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Note: This page contains sample records for the topic "lamp ballasts general" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
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We encourage you to perform a real-time search of NLEBeta
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1

Study of high frequency & low frequency electronic ballasts for HID lamps  

E-Print Network [OSTI]

High-intensity discharge (HID) lamp electronic ballasting is receiving increasing attention in the recent years as low wattage HID lighting systems are finding indoor applications. Advantages of high frequency electronic ballast for HID lamps...

Peng, Hua

1997-01-01T23:59:59.000Z

2

Performance of "Ultra-High" Efficient Electronic Ballast for HID Lamps  

E-Print Network [OSTI]

. Index Terms--Electronic ballast, HID lamps, resonant inverter, power loss modeling, Silicon Carbide (Si of >95% for the ballast. Diode bridge rectifier EMI filter Resonant Inverter Power Factor Correction 75423, USA Abstract--A new electronic ballast circuit for High Intensity Discharge (HID) lamps

Tolbert, Leon M.

3

EA-1881: Energy Conservation Program: Energy Conservation Standards for Fluorescent Lamp Ballasts  

Broader source: Energy.gov [DOE]

This EA evaluates the environmental impacts of a proposal to amend energy conservation standards for various consumer products and certain commercial and industrial equipment, including fluorescent lamp ballasts.

4

Fluorescent Lamp Ballasts | Department of Energy  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:YearRound-UpHeat PumpRecordFederal7.pdfFlash_2010_-24.pdfOverview Flow Cells forFluorescent Lamp

5

Energy savings with solid-state ballasted high-pressure sodium lamps  

SciTech Connect (OSTI)

The performance of three types of solid-state ballasts used to operate high-pressure sodium lamps is discussed. Each type of solid-state ballast has been designed to operate an HPS lamp of a different wattage (150, 200, and 400 watts). The performance of these ballasts compared to standard core-coil ballasts operating the same HPS lamps shows that system efficiency improves as much as 17%. The solid-state ballasted HPS system also demonstrates excellent regulation with respect to input voltage and output power. These new ballasts can dim the HPS lamps and reduce flicker from more than 60% to less than 3%. Refitting street lighting with these new HPS systims provides an attractive return on initial capital investment.

Verderber, R.R.; Morse, O.

1981-04-01T23:59:59.000Z

6

Zero energy-storage ballast for compact fluorescent lamps  

DOE Patents [OSTI]

A CFL ballast includes complementary-type switching devices connected in series with their gates connected together at a control node. The switching devices supply a resonant tank circuit which is tuned to a frequency near, but slightly lower than, the resonant frequency of a resonant control circuit. As a result, the tank circuit restarts oscillations immediately following each zero crossing of the bus voltage. Such rapid restarts avoid undesirable flickering while maintaining the operational advantages and high efficacy of the CFL ballast.

Schultz, William Newell (Niskayuna, NY); Thomas, Robert James (Rexford, NY)

1999-01-01T23:59:59.000Z

7

Zero energy-storage ballast for compact fluorescent lamps  

DOE Patents [OSTI]

A CFL ballast includes complementary-type switching devices connected in series with their gates connected together at a control node. The switching devices supply a resonant tank circuit which is tuned to a frequency near, but slightly lower than, the resonant frequency of a resonant control circuit. As a result, the tank circuit restarts oscillations immediately following each zero crossing of the bus voltage. Such rapid restarts avoid undesirable flickering while maintaining the operational advantages and high efficacy of the CFL ballast. 4 figs.

Schultz, W.N.; Thomas, R.J.

1999-08-31T23:59:59.000Z

8

IEEE Power Electronics Specialists Conference, PESC-97, 39-45, St. Louis, 1997. A MHz Electronic Ballast for Automotive-Type HID Lamps  

E-Print Network [OSTI]

Ballast for Automotive-Type HID Lamps Michael Gulko and Sam Ben-Yaakov* Power Electronics Laboratory-Resonance Inverter (CS-PPRI) topology [2] as a ballast for low wattage HID lamps designated as automotive headlights lamp option to replace the conventional 'halogen' type headlights. Unfortunately, application of HID

9

2015-01-28 Issuance: Test Procedure for Fluorescent Lamp Ballasts; Final Rule Correction  

Broader source: Energy.gov [DOE]

This document is a pre-publication Federal Register final rule correction regarding test procedures for fluorescent lamp ballasts, as issued by the Deputy Assistant Secretary for Energy Efficiency on January 28, 2014. Though it is not intended or expected, should any discrepancy occur between the document posted here and the document published in the Federal Register, the Federal Register publication controls. This document is being made available through the Internet solely as a means to facilitate the public's access to this document.

10

Max Tech and Beyond: Fluorescent Lamps  

E-Print Network [OSTI]

Laboratory, LBNL-4998E. General Electric Lamp and BallastEuropean Union General Electric High Intensity DischargeEnergy Saver”; and General Electric has a 26 watt T5 lamp (

Scholand, Michael

2012-01-01T23:59:59.000Z

11

Metal Halide Lamp Ballast and Fixture | Department of Energy  

Energy Savers [EERE]

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Office of Inspector General Office0-72.pdfGeorgeDoesn't32 Master EM ProjectMemoDepartment ofEMMesh GenerationMetal

12

General service incandescent lamp with improved efficiency  

SciTech Connect (OSTI)

A high efficiency general service incandescent lamp is disclosed. The disclosed improved general service incandescent lamp has an outer and an inner envelope. The inner envelope has a relatively small housing containing a halogen gas and a relatively high pressure efficient fill-gas and in which a low voltage filament is spatially disposed therein.

Berlec, I.

1985-06-18T23:59:59.000Z

13

Design of Resonant Inverters for Optimal Efficiency over Lamp Life in Electronic Ballast  

E-Print Network [OSTI]

from a typical increase in an HID lamp equivalent resistance RI,, ovet its lifetime of more than 100 controlled resonant inverters to drive HID lamps. Considering the variation of the lamp resistance over its the lamp resistance during its Iifetime and system frequency range limitations. Design constraints have

14

General Service LED Lamps | Department of Energy  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:YearRound-UpHeatMulti-Dimensional Subject: Guidance for naturalGeneral Service LED Lamps General

15

April 2002, L. Henn-Lecordier LAMP general operating procedures 1 Laboratory for Advanced Materials Processing  

E-Print Network [OSTI]

written request ­ Receive safety training from DES ­ Lab orientation with the lab manager ­ Equipment training and qualification #12;April 2002, L. Henn-Lecordier LAMP general operating procedures 9 LAMP "10

Rubloff, Gary W.

16

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

Broader source: Energy.gov [DOE]

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

17

A SPICE Compatible Model of High Intensity Discharge Lamps  

E-Print Network [OSTI]

from the arc's * Corresponding author behavior of HID lamps. This model are derived from the arc-linear resistance of the lamp, is the global specific conductance of the plasma, V is the volume of the plasma, L is the length of plasma and S is the cross section. ~ Vin G1 Lamp Model Ballast v(lamp) i(lamp) Analytical

18

Compact fluorescent lamp using horizontal and vertical insulating septums and convective venting geometry  

DOE Patents [OSTI]

A novel design is described for a compact fluorescent lamp, including a lamp geometry which will increase light output and efficacy of the lamp in a base down operating position by providing horizontal and vertical insulating septums positioned in the ballast compartment of the lamp to provide a cooler coldspot. Selective convective venting provides additional cooling of the ballast compartment. 9 figs.

Siminovitch, M.

1998-02-10T23:59:59.000Z

19

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

E-Print Network [OSTI]

A trapazoid for each type and lamp wattage is published bylamp wattage for the core-coil ballast was measured with a dynamometer type

Ailing, W.R.

2013-01-01T23:59:59.000Z

20

Retail Lamps Study 3.1: Dimming, Flicker, and Power Quality Characteristics of LED A Lamps.  

SciTech Connect (OSTI)

To date, all three reports in the retail lamps series have focused on basic performance parameters, such as lumen output, efficacy, and color quality. This report goes a step further, examining the photoelectric characteristics (i.e., dimming and flicker) of a subset of lamps from CALiPER Retails Lamps Study 3. Specifically, this report focuses on the dimming, power quality, and flicker characteristics of 14 LED A lamps, as controlled by four different retail-available dimmers. The results demonstrate notable variation across the various lamps, but little variation between the four dimmers. Overall, the LED lamps: ~tended to have higher relative light output compared to the incandescent and halogen benchmark at the same dimmer output signal (RMS voltage). The lamps’ dimming curves (i.e., the relationship between control signal and relative light output) ranged from linear to very similar to the square-law curve typical of an incandescent lamp. ~generally exhibited symmetrical behavior—the same dimming curve—when measured proceeding from maximum to minimum or minimum to maximum control signal. ~mostly dimmed below 10% of full light output, with some exceptions for specific lamp and dimmer combinations ~exhibited a range of flicker characteristics, with many comparing favorably to the level typical of a magnetically-ballasted fluorescent lamp through at least a majority of the dimming range. ~ always exceeded the relative (normalized) efficacy over the dimming range of the benchmark lamps, which rapidly decline in efficacy when they are dimmed. This report generally does not attempt to rank the performance of one product compared to another, but instead focuses on the collective performance of the group versus conventional incandescent or halogen lamps, the performance of which is likely to be the baseline for a majority of consumers. Undoubtedly, some LED lamps perform better—or more similar to conventional lamps—than others. Some perform desirably for one characteristic, but not others. Consumers (and specifiers) may have a hard time distinguishing better-performing lamps from one another; at this time, physical experimentation is likely the best evaluation tool.

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

2014-12-14T23:59:59.000Z

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


21

The effects of supply harmonics on the performance of compact fluorescent lamps  

SciTech Connect (OSTI)

This paper describes a performance evaluation of ten compact fluorescent lighting systems operated with sinusoidal and distorted voltage waveform conditions. The lamps were either provided with an electronic ballast, a magnetic core ballast or a magnetic core ballast with a power factor correction circuit. The test results show that the electrical performance of the compact fluorescent lamps for both sinusoidal and distorted voltage waveform operation is related to the different types of ballast used. The cost of operation of these compact fluorescent lamps was calculated and compared to the cost of a conventional 60 W incandescent lamp.

Arseneau, R.; Ouellette, M.

1993-04-01T23:59:59.000Z

22

Technical support document: Energy efficiency standards for consumer products: Room air conditioners, water heaters, direct heating equipment, mobile home furnaces, kitchen ranges and ovens, pool heaters, fluorescent lamp ballasts and television sets. Volume 1, Methodology  

SciTech Connect (OSTI)

The Energy Policy and Conservation Act (P.L. 94-163), as amended, establishes energy conservation standards for 12 of the 13 types of consumer products specifically covered by the Act. The legislation requires the Department of Energy (DOE) to consider new or amended standards for these and other types of products at specified times. DOE is currently considering amending standards for seven types of products: water heaters, direct heating equipment, mobile home furnaces, pool heaters, room air conditioners, kitchen ranges and ovens (including microwave ovens), and fluorescent light ballasts and is considering establishing standards for television sets. This Technical Support Document presents the methodology, data, and results from the analysis of the energy and economic impacts of the proposed standards. This volume presents a general description of the analytic approach, including the structure of the major models.

Not Available

1993-11-01T23:59:59.000Z

23

Optimized Magnetic Components Improve Efficiency of Compact Fluorescent Lamps  

E-Print Network [OSTI]

xtures (designed for incandescent bulbs) has allowed residential and small commercial electric customers of incandescent lamps and last 10 times longer [1]. High-frequency electronic ballasts are used to power CFLs

24

Compact Fluorescent Plug-In Ballast-in-a-Socket  

SciTech Connect (OSTI)

The primary goal of this program was to develop a ballast system for plug-in CFLs (compact fluorescent lamps) that will directly replace standard metal shell, medium base incandescent lampholders (such as Levition No. 6098) for use with portable lamp fixtures, such as floor, table and desk lamps. A secondary goal was to identify a plug-in CFL that is optimized for use with this ballast. This Plug-in CFL Ballastin-a-Socket system will allow fixture manufacturers to easily manufacture CFL-based high-efficacy portable fixtures that provide residential and commercial consumers with attractive, cost-effective, and energy-efficient fixtures for use wherever portable incandescent fixtures are used today. The advantages of this proposed system over existing CFL solutions are that the fixtures can only be used with high-efficacy CFLs, and they will be more attractive and will have lower life-cycle costs than screw-in or adapter-based CFL retrofit solutions. These features should greatly increase the penetration of CFL's into the North American market. Our work has shown that using integrated circuits it is quite feasible to produce a lamp-fixture ballast of a size comparable to the current Edison-screw 3-way incandescent fixtures. As for price points for BIAS-based fixtures, end-users polled by the Lighting Research Institute at RPI indicated that they would pay as much as an additional $10 for a lamp containing such a ballast. The ballast has been optimized to run with a 26 W amalgam triple biax lamp in the base-down position, yet can accept non-amalgam versions of the lamp. With a few part alterations, the ballast can be produced to support 32 W lamps as well. The ballast uses GE's existing L-Comp[1] power topology in the circuit so that the integrated circuit design would be a design that could possibly be used by other CFL and EFL products with minor modifications. This gives added value by reducing cost and size of not only the BIAS, but also possibly other integral CFL and future dimmable integral and plug-in versions of the EFL products.

Rebecca Voelker

2001-12-21T23:59:59.000Z

25

Convection venting lensed reflector-type compact fluorescent lamp system  

DOE Patents [OSTI]

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

Pelton, B.A.; Siminovitch, M.

1997-07-29T23:59:59.000Z

26

Monolithic ballasted penetrator  

DOE Patents [OSTI]

The present invention is a monolithic ballasted penetrator capable of delivering a working payload to a hardened target, such as reinforced concrete. The invention includes a ballast made from a dense heavy material insert and a monolithic case extending along an axis and consisting of a high-strength steel alloy. The case includes a nose end containing a hollow portion in which the ballast is nearly completely surrounded so that no movement of the ballast relative to the case is possible during impact with a hard target. The case is cast around the ballast, joining the two parts together. The ballast may contain concentric grooves or protrusions that improve joint strength between the case and ballast. The case further includes a second hollow portion; between the ballast and base, which has a payload fastened within this portion. The penetrator can be used to carry instrumentation to measure the geologic character of the earth, or properties of arctic ice, as they pass through it.

Hickerson, Jr., James P. (Cedar Crest, NM); Zanner, Frank J. (Sandia Park, NM); Baldwin, Michael D. (Albuquerque, NM); Maguire, Michael C. (Worcester, MA)

2001-01-01T23:59:59.000Z

27

Max Tech and Beyond: High-Intensity Discharge Lamps  

SciTech Connect (OSTI)

High-intensity discharge (HID) lamps are most often found in industrial and commercial applications, and are the light source of choice in street and area lighting, and sports stadium illumination. HID lamps are produced in three types - mercury vapor (MV), high pressure sodium (HPS) and metal halide (MH). Of these, MV and MH are considered white-light sources (although the MV exhibits poor color rendering) and HPS produces a yellow-orange color light. A fourth lamp, low-pressure sodium (LPS), is not a HID lamp by definition, but it is used in similar applications and thus is often grouped with HID lamps. With the notable exception of MV which is comparatively inefficient and in decline in the US from both a sales and installed stock point of view; HPS, LPS and MH all have efficacies over 100 lumens per watt. The figure below presents the efficacy trends over time for commercially available HID lamps and LPS, starting with MV and LPS in 1930's followed by the development of HPS and MH in the 1960's. In HID lamps, light is generated by creating an electric arc between two electrodes in an arc tube. The particles in the arc are partially ionized, making them electrically conductive, and a light-emitting 'plasma' is created. This arc occurs within the arc tube, which for most HID lamps is enclosed within an evacuated outer bulb that thermally isolates and protects the hot arc tube from the surroundings. Unlike a fluorescent lamp that produces visible light through down-converting UV light with phosphors, the arc itself is the light source in an HID lamp, emitting visible radiation that is characteristic of the elements present in the plasma. Thus, the mixture of elements included in the arc tube is one critical factor determining the quality of the light emitted from the lamp, including its correlated color temperature (CCT) and color rendering index (CRI). Similar to fluorescent lamps, HID lamps require a ballast to start and maintain stable operating conditions, and this necessitates additional power beyond that used by the lamp itself. HID lamps offer important advantages compared to other lighting technologies, making them well suited for certain applications. HID lamps can be very efficient, have long operating lives, are relatively temperature-insensitive and produce a large quantity of light from a small package. For these reasons, HID lamps are often used when high levels of illumination are required over large areas and where operating and maintenance costs must be kept to a minimum. Furthermore, if the installation has a significant mounting height, high-power HID lamps can offer superior optical performance luminaires, reducing the number of lamps required to illuminate a given area. The indoor environments best suited to HID lamps are those with high ceilings, such as those commonly found in industrial spaces, warehouses, large retail spaces, sports halls and large public areas. Research into efficacy improvements for HID lighting technologies has generally followed market demand for these lamps, which is in decline for MV and LPS, has reached a plateau for HPS and is growing for MH. Several manufacturers interviewed for this study indicated that although solid-state lighting was now receiving the bulk of their company's R&D investment, there are still strong HID lamp research programs, which concentrate on MH technologies, with some limited amount of investment in HPS for specific niche applications (e.g., agricultural greenhouses). LPS and MV lamps are no longer being researched or improved in terms of efficacy or other performance attributes, although some consider MH HID lamps to be the next-generation MV lamp. Thus, the efficacy values of commercially available MV, LPS and HPS lamps are not expected to increase in the next 5 to 10 years. MH lamps, and more specifically, ceramic MH lamps are continuing to improve in efficacy as well as light quality, manufacturability and lamp life. Within an HID lamp, the light-producing plasma must be heated to sufficiently high temperatures to achieve high efficiencie

Scholand, Michael

2012-04-01T23:59:59.000Z

28

On-site demonstration procedure for solid-state fluorescent ballast  

SciTech Connect (OSTI)

The report was presented to plant engineers and managers who were involved in an on-site demonstration of EETech solid-state ballasts for two 40-watt T12 fluorescent lamps. The report includes a brief review of the operating principles of solid-state fluorescent ballasts and the status of development achieved during the LBL program. The remainder of the test describes the techniques of managing and instrumenting a test area for assessing the performance of solid-state fluorescent ballasts at an occupied site.

Verderber, R.; Morse, O.

1980-09-01T23:59:59.000Z

29

IBECS network/ballast interface: Final report  

SciTech Connect (OSTI)

This report describes the work performed to design, develop, and demonstrate an IBECS network/ballast interface that is useful for economically dimming controllable ballasts in commercial buildings. The first section of the report provides the general background of the IBECS (Integrated Building Environmental Communications System) research and development work as well as the context for the development of the network/ballast interface. The research and development effort that went into producing the first proof-of-concept circuit and the physical prototype of that concept is detailed in the second section. In the third section of the report, we describe the lessons learned from the first demonstration of the network/ballast interface at an office at LBNL. The fourth section describes how electrical noise interference encountered with the first generation of interface led to design changes for a refined prototype that hardened the interface from electrical noise generated by the ballast. The final section of the report discusses the performance of refined prototype after we replaced the proof-of-concept prototype with the refined prototypes in the demonstration office at LBNL.

Rubinstein, Francis; Pettler, Pete

2001-11-15T23:59:59.000Z

30

Energy-efficient compact screw-in fluorescent lamp. Final report  

SciTech Connect (OSTI)

A compact fluorescent lamp has been designed and constructed which can replace an incandescent lamp. The lamp is slightly larger than a standard lamp (8 3/4 in. x 3 1/4 in.), but is designed to fit a majority of portable lamp applications. This version, with a core-coil ballast, results in a system efficacy of 54 lumens per watt, with a light output of more than 1800 lumens. This compares favorably with a 100-watt incandescent (17.5 lumens per watt and 1750 lumens light output). The color temperature of 3000/sup 0/K is compatible with an incandescent lamp (2800/sup 0/K). The color rendition index (CRI) is 84. With a solid-state ballast, the efficacy and light output could be increased by 20% (65 l/w, 2200 lumens) and could provide a direct replacement for a three-way, 150-watt incandescent lamp (15 l/w, 2200 lumens).

Morton, E.W.

1982-11-01T23:59:59.000Z

31

Ballasts: Handling, Storage and Procedure: 8.40 Created: 07/01/2009  

E-Print Network [OSTI]

of industrial compounds produced by chlorination of biphenyl, noted primarily as an environmental pollutant applies to all Contractors, Project Managers, Facilities Operations and Environmental Health & Safety (EH-lamping activities and construction/renovation activities at Columbia University. Ballasts manufactured before 1978

Jia, Songtao

32

Power factor and harmonic distortion characteristics of energy efficient lamps  

SciTech Connect (OSTI)

This paper evaluates the performance of a new class of lamps which are generally classified as the energy-saving lamps. It is shown that, when compared with the incandescent lamps, these lamps indeed consume less real power and have higher relative illumination. However, the energy-saving lamps operate at a low power factor and produce current distortion which are much higher than the distortion produced by the traditional incandescent lamps.

Etezadi-Amoli, M.; Florence, T.

1989-07-01T23:59:59.000Z

33

Oregon Ballast Water Task Force Report on Ballast Water Management in Oregon  

E-Print Network [OSTI]

Oregon Ballast Water Task Force Report on Ballast Water Management in Oregon #12;Oregon Ballast Water Task Force Report on Ballast Water Management in Oregon Prepared for the Oregon State Legislature October 2006 #12;Report on Ballast Water Management in Oregon-2006 Acknowledgements We would like to thank

34

Energy and Economic Impacts of U.S. Federal Energy and Water Conservation Standards Adopted From 1987 Through 2010  

E-Print Network [OSTI]

Fluorescent Lamps and Incandescent Reflector Lamps MediumBallasts and Fixtures General Service Incandescent Lamps,Intermediate Base Incandescent Lamps and Candelabra Base

Meyers, Stephen

2013-01-01T23:59:59.000Z

35

Aperture lamp  

DOE Patents [OSTI]

A discharge lamp includes means for containing a light emitting fill, the fill being capable of absorbing light at one wavelength and re-emitting the light at a different wavelength, the light emitted from the fill having a first spectral power distribution in the absence of reflection of light back into the fill; means for exciting the fill to cause the fill to emit light; and means for reflecting some of the light emitted by the fill back into the fill while allowing some light to exit, the exiting light having a second spectral power distribution with proportionately more light in the visible region as compared to the first spectral power distribution, wherein the light re-emitted by the fill is shifted in wavelength with respect to the absorbed light and the magnitude of the shift is in relation to an effective optical path length. Another discharge lamp includes an envelope; a fill which emits light when excited disposed in the envelope; a source of excitation power coupled to the fill to excite the fill and cause the fill to emit light; and a reflective ceramic structure disposed around the envelope and defining an light emitting opening, wherein the structure comprises a sintered body built up directly on the envelope and made from a combination of alumina and silica.

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

2003-01-01T23:59:59.000Z

36

LED lamp  

DOE Patents [OSTI]

There is herein described a lamp for providing white light comprising a plurality of light sources positioned on a substrate. Each of said light sources comprises a blue light emitting diode (LED) and a dome that substantially covers said LED. A first portion of said blue light from said LEDs is transmitted through said domes and a second portion of said blue light is converted into a red light by a first phosphor contained in said domes. A cover is disposed over all of said light sources that transmits at least a portion of said red and blue light emitted by said light sources. The cover contains a second phosphor that emits a yellow light in response to said blue light. The red, blue and yellow light combining to form the white light and the white light having a color rendering index (CRI) of at least about 80.

Galvez, Miguel; Grossman, Kenneth; Betts, David

2013-11-12T23:59:59.000Z

37

DuraLamp USA: Proposed Penalty (2010-CE-0912)  

Broader source: Energy.gov [DOE]

DOE alleged in a Notice of Proposed Civil Penalty that DuraLamp USA, Inc. failed to certify a variety of general service fluorescent lamps as compliant with the applicable energy conservation standards.

38

Covered Product Category: Fluorescent Ballasts  

Broader source: Energy.gov [DOE]

FEMP provides acquisition guidance and Federal efficiency requirements across a variety of product categories, including fluorescent ballasts, which are a FEMP-designated product category. Federal laws and requirements mandate that agencies meet these efficiency requirements in all procurement and acquisition actions that are not specifically exempted by law.

39

Max Tech and Beyond: Fluorescent Lamps  

SciTech Connect (OSTI)

Fluorescent lamps are the most widely used artificial light source today, responsible for approximately 70% of the lumens delivered to our living spaces globally. The technology was originally commercialized in the 1930's, and manufacturers have been steadily improving the efficacy of these lamps over the years through modifications to the phosphors, cathodes, fill-gas, operating frequency, tube diameter and other design attributes. The most efficient commercially available fluorescent lamp is the 25 Watt T5 lamp. This lamp operates at 114-116 lumens per watt while also providing good color rendering and more than 20,000 hours of operating life. Industry experts interviewed indicated that while this lamp is the most efficient in the market today, there is still a further 10 to 14% of potential improvements that may be introduced to the market over the next 2 to 5 years. These improvements include further developments in phosphors, fill-gas, cathode coatings and ultraviolet (UV) reflective glass coatings. The commercialization of these technology improvements will combine to bring about efficacy improvements that will push the technology up to a maximum 125 to 130 lumens per watt. One critical issue raised by researchers that may present a barrier to the realization of these improvements is the fact that technology investment in fluorescent lamps is being reduced in order to prioritize research into light emitting diodes (LEDs) and ceramic metal halide high intensity discharge (HID) lamps. Thus, it is uncertain whether these potential efficacy improvements will be developed, patented and commercialized. The emphasis for premium efficacy will continue to focus on T5 lamps, which are expected to continue to be marketed along with the T8 lamp. Industry experts highlighted the fact that an advantage of the T5 lamp is the fact that it is 40% smaller and yet provides an equivalent lumen output to that of a T8 or T12 lamp. Due to its smaller form factor, the T5 lamp contains less material (i.e., glass, fill gas and phosphor), and has a higher luminance, enabling fixtures to take advantage of the smaller lamp size to improve the optics and provide more efficient overall system illuminance. In addition to offering the market a high-quality efficacious light source, another strong value proposition of fluorescent lighting is its long operating life. In today's market, one manufacturer is offering fluorescent lamps that have a rated life of 79,000 hours - which represents 18 years of service at 12 hours per day, 365 days per year. These lamps, operated using a long-life ballast specified by the manufacturer, take advantage of improvements in cathode coatings, fill gas chemistry and pressure to extend service life by a factor of four over conventional fluorescent lamps. It should be noted that this service life is also longer (approximately twice as long) as today's high-quality LED products. The fluorescent market is currently focused on the T5 and T8 lamp diameters, and it is not expected that other diameters would be introduced. Although T8 is a more optimal diameter from an efficacy perspective, the premium efficiency and optimization effort has been focused on T5 lamps because they are 40% smaller than T8, and are designed to operate at a higher temperature using high-frequency electronic ballasts. The T5 lamp offers savings in terms of materials, packaging and shipping, as well as smaller fixtures with improved optical performance. Manufacturers are actively researching improvements in four critical areas that are expected to yield additional efficacy improvements of approximately 10 to 14 percent over the next five years, ultimately achieving approximately 130 lumens per watt by 2015. The active areas of research where these improvements are anticipated include: (1) Improved phosphors which continue to be developed and patented, enabling higher efficacies as well as better color rendering and lumen maintenance; (2) Enhanced fill gas - adjusting proportions of argon, krypton, neon and xenon to optimize performance, while also m

Scholand, Michael

2012-04-01T23:59:59.000Z

40

Ballasted photovoltaic module and module arrays  

DOE Patents [OSTI]

A photovoltaic (PV) module assembly including a PV module and a ballast tray. The PV module includes a PV device and a frame. A PV laminate is assembled to the frame, and the frame includes an arm. The ballast tray is adapted for containing ballast and is removably associated with the PV module in a ballasting state where the tray is vertically under the PV laminate and vertically over the arm to impede overt displacement of the PV module. The PV module assembly can be installed to a flat commercial rooftop, with the PV module and the ballast tray both resting upon the rooftop. In some embodiments, the ballasting state includes corresponding surfaces of the arm and the tray being spaced from one another under normal (low or no wind) conditions, such that the frame is not continuously subjected to a weight of the tray.

Botkin, Jonathan (El Cerrito, CA); Graves, Simon (Berkeley, CA); Danning, Matt (Oakland, CA)

2011-11-29T23:59:59.000Z

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


41

EFFECT OF COAL DUST ONEFFECT OF COAL DUST ON RAILROAD BALLAST STRENGTHRAILROAD BALLAST STRENGTH  

E-Print Network [OSTI]

Triaxial TestsTests Direct Shear TestsDirect Shear Tests Clean and Coal Dust Fouled Ballast BehaviorClean1 EFFECT OF COAL DUST ONEFFECT OF COAL DUST ON RAILROAD BALLAST STRENGTHRAILROAD BALLAST STRENGTH for Laboratory StudyFouling Mechanism / Need for Laboratory Study Mechanical Properties of Coal Dust

Barkan, Christopher P.L.

42

Report on the Oregon Ballast Water Management Program in 2004  

E-Print Network [OSTI]

Report on the Oregon Ballast Water Management Program in 2004 #12;Acknowledgements We would like Ballast Water Management Program in 2004 Produced for the Oregon State Legislature By The Oregon Ballast State University September 2004 #12;Report on Oregon Ballast Water Management Program 2004 Executive

43

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

E-Print Network [OSTI]

change in the output power for the solid state ballast asof the solid state ballast's constant output power withswitching power supplies such as the solid state ballast.

Ailing, W.R.

2013-01-01T23:59:59.000Z

44

Jacketed lamp bulb envelope  

DOE Patents [OSTI]

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.

MacLennan, Donald A. (Gaithersburg, MD); Turner, Brian P. (Damascus, MD); Gitsevich, Aleksandr (Gaithersburg, MD); Bass, Gary K. (Mt. Airy, MD); Dolan, James T. (Frederick, MD); Kipling, Kent (Gaithersburg, MD); Kirkpatrick, Douglas A. (Great Falls, VA); Leng, Yongzhang (Damascus, MD); Levin, Izrail (Silver Spring, MD); Roy, Robert J. (Frederick, MD); Shanks, Bruce (Gaithersburg, MD); Smith, Malcolm (Alexandria, VA); Trimble, William C. (Columbia, MD); Tsai, Peter (Olney, MD)

2001-01-01T23:59:59.000Z

45

Fluorescent Tube Lamps  

Broader source: Energy.gov [DOE]

FEMP temporarily suspended its energy efficiency requirements for fluorescent tube lamps as it evaluates the market impact of the pending 2012 minimum efficiency standards for fluorescent lamps. The program will issue updated energy efficiency requirements when the market distribution of this product category stabilizes and when doing so has the potential to result in significant Federal energy savings.

46

Turning on LAMP  

SciTech Connect (OSTI)

Christoph Bostedt, a senior staff scientist at SLAC's Linac Coherent Light Source X-ray laser, provides a sneak peek of a powerful new instrument, called LAMP, that is now available for experiments that probe the atomic and molecular realm. LAMP replaces and updates the first instrument at LCLS, dubbed CAMP, which will be installed at an X-ray laser in Germany.

Bostedt, Christoph

2014-06-30T23:59:59.000Z

47

Turning on LAMP  

ScienceCinema (OSTI)

Christoph Bostedt, a senior staff scientist at SLAC's Linac Coherent Light Source X-ray laser, provides a sneak peek of a powerful new instrument, called LAMP, that is now available for experiments that probe the atomic and molecular realm. LAMP replaces and updates the first instrument at LCLS, dubbed CAMP, which will be installed at an X-ray laser in Germany.

Bostedt, Christoph

2014-07-16T23:59:59.000Z

48

Magnetic fluorescent lamp  

DOE Patents [OSTI]

The radiant emission of a mercury-argon discharge in a fluorescent lamp assembly is enhanced by providing means for establishing a magnetic field with lines of force along the path of electron flow through the bulb of the lamp assembly, to provide Zeeman splitting of the ultraviolet spectral line. Optimum results are obtained when the magnetic field strength causes a Zeeman splitting of approximately 1.7 times the thermal line width.

Berman, S.M.; Richardson R.W.

1983-12-29T23:59:59.000Z

49

High frequency inductive lamp and power oscillator  

DOE Patents [OSTI]

A high frequency inductively coupled electrodeless lamp includes an excitation coil with an effective electrical length which is less than one half wavelength of a driving frequency applied thereto, preferably much less. The driving frequency may be greater than 100 MHz and is preferably as high as 915 MHz. Preferably, the excitation coil is configured as a non-helical, semi-cylindrical conductive surface having less than one turn, in the general shape of a wedding ring. At high frequencies, the current in the coil forms two loops which are spaced apart and parallel to each other. Configured appropriately, the coil approximates a Helmholtz configuration. The lamp preferably utilizes an bulb encased in a reflective ceramic cup with a pre-formed aperture defined therethrough. The ceramic cup may include structural features to aid in alignment and/or a flanged face to aid in thermal management. The lamp head is preferably an integrated lamp head comprising a metal matrix composite surrounding an insulating ceramic with the excitation integrally formed on the ceramic. A novel solid-state oscillator preferably provides RF power to the lamp. The oscillator is a single active element device capable of providing over 70 watts of power at over 70% efficiency. Various control circuits may be employed to match the driving frequency of the oscillator to a plurality of tuning states of the lamp.

MacLennan, Donald A. (Gaithersburg, MD); Turner, Brian P. (Damascus, MD); Dolan, James T. (Frederick, MD); Kirkpatrick, Douglas A. (Great Falls, VA); Leng, Yongzhang (Damascus, MD)

2000-01-01T23:59:59.000Z

50

Fluorescent lamp unit with magnetic field generating means  

DOE Patents [OSTI]

A fluorescent lamp unit having a magnetic field generating means for improving the performance of the fluorescent lamp is disclosed. In a preferred embodiment the fluorescent lamp comprises four longitudinally extending leg portions disposed in substantially quadrangular columnar array and joined by three generally U-shaped portions disposed in different planes. In another embodiment of the invention the magnetic field generating means comprises a plurality of permanent magnets secured together to form a single columnar structure disposed within a centrally located region defined by the shape of lamp envelope. 4 figs.

Grossman, M.W.; George, W.A.

1989-08-08T23:59:59.000Z

51

Energy-efficient incandescent lamp: Final report  

E-Print Network [OSTI]

of Energy Conserving Incandescent Lamps", J . Brett, R.July 1981. "Filaments for Incandescent Lamps with Radiation20-22 "Energy Saving Incandescent Lamps with Infrared

Verderber, R.

2010-01-01T23:59:59.000Z

52

Permeability, Resistivity and Strength of Fouled Railroad Ballast  

E-Print Network [OSTI]

particles between the ballast particles; therefore, permeability and resistivity were also correlated. The strength properties of clean and fouled ballast were also evaluated using large direct shear box and modified direct shear box (extension in height...

Rahman, A. J.

2013-08-31T23:59:59.000Z

53

Report on the Oregon Ballast Water Management Program  

E-Print Network [OSTI]

Report on the Oregon Ballast Water Management Program in 2002 #12;Report on the Oregon Ballast Water Management Program in 2002 Produced for the Oregon State Legislature by Jordan Vinograd and Mark Water Task Force December 2002 #12;Report on Oregon Ballast Water Management Program in 2002 i Executive

54

High frequency inductive lamp and power oscillator  

DOE Patents [OSTI]

A high frequency inductively coupled electrodeless lamp includes an excitation coil with an effective electrical length which is less than one half wavelength of a driving frequency applied thereto, preferably much less. The driving frequency may be greater than 100 MHz and is preferably as high as 915 MHz. Preferably, the excitation coil is configured as a non-helical, semi-cylindrical conductive surface having less than one turn, in the general shape of a wedding ring. At high frequencies, the current in the coil forms two loops which are spaced apart and parallel to each other. Configured appropriately, the coil approximates a Helmholtz configuration. The lamp preferably utilizes an bulb encased in a reflective ceramic cup with a pre-formed aperture defined therethrough. The ceramic cup may include structural features to aid in alignment and I or a flanged face to aid in thermal management. The lamp head is preferably an integrated lamp head comprising a metal matrix composite surrounding an insulating ceramic with the excitation integrally formed on the ceramic. A novel solid-state oscillator preferably provides RF power to the lamp. The oscillator is a single active element device capable of providing over 70 watts of power at over 70% efficiency. Various control circuits may be employed to adjust the driving frequency of the oscillator.

