Sample records for incandescent reflector lamb

  1. 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.

  2. High efficiency incandescent lighting

    DOE Patents [OSTI]

    Bermel, Peter; Ilic, Ognjen; Chan, Walker R.; Musabeyoglu, Ahmet; Cukierman, Aviv Ruben; Harradon, Michael Robert; Celanovic, Ivan; Soljacic, Marin

    2014-09-02T23:59:59.000Z

    Incandescent lighting structure. The structure includes a thermal emitter that can, but does not have to, include a first photonic crystal on its surface to tailor thermal emission coupled to, in a high-view-factor geometry, a second photonic filter selected to reflect infrared radiation back to the emitter while passing visible light. This structure is highly efficient as compared to standard incandescent light bulbs.

  3. Dual LED/incandescent security fixture

    DOE Patents [OSTI]

    Gauna, Kevin Wayne

    2005-06-21T23:59:59.000Z

    A dual LED and incandescent security lighting system uses a hybrid approach to LED illumination. It combines an ambient LED illuminator with a standard incandescent lamp on a motion control sensor. The LED illuminator will activate with the onset of darkness (daylight control) and typically remain on during the course of the night ("always on"). The LED illumination, typically amber, is sufficient to provide low to moderate level lighting coverage to the wall and ground area adjacent to and under the fixture. The incandescent lamp is integrated with a motion control circuit and sensor. When movement in the field of view is detected (after darkness), the incandescent lamp is switched on, providing an increased level of illumination to the area. Instead of an "always on" LED illuminator, the LEDs may also be switched off when the incandescent lamp is switched on.

  4. Visible Spectrum Incandescent Selective Emitter

    SciTech Connect (OSTI)

    Sonsight Inc.

    2004-04-30T23:59:59.000Z

    The purpose of the work performed was to demonstrate the feasibility of a novel bi-layer selective emitter. Selective emitters are incandescent radiant bodies with emissivities that are substantially larger in a selected part of the radiation spectrum, thereby significantly shifting their radiated spectral distribution from that of a blackbody radiating at the same temperature. The major research objectives involved answering the following questions: (1) What maximum VIS/NIR radiant power and emissivity ratios can be attained at 2650 K? (2) What is the observed emitter body life and how does its performance vary with time? (3) What are the design tradeoffs for a dual heating approach in which both an internally mounted heating coil and electrical resistance self-heating are used? (4) What are the quantitative improvements to be had from utilizing a bi-layer emitter body with a low emissivity inner layer and a partially transmissive outer layer? Two approaches to obtaining selective emissivity were investigated. The first was to utilize large optical scattering within an emitter material with a spectral optical absorption that is much greater within the visible spectrum than that within the NIR. With this approach, an optically thick emitter can radiate almost as if optically thin because essentially, scattering limits the distance below the surface from which significant amounts of internally generated radiation can emerge. The performance of thin emitters was also investigated (for optically thin emitters, spectral emissivity is proportional to spectral absorptivity). These emitters were fabricated from thin mono-layer emitter rods as well as from bi-layer rods with a thin emitter layer mounted on a substrate core. With an initially estimated energy efficiency of almost three times that of standard incandescent bulbs, a number of energy, economic and environmental benefits such as less energy use and cost, reduced CO{sub 2} emissions, and no mercury contamination was initially projected. The work performed provided answers to a number of important questions. The first is that, with the investigated approaches, the maximum sustained emitter efficiencies are about 1.5 times that of a standard incandescent bulb. This was seen to be the case for both thick and thin emitters, and for both mono-layer and bi-layer designs. While observed VIS/NIR ratios represent improvements over standard incandescent bulbs, it does not appear sufficient to overcome higher cost (i.e. up to five times that of the standard bulb) and ensure commercial success. Another result is that high temperatures (i.e. 2650 K) are routinely attainable without platinum electrodes. This is significant for reducing material costs. A novel dual heating arrangement and insulated electrodes were used to attain these temperatures. Another observed characteristic of the emitter was significant grain growth soon after attaining operating temperatures. This is an undesirable characteristic that results in substantially less optical scattering and spectral selectivity, and which significantly limits emitter efficiencies to the values reported. Further work is required to address this problem.

  5. How Energy-Efficient Light Bulbs Compare with Traditional Incandescent...

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

    used light fixtures or bulbs with models that have earned the ENERGY STAR, you can save 75 each year. Compared to traditional incandescents, energy-efficient lightbulbs...

  6. Fattening Lambs

    E-Print Network [OSTI]

    Jones, J. M. (John McKinley)

    1916-01-01T23:59:59.000Z

    ., Chemist in Charge; State Chemlst SUBSTATION NO. 1: BeeviJle, Bee County R. H. RIDGELL, B. S.. Assistant Chemist E. E. BINFORD, B. S., Superintendent FRANK HODGES, B. S., Assr~fanf Chemist W. T. P. SPROTT, B. S., Assistant Chemist 2: TrOup, Smith n... to the Fort V70rth market; those from Lot I sold at $7.60 per hundred pounds, while the Lot 2 lambs, which showed a little more finish, brought $7.80. The shrinkage on the first shipment of lambs was high. At the feed lots the one hundred and twenty...

  7. Cost effectiveness of long life incandescent lamps and energy buttons

    SciTech Connect (OSTI)

    Verderber, R.; Morse, O.

    1980-04-07T23:59:59.000Z

    Long-life replacement lamps for the incandescent lamp have been evaluated with regard to their cost effectiveness. The replacements include the use of energy buttons that extend lamp life as well as an adaptive fluorescent circline lamp that will fit into existing incandescent lamp sockets. The initial, operating, and replacement costs for one million lumen hours are determined for each lamp system. It is found that the most important component lighting cost is the operating cost. Using lamps that are less efficient or devices that cause lamps to operate less efficiently are not cost-effective. The adaptive fluorescent circline lamp, even at an initial unit cost of $20.00, is the most cost-effective source of illumination compared to the incandescent lamp and lamp systems examined.

  8. Nuclear reactor reflector

    DOE Patents [OSTI]

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

    1994-01-01T23:59:59.000Z

    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.

  9. Nuclear reactor reflector

    DOE Patents [OSTI]

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

    1994-06-07T23:59:59.000Z

    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.

  10. Lamb Research Collection / W. Kaye Lamb (collector)

    E-Print Network [OSTI]

    Handy, Todd C.

    Lamb Research Collection / W. Kaye Lamb (collector) Compiled by Jane Turner (1990) Revised by Erwin Collection Description o Title / Dates of Creation / Physical Description o Collector's Biographical Sketch o Collection. - 1959-1991. 1.3 m of textual records. 90 maps and charts. 26 microfilm reels. Collector

  11. 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.

  12. Operating temperatures for a convectively cooled recessed incandescent light fixture

    SciTech Connect (OSTI)

    Yarbrough, D.W.; Toor, I.

    1980-12-01T23:59:59.000Z

    Test results are given for the operation of a recessed incandescent light fixture intended for residential use. The fixture is labeled for use in direct contact with attic thermal insulation. Temperature control of the powered fixture is provided by convective heat transfer from the ceiling side of the fixture. The fixture was operated at power levels up to two times the rated power of 75 watts and under thermal insulations up to R-40. In all operating configurations tested the fixture surface in contact with attic insulation was found to be less than 175/sup 0/C. The observed surface temperatures are judged to be safe for operation in contact with loose-fill or batt-type insulations. It was observed that the power leads inside one fixture configuration are exposed to temperatures as high as 168/sup 0/C. The electrical insulation could, therefore, have a limited life. The properties of the internal fixture wiring were not, however, studied in detail.

  13. Apparatus to facilitate lengthening the life of incandescent lamps

    SciTech Connect (OSTI)

    Spissinger, F.H.

    1987-03-17T23:59:59.000Z

    An energizing circuit is described for an incandescent bulb comprising a transformer having a primary winding connectable to an AC mains source and first and second secondary windings for producing first and second voltages. The first secondary winding is connected to an input of a first full-wave rectifier means and the second secondary winding is connected to an input of a second full-wave rectifier means, the full-wave rectifier means having outputs connected in parallel across the bulb. The first voltage is sufficient to fully illuminate the bulb and the second voltage is sufficient to maintain the bulb warm but with little or no light output, a first switch being connected between the first secondary winding and the first rectifier means whereby, when the first switch is open, the bulb is energized solely by the second voltage.

  14. Advanced Manufacture of Reflectors

    SciTech Connect (OSTI)

    Angel, Roger [University of Arizona

    2014-12-17T23:59:59.000Z

    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

  15. Reflectors for SAR performance testing.

    SciTech Connect (OSTI)

    Doerry, Armin Walter

    2008-01-01T23:59:59.000Z

    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.

  16. Reflector system for a lighting fixture

    DOE Patents [OSTI]

    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

    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.

  17. Reflector system for a lighting fixture

    DOE Patents [OSTI]

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

    1998-01-01T23:59:59.000Z

    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.

  18. Reflector system for a lighting fixture

    DOE Patents [OSTI]

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

    1998-09-08T23:59:59.000Z

    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.

  19. Lamp bulb with integral reflector

    DOE Patents [OSTI]

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

    2001-01-01T23:59:59.000Z

    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.

  20. Development and Testing of Solar Reflectors

    SciTech Connect (OSTI)

    Kennedy, C.; Terwilliger, K.; Milbourne, M.

    2005-01-01T23:59:59.000Z

    To make concentrating solar power technologies more cost competitive, it is necessary to develop advanced reflector materials that are low in cost and maintain high reflectance for extended lifetimes under severe outdoor environments. The Advanced Materials Team performs durability testing of candidate solar reflectors at outdoor test sites and in accelerated weathering chambers. Several materials being developed by industry have been submitted for evaluation. These include silvered glass mirrors, aluminized reflectors, and front-surface mirrors. In addition to industry-supplied materials, NREL is funding the development of new, innovative reflectors, including a new commercial laminate reflector and an advanced solar reflective mirror (ASRM). To help commercialize the ASRM, a cost analysis was performed; it shows the total production cost could meet the goal. The development, performance, and durability of these candidate solar reflectors and cost analysis results will be described.

  1. Lamp with a truncated reflector cup

    DOE Patents [OSTI]

    Li, Ming; Allen, Steven C.; Bazydola, Sarah; Ghiu, Camil-Daniel

    2013-10-15T23:59:59.000Z

    A lamp assembly, and method for making same. The lamp assembly includes first and second truncated reflector cups. The lamp assembly also includes at least one base plate disposed between the first and second truncated reflector cups, and a light engine disposed on a top surface of the at least one base plate. The light engine is configured to emit light to be reflected by one of the first and second truncated reflector cups.

  2. Advanced Reflector and Absorber Materials (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2010-08-01T23:59:59.000Z

    Fact sheet describing NREL CSP Program capabilities in the area of advanced reflector and absorber materials: evaluating performance, determining degradation rates and lifetime, and developing new coatings.

  3. Marketing Sheep and Lambs in Texas.

    E-Print Network [OSTI]

    Winn, John H.; Miller, Jarvis E.

    1957-01-01T23:59:59.000Z

    numbers. The most important are the number of lambs saved, the number of sheep and lambs marketed and death loss. Shipments to other states account for approximately two-thirds of the net marketings. Salable receipts at Texas stockyards account... for approximately half of net marketings within the State. The remainder are divided between auction markets and direct and country sales. There is a seasonal pattern in sheep and lamb marketings. 'The patterns at stockyards and auction markets differ...

  4. 4-H Show Lamb Guide

    E-Print Network [OSTI]

    Craddock, Frank; Stultz, Ross

    1998-11-30T23:59:59.000Z

    ; ? syringes and needles; ? lamb blankets and/or socks; ? rope halters; ? hoof trimmers; ? hand shears; ? bolus gun for giving medication; ? back-pack drench gun; ? small portable feed troughs. 5 You may want the following optional equipment if you... caliber, while others may never develop this ability. Do not hesitate to ask for help from someone with these skills. It may be your county Extension agent, Future Farmers of America instructor, parent or another leader in your county. Also, many breeders...

  5. Distributed Bragg Reflectors With Reduced Optical Absorption

    DOE Patents [OSTI]

    Klem, John F. (Albuquerque, NM)

    2005-08-16T23:59:59.000Z

    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.

  6. Grain Sorghums Versus Corn for Fattening Lambs

    E-Print Network [OSTI]

    Jones, J. M. (John McKinley); Brewer, Roy A.

    1922-01-01T23:59:59.000Z

    total gain, lbs. ........... Average daily gain, lbs. ........... Average daily ration: 1. Grain, lbs.. ................. 2. Cottonseed meal, Ibs.. ....... 3. Alfalfa hay, lbs.. ............ Total feed consumed per lamb: 1. Grain, Ibs..... ................. 2. Cottonseed meal, Ibs. ........ 3. Alfalfa hay, lbs.. .... .; ...... Concentrates per 100 lbs. gain, lbs.. Hay per 100 lbs. gain. lbs. : ....... Cost of feed per 100 lbs. galn. ..... Averagefeedcostperlamb ........ Initial cost per lamb...

  7. Potential Environmental Impacts from the Metals in Incandescent, Compact Fluorescent Lamp (CFL), and Light-Emitting Diode (LED)

    E-Print Network [OSTI]

    Short, Daniel

    the lighting products are to be categorized as hazardous waste under existing U.S. federal and California state in lighting products without compromising their performance and useful lifespan. INTRODUCTION The U.S. Energy to increase energy efficiency for general lighting. Therefore, consumers are replacing incandescent light

  8. Solar central receiver heliostat reflector assembly

    DOE Patents [OSTI]

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

    1980-01-01T23:59:59.000Z

    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.

  9. Grain Sorghums Versus Corn for Fattening Lambs : Third Experiment.

    E-Print Network [OSTI]

    Jones, J. M. (Joseph McKinley); Dickson, R. E.

    1923-01-01T23:59:59.000Z

    . gain. ..... Average feed cbost per lamb. ....... Iqitial cost per lamb at feed lot at 13Mcentsperpound ......... Interest, labor, shipping and selling .. charges per head, estimated.. Total cost per lamb.. ............. Estimated selling weight... at Fort Worth, lbs. .......... .: ..... Sellinq price per lamb at Fort Worth ........... at $19.50 per cwt.. Estimated net profit per lamb.. .... Necessary selling price per cwt. to ................ break even.. 20 59.880 95.250 35.370 0.393 1...

  10. Livestock Risk Protection-Lamb: New Insurance Program to Help Ranchers Manage Lamb Price Risk

    E-Print Network [OSTI]

    Pena, Jose G.; Thompson, Bill; Bevers, Stan; Anderson, David P.

    2008-10-07T23:59:59.000Z

    USDA is offering a new insurance program to help livestock producers manage lamb price risk. This publication explains requirements of the program and the way it works....

  11. Caroline Twomey Lamb 2008 Collaborative Systems Thinking

    E-Print Network [OSTI]

    de Weck, Olivier L.

    , Systems Practice, Soft Systems Methodology: A 30-year retrospective. John Wiley and Sons, West Sussex© Caroline Twomey Lamb 2008 Collaborative Systems Thinking: Exploring systems thinking within teams 2008 Agenda · Motivation · Defining Systems Thinking ­ General Definitions ­ Engineering ­ Team

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

    SciTech Connect (OSTI)

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

    2012-01-01T23:59:59.000Z

    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).

  13. Dual annular rotating "windowed" nuclear reflector reactor control system

    DOE Patents [OSTI]

    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

    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.

  14. Lamb shift in muonic helium ion

    E-Print Network [OSTI]

    A. P. Martynenko

    2014-07-09T23:59:59.000Z

    The Lamb shift (2P_{1/2}-2S_{1/2}) in the muonic helium ion (mu ^4_2He)^+ is calculated with the account of contributions of orders alpha^3, alpha^4, alpha^5 and alpha^6. Special attention is given to corrections of the electron vacuum polarization, the nuclear structure and recoil effects. The obtained numerical value of the Lamb shift 1379.028 meV can be considered as a reliable estimate for the comparison with experimental data.

  15. SLAMBOT: Structural Health Monitoring Robot using Lamb

    E-Print Network [OSTI]

    Henderson, Thomas C.

    SLAMBOT: Structural Health Monitoring Robot using Lamb Waves Wenyi Wang, Thomas C. Henderson of a mobile robot and a computational sensor network ap- proach to perform structural health monitoring of ultrasound propagation through the material is used to define two structural health monitoring meth- ods: (1

  16. Compact directed percolation with movable partial reflectors

    E-Print Network [OSTI]

    Ronald Dickman; Daniel ben-Avraham

    2002-07-08T23:59:59.000Z

    We study a version of compact directed percolation (CDP) in one dimension in which occupation of a site for the first time requires that a "mine" or antiparticle be eliminated. This process is analogous to the variant of directed percolation with a long-time memory, proposed by Grassberger, Chate and Rousseau [Phys. Rev. E 55, 2488 (1997)] in order to understand spreading at a critical point involving an infinite number of absorbing configurations. The problem is equivalent to that of a pair of random walkers in the presence of movable partial reflectors. The walkers, which are unbiased, start one lattice spacing apart, and annihilate on their first contact. Each time one of the walkers tries to visit a new site, it is reflected (with probability r) back to its previous position, while the reflector is simultaneously pushed one step away from the walker. Iteration of the discrete-time evolution equation for the probability distribution yields the survival probability S(t). We find that S(t) \\sim t^{-delta}, with delta varying continuously between 1/2 and 1.160 as the reflection probability varies between 0 and 1.

  17. A New Relation between Lamb Shift Energies

    E-Print Network [OSTI]

    Hiroaki Kubo; Takehisa Fujita; Naohiro Kanda; Hiroshi Kato; Yasunori Munakata; Sachiko Oshima; Kazuhiro Tsuda

    2010-03-26T23:59:59.000Z

    We derive a new relation between the observed Lamb shift energies of hydrogen and muonium atoms. The relation is based on the non-relativistic description of the Lamb shift, and the proper treatment of the reduced mass of electron and target particles (proton and muon) leads to the new formula which is expressed as $\\displaystyle{{\\Delta E^{(H)}_{2s_{1/2}}\\over \\Delta E^{(\\mu)}_{2s_{1/2}}} =({1+{m_e\\over m_\\mu}\\over 1+{m_e\\over M_p}})^3}$. This relation achieves an excellent agreement with experiment and presents an important QED test free from the cutoff momentum $\\Lambda$.

  18. Impact of HFIR LEU Conversion on Beryllium Reflector Degradation Factors

    SciTech Connect (OSTI)

    Ilas, Dan [ORNL

    2013-10-01T23:59:59.000Z

    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.

  19. Imaging with Spherically Bent Crystals or Reflectors

    SciTech Connect (OSTI)

    Bitter, M; Hill, K W; Scott, S; Ince-Cushman, A; Reinke, M; Podpaly, Y; Rice, J E; Beiersdorfer, P

    2010-06-01T23:59:59.000Z

    This paper consists of two parts: Part I describes the working principle of a recently developed x-ray imaging crystal spectrometer, where the astigmatism of spherically bent crystals is being used with advantage to record spatially resolved spectra of highly charged ions for Doppler measurements of the ion-temperature and toroidal plasmarotation- velocity profiles in tokamak plasmas. This type of spectrometer was thoroughly tested on NSTX and Alcator C-Mod, and its concept was recently adopted for the design of the ITER crystal spectrometers. Part II describes imaging schemes, where the astigmatism has been eliminated by the use of matched pairs of spherically bent crystals or reflectors. These imaging schemes are applicable over a wide range of the electromagnetic radiation, which includes microwaves, visible light, EUV radiation, and x-rays. Potential applications with EUV radiation and x-rays are the diagnosis of laserproduced plasmas, imaging of biological samples with synchrotron radiation, and lithography.

  20. Method of making reflecting film reflector

    DOE Patents [OSTI]

    Cottingham, James G. (Center Moriches, NY)

    1980-01-01T23:59:59.000Z

    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.

  1. Optical Durability of Candidate Solar Reflectors for Concentrating Solar Power

    SciTech Connect (OSTI)

    Kennedy, C. E.; Terwilliger, K.

    2007-01-01T23:59:59.000Z

    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.

  2. Lt Col Glen Lehman Organizational Leadership & the Sacrificial Lamb

    E-Print Network [OSTI]

    Pantaleone, Jim

    - UAA Produce innovative, elite multi-faceted Lieutenants - Det 001 Give people the power to share Leadership & the Sacrificial Lamb 7 Organizational Leadership & the Sacrificial Lamb Lead People Manage Development Quality of Life Lead People Manage Resources Improve the Organization Execute the Mission

  3. Lamb customer satisfaction in two Texas cities - - Dallas and Houston

    E-Print Network [OSTI]

    Maddock, Travis David

    2001-01-01T23:59:59.000Z

    An in-home lamb study evaluated consumer ratings from users of lamb (at least once per month) as influenced by cut (blade chop, rib chop, loin chop, and leg steak), demographics, preparation method, and degree of doneness. Consumers in Dallas...

  4. A Folk Tale of a Sheep and her Lamb

    E-Print Network [OSTI]

    Bkra shis bzang po

    2009-11-17T23:59:59.000Z

    Folk Tale of a Sheep and her Lamb Translation of title Description (to be used in archive entry) Tshe 'dzin tells a folktale in which a snake, a donkey, a pigeon, and a dog helped a other sheep and her lamb. Genre or type (i.e. epic, song...

  5. Tuned Lamb Wave Excitation and Detection with Piezoelectric Wafer Active Sensors for Structural Health Monitoring

    E-Print Network [OSTI]

    Giurgiutiu, Victor

    and detect tuned Lamb waves for structural health monitoring is explored. First, a brief review of Lamb waves mode Lamb waves is demonstrated as an effective structural health monitoring method. Key Words: structural health monitoring, Lamb waves, piezoelectric wafer active sensors, aging aircraft, cracks, damage

  6. Space Reflector Materials for Prometheus Application

    SciTech Connect (OSTI)

    J. Nash; V. Munne; LL Stimely

    2006-01-31T23:59:59.000Z

    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.

  7. Neutronic evaluation of GCFR core diluents and reflectors

    E-Print Network [OSTI]

    Yu, Kun, 1974-

    2003-01-01T23:59:59.000Z

    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 ...

  8. Solar cell comprising a plasmonic back reflector and method therefor

    DOE Patents [OSTI]

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

    2014-11-25T23:59:59.000Z

    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.

  9. Histological, physical, and chemical factors of various lamb muscles 

    E-Print Network [OSTI]

    Tschirhart, Tara Elizabeth

    2004-09-30T23:59:59.000Z

    Muscles (n = 18) were dissected from each side of twenty lamb carcasses. Muscles from the right sides of the carcasses were used to determine weight, length, width, minimum and maximum thickness, objective color measurements, ...

  10. Application of the OPTEX method for computing reflector parameters

    SciTech Connect (OSTI)

    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

    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)

  11. Nutritional, physiological, and behavioral effects of confinement on lambs 

    E-Print Network [OSTI]

    Kapp, Gabrielle Maria

    1995-01-01T23:59:59.000Z

    NUTRITIONAL, PHYSIOLOGICAL, AND BEHAVIORAL EFFECTS OF CONFINEMENT ON LAMBS A Thesis by GABRIELLE MARIA KAPP Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements for the degree MASTER... OF SCIENCE May 1995 Major Subject: Animal Science NUTRITIONAL, PHYSIOLOGICAL, AND BEHAVIORAL EFFECTS OF CONFINEMENT ON LAMBS A Thesis by GABRIELLE MARIA KAPP Submitted to Texas A@M University in partial fulfillment of the requirements for the degree...

  12. Nutritional, physiological, and behavioral effects of confinement on lambs

    E-Print Network [OSTI]

    Kapp, Gabrielle Maria

    1995-01-01T23:59:59.000Z

    NUTRITIONAL, PHYSIOLOGICAL, AND BEHAVIORAL EFFECTS OF CONFINEMENT ON LAMBS A Thesis by GABRIELLE MARIA KAPP Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements for the degree MASTER... OF SCIENCE May 1995 Major Subject: Animal Science NUTRITIONAL, PHYSIOLOGICAL, AND BEHAVIORAL EFFECTS OF CONFINEMENT ON LAMBS A Thesis by GABRIELLE MARIA KAPP Submitted to Texas A@M University in partial fulfillment of the requirements for the degree...

  13. A powerful reflector in relativistic backward wave oscillator

    SciTech Connect (OSTI)

    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

    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.

  14. Soot particle sizing during high-pressure Diesel spray combustion via time-resolved laser-induced incandescence

    SciTech Connect (OSTI)

    Ryser, R.; Gerber, T.; Dreier, T. [Reaction Analysis Group, Department of General Energy, Paul Scherrer Institute, CH-5232 Villigen PSI (Switzerland)

    2008-11-15T23:59:59.000Z

    Single-pulse time-resolved laser-induced incandescence (TiRe-LII) signal transients from soot particulates were acquired during unsteady high pressure Diesel combustion in a constant volume cell for typical top dead center conditions during a Diesel engine cycle. Measurements were performed for initial gas pressures between 1 and 3 MPa, injection pressures between 50 and 130 MPa and laser probe timings between 5 and 16 ms after start of fuel injection. In separate experiments and for the same cell operating conditions gas temperatures were deduced from spectrally resolved soot pyrometry measurements. Implementing the LII model of Kock et al. [Combust. Flame 147 (2006) 79-92] ensemble mean soot particle diameters were evaluated from least-squares fitting of theoretical cooling curves to experimental TiRe-LII signal transients. Since in the experiments the environmental gas temperature and the width of an assumed particle size distribution were not known, the effects of the initial choice of these parameters on retrieved particle diameters were investigated. It is shown that evaluated mean particle diameters are only slightly biased by the choice of typical size distribution widths and gas temperatures. For a fixed combustion phase mean particle diameters are not much affected by gas pressure, however they become smaller at high fuel injection pressure. At a mean chamber pressure of 1.39 MPa evaluated mean particle diameters increased by a factor of two for probe delays between 5 and 16 ms after start of injection irrespective of the choices of first-guess fitting variables, indicating a certain robustness of data analysis procedure. (author)

  15. Soot particle sizing during high-pressure Diesel spray combustion via time-resolved laser-induced incandescence

    SciTech Connect (OSTI)

    Ryser, R.; Gerber, T.; Dreier, T. [Reaction Analysis Group, Department of General Energy, Paul Scherrer Institute, CH-5232 Villigen (Switzerland)

    2009-01-15T23:59:59.000Z

    Single-pulse time-resolved laser-induced incandescence (TiRe-LII) signal transients from soot particulates were acquired during unsteady high pressure Diesel combustion in a constant volume cell for typical top dead center conditions during a Diesel engine cycle. Measurements were performed for initial gas pressures between 1 and 3 MPa, injection pressures between 50 and 130 MPa and laser probe timings between 5 and 16 ms after start of fuel injection. In separate experiments and for the same cell operating conditions gas temperatures were deduced from spectrally resolved soot pyrometry measurements. Implementing the LII model of Kock et al. [Combust. Flame 147 (20006) 79-92] ensemble mean soot particle diameters were evaluated from least-squares fitting of theoretical cooling curves to experimental TiRe-LII signal transients. Since in the experiments the environmental gas temperature and the width of an assumed particle size distribution were not known, the effects of the initial choice of these parameters on retrieved particle diameters were investigated. It is shown that evaluated mean particle diameters are only slightly biased by the choice of typical size distribution widths and gas temperatures. For a fixed combustion phase mean particle diameters are not much affected by gas pressure, however they become smaller at high fuel injection pressure. At a mean chamber pressure of 1.39 MPa evaluated mean particle diameters increased by a factor of two for probe delays between 5 and 16 ms after start of injection irrespective of the choices of first-guess fitting variables, indicating a certain robustness of data analysis procedure. (author)

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

    DOE Patents [OSTI]

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

    1994-03-29T23:59:59.000Z

    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.

