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1

Open hole packer for high pressure service in a five hundred degree fahrenheit precambrian wellbore  

DOE Green Energy (OSTI)

Massive hydraulic fracturing (MHF) from a lower wellbore (EE-2) created a large man-made reservoir which did not intersect the upper well (EE-3). To create a heat extraction flow loop, the upper well was sidetracked and redrilled (EE-3A) down into a microseismic cloud around EE-2 mapped during the MHF. The potential to intersect numerous fracture zones in the redrilled bore was apparent from seismicity. To economically and effectively isolate and test these microseismic zones required that a functional open hole packer be developed. The packer would be exposed to soak temperatures as high as 500/sup 0/F (260/sup 0/C) with cool down to 100/sup 0/F (40/sup 0/C) at differential pressures exceeding 5000 psi (35 Mpa). A functional packer has been designed, manufactured, and successfully used for the creation of a hot dry rock (HDR) reservoir. 5 figs., 1 tab.

Dreesen, D.S.; Miller, J.R.; Halbardier, F.A.; Nicholson, R.W.

1985-01-01T23:59:59.000Z

2

Replication degree customization for high availability  

Science Conference Proceedings (OSTI)

Object replication is a common approach to enhance the availability of distributed data-intensive services and storage systems. Many such systems are known to have highly skewed object request probability distributions. In this paper, we propose an object ... Keywords: optimization, replication, system availability

Ming Zhong; Kai Shen; Joel Seiferas

2008-04-01T23:59:59.000Z

3

Commissioning the 90 Degree Lattice for the PEP II High Energy Ring  

Science Conference Proceedings (OSTI)

In order to benefit from further reduction of the vertical IP beta function of the PEP-II high energy ring (HER) the bunch length should be reduced. This will be achieved by changing the phase advance from 60 degree to 90 degree in the four arcs not adjacent to the IR region, thus reducing momentum compaction by about 30% and reducing bunch length from a present 12 mm down to 8.5 mm at low beam current. In preparation to implement the 90 degree lattice the main HER quadrupole and sextupole strings and their power supplies have been reconfigured. The synchrotron tune initially will be lower but can be brought back by raising the rf voltage. Beam emittance is held at 48 nmr by introducing a significant dispersion beat in the arcs. The lattice was successfully commissioned at currents up to 800 mA in August 2007. In this paper we will compare the actual machine with the predicted behaviour, explain the correction strategies used and give an overall assessment of the operation and the benefit of the new lattice configuration.

Wittmer, W.; Cai, Y.; Cheng, W.X.; Colocho, W.S.; Decker, F.J.; Ecklund, S.; Fisher, A.S.; Nosochkov, Y.; Novokhatski, A.; Sullivan, M.K.; Wienands, U.; Yan, Y.T.; Yocky, G.; /SLAC

2011-11-02T23:59:59.000Z

4

DETECTION OF HIGH-DEGREE PROGRADE SECTORAL MODE SEQUENCES IN THE A-STAR KIC 8054146?  

SciTech Connect

This paper examines the 46 frequencies found in the {delta} Sct star KIC 8054146 involving a frequency spacing of exactly 2.814 cycles day{sup -1} (32.57 {mu}Hz), which is also a dominant low-frequency peak near or equal to the rotational frequency. These 46 frequencies range up to 146 cycles day{sup -1}. Three years of Kepler data reveal distinct sequences of these equidistantly spaced frequencies, including the basic sequence and side lobes associated with other dominant modes (i.e., small amplitude modulations). The amplitudes of the basic sequence show a high-low pattern. The basic sequence follows the equation f{sub m} = 2.8519 + m*2.81421 cycles day{sup -1} with m ranging from 25 to 35. The zero-point offset and the lack of low-order harmonics eliminate an interpretation in terms of a Fourier series of a non-sinusoidal light curve. The exactness of the spacing eliminates high-order asymptotic pulsation. The frequency pattern is not compatible with simple hypotheses involving single or multiple spots, even with differential rotation. The basic high-frequency sequence is interpreted in terms of prograde sectoral modes. These can be marginally unstable, while their corresponding low-degree counterparts are stable due to stronger damping. The measured projected rotation velocity (300 km s{sup -1}) indicates that the star rotates with {approx}>70% of the Keplerian break-up velocity. This suggests a near equator-on view. We qualitatively examine the visibility of prograde sectoral high-degree g-modes in integrated photometric light in such a geometrical configuration and find that prograde sectoral modes can reproduce the frequencies and the odd-even amplitude pattern of the high-frequency sequence.

Breger, M. [Department of Astronomy, University of Texas, Austin, TX 78712 (United States); Lenz, P. [Institut fuer Astronomie der Universitaet Wien, Tuerkenschanzstr. 17, A-1180, Wien (Austria); Pamyatnykh, A. A. [Copernicus Astronomical Center, Bartycka 18, 00-716 Warsaw (Poland)

2013-08-10T23:59:59.000Z

5

Design of the superconducting 45 degree dipole for the CEBAF high resolution spectrometers  

Science Conference Proceedings (OSTI)

The 460-ton dipole for the Hall A 4-GeV/c High Resolution Spectrometer has a bend angle of 45{sup o}, with an 8.4-m radius of curvature and an effective length of 6.6 m. It has a useful width of 100 cm and a 25-cm gap at the central radius of curvature. The dipole provides focusing in the dispersive plane by means of rotated (by 30 degrees) entrance and exit pole faces as well as a field index of -1.25. The end contour geometries have been designed to eliminate higher-order aberrations. The maximum central field is 1.6 T at 4 GeV/c. A field quality of 2 x 10{sup -4} (maximum deviation from the design value) is required over an excitation range from 0.16 T to 1.6 T. The 1.8-kA conductor is a 36-wire flattened cable. It has been designed to have limited cryostability at 4.5 K and 1.3 atm. Each coil is wound as one double pancake against the outer wall of the helium vessel in order to react the in-plane (hoop) loads. The bath-cooled, planar coil features negative curvature on its inner radius and at the exit. The coil produces 400 KAT at full excitation. The stored energy of this magnet is 3.5 MJ.

Alan Gavalya; John Alcorn; Walter Tuzel

1990-09-24T23:59:59.000Z

6

Power Modulation Investigation for High Temperature (175-200 degrees Celcius) Automotive Application  

Science Conference Proceedings (OSTI)

Hybrid electric vehicles were re-introduced in the late 1990s after a century dominated by purely internal combustion powered engines[1]. Automotive players, such as GM, Ford, DaimlerChrysler, Honda, and Toyota, together with major energy producers, such as BPAmoco, were the major force in the development of hybrid electric vehicles. Most notable was the development by Toyota of its Prius, which was launched in Japan in 1997 and worldwide in 2001. The shift to hybrids was driven by the fact that the sheer volume of vehicles on the road had begun to tax the ability of the environment to withstand the pollution of the internal combustion engine and the ability of the fossil fuel industry to produce a sufficient amount of refined gasoline. In addition, the number of vehicles was anticipated to rise exponentially with the increasing affluence of China and India. Over the last fifteen years, major advances have been made in all the technologies essential to hybrid vehicle success, including batteries, motors, power control and conditioning electronics, regenerative braking, and power sources, including fuel cells. Current hybrid electric vehicles are gasoline internal combustion--electric motor hybrids. These hybrid electric vehicles range from micro-hybrids, where a stop/start system cuts the engine while the vehicle is stopped, and mild hybrids where the stop/start system is supplemented by regenerative braking and power assist, to full hybrids where the combustion motor is optimized for electric power production, and there is full electric drive and full regenerative braking. PSA Peugeot Citroen estimates the increased energy efficiency will range from 3-6% for the micro-hybrids to 15-25% for the full hybrids.[2] Gasoline-electric hybrids are preferred in US because they permit long distance travel with low emissions and high gasoline mileage, while still using the existing refueling infrastructure. One of the most critical areas in which technology has been advancing has been the development of electronics that can operate in the high temperature environments present in hybrid vehicles. The temperatures under the hood for a gasoline-electric hybrid vehicle are comparable to those for traditional internal combustion engines. This is known to be a difficult environment with respect to commercial-grade electronics, as there are surface and ambient temperatures ranging from 125 C to 175 C. In addition, some hybrid drive electronics are placed in even harsher environments, such as on or near the brakes, where temperatures can reach 250 C. Furthermore, number of temperature cycles experienced by electronics in a hybrid vehicle is different from that experienced in a traditional vehicle. A traditional internal combustion vehicle will have the engine running for longer periods, whereas a mild or micro-hybrid engine will experience many more starts and stops.[3] This means that hybrid automotive electronics will undergo more cycles of a potential wider temperature cycle than standard automotive electronics, which in turn see temperature cycles of 2 to 3 times the magnitude of the {Delta}T = 50 C-75 C experienced by commercial-grade electronics. This study will discuss the effects of these harsh environments on the failure mechanisms and ultimate reliability of electronic systems developed for gasoline-electric hybrid vehicles. In addition, it will suggest technologies and components that can reasonably be expected to perform well in these environments. Finally, it will suggest areas where further research is needed or desirable. Areas for further research will be highlighted in bold, italic type. It should be noted that the first area where further research is desirable is in developing a clearer understanding of the actual hybrid automotive electronics environment and how to simulate it through accelerated testing, thus: Developing specific mission profiles and accelerated testing protocols for the underhood environment for hybrid cars, as has previously been done for gasoline-powered vehicles, is an important area for further st

McCluskey, F. P.

2007-04-30T23:59:59.000Z

7

Optical pH Sensors for High Temperature Environments  

Science Conference Proceedings (OSTI)

A novel pH measurement system based on remote absorption spectroscopy via two uni-directional optical fibers has been developed for use in cooling water sampling lines in power plants. The system was designed to operate at 200 degrees Celsius (392 degrees Fahrenheit) and 1379 kPa (200 psi) and, so far, has been shown to measure reproducibly the pH of a flowing stream at room temperature and 1379 kPa (200 psi).

2000-11-28T23:59:59.000Z

8

Design and control of an high maneuverability remotely operated vehicle with multi-degree of freedom thrusters  

E-Print Network (OSTI)

This research involves the design, manufacture, and testing of a small, < lm³, < 1Okg, low cost, unmanned submersible. High maneuverability in the ROV as achieved through a high thrust-to- mass ratio in all directions. One ...

Walker, Daniel G. (Daniel George)

2005-01-01T23:59:59.000Z

9

Kinetics and energy states of nanoclusters in the initial stage of homogeneous condensation at high supersaturation degrees  

Science Conference Proceedings (OSTI)

The condensation of metal vapor in an inert gas is studied by the molecular dynamics method. Two condensation regimes are investigated: with maintenance of partial pressure of the metal vapor and with a fixed number of metal atoms in the system. The main focus is the study of the cluster energy distribution over the degrees of freedom and mechanisms of the establishment of thermal equilibrium. It is shown that the internal temperature of a cluster considerably exceeds the buffer gas temperature and the thermal balance is established for a time considerably exceeding the nucleation time. It is found that, when the metal vapor concentration exceeds 0.1 of the argon concentration, the growth of clusters with the highest possible internal energy occurs, the condensation rate being determined only by the rate of heat removal from clusters.

Vorontsov, A. G., E-mail: sas@physics.susu.ac.ru [South Ural State University (Russian Federation); Gel'chinskii, B. R.; Korenchenko, A. E. [Russian Academy of Sciences, Institute of Metallurgy, Ural Branch (Russian Federation)

2012-11-15T23:59:59.000Z

10

Reactor User Interface Technology Development Roadmaps for a High Temperature Gas-Cooled Reactor Outlet Temperature of 750 degrees C  

DOE Green Energy (OSTI)

This report evaluates the technology readiness of the interface components that are required to transfer high-temperature heat from a High Temperature Gas-Cooled Reactor (HTGR) to selected industrial applications. This report assumes that the HTGR operates at a reactor outlet temperature of 750°C and provides electricity and/or process heat at 700°C to conventional process applications, including the production of hydrogen.

Ian Mckirdy

2010-12-01T23:59:59.000Z

11

Insolation data manual: long-term monthly averages of solar radiation, temperature, degree-days and global anti K/sub T/ for 248 national weather service stations  

DOE Green Energy (OSTI)

Monthly averaged data is presented which describes the availability of solar radiation at 248 National Weather Service stations. Monthly and annual average daily insolation and temperature values have been computed from a base of 24 to 25 years of data. Average daily maximum, minimum, and monthly temperatures are provided for most locations in both Celsius and Fahrenheit. Heating and cooling degree-days were computed relative to a base of 18.3/sup 0/C (65/sup 0/F). For each station, global anti K/sub T/ (cloudiness index) were calculated on a monthly and annual basis. (MHR)

Knapp, C L; Stoffel, T L; Whitaker, S D

1980-10-01T23:59:59.000Z

12

High performance steam development. Final report, Phase No. 3: 1500{degree}F steam plant for industrial cogeneration prototype development tests  

Science Conference Proceedings (OSTI)

As a key part of DOE`s and industry`s R&D efforts to improve the efficiency, cost, and emissions of power generation, a prototype High Performance Steam System (HPSS) has been designed, built, and demonstrated. The world`s highest temperature ASME Section I coded power plant successfully completed over 100 hours of development tests at 1500{degrees}F and 1500 psig on a 56,000 pound per hour steam generator, control valve and topping turbine at an output power of 5500 hp. This development advances the HPSS to 400{degrees}F higher steam temperature than the current best technology being installed around the world. Higher cycle temperatures produce higher conversion efficiencies and since steam is used to produce the large majority of the world`s power, the authors expect HPSS developments will have a major impact on electric power production and cogeneration in the twenty-first century. Coal fueled steam plants now produce the majority of the United States electric power. Cogeneration and reduced costs and availability of natural gas have now made gas turbines using Heat Recovery Steam Generators (HRSG`s) and combined cycles for cogeneration and power generation the lowest cost producer of electric power in the United States. These gas fueled combined cycles also have major benefits in reducing emissions while reducing the cost of electricity. Development of HPSS technology can significantly improve the efficiency of cogeneration, steam plants, and combined cycles. Figure 2 is a TS diagram that shows the HPSS has twice the energy available from each pound of steam when expanding from 1500{degrees}F and 1500 psia to 165 psia (150 psig, a common cogeneration process steam pressure). This report describes the prototype component and system design, and results of the 100-hour laboratory tests. The next phase of the program consists of building up the steam turbine into a generator set, and installing the power plant at an industrial site for extended operation.

Duffy, T.; Schneider, P.

1996-01-01T23:59:59.000Z

13

High-Fidelity Manikin-Based Simulation: A Study of Implications for Interprofessional Healthcare Practitioner Education at the Associate Degree Level of Study.  

E-Print Network (OSTI)

??Healthcare practitioner training programs, specifically at the associate degree level of study, have historically focused practitioner training efforts on discipline-specific programming and curricula. However, these… (more)

Fowler, Luster

2013-01-01T23:59:59.000Z

14

Degree Services Registrar's Office  

E-Print Network (OSTI)

Degree Services Registrar's Office Name (please print Fund. of Hydrogen as an Energy Carrier (1) _____ CM/ENT 3978 Hydrogen Measurements Laboratory (1/SS 4520 Sustainable Futures II (3)* _____ ENT 3956 Industrial Health and Safety (2)* _____ ENT 3975 Intro

15

Molecular Biology DEGREE PROGRAMME  

E-Print Network (OSTI)

BSc (Hons) Molecular Biology DEGREE PROGRAMME GUIDE 2013-2014 #12;BSc (Hons) Molecular Biology - Year 2 - Year 3 - Year 4 Introduction Molecular biology aims to understand living systems by focusing on the molecular components upon which they are built. Molecular biology is one of great successes of 20th century

Siddharthan, Advaith

16

Six degree of freedom sensor  

DOE Patents (OSTI)

This small, non-contact optical sensor increases the capability and flexibility of computer controlled machines by detecting its relative position to a workpiece in all six degrees of freedom (DOF). At a fraction of the cost, it is over 200 times faster and up to 25 times more accurate than competing 3-DOF sensors. Applications range from flexible manufacturing to a 6-DOF mouse for computers. Until now, highly agile and accurate machines have been limited by their inability to adjust to changes in their tasks. By enabling them to sense all six degrees of position, these machines can now adapt to new and complicated tasks without human intervention or delay--simplifying production, reducing costs, and enhancing the value and capability of flexible manufacturing.

Vann, Charles S. (Fremont, CA)

1999-01-01T23:59:59.000Z

17

Six degree of freedom sensor  

DOE Patents (OSTI)

This small, non-contact optical sensor increases the capability and flexibility of computer controlled machines by detecting its relative position to a workpiece in all six degrees of freedom (DOF). At a fraction of the cost, it is over 200 times faster and up to 25 times more accurate than competing 3-DOF sensors. Applications range from flexible manufacturing to a 6-DOF mouse for computers. Until now, highly agile and accurate machines have been limited by their inability to adjust to changes in their tasks. By enabling them to sense all six degrees of position, these machines can now adapt to new and complicated tasks without human intervention or delay--simplifying production, reducing costs, and enhancing the value and capability of flexible manufacturing. 3 figs.

Vann, C.S.

1999-03-16T23:59:59.000Z

18

Heating Degree Days  

U.S. Energy Information Administration (EIA) Indexed Site

Heating Degree Days Heating Degree Days New England ................ 2,626 737 115 2,062 3,105 849 159 2,247 3,184 872 136 2,180 5,541 6,359 6,373 Middle Atlantic .............. 2,326 576 85 1,899 2,906 672 123 2,041 2,924 682 90 1,986 4,886 5,742 5,682 E. N. Central ................. 2,440 621 139 2,150 3,279 772 119 2,343 3,141 726 129 2,230 5,350 6,514 6,227 W. N. Central ................ 2,515 520 143 2,360 3,424 908 103 2,541 3,216 677 152 2,404 5,539 6,976 6,450 South Atlantic ............... 1,129 168 16 992 1,513 217 21 1,059 1,466 202 16 1,010 2,306 2,809 2,695 E. S. Central ................. 1,361 180 28 1,326 1,939 289 16 1,430 1,839 245 23 1,336 2,896 3,675 3,443 W. S. Central ................ 913 38 3 729 1,189 141 2 909 1,150 83 5 821 1,682 2,239 2,060 Mountain ....................... 2,063 542 98 1,741 2,430 689 101 1,885 2,189 642 130 1,817 4,444

19

Property/composition relationships for Hanford high-level waste glasses melting at 115{degrees}C volume 1: Chapters 1-11  

Science Conference Proceedings (OSTI)

A Composition Variation study (CVS) is being performed within the Pacific Northwest Laboratory Vitrification Technology Development (PVTD) project in support of a future high-level nuclear waste vitrification plant at the Hanford site in Washington. From 1989 to 1994, over 120 nonradioactive glasses were melted and properties measured in five statistically-designed experimental phases. Glass composition is represented by the 10 components SiO{sub 2}, B{sub 2}O{sub 3}, Al{sub 2}O{sub 3}, Fe{sub 2}O{sub 3}, ZrO{sub 2}, Na{sub 2}O, Li{sub 2}O, CaO, MgO, and Others (all remaining components). The properties measured include viscosity ({eta}), electrical conductivity ({epsilon}), glass transition temperature (T{sub g} ), thermal expansion of solid glass ({alpha}{sub s}) and molten glass ({alpha}{sub m}), crystallinity (quenched and canister centerline cooled glasses), liquidus temperature (T{sub L}), durability based on normalized elemental releases from the Materials Characterization Center-1 28-day dissolution test (MCC-1, r{sub mi}) and the 7-day Product Consistency Test (PCT, r{sub pi}), and solution pHs from MCC-1 and PCT. Amorphous phase separation was also evaluated. Empirical first- and second-order mixture models were fit using the CVS data to relate the various properties to glass composition. Equations for calculating the uncertainty associated with property values predicted by the models were also developed. The models were validated using both internal and external data. Other modeling approaches (e.g., non-bridging oxygen, free energy of hydration, phase-equilibria T{sub L}) were investigated for specific properties. A preliminary Qualified Composition Region was developed to identify glass compositions with high confidence of being processable in a melter and meeting waste form acceptance criteria.

Hrma, P.R.; Piepel, G.F.

1994-12-01T23:59:59.000Z

20

Energy Efficiency Report--Glossary  

Gasoline and Diesel Fuel Update (EIA)

Thermal Unit (Btu): The quantity of heat needed to raise the temperature of 1 pound of water by 1 degree Fahrenheit at or near 39.2 degrees Fahrenheit. Census Region: A geographic...

Note: This page contains sample records for the topic "degrees fahrenheit high" 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

2degrees | Open Energy Information  

Open Energy Info (EERE)

degrees degrees Jump to: navigation, search Name 2degrees Place Oxford, England, United Kingdom Zip OX2 7HT Product Oxford-based collaborative network provider for sustainability professionals. Coordinates 43.781517°, -89.571699° 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":43.781517,"lon":-89.571699,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

22

3Degrees | Open Energy Information  

Open Energy Info (EERE)

Degrees Degrees Jump to: navigation, search Logo: 3Degrees Name 3Degrees Address 2 Embarcadero Center Suite 2950 Place San Francisco, California Zip 94111 Sector Bioenergy, Buildings, Carbon, Geothermal energy, Services, Solar, Wind energy Product Environmental Commodities Year founded 2007 Number of employees 51-200 Phone number 415.449.0500 Website http://www.3degreesinc.com/ Coordinates 37.7983181°, -122.4000032° 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":37.7983181,"lon":-122.4000032,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

23

Engineering and design Taught degrees  

E-Print Network (OSTI)

in Mechanical Engineering MSc in Satellite Communication Systems MSc in Sustainable Energy Technology Research, mathematics, physics or an applied science. Also refer to Applicant profile, listed with relevant course in Mechanical Engineering, the MSc in Sustainable Energy Technology or a research degree, we must receive your

Sussex, University of

24

Heating Degree Day Data Applied to Residential Heating Energy Consumption  

Science Conference Proceedings (OSTI)

Site-specific total electric energy and heating oil consumption for individual residences show a very high correlation with National Weather Service airport temperature data when transformed to heating degree days. Correlations of regional total ...

Robert G. Quayle; Henry F. Diaz

1980-03-01T23:59:59.000Z

25

REWAS 2008: Hotel and Travel  

Science Conference Proceedings (OSTI)

The 40-mile coastline offers warm waters, calm surf and white sandy beaches. Average temperature is 25.5 degrees Celsius (78 degrees Fahrenheit).

26

What is REWAS 2008?  

Science Conference Proceedings (OSTI)

calm surf and white sandy beaches. Average temperature is. 25.5 degrees Celsius (78 degrees Fahrenheit). Downtown Cancun provides lively night clubs and.

27

Estimation of Daily Degree-hours  

Science Conference Proceedings (OSTI)

Degree-hours have many applications in fields such as agriculture, architecture, and power generation. Since daily mean temperatures are more readily available than hourly temperatures, the difference between mean daily degree-hours computed from ...

Nathaniel B. Guttman; Richard L. Lehman

1992-07-01T23:59:59.000Z

28

EFFECT OF DENTAL POLYMER DEGREE OF CONVERSION ...  

Science Conference Proceedings (OSTI)

Effect of Dental Polymer Degree of Conversion on Oral Biofilms. Alison Kraigsley, Sheng Lin-Gibson, Nancy J. Lin. National ...

29

Heating degree days | OpenEI  

Open Energy Info (EERE)

Heating degree days Heating degree days Dataset Summary Description The National Oceanic and Atmospheric Administration's (NOAA) National Environmental Satellite, Data, and Information Services (NESDIS), in conjunction with the National Climatic Data Center (NCDC) publish monthly and annual climate data by state for the U.S., including, heating degree days (total number of days per month and per year). The average values for each state are weighted by population, using 2000 Census data. The base temperature for this dataset is 65 degrees F. Source NOAA Date Released Unknown Date Updated June 24th, 2005 (9 years ago) Keywords climate Heating degree days NOAA Data application/vnd.ms-excel icon Heating Degree Data, by State (xls, 208.4 KiB) Quality Metrics Level of Review Some Review

30

JOINT DEGREE PROGRAM LEADING TO THE  

E-Print Network (OSTI)

programs prior to beginning their graduate work. If a student decides to enter the combined program after with advanced work may be admitted to the Graduate School through the Graduate Program in Urban PlanningJOINT DEGREE PROGRAM LEADING TO THE MASTER OF URBAN PLANNING AND MASTER OF ARTS IN GEOGRAPHY DEGREE

Peterson, Blake R.

31

cooling degree days | OpenEI  

Open Energy Info (EERE)

cooling degree days cooling degree days Dataset Summary Description The National Oceanic and Atmospheric Administration's (NOAA) National Environmental Satellite, Data, and Information Services (NESDIS), in conjunction with the National Climatic Data Center (NCDC) publish monthly and annual climate data by state for the U.S., including, cooling degree days (total number of days per month and per year). The average values for each state are weighted by population, using 2000 Census data. The base temperature for this dataset is 65 degrees F. Source NOAA Date Released Unknown Date Updated June 24th, 2005 (9 years ago) Keywords climate cooling degree days NOAA Data application/vnd.ms-excel icon hcs_51_avg_cdd.xls (xls, 215.6 KiB) Quality Metrics Level of Review Some Review

32

Press Pass - Press Release - Evidence for significant matter...  

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

structures operate inside containers known as cryomodules, which chill the cavities to -456 degrees Fahrenheit, a temperature where they can conduct electric current without...

33

Download Exhibitor Prospectus  

Science Conference Proceedings (OSTI)

while carefully blending in cosmopolitan progress. With over 300 days of sunshine annually and an average temperature of 68.8 degrees Fahrenheit,.

34

SLAC National Accelerator Laboratory - Synchrotrons Explore Water...  

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

fluoride crystal. This surface was expected to stimulate ice formation, but even when chilled to a temperature of about 6.5 degrees Fahrenheit - well below water's normal...

35

Experimentation and Measurement  

Science Conference Proceedings (OSTI)

... the following words: degree Fahrenheit; inch, foot, and mile; ounce, pound, and ton; pint, quart, and gallon; volt, ampere, and kilowatt hours; second ...

2012-09-08T23:59:59.000Z

36

SANDIA CORPORATION SF 6432-CL (11-98) SECTION II STANDARD ...  

during the heating season and between 76 and 80 degrees Fahrenheit during the cooling . ... leaking or obstruction of pipes, or resulting from any ...

37

International Conservation Emphasis Resource Conservation Degree  

E-Print Network (OSTI)

International Conservation Emphasis Resource Conservation Degree Faculty Advisors Steve Siebert) 243-6062, Office: CHCB 467 Goals The International Conservation emphasis is an interdisciplinary course of study that addresses opportunities and constraints to the use, management and conservation

Crone, Elizabeth

38

Climate: monthly and annual average cooling degree days above...  

Open Energy Info (EERE)

at one-degree resolution of the World from NASASSE

(Abstract):  
Cooling Degree Days above 10 C (degree days)
The monthly accumulation of degrees when...

39

Commissioning of SLAC SLD 45-Degree Chambers  

E-Print Network (OSTI)

The SLD experiment at the Stanford Linear Accelerator Center had a significant gap in its muon tracking coverage, provided by the Warm Iron Calorimeter. Supplemental planes of limited streamer tube chambers were added to improve the coverage in the vicinity of the gap at 0.65 commissioning of the forty-five degree chamber region of the SLAC SLD Warm Iron Calorimeter is presented. This task involved the completion of the forty-five degree chamber region geometry for the Warm Iron Calorimeter's fitter and swimmer and the changing of the way multiple scattering effects are treated in the fitter algorithm.

V. O. Eschenburg

2002-07-30T23:59:59.000Z

40

Estimates of Spatial Degrees of Freedom  

Science Conference Proceedings (OSTI)

The spatial degrees of freedom (dof) of atmospheric flows are estimated by comparing the variance of the theoretical standardized chi-squared distribution with the sum of the squared eigenvalues of a spatial correlation matrix, dof = N2/?I = 1N?i...

Klaus Fraedrich; Christine Ziehmann; Frank Sielmann

1995-02-01T23:59:59.000Z

Note: This page contains sample records for the topic "degrees fahrenheit high" 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

Nuclear engineering enrollments and degrees, 1994: Appendixes  

SciTech Connect

This survey is designed to include those programs sponsored by the Department of Energy. The survey is designed to include those programs offering a major in nuclear engineering or course work equivalent to a major in other engineering disciplines that prepare the graduates to perform as nuclear engineers. This survey provides data on nuclear engineering enrollments and degrees for use in labor market analyses, information on education programs for students, and information on new graduates to employers, government agencies, academia and professional societies.

1995-05-01T23:59:59.000Z

42

Building Energy Software Tools Directory: Degree Day Reports  

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

Reports Degree Day Reports image Quick and easy web-based tool that provides free historical degree days for 1,200 stations in the U.S. and Canada, 1994 to present. Degree Day...

43

Video: Microbial Bebop - "Fifty Degrees North, Four Degrees West" | Argonne  

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

Video: Microbial Bebop - "Fifty Degrees North, Four Degrees West" Video: Microbial Bebop - "Fifty Degrees North, Four Degrees West" Share Topic Environment Biology Environmental biology Metagenomics This musical composition was created from data of microbes (bacteria, algae and other microorganisms) sampled in the English Channel. Argonne National Laboratory biologist Peter Larsen created the songs as a unique way to present and comprehend large datasets. More details: All of the data in this composition derives from twelve observed time points collected at monthly intervals at the L4 Station during 2007. The composition is composed of seven choruses. Each chorus has the same chord progression of 12 measures each in which chords are derived from monthly measures of temperature and chlorophyll A concentrations. The

44

The Euclidean Distance Degree of an Algebraic Variety  

E-Print Network (OSTI)

polynomials F1,...,Fc of degrees d1,...,dc whose variety has ED degree larger than (2.8). ...... Rekha Thomas, University of Washington, Box 354350, Seattle, WA ...

45

Nonlinear conformal-degree preserving Dirac equations  

E-Print Network (OSTI)

Nonlinear Dirac equations in D+1 space-time are obtained by variation of the spinor action whose Lagrangian components have the same conformal degree and the coupling parameter of the self-interaction term is dimensionless. In 1+1 dimension, we show that these requirements result in the "conventional" quartic form of the nonlinear interaction and present the general equation for various coupling modes. These include, but not limited to, the Thirring and Gross-Neveu models. We obtain a numerical solution for the special case of the spin and pseudo-spin symmetric modes..

A. D. Alhaidari

2012-12-25T23:59:59.000Z

46

Building Energy Software Tools Directory: Degree Day .Net  

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

Degree Day .Net Degree Day .Net Logo for Degree Day.net Website that generates heating and cooling degree days for locations worldwide. Degree days are commonly used in calculations relating to building energy consumption. Once you have chosen a weather station (of which there are thousands available) and specified the degree days you want (e.g. what base temperature, do you want them broken down in daily, weekly or monthly format), Degree Days.net will calculate your degree days, and give them to you as a CSV file that you can open directly in a spreadsheet. Screen Shots Keywords degree days, HDD, CDD Validation/Testing A comprehensive suite of automated tests have been written to test the software. Expertise Required Degree Days.net makes it very easy to specify and generate degree days, so

47

On degree bounds for separating invariants  

E-Print Network (OSTI)

Let a group $G$ act on a finite dimensional vector space $V$ over an algebraically closed field $K$ of characteristic $p$. Then $\\beta_{\\sep}(G)$ is the minimal number such that, for any $V$, the invariants of degree less or equal than this number have the same separating properties as the whole invariant ring $K[V]^{G}$. Derksen and Kemper have shown $\\beta_{\\sep}(G)\\le |G|$. We show $\\beta_{\\sep}(G)=|G|$ for $p$-groups and cyclic groups, and $\\beta_{\\sep}(G)=\\infty$ for infinite unipotent groups. We also show $\\beta_{\\sep}(G)\\le \\beta_{\\sep}(G/N)\\beta_{\\sep}(N)$ for a normal divisor $N$ of finite index.

Kohls, Martin

2010-01-01T23:59:59.000Z

48

Word Pro - Untitled1  

U.S. Energy Information Administration (EIA) Indexed Site

7 Solar Thermal Collector Domestic Shipments by Market Sector, End-Use, and Type, 2009 7 Solar Thermal Collector Domestic Shipments by Market Sector, End-Use, and Type, 2009 End Use Market Sector Type of Collector End Use by Type of Collector 294 U.S. Energy Information Administration / Annual Energy Review 2011 1 Combined space and water heating. 2 Space heating, combined heating, and space cooling. 3 Collectors that generally operate at temperatures below 110 degrees Fahrenheit. 4 Collectors that generally operate in the temperature range of 140 degrees Fahrenheit to 180 degrees Fahrenheit but can also operate at temperatures as low as 110 degrees Fahrenheit. 5 Collectors that generally operate at temperatures above 180 degrees Fahrenheit. 6 Water heating and combined heating.

49

annual average heating degree days | OpenEI  

Open Energy Info (EERE)

average heating degree days average heating degree days Dataset Summary Description (Abstract): Heating Degree Days below 18° C (degree days)The monthly accumulation of degrees when the daily mean temperature is below 18° C.NASA Surface meteorology and Solar Energy (SSE) Release 6.0 Data Set (Nov 2007)22-year Monthly Average & Annual Sum (July 1983 - June 2005)Parameter: Heating Degree Days Below 18 degrees C (degree days)Internet: http://eosweb.larc.nasa.gov/sse/ Source U.S. National Aeronautics and Space Administration (NASA), Surface meteorology and Solar Energy (SSE) Date Released March 31st, 2009 (5 years ago) Date Updated April 01st, 2009 (5 years ago) Keywords annual average heating degree days climate GIS NASA SWERA UNEP Data application/zip icon Download Shapefile (zip, 2.7 MiB)

50

Multiple-degree-of-freedom vehicle  

DOE Patents (OSTI)

A multi-degree-of-freedom vehicle employs a compliant linkage to accommodate the need for a variation in the distance between drive wheels or drive systems which are independently steerable and drivable. The subject vehicle is provided with rotary encodes to provide signals representative of the orientation of the steering pivot associated with each such drive wheel or system, and a linear encoder which issues a signal representative of the fluctuations in the distance between the drive elements. The wheels of the vehicle are steered and driven in response to the linear encoder signal, there being provided a controller system for minimizing the fluctuations in the distance. The controller system is a software implementation of a plurality of controllers, operating at the chassis level and at the vehicle level. A trajectory interpolator receives x-displacement, y-displacement, and .theta.-displacement signals and produces to the vehicle level controller trajectory signals corresponding to interpolated control signals. The x-displacement, y-displacement, and .theta.-displacement signals are received from a human operator, via a manipulable joy stick.

Borenstein, Johann (Ann Arbor, MI)

1995-01-01T23:59:59.000Z

51

CX-003211: Categorical Exclusion Determination | Department of Energy  

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

1: Categorical Exclusion Determination 1: Categorical Exclusion Determination CX-003211: Categorical Exclusion Determination Geothermal Development in Hot Springs Valley CX(s) Applied: A9, B3.1, B5.12 Date: 08/04/2010 Location(s): Montana Office(s): Energy Efficiency and Renewable Energy, Golden Field Office Flathead Electric Co-op would re-work an existing geothermal well to explore greater depths for 165 degrees Fahrenheit waters adequate to generate up to 10 megawatts of power through low temperature binary cycle generation. The existing well was drilled in 1982 to a depth of 261 feet encountering temperatures as high as 135 degrees Fahrenheit. The only laboratory work anticipated is water sampling analysis that would be done at local laboratories. DOCUMENT(S) AVAILABLE FOR DOWNLOAD CX-003211.pdf

52

The degree and connectivity of Internet's scale-free topology  

E-Print Network (OSTI)

In this paper we theoretically and empirically study the degree and connectivity of the Internet's scale-free topology at the autonomous system (AS) level. The basic features of the scale-free network have influence on the normalization constant of the degree distribution p(k). We develop a mathematics model of the Internet's scale-free topology. On this model we theoretically get the formulas of the average degree, the ratios of the kmin-degree (minimum degree) nodes and the kmax-degree (maximum degree) nodes, the fraction of the degrees (or links) in the hands of the richer (top best-connected) nodes. We find the average degree is larger for smaller power-law exponent {\\lambda} and larger minimum or maximum degree. The ratio of the kmin-degree nodes is larger for larger {\\lambda} and smaller kmin or kmax. The ratio of the kmax-degree ones is larger for smaller {\\lambda} and kmax or larger kmin. The richer nodes hold most of the total degrees of the AS-level Internet topology. In addition, we reveal the rati...

Zhang, Lianming; Yu, Jianping; Wu, Xiangsheng

2011-01-01T23:59:59.000Z

53

Building Energy Software Tools Directory: Degree Day Forecasts  

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

Forecasts Forecasts Degree Day Forecasts example chart Quick and easy web-based tool that provides free 14-day ahead degree day forecasts for 1,200 stations in the U.S. and Canada. Degree Day Forecasts charts show this year, last year and three-year average. Historical degree day charts and energy usage forecasts are available from the same site. Keywords degree days, historical weather, mean daily temperature Validation/Testing Degree day data provided by AccuWeather.com, updated daily at 0700. Expertise Required No special expertise required. Simple to use. Users Over 1,000 weekly users. Audience Anyone who needs degree day forecasts (next 14 days) for the U.S. and Canada. Input Select a weather station (1,200 available) and balance point temperature. Output Charts show (1) degree day (heating and cooling) forecasts for the next 14

54

ORISE: Report shows number of health physics degrees for 2010  

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

ORISE report shows number of health physics degrees increased for graduates, decreased for undergraduates in 2010 Decreased number of B.S. degrees remains higher than levels in the...

55

Health Physics Enrollents and Degrees Survey, 2006 Data  

SciTech Connect

This annual survey collects 2006 data on the number of health physics degrees awarded as well as the number of students enrolled in health physics academic programs. Thirty universities offer health physics degrees; all responded to the survey.

Oak Ridge Institute for Science and Education

2007-03-31T23:59:59.000Z

56

SIMON FRASER UNIVERSITY Honorary Degree Citations  

E-Print Network (OSTI)

public and community participation in the planning process; he worked with neighbourhoods and developers Plan, The city's High Building Policies, the Canada Line and Evergreen transit routes, and the creation and lively community life to a university that once was thought to be but a commuter university. Ray Spaxman

57

Health Physics Enrollments and Degrees Survey, 2004 Data  

Science Conference Proceedings (OSTI)

This annual report details the the number of health physics bachelor's, master's, and doctoral degrees awarded at a sampling of academic programs from 1998-2004. It also looks at health physics degrees by curriculum and the number of students enrolled in health physics degree programs at 28 U.S. universities in 2004.

Oak Ridge Institute for Science and Education

2005-03-01T23:59:59.000Z

58

Health Physics Enrollments and Degrees Survey, 2005 Data  

Science Conference Proceedings (OSTI)

This annual report details the number of health physics bachelor's, master's, and postdoctoral degrees awarded at a sampling of academic programs from 1998-2005. It also looks at health physics degrees by curriculum and the number of students enrolled in health physics degree programs at 30 U.S. universities in 2005.

Oak Ridge Institute for Science and Education

2006-03-01T23:59:59.000Z

59

Nuclear Engineering Enrollments and Degrees Survey, 2005 Data  

SciTech Connect

This annual report details the number of nuclear engineering bachelor's, master's, and doctoral degrees awarded at a sampling of academic programs from 1998-2005. it also looks at nuclear engineering degrees by curriculum and the number of students enrolled in nuclear engineering degree programs at 30 U.S. universities in 2005.

Oak RIdge Institute for Science and Education

2006-03-01T23:59:59.000Z

60

high  

Gasoline and Diesel Fuel Update (EIA)

0 0 Summary Our short-term outlook for a wide array of energy prices has been adjusted upward as international and domestic energy supply conditions have tightened. We think that crude oil prices are as likely as not to end the year $2 to $3 per barrel higher than our previous projections. Thus, we think that the probability of West Texas Intermediate costing an average of $30 per barrel or more at midwinter is about 50 percent. On their current track, heating oil prices are likely to be about 30 percent above year-ago levels in the fourth quarter. Prices for Q1 2001 seem more likely now to match or exceed the high level seen in Q1 2000. Tight oil markets this year and an inherent propensity for high gas utilization in incremental power supply have resulted in rising North American natural gas

Note: This page contains sample records for the topic "degrees fahrenheit high" 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.


61

Nuclear Engingeering Enrollments and Degrees Survey, 2008 Data  

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

SURVEY UNIVERSE SURVEY UNIVERSE The survey includes degrees granted between September 1, 2007, and August 31, 2008, and fall 2008 enrollments. Thirty-one academic programs reported having nuclear engineering programs during 2008, and data was provided by all thirty-one programs. DEGREE DATA Bachelor's Degrees. The number of B.S. degrees granted in 2008 by nuclear engineering programs increased by 10% over 2007, and is the highest number reported since 1988. (See Table 1.) This is the fifth consecutive year of increases. The rate of increase in 2008 was, however, the lowest in five years. Nuclear engineering majors accounted for 89% of all B.S. degrees. (See Table 2.) Graduate Degrees. The number of master's degrees granted in 2008 increased for the sixth consecutive

62

ORISE: Report shows number of health physics degrees for 2010  

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

report shows number of health physics degrees increased for report shows number of health physics degrees increased for graduates, decreased for undergraduates in 2010 Decreased number of B.S. degrees remains higher than levels in the early 2000 FOR IMMEDIATE RELEASE Dec. 20, 2011 FY12-09 OAK RIDGE, Tenn.-The number of health physics graduate degrees increased for both master's and doctoral candidates in 2010, but decreased for bachelor's degrees, says a report released this year by the Oak Ridge Institute for Science and Education. The ORISE report, Health Physics Enrollments and Degrees Survey, 2010 Data, surveyed 24 academic programs with enrollment and degree data and included students majoring in health physics or in an option program equivalent to a major, such as other health physics-based programs embedded in life

63

high  

Gasoline and Diesel Fuel Update (EIA)

0 0 Highlights International Oil Markets Prices. We have raised our world oil price projection by about $2 per barrel for this month because of assumed greater compliance by OPEC to targeted cuts, especially for the second quarter of 2000 (Figure 1). The expected decline in world petroleum inventories continues (Figure 2), and, given the generally stiff resolve of OPEC members to maintain production cuts, any sign of a turnaround in stocks may be postponed until later this year than previously assumed (Q3 instead of Q2). Our current estimate for the average import cost this past January is now $25 per barrel, a nearly $15-per-barrel increase from January 1999. Crude oil prices are expected to remain at relatively high levels for the first half of 2000, but

64

Pore geometry in woven fiber structures: 0{degree}/90{degree} plain-weave cloth layup preform  

Science Conference Proceedings (OSTI)

Composite preform fiber architectures range from the very simple to the complex, and the extremes are typified by parallel continuous fibers and complicated three-dimensional woven structures. Subsequent processing of these preforms to produce dense composites may depend critically on the geometry of the interfiber porosity. The goal of this study is to fully characterize the structure of a 0{degree}/90{degree} cloth layup preform using x-ray tomographic microscopy (XTM). This characterization includes the measurement of intercloth channel widths and their variability, the transverse distribution of through-cloth holes, and the distribution of preform porosity. The structure of the intercloth porosity depends critically on the magnitude and direction of the offset between adjacent cloth layers. The structures observed include two-dimensional networks of open pipes linking adjacent holes, arrays of parallel one-dimensional pipes linking holes, and relatively closed channels exhibiting little structure, and these different structures would appear to offer very different resistances to gas flow through the preform. These measurements, and future measurements for different fiber architectures, will yield improved understanding of the role of preform structure on processing. {copyright} {ital 1998 Materials Research Society.}

Lee, S. [Republic of Korea Army Headquarters, Chungnam, Nonsan, Duma Namson (Republic of Korea); Stock, S.R. [School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, Georgia30332-0245 (United States); Butts, M.D. [Chicago Bridge and Iron, Chicago, Illinois (United States); Starr, T.L. [School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, Georgia30332-0245 (United States); Breunig, T.M. [Department of Restorative Dentistry, University of California, San Francisco, California94143-0758 (United States); Kinney, J.H. [Chemistry and Materials Science Department, Lawrence Livermore National Laboratory, Livermore, California94550 (United States)

1998-05-01T23:59:59.000Z

65

Countries Commit to White Roofs, Potentially Offsetting the Emissions...  

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

when the building is air-conditioned.1 On buildings without air conditioning, a white roof can reduce inside temperatures by 2 to 3 degrees Celsius (4 to 5 degrees Fahrenheit),...

66

New Degree Programs Plug Students in to Energy Fields - Materials ...  

Science Conference Proceedings (OSTI)

Aug 25, 2009 ... ESTEC now has four energy system programs and plans to add a nuclear operations degree in January and hydroelectric and geothermal ...

67

Brief 70 Nuclear Engineering Enrollments and Degrees, 2011 Summary Information  

SciTech Connect

The survey includes degrees granted between September 1, 2010 and August 31, 2011. Enrollment information refers to the fall term 2011. The enrollment and degree data include students majoring in nuclear engineering or in an option program equivalent to a major. Thirty-two academic programs reported having nuclear engineering programs during 2011, and data was received from all thirty-two programs. The data for two nuclear engineering programs include enrollments and degrees in health physics options that are also reported in the health physics enrollments and degrees data.

Dr. Don Johnson

2012-10-31T23:59:59.000Z

68

Spin and Charge Degrees of Freedom in the Copper Oxide ...  

Science Conference Proceedings (OSTI)

... Spin and Charge Degrees of Freedom in the Copper Oxide Superconductor La 2-x Ba x CuO 4. Sarah Dunsiger, McMaster University. ...

69

Health Physics Enrollments and Degrees Survey, 2007 Data  

SciTech Connect

The survey includes degrees granted between September 1, 2006 and August 31, 2007. Enrollment information refers to the fall term 2007. Twenty-nine academic programs were included in the survey universe, and 28 of the 29 responded. The report includes data by degree level including citizenship, gender, and race/ethnicity plus enrollments of junior and senior undergraduate students and graduate students.

Analysis and Evaluation, Science Education Programs

2008-04-01T23:59:59.000Z

70

Brief 67 Health Physics Enrollments and Degrees Survey, 2009 Data  

SciTech Connect

This survey includes degrees granted between September 1, 2008 and August 31, 2009. Enrollment information refers to the fall term 2009. Twenty-four academic programs were included in the survey universe, and all twenty-four responded. The report includes data by degree level including citizenship, gender, and race/ethnicity, plus enrollments of junior and senior undergraduate students and graduate students.