MacLennan, Donald A. (Gaithersburg, MD); Dymond, Jr., Lauren E. (North Potomac, MD); Gitsevich, Aleksandr (Montgomery Village, MD); Grimm, William G. (Silver Spring, MD); Kipling, Kent (Gaithersburg, MD); Kirkpatrick, Douglas A. (Great Falls, VA); Ola, Samuel A. (Silver Spring, MD); Simpson, James E. (Gaithersburg, MD); Trimble, William C. (Columbia, MD); Tsai, Peter (Olney, MD); Turner, Brian P. (Damascus, MD)

2001-01-01T23:59:59.000Z

55

Realized and Projected Impacts of U.S. Energy Efficiency Standards for Residential and Commercial Appliances  

E-Print Network [OSTI]

that ballast wattage would track ballast/lamp type accordingaverage wattage for each ballast type and number of lamps

Meyers, Stephen P.

2008-01-01T23:59:59.000Z

56

ON-SITE DEMONSTRATION PROCEDURE FOR SOLID-STATE FLUORESCENT BALLAST  

E-Print Network [OSTI]

the solid-state ballast supplies electrical power to theof switching power transistors that are essential for solid-solid-state ballast can transform the input electrical power

Verderber, Rudy

2013-01-01T23:59:59.000Z

57

High brightness microwave lamp  

DOE Patents [OSTI]

An electrodeless microwave discharge lamp includes a source of microwave energy, a microwave cavity, a structure configured to transmit the microwave energy from the source to the microwave cavity, a bulb disposed within the microwave cavity, the bulb including a discharge forming fill which emits light when excited by the microwave energy, and a reflector disposed within the microwave cavity, wherein the reflector defines a reflective cavity which encompasses the bulb within its volume and has an inside surface area which is sufficiently less than an inside surface area of the microwave cavity. A portion of the reflector may define a light emitting aperture which extends from a position closely spaced to the bulb to a light transmissive end of the microwave cavity. Preferably, at least a portion of the reflector is spaced from a wall of the microwave cavity. The lamp may be substantially sealed from environmental contamination. The cavity may include a dielectric material is a sufficient amount to require a reduction in the size of the cavity to support the desired resonant mode.

Kirkpatrick, Douglas A.; Dolan, James T.; MacLennan, Donald A.; Turner, Brian P.; Simpson, James E.

2003-09-09T23:59:59.000Z

58

Inductive tuners for microwave driven discharge lamps  

DOE Patents [OSTI]

An RF powered electrodeless lamp utilizing an inductive tuner in the waveguide which couples the RF power to the lamp cavity, for reducing reflected RF power and causing the lamp to operate efficiently.

Simpson, James E. (Gaithersburg, MD)

1999-01-01T23:59:59.000Z

59

Application Summary Report 22: LED MR16 Lamps  

SciTech Connect (OSTI)

This report analyzes the independently tested photometric performance of 27 LED MR16 lamps. It describes initial performance based on light output, efficacy, distribution, color quality, electrical characteristics, and form factor, with comparisons to a selection of benchmark halogen MR16s and ENERGY STAR qualification thresholds. Three types of products were targeted. First, CALiPER sought 3000 K lamps with the highest rated lumen output (i.e., at least 500 lm) or a claim of equivalency to a 50 W halogen MR16 or higher. The test results indicate that while the initial performance of LED MR16s has improved across the board, market-available products still do not produce the lumen output and center beam intensity of typical 50 W halogen MR16 lamps. In fact, most of the 18 lamps in this category had lower lumen output and center beam intensity than a typical 35 W halogen MR16 lamp. Second, CALiPER sought lamps with a CRI of 90 or greater. Only four manufacturers were identified with a product in this category. CALiPER testing confirmed the performance of these lamps, which are a good option for applications where high color fidelity is needed. A vast majority of the LED MR16 lamps have a CRI in the low 80s; this is generally acceptable for ambient lighting, but may not always be acceptable for focal lighting. For typical LED packages, there is a fundamental tradeoff between CRI and efficacy, but the lamps in the high-CRI group in this report still offer comparable performance to the rest of the Series 22 products in other performance areas. Finally, CALiPER sought lamps with a narrow distribution, denoted as a beam angle less than 15°. Five such lamps were purchased. Notably, no lamp was identified as having high lumen output (500 lumens or greater), high CRI (90 or greater), a narrow distribution (15° or less), and an efficacy greater than 60 lm/W. This would be an important achievement for LED MR16s especially if output could reach approximately 700 800 lumens, or the approximate equivalent of a 50 W halogen MR16 lamp. Many factors beyond photometric performance should be considered during specification. For example, performance over time, transformer and dimmer compatibility, and total system performance are all critical to a successful installation. Subsequent CALiPER reports will investigate more complex issues.

Royer, Michael P.

2014-07-23T23:59:59.000Z

60

A projective LED dental lamp design.  

E-Print Network [OSTI]

??Halogen lamps are mostly applied as a light source to the traditional lamp for medical treatment due to its proper color temperature, but it has… (more)

Chung, Yu-Lin

2011-01-01T23:59:59.000Z

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


61

Max Tech and Beyond: Fluorescent Lamps  

E-Print Network [OSTI]

Fluorescent Lamps and Incandescent Reflector Lamps; Finalmany end- use applications. Incandescent Outdoor Stationaryof color compared with the incandescent reference source is

Scholand, Michael

2012-01-01T23:59:59.000Z

62

Fully Integrated Ballast Controller with  

E-Print Network [OSTI]

for This work is co-sponsored by the National Science Foundation (under Grant No. 0348772), General Electric Colorado Power Electronics Center University of Colorado at Boulder Boulder, CO 80309-0425 regan Global Research (through CoPEC) and the Department of Energy's National Energy Technology Laboratory

63

Computational Modeling of Ballast Tanks to Improve Understanding and Maximize Effectiveness of Management Practices and Treatment  

E-Print Network [OSTI]

Computational Modeling of Ballast Tanks to Improve Understanding and Maximize Effectiveness tanks exchange coastal ballast water with mid-ocean seawater (referred to as "ballast water exchange of high-resolution computational fluid dynamics (CFD) to model ballast tank water flow and to predict EE

64

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

Energy Savers [EERE]

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

65

2014-04-11 Issuance: Energy Conservation Standards for General...  

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

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

66

High pressure neon arc lamp  

DOE Patents [OSTI]

A high pressure neon arc lamp and method of using the same for photodynamic therapies is provided. The high pressure neon arc lamp includes a housing that encloses a quantity of neon gas pressurized to about 500 Torr to about 22,000 Torr. At each end of the housing the lamp is connected by electrodes and wires to a pulse generator. The pulse generator generates an initial pulse voltage to breakdown the impedance of the neon gas. Then the pulse generator delivers a current through the neon gas to create an electrical arc that emits light having wavelengths from about 620 nanometers to about 645 nanometers. A method for activating a photosensitizer is provided. Initially, a photosensitizer is administered to a patient and allowed time to be absorbed into target cells. Then the high pressure neon arc lamp is used to illuminate the target cells with red light having wavelengths from about 620 nanometers to about 645 nanometers. The red light activates the photosensitizers to start a chain reaction that may involve oxygen free radicals to destroy the target cells. In this manner, a high pressure neon arc lamp that is inexpensive and efficiently generates red light useful in photodynamic therapy is provided.

Sze, Robert C.; Bigio, Irving J.

2003-07-15T23:59:59.000Z

67

Health Implications of New Lamp Technology Progress with Lamp Safety  

E-Print Network [OSTI]

: ­ ACGIH Threshold Limit Values, UV, lasers, etc. ­ ANSI Z136.1 for lasers with MPEs 0.1 ps -30 ks ­ ANSI RP 27.1 to ANSI RP 27.3 Lamp Safety · Internationally: ­ International Commission on Non

California at Davis, University of

68

Capacitive sensing with a fluorescent lamp  

E-Print Network [OSTI]

This work presents a modified fluorescent lamp that can be used as a capacitive sensing system. The lamp sensor measures changes in the electric fields emitted from the fluorescent bulbs in order to deduce the presence and ...

Cooley, John Jacob

2007-01-01T23:59:59.000Z

69

Comparison lamps automation CTIO 60 inches Echelle  

E-Print Network [OSTI]

Comparison lamps automation CTIO 60 inches Echelle ECH60S5.1 La Serena, December 09, 2009 #12)...............................................................................12 CTIO 60 inches Echelle / Comparison lamps automation, ECH60S5.1 2 #12;Introduction The present document is just a brief summary of the work done automating the 60 inches echelle comparison lamps

Tokovinin, Andrei A.

70

Comparison lamps automation CTIO 60 inches CHIRON  

E-Print Network [OSTI]

Comparison lamps automation CTIO 60 inches CHIRON CHI60HF5.2 La Serena, March 16, 2011 #12;Table)...............................................................................12 CTIO 60 inches Chiron / Comparison lamps automation, CHI60HF5.2 2 #12;Introduction The present document is just a brief summary of the work done automating the 60 inches chiron comparison lamps

Tokovinin, Andrei A.

71

Lightweight, self-ballasting photovoltaic roofing assembly  

DOE Patents [OSTI]

A photovoltaic roofing assembly comprises a roofing membrane (102), a plurality of photovoltaic modules (104, 106, 108) disposed as a layer on top of the roofing membrane (102), and a plurality of pre-formed spacers, pedestals or supports (112, 114, 116, 118, 120, 122) which are respectively disposed below the plurality of photovoltaic modules (104, 106, 108) and integral therewith, or fixed thereto. Spacers (112, 114, 116, 118, 120, 122) are disposed on top of roofing membrane (102). Membrane (102) is supported on conventional roof framing, and attached thereto by conventional methods. In an alternative embodiment, the roofing assembly may have insulation block (322) below the spacers (314, 314', 315, 315'). The geometry of the preformed spacers (112, 114, 116, 118, 120, 122, 314, 314', 315, 315') is such that wind tunnel testing has shown its maximum effectiveness in reducing net forces of wind uplift on the overall assembly. Such construction results in a simple, lightweight, self-ballasting, readily assembled roofing assembly which resists the forces of wind uplift using no roofing penetrations.

Dinwoodie, Thomas L. (Berkeley, CA)

1998-01-01T23:59:59.000Z

72

Lightweight, self-ballasting photovoltaic roofing assembly  

DOE Patents [OSTI]

A photovoltaic roofing assembly comprises a roofing membrane (102), a plurality of photovoltaic modules (104, 106, 108) disposed as a layer on top of the roofing membrane (102), and a plurality of pre-formed spacers, pedestals or supports (112, 114, 116, 118, 120, 122) which are respectively disposed below the plurality of photovoltaic modules (104, 106, 108) and integral therewith, or fixed thereto. Spacers (112, 114, 116, 118, 120, 122) are disposed on top of roofing membrane (102). Membrane (102) is supported on conventional roof framing, and attached thereto by conventional methods. In an alternative embodiment, the roofing assembly may have insulation block (322) below the spacers (314, 314', 315, 315'). The geometry of the preformed spacers (112, 114, 116, 118, 120, 122, 314, 314', 315, 315') is such that wind tunnel testing has shown its maximum effectiveness in reducing net forces of wind uplift on the overall assembly. Such construction results in a simple, lightweight, self-ballasting, readily assembled roofing assembly which resists the forces of wind uplift using no roofing penetrations.

Dinwoodie, T.L.

1998-05-05T23:59:59.000Z

73

Lightweight, self-ballasting photovoltaic roofing assembly  

DOE Patents [OSTI]

A photovoltaic roofing assembly comprises a roofing membrane (102), a plurality of photovoltaic modules (104, 106, 108) disposed as a layer on top of the roofing membrane (102), and a plurality of pre-formed spacers, pedestals or supports (112, 114, 116, 118, 120, 122) which are respectively disposed below the plurality of photovoltaic modules (104, 106, 108) and integral therewith, or fixed thereto. Spacers (112, 114, 116, 118, 120, 122) are disposed on top of roofing membrane (102). Membrane (102) is supported on conventional roof framing, and attached thereto by conventional methods. In an alternative embodiment, the roofing assembly may have insulation block (322) below the spacers (314, 314', 315, 315'). The geometry of the pre-formed spacers (112, 114, 116, 118, 120, 122, 314, 314', 315, 315') is such that wind tunnel testing has shown its maximum effectiveness in reducing net forces of wind uplift on the overall assembly. Such construction results in a simple, lightweight, self-ballasting, readily assembled roofing assembly which resists the forces of wind uplift using no roofing penetrations.

Dinwoodie, Thomas L.

2006-02-28T23:59:59.000Z

74

LED Linear Lamps and Troffer Lighting  

Broader source: Energy.gov [DOE]

The CALiPER program performed a series of investigations on linear LED lamps. Each report in the series covers the performance of up to 31 linear LED lamps, which were purchased in late 2012 or 2013. The first report focuses on bare lamp performance of LED T8 replacement lamps and subsequent reports examine performance in various troffers, as well as cost-effectiveness. There is also a concise guidance document that describes the findings of the Series 21 studies and provides practical advice to manufacturers, specifiers, and consumers (Report 21.4: Summary of Linear (T8) LED Lamp Testing , 5 pages, June 2014).

75

Biomass-Derived Hydrogen from a Thermally Ballasted Gasifier  

SciTech Connect (OSTI)

The goal of this project is to develop an indirectly heated gasification system that converts switchgrass into hydrogen-rich gas suitable for powering fuel cells. The project includes investigations of the indirectly-heated gasifier, development of particulate removal equipment, evaluation of catalytic methods for upgrading producer gas, development of contaminant measurement and control techniques, modeling of the thermal performance of the ballasted gasifier, and estimation of the cost of hydrogen from the proposed gasification system. Specific technologies investigated include a thermally ballasted gasifier, a moving bed granular filter, and catalytic reactors for steam reforming and water-gas shift reaction. The approach to this project was to employ a pilot-scale (5 ton per day) gasifier to evaluate the thermally ballasted gasifier as a means for producing hydrogen from switchgrass. A slipstream from the gasifier was used to evaluate gas cleaning and upgrading options. Other tests were conducted with laboratory-scale equipment using simulated producer gas. The ballasted gasifier operated in conjunction with a steam reformer and two-stage water-gas shift reactor produced gas streams containing 54.5 vol-% H2. If purge gas to the feeder system could be substantially eliminated, hydrogen concentration would reach 61 vol-%, which closely approaches the theoretical maximum of 66 vol-%. Tests with a combined catalyst/sorbent system demonstrated that steam reforming and water-gas shift reaction could be substantially performed in a single reactor and achieve hydrogen concentrations exceeding 90 vol-%. Cold flow trials with a laboratory-scale moving bed granular filter achieved particle removal efficiencies exceeding 99%. Two metal-based sorbents were tested for their ability to remove H2S from biomass-derived producer gas. The ZnO sorbent, tested at 450? C, was effective in reducing H2S from 200 ppm to less than 2 ppm (>99% reduction) while tests with the MnO sorbent were inconclusive. A computer model was developed that successfully predicted the thermal performance of the ballasted gasifier. An economic comparison of an air-blown gasification plant and a ballasted gasifier plant found that operating costs for ballasted gasification plant are about 31% higher than for the air blown gasifier plant. Hydrogen from the ballasted gasification plant and air blown gasification plant are projected to be $2.43/kg and $1.85/kg, respectively. This is lower than U.S. DOE’s 2010 target price of $2.90/kg and comparable to U.S. DOE’s 2015 target price of $2.00/kg.

Robert C. Brown

2007-04-06T23:59:59.000Z

76

Biomass-Derived Hydrogen from a Thermally Ballasted Gasifier  

E-Print Network [OSTI]

Biomass-Derived Hydrogen from a Thermally Ballasted Gasifier DOE Hydrogen Program Contractors biomass #12;Approach Outline Gasifier Pilot Plant· Develop subsystems for the hydrogen production system and pyrolysis occur simultaneously in a single reactor · Exothermic combustion provides heat · Endothermic

77

LED Replacements for Linear Fluorescent Lamps Webcast  

Broader source: Energy.gov [DOE]

In this June 20, 2011 webcast on LED products marketed as replacements for linear fluorescent lamps, Jason Tuenge of the Pacific Northwest National Laboratory (PNNL) discussed current Lighting...

78

Covered Product Category: Compact Fluorescent Lamps  

Broader source: Energy.gov [DOE]

FEMP provides acquisition guidance across a variety of product categories, including compact fluorescent lamps (CFLs), which are an ENERGY STAR-qualified product category.

79

Lamp bulb with integral reflector  

DOE Patents [OSTI]

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

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

2001-01-01T23:59:59.000Z

80

Discharge lamp with reflective jacket  

DOE Patents [OSTI]

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

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

2001-01-01T23:59:59.000Z

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


81

DuraLamp USA: Order (2010-CE-0912)  

Broader source: Energy.gov [DOE]

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

82

COST EFFECTIVENESS OF LONG LIFE INCANDESCENT LAMPS AND ENERGY BUTTONS  

E-Print Network [OSTI]

as any 1ong-li incandescent lamp or system evaluated in thisEFFECTIVENESS OF LONG LIFE INCANDESCENT LAMPS AND ENERGYEFFECTIVENESS OF LONG LIFE INCANDESCENT LAMPS AND ENERGY

Verderber, Rudy

2013-01-01T23:59:59.000Z

83

CALiPER Report 21.3: Cost-Effectiveness of Linear (T8) LED Lamps  

SciTech Connect (OSTI)

Meeting performance expectations is important for driving adoption of linear LED lamps, but cost-effectiveness may be an overriding factor in many cases. Linear LED lamps cost more initially than fluorescent lamps, but energy and maintenance savings may mean that the life-cycle cost is lower. This report details a series of life-cycle cost simulations that compared a two-lamp troffer using LED lamps (38 W total power draw) or fluorescent lamps (51 W total power draw) over a 10-year study period. Variables included LED system cost ($40, $80, or $120), annual operating hours (2,000 hours or 4,000 hours), LED installation time (15 minutes or 30 minutes), and melded electricity rate ($0.06/kWh, $0.12/kWh, $0.18/kWh, or $0.24/kWh). A full factorial of simulations allows users to interpolate between these values to aid in making rough estimates of economic feasibility for their own projects. In general, while their initial cost premium remains high, linear LED lamps are more likely to be cost-effective when electric utility rates are higher than average and hours of operation are long, and if their installation time is shorter.

Miller, Naomi J.; Perrin, Tess E.; Royer, Michael P.

2014-05-27T23:59:59.000Z

84

Portable lamp with dynamically controlled lighting distribution  

DOE Patents [OSTI]

A double lamp table or floor lamp lighting system has a pair of compact fluorescent lamps (CFLs) arranged vertically with a reflective septum in between. By selectively turning on one or both of the CFLs, down lighting, up lighting, or both up and down lighting is produced. The control system can also vary the light intensity from each CFL. The reflective septum insures that almost all the light produced by each lamp will be directed into the desired light distribution pattern which is selected and easily changed by the user. Planar compact fluorescent lamps, e.g. circular CFLs, particularly oriented horizontally, are preferable. CFLs provide energy efficiency. The lighting system may be designed for the home, hospitality, office or other environments.

Siminovitch, Michael J. (Pinole, CA); Page, Erik R. (Berkeley, CA)

2001-01-01T23:59:59.000Z

85

Driver Circuit for White LED Lamps with TRIAC Dimming Control.  

E-Print Network [OSTI]

??An efficient Light Emitting Diode (LED) lamp driver circuit is proposed for retrofitting the conventionally used incandescent lamps with existing TRIAC dimmer. The dimming feature… (more)

Weng, Szu-Jung

2012-01-01T23:59:59.000Z

86

Tungsten wire for incandescent lamps  

SciTech Connect (OSTI)

Tungsten wire for incandescent lamp filaments must operate at high temperatures and for long times. To meet these requirements, the grain morphology of the wire must be controlled to reduce the propensity for grain boundary sliding. The morphology is a function of the distribution of very small pockets of potassium in the wire and the mechanical processing from ingot to wire. The behavior of the filament is directly related to the grain morphology. This paper describes the mechanism by which the potassium is incorporated into and distributed in the ingot. The elongation and spheroidization of the bubbles during hot rolling and swaging is also examined and related to the grain morphology of wire. Some indications of the relationship between grain morphology and filament behavior are also given.

Walter, J.L.; Briant, C.L. (General Electric Corporate Research and Development, Schenectady, NY (USA))

1990-09-01T23:59:59.000Z

87

The provenance of the stone ballast from the Molasses Reef Wreck  

E-Print Network [OSTI]

would limit the sources for ballast to the Old World and the Caribbean Basin of the New World. 5econd, the bailast was sampled systematically in the field which decreased the level of bias in the data collection. Third, the overall diversity... ballast Iithologfes with source locations, particularly when metamorphic and igneous rocks are under study. Paleontology is instrumental for provenance correlations of sedimentary lithologies. Fossils found in ballast stones can give geological dates...

Lamb, William Reginald

1988-01-01T23:59:59.000Z

88

Cost effectiveness of long life incandescent lamps and energy buttons  

SciTech Connect (OSTI)

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

Verderber, R.; Morse, O.

1980-04-07T23:59:59.000Z

89

Analysis and design of an electronic ballast for fluorescent tube  

E-Print Network [OSTI]

with conventional ballasts. The proposed strategy is experimentally implemented in the power electronics laboratory. Further, a front end passive power factor correction and harmonic reduction approach is suggested and fully analyzed. Power factor correction... and harmonic reduction is necessary to further improve the overall efficiency and also to comply with the new harmonic standards IEC-555, which limits the harmonics generated on a single phase ac source. To my parents ACKNOWLEDGMENTS I wish to express my...

Kuchimanchi, Krishna V.

1992-01-01T23:59:59.000Z

90

Lamp system for uniform semiconductor wafer heating  

DOE Patents [OSTI]

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

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

2001-01-01T23:59:59.000Z

91

Compact fluorescent lamp applications in luxury hotels  

SciTech Connect (OSTI)

Over the past several years, consumers, lighting designers, and energy conservationists have paid increasing attention to the special characteristics of compact fluorescent lamps (CFLs). CFLs can typically be used to replace incandescent lamps of three to four times their own wattage, and their color rendering indices (CRIs)-80 to 85-make them virtually indistinguishable from incandescents. The typical 10,0000-hour life of a CFL often makes savings in labor its most desirable feature when compared to a shorter-lived incandescent lamp.

Gilleskie, R.J.

1996-01-01T23:59:59.000Z

92

STATE OF UTAH CONTRACT NUMBER: MA049 January 24, 2014 Page 1 of 3 Includes Codale Lamp and Ballast  

E-Print Network [OSTI]

39% Off Air Filters 23% Off 40% Off 12% Off Paint & Accessories 23% Off 12% Off 25% Off Batteries and Storage 56078 Metal Working /Welding & Lubrication 54545 Motor and Power Transmission 28502 Outdoor

Capecchi, Mario R.

93

CALiPER Retail Lamps Study 3  

SciTech Connect (OSTI)

The CALiPER program first began investigating LED lamps sold at retail stores in 2010, purchasing 33 products from eight retailers and covering six product categories. The findings revealed a fragmented marketplace, with large disparities in performance of different products, accuracy of manufacturer claims, and offerings from different retail outlets. Although there were some good products, looking back many would not be considered viable competitors to other available options, with too little lumen output, not high enough efficacy, or poor color quality. CALiPER took another look in late 2011purchasing 38 products of five different types from nine retailers and the improvement was marked. Performance was up; retailer claims were more accurate; and the price per lumen and price per unit efficacy were down, although the price per product had not changed much. Nonetheless, there was still plenty of room for improvement, with the performance of LED lamps not yet reaching that of well-established classes of conventional lamps (e.g., 75 W incandescent A19 lamps). Since the second retail lamp study was published in early 2012, there has been substantial progress in all aspects of LED lamps available from retailers. To document this progress, CALiPER again purchased a sample of lamps from retail stores 46 products in total, focusing on A19, PAR30, and MR16 lamps but instead of a random sample, sought to select products to answer specific hypotheses about performance. These hypotheses focused on expanding ranges of LED equivalency, the accuracy of lifetime claims, efficacy and price trends, as well as changes to product designs. Among other results, key findings include: There are now very good LED options to compete with 60 W, 75 W, and 100 W incandescent A19 lamps, and 75 W halogen PAR30 lamps. MR16 lamps have shown less progress, but there are now acceptable alternatives to 35 W, 12 V halogen MR16 lamps and 50 W, 120 V halogen MR16 lamps for some applications. Other uses, such as in enclosed luminaires, may require more development. At the same price point, lamps purchased in 2013 tended to have higher output and slightly higher efficacy than in 2011 or 2010. Over 30% of the products purchased in 2013 exceeded the maximum efficacy measured in 2011 (71 lm/W), with the most efficacious product measured at 105 lm/W. There appears to be increasing consistency in color quality, with a vast majority of products having a CCT of 2700 K or 3000 K and a CRI between 80 and 85. There were also fewer poor performing products tested and more high-performing products available in 2013 than in previous years. The accuracy of equivalency and performance claims was better than in 2011, but remains a concern, with 43% of tested products failing to completely meet their equivalency claim and 20% of products failing to match the manufacturer’s performance data. Although progress has been substantial, on average LED lamps remain more expensive than other energy efficiency lighting technologies -- although some aspects can be superior. Although not universal to all product lines or all product types, the issue of insufficient lumen output from LED lamps is waning. Thus, manufacturers can focus on other issues, such as reducing cost, improving electrical/dimmer compatibility, eliminating flicker, or improving color quality. While these issues are not inherent to all products, they remain a concern for the broader market.

Royer, Michael P.; Beeson, Tracy A.

2014-02-01T23:59:59.000Z

94

Integral CFLs performance in table lamps  

SciTech Connect (OSTI)

This paper focuses on performance variations associated with lamp geometry and distribution in portable table luminaires. If correctly retrofit with compact fluorescent lamps (CFLs), these high use fixtures produce significant energy savings, but if misused, these products could instead generate consumer dissatisfaction with CFLs. It is the authors assertion that the lumen distribution of the light source within the luminaires plays a critical role in total light output, fixture efficiency and efficacy, and, perhaps most importantly, perceived brightness. The authors studied nearly 30 different integral (screw-based) CFLs available on the market today in search of a lamp, or group of lamps, which work best in portable table luminaires. The findings conclusively indicate that horizontally oriented CFLs outperform all other types of CFLs in nearly every aspect.

Page, E.; Driscoll, D.; Siminovitch, M.

1997-03-01T23:59:59.000Z

95

LED lamp power management system and method  

DOE Patents [OSTI]

An LED lamp power management system and method including an LED lamp having an LED controller 58; a plurality of LED channels 60 operably connected to the LED controller 58, each of the plurality of LED channels 60 having a channel switch 62 in series with at least one shunted LED circuit 83, the shunted LED circuit 83 having a shunt switch 68 in parallel with an LED source 80. The LED controller 58 reduces power loss in one of the channel switch 62 and the shunt switch 68 when LED lamp electronics power loss (P.sub.loss) exceeds an LED lamp electronics power loss limit (P.sub.lim); and each of the channel switches 62 receives a channel switch control signal 63 from the LED controller 58 and each of the shunt switches 68 receives a shunt switch control signal 69 from the LED controller 58.

Gaines, James; Clauberg, Bernd; Van Erp, Josephus A. M.

2013-03-19T23:59:59.000Z

96

The LAndscape Management Policy Simulator (LAMPS)  

E-Print Network [OSTI]

Considerations Riparian Management Choices Leave Tree Strategies Transition Probabilities Stochastic EventsThe LAndscape Management Policy Simulator (LAMPS) Pete Bettinger Department of Forest Resources Management intentions Prices and costs GIS databases Land use pattern Land use change Stand structure

97

IEEE TRANSACTIONS ON POWER ELECTRONICS, VOL. 23, NO. 1, JANUARY 2008 11 Electronic Ballast Control IC With Digital Phase  

E-Print Network [OSTI]

IEEE TRANSACTIONS ON POWER ELECTRONICS, VOL. 23, NO. 1, JANUARY 2008 11 Electronic Ballast Control ballast controller fabricated in a 0.8 CMOS process used in a 400 W, 150 kHz HID electronic ballast. Index Terms--Current regulation, digital control, electronic bal- last, integrated circuit, over voltage

98

6035 Hg(Ar) Lamp in 6058 Fiber Optic Accessory. Pencil Style Calibration Lamps  

E-Print Network [OSTI]

to that of the Hg(Ar) Lamp, which is the characteristic mercury line spectrum. Forced air-cooling (i.e. from of the handle for connection to the power supply. Table 1 Usable Wavelengths of Spectral Calibration Lamps (in.2 1079.8 1084.5 1114.3 Power Supplies; AC versus DC We offer different power supplies for different needs

Woodall, Jerry M.

99

Comparison of technologies for new energy-efficient lamps  

SciTech Connect (OSTI)

Energy-efficient light bulbs are being developed to replace the incandescent lamp where they can satisfy the design criteria and be used in sockets that have long hours of annual use. The four technologies discussed here include the compact fluorescent lamp, coated-filament lamp, electrodeless fluorescent lamp, and compact high-intensity discharge lamp. The systems demonstrate efficacy improvements of two to four times that of their incandescent counterparts. These new lamps have required considerable advances in lamp technology. They offer the potential for achieving efficacies close to 80 lumens per watt. These new lamps will reduce the energy used annually by incandescent lamps (190 BkWh) by more than 50% in the 1990s, at which times they will be commonly employed.

Verderber, R.R.; Rubinstein, F.R.

1983-06-01T23:59:59.000Z

100

Comparison of technologies for new energy-efficient lamps  

SciTech Connect (OSTI)

Energy-efficient light bulbs are being developed to replace the incandescent lamp where they can satisfy the design criteria and be used in sockets that have long hours of annual use. The four technologies discussed include the compact fluorescent lamp, coated-filament lamp, electrodeless fluorescent lamp, and compact high-intensity discharge lamp. The systems demonstrate efficacy improvements of two to four times that of their incandescent counterparts. These new lamps have required considerable advances in lamp technology. They offer the potential for achieving efficacies close to 80 lm/W. These new lamps will reduce the energy used annually by incandescent lamps (190 billion kWh) by more than 50 percent in the 1990's, at which times they will be commonly employed.

Verderber, R.R.; Rubinstein, F.M.

1984-09-01T23:59:59.000Z

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


101

E-Print Network 3.0 - ave lamp margareete Sample Search Results  

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

. . . . . . . . . . . . . . . . . . . . . .1 1.1 A-lamps... Problems Are you using incandescent A-lamps? Incandescent lamps are one of the most inefficient lighting... sources...

102

Electrodeless lamp energized by microwave energy  

SciTech Connect (OSTI)

This patent describes an electrodeless lamp. It comprises: a microwave cavity; a source of microwaves in communication with the cavity; a lamp envelope containing a plasma-forming medium mounted within the microwave cavity; a gas manifold for feeding gas to at least one gas passageway for directing a stream of gas to the outer surface of the envelope; a gas leak passageway leading from the gas manifold; a conductive mesh assembly for retaining microwaves within the cavity and permitting light to be emitted from the cavity. The assembly including gas flow blocking means for preventing the flow of gas through the gas leak passageway when the screen is in place in the lamp; and means for shutting off the source of microwaves when the gas pressure in the manifold drops below a predetermined value.

Ervin, R.M.; Perret, J.

1990-01-16T23:59:59.000Z

103

New Energy Efficiency Standards for Metal Halide Lamp Fixtures...  

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

Metal Halide Lamp Fixtures to Save on Energy Bills and Reduce Carbon Pollution New Energy Efficiency Standards for Metal Halide Lamp Fixtures to Save on Energy Bills and Reduce...

104

Laboratory Evaluation of LED T8 Replacement Lamp Products  

SciTech Connect (OSTI)

A report on a lab setting analysis involving LED lamps intended to directly replace T8 fluorescent lamps (4') showing light output, power, and economic comparisons with other fluorescent options.

Richman, Eric E.; Kinzey, Bruce R.; Miller, Naomi J.

2011-05-23T23:59:59.000Z

105

Text-Alternative Version: LED Replacements for Linear Fluorescent Lamps  

Broader source: Energy.gov [DOE]

Below is the text-alternative version of the "LED Replacements for Linear Fluorescent Lamps" webcast, held June 20, 2011.

106

Modeling of highly loaded fluorescent lamps  

SciTech Connect (OSTI)

Numerical modeling of the positive column of fluorescent lamps under conditions of high current density are of current interest, particularly in view of recent developments in electrodeless lamps. Current models tend to overestimate radiation output, and consequently the maintenance electric field in these discharges. Under highly loaded conditions, mercury-rare gas fluorescent lamps exhibit strong mercury depletion on axis (cataphoresis), and an understanding of resonance radiation transport under these conditions is therefore vital to the development of models with a predictive capability. The authors have explored the effect of radial cataphoresis on resonance radiation trapping for situations in which the radiation transport is dominated by foreign gas broadening, Doppler broadening, or resonance collisional broadening of the spectral line. Several different production rates per unit volume of resonance (excited) atoms have also been studied. It is advantageous in many cases to parameterize the trapped decay rate in terms of the total number of ground state atoms in the positive column independent of their radial distribution. The results of this work have been included in a numerical model of the positive column and the predicted influence on discharge parameters will be presented for cases of interest to highly loaded lamps.

Lister, G.G.; Lawler, J.E.; Curry, J.J.

1999-07-01T23:59:59.000Z

107

Mercury Lamps Recycling Fluorescent light-tubes, compact fluorescent bulbs, mercury and sodium vapor lamps, ultraviolet and  

E-Print Network [OSTI]

Mercury Lamps Recycling Fluorescent light-tubes, compact fluorescent bulbs, mercury and sodium vapor lamps, ultraviolet and HID (high-intensity discharge) lamps and all other mercury containing labeled for shipment to a recycling plant for mercury, glass and aluminum recovery. The beneficial re

Baker, Chris I.

108

LED lamp color control system and method  

DOE Patents [OSTI]

An LED lamp color control system and method including an LED lamp having an LED controller 58; and a plurality of LED channels 60 operably connected to the LED controller 58, each of the plurality of LED channels 60 having a channel switch 62 in series with at least one shunted LED circuit 83, the shunted LED circuit 83 having a shunt switch 68 in parallel with an LED source 80. The LED controller 58 determines whether the LED source 80 is in a feedback controllable range, stores measured optical flux for the LED source 80 when the LED source 80 is in the feedback controllable range, and bypasses storing the measured optical flux when the LED source 80 is not in the feedback controllable range.

Gaines, James; Clauberg, Bernd; Van Erp, Josephus A.M.

2013-02-05T23:59:59.000Z

109

Lamp method and apparatus using multiple reflections  

DOE Patents [OSTI]

A method wherein the light in a sulfur or selenium lamp is reflected through the fill a multiplicity of times to convert ultraviolet radiation to visible is disclosed. A light emitting device comprised of an electrodeless envelope which bears a light reflecting covering around a first portion which does not crack due to differential thermal expansion and which has a second portion which comprises a light transmissive aperture. 20 figs.

MacLennan, D.A.; Turner, B.; Kipling, K.

