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1

par  

E-Print Network [OSTI]

pour obtenir le grade de Docteur ès sciences de l’Université Paris XI Orsay Potentiel de découverte par le détecteur ATLAS du boson de Higgs produit par fusion de bosons vecteurs et mise au point de la mesure de l’énergie transverse manquante calorimétrique soutenue devant la commission d’examen composée de:

Dimitris Varouchas; M. C. Anastasiou; M. K. Cranmer; Dimitris Varouchas

2010-01-01T23:59:59.000Z

2

Optical Durability of Candidate Solar Reflectors for Concentrating Solar Power  

SciTech Connect (OSTI)

Concentrating solar power (CSP) technologies use large mirrors to collect sunlight to convert thermal energy to electricity. The viability of CSP systems requires the development of advanced reflector materials that are low in cost and maintain high specular reflectance for extended lifetimes under severe outdoor environments. The long-standing goals for a solar reflector are specular reflectance above 90% into a 4 mrad half-cone angle for at least 10 years outdoors with a cost of less than $13.8/m{sup 2} (the 1992 $10.8/m{sup 2} goal corrected for inflation to 2002 dollars) when manufactured in large volumes. Durability testing of a variety of candidate solar reflector materials at outdoor test sites and in laboratory accelerated weathering chambers is the main activity within the Advanced Materials task of the CSP Program at the National Renewable Energy Laboratory (NREL) in Golden, Colorado. Test results to date for several candidate solar reflector materials will be presented. These include the optical durability of thin glass, thick glass, aluminized reflectors, front-surface mirrors, and silvered polymer mirrors. The development, performance, and durability of these materials will be discussed. Based on accelerated exposure testing the glass, silvered polymer, and front-surface mirrors may meet the 10 year lifetime goals, but at this time because of significant process changes none of the commercially available solar reflectors and advanced solar reflectors have demonstrated the 10 year or more aggressive 20 year lifetime goal.

Kennedy, C. E.; Terwilliger, K.

2007-01-01T23:59:59.000Z

3

EA-1911: Energy Conservation Standards for Certain Reflector, Elliptical Reflector, and Bulged Reflector Incandescent Lamps  

Broader source: Energy.gov [DOE]

This EA will evaluate the environmental impacts of a proposal to amend energy conservation standards for Certain Reflector, Elliptical Reflector, and Bulged Reflector Incandescent Lamps.

4

Nuclear reactor reflector  

DOE Patents [OSTI]

A nuclear reactor reflector is disclosed that comprises a stack of reflector blocks with vertical water flow passages to cool the reflector. The interface between blocks is opposite support points for reactor fuel rods. Water flows between the reflector and the reactor barrel from passages in a bottom block. The top block contains a flange to limit this flow and the flange has a slot to receive an alignment pin that is welded to the barrel. The pin is held in the slot by two removable shims. Alignment bars extend the length of the stack in slots machined in each block when the stack is assembled.

Hopkins, Ronald J. (Pensacola, FL); Land, John T. (Pensacola, FL); Misvel, Michael C. (Pensacola, FL)

1994-01-01T23:59:59.000Z

5

Nuclear reactor reflector  

DOE Patents [OSTI]

A nuclear reactor reflector is disclosed that comprises a stack of reflector blocks with vertical water flow passages to cool the reflector. The interface between blocks is opposite support points for reactor fuel rods. Water flows between the reflector and the reactor barrel from passages in a bottom block. The top block contains a flange to limit this flow and the flange has a slot to receive an alignment pin that is welded to the barrel. The pin is held in the slot by two removable shims. Alignment bars extend the length of the stack in slots machined in each block when the stack is assembled. 12 figs.

Hopkins, R.J.; Land, J.T.; Misvel, M.C.

1994-06-07T23:59:59.000Z

6

Advanced Manufacture of Reflectors  

Broader source: Energy.gov [DOE]

The Advance Manufacture of Reflectors fact sheet describes a SunShot Initiative project being conducted research team led by the University of Arizona, which is working to develop a novel method for shaping float glass. The technique developed by this research team can drastically reduce the time required for the shaping step. By enabling mass production of solar concentrating mirrors at high speed, this project should lead to improved performance and as much as a 40% reduction in manufacturing costs for reflectors made in very high volume.

7

Phosphate-bonded calcium aluminate cements  

DOE Patents [OSTI]

A method is described for making a rapid-setting phosphate-bonded cementitious material. A powdered aluminous cement is mixed with an aqueous solution of ammonium phosphate. The mixture is allowed to set to form an amorphous cementitious material which also may be hydrothermally treated at a temperature of from about 120 C to about 300 C to form a crystal-containing phosphate-bonded material. Also described are the cementitious products of this method and the cement composition which includes aluminous cement and ammonium polyphosphate. 10 figures.

Sugama, T.

1993-09-21T23:59:59.000Z

8

Corrosion protection for silver reflectors  

DOE Patents [OSTI]

A method of protecting silver reflectors from damage caused by contact with gaseous substances which are often present in the atmosphere and a silver reflector which is so protected. The inventive method comprises at least partially coating a reflector with a metal oxide such as aluminum oxide to a thickness of 15 .ANG. or less.

Arendt, Paul N. (Los Alamos, NM); Scott, Marion L. (Los Alamos, NM)

1991-12-31T23:59:59.000Z

9

Space Reflector Materials for Prometheus Application  

SciTech Connect (OSTI)

The two materials studied in depth which appear to have the most promise in a Prometheus reflector application are beryllium (Be) and beryllium oxide (BeO). Three additional materials, magnesium oxide (MgO), alumina (Al{sub 2}O{sub 3}), and magnesium aluminate spinel (MgAl{sub 2}O{sub 4}) were also recently identified to be of potential interest, and may have promise in a Prometheus application as well, but are expected to be somewhat higher mass than either a Be or BeO based reflector. Literature review and analysis indicates that material properties for Be are largely known, but there are gaps in the properties of Be0 relative to the operating conditions for a Prometheus application. A detailed preconceptual design information document was issued providing material properties for both materials (Reference (a)). Beryllium oxide specimens were planned to be irradiated in the JOY0 Japanese test reactor to partially fill the material property gaps, but more testing in the High Flux Isotope Reactor (HFIR) test reactor at Oak Ridge National Laboratory (ORNL) was expected to be needed. A key issue identified for BeO was obtaining material for irradiation testing with an average grain size of {approx}5 micrometers, reminiscent of material for which prior irradiation test results were promising. Current commercially available material has an average grain size of {approx}10 micrometers. The literature indicated that improved irradiation performance could be expected (e.g., reduced irradiation-induced swelling) with the finer grain size material. Confirmation of these results would allow the use of historic irradiated materials test results from the literature, reducing the extent of required testing and therefore the cost of using this material. Environmental, safety and health (ES&H) concerns associated with manufacturing are significant but manageable for Be and BeO. Although particulate-generating operations (e.g., machining, grinding, etc.) involving Be-bearing materials require significant controls, handling of clean, finished products requires only modest controls. Neither material was initially considered to be viable as a structural material, however, based on improved understanding of its unirradiated properties, Be should be evaluated due to having potentially acceptable structural properties in the unirradiated condition, i. e., during launch, when loads might be most limiting. All three of the alternative materials are non-hazardous, and thus do not engender the ES&H concerns associated with use of Be or BeO. Aluminum oxide is a widely available ceramic material with well characterized physical properties and well developed processing practices. Although the densest (3.97 g/cm{sup 3} versus Be: 1.85, BeO: 3.01, MgO: 3.58, and MgAl{sub 2}O{sub 4}: 3.60, all theoretical density), and therefore the heaviest, of all the materials considered for this application, its ease of fabrication, mechanical properties, availability and neutronic characteristics warrant its evaluation. Similarly, MgO is widely used in the refractory materials industry and has a large established manufacturing base while being lighter than Al{sub 2}O{sub 3}. Most of the commercially available MgO products incorporate additives or a second phase to avoid the formation of Mg(OH){sub 2} due to spontaneous reaction with ambient humidity. The hygroscopicity of MgO makes it a more difficult material to work with than Al{sub 2}O{sub 3} or MgAl{sub 2}O{sub 4}. Magnesium aluminate spinel, although not as widely available as either Al{sub 2}O{sub 3} or MgO, has the advantage of a density almost as low as MgO without being hygroscopic, and shares comparable neutronic performance characteristics in the reflector application.

J. Nash; V. Munne; LL Stimely

2006-01-31T23:59:59.000Z

10

Advanced Manufacture of Reflectors  

SciTech Connect (OSTI)

The main project objective has been to develop an advanced gravity sag method for molding large glass solar reflectors with either line or point focus, and with long or short focal length. The method involves taking standard sized squares of glass, 1.65 m x 1.65 m, and shaping them by gravity sag into precision steel molds. The method is designed for high volume manufacture when incorporated into a production line with separate pre-heating and cooling. The performance objectives for the self-supporting glass mirrors made by this project include mirror optical accuracy of 2 mrad root mean square (RMS), requiring surface slope errors <1 mrad rms, a target not met by current production of solar reflectors. Our objective also included development of new methods for rapidly shaping glass mirrors and coating them for higher reflectivity and soil resistance. Reflectivity of 95% for a glass mirror with anti-soil coating was targeted, compared to the present ~94% with no anti-soil coating. Our mirror cost objective is ~$20/m2 in 2020, a significant reduction compared to the present ~$35/m2 for solar trough mirrors produced for trough solar plants. During the first year a custom batch furnace was built to develop the method with high power radiative heating to simulate transfer of glass into a hot slumping zone in a production line. To preserve the original high polish of the float glass on both front and back surfaces, as required for a second surface mirror, the mold surface is machined to the required shape as grooves which intersect the glass at cusps, reducing the mold contact area to significantly less than 1%. The mold surface is gold-plated to reflect thermal radiation. Optical metrology of glass replicas made with the system has been carried out with a novel, custom-built test system. This test provides collimated, vertically-oriented parallel beams from a linear array of co-aligned lasers translated in a perpendicular direction across the reflector. Deviations of each reflected beam from the paraboloid focus give a direct measure of surface slope error. Key findings • A gravity sag method for large (2.5 m2) second surface glass solar reflectors has been developed and demonstrated to a uniquely high level of accuracy. Mirror surface slope accuracy of 0.65 mrad in one dimension, 0.85 mrad in 2 dimensions (point focus) has been demonstrated by commercial partner REhnu using this process. This accuracy exceeds by a factor of two current solar reflector accuracy. Our replicas meet the Sunshot accuracy objective of 2 mrad optical, which requires better than 1 mrad rms slope error. • Point-focus as well as line-focus mirrors have been demonstrated at 1.65 m x 1.65 m square – a unique capability. • The new process using simple molds is economical. The molds for the 1.65 m square reflectors are bent and machined steel plates on a counter-weighted flotation support. To minimize thermal coupling by radiative heat transfer, the mold surface is grooved and gilded. The molds are simple to manufacture, and have minimal thermal stresses and distortion in use. Lapping and bending techniques have been developed to obtain better than 1 mrad rms surface mold accuracy. Float glass is sagged into the molds by rapid radiative heating, using a custom high power (350 kW) furnace. The method of manufacture is well suited for small as well as large volume production, and as it requires little capital investment and no high technology, it could be used anywhere in the world to make solar concentrating reflectors. • A novel slope metrology method for full 1.65 aperture has been demonstrated, with 25 mm resolution across the face of the replicas. The method is null and therefore inherently accurate: it can easily be reproduced without high-tech equipment and does not need sophisticated calibration. We find by cross calibration with reference trough reflectors from RioGlass that our null-test laser system yields a measurement accuracy better than 0.4 mrad rms slope error. Our system is inexpensive and could have broad application for test

Angel, Roger [University of Arizona

2014-12-17T23:59:59.000Z

11

Reflectors for SAR performance testing.  

SciTech Connect (OSTI)

Synthetic Aperture Radar (SAR) performance testing and estimation is facilitated by observing the system response to known target scene elements. Trihedral corner reflectors and other canonical targets play an important role because their Radar Cross Section (RCS) can be calculated analytically. However, reflector orientation and the proximity of the ground and mounting structures can significantly impact the accuracy and precision with which measurements can be made. These issues are examined in this report.

Doerry, Armin Walter

2008-01-01T23:59:59.000Z

12

Reflector system for a lighting fixture  

DOE Patents [OSTI]

Disclosed herein is a reflector system for a lighting fixture having a illumination source surrounded by an envelope. The reflector system includes a first reflector surrounding the illumination source. The reflector system also includes a second reflector which is non-contiguous with the first reflector and which surrounds the illumination source. The illumination source creates light rays which are reflected by the first and second reflectors. The first reflector directs light rays toward the center line of the fixture. However, the reflected rays despite being so reflected do not substantially intersect the envelope. The reflected light rays from the second reflector being directed so that they diverge from the center line of the fixture avoiding intersection with the semi-transparent envelope.

Siminovitch, Michael J. (829 Manor Rd., El Sobrante, CA 94803); Page, Erik (Berkeley, CA); Gould, Carl T. (Medford, OR)

2001-01-01T23:59:59.000Z

13

Reflector system for a lighting fixture  

DOE Patents [OSTI]

Disclosed herein is a reflector system for a lighting fixture having a illumination source surrounded by an envelope. The reflector system includes a first reflector surrounding the illumination source. The reflector system also includes a second reflector which is non-contiguous with the first reflector and which surrounds the illumination source. The illumination source creates light rays which are reflected by the first and second reflectors. The first reflector directs light rays toward the center line of the fixture. However, the reflected rays despite being so reflected do not substantially intersect the envelope. The reflected light rays from the second reflector being directed so that they diverge from the center line of the fixture avoiding intersection with the semi-transparent envelope.

Siminovitch, Michael J. (El Sobrante, CA); Page, Erik (Berkeley, CA); Gould, Carl T. (Medford, OR)

1998-01-01T23:59:59.000Z

14

Reflector system for a lighting fixture  

DOE Patents [OSTI]

Disclosed herein is a reflector system for a lighting fixture having a illumination source surrounded by an envelope. The reflector system includes a first reflector surrounding the illumination source. The reflector system also includes a second reflector which is non-contiguous with the first reflector and which surrounds the illumination source. The illumination source creates light rays which are reflected by the first and second reflectors. The first reflector directs light rays toward the center line of the fixture. However, the reflected rays despite being so reflected do not substantially intersect the envelope. The reflected light rays from the second reflector being directed so that they diverge from the center line of the fixture avoiding intersection with the semi-transparent envelope. 5 figs.

Siminovitch, M.J.; Page, E.; Gould, C.T.

1998-09-08T23:59:59.000Z

15

Copper Aluminate as a potential material for high temperature...  

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

Copper Aluminate as a potential material for high temperature thermoelectric power generation Home Author: D. T. Morelli, E. D. Case, B. D. Hall, S. Wang Year: 2008 Abstract: URL:...

16

Lamp bulb with integral reflector  

DOE Patents [OSTI]

An improved electrodeless discharge lamp bulb includes an integral ceramic reflector as a portion of the bulb envelope. The bulb envelope further includes two pieces, a reflector portion or segment is cast quartz ceramic and a light transmissive portion is a clear fused silica. In one embodiment, the cast quartz ceramic segment includes heat sink fins or stubs providing an increased outside surface area to dissipate internal heat. In another embodiment, the quartz ceramic segment includes an outside surface fused to eliminate gas permeation by polishing.

Levin, Izrail (Silver Spring, MD); Shanks, Bruce (Gaithersburg, MD); Sumner, Thomas L. (Wheaton, MD)

2001-01-01T23:59:59.000Z

17

Distributed Bragg Reflectors With Reduced Optical Absorption  

DOE Patents [OSTI]

A new class of distributed Bragg reflectors has been developed. These distributed Bragg reflectors comprise interlayers positioned between sets of high-index and low-index quarter-wave plates. The presence of these interlayers is to reduce photon absorption resulting from spatially indirect photon-assisted electronic transitions between the high-index and low-index quarter wave plates. The distributed Bragg reflectors have applications for use in vertical-cavity surface-emitting lasers for use at 1.55 .mu.m and at other wavelengths of interest.

Klem, John F. (Albuquerque, NM)

2005-08-16T23:59:59.000Z

18

Solar central receiver heliostat reflector assembly  

DOE Patents [OSTI]

A heliostat reflector assembly for a solar central receiver system comprises a light-weight, readily assemblable frame which supports a sheet of stretchable reflective material and includes mechanism for selectively applying tension to and positioning the sheet to stretch it to optical flatness. The frame is mounted on and supported by a pipe pedestal assembly that, in turn, is installed in the ground. The frame is controllably driven in a predetermined way by a light-weight drive system so as to be angularly adjustable in both elevation and azimuth to track the sun and efficiently continuously reflect the sun's rays to a focal zone, i.e. central receiver, which forms part of a solar energy utilization system, such as a solar energy fueled electrical power generation system. The frame may include a built-in system for testing for optical flatness of the reflector. The preferable geometric configuration of the reflector is octagonal; however, it may be other shapes, such as hexagonal, pentagonal or square. Several different embodiments of means for tensioning and positioning the reflector to achieve optical flatness are disclosed. The reflector assembly is based on the stretch frame concept which provides an extremely light-weight, simple, low-cost reflector assembly that may be driven for positioning and tracking by a light-weight, inexpensive drive system.

Horton, Richard H. (Schenectady, NY); Zdeb, John J. (Clifton Park, NY)

1980-01-01T23:59:59.000Z

19

Magnesium aluminate (MgAl2O4) spinel produced via self-heat-sustained (SHS) technique  

E-Print Network [OSTI]

Magnesium aluminate (MgAl2O4) spinel produced via self-heat-sustained (SHS) technique Lim Rooi of the reactants to produce very high phase-purity magnesium aluminate powder under rather mild experi- mental effect of slightly off-stoichiometry ( 9 wt. %) in composi- tions on either side of magnesium aluminate

Azad, Abdul-Majeed

20

Nuclear Transmutations in HFIR's Beryllium Reflector and Their Impact on Reactor Operation and Reflector Disposal  

SciTech Connect (OSTI)

The High Flux Isotope Reactor located at the Oak Ridge National Laboratory utilizes a large cylindrical beryllium reflector that is subdivided into three concentric regions and encompasses the compact reactor core. Nuclear transmutations caused by neutron activation occur in the beryllium reflector regions, which leads to unwanted neutron absorbing and radiation emitting isotopes. During the past year, two topics related to the HFIR beryllium reflector were reviewed. The first topic included studying the neutron poison (helium-3 and lithium-6) buildup in the reflector regions and its affect on beginning-of-cycle reactivity. A new methodology was developed to predict the reactivity impact and estimated symmetrical critical control element positions as a function of outage time between cycles due to helium-3 buildup and was shown to be in better agreement with actual symmetrical critical control element position data than the current methodology. The second topic included studying the composition of the beryllium reflector regions at discharge as well as during decay to assess the viability of transporting, storing, and ultimately disposing the reflector regions currently stored in the spent fuel pool. The post-irradiation curie inventories were used to determine whether the reflector regions are discharged as transuranic waste or become transuranic waste during the decay period for disposal purposes and to determine the nuclear hazard category, which may affect the controls invoked for transportation and temporary storage. Two of the reflector regions were determined to be transuranic waste at discharge and the other region was determined to become transuranic waste in less than 2 years after being discharged due to the initial uranium content (0.0044 weight percent uranium). It was also concluded that all three of the reflector regions could be classified as nuclear hazard category 3 (potential for localized consequences only).

Chandler, David [ORNL; Maldonado, G Ivan [ORNL; Primm, Trent [ORNL; Proctor, Larry Duane [ORNL

2012-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "aluminized reflector par" 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

BERKELEY PAR LABBERKELEY PAR LAB Where we ended up  

E-Print Network [OSTI]

, David Wessel, and Kathy Yelick UC Berkeley Par Lab End-of-Project Party May 30, 2013 #12;BERKELEY PAR

California at Berkeley, University of

22

Dual annular rotating "windowed" nuclear reflector reactor control system  

DOE Patents [OSTI]

A nuclear reactor control system is provided in a nuclear reactor having a core operating in the fast neutron energy spectrum where criticality control is achieved by neutron leakage. The control system includes dual annular, rotatable reflector rings. There are two reflector rings: an inner reflector ring and an outer reflector ring. The reflectors are concentrically assembled, surround the reactor core, and each reflector ring includes a plurality of openings. The openings in each ring are capable of being aligned or non-aligned with each other. Independent driving means for each of the annular reflector rings is provided so that reactor criticality can be initiated and controlled by rotation of either reflector ring such that the extent of alignment of the openings in each ring controls the reflection of neutrons from the core.

Jacox, Michael G. (Idaho Falls, ID); Drexler, Robert L. (Idaho Falls, ID); Hunt, Robert N. M. (Idaho Falls, ID); Lake, James A. (Idaho Falls, ID)

1994-01-01T23:59:59.000Z

23

PARS II Training Workbook (Course 103) | Department of Energy  

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

PARS II Training Workbook (Course 103) PARS II Training Workbook (Course 103) PARS II More Documents & Publications PARS II TRAINING PARS II TRAINING PARS II 104 Contractor Monthly...

24

Method of preparing a sintered lithium aluminate structure for containing electrolyte  

DOE Patents [OSTI]

A porous sintered tile is formed of lithium aluminate for retaining molten lectrolyte within a fuel cell. The tile is prepared by reacting lithium hydroxide in aqueous solution with alumina particles to form beta lithium aluminate particles. The slurry is evaporated to dryness and the solids dehydrated to form a beta lithium aluminate powder. The powder is compacted into the desired shape and sintered at a temperature in excess of 1200 K. but less than 1900 K. to form a porous integral structure that is subsequently filled with molten electrolyte. A tile of this type is intended for use in containing molten alkali metal carbonates as electolyte for use in a fuel cell having porous metal or metal oxide electrodes for burning a fuel gas such as hydrogen and/or carbon monoxide with an oxidant gas containing oxygen.

Sim, James W. (Evergreen Park, IL); Kinoshita, Kimio (Cupertino, CA)

1981-01-01T23:59:59.000Z

25

Optical Reflectance Measurements for Commonly Used Reflectors  

SciTech Connect (OSTI)

When simulating light collection in scintillators, modeling the angular distribution of optical light reflectance from surfaces is very important. Since light reflectance is poorly understood, either purely specular or purely diffuse reflectance is generally assumed. In this paper we measure the optical reflectance distribution for eleven commonly used reflectors. A 440 nm, output power stabilized, un-polarized laser is shone onto a reflector at a fixed angle of incidence. The reflected light's angular distribution is measured by an array of silicon photodiodes. The photodiodes are movable to cover 2 pi of solid angle. The light-induced current is, through a multiplexer, read out with a digital multimeter. A LabVIEW program controls the motion of the laser and the photodiode array, the multiplexer, and the data collection. The laser can be positioned at any angle with a position accuracy of 10 arc minutes. Each photodiode subtends 6.3o, and the photodiode array can be positioned at any angle with up to 10 arc minute angular resolution. The dynamic range for the current measurements is 105:1. The measured light reflectance distribution was measured to be specular for several ESR films as well as for aluminum foil, mostly diffuse for polytetrafluoroethylene (PTFE) tape and titanium dioxide paint, and neither specular nor diffuse for Lumirror(R), Melinex(R) and Tyvek(R). Instead, a more complicated light distribution was measured for these three materials.

Janecek, Petr Martin; Moses, William

2008-06-11T23:59:59.000Z

26

Prsent par Laurence JOUNIAUX  

E-Print Network [OSTI]

.................................. 211 Caractérisation des milieux superficiels par des excitations provoquées : conversions sismo................................................................................................................................................ 307 C-1. PH�NOM�NES TRANSITOIRES SISMO-�LECTROMAGN�TIQUES............... 307 C-2. EFFET DE LA

Paris-Sud XI, Université de

27

Impact of HFIR LEU Conversion on Beryllium Reflector Degradation Factors  

SciTech Connect (OSTI)

An assessment of the impact of low enriched uranium (LEU) conversion on the factors that may cause the degradation of the beryllium reflector is performed for the High Flux Isotope Reactor (HFIR). The computational methods, models, and tools, comparisons with previous work, along with the results obtained are documented and discussed in this report. The report documents the results for the gas and neutronic poison production, and the heating in the beryllium reflector for both the highly enriched uranium (HEU) and LEU HFIR configurations, and discusses the impact that the conversion to LEU may have on these quantities. A time-averaging procedure was developed to calculate the isotopic (gas and poisons) production in reflector. The sensitivity of this approach to different approximations is gauged and documented. The results show that the gas is produced in the beryllium reflector at a total rate of 0.304 g/cycle for the HEU configuration; this rate increases by ~12% for the LEU case. The total tritium production rate in reflector is 0.098 g/cycle for the HEU core and approximately 11% higher for the LEU core. A significant increase (up to ~25%) in the neutronic poisons production in the reflector during the operation cycles is observed for the LEU core, compared to the HEU case, for regions close to the core s horizontal midplane. The poisoning level of the reflector may increase by more than two orders of magnitude during long periods of downtime. The heating rate in the reflector is estimated to be approximately 20% lower for the LEU core than for the HEU core. The decrease is due to a significantly lower contribution of the heating produced by the gamma radiation for the LEU core. Both the isotopic (gas and neutronic poisons) production and the heating rates are spatially non-uniform throughout the beryllium reflector volume. The maximum values typically occur in the removable reflector and close to the midplane.

Ilas, Dan [ORNL

2013-10-01T23:59:59.000Z

28

Method of making reflecting film reflector  

DOE Patents [OSTI]

A reflector of the reflecting film type is disclosed and which may be used in a heliostatic system for concentrating solar energy and comprising a reflecting film bonded to an appropriate rigid substrate in such a way that specularity of a very high order is achieved. A method of bonding the reflecting film to the substrate is also disclosed and comprises the steps of initially adhering the film to a smooth, clean flat rigid surface with a non-bonding liquid between the rigid surface and film, and then bonding the substrate and film. The non-bonding liquid has a molecular adhesion greater than any stresses due to handling or curing of the bonding agent which is applied between the film and the opposing surface of the rigid substrate.

Cottingham, James G. (Center Moriches, NY)

1980-01-01T23:59:59.000Z

29

Lithium aluminate/zirconium material useful in the production of tritium  

DOE Patents [OSTI]

A composition is described useful in the production of tritium in a nuclear eactor. Lithium aluminate particles are dispersed in a matrix of zirconium. Tritium produced by the reactor of neutrons with the lithium are absorbed by the zirconium, thereby decreasing gas pressure within capsules carrying the material.

Cawley, William E. (Richland, WA); Trapp, Turner J. (Richland, WA)

1984-10-09T23:59:59.000Z

30

Lithium aluminate/zirconium material useful in the production of tritium  

DOE Patents [OSTI]

A composition is described useful in the production of tritium in a nuclear reactor. Lithium aluminate particles are dispersed in a matrix of zirconium. Tritium produced by the reactor of neutrons with the lithium are absorbed by the zirconium, thereby decreasing gas pressure within capsules carrying the material.

Cawley, W.E.; Trapp, T.J.

1984-10-09T23:59:59.000Z

31

New Reflector CFLs that Can Take the Heat  

SciTech Connect (OSTI)

Reflector compact fluorescent bulbs (R-CFLs) are a wise choice for the energy savvy because they offer energy savings of up to 66 percent compared to incandescent reflectors. But some R-CFLs have suffered performance problems (including premature failure) when used in high-temperature environments, such as recessed downlight fixtures located in insulated ceilings with airtight housings. To help address this issue, the U.S. Dept. of Energy (DOE) is working with lamp manufacturers to improve the quality and performance of screw-based reflector CFLs in high-heat applications.

Vogt, Susan

2005-03-01T23:59:59.000Z

32

Neutronic evaluation of GCFR core diluents and reflectors  

E-Print Network [OSTI]

Materials are evaluated for use as in-core diluents and as peripheral reflectors for Gas-Cooled Fast Reactor (GFR) service, using coupled Monte Carlo (MCNP) and isotopics (ORIGEN) codes. The principal performance indices ...

Yu, Kun, 1974-

2003-01-01T23:59:59.000Z

33

PARS II TRAINING | Department of Energy  

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

TRAINING PARS II TRAINING BASICS TRAINING WORKBOOK PARS II TRAINING More Documents & Publications PARS II PARS II Training Workbook (Course 103) PARSIIUserGuideV1.0Draft.pdf...

34

Solar cell comprising a plasmonic back reflector and method therefor  

DOE Patents [OSTI]

A method for forming a solar cell having a plasmonic back reflector is disclosed. The method includes the formation of a nanoimprinted surface on which a metal electrode is conformally disposed. The surface structure of the nanoimprinted surface gives rise to a two-dimensional pattern of nanometer-scale features in the metal electrode enabling these features to collectively form the plasmonic back reflector.

Ding, I-Kang; Zhu, Jia; Cui, Yi; McGehee, Michael David

2014-11-25T23:59:59.000Z

35

Application of the OPTEX method for computing reflector parameters  

SciTech Connect (OSTI)

We are investigating the OPTEX reflector model for obtaining few-group reflector parameters consistent with a reference power distribution in the core. In our study, the reference power distribution is obtained using a 142,872-region calculation defined over a 2D eighth-of-core pressurized water reactor and performed with the method of characteristics. The OPTEX method is based on generalized perturbation theory and uses an optimization algorithm known as parametric linear complementarity pivoting. The proposed model leads to few-group diffusion coefficients or P1-weighted macroscopic total cross sections that can be used to represent the reflector in full-core calculations. These few-group parameters can be spatially heterogeneous in order to correctly represent steel baffles present in modern pressurized water reactors. The optimal reflector parameters are compared to those obtained with a flux-volume weighting of the reflector cross sections recovered from the reference calculation. Important improvements in full-core power distribution are observed when the optimal parameters are used. (authors)

Hebert, A. [Ecole Polytechnique de Montreal, C.P. 6079 suce. Centre-Ville, Montreal QC. H3C 3A7 (Canada); Leroyer, H. [EDF - R and D, SINETICS, 1 Avenue du General de Gaulle, 92141 Clamart (France)

2013-07-01T23:59:59.000Z

36

A powerful reflector in relativistic backward wave oscillator  

SciTech Connect (OSTI)

An improved TM{sub 021} resonant reflector is put forward. Similarly with most of the slow wave structures used in relativistic backward wave oscillator, the section plane of the proposed reflector is designed to be trapezoidal. Compared with the rectangular TM{sub 021} resonant reflector, such a structure can depress RF breakdown more effectively by weakening the localized field convergence and realizing good electrostatic insulation. As shown in the high power microwave (HPM) generation experiments, with almost the same output power obtained by the previous structure, the improved structure can increase the pulse width from 25?ns to over 27?ns and no obvious surface damage is observed even if the generated HPM pulses exceed 1000 shots.

Cao, Yibing, E-mail: caoyibing@nint.ac.cn; Sun, Jun; Teng, Yan; Zhang, Yuchuan; Zhang, Lijun; Shi, Yanchao; Ye, Hu; Chen, Changhua [Science and Technology on High Power Microwave Laboratory, Northwest Institute of Nuclear Technology, Xi'an, Shaanxi 710024 (China)

2014-09-15T23:59:59.000Z

37

AlP/GaP distributed Bragg reflectors  

SciTech Connect (OSTI)

Distributed Bragg reflectors with high reflectivity bands centered at wavelengths from 530 to 690 nm (green to red) based on AlP/GaP quarter-wave stacks are prepared on (001)GaP using gas-source molecular-beam epitaxy. Additionally, the complex refractive index of AlP is measured using spectroscopic ellipsometry within the range of 330-850 nm in order to facilitate an accurate reflector design. Structures consisting of 15 quarter-wave stacks reach a peak reflectance between 95% and 98%, depending on the spectral position of the maximum.

Emberger, Valentin; Hatami, Fariba; Ted Masselink, W. [Department of Physics, Humboldt-Universitaet zu Berlin, Newtonstrasse 15, D-12489 Berlin (Germany); Peters, Sven [Sentech Instruments GmbH, Schwarzschildstr. 2, 12489 Berlin (Germany)

2013-07-15T23:59:59.000Z

38

Dual annular rotating [open quotes]windowed[close quotes] nuclear reflector reactor control system  

DOE Patents [OSTI]

A nuclear reactor control system is provided in a nuclear reactor having a core operating in the fast neutron energy spectrum where criticality control is achieved by neutron leakage. The control system includes dual annular, rotatable reflector rings. There are two reflector rings: an inner reflector ring and an outer reflector ring. The reflectors are concentrically assembled, surround the reactor core, and each reflector ring includes a plurality of openings. The openings in each ring are capable of being aligned or non-aligned with each other. Independent driving means for each of the annular reflector rings is provided so that reactor criticality can be initiated and controlled by rotation of either reflector ring such that the extent of alignment of the openings in each ring controls the reflection of neutrons from the core. 4 figures.

Jacox, M.G.; Drexler, R.L.; Hunt, R.N.M.; Lake, J.A.

1994-03-29T23:59:59.000Z

39

Project Profile: Low-Cost Self-Cleaning Reflector Coatings for...  

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

Cost Self-Cleaning Reflector Coatings for CSP Collectors Project Profile: Low-Cost Self-Cleaning Reflector Coatings for CSP Collectors Oak Ridge National Laboratory logo The Oak...

40

PARS II KNOWN ISSUES AND SUGGESTED WORKAROUNDS  

Energy Savers [EERE]

screen, the following workaround is suggested: Close all browser windows (PARS II and web applications). Reopen a browser and proceed with the PARS II log-in. PARS II does...

Note: This page contains sample records for the topic "aluminized reflector par" 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

AIAA 2004-1574 New Deployable Reflector Concept  

E-Print Network [OSTI]

an offset parabolic cylinder with a linear feed array. The required reflector shape is an offset parabolic that comprises curved surfaces formed from thin sheets of carbon-fiber-reinforced-plastic (CFRP) connected-band Synthetic Aperture Radar (SAR) instrument using an offset parabolic cylinder with a linear feed array

Soykasap, Omer

42

Birefringent omnidirectional reflector Kate Kaminska and Kevin Robbie  

E-Print Network [OSTI]

silica Ref. 4 multilayer structures and in the near infrared with amorphous silicon silica Ref. 5 and Ga, and expensive. We demonstrate an omnidirectional reflector operat- ing at near-infrared wavelengths, made reflection of radiation at 1.1 m for all incidence angles and polarizations. The thin-film device

Robbie, Kevin

43

Long-Life Self-Renewing Solar Reflector Stack  

DOE Patents [OSTI]

A long-life solar reflector includes a solar collector substrate and a base layer bonded to a solar collector substrate. The first layer includes a first reflective layer and a first acrylic or transparent polymer layer covering the first reflective layer to prevent exposure of the first reflective layer. The reflector also includes at least one upper layer removably bonded to the first acrylic or transparent polymer layer of the base layer. The upper layer includes a second reflective layer and a second acrylic or transparent polymer layer covering the second reflective layer to prevent exposure of the second reflective layer. The upper layer may be removed from the base reflective layer to expose the base layer, thereby lengthening the useful life of the solar reflector. A method of manufacturing a solar reflector includes the steps of bonding a base layer to a solar collector substrate, wherein the base reflective layer includes a first reflective layer and a first transparent polymer or acrylic layer covering the first reflective layer; and removably bonding a first upper layer to the first transparent polymer or acrylic layer of the base layer. The first upper layer includes a second reflective layer and a second transparent polymer or acrylic layer covering the second reflective layer to prevent exposure of the second reflective layer.

Butler, Barry Lynn (Solana Beach, CA)

1997-07-08T23:59:59.000Z

44

STIFFENED SPRINGBACK REFLECTORS L.T. Tan and S. Pellegrino  

E-Print Network [OSTI]

STIFFENED SPRINGBACK REFLECTORS L.T. Tan and S. Pellegrino Department of Engineering, University plastic (CFRP). The whole structure is made as a single piece, without any expensive and potentially the reliability of the system. This paper proposes a modification of the original concept, based on the idea

Pellegrino, Sergio

45

Step-Stress Accelerated Degradation Testing for Solar Reflectors: Preprint  

SciTech Connect (OSTI)

To meet the challenge to reduce the cost of electricity generated with concentrating solar power (CSP) new low-cost reflector materials are being developed including metalized polymer reflectors and must be tested and validated against appropriate failure mechanisms. We explore the application of testing methods and statistical inference techniques for quantifying estimates and improving lifetimes of concentrating solar power (CSP) reflectors associated with failure mechanisms initiated by exposure to the ultraviolet (UV) part of the solar spectrum. In general, a suite of durability and reliability tests are available for testing a variety of failure mechanisms where the results of a set are required to understand overall lifetime of a CSP reflector. We will focus on the use of the Ultra-Accelerated Weathering System (UAWS) as a testing device for assessing various degradation patterns attributable to accelerated UV exposure. Depending on number of samples, test conditions, degradation and failure patterns, test results may be used to derive insight into failure mechanisms, associated physical parameters, lifetimes and uncertainties. In the most complicated case warranting advanced planning and statistical inference, step-stress accelerated degradation (SSADT) methods may be applied.