Dr. Larry M. Blair, Analysis and Evaluation, Science Education Programs

2010-03-01T23:59:59.000Z

71

Bachelor of Arts in Social Work Degree (BASW) Program  

E-Print Network (OSTI)

Bachelor of Arts in Social Work Degree (BASW) Program e School of Social Work offers a Bachelor of Arts degree with a major in Social Work. is new BASW program is the only baccalaureate social work program in the Oregon University System. e Portland State University's School of Social Work is excited

72

Study in Indonesia... and gain credit towards your degree! JournalismProfessionalPracticum  

E-Print Network (OSTI)

Study in Indonesia... and gain credit towards your degree! JournalismProfessionalPracticum inIndonesia will deep- en their understanding of Indonesia whilst developing their journalism skills within will be a high-calibre journalist who has experience with different elements of the media in both Indonesia

73

Study in Indonesia and gain credit towards your degree! InternationalRelationsinIndonesia  

E-Print Network (OSTI)

Study in Indonesia and gain credit towards your degree! InternationalRelationsinIndonesia, Europe and the United States as well as Indonesia, are highly qualified and ex- perienced as both the Australia Indonesia Institute, the Department of Education, Employment and Workplace Relations, the Myer

74

Photo of the Week: What You Needed to Contain 100 Million Degree Plasma for  

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

Photo of the Week: What You Needed to Contain 100 Million Degree Photo of the Week: What You Needed to Contain 100 Million Degree Plasma for 100 Millionths of a Second... in 1974 Photo of the Week: What You Needed to Contain 100 Million Degree Plasma for 100 Millionths of a Second... in 1974 April 22, 2013 - 4:59pm Addthis In the early years of magnetic fusion, there was talk among scientists of controlling nuclear energy to create useful power. To do this, scientists heated plasma to temperatures as high as 100 million degrees Celsius -- ten times hotter than the center of the sun. Controlling such high levels of energy required the construction of large machines that could withstand these extremely high energy levels. In this 1974 photo, laboratory scientists are shown working on Scyllac, one of the largest machines used for magnetic fusion experiments, located at Los Alamos National Laboratory. Scyllac filled a 100-by-100-foot building from wall to wall, and used 12 miles of one-inch cables and 3,000 capacitors to contain hot plasma the size of a small garden hose for just 100 millionths of a second. Learn more about early magnetic fusion experiments at LANL. | Photo courtesy of Los Alamos National Laboratory.

75

The Complexity of Approximating Bounded-Degree Boolean #CSP  

E-Print Network (OSTI)

The degree of a CSP instance is the maximum number of times that a variable may appear in the scope of constraints. We consider the approximate counting problem for Boolean CSPs with bounded-degree instances for constraint languages containing the two unary constant relations {0} and {1}. When the maximum degree is at least 25 we obtain a complete classification of the complexity of this problem. It is exactly solvable in polynomial-time if every relation in the constraint language is affine. It is equivalent to the problem of approximately counting independent sets in bipartite graphs if every relation can be expressed as conjunctions of {0}, {1} and binary implication. Otherwise, there is no FPRAS unless NP=RP. For lower degree bounds, additional cases arise in which the complexity is related to the complexity of approximately counting independent sets in hypergraphs.

Dyer, Martin; Jalsenius, Markus; Richerby, David

2009-01-01T23:59:59.000Z

76

A kinematic coupling based 6 degrees of freedom dynamometer  

E-Print Network (OSTI)

A new 6-degree of freedom dynamometer is presented. Six load cells measure the normal forces at the contact points of a three groove kinematic coupling. Three toggle clamps are used to preload the machine, so that it does ...

Moreu Gamazo, Jaime

2009-01-01T23:59:59.000Z

77

Energy Management Degree Specialization at Texas A&M University  

E-Print Network (OSTI)

The Department of Mechanical Engineering at Texas A&M offers unique degree programs with a specialization in energy management. The most popular of the degree offered is a professional degree, the Master of Engineering, which blends technical courses in energy management with professional development courses such as finance, management accounting, and economics. The industrial-oriented degree also requires a 3-6 month internship in industry, for which the students receive academic credit. The internship program allows students to receive valuable on-the-job experience while providing industries with trained engineers to assist in solving specific problems. The overall objective of the energy management program is to train industrial energy managers who will be able to help solve one of the most urgent, long-term problems facing this country--the energy shortage.

Murphy, W. E.

1984-04-01T23:59:59.000Z

78

Degree-Day Formulations and Application in Turkey  

Science Conference Proceedings (OSTI)

Degree-days are fundamental design parameters in many application fields such as power generation and consumption, agriculture, architecture, snow melt estimation, environmental energy planning, population siting, and military domains. Depending ...

Mikdat Kadioglu; Zekai ?en

1999-06-01T23:59:59.000Z

79

Estimating Historical Heating and Cooling Needs. Per Capita Degree Days  

Science Conference Proceedings (OSTI)

Time series of approximate United States average annual per capita heating and cooling degree days for the years 1895–1983 are presented. The data reflect the combined effects of climate fluctuations and population shifts, and can be used in ...

M. W. Downton; T. R. Stewart; K. A. Miller

1988-01-01T23:59:59.000Z

80

Nuclear Engineering Enrollments and Degrees Survey, 2008 Data  

SciTech Connect

The survey includes degrees granted between September 1, 2007, and August 31, 2008, and fall 2008 enrollments. Thirty-one academic programs reported having nuclear engineering programs during 2008, and data was provided by all thirty-one programs.

Analysis and Evaluation, Science Education Programs

2009-03-30T23:59:59.000Z

Note: This page contains sample records for the topic "degrees fahrenheit high" 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

Nuclear Engineering Enrollments and Degrees Survey, 2007 Data  

SciTech Connect

The survey includes degrees granted between September 1, 2006, and August 1, 2007, and fall 2007 enrollments. Thirty-one academic programs reported having nuclear engineering programs during 2007, and data was obtained for all thirty-one.

Analysis and Evaluation, Science Education Programs

2008-03-01T23:59:59.000Z

82

Brief 66 Nuclear Engineering Enrollments and Degrees Survey, 2009 Data  

SciTech Connect

The survey includes degrees granted between September 1, 2008 and August 31, 2009, and fall 2009 enrollments. Thirty-two academic programs reported having nuclear engineering programs during 2009, and data was obtained from all thirty-two.

Dr. Larry M. Blair, Analysis and Evaluation, Science Education Programs

2010-03-01T23:59:59.000Z

83

Health Physics Enrollments and Degrees Survey, 2008 Data  

SciTech Connect

The survey includes degrees granted between September 1, 2007 and August 31, 2008. Enrollment information refers to the fall term 2008. Twenty-six academic programs were included in the survey universe, and all 26 programs provided data.

Analysis and Evaluation, Science Education Programs

2009-03-30T23:59:59.000Z

84

German noch so: scalar degree operator and negative polarity item  

Science Conference Proceedings (OSTI)

This paper describes a puzzle introduced by German noch so, a degree operator and Negative Polarity Item. Noch so sentences allow for paraphrases containing a scalar particle (like even), suggesting that its polarity sensitivity can receive an analysis ...

Bernhard Schwarz

2009-12-01T23:59:59.000Z

85

College of Agriculture Departments and Degree Programs Agricultural  

E-Print Network (OSTI)

Agricultural Education Animal & Range Sciences Land Resources & Environmental Sciences Immunology & Infectious Diseases Multi Disciplinary Agricultural Business Agricultural Education Animal Science Natural Resources & Rangeland Ecology Environmental Sciences Pre-Vet Program (non-degree) Biotechnology Sustainable Foods

Lawrence, Rick L.

86

Variability of Population-Weighted Seasonal Heating Degree Days  

Science Conference Proceedings (OSTI)

Regional and national heating fuel demand is related to both weather and population density. This study analyzes the variability of population-weighted, seasonal heating degree days for the coterminous 48 states. A risk assessment of unusual ...

Nathaniel B. Guttman

1983-03-01T23:59:59.000Z

87

Dynamics of Manipulators with Less Than One Degree of Freedom  

E-Print Network (OSTI)

We have developed an efficient Lagrangian formulation of manipulators with small numbers of degrees of freedom. The efficiency derives from the lack of velocities, accelerations, and generalized forces. The number of ...

Hillis, D.

88

Composite bearing and seal materials for advanced heat engine applications to 900 degree C  

DOE Green Energy (OSTI)

Plasma sprayed composite coatings of metal-bonded chromium carbide with additions of silver and thermochemically stable fluorides were previously reported to be lubricative in pin on disk bench tests from room temperature to 900{degree}C. An early coating formulation of this type, designated as PS200, was successfully tested as a cylinder coating in a Stirling engine at a TRRT of 760{degree}C (1450{degree}F) in a hydrogen atmosphere, and as a backup lubricant for gas bearings to 650{degree}C (1250{degree}F). A subsequent optimization program as shown that tribological properties are further improved by increasing the solid lubricant content. The improved coating is designated as PS212. The same powder formulation has been used to make free-standing powder metallurgy (PM212) parts by sintering or hot isostatic pressing. The process is very attractive for making parts that cannot be readily plasma sprayed such as bushings and cylinders that have small bore diameters and/or high length to diameter ratios. The properties of coatings and free-standing parts fabricated from these powders are reviewed. 6 refs., 14 figs., 1 tab.

Sliney, H.E.

1990-01-01T23:59:59.000Z

89

Trade-off between computation time and Hamiltonian degree in adiabatic graph-state quantum computation  

E-Print Network (OSTI)

Measurement-based quantum computation (MBQC) and adiabatic quantum computation (AQC) are two very different computational methods. While in MBQC computation is driven by adaptive measurements on a large entangled state, in AQC it is the adiabatic transition to a ground state holding the solution to the problem which results in computation. In this paper we combine MBQC on graph states with AQC and investigate how properties, such as computational depth, energy gap and Hamiltonian degree, translate into each other. Following an approach proposed by Bacon and Flammia, we show that any measurement-based quantum computation on a graph state with gflow can be converted into an adiabatic computation, which we call adiabatic graph-state quantum computation (AGQC). We then identify how a trade-off can be made between computational depth and Hamiltonian degree, and clarify the effects of out-of-order measurements in the adiabatic computation. In the extreme case, we present a translation to AGQC where all computations can be carried out in constant time, at the expense of having high degree starting Hamiltonian. This leads to a natural conjecture for a lower bound on the cost of simulating large degree operators using smaller degree operators.

Bobby Antonio; Damian Markham; Janet Anders

2013-09-05T23:59:59.000Z

90

Microsoft Word - Blurbs for Nik.doc  

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

NFPA Chemical Labeling System NFPA Chemical Labeling System The NFPA diamond is a coded symbol which combines both color and numerical rating (0-4) to indicate the degree of hazard associated with the substance. Blue = Health Red = Flammability Yellow = Reactivity White = Other Flammability (flash points) Health 0 = Will not burn 0 = Normal Material 1 = above 200 degrees Fahrenheit 1 = Slight Hazard 2 = Between 100-200 degrees Fahrenheit 2 = Moderately Hazardous 3 = Below 100 degrees Fahrenheit 3 = Extremely Hazardous 4 = Flash point below 73 degrees Fahrenheit 4 = Deadly Reactivity Specific Hazard 0 = Stable ACID-acid 1 = Unstable if heated ALK-alkali 2 = Violent chemical change COR-corrosive 3 = Shock or heat may detonate OX-oxidizer

91

Chaotic Dynamics of N-degree of Freedom Hamiltonian Systems  

E-Print Network (OSTI)

We investigate the connection between local and global dynamics of two N-degree of freedom Hamiltonian systems with different origins describing one-dimensional nonlinear lattices: The Fermi-Pasta-Ulam (FPU) model and a discretized version of the nonlinear Schrodinger equation related to Bose-Einstein Condensation (BEC). We study solutions starting in the vicinity of simple periodic orbits (SPOs) representing in-phase (IPM) and out-of-phase motion (OPM), which are known in closed form and whose linear stability can be analyzed exactly. Our results verify that as the energy E increases for fixed N, beyond the destabilization threshold of these orbits, all positive Lyapunov exponents exhibit a transition between two power laws, occurring at the same value of E. The destabilization energy E_c per particle goes to zero as N goes to infinity following a simple power-law. However, using SALI, a very efficient indicator we have recently introduced for distinguishing order from chaos, we find that the two Hamiltonians have very different dynamics near their stable SPOs: For example, in the case of the FPU system, as the energy increases for fixed N, the islands of stability around the OPM decrease in size, the orbit destabilizes through period-doubling bifurcation and its eigenvalues move steadily away from -1, while for the BEC model the OPM has islands around it which grow in size before it bifurcates through symmetry breaking, while its real eigenvalues return to +1 at very high energies. Still, when calculating Lyapunov spectra, we find for the OPMs of both Hamiltonians that the Lyapunov exponents decrease following an exponential law and yield extensive Kolmogorov--Sinai entropies per particle, in the thermodynamic limit of fixed energy density E/N with E and N arbitrarily large.

Chris Antonopoulos; Tassos Bountis; Charalampos Skokos

2005-06-20T23:59:59.000Z

92

Degree Distribution in Quantum Walks on Complex Networks  

E-Print Network (OSTI)

In this theoretical study, we analyze quantum walks on complex networks, which model network-based processes ranging from quantum computing to biology and even sociology. Specifically, we analytically relate the average long time probability distribution for the location of a unitary quantum walker to that of a corresponding classical walker. The distribution of the classical walker is proportional to the distribution of degrees, which measures the connectivity of the network nodes and underlies many methods for analyzing classical networks including website ranking. The quantum distribution becomes exactly equal to the classical distribution when the walk has zero energy and at higher energies the difference, the so-called quantumness, is bounded by the energy of the initial state. We give an example for which the quantumness equals a Renyi entropy of the normalized weighted degrees, guiding us to regimes for which the classical degree-dependent result is recovered and others for which quantum effects dominate.

Mauro Faccin; Tomi Johnson; Jacob Biamonte; Sabre Kais; Piotr Migda?

2013-05-27T23:59:59.000Z

93

Degree of Polarization at Simultaneous Transmit: Theoretical Aspects  

Science Conference Proceedings (OSTI)

We consider weather radar measurements at simultaneous transmission and simultaneous reception of horizontal and vertical polarizations and show that the degree of polarization at simultaneous transmit (p{sub s}) is related to differential reflectivity and copolar correlation coefficient at simultaneous transmit (namely, Z{sub DR}s and {rho}{sub hy}s). We evaluate the potential of degree of polarization at simultaneous transmit for weather radar applications. Ultimately, we explore the consequences of adjusting the transmit polarization state of dual-polarization weather radars to circular polarization.

Galletti M.; Zrnic, D. S.

2012-05-01T23:59:59.000Z

94

Word Pro - Untitled1  

U.S. Energy Information Administration (EIA) Indexed Site

6 Solar Thermal Collector Shipments by Type, Price, and Trade 6 Solar Thermal Collector Shipments by Type, Price, and Trade Total Shipments, 1974-2009 Trade, 1978-2009 Price of Total Shipments, 1986-2009 Number of U.S. Manufacturers by Type of Collector, 1974-2009 Average Annual Shipments per Manufacturer, 1974-2009 292 U.S. Energy Information Administration / Annual Energy Review 2011 1 Prices are not adjusted for inflation. See "Nominal Dollars" in Glossary. 2 Collectors that generally operate in the temperature range of 140 degrees Fahrenheit to 180 degrees Fahrenheit but can also operate at temperatures as low as 110 degrees Fahrenheit. Special collectors-evacuated tube collectors or concentrating (focusing) collectors-are included in the medium-temperature category. 3 Collectors that generally operate at temperatures below 110 degrees Fahrenheit.

95

DOE Provides up to $51.8 Million to Modernize the U.S. Electric...  

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

-320 to -370 degrees Fahrenheit (50 to 77 Kelvin), and in magnetic fields from 1 to 4 Tesla. DOE's Office of Electricity Delivery and Energy Reliability (OE) will oversee the...

96

Energy Information Administration/Natural Gas Monthly June 2012...  

Annual Energy Outlook 2012 (EIA)

on quantities of gas in storage and on storage capacity represent, in part, reservoir engineering evaluations. All volumes are reported at 14.73 psia and 60 degrees Fahrenheit....

97

Glossary - U.S. Energy Information Administration (EIA)  

U.S. Energy Information Administration (EIA)

R-value: A measure of a material's resistance to heat flow in units of Fahrenheit degrees x hours x square feet per Btu. The higher the R-value of a material, the ...

98

Degree centrality for semantic abstraction summarization of therapeutic studies  

Science Conference Proceedings (OSTI)

Automatic summarization has been proposed to help manage the results of biomedical information retrieval systems. Semantic MEDLINE, for example, summarizes semantic predications representing assertions in MEDLINE citations. Results are presented as a ... Keywords: Automatic summarization, Degree centrality, Disease treatment, Graph theory, Natural language processing, Semantic processing

Han Zhang; Marcelo Fiszman; Dongwook Shin; Christopher M. Miller; Graciela Rosemblat; Thomas C. Rindflesch

2011-10-01T23:59:59.000Z

99

Commissioning of the CMS zero degree calorimeter using LHC beam  

E-Print Network (OSTI)

This paper reports on the commissioning and first running experience of the CMS Zero Degree Calorimeters during December 2009. All channels worked correctly. The ZDCs were timed into the data acquisition system using beam splash events. These data also allowed us to make a first estimate of channel-by-channel variations in gain.

O. Grachov; M. Murray; J. Wood; Y. Onel; S. Sen; T. Yetkin

2010-08-06T23:59:59.000Z

100

Estimated Seasonal Cycle of North Atlantic Eighteen Degree Water Volume  

Science Conference Proceedings (OSTI)

The seasonal cycle in the volume and formation rate of Eighteen Degree Water (EDW) in the North Atlantic is quantified over the 3-yr period from 2004 to 2006. The EDW layer is defined as all waters that have a temperature between 17° and 19°C. ...

Gaël Forget; Guillaume Maze; Martha Buckley; John Marshall

2011-02-01T23:59:59.000Z

Note: This page contains sample records for the topic "degrees fahrenheit high" 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

A cumulative belief-degree approach for nuclear safeguards evaluation  

Science Conference Proceedings (OSTI)

Nuclear safeguards are a set of activities to verify that a State is living up to its international undertakings not to use nuclear programs for nuclear weapons purposes. International Atomic Energy Agency (IAEA) uses a hierarchical assessment system ... Keywords: cumulative belif degree, decision making, fuzzy linguistic terms, nuclear safeguards

Özgür Kabak; Da Ruan

2009-10-01T23:59:59.000Z

102

Joint Degree Program in Social Work and Law  

E-Print Network (OSTI)

Joint Degree Program in Social Work and Law MSW and JD The complexity of current national debates and programs, and social work advocacy activities, including clinical practice, and the law. It is therefore work to remain in good standing and for graduation, the MSW Program follows the Graduate School

Peterson, Blake R.

103

An Assessment Model on Green Degree of Biodegradable Packaging Materials  

Science Conference Proceedings (OSTI)

An assessment model of green degree of biodegradable packaging materials is built. The first-order assessment indexes are composed of environmental properties, energy properties, resource properties and economy and the second order assessment index are ... Keywords: packaging materials, analytic hierarchy process, life cycle assessment

Xiaoming Zuo; Zhaomei Xu

2010-03-01T23:59:59.000Z

104

Thermal disconnect for high-temperature batteries  

DOE Patents (OSTI)

A new type of high temperature thermal disconnect has been developed to protect electrical and mechanical equipment from damage caused by operation at extreme temperatures. These thermal disconnects allow continuous operation at temperatures ranging from 250.degree. C. to 450.degree. C., while rapidly terminating operation at temperatures 50.degree. C. to 150.degree. C. higher than the continuous operating temperature.

Jungst, Rudolph George (Albuquerque, NM); Armijo, James Rudolph (Albuquerque, NM); Frear, Darrel Richard (Austin, TX)

2000-01-01T23:59:59.000Z

105

ORISE: Nuclear engineering degrees at highest ranges since 1980s  

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

ORISE report shows graduation, enrollment rates for nuclear engineering ORISE report shows graduation, enrollment rates for nuclear engineering candidates are still at highest ranges reported since 1980s Report also shows shifts in career opportunities beyond graduation in nuclear utilities FOR IMMEDIATE RELEASE Nov. 2, 2011 FY12-04 OAK RIDGE, Tenn.-After a one-year decline, the number of graduate and undergraduate nuclear engineering degrees earned in the United States bounced back in 2010. A recent report from the Oak Ridge Institute for Science and Education shows enrollments of both undergraduate and graduate nuclear engineering students are still in the highest ranges reported since the early 1980s. Despite the continued growth trend in enrollments and degrees, the report also revealed that the reported plans of graduates show fewer had plans to

106

METHOD FOR SENSING DEGREE OF FLUIDIZATION IN FLUIDIZED BED  

DOE Patents (OSTI)

A method is given for detecting, indicating, and controlling the degree of fluidization in a fluid-bed reactor into which powdered material is fed. The method comprises admitting of gas into the reactor, inserting a springsupported rod into the powder bed of the reactor, exciting the rod to vibrate at its resonant frequency, deriving a signal responsive to the amplitude of vibi-ation of the rod and spring, the signal being directiy proportional to the rate of flow of the gas through the reactor, displaying the signal to provide an indication of the degree of fluidization within the reactor, and controlling the rate of gas flow into the reactor until said signal stabilizes at a constant value to provide substantially complete fluidization within the reactor. (AEC)

Levey, R.P. Jr.; Fowler, A.H.

1961-12-12T23:59:59.000Z

107

Degree-distribution stability of scale-free networks  

E-Print Network (OSTI)

Based on the concept and techniques of first-passage probability in Markov chain theory, this letter provides a rigorous proof for the existence of the steady-state degree distribution of the scale-free network generated by the Barabasi-Albert (BA) model, and mathematically re-derives the exact analytic formulas of the distribution. The approach developed here is quite general, applicable to many other scale-free types of complex networks.

Zhenting Hou; Xiangxing Kong; Dinghua Shi; Guanrong Chen

2008-05-09T23:59:59.000Z

108

EA-1733: Final Environmental Assessment | Department of Energy  

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

733: Final Environmental Assessment 733: Final Environmental Assessment EA-1733: Final Environmental Assessment Calpine Enhanced Geothermal Systems Project The proposed EGS project includes the injection of water, ranging from 50 to 80 degrees Fahrenheit, into wells to enhance the permeability of an existing high temperature hydrothermal reservoir that would be harnessed to produce electrical energy. The purpose of the project is to demonstrate the ability to stimulate high temperature rocks by monitoring their early response to carefully designed injection tests. The project would be a collaborative effort between scientists and engineers of Calpine Corporation, Lawrence Berkeley National Laboratory (LBNL), and the DOE. Calpine Enhanced Geothermal Systems Project, DOE/EA-1733 (June 2010)

109

A rigid cone in the truth-table degrees with jump  

E-Print Network (OSTI)

The automorphism group of the truth-table degrees with order and jump is fixed on the set of degrees above the fourth jump of 0.

Kjos-Hanssen, Bjørn

2009-01-01T23:59:59.000Z

110

Improved Complexity Bound of Vertex Cover for Low degree Graph  

E-Print Network (OSTI)

In this paper, we use a new method to decrease the parameterized complexity bound for finding the minimum vertex cover of connected max-degree-3 undirected graphs. The key operation of this method is reduction of the size of a particular subset of edges which we introduce in this paper and is called as "real-cycle" subset. Using "real-cycle" reductions alone we compute a complexity bound $O(1.15855^k)$ where $k$ is size of the optimal vertex cover. Combined with other techniques, the complexity bound can be further improved to be $O(1.1504^k)$. This is currently the best complexity bound.

Yue, Weiya; Cao, Weiwei

2010-01-01T23:59:59.000Z

111

90-Degree Bragg Reflection from a Thin Crystalline Film  

SciTech Connect

Experimental observations of synchrotron radiation diffraction from a thin surface layer at a 90-degree Bragg reflection are reported and discussed. The synchrotron experiments were performed using a bending magnet source at the European Synchrotron Radiation Facility (ESRF) in France and undulator sources at the Advanced Photon Source (APS) in the U.S. and SPring-8 in Japan. Thin (0.5, 1.0 and 1.5 micron) InGaAs films deposited on a GaAs (100) substrate were studied near the 90- degree using the GaAs (800) reflection. A slight, less than 0.1%, difference in the lattice spacing between the layer and the substrate is sufficient to allow a direct and exclusive observation of the diffraction profile from a thin layer as if it was a 'free-standing' thin crystal. This research opens new possibilities for x-ray optical schemes and the development of novel analytical techniques for surface/interface x-ray diffraction studies.

Nikulin, A.Y.; Davis, J.R.; Usher, B.F.; Freund, A.K.; Ishikawa, T.

2001-09-11T23:59:59.000Z

112

Designing fault-tolerant manipulators: How many degrees of freedom?  

SciTech Connect

One of the most important parameters to consider when designing a manipulator is the number of degrees of freedom (DOFs). This article focuses on the question: How many DOFs are necessary and sufficient for fault tolerance, and how should these DOFs be distributed along the length of the manipulator? A manipulator is fault tolerant if it can complete its task even when one of its joints fails and is immobilized. The number of DOFs needed for fault tolerance strongly depends on the knowledge available about the task. In this article, two approaches are explored. First, for the design of a general purpose fault-tolerant manipulator, it is assumed that neither the exact task trajectory nor the redundancy resolution algorithm are known a priori and the manipulator has no joint limits. In this case, two redundant DOFs are necessary and sufficient to sustain one joint failure, as is demonstrated in two design templates for spatial fault-tolerant manipulators. In this second approach, both the Cartesian task path and the redundancy resolution algorithm are assumed to be known. The design of such a task-specific fault-tolerant manipulator requires only one degree of redundancy. 22 refs., 11 figs., 2 tabs.

Paredis, C.J.J.; Khosla, P.K. [Carnegie Mellon Univ., Pittsburgh, PA (United States)

1996-12-01T23:59:59.000Z

113

DC powerline communication system using a transmission line transformer for high degree of freedom applications  

E-Print Network (OSTI)

A new type of powerline communication is developed to reduce cable requirements for robotic, electromechanical, and vehicular systems. A DC power bus line connecting a DC power supply to motor drives and sensor units is ...

Wade, Eric R. (Eric Randolph), 1978-

2004-01-01T23:59:59.000Z

114

A 14.6 billion degrees of freedom, 5 teraflops, 2.5 terabyte earthquake simulation on the Earth Simulator  

Science Conference Proceedings (OSTI)

We use 1944 processors of the Earth Simulator to model seismic wave propagation resulting from large earthquakes. Simulations are conducted based upon the spectral-element method, a high-degree finite-element technique with an exactly diagonal mass matrix. ...

Dimitri Komatitsch; Seiji Tsuboi; Chen Ji; Jeroen Tromp

2003-11-01T23:59:59.000Z

115

On the RMS Anisotropy at 7 degrees and 10 degrees Observed in the COBE-DMR Two Year Sky Maps  

E-Print Network (OSTI)

The frequency-independent RMS temperature fluctuations determined from the COBE-DMR two year sky maps are used to infer the parameter Q_{rms-PS}, which characterizes the normalization of power law models of primordial cosmological temperature anisotropy. In particular, a 'cross'-RMS statistic is used to determine Q_{rms-PS} for a forced fit to a scale-invariant Harrison-Zel'dovich (n = 1) spectral model. Using a joint analysis of the 7 degree and 10 degree RMS temperature derived from both the 53 and 90 GHz sky maps, we find Q_{rms-PS} = 17.0^{+2.5}_{-2.1} uK when the low quadrupole is included, and Q_{rms-PS} = 19.4^{+2.3}_{-2.1} uK excluding the quadrupole. These results are consistent with the n = 1 fits from more sensitive methods (e.g. power spectrum, correlation function). The effect of the low quadrupole derived from the COBE-DMR data on the inferred Q_{rms-PS} normalization is investigated. A bias to lower Q_{rms-PS} is found when the quadrupole is included. The higher normalization for a forced n = 1 fit is then favored by the cross-RMS technique. As initially pointed out in Wright et al. (1994a) and further discussed here, analytic formulae for the RMS sky temperature fluctuations will NOT provide the correct normalization amplitude.

A. J. Banday; K. M. Gorski; L. Tenorio; E. L. Wright; G. F. Smoot; C. H. Lineweaver; A. Kogut; G. Hinshaw; C. L. Bennett

1994-08-30T23:59:59.000Z

116

The search for gluonic degrees of freedom in QCD using the GlueX facility at Jefferson Lab  

Science Conference Proceedings (OSTI)

The search for gluonic degrees of freedom in mesons is an experimental challenge. The most promising approach is to look for mesons with exotic quantum numbers that can not be described by quark degrees of freedom only. The GlueX experiment at Jefferson Lab in Hall-D, currently under construction, will search for such hybrid mesons with exotic quantum numbers by scattering a linearly polarized high energetic photon beam off a liquid hydrogen target. An amplitude analysis will be employed to search for such resonances in the data and determine their quantum numbers.

Benedikt Zihlmann

2011-05-01T23:59:59.000Z

117

Effect of acid-chlorite delignification on cellulose degree of...  

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

Ser- vices 350 sputter coater. SEM images were acquired via a Hit- achi-3400SN scanning electron microscope from Hitachi High Technologies American, Inc. (Pleasanton, CA, USA) at...

118

Number of degrees of freedom of two-dimensional turbulence  

E-Print Network (OSTI)

We derive upper bounds for the number of degrees of freedom of two-dimensional Navier--Stokes turbulence freely decaying from a smooth initial vorticity field $\\omega(x,y,0)=\\omega_0$. This number, denoted by $N$, is defined as the minimum dimension such that for $n\\ge N$, arbitrary $n$-dimensional balls in phase space centred on the solution trajectory $\\omega(x,y,t)$, for $t>0$, contract under the dynamics of the system linearized about $\\omega(x,y,t)$. In other words, $N$ is the minimum number of greatest Lyapunov exponents whose sum becomes negative. It is found that $N\\le C_1R_e$ when the phase space is endowed with the energy norm, and $N\\le C_2R_e(1+\\ln R_e)^{1/3}$ when the phase space is endowed with the enstrophy norm. Here $C_1$ and $C_2$ are constant and $R_e$ is the Reynolds number defined in terms of $\\omega_0$, the system length scale, and the viscosity $\

Chuong V. Tran; Luke Blackbourn

2009-04-20T23:59:59.000Z

119

Preliminary analysis of tank 241-C-106 dryout due to large postulated leak and vaporization  

SciTech Connect

This analysis assumes that there is a hypothetical large leak at the bottom of Tank 241-C-106 which initiates the dryout of the tank. The time required for a tank to dryout after a leak is of interest for safety reasons. As a tank dries out, its temperature is expected to increase which could affect the structural integrity of the concrete tank dome. Hence, it is of interest to know how fast and how high the temperature in a leaky tank increases, so that mitigation procedures can be planned and implemented in a timely manner. This analysis is focused on tank 241-C-106, which is known to be high thermal tank. The objective of the study was to determine how long it would take for tank 241-C-106 to reach 350 degrees Fahrenheit (about 177 degrees Centigrade) after a postulated large leak develops at the bottom center of the tank. The temperature of 350 degrees Fahrenheit is the minimum temperature that can cause structural damage to concrete (ACI 1992). The postulated leak at the bottom of the tank and the resulting dryout of the sludge in the tank make this analysis different from previous thermal analyses of the C-106 tank and other tanks, especially the double-shell tanks which are mostly liquid.

Piepho, M.G.

1994-12-01T23:59:59.000Z

120

Nuclear engineering enrollments decreased 9 percent overall in 1994; undergraduate degrees increased, while master`s and doctoral degrees decreased. No. 30  

SciTech Connect

The survey of ``Nuclear Engineering Enrollments and Degrees, 1994`` was sent to 51 institutions offering a major in nuclear engineering. Results of the survey are given.

1995-05-01T23:59:59.000Z

Note: This page contains sample records for the topic "degrees fahrenheit high" 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

Study for Influence of Prereduction Degrees on the Softening and ...  

Science Conference Proceedings (OSTI)

Chemical Enrichment of Precious Metals in Iron Sulfides Using Microwave Energy · Chloridizing ... Co-Gasification Behavior of Metallurgical Coke with High and Low Reactivity .... Thermal Plasma Torches for Metallurgical Applications.

122

Shape control of manipulators with hyper degrees of freedom  

Science Conference Proceedings (OSTI)

This paper provides a theoretical framework for controlling a manipulator with hyper degrees of freedom (HDOF) . An HDOF manipulator has the capability to achieve various kinds of tasks. To make full use of its capability, shape control is proposed here; that is, not only the tip of a manipulator, but also its whole body is controlled. To formulate control objectives for shape control, the authors define a shape correspondence between an HDOF manipulator and a spatial curve that prescribes a desired shape. The shape correspondence is defined by using solutions of a nonlinear optimization problem termed the shape-inverse problem. They give theorems on the existence of the solutions, and on an existence region that allows them to convert shape-control problems into more tractable ones. A shape-regulation control problem is considered first to bring an HDOF manipulator onto a given time-invariant curve. The idea of estimating the desired curve parameters is the crucial key to solving the problem by Lyapunov design. The derived shape-regulation law includes the estimator, which infers the desired curve parameters corresponding to the desired joint positions on the curve. The idea of the desired curve-parameter estimation is also effective for shape tracking where a time-varying curve is used for prescribing a moving desired shape. Considering an estimator with second-order dynamics enables the authors to find two shape-tracking control laws by utilizing conventional tracking methods in manipulator control. They show the simulation results of applying the derived shape-tracking control laws to a 20-DOF manipulator.

Mochiyama, Hiromi; Shimemura, Etsujiro [Japan Advanced Inst. of Science and Technology Hokuriku, Ishikawa (Japan). School of Information Science] [Japan Advanced Inst. of Science and Technology Hokuriku, Ishikawa (Japan). School of Information Science; Kobayashi, Hisato [Hosei Univ., Koganei, Tokyo (Japan). Dept. of Electrical and Electronic Engineering] [Hosei Univ., Koganei, Tokyo (Japan). Dept. of Electrical and Electronic Engineering

1999-06-01T23:59:59.000Z

123

Polar studies of the sphericity degree of V/HTR nuclear fuel particles  

SciTech Connect

Advanced nuclear power reactor designs such as (Very) High Temperature Reactors (V/HTR) employ TRISO fuel particles that typically have a sub-millimetre U-based fuel kernel coated with three isotropic ceramic layers-a layer of silicon carbide sandwiched between pyrocarbon layers of different density. Evaluation of the ceramic layer thickness and of the degree of sphericity of these typical nuclear fuel particles is required at each step of the fabrication, in order to estimate future fuel performance under irradiation conditions. This study is based on the image processing of polished cross-sections, realized near the equatorial plane. From these 2D images, some measurements are carried out, giving an estimation of the diameter values for a sample of particles at each step of the coating process. These values are then statistically extended to the third dimension in order to obtain the thickness of each layer and the degree of sphericity of each particle. A representation of diameter and layer thickness in polar coordinates enables one to identify steps for which the coating process is defective or deviating from nominal objectives.

Robert-Inacio, F. [Institut Superieur de l'Electronique et du Numerique de Toulon, L2MP UMR CNRS 6137, place Pompidou, F-83000 Toulon (France)]. E-mail: frederique.robert@isen.fr; Boschet, C. [Institut Superieur de l'Electronique et du Numerique de Toulon, L2MP UMR CNRS 6137, place Pompidou, F-83000 Toulon (France); Charollais, F. [CEA Cadarache, DEN/CAD/DEC/SPUA, Bat. 315, BP1, 13108 Saint Paul lez Durance (France)]. E-mail: francois.charollais@cea.fr; Cellier, F. [Framatome ANP, an AREVA and Siemens Company, Plants Sector, 10, rue Juliette Recamier, 69456 Lyon Cedex 06 (France)

2006-06-15T23:59:59.000Z

124

EXOPLANETS FROM THE ARCTIC: THE FIRST WIDE-FIELD SURVEY AT 80 Degree-Sign N  

SciTech Connect

Located within 10 Degree-Sign of the North Pole, northern Ellesmere Island offers continuous darkness in the winter months. This capability can greatly enhance the detection efficiency of planetary transit surveys and other time domain astronomy programs. We deployed two wide-field cameras at 80 Degree-Sign N, near Eureka, Nunavut, for a 152 hr observing campaign in 2012 February. The 16 megapixel camera systems were based on commercial f/1.2 lenses with 70 mm and 42 mm apertures, and they continuously imaged 504 and 1295 deg{sup 2}, respectively. In total, the cameras took over 44,000 images and produced better than 1% precision light curves for approximately 10,000 stars. We describe a new high-speed astrometric and photometric data reduction pipeline designed for the systems, test several methods for the precision flat fielding of images from very-wide-angle cameras, and evaluate the cameras' image qualities. We achieved a scintillation-limited photometric precision of 1%-2% in each 10 s exposure. Binning the short exposures into 10 minute chunks provided a photometric stability of 2-3 mmag, sufficient for the detection of transiting exoplanets around the bright stars targeted by our survey. We estimate that the cameras, when operated over the full Arctic winter, will be capable of discovering several transiting exoplanets around bright (m{sub V} < 9.5) stars.

Law, Nicholas M.; Sivanandam, Suresh [Dunlap Institute for Astronomy and Astrophysics, University of Toronto, 50 St. George Street, Toronto, Ontario M5S 3H4 (Canada); Carlberg, Raymond; Salbi, Pegah; Ngan, Wai-Hin Wayne; Kerzendorf, Wolfgang [Department of Astronomy and Astrophysics, University of Toronto, 50 St. George Street, Toronto, Ontario M5S 3H4 (Canada); Ahmadi, Aida [University of Calgary, 2500 University Drive NW, Calgary, Alberta T2N 1N4 (Canada); Steinbring, Eric; Murowinski, Richard, E-mail: law@di.utoronto.ca [National Science Infrastructure, National Research Council Canada, Victoria, British Columbia, V9E 2E7 (Canada)

2013-03-15T23:59:59.000Z

125

ac and dc current-induced motion of a 360 degrees domain wall  

E-Print Network (OSTI)

he response of 360° [360 degrees]domain walls in narrow magnetic stripes to applied dc and ac currents, investigated by micromagnetic simulation, differs qualitatively from the response of 180° [180 degrees] domain walls. ...

Mascaro, Mark D.

126

The estimation of base temperature for heating and cooling degree days for Korea  

Science Conference Proceedings (OSTI)

In Korea, heating degree days (HDD) and cooling degree days (CDD) have been widely used as climatic indicators for the assessment of the impact of climate change, but arbitrary or customary base temperatures have been used for calculation of HDD ...

Kyoungmi Lee; Hee-Jeong Baek; ChunHo Cho

127

Research of sludge compost maturity degree modeling method based on wavelet neural network for sewage treatment  

Science Conference Proceedings (OSTI)

Because of the complicated interaction of the sludge compost components, it makes the compost maturity degree judging system appear the nonlinearity and uncertainty. According to the physical circumstances of sludge compost, a compost maturity degree ...

Meijuan Gao; Jingwen Tian; Wei Jiang; Kai Li

2007-09-01T23:59:59.000Z

128

Table 1.9 Heating Degree-Days by Census Division  

U.S. Energy Information Administration (EIA)

Normala 2012 2013 Percent Change Normala 2012 2013 ... F would report 25 heating degree-days for that day ... • See ...

129

Brief 71 Health Physics Enrollments and Degrees, 2011 Summary (11-12  

SciTech Connect

The survey includes degrees granted between September 1, 2010 and August 31, 2011. Enrollment information refers to the fall term 2011. The enrollment and degree data include students majoring in health physics or in an option program equivalent to a major. Twenty-four academic programs reported having health physics programs during 2011. The data for two health physics options within nuclear engineering programs are also included in the enrollments and degrees that are reported in the nuclear engineering enrollments and degrees data.

Dr. Don Johnson

2012-11-07T23:59:59.000Z

130

Modeling of Sludge Compost Maturity Degree Based on Radial Basic Function Network for Sewage Treatment  

Science Conference Proceedings (OSTI)

Because of the complicated interaction of the sludge compost components, it makes the compost maturity degree judging system appear the non-linearity and uncertainty. According to the physical circumstances of sludge compost, a compost maturity degree ... Keywords: Compost, Maturity degree, Radial basic function network, Modeling

Jingwen Tian; Meijuan Gao; Yanxia Liu; Shiru Zhou; Fan Zhang

2008-10-01T23:59:59.000Z

131

10-27-09_Final_Testimony_(Chu).pdf  

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

October 27, 2009 October 27, 2009 Chairman Boxer, Ranking Member Inhofe, Members of the Committee, thank you for the opportunity to testify today. When I appeared before you in July, I focused on the energy challenge and the grave threat from climate change. The Intergovernmental Panel on Climate Change found in 2007 that the best estimate for the rise in average global temperature by the end of this century would be more than 7 degrees Fahrenheit if we continued on a high growth, fossil fuel intensive course. A 2009 MIT study found a fifty percent chance of a 9 degree rise in this century and a 17 percent chance of a nearly 11 degree increase. Eleven degrees may not sound like much, but, during the last ice age, when Canada and much of the United States were covered all year in a glacier, the world was only about 11

132

Note: Rotaphone, a new self-calibrated six-degree-of-freedom seismic sensor  

SciTech Connect

We have developed and tested (calibration, linearity, and cross-axis errors) a new six-degree-of-freedom mechanical seismic sensor for collocated measurements of three translational and three rotational ground motion velocity components. The device consists of standard geophones arranged in parallel pairs to detect spatial gradients. The instrument operates in a high-frequency range (above the natural frequency of the geophones, 4.5 Hz). Its theoretical sensitivity limit in this range is 10{sup -9} m/s in ground velocity and 10{sup -9} rad/s in rotation rate. Small size and weight, and easy installation and maintenance make the instrument useful for local-earthquake recording and seismic prospecting.

Brokesova, Johana [Faculty of Mathematics and Physics, Charles University, 180 00 Prague (Czech Republic); Malek, Jiri [Institute of Rock Structure and Mechanics, ASCR, 182 09 Prague (Czech Republic); Evans, John R. [U.S. Geological Survey, Menlo Park, California 94025 (United States)

2012-08-15T23:59:59.000Z

133

High Energy Diffraction Microscopy: Methods, Current ...  

Science Conference Proceedings (OSTI)

High performance computing is used to reconstruct the crystallographic orientation field on the ~2 micron length and 0.1 degree orientation scale.

134

360 Degree Photography to Decrease Exposure, Increase Safety & Minimize Waste  

Science Conference Proceedings (OSTI)

High-resolution digital cameras, in conjunction with software techniques. make possible 360{sup o} photos that allow a person to look all around, up and dawn, and zoom in or out. The software provides the opportunity to attach other information to a 360{sup o} photo such as sound tiles, flat photos (providing additional detail about what is behind a panel or around a corner) and text (Information which can be used to show radiological conditions or identify other hazards not readily visible). The software also allows other 360{sup o} photos to be attached creating a virtual tour where the user can move from area to area, and stop, study and zoom in on areas of interest. A virtual tour of a building or room can be used for facility documentation, informing management and others, work planning and orientation, and training, thus minimizing the need to re-enter hazardous radioactive areas. Reducing entries decreases exposure, increases safety and minimizes waste.

LEBARON, G.J.

2002-01-31T23:59:59.000Z

135

A degree-day method for residential heating load calculations specifically incorporating the utilization of solar gains  

DOE Green Energy (OSTI)

A simple and well known method of estimating residential heating loads is the variable base degree-day method, in which the steady-state heat loss rate (UA) is multiplied by the degree-days based from the balance temperature of the structure. The balance temperature is a function of the UA as well as the average rate of internal heat gains, reflecting the displacement of the heating requirements by these gains. Currently, the heat gains from solar energy are lumped with those from appliances to estimate an average rate over the day. This ignores the effects of the timing of the gains from solar energy, which are more highly concentrated during daytime hours, hence more frequently exceeding the required space heat and less utilizable than the gains from appliances. Simulations or specialized passive solar energy calculation methods have previously been required to account for this effect. This paper presents curves of the fraction of the absorbed solar energy utilized for displacement of space heat, developed by comparing heating loads calculated using a variable base degree-day method (ignoring solar gains) to heating loads from a large number of detailed DOE-2 simulations. The difference in the loads predicted by the two methods can be interpreted as the utilized solar gains. The solar utilization decreases as the thermal integrity increases, as expected, and the solar utilizations are similar across climates. They can be used to estimate the utilized fraction of the absorbed solar energy and, with the load predicted by the variable base degree-day calculation, form a modified degree-day method that closely reproduces the loads predicted by the DOE-2 simulation model and is simple enough for hand calculations. 6 refs., 6 figs., 2 tabs.

Lucas, R.G.; Pratt, R.G.

1990-09-01T23:59:59.000Z

136

Climate: monthly and annual average cooling degree days above 10° C GIS  

Open Energy Info (EERE)

cooling degree days above 10° C GIS cooling degree days above 10° C GIS data at one-degree resolution of the World from NASA/SSE Dataset Summary Description (Abstract): Cooling Degree Days above 10° C (degree days)The monthly accumulation of degrees when the daily mean temperature is above 10° C.NASA Surface meteorology and Solar Energy (SSE) Release 6.0 Data Set (Nov 2007)22-year Monthly Average & Annual Sum (July 1983 - June 2005)Parameter: Cooling Degree Days Above 10 degrees C (degree days)Internet: http://eosweb.larc.nasa.gov/sse/Note 1: SSE Methodology & Accuracy sections onlineNote 2: Lat/Lon values indicate the lower left corner of a 1x1 degree region. Negative values are south and west; positive values are north and east. Boundaries of the -90/-180 region are -90 to -89 (south) and -180 to -179 (west). The last region, 89/180,

137

Climate: monthly and annual average heating degree days below 18° C GIS  

Open Energy Info (EERE)

heating degree days below 18° C GIS heating degree days below 18° C GIS data at one-degree resolution of the World from NASA/SSE Dataset Summary Description (Abstract): Heating Degree Days below 18° C (degree days)The monthly accumulation of degrees when the daily mean temperature is below 18° C.NASA Surface meteorology and Solar Energy (SSE) Release 6.0 Data Set (Nov 2007)22-year Monthly Average & Annual Sum (July 1983 - June 2005)Parameter: Heating Degree Days Below 18 degrees C (degree days)Internet: http://eosweb.larc.nasa.gov/sse/Note 1: SSE Methodology & Accuracy sections onlineNote 2: Lat/Lon values indicate the lower left corner of a 1x1 degree region. Negative values are south and west; positive values are north and east. Boundaries of the -90/-180 region are -90 to -89 (south) and -180 to -179 (west). The last region, 89/180,

138

Solar heavy element abundance: constraints from frequency separation ratios of low-degree p modes  

E-Print Network (OSTI)

We use very precise frequencies of low-degree solar-oscillation modes measured from 4752 days of data collected by the Birmingham Solar-Oscillations Network (BiSON) to derive seismic information on the solar core. We compare these observations to results from a large Monte Carlo simulation of standard solar models, and use the results to constrain the mean molecular weight of the solar core, and the metallicity of the solar convection zone. We find that only a high value of solar metallicity is consistent with the seismic observations. We can determine the mean molecular weight of the solar core to a very high precision, and, dependent on the sequence of Monte Carlo models used, find that the average mean molecular weight in the inner 20% by radius of the Sun ranges from 0.7209 to 0.7231, with uncertainties of less than 0.5% on each value. Our lowest seismic estimate of solar metallicity is Z=0.0187 and our highest is Z=0.0239, with uncertainties in the range of 12--19%. Our results indicate that the discrepancies between solar models constructed with low metallicity and the helioseismic observations extend to the solar core and thus cannot be attributed to deficiencies in the modeling of the solar convection zone.

