National Library of Energy BETA

Sample records for resolve light bulb

  1. Westinghouse Pays $50,000 Civil Penalty to Resolve Light Bulb...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Westinghouse Pays 50,000 Civil Penalty to Resolve Light Bulb Efficiency Violations Westinghouse Pays 50,000 Civil Penalty to Resolve Light Bulb Efficiency Violations December 13, ...

  2. Westinghouse Pays $50,000 Civil Penalty to Resolve Light Bulb Efficiency Violations

    Energy.gov [DOE]

    The Department of Energy has successfully resolved the enforcement case against Westinghouse Lighting Corporation for failure to certify its light bulbs as compliant with DOE’s federal efficiency...

  3. Comparing Light Bulbs

    Office of Energy Efficiency and Renewable Energy (EERE)

    In this exercise, students will use a light to demonstrate the difference between being energy-efficient and energy-wasteful, and learn what energy efficiency means.

  4. Changing How You Choose Light Bulbs

    Energy.gov [DOE]

    Last month, the Federal Trade Commission announced that light bulbs will have a brand new style of packaging, starting in 2011.

  5. 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...

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

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Department of Energy Electricity & Fuel » Lighting » How Energy-Efficient Light Bulbs Compare with Traditional Incandescents How Energy-Efficient Light Bulbs Compare with Traditional Incandescents By replacing your home's five most frequently used light fixtures or bulbs with models that have earned the ENERGY STAR, you can save $75 each year. By replacing your home's five most frequently used light fixtures or bulbs with models that have earned the ENERGY STAR, you can save $75 each

  7. Purchasing Energy-Efficient Light Bulbs

    Energy.gov [DOE]

    The Federal Energy Management Program (FEMP) provides acquisition guidance for light bulbs, a product category covered by ENERGY STAR. Federal laws and requirements mandate that agencies purchase ENERGY STAR qualified products or FEMP designated products in all product categories covered by these programs and in any acquisition actions that are not specifically exempted by law.

  8. Consumer Light Bulb Changes: Briefing and Resources for Media...

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    lighting available today. Consumer Light Bulb Changes: Briefing and Resources for Media and Retailers (2.08 MB) More Documents & Publications Interior Lighting ...

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

    Energy Savers

    Light Bulbs Compare with Traditional ... The table below compares a 60 watt (W) traditional ... *Based on 2 hrsday of usage, an electricity rate of 11 ...

  10. Purchasing Energy-Efficient Light Bulbs | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Coal-burning power plants emit mercury into the environment; using ENERGY ... Get a list of ENERGY STAR certified light bulbs. Make ... By using less electricity from coal-fired power ...

  11. Buying the Perfect Energy-Efficient Light Bulb in 5 Easy Steps

    Energy.gov [DOE]

    Purchasing an energy-efficient light bulb doesn't have to be difficult. With these five easy steps, you can find the best energy-efficient light bulb for your home!

  12. CALiPER Snapshot Report: Light Bulbs

    SciTech Connect (OSTI)

    2013-10-01

    Snapshot reports use data from DOE's LED Lighting Facts product list to compare the LED performance to standard technologies, and are designed to help lighting retailers, distributors, designers, utilities, energy efficiency program sponsors, and other stakeholders understand the current state of the LED market and its trajectory.

  13. Consumer Light Bulb Changes: Briefing and Resources for Media and Retailers

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    | Department of Energy Consumer Light Bulb Changes: Briefing and Resources for Media and Retailers Consumer Light Bulb Changes: Briefing and Resources for Media and Retailers This presentation provides helpful background information on the new legislation and the types of energy-efficient lighting available today. Consumer Light Bulb Changes: Briefing and Resources for Media and Retailers (2.08 MB) More Documents & Publications Interior Lighting Efficiency for Municipalities Lighting Tip

  14. Evaluation Helps Program Increase Sales of Energy Saving Light Bulbs Among

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Women | Department of Energy Program Increase Sales of Energy Saving Light Bulbs Among Women Evaluation Helps Program Increase Sales of Energy Saving Light Bulbs Among Women This document, from the Wisconsin Focus on Energy / ENERGY STAR Products Program, is part of the Case Study Series, explaining how "Evaluation Helps Program Increase Sales of Energy Saving Light Bulbs Among Women." ENERGY STAR Case Study (307.01 KB) More Documents & Publications Compact Fluorescent Lighting

  15. A Winning Light Bulb With the Potential to Save the Nation Billions |

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Department of Energy A Winning Light Bulb With the Potential to Save the Nation Billions A Winning Light Bulb With the Potential to Save the Nation Billions August 4, 2011 - 3:09pm Addthis This 10-watt alternative LED bulb (which glows white when turned on) could save the nation about 35 terawatt-hours of electricity or $3.9 billion in one year and avoid 20 million metric tons of carbon emissions if every 60-watt incandescent bulb in the U.S. was replaced with the L Prize winner. | Photo

  16. DOE Requires Westinghouse to Cease Sales of Two Light Bulb Models and Allows Sale of Another

    Energy.gov [DOE]

    As a part of DOE's continuing enforcement action against Westinghouse Lighting Corporation, the company must cease sales of two light bulb models - medium based CFL basic model 15GLOBE/65/2 ...

  17. Consumer Light Bulb Changes: Briefing and Resources for Media and Retailers

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Briefing for Media and Retailers - Lighting eere.energy.gov 1 Consumer Light Bulb Changes: Briefing and Resources for Media and Retailers Briefing for Media and Retailers - Lighting eere.energy.gov 2 * Briefing: - To schedule interviews, please contact DOE Public Affairs at 202-586-4940 * Terms: - Lumens: Commonly a measure of brightness (technically "luminous flux") - CFL: Compact Fluorescent Lamp: The curly fluorescent bulbs - LED: Light Emitting Diode: more recently emerging

  18. L Prize(tm): The Race for Super Efficient Light Bulbs | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    L Prize(tm): The Race for Super Efficient Light Bulbs L Prize(tm): The Race for Super Efficient Light Bulbs This September 23, 2008 webcast provided an overview of the Bright Tomorrow Lighting Prize (L Prize) technology competition. The L Prize calls for super-efficient SSL products to replace two of the most common light bulbs used today: the 60-watt incandescent and the PAR-38 halogen reflector. Kelly Gordon, Pacific Northwest National Laboratory, kicked off the webcast with an overview of the

  19. Rise and Shine: Lighting the World with 10 Billion LED Bulbs | Department

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    of Energy Rise and Shine: Lighting the World with 10 Billion LED Bulbs Rise and Shine: Lighting the World with 10 Billion LED Bulbs December 7, 2015 - 9:23am Addthis Rise and Shine: Lighting the World with 10 Billion LED Bulbs Gabrielle Dreyfus, Ph.D. Gabrielle Dreyfus, Ph.D. Senior Policy Analyst, Office of International Climate and Clean Energy. Chad Gallinat, Ph.D. Chad Gallinat, Ph.D. International Climate Fellow, Office of International Climate and Clean Energy Stand next to a

  20. The History of the Light Bulb | Department of Energy

    Energy.gov (indexed) [DOE]

    pioneer Charles Proteus Steinmetz (center in light-colored suit) poses with Albert Einstein (immediate left) and other inventors at the RCA Brunswick, New Jersey,...

  1. What Light Bulbs Do You Use in Your Home? | Department of Energy

    Energy.gov (indexed) [DOE]

    Neighborhood Program Financing Peer Exchange Call: "What is the Right Rate?" call slides and discussion summary, December 1, 2011. Call Slides and Discussion Summary (606.43 KB) More Documents & Publications Structuring Rebate and Incentive Programs for Sustainable Demand Peer Exchange Call on Financing and Revenue: Bond Funding Financing Small Business Upgrades

    Eric Barendsen posted about the differences in costs between traditional and energy efficient light bulbs. Several

  2. Westinghouse and Fuzhou Permitted to Restart Distribution of Light Bulb Products

    Energy.gov [DOE]

    The Department has issued Notices of Allowance to Westinghouse Lighting Corporation and Fuzhou Sunlight Lighting Electrical Appliance Company determining, based on corrected test data provided by...

  3. Lamp bulb with integral reflector

    DOE Patents [OSTI]

    Levin, Izrail; Shanks, Bruce; Sumner, Thomas L.

    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.

  4. Tips: Shopping for Lighting

    Energy.gov [DOE]

    When shopping for lighting, you can now use the Lighting Facts label and lumens to compare bulbs and purchase a bulb with the amount of brightness you want.

  5. Jacketed lamp bulb envelope

    DOE Patents [OSTI]

    MacLennan, Donald A.; Turner, Brian P.; Gitsevich, Aleksandr; Bass, Gary K.; Dolan, James T.; Kipling, Kent; Kirkpatrick, Douglas A.; Leng, Yongzhang; Levin, Izrail; Roy, Robert J.; Shanks, Bruce; Smith, Malcolm; Trimble, William C.; Tsai, Peter

    2001-01-01

    A jacketed lamp bulb envelope includes a ceramic cup having an open end and a partially closed end, the partially closed end defining an aperture, a lamp bulb positioned inside the ceramic cup abutting the aperture, and a reflective ceramic material at least partially covering a portion of the bulb not abutting the aperture. The reflective ceramic material may substantially fill an interior volume of the ceramic cup not occupied by the bulb. The ceramic cup may include a structural feature for aiding in alignment of the jacketed lamp bulb envelope in a lamp. The ceramic cup may include an external flange about a periphery thereof. One example of a jacketed lamp bulb envelope includes a ceramic cup having an open end and a closed end, a ceramic washer covering the open end of the ceramic cup, the washer defining an aperture therethrough, a lamp bulb positioned inside the ceramic cup abutting the aperture, and a reflective ceramic material filling an interior volume of the ceramic cup not occupied by the bulb. A method of packing a jacketed lamp bulb envelope of the type comprising a ceramic cup with a lamp bulb disposed therein includes the steps of filling the ceramic cup with a flowable slurry of reflective material, and applying centrifugal force to the cup to pack the reflective material therein.

  6. Alliant Energy Interstate Power and Light (Gas and Electric)...

    Energy.gov (indexed) [DOE]

    Geothermal Heat Pumps: 1,600 - 3,200 Lighting Fixtures: varies, up to 100fixture Light bulbs and lighting: varies, up to 15bulb LED Fixtures: 30 LED Bulbs: 10 FanMotor...

  7. Time-resolved far-infrared experiments at the National Synchrotron Light Source. Final report

    SciTech Connect (OSTI)

    Tanner, D.B.; Reitze, D.H.; Carr, G.L.

    1999-10-12

    A facility for time-resolved infrared and far-infrared spectroscopy has been built and commissioned at the National Synchrotron Light Source. This facility permits the study of time dependent phenomena over a frequency range from 2-8000cm{sup {minus}1} (0.25 meV-1 eV). Temporal resolution is approximately 200 psec and time dependent phenomena in the time range out to 100 nsec can be investigated.

  8. Evaluation Helps Program Increase Sales of Energy Saving Light...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Evaluation Helps Program Increase Sales of Energy Saving Light Bulbs Among Women Evaluation Helps Program Increase Sales of Energy Saving Light Bulbs Among Women This document,...

  9. Another Side of Light - D

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    D. Three quantum phenomena In fluorescence, matter absorbs light waves of a high frequency and then emits light of the same or lower frequency. This process was studied and named by George Gabriel Stokes in the mid-19th century. Today, fluorescence is familiar to us from fluorescent light bulbs. A fluorescent bulb's filament produces ultraviolet light, which is absorbed by the bulb's inner coating, which then emits lower-frequency visible light-more visible light than an incandescent bulb

  10. SuperBulbs Inc | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    SuperBulbs, Inc. Place: Rewood City, California Zip: 94065 Product: California-based LED manufacturer and technology developer. References: SuperBulbs, Inc.1 This article is...

  11. Time- and space-resolved light emission and spectroscopic research of the flashover plasma

    SciTech Connect (OSTI)

    Gleizer, J. Z.; Krasik, Ya. E.; Leopold, J.

    2015-02-21

    The results of an experimental study of the evolution of surface flashover across the surface of an insulator in vacuum subject to a high-voltage pulse and the parameters of the flashover plasma are reported. For the system studied, flashover is always initiated at the cathode triple junctions. Using time-resolved framing photography of the plasma light emission the velocity of the light emission propagation along the surface of the insulator was found to be ∼2.5·10{sup 8} cm/s. Spectroscopic measurements show that the flashover is characterized by a plasma density of 2–4 × 10{sup 14} cm{sup −3} and neutral and electron temperatures of 2–4 eV and 1–3 eV, respectively, corresponding to a plasma conductivity of ∼0.2 Ω{sup −1} cm{sup −1} and a discharge current density of up to ∼10 kA/cm{sup 2}.

  12. Tips: Lighting | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    bulbs and can last up to three times longer than traditional incandescent light bulbs. ... ENERGY STAR-qualified CFLs use about 75% less energy and last up to 10 times longer than ...

  13. Lighting Controls | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    fluorescent lighting fixtures rather than replace them. Dimmers and LEDs Some light-emitting diode (LED) lightbulbs can be used with dimmers. LED bulbs and fixtures must be...

  14. Direct observation of a resolvable spin separation in the spin Hall effect of light at an air-glass interface

    SciTech Connect (OSTI)

    Ren, Jin-Li; Wang, Bo; Xiao, Yun-Feng; Gong, Qihuang; Li, Yan

    2015-09-14

    We theoretically and experimentally demonstrate that it is possible to directly observe the resolvable spin separation in the spin Hall effect of light at an air-glass interface by choosing optimal parameters. When a P-polarized light with a beam waist of 10 μm is incident around Brewster's angle, the two spin components of the reflected beam can be completely separated by eliminating the influence of the in-plane wavevector spread. This not only obviously reveals the strong impacts of the polarization state, the incident angle, the beam waist, and the in-plane wavevector spread, but also intuitively visualizes the observation of the spin Hall effect of light.

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

    Energy Savers

    New Lighting Facts Label: Takes the Guess Work Out of Shopping for Light Bulbs New Lighting Facts Label: Takes the Guess Work Out of Shopping for Light Bulbs January 25, 2012 - ...

  16. Ultrafast time-resolved spectroscopy of the light-harvesting complex 2 (LH2) from the photosynthetic bacterium Thermochromatium tepidum

    SciTech Connect (OSTI)

    Niedzwiedzki, Dariusz M.; Fuciman, Marcel; Kobayashi, Masayuki; Frank, Harry A.; Blankenship, Robert E.

    2011-10-08

    The light-harvesting complex 2 from the thermophilic purple bacterium Thermochromatium tepidum was purified and studied by steady-state absorption and fluorescence, sub-nanosecond-time-resolved fluorescence and femtosecond time-resolved transient absorption spectroscopy. The measurements were performed at room temperature and at 10 K. The combination of both ultrafast and steady-state optical spectroscopy methods at ambient and cryogenic temperatures allowed the detailed study of carotenoid (Car)-to-bacteriochlorophyll (BChl) as well BChl-to-BChl excitation energy transfer in the complex. The studies show that the dominant Cars rhodopin (N = 11) and spirilloxanthin (N = 13) do not play a significant role as supportive energy donors for BChl a. This is related with their photophysical properties regulated by long ?-electron conjugation. On the other hand, such properties favor some of the Cars, particularly spirilloxanthin (N = 13) to play the role of the direct quencher of the excited singlet state of BChl.

  17. Department of Energy Announces Philips Lighting North America as Winner of L Prize Competition

    Energy.gov [DOE]

    Philips Product Delivers on Department's Challenge to Replace Common Light Bulb with Energy-Saving Lighting Alternative

  18. Tips: Lighting | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Tips: Lighting Tips: Lighting Lighting choices save you money. Energy-efficient light bulbs are available in a wide variety of sizes and shapes. Lighting choices save you money....

  19. Outdoor Solar Lighting | Department of Energy

    Energy.gov (indexed) [DOE]

    ... solar heating and cooling Active solar heating Follow Us followontwitter.png followonfacebook.png Lighting Blogs Buying the Perfect Energy-Efficient Light Bulb in 5 Easy ...

  20. 1999 Commercial Buildings Characteristics--Glossary--Lighting...

    U.S. Energy Information Administration (EIA) (indexed site)

    produces light by passing electricity through mercury vapor, causing the fluorescent coating to glow, or fluoresce. Excluded are compact fluorescent light bulbs, which are listed...

  1. Spectrally resolved hyperfine interactions between polaron and nuclear spins in organic light emitting diodes: Magneto-electroluminescence studies

    SciTech Connect (OSTI)

    Crooker, S. A.; Kelley, M. R.; Martinez, N. J. D.; Nie, W.; Mohite, A.; Nayyar, I. H.; Tretiak, S.; Smith, D. L.; Liu, F.; Ruden, P. P.

    2014-10-13

    We use spectrally resolved magneto-electroluminescence (EL) measurements to study the energy dependence of hyperfine interactions between polaron and nuclear spins in organic light-emitting diodes. Using layered devices that generate bright exciplex emission, we show that the increase in EL emission intensity I due to small applied magnetic fields of order 100 mT is markedly larger at the high-energy blue end of the EL spectrum (ΔI/I ∼ 11%) than at the low-energy red end (∼4%). Concurrently, the widths of the magneto-EL curves increase monotonically from blue to red, revealing an increasing hyperfine coupling between polarons and nuclei and directly providing insight into the energy-dependent spatial extent and localization of polarons.

  2. New Lighting Facts Label: Takes the Guess Work Out of Shopping for Light

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Bulbs | Department of Energy Lighting Facts Label: Takes the Guess Work Out of Shopping for Light Bulbs New Lighting Facts Label: Takes the Guess Work Out of Shopping for Light Bulbs January 25, 2012 - 5:52am Addthis Chris Stewart Senior Communicator at DOE's National Renewable Energy Laboratory If you're like me, it sometimes feels overwhelming standing at the store and staring at a big wall of light bulbs, trying to understand all the lighting choices. With new lighting standards taking

  3. Lighting the Way to Serious Savings | Department of Energy

    Office of Environmental Management (EM)

    These energy-efficient light bulbs are available in stores now and are already helping American families and businesses save money by saving energy. The lighting webpage also ...

  4. TOMORROW: Department of Energy to Announce Philips Lighting North...

    Energy Savers

    The Department of Energy's L Prize challenged the lighting industry to strive to develop high performance, energy-saving replacements for conventional light bulbs that will save ...

  5. LEDs: The Future of Lighting is Here | Department of Energy

    Energy Savers

    phone, a street light, an exit sign, and the common household light bulb have in common? ... carbon, and decrease the electricity consumption equivalent to powering 24 million homes. ...

  6. DOE Announces Winners of Lighting for Tomorrow 2010 Competition...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    2004. This year, the SSL competition was expanded beyond fixtures to include light-emitting diode (LED) replacement bulbs as well as lighting control devices that are compatible...

  7. Energy 101: Lighting Choices | Department of Energy

    Energy Savers

    but with higher efficiencies-so they save you money. Upgrading 15 of the inefficient incandescent light bulbs in your home to energy-saving incandescent, compact fluorescent ...

  8. Luminous Efficacy Standards for General Purpose Lights

    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...

  9. Characterization of spatially resolved high resolution x-ray spectrometers for high energy density physics and light source experiments

    SciTech Connect (OSTI)

    Hill, K. W. Bitter, M.; Delgado-Aparacio, L.; Efthimion, P.; Pablant, N. A.; Lu, J.; Beiersdorfer, P.; Chen, H.; Magee, E.

    2014-11-15

    A high resolution 1D imaging x-ray spectrometer concept comprising a spherically bent crystal and a 2D pixelated detector is being optimized for diagnostics of small sources such as high energy density physics (HEDP) and synchrotron radiation or x-ray free electron laser experiments. This instrument is used on tokamak experiments for Doppler measurements of ion temperature and plasma flow velocity profiles. Laboratory measurements demonstrate a resolving power, E/ΔE of order 10 000 and spatial resolution better than 10 μm. Initial tests of the high resolution instrument on HEDP plasmas are being performed.

  10. Depth-resolved confocal micro-Raman spectroscopy for characterizing GaN-based light emitting diode structures

    SciTech Connect (OSTI)

    Chen, Wei-Liang; Lee, Yu-Yang; Chang, Yu-Ming; Chang, Chiao-Yun; Huang, Huei-Min; Lu, Tien-Chang

    2013-11-15

    In this work, we demonstrate that depth-resolved confocal micro-Raman spectroscopy can be used to characterize the active layer of GaN-based LEDs. By taking the depth compression effect due to refraction index mismatch into account, the axial profiles of Raman peak intensities from the GaN capping layer toward the sapphire substrate can correctly match the LED structural dimension and allow the identification of unique Raman feature originated from the 0.3 μm thick active layer of the studied LED. The strain variation in different sample depths can also be quantified by measuring the Raman shift of GaN A{sub 1}(LO) and E{sub 2}(high) phonon peaks. The capability of identifying the phonon structure of buried LED active layer and depth-resolving the strain distribution of LED structure makes this technique a potential optical and remote tool for in operando investigation of the electronic and structural properties of nitride-based LEDs.

  11. When to Turn Off Your Lights | Department of Energy

    Energy.gov (indexed) [DOE]

    will also keep a room cooler, an extra benefit in the summer. Halogen Lighting While halogens are more efficient than traditional incandescent bulbs, they use the same technology...

  12. Concord Municipal Light Plant- Residential Energy Efficiency Rebate Program

    Office of Energy Efficiency and Renewable Energy (EERE)

    Concord Municipal Light Plant (CMLP) offers residential customers rebates on home weatherization, air conditioning system upgrades, and the purchase of LED bulbs.

  13. Evaluation Helps Program Increase Sales of Energy Saving Light...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Program Increase Sales of Energy Saving Light Bulbs Among Women Evaluation Helps Program ... the Case Study Series, explaining how "Evaluation Helps Program Increase Sales of Energy ...

  14. 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...

  15. The light curve shapes as a key to resolving the origin of long secondary periods in red giant stars

    SciTech Connect (OSTI)

    Soszyński, I.; Udalski, A. E-mail: udalski@astrouw.edu.pl

    2014-06-10

    We present a study of Optical Gravitational Lensing Experiment light curves of red giant stars exhibiting long secondary periods (LSPs)—an enigmatic phenomenon commonly observed in stars on the upper red giant branch and asymptotic giant branch. We show that the light curves of LSP stars are essentially identical to those of the spotted variables with one dark spot on their photospheres. Such behavior can be explained by the presence of a dusty cloud orbiting the red giant together with a low-mass companion in a close, circular orbit. We argue that the binary scenario is in agreement with most of the observational properties of LSP variables, including non-sinusoidal shapes of their radial velocity curves.

  16. Lighting Controls | Department of Energy

    Energy Savers

    LED bulbs and fixtures must be designed for dimming, and you may need to replace existing dimmer switches with ones that are compatible with an LED lighting product. The packaging ...

  17. LED lamp or bulb with remote phosphor and diffuser configuration with enhanced scattering properties

    SciTech Connect (OSTI)

    Tong, Tao; Le Toquin, Ronan; Keller, Bernd; Tarsa, Eric; Youmans, Mark; Lowes, Theodore; Medendorp, Jr., Nicholas W; Van De Ven, Antony; Negley, Gerald

    2014-11-11

    An LED lamp or bulb is disclosed that comprises a light source, a heat sink structure and an optical cavity. The optical cavity comprises a phosphor carrier having a conversions material and arranged over an opening to the cavity. The phosphor carrier comprises a thermally conductive transparent material and is thermally coupled to the heat sink structure. An LED based light source is mounted in the optical cavity remote to the phosphor carrier with light from the light source passing through the phosphor carrier. A diffuser dome is included that is mounted over the optical cavity, with light from the optical cavity passing through the diffuser dome. The properties of the diffuser, such as geometry, scattering properties of the scattering layer, surface roughness or smoothness, and spatial distribution of the scattering layer properties may be used to control various lamp properties such as color uniformity and light intensity distribution as a function of viewing angle.

  18. Why Did the LED Light Bulb Cross the Road?

    Energy.gov [DOE]

    Could using humor as a marketing strategy make energy efficiency a bit more digestible? One Illinois grant recipient thinks it could be.

  19. The History of the Light Bulb | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    ... Both Thomas Edison and Nikola Tesla experimented with fluorescent lamps in the 1890s, but neither ever commercially produced them. Instead, it was Peter Cooper Hewitt's ...

  20. Lighting

    Energy.gov [DOE]

    One of the simplest ways to save energy and money is to switch to energy-efficient lights. Learn about your lighting choices that can save you money.

  1. DOE Science Showcase - Light-emitting Diode (LED) Lighting Research | OSTI,

    Office of Scientific and Technical Information (OSTI)

    US Dept of Energy Office of Scientific and Technical Information Light-emitting Diode (LED) Lighting Research Light-emitting diode (LED) lighting is a type of solid-state lighting that uses a semiconductor to convert electricity to light. LED lighting products are beginning to appear in a wide variety of home, business, and industrial products such as holiday lighting, replacement bulbs for incandescent lamps, street lighting, outdoor area lighting and indoor ambient lighting. Over the past

  2. Which Bulb Is Right for You? (High-Resolution EPS Billboard) | Department

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    of Energy EPS Billboard) Which Bulb Is Right for You? (High-Resolution EPS Billboard) High-resolution EPS of billboard reading, 'Which bulb is right for you? Save energy, save money. Energysaver.gov.' DoE_Billboard_Which_Bulb.eps (11.05 MB) More Documents & Publications Which Bulb Is Right for You? (High-Resolution JPG Billboard) Which Bulb Is Right for You? (Low-Resolution JPG Billboard) Goodbye, Watts. Hello, Lumens. (High-Resolution EPS

  3. Which Bulb Is Right for You? (High-Resolution JPG Billboard) | Department

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    of Energy JPG Billboard) Which Bulb Is Right for You? (High-Resolution JPG Billboard) HIgh-resolution JPG of billboard reading, 'Which bulb is right for you? Save energy, save money. Energysaver.gov.' DoE_Billboard_Which_Bulb.jpg (1.94 MB) More Documents & Publications Which Bulb Is Right for You? (High-Resolution EPS Billboard) Which Bulb Is Right for You? (Low-Resolution JPG Billboard) Goodbye, Watts. Hello, Lumens. (High-Resolution JPG

  4. Lighting Choices to Save You Money | Department of Energy

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    used light fixtures or bulbs with models that have earned the ENERGY STAR, you can save 75 each year. New lighting standards took effect in 2012, and money-saving options...

  5. Lighting Developments to 2030

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    Lighting Choices to Save You Money Lighting Choices to Save You Money This Energy 101 video explores the different lighting options available to consumers. Light your home using the same amount of light for less money. An average household dedicates about 5% of its energy budget to lighting. Switching to energy-efficient lighting is one of the fastest ways to cut your energy bills. By replacing your home's five most frequently used light fixtures or bulbs with models that have earned the ENERGY

  6. Brighter Lights, Safer Streets | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    The new lights will also cut greenhouse gas emissions by 719 tons. Mayor Vincent Gray, ... traffic signals with LED bulbs, and Mayor Gray said their new goal is to use the energy ...

  7. 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.

  8. Lighting the Way with Compact Fluorescent Lighting | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Lighting the Way with Compact Fluorescent Lighting Lighting the Way with Compact Fluorescent Lighting April 28, 2009 - 5:00am Addthis John Lippert There is a major push today to get homeowners to adopt compact fluorescent lamp (CFL) light bulbs. They have been on the market for nearly three decades, and many homeowners still do not use them widely. But the tide is definitely turning. Their availability and the percentage of homeowners familiar with the technology and purchasing them for their

  9. Cheyenne Light, Fuel and Power (Electric)- Residential Energy Efficiency Rebate Program

    Office of Energy Efficiency and Renewable Energy (EERE)

    Cheyenne Light, Fuel and Power offers incentives to electric customers who wish to install energy efficient equipment in participating homes. Incentives are available for CFL and LED light bulbs,...

  10. Frequently Asked Questions: Lighting Choices to Save You Money...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    ... Newer lighting choices are available to save you money. Q: When will the new bulbs be phased in? A: Newer energy-saving lightbulb choices that save about 25% to 75% in energy costs ...

  11. LED Lighting on the National Mall | Department of Energy

    Energy.gov (indexed) [DOE]

    "Using energy-efficient LED light bulbs is an important way Americans can save money by saving energy," said Secretary Chu. "Investing in an American economy that is built to ...

  12. Slideshow: Flipping the Switch on LED Lighting for the National...

    Energy.gov (indexed) [DOE]

    "Using energy-efficient LED light bulbs is an important way Americans can save money by saving energy," said Secretary Chu. "Investing in an American economy that is built to ...

  13. Randolph EMC- Commercial and Industrial Efficient Lighting Rebate Program

    Office of Energy Efficiency and Renewable Energy (EERE)

    Commercial and industrial members who upgrade to energy-efficient light bulbs which meet Randolph EMC's standards are eligible for a prescriptive incentive payment. The cooperative will provide a...

  14. Guide to Energy Efficient Lighting

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    CFLs Although CFLs have been available for residential use since the 1980s, they have made signifcant strides in quality and popularity in recent years. Today, CFLs are the most cost-effective, energy-effcient choice readily available on the market. A CFL produces the same amount of light as a comparable incan- descent, but uses 75% less energy, produces 75% less heat, and lasts up to 10 times longer than an incandescent bulb. CFLs come in many sizes and shapes. Three-way CFL bulbs and dimmer-

  15. Microwave-driven ultraviolet light sources

    DOE Patents [OSTI]

    Manos, Dennis M.; Diggs, Jessie; Ametepe, Joseph D.

    2002-01-29

    A microwave-driven ultraviolet (UV) light source is provided. The light source comprises an over-moded microwave cavity having at least one discharge bulb disposed within the microwave cavity. At least one magnetron probe is coupled directly to the microwave cavity.

  16. Chapter 21: Residential Lighting Evaluation Protocol

    SciTech Connect (OSTI)

    Dimetrosky, S.; Parkinson, K.; Lieb, N.

    2015-02-01

    In recent years, residential lighting has represented a significant share of ratepayer-funded energy-efficiency electricity savings. Utilities have achieved the majority of these savings by promoting the purchase and installation of compact fluorescent lamps (CFLs), both standard 'twister' bulbs and specialty CFLs such as reflectors, A-Lamps, globes, and dimmable lights.

  17. Luminescent Concentration of Diffuse Light

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    Lumens and the Lighting Facts Label Lumens and the Lighting Facts Label Energy 101 Lumens: The new way to shop for light lighting_sub.jpg When you're shopping for lightbulbs, compare lumens to be sure you're getting the amount of light, or level of brightness, you want. The Lighting Facts Label will help. This new label will make it easy to compare bulb brightness, color, life, and estimated operating cost for the year. Buy Lumens, Not Watts In the past, we bought lightbulbs based on how much

  18. DOE Successfully Resolves Three Enforcement Cases and Files Yet...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Successfully Resolves Three Enforcement Cases and Files Yet Another DOE Successfully ... and lighting products meet the energy and water efficiency levels required by law. ...

  19. Energy 101: Lighting Choices | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Lighting Choices Energy 101: Lighting Choices Addthis Description In this edition of Energy 101, we discuss lighting choices. People have been using the same light bulb since Thomas Edison invented it about 130 years ago. Today, there are more lighting options in stores that will save you energy and money. Text Version Below is the text version for the Energy 101: Lighting Choices video: The video opens with "Energy 101: Lighting Choices." This is followed by shots of a variety of

  20. Which Bulb Is Right for You? (Low-Resolution JPG Billboard) ...

    Energy Savers

    Low-resolution JPG of billboard reading, 'Which bulb is right for you? Save energy, save money. Energysaver.gov. DoEBillboardWhichBulbweb.jpg (199.94 KB) More Documents & ...

  1. Lumens: The new way to shop for light

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    r a d i t i o n a l I n c a n d e s c e n t W a t t s L u m e n s ( B r i g h t n e s s ) LUMENS: THE NEW WAY TO SHOP FOR LIGHT Choose Your Next Light Bulb for the Brightness You ...

  2. Lighting Choices - White Background | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    all_bulbs_hires_web.eps (32.46 MB

  3. Promising Technology: Retrofit Lights to Light-Emitting Diodes in Refrigerators

    Energy.gov [DOE]

    LEDs increase in efficacy at lower temperatures, in contrast with conventional fluorescents. The low temperatures in display cases, therefore, make this an attractive application of LEDs to reduce energy consumption. In addition to saving lighting energy, an LED retrofit can potentially reduce the cooling load in a display case because LEDs emit less heat than do fluorescent bulbs.