Jones, W.; Elmore, R.; Lee, J.; Kennedy, C.

2011-09-01T23:59:59.000Z

46

Methods of use of calcium hexa aluminate refractory linings and/or chemical barriers in high alkali or alkaline environments  

DOE Patents [OSTI]

A method for improving the insulating character/and or penetration resistance of a liner in contact with at least one of an alkali and/or alkaline environments is provided. The method comprises lining a surface that is subject to wear by an alkali environment and/or an alkaline environment with a refractory composition comprising a refractory aggregate consisting essentially of a calcium hexa aluminate clinker having the formula CA.sub.6, wherein C is equal to calcium oxide, wherein A is equal to aluminum oxide, and wherein the hexa aluminate clinker has from zero to less than about fifty weight percent C.sub.12A.sub.7, and wherein greater than 98 weight percent of the calcium hexa aluminate clinker having a particle size ranging from -20 microns to +3 millimeters, for forming a liner of the surface. This method improves the insulating character/and or penetration resistance of the liner.

McGowan, Kenneth A; Cullen, Robert M; Keiser, James R; Hemrick, James G; Meisner, Roberta A

2013-10-22T23:59:59.000Z

47

Broadly tunable chromium-doped beryllium aluminate lasers and operation thereof  

SciTech Connect (OSTI)

A high power, broadly wavelength-tunable laser is provided which comprises as the laser medium particular single crystals of chromium-doped beryllium aluminate (BeAl/sub 2/O/sub 4/:Cr/sup 3 +/) having the chrysoberyl structure, means for exciting the laser medium and tuning means. The laser may be operated over a broad temperature range from cryogenic temperatures to elevated temperatures. Elevated temperatures are preferred, however, since they result in higher laser gain. Emission is in a spectral range from red to infrared, and the laser is useful in the fields of defense, communications, isotope separation, photochemistry, etc.

Jenssen, H.P.; Morris, R.C.; Peterson, O.G.; Walling, J.C.

1981-06-09T23:59:59.000Z

48

Investigation of calcium aluminates by IR spectroscopy in diffusely scattered light  

SciTech Connect (OSTI)

The hydroxyl covering and the adsorption sites for CO and H/sub 2/O on aluminum-calcium catalysts and supports with developed surfaces have been studied by IR spectroscopy in diffusely scattered light. The presence of several types of surface OH groups, viz., terminal groups bonded to calcium ions with different types of coordination, bridging OH groups, and groups appearing in (CaOH)/sup +/ groupings, which perform the role of compensating cations in the zeolite-like structure of calcium aluminates, has been established. The shifts of the bands of the OH groups upon the adsorption of C/sub 6/H/sub 6/ and cyclo-C/sub 6/H/sub 12/ point out their weakly acidic or basic character. When calcium aluminates are dehydroxylated, aprotic sites appear on their surfaces, and the rehydration of such surfaces is accompanied by the formation of OH groups and the weakening of the Al-O-M bonds (M = Al, Ca) with the appearance of additional sites for the strong adsorption of water.

Medin, A.S.; Borovkov, V.Yu.; Nissenbaum, V.D.; Yakerson, V.I.; Kazanskii, V.B.

1989-01-01T23:59:59.000Z

49

Thermochemical properties of gibbsite, bayerite, boehmite, diaspore, and the aluminate ion between 0 and 350/degree/C  

SciTech Connect (OSTI)

A requirement for modelling the chemical behavior of groundwater in a nuclear waste repository is accurate thermodynamic data pertaining to the participating minerals and aqueous species. In particular, it is important that the thermodynamic properties of the aluminate ion be accurately determined, because most rock forming minerals in the earth's crust are aluminosilicates, and most groundwaters are neutral to slightly alkaline, where the aluminate ion is the predominant aluminum species in solution. Without a precise knowledge of the thermodynamic properties of the aluminate ion aluminosilicate mineral solubilities cannot be determined. The thermochemical properties of the aluminate ion have been determined from the solubilities of the aluminum hydroxides and oxyhydroxides in alkaline solutions between 20 and 350/degree/C. An internally consistent set of thermodynamic properties have been determined for gibbsite, boehmite, diaspore and corundum. The thermodynamic properties of bayerite have been provisionally estimated and a preliminary value for ..delta..G/sub f, 298//sup 0/ of nordstrandite has been determined. 205 refs., 17 figs., 25 tabs.

Apps, J.A.; Neil, J.M.; Jun, C.H.

1989-01-01T23:59:59.000Z

50

ESTADO DO PAR PODER JUDICIRIO  

E-Print Network [OSTI]

ordem alfabética. 1.1.1 LOCAL: Tribunal de Justiça do Estado do Pará ­ Av. Almirante Barroso nº 3089

Maier, Rudolf Richard

51

Development of MnCoO Coating with New Aluminizing Process for Planar SOFC Stacks  

SciTech Connect (OSTI)

Low-cost, chromia-forming steels find widespread use in SOFCs at operating temperatures below 800°C, because of their low thermal expansion mismatch and low cost. However, volatile Cr-containing species originating from this scale poison the cathode material in the cells and subsequently cause power degradation in the devices. To prevent this, a conductive manganese cobaltite coating has been developed. However, this coating is not compatible with forming hermetic seals between the interconnect or window frame component and ceramic cell. This coating reacts with sealing materials. Thus, a new aluminizing process has been developed for the sealing regions in these parts, as well as for other metallic stack and balance-of-plant components. From this development, the sealing performance and SOFC stack performance became very stable.

Choi, Jung-Pyung; Weil, K. Scott; Chou, Y. S.; Stevenson, Jeffry W.; Yang, Zhenguo

2011-03-22T23:59:59.000Z

52

PARS II Process Document - Project Phasing | Department of Energy  

Energy Savers [EERE]

PARS II Process Document - Project Phasing.pdf More Documents & Publications Proposed Data Elements for PARS II Web Application Slide 1 PARS II Standard Operating Procedure (SOP)...

53

Proposed Data Elements for PARS II Web Application | Department...  

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

Proposed Data Elements for PARS II Web Application Proposed Data Elements for PARS II Web Application Proposed Data Elements for PARS II Web Application More Documents &...

54

PARS II - Integrated Project Team Meeting | Department of Energy  

Energy Savers [EERE]

Meeting PARS II - Integrated Project Team Meeting More Documents & Publications PARS II 104 Contractor Monthly Upload Proposed Data Elements for PARS II Web Application Slide 1...

55

Variational Approach for Predicting the Load Deformation Response of a Double Stretched Membrane Reflector Module  

SciTech Connect (OSTI)

This report presents an analytical model useful for design and sizing purposes to describe the load deformation response of a stretched membrane reflector module structural system.

Murphy, L. M.

1985-10-01T23:59:59.000Z

56

Reflector and Shield Material Properties for Project Prometheus  

SciTech Connect (OSTI)

This letter provides updated reflector and shield preliminary material property information to support reactor design efforts. The information provided herein supersedes the applicable portions of Revision 1 to the Space Power Program Preliminary Reactor Design Basis (Reference (a)). This letter partially answers the request in Reference (b) to provide unirradiated and irradiated material properties for beryllium, beryllium oxide, isotopically enriched boron carbide ({sup 11}B{sub 4}C) and lithium hydride. With the exception of {sup 11}B{sub 4}C, the information is provided in Attachments 1 and 2. At the time of issuance of this document, {sup 11}B{sub 4}C had not been studied.

J. Nash

2005-11-02T23:59:59.000Z

57

Optical device with low electrical and thermal resistance bragg reflectors  

DOE Patents [OSTI]

A compound-semiconductor optical device and method. The optical device is provided with one or more asymmetrically-graded heterojunctions between compound semiconductor layers for forming a distributed Bragg reflector mirror having an improved electrical and thermal resistance. Efficient light-emitting devices such as light-emitting diodes, resonant-cavity light-emitting diodes, and vertical-cavity surface-emitting lasers may be formed according to the present invention, which may be applied to the formation of resonant-cavity photodetectors.

Lear, Kevin L. (Albuquerque, NM)

1996-01-01T23:59:59.000Z

58

PARS II Training Schedule | Department of Energy  

Office of Environmental Management (EM)

will certify that user to receive a PARS II user account. PARSIITrainingSchedule03-06-2014.pdf More Documents & Publications Slide 1 Slide 1 PARS II Course Registration Form...

59

Design constraints on Cherenkov telescopes with Davies-Cotton reflectors  

E-Print Network [OSTI]

This paper discusses the construction of high-performance ground-based gamma-ray Cherenkov telescopes with a Davies-Cotton reflector. For the design of such telescopes, usually physics constrains the field-of-view, while the photo-sensor size is defined by limited options. Including the effect of light-concentrators in front of the photo sensor, it is demonstrated that these constraints are enough to mutually constrain all other design parameters. The dependability of the various design parameters naturally arises once a relationship between the value of the point-spread functions at the edge of the field-of-view and the pixel field-of-view is introduced. To be able to include this constraint into a system of equations, an analytical description for the point-spread function of a tessellated Davies-Cotton reflector is derived from Taylor developments and ray-tracing simulations. Including higher order terms renders the result precise on the percent level. Design curves are provided within the typical phase sp...

Bretz, Thomas

2013-01-01T23:59:59.000Z

60

BLENDED CALCIUM ALUMINATE-CALCIUM SULFATE CEMENT-BASED GROUT FOR P-REACTOR VESSEL IN-SITU DECOMMISSIONING  

SciTech Connect (OSTI)

The objective of this report is to document laboratory testing of blended calcium aluminate - calcium hemihydrate grouts for P-Reactor vessel in-situ decommissioning. Blended calcium aluminate - calcium hemihydrate cement-based grout was identified as candidate material for filling (physically stabilizing) the 105-P Reactor vessel (RV) because it is less alkaline than portland cement-based grout which has a pH greater than 12.4. In addition, blended calcium aluminate - calcium hemihydrate cement compositions can be formulated such that the primary cementitious phase is a stable crystalline material. A less alkaline material (pH {<=} 10.5) was desired to address a potential materials compatibility issue caused by corrosion of aluminum metal in highly alkaline environments such as that encountered in portland cement grouts [Wiersma, 2009a and b, Wiersma, 2010, and Serrato and Langton, 2010]. Information concerning access points into the P-Reactor vessel and amount of aluminum metal in the vessel is provided elsewhere [Griffin, 2010, Stefanko, 2009 and Wiersma, 2009 and 2010, Bobbitt, 2010, respectively]. Radiolysis calculations are also provided in a separate document [Reyes-Jimenez, 2010].

Langton, C.; Stefanko, D.

2011-03-10T23:59:59.000Z

Note: This page contains sample records for the topic "aluminized reflector par" 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

Temperature and thermal stress distributions for the HFIR permanent reflector generated by nuclear heating  

SciTech Connect (OSTI)

The beryllium permanent reflector of the High Flux Isotope Reactor has the main functions for slowing down and reflecting the neutrons and housing the experimental facilities. The reflector is heated as a result of the nuclear reaction. Heat is removed mainly by the cooling water passing through the densely distributed coolant holes along the vertical or axial direction of the reflector. The reflector neutronic distribution and its heating rate are calculated by J.C. Gehin of the Oak Ridge National Laboratory by applying the Monte Carlo Code MCNP. The heat transfer boundary conditions along several reflector interfaces are estimated to remove additional heat from the reflector. The present paper is to report the calculation results of the temperature and the thermal stress distributions of the permanent reflector by applying the computer aided design code I-DEAS and the finite element code ABAQUS. The present calculation is to estimate the high stress areas as a result of the new beam tube cutouts along the horizontal mid-plane of the reflector of the recent reactor upgrade project. These high stresses were not able to be calculated in the preliminary design analysis in earlier 60`s. The heat transfer boundary conditions are used in this redesigned calculation. The material constants and the acceptance criteria for the allowable stresses are mainly based on that assumed in the preliminary design report.

Chang, S.J.

1998-04-01T23:59:59.000Z

62

DISSERTATION ELECTRON-REFLECTOR STRATEGY FOR CdTe THIN-FILM SOLAR CELLS  

E-Print Network [OSTI]

DISSERTATION ELECTRON-REFLECTOR STRATEGY FOR CdTe THIN-FILM SOLAR CELLS Submitted by Kuo-Jui Hsiao ELECTRON- REFLECTOR STRATEGY FOR CdTe THIN-FILM SOLAR CELLS BE ACCEPTED AS FULFILLING IN PART REQUIREMENTS SOLAR CELLS The CdTe thin-film solar cell has a large absorption coefficient and high theoretical

Sites, James R.

63

Reflector for efficient coupling of a laser beam to air or other fluids  

DOE Patents [OSTI]

A reflector array is disclosed herein that provides a controlled region or regions of plasma breakdowns from a laser beam produced at a remotely-based laser source. The plasma may be applied to produce thrust to propel a spacecraft, or to diagnose a laser beam, or to produce shock waves. The spacecraft propulsion system comprises a reflector array attached to the vehicle. The reflector array comprises a plurality of reflectors spaced apart on a reflective surface, with each reflector acting as an independent focusing mirror. The reflectors are spaced closely together to form a continuous or partially-continuous surface. The reflector array may be formed from a sheet of reflective material, such as copper or aluminum. In operation, a beam of electromagnetic energy, such as a laser beam, is directed at the reflectors which focus the reflected electromagnetic energy at a plurality of regions off the surface. The energy concentrated in the focal region causes a breakdown of the air or other fluid in the focal region, creating a plasma. Electromagnetic energy is absorbed in the plasma and it grows in volume, compressing and heating the adjacent fluid thereby providing thrust. Laser pulses may be applied repetitively. After each such thrust pulse, fresh air can be introduced next to the surface either laterally, or through a perforated surface. If air or some other gas or vapor is supplied, for example from a tank carried on board a vehicle, this invention may also be used to provide thrust in a vacuum environment. 10 figs.

Kare, J.T.

1992-10-06T23:59:59.000Z

64

Reflector for efficient coupling of a laser beam to air or other fluids  

DOE Patents [OSTI]

A reflector array is disclosed herein that provides a controlled region or regions of plasma breakdowns from a laser beam produced at a remotely-based laser source. The plasma may be applied to produce thrust to propel a spacecraft, or to diagnose a laser beam, or to produce shockwaves. The spacecraft propulsion system comprises a reflector array attached to the vehicle. The reflector array comprises a plurality of reflectors spaced apart on a reflective surface, with each reflector acting as an independent focusing mirror. The reflectors are spaced closely together to form a continuous or partially-continuous surface. The reflector array may be formed from a sheet of reflective material, such as copper or aluminum. In operation, a beam of electromagnetic energy, such as a laser beam, is directed at the reflectors which focus the reflected electromagnetic energy at a plurality of regions off the surface. The energy concentrated in the focal region causes a breakdown of the air or other fluid in the focal region, creating a plasma. Electromagnetic energy is absorbed in the plasma and it grows in volume, compressing and heating the adjacent fluid thereby providing thrust. Laser pulses may be applied repetitively. After each such thrust pulse, fresh air can be introduced next to the surface either laterally, or through a perforated surface. If air or some other gas or vapor is supplied, for example from a tank carried on board a vehicle, this invention may also be used to provide thrust in a vacuum environment.

Kare, Jordin T. (Pleasanton, CA)

1992-01-01T23:59:59.000Z

65

What is a seismic reflector like? Nathalie Favretto-Cristini1  

E-Print Network [OSTI]

What is a seismic reflector like? Nathalie Favretto-Cristini1 , Paul Cristini1 , and Eric de of reflectors from a seismic viewpoint. This region is repre- sented by a volume of integration of medium and syncline type. The maximum vertical extent might be larger than the seismic wavelengths for subcritical

Boyer, Edmond

66

Advanced Manufacture of Second-Surface, Silvered Glass Reflectors for High-Performance, Low-Cost CSP Collector Systems  

Broader source: Energy.gov [DOE]

Advanced Manufacture of Second-Surface, Silvered Glass Reflectors for High-Performance, Low-Cost CSP Collector Systems

67

Prsente par Seyed Mohammad SADEGHZADEH  

E-Print Network [OSTI]

THESE Présentée par Seyed Mohammad SADEGHZADEH (Ph.D. de Sharif University of Technology) Téhéran'amortissement des oscillations d'un réseau électrique à l'aide de SMES et de SSSC Composition du jury: Monsieur y sont représentées. Je ne saurais pas oublier mes professeurs de "Sharif University of Technology

Paris-Sud XI, Université de

68

Preparation of nuclear libraries with deterministic and stochastic methods for LWR reflectors  

SciTech Connect (OSTI)

The explicit reflector methodology is used in the system of codes CASMO-5 / SIMULATE-3 to include the reflector around the active core into the computational region and avoid adopting any ad-hoc or experimental albedo coefficients as boundary conditions. However, to complete the core calculation, a set of cross sections and discontinuity factors is needed for the reflector nodes and the accuracy of these nuclear parameters influences the final results, in particular along the peripheral regions of the core. In this paper the explicit reflector methodology of CASMO-5 is adopted to evaluate the few-group cross sections and discontinuity factors of the different reflector cases, based on the design of Generation II and III LWR reactors. In addition, in the perspective of using Monte-Carlo codes as a complementary option for lattice calculations of reflector configurations, the stochastic SERPENT code is also included as part of this benchmark. With the latter, the impact of applying 2-D reflector models with homogenized materials instead of explicit representation of the real geometrical structures is moreover evaluated and shown to be limited. (authors)

Canepa, S.; Hursin, M.; Ferroukhi, H.; Pautz, A. [Paul Scherrer Institut PSI, 5232, Villigen PSI (Switzerland)

2013-07-01T23:59:59.000Z

69

Design and fabrication of highly efficient electrooptic modulators using bragg grating reflectors  

E-Print Network [OSTI]

-directional coupling that includes an attenuation coefficient. The Bragg grating spectral characteristics are exploited to fabricate distributed Bragg feedback modulators (DBFM) and Bragg reflector Fabry-Perot modulators (BFPM). The sharp cut-off in transmission...

Kim, Ryoung-Han

2006-04-12T23:59:59.000Z

70

Photodetector with absorbing region having resonant periodic absorption between reflectors  

DOE Patents [OSTI]

A photodetector is disclosed that is responsive to a wavelength or wavelengths of interest which have heretofore been unrealized. The photodetector includes a resonant cavity structure bounded by first and second reflectors, the resonant cavity structure being resonant at the wavelength or wavelengths of interest for containing a plurality of standing waves therein. The photodetector further includes a radiation absorbing region disposed within the resonant cavity structure, the radiation absorbing region including a plurality of radiation absorbing layers spaced apart from one another by a distance substantially equal to a distance between antinodes of adjacent ones of the standing waves. Each of radiation absorbing layers is spatially positioned at a location of one of the antinodes of one of the standing waves such that radiation absorption is enhanced. The radiation absorbing layers may be either bulk layers or quantum wells includes a plurality of layers, each of which is comprised of a strained layer of InGaAs. Individual ones of the InGaAs layers are spaced apart from one another by a GaAs barrier layer. 11 figs.

Bryan, R.P.; Olbright, G.R.; Brennan, T.M.; Tsao, J.Y.

1995-02-14T23:59:59.000Z

71

avec modifications par: Topics by E-print Network  

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

Sciences Websites Summary: , David Wessel, and Kathy Yelick UC Berkeley Par Lab End-of-Project Party May 30, 2013 12;BERKELEY PAR LAB Par Lab Timeline 2 Initial Meetings...

72

amelioration par aromatherapie: Topics by E-print Network  

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

Sciences Websites Summary: , David Wessel, and Kathy Yelick UC Berkeley Par Lab End-of-Project Party May 30, 2013 12;BERKELEY PAR LAB Par Lab Timeline 2 Initial Meetings...

73

aromatiques par impact: Topics by E-print Network  

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

Sciences Websites Summary: , David Wessel, and Kathy Yelick UC Berkeley Par Lab End-of-Project Party May 30, 2013 12;BERKELEY PAR LAB Par Lab Timeline 2 Initial Meetings...

74

aqueuse par dynamique: Topics by E-print Network  

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

Sciences Websites Summary: , David Wessel, and Kathy Yelick UC Berkeley Par Lab End-of-Project Party May 30, 2013 12;BERKELEY PAR LAB Par Lab Timeline 2 Initial Meetings...

75

analyse par spectrometrie: Topics by E-print Network  

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

Sciences Websites Summary: , David Wessel, and Kathy Yelick UC Berkeley Par Lab End-of-Project Party May 30, 2013 12;BERKELEY PAR LAB Par Lab Timeline 2 Initial Meetings...

76

activity recall par: Topics by E-print Network  

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

Sciences Websites Summary: , David Wessel, and Kathy Yelick UC Berkeley Par Lab End-of-Project Party May 30, 2013 12;BERKELEY PAR LAB Par Lab Timeline 2 Initial Meetings...

77

aromatiques par spectrometrie: Topics by E-print Network  

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

Sciences Websites Summary: , David Wessel, and Kathy Yelick UC Berkeley Par Lab End-of-Project Party May 30, 2013 12;BERKELEY PAR LAB Par Lab Timeline 2 Initial Meetings...

78

alimentation par convertisseurs: Topics by E-print Network  

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

Sciences Websites Summary: , David Wessel, and Kathy Yelick UC Berkeley Par Lab End-of-Project Party May 30, 2013 12;BERKELEY PAR LAB Par Lab Timeline 2 Initial Meetings...

79

atomiques lies par: Topics by E-print Network  

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

Sciences Websites Summary: , David Wessel, and Kathy Yelick UC Berkeley Par Lab End-of-Project Party May 30, 2013 12;BERKELEY PAR LAB Par Lab Timeline 2 Initial Meetings...

80

analyse par activation: Topics by E-print Network  

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

Sciences Websites Summary: , David Wessel, and Kathy Yelick UC Berkeley Par Lab End-of-Project Party May 30, 2013 12;BERKELEY PAR LAB Par Lab Timeline 2 Initial Meetings...

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While these samples are representative of the content of NLEBeta,
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We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


81

accords conclus par: Topics by E-print Network  

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

Sciences Websites Summary: , David Wessel, and Kathy Yelick UC Berkeley Par Lab End-of-Project Party May 30, 2013 12;BERKELEY PAR LAB Par Lab Timeline 2 Initial Meetings...

82

assistee par ordinateur: Topics by E-print Network  

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

Sciences Websites Summary: , David Wessel, and Kathy Yelick UC Berkeley Par Lab End-of-Project Party May 30, 2013 12;BERKELEY PAR LAB Par Lab Timeline 2 Initial Meetings...

83

aerosol anthropogenique par: Topics by E-print Network  

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

Sciences Websites Summary: , David Wessel, and Kathy Yelick UC Berkeley Par Lab End-of-Project Party May 30, 2013 12;BERKELEY PAR LAB Par Lab Timeline 2 Initial Meetings...

84

au traitement par: Topics by E-print Network  

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

Sciences Websites Summary: , David Wessel, and Kathy Yelick UC Berkeley Par Lab End-of-Project Party May 30, 2013 12;BERKELEY PAR LAB Par Lab Timeline 2 Initial Meetings...

85

approche par homogeneisation: Topics by E-print Network  

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

Sciences Websites Summary: , David Wessel, and Kathy Yelick UC Berkeley Par Lab End-of-Project Party May 30, 2013 12;BERKELEY PAR LAB Par Lab Timeline 2 Initial Meetings...

86

assistee par complexation: Topics by E-print Network  

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

Sciences Websites Summary: , David Wessel, and Kathy Yelick UC Berkeley Par Lab End-of-Project Party May 30, 2013 12;BERKELEY PAR LAB Par Lab Timeline 2 Initial Meetings...

87

accumulator ring par: Topics by E-print Network  

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

Sciences Websites Summary: , David Wessel, and Kathy Yelick UC Berkeley Par Lab End-of-Project Party May 30, 2013 12;BERKELEY PAR LAB Par Lab Timeline 2 Initial Meetings...

88

absolu par diffraction: Topics by E-print Network  

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

Sciences Websites Summary: , David Wessel, and Kathy Yelick UC Berkeley Par Lab End-of-Project Party May 30, 2013 12;BERKELEY PAR LAB Par Lab Timeline 2 Initial Meetings...

89

acceleration ionique par: Topics by E-print Network  

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

Sciences Websites Summary: , David Wessel, and Kathy Yelick UC Berkeley Par Lab End-of-Project Party May 30, 2013 12;BERKELEY PAR LAB Par Lab Timeline 2 Initial Meetings...

90

action research par: Topics by E-print Network  

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

Sciences Websites Summary: , David Wessel, and Kathy Yelick UC Berkeley Par Lab End-of-Project Party May 30, 2013 12;BERKELEY PAR LAB Par Lab Timeline 2 Initial Meetings...

91

atmospherique par scintillation: Topics by E-print Network  

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

Sciences Websites Summary: , David Wessel, and Kathy Yelick UC Berkeley Par Lab End-of-Project Party May 30, 2013 12;BERKELEY PAR LAB Par Lab Timeline 2 Initial Meetings...

92

automatique par tout: Topics by E-print Network  

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

Sciences Websites Summary: , David Wessel, and Kathy Yelick UC Berkeley Par Lab End-of-Project Party May 30, 2013 12;BERKELEY PAR LAB Par Lab Timeline 2 Initial Meetings...

93

activees par analyse: Topics by E-print Network  

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

Sciences Websites Summary: , David Wessel, and Kathy Yelick UC Berkeley Par Lab End-of-Project Party May 30, 2013 12;BERKELEY PAR LAB Par Lab Timeline 2 Initial Meetings...

94

anneaux par imagerie: Topics by E-print Network  

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

Sciences Websites Summary: , David Wessel, and Kathy Yelick UC Berkeley Par Lab End-of-Project Party May 30, 2013 12;BERKELEY PAR LAB Par Lab Timeline 2 Initial Meetings...

95

autocatalytic recombiner par: Topics by E-print Network  

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

Sciences Websites Summary: , David Wessel, and Kathy Yelick UC Berkeley Par Lab End-of-Project Party May 30, 2013 12;BERKELEY PAR LAB Par Lab Timeline 2 Initial Meetings...

96

apres traitement par: Topics by E-print Network  

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

Sciences Websites Summary: , David Wessel, and Kathy Yelick UC Berkeley Par Lab End-of-Project Party May 30, 2013 12;BERKELEY PAR LAB Par Lab Timeline 2 Initial Meetings...

97

analyse instrumentale par: Topics by E-print Network  

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

Sciences Websites Summary: , David Wessel, and Kathy Yelick UC Berkeley Par Lab End-of-Project Party May 30, 2013 12;BERKELEY PAR LAB Par Lab Timeline 2 Initial Meetings...

98

atopoietique induit par: Topics by E-print Network  

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

Sciences Websites Summary: , David Wessel, and Kathy Yelick UC Berkeley Par Lab End-of-Project Party May 30, 2013 12;BERKELEY PAR LAB Par Lab Timeline 2 Initial Meetings...

99

PARS II Data Quality Memorandum from Deputy Secretary Poneman...  

Office of Environmental Management (EM)

PARS II Data Quality Memorandum from Deputy Secretary Poneman (June 19, 2012) PARS II Data Quality Memorandum from Deputy Secretary Poneman (June 19, 2012) PARS II Data Quality.pdf...

100

PARS II CPP Upload Template File | Department of Energy  

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

teProjectTemplate.zip More Documents & Publications Proposed Data Elements for PARS II Web Application PARS II - Integrated Project Team Meeting PARS II End-of-Month Checklist...

Note: This page contains sample records for the topic "aluminized reflector par" 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

High-pressure sound velocities and elasticity of aluminous MgSiO3 perovskite to 45 GPa: Implications for lateral heterogeneity in Earth's  

E-Print Network [OSTI]

High-pressure sound velocities and elasticity of aluminous MgSiO3 perovskite to 45 GPa lateral variations of seismic wave speeds in Earth's lower mantle are due at least in part to a chemical, J. M., J. Zhang, J. Shu, S. V. Sinogeikin, and J. D. Bass (2005), High-pressure sound velocities

Jackson, Jennifer M.

102

Enhanced quantum efficiency of amorphous silicon thin film solar cells with the inclusion of a rear-reflector thin film  

SciTech Connect (OSTI)

We investigated the growth mechanism of amorphous silicon thin films by implementing hot-wire chemical vapor deposition and fabricated thin film solar cell devices. The fabricated cells showed efficiencies of 7.5 and 8.6% for the samples without and with the rear-reflector decomposed by sputtering, respectively. The rear-reflector enhances the quantum efficiency in the infrared spectral region from 550 to 750?nm. The more stable quantum efficiency of the sample with the inclusion of a rear-reflector than the sample without the rear-reflector due to the bias effect is related to the enhancement of the short circuit current.

Park, Seungil [Department of Mechanical Engineering, Chonbuk National University, Jeonju 561-756 (Korea, Republic of); Energy Conversions Technology Center, Korea Institute of Industrial Technology, Cheonan 331-825 (Korea, Republic of); Yong Ji, Hyung; Jun Kim, Myeong; Hyeon Peck, Jong [Energy Conversions Technology Center, Korea Institute of Industrial Technology, Cheonan 331-825 (Korea, Republic of); Kim, Keunjoo, E-mail: kimk@chonbuk.ac.kr [Department of Mechanical Engineering, Chonbuk National University, Jeonju 561-756 (Korea, Republic of)

2014-02-17T23:59:59.000Z

103

Midtemperature solar systems test facility predictions for thermal performance of the Acurex solar collector with FEK 244 reflector surface  

SciTech Connect (OSTI)

Thermal performance predictions are presented for the Acurex solar collector, with FEK 244 reflector surface, for three output temperatures at five cities in the United States.

Harrison, T.D.

1981-01-01T23:59:59.000Z

104

Heavy reflector experiments in the IPEN/MB-01 reactor: Stainless steel, carbon steel and nickel  

SciTech Connect (OSTI)

New experiments devoted to the measurements of physical parameters of a light water core surrounded by a heavy reflector were performed in the IPEN/MB-01 research reactor facility. These experiments comprise three sets of heavy reflector (SS-304, Carbon Steel, and Nickel) in a form of laminates around 3 mm thick. Each set was introduced individually in the west face of the core of the IPEN/MB-01 reactor. The aim here is to provide high quality experimental data for the interpretation and validation of the SS-304 heavy reflector calculation methods. The experiments of Carbon Steel, which is composed mainly of iron, and Nickel were performed to provide a consistent and an interpretative check for the SS-304 reflector experiment. The experimental results comprise critical control bank positions, temperatures and reactivities as a function of the number of the plates. Particularly to the case of Nickel, the experimental data are unique of its kind. The theoretical analysis was performed by MCNP-5 with the nuclear data library ENDF/B-VII.0. It was shown that this nuclear data library has a very good performance up to thirteen plates and overestimates the reactivity for higher number of plates independently of the type of the reflector.

Santos, Adimir dos; Andrade e Silva, Graciete Simoes de; Jerez, Rogerio; Liambos Mura, Luis Felipe; Fuga, Rinaldo [Instituto de Pesquisas Energeticas e Nucleares - IPEN-CNEN/SP Av. Prof. Lineu Prestes 2242 - CEP 05508-000 Sao Paulo, SP (Brazil)

2013-05-06T23:59:59.000Z

105

ANALYSE AUTOMATIQUE PAR MINICALCULATEUR DES CONTRACTIONS  

E-Print Network [OSTI]

motricity, Diet, Reticular motricity, Ruminants, Electromyogram. INTRODUCTION Chez les ruminants, dont l motrice débute par la contrac- tion rapide (3 à 7 s) du réseau : biphasique chez l'animal au repos ou

Paris-Sud XI, Université de

106

Collge doctoral Nattribu par la bibliothque  

E-Print Network [OSTI]

..............6 Figure I. 3 : La force motrice est l'écart par rapport à l.........................................17 Figure I. 8 : Variation du temps d'induction en fonction de la force motrice

Paris-Sud XI, Université de

107

PARS II User Guide | Department of Energy  

Office of Environmental Management (EM)

to assist DOE end-users in performing their respective functions within the PARS II web application. The document provides a description and "How To" for the major functions...

108

Long-range, full-duplex, modulated-reflector cell phone for voice/data transmission  

DOE Patents [OSTI]

A long-range communications apparatus utilizing modulated-reflector technology is described. The apparatus includes an energy-transmitting base station and remote units that do not emit radiation in order to communicate with the base station since modulated-reflector technology is used whereby information is attached to an RF carrier wave originating from the base station which is reflected by the remote unit back to the base station. Since the remote unit does not emit radiation, only a low-power power source is required for its operation. Information from the base station is transmitted to the remote unit using a transmitter and receiver, respectively. The range of such a communications system is determined by the properties of a modulated-reflector half-duplex link.

Neagley, Daniel L. (Albuquerque, NM); Briles, Scott D. (Los Alamos, NM); Coates, Don M. (Santa Fe, NM); Freund, Samuel M. (Los Alamos, NM)

2002-01-01T23:59:59.000Z

109

N attribu par la bibliothque prsente  

E-Print Network [OSTI]

, Signal présentée et soutenue publiquement par Héctor-Moisés VALDES-GONZALEZ Ingénieur électricien et MSc GENTIL Président M. Jean-Luc GOUZE Rapporteur M. José RAGOT Rapporteur M. Jean-Marie FLAUS Directeur de thèse M. Lionel BOILLEREAUX Examinateur M. Gonzalo ACU�A Examinateur Thèse préparée au sein de l

Paris-Sud XI, Université de

110

Simulink/PARS Integration Support  

SciTech Connect (OSTI)

The state of the art for signal processor hardware has far out-paced the development tools for placing applications on that hardware. In addition, signal processors are available in a variety of architectures, each uniquely capable of handling specific types of signal processing efficiently. With these processors becoming smaller and demanding less power, it has become possible to group multiple processors, a heterogeneous set of processors, into single systems. Different portions of the desired problem set can be assigned to different processor types as appropriate. As software development tools do not keep pace with these processors, especially when multiple processors of different types are used, a method is needed to enable software code portability among multiple processors and multiple types of processors along with their respective software environments. Sundance DSP, Inc. has developed a software toolkit called “PARS”, whose objective is to provide a framework that uses suites of tools provided by different vendors, along with modeling tools and a real time operating system, to build an application that spans different processor types. The software language used to express the behavior of the system is a very high level modeling language, “Simulink”, a MathWorks product. ORNL has used this toolkit to effectively implement several deliverables. This CRADA describes this collaboration between ORNL and Sundance DSP, Inc.

Vacaliuc, B. [ORNL] [ORNL; Nakhaee, N. [Sundance DSP, Inc.] [Sundance DSP, Inc.

2013-12-18T23:59:59.000Z

111

Wafer-Bonded Internal Back-Surface Reflectors for Enhanced TPV Performance  

SciTech Connect (OSTI)

This paper discusses recent efforts to realize GaInAsSb/GaSb TPV cells with an internal back-surface reflector (BSR). The cells are fabricated by wafer bonding the GaInAsSb/GaSb device layers to GaAs substrates with a dielectric/Au reflector, and subsequently removing the GaSb substrate. The internal BSR enhances optical absorption within the device while the dielectric layer provides electrical isolation. This approach is compatible with monolithic integration of series-connected TPV cells and can mitigate the requirements of filters used for front-surface spectral control.

C.A. Wang; P.G. Murphy; P.W. O'Brien; D.A. Shiau; A.C. Anderson; Z.L. Liau; D.M. Depoy; G. Nichols

2002-08-12T23:59:59.000Z

112

INCREASED CELL EFFICIENCY IN InGaAs THIN FILM SOLAR CELLS WITH DIELECTRIC AND METAL BACK REFLECTORS  

E-Print Network [OSTI]

INCREASED CELL EFFICIENCY IN InGaAs THIN FILM SOLAR CELLS WITH DIELECTRIC AND METAL BACK REFLECTORS solar cells using back reflectors. We studied absorption enhancement in InGaAs and InGaAsP thin film and metal, on InGaAs thin film solar cell performance by device modeling and nu- merical simulations. DEVICE

Atwater, Harry

113

CONTRIBUTION A L'TUDE DES SOLUTIONS DE GAZ PAR SPECTROGRAPHIE INFRAROUGE Par Mlle G. PAILLARD.  

