National Library of Energy BETA

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

    2014-09-02

    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. Incandescent Lighting | Department of Energy

    Office of Environmental Management (EM)

    courtesy of iStockphotoTokenPhoto. Incandescent lamps are often considered the least energy efficient type of electric lighting commonly found in residential buildings....

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

    Office of Environmental Management (EM)

    Energy-Efficient Light Bulbs Compare with Traditional Incandescents How Energy-Efficient Light Bulbs Compare with Traditional Incandescents November 5, 2014 - 11:39pm Addthis By...

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

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

    you can save 75 each year. Compared to traditional incandescents, energy-efficient lightbulbs such as halogen incandescents, compact fluorescent lamps (CFLs), and light emitting...

  6. Replacing Incandescent Lightbulbs and Ballasts | Department of...

    Energy Savers [EERE]

    (R)or parabolic reflector (PAR) CFLs for flood and spotlighting. Some CFL fixtures have built-in electronic ballasts and polished metal reflectors. When used in recessed...

  7. Dual LED/incandescent security fixture

    DOE Patents [OSTI]

    Gauna, Kevin Wayne

    2005-06-21

    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.

  8. Nuclear reactor reflector

    DOE Patents [OSTI]

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

    1994-01-01

    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.

    1994-06-07

    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. Fattening Lambs 

    E-Print Network [OSTI]

    Jones, J. M. (John McKinley)

    1916-01-01

    by the Experiment Station. OBJECT. The object of this test was to compare the value of silage, constitut- ing the sole source of a roughage supply in the ration of fattening lambs, with a supply of silage supplemented by cotton seed hulls. Each lot... was to receive concentrates in the form of cotton seed meal at the outset, this to be supplemented with milo and feterita chops at such periods as might be deemed advisable. Many feeders do not consider silage as being desirable in the ration of the fattening...

  11. 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...

  12. ECE 466: LED Lighting Systems -Incandescent lightings rise and

    E-Print Network [OSTI]

    Connors, Daniel A.

    ECE 466: LED Lighting Systems - Incandescent lightings rise and demise via government policy - Alternative Fluorescent light sources and compact fluorescent lights (CFL) to incandescents - Alternative LED light sources - Color index as well as Watts to Lumens efficiency available from all three light sources

  13. 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.

  14. Advanced Manufacture of Reflectors

    SciTech Connect (OSTI)

    Angel, Roger

    2014-12-17

    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. 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)

    2001-01-01

    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.

  16. Reflector system for a lighting fixture

    DOE Patents [OSTI]

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

    1998-09-08

    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.

  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)

    1998-01-01

    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. CALiPER Benchmark Report: Performance of Incandescent A Type and Decorative Lamps and LED Replacements

    SciTech Connect (OSTI)

    None

    2008-11-01

    This benchmark report addresses common omnidirectional incandescent lamps - A-type and small decorative, candelabra-type lamps - and their commercially available light-emitting diode (LED) replacements.

  19. Lamp bulb with integral reflector

    DOE Patents [OSTI]

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

    2001-01-01

    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.

    2005-01-01

    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

    2013-10-15

    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. Distributed Bragg Reflectors With Reduced Optical Absorption

    DOE Patents [OSTI]

    Klem, John F. (Albuquerque, NM)

    2005-08-16

    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.

  3. Solar central receiver heliostat reflector assembly

    DOE Patents [OSTI]

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

    1980-01-01

    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.

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

    E-Print Network [OSTI]

    Short, Daniel

    Potential Environmental Impacts from the Metals in Incandescent, Compact Fluorescent Lamp (CFL, previous studies have investigated various environmental impacts from incandescent, CFL, and LED bulbs. There is uncertainty about the potential environmental impacts of these components and whether special provisions must

  5. 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

    2012-01-01

    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).

  6. 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)

    1994-01-01

    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.

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

    E-Print Network [OSTI]

    MODELLING OF CAVITY RECEIVER HEAT TRANSFER FOR THE COMPACT LINEAR FRESNEL REFLECTOR John D Pye receiver for the Compact Linear Fresnel Reflector is presented. Response to changes in ambient temperature equations are provided. 1. BACKGROUND The Compact Linear Fresnel Reflector (CLFR), shown in Figure 1

  8. 4-H Show Lamb Guide 

    E-Print Network [OSTI]

    Craddock, Frank; Stultz, Ross

    1998-11-30

    breed characteristics 1. Solid white color on muzzle 2. Dark chocolate color on muzzle 3. Coarse, chalky hair around eyes extending to and including the muzzle 4. Predominately pink nose with few black spots 5. Long, narrow nose 6. Coloration on ears 7... sheep. Lambs that experience abrupt changes to their feeding schedules or that consume large amounts of grain are subject to entero- toxemia. These changes cause the clostridial organism to grow rapidly and produce a powerful toxin that causes death in a...

  9. Contour mode resonators with acoustic reflectors

    DOE Patents [OSTI]

    Olsson, Roy H. (Albuquerque, NM); Fleming, James G. (Albuquerque, NM); Tuck, Melanie R. (Albuquerque, NM)

    2008-06-10

    A microelectromechanical (MEM) resonator is disclosed which has a linear or ring-shaped acoustic resonator suspended above a substrate by an acoustic reflector. The acoustic resonator can be formed with a piezoelectric material (e.g. aluminum nitride, zinc oxide or PZT), or using an electrostatically-actuated material. The acoustic reflector (also termed an acoustic mirror) uses alternating sections of a relatively low acoustic impedance Z.sub.L material and a relatively high acoustic impedance Z.sub.H material to isolate the acoustic resonator from the substrate. The MEM resonator, which can be formed on a silicon substrate with conventional CMOS circuitry, has applications for forming oscillators, rf filters, and acoustic sensors.

  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.

    2008-10-07

    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. Effect of Fatness on Tenderness of Lamb

    E-Print Network [OSTI]

    Cover, Sylvia

    1944-01-01

    A. B. CONNER, DIRECTOR i Collegz Station, Texas I / BULLETIN NO. 661 OCTOBER 1944 I 1 I I EFFECTS OF FATNESS ON TENDERNESS I OF LAMB SYLVIA COVER, A. K. MACKEY, C. E. MURPHEY, T C. MILLER, H. T. BASS, C. L. BELL, AND . CARL HAMALAINEN... ................................ Summary and Conclusions ....................................... Literature Cited ................................................ EFFECT OF FATNESS ON TENDERNESS OF LAMB Sylvia Coverl, A. K. Mackey', C. E. Murphey3, J. C. Millera, H. T. Bass5, C. L. Be...

  12. Recovery Act: Low-Cost, Highly Lambertian Reflector Composite...

    Office of Scientific and Technical Information (OSTI)

    Reflector Composite For Improved LED Fixture Efficiency and Lifetime Teather, Eric 32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION; 36 MATERIALS SCIENCE The overall...

  13. Project Profile: Advanced Polymeric Reflector for CSP Applications...

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

    48-inch wide roll coater. This technology is promising both for its potential lower cost to traditional reflectors, but also because the design flexibility and durability...

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

    SciTech Connect (OSTI)

    Ilas, Dan

    2013-10-01

    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.

  15. Method of making reflecting film reflector

    DOE Patents [OSTI]

    Cottingham, James G. (Center Moriches, NY)

    1980-01-01

    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.

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

    SciTech Connect (OSTI)

    Kennedy, C. E.; Terwilliger, K.

    2007-01-01

    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.

  17. An Optical Reflector for the CANGAROO-II Telescope

    E-Print Network [OSTI]

    Kawachi, A; Dazeley, S A; Edwards, P G; Gunji, S; Hara, S; Hara, T; Jinbo, J; Kifune, T; Kubo, H; Matsubara, Y; Mizumoto, Y; Mori, M; Moriya, M; Muraishi, H; Muraki, Y; Naito, T; Nishijima, K; Patterson, J R; Roberts, M D; Rowell, G P; Sako, T; Sakurazawa, K; Sato, Y; Susukita, R; Tamura, T; Tanimori, T; Yanagita, S; Yoshida, T; Yoshikoshi, T; Yuki, A; Kawachi, Akiko

    1999-01-01

    We have been successful in developing light and durable mirrors made of CFRP (Carbon Fiber Reinforced Plastic) laminates for the reflector of the new CANGAROO-II 7 m telescope. The reflector has a parabolic shape (F/1.1) with a 30 m^2 effective area which consists of 60 small spherical mirrors of CFRP laminates. The orientation of each mirror can be remotely adjusted by stepping motors. After the first adjustment work, the reflector offers a point image of about $0.^\\circ 14$ (FWHM) on the optic axis.

  18. An Optical Reflector for the CANGAROO-II Telescope

    E-Print Network [OSTI]

    Akiko Kawachi; J. Kushida; S. A. Dazeley; S. A. Dazeley; P. G. Edwards; S. Gunji; S. Hara; T. Hara; J. Jinbo; T. Kifune; H. Kubo; Y. Matsubara; Y. Mizumoto; M. Mori; M. Moriya; H. Muraishi; Y. Muraki; T. Naito; K. Nishijima; J. R. Patterson; M. D. Roberts; G. P. Rowell; T. Sako; K. Sakurazawa; Y. Sato; R. Susukita; T. Tamura; T. Tanimori; S. Yanagita; T. Yoshida; T. Yoshikoshi; A. Yuki

    1999-06-04

    We have been successful in developing light and durable mirrors made of CFRP (Carbon Fiber Reinforced Plastic) laminates for the reflector of the new CANGAROO-II 7 m telescope. The reflector has a parabolic shape (F/1.1) with a 30 m^2 effective area which consists of 60 small spherical mirrors of CFRP laminates. The orientation of each mirror can be remotely adjusted by stepping motors. After the first adjustment work, the reflector offers a point image of about $0.^\\circ 14$ (FWHM) on the optic axis.

  19. 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

  20. Promising Technology: Parabolic Aluminized Reflector Light-Emitting Diodes

    Broader source: Energy.gov [DOE]

    Parabolic aluminized reflectors, or PARs, are directional lamps typically used in recessed lighting. In contrast to CFLs, LEDs offer additional advantages including no warm up time, improved dimming and control capabilities, and for some products much greater efficacy ratings.

  1. The Effect of Reflectors and Delamping Upon Light Levels 

    E-Print Network [OSTI]

    Pashkevich, P. A.

    1989-01-01

    In the 1987 Georgia Institutional Conservation Program ICP), recommendations for installation of reflectors in fluorescent fixtures accompanied by delamping totaled $5.4 million. Concerned with that effects of these recommendations on light levels...

  2. Neutronic evaluation of GCFR core diluents and reflectors

    E-Print Network [OSTI]

    Yu, Kun, 1974-

    2003-01-01

    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 ...

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

    DOE Patents [OSTI]

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

    2014-11-25

    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.

  4. 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)

    2013-07-01

    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)

  5. 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)

    2014-09-15

    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.

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

    E-Print Network [OSTI]

    Maddock, Travis David

    2001-01-01

    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...

  7. An Optical Reflector System for the CANGAROO-II Telescope

    E-Print Network [OSTI]

    Akiko Kawachi

    1999-11-30

    We have developed light and durable mirrors made of CFRP (Carbon Fiber Reinforced Plastics) laminates for the reflector of the new CANGAROO-II 7 m telescope. The reflector has a parabolic shape (F/1.1) with a 30 m^2 effective area which consists of 60 small spherical mirrors. The attitude of each mirror can be remotely adjusted by stepping motors. After the first adjustment work, the re ector offers a point image of about 0.14 degree (FWHM) on the optic axis. The telescope has been in operation since May 1999 with an energy threshold of ~ 300 GeV.

  8. An Optical Reflector System for the CANGAROO-II Telescope

    E-Print Network [OSTI]

    Kawachi, A

    1999-01-01

    We have developed light and durable mirrors made of CFRP (Carbon Fiber Reinforced Plastics) laminates for the reflector of the new CANGAROO-II 7 m telescope. The reflector has a parabolic shape (F/1.1) with a 30 m^2 effective area which consists of 60 small spherical mirrors. The attitude of each mirror can be remotely adjusted by stepping motors. After the first adjustment work, the re ector offers a point image of about 0.14 degree (FWHM) on the optic axis. The telescope has been in operation since May 1999 with an energy threshold of ~ 300 GeV.

  9. A Low-Power System Design for Lamb Wave Methods Shaver Deyerlea

    E-Print Network [OSTI]

    Ha, Dong S.

    A Low-Power System Design for Lamb Wave Methods Shaver Deyerlea , Dong Sam Haa , and Daniel J significantly reduce the overall power dissipation of a Lamb wave system. In this paper, we propose a method damage on aluminum plates. Keywords: Low power SHM system, Low power Lamb wave system, Lamb Wave, Analog

  10. 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

  11. 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.

    1994-03-29

    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.

  12. 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

  13. Long-Life Self-Renewing Solar Reflector Stack

    DOE Patents [OSTI]

    Butler, Barry Lynn (Solana Beach, CA)

    1997-07-08

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

  14. Step-Stress Accelerated Degradation Testing for Solar Reflectors: Preprint

    SciTech Connect (OSTI)

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

    2011-09-01

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

  15. 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

    2010-01-01

    Lamps in Texas Description Value Reference Total Housing Units in Texas in 2013: 10,204,056 Real Estate Center, Texas A&M University3, U.S. Census Bureau4 5 Average Lighting Electricity Usage per House: 1,946 kWh/yr NREL Building America Program6... % of Lamps That can be Retrofitted with a CFL: 70% NREL Building America Program6 and ESL Assumption % of Savings From Replacing Incandescent to CFL Lamps: 75% ESL Assumption CFL Lighting Electricity Savings per House: 1,022 kWh/yr Total Annual CFL...

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

    E-Print Network [OSTI]

    Tschirhart, Tara Elizabeth

    2004-09-30

    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, water-holding capacity...

  17. Finite element study of Lamb waves: modeling techniques and applications 

    E-Print Network [OSTI]

    Verdict, Gregory Scott

    1993-01-01

    and theoretical results. In addition, other finite element work shows the viability of using these modeling techniques as a tool for understanding the interaction of Lamb waves with physical defects. As a signal processing tool, neural networks will process...

  18. Cube-corner reflectors with interference dielectric coating

    SciTech Connect (OSTI)

    Sokolov, A L; Murashkin, V V; Akent'ev, A S; Karaseva, E A

    2013-09-30

    The cube-corner reflectors (CCRs) with a special interference dielectric coating intended for ring retroreflector systems of space vehicles with uniaxial orientation are considered. The diffraction patterns of radiation reflected from the CCRs with different face coatings are studied. It is shown that the choice of the angle between the faces, the size and the coating of CCR faces allow essential variation in the diffraction pattern, thereby providing its optimisation for solving different navigation problems. (nanogradient dielectric coatings and metamaterials)

  19. Mineral status, bone characterisitics, carcass characteristics, and performance of feedlot lambs implanted with zeranol 

    E-Print Network [OSTI]

    Niemann, Dawn Renee

    1998-01-01

    Fifty-four Rambouillet (avg wt, 34.6 kg) wether lambs were used to determine the effects of zeranol of p and N excretion, animal performance, carcass characteristics, and bone characteristics. Lambs were blocked by sire, ...

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

    E-Print Network [OSTI]

    Krawczel, Peter Downs

    2007-04-25

    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 ...

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

    E-Print Network [OSTI]

    Thayne, Jeffrey Thomas

    2009-05-15

    The objective of this study was to evaluate the effects of inclusion of Bio-Mos in the growing ration for weaned lambs on growth rate, feed efficiency, and clinical measures of health of the lambs. Mannan oligosaccharides ...

  2. 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

  3. Modal analysis of Lamb wave generation in elastic plates by liquid wedge transducers

    E-Print Network [OSTI]

    Paris 7 - Denis Diderot, Université

    Modal analysis of Lamb wave generation in elastic plates by liquid wedge transducers X. Jia Groupe by a variety of methods. For signal processing applications, Lamb waves are generated by using interdigital is presented to describe the excitation of Lamb waves in an elastic plate using a liquid wedge transducer

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

    E-Print Network [OSTI]

    Ramirez, Adrian Joe

    1998-01-01

    from freshly slaughtered lamb carcasses were inoculated with a lamb fecal paste. Lamb breasts then were cleaned with a water rinse for 90 sec followed by sanitizing with either a 9-sec [] 2% lactic acid spray wash, a 60-sec [] 12% TSP dip or a combined...

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

    DOE Patents [OSTI]

    Lear, Kevin L. (Albuquerque, NM)

    1996-01-01

    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.

  6. Reflector and Shield Material Properties for Project Prometheus

    SciTech Connect (OSTI)

    J. Nash

    2005-11-02

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

  7. 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

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

    DOE Patents [OSTI]

    Kare, J.T.

    1992-10-06

    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.

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

    DOE Patents [OSTI]

    Kare, Jordin T. (Pleasanton, CA)

    1992-01-01

    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.

  10. 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

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

    E-Print Network [OSTI]

    Ghosh, Somali

    2014-04-13

    The United States sheep industry has suffered an almost constant decline in sheep and lamb inventories; a record of 56 million head in the early 1940s to only 5.54 million head in 2011. The steady decline of the industry ...

  12. The Lamb-Bateman integral equation and the fractional derivatives

    E-Print Network [OSTI]

    D. Babusci; G. Dattoli; D. Sacchetti

    2010-06-08

    The Lamb-Bateman integral equation was introduced to study the solitary wave diffraction and its solution was written in terms of an integral transform. We prove that it is essentially the Abel integral equation and its solution can be obtained using the formalism of fractional calculus.

  13. Infectious Entero-Toxemia (Milk Colic) of Lambs and Kids. 

    E-Print Network [OSTI]

    Hardy, W. T. (William Tyree); Boughton, I. B. (Ivan Bertrand)

    1941-01-01

    except for Type C antitoxin which was not available. A typical test to type the organism, No. 422, isolated from a fatal feld case of entero-toxemia in a lamb, is illustrated in Table 1. In setting up the test each toxin was dissolved in sterile...

  14. Lamb shift due to surface plasmon polariton modes 

    E-Print Network [OSTI]

    Sun, Qingqing; Al-Amri, M.; Kamli, Ali; Zubairy, M. Suhail

    2008-01-01

    The Lamb shift of a hydrogen atom due to the surface plasmon polariton (SPP) modes is calculated and we observe both band edge and surface enhancement. The atom sits inside a thin metal slab which is sandwiched by two semi-infinite dielectrics...

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

    E-Print Network [OSTI]

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

    1923-01-01

    about fourteen per cent. cheaper than made by Lot 1 ancl the profits per lamb were 29 cents greater. Table 10. Comparison of ground threshed kafir with ground shelled corn. It will be seen that Lot 7, fattened on ground threshed kafir. made practica...

  16. Effects of aggregate morphology and size on laser-induced incandescence and scattering from black carbon (mature soot)

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

    Bambha, Ray P.; Michelsen, Hope A.

    2015-07-03

    We have used a Single-Particle Soot Photometer (SP2) to measure time-resolved laser-induced incandescence (LII) and laser scatter from combustion-generated mature soot with a fractal dimension of 1.88 extracted from a burner. We have also made measurements on restructured mature-soot particles with a fractal dimension of 2.3–2.4. We reproduced the LII and laser-scatter temporal profiles with an energy- and mass-balance model, which accounted for heating of particles passed through a CW-laser beam over laser–particle interaction times of ~10 ?s. Furthermore, the results demonstrate a strong influence of aggregate size and morphology on LII and scattering signals. Conductive cooling competes with absorptivemore »heating on these time scales; the effects are reduced with increasing aggregate size and fractal dimension. These effects can lead to a significant delay in the onset of the LII signal and may explain an apparent low bias in the SP2 measurements for small particle sizes, particularly for fresh, mature soot. The results also reveal significant perturbations to the measured scattering signal from LII interference and suggest rapid expansion of the aggregates during sublimation.« less

  17. AlGaAsSb/GaSb Distributed Bragg Reflectors Grown by Organometallic Vapor Phase Epitaxy

    SciTech Connect (OSTI)

    C.A. Wang; C.J. Vineis; D.R. Calawa

    2002-02-13

    The first AlGaAsSb/GaSb quarter-wave distributed Bragg reflectors grown by metallic vapor phase epitaxy are reported. The peak reflectance is 96% for a 10-period structure.

  18. Acoustic Bragg reflectors for Q-enhancement of unreleased MEMS resonators

    E-Print Network [OSTI]

    Wang, Wentao, S.M. Massachusetts Institute of Technology

    2011-01-01

    In this thesis, the author introduces the first fully unreleased Micro-Electro-Mechanical (MEM) resonator, and the design of acoustic Bragg reflectors (ABRs) for energy localization and quality factor (Q)- enhancement for ...

  19. Acoustic Bragg Reflectors for Q-Enhancement of Unreleased MEMS Resonators

    E-Print Network [OSTI]

    Wang, Wentao

    This work presents the design of acoustic Bragg reflectors (ABRs) for unreleased MEMS resonators through analysis and simulation. Two of the greatest challenges to the successful implementation of MEMS are those of packaging ...

  20. Chiral perturbation theory of muonic hydrogen Lamb shift: polarizability contribution

    E-Print Network [OSTI]

    Jose Manuel Alarcón; Vadim Lensky; Vladimir Pascalutsa

    2013-12-04

    The proton polarizability effect in the muonic-hydrogen Lamb shift comes out as a prediction of baryon chiral perturbation theory at leading order and our calculation yields for it: $\\Delta E^{(\\mathrm{pol})} (2P-2S) = 8^{+3}_{-1}\\, \\mu$eV. This result is consistent with most of evaluations based on dispersive sum rules, but is about a factor of two smaller than the recent result obtained in {\\em heavy-baryon} chiral perturbation theory. We also find that the effect of $\\Delta(1232)$-resonance excitation on the Lamb-shift is suppressed, as is the entire contribution of the magnetic polarizability; the electric polarizability dominates. Our results reaffirm the point of view that the proton structure effects, beyond the charge radius, are too small to resolve the `proton radius puzzle'.

  1. Chiral perturbation theory of muonic hydrogen Lamb shift: polarizability contribution

    E-Print Network [OSTI]

    Alarcón, Jose Manuel; Pascalutsa, Vladimir

    2013-01-01

    The proton polarizability effect in the muonic-hydrogen Lamb shift comes out as a prediction of baryon chiral perturbation theory at leading order and our calculation yields for it: $\\Delta E^{(\\mathrm{pol})} (2P-2S) = 8^{+3}_{-1}\\, \\mu$eV. This result is consistent with most of evaluations based on dispersive sum rules, but is about a factor of two smaller than the recent result obtained in {\\em heavy-baryon} chiral perturbation theory. We also find that the effect of $\\Delta(1232)$-resonance excitation on the Lamb-shift is suppressed, as is the entire contribution of the magnetic polarizability; the electric polarizability dominates. Our results reaffirm the point of view that the proton structure effects, beyond the charge radius, are too small to resolve the `proton radius puzzle'.