  4. Incandescent Lighting Basics | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Incandescent Lighting Basics Incandescent Lighting Basics August 16, 2013 - 10:00am Addthis Incandescent lamps consist of a wire filament inside a glass bulb that is usually filled with inert gas, and they produce light when an electric current heats the filament to a high temperature. Incandescent lamps have a low efficacy (10-17 lumens per watt) compared with other lighting options-because most of the energy released is in the form of heat rather than light-and a short average operating life

  5. Light Shines on Better Budget for Glendale, Arizona | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Shines on Better Budget for Glendale, Arizona Light Shines on Better Budget for Glendale, Arizona July 20, 2010 - 10:00am Addthis A LED light bulb is installed in one of Glendale, Ariz.'s traffic signals. | Photo courtesy of Glendale A LED light bulb is installed in one of Glendale, Ariz.'s traffic signals. | Photo courtesy of Glendale Glendale, Ariz., like many other cities, was facing several problems: a tight budget and aging buildings using outdated lighting - making repairs difficult and

  6. Choosing Energy-Saving Lighting Products Saves You Money | Department of

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Energy Energy-Saving Lighting Products Saves You Money Choosing Energy-Saving Lighting Products Saves You Money May 30, 2012 - 11:58am Addthis Eric Barendsen Energy Technology Program Specialist, Office of Energy Efficiency and Renewable Energy If you've been to a home improvement store lately, you've probably noticed more and more energy-saving light bulbs available on the shelves. Traditional incandescent light bulbs give off about 90% of the energy they use in the form of heat, and only

  7. When to Turn Off Your Lights | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Electricity & Fuel » Lighting » When to Turn Off Your Lights When to Turn Off Your Lights The cost effectiveness of when to turn off lights depends on the type of lights and the price of electricity. | Photo courtesy of ©iStockphoto.com/kyoshino. The cost effectiveness of when to turn off lights depends on the type of lights and the price of electricity. | Photo courtesy of ©iStockphoto.com/kyoshino. The cost effectiveness of when to turn off lights depends on the type of bulb and the

  8. Lighting Choices to Save You Money | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Lighting Choices to Save You Money Lighting Choices to Save You Money This Energy 101 video explores the different lighting options available to consumers. Light your home using the same amount of light for less money. An average household dedicates about 5% of its energy budget to lighting. Switching to energy-efficient lighting is one of the fastest ways to cut your energy bills. By replacing your home's five most frequently used light fixtures or bulbs with models that have earned the ENERGY

  9. What Is NQa-1?

    Office of Environmental Management (EM)

    Violations | Department of Energy Westinghouse Pays $50,000 Civil Penalty to Resolve Light Bulb Efficiency Violations Westinghouse Pays $50,000 Civil Penalty to Resolve Light Bulb Efficiency Violations December 13, 2010 - 2:12pm Addthis The Department of Energy has successfully resolved the enforcement case against Westinghouse Lighting Corporation for failure to certify its light bulbs as compliant with DOE's federal efficiency requirements and for the sale of at least 29,000 general

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

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Company to allow the companies to resume sales of an incandescent reflector lamp ... issued Notices allowing Fuzhou and Westinghouse to resume distribution of those products. ...

  11. DOE Withdraws the Energy Star Label from 34 Compact Fluorescent Light Bulbs

    Energy.gov [DOE]

    Washington, DC - On January 25th, the General Counsel notified 25 manufacturers that the Department of Energy has withdrawn their right to use the Energy Star label on 34 different models of...

  12. Lumens and the Lighting Facts Label | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Lumens and the Lighting Facts Label Lumens and the Lighting Facts Label Energy 101 Lumens: The new way to shop for light lighting_sub.jpg When you're shopping for lightbulbs, compare lumens to be sure you're getting the amount of light, or level of brightness, you want. The Lighting Facts Label will help. This new label will make it easy to compare bulb brightness, color, life, and estimated operating cost for the year. Buy Lumens, Not Watts In the past, we bought lightbulbs based on how much

  13. Time-Resolved FTIR

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    Resolved FTIR - Sandia Energy Energy Search Icon Sandia Home Locations Contact Us Employee Locator Energy & Climate Secure & Sustainable Energy Future Stationary Power Energy Conversion Efficiency Solar Energy Wind Energy Water Power Supercritical CO2 Geothermal Natural Gas Safety, Security & Resilience of the Energy Infrastructure Energy Storage Nuclear Power & Engineering Grid Modernization Battery Testing Nuclear Energy Defense Waste Management Programs Advanced Nuclear Energy

  14. Spatially resolved spectral-imaging device

    DOE Patents [OSTI]

    Bloom, Joshua Simon; Tyson, John Anthony

    2016-02-09

    A spatially resolved spectral device comprising a dispersive array to receive an incident light comprising a principal ray. The dispersive array comprising a plurality of dichroic layers, each of the plurality of dichroic layers disposed in a path of a direction of the principal ray. Each of the plurality of dichroic layers configured to at least one of reflect or transmit a different wavelength range of the incident light. The device further comprising a detection array operatively coupled with the dispersive array. The detection array comprising a photosensitive component including a plurality of detection pixels, each of the plurality of detection pixels having a light-receiving surface disposed parallel to the direction of the principal ray to detect a respective one of the different wavelength ranges of incident light reflected from a corresponding one of the plurality of dichroic layers.

  15. Shedding new light on LEDs | Argonne National Laboratory

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    new light on LEDs By Louise Lerner * April 18, 2012 Tweet EmailPrint LEDs, or light-emitting diodes, are the secret behind your iPhone screen, flatscreen TVs, Christmas lights and crosswalk signals. They can last longer and save more energy than traditional incandescent bulbs. But there is one thing they aren't very good at: efficiently emitting light in the yellow-green spectrum. Argonne and Purdue researchers are peering deep into the atomic structure and composition of LED lights in order to

  16. Time-Resolved

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    Ultrafast Spectroscopy of Warm Dense Matter Real-Time Chemical Imaging of Bacterial Biofilm Development Using Light to Control How X Rays Interact with Matter X-Ray Imaging of...

  17. Compact Fluorescent Lighting in America: Lessons Learned on the Way to

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Market | Department of Energy Compact Fluorescent Lighting in America: Lessons Learned on the Way to Market Compact Fluorescent Lighting in America: Lessons Learned on the Way to Market This report reviews efforts to increase market acceptance of CFLs and barriers to that acceptance. cfl_lessons_learned_web.pdf (922.25 KB) More Documents & Publications Consumer Light Bulb Changes: Briefing and Resources for Media and Retailers Life-Cycle Assessment of Energy and Environmental Impacts of

  18. DOE Launches Change a Light, Change the World Campaign | Department of

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Energy Change a Light, Change the World Campaign DOE Launches Change a Light, Change the World Campaign October 3, 2007 - 2:50pm Addthis Encourages Americans to Pledge to Change One Light to an Efficient Compact Fluorescent Lightbulb WASHINGTON, DC - U.S. Department of Energy (DOE) Secretary Samuel W. Bodman today launched the 2007 Change a Light, Change the World campaign encouraging every American to change at least one light at home to an ENERGY STAR® Compact Fluorescent Light bulb

  19. Lighting: The Killer App of Village Power

    SciTech Connect (OSTI)

    1997-12-01

    This paper looks at lighting systems as the major market for village level power generation. To the consumer it is something which is needed, could come from a much friendlier source, and the issues of affordability, convenience, and reliability are important. To the supplier lighting has an enormous range of potential customers, it opens the opportunity for other services, and even small demand can give big returns. Because the efficiency of the light source is critical to the number of lights which a fixed power supply can drive, it is important to pick the proper type of bulb to use in this system. The paper discusses test results from an array of fluorescent and incadescent lamps, compared with a kerosene lamp. Low wattage fluorescents seem to perform the best.

  20. Metacapacitors for LED Lighting: Metacapacitors

    SciTech Connect (OSTI)

    2010-09-02

    ADEPT Project: The CUNY Energy Institute is developing less expensive, more efficient, smaller, and longer-lasting power converters for energy-efficient LED lights. LEDs produce light more efficiently than incandescent lights and last significantly longer than compact fluorescent bulbs, but they require more sophisticated power converter technology, which increases their cost. LEDs need more sophisticated converters because they require a different type of power (low voltage direct current, or DC) than what's generally supplied by power outlets. The CUNY Energy Institute is developing sophisticated power converters for LEDs that contain capacitors made from new, nanoscale materials. Capacitors are electrical components that are used to store energy. CUNY's unique capacitors are configured with advanced power circuits to more efficiently control and convert power to the LED lighting source. They also eliminate the need for large magnetic components, instead relying on networks of capacitors that can be easily printed on plastic substrate. CUNY's prototype LED power converter already meets DOE's 2020 projections for the energy efficiency of LED power converters.

  1. TIME-RESOLVED VIBRATIONAL SPECTROSCOPY

    SciTech Connect (OSTI)

    Andrei Tokmakoff, MIT; Paul Champion, Northeastern University; Edwin J. Heilweil, NIST; Keith A. Nelson, MIT; Larry Ziegler, Boston University

    2009-05-14

    This document contains the Proceedings from the 14th International Conference on Time-Resolved Vibrational Spectroscopy, which was held in Meredith, NH from May 9-14, 2009. The study of molecular dynamics in chemical reaction and biological processes using time-resolved spectroscopy plays an important role in our understanding of energy conversion, storage, and utilization problems. Fundamental studies of chemical reactivity, molecular rearrangements, and charge transport are broadly supported by the DOE’s Office of Science because of their role in the development of alternative energy sources, the understanding of biological energy conversion processes, the efficient utilization of existing energy resources, and the mitigation of reactive intermediates in radiation chemistry. In addition, time-resolved spectroscopy is central to all five of DOE’s grand challenges for fundamental energy science. The Time-Resolved Vibrational Spectroscopy conference is organized biennially to bring the leaders in this field from around the globe together with young scientists to discuss the most recent scientific and technological advances. The latest technology in ultrafast infrared, Raman, and terahertz spectroscopy and the scientific advances that these methods enable were covered. Particular emphasis was placed on new experimental methods used to probe molecular dynamics in liquids, solids, interfaces, nanostructured materials, and biomolecules.

  2. Tips: Lighting | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Although they can initially cost more than traditional incandescent bulbs, during their lifetime they save you money, because they use less energy. Energy-Saving (also called ...

  3. Radioluminescent lighting for Alaskan runway lighting and marking

    SciTech Connect (OSTI)

    Jensen, G.A.; Leonard, L.E.

    1985-03-01

    Alaska and other far northern areas have special logistical, environmental, and economic problems that make radioluminescent (RL) lighting applications, especially in the area of airport lighting, an attractive alternative to electrical systems and flare pots. Tests and demonstrations of prototype systems conducted in Alaska over the past two years have proved the basic technological worth of RL airport lighting systems for civilian and military use. If regulatory issues and other factors identified during these tests can be favorably resolved and if the system and its components can be refined through production engineering, attractive applications for RL airfield lighting systems in Alaska and other remote locations could result.

  4. Commercial Lighting

    Energy.gov [DOE]

    Commercial lighting accounts for more than 20 percent of total commercial building energy use. The Energy Department works to reduce lighting energy use through research and deployment.

  5. Haier Repair Confusion Resolved | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Haier Repair Confusion Resolved Haier Repair Confusion Resolved April 26, 2010 - 12:28pm Addthis On January 7, 2010, DOE entered into a Consent Decree with Haier America regarding a problem with four models of Haier freezers that resulted in those freezers not achieving their advertised energy efficiency. DOE recently became aware that some consumers eligible for repairs were incorrectly told that they were not eligible. Haier has resolved the problem, and consumers are encouraged to contact

  6. Integrated experimental setup for angle resolved photoemission...

    Office of Scientific and Technical Information (OSTI)

    Integrated experimental setup for angle resolved photoemission spectroscopy of transuranic materials Citation Details In-Document Search Title: Integrated experimental setup for...

  7. Energy Efficiency Through Lighting Upgrades

    SciTech Connect (OSTI)

    Berst, Kara; Howeth, Maria

    2013-02-26

    Lighting upgrades including neon to LED, incandescent to CFL's and T-12 to T-8 and T-5's were completed through this grant. A total of 16 Chickasaw nation facilities decreased their carbon footprint because of these grant funds. Calculations used were based on comparing the energy usage from the previous year's average and the current energy usage. For facilities without a full year's set of energy bills, the month after installation was compared to the same month from the previous year. Overall, the effect the lighting change-outs had for the gaming centers and casinos far exceeded expectations. For the Madill Gaming Center; both an interior and exterior upgrade was performed which resulted in a 31% decrease in energy consumption. This same reduction was seen in every facility that participated in the grant. Just by simply changing out light bulbs to newer energy efficient equivalents, a decrease in energy usage can be achieved and this was validated by the return on investment seen at Chickasaw Nation facilities. Along with the technical project tasks were awareness sessions presented at Chickasaw Head Starts. The positive message of environmental stewardship was passed down to head start students and passed along to Chickasaw employees. Excitement was created in those that learned what they could do to help reduce their energy bills and many followed through and took the idea home. For a fairy low cost, the general public can also use this technique to lower their energy consumption both at home and at work. Although the idea behind the project was somewhat simple, true benefits have been gained through environmental awareness and reductions of energy costs.

  8. Tips: Lighting | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    a similar shape to traditional incandescent bulbs. CFLs contain a very small amount of mercury and require special handling if they are broken. CFLs should be recycled at the end...

  9. Fluorescent Lighting | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    They also last about 10 times longer (7,000-24,000 hours). The two general types of ... Although CFLs cost a bit more than comparable incandescent bulbs, they last 6-15 times as ...

  10. Instrument uncertainty effect on calculation of absolute humidity using dewpoint, wet-bulb, and relative humidity sensors

    SciTech Connect (OSTI)

    Slayzak, S.J.; Ryan, J.P.

    1998-04-01

    As part of the US Department of Energy`s Advanced Desiccant Technology Program, the National Renewable Energy Laboratory (NREL) is characterizing the state-of-the-art in desiccant dehumidifiers, the key component of desiccant cooling systems. The experimental data will provide industry and end users with independent performance evaluation and help researchers assess the energy savings potential of the technology. Accurate determination of humidity ratio is critical to this work and an understanding of the capabilities of the available instrumentation is central to its proper application. This paper compares the minimum theoretical random error in humidity ratio calculation for three common measurement methods to give a sense of the relative maximum accuracy possible for each method assuming systematic errors can be made negligible. A series of experiments conducted also illustrate the capabilities of relative humidity sensors as compared to dewpoint sensors in measuring the grain depression of desiccant dehumidifiers. These tests support the results of the uncertainty analysis. At generally available instrument accuracies, uncertainty in calculated humidity ratio for dewpoint sensors is determined to be constant at approximately 2%. Wet-bulb sensors range between 2% and 6% above 10 g/kg (4%--15% below), and relative humidity sensors vary between 4% above 90% rh and 15% at 20% rh. Below 20% rh, uncertainty for rh sensors increases dramatically. Highest currently attainable accuracies bring dewpoint instruments down to 1% uncertainty, wet bulb to a range of 1%--3% above 10 g/kg (1.5%--8% below), and rh sensors between 1% and 5%.

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

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    You Money The savings can add up. Upgrading 15 inefficient incandescent bulbs in your home could save you about 50 per year. Since most of the bulbs also have longer life spans, ...

  12. Estimate of federal relighting potential and demand for efficient lighting products

    SciTech Connect (OSTI)

    Shankle, S.A.; Dirks, J.A.; Elliott, D.B.; Richman, E.E.; Grover, S.E.

    1993-11-01

    The increasing level of electric utility rebates for energy-efficient lighting retrofits has recently prompted concern over the adequacy of the market supply of energy-efficient lighting products (Energy User News 1991). In support of the U.S. Department of Energy`s Federal Energy Management Program, Pacific Northwest Laboratory (PNL) has developed an estimate of the total potential for energy-efficient lighting retrofits in federally owned buildings. This estimate can be used to address the issue of the impact of federal relighting projects on the supply of energy-efficient lighting products. The estimate was developed in 1992, using 1991 data. Any investments in energy-efficient lighting products that occurred in 1992 will reduce the potential estimated here. This analysis proceeds by estimating the existing stock of lighting fixtures in federally owned buildings. The lighting technology screening matrix is then used to determine the minimum life-cycle cost retrofit for each type of existing lighting fixture. Estimates of the existing stock are developed for (1) four types of fluorescent lighting fixtures (2-, 3-, and 4-lamp, F40 4-foot fixtures, and 2-lamp, F96 8-foot fixtures, all with standard magnetic ballasts); (2) one type of incandescent fixture (a 75-watt single bulb fixture); and (3) one type of exit sign (containing two 20-watt incandescent bulbs). Estimates of the existing stock of lighting fixtures in federally owned buildings, estimates of the total potential demand for energy-efficient lighting products if all cost-effective retrofits were undertaken immediately, and total potential annual energy savings (in MWh and dollars), the total investment required to obtain the energy savings and the present value of the efficiency investment, are presented.

  13. Light Source

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    a Light Source Data and Analysis Framework at NERSC Jack Deslippe, Shane Canon, Eli Dart, Abdelilah Essiari, Alexander Hexemer, Dula Parkinson, Simon Patton, Craig Tull + Many More The ALS Data Needs September 21, 2010 - NIST (MD) Light source data volumes are growing many times faster than Moore's law. ● Light source luminosity ● Detector resolution & rep-rates ● Sample automation BES user facilities serve 10,000 scientists and engineers every year. Mostly composed of many small

  14. Lighting Renovations

    Energy.gov [DOE]

    When undertaking a lighting renovation in a Federal building, daylighting is the primary renewable energy opportunity. Photovoltaics (PV) also present an excellent opportunity. While this guide...

  15. Cerenkov Light

    SciTech Connect (OSTI)

    Slifer, Karl

    2013-06-13

    The bright blue glow from nuclear reactors is Cerenkov light. Karl Slifer describes how nuclear physicists can use this phenomenon to study the nucleus of the atom.

  16. Cerenkov Light

    ScienceCinema (OSTI)

    Slifer, Karl

    2014-05-22

    The bright blue glow from nuclear reactors is Cerenkov light. Karl Slifer describes how nuclear physicists can use this phenomenon to study the nucleus of the atom.

  17. Residential Lighting

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    & Events Expand News & Events Skip navigation links Residential Residential Lighting Energy Star Appliances Consumer Electronics Heat Pump Water Heaters Electric Storage Water...

  18. Time-Resolved Photoluminescence and Photovoltaics

    SciTech Connect (OSTI)

    Metzger, W. K.; Ahrenkiel, R. K.; Dippo, P.; Geisz, J.; Wanlass, M. W.; Kurtz, S.

    2005-01-01

    The time-resolved photoluminescence (TRPL) technique and its ability to characterize recombination in bulk photovoltaic semiconductor materials are reviewed. Results from a variety of materials and a few recent studies are summarized and compared.

  19. Basic Research Needs for Solid-State Lighting. Report of the Basic Energy Sciences Workshop on Solid-State Lighting, May 22-24, 2006

    SciTech Connect (OSTI)

    Phillips, J. M.; Burrows, P. E.; Davis, R. F.; Simmons, J. A.; Malliaras, G. G.; So, F.; Misewich, J.A.; Nurmikko, A. V.; Smith, D. L.; Tsao, J. Y.; Kung, H.; Crawford, M. H.; Coltrin, M. E.; Fitzsimmons, T. J.; Kini, A.; Ashton, C.; Herndon, B.; Kitts, S.; Shapard, L.; Brittenham, P. W.; Vittitow, M. P.

    2006-05-24

    The workshop participants enthusiastically concluded that the time is ripe for new fundamental science to beget a revolution in lighting technology. SSL sources based on organic and inorganic materials have reached a level of efficiency where it is possible to envision their use for general illumination. The research areas articulated in this report are targeted to enable disruptive advances in SSL performance and realization of this dream. Broad penetration of SSL technology into the mass lighting market, accompanied by vast savings in energy usage, requires nothing less. These new ?good ideas? will be represented not by light bulbs, but by an entirely new lighting technology for the 21st century and a bright, energy-efficient future indeed.

  20. Resolving transitions in the mesoscale domain configuration in...

    Office of Scientific and Technical Information (OSTI)

    SciTech Connect Search Results Journal Article: Resolving ... Citation Details In-Document Search Title: Resolving ... Resource Relation: Journal Name: Scientific Reports; Journal ...

  1. Spectral characteristics of time resolved magnonic spin Seebeck...

    Office of Scientific and Technical Information (OSTI)

    Spectral characteristics of time resolved magnonic spin Seebeck effect Citation Details In-Document Search Title: Spectral characteristics of time resolved magnonic spin Seebeck ...

  2. Time-resolved carrier distributions in graphene (Conference)...

    Office of Scientific and Technical Information (OSTI)

    Time-resolved carrier distributions in graphene Citation Details In-Document Search Title: Time-resolved carrier distributions in graphene You are accessing a document from the ...

  3. A Spatially Resolving X-ray Crystal Spectrometer for Measurement...

    Office of Scientific and Technical Information (OSTI)

    394 PPPL- 4394 A Spatially Resolving X-ray Crystal Spectrometer for Measurement of ... Fusion Links A spatially resolving x-ray crystal spectrometer for measurement of ...

  4. Development of a Spatially Resolving X-Ray Crystal Spectrometer...

    Office of Scientific and Technical Information (OSTI)

    Development of a Spatially Resolving X-Ray Crystal Spectrometer For Measurement of ... Links Development of a spatially resolving x-ray crystal spectrometer for measurement of ...

  5. Development Of a Spatially Resolving X-ray Crystal Spectrometer...

    Office of Scientific and Technical Information (OSTI)

    Technical Report: Development Of a Spatially Resolving X-ray Crystal Spectrometer For ... Title: Development Of a Spatially Resolving X-ray Crystal Spectrometer For Measurement Of ...

  6. Showerhead Manufacturer Agrees to Civil Penalty to Resolve Enforcement...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Showerhead Manufacturer Agrees to Civil Penalty to Resolve Enforcement Action Showerhead Manufacturer Agrees to Civil Penalty to Resolve Enforcement Action July 18, 2011 - 2:06pm ...

  7. New Code Compliance Briefs Assist in Resolving Codes and Standards...

    Energy Savers

    New Code Compliance Briefs Assist in Resolving Codes and Standards Concerns in Energy Innovations New Code Compliance Briefs Assist in Resolving Codes and Standards Concerns in ...

  8. Resolving Code and Standard Barriers to Building America Innovations...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Resolving Code and Standard Barriers to Building America Innovations - 2014 BTO Peer Review Resolving Code and Standard Barriers to Building America Innovations - 2014 BTO Peer ...

  9. Energy resolved X-ray grating interferometry

    SciTech Connect (OSTI)

    Thuering, T.; Stampanoni, M.; Institute for Biomedical Engineering, Swiss Federal Institute of Technology, Zurich ; Barber, W. C.; Iwanczyk, J. S.; Seo, Y.; Alhassen, F.

    2013-05-13

    Although compatible with polychromatic radiation, the sensitivity in X-ray phase contrast imaging with a grating interferometer is strongly dependent on the X-ray spectrum. We used an energy resolving detector to quantitatively investigate the dependency of the noise from the spectral bandwidth and to consequently optimize the system-by selecting the best energy band matching the experimental conditions-with respect to sensitivity maximization and, eventually, dose. Further, since theoretical calculations of the spectrum are usually limited due to non-ideal conditions, an energy resolving detector accurately quantifies the spectral changes induced by the interferometer including flux reduction and beam hardening.

  10. RESOLVED: Projectb filesystem outage July 9, 2012

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    RESOLVED: Projectb filesystem outage July 9, 2012 RESOLVED: Projectb filesystem outage July 9, 2012 July 9, 2012 The projectb filesystem had a hardware failure that potentially generated I/O errors. The filesystem logs indicate that the earliest abnormal event on the filesystem occurred at 9:19AM and the filesystem was taken down for maintenance at 10:42AM. The filesystem returned to service at 11:20AM. Jobs running on the cluster would not have been able to read from or write to the projectb

  11. Commercial Lighting and LED Lighting Incentives | Department...

    Energy.gov (indexed) [DOE]

    Schools Institutional Savings Category Lighting Lighting ControlsSensors Other EE LED Lighting Maximum Rebate Up to 100% of cost; incentives that exceed 5,000 should be...

  12. Light's Darkness

    ScienceCinema (OSTI)

    Padgett, Miles [University of Glasgow, Glasgow, Scotland

    2010-01-08

    Optical vortices and orbital angular momentum are currently topical subjects in the optics literature. Although seemingly esoteric, they are, in fact, the generic state of light and arise whenever three or more plane waves interfere. To be observed by eye the light must be monochromatic. Laser speckle is one such example, where the optical energy circulates around each black spot, giving a local orbital angular momentum. This talk with report three on-going studies. First, when considering a volume of interfering waves, the laser specs map out threads of complete darkness embedded in the light. Do these threads form loops? Links? Or even knots? Second, when looking through a rapidly spinning window, the image of the world on the other side is rotated: true or false? Finally, the entanglement of orbital angular momentum states means measuring how the angular position of one photons sets the angular momentum of another: is this an angular version of the EPR (Einstein, Podolsky, and Rosen) paradox?

  13. Hybrid Solar Lighting Provides Energy Savings and Reduces Waste Heat

    SciTech Connect (OSTI)

    Lapsa, Melissa Voss; Maxey, L Curt; Earl, Dennis Duncan; Beshears, David L; Ward, Christina D; Parks, James Edgar

    2006-01-01

    ABSTRACT Artificial lighting is the largest component of electricity use in commercial U.S. buildings. Hybrid solar lighting (HSL) provides an exciting new means of reducing energy consumption while also delivering significant ancillary benefits associated with natural lighting in buildings. As more than half of all federal facilities are in the Sunbelt region (defined as having an average direct solar radiation of greater than 4 kWh/m2/day) and as more than half of all square footage available in federal buildings is also in the Sunbelt, HSL is an excellent technology fit for federal facilities. The HSL technology uses a rooftop, 4-ft-wide dish and secondary mirror that track the sun throughout the day (Fig. 1). The collector system focuses the sunlight onto 127 optical fibers. The fibers serve as flexible light pipes and are connected to hybrid light fixtures that have special diffusion rods that spread out the light in all directions. One collector powers about eight hybrid light fixtures-which can illuminate about 1,000 square feet. The system tracks at 0.1 accuracy, required by the two-mirror geometry to keep the focused beam on the fiber bundle. When sunlight is plentiful, the optical fibers in the luminaires provide all or most of the light needed in an area. During times of little or no sunlight, a sensor controls the intensity of the artificial lamps to maintain a desired illumination level. Unlike conventional electric lamps, the natural light produces little to no waste heat and is cool to the touch. This is because the system's solar collector removes the infrared light-the part of the spectrum that generates a lot of the heat in conventional bulbs-from the sunlight.

  14. Departments of Energy and Defense Launch ENERGY STAR® Operation Change Out- the Military Challenge Campaign to Promote the Use of Energy Efficient Light Bulbs

    Office of Energy Efficiency and Renewable Energy (EERE)

    CAMP LEJEUNE, NC - U.S. Secretary of Energy Samuel W. Bodman on Earth Day launched a joint Department of Energy (DOE) and Defense campaign to challenge military bases nationwide to change their...

  15. Magnetoelectroluminescence of organic heterostructures: Analytical theory and spectrally resolved measurements

    DOE PAGES-Beta [OSTI]

    Liu, Feilong; Kelley, Megan R.; Crooker, Scott A.; Nie, Wanyi; Mohite, Aditya D.; Ruden, P. Paul; Los Alamos National Lab.; Smith, Darryl L.; Los Alamos National Lab.

    2014-12-22

    The effect of a magnetic field on the electroluminescence of organic light emitting devices originates from the hyperfine interaction between the electron/hole polarons and the hydrogen nuclei of the host molecules. In this paper, we present an analytical theory of magnetoelectroluminescence for organic semiconductors. To be specific, we focus on bilayer heterostructure devices. In the case we are considering, light generation at the interface of the donor and acceptor layers results from the formation and recombination of exciplexes. The spin physics is described by a stochastic Liouville equation for the electron/hole spin density matrix. By finding the steady-state analytical solutionmore » using Bloch-Wangsness-Redfield theory, we explore how the singlet/triplet exciplex ratio is affected by the hyperfine interaction strength and by the external magnetic field. In order to validate the theory, spectrally resolved electroluminescence experiments on BPhen/m-MTDATA devices are analyzed. With increasing emission wavelength, the width of the magnetic field modulation curve of the electroluminescence increases while its depth decreases. Furthermore, these observations are consistent with the model.« less

  16. National Lighting Energy Consumption

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Lighting Energy National Lighting Energy Consumption Consumption 390 Billion kWh used for lighting in all 390 Billion kWh used for lighting in all commercial buildings in commercial buildings in 2001 2001 LED (<.1% ) Incandescent 40% HID 22% Fluorescent 38% Lighting Energy Consumption by Lighting Energy Consumption by Breakdown of Lighting Energy Breakdown of Lighting Energy Major Sector and Light Source Type Major Sector and Light Source Type Source: Navigant Consulting, Inc., U.S. Lighting

  17. RESOLVING THE BARYON-FRACTION PROFILE IN LENSING GALAXIES

    SciTech Connect (OSTI)

    Leier, Dominik; Ferreras, Ignacio; Saha, Prasenjit; Falco, Emilio E.

    2011-10-20

    The study of the distribution of baryonic matter within dark halos enriches our understanding of galaxy formation. We show the radial dependence of stellar baryon-fraction curves derived for 21 lensing galaxies from the CfA-Arizona Space Telescope LEns Survey (CASTLES) by means of stellar population synthesis and pixel-based mass reconstruction. The sample covers a stellar mass range of M{sub s} {approx_equal} 2 x 10{sup 9}-3 x 10{sup 11} M{sub sun} (solar masses) which corresponds to a total enclosed mass range of M{sub L} {approx_equal} 7 x 10{sup 9}-3 x 10{sup 12} M{sub sun} on radial scales from 0.25R{sub e} to 5R{sub e} (effective radii). By examining the M{sub s} and M{sub L} dependence on radial distance to the center of each galaxy, we find that there are pairs of lenses on small to intermediate mass scales which approach at large radii the same values for their enclosed total mass but exhibit very different stellar masses and stellar baryon fractions. This peculiar behavior subsides for the most massive lensing galaxies. All the baryon-fraction profiles show that the dark matter halo overtakes the stellar content between 1.5 and 2.5R{sub e}. At 3R{sub e} most of the stellar component is enclosed. We find evidence for a stellar baryon fraction steadily declining over the full mass range. Furthermore, we shed light on the Fundamental Plane puzzle by showing that the slope of the M{sub L} (< R)-to-M{sub s} (< R) relation approaches the mass-to-light relation of recent Fundamental Plane studies at large radii. We also introduce novel concentration indices c = R90/R50 for stellar and total mass profiles (i.e., the ratio of radii enclosing 90% and 50% of the stellar or total mass). We show that the value c = 2.6 originally determined by light profiles which separates early-type galaxies from late-type galaxies also holds for stellar mass. In particular, less massive dark matter halos turn out to be influenced by the distribution of stellar matter on resolved

  18. Resolved: Hopper /scratch file system slow

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    Hopper /scratch file system slow Resolved: Hopper /scratch file system slow August 6, 2014 Symptom: Users have reported scripts hung when involving file copies from/to the /scratch file system, or jobs running in /scratch are slower than before since late last week. Workaround: If it is convenient, move your workflow to /scratch2 temporarily, avoid any reference to /scratch. It includes setting your input files directory, your batch job submission directory, your executable file location, and

  19. Light Show

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    9 Lightning - Nature's Light Show Lightning provides one of nature's most spectacular displays of energy. Though fascinating to observe, lightning can be dangerous and deadly. Protecting ARM instruments from lightning damage is vital. Putting equipment worth millions of dollars into open fields (Photo: NOAA) ARM Facilities Newsletter is published by Argonne National Laboratory, a multiprogram laboratory operated by The University of Chicago under contract W-31-109-Eng-38 with the U.S. Department

  20. Time-resolved serial crystallography captures high-resolution intermediates of photoactive yellow protein

    DOE PAGES-Beta [OSTI]

    Tenboer, Jason; Basu, Shibom; Zatsepin, Nadia; Pande, Kanupriya; Milathianaki, Despina; Frank, Matthias; Hunter, Mark; Boutet, Sebastien; Williams, Garth J.; Koglin, Jason E.; et al

    2014-12-05

    We report that serial femtosecond crystallography using ultrashort pulses from X-ray Free Electron Lasers (XFELs) offers the possibility to study light-triggered dynamics of biomolecules. Using microcrystals of the blue light photoreceptor, photoactive yellow protein, as a model system, we present high resolution, time-resolved difference electron density maps of excellent quality with strong features, which allow the determination of structures of reaction intermediates to 1.6 Å resolution. These results open the way to the study of reversible and non-reversible biological reactions on time scales as short as femtoseconds under conditions which maximize the extent of reaction initiation throughout the crystal.

  1. ADR Lunchtime Series - Mindfulness for Conflict Resolvers | Department...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    ADR Lunchtime Series - Mindfulness for Conflict Resolvers ADR Lunchtime Series - Mindfulness for Conflict Resolvers July 12, 2016 12:00PM to 1:30PM EDT U.S. Department of Energy ...