E-Print Network [OSTI]

disparaît en solution; il y a donc empêchement de la rotation par interactions moléculaires; 2° les ba ndes atmosphé- rique) à l'état de solution se traduisant par une augmentation des interactions moléculaires Perkin-Elmer : un spectrographe simple faisceau à prisme de fluorure de lithium dans la région 2 5oo-6 50

Boyer, Edmond

114

A SOLAR STILL AUGMENTED WITH A FLAT-PLATE COLLECTOR AND A REFLECTOR  

E-Print Network [OSTI]

A SOLAR STILL AUGMENTED WITH A FLAT-PLATE COLLECTOR AND A REFLECTOR A. Saleh A. Badran Mechanical ­ Jordan Amman ­ Jordan e-mail: asaleh@philadelphia.edu.jo e-mail: badran@ju.edu.jo ABSTRACT A solar distillation system was built and tested to study the effect of increasing the solar radiation incident

115

Reflector modelling of small high leakage cores making use of multi-group nodal equivalence theory  

SciTech Connect (OSTI)

This research focuses on modelling reflectors in typical material testing reactors (MTRs). Equivalence theory is used to homogenise and collapse detailed transport solutions to generate equivalent nodal parameters and albedo boundary conditions for reflectors, for subsequent use in full core nodal diffusion codes. This approach to reflector modelling has been shown to be accurate for two-group large commercial light water reactor (LWR) analysis, but has not been investigated for MTRs. MTRs are smaller, with much larger leakage, environment sensitivity and multi-group spectrum dependencies than LWRs. This study aims to determine if this approach to reflector modelling is an accurate and plausible homogenisation technique for the modelling of small MTR cores. The successful implementation will result in simplified core models, better accuracy and improved efficiency of computer simulations. Codes used in this study include SCALE 6.1, OSCAR-4 and EQUIVA (the last two codes are developed and used at Necsa). The results show a five times reduction in calculational time for the proposed reduced reactor model compared to the traditional explicit model. The calculated equivalent parameters however show some sensitivity to the environment used to generate them. Differences in the results compared to the current explicit model, require more careful investigation including comparisons with a reference result, before its implementation can be recommended. (authors)

Theron, S. A. [South African Nuclear Energy Corporation (Necsa), PO Box 582, Pretoria, 0001 (South Africa); Reitsma, F. [Calvera Consultants, PO Box 150, Strubensvallei, 1735 (South Africa)

2012-07-01T23:59:59.000Z

116

Comparison of fixed asymmetrical and symmetrical reflectors for evacuated tube solar receivers  

SciTech Connect (OSTI)

A computer simulation of the relative performance of certain truncated symmetrical and asymmetrical fixed reflector designs for solar energy collection was performed. The comparison was on the basis of annual energy delivered to a circular cylindrical evacuated tube receiver per unit of mirror area, but seasonal load information was also included to determine possible seasonal load matching advantages of one type of collector over another when storage is employed. Circumsolar radiation models based on recent correlations in the literature was included. Major conclusions were that: (1) Annual solar fractions of between 80% and 95% seem to be feasible with a load matching collector used with moderate energy storage, with 80-90% being a likely optimum; (2) CPC reflectors always gave the best annual output performance per unit of mirror area, and the lowest receiver area for situations of constant annual load, regardless of whether the storage is included in the system; (3) Asymmetrical concentrator are more cost-effective for strongly seasonally asymmetrical load patterns; (4) Fixed parabolic systems required much more receiver area than the symmetrical CPC and asymmetrical system investigated; (5) Concentration levels utilizable in fixed systems are higher than previously supposed, with 3.5:1 in an asymmetrical reflector being optimal or nearly optimal for the domestic load pattern used in the study; (6) Using a load matched reflector, the amount of storage required to achieve solar fractions of total thermal energy (space heating, water heating, clothes drying) above 90% in a residence appears to be much lower than previously thought.

Mills, D.R.; Monger, A. (Univ. of Sydney (Australia)); Morrison, G.L. (Univ. of New South Wales, Sydney (Australia))

1994-07-01T23:59:59.000Z

117

An Advanced Computational Scheme for the Optimization of 2D Radial Reflectors in Pressurized Water Reactors  

E-Print Network [OSTI]

This paper presents a computational scheme for the determination of equivalent 2D multi-group heterogeneous reflectors in a Pressurized Water Reactor (PWR). The proposed strategy is to define a full-core calculation consistent with a reference lattice code calculation such as the Method Of Characteristics (MOC) as implemented in APOLLO2 lattice code. The computational scheme presented here relies on the data assimilation module known as "Assimilation de donn\\'{e}es et Aide \\`{a} l'Optimisation (ADAO)" of the SALOME platform developed at \\'{E}lectricit\\'{e} De France (EDF), coupled with the full-core code COCAGNE and with the lattice code APOLLO2. A first validation of the computational scheme is made using the OPTEX reflector model developed at \\'{E}cole Polytechnique de Montr\\'{e}al (EPM). As a result, we obtain 2D multi-group, spatially heterogeneous 2D reflectors, using both diffusion or $\\text{SP}_{\\text{N}}$ operators. We observe important improvements of the power discrepancies distribution over the core when using reflectors computed with the proposed computational scheme, and the $\\text{SP}_{\\text{N}}$ operator enables additional improvements.

Thomas Clerc; Alain Hébert; Hadrien Leroyer; Jean-Philippe Argaud; Bertrand Bouriquet; Agélique Ponçot

2014-05-12T23:59:59.000Z

118

Analysis of large reflector antennas using CSP fringe formulation and higher-order diffraction  

E-Print Network [OSTI]

Analysis of large reflector antennas using CSP fringe formulation and higher-order diffraction- tric conductor (PEC) objects when illuminated by a Complex Source Points (CSP) beam expansion (S of a CSP-expansion illumination. In this work we discuss an application of the CSP fringe formulation

Nehorai, Arye

119

Steam-circuit Model for the Compact Linear Fresnel Reflector , G. L. Morrison1  

E-Print Network [OSTI]

Steam-circuit Model for the Compact Linear Fresnel Reflector Prototype J. D. Pye1 , G. L. Morrison1 , D. R. Mills2 , P. Le Lievre3 and M. Behnia1 1 School of Mechanical and Manufacturing, University currently in the prototype stage at the Liddell power station in the Hunter Valley, NSW. A system

120

DESIGN AND TESTING FOR NOVEL JOINT FOR WAVE REFLECTORS James Tedd1  

E-Print Network [OSTI]

tests. This is a steel bar reinforced concrete tank with the dimensions 15.7 m long, 8.5 m wide and 1DESIGN AND TESTING FOR NOVEL JOINT FOR WAVE REFLECTORS James Tedd1 , Erik Friis-Madsen2 , and Peter of the Wave Dragon has begun. This paper describes the design and testing process behind this. Tests conducted

Note: This page contains sample records for the topic "aluminized reflector par" 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

ParCAT: Parallel Climate Analysis Toolkit  

SciTech Connect (OSTI)

Climate science is employing increasingly complex models and simulations to analyze the past and predict the future of Earth s climate. This growth in complexity is creating a widening gap between the data being produced and the ability to analyze the datasets. Parallel computing tools are necessary to analyze, compare, and interpret the simulation data. The Parallel Climate Analysis Toolkit (ParCAT) provides basic tools to efficiently use parallel computing techniques to make analysis of these datasets manageable. The toolkit provides the ability to compute spatio-temporal means, differences between runs or differences between averages of runs, and histograms of the values in a data set. ParCAT is implemented as a command-line utility written in C. This allows for easy integration in other tools and allows for use in scripts. This also makes it possible to run ParCAT on many platforms from laptops to supercomputers. ParCAT outputs NetCDF files so it is compatible with existing utilities such as Panoply and UV-CDAT. This paper describes ParCAT and presents results from some example runs on the Titan system at ORNL.

Smith, Brian E [ORNL; Steed, Chad A [ORNL; Shipman, Galen M [ORNL; Ricciuto, Daniel M [ORNL; Thornton, Peter E [ORNL; Wehner, Michael [Lawrence Berkeley National Laboratory (LBNL); Williams, Dean N. [Lawrence Livermore National Laboratory (LLNL)

2013-01-01T23:59:59.000Z

122

The effect of the host composition on the lifetime decay properties of barium/strontium aluminates compounds  

SciTech Connect (OSTI)

This paper reports the influence of the structural change on the luminescence of Eu-doped barium/strontium aluminates when excited with monochromatic X-rays (also known as X-ray excited optical luminescence—XEOL). Ba{sub 1?x}Sr{sub x}Al{sub 2}O{sub 4} samples, with 0?

Rezende, Marcos V. dos S., E-mail: mvsrezende@gmail.com [Departamento de Física, Universidade Federal de Sergipe, 49500-000 Itabaiana, SE (Brazil); Andrade, A. B.; Valerio, Mário E. G. [Departamento de Física, Universidade Federal de Sergipe, 49100-000 São Cristóvão, SE (Brazil); Montes, Paulo J. R [Instituto Federal de Sergipe, 49400-000 Lagarto, SE (Brazil)

2014-03-14T23:59:59.000Z

123

CHAMBRE A TINCELLES CYLINDRIQUE A FILS AVEC ENREGISTREMENT PAR FERRITES  

E-Print Network [OSTI]

lues sur chaque matrice, par groupe de 32 en 8 fois chacune. L'enre- FIG. 3. Acquisition des données

Boyer, Edmond

124

AGirenPArTenAriAT despartenariats  

E-Print Network [OSTI]

la gestion des écosystèmes majeurs de la région1 . Le séminaire Les intérieurs du Maroc a par'Institut national de recherche halieutique au Maroc,l'�colenationaled'ingénieursdeTunisoul'Institutnatio- nal

125

SLECTEURS D'AMPLITUDE Par R. WAHL.  

E-Print Network [OSTI]

67 A. S�LECTEURS D'AMPLITUDE Par R. WAHL. Commissariat à l'�nergie atomique. Laboratoires du Fort maximum Amax (fig. 1). - On appelle discriminafeur d'amplitude un appareil Fig. 1.. . qui transmet toute contre, un sélecteur d'amplitude,ne transmet que les impulsions dont l'amplitude Amax est comprise entre

Paris-Sud XI, Université de

126

pr esent ee par Pascal Brand  

E-Print Network [OSTI]

TH#12;ESE pr esent ee par Pascal Brand pour obtenir le grade de Docteur de l'Universit e Claude Giraudon Examinateurs: M. Serge Castan M. Roger Mohr Th#12;ese pr epar ee au sein du laboratoire Lifia Imag de coins dans l'image : : : : : : : : : : : : : : : : : : : 31 2.1.3 Extraction de cibles circulaires

Paris-Sud XI, Université de

127

Asservissement par PID Application du PWM au pont en H  

E-Print Network [OSTI]

Plan Asservissement par PID PWM Ponts en H Application du PWM au pont en H Bibliographie Asservissement par PID, PWM et Ponts en H Siwar, Cédric, Samuel Télécom Paristech 4 mars 2011 Siwar, Cédric, Samuel ROSE 1 / 33 4 mars 2011 #12;Plan Asservissement par PID PWM Ponts en H Application du PWM au pont

Tardieu, Samuel

128

INSTITUT NATIONAL POLYTECHNIQUE DE GRENOBLE N attribu par la bibliothque  

E-Print Network [OSTI]

ou friction stir welding (FSW) 4 A-1 Principe du soudage par friction malaxage (friction stir welding septembre 2004 Titre : Genèse des microstructures lors du soudage par friction malaxage d'alliages d MATIERES i INTRODUCTION 1 CHAPITRE I. Etude bibliographique 4 A. Procédé de soudage par friction malaxage

Paris-Sud XI, Université de

129

L'ABSORPTION DES ULTRASONS PAR CERTAINES CTONES Par S. PARTHASARATHY et V. NARASIMHAN,  

E-Print Network [OSTI]

957. L'ABSORPTION DES ULTRASONS PAR CERTAINES C�TONES Par S. PARTHASARATHY et V. NARASIMHAN coefficient d'absorption ont été mesurés dans plusieurs cétones à différentes températures et les résultats variation de l'absorption avec la température était positif dans l'intervalle considéré dans ce travail

Paris-Sud XI, Université de

130

Comptes Rendus des JNC 17 -Poitiers 2011 Simulation par lments finis des procds par infusion de rsine  

E-Print Network [OSTI]

Comptes Rendus des JNC 17 - Poitiers 2011 Simulation par éléments finis des procédés par infusion de résine Finite Simulation of the liquid infusion processes G. Pacquaut, J. Bruchon, N. Moulin, S permettant de simuler par éléments finis les procé- dés par infusion de résine au travers de renforts fibreux

Paris-Sud XI, Université de

131

The development of large area saturable Bragg reflectors for the generation of widely-tunable ultra-short pulses  

E-Print Network [OSTI]

This thesis focuses on the realization of two photonic devices; 1) semiconductor lasers and 2) large area broadband Saturable Bragg Reflectors (SBRs). Semiconductor lasers explore the use of 3D and 2D quantum confinement ...

Nabanja, Sheila P

2012-01-01T23:59:59.000Z

132

Solar receiver heliostat reflector having a linear drive and position information system  

DOE Patents [OSTI]

A heliostat for a solar receiver system comprises an improved drive and control system for the heliostat reflector assembly. The heliostat reflector assembly is controllably driven in a predetermined way by a light-weight drive system so as to be angularly adjustable in both elevation and azimuth to track the sun and efficiently continuously reflect the sun's rays to a focal zone, i.e., heat receiver, which forms part of a solar energy utilization system, such as a solar energy fueled electrical power generation system. The improved drive system includes linear stepping motors which comprise low weight, low cost, electronic pulse driven components. One embodiment comprises linear stepping motors controlled by a programmed, electronic microprocessor. Another embodiment comprises a tape driven system controlled by a position control magnetic tape.

Horton, Richard H. (Schenectady, NY)

1980-01-01T23:59:59.000Z

133

Radar cross section of triangular trihedral reflector with extended bottom plate.  

SciTech Connect (OSTI)

Trihedral corner reflectors are the preferred canonical target for SAR performance evaluation for many radar development programs. The conventional trihedrals have problems with substantially reduced Radar Cross Section (RCS) at low grazing angles, unless they are tilted forward, but in which case other problems arise. Consequently there is a need for better low grazing angle performance for trihedrals. This is facilitated by extending the bottom plate. A relevant analysis of RCS for an infinite ground plate is presented. Practical aspects are also discussed.

Brock, Billy C.; Doerry, Armin Walter

2009-05-01T23:59:59.000Z

134

Transpolarising Trihedral Corner Reflector Characterisation Using a GB-SAR System  

E-Print Network [OSTI]

The use of a low profile, light weight and easy to fabricate transpolarising surface placed on one side of a trihedral corner reflector (TCR) as polarimetric calibrator is presented in this letter. The transpolarising-TCR (TTCR) presents a high backscattered cross-polar response contrary to standard TCRs. The performance of this device has been tested at X-band using the UPC GB-SAR.

Ferrer, Pere J; Aguasca, Albert; Pipia, Luca; Gonzalez-Arbesu, Jose M; Fabregas, Xavier; Romeu, Jordi

2011-01-01T23:59:59.000Z

135

Transpolarising Trihedral Corner Reflector Characterisation Using a GB-SAR System  

E-Print Network [OSTI]

The use of a low profile, light weight and easy to fabricate transpolarising surface placed on one side of a trihedral corner reflector (TCR) as polarimetric calibrator is presented in this letter. The transpolarising-TCR (TTCR) presents a high backscattered cross-polar response contrary to standard TCRs. The performance of this device has been tested at X-band using the UPC GB-SAR.

Pere J. Ferrer; Carlos Lopez-Martinez; Albert Aguasca; Luca Pipia; Jose M. Gonzalez-Arbesu; Xavier Fabregas; Jordi Romeu

2011-02-10T23:59:59.000Z

136

Advanced ultraviolet-resistant silver mirrors for use in solar reflectors  

DOE Patents [OSTI]

A silver mirror construction that maintains a high percentage of hemispherical reflectance throughout the UV and visible spectrum when used in solar reflectors, comprising:a) a pressure sensitive adhesive layer positioned beneath a silver overlay;b) a polymer film disposed on the silver overlay;c) an adhesive layer positioned on the polymer film; andd) a UV screening acrylic film disposed on the adhesive layer.

Jorgensen, Gary J. (Pine, CO); Gee, Randy (Arvada, CO)

2009-11-03T23:59:59.000Z

138

The formation of optical membrane reflector surfaces using uniform pressure loading  

SciTech Connect (OSTI)

Potentially high quality optical reflector surfaces are attainable with the use of pressure formed membranes. Such reflector surfaces offer the prospect of very low weight and low cost. The formation of such surfaces, using initially flat circular membranes with uniform pressure loading, is studied in this paper. Finite axisymmetric deformations, along with both linear and nonlinear material response is considered. A wide range of focal-length-to-diameter ratios (above 0.6) are addressed and the structural/optical response mechanisms that lead to optical distortions relative to ideal parabolic reflector shapes are also considered. Results show that elastic material response can often lead to a significantly larger deviation from the ideal shape than will inelastic material response. This results primarily from the ability to limit stress nonuniformities when inelastic material response is operative. Furthermore, when under pressure loading the membrane focal length decreases monotonically with increasing radius for both linear and nonlinear material response. Further, the predicted focal length variation is increasingly nonlinear near the membrane support.

Murphy, L.M.; Tuan, C.

1987-08-01T23:59:59.000Z

139

An Advanced Computational Scheme for the Optimization of 2D Radial Reflectors in Pressurized Water Reactors  

E-Print Network [OSTI]

This paper presents a computational scheme for the determination of equivalent 2D multi-group heterogeneous reflectors in a Pressurized Water Reactor (PWR). The proposed strategy is to define a full-core calculation consistent with a reference lattice code calculation such as the Method Of Characteristics (MOC) as implemented in APOLLO2 lattice code. The computational scheme presented here relies on the data assimilation module known as "Assimilation de donn\\'{e}es et Aide \\`{a} l'Optimisation (ADAO)" of the SALOME platform developed at \\'{E}lectricit\\'{e} De France (EDF), coupled with the full-core code COCAGNE and with the lattice code APOLLO2. A first validation of the computational scheme is made using the OPTEX reflector model developed at \\'{E}cole Polytechnique de Montr\\'{e}al (EPM). As a result, we obtain 2D multi-group, spatially heterogeneous 2D reflectors, using both diffusion or $\\text{SP}_{\\text{N}}$ operators. We observe important improvements of the power discrepancies distribution over the cor...

Clerc, Thomas; Leroyer, Hadrien; Argaud, Jean-Philippe; Bouriquet, Bertrand; Ponçot, Agélique

2014-01-01T23:59:59.000Z

140

Design of Semiconductor-Based Back Reflectors for High Voc Monolithic Multijunction Solar Cells: Preprint  

SciTech Connect (OSTI)

State-of-the-art multijunction cell designs have the potential for significant improvement before going to higher number of junctions. For example, the Voc can be substantially increased if the photon recycling taking place in the junctions is enhanced. This has already been demonstrated (by Alta Devices) for a GaAs single-junction cell. For this, the loss of re-emitted photons by absorption in the underlying layers or substrate must be minimized. Selective back surface reflectors are needed for this purpose. In this work, different architectures of semiconductor distributed Bragg reflectors (DBR) are assessed as the appropriate choice for application in monolithic multijunction solar cells. Since the photon re-emission in the photon recycling process is spatially isotropic, the effect of the incident angle on the reflectance spectrum is of central importance. In addition, the DBR structure must be designed taking into account its integration into the monolithic multijunction solar cells, concerning series resistance, growth economics, and other issues. We analyze the tradeoffs in DBR design complexity with all these requirements to determine if such a reflector is suitable to improve multijunction solar cells.

Garcia, I.; Geisz, J.; Steiner, M.; Olson, J.; Friedman, D.; Kurtz, S.

2012-06-01T23:59:59.000Z

Note: This page contains sample records for the topic "aluminized reflector par" 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

Method of manufacturing large dish reflectors for a solar concentrator apparatus  

DOE Patents [OSTI]

A method of manufacturing monolithic glass reflectors for concentrating sunlight in a solar energy system is disclosed. The method of manufacturing allows large monolithic glass reflectors to be made from float glass in order to realize significant cost savings on the total system cost for a solar energy system. The method of manufacture includes steps of heating a sheet of float glass positioned over a concave mold until the sheet of glass sags and stretches to conform to the shape of the mold. The edges of the dish-shaped glass are rolled for structural stiffening around the periphery. The dish-shaped glass is then silvered to create a dish-shaped mirror that reflects solar radiation to a focus. The surface of the mold that contacts the float glass preferably has a grooved surface profile comprising a plurality of cusps and concave valleys. This grooved profile minimizes the contact area and marring of the specular glass surface, reduces parasitic heat transfer into the mold and increases mold lifetime. The disclosed method of manufacture is capable of high production rates sufficiently fast to accommodate the output of a conventional float glass production line so that monolithic glass reflectors can be produced as quickly as a float glass production can make sheets of float glass to be used in the process.

Angel, Roger P (Tucson, AZ); Olbert, Blain H (Tucson, AZ)

2011-12-27T23:59:59.000Z

142

Development and Testing of Abrasion Resistant Hard Coats For Polymer Film Reflectors: Preprint  

SciTech Connect (OSTI)

Reflective polymer film technology can significantly reduce the cost of solar reflectors and installed Concentrated Solar Power (CSP) plants by both reduced material cost and lower weight. One challenge of polymer reflectors in the CSP environment pertains to contact cleaning methods typically used with glass mirrors. Such contact cleaning methods can scratch the surface of polymer reflectors and thereby reduce specular reflectance. ReflecTech, Inc. (a subsidiary of SkyFuel, Inc.) and the National Renewable Energy Laboratory (NREL) initiated a cooperative research and development agreement (CRADA) to devise and develop an abrasion resistant coating (ARC) suitable for deposition onto polymer based mirror film. A number of candidate ARC products were identified as candidate formulations. Industrial collaborators prepared samples having their ARCs deposited onto ReflecTech Mirror Film pre-laminated to aluminum sheet substrates. Samples were provided for evaluation and subjected to baseline (unweathered) and accelerated exposure conditions and subsequently characterized for abrasion resistance and adhesion. An advanced ARC product has been identified that exhibits outstanding initial abrasion resistance and adhesion to ReflecTech Mirror Film. These properties were also retained after exposure to the various accelerated stress conditions. This material has been successfully manufactured as a 1.5 m wide roll-to-roll construction in a production environment.

Jorgensen, G.; Gee, R.; DiGrazia, M.

2010-10-01T23:59:59.000Z

143

Chemical Effect of Dry and Wet Cleaning of the Ru Protective Layer of the Extreme ultraviolet (EUV) Lithography Reflector  

SciTech Connect (OSTI)

The authors report the chemical influence of cleaning of the Ru capping layer on the extreme ultraviolet (EUV) reflector surface. The cleaning of EUV reflector to remove the contamination particles has two requirements: to prevent corrosion and etching of the reflector surface and to maintain the reflectivity functionality of the reflector after the corrosive cleaning processes. Two main approaches for EUV reflector cleaning, wet chemical treatments [sulfuric acid and hydrogen peroxide mixture (SPM), ozonated water, and ozonated hydrogen peroxide] and dry cleaning (oxygen plasma and UV/ozone treatment), were tested. The changes in surface morphology and roughness were characterized using scanning electron microscopy and atomic force microscopy, while the surface etching and change of oxidation states were probed with x-ray photoelectron spectroscopy. Significant surface oxidation of the Ru capping layer was observed after oxygen plasma and UV/ozone treatment, while the oxidation is unnoticeable after SPM treatment. Based on these surface studies, the authors found that SPM treatment exhibits the minimal corrosive interactions with Ru capping layer. They address the molecular mechanism of corrosive gas and liquid-phase chemical interaction with the surface of Ru capping layer on the EUV reflector.

Belau, Leonid; Park, Jeong Y.; Liang, Ted; Seo, Hyungtak; Somorjai, Gabor A.

2009-04-10T23:59:59.000Z

144

Low temperature synthesis of nanocrystalline magnesium aluminate with high surface area by surfactant assisted precipitation method: Effect of preparation conditions  

SciTech Connect (OSTI)

Highlights: ? MgAl{sub 2}O{sub 4} showed a high surface area and nanocrystalline structure. ? Addition of polymeric surfactant affected the structural properties of MgAl{sub 2}O{sub 4}. ? MgAl{sub 2}O{sub 4} prepared with surfactant showed a hollow cylindrical shape. -- Abstract: A surfactant assisted co-precipitation method was employed for the low temperature synthesis of magnesium aluminate spinel with nanocrystalline size and high specific surface area. Pluronic P123 triblock copolymer and ammonia solution were used as surfactant and precipitation agent, respectively. The prepared samples were characterized by thermal gravimetric and differential thermal gravimetric analyses (TG/DTG), X-ray diffraction (XRD), N{sub 2} adsorption (BET) and transmission electron microscopy (TEM) techniques. The effects of several process parameters such as refluxing temperature, refluxing time, pH, P123 to metals mole ratio (P123/metals) and calcination temperature on the structural properties of the samples were investigated. The obtained results showed that, among the process parameters pH and refluxing temperature have a significant effect on the structural properties of samples. The results revealed that increase in pH from 9.5 to 11 and refluxing temperature from 40 °C to 80 °C increased the specific surface area of prepared samples in the range of 157–188 m{sup 2} g{sup ?1} and 162–184 m{sup 2} g{sup ?1}, respectively. The XRD analysis showed the single-phase MgAl{sub 2}O{sub 4} was formed at 700 °C.

Mosayebi, Zeinab [Institute of Nanoscience and Nanotechnology, University of Kashan, Kashan (Iran, Islamic Republic of)] [Institute of Nanoscience and Nanotechnology, University of Kashan, Kashan (Iran, Islamic Republic of); Rezaei, Mehran, E-mail: rezaei@kashanu.ac.ir [Institute of Nanoscience and Nanotechnology, University of Kashan, Kashan (Iran, Islamic Republic of) [Institute of Nanoscience and Nanotechnology, University of Kashan, Kashan (Iran, Islamic Republic of); Catalyst and Advanced Materials Research Laboratory, Chemical Engineering Department, Faculty of Engineering, University of Kashan, Kashan (Iran, Islamic Republic of); Hadian, Narges [Institute of Nanoscience and Nanotechnology, University of Kashan, Kashan (Iran, Islamic Republic of)] [Institute of Nanoscience and Nanotechnology, University of Kashan, Kashan (Iran, Islamic Republic of); Kordshuli, Fazlollah Zareie [Shiraz Petrochemical Co., Shiraz (Iran, Islamic Republic of)] [Shiraz Petrochemical Co., Shiraz (Iran, Islamic Republic of); Meshkani, Fereshteh [Catalyst and Advanced Materials Research Laboratory, Chemical Engineering Department, Faculty of Engineering, University of Kashan, Kashan (Iran, Islamic Republic of)] [Catalyst and Advanced Materials Research Laboratory, Chemical Engineering Department, Faculty of Engineering, University of Kashan, Kashan (Iran, Islamic Republic of)

2012-09-15T23:59:59.000Z

145

Midtemperature Solar Systems Test Facility predictions for thermal performance of the Suntec solar collector with heat-formed glass reflector surface  

SciTech Connect (OSTI)

Thermal performance predictions are presented for the Suntec solar collector, with heat-formed glass reflector surface, for three output temperatures at five cities in the United States.

Harrison, T.D.

1980-11-01T23:59:59.000Z

146

Seismic wave propagation in thinly-layered media with steep reflectors  

SciTech Connect (OSTI)

Seismic waves reflected from steep reflectors in the earth`s subsurface spend a significant amount of time travelling more or less horizontally. Therefore, accurate imaging of steep geologic structure requires knowledge of the behavior of these horizontally propagating waves. In particular, the effect of tunneling on seismic waves propagating in thinly-layered media must be understood. I describe a method for modeling seismic waves traveling in thinly-layered media. This method, a frequency-wavenumber finite-difference scheme coupled with the Born approximation, is useful in studying seismic waves reflected from steep geologic structures.

Deng, H.L.

1992-05-01T23:59:59.000Z

147

Seismic wave propagation in thinly-layered media with steep reflectors  

SciTech Connect (OSTI)

Seismic waves reflected from steep reflectors in the earth's subsurface spend a significant amount of time travelling more or less horizontally. Therefore, accurate imaging of steep geologic structure requires knowledge of the behavior of these horizontally propagating waves. In particular, the effect of tunneling on seismic waves propagating in thinly-layered media must be understood. I describe a method for modeling seismic waves traveling in thinly-layered media. This method, a frequency-wavenumber finite-difference scheme coupled with the Born approximation, is useful in studying seismic waves reflected from steep geologic structures.

Deng, H.L.

1992-05-01T23:59:59.000Z

148

Lamp system with conditioned water coolant and diffuse reflector of polytetrafluorethylene(PTFE)  

DOE Patents [OSTI]

A lamp system with a very soft high-intensity output is provided over a large area by water cooling a long-arc lamp inside a diffuse reflector of polytetrafluorethylene (PTFE) and titanium dioxide (TiO.sub.2) white pigment. The water is kept clean and pure by a one micron particulate filter and an activated charcoal/ultraviolet irradiation system that circulates and de-ionizes and biologically sterilizes the coolant water at all times, even when the long-arc lamp is off.

Zapata, Luis E. (Livermore, CA); Hackel, Lloyd (Livermore, CA)

1999-01-01T23:59:59.000Z

149

Rise Time of the Simulated VERITAS 12 m Davies-Cotton Reflector  

SciTech Connect (OSTI)

The Very Energetic Radiation Imaging Telescope Array System (VERITAS) will utilise Imaging Atmospheric Cherenkov Telescopes (IACTs) based on a Davies-Cotton design with f-number f/1.0 to detect cosmic gamma-rays. Unlike a parabolic reflector, light from the Davies-Cotton does not arrive isochronously at the camera. Here the effect of the telescope geometry on signal rise-time is examined. An almost square-pulse arrival time profile with a rise time of 1.7 ns is found analytically and confirmed through simulation.

White, Richard J. [School of Physics and Astronomy, University of Leeds (United Kingdom)

2005-02-21T23:59:59.000Z

150

Project Assessment & Reporting System (PARS II) Release Notes...  

Energy Savers [EERE]

rows, captions and labels are differentiated by both color and rowcolumn shading. Page 4 PARS II - Enhancements BudgetFunding Screen (continued) - Profile descriptions have...

151

Configuring Workstations for use with the PARS II System  

Broader source: Energy.gov [DOE]

This file provides the users with instructions on how to configure the workstations to work with the Department's Project Assessment Reporting System (PARS II)

152

PARS II Training | Department of Energy  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:Year in3.pdfEnergyDepartment ofOil's Impact on OurSemprius ConfidentialandEnergySitethePARS

153

PAR and Supply Distribution System The PAR Program is administered by Materials Logistics (Central Distribution)  

E-Print Network [OSTI]

Logistics (Central Distribution) Services, a division of Materials Management. · The PAR Program is focused Administration: 1. See attached exhibit Models, 1-3 2. See Related Materials Management Forms 3. Weekly action group meeting(s) established to continue the work and ensuring good supply chain/materials management

Oliver, Douglas L.

154

NOMBRE DE RAYONS 03B1 MIS PAR UNE PRPARATION DE DPOT ACTIF DU THORIUM MESURE PAR SON RAYONNEMENT PNTRANT  

E-Print Network [OSTI]

NOMBRE DE RAYONS 03B1 �MIS PAR UNE PR�PARATION DE D�POT ACTIF DU THORIUM MESUR�E PAR SON cm de Pb. Résultats. 1. But du travail. - Le Radiothorium, le Thorium X et le dépôt actif du Thorium sont généralement dosés par leur rayonnement y provenant de Thorium (C + Cfl). A cet effet, à l

Paris-Sud XI, Université de

155

La gestion des ports par une entit publique: aspects europens et environnementaux La gestion des ports par une entit publique  

E-Print Network [OSTI]

La gestion des ports par une entité publique: aspects européens et environnementaux « La gestion des ports par une entité publique: aspects européens et environnementaux » Thèse pour le Doctorat en,version1-25Apr2014 #12;La gestion des ports par une entité publique: aspects européens et environnementaux

Paris-Sud XI, Université de

156

See-through amorphous silicon solar cells with selectively transparent and conducting photonic crystal back reflectors for building integrated photovoltaics  

SciTech Connect (OSTI)

Thin semi-transparent hydrogenated amorphous silicon (a-Si:H) solar cells with selectively transparent and conducting photonic crystal (STCPC) back-reflectors are demonstrated. Short circuit current density of a 135?nm thick a-Si:H cell with a given STCPC back-reflector is enhanced by as much as 23% in comparison to a reference cell with an ITO film functioning as its rear contact. Concurrently, solar irradiance of 295?W/m{sup 2} and illuminance of 3480 lux are transmitted through the cell with a given STCPC back reflector under AM1.5 Global tilt illumination, indicating its utility as a source of space heating and lighting, respectively, in building integrated photovoltaic applications.

Yang, Yang [The Edward S. Rogers Sr. Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Room GB254B, Toronto, Ontario M5S 3G4 (Canada)] [The Edward S. Rogers Sr. Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Room GB254B, Toronto, Ontario M5S 3G4 (Canada); O’Brien, Paul G. [Department of Materials Science and Engineering, University of Toronto, 184 College Street, Room 140, Toronto, Ontario M5S 3E4 (Canada) [Department of Materials Science and Engineering, University of Toronto, 184 College Street, Room 140, Toronto, Ontario M5S 3E4 (Canada); Materials Chemistry Research Group, Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario M5S 3H6 (Canada); Ozin, Geoffrey A., E-mail: gozin@chem.utoronto.ca, E-mail: kherani@ecf.utoronto.ca [Materials Chemistry Research Group, Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario M5S 3H6 (Canada); Kherani, Nazir P., E-mail: gozin@chem.utoronto.ca, E-mail: kherani@ecf.utoronto.ca [The Edward S. Rogers Sr. Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Room GB254B, Toronto, Ontario M5S 3G4 (Canada); Department of Materials Science and Engineering, University of Toronto, 184 College Street, Room 140, Toronto, Ontario M5S 3E4 (Canada)

2013-11-25T23:59:59.000Z

157

MHD compressor---expander conversion system integrated with GCR inside a deployable reflector  

SciTech Connect (OSTI)

This work originates from the proposal MHD Compressor-Expander Conversion System Integrated with a GCR Inside a Deployable Reflector''. The proposal concerned an innovative concept of nuclear, closed-cycle MHD converter for power generation on space-based systems in the multi-megawatt range. The basic element of this converter is the Power Conversion Unit (PCU) consisting of a gas core reactor directly coupled to an MHD expansion channel. Integrated with the PCU, a deployable reflector provides reactivity control. The working fluid could be either uranium hexafluoride or a mixture of uranium hexafluoride and helium, added to enhance the heat transfer properties. The original Statement of Work, which concerned the whole conversion system, was subsequently redirected and focused on the basic mechanisms of neutronics, reactivity control, ionization and electrical conductivity in the PCU. Furthermore, the study was required to be inherently generic such that the study was required to be inherently generic such that the analysis an results can be applied to various nuclear reactor and/or MHD channel designs''.

Tuninetti, G. (Ansaldo S.p.A., Genoa (Italy). Research Div.); Botta, E.; Criscuolo, C.; Riscossa, P. (Ansaldo S.p.A., Genoa (Italy). Nuclear Div.); Giammanco, F. (Pisa Univ. (Italy). Dipt. di Fisica); Rosa-Clot, M. (Florence Univ. (Italy). Dipt. di Fisica)

1989-04-20T23:59:59.000Z

158

Multiplier, moderator, and reflector materials for lithium-vanadium fusion blankets.  

SciTech Connect (OSTI)

The self-cooled lithium-vanadium fusion blanket concept has several attractive operational and environmental features. In this concept, liquid lithium works as the tritium breeder and coolant to alleviate issues of coolant breeder compatibility and reactivity. Vanadium alloy (V-4Cr-4Ti) is used as the structural material because of its superior performance relative to other alloys for this application. However, this concept has poor attenuation characteristics and energy multiplication for the DT neutrons. An advanced self-cooled lithium-vanadium fusion blanket concept has been developed to eliminate these drawbacks while maintaining all the attractive features of the conventional concept. An electrical insulator coating for the coolant channels, spectral shifter (multiplier, and moderator) and reflector were utilized in the blanket design to enhance the blanket performance. In addition, the blanket was designed to have the capability to operate at high loading conditions of 2 MW/m{sup 2} surface heat flux and 10 MW/m{sup 2} neutron wall loading. This paper assesses the spectral shifter and the reflector materials and it defines the technological requirements of this advanced blanket concept.

Gohar, Y.; Smith, D. L.

1999-10-07T23:59:59.000Z

159

aux etats-unis par: Topics by E-print Network  

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

Sciences Websites Summary: , David Wessel, and Kathy Yelick UC Berkeley Par Lab End-of-Project Party May 30, 2013 12;BERKELEY PAR LAB Par Lab Timeline 2 Initial Meetings...

160

adp-ribose par immunoassay: Topics by E-print Network  

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

Sciences Websites Summary: , David Wessel, and Kathy Yelick UC Berkeley Par Lab End-of-Project Party May 30, 2013 12;BERKELEY PAR LAB Par Lab Timeline 2 Initial Meetings...

Note: This page contains sample records for the topic "aluminized reflector par" 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

Glossary of Screen Labels for PARS II V1 | Department of Energy  

Office of Environmental Management (EM)

Glossary of Screen Labels for PARS II V1 More Documents & Publications PARS II Standard Operating Procedure (SOP) PARSIISOP.pdf Proposed Data Elements for PARS II Web Application...

162

Commercial Cooling Par Engineering: Order (2013-CE-5312)  

Broader source: Energy.gov [DOE]

DOE ordered Commercial Cooling Par Engineering, Inc. to pay a $8,000 civil penalty after finding Commercial Cooling Par Engineering had failed to certify that certain models of walk-in cooler and freezer components comply with the applicable energy conservation standards.

