect

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.

Kruger, Albert A.; Piepel, Gregory F.; Landmesser, S. M.; Pegg, I. L.; Heredia-Langner, Alejandro; Cooley, Scott K.; Gan, H.; Kot, W. K.

2013-11-13T23:59:59.000Z

306

Topical viscosity control for light hydrocarbon displacing fluids in petroleum recovery and in fracturing fluids for well stimulation  

DOE Patents (OSTI)

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.

Heller, John P. (Socorro, NM); Dandge, Dileep K. (Socorro, NM)

1986-01-01T23:59:59.000Z

307

Gas bubble retention and its effect on waste properties: Retention mechanisms, viscosity, and tensile and shear strengths  

SciTech Connect

Several of the underground nuclear storage tanks at Hanford have been placed on a flammable gas watch list, because the waste is either known or suspected to generate, store, and episodically release flammable gases. Because retention and episodic release of flammable gases from these tanks containing radioactive waste slurries are critical safety concerns, Pacific Northwest Laboratory (PNL) is studying physical mechanisms and waste properties that contribute to the episodic gas release from these storage tanks. This study is being conducted for Westinghouse Hanford Company as part of the PNL Flammable Gas project. Previous investigations have concluded that gas bubbles are retained by the slurry or sludge that has settled at the bottom of the tanks; however, the mechanisms responsible for the retention of these bubbles are not well understood. Understanding the rheological behavior of the waste, particularly of the settled sludge, is critical to characterizing the tendency of the waste to retain gas bubbles and the dynamics of how these bubbles are released from the waste. The presence of gas bubbles is expected to affect the rheology of the sludge, specifically its viscosity and tensile and shear strengths, but essentially no literature data are available to assess the effect of bubbles. The objectives of this study were to conduct experiments and develop theories to understand better how bubbles are retained by slurries and sludges, to measure the effect of gas bubbles on the viscosity of simulated slurries, and to measure the effect of gas bubbles on the tensile and shear strengths of simulated slurries and sludges. In addition to accomplishing these objectives, this study developed correlations, based on the new experimental data, that can be used in large-scale computations of waste tank physical phenomena.

Gauglitz, P.A.; Rassat, S.D.; Powell, M.R. [and others

1995-08-01T23:59:59.000Z

308

Medium Modifications of Hadron Properties and Partonic Processes  

Science Conference Proceedings (OSTI)

Chiral symmetry is one of the most fundamental symmetries in QCD. It is closely connected to hadron properties in the nuclear medium via the reduction of the quark condensate , manifesting the partial restoration of chiral symmetry. To better understand this important issue, a number of Jefferson Lab experiments over the past decade have focused on understanding properties of mesons and nucleons in the nuclear medium, often benefiting from the high polarization and luminosity of the CEBAF accelerator. In particular, a novel, accurate, polarization transfer measurement technique revealed for the first time a strong indication that the bound proton electromagnetic form factors in 4He may be modified compared to those in the vacuum. Second, the photoproduction of vector mesons on various nuclei has been measured via their decay to e+e- to study possible in-medium effects on the properties of the rho meson. In this experiment, no significant mass shift and some broadening consistent with expected collisional broadening for the rho meson has been observed, providing tight constraints on model calculations. Finally, processes involving in-medium parton propagation have been studied. The medium modifications of the quark fragmentation functions have been extracted with much higher statistical accuracy than previously possible.

W. K. Brooks, S. Strauch, K. Tsushima

2011-06-01T23:59:59.000Z

309

Percutaneous Vertebroplasty and Bone Cement Leakage: Clinical Experience with a New High-Viscosity Bone Cement and Delivery System for Vertebral Augmentation in Benign and Malignant Compression Fractures  

Science Conference Proceedings (OSTI)

The aim of this study was to assess the feasibility of and venous leakage reduction in percutaneous vertebroplasty (PV) using a new high-viscosity bone cement (PMMA). PV has been used effectively for pain relief in osteoporotic and malignant vertebral fractures. Cement extrusion is a common problem and can lead to complications. Sixty patients (52 female; mean age, 72.2 {+-} 7.2) suffering from osteoporosis (46), malignancy (12), and angiomas (2), divided into two groups (A and B), underwent PV on 190 vertebrae (86 dorsal, 104 lumbar). In Group A, PV with high-viscosity PMMA (Confidence, Disc-O-Tech, Israel) was used. This PMMA was injected by a proprietary delivery system, a hydraulic saline-filled screw injector. In Group B, a standard low-viscosity PMMA was used. Postprocedural CT was carried out to detect PMMA leakages and complications. Fisher's exact test and Wilcoxon rank test were used to assess significant differences (p PV was feasible, achieving good clinical outcome (p < 0.0001) without major complications. In Group A, postprocedural CT showed an asymptomatic leak in the venous structures of 8 of 98 (8.2%) treated vertebrae; a discoidal leak occurred in 6 of 98 (6.1%). In Group B, a venous leak was seen in 38 of 92 (41.3%) and a discoidal leak in 12 of 92 (13.0%). Reduction of venous leak obtained by high-viscosity PMMA was highly significant (p < 0.0001), whereas this result was not significant (p = 0.14) related to the disc. The high-viscosity PMMA system is safe and effective for clinical use, allowing a significant reduction of extravasation rate and, thus, leakage-related complications.

Anselmetti, Giovanni Carlo, E-mail: giovanni.anselmetti@ircc.i [Institute for Cancer Research and Treatment (IRCC), Interventional Radiology Unit (Italy); Zoarski, Gregg [University of Maryland, Radiology and Radiological Science (United States); Manca, Antonio [Institute for Cancer Research and Treatment (IRCC), Radiology Unit (Italy); Masala, Salvatore [University 'Tor Vergata', Radiology Unit and Interventional Radiology Unit (Italy); Eminefendic, Haris; Russo, Filippo; Regge, Daniele [Institute for Cancer Research and Treatment (IRCC), Radiology Unit (Italy)

2008-09-15T23:59:59.000Z

310

JC3 Medium Impact Assessment Bulletins | Department of Energy  

NLE Websites -- All DOE Office Websites (Extended Search)

Medium Impact Medium Impact Assessment Bulletins JC3 Medium Impact Assessment Bulletins RSS September 9, 2013 V-237: TYPO3 Security Bypass Vulnerabilities TYPO3 comes with the possibility to restrict editors to certain file actions (copy, delete, move etc.) and to restrict these actions to be performed in certain locations September 4, 2013 V-234: EMC RSA Archer GRC Open Redirection Weakness and Security Bypass Security Issue This fixes multiple vulnerabilities, which can be exploited to bypass certain security restrictions and to conduct spoofing attacks September 3, 2013 V-233: Red Hat update for JBoss Fuse This fixes multiple vulnerabilities, which can be exploited by malicious people to bypass certain security restrictions and cause a DoS. August 28, 2013 V-229: IBM Lotus iNotes Input Validation Flaws Permit Cross-Site Scripting

311

Demand response medium sized industry consumers (Smart Grid Project) | Open  

Open Energy Info (EERE)

response medium sized industry consumers (Smart Grid Project) response medium sized industry consumers (Smart Grid Project) Jump to: navigation, search Project Name Demand response medium sized industry consumers Country Denmark Headquarters Location Aarhus, Denmark Coordinates 56.162937°, 10.203921° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":56.162937,"lon":10.203921,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

312

Feature - Fuel Economy for Medium- and Heavy-Duty Vehicles  

NLE Websites -- All DOE Office Websites (Extended Search)

New Report Looks at Fuel Economy for Medium- and Heavy-Duty Vehicles New Report Looks at Fuel Economy for Medium- and Heavy-Duty Vehicles heavy duty trucks Argonne researcher Aymeric Rousseau was part of a National Academy of Science (NAS) committee established to make recommendations on improving and regulating fuel consumption for medium- and heavy-duty vehicles. On March 31, the committee issued a report that evaluates various technologies and methods that could improve the fuel economy of these vehicles. As a system analysis engineer at Argonne's Center for Transportation Research, Rousseau contributed his expertise on vehicle modeling and simulation to the committee, which was comprised of 19 members from industry, research organizations and academia. Rousseau, who leads the development of Argonne's PSAT and Autonomie software tools, helped the committee determine how modeling and simulation tools can be used to:

313

Training Manual for Micro, Small and Medium Entrepreneurs in Energy  

Open Energy Info (EERE)

Training Manual for Micro, Small and Medium Entrepreneurs in Energy Training Manual for Micro, Small and Medium Entrepreneurs in Energy Business Financing Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Training Manual for Micro, Small and Medium Entrepreneurs in Energy Business Financing Agency/Company /Organization: GVEP International Sector: Energy Focus Area: Renewable Energy, Non-renewable Energy Phase: Bring the Right People Together, Create a Vision, Determine Baseline, Evaluate Options, Develop Goals, Prepare a Plan Topics: Finance Resource Type: Training materials User Interface: Website Website: www.gvepinternational.org/sites/default/files/manual_for_sme_energy_fi Cost: Free UN Region: Eastern Africa Language: English The training manual is developed as a modular guide to enable energy entrepreneurs to acquire supplementary knowledge in order to expand their

314

Guidelines and Toolkits for Urban Transport Development in Medium Sized  

Open Energy Info (EERE)

Guidelines and Toolkits for Urban Transport Development in Medium Sized Guidelines and Toolkits for Urban Transport Development in Medium Sized Cities in India Jump to: navigation, search Tool Summary Name: Guidelines and Toolkits for Urban Transport Development in Medium Sized Cities in India Agency/Company /Organization: Asian Development Bank Focus Area: Governance - Planning - Decision-Making Structure Topics: Best Practices Complexity/Ease of Use: Not Available Website: sti-india-uttoolkit.adb.org/ Transport Toolkit Region(s): Asia Related Tools Promoting Clean Cars: Case Study of Stockholm and Sweden MOtor Vehicle Emission Simulator (MOVES) The World Bank - Transport ... further results Find Another Tool FIND TRANSPORTATION TOOLS This resource is designed to help decision makers and practitioners in states and municipal governments who are concerned with urban transport

315

The neutrino self-energy in a magnetized medium  

E-Print Network (OSTI)

In this work we calculate the neutrino self-energy in presence of a magnetized medium. The magnetized medium consists of electrons, positrons, neutrinos and a uniform classical magnetic field. The calculation is done assuming the background magnetic field is weak compared to the $W$-Boson mass squared, as a consequence of which only linear order corrections in the field are included in the $W$ boson propagator. The electron propagator consists all order corrections in the background field. Although the neutrino self-energy in a magnetized medium in various limiting cases has been calculated previously in this article we produce the most general expression of the self-energy in absence of the Landau quantization of the charged gauge fields. We calculate the effect of the Landau quantization of the charged leptons on the neutrino self-energy in the general case. Our calculation is specifically suited for situations where the background plasma may be CP symmetric.

Alberto Bravo Garcia; Kaushik Bhattacharya; Sarira Sahu

2007-06-27T23:59:59.000Z

316

Flow-induced channelization in a porous medium  

E-Print Network (OSTI)

We propose a theory for erosional channelization induced by fluid flow in a saturated granular porous medium. When the local fluid flow-induced stress is larger than a critical threshold, grains are dislodged and carried away so that the porosity of the medium is altered by erosion. This in turn affects the local hydraulic conductivity and pressure in the medium and results in the growth and development of channels that preferentially conduct the flow. Our multiphase model involves a dynamical porosity field that evolves along with the volume fraction of the mobile and immobile grains in response to fluid flow that couples the spatiotemporal dynamics of the three phases. Numerical solutions of the resulting initial boundary value problem show how channels form in porous media and highlights how heterogeneity in the erosion threshold dictates the form of the patterns and thus the ability to control them.

Mahadevan, Amala

2010-01-01T23:59:59.000Z

317

Gamma-ray burst interaction with dense interstellar medium  

E-Print Network (OSTI)

Interaction of cosmological gamma ray burst radiation with the dense interstellar medium of host galaxy is considered. Gas dynamical motion of interstellar medium driven by gamma ray burst is investigated in 2D approximation for different initial density distributions of host galaxy matter and different total energy of gamma ray burst. The maximum velocity of motion of interstellar medium is $1.8\\cdot10^4$ km/s. Light curves of gamma ray burst afterglow are calculated for set of non homogeneous density, distribution gamma ray burst total energy, and different viewing angles. Spectra of gamma ray burst afterglow are modeled taking into account conversion of hard photons (soft X-ray, hard UV) to soft UV and optics photons.

Maxim Barkov; Gennady Bisnovatyi-Kogan

2004-10-07T23:59:59.000Z

318

The impact of energy constraints on the medium access  

E-Print Network (OSTI)

Contemporary mobile devices are battery powered and due to their shrinking size and increasing complexity operate on a tight energy budget. Thus, energy consumption is becoming one of the major concerns regarding the current and upcoming wireless communication systems. On the other hand, the available bandwidth resources are limited and modern applications are throughput demanding, leading thus to strong competition for the medium. In this direction, we consider a stochastic contention based medium access scheme, where the devices may choose to turn off for some time in order to save energy. We perform an analysis for a slotted ALOHA scenario and we show that the energy constraints, if properly exploited, may reduce contention for the medium. Our results give valuable insights on the energy--throughput tradeoff for any contention based system.

Gkatzikis, Lazaros; Koutsopoulos, Iordanis

2011-01-01T23:59:59.000Z

319

Exploration of the comics medium developed for use on the internet.  

E-Print Network (OSTI)

??A new derivative of the comics medium may be created by incorporating computer and internet technology into the design process. Traditionally a printed medium, comics (more)

Piana, Brian James

2012-01-01T23:59:59.000Z

320

Biofuel Boundaries: Estimating the Medium-Term Supply Potential of Domestic Biofuels  

E-Print Network (OSTI)

Biofuel Boundaries: Estimating the Medium-Term SupplyAugust 22, 2007 Biofuel Boundaries: Estimating the Medium-significant amount of liquid biofuel (equivalent to 30-100%

Jones, Andrew; O'Hare, Michael; Farrell, Alexander

2007-01-01T23:59:59.000Z

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


321

Heat transfer modeling at an interface between a porous medium and a free region.  

E-Print Network (OSTI)

??This work deals with the study of heat transfer between a porous medium and a free medium, using multi scale approaches. First, we derive the (more)

D'hueppe, Alinor

2011-01-01T23:59:59.000Z

322

Increasing the Competitiveness of Small and Medium-sized Enterprises  

Open Energy Info (EERE)

Page Page Edit with form History Facebook icon Twitter icon » Increasing the Competitiveness of Small and Medium-sized Enterprises Through the Use of Environmentally Sound Technologies Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Increasing the Competitiveness of Small and Medium-sized Enterprises Through the Use of Environmentally Sound Technologies: : Assessing the Potential for the Development of Second-generation Biofuels in the ESCWA Region Agency/Company /Organization: United Nations Economic and Social Commission for Western Asia Sector: Energy Focus Area: Renewable Energy, Biomass Topics: Market analysis, Policies/deployment programs, Background analysis, Technology characterizations Resource Type: Guide/manual, Lessons learned/best practices

323

Quarkonium Production and Medium Effects in High Energy Nuclear Collisions  

E-Print Network (OSTI)

Color screening and regeneration are both hot medium effects on quarkonium production in high energy nuclear collisions. However, they affect in an opposite way the finally observed quarkonium spectra. Due to the competition of the two dynamical effects, the ratio of the integrated quarkonium yield between nuclear and elementary nucleon collisions loses its sensitivity. Once the information of quarkonium transverse motion is included, on the other hand, the ratio of averaged transverse momentum square reveals the nature of the QCD medium created in high energy nuclear collisions.