  2. The muonic hydrogen Lamb shift and the proton radius

    E-Print Network [OSTI]

    Clara Peset

    2014-11-14

    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.

  3. The optical reflector system for the CANGAROO-II imaging atmospheric Cherenkov telescope

    E-Print Network [OSTI]

    A. Kawachi; Y. Hayami; J. Jimbo; S. Kamei; T. Kifune; H. Kubo; J. Kushida; S. LeBohec; K. Miyawaki; M. Mori; K. Nishijima; J. R. Patterson; R. Suzuki; T. Tanimori; S. Yanagita; T. Yoshikoshi; A. Yuki

    2000-07-14

    A new imaging atmospheric Cherenkov telescope (CANGAROO-II) with a light-weight reflector has been constructed. Light, robust, and durable mirror facets of containing CFRP (Carbon Fiber Reinforced Plastic) laminates were developed for the telescope. The attitude of each facet can be adjusted by stepping motors. In this paper, we describe the design, manufacturing, alignment procedure, and the performance of the CANGAROO-II optical reflector system.

  4. The optical reflector system for the CANGAROO-II imaging atmospheric Cherenkov telescope

    E-Print Network [OSTI]

    Kawachi, A; Jimbo, J; Kamei, S; Kifune, T; Kubo, H; Kushida, J; Le Bohec, S; Miyawaki, K; Mori, M; Nishijima, K; Patterson, J R; Suzuki, R; Tanimori, T; Yanagita, S; Yoshikoshi, T; Yuki, A

    2001-01-01

    A new imaging atmospheric Cherenkov telescope (CANGAROO-II) with a light-weight reflector has been constructed. Light, robust, and durable mirror facets of containing CFRP (Carbon Fiber Reinforced Plastic) laminates were developed for the telescope. The attitude of each facet can be adjusted by stepping motors. In this paper, we describe the design, manufacturing, alignment procedure, and the performance of the CANGAROO-II optical reflector system.

  5. 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

  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.

    1995-02-14

    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. Photodetector with absorbing region having resonant periodic absorption between reflectors

    DOE Patents [OSTI]

    Bryan, Robert P. (Boulder, CO); Olbright, Gregory R. (Boulder, CO); Brennan, Thomas M. (Albuquerque, NM); Tsao, Jeffrey Y. (Albuquerque, NM)

    1995-02-14

    A photodetector 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.

  8. 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)

    2009-01-15

    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)

  9. 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)

    2008-11-15

    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)

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

    E-Print Network [OSTI]

    Covington, Brian Reed

    1997-01-01

    time period. In Experiment 2, forty-eight wether lambs ( avg wt = 28.4 kg) were used to determine the effects of H on performance, carcass characteristics, and mineral status in the wether lamb. Lambs were blocked by initial weight and randomly assigned...

  11. 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

  12. The Effects of Leptin Antagonist on Hypothalamic Neuropeptide Y Circuitry in Infantile Male Lambs

    E-Print Network [OSTI]

    Bedenbaugh, Michelle

    2012-04-16

    that disruption of leptin signaling alters the NPY circuitry in the hypothalamus of infantile lambs. Twelve neonatal Dorset X Finn male lambs were assigned randomly to one of three experimental groups (n = 4/group): 1) Early Antagonist (EA), 2) Late Antagonist (LA...

  13. 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)

    2013-05-06

    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.

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

    E-Print Network [OSTI]

    Davis, George Theodore

    1979-01-01

    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... of MASTER OF SCIENCE December ' 1979 Major Subject: Animal "" ience MODIF1ED GASEOUS ATMOSPHERES FOR STORAGE OF BEEFi LAMB AND PORK A Thesis GEORGE THEODORE DAVIS III Approved as to style and content. by (Co Chairman of ommittee) (Member) (Member...

  15. 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 on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QAsource History View NewTexas:Montezuma, Arizona: Energy Resources JumpColorado: Energy Resources Jump to:Lamb

  16. 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)

    2002-01-01

    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.

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

    E-Print Network [OSTI]

    Rollins, Andrew M.

    Design and performance of a low-cost acrylic reflector for a ~7x concentrating photovoltaic module OH 44106 ABSTRACT Replex Plastics aims to develop a low-cost, low-concentration photovoltaic module concentrator; CPC; low concentration photovoltaics, CPV, LCPV, acrylic reflector 1. INTRODUCTION The recent

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

    E-Print Network [OSTI]

    Cannell, Robert Charles

    1988-01-01

    ) the quantitative yield of retail cuts or the yield of edible meat, and (2) the quality factors that will assure a highly desirable eating satisfaction. Because over 90/o of the lambs marketed in this country grade Choice or better, the yield of retail cuts... machines by the various investigators. ~Mrk ~in Although lamb value is mostly determined by cutability, the marketing system used in the lamb industry today is based almost solely on weight, which may or may not directly affect retail value. Because...

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

    E-Print Network [OSTI]

    Stelly, Randall

    1959-01-01

    of mutton and 11 sold an average of 259 pounds of goat meat. Most mutton and goat handlers are local independent meat retailers while meat retailers in chain stores reported selling about six times more lamb on the average than local independent... sales to merit further attempts. Most smaller handlers feel that their stock and volume of sale are too small to warrant advertising lamb. Only 1 in 3 handlers. had lamb or mutton on display at the time of interview, although 4 in 10 reported...

  20. Study on differences between high contrast grating reflectors for TM and TE polarizations and their impact on VCSEL designs

    E-Print Network [OSTI]

    Chung, Il-Sug

    2015-01-01

    A theoretical study of differences in broadband high-index-contrast grating (HCG) reflectors for TM and TE polarizations is presented, covering various grating parameters and properties of HCGs. It is shown that the HCG reflectors for TM polarization (TM HCG reflectors) have much thicker grating thicknesses and smaller grating periods than the TE HCG reflectors. This difference is found to originate from the different boundary conditions met for the electric field of each polarization. Due to this difference, the TM HCG reflectors have much shorter evanescent extension of HCG modes into low-refractive-index media surrounding the HCG. This enables to achieve a very short effective cavity length for VCSELs, which is essential for ultrahigh speed VCSELs and MEMS-tunable VCSELs. The obtained understandings on polarization dependences will be able to serve as important design guidelines for various HCG-based devices.

  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

    2014-05-12

    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. A Generalized Adjoint Approach for Quantifying Reflector Assembly Discontinuity Factor Uncertainties

    SciTech Connect (OSTI)

    Yankov, Artem [University of Michigan] [University of Michigan; Collins, Benjamin [University of Michigan] [University of Michigan; Jessee, Matthew Anderson [ORNL] [ORNL; Downar, Thomas [University of Michigan] [University of Michigan

    2012-01-01

    Sensitivity-based uncertainty analysis of assembly discontinuity factors (ADFs) can be readily performed using adjoint methods for infinite lattice models. However, there is currently no adjoint-based methodology to obtain uncertainties for ADFs along an interface between a fuel and reflector region. To accommodate leakage effects in a reflector region, a 1D approximation is usually made in order to obtain the homogeneous interface flux required to calculate the ADF. Within this 1D framework an adjoint-based method is proposed that is capable of efficiently calculating ADF uncertainties. In the proposed method the sandwich rule is utilized to relate the covariance of the input parameters of 1D diffusion theory in the reflector region to the covariance of the interface ADFs. The input parameters covariance matrix can be readily obtained using sampling-based codes such as XSUSA or adjoint-based codes such as TSUNAMI. The sensitivity matrix is constructed using a fixed-source adjoint approach for inputs characterizing the reflector region. An analytic approach is then used to determine the sensitivity of the ADFs to fuel parameters using the neutron balance equation. A stochastic approach is used to validate the proposed adjoint-based method.

  4. 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

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

    E-Print Network [OSTI]

    Fritz, Kristina Danielle

    1996-01-01

    Feeder lambs (n=90) were selected from three breed types (Commercial Finewool, Suffolk X Commercial Finewool first cross (Fl cross) and Suffolk) to represent the current market supply in Texas. Three wethers and three ewes from each breed type were...

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

    DOE Patents [OSTI]

    Angel, Roger P

    2013-01-08

    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.

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

    E-Print Network [OSTI]

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

    1990-01-01

    .4 New MexicO 578 4.0 New Mexico 451 4.2 Ohio 517 3.6 Iowa 405 3.8 Top 10 10,017 69.0 Top 10 7,672 71.2 U.S. 14,512 100.0 U.S. 10,774 100.0 1 Livestock and Meat Statistics, U.S. Department of Agriculture, Washington, D.C. 2Meat Facts, American Meat... Feeder lambs .0403 .0368 .0359 .0363 Labor .0015 .0015 .0007 .0010 Other .0011 .0010 .0010 .0010 Death loss .0325 .0281 .0352 .0327 Veterinary and medical .0141 .0279 .0176 .0196 Gas and oil .0063 .0023 .0096 .0070 Electricity .0041 .0059 .0027...

  8. An improved suppression method of the transverse-electromagnetic mode leakage with two reflectors in the triaxial klystron amplifier

    SciTech Connect (OSTI)

    Qi, Zumin; Zhang, Jun; Zhong, Huihuang; Zhang, Qiang; Zhu, Danni [College of Optoelectric Science and Engineering, National University of Defense Technology, Changsha, Hunan 410073 (China)

    2014-07-15

    Suppression of the transverse-electromagnetic (TEM) mode leakage is crucial in the design of a triaxial klystron amplifier with high gain, because a small microwave leakage from the buncher or the output cavity could overwhelm the input signal with low power. In this paper, a specially designed reflector is proposed to suppress the TEM mode leakage, whose axial electric field is approximately zero at the beam radial position. Theoretical analysis indicates that the reflector introduces little influence on the normal modulation of the beam while keeping a high reflection coefficient. By using two such reflectors with different eigen frequencies located in front of the buncher cavity and the output cavity, respectively, an improved triaxial klystron amplifier is presented. The simulation results show that the reflectors substantially decrease the TEM mode leakage power and achieve very good isolation among the cavities. The improved triaxial klystron amplifier can operate normally with 10's kW microwave injection without self-oscillations.

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

    DOE Patents [OSTI]

    Horton, Richard H. (Schenectady, NY)

    1980-01-01

    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.

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

    DOE Patents [OSTI]

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

    2009-11-03

    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.

  11. Multiple-shot laser damage thresholds of ultraviolet reflectors at 248 and 308 nanometers

    SciTech Connect (OSTI)

    Foltyn, S.R.; Newnam, B.E.

    1980-01-01

    Multiple-shot damage thresholds of dielectric reflectors have been measured at 248 and 308 nm. Standard irradiation conditions were a 10-ns pulsewidth, 0.6-mm spot diameter and 35-Hz pulse repetition frequency. The reflectors, from various sources, were composed of oxide and fluoride films. Although damage was generally initiated at visible film defects, there was no correlation between damage susceptibility and the appearance of these defects. At levels near threshold, damage was most often observed as an increase in white-light scatter of a site with no growth upon continued irradiation; at higher levels, the damage site grew with successive shots. Test sites were subjected to at least 10/sup 3/ shots and some sites received as many as 2.5 x 10/sup 4/ shots; however, with only one exception damage was found to occur within the first few shots or not at all. Reflectors at 248 nm typically had damage thresholds in the 1.0 to 1.8 J/cm/sup 2/ range with two samples exhibiting unexpectedly high thresholds of 2.8 and 3.0 J/cm/sup 2/. In some cases, a subthreshold pre-irradiation treatment resulted in a 20 to 25% enhancement in damage resistance.

  12. 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.

    2012-06-01

    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.

  13. Multijunction GaInP/GaInAs/Ge solar cells with Bragg reflectors

    SciTech Connect (OSTI)

    Emelyanov, V. M. Kalyuzhniy, N. A.; Mintairov, S. A.; Shvarts, M. Z.; Lantratov, V. M.

    2010-12-15

    Effect of subcell parameters on the efficiency of GaInP/Ga(In)As/Ge tandem solar cells irradiated with 1-MeV electrons at fluences of up to 3 x 10{sup 15} cm{sup -2} has been theoretically studied. The optimal thicknesses of GaInP and GaInAs subcells, which provide the best photocurrent matching at various irradiation doses in solar cells with and without built-in Bragg reflectors, were determined. The dependences of the photoconverter efficiency on the fluence of 1-MeV electrons and on the time of residence in the geostationary orbit were calculated for structures optimized to the beginning and end of their service lives. It is shown that the optimization of the subcell heterostructures for a rated irradiation dose and the introduction of Bragg reflectors into the structure provide a 5% overall increase in efficiency for solar cells operating in the orbit compared with unoptimized cells having no Bragg reflector.

  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)

    2011-12-27

    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. National Electrical Manufacturers Association

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

    for incandescent reflector lamps do not need to be amended and let the marketplace transition to more energy efficient lighting technologies combined with other regulatory...

  16. Evaluation of the irising effect of a slow-gating intensified charge-coupled device on laser-induced incandescence measurements of soot

    SciTech Connect (OSTI)

    Shaddix, Christopher R.; Williams, Timothy C. [Combustion Research Facility, Sandia National Laboratories, 7011 East Avenue, Livermore, California 94550 (United States)

    2009-03-15

    Intensified charge-coupled devices (ICCDs) are used extensively in many scientific and engineering environments to image weak or temporally short optical events. To optimize the quantum efficiency of light collection, many of these devices are chosen to have characteristic intensifier gate times that are relatively slow, on the order of tens of nanoseconds. For many measurements associated with nanosecond laser sources, such as scattering-based diagnostics and most laser-induced fluorescence applications, the signals rise and decay sufficiently fast during and after the laser pulse that the intensifier gate may be set to close after the cessation of the signal and still effectively reject interferences associated with longer time scales. However, the relatively long time scale and complex temporal response of laser-induced incandescence (LII) of nanometer-sized particles (such as soot) offer a difficult challenge to the use of slow-gating ICCDs for quantitative measurements. In this paper, ultraviolet Rayleigh scattering imaging is used to quantify the irising effect of a slow-gating scientific ICCD camera, and an analysis is conducted of LII image data collected with this camera as a function of intensifier gate width. The results demonstrate that relatively prompt LII detection, generally desirable to minimize the influences of particle size and local gas pressure and temperature on measurements of the soot volume fraction, is strongly influenced by the irising effect of slow-gating ICCDs.

  17. 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)

    2014-02-18

    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.

  18. 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

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

    E-Print Network [OSTI]

    Varnadore, William Lee

    1972-01-01

    and increasing storage life, yet had no effect on the ultimate palat- abilityy of cooked lamb. Polyvinyl chloride film (PVC) effectively reduced carcass weight loss as shrinkage and improved the appearance of the subcutaneous fat cover. However, the use... in 7, 6 and 7 comparisons, 18 Table 4. Comparison of Bacterial Counts (log&0/ 1 in. Z) from Lamb Cuts in Experiment 2. Treatmenta Period of Day of Storageb retail dis la c (da s) 0 5 Chamber type, high vacuum, barrier bag Soft film wrap, PVC...

  20. Fattening Lambs on Corn, Milo, Hegari, Wheat, and Oats, with Cottonseed Cake and Alfalfa 

    E-Print Network [OSTI]

    Mackey, A. K. (Arthur Kapp); Jones, J. M. (John McKinley)

    1932-01-01

    Engineering J. R. Knox, M. S., Animal Husbandry A. K. Mackey. M. S., Animal Husbandry A. L. Darndx, M. A., Dairy Husband- arian *ian *Dean School of Veterinary Medicine. ?As of December 1, 1932. **In cooperation with U. S. Department of Agriculture. ??On.... MACKEY and J. M. JONES I The lamb-feeding trials reported in this Bulletin were made to gain 1 additional information on the value of Texas-grown feedstuffs for fat- tening lambs. Five trials (11) at the Spur Substation (Texas Bulletin 379...

  1. Performance of purebred and crossbred sheep on accelerated lambing on cultivated pastures in Peru 

    E-Print Network [OSTI]

    Coronado Seminario, Luis Felipe

    1983-01-01

    , respectively); mating with Suffolk rams resulted in a significantly shorter gestation (143. 4 days) than mating with German Mutton Merino, German Blackheaded Mutton, and FL x Awassi rams (144. 7-145. 3 d). Bocharov (1981) reported that on 450 Romanov ewes... by range ewe crosses). Visscher (1981) reported that the respective lambing interval averaged 314 , 326, 320 and 311 d for Ile-de-France, Finnish Landrace, Ile-de-France x Finnish Landrace and Finnish Landrace x Ile-de-France. Lambing interval...

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

    SciTech Connect (OSTI)

    Engels, Ralf Gorski, Robert; Grigoryev, Kiril; Mikirtychyants, Maxim; Rathmann, Frank; Seyfarth, Hellmut; Ströher, Hans; Weiss, Philipp; Kochenda, Leonid; Kravtsov, Peter; Trofimov, Viktor; Tschernov, Nikolay; Vasilyev, Alexander; Vznuzdaev, Marat; Schieck, Hans Paetz gen.

    2014-10-15

    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.

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

    DOE Patents [OSTI]

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

    1999-01-01

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

  4. Damage thresholds of thin film materials and high reflectors at 248 nm

    SciTech Connect (OSTI)

    Rainer, F.; Lowdermilk, W.H.; Milam, D.; Carniglia, C.K.; Hart, T.T.; Lichtenstein, T.L.

    1982-01-01

    Twenty-ns, 248-nm KrF laser pulses were used to measure laser damage thresholds for halfwave-thick layers of 15 oxide and fluoride coating materials, and for high reflectance coatings made with 13 combinations of these materials. The damage thresholds of the reflectors and single-layer films were compared to measurements of several properties of the halfwave-thick films to determine whether measurements of these properties of single-layer films to determine whether measurements of these properties of single-layer films were useful for identifying materials for fabrication of damage resistant coatings.

  5. Sensors and Actuators A 123124 (2005) 379387 A new design and manufacturing process for embedded Lamb

    E-Print Network [OSTI]

    Khuri-Yakub, Butrus T. "Pierre"

    2005-01-01

    embedded in a 3 mm thick carbon fiber reinforced plastic (CFRP) composite laminate. Acoustical response fluoride (PVDF); Lamb waves; Carbon fiber composites; Smart materials; Non-destructive testing (NDT) 1 of structures/components made of carbon epoxy composite laminates commonly used in spacecrafts, satellite

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

    E-Print Network [OSTI]

    Eckert, Gregory Evan

    1997-01-01

    -Cu diets received an oral drench containing ammonium tetrathiomolybdate beginning 2 mo prior to parturition. At the time of birth lambs were assigned to either a treatment (cc- methyl-DL-p-tyrosine, AMPT) or control (saline) injection group, in order...

  7. CHANGES IN FIRE REGIMES AND THE SUCCESSIONAL STATUS OF TABLE MOUNTAIN PINE (Pinus pungens Lamb.)

    E-Print Network [OSTI]

    Grissino-Mayer, Henri D.

    CHANGES IN FIRE REGIMES AND THE SUCCESSIONAL STATUS OF TABLE MOUNTAIN PINE (Pinus pungens Lamb and encouragement concerning Table Mountain pine in Great Smoky Mountains National Park, and the National Park Service for providing invaluable Table Mountain pine stand data. I wish to thank Charles Smart

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

    E-Print Network [OSTI]

    Sweatt, Craig Reed

    1996-01-01

    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...

  9. 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 of innovative Structural Health Monitoring (SHM) methods and systems. Of particular importance is the design European Workshop on Structural Health Monitoring July 8-11, 2014. La Cité, Nantes, France Copyright

  10. 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

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

    E-Print Network [OSTI]

    Savely G. Karshenboim; D. I. Mendeleev

    1994-11-22

    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.

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

    E-Print Network [OSTI]

    D. S. Shapiro; A. A. Zhukov; W. V. Pogosov; Yu. E. Lozovik

    2015-05-04

    A natural atom placed into a cavity with time-dependent parameters can be parametrically excited due to the interaction with the quantized photon mode. One of the channels of such a process is the dynamical Lamb effect, induced by a nonadiabatic modulation of atomic level Lamb shift. However, in experiments with natural atoms it is quite difficult to isolate this effect from other mechanisms of atom excitation. We point out that a transmission line cavity coupled with a superconducting qubit (artificial macroscopic atom) provides a unique platform for the observation of the dynamical Lamb effect. A key idea is to exploit a dynamically tunable qubit-resonator coupling, which was implemented quite recently. By varying nonadiabatically the coupling, it is possible to parametrically excite a qubit through a nonadiabatic modulation of the Lamb shift, even if the cavity was initially empty. A dynamics of such a coupled system is studied within the Rabi model with time-dependent coupling constant and beyond the rotating wave approximation. An efficient method to increase the effect through the periodic and nonadiabatic switching of a qubit-resonator coupling energy is proposed.

  13. Pullman's Weather and Air Quality Station James O'Malley, Brian Lamb, Tom Jobson

    E-Print Network [OSTI]

    Collins, Gary S.

    Pullman's Weather and Air Quality Station James O'Malley, Brian Lamb, Tom Jobson Thanks, and to Dr. Shelley N. Pressley. To monitor air quality in Pullman, the Laboratory for Atmospheric Research at Washington State University has operated a combined air monitoring and weather station located on the roof

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

    E-Print Network [OSTI]

    Collins, Gary S.

    Pollutant Deposition Maps and Analysis Pierre Wong, Joseph Vaughan, and Brian Lamb Laboratory the U.S. National Park Service. Models that simulate meteorology, pollutant emissions, and atmospheric a series of pollutant deposition maps. These maps will show the total deposition for selected species

  15. 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

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

    SciTech Connect (OSTI)

    Yang, Yang; O’Brien, Paul G.; Materials Chemistry Research Group, Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario M5S 3H6 ; Ozin, Geoffrey A. E-mail: kherani@ecf.utoronto.ca; Kherani, Nazir P. E-mail: kherani@ecf.utoronto.ca

    2013-11-25

    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.

  17. Application of ITO/Al reflectors for increasing the efficiency of single-crystal silicon solar cells

    SciTech Connect (OSTI)

    Kopach, V. R.; Kirichenko, M. V. Khrypunov, G. S.; Zaitsev, R. V.