163

APPLICATION DES PALIERS A GAZ AUX GYROSCOPES Par G. GOBERT,  

E-Print Network [OSTI]

43 APPLICATION DES PALIERS A GAZ AUX GYROSCOPES Par G. GOBERT, Centre d'Études Nucléaires de Saclay. Résumé. 2014 L'étude des frottements dans les paliers à lubrification par gaz permet de cons- truire un avec, au centre, une turbine à réaction. Ces rotors sont placés entre deux butées coniques métalliques

Paris-Sud XI, Université de

164

Optical and Durability Evaluation for Silvered Polymeric Mirrors and Reflectors: Cooperative Research and Development Final Report, CRADA Number, CRD-08-316  

SciTech Connect (OSTI)

3M is currently developing silvered polymeric mirror reflectors as low-cost replacements for glass mirrors in concentrating solar power (CSP) systems. This effort is focused on development of reflectors comprising both metallized polymeric mirror films based on improved versions of ECP-305+ or other durable mirror film concepts and appropriate mechanically robust substrates. The objectives for this project are to reduce the system capital and operating costs and to lower the levelized cost of energy for CSP installations. The development of mirror reflectors involves work on both full reflectors and mirror films with and without coatings. Mirror reflectors must meet rigid optical specifications in terms of radius of curvature, slope errors and specularity. Mirror films must demonstrate long-term durability and maintain high reflectivity. 3M would like to augment internal capabilities to validate product performance with methods and tools developed at NREL to address these areas.

Gray, M.

2014-08-01T23:59:59.000Z

165

A Review of the Reflector Compact Fluorescent Lights Technology Procurement Program: Conclusions and Results  

SciTech Connect (OSTI)

This report describes a project sponsored by the U.S. Department of Energy (DOE) and implemented by the Pacific Northwest National Laboratory (PNNL), from 2000 to 2007 to improve the performance of reflector type (R-lamp) compact fluorescent lamps (CFLs) and increase their availability throughout the United States by means of a technology development and procurement strategy. In 2000, at the request of the U.S. Department of Energy’s Emerging Technologies Program and its predecessors, the Pacific Northwest National Laboratory undertook a technology procurement seeking R-CFLs that were specifically designed for use in ICAT recessed can fixtures and that met other minimum performance criteria including minimum light output and size restrictions (to ensure they fit in standard residential recessed cans). The technology procurement included two phases. In Phase I, requests for proposals (RFPs) were issued in October 2002 and five manufacturers responded with 12 lamp models. Eight of these models met the minimum requirements and passed the 6-hour short-term test in a simulated ICAT environment. These eight models were subjected to long-term tests of 6,000 or more hours in a simulated ICAT environment. Three of these models passed the short- and long-term tests and were promoted through the program website (www.pnl.gov/rlamps), press releases, and fliers. To increase the number of qualifying models, a second RFP was issued in June 2005. In April 2007, DOE announced that 16 reflector CFL (R-CFL) models by four manufacturers had met all the minimum requirements of Phase 2 of the R-CFL Technology Innovation Competition. PNNL developed both the criteria and the test apparatus design for Elevated Temperature Life Testing (ETLT), which has been included by DOE in its draft ENERGY STAR specifications for the reflector category of CFLs. PNNL promoted the winning lamps through a program website, press releases, and fliers as well as through program partners. PNNL also helped engage distributors including Costco, the Home Depot, Bonneville Power Administration, and utility organizations.

Sandahl, Linda J.; Gilbride, Theresa L.; Ledbetter, Marc R.; McCullough, Jeffrey J.

2008-05-19T23:59:59.000Z

166

Design and performance of a low-cost acrylic reflector for a ~7x concentrating photovoltaic module  

E-Print Network [OSTI]

of the prototype. The final design is an asymmetric compound parabolic concentrator mounted to an encapsulated increase in power output over an encapsulated receiver with no reflector. Keywords: compound parabolic push for drastic cost reductions in the deployment of solar electricity production has renewed interest

Rollins, Andrew M.

167

Greek research reactor performance characteristics after addition of beryllium reflector and LEU fuel  

SciTech Connect (OSTI)

The GRR-1 is a 5-MW pool-type, light-water-moderated and-cooled reactor fueled with MTR-type fuel elements. Recently received Be reflector blocks will soon be added to the core to add additional reactivity until fresh LEU fuel arrives. REBUS-3 xy fuel cycle analyses, using burnup dependent cross sections, were performed to assist in fuel management decisions for the water- and Be-reflected HEU nonequilibrium cores. Cross sections generated by EPRI-CELL have been benchmarked to identical VIM Monte Carlo models. The size of the Be-reflected LEU core has been reduced to 30 elements compared to 35 for the HEU water-reflected core, and an equilibrium cycle calculation has been performed.

Deen, J.R.; Snelgrove, J.L. [Argonne National Lab., IL (United States); Papastergiou, C. [National Center for Scientific Research, Athens (Greece)

1992-12-31T23:59:59.000Z

168

Greek research reactor performance characteristics after addition of beryllium reflector and LEU fuel  

SciTech Connect (OSTI)

The GRR-1 is a 5-MW pool-type, light-water-moderated and-cooled reactor fueled with MTR-type fuel elements. Recently received Be reflector blocks will soon be added to the core to add additional reactivity until fresh LEU fuel arrives. REBUS-3 xy fuel cycle analyses, using burnup dependent cross sections, were performed to assist in fuel management decisions for the water- and Be-reflected HEU nonequilibrium cores. Cross sections generated by EPRI-CELL have been benchmarked to identical VIM Monte Carlo models. The size of the Be-reflected LEU core has been reduced to 30 elements compared to 35 for the HEU water-reflected core, and an equilibrium cycle calculation has been performed.

Deen, J.R.; Snelgrove, J.L. (Argonne National Lab., IL (United States)); Papastergiou, C. (National Center for Scientific Research, Athens (Greece))

1992-01-01T23:59:59.000Z

169

Photonic crystal membrane reflectors by magnetic field-guided metal-assisted chemical etching  

SciTech Connect (OSTI)

Metal-assisted chemical etching (MacEtch) is a simple etching method that uses metal as the catalyst for anisotropic etching of semiconductors. However, producing nano-structures using MacEtch from discrete metal patterns, in contrast to interconnected ones, has been challenging because of the difficulties in keeping the discrete metal features in close contact with the semiconductor. We report the use of magnetic field-guided MacEtch (h-MacEtch) to fabricate periodic nanohole arrays in silicon-on-insulator (SOI) wafers for high reflectance photonic crystal membrane reflectors. This study demonstrates that h-MacEtch can be used in place of conventional dry etching to produce ordered nanohole arrays for photonic devices.

Balasundaram, Karthik; Mohseni, Parsian K.; Li, Xiuling, E-mail: wzhou@uta.edu, E-mail: xiuling@illinois.edu [Micro and Nanotechnology Laboratory, Department of Electrical and Computer Engineering, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801 (United States)] [Micro and Nanotechnology Laboratory, Department of Electrical and Computer Engineering, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801 (United States); Shuai, Yi-Chen; Zhao, Deyin; Zhou, Weidong, E-mail: wzhou@uta.edu, E-mail: xiuling@illinois.edu [Department of Electrical Engineering, NanoFAB Center, University of Texas at Arlington, Arlington, Texas 76019 (United States)] [Department of Electrical Engineering, NanoFAB Center, University of Texas at Arlington, Arlington, Texas 76019 (United States)

2013-11-18T23:59:59.000Z

170

Enhanced absorption of monolayer MoS{sub 2} with resonant back reflector  

SciTech Connect (OSTI)

The optical absorption of monolayer MoS{sub 2} on top of one-dimensional photonic crystal (1DPC) or metal films with spacer layers is theoretically investigated by extracting the permittivity of monolayer MoS{sub 2} from existing experimental results [K. F. Mak et al., Phys. Rev. Lett. 105, 136805 (2010)]. The absorption of graphene with 1DPC across a broad spectral range is substantially enhanced because of the photonic localization at the optical micro-cavity on top of the 1DPC or metal films. The absorption of monolayer MoS{sub 2} can be tuned by varying either the distance between the monolayer MoS{sub 2} and the back reflector or the thickness of the cover layers.

Liu, Jiang-Tao, E-mail: jtliu@semi.ac.cn; Liu, Nian-Hua [Nanoscale Science and Technology Laboratory, Institute for Advanced Study, Nanchang University, Nanchang 330031 (China); Department of Physics, Nanchang University, Nanchang 330031 (China); Wang, Tong-Biao [Department of Physics, Nanchang University, Nanchang 330031 (China); Li, Xiao-Jing [College of Physics and Energy, Fujian Normal University, Fuzhou 350007 (China)

2014-05-21T23:59:59.000Z

171

Reactivity Accountability Attributed to Reflector Poisons in the High Flux Isotope Reactor  

SciTech Connect (OSTI)

The objective of this study is to develop a methodology to predict the reactivity impact as a function of outage time between cycles of 3He, 6Li, and other poisons in the High Flux Isotope Reactor s (HFIR) beryllium reflector. The reactivity worth at startup of the HFIR has been incorrectly predicted in the past after the reactor has been shut-down for long periods of time. The incorrect prediction was postulated to be due to the erroneous calculation of 3He buildup in the beryllium reflector. It is necessary to develop a better estimate of the start-of-cycle symmetric critical control element positions since if the estimated and actual symmetrical critical control element positions differ by more than $1.55 in reactivity (approximately one-half inch in control element startup position), HFIR is to be shutdown and a technical evaluation is performed to resolve the discrepancy prior to restart. 3He is generated and depleted during operation, but during an outage, the depletion of 3He ceases because it is a stable isotope. 3He is born from the radioactive decay of tritium, and thus the concentration of 3He increases during shutdown. SCALE, specifically the TRITON and CSAS5 control modules including the KENO V.A, COUPLE, and ORIGEN functional modules were utilized in this study. An equation relating the down time (td) to the change in symmetric control element position was generated and validated against measurements for approximately 40 HFIR operating cycles. The newly-derived correlation was shown to improve accuracy of predictions for long periods of down time.

Chandler, David [ORNL; Maldonado, G Ivan [ORNL; Primm, Trent [ORNL

2009-12-01T23:59:59.000Z

172

Criticality Safety Analysis on the Mixed Be, Nat-U, and C (Graphite) Reflectors in 55-Gallon Waste Drums and Their Equivalents for HWM Applications  

SciTech Connect (OSTI)

The objective of this analysis is to develop and establish the technical basis on the criticality safety controls for the storage of mixed beryllium (Be), natural uranium (Nat-U), and carbon (C)/graphite reflectors in 55-gallon waste containers and/or their equivalents in Hazardous Waste Management (HWM) facilities. Based on the criticality safety limits and controls outlined in Section 3.0, the operations involving the use of mixed-reflector drums satisfy the double-contingency principle as required by DOE Order 420.1 and are therefore criticality safe. The mixed-reflector mass limit is 120 grams for each 55-gallon drum or its equivalent. a reflector waiver of 50 grams is allowed for Be, Nat-U, or C/graphite combined. The waived reflectors may be excluded from the reflector mass calculations when determining if a drum is compliant. The mixed-reflector drums are allowed to mix with the typical 55-gallon one-reflector drums with a Pu mass limit of 120 grams. The fissile mass limit for the mixed-reflector container is 65 grams of Pu equivalent each. The corresponding reflector mass limits are 300 grams of Be, and/or 100 kilograms of Nat-U, and/or 110 kilograms of C/graphite for each container. All other unaffected control parameters for the one-reflector containers remain in effect for the mixed-reflector drums. For instance, Superior moderators, such as TrimSol, Superla white mineral oil No. 9, paraffin, and polyethylene, are allowed in unlimited quantities. Hydrogenous materials with a hydrogen density greater than 0.133 gram/cc are not allowed. Also, an isolation separation of no less than 76.2 cm (30-inch) is required between a mixed array and any other array. Waste containers in the action of being transported are exempted from this 76.2-cm (30-inch) separation requirement. All deviations from the CS controls and mass limits listed in Section 3.0 will require individual criticality safety analyses on a case-by-case basis for each of them to confirm their criticality safety prior to their deployment and implementation.

Chou, P

2011-12-14T23:59:59.000Z

173

Commercial Cooling Par Engineering: Proposed Penalty (2013-CE-5312)  

Broader source: Energy.gov [DOE]

DOE alleged in a Notice of Proposed Civil Penalty that Commercial Cooling Par Engineering failed to certify walk-in cooler or freezer components as compliant with the energy conservation standards.

174

The L Prize PAR 38 Competition: A New Start  

Broader source: Energy.gov [DOE]

This March 27, 2012 webcast presented information on the newly reopened L Prize® PAR 38 competition. Moderated by James Brodrick, DOE Lighting Program Manager, the webcast featured an overview of...

175

ADVISORY ALERT: Dekker, Ltd. Digital Signature - PARS II...  

Energy Savers [EERE]

so that you may continue working with PARS II reports. Please note: Once you complete the process of accepting the Dekker, LTd. digital signature, this warning will not re-appear....

176

Microsoft Word - Configuring Workstations for use with the PARS...  

Energy Savers [EERE]

use with the PARS II System.V3.0.doc More Documents & Publications Idaho Operations AMWTP Fact Sheet Heating Ventilation and Air Conditioning Efficiency CERTIFIED REALTY SPECIALIST...

177

INSTITUT NATIONAL POLYTECHNIQUE DE GRENOBLE attribu par la bibliothque  

E-Print Network [OSTI]

14 novembre 2006 Titre : Détection d'objets enfouis sur le fond marin par ondes sismo-acoustiques de'objets enfouis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Utilisation des ondes sismo-acoustiques de surface . . . . . . . . . . . . . . . . . 2 SONAR sismo

Paris-Sud XI, Université de

178

PARS II Process Document – Over Target Baseline (OTB) Reporting  

Broader source: Energy.gov [DOE]

This document details the process by which contractors should conduct Over Target Baseline (OTB) reporting into PARS II.  It applies to projects on which Over Target Baseline (OTB) was approved and...

179

PARS II Process Document – Over Target Baseline (OTB) Reporting  

Broader source: Energy.gov [DOE]

This document details the process by which contractors should conduct Over Target Baseline (OTB) reporting into PARS II. It applies to projects on which Over Target Baseline (OTB) was approved and...

180

Contractor-specific Documentation & Information in PARS II  

Broader source: Energy.gov [DOE]

DOE Office of Acquisition and Project Management established guidelines for documentation that should be available within PARS II through contractor-specific records that are not linked to any...

Note: This page contains sample records for the topic "aluminized reflector par" 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

MMOIRES ORIGINAUX Ionisation par le phosphore et phosphorescence  

E-Print Network [OSTI]

M�MOIRES ORIGINAUX Ionisation par le phosphore et phosphorescence Par Léon et Eugène BLOCH [Faculté phosphorescence avait hesoin d'être précisée. Si en effet la phosphorescence est duc à la combustion du phosphore, elle doit être plus vive dans l'oxygène quc dans l'air. Or dans l'oxygène pur, le phosphore cesse d

Boyer, Edmond

182

Reflector Technology Development and System Design for Concentrating Solar Power Technologies  

SciTech Connect (OSTI)

Alcoa began this program in March of 2008 with the goal of developing and validating an advanced CSP trough design to lower the levelized cost of energy (LCOE) as compared to existing glass based, space-frame trough technology. In addition to showing a pathway to a significant LCOE reduction, Alcoa also desired to create US jobs to support the emerging CSP industry. Alcoa's objective during Phase I: Concept Feasibility was to provide the DOE with a design approach that demonstrates significant overall system cost savings without sacrificing performance. Phase I consisted of two major tasks; reflector surface development and system concept development. Two specific reflective surface technologies were investigated, silver metallized lamination, and thin film deposition both applied on an aluminum substrate. Alcoa prepared samples; performed test validation internally; and provided samples to the NREL for full-spectrum reflectivity measurements. The final objective was to report reflectivity at t = 0 and the latest durability results as of the completion of Phase 1. The target criteria for reflectance and durability were as follows: (1) initial (t = 0), hemispherical reflectance >93%, (2) initial spectral reflectance >90% for 25-mrad reading and >87% for 7-mrad reading, and (3) predicted 20 year durability of less than 5% optical performance drop. While the results of the reflective development activities were promising, Alcoa was unable to down-select on a reflective technology that met the target criteria. Given the progress and potential of both silver film and thin film technologies, Alcoa continued reflector surface development activities in Phase II. The Phase I concept development activities began with acquiring baseline CSP system information from both CSP Services and the DOE. This information was used as the basis to develop conceptual designs through ideation sessions. The concepts were evaluated based on estimated cost and high-level structural performance. The target criteria for the concept development was to achieve a solar field cost savings of 25%-50% thereby meeting or exceeding the DOE solar field cost savings target of $350/m2. After evaluating various structural design approaches, Alcoa down-selected to a monocoque, dubbed Wing Box, design that utilizes the reflective surface as a structural, load carrying member. The cost and performance potential of the Wing Box concept was developed via initial finite element analysis (FEA) and cost modeling. The structural members were sized through material utilization modeling when subjected to representative loading conditions including wind loading. Cost modeling was utilized to refine potential manufacturing techniques that could be employed to manufacture the structural members. Alcoa concluded that an aluminum intensive collector design can achieve significant cost savings without sacrificing performance. Based on the cost saving potential of this Concept Feasibility study, Alcoa recommended further validation of this CSP approach through the execution of Phase II: Design and Prototype Development. Alcoa Phase II objective was to provide the DOE with a validated CSP trough design that demonstrates significant overall system cost savings without sacrificing performance. Phase II consisted of three major tasks; Detail System Design, Prototype Build, and System Validation. Additionally, the reflector surface development that began in Phase I was continued in Phase II. After further development work, Alcoa was unable to develop a reflective technology that demonstrated significant performance or cost benefits compared to commercially available CSP reflective products. After considering other commercially available reflective surfaces, Alcoa selected Alano's MIRO-SUN product for use on the full scale prototype. Although MIRO-SUN has a lower specular reflectivity compared to other options, its durability in terms of handling, cleaning, and long-term reflectivity was deemed the most important attribute to successfully validate Alcoa's advanced trough archi

Adam Schaut

2011-12-30T23:59:59.000Z

183

Midtemperature Solar Systems Test Facility predictions for thermal performance of the Solar Kinetics T-700 solar collector with FEK 244 reflector surface  

SciTech Connect (OSTI)

Thermal performance predictions are presented for the Solar Kinetics T-700 solar collector, with FEK 244 reflector surface, for three output temperatures at five cities in the United States.

Harrison, T.D.

1980-11-01T23:59:59.000Z

184

Midtemperature solar systems test facility predictions for thermal performance based on test data. Toltec two-axis tracking solar collector with 3M acrylic polyester film reflector surface  

SciTech Connect (OSTI)

Thermal performance predictions based on test data are presented for the Toltec solar collector, with acrylic film reflector surface, for three output temperatures at five cities in the United States.

Harrison, T.D.

1981-06-01T23:59:59.000Z

185

Midtemperature solar systems test facility predictions for thermal performance based on test data. Polisolar Model POL solar collector with glass reflector surface  

SciTech Connect (OSTI)

Thermal performance predictions based on test data are presented for the Polisolar Model POL solar collector, with glass reflector surfaces, for three output temperatures at five cities in the United States.

Harrison, T.D.

1981-05-01T23:59:59.000Z

186

Effect of antimony nano-scale surface-structures on a GaSb/AlAsSb distributed Bragg reflector  

SciTech Connect (OSTI)

Effects of antimony crystallization on the surface of GaSb during low temperature molecular beam epitaxy growth are investigated. The geometry of these structures is studied via transmission electron and atomic force microscopies, which show the surface metal forms triangular-shaped, elongated nano-wires with a structured orientation composed entirely of crystalline antimony. By depositing antimony on a GaSb/AlAsSb distributed Bragg reflector, the field is localized within the antimony layer. Polarization dependent transmission measurements are carried out on these nano-structures deposited on a GaSb/AlAsSb distributed Bragg reflector. It is shown that the antimony-based structures at the surface favor transmission of light polarized perpendicular to the wires.

Husaini, S.; Shima, D.; Ahirwar, P.; Rotter, T. J.; Hains, C. P.; Dang, T.; Bedford, R. G.; Balakrishnan, G. [Air Force Research Laboratory, Sensors Directorate, Wright-Patterson AFB, Dayton, OH 45433 (United States)] [Air Force Research Laboratory, Sensors Directorate, Wright-Patterson AFB, Dayton, OH 45433 (United States)

2013-02-11T23:59:59.000Z

187

Impact of strongly absorbing experiments in the HFIR reflector on control plate strength  

SciTech Connect (OSTI)

Several improvements in the experimental irradiation facilities of the High-Flux Isotope Reactor (HFIR) were incorporated at the time of its restart in 1989 in order to enhance its capabilities for materials irradiations. One improvement that is of particular interest in regard to its impact on the reactor`s nuclear characteristics is the increase in number and size of the larger irradiation holes in the HFIR`s removable beryllium reflector (RB). A principal use for these larger-diameter holes has been to accommodate spectrally tailored materials irradiations where fast neutron reactions are of principal interest and the suppression of thermal neutron reactions is important to the interpretation of the results. Such experiments typically require thermal neutron-absorbing shrouds around the experimental capsules. Reactor operation with strong thermal neutron absorbers directly outboard of the control elements has significant impact on core power distribution, cycle length, control rod worths, and on other experimental facilities nearby. This paper specifically discusses the impacts on control rod strength due to the strong localized thermal neutron absorbers.

Rothrock, R.B. [Oak Ridge National Lab., TN (United States)

1998-09-01T23:59:59.000Z

188

Monte Carlo analysis of a monolithic interconnected module with a back surface reflector  

SciTech Connect (OSTI)

Recently, the photon Monte Carlo code, RACER-X, was modified to include wave-length dependent absorption coefficients and indices of refraction. This work was done in an effort to increase the code`s capabilities to be more applicable to a wider range of problems. These new features make RACER-X useful for analyzing devices like monolithic interconnected modules (MIMs) which have etched surface features and incorporates a back surface reflector (BSR) for spectral control. A series of calculations were performed on various MIM structures to determine the impact that surface features and component reflectivities have on spectral utilization. The traditional concern of cavity photonics is replaced with intra-cell photonics in the MIM design. Like the cavity photonic problems previously discussed, small changes in optical properties and/or geometry can lead to large changes in spectral utilization. The calculations show that seemingly innocuous surface features (e.g., trenches and grid lines) can significantly reduce the spectral utilization due to the non-normal incident photon flux. Photons that enter the device through a trench edge are refracted onto a trajectory where they will not escape. This leads to a reduction in the number of reflected below bandgap photons that return to the radiator and reduce the spectral utilization. In addition, trenches expose a lateral conduction layer in this particular series of calculations which increase the absorption of above bandgap photons in inactive material.

Ballinger, C.T.; Charache, G.W. [Lockheed Martin Corp., Schenectady, NY (United States); Murray, C.S. [Bettis Atomic Power Lab., West Mifflin, PA (United States)

1998-10-01T23:59:59.000Z

189

Non-astigmatic imaging with matched pairs of spherically bent reflectors  

DOE Patents [OSTI]

Arrangements for the point-to-point imaging of a broad spectrum of electromagnetic radiation and ultrasound at large angles of incidence employ matched pairs of spherically bent reflectors to eliminate astigmatic imaging errors. Matched pairs of spherically bent crystals or spherically bent multi-layers are used for X-rays and EUV radiation; and matched pairs of spherically bent mirrors that are appropriate for the type of radiation are used with microwaves, infrared and visible light, or ultrasound. The arrangements encompass the two cases, where the Bragg angle--the complement to the angle of incidence in optics--is between 45.degree. and 90.degree. on both crystals/mirrors or between 0.degree. and 45.degree. on the first crystal/mirror and between 45.degree. and 90.degree. on the second crystal/mirror, where the angles of convergence and divergence are equal. For x-rays and EUV radiation, also the Bragg condition is satisfied on both spherically bent crystals/multi-layers.

Bitter, Manfred Ludwig (Princeton, NJ); Hill, Kenneth Wayne (Plainsboro, NJ); Scott, Steven Douglas (Wellesley, MA); Feder, Russell (Newton, PA); Ko, Jinseok (Cambridge, MA); Rice, John E. (N. Billerica, MA); Ince-Cushman, Alexander Charles (New York, NY); Jones, Frank (Manalapan, NJ)

2012-07-10T23:59:59.000Z

190

Feasibility of microwave-produced Bragg reflector: Examined by the chamber experiment  

SciTech Connect (OSTI)

A set of parallel plasma layers is generated by two intersecting microwave pulses in a chamber containing dry air at a pressure comparable to the upper atmosphere. The dependencies of breakdown conditions on the pressure and pulse length are examined. The results are shown to be consistent with the appearance of tad erosion of microwave pulse caused by air breakdown. A Bragg scattering experiment, using the plasma layers as a Bragg reflector is then performed. Both time domain and frequency domain measurements of wave scattering are conducted. ne experiment results are found to agree very well with the theory. Moreover, the time domain measurement of wave scattering provides an unambiguous way for determining the temporal evolution of electron density during the first IMP period. A Langmuir double probe is also used to determine the decay rate of electron density during a later time interval (I ms to 1.1 ms). The propagation of high power microwave pulses through the air is also studied experimentally. The mechanisms responsible for two different degree of tail erosion have been identified. The optimum amplitude of an 1. 1us pulse for maximum energy transfer through the air has been determined.

Kuo, S.P.; Zhang, Y.S.

1990-10-01T23:59:59.000Z

191

Searching for optimal mitigation geometries for laser-resistant multilayer high-reflector coatings  

SciTech Connect (OSTI)

Growing laser damage sites on multilayer high-reflector coatings can limit mirror performance. One of the strategies to improve laser damage resistance is to replace the growing damage sites with predesigned benign mitigation structures. By mitigating the weakest site on the optic, the large-aperture mirror will have a laser resistance comparable to the intrinsic value of the multilayer coating. To determine the optimal mitigation geometry, the finite-difference time-domain method was used to quantify the electric-field intensification within the multilayer, at the presence of different conical pits. We find that the field intensification induced by the mitigation pit is strongly dependent on the polarization and the angle of incidence (AOI) of the incoming wave. Therefore, the optimal mitigation conical pit geometry is application specific. Furthermore, our simulation also illustrates an alternative means to achieve an optimal mitigation structure by matching the cone angle of the structure with the AOI of the incoming wave, except for the p-polarized wave at a range of incident angles between 30 deg. and 45 deg.

Qiu, S. Roger; Wolfe, Justin E.; Monterrosa, Anthony M.; Feit, Michael D.; Pistor, Thomas V.; Stolz, Christopher J.

2011-03-20T23:59:59.000Z

192

Graphite and Beryllium Reflector Critical Assemblies of UO2 (Benchmark Experiments 2 and 3)  

SciTech Connect (OSTI)

INTRODUCTION A series of experiments was carried out in 1962-65 at the Oak Ridge National Laboratory Critical Experiments Facility (ORCEF) for use in space reactor research programs. A core containing 93.2 wt% enriched UO2 fuel rods was used in these experiments. The first part of the experimental series consisted of 252 tightly-packed fuel rods (1.27-cm triangular pitch) with graphite reflectors [1], the second part used 252 graphite-reflected fuel rods organized in a 1.506-cm triangular-pitch array [2], and the final part of the experimental series consisted of 253 beryllium-reflected fuel rods in a 1.506-cm-triangular-pitch configuration and in a 7-tube-cluster configuration [3]. Fission rate distribution and cadmium ratio measurements were taken for all three parts of the experimental series. Reactivity coefficient measurements were taken for various materials placed in the beryllium reflected core. All three experiments in the series have been evaluated for inclusion in the International Reactor Physics Experiment Evaluation Project (IRPhEP) [4] and the International Criticality Safety Benchmark Evaluation Project (ICSBEP) Handbooks, [5]. The evaluation of the first experiment in the series was discussed at the 2011 ANS Winter meeting [6]. The evaluations of the second and third experiments are discussed below. These experiments are of interest as benchmarks because they support the validation of compact reactor designs with similar characteristics to the design parameters for a space nuclear fission surface power systems [7].

Margaret A. Marshall; John D. Bess

2012-11-01T23:59:59.000Z

193

E-Print Network 3.0 - analyse par chromatographie Sample Search...  

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

search results for: analyse par chromatographie Page: << < 1 2 3 4 5 > >> 1 Nicholas ARMSTRONG 2 Jardins de Saint Jouanne Summary: changeuses d'ions. Analyses des ions par...

194

E-Print Network 3.0 - affectees par le Sample Search Results  

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

2005. Page n1. Feuille de TP n Summary: dans un fichier, dont le nom par defaut est matlab.mat, le contenu de certaines variables dont vous... Matlab, comme par exemple mean,...

195

DESCRIPTION PAR L'OPRATEUR DENSIT DU MOUVEMENT STATISTIQUE DE L'EXCITON LECTRONIQUE  

E-Print Network [OSTI]

excitations electro- niques elementaires de l'agrégat. Le probleme est le suivant : dans 1'hypothese ou Fon sait (a I'aide d'un piege energetique, ou par interference d'excitations optiques ou par excitation

Paris-Sud XI, Université de

196

N d'ordre : 2362009 Anne 2009 Dlivre par  

E-Print Network [OSTI]

RECOUVREMENT DES CAPACIT�S MOTRICES - FORCE MUSCULAIRE ET IMAGERIE MOTRICE ­ Directeur de Thèse : M. GUILLOT Laboratoire de la Performance Motrice, Mentale et du Matériel, dirigé par le Professeur Christian Collet. J

Paris-Sud XI, Université de

197

Par Sophie Rodrigue Pour Gabriel Blouin-Demers  

E-Print Network [OSTI]

dans le sol de l'épandange de fertilisants phosphatés · �valuer la contamination radioactive de l · Contamination radioactive potentielle de la chaîne alimentaire et de l'eau souterraine · RecommendationsPar Sophie Rodrigue EVS4904 Pour Gabriel Blouin-Demers http://www.bccdc.org/images/site/rps/radioactivity

Blouin-Demers, Gabriel

198

DTECTEUR DE CONTAMINATION RADIOACTIVE Par M. BRIRE et J. WEILL,  

E-Print Network [OSTI]

623. D�TECTEUR DE CONTAMINATION RADIOACTIVE Par M. BRI�RE et J. WEILL, Division des Constructions rapidement sur leurs mains, chaussures et vêtements toute trace de contamination. Le principe utilisé permet'utilisation. LE JOURNAL DE PHYSIQUE ET LE RADIUM. TOME 14, NOVEMBRE 1953, , Le détecteur de contamination

Paris-Sud XI, Université de

199

SUR UN SILICATE DE CADMIUM LUMINESCENT Par A. LEVIALDI et V. LUZZATI.  

E-Print Network [OSTI]

SUR UN SILICATE DE CADMIUM LUMINESCENT Par A. LEVIALDI et V. LUZZATI. Sommaire. - �tude de quelques propriétés d'un silicate de cadmium (1) luminescent. Leur interpré- tation par la théorie des trappes de silicate de cadmium par des radiations ultra- violettes de longueur d'onde voisine de ), = 2537 A

Boyer, Edmond

200

1 5-9.2002 . We report the core and reflector design parameters of reactor PIK needed for neutronic calculations.  

E-Print Network [OSTI]

PIK, needed for the reactor neutronic calculation. All up-to-date design modifications are taken÷òåíû ïîñëåäíèå èçìåíåíèÿ â êîíñòðóêöèè. Abstract We report the core and reflector design parameters of reactor PIK needed for neutronic calculations. The recent changes are taken into account. Ïðåïðèíò ¹2472, 12

Titov, Anatoly

Note: This page contains sample records for the topic "aluminized reflector par" 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

PRODUCTION DE TRITIUM DANS LE THORIUM PAR DES PROTONS DE 135 MeV Par M. LEFORT, G. SIMONOFF et X. TARRAGO  

E-Print Network [OSTI]

959 PRODUCTION DE TRITIUM DANS LE THORIUM PAR DES PROTONS DE 135 MeV Par M. LEFORT, G. SIMONOFF et Saclay. Résumé. 2014 On a mesuré la section efficace de production de tritium après bombardment de thorium par des protons de 135 MeV accélérés au synchro-cyclotron d'Orsay. Le tritium était extrait des

Paris-Sud XI, Université de

202

DTERMINATION PRCISE DE L'NERGIE DES RAYONS 03B1 EMIS PAR LE THORIUM Par M. GEORGES PHILBERT, Mme JEANNINE GNIN et M. LOPOLD VIGNERON,  

E-Print Network [OSTI]

16 D�TERMINATION PR�CISE DE L'�NERGIE DES RAYONS 03B1 EMIS PAR LE THORIUM Par M. GEORGES PHILBERT. Sommaire. 2014 Du thorium, de l'ionium et du polonium ont été introduits ensemble dans une émulsion, les et autres nous ont permis de ne pas être gênés par les dérivés radioactifs du thorium. L

Paris-Sud XI, Université de

203

Broadband absorption enhancement in ultra-thin crystalline Si solar cells by incorporating metallic and dielectric nanostructures in the back reflector  

E-Print Network [OSTI]

We propose a back-reflecting scheme in order to enhance the maximum achievable current in one micron thick crystalline silicon solar cells. We perform 3-dimensional numerical investigations of the scattering properties of metallic nanostructures located at the back side, and optimize them for enhancing absorption in the silicon layer. We validate our numerical results experimentally and also compare the absorption enhancement in the solar cell structure, both with quasi-periodic and random metallic nanostructures. We have looked at the interplay between the metallic nanostructures and an integrated back-reflector. We show that the combination of metallic nanoparticles and a metallic reflector results in significant parasitic absorption. We compared this to another implementation based on titanium dioxide nanoparticles which act as a lambertian reflector of light. Our simulation and experimental results show that this proposed configuration results in reduced absorption losses and in broadband enhancement of a...

Jain, Samart; Miljkovic, Vladimir D; Dmitriev, Alexamder; Trompoukis, Christos; Gordon, Ivan; van Dorpe, Pol; Daif, Ounsi El

2013-01-01T23:59:59.000Z

204

Effect of non-uniform slow wave structure in a relativistic backward wave oscillator with a resonant reflector  

SciTech Connect (OSTI)

This paper provides a fresh insight into the effect of non-uniform slow wave structure (SWS) used in a relativistic backward wave oscillator (RBWO) with a resonant reflector. Compared with the uniform SWS, the reflection coefficient of the non-uniform SWS is higher, leading to a lower modulating electric field in the resonant reflector and a larger distance to maximize the modulation current. Moreover, for both types of RBWOs, stronger standing-wave field takes place at the rear part of the SWS. In addition, besides Cerenkov effects, the energy conversion process in the RBWO strongly depends on transit time effects. Thus, the matching condition between the distributions of harmonic current and standing wave field provides a profound influence on the beam-wave interaction. In the non-uniform RBWO, the region with a stronger standing wave field corresponds to a higher fundamental harmonic current distribution. Particle-in-cell simulations show that with a diode voltage of 1.02 MV and beam current of 13.2 kA, a microwave power of 4 GW has been obtained, compared to that of 3 GW in the uniform RBWO.

Chen, Changhua; Xiao, Renzhen; Sun, Jun; Song, Zhimin; Huo, Shaofei; Bai, Xianchen; Shi, Yanchao; Liu, Guozhi [Science and Technology on High Power Microwave Laboratory, Northwest Institute of Nuclear Technology, Xi'an 710024 (China)] [Science and Technology on High Power Microwave Laboratory, Northwest Institute of Nuclear Technology, Xi'an 710024 (China)

2013-11-15T23:59:59.000Z

205

Optimisation combinatoire Modelisation MIP Sujet 1 : Modelisation par la programmation  

E-Print Network [OSTI]

discr`ete (par opposition `a continue) Probl`eme d' optimisation : min f (x) s. `a x X o`u l'ensemble X Domaines d'application Industriel Automobile: gestion de la diversit´e Production ´energ´etique , x2 0 x1 , x2 ZZ Classification: Application industrielle. Probl`eme Lin´eaire (facile) en nombres

Miller, Andrew J.

206

Le jugement des candidats par les entreprises lors des recrutements  

E-Print Network [OSTI]

l'explication du chômage par les modèles de recherche d'emploi ou job search. Or, comme le concèdent l'employer search. Cet article prolonge cette intuition en se donnant pour objectif de mettre en'hypothèse travaillée est celle d'un lien entre la façon dont s'opèrent les mises en relation sur le marché du travail

Paris-Sud XI, Université de

207

PALIERS POUR ROTORS TOURNANT A GRANDE VITESSE Par G. GOBERT,  

E-Print Network [OSTI]

l'air comprimé comme gaz. Le principe consiste à sépa- rer, par un film gazeux, un plan mobile d atmosphérique aux abords du gicleur, due soit à un écoulement où la vitesse du gaz atteint la célérité locale du turbine (poids = 27 g). ~ b = butée : 4 gicleurs 0 1 mm sur 0 20 mm. 4 gicleurs 0 1 mm sur 0 34 mm. Modèle

Paris-Sud XI, Université de

208

2014-04-11 Issuance: Energy Conservation Standards for General Service Fluorescent Lamps and Incandescent Reflector Lamps; Notice of Proposed Rulemaking  

Broader source: Energy.gov [DOE]

This document is a pre-publication Federal Register notice of proposed rulemaking regarding energy conservation standards for general service fluorescent lamps and incandescent reflectors lamps, as issued by the Assistant Secretary for Energy Efficiency and Renewable Energy on April 11, 2014.