Zhou, Kai; Zhuang, Pengfei

2013-01-01T23:59:59.000Z

324

Safety and licensing for small and medium power reactors  

SciTech Connect

Proposed new concepts for small and medium power reactors differ substantially from traditional Light Water Reactors (LWRs). Although designers have a large base of experience in safety and licensing, much of it is not relevant to new concepts. It can be a disadvantage if regulators apply LWR rules directly. A fresh start is appropriate. The extensive interactions between industry, regulators, and the public complicates but may enhance safety. It is basic to recognize the features that distinguish nuclear energy safety from that for other industries. These features include: nuclear reactivity, fission product radiation, and radioactive decay heat. Small and medium power reactors offer potential advantages over LWRs, particularly for reactivity and decay heat.

Trauger, D.B.

1987-01-01T23:59:59.000Z

325

Energy trapping and shock disintegration in a composite granular medium  

E-Print Network (OSTI)

Granular materials demonstrate a strongly nonlinear behavior influencing the wave propagation in the medium. We report the first experimental observation of impulse energy confinement and the resultant disintegration of shock and solitary waves. The medium consists of alternating ensambles of high-modulus vs orders of magnitude lower modulus chains of different masses. The trapped energy is contained within the "softer" portions of the composite chain and is slowly released in the form of weak, separated pulses over an extended period of time. This effect is enhanced by using a specific group assembly and superimposed force.

C. Daraio; V. F. Nesterenko; E. B. Herbold; S. Jin

2005-09-24T23:59:59.000Z

326

Transportation and Handling of Medium Btu Gas in Pipelines  

Science Conference Proceedings (OSTI)

Coal-derived medium btu gas can be safely transported by pipeline over moderate distances, according to this survey of current industrial pipeline practices. Although pipeline design criteria will be more stringent than for natural gas pipelines, the necessary technology is readily available.

1984-03-01T23:59:59.000Z

327

Displacement by SV Waves in Fluid Saturated Medium  

Science Conference Proceedings (OSTI)

Dihydroxy benzenes are of considerable interest because the stabilities of the molecular H-bond as well as the interaction between the ? charges of the benzene ring and the OH group[1]. The three isomers of di-hydroxy benzene namely, catechol, resorcinol, ... Keywords: diffusion, density, insoluble and soluble mediums

Dennis Ling Chuan Ching; Zainal Abdul Aziz

2010-05-01T23:59:59.000Z

328

Anisotropic MHD Turbulence in the Interstellar Medium and Solar Wind  

E-Print Network (OSTI)

Anisotropic MHD Turbulence in the Interstellar Medium and Solar Wind C. S. Ng Center for Magnetic (MHD) turbulence Observations in ISM and solar wind · Anisotropy due to magnetic field · Electron MHD turbulence #12;Interstellar turbulence From Cordes (1999) Observation: power law relation between electron

Ng, Chung-Sang

329

Technical Assistance for Small and Medium Sized Manufacturers  

E-Print Network (OSTI)

.iac.rutgers.edu U.S. Department of Energy Energy Efficiency and Renewable Energy Washington, DC 20585Technical Assistance for Small and Medium Sized Manufacturers As part of Save Energy Now, the Industrial Assessment Centers (IAC) provide energy, waste, and productivity assessments at no charge to small

Washington at Seattle, University of

330

ENSEMBLE RE-FORECASTING : IMPROVING MEDIUM-RANGE FORECAST SKILL  

E-Print Network (OSTI)

5.5 ENSEMBLE RE-FORECASTING : IMPROVING MEDIUM-RANGE FORECAST SKILL USING RETROSPECTIVE FORECASTS, Colorado 1. INTRODUCTION Improving weather forecasts is a primary goal of the U.S. National Oceanic predictions has been to improve the accuracy of the numerical forecast models. Much effort has been expended

Hamill, Tom

331

THE RANDOM CHOICE METHOD FOR CALCULATING FLUID DISPLACEMENT IN A POROUS MEDIUM  

E-Print Network (OSTI)

Abstract Multiphase fluid displacement in a porous mediumIntroduction Multiphase fluid displacement in a porous

Albright, N.

2011-01-01T23:59:59.000Z

332

The effect of adding crystalline silicotitanate on the durability, liquidus, and viscosity of simulated high-level waste glasses at Savannah River Site  

SciTech Connect

This report provides a summary of the results obtained for a limited variability study for glasses containing Crystalline Silicotitanate (CST), Monosodium Titanate (MST), and either simulated Purex or HM sludge. Twenty-two glasses containing Purex sludge and three glasses containing HM sludge were fabricated and tested. The fabricated glasses were tested for durability using the 7-day Product Consistency Test (PCT) and characterized by measuring the viscosity at 1,150 C and by determining an approximate, bounding liquidus temperature. The current models used by Defense Waste Processing Facility (DWPF) for predicting durability, viscosity, and liquidus temperature were applied to all 25 glasses. The goal of this work was to identify any major problems from a glass perspective, within the scope of this effort, which could potentially preclude the use of CST at DWPF.

Harbour, J.R.

2000-01-26T23:59:59.000Z

333

Computational and experimental investigation of the drag reduction and the components of pressure drop in horizontal slug flow using liquids of different viscosities  

SciTech Connect

Computational and experimental investigation in 10-cm ID horizontal pipes have been carried out utilizing carbon dioxide as the gas phase and two types of oil with different viscosities; namely 0.0025Pas and 0.05Pas, as the liquid phase. The influence of oil viscosity on the magnitude of total pressure drop and each of its components as well as the effectiveness of a drag reducing additive (DRA, CDR WS 500M flow improver) in decreasing the pressure loss was investigated in two-phase oil-gas slug flow. The effects of changing oil viscosity on the contribution of frictional and accelerational components to total pressure drop in slug flow were also examined and analyzed. Computations of accelerational and frictional components of pressure drop were performed. The accelerational component of pressure drop was dominant in the 0.0025Pas oil while the frictional component had significant contributions in the 0.05Pas oil. Despite the fact that the magnitude of drag reduction was higher in the 0.05Pas oil, the DRA was more effective in reducing the total pressure drop and its components in the 0.0025Pas oil. (author)

Daas, Mutaz [Hemispheric Center for Environmental Technology, Florida International University, 10555 West Flagler Street, Suite 2100, Miami, FL 33174 (United States); Bleyle, Derek [Ohio University, 9933 State Route 682 Athens, OH 45701 (United States)

2006-03-01T23:59:59.000Z

334

Medium effects on charged pion ratio in heavy ion collisions  

E-Print Network (OSTI)

We have recently studied in the delta-resonance--nucleon-hole model the dependence of the pion spectral function in hot dense asymmetric nuclear matter on the charge of the pion due to the pion p-wave interaction in nuclear medium. In a thermal model, this isospin-dependent effect enhances the ratio of negatively charged to positively charged pions in neutron-rich nuclear matter, and the effect is comparable to that due to the uncertainties in the theoretically predicted stiffness of nuclear symmetry energy at high densities. This effect is, however, reversed if we also take into account the s-wave interaction of the pion in nuclear medium as given by chiral perturbation theory, resulting instead in a slightly reduced ratio of negatively charged to positively charged pions. Relevance of our results to the determination of the nuclear symmetry energy from the ratio of negatively to positively charged pions produced in heavy ion collisions is discussed.

Che Ming Ko; Yongseok Oh; Jun Xu

2010-02-01T23:59:59.000Z

335

In-medium nuclear interactions of low-energy hadrons  

E-Print Network (OSTI)

Experimental and theoretical developments of the last decade in the study of exotic atoms and some related low-energy reactions are reviewed, in order to provide information on the in-medium hadron-nucleon t matrix over a wide range of densities up to central nuclear densities. In particular, we review pionic deeply bound atomic states and related evidence for partial restoration of chiral symmetry in dense nuclear matter. The case for relatively narrow deeply bound atomic states for antikaons and antiprotons is made, based on the physics of strong nuclear absorption. Recent experimental suggestions for signals of antikaon-nuclear deeply bound states are reviewed, and dynamical models for calculating binding energies, widths and densities of antikaon nuclear states are discussed. Specific features of low-energy in-medium interactions of kaons, antiprotons and of Sigma hyperons are discussed, and suggestions to study experimentally Cascade atoms are reviewed.

Friedman, E

2007-01-01T23:59:59.000Z

336

In-medium nuclear interactions of low-energy hadrons  

E-Print Network (OSTI)

Experimental and theoretical developments of the last decade in the study of exotic atoms and some related low-energy reactions are reviewed, in order to provide information on the in-medium hadron-nucleon t matrix over a wide range of densities up to central nuclear densities. In particular, we review pionic deeply bound atomic states and related evidence for partial restoration of chiral symmetry in dense nuclear matter. The case for relatively narrow deeply bound atomic states for antikaons and antiprotons is made, based on the physics of strong nuclear absorption. Recent experimental suggestions for signals of antikaon-nuclear deeply bound states are reviewed, and dynamical models for calculating binding energies, widths and densities of antikaon nuclear states are discussed. Specific features of low-energy in-medium interactions of kaons, antiprotons and of Sigma hyperons are discussed, and suggestions to study experimentally Cascade atoms are reviewed.

E. Friedman; A. Gal

2007-05-27T23:59:59.000Z

337

Envelope evolution of a laser pulse in an active medium  

Science Conference Proceedings (OSTI)

The authors show that the envelope velocity, v{sub env}, of a short laser pulse can, via propagation in an active medium, be made less than, equal to, or even greater than c, the vacuum phase velocity of light. Simulation results, based on moving frame propagation equations coupling the laser pulse, active medium and plasma, are presented, as well as equations that determines the design value of super- and sub-luminous v{sub env}. In this simulation the laser pulse evolves in time in a moving frame as opposed to their earlier work where the profile was fixed. The elimination of phase slippage and pump depletion effects in the laser wakefield accelerator is discussed as a particular application. Finally they discuss media properties necessary for an experimental realization of this technique.

Fisher, D.L.; Tajima, T.; Downer, M.C.; Siders, C.W.

1994-11-01T23:59:59.000Z

338

Programs for Small and Medium-Sized Manufacturers  

E-Print Network (OSTI)

The industrial sector represents a diverse grouping of companies that very significantly in their size and how they use energy. Industrial programs have tended to focus their efforts on customized incentives that capture large energy efficiency opportunities at each facility. While this approach works well for larger firms, the transaction costs of identifying and proposing projects for small and medium-sized manufacturers (SMM) is frequently prohibitive. As a result, programs have tended to focus on prescriptive rebates for equipment that do not address a significant portion of the energy use in these firms. However, number of innovative approaches exist, including quasi-prescriptive rebates, funding in-house energy managers, working through supply chains, and working through trade groups and market allies to provide services through trusted networks. This paper will summarize recent research on energy efficiency programs targeting SMMs and provide recommendation for program design to maximize energy savings for small and medium manufactures.

Trombley, D.

2013-01-01T23:59:59.000Z

339

On fluid flow in a heterogeneous medium under nonisothermal conditions  

SciTech Connect

An asymptotic technique, valid in the presence of smoothly-varying heterogeneity, provides explicit expressions for the velocity of a propagating pressure and temperature disturbance. The governing equations contain nonlinear terms due to the presence of temperature-dependent coefficients and due to the advection of fluids with differing temperatures. Two cases give well-defined expressions in terms of the parameters of the porous medium: the uncoupled propagation of a pressure disturbance and the propagation of a fully coupled temperature and pressure disturbance. The velocity of the coupled disturbance or front, depends upon the medium parameters and upon the change in temperature and pressure across the front. For uncoupled flow, the semi-analytic expression for the front velocity reduces to that associated with a linear diffusion equation. A comparison of the asymptotic travel time estimates with calculations from a numerical simulator indicates reasonably good agreement for both uncoupled and coupled disturbances.

D.W., Vasco

2010-11-01T23:59:59.000Z

340

Stimulation of static deconfined medium by multiple hard partons  

E-Print Network (OSTI)

We investigate the response of non-expanding deconfined hot matter to energy and momentum deposition from a pair of partons moving with high energies. Several situations are examined with partons moving so that the generated wakes in the medium interact. The resulting energy and flow profiles are studied. Such cases are relevant for nuclear collisions at the LHC where several hard partons are produced in a single collision and their contribution to collective expansion of the fireball may be important.

Martin Schulc; Boris Tomasik

2013-05-06T23:59:59.000Z

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


341

Pauli blocking in the nuclear medium. pi. N transition matrix  

SciTech Connect

We give an analytic expression for the in-medium nonstatic ..pi..N transition matrix in nuclear matter. Pauli blocking and spreading effects are included explicitly. Spin-flip terms are retained. We discuss the modifications of the free-space amplitude as a function of energy and density and show that large dynamical isospin effects are expected in pion scattering on heavy nuclei.

Moniz, E.J.; Sevgen, A.

1981-07-01T23:59:59.000Z

342

Commercial Reference Building: Medium Office | OpenEI  

Open Energy Info (EERE)

Medium Office Medium Office Dataset Summary Description Commercial reference buildings provide complete descriptions for whole building energy analysis using EnergyPlus simulation software. Included here is data pertaining to the reference building type Medium Office for each of the 16 climate zones, and each of three construction categories: new construction, post-1980 construction existing buildings, pre-1980 construction existing buildings. The dataset includes four key components: building summary, zone summary, location summary and a picture. Building summary includes details about: form, fabric, and HVAC. Zone summary includes details such as: area, volume, lighting, and occupants for all types of zones in the building. Location summary includes key building information as it pertains to each climate zone, including: fabric and HVAC details, utility costs, energy end use, and peak energy demand.In total, DOE developed 16 reference building types that represent approximately 70% of commercial buildings in the U.S.; for each type, building models are available for three categories: new construction, post-1980 construction existing buildings, pre-1980 construction existing buildings. The commercial reference buildings (formerly known as commercial building benchmark models) were developed by the U.S. Department of Energy (DOE), in conjunction with three of its national laboratories.Additional data is available directly from DOE's Energy Efficiency & Renewable Energy (EERE) Website, including EnergyPlus software input files (.idf) and results of the EnergyPlus simulations (.html).

343

El Paso Electric Company - Small and Medium System Renewable Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

El Paso Electric Company - Small and Medium System Renewable Energy El Paso Electric Company - Small and Medium System Renewable Energy Certificate Purchase Program El Paso Electric Company - Small and Medium System Renewable Energy Certificate Purchase Program < Back Eligibility Commercial Fed. Government Industrial Nonprofit Residential State Government Savings Category Energy Sources Buying & Making Electricity Solar Wind Program Info Start Date 3/1/2009 State New Mexico Program Type Performance-Based Incentive Rebate Amount Systems 10 kW or less: PV: $0.04/kWh for RECs produced for a period of 8 years Wind: $0.03 /kWh for RECs produced for a period of 8 years Systems greater than 10 kW and up to 100 kW: PV: $0.04/kWh for RECs produced for a period of 8 years Wind: $0.02 /kWh for RECs produced for a period of 8 years Systems greater than 100 kW and up to 1,000 kW:

344

Gamma-beam propagation in the anisotropic medium  

E-Print Network (OSTI)

Propagation of gamma-beam in the anisotropic medium is considered. The simpliest example of such a medium of the general type is a combination of the two linearly polarized monochromatic laser waves with different frequencies (dichromatic wave). The optical properties of this combination are described with the use of the permittivity tensor. The refractive indices and polarization characteristics of normal electromagnetic waves propagating in the anisotropic medium are found. The relations, describing variations of gamma-beam intensity and Stokes parameters as functions of propagation length are obtained. The influence of laser wave intensity on the propagation process are calculated. The gamma-beam intensity losses in the dichromatic wave depend on the initial circular polarization of gamma-quanta. This effect is also applied to the single crystals, which are oriented in some regions of coherent pair production. In principle, the single crystal sensitivity to a circular polarization can be used for determination of polarization of high energy (in tens GeV and more) gamma-quanta and electrons.