  2. A Spatially Resolving X-ray Crystal Spectrometer for Measurement...

    Office of Scientific and Technical Information (OSTI)

    A Spatially Resolving X-ray Crystal Spectrometer for Measurement of Ion-temperature and ... Citation Details In-Document Search Title: A Spatially Resolving X-ray Crystal ...

  3. Time-Resolved Optical Measurements of Shock-Induced Chemistry...

    Office of Scientific and Technical Information (OSTI)

    Time-Resolved Optical Measurements of Shock-Induced Chemistry in Energetic Materials. Citation Details In-Document Search Title: Time-Resolved Optical Measurements of Shock-Induced ...

  4. Civil Penalty Actions For Certification Violations Resolved | Department of

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Energy Civil Penalty Actions For Certification Violations Resolved Civil Penalty Actions For Certification Violations Resolved May 6, 2010 - 12:39pm Addthis Today, the Department of Energy announced that it had resolved civil penalty actions against four showerhead manufacturers for having violated the Department's water conservation certification regulations. To resolve these actions Zoe Industries, Altmans Products LLC, EZ-FLO International, and Watermark Designs Ltd. have now certified

  5. Randolph EMC- Agricultural Efficient Lighting Rebate Program

    Energy.gov [DOE]

    Agricultural members of Randolph EMC (REMC) who upgrade to energy-efficientCFL bulbs in agricultural facilities are eligible for an incentive to help cover the initial cost of installation. The...

  6. Resonant state expansion of the resolvent

    SciTech Connect (OSTI)

    Berggren, T.; Lind, P. )

    1993-02-01

    An analytic method of generating resonant state expansions from the standard completeness relation of nonrelativistic quantum mechanics is described and shown to reproduce the generalized completeness relations, earlier derived, involving resonant states. The method is then applied to the expansion of the resolvent (the complete Green's function), the symmetry properties of which [ital seem] to be destroyed if a conventional application of the completeness relations is made. These forms of expansions have a continuum term which contains symmetry-restoring contributions and can therefore never vanish identically, nor can it be neglected. The symmetry-conserving form of the expansion has a set of discrete terms which are identical in form to those of the Mittag-Leffler series for the resolvent. In addition, it contains a continuum contribution which in some cases vanishes identically, but in general does not. We illustrate these findings with numerical applictions in which the potential (a square well) is chosen so as to permit analytic evaluation of practically all functions and quantities involved.

  7. High resolving power spectrometer for beam analysis

    SciTech Connect (OSTI)

    Moshammer, H.W.; Spencer, J.E.

    1992-03-01

    We describe a system designed to analyze the high energy, closely spaced bunches from individual RF pulses. Neither a large solid angle nor momentum range is required so this allows characteristics that appear useful for other applications such as ion beam lithography. The spectrometer is a compact, double-focusing QBQ design whose symmetry allows the Quads to range between F or D with a correspondingly large range of magnifications, dispersion and resolving power. This flexibility insures the possibility of spatially separating all of the bunches along the focal plane with minimal transverse kicks and bending angle for differing input conditions. The symmetry of the system allows a simple geometric interpretationof the resolving power in terms of thin lenses and ray optics. We discuss the optics and the hardware that is proposed to measure emittance, energy, energy spread and bunch length for each bunch in an RF pulse train for small bunch separations. We also discuss how to use such measurements for feedback and feedforward control of these bunch characteristics as well as maintain their stability. 2 refs.

  8. Reading Municipal Light Department - Business Lighting Rebate...

    Energy.gov (indexed) [DOE]

    with Electronic Ballasts: 100fixture De-lamping: 4 - 9lamp Lighting Sensors: 20sensor LED Exit Signs: 20fixture Summary Reading Municipal Light Department (RMLD) offers...

  9. White Light Creation Architectures

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    Energy Frontier Research Centers: Solid-State Lighting Science Center for Frontiers of ... White Light Creation Architectures HomeEnergy ResearchEFRCsSolid-State Lighting Science ...

  10. Light Creation Materials

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    Energy Frontier Research Centers: Solid-State Lighting Science Center for Frontiers of ... Light Creation Materials HomeEnergy ResearchEFRCsSolid-State Lighting Science EFRC...

  11. light-emitting diode

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    ... Cost The high-brightness, rapidly pulsed, multicolor light-emitting diode (LED) driver delivers lighting performance that exceeds that of conventional (laserarc-light) sources ...

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

    Energy Savers

    The new energy-saving lightbulbs -- halogen incandescents, CFLs, and LEDs -- could save you about 50 per year when you replace 15 traditional incandescent bulbs in your home. ...

  13. Optical detection dental disease using polarized light

    DOE Patents [OSTI]

    Everett, Matthew J.; Colston, Jr., Billy W.; Sathyam, Ujwal S.; Da Silva, Luiz B.; Fried, Daniel

    2003-01-01

    A polarization sensitive optical imaging system is used to detect changes in polarization in dental tissues to aid the diagnosis of dental disease such as caries. The degree of depolarization is measured by illuminating the dental tissue with polarized light and measuring the polarization state of the backscattered light. The polarization state of this reflected light is analyzed using optical polarimetric imaging techniques. A hand-held fiber optic dental probe is used in vivo to direct the incident beam to the dental tissue and collect the reflected light. To provide depth-resolved characterization of the dental tissue, the polarization diagnostics may be incorporated into optical coherence domain reflectometry and optical coherence tomography (OCDR/OCT) systems, which enables identification of subsurface depolarization sites associated with demineralization of enamel or bone.

  14. Resolving local ambiguity using semantics of shape.

    SciTech Connect (OSTI)

    Diegert, Carl F.

    2010-05-01

    We demonstrate a new semantic method for automatic analysis of wide-area, high-resolution overhead imagery to tip and cue human intelligence analysts to human activity. In the open demonstration, we find and trace cars and rooftops. Our methodology, extended to analysis of voxels, may be applicable to understanding morphology and to automatic tracing of neurons in large-scale, serial-section TEM datasets. We defined an algorithm and software implementation that efficiently finds all combinations of image blobs that satisfy given shape semantics, where image blobs are formed as a general-purpose, first step that 'oversegments' image pixels into blobs of similar pixels. We will demonstrate the remarkable power (ROC) of this combinatorial-based work flow for automatically tracing any automobiles in a scene by applying semantics that require a subset of image blobs to fill out a rectangular shape, with width and height in given intervals. In most applications we find that the new combinatorial-based work flow produces alternative (overlapping) tracings of possible objects (e.g. cars) in a scene. To force an estimation (tracing) of a consistent collection of objects (cars), a quick-and-simple greedy algorithm is often sufficient. We will demonstrate a more powerful resolution method: we produce a weighted graph from the conflicts in all of our enumerated hypotheses, and then solve a maximal independent vertex set problem on this graph to resolve conflicting hypotheses. This graph computation is almost certain to be necessary to adequately resolve multiple, conflicting neuron topologies into a set that is most consistent with a TEM dataset.

  15. DOE Successfully Resolves Three Enforcement Cases and Files Yet Another |

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Department of Energy Successfully Resolves Three Enforcement Cases and Files Yet Another DOE Successfully Resolves Three Enforcement Cases and Files Yet Another September 29, 2010 - 5:24pm Addthis The Department has resolved three more of the 27 certification enforcement cases initiated three weeks ago and issued one additional penalty notice to Nordyne, LLC for failure to certify certain air conditioner and heat pump products. These actions reflect the Department's continued aggressive

  16. Nanosecond Time Resolved and Steady State Infrared Studies of...

    Office of Scientific and Technical Information (OSTI)

    Nanosecond Time Resolved and Steady State Infrared Studies of Photoinduced Decomposition of TATB at Ambient and Elevated Pressures Citation Details In-Document Search Title: ...

  17. Quantum Dimension of Photosynthesis Revealed by Angular Resolved...

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    and new methods are required for an improved feedback to molecular simulation. We will look at a novel laser method, Angle-Resolved Coherent (ARC) imaging, that separates ...

  18. EERE Success Story-Lightweight Technology Resolved Challenge...

    Energy Savers

    Facing the Chevy Spark EV Battery Tray and Enclosure EERE Success Story-Lightweight Technology Resolved Challenge Facing the Chevy Spark EV Battery Tray and Enclosure August 18, ...

  19. DOE Resolves Nearly All of its September 2010 Certification Enforcemen...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Nearly All of its September 2010 Certification Enforcement Actions DOE Resolves Nearly All of its September 2010 Certification Enforcement Actions October 19, 2010 - 10:39am ...

  20. Building America Webinar: Resolving Codes and Standards Issues...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Building America Webinar: Resolving Codes and Standards Issues to Energy Innovations This webinar provided an overview of how Building America has impacted codes and standards in ...

  1. Verifying the Benefits and Resolving the Issues in the Commercializati...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    in the Commercialization of Ethanol Containing Diesel Fuels Verifying the Benefits and Resolving the Issues in the Commercialization of Ethanol Containing Diesel Fuels ...

  2. New Code Compliance Briefs Assist in Resolving Codes and Standards...

    Energy Savers

    New Code Compliance Briefs Assist in Resolving Codes and Standards Concerns in Energy ... system knowledge that may limit effective implementation of new and existing standards. ...

  3. EGR Spatial Uniformity & Cylinder-Resolved Transients-Measurements...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    using an Absorption Spectroscopy Probe EGR Spatial Uniformity & Cylinder-Resolved Transients-Measurements using an Absorption Spectroscopy Probe This poster describes ...

  4. Time-Resolved Optical Measurements of Shock-Induced Chemistry...

    Office of Scientific and Technical Information (OSTI)

    Time Resolved Optical Measurements of Shock-Induced Chemistry in Energetic Materials Ryan ... is limited by the lack of high fidelity data for building and validating the models ...

  5. Resolving unoccupied electronic states with laser ARPES in bismuth...

    Office of Scientific and Technical Information (OSTI)

    Title: Resolving unoccupied electronic states with laser ARPES in bismuth-based cuprate superconductors Authors: Miller, Tristan L. ; rrl, Minna ; Smallwood, Christopher L. ; ...

  6. Angle-Resolved Photoemission Studies of Quantum Materials (Journal...

    Office of Scientific and Technical Information (OSTI)

    SciTech Connect Search Results Journal Article: Angle-Resolved Photoemission Studies of Quantum Materials Citation ... Cond. Mat. Phys. 3, 129, 2012 Research Org: SLAC National ...

  7. Shining Light on Catalysis | Stanford Synchrotron Radiation Lightsource

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    Shining Light on Catalysis Tuesday, July 19, 2011 - 4:38pm SSRL Conference Room 137-322 Jeroen A. van Bokhoven, Professor for Heterogeneous Catalysis Institute for Chemical and Bioengineering ETH Zurich Head of Laboratory for Catalysis and Sustainable Chemistry (LSK) Swiss Light Source Paul Scherrer Institute Understanding a functioning catalyst requires understanding at the atomic scales in a time-resolved manner. X-rays can be readily used to accomplish that task, because of the large

  8. Mobile lighting apparatus

    DOE Patents [OSTI]

    Roe, George Michael; Klebanoff, Leonard Elliott; Rea, Gerald W; Drake, Robert A; Johnson, Terry A; Wingert, Steven John; Damberger, Thomas A; Skradski, Thomas J; Radley, Christopher James; Oros, James M; Schuttinger, Paul G; Grupp, David J; Prey, Stephen Carl

    2013-05-14

    A mobile lighting apparatus includes a portable frame such as a moveable trailer or skid having a light tower thereon. The light tower is moveable from a stowed position to a deployed position. A hydrogen-powered fuel cell is located on the portable frame to provide electrical power to an array of the energy efficient lights located on the light tower.

  9. Resolved multifrequency radio observations of GG Tau

    SciTech Connect (OSTI)

    Andrews, Sean M.; Birnstiel, T.; Rosenfeld, K. A.; Wilner, D. J.; Chandler, Claire J.; Pérez, L. M.; Isella, Andrea; Ricci, L.; Carpenter, J. M.; Calvet, N.; Corder, S. A.; Deller, A. T.; Dullemond, C. P.; Greaves, J. S.; Harris, R. J.; Henning, Th.; Linz, H.; Kwon, W.; Lazio, J.; Mundy, L. G.; and others

    2014-06-01

    We present subarcsecond resolution observations of continuum emission associated with the GG Tau quadruple star system at wavelengths of 1.3, 2.8, 7.3, and 50 mm. These data confirm that the GG Tau A binary is encircled by a circumbinary ring at a radius of 235 AU with a FWHM width of ∼60 AU. We find no clear evidence for a radial gradient in the spectral shape of the ring, suggesting that the particle size distribution is spatially homogeneous on angular scales ≳0.''1. A central point source, likely associated with the primary component (GG Tau Aa), exhibits a composite spectrum from dust and free-free emission. Faint emission at 7.3 mm is observed toward the low-mass star GG Tau Ba, although its origin remains uncertain. Using these measurements of the resolved, multifrequency emission structure of the GG Tau A system, models of the far-infrared to radio spectrum are developed to place constraints on the grain size distribution and dust mass in the circumbinary ring. The non-negligible curvature present in the ring spectrum implies a maximum particle size of 1-10 mm, although we are unable to place strong constraints on the distribution shape. The corresponding dust mass is 30-300 M {sub ⊕}, at a temperature of 20-30 K. We discuss how this significant concentration of relatively large particles in a narrow ring at a large radius might be produced in a local region of higher gas pressures (i.e., a particle 'trap') located near the inner edge of the circumbinary disk.

  10. Prospects for LED lighting.

    SciTech Connect (OSTI)

    Tsao, Jeffrey Yeenien; Gee, James Martin; Simmons, Jerry Alvon

    2003-08-01

    Solid-state lighting using light-emitting diodes (LEDs) has the potential to reduce energy consumption for lighting by 50% while revolutionizing the way we illuminate our homes, work places, and public spaces. Nevertheless, substantial technical challenges remain in order for solid-state lighting to significantly displace the well-developed conventional lighting technologies. We review the potential of LED solid-state lighting to meet the long-term cost goals.

  11. LED Street Lighting

    Energy Savers

    1, 2016 LED Street Lighting The American Medical Association's (AMA) recently adopted community guidance on street lighting adds another influential voice to issues that have been ...

  12. Lighting Developments to 2030

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    Energy Frontier Research Centers: Solid-State Lighting Science Center for Frontiers of ... Twitter Google + Vimeo Newsletter Signup SlideShare Lighting Developments to 2030 Home...

  13. Lighting in Commercial Buildings

    U.S. Energy Information Administration (EIA) (indexed site)

    more comprehensive understanding of commercial lighting and the potential for lighting energy savings. Steps to build on this analysis can be taken in many directions. One...

  14. residential-lighting

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    Efficiency Progress Report Evaluation Utility Toolkit Residential Lighting Market Research The Residential Lighting Market Research Project will estimate market savings from...

  15. Lighting in Commercial Buildings

    U.S. Energy Information Administration (EIA) (indexed site)

    are also under consideration. Outside the DOE, the Environmental Protection Agency's Green Lights program promotes energy-efficient lighting as a means to reducing...

  16. Lighting in Commercial Buildings

    U.S. Energy Information Administration (EIA) (indexed site)

    Motivation and Computation of Lighting Measures Floorspace by Lighting Equipment Configuration As described in Appendix A, for each building b, the CBECS data set has the total...

  17. Exciting White Lighting

    Energy.gov [DOE]

    Windows that emit light and are more energy efficient? Universal Display’s PHOLED technology enables windows that have transparent light-emitting diodes in them.

  18. Leavenworth Tree Lighting

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    Join HERO for our annual Leavenworth Tree Lighting Ceremony & Shopping SATURDAY DECEMBER 12, 2015 Leavenworth Christmas Lighting Festival Visitors return year after year for some...

  19. Lighting in Commercial Buildings

    U.S. Energy Information Administration (EIA) (indexed site)

    light by passing electricity through mercury vapor, which causes the fluorescent coating to glow or fluoresce. High-Efficiency Ballast (HEB): A lighting conservation feature...

  20. A tunable low-energy photon source for high-resolution angle-resolved photoemission spectroscopy

    SciTech Connect (OSTI)

    Harter, John W.; Monkman, Eric J.; Shai, Daniel E.; Nie Yuefeng; Uchida, Masaki; Burganov, Bulat; Chatterjee, Shouvik; King, Philip D. C.; Shen, Kyle M.

    2012-11-15

    We describe a tunable low-energy photon source consisting of a laser-driven xenon plasma lamp coupled to a Czerny-Turner monochromator. The combined tunability, brightness, and narrow spectral bandwidth make this light source useful in laboratory-based high-resolution photoemission spectroscopy experiments. The source supplies photons with energies up to {approx}7 eV, delivering under typical conditions >10{sup 12} ph/s within a 10 meV spectral bandwidth, which is comparable to helium plasma lamps and many synchrotron beamlines. We first describe the lamp and monochromator system and then characterize its output, with attention to those parameters which are of interest for photoemission experiments. Finally, we present angle-resolved photoemission spectroscopy data using the light source and compare its performance to a conventional helium plasma lamp.

  1. Lipidic cubic phase injector is a viable crystal delivery system for time-resolved serial crystallography

    DOE PAGES-Beta [OSTI]

    Nogly, Przemyslaw; Panneels, Valerie; Nelson, Garrett; Gati, Cornelius; Kimura, Tetsunari; Milne, Christopher; Milathianaki, Despina; Kubo, Minoru; Wu, Wenting; Conrad, Chelsie; et al

    2016-08-22

    Serial femtosecond crystallography (SFX) using X-ray free-electron laser sources is an emerging method with considerable potential for time-resolved pump-probe experiments. Here we present a lipidic cubic phase SFX structure of the light-driven proton pump bacteriorhodopsin (bR) to 2.3 Å resolution and a method to investigate protein dynamics with modest sample requirement. Time-resolved SFX (TR-SFX) with a pump-probe delay of 1 ms yields difference Fourier maps compatible with the dark to M state transition of bR. Importantly, the method is very sample efficient and reduces sample consumption to about 1 mg per collected time point. Accumulation of M intermediate within themore » crystal lattice is confirmed by time-resolved visible absorption spectroscopy. Furthermore, this study provides an important step towards characterizing the complete photocycle dynamics of retinal proteins and demonstrates the feasibility of a sample efficient viscous medium jet for TR-SFX.« less

  2. Light Duty Combustion Research: Advanced Light-Duty Combustion...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Light Duty Combustion Research: Advanced Light-Duty Combustion Experiments Light Duty Combustion Research: Advanced Light-Duty Combustion Experiments 2009 DOE Hydrogen Program and ...

  3. Solid-State Lighting-Lighting Facts | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Lighting Facts Solid-State Lighting-Lighting Facts Presenter: Marc Ledbetter, Pacific Northwest National Laboratory The LED Lighting Facts program provides credible, verified ...

  4. Cree LED Lighting Solutions Formerly LED Lighting Fixtures LLF...

    Open Energy Information (Open El) [EERE & EIA]

    LED Lighting Solutions Formerly LED Lighting Fixtures LLF Jump to: navigation, search Name: Cree LED Lighting Solutions (Formerly LED Lighting Fixtures (LLF)) Place: Morrisville,...

  5. PFP Emergency Lighting Study

    SciTech Connect (OSTI)

    BUSCH, M.S.

    2000-02-02

    NFPA 101, section 5-9 mandates that, where required by building classification, all designated emergency egress routes be provided with adequate emergency lighting in the event of a normal lighting outage. Emergency lighting is to be arranged so that egress routes are illuminated to an average of 1.0 footcandle with a minimum at any point of 0.1 footcandle, as measured at floor level. These levels are permitted to drop to 60% of their original value over the required 90 minute emergency lighting duration after a power outage. The Plutonium Finishing Plant (PFP) has two designations for battery powered egress lights ''Emergency Lights'' are those battery powered lights required by NFPA 101 to provide lighting along officially designated egress routes in those buildings meeting the correct occupancy requirements. Emergency Lights are maintained on a monthly basis by procedure ZSR-12N-001. ''Backup Lights'' are battery powered lights not required by NFPA, but installed in areas where additional light may be needed. The Backup Light locations were identified by PFP Safety and Engineering based on several factors. (1) General occupancy and type of work in the area. Areas occupied briefly during a shiftly surveillance do not require backup lighting while a room occupied fairly frequently or for significant lengths of time will need one or two Backup lights to provide general illumination of the egress points. (2) Complexity of the egress routes. Office spaces with a standard hallway/room configuration will not require Backup Lights while a large room with several subdivisions or irregularly placed rooms, doors, and equipment will require Backup Lights to make egress safer. (3) Reasonable balance between the safety benefits of additional lighting and the man-hours/exposure required for periodic light maintenance. In some plant areas such as building 236-Z, the additional maintenance time and risk of contamination do not warrant having Backup Lights installed in all rooms

  6. SAMRAI: A novel variably polarized angle-resolved photoemission beamline in the VUV region at UVSOR-II

    SciTech Connect (OSTI)

    Kimura, Shin-Ichi; Ito, Takahiro; Hosaka, Masahito; Katoh, Masahiro; Sakai, Masahiro; Nakamura, Eiken; Kondo, Naonori; Horigome, Toshio; Hayashi, Kenji; Goto, Tomohiro; Ejima, Takeo; Soda, Kazuo

    2010-05-15

    A novel variably polarized angle-resolved photoemission spectroscopy beamline in the vacuum-ultraviolet (VUV) region has been installed at the UVSOR-II 750 MeV synchrotron light source. The beamline is equipped with a 3 m long APPLE-II type undulator with horizontally/vertically linear and right/left circular polarizations, a 10 m Wadsworth type monochromator covering a photon energy range of 6-43 eV, and a 200 mm radius hemispherical photoelectron analyzer with an electron lens of a {+-}18 deg. acceptance angle. Due to the low emittance of the UVSOR-II storage ring, the light source is regarded as an entrance slit, and the undulator light is directly led to a grating by two plane mirrors in the monochromator while maintaining a balance between high-energy resolution and high photon flux. The energy resolving power (h{nu}/{Delta}h{nu}) and photon flux of the monochromator are typically 1x10{sup 4} and 10{sup 12} photons/s, respectively, with a 100 {mu}m exit slit. The beamline is used for angle-resolved photoemission spectroscopy with an energy resolution of a few meV covering the UV-to-VUV energy range.

  7. Tax Credits, Rebates & Savings | Department of Energy

    Energy.gov (indexed) [DOE]

    install energy efficiency measures in Xcel service territory. Rebates are available for evaporative cooling systems, LED light bulbs, and CFL light bulbs. All equipment must meet...

  8. Tax Credits, Rebates & Savings | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    in Xcel service territory. Rebates are available for evaporative cooling systems, LED light bulbs, and CFL light bulbs. All equipment must meet program requirements....

  9. Ablamp Limited | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    Manufacturer of energy-saving Compact Fluorescent Light Bulbs, solar-powered lights, LED bulbs, auto lamps and other speciality lamps. Coordinates: 23.049681, 113.173737...

  10. Pedestrian Friendly Outdoor Lighting

    SciTech Connect (OSTI)

    Miller, N. J.; Koltai, R. N.; McGowan, T. K.

    2013-12-01

    The GATEWAY program followed two pedestrian-scale lighting projects that required multiple mockups – one at Stanford University in California and the other at Chautauqua Institution in upstate New York. The report provides insight into pedestrian lighting criteria, how they differ from street and area lighting criteria, and how solid-state lighting can be better applied in pedestrian applications.

  11. LED Lighting Facts Snapshot: Indoor Ambient Lighting

    SciTech Connect (OSTI)

    2013-04-01

    LED Lighting Facts Snapshot reports reveal how today's products really perform, drawing on analysis of verified performance data from the program's online product list.

  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

  13. lighting in the library

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    The amount and quality of light around us affects our health, safety, comfort, and productivity. Our country spends more than $37 billion each year on electricity for lighting, but technologies developed during the past 10 years can help us cut lighting costs by 30% to 60% while enhancing lighting quality and reducing environmental impacts. In a typical indoor lighting system, 50 percent or more of the energy supplied to the lamp can be wasted by obsolete equipment, poor maintenance, or

  14. Time-Resolved Study of Bonding in Liquid Carbon

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    Time-Resolved Study of Bonding in Liquid Carbon Print We are accustomed to observing carbon in its elemental form as a solid, ranging from the soft "lead" in pencils to the...

  15. DOE Resolves Avanti Refrigerator and Freezer Civil Penalty Case

    Energy.gov [DOE]

    Today, the Department of Energy announced that it has resolved the civil penalty action against Mackle Company for its failure to certify that refrigerators and refrigerator-freezers sold under the...

  16. Depth-resolved magnetic and structural analysis of relaxing epitaxial...

    Office of Scientific and Technical Information (OSTI)

    Depth-resolved magnetic and structural analysis of relaxing epitaxial Sr 2 CrReO 6 <...

  17. Nanosecond Time Resolved and Steady State Infrared Studies of...

    Office of Scientific and Technical Information (OSTI)

    Ultrafast time-resolved infrared and steady state Fourier transform IR (FTIR) spectroscopies were used to probe TATB and its products after photoexcitation with a 5 ns pulse of 532 ...

  18. Application of Spatially Resolved High Resolution Crystal Spectrometry...

    Office of Scientific and Technical Information (OSTI)

    11 PPPL- 4811 Application of Spatially Resolved High Resolution Crystal Spectrometry to ICF Plasmas September, 2012 Kenneth W. Hill, M. Bitter, L. Delgado-Aprico, N.A. Pablant, P. ...

  19. DOE Office of Enforcement Resolves 20 Energy Efficiency Enforcement Cases

    Energy.gov [DOE]

    The Department of Energy's Office of Enforcement today announced that it has resolved the 20 enforcement cases it brought in April 2011 against companies for failing to certify that their products...

  20. Passive background correction method for spatially resolved detection

    DOE Patents [OSTI]

    Schmitt, Randal L.; Hargis, Jr., Philip J.

    2011-05-10

    A method for passive background correction during spatially or angularly resolved detection of emission that is based on the simultaneous acquisition of both the passive background spectrum and the spectrum of the target of interest.

    1. Time-Resolved Study of Bonding in Liquid Carbon

      U.S. Department of Energy (DOE) all webpages (Extended Search)

      Lindenberg, O.R. Monteiro, Z. Chang, R.W. Lee, and R.W. Falcone, "Bonding in liquid carbon studied by time-resolved x-ray absorption spectroscopy," Phys. Rev. Lett. 94 057407 (2005...

    2. Resolved: "error while loading shared libraries: libalpslli.so...

      U.S. Department of Energy (DOE) all webpages (Extended Search)

      "error while loading shared libraries: libalpslli.so.0" with serial codes on login nodes Resolved: "error while loading shared libraries: libalpslli.so.0" with serial codes on...

    3. Evaluation of high‐level clouds in cloud resolving model...

      Office of Scientific and Technical Information (OSTI)

      Evaluation of high-level clouds in cloud resolving model 10.10022015MS000478 simulations with ARM and KWAJEX observations Key Points: * Two-moment microphysics improves simulated ...

    4. Resolving Code and Standard Barriers to Building America Innovations - 2014

      Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

      BTO Peer Review | Department of Energy Resolving Code and Standard Barriers to Building America Innovations - 2014 BTO Peer Review Resolving Code and Standard Barriers to Building America Innovations - 2014 BTO Peer Review Presenter: Pam Cole, Pacific Northwest National Laboratory This project is developing processes and resources for a Codes and Standards Innovation (CSI) team to assist research partners and industry in overcoming codes and standards barriers to high-performance

    5. Quantum Dimension of Photosynthesis Revealed by Angular Resolved Coherent

      U.S. Department of Energy (DOE) all webpages (Extended Search)

      Imaging | MIT-Harvard Center for Excitonics Dimension of Photosynthesis Revealed by Angular Resolved Coherent Imaging September 29, 2009 at 3pm/36-428 Ian Mercer Department of Physics, University College Dublin mercer abstract: Understanding the role of coherent electronic motion is expected to resolve general questions of importance in macromolecular energy transfer, in nature and in devices. Significant progress has been made using coherent optical four wave-mixing, however the

    6. EERE Success Story-Lightweight Technology Resolved Challenge Facing the

      Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

      Chevy Spark EV Battery Tray and Enclosure | Department of Energy Lightweight Technology Resolved Challenge Facing the Chevy Spark EV Battery Tray and Enclosure EERE Success Story-Lightweight Technology Resolved Challenge Facing the Chevy Spark EV Battery Tray and Enclosure August 18, 2015 - 11:34am Addthis The Chevy Spark EV at the Washington Auto Show. The Chevy Spark EV at the Washington Auto Show. Technology innovation comes in many forms - sometimes, it's as simple as adapting a recent

    7. Building America Webinar: Resolving Codes and Standards Issues to Energy

      Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

      Innovations | Department of Energy Resolving Codes and Standards Issues to Energy Innovations Building America Webinar: Resolving Codes and Standards Issues to Energy Innovations This webinar provided an overview of how Building America has impacted codes and standards in the past through technical and market innovations. The presenter also described new content on the Building America Solution Center that will help builders meet code requirements and will help code officials apply codes to

    8. Fish passage through a simulated horizontal bulb turbine pressure regime: A supplement to "Laboratory Studies of the Effects of Pressure and Dissolved Gas Supersaturation on Turbine-Passed Fish"

      SciTech Connect (OSTI)

      Abernethy, C. S.; Amidan, B. G.; Cada, G. F.

      2003-07-01

      Migratory and resident fish in the Columbia River Basin are exposed to stresses associated with hydroelectric power production, including pressure changes during turbine passage. The responses of fall chinook salmon and bluegill sunfish to rapid pressure change was investigated at the Pacific Northwest National Laboratory. Previous test series evaluated the effects of passage through a vertical Kaplan turbine under the worst case pressure conditions (Abernethy et al. 2001) and under less severe conditions where pressure changes were minimized (Abernethy et al. 2002). For this series of tests, pressure changes were modified to simulate passage through a horizontal bulb turbine, commonly installed at low-head dams. The results were compared to results from previous test series. Tests indicated that for most of the cross-sectional area of a horizontal bulb turbine, pressure changes occurring during turbine passage are not harmful to fall chinook salmon and only minimally harmful to bluegill. However, some areas within a horizontal bulb turbine may have extreme pressure conditions that would be harmful to fish. These scenarios were not tested because they represent a small cross-sectional area of the turbine compared to the centerline pressures scenarios used in these tests.

    9. Seventh international conference on time-resolved vibrational spectroscopy

      SciTech Connect (OSTI)

      Dyer, R.B.; Martinez, M.A.D.; Shreve, A.; Woodruff, W.H.

      1997-04-01

      The International Conference on Time-Resolved Vibrational Spectroscopy (TRVS) is widely recognized as the major international forum for the discussion of advances in this rapidly growing field. The 1995 conference was the seventh in a series that began at Lake Placid, New York, 1982. Santa Fe, New Mexico, was the site of the Seventh International Conference on Time-Resolved Vibrational Spectroscopy, held from June 11 to 16, 1995. TRVS-7 was attended by 157 participants from 16 countries and 85 institutions, and research ranging across the full breadth of the field of time-resolved vibrational spectroscopy was presented. Advances in both experimental capabilities for time-resolved vibrational measurements and in theoretical descriptions of time-resolved vibrational methods continue to occur, and several sessions of the conference were devoted to discussion of these advances and the associated new directions in TRVS. Continuing the interdisciplinary tradition of the TRVS meetings, applications of time-resolved vibrational methods to problems in physics, biology, materials science, and chemistry comprised a large portion of the papers presented at the conference.

    10. Energy Efficiency and Renewable Energy Technologies for Alaska

      Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

      ... bulbs 60 watts 2,820 watts CFL bulbs 14 watts 658 watts LED bulbs 9.5 watts 446.5 watts Lighting using kilowatt price of 12 cents * Monthly Cost of Using Incandescent Light ...

    11. Ultrastrong light-matter coupling in electrically doped microcavity organic light emitting diodes

      SciTech Connect (OSTI)

      Mazzeo, M.; Genco, A.; Gambino, S.; Ballarini, D.; Mangione, F.; Sanvitto, D.; Di Stefano, O.; Patanè, S.; Savasta, S.; Gigli, G.

      2014-06-09

      The coupling of the electromagnetic field with an electronic transition gives rise, for strong enough light-matter interactions, to hybrid states called exciton-polaritons. When the energy exchanged between light and matter becomes a significant fraction of the material transition energy an extreme optical regime called ultrastrong coupling (USC) is achieved. We report a microcavity embedded p-i-n monolithic organic light emitting diode working in USC, employing a thin film of squaraine dye as active layer. A normalized coupling ratio of 30% has been achieved at room temperature. These USC devices exhibit a dispersion-less angle-resolved electroluminescence that can be exploited for the realization of innovative optoelectronic devices. Our results may open the way towards electrically pumped polariton lasers.