  17. 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.pye@student.unsw.edu.au Abstract The Compact Linear Fresnel Reflector (CLFR) is a linear-concentrating solar thermal energy system The Compact Linear Fresnel Reflector (CLFR) was first conceived of in 1992-1993 and was patented in 1995

  18. Birefringent omnidirectional reflector Kate Kaminska and Kevin Robbie

    E-Print Network [OSTI]

    Robbie, Kevin

    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

  19. MODE SELECTIVE ACTUATOR-SENSOR SYSTEM FOR LAMB WAVE-BASED STRUCTURAL HEALTH MONITORING

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    MODE SELECTIVE ACTUATOR-SENSOR SYSTEM FOR LAMB WAVE-BASED STRUCTURAL HEALTH MONITORING Daniel Braunschweig, Germany daniel.schmidt@dlr.de ABSTRACT Structural Health Monitoring (SHM) based on Lamb waves is developed. KEYWORDS : Structural health monitoring, Lamb waves, higher order plate theory, actuator

  20. Propagation of guided Lamb waves in bonded specimens using piezoelectric wafer active sensors

    E-Print Network [OSTI]

    Giurgiutiu, Victor

    Propagation of guided Lamb waves in bonded specimens using piezoelectric wafer active sensors and principles used for generation and propagation of ultrasonic guided waves (Lamb waves) using piezoelectric wafer active sensors (PWAS). Keywords: Ultrasonic, Lamb waves, Damage detection, NDE, Wave propagation

  1. Effect of duration of transport on indicators of stress in lambs

    E-Print Network [OSTI]

    Krawczel, Peter Downs

    2007-04-25T23:59:59.000Z

    Recommendations for the transportation of lambs from a European Commission, which required rest stops of 6 or 24 h, every 8 h, were evaluated for efficacy of reducing stress indicators using Rambouillet x Suffolk lambs (17.6 �± 0.5 kg). The lambs...

  2. Lamb shift enhancement and detection in strongly driven superconducting circuits

    E-Print Network [OSTI]

    Vera Gramich; Simone Gasparinetti; Paolo Solinas; Joachim Ankerhold

    2014-05-06T23:59:59.000Z

    It is shown that strong driving of a quantum system substantially enhances the Lamb shift induced by broadband reservoirs which are typical for solid-state devices. By varying drive parameters the impact of environmental vacuum fluctuations with continuous spectral distribution onto system observables can be tuned in a distinctive way. This provides experimentally feasible measurement schemes for the Lamb shift in superconducting circuits based on Cooper pair boxes, where it can be detected either in shifted dressed transition frequencies or in pumped charge currents.

  3. Control of the Lamb shift by a driving field

    E-Print Network [OSTI]

    Yang, Shuai; Zheng, Hang; Hong, Ran; Zhu, Shi-Yao; Zubairy, M. Suhail

    2010-01-01T23:59:59.000Z

    A unitary transformation approach is used to study the energy level shift of the atom coupled to both a vacuum electromagnetic field and a driving laser. The Lamb shift of the energy levels is shown to depend on the Rabi frequency and the detuning...

  4. Protein levels for Chios lambs given high concentrate diets

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    /kg dry matter) and lucerne hay. Following weaning all lambs were offered the same concentrate mixture ad libitum plus 0.1 kg lucerne hay (182 g CP/kg dry matter) daily. The animals were allocated on the three) and lucerne hay (0.1 kg/head daily) were offered in separate feed containers. The three diets were composed

  5. Resonant driving and ksymmetry Jeroen S.W. Lamb \\Lambda

    E-Print Network [OSTI]

    Lamb, Jeroen

    Resonant driving and k­symmetry Jeroen S.W. Lamb \\Lambda Institute for Theoretical Physics--60 PACS: 0545,0220 Abstract A particular type of `resonant' periodic driving of a symmetric dynamical of the kth iterate of L, then U is called a (reversing) k­symmetry of L [9]. Along the same lines, a group

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

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

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

  7. Optical device with low electrical and thermal resistance bragg reflectors

    DOE Patents [OSTI]

    Lear, Kevin L. (Albuquerque, NM)

    1996-01-01T23:59:59.000Z

    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.

  8. Optical device with low electrical and thermal resistance Bragg reflectors

    DOE Patents [OSTI]

    Lear, K.L.

    1996-10-22T23:59:59.000Z

    A compound-semiconductor optical device and method are disclosed. 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. 16 figs.

  9. Cutability, bacterial control and packaging effects on the merchandising of lamb

    E-Print Network [OSTI]

    Varnadore, William Lee

    1972-01-01T23:59:59.000Z

    -life, quality and palata- bility of lamb cuts. Lamb carcasses were fabricated into 384 primal cuts which were used in packaging studies designed to compare chamber, rotating nozzle and stationary nozzle vacuum machines; barrier bags, saran bags, soft film... wraps, cheesecloth and paraffin coat1ngs, and saran pouches; and high vacuum, low vacuum and carbon dioxide atmospheres. Lamb cuts that were stored in barr1er bags under high levels of vacuum created in a chamber machine, satis- factorily maintained...

  10. The muonic hydrogen Lamb shift and the proton radius

    E-Print Network [OSTI]

    Clara Peset

    2014-11-14T23:59:59.000Z

    We obtain a model independent expression for the muonic hydrogen Lamb shift up to $\\mathcal O (m_\\mu \\alpha^6, m_\\mu \\alpha^5 \\frac{m_\\mu^2}{m_\\rho^2})$. The hadronic effects are controlled by the chiral theory, which allows for their model independent determination. We give their complete expression including the pion and Delta particles. Out of this analysis and the experimental measurement of the muonic hydrogen Lamb shift we determine the electromagnetic proton radius: $r_p$=0.8412(15) fm. This number is at 6.8$\\sigma$ variance with respect to the CODATA value. The parametric control of the uncertainties allows us to obtain a model independent determination of the error, which is dominated by hadronic effects.

  11. RUMEN DIGESTION PARAMETERS IN LAMBS FED WITH PELLETED DIET

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    RUMEN DIGESTION PARAMETERS IN LAMBS FED WITH PELLETED DIET A. PETKOV E.I. ENEV Department of animal with pelleted feed containing 25 % alfalfa meal, 35 % maize, 9.9 % barley, 7.2 % wheat, 21.5 % sunflower oil ration was 0.200 kg pelleted feed and at the age of 4 months, 0.400 kg. The pelleted feed was given twice

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

    DOE Patents [OSTI]

    Kare, Jordin T. (Pleasanton, CA)

    1992-01-01T23:59:59.000Z

    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.

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

    DOE Patents [OSTI]

    Kare, J.T.

    1992-10-06T23:59:59.000Z

    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.

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

    E-Print Network [OSTI]

    Sites, James R.

    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-FILM SOLAR CELLS The CdTe thin-film solar cell has a large absorption coefficient and high theoretical

  15. What is a seismic reflector like? Nathalie Favretto-Cristini1

    E-Print Network [OSTI]

    Boyer, Edmond

    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

  16. ieee transactions on ultrasonics, ferroelectrics, and frequency control, vol. 50, no. 9, september 2003 1191 Capacitive Micromachined Ultrasonic Lamb

    E-Print Network [OSTI]

    Khuri-Yakub, Butrus T. "Pierre"

    to ex- cite and receive Lamb waves on a silicon substrate. An equivalent circuit model of the power that couples into the Lamb wave is due to energy in the vibrat- ing membrane that is transferred

  17. 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

  18. Determination of Properties of Composite Materials from the Lamb Wave Propagation

    E-Print Network [OSTI]

    Kreinovich, Vladik

    Determination of Properties of Composite Materials from the Lamb Wave Propagation: Probabilistic the Lamb waves propagate. Their propagation is de- termined by the dynamic elastic constants £¥¤¦¨§ , so we the ultrasound waves propagate in this composite material, and to reconstruct the values £ ¤¦§ from the results

  19. WAVELET BASED CHARACTERIZATION OF ACOUSTIC ATTENUATION IN POLYMERS USING LAMB WAVE MODES

    E-Print Network [OSTI]

    Boyer, Edmond

    spectrum depending on their chemical structure and stoichiometry. Guided wave techniques are widely used demonstrates that guided wave techniques can be effectively utilized for material characterization, where of acrylic (PMMA, polymethyl methacrylate), thermoplastic, using guided Lamb wave. Lamb waves are generated

  20. Histopathological changes in ewe lambs exposed to prolonged diet on lucerne

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Short note Histopathological changes in ewe lambs exposed to prolonged diet on lucerne M Barberan J during nine months on lucerne as compared with 10 controls reared on ryegrass. These changes consisted. The mammary glands of lambs reared on lucerne were significantly heavier and showed secretory activity

  1. Distributed bragg reflector using AIGaN/GaN

    DOE Patents [OSTI]

    Waldrip, Karen E.; Lee, Stephen R.; Han, Jung

    2004-08-10T23:59:59.000Z

    A supported distributed Bragg reflector or superlattice structure formed from a substrate, a nucleation layer deposited on the substrate, and an interlayer deposited on the nucleation layer, followed by deposition of (Al,Ga,B)N layers or multiple pairs of (Al,Ga,B)N/(Al,Ga,B)N layers, where the interlayer is a material selected from AlN, Al.sub.x Ga.sub.1-x N, and AlBN with a thickness of approximately 20 to 1000 angstroms. The interlayer functions to reduce or eliminate the initial tensile growth stress, thereby reducing cracking in the structure. Multiple interlayers utilized in an AlGaN/GaN DBR structure can eliminate cracking and produce a structure with a reflectivity value greater than 0.99.

  2. Modified gaseous atmospheres for storage of beef, lamb and pork

    E-Print Network [OSTI]

    Davis, George Theodore

    1979-01-01T23:59:59.000Z

    ) ( Member ) (He d of Depar ent) December 1979 ABSTRACT Modified Gaseous Atmospheres for Storage of Bee f, Pork and Lamb (December 1979) George Theodore Davis III, B. S. , Texas AsM University Co-Chairmen of Advisory Committee: Dr. Z. L. Carpenter...MODIFIED G'~. ' . . OUS ATMOSPHERI. S FOR STORAGE OI REEF, I. PMB AND PORK A Thesis by GEORGE THEODORE DAVIS I II Submitted to thc. graduate college of Texas AsM University in partial fulfillment of the rec, u. 'rement fox the degree...

  3. Lamb County Electric Coop, Inc | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnual SiteofEvaluatingGroup |Jilin Zhongdiantou NewKorea PartsLLNLLaizhou LunengLamar CountyLamb

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

    E-Print Network [OSTI]

    Kim, Ryoung-Han

    2006-04-12T23:59:59.000Z

    -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...

  5. The use of dietary antibiotics and implanted ovarian hormones on self fed, fattening lambs

    E-Print Network [OSTI]

    Packett, Leonard V

    1956-01-01T23:59:59.000Z

    Combination o f These, , 'ate rial s The Effects of ChlortetracYcline and Hormone ' upon the Average Paily , '-'. alt and Eater Con sar. ption on '/. ether Lambs, Experiment I . . . . . . . $5 Note ir crease in size of q-enitc-uri;. ar. . ; tracts... and fettering lambs. Feeder lambs receiving 5 and 15 r. g. of chlortet- racycline daily had. a higher rate of gain and re-uired and 20 per cent, respectively, less concentrate per unit gain than did their controls. Jordan (1952) found no adverse effects...

  6. Photodetector with absorbing region having resonant periodic absorption between reflectors

    DOE Patents [OSTI]

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

    1995-02-14T23:59:59.000Z

    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.

  7. The role of yield grade and fat deposition on the cutability of lamb carcasses

    E-Print Network [OSTI]

    Fritz, Kristina Danielle

    1996-01-01T23:59:59.000Z

    assigned randomly to one of five yield grade treatment groups (n=18), devised to simulate the fat thickness ranges designated by the USDA yield grade equation. The lambs were evaluated periodically and visually appraised by a team of three experienced...

  8. The effect of cisclomiphene on lambing rate and synchronization in sheep

    E-Print Network [OSTI]

    Beaver, Larry Jeff

    1972-01-01T23:59:59.000Z

    THE EFFECT OF CISCLOMIPHENE ON LAMBING RATE AND SYNCHRONIZATION IN SHEEP A Thesis by LARRY JEFF BEAVER Submitted to the Graduate College of Texas A&M University in partial fulfillment of the requirement for the degree of MASTER OF SCIENCE... December 1972 Major Subject: Physiology of Reproduction THE EFFECT OF CISCLOMIPHENE ON LAMBING RATE AND SYNCHRONIZATION IN SHEEP A Thesis by LARRY JEFF BEAVER Approved as to style and content by: C azrman o Commrttee (Head of Department @C~g Me...

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

    SciTech Connect (OSTI)

    Harrison, T.D.

    1981-01-01T23:59:59.000Z

    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.

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

    SciTech Connect (OSTI)

    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

    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.

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

    DOE Patents [OSTI]

    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

    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.

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

    SciTech Connect (OSTI)

    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

    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.

  13. Performance improvements of symmetry-breaking reflector structures in nonimaging devices

    DOE Patents [OSTI]

    Winston, Roland

    2004-01-13T23:59:59.000Z

    A structure and method for providing a broken symmetry reflector structure for a solar concentrator device. The component of the optical direction vector along the symmetry axis is conserved for all rays propagated through a translationally symmetric optical device. This quantity, referred to as the translational skew invariant, is conserved in rotationally symmetric optical systems. Performance limits for translationally symmetric nonimaging optical devices are derived from the distributions of the translational skew invariant for the optical source and for the target to which flux is to be transferred. A numerically optimized non-tracking solar concentrator utilizing symmetry-breaking reflector structures can overcome the performance limits associated with translational symmetry.

  14. Incandescent Lighting | 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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742 33Frequently20,000 RussianBy: Thomas P.Department ofMaking | Department ofGive Drivers

  15. DOE Publishes Final Rule for the Request for Exclusion of 100...

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

    Request for Exclusion of 100 Watt R20 Short Incandescent Reflector Lamps from Energy Conservation Standards DOE Publishes Final Rule for the Request for Exclusion of 100 Watt...

  16. 2014-12-30 Issuance: Energy Conservation Standard for General...

    Energy Savers [EERE]

    2014-12-30 Issuance: Energy Conservation Standard for General Service Fluorescent Lamps and Incandescent Reflector Lamps; Final Rule 2014-12-30 Issuance: Energy Conservation...

  17. Westinghouse Lighting: Noncompliance Determination (2010-CE-09/1001)

    Broader source: Energy.gov [DOE]

    DOE issued a Notice of Noncompliance Determination to Westinghouse Lighting Corporation finding that various models of incandescent reflector lamps do not comport with the energy conservation standards.

  18. Buying an Appliance this Holiday Season? ENERGY STAR Products...

    Office of Environmental Management (EM)

    Freezers Room air conditioners Televisions Clothes washers Dishwashers Battery chargers Water heaters Fluorescent lamp ballasts Incandescent reflector lamps If your appliance has...

  19. Propagation of Lamb waves in one-dimensional quasiperiodic composite thin plates: A split of phonon band gap

    E-Print Network [OSTI]

    Li, Baowen

    Propagation of Lamb waves in one-dimensional quasiperiodic composite thin plates: A split of phonon the propagation of Lamb waves in one-dimensional quasiperiodic composite thin plates made of tungsten B spectra, Raman scattering spectra, and propagating modes of acoustic waves on corrugated surfaces.14

  20. Application of artificial neural networks for damage indices classification with the use of Lamb waves for the aerospace structures.

    E-Print Network [OSTI]

    Application of artificial neural networks for damage indices classification with the use of Lamb of view. Artificial neural network has been used for the classification of fatigue cracks and artificial@agh.edu.pl, *corresponding author Keywords: NDT, Ultrasonic testing, Lamb waves, Artificial intelligence, Artificial Neural

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

    E-Print Network [OSTI]

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

    2014-05-12T23:59:59.000Z

    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.

  2. 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

  3. 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

  4. Deployable Tensegrity Reflectors for Small Satellites1 A.G. Tibert2 and S. Pellegrino3

    E-Print Network [OSTI]

    Pellegrino, Sergio

    of Cambridge, Trumpington Street, Cambridge, CB2 1PZ, U.K. Abstract Future small satellite missions require low-cost, precision reflector structures with large aperture that can be packaged in a small envelope. Existing that deploys two identical cable nets (front and rear nets) interconnected by tension ties; the reflecting mesh

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

    SciTech Connect (OSTI)

    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

    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)

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

    SciTech Connect (OSTI)

    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

    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.

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

    E-Print Network [OSTI]

    Nehorai, Arye

    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

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

    E-Print Network [OSTI]

    Kim, Ryoung-Han

    2006-04-12T23:59:59.000Z

    Bragg grating reflectors etched in amorphous silicon overlay films have been integrated with Ti:LiNbO3 optical waveguides. With a 12.5 mm long grating segment and an etch depth of ~ 93 nm in a 105 nm-thick silicon film, a narrow (0.05 nm) spectral...

  9. Intelligent feature selection techniques for pattern classification of Lamb wave signals

    SciTech Connect (OSTI)

    Hinders, Mark K.; Miller, Corey A. [College of William and Mary, Department of Applied Science, Williamsburg, Virginia 23187-8795 (United States)

    2014-02-18T23:59:59.000Z

    Lamb wave interaction with flaws is a complex, three-dimensional phenomenon, which often frustrates signal interpretation schemes based on mode arrival time shifts predicted by dispersion curves. As the flaw severity increases, scattering and mode conversion effects will often dominate the time-domain signals, obscuring available information about flaws because multiple modes may arrive on top of each other. Even for idealized flaw geometries the scattering and mode conversion behavior of Lamb waves is very complex. Here, multi-mode Lamb waves in a metal plate are propagated across a rectangular flat-bottom hole in a sequence of pitch-catch measurements corresponding to the double crosshole tomography geometry. The flaw is sequentially deepened, with the Lamb wave measurements repeated at each flaw depth. Lamb wave tomography reconstructions are used to identify which waveforms have interacted with the flaw and thereby carry information about its depth. Multiple features are extracted from each of the Lamb wave signals using wavelets, which are then fed to statistical pattern classification algorithms that identify flaw severity. In order to achieve the highest classification accuracy, an optimal feature space is required but it’s never known a priori which features are going to be best. For structural health monitoring we make use of the fact that physical flaws, such as corrosion, will only increase over time. This allows us to identify feature vectors which are topologically well-behaved by requiring that sequential classes “line up” in feature vector space. An intelligent feature selection routine is illustrated that identifies favorable class distributions in multi-dimensional feature spaces using computational homology theory. Betti numbers and formal classification accuracies are calculated for each feature space subset to establish a correlation between the topology of the class distribution and the corresponding classification accuracy.

  10. Photovoltaic generator with a spherical imaging lens for use with a paraboloidal solar reflector

    DOE Patents [OSTI]

    Angel, Roger P

    2013-01-08T23:59:59.000Z

    The invention is a generator for photovoltaic conversion of concentrated sunlight into electricity. A generator according to the invention incorporates a plurality of photovoltaic cells and is intended for operation near the focus of a large paraboloidal reflector pointed at the sun. Within the generator, the entering concentrated light is relayed by secondary optics to the cells arranged in a compact, concave array. The light is delivered to the cells at high concentration, consistent with high photovoltaic conversion efficiency and low cell cost per unit power output. Light enters the generator, preferably first through a sealing window, and passes through a field lens, preferably in the form of a full sphere or ball lens centered on the paraboloid focus. This lens forms a concentric, concave and wide-angle image of the primary reflector, where the intensity of the concentrated light is stabilized against changes in the position of concentrated light entering the generator. Receiving the stabilized light are flat photovoltaic cells made in different shapes and sizes and configured in a concave array corresponding to the concave image of a given primary reflector. Photovoltaic cells in a generator are also sized and interconnected so as to provide a single electrical output that remains high and stable, despite aberrations in the light delivered to the generator caused by, for example, mispointing or bending of the primary reflector. In some embodiments, the cells are set back from the image formed by the ball lens, and part of the light is reflected onto each cell small secondary reflectors in the form of mirrors set around its perimeter.

  11. Comparison of systems for the distribution of lamb carcasses and wholesale cuts

    E-Print Network [OSTI]

    Tatum, Joseph Daryl

    1976-01-01T23:59:59.000Z

    COMPARISON OF SYSTEMS FOR THE DISTRIBUTION OF LAMB CARCASSES AND WHOLESALE CUTS A Thesis by JOSEPH DARYL TATUM Submitted to the Graduate College of Texas A&M University in partial fulfillment of the requirement for the degree of MASTER... OF SCIENCE Play 1976 M+or SubJect: Animal Science (Meats) COMPARISON OF SYSTEMS FOR THE DISTRIBUTION OF LAMB CARCASSES AND WHOLESALE CUTS A Thesis by JOSEPH DARYL TATUM Approved as to style and content by: 0) o (Co-C a man of Committee) ( -Chairman...

  12. 4. P1,P2 (P1), (P2) 2009Lamb shift

    E-Print Network [OSTI]

    1. 2. P1 3. P2 4. P1,P2 (P1), (P2) 1 #12; =SUSY = () SUSY()? CP CP ...... LHC () 2011 2012 #12; #12;2009Lamb shift QEDloop-) 0 6 Lamb shift Dirac 212p s1 212s QED 232p 212p s1 212s 232p #12;7 2009 W M o Cu #12;8 2010 () #12;9 2011 9 RF #12; RF H2 H+H 1S+e 2S1

  13. Consumer Attitudes and Handling Practices of Retailers for Lamb, Mutton and Goat.

    E-Print Network [OSTI]

    Stelly, Randall

    1959-01-01T23:59:59.000Z

    with respect to carcass and wholesale cuts and grade and weight of cuts, (4) seasonality of sales and (5) promotion policies and practices in selling lamh, mutton and goat meat. Types of Retail Stores Retail meat stores included in this stud! were... About 50 percent of the independent meat retailers and 2 out of 3 retailers in chain stores stated that they purchase wholesale cuts of lamb. Wholesale cuts purchased most often by inde- pendent retailers are leg, rack or rib chops and shank of lamb...

  14. Measurement of the nuclear polarization of hydrogen and deuterium molecules using a Lamb-shift polarimeter

    SciTech Connect (OSTI)

    Engels, Ralf, E-mail: r.w.engels@fz-juelich.de; Gorski, Robert; Grigoryev, Kiril; Mikirtychyants, Maxim; Rathmann, Frank; Seyfarth, Hellmut; Ströher, Hans; Weiss, Philipp [Institut für Kernphysik, Forschungszentrum Jülich, Wilhelm-Johnen-Str. 1, 52428 Jülich (Germany); Kochenda, Leonid; Kravtsov, Peter; Trofimov, Viktor; Tschernov, Nikolay; Vasilyev, Alexander; Vznuzdaev, Marat [Laboratory of Cryogenic and Superconductive Technique, Petersburg Nuclear Physics Institute, Orlova Roscha 1, 188300 Gatchina (Russian Federation); Schieck, Hans Paetz gen. [Institut für Kernphysik, Universität zu Köln, Zülpicher Str. 77, 50937 Köln (Germany)

    2014-10-15T23:59:59.000Z

    Lamb-shift polarimeters are used to measure the nuclear polarization of protons and deuterons at energies of a few keV. In combination with an ionizer, the polarization of hydrogen and deuterium atoms was determined after taking into account the loss of polarization during the ionization process. The present work shows that the nuclear polarization of hydrogen or deuterium molecules can be measured as well, by ionizing the molecules and injecting the H{sub 2}{sup +} (or D{sub 2}{sup +}) ions into the Lamb-shift polarimeter.

  15. Dual Use of Traveling and Standing Lamb Waves for Structural Health Monitoring

    E-Print Network [OSTI]

    Giurgiutiu, Victor

    Dual Use of Traveling and Standing Lamb Waves for Structural Health Monitoring Victor Giurgiutiu@sc.edu ABSTRACT Structural health monitoring (SHM) is an emerging technology with great potential in structural to structures. The paper presents results on the dual use of PWAS for structural health monitoring through: (a

  16. WERE AQUEOUS RIPPLES ON MARS FORMED BY FLOWING BRINES? MICHAEL P. LAMB, JOHN P. GROTZINGER

    E-Print Network [OSTI]

    WERE AQUEOUS RIPPLES ON MARS FORMED BY FLOWING BRINES? MICHAEL P. LAMB, JOHN P. GROTZINGER are not observed. Recent thermodynamic modeling indicates that these brines could have had higher densities (by up whether ripples could have been stable bed forms under flowing Martian brines. To this end, we compiled

  17. Effect of different methods of processing grain sorghum on feedlot performance and carcass characteristics of lambs

    E-Print Network [OSTI]

    Skrivanek, Joseph John

    1976-01-01T23:59:59.000Z

    killed on February 25, and all straightbred lambs killed on Febru- ary 26, 1969. Slaughter data included live weight, warm carcass weight, pelt we1ght and full and empty reticulo-rumen weights. Two days later, chilled carcass weights were taken...

  18. Certain antibiotics in the experimental formation of urinary calculi in fattening lambs

    E-Print Network [OSTI]

    Robbins, Joe Dennis

    1959-01-01T23:59:59.000Z

    a ~ ~ s ~ ~ ' ~ 23 Calcine ~ i ~ ~ ~ ~ ~ ~ ~ ~ 25 Pciasailgl ~ ~ ~ ~ ~ j ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ 2P Scdina ~ ~ ~ ~ ~ o ~ ~ ~ ~ ~ ~ ~ ~ ' ~ ~ ~ ' 29 Urine PH ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ )0 SU%ART ~ ~ ~ i ~ ~ ' ~ ~ ~ ~ ~ ' ~ ~ ~ ~ ~ ~ ~ i... 4. Analysis oi Variance of Gains Due to Treatment . . . . . 19 Analysis of Variance of Gains for Lambs With and , Without Calculi i ~ ~ ~ ~ ~ \\ . ~ ~ ~ ~ i ~ ~ ~ ~ i ~ ~ 20 6. Lot Noans of Serum M. ncral Constituento and Urine p...

  19. Original article Grape marc and maize cobs in heavy lamb diets

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    experiment and MCo, MC30 and MC60 in the second. For each diet, the voluntary intake and live weight gain in the second experiment, but in diets MC30 and MC60 the digestibility of GE was lower (P MCO result was obtained with the MC30 diet (70 gld higher than MCO). grape marc I maize cob I heavy lamb I

  20. FINITE WAVELET DOMAIN METHOD FOR EFFICIENT MODELING OF LAMB WAVE BASED STRUCTURAL HEALTH MONITORING

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    FINITE WAVELET DOMAIN METHOD FOR EFFICIENT MODELING OF LAMB WAVE BASED STRUCTURAL HEALTH MONITORING element exploits the advantages of wavelets for the spatial discretization of the displacement field : Wavelet-based Finite Element, Transient Response. 1 INTRODUCTION The dynamic transient response and wave

  1. The Lamb Shift of Hydrogen and Low-Energy Tests of QED

    E-Print Network [OSTI]

    Savely G. Karshenboim; D. I. Mendeleev

    1994-11-22T23:59:59.000Z

    Leading logarithmic corrections to the difference of Lamb shifts of s-states $E_L(1s)-8E_L(2s)$ and to the life time of $2p_{1/2}$ state are considered. The result of Sokolov and Yakovlev for the Lamb splitting of $2s_{1/2}$ and $2p_{1/2}$ is re-evaluated and our new value is 1057.8576(21) MHz. Using value of $E_L(1s)-8E_L(2s)=$ -187.237(8) MHz, obtained here, a new value of the Hydrogen and Deuterium ground states using all recent measurements connected with 1s or 2s Lamb shifts. The highest precision value for the Hydrogen ground state is obtained from corrected result of Sokolov and Yakovlev experiment as 8172.934(22) MHz. The Deuterium result is $E_L(1s)-8E_L(2s)=$ -187.229(8) MHz, using it we obtain from the Garching experiment 8183.905(224) MHz. Some related topics are also considered. Taking into account nearest future result the fine structure constant problem are reviewed. Special attention is payed to Muonium hyperfine splitting, which it is done simillar to Lamb shift calculatuion for and to the neutron de Broglie's wave length measurements which also could lead to some connection between the Deuterium mass and the fine structure constant.