1999-05-11T23:59:59.000Z

110

Lamp method and apparatus using multiple reflections  

DOE Patents [OSTI]

A method wherein the light in a sulfur or selenium lamp is reflected through the fill a multiplicity of times to convert ultraviolet radiation to visible. A light emitting device comprised of an electrodeless envelope which bears a light reflecting covering around a first portion which does not crack due to differential thermal expansion and which has a second portion which comprises a light transmissive aperture.

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

1999-01-01T23:59:59.000Z

111

Electrodeless lamp using a single magnetron and improved lamp envelope therefor  

SciTech Connect (OSTI)

A microwave generated electrodeless lamp using a single magnetron, and an improved lamp envelope therefor. An elongated lamp envelope containing a plasma forming medium is disposed in a microwave chamber comprised of a reflector and mesh. The reflector includes a pair of coupling slots, each of which is disposed equidistant from the ends of the lamp envelope. A waveguide means is provided which has a wall which is comprised of a portion of the reflector which includes the slots, and has means for introducing microwave energy thereto at an area equidistant from the two slots so that the energy couples equally to the slots. When the frequency of the microwave energy and chamber dimensions are arranged so that a symmetrical standing wave exists in the chamber, a balanced system results wherein after a short start-up period, approximately equal light output is obtained from the respective ends of the lamp envelop. In order to prevent recondensation of the envelope fill during operation at areas of low temperature, and improved envelope is provided in which such areas are severly tapered to cause hotter operation thereat.

Ury, M. G.; Ryan, P. J.; Wood, Ch. H.

1985-03-12T23:59:59.000Z

112

High output lamp with high brightness  

DOE Patents [OSTI]

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

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

2002-01-01T23:59:59.000Z

113

Application of vane-type resonator to microwave powered electrodeless HID lamp  

SciTech Connect (OSTI)

A cavity resonator has been generally used as microwave applicator for an electrodeless high intensity discharge (HID) lamp. The size of a cavity resonator is determined by the wavelength of a microwave applied. For example, for a microwave of 2.45 GHz, an inner diameter of more than about 76 mm is necessary for obtaining a microwave resonant field, and then the size of a plasma arc capable of maintaining a stable discharge is experimentally limited at about 15 mm and above. Accordingly the microwave powered electrodeless HID lamp device using cavity resonator is inappropriate in applications where a point light source is required. A vane-type resonator is generally known as an anode of a magnetron, which decides the oscillation frequency of the magnetron. The authors used 3-D finite element method simulation for a design of a vane-type resonator with parabolic reflector to obtain a desired resonant frequency. According to the results of the simulation, the sizes of a 4-vanes resonator with the parabolic reflector were decided, and the resonator made of aluminum and copper was prepared. An electrodeless lamp with InBr and Ar gas enclosed in a spherical quartz glass tube having an inner diameter of about 4 mm was also prepared, and was set at center portion of the resonator. The total luminous flux was about 2,150 lm at microwave input of 27 W. Incidentally, the CRI and Tc for this lamp were 93 and 10,200 K, respectively. Thus, it becomes possible to efficiently couple microwave energy with a smaller-sized electrodeless HID lamp than conventional.

Hochi, Akira; Takeda, Mamoru

1999-07-01T23:59:59.000Z

114

Heat transfer assembly for a fluorescent lamp and fixture  

DOE Patents [OSTI]

In a lighting fixture including a lamp and a housing, a heat transfer structure is disclosed for reducing the minimum lamp wall temperature of a fluorescent light bulb. The heat transfer structure, constructed of thermally conductive material, extends from inside the housing to outside the housing, transferring heat energy generated from a fluorescent light bulb to outside the housing where the heat energy is dissipated to the ambient air outside the housing. Also disclosed is a method for reducing minimum lamp wall temperatures. Further disclosed is an improved lighting fixture including a lamp, a housing and the aforementioned heat transfer structure.

Siminovitch, Michael J. (Richmond, CA); Rubenstein, Francis M. (Berkeley, CA); Whitman, Richard E. (Richmond, CA)

1992-01-01T23:59:59.000Z

115

The National Energy Policy Act and lamp replacement options  

SciTech Connect (OSTI)

The National Policy Act of 1992 involves the creation of energy efficiency standards for a wide range of products including fluorescent and incandescent lamps. Minimum efficacy (lumens per watt) and color rendering index (CRI) standards are mandated for the popular fluorescent lamps: four-foot medium bi-pin, two-foot U-bent, eight-foot slimline and eight-foot high output. Minimum efficacies are mandated for specific incandescent R and PAR reflector lamps. These standards will affect selected colors and designs of fluorescent lamps, the most significant being the standard lamps in the cool white and warm white colors. The incandescent reflector lamps will include the R-30, R-40, PAR-38 lamps above 40 watts, excluding the halogen types. These efficiency and color rendering standards will require end-users and specifiers to select replacement fluorescent lamps from a range of performance characteristics (lumen output, efficacy, CRI and price). The choice of replacement for the R and PAR incandescent lamps will include the halogen designs and compact fluorescent designs. In this paper, replacement options will be analyzed and discussed and the effect of these options on the performance of the lighting system will be explored in detail.

Ryerson, C.

1995-06-01T23:59:59.000Z

116

Max Tech and Beyond: High-Intensity Discharge Lamps  

E-Print Network [OSTI]

of color compared with the incandescent reference source isin this report. Standard Incandescent Halogen Low-Pressure:value equivalent to an incandescent filament lamp. Taking

Scholand, Michael

2012-01-01T23:59:59.000Z

117

Heat transfer assembly for a fluorescent lamp and fixture  

DOE Patents [OSTI]

In a lighting fixture including a lamp and a housing, a heat transfer structure is disclosed for reducing the minimum lamp wall temperature of a fluorescent light bulb. The heat transfer structure, constructed of thermally conductive material, extends from inside the housing to outside the housing, transferring heat energy generated from a fluorescent light bulb to outside the housing where the heat energy is dissipated to the ambient air outside the housing. Also disclosed is a method for reducing minimum lamp wall temperatures. Further disclosed is an improved lighting fixture including a lamp, a housing and the aforementioned heat transfer structure. 11 figs.

Siminovitch, M.J.; Rubenstein, F.M.; Whitman, R.E.

1992-12-29T23:59:59.000Z

118

2014-12-05 Issuance: Energy Conservation Standard for General...  

Energy Savers [EERE]

12-05 Issuance: Energy Conservation Standard for General Service Lamps; Notice of Public Meeting and Availability of the Preliminary Technical Support Document 2014-12-05 Issuance:...

119

2015-01-26 Issuance: Energy Conservation Standards for General...  

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

extension of comment period regarding energy conservation standards for general service lamps, as issued by the Deputy Assistant Secretary for Energy Efficiency on January 26,...

120

Compact microwave lamp having a tuning block and a dielectric located in a lamp cavity  

DOE Patents [OSTI]

A microwave lamp having a compact structure utilizing a coupling slot which has a dielectric member extending therethrough and a tuning block adjoining the coupling slot. A non-conventional waveguide is used which has about the width of a WR-284 waveguide and about the length of a WR-340 waveguide.

Simpson, James E. (Gaithersburg, MD)

2000-01-01T23:59:59.000Z

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


121

New LED light sources and lamps for general illumination  

E-Print Network [OSTI]

, Henrik Pedersen and Paul Michael Petersen Risø DTU, Optics and Plasma Research Department, DK-4000

122

Lamp for generating high power ultraviolet radiation  

DOE Patents [OSTI]

The apparatus is a gas filled ultraviolet generating lamp for use as a liquid purifier. The lamp is powred by high voltage AC, but has no metallic electrodes within or in contact with the gas enclosure which is constructed as two concentric quartz cylinders sealed together at their ends with the gas fill between the cylinders. Cooling liquid is pumped through the volume inside the inner quartz cylinder where an electrically conductive pipe spaced from the inner cylinder is used to supply the cooling liquid and act as the high voltage electrode. The gas enclosure is enclosed within but spaced from a metal housing which is connected to operate as the ground electrode of the circuit and through which the treated fluid flows. Thus, the electrical circuit is from the central pipe, and through the cooling liquid, the gas enclosure, the treated liquid on the outside of the outer quartz cylinder, and to the housing. The high voltage electrode is electrically isolated from the source of cooling liquid by a length of insulated hose which also supplies the cooling liquid.

Morgan, Gary L. (Elkridge, MD); Potter, James M. (Los Alamos, NM)

2001-01-01T23:59:59.000Z

123

Retail Lamps Study 3.2: Lumen and Chromaticity Maintenance of...  

Energy Savers [EERE]

Maintenance of LED PAR38 Lamps LED T8 Replacement Lamps 2014-05-16 Issuance: Test Procedures for Integrated Light-Emitting Diode Lamps; Supplemental Notice of Proposed Rulemaking...

124

Emission and spectral characteristics of electrodeless indium halide lamp  

SciTech Connect (OSTI)

The electrodeless HID lamp excited by microwave has been intensively investigated because of its long life, high efficacy and environmental aspect. This study reports excellent emission and spectral characteristics of electrodeless HID lamp containing indium halides. The authors investigate InI and InBr as ingredients, and measure the microwave excited spectra and luminous intensities of lamps which are made from spherical silica glass in 10--40 mm outer diameter and with various amounts of halides. It is well known that such indium halides in the usual metal-halide lamps have strong blue line emission at 410 and 451nm. But, in the authors` microwave excited lamps, continuous spectrum can be observed in addition in the visible region. Increasing input of power of microwave makes this continuous spectrum stronger. Below 1kW microwave input power, the spectrum of InBr lamp almost resembled the CIE standard illuminant D65. As a consequence of the spectrum, they found that the color rendering and the duv of InBr lamp were excellent as high as 95 and smaller than 0.002, respectively, in the region of 400--800W input power. The efficacy higher than 100 lm/W was further achieved at 400W. The authors confirm that the microwave excited indium halides lamps can be applicable to many fields of lighting.

Takeda, M.; Hochi, A.; Horii, S.; Matsuoka, T. [Matsushita Electric Industrial Co., Ltd., Kyoto (Japan). Lighting Research Lab.

1997-12-31T23:59:59.000Z

125

Fluorescent lamp with static magnetic field generating means  

DOE Patents [OSTI]

A fluorescent lamp wherein magnetic field generating means (e.g., permanent magnets) are utilized to generate a static magnetic field across the respective electrode structures of the lamp such that maximum field strength is located at the electrode's filament. An increase in efficacy during operation has been observed. 2 figs.

Moskowitz, P.E.; Maya, J.

1987-09-08T23:59:59.000Z

126

Electrodeless HID lamp study. Final report. [High intensity discharge  

SciTech Connect (OSTI)

High intensity discharge lamps excited by solenoidal electric fields (SEF/HID) were examined for their ability to give high brightness, high efficacy and good color. Frequency of operation was 13.56 MHz (ISM Band) and power to the lamp plasma ranged from about 400 to 1000 W. Radio frequency transformers with air cores and with air core complemented by ferrite material in the magnetic path were used to provide the voltage for excitation. Electrical properties of the matching network and the lamp plasma were measured or calculated and total light from the lamp was measured by an integrating sphere. Efficacies calculated from measurement were found to agree well with the positive column efficacies of conventional HID lamps containing only mercury, and with additives of sodium, thallium, and scandium iodide. Recommendations for future work are given.

Anderson, J.M.; Johnson, P.D.; Jones, C.E.; Rautenberg, T.H.

1985-01-01T23:59:59.000Z

127

E-Print Network 3.0 - arc lamp heal Sample Search Results  

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

particularly... sources and mechanical wafer transport; or electrical lamps, either incandescent or arc, with programmed... in lamp FIG. 1. Temperature sensor signal vs time for...

128

Defining the Effectiveness of UV Lamps Installed in Circulating Air Ductwork  

SciTech Connect (OSTI)

Germicidal ultraviolet (UVGI) lamps have a long history of use for inactivating microbial aerosols. Most reports have focused on the control of infectious diseases, such as tuberculosis (TB), in the occupied spaces of medical facilities. Ventilation duct use of UVGI has been increasing. In-duct applications are generally more concerned with controlling environmental organisms than with controlling infections agents. This document reports the results of a project to investigate the ability of UVGI lamps to inactivate representative environmental microbial aerosols in ventilation ducts. During this research, UVGI lamps were experimentally demonstrated to inactivate bioaerosols composed of vegetative bacteria, bacteria spores, or fungal spores to a reproducible degree under conditions of fixed dose. Vegetative bacteria were most susceptible to UVGI, with bacteria and fungal spores being substantially more resistant. The performance equation commonly cited in the literature for UVGI inactivation was found to generally apply, provided its parameters were known. Revision of final report DOE/OR22674/610-40030-01. Revised table 5 on page 33.

Douglas VanOsdell; Karin Foarde

2002-11-30T23:59:59.000Z

129

Highly Efficient Small Form Factor LED Retrofit Lamp  

SciTech Connect (OSTI)

This report summarizes work to develop a high efficiency LED-based MR16 lamp downlight at OSRAM SYLVANIA under US Department of Energy contract DE-EE0000611. A new multichip LED package, electronic driver, and reflector optic were developed for these lamps. At steady-state, the lamp luminous flux was 409 lumens (lm), luminous efficacy of 87 lumens per watt (LPW), CRI (Ra) of 87, and R9 of 85 at a correlated color temperature (CCT) of 3285K. The LED alone achieved 120 lumens per watt efficacy and 600 lumen flux output at 25 C. The driver had 90% electrical conversion efficiency while maintaining excellent power quality with power factor >0.90 at a power of only 5 watts. Compared to similar existing MR16 lamps using LED sources, these lamps had much higher efficacy and color quality. The objective of this work was to demonstrate a LED-based MR16 retrofit lamp for replacement of 35W halogen MR16 lamps having (1) luminous flux of 500 lumens, (2) luminous efficacy of 100 lumens per watt, (3) beam angle less than 40{sup o} and center beam candlepower of at least 1000 candelas, and (4) excellent color quality.

Steven Allen; Fred Palmer; Ming Li

2011-09-11T23:59:59.000Z

130

A light diet for a giant appetite: An assessment of China's proposed fluorescent lamp standard  

E-Print Network [OSTI]

standard for linear fluorescent lamps Length (mm) Minimum efficacy (lm/W) Efficacy for energy conservation

Lin, Jiang

2002-01-01T23:59:59.000Z

131

One piece microwave container screens for electrodeless lamps  

DOE Patents [OSTI]

A microwave powered electrodeless lamp includes an improved screen unit having mesh and solid sections with an internal reflector to reflect light into a light-transmitting chamber defined in the lamp microwave cavity by the reflector and the mesh section. A discharge envelope of a bulb is disposed in the light-transmitting chamber. Light emitted from the envelope is prevented by the reflector from entering the cavity portion bounded by the solid section of the screen. Replacing mesh material by solid metal material as part of the screen unit significantly reduces leakage of microwave energy from the lamp. The solid section has multiple compliant fingers defined therein for engaging the periphery of a flange on the waveguide unit so that a hose clamp can easily secure the screen to the assembly. Screen units of this type having different mesh section configurations can be interchanged in the lamp assembly to produce different respective illumination patterns.

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

1998-01-01T23:59:59.000Z

132

Conservation Potential of Compact Fluorescent Lamps in India and Brazil  

E-Print Network [OSTI]

38 TWh, 10% of which was for incandescent lighting (Fig. 3).The electricity consumed in incandescent lighting can be300 and 400 million incandescent lamps in the country. Let

Gadgil, A.J.

2008-01-01T23:59:59.000Z

133

All mercury lamps contain small amounts of mercury. An electric current passes through the lamp and vaporizes the mercury to generate light. Recycling mercury containing lamps protects human health and our environment from heavy  

E-Print Network [OSTI]

All mercury lamps contain small amounts of mercury. An electric current passes through the lamp and vaporizes the mercury to generate light. Recycling mercury containing lamps protects human health and our the environment by recycling universal wastes, contact EH&S at (949) 824-6200 or visit: www.ehs.uci.edu Mercury

George, Steven C.

134

Magnetic fluorescent lamp having reduced ultraviolet self-absorption  

DOE Patents [OSTI]

The radiant emission of a mercury-argon discharge in a fluorescent lamp assembly (10) is enhanced by providing means (30) for establishing a magnetic field with lines of force along the path of electron flow through the bulb (12) of the lamp assembly, to provide Zeeman splitting of the ultraviolet spectral line. Optimum results are obtained when the magnetic field strength causes a Zeeman splitting of approximately 1.7 times the thermal line width.

Berman, Samuel M. (San Francisco, CA); Richardson, Robert W. (Pelham, NY)

1985-01-01T23:59:59.000Z

135

Perceptions of compact fluorescent lamps in the residential market  

SciTech Connect (OSTI)

Compact fluorescent lamps offer significant energy savings over other forms of residential lighting and last up to 10 times longer than conventional incandescent bulbs. In order to better understand existing barriers to acceptance and future opportunities for growth of compact fluorescent lighting in the residential retrofit sector, a three stage research project was designed and conducted by MACRO Consulting, Inc. Assessment of whether or not the benefits of compact fluorescent lamps are sufficient to overcome price resistance was one of the major purposes of this project. Residential customers were interviewed in focus group sessions to help determine key issues and motivating forces in the lighting/energy saving/cost saving equation. Residential customers in 5 major market areas were contacted by telephone, and data about their awareness, knowledge and use of compact fluorescent lighting were collected. These customers also participated in an attribute rating exercise in which compact fluorescent lamps were compared with fluorescent tubes and incandescent bulbs on a series of product attributes. A price elasticity exercise was also conducted. Teleconferences with retailers of compact fluorescent lamps were conducted in order to explore their knowledge of and attitudes towards compact fluorescent lamps. Customers agree that energy savings and longer life are both positive attributes for residential lighting products, but they are not yet ready to make the switch away from inexpensive, versatile and readily available incandescent bulbs to compact fluorescent lamps. Compact fluorescent lamps are rated poorly (even by satisfied'' users) on each of seven positive attributes of home lighting. Major barriers to increased use of compact fluorescent lamps include price, convenience, and performance. Prices above $10 are considered outrageous''. Product improvements are needed for appearance, light output and versatility.

Weiner, J.; Campbell, C.J. (Macro Consulting, Inc., Mountain View, CA (United States))

1992-07-01T23:59:59.000Z

136

Ecosystem under Pressure: Examining the Phytoplankton Community in the High Ballast Water Discharge Environment of Galveston Bay, Texas (USA)  

E-Print Network [OSTI]

water from port to port (Anderson, 2009). The combination of larger ballast tanks, ever increasing international commerce and shorter transit times, has synergistically contributed to the increasing rate of successful invasions in coastal bays... and Gymnodinium catenatum (found in POH June 2007), native to Japan, was introduced to Australia (Hallegraeff and Bolch, 1991). Viable cysts of the toxic species of Alexandrium were identified and cultured from multiple ballast tanks of vessels traveling from...

Steichen, Jamie L

2013-01-15T23:59:59.000Z

137

Lamp method and apparatus using multiple reflections  

DOE Patents [OSTI]

An electrodeless microwave discharge lamp includes an envelope with a discharge forming fill disposed therein which emits light, the fill being capable of absorbing light at one wavelength and re-emitting the absorbed light at a different wavelength, the light emitted from the fill having a first spectral power distribution in the absence of reflection of light back into the fill, a source of microwave energy coupled to the fill to excite the fill and cause the fill to emit light, and a reflector disposed within the microwave cavity and configured to reflect at least some of the light emitted by the fill back into the fill while allowing some light to exit, the exiting light having a second spectral power distribution with proportionately more light in the visible region as compared to the first spectral power distribution, wherein the light re-emitted by the fill is shifted in wavelength with respect to the absorbed light and the magnitude of the shift is in relation to an effective optical path length.

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

2001-01-01T23:59:59.000Z

138

Assessing the Risk of Mercury in Drinking Water after UV Lamp Breaks Page 1 Assessing the Risk of Mercury in Drinking Water after UV Lamp Breaks  

E-Print Network [OSTI]

Assessing the Risk of Mercury in Drinking Water after UV Lamp Breaks Page 1 Assessing the Risk of Mercury in Drinking Water after UV Lamp Breaks Heidi Borchers University of New Hampshire, Environmental Ultraviolet (UV) lamps generate ultraviolet light through the vaporization of elemental mercury, by using

139

Red phosphors for use in high CRI fluorescent lamps  

DOE Patents [OSTI]

Novel red emitting phosphors for use in fluorescent lamps resulting in superior color rendering index values compared to conventional red phosphors. Also disclosed is a fluorescent lamp including a phosphor layer comprising blends of one or more of a blue phosphor, a blue-green phosphor, a green phosphor and a red a phosphor selected from the group consisting of SrY.sub.2 O.sub.4 :Eu.sup.3+, (Y,Gd)Al.sub.3 B.sub.4 O.sub.12 :Eu.sup.3+, and [(Y.sub.1-x-y-m La.sub.y)Gd.sub.x ]BO.sub.3 :Eu.sub.m wherein y<0.50 and m=0.001-0.3. The phosphor layer can optionally include an additional deep red phosphor and a yellow emitting phosphor. The resulting lamp will exhibit a white light having a color rendering index of 90 or higher with a correlated color temperature of from 2500 to 10000 Kelvin. The use of the disclosed red phosphors in phosphor blends of lamps results in high CRI light sources with increased stability and acceptable lumen maintenance over the course of the lamp life.

Srivastava, Alok; Comanzo, Holly; Manivannan, Vankatesan; Setlur, Anant Achyut

2005-11-15T23:59:59.000Z

140

Microwave generated electrodeless lamp for producing bright output  

SciTech Connect (OSTI)

A microwave generated electrodeless light source for producing a bright output comprising a lamp structure including a microwave chamber and a plasma medium-containing lamp envelope having a maximum dimension which is substantially less than a wavelength disposed therein. To provide the desired radiation output the interior of the chamber is coated with a UV-reflective material and the chamber has an opening for allowing UV radiation to exit, which is covered with a metallic mesh. The chamber is arranged to be near-resonant at a single wavelength, and the lamp envelope has a fill including mercury at an operating pressure of 1-2 atmospheres, while a power density of at least 250-300 (watts/cm/sup 3/) is coupled to the envelope to result in a relatively high deep UV output at a relatively high brightness.

Wood, Ch. H.; Ury, M. G.

1985-03-26T23:59:59.000Z

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


141

Very high efficacy electrodeless high intensity discharge lamps  

SciTech Connect (OSTI)

This patent describes an electrodeless arc lamp for forming a ring shaped plasma in a region therein during operation comprising a tube having a raised bottom center section, and an optically transparent outer jacket hermetically sealing the tube to protect the tube from cooling by convection. The raised center section rises centrally to form a ring shaped reservoir below the region in which the rig shaped plasma is formed to minimize wall cooling during operation of the lamp so that there is enhanced excitation near the center of the tube.

Johnson, P.D.

1987-11-10T23:59:59.000Z

142

Very high efficacy electrodeless high intensity discharge lamps  

DOE Patents [OSTI]

An electrodeless arc lamp comprises an outer jacket hermetically sealing and thermally protecting an arc tube inside which has an upwardly convex bottom center section. The absence of chemically reactive electrode material makes it possible to use metal halides other than iodides. The tube contains chlorides, bromides or a mixture thereof of scandium and sodium in a nearly equimolar relationship in addition to mercury and an inert gas. Good color balance can be obtained at reduced reservoir temperature and with less power loss. Reduction in wall temperature makes it possible to attain longer lamp life.

Johnson, P.D.

1985-10-03T23:59:59.000Z

143

Practical features of illumination with high pressure sodium lamps  

SciTech Connect (OSTI)

A number of concerns raised about the health effects of high pressure sodium lamps (HPS) are discussed. The notion of a ''natural'' human photic environment based on sunlight is disputed. Humans are better adapted to the ''greenish'' spectral composition of forest light than to direct sunlight. It is ironic that the artificial light source which has received the most disapproval, cool white flourescent lamp, has a spectral composition similar to that of forest light. HPS is also available in a full range of colors. Some successful examples of HPS--from North Division High School, in Milwaukee, Wisconsin, to museum exhibits at National Geographic in Washington--are listed.

Corth, R.

1983-06-01T23:59:59.000Z

144

Very high efficacy electrodeless high intensity discharge lamps  

DOE Patents [OSTI]

An electrodeless arc lamp comprises an outer jacket hermetically sealing and thermally protecting an arc tube inside which has an upwardly convex bottom center section. The absence of chemically reactive electrode material makes it possible to use metal halides other than iodides. The tube contains chlorides, bromides or a mixture thereof of scandium and sodium in a nearly equimolar relationship in addition to mercury and an inert gas. Good color balance can be obtained at reduced reservoir temperature and with less power loss. Reduction in wall temperature makes it possible to attain longer lamp life.

Johnson, Peter D. (Schenectady, NY)

1987-01-01T23:59:59.000Z

145

Biomass-Derived Hydrogen from a Thermally Ballasted Gasifier Robert C. Brown, Glenn Norton, Andy Suby, Jerod Smeenk, Keith Cummer, and Josh Nunez  

E-Print Network [OSTI]

Biomass-Derived Hydrogen from a Thermally Ballasted Gasifier Robert C. Brown, Glenn Norton, Andy fuel cells. We have developed a thermally ballasted gasifier that uses a single reactor for both compared to conventional gasifiers. The carbon monoxide, along with steam used to fluidize the reactor, can

146

Evaluation of Ships' Ballast Water as a Vector for Transfer of Pathogenic Bacteria to Marine Protected Areas in the Gulf of Mexico  

E-Print Network [OSTI]

and unloading cargo as well as during transit. As a ship unloads it’s cargo at a port, it takes on ballast water and then when it loads cargo at the next port, it discharges the ballast water, thus transferring water from port to port. Aquatic organisms...

Morris, Theresa L

2013-05-10T23:59:59.000Z

147

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

Broader source: Energy.gov [DOE]

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

148

Thermal element for maintaining minimum lamp wall temperature in fluorescent fixtures  

DOE Patents [OSTI]

In a lighting fixture including a lamp and a housing, an improvement is disclosed for maintaining a lamp envelope area at a cooler, reduced temperature relative to the enclosed housing ambient. The improvement comprises a thermal element in thermal communication with the housing extending to and springably urging thermal communication with a predetermined area of the lamp envelope surface.

Siminovitch, Michael J. (Richmond, CA)

1992-01-01T23:59:59.000Z

149

A Behavioral SPICE Compatible Model of an Electrodeless Fluorescent Lamp Sam Ben-Yaakov*1  

E-Print Network [OSTI]

to the plasma. In the case of the lamp with electrodes, coupling is via wires. In the case of the electrodelessA Behavioral SPICE Compatible Model of an Electrodeless Fluorescent Lamp Sam Ben-Yaakov*1 , Moshe, SPICE compatible, model was developed for an electrodeless fluorescent lamp (OSRAM SYLVANIA ICETRON

150

Transport phenomena in metal-halide lamps a poly-diagnostic study  

E-Print Network [OSTI]

/ spectroscopie. Subject headings: gas discharges / metal-halide lamps / plasma diagnostics / plasma properties-halide arc lamps . . . . . . . . . . . 7 1.3 Scope of ThesisTransport phenomena in metal-halide lamps a poly-diagnostic study Tanya Nimalasuriya #12;Copyright

Eindhoven, Technische Universiteit

151

Thermal element for maintaining minimum lamp wall temperature in fluorescent fixtures  

DOE Patents [OSTI]

In a lighting fixture including a lamp and a housing, an improvement is disclosed for maintaining a lamp envelope area at a cooler, reduced temperature relative to the enclosed housing ambient. The improvement comprises a thermal element in thermal communication with the housing extending to and springably urging thermal communication with a predetermined area of the lamp envelope surface. 12 figs.

Siminovitch, M.J.

1992-11-10T23:59:59.000Z

152

Basics of lava-lamp convection Balzs Gyre1  

E-Print Network [OSTI]

marketed only since the sixties 1 . The most essential ingredients are two immis- cible fluids of densities function, the lava lamp has been used also as visual aid in geoscience courses 2 demonstrat- ing phenomena such as the transformation of energy, force and motion, adiabatic circulations in the atmosphere and oceans, or magma

Jánosi, Imre M.

153

Technical support document: Energy efficiency standards for consumer products: Room air conditioners, water heaters, direct heating equipment, mobile home furnaces, kitchen ranges and ovens, pool heaters, fluorescent lamp ballasts and television sets. Volume 2, Fluorescent lamp ballasts, television sets, room air conditioners, and kitchen ranges and ovens  

SciTech Connect (OSTI)

This document is divided into ``volumes`` B through E, dealing with individual classes of consumer products. Chapters in each present engineering analysis, base case forecasts, projected national impacts of standards, life-cycle costs and payback periods, impacts on manufacturers, impacts of standards on electric utilities, and environmental effects. Supporting appendices are included.

Not Available

1993-11-01T23:59:59.000Z

154

Efficacy of open-ocean ballast water exchange as a means of preventing invertebrate invasions between freshwater ports  

E-Print Network [OSTI]

between freshwater ports Derek K. Gray Great Lakes Institute for Environmental Research, University Lakes to European ports. Each vessel had paired ballast tanks, one of which was designated as a control ports. BWE was verified by ship records and, in two cases, by in situ water quality sensors. BWE

155

The electrical and lumen output characteristics of an RF lamp  

SciTech Connect (OSTI)

Low pressure rf discharges have been studied for over a century. Their first practical application for lighting was proposed by Tesla in 1891. Since then hundreds of patents have been published attempting to implement rf lighting. However, progress in understanding rf discharge phenomena (mostly driven by plasma processing needs) and dramatic improvement in the performance/cost ratio of rf power sources have recently opened the door for development of rf light sources. Today commercial inductively coupled electrodeless lamps are offered by Matsuhita, Philips and GE. In this work the authors present measurements of the electrical characteristics and lumen output from a 2.65 MHz driven inductively coupled light source. Measurements were made on a spherical lamp of 3.125 inch diameter with a re-entrant cavity that houses a cylindrical ferrite core around which is wrapped the primary coil.

Alexandrovich, B.M.; Godyak, V.A.; Piejak, R.B. [Osram Sylvania Inc., Beverly, MA (United States)

1996-12-31T23:59:59.000Z

156

Performance of T12 and T8 Fluorescent Lamps and Troffers and LED Linear Replacement Lamps CALiPER Benchmark Report  

SciTech Connect (OSTI)

The Department of Energy (DOE) Commercially Available LED Product Evaluation and Reporting (CALiPER) Program was established in 2006 to investigate the performance of light-emitting diode (LED) based luminaires and replacement lamps. To help users better compare LED products with conventional lighting technologies, CALiPER has also performed benchmark research and testing of traditional (i.e., non-LED) lamps and fixtures. This benchmark report addresses standard 4-foot fluorescent lamps (i.e., T12 and T8) and the 2-foot by 4-foot recessed troffers in which they are commonly used. This report also examines available LED replacements for T12 and T8 fluorescent lamps, and their application in fluorescent troffers. The construction and operation of linear fluorescent lamps and troffers are discussed, as well as fluorescent lamp and fixture performance, based on manufacturer data and CALiPER benchmark testing. In addition, the report describes LED replacements for linear fluorescent lamps, and compares their bare lamp and in situ performance with fluorescent benchmarks on a range of standard lighting measures, including power usage, light output and distribution, efficacy, correlated color temperature, and the color rendering index. Potential performance and application issues indicated by CALiPER testing results are also examined.

Myer, Michael; Paget, Maria L.; Lingard, Robert D.

2009-01-16T23:59:59.000Z

157

CALiPER Retail Lamps Study RRL3.2 Lumen and Chromaticity Maintenance of LED A lamps Operated in Steady-State Conditions  

SciTech Connect (OSTI)

The lumen depreciation and color shift of 17 different A lamps (15 LED, 1 CFL, 1 halogen) was monitored in the automated long-term test apparatus (ALTA) for more than 7,500 hours. Ten samples of each lamp model were tested, with measurements recorded on a weekly basis. The lamps were operated continuously at an ambient temperature of 45°C (-1°C). Importantly, the steady-state test conditions were not optimized for inducing catastrophic failure for any of the lamp technologies—to which thermal cycling is a strong contributor— and are not typical of normal use patterns—which usually include off periods where the lamp cools down. Further, the test conditions differ from those used in standardized long-term test methods (i.e., IES LM-80, IES LM-84), so the results should not be directly compared. On the other hand, the test conditions are similar to those used by ENERGY STAR (when elevated temperature testing is called for). Likewise, the conditions and assumptions used by manufacturers to generated lifetime claims may vary; the CALiPER long-term data is informative, but cannot necessarily be used to discredit manufacturer claims. The test method used for this investigation should be interpreted as one more focused on the long-term effects of elevated temperature operation, at an ambient temperature that is not uncommon in luminaires. On average, the lumen maintenance of the LED lamps monitored in the ALTA was better than benchmark lamps, but there was considerable variation from lamp model to lamp model. While three lamp models had average lumen maintenance above 99% at the end of the study period, two products had average lumen maintenance below 65%, constituting a parametric failure. These two products, along with a third, also exhibited substantial color shift, another form of parametric failure. While none of the LED lamps exhibited catastrophic failure—and all of the benchmarks did—the early degradation of performance is concerning, especially with a new technology trying to build a reputation with consumers. Beyond the observed parametric failures nearly half of the products failed to meet early-life thresholds for lumen maintenance, which were borrowed from ENERGY STAR specifications. That is, the lumen maintenance was sufficiently low at 6,000 hours that seven of the products are unlikely to have lumen maintenance above 70% at their rated lifetime (which was usually 25,000 hours). Given the methods used for this investigation—most notably continuous operation—the results should not be interpreted as indicative of a lamp’s performance in a typical environment. Likewise, these results are not directly relatable to manufacturer lifetime claims. This report is best used to understand the variation in LED product performance, compare the robustness of LED lamps and benchmark conventional lamps, and understand the characteristics of lumen and chromaticity change. A key takeaway is that the long-term performance of LED lamps can vary greatly from model to model (i.e., the technology is not homogenous), although the lamp-to-lamp consistency within a given model is relatively good. Further, operation of LED lamps in an enclosed luminaire (or otherwise in high ambient temperatures), can induce parametric failure of LEDs much earlier than their rated lifetime; manufacturer warnings about such conditions should be followed if performance degradation is unacceptable.

Royer, Michael P.; McCullough, Jeffrey J.; Tucker, Joseph C.

2014-12-01T23:59:59.000Z

158

Lumen and Chromaticity Maintenance of LED PAR38 Lamps Operated in Steady-State Conditions  

SciTech Connect (OSTI)

The lumen depreciation and color shift of 38 different lamps (32 LED, 2 CFL, 1 ceramic metal halide [CMH], 3 halogen) were monitored in a specially developed automated long-term test apparatus (ALTA2) for nearly 14,000 hours. Five samples of each lamp model were tested, with measurements recorded on a weekly basis. The lamps were operated continuously at a target ambient temperature between 44°C and 45°C.

Royer, Michael P.

2014-12-01T23:59:59.000Z

159

Power control architectures for cold cathode fluorescent lamp and light emitting diode based light sources.  

E-Print Network [OSTI]

?? In this dissertation, two different energy efficient power supply topologies are introduced for controlling cold cathode fluorescent lamp (CCFL) and high-brightness light emitting diode… (more)

Doshi, Montu V.

2010-01-01T23:59:59.000Z

160

Microwave power spectral density and its effects on exciting electrodeless high intensity discharge lamps  

SciTech Connect (OSTI)

The effects of a microwave source generating a spectrally dense power spectrum on the operation of an electrodeless high intensity discharge lamp were measured. Spectrally pure sources operating within ISM bands at 915 MHz and 2.45 GHz produce stable capacitively coupled discharges useful for producing flicker-free light for numerous applications. The internal plasma temperature distribution and lamp geometry define acoustic resonance modes within the lamp which can be excited with power sidebands. The operation of lamps with commercially available power sources and custom built generators are discussed. Estimates of the spectral purity required for stable operation are provided.