    2010-06-15

    It is shown that an increase in the efficiency and manufacturability of single-junction single-crystal silicon photoelectric converters of solar energy requires the use of a back-surface reflector based on conductive transparent indium-tin oxide (ITO) 0.25-2 {mu}m thick. To increase the efficiency and reduce the sensitivity to the angle of light incidence on the photoreceiving surface of multijunction photoelectric converters with vertical diode cells based on single-crystal silicon, ITO/Al reflectors with an ITO layer >1 {mu}m thick along vertical boundaries of diode cells should be fabricated. The experimental study of multijunction photoelectric converters with ITO/Al reflectors at diode cell boundaries shows the necessity of modernizing the used technology of ITO layers to achieve their theoretically calculated thickness.

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

    SciTech Connect (OSTI)

    Tuninetti, G. . Research Div.); Botta, E.; Criscuolo, C.; Riscossa, P. . Nuclear Div.); Giammanco, F. . Dipt. di Fisica); Rosa-Clot, M. . Dipt. di Fisica)

    1989-04-20

    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''.

  19. TRANSMISSION ELECTRON MICROSCOPY OF THE TEXTURED SILVER BACK REFLECTOR OF A THIN FILM SILICON SOLAR CELL: FROM CRYSTALLOGRAPHY TO OPTICAL ABSORPTION

    E-Print Network [OSTI]

    Dunin-Borkowski, Rafal E.

    in amorphous, microcrystalline and micromorph thin-film Si solar cells is an important and active field-reflector of thin-film Si solar cells. 1 INTRODUCTION The study of light trapping in thin-film Si solar cells for an optimized back reflector structure in a microcrystalline thin film Si solar cell, when compared with the use

  20. 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.

    2014-08-01

    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.

  1. 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.

    2008-05-19

    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.

  2. The tolerance of lambs to chronic and acute administration of insulin as a measure of ruminal development 

    E-Print Network [OSTI]

    Reagor, John Charles

    1963-01-01

    Characteristics and Relative Ranking of the Tolerance to Insulin . . . . . . . . . . . . . 21 6. Experiment III: Coefficients of Correlation Among Blood Glucose Values Befoze and After In]ection of Insulin and Characteristics of Ruminal Development of Lambs... with Previous Chronic Insulin . . . . . ~ 26 Experiment III; Coefficients of Correlation Among Blood Glucose Values Before and After In)ection of Insulin and Characteristics of Ruminal Development of Lambs With no Previous Insulin Treatment Experiment III...

  3. Improved red-response in thin film a-Si:H solar cells with soft-imprinted plasmonic back reflectors

    E-Print Network [OSTI]

    Polman, Albert

    Improved red-response in thin film a-Si:H solar cells with soft-imprinted plasmonic back reflectors is a critical component of solar cell development. In typical thin film cells the thickness of the absorbing of photovoltaic power. Thin film Si solar cells using hydrogenated amorphous Si a-Si:H and nano- crystalline Si nc

  4. 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.

    2010-10-01

    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.

  5. 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

    2009-12-01

    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.

  6. Nuclear recoil effect in the Lamb shift of light hydrogen-like atoms

    E-Print Network [OSTI]

    Yerokhin, V A

    2015-01-01

    We report high-precision calculations of the nuclear recoil effect to the Lamb shift of hydrogen-like atoms to the first order in the electron-nucleus mass ratio and to all orders in the nuclear binding strength parameter $Z\\alpha$. The results are in excellent agreement with the known terms of the $Z\\alpha$ expansion and allow an accurate identification of the nonperturbative higher-order remainder. For hydrogen, the higher-order remainder was found to be much larger than anticipated. This result resolves the long-standing disagreement between the numerical all-order and the analytical $Z\\alpha$-expansion approaches to the recoil effect and completely removes the second-largest theoretical uncertainty in the hydrogen Lamb shift of the $1S$ and $2S$ states.

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

    E-Print Network [OSTI]

    Robbins, Joe Dennis

    1959-01-01

    o e' ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ I 27 ~ 27 Analysis bf Variance of Serum Potassium Ievels Due to Treatments . . . . . . ' ~ 16. Analysis of Variance of Serum Potassium Levels for Lambs With and Without Calculi . . . ' . . . . . . . . . 29 17... of potaislum acid phosphate (X&HPO~) per pound of feed, The addition of calcium carbonate (CaCO ) or phosphoric acid (H PO~) singularly or in combination ' did not produce the significant incidence of calculi that potassium acid phosphate (K&HPO) ) did when...

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

    E-Print Network [OSTI]

    Naylor, Robert Kenneth

    1967-01-01

    19 Objectives and Related Hypotheses 21 IV LITEPATSLRE REVIEW 24 Retail Market Tests 25 Matched-lot controlled experiments 25 Test store versus control store experiments. . 27 Latin-square experiments . . . , . ~ . , 28 Factorial experiments 28... 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...

  9. 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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustmentsShirleyEnergy A plug-inPPLforLDRD Report11,SecurityHomeRemarks As Prepared for

  10. Incandescent Lighting | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE: Alternative Fuelsof Energy ServicesContractingManagementSuccess,Energy

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

    SciTech Connect (OSTI)

    Adam Schaut Philip Smith

    2011-12-30

    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

  12. 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.

    1981-05-01

    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.

  13. Transmission comb of a distributed Bragg reflector induced by two surface dielectric gratings

    E-Print Network [OSTI]

    Zhao, Xiaobo; Zhang, Yongyou

    2015-01-01

    With transfer matrix theory, we study the transmission of a distributed Bragg reflector (DBR) with two dielectric gratings on top and on the bottom. Owing to the diffraction of the two gratings, the transmission shows a comb-like spectrum which red shifts with increasing the grating period during the forbidden band of the DBR. The number density of the comb peaks increases with increasing the number of the DBR cells, while the ratio of the average full width at half maximum (FWHM) of the transmission peaks in the transmission comb to the corresponding average free spectral range, being about 0.04 and 0.02 for the TE and TM incident waves, is almost invariant. The average FWHM of the TM waves is about half of the TE waves, and both they could be narrower than 0.1 nm. In addition, the transmission comb peaks of the TE and TM waves can be fully separated during certain waveband. We further prove that the transmission comb is robust against the randomness of the heights of the DBR layers, even when a 15\\% randomn...

  14. Correlated-intensity velocimeter for arbitrary reflector for laser-produced plasma experiments

    SciTech Connect (OSTI)

    Wang Zhehui; Luo Shengnian; Barnes, Cris W.; Briggs, Matthew E.; Paisley, Dennis L.; Paul, Stephen F.

    2006-10-15

    A laser-based technique, called correlated-intensity velocimeter for arbitrary reflector (CIVAR), is described for velocity measurement of reflecting surfaces in real time. Velocity versus time is an important measurement in laser-produced high-energy density plasma experiments because the motion of the surface depends on both the equation of the state of the surface material and laser-produced plasma. The physics and working principle of CIVAR are the same as those of a previous concept that resolves Doppler shift of plasma light emission using a pair of narrow passband interference filters. One unique feature of CIVAR is that a reflected laser beam is used instead of plasma emission. Therefore, CIVAR is applicable to both emitting and nonemitting reflecting surfaces. Other advantages of CIVAR include its simplicity, lower cost, and unambiguous data analysis that can be fully automated. The design of a single-point CIVAR is described in detail with emphasis on laser wavelength selection and signal-to-noise ratio. The single-point CIVAR system can be expanded into a multiple-point system straightforwardly. It is possible to use CIVAR concept to construct a two-dimensional imaging system for a nonuniform velocity field of a large reflecting surface; such a velocity imaging system may have applications beyond laser-produced plasma experiments, for example, in shock compression of condensed matter.

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

    SciTech Connect (OSTI)

    Margaret A. Marshall; John D. Bess

    2012-11-01

    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].

  16. Dissipation in a rotating frame: Master equation, effective temperature, and Lamb shift

    SciTech Connect (OSTI)

    Verso, Alvise; Ankerhold, Joachim

    2010-02-15

    Motivated by recent realizations of microwave-driven nonlinear resonators in superconducting circuits, the impact of environmental degrees of freedom is analyzed as seen from a rotating frame. A system plus reservoir model is applied to consistently derive in the weak coupling limit the master equation for the reduced density in the moving frame and near the first bifurcation threshold. The concept of an effective temperature is introduced to analyze to what extent a detailed balance relation exists. Explicit expressions are also found for the Lamb-shift. Results for ohmic baths are in agreement with experimental findings, while for structured environments population inversion is predicted that may qualitatively explain recent observations.

  17. 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

  18. 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

    2013-11-15

    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.

  19. The Lamb shift in muonic hydrogen and the proton radius from effective field theories

    E-Print Network [OSTI]

    Peset, Clara

    2015-01-01

    We comprehensively analyse the theoretical prediction for the Lamb shift in muonic hydrogen, and the associated determination of the proton radius. We use effective field theories. This allows us to relate the proton radius with well-defined objects in quantum field theory, eliminating unnecessary model dependence. The use of effective field theories also helps us to organize the computation so that we can clearly state the parametric accuracy of the result. In this paper we review all (and check several of) the contributions to the energy shift of order $\\alpha^5$, as well as those that scale like $\\alpha^6\\times$logarithms in the context of non-relativistic effective field theories of QED.

  20. The Lamb shift in muonic hydrogen and the proton radius from effective field theories

    E-Print Network [OSTI]

    Clara Peset; Antonio Pineda

    2015-08-08

    We comprehensively analyse the theoretical prediction for the Lamb shift in muonic hydrogen, and the associated determination of the proton radius. We use effective field theories. This allows us to relate the proton radius with well-defined objects in quantum field theory, eliminating unnecessary model dependence. The use of effective field theories also helps us to organize the computation so that we can clearly state the parametric accuracy of the result. In this paper we review all (and check several of) the contributions to the energy shift of order $\\alpha^5$, as well as those that scale like $\\alpha^6\\times$logarithms in the context of non-relativistic effective field theories of QED.

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

    E-Print Network [OSTI]

    Morales-Tecotl, H A; Pimentel, L O; Morales-T\\'ecotl, Hugo A.; Pedraza, Omar; Pimentel, Luis O.

    2006-01-01

    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.

  2. 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

    2006-11-24

    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.

  3. ZnO/a-Si Distributed Bragg Reflectors for Light Trapping in Thin Film Solar Cells from Visible to Infrared Range

    E-Print Network [OSTI]

    Chen, Aqing; Zhu, Kaigui

    2015-01-01

    Distributed bragg reflectors (DBRs) consisting of ZnO and amorphous silicon (a-Si) were prepared by magnetron sputtering method for selective light trapping. The quarter-wavelength ZnO/a-Si DBRs with only 6 periods exhibit a peak reflectance of above 99% and have a full width at half maximum that is greater than 347 nm in the range of visible to infrared. The 6-pair reversed quarter-wavelength ZnO/a-Si DBRs also have a peak reflectance of 98%. Combination of the two ZnO/a-Si DBRs leads to a broader stopband from 686 nm to 1354 nm. Using the ZnO/a-Si DBRs as the rear reflector of a-Si thin film solar cells significantly increases the photocurrent in the spectrum range of 400 nm to 1000 nm, in comparison with that of the cells with Al reflector. The obtained results suggest that ZnO/a-Si DBRs are promising reflectors of a-Si thin-film solar cells for light trapping.

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

    E-Print Network [OSTI]

    Hurley, Leigh Anne

    1988-01-01

    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...

  5. Radiative-nonrecoil corrections of order {alpha}{sup 2}(Z{alpha}){sup 5} to the Lamb shift

    SciTech Connect (OSTI)

    Dowling, Matthew; Mondejar, Jorge; Piclum, Jan H.; Czarnecki, Andrzej [Department of Physics, University of Alberta, Edmonton, Alberta T6G 2G7 (Canada)

    2010-02-15

    We present results for the corrections of order {alpha}{sup 2}(Z{alpha}){sup 5} to the Lamb shift. We compute all the contributing Feynman diagrams in dimensional regularization and a general covariant gauge using a mixture of analytical and numerical methods. We confirm results obtained by other groups and improve their precision. Values of the 32''master integrals'' for this and similar problems are provided.

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

    SciTech Connect (OSTI)

    Niknam, A. R. Khajehmirzaei, M. R.; Davoudi-Rahaghi, B.; Rahmani, Z.; Jazi, B.; Abdoli-Arani, A.

    2014-07-15

    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.

  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

    2010-01-01

    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. 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.

  9. 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.

  10. 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.

  11. 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.

  12. 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.

  13. Nuclear structure corrections to the Lamb shift in $\\mu^3$He$^+$ and $\\mu^3$H

    E-Print Network [OSTI]

    Dinur, N Nevo; Bacca, S; Barnea, N

    2015-01-01

    Measuring the 2S-2P Lamb shift in a hydrogen-like muonic atom allows one to extract its nuclear charge radius with a high precision that is limited by the uncertainty in the nuclear structure corrections. The charge radius of the proton thus extracted was found to be 7-sigma away from the CODATA value, in what has become the yet unsolved "proton radius puzzle". Further experiments currently aim at the isotopes of hydrogen and helium: the precise extraction of their radii may provide a hint at the solution of the puzzle. We present the first ab initio calculation of nuclear structure corrections, including the nuclear polarization correction, to the 2S-2P transition in $\\mu^3$He$^+$ and $\\mu^3$H, and assess solid theoretical error bars. Our predictions reduce the uncertainty in the nuclear structure corrections to the level of a few percents and will be instrumental to the on-going $\\mu^3$He$^+$ experiment. We also support the mirror $\\mu\\,^3$H system as a candidate for further probing of the nucleon polarizab...

  14. DC power supply for charging of a 12 KV 200 KJ energy storage capacitor battery of a 500 KA pulse system for the magnetic horn and reflectors of the CERN neutrino beam

    E-Print Network [OSTI]

    Langeseth, B

    1968-01-01

    DC power supply for charging of a 12 KV 200 KJ energy storage capacitor battery of a 500 KA pulse system for the magnetic horn and reflectors of the CERN neutrino beam

  15. Lamb Feeding Trials in the El Paso Valley, 1947-49 : A Comparison of High Protein Cottonseed Products, and of Ground and Unground Sorghum Grain. 

    E-Print Network [OSTI]

    Lyerly, P. J. (Paul J.); Jones, John H.; Willey, N. B. (Norman Bailey)

    1951-01-01

    threshed mi10 in two lamb fattening tests, but it was stated that the test should be continued further. Later, Mackey and Jones (1932) observed *Respectively, assistant animal husbandman, El Paso Valley Experiment Station, Ysleta, Texas; professor... of Sorghum, Tex. Agr. Esp. Sta. Prog. Report 1064. Mackey, A. K. and s. M. Jones, 1932. Fattening Lambs on Corn, Milo, Hegari, Wheat and Oats with Cottonseed Cake and Al- falfa. Tex. &gr. Exp. Sta. Rul. 465. Neale, P. E., 1932. The Use of Cottonseed Meal...

  16. 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)

    1995-01-01

    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.

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

    DOE Patents [OSTI]

    Weiss, J.D.

    1995-08-29

    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.

  18. Engineering quantum pure states of a trapped cold ion beyond the Lamb-Dicke limit L. F. Wei,1,2

    E-Print Network [OSTI]

    Nori, Franco

    dimension of the motion of the ground state of the trapped ion should be much smaller than the effectiveEngineering quantum pure states of a trapped cold ion beyond the Lamb-Dicke limit L. F. Wei,1,2 Yu(s): 42.50.Dv, 42.50.Vk I. INTRODUCTION The engineering of quantum states has attracted consider- able

  19. 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

  20. In situ thin film thickness measurement with acoustic Lamb waves Jun Pei, F. Levent Degertekin, Butrus T. KhuriYakub, and Krishna C. Saraswat

    E-Print Network [OSTI]

    Khuri-Yakub, Butrus T. "Pierre"

    In situ thin film thickness measurement with acoustic Lamb waves Jun Pei, F. Levent Degertekin-standing highly conducting ultrananocrystalline diamond films with enhanced electron field emission properties gold films Appl. Phys. Lett. 101, 201102 (2012) Effect of N2 dielectric barrier discharge treatment

  1. Using MODIS FRP Values to Estimate Forest Fire PM 2.5 Emissions Riley Start, Brian Lamb, Brian Potter, Alistair Smith

    E-Print Network [OSTI]

    Collins, Gary S.

    Using MODIS FRP Values to Estimate Forest Fire PM 2.5 Emissions Riley Start, Brian Lamb, Brian Potter, Alistair Smith Forest and Rangeland Measurements Laboratory, College of Natural Resources, Washington State University USDA Forest Service 1. Introduction Accurate estimates of PM 2.5 (particulate

  2. Energy-efficient incandescent lamp: Final report

    E-Print Network [OSTI]

    Verderber, R.

    2010-01-01

    more energy than the best " Energy Ef- ficient Incandescentbest available conventional glass envelopes the greatest energyenvelope of best optical accuracy. The energy saving could

  3. Energy-efficient incandescent lamp: Final report

    E-Print Network [OSTI]

    Verderber, R.

    2010-01-01

    have doubled luminous efficacy, corresponding to 50% energyluminous than the clear lamp. The value of visible wattage 1n the energyluminous efficacy without l i f e reduction. Such efficacy Increase corresponds to an energy

  4. Incandescent Lighting Basics | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration would likeUniverseIMPACT EVALUATION PLAN FOR THE SITE-218in a V2O5 Battery Electrode

  5. Energy-Saving Incandescents | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration would like submitKansasCommunities EnergyU.S. DOEEnergy StorageTricks Lead3Image icon

  6. Energy-Saving Incandescents | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration would like submitKansasCommunities EnergyU.S. DOEEnergy StorageTricks Lead3Image iconFile

  7. Extreme ultraviolet reflector

    DOE Patents [OSTI]

    Newnam, Brian E. (Los Alamos, NM)

    1990-01-01

    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.

  8. 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

    2012-02-03

    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.

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

    SciTech Connect (OSTI)

    Lee, Jack M.

    1992-06-01

    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.

  10. Underwater Lighting by Submerged Lasers and Incandescent Sources

    E-Print Network [OSTI]

    Duntley, Seibert Q

    1971-01-01

    case contains a rotary solenoid with its axle protrudingcylinder containing a rotary solenoid is mount- ed above theshown in Fig. 7-9 is a rotary solenoid which is a part This

  11. A Bright Idea: New Efficiency Standards for Incandescent and Fluorescent

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:Financing ToolInternationalReportOffice | DepartmentVery1, in: Statement of Dr.26Former|A

  12. 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 Data Center Home Page on Delicious Rank EERE:FinancingPetroleum Based| Department ofRefrigeratorsDepartmentEP9425

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

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE: Alternative Fuelsof Energy ServicesContracting OversightEMSHome

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

    Office of Scientific and Technical Information (OSTI)

    contributions to classical and quantum theories of laser radiation and quantum optics, and to the proper interpretation of non-relativistic quantum mechanics. ... The...

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

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power AdministrationRobust,Field-effectWorking WithTelecentricNCubicthe FOIA? TheWildlifeWilliam H.Williams,

  16. 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 on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIXsource History ViewInformationWinds Jump to: navigation, searchLakota RidgeIIILamb

  17. Advanced Manufacture of Reflectors (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2012-09-01

    The University of Arizona is one of the 2012 SunShot CSP R&D awardees for their advanced collectors. This fact sheet explains the motivation, description, and impact of the project.

  18. Project Profile: Advanced Manufacture of Reflectors | Department...

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

    that creates very precise mirrors in a variety of shapes. The Photo of a man standing next to a table holding a large silver, square-shaped reflective material. focus is...

  19. Optical Reflectance Measurements for Commonly Used Reflectors

    E-Print Network [OSTI]

    Janecek, Petr Martin

    2009-01-01

    for polytetrafluoroethylene (PTFE) tape and titanium dioxidetypes of polytetrafluoroethylene (PTFE) tapes, a well-knownIL] and a 90 µm thick glossy PTFE tape (unknown origin). We

  20. Solar module having reflector between cells

    DOE Patents [OSTI]

    Kardauskas, Michael J. (Billerica, MA)

    1999-01-01

    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.

  1. Optical Reflectance Measurements for Commonly Used Reflectors

    E-Print Network [OSTI]

    Janecek, Petr Martin

    2009-01-01

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

  2. 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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power AdministrationRobust,Field-effectWorking With U.S.Week Day Year(activeInforumMILC&inDepartmentReport) |The

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

    SciTech Connect (OSTI)

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

    2010-09-30

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

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

    SciTech Connect (OSTI)

    Parker, Steven A.; Beeson, Tracy A.

    2009-11-20

    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.

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

    E-Print Network [OSTI]

    Singer, Scott

    2012-01-01

    chip’s membrane backlit by lightbulb using 500 nm ?lter. Inconnection. A small lightbulb is placed in the backside ofchip’s membrane backlit by lightbulb using 500 nm ?lter. In

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

    E-Print Network [OSTI]

    Singer, Scott

    2012-01-01

    Systems Nanofabrication Cleanroom (ISNC) in the Californiawafer. Place the wafer on cleanroom paper and, using a Q-lifto?, place the wafer on a cleanroom paper towel and use a

  7. High Spatial Resolution Laser Cavity Extinction and Laser Induced Incandescence in Low Soot Producing Flames

    E-Print Network [OSTI]

    Tian, B.; Gao, Y.; Balusamy, S.; Hochgreb, S.

    2015-06-26

    1 Introduction Soot particles generated from combustion are both a significant atmo- spheric pollutant, as well as a contributor to climate change [1–4]. Many techniques have therefore been developed to measure soot particles from a variety... ,34] is that the present technique does not rely on pulsed, shot-to-shot measurements, but rather a low power, low cost CW laser. This allows for a much simpler, less expensive system, which does not require a fast response detector and signal receiver capable of nanosec...

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

    SciTech Connect (OSTI)

    Timothy B. Onasch

    2011-10-20

    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).

  9. CALiPER Benchmark Report: Performance of Halogen Incandescent MR16 Lamps and LED Replacement

    SciTech Connect (OSTI)

    None

    2008-11-01

    This benchmark report addresses the halogen MR16 lamp and its commercially available light-emitting diode (LED) replacements.

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

    E-Print Network [OSTI]

    Singer, Scott

    2012-01-01

    Graphene As graphene is a zero-gap semiconductor, transportsemiconductor technology. The performance of grapheneGraphene, an atomically thin sheet of sp 2 bonded carbon, is a zero-bandgap semiconductor

  11. Factors affecting prices of lamb and sheep 

    E-Print Network [OSTI]

    Coston, Ocie

    1937-01-01

    &king Points . . VI. The Effects of Change in Prices Upon sheep Population on Farms ~ ~ ~ ~ a ~ ~ ~ a ~ ~ ~ ~ ~ ~ 84 VIX. The Economic lelations Between Price and D%, 2)nd and ' Upp+ ~ ~ ~ ~ ~ ~ 4 ~ ~ ~ ~ ~ ~ ~ ~ 58 VXII ~ Ma)or Paotors . .ffeoting..., United -'tatea Department of Agriculture, 1925. pa 877 ~ Ntlltona 55 OTHFR l+AIQcET REcElPT5 10 1955 19RR 19' 1955 1959 1980 1951 195R 1955 1954 1955 FIQUB-' lo TfK iiNNU~L NUNN'2t Ot' . ". KKKP MMKETKD IN NINE ?C, ZOR MARK:;P, ' AND TOT J...