  2. Intestinal fatty acid digestion and energy utilization in lambs infused with different plant oils

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Intestinal fatty acid digestion and energy utilization in lambs infused with different plant oils the effects of different plant oils infused into the abomasum on intestinal fatty acid digestion and energy oil (RO) with Cr-EDTA was continuously infused into the abomasum for 17 days of each period. The daily

  3. Effects of prepartum dietary copper on thermogenic capacity of neonatal lambs

    E-Print Network [OSTI]

    Sweatt, Craig Reed

    1996-01-01T23:59:59.000Z

    to a cold (6'C) or warrn (28C) environmental chamber for 48 h. Blood samples collected from ewes at birth and 21, 14, 7 d prior to birth, and from lambs at birth and 48 h of age were analyzed for plasma Cu, ceruloplasmin, triiodothyronine (T3...

  4. Effect of lucerne preservation method in lamb feeding T Zelyazkov T Naidenov A Kirilov

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Effect of lucerne preservation method in lamb feeding T Zelyazkov T Naidenov A Kirilov Forage for winter feeding of animals. Therefore it is very important to choose the most efficient method of lucerne preservation and utilization. The objective of this study was to compare 100 methods of green lucerne

  5. STOCHASTIC WEBS WITH FOURFOLD ROTATION SYMMETRY J.S.W. Lamb

    E-Print Network [OSTI]

    Lamb, Jeroen

    STOCHASTIC WEBS WITH FOURFOLD ROTATION SYMMETRY J.S.W. Lamb Institute for Theoretical Physics saddle connections, a so­called stochastic web, along which chaotic motion proceeds. The latter process it is not zero), the width of the stochastic webs becoming very small for small values of the electric field

  6. Usage Management in Cloud Computing Pramod A. Jamkhedkar, Christopher C. Lamb, Gregory L. Heileman

    E-Print Network [OSTI]

    Heileman, Gregory L.

    Usage Management in Cloud Computing Pramod A. Jamkhedkar, Christopher C. Lamb, Gregory L. Heileman will gain increasing importance as cloud computing becomes more pervasive. Existing service level agreement. This paper introduces the notion and importance of usage management in cloud computing. It provides

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

    E-Print Network [OSTI]

    Nabanja, Sheila P

    2012-01-01T23:59:59.000Z

    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 ...

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

    DOE Patents [OSTI]

    Horton, Richard H. (Schenectady, NY)

    1980-01-01T23:59:59.000Z

    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.

  9. Advanced ultraviolet-resistant silver mirrors for use in solar reflectors

    DOE Patents [OSTI]

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

    2009-11-03T23:59:59.000Z

    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.

  10. Transpolarising Trihedral Corner Reflector Characterisation Using a GB-SAR System

    E-Print Network [OSTI]

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

    2011-01-01T23:59:59.000Z

    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.

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

    SciTech Connect (OSTI)

    Brock, Billy C.; Doerry, Armin Walter

    2009-05-01T23:59:59.000Z

    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.

  12. Transpolarising Trihedral Corner Reflector Characterisation Using a GB-SAR System

    E-Print Network [OSTI]

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

    2011-02-10T23:59:59.000Z

    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.

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

    SciTech Connect (OSTI)

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

    2012-06-01T23:59:59.000Z

    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.

  14. Method of manufacturing large dish reflectors for a solar concentrator apparatus

    DOE Patents [OSTI]

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

    2011-12-27T23:59:59.000Z

    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.

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

    E-Print Network [OSTI]

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

    2014-01-01T23:59:59.000Z

    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...

  16. A descriptive study of rumen digestion in meroxenic lambs according to the nature and complexity of the microflora.

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    animals at the same age and fed the same feed. Food intake and the development of the fermentation pattern influenced the composition of the VFA mixture. The latter was found to consist mainly of acetic acid in lambs

  17. Effects of marinade and spice application on palatability and shelf life of vacuum-packaged lamb loin chops

    E-Print Network [OSTI]

    Strachan, Destiny Nicole

    2001-01-01T23:59:59.000Z

    an inconsistent, unpredictable product with low volume turnover. The increased amount of time lamb spends in the retail case is partially due to its premium price as compared to competing proteins. Jeremiah, Reagan, Smith, and Carpenter (1971) reported... in appearance and quality after 21 days of storage and 3 days of retail display. Reagan, Jeremiah, Smith, and Carpenter (1971), and Smith, Seideman, Savel1, Dill, and Vanderzant (1983) found improvement in retail case shelf life of lamb cuts in vacuum...

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

    SciTech Connect (OSTI)

    Harrison, T.D.

    1980-11-01T23:59:59.000Z

    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.

  19. Collective Lamb shift of superradiant cascade emissions in an atomic ensemble

    E-Print Network [OSTI]

    H. H. Jen

    2015-01-21T23:59:59.000Z

    We calculate the collective Lamb shift of the cascade spontaneous emissions from an atomic ensemble driven by two-color classical fields. The correlated pair of photons (signal and idler) is generated by adiabatically driving the system with large-detuned light fields in four-wave-mixing condition. The signal photon from the upper transition of the diamond-type atomic levels is followed by the idler one which can be superradiant due to light-induced dipole-dipole interactions. We demonstrate that the collective Lamb shift of the idler photon is a cumulative effect of interaction energy, and investigate its dependence on a cylindrical geometry. Manipulating the collective frequency of cascade emissions enables frequency qubits that provide alternative robust elements in quantum network.

  20. Retail market test: An in-depth evaluation of a new product concept for lamb.

    E-Print Network [OSTI]

    Naylor, Robert Kenneth

    1967-01-01T23:59:59.000Z

    Consumer panel test 42 42 43 Design of Consumer Purchase and Acceptance Test ~ 44 Retail store test 45 Test city criteria Sales analysis procedure Promotional campaign Television Newspaper Radio Point-of-Purchase 47 47 47 47 In... Multiple covariance analysis Field Organization for the Market Test 50 50 VI THE RETAIL STORE TEST 52 General Consumer Awareness 52 General Sales Analysis Lamb sales analysis Summary Pork sales analysis Beef sales analysis 53 53 57 58 59...

  1. Proton polarizability effect in the Lamb shift of the hydrogen atom

    E-Print Network [OSTI]

    A. P. Martynenko

    2005-09-22T23:59:59.000Z

    The proton polarizability correction to the Lamb shift of electronic and muonic hydrogen is calculated on the basis of isobar model and experimental data on the structure functions of deep inelastic lepton-nucleon scattering. The contributions of the Born terms, vector-meson exchanges and nucleon resonances are taken into account in the construction of the photoabsorption cross sections for transversely and longitudinally polarized virtual photons sigma_{T,L}.

  2. Dynamical Lamb Effect in a Tunable Superconducting Qubit-Cavity System

    E-Print Network [OSTI]

    Shapiro, D S; Pogosov, W V; Lozovik, Yu E

    2015-01-01T23:59:59.000Z

    We suggest that a transmission line cavity coupled with a superconducting qubit can be used for the experimental investigation of the dynamical Lamb effect, which can be viewed as an atom excitation due to the nonadiabatic modulation of atomic level Lamb shift. The qubit (artificial macroscopic atom) and resonator can be integrated in a tunable way. By varying nonadiabatically the coupling strength, it is possible to parametrically excite the qubit. This approach allows one to get rid of Casimir photons and thus to isolate the mechanism of the qubit excitation due to the dynamical Lamb effect from another mechanism due to the Casimir photons absorbtion. We evaluate a qubit excitation probability within the Jaynes-Cummings model using the perturbation theory and also numerically. We argue that the most efficient method to increase an excitation probability is a periodic driving of a qubit-resonator coupling constant. We also study a statistics of photon states and show that a significant squeezing can be obtai...

  3. Seismic wave propagation in thinly-layered media with steep reflectors

    SciTech Connect (OSTI)

    Deng, H.L.

    1992-05-01T23:59:59.000Z

    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.

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

    SciTech Connect (OSTI)

    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

    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.

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

    SciTech Connect (OSTI)

    Gohar, Y.; Smith, D. L.

    1999-10-07T23:59:59.000Z

    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.

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

    SciTech Connect (OSTI)

    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

    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''.

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

    SciTech Connect (OSTI)

    Gray, M.

    2014-08-01T23:59:59.000Z

    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.

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

    SciTech Connect (OSTI)

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

    2008-05-19T23:59:59.000Z

    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.

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

    E-Print Network [OSTI]

    Atwater, Harry

    INCREASED CELL EFFICIENCY IN InGaAs THIN FILM SOLAR CELLS WITH DIELECTRIC AND METAL BACK REFLECTORS solar cells enable very high photovoltaic efficiencies by virtue of employing different band gap materials in series- connected tandem cells to access the full solar spectrum. Researchers focused

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

    E-Print Network [OSTI]

    Rollins, Andrew M.

    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

  11. Ultracold neutron accumulation in a superfluid-helium converter with magnetic multipole reflector

    E-Print Network [OSTI]

    O. Zimmer; R. Golub

    2015-03-04T23:59:59.000Z

    We analyze accumulation of ultracold neutrons (UCN) in a superfluid-helium converter vessel surrounded by a magnetic multipole reflector. We solved the spin-dependent rate equation, employing formulas valid for adiabatic spin transport of trapped UCN in mechanical equilibrium. Results for saturation UCN densities are obtained in dependence of order and strength of the multipolar field. The addition of magnetic storage to neutron optical potentials can increase the density and energy of the low field seeking UCN produced and serves to mitigate the effects of wall losses on the source performance. It also can provide a highly polarized sample of UCN without need to polarize the neutron beam incident on the converter. This work was performed in preparation of the UCN source project SuperSUN at the ILL.

  12. New Method to Characterize Degradation of First Surface Aluminum Reflectors: Preprint

    SciTech Connect (OSTI)

    Sutter, F.; Heller, P.; Meyen, S.; Pitz-Paal, R.; Kennedy, C.; Fernandez-Garcia, A.; Schmucker, M.

    2010-10-01T23:59:59.000Z

    This paper reports the development of a new optical instrument capable of characterizing the aging process of enhanced first surface aluminum reflectors for concentrating solar power (CSP) application. Samples were exposed outdoors at different sites and in accelerated exposure tests. All samples exposed outdoors showed localized corrosion spots. Degradation originated from points of damage in the protective coating, but propagated underneath the protective coating. The degraded samples were analyzed with a microscope and with a newly designed space-resolved specular reflectometer (SR)2 that is capable of optically detecting and characterizing the corrosion spots. The device measures the specular reflectance at three acceptance angles and the wavelengths with spatial resolution using a digital camera's CMOS sensor. It can be used to measure the corrosion growth rate during outdoor and accelerated exposure tests. These results will allow a correlation between the degraded mirror surface and its specular reflectance.

  13. Nondestructive examination of 51 fuel and reflector elements from Fort St. Vrain Core Segment 1

    SciTech Connect (OSTI)

    Miller, C.M.; Saurwein, J.J.

    1980-12-01T23:59:59.000Z

    Fifty-one fuel and reflector elements irradiated in core segment 1 of the Fort St. Vrain High-Temperature Gas-Cooled Reactor (HTGR) were inspected dimensionally and visually in the Hot Service Facility at Fort St. Vrain in July 1979. Time- and volume-averaged graphite temperatures for the examined fuel elements ranged from approx. 400/sup 0/ to 750/sup 0/C. Fast neutron fluences varied from approx. 0.3 x 10/sup 25/ n/m/sup 2/ to 1.0 x 10/sup 25/ n/m/sup 2/ (E > 29 fJ)/sub HTGR/. Nearly all of the examined elements shrank in both axial and radial dimensions. The measured data were compared with strain and bow predictions obtained from SURVEY/STRESS, a computer code that employs viscoelastic beam theory to calculate stresses and deformations in HTGR fuel elements.

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

    SciTech Connect (OSTI)

    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

    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.

  15. Quantum spacetime fluctuations: Lamb Shift and hyperfine structure of the hydrogen atom

    E-Print Network [OSTI]

    Juan Israel Rivas; Abel Camacho; Ertan Goeklue

    2011-05-31T23:59:59.000Z

    We consider the consequences of the presence of metric fluctuations upon the properties of a hydrogen atom. Particularly, we introduce these metric fluctuations in the corresponding effective Schroedinger equation and deduce the modifications that they entail upon the hyperfine structure related to a hydrogen atom. We will find the change that these effects imply for the ground state energy of the system and obtain a bound for its size comparing our theoretical predictions against the experimental uncertainty reported in the literature. In addition, we analyze the corresponding Lamb shift effect emerging from these fluctuations of spacetime. Once again, we will set a bound to these oscillations resorting to the current experimental outcomes

  16. Effects of various factors on the value and marketability of lamb

    E-Print Network [OSTI]

    Cannell, Robert Charles

    1988-01-01T23:59:59.000Z

    Group B. Carcass values of lambs, calculated by summing retail values and using an average carcass weight of 28. 64 kg, for carcasses fabricated to wholesale cuts with . 64 cm external fat remaining, were $28. 17 and $30. 33 higher per carcass... TRIMMED TO . 25 CM MAXIMUM FAT THICKNESS AS A PERCENT OF CHILLED CARCASS WEIGHT BY YIELD GRADE GROUP. . . . TABLE 15. YIELDS OF WHOLESALE AND RETAIL CUTS TO VARIOUS TRIM LEVELS AS PERCENTS OF CHILLED CARCASS WEIGHT BY YIELD GRADE GROUP. TABLE 16...

  17. Effects of level and source of copper on copper status of ewes and newborn lambs

    E-Print Network [OSTI]

    Eckert, Gregory Evan

    1997-01-01T23:59:59.000Z

    ), and dry matter intake (DMI) of ewes. . 61 Effects of prepartum dietary Cu concentration on ewe liver mineral concentration (mg/kg). 63 10 EfFects of prepartum Cu concentration on lamb plasma ceruloplasmin and plasma Cu at the time of birth...). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49 The effect of Cu intake (mg/d) and Cu source (proteinate or sulfate) on flank wool length (cm) . . 50 6 Effect of high- and low-Cu treatment on ewe plasma ceruloplasmin, . . . . . . . 65 The effects of the high- and low-Cu treatment groups...

  18. Effects of dietary potassium and sodium on magnesium and potassium balance in lambs 

    E-Print Network [OSTI]

    Poe, Julie Hamilton

    1984-01-01T23:59:59.000Z

    of magnesium oxide and trace mineralized salt with either molasses, cottonseed meal, dry sugarcane or steamed bone meal was consumed by lactating beef cows at a significantly (P), 05) higher level than magnesium oxide and trace mineralized salt (1:1) alone...EFFECTS OF DIETARY POTASSIUM AND SODIUM ON MAGNESIUM AND POTASSIUM BALANCE IN LAMBS A Thesis by JULIE HAMILTON POE Submitted to the Graduate College of Texas A&M University in partial fulfillment of the requirements for the degree of MASTER...

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

    SciTech Connect (OSTI)

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

    2009-12-01T23:59:59.000Z

    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.

  20. 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)

    Chou, P

    2011-12-14T23:59:59.000Z

    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.

  1. Lamb Shift in Muonic Hydrogen. II. Analysis of the Discrepancy of Theory and Experiment

    E-Print Network [OSTI]

    U. D. Jentschura

    2010-11-24T23:59:59.000Z

    Currently, both the g factor measurement of the muon as well as the Lamb shift 2S-2P measurement in muonic hydrogen are in disagreement with theory. Here, we investigate possible theoretical explanations, including proton structure effects and small modifications of the vacuum polarization potential. In particular, we investigate a conceivable small modification of the spectral function of vacuum polarization in between the electron and muon energy scales due to a virtual millicharged particle and due to an unstable vector boson originating from a hidden sector of an extended standard model. We find that a virtual millicharged particle which could explain the muonic Lamb shift discrepancy alters theoretical predictions for the muon anomalous magnetic moment by many standard deviations and therefore is in conflict with experiment. Also, we find no parameterizations of an unstable virtual vector boson which could simultaneously explain both "muonic" discrepancies without significantly altering theoretical predictions for electronic hydrogen, where theory and experiment currently are in excellent agreement. A process-dependent correction involving electron screening is evaluated to have the right sign and order-of-magnitude to explain the observed effect in muonic hydrogen. Additional experimental evidence from light muonic atoms and ions is needed in order to reach further clarification.

  2. Laser cooling of two trapped ions: Sideband cooling beyond the Lamb-Dicke limit G. Morigi,1

    E-Print Network [OSTI]

    Blatt, Rainer

    of ultracold atoms, have provided renewed interest and applications for laser cooling techniques 1- onstrated to be a successful technique for cooling single ions to the ground state of a harmonic trap 9Laser cooling of two trapped ions: Sideband cooling beyond the Lamb-Dicke limit G. Morigi,1 J

  3. R. E. Estell, E. L. Fredrickson, D. M. Anderson and M. D. Remmenga mixtures on alfalfa pellet intake by lambs

    E-Print Network [OSTI]

    R. E. Estell, E. L. Fredrickson, D. M. Anderson and M. D. Remmenga mixtures on alfalfa pellet and sesquiterpene mixtures on alfalfa pellet intake by lambs1 R. E. Estell,*2 E. L. Fredrickson,* D. M. Anderson. Four experiments were conducted to determine the effects of terpenes on intake of alfalfa pellets

  4. The effects of zeranol and two dietary levels of calcium and phosphorus on performance, carcass and bone characteristics, and calcium status in feedlot lambs

    E-Print Network [OSTI]

    Hutcheson, John Paul

    1991-01-01T23:59:59.000Z

    of parathyroid hormone (PTH) and Ca. Lambs were assigned to either an implant or non-implant treatment group, and either a high dietary Ca(. 84) and P(. 64) or normal dietary Ca(. 44) and P(. 3 ' ) in a 2 X 2 factorial arrangement of treatments. Lambs were... to determine the effects of zeranol and two dietary levels of Ca and P on performance, carcass and bone charateristics, serum parathyroid hormone and Ca concentrations. Lambs were randomly assigned to either an implant or non-implant treatment group...

  5. Effect of Calcium Supplements on Gains of Lambs Fed Sorghum Fodder or Sorghum Silage as the Roughage Portion of the Fattening Ration.

    E-Print Network [OSTI]

    Jones, J. M. (John McKinley); Stangel, W. L. (Wenzel Louis)

    1938-01-01T23:59:59.000Z

    Number lambs per lot.. ........... 20 20 Av. initial weight at feedlot, Ibs. ... 59.35 59.20 Av final weiqht at feedlot Ibs 89.70 89.08 AV: gain perbead, feedlot.deiihts: : 30.35 29.88 Av. dally gai!~, feedlot we~ght.. .... .34 .33 Av. daily railon..., 1930-31. 90 days *Profit does not take into account loss of one lamb in each of Lots 1 and 3. ?Fed pulverized oyster shell. Item Number lambs per lot.. ........... Av. initial weight at feedlot, Ibs.. .. Av. final weight at feedlot. Ibs. .... Av...

  6. Reflector Technology Development and System Design for Concentrating Solar Power Technologies

    SciTech Connect (OSTI)

    Adam Schaut

    2011-12-30T23:59:59.000Z

    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

  7. 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)

    Harrison, T.D.

    1981-06-01T23:59:59.000Z

    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.

  8. 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)

    Harrison, T.D.

    1980-11-01T23:59:59.000Z

    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.

  9. 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)

    Harrison, T.D.

    1981-05-01T23:59:59.000Z

    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.

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

    SciTech Connect (OSTI)

    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

    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.

  11. Non-astigmatic imaging with matched pairs of spherically bent reflectors

    DOE Patents [OSTI]

    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

    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.

  12. VISAR (Velocity Interferometer System for Any Reflector): Line-imaging interferometer

    SciTech Connect (OSTI)

    Hemsing, W.F.; Mathews, A.R.; Warnes, R.H.; Whittemore, G.R.

    1990-01-01T23:59:59.000Z

    This paper describes a Velocity Interferometer System for Any Reflector (VISAR) technique that extends velocity measurements from single points to a line. Single-frequency argon laser light was focused through a cylindrical lens to illuminate a line on a surface. The initially stationary, flat surface was accelerated unevenly during the experiment. Motion produced a Doppler-shift of light reflected from the surface that was proportional to the velocity at each point. The Doppler-shifted image of the illuminated line was focused from the surface through a push-pull VISAR interferometer where the light was split into four quadrature-coded images. When the surface accelerated, the Doppler-shift caused the interference for each point on each line image to oscillate sinusoidally. Coherent fiber optic bundles transmitted images from the interferometer to an electronic streak camera for sweeping in time and recording on film. Data reduction combined the images to yield a continuous velocity and displacement history for all points on the surface that reflected sufficient light. The technique was demonstrated in an experiment where most of the surface was rapidly driven to a saddle shape by an exploding foil. Computer graphics were used to display the measured velocity history and to aid visualization of the surface motion. 6 refs., 8 figs.

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

    SciTech Connect (OSTI)

    Margaret A. Marshall; John D. Bess

    2012-11-01T23:59:59.000Z

    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].

  14. InAlN/GaN Bragg reflectors grown by plasma-assisted molecular beam epitaxy

    SciTech Connect (OSTI)

    Gacevic, Z.; Fernandez-Garrido, S.; Calleja, E. [ISOM, Universidad Politecnica de Madrid, Avda Complutense s/n, 28040 Madrid (Spain); Hosseini, D.; Peiro, F. [Departament d'Electronica, LENS-MIND-IN2UB, Universitat de Barcelona, Marti i Franques 1, 08028 Barcelona (Spain); Estrade, S. [Departament d'Electronica, LENS-MIND-IN2UB, Universitat de Barcelona, Marti i Franques 1, 08028 Barcelona (Spain); TEM-MAT, SCT-UB, Sole i Sabaris 1, 08028 Barcelona (Spain)

    2010-12-01T23:59:59.000Z

    We report on molecular beam epitaxy growth and characterization of ten-period lattice-matched InAlN/GaN distributed Bragg reflectors (DBRs), with peak reflectivity centered around 400 nm. Thanks to the well tuned ternary alloy composition, crack-free surfaces have been obtained, as confirmed by both optical and transmission electron microscopy (TEM). Their good periodicity and well-defined interfaces have been confirmed by both x-ray diffraction and TEM measurements. Peak reflectivity values as high as 60% with stop bands of 30 nm have been demonstrated. Optical measurements revealed that discrepancy between the obtained (60%) and the theoretically expected ({approx}75%) reflectivity is a consequence of significant residual absorption ({approx}35%). TEM measurements revealed the coexistence of zinc-blende and wurtzite phases, as well as planar defects, mainly in GaN. These defects are suggested as the potential source of the undesired absorption and/or scattering effects that lowered the DBRs' peak reflectivity.

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

    SciTech Connect (OSTI)

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

    2011-03-20T23:59:59.000Z

    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.

  16. Two-port multimode interference reflectors based on aluminium mirrors in a thick SOI platform

    E-Print Network [OSTI]

    Fandiño, Javier S; Muñoz, Pascual

    2015-01-01T23:59:59.000Z

    Multimode interference reflectors (MIRs) were recently introduced as a new type of photonic integrated devices for on-chip, broadband light reflection. In the original proposal, different MIRs were demonstrated based on total internal reflection mirrors made of two deep-etched facets. Although simpler to fabricate, this approach imposes certain limits on the shape of the field pattern at the reflecting facets, which in turn restricts the types of MIRs that can be implemented. In this work, we propose and experimentally demonstrate the use of aluminium-based mirrors for the design of 2-port MIRs with variable reflectivity. These mirrors do not impose any restrictions on the incident field, and thus give more flexibility at the design stage. Different devices with reflectivities between~0~and~0.5 were fabricated in a 3~um thick SOI platform, and characterization of multiple dies was performed to extract statistical data about their performance. Our measurements show that, on average, losses both in the aluminiu...

  17. Ceramic Mugs & Dishes Incandescent Light Bulbs

    E-Print Network [OSTI]

    Yamamoto, Keith

    , MU East Rock Hall/19-B CELL PHONES - EYEGLASSES 654 Minnesota Street Room 208, copy room CVRI Helen. Zion Cancer Research Building N423 Parnassus Campus: eyeglasses "I" level, Optometry Store, MU West

  18. Energy-Saving Incandescents | Department of Energy

    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 onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directed offOCHCO2: Final EnvironmentalCounties,United States NuclearSessionEnergy Efficiency and

  19. Energy-Saving Incandescents | Department of Energy

    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 onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directed offOCHCO2: Final EnvironmentalCounties,United States NuclearSessionEnergy Efficiency andlightbulbs -

  20. Incandescent Lighting Basics | Department of Energy

    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 onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directed off Energy.gov.Energy02.pdf7 OPAM Flash2011-37EnergySubmitRoad |WaterEdition |

  1. The Rayleigh-Lamb wave propagation in dielectric elastomer layers subjected to large deformations

    E-Print Network [OSTI]

    Gal Shmuel; Massimiliano Gei; Gal deBotton

    2011-06-26T23:59:59.000Z

    The propagation of waves in soft dielectric elastomer layers is investigated. To this end incremental motions superimposed on homogeneous finite deformations induced by bias electric fields and pre-stretch are determined. First we examine the case of mechanically traction-free layer, which is an extension of the Rayleigh-Lamb problem in the purely elastic case. Two other loading configurations are accounted for too. Subsequently, numerical examples for the dispersion relations are evaluated for a dielectric solid governed by an augmented neo-Hookean strain energy. It is found that the the phase speeds and frequencies strongly depend on the electric excitation and pre-stretch. These findings lend themselves at the possibility of controlling the propagation velocity as well as filtering particular frequencies with suitable choices of the electric bias field.

  2. Lamb Shift in Muonic Hydrogen. I. Verification and Update of Theoretical Predictions

    E-Print Network [OSTI]

    U. D. Jentschura

    2010-11-24T23:59:59.000Z

    In view of the recently observed discrepancy of theory and experiment for muonic hydrogen [R. Pohl et al., Nature vol. 466, p. 213 (2010)], we reexamine the theory on which the quantum electrodynamic (QED) predictions are based. In particular, we update the theory of the 2P-2S Lamb shift, by calculating the self-energy of the bound muon in the full Coulomb+vacuum polarization (Uehling) potential. We also investigate the relativistic two-body corrections to the vacuum polarization shift, and we analyze the influence of the shape of the nuclear charge distribution on the proton radius determination. The uncertainty associated with the third Zemach moment _2 in the determination of the proton radius from the measurement is estimated. An updated theoretical prediction for the 2S-2P transition is given.

  3. Low-energy effects in brane worlds: Liennard-Wiechert potentials and Hydrogen Lamb shift

    E-Print Network [OSTI]

    Hugo A. Morales-Técotl; Omar Pedraza; Luis O. Pimentel

    2006-11-24T23:59:59.000Z

    Testing extra dimensions at low-energies may lead to interesting effects. In this work a test point charge is taken to move uniformly in the 3-dimensional subspace of a (3+$n$)-brane embedded in a (3+$n$+1)-space with $n$ compact and one warped infinite spatial extra dimensions. We found that the electromagnetic potentials of the point charge match standard Liennard-Wiechert's at large distances but differ from them close to it. These are finite at the position of the charge and produce finite self-energies. We also studied a localized Hydrogen atom and take the deviation from the standard Coulomb potential as a perturbation. This produces a Lamb shift that is compared with known experimental data to set bounds for the parameter of the model. This work provides details and extends results reported in a previous Letter.