Butler, S.J.; Goss, H.H.; Lapatovich, W.P. [Osram Sylvania Inc., Salem, MA (United States)

1995-12-31T23:59:59.000Z

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


161

LED Linear Lamps and Troffer Lighting: CALiPER Report Series 21  

ScienceCinema (OSTI)

Video about CALiPER Report Series 21 on LED Linear Lamps and Troffer Lighting, featuring interviews with Tracy Beeson and Naomi Miller of Pacific Northwest National Laboratory.

Beeson, Tracy; Miller, Naomi

2014-06-23T23:59:59.000Z

162

LED Linear Lamps and Troffer Lighting: CALiPER Report Series 21  

SciTech Connect (OSTI)

Video about CALiPER Report Series 21 on LED Linear Lamps and Troffer Lighting, featuring interviews with Tracy Beeson and Naomi Miller of Pacific Northwest National Laboratory.

Beeson, Tracy; Miller, Naomi

2014-06-17T23:59:59.000Z

163

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

SciTech Connect (OSTI)

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

Miller, Naomi J.; Rosenfeld, Scott M.

2012-06-22T23:59:59.000Z

164

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

Broader source: Energy.gov [DOE]

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

165

Text-Alternative Version: LED Replacement Lamps: Current Performance and the Latest on ENERGY STAR®  

Broader source: Energy.gov [DOE]

Below is the text-alternative version of the LED Replacement Lamps: Current Performance and the Latest on ENERGY STAR® webcast.

166

Text-Alternative Version: CALiPER Series 21 on LED Linear Lamps and Troffer Lighting  

Broader source: Energy.gov [DOE]

Following is a text version of a video about CALiPER Application Report Series 21 on LED Linear Lamps and Troffer Lighting.

167

Conservation potential of compact fluorescent lamps in India and Brazil  

SciTech Connect (OSTI)

We evaluate the conservation potential of compact fluorescent lamps (CFLs) for managing the rapidly increasing electrical energy and peak demand in India and Brazil. Using very conservative assumptions, we find that the cost of conserved energy using 16 W CFLs is 4 and 6 times less than the long range marginal cost of electricity for the two countries. The cost of avoided peak installed capacity is 6 and 9.5 times less than the cost of new installed capacity for India and Brazil. The analysis is undertaken from the three separate perspectives of the national economies, the consumers, and the utilities. We find that because residential electricity is subsidized, the consumers have little or no incentive to purchase and install the CFLs, unless they too are subsidized. However, the benefits of CFL installation to the utility are so large that subsidizing them is a paying proposition for the utility are so large that subsidizing them is a paying proposition for the utility in almost all cases. As an illustration of a gradual introduction strategy for CFLs, we calculate a scenario where national savings of the order of US $1.2 million per day for India and US $2.5 million per day for Brazil are reached in 10 years by a small and gradual transfer of subsidy from residential electricity to CFLs. We then explore the barriers to immediate large scale introduction of these lamps in the two countries. Specific technical and marketing problems are identified and discussed, which would require solution before such an introduction can be attempted. Lastly, we discuss the range of policy instruments, in addition to a subsidy scheme, that can be used for promoting the diffusion of these lamps in the domestic and commercial sector. 47 refs., 15 figs., 2 tabs.

Gadgil, A.; Martino Jannuzzi, G. de (Lawrence Berkeley Lab., CA (USA); Universidade Estadual de Campinas, SP (Brazil). Faculdade de Engenharia)

1989-07-01T23:59:59.000Z

168

Microwave lamp with multi-purpose rotary motor  

DOE Patents [OSTI]

In a microwave powered electrodeless lamp, a single rotary motor is used to (a) rotate the bulb and (b) provide rotary motion to a blower or pump means for providing cooling fluid to the magnetron and/or to a forced gas cooler for providing cooling gas to the bulb. The blower may consist of only of an impeller without the usual blower housing. The motor, bulb stem and bulb, or motor, bulb stem, bulb and blower may be formed as an integral unit so as to facilitate replacement. 8 figs.

Ury, M.G.; Turner, B.; Wooten, R.D.

1999-02-02T23:59:59.000Z

169

Microwave lamp with multi-purpose rotary motor  

DOE Patents [OSTI]

In a microwave powered electrodeless lamp, a single rotary motor is used to a) rotate the bulb and b) provide rotary motion to a blower or pump means for providing cooling fluid to the magnetron and/or to a forced gas cooling for providing cooler gas to the bulb. The blower may consist of only of an impeller without the usual blower housing. The motor, bulb stem and bulb, or motor, bulb stem, bulb and blower may be formed as an integral unit so as to facilitate replacement.

Ury, Michael G. (Bethesda, MD); Turner, Brian (Myersville, MD); Wooten, Robert D. (Rockville, MD)

1999-01-01T23:59:59.000Z

170

The glass lamps from the 11th-century shipwreck at Serc?e Liman, Turkey: a thesis  

E-Print Network [OSTI]

- SUSPENDED LAMPS ~Pa e 10 11 12 16 18 18 20 29 Type lA- Type 18- Type 1C- Type 1D- Type 1E- Type 1F- Type 1G- Type 1H? The Standard Straight Stemmed Inverted Cup Base Double Pinched Stem Triple Pinched Stem Short Stem No Stem Solid...:1) ? Suspended Lamp without Stem (1:1) - Suspended Lamp with Solid Stem (1:1) of Type Two - Kickbase Standing Lamps (1:1) - Ringbase Standing Lamp (1:1) 37 38 39 40 41 43 44 Illustration LIST OF ILLUSTRATIONS (Cont. ) Pacae 23. Type 3 - Mosque Lamp...

Morden, Margaret Elizabeth

1982-01-01T23:59:59.000Z

171

High Efficiency LED Lamp for Solid-State Lighting  

SciTech Connect (OSTI)

This report contains a summary of technical achievements during a three-year project to demonstrate high efficiency, solid-state lamps based on gallium nitride/silicon carbide light-emitting diodes. Novel chip designs and fabrication processes are described for a new type of nitride light-emitting diode with the potential for very high efficiency. This work resulted in the demonstration of blue light-emitting diodes in the one watt class that achieved up to 495 mW of light output at 350 mA drive current, corresponding to quantum and wall plug efficiencies of 51% and 45%, respectively. When combined with a phosphor in Cree's 7090 XLamp package, these advanced blue-emitting devices resulted in white light-emitting diodes whose efficacy exceeded 85 lumens per watt. In addition, up to 1040 lumens at greater than 85 lumens per watt was achieved by combining multiple devices to make a compact white lamp module with high optical efficiency.

James Ibbetson

2006-12-31T23:59:59.000Z

172

J.-A. FLEMING. 2014 On the characteristic curves and surfaces of incandescence lamps (Courbes caractristiques des lampes incandescence) ; Phil. Mag.,  

E-Print Network [OSTI]

80 J.-A. FLEMING. 2014 On the characteristic curves and surfaces of incandescence lamps (Courbes caractéristiques des lampes à incandescence) ; Phil. Mag., 5e série, t. XIX, p. 368; I885. L'auteur étudie les résistance correspondant à la force électromotrice vo à laquelle l'incandescence commence à se produire, et r

Paris-Sud XI, Université de

173

The evolving price of household LED lamps: Recent trends and historical comparisons for the US market  

SciTech Connect (OSTI)

In recent years, household LED light bulbs (LED A lamps) have undergone a dramatic price decline. Since late 2011, we have been collecting data, on a weekly basis, for retail offerings of LED A lamps on the Internet. The resulting data set allows us to track the recent price decline in detail. LED A lamp prices declined roughly exponentially with time in 2011-2014, with decline rates of 28percent to 44percent per year depending on lumen output, and with higher-lumen lamps exhibiting more rapid price declines. By combining the Internet price data with publicly available lamp shipments indices for the US market, it is also possible to correlate LED A lamp prices against cumulative production, yielding an experience curve for LED A lamps. In 2012-2013, LED A lamp prices declined by 20-25percent for each doubling in cumulative shipments. Similar analysis of historical data for other lighting technologies reveals that LED prices have fallen significantly more rapidly with cumulative production than did their technological predecessors, which exhibited a historical decline of 14-15percent per doubling of production.

Gerke, Brian F.; Ngo, Allison T.; Alstone, Andrea L.; Fisseha, Kibret S.

2014-10-14T23:59:59.000Z

174

Spectral irradiance model for tungsten halogen lamps in 340-850 nm wavelength range  

SciTech Connect (OSTI)

We have developed a physical model for the spectral irradiance of 1 kW tungsten halogen incandescent lamps for the wavelength range 340-850 nm. The model consists of the Planck's radiation law, published values for the emissivity of tungsten, and a residual spectral correction function taking into account unknown factors of the lamp. The correction function was determined by measuring the spectra of a 1000 W, quartz-halogen, tungsten coiled filament (FEL) lamp at different temperatures. The new model was tested with lamps of types FEL and 1000 W, 120 V quartz halogen (DXW). Comparisons with measurements of two national standards laboratories indicate that the model can account for the spectral irradiance values of lamps with an agreement better than 1% throughout the spectral region studied. We further demonstrate that the spectral irradiance of a lamp can be predicted with an expanded uncertainty of 2.6% if the color temperature and illuminance values for the lamp are known with expanded uncertainties of 20 K and 2%, respectively. In addition, it is suggested that the spectral irradiance may be derived from resistance measurements of the filament with lamp on and off.

Ojanen, Maija; Kaerhae, Petri; Ikonen, Erkki

2010-02-10T23:59:59.000Z

175

CALiPER Report 20.3: Robustness of LED PAR38 Lamps  

SciTech Connect (OSTI)

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

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

2014-12-31T23:59:59.000Z

176

Table lamp with dynamically controlled lighting distribution and uniformly illuminated luminous shade  

DOE Patents [OSTI]

A double lamp table or floor lamp lighting system has a pair of compact fluorescent lamps (CFLs) or other lamps arranged vertically, i.e. one lamp above the other, with a reflective septum in between. By selectively turning on one or both of the CFLs, down lighting, up lighting, or both up and down lighting is produced. The control system can also vary the light intensity from each CFL. The reflective septum ensures that almost all the light produced by each lamp will be directed into the desired light distribution pattern which is selected and easily changed by the user. In a particular configuration, the reflective septum is bowl shaped, with the upper CFL sitting in the bowl, and a luminous shade hanging down from the bowl. The lower CFL provides both task lighting and uniform shade luminance. Planar compact fluorescent lamps, e.g. circular CFLs, particularly oriented horizontally, are preferable. CFLs provide energy efficiency. However, other types of lamps, including incandescent, halogen, and LEDs can also be used in the fixture. The lighting system may be designed for the home, hospitality, office or other environments.

Siminovitch, Michael J. (Pinole, CA); Page, Erik R. (Berkeley, CA)

2002-01-01T23:59:59.000Z

177

Spatial and time-dependent distribution of plasma parameters in the metal-halide arc lamp.  

E-Print Network [OSTI]

Spatial and time-dependent distribution of plasma parameters in the metal-halide arc lamp. A. Khakhaev, L. Luizova, K. Ekimov and A. Soloviev Petrozavodsk State University, Russia The metal-halide arc lamp is an effective light source and its investigation has a long history, but even at present some

Paris-Sud XI, Université de

178

A light diet for a giant appetite: An assessment of China's proposed fluorescent lamp standard  

SciTech Connect (OSTI)

Lighting has been one of the fastest growing electric end-uses in China over the last twenty years, with an average annual growth rate of 14%. Fluorescent lighting provides a significant portion of China's lighting need. In 1998, China produced 680 million fluorescent lamps, of which 420 million were linear fluorescent lamps of various diameters (T8 to T12). There are substantial variations both in energy efficiency and lighting performance among locally produced fluorescent lamps. Such variations present a perfect opportunity for policy intervention through efficiency standards to promote the adoption of more efficient fluorescent lamps in China. This paper analyzes China's proposed minimum efficiency standard for fluorescent lamps and presents an assessment of its likely impacts on China's lighting energy consumption and GHG emissions.

Lin, Jiang

2002-04-11T23:59:59.000Z

179

Energy Conservation Program: Data Collection and Comparison with Forecasted Unit Sales for Five Lamp Types, Notice of Data Availability  

Broader source: Energy.gov [DOE]

Energy Conservation Program: Data Collection and Comparison with Forecasted Unit Sales for Five Lamp Types, Notice of Data Availability

180

190 IEEE TRANSACTIONS ON PLASMA SCIENCE, VOL. 30, NO. 1, FEBRUARY 2002 Gap Closure in a Cold Metal Halide Lamp  

E-Print Network [OSTI]

lamp has been investigated using a two-dimensional, plasma transport model. Im- ages are presented- charge devices, lighting, plasma applications. METAL halide high-intensity-discharge (HID) lamps op- erate as high-pressure thermal arcs [1]. The cold fills of HID lamps are typically 50­100 torr of a rare

Kushner, Mark

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


181

Bottom-Up Energy Analysis System - Methodology and Results  

E-Print Network [OSTI]

Documents U.S. Rulemaking Documents TSL 4 PHP IncandescentLamps Incandescent Lamps Fluorescent Lamp Ballasts kWh/yrand T5 fluorescent tubes, incandescent lamps, CFLs, Halogen

McNeil, Michael A.

2013-01-01T23:59:59.000Z

182

DSM Electricity Savings Potential in the Buildings Sector in APP Countries  

E-Print Network [OSTI]

150 million compact fluorescent light bulbs in 2010. (ChinaCleaners Incandescent Bulbs Fluorescent Lamps Ballasts forincandescent bulbs with compact fluorescent lamps. Consumers

McNeil, MIchael

2011-01-01T23:59:59.000Z

183

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

Office of Environmental Management (EM)

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

184

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

SciTech Connect (OSTI)

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

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

2013-10-01T23:59:59.000Z

185

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

E-Print Network [OSTI]

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

McNeil, Michael A.

2012-01-01T23:59:59.000Z

186

Recovery of yttrium from cathode ray tubes and lamps’ fluorescent powders: experimental results and economic simulation  

SciTech Connect (OSTI)

Highlights: • Fluorescent powder of lamps. • Fluorescent powder of cathode ray rubes. • Recovery of yttrium from fluorescent powders. • Economic simulation for the processes to recover yttrium from WEEE. - Abstract: In this paper, yttrium recovery from fluorescent powder of lamps and cathode ray tubes (CRTs) is described. The process for treating these materials includes the following: (a) acid leaching, (b) purification of the leach liquors using sodium hydroxide and sodium sulfide, (c) precipitation of yttrium using oxalic acid, and (d) calcinations of oxalates for production of yttrium oxides. Experimental results have shown that process conditions necessary to purify the solutions and recover yttrium strongly depend on composition of the leach liquor, in other words, whether the powder comes from treatment of CRTs or lamp. In the optimal experimental conditions, the recoveries of yttrium oxide are about 95%, 55%, and 65% for CRT, lamps, and CRT/lamp mixture (called MIX) powders, respectively. The lower yields obtained during treatments of MIX and lamp powders are probably due to the co-precipitation of yttrium together with other metals contained in the lamps powder only. Yttrium loss can be reduced to minimum changing the experimental conditions with respect to the case of the CRT process. In any case, the purity of final products from CRT, lamps, and MIX is greater than 95%. Moreover, the possibility to treat simultaneously both CRT and lamp powders is very important and interesting from an industrial point of view since it could be possible to run a single plant treating fluorescent powder coming from two different electronic wastes.

Innocenzi, V., E-mail: valentina.innocenzi1@univaq.it; De Michelis, I.; Ferella, F.; Vegliň, F.

2013-11-15T23:59:59.000Z

187

Note: Hollow cathode lamp with integral, high optical efficiency isolation valve: A modular vacuum ultraviolet source  

SciTech Connect (OSTI)

The design and operating conditions of a hollow cathode discharge lamp for the generation of vacuum ultraviolet radiation, suitable for ultrahigh vacuum (UHV) application, are described in detail. The design is easily constructed, and modular, allowing it to be adapted to different experimental requirements. A thin isolation valve is built into one of the differential pumping stages, isolating the discharge section from the UHV section, both for vacuum safety and to allow lamp maintenance without venting the UHV chamber. The lamp has been used both for ultraviolet photoelectron spectroscopy of surfaces and as a “soft” photoionization source for gas-phase mass spectrometry.

Sloan Roberts, F.; Anderson, Scott L. [Department of Chemistry, University of Utah, 315 S. 1400 E., Salt Lake City, Utah 84112 (United States)] [Department of Chemistry, University of Utah, 315 S. 1400 E., Salt Lake City, Utah 84112 (United States)

2013-12-15T23:59:59.000Z

188

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

DOE Patents [OSTI]

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

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

1999-01-01T23:59:59.000Z

189

ISSUANCE 2015-01-26: Energy Conservation Program: Energy Conservation Standards for High-Intensity Lamps, Notice to Reopen Comment Period  

Broader source: Energy.gov [DOE]

Energy Conservation Program: Energy Conservation Standards for High-Intensity Lamps, Notice to Reopen Comment Period

190

General Technical Base Qualification Standard  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:YearRound-UpHeatMulti-Dimensional Subject: Guidance for naturalGeneral Service LED Lamps SENSITIVE

191

LED Linear Lamps and Troffer Lighting: CALiPER Report Series 21  

Broader source: Energy.gov [DOE]

View the video about CALiPER Report Series 21 on LED Linear Lamps and Troffer Lighting, featuring interviews with Tracy Beeson and Naomi Miller of Pacific Northwest National Laboratory.

192

Text-Alternative Version: CALiPER Report Series 20 on LED PAR38 Lamps  

Broader source: Energy.gov [DOE]

Michael Royer, Lighting Engineer, Pacific Northwest National Laboratory: The CALiPER program looks at typical LED lamp performance attributes. As we've gone through the progression of reports, we...

193

E-Print Network 3.0 - arc discharge lamp Sample Search Results  

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

9, SEPTEMBER 2008 Digital Control of a Low-Frequency Square-Wave Summary: of the arc tube, gas pressure, and its composition, and they may vary with the lamp aging. The...

194

Integrated starting and running amalgam assembly for an electrodeless fluorescent lamp  

DOE Patents [OSTI]

An integrated starting and running amalgam assembly for an electrodeless SEF fluorescent lamp includes a wire mesh amalgam support constructed to jointly optimize positions of a starting amalgam and a running amalgam in the lamp, thereby optimizing mercury vapor pressure in the lamp during both starting and steady-state operation in order to rapidly achieve and maintain high light output. The wire mesh amalgam support is constructed to support the starting amalgam toward one end thereof and the running amalgam toward the other end thereof, and the wire mesh is rolled for friction-fitting within the exhaust tube of the lamp. The positions of the starting and running amalgams on the wire mesh are jointly optimized such that high light output is achieved quickly and maintained, while avoiding any significant reduction in light output between starting and running operation.

Borowiec, Joseph Christopher (Schenectady, NY); Cocoma, John Paul (Clifton Park, NY); Roberts, Victor David (Burnt Hills, NY)

1998-01-01T23:59:59.000Z

195

2014-10-14 Issuance: Test Procedures Correction for Fluorescent Lamp  

Energy Savers [EERE]

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious RankCombustionImprovement3 Beryllium-Associated Worker2014 HouseCoveredAir Conditioners andBallasts; Notice

196

Comparison of different light lamps for collecting diptera associated with livestock concentration areas  

E-Print Network [OSTI]

COMPARISON OF' DIFFERENT LIGHT LAMPS FOR COLLECTING DIPTERA ASSOCIATED WITH LIVESTOCK CONCENTRATION AREAS A Thesis by CHARLES WAYNE NEEB Submitted to the Graduate College of Texas ASM University in partial fulfillment of the requirement... for the degree of MASTER OF SCIENCE August, 1971 Major Subject: Entomology COMPARISON OF DIFFERENT LIGHT LAMPS FOR COLLECTING DIPTERA ASSOCIATED WITH LIVESTOCK CONCENTRATION AREAS A Thesis by CHARLES WAYNE NEEB Approved as to style and content by...

Neeb, Charles W

1971-01-01T23:59:59.000Z

197

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

E-Print Network [OSTI]

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

Boyer, Edmond

198

Demonstration of LED Retrofit Lamps at the Jordan Schnitzer Museum of Art  

SciTech Connect (OSTI)

The Jordan Schnitzer Museum of Art in Eugene, Oregon, houses a remarkable permanent collection of Asian art and antiquities, modern art, and sculpture, and also hosts traveling exhibitions. In the winter and spring of 2011, a series of digital photographs by artist Chris Jordan, titled "Running the Numbers," was exhibited in the Coeta and Donald Barker Special Exhibitions Gallery. These works graphically illustrate waste (energy, money, health, consumer objects, etc.) in contemporary culture. The Bonneville Power Administration and the Eugene Water and Electricity Board provided a set of Cree 12W light-emitting diode (LED) PAR38 replacement lamps (Cree LRP38) for the museum to test for accent lighting in lieu of their standard Sylvania 90W PAR38 130V Narrow Flood lamps (which draw 78.9W at 120V). At the same time, the museum tested LED replacement lamps from three other manufacturers, and chose the Cree lamp as the most versatile and most appropriate color product for this exhibit. The lamps were installed for the opening of the show in January 2011. This report describes the process for the demonstration, the energy and economic results, and results of a survey of the museum staff and gallery visitors on four similar clusters of art lighted separately by four PAR38 lamps.

Miller, Naomi J.

2011-09-01T23:59:59.000Z

199

Observed Minimum Illuminance Threshold for Night Market Vendors in Kenya who use LED Lamps  

SciTech Connect (OSTI)

Creation of light for work, socializing, and general illumination is a fundamental application of technology around the world. For those who lack access to electricity, an emerging and diverse range of LED based lighting products hold promise for replacing and/or augmenting their current fuel-based lighting sources that are costly and dirty. Along with analysis of environmental factors, economic models for total cost-ofownership of LED lighting products are an important tool for studying the impacts of these products as they emerge in markets of developing countries. One important metric in those models is the minimum illuminance demanded by end-users for a given task before recharging the lamp or replacing batteries. It impacts the lighting service cost per unit time if charging is done with purchased electricity, batteries, or charging services. The concept is illustrated in figure 1: LED lighting products are generally brightest immediately after the battery is charged or replaced and the illuminance degrades as the battery is discharged. When a minimum threshold level of illuminance is reached, the operational time for the battery charge cycle is over. The cost to recharge depends on the method utilized; these include charging at a shop at a fixed price per charge, charging on personal grid connections, using solar chargers, and purchasing dry cell batteries. This Research Note reports on the observed"charge-triggering" illuminance level threshold for night market vendors who use LED lighting products to provide general and task oriented illumination. All the study participants charged with AC power, either at a fixed-price charge shop or with electricity at their home.

Johnstone, Peter; Jacobson, Arne; Mills, Evan; Radecsky, Kristen

2009-03-21T23:59:59.000Z

200

2004 35thAnnual IEEE Power Electronics SpecialistsConference Aachen, Germany. 2004 Digital Controller Design for Electronic Ballasts with Phase Control  

E-Print Network [OSTI]

2004 35thAnnual IEEE Power Electronics SpecialistsConference Aachen, Germany. 2004 Digital Controller Design for Electronic Ballasts with Phase Control Yan Yin and Regan Zane Colorado Power Electronics Center University of Colorado at Boulder Boulder, CO 80309-0425 yiny@colorado.edu, zane

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


201

Control of low-frequency square-wave electronic ballast with resonant ignition using a dsPIC30F2010  

E-Print Network [OSTI]

, theoretically, is a solution to prevent the acoustic resonance provided that the lamp power has no ac component igniter is an external circuit that is coupled to the main power stage by a transformer. In [5 for two-stage HID lamps. The first stage is the power factor correction (PFC) stage, and the second

202

Energy-Efficient, High-Color-Rendering LED Lamps Using Oxyfluoride and Fluoride Phosphors  

SciTech Connect (OSTI)

LED lamps using phosphor downconversion can be designed to replace incandescent or halogen sources with a 'warm-white' correlated color temperature (CCT) of 2700-3200 K and a color rendering index (CRI) greater than 90. However, these lamps have efficacies of {approx}70% of standard 'cool-white' LED packages (CCT = 4500-6000 K; CRI = 75-80). In this report, we describe structural and luminescence properties of fluoride and oxyfluoride phosphors, specifically a (Sr,Ca){sub 3}(Al,Si)O{sub 4}(F,O):Ce{sup 3+} yellow-green phosphor and a K{sub 2}TiF{sub 6}:Mn{sup 4+} red phosphor, that can reduce this gap and therefore meet the spectral and efficiency requirements for high-efficacy LED lighting. LED lamps with a warm-white color temperature (3088 K), high CRI (90), and an efficacy of {approx}82 lm/W are demonstrated using these phosphors. This efficacy is {approx}85% of comparable cool-white lamps using typical Y{sub 3}Al{sub 5}O{sub 12}:Ce{sup 3+}-based phosphors, significantly reducing the efficacy gap between warm-white and cool-white LED lamps that use phosphor downconversion.

Setlur, A.; Radkov, E; Henderson, C; Her, J; Srivastava, A; Karkada, N; Kishore, M; Kumar, N; Aesram, D; et al.

2010-01-01T23:59:59.000Z

203

An In-Situ Photometric and Energy Analysis of a Sulfur LampLighting System  

SciTech Connect (OSTI)

This paper describes the results of a photometric and energy analysis that was conducted on a new light guide and sulfur lamp system recently installed at the U.S. Department of Energy's Forrestal Building. This novel system couples two high lumen output, high efficiency sulfur lamps to a single 73 m (240 ft.) hollow light guide lined with a reflective prismatic film. The system lights a large roadway and plaza area that lies beneath a section of the building. It has been designed to completely replace the grid of 280 mercury vapor lamps formerly used to light the space. This paper details the results of a field study that characterizes the significant energy savings and increased illumination levels that have been achieved. Comparisons to modeled HID lighting scenarios are also included.

Crawford, Doug; Gould, Carl; Packer, Michael; Rubinstein,Francis; Siminovitch, Michael

1995-06-01T23:59:59.000Z

204

Plasma spectroscopic study of an electrodeless HID lamp containing Tl and Zn  

SciTech Connect (OSTI)

Recently the electrodeless HID lamps excited by microwaves have been studied intensively. Tl is well known as a material having strong green emission lines. In this study, Tl spectra excited by microwaves were reported in the cases of Tl only and Tl + Zn. Using the Elenbaas`s method of high pressure Hg lamp, the cause of Tl continuous spectrum was examined. From the ratio of radiative intensities of two lines, an average arc temperature in the bulb was estimated. Then excitation level of the continuous emission spectrum near the 600nm wavelength was calculated from the dependence of the radiative intensities on these arc temperatures.

Takeda, Mamoru; Horii, Shigeru; Hochi, Akira [Matsushita Electric Industrial Co., Ltd., Kyoto (Japan). Lighting Research Lab.

1996-12-31T23:59:59.000Z

205

Issues In the Design and Specification of Class Libraries Gregor Kiczales and John Lamping  

E-Print Network [OSTI]

Introduction Object-oriented programming has been praised for many virtues, of which we believe code reuse that require their sort of functionality, we can reuse the library rather than having to code again from; Gregor@parc.xerox.com, Lamping@parc.xerox.com. c 1992 Association of Computing Machinery. Permission

206

RG: A Case-Study for Aspect-Oriented Programming Anurag Mendhekar, Gregor Kiczales, John Lamping  

E-Print Network [OSTI]

to be sprinkled throughout the code, resulting in code that tangled the various performance issues along 3333 Coyote Hill Road, Palo Alto, CA 94304, USA. {anurag,gregor,lamping}@parc.xerox.com #12;22 Aspect-cutting issues. In AOP, code relating to cross-cutting issues, called aspects, can be written in a way that need

207

What A Metaobject Protocol Based Compiler Can Do For Lisp Gregor Kiczales, John Lamping, Anurag Mendhekar  

E-Print Network [OSTI]

Mendhekar Xerox PARC Internal Report, December 1993. © Copyright 1993 Xerox Corporation. All rights reserved allows programmers to cleanly, concisely and portably code the following examples, and have them work Hill Rd., Palo Alto, CA 94304; (415)812-4888; Gregor--Lamping@parc.xerox.com. 1 #12;Internal Memo -- c

208

Predicted Pulsed-Power/Flash-Lamp Performance of the NIF Main Amplifier  

SciTech Connect (OSTI)

The laser glass for the National Ignition Facility (NIF) Main Amplifier system is pumped by a system of 192 pulsed power/flash lamp assemblies. Each of these 192 assemblies consists of a 1.6 MJ (nominal) capacitor bank working with a Pre-Ionization/Lamp Check (PILC) pulser to drive an array of 40 flash lamps. This paper describes the predicted performance of these Power Conditioning System (PCS) modules in concert with flashlamp assemblies in NIF. Each flashlamp assembly consists of 20 parallel sets of lamps in series pairs. The sensitivity of system performance to various design parameters of the PILC pulser and the main capacitor bank is described. Results of circuit models are compared to sub-scale flashlamp tests and to measurements taken in tests of a PCS module driving a flashlamp assembly in the First Article NIF Test Module facility at Sandia National Laboratories. Also included are predictions from a physics-based, semi-empirical amplifier gain code.

Fulkerson, E. Steven; Hammond, Jud; Harjes, Henry C.; Moore, William B.S.; Smith, David L.; Wilson, J. Michael

1999-06-22T23:59:59.000Z

209

Method and apparatus for powering an electrodeless lamp with reduced radio frequency interference  

DOE Patents [OSTI]

An electrodeless lamp waveguide structure includes tuned absorbers for spurious RF signals. A lamp waveguide with an integral frequency selective attenuation includes resonant absorbers positioned within the waveguide to absorb spurious out-of-band RF energy. The absorbers have a negligible effect on energy at the selected frequency used to excite plasma in the lamp. In a first embodiment, one or more thin slabs of lossy magnetic material are affixed to the sidewalls of the waveguide at approximately one quarter wavelength of the spurious signal from an end wall of the waveguide. The positioning of the lossy material optimizes absorption of power from the spurious signal. In a second embodiment, one or more thin slabs of lossy magnetic material are used in conjunction with band rejection waveguide filter elements. In a third embodiment, one or more microstrip filter elements are tuned to the frequency of the spurious signal and positioned within the waveguide to couple and absorb the spurious signal's energy. All three embodiments absorb negligible energy at the selected frequency and so do not significantly diminish the energy efficiency of the lamp.

Simpson, James E. (Gaithersburg, MD)

1999-01-01T23:59:59.000Z

210

Method and apparatus for powering an electrodeless lamp with reduced radio frequency interference  

DOE Patents [OSTI]

An electrodeless lamp waveguide structure includes tuned absorbers for spurious RF signals. A lamp waveguide with an integral frequency selective attenuation includes resonant absorbers positioned within the waveguide to absorb spurious out-of-band RF energy. The absorbers have a negligible effect on energy at the selected frequency used to excite plasma in the lamp. In a first embodiment, one or more thin slabs of lossy magnetic material are affixed to the sidewalls of the waveguide at approximately one quarter wavelength of the spurious signal from an end wall of the waveguide. The positioning of the lossy material optimizes absorption of power from the spurious signal. In a second embodiment, one or more thin slabs of lossy magnetic material are used in conjunction with band rejection waveguide filter elements. In a third embodiment, one or more microstrip filter elements are tuned to the frequency of the spurious signal and positioned within the waveguide to couple and absorb the spurious signal's energy. All three embodiments absorb negligible energy at the selected frequency and so do not significantly diminish the energy efficiency of the lamp. 18 figs.

Simpson, J.E.

1999-06-08T23:59:59.000Z

211

15 KJ FLASH LAMP, POWER CONDITIONING UNIT DESIGNED FOR SAFTY, RELIABILITY & MANUFACTURABILITY*  

SciTech Connect (OSTI)

A 15kJoule, Flash Lamp Power Conditioning Unit has been successfully designed, developed, and deployed in the National Ignition Facility (NIF) Preamplifier Modules (PAM). The primary design philosophy of this power conditioning unit (PCU) is safety, reliability, and manufacturability. Cost reduction over commercially equivalent systems was also achieved through an easily manufactured packaging design optimized to meet NIF requirements. While still maintaining low cost, the PCU design includes a robust control system, fault diagnostic system, and safety features. The pulsed power design includes 6 PFN modules, each including a dual series injection trigger transformer, that drive a total of 12 flash lamp loads. The lamps are individually triggered via a 20kV pulse produced by a 1kV, MCT switched capacitive discharge unit on the primary side of the trigger transformer. The remote control interface includes an embedded controller that captures flash lamp current wave forms and fault status for each shot. The embedded controller provides the flexibility of remotely adjusting both the main drive voltage from 1.6 to 2.5 kV and the trigger voltage from 0 to 20 kV.

James, G; Merritt, B; Dreifuerst, G; Strickland, S

2007-08-07T23:59:59.000Z

212

Demonstration Of A Monitoring Lamp To Visualize The Energy Consumption In Houses  

E-Print Network [OSTI]

the sources of consumption. Automated monitoring of the electricity consumption in a house is quite a recent or numbers, but simply alert residents that something relevant to their electricity consumption is chang- ingDemonstration Of A Monitoring Lamp To Visualize The Energy Consumption In Houses Christophe Gisler1

Paris-Sud XI, Université de

213

Photocatalytic reactions in a microwave field using an electrodeless discharge lamp Abstract SHIMADZU 2008  

E-Print Network [OSTI]

to assist photochemical and photocatalytic reactions for degradation of organic pollutants [1]. As a source. The absorption edge of TiO2 was detected by UV-Vis spectrophotometer. Specific surface area was determined from was evaluated by degradation of mono-chloroacetic acid using Hg-EDL. Spectral measurements of prepared lamps

Cirkva, Vladimir

214

The Electrodeless Discharge Lamps Coated with the Titania Thin Film for Photocatalysis in a Microwave Field  

E-Print Network [OSTI]

photochemical and photocatalytic reactions for degradation of organic pollutants. The electrodeless discharge lamp (EDL) generates UV/VIS radiation when placed into the microwave field and is connected to the objective of microwave photochemistry [1]. The degradation of mono-chloroacetic acid (MCAA) by microwave

Cirkva, Vladimir

215

Issues, Models and Solutions for Triac Modulated Phase Dimming of LED Lamps  

E-Print Network [OSTI]

greater than incandescent lamps [1,2]. In fact, recent technological breakthroughs [3-7] in the high of LED lighting: An incandescent source produces 10 ­ 20 lumens/watt, while several manufacturers have? Incandescent bulbs primarily utilize phase modulating dimming through triac switches to control the power sent

Lehman, Brad

216

Method for removal of phosgene from boron trichloride. [DOE patent application; mercury arc lamp  

DOE Patents [OSTI]

Selective ultraviolet photolysis using an unfiltered mercury arc lamp has been used to substantially reduce the phosgene impurity in a mixture of boron trichloride and phosgene. Infrared spectrophotometric analysis of the sample before and after irradiation shows that it is possible to highly purify commercially available boron trichloride with this method.

Freund, S.M.