    12. Lighting Basics | Department of Energy

      Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

      Homes & Buildings » Lighting & Daylighting » Lighting Basics Lighting Basics August 15, 2013 - 5:12pm Addthis Text Version There are many different types of artificial lights (formally called "lamps" in the lighting industry,) which have different applications and uses. Types of lighting include: Fluorescent Lighting High-intensity Discharge Lighting Incandescent Lighting LED Lighting. New lamp designs that use energy-efficient technology are now readily available in the

    13. lighting in the library

      U.S. Department of Energy (DOE) all webpages (Extended Search)

      Determine the Feasibility of Installing Energy Efficient Lighting In this part of the exercise, you will plan a new approach to lighting your school library. This new plan will use ...

    14. lighting in the library

      U.S. Department of Energy (DOE) all webpages (Extended Search)

      Our country spends more than 37 billion each year on electricity for lighting, but technologies developed during the past 10 years can help us cut lighting costs by 30% to 60% ...

    15. Lighting in the Library

      U.S. Department of Energy (DOE) all webpages (Extended Search)

      The purpose of the Lighting in the Library Activity is to calculate the electricity used to provide lighting in the school library and determine the feasibility of saving energy ...

    16. CONNECTED LIGHTING SYSTEMS MEETING

      Energy.gov [DOE]

      There is a lot of buzz today about the Internet of Things and the convergence of intelligent controllable light sources, communication networks, sensors, and data exchange in future lighting...

    17. Connected Lighting Systems Meeting

      Energy.gov [DOE]

      There is a lot of buzz today about the Internet of Things and the convergence of intelligent controllable light sources, communication networks, sensors, and data exchange in future lighting...

    18. Commercial / Industrial Lighting

      U.S. Department of Energy (DOE) all webpages (Extended Search)

      New Commercial Program Development Commercial Current Promotions Industrial Federal Agriculture Commercial & Industrial Lighting Efficiency Program The Commercial & Industrial...

    19. Light-Source Facilities

      U.S. Department of Energy (DOE) all webpages (Extended Search)

      Safety Light Source Facilities America ALS - Advanced Light Source, USA APS - Advanced Photon Source, USA CAMD - Center for Advanced Microstructures & Devices, USA CHESS - Cornell High Energy Synchrotron Source, USA CLS - Canadian Light Source, Canada CTST - UCSB Center for Terahertz Science and Technology, USA DFELL - Duke Free Electron Laser Laboratory, USA Jlab - Jefferson Lab, USA LCLS - Linear Coherent Light Source, USA LNLS - Laboratorio Nacional de Luz Sincrotron, Brazil NSLS -

    20. lighting in the library

      U.S. Department of Energy (DOE) all webpages (Extended Search)

      Determine the Feasibility of Installing Energy Efficient Lighting In this part of the exercise, you will plan a new approach to lighting your school library. This new plan will use less energy, cost less, and result in less greenhouse gas. Your plan will also include bottom line calculations and decision factors such as: identifying the costs and payback for buying and installing new lighting equipment and making a determination about whether or not the new, more efficient lighting will provide

    1. Phase-resolved nanosecond spectrofluorometry: theory, instrumentation, and new applications of multicomponent analysis by subnanosecond fluorescence lifetimes

      SciTech Connect (OSTI)

      Mattheis, J.R.; Mitchell, G.W.; Spencer, R.D.

      1982-03-01

      We describe a new method, phase-resolved subnanosecond spectroscopy (PRS), for the spectral differentiation of fluorophores in a mixture. The technique required adding a phase-variable rectifying detector to the SLM 4800S phasespectrofluorometer. The theory of PRS is based on the sinusoidal fluorescence emission of a population of molecules in response to sinusodially modulated exicitation light. The total a-c fluorescence signal is passed through the phase-variable detector which nulls the emission signal of any component in quadrature with the reference angle. The emission characteristics of the remaining component, or components, are more readily and accurately revealed. We investigated the sensitivity and selectivity of PRS. The sensitivity of PRS was demonstrated by nulling the contribution of the Raman scatter band of a nanomolar solution of quinine bisulfate to the real-time emission spectrum resolved at 8-nm bandpass. We demonstrated the selectivity of PRS by resolving the emission spectrum of anthracene and perylene from a 1 : 1 mixture with a lifetime differential of only 600 ps. The emission spectra of 2.2-phenylene bis-(5-phenyloxazole) and dimethyl 2.2-phenylene bis-(5-phenyloxazole) were also resolved from a 1 : 1 mixture in ethanol. The lifetime differential here was only 200 ps.

    2. Fish Passage Through a Simulated Horizontal Bulb Turbine Pressure Regime: A Supplement to"Laboratory Studies of the Effects of Pressure and Dissolved Gas Supersaturation on Turbine-Passed Fish"

      SciTech Connect (OSTI)

      Abernethy, Cary S. ); Amidan, Brett G. ); Cada, G F.

      2003-07-31

      Migratory and resident fish in the Columbia River Basin are exposed to stresses associated with hydroelectric power production, including pressure changes during turbine passage. The responses of fall chinook salmon and bluegill sunfish to rapid pressure change was investigated at the Pacific Northwest National Laboratory. Previous test series evaluated the effects of passage through a vertical Kaplan turbine under the"worst case" pressure conditions and under less severe conditions where pressure changes were minimized. For this series of tests, pressure changes were modified to simulate passage through a horizontal bulb turbine, commonly installed at low head dams. The results were compared to results from previous test series. Migratory and resident fish in the Columbia River Basin are exposed to stresses associated with hydroelectric power production, including pressure changes during turbine passage. The responses of fall chinook salmon and bluegill sunfish to rapid pressure change was investigated at the Pacific Northwest National Laboratory. Previous test series evaluated the effects of passage through a vertical Kaplan turbine under the"worst case" pressure conditions and under less severe conditions where pressure changes were minimized. For this series of tests, pressure changes were modified to simulate passage through a horizontal bulb turbine, commonly installed at low head dams. The results were compared to results from previous test series. Both fish species were acclimated for 16-22 hours at either surface (101 kPa; 1 atm) or 30 ft (191 kPa; 1.9 atm) of pressure in a hyperbaric chamber before exposure to a pressure scenario simulating passage through a horizontal bulb turbine. The simulation was as follows: gradual pressure increase to about 2 atm of pressure, followed by a sudden (0.4 second) decrease in pressure to either 0.7 or 0.95 atm, followed by gradual return to 1 atm (surface water pressure). Following the exposure, fish were held at

    3. Effective White Light Options for Parking Area Lighting | Department of

      Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

      Energy Effective White Light Options for Parking Area Lighting Effective White Light Options for Parking Area Lighting Document details lighting technologies that provide low-maintenance alternatives to high-pressure sodium lighting. Download the document detailing effective white light options for parking area lighting. (189.54 KB) More Documents & Publications LED Provides Effective and Efficient Parking Area Lighting at the NAVFAC Engineering Service Center Demonstration Assessment of

    4. V-172: ISC BIND RUNTIME_CHECK Error Lets Remote Users Deny Service Against Recursive Resolvers

      Energy.gov [DOE]

      A defect exists which allows an attacker to crash a BIND 9 recursive resolver with a RUNTIME_CHECK error in resolver.c

    5. OLED Lighting in the Offices of Aurora Lighting Design, Inc.

      Energy.gov (indexed) [DOE]

      the Offices of Aurora Lighting Design, Inc. DOE Booth Pacific Northwest National Laboratory Leslie North, DesignerPrincipal Aurora Lighting Design, Inc. 2 OLED Lighting at Aurora ...

    6. Light emitting device comprising phosphorescent materials for white light generation

      DOE Patents [OSTI]

      Thompson, Mark E.; Dapkus, P. Daniel

      2014-07-22

      The present invention relates to phosphors for energy downconversion of high energy light to generate a broadband light spectrum, which emit light of different emission wavelengths.

    7. Light-storing photocatalyst

      SciTech Connect (OSTI)

      Zhang Junying; Pan Feng; Hao Weichang; Ge Qi; Wang Tianmian

      2004-12-06

      Light-storing photocatalyst was prepared by coating light-storing phosphor and TiO{sub 2} photocatalyst in sequence on ceramic. The light-storing photocatalyst can store light irradiation and emit slowly. Consequently, the photocatalyst remains active when the irradiation source is cut off. Rhodamine B (RhB) can be decomposed efficiently by this photocatalyst in the dark after it absorbs light irradiation. This photocatalyst is photoreactive in an outdoor environment or can save energy by supplying irradiation intermittently for the photocatalyst.

    8. Photonic crystal light source

      DOE Patents [OSTI]

      Fleming, James G.; Lin, Shawn-Yu; Bur, James A.

      2004-07-27

      A light source is provided by a photonic crystal having an enhanced photonic density-of-states over a band of frequencies and wherein at least one of the dielectric materials of the photonic crystal has a complex dielectric constant, thereby producing enhanced light emission at the band of frequencies when the photonic crystal is heated. The dielectric material can be a metal, such as tungsten. The spectral properties of the light source can be easily tuned by modification of the photonic crystal structure and materials. The photonic crystal light source can be heated electrically or other heating means. The light source can further include additional photonic crystals that exhibit enhanced light emission at a different band of frequencies to provide for color mixing. The photonic crystal light source may have applications in optical telecommunications, information displays, energy conversion, sensors, and other optical applications.

    9. Frequently Asked Questions: Lighting Choices to Save You Money...

      Energy.gov (indexed) [DOE]

      be available to save you money. Q: When will the new bulbs be phased in? A: Newer energy-saving lightbulb choices that save about 25% to 75% in energy costs are on the market...

    10. Spatially resolved determination of the short-circuit current density of silicon solar cells via lock-in thermography

      SciTech Connect (OSTI)

      Fertig, Fabian Greulich, Johannes; Rein, Stefan

      2014-05-19

      We present a spatially resolved method to determine the short-circuit current density of crystalline silicon solar cells by means of lock-in thermography. The method utilizes the property of crystalline silicon solar cells that the short-circuit current does not differ significantly from the illuminated current under moderate reverse bias. Since lock-in thermography images locally dissipated power density, this information is exploited to extract values of spatially resolved current density under short-circuit conditions. In order to obtain an accurate result, one or two illuminated lock-in thermography images and one dark lock-in thermography image need to be recorded. The method can be simplified in a way that only one image is required to generate a meaningful short-circuit current density map. The proposed method is theoretically motivated, and experimentally validated for monochromatic illumination in comparison to the reference method of light-beam induced current.

    11. Design of a High Resolution and High Flux Beam line for VUV Angle-Resolved Photoemission at UVSOR-II

      SciTech Connect (OSTI)

      Kimura, Shin-ichi; Ito, Takahiro; Nakamura, Eiken; Hosaka, Masahito; Katoh, Masahiro

      2007-01-19

      A high-energy-resolution angle-resolved photoemission beamline in the vacuum-ultraviolet (VUV) region has been designed for a 750 MeV synchrotron light source UVSOR-II. The beamline equips an APPLE-II-type undulator with the horizontally/vertically linear and right/left circular polarizations, a modified Wadsworth-type monochromator and a high-resolution photoelectron analyzer. The monochromator covers the photon energy range of 6 - 40 eV. The energy resolution (hv/{delta}hv) and the photon flux on samples are expected to be 2 x 104 and 1012 photons/sec at 10 eV, 4 x 104 and 5 x 1011 photons/sec at 20 eV, and 6 x 104 and 1011 photons/sec at 40 eV, respectively. The beamline provides the high-resolution angle-resolved photoemission spectroscopy less than 1 meV in the whole VUV energy range.

    12. Spatially resolved imaging of opto-electrical property variations

      DOE Patents [OSTI]

      Nikiforov, Maxim; Darling, Seth B; Suzer, Ozgun; Guest, Jeffrey; Roelofs, Andreas

      2014-09-16

      Systems and methods for opto electric properties are provided. A light source illuminates a sample. A reference detector senses light from the light source. A sample detector receives light from the sample. A positioning fixture allows for relative positioning of the sample or the light source with respect to each other. An electrical signal device measures the electrical properties of the sample. The reference detector, sample detector and electrical signal device provide information that may be processed to determine opto-electric properties of the same.

    13. Application of Spatially Resolved High Resolution Crystal Spectrometry to

      Office of Scientific and Technical Information (OSTI)

      ICF Plasmas (Conference) | SciTech Connect Application of Spatially Resolved High Resolution Crystal Spectrometry to ICF Plasmas Citation Details In-Document Search Title: Application of Spatially Resolved High Resolution Crystal Spectrometry to ICF Plasmas High resolution (λ/Δ λ ~ 10 000) 1D imaging x-ray spectroscopy using a spherically bent crystal and a 2D hybrid pixel array detector is used world wide for Doppler measurements of ion-temperature and plasma flow-velocity profiles in

    14. Time-Resolved Study of Bonding in Liquid Carbon

      U.S. Department of Energy (DOE) all webpages (Extended Search)

      Time-Resolved Study of Bonding in Liquid Carbon Time-Resolved Study of Bonding in Liquid Carbon Print Wednesday, 28 September 2005 00:00 We are accustomed to observing carbon in its elemental form as a solid, ranging from the soft "lead" in pencils to the precious gemstone in diamond rings. While considerable attention has been focused on solid forms of carbon, the properties of liquid carbon are much more difficult to measure accurately. The very strong bonding between carbon atoms

    15. Resolved Atomic Interaction Sidebands in an Optical Clock Transition

      SciTech Connect (OSTI)

      Bishof, M.; Lin, Y.; Swallows, M. D.; Ye, J.; Rey, A. M.; Gorshkov, A. V.

      2011-06-24

      We report the observation of resolved atomic interaction sidebands (ISB) in the {sup 87}Sr optical clock transition when atoms at microkelvin temperatures are confined in a two-dimensional optical lattice. The ISB are a manifestation of the strong interactions that occur between atoms confined in a quasi-one-dimensional geometry and disappear when the confinement is relaxed along one dimension. The emergence of ISB is linked to the recently observed suppression of collisional frequency shifts. At the current temperatures, the ISB can be resolved but are broad. At lower temperatures, ISB are predicted to be substantially narrower and useful spectroscopic tools in strongly interacting alkaline-earth gases.

    16. A table-top femtosecond time-resolved soft x-ray transient absorption spectrometer

      SciTech Connect (OSTI)

      Leone, Stephen; Loh, Zhi-Heng; Khalil, Munira; Correa, Raoul E.; Leone, Stephen R.

      2008-05-21

      A laser-based, table-top instrument is constructed to perform femtosecond soft x-ray transient absorption spectroscopy. Ultrashort soft x-ray pulses produced via high-order harmonic generation of the amplified output of a femtosecond Ti:sapphire laser system are used to probe atomic core-level transient absorptions in atoms and molecules. The results provide chemically specific, time-resolved dynamics with sub-50-fs time resolution. In this setup, high-order harmonics generated in a Ne-filled capillary waveguide are refocused by a gold-coated toroidal mirror into the sample gas cell, where the soft x-ray light intersects with an optical pump pulse. The transmitted high-order harmonics are spectrally dispersed with a home-built soft x-ray spectrometer, which consists of a gold-coated toroidal mirror, a uniform-line spaced plane grating, and a soft x-ray CCD camera. The optical layout of the instrument, design of the soft x-ray spectrometer, and spatial and temporal characterization of the high-order harmonics are described. Examples of static and time-resolved photoabsorption spectra collected on this apparatus are presented.

    17. MONSTIR II: A 32-channel, multispectral, time-resolved optical tomography system for neonatal brain imaging

      SciTech Connect (OSTI)

      Cooper, Robert J. Magee, Elliott; Everdell, Nick; Magazov, Salavat; Varela, Marta; Airantzis, Dimitrios; Gibson, Adam P.; Hebden, Jeremy C.

      2014-05-15

      We detail the design, construction and performance of the second generation UCL time-resolved optical tomography system, known as MONSTIR II. Intended primarily for the study of the newborn brain, the system employs 32 source fibres that sequentially transmit picosecond pulses of light at any four wavelengths between 650 and 900 nm. The 32 detector channels each contain an independent photo-multiplier tube and temporally correlated photon-counting electronics that allow the photon transit time between each source and each detector position to be measured with high temporal resolution. The system's response time, temporal stability, cross-talk, and spectral characteristics are reported. The efficacy of MONSTIR II is demonstrated by performing multi-spectral imaging of a simple phantom.

    18. Light-Material Interactions in Energy Conversion - Energy Frontier Research

      U.S. Department of Energy (DOE) all webpages (Extended Search)

      Center (LMI-EFRC) Integrating Sphere The integrating sphere allows for angularly and wavelength resolved reflection and transmission measurements. Coupled to a Fianium white laser, reflection and transmission of light can be measured across the solar spectrum. Furthermore, motorized stages allow for angular variation across two axes in transmission mode and one axis in reflection mode. This characterization tool has been particularly useful for characterizing microwire arrays. Specifically,

    19. A monitoring campaign for Luhman 16AB. I. Detection of resolved near-infrared spectroscopic variability

      SciTech Connect (OSTI)

      Burgasser, Adam J.; Gillon, Michal; Jehin, E.; Delrez, L.; Opitom, C.; Faherty, Jacqueline K.; Radigan, Jacqueline; Triaud, Amaury H. M. J.; Plavchan, Peter

      2014-04-10

      We report resolved near-infrared spectroscopic monitoring of the nearby L dwarf/T dwarf binary WISE J104915.57531906.1AB (Luhman 16AB), as part of a broader campaign to characterize the spectral energy distribution and temporal variability of this system. A continuous 45 minute sequence of low-resolution IRTF/SpeX data spanning 0.8-2.4 ?m were obtained, concurrent with combined-light optical photometry with ESO/TRAPPIST. Our spectral observations confirm the flux reversal of this binary, and we detect a wavelength-dependent decline in the relative spectral fluxes of the two components coincident with a decline in the combined-light optical brightness of the system over the course of the observation. These data are successfully modeled as a combination of achromatic (brightness) and chromatic (color) variability in the T0.5 Luhman 16B, consistent with variations in overall cloud opacity; and no significant variability was found in L7.5 Luhman 16A, consistent with recent resolved photometric monitoring. We estimate a peak-to-peak amplitude of 13.5% at 1.25 ?m over the full light curve. Using a simple two-spot brightness temperature model for Luhman 16B, we infer an average cold covering fraction of ?30%-55%, varying by 15%-30% over a rotation period assuming a ?200-400 K difference between hot and cold regions. We interpret these variations as changes in the covering fraction of a high cloud deck and corresponding 'holes' which expose deeper, hotter cloud layers, although other physical interpretations are possible. A Rhines scale interpretation for the size of the variable features explains an apparent correlation between period and amplitude for Luhman 16B and the variable T dwarfs SIMP 0136+0933 and 2MASS J2139+0220, and predicts relatively fast winds (1-3 km s{sup 1}) for Luhman 16B consistent with light curve evolution on an advective time scale (1-3 rotation periods). The strong variability observed in this flux reversal brown dwarf pair supports the model of

    20. Light metal production

      DOE Patents [OSTI]

      Fan, Qinbai

      2016-04-19

      An electrochemical process for the production of light metals, particularly aluminum. Such a process involves contacting a light metal source material with an inorganic acid to form a solution containing the light metal ions in high concentration. The solution is fed to an electrochemical reactor assembly having an anode side containing an anode and a cathode side containing a cathode, with anode side and the cathode side separated by a bipolar membrane, with the solution being fed to the anode side. Light metal ions are electrochemically transferred through the bipolar membrane to the cathode side. The process further involves reducing the light metal ions to light metal powder. An associated processing system is also provided.

    1. Light diffusing fiber optic chamber (Patent) | DOEPatents

      Office of Scientific and Technical Information (OSTI)

      Country of Publication: United States Language: English Subject: light; diffusing; fiber; optic; chamber; light; diffusion; transmitting; light; target; light; transmitted; ...

    2. National Synchrotron Light Source

      ScienceCinema (OSTI)

      BNL

      2009-09-01

      A tour of Brookhaven's National Synchrotron Light Source (NSLS), hosted by Associate Laboratory Director for Light Sources, Stephen Dierker. The NSLS is one of the world's most widely used scientific research facilities, hosting more than 2,500 guest researchers each year. The NSLS provides intense beams of infrared, ultraviolet, and x-ray light for basic and applied research in physics, chemistry, medicine, geophysics, environmental, and materials sciences.

    3. Lighting in Commercial Buildings

      U.S. Energy Information Administration (EIA) (indexed site)

      Illuminance Assignments for CBECS Building Activity Categories Illuminance ranges were adopted from the 1987 Illuminating Engineering Society (IES) Lighting Handbook. The IES...

    4. Lighting in Commercial Buildings

      U.S. Energy Information Administration (EIA) (indexed site)

      from the engineering literature, based on CBECS building activity.) 4. Efficacy: an energy efficiency measure. Technically, the amount of light produced per unit of energy...

    5. Lighting in Commercial Buildings

      U.S. Energy Information Administration (EIA) (indexed site)

      (CEC), March 1990. Advanced Lighting Technologies Application Guidelines (ALTAG), Building and Appliance Efficiency Office. 3. Dubin, F.S., Mindell, H.L., and Bloome, S., 1976....

    6. Lighting in Commercial Buildings

      U.S. Energy Information Administration (EIA) (indexed site)

      energy are presented in this section. Statistics are presented by subgroups based on building characteristics, and by subgroups based on lighting equipment. The three sets of...

    7. FEMP Lighting Initiative

      Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

      Federal Outdoor Lighting Energy Use by Application (Total 5.0 TWh) * Federal Sector Outdoor Lamps by Technology ... * Federal Acquisition Regulation (FAR 23.2 and FAR ...

    8. And there was light

      SciTech Connect (OSTI)

      Bertulani, C. A.

      2015-02-24

      I discuss the use of light as a collection of real and virtual photons to study some lingering questions in particle and nuclear physics.

    9. Extragalactic Background Light

      Office of Scientific and Technical Information (OSTI)

      Extragalactic Background Light from Hierarchical Galaxy Formation: Gamma-ray Attenuation up to the Epoch of Cosmic Reionization and the First Stars Yoshiyuki Inoue 1 , Susumu Inoue...

    10. Lighting Test Facilities

      U.S. Department of Energy (DOE) all webpages (Extended Search)

      Lighting-Test-Facilities Sign In About | Careers | Contact | Investors | bpa.gov Search Policy & Reporting Expand Policy & Reporting EE Sectors Expand EE Sectors Technology &...

    11. Incandescent Lighting | Department of Energy

      Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

      Lighting » Incandescent Lighting Incandescent Lighting Incandescent lighting is the most common, and least energy efficient, type of lighting used in homes. | Photo courtesy of ©iStockphoto/TokenPhoto. Incandescent lighting is the most common, and least energy efficient, type of lighting used in homes. | Photo courtesy of ©iStockphoto/TokenPhoto. Incandescent lamps are often considered the least energy efficient type of electric lighting commonly found in residential buildings. Although

    12. Failure Mechanisms and Color Stability in Light-Emitting Diodes during Operation in High- Temperature Environments in Presence of Contamination

      SciTech Connect (OSTI)

      Lall, Pradeep; Zhang, Hao; Davis, J Lynn

      2015-05-26

      The energy efficiency of light-emitting diode (LED) technology compared to incandescent light bulbs has triggered an increased focus on solid state luminaries for a variety of lighting applications. Solid-state lighting (SSL) utilizes LEDs, for illumination through the process of electroluminescence instead of heating a wire filament as seen with traditional lighting. The fundamental differences in the construction of LED and the incandescent lamp results in different failure modes including lumen degradation, chromaticity shift and drift in the correlated color temperature. The use of LED-based products for safety-critical and harsh environment applications necessitates the characterization of the failure mechanisms and modes. In this paper, failure mechanisms and color stability has been studied for commercially available vertical structured thin film LED (VLED) under harsh environment conditions with and without the presence of contaminants. The VLED used for the study was mounted on a ceramic starboard in order to connect it to the current source. Contamination sources studied include operation in the vicinity of vulcanized rubber and adhesive epoxies in the presence of temperature and humidity. Performance of the VLEDs has been quantified using the measured luminous flux and color shift of the VLEDs subjected to both thermal and humidity stresses under a forward current bias of 350 mA. Results indicate that contamination can result in pre-mature luminous flux degradation and color shift in LEDs.

    13. High Efficiency, Illumination Quality OLEDs for Lighting

      SciTech Connect (OSTI)

      Joseph Shiang; James Cella; Kelly Chichak; Anil Duggal; Kevin Janora; Chris Heller; Gautam Parthasarathy; Jeffery Youmans; Joseph Shiang

      2008-03-31

      2003, a large area, OLED based illumination source was demonstrated that could provide light with a quality, quantity, and efficiency on par with what can be achieved with traditional light sources. The demonstration source was made by tiling together 16 separate 6-inch x 6-inch blue-emitting OLEDs. The efficiency, total lumen output, and lifetime of the OLED based illumination source were the same as what would be achieved with an 80 watt incandescent bulb. The devices had an average efficacy of 15 LPW and used solution-processed OLEDs. The individual 6-inch x 6-inch devices incorporated three technology strategies developed specifically for OLED lighting -- downconversion for white light generation, scattering for outcoupling efficiency enhancement, and a scalable monolithic series architecture to enable large area devices. The downconversion approach consists of optically coupling a blue-emitting OLED to a set of luminescent layers. The layers are chosen to absorb the blue OLED emission and then luminescence with high efficiency at longer wavelengths. The composition and number of layers are chosen so that the unabsorbed blue emission and the longer wavelength re-emission combine to make white light. A downconversion approach has the advantage of allowing a wide variety of colors to be made from a limited set of blue emitters. In addition, one does not have to carefully tune the emission wavelength of the individual electro-luminescent species within the OLED device in order to achieve white light. The downconversion architecture used to develop the 15LPW large area light source consisted of a polymer-based blue-emitting OLED and three downconversion layers. Two of the layers utilized perylene based dyes from BASF AG of Germany with high quantum efficiency (>98%) and one of the layers consisted of inorganic phosphor particles (Y(Gd)AG:Ce) with a quantum efficiency of {approx}85%. By independently varying the optical density of the downconversion layers, the overall

    14. Highly polarized emission in spin resolved photoelectron spectroscopy of alpha-Fe(001)/GaAs(001)

      SciTech Connect (OSTI)

      Tobin, James; Yu, Sung Woo; Morton, Simon; Waddill, George; Thompson, Jamie; Neal, James; Spangenberg, Matthais; Shen, T.H.

      2009-05-19

      Highly spin-polarized sources of electrons, Integrated into device design, remain of great interest to the spintronic and magneto-electronic device community Here, the growth of Fe upon GaAs(001) has been studied with photoelectron spectroscopy (PES), including Spin Resolved PES. Despite evidence of atomic level disorder such as intermixing, an over-layer with the spectroscopic signature of alpha-Fe(001), with a bcc real space ordering, Is obtained The results will be discussed in light of the possibility of using such films as a spin-polarized source in device applications.

    15. Quantitative and depth-resolved deep level defect distributions...

      Office of Scientific and Technical Information (OSTI)

      DOE Contract Number: AC04-94AL85000 Resource Type: Journal Article Resource ... Subject: solar (photovoltaic), solid state lighting, phonons, materials and chemistry by design, ...

    16. Light intensity compressor

      DOE Patents [OSTI]

      Rushford, Michael C.

      1990-01-01

      In a system for recording images having vastly differing light intensities over the face of the image, a light intensity compressor is provided that utilizes the properties of twisted nematic liquid crystals to compress the image intensity. A photoconductor or photodiode material that is responsive to the wavelength of radiation being recorded is placed adjacent a layer of twisted nematic liquid crystal material. An electric potential applied to a pair of electrodes that are disposed outside of the liquid crystal/photoconductor arrangement to provide an electric field in the vicinity of the liquid crystal material. The electrodes are substantially transparent to the form of radiation being recorded. A pair of crossed polarizers are provided on opposite sides of the liquid crystal. The front polarizer linearly polarizes the light, while the back polarizer cooperates with the front polarizer and the liquid crystal material to compress the intensity of a viewed scene. Light incident upon the intensity compressor activates the photoconductor in proportion to the intensity of the light, thereby varying the field applied to the liquid crystal. The increased field causes the liquid crystal to have less of a twisting effect on the incident linearly polarized light, which will cause an increased percentage of the light to be absorbed by the back polarizer. The intensity of an image may be compressed by forming an image on the light intensity compressor.

    17. Explosively pumped laser light

      DOE Patents [OSTI]

      Piltch, Martin S.; Michelotti, Roy A.

      1991-01-01

      A single shot laser pumped by detonation of an explosive in a shell casing. The shock wave from detonation of the explosive causes a rare gas to luminesce. The high intensity light from the gas enters a lasing medium, which thereafter outputs a pulse of laser light to disable optical sensors and personnel.

    18. Entergy Arkansas- Agricultural Energy Solutions Program Rebates

      Energy.gov [DOE]

      The Presecriptive Option offers predetermined incentives on a wide variety of energy efficiency measures including Compact Flourescent Light Bulbs and high performance flourescent bulb replacemen...

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

      Open Energy Information (Open El) [EERE & EIA]

      by 25% to 50%. Replacing 15 incandescent light bulbs with energy efficient bulbs can save approximately 50 per year. When shopping for appliances, look for the Energy Star...

    20. General Service LED Lamps

      Energy.gov [DOE]

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

    1. Lighting Principles and Terms | Department of Energy

      Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

      Lighting Principles and Terms Light quantity, energy consumption, and light quality are ... Light quantity, energy consumption, and light quality are the basic principles of ...

    2. Lighting fundamentals handbook: Lighting fundamentals and principles for utility personnel

      SciTech Connect (OSTI)

      Eley, C.; Tolen, T. Associates, San Francisco, CA ); Benya, J.R. )

      1992-12-01

      Lighting accounts for approximately 30% of overall electricity use and demand in commercial buildings. This handbook for utility personnel provides a source of basic information on lighting principles, lighting equipment, and other considerations related to lighting design. The handbook is divided into three parts. Part One, Physics of Light, has chapters on light, vision, optics, and photometry. Part Two, Lighting Equipment and Technology, focuses on lamps, luminaires, and lighting controls. Part Three, Lighting Design Decisions, deals with the manner in which lighting design decisions are made and reviews relevant methods and issues. These include the quantity and quality of light needed for visual tasks, calculation methods for verifying that lighting needs are satisfied, lighting economics and methods for evaluating investments in efficient lighting systems, and miscellaneous design issues including energy codes, power quality, photobiology, and disposal of lighting equipment. The handbook contains a discussion of the role of the utility in promoting the use of energy-efficient lighting. The handbook also includes a lighting glossary and a list of references for additional information. This convenient and comprehensive handbook is designed to enable utility lighting personnel to assist their customers in developing high-quality, energy-efficient lighting systems. The handbook is not intended to be an up-to-date reference on lighting products and equipment.

    3. A flexible experimental setup for femtosecond time-resolved broad-band ellipsometry and magneto-optics

      SciTech Connect (OSTI)

      Boschini, F.; Hedayat, H.; Piovera, C.; Dallera, C.; Gupta, A.; Carpene, E.

      2015-01-15

      A versatile experimental setup for femtosecond time-resolved ellipsometry and magneto-optical Kerr effect measurements in the visible light range is described. The apparatus is based on the pump-probe technique and combines a broad-band probing beam with an intense near-infrared pump. According to Fresnel scattering matrix formalism, the analysis of the reflected beam at different polarization states of the incident probe light allows one to determine the diagonal and the off-diagonal elements of the dielectric tensor in the investigated sample. Moreover, the pump-probe method permits to study the dynamics of the dielectric response after a short and intense optical excitation. The performance of the experimental apparatus is tested on CrO{sub 2} single crystals as a benchmark.

    4. Super-resolving quantum radar: Coherent-state sources with homodyne detection suffice to beat the diffraction limit

      SciTech Connect (OSTI)

      Jiang, Kebei; Lee, Hwang; Gerry, Christopher C.; Dowling, Jonathan P.

      2013-11-21

      There has been much recent interest in quantum metrology for applications to sub-Raleigh ranging and remote sensing such as in quantum radar. For quantum radar, atmospheric absorption and diffraction rapidly degrades any actively transmitted quantum states of light, such as N00N states, so that for this high-loss regime the optimal strategy is to transmit coherent states of light, which suffer no worse loss than the linear Beer's law for classical radar attenuation, and which provide sensitivity at the shot-noise limit in the returned power. We show that coherent radar radiation sources, coupled with a quantum homodyne detection scheme, provide both longitudinal and angular super-resolution much below the Rayleigh diffraction limit, with sensitivity at shot-noise in terms of the detected photon power. Our approach provides a template for the development of a complete super-resolving quantum radar system with currently available technology.