  12. Analysis of optimum Lamb wave tuning

    E-Print Network [OSTI]

    Shi, Yijun, 1970-

    2002-01-01

    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 ...

  13. Quality of vacuum packaged lamb retail cuts 

    E-Print Network [OSTI]

    Wanstedt, Kristen Gae

    1982-01-01

    packaged wholesale cuts prior to cutting and packaging them 1n HOB f1lm did not affect muscle color. Chops and steaks packaged in PVC film became darker 1n color with increas1ng display time. Surface discoloration was not affected by the use... of previously vacuum packaged (PVP) cuts when packaged in HOB film but 1ncreased when packaged in PVC f1lm. The use of PVP cuts did not affect the overall appearance of rib or loin chops but HOB f1lm-pack- aged leg chops from PVP cuts had lower overall...

  14. Marketing Sheep and Lambs in Texas. 

    E-Print Network [OSTI]

    Winn, John H.; Miller, Jarvis E.

    1957-01-01

    ,200 750 1,056 525 912 536 1,482 1,118 1,458 922 1,260 913 1,295 840 1,434 874 1,580 1,198 1,560 1,070 1,558 1,356 1,223 1,000 1,371 1,087 1,219 1,056 1,081 813 904 668 1,077 817 1,191 863 1,103 510 794 527 753 509 963 419 865 346 656...

  15. Grain Sorghums Versus Corn for Fattening Lambs 

    E-Print Network [OSTI]

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

    1922-01-01

    she reach first place in the production of sheep. At the same time an increasing West Texas acreage is being planted in grain sor- ghums during each succeeding year, and the farmers producing these crops are demanding information and assistance... producing 60,000,000 bushels of the grain sor- ghums. This is conceded to be only a partial showing of the possible production because the area planted in them is limited to the popular annual estimate of the farmers as to how much production the market...

  16. Design & Manufacture of Stiffened Spring-Back Reflector Demonstrator

    E-Print Network [OSTI]

    Soykasap, Omer

    woven Carbon Fiber Reinforced Plastic (CFRP) demon- strator. Although the SSBR concept was originally 100 grams. Introduction The SSBR concept is based on a thin flexible carbon fiber reinforced plastic

  17. AIAA 2004-1574 New Deployable Reflector Concept

    E-Print Network [OSTI]

    Soykasap, Omer

    that comprises curved surfaces formed from thin sheets of carbon-fiber-reinforced-plastic (CFRP) connected solid" from thin, curved sheets of carbon-fiber-reinforced-plastic (CFRP), connected by flexible hinges

  18. Thin-Shell Deployable Reflectors with Collapsible Stiffeners: Experiments and

    E-Print Network [OSTI]

    Pellegrino, Sergio

    suitable for high gain antennas, mirrors, etc. It is made as a single piece, for example by curing carbon-fiber of two different plastics. Both folding experiments and vibration tests in the fully deployed

  19. 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.

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

    DOE Patents [OSTI]

    Pelton, B.A.; Siminovitch, M.

    1997-07-29

    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.

  1. Effects of reflector augmentation on fixed polycrystalline arrays

    SciTech Connect (OSTI)

    Harrison, T.D.

    1984-05-01

    The 130-kW photovoltaic system located on the roof of the Omniplex in Oklahoma City, OK was designed with mirrors to increase the amount of solar radiation that strikes the modules during the intervals between spring and autumn equinox and so increases the power generated by the array. The design intent was to produce 130 kW at noon on summer solstice; however at no time has the array produced more than 100 kW. Sandia National Laboratories, Albuquerque, designed a multiphase experiment to determine the reason that the array failed to meet the design intent. This report describes the experiment, the results obtained, and the lessons learned.

  2. Thin-Shell Deployable Reflectors with Collapsible Stiffeners

    E-Print Network [OSTI]

    Pellegrino, Sergio

    of high-modulus, ultra-thin composite materials. An inherent, and significant limitation of this approach is that these structures remain "floppy" in their deployed configuration. This paper presents a general concept breadth of rectangular cross-section c radius of coiling D plate bending stiffness pg. 9 and 10, aperture

  3. Effect of implementation of a Bragg reflector in the photonic

    E-Print Network [OSTI]

    consists of an InP photonic crystal slab including four InAsP quantum wells, a SiO2 bonding layer-temperature InAs/InP Quantum Dots laser operat

  4. Project Profile: High Performance Reflector Panels for CSP Assemblies

    Broader source: Energy.gov [DOE]

    PPG, under the CSP R&D FOA, is aiming to develop and commercialize large-area second-surface glass mirrors that are superior in value, cost, and performance, to existing mirrors on the market today.

  5. 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.

  6. RUBIDIUM VAPOR CELL WITH INTEGRATED NONMETALLIC MULTILAYER REFLECTORS

    E-Print Network [OSTI]

    Chen, Zhongping

    and demonstrated by use of a variety of innovative techniques, including wafer level glass blowing [3]. In many

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

    E-Print Network [OSTI]

    is a concept for a large-scale solar thermal power plant. Its goal is to provide high-pressure steam from financed by an Australian power station, who will use the generated steam to displace coal consumption. This approach allows an affordable entry into renewable energy for existing coal-power producers, and allows

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

    SciTech Connect (OSTI)

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

    2013-03-28

    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.

  9. Recovery Act: Low-Cost, Highly Lambertian Reflector Composite...

    Office of Scientific and Technical Information (OSTI)

    of coatings development using particle size reduction techniques and preparation of coating solutions with a broad range of particle types. The research explored scale-up of...

  10. Code division multiple access signaling for modulated reflector technology

    DOE Patents [OSTI]

    Briles, Scott D. (Los Alamos, NM)

    2012-05-01

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

  11. Imaging with Spherically Bent Crystals or Reflectors (Technical Report) |

    Office of Scientific and Technical Information (OSTI)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of NaturalDukeWakefieldSulfate Reducing(Journal Article)lasers(Journal Article) |SciTechphysical experiments,UCoGa5SciTech

  12. Imaging with Spherically Bent Crystals or Reflectors (Technical Report) |

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration would likeUniverse (JournalvivoHighHusseinSOLICWfATION/MODIFICATlONImagingLaboratory

  13. Soot particle size measurements in laminar premixed ethylene flames with laser-induced incandescence and scanning mobility particle sizer

    E-Print Network [OSTI]

    Yin, Chung-Yuan

    2009-01-01

    Size Measurements in Laminar Premixed Ethylene Flames withof soot aggregate sampled from a laminar acetyleneSize Measurements in Laminar Premixed Ethylene Flames with

  14. Soot particle size measurements in laminar premixed ethylene flames with laser-induced incandescence and scanning mobility particle sizer

    E-Print Network [OSTI]

    Yin, Chung-Yuan

    2009-01-01

    Methane, Propane, and Ethylene Diffusion Flames,” CombustionPropane Diffusion Flames,” Applied Optics 40 (15): 2443-2452 (2001) Haynes BS, Wagner HG, “Soot Formation,” Progress in Energy and Combustion

  15. Non-contact feature detection using ultrasonic Lamb waves

    DOE Patents [OSTI]

    Sinha, Dipen N. (Los Alamos, NM)

    2011-06-28

    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.

  16. Slaughter and carcass characteristics of finewool vs crossbred lambs 

    E-Print Network [OSTI]

    Bland, Bobby J

    1960-01-01

    Thichness of Ret Cser Loin Rye Caresse Credo Lan~ of Rody Iangth of Loin Carcass Kt. kvaesge Sadly Csin ~ 676es ~ 613ee ~ 631ee ~ 7SRee ~ 783es ~ 778ee . 3$6se . RCSac ~ 6LSse ~ 666se eS67eo ~ Sggse ~ 731eo ~ 633ek 64See ~ 666se...

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

    E-Print Network [OSTI]

    Kapp, Gabrielle Maria

    1995-01-01

    Forty 8-mo-old Rambouillet wethers were blocked by weight and temperament and randomly assigned to one of four treatments (n = 10 per treatment): housed in metabolism crates and fed a complete feed restricted to 3% of BW (CR); group-housed in a pen...

  18. Consumer Perception of Beef, Pork, Lamb, Chicken, and Fish 

    E-Print Network [OSTI]

    Grimshaw, Kaitlyn E

    2013-08-05

    One of the greatest challenges to developing successful marketing strategies in the food sector is gaining a better understanding of the diversity of consumer needs (Onwezen et al., 2012). It is important to understand ...

  19. 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

    2010-01-01

    field is given by ?Ea = ? ? k h??k 2 4piN 3h? ? ? ? ?=b?,c? ?a? |da? |2 ?2a? ? ? 2 k ? ?ab|dab|2 ?2ab ? ? 2 k ? ? . (33) As the box contains only one atom, we have NV = 1. After summing over k and recalling that |pal|2 = m2?2al... by Milonni [4]. In this approach, it is argued that the presence of an atom inside a box leads to a change in the resonant frequencies from ?k to ?k/n(?k), where n(?k) is the refractive index at ?k . This leads to a change in the zero-point energy due...

  20. Radiative recoil correction to the Lamb shift Krzysztof Pachucki

    E-Print Network [OSTI]

    Pachucki, Krzysztof

    analyzed the nuclear self­energy contribution and the corresponding definition of the nuclear mean square of the radiative recoil correction to hydrogenic energy levels in m 2 M ff (Z ff) 5 n 3 order is presented. The method bases on evaluation of the proton kinetic energy term on the electron state. The obtained result

  1. Predicting cutability of lamb carcasses from easily obtainable carcass measurements 

    E-Print Network [OSTI]

    Oliver, William McCoy

    1967-01-01

    to style and content by: t, . C, / ~ C, - /4 Cljaiiiaan of Conic tl. ee He a d o Ti e e a r t ii: e n i ( ~~g~g~ cM e lani oar An~~est 196/ 428807 AC KNOWLE D GME tiT S The staff and personnel of the Meats Laboratory of the Animal Science... snail be eternally grateful. W. M. Oliver August, 1967 TABLE OF COXTEJ'JTS Chapter IETRO DUCT I 0 && . II OBJECTl'&9"'. S. RZ I E'v' OF I, ITERATURE . Pea?urea of Carcass Merit Variables Used for Predic ion TV VI Differences in Cutabiiity...

  2. 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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration wouldMass map shines light on darkMicroorganismsnow widely using inCopyright:819Phase

  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 on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIXsource History ViewInformationWinds Jump to: navigation, searchLakota RidgeIII

  4. EnergySmart Schools Tips: Retrofitting, Operating, and Maintaining...

    Energy Savers [EERE]

    less than three years. * Replace conventional incandescent exit signs with LED (light-emitting diode) exit signs. LEDs use at least 75 percent less energy than incandescent bulbs....

  5. 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

  6. Photo: D. Stevenson and C. Conway/Beckman Institute/University of Illinois An inorganic LED display printed on a flexible substrate bends without breaking

    E-Print Network [OSTI]

    Rogers, John A.

    cameras. Conventional inorganic LEDs, which are poised to put incandescent and fluorescent lightbulbs out

  7. 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

  8. 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

  9. Phys. Med. Biol. 43 (1998) 24072412. Printed in the UK PII: S0031-9155(98)90934-4 Effects of read-out light sources and ambient light on

    E-Print Network [OSTI]

    Yu, Peter K.N.

    1998-01-01

    laser, light emitting diode (LED) and incandescent read-out light sources produce an equivalent dose

  10. Assessment of optical performance of three non-tracking, non-imaging, external compound parabolic concentrators designed for high temperature solar thermal collector units

    E-Print Network [OSTI]

    Cisneros, Jesus

    2010-01-01

    4 Ideal Solar Reflector Design……………………………………………5 Designand ideal solar reflector design. Sections three and four1998a). Ideal Solar Reflector Design The ideal reflector

  11. ,,,"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 on Google Bookmark EERE: AlternativeMonthly","10/2015"Monthly","10/2015" ,"Release7 Relative Standard Errors for Table 5.7;" " Unit:8977.8.38.

  12. ,,,"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 on Google Bookmark EERE: AlternativeMonthly","10/2015"Monthly","10/2015" ,"Release7 Relative Standard Errors for Table 5.7;" "

  13. 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

  14. Doubling the optical efficiency of a chiral liquid crystal laser using a reflector

    E-Print Network [OSTI]

    Wu, Shin-Tson

    and other materials as well sharing a similar chiral PBG structure as elastomers7 and polymers8 have been advantages and the laser beam from another side is wasted. We venture to recycle the laser by adding a mirror

  15. WhiteOptics' Low-Cost Reflector Composite Boosts LED Fixture Efficiency

    Office of Energy Efficiency and Renewable Energy (EERE)

    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.

  16. Fabrication of crystalline Bragg reflectors for high power and integrated optical applications by

    E-Print Network [OSTI]

    Sóbester, András

    conditions, as well as having the additional benefit of use in hybrid laser crystals (e.g. integrated mirrors of fabrication and to allow mixed layer growth for grating strength apodisation. Substrates were heated via CO2 including chamber pumping and venting; this technique is hence of particular interest for rapid prototyping

  17. ORALLOY (93.2 235U) METAL CYLINDER WITH BERYLLIUM TOP REFLECTOR

    SciTech Connect (OSTI)

    John D. Bess; Leland M. Montierth; Raymond Reed; John T. Mihalczo

    2010-09-01

    A variety of critical experiments were constructed of enriched uranium metal during the 1960s and 1970s at the Oak Ridge Critical Experiments Facility (ORCEF) in support of criticality safety operations at the Y-12 Plant. The purposes of these experiments included the evaluation of storage, casting, and handling limits for the Y-12 Plant and providing data for verification of calculation methods and cross-sections for nuclear criticality safety applications. These included solid cylinders of various diameters, annuli of various inner and outer diameters, two and three interacting cylinders of various diameters, and graphite and polyethylene reflected cylinders and annuli. Of the hundreds of delayed critical experiments, one experiment was comprised of a stack of approximately 7-inch-diameter metal discs. The bottom of the stack consisted of uranium with an approximate height of 4-1/8 inches. The top of the stack consisted of beryllium with an approximate height of 5-9/16 inches. This experiment was performed on August 20, 1963 by J. T. Mihalczo and R. G. Taylor (Ref. 1) with accompanying logbook. Both detailed and simplified model specifications are provided in this evaluation. This fast-spectra experiment was determined to represent an acceptable benchmark. The calculated eigenvalues for both the detailed and simple models are within approximately 0.5% of the benchmark values, but significantly greater than 3s from the benchmark value because the uncertainty in the benchmark is very small: ±0.0002 (1s). There is significant variability between results using different neutron cross section libraries, the greatest being a ?keff of ~0.65% . Unreflected and unmoderated experiments with the same highly enriched uranium metal parts were performed at the Oak Ridge Critical Experiments Facility in the 1960s and are evaluated in HEU MET FAST 051. Thin graphite reflected (2 inches or less) experiments also using the same highly enriched uranium metal parts are evaluated in HEU MET FAST 071. Polyethylene-reflected configurations are evaluated in HEU-MET-FAST-076. Highly enriched metal annuli with beryllium cores are evaluated in HEU-MET-FAST-059.

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

    E-Print Network [OSTI]

    Densmore, Arthur Charles

    2014-01-01

    Wavelengths During the 1988 Solar Conjunction of Voyager 2,"143] J. A. Kennewell, “Solar radio interference to satelliteSeck, and Y. Rahmat-Samii, “Ka-Band Solar Flux Study for G/T

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

    E-Print Network [OSTI]

    Kim, Ryoung-Han

    2006-04-12

    crystal if the light is incident along the optic z-axis. D. Electrooptic Effect The propagation of an electro-magnetic wave inside a medium is determined by the refractive index of the medium. The electrooptic effect is the change of refractive...

  20. 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.

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

    SciTech Connect (OSTI)

    John D. Bess

    2010-06-01

    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.

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

    E-Print Network [OSTI]

    Boyer, Edmond

    -tracing procedure in complex 2D and 3D structures. The first method, called Fresnel vol- ume ray tracing Cervený into the wave reflection process, this study might have significant implications for seismic interpretation using amplitude-variation-with-angle methodologies. INTRODUCTION The basis of many seismic studies

  3. Seismic reflector imaging using internal multiples with Marchenko-type equations

    E-Print Network [OSTI]

    Snieder, Roel

    vertical seismic profile data, thereby redatuming the source to the focus depth. Decon- volving the upgoing. (2012) used the idea to retrieve a virtual vertical seismic profile (VSP) with the virtual source inside by the downgoing vertical seismic pro- file data redatums the receiver to the focus depth and gives the desired

  4. Low-Cost Self-Cleaning Reflector Coatings for CSP Collectors- FY13 Q2

    Office of Energy Efficiency and Renewable Energy (EERE)

    This document summarizes the progress of this ORNL project, funded by SunShot, for the second quarter of fiscal year 2013.

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

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

    and solvents that can be applied to large area surfaces using simple low-cost spray coating techniques developed by the commercial paint industry. Innovation This project...

  6. 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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 OutreachProductswsicloudwsicloudden DocumentationAccommodationsRegisterLithium-basedNuclear Reactor

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

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious RankADVANCED MANUFACTURINGEnergy Bills andOrderNATIONALofDefine ReviewImpactDepartmentGenerationCollectors |

  8. Project Profile: Next-Generation Low-Cost Reflector | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious RankADVANCED MANUFACTURINGEnergy Bills andOrderNATIONALofDefineEnergy National Solar Thermal

  9. 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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of NaturalDukeWakefield MunicipalTechnical Report:Speeding access toSmall ReactorRaymond Davis, Jr., SolarReport) | SciTechLED

  10. 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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of NaturalDukeWakefieldSulfateSciTech ConnectSpeedingConnect(Conference) | SciTechelectrodes.Report) | SciTechLED

  11. Grain Sorghums Versus Corn for Fattening Lambs: Fourth and Fifth Experiments: Including a General Summary of Five Years Lamb Feeding Investigations. 

    E-Print Network [OSTI]

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

    1928-01-01

    .54 .................. 340 ....... 358 ........ 60 60 59.9 84.8 .41 Whole kafir.. 1.39 ........ 1.74 .................. 335 ........ 421 . .:. .... --- ------ -ppp-p--- --- .... I .... 20 83 60.2 90.1 .36 Shelledcorn.. 1.3 .16 1.02 Cane.. .9 353 43 283 248 Kansas..., Circular 20 83 60.5 88.8 .34 Whole kafir. 1.3 .16 1.02 Cane.. .91 379 46 299 266 1022-23 No. 109.. .. 20 83 59.1 87.3 .34 Kafir chops.. I .3 .16 1.02 Cane.. .... .89 382 46 301 263 20 83 62.6 90.8 .34 Iiafir heads.. 2.05 .16 .96 Cane.. .... .79 602 46 282...

  12. 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.

    1992-12-01

    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.

  13. 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.

    1992-12-01

    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.

  14. Max Tech Appliance Design: Potential for Maximizing U.S. Energy Savings through Standards

    E-Print Network [OSTI]

    Garbesi, Karina

    2011-01-01

    fluorescent and lighting dominantly incandescent. LED)LED incandescent efficacies are expected to increase lightingLED Heat pump Heat pump Heat pump d Energy Use (TWh) a Lighting (

  15. Program Potential: Estimates of Federal Energy Cost Savings from Energy Efficient Procurement

    E-Print Network [OSTI]

    Taylor, Margaret

    2014-01-01

    LED Lighting .Substitute Products  LED Lighting  Currently, incandescentCFLs. Alternatively, LED lighting could potentially take on

  16. Wide-Area Imaging of Ultrasonic Lamb Wave Fields by Electronic Speckle Pattern Interferometry

    E-Print Network [OSTI]

    Mast, T. Douglas

    waves. C. Henning and D. Mewes'41 used double pulsed holographic interferometry to visualize ultrasonic Hardware Ill · Newoort Beach, California · March 1999 297 SPIE Vol. 3586 · 0277-786X199/$lO.OO #12;and

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

    E-Print Network [OSTI]

    Poe, Julie Hamilton

    1984-01-01

    concentration than plasma (Edelman and Leibman, 1959). Intracellular K exchanges at different rates in tissues and is in a constant state of flux. Potassium slowly equilibrates in erythrocytes (Edelman and Leibman, 1959) suggesting that erythrocyte K may... of exchangeable Mg within the sheep. Exchangeable pool size, Mg retention and plasma Mg concentration were unaffected by treatment. Potassium supplementation significantly depressed intercompartmental Mg flux. Addition of potassium chloride depressed Mg...

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

    E-Print Network [OSTI]

    Heileman, Gregory L.

    ; cloud security; service level agreements; access control I. INTRODUCTION The characteristics of cloud providers to optimize resource allocation while ensuring safety and security of cloud users' data. A correct automated reasoning of policies with respect to the underlying cloud security infrastructure. Based

  19. CHOOSING AN APPROPRIATE SENSOR FOR THE DESIGNED SHM SYSTEM BASED ON LAMB WAVES

    E-Print Network [OSTI]

    . JANUSZ OCHONSKI Department of Robotics and Mechatronics AGH - University of Science and Technology Al and Mechatronics AGH - University of Science and Technology Al. Mickiewicza 30, 30-059 Kraków lukasz.ambrozinski@agh.edu.pl ANDRZEJ KLEPKA Department of Robotics and Mechatronics AGH - University of Science and Technology Al

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

    E-Print Network [OSTI]

    Tatum, Joseph Daryl

    1976-01-01

    treatments -- vacuum pack- aging (VPI), heat seal closure; vacuum packaging (VPII) clip seal closure; carbon dioxide (C02) chilling, poly- ethylene bag; polyvinyl chlor1de (PVC) film wrapping- and stored for 7, 14, 21 or 28 days; while intact carcasses..., Wholesale cuts were randomly assigned to one of four treatments ? vacuum pack- aging (VPI), heat seal closure; vacuum packaging (VPII) clip seal closure; carbon dioxide (C02) chilling, poly- ethylene bag; polyvinyl chloride (PVC) film wrapping...