1981-09-03T23:59:59.000Z

217

RF driven sulfur lamp having driving electrodes which face each other  

DOE Patents [OSTI]

A high intensity discharge lamp without mercury is disclosed radiating a selected spectrum of which can be almost entirely in the visible range from an envelope that contains a sulfur containing substance. The lamp utilizes a signal source that generates an excitation signal that is externally coupled to the exterior surface of the envelope to excite the enclosed sulfur containing substance. Various embodiments of the lamp use electrodes adjacent the envelope to couple the excitation signal thereto with the face of the electrodes shaped to complement the shape of the exterior surface of the envelope. Two shapes discussed are spherical and cylindrical. To minimize filamentary discharges each envelope may include an elongated stem affixed to the exterior thereof whereby a rotational subsystem spins the envelope. In yet another embodiment the envelope has a Dewar configuration with two electrodes, one positioned near the external curved side surface of the body, and a second to the inner surface of the hole through the envelope. Further, the envelope may contain a backfill of a selected inert gas to assist in the excitation of lamp with that backfill at a pressure of less than 1 atmosphere, wherein the backfill pressure is directly related to the increase or decrease of peak output and inversely related to the increase and decrease of the emitted spectrum from the envelope. The emitting fill can be less than 6 mg/cc, or at least 2 mg/cc of the envelope of a sulfur containing substance. 17 figs.

Gabor, G.; Orr, T.R.; Greene, C.M.; Crawford, D.G.; Berman, S.M.

1999-06-22T23:59:59.000Z

218

Hands On Science with NOAA TITLE: Plate Tectonics and Lava Lamps  

E-Print Network [OSTI]

and geological events?" Answer = heat from radioactive decay · Compare the light bulb in lava to Earth's internal in the lava lamp. · Plot recent earthquakes and volcanic activity on a world map and compare to the location.education.noaa.gov/Ocean_and_Coasts/Ocean_Floor_Features.html USGS Earthquake Hazards - http

219

Stress Testing of the Philips 60W Replacement Lamp L Prize Entry  

SciTech Connect (OSTI)

The Pacific Northwest National Laboratory, operated by Battelle for the U.S. Department of Energy, worked with Intertek to develop a procedure for stress testing medium screw-base light sources. This procedure, composed of alternating stress cycles and performance evaluation, was used to qualitatively compare and contrast the durability and reliability of the Philips 60W replacement lamp L Prize entry with market-proven compact fluorescent lamps (CFLs) with comparable light output and functionality. The stress cycles applied simultaneous combinations of electrical, thermal, vibration, and humidity stresses of increasing magnitude. Performance evaluations measured relative illuminance, x chromaticity and y chromaticity shifts after each stress cycle. The Philips L Prize entry lamps appear to be appreciably more durable than the incumbent energy-efficient technology, as represented by the evaluated CFLs, and with respect to the applied stresses. Through the course of testing, all 15 CFL samples permanently ceased to function as a result of the applied stresses, while only 1 Philips L Prize entry lamp exhibited a failure, the nature of which was minor, non-destructive, and a consequence of a known (and resolved) subcontractor issue. Given that current CFL technology appears to be moderately mature and no Philips L Prize entry failures could be produced within the stress envelope causing 100 percent failure of the benchmark CFLs, it seems that, in this particular implementation, light-emitting diode (LED) technology would be much more durable in the field than current CFL technology. However, the Philips L Prize entry lamps used for testing were carefully designed and built for the competition, while the benchmark CFLs were mass produced for retail sale—a distinction that should be taken into consideration. Further reliability testing on final production samples would be necessary to judge the extent to which the results of this analysis apply to production versions of the Philips L Prize entry.

Poplawski, Michael E.; Ledbetter, Marc R.; Smith, Mark

2012-04-24T23:59:59.000Z

220

General Services Administration Photovoltaics Project in Sacramento,  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:YearRound-UpHeatMulti-Dimensional Subject: Guidance for naturalGeneral Service LED Lamps

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


221

The Carbon-Land Model Intercomparison Project (C-LAMP): A Model-Data Comparison System for Evaluation of Coupled Biosphere-Atmosphere Models  

SciTech Connect (OSTI)

The need to capture important climate feebacks in general circulation models (GCMs) has resulted in new efforts to include atmospheric chemistry and land and ocean biogeochemistry into the next generation of production climate models, now often referred to as Earth System Models (ESMs). While many terrestrial and ocean carbon models have been coupled to GCMs, recent work has shown that such models can yield a wide range of results, suggesting that a more rigorous set of offline and partially coupled experiments, along with detailed analyses of processes and comparisons with measurements, are warranted. The Carbon-Land Model Intercomparison Project (C-LAMP) provides a simulation protocol and model performance metrics based upon comparisons against best-available satellite- and ground-based measurements (Hoffman et al., 2007). C-LAMP provides feedback to the modeling community regarding model improvements and to the measurement community by suggesting new observational campaigns. C-LAMP Experiment 1 consists of a set of uncoupled simulations of terrestrial carbon models specifically designed to examine the ability of the models to reproduce surface carbon and energy fluxes at multiple sites and to exhibit the influence of climate variability, prescribed atmospheric carbon dioxide (CO{sub 2}), nitrogen (N) deposition, and land cover change on projections of terrestrial carbon fluxes during the 20th century. Experiment 2 consists of partially coupled simulations of the terrestrial carbon model with an active atmosphere model exchanging energy and moisture fluxes. In all experiments, atmospheric CO{sub 2} follows the prescribed historical trajectory from C{sup 4}MIP. In Experiment 2, the atmosphere model is forced with prescribed sea surface temperatures (SSTs) and corresponding sea ice concentrations from the Hadley Centre; prescribed CO{sub 2} is radiatively active; and land, fossil fuel, and ocean CO{sub 2} fluxes are advected by the model. Both sets of experiments have been performed using two different terrestrial biogeochemistry modules coupled to the Community Land Model version 3 (CLM3) in the Community Climate System Model version 3 (CCSM3): The CASA model of Fung, et al., and the carbon-nitrogen (CN) model of Thornton. Comparisons against Ameriflus site measurements, MODIS satellite observations, NOAA flask records, TRANSCOM inversions, and Free Air CO{sub 2} Enrichment (FACE) site measurements, and other datasets have been performed and are described in Randerson et al. (2009). The C-LAMP diagnostics package was used to validate improvements to CASA and CN for use in the next generation model, CLM4. It is hoped that this effort will serve as a prototype for an international carbon-cycle model benchmarking activity for models being used for the Inter-governmental Panel on Climate Change (IPCC) Fifth Assessment Report. More information about C-LAMP, the experimental protocol, performance metrics, output standards, and model-data comparisons from the CLM3-CASA and CLM3-CN models are available at http://www.climatemodeling.org/c-lamp.

Hoffman, Forrest M [ORNL; Randerson, Jim [University of California, Irvine; Thornton, Peter E [ORNL; Mahowald, Natalie [Cornell University; Bonan, Gordon [National Center for Atmospheric Research (NCAR); Running, Steven [University of Montana, Missoula; Fung, Inez [University of California, Berkeley

2009-01-01T23:59:59.000Z

222

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

E-Print Network [OSTI]

Lamps in Texas Description Value Reference Total Housing Units in Texas in 2013: 10,204,056 Real Estate Center, Texas A&M University3, U.S. Census Bureau4 5 Average Lighting Electricity Usage per House: 1,946 kWh/yr NREL Building America Program6... Savings in Texas: 10,424,973 MWh/yr OSD CFL Savings in Texas: 28,562 MWh/day By 2013, it is estimated that total savings of 10,424,973 MWh/yr would be achieved from replacing incandescent lamps with compact fluorescent lamps (CFL) in residential...

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

223

Medium Base Compact Fluorescent Lamps | Department of Energy  

Energy Savers [EERE]

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Office of Inspector General Office0-72.pdfGeorgeDoesn't32 Master EM Project Definitionof

224

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

Broader source: Energy.gov [DOE]

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

225

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

DOE Patents [OSTI]

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.

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

2014-11-11T23:59:59.000Z

226

Treatability study for removal of leachable mercury in crushed fluorescent lamps  

SciTech Connect (OSTI)

Nonserviceable fluorescent lamps removed from radiological control areas at the Oak Ridge Department of Energy facilities have been crushed and are currently managed as mixed waste (hazardous and radiologically contaminated). We present proposed treatment flowsheets and supporting treatability study data for conditioning this solid waste residue so that it can qualify for disposal in a sanitary landfill. Mercury in spent fluorescent lamps occurs primarily as condensate on high-surface-area phosphor material. It can be solubilized with excess oxidants (e.g., hypochlorite solution) and stabilized by complexation with halide ions. Soluble mercury in dechlorinated saline solution is effectively removed by cementation with zero-valent iron in the form of steel wool. In packed column dynamic flow testing, soluble mercury was reduced to mercury metal and insoluble calomel, loading > 1.2 g of mercury per grain of steel wool before an appreciable breakthrough of soluble mercury in the effluent.

Bostick, W.D.; Beck, D.E.; Bowser, K.T. [and others

1996-02-01T23:59:59.000Z

227

Creating markets for new products to replace incandescent lamps: The international experience  

SciTech Connect (OSTI)

Since the summer of 1995, several organizations have been in pursuit of what many consider the Holy Grail of lighting technology--a low-cost, drop-in, energy-efficient replacement for the incandescent lamp. This paper summarizes the international experience in attempting to catalyze the commercialization of a mass-market, replacement product that could have major impact on residential lighting energy consumption in US and EU homes. The technology procurement effort was originally spearheaded by US Federal Government through a loose collaboration between the Department of Defense (DoD), the Environmental Protection Agency (EPA) and the Department of Energy (DOE). The DoD agreed to serve as the anchor buyer for a low-cost, drop-in replacement product for standard-sized light bulbs that provide at least 30 percent energy savings compared to traditional incandescent lamps. In parallel to the US effort, the International Energy Agency launched a co-operative technology procurement effort by assembling large buyers' groups in Finland, the Netherlands, Sweden, and the United Kingdom to pull a similar efficient lighting product into the European market. The lukewarm response from lamp manufacturers to these two technology procurement efforts illustrates the challenges of transforming residential lighting from incandescent to efficient lighting.

Rubinstein, F.; Borg, N.; Horowitz, N.; Narel, T.; Morehouse, E.T. Jr.

1998-07-01T23:59:59.000Z

228

A New Rb Lamp Exciter Circuit for Rb atomic clocks and Studies on Transition from Ring to Red mode  

E-Print Network [OSTI]

In this paper we describe the development of novel RF exciter circuit for electrode less Rb lamp. The lamp exciter circuit is a RF oscillator with a a new configuration operating at 60 to 65 MHz frequency with 3 to 4 watt power. The Rb lamp is used in exciting the ground state hyperfine transitions in Rb atom in a glass cell placed inside a tuned microwave cavity, As the frequency of these hyperfine transitions is very stable it is used in the development of Rb atomic clock by phase locking the oven controlled crystal oscillator (OCXO) to this atomic transition frequency. The details of the Rb lamp exciter are presented in the paper.The Lamp is ideally operated in ring mode as in this mode the linewidth is narrow and there is no self reversal. However, high temperature and RF excitation power may drive the Rb lamp to red mode which gives rise to line broadening and self reversal. It is the experience that mode change from ring to red deteriorates the atomic signal strength and S/N. In this paper the reasons of mode change are also discussed.

Savita Singh; Bikash Ghosal; G M Saxena

2010-11-10T23:59:59.000Z

229

Impending U.S. lighting standards will boost market for halogen-infrared lamps: New product line expanding  

SciTech Connect (OSTI)

Many of the incandescent floodlights and spotlights manufactured today will not meet lighting efficiency standards taking effect in the US in 1995. As these models cease production, demand will grow for higher efficiency units to fill this huge market, which now totals about 100 million lamps per year. One prime contender is a new class of halogen lamps that use a spectrally selective coating to reflect heat back onto the filament, reducing the amount of electricity needed to generate light. GE Lighting`s Halogen-IR line is the only series of such lamps currently available to replace the conventional floodlights and spotlights that will be banned by the new standards. Other manufacturers may adopt the technology, however, and the Japanese producer Ushio already sells in the US a line of smaller halogen lamps with a similar heat-reflective coating. In terms of efficacy and lifetime, Halogen-IR lamps out perform standard incandescents and standard halogens, but fall far short of fluorescent, metal halide, and high-pressure sodium sources. These other lighting systems are more appropriate and cost-effective than incandescents for many ambient lighting applications. For accent lighting and other tasks that are best suited to incandescent lighting, however, the Halogen-IR lamp is often a superior choice.

Sardinsky, R.; Shepard, M.

1993-12-31T23:59:59.000Z

230

Method of controlling the mercury vapor pressure in a photo-chemical lamp or vapor filter used for Hg.sup.196 enrichment  

DOE Patents [OSTI]

The present invention is directed to a method of eliminating the cold spot zones presently used on Hg.sup.196 isotope separation lamps and filters by the use of a mercury amalgams, preferably mercury - indium amalgams. The use of an amalgam affords optimization of the mercury density in the lamp and filter of a mercury enrichment reactor, particularly multilamp enrichment reactors. Moreover, the use of an amalgam in such lamps and/or filters affords the ability to control the spectral line width of radiation emitted from lamps, a requirement for mercury enrichment.

Grossman, Mark W. (Belmont, MA)

1993-01-01T23:59:59.000Z

231

Method of controlling the mercury vapor pressure in a photo-chemical lamp or vapor filter used for Hg[sup 196] enrichment  

DOE Patents [OSTI]

The present invention is directed to a method of eliminating the cold spot zones presently used on Hg[sup 196] isotope separation lamps and filters by the use of a mercury amalgams, preferably mercury - indium amalgams. The use of an amalgam affords optimization of the mercury density in the lamp and filter of a mercury enrichment reactor, particularly multilamp enrichment reactors. Moreover, the use of an amalgam in such lamps and/or filters affords the ability to control the spectral line width of radiation emitted from lamps, a requirement for mercury enrichment.

Grossman, M.W.

1993-02-16T23:59:59.000Z

232

A high-efficiency indirect lighting system utilizing the solar 1000 sulfur lamp  

SciTech Connect (OSTI)

High-lumen light sources represent unique challenges and opportunities for the design of practical and efficient interior lighting systems. High-output sources require a means of large-scale distribution and avoidance of high-luminance glare while providing efficient delivery. An indirect lighting system has been developed for use with a 1,000 Watt sulfur lamp that efficiently utilizes the high-output source to provide quality interior lighting. This paper briefly describes the design and initial testing of this new system.

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

1997-06-01T23:59:59.000Z

233

Lamp Divisions  

Office of Legacy Management (LM)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) "ofEarlyEnergyDepartment ofDepartment ofof EnergyYou$ EGcG ENERGYELIkNATIONHEALXH:LTS Plan WorkshopI9 I

234

Reduce Operating Costs with an EnergySmart School Project  

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

ballasts can reduce lighting energy by 20 to 30 percent. * ENERGY STAR light-emitting diode (LED) exit signs can last 25 years without lamp replacement. Compact...

235

CX-001990: Categorical Exclusion Determination | Department of...  

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

University will replace windows in three buildings, lamps and ballasts in the library, light fixtures in the athletic complex, and initiate a recycling program....

236

Making the Market Right for Environmentally Sound Energy-Efficient Technologies: U.S. Buildings Sector Successes that Might Work in Developing Countries and Eastern Europe  

E-Print Network [OSTI]

than their 100-year old incandescent ancestors. However,Hz core-coil ballasts. Incandescent lighting consumes aboutthe developing world, incandescent lamps drive peak demand,

Gadgil, A.J.

2008-01-01T23:59:59.000Z

237

CA-TRIBE-SUSANVILLE INDIAN RANCHERIA, CALIFORNIA  

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

lighting fixtures and lighting upgrades; conversion of exit signs to light- emitting diode; replacement of T-12 lamps and ballasts; heating, ventilating, and air...

238

CX-002214: Categorical Exclusion Determination | Department of...  

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

efficient lighting fixtures and lighting upgrades; conversion of exit signs to light-emitting diode; replacement of T-12 lamps and ballasts; heating, ventilating, and air...

239

Analysis of Potential Energy Saving and CO2 Emission Reduction of Home Appliances and Commercial Equipments in China  

E-Print Network [OSTI]

irons Automatic rice cookers Microwave Radio receivers andFluorescent Lamp Ballast Rice cooker Microwave ovens OfficeOthers include: rice cookers, microwaves, laser printers,

Zhou, Nan

2010-01-01T23:59:59.000Z

240

A theoretical study of the incandescent filament lamp performance under voltage flicker  

SciTech Connect (OSTI)

Incandescent filament lamp flicker, produced by voltage fluctuation, is a power quality problem that caused engineering concern since the onset of electrical illumination technology. The flicker phenomenon was analyzed and explained in early studies. Standards dealing with acceptable flicker levels are well known, nevertheless, today the discussion about flicker continues to be a top priority topic due to the fact that steady-state and transient voltage waveform distortion is a growing problem in low and medium voltage systems. In many situations voltage flicker is caused by subharmonics and interharmonics of voltage. Cycloconverters, welders and arc furnaces, eccentrically operating tools and integral cycle controlled power equipment are notorious for producing voltage flicker. The goal of this paper is to provide solid mathematical basis for the analytical modeling of incandescent filament lamp flicker when the voltage is nonsinusoidal. A mathematical model that enables the evaluation of the luminous flux modulation caused by noninteger harmonics (subharmonics and interharmonics) is presented. Three situations are detailed: square-wave voltage modulation, sinusoidal modulation and the case of noninteger harmonics with nearly contiguous frequencies.

Peretto, L. [Univ. of Bologna (Italy)] [Univ. of Bologna (Italy); Emanuel, A.E. [Worcester Polytechnic Inst., MA (United States)] [Worcester Polytechnic Inst., MA (United States)

1997-01-01T23:59:59.000Z

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


241

Macros that Reach Out and Touch Somewhere Gregor Kiczales, John Lamping, Luis H. Rodriguez Jr., and Erik Ruf  

E-Print Network [OSTI]

., and Erik Ruf Xerox PARC Internal Report, December 1991. © Copyright 1991 Xerox Corporation. All rights Xerox Corporation Gregor Kiczales, John Lamping, Luis Rodriguez and Erik Ruf Xerox PARC By providing, and insert the necessary coercions. The code stays clean, and there is no chance of missing a coercion. Both

242

Tomorrow's cities -the lamp-posts watching every move1 by Jane Wakefield for BBC News2  

E-Print Network [OSTI]

the city council is looking to upgrade its23 streetlights to more energy-efficient LED lights - likely in the area. The pilot project will be integrated with the newly built City Operations Centre, where CCTVTomorrow's cities - the lamp-posts watching every move1 by Jane Wakefield for BBC News2 3 Imagine

South Bohemia, University of

243

NIST energy related inventions: Electronic starter device for fluorescent lamps. Interim report, August--October, 1997  

SciTech Connect (OSTI)

From the Scope of Work document which accompanied the original proposal, three silicon devices were anticipated for development, simulation, and quality assurance fabrication. The status of these are in the same format as the Scope of Work...Attachment-A-: Task 1--design and simulation; Task 2--prototype tooling; Task 3--test engineering; Task 4--product tooling; Task 5--package tooling/manufacturing design and assembly. It is felt the program will meet it`s stated goals of producing a low cost, high performance fluorescent lamp starter which will lower the acquisition and operating cost of fluorescent technology...thus saving significant amounts of energy. The likelihood of success is even greater, now that the TN22 component has been qualified. The challenges of creating a custom ASIC, while still significant, are within the skill and expertise level or the assigned engineers.

Johnson, S.A.

1997-12-01T23:59:59.000Z

244

Efficient Light Sources Today  

E-Print Network [OSTI]

This paper reviews new lamp and lighting technology in terms of application and economic impact. Included are the latest advances in High Intensity Discharge systems, energy saving fluorescent lamps and ballasts, and the new state of the art high...

Hart, A. L.

1982-01-01T23:59:59.000Z

245

STATE OF CALIFORNIA CERTIFICATE OF COMPLIANCE AND FIELD INSPECTION CHECKLIST  

E-Print Network [OSTI]

Watts: 1. Type of luminaire (i.e.: post top, wall pack, surface, shoe box); for non-incandescent luminaires, indicate nominal lamp wattage and lamp type ( i.e.: fluorescent, incandescent, HID); ballast type. For incandescent luminaires, the lum

246

CALIFORNIA Jackalyne Pfannenstiel  

E-Print Network [OSTI]

Efficiency Regulations, appliance standards, refrigerators, air conditioners, space heaters, water heaters, pool heaters, plumbing fittings, plumbing fixtures, showerheads, spray valves, faucets, tub spout diverters, water closets, urinals, fluorescent lamp ballasts, lamps, emergency lighting, exit signs, traffic

247

Flash Lamp Integrating Sphere Technique for Measuring the Dynamic Reflectance of Shocked Materials  

SciTech Connect (OSTI)

Accurate reflectance (R) measurements of metals undergoing shock wave compression can benefit high pressure research in several ways. For example, pressure dependent reflectance measurements can be used to deduce electronic band structure, and discrete changes with pressure or temperature may indicate the occurrence of a phase boundary. Additionally, knowledge of the wavelength dependent emissivity (1 -R, for opaque samples) of the metal surface is essential for accurate pyrometric temperature measurement because the radiance is a function of both the temperature and emissivity. We have developed a method for measuring dynamic reflectance in the visible and near IR spectral regions with nanosecond response time and less than 1.5% uncertainty. The method utilizes an integrating sphere fitted with a xenon flash-lamp illumination source. Because of the integrating sphere, the measurements are insensitive to changes in surface curvature or tilt. The in-situ high brightness of the flash-lamp exceeds the sample’s thermal radiance and also enables the use of solid state detectors for recording the reflectance signals with minimal noise. Using the method, we have examined the dynamic reflectance of gallium and tin subjected to shock compression from high explosives. The results suggest significant reflectance changes across phase boundaries for both metals. We have also used the method to determine the spectral emissivity of shock compressed tin at the interface between tin and a LiF window. The results were used to perform emissivity corrections to previous pyrometry data and obtain shock temperatures of the tin/LiF interface with uncertainties of less than 2%.

Stevens, Gerald [National Security Technologies, LLC; La Lone, Brandon [National Security Technologies, LLC; Veeser, Lynn [National Security Technologies, LLC; Hixson, Rob [National Security Technologies, LLC; Holtkamp, David [Los Alamos National Laboratory

2013-07-08T23:59:59.000Z

248

DOE CALiPER Program, Report 21.2: Linear (T8) LED Lamp Performance in Five Types of Recessed Troffers  

SciTech Connect (OSTI)

Although lensed troffers are numerous, there are many other types of optical systems as well. This report looked at the performance of three linear (T8) LED lamps chosen primarily based on their luminous intensity distributions (narrow, medium, and wide beam angles) as well as a benchmark fluorescent lamp in five different troffer types. Also included are the results of a subjective evaluation. Results show that linear (T8) LED lamps can improve luminaire efficiency in K12-lensed and parabolic-louvered troffers, effect little change in volumetric and high-performance diffuse-lensed type luminaires, but reduce efficiency in recessed indirect troffers. These changes can be accompanied by visual appearance and visual comfort consequences, especially when LED lamps with clear lenses and narrow distributions are installed. Linear (T8) LED lamps with diffuse apertures exhibited wider beam angles, performed more similarly to fluorescent lamps, and received better ratings from observers. Guidance is provided on which luminaires are the best candidates for retrofitting with linear (T8) LED lamps.

Miller, Naomi J.; Perrin, Tess E.; Royer, Michael P.; Wilkerson, Andrea M.; Beeson, Tracy A.

2014-05-20T23:59:59.000Z

249

Mechanical design of PlayLamp : a minimally intrusive device for recording the behavior of children at-risk of developmental disorders  

E-Print Network [OSTI]

This thesis paper documents the design process, decisions, and outcomes of the design of the physical form factor of PlayLamp, a device for video and audio recording the development of children at-risk of having developmental ...

Steger, Stephen Andrew

2008-01-01T23:59:59.000Z

250

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

Broader source: Energy.gov [DOE]

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

251

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

DOE Patents [OSTI]

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

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

1998-11-24T23:59:59.000Z

252

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

DOE Patents [OSTI]

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

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

1998-01-01T23:59:59.000Z

253

Color stable phosphors for LED lamps and methods for preparing them  

DOE Patents [OSTI]

An LED lamp includes a light source configured to emit radiation with a peak intensity at a wavelength between about 250 nm and about 550 nm; and a phosphor composition configured to be radiationally coupled to the light source. The phosphor composition includes particles of a phosphor of formula I, said particles having a coating composition disposed on surfaces thereof; ((Sr.sub.1-zM.sub.z).sub.1-(x+w)A.sub.wCe.sub.x).sub.3(Al.sub.1-ySi.sub.y-)O.sub.4+y+3(x-w)F.sub.1-y-3(x-w) I wherein the coating composition comprises a material selected from aluminum oxide, magnesium oxide, calcium oxide, barium oxide, strontium oxide, zinc oxide, aluminum hydroxide, magnesium hydroxide, calcium hydroxide, barium hydroxide, strontium hydroxide, zinc hydroxide, aluminum phosphate, magnesium phosphate, calcium phosphate, barium phosphate, strontium phosphate, and combinations thereof; and A is Li, NA, K, or Rb, or a combination thereof; M is Ca, Ba, Mg, Zn, or a combination thereof; and 0

Murphy, James Edward; Setlur, Anant Achyut; Camardello, Samuel Joseph

2013-11-26T23:59:59.000Z

254

An Integrated Solid-State LED Luminaire for General Lighting  

SciTech Connect (OSTI)

A strong systems approach to designing and building practical LED-based replacement lamps is lacking. The general method of taking high-performance LEDs and marrying them to standard printed circuit boards, drivers and a heat sink has fallen short of the promise of LED lighting. In this program, a top-down assessment of requirements and a bottom-up reinvention of LED sources, electronics, optics and mechanics have resulted in the highest performance lamp possible. The team, comprised of Color Kinetics, the leaders in LED lighting and Cree, the leaders in LED devices took an approach to reinvent the package, the driver and the overall form and aesthetic of a replacement source. The challenge was to create a new benchmark in LED lighting - the resultant lamp, a PAR38 equivalent, met the light output, color, color quality and efficacy marks set out in the program as well as being dimmable, which is important for market acceptance. The approach combined the use of multiple source die, a chip-on-board approach, a very efficient driver topology, the use of both direct emission and phosphor conversion, and a unique faceted optic to avoid the losses, artifacts and hotspots of lensed approaches. The integral heat sink provided a mechanical base and airflow using a chimney-effect for use in a wide variety of locations and orientations. These research results led to a much better understanding of the system effects of component level technologies. It was clear that best-of-breed sub-system results do not necessarily result in the best end result for the complete system. In doing this work, we did not neglect the practical aspects of these systems. These were not rarified results and commercially impractical but lent themselves to eventual commercial products in the marketplace. The end result - a high performance replacement lamp - will save significant energy while providing a high-quality light source.

Kevin Dowling; Fritz Morgan Ihor Lys; Mike Datta; Bernd Keller; Thomas Yuan

2009-03-31T23:59:59.000Z

255

Energy and Economic Impacts of U.S. Federal Energy and Water Conservation Standards Adopted From 1987 Through 2011  

E-Print Network [OSTI]

Fluorescent Lamps and Incandescent Reflector Lamps EPACTBallasts and Fixtures General Service Incandescent Lamps,Intermediate Base Incandescent Lamps and Candelabra Base

Meyers, Stephen

2013-01-01T23:59:59.000Z

256

Energy and Economic Impacts of U.S. Federal Energy and Water Conservation Standards Adopted From 1987 through 2012  

E-Print Network [OSTI]

Fluorescent Lamps and Incandescent Reflector Lamps EPACTBallasts and Fixtures General Service Incandescent Lamps,Intermediate Base Incandescent Lamps and Candelabra Base

Meyers, Stephen

2013-01-01T23:59:59.000Z

257

General Technical Base Qualification Standard (DOE Defense Nuclear Facilities Technical Personnel)  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:YearRound-UpHeatMulti-Dimensional Subject: Guidance for naturalGeneral Service LED Lamps SENSITIVE

258

2014-06-18 Issuance: Test Procedure for Integrated Light-Emitting Diode Lamps; Supplemental Notice of Proposed Rulemaking  

Broader source: Energy.gov [DOE]

This document is a pre-publication Federal Register Supplemental Notice of Proposed Rulemaking regarding Test Procedures for Integrated Light-Emitting Diode Lamps, as issued by the Deputy Assistant Secretary for Energy Efficiency on June 18, 2014. Though it is not intended or expected, should any discrepancy occur between the document posted here and the document published in the Federal Register, the Federal Register publication controls. This document is being made available through the Internet solely as a means to facilitate the public's access to this document.

259

The Spectrum of the Th-Ar Hollow-Cathode Lamp Used with the 2dcoude Spectrograph  

E-Print Network [OSTI]

We have produced an atlas of the Th-Ar hollow-cathode lamp used with the 2dcoude spectrograph at McDonald Observatory. The atlas covers from 3611.9 to 10596.4 A at a resolving power of 52,000. We have determined the wavelenghts of 1483 emission lines in the spectrum with a median precision of 0.00023 A. A web-based interface is offered for interactive visualization of segments of the atlas or spectral orders.

Carlos Allende Prieto

2001-11-08T23:59:59.000Z

260

Technical support document: Energy efficiency standards for consumer products: Room air conditioners, water heaters, direct heating equipment, mobile home furnaces, kitchen ranges and ovens, pool heaters, fluorescent lamp ballasts and television sets. Volume 3, Water heaters, pool heaters, direct heating equipment, and mobile home furnaces  

SciTech Connect (OSTI)

This is Volume 3 in a series of documents on energy efficiency of consumer products. This volume discusses energy efficiency of water heaters. Water heaters are defined by NAECA as products that utilize oil, gas, or electricity to heat potable water for use outside the heater upon demand. These are major appliances, which use a large portion (18% on average) of total energy consumed per household (1). They differ from most other appliances in that they are usually installed in obscure locations as part of the plumbing and are ignored until they fail. Residential water heaters are capable of heating water up to 180{degrees}F, although the setpoints are usually set lower.

Not Available

1993-11-01T23:59:59.000Z

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


261

Mechanistic Evaluation of the Pros and Cons of Digital RT-LAMP for HIV1 Viral Load Quantification on a Microfluidic Device and  

E-Print Network [OSTI]

to manipulate many single molecules in parallel through a two-step digital process. In the first step weMechanistic Evaluation of the Pros and Cons of Digital RT-LAMP for HIV1 Viral Load Quantification on a Microfluidic Device and Improved Efficiency via a Two-Step Digital Protocol Bing Sun, Feng Shen, Stephanie E

Ismagilov, Rustem F.

262

IC-BASED CONTROLS FOR ENERGY-EFFICIENT LIGHTING  

SciTech Connect (OSTI)

A new approach for driving high frequency energy saving ballasts is developed and documented in this report. The developed approach utilizes an IC-based platform that provides the benefits of reduced system cost, reduced ballast size, and universal application to a wide range of lamp technologies, such as linear fluorescent lamps (LFL), compact fluorescent lamps (CFL) and high intensity discharge lamps (HID). The control IC chip set developed for the platform includes dual low voltage (LV) IC gate drive that provides gate drive for high and low side power switches in typical ballast circuits, and ballast controller IC that provides control functionalities optimal for different lamps and digital interface for future extension to more sophisticated control and communication.

Richard Zhang

2005-03-01T23:59:59.000Z

263

General Tables  

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

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

264

General Information  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: Vegetation ProposedUsingFun with Big Sky Learning Fun withGenepool QuarterlyGeneraland Ernest O.General

265

General Publications  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary)morphinanInformation Desert Southwest Region service area. TheEPSCIResearch to sponsorGeneral Atomics

266

General Publications  

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

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

267

Results from the Carbon-Land Model Intercomparison Project (C-LAMP) and Availability of the Data on the Earth System Grid (ESG)  

SciTech Connect (OSTI)

This paper describes the Carbon-Land Model Intercomparison Project (C-LAMP) being carried out through a collaboration between the Community Climate System Model (CCSM) Biogeochemistry Working Group, a DOE SciDAC-2 project, and the DOE Program for Climate Model Diagnosis and Intercomparison (PCMDI). The goal of the project is to intercompare terrestrial biogeochemistry models running within the CCSM framework to determine the best set of processes to include in future versions of CCSM. As a part of the project, observational datasets are being collected and used to score the scientific performance of these models following a well-defined set of metrics. In addition, metadata standards for terrestrial biosphere models are being developed to support archival and distribution of the C-LAMP model output via the Earth System Grid (ESG). Progress toward completion of this project and preliminary results from the first set of experiments are reported.

Hoffman, Forrest M [ORNL; Covey, Curtis [Lawrence Livermore National Laboratory (LLNL); Fung, Inez [University of California, Berkeley; Randerson, Jim [University of California, Irvine; Thornton, Peter [National Center for Atmospheric Research (NCAR); Lee, Jeff [National Center for Atmospheric Research (NCAR); Rosenbloom, Nan [National Center for Atmospheric Research (NCAR); Stockli, Reto [Colorado State University, Fort Collins; Running, Steven [University of Montana, Missoula; Bernholdt, David E [ORNL; Williams, Dean [Lawrence Livermore National Laboratory (LLNL)

2007-01-01T23:59:59.000Z

268

Demonstration of LED Retrofit Lamps at an Exhibit of 19th Century Photography at the Getty Museum  

SciTech Connect (OSTI)

This document is a report of observations and results obtained from a lighting demonstration project conducted under the U.S. Department of Energy (DOE) GATEWAY Demonstration Program. The program supports demonstrations of high-performance solid-state lighting (SSL) products in order to develop empirical data and experience with in-the-field applications of this advanced lighting technology. The DOE GATEWAY Demonstration Program focuses on providing a source of independent, third-party data for use in decision-making by lighting users and professionals; this data should be considered in combination with other information relevant to the particular site and application under examination. Each GATEWAY Demonstration compares SSL products against the incumbent technologies used in that location. Depending on available information and circumstances, the SSL product may also be compared to alternate lighting technologies. Though products demonstrated in the GATEWAY program may have been prescreened for performance, DOE does not endorse any commercial product or in any way guarantee that users will achieve the same results through use of these products. This report reviews the installation and use of LED PAR38 lamps to light a collection of toned albument photographic prints at the J. Paul Getty Museum in Malibu, California. Research results provided by the Getty Conservation Institute are incorporated and discussed.

Miller, Naomi J.; Druzik, Jim

2012-03-02T23:59:59.000Z

269

Keystone: Order (2013-CE-2601)  

Broader source: Energy.gov [DOE]

DOE ordered Keystone Technologies, LLC to pay a $8,000 civil penalty after finding Keystone had failed to certify that certain models of fluorescent lamp ballasts comply with the applicable energy conservation standards.

270

Keystone: Proposed Penalty (2013-CE-2601)  

Broader source: Energy.gov [DOE]

DOE alleged in a Notice of Proposed Civil Penalty that Keystone Technologies, LLC failed to certify a variety of fluorescent lamp ballasts as compliant with the applicable energy conservation standards.

271

Pre-Retrofit Lighting Study at the University of Texas at Arlington, Texas  

E-Print Network [OSTI]

Audit Report for the site, completed in 1991, recommended a lighting retrofit that included delamping, relamping with high efficiency lamps, the installation of high efficiency electronic ballasts, and the installation of specular reflectors. However...

Houcek, J. K.; Claridge, D. E.; Haberl, J. S.

1993-01-01T23:59:59.000Z

272

Power Conditioning and Control Applications for Energy Conservation  

E-Print Network [OSTI]

Electrical power conditioning and control (PCC) systems are finding cost effective applications in AC motor drives, lamp ballasts and power supplies. Substantial system efficiency improvements are being realized when the appropriate PCC system...

Brushwood, J. S.

1982-01-01T23:59:59.000Z

273

Philips: Noncompliance Determination (2012-SE-2605)  

Broader source: Energy.gov [DOE]

DOE issued a Notice of Noncompliance Determination to Philips Lighting Electronics N. A. finding that basic model VEL-I S40-SC, a fluorescent lamp ballast, does not comport with the energy conservation standards.