209

Vertical cavity surface emitting laser emitting at 1.56 microns with AlGaAsSb/AlAsSb distributed Bragg reflectors  

SciTech Connect (OSTI)

The authors report 77K operation of an optically pumped vertical cavity surface emitting laser with an Sb-based cavity. The structure consists of 15 and 20 pair AlGaAsSb/AlAsSb top and bottom reflectors and a bulk InGaAs active region.

Blum, O.; Klem, J.F.; Lear, K.L.; Vawter, G.A.; Kurtz, S.R.

1998-07-01T23:59:59.000Z

210

Midtemperature Solar Systems Test Facility predictions for thermal performance based on test data: Custom Engineering trough with glass reflector surface and Sandia-designed receivers  

SciTech Connect (OSTI)

Thermal performance predictions based on test data are presented for the Custom Engineering trough and Sandia-designed receivers, with glass reflector surface, for three output temperatures at five cities in the United States. Two experimental receivers were tested, one with an antireflective coating on the glass envelope around the receiver tube and one without the antireflective coating.

Harrison, T.D.

1981-05-01T23:59:59.000Z

211

Efficient directional spontaneous emission from an InGaAs/InP heterostructure with an integral parabolic reflector  

SciTech Connect (OSTI)

In order to increase the radiative efficiency and directivity of spontaneous emission from a lattice-matched InGaAs/InP heterostructure, we have polished the substrate into a parabolic reflector. We combine optical and thermal measurements to obtain the absolute external efficiency over a wide range of carrier densities. Using a simple model, the measurement is used to determine interface, radiative, and Auger recombination rates in the active material. At the optimal density, the quantum efficiency exceeds 60{percent} at room temperature. The divergence of the emitted light is less than 20{degree}. In fact, the beam profile is dominated by a 6{degree} wide lobe that can be swept across the field of emission by changing the excitation position. This suggests a way to create an all-electronic scanned light beam. {copyright} {ital 1998 American Institute of Physics.}

Gfroerer, T.H.; Cornell, E.A. [JILA, National Institute of Standards and Technology and University of Colorado, and Department of Physics, University of Colorado, Boulder, Colorado, 80309-0440 (United States)] [JILA, National Institute of Standards and Technology and University of Colorado, and Department of Physics, University of Colorado, Boulder, Colorado, 80309-0440 (United States); Wanlass, M.W. [National Renewable Energy Laboratory, Golden, Colorado, 80401 (United States)] [National Renewable Energy Laboratory, Golden, Colorado, 80401 (United States)

1998-11-01T23:59:59.000Z

212

Electromagnetic modeling of the energy distribution of a metallic cylindrical parabolic reflector covered with a magnetized plasma layer  

SciTech Connect (OSTI)

The energy distribution along the focal axis of a long metallic cylindrical parabolic reflector with a plasma layer on its surface in the presence of an external magnetic field is investigated. The effects of some physical parameters, such as the plasma frequency, the wave frequency and the thickness of plasma layer on the energy distribution and the reflected and transmitted electromagnetic fields, are simulated. These investigations for both S- and P-polarizations have been done separately. It is found that the maximum value of the reflected intensity increases by increasing the incident wave frequency and by decreasing the plasma layer thickness and the plasma frequency for both polarizations. Furthermore, the results show that the increase of the magnetic field strength can cause an increase in the reflected intensity for S-polarization and a slight decrease for P-polarization.

Niknam, A. R., E-mail: a-niknam@sbu.ac.ir; Khajehmirzaei, M. R. [Laser and Plasma Research Institute, Shahid Beheshti University, GC, Tehran (Iran, Islamic Republic of); Davoudi-Rahaghi, B.; Rahmani, Z.; Jazi, B.; Abdoli-Arani, A. [Department of Laser and Photonics, Faculty of Physics, University of Kashan, Kashan (Iran, Islamic Republic of)

2014-07-15T23:59:59.000Z

213

STARTUP REACTIVITY ACCOUNTABILITY ATTRIBUTED TO ISOTOPIC TRANSMUTATIONS IN THE IRRADIATED BERYLLIUM REFLECTOR OF THE HIGH FLUX ISTOTOPE REACTOR  

SciTech Connect (OSTI)

The objective of this study is to develop a methodology to predict the reactivity impact as a function of outage time between cycles of 3He, 6Li, and other poisons in the High Flux Isotope Reactor s (HFIR) beryllium reflector. The reactivity worth at startup of the HFIR has been incorrectly predicted in the past after the reactor has been shut-down for long periods of time. The incorrect prediction was postulated to be due to the erroneous calculation of 3He buildup in the beryllium reflector. It is necessary to develop a better estimate of the start-of-cycle symmetric critical control element positions since if the estimated and actual symmetrical critical control element positions differ by more than $1.55 in reactivity (approximately one-half inch in control element startup position), HFIR is to be shutdown and a technical evaluation is performed to resolve the discrepancy prior to restart. 3He is generated and depleted during operation, but during an outage, the depletion of 3He ceases because it is a stable isotope. 3He is born from the radioactive decay of tritium, and thus the concentration of 3He increases during shutdown. The computer program SCALE, specifically the TRITON and CSAS5 control modules including the KENO V.A, COUPLE, and ORIGEN functional modules were utilized in this study. An equation relating the down time (td) to the change in symmetric control element position was generated and validated against measurements for approximately 40 HFIR operating cycles. The newly-derived correlation was shown to improve accuracy of predictions for long periods of down time.

Chandler, David [ORNL] [ORNL; Maldonado, G Ivan [ORNL] [ORNL; Primm, Trent [ORNL] [ORNL

2010-01-01T23:59:59.000Z

214

PROCD RAPIDE POUR LA PHOTOMTRIE DES BECS A INCANDESCENCE PAR LE GAZ (1) ;  

E-Print Network [OSTI]

469 PROC�D� RAPIDE POUR LA PHOTOM�TRIE DES BECS A INCANDESCENCE PAR LE GAZ (1) ; Par P. LAURIOL. Les essais des becs à incandescence par le gaz destinés à l'éclai- rage public comportent un très pendant une série de mesures. On emploie une lampe à incandescence électrique dont on #12;471 maintint la

Paris-Sud XI, Université de

215

Analyse Statistique de la Pollution par les PM10 en Haute-Normandie  

E-Print Network [OSTI]

Analyse Statistique de la Pollution par les PM10 en Haute-Normandie Fran¸cois-Xavier Jolloisa travail porte sur l'analyse de la pollution par les particules PM10 en r´egion Haute- Normandie entre 2004´eaires et les m´elanges de mod`eles lin´eaires, on mod´elise les effets des vari- ables sur la pollution par

Boyer, Edmond

216

Text-Alternative Version: L Prize-PAR 38 Competition: A New Start  

Broader source: Energy.gov [DOE]

Below is the text-alternative version of the "L Prize-PAR 38 Competition: A New Start" webcast, held March 27, 2012.

217

Intersubjectivit et implicite par la connexion inter-noncs : une tude du connecteur anglais `but'  

E-Print Network [OSTI]

inter-sujets particulière. Le turc, par exemple, emprunte dans ce cas à l'arabe ou au persan le relateur

Boyer, Edmond

218

PARS II End-of-Month Checklist and Processing Schedule | Department...  

Energy Savers [EERE]

and Processing Schedule PARS II End-of-Month Checklist and Processing Schedule Slide 1 More Documents & Publications Slide 1 PMCDPNewsletterOctober2010SHR.pdf October...

219

E-Print Network 3.0 - approche conceptuelle par Sample Search...  

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

2005 Une analyse automatique de cartes Summary: 'environnement que nous sommes en train de dvelopper comprend un outil de constrction de cartes conceptuelles par l......

220

Institut National Polytechnique de Grenoble No. attribu par la bibliothque  

E-Print Network [OSTI]

'un système de conversion de type VSC-HVDC. Stabilité - Contrôle des perturbations. Directeurs de thèse : M;#12;Table des matières 1 Introduction 17 2 Présentation des systèmes HVDC 25 2.1 Intérêts par rapport à une Modélisation des systèmes VSC-HVDC 31 3.1 Modélisation de la source puissance

Boyer, Edmond

Note: This page contains sample records for the topic "aluminized reflector par" 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 Epic of Pabuji ki par in Performance  

E-Print Network [OSTI]

Occasional Paper 3 World Oral Literature Project v o i c e s o f v a n i s h i n g w o r l d s The Epic of Pabuji ki par in performance Elizabeth Wickett Published by: World Oral Literature Project University of Cambridge Museum of Archaeology... and Anthropology Downing Street Cambridge CB2 3DZ United Kingdom email: oralliteratureproject@gmail.com office phone: +44 (0)1223 333508 www.oralliterature.org ISBN: 978-0-9566052-1-4 © 2010 World Oral Literature Project All rights reserved. No parts...

Wickett, Elizabeth

2010-10-19T23:59:59.000Z

222

Pars Plana Vitrectomy in Eyes Containing a Treated Posterior Uveal Melanoma  

E-Print Network [OSTI]

Pars Plana Vitrectomy in Eyes Containing a Treated Posterior Uveal Melanoma WILLIAM J. FOSTER, MD PURPOSE: To determine the safety of pars plana vitrec- tomy in eyes containing a treated posterior uveal treated with 125 I plaque radiotherapy (seven pa- tients) or transpupillary thermotherapy (two patients

Foster, William

223

PRESSION DE VAPEUR SATURANTE DU LITHIUM ENTRE 462 ET 642 Par Mlle M. MAUCHERAT,  

E-Print Network [OSTI]

d'Imphy) : ce mé- tal résiste très bien à l'action corrosive du lithium, je l'ai adopté aprèsPRESSION DE VAPEUR SATURANTE DU LITHIUM ENTRE 462° ET 642° Par Mlle M. MAUCHERAT, Faculté des Sciences de Marseille. Sommaire. - Dans ce travail on étudie la tension de vapeur saturante du lithium par

Boyer, Edmond

224

SUR UN NOUVEAU DISPOSITIF DE MESURES ELECTROMETRIQUES PAR LA METHODE DU QUARTZ PIEZO ELECTRIQUE  

E-Print Network [OSTI]

SUR UN NOUVEAU DISPOSITIF DE MESURES ELECTROMETRIQUES PAR LA METHODE DU QUARTZ PIEZO ELECTRIQUE Par système isolé. --- Nous avons groupé borne à borne les appareil suivants : Elect-romètre, quartz piézo

Boyer, Edmond

225

Midtemperature Solar Systems Test Facility predictions for thermal performance based on test data. Alpha Solarco Model 104 solar collector with 0. 125-inch Schott low-iron glass reflector surface  

SciTech Connect (OSTI)

Thermal performance predictions based on test data are presented for the Alpha Solarco Model 104 solar collector, with 0.125-inch Schott low-iron glass reflector surface, for three output temperatures at five cities in the United States.

Harrison, T.D.

1981-04-01T23:59:59.000Z

226

EuroPar 2009 POGGI: Puzzle-Based Online Games on Grid Infrastructures POGGI: Puzzle-Based Online Games  

E-Print Network [OSTI]

: The Lunar Lockout Puzzle Lunar Lockout, Yamamoto & Yoshigahara, 1998 #12;EuroPar 2009 ­ POGGI: Puzzle

Iosup, Alexandru

227

Development of a straightness measurement and compensation system with multiple right-angle reflectors and a lead zirconate titanate-based compensation stage  

SciTech Connect (OSTI)

This paper presents a real-time straightness measurement and compensation system with an optical straightness measurement system and a single-axis flexure-hinge type lead zirconate titanate (PZT)-based compensation stage. The optical straightness measurement system consists of a He-Ne laser, a quadrant photodiode detector, and five right-angle reflectors. Multiple laser beam reflections between the right-angle reflectors increase the sensitivity of the straightness measurement by a factor of 6. The right-angle reflectors can be moved by the flexure-hinge type PZT-based compensation stage that is actuated by a PZT actuator to ensure that the laser beam is always projected onto the center of the quadrant detector. These two systems are integrated and fixed on a scanning stage. The resolution of the straightness measurement system is 0.1 {mu}m. Using the real-time straightness compensation system, the straightness error of the scanning stage is fed back to the control system. The compensated straightness error of the scanning stage system was reduced from 6.5 {mu}m to less than 1 {mu}m.

Liu, Chien-Hung; Chen, Jui-Hung [Institute of Electro-Optical and Materials Science, National Formosa University, Huwei, Yunlin 632, Taiwan (China); Teng, Yun-Feng [Department of Mechanical Engineering, National Chung-Cheng University, Chiayi 621, Taiwan (China)

2009-11-15T23:59:59.000Z

228

Fiber optic sensor employing successively destroyed coupled points or reflectors for detecting shock wave speed and damage location  

DOE Patents [OSTI]

A shock velocity and damage location sensor providing a means of measuring shock speed and damage location is disclosed. The sensor consists of a long series of time-of-arrival ``points`` constructed with fiber optics. The fiber optic sensor apparatus measures shock velocity as the fiber sensor is progressively crushed as a shock wave proceeds in a direction along the fiber. The light received by a receiving means changes as time-of-arrival points are destroyed as the sensor is disturbed by the shock. The sensor may comprise a transmitting fiber bent into a series of loops and fused to a receiving fiber at various places, time-of-arrival points, along the receiving fibers length. At the ``points`` of contact, where a portion of the light leaves the transmitting fiber and enters the receiving fiber, the loops would be required to allow the light to travel backwards through the receiving fiber toward a receiving means. The sensor may also comprise a single optical fiber wherein the time-of-arrival points are comprised of reflection planes distributed along the fibers length. In this configuration, as the shock front proceeds along the fiber it destroys one reflector after another. The output received by a receiving means from this sensor may be a series of downward steps produced as the shock wave destroys one time-of-arrival point after another, or a nonsequential pattern of steps in the event time-of-arrival points are destroyed at any point along the sensor. 6 figs.

Weiss, J.D.

1995-08-29T23:59:59.000Z

229

COMPTITION FISSION-SPALLATION DANS LES CIBLES DE THORIUM BOMBARDES PAR PROTONS DE 155 MeV  

E-Print Network [OSTI]

338. COMPÃ?TITION FISSION-SPALLATION DANS LES CIBLES DE THORIUM BOMBARDÃ?ES PAR PROTONS DE 155 Me isotopes du thorium et de l'actinium, par bombardement de Th 232 par des protons de 155 MeV. Ces sections were made on the formation of several isotopes of thorium, and actinium, by bombarding Th 232 by 155 Me

Paris-Sud XI, Université de

230

CONTRIBUTION A L'AUGMENTATION DE LA SENSIBILIT DES THERMOPILES Par MM. PIERRE BARCHEWITZ et JEAN TURCK.  

E-Print Network [OSTI]

tombant sur la thermopile et dans ce cas, on demande à celle-ci d'avoir un temps de réponse aussi faible- trique, celle-ci s'échauffe, sa température qui était initialement égale à la température To de la rayonnement, par conductibilité calorifique, par convection, par effet Peltier ou effet Joule, il s'établit un

Boyer, Edmond

231

LA SARCOSPORIDIOSE DES RUMINANTS AU MAROC ETUDE EPIDEMIOLOGIQUE PAR DEUX TECHNIQUES HISTOLOGIQUES  

E-Print Network [OSTI]

LA SARCOSPORIDIOSE DES RUMINANTS AU MAROC ETUDE EPIDEMIOLOGIQUE PAR DEUX TECHNIQUES HISTOLOGIQUES Agronomique et Vétérinaire Hassan Il. B.P. 704 - Rabat - Agdal. Maroc &dquo; Département de Parasitologie

Boyer, Edmond

232

CROISSANCE PITAXIQUE DE COMPOSS SEMICONDUCTEURS PAR VAPORATION-DIFFUSION EN RGIME ISOTHERME  

E-Print Network [OSTI]

régime isotherme avait été suggérée par l'observation d'un déplacement anormal de rai- nures au cours de

Boyer, Edmond

233

E-Print Network 3.0 - approuve par le Sample Search Results  

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

QUBEC EN UN CLIN D'OEIL Photo:AlSeibCostume:Dominique Summary: QUE L'ALASKA Situ au nord-est du continent amricain, le Qubec est une terre de contrastes, tant par......

234

Texte publi par : JEANNODA, V., RAKOTONIRINA, O., RANDRIANARIVO, H., RAKOTO, D., WRIGHT, P. & HLADIK, C.M. (2003) Le principe toxique du bambou consomm par Hapalemur aureus n'est pas neutralis par la  

E-Print Network [OSTI]

Texte publié par : JEANNODA, V., RAKOTONIRINA, O., RANDRIANARIVO, H., RAKOTO, D., WRIGHT, P, Hanitra RANDRIANARIVO1, Danielle RAKOTO1, Patricia WRIGHT2, & Claude Marcel HLADIK3 1 Université d, Wright et al., 1987) se nourrit essentiellement des repousses d'un bambou dont la toxicité est bien

Boyer, Edmond

235

LA GESTION DE L'EAU PAR LES ASSOCIATIONS DE PROPRITAIRES FONCIERS  

E-Print Network [OSTI]

LA GESTION DE L'EAU PAR LES ASSOCIATIONS DE PROPRI�TAIRES FONCIERS Méthodologie pour un, est posée la question du devenir de ces structures et de leur participation à une gestion de l'eau à gestion à long terme de ces structures et de la ressource en eau, notamment par les acteurs locaux grâce à

Paris-Sud XI, Université de

236

Sur le parcours des rayons 03B1 de l'uranium Par Lon BLOCH,  

E-Print Network [OSTI]

Sur le parcours des rayons 03B1 de l'uranium Par Léon BLOCH, Agrégé de l'Université de Paris parcours des rayons x de l'uranium a été dé- terminé par Bragg1 au moyen d'une méthode indirecte. Bragg a mesuré l'ionisatiol totale due au rayonnement de l'uranium lorsque la substance est recouverte d

Boyer, Edmond

237

LE RAYONNEMENT DES MANCHONS A INCANDESCENCE ; Par M. H. RUBENS1).  

E-Print Network [OSTI]

306 LE RAYONNEMENT DES MANCHONS A INCANDESCENCE ; Par M. H. RUBENS1). 1. - INTRODUCTION. Les remarquables propriétés du manchon à incandescence Auer ont dès l'origine excité au plus haut point l été entreprises par Langley pour la lampe à incandescence au pétrole avec l'aide de ses bolomètres

Paris-Sud XI, Université de

238

MISSION CATHODIQUE A L'INTRIEUR DES LAMPES A INCANDESCENCE ; par M. L. HOULLEVIGUE (1).  

E-Print Network [OSTI]

523 �MISSION CATHODIQUE A L'INT�RIEUR DES LAMPES A INCANDESCENCE ; par M. L. HOULLEVIGUE (1). I. Lorsqu'on survolte fortement une lampe à incandescence à filament de charbon, par exemple en mettant sous incandescent. ' , Fic.. 1. Tous ces effets peuvent être attribués, en première analyse, aux électrons émanés du

Boyer, Edmond

239

Volatilit du dpt actif du thorium Par T. BARRATT et A. B. WOOD  

E-Print Network [OSTI]

198 Volatilité du dépôt actif du thorium Par T. BARRATT et A. B. WOOD [Woolwich Polytechnic]. Marsden et Darwini avaient proposé pour la série de transformations du thorium A le schéma suivant, Cet et thoriums C faites par Mlle Meitner 2 et Marsden et Wilson3ayant donné des résultats contradictoires, les

Paris-Sud XI, Université de

240

MESURE DU PARCOURS MOYEN DES RAYONS 03B1 DU THORIUM PAR LA MTHODE PHOTOGRAPHIQUE  

E-Print Network [OSTI]

MESURE DU PARCOURS MOYEN DES RAYONS 03B1 DU THORIUM PAR LA M�THODE PHOTOGRAPHIQUE Par Mme HENRIETTE thorium dans l'émulsion des plaques photo- graphiques, on déduit leur parcours moyen dans l'air à150 thorium a déjà fait l'objet de plusieurs mesures dont les résultats ne sont pas toujours concordants. Les

Paris-Sud XI, Université de

Note: This page contains sample records for the topic "aluminized reflector par" 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

ABSORPTION INFRA-ROUGE DANS LES ALLIAGES NORMAUX Par B. CAROLI (1),  

E-Print Network [OSTI]

884. ABSORPTION INFRA-ROUGE DANS LES ALLIAGES NORMAUX Par B. CAROLI (1), Résumé. - L'absorption de'électrons de Bloch, par une méthode quantique. On en déduit pour les fréquences faibles un coefficient d'absorption sont estimées sur un exemple simple. Abstract. 2014 Infra-red absorption by dilute alloys is studied

Boyer, Edmond

242

Absorption du rayonnement 12 et 8 millimtres par les vapeurs de propane sous pression  

E-Print Network [OSTI]

Absorption du rayonnement 12 et 8 millimètres par les vapeurs de propane sous pression A. Battaglia des pertes diélectriques (03B5") présentées par le propane gazeux aux fréquences de 24 et 36 GHz, à la Birnbaum. Abstract. 2014 Experimental study of dielectric losses (03B5") presented by gaseous propane

Boyer, Edmond

243

Silvered polymer reflectors  

SciTech Connect (OSTI)

One of the principal objectives of the Solar Thermal Research Program is to develop silvered polymer films for constructing durable, low-cost, lightweight concentrating collectors for high temperature solar thermal systems. The mirrors are characterized for their solar-weighted (air mass 1.5) reflectance and exposed to environmental degradation. Photodegradation of polymers has also been studied using Fourier transform infrared spectroscopy supplemented with surface analysis characterization. Results are discussed for extruded films, ultraviolet effects, metallization, and the effects of polymer additives. (LEW)

Schissel, P.; Neidlinger, H.H.; Czanderna, A.W.

1985-03-01T23:59:59.000Z

244

Hommes et milieux : volution, interactions Participation des elus C aux comits de visite des units par l'AERES  

E-Print Network [OSTI]

de visite des unités par l'AERES La section 31 du comité national, lors de la session d'automne 2012, demande par cette motion à la direction de l'AERES d'intégrer systématiquement dans les comités de visite que leur opinion puisse s'exprimer et être prise en compte au cours de l'évaluation des unités par l'AERES

van Tiggelen, Bart

245

LE CALENDRIER MAYA Du XVIe au XIXe sicle, la domination exerce par les Espagnols sur la plus grande  

E-Print Network [OSTI]

par le terme wooj) s'étend également sur les �tats avoisinants de Chiapas et Tabasco, sur le Guatemala

Boyer, Edmond

246

Rglage du PID numrique par rduction de la complexit du rgulateur  

E-Print Network [OSTI]

Réglage du PID numérique par réduction de la complexité du régulateur Zito Gianluca*, Landau Ioan procédure de synthèse des régulateurs PID numériques pour les systèmes d'ordre élevé est présentée. Cette modèle du système. L'estimation des paramètres du PID est faite par un algorithme du type identication en

Paris-Sud XI, Université de

247

Les agricultures familiales refltent une trs grande diversit. Elles se caractrisent par une multitude de techniques, une richesse de savoir-faire et par une savante combinaison  

E-Print Network [OSTI]

'arganiers, région de Tafraout, Maroc L'agriculture familiale ne saurait se passer de l'arbre et de la forêt. �pineux endémique du Maroc, l'arganier est parfaitement adapté à l'aridité. Les hommes ne le plantent pas mais 1998 « réserve de la biosphère » par l'Unesco. ©IRD-GenevièveMichon MAROC Les agricultures familiales

248

Le hakka, par Hilary Chappell et Laurent Sagart Le dialecte hakka est parl par quelque 35 millions de locuteurs, principalement dans le nord du  

E-Print Network [OSTI]

répandu hors de Chine, en particulier en Malaisie, dans le nord de Bornéo, en Guyane, au Surinam et à ont pu entraîner une forte animosité avec les populations chinoises plus anciennement établies. Cette («Puntis») dans la province de Canton. Méprisés par la société cantonaise, et assimilés aux She, population

Paris-Sud XI, Université de

249

Utilisation des DEL et photodiodes PIN pour la transmission haute qualit de signaux TV par fibre optique  

E-Print Network [OSTI]

95 Utilisation des DEL et photodiodes PIN pour la transmission haute qualité de signaux TV par diodes électroluminescentes et de photodiodes PIN pour la transmission TV en bande de base par fibres The use of LEDs and PIN photodiodes for optical TV base-band transmission requires special care to reduce

Boyer, Edmond

250

PAR conversion efficiencies of a tropical rain forest R.J. Luxmoore1 J.G. Saldarriaga2  

E-Print Network [OSTI]

-MJ-1 range of PAR energy conversion values derived from Jordan (1971) for 17 forest types, includingPAR conversion efficiencies of a tropical rain forest R.J. Luxmoore1 J.G. Saldarriaga2 1) absorbed during various stages of regeneration of a tropical rain forest in the upper Rio Negro region

Paris-Sud XI, Université de

251

conomie et Gestion Participation des lus C aux comits de visite des laboratoires par l'AERES  

E-Print Network [OSTI]

laboratoires par l'AERES La section 37 du comité national demande par cette motion à la direction de l'AERES d-Benoît Zimmermann Destinataires : Pierre GLAUDES, Directeur de la section des unités de recherche AERES Alain

van Tiggelen, Bart

252

GaInAsSb/A1GaAsSb/Sb Thermophotovoltaic Devices With an Internal Back-Surface Reflector Formed by Wafer Bonding  

SciTech Connect (OSTI)

A novel implementation for GAInAsSb/AlGaAsSb/GaSb TPV cells with an internal back-surface reflector (BSR) formed by wafer bonding to GaAs is demonstrated. The SiO{sub x}/Ti/Au internal BSR enhances optical absorption within the device, while the dielectric layer provides electrical isolation. This configuration has the potential to improve TPV device performance; is compatible with monolithic series-interconnection of TPV cells for building voltage; and can mitigate the requirements of filters used for front-surface spectral control. At a short-circuit density of 0.4 A/cm{sup 2}, the open-circuit voltage of a single TPV cell is 0.2 V, compared to 0.37 and 1.8 V for 2- and 10-junction series-interconnected TPV cells, respectively.

C.A. Wang; R.K. Huang; D.A. Shiau; M.K. Connors; P.G. Murphy; P.W. O'brien; A.C. Anderson; D.M. DePoy; G. Nichols; M.N. Palmasiano

2002-12-18T23:59:59.000Z

253

Laser damage study of nodules in electron-beam-evaporated HfO{sub 2}/SiO{sub 2} high reflectors  

SciTech Connect (OSTI)

A reactive electron beam evaporation process was used to fabricate 1.064 {mu}mHfO{sub 2}/SiO{sub 2} high reflectors. The deposition process was optimized to reduce the nodular density. Cross-sectioning of nodular defects by a focused ion-beam milling instrument showed that the nodule seeds were the residual particles on the substrate and the particulates from the silica source ''splitting.'' After optimizing the substrate preparation procedure and the evaporation process, a low nodular density of 2.7/mm{sup 2} was achieved. The laser damage test revealed that the ejection fluences and damage growth behaviors of nodules created from deep or shallow seeds were totally different. A mechanism based on directional plasma scald was proposed to interpret observed damage growth phenomenon.

Cheng Xinbin; Shen Zhengxiang; Jiao Hongfei; Zhang Jinlong; Ma Bin; Ding Tao; Lu Jiangtao; Wang Xiaodong; Wang Zhanshan

2011-03-20T23:59:59.000Z

254

Grant Title: INITIATIVE FOR MAXIMIZING STUDENT DEVELOPMENT (IMSD) (R25) Funding Opportunity Number: PAR-13-082. CFDA Number(s): 93.859.  

E-Print Network [OSTI]

: PAR-13-082. CFDA Number(s): 93.859. Agency/Department: National Institutes of Health (NIH), National

Farritor, Shane

255

HISOIRE DU RSEAU DE L'INSERTION PAR L'ACTIVIT CONOMIQUE Philippe Brgeon  

E-Print Network [OSTI]

« Le travail du social » dirigée par Alain Vilbrod, aux éditions l'Harmattan Il s'appuie sur un travail'insertion ?, Les éditions l'harmattan (Ed.) (2008) 276" #12;2 2 de vue du nombre de salariés en insertion concernés

Paris-Sud XI, Université de

256

PArAmedic AcAdemy College of Rural and Community Development  

E-Print Network [OSTI]

PArAmedic AcAdemy College of Rural and Community Development Community and Technical College 907-455-2895 www.ctc.uaf.edu/programs/paramedic/ The paramedic academy prepares students to take the national para Medical Board. The paramedic academy offers the highest level of education avail- able to prepare for work

Hartman, Chris

257

Conception centree utilisateur de prototypes interactifs pour la gestion de contenu multimedia par similarite  

E-Print Network [OSTI]

Conception centr´ee utilisateur de prototypes interactifs pour la gestion de contenu multimedia par de donn´ees mul- timedia, adapt´ees `a des cas d'utilisation divers et pro- fils d'utilisateurs vari similaire? L'interface utilisateur au service des cas d'utilisation La navigation et manipulation de

Dupont, Stéphane

258

LA GESTION DE RESULTAT PAR LES MONTAGES FINANCIERS DE TITRISATION : LE  

E-Print Network [OSTI]

1 LA GESTION DE RESULTAT PAR LES MONTAGES FINANCIERS DE TITRISATION : LE CAS DES SOCIETES FRAN�AISES COTEES Patrick BOISSELIER Professeur des universités Conservatoire National des Arts et Métiers gestion Centre de Recherche en Ingénierie Financière et Finances publiques (Université de Nice

Paris-Sud XI, Université de

259

Gestion de la Qualit de Service par les Hypercubes dans un Environnement  

E-Print Network [OSTI]

Gestion de la Qualité de Service par les Hypercubes dans un Environnement de Routage Multipoint : Cas des Protocoles PIM-SM et MPLS Mohamed Dafir ECH-CHERIF EL KETTANI Ecole Nationale Supérieure d mettre en °uvre une politique efficace de gestion de la Qualité de Service liée au groupe. Dans cet

Boyer, Edmond

260

ACARYOCHLORIS EXPLAINING THE RIDDLE OF CHLOROPHYLL D IN RED ALGAE AND EXPANDING PAR FOR OXYGENIC PHOTOSYNTHESIS  

E-Print Network [OSTI]

ACARYOCHLORIS ­ EXPLAINING THE RIDDLE OF CHLOROPHYLL D IN RED ALGAE AND EXPANDING PAR FOR OXYGENIC strain is shown to live epi- phytically on the red alga Gelidium caulacantheum, which itself is harvested by the red alga. Availability of far red light, however, is relatively unaffected by DOM or red

Oregon, University of

Note: This page contains sample records for the topic "aluminized reflector par" 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.


261

Proposition de sujet Diagnostics lasers avancs pour la combustion assiste par plasma  

E-Print Network [OSTI]

Proposition de sujet Diagnostics lasers avancés pour la combustion assistée par plasma Advanced Laser Diagnostics for Plasma Assisted Combustion Contexte : Les industries automobiles et aéronautiques.O., "Atmospheric pressure plasma diagnostics by OES, CRDS and TALIF,"

Bezerianos, Anastasia

262

A review of "La Rochefoucauld par quatre chemins. Les Maximes et leurs ambivalence" by Eric Turcat  

E-Print Network [OSTI]

82 seventeenth-century news Eric Turcat. La Rochefoucauld par quatre chemins. Les Maximes et leurs ambivalence. Biblio 17, v. 206. Tübingen: Gunter Narr Verlag, 2013. 220 pp. ISBN 978-63-8233-6803-8. $65.91. Review by denis d. grélé, university...

Grele, Denis D.

2014-01-01T23:59:59.000Z

263

ABSORPTION ET DIFFUSION DE PHOTONS OPTIQUES PAR UN ATOME EN INTERACTION AVEC DES PHOTONS DE RADIOFRQUENCE  

E-Print Network [OSTI]

153. ABSORPTION ET DIFFUSION DE PHOTONS OPTIQUES PAR UN ATOME EN INTERACTION AVEC DES PHOTONS DE'annuler. Ceci modifie de façon importante le spectre d'absorption de l'atome « habillé» en champ faible et l of the absorption spectrum of the "dressed" atom in a weak magnetic field and of the magnetic depolarization effect

Paris-Sud XI, Université de

264

DIFFRACTION D'ONDES ACOUSTIQUES (OU RADIOELECTRIQUES) PAR UN PLATEAU RIGIDE (OU PARFAITEMENT CONDUCTEUR).  

E-Print Network [OSTI]

, Département Acoustique et Eclairage 11 rue Henri Picherit, 44300 Nantes, France. Problématique : Dans le cadre. Tiberio et S. Maci [TIB 1, TIB 2]. Il présente l'avantage, par rapport aux autres publications traitant de

Paris-Sud XI, Université de

265

SUR L'ANALYSE THERMODYNAMIQUE DES FORCES LECTROMOTRICES. Par M. JEAN VILLEY.  

E-Print Network [OSTI]

'auteur éclaire et complète; par l'analyse des diverses forces électro- motrices capables d'entretenir un courant. Les conclusions principales auxquelles conduit l'analyse méthodique des forces électro- motrices

Paris-Sud XI, Université de

266

Friction dependence of shallow granular flows from discrete par-ticle simulations  

E-Print Network [OSTI]

Friction dependence of shallow granular flows from discrete par- ticle simulations Anthony Thornton relation for the macroscopic bed friction or basal roughness obtained from micro-scale discrete particle simulations of steady flows. We systematically vary the bed friction by changing the contact friction

Al Hanbali, Ahmad

267

Optimisation de pilotage d'installation rsidentielle de chauffage par micro-cognration  

E-Print Network [OSTI]

and Power (mCHP), Energy management, Optimization. 1. INTRODUCTION La production locale d'électricité chez tarifaires dans le temps pour optimiser sa production et sa consommation propres. 2. MICRO-COGENERATION POUROptimisation de pilotage d'installation résidentielle de chauffage par micro- cogénération

Paris-Sud XI, Université de

268

DIFFUSION ELASTIQUE DES NEUTRONS PAR LE TRITIUM A 14 MeV  

E-Print Network [OSTI]

DIFFUSION ELASTIQUE DES NEUTRONS PAR LE TRITIUM A 14 MeV Laboratoire de Neutronique, CNRS, Toulouse of neutrons from tritium is studied with a thin scatterer close to a Cs1 scintillator. The experimental. Le diffuseur utilisé est une cible mince contenant 2,22 an3 de tritium absorbé dans une épaisseur de

Paris-Sud XI, Université de

269

Dimensionnement et gestion d'un systme de stockage thermique par hydro-accumulation : application la  

E-Print Network [OSTI]

Dimensionnement et gestion d'un système de stockage thermique par hydro-accumulation : application de stockage thermique de type hydro-accumulation destiné à une chaufferie collective multi, mix-énergétique, stockage thermique, hydro-accumulation, dimensionnement optimal, gestion, graphe d

Paris-Sud XI, Université de

270

SUR LA CAUSE DE L'LECTRISATION DES NUAGES ORAGEUX; PAR M. H. PELLAT.  

E-Print Network [OSTI]

, Peltier a admis, pour expliquer les phé- nomènes électriques dont notre atmosphère est le siège, que le Peltier, qui est, non une hypothèse, mais bien une réalité. On sait, en effet, que par le beau temps le milieu isolant augmente en s'éloignant de la surface d'un conducteur, celle-ci est chargée d

Paris-Sud XI, Université de

271

Nest-site selection in Eastern hognose snakes (Heterodon platirhinos) Casey Peet-Par  

E-Print Network [OSTI]

Nest-site selection in Eastern hognose snakes (Heterodon platirhinos) by Casey Peet-Paré Thesis...........................................................................................19 #12;3 Abstract Nest-site selection is considered to be the only form of parental care in most by selecting nest-sites which have optimal conditions. I examined nest-site selection in Eastern hognose snakes

Blouin-Demers, Gabriel

272

ED n364 : Sciences Fondamentales et Appliques Nattribu par la bibliothque  

E-Print Network [OSTI]

NUMERIQUE DU SOUDAGE PAR FROTTEMENT-MALAXAGE NUMERICAL SIMULATION OF THE FRICTION STIR WELDING PROCESS,version1-8Apr2008 #12;- 4 - ABSTRACT Despite considerable interests in the Friction Stir Welding (FSW the different stages of the Friction Stir Welding (FSW) process. A splitting method is utilized: a) the material

Paris-Sud XI, Université de

273

Digestion des glucides cytoplasmiques de la fverole par le veau prruminant  

E-Print Network [OSTI]

Digestion des glucides cytoplasmiques de la féverole par le veau préruminant J. M. BESLE B. LASSALAS, P. THIVEND Laboratoire de la Digestion des Ruminants, LN.R.A. Theix 63110 Beaumont France. Summary. Digestion of field bean cytoplasmic carbohydrates by the preruminant calf. Three veal calves

Paris-Sud XI, Université de

274

Digestion des glucides de la levure d'alcanes par le veau prruminant  

E-Print Network [OSTI]

Digestion des glucides de la levure d'alcanes par le veau préruminant J. M. BESLE, Bernadette LASSALAS, P. THIVEND Laboratoire de la Digestion des Ruminanfs, 1.N.R.A., Theix, 63110 Beaumont France. Summary. Digestion of alkane yeast carbohydrates by the preruminant calf. Four 15-day old preruminant

Paris-Sud XI, Université de

275

CALiPER Report 20.1: Quality of Beam, Shadow, and Color in LED PAR38 Lamps  

Broader source: Energy.gov [DOE]

View the video about CALiPER Report 20.1 which focuses on human-evaluated characteristics, including beam quality, shadow quality, and color quality in LED PAR38 lamps.