William J. Chaplin; Aldo M. Serenelli; Sarbani Basu; Yvonne Elsworth; Roger New; Graham A. Verner

2007-05-22T23:59:59.000Z

139

cooling degree-days - U.S. Energy Information Administration (EIA)  

U.S. Energy Information Administration (EIA)

Alternative Fuels. Includes hydropower, solar, wind, geothermal, biomass and ethanol. ... Cooling degree-days. There are no record(s) that match your search criteria.

140

The solubility of hydrogen in plutonium in the temperature range 475 to 825 degrees centigrade  

DOE Green Energy (OSTI)

The solubility of hydrogen (H) in plutonium metal (Pu) was measured in the temperature range of 475 to 825{degree}C for unalloyed Pu (UA) and in the temperature range of 475 to 625{degree}C for Pu containing two-weight-percent gallium (TWP). For TWP metal, in the temperature range 475 to 600{degree}C, the saturated solution has a maximum hydrogen to plutonium ration (H/Pu) of 0.00998 and the standard enthalpy of formation ({Delta}H{degree}{sub f(s)}) is (-0.128 {plus minus} 0.0123) kcal/mol. The phase boundary of the solid solution in equilibrium with plutonium dihydride (PuH{sub 2}) is temperature independent. In the temperature range 475 to 625{degree}C, UA metal has a maximum solubility at H/Pu = 0.011. The phase boundary between the solid solution region and the metal+PuH{sub 2} two-phase region is temperature dependent. The solubility of hydrogen in UA metal was also measured in the temperature range 650 to 825{degree}C with {Delta}H{degree}{sub f(s)} = (-0.104 {plus minus} 0.0143) kcal/mol and {Delta}S{degree}{sub f(s)} = 0. The phase boundary is temperature dependent and the maximum hydrogen solubility has H/Pu = 0.0674 at 825{degree}C. 52 refs., 28 figs., 9 tabs.

Allen, T.H.

1991-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "degrees fahrenheit high" 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

Department of Energy manpower assessment brief Number 46: Nuclear engineering enrollments and degrees  

SciTech Connect

Based on a survey of 42 institutions, nuclear engineering enrollments and degrees decreased overall in 1999, continuing a steady decline of several years.

2000-04-30T23:59:59.000Z

142

Feedback improves the generalized degrees of freedom of the strong interference channel  

E-Print Network (OSTI)

wireless net- works within o(log(snr)) - the impact of relays, feedback, co- operation andoperation on the generalized degrees of freedom of interference and other wireless

Cadambe, Viveck R; Jafar, Syed A

2008-01-01T23:59:59.000Z

143

High temperature furnace  

DOE Patents (OSTI)

A high temperature furnace for use above 2000.degree.C is provided that features fast initial heating and low power consumption at the operating temperature. The cathode is initially heated by joule heating followed by electron emission heating at the operating temperature. The cathode is designed for routine large temperature excursions without being subjected to high thermal stresses. A further characteristic of the device is the elimination of any ceramic components from the high temperature zone of the furnace.

Borkowski, Casimer J. (Oak Ridge, TN)

1976-08-03T23:59:59.000Z

144

Susceptibility of Granite Rock to scCO2/Water at 200 degrees C and 250 degrees C  

DOE Green Energy (OSTI)

Granite rock comprising anorthoclase-type albite and quartz as its major phases and biotite mica as the minor one was exposed to supercritical carbon dioxide (scCO{sub 2})/water at 250 C and 13.78 MPa pressure for 104 hours. For comparison purpose, four other rocks, albite, hornblende, diorite, and quartz, also were exposed. During the exposure of granite, ionic carbonic acid, known as the wet carbonation reactant, preferentially reacted with anorthoclase-type albite and biotite, rather than with quartz. The susceptibility of biotite to wet carbonation was higher than that of anorthoclase-type albite. All the carbonation by-products of anorthoclase-type albite were amorphous phases including Na- and K-carbonates, a kaolinite clay-like compound, and silicon dioxide, while wet carbonation converted biotite into potassium aluminum silicate, siderite, and magnesite in crystalline phases and hydrogen fluoride (HF). Three of these reaction by-products, Na- and K-carbonates and HF, were highly soluble in water. Correspondingly, the carbonated top surface layer, about 1.27 mm thick as carbonation depth, developed porous microstructure with numerous large voids, some of which have a size of {>=} 10 {mu}m, reflecting the erosion of granite by the leaching of these water-soluble reaction by-products. Comparing with this carbonation depth, its depth of other minerals was considerable lower, particularly, for hornblende and diorite with 0.07 and 0.02 mm, while no carbonate compound was detected in quartz. The major factor governing these low carbonation depths in these rocks was the formation of water-insensitive scale-like carbonate by-products such as calcite (CaCO{sub 3}), siderite (FeCO{sub 3}), and magnesite (MgCO{sub 3}). Their formation within the superficial layer of these minerals served as protective barrier layer that inhibits and retards further carbonation of fresh underlying minerals, even if the exposure time was extended. Thus, the coverage by this barrier layer of the non-carbonated surfaces of the underlying rock was reason why the hornblende and diorite exhibited a minimum depth of carbonation. Under exposure to the scCO{sub 2}/water at 200 C and 10.34 MPa pressure for up to 42 days, the ranking of the magnitude of erosion caused by wet carbonation was in the following order; granite > albite > hornblende > diorite > quartz. The eroding-caused weight loss of granite (0.88 %) was {approx}2.4, {approx}5.2, {approx}9.8, and {approx}17.6 times greater than that of albite, hornblends, diorite, and quartz, respectively.

Sugama, T.; Gill, S., Ecker, L., Butcher, T., Warren, J.

2011-01-01T23:59:59.000Z

145

Pre-medical Studies Division of Biomedical and Life Sciences Degree Schemes  

E-Print Network (OSTI)

Pre-medical Studies A900 Division of Biomedical and Life Sciences Degree Schemes Our Pre-medical Studies course provides an opportunity for entry into medical education for individuals with non to enter year 1 of the Liverpool University MBChB medical degree studying at Lancaster or Liverpool

Meju, Max

146

Cleaning random d-regular graphs with brushes using a degree-greedy algorithm  

Science Conference Proceedings (OSTI)

In the recently introduced model for cleaning a graph with brushes, we use a degree-greedy algorithm to clean a random d-regular graph on n vertices (with dn even). We then use a differential equations method to find the (asymptotic) ... Keywords: cleaning process, degree--greedy algorithm, differential equations method, random d-regular graphs

Margaret-Ellen Messinger; Pawe? Pra?at; Richard J. Nowakowski; Nicholas Wormald

2007-08-01T23:59:59.000Z

147

Directional Stress Indices and Stress Intensification Factors for 90 Degree Elbows (PWRMRP-06)  

Science Conference Proceedings (OSTI)

This report provides equations, based on analyses and test data, for determining the directional stress indices and stress intensification factors (SIFs) for 90 degree elbows. Present methodologies used to determine these parameters are generally overly conservative. The report contains results of an investigation into the stress intensification factors and directional stress indices of 90 degree elbows.

1999-12-22T23:59:59.000Z

148

Study in Indonesia and gain credit towards your degree! Unleash your creativity...  

E-Print Network (OSTI)

Study in Indonesia and gain credit towards your degree! Unleash your creativity... Spend a semester at Indonesia's premiere institution for visual and performing arts... StudytheArtsinIndonesia Study in Indonesia and gain credit towards your degree! ACICIS #12;w w w . a c i c i s . m u r d o c h . e d u . a u

149

Quantum Field Theory Is Not Merely Quantum Mechanics Applied to Low Energy Effective Degrees of Freedom  

E-Print Network (OSTI)

It is commonly assumed that quantum field theory arises by applying ordinary quantum mechanics to the low energy effective degrees of freedom of a more fundamental theory defined at ultra-high-energy/short-wavelength scales. We shall argue here that, even for free quantum fields, there are holistic aspects of quantum field theory that cannot be properly understood in this manner. Specifically, the ``subtractions'' needed to define nonlinear polynomial functions of a free quantum field in curved spacetime are quite simple and natural from the quantum field theoretic point of view, but are at best extremely ad hoc and unnatural if viewed as independent renormalizations of individual modes of the field. We illustrate this point by contrasting the analysis of the Casimir effect, the renormalization of the stress-energy tensor in time-dependent spacetimes, and anomalies from the point of quantum field theory and from the point of view of quantum mechanics applied to the independent low energy modes of the field. Some implications for the cosmological constant problem are discussed.

Stefan Hollands; Robert M. Wald

2004-05-16T23:59:59.000Z

150

Six-Degree-of-Freedom Sensor Fish Design: Governing Equations and Motion Modeling  

DOE Green Energy (OSTI)

The Sensor Fish device is being used at Northwest hydropower projects to better understand the conditions fish experience during passage through hydroturbines and other dam bypass alternatives. Since its initial development in 1997, the Sensor Fish has undergone numerous design changes to improve its function and extend the range of its use. The most recent Sensor Fish design, the three degree of freedom (3DOF) device, has been used successfully to characterize the environment fish experience when passing through turbines, in spill, or in engineered fish bypass facilities at dams. Pacific Northwest National Laboratory (PNNL) is in the process of redesigning the current 3DOF Sensor Fish device package to improve its field performance. Rate gyros will be added to the new six degree of freedom (6DOF) device so that it will be possible to observe the six linear and angular accelerations of the Sensor Fish as it passes the dam. Before the 6DOF Sensor Fish device can be developed and deployed, governing equations of motion must be developed in order to understand the design implications of instrument selection and placement within the body of the device. In this report, we describe a fairly general formulation for the coordinate systems, equations of motion, force and moment relationships necessary to simulate the 6DOF movement of an underwater body. Some simplifications are made by considering the Sensor Fish device to be a rigid, axisymmetric body. The equations of motion are written in the body-fixed frame of reference. Transformations between the body-fixed and interial reference frames are performed using a formulation based on quaternions. Force and moment relationships specific to the Sensor Fish body are currently not available. However, examples of the trajectory simulations using the 6DOF equations are presented using existing low and high-Reynolds number force and moment correlations. Animation files for the test cases are provided in an attached CD. The next phase of the work will focus on the refinement and application of the 6DOF simulator developed in this project. Experimental and computational studies are planned to develop a set of force and moment relationships that are specific to the Sensor Fish body over the range of Reynolds numbers that it experiences. Lab testing of prototype 6DOF Sensor Fish will also allow for refinement of the trajectory simulations through comparison with observations in test flumes. The 6DOF simulator will also be an essential component in tools to analyze field data measured using the next generation Sensor Fish. The 6DOF simulator will be embedded in a moving-machinery computational fluid dynamics (CFD) model for hydroturbines to numerically simulate the 6DOF Sensor Fish.

Deng, Zhiqun; Richmond, Marshall C.; Simmons, Carver S.; Carlson, Thomas J.

2004-08-19T23:59:59.000Z

151

Joint Professional/Graduate Degree Program FORM: The faculties of the College of _____ and the College/School/Department of  

E-Print Network (OSTI)

Joint Professional/Graduate Degree Program FORM: The faculties of the College of _____ and the College/School/Department of ___________ have approved a joint degree program culminating in both/Specialist/Engineer/Master of _____ degree, awarded by the College/School/Department of ______. Under the joint degree program, a student can

Roy, Subrata

152

High precision redundant robotic manipulator  

SciTech Connect

A high precision redundant robotic manipulator for overcoming contents imposed by obstacles or imposed by a highly congested work space. One embodiment of the manipulator has four degrees of freedom and another embodiment has seven degreed of freedom. Each of the embodiments utilize a first selective compliant assembly robot arm (SCARA) configuration to provide high stiffness in the vertical plane, a second SCARA configuration to provide high stiffness in the horizontal plane. The seven degree of freedom embodiment also utilizes kinematic redundancy to provide the capability of avoiding obstacles that lie between the base of the manipulator and the end effector or link of the manipulator. These additional three degrees of freedom are added at the wrist link of the manipulator to provide pitch, yaw and roll. The seven degrees of freedom embodiment uses one revolute point per degree of freedom. For each of the revolute joints, a harmonic gear coupled to an electric motor is introduced, and together with properly designed based servo controllers provide an end point repeatability of less than 10 microns.

Young, Kar-Keung David (Mountain View, CA)

1998-01-01T23:59:59.000Z

153

High precision redundant robotic manipulator  

SciTech Connect

A high precision redundant robotic manipulator for overcoming contents imposed by obstacles or imposed by a highly congested work space is disclosed. One embodiment of the manipulator has four degrees of freedom and another embodiment has seven degrees of freedom. Each of the embodiments utilize a first selective compliant assembly robot arm (SCARA) configuration to provide high stiffness in the vertical plane, a second SCARA configuration to provide high stiffness in the horizontal plane. The seven degree of freedom embodiment also utilizes kinematic redundancy to provide the capability of avoiding obstacles that lie between the base of the manipulator and the end effector or link of the manipulator. These additional three degrees of freedom are added at the wrist link of the manipulator to provide pitch, yaw and roll. The seven degrees of freedom embodiment uses one revolute point per degree of freedom. For each of the revolute joints, a harmonic gear coupled to an electric motor is introduced, and together with properly designed based servo controllers provide an end point repeatability of less than 10 microns. 3 figs.

Young, K.K.D.

1998-09-22T23:59:59.000Z

154

Automorphisms of the truth-table degrees are fixed on some cone  

E-Print Network (OSTI)

Let Dtt denote the set of truth-table degrees. A bijection p from Dtt to Dtt is an automorphism if for all truth-table degrees x and y we have x =tt b we have p(x) = x. We first prove that for every 2-generic real X we have X' is not tt below X + 0'. We next prove that for every real X >=tt 0' there is a real Y such that Y + 0' =tt Y' =tt X. Finally, we use this to demonstrate that every automorphism of the truth-table degrees is fixed on some cone.

Anderson, Bernard A

2008-01-01T23:59:59.000Z

155

Dissolution of quartz in lead and sodium electrolyte solutions between 25 and 300[degrees]C: Effect of the nature of surface complexes and reaction affinity  

SciTech Connect

The dissolution rate of quartz has been measured at 25[degrees]C in batch reactors and at 200 and 300[degrees]C in mixed flow reactors. Those experiments have been carried out in both pure H[sub 2]O and solutions containing Na or Pb at various ionic strengths and pH. The measured rates were found to increase significantly with the addition of either Na or Pb. In an attempt to determine the mechanism of these effects, the degree of adsorption of Na and Pb were measured on amorphous silica at 25 and 150[degrees]C. At 25[degrees]C, Na is found to adsorb on the quartz surface as an outer-sphere complex, and the corresponding dissolution rate increase is explained by an increase of the ionic strength. By contrast, at 25[degrees], lead, which forms inner-sphere complexes, increases the quartz dissolution rate specifically. At high temperature, quartz dissolution is promoted in the presence of both Na and Pb by a pH-dependent formation of surface inner-sphere complexes. This effect tends to vanish when the degree of saturation of the solution increases, as a result of the competition between electrolyte and aqueous silica adsorption on quartz surface. These results show that the electrolytes which adsorb as inner-sphere complexes dominate the overall reaction at conditions far from equilibrium only. Consequently, for a large range of chemical affinity quartz dissolution in Na and Pb electrolyte solutions can be modeled within the framework of the Transition State Theory by simply taking into account the protonated surface species and the ionic strength of the solution.

Berger, G.; Cadore, E.; Schott, J. (Laboratoire de Geochimi, Toulouse (France)); Dove, P.M. (Princeton Univ., NJ (United States))

1994-01-01T23:59:59.000Z

156

The Complexity of Approximating Bounded-Degree Boolean #CSP (Extended Abstract)  

E-Print Network (OSTI)

The degree of a CSP instance is the maximum number of times that a variable may appear in the scope of constraints. We consider the approximate counting problem for Boolean CSPs with bounded-degree instances, for constraint languages containing the two unary constant relations {0} and {1}. When the maximum degree is at least 25 we obtain a complete classification of the complexity of this problem. It is exactly solvable in polynomial-time if every relation in the constraint language is affine. It is equivalent to the problem of approximately counting independent sets in bipartite graphs if every relation can be expressed as conjunctions of {0}, {1} and binary implication. Otherwise, there is no FPRAS unless NP=RP. For lower degree bounds, additional cases arise in which the complexity is related to the complexity of approximately counting independent sets in hypergraphs.

Dyer, Martin E; Jalsenius, Markus; Richerby, David

2010-01-01T23:59:59.000Z

157

Effective real-world project collaboration: Strategies from a cyber security degree program  

Science Conference Proceedings (OSTI)

The undergraduate degree of computer and cyber security has been offered at the School of Information Technology, Phetchaburi Rajabhat University, Thailand since 2005. Our program requires direct field experience when students are taking upper-level ...

Wajee Chookittikul; Peter E. Maher

2011-05-01T23:59:59.000Z

158

Transient stability enhancement of electric power generating systems by 120-degree phase rotation  

DOE Patents (OSTI)

A method and system for enhancing the transient stability of an intertied three-phase electric power generating system. A set of power exporting generators (10) is connected to a set of power importing generators (20). When a transient cannot be controlled by conventional stability controls, and imminent loss of synchronism is detected (such as when the equivalent rotor angle difference between the two generator sets exceeds a predetermined value, such as 150 degrees), the intertie is disconnected by circuit breakers. Then a switch (30) having a 120-degree phase rotation, or a circuit breaker having a 120-degree phase rotation is placed in the intertie. The intertie is then reconnected. This results in a 120-degree reduction in the equivalent rotor angle difference between the two generator sets, making the system more stable and allowing more time for the conventional controls to stabilize the transient.

Cresap, Richard L. (Portland, OR); Taylor, Carson W. (Portland, OR); Kreipe, Michael J. (Portland, OR)

1982-01-01T23:59:59.000Z

159

The BoPen : a tangible pointer tracked in six degrees of freedom  

E-Print Network (OSTI)

In this thesis, I designed and implemented an optical system for freehand interactions in six degrees of freedom. A single camera captures a pen's location and orientation, including roll, tilt, x, y, and z by reading ...

Taub, Daniel Matthew

2009-01-01T23:59:59.000Z

160

The Effective Number of Spatial Degrees of Freedom of a Time-Varying Field  

Science Conference Proceedings (OSTI)

The authors systematically investigate two easily computed measures of the effective number of spatial degrees of freedom (ESDOF), or number of independently varying spatial patterns, of a time-varying field of data. The first measure is based on ...

Christopher S. Bretherton; Martin Widmann; Valentin P. Dymnikov; John M. Wallace; Ileana Bladé

1999-07-01T23:59:59.000Z

Note: This page contains sample records for the topic "degrees fahrenheit high" 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

Brief 68.1 Nuclear Engineering Enrollments and Degrees Survey, 2010 Data  

SciTech Connect

The survey includes degrees granted between September 1, 2009 and August 31, 2010, and fall 2010 enrollments. Thirty-two academic programs reported having nuclear engineering programs during 2010, and data was obtained from all thirty-two.

Dr. Don Johnson, Analysis and Evaluation, Science Education Programs

2011-07-28T23:59:59.000Z

162

Resonant Third-Degree Diurnal Tides in the Seas off Western Europe  

Science Conference Proceedings (OSTI)

Third-degree diurnal tides are estimated from long time series of sea level measurements at three North Atlantic tide gauges. Although their amplitudes are only a few millimeters or less, their admittances are far larger than those of second-...

Richard D. Ray

2001-12-01T23:59:59.000Z

163

Interannual Variability in Global Soil Respiration on a 0.5 Degree...  

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

D. Bhagawati. 2003. Interannual Variability in Global Soil Respiration on a 0.5 Degree Grid Cell Basis (1980-1994). NDP-081. Carbon Dioxide Information Analysis Center, U.S....

164

Interannual Variability in Global Soil Respiration on a 0.5 Degree...  

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

Interannual Variability in Global Soil Respiration on a 0.5 Degree Grid Cell Basis (1980-1994) (NDP-081) DOI: 10.3334CDIAClue.ndp081 PDF PDF Contributors James W. Raich 1,...

165

Interannual Variability in Global Soil Respiration on a 0.5 Degree...  

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

D. Bhagawati. 2003. Interannual Variability in Global Soil Respiration on a 0.5 Degree Grid Cell Basis (1980-1994). ORNLCDIAC-144, NDP-081. Available on-line http:...

166

Recent and Future Trends in U.S. Undergraduate Meteorology Enrollments, Degree Recipients, and Employment Opportunities  

Science Conference Proceedings (OSTI)

Using data derived from the American Meteorological Society–University Corporation for Atmospheric Research Curricula and U.S. Department of Education statistics, it is found that the number of meteorology bachelor's degree recipients in the ...

John A. Knox

2008-06-01T23:59:59.000Z

167

Wind: monthly and annual average wind GIS data at one-degree...  

Open Energy Info (EERE)

monthly and annual average wind GIS data at one-degree resolution of the World from NASASSE

(Abstract):   Wind Speed At 50 m Above The Surface Of The Earth (m...

168

HUMAN DEVELOPMENT AND FAMILY STUDIES What can I do with this degree?  

E-Print Network (OSTI)

services agencies Federal, state and local government particularly Departments of Welfare and Health Degree? Page 3 AREAS EMPLOYERS STRATEGIES GOVERNMENT Federal, state and local government agencies agencies Summer camp programs Adult and child daycare providers Programs servicing children and adults

Escher, Christine

169

Stability ofBifurcatingSolutionsbyLeray-SchauderDegree D. H. SATTINGER  

E-Print Network (OSTI)

problems in nuclear reactor design, etc. For the purposes of this paper the principle of linearized at hand. There is, in addition, a natural motivation for using degree theory which is explained in w4

Zakharov, Vladimir

170

A complete minimal system of covariants for the binary form of degree 7  

Science Conference Proceedings (OSTI)

A minimal system of 147 homogeneous generators of the algebra of covariants for the binary form of degree 7 is calculated. Keywords: Classical invariant theory, Covariants of binary form, Derivations

Leonid Bedratyuk

2009-02-01T23:59:59.000Z

171

Table 1.10 Cooling Degree-Days by Census Division, 1949-2011  

U.S. Energy Information Administration (EIA)

Table 1.10 Cooling Degree-Days by Census Division, 1949-2011: Year: New England: Middle Atlantic: East North Central: West North Central: South Atlantic: East South

172

SoundStrand : a tangible interface for composing music with limited degrees of freedom  

E-Print Network (OSTI)

This thesis presents SoundStrand, a novel tangible interface for composing music. A new paradigm is also presented - one that allows for music composition with limited degrees of freedom, and therefore is well suited for ...

Shahar, Eyal

2012-01-01T23:59:59.000Z

173

PTAS for maximum weight independent set problem with random weights in bounded degree graphs  

E-Print Network (OSTI)

Finding the largest independent set in a graph is a notoriously difficult NP-complete combinatorial optimization problem. Moreover, even for graphs with largest degree 3, no polynomial time approximation algorithm exists ...

Gamarnik, David

174

Degree of compression and energy efficiency of a capillary compressor of femtosecond laser pulses  

Science Conference Proceedings (OSTI)

A relation between the degree of pulse compression and energy efficiency is derived for femtosecond laser pulse compressors that utilise spectral broadening of pulses in a gas-filled capillary. We show that the degree of compression has a maximum at an energy efficiency from 15% to 30%. A 15-fold compression of a 290-fs pulse with an energy efficiency of 24% is demonstrated.

Konyashchenko, Aleksandr V; Kostryukov, P V; Losev, Leonid L; Tenyakov, S Yu

2011-11-30T23:59:59.000Z

175

On Algebraic Solutions of Polynomial Equations of Degree n in one Variable  

E-Print Network (OSTI)

We will show that the roots of a polynomial equation in one variable of degree n are related to the solutions of a symmetric quadratic form in n-1 variables with constant positive integer coefficients. The classic polynomial notation will be rewritten to define a characteristic discriminant of a polynomial of degree n. A new set of characteristic roots allows expressing the characteristic discriminant as the result of a symmetric quadratic form.

Gerry Martens

2006-05-07T23:59:59.000Z

176

Ultrascalable Implicit Finite Element Analyses in Solid Mechanics with over a Half a Billion Degrees of Freedom  

E-Print Network (OSTI)

We present a highly parallel finite element program, Olympus, equipped with an ultrascalable linear solver, Prometheus, applied to micro-FE bone modeling calculations on an IBM SP Power3. Scalability is demonstrated with scaled speedup studies of a non-linear analyses of a vertebral body with over a half of a billion degrees of freedom. We show parallel scalability with up to 4088 processors on the ACSI White machine. This work is significant in that, in the domain of unstructured implicit finite element analysis in solid mechanics with complex geometry, this is the first demonstration of a highly parallel, and e#cient, application of a mathematically optimal linear solution method---smoothed aggregation algebraic multigrid.

Mark F. Adams; Harun H. Bayraktar; Tony M. Keaveny; Panayiotis Papadopoulos

2004-01-01T23:59:59.000Z

177

Electric-Field Enhancement by Nodular Defects in Multilayer Coatings Irradiated at Normal and 45 (degree) Incidence  

SciTech Connect

The standing-wave electric-field profile within multilayer coatings is significantly perturbated by a nodular defect. The intensity, which is proportional to the electric field squared, is increased in the high index material by {>=}3x at normal incidence and {>=}12x at 45 degrees incidence angle. Therefore it is not surprising that nodular defects are initiation sites of laser-induced damage. In this study, the impact of reflectance-band centering and incident angle are explored for a 1 {micro}m diameter nodular defect seed overcoated with a 24 layer high-reflector constructed of quarter-wave thick alternating layers of hafnia and silica. The modeling was performed using a three-dimensional finite-element analysis code.

Stolz, C J; Genin, F Y; Pistor,T V

2003-09-18T23:59:59.000Z

178

Yeast and Temperature  

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

Yeast and Temperature Yeast and Temperature Name: Alyssaaum Location: N/A Country: N/A Date: N/A Question: How does temperature affect yeast? Replies: Dear Alyssa, At low temperatures (0-10 C) yeast will not grow, but not die either. At temperatures 10-37 C yeast will grow and multiply, faster at higher temperatures with an optimal growth at 30 or 37 C (that depends on the species). At higher temperature the cells become stressed, meaning that their content becomes damaged and which can be repaired to some degree. At high temperatures (>50 C) the cells die. The bacteria can survive freezing under certain conditions. When baking bread all yeast dies during the process. Dr. Trudy Wassenaar yeast is a unique type of fungi that grows quickly by rapid cell division. It grows best at about 100 degrees fahrenheit, colder will cause it to go dormant, much warmer could kill it

179

Development of Stronger and More Reliable Cast Austenitic Stainless Steels (H-Series) Based on Scientific and Design Methodology  

Science Conference Proceedings (OSTI)

The goal of this project was to increase the high-temperature strength of the H-Series of cast austenitic stainless steels by 50% and the upper use temperature by 86 to 140 degrees fahrenheit (30 to 60 degrees celsius). Meeting this goal is expected to result in energy savings of 35 trillion Btu/year by 2020 and energy cost savings of approximately $230 million/year. The higher-strength H-Series cast stainless steels (HK and HP type) have applications for the production of ethylene in the chemical industry, for radiant burner tubes and transfer rolls for secondary processing of steel in the steel industry, and for many applications in the heat treating industry, including radiant burner tubes. The project was led by Duraloy Technologies, Inc., with research participation by Oak Ridge National Laboratory (ORNL) and industrial participation by a diverse group of companies.

Pankiw, Roman I; Muralidharan, G. (Murali); Sikka, Vinod K.

2006-06-30T23:59:59.000Z

180

High Biomass Low Export Regimes in the Southern Ocean  

E-Print Network (OSTI)

of enhanced carbon biomass and export at 55 degrees S duringHigh Biomass Low Export Regimes in the Southern Ocean PhoebeSurface waters with high biomass levels and high proportion

Lam, Phoebe J.; Bishop, James K.B.

2006-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "degrees fahrenheit high" 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

Cooling Degree Days, by State (Weighted by Population, per 2000 Census) |  

Open Energy Info (EERE)

Cooling Degree Days, by State (Weighted by Population, per 2000 Census) Cooling Degree Days, by State (Weighted by Population, per 2000 Census) Dataset Summary Description The National Oceanic and Atmospheric Administration's (NOAA) National Environmental Satellite, Data, and Information Services (NESDIS), in conjunction with the National Climatic Data Center (NCDC) publish monthly and annual climate data by state for the U.S., including, cooling degree days (total number of days per month and per year). The average values for each state are weighted by population, using 2000 Census data. The base temperature for this dataset is 65 degrees F. Included here are monthly and annual values averaged over several periods of time: 1931-2000, 1931-60, 1941-70, 1951-80, 1961-90, 1971-2000 (standard deviation is also provided). Detailed monthly climatic information (including cooling degree days) is available for the time period between 1895 and 2011, from NOAA (http://www7.ncdc.noaa.gov/CDO/CDODivisionalSelect.jsp#).

182

POSSIBLE CHANGES OF STATE AND RELEVANT TIMESCALES FOR A NEUTRON STAR IN LS I +61 Degree-Sign 303  

SciTech Connect

The properties of the short, energetic bursts recently observed from the {gamma}-ray binary LS I +61 Degree-Sign 303 are typical of those showed by high magnetic field neutron stars (NSs) and thus provide a strong indication in favor of a NS being the compact object in the system. Here, we discuss the transitions among the states accessible to a NS in a system like LS I +61 Degree-Sign 303, such as the ejector, propeller, and accretor phases, depending on the NS spin period, magnetic field, and rate of mass captured. We show how the observed bolometric luminosity ({approx}> few Multiplication-Sign 10{sup 35} erg s{sup -1}) and its broadband spectral distribution indicate that the compact object is most probably close to the transition between working as an ejector all along its orbit and being powered by the propeller effect when it is close to the orbit periastron, in a so-called flip-flop state. By assessing the torques acting onto the compact object in the various states, we follow the spin evolution of the system, evaluating the time spent by the system in each of them. Even taking into account the constraint set by the observed {gamma}-ray luminosity, we found that the total age of the system is compatible with being Almost-Equal-To 5-10 kyr, comparable to the typical spin-down ages of high-field NSs. The results obtained are discussed in the context of the various evolutionary stages expected for a NS with a high-mass companion.

Papitto, A.; Torres, D. F.; Rea, N. [Institut de Ciencies de l'Espai (IEEC-CSIC) Campus UAB, Fac. de Ciencies, Torre C5 parell, 2a planta, E-08193 Barcelona (Spain)

2012-09-10T23:59:59.000Z

183

Assessment of extent and degree of thermal damage to polymeric materials in the Three Mile Island Unit 2 Reactor building  

DOE Green Energy (OSTI)

This paper describes assumptions and procedures used to perform thermal damage analysis caused by post loss-of-coolant-accident (LOCA) hydrogen deflagration at Three Mile Island Unit 2 Reactor. Examination of available photographic evidence yields data on the extent and range of thermal and burn damage. Thermal damage to susceptible material in accessible regions of the reactor building was distributed in non-uniform patterns. No clear explanation for non-uniformity was found in examined evidence, e.g., burned materials were adjacent to materials that appear similar but were not burned. Because these items were in proximity to vertical openings that extend the height of the reactor building, we assume the unburned materials preferentially absorbed water vapor during periods of high, local steam concentration. A control pendant from the polar crane located in the top of the reactor building sustained asymmetric burn damage of decreasing degree from top to bottom. Evidence suggests the polar-crane pendant side that experienced heaviest damage was exposed to intense radiant energy from a transient fire plume in the reactor containment volume. Simple hydrogen-fire-exposure tests and heat transfer calculations approximate the degree of damage found on inspected materials from the containment building and support for an estimated 8% pre-fire hydrogen.

Alvares, N.J.

1985-06-01T23:59:59.000Z

184

Optimizing Energy Management Strategy and Degree of Hybridization for a Hydrogen Fuel Cell SUV  

E-Print Network (OSTI)

Previous work examined degree of hybridization on the fuel economy of a hybrid electric sport utility vehicle. It was observed that not only was the vehicle control strategy important, but that its definition should be coupled with the component sizing process. Both degree of hybridization and the energy management strategy have been optimized simultaneously in this study. Simple mass scaling algorithms were employed to capture the effect of component and vehicle mass variations as a function of degree of hybridization. Additionally, the benefits of regenerative braking and power buffering have been maximized using optimization methods to determine appropriate battery pack sizing. Both local and global optimization routines were applied to improve the confidence in the solution being close to the true optimum. An optimal configuration and energy management strategy that maximizes the benefit of hybridization for a hydrogen fuel cell hybrid SUV was derived. The optimal configuration was explored, and sensitivity to drive cycle in the optimization process was studied.

Keith Wipke Tony; Tony Markel; Doug Nelson

2001-01-01T23:59:59.000Z

185

Manpower Assessment Brief {number_sign}42: Nuclear Engineering Enrollments and Degrees Decreased at all Levels in 1997  

SciTech Connect

This report presents the findings from a 1997 enrollment and degree survey sent to 46 institutions offering a major in nuclear engineering or an option program received their degrees within the nuclear engineering major programs.

1998-06-01T23:59:59.000Z

186

Improved Results for the H-2(d, n)(3) He Transverse Vector Polarization- Transfer Coefficient K-y(y)' (0 degrees) at Low Energies  

Science Conference Proceedings (OSTI)

Measurements of the H-2(d, n)(3) He transverse vector polarization-transfer coefficient K-y(y)' at 0 degrees. are reported for 29 outgoing neutron energies between 3.94 and 8.47MeV. Our new results determine K-y(y)' (0 degrees) more accurately than previous data, especially for neutron energies below 5MeV. Low-energy data for this reaction are important both as a high-intensity source of highly polarized neutrons for nuclear physics studies with polarized neutron beams, and as a test of the emerging theoretical descriptions of the four-body system, where recently substantial progress has been made.

Roper, C. D. [Duke University/TUNL; Clegg, T. [Triangle Universities Nuclear Laboratory, Durham, NC; Dunham, J. D. [Duke University/TUNL; Mendez, II, Anthony J [ORNL; Tornow, W. [Duke University/TUNL; Walter, R. L. [Duke University/TUNL

2010-01-01T23:59:59.000Z

187

A variation aware high level synthesis framework  

Science Conference Proceedings (OSTI)

The worst-case delay/power of function units has been used in traditional high level synthesis to facilitate design space exploration. As technology scales to nanometer regime, the impact of process variations increases. The degree of variability encountered ...

Feng Wang; Guangyu Sun; Yuan Xie

2008-03-01T23:59:59.000Z

188

Quantitative comparison between the degree of domain orientation and nonlinear properties of a PZT ceramic during electrical and mechanical loading  

Science Conference Proceedings (OSTI)

The macroscopic electromechanical coupling properties of ferroelectric polycrystals are composed of linear and nonlinear contributions. The nonlinear contribution is typically associated with the extrinsic effects related to the creation and motion of domain walls. To quantitatively compare the macroscopic nonlinear properties of a lead zirconate titanate ceramic and the degree of domain orientation, in-situ neutron and high-energy x-ray diffraction experiments are performed and they provide the domain orientation density as a function of the external electric field and mechanical compression. Furthermore, the macroscopic strain under the application of external electrical and mechanical loads is measured and the nonlinear strain is calculated by means of the linear intrinsic piezoelectric effect and the linear intrinsic elasticity. The domain orientation density and the nonlinear strain show the same dependence on the external load. The scaling factor that relates to the two values is constant and is the same for both electrical and mechanical loadings.

Marsilius, Mie; Granzow, Torsten; Jones, Jacob L. (Florida); (Darmstadt)

2011-10-26T23:59:59.000Z

189

Heating Degree Days, by State (Weighted by Population, per 2000 Census) |  

Open Energy Info (EERE)

66 66 Varnish cache server Browse Upload data GDR 429 Throttled (bot load) Error 429 Throttled (bot load) Throttled (bot load) Guru Meditation: XID: 2142278566 Varnish cache server Heating Degree Days, by State (Weighted by Population, per 2000 Census) Dataset Summary Description The National Oceanic and Atmospheric Administration's (NOAA) National Environmental Satellite, Data, and Information Services (NESDIS), in conjunction with the National Climatic Data Center (NCDC) publish monthly and annual climate data by state for the U.S., including, heating degree days (total number of days per month and per year). The average values for each state are weighted by population, using 2000 Census data. The base temperature for this dataset is 65 degrees F. Included here are monthly and annual values averaged over several periods of time: 1931-2000, 1931-60, 1941-70, 1951-80, 1961-90, 1971-2000 (standard deviation is also provided). Detailed monthly climatic information (including heating degree days) is available for the time period between 1895 and 2011, from NOAA (http://www7.ncdc.noaa.gov/CDO/CDODivisionalSelect.jsp#).

190

Work integrated learning rationale and practices in Australian information and communications technology degrees  

Science Conference Proceedings (OSTI)

To obtain a better understanding of WIL rationale and practices in Australian ICT degrees, a survey of managers and educational leaders of ICT was undertaken. These survey results were analysed and informed by discussions at a forum of ICT educational ... Keywords: academia, industry, professional practice, student experience, work integrated learning

Chris J Pilgrim, Tony Koppi

2012-01-01T23:59:59.000Z

191

The CompuTer SCienCe program The bachelor of science degree in computer science  

E-Print Network (OSTI)

The CompuTer SCienCe program The bachelor of science degree in computer science offered in the fundamentals of computer science, elements of practical application and an appreciation for liberal learning to work within various areas of computer science and to work across other disciplines. program edu

Suzuki, Masatsugu

192

The greedy algorithm for domination in graphs of maximum degree 3  

Science Conference Proceedings (OSTI)

We show that for a connected graph with n nodes and e edges and maximum degree at most 3, the size of the dominating set found by the greedy algorithm is at most 10n - 2e/13 if e ? 11/10n, 11n - ... Keywords: algorithms, dominating set, maximum size

Suzanne M. Seager

2004-01-01T23:59:59.000Z

193

Absence of Zeros for the Chromatic Polynomial on Bounded Degree Graphs  

Science Conference Proceedings (OSTI)

In this paper, I give a short proof of a recent result by Sokal, showing that all zeros of the chromatic polynomial $P_G(q)$ of a finite graph $G$ of maximal degree $D$ lie in the disk $|q|< K D$, where $K$ is a constant that is strictly smaller than ...

Christian Borgs

2006-01-01T23:59:59.000Z

194

The Curriculum Planning Process for Undergraduate Game Degree Programs in the United Kingdom and United States  

Science Conference Proceedings (OSTI)

Digital games are marketed, mass-produced, and consumed by an increasing number of people and the game industry is only expected to grow. In response, postsecondary institutions in the UK and the U.S. have started to create game degree programs. Though ... Keywords: Education, curriculum, game, instruction

Monica M. McGill

2012-04-01T23:59:59.000Z

195

PROCESS DESIGN AND CONTROL Steady-State Operational Degrees of Freedom with Application to Refrigeration  

E-Print Network (OSTI)

PROCESS DESIGN AND CONTROL Steady-State Operational Degrees of Freedom with Application to Refrigeration Cycles Jørgen Bauck Jensen and Sigurd Skogestad* Department of Chemical Engineering, Norwegian Uni of the circulating refrigerant are also discussed. Two liquified natural gas (LNG) processes of current interest

Skogestad, Sigurd

196

Study in Indonesia and gain credit towards your degree! DevelopmentStudiesImmersionProgram ACICIS  

E-Print Network (OSTI)

Study in Indonesia and gain credit towards your degree! DevelopmentStudiesImmersionProgram ACICIS an internship in Indonesia! © Photograph by James Walsh #12;w w w . a c i c i s . m u r d o c h . e d u . a u development issues in Indonesia while also gaining im- portant practical skills related to advocacy

197

THE DEVELOPMENT OF A 1990 GLOBAL INVENTORY FOR SO(X) AND NO(X) ON A 1(DEGREE) X 1(DEGREE) LATITUDE-LONGITUDE GRID.  

SciTech Connect

Sulfur and nitrogen oxides emitted to the atmosphere have been linked to the acidification of water bodies and soils and perturbations in the earth's radiation balance. In order to model the global transport and transformation of SO{sub x} and NO{sub x}, detailed spatial and temporal emission inventories are required. Benkovitz et al. (1996) published the development of an inventory of 1985 global emissions of SO{sub x} and NO{sub x} from anthropogenic sources. The inventory was gridded to a 1{degree} x 1{degree} latitude-longitude grid and has served as input to several global modeling studies. There is now a need to provide modelers with an update of this inventory to a more recent year, with a split of the emissions into elevated and low level sources. This paper describes the development of a 1990 update of the SO{sub x} and NO{sub x} global inventories that also includes a breakdown of sources into 17 sector groups. The inventory development starts with a gridded global default EDGAR inventory (Olivier et al, 1996). In countries where more detailed national inventories are available, these are used to replace the emissions for those countries in the global default. The gridded emissions are distributed into two height levels (0-100m and >100m) based on the final plume heights that are estimated to be typical for the various sectors considered. The sources of data as well as some of the methodologies employed to compile and develop the 1990 global inventory for SO{sub x} and NO{sub x} are discussed. The results reported should be considered to be interim since the work is still in progress and additional data sets are expected to become available.

VAN HEYST,B.J.

1999-10-01T23:59:59.000Z

198

Rattlesnake Mountain Observator (46.4{degrees}N, 119.6{degrees}W) multispectral optical depth measurements, 1979--1994  

DOE Green Energy (OSTI)

Surface measurements of solar irradiance of the atmosphere were made by a multipurpose computer-controlled scanning photometer at the Rattlesnake Mountain Observatory. The observatory is located at 46.4{degrees}N, 119.6{degrees}W at an elevation of 1088 m above mean sea level. The photometer measures the attenuation of direct solar radiation for different wavelengths using 12 filters. Five of these filters (ie., at 428 nm, 486 nm, 535 nm, 785 nm, and 1010 nm, with respective half-power widths of 2, 2, 3, 18, and 28 nm) are suitable for monitoring variations in the total optical depth of the atmosphere. Total optical depths for the five wavelength bands were derived from solar irradiance measurements taken at the observatory from August 5, 1979, to September 2, 1994; these total optical depth data are distributed with this numeric data package (NDP). To determine the contribution of atmospheric aerosols to the total optical depths, the effects of Rayleigh scattering and ozone absorption were subtracted (other molecular scattering was minimal for the five filters) to obtain total column aerosol optical depths. The total aerosol optical depths were further decomposed into tropospheric and stratospheric components by calculating a robustly smoothed mean background optical depth (tropospheric component) for each wavelength using data obtained during periods of low stratospheric aerosol loading. By subtracting the smoothed background tropospheric aerosol optical depths from the total aerosol optical depths, residual aerosol optical depths were obtained. These residuals are good estimates of the stratospheric aerosol optical depth at each wavelength and may be used to monitor the long-term effects of volcanic eruptions on the atmosphere. These data are available as an NDP from the Carbon Dioxide Information Analysis Center (CDIAC), and the NDP consists of this document and a set of computerized data files.

Daniels, R.C. [ed.] [ed.

1995-09-22T23:59:59.000Z

199

Photo of the Week: How to Grow Superconducting Crystals | Department of  

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

How to Grow Superconducting Crystals How to Grow Superconducting Crystals Photo of the Week: How to Grow Superconducting Crystals September 13, 2013 - 11:29am Addthis Many of the materials that scientists work with at Brookhaven National Laboratory are too small and too precise for traditional tools. In cases like these, the labs grow materials instead of building them. Brookhaven physicist Genda Gu pioneered techniques that grow some of the largest single-crystal high-temperature superconductors in the world. The glowing chamber in this photo grows superconducting crystals. To do so, the furnace focuses infrared light onto a rod, melting it around 4,000 degrees Fahrenheit. Under just the right conditions, the liquefied material recrystallizes as a single uniform structure, which is highly sensitive and takes about one month to form. | Photo courtesy of Brookhaven National Laboratory.

200

Optimal Constant-Time Approximation Algorithms and (Unconditional) Inapproximability Results for Every Bounded-Degree CSP  

E-Print Network (OSTI)

Raghavendra (STOC 2008) gave an elegant and surprising result: if Khot's Unique Games Conjecture (STOC 2002) is true, then for every constraint satisfaction problem (CSP), the best approximation ratio is attained by a certain simple semidefinite programming and a rounding scheme for it. In this paper, we show that a similar result holds for constant-time approximation algorithms in the bounded-degree model. Specifically, we present the followings: (i) For every CSP, we construct an oracle that serves an access, in constant time, to a nearly optimal solution of a basic LP relaxation of the CSP. (ii) Using the oracle, we present a constant-time rounding scheme that achieves an approximation ratio coincident with the integrality gap of the basic LP. (iii) We give a generic conversion from integrality gaps of basic LPs to hardness results. All of those results are ``unconditional.'' Therefore, for every bounded-degree CSP, we give the best constant-time approximation algorithm among all.

Yoshida, Yuichi

2010-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "degrees fahrenheit high" 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

Lattice polytopes having h?-polynomials with given degree and linear coefficient  

E-Print Network (OSTI)

The h?-polynomial of a lattice polytope is the numerator of the generating function of the Ehrhart polynomial. Let P be a lattice polytope with h?-polynomial of degree d and with linear coefficient h ? 1. We show that P has to be a lattice pyramid over a lower-dimensional lattice polytope, if the dimension of P is greater or equal to h ? 1 (2d + 1) + 4d ? 1. This result has a purely combinatorial proof and generalizes a recent theorem of Batyrev. As an application we deduce from an inequality due to Stanley that the volume of a lattice polytope is bounded by a function depending only on the degree and the two heighest non-zero coefficients of the h?-polynomial.

Benjamin Nill

2007-01-01T23:59:59.000Z

202

Wind: monthly and annual average wind GIS data at one-degree resolution of  

Open Energy Info (EERE)

monthly and annual average wind GIS data at one-degree resolution of monthly and annual average wind GIS data at one-degree resolution of the World from NASA/SSE Dataset Summary Description (Abstract): Wind Speed At 50 m Above The Surface Of The Earth (m/s)NASA Surface meteorology and Solar Energy (SSE) Release 5 Data Set (Jan. 2005)10-year Monthly & Annual Average (July 1983 - June 1993) Parameter: Wind Speed At 50 m Above The Surface Of The Earth (m/s) Internet: http://eosweb.larc.nasa.gov/sse/ Note: SSE Methodology & Accuracy sections online Created: October 4, 2005 See the NASA Surface meteorology and Solar Energy (SSE) web site at http://eosweb.larc.nasa.gov/sse/. The source data was downloaded from the SSE website at Data Retrieval: Meteorology and Solar Energy > Global data sets as text files. The tabular data was then converted to the shapefile format.