V. A. Maisheev

1997-10-01T23:59:59.000Z

345

Fractal nature of medium-range order in metallic glasses  

Science Conference Proceedings (OSTI)

The atomic structure of metallic glasses has been a long-standing scientific mystery. Unlike crystalline metals, where long-range ordering is established by periodic stacking of fundamental building blocks known as unit cells, a metallic glass has no long-range translational order, although some degrees of short- and medium-range order do exist.1,2,3 Previous studies1,2,3,4 have identified solute-centered clusters, characterized by short-range order (SRO) in favor of unlike bonds, as the fundamental building blocks of metallic glasses. However, how these building blocks are connected or packed to form the medium range order (MRO) remains an open question.1,2,3 Here, based on neutron and x-ray diffraction experiments, we propose a new packing scheme - the self-similar packing of atomic clusters. We show that MRO has the characteristics of a fractal network with a dimension of 2.38, and is described by a power-law correlation function over the medium-range length scale. Our finding provides a new prospective of order in disordered materials and has broad implications for understanding the structure-property relationship in metallic glasses, particularly those involving change in length scales due to phase transformation and mechanical deformation.

Ma, Dong [ORNL; Stoica, Alexandru Dan [ORNL; Wang, Xun-Li [ORNL

2009-01-01T23:59:59.000Z

346

Ventilation, temperature, and HVAC characteristics in small and medium  

NLE Websites -- All DOE Office Websites (Extended Search)

Ventilation, temperature, and HVAC characteristics in small and medium Ventilation, temperature, and HVAC characteristics in small and medium commercial buildings in California Title Ventilation, temperature, and HVAC characteristics in small and medium commercial buildings in California Publication Type Journal Article Refereed Designation Refereed Year of Publication 2012 Authors Bennett, Deborah H., William J. Fisk, Michael G. Apte, X. Wu, Amber L. Trout, David Faulkner, and Douglas P. Sullivan Journal Indoor Air Volume 22 Issue 4 Pagination 309-20 Abstract This field study of 37 small and medium commercial buildings throughout California obtained information on ventilation rate, temperature, and heating, ventilating, and air-conditioning (HVAC) system characteristics. The study included seven retail establishments; five restaurants; eight offices; two each of gas stations, hair salons, healthcare facilities, grocery stores, dental offices, and fitness centers; and five other buildings. Fourteen (38%) of the buildings either could not or did not provide outdoor air through the HVAC system. The air exchange rate averaged 1.6 (s.d. = 1.7) exchanges per hour and was similar between buildings with and without outdoor air supplied through the HVAC system, indicating that some buildings have significant leakage or ventilation through open windows and doors. Not all buildings had sufficient air exchange to meet ASHRAE 62.1 Standards, including buildings used for fitness centers, hair salons, offices, and retail establishments. The majority of the time, buildings were within the ASHRAE temperature comfort range. Offices were frequently overcooled in the summer. All of the buildings had filters, but over half the buildings had a filter with a minimum efficiency reporting value rating of 4 or lower, which are not very effective for removing fine particles. PRACTICAL IMPLICATIONS: Most U.S. commercial buildings (96%) are small- to medium-sized, using nearly 18% of the country's energy, and sheltering a large population daily. Little is known about the ventilation systems in these buildings. This study found a wide variety of ventilation conditions, with many buildings failing to meet relevant ventilation standards. Regulators may want to consider implementing more complete building inspections at commissioning and point of sale.

347

Vehicle Technologies Office: Fact #369: April 25, 2005 Medium-Truck Miles  

NLE Websites -- All DOE Office Websites (Extended Search)

9: April 25, 9: April 25, 2005 Medium-Truck Miles by Age to someone by E-mail Share Vehicle Technologies Office: Fact #369: April 25, 2005 Medium-Truck Miles by Age on Facebook Tweet about Vehicle Technologies Office: Fact #369: April 25, 2005 Medium-Truck Miles by Age on Twitter Bookmark Vehicle Technologies Office: Fact #369: April 25, 2005 Medium-Truck Miles by Age on Google Bookmark Vehicle Technologies Office: Fact #369: April 25, 2005 Medium-Truck Miles by Age on Delicious Rank Vehicle Technologies Office: Fact #369: April 25, 2005 Medium-Truck Miles by Age on Digg Find More places to share Vehicle Technologies Office: Fact #369: April 25, 2005 Medium-Truck Miles by Age on AddThis.com... Fact #369: April 25, 2005 Medium-Truck Miles by Age Medium trucks (class 3-6) were driven an average of 14,439 miles in 2002.

348

Information storage medium and method of recording and retrieving information thereon  

DOE Patents (OSTI)

Information storage medium comprising a semiconductor doped with first and second impurities or dopants. Preferably, one of the impurities is introduced by ion implantation. Conductive electrodes are photolithographically formed on the surface of the medium. Information is recorded on the medium by selectively applying a focused laser beam to discrete regions of the medium surface so as to anneal discrete regions of the medium containing lattice defects introduced by the ion-implanted impurity. Information is retrieved from the storage medium by applying a focused laser beam to annealed and non-annealed regions so as to produce a photovoltaic signal at each region.

Marchant, D. D. (Richland, WA); Begej, Stefan (Amherst, MA)

1986-01-01T23:59:59.000Z

349

Medium-Energy Nuclear Data Library (MENDLIB): Phase 1  

SciTech Connect

This document describes an initial step towards the formation of a computerized on-line data library, which would contain published medium-energy experimental data, and which would serve the basic and applied needs of the medium-energy nuclear physics community. The data emphasized in this project will be from measured charged-particle and meson induced nuclear scattering and reactions; an area for which no such data base presently exists. Access to the data will be through a menu-driven program in a user-friendly environment. The project is divided into three phases: Phase 1 involves compilation of Clinton P. Anderson Meson Physics Facility (LAMPF) data from nucleon and pion induced reactions, Phase 2 includes nucleon and pion data from other medium-energy facilities, and Phase 3 includes electron, light-ion, and possibly kaon and anti-nucleon data. The initial goals, the manner in which they would be pursued, and the resources needed to implement Phase 1 (the pilot phase) are discussed in detail. Possible expansion of Phase 1 to attain the envisioned goals of Phase 2 and 3 are briefly outlined. During all stages of the project, input from the community will be sought via the various facility user groups and the American Physical Society Division of Nuclear Physics. It is proposed that the Applied Nuclear Science Group (T-2) of the Los Alamos National Laboratory oversees the development and implementation of this project, and the LAMPF VAX computers be used as the host computers for on-line access.

Siciliano, E.R.; Arthur, E.D.

1987-10-01T23:59:59.000Z

350

An Assessment of Nuclear Isomers as an Energy Storage Medium  

DOE Green Energy (OSTI)

Nuclear Isomers have been suggested as a potential high energy density medium that might be used to store energy. This talk assesses the state of the science supporting key elements of using nuclear isomers in energy storage applications. The focus is on the nuclear isomer {sup 178m2}Hf which has been most widely suggested for energy storage applications. However, the science issues apply to all nuclear isomer. The assessment addresses the production of the nuclear isomer, and inducing the release of the isomer. Also discussed are novel speculations on photon and/or neutron chain reactions, both as a 'pure' material as well as mixed with other materials.

Hartouni, E P

2008-12-08T23:59:59.000Z

351

Coal liquefaction in an inorganic-organic medium  

SciTech Connect

Improved process for liquefaction of coal by contacting pulverized coal in an inorganic-organic medium solvent system containing a ZnCl.sub.2 catalyst, a polar solvent with the structure RX where X is one of the elements O, N, S or P, and R is hydrogen or a lower hydrocarbon radical; the solvent system can contain a hydrogen donor solvent (and must when RX is water) which is immiscible in the ZnCl.sub.2 and is a hydroaromatic hydrocarbon, selected from tetralin, dihydrophenanthrene, dihydroanthracene or a hydrogenated coal derived hydroaromatic hydrocarbon distillate fraction.

Vermeulen, Theodore (Berkeley, CA); Grens, II, Edward A. (Danville, CA); Holten, Ronald R. (El Cerrito, CA)

1982-01-01T23:59:59.000Z

352

Nuclear medium effects in $?(\\bar?)$-nucleus deep inelastic scattering  

E-Print Network (OSTI)

We study the nuclear medium effects in the weak structure functions $F_2(x,Q^2)$ and $F_3(x,Q^2)$ in the deep inelastic neutrino/antineutrino reactions in nuclei. We use a theoretical model for the nuclear spectral functions which incorporates the conventional nuclear effects, such as Fermi motion, binding and nucleon correlations. We also consider the pion and rho meson cloud contributions calculated from a microscopic model for meson-nucleus self-energies. The calculations have been performed using relativistic nuclear spectral functions which include nucleon correlations. Our results are compared with the experimental data of NuTeV and CDHSW.

H. Haider; I. Ruiz Simo; M. Sajjad Athar; M. J. Vicente Vacas

2011-08-16T23:59:59.000Z

353

Alternative Fuels Data Center: Low- and Medium-Speed Vehicle Access to  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

Low- and Medium-Speed Low- and Medium-Speed Vehicle Access to Roadways to someone by E-mail Share Alternative Fuels Data Center: Low- and Medium-Speed Vehicle Access to Roadways on Facebook Tweet about Alternative Fuels Data Center: Low- and Medium-Speed Vehicle Access to Roadways on Twitter Bookmark Alternative Fuels Data Center: Low- and Medium-Speed Vehicle Access to Roadways on Google Bookmark Alternative Fuels Data Center: Low- and Medium-Speed Vehicle Access to Roadways on Delicious Rank Alternative Fuels Data Center: Low- and Medium-Speed Vehicle Access to Roadways on Digg Find More places to share Alternative Fuels Data Center: Low- and Medium-Speed Vehicle Access to Roadways on AddThis.com... More in this section... Federal State Advanced Search All Laws & Incentives Sorted by Type

354

Vehicle Technologies Office: Fact #229: August 12, 2002 Medium and Heavy  

NLE Websites -- All DOE Office Websites (Extended Search)

9: August 12, 9: August 12, 2002 Medium and Heavy Truck Sales to someone by E-mail Share Vehicle Technologies Office: Fact #229: August 12, 2002 Medium and Heavy Truck Sales on Facebook Tweet about Vehicle Technologies Office: Fact #229: August 12, 2002 Medium and Heavy Truck Sales on Twitter Bookmark Vehicle Technologies Office: Fact #229: August 12, 2002 Medium and Heavy Truck Sales on Google Bookmark Vehicle Technologies Office: Fact #229: August 12, 2002 Medium and Heavy Truck Sales on Delicious Rank Vehicle Technologies Office: Fact #229: August 12, 2002 Medium and Heavy Truck Sales on Digg Find More places to share Vehicle Technologies Office: Fact #229: August 12, 2002 Medium and Heavy Truck Sales on AddThis.com... Fact #229: August 12, 2002 Medium and Heavy Truck Sales

355

Alternative Fuels Data Center: Medium-Speed Electric Vehicle (EV) Access to  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

Medium-Speed Electric Medium-Speed Electric Vehicle (EV) Access to Roadways to someone by E-mail Share Alternative Fuels Data Center: Medium-Speed Electric Vehicle (EV) Access to Roadways on Facebook Tweet about Alternative Fuels Data Center: Medium-Speed Electric Vehicle (EV) Access to Roadways on Twitter Bookmark Alternative Fuels Data Center: Medium-Speed Electric Vehicle (EV) Access to Roadways on Google Bookmark Alternative Fuels Data Center: Medium-Speed Electric Vehicle (EV) Access to Roadways on Delicious Rank Alternative Fuels Data Center: Medium-Speed Electric Vehicle (EV) Access to Roadways on Digg Find More places to share Alternative Fuels Data Center: Medium-Speed Electric Vehicle (EV) Access to Roadways on AddThis.com... More in this section... Federal State Advanced Search

356

Alternative Fuels Data Center: Low- and Medium-Speed Vehicle Access to  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

Low- and Medium-Speed Low- and Medium-Speed Vehicle Access to Roadways to someone by E-mail Share Alternative Fuels Data Center: Low- and Medium-Speed Vehicle Access to Roadways on Facebook Tweet about Alternative Fuels Data Center: Low- and Medium-Speed Vehicle Access to Roadways on Twitter Bookmark Alternative Fuels Data Center: Low- and Medium-Speed Vehicle Access to Roadways on Google Bookmark Alternative Fuels Data Center: Low- and Medium-Speed Vehicle Access to Roadways on Delicious Rank Alternative Fuels Data Center: Low- and Medium-Speed Vehicle Access to Roadways on Digg Find More places to share Alternative Fuels Data Center: Low- and Medium-Speed Vehicle Access to Roadways on AddThis.com... More in this section... Federal State Advanced Search All Laws & Incentives Sorted by Type

357

Alternative Fuels Data Center: Medium-Speed Electric Vehicle (EV) Access to  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

Medium-Speed Electric Medium-Speed Electric Vehicle (EV) Access to Roadways to someone by E-mail Share Alternative Fuels Data Center: Medium-Speed Electric Vehicle (EV) Access to Roadways on Facebook Tweet about Alternative Fuels Data Center: Medium-Speed Electric Vehicle (EV) Access to Roadways on Twitter Bookmark Alternative Fuels Data Center: Medium-Speed Electric Vehicle (EV) Access to Roadways on Google Bookmark Alternative Fuels Data Center: Medium-Speed Electric Vehicle (EV) Access to Roadways on Delicious Rank Alternative Fuels Data Center: Medium-Speed Electric Vehicle (EV) Access to Roadways on Digg Find More places to share Alternative Fuels Data Center: Medium-Speed Electric Vehicle (EV) Access to Roadways on AddThis.com... More in this section... Federal State Advanced Search

358

Southern Hemisphere Medium-Range Forecast Skill and Predictability: A Comparison of Two Operational Models  

Science Conference Proceedings (OSTI)

The skill of two global numerical weather prediction models, the National Centers for Environmental Prediction (NCEP) medium-range forecast model and the European Centre for Medium-Range Weather Forecasts (ECMWF) operational model, has been ...

James A. Renwick; Craig S. Thompson

2001-09-01T23:59:59.000Z

359

Medium modification of the proton form-factor  

SciTech Connect

I argue that the double ratio of proton-recoil polarization-transfer coefficients, P{prime}{sub x} and P{prime}{sub z}, of the quasielastic {sup 4}He(e,e{prime}p){sup 3}H reaction with respect to the elastic {sup 1}H(e,e{prime}p) reaction is sensitive to possible medium modifications of the proton form factor in {sup 4}He. Recent measurements at both Mainz and Jefferson Lab of this double ratio at four-momentum transfers squared between 0.4 (GeV/c){sup 2} and 2.6 (GeV/c){sup 2} are discussed. I show that the data challenge state-of-the-art conventional meson-nucleon calculations, as these are unable to describe the results. The data hint at the need to include medium modifications of the proton form factor, as predicted by a quark-meson-coupling model, in the calculations. A recently approved follow-up experiment at a Q{sup 2} of 0.8 (GeV/c){sup 2} and 1.3 (GeV/c){sup 2} with unprecedented precision will provide one of the most stringent tests of the applicability of various calculations.