  1. 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

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

    E-Print Network [OSTI]

    Kreinovich, Vladik

    Paso, El Paso, TX 79968, USA contact email vladik@cs.utep.edu Abstract One of the most efficient non-destructive strength while the outside layer guarantees protection against the surrounding media. To apply non-destructive testing to materials, we must know their elastic characteristics. Since composite ma- terials are often

  3. Regulation of ESR1 in Kisspeptin Neurons during Reproductive Maturation in Ewe Lambs 

    E-Print Network [OSTI]

    Bedenbaugh, Michelle Nichole

    2014-08-28

    The pubertal initiation of a high-frequency, pulsatile release of gonadotropin-releasing hormone (GnRH) involves an escape from estradiol negative feedback. Kisspeptin neurons are proposed to mediate the effects of estradiol, ...

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

    E-Print Network [OSTI]

    Redmond, Jeremy Scott

    2012-02-14

    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, ...

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

    E-Print Network [OSTI]

    Hudman, Donald Barton

    1954-01-01

    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...

  6. submitted to Geophys. J. Int. Background Lamb waves in the Earth's atmosphere

    E-Print Network [OSTI]

    Nishida, Kiwamu

    decay exponen- tially with altitude, they are concentrated in the troposphere. Therefore, these waves-3 [s/m] -5 0 5 Power/slowness2 [Pa2 m2 s-2 ] d Figure 1. a, Location map of the 305 stations used (Donn & Shaw 1967), the 1970 solar eclipse (e.g. Chimonas 1973) and the huge earthquakes (e.g. Mikumo

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

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    and contained 40% (DM basis) concentrate and 60% hay and/or by product: GMo, GM30 and GM60 in the first matter (OM), gross energy (GE), crude protein (CP) and NDF in diets GMO, GM3o and GM60 decreased (P daily gain than the GMO diet (-98 g/d), while GM30 had an intermediate gain. In the MC diets the best

  8. 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 on Google Bookmark EERE: Alternative Fuels Data Center Home Page onRAPID/Geothermal/Exploration/Colorado <RAPID/Geothermal/WaterEnergyRedfield1989) Jump to:| Open1979) |Al., 2012) |

  9. Running Coulomb potential and Lamb shift in QCD (Journal Article) | SciTech

    Office of Scientific and Technical Information (OSTI)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of NaturalDukeWakefieldSulfateSciTechtail. (Conference) | SciTech Connect Robust emergent(Journallasers onConnect

  10. 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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power AdministrationRobust,Field-effectWorking With U.S. Coal StocksSuppliersmillion Technical SessionsM.P.S.T.

  11. Application of conical 90-degree reflectors for solving the problem of mirror alignment in terahertz-range lasers

    SciTech Connect (OSTI)

    Radionov, V P; Kiselev, V K

    2014-10-29

    We report a study of the conical mirrors with an apex angle of 90° in the resonator of the gas-discharge HCN laser with the radiation wavelength of 337 ?m (0.89 THz). Experimental results have shown that such mirrors do not require precise alignment. This makes it possible to improve the radiation stability, significantly simplify the construction of laser and reduce the complexity of its maintenance. (laser applications and other topics in quantum electronics)

  12. 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 ...

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

    E-Print Network [OSTI]

    Belau, Leonid

    2010-01-01

    Park, Physical Chemistry Chemical Y.B. He, et al. , JournalChemical Effect of Dry and Wet Cleaning of the Ru ProtectiveBerkeley, California 94720 Chemical Sciences Division,

  14. A Dual-Band Retrodirective Reflector Array on Paper Utilizing Substrate Integrated Waveguide (SIW) and Inkjet Printing

    E-Print Network [OSTI]

    Tentzeris, Manos

    .aubert@enseeiht.fr** Apostolos Georgiadis Centre Tecnologic de Telecomunicacions de Catalunya, Catalunya, Spain ageorgiadis

  15. A Novel Dual-Band Retro-directive Reflector Array on Paper Utilizing Substrate Integrated Waveguide (SIW) and Inkjet Printing

    E-Print Network [OSTI]

    Tentzeris, Manos

    Tecnologic de Telecomunicacions de Catalunya (CTTC), Catalunya, Spain Abstract -- In this paper, we propose

  16. GEOPHYSICS. VOL. 56, NO 4 (APRIL 1991); P. 565~571. 8 FIGS. Array analysis of reflector heterogeneity

    E-Print Network [OSTI]

    reflection surveys. For example, COCORP surveyshave found bright spotsinterpreted to indicate midcrustal

  17. Effects of prenatal shearing of ewes and calf genotype on cold tolerance of newborn ruminants 

    E-Print Network [OSTI]

    Falck, Stephanie Joy

    2001-01-01

    Weather-related losses are the second leading cause of death for both calves and lambs. One management practice used to reduce lamb losses due to cold exposure is shearing pregnant ewes. Research has shown that lambs ...

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

    E-Print Network [OSTI]

    Ragsdale, Bobby Joe

    1957-01-01

    ? 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...

  19. Geometric approach to detecting and locating cracks in thin plates by Lamb wave reflection: case of moving transducer

    E-Print Network [OSTI]

    Kreinovich, Vladik

    of structures and mechanisms, such as buildings, heavy machinery, pipes, offshore structures and aircrafts of deterioration. This deterioration can manifest in forms of internal cracking, flaws, corrosion in metallic parts

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

    E-Print Network [OSTI]

    Lin, Chih-Ming

    2013-01-01

    in piezoelectric layered media with some applications,” J.piezoelectric-on- silicon resonators for high-frequency reference oscillator applications,”piezoelectric materials have been used in commercial applications

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

    E-Print Network [OSTI]

    Lin, Chih-Ming

    2013-01-01

    10 to 10 dBm. Figure 5–30 shows the evolution of the A–fto 10 dBm. Figure 5–29 shows the excerpt of the evolution of

  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

    2013-01-01

    a promising microelectromechanical systems (MEMS) resonatorButterworth-Van Dyke MEMS Microelectromechanical systems MHzof microelectromechanical systems (MEMS) technology,

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

    E-Print Network [OSTI]

    Lin, Chih-Ming

    2013-01-01

    layer and (b) 400-nm-thick PECVD oxide layer after LPCVD LTOtemperature of the oxide layer would cause some damage onvapor deposition (PECVD) oxide layer at a low temperature (

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

    E-Print Network [OSTI]

    Lin, Chih-Ming

    2013-01-01

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

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

    E-Print Network [OSTI]

    Lin, Chih-Ming

    2013-01-01

    fast and low-power microelectromechanical system-based non-Silicon carbide for microelectromechanical systems,” Int.In turn a promising microelectromechanical systems (MEMS)

  6. Received 25 Oct 2013 | Accepted 12 May 2014 | Published 17 Jun 2014 Lamb-Dicke spectroscopy of atoms in

    E-Print Network [OSTI]

    Nori, Franco

    . 5 Department of Engineering "Enzo Ferrari", University of Modena and Reggio Emilia, Modena I-41125

  7. Reconstruction of Rayleigh-Lamb dispersion spectrum based on noise obtained from an air-jet forcing

    E-Print Network [OSTI]

    Eric Larose; Philippe Roux; Michel Campillo

    2007-10-01

    The time-domain cross-correlation of incoherent and random noise recorded by a series of passive sensors contains the impulse response of the medium between these sensors. By using noise generated by a can of compressed air sprayed on the surface of a plexiglass plate, we are able to reconstruct not only the time of flight but the whole waveforms between the sensors. From the reconstruction of the direct $A_0$ and $S_0$ waves, we derive the dispersion curves of the flexural waves, thus estimating the mechanical properties of the material without a conventional electromechanical source. The dense array of receivers employed here allow a precise frequency-wavenumber study of flexural waves, along with a thorough evaluation of the rate of convergence of the correlation with respect to the record length, the frequency, and the distance between the receivers. The reconstruction of the actual amplitude and attenuation of the impulse response is also addressed in this paper.

  8. General Service LED Lamps

    Broader source: Energy.gov [DOE]

    A U.S. DOE SSL technology fact sheet that compares general service LED light bulbs with incandescent and CFL bulbs.

  9. Healthcare Energy: Spotlight on Lighting and Other Electric Loads...

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

    Lighting and Other Electric Loads Healthcare Energy: Spotlight on Lighting and Other Electric Loads Compact fluorescent, light-emitting diode, and energy-saving incandescent light...

  10. New Lighting Standards Began in 2012 | Department of Energy

    Office of Environmental Management (EM)

    save you about 50 per year when you replace 15 traditional incandescent bulbs in your home. Measuring Light in Lumens The new efficiency standards require lightbulbs to consume...

  11. Optimizing Energy Savings from Direct-DC in U.S. Residential Buildings

    E-Print Network [OSTI]

    Garbesi, Karina

    2012-01-01

    ballast fluorescent and LED lighting, which are DC- internalmotors [7]. Fluorescent and LED lighting uses one-quarter ofbest technology Lighting Incandescent, fluorescent, LED

  12. Fluorescent Lighting | Department of Energy

    Office of Environmental Management (EM)

    - by far the most common form of fluorescent lighting but rarely found in residential buildings -- are much more energy efficient than incandescent lamps and are ideally suited...

  13. Lesson 13, Section 2.2 Part 2

    E-Print Network [OSTI]

    B Compact ?uorescent lightbulbs (CFL) can be used to most places that conventional incandescent bulbs are, but use a ?'action of the electricity. This table lists.

  14. Lesson11.doc

    E-Print Network [OSTI]

    B Compact fluorescent lightbulbs (CFL) can be used to most places that conventional incandescent bulbs are, but use a fraction of the electricity. This table lists ...

  15. Radiative Heat Transfer in Enhanced Hydrogen Outgassing of Glass

    E-Print Network [OSTI]

    Kitamura, Rei; Pilon, Laurent

    2009-01-01

    with lamp heating than with furnace heating and (2) hydrogensilica tube and heated in a furnace or by an incandescentan incandescent lamp than within furnace. Here, sample and

  16. DOE Announces Selections for SSL Core Technology and Product...

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

    seeks to develop a small form factor retrofit lamp consisting of a light engine, optics, drive electronics, and thermal management. The lamp is suitable for incandescent or...

  17. Common Industrial Lighting Upgrade Technologies

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

    is used to regulate the ongoing electricity provided to the lamp. COMMON INDUSTRIAL LIGHTING UPGRADE TECHNOLOGIES Due to the phase-out of the incandescent bulb and magnetic...

  18. Optimizing Energy Savings from Direct-DC in U.S. Residential Buildings

    E-Print Network [OSTI]

    Garbesi, Karina

    2012-01-01

    motors [7]. Fluorescent and LED lighting uses one-quarter ofballast fluorescent and LED lighting, which are DC- internalbest technology Lighting Incandescent, fluorescent, LED

  19. 2002 Federal Energy and Water Management Award Winners | Department...

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

    direct digital control installation to more simple measures, such as installing light-emitting diode technology to replace incandescent lighting in fire alarm transmission boxes....

  20. Peering into a Quantum Well | U.S. DOE Office of Science (SC...

    Office of Science (SC) Website

    have unearthed droop's elusive cause, illuminating a key barrier to this potentially energy-saving alternative to conventional incandescent and fluorescent lighting. At issue,...

  1. Types of Lighting | Department of Energy

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

    selection. Types of lighting include: Fluorescent Incandescent Outdoor solar Light-emitting diode (LED) Also learn how energy-efficient lightbulbs compare to traditional...

  2. Life-Cycle Assessment of Energy and Environmental Impacts of...

    Office of Scientific and Technical Information (OSTI)

    We then conducted a comparative LCA, looking at the impacts associated with the Philips Master LEDbulb and comparing those to a CFL and an incandescent lamp. The comparison...

  3. Life-Cycle Assessment of Energy and Environmental Impacts of...

    Office of Scientific and Technical Information (OSTI)

    Hollomon, Brad; Dillon, Heather E.; Snowden-Swan, Lesley J. LED; light-emitting diode; CFL; incandescent; halogen; lamp; bulb; TCLP; STLC; TTLC; WET; hazardous waste; electronic...

  4. "Title","Creator/Author","Publication Date","OSTI Identifier...

    Office of Scientific and Technical Information (OSTI)

    National Laboratory (PNNL), Richland, WA (US)","USDOE","LED; light-emitting diode; CFL; incandescent; halogen; lamp; bulb; TCLP; STLC; TTLC; WET; hazardous waste; electronic...

  5. 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...

  6. APPLIANCE STANDARDS

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

    Equipment General Service Incandescent Lamps General Service Fluorescent Lamps Small Electric Motors Electric Motors Water Heaters Furnace Fans Distribution Transformers Water...

  7. Design of anti-ring back reflectors for thin-film solar cells based on three-dimensional optical and electrical modeling

    SciTech Connect (OSTI)

    Hsiao, Hui-Hsin; Wu, Yuh-Renn, E-mail: yrwu@ntu.edu.tw [Graduate Institute of Photonics and Optoelectronics, National Taiwan University, Taipei, Taiwan (China); Chang, Hung-Chun [Graduate Institute of Photonics and Optoelectronics, Graduate Institute of Communication Engineering, and Department of Electrical Engineering, National Taiwan University, Taipei, Taiwan (China)

    2014-08-11

    The optical and electrical properties of a photonic-plasmonic nanostructure on the back contact of thin-film solar cells were investigated numerically through the three-dimensional (3D) finite-difference time-domain method and the 3D Poisson and drift-diffusion solver. The focusing effect and the Fabry-Perot resonances are identified as the main mechanisms for the enhancement of the optical generation rate as well as the short circuit current density. However, the surface topography of certain nanopattern structures is found to reduce the internal electrostatic field of the device, thus limiting charge collection. The optimized conditions for both optics and electronics have been analyzed in this paper.

  8. 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]

    in the deep crust. To simplify this analysis, recorded ampli- tudes are assumed to be reflections from weak in the Mojave Desert recorded deep reflections that show amplitude changes with offset. Both the 1985 Calcrust reflection which they believe can be traced to surface exposures, the geologic interpretation of middle

  9. Enhanced Thermal Stability of W-Ni-Al[subscript 2]O[subscript 3] Cermet-Based Spectrally Selective Solar Absorbers with W Infrared Reflectors

    E-Print Network [OSTI]

    Cao, Feng

    Solar thermal technologies such as solar hot water and concentrated solar power trough systems rely on spectrally selective solar absorbers. These solar absorbers are designed to efficiently absorb the sunlight while ...

  10. VUV-VIS optical characterization of Tetraphenyl-butadiene films on glass and specular reflector substrates from room to liquid Argon temperature

    E-Print Network [OSTI]

    Francini, R; Nichelatti, E; Vincenti, M A; Canci, N; Segreto, E; Cavanna, F; Di Pompeo, F; Carbonara, F; Fiorillo, G; Perfetto, F

    2013-01-01

    The use of efficient wavelength-shifters from the vacuum-ultraviolet to the photosensor's range of sensitivity is a key feature in detectors for Dark Matter search and neutrino physics based on liquid argon scintillation detection. Thin film of Tetraphenyl-butadiene (TPB) deposited onto the surface delimiting the active volume of the detector and/or onto the photosensor optical window is the most common solution in current and planned experiments. Detector design and response can be evaluated and correctly simulated only when the properties of the optical system in use (TPB film + substrate) are fully understood. Characterization of the optical system requires specific, sometimes sophisticated optical methodologies. In this paper the main features of TPB coatings on different, commonly used substrates is reported, as a result of two independent campaigns of measurements at the specialized optical metrology labs of ENEA and University of Tor Vergata. Measured features include TPB emission spectra with lineshap...

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

    E-Print Network [OSTI]

    Pang, Grantham

    lights with LEDs is a reduction in power consumption [7]. In addition, incandescent traffic signals burn1 DUAL USE OF LEDS: SIGNALING AND COMMUNICATIONS IN ITS Grantham Pang, Chi-ho Chan, Hugh Liu of light-emitting diodes (LEDs) over incandescent lights is well-supported. This is due to their high

  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. Technical Report Documentation Page 1. Report No.

    E-Print Network [OSTI]

    No. 3. Recipient's Catalog No. 4. Title and Subtitle The Impact of the Conversion of Incandescent Cleburne Houston, Texas 77004 10. Work Unit No. (TRAIS) 11. Contract or Grant No. DTRT12-G-UTC06 12 the urban core. 17. Key Words Conversion, Incandescent Bulbs, LED Light 18. Distribution Statement

  14. 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...

  15. 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

  16. Fine-scale features on bioreplicated decoys of the emerald ash borer provide necessary visual verisimilitude

    E-Print Network [OSTI]

    for developing insect- trapping technologies. Keyword: 3D Printing, Bioreplication, Bragg-stack reflector

  17. Tres Problemas de Iluminacion y Visibilidad Jorge Urrutia *

    E-Print Network [OSTI]

    Urrutia, Jorge

    mucha atenci´on en la literatura. Las fuentes de luz utilizadas para iluminar nuestros objetos pueden ser de varios tipos, l´amparas que emiten luz alrede- dor de ellas, reflectores o fuentes de luz que Reflectores. Un - reflector es una fuente de luz colocada en un punto p, llamado el ´apice del reflector, que

  18. Fourteen Points for Energy Conservation in Lighting 

    E-Print Network [OSTI]

    Zekowski, G.

    1979-01-01

    are the approximate lumen output of various lamp types: Incandescent - 17 lumens per watt; mer cury-vapor - 55 lumens per watt; fluorescent - 65 lumens per watt; metal hal ide - 95 lumens per watt; and hi pressure sodium - 120 lumens per watt. As an example, using... a low 4?/Kw, ten hours per day, you can save: $10 per year using 1-32 watt fluorescent rather than 2-60 watt incandescents. Or $33 per year by using 1-40 watt fluorescent rather than 4-60 watt incandescents. Or $33 per year using 1-175 watt mercury...

  19. 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)

    1938-01-01

    27.80 .31 1.25 .34 1.29 .20 .58 30.27 .34 1.23 .33 1.29 .40 .58 31.14 .35 1.17 .32 1.21 .53 22.31 .25 2d 30-day period. pounds 1.35 . 15 1.39 . 53 9.88 . 33 --- 1.31 . 19 . 75 . 66 . 53 7.87 . 26 1.28 . 22 . 38... .................................... Results 1928-29 (first test) 12 .................................. Results 1929-30 (second test) 18 ................................... Results 1930-31 (third test) 20 .................................. Results 1931-32 (fourth test) 24...

  20. 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

    1951-01-01

    Carcasses s4 &em VeW, N@T l Prise ~ ee ~&el 3spe for Chemise ess Oss4 ~ ef ss~ as %w Tegk, %948 PXSSSSSSP af saSaifiSd. "*. Payee PSSenSSS ar Beelime faX' C4aica Cs"c@asce ~Q a0 "eases '". . h ~?ea Vega. ~. AL~. GaOt' As(! Chases Tuse Wine1a st Perh ~sa...

  1. 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.

    2009-01-01

    Wave: A Reader in Feminist Film Theory, ed. Linda Nicholson.Domestic Violence in American Films. Violence and AmericanGormley, Paul. The New-Brutality Film: Race and Affect in

  2. Software quality metrics and their impact on embedded software Marcio F. S. Oliveira, Ricardo Miotto Redin, Luigi Carro, Lus da Cunha Lamb, Flvio Rech Wagner

    E-Print Network [OSTI]

    Wagner, Flávio Rech

    Software quality metrics and their impact on embedded software Marcio F. S. Oliveira, Ricardo systems, which raises a trade-off between software quality, measured by traditional metrics, and optimization for a specific platform. Traditional software quality concerns reuse, abstraction, coupling

  3. F.M. Brouwer R.L.M. Vissers W.M. Lamb Structure and metamorphism of the Gran Paradiso massif,

    E-Print Network [OSTI]

    Brouwer, Fraukje M.

    during initial decompression, while undergoing top-to-the-west shear on chlorite-bearing shear bands and larger scale shear zones. Biotite-bearing shear bands and larger shear zones related to top Paradiso (Meffan-Main, personal communication), Dora Maira (Tilton et al. 1989; Gebauer et al. 1993

  4. 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

    1992-01-01

    . 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...

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

    E-Print Network [OSTI]

    Wee, Qixun

    2008-01-01

    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 ...

  6. Save Energy this Independence Day | Department of Energy

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

    to look for rebates on these appliances. Changing incandescent light bulbs to CFLs or LEDs can save as much as 80% a year on lighting costs. Replacing 15 inefficient...

  7. 90.6% efficient 11MHz 22W LED driver using GaN FETs and burst-mode controller with 0.96 power factor

    E-Print Network [OSTI]

    Chandrakasan, Anantha P.

    With the advent of reliable, high brightness and high efficacy LEDs, the lighting industry is expected to see a significant growth in the near future. However, for LEDs to completely replace the traditional incandescent ...

  8. 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...

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

    E-Print Network [OSTI]

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

    2004-01-01

    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 ...

  10. School Energy Survey Student Guide

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

    of 40 new power plants. INCANDESCENT BULB HALOGEN COMPACT FLUORESCENT (CFL) LIGHT EMITTING DIODE (LED) Brightness 850 lumens 850 lumens 850 lumens 850 lumens Life of Bulb 1,000...

  11. School Energy Survey Teacher Guide

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

    Key Student Guide Page 20 INCANDESCENT BULB HALOGEN COMPACT FLUORESCENT (CFL) LIGHT EMITTING DIODE (LED) Number of bulbs to get 25,000 hours 25 8.3 2.5 1 Cost of bulbs for 25,000...

  12. Energy Saver Blog | Department of Energy

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

    April 24, 2014 LED lights are six to seven times more energy efficient than conventional incandescent lights, cut energy use by more than 80 percent and can last more than 25 times...

  13. Lighting Choices - White Background | Department of Energy

    Energy Savers [EERE]

    Choices - White Background Image icon All of these lightbulbs-CFLs, LEDs, and energy-saving incandescents-meet the new energy standards that take effect from 2012-2014. More...

  14. Lighting Choices to Save You Money Banner | Department of Energy

    Energy Savers [EERE]

    to Save You Money Banner Lighting Choices to Save You Money Banner All of these lightbulbs-CFLs, LEDs, and energy-saving incandescents-meet the new energy standards that take...

  15. New Lighting Facts Label: Takes the Guess Work Out of Shopping...

    Office of Environmental Management (EM)

    With new lighting standards taking effect this year, now's a great time switch to energy-saving incandescent, CFL, and LED light bulbs, which are available in most hardware and...

  16. TITLE AUTHORS SUBJECT SUBJECT RELATED DESCRIPTION PUBLISHER AVAILABILI...

    Office of Scientific and Technical Information (OSTI)

    Jason R Hollomon Brad Dillon Heather E Snowden Swan Lesley J LED light emitting diode CFL incandescent halogen lamp bulb TCLP STLC TTLC WET hazardous waste electronic waste e...

  17. Luminous Efficacy Standards for General Purpose Lights

    Broader source: Energy.gov [DOE]

    *Efficacy refers to the overall energy efficiency of light and is measured in lumens (measure of light output) per watt (measure of power input). The efficacy of a typical incandescent light bulb...