203

Cosmological dynamics of $f(R)$ gravity scalar degree of freedom in Einstein frame  

E-Print Network (OSTI)

$f(R)$ gravity models belong to an important class of modified gravity models where the late time cosmic accelerated expansion is considered as the manifestation of the large scale modification of the force of gravity. $f(R)$ gravity models can be expressed in terms of a scalar degree of freedom by redefinition of models variable. The conformal transformation of the action from Jordan frame to Einstein frame makes the scalar degree of freedom more explicit and can be studied conveniently. We have investigated the features of the scalar degree of freedoms and the consequent cosmological implications of the power-law ($\\xi R^n$) and the Starobinsky (disappearing cosmological constant) $f(R)$ gravity models numerically in the Einstein frame. Both the models show interesting behaviour of their scalar degree of freedom and could produce the accelerated expansion of the Universe in the Einstein frame with the negative equation of state of the scalar field. However the scalar field potential for the power-law model is the well behaved function of the field, whereas the potential becomes flat for higher value of field in the case of the Starobinsky model. Moreover, the equation of state of the scalar field for the power-law model is always negative and less than -1/3, which corresponds to the behaviour of the dark energy that produces the accelerated expansion of the Universe. This is not always the case for the Starobinsky model. At late times Starobinsky model behaves as cosmological constant $\\Lambda$ as behaves by power-law model for the values of $n\\rightarrow 2$ at all times.

Umananda Dev Goswami; Kabita Deka

2013-03-23T23:59:59.000Z

204

{100} or 45.degree.-rotated {100}, semiconductor-based, large-area, flexible, electronic devices  

Science Conference Proceedings (OSTI)

Novel articles and methods to fabricate the same resulting in flexible, {100} or 45.degree.-rotated {100} oriented, semiconductor-based, electronic devices are disclosed. Potential applications of resulting articles are in areas of photovoltaic devices, flat-panel displays, thermophotovoltaic devices, ferroelectric devices, light emitting diode devices, computer hard disc drive devices, magnetoresistance based devices, photoluminescence based devices, non-volatile memory devices, dielectric devices, thermoelectric devices and quantum dot laser devices.

Goyal, Amit (Knoxville, TN)

2012-05-15T23:59:59.000Z

205

Oxygen to the core  

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

1-01 1-01 For immediate release: 01/10/2013 | NR-13-01-01 Oxygen to the core Anne M Stark, LLNL, (925) 422-9799, stark8@llnl.gov Printer-friendly An artist's conception of Earth's inner and outer core. LIVERMORE, Calif. -- An international collaboration including researchers from Lawrence Livermore National Laboratory has discovered that the Earth's core formed under more oxidizing conditions than previously proposed. Through a series of laser-heated diamond anvil cell experiments at high pressure (350,000 to 700,000 atmospheres of pressure) and temperatures (5,120 to 7,460 degrees Fahrenheit), the team demonstrated that the depletion of siderophile (also known as "iron loving") elements can be produced by core formation under more oxidizing conditions than earlier

206

AFA Steels  

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

AFA Steels Home AFA Steels Home Contacts Goal Advanced Research Material Projects Related Links CF8C-Plus Steels MSTD Corrosion Science & Technology Group Oak Ridge National Laboratory ORNL Fossil Energy Program ORNL Industrial Technologies Program U.S. Department of Energy Office of Fossil Energy Advanced Research Materials Program Office of Energy Efficiency and Renewable Energy Industrial Technologies Program Distributed Energy Program Comments AFA: Alumina-Forming Austenitic Stainless Steels AFA stainless steels boast an increased upper-temperature oxidation, or corrosion, limit that is 100 to 400 degrees Fahrenheit higher than that of conventional stainless steels. These new alloys deliver this superior oxidation resistance with high-temperature strengths approaching that of

207

Reading Comprehension - Liquid Nitrogen  

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

Liquid Nitrogen Liquid Nitrogen Nitrogen is the most common substance in Earth's _________ crust oceans atmosphere trees . In the Earth's atmosphere, nitrogen is a gas. The particles of a gas move very quickly. They run around and bounce into everyone and everything. The hotter a gas is, the _________ slower faster hotter colder the particles move. When a gas is _________ cooled warmed heated compressed , its particles slow down. If a gas is cooled enough, it can change from a gas to a liquid. For nitrogen, this happens at a very _________ strange warm low high temperature. If you want to change nitrogen from a gas to a liquid, you have to bring its temperature down to 77 Kelvin. That's 321 degrees below zero _________ Kelvin Celsius Centigrade Fahrenheit ! Liquid nitrogen looks like water, but it acts very differently. It

208

Solar Cookers to Bring Hope to Earthquake Victims | Department of Energy  

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

Cookers to Bring Hope to Earthquake Victims Cookers to Bring Hope to Earthquake Victims Solar Cookers to Bring Hope to Earthquake Victims March 8, 2010 - 11:00am Addthis How does it work? The type of cooker distributed by Solar Cookers International consists of two parts: a heat-resistant plastic bag placed around a dark-colored cooking pot. When sunlight passes through the bag and hits the pot, it's converted into heat energy. The heat energy can't get out of the plastic bag as easily as the light got in, which traps the heat inside. This allows cookers to reach temperatures around 250 degrees Fahrenheit, high enough to boil water. January's devastating earthquake made Haiti's previous power infrastructure problems even worse. According to the World Bank, Haitians meet about 70 percent of their power needs by burning firewood or charcoal.

209

Plastics' Color Problem: How a New Device Will Prevent Waste | Department  

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

Plastics' Color Problem: How a New Device Will Prevent Waste Plastics' Color Problem: How a New Device Will Prevent Waste Plastics' Color Problem: How a New Device Will Prevent Waste July 22, 2010 - 3:20pm Addthis This is a probe for use in an extruder, similar to the one being developed by Guided Wave of Rancho Cordova, Calif. | Photo courtesy of Guided Wave. This is a probe for use in an extruder, similar to the one being developed by Guided Wave of Rancho Cordova, Calif. | Photo courtesy of Guided Wave. What are the key facts? Commercial plastics made at 752 degrees Fahrenheit and 2,000 psi Conventional plastic color detectors break at high temps and pressures Plastics with incorrect colors, require rerunning production - wasting energy $250,000 DOE grant to support development of improved probe Color can make or break commercial plastics. And commercial or extruded

210

Liquid Fuel from Heat-Loving Microorganisms: H2-Dependent Conversion of CO2 to Liquid Electrofuels by Extremely Thermophilic Archaea  

SciTech Connect

Electrofuels Project: NC State is working with the University of Georgia to create Electrofuels from primitive organisms called extremophiles that evolved before photosynthetic organisms and live in extreme, hot water environments with temperatures ranging from 167-212 degrees Fahrenheit The team is genetically engineering these microorganisms so they can use hydrogen to turn carbon dioxide directly into alcohol-based fuels. High temperatures are required to distill the biofuels from the water where the organisms live, but the heat-tolerant organisms will continue to thrive even as the biofuels are being distilled—making the fuel-production process more efficient. The microorganisms don’t require light, so they can be grown anywhere—inside a dark reactor or even in an underground facility.

2010-07-01T23:59:59.000Z

211

Solar Cookers to Bring Hope to Earthquake Victims | Department of Energy  

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

Solar Cookers to Bring Hope to Earthquake Victims Solar Cookers to Bring Hope to Earthquake Victims Solar Cookers to Bring Hope to Earthquake Victims March 8, 2010 - 11:00am Addthis How does it work? The type of cooker distributed by Solar Cookers International consists of two parts: a heat-resistant plastic bag placed around a dark-colored cooking pot. When sunlight passes through the bag and hits the pot, it's converted into heat energy. The heat energy can't get out of the plastic bag as easily as the light got in, which traps the heat inside. This allows cookers to reach temperatures around 250 degrees Fahrenheit, high enough to boil water. January's devastating earthquake made Haiti's previous power infrastructure problems even worse. According to the World Bank, Haitians meet about 70 percent of their power needs by burning firewood or charcoal.

212

Fracture and fatigue properties of Mo-Mo{sub 3}Si-Mo{sub 5}SiB{sub 2} refractory intermetallic alloys at ambient to elevated temperatures (25-1300 degrees Centigrade)  

Science Conference Proceedings (OSTI)

The need for structural materials with high-temperature strength and oxidation resistance coupled with adequate lower-temperature toughness for potential use at temperatures above {approx} 1000 degrees C has remained a persistent challenge in materials science. In this work, one promising class of intermetallic alloys is examined, namely boron-containing molybdenum silicides, with compositions in the range Mo (bal), 12-17 at. percentSi, 8.5 at. percentB, processed using both ingot (I/M) and powder (P/M) metallurgy methods. Specifically, the oxidation (''pesting''), fracture toughness and fatigue-crack propagation resistance of four such alloys, which consisted of {approx}21 to 38 vol. percent a-Mo phase in an intermetallic matrix of Mo3Si and Mo5SiB2 (T2), were characterized at temperatures between 25 degrees and 1300 degrees C. The boron additions were found to confer superior ''pest'' resistance (at 400 degrees to 900 degrees C) as compared to unmodified molybdenum silicides, such as Mo5Si3. Moreover , although the fracture and fatigue properties of the finer-scale P/M alloys were only marginally better than those of MoSi2, for the I/M processed microstructures with coarse distributions of the a-Mo phase, fracture toughness properties were far superior, rising from values above 7 MPa sqrt m at ambient temperatures to almost 12 MPa sqrt m at 1300 degrees C.

Choe, Heeman; Schneibel, J.H.; Ritchie, R.O.

2002-08-01T23:59:59.000Z

213

Flux control and one-hundred and eighty degree core systems  

DOE Patents (OSTI)

A two-phase or four-phase electric machine includes a first stator part and a second stator part disposed about ninety electrical degrees apart. Stator pole parts are positioned near the first stator part and the second stator part. An injector injects a third-harmonic frequency current that is separate from and not produced by the fundamental current driving the first stator part and the second stator part. The electric angular speed of the third-harmonic rotating field comprises .theta. ##EQU00001## where p comprises the number of pole pairs, .theta. comprises a mechanical angle and t comprise time in seconds.

Hsu, John S

2012-11-27T23:59:59.000Z

214

Alloys for 1000 degree C service in the Next Generation Nuclear Plant NERI 05-0191  

SciTech Connect

The objective of the proposed research is to define strategies for the improvement of alloys for structural components, such as the intermediate heat exchanger and primary-to-secondary piping, for service at 1000 degree C in the He environment of the NGNP. Specifically, we will investigate the oxidation/carburization behavior and microstructure stability and how these processes affect creep. While generating this data, the project will also develop a fundamental understanding of how impurities in the He environment affect these degradation processes and how this understanding can be used to develop more useful life prediction methodologies.

Gary S. Was; J.W. Jones; T. Pollock

2009-01-15T23:59:59.000Z

215

Longitudinal permeability of collisional plasmas under arbitrary degree of degeneration of electron gas  

E-Print Network (OSTI)

Electric conductivity and dielectric permeability of the non-degenerate electronic gas for the collisional plasmas under arbitrary degree of degeneration of electron gas is found. The kinetic equation of Wigner - Vlasov - Boltzmann with collision integral in relaxation form BGK (Bhatnagar, Gross and Krook) in coordinate space is used. Dielectric permeability with using of the relaxation equation in the momentum space has been received by Mermin. Comparison with Mermin's formula has been realized. It is shown, that in the limit when Planck's constant tends to zero expression for dielectric permeability passes in the classical.

A. V. Latyshev; A. A. Yushkanov

2010-03-04T23:59:59.000Z

216

Developments in the Nuclear Safeguards and Security Engineering Degree Program at Tomsk Polytechnic University  

SciTech Connect

Over the last six years, Tomsk Polytechnic University (TPU) has developed a 5½ year engineering degree program in the field of Material Protection Control and Accounting (MPC&A). In 2009 the first students graduated with this new degree. There were 25 job offers from nuclear fuel cycle enterprises of Russia and Kazakhstan for 17 graduates of the program. Due to the rather wide selection of workplaces, all graduates have obtained positions at nuclear enterprises. The program was developed within the Applied Physics and Engineering Department (APED). The laboratory and methodological base has been created taking into consideration the experience of the similar program at the Moscow Engineering Physics Institute (MEPhI). However, the TPU program has some distinguishing features such as the inclusion of special courses pertaining to fuel enrichment and reprocessing. During the last two years, three MPC&A laboratories have been established at APED. This was made possible due to several factors such as establishment of the State innovative educational program at TPU, assistance of the U.S. Department of Energy through Pacific Northwest National Laboratory and Los Alamos National Laboratory, and the financial support of the Swedish Radiation Safety Authority and some Russian private companies. All three of the MPC&A laboratories are part of the Innovative Educational Center “Nuclear Technologies and Non-Proliferation,” which deals with many topics including research activities, development of new curricula for experts training and retraining, and training of master’s students. In 2008, TPU developed a relationship with the International Atomic Energy Agency (IAEA), which was familiarized with APED’s current resources and activities. The IAEA has shown interest in creation of a master’s degree educational program in the field of nuclear security at TPU. A future objective is to acquaint nuclear fuel cycle enterprises with new APED capabilities and involve the enterprises in the scientific and educational projects implemented through the Nuclear Technologies and Non-Proliferation Center. This paper describes the development of the MPC&A engineering degree program and future goals of TPU in the field of nonproliferation education.

Boiko, Vladimir I.; Demyanyuk, Dmitry G.; Silaev, Maxim E.; Duncan, Cristen L.; Heinberg, Cynthia L.; Killinger, Mark H.; Goodey, Kent O.; Butler, Gilbert W.

2009-10-06T23:59:59.000Z

217

Nematic State of Pnictides Stabilized by Interplay between Spin, Orbital, and Lattice Degrees of Freedom  

Science Conference Proceedings (OSTI)

The nematic state of the iron-based superconductors is studied in the undoped limit of the three-orbital (xz, yz, xy) spin-fermion model via the introduction of lattice degrees of freedom. Monte Carlo simulations show that in order to stabilize the experimentally observed lattice distortion and nematic order, and to reproduce photoemission experiments, both the spin-lattice and orbital-lattice couplings are needed. The interplay between their respective coupling strengths regulates the separation between the structural and Ne el transition temperatures. Experimental results for the temperature dependence of the resistivity anisotropy and the angle-resolved photoemission orbital spectral weight are reproduced by the present numerical simulations.

Liang, Shuhua [ORNL; Moreo, Adriana [ORNL; Dagotto, Elbio R [ORNL

2013-01-01T23:59:59.000Z

218

Trends in Heating and Cooling Degree Days: Implications for Energy Demand Issues  

Reports and Publications (EIA)

Weather-related energy use, in the form of heating, cooling, and ventilation, accounted for more than 40 percent of all delivered energy use in residential and commercial buildings in 2006. Given the relatively large amount of energy affected by ambient temperature in the buildings sector, EIA has reevaluated what it considers normal weather for purposes of projecting future energy use for heating, cooling, and ventilation. In AEO2008, estimates of normal heating and cooling degree-days are based on the population-weighted average for the 10-year period from 1997 through 2006.

2011-02-07T23:59:59.000Z

219

Trends in Heating and Cooling Degree Days: Implications for Energy Demand Issues (released in AEO2008)  

Reports and Publications (EIA)

Weather-related energy use, in the form of heating, cooling, and ventilation, accounted for more than 40 percent of all delivered energy use in residential and commercial buildings in 2006. Given the relatively large amount of energy affected by ambient temperature in the buildings sector, EIA has reevaluated what it considers normal weather for purposes of projecting future energy use for heating, cooling, and ventilation. In AEO2008, estimates of normal heating and cooling degree-days are based on the population-weighted average for the 10-year period from 1997 through 2006.

Information Center

2008-09-24T23:59:59.000Z

220

Solar abundances and helioseismology: fine structure spacings and separation ratios of low-degree p modes  

E-Print Network (OSTI)

We have used 4752 days of data collected by the Birmingham Solar-Oscillations Network (BiSON) to determine very precise oscillation frequencies of acoustic low-degree modes that probe the solar core. We compare the fine (small frequency) spacings and frequency separation ratios formed from these data with those of different solar models. We find that models constructed with low metallicity are incompatible with the observations. The results provide strong support for lowering the theoretical uncertainties on the neutrino fluxes. These uncertainties had recently been raised due to the controversy over the solar abundances.

Sarbani Basu; William J. Chaplin; Yvonne Elsworth; Roger New; Aldo M. Serenelli; Graham A. Verner

2006-10-02T23:59:59.000Z

Note: This page contains sample records for the topic "degrees fahrenheit high" 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

The effect of water vapor on the corrosion of carbon steel at 65{degree}C  

SciTech Connect

AISI 1020 carbon steel was exposed to air at various relative humidities at 65{degrees}C. A ``critical relative humidity`` (CRH) of 75--85% was determined. The CRH is the transitional relative humidity where oxidation/corrosion changes from dry oxidation to aqueous film electrochemical corrosion. Short term testing suggests that aqueous film electrochemical corrosion results in the formation of an inner oxide of Fe{sub 3}O{sub 4}, and an outer oxide of a powdery Fe{sub 2}O{sub 3} and/or Fe{sub 2}O{sub 3}{center_dot}xH{sub 2}O.

Gdowski, G.E.; Estill, J.C.

1995-11-07T23:59:59.000Z

222

Department of Chemical and Biological Engineering Information for potential graduate applicants who do not have a degree in Chemical  

E-Print Network (OSTI)

Department of Chemical and Biological Engineering Information for potential graduate applicants who do not have a degree in Chemical Engineering The department of chemical and biological engineering frequently admits applicants who have a bachelor's degree in a field other than chemical engineering. Many

223

B.S. in Chemical Science The Chemical Science degree is designed for students who plan programs in fields  

E-Print Network (OSTI)

B.S. in Chemical Science The Chemical Science degree is designed for students who plan programs, and Geology. In addition, Chemical Science can be a valuable major for those interested in business and law. This degree is not intended as a chemical preparation for people who wish to do work directly in Chemistry

Weston, Ken

224

Thermal fuse for high-temperature batteries  

SciTech Connect

A thermal fuse, preferably for a high-temperature battery, comprising leads and a body therebetween having a melting point between approximately 400.degree. C. and 500.degree. C. The body is preferably an alloy of Ag--Mg, Ag--Sb, Al--Ge, Au--In, Bi--Te, Cd--Sb, Cu--Mg, In--Sb, Mg--Pb, Pb--Pd, Sb--Zn, Sn--Te, or Mg--Al.

Jungst, Rudolph G. (Albuquerque, NM); Armijo, James R. (Albuquerque, NM); Frear, Darrel R. (Austin, TX)

2000-01-01T23:59:59.000Z

225

Global Patterns of Carbon Dioxide Emissions from Soils on a 0.5 Degree Grid  

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

Global Patterns of Carbon Dioxide Emissions from Soils on a 0.5 Degree Grid Global Patterns of Carbon Dioxide Emissions from Soils on a 0.5 Degree Grid Cell Basis (DB-1015) DOI: 10.3334/CDIAC/lue.db1015 This data has been updated. Please see NDP-081. Contributed by: James W. Raich 1 and Christopher S. Potter2 1Department of Botany Iowa State University Ames, IA 50011 USA Email: jraich@iastate.edu 2NASA Ames Research Center MS 242-2 Moffett Field, CA 94035 USA Email: cpotter@gaia.arc.nasa.gov Prepared by L.M. Olsen. Carbon Dioxide Information Analysis Center Date Published: March, 1996 (Revised for the web: 2002) The Carbon Dioxide Information Analysis Center is a part of the Environmental Sciences Division of the OAK RIDGE NATIONAL LABORATORY (ORNL) and is located in Oak Ridge, Tennessee 37831-6290. The ORNL is managed by University of Tennessee-Battelle, LLC for the U.S. DEPARTMENT OF ENERGY

226

Image system for three dimensional, 360 DEGREE, time sequence surface mapping of moving objects  

SciTech Connect

A three-dimensional motion camera system comprises a light projector placed between two synchronous video cameras all focused on an object-of-interest. The light projector shines a sharp pattern of vertical lines (Ronchi ruling) on the object-of-interest that appear to be bent differently to each camera by virtue of the surface shape of the object-of-interest and the relative geometry of the cameras, light projector and object-of-interest Each video frame is captured in a computer memory and analyzed. Since the relative geometry is known and the system pre-calibrated, the unknown three-dimensional shape of the object-of-interest can be solved for by matching the intersections of the projected light lines with orthogonal epipolar lines corresponding to horizontal rows in the video camera frames. A surface reconstruction is made and displayed on a monitor screen. For 360.degree. all around coverage of theobject-of-interest, two additional sets of light projectors and corresponding cameras are distributed about 120.degree. apart from one another.

Lu, Shin-Yee (Pleasanton, CA)

1998-01-01T23:59:59.000Z

227

Image system for three dimensional, 360{degree}, time sequence surface mapping of moving objects  

DOE Patents (OSTI)

A three-dimensional motion camera system comprises a light projector placed between two synchronous video cameras all focused on an object-of-interest. The light projector shines a sharp pattern of vertical lines (Ronchi ruling) on the object-of-interest that appear to be bent differently to each camera by virtue of the surface shape of the object-of-interest and the relative geometry of the cameras, light projector and object-of-interest. Each video frame is captured in a computer memory and analyzed. Since the relative geometry is known and the system pre-calibrated, the unknown three-dimensional shape of the object-of-interest can be solved for by matching the intersections of the projected light lines with orthogonal epipolar lines corresponding to horizontal rows in the video camera frames. A surface reconstruction is made and displayed on a monitor screen. For 360{degree} all around coverage of the object-of-interest, two additional sets of light projectors and corresponding cameras are distributed about 120{degree} apart from one another. 20 figs.

Lu, S.Y.

1998-12-22T23:59:59.000Z

228

Aluminum hydrolysis constants to 250[degrees]C from boehmite solubility measurements  

SciTech Connect

Boehmite solubilities were measured at 150, 200, and 250[degrees]C at pH values from 1 to 10 at 100 bars total pressure and used to determine the stability constants for the mononuclear aluminum hydroxide complexes Al(OH)[sup 2+], Al(OH)[sup +][sub 2], Al(OH)[sub 0][sub 3], AL(OH)[sup -][sub 4], and the solubility product of boehmite. Buffer solutions of HCl-KCl, acetic acid-sodium acetate, sodium bicarbonate-carbonic acid, and boric acid-potassium hydroxide were used to control pH. Our solubility data are in good agreement with boehmite solubility measurements in perchloric acid and sodium hydroxide solutions reported by KUYUNKO et al. (1983). The stability constants for the aluminum hydroxide species were determined from the solubility data using a Ridge regression technique. The results indicate that aluminum ion hydrolysis becomes stronger at higher temperatures, and the stability field of the neutral complex Al(OH)[sup 0][sub 3] becomes larger. The results are used to provide a set of equilibrium constants for aluminum hydroxide complex formation and boehmite hydrolysis from 0-300[degrees]C.

Bourcier, W.L.; Knauss, K.G.; Jackson, K.J. (Lawrence Livermore National Lab., CA (United States))

1993-02-01T23:59:59.000Z

229

QCD Equation of State From a Chiral Hadronic Model Including Quark Degrees of Freedom  

E-Print Network (OSTI)

This work presents an effective model for strongly interacting matter and the QCD equation of state (EoS). The model includes both hadron and quark degrees of freedom and takes into account the transition of chiral symmetry restoration as well as the deconfinement phase transition. At low temperatures $T$ and baryonic densities $\\rho_B$ a hadron resonance gas is described using a SU(3)-flavor sigma-omega model and a quark phase is introduced in analogy to PNJL models for higher $T$ and $\\rho_B$. In this way, the correct asymptotic degrees of freedom are used in a wide range of $T$ and $\\rho_B$. Here, results of this model concerning the chiral and deconfinement phase transitions and thermodynamic model properties are presented. Large hadron resonance multiplicities in the transition region emphasize the importance of heavy-mass resonance states in this region and their impact on the chiral transition behavior. The resulting phase diagram of QCD matter at small chemical potentials is in line with latest lattice QCD and thermal model results.

Philip Rau; Jan Steinheimer; Stefan Schramm; Horst Stöcker

2013-06-14T23:59:59.000Z

230

High efficiency photoionization detector  

DOE Patents (OSTI)

A high efficiency photoionization detector using tetraaminoethylenes in a gaseous state having a low ionization potential and a relative photoionization cross section which closely matches the emission spectrum of xenon gas. Imaging proportional counters are also disclosed using the novel photoionization detector of the invention. The compound of greatest interest is TMAE which comprises tetrakis(dimethylamino)ethylene which has a measured ionization potential of 5.36.+-.0.02 eV, and a vapor pressure of 0.35 torr at 20.degree. C.

Anderson, David F. (3055 Trinity, Los Alamos, NM 87544)

1984-01-01T23:59:59.000Z

231

Obliquity factors for {sup 60}Co and 4, 10, and 18 MV x rays for concrete, steel, and lead and angles of incidence between 0{degrees} and 70{degrees}  

SciTech Connect

The attenuation of {sup 60}Co gamma rays and photons of 4, 10, and 18 MV x-ray beams by concrete, steel, and lead has been studied using the Monte Carlo technique for angles of incidence 0{degrees}, 30{degrees}, 45{degrees}, 60{degrees}, and 70{degrees}. Transmission factors have been determined down to < 2 x 10{sup {minus}5} in all cases. The results show that deviation from the obliquity factor increases with angle but is not significant for angles {le} 45{degrees}. AT 70{degrees} angle of incidence and a transmission factor of 10{sup {minus}5}, the obliquity factor varies between 1.2 and 1.9 for concrete, between 1.4 and 1.7 for steel, and between 1.4 and 1.5 for lead for the range of energies investigated. This amounts to an additional 86 and 50 cm of concrete, 25 and 23 cm of steel, and 8 and 14 cm of lead for {sup 60}Co and 18 MV x rays, respectively. The results for {sup 60}Co is concrete and lead are in good agreement with previously published experimental work. Fits to the data using mathematical models allow reconstruction of all data curves to better than 1% on average and 7% in the worst single case. 9 refs., 14 figs., 6 tabs.

Biggs, P.J. [Harvard Medical School, Boston, MA (United States)

1996-04-01T23:59:59.000Z

232

HIGHLY AUTOMATED MACROMOLECULAR  

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

AUTOMATED MACROMOLECULAR AUTOMATED MACROMOLECULAR CRYSTALLOGRAPHY BEAMLINE (AMX) Group Leader: Dieter Schneider Proposal Team: M. Allaire 1 , L. Berman 1 , M. Chance 2 , W. Hendrickson 3 , A. Héroux 1 , J. Jakoncic 1 , A. Orville 1 , H. Robinson 1 , D. Schneider 1 , W. Shi 2 , A. Soares 1 , V. Stojanoff 1 , R. Sweet 1 1 Brookhaven National Laboratory, 2 Case Western Reserve University, 3 Columbia University MISSION APPLICATIONS AND CAPABILITIES ADDITIONAL INFORMATION * AMX at NSLS-II will provide structural biologists with ready access to an advanced macromolecular crystallography (MX) beamline for the elucidation of structure and function of macromolecular complexes. * Its high flux, tunable energy, and natively small focal spot will make it a crystallographer's preferred beamline. * Its high degree of automation will provide a high throughput

233

Gaguk Zakaria received his Stratum One (Bachelor of Science) degree in Electrical Engineering in 1985 from Bandung Institute of Technology, Bandung, Indonesia, and his  

E-Print Network (OSTI)

Engineering in 1985 from Bandung Institute of Technology, Bandung, Indonesia, and his Master of Science degree

Beex, A. A. "Louis"

234

High power, high beam quality regenerative amplifier  

DOE Patents (OSTI)

A regenerative laser amplifier system generates high peak power and high energy per pulse output beams enabling generation of X-rays used in X-ray lithography for manufacturing integrated circuits. The laser amplifier includes a ring shaped optical path with a limited number of components including a polarizer, a passive 90 degree phase rotator, a plurality of mirrors, a relay telescope, and a gain medium, the components being placed close to the image plane of the relay telescope to reduce diffraction or phase perturbations in order to limit high peak intensity spiking. In the ring, the beam makes two passes through the gain medium for each transit of the optical path to increase the amplifier gain to loss ratio. A beam input into the ring makes two passes around the ring, is diverted into an SBS phase conjugator and proceeds out of the SBS phase conjugator back through the ring in an equal but opposite direction for two passes, further reducing phase perturbations. A master oscillator inputs the beam through an isolation cell (Faraday or Pockels) which transmits the beam into the ring without polarization rotation. The isolation cell rotates polarization only in beams proceeding out of the ring to direct the beams out of the amplifier. The diffraction limited quality of the input beam is preserved in the amplifier so that a high power output beam having nearly the same diffraction limited quality is produced.

Hackel, Lloyd A. (Livermore, CA); Dane, Clifford B. (Livermore, CA)

1993-01-01T23:59:59.000Z

235

High power, high beam quality regenerative amplifier  

DOE Patents (OSTI)

A regenerative laser amplifier system generates high peak power and high energy per pulse output beams enabling generation of X-rays used in X-ray lithography for manufacturing integrated circuits. The laser amplifier includes a ring shaped optical path with a limited number of components including a polarizer, a passive 90 degree phase rotator, a plurality of mirrors, a relay telescope, and a gain medium, the components being placed close to the image plane of the relay telescope to reduce diffraction or phase perturbations in order to limit high peak intensity spiking. In the ring, the beam makes two passes through the gain medium for each transit of the optical path to increase the amplifier gain to loss ratio. A beam input into the ring makes two passes around the ring, is diverted into an SBS phase conjugator and proceeds out of the SBS phase conjugator back through the ring in an equal but opposite direction for two passes, further reducing phase perturbations. A master oscillator inputs the beam through an isolation cell (Faraday or Pockels) which transmits the beam into the ring without polarization rotation. The isolation cell rotates polarization only in beams proceeding out of the ring to direct the beams out of the amplifier. The diffraction limited quality of the input beam is preserved in the amplifier so that a high power output beam having nearly the same diffraction limited quality is produced.

Hackel, L.A.; Dane, C.B.

1993-08-24T23:59:59.000Z

236

A Second Examination of Fragments of Unirradiated and Irradiated CANDU Fuel, and Irradiated LWR Fuel, Oxidized in Air at 130 Degrees Centigrade and 170 Degrees Centigrade for Approximately One Thousand Days  

Science Conference Proceedings (OSTI)

Thisreport documents the examination of unclad fragments of unirradiated CANDU fuel, and irradiated LWR fuel, after approximately 2.8 years of oxidation in air at 130 degrees Centigrade and 170 degrees Centigrade. During oxidation, the various fuel specimens were isolated in separate vials, which were designed to permit free access of air, while preventing cross-contamination. Two specimens of each fuel type were recovered for examination from each experiment. The irradiated fuel specimens were weighed a...

1999-10-01T23:59:59.000Z

237

High School  

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

High School Please click on the title for more information about each program. Nano*High Nano High Saturday presentations for Bay Area high school students Science Bowl Science...

238

High Temperature Phase Change Materials for Thermal Energy Storage Applications: Preprint  

DOE Green Energy (OSTI)

To store thermal energy, sensible and latent heat storage materials are widely used. Latent heat thermal energy storage (TES) systems using phase change materials (PCM) are useful because of their ability to charge and discharge a large amount of heat from a small mass at constant temperature during a phase transformation. Molten salt PCM candidates for cascaded PCMs were evaluated for the temperatures near 320 degrees C, 350 degrees C, and 380 degrees C. These temperatures were selected to fill the 300 degrees C to 400 degrees C operating range typical for parabolic trough systems, that is, as one might employ in three-PCM cascaded thermal storage. Based on the results, the best candidate for temperatures near 320 degrees C was the molten salt KNO3-4.5wt%KCl. For the 350 degrees C and 380 degrees C temperatures, the evaluated molten salts are not good candidates because of the corrosiveness and the high vapor pressure of the chlorides.

Gomez, J.; Glatzmaier, G. C.; Starace, A.; Turchi, C.; Ortega, J.

2011-08-01T23:59:59.000Z

239

Skillful Seasonal Predictions of Boreal Winter Accumulated Heating Degree-Days and Relevance for the Weather Derivative Market  

Science Conference Proceedings (OSTI)

It is demonstrated that boreal winter accumulated heating degree-days, a weather derivative product that is frequently demanded by energy suppliers (among others), can be skillfully predicted with a lead time of 1 month, that is, at the beginning ...

S. Brands

2013-06-01T23:59:59.000Z

240

Projecting Monthly Natural Gas Sales for Space Heating Using a Monthly Updated Model and Degree-days from Monthly Outlooks  

Science Conference Proceedings (OSTI)

The problem of projecting monthly residential natural gas sales and evaluating interannual changes in demand is investigated using a linear regression model adjusted monthly. with lagged monthly heating degree-days as the independent variable. ...

Richard L. Lehman; Henry E. Warren

1994-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "degrees fahrenheit high" 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

Low-Order Spectral Analysis of the Kirchhoff Matrix for a Probabilistic Graph With a Prescribed Expected Degree Sequence  

E-Print Network (OSTI)

We study the eigenvalue distribution of the Kirchhoff matrix of a large-scale probabilistic network with a prescribed expected degree sequence. This spectrum plays a key role in many dynamical and structural network problems ...

Preciado, Victor M.

242

Professional Master's Degree in Wetlands Conservation This program is designed for students who want professional training in the  

E-Print Network (OSTI)

want professional training in the multidisciplinary field of wetlands science and management Management POLSCI 786 Policy Evaluation POLSCI 784 Environmental Policy POLSCI 787 Policy Analysis & ChoiceProfessional Master's Degree in Wetlands Conservation This program is designed for students who

Schweik, Charles M.

243

The SCUBA HAlf Degree Extragalactic Survey (SHADES) - III. Identification of radio and mid-infrared counterparts to submillimetre galaxies  

E-Print Network (OSTI)

Determining an accurate position for a submm galaxy (SMG) is the crucial step that enables us to move from the basic properties of an SMG sample - source counts and 2-D clustering - to an assessment of their detailed, multi-wavelength properties, their contribution to the history of cosmic star formation and their links with present-day galaxy populations. In this paper, we identify robust radio and/or IR counterparts, and hence accurate positions, for over two thirds of the SCUBA HAlf-Degree Extragalactic Survey (SHADES) Source Catalogue, presenting optical, 24-um and radio images of each SMG. Observed trends in identification rate have given no strong rationale for pruning the sample. Uncertainties in submm position are found to be consistent with theoretical expectations, with no evidence for significant additional sources of error. Employing the submm/radio redshift indicator, via a parameterisation appropriate for radio-identified SMGs with spectroscopic redshifts, yields a median redshift of 2.8 for the radio-identified subset of SHADES, somewhat higher than the median spectroscopic redshift. We present a diagnostic colour-colour plot, exploiting Spitzer photometry, in which we identify regions commensurate with SMGs at very high redshift. Finally, we find that significantly more SMGs have multiple robust counterparts than would be expected by chance, indicative of physical associations. These multiple systems are most common amongst the brightest SMGs and are typically separated by 2-6", or 15-50/(sin i) kpc at z ~ 2, consistent with early bursts seen in merger simulations.

R. J. Ivison; T. R. Greve; J. S. Dunlop; J. A. Peacock; E. Egami; Ian Smail; E. Ibar; E. van Kampen; I. Aretxaga; T. Babbedge; A. D. Biggs; A. W. Blain; S. C. Chapman; D. L. Clements; K. Coppin; D. Farrah; M. Halpern; D. H. Hughes; M. J. Jarvis; T. Jenness; J. R. Jones; A. M. J. Mortier; S. Oliver; C. Papovich; P. G. Perez-Gonzalez; A. Pope; S. Rawlings; G. H. Rieke; M. Rowan-Robinson; R. S. Savage; D. Scott; M. Seigar; S. Serjeant; C. Simpson; J. A. Stevens; M. Vaccari; J. Wagg; C. J. Willott

2007-02-20T23:59:59.000Z

244

Examination of a Standardized Test for Evaluating the Degree of Cure of EVA Encapsulation (Presentation)  

Science Conference Proceedings (OSTI)

The curing of cross-linkable encapsulation is a critical consideration for photovoltaic (PV) modules manufactured using a lamination process. Concerns related to ethylene-co-vinyl acetate (EVA) include the quality (e.g., expiration and uniformity) of the films or completion (duration) of the cross-linking of the EVA within a laminator. Because these issues are important to both EVA and module manufacturers, an international standard has recently been proposed by the Encapsulation Task-Group within the Working Group 2 (WG2) of the International Electrotechnical Commission (IEC) Technical Committee 82 (TC82) for the quantification of the degree of cure for EVA encapsulation. The present draft of the standard calls for the use of differential scanning calorimetry (DSC) as the rapid, enabling secondary (test) method. Both the residual enthalpy- and melt/freeze-DSC methods are identified. The DSC methods are calibrated against the gel content test, the primary (reference) method. Aspects of other established methods, including indentation and rotor cure metering, were considered by the group. Key details of the test procedure will be described.

Miller, D.; Wohlgemuth, J.; Gu, X.; Haldeman, S.; Hidalgo, M.; Malguth, E.; Reid, C.; Shioda, T.; Schulze, S.; Wang, Z.

2013-11-01T23:59:59.000Z

245

Revealing the Degree of Magnetic Frustration by Non-Magnetic Impurities  

SciTech Connect

Imaging the magnetic fields around a non-magnetic impurity can provide a clear benchmark for quantifying the degree of magnetic frustration. Focusing on the strongly frustrated J{sub 1}-J{sub 2} model and the spatially anisotropic J{sub 1a}-J{sub 1b}-J{sub 2} model, very distinct low energy behaviors reflect different levels of magnetic frustration. In the J{sub 1}-J{sub 2} model, bound magnons appear trapped near the impurity in the ground state and strongly reduce the ordered moments for sites proximal to the impurity. In contrast, local moments in the J{sub 1a}-J{sub 1b}-J{sub 2} model are enhanced on the impurity neighboring sites. These theoretical predictions can be probed by experiments such as nuclear magnetic resonance and scanning tunneling microscopy, and the results can elucidate the role of frustration in antiferromagnets and help narrow the possible models to understand magnetism in the iron pnictdies.

Not Available

2011-08-12T23:59:59.000Z

246

Test beam results on the Proton Zero Degree Calorimeter for the ALICE experiment  

Science Conference Proceedings (OSTI)

The proton Zero Degree Calorimeter (ZP) for the ALICE experiment will measure the energy of the spectator protons in heavy ion collisions at the CERN LHC. Since all the spectator protons have the same energy, the calorimeter's response is proportional to their number, providing a direct information on the centrality of the collision. The ZP is a spaghetti calorimeter, which collects and measures the Cherenkov light produced by the shower particles in silica optical fibers embedded in a brass absorber. The details of its construction will be shown. The calorimeter was tested at the CERN SPS using pion and electron beams with momenta ranging from 50 to 200 GeV/c. The response of the calorimeter and its energy resolution have been studied as a function of the beam energy. Also, the signal uniformity and a comparison between the transverse profile of the hadronic and electromagnetic shower are presented. Moreover, the differences between the calorimeter's responses to protons and pions of the same energy have been investigated, exploiting the proton contamination in the positive pion beams.

Arnaldi, R.; Chiavassa, E.; De Marco, N.; Ferretti, A.; Gagliardi, M.; Gallio, M.; Gemme, R.; Mereu, P.; Musso, A.; Oppedisano, C.; Piccotti, A.; Poggio, F.; Scomparin, E.; Stocco, D.; Vercellin, E.; Yermia, F. [Universita di Torino, Turin (Italy); INFN, Turin (Italy); Cicalo, C.; De Falco, A.; Floris, M.; Masoni, A. [Universita di Cagliari, Cagliari (Italy); INFN, Cagliari (Italy)] (and others)

2006-10-27T23:59:59.000Z

247

Nonlinear normal modes of a two degree of freedom oscillator with a bilateral elastic stop  

E-Print Network (OSTI)

A study of the non linear modes of a two degree of freedom mechanical system with bilateral elastic stop is considered. The issue related to the non-smoothness of the impact force is handled through a regularization technique. In order to obtain the Nonlinear Normal Mode (NNM), the harmonic balance method with a large number of harmonics, combined with the asymptotic numerical method, is used to solve the regularized problem. These methods are present in the software "package" MANLAB. The results are validated from periodic orbits obtained analytically in the time domain by direct integration of the non regular problem. The two NNMs starting respectively from the two linear normal modes of the associated underlying linear system are discussed. The energy-frequency plot is used to present a global vision of the behavior of the modes. The dynamics of the modes are also analyzed comparing each periodic orbits and modal lines. The first NNM shows an elaborate dynamics with the occurrence of multiple impacts per period. On the other hand, the second NNM presents a more simple dynamics with a localization of the displacement on the first mass.

El Hadi Moussi; Sergio Bellizzi; Bruno Cochelin; I. Nistor

2013-02-04T23:59:59.000Z

248

Design of JET ELM control coils for operation at 350 degrees C  

Science Conference Proceedings (OSTI)

A study has confirmed the feasibility of designing, fabricating and installing resonant magnetic field perturbation (RMP) coils in JET(1) with the objective of controlling edge localized modes (ELM). A system of two rows of in-vessel coils, above the machine midplane, has been chosen as it not only can investigate the physics of and achieve the empirical criteria for ELM suppression, but also permits variation of the spectra allowing for comparison with other experiments. These coils present several engineering challenges. Conditions in JET necessitate the installation of these coils via remote handling, which will impose weight, dimensional and logistical limitations. And while the encased coils are designed to be conventionally wound and bonded, they will not have the usual benefit of active cooling. Accordingly, coil temperatures are expected to reach 350 degrees C during bakeout as well as during plasma operations. These elevated temperatures are beyond the safe operating limits of conventional OFHC copper and the epoxies that bond and insulate the turns of typical coils. This has necessitated the use of an alternative copper alloy conductor C18150 (CuCrZr). More importantly, an alternative to epoxy had to be found. An R&D program was initiated to find the best available insulating and bonding material. The search included polyimides and ceramic polymers. The scope and status of this R&D program, as well as the critical engineering issues encountered to date are reviewed and discussed.

Zatz, I J [Princeton Plasma Physics Laboratory (PPPL); Baker, R [Association EURATOM-CCFE, Abingdon, UK; Brooks, A. [Princeton Plasma Physics Laboratory (PPPL); Cole, Michael J [ORNL; Neilson, G. H. [Princeton Plasma Physics Laboratory (PPPL)

2011-01-01T23:59:59.000Z

249

Examination of a Standardized Test for Evaluating the Degree of Cure of EVA Encapsulation: Preprint  

DOE Green Energy (OSTI)

The curing of cross-linkable encapsulation is a critical consideration for photovoltaic (PV) modules manufactured using a lamination process. Concerns related to ethylene-co-vinyl acetate (EVA) include the quality (e.g., expiration and uniformity) of the films or completion (duration) of the cross-linking of the EVA within a laminator. Because these issues are important to both EVA and module manufacturers, an international standard has recently been proposed by the Encapsulation Task-Group within the Working Group 2 (WG2) of the International Electrotechnical Commission (IEC) Technical Committee 82 (TC82) for the quantification of the degree of cure for EVA encapsulation. The present draft of the standard calls for the use of differential scanning calorimetry (DSC) as the rapid, enabling secondary (test) method. Both the residual enthalpy- and melt/freeze-DSC methods are identified. The DSC methods are calibrated against the gel content test, the primary (reference) method. Aspects of other established methods, including indentation and rotor cure metering, were considered by the group. Key details of the test procedure will be described.

Miller, D. C.; Gu, X.; Haldenman, S.; Hidalgo, M.; Malguth, E.; Reid, C. G.; Shioda, T.; Schulze, S. H.; Wang, Z. Y.; Wohlgemuth, J. H.

2013-11-01T23:59:59.000Z

250

Landscape Assessment of the Degree of Protection of Alaska's Terrestrial Biodiversity  

E-Print Network (OSTI)

of caimivores,and transformation of wildlife habitat to farmland, cities, and suburbs have permanently re- duced interior rivers (Coates 1991) or using nuclear explosions to carve high Arctic harbors (O'Neill 1994).Less

Duffy, David Cameron

251

Overcoming Solubility Limitations to Zinc Addition in Pressurized Water Reactors  

Science Conference Proceedings (OSTI)

Zinc addition to the reactor coolant system (RCS) of a pressurized water reactor (PWR) is being used for dose rate reduction and primary water stress corrosion cracking (PWSCC) mitigation. This report summarizes results of aqueous zinc oxide solubility experiments from 150 to 350 degrees Celsius (302 to 662 degrees Fahrenheit). These experiments were performed to develop quantitative models of solubility and aqueous-phase solute speciation behavior as functions of temperature, pH, and solution compositio...

2001-11-29T23:59:59.000Z

252

Non-uniform Subdivision for B-splines of Arbitrary Degree. Computer Aided Geometric DesignTo appear  

E-Print Network (OSTI)

We present an efficient algorithm for subdividing non-uniform B-splines of arbitrary degree in a manner similar to the Lane-Riesenfeld subdivision algorithm for uniform Bsplines of arbitrary degree. Our algorithm consists of doubling the control points followed by d rounds of non-uniform averaging similar to the d rounds of uniform averaging in the Lane-Riesenfeld algorithm for uniform B-splines of degree d. However, unlike the Lane-Riesenfeld algorithm which follows most directly from the continuous convolution formula for the uniform B-spline basis functions, our algorithm follows naturally from blossoming. We show that our knot insertion method is simpler and more efficient than previous knot insertion algorithms for non-uniform B-splines. 1.

S. Schaefer; R. Goldman

2008-01-01T23:59:59.000Z

253

FAINT EXTENDED OH EMISSION FROM THE LOCAL INTERSTELLAR MEDIUM IN THE DIRECTION l Almost-Equal-To 108 Degree-Sign , b Almost-Equal-To 5 Degree-Sign  

Science Conference Proceedings (OSTI)

We have mapped faint 1667 OH line emission (T{sub A} Almost-Equal-To 20-40 mK in our Almost-Equal-To 30' beam) along many lines of sight in the Galaxy covering an area of Almost-Equal-To 4 Degree-Sign Multiplication-Sign 4 Degree-Sign in the general direction of l Almost-Equal-To 108 Degree-Sign , b Almost-Equal-To 5 Degree-Sign . The OH emission is widespread, similar in extent to the local H I (r {approx}< 2 kpc) both in space and in velocity. The OH profile amplitudes show a good general correlation with those of H I in spectral channels of Almost-Equal-To 1 km s{sup -1}; this relation is described by T{sub A} (OH) Almost-Equal-To 1.50 Multiplication-Sign 10{sup -4} T{sub B} (H I) for values of T{sub B} (H I) {approx}< 60-70 K. Beyond this the H I line appears to 'saturate', and few values are recorded above Almost-Equal-To 90 K. However, the OH brightness continues to rise, by a further factor Almost-Equal-To 3. The OH velocity profiles show multiple features with widths typically 2-3 km s{sup -1}, but less than 10% of these features are associated with CO(1-0) emission in existing surveys of the area smoothed to comparable resolution.

Allen, Ronald J. [Space Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD 21218 (United States); Rodriguez, Monica Ivette [Instituto de Astrofisica de Andalucia, P.O. Box 3004, 18080 Granada (Spain); Black, John H.; Booth, Roy S., E-mail: rjallen@stsci.edu, E-mail: mrm@iaa.es, E-mail: John.Black@chalmers.se, E-mail: rbooth@ska.ac.za [Onsala Space Observatory, Onsala SE-439 92 (Sweden)

2012-04-15T23:59:59.000Z

254

Main Screen: students and advisors will use during the advising engagement and is prepopulated with degree plans per major. Sequences plan by terms; term courses populated by degree plans per each major.  