    5. Spatially and Temporally Resolved Energy and Environment Tool (STREET) Model

      Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

      Spatially and Temporally Resolved Energy and Environment Tool (STREET) Model (University of California-Irvine) Objectives Determine the number of strategically located hydrogen fueling stations needed within a geographic area to enable the introduction of commercial volumes of fuel cell electric vehicles (FCEVs), and determine the geographic distribution of the required stations while also assessing the environmental impacts. Key Attributes & Strengths Optimized hydrogen fueling station

    6. Time-Resolved Study of Bonding in Liquid Carbon

      U.S. Department of Energy (DOE) all webpages (Extended Search)

      Time-Resolved Study of Bonding in Liquid Carbon Print We are accustomed to observing carbon in its elemental form as a solid, ranging from the soft "lead" in pencils to the precious gemstone in diamond rings. While considerable attention has been focused on solid forms of carbon, the properties of liquid carbon are much more difficult to measure accurately. The very strong bonding between carbon atoms that gives diamonds their hardness also makes carbon very difficult to melt,

    7. Time-Resolved Study of Bonding in Liquid Carbon

      U.S. Department of Energy (DOE) all webpages (Extended Search)

      Time-Resolved Study of Bonding in Liquid Carbon Print We are accustomed to observing carbon in its elemental form as a solid, ranging from the soft "lead" in pencils to the precious gemstone in diamond rings. While considerable attention has been focused on solid forms of carbon, the properties of liquid carbon are much more difficult to measure accurately. The very strong bonding between carbon atoms that gives diamonds their hardness also makes carbon very difficult to melt,

    8. Time-Resolved Study of Bonding in Liquid Carbon

      U.S. Department of Energy (DOE) all webpages (Extended Search)

      Time-Resolved Study of Bonding in Liquid Carbon Print We are accustomed to observing carbon in its elemental form as a solid, ranging from the soft "lead" in pencils to the precious gemstone in diamond rings. While considerable attention has been focused on solid forms of carbon, the properties of liquid carbon are much more difficult to measure accurately. The very strong bonding between carbon atoms that gives diamonds their hardness also makes carbon very difficult to melt,

    9. Ultrafast Time-Resolved Electron Diffraction with Megavolt Electron Beams

      SciTech Connect (OSTI)

      Hastings, J.B.; Rudakov, F.M.; Dowell, D.H.; Schmerge, J.F.; Cardoza, J.D.; Castro, J.M.; Gierman, S.M.; Loos, H.; Weber, P.M.; /Brown U.

      2006-10-24

      An rf photocathode electron gun is used as an electron source for ultrafast time-resolved pump-probe electron diffraction. We observed single-shot diffraction patterns from a 160 nm Al foil using the 5.4 MeV electron beam from the Gun Test Facility at the Stanford Linear Accelerator. Excellent agreement with simulations suggests that single-shot diffraction experiments with a time resolution approaching 100 fs are possible.

    10. Time-Resolved Study of Bonding in Liquid Carbon

      U.S. Department of Energy (DOE) all webpages (Extended Search)

      Time-Resolved Study of Bonding in Liquid Carbon Print We are accustomed to observing carbon in its elemental form as a solid, ranging from the soft "lead" in pencils to the precious gemstone in diamond rings. While considerable attention has been focused on solid forms of carbon, the properties of liquid carbon are much more difficult to measure accurately. The very strong bonding between carbon atoms that gives diamonds their hardness also makes carbon very difficult to melt,

    11. Time-Resolved Study of Bonding in Liquid Carbon

      U.S. Department of Energy (DOE) all webpages (Extended Search)

      Time-Resolved Study of Bonding in Liquid Carbon Print We are accustomed to observing carbon in its elemental form as a solid, ranging from the soft "lead" in pencils to the precious gemstone in diamond rings. While considerable attention has been focused on solid forms of carbon, the properties of liquid carbon are much more difficult to measure accurately. The very strong bonding between carbon atoms that gives diamonds their hardness also makes carbon very difficult to melt,

    12. Time-Resolved Study of Bonding in Liquid Carbon

      U.S. Department of Energy (DOE) all webpages (Extended Search)

      Time-Resolved Study of Bonding in Liquid Carbon Print We are accustomed to observing carbon in its elemental form as a solid, ranging from the soft "lead" in pencils to the precious gemstone in diamond rings. While considerable attention has been focused on solid forms of carbon, the properties of liquid carbon are much more difficult to measure accurately. The very strong bonding between carbon atoms that gives diamonds their hardness also makes carbon very difficult to melt,

    13. Electric Power | Department of Energy

      Energy.gov (indexed) [DOE]

      From incandescent bulbs to fluorescents to LEDs, learn more about the long history of the light bulb. From incandescent bulbs to fluorescents to LEDs,...

    14. Share the Love (and Energy Savings) This Mother's Day | Department...

      Energy Savers

      10-20 times longer than traditional incandescent light bulbs. Replacing 15 inefficient incandescent bulbs in your home with energy-saving bulbs could save you about 50 per year. ...

    15. School Energy Survey Teacher Guide

      U.S. Department of Energy (DOE) all 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...

    16. Green Light Pulse Oximeter

      DOE Patents [OSTI]

      Scharf, John Edward

      1998-11-03

      A reflectance pulse oximeter that determines oxygen saturation of hemoglobin using two sources of electromagnetic radiation in the green optical region, which provides the maximum reflectance pulsation spectrum. The use of green light allows placement of an oximetry probe at central body sites (e.g., wrist, thigh, abdomen, forehead, scalp, and back). Preferably, the two green light sources alternately emit light at 560 nm and 577 nm, respectively, which gives the biggest difference in hemoglobin extinction coefficients between deoxyhemoglobin, RHb, and oxyhemoglobin, HbO.sub.2.

    17. Lighting in the Library

      U.S. Department of Energy (DOE) all webpages (Extended Search)

      lores.pdf (1.43

      hires.pdf (1.65

      The purpose of the Lighting in the Library Activity is to calculate the electricity used to provide lighting in the school library and determine the feasibility of saving energy and money by using energy efficient lighting fixtures. Your students will assume the role of an energy auditor assigned the task of assessing the current situation and making a recommendation for energy-efficient improvements. This activitity requires a trip to the library, an

    18. White light velocity interferometer

      DOE Patents [OSTI]

      Erskine, D.J.

      1997-06-24

      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. White light velocity interferometer

      DOE Patents [OSTI]

      Erskine, David J.

      1997-01-01

      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.

    20. White light velocity interferometer

      DOE Patents [OSTI]

      Erskine, David J.

      1999-01-01

      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.

    1. 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.

    2. Resolving and measuring diffusion in complex interfaces: Exploring new capabilities

      SciTech Connect (OSTI)

      Alam, Todd M.

      2015-09-01

      This exploratory LDRD targeted the use of a new high resolution spectroscopic diffusion capabilities developed at Sandia to resolve transport processes at interfaces in heterogeneous polymer materials. In particular, the combination of high resolution magic angle spinning (HRMAS) nuclear magnetic resonance (NMR) spectroscopy with pulsed field gradient (PFG) diffusion experiments were used to directly explore interface diffusion within heterogeneous polymer composites, including measuring diffusion for individual chemical species in multi-component mixtures. Several different types of heterogeneous polymer systems were studied using these HRMAS NMR diffusion capabilities to probe the resolution limitations, determine the spatial length scales involved, and explore the general applicability to specific heterogeneous systems. The investigations pursued included a) the direct measurement of the diffusion for poly(dimethyl siloxane) polymer (PDMS) on nano-porous materials, b) measurement of penetrant diffusion in additive manufactures (3D printed) processed PDMS composites, and c) the measurement of diffusion in swollen polymers/penetrant mixtures within nano-confined aluminum oxide membranes. The NMR diffusion results obtained were encouraging and allowed for an improved understanding of diffusion and transport processes at the molecular level, while at the same time demonstrating that the spatial heterogeneity that can be resolved using HRMAS NMR PFG diffusion experiment must be larger than ~μm length scales, expect for polymer transport within nanoporous carbons where additional chemical resolution improves the resolvable heterogeneous length scale to hundreds of nm.

    3. Lighting Controls | Department of Energy

      Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

      Controls Lighting Controls Use lighting controls to automatically turn lights on and off as needed, and save energy. Use lighting controls to automatically turn lights on and off as needed, and save energy. Use lighting controls to automatically turn lights on and off as needed, and save energy. Of course you can save energy by turning off lights when they're not needed, but sometimes we forget or don't notice that we've left them on. The most common types of lighting controls include: Dimmers

    4. Lighting in Commercial Buildings

      U.S. Energy Information Administration (EIA) (indexed site)

      5.2 152.6 160.5 54.6 Assembly Health Care Lodging Office 0 20 40 60 80 100 120 140 160 180 Energy Information Administration Energy Consumption Series: Lighting in Commercial...

    5. National Synchrotron Light Source

      ScienceCinema (OSTI)

      None

      2010-01-08

      A tour of Brookhaven's National Synchrotron Light Source (NSLS). The NSLS is one of the world's most widely used scientific research facilities, hosting more than 2,500 guest researchers each year. The NSLS provides intense beams of infrared, ultraviole

    6. Peninsula Light Company PenLight | Open Energy Information

      Open Energy Information (Open El) [EERE & EIA]

      Company PenLight Jump to: navigation, search Name: Peninsula Light Company (PenLight) Place: Gig Harbor, Washington State Zip: 98335-0078 Product: Member-owned electric cooperative...

    7. Lakeview Light and Power- Commercial Lighting Rebate Program

      Energy.gov [DOE]

      Lakeview Light and Power offers a commercial lighting rebate program. Rebates apply to the installation of energy efficient lighting retrofits in non-residential buildings. The rebate program is...

    8. Demonstration Assessment of Light-Emitting Diode (LED) Roadway Lighting

      SciTech Connect (OSTI)

      Kinzey, B. R.; Myer, M. A.

      2009-11-01

      A U.S. Department of Energy Solid-State Lighting Gateway Report on a Demonstration Assessment of Light-Emitting Diode (LED) Roadway Lighting in Lija Loop, Portland, Oregon.

    9. Solid state lighting component

      DOE Patents [OSTI]

      Yuan, Thomas; Keller, Bernd; Ibbetson, James; Tarsa, Eric; Negley, Gerald

      2010-10-26

      An LED component comprising an array of LED chips mounted on a planar surface of a submount with the LED chips capable of emitting light in response to an electrical signal. The LED chips comprise respective groups emitting at different colors of light, with each of the groups interconnected in a series circuit. A lens is included over the LED chips. Other embodiments can comprise thermal spreading structures included integral to the submount and arranged to dissipate heat from the LED chips.

    10. Solid state lighting component

      DOE Patents [OSTI]

      Keller, Bernd; Ibbetson, James; Tarsa, Eric; Negley, Gerald; Yuan, Thomas

      2012-07-10

      An LED component comprising an array of LED chips mounted on a planar surface of a submount with the LED chips capable of emitting light in response to an electrical signal. The LED chips comprise respective groups emitting at different colors of light, with each of the groups interconnected in a series circuit. A lens is included over the LED chips. Other embodiments can comprise thermal spreading structures included integral to the submount and arranged to dissipate heat from the LED chips.

    11. Thermal Issues Associated with the Lighting Systems, Electronics Racks, and Pre-Amplifier Modules in the National Ignition System

      SciTech Connect (OSTI)

      A. C. Owen; J. D. Bernardin; K. L. Lam

      1998-08-01

      This report summarizes an investigation of the thermal issues related to the National Ignition Facility. The influence of heat sources such as lighting fixtures, electronics racks, and pre-amplifier modules (PAMs) on the operational performance of the laser guide beam tubes and optical alignment hardware in the NE laser bays were investigated with experiments and numerical models. In particular, empirical heat transfer data was used to establish representative and meaningful boundary conditions and also serve as bench marks for computational fluid dynamics (CFD) models. Numerical models, constructed with a commercial CFD code, were developed to investigate the extent of thermal plumes and radiation heat transfer from the heat sources. From these studies, several design modifications were recommended including reducing the size of all fluorescent lights in the NIF laser bays to single 32 W bulb fixtures, maintaining minimum separation distances between light fixtures/electronics racks and beam transport hardware, adding motion sensors in areas of the laser bay to control light fixture operation during maintenance procedures, properly cooling all electronics racks with air-water heat exchangers with heat losses greater than 25 W/rack to the M1 laser bay, ensuring that the electronics racks are not overcooked and thus maintain their surface temperatures to within a few degrees centigrade of the mean air temperature, and insulating the electronic bays and optical support structures on the PAMs.

    12. A new equation of state with light nuclei and their weak interactions in core-collapse supernova simulations

      SciTech Connect (OSTI)

      Furusawa, Shun; Yamada, Shoichi [Waseda University, 3-4-1, Okubo, Shinjuku, Tokyo 169-8555 (Japan); Nagakura, Hiroki [Yukawa Institute for Theoretical Physics, Kyoto University, Oiwake-cho, Kitashirakawa, Sakyo-ku, Kyoto, 606-8502 (Japan); Sumiyoshi, Kohsuke [Numazu College of Technology, Ooka 3600, Numazu, Shizuoka 410-8501 (Japan); Suzuki, Hideyuki [Faculty of Science and Technology, Tokyo University of Science, Yamazaki 2641, Noda, Chiba 278-8510 (Japan)

      2014-05-02

      We perform numerical experiments to investigate the influence of inelastic neutrino reactions with light nuclei on the standing accretion shock instability. The time evolutions of shock waves are calculated with a simple light-bulb approximation for the neutrino transport and a multi-nuclei equation of state. The neutrino absorptions and inelastic interactions with deuterons, tritons, helions and alpha particles are taken into account in the hydrodynamical simulations in addition to the ordinary charged-current interactions with nucleons. Axial symmetry is assumed but no equatorial symmetry is imposed. We show that the heating rates of deuterons reach as high as ? 10% of those of nucleons around the bottom of the gain region. On the other hands, alpha particles heat the matter near the shock wave, which is important when the shock wave expands and density and temperature of matter become low. It is also found that the models with heating by light nuclei have different evolutions from those without it in non-linear evolution phase. The matter in the gain region has various densities and temperatures and there appear regions that are locally rich in deuterons and alpha particles. These results indicate that the inelastic reactions of light nuclei, especially deuterons, should be incorporated in the simulations of core-collapse supernovae.

    13. Product Quality Assurance for Off-Grid Lighting in Africa

      SciTech Connect (OSTI)

      World Bank; Mills, Evan; Mills, Evan

      2008-07-13

      Although the emergence of markets for high efficiency off-grid lighting technologies holds promise, realizing the potential of this opportunity on a long-term, sustainable basis requires careful attention to issues of product quality, consumer protection, and the potential for significant 'market spoiling', in anticipation of increases of sales of low cost, low performance off-grid lighting products. The goal of the Lighting Africa quality assurance workshop was to articulate strategies to mitigate the dangers of market spoiling and to explore ways to protect consumers from misleading advertising for sales of inferior, off-grid lighting products in the context of Lighting Africa's overarching objective to support the industry in developing a robust off-grid lighting market in Africa. The workshop resulted in the identification of two strategic approaches for meeting Lighting Africa quality assurance programmatic needs. The first strategy is intended to meet a short-term programmatic need for quality associated with requests for lighting products by bulk procurement agents, such as in a World Bank-financed project. The development of procurement specifications and test procedures that could be used in a quality/usability screening method in order to provide guidance for forthcoming large volume purchases emerged as the best solution to meet this need. Such approaches are used in World Bank-financed solar home systems (SHSs) projects in Bangladesh, Sri Lanka, and China, among others. However, unlike the SHSs which have multiple balance-of-system (BOS) components warranting the need for an array of specifications for individual components, stand alone lighting systems require specifications that are amenable to individual light points. To test this approach, Lighting Africa elected to use the technical specifications issued by the Photovoltaic Global Approval Program for solar lanterns that use CFL bulbs (PVRS11A) as the basis of qualifying such products. A contract

    14. (Lighting and) Solid-State Lighting: Science, Technology, Economic...

      U.S. Department of Energy (DOE) all webpages (Extended Search)

      Lighting and) Solid-State Lighting: Science, Technology, Economic Perspectives - Sandia Energy Energy Search Icon Sandia Home Locations Contact Us Employee Locator Energy & Climate ...

    15. Columbia Water & Light- HVAC and Lighting Efficiency Rebates

      Office of Energy Efficiency and Renewable Energy (EERE)

      Columbia Water & Light (CWL) offers rebates to its commercial and industrial customers for the purchase of high efficiency HVAC installations and efficient lighting. Incentives for certain...

    16. Peninsula Light Company- Commercial Efficient Lighting Rebate Program

      Office of Energy Efficiency and Renewable Energy (EERE)

      Peninsula Light Company (PLC) offers a rebate program for commercial customers who wish to upgrade to energy efficient lighting. Participating customers must be served by PLC commercial service....

    17. And the Oscar for Sustainable Mobile Lighting Goes to.... Lighting...

      Energy.gov (indexed) [DOE]

      There are about 100,000 diesel-powered mobile lighting towers in the United States, ... building, and testing a mobile lighting tower powered by hydrogen fuel cell ...

    18. Energy Savings Estimates of Light Emitting Diodes in Niche Lighting...

      Energy.gov (indexed) [DOE]

      Estimates of Light Emitting Diodes in Niche Lighting Applications Prepared for: Building Technologies Program Office of Energy Efficiency and Renewable Energy U.S. Department of ...

    19. LED Lighting | Department of Energy

      Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

      focusing light in ways that are useful in homes and commercial settings. The light-emitting diode (LED) is one of today's most energy-efficient and rapidly-developing lighting...

    20. Lighting Design | Department of Energy

      Energy Savers

      Design Lighting Design Energy-efficient indoor and outdoor lighting design focuses on ways ... Energy-efficient indoor and outdoor lighting design focuses on ways to improve both the ...

    1. Time-Resolved Research (XSD-TRR) | Advanced Photon Source

      U.S. Department of Energy (DOE) all webpages (Extended Search)

      at 8-ID-E is focused on correlating the structure of OPV thin films with light-harvesting performance and probing defects in self-assembled block copolymers with applications...

    2. Tunable light source for use in photoacoustic spectrometers

      DOE Patents [OSTI]

      Bisson, Scott E.; Kulp, Thomas J.; Armstrong, Karla M.

      2005-12-13

      The present invention provides a photoacoustic spectrometer that is field portable and capable of speciating complex organic molecules in the gas phase. The spectrometer has a tunable light source that has the ability to resolve the fine structure of these molecules over a large wavelength range. The inventive light source includes an optical parametric oscillator (OPO) having combined fine and coarse tuning. By pumping the OPO with the output from a doped-fiber optical amplifier pumped by a diode seed laser, the inventive spectrometer is able to speciate mixtures having parts per billion of organic compounds, with a light source that has a high efficiency and small size, allowing for portability. In an alternative embodiment, the spectrometer is scanned by controlling the laser wavelength, thus resulting in an even more compact and efficient design.

    3. Lighting Control Energy Savings

      Energy Science and Technology Software Center (OSTI)

      1985-01-01

      CONTROLITE 1.0 is a lighting energy analysis program designed to calculate the energy savings and cost benefits obtainable using lighting controls in buildings. The program can compute the lighting energy reductions that result from using daylighting, scheduling, and other control strategies. When modeling daylight control systems, the program uses QUICKLITE to compute the daylight illuminances at specified points 5 times a day, 12 days a year (the 21st of each month), and for two skymore » conditions (clear and overcast skies). Fourier series techniques are used to fit a continuous curve through the computed illuminance points. The energy use for each of the 12 days is then computed given user-specified power-in/light-out characteristics of the modeled control system. The monthly and annual energy usage for overcast and clear conditions are found separately by fitting two long-term Fourier series curves to the energy use computed for each of the 12 days. Finally, the monthly energy use is calculated by taking a weighted average for the monthly energy use computed for the overcast and clear sky conditions. The program only treats the energy use directly attributable to lighting. The impact of lighting control strategies on building thermal loads is not computed. The program allows input of different control schedules (i.e., on/off times for the lighting system) for each day of the week, but every week of the year is treated the same; thus, holidays cannot be modeled explicitly. When used for daylighting purposes, CONTROLITE1.0 understands only clear and overcast conditions. User-supplied values for the proportion of clear and overcast hours for each month of the year are required to accommodate different climatic conditions.« less

    4. Light diffusing fiber optic chamber

      DOE Patents [OSTI]

      Maitland, Duncan J.

      2002-01-01

      A light diffusion system for transmitting light to a target area. The light is transmitted in a direction from a proximal end to a distal end by an optical fiber. A diffusing chamber is operatively connected to the optical fiber for transmitting the light from the proximal end to the distal end and transmitting said light to said target area. A plug is operatively connected to the diffusing chamber for increasing the light that is transmitted to the target area.

    5. Lighting Design | Department of Energy

      Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

      Design Lighting Design Energy-efficient indoor and outdoor lighting design focuses on ways to improve both the quality and efficiency of lighting. | Photo courtesy of ©iStockphoto.com/chandlerphoto. Energy-efficient indoor and outdoor lighting design focuses on ways to improve both the quality and efficiency of lighting. | Photo courtesy of ©iStockphoto.com/chandlerphoto. Energy-efficient indoor and outdoor lighting design focuses on ways to improve both the quality and efficiency of

    6. Outdoor Lighting | Department of Energy

      Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

      Outdoor Lighting Outdoor Lighting Outdoor lighting consumes a significant amount of energy-about 1.3 quadrillion Btu annually-costing about $10 billion per year. In the last five years, a number of municipalities have switched to new LED technologies that can reduce energy costs by approximately 50% over conventional lighting technologies and provide additional savings of 20 to 40% with advance lighting controls. Beyond cost and energy savings, the higher efficiency of LED lights provides other

    7. Time-resolved x-ray diffraction across water-ices VI/VII transformatio...

      Office of Scientific and Technical Information (OSTI)

      Conference: Time-resolved x-ray diffraction across water-ices VIVII transformations using dynamic-DAC Citation Details In-Document Search Title: Time-resolved x-ray diffraction ...

    8. Novel energy resolving x-ray pinhole camera on Alcator C-Mod...

      Office of Scientific and Technical Information (OSTI)

      Novel energy resolving x-ray pinhole camera on Alcator C-Mod Citation Details In-Document Search Title: Novel energy resolving x-ray pinhole camera on Alcator C-Mod A new energy ...

    9. Sandia Corporation Agrees to Pay $4.7 Million to Resolve Allegations...

      Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

      Sandia Corporation Agrees to Pay 4.7 Million to Resolve Allegations Related to Lobbying Activities Sandia Corporation Agrees to Pay 4.7 Million to Resolve Allegations Related to ...

    10. Angle Resolved Thermal Conductivity of CeCoIn5 along the Nodal...

      Office of Scientific and Technical Information (OSTI)

      Angle Resolved Thermal Conductivity of CeCoIn5 along the Nodal Direction Citation Details In-Document Search Title: Angle Resolved Thermal Conductivity of CeCoIn5 along the Nodal ...

    11. Time-resolved Spectroscopy of Laser-heated Copper Foils | Stanford...

      U.S. Department of Energy (DOE) all webpages (Extended Search)

      Time-resolved Spectroscopy of Laser-heated Copper Foils Tuesday, July 16, 2013 - 11:00am ... The volumetric heating of a thin copper target has been studied with time resolved x-ray ...

    12. Demonstration of LED Street Lighting

      SciTech Connect (OSTI)

      Kinzey, B. R.; Royer, M. P.; Hadjian, M.; Kauffman, R.

      2013-06-01

      GATEWAY program and Municipal Solid-State Street Lighting Consortium report on a demonstration of LED street lighting in Kansas City, MO.

    13. LED Lighting | Department of Energy

      Office of Environmental Management (EM)

      of lighting in the United States. Residential LEDs -- especially ENERGY STAR rated products -- use at least 75% less energy, and last 25 times longer, than incandescent lighting. ...

    14. Lighting Design | Department of Energy

      Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

      as part of your whole-house design -- an approach for building an energy-efficient home. Indoor Lighting Design When designing indoor lighting for energy efficiency,...

    15. Lighting in Commercial Buildings, 1986

      U.S. Energy Information Administration (EIA) (indexed site)

      Lighting in Commercial Buildings --1986 Overview Full Report and Tables Detailed analysis of energy consumption for lighting for U.S. commercial buildings. previous page...

    16. GATEWAY Demonstrations: LED Street Lighting

      SciTech Connect (OSTI)

      Cook, Tyson; Shackelford, Jordan; Pang, Terrance Pang

      2008-12-01

      This report summarizes an assessment project conducted to study the performance of light emitting diode (LED) luminaires in a street lighting application in San Francisco, CA.

    17. Shedding Light on Nanocrystal Defects

      U.S. Department of Energy (DOE) all webpages (Extended Search)

      Shedding Light on Nanocrystal Defects Shedding Light on Nanocrystal Defects Print Thursday, 20 June 2013 10:41 Nanocrystals have been the focus of much scientific interest lately,...

    18. New light on human evolution

      U.S. Department of Energy (DOE) all webpages (Extended Search)

      light on human evolution New light on human evolution Scientists recently unearthed 8 million-year-old gorilla fossils from the Chorora Formation in Ethiopia, which indicate the ...

    19. Spatially resolved heat release rate measurements in turbulent premixed flames

      SciTech Connect (OSTI)

      Ayoola, B.O.; Kaminski, C.F.; Balachandran, R.; Mastorakos, E.; Frank, J.H.

      2006-01-01

      Heat release rate is a fundamental property of great importance for the theoretical and experimental elucidation of unsteady flame behaviors such as combustion noise, combustion instabilities, and pulsed combustion. Investigations of such thermoacoustic interactions require a reliable indicator of heat release rate capable of resolving spatial structures in turbulent flames. Traditionally, heat release rate has been estimated via OH or CH radical chemiluminescence; however, chemiluminescence suffers from being a line-of-sight technique with limited capability for resolving small-scale structures. In this paper, we report spatially resolved two-dimensional measurements of a quantity closely related to heat release rate. The diagnostic technique uses simultaneous OH and CH{sub 2}O planar laser-induced fluorescence (PLIF), and the pixel-by-pixel product of the OH and CH{sub 2}O PLIF signals has previously been shown to correlate well with local heat release rates. Results from this diagnostic technique, which we refer to as heat release rate imaging (HR imaging), are compared with traditional OH chemiluminescence measurements in several flames. Studies were performed in lean premixed ethylene flames stabilized between opposed jets and with a bluff body. Correlations between bulk strain rates and local heat release rates were obtained and the effects of curvature on heat release rate were investigated. The results show that the heat release rate tends to increase with increasing negative curvature for the flames investigated for which Lewis numbers are greater than unity. This correlation becomes more pronounced as the flame gets closer to global extinction.

    20. The Dark Energy Survey: Prospects for resolved stellar populations

      SciTech Connect (OSTI)

      Rossetto, Bruno M.; Santiago, Basílio X.; Girardi, Léo; Camargo, Julio I. B.; Balbinot, Eduardo; da Costa, Luiz N.; Yanny, Brian; Maia, Marcio A. G.; Makler, Martin; Ogando, Ricardo L. C.; Pellegrini, Paulo S.; Ramos, Beatriz; de Simoni, Fernando; Armstrong, R.; Bertin, E.; Desai, S.; Kuropatkin, N.; Lin, H.; Mohr, J. J.; Tucker, D. L.

      2011-05-06

      Wide angle and deep surveys, regardless of their primary purpose, always sample a large number of stars in the Galaxy and in its satellite system. We here make a forecast of the expected stellar sample resulting from the Dark Energy Survey and the perspectives that it will open for studies of Galactic structure and resolved stellar populations in general. An estimated 1.2 x 108 stars will be sampled in DES grizY filters in the southern equatorial hemisphere. This roughly corresponds to 20% of all DES sources. Most of these stars belong to the stellar thick disk and halo of the Galaxy.

    1. THE DARK ENERGY SURVEY: PROSPECTS FOR RESOLVED STELLAR POPULATIONS

      DOE PAGES-Beta [OSTI]

      Rossetto, Bruno M.; Santiago, Baslio X.; Girardi, Lo; Camargo, Julio I. B.; Balbinot, Eduardo; da Costa, Luiz N.; Yanny, Brian; Maia, Marcio A. G.; Makler, Martin; Ogando, Ricardo L. C.; et al

      2011-06-01

      Wide angle and deep surveys, regardless of their primary purpose, always sample a large number of stars in the Galaxy and in its satellite system. We here make a forecast of the expected stellar sample resulting from the Dark Energy Survey and the perspectives that it will open for studies of Galactic structure and resolved stellar populations in general. An estimated 1.2 x 108 stars will be sampled in DES grizY filters in the southern equatorial hemisphere. This roughly corresponds to 20% of all DES sources. Most of these stars belong to the stellar thick disk and halo of themoreGalaxy.less

    2. A compact electron gun for time-resolved electron diffraction

      SciTech Connect (OSTI)

      Robinson, Matthew S.; Lane, Paul D.; Wann, Derek A.

      2015-01-15

      A novel compact time-resolved electron diffractometer has been built with the primary goal of studying the ultrafast molecular dynamics of photoexcited gas-phase molecules. Here, we discuss the design of the electron gun, which is triggered by a Ti:Sapphire laser, before detailing a series of calibration experiments relating to the electron-beam properties. As a further test of the apparatus, initial diffraction patterns have been collected for thin, polycrystalline platinum samples, which have been shown to match theoretical patterns. The data collected demonstrate the focusing effects of the magnetic lens on the electron beam, and how this relates to the spatial resolution of the diffraction pattern.

    3. Time-resolved fluorescence decay measurements for flowing particles

      DOE Patents [OSTI]

      Deka, Chiranjit; Steinkamp, John A.

      1999-01-01

      Time-resolved fluorescence decay measurements for flowing particles. An apparatus and method for the measurement and analysis of fluorescence for individual cells and particles in flow are described, wherein the rapid measurement capabilities of flow cytometry and the robust measurement and analysis procedures of time-domain fluorescence lifetime spectroscopy are combined. A pulse-modulated cw laser is employed for excitation of the particles. The characteristics and the repetition rate of the excitation pulses can be readily adjusted to accommodate for fluorescence decays having a wide range of lifetimes.

    4. Time-resolved fluorescence decay measurements for flowing particles

      DOE Patents [OSTI]

      Deka, C.; Steinkamp, J.A.

      1999-06-01

      Time-resolved fluorescence decay measurements are disclosed for flowing particles. An apparatus and method for the measurement and analysis of fluorescence for individual cells and particles in flow are described, wherein the rapid measurement capabilities of flow cytometry and the robust measurement and analysis procedures of time-domain fluorescence lifetime spectroscopy are combined. A pulse-modulated CW laser is employed for excitation of the particles. The characteristics and the repetition rate of the excitation pulses can be readily adjusted to accommodate for fluorescence decays having a wide range of lifetimes. 12 figs.

    5. Sneaky light stop

      SciTech Connect (OSTI)

      Eifert, Till; Nachman, Benjamin

      2015-02-20

      A light supersymmetric top quark partner (stop) with a mass nearly degenerate with that of the standard model (SM) top quark can evade direct searches. The precise measurement of SM top properties such as the cross-section has been suggested to give a handle for this ‘stealth stop’ scenario. We present an estimate of the potential impact a light stop may have on top quark mass measurements. The results indicate that certain light stop models may induce a bias of up to a few GeV, and that this effect can hide the shift in, and hence sensitivity from, cross-section measurements. Due to the different initial states, the size of the bias is slightly different between the LHC and the Tevatron. The studies make some simplifying assumptions for the top quark measurement technique, and are based on truth-level samples.

    6. Sneaky light stop

      SciTech Connect (OSTI)

      Eifert, Till; Nachman, Benjamin

      2015-04-01

      A light supersymmetric top quark partner (stop) with a mass nearly degenerate with that of the standard model (SM) top quark can evade direct searches. The precise measurement of SM top properties such as the cross-section has been suggested to give a handle for this ‘stealth stop’ scenario. We present an estimate of the potential impact a light stop may have on top quark mass measurements. The results indicate that certain light stop models may induce a bias of up to a few GeV, and that this effect can hide the shift in, and hence sensitivity from, cross-section measurements. Due to the different initial states, the size of the bias is slightly different between the LHC and the Tevatron. The studies make some simplifying assumptions for the top quark measurement technique, and are based on truth-level samples.

    7. Pupillary efficient lighting system

      DOE Patents [OSTI]

      Berman, Samuel M.; Jewett, Don L.

      1991-01-01

      A lighting system having at least two independent lighting subsystems each with a different ratio of scotopic illumination to photopic illumination. The radiant energy in the visible region of the spectrum of the lighting subsystems can be adjusted relative to each other so that the total scotopic illumination of the combined system and the total photopic illumination of the combined system can be varied independently. The dilation or contraction of the pupil of an eye is controlled by the level of scotopic illumination and because the scotopic and photopic illumination can be separately controlled, the system allows the pupil size to be varied independently of the level of photopic illumination. Hence, the vision process can be improved for a given level of photopic illumination.