Steffen Strauch

2004-02-01T23:59:59.000Z

360

Thermal Instability and Magnetic Pressure in the Turbulent Interstellar Medium  

E-Print Network (OSTI)

We review recent results on the nonlinear development of thermal instability (TI) in the context of the turbulent atomic interstellar medium (ISM). First, we discuss the growth of entropy perturbations in isolation, as a function of the ratio \\eta of the cooling time to the dynamical crossing time. For \\eta~ 0.3) and occurs at scales with \\eta>1. We then consider the behavior of magnetic pressure in turbulent regimes. We propose that the reported lack of correlation between the magnetic pressure and the density is a consequence of the different scaling of the magnetic pressure with density for the slow and fast modes of nonlinear MHD waves. This implies that magnetic ``pressure'' is not a suitable candidate for supplementing thermal pressure in the presence of TI, and that polytropic descriptions of it are probably not adequate in the fully turbulent regime. Finally, we consider TI in a turbulent ISM-like medium. We find that the flow does not exhibit sharp phase transitions, as would be expected in classical...

Vzquez-Semadeni, E; Passot, T; Snchez-Salcedo, F J; Vazquez-Semadeni, Enrique; Gazol, Adriana; Passot, Thierry; Sanchez-Salcedo, Javier

2003-01-01T23:59:59.000Z

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


361

Process for modifying the metal ion sorption capacity of a medium  

DOE Patents (OSTI)

A process for modifying a medium is disclosed that includes treating a medium having a metal ion sorption capacity with a solution that includes: A) an agent capable of forming a complex with metal ions; and B) ions selected from the group consisting of sodium ions, potassium ions, magnesium ions, and combinations thereof, to create a medium having an increased capacity to sorb metal ions relative to the untreated medium.

Lundquist, Susan H. (White Bear Township, MN)

2002-01-01T23:59:59.000Z

362

Effects of dielectric permittivity and viscosity on diffusion-controlled e/sub s//sup -/ + S reactions in alcoholwater mixed solvents  

Science Conference Proceedings (OSTI)

The rate constants k/sub 2/ of nearly diffusion controlled reactions of solvated electrons with solute are related to the electrohydrodynamic properties of the solvent; the viscosity eta and dielectric permittivity epsilon of the bulk solvent. Data for reactions with neutral (polar and nonpolar) and charged solutes in methanolwater and ethanolwater mixed solvents are analyzed to display the effects of eta and epsilon. The data support earlier reports that the diffusion coefficients D(e/sub s//sup -/) approx. = D(RO/sup -/) in alcohol and water, but why this is so remains a question

Maham, Y.; Freeman, G.R.

1988-03-24T23:59:59.000Z

363

Method of dispensing droplets to penetration-resistive mediums. [Patent application  

DOE Patents (OSTI)

Uniform, monosized microspheroids are produced in a gelation medium characterized by a high resistance to surface penetration by reducing the effect of impact on entry of the droplets into the medium by contacting the droplet with a stream of medium and by introducing the resulting stream into a gelation column.

Fowler, V.L.; Ryon, A.D.; Haas, P.A.

1982-06-10T23:59:59.000Z

364

Gravity currents in a porous medium at an inclined plane  

E-Print Network (OSTI)

We consider the release from a point source of relatively heavy fluid into a porous saturated medium above an impermeable slope. We consider the case where the volume of the resulting gravity current increases with time like $t^\\alpha$ and show that for $\\alpha3$, this situation is reversed with spreading occurring predominantly downslope for short times. The governing equations admit similarity solutions whose scaling behaviour we determine, with the full similarity form being evaluated by numerical computations of the governing partial differential equation. We find that the results of these analyses are in good quantitative agreement with a series of laboratory experiments. Finally, we briefly discuss the implications of our work for the sequestration of carbon dioxide in aquifers with a sloping, impermeable cap.

Vella, D; Huppert, Herbert E.; Vella, Dominic

2006-01-01T23:59:59.000Z

365

Soot blower using fuel gas as blowing medium  

DOE Patents (OSTI)

A soot blower assembly (10) for use in combination with a coal gasifier (14). The soot blower assembly is adapted for use in the hot combustible product gas generated in the gasifier as the blowing medium. The soot blower lance (20) and the drive means (30) by which it is moved into and out of the gasifier is housed in a gas tight enclosure (40) which completely surrounds the combination. The interior of the enclosure (40) is pressurized by an inert gas to a pressure level higher than that present in the gasifier so that any combustible product gas leaking from the soot blower lance (20) is forced into the gasifier rather than accumulating within the enclosure.

Tanca, Michael C. (Tariffville, CT)

1982-01-01T23:59:59.000Z

366

Geochemistry of Magnesium Silicate Carbonation in an Aqueous Medium  

NLE Websites -- All DOE Office Websites (Extended Search)

Geochemistry of Magnesium Silicate Geochemistry of Magnesium Silicate Carbonation in an Aqueous Medium (Carbon Mineralization) Jon Benner, Deb Bergfeld, Dave Bish, Darrin Byler, Bill Carey, Steve Chipera, George Guthrie, Klaus Lackner, Hans Ziock Hydrology, Geochemistry, Geology Group Los Alamos National Laboratory LA-UR-01-4206 Approved for public release; distribution is unlimited George Guthrie gguthrie@lanl.gov 505-665-6340 Mineral Carbonation: Conversion of CO 2 into Carbonates * alkali carbonates too soluble * alkaline earth carbonates ideal sources: Ca-silicates (feldspar) Mg-silicates (olivine, serpentine, clays) Mg 2+ + CO 3 2- => MgCO 3 Mg 2 SiO 4 + 4H + => 2Mg 2+ + SiO 2(aq) Ultramafic rocks are an abundant Mg source (~0.2 km) 3 serpentine / GW-yr Challenges for Mineral-Carbonation

367

MERIX - medium resolution (R)IXS at the APS  

NLE Websites -- All DOE Office Websites (Extended Search)

MERIX MERIX MERIX is a medium energy resolution 6 circle diffractometer for non-resonant and resonant inelastic x-ray measurements. Detect Strip detector: dramatically more collected phonons at a given energy resolution compared to conventional detectors (principle of operation). Pin diode detector mounted on the two theta arm for final sample alignment Fluorescence detector: for absorption measurements on samples Spot size: focused horizontal x vertical = 45 um x 6 um, unfocussed = 2.2 mm x 0.4 mm Momentum resolution varies with incident energy but the angular acceptance of the analyzer is 5.7 degrees. This can be reduced with slits. Maximum two-theta is 90 (horizontal) and 62 (vertical). chi range is -15 to 20 or 75 to 110 (depending on which phi circle is used)

368

Coherent scattering by a spherical medium of resonant atoms  

Science Conference Proceedings (OSTI)

We consider the problem of coherent resonant scattering of electromagnetic waves by a spherical medium of two-level atoms. The frequency dependence of the scattering amplitudes and cross sections reveals a complex structure of narrow peaks and dips. We relate these scattering resonances to the cooperative emission resonances characteristic of a sphere. We find the scattering to show considerable interference between the electric and magnetic multipole contributions, particularly in the lower multipole orders. This interference tends to enhance anisotropies in the differential scattering cross section even for small spheres. For such spheres, the peak values of the resonant contributions of the low-order multipoles to the total scattering cross section can increase with multipole order, in contrast to the usual decrease seen in nonresonant scattering.

Prasad, Sudhakar; Glauber, Roy J. [Department of Physics and Astronomy, University of New Mexico, Albuquerque, New Mexico 87131 (United States); Lyman Laboratory of Physics, Harvard University, Cambridge, Massachusetts 02138 (United States)

2011-06-15T23:59:59.000Z

369

Mission-Aware Medium Access Control in Random Access Networks  

E-Print Network (OSTI)

We study mission-critical networking in wireless communication networks, where network users are subject to critical events such as emergencies and crises. If a critical event occurs to a user, the user needs to send necessary information for help as early as possible. However, most existing medium access control (MAC) protocols are not adequate to meet the urgent need for information transmission by users in a critical situation. In this paer, we propose a novel class of MAC protocols that utilize available past information as well as current information. Our proposed protocols are mission-aware since they prescribe different transmission decision rules to users in different situations. We show that the proposed protocols perform well not only when the system faces a critical situation but also when there is no critical situation. By utilizing past information, the proposed protocols coordinate transmissions by users to achieve high throughput in the normal phase of operation and to let a user in a critical ...

Park, Jaeok

2009-01-01T23:59:59.000Z

370

The chemistry of transient microstructure in the diffuse interstellar medium  

E-Print Network (OSTI)

Transient microstructure in the diffuse interstellar medium has been observed towards galactic and extragalactic sources for decades, usually in lines of atoms and ions, and, more recently, in molecular lines. Evidently, there is a molecular component to the transient microstructure. In this paper we explore the chemistry that may arise in such microstructure. We use a PDR code to model the conditions of relatively high density, low temperature, very low visual extinction and very short elapsed time that are appropriate for these objects. We find that there is a well defined region of parameter space where detectable abundances of molecular species might be found. The best matching models are those where the interstellar microstructure is young (10^4 cm^-3).

T. A. Bell; S. Viti; D. A. Williams; I. A. Crawford; R. J. Price

2004-12-13T23:59:59.000Z

371

Scaling Relations for Turbulence in Multiphase Interstellar Medium  

E-Print Network (OSTI)

We simulate the dynamics of phase transition in radiatively cooling interstellar gas in three dimensions with a high order hydrodynamic method. We have previously shown (Kritsuk & Norman 2002a) in simulations with non-equilibrium initial conditions that thermal instability induces supersonic turbulence as a by-product of the phase transition which leads to formation of multiphase medium. We rely on a generalization of the She & Leveque (1994) model to study velocity scaling relations in this decaying turbulence and compare those with analogous results for compressible isothermal turbulence. Since radiative cooling promotes nonlinear instabilities in highly supersonic flows, turbulence in our simulations tends to be more intermittent than in the isothermal case. Hausdorff dimension of the most singular dissipative structures, D, can be as high as 2.3, while in supersonic isothermal turbulence D is limited by a more primitive nature of dissipation (shocks): D<=2. We also show that single-phase veloci...

Kritsuk, A G; Kritsuk, Alexei G.; Norman, Michael L.

2004-01-01T23:59:59.000Z

372

Nuclear medium effects in Drell-Yan process  

E-Print Network (OSTI)

We study nuclear medium effects in Drell-Yan processes at small target x using quark parton distribution functions and nucleon structure functions for a bound nucleon calculated in a microscopic nuclear model which takes into account the effect of Fermi motion, nuclear binding and nucleon correlations through a relativistic spectral function. The contributions of $\\pi$ and $\\rho$ mesons, target mass corrections and nuclear shadowing are also included. The results are compared with the theoretical and experimental results. The model is able to successfully explain the low target x results of E772 and E866 Drell-Yan experiments and is applicable to the forthcoming experimental analysis of E906 Sea Quest experiment at Fermi Lab.

H. Haider; M. Sajjad Athar; I. Ruiz Simo; S. K. Singh

2013-06-17T23:59:59.000Z

373

Self-induced transparency in a dispersive medium  

Science Conference Proceedings (OSTI)

The evolution of the electromagnetic field in a two-level medium occurring in a matrix with finite response time has been studied. An integrable variant of the Maxwell-Bloch equations with allowance for nonlinear dispersion is derived and solved using the inverse scattering problem. It is shown that the nonlinear dispersion caused by the finite response time of the matrix yields a new possibility of controlling soliton parameters. A particular case of the constructed model can be used to describe field pulses in the parameter domain that occurs between the regions of applicability of the quasi-monochromatic approximation and the approximation of unidirectional propagation of pulses with durations on the order of the oscillation period.

Zabolotskii, A. A., E-mail: zabolotskii@iae.nsk.su [Russian Academy of Sciences, Institute of Automatics and Electrometry, Siberian Branch (Russian Federation)

2012-07-15T23:59:59.000Z

374

Medium Power Lead Alloy Reactors: Missions for this Reactor Technology  

Science Conference Proceedings (OSTI)

A multiyear project at the Idaho National Engineering and Environmental Laboratory and the Massachusetts Institute of Technology investigated the potential of medium-power lead-alloy-cooled technology to perform two missions: (1) the production of low-cost electricity and (2) the burning of actinides from light water reactor (LWR) spent fuel. The goal of achieving a high power level to enhance economic performance simultaneously with adoption of passive decay heat removal and modularity capabilities resulted in designs in the range of 600-800 MW(thermal), which we classify as a medium power level compared to the lower [~100 MW(thermal)] and higher [2800 MW(thermal)] power ratings of other lead-alloy-cooled designs. The plant design that was developed shows promise of achieving all the Generation-IV goals for future nuclear energy systems: sustainable energy generation, low overnight capital cost, a very low likelihood and degree of core damage during any conceivable accident, and a proliferation-resistant fuel cycle. The reactor and fuel cycle designs that evolved to achieve these missions and goals resulted from study of the following key trade-offs: waste reduction versus reactor safety, waste reduction versus cost, and cost versus proliferation resistance. Secondary trade-offs that were also considered were monolithic versus modular design, active versus passive safety systems, forced versus natural circulation, alternative power conversion cycles, and lead versus lead-bismuth coolant. These studies led to a selection of a common modular design with forced convection cooling, passive decay heat removal, and a supercritical CO2 power cycle for all our reactor concepts. However, the concepts adopt different core designs to optimize the achievement of the two missions. For the low-cost electricity production mission, a design approach based on fueling with low enriched uranium operating without costly reprocessing in a once-through cycle was pursued to achieve a long operating cycle length by enhancing in-core breeding. For the actinide-burning mission three design variants were produced: (1) a fertile-free actinide burner, i.e., a single-tier strategy, (2) a minor actinide burner with plutonium burned in the LWR fleet, i.e., a two-tier strategy, and (3) an actinide burner with characteristics balanced to also favor economic electricity production.

Neil E. Todreas; Philip E. MacDonald; Pavel Hejzlar; Jacopo Buongiorno; Eric Loewen

2004-09-01T23:59:59.000Z

375

Densities and viscosities for binary mixtures of N-methyldiethanolamine + triethylene glycol monomethyl ether from 25 C to 70 C and N-methyldiethanolamine + ethanol mixtures at 40 C  

Science Conference Proceedings (OSTI)

Recent studies done on the absorption and desorption of acid gases (CO{sub 2}, H{sub 2}S) from natural gas, petroleum, and ammonia synthesis streams have shown that aqueous solutions of N-methyldiethanolamine (MDEA) can be used effectively for the selective removal of H{sub 2}S. This paper reports the measured values of the density and viscosity of binary mixtures of N-methyldiethanolamine (MDEA) and triethylene glycol monomethyl ether (TEGMME) at five temperatures in the range 25 C to 70 C over the whole concentration range. The authors also report the density and viscosity of the binary mixture MDEA + ethanol at 40 C. The results are compared with data for aqueous mixtures and other alkanolamines when these are available. The derived excess molar volumes and viscosity deviations were correlated as a function of composition. The Grunberg-Nissan interaction energy constants are also reported.

Henni, A.; Maham, Y.; Tontiwachwuthikul, P.; Chakma, A.; Mather, A.E.

2000-04-01T23:59:59.000Z

376

Heating of the Intergalactic Medium by Primordial Miniquasars  

E-Print Network (OSTI)

A simple analytical model is used to calculate the X-ray heating of the IGM for a range of black hole masses. This process is efficient enough to decouple the spin temperature of the intergalactic medium from the cosmic microwave background (CMB) temperature and produce a differential brightness temperature of the order of $\\sim 5-20 \\mathrm{mK}$ out to distances as large as a few co-moving Mpc, depending on the redshift, black hole mass and lifetime. We explore the influence of two types of black holes, those with and without ionising UV radiation. The results of the simple analytical model are compared to those of a full spherically symmetric radiative transfer code. Two simple scenarios are proposed for the formation and evolution of black hole mass density in the Universe. The first considers an intermediate mass black hole that form as an end-product of Population III stars, whereas the second considers super-massive black holes that form directly through the collapse of massive halos with low spin parameter. These scenarios are shown not to violate any of the observational constraints, yet produce enough X-ray photons to decouple the spin-temperature from that of the CMB. This is an important issue for future high redshift 21 cm observations.