274

Electrical Equipment Replacement: Energy Efficiency versus System Compatibility  

E-Print Network [OSTI]

end users to select the most energy efficient equipment when replacing motors, motor drives, transformers, lamps, ballasts, etc., given costs associated with energy consumption when compared with installation. The selection of replacement parts...

Massey, G. W.

2005-01-01T23:59:59.000Z

275

Energy Engineering Analysis Program (EEAP), Fort Bliss headquarters building, lighting retrofit, Fort Bliss, El Paso, Texas  

SciTech Connect (OSTI)

The purpose of this study is to analyze the use of high efficiency fluorescent lighting with energy efficient lamps and electronic ballast for the Headquarters Building (Bldg. number 2) at Fort Bliss.

NONE

1993-02-01T23:59:59.000Z

276

The IGBT Compendium: Applications and Social Impact  

E-Print Network [OSTI]

...............................................................15 4.3 Electronic Ballasts for Compact Fluorescent Lamps...............................................................................................40 4.5.9 Drive Circuits for Plasma TVs..................................................................................46 4.7.2 Arc and Tube Welding

277

Tungsten and tungsten alloy powder metallurgy: Powder production and applications excluding lamps. (Latest citations from the US Patent bibliographic file with exemplary claims). Published Search  

SciTech Connect (OSTI)

The bibliography contains citations of selected patents concerning the preparation of metallic and ceramic powders of tungsten and tungsten alloys, including applications of these materials. The hydrogen reduction of tungsten compounds together with alloying element compounds produce forms with characteristics of high density, hardness, wear resistance, high melting points, and abrasiveness. Topics include production of cathodes, heaters, filament wires, electrical contacts, acoustic absorbers, high-density sheets and coatings, hard penetrators, and tungsten carbide and metallized ceramics. Tungsten halogen lamps are examined in a separate bibliography.(Contains 50-250 citations and includes a subject term index and title list.) (Copyright NERAC, Inc. 1995)

NONE

1997-01-01T23:59:59.000Z

278

Tungsten and tungsten alloy powder metallurgy: Powder production and applications excluding lamps. (Latest citations from the US Patent database). Published Search  

SciTech Connect (OSTI)

The bibliography contains citations of selected patents concerning the preparation of metallic and ceramic powders of tungsten and tungsten alloys, including applications of these materials. The hydrogen reduction of tungsten compounds together with alloying element compounds produce forms with characteristics of high density, hardness, wear resistance, high melting points, and abrasiveness. Topics include production of cathodes, heaters, filament wires, electrical contacts, acoustic absorbers, high-density sheets and coatings, hard penetrators, and tungsten carbide and metallized ceramics. Tungsten halogen lamps are examined in a separate bibliography. (Contains a minimum of 97 citations and includes a subject term index and title list.)

Not Available

1993-05-01T23:59:59.000Z

279

Tungsten and tungsten alloy powder metallurgy: Powder production and applications excluding lamps. (Latest citations from the US Patent bibliographic file with exemplary claims). Published Search  

SciTech Connect (OSTI)

The bibliography contains citations of selected patents concerning the preparation of metallic and ceramic powders of tungsten and tungsten alloys, including applications of these materials. The hydrogen reduction of tungsten compounds together with alloying element compounds produce forms with characteristics of high density, hardness, wear resistance, high melting points, and abrasiveness. Topics include production of cathodes, heaters, filament wires, electrical contacts, acoustic absorbers, high-density sheets and coatings, hard penetrators, and tungsten carbide and metallized ceramics. Tungsten halogen lamps are examined in a separate bibliography.(Contains 50-250 citations and includes a subject term index and title list.) (Copyright NERAC, Inc. 1995)

NONE

1995-12-01T23:59:59.000Z

280

Tungsten and tungsten alloy powder metallurgy: Powder production and applications excluding lamps. (Latest citations from the US Patent bibliographic file with exemplary claims). Published Search  

SciTech Connect (OSTI)

The bibliography contains citations of selected patents concerning the preparation of metallic and ceramic powders of tungsten and tungsten alloys, including applications of these materials. The hydrogen reduction of tungsten compounds together with alloying element compounds produce forms with characteristics of high density, hardness, wear resistance, high melting points, and abrasiveness. Topics include production of cathodes, heaters, filament wires, electrical contacts, acoustic absorbers, high-density sheets and coatings, hard penetrators, and tungsten carbide and metallized ceramics. Tungsten halogen lamps are examined in a separate bibliography. (Contains a minimum of 115 citations and includes a subject term index and title list.)

NONE

1995-02-01T23:59:59.000Z

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


281

Phosphors for LED lamps  

DOE Patents [OSTI]

A phosphor, a phosphor blend including the phosphor, a phosphor prepared by a process, and a lighting apparatus including the phosphor blend are disclosed. The phosphor has the formula (Ca.sub.1-p-qCe.sub.pK.sub.q).sub.xSc.sub.y(Si.sub.1-rGa.sub.r).sub.zO.su- b.12+.delta. or derived from a process followed using disclosed amounts of reactants. In the formula, (0

Murphy, James Edward; Manepalli, Satya Kishore; Kumar, Prasanth Nammalwar

2013-08-13T23:59:59.000Z

282

CX-011406: Categorical Exclusion Determination | Department of...  

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

Categorical Exclusion Determination Notice of Proposed Rulemaking for Energy Conservation Standards for General Service Fluorescent Lamps and Incandescent Reflector Lamps...

283

General Electric Lighting The last couple months at General Electric Lighting have been very exciting. In addition to the  

E-Print Network [OSTI]

a high voltage is applied to them, a plasma arc is formed, and the intense heat causes the electrons. I am still currently in the High Intensity Discharge (HID) division, working on a new outdoor lamp amounts of these elements are used to carefully control the color balance of the lamp. For example, sodium

Rollins, Andrew M.

284

Thorium, uranium and rare earth elements content in lanthanide concentrate (LC) and water leach purification (WLP) residue of Lynas advanced materials plant (LAMP)  

SciTech Connect (OSTI)

Lynas Advanced Materials Plant (LAMP) has been licensed to produce the rare earths elements since early 2013 in Malaysia. LAMP processes lanthanide concentrate (LC) to extract rare earth elements and subsequently produce large volumes of water leach purification (WLP) residue containing naturally occurring radioactive material (NORM). This residue has been rising up the environmental issue because it was suspected to accumulate thorium with significant activity concentration and has been classified as radioactive residue. The aim of this study is to determine Th-232, U-238 and rare earth elements in lanthanide concentrate (LC) and water leach purification (WLP) residue collected from LAMP and to evaluate the potential radiological impacts of the WLP residue on the environment. Instrumental Neutron Activation Analysis and ?-spectrometry were used for determination of Th, U and rare earth elements concentrations. The results of this study found that the concentration of Th in LC was 1289.7 ± 129 ppm (5274.9 ± 527.6Bq/kg) whereas the Th and U concentrations in WLP were determined to be 1952.9±17.6 ppm (7987.4 ± 71.9 Bq/kg) and 17.2 ± 2.4 ppm respectively. The concentrations of Th and U in LC and WLP samples determined by ?- spectrometry were 1156 ppm (4728 ± 22 Bq/kg) and 18.8 ppm and 1763.2 ppm (7211.4 Bq/kg) and 29.97 ppm respectively. This study showed that thorium concentrations were higher in WLP compare to LC. This study also indicate that WLP residue has high radioactivity of {sup 232}Th compared to Malaysian soil natural background (63 - 110 Bq/kg) and come under preview of Act 304 and regulations. In LC, the Ce and Nd concentrations determined by INAA were 13.2 ± 0.6% and 4.7 ± 0.1% respectively whereas the concentrations of La, Ce, Nd and Sm in WLP were 0.36 ± 0.04%, 1.6%, 0.22% and 0.06% respectively. This result showed that some amount of rare earth had not been extracted and remained in the WLP and may be considered to be reextracted.

AL-Areqi, Wadeeah M., E-mail: walareqi@yahoo.com; Majid, Amran Ab., E-mail: walareqi@yahoo.com; Sarmani, Sukiman, E-mail: walareqi@yahoo.com [Nuclear Science Programme, School of Chemical Sciences and Food Technology, Faculty of Science and Technology, Universiti Kebangsaan Malaysia, 43600 Bangi (Malaysia)

2014-02-12T23:59:59.000Z

285

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

E-Print Network [OSTI]

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

Short, Daniel

286

Generalized concatenated quantum codes  

E-Print Network [OSTI]

We discuss the concept of generalized concatenated quantum codes. This generalized concatenation method provides a systematical way for constructing good quantum codes, both stabilizer codes and nonadditive codes. Using ...

Grassl, Markus

287

Applications of Cu{sub 2}O octahedral particles on ITO glass in photocatalytic degradation of dye pollutants under a halogen tungsten lamp  

SciTech Connect (OSTI)

Graphical abstract: - Highlights: • Photocatalytic activity of Cu{sub 2}O octahedral microcrystals on ITO glass was studied. • They showed high abilities in degradation of methylene blue in the presence of H{sub 2}O{sub 2}. • H{sub 2}O{sub 2} amount could affect the degradation efficiency. • Such particles could be easily recycled and still kept high activity. • Many dye pollutants and their mixtures could be efficiently degraded. - Abstract: Cu{sub 2}O octahedral microcrystals were prepared on the ITO glass by galvanostatic electrodeposition in CuSO{sub 4} solution with poly(vinylpryrrolidone) as the surfactant. By controlling the electrodeposition time, the microcrystals could be randomly distributed on the ITO glass and separated from each other, resulting in as many as possible (1 1 1) crystalline planes were exposed. Such microcrystals immobilized on ITO glass were employed in photodegradation of dye pollutants in the presence of H{sub 2}O{sub 2} under a 150 W halogen tungsten lamp. The photodegradation of methylene blue was taken as an example to evaluate the photocatalytic activities of the octahedral Cu{sub 2}O microcrystals. Effects of electrodeposition time and H{sub 2}O{sub 2} amount on the degradation efficiency was discussed, giving the optimum conditions and the corresponding degradation mechanism. The catalyst showed high ability in degradation of methylene blue, methyl orange, rhodamine B, eosin B and their mixtures under identical conditions.

Zhai, Wei [School of Chemistry and Environment, South China Normal University, Guangzhou 510006 (China); Sun, Fengqiang, E-mail: fqsun@scnu.edu.cn [School of Chemistry and Environment, South China Normal University, Guangzhou 510006 (China); Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education, South China Normal University (China); Exhibition Base of Production, Study and Research on New Polymer Materials and Postgraduate Students’ Innovation Training of Guangdong Higher Education Institutes (China); Chen, Wei; Zhang, Lihe; Min, Zhilin; Li, Weishan [School of Chemistry and Environment, South China Normal University, Guangzhou 510006 (China)

2013-11-15T23:59:59.000Z

288

Generalized discoid lupus erythematosus  

E-Print Network [OSTI]

was diagnostic of discoid lupus erythematosus (DLE).A minority of patients with DLE progress to develop systemicalthough generalized DLE is more frequently associated with

2009-01-01T23:59:59.000Z

289

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

E-Print Network [OSTI]

phasing out the use of incandescent lamps. Following majorproposed phase out of incandescent bulbs in Chile. 2 Lifeless energy: here incandescent lights (IL) are evaluated

Letschert, Virginie E.

2012-01-01T23:59:59.000Z

290

Generalized Galilean Genesis  

E-Print Network [OSTI]

The galilean genesis scenario is an alternative to inflation in which the universe starts expanding from Minkowski in the asymptotic past by violating the null energy condition stably. Several concrete models of galilean genesis have been constructed so far within the context of galileon-type scalar-field theories. We give a generic, unified description of the galilean genesis scenario in terms of the Horndeski theory, i.e., the most general scalar-tensor theory with second-order field equations. In doing so we generalize the previous models to have a new parameter (denoted by {\\alpha}) which results in controlling the evolution of the Hubble rate. The background dynamics is investigated to show that the generalized galilean genesis solution is an attractor, similarly to the original model. We also study the nature of primordial perturbations in the generalized galilean genesis scenario. In all the models described by our generalized genesis Lagrangian, amplification of tensor perturbations does not occur as ...

Nishi, Sakine

2015-01-01T23:59:59.000Z

291

A spreadsheet for analyzing the in situ performance of fluorescent luminaires  

SciTech Connect (OSTI)

A spreadsheet program for determining system efficacy, power input and light output of common 4 ft fluorescent lighting systems under realistic operating conditions is described. The program uses accepted IES engineering principles to precisely account for ballast factor, existing thermal conditions and maintenance practices. The spreadsheet, which includes a data base of lamp and ballast performance data, can be used to calculate the cost-effectiveness of many common lighting retrofits.

Rubinstein, F.; Zhang, Chin.

1991-08-01T23:59:59.000Z

292

Spectrally Enhanced Lighting Program Implementation for Energy Savings: Field Evaluation  

SciTech Connect (OSTI)

This report provides results from an evaluation PNNL conducted of a spectrally enhanced lighting demonstration project. PNNL performed field measurements and occupant surveys at three office buildings in California before and after lighting retrofits were made in August and December 2005. PNNL measured the following Overhead lighting electricity demand and consumption, Light levels in the workspace, Task lighting use, and Occupant ratings of satisfaction with the lighting. Existing lighting, which varied in each building, was replaced with lamps with correlated color temperature (CCT) of 5000 Kelvin, color rendering index (CRI) of 85, of varying wattages, and lower ballast factor electronic ballasts. The demonstrations were designed to decrease lighting power loads in the three buildings by 22-50 percent, depending on the existing installed lamps and ballasts. The project designers hypothesized that this reduction in electrical loads could be achieved by the change to higher CCT lamps without decreasing occupant satisfaction with the lighting.

Gordon, Kelly L.; Sullivan, Gregory P.; Armstrong, Peter R.; Richman, Eric E.; Matzke, Brett D.

2006-08-22T23:59:59.000Z

293

Construction of Generalized Connections  

E-Print Network [OSTI]

We present a construction method for mappings between generalized connections, comprising, e.g., the action of gauge transformations, diffeomorphisms and Weyl transformations. Moreover, criteria for continuity and measure preservation are stated.

Christian Fleischhack

2006-01-02T23:59:59.000Z

294

General relativity and experiment  

E-Print Network [OSTI]

The confrontation between Einstein's theory of gravitation and experiment is summarized. Although all current experimental data are compatible with general relativity, the importance of pursuing the quest for possible deviations from Einstein's theory is emphasized.

T. Damour

1994-12-08T23:59:59.000Z

295

Generalized Fusion Potentials  

E-Print Network [OSTI]

Recently, DiFrancesco and Zuber have characterized the RCFTs which have a description in terms of a fusion potential in one variable, and proposed a generalized potential to describe other theories. In this note we give a simple criterion to determine when such a generalized description is possible. We also determine which RCFTs can be described by a fusion potential in more than one variable, finding that in fact all RCFTs can be described in such a way, as conjectured by Gepner.

Ofer Aharony

1993-01-31T23:59:59.000Z

296

Generalized Concatenated Quantum Codes  

E-Print Network [OSTI]

We introduce the concept of generalized concatenated quantum codes. This generalized concatenation method provides a systematical way for constructing good quantum codes, both stabilizer codes and nonadditive codes. Using this method, we construct families of new single-error-correcting nonadditive quantum codes, in both binary and nonbinary cases, which not only outperform any stabilizer codes for finite block length, but also asymptotically achieve the quantum Hamming bound for large block length.

Markus Grassl; Peter Shor; Graeme Smith; John Smolin; Bei Zeng

2009-01-09T23:59:59.000Z

297

Tungsten and tungsten-alloy powder metallurgy: Powder production and applications-excluding lamps. November 1971-July 1989 (Citations from the US Patent data base). Report for November 1971-July 1989  

SciTech Connect (OSTI)

This bibliography contains citations of selected patents concerning the preparation of metallic and ceramic powders of tungsten and tungsten alloys including various applications of these materials. The hydrogen reduction of tungsten compounds together with alloying-element compounds produce forms with characteristics of high density, hardness, wear resistance, high melting points, and abrasiveness. Topics include production of various cathodes, heaters, filament wires, electrical contacts, acoustic absorbers, high-density sheets and coatings, hard penetrators, and tungsten carbide and metallized ceramics. Tungsten halogen lamps are examined in a separate bibliography. (Contains 60 citations fully indexed and including a title list.)

Not Available

1989-10-01T23:59:59.000Z

298

8Be General Tables  

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

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299

8C General Tables  

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

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300

9B General Tables  

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

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


301

9Be General Tables  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsrucLasDelivered‰PNGExperience hands-onASTROPHYSICSHe β- DecayBe General Tables8 2BBBe General

302

Generalized coherent states  

E-Print Network [OSTI]

In the coherent state of the harmonic oscillator, the probability density is that of the ground state subjected to an oscillation along a classical trajectory. Senitzky and others pointed out that there are states of the harmonic oscillator corresponding to an identical oscillatory displacement of the probability density of any energy eigenstate. These generalizations of the coherent state are rarely discussed, yet they furnish an interesting set of quantum states of light that combine features of number states and coherent states. Here we give an elementary account of the quantum optics of generalized coherent states.

T. G. Philbin

2013-12-18T23:59:59.000Z

303

Generalization of Conformal Transformations  

E-Print Network [OSTI]

Conformal transformations of a Euclidean (complex) plane have some kind of completeness (sufficiency) for the solution of many mathematical and physical-mathematical problems formulated on this plane. There is no such completeness in the case of Euclidean, pseudo-Euclidean and polynumber spaces of dimension greater than two. In the present paper we show that using the concepts of analogical geometries allows us to generalize conformal transformations not only to the case of Euclidean or pseudo-Euclidean spaces, but also to the case of Finsler spaces, analogous to the spaces of affine connectedness. Examples of such transformations in the case of complex and hypercomplex numbers H_4 are presented. In the general case such transformations form a group of transitions, the elements of which can be viewed as transitions between projective Euclidean geometries of a distinguished class fixed by the choice of metric geometry admitting affine coordinates. The correlation between functions realizing generalized conformal transformations and generalized analytical functions can appear to be productive for the solution of fundamental problems in theoretical and mathematical physics.

G. I. Garas'ko

2005-09-19T23:59:59.000Z

304

DRILLING MACHINES GENERAL INFORMATION  

E-Print Network [OSTI]

TC 9-524 Chapter 4 DRILLING MACHINES GENERAL INFORMATION PURPOSE This chapter contains basic information pertaining to drilling machines. A drilling machine comes in many shapes and sizes, from small hand-held power drills to bench mounted and finally floor-mounted models. They can perform operations

Gellman, Andrew J.

305

Communication Definitions... general definition  

E-Print Network [OSTI]

Communication Definitions... general definition "the process of conveying information from a sender to a receiver with the use of a medium in which the communicated information is understood the same way by both sender and receiver" (Wikipedia)! Biological communication Action by one organism (individual

Jones, Ian L.

306

TABLE VENDOR General Information  

E-Print Network [OSTI]

TABLE VENDOR General Information The following are the terms and conditions for renting table Affairs. York University assumes no responsibility or liability for vendors and their agent including racks provided by the vendor are charged at the rate of $25.00 per day per additional display. All

307

General Syllabus Physics 45100  

E-Print Network [OSTI]

General Syllabus Physics 45100 Thermodynamics and Statistical Physics Designation: Undergraduate Catalog description: 45100: Thermodynamics and Statistical Physics Temperature; equation of state; work and statistical mechanics; low-temperature physics; the Third Law. 3 HR./Wk.; 3 CR. Prerequisites: Physics 35100

Lombardi, John R.

308

GENERAL CIRCULATION Energy Cycle  

E-Print Network [OSTI]

process. PE is useful for global energy balance. Solar radiant energy does not reach the Earth equally everywhere. On average, the tropics receive and absorb far more solar energy annually than the polar regionsGENERAL CIRCULATION Contents Energy Cycle Mean Characteristics Momentum Budget Overview Energy

Grotjahn, Richard

309

General com Technology community  

E-Print Network [OSTI]

Campus IT General com m unity Technology community ITsystem owners Campus Council for Information Technology (CCFIT) · ~30 members · Advisory evaluation and review role · Input from faculty, staff, students formal representation on steering team and subcommittees Technology Support Program · Technology support

Ferrara, Katherine W.

310

Optimization Under Generalized Uncertainty  

E-Print Network [OSTI]

11 Optimization Under Generalized Uncertainty Optimization Modeling Math 4794/5794: Spring 2013 Weldon A. Lodwick Weldon.Lodwick@ucdenver.edu 2/14/2013 Optimization Modeling - Spring 2013 #12 in the context of optimization problems. The theoretical frame-work for these notes is interval analysis. From

Lodwick, Weldon

311

Singular Value Decomposition Generalized  

E-Print Network [OSTI]

1 Overview The singular value decomposition (SVD) is a generalization of the eigen- ferent eigenvalues are pairwise orthogonal. Let X be a positive semi-definite, its eigen containing the eigenvalues of X. The SVD uses the eigen-decomposition of a positive semi-definite matrix

Abdi, Hervé

312

Generalized constructive tree weights  

SciTech Connect (OSTI)

The Loop Vertex Expansion (LVE) is a quantum field theory (QFT) method which explicitly computes the Borel sum of Feynman perturbation series. This LVE relies in a crucial way on symmetric tree weights which define a measure on the set of spanning trees of any connected graph. In this paper we generalize this method by defining new tree weights. They depend on the choice of a partition of a set of vertices of the graph, and when the partition is non-trivial, they are no longer symmetric under permutation of vertices. Nevertheless we prove they have the required positivity property to lead to a convergent LVE; in fact we formulate this positivity property precisely for the first time. Our generalized tree weights are inspired by the Brydges-Battle-Federbush work on cluster expansions and could be particularly suited to the computation of connected functions in QFT. Several concrete examples are explicitly given.

Rivasseau, Vincent, E-mail: vincent.rivasseau@th.u-psud.fr, E-mail: adrian.tanasa@ens-lyon.org [LPT, CNRS UMR 8627, Univ. Paris 11, 91405 Orsay Cedex, France and Perimeter Institute for Theoretical Physics, 31 Caroline St. N, Ontario N2L 2Y5, Waterloo (Canada)] [LPT, CNRS UMR 8627, Univ. Paris 11, 91405 Orsay Cedex, France and Perimeter Institute for Theoretical Physics, 31 Caroline St. N, Ontario N2L 2Y5, Waterloo (Canada); Tanasa, Adrian, E-mail: vincent.rivasseau@th.u-psud.fr, E-mail: adrian.tanasa@ens-lyon.org [Université Paris 13, Sorbonne Paris Cité, 99, Avenue Jean-Baptiste Clément LIPN, Institut Galilée, CNRS UMR 7030, F-93430 Villetaneuse, France and Horia Hulubei National Institute for Physics and Nuclear Engineering, P.O.B. MG-6, 077125 Magurele (Romania)] [Université Paris 13, Sorbonne Paris Cité, 99, Avenue Jean-Baptiste Clément LIPN, Institut Galilée, CNRS UMR 7030, F-93430 Villetaneuse, France and Horia Hulubei National Institute for Physics and Nuclear Engineering, P.O.B. MG-6, 077125 Magurele (Romania)

2014-04-15T23:59:59.000Z

313

Extremal generalized quantum measurements  

E-Print Network [OSTI]

A measurement on a section K of the set of states of a finite dimensional C*-algebra is defined as an affine map from K to a probability simplex. Special cases of such sections are used in description of quantum networks, in particular quantum channels. Measurements on a section correspond to equivalence classes of so-called generalized POVMs, which are called quantum testers in the case of networks. We find extremality conditions for measurements on K and characterize generalized POVMs such that the corresponding measurement is extremal. These results are applied to the set of channels. We find explicit extremality conditions for two outcome measurements on qubit channels and give an example of an extremal qubit 1-tester such that the corresponding measurement is not extremal.

Anna Jencova

2012-07-23T23:59:59.000Z

314

A Generalized Deletion Machine  

E-Print Network [OSTI]

In this work we prescribe a more generalized quantum-deleting machine (input state dependent). The fidelity of deletion is dependent on some machine parameters such that on alteration of machine parameters we get back to standard deleting machines. We also carried out a various comparative study of various kinds of quantum deleting machines. We also plotted graphs, making a comparative study of fidelity of deletion of the deletion machines, obtained as particular cases on changing the machine parameters of our machine.

Indranil Chakrabarty; Satyabrata Adhikari

2005-11-22T23:59:59.000Z

315

Generalized qudit Choi maps  

E-Print Network [OSTI]

Following the linear programming prescription of Ref. \\cite{PRA72}, the $d\\otimes d$ Bell diagonal entanglement witnesses are provided. By using Jamiolkowski isomorphism, it is shown that the corresponding positive maps are the generalized qudit Choi maps. Also by manipulating particular $d\\otimes d$ Bell diagonal separable states and constructing corresponding bound entangled states, it is shown that thus obtained $d\\otimes d$ BDEW's (consequently qudit Choi maps) are non-decomposable in certain range of their parameters.

M. A. Jafarizadeh; M. Rezaeen; S. Ahadpour

2006-07-24T23:59:59.000Z

316

General | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data CenterFranconia, Virginia: Energy Resources Jump to: navigation, searchGeauga County, Ohio: Energy ResourcesEnergyGeneral Order No.>

317

Generalized Adaptive A* Xiaoxun Sun  

E-Print Network [OSTI]

Generalized Adaptive A* Xiaoxun Sun USC Computer Science Los Angeles, California xiaoxuns spaces changes. Adaptive A* [7] is a Cite as: Generalized Adaptive A*, Xiaoxun Sun, Sven Koenig

Yeoh, William

318

Generalized utility metrics for supercomputers  

E-Print Network [OSTI]

2007:1–12 Generalized utility metrics for supercomputers 12.ISSUE PAPER Generalized utility metrics for supercomputersproblem of ranking the utility of supercom- puter systems

Strohmaier, Erich

2009-01-01T23:59:59.000Z

319

7Li General Tables  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsrucLasDelivered‰PNGExperience hands-onASTROPHYSICSHe β- Decay Evaluated7-ID ThirdBBeLi General

320

8He General Tables  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsrucLasDelivered‰PNGExperience hands-onASTROPHYSICSHe β- DecayBe General Tables The

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


321

8Li General Tables  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsrucLasDelivered‰PNGExperience hands-onASTROPHYSICSHe β- DecayBe General Tables Theβ--DecayLi

322

9C General Tables  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsrucLasDelivered‰PNGExperience hands-onASTROPHYSICSHe β- DecayBe General Tables8 2BBBe

323

9He General Tables  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsrucLasDelivered‰PNGExperience hands-onASTROPHYSICSHe β- DecayBe General Tables8 2BBBeHeHe

324

9Li General Tables  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsrucLasDelivered‰PNGExperience hands-onASTROPHYSICSHe β- DecayBe General Tables8 2BBBeHeHeLiLi

325

A = 6 General Tables  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsrucLasDelivered‰PNGExperience hands-onASTROPHYSICSHe β- DecayBenew20-Year6 General Tables The

326

A = 7 General Tables  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsrucLasDelivered‰PNGExperience hands-onASTROPHYSICSHe β- DecayBenew20-Year6 General Tables The7

327

A = 8 General Tables  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsrucLasDelivered‰PNGExperience hands-onASTROPHYSICSHe β- DecayBenew20-Year6 General Tables

328

A = 9 General Tables  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsrucLasDelivered‰PNGExperience hands-onASTROPHYSICSHe β- DecayBenew20-Year6 General Tables9

329

general_atomics.cdr  

Office of Legacy Management (LM)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) "ofEarlyEnergyDepartment ofDepartment ofof EnergyYou$0.C.Greentnv~ronmenrar ivronrrorrng Lformer General

330

General User Proposals (GUPs)  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: Vegetation ProposedUsingFun with Big Sky Learning Fun withGenepoolCrystals. | EMSL SchemaGeneral User

331

OFFICE OF INSPECTOR GENERAL  

Energy Savers [EERE]

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Office of Inspector General Office0-72.pdfGeorgeDoesn't32DepartmentWells517 Federaliof Energy

332

General Resources - Hanford Site  

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

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

333

3-50 A classroom is to be air-conditioned using window air-conditioning units. The cooling load is due to people, lights, and heat transfer through the walls and the windows. The number of 5-kW window air  

E-Print Network [OSTI]

to a total of 9u365 = 3285 off hours per year. Disregarding the ballast factor, the annual energy and cost) = (4730 kWh/year)($0.08/kWh) = $378/year The implementation cost of this measure is the sum lamps)(60 W/lamp )(3285 hours/year) = 4730 kWh/year Cost Savings = (Energy Savings)(Unit cost of energy

Bahrami, Majid

334

Ocean General Circulation Models  

SciTech Connect (OSTI)

1. Definition of Subject The purpose of this text is to provide an introduction to aspects of oceanic general circulation models (OGCMs), an important component of Climate System or Earth System Model (ESM). The role of the ocean in ESMs is described in Chapter XX (EDITOR: PLEASE FIND THE COUPLED CLIMATE or EARTH SYSTEM MODELING CHAPTERS). The emerging need for understanding the Earth’s climate system and especially projecting its future evolution has encouraged scientists to explore the dynamical, physical, and biogeochemical processes in the ocean. Understanding the role of these processes in the climate system is an interesting and challenging scientific subject. For example, a research question how much extra heat or CO2 generated by anthropogenic activities can be stored in the deep ocean is not only scientifically interesting but also important in projecting future climate of the earth. Thus, OGCMs have been developed and applied to investigate the various oceanic processes and their role in the climate system.

Yoon, Jin-Ho; Ma, Po-Lun

2012-09-30T23:59:59.000Z

335

Generalized Multicoincidence Analysis Methods  

SciTech Connect (OSTI)

The ability to conduct automated trace radionuclide analysis at or near the sample collection point would provide a valuable tool for emergency response, nuclear forensics and environmental monitoring. Pacific Northwest National Laboratory is developing systems for this purpose based on dual gamma-ray spectrometers, e.g. NaI(TI) or HPGe, combined with thin organic scintillator sensors to detect light charged particles. Translating the coincident signatures recorded by these systems, which include , and , into the concentration of detectable radionuclides in the sample requires generalized multicoincidence analysis tools. The development and validation of the Coincidence Lookup Library, which currently contains the probabilities of single and coincidence signatures from more than 420 isotopes, is described. Also discussed is a method to calculate the probability of observing a coincidence signature which incorporates true coincidence summing effects. These effects are particularly important for high-geometric-efficiency detection systems. Finally, a process for validating the integrated analysis software package is demonstrated using GEANT 4 simulations of the prototype detector systems.

Warren, Glen A.; Smith, Leon E.; Aalseth, Craig E.; Ellis, J. E.; Valsan, Andrei B.; Mengesha, Wondwosen

2005-10-01T23:59:59.000Z

336

General anesthesia, sleep, and coma  

E-Print Network [OSTI]

In the United States, nearly 60,000 patients per day receive general anesthesia for surgery.1 General anesthesia is a drug-induced, reversible condition that includes specific behavioral and physiological traits — ...

Brown, Emery N.

337

General anesthesia, sleep and coma  

E-Print Network [OSTI]

In the United States, nearly 60,000 patients per day receive general anesthesia for surgery.1 General anesthesia is a drug-induced, reversible condition that includes specific behavioral and physiological traits — ...

Schiff, Nicholas D.

338

Engineered Products: Proposed Penalty (2012-SE-5401)  

Broader source: Energy.gov [DOE]

DOE alleged in a Notice of Proposed Civil Penalty that Engineered Products Company manufactured/privately-labeled and distributed a number of units of noncompliant basic model 15701, a metal halide lamp fixture with a magnetic probe-start ballast in the U.S.

339

IEEE TRANSACTIONS ON POWER ELECTRONICS, VOL. 22, NO. 3, MAY 2007 815 Design of Resonant Inverters for Optimal Efficiency  

E-Print Network [OSTI]

IEEE TRANSACTIONS ON POWER ELECTRONICS, VOL. 22, NO. 3, MAY 2007 815 Design of Resonant Inverters for Optimal Efficiency Over Lamp Life in Electronic Ballast With Phase Control Francisco J. Azcondo, Senior was presented in part at The 20th Annual IEEE Applied Power Electronics Conference and Exposition (APEC'05

340

Climate ActionPlan2010 nau.edu/green  

E-Print Network [OSTI]

and Research · Section 2 Energy and Climate Change · Section 3 Operations · Section 4 Procurement · Section 5 Recycling and Waste Minimization · Section 6 Transportation · Section 7 Water · Appendix 1 Table of Contents. All light fixtures have been converted to electronic ballasts and T-8 lamps. The university has made

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


341

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

E-Print Network [OSTI]

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

342

APPLIANCE EFFICIENCY REGULATIONS FOR REFRIGERATORS AND FREEZERS  

E-Print Network [OSTI]

CENTRAL AIR CONDITIONERS GAS SPACE HEATERS WATER HEATERS PLUMBING FITTINGS FLUORESCENT LAMP BALLASTS LUMINAIRES GAS COOKING APPLIANCES AND GAS POOL HEATERS SEPTEMBER 1992 #12;TABLE OF CONTENTS APPLIANCE) Gas space heaters, excluding the following types: (1) gravity type central furnaces; (2) heaters

343

Agreements --General/Regional 171 GENERAL/REGIONAL  

E-Print Network [OSTI]

; Armenia; Australia; Austria; Azerbaijan; Bangladesh; Belgium; Bolivia; Brazil; Bulgaria; Burkina Faso African convention on the conservation of nature and natural resources March 25, 1957 General Belgium

Wolf, Aaron

344

OLEDS FOR GENERAL LIGHTING  

SciTech Connect (OSTI)

The goal of this program was to reduce the long term technical risks that were keeping the lighting industry from embracing and developing organic light-emitting diode (OLED) technology for general illumination. The specific goal was to develop OLEDs for lighting to the point where it was possible to demonstrate a large area white light panel with brightness and light quality comparable to a fluorescence source and with an efficacy comparable to that of an incandescent source. it was recognized that achieving this would require significant advances in three area: (1) the improvement of white light quality for illumination, (2) the improvement of OLED energy efficiency at high brightness, and (3) the development of cost-effective large area fabrication techniques. The program was organized such that, each year, a ''deliverable'' device would be fabricated which demonstrated progress in one or more of the three critical research areas. In the first year (2001), effort concentrated on developing an OLED capable of generating high illumination-quality white light. Ultimately, a down-conversion method where a blue OLED was coupled with various down-conversion layers was chosen. Various color and scattering models were developed to aid in material development and device optimization. The first year utilized this approach to deliver a 1 inch x 1 inch OLED with higher illumination-quality than available fluorescent sources. A picture of this device is shown and performance metrics are listed. To their knowledge, this was the first demonstration of true illumination-quality light from an OLED. During the second year, effort concentrated on developing a scalable approach to large area devices. A novel device architecture consisting of dividing the device area into smaller elements that are monolithically connected in series was developed. In the course of this development, it was realized that, in addition to being scalable, this approach made the device tolerant to the most common OLED defect--electrical shorts. This architecture enabled the fabrication of a 6 inch x 6 inch OLED deliverable for 2002. A picture of this deliverable is shown and the performance metrics are listed. At the time, this was the highest efficiency, highest lumen output illumination-quality OLED in existence. The third year effort concentrated on improving the fabrication yield of the 6 inch x 6 inch devices and improving the underlying blue device efficiency. An efficiency breakthrough was achieved through the invention of a new device structure such that now 15 lumen per watt devices could be fabricated. A 2 feet x 2 feet OLED panel consisting of sixteen 6 inch x 6 inch high efficiency devices tiled together was then fabricated. Pictures of this panel are shown with performance metrics listed. This panel met all project objectives and was the final deliverable for the project. It is now the highest efficiency, highest lumen output, illumination-quality OLED in existence.