E-Print Network (OSTI)

by terms; term courses populated by degree plans per each major. Notes: helpful hints about that specific and click OK to return to Main Screen. Lock: locks that course into that term: a course can be locked.e. bowling, Tai Chi, allows student to select that course to take that term. Refresh Suggestions: · Sets

Barrash, Warren

255

SCHOOL OF INDUSTRIAL ENGINEERING AND MANAGEMENT Name: _____________________ MS DEGREE PROGRAM --Options and Specialty Areas  

E-Print Network (OSTI)

5503 5503 5303 5123 5303 CIM High Vol. 5203 5203 5633 5603 5313 5133 5313 CIM L V l5203 5203 5633 5603 5313 5133 5313 CIM Low Vol. 5363 5413 5713 5613 5363 5163 5363 Mgmt. Of Cellular Mfg. Sys. 5613 5503

Balasundaram, Balabhaskar "Baski"

256

What are the mechanical degrees of freedom of the Dirac field?  

Science Conference Proceedings (OSTI)

The study of the behavior of quantum fields at very high energies, possibly at the Planck scale, is an open problem today. Recent attempts by Hossain et al explore a polymer quantized scalar field in which the canonical algebra of the tower of oscillators making up the field is replaced by the polymer one, inspired in loop quantum gravity. A smoking gun of such a quantization appears in the form of deformed dispersion relations at very high energies and hence in the corresponding propagator. In this work we provide some steps towards the generalization of these results to a Dirac field. In particular we use a Fourier decomposition to look for the analogue of the oscillators of the scalar field. It turns out the corresponding energy spectrum can be intepreted as containing for each mode the contribution of four Fermi oscillators.

Garcia-Chung, Angel A.; Morales-Tecotl, Hugo A. [Departamento de Fisica, Universidad Autonoma Metropolitana Iztapalapa, San Rafael Atlixco 186, CP 09340, Mexico D.F (Mexico)

2012-08-24T23:59:59.000Z

257

Maximum Freezing Degree-Days as a Winter Severity Index for the Great Lakes, 1897–1977  

Science Conference Proceedings (OSTI)

General regional and temporal trends in maximum freezing degree-days (FDD's) are identified for the shore zone of the Great Lakes Basin for the 80 winter periods 1897–1977. The cumulative frequency distribution of FDD's at cub of 25 locations is ...

Raymond A. Assel

1980-09-01T23:59:59.000Z

258

arXiv:submit/0451583[physics.gen-ph]8Apr2012 Including Nuclear Degrees of Freedom in a Lattice  

E-Print Network (OSTI)

arXiv:submit/0451583[physics.gen-ph]8Apr2012 Including Nuclear Degrees of Freedom in a Lattice and Engineering, University of Engineering and Technology. Lahore, Pakistan Abstract. Motivated by many condensed matter and nuclear systems are described initially on the same footing. Since it may be possible

Williams, Brian C.

259

Development of Advanced Flow-Through External Pressure-Balanced Reference Electrode for Temperatures up to 400 degrees C.  

Science Conference Proceedings (OSTI)

Development of an advanced flow-through external pressure-balanced reference electrode opens the door for more accurate measurements of corrosion potential, redox potential, and pH in power plant waters at temperatures up to 400 degrees C. Such measurements allow a more accurate assessment of an environment's corrosivity and promote more effective corrosion control.

1998-01-29T23:59:59.000Z

260

arXiv:astro-ph/0410680v227Jan2005 Crossing the Phantom Divide: Dark Energy Internal Degrees of Freedom  

E-Print Network (OSTI)

arXiv:astro-ph/0410680v227Jan2005 Crossing the Phantom Divide: Dark Energy Internal Degrees Fermi Institute, University of Chicago, Chicago IL 60637 Dark energy constraints have forced viable that evolves across the phantom divide set by . Naively, crossing this divide makes the dark energy

Hu, Wayne

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261

Optimal two-degree-of-freedom fuzzy control for locomotion control of a hydraulically actuated hexapod robot  

Science Conference Proceedings (OSTI)

Locomotion control of legged robots is a very challenging task because very accurate foot trajectory tracking control is necessary for stable walking. An electro-hydraulically actuated walking robot has sufficient power to walk on rough terrain and carry ... Keywords: Hydraulic actuator, One-step-ahead fuzzy control, Robot locomotion, Six-legged walking robot, Two-degree-of-freedom fuzzy control

Ranjit Kumar Barai; Kenzo Nonami

2007-04-01T23:59:59.000Z

262

Table Definitions, Sources, and Explanatory Notes  

Gasoline and Diesel Fuel Update (EIA)

Supplemental Supplies Supplemental Supplies Definitions Key Terms Definition Biomass Gas A medium Btu gas containing methane and carbon dioxide, resulting from the action of microorganisms on organic materials such as a landfill. Blast-furnace Gas The waste combustible gas generated in a blast furnace when iron ore is being reduced with coke to metallic iron. It is commonly used as a fuel within steel works. British Thermal Unit (Btu) The quantity of heat required to raise the temperature of 1 pound of liquid water by 1 degree Fahrenheit at the temperature at which water has its greatest density (approximately 39 degrees Fahrenheit). Coke-oven Gas The mixture of permanent gases produced by the carbonization of coal in a coke oven at temperatures in excess of 1,000 degrees Celsius.

263

High PRF high current switch  

DOE Green Energy (OSTI)

A triggerable, high voltage, high current, spark gap switch for use in pu power systems. The device comprises a pair of electrodes in a high pressure hydrogen environment that is triggered by introducing an arc between one electrode and a trigger pin. Unusually high repetition rates may be obtained by undervolting the switch, i.e., operating the trigger at voltages much below the self-breakdown voltage of the device.

Moran, Stuart L. (Fredericksburg, VA); Hutcherson, R. Kenneth (College Park, MD)

1990-03-27T23:59:59.000Z

264

The Characterization of Scintillator Performance at Temperatures up to 400 Degrees Centigrade  

Science Conference Proceedings (OSTI)

The logging and characterization of geothermal wells requires improved scintillator systems that are capable of operation at temperatures significantly above those commonly encountered in the logging of most conventional oil and gas wells (e.g., temperatures nominally in the range of up to 150oC.) Unfortunately, most of the existing data on the performance of scintillators for radiation detection at elevated temperatures is fragmentary, uncorrelated, and generally limited to relatively low temperatures in most cases to temperatures well below 200oC. We have designed a system for characterizing scintillator performance at temperatures extending up to 400oC under inert atmospheric conditions, and this system is applied here to the determination of scintillator performance at elevated temperatures for a wide range of scintillators including, among others: bismuth germanate, cadmium tungstate, cesium iodide, cesium iodide (Tl), cesium iodide (Na), sodium iodide, sodium iodide (Tl), lutetium oxy-orthosilicate (Ce), zinc tungstate, yttrium aluminum perovskite (Ce), yttrium aluminum garnet (Ce), lutetium aluminum perovskite (Ce), and barium fluoride, strontium iodide(Eu). The results of these high-temperature scintillator performance tests are described in detail here. Comparisons of the relative elevated-temperature properties of the various scintillator materials have resulted in the identification of promising scintillator candidates for high-temperature use in geothermal and fossil-fuel well environments.

Boatner, Lynn A [ORNL; Neal, John S [ORNL; Kolopus, James A [ORNL; Ramey, Joanne Oxendine [ORNL; Akkurt, Hatice [ORNL

2013-01-01T23:59:59.000Z

265

Method for creating high carbon content products from biomass oil  

DOE Patents (OSTI)

In a method for producing high carbon content products from biomass, a biomass oil is added to a cracking reactor vessel. The biomass oil is heated to a temperature ranging from about 100.degree. C. to about 800.degree. C. at a pressure ranging from about vacuum conditions to about 20,700 kPa for a time sufficient to crack the biomass oil. Tar is separated from the cracked biomass oil. The tar is heated to a temperature ranging from about 200.degree. C. to about 1500.degree. C. at a pressure ranging from about vacuum conditions to about 20,700 kPa for a time sufficient to reduce the tar to a high carbon content product containing at least about 50% carbon by weight.

Parker, Reginald; Seames, Wayne

2012-12-18T23:59:59.000Z

266

Geographic patterns of carbon dioxide emissions from fossil-fuel burning, hydraulic cement production, and gas flaring on a one degree by one degree grid cell basis: 1950 to 1990  

SciTech Connect

Data sets of one degree latitude by one degree longitude carbon dioxide (CO{sub 2}) emissions in units of thousand metric tons of carbon (C) per year from anthropogenic sources have been produced for 1950, 1960, 1970, 1980 and 1990. Detailed geographic information on CO{sub 2} emissions can be critical in understanding the pattern of the atmospheric and biospheric response to these emissions. Global, regional and national annual estimates for 1950 through 1992 were published previously. Those national, annual CO{sub 2} emission estimates were based on statistics on fossil-fuel burning, cement manufacturing and gas flaring in oil fields as well as energy production, consumption and trade data, using the methods of Marland and Rotty. The national annual estimates were combined with gridded one-degree data on political units and 1984 human populations to create the new gridded CO{sub 2} emission data sets. The same population distribution was used for each of the years as proxy for the emission distribution within each country. The implied assumption for that procedure was that per capita energy use and fuel mix is uniform over a political unit. The consequence of this first-order procedure is that the spatial changes observed over time are solely due to changes in national energy consumption and nation-based fuel mix. Increases in emissions over time are apparent for most areas.

Brenkert, A.L. [ed.] [Oak Ridge National Lab., TN (United States). Carbon Dioxide Information Analysis Center; Andres, R.J. [Univ. of Alaska, Fairbanks, AK (United States). Inst. of Northern Engineering; Marland, G. [Oak Ridge National Lab., TN (United States). Environmental Sciences Div.; Fung, I. [Univ. of Victoria, British Columbia (Canada)]|[National Aeronautics and Space Administration, New York, NY (United States). Goddard Inst. for Space Studies; Matthews, E. [Columbia Univ., New York, NY (United States)]|[National Aeronautics and Space Administration, New York, NY (United States). Goddard Inst. for Space Studies

1997-03-01T23:59:59.000Z

267

Spatial correlation functions for the collective degrees of freedom of many trapped ions  

E-Print Network (OSTI)

Spatial correlation functions provide a glimpse into the quantum correlations within a quantum system. Ions in a linear trap collectively form a nonuniform, discretized background on which a scalar field of phonons propagates. Trapped ions have the experimental advantage of each having their own "built-in" motional detector: electronic states that can be coupled, via an external laser, to the ion's vibrational motion. The post-interaction electronic state can be read out with high efficiency, giving a stochastic measurement record whose classical correlations reflect the quantum correlations of the ions' collective vibrational state. Here we calculate this general result, then we discuss the long detection-time limit and specialize to Gaussian states, and finally we compare the results for thermal versus squeezed states.

Nicolas C. Menicucci; G. J. Milburn

2008-07-22T23:59:59.000Z

268

High-Temperature Thermodynamic Data for Species in Aqueous Solution  

Science Conference Proceedings (OSTI)

This report summarizes the results of experimental and theoretical research on the high-temperature thermodynamic properties of aqueous species important to nuclear reactor water chemistry. Methods of predicting thermodynamic functions are presented for electrolytes up to 300 degrees Celsius for use in supplementing experimental data. The report includes tables (up to 300 degrees Celsius) of (1) important equilibrium constants for 78 reactions encountered in corrosion and precipitation in nuclear reactor...

1982-05-01T23:59:59.000Z

269

Comparison of cracking kinetics for Kern River 650{degrees}F{sup +} residuum and Midway Sunset crude oil  

Science Conference Proceedings (OSTI)

Kern River 650{degrees}F{sup +} residuum and Midway Sunset crude oil were examined by micropyrolysis at several constant-heating rates to determine pyrolysis cracking kinetics. Determined by the discrete distribution method, both feeds exhibited principal activation energies of 50 kcal/mol and frequency factors {approximately} 10{sup 13} sec{sup -1}. Energy distributions were similar ranging from 45 to 57 kcal/mol. Determined by the shift-in-T{sub max} method, E{sub approx}, A{sub approx} for Kern River 650{degrees}F{sup +} and Midway Sunset were 48 kcal/mol, 1.3 X 10{sup 12} sec{sup -1}, and 46 kcal/mol, 4.6 X 10{sup 11} sec{sup -1}, respectively. These results are similar, but not identical to other kinetic parameters for heavy oils from type II source rocks.

Reynolds, J.

1995-05-01T23:59:59.000Z

270

Associate degree coal mining technology programs in Illinois community colleges: perceptions of the graduates concerning the effectiveness of their preparation  

SciTech Connect

This study determined the perceptions of Illinois community college graduates of mining technology associate degree programs for the period May 1974 to May 1980. The three community colleges offering the programs were Rend Lake College, Southeastern Illinois College, and Wabash Valley College. A questionnaire was formulated and mailed in the Fall of 1981 to the subject graduates and (with two follow-ups) achieved a 53.0% response rate, or 283 of the 534 graduates with current addresses. (Of the total 634 graduates, 100 questionnaires were not deliverable by the post office). Based upon the analysis of data related to the research questions of the study, certain conclusions were drawn, namely: 1) the curriculum content, instructional quality, and facilities were at an acceptable level for the preparation of coal mining technology students; and 2) the Illinois associate degree coal mining technology programs have been functional in preparing students for mining careers.

Heaton, E.R.

1983-01-01T23:59:59.000Z

271

{100}<100> or 45.degree.-rotated {100}<100>, semiconductor-based, large-area, flexible, electronic devices  

SciTech Connect

Novel articles and methods to fabricate the same resulting in flexible, {100}<100> or 45.degree.-rotated {100}<100> oriented, semiconductor-based, electronic devices are disclosed. Potential applications of resulting articles are in areas of photovoltaic devices, flat-panel displays, thermophotovoltaic devices, ferroelectric devices, light emitting diode devices, computer hard disc drive devices, magnetoresistance based devices, photoluminescence based devices, non-volatile memory devices, dielectric devices, thermoelectric devices and quantum dot laser devices.

Goyal, Amit (Knoxville, TN)

2012-05-15T23:59:59.000Z

272

Large (and Small) Energy Fluctuations in a Single Classical Degree of Freedom and the Second Law of Thermodynamics  

SciTech Connect

Energy fluctuations in a single classical degree of freedom above the ground state at thermodynamic equilibrium at temperature T are typically of average magnitude {approx}k{sub B}T. However, we show that the average magnitude of such fluctuations can be much larger (or much smaller) than k{sub B}T, indeed, that at least in principle it can be infinite (or arbitrarily close to 0). Nevertheless, the average energy fluctuation magnitude being untypically large (or untypically small) does not violate the second law of thermodynamics. For, if the average magnitude of energy fluctuations is much larger than k{sub B}T, then particle motion along the degree of freedom must manifest extreme spatial delocalization. The cost of locating the fluctuating particle along its degree of freedom equals or exceeds the large energy gain obtained upon finding it with an energy of much more than k{sub B}T above its ground state. The particle loses as much or more ability to do work via its spatial delocalization than it gains via the energy fluctuation. Similarly, if the average magnitude of energy fluctuations is much smaller than k{sub B}T, then the small energy yield obtainable upon locating the particle is compensated for by the small cost of locating it.

Denur, Jack [Electric and Gas Technology, Inc., 3233 West Kingsley Road, Garland, Texas 75041-2205 (United States)

2011-12-01T23:59:59.000Z

273

Oil-Well Cement and C3S Hydration Under High Pressure as Seen by In Situ X-Ray Diffraction, Temperatures ;= 80 degrees C with No Additives  

SciTech Connect

The hydration kinetics of a white cement and batches of both Class G and H oil-well cements were examined between 0 and 60 MPa, at {le}80 C, using in situ synchrotron X-ray diffraction. This gives a continuous measure of the C{sub 3}S (Ca{sub 3}SiO{sub 5}), CH (Ca(OH){sub 2}), C{sub 4}AF (Ca{sub 2}FeAlO{sub 5}), ettringite, and other phases in the hydrating slurries. Slurries prepared from single-phase C{sub 3}S; synthetic C{sub 4}AF, and gypsum; and white cement, synthetic C{sub 4}AF and gypsum were also examined. An increasing pressure enhanced the rate of hydration for all slurries. Analysis of the data, using a kinetic model, provided rate constants that were used to obtain activation volumes for C{sub 3}S hydration. For all the cement and C{sub 3}S slurries studied, similar activation volumes were obtained (average {Delta}V{double_dagger}{sup -}-35 cm{sup 3}/mol), indicating that the presence of cement phases other than C{sub 3}S has a modest influence on the pressure dependence of C{sub 3}S hydration. An alternative analysis, using the time at which 90% of the initial C{sub 3}S remained, gave similar activation volumes. Pressure accelerated the formation of ettringite from synthetic C{sub 4}AF in the presence of gypsum. However, in slurries containing cement, the pressure dependence of C{sub 3}S hydration plays a major role in determining the pressure dependence of ettringite formation.

Jupe, Andrew C.; Wilkinson, Angus P.; Funkhouser, Garry P. (Halliburton); (GIT)

2012-06-28T23:59:59.000Z

274

The compatibility of various polymeric liner and pipe materials with simulated double-shell slurry feed at 90/degree/C: Hanford Grout Technology Program  

SciTech Connect

The purpose of this study was to evaluate the compatibility of various polymeric liner and pipe materials with a low-level radioactive waste slurry called double-shell slurry feed (DSSF). The evaluation was necessary as part of the permitting process authorized by the Resource Conservation and Recovery Act (RCRA), PL-94-580. Materials that were examined included five flexible membrane liners (Hytrel/reg sign/ polyester, polyurethane, 8130 XR5/reg sign/, polypropylene, and high-density polyethylene) and high-density polyethylene (HDPE) pipe. The liner and pipe samples were immersed for 120 days in the synthetic DSSE at 90/degree/C, the maximum expected temperature in the waste disposal scenario. Physical properties of the liner and pipe samples were measured before immersion and every 30 days after immersion, in accordance with EPA Method 9090. In addition, some of the materials were exposed to four different radiation doses after 30 days of immersion. Physical properties of these materials were measured immediately after exposure and after an additional 90 days of immersion to determine each material's response to radiation, and whether radiation exposure affected the chemical compatibility of the material. 20 refs., 41 figs., 13 tabs.

Farnsworth, R.K.; Hymas, C.R.

1989-08-01T23:59:59.000Z

275

ARM: Ka-Band Scanning ARM Cloud Radar (KASACR) Hemispherical Sky RHI Scan (6 horizon-to-horizon scans at 30-degree azimuth intervals)  

DOE Data Explorer (OSTI)

Ka-Band Scanning ARM Cloud Radar (KASACR) Hemispherical Sky RHI Scan (6 horizon-to-horizon scans at 30-degree azimuth intervals)

Nitin Bharadwaj; Kevin Widener

276

Table Definitions, Sources, and Explanatory Notes  

Gasoline and Diesel Fuel Update (EIA)

Heating Oil & Propane Prices Heating Oil & Propane Prices Definitions Key Terms Definition No. 2 Fuel Oil (Heating Oil) A distillate fuel oil for use in atomizing type burners for domestic heating or for use medium capacity commercial-industrial burner units, with distillation temperatures between 540-640 degrees Fahrenheit at the 90-percent recovery point; and the kinematic viscosities between 1.9-3.4 centistokes at 100 degrees Fahrenheit as defined in ASTM Specification D396-92. Petroleum Administration for Defense District (PADD): PADD 1 (East Coast): PADD 1A (New England): Connecticut, Maine, Massachusetts, New Hampshire, Rhode Island, Vermont. PADD 1B (Central Atlantic): Delaware, District of Columbia, Maryland, New Jersey, New York, Pennsylvania. PADD 1C (Lower Atlantic): Florida, Georgia, North Carolina, South Carolina, Virginia, West Virginia.

277

Definition: British thermal unit | Open Energy Information  

Open Energy Info (EERE)

thermal unit thermal unit Jump to: navigation, search Dictionary.png British thermal unit The amount of heat required to raise the temperature of one pound of water one degree Fahrenheit; often used as a unit of measure for the energy content of fuels.[1][2] View on Wikipedia Wikipedia Definition The British thermal unit (BTU or Btu) is a traditional unit of energy equal to about 1055 joules. It is the amount of energy needed to cool or heat one pound of water by one degree Fahrenheit. In scientific contexts the BTU has largely been replaced by the SI unit of energy, the joule. The unit is most often used as a measure of power (as BTU/h) in the power, steam generation, heating, and air conditioning industries, and also as a measure of agricultural energy production (BTU/kg). It is still used

278

Expectations for Oil Shale Production (released in AEO2009)  

Reports and Publications (EIA)

Oil shales are fine-grained sedimentary rocks that contain relatively large amounts of kerogen, which can be converted into liquid and gaseous hydrocarbons (petroleum liquids, natural gas liquids, and methane) by heating the rock, usually in the absence of oxygen, to 650 to 700 degrees Fahrenheit (in situ retorting) or 900 to 950 degrees Fahrenheit (surface retorting) [60]. (Oil shale is, strictly speaking, a misnomer in that the rock is not necessarily a shale and contains no crude oil.) The richest U.S. oil shale deposits are located in Northwest Colorado, Northeast Utah, and Southwest Wyoming. Currently, those deposits are the focus of petroleum industry research and potential future production. Among the three States, the richest oil shale deposits are on Federal lands in Northwest Colorado.

Information Center

2009-03-31T23:59:59.000Z

279

Thermodynamic properties of adsorbed mixtures of benzene and cyclohexane on graphitized carbon and activated charcoal at 30/degree/c  

SciTech Connect

Experimental data at 30/degree/C are reported for the adsorption of mixtures of benzene and cyclohexane on two types of carbon surface: graphitized carbon and activated charcoal. The properties of the adsorbed solution approach those of bulk liquid at vapor saturation for graphitized carbon, but not for activated charcoal. The mixtures adsorbed on graphitized carbon are nonideal, and the deviations from ideality increase with surface coverage. For activated charcoal, the adsorbed mixtures are nearly ideal at all coverages. Mixture behavior for both adsorbents can be predicted without using experimental data for the adsorbed mixtures. 11 refs.

Myers, A.L.; Minka, C.; Ou, D.Y.

1982-01-01T23:59:59.000Z

280

Experimental studies of oxygen isotope fractionation in the carbonic acid system at 15, 25, and 40 (degrees)C  

E-Print Network (OSTI)

In light of recent studies that show oxygen isotope fractionation in carbonate minerals to be a function of HCO3 2-; and CO3 2- concentrations, the oxygen isotope fractionation and exchange between water and components of the carbonic acid system (HCO3 2-, CO3 2-, and CO2(aq)) were investigated at 15, 25, and 40 (degrees)C. To investigate oxygen isotope exchange between HCO3 2-, CO3 -2, and H2O, NaHCO3 solutions were prepared and the pH was adjusted over a range of 2 to 12 by the addition of small amounts of HCl or NaOH. After thermal, chemical, and isotopic equilibrium was attained, BaCl2 was added to the NaHCO3 solutions. This resulted in immediate BaCO3 precipitation; thus, recording the isotopic composition of the dissolved inorganic carbon. Data from experiments at 15, 25, and 40 (degrees)C (1 atm) show that the oxygen isotope fractionation between HCO3 2-; and H2O as a function of temperature is governed by the equation: 1000 ;HCO3--H2O = 2.66 + 0.05(106T-2) + 1.18 + 0.52. where is the fractionation factor and T is in kelvins. The temperature dependence of oxygen isotope fractionation between CO32 and H2O is 1000 CO32--H2O = 2.28 + 0.03(106T-2) - 1.50 + 0.29. The oxygen isotope fractionation between CO2(aq) and H2O was investigated by acid stripping CO2(aq) from low pH solutions; these data yield the following equation: 1000 CO2(aq)-H2O = 2.52 + 0.03(106T-2) + 12.12 + 0.33. The kinetics of oxygen isotope exchange were also investigated. The half-times for exchange between HCO3- and H2O were 3.6, 1.4, and 0.25 h at 15, 25, and 40 (degrees)C, respectively. The half-times for exchange between CO2 and H2O were 1200, 170, and 41 h at 15, 25, and 40 (degrees) C, respectively. These results show that the 18O of the total dissolved inorganic carbon species can vary as much as 17 at a constant temperature. This could result in temperature independent variations in the 18O of precipitated carbonate minerals, especially in systems that are not chemically buffered.

Beck, William Cory

2004-08-01T23:59:59.000Z

Note: This page contains sample records for the topic "degrees fahrenheit high" 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
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281

Structure and Energy of the 90 degree sign Partial Dislocation in Diamond: A Combined Ab Initio and Elasticity Theory Analysis  

Science Conference Proceedings (OSTI)

The core structure and stability of the 90 degree sign partial dislocation in diamond is studied within isotropic elasticity theory and ab initio total energy calculations. The double-period reconstruction is found to be more stable than the single-period reconstruction for a broad range of stress states. The analysis of the ab initio results shows further that elasticity theory is valid for dislocation spacings as small as 10-20 Angstrom, thus allowing ab initio calculations to provide reliable parameters for continuum theory analysis. (c) 2000 The American Physical Society.

Blase, X. [Department of Physics, University of California, Berkeley, California 94720 (United States); Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720 (United States); NERSC, Lawrence Berkeley National Laboratory, Berkeley, California 94720 (United States); Departement de Physique des Materiaux, U.M.R. No. 5586, 43 Bd du 11 Novembre 1918, 69622 Villeurbanne Cedex, (France); Lin, Karin [Department of Physics, University of California, Berkeley, California 94720 (United States); Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720 (United States); Canning, A. [NERSC, Lawrence Berkeley National Laboratory, Berkeley, California 94720 (United States); Louie, S. G. [Department of Physics, University of California, Berkeley, California 94720 (United States); Chrzan, D. C. [Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720 (United States); Department of Materials Science and Mineral Engineering, University of California, Berkeley, California 94720 (United States)

2000-06-19T23:59:59.000Z

282

High pressure xenon ionization detector  

DOE Patents (OSTI)

A method is provided for detecting ionization comprising allowing particles that cause ionization to contact high pressure xenon maintained at or near its critical point and measuring the amount of ionization. An apparatus is provided for detecting ionization, the apparatus comprising a vessel containing a ionizable medium, the vessel having an inlet to allow high pressure ionizable medium to enter the vessel, a means to permit particles that cause ionization of the medium to enter the vessel, an anode, a cathode, a grid and a plurality of annular field shaping rings, the field shaping rings being electrically isolated from one another, the anode, cathode, grid and field shaping rings being electrically isolated from one another in order to form an electric field between the cathode and the anode, the electric field originating at the anode and terminating at the cathode, the grid being disposed between the cathode and the anode, the field shaping rings being disposed between the cathode and the grid, the improvement comprising the medium being xenon and the vessel being maintained at a pressure of 50 to 70 atmospheres and a temperature of 0.degree. to 30.degree. C.

Markey, John K. (New Haven, CT)

1989-01-01T23:59:59.000Z

283

Window treatments for cold climates  

SciTech Connect

Design considerations for various types of energy conserving window treatments to avoid condensation related maintenance problems are discussed. The window heat losses, dew point temperatures and allowable relative humidities at which condensation may occur on interior glass surfaces at an interior temperature of 65 DEGF (degrees Fahrenheit) and exterior temperatures from -50 to 30 DEGF were calculated by computer. Vapor pressures were also computed to show the importance of vapor (air) tight weather stripping and coverings for window treatments.

Carlson, A.R.

1983-06-01T23:59:59.000Z

284

The herd behavior index: A new measure for the implied degree of co-movement in stock markets’, Insurance  

E-Print Network (OSTI)

We introduce a new and easy-to-calculate measure for the expected degree of herd behavior or co-movement between stock prices. This forward looking measure is model-independent and based on observed option data. It is baptized the Herd Behavior Index (HIX). The degree of co-movement in a stock market can be determined by comparing the observed market situation with the extreme (theoretical) situation under which the whole system is driven by a single factor. The HIX is then de…ned as the ratio of an option-based estimate of the risk-neutral variance of the market index and an option-based estimate of the corresponding variance in case of the extreme single factor market situation. The HIX can be determined for any market index provided an appropriate series of vanilla options is traded on this index as well as on its components. As an illustration, we determine historical values of the 30-days HIX for the Dow Jones Industrial Average, covering the period January 2003 to October 2009.

Jan Dhaene; Daniël Linders; Wim Schoutens; David Vyncke

2012-01-01T23:59:59.000Z

285

PU(2) monopoles. II: Top-level Seiberg-Witten moduli spaces and Witten's conjecture in low degrees  

E-Print Network (OSTI)

In this article we complete the proof---for a broad class of four-manifolds---of Witten's conjecture that the Donaldson and Seiberg-Witten series coincide, at least through terms of degree less than or equal to c-2, where c is a linear combination of the Euler characteristic and signature of the four-manifold. This article is a revision of sections 4--7 of an earlier version, while a revision of sections 1--3 of that earlier version now appear in a separate companion article (math.DG/0007190). Here, we use our computations of Chern classes for the virtual normal bundles for the Seiberg-Witten strata from the companion article (math.DG/0007190), a comparison of all the orientations, and the PU(2) monopole cobordism to compute pairings with the links of level-zero Seiberg-Witten moduli subspaces of the moduli space of PU(2) monopoles. These calculations then allow us to compute low-degree Donaldson invariants in terms of Seiberg-Witten invariants and provide a partial verification of Witten's conjecture.

Paul M. N. Feehan; Thomas G. Leness

1997-12-08T23:59:59.000Z

286

Technology transfer: Developing dual-degree programs with major universities in three energy-related careers. Final performance report  

SciTech Connect

In 1983, Fort Valley State University (FVSU) received start-up funds from the US Department of Energy`s Office of Minority Economic Impact to develop a Cooperative Developmental Energy Program (CDEP). The objective of CDEP is to develop a mutually beneficial long-term synergistic relationship among FVSU, two major universities, and the private and governmental sectors of the nation`s energy industry by creating a technology oriented labor base for minorities and women. FVSU accomplishes this objective by (1) developing dual-degree curricula with the University of Oklahoma and the University of Nevada at Las Vegas in energy related disciplines such as engineering, geosciences, and health physics; (2) by recruiting academically talented minority and female students to pursue careers in the above disciplines; and (3) by developing participatory alliances with major energy companies and governmental agencies via internship, co-op, and employment programs. Since its inception in 1983, CDEP has provided over 650 energy internships for FVSU students, they have gained over 250,000 hours of hands-on work experience, and earned over $3 million to help finance their education. Approximately, 900 students have been in the CDEP program. Over 30 have found employment in the energy industry and approximately 35 have gone on to earn Master`s or Ph.D. degrees.

1998-02-01T23:59:59.000Z

287

p-Hydroxyphenyl (H) Units Lower the Degree of Polymerization in Lignin: Chemical Control in Lignin Biosynthesis  

Science Conference Proceedings (OSTI)

Lignin, composed predominantly of p-hydroxyphenyl (H), guaiacyl (G) and syringyl (S) subunits, is a major component of plant cell walls that imparts resistance toward chemical and microbial deconstruction of plant biomass, rendering its conversion inefficient and costly. Previous studies have shown that alterating lignin composition, i.e., the relative abundance of H, G and S subunits, promises more efficient extraction of sugars from plant biomass. Smaller and less branched lignin chains are more easily extracted during pretreatment, making cellulose more readily degradable. Here, using density functional theory calculations, we show that the incorporation of H subunits into lignin via b-b and b-5 interunit linkages reduces the degree of polymerization in lignin. Frontier molecular orbital analyses of lignin dimers and trimers show that H as a terminal subunit on a growing lignin polymer linked via b-b and b-5 linkage cannot undergo radical formation, preventing further chain growth by endwise polymerization resulting in lignin polymers with lower degree of polymerization. These results indicate that, for endwise polymerization in lignin synthesis, there exists a chemical control that may lay a significant role in determining the structure of lignin.

Sangha, A. K.; Parks, J. M.; Davis, M. F.; Smith, J. C.

2013-01-01T23:59:59.000Z

288

Apparatus for accurately measuring high temperatures  

DOE Patents (OSTI)

The present invention is a thermometer used for measuring furnace temperaes in the range of about 1800.degree. to 2700.degree. C. The thermometer comprises a broadband multicolor thermal radiation sensor positioned to be in optical alignment with the end of a blackbody sight tube extending into the furnace. A valve-shutter arrangement is positioned between the radiation sensor and the sight tube and a chamber for containing a charge of high pressure gas is positioned between the valve-shutter arrangement and the radiation sensor. A momentary opening of the valve shutter arrangement allows a pulse of the high gas to purge the sight tube of air-borne thermal radiation contaminants which permits the radiation sensor to accurately measure the thermal radiation emanating from the end of the sight tube.

Smith, Douglas D. (Knoxville, TN)

1985-01-01T23:59:59.000Z

289

Graduate Student Graduate Degrees  

E-Print Network (OSTI)

. Allan Kirkpatrick ................Fluid Dynamics, Heat Transfer in Buildings and Engines Prof. Anthony vehicles; building and transportation systems; laser diagnostics, atmospheric plasmas, and computational Modeling and Computational Fluid Dynamics Prof. W.S. Sampath.........................Photovoltaic Solar

290

Zero Degree Experiment  

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

Detection Abstract Perhaps the most poorly understood aspect of hadron physics at Collider energies is particle production at very small angles. The fact that we know so little...

291

Graduate Student Graduate Degrees  

E-Print Network (OSTI)

...........................Photovoltaic Solar Cell Manufacturing Dr. Steven Schaeffer ....................Rapid/Flexible Tooling, Casting

292

Brief History Degrees Offered  

E-Print Network (OSTI)

Ridge Electron Linear Accelerator (ORELA) · Titan (world's most powerful computer) · ORNL Technical at ORNL) Research Collaboration with local Centers of Excellence For more information, see our Annual Tenure/Tenure Track faculty; 5 are joint with ORNL · 20 Research faculty (6 full-time) and 25 Adjunct

Tennessee, University of

293

Plastic substrates for active matrix liquid crystal display incapable of withstanding processing temperature of over 200.degree. C and method of fabrication  

DOE Patents (OSTI)

Bright-polarizer-free, active-matrix liquid crystal displays (AMLCDs) are formed on plastic substrates. The primary components of the display are a pixel circuit fabricated on one plastic substrate, an intervening liquid-crystal material, and a counter electrode on a second plastic substrate. The-pixel circuit contains one or more thin-film transistors (TFTs) and either a transparent or reflective pixel electrode manufactured at sufficiently low temperatures to avoid damage to the plastic substrate. Fabrication of the TFTs can be carried out at temperatures less than 100.degree. C. The liquid crystal material is a commercially made nematic curvilinear aligned phase (NCAP) film. The counter electrode is comprised of a plastic substrate coated with a transparent conductor, such as indium-doped tin oxide (ITO). By coupling the active matrix with NCAP, a high-information content can be provided in a bright, fully plastic package. Applications include any low cost portable electronics containing flat displays where ruggedization of the display is desired.

Carey, Paul G. (Mountain View, CA); Smith, Patrick M. (San Ramon, CA); Havens, John (San Diego, CA); Jones, Phil (Marlborough, GB)

1999-01-01T23:59:59.000Z

294

Effects of neutron irradiation on fatigue and creep-fatigue crack propagation in type 316 stainless steel at 649 degree C produced no significant effect on the crack propagation rate when compared with unirradiated steel tested at 649 degree C  

Science Conference Proceedings (OSTI)

The fatigue and creep-fatigue crack propagation performance of Type 316 stainless steel has been investigated following fast neutron (n) irradiation. The purpose was to evaluate the effects of neutron fluence and temperature on the crack propagation resistance and failure mode of the steel. Results are presented from fatigue tests of the annealed steel that were irradiated at 649 degree C Scanning electron microscope examination of the fracture surfaces of the tested specimens revealed that the failure mode of the specimens which exhibited increased crack propagation rates was primarily intergranular while a transgranular mode was observed for specimens with lower crack propagation rates. The results point toward a synergistic relationship between thermomechanical history, precipitate formation, and hold time effects as the responsible mechanism for the crack propagation performance.

Michel, D.J.; Smith, H.H.

1981-01-01T23:59:59.000Z

295

Evaluation of LOWTRAN and MODTRAN for use over high zenith angle/long path length viewing.  

E-Print Network (OSTI)

??LOWTRAN and MODTRAN were evaluated in the 2.0-5.5 micron region against field collection data at high zenith angle/long path lengths to determine the degree of… (more)

Wright, Jonathan

1991-01-01T23:59:59.000Z

296

Moderate Degree of Input Negative Entropy Flow and Decrease of Entropy in Astrophysics, Biology, Psychology and Social Systems  

E-Print Network (OSTI)

Thermodynamics have been applied to astronomy, biology, psychology, some social systems and so on. But, various evolutions from astronomy to biology and social systems cannot be only increase of entropy. When fluctuations are magnified due to internal interactions, the statistical independence and the second law of the thermodynamics are not hold. The existence of internal interactions is necessary condition of decrease of entropy in isolated system. We calculate quantitatively the entropy of plasma. Then we discuss the thermodynamics of biology, and obtain a mathematical expression on moderate degree of input negative entropy flow, which is a universal scientific law. Further, the thermodynamics of physiology and psychology, and the thought field are introduced. Qigong and various religious practices are related to these states of order, in which decrease of entropy is shown due to internal interactions of the isolated systems. Finally we discuss possible decrease of entropy in some social systems.

Yi-Fang Chang

2009-10-04T23:59:59.000Z

297

High Temperature, Buried Permanent Magnet, Brushless DC Motor  

E-Print Network (OSTI)

A high temperature magnetic bearing system using high temperature permanent magnets from Electron Energy Corporation (EEC) is under development. The system consists of two radial bearings, one thrust bearing, two radial catcher bearings and one motor. The purpose of this research is to develop one of the critical components of the system, namely, the High Temperature Permanent Magnet motor. A novel High Temperature Permanent Magnet (HTPM) Brushless DC(BLDC) motor capable of operating at 1000 degrees F (538 degrees C) is designed. HTPMs developed at Electron Energy Corporation are buried into the rotor. The high temperature motor is designed to produce 5.1kw of power at a top running speed of 20000 rpm. The numerical values of the motor voltage, power and torque output are predicted from calculations of the nonlinear finite element model of the motor. The motor stator is wound, potted, cured and high potential tested at 1000 degrees F. A servo amplifier from Advanced Motion Control is used to drive the high temperature motor. High temperature displacement sensors are set up for sensing the rotor position to form a closed loop motion control. However, the noise problem of the high temperature sensors causes a failure of this approach. An open loop approach is then developed and this approach succeeds in spinning the rotor with the capability of self-starting. The status of the full system assembling is introduced. Some other components of the system are briefly presented.

Zhang, Zhengxin

2010-08-01T23:59:59.000Z

298

High-temperature zirconia insulation and method for making same  

DOE Patents (OSTI)

The present invention is directed to a highly pure, partially stabilized, fibrous zirconia composite for use as thermal insulation in environments where temperatures up to about 2000.degree. C. are utilized. The composite of the present invention is fabricated into any suitable configuration such as a cone, cylinder, dome or the like by vacuum molding an aqueous slurry of partially stabilized zirconia fibers into a desired configuration on a suitably shaped mandrel. The molded fibers are infiltrated with zirconyl nitrate and the resulting structure is then dried to form a rigid structure which may be removed and placed in a furnace. The structure is then heated in air to a temperature of about 600.degree. C. for driving off the nitrate from the structure and for oxidizing the zirconyl ion to zirconia. Thereafter, the structure is heated to about 950.degree. to 1,250.degree. C. to fuse the zirconia fibers at their nexi in a matrix of zirconia. The composite produced by the present invention is self-supporting and can be readily machined to desired final dimensions. Additional heating to about 1800.degree. to 2000.degree. C. further improves structural rigidity.

Wrenn, Jr., George E. (Clinton, TN); Holcombe, Jr., Cressie E. (Knoxville, TN); Lewis, Jr., John (Oak Ridge, TN)

1988-01-01T23:59:59.000Z

299

An Assessment of the Degree of Implementation of the Lean Aerospace Initiative Principles and Practices within the US Aerospace and Defense Industry  

E-Print Network (OSTI)

This report is a formal documentation of the results of an assessment of the degree to which Lean Principles and Practices have been implemented in the US Aerospace and Defense Industry. An Industry Association team prepared ...

Shaw, Thomas E.

300

Volatile compound evolution from the programmed temperature pyrolysis of Big Clifty and McKittrick tar sands at a 10 degrees C/min heating rate  

DOE Green Energy (OSTI)

Big Clifty (Kentucky) and McKittrick (California) tar sands were pyrolyzed at a 10{degrees}C/min heating rate from room temperature to 900{degrees}C. The volatile compounds were detected on-line and in real time by tandem mass spectrometry using MS and MS/MS detection. This paper reports the programmed temperature pyrolysis behaviors of Big Clifty and McKittrick tar sands and compares their results. 48 refs., 10 figs., 3 tabs.

Reynolds, J.G.

1989-11-01T23:59:59.000Z

Note: This page contains sample records for the topic "degrees fahrenheit high" 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

Design and Control of a Compact 6-Degree-of-Freedom Precision Positioner with Linux- Based Real-Time Control  

E-Print Network (OSTI)

This dissertation presents the design, control, and implementation of a compact highprecision multidimensional positioner. This precision-positioning system consists of a novel concentrated-field magnet matrix and a triangular single-moving part that carries three 3-phase permanent-magnet planar-levitation-motor armatures. Since only a single levitated moving part, namely the platen, generates all required fine and coarse motions, this positioning system is reliable and potentially cost-effective. The three planar levitation motors based on the Lorentz-force law not only produce the vertical force to levitate the triangular platen but also control the platen's position and orientation in the horizontal plane. Three laser distance sensors are used to measure vertical, x-, and yrotation motions. Three 2-axis Hall-effect sensors are used to determine lateral motions and rotation motion about the z-axis by measuring the magnetic flux density generated by the magnet matrix. This positioning system has a total mass of 1.52 kg, which is the minimized mass to produce better dynamic performance. In order to reduce the mass of the moving platen, it is made of Delrin with a mass density of 1.54 g/cm3 by Computer Numerical Controlled (CNC) machining. The platen can be regarded a pure mass, and the spring and damping effects are neglected except for the vertical dynamic. Single-input single-output (SISO) digital lead-lag controllers and a multivariable Linear Quadratic Gaussian (LQG) controller were designed and implemented. Real-time control was performed with the Linux-Ubuntu operating system OS. Real Time Application Interface (RTAI) for Linux works with Comedi and Comedi libraries and enables closed-loop real-time control. One of the key advantages of this positioning stage with Hall-effect sensors is the extended travel range and rotation angle in the horizontal mode. The maximum travel ranges of 220 mm in x and 200 mm in y were achieved experimentally. Since the magnet matrix generates periodical sinusoidal flux densities in the x-y plane, the travel range can be extended by increasing the number of magnet pitches. The rotation angle of 12 degrees was achieved in rotation around z. The angular velocities of 0.2094 rad/s and 4.74 rad/s were produced by a 200-mm-diameter circular motion and a 30-mm-diameter spiral motion, respectively. The maximum velocity of 16.25 mm/s was acquired from over one pitch motion. The maximum velocity of 17.5 mm/s in a 8-mm scanning motion was achieved with the acceleration of 72.4 m/s2. Step responses demonstrated a 10-um resolution and 6-um rms position noise in the translational mode. For the vertical mode, step responses of 5 um in z, 0.001 degrees in roation around x, and 0.001 degrees in rotation around y were achieved. This compact single-moving-part positioner has potential applications for precisionpositioning systems in semiconductor- manufacturing.

Yu, Ho

2009-08-01T23:59:59.000Z

302

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

303

Method for synthesis of high quality graphene  

DOE Patents (OSTI)

A method is described herein for the providing of high quality graphene layers on silicon carbide wafers in a thermal process. With two wafers facing each other in close proximity, in a first vacuum heating stage, while maintained at a vacuum of around 10.sup.-6 Torr, the wafer temperature is raised to about 1500.degree. C., whereby silicon evaporates from the wafer leaving a carbon rich surface, the evaporated silicon trapped in the gap between the wafers, such that the higher vapor pressure of silicon above each of the wafers suppresses further silicon evaporation. As the temperature of the wafers is raised to about 1530.degree. C. or more, the carbon atoms self assemble themselves into graphene.

Lanzara, Alessandra (Piedmont, CA); Schmid, Andreas K. (Berkeley, CA); Yu, Xiaozhu (Berkeley, CA); Hwang, Choonkyu (Albany, CA); Kohl, Annemarie (Beneditkbeuern, DE); Jozwiak, Chris M. (Oakland, CA)

2012-03-27T23:59:59.000Z

304

High impact resistant ceramic composite  

DOE Patents (OSTI)

A ceramic material and a method of forming a ceramic material which possesses a high impact resistance. The material comprises: (a) a first continuous phase of .beta.-SiC; and (b) a second phase of about 25-40 vol % TiB.sub.2. Al.sub.2 O.sub.3 is preferably used as a densification aid. The material is formed by hot-pressing the mixture at a temperature from greater than about 1800.degree. C. to less than the transition temperature of .beta.-SiC to .alpha.-SiC. The hot-pressing is performed at a pressure of about 2000 psi to about 4000 psi in an inert atmosphere for several hours and results in the formation of a two phase sintered ceramic composite material.

Derkacy, James A. (Pittsburgh, PA)

1991-07-16T23:59:59.000Z

305

Pion production in nucleon-nucleon collisions in chiral effective field theory with Delta(1232)-degrees of freedom  

E-Print Network (OSTI)

A calculation of the pion-production operator up to next-to-next-to-leading order for s-wave pions is performed within chiral effective field theory. In the previous study [Phys. Rev. C 85, 054001 (2012)] we discussed the contribution of the pion-nucleon loops at the same order. Here we extend that study to include explicit Delta degrees of freedom and the 1/m_N^2 corrections to the pion-production amplitude. Using the power counting scheme where the Delta-nucleon mass difference is of the order of the characteristic momentum scale in the production process, we calculate all tree-level and loop diagrams involving Delta up to next-to-next-to-leading order. The long-range part of the Delta loop contributions is found to be of similar size to that from the pion-nucleon loops which supports the counting scheme. The net effect of pion-nucleon and Delta loops is expected to play a crucial role in understanding of the neutral pion production data.