Saleem Zaroubi; Rajat M. Thomas; Naoshi Sugiyama; Joe Silk

2006-09-06T23:59:59.000Z

377

Commercialization of Medium Voltage HTS Triax TM Cable Systems  

SciTech Connect

The original project scope that was established in 2007 aimed to install a 1,700 meter (1.1 mile) medium voltage HTS Triax{TM} cable system into the utility grid in New Orleans, LA. In 2010, however, the utility partner withdrew from the project, so the 1,700 meter cable installation was cancelled and the scope of work was reduced. The work then concentrated on the specific barriers to commercialization of HTS cable technology. The modified scope included long-length HTS cable design and testing, high voltage factory test development, optimized cooling system development, and HTS cable life-cycle analysis. In 2012, Southwire again analyzed the market for HTS cables and deemed the near term market acceptance to be low. The scope of work was further reduced to the completion of tasks already started and to testing of the existing HTS cable system in Columbus, OH. The work completed under the project included: Long-length cable modeling and analysis HTS wire evaluation and testing Cable testing for AC losses Optimized cooling system design Life cycle testing of the HTS cable in Columbus, OH Project management. The 200 meter long HTS Triax{TM} cable in Columbus, OH was incorporated into the project under the initial scope changes as a test bed for life cycle testing as well as the site for an optimized HTS cable cooling system. The Columbus cable utilizes the HTS TriaxTM design, so it provided an economical tool for these of the project tasks.

Knoll, David

2012-12-31T23:59:59.000Z

378

Neutrino-induced pion production from nuclei at medium energies  

E-Print Network (OSTI)

We present a fully relativistic formalism for describing neutrino-induced $\\Delta$-mediated single-pion production from nuclei. We assess the ambiguities stemming from the $\\Delta$ interactions. Variations in the cross sections of over 10% are observed, depending on whether or not magnetic-dipole dominance is assumed to extract the vector form factors. These uncertainties have a direct impact on the accuracy with which the axial-vector form factors can be extracted. Different predictions for $C_5^A(Q^2)$ induce up to 40-50% effects on the $\\Delta$-production cross sections. To describe the nucleus, we turn to a relativistic plane-wave impulse approximation (RPWIA) using realistic bound-state wave functions derived in the Hartree approximation to the $\\sigma$-$\\omega$ Walecka model. For neutrino energies larger than 1 GeV, we show that a relativistic Fermi-gas model with appropriate binding-energy correction produces comparable results as the RPWIA which naturally includes Fermi motion, nuclear-binding effects and the Pauli exclusion principle. Including $\\Delta$ medium modifications yields a 20 to 25% reduction of the RPWIA cross section. The model presented in this work can be naturally extended to include the effect of final-state interactions in a relativistic and quantum-mechanical way. Guided by recent neutrino-oscillation experiments, such as MiniBooNE and K2K, and future efforts like MINER$\

C. Praet; O. Lalakulich; N. Jachowicz; J. Ryckebusch

2008-04-17T23:59:59.000Z

379

Magnetic and electric contributions to the energy loss in a dynamical QCD medium  

E-Print Network (OSTI)

The computation of radiative energy loss in a finite size QCD medium with dynamical constituents is a key ingredient for obtaining reliable predictions for jet quenching in ultra-relativistic heavy ion collisions. It was previously shown that energy loss in dynamical QCD medium is significantly higher compared to static QCD medium. To understand this difference, we here analyze magnetic and electric contributions to energy loss in dynamical QCD medium. We find that the significantly higher energy loss in the dynamical case is entirely due to appearance of magnetic contribution in the dynamical medium. While for asymptotically high energies, the energy loss in static and dynamical medium approach the same value, we find that the physical origin of the energy loss in these two cases is different.

Magdalena Djordjevic

2011-05-21T23:59:59.000Z

380

Small and Medium-Sized Building Automation and Control System Needs Scoping  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Small and Medium-Sized Building Automation Small and Medium-Sized Building Automation and Control System Needs Scoping Study Small and Medium-Sized Building Automation and Control System Needs Scoping Study The U.S. Department of Energy (DOE) is currently conducting a scoping research study of small- and medium-sized building automation and control system needs. Project Description This project seeks to develop a scoping study to identify the building automation system needs-such as end-uses and systems to be controlled-and control capabilities for small- and medium-sized buildings. Researchers also plan to develop a case study to show that building controls for small- and medium-sized buildings can be cost-effective. The monitoring needs to ensure proper and persistent operations will also be identified.

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


381

Alternative Fuels Data Center: Low-Speed Vehicle and Medium-Speed Electric  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

Low-Speed Vehicle and Low-Speed Vehicle and Medium-Speed Electric Vehicle (EV) Access to Roadways to someone by E-mail Share Alternative Fuels Data Center: Low-Speed Vehicle and Medium-Speed Electric Vehicle (EV) Access to Roadways on Facebook Tweet about Alternative Fuels Data Center: Low-Speed Vehicle and Medium-Speed Electric Vehicle (EV) Access to Roadways on Twitter Bookmark Alternative Fuels Data Center: Low-Speed Vehicle and Medium-Speed Electric Vehicle (EV) Access to Roadways on Google Bookmark Alternative Fuels Data Center: Low-Speed Vehicle and Medium-Speed Electric Vehicle (EV) Access to Roadways on Delicious Rank Alternative Fuels Data Center: Low-Speed Vehicle and Medium-Speed Electric Vehicle (EV) Access to Roadways on Digg Find More places to share Alternative Fuels Data Center: Low-Speed

382

Vehicle Technologies Office: Fact #382: July 25, 2005 New Medium and Heavy  

NLE Websites -- All DOE Office Websites (Extended Search)

2: July 25, 2005 2: July 25, 2005 New Medium and Heavy Truck Registrations by Fuel Type, 2004 to someone by E-mail Share Vehicle Technologies Office: Fact #382: July 25, 2005 New Medium and Heavy Truck Registrations by Fuel Type, 2004 on Facebook Tweet about Vehicle Technologies Office: Fact #382: July 25, 2005 New Medium and Heavy Truck Registrations by Fuel Type, 2004 on Twitter Bookmark Vehicle Technologies Office: Fact #382: July 25, 2005 New Medium and Heavy Truck Registrations by Fuel Type, 2004 on Google Bookmark Vehicle Technologies Office: Fact #382: July 25, 2005 New Medium and Heavy Truck Registrations by Fuel Type, 2004 on Delicious Rank Vehicle Technologies Office: Fact #382: July 25, 2005 New Medium and Heavy Truck Registrations by Fuel Type, 2004 on Digg Find More places to share Vehicle Technologies Office: Fact #382:

383

Energy and momentum deposited into a QCD medium by a jet shower  

E-Print Network (OSTI)

A hard virtual parton moving through a dense QCD medium loses energy and momentum by a series of radiative emissions and elastic scatterings. Unlike radiative energy loss, elastic exchanges transfer energy and momentum directly to the constituents of the medium. We present a calculation of this energy and momentum deposited in the medium after the passage of a virtual jet which decomposes into a partonic shower. Calculations are carried out in the higher-twist (HT) formalism of energy loss, which offers a natural extension to compute the amplification of the energy and momentum transfer to the medium due to the produced shower of partons, each of which transfers energy and momentum to the medium by elastic exchanges. Further assuming that the energy-momentum deposited is swiftly equilibrated, we also compute the hydro-dynamical response of the medium to the energy deposited by a jet and obtain a much enhanced conical pattern.

Qin, G -Y; Song, H; Heinz, U

2009-01-01T23:59:59.000Z

384

Small- and Medium-Size Building Automation and Control System Needs: Scoping Study  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Small- and Medium-Size Building Automation and Control System Small- and Medium-Size Building Automation and Control System Needs: Scoping Study Small- and Medium-Size Building Automation and Control System Needs: Scoping Study Michael Brambley, Ph.D. Pacific Northwest National Laboratory Michael.Brambley@pnnl.gov (509) 375-6875 April 2, 2013 2 | Building Technologies Office eere.energy.gov Problem Statement * Less than 10% of the buildings have building automation systems (BAS) * Over 90% of buildings stock either: - small (<5,000 sf) or - medium-sized (between 5,000 sf and 50,000 sf)

385

Small- and Medium-Size Building Automation and Control System Needs: Scoping Study  

NLE Websites -- All DOE Office Websites (Extended Search)

Small- and Medium-Size Building Automation and Control System Small- and Medium-Size Building Automation and Control System Needs: Scoping Study Small- and Medium-Size Building Automation and Control System Needs: Scoping Study Michael Brambley, Ph.D. Pacific Northwest National Laboratory Michael.Brambley@pnnl.gov (509) 375-6875 April 2, 2013 2 | Building Technologies Office eere.energy.gov Problem Statement * Less than 10% of the buildings have building automation systems (BAS) * Over 90% of buildings stock either: - small (<5,000 sf) or - medium-sized (between 5,000 sf and 50,000 sf)

386

In-Use Performance Results of Medium Duty Electric Vehicles (Presentation)  

DOE Green Energy (OSTI)

This presentation describes a DOE program to monitor and report on vehicle performance and energy utilization of medium-duty and heavy-duty electric vehicles.

Walkowicz, K.

2012-07-01T23:59:59.000Z

387

Dyadic Green Function for an Electromagnetic Medium Inspired by General Relativity  

E-Print Network (OSTI)

The dyadic Green function for a homogeneous electromagnetic medium inspired by the spatiotemporally nonhomogeneous constitutive equations of gravitationally affected vacuum is derived.

Akhlesh Lakhtakia; Tom G. Mackay

2005-11-08T23:59:59.000Z

388

Plasma Wave Properties of the Schwarzschild Magnetosphere in a Veselago Medium  

E-Print Network (OSTI)

We re-formulate the 3+1 GRMHD equations for the Schwarzschild black hole in a Veselago medium. Linear perturbation in rotating (non-magnetized and magnetized) plasma is introduced and their Fourier analysis is considered. We discuss wave properties with the help of wave vector, refractive index and change in refractive index in the form of graphs. It is concluded that some waves move away from the event horizon in this unusual medium. We conclude that for the rotating non-magnetized plasma, our results confirm the presence of Veselago medium while the rotating magnetized plasma does not provide any evidence for this medium.

M. Sharif; Noureen Mukhtar

2010-06-18T23:59:59.000Z

389

Measurement Services for Low-to-Medium Energy X-rays  

Science Conference Proceedings (OSTI)

Development of measurement services to calibratewavelength-dispersive detectors and spectrometers for low- to medium-energy x rays (10 to 300 ...

2010-10-05T23:59:59.000Z

390

Clean Cities' Guide to Alternative Fuel and Advanced Medium- and Heavy-Duty Vehicles (Brochure)  

DOE Green Energy (OSTI)

Guide describes the alternative fuel and advanced medium- and heavy-duty vehicles available on the market, including buses, vans, refuse haulers, and more.

Not Available

2010-09-01T23:59:59.000Z

391

Molecular gas in the intergalactic medium of Stephan's Quintet  

E-Print Network (OSTI)

Stephan's Quintet (SQ) is a Hickson Compact Group well known for its complex dynamical and star formation history and its rich intergalactic medium (IGM). In order to study the extent, origin and fate of the intergalactic molecular gas and its relation to the formation of stars outside galaxies and Tidal Dwarf Galaxies (TDGs), we mapped with the IRAM 30m antenna carbon monoxide (CO) towards several regions of the IGM in SQ. In two star forming regions (SQ A and B), situated in very different environments, we detected unusually large amounts of molecular gas ($3.1 \\times 10^9$ \\msun and $7 \\times 10^8$ \\msun, respectively), covering an extended area (between 15 and 25 kpc). In both regions the CO clouds have different properties and may be of a distinct nature. The integrated CO line of SQ A is in particular much wider than in SQ B. Its CO spectrum shows emission at two velocities (6000 and 6700 \\kms), coincident with two HI lines, with the stronger emission at 6000 \\kms being very smoothly distributed without a distinct peak in the starburst region. In SQ B the CO emission coincides with that of tracers of star formation (\\halpha, near-infrared 15 $\\mu$m and radio continuum). The CO peak lies close to the HI peak towards a steep HI gradient. This is indicating that the molecular gas is forming in-situ, with subsequent star formation taking place. The star forming region at SQ B is the object in SQ that most resembles a TDG.

Ute Lisenfeld; Stephane Leon; Jonathan Braine; Pierre-Alain Duc; Vassilis Charmandaris; Elias Brinks

2002-10-01T23:59:59.000Z

392

Properties of O VI Absorption in the Local Interstellar Medium  

E-Print Network (OSTI)

We report on the properties of LISM O VI absorption observed with 20 km/s resolution FUSE observations of 39 white dwarfs (WDs) ranging in distance from 37 to 230 pc with a median distance of 109 pc. LISM O VI is detected with >2sigma significance along 24 of 39 lines of sight. The column densities range from log N(O VI) = 12.38 to 13.60 with a median value of 13.10. The line of sight volume density, n(O VI) = N(O VI)/d exhibits a large dispersion ranging from (0.68 to 13.0)x10(-8) cm(-3) with an average value 3.6x10(-8) cm(-3) twice larger than found for more distant sight lines in the Galactic disk. The narrowest profiles are consistent with thermal Doppler broadening of O VI near its temperature of peak abundance, 2.8x10(5) K. Comparison of the average velocities of O VI and C II absorption reveals 10 cases where the O VI absorption is closely aligned with the C II absorption as expected if the O VI is formed in a condensing interface between the cool and warm absorption and a hot exterior gas. The comparison also reveals 13 cases where O VI absorption is displaced to positive velocity by 7 to 29 km/s from the average velocity of C II. The positive velocity O VI appears to be tracing the evaporative flow of O VI from a young interface between warm gas and a hot exterior medium. However, it is possible the positive velocity O VI is instead tracing cooling hot Local Bubble (LB) gas. The properties of the O VI absorption in the LISM are broadly consistent with the expectations of the theory of conductive interfaces caught in the old condensing phase and possibly in the young evaporative phase of their evolution.

Blair D. Savage; Nicholas Lehner

2005-09-15T23:59:59.000Z

393

TYPE Ia SUPERNOVAE STRONGLY INTERACTING WITH THEIR CIRCUMSTELLAR MEDIUM  

SciTech Connect

Owing to their utility for measurements of cosmic acceleration, Type Ia supernovae (SNe Ia) are perhaps the best-studied class of SNe, yet the progenitor systems of these explosions largely remain a mystery. A rare subclass of SNe Ia shows evidence of strong interaction with their circumstellar medium (CSM), and in particular, a hydrogen-rich CSM; we refer to them as SNe Ia-CSM. In the first systematic search for such systems, we have identified 16 SNe Ia-CSM, and here we present new spectra of 13 of them. Six SNe Ia-CSM have been well studied previously, three were previously known but are analyzed in depth for the first time here, and seven are new discoveries from the Palomar Transient Factory. The spectra of all SNe Ia-CSM are dominated by H{alpha} emission (with widths of {approx}2000 km s{sup -1}) and exhibit large H{alpha}/H{beta} intensity ratios (perhaps due to collisional excitation of hydrogen via the SN ejecta overtaking slower-moving CSM shells); moreover, they have an almost complete lack of He I emission. They also show possible evidence of dust formation through a decrease in the red wing of H{alpha} 75-100 days past maximum brightness, and nearly all SNe Ia-CSM exhibit strong Na I D absorption from the host galaxy. The absolute magnitudes (uncorrected for host-galaxy extinction) of SNe Ia-CSM are found to be -21.3 mag {<=} M{sub R} {<=} -19 mag, and they also seem to show ultraviolet emission at early times and strong infrared emission at late times (but no detected radio or X-ray emission). Finally, the host galaxies of SNe Ia-CSM are all late-type spirals similar to the Milky Way, or dwarf irregulars like the Large Magellanic Cloud, which implies that these objects come from a relatively young stellar population. This work represents the most detailed analysis of the SN Ia-CSM class to date.