Anil Duggal; Don Foust; Chris Heller; Bill Nealon; Larry Turner; Joe Shiang; Nick Baynes; Tim Butler; Nalin Patel

2004-02-29T23:59:59.000Z

345

A study of generalized inverses  

E-Print Network [OSTI]

A STUDY OF GENERALIZED INVERSES A Thesis by NANCY LEE MCKINNEY Submitted to the Graduate College of Texas ASM University in partial fulfillment of the requirement for the degree of MASTER OF SCIENCE August 1973 Major Subject: Mathematics A... STUDY OF GENERALIZED INVERSES A Thesis by NANCY LEE MCKINNEY Approved as to style and content by: airman o ittee Hea o epartment e er Me er August 1973 ABSTRACT A Study of Generalized Inverses. (August 1973) Nancy Lee NcKinney, B. A...

McKinney, Nancy Lee

1973-01-01T23:59:59.000Z

346

Extremality conditions for generalized channels  

E-Print Network [OSTI]

A generalized channel is a completely positive map that preserves trace on a given subspace. We find conditions under which a generalized channel with respect to a positively generated subspace J is an extreme point in the set of all such generalized channels. As a special case, this yields extremality conditions for quantum protocols. In particular, we obtain new extremality conditions for quantum 1-testers with 2 outcomes, which correspond to yes/no measurements on the set of quantum channels.

Anna Jencova

2012-04-12T23:59:59.000Z

347

Dynamics of generalized tachyon field  

E-Print Network [OSTI]

We investigate the dynamics of generalized tachyon field in FRW spacetime. We obtain the autonomous dynamical system for the general case. Because the general autonomous dynamical system cannot be solved analytically, we discuss two cases in detail: $\\beta=1$ and $\\beta=2$. We find the critical points and study their stability. At these critical points, we also consider the stability of the generalized tachyon field, which is as important as the stability of critical points. The possible final states of the universe are discussed.

Rong-Jia Yang; Jingzhao Qi

2012-08-06T23:59:59.000Z

348

Digestive System general organization throughout  

E-Print Network [OSTI]

Digestive System general organization throughout: mucosa, submucosa, muscularis externa, serosa digestive glands salivary pancreas liver (lobes: right, left, caudate, quadrate, diaphragmatic surface, bare

Houde, Peter

349

Advances in Lighting  

E-Print Network [OSTI]

colour rendition. The quartz-halogen incandescent lam s operate at higher temperatures, and have a somewhat higher efficacy, but they are rarely used except for special applicati ns. 3-2 High Intensity Discharge Lamps. Mercury is the grandfather... of the H.I.D. lamps. Its blue-green light, has been used almost exclusively for streetlighti and, often with colour-improving phospho it is still being used in industrial and commercial applications. Reactor-type ballasted mercury lamps can now...

Tumber, A. J.

1981-01-01T23:59:59.000Z

350

QUALITY MANAGEMENT AGENDA General Agenda  

E-Print Network [OSTI]

1 QUALITY MANAGEMENT AGENDA General Agenda A week before study commences, the following matters a meeting for the following purposes: 1. Read the report that is related to quality management for the previous term. 2. Conduct a general review of the procedures of quality management and reinforcement

351

Cosmological structures in generalized gravity  

E-Print Network [OSTI]

In a class of generalized gravity theories with general couplings between the scalar field and the scalar curvature in the Lagrangian, we describe the quantum generation and the classical evolution processes of both the scalar and tensor structures in a simple and unified manner.

J. Hwang

1997-11-28T23:59:59.000Z

352

Generalized Transforms and Special Functions  

E-Print Network [OSTI]

We study the properties of different type of transforms by means of operational methods and discuss the relevant interplay with many families of special functions. We consider in particular the binomial transform and its generalizations. A general method, based on the use of the Fourier transform technique, is proposed for the study of the properties of functions of operators.

G. Dattoli; E. Sabia

2010-10-08T23:59:59.000Z

353

Louisiana Title V General Permits  

SciTech Connect (OSTI)

Title V of the Federal Clean Air Act Amendments of 1990 requires federal operating permits for all major sources of air pollution. In 1992, Title 40, Part 70 of the Code of Federal Regulations (40 CFR Part 70) codified the law s requirements. These federal regulations, entitled Operating Permit Program, define the minimum requirements for state administered operating permit programs. The intent of Title V is to put into one document all requirements of an operating permit. General Permits for oil and gas facilities may be preferred if the facility can comply with all permit requirements. If greater flexibility than allowed by the General Permit is required, then the facility should apply for an individual Title V permit. General Permits are designed to streamline the permitting process, shorten the time it takes to obtain approval for initial and modified permits. The advantages of the General Permit include reduced paperwork and greater consistency because the permits are standardized. There should be less uncertainty because permit requirements will be known at the time of application. Approval times for Initial and modified General Permits should be reduced. Lengthy public notice procedures (and possible hearings) will be required for only the initial approval of the General Permit and not for each applicant to the permit. A disadvantage of General Permits is reduced flexibility since the facility must comply with the requirements of a standardized permit.

Boyer, B.E.; Neal, T.L.

1995-12-31T23:59:59.000Z

354

Geometric Analysis and General Relativity  

E-Print Network [OSTI]

This article discusses methods of geometric analysis in general relativity, with special focus on the role of "critical surfaces" such as minimal surfaces, marginal surface, maximal surfaces and null surfaces.

Lars Andersson

2005-12-23T23:59:59.000Z

355

Geometrical optics in general relativity  

E-Print Network [OSTI]

General relativity includes geometrical optics. This basic fact has relevant consequences that concern the physical meaning of the discontinuity surfaces propagated in the gravitational field - as it was first emphasized by Levi-Civita.

A. Loinger

2006-09-19T23:59:59.000Z

356

NSED INTERNSHIP APPLICATION General Information  

E-Print Network [OSTI]

NSED INTERNSHIP APPLICATION General Information: Name) ________________________________________________________________ ________________________________________________________________ ________________________________________________________________ ________________________________________________________________ ________________________________________________________________ Internship Specifics: Have you made or do you plan to make arrangements to receive academic credit for your internship at the Florida Program for Shark Research? Yes___ No___ Requested Dates of Internship (Specific

Watson, Craig A.

357

ISAF INTERNSHIP APPLICATION General Information  

E-Print Network [OSTI]

ISAF INTERNSHIP APPLICATION General Information: Name) ________________________________________________________________ ________________________________________________________________ ________________________________________________________________ ________________________________________________________________ ________________________________________________________________ Internship Specifics: Have you made or do you plan to make arrangements to receive academic credit for your internship at the Florida Program for Shark Research? Yes___ No___ Requested Dates of Internship (Specific

Watson, Craig A.

358

Generalized Concatenation for Quantum Codes  

E-Print Network [OSTI]

We show how good quantum error-correcting codes can be constructed using generalized concatenation. The inner codes are quantum codes, the outer codes can be linear or nonlinear classical codes. Many new good codes are ...

Grassl, Markus

359

General Services Administration Photovoltaics Project in Sacramento...  

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

General Services Administration Photovoltaics Project in Sacramento, California General Services Administration Photovoltaics Project in Sacramento, California Document describes a...

360

Achieving Energy Savings with Highly-Controlled Lighting in an Open-Plan Office  

SciTech Connect (OSTI)

An installation in a Federal building tested the effectiveness of a highly-controlled, workstation-specific lighting retrofit. The study took place in an open-office area with 86 cubicles and low levels of daylight. Each cubicle was illuminated by a direct/indirectpendant luminaire with three 32 watt lamps, two dimmable DALI ballasts, and an occupancy sensor. A centralized control system programmed all three lamps to turn on and off according to occupancy on a workstation-by-workstation basis. Field measurements taken over the course of several monthsdemonstrated 40% lighting energy savings compared to a baseline without advanced controls that conforms to GSA's current retrofit standard. A photometric analysis found that the installation provided higher desktop light levels than the baseline, while an occupant survey found that occupants in general preferred the lighting system to thebaseline.Simple payback is fairly high; projects that can achieve lower installation costs and/or higher energy savings and those in which greenhouse gas reduction and occupant satisfaction are significant priorities provide the ideal setting for workstation-specific lighting retrofits.

Rubinstein, Francis; Enscoe, Abby

2010-04-19T23:59:59.000Z

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


361

Generalized Macdonald-Ruijsenaars systems  

E-Print Network [OSTI]

We consider the polynomial representation of Double Affine Hecke Algebras (DAHAs) and construct its submodules as ideals of functions vanishing on the special collections of affine planes. This generalizes certain results of Kasatani in types A_n, (C_n^\\vee,C_n). We obtain commutative algebras of difference operators given by the action of invariant combinations of Cherednik-Dunkl operators in the corresponding quotient modules of the polynomial representation. This gives known and new generalized Macdonald-Ruijsenaars systems. Thus in the cases of DAHAs of types A_n and (C_n^\\vee,C_n) we derive Chalykh-Sergeev-Veselov operators and a generalization of the Koornwinder operator respectively, together with complete sets of quantum integrals in the explicit form.

M. Feigin; A. Silantyev

2011-06-01T23:59:59.000Z

362

Quantization of general linear electrodynamics  

SciTech Connect (OSTI)

General linear electrodynamics allow for an arbitrary linear constitutive relation between the field strength 2-form and induction 2-form density if crucial hyperbolicity and energy conditions are satisfied, which render the theory predictive and physically interpretable. Taking into account the higher-order polynomial dispersion relation and associated causal structure of general linear electrodynamics, we carefully develop its Hamiltonian formulation from first principles. Canonical quantization of the resulting constrained system then results in a quantum vacuum which is sensitive to the constitutive tensor of the classical theory. As an application we calculate the Casimir effect in a birefringent linear optical medium.

Rivera, Sergio; Schuller, Frederic P. [Albert Einstein Institute, Max Planck Institute for Gravitational Physics, Am Muehlenberg 1, 14476 Potsdam (Germany)

2011-03-15T23:59:59.000Z

363

Wind Turbine Blockset General Overview  

E-Print Network [OSTI]

Wind Turbine Blockset in Saber General Overview and Description of the Models Florin Iov, Adrian Turbine Blockset in Saber Abstract. This report presents a new developed Saber Toolbox for wind turbine, optimize and design wind turbines". The report provides a quick overview of the Saber and then explains

364

GENERAL PRINCIPLES Art. 1 (Aims)  

E-Print Network [OSTI]

1 STATUTE GENERAL PRINCIPLES Art. 1 (Aims) 1. The University of Torino (hereinafter "the organizational criteria suitable for its institutional purposes according to principles of efficacy, efficiency to determine the advancement and the allocation of the staff. This planning is based on principles of quality

Sproston, Jeremy

365

Speed Limits in General Relativity  

E-Print Network [OSTI]

Some standard results on the initial value problem of general relativity in matter are reviewed. These results are applied first to show that in a well defined sense, finite perturbations in the gravitational field travel no faster than light, and second to show that it is impossible to construct a warp drive as considered by Alcubierre (1994) in the absence of exotic matter.

Robert J Low

1998-12-18T23:59:59.000Z

366

Interacting new generalized Chaplygin gas  

E-Print Network [OSTI]

We have presented a model in which the new generalized Chaplygin gas interacts with matter. We find that there exists a stable scaling solution at late times in the evolution of the universe. Moreover, the phantom crossing scenario is observed in this model.

Mubasher Jamil

2009-10-20T23:59:59.000Z

367

Generalized parton distributions of nuclei  

SciTech Connect (OSTI)

We review recent theoretical results on generalized parton distributions (GPDs) of nuclei, emphasizing the following three roles of nuclear GPDs: (i) complementarity to free proton GPDs, (ii) the enhancement of traditional nuclear effects such nuclear binding, EMC effect, nuclear shadowing, and (iii) an access to novel nuclear effects such as medium modifications of bound nucleons.

Guzey, V. [Theory Center, Thomas Jefferson National Accelerator Facility, Newport News, VA 23606 (United States)

2009-12-17T23:59:59.000Z

368

Generalized Concatenation for Quantum Codes  

E-Print Network [OSTI]

We show how good quantum error-correcting codes can be constructed using generalized concatenation. The inner codes are quantum codes, the outer codes can be linear or nonlinear classical codes. Many new good codes are found, including both stabilizer codes as well as so-called nonadditive codes.

Markus Grassl; Peter W. Shor; Bei Zeng

2009-05-04T23:59:59.000Z

369

Generalized teleportation and entanglement recycling  

E-Print Network [OSTI]

We introduce new teleportation protocols which are generalizations of the original teleportation protocols that use the Pauli group [Bennett, et al. Physical Review Letters, 70(13) 1895-1899] and the port-based teleportation protocols, introduced by Hiroshima and Ishizaka [Physical Review Letters, 101(24) 240501], that use the symmetric permutation group. We derive sufficient condition for a set of operations, which in general need not form a group, to give rise to a teleportation protocol and provide examples of such schemes. This generalization leads to protocols with novel properties and is needed to push forward new schemes of computation based on them. Port-based teleportation protocols and our generalizations use a large resource state consisting of N singlets to teleport only a single qubit state reliably. We provide two distinct protocols which recycle the resource state to teleport multiple states with error linearly increasing with their number. The first protocol consists of sequentially teleporting qubit states, and the second teleports them in a bulk.

Sergii Strelchuk; Micha? Horodecki; Jonathan Oppenheim

2012-12-13T23:59:59.000Z

370

Efficient White SSL Component for General Illumination  

SciTech Connect (OSTI)

Cree has developed a new, high-efficiency, low-cost, light emitting diode (LED) module that should be capable of replacing standard, halogen, fluorescent and metal halide lamps based on the total cost of ownership. White LEDs are produced by combining one or more saturated color LEDs with a phosphor or other light down-converting media to achieve white broad-band illumination. This two year project addressed LED chip, package and phosphor efficiency improvements to establish a technology platform suitable for low-cost, high-efficiency commercial luminaires. New phosphor materials with improved quantum efficiency at 'real-life' operating conditions were developed along with new package technology to improve the efficiency of warm white LED modules compared to the baseline technology. Specifically, Cree has successfully demonstrated warm white LED modules providing 540 lumens at a correlated color temperature (CCT) of 3000 K. The LED module had an efficacy of 102.8 lumens per watt (LPW) using 1 mm2 chips biased at 350 mA - a 27% improvement over the technology at project start (81 LPW at 3000K). The white modules also delivered an efficacy of 88 LPW at elevated junction temperatures of 125 C. In addition, a proof-of-concept 4-inch downlight luminaire produced a flux of 1183 lumens at a CCT of 2827 K and a color rendering index (CRI) of 80 using this project's phosphor developments.

Sean Evans

2011-01-31T23:59:59.000Z

371

Generalized isospin, generalized mass groups, and generalized Gell-Mann--Okubo formalism  

E-Print Network [OSTI]

The current concepts of isospin and baryon mass groups are only well-adapted to deal with baryon multiplets involving both the u and d quarks, and some other quark k. In this paper, we generalize isospin and mass groups to accommodate baryon multiplets involving quarks of any flavor, and the Gell-Mann--Okubo (GMO) formalism is generalized accordingly. Generalized isospin proves to be a simple and valuable framework when working in non-udk baryon multiplets, and provides new quantum numbers that allows us to distinguish \\Lambda-like baryons from \\Sigma-like baryons in the non-udk multiplets. The generalized GMO formalism allows us to quantify the quality of flavor symmetries seen in baryon multiplets, and also allows us to predict the masses of all observable J^P = 1/2^+ and 3/2^+ baryons with an estimated accuracy on the order of 50 MeV in the worst cases, on mass scales that span anywhere from 1000 MeV to 15000 MeV.

Beaudoin, N; Sandapen, R

2013-01-01T23:59:59.000Z

372

Generalized parton distributions in nuclei  

SciTech Connect (OSTI)

Generalized parton distributions (GPDs) of nuclei describe the distribution of quarks and gluons in nuclei probed in hard exclusive reactions, such as e.g. deeply virtual Compton scattering (DVCS). Nuclear GPDs and nuclear DVCS allow us to study new aspects of many traditional nuclear effects (nuclear shadowing, EMC effect, medium modifications of the bound nucleons) as well as to access novel nuclear effects. In my talk, I review recent theoretical progress in the area of nuclear GPDs.

Vadim Guzey

2009-12-01T23:59:59.000Z

373

A Generalization of Deutsch's Example  

E-Print Network [OSTI]

Quantum parallelism is the main feature of quantum computation. In 1985 D. Deutsch showed that a single quantum computation may be sufficient to state whether a two-valued function of a two-valued variable is constant or not. Though the generalized problem with unconstrained domain and range size admits no deterministic quantum solution, a fully probabilistic quantum algorithm is presented in which quantum parallelism is harnessed to achieve a quicker exploration of the domain with respect to the classical ``sampling'' strategy.

Giovanni Costantini; Fabrizio Smeraldi

1997-02-07T23:59:59.000Z

374

Feature scaling of large, ballasted, field emission arrays  

E-Print Network [OSTI]

Field emitters are an exciting technology for high-frequency, high-power applications because of their excellent free space electron transport, and their potential for high current density and high current, especially when ...

Guerrera, Stephen A. (Stephen Angelo)

2011-01-01T23:59:59.000Z

375

Project Profile: Innovative Ballasted Flat Roof Solar Photovoltaic...  

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

alone cost about 0.95 per watt for rooftop installations. Cascade is developing a plastic-based photovoltaic (PV) racking system that reduces mechanical and electrical labor,...

376

Performance of Geogrid Reinforced Ballast under Dynamic Loading  

E-Print Network [OSTI]

string pot versus dynamic loading at 1100 psi (9 psi tie bearing pressure) 37 4.1.3 East string pot versus dynamic loading at 2500 psi (21 psi tie bearing pressure) 38 4.1.4 East string pot versus dynamic loading at 3500 psi (31 psi tie bearing pressure...) 39 4.1.5 East string pot versus dynamic loading at 4500 psi (38 psi tie bearing pressure) 41 4.1.6 East string pot versus dynamic loading at 4500 psi (soaked) (40 psi tie bearing pressure) 43 4.2 Unreinforced test 45 4.2.1 West string pot 45 4...

Jowkar, Milad

2011-12-31T23:59:59.000Z

377

Replacing Incandescent Lightbulbs and Ballasts | Department of Energy  

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

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

378

Project Profile: Innovative Ballasted Flat Roof Solar Photovoltaic Racking  

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

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

379

Replacing Incandescent Lightbulbs and Ballasts | Department of Energy  

Energy Savers [EERE]

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious RankCombustion |EnergyonSupport0.pdf5Post-Holiday HolidayProcessRateofofRenewable EnergyRenewable

380

Covered Product Category: Fluorescent Ballasts | Department of Energy  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:Year in Review: Top FiveDepartmentfor EngineeringDepartment ofBoilersData CenterDepartment

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


381

Research Laboratories General Motors Corporation General Motors Technical Center  

Office of Legacy Management (LM)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) "ofEarlyEnergyDepartment ofDepartment ofof EnergyYou$0.C. 20545 OCT 28 1%AU62 &REFHRYO 4q.w -'General

382

From General Mechanics to General Motors: Lynn Gantt's EcoCAR Experience  

Broader source: Energy.gov [DOE]

How Lynn Gantt’s EcoCAR experience took him from studying general mechanics to working at General Motors.

383

Accelerator experiments contradicting general relativity  

E-Print Network [OSTI]

The deflection of gamma-rays in Earth's gravitational field is tested in laser Compton scattering at high energy accelerators. Within a formalism connecting the bending angle to the photon's momentum it follows that detected gamma-ray spectra are inconsistent with a deflection magnitude of 2.78 nrad, predicted by Einstein's gravity theory. Moreover, preliminary results for 13-28 GeV photons from two different laboratories show opposite - away from the Earth - deflection, amounting to 33.8-0.8 prad. I conclude that general relativity, which describes gravity at low energies precisely, break down at high energies.

Vahagn Gharibyan

2014-07-12T23:59:59.000Z

384

Generalized Superconductors and Holographic Optics  

E-Print Network [OSTI]

We study generalized holographic s-wave superconductors in four dimensional R-charged black hole and Lifshitz black hole backgrounds, in the probe limit. We first establish the superconducting nature of the boundary theories, and then study their optical properties. Numerical analysis indicates that a negative Depine-Lakhtakia index may appear at low frequencies in the theory dual to the R-charged black hole, for certain temperature ranges, for specific values of the charge parameter. The corresponding cut-off values for these are numerically established in several cases. Such effects are seen to be absent in the Lifshitz background where this index is always positive.

Subhash Mahapatra; Prabwal Phukon; Tapobrata Sarkar

2014-03-31T23:59:59.000Z

385

The thermodynamics of general anesthesia  

E-Print Network [OSTI]

It is known that the action of general anesthetics is proportional to their partition coefficient in lipid membranes (Meyer-Overton rule). This solubility is, however, directly related to the depression of the temperature of the melting transition found close to body temperature in biomembranes. We propose a thermodynamic extension of the Meyer-Overton rule which is based on free energy changes in the system and thus automatically incorporates the effects of melting point depression. This model provides a quantitative explanation of the pressure reversal of anesthesia. Further, it explains why inflammation and the addition of divalent cations reduce the effectiveness of anesthesia.

Heimburg, T; Heimburg, Thomas; Jackson, Andrew D.

2006-01-01T23:59:59.000Z

386

A Generalized Coupon Collector Problem  

E-Print Network [OSTI]

This paper provides analysis to a generalized version of the coupon collector problem, in which the collector gets $d$ distinct coupons each run and she chooses the one that she has the least so far. On the asymptotic case when the number of coupons $n$ goes to infinity, we show that on average $\\frac{n\\log n}{d} + \\frac{n}{d}(m-1)\\log\\log{n}+O(mn)$ runs are needed to collect $m$ sets of coupons. An efficient exact algorithm is also developed for any finite case to compute the average needed runs exactly. Numerical examples are provided to verify our theoretical predictions.

Xu, Weiyu

2010-01-01T23:59:59.000Z

387

General Questions | Department of Energy  

Office of Environmental Management (EM)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) " ,"ClickPipelinesProvedDecember 2005DepartmentDecember U.S.FinancialofFuelDepartment ofGeneral Questions

388

General Directions to the Hotel  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: Vegetation ProposedUsingFun with Big Sky Learning Fun withGenepool QuarterlyGeneral

389

Major General Kenneth David Nichols  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: VegetationEquipment Surfaces and InterfacesAdministration -Lowellfor 2013 | JeffersonDepartmentGeneral

390

A general purpose microprogrammable emulator  

E-Print Network [OSTI]

/HEAD. MICRO/MACRO T IMNG DUMP. EXEC and END. Simulation Time Commands All Functions PRT Field . V CONCLUSION. REFERENCES APPENDIX A CONSOLIDATED CODING SHEET 8 NOVA EMULATION. C PROGRAM LISTING VITA PAGE 6 10 16 19 19 21 23 23 42 42 44... interconnection scheme 1. PAGE 10 6 Arbitrary interconnection scheme 2. Generalized bus structured CPU. Typical bus structured CPU. Microprogrammed control signal transfer 12 14 15 18 10 12 13 14 15 16 17 18 19 20 21 Logic diagram and block...

Adams, James Monroe

2012-06-07T23:59:59.000Z

391

Das Prfzentrum Carsten Lampe, Daniel Eggert,  

E-Print Network [OSTI]

Kalibrierlaboratorien" · Qualitätswesen analog den Anforderungen der ISO 9001 z.B. Sensorkalibriersystem / Dokumentation Prüfinstitut (durch DGWK, heute DIN CERTCO) · Seit 2003 ISO/IEC 17025 akkreditiert · Seit 2003 Prüfungen und;4 Was verlangt die Akkreditierung? ISO IEC 17025 ,,Allgemeine Anforderungen an die Kompetenz von Prüf- und

392

High frequency inductive lamp and power oscillator  

DOE Patents [OSTI]

An oscillator includes an amplifier having an input and an output, a feedback network connected between the input of the amplifier and the output of the amplifier, the feedback network being configured to provide suitable positive feedback from the output of the amplifier to the input of the amplifier to initiate and sustain an oscillating condition, and a tuning circuit connected to the input of the amplifier, wherein the tuning circuit is continuously variable and consists of solid state electrical components with no mechanically adjustable devices including a pair of diodes connected to each other at their respective cathodes with a control voltage connected at the junction of the diodes. Another oscillator includes an amplifier having an input and an output, a feedback network connected between the input of the amplifier and the output of the amplifier, the feedback network being configured to provide suitable positive feedback from the output of the amplifier to the input of the amplifier to initiate and sustain an oscillating condition, and transmission lines connected to the input of the amplifier with an input pad and a perpendicular transmission line extending from the input pad and forming a leg of a resonant "T", and wherein the feedback network is coupled to the leg of the resonant "T".

Kirkpatrick, Douglas A.; Gitsevich, Aleksandr

2005-09-27T23:59:59.000Z

393

Max Tech and Beyond: Fluorescent Lamps  

E-Print Network [OSTI]

contain one or more rare earth elements in their chemicalcomposition. The rare earth elements are a collection of

Scholand, Michael

2012-01-01T23:59:59.000Z

394

Retail Replacement Lamps | Department of Energy  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) "ofEarly Career Scientists' Research |Regulation Services System:Affairs,HowReporting andAnnual CALiPER testing

395

LED MR16 Lamps | Department of Energy  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) "ofEarly Career Scientists'Montana.ProgramJulietipDepartmentJuneWhen IAjani Stewartand Usage ofJ.All of

396

LED PAR38 Lamps | Department of Energy  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) "ofEarly Career Scientists'Montana.ProgramJulietipDepartmentJuneWhen IAjani Stewartand Usage ofJ.All ofreports

397

DEFINING THE EFFECTIVENESS OF UV LAMPS  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: Vegetation Proposed Newcatalyst phases onOrganization FY 2012JDABench-Scale8TBDARTI-21CR/610-40030-01

398

Generalized helicity and Beltrami fields  

SciTech Connect (OSTI)

We propose covariant and non-abelian generalizations of the magnetic helicity and Beltrami equation. The gauge invariance, variational principle, conserved current, energy–momentum tensor and choice of boundary conditions elucidate the subject. In particular, we prove that any extremal of the Yang–Mills action functional 1/4 ?{sub ?}trF{sub ??}F{sup ??}d{sup 4}x subject to the local constraint ?{sup ????}trF{sub ??}F{sub ??}=0 satisfies the covariant non-abelian Beltrami equation. -- Highlights: •We introduce the covariant non-abelian helicity and Beltrami equation. •The Yang–Mills action and instanton term constraint lead to the Beltrami equation. •Solutions of the Beltrami equation conserve helicity.

Buniy, Roman V., E-mail: roman.buniy@gmail.com [Schmid College of Science, Chapman University, Orange, CA 92866 (United States); Isaac Newton Institute, University of Cambridge, Cambridge, CB3 0EH (United Kingdom); Kephart, Thomas W., E-mail: tom.kephart@gmail.com [Department of Physics and Astronomy, Vanderbilt University, Nashville, TN 37235 (United States); Isaac Newton Institute, University of Cambridge, Cambridge, CB3 0EH (United Kingdom)

2014-05-15T23:59:59.000Z

399

White Light Emitting Diode Development for General Illumination Applications  

SciTech Connect (OSTI)

This report contains a summary of technical achievements during a 3-year project aimed at developing the chip and packaging technology necessary to demonstrate efficient, high flux light-emitting diode (LED) arrays using Cree's gallium nitride/silicon carbide (GaN/SiC) LED technology as the starting point. Novel chip designs and fabrication processes are described that led to high power blue LEDs that achieved 310 mW of light output at 350 mA drive current, corresponding to quantum and wall plug efficiencies of 32.5% and 26.5%, respectively. When combined with phosphor, high power white LEDs with luminous output of 67 lumens and efficacy of 57 lumens per watt were also demonstrated. Advances in packaging technology are described that enabled compact, multi-chip white LED lamp modules with 800-1000 lumens output at efficacies of up to 55 lumens per watt. Lamp modules with junction-to-ambient thermal resistance as low as 1.7 C/watt have also been demonstrated.

James Ibbetson

2006-05-01T23:59:59.000Z

400

The Integrated Classroom Lighting System (ICLS) is designed for use in general-purpose classrooms at the K-12 through university level. Further, ICLS has applications in a wide range of conference rooms and  

E-Print Network [OSTI]

cartons improves installation times and reduces jobsite waste. Use and Care Manual Every classroom warranty, we will provide a single source warranty on all ICLS electronic and interconnection components energy usage and light output · ICLS is available with 0.77, 0.88, and 1.18 ballast factor electronic

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


401

Degenerate Extensions of General Relativity  

E-Print Network [OSTI]

General relativity has previously been extended to incorporate degenerate metrics using Ashtekar's hamiltonian formulation of the theory. In this letter, we show that a natural alternative choice for the form of the hamiltonian constraints leads to a theory which agrees with GR for non-degenerate metrics, but differs in the degenerate sector from Ashtekar's original degenerate extension. The Poisson bracket algebra of the alternative constraints closes in the non-degenerate sector, with structure functions that involve the {\\it inverse} of the spatial triad. Thus, the algebra does {\\it not} close in the degenerate sector. We find that it must be supplemented by an infinite number ofsecondary constraints, which are shown to be first class (although their explicit form is not worked out in detail). All of the constraints taken together are implied by, but do not imply, Ashtekar's original form of constraints. Thus, the alternative constraints give rise to a different degenerate extension of GR. In the corresponding quantum theory, the single loop and intersecting loop holonomy states found in the connection representation satisfy {\\it all} of the constraints. These states are therefore exact (formal) solutions to this alternative degenerate extension of quantum gravity, even though they are {\\it not} solutions to the usual vector constraint.

Ted Jacobson; Joseph D. Romano

1992-07-23T23:59:59.000Z

402

General Construction Company Private Development Procedure  

E-Print Network [OSTI]

administration and subcontractor management in the execution of each project. General’s current operations are very conducive to private development. However, the company can no longer rely on an oral system to relay historical processes and procedures...

Eason, Scott W.

2006-05-19T23:59:59.000Z

403

The generalized Schrödinger–Langevin equation  

SciTech Connect (OSTI)

In this work, for a Brownian particle interacting with a heat bath, we derive a generalization of the so-called Schrödinger–Langevin or Kostin equation. This generalization is based on a nonlinear interaction model providing a state-dependent dissipation process exhibiting multiplicative noise. Two straightforward applications to the measurement process are then analyzed, continuous and weak measurements in terms of the quantum Bohmian trajectory formalism. Finally, it is also shown that the generalized uncertainty principle, which appears in some approaches to quantum gravity, can be expressed in terms of this generalized equation. -- Highlights: •We generalize the Kostin equation for arbitrary system–bath coupling. •This generalization is developed both in the Schrödinger and Bohmian formalisms. •We write the generalized Kostin equation for two measurement problems. •We reformulate the generalized uncertainty principle in terms of this equation.

Bargueńo, Pedro, E-mail: p.bargueno@uniandes.edu.co [Departamento de Física, Universidad de los Andes, Apartado Aéreo 4976, Bogotá, Distrito Capital (Colombia); Miret-Artés, Salvador, E-mail: s.miret@iff.csic.es [Instituto de Física Fundamental, CSIC, Serrano 123, 28006, Madrid (Spain)

2014-07-15T23:59:59.000Z

404

Interacting holographic generalized Chaplygin gas model  

E-Print Network [OSTI]

In this paper we consider a correspondence between the holographic dark energy density and interacting generalized Chaplygin gas energy density in FRW universe. Then we reconstruct the potential of the scalar field which describe the generalized Chaplygin cosmology.

M. R. Setare

2007-08-01T23:59:59.000Z

405

RECYCLING AND GENERAL WASTE MANAGEMENT OPERATIONAL PROCEDURE  

E-Print Network [OSTI]

RECYCLING AND GENERAL WASTE MANAGEMENT OPERATIONAL PROCEDURE Swansea University Estates Services.6.1/1 Recycling & General Waste Management Department: Estates & Facilities Management Site: Swansea University recycling and waste management facilities in Swansea university To ensure that Waste Management Objectives

Harman, Neal.A.

406

A Generalization of A Leibniz Geometrical Theorem  

E-Print Network [OSTI]

In this article we present a generalization of a Leibniz's geometrical theorem and an application of it.

Mihaly Bencze; Florin Popovici; Florentin Smarandache

2007-10-01T23:59:59.000Z

407

Conservation laws for a general Lorentz connection  

E-Print Network [OSTI]

We derive conservation laws for energy-momentum (canonical and dynamical) and angular momentum for a general Lorentz connection.

Nikodem J. Poplawski

2007-11-15T23:59:59.000Z

408

Computable General Equilibrium Models for Sustainability Impact...  

Open Energy Info (EERE)

Screenshot References: Computable general equilibrium models1 Abstract "Sustainability Impact Assessment (SIA) of economic, environmental, and social effects triggered by...

409

An implicit numerical algorithm general relativistic hydrodynamics  

E-Print Network [OSTI]

An implicit numerical algorithm general relativistic hydrodynamics This article has been replaced by arXiv:0801.1017

A. Hujeirat

2008-01-09T23:59:59.000Z

410

SEISMIC IMAGING WITH THE GENERALIZED RADON ...  

E-Print Network [OSTI]

SEISMIC IMAGING WITH THE GENERALIZED RADON. TRANSFORM AND DOUBLE BEAMFORMING: A CURVELET. TRANSFORM PERSPECTIVE. M V DE ...

2008-07-29T23:59:59.000Z

411

Compact light source performance in recessed type luminaires  

SciTech Connect (OSTI)

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

Hammer, E.E.

1998-11-01T23:59:59.000Z

412

Lighting energy management in industrial plants  

SciTech Connect (OSTI)

This paper provides some guidance to assist plant managers and engineers in managing their light energy problems. Incandescent, flourescent, and high-intensity discharge lamps are compared. Flourescent is still predominant, incandescent is not recommended-and HID is rapidly gaining favor. Lamp life and lumen depreciation must be determined. Light loss factors which are not recoverable are: luminaire ambient temperature, voltage to the luminaire, ballast factor, and luminaire surface dirt depreciation. Light loss factors which can be recovered by plant maintainence are: room surface dirt depreciation, lamp failures, lamp lumen depreciation, and luminaire dirt depreciation. A method to determine the savings that may result from group relamping versus spot replacement is given. Finally, energy management steps, to maximize performance, are listed.

Bachler, J.M.

1982-06-01T23:59:59.000Z

413

General Electric Company Oahu Wind Integration Study  

E-Print Network [OSTI]

General Electric Company Oahu Wind Integration Study Final Report Delivered to: Richard Rocheleau-956-8346 e-mail: rochelea@hawaii.edu General Electric Company (in alphabetical order) Sebastian Achilles Date: December 16 2010 #12;2 Legal Notices This report was prepared by the General Electric Company (GE

414

Another Generalization of Wiener's Attack on RSA  

E-Print Network [OSTI]

Another Generalization of Wiener's Attack on RSA Abderrahmane NITAJ Universit´e de Caen, France Casablanca, June 12, 2008 Abderrahmane NITAJ Another Generalization of Wiener's Attack on RSA #12;RSA and Wiener The new attack Conclusion RSA setting Wiener's attack Generalizations Colour conventions Red

Nitaj, Abderrahmane

415

Peak Power Reduction Strategies for the Lighting Systems in Government Buildings  

E-Print Network [OSTI]

PEAK POWER REDUCTION STRATEGIES FOT THE LIGHTING SYSTEMS IN GOVERNMENT BUILDINGS Dina AlNakib CLEP, Dr. Ahmad Al-Mulla CEM, Gopal Maheshwari Department of Building and Energy Technologies Environment and Urban Development Division Kuwait... begins at 7:30 h and ends between 14:00 and 15:30 h. Lighting systems in MC building comprise mostly of T12 fluorescent tubes with magnetic ballasts, compact fluorescent lamps (CFLs) and incandescent lamps with a total connected load of 2,900 k...