    8. Light emitting ceramic device

      DOE Patents [OSTI]

      Valentine, Paul; Edwards, Doreen D.; Walker, Jr., William John; Slack, Lyle H.; Brown, Wayne Douglas; Osborne, Cathy; Norton, Michael; Begley, Richard

      2010-05-18

      A light-emitting ceramic based panel, hereafter termed "electroceramescent" panel, is herein claimed. The electroceramescent panel is formed on a substrate providing mechanical support as well as serving as the base electrode for the device. One or more semiconductive ceramic layers directly overlay the substrate, and electrical conductivity and ionic diffusion are controlled. Light emitting regions overlay the semiconductive ceramic layers, and said regions consist sequentially of a layer of a ceramic insulation layer and an electroluminescent layer, comprised of doped phosphors or the equivalent. One or more conductive top electrode layers having optically transmissive areas overlay the light emitting regions, and a multi-layered top barrier cover comprising one or more optically transmissive non-combustible insulation layers overlay said top electrode regions.

    9. Light harvesting arrays

      DOE Patents [OSTI]

      Lindsey, Jonathan S.

      2002-01-01

      A light harvesting array useful for the manufacture of devices such as solar cells comprises: (a) a first substrate comprising a first electrode; and (b) a layer of light harvesting rods electrically coupled to the first electrode, each of the light harvesting rods comprising a polymer of Formula I: X.sup.1.paren open-st.X.sup.m+1).sub.m (I) wherein m is at least 1, and may be from two, three or four to 20 or more; X.sup.1 is a charge separation group (and preferably a porphyrinic macrocycle, which may be one ligand of a double-decker sandwich compound) having an excited-state of energy equal to or lower than that of X.sup.2, and X.sup.2 through X.sup.m+1 are chromophores (and again are preferably porphyrinic macrocycles).

    10. Sneaky light stop

      DOE PAGES-Beta [OSTI]

      Eifert, Till; Nachman, Benjamin

      2015-02-20

      A light supersymmetric top quark partner (stop) with a mass nearly degenerate with that of the standard model (SM) top quark can evade direct searches. The precise measurement of SM top properties such as the cross-section has been suggested to give a handle for this ‘stealth stop’ scenario. We present an estimate of the potential impact a light stop may have on top quark mass measurements. The results indicate that certain light stop models may induce a bias of up to a few GeV, and that this effect can hide the shift in, and hence sensitivity from, cross-section measurements. Duemore » to the different initial states, the size of the bias is slightly different between the LHC and the Tevatron. The studies make some simplifying assumptions for the top quark measurement technique, and are based on truth-level samples.« less

    11. Radioluminescent lighting technology

      SciTech Connect (OSTI)

      Not Available

      1990-01-01

      The glow-in-the-dark stereotype that characterizes the popular image of nuclear materials is not accidental. When the French scientist, Henri Becquerel, first discovered radioactivity in 1896, he was interested in luminescence. Radioluminescence, the production of light from a mixture of energetic and passive materials, is probably the oldest practical application of the unstable nucleus. Tritium-based radioluminescent lighting, in spite of the biologically favorable character of the gaseous tritium isotope, was included in the general tightening of environmental and safety regulations. Tritium light manufacturers would have to meet two fundamental conditions: (1) The benefit clearly outweighed the risk, to the extent that even the perceived risk of a skeptical public would be overcome. (2) The need was significant enough that the customer/user would be willing and able to afford the cost of regulation that was imposed both in the manufacture, use and eventual disposal of nuclear materials. In 1981, researchers at Oak Ridge National Laboratory were investigating larger radioluminescent applications using byproduct nuclear material such as krypton-85, as well as tritium. By 1982, it appeared that large source, (100 Curies or more) tritium gas tube, lights might be useful for marking runways and drop zones for military operations and perhaps even special civilian aviation applications. The successful development of this idea depended on making the light bright enough and demonstrating that large gas tube sources could be used and maintained safely in the environment. This successful DOE program is now in the process of being completed and closed-out. Working closely with the tritium light industry, State governments and other Federal agencies, the basic program goals have been achieved. This is a detailed report of what they have learned, proven, and discovered. 91 refs., 29 figs., 5 tabs. (JF)

    12. Laser remote sensing of backscattered light from a target sample

      DOE Patents [OSTI]

      Sweatt, William C.; Williams, John D.

      2008-02-26

      A laser remote sensing apparatus comprises a laser to provide collimated excitation light at a wavelength; a sensing optic, comprising at least one optical element having a front receiving surface to focus the received excitation light onto a back surface comprising a target sample and wherein the target sample emits a return light signal that is recollimated by the front receiving surface; a telescope for collecting the recollimated return light signal from the sensing optic; and a detector for detecting and spectrally resolving the return light signal. The back surface further can comprise a substrate that absorbs the target sample from an environment. For example the substrate can be a SERS substrate comprising a roughened metal surface. The return light signal can be a surface-enhanced Raman signal or laser-induced fluorescence signal. For fluorescence applications, the return signal can be enhanced by about 10.sup.5, solely due to recollimation of the fluorescence return signal. For SERS applications, the return signal can be enhanced by 10.sup.9 or more, due both to recollimation and to structuring of the SERS substrate so that the incident laser and Raman scattered fields are in resonance with the surface plasmons of the SERS substrate.

    13. Light Water Reactor Sustainability (LWRS) Program | Department...

      Energy Savers

      Nuclear Reactor Technologies Light Water Reactor Sustainability (LWRS) Program Light Water Reactor Sustainability (LWRS) Program Light Water Reactor Sustainability (LWRS) ...

    14. CONNECTED LIGHTING SYSTEMS RESOURCES | Department of Energy

      Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

      CONNECTED LIGHTING SYSTEMS RESOURCES CONNECTED LIGHTING SYSTEMS RESOURCES The following resources provide information about outdoor lighting control systems. 2014 Presentation:...

    15. Time-resolved fluorometric determination of terbium in aqueous solution

      SciTech Connect (OSTI)

      Hemmilae, I.

      1985-07-01

      The fluorescent properties of water-soluble binary and ternary complexes of terbium(III) were studied and their applications in time-resolved fluorometric analysis were tested. Solutions composed of different ..beta..-diketones, tri-n-octylphosphine oxide as the synergistic agent, and Triton X-100 as the detergent were optimized to maximize fluorescence emission in Tb measurement. The results were then compared with seven published methods which included the use of the following respective solutions, ethylenediamine-N,N'-bis((o-hydroxy-phenyl)acetic acid), dipicolinic acid, iminodiacetic acid with Tiron, EDTA with Tiron, EDTA with 2,3-dihydroxynaphthalene, EDTA with sulfosalicylic acid, and EDTA with salicylate. Fluorinated aliphatic ..beta..-diketones showed the most promising properties in acidic solution. They were especially suitable for use in time-resolved fluorometric analyses where Tb was used as the label after being conjugated to the analyte via bifunctional complexones. An acidic pH is required for Tb release before conversion into a fluorescent chelate. The applicability of the developed measurement solutions to the measurement of Eu was also tested. 22 references, 3 figures, 7 tables.

    16. Advanced Light Extraction Material for OLED Lighting | Department of Energy

      Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

      Light Extraction Material for OLED Lighting Advanced Light Extraction Material for OLED Lighting Lead Performer: Pixelligent Technologies LLC - Baltimore, MD Partners: OLEDWorks LLC DOE Total Funding: $1,000,000 Project Term: April 6, 2015 - April 5, 2017 Funding Opportunity: FY2015 Phase II Release 1 SBIR Awards PROJECT OBJECTIVE The primary goal of this Phase II project is to develop a viable commercial process to manufacture an internal light extraction (ILE) layer to be supplied to OLED

    17. Demonstration Assessment of Light-Emitting Diode Parking Structure Lighting

      Office of Scientific and Technical Information (OSTI)

      at U.S. Department of Labor Headquarters (Technical Report) | SciTech Connect Demonstration Assessment of Light-Emitting Diode Parking Structure Lighting at U.S. Department of Labor Headquarters Citation Details In-Document Search Title: Demonstration Assessment of Light-Emitting Diode Parking Structure Lighting at U.S. Department of Labor Headquarters This report documents a solid-state lighting (SSL) technology demonstration at the parking structure of the U.S. Department of Labor (DOL)

    18. Connected Lighting Systems Workshop | Department of Energy

      Energy Savers

      Lighting Systems Workshop Connected Lighting Systems Workshop 2016 Connected Lighting Systems Workshop Agenda.pdf (373.88 KB) More Documents & Publications Connected Lighting ...

    19. Demonstration Assessment of LED Roadway Lighting: Philadelphia...

      Office of Scientific and Technical Information (OSTI)

      LED Roadway Lighting: Philadelphia, PA Royer, Michael P.; Tuenge, Jason R.; Poplawski, Michael E. Roadway Lighting; Solid-state lighting; LED lighting; SSL; LED; GATEWAY Roadway...

    20. Lighting Principles and Terms | Department of Energy

      Energy Savers

      Principles and Terms Lighting Principles and Terms Light quantity, energy consumption, and light quality are the basic principles of lighting. | Photo courtesy of

    1. Analysis of Minimum Efficiency Performance Standards for Residential General Service Lighting in Chile

      SciTech Connect (OSTI)

      Letschert, Virginie E.; McNeil, Michael A.; Leiva Ibanez, Francisco Humberto; Ruiz, Ana Maria; Pavon, Mariana; Hall, Stephen

      2011-06-01

      Minimum Efficiency Performance Standards (MEPS) have been chosen as part of Chile's national energy efficiency action plan. As a first MEPS, the Ministry of Energy has decided to focus on a regulation for lighting that would ban the sale of inefficient bulbs, effectively phasing out the use of incandescent lamps. Following major economies such as the US (EISA, 2007) , the EU (Ecodesign, 2009) and Australia (AS/NZS, 2008) who planned a phase out based on minimum efficacy requirements, the Ministry of Energy has undertaken the impact analysis of a MEPS on the residential lighting sector. Fundacion Chile (FC) and Lawrence Berkeley National Laboratory (LBNL) collaborated with the Ministry of Energy and the National Energy Efficiency Program (Programa Pais de Eficiencia Energetica, or PPEE) in order to produce a techno-economic analysis of this future policy measure. LBNL has developed for CLASP (CLASP, 2007) a spreadsheet tool called the Policy Analysis Modeling System (PAMS) that allows for evaluation of costs and benefits at the consumer level but also a wide range of impacts at the national level, such as energy savings, net present value of savings, greenhouse gas (CO2) emission reductions and avoided capacity generation due to a specific policy. Because historically Chile has followed European schemes in energy efficiency programs (test procedures, labelling program definitions), we take the Ecodesign commission regulation No 244/2009 as a starting point when defining our phase out program, which means a tiered phase out based on minimum efficacy per lumen category. The following data were collected in order to perform the techno-economic analysis: (1) Retail prices, efficiency and wattage category in the current market, (2) Usage data (hours of lamp use per day), and (3) Stock data, penetration of efficient lamps in the market. Using these data, PAMS calculates the costs and benefits of efficiency standards from two distinct but related perspectives: (1) The Life

    2. Solid State Lighting

      SciTech Connect (OSTI)

      Hastbacka, Mildred; Dieckmann, John; Bouza, Antonio

      2013-03-30

      The article discusses solid state lighting technologies. This topic was covered in two previous ASHRAE Journal columns (2010). This article covers advancements in technologies and the associated efficacies. The life-cycle, energy savings and market potential of these technologies are addressed as well.

    3. Light water reactor program

      SciTech Connect (OSTI)

      Franks, S.M.

      1994-12-31

      The US Department of Energy`s Light Water Reactor Program is outlined. The scope of the program consists of: design certification of evolutionary plants; design, development, and design certification of simplified passive plants; first-of-a-kind engineering to achieve commercial standardization; plant lifetime improvement; and advanced reactor severe accident program. These program activities of the Office of Nuclear Energy are discussed.

    4. Fluorescent Lighting | Department of Energy

      Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

      Electricity & Fuel » Lighting » Fluorescent Lighting Fluorescent Lighting Fluorescent Lighting Fluorescent lamps use 25%-35% of the energy used by incandescent products to provide a similar amount of light. They also last about 10 times longer (7,000-24,000 hours). The two general types of fluorescent lamps are: Compact fluorescent lamps (CFLs) -- commonly found with integral ballasts and screw bases, these are popular lamps often used in household fixtures Fluorescent tube and circline

    5. FULLY RESOLVED QUIET-SUN MAGNETIC FLUX TUBE OBSERVED WITH THE SUNRISE/IMAX INSTRUMENT

      SciTech Connect (OSTI)

      Lagg, A.; Solanki, S. K.; Riethmueller, T. L.; Schuessler, M.; Hirzberger, J.; Feller, A.; Borrero, J. M.; Barthol, P.; Gandorfer, A.; MartInez Pillet, V.; Bonet, J. A.; Del Toro Iniesta, J. C.; Domingo, V.; Knoelker, M.; Title, A. M.

      2010-11-10

      Until today, the small size of magnetic elements in quiet-Sun areas has required the application of indirect methods, such as the line-ratio technique or multi-component inversions, to infer their physical properties. A consistent match to the observed Stokes profiles could only be obtained by introducing a magnetic filling factor that specifies the fraction of the observed pixel filled with magnetic field. Here, we investigate the properties of a small magnetic patch in the quiet Sun observed with the IMaX magnetograph on board the balloon-borne telescope SUNRISE with unprecedented spatial resolution and low instrumental stray light. We apply an inversion technique based on the numerical solution of the radiative transfer equation to retrieve the temperature stratification and the field strength in the magnetic patch. The observations can be well reproduced with a one-component, fully magnetized atmosphere with a field strength exceeding 1 kG and a significantly enhanced temperature in the mid to upper photosphere with respect to its surroundings, consistent with semi-empirical flux tube models for plage regions. We therefore conclude that, within the framework of a simple atmospheric model, the IMaX measurements resolve the observed quiet-Sun flux tube.

    6. Fixed target matrix for femtosecond time-resolved and in situ serial micro-crystallography

      DOE PAGES-Beta [OSTI]

      Mueller, C.; Marx, A.; Epp, S. W.; Zhong, Y.; Kuo, A.; Balo, A. R.; Soman, J.; Schotte, F.; Lemke, H. T.; Owen, R. L.; et al

      2015-08-18

      We present a crystallography chip enabling in situ room temperature crystallography at microfocus synchrotron beamlines and X-ray free-electron laser (X-FEL) sources. Compared to other in situ approaches, we observe extremely low background and high diffraction data quality. The chip design is robust and allows fast and efficient loading of thousands of small crystals. The ability to load a large number of protein crystals, at room temperature and with high efficiency, into prescribed positions enables high throughput automated serial crystallography with microfocus synchrotron beamlines. In addition, we demonstrate the application of this chip for femtosecond time-resolved serial crystallography at the Linacmore » Coherent Light Source (LCLS, Menlo Park, California, USA). As a result, the chip concept enables multiple images to be acquired from each crystal, allowing differential detection of changes in diffraction intensities in order to obtain high signal-to-noise and fully exploit the time resolution capabilities of XFELs.« less

    7. Electronic properties of linear carbon chains: Resolving the controversy

      SciTech Connect (OSTI)

      Al-Backri, Amaal; Zólyomi, Viktor; Lambert, Colin J.

      2014-03-14

      Literature values for the energy gap of long one-dimensional carbon chains vary from as little as 0.2 eV to more than 4 eV. To resolve this discrepancy, we use the GW many-body approach to calculate the band gap E{sub g} of an infinite carbon chain. We also compute the energy dependence of the attenuation coefficient β governing the decay with chain length of the electrical conductance of long chains and compare this with recent experimental measurements of the single-molecule conductance of end-capped carbon chains. For long chains, we find E{sub g} = 2.16 eV and an upper bound for β of 0.21 Å{sup −1}.

    8. FXR LIA Optimization - Time-resolved OTR Emittance Measurement

      SciTech Connect (OSTI)

      Jacob, J; Ong, M; Wargo, P; LeSage, G

      2005-07-21

      The Flash X-Ray Radiography (FXR) facility at Lawrence Livermore National Laboratory utilizes a high current, long pulse linear induction accelerator to produce high doses of x-ray radiation. Accurate characterization of the transverse beam emittance is required in order to facilitate accelerator modeling and tuning efforts and, ultimately, to optimize the final focus spot size, yielding higher resolution radiographs. In addition to conventional magnet scan, pepper-pot, and multiple screen techniques, optical transition radiation (OTR) has been proven as a useful emittance measurement diagnostic and is particularly well suited to the FXR accelerator. We shall discuss the time-resolved emittance characterization of an induction linac electron beam using OTR, and we will present our experimental apparatus and analysis software. We shall also develop the theoretical background of beam emittance and transition radiation.

    9. Expansion-loop enclosure resolves subsea line problems

      SciTech Connect (OSTI)

      Rich, S.K.; Alleyne, A.G.

      1998-08-03

      Recent design and construction of a Gulf of Mexico subsea pipeline illustrate the use of buried, enclosed expansion loops to resolve problems from expansion and upheaval buckling. Buried, subsea pipelines operating at high temperatures and pressures experience extreme compressive loads caused by the axial restraint of the soil. The high axial forces combined with imperfections in the seabed may overstress the pipeline or result in upheaval buckling. Typically, expansion loops, or doglegs, are installed to protect the pipeline risers from expansion and to alleviate axial forces. Buried expansion loops, however, are rendered virtually ineffective by the lateral restraint of the soil. Alternative methods to reduce expansion may increase the potential of upheaval buckling or overstressing the pipeline. Therefore, system design must consider expansion and upheaval buckling together. Discussed here are methods of prevention and control of expansion and upheaval buckling, evaluating the impact on the overall system.

    10. Evaluation study of building-resolved urban dispersion models

      SciTech Connect (OSTI)

      Flaherty, Julia E.; Allwine, K Jerry; Brown, Mike J.; Coirier, WIlliam J.; Ericson, Shawn C.; Hansen, Olav R.; Huber, Alan H.; Kim, Sura; Leach, Martin J.; Mirocha, Jeff D.; Newsom, Rob K.; Patnaik, Gopal; Senocak, Inanc

      2007-09-10

      For effective emergency response and recovery planning, it is critically important that building-resolved urban dispersion models be evaluated using field data. Several full-physics computational fluid dynamics (CFD) models and semi-empirical building-resolved (SEB) models are being advanced and applied to simulating flow and dispersion in urban areas. To obtain an estimate of the current state-of-readiness of these classes of models, the Department of Homeland Security (DHS) funded a study to compare five CFD models and one SEB model with tracer data from the extensive Midtown Manhattan field study (MID05) conducted during August 2005 as part of the DHS Urban Dispersion Program (UDP; Allwine and Flaherty 2007). Six days of tracer and meteorological experiments were conducted over an approximately 2-km-by-2-km area in Midtown Manhattan just south of Central Park in New York City. A subset of these data was used for model evaluations. The study was conducted such that an evaluation team, independent of the six modeling teams, provided all the input data (e.g., building data, meteorological data and tracer release rates) and run conditions for each of four experimental periods simulated. Tracer concentration data for two of the four experimental periods were provided to the modeling teams for their own evaluation of their respective models to ensure proper setup and operation. Tracer data were not provided for the second two experimental periods to provide for an independent evaluation of the models. The tracer concentrations resulting from the model simulations were provided to the evaluation team in a standard format for consistency in inter-comparing model results. An overview of the model evaluation approach will be given followed by a discussion on the qualitative comparison of the respective models with the field data. Future model developments efforts needed to address modeling gaps identified from this study will also be discussed.

    11. Fusion pumped light source

      DOE Patents [OSTI]

      Pappas, Daniel S.

      1989-01-01

      Apparatus is provided for generating energy in the form of light radiation. A fusion reactor is provided for generating a long, or continuous, pulse of high-energy neutrons. The neutron flux is coupled directly with the lasing medium. The lasing medium includes a first component selected from Group O of the periodic table of the elements and having a high inelastic scattering cross section. Gamma radiation from the inelastic scattering reactions interacts with the first component to excite the first component, which decays by photon emission at a first output wavelength. The first output wavelength may be shifted to a second output wavelength using a second liquid component responsive to the first output wavelength. The light outputs may be converted to a coherent laser output by incorporating conventional optics adjacent the laser medium.

    12. Scattering Of Light Nuclei

      SciTech Connect (OSTI)

      Quaglioni, S; Navratil, P; Roth, R

      2009-12-15

      The exact treatment of nuclei starting from the constituent nucleons and the fundamental interactions among them has been a long-standing goal in nuclear physics. Above all nuclear scattering and reactions, which require the solution of the many-body quantum-mechanical problem in the continuum, represent an extraordinary theoretical as well as computational challenge for ab initio approaches.We present a new ab initio many-body approach which derives from the combination of the ab initio no-core shell model with the resonating-group method [4]. By complementing a microscopic cluster technique with the use of realistic interactions, and a microscopic and consistent description of the nucleon clusters, this approach is capable of describing simultaneously both bound and scattering states in light nuclei. We will discuss applications to neutron and proton scattering on sand light p-shell nuclei using realistic nucleon-nucleon potentials, and outline the progress toward the treatment of more complex reactions.

    13. Materials processing with light

      U.S. Department of Energy (DOE) all webpages (Extended Search)

      Materials processing with light, plasmas and other sources of energy At the ARC various processing technologies are used to create materials, struc- tures, and devices that play an increasingly important role in high value-added manufacturing of computer and communications equipment, physical and chemical sensors, biomedical instruments and treatments, semiconductors, thin films, photovoltaics, electronic components and optical components. For example, making coatings, including paint, chrome,

    14. Lighting Energy Conservation Measures | Department of Energy

      Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

      Technology Deployment » Efficient Technologies & Products » Lighting Energy Conservation Measures Lighting Energy Conservation Measures Lighting Improvements Lighting technologies are constantly innovating and improving in cost and energy consumption. Lighting upgrades can be simple to install and immediately reduce energy consumption. Lighting Technologies Replace lighting with more efficient lamp types and lower wattages, where cost effective and without compromising light quality for

    15. Reading Municipal Light Department- Commercial Lighting Retrofit Program

      Office of Energy Efficiency and Renewable Energy (EERE)

      Reading Municipal Light Department (RMLD) offers incentives for non-residential customers to install energy-efficient lighting and sensors in existing facilities. Rebates are limited to $20,000 per...

    16. SSL EVALUATION: OLED Lighting in the Offices of Aurora Lighting...

      Energy Savers

      EVALUATION: OLED Lighting in the Offices of Aurora Lighting Design, Inc. The first GATEWAY demonstra- tion involving OLEDs is also the first office test site for the use of OLEDs ...

    17. Making fuel from light: Argonne research sheds light on photosynthesis...

      U.S. Department of Energy (DOE) all webpages (Extended Search)

      Making fuel from light: Argonne research sheds light on photosynthesis and creation of solar fuel By Jo Napolitano * September 1, 2015 Tweet EmailPrint Refined by nature over a ...

    18. Observations of a mode transition in a hydrogen hollow cathode discharge using phase resolved optical emission spectroscopy

      SciTech Connect (OSTI)

      Dixon, Sam Charles, Christine; Dedrick, James; Boswell, Rod; Gans, Timo; O'Connell, Deborah

      2014-07-07

      Two distinct operational modes are observed in a radio frequency (rf) low pressure hydrogen hollow cathode discharge. The mode transition is characterised by a change in total light emission and differing expansion structures. An intensified CCD camera is used to make phase resolved images of Balmer α emission from the discharge. The low emission mode is consistent with a typical γ discharge, and appears to be driven by secondary electrons ejected from the cathode surface. The bright mode displays characteristics common to an inductive discharge, including increased optical emission, power factor, and temperature of the H{sub 2} gas. The bright mode precipitates the formation of a stationary shock in the expansion, observed as a dark region adjacent to the source-chamber interface.

    19. Solar lighting | Open Energy Information

      Open Energy Information (Open El) [EERE & EIA]

      only need to place the lights in a sunny location. Others have the lights separate from a solar cell panel. Only the panel needs to be placed in a sunny location. Units vary in...

    20. LED Lighting | Department of Energy

      Office of Environmental Management (EM)

      comparable or better light quality than other types of lighting. Check out the top 8 things you didn't know about LEDs to learn more. Energy Savings LED is a highly energy...

    1. Photodetector with enhanced light absorption

      DOE Patents [OSTI]

      Kane, James

      1985-01-01

      A photodetector including a light transmissive electrically conducting layer having a textured surface with a semiconductor body thereon. This layer traps incident light thereby enhancing the absorption of light by the semiconductor body. A photodetector comprising a textured light transmissive electrically conducting layer of SnO.sub.2 and a body of hydrogenated amorphous silicon has a conversion efficiency about fifty percent greater than that of comparative cells. The invention also includes a method of fabricating the photodetector of the invention.

    2. Measuring the X-ray Resolving Power of Bent Potassium Acid Phthalate

      Office of Scientific and Technical Information (OSTI)

      Diffraction Crystals (Conference) | SciTech Connect Conference: Measuring the X-ray Resolving Power of Bent Potassium Acid Phthalate Diffraction Crystals Citation Details In-Document Search Title: Measuring the X-ray Resolving Power of Bent Potassium Acid Phthalate Diffraction Crystals This report presents the results from measuring the X-ray resolving power of a curved potassium acid phthalate (KAP(001)) spectrometer crystal using two independent methods. It is part of a continuing effort

    3. Coherent white light amplification

      DOE Patents [OSTI]

      Jovanovic, Igor; Barty, Christopher P.

      2004-05-25

      A system for coherent simultaneous amplification of a broad spectral range of light that includes an optical parametric amplifier and a source of a seed pulse is described. A first angular dispersive element is operatively connected to the source of a seed pulse. A first imaging telescope is operatively connected to the first angular dispersive element and operatively connected to the optical parametric amplifier. A source of a pump pulse is operatively connected to the optical parametric amplifier. A second imaging telescope is operatively connected to the optical parametric amplifier and a second angular dispersive element is operatively connected to the second imaging telescope.

    4. Pedestrian Friendly Outdoor Lighting

      SciTech Connect (OSTI)

      Miller, Naomi J.; Koltai, Rita; McGowan, Terry

      2013-12-31

      This GATEWAY report discusses the problems of pedestrian lighting that occur with all technologies with a focus on the unique optical options and opportunities offered by LEDs through the findings from two pedestrian-focused projects, one at Stanford University in California, and one at the Chautauqua Institution in upstate New York. Incorporating user feedback this report reviews the tradeoffs that must be weighed among visual comfort, color, visibility, efficacy and other factors to stimulate discussion among specifiers, users, energy specialists, and in industry in hopes that new approaches, metrics, and standards can be developed to support pedestrian-focused communities, while reducing energy use.

    5. EGR Spatial Uniformity & Cylinder-Resolved Transients-Measurements using an Absorption Spectroscopy Probe

      Energy.gov [DOE]

      This poster describes development and application of an EGR probe for assessing steady-state spatial uniformity and cylinder-resolved EGR dynamics.

    6. ADR LUNCHTIME PROGRAM: "Mindfulness for Conflict Resolvers" |

      Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

      Department of Energy LUNCHTIME PROGRAM: "Mindfulness for Conflict Resolvers" ADR LUNCHTIME PROGRAM: "Mindfulness for Conflict Resolvers" Speaker: Rachel Wohl, Esq., Conflict Specialist "Mindfulness for Conflict Resolvers" Mindfulness is moment-to-moment, non-judgmental awareness, i.e., being fully present. We know that the quality of the presence of conflict resolvers has an impact on both the parties and the process. We may find ourselves in the middle of

    7. Evidence of dynamical spin shielding in Ce from spin-resolved...

      Office of Scientific and Technical Information (OSTI)

      Evidence of dynamical spin shielding in Ce from spin-resolved photoelectron spectroscopy Citation Details In-Document Search Title: Evidence of dynamical spin shielding in Ce from ...

    8. Development of Time Resolved X-ray Spectroscopy in High Intensity...

      Office of Scientific and Technical Information (OSTI)

      Title: Development of Time Resolved X-ray Spectroscopy in High Intensity Laser-Plasma Interactions Authors: Notley, M ; Weber, R ; Fell, B ; Jefferies, J ; Freeman, R ; Mackinnon, ...

    9. DOE Resolves Nearly One-Third of 27 Recently Filed Civil Penalty Cases

      Office of Energy Efficiency and Renewable Energy (EERE)

      The Department has successfully resolved eight of the 27 enforcement cases brought just two weeks ago against companies for selling products without properly certifying their compliance with the...

    10. Time-Resolved Picosecond Pure-Rotational Coherent anti-Stokes...

      Office of Scientific and Technical Information (OSTI)

      Time-Resolved Picosecond Pure-Rotational Coherent anti-Stokes Raman Spectroscopy for Thermometry and Species Concentration in Combustion Environments. Citation Details In-Document ...

    11. Evaluation of high-level clouds in cloud resolving model simulations...

      Office of Scientific and Technical Information (OSTI)

      Title: Evaluation of high-level clouds in cloud resolving model simulations with ARM and KWAJEX observations: HIGH CLOUD IN CRM Authors: Liu, Zheng 1 ; Muhlbauer, Andreas 2 ; ...

    12. Numerical simulations of altocumulus with a cloud resolving model

      SciTech Connect (OSTI)

      Liu, S.; Krueger, S.K.

      1996-04-01

      Altocumulus and altostratus clouds together cover approximately 22% of the earth`s surface. They play an important role in the earth`s energy budget through their effect on solar and infrared radiation. However, there has been little altocumulus cloud investigation by either modelers or observational programs. Starr and Cox (SC) (1985a,b) simulated an altostratus case as part of the same study in which they modeled a thin layer of cirrus. Although this calculation was originally described as representing altostratus, it probably better represents altocumulus stratiformis. In this paper, we simulate altocumulus cloud with a cloud resolving model (CRM). We simply describe the CRM first. We calculate the same middle-level cloud case as SC to compare our results with theirs. We will look at the role of cloud-scale processes in response to large-scale forcing. We will also discuss radiative effects by simulating diurnal and nocturnal cases. Finally, we discuss the utility of a 1D model by comparing 1D simulations and 2D simulations.

    13. Spectrally Resolved Magnetic Resonance Imaging of the XenonBiosensor

      SciTech Connect (OSTI)

      Hilty, Christian; Lowery, Thomas; Wemmer, David; Pines, Alexander

      2005-07-15

      Due to its ability to non-invasively record images, as well as elucidate molecular structure, nuclear magnetic resonance is the method of choice for applications as widespread as chemical analysis and medical diagnostics. Its detection threshold is, however, limited by the small polarization of nuclear spins in even the highest available magnetic fields. This limitation can, under certain circumstances, be alleviated by using hyper-polarized substances. Xenon biosensors make use of the sensitivity gain of hyperpolarized xenon to provide magnetic resonance detection capability for a specific low-concentration target. They consist of a cryptophane cage, which binds one xenon atom, and which has been connected via a linker to a targeting moiety such as a ligand or antibody. Recent work has shown the possibility of using the xenon biosensor to detect small amounts of a substance in a heterogeneous environment by NMR. Here, we demonstrate that magnetic resonance (MR) provides the capability to obtain spectrally and spatially resolved images of the distribution of immobilized biosensor, opening the possibility for using the xenon biosensor for targeted imaging.

    14. Surface determination through atomically resolved secondary-electron imaging

      DOE PAGES-Beta [OSTI]

      Ciston, J.; Brown, H. G.; D’Alfonso, A. J.; Koirala, P.; Ophus, C.; Lin, Y.; Suzuki, Y.; Inada, H.; Zhu, Y.; Allen, L. J.; et al

      2015-06-17

      We report that unique determination of the atomic structure of technologically relevant surfaces is often limited by both a need for homogeneous crystals and ambiguity of registration between the surface and bulk. Atomically resolved secondary-electron imaging is extremely sensitive to this registration and is compatible with faceted nanomaterials, but has not been previously utilized for surface structure determination. Here we show a detailed experimental atomic-resolution secondary-electron microscopy analysis of the c(6 x 2) reconstruction on strontium titanate (001) coupled with careful simulation of secondary-electron images, density functional theory calculations and surface monolayer-sensitive aberration-corrected plan-view high-resolution transmission electron microscopy. Our workmore » reveals several unexpected findings, including an amended registry of the surface on the bulk and strontium atoms with unusual seven-fold coordination within a typically high surface coverage of square pyramidal TiO5 units. Lastly, dielectric screening is found to play a critical role in attenuating secondary-electron generation processes from valence orbitals.« less

    15. Commercial Lighting Solutions, Webtool Peer Review Report

      SciTech Connect (OSTI)

      Jones, Carol C.; Meyer, Tracy A.