Silverman, Jeffrey M. [Department of Astronomy, University of Texas, Austin, TX 78712-0259 (United States); Nugent, Peter E. [Lawrence Berkeley National Laboratory, Berkeley, CA 94720 (United States); Gal-Yam, Avishay; Arcavi, Iair; Ben-Ami, Sagi [Benoziyo Center for Astrophysics, Weizmann Institute of Science, Rehovot 76100 (Israel); Sullivan, Mark [School of Physics and Astronomy, University of Southampton, Southampton SO17 1BJ (United Kingdom); Howell, D. Andrew; Graham, Melissa L. [Las Cumbres Observatory Global Telescope Network, Goleta, CA 93117 (United States); Filippenko, Alexei V.; Bloom, Joshua S.; Cenko, S. Bradley; Clubb, Kelsey I. [Department of Astronomy, University of California, Berkeley, CA 94720-3411 (United States); Cao, Yi; Horesh, Assaf; Kulkarni, Shrinivas R. [Cahill Center for Astrophysics, California Institute of Technology, Pasadena, CA 91125 (United States); Chornock, Ryan; Foley, Ryan J. [Harvard-Smithsonian Center for Astrophysics, Cambridge, MA 02138 (United States); Coil, Alison L. [Department of Physics, University of California, San Diego, La Jolla, CA 92093 (United States); Griffith, Christopher V. [Department of Astronomy and Astrophysics, The Pennsylvania State University, University Park, PA 16802 (United States); Kasliwal, Mansi M., E-mail: jsilverman@astro.as.utexas.edu [Observatories of the Carnegie Institution of Science, Pasadena, CA 91101 (United States); and others

2013-07-01T23:59:59.000Z

394

Abundant molecular gas in the intergalactic medium of Stephan's Quintet  

E-Print Network (OSTI)

Stephan's Quintet (SQ) is a system consisting of at least four interacting galaxies which is well known for its complex dynamical and star formation history. It possesses a rich intergalactic medium (IGM), where hydrogen clouds, both atomic and molecular, associated with two starbursts (refered to as SQ A and B) have been found. In order to study the extent, origin and fate of the intergalactic molecular gas and its relation to the formation of stars outside galaxies and Tidal Dwarf Galaxies (TDGs), we mapped with the IRAM 30m antenna the carbon monoxide (CO) towards several regions of the IGM in SQ. In both SQ A and B, we detected unusually large amounts of molecular gas (3.1 times 10^9 msun and 7 times 10^8 msun, respectively). In contrast, no significant CO detection was achieved towards HII regions south of the pair NGC 7318a/b despite their high H alpha luminosities. The molecular gas is very extended in both SQ A and SQ B, over areas of between 15 and 25 kpc. The CO clouds seem to have otherwise different properties and may be of a different nature. The integrated CO line of SQ A is in particular much wider than in SQ B. Its CO spectrum shows emission at two velocities (6000 and 6700 km s^{-1}) that are coincident with two HI lines. The strongest emission at 6000 km s^{-1} is however spatially offset from the HI emission and situated on a ridge south-east of the starburst region. In SQ B the CO emission coincides with that of tracers of star formation (halpha, 15 mu m and radio continuum). The CO peak lies slightly offset from the HI peak towards a steep HI gradient. This is indicating that the molecular gas is forming in-situ, possibly in a region of compressed HI, with subsequent star formation. The star forming region at SQ B is the object in SQ that most resembles a TDG.

Ute Lisenfeld; Jonathan Braine; Pierre-Alain Duc; Stephane Leon; Vassilis Charmandaris; Elias Brinks

2002-08-28T23:59:59.000Z

395

Surface Oxidation and Dissolution of Metal Nanocatalysts in Acid Medium  

E-Print Network (OSTI)

One of the most important challenges in low-temperature fuel cell technology is improving the catalytic efficiency at the electrode-catalyst where the oxygen reduction reaction (ORR) occurs. Platinum is the best pure catalyst for this reaction but its high cost and scarcity hinder the commercial implementation of fuel cells in automobiles. Pt-based alloys are promising alternatives to substitute platinum while maintaining the efficiency and life-time of the pure catalyst. However, the acid medium and the oxidation of the surface reduce the activity and durability of the alloy catalyst through changes in its local composition and structure. Molecular simulation techniques are applied to characterize the thermodynamics and dynamic evolution of the surface of platinum-based alloy catalysts under reaction conditions.1-10 A simulation scheme of the surface oxidation is proposed which combines classical molecular dynamics (MD) and density functional theory (DFT). This approach is able to reproduce the main features of the oxidation phenomena observed experimentally, it is concluded that the dissolution mechanism of metal atoms involves: 1) Surface segregation of alloy atoms, 2) oxygen absorption into the subsurface of the catalyst, and 3) metal detachment through the interaction with ions in the solvent. Therefore, to improve the durability of platinum-based alloy catalysts, the steps of the dissolution mechanism must be prevented. A versatile 3-D kinetic Monte Carlo (KMC) code is developed to study the degradation and dealloying in nanocatalysts. The results on the degradation of Pt nanoparticles under different potential regimes demonstrate that the dissolution depends on the potential path to which the nanocatalyst is exposed. Metal atoms detach from the boundaries of (111) facets expecting a reduction in the activity of the nanoparticle. Also, the formation of Pt hollow nanoparticles by the Kirkendall effect is addressed, the role of vacancies is crucial in the removal of the non-noble core that yields to hollow nanoparticles. To investigate the reasons for the experimentally found enhanced ORR activity in porous/hollow nanoparticles, the effect of subsurface vacancies on the main ORR activity descriptors is studied with DFT. It is found that an optimum amount of vacancies may enhance the ORR activity of Pt-monolayer catalysts over certain alloy cores by changing the binding energies of O and OH.

Callejas-Tovar, Juan

2012-08-01T23:59:59.000Z

396

Medium-Range, Monthly, and Seasonal Prediction for Europe and the Use of Forecast Information  

Science Conference Proceedings (OSTI)

Operational probabilistic (ensemble) forecasts made at ECMWF during the European summer heat wave of 2003 indicate significant skill on medium (310 day) and monthly (1030 day) time scales. A more general unified analysis of many medium-range, ...

Mark J. Rodwell; Francisco J. Doblas-Reyes

2006-12-01T23:59:59.000Z

397

Parametric analysis of entropy generation in a channel filled with a porous medium  

Science Conference Proceedings (OSTI)

The entropy generation of a mixed convection flow in an inclined channel filled with a porous medium, is studied in the present paper. The constant flow rate is considered upward and the uniform wall heat flux is into the channel. The analytical solutions ... Keywords: differential equations, entropy generation, mixed convection, porous medium

Dalia Sabina Cimpean; Ioan Pop

2011-05-01T23:59:59.000Z

398

Probing the existence of medium pulmonary crackles via model-based clustering  

Science Conference Proceedings (OSTI)

The objective of this study is to probe the existence of a third crackle type, medium, besides the traditionally accepted types, namely, fine and coarse crackles and, furthermore, to explore the representative parameter values for each crackle type. ... Keywords: BIC, Coarse, EM clustering, Fine crackle types, Medium, Pulmonary crackles

Mete Yeginer; Yasemin P. Kahya

2010-09-01T23:59:59.000Z

399

A lattice Boltzmann model for electromagnetic waves propagating in a one-dimensional dispersive medium  

Science Conference Proceedings (OSTI)

A first-order extended lattice Boltzmann (LB) model with special forcing terms for one-dimensional Maxwell equations exerting on a dispersive medium, described either by the Debye or Drude model, is proposed in this study. The time dependent dispersive ... Keywords: Debye model, Dispersive medium, Drude model, Electromagnetic waves, Lattice Boltzmann method, Lorentz model

Poting Chen; Chen-Hao Wang; Jeng-Rong Ho

2013-03-01T23:59:59.000Z

400

Behaviour of oil ganglia displaced by a surfactant solution in a porous medium  

E-Print Network (OSTI)

L-97 Behaviour of oil ganglia displaced by a surfactant solution in a porous medium J. C. Moulu'importance relative des forces de viscosité et des forces capillaires. Abstract. 2014 The velocity of oil ganglia residual oil phase by water injection in a porous medium [1, 2]. These studies have demonstrated

Paris-Sud XI, Université de

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


401

Homogenization of a degenerate parabolic problem in a highly heterogeneous medium with highly anisotropic fibers  

Science Conference Proceedings (OSTI)

We consider the homogenization of a heat transfer problem in a periodic medium, consisting of a set of highly anisotropic fibers surrounded by insulating layers, the whole being embedded in a third material having a conductivity of order 1. The conductivity ... Keywords: Degenerate parabolic problem, Highly anisotropic fibers, Highly heterogeneous medium, Homogenization

Ahmed Boughammoura

2009-01-01T23:59:59.000Z

402

1. Gas als inkompressibles Medium Schtzen Sie den Druck im Staupunkt und die Dichtende-  

E-Print Network (OSTI)

h 1. Gas als inkompressibles Medium Schätzen Sie den Druck im Staupunkt und die Dichteände- rung im ist. Unter welchen Bedingungen kann man ein Gas als ein inkompressibles Medium betrachten? 2 Kontaktgebietes, die Druckverteilung im Kontaktgebiet und die Eindrucktiefe als Funktion der Normalkraft zu bestim

Berlin,Technische Universität

403

Control System Development for an Advanced-Technology Medium-Duty Hybrid Electric Truck  

E-Print Network (OSTI)

03TB-45 Control System Development for an Advanced-Technology Medium-Duty Hybrid Electric Truck and vehicle test results for a medium-duty hybrid electric truck are reported in this paper. The design the benchmark vehicle. INTRODUCTION Hybrid powertrain is among the most visible transportation technology

Grizzle, Jessy W.

404

Hot Plasma Waves Surrounding the Schwarzschild Event Horizon in a Veselago Medium  

E-Print Network (OSTI)

This paper investigates wave properties of hot plasma in a Veselago medium. For the Schwarzschild black hole, the $3+1$ GRMHD equations are re-formulated which are linearly perturbed and then Fourier analyzed for rotating (non-magnetized and magnetized) plasmas. The graphs of wave vector, refractive index and change in refractive are used to discuss the wave properties. The results obtained confirm the presence of Veselago medium for both rotating (non-magnetized and magnetized) plasmas. This work generalized the isothermal plasma waves in the Veselago medium to hot plasma case.

M. Sharif; Noureen Mukhtar

2011-01-05T23:59:59.000Z

405

In-Medium Modifications of Scalar Charm Mesons in Nuclear Matter  

E-Print Network (OSTI)

Employing QCD sum rules the in-medium modifications of scalar charm mesons in a cold nuclear matter environment are estimated. The mass splitting of D*-D*-bar is quantified.

Hilger, Thomas

2010-01-01T23:59:59.000Z

406

Use of Medium-Range Numerical Weather Prediction Model Output to Produce Forecasts of Streamflow  

Science Conference Proceedings (OSTI)

This paper examines an archive containing over 40 years of 8-day atmospheric forecasts over the contiguous United States from the NCEP reanalysis project to assess the possibilities for using medium-range numerical weather prediction model output ...

Martyn P. Clark; Lauren E. Hay

2004-02-01T23:59:59.000Z

407

Quantitative Flood Forecasting on Small- and Medium-Sized Basins: A Probabilistic Approach for Operational Purposes  

Science Conference Proceedings (OSTI)

The forecast of rainfall-driven floods is one of the main themes of analysis in hydrometeorology and a critical issue for civil protection systems. This work describes a complete hydrometeorological forecast system for small- and medium-sized ...

Francesco Silvestro; Nicola Rebora; Luca Ferraris

2011-12-01T23:59:59.000Z

408

"Shelter within my reach" : medium rise apartment housing for the middle income group in Karachi, Pakistan  

E-Print Network (OSTI)

This thesis identifies the project development processes of medium rise (five storied or less) apartment housing built by the private formal sector, catering to the middle income groups in Karachi, Pakistan. Middle income ...

Mahmood, Saman, 1972-

1999-01-01T23:59:59.000Z

409

The role of information technology in small and medium enterprises in the Brazilian oil offshore industry  

Science Conference Proceedings (OSTI)

Suppliers of oil companies, even Small and Medium Enterprises (SMEs), have to strive for continuous technological development and excellence at management. In this scenario, the adequate use of Information Technology (IT) stands out as a supporting factor ...

Francisco Duarte; Suzana Dantas Hecksher; Roberto dos Santos Bartholo Junior

2012-04-01T23:59:59.000Z

410

Implementing Software Process Improvement Initiatives in Small and Medium-Size Enterprises in Brazil  

Science Conference Proceedings (OSTI)

Appropriate process implementation approaches are fundamental for Small and Medium-size Enterprises (SMEs) to obtain the most of Software Process Improvement (SPI) benefits. COPPE/UFRJ has been providing SPI consultancy services to the Brazilian software ...

Gleison Santos; Mariano Montoni; Jucele Vasconcellos; Savio Figueiredo; Reinaldo Cabral; Cristina Cerdeiral; Anne Elise Katsurayama; Peter Lupo; David Zanetti; Ana Regina Rocha

2007-09-01T23:59:59.000Z

411

Power Line Communication as a Transmission Medium for OpenADR...  

NLE Websites -- All DOE Office Websites (Extended Search)

Power Line Communication as a Transmission Medium for OpenADR Signals Speaker(s): Javier Matanza Domingo Date: December 14, 2011 - 1:30pm Location: 90-3075 Seminar HostPoint of...

412

Selective collision based medium access control protocol for proactive protection of privacy for RFID  

Science Conference Proceedings (OSTI)

RFID is rapidly being deployed because of its versatility. However, the privacy problem cannot be handled effectively because of limited capability of RFID tags. We propose a secure medium access control(MAC) protocol to solve the privacy problem. Our ...

JuSung Park; Jeonil Kang; DaeHun Nyang

2005-12-01T23:59:59.000Z

413

Energy-efficient reservation-based medium access control protocol for wireless sensor networks  

Science Conference Proceedings (OSTI)

In Wireless Sensor Networks (WSNs), a robust and energy-efficient Medium Access Control (MAC) protocol is required for high energy efficiency in harsh operating conditions, where node and link failures are common. This paper presents the design of a ...

Mikko Kohvakka; Jukka Suhonen; Timo D. Hmlinen; Marko Hnnikinen

2010-04-01T23:59:59.000Z

414

A Short-Range to Early-Medium-Range Ensemble Prediction System for the European Area  

Science Conference Proceedings (OSTI)

An ensemble prediction system, especially designed for the short to early-medium range for the European domain, is presented. The initial perturbations of each ensemble are based on singular vectors that maximize the 3-day total energy error ...

H. Hersbach; R. Mureau; J. D. Opsteegh; J. Barkmeijer

2000-10-01T23:59:59.000Z

415

Applicability of Effective-Medium Theories to problems of Scattering and Absorption by Nonhomogeneous Atmospheric Particles  

Science Conference Proceedings (OSTI)

Effective-medium theories yield effective dielectric functions (or, equivalently, refractive indices) of composite media. Such theories have been formulated that go beyond the Maxwell-Garnett and Bruggeman theories, which art restricted to media ...