  4. Lamb shift and fundamental length of the relativistic Hydrogen atom induced from the non-commutative space-time

    E-Print Network [OSTI]

    Slimane Zaim

    2014-04-08T23:59:59.000Z

    We present an important contribution to the non-commutative approach to the hydrogen atom to deal with lamb shift corrections. This can be done by studying the Klein-Gordon and Dirac equations in a non-commutative space-time up to first-order of the non-commutativity parameter using the Seiberg-Witten maps. We thus find the non-commutative modification of the energy levels and by comparing with the the current experimental results on the Lamb shift of the 2P level to extract a bound on the parameter of non-commutativity, we show that the fundamental length ($\\sqrt{\\Theta}$) is compatible with the value of the electroweak length scale ($l$). Phenomenologically, this effectively confirms the presence of gravity at this level.

  5. The determination of the bioavailability and the site of absorption in lambs fed different sources of magnesium 

    E-Print Network [OSTI]

    Hurley, Leigh Anne

    1988-01-01T23:59:59.000Z

    of the animal influences Ng avail- ability. Grace (1972) found that older cows exhibited a sharper decrease in plasma Ng than did younger cows in the early stages of lactation. Magnesium Supplementation The adequacy of dietary Mg levels is probably...THE DETERMINATION OF THE BIOAVAILABILITY AND THE SITE OF ABSORPTION IN LAMBS FED DIFFERENT SOURCES OF MAGNESIUM A Thesis I, EIGH ANNE HURLEY Submitted to the Of f ice of Graduate Studies Texas AAM UniversitY in partial fulfillment...

  6. CX-011406: Categorical Exclusion Determination

    Broader source: Energy.gov [DOE]

    Notice of Proposed Rulemaking for Energy Conservation Standards for General Service Fluorescent Lamps and Incandescent Reflector Lamps CX(s) Applied: B5.1 Date: 11/21/2013 Location(s): Nationwide Offices(s): Golden Field Office

  7. Lumiram Electric: Proposed Penalty (2010-CE-1014)

    Broader source: Energy.gov [DOE]

    DOE alleged in a Notice of Proposed Civil Penalty that Lumiram Electric Corporation failed to certify a variety of incandescent reflector lamps as compliant with the applicable energy conservation standards.

  8. Lumiram Electric: Order (2010-CE-1014)

    Broader source: Energy.gov [DOE]

    DOE issued an Order and entered into a Compromise Agreement with Lumiram Electric Corporation after finding Lumiram Electric had failed to certify that certain models of incandescent reflector lamps comply with the applicable energy conservation standards.

  9. 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.

  10. Westinghouse Lighting: Order (2010-CE-09/1001)

    Broader source: Energy.gov [DOE]

    DOE ordered Westinghouse Lighting Corporation to pay a $50,000 civil penalty after finding Westinghouse Lighting had failed to certify that certain models of general service flourescent and incandescent reflector lamps comply with the applicable energy conservation standards.

  11. Westinghouse Lighting: Proposed Penalty (2010-CE-09/1001)

    Broader source: Energy.gov [DOE]

    DOE alleged in a Notice of Proposed Civil Penalty that Westinghouse Lighting Corporation failed to certify various flourescent and incandescent reflector lamps as compliant with the applicable energy conservation standards.

  12. Aero-Tech: Proposed Penalty (2010-CE-1012)

    Broader source: Energy.gov [DOE]

    DOE alleged in a Notice of Proposed Civil Penalty that Aero-Tech Light Bulb Co. failed to certify a variety of incandescent reflector lamps as compliant with the applicable energy conservation standards.

  13. Aero-Tech: Order (2010-CE-1012)

    Broader source: Energy.gov [DOE]

    DOE issued an Order and closed this case against Aero-Tech Light Bulb Co., without civil penalty, after DOE found that Aero-Tech manufactured and/or privately labeled incandescent reflector lamps, but did not violate DOE regulations.

  14. 1 5-9.2002 . We report the core and reflector design parameters of reactor PIK needed for neutronic calculations.

    E-Print Network [OSTI]

    Titov, Anatoly

    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

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

    E-Print Network [OSTI]

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

    2013-01-01T23:59:59.000Z

    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...

  16. Designing frequency-dependent relaxation rates and Lamb shift for a giant artificial atom

    E-Print Network [OSTI]

    Anton Frisk Kockum; Per Delsing; Göran Johansson

    2014-06-02T23:59:59.000Z

    In traditional quantum optics, where the interaction between atoms and light at optical frequencies is studied, the atoms can be approximated as point-like when compared to the wavelength of light. So far, this relation has also been true for artificial atoms made out of superconducting circuits or quantum dots, interacting with microwave radiation. However, recent and ongoing experiments using surface acoustic waves show that a single artificial atom can be coupled to a bosonic field at several points wavelengths apart. Here, we theoretically study this type of system. We find that the multiple coupling points give rise to a frequency dependence in the coupling strength between the atom and its environment, and also in the Lamb shift of the atom. The frequency dependence is given by the discrete Fourier transform of the coupling point coordinates and can therefore be designed. We discuss a number of possible applications for this phenomenon, including tunable coupling, single-atom lasing, and other effects that can be achieved by designing the relative coupling strengths of different transitions in a multi-level atom.

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

    SciTech Connect (OSTI)

    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

    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.

  18. Solar passive ceiling system. Final report. [Passive solar heating system with venetian blind reflectors and latent heat storage in ceiling

    SciTech Connect (OSTI)

    Schneider, A.R.

    1980-01-01T23:59:59.000Z

    The construction of a 1200 square foot building, with full basement, built to be used as a branch library in a rural area is described. The primary heating source is a passive solar system consisting of a south facing window system. The system consists of: a set of windows located in the south facing wall only, composed of double glazed units; a set of reflectors mounted in each window which reflects sunlight up to the ceiling (the reflectors are similar to venetian blinds); a storage area in the ceiling which absorbs the heat from the reflected sunlight and stores it in foil salt pouches laid in the ceiling; and an automated curtain which automatically covers and uncovers the south facing window system. The system is totally passive and uses no blowers, pumps or other active types of heat distribution equipment. The building contains a basement which is normally not heated, and the north facing wall is bermed four feet high around the north side.

  19. Focusing electrode and coaxial reflector used for reducing the guiding magnetic field of the Ku-band foilless transit-time oscillator

    SciTech Connect (OSTI)

    Ling, Junpu; Zhang, Jiande; He, Juntao, E-mail: hejuntao12@163.com; Wang, Lei; Deng, Bingfang [College of Optoelectronic Science and Engineering, National University of Defense Technology, Changsha 410073 (China)

    2014-08-15T23:59:59.000Z

    Based on the theoretical analysis of the intense relativistic electron beam propagation in the coaxial drift-tube, a focusing electrode and a coaxial reflector is proposed to lessen the demand of the coaxial Ku-band foilless transit-time oscillator (TTO) for the guiding magnetic field. Moreover, a Ku-band TTO with the focusing electrode and the coaxial reflector is designed and studied by particle in cell simulation. When the diode voltage is 390 kV, the beam current 7.8 kA, and the guiding magnetic field is only 0.3 T, the device can output 820 MW microwave pulse at 14.25 GHz by means of the simulation. However, for the device without them, the output power is only 320 MW. The primary experiments are also carried out. When the guiding magnetic field is 0.3 T, the output power of the device with the focusing electrode and the coaxial reflector is double that of the one without them. The simulation and experimental results prove that the focusing electrode and the coaxial reflector are effective on reducing the guiding magnetic field of the device.

  20. GaN-based two-dimensional surface-emitting photonic crystal lasers with AlN/GaN distributed Bragg reflector

    E-Print Network [OSTI]

    Fan, Shanhui

    GaN-based two-dimensional surface-emitting photonic crystal lasers with AlN/GaN distributed Bragg 14 December 2007; published online 11 January 2008 GaN-based two-dimensional 2D surface-emitting photonic crystal PC lasers with AlN/GaN distributed Bragg reflectors are fabricated and demonstrated

  1. 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)

    Harrison, T.D.

    1981-05-01T23:59:59.000Z

    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.

  2. Terr. Atmos. Ocean. Sci., Vol. 17, No. 4, 739-756, December 2006 Velocity Structure in Marine Sediments with Gas Hydrate Reflectors

    E-Print Network [OSTI]

    Lin, Andrew Tien-Shun

    Sediments with Gas Hydrate Reflectors in Offshore SW Taiwan, from OBS Data Tomography Win-Bin Cheng 1 be considered a result of local shallowing of the base of the gas hydrate stability zone, caused by ascending structure was ob- served and could be associated with the phenomenon of hydrate/gas phase boundary

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

    SciTech Connect (OSTI)

    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

    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.}

  4. One-wave optical time-reversal mirror by actively coupling arbitrary light fields into a single-mode reflector

    E-Print Network [OSTI]

    Lee, KyeoReh; Park, Jung-Hoon; Park, Ji-Ho; Park, YongKeun

    2015-01-01T23:59:59.000Z

    Rewinding the arrow of time via phase conjugation is an intriguing phenomena made possible by the wave property of light. To exploit this phenomenon, many diverse research fields have pursed the realization of an ideal phase conjugation mirror, but the ideal phase conjugation mirror - an optical system that requires a single-input and a single-output beam, like natural conventional mirrors - has never been demonstrated. Here, we demonstrate the realization of a one-wave optical time-reversal mirror using a spatial light modulator and a single-mode reflector. Our method is simple, alignment free, and fast while allowing unlimited power throughput in the time reversed wave, which have not been simultaneously demonstrated before. Using our method, we demonstrate high throughput time-reversal full-field light delivery through highly scattering biological tissue and multimode fibers, even for quantum dot fluorescence.

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

    SciTech Connect (OSTI)

    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

    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.

  6. Optimal design of one-dimensional photonic crystal back reflectors for thin-film silicon solar cells

    SciTech Connect (OSTI)

    Chen, Peizhuan; Hou, Guofu, E-mail: gfhou@nankai.edu.cn; Zhang, Jianjun, E-mail: jjzhang@nankai.edu.cn; Zhang, Xiaodan; Zhao, Ying [Institute of Photoelectronics and Tianjin Key Laboratory of Photoelectronic Thin-film Devices and Technique, Nankai University, Tianjin 300071 (China)

    2014-08-14T23:59:59.000Z

    For thin-film silicon solar cells (TFSC), a one-dimensional photonic crystal (1D PC) is a good back reflector (BR) because it increases the total internal reflection at the back surface. We used the plane-wave expansion method and the finite difference time domain (FDTD) algorithm to simulate and analyze the photonic bandgap (PBG), the reflection and the absorption properties of a 1D PC and to further explore the optimal 1D PC design for use in hydrogenated amorphous silicon (a-Si:H) solar cells. With identified refractive index contrast and period thickness, we found that the PBG and the reflection of a 1D PC are strongly influenced by the contrast in bilayer thickness. Additionally, light coupled to the top three periods of the 1D PC and was absorbed if one of the bilayers was absorptive. By decreasing the thickness contrast of the absorptive layer relative to the non-absorptive layer, an average reflectivity of 96.7% was achieved for a 1D PC alternatively stacked with a-Si:H and SiO{sub 2} in five periods. This reflectivity was superior to a distributed Bragg reflector (DBR) structure with 93.5% and an Ag film with 93.4%. n-i-p a-Si:H solar cells with an optimal 1D PC-based BR offer a higher short-circuit current density than those with a DBR-based BR or an AZO/Ag-based BR. These results provide new design rules for photonic structures in TFSC.

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

    SciTech Connect (OSTI)

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

    2010-01-01T23:59:59.000Z

    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.

  8. SLAMBOT: Structural Health Monitoring Robot using Lamb Waves Wenyi Wang1 Thomas C. Henderson1 Anshul Joshi1 and Edward Grant2

    E-Print Network [OSTI]

    Henderson, Thomas C.

    SLAMBOT: Structural Health Monitoring Robot using Lamb Waves Wenyi Wang1 Thomas C. Henderson1 and a computational sensor network approach to perform structural health monitoring of structures. The robot through the material is used to define two structural health monitoring methods: (1) a time reversal

  9. 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)

    Harrison, T.D.

    1981-04-01T23:59:59.000Z

    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.

  10. When the expansion of finite-size corrections to hydrogen Lamb shift in moments of charge distribution breaks down

    E-Print Network [OSTI]

    Hagelstein, Franziska

    2015-01-01T23:59:59.000Z

    We point out a limitation of the standard way of accounting the finite-size effects, i.e., when the leading $[(Z\\alpha)^4]$ and subleading $[(Z\\alpha)^5]$ contributions to the Lamb shift are given by the mean-square radius and the third Zemach moment of the charge distribution. This limitation may have profound consequences for the interpretation of the "proton size puzzle". We find, for instance, that the de R\\'ujula toy model of the proton form factor does not resolve the puzzle as claimed, despite the large value of the third Zemach moment. Given the formula which does not rely on the radii expansion, we show how tiny (less than a hundredth of percent) changes in the proton electric form factor at a MeV scale would be able to explain the puzzle.

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

    DOE Patents [OSTI]

    Weiss, Jonathan D. (Albuquerque, NM)

    1995-01-01T23:59:59.000Z

    A shock velocity and damage location sensor providing a means of measuring shock speed and damage location. 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.

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

    DOE Patents [OSTI]

    Weiss, J.D.

    1995-08-29T23:59:59.000Z

    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.

  13. Polarity dependence of the electrical characteristics of Ag reflectors for high-power GaN-based light emitting diodes

    SciTech Connect (OSTI)

    Park, Jae-Seong; Seong, Tae-Yeon, E-mail: tyseong@korea.ac.kr [Department of Materials Science and Engineering, Korea University, Seoul 136-713 (Korea, Republic of); Han, Jaecheon [Department of LED Business, Chip Development Group, LG Innotek, Paju 413-901 (Korea, Republic of); Ha, Jun-Seok [School of Applied Chemical Engineering, Chonnam National University, Gwangju 500-757 (Korea, Republic of)

    2014-04-28T23:59:59.000Z

    We report on the polarity dependence of the electrical properties of Ag reflectors for high-power GaN-based light-emitting diodes. The (0001) c-plane samples become ohmic after annealing in air. However, the (11–22) semi-polar samples are non-ohmic after annealing, although the 300?°C-annealed sample shows the lowest contact resistivity. The X-ray photoemission spectroscopy (XPS) results show that the Ga 2p core level for the c-plane samples experiences larger shift toward the valence band than that for the semi-polar samples. The XPS depth profile results show that unlike the c-plane samples, the semi-polar samples contain some amounts of oxygen at the Ag/GaN interface regions. The outdiffusion of Ga atoms is far more significant in the c-plane samples than in the semi-polar samples, whereas the outdiffusion of N atoms is relatively less significant in the c-plane samples. On the basis of the electrical and XPS results, the polarity dependence of the electrical properties is described and discussed.

  14. Combining red- and blue-detuned optical potentials to form a Lamb-Dicke trap for a single neutral atom

    E-Print Network [OSTI]

    Xiaodong He; Peng Xu; Jin Wang; Mingsheng Zhan

    2012-02-03T23:59:59.000Z

    We propose and demonstrate a scheme for strongly radially confining a single neutral atom in a bichromatic far-off resonance optical dipole trap(BFORT) . BFORT is composed of a blue-detuned Laguerre-Gaussian $LG^1_ 0$ beam and a red-detuned Gaussian beam. The trapping radial dimension of a single atom trapped in the Gaussian FORT can be greatly compressed by imposing a blue-detuned Laguerre-Gaussian $LG^1_ 0$ beam with moderate potential depth. By modulating the potential depth of the Gaussian FORT we observed that the resonant and parametric excitation of the oscillatory motion of a single atom in this BFORT and obtained the oscillation frequency that well fits prediction from the theoretical model. The frequency measurement shows that effective trapping dimension can be greatly sharper than that diffraction limited of microscopic objective we used. Then we show that the excess scattering rate due to imposing blue detuned light can be eliminated when single atoms is close to ground-state theoretically. So BFORT suits the purpose of acting as a Lamb-Dicke trap for further cooling a single neutral atom to motion ground-state and finding application in quantum information progressing.

  15. Seasonal Patterns of Melatonin, Cortisol, and Progesterone Secretion in Female Lambs Raised Beneath a 500-kV Transmission Line.

    SciTech Connect (OSTI)

    Lee, Jack M.

    1992-06-01T23:59:59.000Z

    Although several kinds of biological effects of electric and magnetic fields have been reported from laboratory studies, few have been independently replicated. When this study was being planned, the suppression of nighttime melatonin in rodents was thought to represent one of the strongest known effects of these fields. The effect had been replicated by a single laboratory for 60-Hz electric fields, and by multiple laboratories for d-c magnetic fields. The primary objective of this study was to determine whether the effect of electric and magnetic fields on melatonin would also occur in sheep exposed to a high voltage transmission line. The specific hypothesis tested by this experiment was as follows: The electrical environment produced by a 60-Hz, 500-kV transmission line causes a depression in nocturnal melatonin in chronically exposed female lambs. This may mimic effects of pinealectomy or constant long-day photoperiods, thus delaying the onset of reproductive cycles. Results of the study do not provide evidence to support the hypothesis. Melatonin concentrations in the sheep exposed to the transmission line showed the normal pattern of low daytime and high nighttime serum levels. As compared to the control group, there were no statistically significant group differences in the mean amplitude, phase, or duration of the nighttime melatonin elevation.

  16. Silvered polymer reflectors

    SciTech Connect (OSTI)

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

    1985-03-01T23:59:59.000Z

    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)

  17. Extreme ultraviolet reflector

    DOE Patents [OSTI]

    Newnam, Brian E. (Los Alamos, NM)

    1990-01-01T23:59:59.000Z

    A multi-faceted mirror forms a retroreflector for a resonator loop in a free electron laser (FEL) operating in the XUV (.lambda.=10-100 nm). The number of facets is determined by the angle-of-incidence needed to obtain total external reflectance (TER) from the facet surface and the angle through which the FEL beam is to be turned. Angles-of-incidence greater than the angle for TER may be used to increase the area of the beam incident on the surface and reduce energy absorption density. Suitable surface films having TER in the 10-100 nm range may be formed from a variety of materials, including Al, single-crystal Si, Ag, and Rh. One of the facets is formed as an off-axis conic section to collimate the output beam with minimum astigmatism.

  18. Lamb’s problem at its simplest

    E-Print Network [OSTI]

    Kausel, Eduardo A.

    This article revisits the classical problem of horizontal and vertical point loads suddenly applied onto the surface of a homogeneous, elastic half-space, and provides a complete set of exact, explicit formulae which are ...

  19. Underwater Lighting by Submerged Lasers and Incandescent Sources

    E-Print Network [OSTI]

    Duntley, Seibert Q

    1971-01-01T23:59:59.000Z

    books. For eX3.I11ple, equation (5.49.1) on page 107 of Glastone and Edlund's, "Elements of Nuclear Reactor

  20. DOE Requires Manufacturer and Labeler to Cease Sale of Incandescent...

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

    Addthis Related Articles DOE Requires Westinghouse to Cease Sales of Two Light Bulb Models and Allows Sale of Another Westinghouse and Fuzhou Permitted to Restart...

  1. How Energy-Efficient Light Bulbs Compare with Traditional Incandescents |

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742 33Frequently20,000 RussianBy: Thomas P. D'Agostino,GlenLearningDepartmentDistributed

  2. Replacing Incandescent Lightbulbs and Ballasts | Department of Energy

    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 onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directed offOCHCO Overview OCHCO Overview OCHCODepartmentEnergyCouncilAffairs, toReno Roundtable

  3. DOE Requires Manufacturer and Labeler to Cease Sale of Incandescent

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels DataDepartment of Energy Your Density Isn't Your Destiny: Theof"WaveInteractions and PolicyCybersecurity Threats

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

    SciTech Connect (OSTI)

    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

    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.

  5. An efficient light trapping scheme based on textured conductive photonic crystal back reflector for performance improvement of amorphous silicon solar cells

    SciTech Connect (OSTI)

    Chen, Peizhuan; Hou, Guofu, E-mail: gfhou@nankai.edu.cn; Huang, Qian; Zhao, Jing; Zhang, Jianjun, E-mail: jjzhang@nankai.edu.cn; Ni, Jian; Zhang, Xiaodan; Zhao, Ying [Tianjin Key Laboratory of Photoelectronic Thin-Film Devices and Technique, Institute of Photoelectronics, Nankai University, Tianjin 300071 (China); Fan, QiHua [Department of Electrical Engineering and Computer Science, South Dakota State University, Brookings, South Dakota 57007 (United States)

    2014-08-18T23:59:59.000Z

    An efficient light trapping scheme named as textured conductive photonic crystal (TCPC) has been proposed and then applied as a back-reflector (BR) in n-i-p hydrogenated amorphous silicon (a-Si:H) solar cell. This TCPC BR combined a flat one-dimensional photonic crystal and a randomly textured surface of chemically etched ZnO:Al. Total efficiency enhancement was obtained thanks to the sufficient conductivity, high reflectivity and strong light scattering of the TCPC BR. Unwanted intrinsic losses of surface plasmon modes are avoided. An initial efficiency of 9.66% for a-Si:H solar cell was obtained with short-circuit current density of 14.74?mA/cm{sup 2}, fill factor of 70.3%, and open-circuit voltage of 0.932?V.

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

    SciTech Connect (OSTI)

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

    2011-03-20T23:59:59.000Z

    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.

  7. Table Set-up with equipment Target Audience: Parents of elementary school students (grades 3-6), Middle and High School Students

    E-Print Network [OSTI]

    Linhardt, Robert J.

    on significantly different technology (e.g. incandescent, CFL, LED) as an example of information on light bulbs simple reflector lamps (clamp on) for display of bulbs (desk lamp is good because of the length of the support). Table of lamp specifications for a variety of standard bulbs available from national chains (e

  8. 851 S.W. Sixth Avenue, Suite 1100 Steve Crow 503-222-5161 Portland, Oregon 97204-1348 Executive Director 800-452-5161

    E-Print Network [OSTI]

    savings come primarily from commercial and industrial equipment and residential water heaters. · Savings Ballasts Water Heaters Small Electric Motors Central Air Conditioners and Heat Pumps Clothes Dryers Clothes Incandescent Reflector Lamps Direct Heating Equipment Pool Heaters Clothes Washers, Commercial Dishwashers

  9. Deployable Synthetic Aperture Radar Reflector

    E-Print Network [OSTI]

    Pellegrino, Sergio

    ) 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

  10. Willis Lamb, Jr., the Hydrogen Atom, and the Lamb Shift

    Office of Scientific and Technical Information (OSTI)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742EnergyOnItem Not Found Item Not Found The item youTheWSRC-TR-97-0100WHITE LED WITH

  11. Lamb Energy | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are beingZealand Jump to: navigation, searchOf Kilauea Volcano,Lakefront Tow Tank Jump to:Wind Farm Jump to:I

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

    SciTech Connect (OSTI)

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

    1998-12-23T23:59:59.000Z

    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.

  13. 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)

    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

    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.

  14. Comprehensive Pyrometry of Incandescent Multiwalled Carbon Nanotubes and Graphene in the Visible and Near Infrared

    E-Print Network [OSTI]

    Singer, Scott

    2012-01-01T23:59:59.000Z

    of 1990 (ITS-90). ,” Metrologia, vol. 27, p. 3, Mar. 1990. [Wavelength Pyrometry,” Metrologia, vol. 17, p. 103, 1981. [

  15. Aerosol Mass Spectrometry via Laser-Induced Incandescence Particle Vaporization Final Report

    SciTech Connect (OSTI)

    Timothy B. Onasch

    2011-10-20T23:59:59.000Z

    We have successfully developed and commercialized a soot particle aerosol mass spectrometer (SP-AMS) instrument to measure mass, size, and chemical information of soot particles in ambient environments. The SP-AMS instrument has been calibrated and extensively tested in the laboratory and during initial field studies. The first instrument paper describing the SP-AMS has been submitted for publication in a peer reviewed journal and there are several related papers covering initial field studies and laboratory studies that are in preparation. We have currently sold 5 SP-AMS instruments (either as complete systems or as SP modules to existing AMS instrument operators).

  16. A calibration-independent laser-induced incandescence technique for soot measurement

    E-Print Network [OSTI]

    Gülder, �mer L.

    , and viral in- fections. The soot emitted from various combustion devices, such as engines, power generation range of applications, such as steady flames, flickering flames, and Diesel engine exhausts. We present. Introduction Recent studies have drawn attention to the role of combustion-generated particulate matter

  17. Comprehensive Pyrometry of Incandescent Multiwalled Carbon Nanotubes and Graphene in the Visible and Near Infrared

    E-Print Network [OSTI]

    Singer, Scott

    2012-01-01T23:59:59.000Z

    E. Pop, “Infrared Microscopy of Joule Heating in Graphenenear infrared is attainable through gating and heating of

  18. 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)

    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

    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.

  19. Ideal light concentrators with reflector gaps

    SciTech Connect (OSTI)

    Winston, Roland (Chicago, IL)

    1980-01-01T23:59:59.000Z

    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.

  20. Laser having a nonlinear phase conjugating reflector

    SciTech Connect (OSTI)

    Wang, V.; Yariv, A.

    1980-11-11T23:59:59.000Z

    A laser is described which self-corrects for distortions introduced into the laser beam wavefronts by aberrations and time-varying phenomena internal to the laser. The improved laser includes a partially transmissive first reflecting element, an aperture stop, a lasing medium and a nonlinear phase conjugate reflecting device as the second reflecting element. During laser operation, aberrated wavefronts impinging upon the second reflecting element are reflected as the phase conjugate waveform thereof. The aperture stop restricts laser operation to the fundamental mode which allows only corrected, unaberrated waves to pass through the aperture stop and to subsequently exit the laser. Four embodiments are described utilizing stimulated brillouin scattering (Sbs), four-wave mixing, three-wave mixing and photon echo devices as the second reflecting element.

  1. Ideal light concentrators with reflector gaps

    SciTech Connect (OSTI)

    Winston, R.

    1980-10-28T23:59:59.000Z

    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.

  2. Correlated-Intensity velocimeter for Arbitrary Reflector

    DOE Patents [OSTI]

    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

    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

  3. Optical Reflectance Measurements for Commonly Used Reflectors

    E-Print Network [OSTI]

    Janecek, Petr Martin

    2009-01-01T23:59:59.000Z

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

  4. Solar module having reflector between cells

    DOE Patents [OSTI]

    Kardauskas, Michael J. (Billerica, MA)

    1999-01-01T23:59:59.000Z

    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.

  5. The Sandia Wave Reflector - 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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:Energy: Grid Integration Redefining What'sis Taking Over OurThe Iron Spin Transition in the Earth's LowerFacilityTheSandia Hand Features

  6. Demonstration of Recessed Downlight Technologies: Power and Illumination Assessment

    SciTech Connect (OSTI)

    Parker, Steven A.; Beeson, Tracy A.

    2009-11-20T23:59:59.000Z

    Solid state lighting (SSL), specifically light-emitting diodes (LED), has been advancing at a rapid pace, and there are presently multiple products available that serve as direct replacements for traditional luminaires. In this demonstration, conventional recessed lights in a conference room were used to compare conventional incandescent A-lamps, incandescent reflector R-lamps, dimming compact fluorescent lamps (CFL), to an LED replacement product. The primary focus during the study was on light delivered to the task plane as provided by the power required by the lighting system. Vertical illuminance, dimming range, and color shift are also important indicators of lighting quality and are discussed in the report. The results clearly showed that LEDs, with dimming-capable drivers, are much more efficient than incandescent and CFLs. Further, LEDs provide much smoother and consistent dimming than dimmable CFLs. On the potential negative side, it is important that the dimming switch be identified as compatible with the LED driver. A wide variety of dimmer switches are capable of dimming LEDs down to 15% of full light output, while select others can be capable of dimming LEDs down to 5%. In addition, LEDs can be intensive light sources, which can result in uncomfortable glare in some applications and to some occupants. Higher ceiling (9-foot or greater) or non-specular reflectors can act to alleviate the potential for glare.