  18. 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...

  19. 100 LPW 800 Lm Warm White LED

    SciTech Connect (OSTI)

    Decai Sun

    2010-10-31

    An illumination grade warm white (WW) LED, having correlated color temperature (CCT) between 2800 K and 3500K and capable of producing 800 lm output at 100 lm/W, has been developed in this program. The high power WW LED is an ideal source for use as replacement for incandescent, and Halogen reflector and general purpose lamps of similar lumen value. Over the two year period, we have made following accomplishments: developed a high power warm white LED product and made over 50% improvements in light output and efficacy. The new high power WW LED product is a die on ceramic surface mountable LED package. It has four 1x1 mm{sup 2} InGaN pump dice flip chip attached to a ceramic submount in 2x2 array, covered by warm white phosphor ceramic platelets called Lumiramicâ?¢ and an overmolded silicone lens encapsulating the LED array. The performance goal was achieved through breakthroughs in following key areas: (1) High efficiency pump LED development through pump LED active region design and epi growth quality improvement (funded by internal programs). (2) Increase in injection efficiency (IE) represented by reduction in forward voltage (V{sub f}) through the improvement of the silver-based p-contact and a reduction in spreading resistance. The injection efficiency was increased from 80% at the start of the program to 96% at the end of the program at 700 mA/mm{sup 2}. (3) Improvement in thermal design as represented by reduction in thermal resistance from junction to case, through improvement of the die to submount connection in the thin film flip chip (TFFC) LED and choosing the submount material of high thermal conductivity. A thermal resistance of 1.72 K/W was demonstrated for the high power LED package. (4) Improvement in extraction efficiency from the LED package through improvement of InGaN die level and package level optical extraction efficiency improvement. (5) Improvement in phosphor system efficiency by improving the lumen equivalent (LE) and phosphor package efficiency (PPE) through improvement in phosphor-package interactions. Another achievement in the development of the phosphor integration technology is the demonstration of tight color control. The high power WW LED product developed has been proven to have good reliability. The manufacturing of the product will be done in Philips Lumiledsâ?? LUXEON Rebel production line which has produced billions of high power LEDs. The first high power WW LED product will be released to the market in 2011.

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

    E-Print Network [OSTI]

    2013-02-01

    dozen states, including 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... dozen states, including 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...

  1. 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

  2. 0.3 km/s for events within 2 km; and 7.9 0.1 km/s for events more than 2 km below the reflector. See

    E-Print Network [OSTI]

    Arblaster, Julie

    greenhouse gases and sulfate aerosols. However, most of the observed warming from 1900 to 1949 was likely due to natural climate variation. Most of the observed global-scale warming over the last 50 years is believed to have been due to the increase in atmospheric green- house gas concentrations (1). Here, we inves

  3. All-reflective optical target illumination system with high numerical aperture

    DOE Patents [OSTI]

    Sigler, Robert D. (Ann Arbor, MI)

    1978-01-01

    An all-reflective optical system for providing illumination of a target focal region at high numerical aperture from a pair of co-axially, confluent collimated light beams. A target cavity is defined by a pair of opposed inner ellipsoidal reflectors having respective first focal points within a target region and second focal points at a vertex opening in the opposing reflector. Outwardly of each inner reflector is the opposed combination of a spherical reflector, and an outer generally ellipsoidal reflector having an aberrated first focal point coincident with the focus of the opposing spherical reflector and a second focal point coincident with the second focal point of the opposing inner ellipsoidal reflector through a vertex opening in the spherical reflector. The confluent collimated beams are incident through vertex openings in the outer ellipsoidal reflectors onto respective opposing spherical reflectors. Each beam is reflected by the associated spherical reflector onto the opposing outer ellipsoidal reflector and focused thereby onto the opposing inner ellipsoidal reflector, and then onto the target region.

  4. Radiant energy collector. [Patent application

    DOE Patents [OSTI]

    McIntire, W.R.

    1980-02-14

    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.

  5. Department

    Office of Legacy Management (LM)

    see Yilmaz (1987). For planar reflectors, the part of the reflector imaged by the logging process is the component parallel to the borehole. Thus, the imaging process is biased by...

  6. Prepared by: The Biomedical Photographic

    E-Print Network [OSTI]

    Law, Wayne

    .......................... 5 Lighting Tent ............................................ 6 · Neutral Density · Black Velvet Strobes and Power Pack .......................... 6 Black Reflector and Black Cloth .............. 7

  7. Radiation Hardness Testing of Materials at the UC Davis/ McClellan Nuclear Radiation Center

    E-Print Network [OSTI]

    Boussoufi, M.; Steingass, W.; Shiraki, R.; Liu, H. B.; Flocchini, R.

    2006-01-01

    shield Exposure vessel CONDITIONING WELL… • The conditioning well is installed adjacent to the annular graphite reflector inside the reactor tank. •

  8. HIGH INTENSITY DISCHARGE (HID) SOLID STATE BALLAST PROGRAM PHASE I FINAL REPORT

    E-Print Network [OSTI]

    Ailing, W.R.

    2013-01-01

    Support ---Gasketing Alzak Reflector Installation %" pipe thread in top insert for conduit mounting or for mounting with eye bolt (

  9. Fermilab Today

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

    marinated pork tenderloin with pineapple salsa - Green rice - Margarita cake with key lime cream cheese frosting Friday, March 6 Dinner - Avgolemono soup - Herb-crusted lamb...

  10. Refraction Survey At Mt Princeton Hot Springs Geothermal Area...

    Open Energy Info (EERE)

    Refraction Survey At Mt Princeton Hot Springs Geothermal Area (Lamb, Et Al., 2012) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Refraction...

  11. AirportRoad State St. (SR 26)

    E-Print Network [OSTI]

    Pittendrigh, Barry

    24 21 22 Residence facilities To SIML HOVD Purdue M all PGU TEL CARY MOLL IAF MACK LAMB STDM STEW PMU

  12. Frequently Asked Questions Information on Compact Fluorescent Light Bulbs (CFLs) and Mercury

    E-Print Network [OSTI]

    Jia, Songtao

    home's electric bill. ENERGY STAR qualified CFLs use up to 75 percent less energy than incandescent, in one year it would save enough energy to light more than 3 million homes and prevent greenhouse gas, accessible change every American can make right now to reduce energy use at home and prevent greenhouse gas

  13. 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

  14. 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]

    listing provided by 43 CAN Lighting 11. CNA Lighting's full LED Puck Lights product listing 44 provided Management 18 G. Serving Ware 20 H. Lighting and Interior Material 22 i) Lighting 22 ii) Interior Materials comparison of energy use and light output between 42 standard incandescent bulbs and ES-qualified CFLs 9. CNA

  15. Sponsored by The Meyer Fund for Sustainable Development

    E-Print Network [OSTI]

    Oregon, University of

    of photovoltaic cells. To investigate the difference in behavior of solar cells when they are connected the current and voltage output of photovoltaic cells when connected to various loads. This activity incandescent bulbs 5. Photocell Output vs. Lamp Distance To investigate the photovoltaic (PV) cell output

  16. L Prize Drives Technology Innovation, Energy Savings

    SciTech Connect (OSTI)

    2014-04-30

    Fact sheet that provides an overview of DOE's L Prize competition, which challenges industry to develop high-quality, high-efficiency SSL products to replace 60W incandescent and PAR38 halogen light bulbs, and highlights the competition's first 60W winner from Philips Lighting North America.

  17. Fort Meade demonstration test LEDS in freezer rooms, fiber optics in display cases

    SciTech Connect (OSTI)

    Parker, Steven; Parker, Graham B.

    2008-10-25

    Demonstration projects at Fort George G. Meade, MD, substituted LED lighting for incandescent bulbs in commisary wal-in freezers and fiber optic lighting in reach-in display cases. The goal was to reduce energy consumption and the results were positive. Journal article published in Public Works Digest

  18. 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

  19. September 2007 21 commonplace," predicted Shinichiro

    E-Print Network [OSTI]

    Lu, Chenyang

    themselves and when they are in the water. The computers are powered by the sun, which also recharges. "LEDs are becoming popular," he explained, "because their light-emit- ting power is becoming large." Also, he noted, LEDs' power efficiency is greater than that of incandescent lamps and about same

  20. Today LED Holiday Lights, Tomorrow the World?

    SciTech Connect (OSTI)

    Gordon, Kelly L.

    2004-12-20

    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.

  1. Veeco's collaboration with Sandia has helped us lower

    E-Print Network [OSTI]

    Technologist Jeff Kempisty of SNL removes an InGaN LED wafer from the Veeco MOCVD system. Research Driving Down the Costs of Efficient LED Lighting Solid state lighting (SSL), which uses light emitting diodes (LEDs), has the potential to be 10 times more energy-efficient than traditional incandescent light bulbs. Currently, 20

  2. ELI Student Voices 1 ELI STUDENT VOICESVolume 10, Issue 2 Summer, 2006

    E-Print Network [OSTI]

    Sin, Peter

    of light pollution on firefly population here and in Thailand. I think not many people are concerned source of light pollution affecting the Thai firefly population. On the other hand, the incandescent bulb that the light will destroy fireflies. The stronger and brighter lights disturb the flashing behavior or sexual

  3. Printer Paper Brand Boise Office Max Boise Boise

    E-Print Network [OSTI]

    Massachusetts at Amherst, University of

    environmental impact from deliveries. #12;Envelopes Envelope Type Padded 9 ½" x 14 ½" Manila 4 1/8" x 9" White-features Compostable Compostable Compostable Compostable Image/Hyperlink Light Bulbs **All compact fluorescent (CFL of bulbs properly** Incandescent Wattage CFL Equivalent LED Equivalent 40 W 9-13 W 6-8 W 60 W 13-15 W 6-8 W

  4. UBC Social Ecological Economic Development Studies (SEEDS) Student Report An Investigation in Sustainable Lighting Lighting at Koerner's Pub

    E-Print Network [OSTI]

    assessment will measure the social, environmental, and economic impact of each of the three lighting methods, but this report will delve into whether the Pub should switch to the more sustainable, yet less common CFL or LED lighting. The analysis and comparison of the three technologies in question, namely incandescent, CFL

  5. 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

  6. 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

  7. High-K Based Non-Volatile Memory Devices with the Light Emitting Application 

    E-Print Network [OSTI]

    Lin, Chi-Chou

    2014-09-05

    State Incandescent Light Emitting Device ............ 51 2.4 Plasma Deposition and Etching of the Thin Films .................................... 52 2.5 Material Properties Characterization... ......................................................... 59 2.6 Electrical Properties Characterization ....................................................... 66 2.7 Optical Properties Characterization .......................................................... 71 CHAPTER III NANOCRYSTALLINE...

  8. Energy Savings and Green Initiatives Project Grant

    SciTech Connect (OSTI)

    Kathy MacLennan

    2011-11-21

    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

  9. By Stanley Micklavzina, Asher Tubman, and Frank Vignola for the Meyer Fund for Sustainable Development and the University of Oregon Department of Physics and the Solar Radiation Monitoring Laboratory

    E-Print Network [OSTI]

    Oregon, University of

    Development and the University of Oregon Department of Physics and the Solar Radiation Monitoring Laboratory of wavelength (color) of light on the output of a solar cell. Using an incandescent light bulb, the current output of the solar cell is measured as a series of filters are placed over the solar cell. Next

  10. IceCube: An Instrument for Neutrino Astronomy

    E-Print Network [OSTI]

    Halzen, F.

    2010-01-01

    detectors: searching for radio waves or for acoustic pulsespredictions 93 . In cold ice, radio-wave attenuation lengthperfect reflector for radio waves. With this reflection,

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

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

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

  12. The Search for Dark Matter in XENON100 using a Two-Dimensional Profile Likelihood Analysis

    E-Print Network [OSTI]

    Lung, Kevin J.

    2013-01-01

    Photograph of interlocking PTFE panels surrounding the TPCof liquid xe surrounded by ptfe reflector for gamma rays,”by 24 polytetrafluoroethylene (PTFE) panels. The Figure 2.2:

  13. Project Profile: Predictive Physico-Chemical Modeling of Intrinsic...

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

    Advanced Reflector Materials NREL logo NREL, under the Physics of Reliability: Evaluating Design Insights for Component Technologies in Solar (PREDICTS) Program will be developing...

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

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

    Postdoctoral Research Awards Annual Meeting Posters Development of a Low Cost Ultra Specular Advanced Polymer Film Solar Reflector Nano-structures Thermoelectric Materals - Part 2...

  15. Low Capital Photovoltaic Panel Electrical Output-Booster System

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

    solar applications. Spectrum adjustable LED light will be distributed via fiber-optics cables and focused via tiny mirror reflector onto Solar PV panels. Problem to be...

  16. TITLE AUTHORS SUBJECT SUBJECT RELATED DESCRIPTION PUBLISHER AVAILABILI...

    Office of Scientific and Technical Information (OSTI)

    Reflector Composite For Improved LED Fixture Efficiency and Lifetime Teather Eric ENERGY CONSERVATION CONSUMPTION AND UTILIZATION MATERIALS SCIENCE The overall objective of...

  17. Sandia National Laboratories: News: Publications: Lab News

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

    13, 2014 AREVA building on Sandia's molten salt expertise These mirrors at the National Solar Thermal Test Facility, called Compact Linear Fresnel Reflectors, are being used in...

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

    E-Print Network [OSTI]

    Sparks, Andrew

    2011-08-31

    ........................................................................................................................ 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...

  19. Bio Medical & Officers 

    E-Print Network [OSTI]

    Unknown

    2011-08-17

    The objective of this study was to evaluate the effects of inclusion of Bio-Mos in the growing ration for weaned lambs on growth rate, feed efficiency, and clinical measures of health of the lambs. Mannan oligosaccharides (MOS), when included as a...

  20. 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

  1. THE ANTHROPOLOGISTCase Western Reserve University College of Arts and Sciences A newsletter for faculty, students, alumni, and friends of the Department of Anthropology

    E-Print Network [OSTI]

    Turc, Catalin

    for faculty, students, alumni, and friends of the Department of Anthropology Dr. Cynthia Beall was honored visit: www.case.edu/artsci/anth/AnthropologyLectureSeries.html FALL 2010 DR. CYNTHIA BEALL RECEIVED. CYNTHIA BEALL Graduate Luncheon with Sarah Lamb, Ph.D. DEPARTMENT HIGHLIGHTS Professor Sarah Lamb, Ph

  2. University of Alberta Library Release Form

    E-Print Network [OSTI]

    Lu, Paul

    University of Alberta Library Release Form Name of Author: Nicholas Peter David Lamb Title this Degree Granted: 2005 Permission is hereby granted to the University of Alberta Library to reproduce's prior written permission. Nicholas Peter David Lamb 221 Athabasca Hall University of Alberta Edmonton

  3. Structural Determinants for Signal Sequence Function in the Mammalian Endoplasmic Reticulum*

    E-Print Network [OSTI]

    Nicchitta, Chris

    bearing the LamB signal peptide (LamB) were targeted in a sig- nal recognition particle (SRP the signal sequence of LamB-bearing precursors assumes a conformation re- fractory to translocation and suggest that SRP, by main- taining the signal sequence in a conformation suitable for membrane binding

  4. Understanding the proton radius puzzle: Nuclear structure effects in light muonic atoms

    E-Print Network [OSTI]

    Ji, Chen; Dinur, Nir Nevo; Bacca, Sonia; Barnea, Nir

    2015-01-01

    We present calculations of nuclear structure effects to the Lamb shift in light muonic atoms. We adopt a modern ab-initio approach by combining state-of-the-art nuclear potentials with the hyperspherical harmonics method. Our calculations are instrumental to the determination of nuclear charge radii in the Lamb shift measurements, which will shed light on the proton radius puzzle.

  5. Solar tracking device

    SciTech Connect (OSTI)

    Wyland, R.R.

    1981-01-20

    A solar tracking device having a plurality of reflector banks for reflecting the sun rays onto collector tubes and heating a fluid circulated therethrough. The reflector banks synchronized to follow the sun during the daily and yearly cycle of the earth as the earth orbits around the sun. The device by accurately following the sun provides a more efficient means of collecting solar energy.

  6. {~~~~~{{~r,)~;~~ '5 ' LRRR 300 Corner Array

    E-Print Network [OSTI]

    Rathbun, Julie A.

    Tests of Single Retro-Reflector Assemblies", Arthur D. Little, Inc., Cambridge, Massachusetts, December Approved by: D. Dewhirst #12;(1) (2) (3) (4) HO. Ri!V. MO. ATM-936 LRRR 300 Corner Array Dynamic Analysis The vibrations Analysis of the Lunar Ranging Retro Reflector 300 Corner Array (LRRR 300) was performt>d to answer

  7. A statistical approach to optimal target detection and localization in the presence of noise

    E-Print Network [OSTI]

    Solna, Knut

    when the array response matrix is measured in a noisy environment. We construct a detection test based is the combined detection and localiza- tion of a point reflector embedded in a medium by sensor array imaging and localize a point reflector embed- ded in a medium by probing the medium with time-harmonic scalar waves

  8. Thermal neutron detection system

    DOE Patents [OSTI]

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

    2000-01-01

    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.

  9. Compact range for variable-zone measurements

    DOE Patents [OSTI]

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

    1988-01-01

    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.

  10. Experimental determination of neutron lifetimes through macroscopic neutron noise in the IPEN/MB-01 reactor

    SciTech Connect (OSTI)

    Gonnelli, Eduardo; Diniz, Ricardo [Instituto de Pesquisas Energeticas e Nucleares - IPEN/CNEN-SP Travessa R-400, 05508-900, Cidade Universitaria, Sao Paulo (Brazil)

    2013-05-06

    The neutron lifetimes of the core, reflector, and global were experimentally obtained through macroscopic neutron noise in the IPEN/MB-01 reactor for five levels of subcriticality. The theoretical Auto Power Spectral Densities were derived by point kinetic equations taking the reflector effect into account, and one of the approaches consider an additional group of delayed neutrons.

  11. 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.

    1998-11-24

    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.

  12. 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)

    1998-01-01

    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.

  13. LED ProspectsLED Prospects photometric units

    E-Print Network [OSTI]

    Pulfrey, David L.

    -life incandescent with LED. · 10 light fixtures/home, lights on for 6h/day, 333 days/yr. · Electricity 0.12 $/kWh. W Illuminated by: (a) high-CRI source (b) low-CRI source EFS #12;6 http://www.ecse.rpi.edu/~schubert/Light-Emitting-Diodes-dot-org/ #12;7 http://www.ecse.rpi.edu/~schubert/Light-Emitting-Diodes-dot-org/ #12;8 http://www.ecse.rpi.edu/~schubert/Light

  14. Rod-to-rod spacing illuminating device

    DOE Patents [OSTI]

    Fodor, G.; Gaal, P.S.

    1984-03-14

    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.

  15. Michael Shur (shurm@rpi.edu) http://nina.ecse.rpi.edu/shur/ 1 Plasma WavePlasma Wave--basedbased

    E-Print Network [OSTI]

    Pala, Nezih

    ) ·Radar 10-1 ­ 1 m (1936) Cell phone (1973) ·Terahertz Gap (10 m ­ 1 mm) ·IR ·Incandescent 4 10-7 ­ 7.6 10 and biology ­THz radiation ­Imaging ­Spectroscopy and sensing ·Plasma wave electronics for THz generation.com/ap_products/images/prods_Terahertz_graphLarge.jpg #12;Michael Shur (shurm@rpi.edu) http://nina.ecse.rpi.edu/shur/ 5 Black Body and THz Radiation

  16. The Plant Cell, Vol. 4, 1229-1236, October 1992O 1992American Society of Plant Physiologists Regulationof Flavonoid Biosynthetic Genes in Germinating--

    E-Print Network [OSTI]

    Ausubel, Frederick M.

    ; Beggs et al., 1986; Bruns et al., 1986; Dixon, 1986; Senger and Schmidt, 1986; Lamb et al., 1989; Dangl been ob- served in germinating seedlings in many plants (Beggs et l Current address: Department

  17. 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

  18. Influence of supplemental monensin on gestating and lactating ewes 

    E-Print Network [OSTI]

    Peel, Richard Kraig

    1997-01-01

    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...

  19. For Immediate Release --Friday, July 11, 2014 Potato Growers of Alberta and industry partners to

    E-Print Network [OSTI]

    Morris, Joy

    of Alberta and industry partners to create research Chair at University of Lethbridge Research capacity in Alberta's potato industry will be significantly enhanced due years from the Potato Growers of Alberta (PGA), McCain Foods, ConAgra Lamb

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

    E-Print Network [OSTI]

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

    2006-01-01

    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.

  1. Observed 20th century desert dust variability: impact on climate and biogeochemistry

    E-Print Network [OSTI]

    2010-01-01

    Understanding the 30-year Barbados desert dust record, J.tration data observed at Barbados (Prospero and Lamb, 2003)on the shorter in situ Barbados concentration data (1968 to

  2. 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

  3. Hooper Springs Transmission Project SDEIS_Volume 1

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

    Farms North Wind Inc. Nu-West Industries Osprey Ranch LLC Oxarango Lamb & Wool P4 Production LLC Peart Land & Development LLC Peavler's Mountain Star Phillips Brothers Farm PMD...

  4. Controlling Feral Hog Damage 

    E-Print Network [OSTI]

    Texas Wildlife Services

    2008-04-15

    This publication discusses the distribution of feral hogs as well as their habitats, food habits and reproduction. Feral hogs can damage crops and kill lambs and kid goats. Methods of control are also explained....

  5. THE UNIVERSITY OF MICHIGAN Regents Communication

    E-Print Network [OSTI]

    Cafarella, Michael J.

    in the area of shipbuilding technology has been funded consistently by the Department of the Navy, the Office and contributions in the area of shipbuilding improvement. Within the classroom, Mr. Lamb developed two new courses

  6. 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

  7. Stratigraphic significance of uvigerinid foraminifers in the Western Hemisphere

    E-Print Network [OSTI]

    Lamb, J. L.; Miller, T. H.

    1984-12-18

    OF KANSAS PALEONTOLOGICAL CONTRIBUTIONS ARTICLE 66 Stratigraphic Significance of Uvigerinid Foraminifers in the Western Hemisphere J. L. Lamb and T. H. Miller Harold Norman Fisk Memorial Papers Exxon Company, U.S.A. The University of Kansas Paleontological... OF UVIGERINID FORAMINIFERS IN THE WESTERN HEMISPHERE' J. L. LAMB and T. H. MILLER 4818 E. Laureldale Drive, Houston, Texas 77041 and Exxon Production Research Corporation, P. 0. Box 2189, Houston, Texas 77001 Abstract—Uvigerinid foraminifers increasingly...