Craig F. Bohren

1986-03-01T23:59:59.000Z

416

The design of a compact integral medium size PWR : the CIRIS  

E-Print Network (OSTI)

The International Reactor Innovative and Secure (IRIS) is an advanced medium size, modular integral light water reactor design, rated currently at 1000 MWt. IRIS design has been under development by over 20 organizations ...

Shirvan, Koroush

2010-01-01T23:59:59.000Z

417

Evaluation of Probabilistic Medium-Range Temperature Forecasts from the North American Ensemble Forecast System  

Science Conference Proceedings (OSTI)

Ensemble temperature forecasts from the North American Ensemble Forecast System were assessed for quality against observations for 10 cities in western North America, for a 7-month period beginning in February 2007. Medium-range probabilistic ...

Doug McCollor; Roland Stull

2009-02-01T23:59:59.000Z

418

Further Evaluation of the National Meterological Center's Medium-Range Forecast Model Precpitation Forecasts  

Science Conference Proceedings (OSTI)

Precipitation forecasts made by the National Meteorological Center's medium-range forecast (MRF) model are evaluated for the period, 1 March 1987 to 31 March 1989. As shown by Roads and Maisel, the MRF model wet bias was substantially alleviated ...

John O. Roads; T. Norman Maisal; Jordan Alpert

1991-12-01T23:59:59.000Z

419

Analysis of asset health : an approach to monitoring and diagnostics for medium voltage circuit breakers  

E-Print Network (OSTI)

The Medium Voltage Electric Industry is a very conservative and risk adverse sector that has undergone very little change in the past 30 years when compared to other technologically dependent activities; this reality is ...

Corona, Erick (Erick Gustavo)

2013-01-01T23:59:59.000Z

420

Identification of Highly Predictable Flow Elements for Spatial Filtering of Medium- and Extended-Range Numerical Forecasts  

Science Conference Proceedings (OSTI)

To determine if some flow components are systematically forecast more accurately than others, 990 wintertime medium-range forecasts made at the European Centre for Medium-Range Weather Forecasts (ECMWF) are examined. It is found that forecasts ...

Grant Branstator; Andrew Mai; David Baumhefner

1993-06-01T23:59:59.000Z

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


421

Power Plant Electrical Reference Series: Guide for Rewinding and Reconditioning Medium Voltage Electric Motors: Volume 17  

Science Conference Proceedings (OSTI)

When medium-voltage motors fail, plant managers and other utility personnel have to oversee repair and rewinding. This guide provides a short-course approach to medium voltage motor repair, with sample specifications and check-off sheets to help the nonspecialist get the best service from the repair shop. The guide can also serve as a technical reference for the specialist.BackgroundThe 16 previous volumes of EPRI's Power Plant Electrical Reference Series ...

1996-09-19T23:59:59.000Z

422

Green's Function expansion of scalar and vector fields in the presence of a medium  

E-Print Network (OSTI)

Based on a canonical approach and functional-integration techniques, a series expansion of Green's function of a scalar field, in the presence of a medium, is obtained. A series expansion for Lifshitz-energy, in finite-temperature, in terms of the susceptibility of the medium is derived and the whole formalism is generalized to the case of electromagnetic field in the presence of some dielectrics. A covariant formulation of the problem is presented.

Fardin Kheirandish; Shahriar Salimi

2010-10-17T23:59:59.000Z

423

Light transmission through and its complete stoppage in an ultra slow wave optical medium  

E-Print Network (OSTI)

Light Wave transmission -- its compression, amplification, and the optical energy storage -- in an Ultra Slow Wave Medium (USWM) is studied analytically. Our phenomenological treatment is based entirely on the continuity equation for the optical energy flux, and the well known distribution-product property of Dirac delta-function. The results so obtained provide a clear understanding of some recent experiments on light transmission and its complete stoppage in an USWM. Keywords : Ultra slow light, stopped light, slow wave medium, EIT.

V., Ranjith

2013-01-01T23:59:59.000Z

424

Engineering Technical Training Modules - Medium Voltage System Protection and Coordination Version 1.0  

Science Conference Proceedings (OSTI)

The purpose of this training module is to provide a basic understanding of protective relaying and coordination typically provided for medium voltage power systems. This module provides a discussion on current and potential transformers, the protective relays typically used as well as considerations for equipment protection and coordination or selective tripping. Medium voltage motor, transformer, and bus protection applications are covered. Lesson 4 focuses on emergency diesel generator protection in n...

2011-08-09T23:59:59.000Z

425

Technical Support Document: 50% Energy Savings Design Technology Packages for Medium Office Buildings  

Science Conference Proceedings (OSTI)

This Technical Support Document (TSD) describes the process and methodology for development of the Advanced Energy Design Guide for Medium Offices (AEDG-MO or the Guide), a design guidance document which intends to provide recommendations for achieving 50% energy savings in medium office buildings that just meet the requirements of ANSI/ASHRAE/IESNA Standard 90.1-2004, Energy Standard for Buildings Except Low-Rise Residential Buildings.

Thornton, Brian A.; Wang, Weimin; Lane, Michael D.; Rosenberg, Michael I.; Liu, Bing

2009-09-01T23:59:59.000Z

426

Plant Support Engineering: Aging Management Program Guidance for Medium- Voltage Cable Systems for Nuclear Power Plants  

Science Conference Proceedings (OSTI)

Regulatory and management concern regarding the reliability of medium-voltage cable systems at nuclear plants has been increasing for 510 years. The staff of the U.S. Nuclear Regulatory Commission (NRC) are concerned that wetted (up to and including submergence) medium-voltage cable circuits may be degrading to the point at which multiple cable circuits may fail when called on to perform functions affecting safety. Utility managers are concerned that cables may fail, causing adverse safety consequences ...

2010-06-02T23:59:59.000Z

427

The Viscosity of Liquid Tantalum  

Science Conference Proceedings (OSTI)

Conference Tools for 2011 TMS Annual Meeting & Exhibition ... *Work performed under the auspices of the U.S. DOE by LLNL under Contract DE-AC52-

428

Visualizing multiphase flow and trapped fluid configurations in a model three-dimensional porous medium  

E-Print Network (OSTI)

We report an approach to fully visualize the flow of two immiscible fluids through a model three-dimensional (3D) porous medium at pore-scale resolution. Using confocal microscopy, we directly image the drainage of the medium by the non-wetting oil and subsequent imbibition by the wetting fluid. During imbibition, the wetting fluid pinches off threads of oil in the narrow crevices of the medium, forming disconnected oil ganglia. Some of these ganglia remain trapped within the medium. By resolving the full 3D structure of the trapped ganglia, we show that the typical ganglion size, and the total amount of residual oil, decreases as the capillary number Ca increases; this behavior reflects the competition between the viscous pressure in the wetting fluid and the capillary pressure required to force oil through the pores of the medium. This work thus shows how pore-scale fluid dynamics influence the trapped fluid configurations in multiphase flow through 3D porous media.

Amber T. Krummel; Sujit S. Datta; Stefan Mnster; David A. Weitz

2013-01-21T23:59:59.000Z

429

Method for electrically producing dispersions of a nonconductive fluid in a conductive medium  

DOE Patents (OSTI)

A method for use in electrically forming dispersions of a nonconducting fluid in a conductive medium that minimizes power consumption, gas generation, and sparking between the electrode of the nozzle and the conductive medium. The method utilizes a nozzle having a passageway, the wall of which serves as the nozzle electrode, for the transport of the nonconducting fluid into the conductive medium. A second passageway provides for the transport of a flowing low conductivity buffer fluid which results in a region of the low conductivity buffer fluid immediately adjacent the outlet from the first passageway to create the necessary protection from high current drain and sparking. An electrical potential difference applied between the nozzle electrode and an electrode in contact with the conductive medium causes formation of small droplets or bubbles of the nonconducting fluid within the conductive medium. A preferred embodiment has the first and second passageways arranged in a concentric configuration, with the outlet tip of the first passageway withdrawn into the second passageway.

DePaoli, David W. (Knoxville, TN); Tsouris, Constantinos (Oak Ridge, TN); Feng, James Q. (Fairport, NY)

1998-01-01T23:59:59.000Z

430

Visualizing multiphase flow and trapped fluid configurations in a model three-dimensional porous medium  

E-Print Network (OSTI)

We report an approach to fully visualize the flow of two immiscible fluids through a model three-dimensional (3D) porous medium at pore-scale resolution. Using confocal microscopy, we directly image the drainage of the medium by the non-wetting oil and subsequent imbibition by the wetting fluid. During imbibition, the wetting fluid pinches off threads of oil in the narrow crevices of the medium, forming disconnected oil ganglia. Some of these ganglia remain trapped within the medium. By resolving the full 3D structure of the trapped ganglia, we show that the typical ganglion size, and the total amount of residual oil, decreases as the capillary number Ca increases; this behavior reflects the competition between the viscous pressure in the wetting fluid and the capillary pressure required to force oil through the pores of the medium. This work thus shows how pore-scale fluid dynamics influence the trapped fluid configurations in multiphase flow through 3D porous media.

Krummel, Amber T; Mnster, Stefan; Weitz, David A; 10.1002/aic.14005

2013-01-01T23:59:59.000Z

431

System and method for monitoring water content or other dielectric influences in a medium  

DOE Patents (OSTI)

A sensor system is provided that measures water content or other detectable properties in a medium along the entire length of the sensor at any point in time. The sensor system includes an electromagnetic signal generator and a transmission line disposed in a medium to be monitored. Alternatively, the transmission line can be configured for movement across a medium to be monitored, or the transmission line can be fixed relative to a moving medium being monitored. A signal is transmitted along the transmission line at predetermined frequencies, and the signal is returned back along the transmission line and/or into an optional receive line in proximity to the transmission line. The returned signal is processed to generate a one-dimensional data output profile that is a function of a detectable property of the medium. The data output profile can be mapped onto a physical system to generate a two-dimensional or three-dimensional profile if desired. The sensor system is useful in a variety of different applications such as agriculture, horticulture, biofiltration systems for industrial offgases, leak detection in landfills or drum storage facilities at buried waste sites, and in many other applications.

Cherry, Robert S. (Idaho Falls, ID); Anderson, Allen A. (Firth, ID)

2001-01-01T23:59:59.000Z

432

Medium-Term Risk Management for a Gas-Fired Power Plant  

NLE Websites -- All DOE Office Websites (Extended Search)

Medium-Term Risk Management for a Gas-Fired Power Plant Medium-Term Risk Management for a Gas-Fired Power Plant Speaker(s): Afzal Siddiqui Date: October 11, 2012 - 12:00pm Location: 90-1099 Seminar Host/Point of Contact: Chris Marnay Electricity sectors in many countries have been deregulated with the aim of introducing competition. However, as a result, electricity prices have become highly volatile. Stochastic programming provides an appropriate method to characterise the uncertainty and to derive decisions while taking risk management into account. We consider the medium-term risk management problem of a UK gas-fired power plant that faces stochastic electricity and gas prices. In particular, the power plant makes daily decisions about electricity sales to and gas purchases from spot markets over a monthly

433

China-Medium and Long Term Energy Conservation Plan | Open Energy  

Open Energy Info (EERE)

Medium and Long Term Energy Conservation Plan Medium and Long Term Energy Conservation Plan Jump to: navigation, search Name China-Medium and Long Term Energy Conservation Plan Agency/Company /Organization Government of China Sector Energy Focus Area Energy Efficiency, Renewable Energy Topics Implementation, Policies/deployment programs, Background analysis Resource Type Publications Website http://www.beconchina.org/ener Country China UN Region Eastern Asia References China EE[1] Overview "Energy conservation is a long-term strategic guideline in China's economic and social development, and an extremely urgent matter at present. The NDRC has therefore formulated the Plan of Energy Conservation, which aims to push the whole society towards energy conservation and energy intensity reduction, to remove energy bottlenecks, to build an energy

434

Evaluation at the medium energy region for Pb-208 and Bi-209  

Science Conference Proceedings (OSTI)

Medium energy nuclear data in the 1--1000 MeV range is necessary to accelerator applications which include spallation neutron sources for radioactive waste treatment and accelerator shielding design, medical applications which include isotopes production and radiation therapy, and space applications. For the design of fission and fusion reactors, the nuclear data file for neutrons below 20 MeV is available and well evaluated. Evaluated nuclear data for protons and data in the medium energy region, however, have not been prepared completely. Evaluation in the medium energy region was performed using the theoretical calculation code ALICE-P or experimental data. In this paper, the evaluation of neutron and proton induced nuclear data for Pb-208 and Bi-209 has been performed using ALICE-P, empirical calculations and new systematics for the fission cross section. The evaluated data are compiled for possible inclusion in the ENDF/B-VI High Energy File. 204 refs., 51 figs., 9 tabs.

Fukahori, Tokio; Pearlstein, S.

1991-01-01T23:59:59.000Z

435

Three-Dimensional Studies of the Warm Ionized Medium in the Milky Way using WHAM  

E-Print Network (OSTI)

The Wisconsin H-Alpha Mapper (WHAM) is a high throughput Fabry-Perot facility developed specifically to detect and explore the warm, ionized component of the interstellar medium at high spectral resolution. It began operating at Kitt Peak, Arizona in 1997 and has recently completed the WHAM Northern Sky Survey (WHAM-NSS), providing the first global view of the distribution and kinematics of the warm, diffuse H II in the Milky Way. This H-alpha survey reveals a complex spatial and kinematic structure in the warm ionized medium and provides a foundation for studies of the temperature and ionization state of the gas, the spectrum and strength of the ionizing radiation, and its relationship to other components of the interstellar medium and sources of ionization and heating within the Galactic disk and halo. More information about WHAM and the Survey can be found at http://www.astro.wisc.edu/wham/.

R. J. Reynolds; L. M. Haffner; G. J. Madsen

2002-01-23T23:59:59.000Z

436

Three-Dimensional Studies of the Warm Ionized Medium in the Milky Way using WHAM  

E-Print Network (OSTI)

The Wisconsin H-Alpha Mapper (WHAM) is a high throughput Fabry-Perot facility developed specifically to detect and explore the warm, ionized component of the interstellar medium at high spectral resolution. It began operating at Kitt Peak, Arizona in 1997 and has recently completed the WHAM Northern Sky Survey (WHAM-NSS), providing the first global view of the distribution and kinematics of the warm, diffuse H II in the Milky Way. This H-alpha survey reveals a complex spatial and kinematic structure in the warm ionized medium and provides a foundation for studies of the temperature and ionization state of the gas, the spectrum and strength of the ionizing radiation, and its relationship to other components of the interstellar medium and sources of ionization and heating within the Galactic disk and halo. More information about WHAM and the Survey can be found at http://www.astro.wisc.edu/wham/.

Reynolds, R J; Madsen, G J

2002-01-01T23:59:59.000Z

437

Method and apparatus for communicating computer data from one point to another over a communications medium  

DOE Patents (OSTI)

The present invention is directed toward a communications channel comprising a link level protocol, a driver, a receiver, and a canceller/equalizer. The link level protocol provides logic for DC-free signal encoding and recovery as well as supporting many features including CRC error detection and message resend to accommodate infrequent bit errors across the medium. The canceller/equalizer provides equalization for destabilized data signals and also provides simultaneous bi-directional data transfer. The receiver provides bit deskewing by removing synchronization error, or skewing, between data signals. The driver provides impedance controlling by monitoring the characteristics of the communications medium, like voltage or temperature, and providing a matching output impedance in the signal driver so that fewer distortions occur while the data travels across the communications medium.