      2009-06-17

      The Commercial Lighting Solutions (CLS) project directly supports the U.S. Department of Energys Commercial Building Energy Alliance efforts to design high performance buildings. CLS creates energy efficient best practice lighting designs for widespread use, and they are made available to users via an interactive webtool that both educates and guides the end user through the application of the Lighting Solutions. This report summarizes the peer review of the beta version of the CLS webtool, which contains retail box lighting solutions. The methodology for the peer review process included data collection (stakeholder input), analysis of the comments, and organization of the input into categories for prioritization of the comments against a set of criteria. Based on this process, recommendations were developed about which feedback should be addressed for the release of version 1.0 of the webtool at the Lightfair conference in New York City in May 2009. Due to the volume of data (~500 comments) the methodology for addressing the peer review comments was central to the success of the ultimate goal of improving the tool. The comments were first imported into a master spreadsheet, and then grouped and organized in several layers. Solutions to each comment were then rated by importance and feasibility to determine the practicality of resolving the concerns of the commenter in the short-term or long-term. The rating system was used as an analytical tool, but the results were viewed thoughtfully to ensure that they were not the sole the factor in determining which comments were recommended for near-term resolution. The report provides a list of the top ten most significant and relevant improvements that will be made within the webtool for version 1.0 as well as appendices containing the short-term priorities in additional detail. Peer review comments that are considered high priority by the reviewers and the CLS team but cannot be completed for Version 1.0 are listed as

    16. 3D-resolved determination of minority-carrier lifetime in planar silicon solar cells by photocurrent decay

      SciTech Connect (OSTI)

      Verhoef, L.A.; Stroom, J.C.; Bisschop, F.J.; Liefting, J.R.; Sinke, W.C. )

      1990-12-15

      In modern production schemes for Si solar cells, defect passivation and impurity gettering are often used to improve material quality and thereby cell efficiency. These processes generally alter the spatial uniformity of minority-carrier transport parameters over the wafer and may result in minority-carrier lifetime and diffusion length variations both lateral and in depth. In polycrystalline Si these spatial dependences are already present due to the nature of the material. We present an extension of the photocurrent decay method to determine the diffusion length in a three-dimensionally resolved fashion. From a single photocurrent decay curve the back-surface recombination velocity, the average minority-carrier diffusion length, and an asymmetry factor which qualitatively describes the depth dependence of the diffusion length are determined. This is done using the three observables: quantum efficiency, fundamental decay time, and intercept of the extrapolated decay curve with the time-zero axis. Lateral resolution is obtained by focusing the light beam to a small spot on the cell and measuring the current decay curve as a function of position on the cell. It is shown that light-pulse durations longer than the minority-carrier lifetime and wavelengths longer than 950 nm are required. These conditions are met by using modulated wavelength-tunable light from a Ti:sapphire laser. Measurements on monocrystalline cells show that the decay time is independent of wavelength and light-pulse duration, as predicted by theory. Furthermore, the intercept with the time-zero axis was shown to increase with increasing pulse duration and wavelength. Measurements on a set of polycrystalline Si cells were performed showing that gettering treatments during cell production result in depth-dependent lifetimes.

    17. Optical-Fiber-Based, Time-Resolved Photoluminescence Spectrometer for Thin-Film Absorber Characterization and Analysis of TRPL Data for CdS/CdTe Interface: Preprint

      SciTech Connect (OSTI)

      Kuciauskas, D.; Duenow, J. N.; Kanevce, A.; Li, J. V.; Young, M. R.; Dippo, P.; Levi, D. H.

      2012-06-01

      We describe the design of a time resolved photoluminescence (TRPL) spectrometer for rapid semiconductor absorber characterization. Simplicity and flexibility is achieved by using single optical fiber to deliver laser pulses and to collect photoluminescence. We apply TRPL for characterization of CdS/CdTe absorbers after deposition, CdCl2 treatment, Cu doping, and back contact formation. Data suggest this method could be applied in various stages of PV device processing. Finally, we show how to analyze TRPL data for CdS/CdTe absorbers by considering laser light absorption depth and intermixing at CdS/CdTe interface.

    18. Light modulating device

      DOE Patents [OSTI]

      Rauh, R. David; Goldner, Ronald B.

      1989-01-01

      In a device for transmitting light, means for controlling the transmissivity of the device, including a ceramic, reversibly electrochromic, crystalline element having a highly reflective state when injected with electrons and charge compensating ions and a highly transmissive state when the electrons and ions are removed, the crystalline element being characterized as having a reflectivity of at least 50% in the reflective state and not greater than 10% in the transmissive state, and means for modulating the crystalline element between the reflective and transmissive states by injecting ions into the crystalline element in response to an applied electrical current of a first polarity and removing the ions in response to an applied electrical current of a second polarity.

    19. Directed light fabrication

      SciTech Connect (OSTI)

      Lewis, G.K.; Nemec, R.; Milewski, J.; Thoma, D.J.; Cremers, D.; Barbe, M.

      1994-09-01

      Directed Light Fabrication (DLF) is a rapid prototyping process being developed at Los Alamos National Laboratory to fabricate metal components. This is done by fusing gas delivered metal powder particles in the focal zone of a laser beam that is, programmed to move along or across the part cross section. Fully dense metal is built up a layer at a time to form the desired part represented by a 3 dimensional solid model from CAD software. Machine ``tool paths`` are created from the solid model that command the movement and processing parameters specific to the DLF process so that the part can be built one layer at a time. The result is a fully dense, near net shape metal part that solidifies under rapid solidification conditions.

    20. Light modulating device

      DOE Patents [OSTI]

      Rauh, R.D.; Goldner, R.B.

      1989-12-26

      In a device for transmitting light, means for controlling the transmissivity of the device, including a ceramic, reversibly electrochromic, crystalline element having a highly reflective state when injected with electrons and charge compensating ions and a highly transmissive state when the electrons and ions are removed, the crystalline element being characterized as having a reflectivity of at least 50% in the reflective state and not greater than 10% in the transmissive state, and means for modulating the crystalline element between the reflective and transmissive states by injecting ions into the crystalline element in response to an applied electrical current of a first polarity and removing the ions in response to an applied electrical current of a second polarity are disclosed. 1 fig.

    1. Philips Lumileds Lighting Co | Open Energy Information

      Open Energy Information (Open El) [EERE & EIA]

      of high-power LEDs and solid-state lighting solutions for automotive lighting, computer displays, LCD televisions, signs and signaling and architectural lighting....

    2. Universal Lighting Technologies | Open Energy Information

      Open Energy Information (Open El) [EERE & EIA]

      Lighting Technologies Jump to: navigation, search Name: Universal Lighting Technologies Place: Nashville, Tennessee Zip: 37214-3683 Product: Universal Lighting Technologies...

    3. Lighting Control Types | Department of Energy

      Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

      Lighting Control Types Lighting Control Types Characteristics of the most common lighting controls for offices and other public buildings are outlined below. Also provided is a ...

    4. Detroit Public Lighting Department - Commercial and Industrial...

      Energy.gov (indexed) [DOE]

      PublicLightingEnergyWis... Expiration Date 11302012 State Michigan Program Type Rebate Program Rebate Amount Light Fixtures: 2-130 Lighting Controls: 0.10-65...

    5. How Do You Light Your Home Efficiently?

      Energy.gov [DOE]

      An average household dedicates 11% of its energy budget to lighting. Installing efficient lighting technologies, using task lighting, flipping the switch, and taking advantage of natural daylight...

    6. OLED Lighting Products Webinar Presentation Slides | Department...

      Energy Savers

      OLED Lighting Products Webinar Presentation Slides OLED Lighting Products Webinar Presentation Slides OLED-Lighting-Products-Webinar7-28-16.pdf (2.23 MB) More Documents & ...

    7. Emerging Lighting Technology | Department of Energy

      Energy Savers

      Emerging Lighting Technology Emerging Lighting Technology Presentation covers emergying light technologies and is given at the Spring 2011 Federal Utility Partnership Working Group ...

    8. Lighting Principles and Terms | Department of Energy

      Energy.gov (indexed) [DOE]

      Light quantity, energy consumption, and light quality are the basic principles of lighting. | Photo courtesy of

    9. Advanced Lighting Systems | Open Energy Information

      Open Energy Information (Open El) [EERE & EIA]

      Minnesota Zip: 56378 Product: Advanced Lighting Systems (ALS) provides a number of LED and fiber optic lighting solutions. It was acquired by Nexxus Lighting in September...

    10. Silescent Lighting Corp | Open Energy Information

      Open Energy Information (Open El) [EERE & EIA]

      Lighting Corp Place: Fort Lauderdale, Florida Zip: 33315 Product: Florida-based LED lighting fixtures maker. References: Silescent Lighting Corp1 This article is a stub....

    11. Hull Municipal Light Plant | Open Energy Information

      Open Energy Information (Open El) [EERE & EIA]

      Hull Municipal Light Plant Jump to: navigation, search Logo: Hull Municipal Light Plant Name: Hull Municipal Light Plant Place: Massachusetts Phone Number: 781-925-0051 Website:...

    12. Light at Night and Human Health

      SciTech Connect (OSTI)

      2010-01-01

      Solid-state lighting program technology fact sheet that discusses potential health implications of light at night (LAN) exposure and how it may affect lighting practice and design.

    13. Chandra resolves the T Tauri binary system RW Aur

      SciTech Connect (OSTI)

      Skinner, Stephen L.; Gdel, Manuel E-mail: manuel.guedel@univie.ac.at

      2014-06-20

      RW Aur is a multiple T Tauri system consisting of an early-K type primary (A) and a K5 companion (B) at a separation of 1.''4. RW Aur A drives a bipolar optical jet that is well characterized optically. We present results of a sensitive Chandra observation whose primary objective was to search for evidence of soft extended X-ray emission along the jet, as has been seen for a few other nearby T Tauri stars. The binary is clearly resolved by Chandra and both stars are detected as X-ray sources. The X-ray spectra of both stars reveal evidence for cool and hot plasma. Surprisingly, the X-ray luminosity of the less-massive secondary is at least twice that of the primary and is variable. The disparity is attributed to the primary whose X-ray luminosity is at the low end of the range for classical T Tauri stars of similar mass based on established correlations. Deconvolved soft-band images show evidence for slight outward elongation of the source structure of RW Aur A along the blueshifted jet axis inside the central arcsecond. In addition, a faint X-ray emission peak is present on the redshifted axis at an offset of 1.''2 0.''2 from the star. Deprojected jet speeds determined from previous optical studies are too low to explain this faint emission peak as shock-heated jet plasma. Thus, unless flow speeds in the redshifted jet have been underestimated, other mechanisms such as magnetic jet heating may be involved.

    14. RESOLVING THE RADIO SOURCE BACKGROUND: DEEPER UNDERSTANDING THROUGH CONFUSION

      SciTech Connect (OSTI)

      Condon, J. J.; Cotton, W. D.; Fomalont, E. B.; Kellermann, K. I.; Miller, N.; Perley, R. A.; Scott, D.; Vernstrom, T.; Wall, J. V.

      2012-10-10

      We used the Karl G. Jansky Very Large Array to image one primary beam area at 3 GHz with 8'' FWHM resolution and 1.0 {mu}Jy beam{sup -1} rms noise near the pointing center. The P(D) distribution from the central 10 arcmin of this confusion-limited image constrains the count of discrete sources in the 1 < S({mu}Jy) < 10 range. At this level, the brightness-weighted differential count S {sup 2} n(S) is converging rapidly, as predicted by evolutionary models in which the faintest radio sources are star-forming galaxies; and Almost-Equal-To 96% of the background originating in galaxies has been resolved into discrete sources. About 63% of the radio background is produced by active galactic nuclei (AGNs), and the remaining 37% comes from star-forming galaxies that obey the far-infrared (FIR)/radio correlation and account for most of the FIR background at {lambda} Almost-Equal-To 160 {mu}m. Our new data confirm that radio sources powered by AGNs and star formation evolve at about the same rate, a result consistent with AGN feedback and the rough correlation of black hole and stellar masses. The confusion at centimeter wavelengths is low enough that neither the planned Square Kilometre Array nor its pathfinder ASKAP EMU survey should be confusion limited, and the ultimate source detection limit imposed by 'natural' confusion is {<=}0.01 {mu}Jy at {nu} = 1.4 GHz. If discrete sources dominate the bright extragalactic background reported by ARCADE 2 at 3.3 GHz, they cannot be located in or near galaxies and most are {<=}0.03 {mu}Jy at 1.4 GHz.

    15. WEATHER ON THE NEAREST BROWN DWARFS: RESOLVED SIMULTANEOUS MULTI-WAVELENGTH VARIABILITY MONITORING OF WISE J104915.57531906.1AB

      SciTech Connect (OSTI)

      Biller, Beth A.; Crossfield, Ian J. M.; Mancini, Luigi; Ciceri, Simona; Kopytova, Taisiya G.; Bonnefoy, Mickal; Deacon, Niall R.; Schlieder, Joshua E.; Buenzli, Esther; Brandner, Wolfgang; Bailer-Jones, Coryn A. L.; Henning, Thomas; Goldman, Bertrand; Southworth, John; Allard, France; Homeier, Derek; Freytag, Bernd; Greiner, Jochen

      2013-11-20

      We present two epochs of MPG/ESO 2.2m GROND simultaneous six-band (r'i'z' JHK) photometric monitoring of the closest known L/T transition brown dwarf binary WISE J104915.57531906.1AB. We report here the first resolved variability monitoring of both the T0.5 and L7.5 components. We obtained 4 hr of focused observations on the night of 2013 April 22 (UT), as well as 4 hr of defocused (unresolved) observations on the night of 2013 April 16 (UT). We note a number of robust trends in our light curves. The r' and i' light curves appear to be anti-correlated with z' and H for the T0.5 component and in the unresolved light curve. In the defocused dataset, J appears correlated with z' and H and anti-correlated with r' and i', while in the focused dataset we measure no variability for J at the level of our photometric precision, likely due to evolving weather phenomena. In our focused T0.5 component light curve, the K band light curve displays a significant phase offset relative to both H and z'. We argue that the measured phase offsets are correlated with atmospheric pressure probed at each band, as estimated from one-dimensional atmospheric models. We also report low-amplitude variability in i' and z' intrinsic to the L7.5 component.

    16. Adoption of Light-Emitting Diodes in Common Lighting Applications

      Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

      Adoption of Light-Emitting Diodes in Common Lighting Applications Prepared for the U.S. Department of Energy Solid-State Lighting Program July 2015 Prepared by Navigant This page intentionally left blank i | P a g e Disclaimer This report was prepared as an account of work sponsored by an agency of the United States Government. Neither the United States Government, nor any agency thereof, nor any of their employees, nor any of their contractors, subcontractors, or their employees, makes any

    17. Advanced Light Extraction Structure for OLED Lighting | Department of

      Energy.gov (indexed) [DOE]

      Energy Pixelligent Technologies, LLC - Baltimore, MD Partner: OLEDWorks, LLC - Rochester, NY DOE Total Funding: $1,000,000 Cost Share: $250,000 Project Term: September 10, 2014 - August 31, 2016 Funding Opportunity: SSL R&D Funding Opportunity Announcement (FOA) (DE-FOA-0000973) Project Objective This project will develop a novel internal light extraction (ILE) design to improve the light extraction efficiency of OLED lighting devices to 70% without negatively impacting the device

    18. Solar optics: light as energy; energy as light

      SciTech Connect (OSTI)

      Bennett, D.J.; Eijadi, D.A.

      1980-05-01

      a prominent characteristic of earth-sheltered and underground buildings, as well as buildings designed to accommodate more uses within the same perimeters, is the prominence of interior space without direct access to natural light and view opportunities. Solar Optics, a technique for illuminating interior spaces with natural light, offers a way to satisfy the well-documented human affinity for natural light. The system, which uses a heliostat to track the sun and lenses and mirrors to direct the light to remote interior spaces, is more efficient than converting solar radiation into electricity. Through the use of cold mirrors, it is also possible to separate the infrared portion of the spectrum from visible light, thereby creating a cool light source that can reduce a building's space cooling demand. Solar Optics also offers energy savings by transmitting light through a small aperture, as opposed to a large window. Several design problems must still be addressed. The system will be demonstrated in a new building at the University of Minnesota. Because this is a limited demonstration, it does not include the integration of a natural light system with a central source light system...another promising application of Solar Optics.

    19. LED Lighting Facts/CALiPER Snapshot. Outdoor Ambient Lighting

      SciTech Connect (OSTI)

      2013-07-01

      Snapshot reports reveal how today's products really perform, drawing on analysis of verified performance data from the LED Lighting Facts program's online product list.

    20. Resolving microstructures in Z pinches with intensity interferometry

      SciTech Connect (OSTI)

      Apruzese, J. P.; Kroupp, E.; Maron, Y.; Giuliani, J. L.; Thornhill, J. W.

      2014-03-15

      Nearly 60 years ago, Hanbury Brown and Twiss [R. Hanbury Brown and R. Q. Twiss, Nature 178, 1046 (1956)] succeeded in measuring the 30 nrad angular diameter of Sirius using a new type of interferometry that exploited the interference of photons independently emitted from different regions of the stellar disk. Its basis was the measurement of intensity correlations as a function of detector spacing, with no beam splitting or preservation of phase information needed. Applied to Z pinches, X pinches, or laser-produced plasmas, this method could potentially provide spatial resolution under one micron. A quantitative analysis based on the work of Purcell [E. M. Purcell, Nature 178, 1449 (1956)] reveals that obtaining adequate statistics from x-ray interferometry of a Z-pinch microstructure would require using the highest-current generators available. However, using visible light interferometry would reduce the needed photon count and could enable its use on sub-MA machines.

    1. Automatic Mechetronic Wheel Light Device

      DOE Patents [OSTI]

      Khan, Mohammed John Fitzgerald

      2004-09-14

      A wheel lighting device for illuminating a wheel of a vehicle to increase safety and enhance aesthetics. The device produces the appearance of a "ring of light" on a vehicle's wheels as the vehicle moves. The "ring of light" can automatically change in color and/or brightness according to a vehicle's speed, acceleration, jerk, selection of transmission gears, and/or engine speed. The device provides auxiliary indicator lights by producing light in conjunction with a vehicle's turn signals, hazard lights, alarm systems, and etc. The device comprises a combination of mechanical and electronic components and can be placed on the outer or inner surface of a wheel or made integral to a wheel or wheel cover. The device can be configured for all vehicle types, and is electrically powered by a vehicle's electrical system and/or battery.

    2. EECBG Success Story: Lighting Retrofit Improving Visibility,...

      Energy.gov (indexed) [DOE]

      New LED lighting fixtures (right) emit a whiter light than existing high-pressure sodium ... New LED lighting fixtures (right) emit a whiter light than existing high-pressure sodium ...

    3. Smart Street Lights | GE Global Research

      U.S. Department of Energy (DOE) all webpages (Extended Search)

      LightGrid Provides Real-Time Feedback From Street Lights Click to email this to a friend ... LightGrid Provides Real-Time Feedback From Street Lights You use a GPS to provide ...

    4. What's Next for Solid-State Lighting?

      Energy Savers

      Photo courtesy of GE Lighting What's Next for Solid-State Lighting? A s we stand on the brink of a lighting revolution spearheaded by light-emitting diode (LED) technology, one ...

    5. 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...

    6. 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....

    7. Common Industrial Lighting Upgrade Technologies

      Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

      The current causes mercury atoms to ionize generating ultraviolet photons otherwise known as ultraviolet light invisible to the human eye. These photons react with a phosphor ...

    8. Solid-State Lighting Webcasts

      SciTech Connect (OSTI)

      2011-12-16

      Links to past webcast presentations related to solid-state lighting, including presentation slides and question-and-answer sessions, where available.

    9. LED Lighting Facts®

      Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

      ... and NGL * Constantly changing based on feedback and input from stakeholders - Data ... the program value - 684 manufacturers, 360 retailersdistributors, 300 lighting ...

    10. Linac Coherent Light Source Overview

      ScienceCinema (OSTI)

      None

      2013-05-29

      Take an animated tour of the Linac Coherent Light Source (LCLS). Follow the laser pulse from the injector gun all the way through to the Far Experimental Hall.

    11. Presentation: Synchrotron Radiation Light Sources

      Energy.gov [DOE]

      A briefing to the Secretary's Energy Advisory Board on Synchrotron Radiation Light Sources delivered by Patricia Dehmer, U.S. Department of Energy

    12. Shedding Light on Nanocrystal Defects

      U.S. Department of Energy (DOE) all webpages (Extended Search)

      Shedding Light on Nanocrystal Defects Print Nanocrystals have been the focus of much scientific interest lately, given their various advantageous mechanical properties. Their...

    13. Connected Lighting Systems Workshop Registration

      Energy.gov [DOE]

      The registration fee for the 2016 DOE Connected Lighting Systems Workshop includes admission to all sessions, networking breakfasts and lunches, and an evening networking reception.

    14. Linac Coherent Light Source Overview

      Office of Energy Efficiency and Renewable Energy (EERE)

      Take an animated tour of the Linac Coherent Light Source (LCLS). Follow the laser pulse from the injector gun all the way through to the Far Experimental Hall.

    15. Energy Savings Activities-Lighting

      Education Teach & Learn

      Students use the scientific method to examine school lighting technologies and determine if there are opportunities to save energy and money.

    16. Northeast Energy Efficiency Partnerships: Advanced Lighting Controls...

      Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

      Northeast Energy Efficiency Partnerships: Advanced Lighting Controls Northeast Energy Efficiency Partnerships: Advanced Lighting Controls Credit: Northeast Energy Efficiency...

    17. Why Lighting Systems Need to Evolve

      Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

      Lighting Systems Need to Evolve DOE Connected Lighting Systems Meeting November 16, 2015 Lighting Controls - A Lost Opportunity 1 18% 16% 7% 2% 4% 4% Light scheduling Occupancy sensors Multi-level lighting or dimming Daylight harvesting Demand responsive lighting Building automation system (BAS) for lighting2 Percent of Buildings with Control Strategy Source: 2012 Commercial Buildings Energy Consumption Survey, US Energy Information Administration Lighting Controls - A Lost Opportunity 2 Source:

    18. LED Lighting: Just the Facts, Please!

      Energy.gov [DOE]

      Now there's another arsenal in the toolbox to help consumers find LED lights they can trust: the Lighting Facts™ label.

    19. Have You Used LED Light Strings?

      Energy.gov [DOE]

      This week, you read about LED holiday light strings, which can use 90% less energy than regular incandescent light strings.

    20. How Gender Affects Negotiation and What We Should All Do About It | Argonne

      U.S. Department of Energy (DOE) all webpages (Extended Search)

      Department of Energy Electricity & Fuel » Lighting » How Energy-Efficient Light Bulbs Compare with Traditional Incandescents How Energy-Efficient Light Bulbs Compare with Traditional Incandescents By replacing your home's five most frequently used light fixtures or bulbs with models that have earned the ENERGY STAR, you can save $75 each year. By replacing your home's five most frequently used light fixtures or bulbs with models that have earned the ENERGY STAR, you can save $75 each

    1. The Linac Coherent Light Source

      DOE PAGES-Beta [OSTI]

      White, William E.; Robert, Aymeric; Dunne, Mike

      2015-05-01

      The Linac Coherent Light Source (LCLS) at the SLAC National Accelerator Laboratory was the first hard X-ray free-electron laser (FEL) to operate as a user facility. After five years of operation, LCLS is now a mature FEL user facility. Our personal views about opportunities and challenges inherent to these unique light sources are discussed.

    2. Installing a Light Source 'Racetrack'

      Energy.gov [DOE]

      This month, workers at Brookhaven National Laboratory’s National Synchrotron Light Source II (NSLS-II), the half-mile electron racetrack for one of the world’s most advanced light sources, will begin filling the facility’s steel and concrete shell.

    3. Light beam frequency comb generator

      DOE Patents [OSTI]

      Priatko, G.J.; Kaskey, J.A.

      1992-11-24

      A light beam frequency comb generator uses an acousto-optic modulator to generate a plurality of light beams with frequencies which are uniformly separated and possess common noise and drift characteristics. A well collimated monochromatic input light beam is passed through this modulator to produce a set of both frequency shifted and unshifted optical beams. An optical system directs one or more frequency shifted beams along a path which is parallel to the path of the input light beam such that the frequency shifted beams are made incident on the modulator proximate to but separated from the point of incidence of the input light beam. After the beam is thus returned to and passed through the modulator repeatedly, a plurality of mutually parallel beams are generated which are frequency-shifted different numbers of times and possess common noise and drift characteristics. 2 figs.

    4. Light beam frequency comb generator

      DOE Patents [OSTI]

      Priatko, Gordon J.; Kaskey, Jeffrey A.

      1992-01-01

      A light beam frequency comb generator uses an acousto-optic modulator to generate a plurality of light beams with frequencies which are uniformly separated and possess common noise and drift characteristics. A well collimated monochromatic input light beam is passed through this modulator to produce a set of both frequency shifted and unshifted optical beams. An optical system directs one or more frequency shifted beams along a path which is parallel to the path of the input light beam such that the frequency shifted beams are made incident on the modulator proximate to but separated from the point of incidence of the input light beam. After the beam is thus returned to and passed through the modulator repeatedly, a plurality of mutually parallel beams are generated which are frequency-shifted different numbers of times and possess common noise and drift characteristics.

    5. Finite-dimensional approximations of the resolvent of an infinite band matrix and continued fractions

      SciTech Connect (OSTI)

      Barrios, Dolores; Lopez, Guillermo L; Martinez-Finkelshtein, A; Torrano, Emilio

      1999-04-30

      The approximability of the resolvent of an operator induced by a band matrix by the resolvents of its finite-dimensional sections is studied. For bounded perturbations of self-adjoint matrices a positive result is obtained. The convergence domain of the sequence of resolvents can be described in this case in terms of matrices involved in the representation. This result is applied to tridiagonal complex matrices to establish conditions for the convergence of Chebyshev continued fractions on sets in the complex domain. In the particular case of compact perturbations this result is improved and a connection between the poles of the limit function and the eigenvalues of the tridiagonal matrix is established.

    6. Sandia Corporation Agrees to Pay $4.7 Million to Resolve Allegations

      Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

      Related to Lobbying Activities | Department of Energy Sandia Corporation Agrees to Pay $4.7 Million to Resolve Allegations Related to Lobbying Activities Sandia Corporation Agrees to Pay $4.7 Million to Resolve Allegations Related to Lobbying Activities Sandia Corporation Agrees to Pay $4.7 Million to Resolve Allegations Related to Lobbying Activities (42.64 KB) More Documents & Publications Special Inquiry: DOE/IG-0927 Special Inquiry: DOE/IG-0927 Special Report: OIG-SR-16-01

    7. TIME-RESOLVED 1-10 keV CRYSTAL SPECTROMETER FOR THE Z MACHINE AT SANDIA NATIONAL LABORATORIES

      SciTech Connect (OSTI)

      D. V. Morgan; S. Gardner; R. Liljestrand; M. Madlener; S. Slavin; M. Wu

      2003-06-01

      We have designed, fabricated, calibrated, and fielded a fast, time-resolved 1-10 keV crystal spectrometer to observe the evolution of wire pinch spectra at the Z machine at Sandia National Laboratories. The instrument has two convex cylindrical crystals (PET and KAP). Both crystals Bragg reflect x-rays into an array of ten silicon diodes, providing continuous spectral coverage in twenty channels from 1.0 to 10 keV. The spectral response of the instrument has been calibrated from 1.0 to 6.3 keV at beamline X8A at the National Synchrotron Light Source. The time response of the 1-mm2 silicon detectors was measured with the Pulsed X-ray Source at Bechtel Nevada's Los Alamos Operations, where 2-nanosecond full-width half-maximum (FWHM) waveforms with 700-picosecond rise times typically were observed. The spectrometer has been fielded recently on several experimental runs at the Z Machine. In this paper, we present the time-resolved spectra resulting from the implosions of double-nested tungsten wire arrays onto 5-mm diameter foam cylinders. We also show the results obtained for a double-nested stainless steel wire array with no target cylinder. The spectrometer was located at the end of a 7.1-meter beamline on line-of sight (LOS)21/22, at an angle 12{sup o} above the equatorial plane, and was protected from the debris field by a customized dual-slit fast valve. The soft detector channels below 2.0 keV recorded large signals at pinch time coinciding with signals recorded on vacuum x-ray diodes (XRDs). On experiment Z993, the spectrometer channels recorded a second pulse with a hard x-ray emission spectrum several nanoseconds after pinch time.

    8. Supersymmetry across the light and heavy-light hadronic spectrum

      SciTech Connect (OSTI)

      Dosch, Hans Gunter; de Teramond, Guy F.; Brodsky, Stanley J.

      2015-10-07

      Relativistic light-front bound-state equations for mesons and baryons can be constructed in the chiral limit from the supercharges of a superconformal algebra which connect baryon and meson spectra. Quark masses break the conformal invariance, but the basic underlying supersymmetric mechanism, which transforms meson and baryon wave functions into each other, still holds and gives remarkable connections across the entire spectrum of light and heavy-light hadrons. As a result, we also briefly examine the consequences of extending the supersymmetric relations to double-heavy mesons and baryons.

    9. Light water detritiation

      SciTech Connect (OSTI)

      Fedorchenko, O.A.; Aleksee, I.A.; Bondarenko, S.D.; Vasyanina, T.V.

      2015-03-15

      Hundreds of thousands of tons of tritiated light water have been accumulating from the enterprises of nuclear fuel cycles around the world. The Dual-Temperature Water-Hydrogen (DTWH) process looks like the only practical alternative to Combined Electrolysis and Catalytic Exchange (CECE). In DTWH power-consuming lower reflux device (electrolytic cell) is replaced by a so-called 'hot tower' (LPCE column operating at conditions which ensure relatively small value of elementary separation factor α(hot)). In the upper, cold tower, the tritium transfers from hydrogen to water while in the lower, hot tower - in the opposite direction - from water to hydrogen. The DTWH process is much more complicated compared to CECE; it must be thoroughly computed and strictly controlled by an automatic control system. The use of a simulation code for DTWH is absolutely important. The simulation code EVIO-5 deals with 3 flows inside a column (hydrogen gas, water vapour and liquid water) and 2 simultaneous isotope exchange sub-processes (counter-current phase exchange and co-current catalytic exchange). EVIO-5 takes into account the strong dependence of process performance on given conditions (temperature and pressure). It calculates steady-state isotope concentration profiles considering a full set of reversible exchange reactions between different isotope modifications of water and hydrogen (12 molecular species). So the code can be used for simulation of LPCE column operation for detritiation of hydrogen and water feed, which contains H and D not only at low concentrations but above 10 at.% also. EVIO-5 code is used to model a Tritium Removal Facility with a throughput capacity of about 400 m{sup 3}/day. Simulation results show that a huge amount of wet-proofed catalyst is required (about 6000 m{sup 3}), mainly (90%) in the first stage. One reason for these large expenses (apart from a big scale of the problem itself) is the relatively high tritium separation factor in the hot tower

    10. Getting CFLs Home in Longview, Texas

      Office of Energy Efficiency and Renewable Energy (EERE)

      Inefficient light bulbs can drive up electricity bills and drain homeowners' wallets. With that in mind, government officials in the east Texas city of Longview established a light bulb swap program that is projected to save participating households $242.

    11. 50 middle-schoolers are wowed by science at PPPL's My Brother...

      U.S. Department of Energy (DOE) all webpages (Extended Search)

      March 4. Gallery: Ankita Jariwala uses a Tesla coil to light up a blue fluorescent bulb. ... of Communications) Ankita Jariwala uses a Tesla coil to light up a blue fluorescent bulb. ...

    12. Connected Lighting and beyond, Self-Configuration

      Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

      Connected Lighting and beyond, Self-Configuration Dagnachew Birru, PhD Head of Lighting Research Department Philips Research North America, Cambridge, MA Nov 16, 2015 DoE Connected Lighting Meeting 2 Outline * Connected Lighting and self-configuration * Examples of current state - Cities - Buildings * Next wave * Summary 3 Lighting has gone digital, redefining what is possible with light Energy efficiency Creating amazing experiences Enhancing attractiveness of cities 4 The Future of Lighting:

    13. Fluorescent Lighting Basics | Department of Energy

      Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

      Fluorescent Lighting Basics Fluorescent Lighting Basics October 17, 2013 - 5:39pm Addthis Light from a fluorescent lamp is first created by an electric current conducted through an inert gas producing ultraviolet light that is invisible to the human eye. The ultraviolet light in turn interacts with special blends of phosphors coating the interior surface of the fluorescent lamp tube that efficiently converts the invisible light into useful white light. Fluorescent lamps require a special power

    14. Fluorescent Lighting Basics | Department of Energy

      Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

      Fluorescent Lighting Basics Fluorescent Lighting Basics October 17, 2013 - 5:39pm Addthis Light from a fluorescent lamp is first created by an electric current conducted through an inert gas producing ultraviolet light that is invisible to the human eye. The ultraviolet light in turn interacts with special blends of phosphors coating the interior surface of the fluorescent lamp tube that efficiently converts the invisible light into useful white light. Fluorescent lamps require a special power

    15. Types of Lighting in Commercial Buildings - Lighting Characteristics

      U.S. Energy Information Administration (EIA) (indexed site)

      "coolness" of the color appearance of the lamp's light. The CCT is given in the Kelvin (K) temperature scale, and the higher the color temperature, the cooler the appearance of...

    16. Effective White Light Options for Parking Area Lighting

      Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

      ... The areas directly under the light poles are not overlit compared to the rest of the ... www.eere.energy.govinformationcenter PNNL-SA-74415 * August 2010 Produced for the U.S. ...