  7. U.S. Energy Information Administration (EIA) - Sector

    Annual Energy Outlook 2013 [U.S. Energy Information Administration (EIA)]

    incandescent bulbs. High-performance incandescent, compact fluorescent, and light-emitting diode (LED) lamps continue to replace low-efficacy incandescent lamps. In 2035,...

  8. Grain Sorghum Vs. Corn for Fattening Lambs.

    E-Print Network [OSTI]

    Jones, J. M. (John McKinley); Brewer, Roy A.; Dickson, R. E.

    1920-01-01T23:59:59.000Z

    , Ezecutive Assisfant Apiculturist CHARLES SOSOLIK. Technical Assistant C. 's.' RGDE: B. 's.','A ssistant EntornoIog~ VETERINARY SCIENCE *M FRANCIS D. V M Chief H. SCHMIDT, D. V. s., herinarian D. H. BENNETT. V. M. D., Veterinarian CHEMISTRY G S FRAPS...

  9. Analysis of optimum Lamb wave tuning

    E-Print Network [OSTI]

    Shi, Yijun, 1970-

    2002-01-01T23:59:59.000Z

    Guided waves are of enormous interest in the nondestructive evaluation of thin-walled structures and layered media. Due to their dispersive and multi-modal nature, it is desirable to tune the waves by discriminating one ...

  10. Quality of vacuum packaged lamb retail cuts

    E-Print Network [OSTI]

    Wanstedt, Kristen Gae

    1982-01-01T23:59:59.000Z

    ) provision of an ideal environment for the ag1ng of meat. Materials wh1ch prevent the rapid exchange of gases result in longer storage 11fe of meat than is obta1ned by packaging with more permeable materials (Kraft and Ayres, 1952). Jaye et al. (1962... storage for up to 35 days. Hanna et al. (1976) reported that these coryneform bacteria were species of ~Cba t i d a o hath i ~th rmos ha t m. B. ~th rmos hactu has been reported to be a major constituent of the bacterial flora of vacuum packaged...

  11. How to upgrade your incandescent light bulbs Many people are choosing replacements for their standard incandescent light bulbs to save money or energy, because they've heard of new LED

    E-Print Network [OSTI]

    Bystroff, Chris

    or building a new home, work wi efficient light fixture, · use occupancy or vacancy sensors, or · if you are renovating your home

  12. 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)

    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

    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.}

  13. Energy Savings and NOx Emissions Reduction Potential from the 2012 Federal Legislation to Phase Out Incandescent Lamps in Texas

    E-Print Network [OSTI]

    Liu, Zi; Baltazar, Juan Carlos; Haberl, Jeff; Soman, Rohit

    296042501.6 100% Page 9 Table 5: Annual NOX Emissions A r ea Co u n t y A meri ca n E lec t r ic P o w er - W es t ( E RCO T ) /P CA NO x Redu ctio n s ( lbs) A u stin E n er g y /P CA NO x Redu ctio n s ( lbs) Brow n sv ille P u b... ort h E a s t T e x a s A re a Page 10 Table 6: Ozone Production Period NOx Emissions A r ea Co u n t y A meri ca n E lec t r ic P o w er - W es t ( E RCO T ) /P CA NO x Redu ctio n s ( lbs) A u stin E n er g y /P CA NO x Redu...

  14. Optical and Mechanical Effects of Elastomeric Distributed Bragg Reflectors

    E-Print Network [OSTI]

    Kamita, Gen

    2014-05-27T23:59:59.000Z

    .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...

  15. MODELLING OF CAVITY RECEIVER HEAT TRANSFER COMPACT LINEAR FRESNEL REFLECTOR

    E-Print Network [OSTI]

    . This approach allows an affordable entry into renewable energy for existing coal-power producers, and allows them to meet the mandatory renewable energy targets set by the government of New South Wales . (Hu et) linear absorbers, achieving higher ground area efficiency. · Receiver is an inverted, trapezoidal, linear

  16. Convection venting lensed reflector-type compact fluorescent lamp system

    DOE Patents [OSTI]

    Pelton, B.A.; Siminovitch, M.

    1997-07-29T23:59:59.000Z

    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.

  17. Convection venting lensed reflector-type compact fluorescent lamp system

    DOE Patents [OSTI]

    Pelton, Bruce A. (825 Manor Rd., El Sobrante, CA 94803); Siminovitch, Michael (829 Manor Rd., El Sobrante, CA 94803)

    1997-01-01T23:59:59.000Z

    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.

  18. 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.

  19. Development of Advanced Polymeric Reflector for CSP Applications - Final Report

    SciTech Connect (OSTI)

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

    2013-03-28T23:59:59.000Z

    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.

  20. Enhancing cholesteric liquid crystal laser performance using a cholesteric reflector

    E-Print Network [OSTI]

    Wu, Shin-Tson

    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

  1. The Effect of Reflectors and Delamping Upon Light Levels

    E-Print Network [OSTI]

    Pashkevich, P. A.

    1989-01-01T23:59:59.000Z

    raging from 52 percent between rows to 80 percent under rows for an average of nearly 70 percent. Light levels in rooms with fixtures on an even grid spacing ranged from 73 percent between fixtures to 86 percent under fixtures for room averages of 75...

  2. 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.

  3. Project Profile: Advanced Manufacture of Reflectors | 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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742EnergyOn April 23, 2014, an OHASeptember 2010 | Department ofPlantLong IslandDepartment

  4. Project Profile: Advanced Polymeric Reflector for CSP Applications |

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742EnergyOn April 23, 2014, an OHASeptember 2010 | Department ofPlantLong IslandDepartmentDepartment

  5. Project Profile: High Performance Reflector Panels for CSP Assemblies |

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742EnergyOn April 23, 2014, an OHASeptember 2010 | DepartmentEnergy MITis PVSalts forDepartment

  6. ,,,"Incandescent","Standard Fluorescent","Compact Fluorescent","High-Intensity Discharge","Halogen"

    U.S. Energy Information Administration (EIA) 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 onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere IRaghurajiConventional Gasoline Sales toReformulated, Average0.9 Relative Standard Errors for Table98.

  7. ,,,"Incandescent","Standard Fluorescent","Compact Fluorescent","High-Intensity Discharge","Halogen"

    U.S. Energy Information Administration (EIA) 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 onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere IRaghurajiConventional Gasoline Sales toReformulated, Average0.9 Relative Standard Errors for Table98.B39.

  8. Histological, physical, and chemical factors of various lamb muscles

    E-Print Network [OSTI]

    Tschirhart, Tara Elizabeth

    2004-09-30T23:59:59.000Z

    (WHC), pH, total collagen content, sarcomere length, and fat and moisture content. Muscles from the left sides of the carcasses were aged for seven days and used to determine percent cook loss, and Warner-Bratzler shear force values. The M. teres major...

  9. EFFECT OF ABOMASAL ADDED OILS ON GLUCOSE TOLERANCE IN LAMBS

    E-Print Network [OSTI]

    Boyer, Edmond

    ) glycemia, pyruvic and lactic plasma acids were assayed after an 18 hr. fast. To test glucose tolerance, 750 increased significantly following ,idministrating of abomasal supplemented oils. No changes in pyruvic and lactic plasma acids were recorded. The highest value of glycemia was found with diet D2, probably related

  10. The Texas Drylot Lamb Feeding Industry: Operational Characteristics and Costs.

    E-Print Network [OSTI]

    Dietrich, R.A.; Conner, J.R.; Wenzel, G.C.

    1990-01-01T23:59:59.000Z

    head capacity over capacity Total Percent Single proprietor 60.0 NR NR 27.3 Partnership 20.0 66.7 NR 27.3 Cooperative NR NR NR NR Corporation 20.0 33.3 100.0 45.4 Total 100.0 100.0 100.0 100.0 NR=None reported by respondents interviewed. 6 1....0 81.8 Rancher NR NR NR NR Meat packer NR NR NR NR Feed company 20.0 NR NR 9.1 Retailer NR NR NR NR Farming 20.0 NR NR 9.1 Total 100.0 100.0 100.0 100.0 NR=None reported by respondents interviewed. Table 6. Primary source of financing...

  11. Mechanisms of Vitamin D3 on tenderness of lamb

    E-Print Network [OSTI]

    Boleman, Christopher Thomas

    2000-01-01T23:59:59.000Z

    . Currently, there are several research institutions studying the effects of varying levels of VITD on beef cattle. Swanek et al. (1999) reported a study where feedlot cattle were supplemented either 0 or 5 mil IU of VITD per day for 5 d immediately before... slaughter. The longissimus dorsi muscle from cattle fed 5 mil IU of VITD displayed lower (P & 0. 05) Warner ? Bratzler shear force (WBS) values than the longissimus dorsi muscle from the control cattle. Currently, there is no known research investigating...

  12. Global Supply Chain Analysis of U.S. Lamb Promotion

    E-Print Network [OSTI]

    Ghosh, Somali

    2014-04-13T23:59:59.000Z

    confluence of many factors, amongst which is the discontinuation of the U.S. Wool Incentive payment program. With the discontinuation of the program in 1996/97, an unsuccessful effort was made to pass a mandatory checkoff program through a producer referendum...

  13. Non-contact feature detection using ultrasonic Lamb waves

    DOE Patents [OSTI]

    Sinha, Dipen N. (Los Alamos, NM)

    2011-06-28T23:59:59.000Z

    Apparatus and method for non-contact ultrasonic detection of features on or within the walls of hollow pipes are described. An air-coupled, high-power ultrasonic transducer for generating guided waves in the pipe wall, and a high-sensitivity, air-coupled transducer for detecting these waves, are disposed at a distance apart and at chosen angle with respect to the surface of the pipe, either inside of or outside of the pipe. Measurements may be made in reflection or transmission modes depending on the relative position of the transducers and the pipe. Data are taken by sweeping the frequency of the incident ultrasonic waves, using a tracking narrow-band filter to reduce detected noise, and transforming the frequency domain data into the time domain using fast Fourier transformation, if required.

  14. Lamb County, Texas: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere I Geothermal Pwer Plant Jump to: navigation,working-groupsIllinois:LakeIowa:

  15. Slaughter and carcass characteristics of finewool vs crossbred lambs

    E-Print Network [OSTI]

    Bland, Bobby J

    1960-01-01T23:59:59.000Z

    OL Nod 2 lou. ar e h &'a Wf a XS 8431 fo ~ P+ ko ~ 8 0 o 7 of aN boos fo lac r ~ of leg fo oh b . 49 ~ of La& ( l~zz r 9 B~gh ok ~ /th ~ RS - ' ? tm WMt8x shou u& 6 ruffle af 'S XafL~. Pi b @erg mart ee Cmi' l. '. f a ause 'f0 Rl... w Since very 1. ittle carcass worh has been reported on sheep, this study was initiated to give s basis and direction for further worh in this area. Specifically there were three avagor points for which answers were desired. These ware...

  16. Microsoft PowerPoint - Lamb_et_al_Norfolk_Poster

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOEThe Bonneville PowerCherries 82981-1cnHighand RetrievalsFinalModule8.ppt MicrosoftDOE'sR.G. Van de WaterPhaseAMF

  17. EA-1664: Final Environmental Assessment

    Broader source: Energy.gov [DOE]

    10 CFR Part 430 Energy Conservation Standards: Energy Conservation Standards for Fluorescent and Incandescent Lamps

  18. PROJECTS IMPLEMENTED The City focused on improving the efficiency of

    E-Print Network [OSTI]

    · Replacing incandescent exit signs with new light emitting diode signs · Replacing the existing chiller

  19. Initial Score: # of workers

    E-Print Network [OSTI]

    Yamamoto, Keith

    My lab has replaced incandescent lamps with Compact Fluorescent Lamps (CFLs) or Light Emitting Diodes

  20. Performance of the Third 50 Completed ATP Projects

    E-Print Network [OSTI]

    . .......................................................................................... 43 Cincinnati Lamb, a division of UNOVA Industrial Automation Systems (formerly Lamb Technicon

  1. Full Core, Heterogeneous, Time Dependent Neutron Transport Calculations with the 3D Code DeCART

    E-Print Network [OSTI]

    Hursin, Mathieu

    2010-01-01T23:59:59.000Z

    tubes and baffle and radial reflector. Axially, there are 22Mesh c) Baffle and Radial Reflector Mesh d) Axial Reflector

  2. Analysis of federal policy options for improving US lighting energy efficiency: Commercial and residential buildings

    SciTech Connect (OSTI)

    Atkinson, B.A.; McMahon, J.E.; Mills, E.; Chan, P.; Chan, T.W.; Eto, J.H.; Jennings, J.D.; Koomey, J.G.; Lo, K.W.; Lecar, M.; Price, L.; Rubinstein, F.; Sezgen, O.; Wenzel, T.

    1992-12-01T23:59:59.000Z

    The US Department of Energy (DOE) has recognized the opportunity to achieve energy, economic, and environmental benefits by promoting energy-efficient lighting through federal policies, including lighting standards, financial incentives, and information programs. To assist in this process, the Office of Conservation and Renewable Energy`s Office of Codes and Standards invited Lawrence Berkeley Laboratory to assess prospective national impacts for a variety of policy options. Some progress has already been made in developing lighting policies at both the federal and state levels. The US DOE`s Office of Building Technologies has evaluated lighting efficiency incentives as part of its analysis for the National Energy Strategy. Fluorescent and incandescent lamp standards are included in the national Energy Policy Act of 1992 (P.L. 102-486, October 24, 1992). A few states have analyzed or implemented lamp and luminaire standards. Many policy-related issues merit further investigation. For example, there is considerable debate over issues such as mandatory or voluntary standards versus component labeling and other education-oriented strategies. Several different technologies are involved that interact with each other-lamps (incandescent, compact fluorescent, and HID), ballasts (for fluorescent and HID lamps), and fixtures with reflectors and lenses. Control systems and operation patterns must also be considered (timers, automated dimming, or occupancy sensors). Lighting applications are diverse, ranging from offices, restaurants, hallways, hospital operating rooms, to exterior lights. Lighting energy use influences heating and cooling requirements in buildings. Successful lighting system design must also address interactions between architectural design elements and daylighting availability. Proper system installation and ongoing operation and maintenance are crucial. The economic aspects of the preceding points must also be considered for policy making.

  3. Analysis of federal policy options for improving US lighting energy efficiency: Commercial and residential buildings

    SciTech Connect (OSTI)

    Atkinson, B.A.; McMahon, J.E.; Mills, E.; Chan, P.; Chan, T.W.; Eto, J.H.; Jennings, J.D.; Koomey, J.G.; Lo, K.W.; Lecar, M.; Price, L.; Rubinstein, F.; Sezgen, O.; Wenzel, T.

    1992-12-01T23:59:59.000Z

    The US Department of Energy (DOE) has recognized the opportunity to achieve energy, economic, and environmental benefits by promoting energy-efficient lighting through federal policies, including lighting standards, financial incentives, and information programs. To assist in this process, the Office of Conservation and Renewable Energy's Office of Codes and Standards invited Lawrence Berkeley Laboratory to assess prospective national impacts for a variety of policy options. Some progress has already been made in developing lighting policies at both the federal and state levels. The US DOE's Office of Building Technologies has evaluated lighting efficiency incentives as part of its analysis for the National Energy Strategy. Fluorescent and incandescent lamp standards are included in the national Energy Policy Act of 1992 (P.L. 102-486, October 24, 1992). A few states have analyzed or implemented lamp and luminaire standards. Many policy-related issues merit further investigation. For example, there is considerable debate over issues such as mandatory or voluntary standards versus component labeling and other education-oriented strategies. Several different technologies are involved that interact with each other-lamps (incandescent, compact fluorescent, and HID), ballasts (for fluorescent and HID lamps), and fixtures with reflectors and lenses. Control systems and operation patterns must also be considered (timers, automated dimming, or occupancy sensors). Lighting applications are diverse, ranging from offices, restaurants, hallways, hospital operating rooms, to exterior lights. Lighting energy use influences heating and cooling requirements in buildings. Successful lighting system design must also address interactions between architectural design elements and daylighting availability. Proper system installation and ongoing operation and maintenance are crucial. The economic aspects of the preceding points must also be considered for policy making.

  4. 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.

  5. 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.

  6. Algorithms for Rapid Characterization and Optimization of Aperture and Reflector Antennas

    E-Print Network [OSTI]

    Densmore, Arthur Charles

    2014-01-01T23:59:59.000Z

    integer z_lda, z_ldb, z_ldc; lapack::doublecomplex * z_a, *b, &z_ldb, z_beta, z_c, & z_ldc ); zgesv_( &z_n, &z_nrhs, z_doublecomplex *c, int *ldc, int transa_len, int transb_len);

  7. Benchmark Evaluation of Uranium Metal Annuli and Cylinders with Beryllium Reflectors

    SciTech Connect (OSTI)

    John D. Bess

    2010-06-01T23:59:59.000Z

    An extensive series of delayed critical experiments were performed at the Oak Ridge Critical Experiments Facility using enriched uranium metal during the 1960s and 1970s in support of criticality safety operations at the Y-12 Plant. These experiments were designed to evaluate the storage, casting, and handling limits of the Y-12 Plant and to provide data for the verification of cross sections and calculation methods utilized in nuclear criticality safety applications. Many of these experiments have already been evaluated and included in the International Criticality Safety Benchmark Evaluation Project (ICSBEP) Handbook: unreflected (HEU-MET-FAST-051), graphite-reflected (HEU-MET-FAST-071), and polyethylene-reflected (HEU-MET-FAST-076). Three of the experiments consisted of highly-enriched uranium (HEU, ~93.2% 235U) metal parts reflected by beryllium metal discs. The first evaluated experiment was constructed from a stack of 7-in.-diameter, 4-1/8-in.-high stack of HEU discs top-reflected by a 7-in.-diameter, 5-9/16-in.-high stack of beryllium discs. The other two experiments were formed from stacks of concentric HEU metal annular rings surrounding a 7-in.diameter beryllium core. The nominal outer diameters were 13 and 15 in. with a nominal stack height of 5 and 4 in., respectively. These experiments have been evaluated for inclusion in the ICSBEP Handbook.

  8. 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.

  9. MICROMORPH n-i-p TANDEM CELLS WITH ASYMMETRIC INTERMEDIATE REFLECTORS F.-J. Haug1

    E-Print Network [OSTI]

    Floreano, Dario

    (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

  10. A Novel Leaky-Wave Retrodirective Reflector Using Short/Matched Terminations

    E-Print Network [OSTI]

    Itoh, Tatsuo

    of heterodyne mixing to reflect the signal to any arbitrary angle by varying the LO frequency of the mixer [6 This section presents mono-static (Rx and Tx antennas collocated) transmission (S21) measurements of the RCS

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

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742EnergyOn April 23, 2014, an OHASeptember 2010 | DepartmentEnergyThermalDepartment

  12. Project Profile: Next-Generation Low-Cost Reflector | 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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742EnergyOn April 23, 2014, an OHASeptember 2010 |of Energy TEES logo TexasEnergy SNL

  13. Recovery Act: Low-Cost, Highly Lambertian Reflector Composite For Improved

    Office of Scientific and Technical Information (OSTI)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742EnergyOn AprilAElectronicCurvesSpeedingScientificof ScientificQ LA-UR-RaymondConnect

  14. 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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office511041cloth DocumentationProducts (VAP) VAP7-0973 1BP-14 PowerAdvanced ModelingNuclear ReactorIdeally, we

  15. Cost Effective Measurement and Verification at Fairchild AFB

    E-Print Network [OSTI]

    Culp, C.; Hart, Q.; Turner, B.; Berry-Lewis, S.

    2003-01-01T23:59:59.000Z

    ballasts. Incandescent lighting will be replaced with compact florescent. Incandescent exit signs will be upgraded to Light Emitting Diode (LED) exit signs. The Central Heating Plant (CHP) supplies steam for 79 buildings. This steam plant facility...

  16. Regulation of PHLPP and Akt signaling

    E-Print Network [OSTI]

    Warfel, Noel Andrew

    2011-01-01T23:59:59.000Z

    S. Cheng, P. R. Shepherd, I. Gout, C. P. Downes, R. F. Lamb,S. Cheng, P. R. Shepherd, I. Gout, C. P. Downes, R. F. Lamb,

  17. Household Response To Dynamic Pricing Of Electricity: A Survey...

    Open Energy Info (EERE)

    Allocation, Emissions Mitigation Scheme, Emissions Standards, Enabling Legislation, Energy Standards, Feebates, Feed-in Tariffs, Fuel Efficiency Standards, Incandescent...

  18. Business Case for Energy Efficiency in Support of Climate Change Mitigation, Economic and Societal Benefits in China

    E-Print Network [OSTI]

    McNeil, Michael A.

    2012-01-01T23:59:59.000Z

    Commercial and Industrial End Uses Incandescent Lamps Refrigerators Residential AC (Including Heat Pumps) Washing Machines Fluorescent Ballasts Electric Water Heaters

  19. A microbiological examination of deep muscle tissue of beef, pork and lamb carcasses

    E-Print Network [OSTI]

    Nickelson, Ranzell, II

    1969-01-01T23:59:59.000Z

    organisms did not survive refrigerated storage. The number of rni cr obial isolates from "warm" hog, sheep and beef samples was 82, 32, and 201; for the chilled samples 18, 4 and 123. The data presented in Tables 7 through 9 show num- bers and types... N. D. N. D. 40 N ~ DE N. D Nold, A. anitratum, b Sta h lococcus Sarcina Sta h lococcus b, c N. D. 28 Table 10. (Cont. ) Numbers and types of microorganisms isolated from harn samples at 25C. Sample Aer ohic plate counts/g Anaerobic...

  20. Altered Cerebral Angiogenesis in a Fetal Lamb Model of Persistent Pulmonary Hypertension

    E-Print Network [OSTI]

    Hypertension Bethany Powers, Alexandra Lerch-Gaggl PhD, Teresa Michalkiewicz, Ru Methods Conclusions Hypothesis Persistent pulmonary hypertension of the newborn. "Pulmonary Hypertension in the Neonate." Pulmonary Hypertension in the Neonate. American

  1. Effect of yeast culture and protein solubility on apparent digestibility and nitrogen balance in young lambs

    E-Print Network [OSTI]

    Stone, Charles Wayne

    1977-01-01T23:59:59.000Z

    characteristics of feedstuff-, such as protein solubilit;y in the reticulo-rumen, and the feeding of biological rumen stireulantc like live yca t culture ar. e possible means f' or meeting this challenge So) ubility of proteins within the rumor. has been re...

  2. Effects of dietary potassium and sodium on magnesium and potassium balance in lambs

    E-Print Network [OSTI]

    Poe, Julie Hamilton

    1984-01-01T23:59:59.000Z

    . Molasses in a 1:1 mixture with magnesium oxide (Horvath et al. , 1967) or magnesium acetate (Ross and Gibson, 1969) has prevented low serum Mg levels. Magnesium alloy bullets have been designed to lodge in the reticulo-rumen and slowly release Mg...

  3. The effects of Bio-Mos on lamb growth and immune function

    E-Print Network [OSTI]

    Thayne, Jeffrey Thomas

    2009-05-15T23:59:59.000Z

    infections could limit growth and feed efficiency (Gustafson and Bowen, 1997). The use of antibiotics for prophylaxis is utilized within the industry, however these methods differ from products that are associated with changing ruminal fermentation.... It provides an economic benefit in terms of feed efficiency (an average 7.5% improvement; Goodrich et al., 1984), at least partly via its effect on ruminal fermentation (Wallace, 1994). Several other ionophores have been identified that provide similar...

  4. RENAL FUNCTION AND MICTURITION IN FETAL LAMBS, AND THE EFFECTS OF HYPOXIA

    E-Print Network [OSTI]

    Boyer, Edmond

    bladder catheter; GFR was measured by infusion of E'Cr-EDTA. During hypoxia (the ewe breathing 9% 02H remained high for 1-2 hours. Infusion of adrenaline into a fetal tarsal vein (1.3 I-Bg.min-lfor 1 hourH or the excretion of Na and K. Infusion of arginine vasopressin (2.25 mU. min-' for 1 hour) increased urine

  5. Effects of zeranol on mineral status, bone characteristics, carcass characteristics and performance in growing wether lambs

    E-Print Network [OSTI]

    Hufstedler, Guy Douglas

    1991-01-01T23:59:59.000Z

    entry according to Heitzman (1983). Sharp and Dyer (1972) observed that approximately 10% of the implanted zearalanol was excreted through the urine (urinary excretion peaked at 10-12 d, no detections were made post 90 d), 45% was eliminated... in the feces (peaks occurred earlier than in urine, no detections were observed post 85 d) and 10% remained as residual pellets. Residual pellets were encapsulated by non-vascular tissue which apparently reduced the release rate of the residual zearalanol...

  6. Response of wether lambs to implantation with trenbolone acetate combined with oestradiol-17? at two levels

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    of rib than controls. Significant reductions due to implantation were recorded for concentra- tions of urea and free fatty acids in blood plasma and for proportions of wool fleece and kidney plus channel significantly greater values for plasma urea, the weight (g/kg EBW) of carcass fat, kidney plus channel fat

  7. The livestock mandatory price reporting system: Lamb industry perceptions and impact

    E-Print Network [OSTI]

    Poghosyan, Artak Vahagn

    2002-01-01T23:59:59.000Z

    The livestock mandatory price reporting system was approved by Congress in July of 1999, signed into law on October 22, 1999, and launched on April 2, 2001. In announcing the implementation of the mandatory price reporting system, the USDA claimed...

  8. Lactic acid and trisodium phosphate use on lamb breasts as a means of microbial reduction

    E-Print Network [OSTI]

    Ramirez, Adrian Joe

    1998-01-01T23:59:59.000Z

    The effectiveness of lactic acid and trisodium crographics. phosphate (TSP) in reducing microbial contamination was evaluated both alone and combined by determining the reduction of Escherichia coli and aerobic plate counts (APCs). Breasts removed...

  9. The characterization of Lamb and Rayleigh waves in plates with ramp-like changes in thickness

    E-Print Network [OSTI]

    Uzzell, Christopher Tinsley

    1994-01-01T23:59:59.000Z

    The research described in this thesis uses broadband laser generation and detection techniques to investigate acoustic wave propagation in wedge type structures. The interrogating waves were generated by a Q-switched ND:YAG laser. Fizeau based...

  10. A study of factors influencing the utilization of urea in fattening lambs and in vitro

    E-Print Network [OSTI]

    Hudman, Donald Barton

    1954-01-01T23:59:59.000Z

    in con)unction with, x-rays genus ray, er ultrasonic testiag. R. S~NRS P Sit 1 S~tt Magnetic particle testing uses s heavy current flow or very stroag pernanent aagnets to produce a concentrated nsgnetic field which attracts fine nsgnatic particles... wave length will pro- duce superior sensitivity. For this reason one x-ray machine will effectively cover a complete range of thicknesses up to its capacity. Table 1 shows the optimum kilovoltage used on several thicknesses of steel. lg TABLE 1...

  11. Kiss1 Gene Expression and the Effects of Kisspeptin During Pubertal Development in the Ewe Lamb

    E-Print Network [OSTI]

    Redmond, Jeremy Scott

    2012-02-14T23:59:59.000Z

    Increased pulsatile release of gonadotropin-releasing hormone (GnRH) and luteinizing hormone (LH) is critical for pubertal initiation of ovarian cycles in female mammals. Kisspeptin, a peptide product of the Kiss1 gene, is required for normal...