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

2010-01-01T23:59:59.000Z

416

Analysis and corrective measures for forced commutated cycloconverters(FCC'S) under unbalance  

E-Print Network [OSTI]

for motion control, robotics; Variable v'oltage, fixed frequency uninterruptable power for critical loads; High frequency applications include induction heating, electronic ballasts for fluorescent lamps, battery chargers; Controllable Var generators... intervals between the input and output terminals. The control determines the durations of the conduction int, ervals Three phase Input of Fixed voltage Fixed frequency Fo ce commut. ated Cycloconverr. er)FCC) 51 Three phase output of Variable...

Wang, Xucheng

1991-01-01T23:59:59.000Z

417

Transformation of paraxial matrices at a general interface between two general media  

E-Print Network [OSTI]

Transformation of paraxial matrices at a general interface between two general media Ludek Klimes for transforming these paraxial matrices at a general smooth interface between two general media. The transformation equations are applicable to both real­valued and complex­valued paraxial matrices. The equations

Cerveny, Vlastislav

418

General Relativistic Thermoelectric Effects in Superconductors  

E-Print Network [OSTI]

We discuss the general-relativistic contributions to occur in the electromagnetic properties of a superconductor with a heat flow. The appearance of general-relativistic contribution to the magnetic flux through a superconducting thermoelectric bimetallic circuit is shown. A response of the Josephson junctions to a heat flow is investigated in the general-relativistic framework. Some gravitothermoelectric effects which are observable in the superconducting state in the Earth's gravitational field are considered.

B. J. Ahmedov

2007-01-13T23:59:59.000Z

419

FAQS Reference Guide – General Technical Base  

Broader source: Energy.gov [DOE]

This reference guide addresses the competency statements in the December 2007 edition of DOE-STD-1146-2007, General Technical Base Functional Area Qualification Standard.

420

Hazardous Waste Management System-General (Ohio)  

Broader source: Energy.gov [DOE]

This chapter of the law establishes that the Ohio Environmental Protection Agency provides general regulations regarding hazardous waste, including landfills. Specific passages refer to the...

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


421

Optimization Online - Variational principles with generalized ...  

E-Print Network [OSTI]

Dec 23, 2014 ... Variational principles with generalized distances and applications to behavioral sciences. T. Q. Bao(btruong ***at*** nmu.edu)

T. Q. Bao

2014-12-23T23:59:59.000Z

422

General Engineer / Physical Scientist (Classification Analyst)  

Broader source: Energy.gov [DOE]

A successful candidate in this position will serve as a General Engineer or Physical Scientist in the Materials Control & Accountability and Information Security Branch, Office of Assistant...

423

Interdisciplinary General Engineer/Physical Scientist  

Broader source: Energy.gov [DOE]

A successful candidate in this position will serve as an Interdisciplinary General Engineer/Physical Scientist supporting advanced lightweight materials technology development and manufacturing...

424

EPA Indian Environmental General Assistance Program  

Broader source: Energy.gov [DOE]

The U.S. Environmental Protection Agency (EPA) is seeking grant proposals for the Indian Environmental General Assistance Program (GAP) for FY 2016 work plan program development activities.

425

Cooperation with the Office of Inspector General  

Broader source: Directives, Delegations, and Requirements [Office of Management (MA)]

To establish responsibilities and requirements for cooperating with the Department of Energy Office of Inspector General. Cancels DOE O 221.2.

2008-02-25T23:59:59.000Z

426

Modeling International Relationships in Applied General Equilibrium...  

Open Energy Info (EERE)

Relationships in Applied General Equilibrium (MIRAGE) AgencyCompany Organization: International Food Policy Research Institute, Centre d'Etudes Prospectives et d'Informations...

427

Cost of Fuel to General Electricity  

Broader source: Energy.gov [DOE]

Presentation covers the topic of the cost of fuel to general electricity for the Federal Utility Partnership Working Group (FUPWG) meeting, held on November 18-19, 2009.

428

General noncommuting curvilinear coordinates and fluid Mechanics  

E-Print Network [OSTI]

We show that restricting the states of a charged particle to the lowest Landau level introduces noncommutativity between general curvilinear coordinate operators. The cartesian, circular cylindrical and spherical polar coordinates are three special cases of our quite general method. The connection between U(1) gauge fields defined on a general noncommuting curvilinear coordinates and fluid mechanics is explained. We also recognize the Seiberg-Witten map from general noncommuting to commuting variables as the quantum correspondence of the Lagrange to Euler map in fluid mechanics.

S. A. Alavi

2006-08-16T23:59:59.000Z

429

Environmental Impact and Sustainability Applied General Equilibrium...  

Open Energy Info (EERE)

Equilibrium Model (ENVISAGE) Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Environmental Impact and Sustainability Applied General Equilibrium Model (ENVISAGE)...

430

Statler College Scheduling Guidelines General Procedures  

E-Print Network [OSTI]

Statler College Scheduling Guidelines General Procedures Basic event information needed o Event Procedures Basic event information needed o Event name o Contact name, phone, email o expected number

Mohaghegh, Shahab

431

Chapter 63 General Standards of Performance (Kentucky)  

Broader source: Energy.gov [DOE]

Kentucky Administrative Regulation Chapter 63, entitled Air Quality: General Standards of Performance, is promulgated under the authority of the Division of Air Quality within the Energy and...

432

EPA - National Pollutant Discharge Elimination System General...  

Open Energy Info (EERE)

General Permit for Discharges from Construction Activities Jump to: navigation, search OpenEI Reference LibraryAdd to library PermittingRegulatory Guidance - GuideHandbook: EPA -...

433

Discrete generalized multigroup theory and applications  

E-Print Network [OSTI]

This study develops a fundamentally new discrete generalized multigroup energy expansion theory for the linear Boltzmann transport equation. Discrete orthogonal polynomials are used, in conjunction with the traditional ...

Zhu, Lei, Ph. D. Massachusetts Institute of Technology

2012-01-01T23:59:59.000Z

434

General Counsel (WFP) | Department of Energy  

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

today and in the future. General Counsel Responsible Contacts Thomas Wheeler Director, Workforce Analysis & Planning Division E-mail thomas.wheeler@hq.doe.gov Phone (202)...

435

Inspector General (WFP) | Department of Energy  

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

today and in the future. Inspector General Responsible Contacts Thomas Wheeler Director, Workforce Analysis & Planning Division E-mail thomas.wheeler@hq.doe.gov Phone (202)...

436

Cooperation with the Office of Inspector General  

Broader source: Directives, Delegations, and Requirements [Office of Management (MA)]

To establish Department of Energy (DOE) policy for cooperating with the Office of Inspector General (OIG). Cancels DOE 2320.1C

2001-03-21T23:59:59.000Z

437

Oil and Gas General Provisions (Montana)  

Broader source: Energy.gov [DOE]

This chapter describes general provisions for the exploration and development of oil and gas resources in Montana. The chapter addresses royalty interests, regulations for the lease of local...

438

Generalized genetical genomics : advanced methods and applications.  

E-Print Network [OSTI]

??Generalized genetical genomics (GGG) is a systems genetics approach that combines the analysis of genetic variation with population-wide assessment of variation in molecular traits in… (more)

Li, Yang

2010-01-01T23:59:59.000Z

439

Washington Energy Facility Site Evalutation Council - Generalized...  

Open Energy Info (EERE)

Washington Energy Facility Site Evalutation Council - Generalized Siting Process Jump to: navigation, search OpenEI Reference LibraryAdd to library Chart: Washington Energy...

440

Retail Lamps Study 3.2: Lumen and Chromaticity Maintenance of LED A Lamps  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) "ofEarly Career Scientists' Research |Regulation Services System:Affairs,HowReporting and

Note: This page contains sample records for the topic "lamp ballasts general" from the National Library of EnergyBeta (NLEBeta).
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We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


441

Metering Schemes for General Access Structures  

E-Print Network [OSTI]

Metering Schemes for General Access Structures Barbara Masucci Dipartimento di Informatica ed, Canada E­mail: dstinson@cacr.math.uwaterloo.ca Abstract A metering scheme is a method by which an audit time frame. In this paper we construct metering schemes for more general access structures, which

Stinson, Douglas

442

ENVIRONMENTAL HEALTH AND SAFETY GENERAL SAFETY MANUAL  

E-Print Network [OSTI]

ENVIRONMENTAL HEALTH AND SAFETY GENERAL SAFETY MANUAL May 10, 2002 #12;i Acknowledgements Environmental Health and Safety gratefully acknowledges the assistance provided by the University Safety Council extremely helpful. #12;ii Environmental Health and Safety General Safety Manual Table of Contents Section

Maroncelli, Mark

443

IBL General Meeting 1 November 6, 2009  

E-Print Network [OSTI]

Meeting 4 AOC 10 Gb/s VCSEL irradiation annealing w/o long twisted/ coiled fiber Good optical power;IBL General Meeting 11 Summary AOC 10 Gb/s arrays have good optical power after irradiation hardness of VCSELs Summary K.K. Gan #12;IBL General Meeting 3 850 nm VCSEL Irradiation 2006-7: !~2

Gan, K. K.

444

GENERAL PROVISIONS Section 1-1 Definitions.  

E-Print Network [OSTI]

for Research; and University General Counsel and Vice President for Legal Affairs. i. "Chancellors" means1-1 CHAPTER 1 GENERAL PROVISIONS Section 1-1 Definitions. The words and phrases in the Board of these principles, laws and policies once approved by the Board. Therefore, the interpretation of all Board policies

445

General Restaurant Equipment: Order (2013-CE-5344)  

Broader source: Energy.gov [DOE]

DOE ordered General Restaurant Equipment Co. to pay a $8,000 civil penalty after finding General Restaurant Equipment had failed to certify that certain models of walk-in cooler and freezer components comply with the applicable energy conservation standards.

446

IIT Office of General Counsel Education Program  

E-Print Network [OSTI]

IIT Office of General Counsel Education Program Issues Involving Disabled Students #12;Introduction person" in the general population, e.g., walking, talking, bathing, seeing, hearing, learning? #12 are essential to the program. #12;Reasonable accommodation. Auxiliary aids: taped texts interpreters readers

Heller, Barbara

447

APPALACHIAN STATE UNIVERSITY OFFICE OF GENERAL COUNSEL  

E-Print Network [OSTI]

APPALACHIAN STATE UNIVERSITY OFFICE OF GENERAL COUNSEL MEMORANDUM TO: Faculty and Staff FROM: Dayton T. Cole, General Counsel DATE: October 22, 2013 SUBJECT: Political Activity [Please print and post Resources website: http://hrs.appstate.edu/announcements/552. Questions concerning the interpretation

Thaxton, Christopher S.

448

A Generalized Vlasov Theory for Composite Beams  

E-Print Network [OSTI]

A Generalized Vlasov Theory for Composite Beams Wenbin Yu, Department of Mechanical and Aerospace-0150 Abstract A generalized Vlasov theory for composite beams with arbitrary geometric and material sectional properties is developed based on the variational asymptotic beam sectional analysis. Instead of invoking ad

Yu, Wenbin

449

Nondestructive Damage Detection in General Beams  

E-Print Network [OSTI]

is to provide NDE methodologies that simultaneously identify the location, the extent, and the severity of damage in general beams. By general beams, we mean beyond Euler-Bernoulli beams (i.e. slender beams) to deep beams and stubby beams whose response may...

Dincal, Selcuk

2010-12-08T23:59:59.000Z

450

ORIGINAL PAPER A general theory of ecology  

E-Print Network [OSTI]

ORIGINAL PAPER A general theory of ecology Samuel M. Scheiner & Michael R. Willig Received: 9 of ecology have existed for the past half century; ecologists simply have failed to explicitly recognize them. We present a general theory of ecology and show how it relates to ecology's numerous constituent

Willig, Michael

451

THE GENERALIZED POVERTY INDEX GANE SAMB LO  

E-Print Network [OSTI]

THE GENERALIZED POVERTY INDEX GANE SAMB LO Abstract. We introduce the General Poverty Index (GPI), which summarizes most of the known and availbale poverty indices, in the form GPI = ( A(Q, N, Z) NB(Q, N (·) are given measurable functions, Q is the number of the poor in the population P of size N, Z is the poverty

452

FCEDS General Education Requirements (Updated 2013)  

E-Print Network [OSTI]

FCEDS General Education Requirements (Updated 2013) This proposal outlines a plan that would allow a transfer student to apply an Associate of Arts or Associate of Science degree to meet the General Education requirements of the Family and Consumer Sciences Education and Studies (FCEDS) curriculum. The required

Mayfield, John

453

Rotating figures of equilibrium in General Relativity  

E-Print Network [OSTI]

A generalization of the notion of surfaces of revolution in the spaces of General Relativity is presented. We apply this definition to the case of Carter's family [A] of solutions and we study the Kerr's metric with respect the above mentioned foliation.

T. Papakostas

2005-11-15T23:59:59.000Z

454

General Adaptive Replacement Policies Yannis Smaragdakis  

E-Print Network [OSTI]

General Adaptive Replacement Policies Yannis Smaragdakis College of Computing Georgia Institute of Technology yannis@cc.gatech.edu ABSTRACT We propose a general scheme for creating adaptive replace- ment any two existing replacement policies so that the resulting policy provably can never perform worse

Smaragdakis, Yannis

455

Generalized Graph States Based on Hadamard Matrices  

E-Print Network [OSTI]

Graph states are widely used in quantum information theory, including entanglement theory, quantum error correction, and one-way quantum computing. Graph states have a nice structure related to a certain graph, which is given by either a stabilizer group or an encoding circuit, both can be directly given by the graph. To generalize graph states, whose stabilizer groups are abelian subgroups of the Pauli group, one approach taken is to study non-abelian stabilizers. In this work, we propose to generalize graph states based on the encoding circuit, which is completely determined by the graph and a Hadamard matrix. We study the entanglement structures of these generalized graph states, and show that they are all maximally mixed locally. We also explore the relationship between the equivalence of Hadamard matrices and local equivalence of the corresponding generalized graph states. This leads to a natural generalization of the Pauli $(X,Z)$ pairs, which characterizes the local symmetries of these generalized graph states. Our approach is also naturally generalized to construct graph quantum codes which are beyond stabilizer codes.

Shawn X Cui; Nengkun Yu; Bei Zeng

2015-02-25T23:59:59.000Z

456

PIA - WEB Unclassified Business Operations General Support System...  

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

Unclassified Business Operations General Support System PIA - WEB Unclassified Business Operations General Support System PIA - WEB Unclassified Business Operations General Support...

457

Reconciliation of generalized refraction with diffraction theory  

E-Print Network [OSTI]

When an electromagnetic wave is obliquely incident on the interface between two homogeneous media with different refractive indices, the requirement of phase continuity across the interface generally leads to a shift in the trajectory of the wave. When a linearly position dependent phase shift is imposed at the interface, the resulting refraction may be described using a generalized version of Snell's law. In this Letter, we establish a formal equivalence between generalized refraction and blazed diffraction gratings, further discussing the relative merits of the two approaches.

Larouche, Stéphane

2012-01-01T23:59:59.000Z

458

Evolution of Structures in Generalized Gravity Theories  

E-Print Network [OSTI]

A broad class of generalized Einstein's gravity can be cast into Einstein's gravity with a minimally coupled scalar field using suitable conformal rescaling of the metric. Using this conformal equivalence between the theories, we derive the equations for the background and the perturbations, and the general asymptotic solutions for the perturbations in the generalized Einstein's gravity from the simple results known in the minimally coupled scalar field. Results for the scalar and tensor perturbations can be presented in unified forms. The large scale evolutions for both modes are characterized by corresponding conserved quantities. We also present the normalization condition for canonical quantization.

J. Hwang

1996-05-12T23:59:59.000Z

459

Self-Similarity in General Relativity \\endtitle  

E-Print Network [OSTI]

The different kinds of self-similarity in general relativity are discussed, with special emphasis on similarity of the ``first'' kind, corresponding to spacetimes admitting a homothetic vector. We then survey the various classes of self-similar solutions to Einstein's field equations and the different mathematical approaches used in studying them. We focus mainly on spatially homogenous and spherically symmetric self-similar solutions, emphasizing their possible roles as asymptotic states for more general models. Perfect fluid spherically symmetric similarity solutions have recently been completely classified, and we discuss various astrophysical and cosmological applications of such solutions. Finally we consider more general types of self-similar models.

B. J. Carr; A. A. Coley

1998-06-09T23:59:59.000Z

460

6/06/09 BA in General Biology Bachelor of Arts in General Biology  

E-Print Network [OSTI]

6/06/09 BA in General Biology Bachelor of Arts in General Biology Department of Biology College of Science and Engineering Undergraduate Programs Students majoring in the General Biology degree program are required to complete 57 units in the major. In addition to the biological science courses, it includes

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


461

2014-12-05 Issuance: Energy Conservation Standard for General Service  

Energy Savers [EERE]

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious RankCombustionImprovement3 Beryllium-Associated Worker2014 HouseCoveredAir ConditionersLamps; Notice of

462

2014-12-30 Issuance: Energy Conservation Standard for General Service  

Energy Savers [EERE]

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious RankCombustionImprovement3 Beryllium-Associated Worker2014 HouseCoveredAir ConditionersLamps;

463

Generalized gravitational entropy without replica symmetry  

E-Print Network [OSTI]

We explore several extensions of the generalized entropy construction of Lewkowycz and Maldacena, including a formulation that does not rely on preserving replica symmetry in the bulk. We show that an appropriately general ansatz for the analytically continued replica metric gives us the flexibility needed to solve the gravitational field equations beyond general relativity. As an application of this observation we study Einstein-Gauss-Bonnet gravity with a small Gauss-Bonnet coupling and derive the condition that the holographic entanglement entropy must be evaluated on a surface which extremizes the Jacobson-Myers entropy. We find that in both general relativity and Einstein-Gauss-Bonnet gravity replica symmetry breaking terms are permitted by the field equations, suggesting that they do not generically vanish.

Joan Camps; William R. Kelly

2015-01-13T23:59:59.000Z

464

The General Postgraduate Program: Workshop Academic Writing  

E-Print Network [OSTI]

The General Postgraduate Program: Workshop Academic Writing Amanda Habbershaw, Translator and English Trainer Course Description Nowadays success in science involves publishing articles the formal English required for scientific and academic texts. The objective of this workshop is to improve

Hanke-Bourgeois, Martin

465

A Generalization of Euler's Theorem on Congruencies  

E-Print Network [OSTI]

We present a theorem which generalizes the classical Euler's theorem on congruencies: if $(a,m)=1$ then $a^ \\phi(m) \\equiv 1 (mod m)$ for the case when $a$ and $m$ are not relatively primes.

Florentin Smarandache

2006-10-20T23:59:59.000Z

466

West Virginia University 1 General Statement  

E-Print Network [OSTI]

West Virginia University 1 Minors General Statement Each academic unit in the University may to assure that completion of a minor is appropriately recognized and posted to the student's transcript: 1

Mohaghegh, Shahab

467

Hamilton Paths in Generalized Petersen Graphs.  

E-Print Network [OSTI]

??This thesis puts forward the conjecture that for n > 3k with k > 2, the generalized Petersen graph, GP(n,k) is Hamilton-laceable if n is… (more)

Pensaert, William

2006-01-01T23:59:59.000Z

468

Luminous Efficacy Standards for General Purpose Lights  

Broader source: Energy.gov [DOE]

Assembly Bill 178, adopted in June 2007, established efficacy* standards for general purpose lights sold in the state of Nevada. The bill set the required efficacy at 25 lumens per watt (lm/W) of...

469

Interdisciplinary Physical Scientist/General Engineer  

Broader source: Energy.gov [DOE]

A successful candidate in this position will serve as an Interdisciplinary Physical Scientist/General Engineer for the Bioenergy Technologies Office in the DOE-EERE Office of Transportation.

470

The Hybrid Generalized Parton Distributions Parametrization  

SciTech Connect (OSTI)

We construct the ERBL region of the unpolarized Generalized Parton Distributions using the phenomenological constraints obtained from recent measurements of the ep{yields}e'{gamma}p reaction, from the nucleon form factor data, and from deep inelastic inclusive measurements.

Ahmad, S. [University of Wisconsin-Whitewater, 800 West Main St., Whitewater, Wisconsin 53190 (United States); Honkanen, H. [Iowa State University, Ames, IA 50011 (United States); Liuti, S. [University of Virginia, 382 McCormick Road, Charlottesville, Virginia 22904 (United States); Taneja, S. K. [Stony Brook, NY (United States)

2009-08-04T23:59:59.000Z

471

DIVISION 6 -WOOD AND PLASTICS 06000 GENERAL  

E-Print Network [OSTI]

DIVISION 6 - WOOD AND PLASTICS ________________________________________________________________________ 06000 GENERAL 1. For both woods and plastics, special attention is called to matters of flame spread-dried. 3. For exterior wood or plastic framed structures, see Division 4 for dimensions of Sample Panel

472

The thermodynamics of general and local anesthesia  

E-Print Network [OSTI]

General anesthetics are known to cause depression of the freezing point of transitions in biomembranes. This is a consequence of ideal mixing of the anesthetic drugs in the membrane fluid phase and exclusion from the solid phase. Such a generic law provides physical justification of the famous Meyer-Overton rule. We show here that general anesthetics, barbiturates and local anesthetics all display the same effect on melting transitions. Their effect is reversed by hydrostatic pressure. Thus, the thermodynamic behavior of local anesthetics is very similar to that of general anesthetics. We present a detailed thermodynamic analysis of heat capacity profiles of membranes in the presence of anesthetics. This analysis is able to describe experimentally observed calorimetric profiles and permits prediction of the anesthetic features of arbitrary molecules. In addition, we discuss the thermodynamic origin of the cutoff-effect of long-chain alcohols and the additivity of the effect of general and local anesthetics.

Graesboll, Kaare; Heimburg, Thomas

2014-01-01T23:59:59.000Z

473

Methylphenidate Actively Induces Emergence from General Anesthesia  

E-Print Network [OSTI]

Background: Although accumulating evidence suggests that arousal pathways in the brain play important roles in emergence from general anesthesia, the roles of monoaminergic arousal circuits are unclear. In this study, the ...

Solt, Ken

474

General approach to automation of FLASH subsystems  

E-Print Network [OSTI]

General approach to automation of FLASH subsystems Boguslaw Kosda #12;Agenda Motivation Nature of automation software for high energy experiments. Ultimate role of the automation software: Maximization of lasers availability. Automation of routine activities as startup, shutdown ... Continuous monitoring

475

Portland General Electric- Heat Pump Rebate Program  

Broader source: Energy.gov [DOE]

Portland General Electric's (PGE) Heat Pump Rebate Program offers residential customers a $200 rebate for an energy-efficient heat pump installed to PGE’s standards by a PGE-approved contractor....

476

Generalized correlation for foam flow in tubes  

E-Print Network [OSTI]

. Data collected allow for the determination of material parameters. The corresponding friction factors and generalized Reynolds numbers are calculated and their relationship examined. Results indicate that the flow of foam follows the same f = 16/NRe,gen...

Cotter, Carol Lynnette

1996-01-01T23:59:59.000Z

477

General overview of the Nigerian construction industry  

E-Print Network [OSTI]

The purpose of this study is to investigate and provide a general overview of the Nigerian construction industry, its role in the national economy, the main participants in the industry, the problems that they face, and ...

Dantata, Sanusi (Sanusi A.)

2008-01-01T23:59:59.000Z

478

Inventories and capacity utilization in general equilibrium  

E-Print Network [OSTI]

The primary goal of this dissertation is to gain a better understanding, in thecontext of a dynamic stochastic general equilibrium framework, of the role of inventories and capacity utilization (of both capital and labor) and, in particular...

Trupkin, Danilo Rogelio

2009-05-15T23:59:59.000Z

479

Total Energy Management in General Motors  

E-Print Network [OSTI]

This paper presents an overview of General Motors' energy management program with special emphasis on energy conservation. Included is a description of the total program organization, plant guidelines, communication and motivation techniques...

DeKoker, N.

1979-01-01T23:59:59.000Z

480

[Institutional logo] GENERAL INTERNATIONAL MEMORANDUM OF UNDERSTANDING  

E-Print Network [OSTI]

, technology transfer, publication, curriculum development, joint projects and training. It is contemplated1 [Institutional logo] GENERAL INTERNATIONAL MEMORANDUM OF UNDERSTANDING BETWEEN BOARD OF REGENTS through the Education Abroad Office. The transfer of information, faculty, or staff for education

Powers, Robert

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


481

Coordination of General Accounting Office Activities  

Broader source: Directives, Delegations, and Requirements [Office of Management (MA)]

The order provides policies, procedures, and responsibilities for the coordination of General Accounting Office activities and actions required when GAO reports contain recommendations pertaining to the DOE. Cancels DOE O 2340.1B.

1992-06-08T23:59:59.000Z

482

Organization of the Catalog General Campus Colleges  

E-Print Network [OSTI]

(see School of Public Health) Materials Science and Engineering Mechanical, Aerospace, and Nuclear Theater Arts General Campus Professional Schools School of Engineering and Applied Science Chemical Engineering Civil Engineering Computer Science Electrical Engineering Environmental Science and Engineering

Grether, Gregory

483

Thresholding Multivariate Regression and Generalized Principal Components  

E-Print Network [OSTI]

the high-dimensional data matrices have been extensively researched for uncorrelated and independent situations, they are much less so for the transposable data matrices. A generalization of principal component analysis and the related weighted least...

Sun, Ranye

2014-03-17T23:59:59.000Z

484

On Stable Piecewise Linearization and Generalized Algorithmic ...  

E-Print Network [OSTI]

Dec 30, 2012 ... we examine generalizations of the midpoint and the trapezoidal rule for the case of. Lipschitz continuous ...... Here we emphasize its quality in approximating the underlying ..... the assurance of overall continuity. Without, one ...

2012-12-30T23:59:59.000Z

485

Generalized one-dimensional, steady, compressible flow  

SciTech Connect (OSTI)

The present development and testing of a generalized method for analytically examining 1D steady flow of perfect gases allows area change, heat transfer, friction, and mass injection. Generalized flow functions are developed, and sample tables are calculated and tested for both simple cases and combined changes. Normal shocks are noted to occur from the supersonic portion of these loci to the subsonic portion, in a manner analogous to simple-change behavior. 9 refs.

Young, F.M. (Lamar Univ., Beaumont, TX (United States))

1993-01-01T23:59:59.000Z

486

General Relativity as Geometro-Hydrodynamics  

E-Print Network [OSTI]

In the spirit of Sakharov's `metric elasticity' proposal, we draw a loose analogy between general relativity and the hydrodynamic state of a quantum gas. In the `top-down' approach, we examine the various conditions which underlie the transition from some candidate theory of quantum gravity to general relativity. Our emphasis here is more on the `bottom-up' approach, where one starts with the semiclassical theory of gravity and examines how it is modified by graviton and quantum field excitations near and above the Planck scale. We mention three aspects based on our recent findings: 1) Emergence of stochastic behavior of spacetime and matter fields depicted by an Einstein-Langevin equation. The backreaction of quantum fields on the classical background spacetime manifests as a fluctuation-dissipation relation. 2) Manifestation of stochastic behavior in effective theories below the threshold arising from excitations above. The implication for general relativity is that such Planckian effects, though exponentially suppressed, is in principle detectable at sub-Planckian energies. 3) Decoherence of correlation histories and quantum to classical transition. From Gell-Mann and Hartle's observation that the hydrodynamic variables which obey conservation laws are most readily decohered, one can, in the spirit of Wheeler, view the conserved Bianchi identity obeyed by the Einstein tensor as an indication that general relativity is a hydrodynamic theory of geometry. Many outstanding issues surrounding the transition to general relativity are of a nature similar to hydrodynamics and mesoscopic physics.

B. L. Hu

1996-07-29T23:59:59.000Z

487

The Origin of Structures in Generalized Gravity  

E-Print Network [OSTI]

In a class of generalized gravity theories with general couplings between the scalar field and the scalar curvature in the Lagrangian, we can describe the quantum generation and the classical evolution of both the scalar and tensor structures in a simple and unified manner. An accelerated expansion phase based on the generalized gravity in the early universe drives microscopic quantum fluctuations inside a causal domain to expand into macroscopic ripples in the spacetime metric on scales larger than the local horizon. Following their generation from quantum fluctuations, the ripples in the metric spend a long period outside the causal domain. During this phase their evolution is characterized by their conserved amplitudes. The evolution of these fluctuations may lead to the observed large scale structures of the universe and anisotropies in the cosmic microwave background radiation.

J. Hwang

1997-11-21T23:59:59.000Z

488

Generalized Batchelor functions of isotropic turbulence  

E-Print Network [OSTI]

We generalize Batchelor's parameterization of the autocorrelation functions of isotropic turbulence in a form involving a product expansion with multiple small scales. The richer small scale structure acquired this way, compared to the usual Batchelor function, is necessary so that the associated energy spectrum approximate well actual spectra in the universal equilibrium range. We propose that the generalized function provides an approximation of arbitrary accuracy for actual spectra of isotropic turbulence over the universal equilibrium range. The degree of accuracy depends on the number of higher moments which are determinable and it is reflected in the number of small scales involved. The energy spectrum of the generalized function is derived, and for the case of two small scales is compared with data from high-resolution direct numerical simulations. We show that the compensated spectra (which illustrate the bottleneck effect) and dissipation spectra are encapsulated excellently, in accordance with our p...

Gravanis, Elias

2015-01-01T23:59:59.000Z

489

General Relativity and Quantum Mechanics: Towards a Generalization of the Lambert W Function  

E-Print Network [OSTI]

Herein, we present a canonical form for a natural and necessary generalization of the Lambert W function, natural in that it requires minimal mathematical definitions for this generalization, and necessary in that it provides a means of expressing solutions to a number of physical problems of fundamental nature. In particular, this generalization expresses the exact solutions for general-relativistic self-gravitating 2-body and 3-body systems in one spatial and one time dimension. It also expresses the solution to a previously unknown mathematical link between the lineal gravity problem and the Schroedinger equation.

Tony C. Scott; Robert B. Mann

2006-09-06T23:59:59.000Z

490

Ergodicity of the generalized lemon billiards  

SciTech Connect (OSTI)

In this paper, we study a two-parameter family of convex billiard tables, by taking the intersection of two round disks (with different radii) in the plane. These tables give a generalization of the one-parameter family of lemon-shaped billiards. Initially, there is only one ergodic table among all lemon tables. In our generalized family, we observe numerically the prevalence of ergodicity among the some perturbations of that table. Moreover, numerical estimates of the mixing rate of the billiard dynamics on some ergodic tables are also provided.

Chen, Jingyu [Department of Computer Science, University of Illinois at Urbana-Champaign, Champaign, Illinois 61801-2302 (United States)] [Department of Computer Science, University of Illinois at Urbana-Champaign, Champaign, Illinois 61801-2302 (United States); Mohr, Luke; Zhang, Hong-Kun, E-mail: hongkun@math.umass.edu; Zhang, Pengfei [Department of Mathematics and Statistics, UMass Amherst, Amherst, Massachusetts 01003 (United States)] [Department of Mathematics and Statistics, UMass Amherst, Amherst, Massachusetts 01003 (United States)

2013-12-15T23:59:59.000Z

491

Gravitational tests of the Generalized Uncertainty Principle  

E-Print Network [OSTI]

We compute the corrections to the Schwarzschild metric necessary to reproduce the Hawking temperature derived from a Generalized Uncertainty Principle (GUP), so that the GUP deformation parameter is directly linked to the deformation of the metric. Using this modified Schwarzschild metric, we compute corrections to the standard General Relativistic predictions for the light deflection and perihelion precession, both for planets in the solar system and for binary pulsars. This analysis allows us to set bounds for the GUP deformation parameter from well-known astronomical measurements.

Fabio Scardigli; Roberto Casadio

2014-07-01T23:59:59.000Z

492

A General Symbolic Method with Physical Applications  

E-Print Network [OSTI]

A solution to the problem of unifying the General Relativistic and Quantum Theoretical formalisms is given which introduces a new non-axiomatic symbolic method and an algebraic generalization of the Calculus to non-finite symbolisms without reference to the concept of a limit. An essential feature of the non-axiomatic method is the inadequacy of any (finite) statements: Identifying this aspect of the theory with the "existence of an external physical reality" both allows for the consistency of the method with the results of experiments and avoids the so-called "measurement problem" of quantum theory.

Gregory M. Smith

2000-06-28T23:59:59.000Z

493

Potential Impact of Adopting Maximum Technologies as Minimum Efficiency Performance Standards in the U.S. Residential Sector  

E-Print Network [OSTI]

and general lighting incandescent services (GLIS) areLighting Phase out of incandescent lighting has been passedout of general service incandescent lamps (GSIL) which don’t

Letschert, Virginie

2010-01-01T23:59:59.000Z

494

Studying in Canada Guide General Information  

E-Print Network [OSTI]

Studying in Canada Guide General Information Once you have received your official letter) from Citizenship and Immigration Canada (CIC) before you can come to Canada to study. Most foreign nationals who have been accepted by an educational institution to study in Canada require Study Permits

Martin, Jeff

495

Earth and Sustainability 1. General Information  

E-Print Network [OSTI]

Earth and Sustainability 1. General Information Deans: Prof. dr. G.J. van der Zwaan (Faculty of Geosciences) Prof. dr. ir. A. Bliek (Faculty of Science) Constituting faculty focus areas: Solid Earth (Dept. Earth Sciences), Earth Surface Analysis (Depts. Earth Sciences, Physical Geography), Climate and Global

Utrecht, Universiteit

496

SYLLABUS--GEOGRAPHY 310 GENERAL CLIMATOLOGY  

E-Print Network [OSTI]

SYLLABUS--GEOGRAPHY 310 GENERAL CLIMATOLOGY Fall 2009 Time: T-R 11:00-12:15 p.m. (BOL B95 and SAB only Class Reflector: geog-310@uwm.edu Textbooks: Rohli & Vega, Climatology (1 edition, 2008)st Map Climatology 2 TENTATIVE LECTURE SCHEDULE AND READINGS Rohli & Vega Chapters Sept. 3-R--Introduction and course

Saldin, Dilano

497

May 2009 Page 1 Google General Searching  

E-Print Network [OSTI]

more to open Alerts. Type or copy search terms (use keywords or any of these tips) and set options domain such as .gov, .edu, or from a specific website, e.g., on the Adv Search form, enter cdc.gov or useTips May 2009 Page 1 Google ­ General Searching Tip #1: Phrase: Use quotation marks to keep words

California at San Diego, University of

498

Generalized finite element method for multiscale analysis  

E-Print Network [OSTI]

by the Partition of Unity Method (PUM). It is shown that the p-version of the Generalized FEM using mesh-based handbook functions is capable of achieving very high accuracy. It is also analyzed that the effect of the main factors affecting the accuracy...

Zhang, Lin

2004-11-15T23:59:59.000Z

499

A Generalization in Space of Jung's Theorem  

E-Print Network [OSTI]

Let's have $n$ points in the space such that the maximum distance between any of them is $a$. We prove that there exists a sphere of radius $r \\leq a \\frac{\\sqrt(6)}{4}$ that contains in its interior or on its surface all these points. [This is a generalization of Jung's theorem that he designed for a plane.

Florentin Smarandache

2007-07-13T23:59:59.000Z

500

COMMUNITY ADVISOR JOB DESCRIPTION General Statement  

E-Print Network [OSTI]

COMMUNITY ADVISOR JOB DESCRIPTION General Statement Community Advisors are members for their area and the Head Resident. Community Advisors are responsible for meeting the needs of their woodframe is beyond a Community Advisor's level of comfort and competence and refer students to as many resources

Royer, Dana