276

aluminates: Topics by E-print Network  

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

Zone Physics Websites Summary: -rich coatings, along with the more soluble precipitated uranyl carbonates and uranophane, likely control) in the 300 Area included Cu (50 tons),...

277

Reactive Air Aluminizing - Energy Innovation Portal  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the1 -the Mid-Infrared at 278, 298, andEpidermal

278

Protolyse in vitro de casine et de gluten par les enzymes pancratiques  

E-Print Network [OSTI]

Protéolyse in vitro de caséine et de gluten par les enzymes pancréatiques Marie-Claire CAMUS, J. C de celle de la pepsine. Dans une étude antérieure in vitro (Camus et al., 1973), nous observions pour et le gluten disparaissaient avec la pepsine (Camus et Sautier, 1972) et diminuaient avec la trypsine

Paris-Sud XI, Université de

279

La pollution marine est gnralement provoque par les eaux uses, d'origines  

E-Print Network [OSTI]

La pollution marine est généralement provoquée par les eaux usées, d'origines domestiques long des bassins-versants qui débouchent sur la mer. Pollution marine 16 Métaux Ils présentent trois indique généralement l'existence d'autres sources de pollution. © Ssuaphoto / Dreamstime.com © Uatp1

280

Pont mine, vieil elephant mangeur de bananes, et utilisation de la programmation par ensembles reponses  

E-Print Network [OSTI]

Pont min´e, vieil ´el´ephant mangeur de bananes, et utilisation de la programmation par ensembles r. Moinard INRIA Bretagne-Atlantique IRISA () ASP : Pont min´e, ´el´ephant & bananes 15 juin 2012, IRIT Bretagne-Atlantique IRISA () ASP : Pont min´e, ´el´ephant & bananes 15 juin 2012, IRIT, Toulouse 2 / 60 hal

Paris-Sud XI, Université de

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


281

K-Area and Par Pond Sewage Sludge Application Sites groundwater monitoring report, Third quarter 1992  

SciTech Connect (OSTI)

During third quarter 1992, the three wells at the K-Area Sewage Sludge Application Site (KSS wells) and the three wells at the Par Pond Sewage Sludge Application Site (PSS wells) were sampled for analyses required each quarter or annually by South Carolina Department of Health and Environmental Control Construction Permit 13,173 and for base-neutral/acid semivolatile constituents. None of the analytical results exceeded standards.

Thompson, C.Y.

1993-01-01T23:59:59.000Z

282

EFFETS DES FAIBLES IRRADIATIONS SUR L'URANIUM Par Y. QUR,  

E-Print Network [OSTI]

489. EFFETS DES FAIBLES IRRADIATIONS SUR L'URANIUM Par Y. QU�R�, Centre d'�tudes Nucléaires de fragments de fission dans l'uranium, on présente quelques résultats de mesure de longueur et de résistivité modifiés. Abstract. 2014 After recalling Brinkman's model for the action of fission fragments on uranium

Boyer, Edmond

283

AnKLe: detection automatique d'attaques par divergence d'information  

E-Print Network [OSTI]

AnKLe: d´etection automatique d'attaques par divergence d'information Emmanuelle Anceaume1 and Yann, nous proposons AnKLe (pour Attack-tolerant eNhanced Kullback- Leibler divergence Estimator), un´er´e. AnKLe combine des techniques d'´echantillonnage et des m´ethodes de th´eorie de l'information. Il est

Paris-Sud XI, Université de

284

Utilisation de theor`emes de point fixe. Par Nicolas Lanchier 1  

E-Print Network [OSTI]

Utilisation de th´eor`emes de point fixe. Par Nicolas Lanchier 1 1 Th´eor`emes de point fixe. D´efinition 1.1 -- On appelle point fixe de f : X - X tout ´el´ement X tel que f() = . Th´eor`eme 1.2 (point point fixe. [4], Sect. 1.2 Th´eor`eme 1.3 -- Soient X un espace complet et f : X - X une application. S

Lanchier, Nicolas

285

RINNERVATION D'UN MUSCLE STRI PAR DES FIBRES PRGANGLIONNAIRES PARASYMPATHIQUES.  

E-Print Network [OSTI]

du lieu d'émer- gence du nerf récurrent, le diaphragme a été réinnervé par des fibres motrices des plaques motrices sur ce muscle ;J 3) ces plaques motrices sont fonctionnelles ; 4) l'activité des sur des fibres musculaires striées. L'activité électrique des unités motrices réinnervées peut être

Boyer, Edmond

286

Approche hybride par la modelisation electromagnetique des interactions en champ proche et en champ lointain  

E-Print Network [OSTI]

Approche hybride par la mod´elisation ´electromagn´etique des interactions en champ proche et en'expansion du champ ´electromagn´etique dans diff´erents rep`eres `a partir de la connaissance des conditions aux limites se trouvent d´ej`a dans Stratton [1]. Ainsi, la connaissance du champ ´electromagn´etique

Boyer, Edmond

287

PHNOMNES DITS HYDRO-LECTRIQUES ET HYDROMAGNTIQUES; PAR M. C.-A. BJERKNES (1),  

E-Print Network [OSTI]

509 PH�NOM�NES DITS HYDRO-�LECTRIQUES ET HYDROMAGN�TIQUES; PAR M. C.-A. BJERKNES (1), Professeur à corps hydro- électrisés s'attirent ou se repoussent, suivant que leurs vibrations sont concordantes ou- minuent en même temps). Un hydro-aimant, formé ou bien d'une splzère oscillante ou de deux pulsateurs

Paris-Sud XI, Université de

288

Action de l'manation du radium sur les sels de thorium Par HERCHFINKEL  

E-Print Network [OSTI]

417 Action de l'émanation du radium sur les sels de thorium Par HERCHFINKEL [Faculté des Sciences'une solution d'azotate de thorium abandonnée a elle-même pendant plusieurs mois dégage une cer- taine quantité'on fait agir une forte quantité d'émanation de radium sur le même sPl de thorium il se produit en- core

Paris-Sud XI, Université de

289

TUDE CALORIMTRIQUE DU RAYONNEMENT DU DPT ACTIF DU THORIUM Par L. WINAND,  

E-Print Network [OSTI]

�TUDE CALORIM�TRIQUE DU RAYONNEMENT DU D�P�T ACTIF DU THORIUM Par L. WINAND, Laboratoire Curie du thorium, permet de déterminer l'équivalence milligramme gamma équivalent ~ ~ millicurie dans les rayonnement du dépôt actif du thorium. Des résultats de ces mesures, on tire une valeur de l

Boyer, Edmond

290

NIVEAUX EXCITS DU 50Sn11666 Par J. COLARD (*), P. GEPTS (**), L. GRENACS, A. JONES (***)  

E-Print Network [OSTI]

électrons de conversion externe ont été obtenus par effet photoélectrique dans une feuille d'uranium naturel transition de 1 756 keV. La méthode des conversions internes indique pour le niveau de 2 535 keV J = 4 et la the existence of the 1 756 keV transition. The internal conversion method indicates J = 4 and positive parity

Paris-Sud XI, Université de

291

Resumes de textes par extraction de phrases, algorithmes de graphe et energie textuelle  

E-Print Network [OSTI]

R´esum´es de textes par extraction de phrases, algorithmes de graphe et ´energie textuelle Silvia. Lorsqu'il s'agit de r´esumer automatiquement une large quantit´e de texte, l'approche actuellement la´en´eralement effectu´es sur la matrice mots � phrases. Le r´esum´e reprend alors les n phrases les plus lourdes dans l

San-Juan, Eric

292

UNE SOURCE DE LUMIRE POUR LE DOSAGE ISOTOPIQUE DE L'URANIUM PAR SPECTROMTRIE D'MISSION  

E-Print Network [OSTI]

65 A. UNE SOURCE DE LUMI�RE POUR LE DOSAGE ISOTOPIQUE DE L'URANIUM PAR SPECTROM�TRIE D'�MISSION Par tétrachlorure ou au tétraiodure d'uranium qui émettent le spectre optique de l'uranium avec une intensité, une de routine. Abstract. 2014 A process is described for producing and exciting electrodeless uranium

Boyer, Edmond

293

ABSORPTION PHOTOLECTRIQUE DES RAYONS 03B3 DANS LA COUCHE L DES ATOMES Par Mme NADINE MARTY.  

E-Print Network [OSTI]

401. ABSORPTION PHOTO�LECTRIQUE DES RAYONS 03B3 DANS LA COUCHE L DES ATOMES Par Mme NADINE MARTY la suite, comme la section efficace totale d'absorption photoélectrique par atome. Les résultats de. Laboratoire dé Chimie nucléaire, Collège de France. Sommaire. - On rappelle la valeur des sections efficaces d'absorption

Boyer, Edmond

294

REACTIONS (p, 2pxn) SUR LE THORIUM 232 DE 30 A 120 MeV Par HENRI GAUVIN,  

E-Print Network [OSTI]

836. REACTIONS (p, 2pxn) SUR LE THORIUM 232 DE 30 A 120 MeV Par HENRI GAUVIN, Laboratoire Joliot isotopes 224, 225, 226, 227, 228 de l'actinium dans le thorium 232 bombardé par des protons de 30 à 120 Me (224 to 228) in the bombardment of thorium 232 with 30 to 120 MeV protons. In the low energy range (30

Paris-Sud XI, Université de

295

Contamination d'un plasma d'argon par des vapeurs anodiques de cuivre P. Andanson et B. Cheminat  

E-Print Network [OSTI]

symboles Nous présentons une étude expérimentale sur la contamination d'un plasma d'arc par des vapeurs775 Contamination d'un plasma d'argon par des vapeurs anodiques de cuivre P. Andanson et B proche de l'anode en cuivre (1 mm à 1 cm) d'un arc stabilisé sous atmosphère d'argon (15 A et 30 A) est

Boyer, Edmond

296

K-Area and Par Pond Sewage Sludge Application Sites groundwater monitoring report: Second quarter 1993  

SciTech Connect (OSTI)

During second quarter 1993, samples from the three monitoring wells at the K-Area site (KSS series) and the three monitoring wells at the Par Pond site (PSS series) were analyzed for constituents required by South Carolina Department of Health and Environmental Control Construction Permit 13,173 and for other constituents as part of the Savannah River Site (SRS) Groundwater Monitoring Program. This report describes monitoring results that exceeded the final Primary Drinking Water Standards (PDWS) or the SRS flagging criteria. During second quarter 1993, no constituents exceeded the final PDWS or any other flagging criteria at the K-Area and Par Pond Sewage Sludge Application Sites. During first quarter 1993, aluminum and iron exceeded the SRS Flag 2 criteria in one or more of the KSS and the PSS wells. These constituents were not analyzed second quarter 1993. In the KSS well series, the field measurement for alkalinity ranged as high as 35 mg/L in well KSS 1D. Alkalinity measurements were zero in the PSS wells, except for a single measurement of 1 mg/L in well PSS 1D. Historical and current water-level elevations at the K-Area Sewage Sludge Application Site indicate that the groundwater flow direction is south to southwest (SRS grid coordinates). The groundwater flow direction at the Par Pond Sewage Sludge Application Site could not be determined second quarter 1993.

Not Available

1993-10-01T23:59:59.000Z

297

Grant Title: NIDCD PHASE I/II PRELIMINARY CLINICAL TRIALS IN COMMUNICATION DISORDERS Funding Opportunity Number: PAR-12-123. CFDA Number(s): 93.173.  

E-Print Network [OSTI]

Opportunity Number: PAR-12-123. CFDA Number(s): 93.173. Agency/Department: National Institutes of Health (NIH

Farritor, Shane

298

Grant Title: MENTAL HEALTH RESEARCH DISSERTATION GRANT TO INCREASE DIVERSITY (R36) Funding Opportunity Number: PAR-12-103. CFDA Number(s): 93.242.  

E-Print Network [OSTI]

Opportunity Number: PAR-12-103. CFDA Number(s): 93.242. Agency/Department: Department of Health and Human

Farritor, Shane

299

Grant Title: BEHAVIORAL SCIENCE TRACK AWARD FOR RAPID TRANSITION (B/START) (R03) Funding Opportunity Number: PAR-12-251. CFDA Number(s): 93.279.  

E-Print Network [OSTI]

Opportunity Number: PAR-12-251. CFDA Number(s): 93.279. Agency/Department: Department of Health and Human

Farritor, Shane

300

DOE Requires Westinghouse to Cease Sales of Two Light Bulb Models...  

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

and Fuzhou Sunlight Lighting Electrical Appliance Company to allow the companies to resume sales of an incandescent reflector lamp basic model 50PAR30F (Westinghouse product...

Note: This page contains sample records for the topic "aluminized reflector par" 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

pour unite : l'angstr6m pour a, le kiloelectron-volt pour b et le centimetre carre par gramme  

E-Print Network [OSTI]

cristaux d'halog6nures alcalins par irradiation de ces derniers avec des rayons X, ont ete 6tudi6es par de des rayons X de 5o kV. Nous avons 6tudi6 des cristaux d'halog6nures alcalins synth6tiques en utilisant

Paris-Sud XI, Université de

302

Atomes et molcule -optique et lasers -plasmas chauds Participation des lus C aux comits de visite des laboratoires par l'AERES  

E-Print Network [OSTI]

aux comités de visite des laboratoires par l'AERES La section 04 du comité national demande par cette - Joël BERTRAND, directeur général délégué à la science au CNRS Didier HOUSSIN, Président de l'AERES

van Tiggelen, Bart

303

FOURNET, M. & BEDIN, V. (1998). L'ingnierie de formation entre traditionalisme et modernisme ; les nouvelles formes de formation continue vues par des dirigeants de PME-PMI. Formation Emploi, n 63, 43-  

E-Print Network [OSTI]

; les nouvelles formes de formation continue vues par des dirigeants de PME-PMI. Formation Emploi, n° 63 modernisme Les nouvelles formes de formation continue vues par des dirigeants de PME-PMI Michel Fournet et

Boyer, Edmond

1998-01-01T23:59:59.000Z

304

Deployable Synthetic Aperture Radar Reflector  

E-Print Network [OSTI]

) satellite. The structure consists of four cylindrical surfaces formed from thin sheets of carbon-fibre-reinforced-plastic (CFRP) connected by flexible hinges along the edges. The key to forming a cylindrical surface with any. At full scale the reflective surface will be 7.9 m long by 3.2 m wide, and it has been estimated

Pellegrino, Sergio

305

L'agriculture familiale se dfinit par le recours quasi-exclusif du travail familial, sans sa-laris permanents,et par des interrelations fortes entre les agriculteurs et leur exploitation.Le  

E-Print Network [OSTI]

1 #12;L'agriculture familiale se définit par le recours quasi-exclusif à du travail familial, sans agricultures familiales. Avec ses 500 millions d'exploitations, elles font vivre 2,6 milliards de personnes et, les agricultures familiales sont présentes sur tous les continents et dans tous les écosystèmes. Cette

306

Oui, Monsieur Vonglis, l'tat, c'tait bien lui ! Mais quel tat ? Par Isabelle STOREZ-BRANCOURT  

E-Print Network [OSTI]

éditions L'Harmattan, une mise au point roborative sur la monarchie absolue1 . Mise au point, en effet Bourbons ­ n'est pas une royauté limitée par un 1 Bernard Vonglis, La monarchie absolue française, L'Harmattan

Paris-Sud XI, Université de

307

N d'ordre : 516 Annee 2009 N attribue par la biblioth`eque : 07ENSL0 516  

E-Print Network [OSTI]

colloque intitul´e Musique et Po´esie au XVIe si`ecle organis´e par le CNRS, le 4 juillet 1953. tel chance de pouvoir partager des id´ees, des remarques, ou tout simplement le plaisir de la science bien

Boyer, Edmond

308

Dynamique du peuplement de Collemboles sous l'effet d'une pollution croissante par des ETM  

E-Print Network [OSTI]

sampled at three plots along a gradient of increasing pollution by heavy metals (Zn, Pb and Cd of reproduction. Metal pollution caused environmental changes which affected species assemblages both by changingDynamique du peuplement de Collemboles sous l'effet d'une pollution croissante par des ETM GILLET

Boyer, Edmond

309

Enjeux et limites du pilotage par les indicateurs en management public, l'exemple de la recherche  

E-Print Network [OSTI]

'appeler le New Public Management (NPM dans la suite du texte, traduit en français par Nouvelle Gestion dangereux d'une telle croyance. Nous avons pris ici le parti, non pas de mener une critique globale du NPM

Paris-Sud XI, Université de

310

Espaces Socits et Territoires Participation des lus C aux comits de visite des laboratoires par l'AERES  

E-Print Network [OSTI]

des laboratoires par l'AERES La section 39 du comité national, lors de sa première réunion du nouveau dans chaque comité de visite AERES un membre élu C de la section compétente du comité national. Les

van Tiggelen, Bart

311

Aspects qualitatifs de la digestion intestinale des glucides d'un tourteau de soja par le veau prruminant  

E-Print Network [OSTI]

Aspects qualitatifs de la digestion intestinale des glucides d'un tourteau de soja par le veau préruminant J. M. BESLE P. THIVEND Laboratoire de la Digestion des Ruminants, 1. N. R. A., Theix, Saint-Genès-Champanelle, 63110 Beaumonf, France. Summary. Qualitative aspects of intestinal digestion of soya carbohydrates

Boyer, Edmond

312

Dosage de la lignine insoluble en milieu acide : influence du prtraitement par hydrolyse acide sur la lignine Kla-  

E-Print Network [OSTI]

Dosage de la lignine insoluble en milieu acide : influence du prétraitement par hydrolyse acide sur la lignine Kla- son de bois et de paille Bernard MONTIES LN.R.A., Laboratoire de Chimie biologique et la lignine insoluble dans l'acide sulfurique concentré, lignine Klason, est décrit : il comporte une

Paris-Sud XI, Université de

313

Parmeeth "Par" Atwal, FULD FELLOW, Cohort 2 My Fuld project at the Johns Hopkins Armstrong Institute for Patient Safety and Quality,  

E-Print Network [OSTI]

Parmeeth "Par" Atwal, FULD FELLOW, Cohort 2 My Fuld project at the Johns Hopkins Armstrong and beta testing an online patient safety certification program that the Armstrong Institute is developing

von der Heydt, Rüdiger

314

CALiPER Report 20.1: Subjective Evaluation of Beam Quality, Shadow Quality, and Color Quality for LED PAR38 Lamps  

Broader source: Energy.gov [DOE]

This December 3, 2013 webinar explored the findings of CALiPER 20.1: Subjective Evaluation of Beam Quality, Shadow Quality, and Color Quality for LED PAR38 Lamps and discussed what attributes to...

315

OFFRE D'EMPLOI Le Conservatoire botanique national du Massif central est un tablissement public, agr par le Ministre  

E-Print Network [OSTI]

-Loire, du Parc naturel régional Livradois-Forez, du Syndicat mixte d'aménagement territorial du Haut botanique national définies par l'article L414-10 du code de l'environnement comme suit : Contribuer, dans code de l'environnement dans la mesure compatible avec le respect des habitats et des espèces et

316

Maroc, terre d'origines... Cette exposition a t produite par le Centre de Documentation et de Recherche Archologique  

E-Print Network [OSTI]

Maroc, terre d'origines... Cette exposition a été produite par le Centre de Documentation et de Recherche Archéologique Départemental (CDERAD), avec le concours du Commissariat Général du Temps du Maroc en France et du Service de Coopération et d'Action Culturelle de l'Ambassade de France au Maroc, et

Paris-Sud XI, Université de

317

Sonie directionnelle en basse frquence Effet sur des sons purs latraliss uniquement par des diffrences de temps  

E-Print Network [OSTI]

Sonie directionnelle en basse fréquence Effet sur des sons purs latéralisés uniquement par des varie elle aussi en fonction de l'azimut. Ce phénomène est connu en tant que sonie directionnelle et variation de sonie observée pour différents azimuts était supérieure à ce qui pouvait être attendu des

Paris-Sud XI, Université de

318

La distribution d'automobiles neuves en Europe est rgie par un rglement d'exemption aux rgles de la  

E-Print Network [OSTI]

La distribution d'automobiles neuves en Europe est régie par un règlement d'exemption aux règles de contexte, les concessionnaires doivent repenser leur métier de distributeurs automobiles pour transformer les menaces en opportunités. Les spéculations sur l'avenir du système de la distribution automobile en

Paris-Sud XI, Université de

319

TUDE DE L'ABSORPTION ULTRAVIOLETTE DU SULFURE DE CARBONE Par Mlles ODETTE AMIOT et HENRIETTE MARSAC.  

E-Print Network [OSTI]

dilué de plus en plus le sulfure de carbone dans un solvant inactif. Nous avons choisi l'hexane, liquide montage par autocollimation. 2. Purification du sulfure de carbone et prépa- ration des solutions. - On sait que le sulfure de car- bone est un liquide altérable et qu'il se décompose à la lumière avec

Boyer, Edmond

320

L'approche par les capacits et le travail Robert Salais (IDHE-ENS Cachan, Centre Marc Bloch, Berlin)  

E-Print Network [OSTI]

théorique, mis en oeuvre et approfondis par Amartya Sen depuis les années 1980. L'effort consiste à engager une revisite du domaine du travail à partir de ces recherches d'Amartya Sen, entreprise à laquelle européens depuis le début des années 20003. Mon propos n'est pas d'appliquer Sen, mais de développer une

Paris-Sud XI, Université de

Note: This page contains sample records for the topic "aluminized reflector par" 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

[)r PAR1 rMF.Nr o Dr (.FIrMr( A .IF]CNC)I,OGIi,  

E-Print Network [OSTI]

[)r PAR1 rMF.Nr o Dr (.FIrMr( A E .IF]CNC)I,OGIi, f)Ã?]I I-ARMACo @ ;^.*r.l-EN,.m BANDO Dl SELEZIONE n. 17 PER lL CONFERIMENTO Dt N. 1 ASSEGNO PER LO SVOLGIMENTO Dl ATTIVITA DI RICERCA DI CATEGORIA B riunita la Commissione esaminatrice per il bando di selezione n. 17 relativo al conferimento di n. 1

Guidoni, Leonardo

322

JOURNAL DE PHYSIQUE Colloytte Cl, supple'ment au 110 1, Tome 35, Janvier 1974, page Cl-81 TUDE PAR EFFET MOSSBAUER DE FERRITES  

E-Print Network [OSTI]

EFFET MOSSBAUER DE FERRITES DE NICKEL-FER NON ST(ECHIOM�TRIQUES : INFLUENCE DE L'ORDRE DIRECTIONNEL L'ordre directionnel qui se forme dans les ferrites par suite de répartitions anisotropes des ions Fez+par rapport à la direction locale de l'aimantation. L'étude a porté sur des ferrites de composition (0= lacunes), O

Boyer, Edmond

323

Influence de l'aluminium sur l'absorption du phosphore par le riz (Oryza sativa L.) et sur celle de l'azote en prsence  

E-Print Network [OSTI]

Influence de l'aluminium sur l'absorption du phosphore par le riz (Oryza sativa L.) et sur celle de l'absorption de l'azote et du phosphore en fonction de doses croissantes d'alu- minium par des 35 pM d'aluminium, la diminution de l'absorption du phosphore est très marquée, ainsi que celle de l

Boyer, Edmond

324

MESURE DU TEMPS MORT D'UN COMPTEUR G. M. ET DE L'MISSION SECONDAIRE DE LA CATHODE PAR LA MTHODE DES CONCIDENCES RETARDES  

E-Print Network [OSTI]

'amplitude voisine de l'amplitude maximum Amax, et à observer sur l'écran du tube cathodique le diagramme des impulsions qui la suivent. L'oscillogramme obtenu est représenté par la figure r . On constate que ce Fig. 1 déclenché par des impulsions d'amplitude voisine de l'amplitude maximum Amax. Tm représente le temps mort et

Boyer, Edmond

325

TUDE DES CIBLES MINCES CHARGES DE TRITIUM UTILISES DANS LES ACCLRATEURS PRODUISANT DES NEUTRONS RAPIDES PAR LA RACTION D-T  

E-Print Network [OSTI]

61 �TUDE DES CIBLES MINCES CHARG�ES DE TRITIUM UTILIS�ES DANS LES ACC�L�RATEURS PRODUISANT DES [titane-tritium]préparées par le Département des Radioéléments de Saclay. Dix sept cibles ont été ainsi rendement. Abstract. 2014 This study permits the determination of the efficiency of titan-tritium targets

Paris-Sud XI, Université de

326

CALiPER Report 20.3: Robustness of LED PAR38 Lamps  

SciTech Connect (OSTI)

Three samples of 40 of the Series 20 PAR38 lamps underwent multi-stress testing, whereby samples were subjected to increasing levels of simultaneous thermal, humidity, electrical, and vibrational stress. The results do not explicitly predict expected lifetime or reliability, but they can be compared with one another, as well as with benchmark conventional products, to assess the relative robustness of the product designs. On average, the 32 LED lamp models tested were substantially more robust than the conventional benchmark lamps. As with other performance attributes, however, there was great variability in the robustness and design maturity of the LED lamps. Several LED lamp samples failed within the first one or two levels of the ten-level stress plan, while all three samples of some lamp models completed all ten levels. One potential area of improvement is design maturity, given that more than 25% of the lamp models demonstrated a difference in failure level for the three samples that was greater than or equal to the maximum for the benchmarks. At the same time, the fact that nearly 75% of the lamp models exhibited better design maturity than the benchmarks is noteworthy, given the relative stage of development for the technology.

Poplawski, Michael E.; Royer, Michael P.; Brown, Charles C.

2014-12-31T23:59:59.000Z

327

PaR Tensile Truss for Nuclear Decontamination and Decommissioning - 12467  

SciTech Connect (OSTI)

Remote robotics and manipulators are commonly used in nuclear decontamination and decommissioning (D and D) processes. D and D robots are often deployed using rigid telescoping masts in order to apply and counteract side loads. However, for very long vertical reaches (15 meters or longer) and high lift capacities, a telescopic is usually not practical due to the large cross section and weight required to make the mast stiff and resist seismic forces. For those long vertical travel applications, PaR Systems has recently developed the Tensile Truss, a rigid, hoist-driven 'structure' that employs six independent wire rope hoists to achieve long vertical reaches. Like a mast, the Tensile Truss is typically attached to a bridge-mounted trolley and is used as a platform for robotic manipulators and other remotely operated tools. For suspended, rigid deployment of D and D tools with very long vertical reaches, the Tensile Truss can be a better alternative than a telescoping mast. Masts have length limitations that can make them impractical or unworkable as lengths increase. The Tensile Truss also has the added benefits of increased safety, ease of decontamination, superior stiffness and ability to withstand excessive side loading. A Tensile Truss system is currently being considered for D and D operations and spent fuel recovery at the Fukushima Daiichi Nuclear Power Plant in Japan. This system will deploy interchangeable tools such as underwater hydraulic manipulators, hydraulic shears and crushers, grippers and fuel grapples. (authors)

Doebler, Gary R. [PaR Systems Inc., 707 County Road E West, Shoreview, MN 55126 (United States)

2012-07-01T23:59:59.000Z

328

Insulino-scrtion en rponse au glucose et l'arginine partir de pancras isol et perfus de lapins tmoins et prdiabtiques, par Franoise FICHAUX, J. CATALA,Franoise FICHAUX, J. CATALA,  

E-Print Network [OSTI]

lapins témoins et prédiabétiques, par Françoise FICHAUX, J. CATALA,Françoise FICHAUX, J. CATALA, R

Paris-Sud XI, Université de

329
330

A Study of Contacts and Back-Surface Reflectors for 0.6eV Ga0.32In0.68As/InAs0.32P0.68 Thermophotovoltaic Monolithically Interconnected Modules  

SciTech Connect (OSTI)

Thermophotovoltaic (TPV) systems have recently rekindled a high level of interest for a number of applications. In order to meet the requirement of low-temperature ({approx}1000 C) TPV systems, 0.6-eV Ga0.32In0.68As/InAs0.32P0.68 TPV monolithically interconnected modules (MIMs) have been developed at the National Renewable energy Laboratory (NREL)[1]. The successful fabrication of Ga0.32In0.68As/InAs0.32P0.68 MIMs depends on developing and optimizing of several key processes. Some results regarding the chemical vapor deposition (CVD)-SiO2 insulating layer, selective chemical etch via sidewall profiles, double-layer antireflection coatings, and metallization via interconnects have previously been given elsewhere [2]. In this paper, we report on the study of contacts and back-surface reflectors. In the first part of this paper, Ti/Pd/Ag and Cr/Pd/Ag contact to n-InAs0.32P0.68and p-Ga0.32In0.68As are investigated. The transfer length method (TLM) was used for measuring of specific contact resistance Rc. The dependence of Rc on different doping levels and different pre-treatment of the two semiconductors will be reported. Also, the adhesion and the thermal stability of Ti/Pd/Ag and Cr/Pd/Ag contacts to n-InAs0.32P0.68and p-Ga0.32In0.68As will be presented. In the second part of this paper, we discuss an optimum back-surface reflector (BSR) that has been developed for 0.6-eV Ga0.32In0.68As/InAs0.32P0.68 TPV MIM devices. The optimum BSR consists of three layers: {approx}1300{angstrom} MgF2 (or {approx}1300{angstrom} CVD SiO2) dielectric layer, {approx}25{angstrom} Ti adhesion layer, and {approx}1500{angstrom} Au reflection layer. This optimum BSR has high reflectance, good adhesion, and excellent thermal stability.

Wu, X.; Duda, A.; Carapella, J. J.; Ward, J. S.; Webb, J. D.; Wanlass, M. W.

1998-12-23T23:59:59.000Z

331

Effect of the photon lifetime on the characteristics of 850-nm vertical-cavity surface-emitting lasers with fully doped distributed Bragg reflectors and an oxide current aperture  

SciTech Connect (OSTI)

The effect of the photon lifetime in an optical microcavity on the characteristics of 850-nm vertical-cavity surface-emitting lasers (VCSELs) with fully doped distributed Bragg reflectors (DBRs) and an oxide current aperture is studied. The photon lifetime in the microcavity is controlled by varying the upper DBR reflectance. It is found that the speed of VCSELs with a current-aperture diameter of 10 ?m is mainly limited by the self-heating effect, despite an increase in the relaxation-oscillation damping coefficient with increasing photon lifetime in the microcavity. At the same time, the higher level of internal optical loss in lasers with a current-aperture diameter of 1.5 ?m leads to dominance of the effect of relaxation-oscillation damping independently of the radiation output loss. In the case of devices with a current-aperture diameter of 5.5 ?m, both mechanisms limiting the speed operate, which allow an increase in the VCSEL effective modulation frequency from 21 to 24 GHz as the photon lifetime decreases from 3.7 to 0.8 ps.

Bobrov, M. A.; Blokhin, S. A., E-mail: blokh@mail.ioffe.ru; Kuzmenkov, A. G.; Maleev, N. A. [Russian Academy of Sciences, Ioffe Physical-Technical Institute (Russian Federation); Blokhin, A. A. [Saint Petersburg State Polytechnical University (Russian Federation); Zadiranov, Yu. M. [Russian Academy of Sciences, Ioffe Physical-Technical Institute (Russian Federation); Nikitina, E. V. [Russian Academy of Sciences, Saint Petersburg Academic University—Nanotechnology Research and Education Center (Russian Federation); Ustinov, V. M. [Russian Academy of Sciences, Ioffe Physical-Technical Institute (Russian Federation)

2014-12-15T23:59:59.000Z

332

Passivation de photodiodes pin en GaInAs par SiNx UVCVD Y. Le Bellgo, P. Blanconnier et J. P. Praseuth  

E-Print Network [OSTI]

941 Passivation de photodiodes pin en GaInAs par SiNx UVCVD Y. Le Bellégo, P. Blanconnier et J. P. 2014 Des films de SiNx ont été déposés à basse température par UVCVD pour la passivation de photodiodes courant de fuite n'a été observé sur les photodiodes pin de type mesa avant et après le dépôt de Si

Paris-Sud XI, Université de

333

LES REPRESENTATIONS DE L'ACCOMPAGNEMENT ET DE LA REMISE AU TRAVAIL DES CHOMEURS DANS LE RESEAU DE L'INSERTION PAR  

E-Print Network [OSTI]

social » dirigée par Alain Vilbrod, aux éditions l'Harmattan Il s'appuie sur un travail socio'insertion ?, �ditions l'harmattan (Ed.) (2008) 276" #12;2 2 traitement du chômage dans ce champ de l'insertion, il s

Boyer, Edmond

334

Article publi par le Laboratoire de Construction en Bton de l'EPFL Paper published by the Structural Concrete Laboratory of EPFL  

E-Print Network [OSTI]

by the Structural Concrete Laboratory of EPFL Article publié par le Laboratoire de Construction en Béton de l'EPFL Paper published by the Structural Concrete Laboratory of EPFL Title: Assessment of Shear Strength campaign carried out at Ecole Polytechnique Fédérale de Lausanne on 2 reinforced concrete girders and 10

Dalang, Robert C.

335

Article publi par le Laboratoire de Construction en Bton de l'EPFL Paper published by the Structural Concrete Laboratory of EPFL  

E-Print Network [OSTI]

by the Structural Concrete Laboratory of EPFL Article publié par le Laboratoire de Construction en Béton de l'EPFL Paper published by the Structural Concrete Laboratory of EPFL Title: Design for punching of prestressed concrete slabs Authors: Clément T., Ramos A.P., Fernández Ruiz M., Muttoni A. Published in: Structural

Dalang, Robert C.

336

Article publi par le Laboratoire de Construction en Bton de l'EPFL Paper published by the Structural Concrete Laboratory of EPFL  

E-Print Network [OSTI]

by the Structural Concrete Laboratory of EPFL Article publié par le Laboratoire de Construction en Béton de l'EPFL Paper published by the Structural Concrete Laboratory of EPFL Title: Background to the Model Code 2010. J., Sigrist V. Published in: Structural Concrete, Ernst & Sohn DOI 10.100 2 / suc o .2 012 00064

Dalang, Robert C.

337

Des six projets de recherche en concurrence, Graphene est l'un des deux slectionns par le programme FET (Future and emerging tech-  

E-Print Network [OSTI]

Des six projets de recherche en concurrence, Graphene est l'un des deux sélectionnés par le reconnu en nano-électronique et en matériaux et représentant suisse du projet Graphene (Graphene agship). Aujourd'hui l'Europe lance un projet de recherche d'une envergure sans précédent ( agship). Graphene

Halazonetis, Thanos

338

This paper has been published in Proceedings of Radiovetenskap och kommunikation 99 (RVK 99), pages 303307, Karlskrona, Sweden, June 1999. 303 DMT PAR-reduction by weighted  

E-Print Network [OSTI]

303­307, Karlskrona, Sweden, June 1999. 303 DMT PAR-reduction by weighted cancellation waveforms Per of Technology, Box 118, SE-22100 Lund, Sweden. E-mail: per.odling@tde.lth.se b NUHAG (Numerical Harmonic, SE-97187 Lule°a, Sweden. E-mail: grip@sm.luth.se d Telia Research AB, Aurorum 6, SE-97775 Lule

Feichtinger, Hans Georg

339

Comptes Rendus des JNC 17 -Poitiers 2011 Etude de la propagation sous critique dans les fibres de verre par relaxation de  

E-Print Network [OSTI]

de verre par relaxation de la charge Investigation of subcritical crack growth using load relaxation de vie a été établi et validé. Abstract Many inorganic fibers are sensitive to subcritical crack paper. The samples were immersed in water during the static fatigue tests. Crack velocity - stress

Boyer, Edmond

340

Estimation de la digestibilit de l'herbe pture par le mouton adulte au moyen de la lignine selon Christian. Essais prliminaires (1)  

E-Print Network [OSTI]

Estimation de la digestibilité de l'herbe pâturée par le mouton adulte au moyen de la lignine selon determined in grazing sheep by independent methods : nitrogen and lignin faecal indexes and by the lignin ratio technique (oesophageal fistulas). Lignin determined by Christian's method, was previously shown

Paris-Sud XI, Université de

Note: This page contains sample records for the topic "aluminized reflector par" 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

Article publi par le Laboratoire de Construction en Bton de l'EPFL Paper published by the Structural Concrete Laboratory of EPFL  

E-Print Network [OSTI]

concrete Stress fields Strut-and-tie modelling Testing a b s t r a c t The strength and deformation by the Structural Concrete Laboratory of EPFL Article publié par le Laboratoire de Construction en Béton de l'EPFL Paper published by the Structural Concrete Laboratory of EPFL Title: Behaviour of nodal regions

Dalang, Robert C.