A. A. Filin; V. Baru; E. Epelbaum; C. Hanhart; H. Krebs; F. Myhrer

2013-07-23T23:59:59.000Z

306

A MAGNETAR-LIKE EVENT FROM LS I +61 Degree-Sign 303 AND ITS NATURE AS A GAMMA-RAY BINARY  

SciTech Connect

We report on the Swift Burst Alert Telescope detection of a short burst from the direction of the TeV binary LS I +61 Degree-Sign 303, resembling those generally labeled as magnetar-like. We show that it is likely that the short burst was indeed originating from LS I +61 Degree-Sign 303 (although we cannot totally exclude the improbable presence of a far-away, line-of-sight magnetar) and that it is a different phenomenon with respect to the previously observed ks-long flares from this system. Accepting the hypothesis that LS I +61 Degree-Sign 303 is the first magnetar detected in a binary system, we study those implications. We find that a magnetar-composed LS I +61 Degree-Sign 303 system would most likely be (i.e., for the usual magnetar parameters and mass-loss rate) subject to a flip-flop behavior, from a rotationally powered regime (in the apastron) to a propeller regime (in the periastron) along each of the LS I +61 Degree-Sign 303 eccentric orbital motion. We prove that, unlike near an apastron, where an interwind shock can lead to the normally observed LS I +61 Degree-Sign 303 behavior, during TeV emission the periastron propeller is expected to efficiently accelerate particles only to sub-TeV energies. This flip-flop scenario would explain the system's behavior when a recurrent TeV emission only appears near the apastron, the anti-correlation of the GeV and TeV emission, and the long-term TeV variability (which seems correlated to LS I +61 Degree-Sign 303's super-orbital period), including the appearance of a low TeV state. Finally, we qualitatively put the multi-wavelength phenomenology into the context of our proposed model and make some predictions for further testing.

Torres, Diego F.; Rea, Nanda [Institut de Ciencies de l'Espai (IEEC-CSIC), Campus UAB, Torre C5, 2a planta, 08193 Barcelona (Spain); Esposito, Paolo [INAF, Osservatorio Astronomico di Cagliari, localita Poggio dei Pini, strada 54, I-09012 Capoterra (Italy); Li Jian; Chen Yupeng; Zhang Shu [Key Laboratory of Particle Astrophysics, Institute of High Energy Physics, Chinese Academy of Science, Beijing 100049 (China)

2012-01-10T23:59:59.000Z

307

High-temperature helium-loop facility  

Science Conference Proceedings (OSTI)

The high-temperature helium loop is a facility for materials testing in ultrapure helium gas at high temperatures. The closed loop system is capable of recirculating high-purity helium or helium with controlled impurities. The gas loop maximum operating conditions are as follows: 300 psi pressure, 500 lb/h flow rate, and 2100/sup 0/F temperature. The two test sections can accept samples up to 3.5 in. diameter and 5 ft long. The gas loop is fully instrumented to continuously monitor all parameters of loop operation as well as helium impurities. The loop is fully automated to operate continuously and requires only a daily servicing by a qualified operator to replenish recorder charts and helium makeup gas. Because of its versatility and high degree of parameter control, the helium loop is applicable to many types of materials research. This report describes the test apparatus, operating parameters, peripheral systems, and instrumentation system.

Tokarz, R.D.

1981-09-01T23:59:59.000Z

308

High strength graphite and method for preparing same  

DOE Patents (OSTI)

High strength graphite is manufactured from a mixture of a particulate filler prepared by treating a particulate carbon precursor at a temperature in the range of about 400.degree. to 1000.degree. C., an organic carbonizable binder, and green carbonizable fibers in a concentration of not more than 2 weight per cent of the filler. The use of the relatively small quantity of green fibers provides a substantial increase in the flexural strength of the graphite with only a relatively negligible increase in the modulus of elasticity.

Overholser, Lyle G. (Oak Ridge, TN); Masters, David R. (Knoxville, TN); Napier, John M. (Oak Ridge, TN)

1976-01-01T23:59:59.000Z

309

Method of making high strength, tough alloy steel  

DOE Patents (OSTI)

A high strength, tough alloy steel, particularly suitable for the mining industry, is formed by heating the steel to a temperature in the austenite range (1000.degree.-1100.degree. C.) to form a homogeneous austenite phase and then cooling the steel to form a microstructure of uniformly dispersed dislocated martensite separated by continuous thin boundary films of stabilized retained austenite. The steel includes 0.2-0.35 weight % carbon, at least 1% and preferably 3-4.5% chromium, and at least one other subsitutional alloying element, preferably manganese or nickel. The austenite film is stable to subsequent heat treatment as by tempering (below 300.degree. C.) and reforms to a stable film after austenite grain refinement.

Thomas, Gareth (Berkeley, CA); Rao, Bangaru V. N. (Albany, CA)

1979-01-01T23:59:59.000Z

310

Highly thermostable fluorescent proteins  

DOE Patents (OSTI)

Thermostable fluorescent proteins (TSFPs), methods for generating these and other stability-enhanced proteins, polynucleotides encoding such proteins, and assays and method for using the TSFPs and TSFP-encoding nucleic acid molecules are provided. The TSFPs of the invention show extremely enhanced levels of stability and thermotolerance. In one case, for example, a TSFP of the invention is so stable it can be heated to 99.degree. C. for short periods of time without denaturing, and retains 85% of its fluorescence when heated to 80.degree. C. for several minutes. The invention also provides a method for generating stability-enhanced variants of a protein, including but not limited to fluorescent proteins.

Bradbury, Andrew M. (Santa Fe, NM); Waldo, Geoffrey S. (Santa Fe, NM); Kiss, Csaba (Los Alamos, NM)

2011-03-22T23:59:59.000Z

311

High temperature water adsorption on The Geysers rocks  

DOE Green Energy (OSTI)

In order to measure water retention by geothermal reservoir rocks at the actual reservoir temperature, the ORNL high temperature isopiestic apparatus was adapted for adsorption measurements. The quality of water retained by rock samples taken from three different wells of The Geysers geothermal reservoir was measured at 150{sup degree}C, 200{sup degree}C, and 250{sup degree}C as a function of pressure in the range 0.00 {<=}p/p{sub degree} {<=} 0.98, where p{sub degree} is the saturated water vapor pressure. Both adsorption (increasing pressure) and desorption (decreasing pressure) runs were made in order to investigate the nature and the extent of the hysteresis. Additionally, low temperature gas adsorption analyses were performed on the same rock samples. Nitrogen or krypton adsorption and desorption isotherms at 77 K were used to obtain BET specific surface areas, pore volumes and their distributions with respect to pore sizes. Mercury intrusion porosimetry was also used to obtain similar information extending to very large pores (macropores). A correlation is sought between water adsorption, the surface properties, and the mineralogical and petrological characteristics of the solids.

Gruszkiewicz, M.S.; Horita, J.; Simonson, J.M.; Mesmer, R.E.

1997-08-01T23:59:59.000Z

312

Method and apparatus for cooling high temperature superconductors with neon-nitrogen mixtures  

DOE Patents (OSTI)

Apparatus and methods for cooling high temperature superconducting materials (HTSC) to superconductive temperatures within the range of 27.degree. K. to 77.degree. K. using a mixed refrigerant consisting of liquefied neon and nitrogen containing up to about ten mole percent neon by contacting and surrounding the HTSC material with the mixed refrigerant so that free convection or forced flow convection heat transfer can be effected.

Laverman, Royce J. (South Holland, IL); Lai, Ban-Yen (Hinsdale, IL)

1993-01-01T23:59:59.000Z

313

High efficiency shale oil recovery  

SciTech Connect

The overall project objective is to demonstrate the high efficiency of the Adams Counter-Current shale oil recovery process. The efficiency will first be demonstrated on a small scale, in the current phase, after which the demonstration will be extended to the operation of a small pilot plant. Thus the immediate project objective is to obtain data on oil shale retorting operations in a small batch rotary kiln that will be representative of operations in the proposed continuous process pilot plant. Although an oil shale batch sample is sealed in the batch kiln from the start until the end of the run, the process conditions for the batch are the same as the conditions that an element of oil shale would encounter in a continuous process kiln. Similar chemical and physical conditions (heating, mixing, pyrolysis, oxidation) exist in both systems.The two most important data objectives in this phase of the project are to demonstrate (1) that the heat recovery projected for this project is reasonable and (2) that an oil shale kiln will run well and not plug up due to sticking and agglomeration. The following was completed this quarter. (1) Twelve pyrolysis runs were made on five different oil shales. All of the runs exhibited a complete absence of any plugging, tendency. Heat transfer for Green River oil shale in the rotary kiln was 84.6 Btu/hr/ft[sup 2]/[degrees]F, and this will provide for ample heat exchange in the Adams kiln. (2) One retorted residue sample was oxidized at 1000[degrees]F. Preliminary indications are that the ash of this run appears to have been completely oxidized. (3) Further minor equipment repairs and improvements were required during the course of the several runs.

Adams, D.C.

1993-04-22T23:59:59.000Z

314

Creation of a data warehouse using the F-cube factory software to resolve problems with degrees of truth  

Science Conference Proceedings (OSTI)

The following work shows a solution for high complexity problems, with the commissioning of a Data Warehouse System applied to historical databases, which delivers useful information for decision making support in environmental situations, oriented to ... Keywords: OLAP, data warehouse, f-cube factory, fuzzy logic, linguistic labels

Zapata C. Santiago; Maruri B. Christian; Rojas B. Ronald

2011-12-01T23:59:59.000Z

315

High Performance Computing  

Science Conference Proceedings (OSTI)

High Performance Computing. Summary: High Performance Computing (HPC) enables work on challenging problems that ...

2012-03-05T23:59:59.000Z

316

Measurement of cross sections of p(e,e'pi^+)n for near pion threshold and high-lying resonances at high Q^2  

Science Conference Proceedings (OSTI)

During the last decade, remarkable experimental data have been collected in an extensive programs to study the excitation of nucleon resonance (N*) at Jefferson Laboratory through pion electroproduction using polarized electron beam and unpolarized proton target. The CEBAF Large Acceptance Spectrometer (CLAS) is well suited for the study of a broad range of kinematics in the invariant mass W and photon virtuality Q{sup 2} with nearly complete angular coverage for the hadronic decays. Electron scattering allows us to probe the effective degrees of freedom in excited nucleon states from meson-baryon to dressed quarks in terms of varying the distance scale. The study of nucleon structure allows us to understand these effective degrees of freedom. In this proceeding, I present preliminary cross sections for single pion production in mass range of high-lying resonances as well as near the pion threshold. Analysis of N{pi}{sup +} cross sections together with N{pi}{sup 0} and N {pi}{pi} exclusive electroproduction data, will allow us for the first time to determine electrocouplings of several high-lying excited proton states (W {ge} 1.6 GeV) at photon virtualities that correspond to the transition toward the dominance of quark degrees of freedom. I also present preliminary result on the E{sub 0+} multipole near pion threshold at 2.0 GeV{sup 2} {le} Q{sup 2} {le} 4.5 GeV{sup 2} using exclusive N{pi}{sup +} electroproduction data.

Kijun Park

2012-04-01T23:59:59.000Z

317

High Field Phenomena of Qubits  

E-Print Network (OSTI)

Electron and nuclear spins are very promising candidates to serve as quantum bits (qubits) for proposed quantum computers, as the spin degrees of freedom are relatively isolated from their surroundings, and can be coherently manipulated e.g. through pulsed EPR and NMR. For solid state spin systems, impurities in crystals based on carbon and silicon in various forms have been suggested as qubits, and very long relaxation rates have been observed in such systems. We have investigated a variety of these systems at high magnetic fields in our multi-frequency pulsed EPR/ENDOR spectrometer. A high magnetic field leads to large electron spin polarizations at helium temperatures giving rise to various phenomena that are of interest with respect to quantum computing. For example, it allows the initialization of the both the electron spin as well as hyperfine-coupled nuclear spins in a well defined state by combining millimeter and RF radiation; it can increase the T2 relaxation times by eliminating decoherence due to dipolar interaction; and it can lead to new mechanisms for the coherent electrical readout of electron spins. We will show some examples of these and other effects in Si:P, SiC:N, and nitrogen-related centers in diamond.

J. van Tol; G. W. Morley; S. Takahashi; D. R. McCamey; C. Boehme; M. E. Zvanut

2009-06-11T23:59:59.000Z

318

Results of charpy V-notch impact testing of structural steel specimens irradiated at {approximately}30{degrees}C to 1 x 10{sup 16} neutrons/cm{sup 2} in a commercial reactor cavity  

SciTech Connect

A capsule containing Charpy V-notch (CVN) and mini-tensile specimens was irradiated at {approximately} 30{degrees}C ({approximately} 85{degrees}F) in the cavity of a commercial nuclear power plant to a fluence of 1 x 10{sup 16} neutrons/cm{sup 2} (> 1MeV). The capsule included six CVN impact specimens of archival High Flux Isotope Reactor A212 grade B ferritic steel and five CVN impact specimens of a well-studied A36 structural steel. This irradiation was part of the ongoing study of neutron-induced damage effects at the low temperature and flux experienced by reactor supports. The plant operators shut down the plant before the planned exposure was reached. The exposure of these specimens produced no significant irradiation-induced embrittlement. Of interest were the data on unirradiated specimens in the L-T orientation machined from a single plate of A36 structural steel, which is the same specification for the structural steel used in some reactor supports. The average CVN energy of five unirradiated specimens obtained from one region of the plate and tested at room temperature was {approximately} 99 J, while the energy of 11 unirradiated specimens from other locations of the same plate was 45 J, a difference of {approximately} 220%. The CVN impact energies for all 18 specimens ranged from a low of 32 J to a high of 111 J. Moreover, it appears that the University of Kansas CVN impact energy data of the unirradiated specimens at the 100-J level are shifted toward higher temperatures by about 20 K. The results were an example of the extent of scatter possible in CVN impact testing. Generic values for the CVN impact energy of A36 should be used with caution in critical applications.

Iskander, S.K.; Stoller, R.E.

1997-04-01T23:59:59.000Z

319

International Degree (ID) and Engineering For complete information and admission requirements for the ID, refer to the "Passport to the International  

E-Print Network (OSTI)

credits which apply toward the degree. The ID program advisor works closely with each student to help develop a unique program that meets their needs and future goals. Students will also work with a thesis a structural engineer on the Hanford vitrification design-build project How can I get started

Escher, Christine

320

A Study of the Severity of the Midwestern Winters of 1977 and 1978 Using Heating Degree Days Determined from Both Measured and Wind Chill Temperatures  

Science Conference Proceedings (OSTI)

The winters of 1976–77 and 1977–78 were severe by virtually any standard. In this study, heating degree day (NDD) accumulations for these two winters as well as for the 1941–70 normals are examined at 31 National Weather Service stations in ...

Patricia M. Dare

1981-07-01T23:59:59.000Z

Note: This page contains sample records for the topic "degrees fahrenheit high" 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

The most important thing you can do is be conscious of your energy usage, particularly with your AC and heating. Every added degree wastes gobs of  

E-Print Network (OSTI)

and heating. Every added degree wastes gobs of energy, which can go unnoticed since you pay a flat utilities you whether an action, such as leaving your computer on, will waste energy. For more information with the lights on. Tuition going towards this energy waste could be spent more productively if we use lights only

Dobbins, Ian G.

322

Obtain a master's degree in social work from the fully-accredited School of Social Work at Colorado State University. The school is dedicated to  

E-Print Network (OSTI)

range of social work applications. The program's faculty represents a wide range of talents, expertise of this three-year program consists of foundation courses that follow the core areas of social work practiceOverview Obtain a master's degree in social work from the fully-accredited School of Social Work

323

Take your career to the next level with a bachelor's degree in Fire and Emergency Services Administration. Fire and emergency personnel have  

E-Print Network (OSTI)

Overview Take your career to the next level with a bachelor's degree in Fire and Emergency Services Administration. Fire and emergency personnel have a long and proud history of providing communities with a wide variety of fire protection, fire prevention, emergency medical, and emergency preparedness services

324

www.westfalenwind.de 1 ,,Grid integration of high volumes of Renewable Energies  

E-Print Network (OSTI)

Enhancement of grid for powertransfer Power-to-Heat instead of power management (reduces ,,must-run unitswww.westfalenwind.de 1 ,,Grid integration of high volumes of Renewable Energies ­ Exceeding.westfalenwind.de 4 Grid requirements RES power generation characteristics: · high degree of fluctuating sources like

Noé, Reinhold

325

Atlantic bluefin tuna (Thunnus thyn-nus thynnus) is a highly migratory  

E-Print Network (OSTI)

118 Atlantic bluefin tuna (Thunnus thyn- nus thynnus) is a highly migratory pelagic species encountered south of 20°N since the 1960s. Two blue- fin tuna breeding sites are known in the North Atlantic for bluefin tuna along the North American and European coasts, and to a lesser degree in the high seas

326

High precision high flow range control valve  

DOE Patents (OSTI)

A fluid control valve is described having a valve housing having first and second valve housing openings for the ingress and egress of fluid through the control valve. Disposed within a void formed by the control valve is a sleeve having at least one sleeve opening to permit the flow of fluid therethrough. A flow restricter travels within the sleeve to progressively block off the sleeve opening and thereby control flow. A fluid passageway is formed between the first valve housing opening and the outer surface of the sleeve. A second fluid passageway is formed between the inside of the sleeve and the second valve housing opening. Neither fluid passageway contains more than one 90.degree. turn. In the preferred embodiment only one of the two fluid passageways contains a 90.degree. turn. In another embodiment, the control valve housing is bifurcated by a control surface having control surface opening disposed therethrough. A flow restricter is in slidable contact with the control surface to restrict flow of fluid through the control surface openings.

McCray, John A. (Idaho Falls, ID)

1999-01-01T23:59:59.000Z

327

High Temperatures & Electricity Demand  

E-Print Network (OSTI)

High Temperatures & Electricity Demand An Assessment of Supply Adequacy in California Trends.......................................................................................................1 HIGH TEMPERATURES AND ELECTRICITY DEMAND.....................................................................................................................7 SECTION I: HIGH TEMPERATURES AND ELECTRICITY DEMAND ..........................9 BACKGROUND

328

High Performance Computing  

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

Information Science, Computing, Applied Math High Performance Computing High Performance Computing Providing world-class high performance computing capability that enables...

329

Dependence of Electronic Structure of SrRuO3 and the Degree of Correlation on Cation Off-Stoichiometry  

Science Conference Proceedings (OSTI)

We have grown and studied high quality SrRuO{sub 3} films grown by MBE as well as PLD. By changing the oxygen activity during deposition we were able to make SrRuO{sub 3} samples that were stoichiometric (low oxygen activity) or with ruthenium vacancies (high oxygen activity). Samples with strontium vacancies were found impossible to produce since the ruthenium would precipitate out as RuO{sub 2}. The volume of the unit cell of SrRuO{sub 3} becomes larger as more ruthenium vacancies are introduced. The residual resistivity ratio (RRR) and room temperature resistivity were found to systematically depend on the volume of the unit cell and therefore on the amount of ruthenium vacancies. The RRR varied from {approx}30 for stoichiometric samples to less than two for samples that were very ruthenium poor. The room temperature resistivity varied from 190 {micro}{Omega} cm for stoichoimetric samples to over 300 {micro}{Omega} cm for very ruthenium poor samples. UPS spectra show a shift of weight from the coherent peak to the incoherent peak around the Fermi level when samples have more ruthenium vacancies. Core level XPS spectra of the ruthenium 3d lines show a strong screened part in the case of stoichiometric samples. This screened part disappears when ruthenium vacancies are introduced. Both the UPS and the XPS results are consistent with the view that correlation increases as the amount of ruthenium vacancies increase.

Siemons, W.

2011-08-19T23:59:59.000Z

330

Fabrication of high exposure nuclear fuel pellets  

DOE Patents (OSTI)

A method is disclosed for making a fuel pellet for a nuclear reactor. A mixture is prepared of PuO.sub.2 and UO.sub.2 powders, where the mixture contains at least about 30% PuO.sub.2, and where at least about 12% of the Pu is the Pu.sup.240 isotope. To this mixture is added about 0.3 to about 5% of a binder having a melting point of at least about 250.degree. F. The mixture is pressed to form a slug and the slug is granulated. Up to about 4.7% of a lubricant having a melting point of at least about 330.degree. F. is added to the granulated slug. Both the binder and the lubricant are selected from a group consisting of polyvinyl carboxylate, polyvinyl alcohol, naturally occurring high molecular weight cellulosic polymers, chemically modified high molecular weight cellulosic polymers, and mixtures thereof. The mixture is pressed to form a pellet and the pellet is sintered.

Frederickson, James R. (Richland, WA)

1987-01-01T23:59:59.000Z

331

Impact Testing of Stainless Steel Material at Room and Elevated Temperatures  

SciTech Connect

Stainless steels are used for the construction of numerous spent nuclear fuel or radioactive material containers that may be subjected to high strains and moderate strain rates during accidental drop events. Mechanical characteristics of these base materials and their welds under dynamic loads in the strain rate range of concern are not well documented. However, three previous papers [1, 2, 3] reported on impact testing and analysis results performed at the Idaho National Laboratory using 304/304L and 316/316L stainless steel base material specimens that began the investigation of these characteristics. The goal of the work presented herein is to add the results of additional tensile impact testing for 304/304L and 316/316L stainless steel material specimens. Utilizing a drop-weight impact test machine and 1/4-inch to 1/2-inch thick dog-bone shaped test specimens, additional tests achieved target strain rates of 5, 10, and 22 per second at room temperature, 300, and 600 degrees Fahrenheit. Elevated true stress-strain curves for these materials at each designated strain rate and temperature are presented herein.

Dana K. Morton; Spencer D. Snow; Tom E. Rahl; Robert K. Blandford

2007-07-01T23:59:59.000Z

332

High Speed High Dynamic Range High Accuracy Measurement System  

Disclosure Number 201102747 Technology Summary The present invention measures a beam of protons that has a high dynamic range. Typically, one uses ...

333

Assessment of Degree of Applicability of Benchmarks for Gadolinium Using KENO V.a and the 238-Group SCALE Cross-Section Library  

SciTech Connect

A review of the degree of applicability of benchmarks containing gadolinium using the computer code KENO V.a and the gadolinium cross sections from the 238-group SCALE cross-section library has been performed for a system that contains {sup 239}Pu, H{sub 2}O, and Gd{sub 2}O{sub 3}. The system (practical problem) is a water-reflected spherical mixture that represents a dry-out condition on the bottom of a sludge receipt and adjustment tank around steam coils. Due to variability of the mixture volume and the H/{sup 239}Pu ratio, approximations to the practical problem, referred to as applications, have been made to envelop possible ranges of mixture volumes and H/{sup 239}Pu ratios. A newly developed methodology has been applied to determine the degree of applicability of benchmarks as well as the penalty that should be added to the safety margin due to insufficient benchmarks.

Goluoglu, S.

2003-12-01T23:59:59.000Z

334

Degrees Awarded by Year This information is based on the Coordinating Board Graduation Report (CBM009) which is certified by the state. The  

E-Print Network (OSTI)

on the Coordinating Board Graduation Report (CBM009) which is certified by the state. The College information is based,485 27.0% Public Policy 231 5.0% 270 5.6% 300 6.1% 313 6.0% 328 6.0% Sciences 624 13.6% 616 12.8% 605 12 Policy Sciences University College Degrees Awarded by College * The Honors College includes only students

Jiménez, Daniel A.

335

Ultra-high resolution computed tomography imaging  

DOE Patents (OSTI)

A method for ultra-high resolution computed tomography imaging, comprising the steps of: focusing a high energy particle beam, for example x-rays or gamma-rays, onto a target object; acquiring a 2-dimensional projection data set representative of the target object; generating a corrected projection data set by applying a deconvolution algorithm, having an experimentally determined a transfer function, to the 2-dimensional data set; storing the corrected projection data set; incrementally rotating the target object through an angle of approximately 180.degree., and after each the incremental rotation, repeating the radiating, acquiring, generating and storing steps; and, after the rotating step, applying a cone-beam algorithm, for example a modified tomographic reconstruction algorithm, to the corrected projection data sets to generate a 3-dimensional image. The size of the spot focus of the beam is reduced to not greater than approximately 1 micron, and even to not greater than approximately 0.5 microns.

Paulus, Michael J. (Knoxville, TN); Sari-Sarraf, Hamed (Knoxville, TN); Tobin, Jr., Kenneth William (Harriman, TN); Gleason, Shaun S. (Knoxville, TN); Thomas, Jr., Clarence E. (Knoxville, TN)

2002-01-01T23:59:59.000Z

336

Glossary | Building Energy Codes Program  

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

Daylight Glazing Daylight Glazing Exterior glazing over 6 feet above the finished floor. DDC See Direct Digital Control. Deadband The temperature range in which no heating or cooling is used. Decorative Lighting Lighting that is purely ornamental and installed for aesthetic effect. Decorative lighting shall not include general lighting. Degree Day See "Heating Degree Days." Degree Day Base 50F For any one day, when the mean temperature is more than 50°F, there are as many degree days as degrees Fahrenheit temperature difference between the mean temperature for the day and 50°F. Annual cooling degree days (CDDs) are the sum of the degree days over a calendar year. Demand The highest amount of power (average kilowatt over an interval) recorded for a building or facility in a selected time frame.

337

Microfracturing in Westerly granite experimentally extended wet and dry at temperatures to 800/degree/C and pressures to 200 MPa  

DOE Green Energy (OSTI)

Microfracturing in Westerly granite specimens, extended wet and dry, at temperatures to 800/degree/C and confining pressures to 200 MPa, is analyzed with a view toward understanding why, in the brittle field, rock strengths decrease with increasing temperature. Intragranular (IGC) and grain-boundary cracks (GBC) are mapped in two dimensions on either side of the tensile macrofracture, using optical microscopy, to determine, quantitatively, crack lengths and densities and, qualitatively, crack widths and orientations are visually examined to aid in interpretation. Temperature and confining pressure tend to favor the development of different microfracture fabrics. Thermal stresses produce a random orientation of cracks while stresses resulting from the external differential loading of a specimen produce a preferred orientation of cracks parallel to the direction of sigma/sub 1/. In dry experiments, between 600/degree/ and 800/degree/C, both GBC and IGC densities increase with increasing temperature. The increase in crack abundance is responsible for the thermal weakening of the rock. With increasing temperature, GBC play a greater role in the deformational history leading to rock failure. 27 refs., 24 figs.

Hopkins, T.W.

1986-05-01T23:59:59.000Z

338

Transition between the 1 x 1 and ({radical}3 x 2{radical}3)R30{degree} surface structures of GaN in the vapor-phase environment  

SciTech Connect

Out-of-plane structures of the GaN(0001) surface in the metal-organic chemical vapor deposition (MOCVD) environment have been determined using in situ grazing-incidence X-ray scattering. The authors measured 11{bar 2}{ell} crystal truncation rod intensities at a variety of temperatures and ammonia partial pressures on both sides of the 1 x 1 to ({radical}3 x 2{radical}3)R30{degree} surface phase transition. The out-of-plane structure of the ({radical}3 x 2{radical}3)R30{degree} phase appears to be nearly independent of temperature below the transition, while the structure of the 1 x 1 phase changes increase rapidly as the phase transition is approached from above. A model for the structure of the 1 x 1 phase with a partially-occupied top Ga layer agrees well with the data. The observed temperature dependence is consistent with a simple model of the equilibrium between the vapor phase and the surface coverage of Ga and N. In addition, the authors present results on the kinetics of reconstruction domain coarsening following a quench into the ({radical}3 x 2{radical}3)R30{degree} phase field.

Munkholm, A.; Thompson, C.; Stephenson, G. B.; Eastman, J. A.; Auciello, O.; Fini, P.; Speck, J. S.; DenBaars, S. P.

2000-01-12T23:59:59.000Z

339

Variable pressure insulating jackets for high-temperature batteries  

DOE Green Energy (OSTI)

A new method is proposed for controlling the temperature of high-temperature batteries namely, varying the hydrogen pressure inside of multifoil insulation by varying the temperature of a reversible hydrogen getter. Calculations showed that the rate of heat loss through 1.5 cm of multifoil insulation between a hot-side temperature of 425[degrees]C and a cold-side temperature of 25[degrees]C could be varied between 17.6 W/m[sup 2] and 7,000 W/m[sup 2]. This change in heat transfer rate can be achieved by varying the hydrogen pressure between 1.0 Pa and 1,000 Pa, which can be done with an available hydrogen gettering alloy operating in the range of 50[degrees]C to 250[degrees]C. This approach to battery cooling requires cylindrical insulating jackets, which are best suited for bipolar batteries having round cells approximately 10 to 18 cm in diameter.

Nelson, P.A.; Chilenskas, A.A.; Malecha, R.F.

1992-01-01T23:59:59.000Z

340

Variable pressure insulating jackets for high-temperature batteries  

DOE Green Energy (OSTI)

A new method is proposed for controlling the temperature of high-temperature batteries namely, varying the hydrogen pressure inside of multifoil insulation by varying the temperature of a reversible hydrogen getter. Calculations showed that the rate of heat loss through 1.5 cm of multifoil insulation between a hot-side temperature of 425{degrees}C and a cold-side temperature of 25{degrees}C could be varied between 17.6 W/m{sup 2} and 7,000 W/m{sup 2}. This change in heat transfer rate can be achieved by varying the hydrogen pressure between 1.0 Pa and 1,000 Pa, which can be done with an available hydrogen gettering alloy operating in the range of 50{degrees}C to 250{degrees}C. This approach to battery cooling requires cylindrical insulating jackets, which are best suited for bipolar batteries having round cells approximately 10 to 18 cm in diameter.

Nelson, P.A.; Chilenskas, A.A.; Malecha, R.F.

1992-12-31T23:59:59.000Z

Note: This page contains sample records for the topic "degrees fahrenheit high" 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

The significance of post-secondary education in Newfoundland : a comparison between the provincial government's white paper on public post-secondary education (2005) and rural women enrolled in liberal arts undergraduate degrees.  

E-Print Network (OSTI)

??This thesis examines the significance of post-secondary education for rural Newfoundland women studying liberal arts degrees, and the fit of these experiences and perspectives with… (more)

Bourgeois, Monique F. (Monique Frances)

2009-01-01T23:59:59.000Z

342

Venture Capital, High Technology and Regional Development’  

E-Print Network (OSTI)

This paper explores the role ofventure capital in technological innovation and regional development. Both aggregate data and a unique firm level data base are employed to determine the location of major centres of venture capital, flows of venture capital investments, and patterns of investment syndication or coinvestment among venture capital firms. Three major centres of venture capital arc identified: California (San Francisco-Silicon Valley); New York; and Ncw England (Massachusetts-Connecticut): as well as three minor venture capital centres: Illinois (Chicago); Texas; and Minnesota. Venture capital firms are found to cluster in areas with high concentrations of financial institutions and those with high concentrations of technology-intensive enterprises. Venture capital firms which are based in financial centres are typically export-oriented, while those in technology centres tend to invest in their own region and attract outside venture capital. Venture capital investmcnts flow predominantly toward established high technology areas such as Silicon Valley and Boston-Iioute 128, and venturc investing is also characterized by high degrees of intra-and inter-regional syndication or coinvestment. The venture capital industry displays a high level of agglomeration due to the information intensive nature of the investment process and the importance of venture capital networks in locating investments, mobilizing resources, and establishing business start-ups. The existence of well developed venture capital networks in technology-based regions significantly accelerates the pace of technological innovation and economic development in those regions.

Richard L. Florida; Martin Kenneyt

1986-01-01T23:59:59.000Z

343

High Performance Rooftop Units  

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

Presentationname High Performance RTUs Life Cycle Cost Comparison Calculator * Web-based tool for comparing costs of standard and high performance RTUs. * Weather data for 237...

344

High Performance Networks for High Impact Science  

Science Conference Proceedings (OSTI)

This workshop was the first major activity in developing a strategic plan for high-performance networking in the Office of Science. Held August 13 through 15, 2002, it brought together a selection of end users, especially representing the emerging, high-visibility initiatives, and network visionaries to identify opportunities and begin defining the path forward.

Scott, Mary A.; Bair, Raymond A.

2003-02-13T23:59:59.000Z

345

Electrochemical corrosion studies on copper-base waste package container materials in unirradiated 0.1 N NaNO{sub 3} at 95{degrees}C  

SciTech Connect

Three candidate materials were investigated in this study in terms of their electrochemical corrosion behavior in unirradiated 0.1 N NaNO{sub 3} solutions at 95{degrees}C. Anodic polarization experiments were conducted to determine the passive current densities, pitting potentials, and other parameters, together with Cyclic Current Reversal Voltammetry tests to evaluate the stability and protectiveness of the passive oxides formed. X-ray diffraction and Auger Electron Spectroscopy were used for identification of the corrosion products as well as Scanning Electron Microscopy for the surface morphology studies. 2 refs., 22 figs., 2 tabs.

Akkaya, M.; Verink, E.D. Jr. [Florida Univ., Gainesville, FL (USA); Van Konynenburg, R.A. [Lawrence Livermore National Lab., CA (USA)

1988-05-01T23:59:59.000Z

346

Study of HTS Wires at High Magnetic Fields  

SciTech Connect

Fermilab is working on the development of high field magnet systems for ionization cooling of muon beams. The use of high temperature superconducting (HTS) materials is being considered for these magnets using Helium refrigeration. Critical current (I{sub c}) measurements of HTS conductors were performed at FNAL and at NIMS up to 28 T under magnetic fields at zero to 90 degree with respect to the sample face. A description of the test setups and results on a BSCCO-2223 tape and second generation (2G) coated conductors are presented.

Turrioni, D.; Barzi, E.; Lamm, M.J.; Yamada, R.; Zlobin, A.V.; Kikuchi, A.; /Fermilab

2009-01-01T23:59:59.000Z

347

Cosmic Ray Positrons at High Energies: A New Measurement  

E-Print Network (OSTI)

We present a new measurement of the cosmic-ray positron fraction e+/(e+ + e-) obtained from the first balloon flight of the High Energy Antimatter Telescope (HEAT). Using a magnet spectrometer combined with a transition radiation detector, an electromagnetic calorimeter, and time-of-flight counters we have achieved a high degree of background rejection. Our results do not indicate a major contribution to the positron flux from primary sources. In particular, we see no evidence for the significant rise in the positron fraction at energies above ~10 GeV previously reported.

HEAT Collaboration

1995-05-30T23:59:59.000Z

348

High-Resolution Aeromagnetic Mapping Of Volcanic Terrain, Yellowstone  

Open Energy Info (EERE)

High-Resolution Aeromagnetic Mapping Of Volcanic Terrain, Yellowstone High-Resolution Aeromagnetic Mapping Of Volcanic Terrain, Yellowstone National Park Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: High-Resolution Aeromagnetic Mapping Of Volcanic Terrain, Yellowstone National Park Details Activities (1) Areas (1) Regions (0) Abstract: High-resolution aeromagnetic data acquired over Yellowstone National Park (YNP) show contrasting patterns reflecting differences in rock composition, types and degree of alteration, and crustal structures that mirror the variable geology of the Yellowstone Plateau. The older, Eocene, Absaroka Volcanic Supergroup, a series of mostly altered, andesitic volcanic and volcaniclastic rocks partially exposed in mountains on the eastern margin of YNP, produces high-amplitude, positive magnetic

349

Empirical Analysis on the Cities' GDP and the Main Economic Indicators of High-Tech Industrial Parks  

Science Conference Proceedings (OSTI)

In this paper, the national 54 high-tech industrial parks' main economic indicators and their cities' GDP are analyzed respectively with clustering analysis. It is found that there is a certain degree of correlation between them. To reveal the inner ... Keywords: Cities' GDP, High-tech industrial parks' economic, Correlation Analysis, Clustering Analysis

Yu-Chen Song; Sha Zhen

2011-10-01T23:59:59.000Z

350

DYNAMICAL ANALYSIS OF HIGHLY EXCITED MOLECULAR SPECTRA  

SciTech Connect

Spectra and internal dynamics of highly excited molecules are essential to understanding processes of fundamental importance for combustion, including intramolecular energy transfer and isomerization reactions. The goal of our program is to develop new theoretical tools to unravel information about intramolecular dynamics encoded in highly excited experimental spectra. We want to understand the formations of ''new vibrational modes'' when the ordinary normal modes picture breaks down in highly excited vibrations. We use bifurcation analysis of semiclassical versions of the effective Hamiltonians used by spectroscopists to fit complex experimental spectra. Specific molecular systems are of interest for their relevance to combustion and the availability of high-quality experimental data. Because of its immense importance in combustion, the isomerizing acetylene/vinylidene system has been the object of long-standing experimental and theoretical research. We have made significant progress in systematically understanding the bending dynamics of the acetylene system. We have begun to make progress on extending our methodology to the full bend-stretch vibrational degrees of freedom, including dynamics with multiple wells and above barrier motion, and time-dependent dynamics. For this, development of our previous methods using spectroscopic fitting Hamiltonians is needed, for example, for systems with multiple barriers.

Michael E. Kellman

2005-06-17T23:59:59.000Z

351

Preconcentrator with high volume chiller for high vapor pressure particle detection  

Science Conference Proceedings (OSTI)

Apparatus and method for collecting particles of both high and low vapor pressure target materials entrained in a large volume sample gas stream. Large volume active cooling provides a cold air supply which is mixed with the sample gas stream to reduce the vapor pressure of the particles. In embodiments, a chiller cools air from ambient conditions to 0-15.degree. C. with the volumetric flow rate of the cold air supply being at least equal to the volumetric flow rate of the sample gas stream. In further embodiments an adsorption media is heated in at least two stages, a first of which is below a threshold temperature at which decomposition products of the high vapor pressure particle are generated.

Linker, Kevin L

2013-10-22T23:59:59.000Z

352

Fusion reactor high vacuum pumping: Charcoal cryosorber tritium exposure results  

SciTech Connect

Recent experiments, have shown the practically of using activated charcoal (coconut charcoal) at 4{degrees}K to pump helium and hydrogen isotopes for a fusion reactor. Both speed and capacity for deuterium/helium and tritium/helium-3 mixtures were shown to be satisfactory. The long term effects of tritium on the charcoal/cement system developed by Grumman and LLNL were not known and a program was undertaken to see what, if any, effect long term tritium exposure has on the cryosorber. Several charcoal on aluminum test samples were subjected to six months exposure of tritium at approximately 77{degrees}K. The tritium was scanned several times with a residual gas analyzer and the speed-capacity performance of the samples was measured before, approximately half way through and after the exposure. Modest effects were noted which would not seriously restrict charcoal's use as a cryosorber for fusion reactor high vacuum pumping applications. 4 refs., 8 figs.

Sedgley, D.W.; Walthers, C.R.; Jenkins, E.M. (Grumman Aerospace Corp., Bethpage, NY (United States))

1991-01-01T23:59:59.000Z

353

Strangeness at high temperatures: from hadrons to quarks  

E-Print Network (OSTI)

Appropriate combinations of up to fourth order cumulants of net strangeness fluctuations and their correlations with net baryon number and electric charge fluctuations, obtained from lattice QCD calculations, have been used to probe the strangeness carrying degrees of freedom at high temperatures. For temperatures up to the chiral crossover separate contributions of strange mesons and baryons can be well described by an uncorrelated gas of hadrons. Such a description breaks down in the chiral crossover region, suggesting that the deconfinement of strangeness takes place at the chiral crossover. On the other hand, the strangeness carrying degrees of freedom inside the quark gluon plasma can be described by a weakly interacting gas of quarks only for temperatures larger than twice the chiral crossover temperature. In the intermediate temperature window these observables show considerably richer structures, indicative of the strongly interacting nature of the quark gluon plasma.

A. Bazavov; H. -T. Ding; P. Hegde; O. Kaczmarek; F. Karsch; E. Laermann; Y. Maezawa; Swagato Mukherjee; H. Ohno; P. Petreczky; C. Schmidt; S. Sharma; W. Soeldner; M. Wagner

2013-04-26T23:59:59.000Z

354

A HIGH STELLAR OBLIQUITY IN THE WASP-7 EXOPLANETARY SYSTEM  

Science Conference Proceedings (OSTI)

We measure a tilt of 86 Degree-Sign {+-} 6 Degree-Sign between the sky projections of the rotation axis of the WASP-7 star and the orbital axis of its close-in giant planet. This measurement is based on observations of the Rossiter-McLaughlin (RM) effect with the Planet Finder Spectrograph on the Magellan II telescope. The result conforms with the previously noted pattern among hot-Jupiter hosts, namely, that the hosts lacking thick convective envelopes have high obliquities. Because the planet's trajectory crosses a wide range of stellar latitudes, observations of the RM effect can in principle reveal the stellar differential rotation profile; however, with the present data the signal of differential rotation could not be detected. The host star is found to exhibit radial-velocity noise ({sup s}tellar jitter{sup )} with an amplitude of Almost-Equal-To 30 m s{sup -1} over a timescale of days.

Albrecht, Simon; Winn, Joshua N.; Hirano, Teruyuki [Department of Physics, and Kavli Institute for Astrophysics and Space Research, Massachusetts Institute of Technology, Cambridge, MA 02139 (United States); Butler, R. Paul [Department of Terrestrial Magnetism, Carnegie Institution of Washington, 5241 Broad Branch Road NW, Washington, DC 20015 (United States); Crane, Jeffrey D.; Shectman, Stephen A.; Thompson, Ian B. [The Observatories of the Carnegie Institution of Washington, 813 Santa Barbara Street, Pasadena, CA 91101 (United States); Wittenmyer, Robert A. [Department of Astrophysics, School of Physics, University of NSW, 2052 (Australia)

2012-01-10T23:59:59.000Z

355

Kinetics driving high-density chlorine plasmas  

Science Conference Proceedings (OSTI)

A simple fluid model was developed in order to investigate the driving kinetics of neutral and charged species in high-density chlorine plasmas. It was found that the dissociation degree of Cl{sub 2} molecules is directly linked to the power balance of the discharge which controls the electron density. The model was also used to identify those reactions that could be neglected in the particle balance of charged species and those that must be included. Our results further indicate that diffusion losses need to be considered up to a pressure that depends on magnetic-field intensity and reactor aspect ratio. Finally, it is shown that the dominant charged carriers are linked to the dissociation level of Cl{sub 2} molecules.

Stafford, L.; Margot, J.; Vidal, F.; Chaker, M.; Giroux, K.; Poirier, J.-S.; Quintal-Leonard, A.; Saussac, J. [Department de physique, Universite de Montreal, Montreal, Quebec (Canada); INRS-Energie, Materiaux et Telecommunications, Varennes, Quebec (Canada); Department de physique, Universite de Montreal, Montreal, Quebec (Canada)

2005-09-15T23:59:59.000Z

356

Highly damped kinematic coupling for precision instruments  

SciTech Connect

A highly damped kinematic coupling for precision instruments. The kinematic coupling provides support while causing essentially no influence to its nature shape, with such influences coming, for example, from manufacturing tolerances, temperature changes, or ground motion. The coupling uses three ball-cone constraints, each combined with a released flexural degree of freedom. This arrangement enables a gain of higher load capacity and stiffness, but can also significantly reduce the friction level in proportion to the ball radius divided by the distance between the ball and the hinge axis. The blade flexures reduces somewhat the stiffness of the coupling and provides an ideal location to apply constrained-layer damping which is accomplished by attaching a viscoelastic layer and a constraining layer on opposite sides of each of the blade flexures. The three identical ball-cone flexures provide a damped coupling mechanism to kinematically support the projection optics system of the extreme ultraviolet lithography (EUVL) system, or other load-sensitive apparatus.

Hale, Layton C. (Livermore, CA); Jensen, Steven A. (Livermore, CA)

2001-01-01T23:59:59.000Z

357

Degree project in Communication Systems  

E-Print Network (OSTI)

physical devices utilizing common SCADA protocols. The testbed can then be used to analyze how cyber

Maguire Jr., Gerald Q.

358

Degree project in Communication Systems  

E-Print Network (OSTI)

identity management concept. In [53], Basescu et al. proposed a generic security management framework

Maguire Jr., Gerald Q.

359

FINDYOUR FOCUS. 184 degree programs  

E-Print Network (OSTI)

for the Big Apple. She didn't have a job lined up, or even a place to live. She soon flourished, advancing students will work in research labs for eight weeks under the direction of a WVU faculty research mentor

Mohaghegh, Shahab

360

3Degrees | Open Energy Information  

Open Energy Info (EERE)

(2010-08-03). "Intel, Kohl's, Whole Foods Top List of Green Power Purchasers, Again Environmental Management & Energy News Environmental Leader" "Member List" ...

Note: This page contains sample records for the topic "degrees fahrenheit high" 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

Undergraduate Programs Undergraduate Degree Programs  

E-Print Network (OSTI)

Marital Status: Married Citizenship: Canadian Languages: English and French Address: EC6 Physics Candu1 Tel: (905) 823-9040, ext. 34583 (Office) (905) 690-1512 (Home) Fax: (905) 403-7386 Email: Emile.Talbot@candu EXPERIENCE: Oct. 2011 ­ Present Candu Energy Inc., Sheridan Park 2285 Speakman Drive Mississauga, ON L5K 1B1

Heller, Barbara

362

Degree project in Communication Systems  

E-Print Network (OSTI)

and Technology, Norway & Prof. Gerald Q. Maguire Jr. Royal Institute of Technology, Sweden Supervisor: Dr. Mohammad Ullah Khan Norwegian University of Science and Technology, Norway August 10, 2011 #12;Abstract i ett givet sammanhang. ¨A andra sidan tydliga specifik

Maguire Jr., Gerald Q.

363

Diamond-free Degree Sequences  

E-Print Network (OSTI)

Miller,A. Prosser,P. DCS Technical Report Series pp 1 to 9 Dept of Computing Science, University of Glasgow

Miller, A.

364

Degree project in Communication Systems  

E-Print Network (OSTI)

to the customer. Additionally, the packaging keeps the product safe from the environment and also protects S I D D I Q I Smart Card Packaging Process Control System KTH Information and Communication Technology #12;Smart Card Packaging Process Control System Saad Ahmed Siddiqi August 1, 2012 Masters Thesis

Maguire Jr., Gerald Q.

365

Degree project in Communication Systems  

E-Print Network (OSTI)

controlled by their own remote control. It is often hard and/or painful to manage and utilize these devices of touchscreen mobile devices in order to provide an innovative means of control over the television, with remote control mobile applications running on an user's familiar device. A remote controller will also be sold

Maguire Jr., Gerald Q.

366

High Speed Electronics  

Science Conference Proceedings (OSTI)

High Speed Electronics. ... optic sampling system provides traceability for our electrical waveform measurements ... Metrology for Electronic Packaging. ...

2013-03-25T23:59:59.000Z

367

High power microwave generator  

DOE Patents (OSTI)

A microwave generator efficiently converts the energy of an intense relativistic electron beam (REB) into a high-power microwave emission using the Smith-Purcell effect which is related to Cerenkov radiation. Feedback for efficient beam bunching and high gain is obtained by placing a cylindrical Smith-Purcell transmission grating on the axis of a toroidal resonator. High efficiency results from the use of a thin cold annular highly-magnetized REB that is closely coupled to the resonant structure.

Ekdahl, C.A.

1983-12-29T23:59:59.000Z

368

High power microwave generator  

DOE Patents (OSTI)

A microwave generator efficiently converts the energy of an intense relativistic electron beam (REB) into a high-power microwave emission using the Smith-Purcell effect which is related to Cerenkov radiation. Feedback for efficient beam bunching and high gain is obtained by placing a cylindrical Smith-Purcell transmission grating on the axis of a toroidal resonator. High efficiency results from the use of a thin cold annular highly-magnetized REB that is closely coupled to the resonant structure.