  8. Polo Grounds 

    E-Print Network [OSTI]

    Unknown

    2011-09-05

    Drylot Lamb Feeding Industry: Operational Characteristics and Costs The Texas Agricultural Experiment Station Charles J. Arntzen, Director The Texas A&M University System B-1632 _)")0 0' " (Blank Page in Odgi.al BuUetiDl ' :-.. .. .~ 1..." / '/ , " ".." .-: +" , : . . , ~ . ( ~ :: ~. ,' .. . The Texas Drylot Lamb Feeding Industry: Operational Characteristics and Costs R.A. Dietrich J.R. Conner G.C. Wenzel? *Respectively, associate professor, professor, and former research assistant, Texas Agricultural Experimen Station (Department...

  9. Nutritional analysis of meats from selected wild game and domestic animals 

    E-Print Network [OSTI]

    Moczygemba, Daniel Ray

    1991-01-01

    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...

  10. A. Kusiak, C.A. Caldarone, M.D. Kelleher, F.S. Lamb, T.J. Persoon, Y. Gan, and A. Burns, Mining Temporal Data Sets: Hypoplastic Left Heart Syndrome Case Study, in B.V. Dasarathy (Ed.), Proceedings of the SPIE Conference on Data

    E-Print Network [OSTI]

    Kusiak, Andrew

    of Cardiothorcic Surgery and ***Pediatrics University of Iowa Hospital and Clinics The University of Iowa Iowa City. An experienced team of physicians, nurses, and therapists is required to successfully manage the infant. However for the simultaneous collection of 73 physiologic, laboratory, and nurse-assessed variables. Data records were created

  11. The Technical and Economic Potential for Electricity Energy Efficiency in a Semiconductor Manufacturing Plant 

    E-Print Network [OSTI]

    Lee, A. H. W.; Golden, J. W.; Zarnikau, J. W.

    1997-01-01

    systems can replace mercury vapor systems and conventional fluorescent systems, respectively. A fluorescent lighting retrofit includes T- 8 lamps, electronic ballasts, and reflectors which use silver-film laminates and polished aluminium to create a...

  12. 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 ...

  13. IEEE PHOTONICS TECHNOLOGY LETTERS, VOL. 20, NO. 23, DECEMBER 1, 2008 1905 A Magnetically Actuated Resonant Mass Sensor With

    E-Print Network [OSTI]

    Alaca, B. Erdem

    of the resonating structure and the diffraction grating by electroplating of Ni, which also brings about motion. The typical surface roughness associated with the electroplating of Ni as the moving reflector

  14. PowerPoint Presentation - FY13 Q1 | Department of Energy

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

    Documents & Publications Low-Cost Self-Cleaning Reflector Coatings for CSP Collectors - FY13 Q2 Low-Cost Self-Cleaning Coatings for CSP Collectors Self-Cleaning CSP Optics with EDS...

  15. Ambiguous Configurations for the 1D Structure and Motion Problem Fredrik Kahl and Kalle strm

    E-Print Network [OSTI]

    Lunds Universitet

    the IST project 1999-10736, VISIRE and the Swedish Research Council, project 221-2000-476. b Reflector the direction from the vehicle to the beacons. This information is used to calculate the position of the vehicle

  16. Self-referencing remote optical probe

    DOE Patents [OSTI]

    O'Rourke, P.E.; Prather, W.S.; Livingston, R.R.

    1991-08-13

    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.

  17. Modeling and inversion of PS-wave moveout asymmetry for tilted TI media: Part 2 --Dipping TTI layer

    E-Print Network [OSTI]

    Tsvankin, Ilya

    symmetry axis TTI media cause serious imaging problems in fold-and- thrust belts and near salt domes. Here axis layer above a plane dipping reflector Tsvan- kin and Grechka, 2000, 2002 . In active tectonic

  18. Annular core liquid-salt cooled reactor with multiple fuel and blanket zones

    DOE Patents [OSTI]

    Peterson, Per F.

    2013-05-14

    A liquid fluoride salt cooled, high temperature reactor having a reactor vessel with a pebble-bed reactor core. The reactor core comprises a pebble injection inlet located at a bottom end of the reactor core and a pebble defueling outlet located at a top end of the reactor core, an inner reflector, outer reflector, and an annular pebble-bed region disposed in between the inner reflector and outer reflector. The annular pebble-bed region comprises an annular channel configured for receiving pebble fuel at the pebble injection inlet, the pebble fuel comprising a combination of seed and blanket pebbles having a density lower than the coolant such that the pebbles have positive buoyancy and migrate upward in said annular pebble-bed region toward the defueling outlet. The annular pebble-bed region comprises alternating radial layers of seed pebbles and blanket pebbles.

  19. A Linear Parabolic Trough Solar Collector Performance Model 

    E-Print Network [OSTI]

    Qu, M.; Archer, D.; Masson, S.

    2006-01-01

    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 ...

  20. 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.

    2008-05-01

    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.

  1. Concentrating Solar Power (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2010-08-01

    Fact sheet describing the overall capabilities of the NREL CSP Program: collector/receiver characterization, advanced reflector and absorber materials, thermal storage and advanced heat transfer fluids, and CSP modeling and analysis.

  2. Geophys. J. Int. (2007) 169, 631645 doi: 10.1111/j.1365-246X.2007.03350.x GJISeismology

    E-Print Network [OSTI]

    Rost, Sebastian

    2007-01-01

    of another deeper reflector that could indicate a double intersection of the geotherm with the post-lengths from a few tens to a few hundred kilometres with strong variations both laterally and vertically (e

  3. The Reactivity and transient analysis of MITR-II

    E-Print Network [OSTI]

    Yarman, Nuh Tolga

    1972-01-01

    The two-dimensional, time dependent, three-group diffusion equations for the proposed designed core of the MIT reactor are written with an extra source term accounting for the photoneutrons generated in the D20 reflector. ...

  4. National Radio Astronomy Observatory Charlottesville, Virginia

    E-Print Network [OSTI]

    = EBXPSI hhhhhhh = EfficiencyErrorSurface EfficiencyBlockage EfficiencyizationCrosspolar EfficiencyErrorPhase EfficiencySpillover EfficiencyionIllumincat E B X P S I = = = = = = h h h h h h #12;Gain of Reflector

  5. 70 IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS, VOL. 9, 2010 Reconfigurable Reflectarray Using Addressable

    E-Print Network [OSTI]

    Cummer, Steven A.

    that is an effective LC tank circuit when much smaller than the operating wavelength [2]. The electric counterpart] such as radomes [9], reflectors, elec- tromagnetic interference (EMI) shielding, and radar absorbent materials

  6. The economics of fuel depletion in fast breeder reactor blankets

    E-Print Network [OSTI]

    Brewer, Shelby Templeton

    1972-01-01

    A fast breeder reactor fuel depletion-economics model was developed and applied to a number of 1000 MWe UMBR case studies, involving radial blanket-radial reflector design, radial blanket fuel management, and sensitivity ...

  7. Image Synthesis using Adjoint Photons R. Keith Morley

    E-Print Network [OSTI]

    Shirley, Peter

    over a curved, specular reflector in a fog bank), both the geometric and optical complex- ity can. #12;sensor plane 752nm 540nm 585nm Photons lens light 420nm Adjoint Photons lens sensor (weighting

  8. A compressed-scale system of portable visibility lights

    E-Print Network [OSTI]

    Visibility Laboratory

    1960-01-01

    trials of the system that fogging of the reflector surfacesonce a week, and a de-fogging compound such as the Stocktransmittance of the surfaces. Fogging of the windows of the

  9. Coherent Control of Optical Processes in a Resonant Medium 

    E-Print Network [OSTI]

    O'Brien, Christopher Michael

    2012-02-14

    as distributed Bragg reflectors, holey fibers, or photonic crystals) in a homogeneous resonant atomic media such as dielectrics with homogeneously distributed impurities, atomic, or molecular gases. These optically produced photonic structures could easily...

  10. Putting Concepts to Work: Some Thoughts for the 21st Century (a reply to Fodor) 

    E-Print Network [OSTI]

    Clark, Andy; Prinz, Jesse

    2004-01-01

    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 ...

  11. Signal statistics of phase dependent optical time domain reflectometry 

    E-Print Network [OSTI]

    Wojcik, Aleksander Karol

    2007-04-25

    The statistics of the phase dependent optical time-domain reflectometer have been analyzed. The optical fiber is modeled by the use of a discrete set of reflectors positioned randomly along the fiber. The statistics of the ...

  12. The Compact RCS / Antenna Range at MIT Lincoln Laboratory

    E-Print Network [OSTI]

    Shields, Michael W.

    A new compact range with a state-of-the-art instrumentation system was installed at Lincoln Laboratory and is currently in use. This paper describes the chamber with varied-height absorber, the rolled-edge reflector and ...

  13. WiPrint: 3D Printing Your Wireless Coverage Author: Justin Chan

    E-Print Network [OSTI]

    WiPrint: 3D Printing Your Wireless Coverage Author: Justin Chan Advisor: Xia Zhou Dartmouth WiPrint, a novel approach to customiz- ing wireless signal maps using 3D printed glossy reflectors

  14. SYNERGY of Irradiation and PIE Facilities at BNL

    E-Print Network [OSTI]

    McDonald, Kirk

    of neutron flux/reaction rates for accelerator-driven systems Blanket, moderator, reflector concept: Integrate into the design a "tunable" acceleration system (i.e. FFAG, CCA) to populate energy space up to 1

  15. Nonlinear characterization of a single-axis acoustic levitator

    SciTech Connect (OSTI)

    Andrade, Marco A. B.; Ramos, Tiago S.; Okina, Fábio T. A.; Adamowski, Julio C.

    2014-04-15

    The nonlinear behavior of a 20.3 kHz single-axis acoustic levitator formed by a Langevin transducer with a concave radiating surface and a concave reflector is experimentally investigated. In this study, a laser Doppler vibrometer is applied to measure the nonlinear sound field in the air gap between the transducer and the reflector. Additionally, an electronic balance is used in the measurement of the acoustic radiation force on the reflector as a function of the distance between the transducer and the reflector. The experimental results show some effects that cannot be described by the linear acoustic theory, such as the jump phenomenon, harmonic generation, and the hysteresis effect. The influence of these nonlinear effects on the acoustic levitation of small particles is discussed.

  16. Updated: November 2015 Suggested Courses for ME Students Interested in Nuclear Engineering

    E-Print Network [OSTI]

    Virginia Tech

    to radiation protection and reactor accident analysis. Nuclear engineering ethics principles processes of hear generation and transport in nuclear reactors. Heat generation, moderator, reflector, blanket, coolant, control shielding and safety systems; processes such as nuclear fuel

  17. Integrated photonic structures for light trapping in thin-film Si solar cells

    E-Print Network [OSTI]

    Sheng, Xing

    We explore the mechanisms for an efficient light trapping structure for thin-film silicon solar cells. The design combines a distributed Bragg reflector (DBR) and periodic gratings. Using photonic band theories and numerical ...

  18. Compact D-D/D-T neutron generators and their applications

    E-Print Network [OSTI]

    Lou, Tak Pui

    2003-01-01

    n=1 imp:p=1 c Li-6 Polyethylene shielding 530 40 0.103509 (-n=1 imp:p=1 c Li-6 Polyethylene shielding 530 40 0.103509 (-reflector Tungsten shielding Polyethylene moderator Figure

  19. U.S. DEPARTMENT OF ENERGY * SAVANNAH RIVER SITE * AIKEN * SC

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

    with respect to primary beam and minimizes travel to reduce attenuation. Use of the target as the primary reflector instead of the bottom of the tank or drum minimizes the...

  20. Technological assessment of light-trapping technology for thin-film Si solar cell

    E-Print Network [OSTI]

    Susantyoko, Rahmat Agung

    2009-01-01

    The proposed light trapping technology of Distributed Bragg Reflector (DBR) with Diffraction Grating (DG) and Anti-Reflection Coating (ARC) for thin film Si solar cell was analyzed from the technology, market, and ...

  1. Computational study and analysis of structural imperfections in 1D and 2D photonic crystals

    E-Print Network [OSTI]

    Maskaly, Karlene Rosera

    2005-01-01

    Dielectric reflectors that are periodic in one or two dimensions, also known as 1D and 2D photonic crystals, have been widely studied for many potential applications due to the presence of wavelength-tunable photonic ...

  2. Approaches To Integrating A HIgh Penertration Of Solar PV and CPV Onto The Electrical Grid

    E-Print Network [OSTI]

    Hill, Steven Craig

    2013-01-01

    Performance Evaluation of Sun Tracking Photovoltaic Systemsof the sun’s disk and achieved by continuous tracking. TheTracking Solar PV with Low Concentration ration Reflector Huang, B. ; Sun,

  3. Fracture Detection using Amplitude versus Offset and Azimuth Analysis of a 3D P-wave Seismic Dataset and Synthetic Examples

    E-Print Network [OSTI]

    Minsley, Burke J.

    2004-05-26

    Amplitude versus offset (AVO) analysis of seismic reflection data has been a successful tool in describing changes in rock properties along a reflector. This method is extended to azimuthal AVO (AVOA) in order to characterize ...

  4. Integrating radar stratigraphy with high resolution visible stratigraphy of the north polar layered deposits, Mars

    E-Print Network [OSTI]

    Byrne, Shane

    Integrating radar stratigraphy with high resolution visible stratigraphy of the north polar layered that radar reflectors can be used as geometric prox- ies for visible stratigraphy. Furthermore in the stratigraphy of the pola

  5. New AB-Thermonuclear Reactor for Aerospace

    E-Print Network [OSTI]

    Bolonkin, Alexander

    2007-01-01

    There are two main methods of nulcear fusion: inertial confinement fusion (ICF) and magnetic confinement fusion (MCF). Existing thermonuclear reactors are very complex, expensive, large, and heavy. They cannot achieve the Lawson creterion. The author offers an innovation. ICF has on the inside surface of the shell-shaped combustion chamber a covering of small Prism Reflectors (PR) and plasma reflector. These prism reflectors have a noteworthy advantage, in comparison with conventional mirror and especially with conventional shell: they multi-reflect the heat and laser radiation exactly back into collision with the fuel target capsule (pellet). The plasma reflector reflects the Bremsstrahlung radiation. The offered innovation decreases radiation losses, creates significant radiation pressure and increases the reaction time. The Lawson criterion increases by hundreds of times. The size, cost, and weight of a typical installation will decrease by tens of times. The author is researching the efficiency of these i...

  6. 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)

    2009-01-27

    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.

  7. Large Area Vacuum Deposited Coatings

    SciTech Connect (OSTI)

    Martin, Peter M.

    2003-04-30

    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.

  8. Receiver for solar energy collector having improved aperture aspect

    DOE Patents [OSTI]

    McIntire, William R. (Downers Grove, IL)

    1984-01-01

    A secondary concentrator for use in receiver systems for linear focusing primary concentrators is provided with reflector wings at each end. The wings increase the capture of light rays reflected from areas adjacent the rim of a primary concentrator, increasing the apparent aperture size of the absorber as viewed from the rim of the primary concentrator. The length, tilt, and curvature of the wing reflectors can be adjusted to provide an absorber having a desired aperture aspect.

  9. Durable Corrosion and Ultraviolet-Resistant Silver Mirror

    DOE Patents [OSTI]

    Jorgensen, G. J.; Gee, R.

    2006-01-24

    A corrosion and ultra violet-resistant silver mirror for use in solar reflectors; the silver layer having a film-forming protective polymer bonded thereto, and a protective shield overlay comprising a transparent multipolymer film that incorporates a UV absorber. The corrosion and ultraviolet resistant silver mirror retains spectral hemispherical reflectance and high optical clarity throughout the UV and visible spectrum when used in solar reflectors.

  10. Slope Error Measurement Tool for Solar Parabolic Trough Collectors: Preprint

    SciTech Connect (OSTI)

    Stynes, J. K.; Ihas, B.

    2012-04-01

    The National Renewable Energy Laboratory (NREL) has developed an optical measurement tool for parabolic solar collectors that measures the combined errors due to absorber misalignment and reflector slope error. The combined absorber alignment and reflector slope errors are measured using a digital camera to photograph the reflected image of the absorber in the collector. Previous work using the image of the reflection of the absorber finds the reflector slope errors from the reflection of the absorber and an independent measurement of the absorber location. The accuracy of the reflector slope error measurement is thus dependent on the accuracy of the absorber location measurement. By measuring the combined reflector-absorber errors, the uncertainty in the absorber location measurement is eliminated. The related performance merit, the intercept factor, depends on the combined effects of the absorber alignment and reflector slope errors. Measuring the combined effect provides a simpler measurement and a more accurate input to the intercept factor estimate. The minimal equipment and setup required for this measurement technique make it ideal for field measurements.

  11. Discharge lamp with reflective jacket

    DOE Patents [OSTI]

    MacLennan, Donald A. (Gaithersburg, MD); Turner, Brian P. (Damascus, MD); Kipling, Kent (Gaithersburg, MD)

    2001-01-01

    A discharge lamp includes an envelope, a fill which emits light when excited disposed in the envelope, a source of excitation power coupled to the fill to excite the fill and cause the fill to emit light, and a reflector disposed around the envelope and defining an opening, the reflector being configured to reflect some of the light emitted by the fill back into the fill while allowing some light to exit through the opening. The reflector may be made from a material having a similar thermal index of expansion as compared to the envelope and which is closely spaced to the envelope. The envelope material may be quartz and the reflector material may be either silica or alumina. The reflector may be formed as a jacket having a rigid structure which does not adhere to the envelope. The lamp may further include an optical clement spaced from the envelope and configured to reflect an unwanted component of light which exited the envelope back into the envelope through the opening in the reflector. Light which can be beneficially recaptured includes selected wavelength regions, a selected polarization, and selected angular components.

  12. Demonstration Assessment of Light Emitting Diode (LED) Residential Downlights and Undercabinet Lights in the Lane County Tour of Homes, Eugene, Oregon

    SciTech Connect (OSTI)

    Ton, My K.; Richman, Eric E.; Gilbride, Theresa L.

    2008-11-10

    In August 2008 the Pacific Northwest National Laboratory (PNNL) conducted a light emitting diode (LED) residential lighting demonstration project for the U.S. Department of Energy (DOE), Office of Building Technologies, as part of DOE’s Solid State Lighting (SSL) Technology Demonstration Gateway Program. Two lighting technologies, an LED replacement for downlight lamps (bulbs) and an LED undercabinet lighting fixture, were tested in the demonstration which was conducted in two homes built for the 2008 Tour of Homes in Eugene, Oregon. The homes were built by the Lane County Home Builders Association (HBA), and Future B Homes. The Energy Trust of Oregon (ETO) also participated in the demonstration project. The LED downlight product, the LR6, made by Cree LED Lighting Solutions acts as a screw-in replacement for incandescent and halogen bulbs in recessed can downlights. The second product tested is Phillips/Color Kinetics’ eW® Profile Powercore undercabinet fixture designed to mount under kitchen cabinets to illuminate the countertop and backsplash surfaces. Quantitative and qualitative measurements of light performance and electrical power usage were taken at each site before and after initially installed halogen and incandescent lamps were replaced with the LED products. Energy savings and simple paybacks were also calculated and builders who toured the homes were surveyed for their responses to the LED products. The LED downlight product drew 12 Watts of power, cutting energy use by 82% compared to the 65W incandescent lamp and by 84% compared to the 75W halogen lamp. The LED undercabinet fixture drew 10 watts, cutting energy use by 83% to 90% compared to the halogen product, which was tested at two power settings: a low power 60W setting and a high power 105W setting. The LED downlight consistently provided more light than the halogen and incandescent lamps in horizontal measurements at counter height and floor level. It also outperformed in vertical illuminance measurements taken on the walls, indicating better lateral dispersion of the light. The undercabinet fixture’s light output was midway between the low and high power halogen undercabinet fixture light outputs (35.8 foot candle versus 13.4 fc and 53.4 fc) but it produced a more uniform light (max/min ratio of 7.0 versus 10.8). The color correlated temperature (CCT, the blue or yellowness) of the LED light correlated well with the halogen and incandescent lights (2675 K vs 2700 K). The color rendering of the LED downlight also correlated well at 92 CRI compared to 100 CRI for the halogen and incandescent lamps. The LED undercabinet fixture had measures of 2880 K CCT and 71 CRI compared to the 2700 K and 100 CRI scores for the halogen undercabinet fixture. Builders who toured the homes were surveyed; they gave the LED downlight high marks for brightness, said the undercabinet improved shadows and glare and said both products improved overall visibility, home appearance, and home value. Paybacks on the LED downlight ranged from 7.6 years (assuming electricity cost of 11 c/kWh) to 13.5 years (at 5C/kWh). Paybacks on the LED undercabinet fixture in a new home ranged from 4.4 years (11c/kWh electricity) to 7.6 years (5c/kWh) based on product costs of $95 per LED downlight and $140 per LED undercabinet fixture at 3 hrs per day of usage for the downlight and 2 hrs per day for the undercabinet lighting.

  13. Power-law scaling in protein synthesis of a stochastic regulon

    E-Print Network [OSTI]

    Emily Chapman-McQuiston; Chuck Yeung; X. L. Wu

    2008-08-07

    We investigate the protein expression pattern of the lamB gene in Escherichia coli LE392. The gene product LamB is an important membrane protein for maltose transport into cells but it is also exploited by bacteriophage lambda for infection. Although our bacterial population is clonal, stochastic gene expression leads to a majority population with a large receptor number and a minority population with a small receptor number. We find that the LamB receptor distribution p(n) of the small-n population is scale invariant with the exponent depending on growth conditions. A heuristic model is proposed that relates the observed exponent to the protein production rate.

  14. Optical double-slit particle measuring system

    DOE Patents [OSTI]

    Tichenor, D.A.; Wang, J.C.F.; Hencken, K.R.

    1982-03-25

    A method for in situ measurement of particle size is described. The size information is obtained by scanning an image of the particle across a double-slit mask and observing the transmitted light. This method is useful when the particle size of primary interest is 3..mu..m and larger. The technique is well suited to applications in which the particles are non-spherical and have unknown refractive index. It is particularly well suited to high temperature environments in which the particle incandescence provides the light source.

  15. Optical double-slit particle measuring system

    DOE Patents [OSTI]

    Hencken, Kenneth R. (Pleasanton, CA); Tichenor, Daniel A. (Freemont, CA); Wang, James C. F. (Livermore, CA)

    1984-01-01

    A method for in situ measurement of particle size is described. The size information is obtained by scanning an image of the particle across a double-slit mask and observing the transmitted light. This method is useful when the particle size of primary interest is 3 .mu.m and larger. The technique is well suited to applications in which the particles are non-spherical and have unknown refractive index. It is particularly well suited to high temperature environments in which the particle incandescence provides the light source.