342

Ultraviolet GaN photodetectors on Si via oxide buffer heterostructures with integrated short period oxide-based distributed Bragg reflectors and leakage suppressing metal-oxide-semiconductor contacts  

SciTech Connect (OSTI)

Based on a novel double step oxide buffer heterostructure approach for GaN integration on Si, we present an optimized Metal-Semiconductor-Metal (MSM)-based Ultraviolet (UV) GaN photodetector system with integrated short-period (oxide/Si) Distributed Bragg Reflector (DBR) and leakage suppressing Metal-Oxide-Semiconductor (MOS) electrode contacts. In terms of structural properties, it is demonstrated by in-situ reflection high energy electron diffraction and transmission electron microscopy-energy dispersive x-ray studies that the DBR heterostructure layers grow with high thickness homogeneity and sharp interface structures sufficient for UV applications; only minor Si diffusion into the Y{sub 2}O{sub 3} films is detected under the applied thermal growth budget. As revealed by comparative high resolution x-ray diffraction studies on GaN/oxide buffer/Si systems with and without DBR systems, the final GaN layer structure quality is not significantly influenced by the growth of the integrated DBR heterostructure. In terms of optoelectronic properties, it is demonstrated that—with respect to the basic GaN/oxide/Si system without DBR—the insertion of (a) the DBR heterostructures and (b) dark current suppressing MOS contacts enhances the photoresponsivity below the GaN band-gap related UV cut-off energy by almost up to two orders of magnitude. Given the in-situ oxide passivation capability of grown GaN surfaces and the one order of magnitude lower number of superlattice layers in case of higher refractive index contrast (oxide/Si) systems with respect to classical III-N DBR superlattices, virtual GaN substrates on Si via functional oxide buffer systems are thus a promising robust approach for future GaN-based UV detector technologies.

Szyszka, A., E-mail: szyszka@ihp-microelectronics.com, E-mail: adam.szyszka@pwr.wroc.pl [IHP, Im Technologiepark 25, 15236 Frankfurt (Oder) (Germany); Faculty of Microsystem Electronics and Photonics, Wroclaw University of Technology, Janiszewskiego 11/17, 50-372 Wroclaw (Poland); Lupina, L.; Lupina, G.; Schubert, M. A.; Zaumseil, P. [IHP, Im Technologiepark 25, 15236 Frankfurt (Oder) (Germany); Haeberlen, M.; Storck, P.; Thapa, S. B. [Siltronic, Hanns-Seidel-Platz 4, 81737 München (Germany); Schroeder, T. [IHP, Im Technologiepark 25, 15236 Frankfurt (Oder) (Germany); BTU Cottbus-Senftenberg, Konrad-Zuse-Strasse 1, 03046 Cottbus (Germany)

2014-08-28T23:59:59.000Z

343

Method of making terbium activated yttrium aluminate phosphor  

SciTech Connect (OSTI)

This patent describes the method of making Y/sub 3/Al/sub 5/O/sub 12/:Tb phosphor, the method comprising: (a) forming a uniform mixture of source materials for Y/sub 3/Al/sub 5/O/sub 12/:Tb phosphor and barium fluoride with the barium fluoride being present in the mixture at a level of from about 0.254 to about 0.761 weight percent; and (b) firing the mixture at an elevated temperature to react the source materials to form Y/sub 3/Al/sub 5/O/sub 12/:Tb phosphor having an improved brightness of at least about 7.5% over the phosphor prepared as above the absent barium fluoride, with the 50% size of the phosphor prepared as above with BaF/sub 2/ as measured by Coulter Counter technique being from about 5 to about 7 micrometers in diameter and with from about 1% to about 6% of the phosphor having a size of greater than about 20 micrometers in diameter.

Kasenga, A.F.; Dann, J.N.

1988-08-09T23:59:59.000Z

344

Synthesis and use of (perfluoroaryl) fluoro-aluminate anion  

DOE Patents [OSTI]

A trityl perfluorophenyl alumninate such as tris(2,2',2"-nonafluorobiphenyl)-fluoroaluminate (PBA.sup..crclbar.) and its role as a cocatalyst in metallocene-mediated olefin polymerization is disclosed. Gallium and indium analogs are also disclosed, as are analogs with different anyl groups or different numbers of flourine atoms thereon.

Marks, Tobin J. (Evanston, IL); Chen, You-Xian (Midland, MI)

2001-01-01T23:59:59.000Z

345

aluminate determinacion espectrografia: Topics by E-print Network  

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

Zone Physics Websites Summary: -rich coatings, along with the more soluble precipitated uranyl carbonates and uranophane, likely control) in the 300 Area included Cu (50 tons),...

346

Synthesis and use of (perfluoroaryl) fluoro-aluminate anion  

DOE Patents [OSTI]

A trityl perfluorophenyl alumninate such as tris(2,2{prime},2{double_prime}nonafluorobiphenyl) fluoroaluminate (PBA{sup {minus}}) and its role as a cocatalyst in metallocene-mediated olefin polymerization is disclosed. 4 figs.

Marks, T.J.; Chen, Y.X.

1998-12-29T23:59:59.000Z

347

Copper Aluminate as a potential material for high temperature  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsruc DocumentationP-Series to User GroupInformationE-Gov ContactsContractOfficeCoolWhy

348

Calcium Hexa Aluminate Linings for Alkaline Environments - Energy  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: Vegetation Proposed New Substation Sites Proposed Route BTRICGEGR-N GoodsMexico's Energy ReformWallace

349

DOE CALiPER Program, Report 20.1 Subjective Evaluation of Beam Quality, Shadow Quality, and Color Quality for LED PAR38 Lamps  

SciTech Connect (OSTI)

This report focuses on human-evaluated characteristics, including beam quality, shadow quality, and color quality. Using a questionnaire that included rank ordering, opinions on 27 of the Report 20 PAR38 lamps were gathered during a demonstration event for members of the local Illuminating Engineering Society (IES) chapter. This was not a rigorous scientific experiment, and the data should not be extrapolated beyond the scope of the demonstration. The results suggest that many of the LED products compared favorably to halogen PAR38 benchmarks in all attributes considered. LED lamps using a single-emitter design were generally preferred for their beam quality and shadow quality, and the IES members ranking of color quality did not always match the rank according to the color rendering index (CRI).

Royer, Michael P.; Poplawski, Michael E.; Miller, Naomi J.

2013-10-01T23:59:59.000Z

350

Optical Reflectance Measurements for Commonly Used Reflectors  

E-Print Network [OSTI]

AC02-05CH11231, grant number NNSA LB06-316-PD05 / NN2001000.AC02-05CH11231, grant number NNSA LB06-316-PD05 / NN2001000.

Janecek, Petr Martin

2009-01-01T23:59:59.000Z

351

Ideal light concentrators with reflector gaps  

SciTech Connect (OSTI)

A cylindrical or trough-like radiant energy concentration and collection device is provided. The device includes an energy absorber, a glazing enveloping the absorber and a reflective wall. The ideal contour of the reflective wall is determined with reference to a virtual absorber and not the actual absorber cross section.

Winston, R.

1980-10-28T23:59:59.000Z

352

Solar module having reflector between cells  

DOE Patents [OSTI]

A photovoltaic module comprising an array of electrically interconnected photovoltaic cells disposed in a planar and mutually spaced relationship between a light-transparent front cover member in sheet form and a back sheet structure is provided with a novel light-reflecting means disposed between adjacent cells for reflecting light falling in the areas between cells back toward said transparent cover member for further internal reflection onto the solar cells. The light-reflecting comprises a flexible plastic film that has been embossed so as to have a plurality of small V-shaped grooves in its front surface, and a thin light-reflecting coating on said front surface, the portions of said coating along the sides of said grooves forming light-reflecting facets, said grooves being formed so that said facets will reflect light impinging thereon back into said transparent cover sheet with an angle of incidence greater than the critical angle, whereby substantially all of the reflected light will be internally reflected from said cover sheet back to said solar modules, thereby increasing the current output of the module.

Kardauskas, Michael J. (Billerica, MA)

1999-01-01T23:59:59.000Z

353

Correlated-Intensity velocimeter for Arbitrary Reflector  

DOE Patents [OSTI]

A velocimetry apparatus and method comprising splitting incoming reflected laser light and directing the laser light into first and second arms, filtering the laser light with passband filters in the first and second arms, one having a positive passband slope and the other having a negative passband slope, and detecting the filtered laser light via light intensity detectors following the passband filters in the first and second arms

Wang, Zhehui (Los Alamos, NM); Luo, Shengnian (Los Alamos, NM); Barnes, Cris W. (Arlington, VA); Paul, Stephen F. (West Orange, NJ)

2008-11-11T23:59:59.000Z

354

Optical Reflectance Measurements for Commonly Used Reflectors  

E-Print Network [OSTI]

by the National Nuclear Security Administration, Office ofby the National Nuclear Security Administration, Office of

Janecek, Petr Martin

2009-01-01T23:59:59.000Z

355

Ideal light concentrators with reflector gaps  

SciTech Connect (OSTI)

A cylindrical or trough-like radiant energy concentration and collection device is provided. The device includes an energy absorber, a glazing enveloping the absorber and a reflective wall. The ideal contour of the reflective wall is determined with reference to a virtual absorber and not the actual absorber cross section.

Winston, Roland (Chicago, IL)

1980-01-01T23:59:59.000Z

356

The Sandia Wave Reflector - Energy Innovation Portal  

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

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357

Sandia National Laboratories: compact linear Fresnel reflector  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the1development Sandia, NREL Releasehy-drogen power Portablecombustion simulationcompact

358

Sandia National Laboratories: Compact Linear Fesnel Reflector  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the1 -the Mid-Infrared0Energy AdvancedEnergyEnergyMappingCombustionBiofuels OnWindCompact

359

17 `eme Congr`es Francais de Mecanique Troyes, septembre 2005 Optimisation aerodynamique par mod`ele reduit POD et methode `a region  

E-Print Network [OSTI]

under rotary control of the cylinder wake in the laminar regime. The optimization problem is solved (CPU, m´emoire) li´es `a la r´esolution des probl`emes d'optimisation sont tellement importants que proposons de r´esoudre le probl`eme d'optimisation associ´e au contr^ole d'´ecoulement par une m´ethode de

Bergmann, Michel

360

L'valuation des consquences de dcisions stratgiques en levage extensif en Uruguay. Une approche par les systmes multi-agents.  

E-Print Network [OSTI]

L'évaluation des conséquences de décisions stratégiques en élevage extensif en Uruguay. Une extensif en Uruguay Une approche par les systèmes multi-agents. Doctorat d'Ingénieur soutenu le 12 octobre-6Jul2011 #12;L'évaluation des conséquences de décisions stratégiques en élevage extensif en Uruguay

Paris-Sud XI, Université de

Note: This page contains sample records for the topic "aluminized reflector par" 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

SPECTROMTRE 03B1 A SCINTILLATION AVEC I Cs(Tl) Par J. FLEURY, P. PERRIN, M. BOGE et J. LAUGIER,  

E-Print Network [OSTI]

480. SPECTROMÈTRE 03B1 A SCINTILLATION AVEC I Cs(Tl) Par J. FLEURY, P. PERRIN, M. BOGE et J 03B1 de 9 MeV. Abstract. 2014 In spectrometry with CsI(Tl) crystals the following characteristicsV with NaI). The best resolution in spectrometry 03B1 is 2.5 % with 9 MeV 03B1-particles. LE .IOURNAL DE

Paris-Sud XI, Université de

362

Rsum --L'industrie automobile est aujourd'hui caractrise par la varit des produits proposs, le cycle de vie toujours plus  

E-Print Network [OSTI]

Résumé -- L'industrie automobile est aujourd'hui caractérisée par la variété des produits proposés constructeur automobile PSA Peugeot Citroën, permettant de mettre en évidence et d'évaluer les impacts globaux, Chaîne logistique, Production automobile. I. CONTEXTE INDUSTRIEL ET PROBLEMATIQUE A. Caractéristiques de

Paris-Sud XI, Université de

363

SUR LA VARIT DES TATS VIBRATOIRES D'UN CYLINDRE CREUX DE QUARTZ Par NY TSI-Z et CHUNG MING-SAN.  

E-Print Network [OSTI]

illustrés par des figures de Chladni. 1. Introduction. - Nous avons constaté qu'un cylindre creux de quartz figures de Chladni, obtenues avee de la poudre de lycopode, sur l'extrémité supérieure du cylindre qui est longueur de quelques-uns de ces cylindres, Une fignre déterminée de Chladni caractérise sûre- ment un même

Paris-Sud XI, Université de

364

DuraLamp USA: Order (2010-CE-0912)  

Broader source: Energy.gov [DOE]

DOE ordered DuraLamp USA, Inc. to pay a $2,500 civil penalty after finding DuraLamp USA had failed to certify that model PAR 30, an incandescent reflector lamp, complies with the applicable energy conservation standards.

365

prsente par Guillaume Lodier  

E-Print Network [OSTI]

CAI/HCCI Membres du jury : Rapporteurs : Bénédicte Cuenot Chercheur Senior, CERFACS, Toulouse Dirk'auto-inflammation apr`es compression rapide d'un m´elange turbulent r´eactif - Application au contexte CAI/HCCI La strat est l'essence et HCCI, lorsqu'il s'agit de Diesel) s'int`egre dans une d´emarche de r´eduction des

Paris-Sud XI, Université de

366

prsente par Blandine Romain  

E-Print Network [OSTI]

Search Collections Journals About Contact us My IOPscience #12;IOP PUBLISHING SMART MATERIALS-SSHI with comparisons to other interfacing circuits in piezoelectric energy harvesting I C Lien1 , Y C Shu1,3 , W J Wu2

Paris-Sud XI, Université de

367

prsente par Peggy Provent  

E-Print Network [OSTI]

'origine de ce travail. C'est aussi elle qui m'a encadrée à mon arrivée dans le laboratoire et m'a donné gout

Boyer, Edmond

368

Prsente par Grgory VERNIER  

E-Print Network [OSTI]

Conformationnelle et Versatilité des Interactions Protéines-Lipides Cas d'étude de l'-lactalbumine et de l'apo Rapporteur Dr. Bruno ANTONNY Rapporteur Pr. James STURGIS Examinateur Dr. Daniel GILLET Examinateur Dr Protéines-Lipides Cas d'étude de l'-lactalbumine et de l'apo-myoglobine Résumé : Certaines protéines

Paris-Sud XI, Université de

369

ARM - Datastreams - pars2  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcal Documentation Data Quality PlotsDatastreamsncepgfszprof Documentation

370

PAR Pond N Roads  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the1 - September 2006 The 2002Optics GroupPlanningP-GlycoproteinAmmonia¯ R ¯bONTRACTPAR

371

ZPR-3 Assembly 11 : A cylindrical sssembly of highly enriched uranium and depleted uranium with an average {sup 235}U enrichment of 12 atom % and a depleted uranium reflector.  

SciTech Connect (OSTI)

Over a period of 30 years, more than a hundred Zero Power Reactor (ZPR) critical assemblies were constructed at Argonne National Laboratory. The ZPR facilities, ZPR-3, ZPR-6, ZPR-9 and ZPPR, were all fast critical assembly facilities. The ZPR critical assemblies were constructed to support fast reactor development, but data from some of these assemblies are also well suited for nuclear data validation and to form the basis for criticality safety benchmarks. A number of the Argonne ZPR/ZPPR critical assemblies have been evaluated as ICSBEP and IRPhEP benchmarks. Of the three classes of ZPR assemblies, engineering mockups, engineering benchmarks and physics benchmarks, the last group tends to be most useful for criticality safety. Because physics benchmarks were designed to test fast reactor physics data and methods, they were as simple as possible in geometry and composition. The principal fissile species was {sup 235}U or {sup 239}Pu. Fuel enrichments ranged from 9% to 95%. Often there were only one or two main core diluent materials, such as aluminum, graphite, iron, sodium or stainless steel. The cores were reflected (and insulated from room return effects) by one or two layers of materials such as depleted uranium, lead or stainless steel. Despite their more complex nature, a small number of assemblies from the other two classes would make useful criticality safety benchmarks because they have features related to criticality safety issues, such as reflection by soil-like material. ZPR-3 Assembly 11 (ZPR-3/11) was designed as a fast reactor physics benchmark experiment with an average core {sup 235}U enrichment of approximately 12 at.% and a depleted uranium reflector. Approximately 79.7% of the total fissions in this assembly occur above 100 keV, approximately 20.3% occur below 100 keV, and essentially none below 0.625 eV - thus the classification as a 'fast' assembly. This assembly is Fast Reactor Benchmark No. 8 in the Cross Section Evaluation Working Group (CSEWG) Benchmark Specificationsa and has historically been used as a data validation benchmark assembly. Loading of ZPR-3 Assembly 11 began in early January 1958, and the Assembly 11 program ended in late January 1958. The core consisted of highly enriched uranium (HEU) plates and depleted uranium plates loaded into stainless steel drawers, which were inserted into the central square stainless steel tubes of a 31 x 31 matrix on a split table machine. The core unit cell consisted of two columns of 0.125 in.-wide (3.175 mm) HEU plates, six columns of 0.125 in.-wide (3.175 mm) depleted uranium plates and one column of 1.0 in.-wide (25.4 mm) depleted uranium plates. The length of each column was 10 in. (254.0 mm) in each half of the core. The axial blanket consisted of 12 in. (304.8 mm) of depleted uranium behind the core. The thickness of the depleted uranium radial blanket was approximately 14 in. (355.6 mm), and the length of the radial blanket in each half of the matrix was 22 in. (558.8 mm). The assembly geometry approximated a right circular cylinder as closely as the square matrix tubes allowed. According to the logbook and loading records for ZPR-3/11, the reference critical configuration was loading 10 which was critical on January 21, 1958. Subsequent loadings were very similar but less clean for criticality because there were modifications made to accommodate reactor physics measurements other than criticality. Accordingly, ZPR-3/11 loading 10 was selected as the only configuration for this benchmark. As documented below, it was determined to be acceptable as a criticality safety benchmark experiment. A very accurate transformation to a simplified model is needed to make any ZPR assembly a practical criticality-safety benchmark. There is simply too much geometric detail in an exact (as-built) model of a ZPR assembly, even a clean core such as ZPR-3/11 loading 10. The transformation must reduce the detail to a practical level without masking any of the important features of the critical experiment. And it must do this without increasing the total uncertain

Lell, R. M.; McKnight, R. D.; Tsiboulia, A.; Rozhikhin, Y.; National Security; Inst. of Physics and Power Engineering

2010-09-30T23:59:59.000Z

372

MESURE DE .LATEMPERA'NRE IONIQUE DU PLASMA FOCUS PAR DIFFUSION THOMON VERS L'AVANT A. Bernard, A. Coudeville, A. Jolas, J. de Mascureau, J.P. Watteau  

E-Print Network [OSTI]

MESURE DE .LATEMPERA'NRE IONIQUE DU PLASMA FOCUS PAR DIFFUSION THOM�ON VERS L'AVANT A. Bernard, A spectres obtenus sont comparés aux résultats théoriques de Salpeter. The plasma Focus is studied by means

Paris-Sud XI, Université de

373

A study of contacts and back-surface reflectors for 0.6-eV Ga{sub 0.32}In{sub 0.68}As/InAs{sub 0.32}P{sub 0.68} thermophotovoltaic monolithically interconnected modules  

SciTech Connect (OSTI)

Thermophotovoltaic (TPV) systems have recently rekindled a high level of interest for a number of applications. In order to meet the requirement of low-temperature ({approximately}1000&hthinsp;{degree}C) TPV systems, 0.6-eV Ga{sub 0.32}In{sub 0.68}As/InAs{sub 0.32}P{sub 0.68} TPV monolithically interconnected modules (MIMs) have been developed at the National Renewable energy Laboratory (NREL) [1]. The successful fabrication of Ga{sub 0.32}In{sub 0.68}As/InAs{sub 0.32}P{sub 0.68} MIMs depends on developing and optimizing of several key processes. Some results regarding the chemical vapor deposition (CVD)-SiO{sub 2} insulating layer, selective chemical etch via sidewall profiles, double-layer antireflection coatings, and metallization via interconnects have previously been given elsewhere [2]. In this paper, we report on the study of contacts and back-surface reflectors. In the first part of this paper, Ti/Pd/Ag and Cr/Pd/Ag contact to n-InAs{sub 0.32}P{sub 0.68} and p-Ga{sub 0.32}In{sub 0.68}As are investigated. The transfer length method (TLM) was used for measuring of specific contact resistance R{sub c}. The dependence of R{sub c} on different doping levels and different pre-treatment of the two semiconductors will be reported. Also, the adhesion and the thermal stability of Ti/Pd/Ag and Cr/Pd/Ag contacts to n-InAs{sub 0.32}P{sub 0.68} and p-Ga{sub 0.32}In{sub 0.68}As will be presented. In the second part of this paper, we discuss an optimum back-surface reflector (BSR) that has been developed for 0.6-eV Ga{sub 0.32}In{sub 0.68}As/InAs{sub 0.32}P{sub 0.68} TPV MIM devices. The optimum BSR consists of three layers: {approximately}1300 {Angstrom} MgF{sub 2} (or {approximately}1300 {Angstrom} CVD SiO{sub 2}) dielectric layer, {approximately}25 {Angstrom} Ti adhesion layer, and {approximately}1500 {Angstrom} Au reflection layer. This optimum BSR has high reflectance, good adhesion, and excellent thermal stability. {copyright} {ital 1999 American Institute of Physics.}

Wu, X.; Duda, A.; Carapella, J.J.; Ward, J.S.; Webb, J.D.; Wanlass, M.W. [National Renewable Energy Laboratory, Golden, Colorado 80401 (United States)

1999-03-01T23:59:59.000Z

374

Chimie du vivant et pour le vivant : conception et proprits de molcules d'intrt biologique Participation des lus C aux comits de visite des laboratoires par l'AERES  

E-Print Network [OSTI]

'intérêt biologique Motion : Participation des élus C aux comités de visite des laboratoires par l'AERES La section 16 direction du CNRS d'agir auprès de l'AERES pour que soit intégré systématiquement dans les comités de visite de l'INC: Régis REAU -Président de l'AERES : Didier HOUSSIN -Directeur de la section des unités de

van Tiggelen, Bart

375

Development of Advanced Polymeric Reflector for CSP Applications - Final Report  

SciTech Connect (OSTI)

This project attempted to deposit extremely thick and dense protective barrier onto a mirror film stack with a PET substrate. The target thickness was very high for thin film products; particularly since large areas and long production lengths of film are needed to make the final product economic. The technical investigations in this project centered on maintaining a quality barrier (i.e. dense film) while evaporating alumina with a high deposition rate onto a low cost PET substrate. The project found that the proposed configuration, particularly direct ion bombardment, provides too narrow a solution space to effectively and economically produce the ASRM attempted. The initial project goals were met when depositing on a limited width and at a modest rate. However, expanding to wide deposition at aggressive deposition rates did not produce consistent film quality. Economic viability drives the process to maximize deposition rate. The current system configuration has a limiting upper rate threshold that does not appear economically viable. For future work, alternate approaches seem needed to address the challenges encountered in the scale-up phase of this project.

Treglio, Richard, T; Boyle, Keith, A; Henderson, Hildie

2013-03-28T23:59:59.000Z

376

Code division multiple access signaling for modulated reflector technology  

DOE Patents [OSTI]

A method and apparatus for utilizing code division multiple access in modulated reflectance transmissions comprises the steps of generating a phase-modulated reflectance data bit stream; modifying the modulated reflectance data bit stream; providing the modified modulated reflectance data bit stream to a switch that connects an antenna to an infinite impedance in the event a "+1" is to be sent, or connects the antenna to ground in the event a "0" or a "-1" is to be sent.

Briles, Scott D. (Los Alamos, NM)

2012-05-01T23:59:59.000Z

377

Enhancing cholesteric liquid crystal laser performance using a cholesteric reflector  

E-Print Network [OSTI]

laser based on a free- standing film of photo polymerized cholesteric liquid crystal," Appl. Phys. Lett as an optic fiber-based temperature sensor," Appl. Phys. Lett. 85, 2691-2693 (2004). 15. Y. Huang, Y. Zhou

Wu, Shin-Tson

378

Convection venting lensed reflector-type compact fluorescent lamp system  

DOE Patents [OSTI]

Disclosed herein is a fluorescent lamp housing assembly capable of providing convection cooling to the lamp and the ballast. The lens of the present invention includes two distinct portions, a central portion and an apertured portion. The housing assembly further includes apertures so that air mass is able to freely move up through the assembly and out ventilation apertures. 12 figs.

Pelton, B.A.; Siminovitch, M.

1997-07-29T23:59:59.000Z

379

Optical and Mechanical Effects of Elastomeric Distributed Bragg Reflectors  

E-Print Network [OSTI]

.59) will give the true stress t: t1 = t2 = F A = piR2?P 2piRH = R?P 2H . (2.60) Equation 2.60 can be used to analyse the stress and strain of spherical balloons, or of any thin membrane/wall with a spherical curvature under pressure difference, including boilers...

Kamita, Gen

2014-05-27T23:59:59.000Z

380

Advanced Manufacture of Reflectors- FY12 Q4  

Broader source: Energy.gov [DOE]

This document summarizes the progress of this University of Arizona project, funded by SunShot, for the fourth quarter of fiscal year 2012.

Note: This page contains sample records for the topic "aluminized reflector par" 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

Advanced Manufacture of Reflectors- FY13 Q1  

Broader source: Energy.gov [DOE]

This document summarizes the progress of this University of Arizona project, funded by SunShot, for the first quarter of fiscal year 2013.

382

The Effect of Reflectors and Delamping Upon Light Levels  

E-Print Network [OSTI]

performance from surface under a mark on the ceiling by use of a the fixtures present in each classroom. plumb-bob. In Room A-4, measurements were made from the same corner of the immovable student TEST DETAILS desks. suEUufS Meter CaKtu&&~ Errors... of the walls will vary with displays and decorations and may cause small variations in light level. Floors and ceilings were not a factor because desks were removed from the rooms when possible and no changes were made to the ceilings. Action: Lighting...

Pashkevich, P. A.

1989-01-01T23:59:59.000Z

383

Project Profile: Advanced Manufacture of Reflectors | Department of Energy  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious RankCombustion | Department ofT ib l L d FNEPA/309Department ofDepartmentProjectat High

384

Project Profile: Advanced Polymeric Reflector for CSP Applications |  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious RankCombustion | Department ofT ib l L d FNEPA/309Department ofDepartmentProjectat HighDepartment of

385

Project Profile: High Performance Reflector Panels for CSP Assemblies |  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious RankCombustion | Department ofT ib l L d FNEPA/309DepartmentDepartment of EnergyFlexibleSaltsDepartment

386

ESTADO DO PAR PODER JUDICIRIO  

E-Print Network [OSTI]

Avenida Almirante Barroso, nº 3.089, Bairro Souza, Belém/PA. DESEMBARGADORA RAIMUNDA DO CARMO GOMES

Maier, Rudolf Richard

387

ESTADO DO PAR PODER JUDICIRIO  

E-Print Network [OSTI]

Barroso, nº 3.089, Bairro Souza, Belém/PA, nas seguintes datas e horários, conforme convocação constante

Maier, Rudolf Richard

388

ESTADO DO PAR PODER JUDICIRIO  

E-Print Network [OSTI]

, situada no 1º andar do prédio sede, na Avenida Almirante Barroso, nº 3.089, Bairro Souza, Belém/PA. 1 Barroso, nº 3.089, Bairro Souza, Belém/PA. DESEMBARGADOR RONALDO MARQUES VALLE Presidente da Comissão do

Maier, Rudolf Richard

389

ESTADO DO PAR PODER JUDICIRIO  

E-Print Network [OSTI]

Vasconcelos / 10002455, Marcelo Soares Gomes / 10000739, Marcio Campos Barroso Rebello / 10000320, Marcos

Maier, Rudolf Richard

390

Par Jrmy LEBON Thse prsente  

E-Print Network [OSTI]

Polynomial Chaos Expansion (PCE) surrogates which require extensive training sets. We then face two issues numerical point of view and in order to limit the computational expense of the PCE construction we particularly focus on sparse PCE schemes. We also develop a custom Latin Hypercube Sampling scheme taking

Boyer, Edmond

391

Dlivre par Doctorat en cotutelle  

E-Print Network [OSTI]

, Langues, Sciences Humaines et Sociales INSTITUT AGRONOMIQUE ET VETERINAIRE HASSAN II Rabat-MAROC �cole d II Rabat (Maroc) directeur de thèse M. Michael F. DAVIE, Professeur, Université François-Rabelais, Tours, rapporteur M. Marcel KUPER, Chercheur, Cirad Rabat (Maroc), HDR, rapporteur M. Philippe LE GRUSSE

Paris-Sud XI, Université de

392

Spcialit CHIMIE Par Christian Klemps  

E-Print Network [OSTI]

Ricard and Xavier Le Goff for the crystal structure solution and refinement work presented in this thesis Production 8 3.1 Phillips Petroleum Trimerization Process 8 3.2 Systems with Cyclopentadienyl Ligands 10 3(pyrazolyl)methane Ligands 16 3.6.2.3 Diazabutadiene Ligands 18 3.6.3 Systems with Mixed Nitrogen-Sulfur Donor Ligands 18 3

Paris-Sud XI, Université de

393

THESE -Prsente par : Thibault Goui  

E-Print Network [OSTI]

#12;En couverture : Structure cristallographique de l'Uracile-ADN Glycosylase d'EBV en complexe avec l'Ugi

Paris-Sud XI, Université de

394

THESE DE DOCTORAT Prsente par  

E-Print Network [OSTI]

Abstract Nowadays with the world oil price soaring, the energy issue is becoming a significant topic. The experimental and simulation results through work-cycles discussion show good performance of combining these two

Paris-Sud XI, Université de

395

cole Centrale Paris prsente par  

E-Print Network [OSTI]

ANR SIMTUR (SImulation aux grandes échelles Massivement parallèles pour les TURbines à gaz). Ce projet

Paris-Sud XI, Université de

396

Ecole Centrale Paris prsente par  

E-Print Network [OSTI]

prémélangé swirlé : Application à l'étude du bruit de combustion dans les chambres de turbines à gaz Soutenue, dans le cadre du projet "Bruco" sur le bruit de combustion issu des turbines à gaz. Ce programme type moteurs aéronautiques et turbines à gaz. Des phénomènes de bruit et d'instabilités de combustion

Paris-Sud XI, Université de

397

Ecole Centrale Paris presentee par  

E-Print Network [OSTI]

-15Feb2006 #12;Remerciements ii Merci `a vous deux de m'avoir donn´e le go^ut du m´etier de chercheur et

Boyer, Edmond

398

,,"PARS II Interim Migration Template"  

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

(HEPF)",,"04-D-103-02High Explosive Pressing Facility (HEPF)" ,,"June",,"04-D-125Chemistry & Metallurgy Research Facility Replacement -- NF (CMRR)",,,,,"04-D-125","Chemistry &...

399

E-Print Network 3.0 - aluminized teflon fep Sample Search Results  

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

Capareda, C. Boriack, R. Lacey, B. Shaw, and C. Parnell Jr. "Assessment of Ammonia Adsorption onto Teflon and LDPE Tubing used in Pollutant Stream Summary: was also lined with 5...

400

E-Print Network 3.0 - aluminized v-5cr-5ti alloy Sample Search...  

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

B. A. Pint, R. W. Swindeman, K. L... : Slurry Coatings and Surface Alloying B. L. Armstrong, K. M. Cooley, M. P. Brady, H-T Lin, and J. A Source: Pint, Bruce A. - Materials...

Note: This page contains sample records for the topic "aluminized reflector par" 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

E-Print Network 3.0 - aluminate coupling agent Sample Search...  

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

hydrate, Ca2- Al(OH)61 X ? nH2O2 , where X OH2 and CO22 3 Source: Messersmith, Phillip B.- Department of Materials Science and Engineering, Northwestern University...

402

E-Print Network 3.0 - alumina-rich magnesium aluminate Sample...  

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

(3 pm... , but no evidence of evaporative loss is seen. The inclusion has a Group II REE pattern and a normal magnesium... ) and SYLVESTER etal. ( 1993). Magnesium, Al, Ti, Mn....

403

Reactive Air Aluminizing of Nicrofer-6025HT for Use in Advanced Coal-Based Power Plants  

SciTech Connect (OSTI)

The present work demonstrated the feasibility of preparing RAA coatings on Nicrofer and compared the effect of aluminum powder size on the RAA process.

Joshi, Vineet V.; Choi, Jung-Pyung; Darsell, Jens T.; Meier, Alan; Weil, K. Scott

2013-01-01T23:59:59.000Z

404

E-Print Network 3.0 - aluminate-silica fume mixtures Sample Search...  

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

< 1 2 3 4 5 > >> Page: << < 1 2 3 4 5 > >> 21 Carbon 39 (2001) 19952001 Silane-treated carbon fiber for reinforcing cement Summary: -treated carbon fibers and silane-treated silica...

405

E-Print Network 3.0 - aluminate cement blended Sample Search...  

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

predicting the setting times of Type I cement concrete and blended... -29, 1980. 20. Tay, J. .H., Properties of Pulverized Sludge Ash Blended Cement. ACI Materials Journals... OF...

406

E-Print Network 3.0 - aluminous cement Sample Search Results  

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

and expanded shale (lightweight) aggregate Source: Columbia University - Waste-to-Energy Research and Technology Council (WTERT) Collection: Renewable Energy 63 By-Products...

407

E-Print Network 3.0 - aluminate cements hydration Sample Search...  

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

INTRODUCTION Many entities currently use fly ash in portland cement concrete (PCC) pavements... Transportation & Development and Louisiana State University incorporating...

408

E-Print Network 3.0 - aluminate blend phosphate Sample Search...  

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

Space Sciences Collection: Physics 42 Formation of Biomimetic Porous Calcium Phosphate Coatings on Surfaces of PolyethyleneZinc Stearate Blends Summary: -zinc stearate blends...

409

Occupancy and site distribution of europium in barium magnesium aluminate Eu Mossbauer spectroscopy  

E-Print Network [OSTI]

as a blue emitting phosphor in various lighting applications. The 4f6 5d4f7 transition of Eu2 Therefore improving the stability of BAM is one of the im- portant concerns for the lighting industries.2 for fluorescent lamps with a high color rendering index. In comparison to the red and green emitting phos- phors

Boolchand, Punit

410

Thermochemical Properties of Gibbsite, Bayerite, Boehmite, Diaspore, and the Aluminate Ion between 0 and 3500C  

E-Print Network [OSTI]

Chemie, v. 318, p. 238-256. Glasstone, S. , Laidler, KJ. andusing absolute rate theory (Glasstone et al. , 1941). It is

Apps, John A.; Neill, J.M.; Jun, C.-H.

1988-01-01T23:59:59.000Z

411

E-Print Network 3.0 - aluminate spinel formation Sample Search...  

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

Columbia: insights from heavy minerals in stream sediments Summary: , spinel and titanite. Our results suggest that detritus from a horizon of coarse pebble conglomerate......

412

Test results, Industrial Solar Technology parabolic trough solar collector  

SciTech Connect (OSTI)

Sandia National Laboratories and Industrial Solar Technology are cost-sharing development of advanced parabolic trough technology. As part of this effort, several configurations of an IST solar collector were tested to determine the collector efficiency and thermal losses with black chrome and black nickel receiver selective coatings, combined with aluminized film and silver film reflectors, using standard Pyrex{reg_sign} and anti-reflective coated Pyrex{reg_sign} glass receiver envelopes. The development effort has been successful, producing an advanced collector with 77% optical efficiency, using silver-film reflectors, a black nickel receiver coating, and a solgel anti-reflective glass receiver envelope. For each receiver configuration, performance equations were empirically derived relating collector efficiency and thermal losses to the operating temperature. Finally, equations were derived showing collector performance as a function of input insolation value, incident angle, and operating temperature.

Dudley, V.E. [EG and G MSI, Albuquerque, NM (United States); Evans, L.R.; Matthews, C.W. [Sandia National Labs., Albuquerque, NM (United States)

1995-11-01T23:59:59.000Z

413

RADIATIVE COOLING TEST FACILITY AND PERFORMANCE EVALUATION OF 4 MIL ALUMINIZED POLYVINYL FLUORIDE AND WHITE PAINT SURFACES  

E-Print Network [OSTI]

as temperature, heater power, wind direction, etc. , thatcondensation) RCA 1026 (wind) c:: "7 = (power to heater) w (wind and windscreen condensation (white paint radiator). VARIOUS TEMPERATURES VS POWER

Kruskopf, Mark S.