    17. Adoption of Light-Emitting Diodes in Common Lighting Applications

      SciTech Connect (OSTI)

      Yamada, Mary; Chwastyk, Dan

      2013-05-01

      Report estimating LED energy savings in nine applications where LEDs compete with traditional lighting sources such as incandescent, halogen, high-pressure sodium, and certain types of fluorescent. The analysis includes indoor lamp, indoor luminaire, and outdoor luminaire applications.

    18. Induction Lighting: An Old Lighting Technology Made New Again...

      Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

      The technology, however, is far from new. Nikola Tesla demonstrated induction lighting in the late 1890s around the same time that his rival, Thomas Edison, was working to improve ...

    19. Time-resolved soft x-ray spectra from laser-produced Cu plasma...

      Office of Scientific and Technical Information (OSTI)

      Cu plasma The volumetric heating of a thin copper target has been studied with time resolved x-ray spectroscopy. The copper target was heated from a plasma produced using ...

    20. 3D Atmospheric Radiative Transfer for Cloud System-Resolving Models: Forward Modelling and Observations

      SciTech Connect (OSTI)

      Howard Barker; Jason Cole

      2012-05-17

      Utilization of cloud-resolving models and multi-dimensional radiative transfer models to investigate the importance of 3D radiation effects on the numerical simulation of cloud fields and their properties.

    1. Evaluation of high-level clouds in cloud resolving model simulations...

      Office of Scientific and Technical Information (OSTI)

      Evaluation of high-level clouds in cloud resolving model simulations with ARM and KWAJEX observations Citation Details In-Document Search Title: Evaluation of high-level clouds in ...

    2. Resolving to Make Earth Day Last All Year | Department of Energy

      Energy Savers

      Or maybe you liked Chris' idea, and you resolved do whatever you could to save energy and money this year. When we talk about saving energy throughout the year, it's easy to forget ...

    3. Time-resolved x-ray diffraction across water-ices VI/VII transformatio...

      Office of Scientific and Technical Information (OSTI)

      diffraction across water-ices VIVII transformations using dynamic-DAC Citation Details In-Document Search Title: Time-resolved x-ray diffraction across water-ices VIVII ...

    4. Resolving Carbon's Rainbow from Uplands to the Deep-sea | Argonne...

      U.S. Department of Energy (DOE) all webpages (Extended Search)

      Resolving Carbon's Rainbow from Uplands to the Deep-sea Event Sponsor: Environmental Science Division Seminar Start Date: Sep 17 2015 - 11:00am BuildingRoom: Building 240Room...

    5. DOE Resolves Nearly All of its September 2010 Certification Enforcement Actions

      Energy.gov [DOE]

      The Energy Department's new Office of Enforcement, part of the General Counsel's Office, announced today that it has now successfully resolved 26 of the 30 certification enforcement cases brought...

    6. High-harmonic XUV source for time- and angle-resolved photoemission...

      Office of Scientific and Technical Information (OSTI)

      We present a laser-based apparatus for visible pumpXUV probe time- and angle-resolved ... from insulators (UOsub 2) and ultrafast pumpprobe processes in semiconductors (GaAs). ...

    7. Resolving Cancer Heterogeneity by Single Cell Sequencing (7th Annual SFAF Meeting, 2012)

      ScienceCinema (OSTI)

      Xu, Xun [BGI

      2013-02-11

      Xun Xu on "Resolving Cancer Heterogeneity by Single Cell Sequencing" at the 2012 Sequencing, Finishing, Analysis in the Future Meeting held June 5-7, 2012 in Santa Fe, New Mexico.

    8. Detection of spin-resolved electronic structures from a buried ferromagnetic layer utilizing forward Mott scattering

      SciTech Connect (OSTI)

      Ueda, S.; Mizuguchi, M.; Kojima, T.; Takanashi, K.; Ishimaru, S.; Tsujikawa, M.; Shirai, M.

      2014-03-31

      We report ultrahigh-resolution spin-resolved hard X-ray photoemission (HAXPES) for a buried FeNi alloy film. By utilizing the forward Mott scattering in a Au layer on FeNi, our spin-resolved HAXPES method does not require a standard spin detector and allows us to use the multi-channel electron detection system for the high-efficient electron detection as used in conventional photoemission spectroscopy. A combination of the forward Mott scattering and multi-channel detection leads us to measure a clear spin polarization as well as spin-resolved majority and minority states in the Fe 2p core-level spectra without using the standard spin detector. This method enables us to measure spin-resolved core-level spectra for buried ferromagnetic materials.

    9. Light-duty vehicle summary

      SciTech Connect (OSTI)

      Williams, L.S. ); Hu, P.S. )

      1990-07-01

      This document brings you up to date on the most recent fuel economy and market share data for the new light-duty vehicle fleet. Model year 1990 fuel economies are weighted based on the sales of the first six months of model year 1990 (from September 1989 to March 1990). Sales-weighted fuel economy of all new automobiles decreased in the first six months of model year 1990, from 28.0 mpg in model year 1989 to 27.7 mpg. The compact, midsize, and large size classes, which together claimed 75% of the new automobile market, each showed fuel economy declines of 0.4 mpg or more. Unlike automobiles, new 1990 light trucks showed an overall 0.4 mpg gain from model year 1989. This increase was primarily due to the increased fuel economy of the small van size class. In the first half of model year 1990, small van replaced small pickup as the second most popular light truck size class. Although the fuel economy of light trucks improved, the larger market share of automobiles in the light-duty vehicle market (automobiles and light trucks combined) and the decreased fuel economy in automobiles resulted in an overall reduction of 0.2 mpg for the entire light-duty vehicle fleet in the first half of model year 1990. Also, in the first half of model year 1990, light trucks claimed more than 33% of the light-duty vehicle market--a considerable increase from the 19.8% share in 1976. 9 figs., 18 tabs.

    10. (Lighting and) Solid-State Lighting: Science, Technology, Economic

      U.S. Department of Energy (DOE) all webpages (Extended Search)

      Perspectives Lighting and) Solid-State Lighting: Science, Technology, Economic Perspectives - Sandia Energy Energy Search Icon Sandia Home Locations Contact Us Employee Locator Energy & Climate Secure & Sustainable Energy Future Stationary Power Energy Conversion Efficiency Solar Energy Wind Energy Water Power Supercritical CO2 Geothermal Natural Gas Safety, Security & Resilience of the Energy Infrastructure Energy Storage Nuclear Power & Engineering Grid Modernization

    11. Inorganic volumetric light source excited by ultraviolet light

      DOE Patents [OSTI]

      Reed, Scott; Walko, Robert J.; Ashley, Carol S.; Brinker, C. Jeffrey

      1994-01-01

      The invention relates to a composition for the volumetric generation of radiation. The composition comprises a porous substrate loaded with a component capable of emitting radiation upon interaction with an exciting radiation. Preferably, the composition is an aerogel substrate loaded with a component, e.g., a phosphor, capable of interacting with exciting radiation of a first energy, e.g., ultraviolet light, to produce radiation of a second energy, e.g., visible light.

    12. Inorganic volumetric light source excited by ultraviolet light

      DOE Patents [OSTI]

      Reed, S.; Walko, R.J.; Ashley, C.S.; Brinker, C.J.

      1994-04-26

      The invention relates to a composition for the volumetric generation of radiation. The composition comprises a porous substrate loaded with a component capable of emitting radiation upon interaction with an exciting radiation. Preferably, the composition is an aerogel substrate loaded with a component, e.g., a phosphor, capable of interacting with exciting radiation of a first energy, e.g., ultraviolet light, to produce radiation of a second energy, e.g., visible light. 4 figures.

    13. Direct Observation of Phase Transformations in Austenitic Stainless Steel Welds Using In-situ Spatially Resolved and Time-resolved X-ray Diffraction

      SciTech Connect (OSTI)

      Elmer, J.; Wong, J.; Ressler, T.

      1999-09-23

      Spatially resolved x-ray diffraction (SRXRD) and time resolved x-ray diffraction (TRXRD) were used to investigate real time solid state phase transformations and solidification in AISI type 304 stainless steel gas tungsten arc (GTA) welds. These experiments were conducted at Stanford Synchrotron Radiation Laboratory (SSRL) using a high flux beam line. Spatially resolved observations of {gamma} {leftrightarrow} {delta} solid state phase transformations were performed in the heat affected zone (HAZ) of moving welds and time-resolved observations of the solidification sequence were performed in the fusion zone (FZ) of stationary welds after the arc had been terminated. Results of the moving weld experiments showed that the kinetics of the {gamma}{yields}{delta} phase transformation on heating in the HAZ were sufficiently rapid to transform a narrow region surrounding the liquid weld pool to the {delta} ferrite phase. Results of the stationary weld experiments showed, for the first time, that solidification can occur directly to the {delta} ferrite phase, which persisted as a single phase for 0.5s. Upon solidification to {delta}, the {delta} {yields} {gamma} phase transformation followed and completed in 0.2s as the weld cooled further to room temperature.

    14. Time-resolved Spectroscopy of Laser-heated Copper Foils | Stanford

      U.S. Department of Energy (DOE) all webpages (Extended Search)

      Synchrotron Radiation Lightsource Time-resolved Spectroscopy of Laser-heated Copper Foils Tuesday, July 16, 2013 - 11:00am SLAC, Conference Room 137-322 Presented by Kelly Cone, PhD Engineering, Dept. of Applied Science, University of California, Davis The volumetric heating of a thin copper target has been studied with time resolved x-ray spectroscopy. The copper target was heated by a plasma produced using the Lawrence Livermore National Laboratory's Compact Multipulse Terawatt (COMET)

    15. Time-resolved carrier distributions in graphene (Conference) | SciTech

      Office of Scientific and Technical Information (OSTI)

      Connect Conference: Time-resolved carrier distributions in graphene Citation Details In-Document Search Title: Time-resolved carrier distributions in graphene Authors: Gilbertson, Steve Michael [1] ; Durakiewicz, Tomasz [1] ; Zhu, Jian - Xin [1] ; Mohite, Aditya D [1] ; Dattelbaum, Andrew M [1] ; Rodtiguez, George [1] ; Dakovski, Georgi [2] ; Dani, Keshav M [3] + Show Author Affiliations Los Alamos National Laboratory SLAC OKINAWA INSTITUTE OF SCIENCE AND TECHNOLOGY Publication Date:

    16. CORPES 11: International Workshop on Strong Correlations and Angle-Resolved

      U.S. Department of Energy (DOE) all webpages (Extended Search)

      Photoemission Spectroscopy CORPES 11: International Workshop on Strong Correlations and Angle-Resolved Photoemission Spectroscopy July 18-22, 2011 Lawrence Berkeley National Laboratory, California More information Attendees participated in a poster session Thursday on the ALS patio, engaging in conversations over lunch and at the posters. An international workshop entitled "Strong Correlations and Angle-Resolved Photoemission Spectroscopy", or CORPES11 , was held at Berkeley Lab

    17. Scientists Mix Matter and Anti-Matter Results to Resolve Decade-Old Proton

      U.S. Department of Energy (DOE) all webpages (Extended Search)

      Puzzle | Jefferson Lab Scientists Mix Matter and Anti-Matter Results to Resolve Decade-Old Proton Puzzle The CEBAF Large Acceptance Spectrometer, or CLAS, in Jefferson Lab's Experimental Hall B was used to measure electrons during the experiment. The CEBAF Large Acceptance Spectrometer, or CLAS, in Jefferson Lab's Experimental Hall B was used to measure electrons during the experiment. Scientists Mix Matter and Anti-Matter to Resolve Decade-Old Proton Puzzle Fans of science and science

    18. Unified Resolve 2014: A Proof of Concept for Radiological Support to

      Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

      Incident Commanders | Department of Energy Unified Resolve 2014: A Proof of Concept for Radiological Support to Incident Commanders Unified Resolve 2014: A Proof of Concept for Radiological Support to Incident Commanders Daniel Blumenthal*, U.S. Department of Energy ; John Crapo, Oak Ridge Institute for Science and Education; Gerard Vavrina, U.S. Department of Energy; Katharine McLellan McLellan, U.S. Department of Energy; Michael J. Gresalfi, Oak Ridge National Laboratory Abstract: In

    19. Another Side of Light - A

      U.S. Department of Energy (DOE) all webpages (Extended Search)

      The fact that light is a kind of wave is common knowledge today, and a hundred years ago the theory that light is some kind of wave was already well confirmed by experiment. But at that time Einstein found, in a newly-discovered physical law, a clue that there was more to light than the wave theory of those days seemed to suggest. A B C D A. An inconsistency Drop a rock in a lake, and you'll stir up waves. Drop two rocks in different places, and you'll stir up two sets of waves. If you look

    20. Light metal explosives and propellants

      DOE Patents [OSTI]

      Wood, Lowell L.; Ishikawa, Muriel Y.; Nuckolls, John H.; Pagoria, Phillip F.; Viecelli, James A.

      2005-04-05

      Disclosed herein are light metal explosives, pyrotechnics and propellants (LME&Ps) comprising a light metal component such as Li, B, Be or their hydrides or intermetallic compounds and alloys containing them and an oxidizer component containing a classic explosive, such as CL-20, or a non-explosive oxidizer, such as lithium perchlorate, or combinations thereof. LME&P formulations may have light metal particles and oxidizer particles ranging in size from 0.01 .mu.m to 1000 .mu.m.

    1. OLED lighting devices having multi element light extraction and luminescence conversion layer

      DOE Patents [OSTI]

      Krummacher, Benjamin Claus; Antoniadis, Homer

      2010-11-16

      An apparatus such as a light source has a multi element light extraction and luminescence conversion layer disposed over a transparent layer of the light source and on the exterior of said light source. The multi-element light extraction and luminescence conversion layer includes a plurality of light extraction elements and a plurality of luminescence conversion elements. The light extraction elements diffuses the light from the light source while luminescence conversion elements absorbs a first spectrum of light from said light source and emits a second spectrum of light.

    2. Device structure for OLED light device having multi element light extraction and luminescence conversion layer

      DOE Patents [OSTI]

      Antoniadis; Homer , Krummacher; Benjamin Claus

      2008-01-22

      An apparatus such as a light source has a multi-element light extraction and luminescence conversion layer disposed over a transparent layer of the light source and on the exterior of said light source. The multi-element light extraction and luminescence conversion layer includes a plurality of light extraction elements and a plurality of luminescence conversion elements. The light extraction elements diffuses the light from the light source while luminescence conversion elements absorbs a first spectrum of light from said light source and emits a second spectrum of light.

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

      Office of Scientific and Technical Information (OSTI)

      Country of Publication: United States Language: English Subject: 32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION; ENVIRONMENTAL IMPACTS; LIFE CYCLE; LIGHT BULBS; ...

    4. Light ESCO | Open Energy Information

      Open Energy Information (Open El) [EERE & EIA]

      ESCO Jump to: navigation, search Name: Light ESCO Place: Rio de Janeiro, Brazil Zip: Caixa Postal 0571 Product: Rio de Janeiro-based energy service company that specialises in...

    5. The Momentum of Light - A

      Office of Scientific and Technical Information (OSTI)

      The theory of relativity suggested that the energy quanta of light should also be quanta ... A. Momentum Any material object is a lump of energy. That is a major implication of ...

    6. Columbia Water & Light- Solar Rebates

      Energy.gov [DOE]

      Columbia Water & Light electric customers are eligible for a $400 rebate for the purchase of a new solar water heater. To apply for this rebate, a customer submits a pre-approval application to...

    7. Incandescent Lighting | Department of Energy

      Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

      These lamps produce visible light by heating a tiny coil or filament of tungsten wire that glows when it is heated by an electrical current. "Long-life" lamps are an example of ...

    8. Next Generation Light Source Workshops

      U.S. Department of Energy (DOE) all webpages (Extended Search)

      Next Generation Light Source Workshops A series of workshops will be held in late August with the goal of refining the scientific drivers for the facility and translating the...

    9. Projection screen having reduced ambient light scattering

      SciTech Connect (OSTI)

      Sweatt, William C.

      2010-05-11

      An apparatus and method for improving the contrast between incident projected light and ambient light reflected from a projection screen are described. The efficiency of the projection screen for reflection of the projected light remains high, while permitting the projection screen to be utilized in a brightly lighted room. Light power requirements from the projection system utilized may be reduced.

    10. TITLE III EVALUATION REPORT FOR THE SUBSURFACE LIGHTING SYSTEM

      SciTech Connect (OSTI)

      L.J. Fernandez

      1998-09-09

      The objective of this evaluation is to provide recommendations to ensure consistency between the technical baseline requirements, baseline design, and the as-constructed Subsurface Lighting System. Recommendations for resolving discrepancies between the as-constructed system, and the technical baseline requirements are included in this report. Cost and Schedule estimates are provided for all recommended modifications. This report does not address items which do not meet current safety or code requirements. These items are identified to the CMO and immediate action is taken to correct the situation. The report does identify safety and code items for which the A/E is recommending improvements. The recommended improvements will exceed the minimum requirements of applicable code and safety guide lines. These recommendations are intended to improve and enhance the operation and maintenance of the facility.

    11. Highly reactive light-dependent monoterpenes in the Amazon

      SciTech Connect (OSTI)

      Jardine, A. B.; Jardine, K. J.; Fuentes, J. D.; Martin, S. T.; Martins, G.; Durgante, F.; Carneiro, V.; Higuchi, N.; Manzi, A. O.; Chambers, J. Q.

      2015-03-06

      Despite orders of magnitude difference in atmospheric reactivity and great diversity in biological functioning, little is known about monoterpene speciation in tropical forests. Here we report vertically resolved ambient air mixing ratios for 12 monoterpenes in a central Amazon rainforest including observations of the highly reactive cis-β-ocimene (160 ppt), trans-β-ocimene (79 ppt), and terpinolene (32 ppt) which accounted for an estimated 21% of total monoterpene composition yet 55% of the upper canopy monoterpene ozonolysis rate. All 12 monoterpenes showed a mixing ratio peak in the upper canopy, with three demonstrating subcanopy peaks in 7 of 11 profiles. Leaf level emissions of highly reactive monoterpenes accounted for up to 1.9% of photosynthesis confirming light-dependent emissions across several Amazon tree genera. These results suggest that highly reactive monoterpenes play important antioxidant roles during photosynthesis in plants and serve as near-canopy sources of secondary organic aerosol precursors through atmospheric photooxidation via ozonolysis.

    12. Series cell light extinction monitor

      DOE Patents [OSTI]

      Novick, Vincent J.

      1990-01-01

      A method and apparatus for using the light extinction measurements from two or more light cells positioned along a gasflow chamber in which the gas volumetric rate is known to determine particle number concentration and mass concentration of an aerosol independent of extinction coefficient and to determine estimates for particle size and mass concentrations. The invention is independent of particle size. This invention has application to measurements made during a severe nuclear reactor fuel damage test.

    13. Energy Efficiency Through Lighting Upgrades

      Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

      Chickasaw Nation Energy Efficiency Through Lighting Upgrades The Chickasaw Nation  The Chickasaw Nation consists of 13 counties in southeastern Oklahoma  Tribal enrollment exceeds 35,000  The Tribal headquarters complex is located in Ada, Oklahoma  The Division of Commerce operates 17 facilities which are included in this grant Chickasaw Nation Boundaries Main Objectives  Retrofit Casino Lighting to the most energy efficient option available  Reduce energy consumption and

    14. Energy Efficiency through Lighting Upgrades

      Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

      Through Lighting Upgrades The Chickasaw Nation The Chickasaw Nation * The Chickasaw Nation consists of 13.5 counties in southeastern Oklahoma * Tribal enrollment exceeds 35,000 * The Tribal headquarters complex is located in Ada, Oklahoma * The Division of Commerce operates 17 facilities most of which are included in this grant Chickasaw Nation Boundaries Main Objectives * Retrofit Casino Lighting to the most energy efficient option available * Reduce energy consumption and energy bills by 30%

    15. Shedding Light on Nanocrystal Defects

      U.S. Department of Energy (DOE) all webpages (Extended Search)

      Shedding Light on Nanocrystal Defects Shedding Light on Nanocrystal Defects Print Thursday, 20 June 2013 10:41 Nanocrystals have been the focus of much scientific interest lately, given their various advantageous mechanical properties. Their resistance to stress has had researchers proposing nanocrystals as a promising new protective coating for advanced gas turbine and jet engines. But recent studies conducted at the ALS show that the tiny size of nanocrystals does not safeguard them from

    16. Failure Mode Classification for Life Prediction Modeling of Solid-State Lighting

      SciTech Connect (OSTI)

      Sakalaukus, Peter Joseph

      2015-08-01

      Since the passing of the Energy Independence and Security Act of 2007, the U.S. government has mandated greater energy independence which has acted as a catalyst for accelerating and facilitating research efforts toward the development and deployment of market-driven solutions for energy-saving homes, buildings and manufacturing, as well as sustainable transportation and renewable electricity generation. As part of this effort, an emphasis toward advancing solid-state lighting technology through research, development, demonstration, and commercial applications is assisting in the phase out of the common incandescent light bulb, as well as developing a more economical lighting source that is less toxic than compact fluorescent lighting. This has led lighting manufacturers to pursue SSL technologies for a wide range of consumer lighting applications. An SSL luminaire’s lifetime can be characterized in terms of lumen maintenance life. Lumen maintenance or lumen depreciation is the percentage decrease in the relative luminous flux from that of the original, pristine luminous flux value. Lumen maintenance life is the estimated operating time, in hours, when the desired failure threshold is projected to be reached at normal operating conditions. One accepted failure threshold of SSL luminaires is lumen maintenance of 70% -- a 30% reduction in the light output of the luminaire. Currently, the only approved lighting standard that puts forth a recommendation for long-term luminous flux maintenance projections towards a specified failure threshold of an SSL luminaire is the IES TM-28-14 (TM28) standard. iii TM28 was derived as a means to compare luminaires that have been tested at different facilities, research labs or companies. TM28 recommends the use of the Arrhenius equation to determine SSL device specific reaction rates from thermally driven failure mechanisms used to characterize a single failure mode – the relative change in the luminous flux output or “light

    17. Daylighting | Department of Energy

      Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

      for natural lighting and temperature regulation-is one building strategy that can save ... Bulbs Turning Off Lights Design Controls Daylighting Lighting Standards Vehicles & Fuels

    18. Lighting system replacement brings energy costs down, light levels up

      SciTech Connect (OSTI)

      Radmer, D.J.

      1984-11-08

      The R.J. Frisby Mfg. Co. operates on three shifts and produces precision screw machine products for a variety of industries, including automotive, marine, machine tool, hydraulics and pneumatics, business machines, electrical and electronics, photography, and precision instruments. The required degree of manufacturing precision demands high light levels in manufacturing areas. When the 100,000 sq ft plant was built in 1973, mercury vapor lighting was installed consistent with the current state of the art for lighting such facilities. In the ensuing years, it became apparent that the soaring electric bills that came in the wake of the Arab oil embargo of 1973-74 would have to be controlled. Estimates by the U.S. Department of Energy indicated that electric energy costs were likely to rise by 160 percent over the next 10 yr. Based on this estimate, and the fact that lighting accounted for $70,000, or half of the annual electric bill, it was estimated that $900,000 to $1,000,000 would be spent for lighting energy over the next decade. The concern over the probability of rapidly escalating electrical costs was soon justified when, in three steps over one 12 mo period, the electric energy rate increased from $0.0305/kwh to $0.0416/kwh -more than a 36 percent increase. During that same period, the demand charge was raised in two steps from $3.75/kw to $4.85/kw --more than a 29 percent increase.

    19. Save Money with LED Holiday Light Strings

      Energy.gov [DOE]

      LED (or light emitting diode) light strings can use 90% less energy than regular incandescent light strings. They also last about ten times longer, are cooler than incandescents (reducing fire hazards), and are more durable.

    20. Solid-State Lighting | Department of Energy

      Energy Savers

      Lighting Solid-State Lighting 2013 DOE Solid-State Lighting Program Overview ssl-overviewbrochurefeb2013.pdf (3.05 MB) More Documents & Publications July 2016 Postings January ...

    1. Solid-State Lighting | Department of Energy

      U.S. Department of Energy (DOE) all webpages (Extended Search)

      of Princeton's approach to solid-state lighting. Read more A Comprehensive Program Solid-state lighting (SSL) technology has the potential to reduce U.S. lighting energy usage by...

    2. D light design | Open Energy Information

      Open Energy Information (Open El) [EERE & EIA]

      light design Jump to: navigation, search Name: d.light design Place: New Delhi, Delhi (NCT), India Zip: 1110049 Product: d.light is a US-founded, India-based designer and...

    3. Controlling Light | Photosynthetic Antenna Research Center

      U.S. Department of Energy (DOE) all webpages (Extended Search)

      Controlling Light June 29, 2016 Controlling Light New protection for photosynthetic organisms VIEW ARTICLE HERE https://source.wustl.edu/2016/06/controlling-light-new-protection-photosynthetic...

    4. Outdoor Solar Lighting | Department of Energy

      Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

      Some solar lighting systems are self-contained units: You only need to place the lights in a sunny location. Others have the lights separate from a solar cell panel, in which case ...

    5. Quantitative analysis of directional spontaneous emission spectra from light sources in photonic crystals

      SciTech Connect (OSTI)

      Nikolaev, Ivan S.; Lodahl, Peter; Vos, Willem L.

      2005-05-15

      We have performed angle-resolved measurements of spontaneous-emission spectra from laser dyes and quantum dots in opal and inverse opal photonic crystals. Pronounced directional dependencies of the emission spectra are observed: angular ranges of strongly reduced emission adjoin with angular ranges of enhanced emission. It appears that emission from embedded light sources is affected both by the periodicity and by the structural imperfections of the crystals: the photons are Bragg diffracted by lattice planes and scattered by unavoidable structural disorder. Using a model comprising diffuse light transport and photonic band structure, we quantitatively explain the directional emission spectra. This work provides detailed understanding of the transport of spontaneously emitted light in real photonic crystals, which is essential in the interpretation of quantum optics in photonic-band-gap crystals and for applications wherein directional emission and total emission power are controlled.

    6. Flexible liquid core light guide with focusing and light shaping attachments

      DOE Patents [OSTI]

      Kross, Brian J.; Majewski, Stanislaw; Zorn, Carl J.; Majewski, Lukasz A.

      1997-01-01

      A liquid light guide system for ultraviolet light is disclosed that has a light shaping arrangement for the emitted light, a stable liquid core and sheath and reliable and effective end closures.

    7. Flexible liquid core light guide with focusing and light shaping attachments

      DOE Patents [OSTI]

      Kross, B.J.; Majewski, S.; Zorn, C.J.; Majewski, L.A.

      1997-11-04

      A liquid light guide system for ultraviolet light is disclosed that has a light shaping arrangement for the emitted light, a stable liquid core and sheath and reliable and effective end closures. 12 figs.

    8. LED Lighting Basics | Department of Energy

      Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

      LED Lighting Basics LED Lighting Basics August 16, 2013 - 10:07am Addthis Light-emitting diodes (LEDs) efficiently produce light in a fundamentally different way than any legacy or traditional light source. LEDs are compound semiconductor devices that produce light when an appropriate electrical current is applied. Applying electrical current causes electrons to flow from one material in the structure to another and this in turn causes a series of complex interactions at an atomic level that

    9. Adaptive Street Lighting Controls | Department of Energy

      Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

      Information Resources » Webcasts » Adaptive Street Lighting Controls Adaptive Street Lighting Controls This two-part DOE Municipal Solid-State Street Lighting Consortium webinar focused on LED street lighting equipped with adaptive control components. In Part I, presenters Amy Olay of the City of San Jose, CA, and Kelly Cunningham of the California Lighting Technology Center at UC Davis discussed their experiences as early adopters of these smart street lighting systems. In Part II, presenters

    10. Testimonials - Partnerships in LED Lighting - Philips Lumileds

      Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

      Lighting, LLC | Department of Energy LED Lighting - Philips Lumileds Lighting, LLC Testimonials - Partnerships in LED Lighting - Philips Lumileds Lighting, LLC Addthis Text Version The words "Office of Energy Efficiency & Renewable Energy, U.S. Department of Energy, EERE Partnership Testimonials," appear on the screen, followed by "Sunil Thomas, General Manager of San Jose Manufacturing Site, Philips Lumileds Lighting, LLC" and footage of a man sitting in a showcase

    11. Outdoor Area Lighting | Department of Energy

      Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

      Outdoor Area Lighting Outdoor Area Lighting This document reviews the major design and specification concerns for outdoor area lighting, and discusses the potential for LED luminaires to save energy plant-wide while providing high quality lighting for outdoor areas. Outdoor Area Lighting (June 2008) (3.16 MB) More Documents & Publications Philadelphia International Airport Apron Lighting: LED System Performance in a Trial Installation Model Specification for LED Roadway Luminaires, V2.0

    12. Picture of the Week: Circuits of light

      U.S. Department of Energy (DOE) all webpages (Extended Search)

      5 Circuits of light This artistic conceptualization of circuits made of light represents a new capability that could lead to advanced sensor systems, quantum information processing technology, and more. March 25, 2016 circuits of light artist's conception Circuits of light: artist's conception View a super-large 300 dpi version of this image on our Lab Flickr site. Circuits of light This artistic conceptualization of circuits made of light represents a new capability that could lead to advanced

    13. Connected Lighting Systems | Department of Energy

      Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

      Connected Lighting Systems Connected Lighting Systems The replacement of today's lighting infrastructure with LED products offers the potential for future connected lighting systems that could become a data-collection platform that enables greater energy savings in buildings and cities. Such connected lighting systems can not only dras-tically improve the energy performance of lighting and other building systems, but also enable a wide array of services, benefits, and revenue streams that would

    14. Fixed target matrix for femtosecond time-resolved and in situ serial micro-crystallography

      SciTech Connect (OSTI)

      Mueller, C.; Marx, A.; Epp, S. W.; Zhong, Y.; Kuo, A.; Balo, A. R.; Soman, J.; Schotte, F.; Lemke, H. T.; Owen, R. L.; Pai, E. F.; Pearson, A. R.; Olson, J. S.; Anfinrud, P. A.; Ernst, O. P.; Miller, R. J. Dwayne

      2015-08-18

      We present a crystallography chip enabling in situ room temperature crystallography at microfocus synchrotron beamlines and X-ray free-electron laser (X-FEL) sources. Compared to other in situ approaches, we observe extremely low background and high diffraction data quality. The chip design is robust and allows fast and efficient loading of thousands of small crystals. The ability to load a large number of protein crystals, at room temperature and with high efficiency, into prescribed positions enables high throughput automated serial crystallography with microfocus synchrotron beamlines. In addition, we demonstrate the application of this chip for femtosecond time-resolved serial crystallography at the Linac Coherent Light Source (LCLS, Menlo Park, California, USA). As a result, the chip concept enables multiple images to be acquired from each crystal, allowing differential detection of changes in diffraction intensities in order to obtain high signal-to-noise and fully exploit the time resolution capabilities of XFELs.

    15. 6

      Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

      helps you understand your purchase. The label has the lumens - or brightness - of the bulb, the estimated operating cost and life, and the color of the light (from warm/yellow, to white, to cool/blue). Energy-saving bulbs come in a wide range of colors. energysavers.gov/lumens Lumens tell you how bright a bulb is. More lumens mean brighter light. When replacing a 60-watt traditional incandescent bulb, look for a new bulb that gives you about 800 lumens. Choose your next light bulb for

    16. TipCard_Front_back_final_rev2.indd

      Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

      helps you understand your purchase. The label has the lumens - or brightness - of the bulb, the estimated operating cost and life, and the color of the light (from warm/yellow, to white, to cool/blue). Energy-saving bulbs come in a wide range of colors. energysavers.gov/lumens Lumens tell you how bright a bulb is. More lumens mean brighter light. When replacing a 60-watt traditional incandescent bulb, look for a new bulb that gives you about 800 lumens. Choose your next light bulb for

    17. Outdoor Area Lighting | Department of Energy

      Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

      for outdoor areas. Outdoor Area Lighting (June 2008) More Documents & Publications Philadelphia International Airport Apron Lighting: LED System Performance in a Trial...

    18. Types of Lighting in Commercial Buildings - Introduction

      U.S. Energy Information Administration (EIA) (indexed site)

      Introduction Lighting is a major consumer of electricity in commercial buildings and a target for energy savings through use of energy-efficient light sources along with other...

    19. Solid-State Lighting Program Strategy

      Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

      James R. Brodrick, Ph.D. April 22, 2014 U.S. Department of Energy Solid-State Lighting Program Strategy MARKET * Many companies * Semiconductors :: Lighting * Large business ...

    20. Carbon Power & Light, Inc | Open Energy Information

      Open Energy Information (Open El) [EERE & EIA]

      Power & Light, Inc Jump to: navigation, search Name: Carbon Power & Light, Inc Place: Wyoming Phone Number: 307-326-5206 Website: www.carbonpower.com Facebook: https:...