  12. Turbulent structure of high-density suspensions formed under waves Michael P. Lamb

    E-Print Network [OSTI]

    ; KEYWORDS: wave boundary layer, oscillatory, high-density suspension, fluid mud, turbulent kinetic energy on the interactions between turbulent wave boundary layers and a predominantly silt-sized sediment bed. Under a wide, and sediment concentration revealed that the wave boundary layer, while typically >1 cm thick in sediment

  13. The influence of forced exercise and ration on carcass merit of ewe and wether lambs

    E-Print Network [OSTI]

    Spaeth, Clifford Wayne

    1967-01-01T23:59:59.000Z

    Table Page 49 Analyses of Covariance of Percent Fat and Percent Fat Free of Whole Carcass as Calculated by Specific Gravity Determination and Equation by Meyer (1962) . . 102 50 Analyses of Variance of Percent Muscle and Percent Fat of Whole Carcass... that the circumference of thigh was positively correlated to the retail value of the carcass. Stanley et. al. (1963) reported a significant, but low, relationship between length of body and sum of the weights of leg, loin and rack. Spurlock et al. (1966) developed...

  14. Dietary supplementation of 3-hydroxy-3-methylbutyrate improves catch-up growth in underfed lambs

    E-Print Network [OSTI]

    Boyer, Edmond

    of animals fed the diet supplemented with HMB (0.35%) than in the control group (table I). Despite the lack in a temperature and humidity controlled environment. They were fed once a day a ground concentrate (17% protein in the rumen its salt was directly mixed with the concentrate. The control group was fed a diet with CaC03 (the

  15. A study of factors influencing the utilization of urea in fattening lambs and in vitro 

    E-Print Network [OSTI]

    Hudman, Donald Barton

    1954-01-01T23:59:59.000Z

    for Radiographic Testing of Welds . . . . , ~ . , ~ ~ ~ 17 A. Characteristics of K-rays and K-ray machines 17 B. Characteristics of gasses rays C. Economic differences D. Selection of equipment 20 25 VI. A Design for a Lightweight Gasses Ray Caaera A...-Value Thickness for Shielding Radiographic Sources 39 I. INf ROMCTION Structural engineers today nay use either welding or riveting te effectively loin structural nonhero. The riveted point has been used efficiently for aany years with few failures...

  16. Pollutant Deposition Maps and Analysis Pierre Wong, Joseph Vaughan, and Brian Lamb

    E-Print Network [OSTI]

    Collins, Gary S.

    (thunderstorms), non- convective precipitation events, fog events, and ice events (freezing fog). Overall wind interception, or turbulent transport to the surface. For small particles, turbulent transport

  17. Technical Sessions T. Ackerman, B. Albrecht, D. Lamb, N. Seaman, D. Thomson, and T. Warner

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:Energy: Grid Integration Redefining What'sis Taking Over Our InstagramStructureProposedPAGESafety Tag:8,, 20153 To.T. J. KulpP.T. Ackerman,

  18. Refraction Survey At Mt Princeton Hot Springs Geothermal Area (Lamb, Et

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere IRaghuraji Agro Industries Pvt Ltd Jump to: navigation, searchRayreview ofOzkocak, 1985)HotAl.,1979)Al., 2012)

  19. Maximum Fuel Utilization in Advanced Fast Reactors without Actinides Separation

    E-Print Network [OSTI]

    Heidet, Florent

    2010-01-01T23:59:59.000Z

    surrounded by a thin radial reflector followed by a shield –Radial shield Enriched fuel Large radial reflector Radialshield Small radial reflector Radial blanket Enriched fuel

  20. Integration of Self-Assembled Porous Alumina and Distributed Bragg Reflector for Light Trapping in Si Photovoltaic Devices

    E-Print Network [OSTI]

    Sheng, Xing

    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 ...

  1. Safety and core design of large liquid-metal cooled fast breeder reactors

    E-Print Network [OSTI]

    Qvist, Staffan Alexander

    2013-01-01T23:59:59.000Z

    pitch 30 x Rod Diameter Radial reflectors 2 assembly rows (?mechanical movement of a radial reflector [16]. In the early

  2. Design and Predictive Control of a Net Zero Energy Home

    E-Print Network [OSTI]

    Morelli, F.; Abbarno, N.; Boese, E.; Bullock, J.; Carter, B.; Edwards, R.; Lapite, O.; Mann, D.; Mulvihill, C.; Purcell, E.; Stein, M. IV; Rasmussen, B. P.

    2013-01-01T23:59:59.000Z

    the same amount of light as traditional incandescent bulbs with less energy. Incandescent bulbs are inherently inefficient as most of the energy they consume goes towards heat generation. Compact fluorescent (CFL) and light emitting diode (LED) bulbs... as heat [1]. Compact fluorescent lamps (CFLs) and Light Emitting Diodes (LEDs) were analyzed in comparison with incandescent lamps. To determine the most energy efficient bulb, energy consumption for each type of bulb is needed. To do this, the amount...

  3. Understanding Drooping Light Emitting Diodes CEEM | U.S. DOE...

    Office of Science (SC) Website

    Impact Understanding "droop" may result in cheaper, more efficient LEDs; LEDs are more energy efficient, smaller, and longer-lived than incandescent lamps or fluorescent...

  4. Obama Administration Delivers More than $36 Million to Pennsylvania...

    Office of Environmental Management (EM)

    of incandescent and mercury vapor street light fixtures with energy-efficient light emitting diode (LED) equipment. The retrofitted fixtures will be specially tagged as energy...

  5. U.S. Department of Energy NEPA Categorical Exclusion Determination...

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

    replacements); 3) replacement of incandescent pedestrian signal heads with light-emitting diode (LED) pedestrian signals and traffic signal retrofits to LED; and 4) connection...

  6. --No Title--

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

    18 months at current operating cycles. Incandescent bulbs can be replaced with Light Emitting Diode lamps that use approximately 10 watts of electricity, have a five year...

  7. CX-002177: Categorical Exclusion Determination | Department of...

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

    incandescent traffic signal heads and pedestrian displays to energy efficient light-emitting diode displays; and 3) improve traffic signal system operations and efficiency by...

  8. U.S. Department of Energy Office of Energy Efficiency and Renewable...

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

    incandescent traffic signal heads and pedestrian displays to energy efficient light-emitting diode displays; and 3) improve traffic signal system operations and efficiency by...

  9. CX-000135: Categorical Exclusion Determination | Department of...

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

    involve changing the Tribe's street lights from incandescent bulbs to LED (light-emitting diode) lighting fixtures. DOCUMENT(S) AVAILABLE FOR DOWNLOAD CX-000135.pdf More...

  10. CX-006328: Categorical Exclusion Determination | Department of...

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

    conditioning upgrades, building envelope upgrades, and technology upgrades; 3) light emitting diode traffic signal conversion to replace incandescent bulbs to light-emitting...

  11. U.S. Energy Information Administration (EIA) - Sector

    Annual Energy Outlook 2013 [U.S. Energy Information Administration (EIA)]

    of incandescent bulbs with more efficient compact fluorescent lighting and light-emitting diode (LED) lamps. Among electric end-use services in the residential sector,...

  12. CX-004962: Categorical Exclusion Determination | Department of...

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

    halide light fixtures in the City Hall and Community Center parking lots with light-emitting diode (LED) light fixtures; and 3) replace incandescent light bulbs on traffic...

  13. CX-008898: Categorical Exclusion Determination | Department of...

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

    replacements); 3) replacement of incandescent pedestrian signal heads with light-emitting diode (LED) pedestrian signals and traffic signal retrofits to LED; and 4) connection...

  14. CX-003657: Categorical Exclusion Determination | Department of...

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

    light bulb retrofits, and 5) incandescent traffic signal replacement with light-emitting diode technology. DOCUMENT(S) AVAILABLE FOR DOWNLOAD CX-003657.pdf More Documents &...

  15. Particle Formation from Pulsed Laser Irradiation of Soot Aggregates studied with scanning

    E-Print Network [OSTI]

    2007-01-01T23:59:59.000Z

    incandescence method with scanning mobility particle sizerAde, "Interferometer-controlled scanning transmission X-rayto hamiche@ca.sandia.gov A scanning mobility particle sizer

  16. Catalog of DC Appliances and Power Systems

    E-Print Network [OSTI]

    Garbesi, Karina

    2012-01-01T23:59:59.000Z

    resistance heating and incandescent lighting, the technologyresistance heating or by DC-favoring heat pump technology (technology (electronic fluorescent and LED). Similarly, heating

  17. STATEMENT OF CONSIDERATIONS REQUEST BY OSRAM SYLVANIA FOR AN...

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

    similar to a frosted incandescent bulb. Use of the ceramic enables the size of the remote phosphor to be minimized while maintaining a sufficient thermal path for...

  18. Power Capture (PowCap) Board for Non Intrusive Load Monitoring and Power Line Communication Exploration and Development

    E-Print Network [OSTI]

    Balakrishnan, Vikram

    2013-01-01T23:59:59.000Z

    for the LED Lamp. . . . . . . . . . . . . 6.13 Predictionfor the LED Lamp. . . . . . . . . . . . . Prediction tableappliances, including a) LED lamp, b) incandescent lamp, c)

  19. Journal of Chemical Ecology, Vol.23, No. 4, 1997 CUTICULAR HYDROCARBONS OF TERMITES OF THE

    E-Print Network [OSTI]

    Yorke, James

    --Cuticularhydrocarbons, chemotaxonomy, Isoptera, tropical ter- mites, gas chromatography, mass spectrometry, Virgin Islands, Caribbean scintillation vials over a single 75-W, reflecting incandescent light.

  20. Data:2b268aa5-115c-43cd-b90b-e5f52620aee0 | Open Energy Information

    Open Energy Info (EERE)

    Information Utility name: City of Frankfort, Indiana (Utility Company) Effective date: 19971027 End date if known: Rate name: SL Public Street Lighting 295 watt Incandescent...

  1. Comparison of the accuracy of two methods of adjusting weaning weights of lambs to a constant age

    E-Print Network [OSTI]

    Ragsdale, Bobby Joe

    1957-01-01T23:59:59.000Z

    ? at ~ 05 level L?S?D? ca 11?6 5?? 11 ?7? 0 IV, Between linea Line 1 Line 2 I. ine3 L!ns 4 Line 9 Lin? 10 Line Line Line Line Line Line 1 0 3? 2 0 4 9 10 l?7 5 ~ 1 0 7 ~ 3 ?7 2?3 10?7 2?7 5?7 5 ~ 6 2, 4 ~ 6 0 8 5 0 3 0 L?S?D?at ?01...

  2. Temperature-Compensated and High-Q Piezoelectric Aluminum Nitride Lamb Wave Resonators for Timing and Frequency Control Applications

    E-Print Network [OSTI]

    Lin, Chih-Ming

    2013-01-01T23:59:59.000Z

    low-power microelectromechanical system-based non-volatilecarbide for microelectromechanical systems,” Int. Mater.a promising microelectromechanical systems (MEMS) resonator

  3. Conf Proc IEEE Eng Med Biol Soc. Author manuscript A model of ventilation used to interpret newborn lamb respiratory signals

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Mechanics ; physiology ; Sheep Introduction Respiratory problems are particularly frequent in the neonatal of the neonatal respiratory system is yet available.. Mathematical modeling, which integrates interacting respiratory dynamics. Functionally, the mammalian respiratory system is made of three components: ventilation

  4. Effects of humate on in vitro digestibility, and performance, carcass characteristics, and mineral status of wether lambs

    E-Print Network [OSTI]

    Covington, Brian Reed

    1997-01-01T23:59:59.000Z

    , 1988; Luginbuhl et al. , 1994; Chesson et al. , 1995). The passage of indigestible materials through the reticulo-omasal orifice is dependent upon physical degradation by mastication and rumination. Other factors necessary include microbial...

  5. The tolerance to insulin as related to the general metabolic adaptation associated with ruminal development in suckling lambs

    E-Print Network [OSTI]

    Omar, Esmat M

    1962-01-01T23:59:59.000Z

    AMONG BODY WEIGHTp AGE~ AHD RUMINAL CHARACTERISTICS Reticulo- Pa ilier X Mucosa Variable ruminal wt Len th Width Densit arc sine) Body wt. 0. 904ss 0. 931ss 0, 803** 0, 878** 0, 864se 0, 814** 0. 849se 0. 882ss -0. 843** 0. 812*4 *+ Significant... of ruminal development than to age or body weight. In general, consequences of insulin injection were more highly related to papillary development indices than to reticulo- zuminal weight, (table 14), The above results caused more attention to be focused...

  6. The determination of the bioavailability and the site of absorption in lambs fed different sources of magnesium

    E-Print Network [OSTI]

    Hurley, Leigh Anne

    1988-01-01T23:59:59.000Z

    followed by a 3-d total collection of feces and urine. Fecal excretions and apparent absorptions of Mg increased (P&. 05) 43 and 320'4 respectively, as Ng intakes increased (P&. 05) from . 96 to 1. 85 g/d intake. Apparent Ng absorptions were . 17, . 51...'% with and average of . 10% in order to meet daily Hg requirements . $0 Magnesium Losses Magnesium is lost from the body by three main zoutes: milk, urine and feces (Allczoft and Burns, 1968). The main route of Ng excretion is by way of the feces (Todd, 1976...

  7. Temperature-Compensated and High-Q Piezoelectric Aluminum Nitride Lamb Wave Resonators for Timing and Frequency Control Applications

    E-Print Network [OSTI]

    Lin, Chih-Ming

    2013-01-01T23:59:59.000Z

    Young's modulus of polycrystalline diamond,” Diam. Relat.thin film and a polycrystalline diamond layer on a Si

  8. Temperature-Compensated and High-Q Piezoelectric Aluminum Nitride Lamb Wave Resonators for Timing and Frequency Control Applications

    E-Print Network [OSTI]

    Lin, Chih-Ming

    2013-01-01T23:59:59.000Z

    on super-heterodyne and direct conversion approaches. In theAnother approach is direct conversion architecture whichDespite this truth, the direct conversion architecture still

  9. Resonances of the confined hydrogen atom and the Lamb-Dicke effect in non-relativistic qed

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    In this paper, we study a model of a hydrogen atom (or, more generally, a hydrogeno¨id ion) con- fined by its

  10. adult acquired flatfoot: Topics by E-print Network

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

    cited in Jablonka and Lamb (Jablonka and Lamb, 2002 Burggren, Warren 14 Acquired Dyslexia in Japanese: Implications for Reading Theory . Open Access Theses and Dissertations...

  11. STATE OF CALIFORNIA CERTIFICATE OF COMPLIANCE AND FIELD INSPECTION CHECKLIST

    E-Print Network [OSTI]

    -incandescent luminaires, indicate nominal lamp wattage and lamp type ( i.e.: fluorescent, incandescent, HID); ballast type required on plans for all submittals. OLTG-2C (Page 1 of 3) Lighting Wattage Allowances for General Hardscape, Sales Frontage, or Ornamental Lighting. Optional on plans. OLTG-2C (Page 2 of 3) Lighting Wattage

  12. Electrical modulation of emissivity S. Vassant,1

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    , it is difficult to develop an efficient light emitting diode because the spontaneous emission rate is proportional emitting diodes. Yet, incandescent sources are often the only option in the infrared (IR). Indeed tens of Hz. Hence, for many applications, incandescent light sources can- not compete with light

  13. Author's personal copy Radiative heat transfer in enhanced hydrogen

    E-Print Network [OSTI]

    Pilon, Laurent

    the physical mechanisms responsible for experimental observations that led to the definition of ``photo tube and heated in a furnace or by an incandescent lamp. It was observed that hydrogen release from the glass sample was faster and stronger when heated by an incandescent lamp than within a furnace. Here

  14. Colin Fink was a pioneer in electrochemical processing of materials. Fink is best known for his ground-breaking developments in the electro-deposi:on of metals, and par:cularly for

    E-Print Network [OSTI]

    Columbia University

    :le tungsten for incandescent lamp filaments, an insoluble anode used in the copper Engineering and his inven:on of the alkaline baJery led to the company now known! ! Invented process to produce ductile tungsten for incandescent lamp filaments! ! Taught S. Ruben, who

  15. Student Directions Student Directions: Using your homework from "Building a Fancy Spectrograph" fill in the

    E-Print Network [OSTI]

    Mojzsis, Stephen J.

    Incandescent Bulb Incandescent Bulb Florescent Bulb #12;_________________________________________________________________________________ 7. How does the spectrum from the frosted bulb compare to that of the unfrosted bulb? 8. From number 7, what can you conclude about the material that makes the bulb "frosted?" 9. How is the florescent

  16. North Terrace campus Self-guided Tour

    E-Print Network [OSTI]

    WILLS HORACE LAMB DARLING OLIPHANT BADGER SANTOS PETROL ENG ENGINEERING NORTH ENG SOUTH NORTH TERRACE

  17. J O U R N A L OF THE A M E R I C A N C H E M I C A L S O C I E T Y

    E-Print Network [OSTI]

    Kounaves, Samuel P.

    Becket were shipbuilders. Louis and Elizabeth (Becket) Lamb lived in Attleboro, Mass., where the family

  18. Midtemperature solar systems test faclity predictions for thermal performance based on test data: Solar Kinetics T-700 solar collector with glass reflector surface

    SciTech Connect (OSTI)

    Harrison, T.D.

    1981-03-01T23:59:59.000Z

    Sandia National Laboratories, Albuquerque (SNLA), is currently conducting a program to predict the performance and measure the characteristics of commercially available solar collectors that have the potential for use in industrial process heat and enhanced oil recovery applications. The thermal performance predictions for the Solar Kinetics solar line-focusing parabolic trough collector for five cities in the US are presented. (WHK)

  19. Interest in phased array technology, well suited for tracking satellites, has grown in recent years. However, electronically steered arrays are expensive compared to reflector antennas

    E-Print Network [OSTI]

    Iqbal, Sheikh Sharif

    are investigated in this article. The proposed magnetized semiconductor phase shifter is a potential low cost extraordinary wave resonance of the magnetized semiconductor material. The losses in these regions in the propagating plane. Finally, the phase shift per unit length of a magnetized semiconductor phase shifter

  20. Experimental demonstration of a broadband all-dielectric metamaterial perfect reflector Parikshit Moitra, Brian A. Slovick, Zhi Gang Yu, S. Krishnamurthy, and Jason Valentine

    E-Print Network [OSTI]

    Simaan, Nabil

    -silicon metamaterial with hyperbolic transition in near infrared Appl. Phys. Lett. 103, 021905 (2013); 10 a correlation between the degree of disorder and the reduction in reflectance. It is shown that near-unity reflection is preserved as long as resonator interaction is avoided. Realization of near-unity reflection

  1. GEOPHYSICS, VOL. 55, NO. 6 (JUNE 1990); P. 67Ck.681, 11 FIGS., 1 TABLE. Physical properties of deep crustal reflectors in southern California from

    E-Print Network [OSTI]

    is made to invert for the individual modulus or density contrasts. By examining only gross amplitude a constant noise level at large time then corrected for spherical diver- gence. Gross AVO trends gas would produce a remarkable decrease in Poisson's ratio in compar- ison to surrounding unproductive

  2. Midtemperature solar systems test facility predictions for thermal performance based on test data: AAI solar collector with pressure-formed glass reflector surface

    SciTech Connect (OSTI)

    Harrison, T.D.

    1981-03-01T23:59:59.000Z

    Sandia National Laboratories, Albuquerque (SNLA), is currently conducting a program to predict the performance and measure the characteristics of commercially available solar collectors that have the potential for use in industrial process heat and enhance oil recovery applications. The thermal performance predictions for the AAI solar line-focusing slat-type collector for five cities in the US are presented. (WHK)

  3. Preliminary evaluation of a nondestructive ultrasonic technique for assessing stability of external skeletal fixation pins

    E-Print Network [OSTI]

    Dickens, James Robert

    1992-01-01T23:59:59.000Z

    35 35 39 42 43 46 48 ix CHAPTER Page IV VI LAMB WAVES Definition. Theory of Lamb Waves. Plate Equation Derivation Bar Wave Propagation. Discussion and Summary. EXPERIMENTAL TECHNIQUES. Ultrasonic and Computer Hardware. Probe... modes of Lamb waves traveling in a plate 45 51 Figure 4. 2 Phase speed curves for Lamb waves traveling in a steel plate 52 Figure 4. 3 Figure 5. 1 Group speed curves for Lamb waves traveling in a steel plate Experimental test setup showing...

  4. Development of a Low Cost Ultra Specular Advanced Polymer Film...

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

    Development of a Low Cost Ultra Specular Advanced Polymer Film Solar Reflector Development of a Low Cost Ultra Specular Advanced Polymer Film Solar Reflector This presentation was...

  5. Lighting Market Sourcebook for the U.S.

    E-Print Network [OSTI]

    Vorsatz, D.; Shown, L.; Koomey, J.; Moezzi, M.; Denver, A.; Atkinson, B.

    1997-01-01T23:59:59.000Z

    2.1.4. Residential Lamp Types 2.1.5. Wattage, Hours of Use,all lamp types (mostly incandescent) in all other wattageWattage Category Energy Use (hours per day) lamp types)

  6. Quality characteristics of vacuum-packaged beef as affected by postmortem chill, storage temperature and storage interval

    E-Print Network [OSTI]

    Beebe, Sammy Denzil

    1975-01-01T23:59:59.000Z

    styrofoam tray and overwrapped with Goodyear "Choice Wrap" and displayed under retail conditions (1-3 C under 82 footcandles of incandescent light). The retail cuts were scored for four consecutive days for surface discoloration, peripheral discolora...

  7. INSTITUTE OF PHYSICS PUBLISHING NANOTECHNOLOGY Nanotechnology 15 (2004) 16651670 PII: S0957-4484(04)85144-4

    E-Print Network [OSTI]

    Lorke, Axel

    2004-01-01T23:59:59.000Z

    was measured in situ by time-resolved laser-induced incandescence (TR-LII) and ex situ by rapid thermophoretic distribution and particle morphology was also examined by rapid thermophoretic particle sampling

  8. Commercialization of gallium nitride nanorod arrays on silicon for solid-state lighting

    E-Print Network [OSTI]

    Wee, Qixun

    2008-01-01T23:59:59.000Z

    One important component in energy usage is lighting, which is currently dominated by incandescent and fluorescent lamps. However, due to potentially higher efficiencies and thus higher energy savings, solid-state lighting ...

  9. University of Knoxville Environmental Health and Safety

    E-Print Network [OSTI]

    Tennessee, University of

    of the day Turn off computers at the end of the day Wrapped water heaters with insulating jackets Lowered water heater temperatures Replaced incandescent bulbs with CFL Installed weather stripping along

  10. Efficiency and Sustainability Environmental Health and Safety embraces the principles of sustainability and efficiency. We

    E-Print Network [OSTI]

    Tennessee, University of

    heaters with jacket f. Lower water heater temperatures g. Replaced incandescent bulbs with CFL h. Install. Turn off power strip at the end of the day d. Turn off computers at the end of the day e. Wrapped water

  11. Life-Cycle Assessment of Energy and Environmental Impacts of LED Lighting Products

    Broader source: Energy.gov [DOE]

    This March 28, 2013 webcast reviewed DOE's recently completed three-part study of the life-cycle energy and environmental impacts of LED lighting products relative to incandescent and CFL...

  12. Energy Efficiency and Conservation Block Grant Program

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

    light bulb retrofits, and 5) incandescent traffic signal replacement with light-emitting diode technology Conditions: None Categorical Exclusion(s) Applied: A9, A11, B1.32,...

  13. Energy Blog | Department of Energy

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

    the country. December 1, 2009 Save Money with LED Holiday Light Strings LED (or light emitting diode) light strings can use 90% less energy than regular incandescent light strings....

  14. U.S. Dept of Energy's EECBG-SEP Technical Assistance Program...

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

    how well a source renders color compared to a reference source. So if you think about daylight and incandescent light, which happen to be the standards that we use to compare...

  15. Energy 101: Lighting Choices | Department of Energy

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

    in your home to energy-saving incandescent, compact fluorescent lamp (CFL), or light emitting diode (LED) bulbs could save you about 50 per year. For more information on lighting...

  16. Small Wind Guidebook/First, How Can I Make My Home More Energy...

    Open Energy Info (EERE)

    as 10% on heating and cooling. Installing exterior or interior storm windows can reduce heat loss through windows by 25% to 50%. Replacing 15 incandescent light bulbs with energy...

  17. Physics 240 Box Contents 11 May 2011

    E-Print Network [OSTI]

    Hart, Gus

    ea. LED, ultra bright yellow 2 ea. LED, ultra bright orange 1 ea. 2N3904, npn small-signal transistor. 7414, inverter 1 ea. 7432, OR gates 2 ea. 7490, decade counter 1 ea. #47 incandescent lamp #12;

  18. Catalog of DC Appliances and Power Systems

    E-Print Network [OSTI]

    Garbesi, Karina

    2012-01-01T23:59:59.000Z

    as do HID lamps, and an LED lamp includes electronic driverT8, and CFL lamps CFL lamps LED lamp CFL floodlight LightingIncandescent, fluorescent, and LED lamps Electric resistance

  19. Physics 240 Box Contents 11 December 2007

    E-Print Network [OSTI]

    Hart, Gus

    . 1N4734, Zener diode, 5.6 V 2 ea. LED, ultra bright yellow 2 ea. LED, ultra bright orange 1 ea. 2N. #47 incandescent lamp #12;

  20. 38 CHAPTER 1. ASSEMBLY MANUAL BiDirectional Motor

    E-Print Network [OSTI]

    38 CHAPTER 1. ASSEMBLY MANUAL Bi­Directional Motor and Infrared Beacon Uni­Directional Motor, LED, Incandescent Lamp Sensor, Polarized Sensor, Non­polarized Figure 1.26: Standard Connector Plug Configurations

  1. Gas-source molecular beam epitaxial growth and characterization of the (Al,In,Ga)NP/GaP material system and Its applications to light-emitting diodes

    E-Print Network [OSTI]

    Odnoblyudov, Vladimir

    2006-01-01T23:59:59.000Z

    for indicator lamp application, but the LED structure can befor indicator lamp application, but the LED structure can beLEDs are the ultimate goal to replace incandescent and fluorescent lamps

  2. Sandia National Laboratories: Lighting

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

    Lighting Solid-State Lighting Science EFRC On November 11, 2010, in Welcome History of Incandescence History of LEDs Grand Challenges Our EFRC SSLS-EFRC Contacts News Publications...

  3. LED Replacement Lamps: Current Performance and the Latest on ENERGY STAR®

    Broader source: Energy.gov [DOE]

    This May 19, 2009 webcast summarized CALiPER's recent benchmark testing of common omnidirectional incandescent lamps (e.g., A-lamps), and provided an update on ENERGY STAR criteria for LED integral...

  4. Design and implementation of a solar power system in rural Haiti

    E-Print Network [OSTI]

    Hussam, Shaheer M. (Shaheer Muqtasid), 1981-

    2004-01-01T23:59:59.000Z

    This paper describes the design and implementation of a solar power system for a school and health center in Petit-Anse, Haiti. The end-use applications are lighting via a set of fluorescent and incandescent bulbs, and a ...

  5. The relationship between prices of lamb carcasses at Chicago and New York and prices of live animals at Fort Worth, 1947-49

    E-Print Network [OSTI]

    Drake, Paschal Otho

    1951-01-01T23:59:59.000Z

    ~es of eeoh f4' acr thea info~ either bg eslsahoas er tsletp~ the '. xtoe 4o bs;~M foe 8iffsrent ~ of lsab fog the de@. Vhs eely ~nb fasted Xefb to ths 4@NWem4 ~ ie eebiaeblae ths ~ of 4hs as&ale oe be ~eo. ~ee eeeseos see heyt ae She so~bee of each ~ eee... & eely aha seel es he4. Xa 4h4a see eee eoseee 45 eeeef yse4 ef Ne ~ef ae gee %be agye aal qooseNg ef yge? de@4 ~ casa+ fhe sew Yeah ~ete Iesh ~% see cheese fe? ~"~ heeeee? t~ ~~ %he ~4 ohoIeeele Ieeh ~ ta %he ~ lech ~ ing ~ (Fluoro 2). &I yrioe q...