Ekdahl, Carl A. (Albuquerque, NM)

1986-01-01T23:59:59.000Z

369

High Performance Computing in  

E-Print Network (OSTI)

High Performance Computing in Bioinformatics Thomas Ludwig (t.ludwig@computer.org) Ruprecht PART I: High Performance Computing Thomas Ludwig PART II: HPC Computing in Bioinformatics Alexandros #12;© Thomas Ludwig, Alexandros Stamatakis, GCB'04 3 PART I High Performance Computing Introduction

Stamatakis, Alexandros

370

High performance systems  

SciTech Connect

This document provides a written compilation of the presentations and viewgraphs from the 1994 Conference on High Speed Computing given at the High Speed Computing Conference, {open_quotes}High Performance Systems,{close_quotes} held at Gleneden Beach, Oregon, on April 18 through 21, 1994.

Vigil, M.B. [comp.

1995-03-01T23:59:59.000Z

371

Table Definitions, Sources, and Explanatory Notes  

Gasoline and Diesel Fuel Update (EIA)

LNG Storage Additions & Withdrawals LNG Storage Additions & Withdrawals Definitions Key Terms Definition Liquefied Natural Gas Natural gas (primarily methane) that has been liquefied by reducing its temperature to -260 degrees Fahrenheit at atmospheric pressure. Net Withdrawals The amount by which storage withdrawals exceed storage injections. Storage Additions Volumes of gas injected or otherwise added to underground natural gas reservoirs or liquefied natural gas storage. Storage Withdrawals Total volume of gas withdrawn from underground storage or from liquefied natural gas storage over a specified amount of time. For definitions of related energy terms, refer to the EIA Energy Glossary. Sources Form EIA-176, "Annual Report of Natural and Supplemental Gas Supply and Disposition"

372

Discovery of two candidate pulsar wind nebulae in very-high-energy gamma rays  

E-Print Network (OSTI)

We present the discovery of two very-high-energy gamma-ray sources in an ongoing systematic search for emission above 100 GeV from pulsar wind nebulae in survey data from the H.E.S.S. telescope array. Imaging Atmospheric Cherenkov Telescopes are ideal tools for searching for extended emission from pulsar wind nebulae in the very-high-energy regime. H.E.S.S., with its large field of view of 5 degrees and high sensitivity, gives new prospects for the search for these objects. An ongoing systematic search for very-high-energy emission from energetic pulsars over the region of the Galactic plane between -60 degrees wind nebulae, HESS J1718-385 and HESS J1809-193. H.E.S.S. has proven to be a suitable instrument for pulsar wind nebula searches.

H. E. S. S. Collaboration; :; F. Aharonian

2007-05-11T23:59:59.000Z

373

Relationship between swelling and irradiation creep in cold-worked PCA stainless steel irradiated to {approximately}178 dpa at {approximately}400{degrees}C  

Science Conference Proceedings (OSTI)

The eighth and final irradiation segment for pressurized tubes constructed from the fusion Prime Candidate Alloy (PCA) has been completed in FFTF. At 178 dpa and {approximately}400{degrees}C, the irradiation creep of 20% cold-worked PCA has become dominated by the {open_quotes}creep disappearance{close_quotes} phenomenon. The total diametral deformation rate has reached the limiting value of 0.33%/dpa at the three highest stress levels employed in this test. The stress-enhancement of swelling tends to camouflage the onset of creep disappearance, however, requiring the use of several non-traditional techniques to extract the creep coefficients. No failures occurred in these tubes, even though the swelling ranged from {approximately}20 to {approximately}40%.

Toloczko, M.B. [Univ. of California, Santa Barbara, CA (United States). Dept. of Chemical and Nuclear Engineering; Garner, F.A. [Pacific Northwest Lab., Richland, WA (United States)

1993-09-01T23:59:59.000Z

374

High-Dielectric Constant, High-Temperature Ceramic Capacitors for ...  

Science Conference Proceedings (OSTI)

Growth of Thick, On-Axis SiC Epitaxial Layers by High Temperature Halide CVD for High Voltage Power Devices · High-Dielectric Constant, High-Temperature ...

375

High efficiency shale oil recovery. Final report, January 1, 1992--June 30, 1993  

SciTech Connect

The Adams Counter-current shale oil recovery process is an improved retorting technology enabling highly efficient oil recovery from oil shale. The high efficiency results primarily from the following facts: it (1) recovers the ash heat to preheat the feed ore; (2) burns and uses the coke energy and (3) operates without using hot ash recycling as a heat carrier. This latter feature is doubly important, contributing to high oil yield and to the generation of highly reactive coke which can be burned below 1000{degree}F, avoiding the endothermal calcination of the mineral carbonates and helping to clean the ash of contaminants. This project demonstrates that oil shale can be retorted under the specified conditions and achieve the objectives of very high efficiency. The project accomplished the following: 51 quartz sand rotary kiln runs provided significant engineering data. A heat transfer value of 107 Btu/hr/ft{sup 2}/{degree}F was obtained at optimum RPM; eight oil shale samples were obtained and preliminary shakedown runs were made. Five of the samples were selected for kiln processing and twelve pyrolysis runs were made on the five different oil shales;average off recovery was 109% of Fisher Assay; retorted residue from all five samples was oxidized at approximately 1000{degree}F. The ash from these runs was oxidized to varying extents, depending on the oil shale and oxidizing temperatures. While 1000{degree}F is adequately hot to provide process heat from coke combustion for these ores, some Eastern oil shales, without mineral carbonates, may be oxidized at higher temperatures, perhaps 100--300 degrees hotter, to obtain a more complete oxidation and utilization of the coke.

Adams, D.C.

1993-09-29T23:59:59.000Z

376

Sealant materials for solid oxide fuels and other high-temperature ceramics  

DOE Green Energy (OSTI)

Glass-ceramic sealing materials have been developed with mechanical and chemical properties suitable for a variety of high-temperature applications. We have demonstrated the ability to tailor the thermal expansion coefficient between 8 and 12 x 10{sup -6}/{degrees}C, and the softening temperature can be adjusted such that the materials have suitable viscosities for a soft, compliant seal at temperatures ranging from 650 to 1000{degrees}C. These materials form excellent bonds to a variety of ceramics and metals during heating to the target operation temperature. They have limited reactivity with the fuel cell materials tested and are stable in both air and reducing environments.

Kueper, T.W.; Bloom, I.D.

1995-12-31T23:59:59.000Z

377

High Performance Computing  

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

Information Science, Computing, Applied Math » Information Science, Computing, Applied Math » High Performance Computing High Performance Computing Providing world-class high performance computing capability that enables unsurpassed solutions to complex problems of strategic national interest Gary Grider High Performance Computing Division Leader Randal Rheinheimer High Performance Computing Deputy Division Leader Contact Us Carol Hogsett Student/Internship Opportunities Email Division Office Email Managing world-class supercomputing centers Powerall simulations modeling Read caption + The Powerwall is used by LANL scientists to view objects and processes in 3D. High Performance Computing video 13:01 Gary Grider, HPC Divison Leader The High Performance Computing (HPC) Division supports the Laboratory mission by managing world-class Supercomputing Centers.

378

Brookhaven High Energy Physics  

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

High-Energy Physics High-Energy Physics High-energy physicists probe the properties and behavior of the most elementary particles in the universe. At the Alternating Gradient Synchrotron (AGS), they perform experiments of unique sensitivity using high-intensity, intermediate-energy beams. The AGS currently provides the world's most intense high-energy proton beam. It is also the world's most versatile accelerator, accelerating protons, polarized protons, and heavy ions to near the speed of light. Magnet system at Brookhaven used to measure the magnetic moment of the muon. Important discoveries in high-energy physics were made at the AGS within the last decade. An international collaboration, including key physicists from Brookhaven, performed a very high-precision measurement of a property

379

Strategy Guideline: Partnering for High Performance Homes  

SciTech Connect

High performance houses require a high degree of coordination and have significant interdependencies between various systems in order to perform properly, meet customer expectations, and minimize risks for the builder. Responsibility for the key performance attributes is shared across the project team and can be well coordinated through advanced partnering strategies. For high performance homes, traditional partnerships need to be matured to the next level and be expanded to all members of the project team including trades, suppliers, manufacturers, HERS raters, designers, architects, and building officials as appropriate. In an environment where the builder is the only source of communication between trades and consultants and where relationships are, in general, adversarial as opposed to cooperative, the chances of any one building system to fail are greater. Furthermore, it is much harder for the builder to identify and capitalize on synergistic opportunities. Partnering can help bridge the cross-functional aspects of the systems approach and achieve performance-based criteria. Critical success factors for partnering include support from top management, mutual trust, effective and open communication, effective coordination around common goals, team building, appropriate use of an outside facilitator, a partnering charter progress toward common goals, an effective problem-solving process, long-term commitment, continuous improvement, and a positive experience for all involved.

Prahl, D.

2013-01-01T23:59:59.000Z

380

Glossary | Building Energy Codes Program  

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

C-Factor C-Factor Time rate of steady-state heat flow through the unit area of a material or construction surfaces. Units of C-Factor are Btu/h x ft2 x degrees Fahrenheit. Note that the C-factor does not include soil or air films. CABO The Council of American Building Officials. Cavity Insulation Insulation installed between structural members such as wood studs, metal framing, and Z-clips. CDD Cooling degree day. See "Cooling Degree Days." CDD50 Cooling degree days base 50°F. See "Degree Day Base 50F." CE Combustion efficiency. Ceiling The ceiling requirements apply to portions of the roof and/or ceiling through which heat flows. Ceiling components include the interior surface of flat ceilings below attics, the interior surface of cathedral or vaulted

Note: This page contains sample records for the topic "degrees fahrenheit high" 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

Circuit for monitoring temperature of high-voltage equipment  

DOE Patents (OSTI)

This invention relates to an improved circuit for measuring temperature in a region at high electric potential and generating a read-out of the same in a region at lower potential. The circuit is specially designed to combine high sensitivity, stability, and accuracy. A major portion of the circuit situated in the high-potential region can take the form of an integrated circuit. The preferred form of the circuit includes an input section which is situated in the high-potential region and comprises a temperature-compensated thermocouple circuit for sensing temperature, an oscillator circuit for generating a train of ramp voltages whose rise time varies inversely with the thermocouple output, a comparator and switching circuit for converting the oscillator output to pulses whose frequency is proportional to the thermocouple output, and a light-emitting diode which is energized by these pulses. An optical coupling transmits the light pulses generated by the diode to an output section of the circuit, situated in a region at ground. The output section comprises means for converting the transmitted pulses to electrical pulses of corresponding frequency, means for amplifying the electrical pulses, and means for displaying the frequency of the same. The preferred embodiment of the overall circuit is designed so that the frequency of the output signal in hertz and tenths of hertz is equal to the sensed temperature in degrees and tenths of degrees.

Jacobs, Martin E. (Chillicothe, OH)

1976-01-01T23:59:59.000Z

382

Colours of the high country : exploring place through colour : a thesis presented in partial fulfilment of the requirements for the degree of Master of Design, Massey University, Wellington, New Zealand.  

E-Print Network (OSTI)

??In an age when digital colour and ready-made colour charts have resulted in the loss of the tactile qualities of colour this project investigates how… (more)

Johnstone, Kristy

2012-01-01T23:59:59.000Z

383

Study of high energy ion loss during hydrogen minority heating in TFTR  

DOE Green Energy (OSTI)

High energy ion loss during hydrogen minority ICRF heating is measured and compared with the loss of the D-D fusion products. During H minority heating a relatively large loss of high energy ions is observed at 45{degrees} below the outer midplane, with or without simultaneous NBI heating. This increase is most likely due to a loss of the minority tail protons, a possible model for this process is described.

Park, J.; Zweben, S.J.

1994-03-01T23:59:59.000Z

384

HIGH VOLTAGE, HIGH CURRENT SPARK GAP SWITCH  

DOE Patents (OSTI)

A high voltage and current spark gap switch comprising two main electrodes insulatingly supported in opposed spaced relationship and a middle electrode supported medially between the main electrodes and symmetrically about the median line of the main electrodes is described. The middle electrode has a perforation aligned with the median line and an irradiation electrode insulatingly supported in the body of the middle electrode normal to the median line and protruding into the perforation. (AEC)

Dike, R.S.; Lier, D.W.; Schofield, A.E.; Tuck, J.L.

1962-04-17T23:59:59.000Z

385

High output lamp with high brightness  

DOE Patents (OSTI)

An ultra bright, low wattage inductively coupled electrodeless aperture lamp is powered by a solid state RF source in the range of several tens to several hundreds of watts at various frequencies in the range of 400 to 900 MHz. Numerous novel lamp circuits and components are disclosed including a wedding ring shaped coil having one axial and one radial lead, a high accuracy capacitor stack, a high thermal conductivity aperture cup and various other aperture bulb configurations, a coaxial capacitor arrangement, and an integrated coil and capacitor assembly. Numerous novel RF circuits are also disclosed including a high power oscillator circuit with reduced complexity resonant pole configuration, parallel RF power FET transistors with soft gate switching, a continuously variable frequency tuning circuit, a six port directional coupler, an impedance switching RF source, and an RF source with controlled frequency-load characteristics. Numerous novel RF control methods are disclosed including controlled adjustment of the operating frequency to find a resonant frequency and reduce reflected RF power, controlled switching of an impedance switched lamp system, active power control and active gate bias control.

Kirkpatrick, Douglas A. (Great Falls, VA); Bass, Gary K. (Mt. Airy, MD); Copsey, Jesse F. (Germantown, MD); Garber, Jr., William E. (Poolesville, MD); Kwong, Vincent H. (Vancouver, CA); Levin, Izrail (Silver Spring, MD); MacLennan, Donald A. (Gaithersburg, MD); Roy, Robert J. (Frederick, MD); Steiner, Paul E. (Olney, MD); Tsai, Peter (Olney, MD); Turner, Brian P. (Damascus, MD)

2002-01-01T23:59:59.000Z

386

Steady State Microbunching for High Brilliance and High Repetition Rate Storage Ring-Based Light Sources  

SciTech Connect

Electron-based light sources have proven to be effective sources of high brilliance, high frequency radiation. Such sources are typically either linac-Free Electron Laser (FEL) or storage ring types. The linac-FEL type has high brilliance (because the beam is microbunched) but low repetition rate. The storage ring type has high repetition rate (rapid beam circulation) but comparatively low brilliance or coherence. We propose to explore the feasibility of a microbunched beam in a storage ring that promises high repetition rate and high brilliance. The steady-state-micro-bunch (SSMB) beam in storage ring could provide CW sources for THz, EUV, or soft X-rays. Several SSMB mechanisms have been suggested recently, and in this report, we review a number of these SSMB concepts as promising directions for high brilliance, high repetition rate light sources of the future. The trick of SSMB lies in the RF system, together with the associated synchrotron beam dynamics, of the storage ring. Considering various different RF arrangements, there could be considered a number of scenarios of the SSMB. In this report, we arrange these scenarios more or less in order of the envisioned degree of technical challenge to the RF system, and not in the chronological order of their original references. Once the stored beam is steady-state microbunched in a storage ring, it passes through a radiator repeatedly every turn (or few turns). The radiator extracts a small fraction of the beam energy as coherent radiation with a wavelength corresponding to the microbunched period of the beam. In contrast to an FEL, this radiator is not needed to generate the microbunching (as required e.g. by SASE FELs or seeded FELs), so the radiator can be comparatively simple and short.

Chao, Alex; Ratner, Daniel; /SLAC; Jiao, Yi; /Beijing, Inst. High Energy Phys.

2012-09-06T23:59:59.000Z

387

High temperature refrigerator  

SciTech Connect

A high temperature magnetic refrigerator which uses a Stirling-like cycle in which rotating magnetic working material is heated in zero field and adiabatically magnetized, cooled in high field, then adiabatically demagnetized. During this cycle said working material is in heat exchange with a pumped fluid which absorbs heat from a low temperature heat source and deposits heat in a high temperature reservoir. The magnetic refrigeration cycle operates at an efficiency 70% of Carnot.

Steyert, Jr., William A. (Los Alamos, NM)

1978-01-01T23:59:59.000Z

388

High Energy Physics  

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

Untitled Document Argonne Logo DOE Logo High Energy Physics Division Home Division ES&H Personnel Publications HEP Awards HEP Computing HEP Committees Administration...

389

High-Tc Superconductor  

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

Synchrotron Radiation Laboratory, Stanford University, Stanford, CA 94305 High-temperature superconductors (HTSC's), following their remarkable discovery in 1986, continue to be at...

390

.NET High Performance Computing.  

E-Print Network (OSTI)

?? Graphics Processing Units (GPUs) have been extensively applied in the High Performance Computing (HPC) community. HPC applications require additional special programming environments to improve… (more)

Ou, Hsuan-Hsiu

2012-01-01T23:59:59.000Z

391

High-Dose Dosimetry  

Science Conference Proceedings (OSTI)

... web page below. Service descriptions and price schedule for NIST high-dose services are found in this link. The intention ...

2013-03-01T23:59:59.000Z

392

High Temperature Corrosion  

Science Conference Proceedings (OSTI)

Oct 18, 2010 ... Protective Coatings for Corrosion Resistance at High Temperatures: Vilupanur Ravi1; Thuan Nguyen1; Alexander Ly1; Kameron Harmon1; ...

393

High Performance Tooling Materials  

Science Conference Proceedings (OSTI)

High performance tools are necessary for the successful manufacturing of every consumer product as well as oil drilling and mining operations. Increasing ...

394

High power, high frequency, vacuum flange  

DOE Patents (OSTI)

This invention is comprised of an improved waveguide flange is disclosed for high power operation that helps prevent arcs from being initiated at the junctions between waveguide sections. The flanges at the end of the waveguide sections have counterbores surrounding the waveguide tubes. When the sections are bolted together the counterbores form a groove that holds a fully annealed copper gasket. Each counterbore has a beveled step that is specially configured to insure the gasket forms a metal-to-metal vacuum seal without gaps or sharp edges. The resultant inner surface of the waveguide is smooth across the junctions between waveguide sections, and arcing is prevented.

Felker, B.; McDaniel, M.

1991-12-31T23:59:59.000Z

395

High density photovoltaic  

DOE Green Energy (OSTI)

Photovoltaic technology can directly generate high voltages in a solid state material through the series interconnect of many photovoltaic diodes. We are investigating the feasibility of developing an electrically isolated, high-voltage power supply using miniature photovoltaic devices that convert optical energy to electrical energy.

Haigh, R.E.; Jacobson, G.F.; Wojtczuk, S. [Spire Corp., Bedford, MA (United States)

1997-10-14T23:59:59.000Z

396

High temperature sensor  

DOE Patents (OSTI)

A high temperature sensor includes a pair of electrical conductors separated by a mass of electrical insulating material. The insulating material has a measurable resistivity within the sensor that changes in relation to the temperature of the insulating material within a high temperature range (1,000 to 2,000 K.). When required, the sensor can be encased within a ceramic protective coating.

Tokarz, Richard D. (West Richland, WA)

1982-01-01T23:59:59.000Z

397

Electrolysis – High Temperature – Hydrogen  

INL has developed a high-temperature process the utilizes solid oxide fuel cells that are operated in the electrolytic mode. The first process includes combining a high-temperature heat source (e.g. nuclear reactor) with a hydrogen production facility ...

398

Polarisation Transfer in Proton Compton Scattering at High Momentum Transfer  

DOE Green Energy (OSTI)

The Jefferson Lab Hall A experiment E99-114 comprised a series of measurements to explore proton Compton scattering at high momentum transfer. For the first time, the polarisation transfer observables in the p (~ 0 ~ p) reaction were measured in the GeV energy range, where it is believed that quark-gluon degrees of freedom begin to dominate. The experiment utilised a circularly polarised photon beam incident on a liquid hydrogen target, with the scattered photon and recoil proton detected in a lead-glass calorimeter and a magnetic spectrometer, respectively.

David Hamilton

2004-12-31T23:59:59.000Z

399

Letter Report on Metallurgical Examination of the High Fluence RPV  

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

Report on Metallurgical Examination of the High Fluence RPV Report on Metallurgical Examination of the High Fluence RPV Specimens From the Ringhals Nuclear Reactors Letter Report on Metallurgical Examination of the High Fluence RPV Specimens From the Ringhals Nuclear Reactors Regulations which govern the operation of commercial nuclear power plants require conservative margins of fracture toughness, both during normal operation and under accident scenarios. In the irradiated condition, the fracture toughness of the RPV may be severely degraded, with the degree of toughness loss dependent on the radiation sensitivity of the materials. As stated in previous progress reports, the available embrittlement predictive models, e.g. [1], and our present understanding of radiation damage are not fully quantitative, and do not treat all potentially significant variables

400

Enhancement of the absorption of CO{sub 2} in alkaline buffers by organic solutes: Relation with degree of dissociation and molecular OH density  

SciTech Connect

Absorption of CO{sub 2} in a wetted-wall column by 0.5 M Na{sub 2}CO{sub 3}/0.5 M NaHCO{sub 3} buffer with and without various concentrations of saccharose, fructose, glucose, formaldehyde, glycerin, methanol, or ethanol was measured under conditions in which the reaction of CO{sub 2} was of pseudo-first-order. For the purposes of comparison, experiments were also carried out with arsenite in both buffer and pure water. For all of these solutes, the absorption enhancement factor increased with solute concentration. Rate constants k{sub c} for the overall reaction were obtained by fitting Danckwerts` expression for absorption to the experimental data, and correlation of k{sub c} with solute concentration then afforded rate constants k{sub cat} for the catalyzed reactions. For each solute, an empirical correlation was found between the absorption enhancement factor and Hatta numbers calculated from the rate constant for the uncatalyzed reaction and from k = k{sub cat}[cat]. The notion that the enhancement of absorption by acid-base reaction is facilitated by dipole-dipole interaction between the solutes and CO{sub 2} is supported by an empirical correlation relating k{sub cat} to the degree of dissociation of the solute and the density of OH groups in the solute molecule.

Vazquez, G.; Chenlo, F.; Pereira, G. [Univ. of Santiago de Compostela (Spain). Dept. of Chemical Engineering

1997-06-01T23:59:59.000Z

Note: This page contains sample records for the topic "degrees fahrenheit high" 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

Changes in char structure during the gasification of a Victorian brown coal in steam and oxygen at 800{degree}C  

Science Conference Proceedings (OSTI)

Char structure is an important factor influencing its reactivity during gasification. This study aims to investigate the changes in char structure during the gasification of brown coal. A Victorian brown coal was gasified in a fluidized-bed/fixed-bed reactor at 800{degree}C in atmospheres containing 15% H{sub 2}O, 2000 ppm O{sub 2}, or 15% H{sub 2}O and 2000 ppm O{sub 2}, respectively. Although the char gasification in 2000 ppm O{sub 2} was mainly rate-limited by the external diffusion of O{sub 2}, the char-H{sub 2}O reaction was mainly rate-limited by the chemical reactions. The structural features of char at different levels of char gasification conversion were examined with FT-Raman spectroscopy. Our results show that the chars from the gasification in the mixture of 2000 ppm O{sub 2} and 15% H{sub 2}O had almost the same features as the chars from the gasification in 15% H{sub 2}O alone when the same levels of char conversion were achieved. Both the thermal decomposition of char and the char gasification reactions could result in changes in char structure during gasification. 29 refs., 5 figs., 1 tab.

Xin Guo; Hui Ling Tay; Shu Zhang; Chun-Zhu Li [Monash University, Vic. (Australia). Department of Chemical Engineering

2008-11-15T23:59:59.000Z

402

Solar wind suprathermal electron Stahl widths across high-speed stream structures  

SciTech Connect

Suprathermal electrons (100-1500 eV) observed in the solar wind typically show a strahl distribution, that is, a beam directed away from the Sun along the magnetic field direction. The strahl width observed at 1 AU is highly variable, ranging from 10-70 degrees. The obsenred finite width of the strahl results from the competition between beam focusing as the interplanetary magnetic field strength drops with distance from the Sun, and pitch-angle scattering as the beam interacts with the solar wind plasma in transit from the sun. Here we examine strahl width, observed with ACE SWEPAM across high-speed stream structures to investigate variations in electron scattering as a function of local plasma characteristics. We find that narrow strahls (less than 20 degrees wide), indicating reduced scattering, are observed within high-speed streams. Narrow strahls are also observed in both very low temperature solar wind, in association with ICMEs. Case studies of high-speed streams typically show the strahl narrowing at the leading edge of the stream. In some cases, the strahl narrows at the reverse shock or pressure wave, in other cases at the stream interface. The narrowing can either occur discontinuously or gradually over a period of hours. Within the high-speed wind, the strahl remains narrow for a period of hours to days, and then gradually broadens. The strahl width is roughly constant at all energies across these structures. For some fraction of high-speed streams, counterstreaming is associated with passage of the corotating interaction region. In these cases, we find the widths of the two counterstreaming beams frequently differ by more than 40 degrees. This dramatic difference in strahl width contrasts with observations in the solar wind as a whole, in which counterstreaming strahls typically differ in width by less than 20 degrees.

Skoug, Ruth M [Los Alamos National Laboratory; Steinberg, John T [Los Alamos National Laboratory; Goodrich, Katherine A [Los Alamos National Laboratory; Anderson, Brett R [DARTMUTH UNIV.

2011-01-03T23:59:59.000Z

403

High Performance Sustainable Buildings  

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

become a High Performance Sustainable Building in 2013. On the former County landfill, a photovoltaic array field uses solar energy to provide power for Los Alamos County and the...

404

High Performance Computing  

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

High Performance Computing Managing world-class supercomputing centers Read caption + The Powerwall is used by LANL scientists to view objects and processes in 3D. 13:01 Gary...

405

Creating high performance enterprises  

E-Print Network (OSTI)

How do enterprises successfully conceive, design, deliver, and operate large-scale, engineered systems? These large-scale projects often involve high complexity, significant technical challenges, a large number of diverse ...

Stanke, Alexis K. (Alexis Kristen), 1977-

2006-01-01T23:59:59.000Z

406

High pressure furnace  

DOE Patents (OSTI)

A high temperature high pressure furnace has a hybrid partially externally heated construction. A metallic vessel fabricated from an alloy having a composition of at least 45% nickel, 15% chrome, and 10% tungsten is utilized (the preferred alloy including 55% nickel, 22% chrome, 14% tungsten, 2% molybdenum, 3% iron (maximum) and 5% cobalt (maximum). The disclosed alloy is fabricated into 11/4 or 2 inch, 32 mm or 50 mm bar stock and has a length of about 22 inches, 56 cm. This bar stock has an aperture formed therein to define a closed high temperature, high pressure oxygen chamber. The opposite and closed end of the vessel is provided with a small blind aperture into which a thermocouple can be inserted. The closed end of the vessel is inserted into an oven, preferably heated by standard nickel chrome electrical elements and having a heavily insulated exterior.

Morris, Donald E. (Kensington, CA)

1993-01-01T23:59:59.000Z

407

High pressure oxygen furnace  

DOE Patents (OSTI)

A high temperature high pressure oxygen furnace having a hybrid partially externally heated construction is disclosed. A metallic bar fabricated from an alloy having a composition of at least 45% nickel, 15% chrome, and 10% tungsten is utilized, the preferred alloy including 55% nickel, 22% chrome, 14% tungsten, 2% molybdenum, 3% iron (maximum) and 5% cobalt (maximum). The disclosed alloy is fabricated into 11/4 inch bar stock and has a length of about 17 inches. This bar stock is gun drilled for over 16 inches of its length with 0.400 inch aperture to define a closed high temperature, high pressure oxygen chamber. The opposite and closed end of the bar is provided with a small support aperture into which both a support and a thermocouple can be inserted. The closed end of the gun drilled bar is inserted into an oven, preferably heated by standard nickel chrome electrical elements and having a heavily insulated exterior. 5 figs.

Morris, D.E.

1992-07-14T23:59:59.000Z

408

High pressure oxygen furnace  

DOE Patents (OSTI)

A high temperature high pressure oxygen furnace having a hybrid partially externally heated construction is disclosed. A metallic bar fabricated from an alloy having a composition of at least 45% nickel, 15% chrome, and 10% tungsten is utilized (the preferred alloy including 55% nickel, 22% chrome, 14% tungsten, 2% molybdenum, 3% iron (maximum) and 5% cobalt (maximum). The disclosed alloy is fabricated into 11/4 inch bar stock and has a length of about 17 inches. This bar stock is gun drilled for over 16 inches of its length with 0.400 inch aperture to define a closed high temperature, high pressure oxygen chamber. The opposite and closed end of the bar is provided with a small support aperture into which both a support and a thermocouple can be inserted. The closed end of the gun drilled bar is inserted into an oven, preferably heated by standard nickel chrome electrical elements and having a heavily insulated exterior.

Morris, Donald E. (Kensington, CA)

1992-01-01T23:59:59.000Z

409

High pressure furnace  

DOE Patents (OSTI)

A high temperature high pressure furnace has a hybrid partially externally heated construction. A metallic vessel fabricated from an alloy having a composition of at least 45% nickel, 15% chrome, and 10% tungsten is utilized (the preferred alloy including 55% nickel, 22% chrome, 14% tungsten, 2% molybdenum, 3% iron (maximum) and 5% cobalt (maximum)). The disclosed alloy is fabricated into 11/4 or 2 inch, 32 mm or 50 mm bar stock and has a length of about 22 inches, 56 cm. This bar stock has an aperture formed therein to define a closed high temperature, high pressure oxygen chamber. The opposite and closed end of the vessel is provided with a small blind aperture into which a thermocouple can be inserted. The closed end of the vessel is inserted into an oven, preferably heated by standard nickel chrome electrical elements and having a heavily insulated exterior. 19 figures.

Morris, D.E.

1993-09-14T23:59:59.000Z

410

High-temperature sensor  

DOE Patents (OSTI)

A high temperature sensor is described which includes a pair of electrical conductors separated by a mass of electrical insulating material. The insulating material has a measurable resistivity within the sensor that changes in relation to the temperature of the insulating material within a high temperature range (1000 to 2000/sup 0/K). When required, the sensor can be encased within a ceramic protective coating.

Not Available

1981-01-29T23:59:59.000Z

411

High Performance Window Attachments  

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

High Performance Window High Performance Window Attachments D. Charlie Curcija Lawrence Berkeley National Laboratory dccurcija@lbl.gov 510-495-2602 April 4, 2013 2 | Building Technologies Office eere.energy.gov Purpose & Objectives Impact of Project: * Motivate manufacturers to make improvements in Window systems U-Factors, SHGC and daylighting utilization * Increase awareness of benefits from energy efficient window attachments Problem Statement: * A wide range of residential window attachments are available, but they have widely unknown

412

High Burnup Effects Program  

Science Conference Proceedings (OSTI)

This is the final report of the High Burnup Effects Program (HBEP). It has been prepared to present a summary, with conclusions, of the HBEP. The HBEP was an international, group-sponsored research program managed by Battelle, Pacific Northwest Laboratories (BNW). The principal objective of the HBEP was to obtain well-characterized data related to fission gas release (FGR) for light water reactor (LWR) fuel irradiated to high burnup levels. The HBEP was organized into three tasks as follows: Task 1 -- high burnup effects evaluations; Task 2 -- fission gas sampling; and Task 3 -- parameter effects study. During the course of the HBEP, a program that extended over 10 years, 82 fuel rods from a variety of sources were characterized, irradiated, and then examined in detail after irradiation. The study of fission gas release at high burnup levels was the principal objective of the program and it may be concluded that no significant enhancement of fission gas release at high burnup levels was observed for the examined rods. The rim effect, an as yet unquantified contributor to athermal fission gas release, was concluded to be the one truly high-burnup effect. Though burnup enhancement of fission gas release was observed to be low, a full understanding of the rim region and rim effect has not yet emerged and this may be a potential area of further research. 25 refs., 23 figs., 4 tabs.

Barner, J.O.; Cunningham, M.E.; Freshley, M.D.; Lanning, D.D.

1990-04-01T23:59:59.000Z

413

The Impact of Climate on Atmospheric Emissions: Constructing an Index of Heating Degrees for 21 OECD Countries from 1960 to 2005  

Science Conference Proceedings (OSTI)

The impact of climate on atmospheric emissions is a highly neglected aspect in research on environmental performance. Cold winters may be a major factor for the increase in heating needs and energy consumption, which may in turn lead to ...

Detlef Jahn

2013-04-01T23:59:59.000Z

414

High frequency breakdown voltage  

SciTech Connect

This report contains information about the effect of frequency on the breakdown voltage of an air gap at standard pressure and temperature, 76 mm Hg and O{degrees}C, respectively. The frequencies of interest are 47 MHz and 60 MHz. Additionally, the breakdown in vacuum is briefly considered. The breakdown mechanism is explained on the basis of collision and ionization. The presence of the positive ions produced by ionization enhances the field in the gap, and thus determines the breakdown. When a low-frequency voltage is applied across the gap, the breakdown mechanism is the same as that caused by the DC or static voltage. However, when the frequency exceeds the first critical value f{sub c}, the positive ions are trapped in the gap, increasing the field considerably. This makes the breakdown occur earlier; in other words, the breakdown voltage is lowered. As the frequency increases two decades or more, the second critical frequency, f{sub ce}, is reached. This time the electrons start being trapped in the gap. Those electrons that travel multiple times across the gap before reaching the positive electrode result in an enormous number of electrons and positive ions being present in the gap. The result is a further decrease of the breakdown voltage. However, increasing the frequency does not decrease the breakdown voltage correspondingly. In fact, the associated breakdown field intensity is almost constant (about 29 kV/cm).The reason is that the recombination rate increases and counterbalances the production rate, thus reducing the effect of the positive ions` concentration in the gap. The theory of collision and ionization does not apply to the breakdown in vacuum. It seems that the breakdown in vacuum is primarily determined by the irregularities on the surfaces of the electrodes. Therefore, the effect of frequency on the breakdown, if any, is of secondary importance.

Chu, Thanh Duy

1992-03-01T23:59:59.000Z

415

High Temperature Capacitor Development  

Science Conference Proceedings (OSTI)

The absence of high-temperature electronics is an obstacle to the development of untapped energy resources (deep oil, gas and geothermal). US natural gas consumption is projected to grow from 22 trillion cubic feet per year (tcf) in 1999 to 34 tcf in 2020. Cumulatively this is 607 tcf of consumption by 2020, while recoverable reserves using current technology are 177 tcf. A significant portion of this shortfall may be met by tapping deep gas reservoirs. Tapping these reservoirs represents a significant technical challenge. At these depths, temperatures and pressures are very high and may require penetrating very hard rock. Logistics of supporting 6.1 km (20,000 ft) drill strings and the drilling processes are complex and expensive. At these depths up to 50% of the total drilling cost may be in the last 10% of the well depth. Thus, as wells go deeper it is increasingly important that drillers are able to monitor conditions down-hole such as temperature, pressure, heading, etc. Commercial off-the-shelf electronics are not specified to meet these operating conditions. This is due to problems associated with all aspects of the electronics including the resistors and capacitors. With respect to capacitors, increasing temperature often significantly changes capacitance because of the strong temperature dependence of the dielectric constant. Higher temperatures also affect the equivalent series resistance (ESR). High-temperature capacitors usually have low capacitance values because of these dielectric effects and because packages are kept small to prevent mechanical breakage caused by thermal stresses. Electrolytic capacitors do not operate at temperatures above 150oC due to dielectric breakdown. The development of high-temperature capacitors to be used in a high-pressure high-temperature (HPHT) drilling environment was investigated. These capacitors were based on a previously developed high-voltage hybridized capacitor developed at Giner, Inc. in conjunction with a unique high-temperature electrolyte developed during the course of the program. During this program the feasibility of operating a high voltage hybridized capacitor at 230oC was demonstrated. Capacitor specifications were established in conjunction with potential capacitor users. A method to allow for capacitor operation at both ambient and elevated temperatures was demonstrated. The program was terminated prior to moving into Phase II due to a lack of cost-sharing funds.

John Kosek

2009-06-30T23:59:59.000Z

416

High Risk Plan  

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

Risk Plan Risk Plan John Bashista Melissa Rider Jeff Davis Timeline to date * OMB memo on Improving Government Acquisition issued July 29, 2009 - Review existing contracts and acquisition practices to save 7% of baseline contract spending (3.5% in FY 2010 and 3.5% in FY 2011) - Reduce high risk contracts by 10% the share of dollars obligated in FY2010 - Final plan was due and submitted on November 2, 2009 - OMB reviewed and requested revision Dec 23, 2009 - Revision submitted April 21, 2010 M&Os are an Issue * With respect to reductions in high risk contracting strategies, the M&O contracts was also a challenge since the opportunity to further influence competition and contract type was highly constrained. The Department had already competed approximately 85 percent of its M&O

417

High brightness electron accelerator  

DOE Patents (OSTI)

A compact high brightness linear accelerator is provided for use, e.g., in a free electron laser. The accelerator has a first plurality of acclerating cavities having end walls with four coupling slots for accelerating electrons to high velocities in the absence of quadrupole fields. A second plurality of cavities receives the high velocity electrons for further acceleration, where each of the second cavities has end walls with two coupling slots for acceleration in the absence of dipole fields. The accelerator also includes a first cavity with an extended length to provide for phase matching the electron beam along the accelerating cavities. A solenoid is provided about the photocathode that emits the electrons, where the solenoid is configured to provide a substantially uniform magnetic field over the photocathode surface to minimize emittance of the electrons as the electrons enter the first cavity.

Sheffield, R.L.; Carlsten, B.E.; Young, L.M.

1992-12-31T23:59:59.000Z

418

High resolution data acquisition  

DOE Patents (OSTI)

A high resolution event interval timing system measures short time intervals such as occur in high energy physics or laser ranging. Timing is provided from a clock pulse train and analog circuitry for generating a triangular wave synchronously with the pulse train. The triangular wave has an amplitude and slope functionally related to the time elapsed during each clock pulse in the train. A converter forms a first digital value of the amplitude and slope of the triangle wave at the start of the event interval and a second digital value of the amplitude and slope of the triangle wave at the end of the event interval. A counter counts the clock pulse train during the interval to form a gross event interval time. A computer then combines the gross event interval time and the first and second digital values to output a high resolution value for the event interval.

Thornton, G.W.; Fuller, K.R.

1992-12-31T23:59:59.000Z

419

High-energy detector  

SciTech Connect

The preferred embodiments are directed to a high-energy detector that is electrically shielded using an anode, a cathode, and a conducting shield to substantially reduce or eliminate electrically unshielded area. The anode and the cathode are disposed at opposite ends of the detector and the conducting shield substantially surrounds at least a portion of the longitudinal surface of the detector. The conducting shield extends longitudinally to the anode end of the detector and substantially surrounds at least a portion of the detector. Signals read from one or more of the anode, cathode, and conducting shield can be used to determine the number of electrons that are liberated as a result of high-energy particles impinge on the detector. A correction technique can be implemented to correct for liberated electron that become trapped to improve the energy resolution of the high-energy detectors disclosed herein.

Bolotnikov, Aleksey E. (South Setauket, NY); Camarda, Giuseppe (Farmingville, NY); Cui, Yonggang (Upton, NY); James, Ralph B. (Ridge, NY)

2011-11-22T23:59:59.000Z

420

High strength alloys  

DOE Patents (OSTI)

High strength metal alloys are described herein. At least one composition of a metal alloy includes chromium, nickel, copper, manganese, silicon, niobium, tungsten and iron. System, methods, and heaters that include the high strength metal alloys are described herein. At least one heater system may include a canister at least partially made from material containing at least one of the metal alloys. At least one system for heating a subterranean formation may include a tubular that is at least partially made from a material containing at least one of the metal alloys.

Maziasz, Phillip James [Oak Ridge, TN; Shingledecker, John Paul [Knoxville, TN; Santella, Michael Leonard [Knoxville, TN; Schneibel, Joachim Hugo [Knoxville, TN; Sikka, Vinod Kumar [Oak Ridge, TN; Vinegar, Harold J [Bellaire, TX; John, Randy Carl [Houston, TX; Kim, Dong Sub [Sugar Land, TX

2010-08-31T23:59:59.000Z

Note: This page contains sample records for the topic "degrees fahrenheit high" 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

High intensity hadron accelerators  

SciTech Connect

This rapporteur report consists mainly of two parts. Part I is an abridged review of the status of all High Intensity Hadron Accelerator projects in the world in semi-tabulated form for quick reference and comparison. Part II is a brief discussion of the salient features of the different technologies involved. The discussion is based mainly on my personal experiences and opinions, tempered, I hope, by the discussions I participated in in the various parallel sessions of the workshop. In addition, appended at the end is my evaluation and expression of the merits of high intensity hadron accelerators as research facilities for nuclear and particle physics.

Teng, L.C.

1989-05-01T23:59:59.000Z

422

High Availability Electronics Standards  

Science Conference Proceedings (OSTI)

Availability modeling of the proposed International Linear Collider (ILC) predicts unacceptably low uptime with current electronics systems designs. High Availability (HA) analysis is being used as a guideline for all major machine systems including sources, utilities, cryogenics, magnets, power supplies, instrumentation and controls. R&D teams are seeking to achieve total machine high availability with nominal impact on system cost. The focus of this paper is the investigation of commercial standard HA architectures and packaging for Accelerator Controls and Instrumentation. Application of HA design principles to power systems and detector instrumentation are also discussed.

Larsen, R.S.; /SLAC

2006-12-13T23:59:59.000Z

423

High-beta tokamak  

DOE Green Energy (OSTI)

Calculations are made to study the stability and accessibility of tokamak plasmas in the high energy density regime which is desirable for economical reactor operation. Results are given from flux conserving tokamak (FCT) models, classical models, and more complete models with spatially resolved (R,Z) transport, including effects from sawtooth oscillations and magnetic islands. MHD equilibrium, stability, and transport calculations are made to study the accessibility and behavior of high-beta tokamak plasmas in the range {beta} {approx} 5-15%. For next-generation devices, beta values of, at least, 8% appear to be accessible and stable if there is a conducting surface nearby.

Dory, R.A. [Oak Ridge National Laboratory (ORNL); Berger, D.P. [Oak Ridge National Laboratory (ORNL); Charlton, L. A. [Oak Ridge National Laboratory (ORNL); Hogan, J.T. [Oak Ridge National Laboratory (ORNL); Munro, J.K. [Oak Ridge National Laboratory (ORNL); Nelson, D. B. [Oak Ridge National Laboratory (ORNL); Peng, Yueng Kay Martin [ORNL; Sigma, D.J. [Oak Ridge National Laboratory (ORNL); Strickler, Dennis J [ORNL

1979-01-01T23:59:59.000Z

424

VHISPER: a high speed dual mode VLIW and Superscalar Processor  

E-Print Network (OSTI)

Considerable effort has gone into streamlining the logic in pipelined processors. Further Increases in speed for a pipelined processor will probably come about from. either increasing the pipeline depth, superpipelining or increasing the width of tile datapath or control path. The later can be achieved by either issuing more than one instruction per cycle, Superscalar, or by using a VLIW (Very Long Instruction Word) architecture in which many operations are performed in parallel by a single instruction. To achieve an overall gain in performance, significant increases in speed must be accompanied) by highly utilized resources. Idle resources contribute little to performance while increasing overall system costs and power consumption. As pipeline depth increases, a single instruction stream call riot keep all tile pipeline stages in a processor fully utilized. Control and data dependencies within the instruction stream limit the number of instructions that can be active for a given instruction stream. So better functional utilization can be achieved by using instructions from multiple streams. A new instruction issue scheme using multiple threads is presented for a dual mode processor. VHISPER, VLIW High speed Superscale Processor. The scheme is designed to increase throughout and maintain a fairly resource utilization. A multithread VHISPER architecture is modeled in Verilog and the instruction issue scheme is tested on this model. Obtained results indicate that VHISPER performs 43% better in the VLIW mode than in the 2nd degree Superscalar mode and 25 % better than in the 3rd degree Superscale mode.

Mellacheruvu, Rajesh Kumar

1994-01-01T23:59:59.000Z

425

Two-phase chromium-niobium alloys exhibiting improved mechanical properties at high temperatures  

DOE Patents (OSTI)

The specification discloses chromium-niobium alloys which exhibit improved mechanical properties at high temperatures in the range of 1250.degree. C. and improved room temperature ductility. The alloys contain a Cr.sub.2 Nb-rich intermetallic phase and a Cr-rich phase with an overall niobium concentration in the range of from about 5 to about 18 at. %. The high temperature strength is substantially greater than that of state of the art nickel-based superalloys for enhanced high temperature service. Further improvements in the properties of the compositions are obtained by alloying with rhenium and aluminum; and additional rare-earth and other elements.

Liu, Chain T. (Oak Ridge, TN); Takeyama, Masao (Tokyo, JP)

1994-01-01T23:59:59.000Z

426

High Performance Windows Volume Purchase: About the High Performance  

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

High Performance Windows Volume Purchase: About the High Performance Windows Volume Purchase: About the High Performance Windows Volume Purchase Program to someone by E-mail Share High Performance Windows Volume Purchase: About the High Performance Windows Volume Purchase Program on Facebook Tweet about High Performance Windows Volume Purchase: About the High Performance Windows Volume Purchase Program on Twitter Bookmark High Performance Windows Volume Purchase: About the High Performance Windows Volume Purchase Program on Google Bookmark High Performance Windows Volume Purchase: About the High Performance Windows Volume Purchase Program on Delicious Rank High Performance Windows Volume Purchase: About the High Performance Windows Volume Purchase Program on Digg Find More places to share High Performance Windows Volume Purchase:

427

Alternative Fuels Data Center: High Occupancy Vehicle (HOV) and High  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

High Occupancy Vehicle High Occupancy Vehicle (HOV) and High Occupancy Toll (HOT) Lane Exemption to someone by E-mail Share Alternative Fuels Data Center: High Occupancy Vehicle (HOV) and High Occupancy Toll (HOT) Lane Exemption on Facebook Tweet about Alternative Fuels Data Center: High Occupancy Vehicle (HOV) and High Occupancy Toll (HOT) Lane Exemption on Twitter Bookmark Alternative Fuels Data Center: High Occupancy Vehicle (HOV) and High Occupancy Toll (HOT) Lane Exemption on Google Bookmark Alternative Fuels Data Center: High Occupancy Vehicle (HOV) and High Occupancy Toll (HOT) Lane Exemption on Delicious Rank Alternative Fuels Data Center: High Occupancy Vehicle (HOV) and High Occupancy Toll (HOT) Lane Exemption on Digg Find More places to share Alternative Fuels Data Center: High

428

High expression Zymomonas promoters  

DOE Patents (OSTI)

Identified are mutants of the promoter of the Z. mobilis glyceraldehyde-3-phosphate dehydrogenase gene, which direct improved expression levels of operably linked heterologous nucleic acids. These are high expression promoters useful for expression of chimeric genes in Zymomonas, Zymobacter, and other related bacteria.