  16. Effects of bile salts and other carboxylates on the reactions of N-tert-butyl-2,4,6-trinitrobenzamide in dimethyl sulfoxide-water solutions 

    E-Print Network [OSTI]

    Koranek, David James

    1977-01-01

    incandescent bulb at a distance of 20 cm), [5] = 4x10 M: Curve 1 ( . ), initial spectrum; Curve Z ( ? ), after 2 hours; Curve 3 (---), after 10 days; Curve 4 (+-+), after 24 days. . . 92 2Z Absorption spectra of the complex in DMSO at 25. 0'C... of the absorbance at 535 nm vs. nitrite ion concentration using 1. 0 cm cells at 25. 0'C. 4 Absorption spectra of the complex generated in situ from Page 15 24 27 5 at 25. 0'C: 10 M NaOH; 10 M NaOH; -2 Curve 1 (---), in 99K/1% DMSO/H20 (v/v), Curve 2...

  17. ASRC RSS Data

    DOE Data Explorer [Office of Scientific and Technical Information (OSTI)]

    Kiedron, Peter

    2008-01-15

    Once every minute between sunrise and sunset the Rotating Shadowband Spectroradiometer (RSS) measures simultaneously three irradiances: total horizontal, diffuse horizontal and direct normal in near ultraviolet, visible and near infrared range (approx. 370nm-1050nm) at 512 (RSS103) or 1024 (RSS102 and RSS105) adjacent spectral resolving elements (pixels). The resolution is pixel (wavelength) dependent and it differs from instrument to instrument. The reported irradiances are cosine response corrected. And their radiometric calibration is based on incandescent lamp calibrators that can be traced to the NIST irradiance scale. The units are W/m2/nm.

  18. White light velocity interferometer

    DOE Patents [OSTI]

    Erskine, D.J.

    1999-06-08

    The invention is a technique that allows the use of broadband and incoherent illumination. Although denoted white light velocimetry, this principle can be applied to any wave phenomenon. For the first time, powerful, compact or inexpensive sources can be used for remote target velocimetry. These include flash and arc lamps, light from detonations, pulsed lasers, chirped frequency lasers, and lasers operating simultaneously in several wavelengths. The technique is demonstrated with white light from an incandescent source to measure a target moving at 16 m/s. 41 figs.

  19. Enhancement of the resolution of full-field optical coherence tomography by using a colour image sensor

    SciTech Connect (OSTI)

    Kalyanov, A L; Lychagov, V V; Smirnov, I V; Ryabukho, V P [N.G. Chernyshevsky Saratov State University, Saratov (Russian Federation)

    2013-08-31

    The influence of white balance in a colour image detector on the resolution of a full-field optical coherence tomograph (FFOCT) is studied. The change in the interference pulse width depending on the white balance tuning is estimated in the cases of a thermal radiation source (incandescent lamp) and a white light emitting diode. It is shown that by tuning white balance of the detector in a certain range, the FFOCT resolution can be increased by 20 % as compared to the resolution, attained with the use of a monochrome detector. (optical coherence tomography)

  20. Secondary Electron Emission from Dust and Its Effect on Charging

    SciTech Connect (OSTI)

    Saikia, B. K.; Kakati, B.; Kausik, S. S. [Centre of Plasma Physics, Institute for Plasma Research, Nazirakhat, Sonapur-782402, Assam (India); Bandyopadhyay, M. [ITER-India, Institute for Plasma Research, Bhat, Gandhinagar-382 428 (India)

    2011-11-29

    Hydrogen plasma is produced in a plasma chamber by striking discharge between incandescent tungsten filaments and the permanent magnetic cage [1], which is grounded. The magnetic cage has a full line cusped magnetic field geometry used to confine the plasma elements. A cylindrical Langmuir probe is used to study the plasma parameters in various discharge conditions. The charge accumulated on the dust particles is calculated using the capacitance model and the dust current is measured by the combination of a Faraday cup and an electrometer at different discharge conditions. It is found Secondary electron emission from dust having low emission yield effects the charging of dust particles in presence of high energetic electrons.

  1. The development of a laser safety program for a large academic research institution using Texas A&M University as a model 

    E-Print Network [OSTI]

    Johnson, Douglas Allen

    1995-01-01

    gas laser falls into the highest laser hazard category, class 4. Momentary viewing will cause eye injury. The incandescent bulb is rated by its power consumption, not its output. It emits approximately 10/o of its rated power as light and it does so... the escape of light above the class 1 limits. Common commercial devices (normally FDA approved) that incorporate class 3 lasers are: compact disk (CD) players, CD computer dnves, and laser printers They often contain diode lasers that qualify as class 3...

  2. ASRC RSS Data

    DOE Data Explorer [Office of Scientific and Technical Information (OSTI)]

    Kiedron, Peter

    Once every minute between sunrise and sunset the Rotating Shadowband Spectroradiometer (RSS) measures simultaneously three irradiances: total horizontal, diffuse horizontal and direct normal in near ultraviolet, visible and near infrared range (approx. 370nm-1050nm) at 512 (RSS103) or 1024 (RSS102 and RSS105) adjacent spectral resolving elements (pixels). The resolution is pixel (wavelength) dependent and it differs from instrument to instrument. The reported irradiances are cosine response corrected. And their radiometric calibration is based on incandescent lamp calibrators that can be traced to the NIST irradiance scale. The units are W/m2/nm.

  3. Aerogel-supported filament

    DOE Patents [OSTI]

    Wuest, C.R.; Tillotson, T.M.; Johnson, C.V. III

    1995-05-16

    The present invention is a thin filament embedded in a low density aerogel for use in radiation detection instruments and incandescent lamps. The aerogel provides a supportive matrix that is thermally and electrically nonconductive, mechanically strong, highly porous, gas-permeable, and transparent to ionizing radiation over short distances. A low density, open-cell aerogel is cast around a fine filament or wire, which allows the wire to be positioned with little or no tension and keeps the wire in place in the event of breakage. The aerogel support reduces the stresses on the wire caused by vibrational, gravitational, electrical, and mechanical forces. 6 Figs.

  4. Aerogel-supported filament

    DOE Patents [OSTI]

    Wuest, Craig R. (Danville, CA); Tillotson, Thomas M. (Tracy, CA); Johnson, III, Coleman V. (Dallas, TX)

    1995-01-01

    The present invention is a thin filament embedded in a low density aerogel for use in radiation detection instruments and incandescent lamps. The aerogel provides a supportive matrix that is thermally and electrically nonconductive, mechanically strong, highly porous, gas-permeable, and transparent to ionizing radiation over short distances. A low density, open-cell aerogel is cast around a fine filament or wire, which allows the wire to be positioned with little or no tension and keeps the wire in place in the event of breakage. The aerogel support reduces the stresses on the wire caused by vibrational, gravitational, electrical, and mechanical forces.

  5. Demonstration of LED Retrofit Lamps at the Smithsonian American Art Museum, Washington, DC

    SciTech Connect (OSTI)

    Miller, Naomi J.; Rosenfeld, Scott M.

    2012-06-22

    This report documents observations and results obtained from a lighting demonstration project conducted under the U.S. Department of Energy GATEWAY Solid-State Lighting (SSL) Technology Demonstration Program at the Smithsonain American Art Museum in Washington, DC. LED Lamp samples were tested in the museum workshop, temporarily installed in a gallery for feedback, and ultimately replaced all traditional incandescent lamps in one gallery of modernist art at the American Art Museum and partially replacing lamps in two galleries at the Musesum's Renwick Gallery. This report describes the selection and testing process, technology challenges, perceptions, economics, energy use, and mixed results of usign LED replacement lamps in art galleries housing national treasures.

  6. Dimming LEDs with Phase-Cut Dimmers. The Specifier's Process for Maximizing Success

    SciTech Connect (OSTI)

    Miller, N. J.; Poplawski, M. E.

    2013-10-01

    DOE GATEWAY program report reviewing how phase-cut dimmers work, how LEDs differ from the incandescent lamps these dimmers were originally designed to control, and how those differences can lead to complications when attempting to dim LEDs. Providing both general guidance and step-by-step procedures for designing phase-controlled LED dimming on both new and existing projects—as well as real-world examples of how to use those procedures—the report aims to reduce the chance of experiencing compatibility-related problems and, if possible, ensure good dimming performance.

  7. World Record White OLED Performance Exceeds 100 lm/W

    Broader source: Energy.gov [DOE]

    Universal Display Corporation (UDC) has successfully demonstrated a record-breaking white organic light-emitting diode (WOLED) with a power efficacy of 102 lm/W at 1000 cd/m2 using its proprietary, high-efficiency phosphorescent OLED technology. This achievement represents a significant milestone for OLED technology, demonstrating performance that surpasses the power efficacy of incandescent bulbs with less than 15 lm/W and fluorescent lamps at 60-90 lm/W. Funded in part by DOE, UDC's achievement is a major step toward DOE's roadmap goal of a 150 lm/W commercial OLED light source by 2015.

  8. Lighting Options for Homes.

    SciTech Connect (OSTI)

    Baker, W.S.

    1991-04-01

    This report covers many aspects of various lighting options for homes. Types of light sources described include natural light, artificial light, incandescent lamps, fluorescent lamps, and high intensity discharge lamps. A light source selection guide gives the physical characteristics of these, design considerations, and common applications. Color, strategies for efficient lighting, and types of lighting are discussed. There is one section giving tips for various situations in specific rooms. Rooms and types of fixtures are shown on a matrix with watts saved by using the recommended type lighting for that room and room location. A major emphasis of this report is saving energy by utilizing the most suitable, recommended lighting option. (BN)

  9. Design principle and calculations of a Scheffler fixed focus concentrator for medium temperature applications

    SciTech Connect (OSTI)

    Munir, A.; Hensel, O. [Department of Agricultural Engineering,University of Kassel, Nordbahnhofstr. 1 a 37213 Witzenhausen (Germany); Scheffler, W. [Solar Bruecke G.v.Werdenbergstr.6 D-89344 Aislingen (Germany)

    2010-08-15

    Scheffler fixed focus concentrators are successfully used for medium temperature applications in different parts of the world. These concentrators are taken as lateral sections of paraboloids and provide fixed focus away from the path of incident beam radiations throughout the year. The paper presents a complete description about the design principle and construction details of an 8 m{sup 2} surface area Scheffler concentrator. The first part of the paper presents the mathematical calculations to design the reflector parabola curve and reflector elliptical frame with respect to equinox (solar declination = 0) by selecting a specific lateral part of a paraboloid. Crossbar equations and their ellipses, arc lengths and their radii are also calculated to form the required lateral section of the paraboloid. Thereafter, the seasonal parabola equations are calculated for two extreme positions of summer and winter in the northern hemisphere (standing reflectors). The slopes of the parabola equations for equinox (solar declination = 0), summer (solar declination = +23.5) and winter (solar declination = -23.5) for the Scheffler reflector (8 m{sup 2} surface area) are calculated to be 0.17, 0.28, and 0.13 respectively. The y-intercepts of the parabola equations for equinox, summer and winter are calculated as 0, 0.54, and -0.53 respectively. By comparing with the equinox parabola curve, the summer parabola is found to be smaller in size and uses the top part of the parabola curve while the winter parabola is bigger in size and uses the lower part of the parabola curve to give the fixed focus. For this purpose, the reflector assembly is composed of flexible crossbars and a frame to induce the required change of the parabola curves with the changing solar declination. The paper also presents the calculation procedure of seasonal parabola equations for standing reflectors in the southern hemisphere as well as for laying reflectors in the northern and southern hemispheres. Highly reflective aluminium sheets are used on the crossbar profiles to complete the concentrator. The reflector is installed at the required site by setting its axis of rotation at an angle equal to the latitude of the site. For daily tracking, these concentrators rotate along an axis parallel to the polar axis of the earth at an angular velocity of one revolution per day with the help of simpler and cheaper self-tracking devices. For seasonal tracking, the reflector rotates at half the solar declination angle with the help of a telescopic clamp mechanism. The design procedure is simple, flexible and does not need any special computational setup, thus offering the prospect of potential application in domestic as well as industrial configurations. (author)

  10. Enhancement of Light Yield and Stability of Radio-Pure Tetraphenyl-Butadiene Based Coatings for VUV Light Detection in Cryogenic Environments

    E-Print Network [OSTI]

    Laura Baudis; Giovanni Benato; Rugard Dressler; Francesco Piastra; Ilya Usoltsev; Manuel Walter

    2015-06-19

    The detection of VUV scintillation light, e.g. in (liquid) argon detectors, commonly includes a reflector with a fluorescent coating, converting UV photons to visible light. The light yield of these detectors depends directly on the conversion efficiency. Several coating/reflector combinations were produced using VM2000, a specular reflecting multi layer polymer, and Tetratex, a diffuse reflecting PTFE fabric, as reflector foils. The light yield of these coatings was optimised and has been measured in a dedicated liquid argon setup built at the University of Zurich. It employs a small, 1.3 kg LAr cell viewed by a 3-inch, low radioactivity PMT of type R11065-10 from Hamamatsu. The cryogenic stability of these coatings was additionally studied. The optimum reflector/coating combination was found to be Tetratex dip coated with Tetraphenyl-butadiene with a thickness of 0.9 mg/cm$^2$ resulting in a 3.6 times higher light yield compared to uncoated VM2000. Its performance was stable in long term measurements, ran up to 100 days, in liquid argon. This coated reflector was further investigated concerning radioactive impurities found to be suitable for current and upcoming low-background experiments. Therefore it is used for the liquid argon veto in Phase II of the GERDA neutrinoless double beta decay experiment.

  11. Graphene-based terahertz tunable plasmonic directional coupler

    SciTech Connect (OSTI)

    He, Meng-Dong, E-mail: hemendong@sohu.com; Wang, Kai-Jun; Wang, Lei; Li, Jian-Bo [Institute of Mathematics and Physics, Central South University of Forestry and Technology, Changsha 410004 (China); Liu, Jian-Qiang [College of Science, Jiujiang University, Jiujiang 332005 (China); Huang, Zhen-Rong; Wang, Lingling [Key Laboratory for Micro-Nano Optoelectronic Devices of Ministry of Education, Hunan University, Changsha 410082 (China); Wang, Lin; Hu, Wei-Da; Chen, Xiaoshuang [National Laboratory for Infrared Physics, Shanghai Institute of Technical Physics, Chinese Academy of Science, Shanghai 200083 (China)

    2014-08-25

    We propose and numerically analyze a terahertz tunable plasmonic directional coupler which is composed of a thin metal film with a nanoscale slit, dielectric grating, a graphene sheet, and a dielectric substrate. The slit is employed to generate surface plasmon polaritons (SPPs), and the metal-dielectric grating-graphene-dielectric constructs a Bragg reflector, whose bandgap can be tuned over a wide frequency range by a small change in the Fermi energy level of graphene. As a graphene-based Bragg reflector is formed on one side of the slit, the structure enables SPP waves to be unidirectionally excited on the other side of the slit due to SPP interference, and the SPP waves in the Bragg reflector can be efficiently switched on and off by tuning the graphene's Fermi energy level. By introducing two optimized graphene-based Bragg reflectors into opposite sides of the slit, SPP waves can be guided to different Bragg reflectors at different Fermi energy levels, thus achieving a tunable bidirectional coupler.

  12. Alfalfa. 

    E-Print Network [OSTI]

    Ball, O. M. (Oscar Melville)

    1908-01-01

    . Noxious weeds are given i heavy t;ype. UUYLpA,, number. Kind, character, and number of for- eign seeds in one pound. BUCKHORN, or Ribgrass 2350; GREEN FOXTAIL 270; LAMB'S QUARTER 270; Red clover 90; DOCK 180: WILD. CARROT 275: DODDER 180: Crimson... Clover 90; Total 3700. BUCKHORN 2100; GREEN FOX- TAIL 275 : YELLOW FOXTAIL 100 ; MALLOW 350; WILD CARROT 275; CHICORY 275; SOW THISTLE 200; CATCHFLY ZOO; Rape 100; Cab- bage 100; SORREL 200; DODDER 90; CENTAURY 200; LAMB'S QUARTER 275; Total 4740...

  13. Attachment and detachment of microorganisms as related to sampling carcasses and meat products 

    E-Print Network [OSTI]

    Butler, Jacqueline Love

    1980-01-01

    of Advisory Committee: Dr. C. Vanderzant A model system was developed to study attachment and de- t-chment of' bacteria with pork skin and muscle surfaces of beef and lamb carcasses. The technique involved embedding pork skin and beef and lamb muscle... medium, although in some cases attachment continued to occur over a $0-min period. Gram-negative motile bacteria had greater force of attachment than gram-positive non-motile species. Temperature and pH of the attachment medium had little eff...

  14. Optical cavity furnace for semiconductor wafer processing

    DOE Patents [OSTI]

    Sopori, Bhushan L.

    2014-08-05

    An optical cavity furnace 10 having multiple optical energy sources 12 associated with an optical cavity 18 of the furnace. The multiple optical energy sources 12 may be lamps or other devices suitable for producing an appropriate level of optical energy. The optical cavity furnace 10 may also include one or more reflectors 14 and one or more walls 16 associated with the optical energy sources 12 such that the reflectors 14 and walls 16 define the optical cavity 18. The walls 16 may have any desired configuration or shape to enhance operation of the furnace as an optical cavity 18. The optical energy sources 12 may be positioned at any location with respect to the reflectors 14 and walls defining the optical cavity. The optical cavity furnace 10 may further include a semiconductor wafer transport system 22 for transporting one or more semiconductor wafers 20 through the optical cavity.

  15. Electric lamp, base for use therewith and method of assembling same

    DOE Patents [OSTI]

    Hough, Harold L. (Beverly, MA); English, George J. (Reading, MA); Chakrabarti, Kirti B. (Danvers, MA)

    1989-02-14

    An electric lamp including a reflector, at least one conductive ferrule located within a surface of the reflector and a lead-in conductor electrically connected to the ferrule and extending within the reflector. The lamp includes a base having an insulative (e.g., ceramic) cap located substantially about the ferrule, barrier means (e.g., ceramic fiber) located within the cap to define an open chamber substantially about the ferrule, an electrical conductor (e.g., wire) extending within the cap and electrically connected (e.g., silver soldered) to the ferrule, and sealing means (e.g., high temperature cement) located within the cap to provide a seal therefore. The barrier means serves to separate the sealing means from the open chamber about the ferrule such that the heat generated by the ferrule can be vented through spaced apertures located within the cap's side wall. A method of assembling a base on an electric lamp is also provided.

  16. One piece microwave container screens for electrodeless lamps

    DOE Patents [OSTI]

    Turner, Brian (Myersville, MD); Ury, Michael (Bethesda, MD)

    1998-01-01

    A microwave powered electrodeless lamp includes an improved screen unit having mesh and solid sections with an internal reflector 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. Replacing mesh material by solid metal material as part of the screen unit significantly reduces leakage of microwave energy from the lamp. The solid section has multiple compliant fingers defined therein for engaging the periphery of a flange on the waveguide unit so that a hose clamp can easily secure the screen to the assembly. Screen units of this type having different mesh section configurations can be interchanged in the lamp assembly to produce different respective illumination patterns.

  17. Improvements in transport calculations by the optimized multigroup libraries for fast neutron systems

    SciTech Connect (OSTI)

    Mosca, P.; Mounier, C.; Bellier, P.; Zmijarevic, I.

    2012-07-01

    This paper shows how to improve the accuracy of the transport calculations using in the APOLLO2 code the optimized multigroup libraries calculated by AEMC for fast neutron systems. These ameliorations concern the fission source calculation and the self-shielding models. The calculation of the fission source was generalized to fission spectra including an incident neutron energy dependence. The subgroup self-shielding model was updated for a mixture of resonant nuclides. Some tests on a Pu-239 sphere without reflectors and a fast sodium cell show that the use of four fission spectra guarantees a correct representation of the fission source. The test on a Pu-239 sphere with a thick steel reflector proves that the subgroup self-shielding, accounting for the mutual shielding of several resonant nuclides, allows us to improve the accuracy of the neutron transport solution in the reflector. (authors)

  18. Ultrasonic cleaning of interior surfaces

    DOE Patents [OSTI]

    MacKenzie, D.; Odell, C.

    1994-03-01

    An ultrasonic cleaning apparatus is described for cleaning the interior surfaces of tubes. The apparatus includes an ultrasonic generator and reflector each coupled to opposing ends of the open-ended, fluid-filled tube. Fluid-tight couplings seal the reflector and generator to the tube, preventing leakage of fluid from the interior of the tube. The reflector and generator are operatively connected to actuators, whereby the distance between them can be varied. When the distance is changed, the frequency of the sound waves is simultaneously adjusted to maintain the resonant frequency of the tube so that a standing wave is formed in the tube, the nodes of which are moved axially to cause cavitation along the length of the tube. Cavitation maximizes mechanical disruption and agitation of the fluid, dislodging foreign material from the interior surface. 3 figures.

  19. Ultrasonic cleaning of interior surfaces

    DOE Patents [OSTI]

    Odell, D. MacKenzie C. (Aiken, SC)

    1994-01-01

    An ultrasonic cleaning apparatus for cleaning the interior surfaces of tubes. The apparatus includes an ultrasonic generator and reflector each coupled to opposing ends of the open-ended, fluid-filled tube. Fluid-tight couplings seal the reflector and generator to the tube, preventing leakage of fluid from the interior of the tube. The reflector and generator are operatively connected to actuators, whereby the distance between them can be varied. When the distance is changed, the frequency of the sound waves is simultaneously adjusted to maintain the resonant frequency of the tube so that a standing wave is formed in the tube, the nodes of which are moved axially to cause cavitation along the length of the tube. Cavitation maximizes mechanical disruption and agitation of the fluid, dislodging foreign material from the interior surface.

  20. Ultrasonic cleaning of interior surfaces

    DOE Patents [OSTI]

    Odell, D. MacKenzie C. (Aiken, SC)

    1996-01-01

    An ultrasonic cleaning method for cleaning the interior surfaces of tubes. The method uses an ultrasonic generator and reflector each coupled to opposing ends of the open-ended, fluid-filled tube. Fluid-tight couplings seal the reflector and generator to the tube, preventing leakage of fluid from the interior of the tube. The reflector and generator are operatively connected to actuators, whereby the distance between them can be varied. When the distance is changed, the frequency of the sound waves is simultaneously adjusted to maintain the resonant frequency of the tube so that a standing wave is formed in the tube, the nodes of which are moved axially to cause cavitation along the length of the tube. Cavitation maximizes mechanical disruption and agitation of the fluid, dislodging foreign material from the interior surface.