  6. The effect of confinement in metabolism stalls on the cortisol, antibody production, and antibody-dependent cell-mediated cytotoxicity of tame lambs

    E-Print Network [OSTI]

    Hsieh, Man-Ling

    1993-01-01T23:59:59.000Z

    stimulation of the reticulo- endothelial system by either specific stimuli (such as antigen-specific antibody production by B lymphocytes) or non-specific stimuli (such as phagocytosis) (Clark et al. , 1976). Research in psychoimmunology employs a variety...

  7. Lion and Lamb—The Strong Black Woman Gets Abused: “Afflictions of Specialness” in Post-Feminist and Post-Civil Rights Film

    E-Print Network [OSTI]

    Sheppard, Samantha N.

    2009-01-01T23:59:59.000Z

    Cinema, ed. Manthia Diawara. New York, NY: Rutledge, 1993.Cinema, ed. Manthia Diawara. New York, NY: Rutledge, 1993.Cinema, ed. Manthia Diawara. New York, NY: Rutledge, 1993.

  8. Evaluation of physical, chemical, sensory and microbial characteristics of low-fat precooked lamb and fresh pork sausages made with konjac flour

    E-Print Network [OSTI]

    Osburn, Wesley Neil

    1992-01-01T23:59:59.000Z

    of fat decreases (Cross et al. , 1980; Berry and Leddy, 1984). Keeton (1983) reported that as fat levels increased from 20 to 30/o, overall sensory panel scores for juiciness increased for ground pork patties. Reagan et al. (1983) found no significant... to release the glucomannan which emerges as a tangled mass of thread-like molecules and dissolves to produce a pseudoplastic solution. The viscosity of a konjac flour solution is determined by the concentration used, the shear rate and temperature...

  9. Evaluation of physical, chemical, sensory and microbial characteristics of low-fat precooked lamb and fresh pork sausages made with konjac flour 

    E-Print Network [OSTI]

    Osburn, Wesley Neil

    1992-01-01T23:59:59.000Z

    . Hydroxyproline Content. . . Caloric Content. Trained Sensory Panel. Texture Profile Analysis. . Microbiological Analysis. Statistical Analysis. Results and Discussion. Page . . . . . . 33 . 35 . . . . . . 35 . . . . . . . . 35 . 37 . . . . . . . . 37... . . . . 39 . . 40 . . 41 . . . 41 Desinewed Yields and Temperature. . . . . Total Collagen. Proximate Analysis. . Cooked Effects. . Caloric Content. . . . . . . 41 . . . . . . 47 . 49 Microbiological Analysis. Sensory Evaluation. . Texture...

  10. Effects of zeranol on serum concentrations of growth hormone, IGF-I and metabolites and on carcass composition of lambs fed at two levels of intake

    E-Print Network [OSTI]

    Scott, Patricia Lynn

    1995-01-01T23:59:59.000Z

    libitum and restricted access to feed were slaughtered after 98 and 154 d, respectively. Zeranol increased average daily gains (ADG) and gain to feed by 20 (P <.05) and 17% (P < .03), respectively. Carcass fat percentage tended to be reduced by 7.4...

  11. STATE OF CALIFORNIA NATURAL RESOURCES AGENCY EDMUND G. BROWN JR., Governor CALIFORNIA ENERGY COMMISSION

    E-Print Network [OSTI]

    Ballasts, Light-emitting Diodes, and Multifaceted Reflector Lamps · Water Appliances (Docket #12-AAER-2C

  12. Surplus Auction There will be a Public Auction of Surplus Equipment and Furniture for Truman State University at the Dulaney/Baldwin

    E-Print Network [OSTI]

    Gering, Jon C.

    Scientific hotplate, Ohaus balance, Fisher PH Meter, (45) Portfolio Cooper Light Reflectors, floor scrubber

  13. Research and Graduate Studies at KU Newsletter, February 2013

    E-Print Network [OSTI]

    2013-02-01T23:59:59.000Z

    faculty members, graduate students, postdoctoral fellows, and industrial researchers. At the 2012 meeting, Lamb was joined by two of her doctoral students, Anindita Basu and Blake Balcomb. According to Lamb, the conference serves as a “forum...

  14. Original article Changes in cell number and size and in lipogenic

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    tissues during growth and fattening of Lacha (Manech) lambs A Purroy JA Mendizabal, B Soret A Arana, FJ

  15. Estimate of genetic and phenotypic parameters for the Dorper, Red Masai and their crosses in Naivasha (OL'Magogo), Kenya

    E-Print Network [OSTI]

    Kiriro, Philip Macharia Muthami

    1986-01-01T23:59:59.000Z

    lambing. Lambs were weighed, navel cord disinfected, identified and sex and type of birth recorded. Docking was done using a rubber ring one wk after birth. The orphan lambs were fostered and all the lambs were weighed monthly until they were 1 yr..., ewe identification for each mating group, sires used and the 27 year. Iamb in g Iambs were identified at birth and birth weight, birth date, month and year, sex, type of birth and still births were recorded. Difficult lambing and abortions were...

  16. GaAs multiple-quantum-well reflector modulators with 4:l contrast ratios A. Salvador, K. Adorni,@K. Kishino,b) M. S. l%U, and H. Morkoq.

    E-Print Network [OSTI]

    ,,, G%,,As (3 X 1018cmv3 be- `) On leave from Shin-Etsu Handotai Co., Ltd., Gunma, Japan. "On leave from

  17. Comparison of femtosecond and nanosecond laser-induced damage in HfO{sub 2} single-layer film and HfO{sub 2}-SiO{sub 2} high reflector

    SciTech Connect (OSTI)

    Yuan Lei; Zhao Yuanan; Shang Guangqiang; Wang Chengren; He Hongbo; Shao Jianda; Fan Zhengxiu [Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800 (China) and Graduate School of the Chinese Academy of Sciences, Beijing 100039 (China); Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800 (China); Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800 (China) and Graduate School of the Chinese Academy of Sciences, Beijing 100039 (China); Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800 (China)

    2007-03-15T23:59:59.000Z

    HfO{sub 2} single layers, 800 nm high-reflective (HR) coating, and 1064 nm HR coating were prepared by electron-beam evaporation. The laser-induced damage thresholds (LIDTs) and damage morphologies of these samples were investigated with single-pulse femtosecond and nanosecond lasers. It is found that the LIDT of the HfO{sub 2} single layer is higher than the HfO{sub 2}-SiO{sub 2} HR coating in the femtosecond regime, while the situation is opposite in the nanosecond regime. Different damage mechanisms are applied to study this phenomenon. Damage morphologies of all samples due to different laser irradiations are displayed.

  18. Radiant energy collector. [Patent application

    DOE Patents [OSTI]

    McIntire, W.R.

    1980-02-14T23:59:59.000Z

    A cylindrical radiant energy collector is provided which includes a reflector spaced apart from an energy absorber. The reflector is of a particular shape which ideally eliminates gap losses.

  19. Note LPSC 07-37 The TMSR as Actinide Burner and Thorium Breeder

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    are made of ZrC and not of graphite. The radial reflector consists in graphite channels containing a binary

  20. NTUHEP 962 KEK Preprint 9682

    E-Print Network [OSTI]

    damage is observed within measurement errors. 1 Introduction Sheets of white fluorocarbon reflectors the level of a few hundred kilorads. Reports on radiation damage tests on fluorocarbon reflectors however, have not been available. Since Goretex porous fluorocarbon reflectors[1] are being considered

  1. DOI: 10.1002/adfm.200700251 Control of Specular and Diffuse Reflection of Light Using Particle

    E-Print Network [OSTI]

    Lee, Ilsoon

    reflectors are widely used in the back-light units of liquid crystal display (LCD) panels,[1­4] light-emitting diodes (LED)[5,6] and solar cell devices.[7,8] A perfect diffuse reflector is matter that reflects and low solar absorption, metals easily satisfy the general requirements for diffuse reflectors

  2. High efficiency quasi-monochromatic infrared emitter

    SciTech Connect (OSTI)

    Brucoli, Giovanni; Besbes, Mondher; Benisty, Henri, E-mail: henri.benisty@institutoptique.fr; Greffet, Jean-Jacques [Laboratoire Charles Fabry, UMR 8501, Institut d’Optique, CNRS, Université Paris-Sud 11, 2, Avenue Augustin Fresnel, 91127 Palaiseau Cedex (France); Bouchon, Patrick; Haïdar, Riad [Office National d’Études et de Recherches Aérospatiales, Chemin de la Hunière, 91761 Palaiseau (France)

    2014-02-24T23:59:59.000Z

    Incandescent radiation sources are widely used as mid-infrared emitters owing to the lack of alternative for compact and low cost sources. A drawback of miniature hot systems such as membranes is their low efficiency, e.g., for battery powered systems. For targeted narrow-band applications such as gas spectroscopy, the efficiency is even lower. In this paper, we introduce design rules valid for very generic membranes demonstrating that their energy efficiency for use as incandescent infrared sources can be increased by two orders of magnitude.

  3. Cost-effective Lighting Retrofits: Lessons Learned

    E-Print Network [OSTI]

    Fisher, M. D.

    1994-01-01T23:59:59.000Z

    in cramped fixtures. Those who replace lamps are often more likely to replace failed integral units with cheap incandescents again, while with component-type units they tend to replace the failed fluorescent lamp only. - Where incandescent lamps are on a... fixtures, 9 and 13 watt quad tubes may not start in freezing weather. Twin 9be lamps of similar wattages may be a better ioice. Power factor can be quite low on some lagnetic ballasted products, while total ~rmonic distortion can be high on some...

  4. A VSP transformation technique for the determination of subsurface structure

    E-Print Network [OSTI]

    Malloy, Jeffrey Edward

    1985-01-01T23:59:59.000Z

    offset is 305 m, and reflector depth is 3000 m. . . . . . . . . . . . . . . . . , . . . . . . . 13 5 Plot showing normalized coverage as a function of dip of the reflector. Source offset is 305 m. Reflector depth is 2000 m, 6 Plot showing normalized... Geometry showing significance of as. 10 Physical significance of angle uo. 20 22 11 Stacking fold vs. bin offset for a reflector at 2000 m with a dip of 15'. Source offset is 305 m. 23 12 Stack'ing fold vs. bin offset for a reflector at 2000 m with a...

  5. Practical adaptation in bulk superconducting magnetic bearing applications C. K. McMichael,`) K. B. Ma, M. A. Lamb,a)M. W. Lin,b)L. Chow,@R. L. Meng, P. H. Hot-,

    E-Print Network [OSTI]

    Chow, Lee

    of higher quality materials produced by the texturing processes,`-3 and with further increases being very- ing stator. Yet another problem with SMBs involve gap stabilization over long periods of time, arising by using high quality melt-textured YBCO material placed between the rotor and the stator magnets

  6. The use of production records as a method for improving the reproductive performance of Rambouillet sheep

    E-Print Network [OSTI]

    Lewis, Ronald Martin

    1986-01-01T23:59:59.000Z

    and lamb birth weights . Regression models . . . . . . . . . . . . . . ~ ~ ~ ~ Statistical utility 30 34 35 37 38 39 40 40 40 41 41 42 vii TABLE OF CONTENTS (CONTINUED) RESULTS AND DISCUSSION Page Flock recording scheme Recording scheme... FOR LAMB BIRTH WEIGHT BY AGE OF EWE, EWE AND LAMB BIRTH TYPE AND SEX 123 xA LIST OF EXHIBITS EXHIBIT Pege ALPHABETIC AND NUMERIC CODES USED IN THE RECORDING SCHEME 46 INPUT FORM FOR RECORDING THE IDENTIFICATION AND PEDIGREE OF EWES ADDED TO THE FLOCK...

  7. The use of Texel, Dorper, Suffolk, and Rambouillet rams in terminal crossbreeding programs on fine wool type sheep to improve growth rate and carcass composition of offspring

    E-Print Network [OSTI]

    Taylor, Todd Allen

    2001-01-01T23:59:59.000Z

    the Suffolk-crosses to have less kidney and pelvic fat. When compared with most other breeds, Texel-aired lambs seem to have an advantage in proportion of lean to fat (Cameron and Drury, 1985). In Europe, Texel- sired lambs were compared to several other... English breeds bred to crossbred ewes. Texel-sired lambs reached a mature weight soinewhat sooner than most other breeds, and have a higher lean to fat ratio (Cameron and Drury, 1985). Differences between Texel- and Suffolk-sired lamb carcasses seem...

  8. Battery Safety Testing

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

    Battery Safety Testing Christopher J. Orendorff, Leigh Anna M. Steele, Josh Lamb, and Scott Spangler Sandia National Laboratories 2014 Energy Storage Annual Merit Review...

  9. assessing deposition levels: Topics by E-print Network

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

    and testicular steroidogenesis Dolores J. Lamb; George M. Stancel 70 A Radon Progeny Deposition Model Nuclear Experiment (arXiv) Summary: The next generation...

  10. Solar energy concentrating and collecting arrangement

    SciTech Connect (OSTI)

    Barr, I.R.

    1986-07-29T23:59:59.000Z

    A solar energy concentrating and collecting arrangement is described comprising a generally upwardly facing concave generally partial cylindrical trough reflector fixedly positioned during operational reflection and having three radii, each radius forming an effective overall arc segment along the effective partial cylindrical length of the relector, the center of the radius of each radii lying on a respective axis line extending along the longitudinal extent of the partial cylindrical trough reflector, and a collector having a longitudinal extent extending along the length of the reflector and disposed in parallel spaced relation from the effective reflecting surface of the reflector and movable support means movably supporting the collector for movement transversely of its longitudinal extent across a portion of the arcuate width of the reflector to enable selected positioning of the collector at varied lateral positions across the width of the reflector as a function of sun angle of elevation for maximizing pickup of reflected solar energy from the operationally fixed position reflector.

  11. Utilization of oilseed proteins in ground beef formulations

    E-Print Network [OSTI]

    Marshall, William Houston

    1973-01-01T23:59:59.000Z

    , overwrapped with a oxygen permeable film (Goodyear Choice Wrap) and placed in a retail display case. The case temperature was maintained at O'C. The case was illuminated for 12 hr periods with 82 footcandles of incandescent light. The samples were rated...

  12. Energy Savings and Green Initiatives Project Grant

    SciTech Connect (OSTI)

    Kathy MacLennan

    2011-11-21T23:59:59.000Z

    This project entails retrofitting all four foot, 2, 3 and 4 bulb 40 watt T12 fixtures to T8 28 watt and 150 watt incandescent to 26 watt compact fluorescent bulbs. In total, 2,086 fixtures will be retrofitted

  13. Today LED Holiday Lights, Tomorrow the World?

    SciTech Connect (OSTI)

    Gordon, Kelly L.

    2004-12-20T23:59:59.000Z

    This article for The APEM Advantage, the quarterly newsletter of the Association of Professional Energy Managers (APEM) describes the recent increase in the popularity of light emitting diode (LED) lighting and compares LED light output with that of incandescent and compact fluorescent lighting.

  14. Energy Efficiency ISSN 1570-646X

    E-Print Network [OSTI]

    Illinois at Chicago, University of

    ConEd Consolidated Edison CRT Cathode ray tube LCD Liquid crystal display LED Light emitting diode included combustion, incandescent and compact fluorescent (CFL) bulbs, and now light emitting diode (LED emitting diodes (LED), has been sug- gested as a way of reducing energy used for lighting. Such predictions

  15. Numerical Modelling of Light Emission and Propagation in (Organic) LEDs with the Green's Tensor

    E-Print Network [OSTI]

    Floreano, Dario

    light emitting diodes, light emission, light extraction, dipole radiation, stratified media, layered surpasses incandescent sources by a factor of 2 and with further improvements light emitting diodes could on light extraction techniques from inorganic light emitting diodes we recommend chapter 5 in 1 . Organic

  16. Technical Report Documentation Page 1. Report No.

    E-Print Network [OSTI]

    and solar panels. 17. Key Words Solar Energy, Light Emitting Diodes (LED), Intersections, Incandescent Bulbs No. 3. Recipient's Catalog No. 4. Title and Subtitle Feasibility of Solar Powered Traffic Signs. By retrofitting the signals to solar energy and switching to LED the city will see major energy and cost savings

  17. Energy-Efficient Lighting The typical American family spends more

    E-Print Network [OSTI]

    Energy-Efficient Lighting The typical American family spends more than $1,500 a year on household their energy efficiency is taken into account. CFLs last 8­10 times longer than standard incandescent bulbs energy bills--and many households spend considerably more. Costs could climb even higher in the future

  18. Optical Wireless based on High Brightness Visible LEDs Grantham Pang, Thomas Kwan, Hugh Liu, Chi-Ho Chan

    E-Print Network [OSTI]

    Pang, Grantham

    and encoded with audio or data signal. Hence, an LED indicator lamp or traffic light can become an information for incandescent lamps [3,4]. This advancement has led to the production of large- area full-color LED displaysOptical Wireless based on High Brightness Visible LEDs Grantham Pang, Thomas Kwan, Hugh Liu, Chi

  19. DUAL USE OF LEDS: SIGNALING AND COMMUNICATIONS IN ITS Grantham Pang, Chi-ho Chan, Hugh Liu, Thomas Kwan

    E-Print Network [OSTI]

    Pang, Grantham

    of an incandescent lamp is 800 hours while the life expectancy of LED is 10-23 years. This result shows that LED has : · LED indicator lamps (as in some dashboard, traffic signals, card readers). · LED displays (1 DUAL USE OF LEDS: SIGNALING AND COMMUNICATIONS IN ITS Grantham Pang, Chi-ho Chan, Hugh Liu

  20. Lesson Summary In this activity, students build and decorate their own

    E-Print Network [OSTI]

    Mojzsis, Stephen J.

    Materials Each Student Needs: · 1- 7 inch Oatmeal container · 1- 3 x 5 Index card · 1 Exact-o knife · 1 Construction paper · Masking tape · 1 Incandescent light bulb · Thick black markers · Markers, aluminum foil or atmosphere. #12;Group Size 1 Expendable Cost per Group $4 Engineering Connection Spectrographs are used both

  1. The light-emitting diode (LED) is an fairly new kind of light source found currently in

    E-Print Network [OSTI]

    The light-emitting diode (LED) is an fairly new kind of light source found currently in only a few applications, such as traffic lights and exit signs. As a relatively untested technology, luminaire this technology an ideal replacement for less efficient incandescent light sources, particularly in applications

  2. Peak Power Reduction Strategies for the Lighting Systems in Government Buildings

    E-Print Network [OSTI]

    Al-Nakib, D.; Al-Mulla, A. A.; Maheshwari, G. P.

    2010-01-01T23:59:59.000Z

    fluorescent lamps with ECGs, CFLs, incandescent lamps and light emitting diodes (LEDs). The building has a peak load of around 2900 kW and it is mainly shared by A/C and lighting. Lighting system is controlled by DELMATIC software which controls...

  3. A positive vision for restoring balance to the carbon cycle, while allowing for global growth in population and wellbeing

    E-Print Network [OSTI]

    Eisen, Michael

    of the Earth is located between one solid mass, whose central heat may surpass that of incandescent matter, into dark radiant heat... This distinction between luminous heat and dark heat explains the increase basis for influence of Water and CO2 on Earth's temperature "As a dam built across a river causes

  4. Labeling energy cost on light bulbs lowers implicit discount rates Jihoon Min a

    E-Print Network [OSTI]

    Michalek, Jeremy J.

    Analysis Labeling energy cost on light bulbs lowers implicit discount rates Jihoon Min a , Inês L considerably. To quantify the influence of factors that drive consumer choices for light bulbs, we conducted incandescent bulbs. About half of the total lighting service (in terms of lumens) was provided by incandes

  5. The atoms may be charged or neutral (how?) mass range: 1.67 10-27

    E-Print Network [OSTI]

    : where does our food come from? different plants have a different isotope content What other uses (2008) *mention UCSB project "Children of the corn" #12; Can we get energy from atoms? ... fusion and fission "The sun is a mass of incandescent gas A gigantic nuclear furnace Where hydrogen is built

  6. Research paper Impact of the eruptive activity on glacier evolution at Popocatpetl Volcano

    E-Print Network [OSTI]

    Kääb, Andreas

    , Colombia, the eruption melted, fractured and destabilized the ice cap (Thouret, 1990). On the other hand to melting processes. The most important loss occurred over 2000­2001 when 19% of the glacier-covered area and low activity. Pyroclastic flow generation, ejection of incandescent material, and tephra fall affected

  7. UBC Social Ecological Economic Development Studies (SEEDS) Student Report Developing a Sustainable Food Outlet for UBC Food Services in the New Beaty

    E-Print Network [OSTI]

    comparison of energy use and light output between 42 standard incandescent bulbs and ES-qualified CFLs 9. CNA design, energy usage, waste management and menu options, amongst other things. We also showcase Surveys 15 E. Promotional Education Tool 16 i) Promotional Tools 16 ii) Educational Tools 17 F. Waste

  8. Original article Development of the rumen digestive functions

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Original article Development of the rumen digestive functions in lambs placed in a sterile isolator Digestion Microbienne, 63122 Saint-Genès-Champanelle; 3 CNRS, Laboratoire de Biologie Comparée des Protistes 1991 ) Summary ― The development of the rumen digestive functions was studied in lambs placed

  9. of dehydrated pelleted hay transit through the digestive tract. Nevertheless, this increase in calcium urinary and faecal excretion may be responsible for the bone deformation observed in

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    of dehydrated pelleted hay transit through the digestive tract. Nevertheless, this increase dehydrated pelleted hay during a long time. In lambs fed dchydrated pelleted rye-grass hay, the daily urinary was not observ- ed in lambs fed dehydrated pelleted lucerne hay. Thus, the calcium content of the hay seems

  10. Survey mirrors and lenses and their required surface accuracy. Volume 2. Concentrator optical performance software (COPS) user's manual. Final report for September 15, 1978-December 1, 1979

    SciTech Connect (OSTI)

    Not Available

    1980-01-01T23:59:59.000Z

    The mathematical modeling of 11 different concentrating collectors is documented and instructions are given for use of the computer code. The 11 concentrators modeled are: faceted mirror concentration; fixed mirror, two-axis tracking receiver; parabolic trough collector; linear Fresnel; incremental reflector; inflated cylindrical concentrator; CPC-involute reflector with evacuated receiver; CPC-parabolic/involute reflector; V trough collectors, imaging collapsing concentrator; and parabolic dish collector. (MHR)

  11. Project Profile: Next-Generation Parabolic Trough Collectors...

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

    The goal is to move away from the limitations of: Current technologies that rely on glass reflectors and receiver tubes from limited suppliers Traditional structures that...

  12. ac propulsion system: Topics by E-print Network

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

    systems that have been developed by the solar thermal community for use with Stirling engines. Additionally, the highly effective back-surface reflector integrated into...

  13. Department

    Office of Legacy Management (LM)

    but also indicates that the properties of most reflectors depart from the ideal planar case. The low scores are consistent with reflections from fracture zones that contain...

  14. THE WHITE MOUNTAIN POLARIMETER TELESCOPE AND AN UPPER LIMIT ON COSMIC MICROWAVE BACKGROUND POLARIZATION

    E-Print Network [OSTI]

    Timbie, Peter

    . 2005; O'Dwyer et al. 2005; Donzelli 2006), and uses iden- tical aluminum coated carbon fiber reflectors gear.12 This table, as described in Mei

  15. Seismic Reflection Data and Conceptual Models for Geothermal...

    Open Energy Info (EERE)

    fault surface reflectors dipping away from therange front. Interpreted faults at Blue Mt., where severalwells have been drilled, correlated with well entries.Subsequent well...

  16. Evolution-equation approach to seismic image, and data ...

    E-Print Network [OSTI]

    2008-08-26T23:59:59.000Z

    Jun 2, 2008 ... of reflectors under varying background media, or the repeated ...... [50] F. Andersson, M. De Hoop, H. Smith, G. Uhlmann, A multi-scale ...

  17. Next-Generation Solar Collectors for CSP

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

    reflective films, optically accurate reflector panels, low-cost space frames, adaptive optics, and accurate tracking drives * Designing and building a large-format heliostat design...

  18. Postdoctoral Research Awards Annual Research Meeting: Sarah Cowan...

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

    & Publications EERE Postdoctoral Research Awards Annual Meeting Posters Development of a Low Cost Ultra Specular Advanced Polymer Film Solar Reflector Nano-structures...

  19. STATE OF CALIFORNIA ENERGY RESOURCES CONSERVATION

    E-Print Network [OSTI]

    ; Multi-faceted reflector (MR) lamps; Light-emitting diode (LED) lamps EISA exempt lamps; Lighting;3 Consumers Electronics Association; Pacific Gas and Electric Company, Southern California Edison

  20. Project Profile: Commercial Development of an Advanced Linear...

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

    make significant improvements in the cost and viability of utility-scale dispatchable solar power. Approach Image of Skyfuel producing lightweight reflector panels at its...

  1. Stratigraphic Heterogeneity of a Holocene Ooid Tidal Sand Shoal: Lily Bank, Bahamas

    E-Print Network [OSTI]

    Sparks, Andrew

    2011-08-31T23:59:59.000Z

    ........................................................................................................................ 5 Regional Trends in Reflectors and Units .................................................................................................. 7 SEDIMENTOLOGY OF THE HOLOCENE SUCCESSION... ...................................................................... 8 Lagoon Sedimentology and Stratigraphy .................................................................................................. 8 Channel (Inter-bar) Sedimentology and Stratigraphy...

  2. Compact light source performance in recessed type luminaires

    SciTech Connect (OSTI)

    Hammer, E.E.

    1998-11-01T23:59:59.000Z

    Photometric comparisons were made with an indoor, recessed, type luminaire using incandescent, high intensity discharge and compact fluorescent lamps. The test results show substantial performance advantages, as expected, for the discharge light sources where the efficacy gains can be in the order for 400% even when including the ballast losses associated with the discharge lamps. The candlepower distribution patterns emerging from these luminaries are also different from those associated with the baseline incandescent lamps, and which are in some ways, even more desirable from a uniformity of illuminance perspective. A section on fluorescent lamp starting is also included which describes a system having excellent starting characteristics in terms of electrode starting temperature (RH/RC technique), proper operating frequency to minimize unwanted IR interactions, and satisfactory current crest factor values to help insure life performance.

  3. Outdoor Cooking.

    E-Print Network [OSTI]

    Douglas, Jenoyce; Reasonover, Frances

    1967-01-01T23:59:59.000Z

    ham slices; sirloin, T-bone; rib and ribeye steaks; lamb or pork chops; beef or lamb cubes or patties; Cana. dian bacon; and some varieties of sausage; fryers and fish. Some outdoor cooks prefer a large sirloin steak about 1% inches thick. Allow 1..., sirloin tips and high /-I quality (low choice) chuck and arm roasts are suitable for this 0 .' type of cooking. Lamb, pork and bologna may also be used. / (-)/ Poultry for this method include rock cornish game hen, broiler 1 \\ or fryer, roaster...

  4. High-Rise Residential Building Energy Analysis in Shanghai, China

    E-Print Network [OSTI]

    Zhou, Hongyun

    2014-07-30T23:59:59.000Z

    Weather for Energy Calculation 2.0 LBNL Lawrence Berkeley National Laboratory LED Light Emitting Diode MBE Mean Bias Error MVR model Multi-Variable Regression models NMBE Normalized Mean Bias Error PCM... heating. Therefore, lighting fixtures and domestic appliances used the most energy in this survey. For lighting fixtures, incandescent and fluorescent lamps are the most popular, only a small number of light-emitting diode (LED) lights were used (Chen...

  5. Energy Use, Information, and Behavior in Small Commercial Buildings

    E-Print Network [OSTI]

    Haberl, J. S.; Kempton, W.; Komor, P.

    2009-02-20T23:59:59.000Z

    management and tenant businesses. Here we describe both the method by which equipment choice decisions are made and the system for sharing energy costs. Equipment choice In a privately owned residence, the homeowner pays the energy bills and makes any...-type incandescent lamps to emphasize certain merchandise. No business, however, mentioned that the energy costs of additional spot lighting (both for lighting and for additional cooling load) are quite high. Further information about lighting was obtained with a...