Viitanen, Paul V. (West Chester, PA); Tao, Luan (Havertown, PA); Zhang, Yuying (New Hope, PA); Caimi, Perry G. (Kennett Square, PA); McCole, Laura (East Fallowfield, PA): Zhang, Min (Lakewood, CO); Chou, Yat-Chen (Lakewood, CO); McCutchen, Carol M. (Wilmington, DE); Franden, Mary Ann (Centennial, CO)

2011-08-02T23:59:59.000Z

429

High availability using virtualization  

E-Print Network (OSTI)

High availability has always been one of the main problems for a data center. Till now high availability was achieved by host per host redundancy, a highly expensive method in terms of hardware and human costs. A new approach to the problem can be offered by virtualization. Using virtualization, it is possible to achieve a redundancy system for all the services running on a data center. This new approach to high availability allows to share the running virtual machines over the servers up and running, by exploiting the features of the virtualization layer: start, stop and move virtual machines between physical hosts. The system (3RC) is based on a finite state machine with hysteresis, providing the possibility to restart each virtual machine over any physical host, or reinstall it from scratch. A complete infrastructure has been developed to install operating system and middleware in a few minutes. To virtualize the main servers of a data center, a new procedure has been developed to migrate physical to virtu...

Calzolari, Federico

2009-01-01T23:59:59.000Z

430

High speed flywheel  

DOE Patents (OSTI)

This invention relates generally to flywheels and relates more particularly to the construction of a high speed, low-mass flywheel. Flywheels with which this invention is to be compared include those constructed of circumferentially wound filaments or fibers held together by a matrix or bonding material. Flywheels of such construction are known to possess a relatively high hoop strength but a relatively low radial strength. Hoop-wound flywheels are, therefore, particularly susceptible to circumferential cracks, and the radial stress limitations of such a flywheel substantially limit its speed capabilities. It is an object of the present invention to provide a new and improved flywheel which experiences reduced radial stress at high operating speeds. Another object of the present invention is to provide flywheel whose construction allows for radial growth as flywheel speed increases while providing the necessary stiffness for transferring and maintaining kinetic energy within the flywheel. Still another object of the present invention is to provide a flywheel having concentrically-disposed component parts wherein rotation induced radial stresses at the interfaces of such component parts approach zero. Yet another object of the present invention is to provide a flywheel which is particularly well-suited for high speed applications. 5 figs.

McGrath, S.V.

1990-01-01T23:59:59.000Z

431

Highly oxidized superconductors  

DOE Patents (OSTI)

Novel superconducting materials in the form of compounds, structures or phases are formed by performing otherwise known synthesis in a highly oxidizing atmosphere rather than that created by molecular oxygen at atmospheric pressure or below. This leads to the successful synthesis of novel superconducting compounds which are thermodynamically stable at the conditions under which they are formed. 16 figs.

Morris, D.E.

1994-09-20T23:59:59.000Z

432

Highly oxidized superconductors  

DOE Patents (OSTI)

Novel superconducting materials in the form of compounds, structures or phases are formed by performing otherwise known syntheses in a highly oxidizing atmosphere rather than that created by molecular oxygen at atmospheric pressure or below. This leads to the successful synthesis of novel superconducting compounds which are thermodynamically stable at the conditions under which they are formed.

Morris, Donald E. (Kensington, CA)

1994-01-01T23:59:59.000Z

433

High Energy Photoproduction  

E-Print Network (OSTI)

The experimental and phenomenological status of high energy photoproduction is reviewed. Topics covered include the structure of the photon, production of jets, heavy flavours and prompt photons, rapidity gaps, energy flow and underlying events. The results are placed in the context of the current understanding of QCD, with particular application to present and future hadron and lepton colliders.

J. M. Butterworth; M. Wing

2005-09-15T23:59:59.000Z

434

High Efficiency Steam Electrolyzer  

SciTech Connect

A novel steam electrolyzer has been developed. In conventional electrolyzers, oxygen produced from electrolysis is usually released in the air stream. In their novel design, natural gas is used to replace air in order to reduce the chemical potential difference across the electrolyzer, thus minimizing the electrical consumption. The oxygen from the electrolysis is consumed in either a total oxidation or a partial oxidation reaction with natural gas. Experiments performed on single cells shown a voltage reduction as much as 1 V when compared to conventional electrolyzers. Using thin film materials and high performance cathode and anode, electrolysis could be done at temperatures as low as 700 C with electrolytic current as high as 1 A/cm{sup 2} at a voltage of 0.5 V only. The 700 C operating temperature is favorable to the total oxidation of natural gas while minimizing the need for steam that is otherwise necessary to avoid carbon deposition. A novel tubular electrolyzer stack has been developed. The system was designed to produce hydrogen at high pressures, taking advantage of the simplicity and high efficiency of the electrochemical compressors. A complete fabrication process was developed for making electrolyzer tubes with thin film coatings. A 100 W stack is being built.

Pham, A.Q.

2000-06-19T23:59:59.000Z

435

High Selectivity Oxygen Delignification  

DOE Green Energy (OSTI)

The overall objective of this program was to develop improved extended oxygen delignification (EOD) technologies for current U.S. pulp mill operations. This was accomplished by: (1) Identifying pulping conditions that optimize O and OO performance; (2) Identifying structural features of lignin that enhance reactivity towards EOD of high kappa pulps; (3) Identifying factors minimizing carbohydrate degradation and improve pulp strength of EOD high kappa pulps; (4) Developing a simple, reproducible method of quantifying yield gains from EOD; and (5) Developing process conditions that significantly reduce the capital requirements of EOD while optimizing the yield benefits. Key research outcomes included, demonstrating the use of a mini-O sequence such as (E+O)Dkf:0.05(E+O) or Dkf:0.05(E+O)(E+O) without interstage washing could capture approximately 60% of the delignification efficiency of a conventional O-stage without the major capital requirements associated with an O-stage for conventional SW kraft pulps. The rate of formation and loss of fiber charge during an O-stage stage can be employed to maximize net fiber charge. Optimal fiber charge development and delignification are two independent parameters and do not parallel each other. It is possible to utilize an O-stage to enhance overall cellulosic fiber charge of low and high kappa SW kraft pulps which is beneficial for physical strength properties. The application of NIR and multi-variant analysis was developed into a rapid and simple method of determining the yield of pulp from an oxygen delignification stage that has real-world mill applications. A focus point of this program was the demonstration that Kraft pulping conditions and oxygen delignification of high and low-kappa SW and HW pulps are intimately related. Improved physical pulp properties and yield can be delivered by controlling the H-factor and active alkali charge. Low AA softwood kraft pulp with a kappa number 30 has an average improvement of 2% in yield and 4 cP in viscosity in comparison to high AA pulp for the oxygen delignification. This difference is also seen for high-kappa SW kraft pulps with an average improvement of {approx}3% in yield and 3 cP in viscosity for low AA high kappa number 50 pulp. Low AA hardwood kappa number 20 pulp had an average improvement of {approx}4% in yield and 6-12 cP in viscosity as compared to high AA pulp. Lower kraft cooking temperature (160 vs. 170 C) in combination with the medium AA provides a practical approach for integrating high kappa pulping of hardwoods (i.e., low rejects) with an advanced extended oxygen delignification stage. ECF pulp bleaching of low and high kappa kraft SW and HW pulps exhibit comparable optical and physical strength properties when bleached D(EPO)D.

Arthur J. Ragauskas

2005-09-30T23:59:59.000Z

436

High Tc Superconductivity  

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

by C. Kim (SSRL), D. H. Lu (Stanford), K. M. Shen (Stanford) and Z.-X. Shen (Stanford/SSRL) by C. Kim (SSRL), D. H. Lu (Stanford), K. M. Shen (Stanford) and Z.-X. Shen (Stanford/SSRL) Extensive research efforts to study the novel electronic properties of high-Tc superconductors and their related materials by angle-resolved photoemission spectroscopy at a recently commissioned Beam Line 5-4 (led by Z.-X. Shen) continue to be successful, producing many important results. These results, which are highlighted by five articles recently published in Physical Review Letters and one in Science, brought our understanding steps closer to solving the mystery of the high-Tc superconductivity. With the development of the latest generation of ultra-high resolution electron spectrometers in the past few years, the technique of angle resolved photoemission spectroscopy (ARPES) has recently experienced a renaissance. Nowhere is this revolution more evident than in the study of the high-temperature superconductors, which more than a decade after their discovery, continue to defy theoretical explanation. Recent ARPES experiments performed at Beam Line 5-4 have led to critical new discoveries about the fundamental nature of these mysterious superconductors and are now changing the way that the physics community views these materials. An excellent benchmark for the huge leap in detector resolution and technology is the recent work on Sr2RuO4. Although it belongs to a slightly different family than the high- temperature superconductors, its exotic superconducting mechanism (Tc = 1K) and complex electronic structure make it itself a fascinating material. In the past, due to poor resolutions, ARPES studies on this material were in disagreement with theory and other experimental techniques.

437

Unresolved H-Alpha Enhancements at High Galactic Latitude in the WHAM Sky Survey Maps  

E-Print Network (OSTI)

We have identified 85 regions of enhanced H-Alpha emission at |b| > 10 degrees subtending approximately 1 degree or less on the Wisconsin H-Alpha Mapper (WHAM) sky survey. These high latitude ``WHAM point sources'' have H-Alpha fluxes of 10^{-11} to 10^{-9} erg cm^-2 s^-1, radial velocities within about 70 km/s of the LSR, and line widths that range from less than 20 km/s to about 80 km/s (FWHM). Twenty nine of these enhancements are not identified with either cataloged nebulae or hot stars and appear to have kinematic properties that differ from those observed for planetary nebulae. Another 14 enhancements are near hot evolved low mass stars that had no previously reported detections of associated nebulosity. The remainder of the enhancements are cataloged planetary nebulae and small, high latitude H II regions surrounding massive O and early B stars.

R. J. Reynolds; V. Chaudhary; G. J. Madsen; L. M. Haffner

2004-11-04T23:59:59.000Z

438

Unresolved H-Alpha Enhancements at High Galactic Latitude in the WHAM Sky Survey Maps  

E-Print Network (OSTI)

We have identified 85 regions of enhanced H-Alpha emission at |b| > 10 degrees subtending approximately 1 degree or less on the Wisconsin H-Alpha Mapper (WHAM) sky survey. These high latitude ``WHAM point sources'' have H-Alpha fluxes of 10^{-11} to 10^{-9} erg cm^-2 s^-1, radial velocities within about 70 km/s of the LSR, and line widths that range from less than 20 km/s to about 80 km/s (FWHM). Twenty nine of these enhancements are not identified with either cataloged nebulae or hot stars and appear to have kinematic properties that differ from those observed for planetary nebulae. Another 14 enhancements are near hot evolved low mass stars that had no previously reported detections of associated nebulosity. The remainder of the enhancements are cataloged planetary nebulae and small, high latitude H II regions surrounding massive O and early B stars.

Reynolds, R J; Madsen, G J; Haffner, L M

2004-01-01T23:59:59.000Z

439

HIGH LATITUDE ULYSSES OBSERVATIONS OF THE H/HE INTENSITY RATIO UNDER SOLAR MINIMUM AND SOLAR MAXIMUM CONDITIONS  

DOE Green Energy (OSTI)

We analyze measurements of the 0.5-1.0 MeV/nucleon H/He intensity ratio from the Ulysses spacecraft during its first (1992-94) and second (1999-2000) ascent to southern high latitude regions of the heliosphere. These cover a broad range of heliocentric distances (from 5.2 to 2.0 AU) and out-of-ecliptic latitudes (from 18{degree}S to 80{degree}S). During Ulysses' first southern pass, the HI-SCALE instrument measured a series of enhanced particle fluxes associated with the passage of a recurrent corotating interaction region (CIR). Low values ({approximately}6) of the H/He ratio were observed in these recurrent corotating events, with a clear minimum following the passage of the corotating reverse shock. When Ulysses reached high southern latitudes (>40{degree}S), the H/He ratio always remained below {approximately}10 except during two transient solar events that brought the ratio to high (>20) values. Ulysses' second southern pass was characterized by a higher average value of the H/He ratio. No recurrent pattern was observed in the energetic ion intensity which was dominated by the occurrence of transient events of solar origin. Numerous CIRs, many of which were bounded by forward and reverse shock pairs, were still observed in the solar wind and magnetic field data. The arrival of those CIRs at Ulysses did not always result in a decrease of the H/He ratio; on the contrary, many CIRs showed a higher H/He ratio than some transient events. Within a CIR, however, the H/He ratio usually increased around the forward shock and decreased towards the reverse shock. Throughout the second ascent to southern heliolatitudes, the H/He ratio seldom decreased below {approximately}10 even at high latitudes (>40{degree}S). We interpret these higher values of the H/He ratio in terms of the increasing level of solar activity together with the poor definition and short life that corotating solar wind structures have under solar maximum conditions. The global filling of the heliosphere by transient solar events and the fact that in 1999-2000 Ulysses observed only intermediate (<650 km s{sup {minus}1}) solar wind speed (whose contents in pick-up He is less energetic than in the fast solar wind streams observed in 1992-1994) favored the protons with respect to alpha particles. Hence the fact that the average values of the H/He ratio observed by Ulysses during the rising phase of the solar cycle (1999-2000) were higher than those observed during the declining phase (1992-1994).

J. GOSLING; D. LARIO; ET AL

2001-03-01T23:59:59.000Z

440

Micro-polarimeter for high performance liquid chromatography  

DOE Patents (OSTI)

A micro-polarimeter interfaced with a system for high performance liquid chromatography, for quantitatively analyzing micro and trace amounts of optically active organic molecules, particularly carbohydrates. A flow cell with a narrow bore is connected to a high performance liquid chromatography system. Thin, low birefringence cell windows cover opposite ends of the bore. A focused and polarized laser beam is directed along the longitudinal axis of the bore as an eluent containing the organic molecules is pumped through the cell. The beam is modulated by air gap Faraday rotators for phase sensitive detection to enhance the signal to noise ratio. An analyzer records the beams's direction of polarization after it passes through the cell. Calibration of the liquid chromatography system allows determination of the quantity of organic molecules present from a determination of the degree to which the polarized beam is rotated when it passes through the eluent.

Yeung, Edward E. (Ames, IA); Steenhoek, Larry E. (Wilmington, DE); Woodruff, Steven D. (Morgantown, WV); Kuo, Jeng-Chung (Skokie, IL)

1985-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "degrees fahrenheit high" 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

NEWTON, Ask a Scientist at Argonne National Labs  

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

Evaporation Experiment Gain? Evaporation Experiment Gain? Name: Xandria Status: student Grade: K-3 Country: USA Date: Spring 2012 Question: I am asking on behalf of my 2nd grader. She is doing a Science Experiment on the rate of evaporation of different liquids (water, salt water, alcohol, vinegar, and bleach). Can you have more liquid than what you originally started with? She discovered that droplets of liquid were "stuck" on the side of the flasks and when she measured the liquid, they were more than 50 ml. Process: She put 50 ml of liquid into flasks. Water was placed in both a flask and beaker...just as a side experiment about the container shape. She placed the liquids in a room with an ambient temperature that fluctuated between 68-75 degrees Fahrenheit. Unfortunately, we did not measure the humidity (in reading the archives, it has a huge effect on evaporation). She turned on a work lamp for one hour a day for 10 days. The temperature in the room would get up to 98 degrees Fahrenheit.

442

Table Definitions, Sources, and Explanatory Notes  

Gasoline and Diesel Fuel Update (EIA)

Heat Content of Natural Gas Consumed Heat Content of Natural Gas Consumed Definitions Key Terms Definition British Thermal Unit (Btu) The quantity of heat required to raise the temperature of 1 pound of liquid water by 1 degree Fahrenheit at the temperature at which water has its greatest density (approximately 39 degrees Fahrenheit). Delivered to Consumers (Heat Content) Heat content of residential, commercial, industrial, vehicle fuel and electric power deliveries to consumers. Electric Power (Heat Content) Heat content of natural gas used as fuel in the electric power sector. Heat Content The amount of heat energy available to be released by the transformation or use of a specified physical unit of an energy form (e.g., a ton of coal, a barrel of oil, a kilowatthour of electricity, a cubic foot of natural gas, or a pound of steam). The amount of heat energy is commonly expressed in British thermal units (Btu). Note: Heat content of combustible energy forms can be expressed in terms of either gross heat content (higher or upper heating value) or net heat content (lower heating value), depending upon whether or not the available heat energy includes or excludes the energy used to vaporize water (contained in the original energy form or created during the combustion process). The Energy Information Administration typically uses gross heat content values.

443

Table Definitions, Sources, and Explanatory Notes  

Gasoline and Diesel Fuel Update (EIA)

U.S. Weekly Products Supplied U.S. Weekly Products Supplied Definitions Key Terms Definition Barrel A unit of volume equal to 42 U.S. gallons. Distillate Fuel Oil A general classification for one of the petroleum fractions produced in conventional distillation operations. It includes diesel fuels and fuel oils. Products known as No. 1, No. 2, and No. 4 diesel fuel are used in on-highway diesel engines, such as those in trucks and automobiles, as well as off-highway engines, such as those in railroad locomotives and agricultural machinery. Products known as No. 1, No. 2, and No. 4 fuel oils are used primarily for space heating and electric power generation. Finished Motor Gasoline A complex mixture of relatively volatile hydrocarbons with or without small quantities of additives, blended to form a fuel suitable for use in spark-ignition engines. Motor gasoline, as defined in ASTM Specification D 4814 or Federal Specification VV-G-1690C, is characterized as having a boiling range of 122 to 158 degrees Fahrenheit at the 10 percent recovery point to 365 to 374 degrees Fahrenheit at the 90 percent recovery point. Motor Gasoline includes conventional gasoline; all types of oxygenated gasoline, including gasohol; and reformulated gasoline, but excludes aviation gasoline. Note: Volumetric data on blending components, such as oxygenates, are not counted in data on finished motor gasoline until the blending components are blended into the gasoline.

444

State of California BOARD OF EQUALIZATION USE FUEL TAX REGULATIONS Regulation 1301.  

E-Print Network (OSTI)

Fuel includes any combustible gas or liquid, by whatever name the gas or liquid may be known or sold, of a kind used in an internal combustion engine for the generation of power to propel a motor vehicle on the highways, except fuel that is subject to the tax imposed by the Motor Vehicle Fuel License Tax Law and the Diesel Fuel Tax Law. For example, fuel includes, but is not limited to, liquefied petroleum gases, kerosene, distillate, stove oil, natural gas in liquid or gaseous form, and alcohol fuels. “Alcohol fuel ” includes: ethanol (ethyl alcohol), methanol, (methyl alcohol), or blends of gasoline and alcohol (including any denaturant) containing 15 percent, or less, gasoline by volume measured at 60 degrees Fahrenheit. “Natural gas ” means naturally occurring mixtures of hydrocarbon gases and vapors consisting principally of methane whether in gaseous or liquid form. The taxable unit for compressed natural gas (gaseous form) is 100 cubic feet of gas measured at 14.73 pounds of pressure per square inch at 60 degrees Fahrenheit. The taxable unit for liquid natural gas and other liquid fuels is the United States gallon, which is 231 cubic inches. To convert liters to gallons, the quantity of liters shall be multiplied by.26417 to determine the equivalent quantity in gallons. The resulting figure should be rounded to the nearest tenth of a gallon.

unknown authors

1949-01-01T23:59:59.000Z

445

High Temperature Borehole Televiewer software user manual  

DOE Green Energy (OSTI)

The High Temperature Borehole Televiewer is a downhole instrument which provides acoustic pictures of the borehole walls that are suitable for casing inspection and fracture detection in geothermal wells. The Geothermal Drilling Organization has funded the development of a commercial tool survivable to temperatures of 275{degree}C and pressures of 5000 psi. A real-time display on an IBM-compatible PC was included as part of the development effort. This report contains a User Manual which describes the operation of this software. The software is designed in a menu format allowing the user to change many of the parameters which control both the acquisition and the display of the Televiewer data. An internal data acquisition card digitizes the waveform from the tool at a rate of 100,000 samples per second. The data from the tool, both the range or arrival time and the amplitude of the return signal, are displayed in color on the CRT screen of the computer during the logging operation. This data may be stored on the hard disk for later display and analysis. The software incorporates many features which aid in the setup of the tool for proper operation. These features include displaying and storing the captured waveform data to check the voltage and time windows selected by the user. 17 refs., 28 figs., 15 tabs.

Duda, L.E.

1989-11-01T23:59:59.000Z

446

Strong directional out-of-plane scattering in multiple ionizing highly charged ion-atom collisions  

SciTech Connect

The azimuthal ([phi][sub r]) and polar angle ([theta][sub r]) scattering of projectiles in coincidence with recoil ions has been studied for 0.53 MeV/u F[sup 8+] + Ne. For high degree of ionization of the target we find the resultant transverse momentum of all electrons emitted into the continuum to increase with the number of ejected electrons and to have a direction mostly not co-planar with the scattering plane.

Gonzalez, A.; Hagmann, S.; Quinteros, T. (Kansas State Univ., Manhattan, KS (United States). J.R. MacDonald Lab.); Kraessig, B. (Freiburg Univ. (Germany). Fakultaet fuer Physik); Koch, R.; Schmidt-Boecking, H. (Frankfurt Univ. (Germany). Inst. fuer Kernphysik); Skutlartz, A. (East Carolina Univ., Greenville, NC (United States))

1990-01-01T23:59:59.000Z

447

Strong directional out-of-plane scattering in multiple ionizing highly charged ion-atom collisions  

SciTech Connect

The azimuthal ({phi}{sub r}) and polar angle ({theta}{sub r}) scattering of projectiles in coincidence with recoil ions has been studied for 0.53 MeV/u F{sup 8+} + Ne. For high degree of ionization of the target we find the resultant transverse momentum of all electrons emitted into the continuum to increase with the number of ejected electrons and to have a direction mostly not co-planar with the scattering plane.

Gonzalez, A.; Hagmann, S.; Quinteros, T. [Kansas State Univ., Manhattan, KS (United States). J.R. MacDonald Lab.; Kraessig, B. [Freiburg Univ. (Germany). Fakultaet fuer Physik; Koch, R.; Schmidt-Boecking, H. [Frankfurt Univ. (Germany). Inst. fuer Kernphysik; Skutlartz, A. [East Carolina Univ., Greenville, NC (United States)

1990-12-31T23:59:59.000Z

448

Highly Insulating Windows - Cost  

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

Cost Cost The following is an estimate of the cost effective incremental cost of highly-insulating windows (U-factor=0.20 Btu/hr-ft2-F) compared to regular ENERGY STAR windows (U-factor 0.35 Btu/hr-ft2-F). Energy savings from lower U-factors were simulated with RESFEN over an assumed useful window life of 25 years. To determine the maximum incremental cost at which highly-insulating windows would still be cost-effective, we used a formula used by many utility companies to calculate the cost of saved energy from energy efficiency programs, based on the programs' cost and savings. We turned this formula around so that the cost of saved energy equals the present energy prices in the studied locations, whereas the program cost (the incremental cost of the windows) is the dependent variable. By entering 5%

449

High frequency reference electrode  

DOE Patents (OSTI)

A high frequency reference electrode for electrochemical experiments comprises a mercury-calomel or silver-silver chloride reference electrode with a layer of platinum around it and a layer of a chemically and electrically resistant material such as TEFLON around the platinum covering all but a small ring or halo'' at the tip of the reference electrode, adjacent to the active portion of the reference electrode. The voltage output of the platinum layer, which serves as a redox electrode, and that of the reference electrode are coupled by a capacitor or a set of capacitors and the coupled output transmitted to a standard laboratory potentiostat. The platinum may be applied by thermal decomposition to the surface of the reference electrode. The electrode provides superior high-frequency response over conventional electrodes.

Kronberg, J.W.

1991-03-05T23:59:59.000Z

450

High frequency reference electrode  

DOE Patents (OSTI)

A high frequency reference electrode for electrochemical experiments comprises a mercury-calomel or silver-silver chloride reference electrode with a layer of platinum around it and a layer of a chemically and electrically resistant material such as TEFLON around the platinum covering all but a small ring or halo' at the tip of the reference electrode, adjacent to the active portion of the reference electrode. The voltage output of the platinum layer, which serves as a redox electrode, and that of the reference electrode are coupled by a capacitor or a set of capacitors and the coupled output transmitted to a standard laboratory potentiostat. The platinum may be applied by thermal decomposition to the surface of the reference electrode. The electrode provides superior high-frequency response over conventional electrodes. 4 figs.

Kronberg, J.W.

1994-05-31T23:59:59.000Z

451

Highly Pipelined Asynchronous FPGAs  

E-Print Network (OSTI)

We present the design of a high-performance, highly pipelined asynchronous FPGA. We describe a very ne-grain pipelined logic block and routing interconnect architecture, and show how asynchronous logic can eciently take advantage of this large amount of pipelining. Our FPGA, which does not use a clock to sequence computations, automatically \\selfpipelines " its logic without the designer needing to be explicitly aware of all pipelining details. This property makes our FPGA ideal for throughput-intensive applications and we require minimal place and route support to achieve good performance. Benchmark circuits taken from both the asynchronous and clocked design communities yield throughputs in the neighborhood of 300-400 MHz in a TSMC 0.25m process and 500-700 MHz in a TSMC 0.18m process.

John Teifel; Rajit Manohar

2004-01-01T23:59:59.000Z

452

High frequency reference electrode  

DOE Patents (OSTI)

A high frequency reference electrode for electrochemical experiments comprises a mercury-calomel or silver-silver chloride reference electrode with a layer of platinum around it and a layer of a chemically and electrically resistant material such as TEFLON around the platinum covering all but a small ring or "halo" at the tip of the reference electrode, adjacent to the active portion of the reference electrode. The voltage output of the platinum layer, which serves as a redox electrode, and that of the reference electrode are coupled by a capacitor or a set of capacitors and the coupled output transmitted to a standard laboratory potentiostat. The platinum may be applied by thermal decomposition to the surface of the reference electrode. The electrode provides superior high-frequency response over conventional electrodes.

Kronberg, James W. (Aiken, SC)

1994-01-01T23:59:59.000Z

453

High Temperature ESP Monitoring  

SciTech Connect

The objective of the High Temperature ESP Monitoring project was to develop a downhole monitoring system to be used in wells with bottom hole well temperatures up to 300°C for measuring motor temperature, formation pressure, and formation temperature. These measurements are used to monitor the health of the ESP motor, to track the downhole operating conditions, and to optimize the pump operation. A 220 ºC based High Temperature ESP Monitoring system was commercially released for sale with Schlumberger ESP motors April of 2011 and a 250 ºC system with will be commercially released at the end of Q2 2011. The measurement system is now fully qualified, except for the sensor, at 300 °C.

Jack Booker; Brindesh Dhruva

2011-06-20T23:59:59.000Z

454

Highly Insulating Window Technology  

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

Window Technology Window Technology Temperature differentials across a window, particularly with cold exterior environments in residential buildings, can lead to significant energy losses. Currently available low-emissivity coatings, gas-fills, and insulating frames provide significant energy savings over typical single or double glazed products. The EWC website provides information on how double glazed low-e gas-filled windows work as well as information on commercially available superwindows (three layer, multiple low-e coatings, high performance gas-fills). The next generation of highly insulating window systems will benefit from incremental improvements being made to current components (i.e. more insulating spacers and frame materials/designs, low-e coatings with improved performance properties). LBNL uses its experimental facilities and software tools to collaborate with window and glass industry representatives to better understand the impacts of new components on overall product performance.

455

High voltage pulse conditioning  

DOE Patents (OSTI)

Apparatus for conditioning high voltage pulses from particle accelerators in order to shorten the rise times of the pulses. Flashover switches in the cathode stalk of the transmission line hold off conduction for a determinable period of time, reflecting the early portion of the pulses. Diodes upstream of the switches divert energy into the magnetic and electrostatic storage of the capacitance and inductance inherent to the transmission line until the switches close.

Stringfield, R.M.; Wheat, R.M. Jr.

1989-02-21T23:59:59.000Z

456

High voltage pulse conditioning  

DOE Patents (OSTI)

Apparatus for conditioning high voltage pulses from particle accelerators in order to shorten the rise times of the pulses. Flashover switches in the cathode stalk of the transmission line hold off conduction for a determinable period of time, reflecting the early portion of the pulses. Diodes upstream of the switches divert energy into the magnetic and electrostatic storage of the capacitance and inductance inherent to the transmission line until the switches close.

Springfield, Ray M. (Sante Fe, NM); Wheat, Jr., Robert M. (Los Alamos, NM)

1990-01-01T23:59:59.000Z

457

High speed door assembly  

DOE Patents (OSTI)

This invention is comprised of a high speed door assembly, comprising an actuator cylinder and piston rods, a pressure supply cylinder and fittings, an electrically detonated explosive bolt, a honeycomb structured door, a honeycomb structured decelerator, and a structural steel frame encasing the assembly to close over a 3 foot diameter opening within 50 milliseconds of actuation, to contain hazardous materials and vapors within a test fixture.

Shapiro, C.

1991-12-31T23:59:59.000Z

458

High current ion source  

DOE Patents (OSTI)

An ion source utilizing a cathode and anode for producing an electric arc therebetween. The arc is sufficient to vaporize a portion of the cathode to form a plasma. The plasma leaves the generation region and expands through another regon. The density profile of the plasma may be flattened using a magnetic field formed within a vacuum chamber. Ions are extracted from the plasma to produce a high current broad on beam.

Brown, Ian G. (1088 Woodside Rd., Berkeley, CA 94708); MacGill, Robert A. (645 Kern St., Richmond, CA 94805); Galvin, James E. (2 Commodore Dr. #276, Emeryville, CA 94608)

1990-01-01T23:59:59.000Z

459

HIGH VOLTAGE GENERATOR  

DOE Patents (OSTI)

A generator for producing relatively large currents at high voltages is described. In general, the invention comprises a plurality of capacitors connected in series by a plurality of switches alternately disposed with the capacitors. The above-noted circuit is mounted for movement with respect to contact members and switch closure means so that a load device and power supply are connected across successive numbers of capacitors, while the other capacitors are successively charged with the same power supply.

Schwemin, A.J.

1959-03-17T23:59:59.000Z

460

HIGH VOLTAGE GENERATOR  

DOE Patents (OSTI)

A generator is presented for producing relatively large currents at high voltages. In general, the invention comprises a plurality of capacitors connected in series by a plurality of switches alternately disposed with the capacitors. The circuit is mounted for movement with respect to contact members and switch closure means so that a load device and power supply are connected across successive numbers of capacitors, while the other capacitors are successively charged with the same power supply.

Schwemin, A.J.

1959-03-17T23:59:59.000Z

Note: This page contains sample records for the topic "degrees fahrenheit high" from the National Library of EnergyBeta (NLEBeta).
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to obtain the most current and comprehensive results.


461

High pressure ceramic joint  

DOE Patents (OSTI)

Many recuperators have components which react to corrosive gases and are used in applications where the donor fluid includes highly corrosive gases. These recuperators have suffered reduced life, increased service or maintenance, and resulted in increased cost. The present joint when used with recuperators increases the use of ceramic components which do not react to highly corrosive gases. Thus, the present joint used with the present recuperator increases the life, reduces the service and maintenance, and reduces the increased cost associated with corrosive action of components used to manufacture recuperators. The present joint is comprised of a first ceramic member, a second ceramic member, a mechanical locking device having a groove defined in one of the first ceramic member and the second ceramic member. The joint and the mechanical locking device is further comprised of a refractory material disposed in the groove and contacting the first ceramic member and the second ceramic member. The present joint mechanically provides a high strength load bearing joint having good thermal cycling characteristics, good resistance to a corrosive environment and good steady state strength at elevated temperatures. 4 figures.

Ward, M.E.; Harkins, B.D.

1993-11-30T23:59:59.000Z

462

High pressure ceramic joint  

DOE Patents (OSTI)

Many recuperators have components which react to corrosive gases and are used in applications where the donor fluid includes highly corrosive gases. These recuperators have suffered reduced life, increased service or maintenance, and resulted in increased cost. The present joint when used with recuperators increases the use of ceramic components which do not react to highly corrosive gases. Thus, the present joint used with the present recuperator increases the life, reduces the service and maintenance, and reduces the increased cost associated with corrosive action of components used to manufacture recuperators. The present joint is comprised of a first ceramic member, a second ceramic member, a mechanical locking device having a groove defined in one of the first ceramic member and the second ceramic member. The joint and the mechanical locking device is further comprised of a refractory material disposed in the groove and contacting the first ceramic member and the second ceramic member. The present joint mechanically provides a high strength load bearing joint having good thermal cycling characteristics, good resistance to a corrosive environment and good steady state strength at elevated temperatures.

Ward, Michael E. (Poway, CA); Harkins, Bruce D. (San Diego, CA)

1993-01-01T23:59:59.000Z

463

HIGH VOLTAGE ION SOURCE  

DOE Patents (OSTI)

A device is described for providing a source of molecular ions having a large output current and with an accelerated energy of the order of 600 kv. Ions are produced in an ion source which is provided with a water-cooled source grid of metal to effect maximum recombination of atomic ions to molecular ions. A very high accelerating voltage is applied to withdraw and accelerate the molecular ions from the source, and means are provided for dumping the excess electrons at the lowest possible potentials. An accelerating grid is placed adjacent to the source grid and a slotted, grounded accelerating electrode is placed adjacent to the accelerating grid. A potential of about 35 kv is maintained between the source grid and accelerating grid, and a potential of about 600 kv is maintained between the accelerating grid and accelerating electrode. In order to keep at a minimum the large number of oscillating electrons which are created when such high voltages are employed in the vicinity of a strong magnetic field, a plurality of high voltage cascaded shields are employed with a conventional electron dumping system being employed between each shield so as to dump the electrons at the lowest possible potential rather than at 600 kv.

Luce, J.S.

1960-04-19T23:59:59.000Z

464

High temperature interfacial superconductivity  

DOE Patents (OSTI)

High-temperature superconductivity confined to nanometer-scale interfaces has been a long standing goal because of potential applications in electronic devices. The spontaneous formation of a superconducting interface in bilayers consisting of an insulator (La.sub.2CuO.sub.4) and a metal (La.sub.1-xSr.sub.xCuO.sub.4), neither of which is superconducting per se, is described. Depending upon the layering sequence of the bilayers, T.sub.c may be either .about.15 K or .about.30 K. This highly robust phenomenon is confined to within 2-3 nm around the interface. After exposing the bilayer to ozone, T.sub.c exceeds 50 K and this enhanced superconductivity is also shown to originate from a 1 to 2 unit cell thick interfacial layer. The results demonstrate that engineering artificial heterostructures provides a novel, unconventional way to fabricate stable, quasi two-dimensional high T.sub.c phases and to significantly enhance superconducting properties in other superconductors. The superconducting interface may be implemented, for example, in SIS tunnel junctions or a SuFET.

Bozovic, Ivan (Mount Sinai, NY); Logvenov, Gennady (Port Jefferson Station, NY); Gozar, Adrian Mihai (Port Jefferson, NY)

2012-06-19T23:59:59.000Z

465

High-density Fuel Development for High Performance Research ...  

Science Conference Proceedings (OSTI)

Abstract Scope, High density UMo (7-12wt% Mo) fuel for high performance research ... High Energy X-ray Diffraction Study of Deformation Behavior of Alloy HT9.

466

California high speed rail proposal: “High speed rail and wildlife”  

E-Print Network (OSTI)

Wildlife and High Speed Rail C ALIFORNIA H IGH S PEED R AILLeavitt, California High Speed Rail Authority) Abstract TheCalifornia High Speed Rail (HSR) Proposal is in the initial

Wilkerson, Cynthia

2005-01-01T23:59:59.000Z

467

Effect of Sodium Carboxymethyl Celluloses on Water-catalyzed Self-degradation of 200-degree C-heated Alkali-Activated Cement  

SciTech Connect

We investigated the usefulness of sodium carboxymethyl celluloses (CMC) in promoting self-degradation of 200°C-heated sodium silicate-activated slag/Class C fly ash cementitious material after contact with water. CMC emitted two major volatile compounds, CO2 and acetic acid, creating a porous structure in cement. CMC also reacted with NaOH from sodium silicate to form three water-insensitive solid reaction products, disodium glycolate salt, sodium glucosidic salt, and sodium bicarbonate. Other water-sensitive solid reaction products, such as sodium polysilicate and sodium carbonate, were derived from hydrolysates of sodium silicate. Dissolution of these products upon contact with water generated heat that promoted cement’s self-degradation. Thus, CMC of high molecular weight rendered two important features to the water-catalyzed self-degradation of heated cement: One was the high heat energy generated in exothermic reactions in cement; the other was the introduction of extensive porosity into cement.

Sugama T.; Pyatina, T.

2012-05-01T23:59:59.000Z

468

Radiation Effects on a High Strength, High Conductivity Copper Alloy  

Science Conference Proceedings (OSTI)

Presentation Title, Radiation Effects on a High Strength, High Conductivity Copper ... of Zircaloy during Low Dose Neutron Irradiation at Nominally 375-440° C.

469

Acronyms, Abbreviations and Definitions; DOE Hydrogen Program FY 2009 Annual Progress Report  

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

23 23 FY 2009 Annual Progress Report DOE Hydrogen Program °C Degrees Celsius °F Degrees Fahrenheit D Change, delta ~ Approximately ≈ Equals approximately > Greater than ≥ Greater than or equal to " Inch(s) ≤ Less than or equal to < Less than # Number % Percent ® Registered trademark $ U.S. Dollars 1-D, 1D One-dimensional 2-D, 2D Two-dimensional 2-FPTf 2, fluoropyridinium triflate 3-D, 3D Three-dimensional 1Q First quarter of the fiscal year 2Q Second quarter of the fiscal year 3Q Third quarter of the fiscal year 4Q Fourth quarter of the fiscal year 6F Hexafluorinated (biphenol A) sulfonated poly(arylene ether sulfone) 6FCN-x HexaFluoro bisphenol A based disulfonated polybenzonitirle (H+ form) (x denotes degree of sulfonation) 6FK Partially fluorinated

470

HIGH EFFICIENCY SYNGAS GENERATION  

DOE Green Energy (OSTI)

This project investigated an efficient and low cost method of auto-thermally reforming natural gas to hydrogen and carbon monoxide. Reforming is the highest cost step in producing products such as methanol and Fisher Tropsch liquids (i.e., gas to liquids); and reducing the cost of reforming is the key to reducing the cost of these products. Steam reforming is expensive because of the high cost of the high nickel alloy reforming tubes (i.e., indirectly fired reforming tubes). Conventional auto-thermal or Partial Oxidation (POX) reforming minimizes the size and cost of the reformers and provides a near optimum mixture of CO and hydrogen. However POX requires pure oxygen, which consumes power and significantly increases the cost to reforming. Our high efficiency process extracts oxygen from low-pressure air with novel oxygen sorbent and transfers the oxygen to a nickel-catalyzed reformer. The syngas is generated at process pressure (typically 20 to 40 bar) without nitrogen dilution and has a 1CO to 2H{sub 2} ratio that is near optimum for the subsequent production of Fisher-Tropsch liquid to liquids and other chemicals (i.e., Gas to Liquids, GTL). Our high process efficiency comes from the way we transfer the oxygen into the reformer. All of the components of the process, except for the oxygen sorbent, are commonly used in commercial practice. A process based on a longlived, regenerable, oxygen transfer sorbent could substantially reduce the cost of natural gas reforming to syngas. Lower cost syngas (CO + 2H{sub 2}) that is the feedstock for GTL would reduce the cost of GTL and for other commercial applications (e.g., methanol, other organic chemicals). The vast gas resources of Alaska's North Slope (ANS) offer more than 22 Tcf of gas and GTL production in this application alone, and could account for as much as 300,000 to 700,000 bpd for 20 to 30+ years. We developed a new sorbent, which is an essential part of the High Efficiency Oxygen Process (HOP). We tested the sorbent and observed that it has both a good oxygen capacity and operates as a highly effective reforming catalyst. We conducted a long duration tests of the sorbent (1,500 hours of continuous operation in the HOP cycle). Although the sorbent lost some oxygen capacity with cycling, the sorbent oxygen capacity stabilized after 1,000 hours and remained constant to the end of the test, 1,500 hour. The activity of the catalyst to reform methane to a hydrogen and carbon monoxide mixture was unchanged through the oxidation/reduction cycling. Our cost and performance analyses indicated a significant reduction in the cost of GTL production when using the HOP process integrated into a GTL plant.

Robert J. Copeland; Yevgenia Gershanovich; Brian Windecker

2005-02-01T23:59:59.000Z

471

High performance steam development  

SciTech Connect

DOE has launched a program to make a step change in power plant to 1500 F steam, since the highest possible performance gains can be achieved in a 1500 F steam system when using a topping turbine in a back pressure steam turbine for cogeneration. A 500-hour proof-of-concept steam generator test module was designed, fabricated, and successfully tested. It has four once-through steam generator circuits. The complete HPSS (high performance steam system) was tested above 1500 F and 1500 psig for over 102 hours at full power.

Duffy, T.; Schneider, P.

1995-12-31T23:59:59.000Z

472

High speed flywheel  

DOE Patents (OSTI)

A flywheel for operation at high speeds utilizes two or more ringlike coments arranged in a spaced concentric relationship for rotation about an axis and an expansion device interposed between the components for accommodating radial growth of the components resulting from flywheel operation. The expansion device engages both of the ringlike components, and the structure of the expansion device ensures that it maintains its engagement with the components. In addition to its expansion-accommodating capacity, the expansion device also maintains flywheel stiffness during flywheel operation.

McGrath, Stephen V. (Knoxville, TN)

1991-01-01T23:59:59.000Z

473

High efficiency photoionization detector  

DOE Patents (OSTI)

A high efficiency photoionization detector is described using tetraaminoethylenes in a gaseous state having a low ionization potential and a relative photoionization cross section which closely matches the emission spectrum of xenon gas. Imaging proportional counters are also disclosed using the novel photoionization detector of the invention. The compound of greatest interest is TMAE which comprises tetrakis(dimethylamino)ethylene which has a measured ionization potential of 5.36 [+-] 0.02 eV, and a vapor pressure of 0.35 torr at 20 C. 6 figs.

Anderson, D.F.

1984-01-31T23:59:59.000Z

474

High flux reactor  

DOE Patents (OSTI)

A high flux reactor is comprised of a core which is divided into two symetric segments housed in a pressure vessel. The core segments include at least one radial fuel plate. The spacing between the plates functions as a coolant flow channel. The core segments are spaced axially apart such that a coolant mixing plenum is formed between them. A channel is provided such that a portion of the coolant bypasses the first core section and goes directly into the mixing plenum. The outlet coolant from the first core segment is mixed with the bypass coolant resulting in a lower inlet temperature to the lower core segment.

Lake, James A. (Idaho Falls, ID); Heath, Russell L. (Idaho Falls, ID); Liebenthal, John L. (Idaho Falls, ID); DeBoisblanc, Deslonde R. (Summit, NJ); Leyse, Carl F. (Idaho Falls, ID); Parsons, Kent (Idaho Falls, ID); Ryskamp, John M. (Idaho Falls, ID); Wadkins, Robert P. (Idaho Falls, ID); Harker, Yale D. (Idaho Falls, ID); Fillmore, Gary N. (Idaho Falls, ID); Oh, Chang H. (Idaho Falls, ID)

1988-01-01T23:59:59.000Z

475

High Performance Computing School COMSC  

E-Print Network (OSTI)

High Performance Computing School COMSC This module aims to provide the students with fundamental knowledge and understanding of techniques associated with High Performance Computing and its practical' skills in analysing and evaluating High Performance Computing and will be structured around

Martin, Ralph R.

476

Detachable high heel shoe construction  

E-Print Network (OSTI)

The goal on this investigation was to develop a detachable high heel shoe construction that could enter the current high heel market. The impact of high heel shoes on women's fashion is enormous but there are associated ...

Morales, Alfredo Louis

2007-01-01T23:59:59.000Z

477

Metallic substrates for high temperature superconductors  

DOE Patents (OSTI)

A biaxially textured face-centered cubic metal article having grain boundaries with misorientation angles greater than about 8.degree. limited to less than about 1%. A laminate article is also disclosed having a metal substrate first rolled to at least about 95% thickness reduction followed by a first annealing at a temperature less than about 375.degree. C. Then a second rolling operation of not greater than about 6% thickness reduction is provided, followed by a second annealing at a temperature greater than about 400.degree. C. A method of forming the metal and laminate articles is also disclosed.

Truchan, Thomas G. (Chicago, IL); Miller, Dean J. (Darien, IL); Goretta, Kenneth C. (Downers Grove, IL); Balachandran, Uthamalingam (Hinsdale, IL); Foley, Robert (Chicago, IL)

2002-01-01T23:59:59.000Z

478

BPA-Solicited Technical Review of "Echo Meadows Project Winter Artificial Recharge: Final Report for 2001 Baseline", Technical Report 2004.  

DOE Green Energy (OSTI)

The purpose of this report was to provide, at BPA's request, a technical review of interim products received for Project 2001-015-00 under contract 6925. BPA sometimes solicits technical reviews for Fish and Wildlife products or issues where outside expertise is required. External review of complex project deliverables assures BPA as a funding agency that the contractor is continuing with scientifically-credible experimental techniques envisioned in the original proposal. If the project's methodology proves feasible, there could be potential applications beyond the project area to similar situations in the Columbia Basin. The Experiment involves artificial flooding during high flow periods and a determination of the portion of the return flows that end up in the Umatilla River during low flow months and within acceptable water quality parameters (e.g., low temperature, few contaminants). Flooding could be a critical water source for aquatic organisms at times of the year when flows in the lower reaches of the Umatilla River are low and water is warmer than would be desired. The experiment was proposed to test whether 'this process, recharges the shallow aquifers of the old flood plain, for natural filtration through the alluvial soils as it returns to the Umatilla River, cleaner and cooler (about 50 degree Fahrenheit) five to six month later (about July and August) substantially cooling the river and [making it] more beneficial to anadromous [fish]'. A substantial amount of preliminary data had been collected and preliminary results were submitted in an interim report 'Echo Meadows Project Winter Artificial Recharge: Final Report for 2001 Baseline (December 2002)'. A substantial amount of addition funding was provided for the last cycle of flooding (Phases II) and final analyses of the full compliment of data collected over the life of the contract (Phase III). Third party scientific review may assist the contractor in producing a higher quality Final Report with completion of the final 2 phases of the project.

Morgan, David

2004-02-01T23:59:59.000Z

479

Highly Insulating Windows - Fram  

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

Frames Frames Research performed at the Norwegian University of Science and Technology and LBNL has identified various highly insulating frame solutions. A report was released in 2007 describing some of these frames. This document reports the findings of a market and research review related to state-of-the-art highly insulating window frames. The market review focuses on window frames that satisfy the Passivhaus requirements (window U-value less or equal to 0.8 W/m2K ), while other examples are also given in order to show the variety of materials and solutions that may be used for constructing window frames with a low thermal transmittance (U-value). The market search shows that several combinations of materials are used in order to obtain window frames with a low U-value. The most common insulating material seems to be Polyurethane (PUR), which is used together with most of the common st