2014-01-01T23:59:59.000Z

414

Prospects for the development of femtosecond laser systems based on beryllium aluminate crystals doped with chromium and titanium ions  

SciTech Connect (OSTI)

The physical and laser properties of beryllium-containing BeAl{sub 2}O{sub 4}, BeAl{sub 6}O{sub 10}, Be{sub 3}Al{sub 2}Si{sub 6}O{sub 18}, and BeLaAl{sub 11}O{sub 19} oxide crystals doped with chromium and titanium ions are studied. The Cr{sup 3+}:BeAl{sub 2}O{sub 4}, Cr{sup 3+}:BeAl{sub 6}O{sub 10}, and Ti{sup 3+}:BeAl{sub 2}O{sub 4} crystals were shown to compare favourably in physical and laser properties with the well-known laser media and to be candidates for femtosecond laser systems. (lasers and amplifiers)

Pestryakov, Efim V [Institute of Laser Physics, Siberian Branch, Russian Academy of Sciences, Novosibirsk (Russian Federation); Alimpiev, A I [Design Technological Institute of Monocrystals, Siberian Branch of the Russian Academy of Sciences, Novosibirsk (Russian Federation); Matrosov, V N [Belorussian State Polytechnical Academy, Minsk-107 (Belarus)

2001-08-31T23:59:59.000Z

415

Le projet de Sorbonne Paris Cit est un des laurats de la deuxime vague des appels Ini a ves d'excellence lancs dans le cadre des Inves ssements d'avenir. Au total, 8 projets, dont 4 en Ile-de-France, ont t slec onns par un  

E-Print Network [OSTI]

Le projet de Sorbonne Paris Cité est un des lauréats de la deuxième vague des appels Ini a ves d-économique. L'appel à projets Ini a ve d'excellence a été lancé par l'Etat en 2011 dans le cadre du programme capables de rivaliser avec les meil- leures universités du monde. Les ini a ves d'excellence "réuniront

Powell, Geoffrey

416

Fonctions et passage de paramtre par rfrence  

E-Print Network [OSTI]

de la variable locale dans la fonction appelée ne modifie la variable passée en paramètre, parce que rajouter le caractère & entre le type et le nom du paramètre. Ainsi, l'exécution du code : 1 void change

Lacroix, Mathieu

417

cole Normale Suprieure de Cachan Prsente par  

E-Print Network [OSTI]

m'avoir fait comprendre la stéréorectification (enfin!). Merci aussi à Nicolas, parce que la 3D sans; · 255009 lignes de code; · 26 programmes; · 11 cahiers; · 25 stylos et crayons divers; · 1350 litres de thé

418

Le consentement meurtrier Par Marc Crpon  

E-Print Network [OSTI]

pour une démarche rarement explorée : soutenir la réflexion philosophique de sources littéraires (Camus

419

Collge doctoral N attribu par la bibliothque  

E-Print Network [OSTI]

Express PCI-SIG RenderMan Pixar Animation Studios OpenGL, OpenGL ES Silicon Graphics Incorporated Sony, PlayStation Sony Corporation Sun, VIS Sun Microsystems, Inc. Crusoe, Efficeon, Transmeta Transmeta

Paris-Sud XI, Université de

420

ISN : 02-88 presentee par  

E-Print Network [OSTI]

nucleaires et developpement durable 7 1.1 Le probleme actuel de la gestion des dechets nucleaires perspectives energetiques mondiales d'ici 2050 . . . . . . . . . . . . . 9 1.2.1 Contexte energetique global

Paris-Sud XI, Université de

Note: This page contains sample records for the topic "aluminized reflector par" 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

Astronomie, écologie et poésie par Hubert Reeves  

ScienceCinema (OSTI)

Hubert ReevesL'astrophysicien donne une conférence puis s'entretient avec l'écrivain François Bon autour de :"Astronomie, écologie et poésie"Pour plus d'informations : http://outreach.web.cern.ch/outreach/FR/evenements/conferences.htmlNombre de places limité. Réservation obligatoire à la Réception du CERN : +41 22 767 76 76  Soirée diffusée en direct sur le Web : http://webcast.cern.ch/      

None

2011-10-06T23:59:59.000Z

422

SPECTROMTRE STELLAIRE MULTICANAL Par LAWRENCE MERTZ,  

E-Print Network [OSTI]

An interferometer has been built in order to apply Dr Fellgett's technique to stellar spectrometry in the visible filter. The path difference can be varied by 175 03BB at 4 000 Å. In order to reduce scintillation noise

Paris-Sud XI, Université de

423

LE CONTRLE EXTERNE DES ASSOCIATIONS PAR LES  

E-Print Network [OSTI]

, which can be used equally to evaluate public policies, - an external control through new rules of accountancy of the public subsidies, This article shows that the management control can influence financial to internal users like managers. Mots clés. - Secteur public, contrôle externe, association, gestion

Paris-Sud XI, Université de

424

Exploration de r eseaux par un robot  

E-Print Network [OSTI]

â??eseau, ni mâ??eme sur sa taille. Sa tâ??ache consiste â?? a traverser chacun des liens du râ??eseau. Nous montrons nodes is fundamental in searching for data stored at unknown nodes of a network, and traversing all.g., by depth­first search). However, in some navigation problems in unknown environments, such unique labeling

Ilcinkas, David

425

All rights res served. No par  

E-Print Network [OSTI]

. The Office of Research Compliance (ORC) is responsible for ensuring that all research and/or teaching involving the use of animals follows federal and institutional guidelines. Additionally, the ORC works HHRA Building 336-256-1482 http://www.uncg.edu/orc/ Office of Research and Economic 1704 HHRA Building

Saidak, Filip

426

Pr esent ee par Fabienne NAEGELE  

E-Print Network [OSTI]

::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::: 7 Chapitre 1 Th eor#12;emes d'indices pour les equations q-diff erences-diff erentielles :::::::13 en eralis es :::::::::::::::::::::::::::::::::::::::::::::::::::::: 15 4. Th eor#12;emes d'indices et ;r;;-op erateurs :::::::::::::::::::::::::::::::::::::::::::::::::::::::: 20 4.4. Th eor#12;emes d

Boyer, Edmond

427

Cours de Probabilites experimente par Didier Piau  

E-Print Network [OSTI]

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59 3.2 Le th´eor`eme fondamental´e . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91 4.4 Th´eor`emes limites'un cours d'Int´egration. Dans la section 1.1, le th´eor`eme lambda­pi 1.2 et son corollaire 1.3, d^u `a

Piau, Didier

428

Prsente par Alexia CHOLLAT-NAMY  

E-Print Network [OSTI]

'équipe du Pr. Wim Burmeister, de l'IVMS/EMBL pour l'UGi (merci à Thibaut et à Marlyse !!). tel-00106970

Paris-Sud XI, Université de

429

prsente par pour obtenir le grade de  

E-Print Network [OSTI]

. . . . . . . . . . . . . . . . . . . . . . . . . . 5 1.1.1 L'origine extra-terrestre . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 1.1.2 Les

Paris-Sud XI, Université de

430

presentee par EMMANUEL FAVRE-NICOLIN  

E-Print Network [OSTI]

m'ont certainement donn´e le go^ut de la connaissance, mon fr`ere et ma soeur qui sont des exemples

Boyer, Edmond

431

PARS II Course Descriptions | Department of Energy  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious RankCombustion | Department ofT ib l L d F SSales LLCDieselEnergyHistory and Successes PAFC History

432

PARS II Course Registration | Department of Energy  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious RankCombustion | Department ofT ib l L d F SSales LLCDieselEnergyHistory and Successes PAFC

433

PARS II Training Materials | Department of Energy  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious RankCombustion | Department ofT ib l L d F SSales LLCDieselEnergyHistory and Successes PAFCTraining

434

PARS II Process Document – DOE Period Close  

Broader source: Energy.gov [DOE]

This document details the process adopted by the Office of Acquisition and Project Management to prepare APM DepSec Monthly Status Report, finalize DOE close period package, and perform reporting...

435

PARS II Process Document – On Hold Projects  

Broader source: Energy.gov [DOE]

This document details the process approved by the CRB for placing Capital Asset projects on hold, re-activating on hold projects, and cancelling on hold projects.  It applies to Active Capital...

436

LED PAR38 Lamps | Department of Energy  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) "ofEarly Career Scientists'Montana.ProgramJulietipDepartmentJuneWhen IAjani Stewartand Usage ofJ.All ofreports

437

NNT : 2013 EMSE 0702 prsente par  

E-Print Network [OSTI]

» Spécialité : Sciences et génie de l'environnement ELECTROPLATING WASTEWATER POLISHING IN CONSTRUCTED WETLAND Department Doctoral thesis Electroplating wastewater polishing in constructed wetland systems Adam SOCHACKI ...................................................................................................................3 3 Origin and treatment of electroplating wastewater

Paris-Sud XI, Université de

438

Integrated LED-based luminare for general lighting  

DOE Patents [OSTI]

Lighting apparatus and methods employing LED light sources are described. The LED light sources are integrated with other components in the form of a luminaire or other general purpose lighting structure. Some of the lighting structures are formed as Parabolic Aluminum Reflector (PAR) luminaires, allowing them to be inserted into conventional sockets. The lighting structures display beneficial operating characteristics, such as efficient operation, high thermal dissipation, high output, and good color mixing.

Dowling, Kevin J.; Lys, Ihor A.; Roberge, Brian; Williamson, Ryan C.; Roberts, Ron; Datta, Michael; Mollnow, Tomas; Morgan, Frederick M.

2013-03-05T23:59:59.000Z

439

Optimisation par algorithme gntique de la maintenance prventive dans un contexte de modlisation par modles  

E-Print Network [OSTI]

would be to apply a preventive maintenance in order to limit or even prevent system breakdowns (failures). But if the preventive maintenance is not properly regulated, we risk to face excessive costs and unnecessary system downtime. Given this situation, we should so consider establishing preventive maintenance strategies

Boyer, Edmond

440

ORALLOY (93.2 235U) METAL CYLINDER WITH BERYLLIUM TOP REFLECTOR  

SciTech Connect (OSTI)

A variety of critical experiments were constructed of enriched uranium metal during the 1960s and 1970s at the Oak Ridge Critical Experiments Facility (ORCEF) in support of criticality safety operations at the Y-12 Plant. The purposes of these experiments included the evaluation of storage, casting, and handling limits for the Y-12 Plant and providing data for verification of calculation methods and cross-sections for nuclear criticality safety applications. These included solid cylinders of various diameters, annuli of various inner and outer diameters, two and three interacting cylinders of various diameters, and graphite and polyethylene reflected cylinders and annuli. Of the hundreds of delayed critical experiments, one experiment was comprised of a stack of approximately 7-inch-diameter metal discs. The bottom of the stack consisted of uranium with an approximate height of 4-1/8 inches. The top of the stack consisted of beryllium with an approximate height of 5-9/16 inches. This experiment was performed on August 20, 1963 by J. T. Mihalczo and R. G. Taylor (Ref. 1) with accompanying logbook. Both detailed and simplified model specifications are provided in this evaluation. This fast-spectra experiment was determined to represent an acceptable benchmark. The calculated eigenvalues for both the detailed and simple models are within approximately 0.5% of the benchmark values, but significantly greater than 3s from the benchmark value because the uncertainty in the benchmark is very small: ±0.0002 (1s). There is significant variability between results using different neutron cross section libraries, the greatest being a ?keff of ~0.65% . Unreflected and unmoderated experiments with the same highly enriched uranium metal parts were performed at the Oak Ridge Critical Experiments Facility in the 1960s and are evaluated in HEU MET FAST 051. Thin graphite reflected (2 inches or less) experiments also using the same highly enriched uranium metal parts are evaluated in HEU MET FAST 071. Polyethylene-reflected configurations are evaluated in HEU-MET-FAST-076. Highly enriched metal annuli with beryllium cores are evaluated in HEU-MET-FAST-059.

John D. Bess; Leland M. Montierth; Raymond Reed; John T. Mihalczo

2010-09-01T23:59:59.000Z

Note: This page contains sample records for the topic "aluminized reflector par" 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

Electron-reflector strategy for CdTe thin-film solar cells.  

E-Print Network [OSTI]

??The CdTe thin-film solar cell has a large absorption coefficient and high theoretical efficiency. Moreover, large-area photovoltaic panels can be economically fabricated. These features potentially… (more)

Hsiao, Kuo-Jui

2010-01-01T23:59:59.000Z

442

Structural design considerations for stretched-membrane heliostat reflector modules with stability and initial imperfection considerations  

SciTech Connect (OSTI)

This report extends the work of several previous reports that present the background leading to the development of stretched-membrane modules and analysis methods to study the structural response of the stretched-membrane module. Specifically, this report presents and discusses the design implications based on our analysis of single- or double-membrane concepts, and the amplification of initial imperfections and deflections caused by loading, which results from stability considerations. In this document, we present analysis results for both single- and double-membrane concepts corresponding to a range of design and loading conditions. Further, we show that stretched-membrane/frame combinations respond quite differently to external loads than can be inferred by studying the decoupled frame and membrane independently. Thus the coupled membrane/frame problem should be considered to assure an accurate description of its response. For idealized configurations and loadings, we discuss the relative merits of various design features for both of these designs. In addition, we studied the structural stability (i.e., the tendency of structural deformation to grow with little increase in applied load) of the tensioned-membrane, compressed-frame combination. Moreover, we demonstrate how stability considerations are important in determining the amplification of both initial displacement imperfection and the deformations caused by wind and weight loading on the structure.

Murphy, L.M.; Simms, D.; Sallis, D.V.

1986-10-01T23:59:59.000Z

443

Wide bandwidth, large, and tunable polarization mode dispersions in multilayered omnidirectional reflectors  

E-Print Network [OSTI]

-speed fiber links in general.1­6 Cabled fibers show time-varying PMD due to manufacturing imperfec- tions. B. Miller and Shanhui Fana) Department of Electrical Engineering, Stanford University, Stanford

Miller, David A. B.

444

WhiteOptics' Low-Cost Reflector Composite Boosts LED Fixture Efficiency  

Broader source: Energy.gov [DOE]

With the help of DOE funding, WhiteOptics has developed a composite coating that can be used to improve efficiency in backlit, indirect, and cavity-mixing LED luminaire designs by maximizing light reflection and output. The highly diffuse coating, which is based on a novel high-reflectance particle technology, allows for uniform distribution of light without exaggerating the point-source nature of the LEDs, and is intended to offer an overall system cost-improving solution for LED optics.

445

Project Profile: Predictive Physico-Chemical Modeling of Intrinsic Degradation Mechanisms for Advanced Reflector Materials  

Broader source: Energy.gov [DOE]

NREL, under the Physics of Reliability: Evaluating Design Insights for Component Technologies in Solar (PREDICTS) Program will be developing a physics-based computational degradation model to assess the kinetic oxidation rates; realistic model light attenuation and transport; and multi-layer treatment with variable properties Simulation based experimental design.

446

Low-Cost Self-Cleaning Reflector Coatings for CSP Collectors- FY13 Q2  

Broader source: Energy.gov [DOE]

This document summarizes the progress of this ORNL project, funded by SunShot, for the second quarter of fiscal year 2013.

447

Accelerated aging of thick glass second surface silvered reflectors under sandstorm conditions.  

E-Print Network [OSTI]

?? Concentrated solar power systems are expected to be sited in desert locations where the direct normal irradiation is above 1800 kWh/m2.year. These systems include… (more)

Caron, Simon

2011-01-01T23:59:59.000Z

448

MICROMORPH n-i-p TANDEM CELLS WITH ASYMMETRIC INTERMEDIATE REFLECTORS F.-J. Haug1  

E-Print Network [OSTI]

(EPFL), Photovoltaics and Thin Film Electronics Laboratory, Rue A.-L. Breguet 2, 2000 Neuchâtel, Switzerland 2 now at University of New South Wales, School of Photovoltaic and Renewable Energy Engineering with size of typically 0.25 cm2 . The best cell among an array of 16 devices on the 4x4 cm2 sample area

Floreano, Dario

449

SciTech Connect: Radar cross section of triangular trihedral reflector with  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administrationcontroller systemsBi (2) Sr (2) Ca (2)Frameworkextended bottom plate. Radar

450

SciTech Connect: Recovery Act: Low-Cost, Highly Lambertian Reflector  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administrationcontroller systemsBi (2) Sr (2) Ca (2)FrameworkextendedComposite For Improved LED

451

Comparative study of Non -Tracking and Low Concentrating Photovoltaic systems Using Low -Cost Reflectors.  

E-Print Network [OSTI]

??The traditional high concentrating photovoltaic systems have proved to be expensive as they use high grade silicon solar cells, highly specular reflecting materials and require… (more)

Hatwaambo, Sylvester

2012-01-01T23:59:59.000Z

452

Project Profile: Low-Cost Self-Cleaning Reflector Coatings for CSP  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious RankCombustion | Department ofT ib l L d FNEPA/309DepartmentDepartment ofCyclesEnergy HeliostatCollectors

453

Project Profile: Next-Generation Low-Cost Reflector | Department of Energy  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious RankCombustion | Department ofT ib l L d FNEPA/309DepartmentDepartment ofCyclesEnergyCSP

454

Advanced Reflector and Absorber Materials (Fact Sheet), Thermal Systems Group: CSP Capabilities (TSG)  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth (AOD)ProductssondeadjustsondeadjustAbout the BuildingInnovation Portal AdvancedMethods

455

Composites comprising silicon carbide fibers dispersed in magnesia-aluminate matrix and fabrication thereof and of other composites by sinter forging  

DOE Patents [OSTI]

A novel ceramic-ceramic composite of a uniform dispersion of silicon carbide fibers in a matrix of MgO.multidot.nAl.sub.2 O.sub.3 wherein n ranges from about 1 to about 4.5, said composite comprising by volume from 1 to 50% silicon carbide fibers and from 99 to 50% MgO.multidot.nAl.sub.2 O.sub.3. The composite is readily fabricated by forming a powder comprising a uniform dispersion of silicon carbide fibers in poorly crystalline phase comprising MgO and Al.sub.2 O.sub.3 in a mole ratio of n and either (a) hot pressing or preferably (b) cold pressing to form a preform and then forging utilizing a temperature in the range of 1100.degree. C. to 1900.degree. C. and a strain rate ranging from about 10.sup.-5 seconds .sup.-1 to about 1 seconds .sup.-1 so that surfaces cracks do not appear to obtain a shear deformation greater than 30%.

Panda, Prakash C. (Ithaca, NY); Seydel, Edgar R. (Ithaca, NY); Raj, Rishi (Ithaca, NY)

1989-10-03T23:59:59.000Z

456

High temperature oxidation and NaCl-induced accelerated corrosion of hot-dip aluminized 9Cr-1Mo and 310 stainless steel  

E-Print Network [OSTI]

investigated by weight gain kinetics, metallographs, depths of attack, metal losses, and X-ray analyses. The results of 310SS deposited with salt mixtures show that weight gain kinetics in simple oxidation reveals a steady-state parabolic rate law after 3 hr...

Tsaur, Charng-Cheng

2005-02-17T23:59:59.000Z

457

The National Energy Policy Act and lamp replacement options  

SciTech Connect (OSTI)

The National Policy Act of 1992 involves the creation of energy efficiency standards for a wide range of products including fluorescent and incandescent lamps. Minimum efficacy (lumens per watt) and color rendering index (CRI) standards are mandated for the popular fluorescent lamps: four-foot medium bi-pin, two-foot U-bent, eight-foot slimline and eight-foot high output. Minimum efficacies are mandated for specific incandescent R and PAR reflector lamps. These standards will affect selected colors and designs of fluorescent lamps, the most significant being the standard lamps in the cool white and warm white colors. The incandescent reflector lamps will include the R-30, R-40, PAR-38 lamps above 40 watts, excluding the halogen types. These efficiency and color rendering standards will require end-users and specifiers to select replacement fluorescent lamps from a range of performance characteristics (lumen output, efficacy, CRI and price). The choice of replacement for the R and PAR incandescent lamps will include the halogen designs and compact fluorescent designs. In this paper, replacement options will be analyzed and discussed and the effect of these options on the performance of the lighting system will be explored in detail.

Ryerson, C.

1995-06-01T23:59:59.000Z

458

Glossary of Screen Labels for PARS II V1  

Energy Savers [EERE]

Gaseous Diffusion Plant PPPO Portsmouth Paducah Project Office Richland Richland Russia Russia SEFOR - Arkansas Southwest Experimental Fast Oxide Reactor - Arkansas SLAC...

459

INHIBITION DE LA PROTOLYSE PEPSIQUE IN VITRO PAR LE BL.  

E-Print Network [OSTI]

-Claire CAMUS J. C. LAPORTE P. POCHOLLE Unité de Recherches diététiques de l'I. N. S. E. R. M., Hôpital Bichat celui-ci donnait lieu à des valeurs plus importantes (CAMUS et SAUTIER, i9!2). En vue d'expliquer ce

Paris-Sud XI, Université de

460

UNIVERSIT de GRENOBLE No attribu par la bibliothque  

E-Print Network [OSTI]

'Audiovisuel (INA) 2 SONY CSL-Paris & Lip6 (Paris 6) Institut National de l'Audiovisuel Direction de la Recherche 4, avenue de l'Europe ­ 94 366 Bry sur Marne {jean, remi}@ina.fr, pachet@csl.sony.fr Résumé Dans le contexte

Paris-Sud XI, Université de

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


461

anim par harri: Topics by E-print Network  

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

Management and Restoration Websites Summary: Ma, Harris, Gao and Ding QUARTERLY PROGRESS REPORT October 012009 - December312009 Recycling its proper management and recycling...

462

INTGRATION DES INDICATEURS DE PERFORMANCE LA GESTION PAR  

E-Print Network [OSTI]

DE LA VERSION 2000 DE LA NORME ISO 9001 Luc Godin, M.Sc. Hélène Bergeron, D.Sc. Gestion Chargé de norme ISO 9001:2000. ABSTRACT Since the adoption of the 2000 version of ISO 9001, organizations wishing to their process management in adopting the ISO 9001:2000. Mots clés : Indicateurs de performance, processus, ISO

Boyer, Edmond

463

COPRODUCTION DE LA QUALITE Colloque organis par le LERASS Toulouse  

E-Print Network [OSTI]

Entreprises, Centre de Recherche en Gestion Rue Claude Bloch, BP 5160, 14075 CAEN cedex 02.31.56.65.36 - fax firmas debido a la generalización de dispositivos normativos en el dominio de la calidad sirve de base CLAVE Calidad, normalización, red, transacción de costes economicos, teoria de las convenciones ANALYSE

Boyer, Edmond

464

EFFETS D'IRRADIATION SUR LE GRAPHITE Par A. HERPIN,  

E-Print Network [OSTI]

- ger, comme l'atteste peut-être l'accident survenu à Windscale en octobre-1957. Si ce souci de sécu

Paris-Sud XI, Université de

465

Contractor-Specific Documentation & Information in PARS II  

Energy Savers [EERE]

notice indicating that contractor EVMS system is certified as compliant with ANSIEIA-748 of a certain date. APM EVMS Specialist EVMS Self-Assessment reports Full...

466

Coll`ege doctoral attribue par la biblioth`eque  

E-Print Network [OSTI]

leurs connaissances et pour leur aide amicale. Messieurs Philippe Marcille, Jean-Claude Montgermont et

Paris-Sud XI, Université de

467

Dtection de Fautes par Rseaux Baysiens dans les Procds Multivaris  

E-Print Network [OSTI]

between the usual detection methods that are the multivari- ate control charts (Hotelling's T2 , MEWMA Discriminante KEYWORDS: SPC, multivariate, detection, bayesian network, T2 , MEWMA, Discriminant Analy- sis

Paris-Sud XI, Université de

468

Habitat et dveloppement durable LES PERSPECTIVES OFFERTES PAR LE SOLAIRE  

E-Print Network [OSTI]

'Etudes de la Pollution Atmosphérique CEA : Commissariat à l'Energie Atomique EDF : Electricité de France GDF responsables des ministères chargés de l'Environnement, de l'Industrie, de la recherche, du Plan et du logement Construction. Emissions de particules ETUDE PROSPECTIVE SUR LES �MISSIONS DE PARTICULES PRIMAIRES EN FRANCE � L

Boyer, Edmond

469

UNIVERSITE DE GRENOBLE No attribue par la biblioth`eque  

E-Print Network [OSTI]

Fourier) Pr´esidente Olga Kouchnarenko (Pr. Universit´e de Franche-Comt´e) Rapporteur Thomas Jensen Gilles Barthe (Pr. IMDEA Software Faculty) Examinateur Micha¨el P´erin (MCF. Universit´e Joseph Fourier

Paris-Sud XI, Université de

470

Microsoft Word - PARS II User Acct Access Guide.rtf  

Energy Savers [EERE]

such as employer name, job title, email address and phone number. Click on the "Search" dropdown box, located near the center of the form, to select a name from the list of...

471

Parli-Pro: A Fun Guide for Learning Parliamentary Procedures  

E-Print Network [OSTI]

The use of parliamentary procedure helps meetings run smoothly and efficiently. This 4-H guide explains how to participate in and conduct meetings. It includes examples of what to say and worksheets....

Davis, Brad

2007-07-23T23:59:59.000Z

472

Espaces de fonctions. Exemples et applications. Par Nicolas Lanchier 1  

E-Print Network [OSTI]

de Banach. [3], Sect. 1.5 Th´eor`eme 1.3 (Banach-Steinha¨us) Soient E un espace de Banach, F un G dense dans E. [4], Sect. 5.2 Th´eor`eme 1.4 (th´eor`eme de l'application ouverte) Soient E et F, 1)). En particulier, l'application lin´eaire T est une application ouverte. [1], Sect. 2.3 Th´eor

Lanchier, Nicolas

473

SPECTRE RAMAN DE LA MAGNSIE Par J. P. MON,  

E-Print Network [OSTI]

] a montre que dans les halog6nures alcalins, l'intensit6 et le facteur de depolarisation des principaux pics

Paris-Sud XI, Université de

474

PROPRITS SEMICONDUCTRICES DU DITELLURURE DE MOLYBDNE Par A. LEPETIT,  

E-Print Network [OSTI]

.amille de chalcog6nures sont actuellement etudies en vue d'applications thermoélectriques. Jusqu'a present

Paris-Sud XI, Université de

475

Dtermination des formes modulaires par les valeurs de  

E-Print Network [OSTI]

(resp. d'ordre 3) de . Ã? titre d'exemple, on a #23; 2 0 (m) #1; = 8 pjm #2; 1 + 1 p #1;#3; sinon et #23; 3 0 (m) #1; = 8 pjm #2; 1 + 3 p #1;#3; sinon. [Miy89, theorem 4.2.7] Ce

Royer, Emmanuel

476

CARACTRISATION DES FORMES MODULAIRES PAR DES VALEURS DE FONCTIONS L  

E-Print Network [OSTI]

d'ordre 2 (resp. d'ordre 3) de . Ã? titre d'exemple, on a #23; 2 0 (m) #1; = 8 pjm #2; 1 + 1 p #1;#3; sinon et #23; 3 0 (m) #1; = 8 pjm #2; 1 + 3 p #1;#3; sinon. [Miy

Royer, Emmanuel

477

INSTITUT NATIONAL POLYTECHNIQUE DE GRENOBLE N attribu par la bibliothque  

E-Print Network [OSTI]

-Capellan Amélie Le 23 Octobre 2007 De la substance à la forme : rôle des contraintes motrices orofaciales et . . . . . . . . . . . . . . . . . . . . 22 2.1.1 Stetson et l'essence motrice de la parole . . . . . . . . . . 22 2.1.2 Motricité et

Paris-Sud XI, Université de

478

SUR LA DIFFUSION DE LA CHALEUR; PAR M. LON GODARD.  

E-Print Network [OSTI]

, sous le rapport de la diffusion, se ranger tout près de la céruse (2). En 1880, M. Nlaquenne ( 3 Physique, 2e s~:rie, t. L~:B.. V. (= ) Annales de Chitîiie et de Physique, 3e série, t. � '"- "-IY. (3¥ârnlae von ebenen Flâchen ( I~iecl. ~nrtalert, t. XXVI, p. ~~3; 188,»; Journal de Physique) 2e série, t. V, p

Boyer, Edmond

479

Microsoft Word - PARS II Process Document - Close Period 2013...  

Office of Environmental Management (EM)

distributing and archiving of reports; and close period activities. PROCESS The Monthly Report and Close Period process starts on the 1 st working day of the reporting month. The...

480

Source Revue Archologique Sign par Franoise DUMASY -Universit Paris I  

E-Print Network [OSTI]

situation à l'écart de lieux connus. Ajoutons d'ailleurs qu'il aurait été très utile de reporter dans les titres des articles les numéros des sites tels qu'ils figurent dans l'inventaire, car le lecteur met remarquable travail de coordination fait pour les textes aurait-il pu s'étendre également aux figures qui

Note: This page contains sample records for the topic "aluminized reflector par" 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.


481

Colorado 11/2002 3 mono SPI ESTES PAR!,  

E-Print Network [OSTI]

, 0:34 STERUNG 0'26 -6.54 LAMAR 0~1 O~0 0:15 0:2 0:20 0:66 0:92 SPRINGFIELD CORTEZ 0:49-6.10 TRINIDAD·92 0*.47 0*.09 BURUNGT~N 0*.16 0*.690*.14 CHEYENNE WE 0·66 0*.650*.25 0'15 0*.441 LAMAR 0*.27 0*.65 O:29 -6.93 -6.9 0.0.. ~ CHEYENNE WE -6.02 LAMAR -6.12 BURIJNGT~N -6.78 -6.77 -6.25 -6.77 AKRON -6

482

PARS II New Contractor Information for Interconnection Security...  

Office of Environmental Management (EM)

V1.0 (November 18, 2010) The Department of Energy (DOE) Headquarters Program Cyber Security Plan (PCSP), dated February 2008, requires the Project Assessment and Reporting System...

483

UNIVERSITE DE CAEN BASSE-NORMANDIE attribu par la bibliothque  

E-Print Network [OSTI]

of double beta decay and in particular the search for neutrinoless double beta decay (0). The quantityNEMO experiment aims to reach a sensitivity up to 10 26 years on the half-life of neutrinoless double beta decay

Paris-Sud XI, Université de

484

Scheduling on the MasPar SIMD parallel computer  

E-Print Network [OSTI]

This thesis studies the feasibility of a task scheduler for a parallel operating system. After analyzing several task scheduling algorithms, the highest level first algorithm was chosen. This algorithm has been empirically found to build schedules...

Perkins, Keith Douglas

1995-01-01T23:59:59.000Z

485

Mesure assiste par miniordinateur du pouvoir thermolectrique de petits chantillons  

E-Print Network [OSTI]

de mesure doit présenter une impédance d'entrée très supérieure à celle des échantillons, sans parasites (effets Peltier locaux dûs à des contraintes sur les fils de thermocouple) impose le relevé d

Paris-Sud XI, Université de

486

LA MTHODE INONDABILIT : APPROPRIATION PAR LES HYDROLOGUES DE LA VULNRABILIT  

E-Print Network [OSTI]

. et Peltier, A., L'Harmattan #12;INTÉGRER LA VULNÉRABILITÉ DANS LA MÉTHODE INONDABILITÉ2 de personnes forte ampleur, du type de celle de la Seine en 1910, si elle revenait aujourd'hui à Paris engendrerait

Boyer, Edmond

487

INSTITUT NATIONAL POLYTECHNIQUE DE GRENOBLE N attribu par la bibliothque  

E-Print Network [OSTI]

. . . . . . . . . . . . . . . . . . .. Turbine à gaz . II.1 Turbine à gaz à circuit ouvert II.1.1 Principes....... II.1.2 i\\mélioration du rendement II.1.3 Cycle réel d'une installation II.2 Turbine à gaz à circuit fermé II 2 1 P" .. . rln Introduction . II Turbine hydraulique . II.1 Les différentes parties d'une turbine hydraulique .. II.2 Turbines

Paris-Sud XI, Université de

488

Dlivr par l'UNIVERSIT PAUL VALERY MONTPELLIER 3  

E-Print Network [OSTI]

for the didactics of "interculturation" Discourses about inter-societal relationship in textbooks for French as a foreign / second language (Greece, Lebanon, Morocco) In the field of second language and culture didactics didactic theories and classroom practices. Cross-cultural approaches presently need the identification

Paris-Sud XI, Université de

489

UNIVERSITE MONTPELLIER II N attribu par la bibliothque  

E-Print Network [OSTI]

organisées depuis trois ans. Merci donc à Sylvie Delisle, à Jean-Loup Montenat et à Claude Gout, de Total, à

Boyer, Edmond

490

Project Assessment and Reporting System (PARS II) | Department of Energy  

Office of Environmental Management (EM)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) "of Energy Power Systems Engineering Research and Development (PSEEnergy Progress ContinuesDepartment

491

Project Assessment and Reporting System (PARS II) | Department of Energy  

Office of Environmental Management (EM)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) "of Energy Power Systems Engineering Research and Development (PSEEnergy Progress

492

PARS II Enhancements - Igor Pedan, MA-63 | Department of Energy  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:Year in3.pdfEnergyDepartment ofOil's Impact on OurSemprius ConfidentialandEnergySitethe

493

PEP TALK - Policy - EVMS - PARS Update - Mel Frank, Chief, Project  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:Year in3.pdfEnergyDepartment ofOil's Impact on OurSempriusEnergy PART 708 --ofSystems

494

SUR LES DILECTRIQUES HTROGNES; PAR M. A. HESS.  

E-Print Network [OSTI]

~'~,~ ... lenrs pouvoirs inducteurs et r, t,', r~ ... leurs résis- tances spécifiqu es : Dans le cas particulier

Paris-Sud XI, Université de

495

Design Specifications for the PARS II Extraction Utility | Department of  

Energy Savers [EERE]

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Office of Inspector General Office of Audit Services AuditTransatlantic Relations & the196-2011Waste viaDesign

496

Full-color transflective cholesteric LCD with image-enhanced reflector Yi-Pai Huang, Xinyu Zhu,  

E-Print Network [OSTI]

Optronics Corp., Hsinchu, Taiwan, 300, R.O.C. M-X. Chan, S-H. Lin, and H-P. D. Shieh are with the Institute

Wu, Shin-Tson

497

System performance and cost sensitivity comparisons of stretched membrane heliostat reflectors with current generation glass/metal concepts  

SciTech Connect (OSTI)

Heliostat costs have long been recognized as a major factor in the cost of solar central receiver plants. Research on stretched membrane heliostats has been emphasized because of their potential as a cost-effective alternative to current glass/metal designs. However, the cost and performance potential of stretched membrane heliostats from a system perspective has not been studied until this time. The optical performance of individual heliostats is predicted here using results established in previous structural studies. These performance predictions are used to compare both focused and unfocused stretched membrane heliostats with state-of-the-art glass/metal heliostats from a systems perspective. We investigated the sensitivity of the relative cost and performance of fields of heliostats to a large number of parameter variations, including system size, delivery temperature, heliostat module size, surface specularity, hemispherical reflectance, and macroscopic surface quality. The results indicate that focused stretched membrane systems should have comparable performance levels to those of current glass/metal heliostat systems. Further, because of their relatively lower cost, stretched membrane heliostats should provide an economically attractive alternative to current glass/metal heliostats over essentially the entire range of design parameters studied. Unfocused stretched membrane heliostats may also be attractive for a somewhat more limited range of applications, including the larger plant sizes and lower delivery temperatures.

Murphy, L.M.; Anderson, J.V.; Short, W.; Wendelin, T.

1985-12-01T23:59:59.000Z

498

Integration of Self-Assembled Porous Alumina and Distributed Bragg Reflector for Light Trapping in Si Photovoltaic Devices  

E-Print Network [OSTI]

Light trapping is an important issue for thin film silicon photovoltaic cells due to the limited absorption coefficient for near infrared light. In this letter, we present a photonic structure that combines porous anodic ...

Sheng, Xing

499

Calcium Aluminates: Proceedings of International Conference, Avignon, 18 21 May 2014. Fentiman CH, Mangabhai RJ and Scrivener KL (Editors). IHS BRE Press, 2014, EP104. ISBN 978-1-84806-316-7.  

E-Print Network [OSTI]

in the current frame of materials sustainable development. Understanding of the interactions driving: The main cause of building-facade biodeterioration is the growth of microorganisms. The state of surface is to highlight the influence of mortar chemistry and its physical properties on algal growth. The green algae

500

Congrs SHF : Hydromtrie 2013, Paris, 15-16 mai 2013 Dramais et al. Jaugeage par radar mobile JAUGEAGE PAR RADAR MOBILE,  

E-Print Network [OSTI]

measurement using SVR (Surface Velocity Radar) can be used to measure river discharge during floods surface velocities, additional measurements (bathymetry, velocity profiles, water level) are needed the radar method and other conventional discharge measurements. The quality of the results is very

Boyer, Edmond