Arneson, Michael R. (Chippewa Falls, WI); Bowman, Terrance L. (Sumner, WA); Cornett, Frank N. (Chippewa Falls, WI); DeRyckere, John F. (Eau Claire, WI); Hillert, Brian T. (Chippewa Falls, WI); Jenkins, Philip N. (Eau Claire, WI); Ma, Nan (Chippewa Falls, WI); Placek, Joseph M. (Chippewa Falls, WI); Ruesch, Rodney (Eau Claire, WI); Thorson, Gregory M. (Altoona, WI)

2007-07-24T23:59:59.000Z

438

Energy dependence of $\\bar{K}N$ interaction in nuclear medium  

E-Print Network (OSTI)

When the $\\bar{K}N$ system is submerged in nuclear medium the $\\bar{K}N$ scattering amplitude and the final state branching ratios exhibit a strong energy dependence when going to energies below the $\\bar{K}N$ threshold. A sharp increase of $\\bar{K}N$ attraction below the $\\bar{K}N$ threshold provides a link between shallow $\\bar{K}$-nuclear potentials based on the chiral $\\bar{K}N$ amplitude evaluated at threshold and the deep phenomenological optical potentials obtained in fits to kaonic atoms data. We show the energy dependence of the in-medium $K^{-}p$ amplitude and demonstrate the impact of energy dependent branching ratios on the $\\Lambda$-hypernuclear production rates. \\keywords{kaon-nucleon amplitude \\and nuclear medium \\and hypernuclei

A. Cieply

2011-12-05T23:59:59.000Z

439

Integrating 3D and 2D computer generated imagery for the comics medium  

E-Print Network (OSTI)

Advances in 3D computer technology have led to aesthetic experimentation within the comics medium. Comic creators have produced comic books done entirely with 3D models that are then assembled digitally for the printed page. However, in using these 3D objects in a comic format, the creators have developed art styles that do not adhere to the paradigms established by this traditionally 2D medium. More successful results can be achieved by integrating 3D computer generated imagery with traditional 2D imagery, rather than replacing it. This thesis develops a method of combining rendered 3D models with 2D vector graphics to create a comic book art style that is consistent with the traditional medium, while still taking advantage of the new technology.

DeLuna, Ruben

2004-12-01T23:59:59.000Z

440

Ammonia as an Alternative Energy Storage Medium for Hydrogen Fuel Cells: Scientific and Technical Review for Near-Term Stationary Power Demonstration Projects, Final Report  

E-Print Network (OSTI)

Alternative Energy Storage Medium for Hydrogen Fuel Cells:Alternative Energy Storage Medium for Hydrogen Fuel Cells:based energy storage system to produce hydrogen for a fuel

Lipman, Tim; Shah, Nihar

2007-01-01T23:59:59.000Z

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


441

Effective Diffusion-Medium Thickness for Simplified Polymer-Electrolyte-Fuel-Cell Modeling  

SciTech Connect

In this manuscript, conformal mapping is applied to a rib/channel domain of a polymer-electrolyte-fuel-cell diffusion medium. The analysis leads to the calculation of an effective diffusion-medium thickness, which can subsequently be used in 1-D simulations to account for the average rib/channel 2-D geometric effect. Extensions of the analysis to anisotropic and multilayer diffusion media are also given. Both equations and figures show the impact on a given variable at the catalyst layer of having a combined conducting/nonconducting boundary across from it.

Weber, Adam; Weber, Adam Z.

2008-07-30T23:59:59.000Z

442

Validation of short and medium term operational solar radiation forecasts in the US  

SciTech Connect

This paper presents a validation of the short and medium term global irradiance forecasts that are produced as part of the US data set. The short term forecasts that extend up to 6-h ahead are based upon cloud motion derived from consecutive geostationary satellite images. The medium term forecasts extend up to 6-days-ahead and are modeled from gridded cloud cover forecasts from the US National Digital Forecast Database. The forecast algorithms are validated against ground measurements for seven climatically distinct locations in the United States for 1 year. An initial analysis of regional performance using satellite-derived irradiances as a benchmark reference is also presented. (author)

Perez, Richard; Kivalov, Sergey; Schlemmer, James; Hemker, Karl Jr. [ASRC, University at Albany, Albany, New York (United States); Renne, David [National Renewable Energy Laboratory, Golden, Colorado (United States); Hoff, Thomas E. [Clean Power Research, Napa, California (United States)

2010-12-15T23:59:59.000Z

443

Quantum field theory in the presence of a medium: Green's function expansions  

SciTech Connect

Starting from a Lagrangian and using functional-integration techniques, series expansions of Green's function of a real scalar field and electromagnetic field, in the presence of a medium, are obtained. The parameter of expansion in these series is the susceptibility function of the medium. Relativistic and nonrelativistic Langevin-type equations are derived. Series expansions for Lifshitz energy in finite temperature and for an arbitrary matter distribution are derived. Covariant formulations for both scalar and electromagnetic fields are introduced. Two illustrative examples are given.

Kheirandish, Fardin [Department of Physics, Islamic Azad University, Shahreza-Branch, Shahreza (Iran, Islamic Republic of); Salimi, Shahriar [Department of Physics, University of Kurdistan, Sanandaj (Iran, Islamic Republic of)

2011-12-15T23:59:59.000Z

444

Axial thermal medium delivery tubes and retention plates for a gas turbine rotor  

SciTech Connect

In a multi-stage turbine rotor, tubes are disposed in openings adjacent the rotor rim for flowing a thermal medium to rotor buckets and returning spent thermal medium. The tubes have axially spaced lands of predetermined wall thickness with thin-walled tube sections between the lands and of increasing thickness from the forward to the aft ends of the tubes. A pair of retention plates are carried on the aft end face of the aft wheel and straddle the tube and engage against a shoulder on the tube to preclude displacement of the tube in an aft direction.

Mashey, Thomas Charles (Coxsackie, NY)

2002-01-01T23:59:59.000Z

445

Diode-pumped caesium vapour laser with closed-cycle laser-active medium circulation  

SciTech Connect

The creation of a caesium vapour laser with closed-cycle circulation of the laser-active medium is first reported. The power of the laser radiation amounted to {approx}1 kW with the 'light-to-light' conversion efficiency of {approx}48 %. Quasi-two-dimensional computational model of the laser operation that provides adequate description of experimental results is considered. Calculated and experimental dependences of the laser radiation power on the temperature of the cuvette walls, laser medium pressure and pump power are presented.

Bogachev, A V; Garanin, Sergey G; Dudov, A M; Eroshenko, V A; Kulikov, S M; Mikaelian, G T; Panarin, V A; Pautov, V O; Rus, A V; Sukharev, Stanislav A

2012-02-28T23:59:59.000Z

446

Polymeric medium  

DOE Patents (OSTI)

A PBI compound includes imidazole nitrogens at least a portion of which are substituted with a moiety containing a carbonyl group, the substituted imidazole nitrogens being bonded to carbon of the carbonyl group. At least 85% of the nitrogens may be substituted. The carbonyl-containing moiety may include RCO--, where R is alkoxy or haloalkyl. The PBI compound may exhibit a first temperature marking an onset of weight loss corresponding to reversion of the substituted PBI that is less than a second temperature marking an onset of decomposition of an otherwise identical PBI compound without the substituted moiety. The PBI compound may be included in separatory media. A substituted PBI synthesis method may include providing a parent PBI in a less than 5 wt % solvent solution. Substituting may use more than 5 equivalents in relation to the imidazole nitrogens to be substituted.

Klaehn, John R. (Idaho Falls, ID); Peterson, Eric S. (Idaho Falls, ID); Orme, Christopher J. (Shelley, ID); Jones, Michael G. (Chubbuck, ID); Wertsching, Alan K. (Idaho Falls, ID); Luther, Thomas A. (Idaho Falls, ID); Trowbridge, Tammy L. (Idaho Falls, ID)

2012-03-06T23:59:59.000Z

447

A method for determining the parameters of blast load on the enclosing medium and surrounding objects  

Science Conference Proceedings (OSTI)

A model for computing the impact of blast energy irradiated into the three-dimensional space of the enclosing medium is suggested, which makes it possible to predict the parameters of the action of an arbitrary blast source on an arbitrarily located watched object. As a consequence, it becomes possible to optimize safe conditions of the building process under virtually any conditions of blasting.

Shuifer, M. I. ['SPII Gidrospetsproekt' Company (Russian Federation)

2006-01-15T23:59:59.000Z

448

The Skill of ECMWF Medium-Range Forecasts during the Year of Tropical Convection 2008  

Science Conference Proceedings (OSTI)

This study uses the European Centre for Medium-Range Weather Forecasts (ECMWF) model-generated high-resolution 10-day-long predictions for the Year of Tropical Convection (YOTC) 2008. Precipitation forecast skills of the model over the tropics ...

Arindam Chakraborty

2010-10-01T23:59:59.000Z

449

Procedures for Passenger Cars, Light-Duty Trucks and Medium-Duty  

E-Print Network (OSTI)

2001 and subsequent model-year passenger cars, light-duty trucks, and medium-duty trucks for which non-methane organic gas (NMOG) exhaust emission reduction credit is requested as a result of the use of a DOR technology on a motor vehicle radiator, air conditioning assembly, or other appropriate substrate. REFERENCES:

unknown authors

1999-01-01T23:59:59.000Z

450

Technology Assimilation Across the Value Chain: An Empirical Study of Small and Medium-Sized Enterprises  

Science Conference Proceedings (OSTI)

In this paper, the authors study technology assimilation, aggregating technologies and assimilation stages for SMEs. The authors employ the twin lenses of organizational innovation and elements of institutional theory. The research validates some institutional ... Keywords: Adoption, Assimilation, Clusters, Innovation, Institutional Theory, Intermediaries, Small and Medium-Sized Enterprises SMEs, Value Chain

Pratyush Bharati; Abhijit Chaudhury

2012-01-01T23:59:59.000Z

451

Average crack front velocity during subcritical fracture propagation in a heterogeneous medium  

E-Print Network (OSTI)

the free energy, and thus the energy barrier, via numerous competing mech- anisms like stress corrosion speed of crack growth with increasing G; a weak stress- sensitive regime II follows where transportAverage crack front velocity during subcritical fracture propagation in a heterogeneous medium

Ampuero, Jean Paul

452

Analysis of Organic Rankine Cycle for Low and Medium Grade Heat Source  

Science Conference Proceedings (OSTI)

Organic Rankine cycle (ORC) is an effective technique to generate power from low and medium temperature heat source, including industrial waste heat, solar heat, geothermal and biomass etc. Advantages of ORC are high efficiency, simple system, environment ... Keywords: organic Rankine cycle, new energy, waste heat recovery

Zhonghe Han, Yida Yu

2012-07-01T23:59:59.000Z

453

Exploring parallelization for medium access schemes on many-core software defined radio architecture  

Science Conference Proceedings (OSTI)

As multi-standard devices and high speed communication standards are emerging, timeliness requirements and flexibility for both baseband modem and medium access schemes are becoming essential. Software Defined Radios (SDRs), in this context, aim at offering ... Keywords: mac, many-core, parallelization, sdr platform

Xi Zhang, Junaid Ansari, Manish Arya, Petri Mhnen

2013-08-01T23:59:59.000Z

454

Changes in the African monsoon region at medium-term time horizon using 12 AR4  

E-Print Network (OSTI)

1 Changes in the African monsoon region at medium-term time horizon using 12 AR4 coupled models.58 ° in mean) and a southward shift in 6 /11 models in the western region (-0.24°) is observed. African monsoon of land compared to oceans, which would be responsible for driving a stronger monsoonal flow inland

Paris-Sud XI, Université de

455

Demonstration Abstract: WARP A Flexible Platform for Clean-Slate Wireless Medium Access Protocol Design  

E-Print Network (OSTI)

Demonstration Abstract: WARP ­ A Flexible Platform for Clean-Slate Wireless Medium Access Protocol University Wireless Open-Access Research Platform (WARP) provides a high performance research tool for clean-slate provides a general environment for a clean-slate MAC/PHY de- velopment unlike other platforms which rely

Knightly, Edward W.

456

Business Continuity Planning Resources for Small- and Medium-Sized Businesses  

SciTech Connect

This document/memo summarizes existing resources and guidance on business continuity planning for small- to medium-sized businesses. DTRA will share this information with large commercial businesses who identified the need to help their suppliers and other key collaborators prepare business continuity plans in order to speed recovery from a wide-area bioterrorism incident.

Judd, Kathleen S.; Lesperance, Ann M.

2010-05-14T23:59:59.000Z

457

Combustion System Development for Medium-Sized Industrial Gas Turbines: Meeting Tight Emission Regulations while Using  

E-Print Network (OSTI)

Combustion System Development for Medium-Sized Industrial Gas Turbines: Meeting Tight Emission and the oil & gas industries. The combustion system used in Solar's products are discussed along- bility for the introduction of new combustion systems for gas turbine products to enhance fuel

Ponce, V. Miguel

458

Grounding studies in a medium voltage DC shipboard power system with uncertain parameters  

Science Conference Proceedings (OSTI)

In this paper, the response surface modeling approach is applied to study the effectiveness of different grounding schemes implemented for the mitigation of single-line-to-ground faults in a simulation of a notional Medium Voltage DC shipboard power ... Keywords: Gaussian process model, Sobol indices, multivariate adaptive regression splines (MARS)

Dorca Lee; Diomar Infante; James Langston; Svetlana V. Poroseva; Michael Steurer; Thomas Baldwin

2010-07-01T23:59:59.000Z

459

A target oriented agent to collect specific information in a chat medium  

Science Conference Proceedings (OSTI)

Internet and chat mediums provide important and quite useful information about human life in different societies such as their current interests, habits, social behaviors and criminal tendency. In this study, we have presented an intelligent identification ... Keywords: chat conversations, intelligent agent, machine learning, natural language processing, sex identification

Cemal Kse; zcan zyurt

2006-11-01T23:59:59.000Z

460

Annual Cycle Integration of the NMC Medium-Range Forecasting (MRF) Model  

Science Conference Proceedings (OSTI)

The NMC Global Spectral Model was integrated for one year. The model used is the same as the 1989 operational medium range forecast model except that the horizontal resolution was reduced from T80 to T40. Overall, the model was very successful in ...

M. Kanamitsu; K. C. Mo; E. Kalnay

1990-12-01T23:59:59.000Z

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


461

Artificial intelligence based optimization of fermentation medium for ?-glucosidase production from newly isolated strain tolypocladium cylindrosporum  

Science Conference Proceedings (OSTI)

A Tolypocladium cylindrosporum strain was isolated for efficiently produce extracellular thermoacidophilic ?-glucosidase (BGL). This objective of the present paper is to integrate two different artificial intelligence techniques namely artificial ... Keywords: ?-glucosidase(BGL), artificial intelligence(AI), artificial neural network(ANN), fermentation medium, genetic algorithm(GA), tolypocladium cylindrosporum

Yibo Zhang; Lirong Teng; Yutong Quan; Hongru Tian; Yuan Dong; Qingfan Meng; Jiahui Lu; Feng Lin; Xueqing Zheng

2010-09-01T23:59:59.000Z

462

Zymomonas with improved ethanol production in medium containing concentrated sugars and acetate  

DOE Patents (OSTI)

Through screening of a Zymomonas mutant library the himA gene was found to be involved in the inhibitory effect of acetate on Zymomonas performance. Xylose-utilizing Zymomonas further engineered to reduce activity of the himA gene were found to have increased ethanol production in comparison to a parental strain, when cultured in medium comprising xylose and acetate.

Caimi, Perry G. (Kennett Square, PA); Chou, Yat-Chen (Lakewood, CO); Franden, Mary Ann (Centennial, CO); Knoke, Kyle (Newark, DE); Tao, Luan (Havertown, PA); Viitanen, Paul V. (West Chester, PA); Zhang, Min (Lakewood, CO); Zhang, Yuying (New Hope, PA)

2010-09-28T23:59:59.000Z