  6. Development and Construction of Bioclimatic Double Skin Active Facade for Hot and Humid Climate of UAE 

    E-Print Network [OSTI]

    Karbor, R. G.; Mohamed, I.

    2010-01-01T23:59:59.000Z

    tracking venetian blinds, LED (light emitting diodes) lighting and Building Management system. 1.01 Modeling And Simulation Of Double Skin Active Facade The modeling and simulation of the Double Skin Fa?ade Cavity is a complicated task, since... sweating/condensation on the water coil. 3.06 LED (Light Emitting Diode) Lighting The building is illuminated using extremely energy efficient LED?s which last 5 times as long as fluorescents and 50 times longer than typical incandescent. So...

  7. High-Rise Residential Building Energy Analysis in Shanghai, China 

    E-Print Network [OSTI]

    Zhou, Hongyun

    2014-07-30T23:59:59.000Z

    Weather for Energy Calculation 2.0 LBNL Lawrence Berkeley National Laboratory LED Light Emitting Diode MBE Mean Bias Error MVR model Multi-Variable Regression models NMBE Normalized Mean Bias Error PCM... heating. Therefore, lighting fixtures and domestic appliances used the most energy in this survey. For lighting fixtures, incandescent and fluorescent lamps are the most popular, only a small number of light-emitting diode (LED) lights were used (Chen...

  8. Rod-to-rod spacing illuminating device

    DOE Patents [OSTI]

    Fodor, G.; Gaal, P.S.

    1984-03-14T23:59:59.000Z

    A system for obtaining an image of an object includes at least one light source having an incandescent filament. An image of the filament is projected onto an object to be observed. Using light reflected from the object, an image of the object is generated. Such a system may employ a television camera to generate the image, and is especially suited for remote observation of objects.

  9. Overview of the Rebuild America Program in Texas 

    E-Print Network [OSTI]

    Saman, N.; Haberl, J. S.; Turner, W. D.

    1998-01-01T23:59:59.000Z

    storage. Medical air scheduling, modify EMS controls. Install EMS systems, DDC EMS conversion, replace EMS. Control room temperature via EMS, repair and reactivate EMS. connect . - HI: Controls I individual rooftop unih, convert HVAC unih to central... . - . , - . . > . . . ballasts, use high eff~cien ballasts and lamps. L4: Exit signs I Replace exit light fixtures, energy elficient exit lights. change exit lights to LZ: Fixture changdreflectors L3: Uoerade photocells. Replaedremove lamps/Fixtures, convert incandescent...

  10. 3Water on Planetary Surfaces Space is very cold!

    E-Print Network [OSTI]

    incandescent bulb consume if left on for 1 hour? Problem 2: A house consumes about 3,000 kilowatts in one hour a battery and absorbed all the energy that fell on it. Ice doesn't really work that way, but let's suppose = 360,000 Joules. Problem 2: A house consumes about 3,000 kilowatts in one hour. How many Joules is this

  11. Development and Construction of Bioclimatic Double Skin Active Facade for Hot and Humid Climate of UAE

    E-Print Network [OSTI]

    Karbor, R. G.; Mohamed, I.

    2010-01-01T23:59:59.000Z

    tracking venetian blinds, LED (light emitting diodes) lighting and Building Management system. 1.01 Modeling And Simulation Of Double Skin Active Facade The modeling and simulation of the Double Skin Fa?ade Cavity is a complicated task, since... sweating/condensation on the water coil. 3.06 LED (Light Emitting Diode) Lighting The building is illuminated using extremely energy efficient LED?s which last 5 times as long as fluorescents and 50 times longer than typical incandescent. So...

  12. Compact range for variable-zone measurements

    DOE Patents [OSTI]

    Burnside, Walter D. (Columbus, OH); Rudduck, Roger C. (Columbus, OH); Yu, Jiunn S. (Albuquerque, NM)

    1988-01-01T23:59:59.000Z

    A compact range for testing antennas or radar targets includes a source for directing energy along a feedline toward a parabolic reflector. The reflected wave is a spherical wave with a radius dependent on the distance of the source from the focal point of the reflector.

  13. The study of the accumulation of hydrocarbons in VLE 196, Block V, Lamar field, Lake Maracaibo, Venezuela

    E-Print Network [OSTI]

    Leveque, Soazig

    2001-01-01T23:59:59.000Z

    ). Faults were picked according to the non-continuity of the seismic reflectors. The fault network is complex and consists of normal, reverse and strike-slip faults. Mapping these reflectors better defined the area of production. The main trap is a positive...

  14. A Fisheye Lens for Many Point PDV

    SciTech Connect (OSTI)

    Frogget, B.

    2011-11-01T23:59:59.000Z

    The features of the fisheye lens are illustrated, including a design with reflector prisms. The fisheye fiber map and the beam footprint are shown. Fisheye rough-angle metrology was done and results presented. Next steps are given, including a smaller top fisheye lens element, longer reflector prisms with better mounting, and different fiber arrangements.

  15. TECHNISCHE MECHANIK, Band ??, Heft ?, (2004), ?? ?? Manuskripteingang: 4 April 2004

    E-Print Network [OSTI]

    Pellegrino, Sergio

    Packaging of Thin Shell Slit Reflectors B. Tibbalds, S.D. Guest and S. Pellegrino Carbon-fibre-reinforced are expensive, complex, and heavy. A mould-breaking innovation was the development of carbon-fibre-reinforced presents a new concept for packaging reflectors of this type. The idea is to cut the surface into 6

  16. Thermal neutron detection system

    DOE Patents [OSTI]

    Peurrung, Anthony J. (Richland, WA); Stromswold, David C. (West Richland, WA)

    2000-01-01T23:59:59.000Z

    According to the present invention, a system for measuring a thermal neutron emission from a neutron source, has a reflector/moderator proximate the neutron source that reflects and moderates neutrons from the neutron source. The reflector/moderator further directs thermal neutrons toward an unmoderated thermal neutron detector.

  17. Environmental and health aspects of lighting: Mercury

    SciTech Connect (OSTI)

    Clear, R.; Berman, S.

    1993-07-01T23:59:59.000Z

    Most discharge lamps, including fluorescent lamps, metal halide lamps, and high pressure sodium lamps, contain Mercury, a toxic chemical. Lighting professionals need to be able to respond to questions about the direct hazards of Mercury from accidentally breaking lamps, and the potential environmental hazards of lamp operation and disposal. We calculated the exposures that could occur from an accidental breakage of lamps. Acute poisoning appears almost impossible. Under some circumstances a sealed environment, such as a space station, could be contaminated enough to make it unhealthy for long-term occupation. Mercury becomes a potential environmental hazard after it becomes methylated. Mercury is methylated in aquatic environments, where it may accumulate in fish, eventually rendering them toxic to people and other animals. Lighting causes Mercury to enter the environment directly from lamp disposal, and indirectly from power plant emissions. The environmental tradeoffs between incandescent and discharge lamps depend upon the amounts released by these two sources, their local concentrations, and their probabilities of being methylated. Indirect environmental effects of lighting also include the release of other heavy metals (Cadmium, Lead and Arsenic), and other air pollutants and carbon dioxide that are emitted by fossil fuel power plants. For a given light output, the level of power plant emissions depends upon the efficacy of the light source, and is thus much larger for incandescent lamps than for fluorescent or discharge lamps. As disposal and control technologies change the relative direct and indirect emissions from discharge and incandescent lamps will change.

  18. Method and apparatus for mounting a dichroic mirror in a microwave powered lamp assembly using deformable tabs

    DOE Patents [OSTI]

    Ury, M.; Sowers, F.; Harper, C.; Love, W.

    1998-11-24T23:59:59.000Z

    A microwave powered electrodeless lamp includes an improved screen unit having mesh and solid sections with an internal reflector secured at the juncture of the two sections to reflect light into a light-transmitting chamber defined in the lamp microwave cavity by the reflector and the mesh section. A discharge envelope of a bulb is disposed in the light-transmitting chamber. Light emitted from the envelope is prevented by the reflector from entering the cavity portion bounded by the solid section of the screen. The reflector is mounted in the cavity by tabs formed in the screen unit and bendable into the cavity to define support planes abutting respective surfaces of the reflector. The mesh section and tabs are preferably formed by etching a thin metal sheet. 7 figs.

  19. Method and apparatus for mounting a dichroic mirror in a microwave powered lamp assembly using deformable tabs

    DOE Patents [OSTI]

    Ury, Michael (Bethesda, MD); Sowers, Frank (Frederick, MD); Harper, Curt (Wheaton, MD); Love, Wayne (Olney, MD)

    1998-01-01T23:59:59.000Z

    A microwave powered electrodeless lamp includes an improved screen unit having mesh and solid sections with an internal reflector secured at the juncture of the two sections to reflect light into a light-transmitting chamber defined in the lamp microwave cavity by the reflector and the mesh section. A discharge envelope of a bulb is disposed in the light-transmitting chamber. Light emitted from the envelope is prevented by the reflector from entering the cavity portion bounded by the solid section of the screen. The reflector is mounted in the cavity by tabs formed in the screen unit and bendable into the cavity to define support planes abutting respective surfaces of the reflector. The mesh section and tabs are preferably formed by etching a thin metal sheet.

  20. aluminum-induced crystallization comparison: Topics by E-print...

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

    of charges on the particles is studied. S. Kondrat; M. Bier; L. Harnau 2010-04-15 413 Giant Lamb Shift in Photonic Crystals Quantum Physics (arXiv) Summary: We obtain a general...

  1. USF System Facts 2010/11 USF System

    E-Print Network [OSTI]

    Meyers, Steven D.

    . Margarita R. Cancio, M.D. W. Gene Engle Cesar R. Hernandez Brian D. Lamb Elizabeth Larkin Rhea F. Law Debbie Chancellor, USF St. Petersburg Arthur Guilford Regional Chancellor, USF Sarasota-Manatee Marshall Goodman

  2. Original article Influence of experimental acidosis on the concentrations

    E-Print Network [OSTI]

    Boyer, Edmond

    on neonatal thyroid function were studied by infusing HCI for 4 h in 42 to 54-h-old lambs. Animals of the same age, used as controls, were simultaneously infused with physiological saline. HCI infusion induced

  3. Mathematical Modeling of Semiconductor Devices

    E-Print Network [OSTI]

    Jüngel, Ansgar

    fibers. · Optoelectronic emitters convert an electronic signal into light. Examples are light-emitting diodes (LED) used in displays and indication lambs and semiconductor lasers used in compact disk systems

  4. 1 Copyright 2009 by ASME Proceedings of the ASME 2009 International Mechanical Engineering Congress

    E-Print Network [OSTI]

    Giurgiutiu, Victor

    Lamb wave complemented with the electro- mechanical impedance measurement to detect, quantify is to develop in-situ multi- mode sensing system for the monitoring and prediction of critical aerospace

  5. Percutaneous aortic valve replacement in a re-animated postmortem heart

    E-Print Network [OSTI]

    White, Jennifer; Sun, Amy; Killien, Lauren; Evangelista, Dennis

    2006-01-01T23:59:59.000Z

    transcatheter implantation of heart valve prosthesis for thein apex of post-mortem heart (lower view). B C A Figure 5A.descending aorta in lambs. Eur Heart J. 2002;23:1045-49. 5.

  6. Econometric model of the U.S. sheep and mohair industries for policy analysis 

    E-Print Network [OSTI]

    Ribera Landivar, Luis Alejandro

    2005-08-29T23:59:59.000Z

    The U.S. sheep industry has been declining in size for many years. Many factors have contributed to the decline of the sheep industry including declining consumption of lamb and mutton, the growth in manmade fiber use, ...

  7. Selenium an Essential Micronutrient. Max Irsik DVM, MAB

    E-Print Network [OSTI]

    Watson, Craig A.

    of agricultural drainage water with sewage sludge or industrial activities such as fly ash from coal plants, oil with muscle lesions observed in lambs and calves at birth. This congenital type of white muscle disease may

  8. was partially replaced by dry peas or urea, the latter not exceeding 1.5 % of the concentrate in any case;

    E-Print Network [OSTI]

    Boyer, Edmond

    pelleted lucerne hay, the urinary and faecal excre- tion of calcium was significantly higher than in control lambs fed normal lucerne hay (Table II). The causes for these differences are still unknown

  9. www.ext.vt.edu Produced by Communications and Marketing, College of Agriculture and Life Sciences,

    E-Print Network [OSTI]

    Liskiewicz, Maciej

    contagious disease and is contagious to humans. Transmission Club lamb fungus is caused by a fungus in diam- eter. Sheep are contagious at all stages of the disease. It is much easier to identify lesions

  10. Examining the Economic Implications and Considerations for Continued Involvement in the Conservation Reserve Program in Texas 

    E-Print Network [OSTI]

    Schuchard, Laura Mae

    2012-10-19T23:59:59.000Z

    of CRP enrollment, which include Gaines, Deaf Smith, Lamb, Hale, Floyd, Dallam, Hockley, Terry, Castro, and Swisher Counties. The primary objective was to provide landowners in these counties with a comprehensive list of options available after CRP...

  11. About Me

    E-Print Network [OSTI]

    CDF

    I don't eat meat such as beef, chicken, pork, lamb, etc. ... was not so determined not to eat meat - a kind of food said to provide energy or some ingredients for life

  12. Influence of supplemental monensin on gestating and lactating ewes 

    E-Print Network [OSTI]

    Peel, Richard Kraig

    1997-01-01T23:59:59.000Z

    Twenty-five multiparous Rambouillet ewes were used to determine the effects of feeding monensin during late gestation and early lactation on prepartum and postpartum ewe body weight, milk production, blood glucose levels, and lamb production. Ewes...

  13. Collaborative Systems Thinking Research: Exploring systems thinking within teams

    E-Print Network [OSTI]

    de Weck, Olivier L.

    Collaborative Systems Thinking Research: Exploring systems thinking within teams Caroline T. Lamb research that seeks to develop an empirical basis for collaborative systems thinking, defined as "an of thinking styles, design processes, tools, and communication media to consider system attributes

  14. For Immediate Release --Friday, July 11, 2014 Potato Growers of Alberta and industry partners to

    E-Print Network [OSTI]

    Morris, Joy

    For Immediate Release -- Friday, July 11, 2014 Potato Growers Research capacity in Alberta's potato industry will be significantly enhanced due years from the Potato Growers of Alberta (PGA), McCain Foods, ConAgra Lamb

  15. 4. P1,P2 (P1), (P2) () SUSY()?

    E-Print Network [OSTI]

    P1, P2 1. 2. P1 3. P2 4. P1,P2 (P1), (P2) 11 #12; () =SUSY = () SUSY()? CP CP ...... LHC-ATLASK 22002 2008 #12;P1: I + () Maxwell () (2kV) #12;( · ­ #12;5 2009Lamb shift ­ QEDloop-) ­ 0 Lamb shift Dirac 212p s1 212s QED 232p 212p s1 212s 232p #12; RF H2

  16. Supplement 20, Part 6, Parasite-Subject Catalogue: Subject Headings And Treatment

    E-Print Network [OSTI]

    Edwards, Shirley J.; Shaw, Judith H.; Rayburn, Jane D.; Hood, Martha W.

    1975-01-01T23:59:59.000Z

    , chicks Age of host Fayer, R.; and Kocan, R. ?., Sarcocystis sp., grackles, 1971 a prevalence Maryland Age of host de Fel?cio, P. E.; Barros, pasture contamination, P. S. M.; Gomes, W. R.; and nematodes of naturally Gebram, S., 1972 a infested sheep... obvelata diagno- P. C., 1966 a sis Age of host Gemmell, ?. ?., 1972 a Taenia hydatigena, lambs, resistance to superinfection, heavily contaminated pastures Age of host Gemmell, ?.?., 1972 b lambs, Taenia hydatigena, active immunization Age of host...

  17. Situational correlates of disclosure of child sexual abuse

    E-Print Network [OSTI]

    Wiley, Elizabeth Stirling

    2005-02-17T23:59:59.000Z

    , there is general agreement that parents, usually the mother, are most likely to receive the child?s disclosure (Berliner & Conte, 1995; Fontanella, Harrington, & Zuravin, 2000; Gordon, 1990; Lamb & Edgar-Smith, 1994; Sauzier, 1989; Sinclair & Gold, 1997... experienced more than one assault during childhood. Lamb and Edgar-Smith (1994) found that over half of the women in their study were abused weekly in childhood. However, Gordon (1990) reports that most child victims experience only an isolated incident...

  18. Stratigraphic significance of uvigerinid foraminifers in the Western Hemisphere

    E-Print Network [OSTI]

    Lamb, J. L.; Miller, T. H.

    1984-12-18T23:59:59.000Z

    of Venezuela, coastal Colombia, Tampico embayment of Mexico, Gulf Coast region, and northeastern Pacific region. Lamb (1964) and Lamb and Hickernell (1972) used platy-costate species (e.g., Uvigerina jacksonensis, U. tumeyensis, Tiptonina nodifera... members, affords paleobathymetric cri- teria at least as far back as the Middle Eocene, for we have provisionally placed small spinose-costate species in the Middle Eocene Guayabal Formation of Mexico in U. peregrina; records show it to be a cosmopolitan...

  19. Nutritional analysis of meats from selected wild game and domestic animals 

    E-Print Network [OSTI]

    Moczygemba, Daniel Ray

    1991-01-01T23:59:59.000Z

    steaks, vacuum packaged and frozen at -20 C until chemical analysis could be performed. iv Steaks from lamb were higher in total fat, cholesterol, and caloric content than other species tested. Raw steaks from fallow, blackbuck, and white-tailed deer...) (116. 3 mg/100 g) . No significant differences in caloric content of raw longissimus steaks were found between species (Table 1). Raw semimembranosus steaks from fallow, sika, white-tailed deer, and lamb were significantly lower in moisture than...

  20. Abstract--To study the lung water clearance in vivo at the time of the birth, MR experiments were conducted on newborn lamb immediately after uterine incision deliverance. Images obtained with a fast spin echo sequence enable to quantify lung liquid each

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Abstract-- To study the lung water clearance in vivo at the time of the birth, MR experiments were echo sequence enable to quantify lung liquid each 5 minutes during 30 minutes then each 10 minutes for 1.5 hour. From the lung contours, pulmonary volume, pulmonary water, and spatial gradient

  1. Technical and cost potential for lightweight, stretched-membrane heliostat technology

    SciTech Connect (OSTI)

    Murphy, L.M.

    1984-01-01T23:59:59.000Z

    This paper presents the background and rationale and describes the development effort of a potentially low-cost, concentrating reflector design. The proposed reflector design is called the stretched-membrane concept. In this concept a reflector film - which can be metal, polymeric, or of a composite construction - is stretched on a hollow torroidal frame that offers a structurally efficient and optically accurate surface. Although the intent is to improve heliostat concentrator cost and performance for solar thermal applications, the collector design approach proposed here may well offer effective cost and performance opportunities for improving photovoltaic and solar daylighting applications as well. Some of the major advantages include a reflector, a support frame, and support structures that can be made extremely lightweight and low in cost because of the effective use of material with high average stress levels in the reflector and support frame; a 75% reduction in the weight of the reflector and support structure (down to the drive attachment) over the second-generation glass-and-metal heliostat concept; a better than 50% cost reduction for the reflector assembly and support structure compared to corresponding elements of the second-generation concept; and, finally, optical accuracies and an annual energy delivery potential close to those attainable with current glass-and-metal heliostats. In this paper results of initial design studies, performance predictions, and analysis are presented, as well as results corresponding to subscale testing. Also included are recommendations for further development and for resolving remaining issues.

  2. ENERGY & ENVIRONMENT DIVISION ANNUAL REPORT 1979

    E-Print Network [OSTI]

    Cairns, E.J.

    2010-01-01T23:59:59.000Z

    Its Applica- tion to Photovoltaic Efficiency Calculations,"conver- sion efficiency of amorphous photovoltaic devices,efficiency using reflectors for both short-term and long-term storage, and cogenerating photovoltaic

  3. DESIGN OF A REAL-TIME DIGITAL SIGNAL PROCESSING AUDIO PROCESSING TECHNIQUE

    E-Print Network [OSTI]

    Jagielski, Christopher

    2012-04-24T23:59:59.000Z

    (Unpublished work style),? unpublished. E. H. Miller, ?A note on reflector arrays (Periodical style?Accepted for publication),? IEEE Trans. Antennas Propagat., to be published. J. Wang, ?Fundamentals of erbium-doped fiber amplifiers arrays (Periodical style...

  4. Large Area Vacuum Deposited Coatings

    SciTech Connect (OSTI)

    Martin, Peter M.

    2003-04-30T23:59:59.000Z

    It's easy to make the myriad of types of large area and decorative coatings for granted. We probably don't even think about most of them; the low-e and heat mirror coatings on our windows and car windows, the mirrors in displays, antireflection coatings on windows and displays, protective coatings on aircraft windows, heater coatings on windshields and aircraft windows, solar reflectors, thin film solar cells, telescope mirrors, Hubble mirrors, transparent conductive coatings, and the list goes on. All these products require large deposition systems and chambers. Also, don't forget that large batches of small substrates or parts are coated in large chambers. In order to be cost effective hundreds of ophthalmic lenses, automobile reflectors, display screens, lamp reflectors, cell phone windows, laser reflectors, DWDM filters, are coated in batches.

  5. Acoustic characteristics of bay bottom sediments in Lavaca Bay, TX

    E-Print Network [OSTI]

    Patch, Mary Catherine

    2005-08-29T23:59:59.000Z

    acoustic return of the bay bottom, and 2) strong, shallow reflectors??surface strong, mounds, buried strong, andburied multiples, which describe strong acoustic returns in the upper 5 m of stratigraphy. Within the lower package, four categories were...

  6. Monolithically integrated InP-based tunable wavelength conversion John M. Hutchinson*1

    E-Print Network [OSTI]

    Coldren, Larry A.

    The simplest photocurrent-driven wavelength converter (PD-WC) consists of a photodiode receiver directly such as implemented in the sampled-gating distributed Bragg reflector (SGDBR) laser [10]. A separate DC electrode

  7. Putting Concepts to Work: Some Thoughts for the 21st Century (a reply to Fodor) 

    E-Print Network [OSTI]

    Clark, Andy; Prinz, Jesse

    2004-01-01T23:59:59.000Z

    Fodor’s theory makes thinking prior to doing. It allows for an inactive agent or pure reflector, and for agents whose actions in various ways seem to float free of their own conceptual repertoires. We show that naturally ...

  8. SustainabilityCouncil MinutesandIAPProgress Nov6,2013 P.1 The University of Winnipeg

    E-Print Network [OSTI]

    Martin, Jeff

    efficiency boilers (hot water for kitchens) reflector project ­ decided not to proceed, hope to relocate ­ completed in-house boiler ­ off-seasonal steam boiler was hogging natural gas, replaced and using high

  9. Self-referencing remote optical probe

    DOE Patents [OSTI]

    O'Rourke, P.E.; Prather, W.S.; Livingston, R.R.

    1991-08-13T23:59:59.000Z

    A probe is described for remote spectrometric measurements of fluid samples having a hollow probe body with a sliding reflective plug therein and a lens at one end, ports for admitting and expelling the fluid sample and a means for moving the reflector so that reference measurement can be made with the reflector in a first position near the lens and a sample measurement can be made with the reflector away from the lens and the fluid sample between the reflector and the lens. Comparison of the two measurements will yield the composition of the fluid sample. The probe is preferably used for remote measurements and light is carried to and from the probe via fiber optic cables. 3 figures.

  10. Solar energy generation in three dimensions

    E-Print Network [OSTI]

    Bernardi, Marco

    We formulate, solve computationally and study experimentally the problem of collecting solar energy in three dimensions. We demonstrate that absorbers and reflectors can be combined in the absence of sun tracking to build ...

  11. Wideband Reflectarray Using Compact Coupled Element and Rectifying Antenna Combined with Reflectarray

    E-Print Network [OSTI]

    Oh, Seong Won

    2012-10-19T23:59:59.000Z

    The reflectarray has been considered as a suitable candidate to replace the conventional parabolic reflectors because of its high-gain, low profile, and beam reconfiguration capability. Narrow bandwidth of the reflectarray is the main obstacle...

  12. A Linear Parabolic Trough Solar Collector Performance Model

    E-Print Network [OSTI]

    Qu, M.; Archer, D.; Masson, S.

    2006-01-01T23:59:59.000Z

    A performance model has been programmed for solar thermal collector based on a linear, tracking parabolic trough reflector focused on a surface-treated metallic pipe receiver enclosed in an evacuated transparent tube: a Parabolic Trough Solar...

  13. Alternative Energy Technologies Solar Power

    E-Print Network [OSTI]

    Scott, Christopher

    #12;Alternative Energy Technologies Solar Power Photovoltaics Concentrating Solar Power (CSP) Power;Concentrating Solar Power (CSP) Reflector material is Aluminum or Silver Tube material ..... Several possible ............... Mexico, Canada, Peru Alumina ............Guinea, Brazil, Australia, Jamaica Manganese ....... S. Africa

  14. Laser with dynamic holographic intracavity distortion correction capability

    SciTech Connect (OSTI)

    Cronin-Golomb, M.; Fischer, B.; Nilsen, J.; White, J.O.; Yariv, A.

    1982-08-01T23:59:59.000Z

    We report here a novel laser resonator with the ability to correct for intracavity phase distortions. The optical cavity employs a passive (self-pumped) phase conjugate reflector to provide this capability.

  15. Reference: Biol. Bull. 179: 332-339. (December, 1990) The Anatomy and Morphology of the Adult Bacterial

    E-Print Network [OSTI]

    McFall-Ngai, Margaret

    lens and thick reflector that appear to permit the squid to control the quality of bacterial light in the sand during the day and forages at night over shallow-water sand flats. E. scolopes shares

  16. Wind Tunnel Tests of Parabolic Trough Solar Collectors: March 2001--August 2003

    SciTech Connect (OSTI)

    Hosoya, N.; Peterka, J. A.; Gee, R. C.; Kearney, D.

    2008-05-01T23:59:59.000Z

    Conducted extensive wind-tunnel tests on parabolic trough solar collectors to determine practical wind loads applicable to structural design for stress and deformation, and local component design for concentrator reflectors.

  17. Light trapping in thin film solar cells using textured photonic crystal

    DOE Patents [OSTI]

    Yi, Yasha (Somerville, MA); Kimerling, Lionel C. (Concord, MA); Duan, Xiaoman (Amesbury, MA); Zeng, Lirong (Cambridge, MA)

    2009-01-27T23:59:59.000Z

    A solar cell includes a photoactive region that receives light. A photonic crystal is coupled to the photoactive region, wherein the photonic crystal comprises a distributed Bragg reflector (DBR) for trapping the light.

  18. Alternative Energy Development and China's Energy Future

    E-Print Network [OSTI]

    Zheng, Nina

    2012-01-01T23:59:59.000Z

    dish stirling technology with a parabolic reflector, China has only recently started exploring small-scale solardish/stirling engines and line- focusing Fresnel reflect systems (Wang, 2010). 2.5 Remaining Challenges to Solar

  19. Submarine mass movement processes on the North Sea Fan as interpreted from the 3D seismic data 

    E-Print Network [OSTI]

    Gafeira Gonçalves, Joana

    2010-01-01T23:59:59.000Z

    allowed a detailed geomorpholocial analysis of these deposits, This study involved the interpretation of the seismic data and the detailed pickling of key reflectors followed by tge extraction of both horizon and window-based seismic attributes. Digital...

  20. N d'ordre : 4079 ANNE 2009 THSE/UNIVERSITDERENNES1

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    unfocussed radar echoes and that gridded corner reflectors may serve as radiometric calibrators of dual . . . . . . . . . . . . . . . . . . . . . . . . 1 1.2 SAR remote sensing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 1.2.1 SAR polarimetry . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 1.2.2 SAR interferometry