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Note: This page contains sample records for the topic "lifetime low-e double-pane" 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
to obtain the most current and comprehensive results.


1

Evaluation of Low-E Storm Windows in the PNNL Lab Homes  

SciTech Connect (OSTI)

This study examines the performance of exterior and interior low-e storm panels with a controlled whole home experimental design using PNNL's Lab Homes. Summing the estimated annual average heating and cooling savings, the installation of low-e storm panels resulted in approximately 10% annual energy savings. The results of the experiment will be used to determine and validate performance of low-e storm windows over double pane clear glass windows in a whole home setting.

Knox, Jake R.; Widder, Sarah H.

2014-05-31T23:59:59.000Z

2

Building America's Low-e Storm Window Adoption Program Plan (FY2014)  

SciTech Connect (OSTI)

Low emissivity (low-e) storm windows/panels appear to hold promise for effectively reducing existing home heating, ventilation, and air-conditioning (HVAC) consumption. Due to the affordability of low-e storm windows and the large numbers of existing homes that have low-performing single-pane or double-pane clear windows, a tremendous opportunity exists to provide energy savings by transforming the low-e storm window market and increasing market adoption. This report outlines U.S. Department of Energy (DOE) Building America’s planned market transformation activities in support of low-e storm window adoption during fiscal year (FY) 2014.

Cort, Katherine A.

2013-12-23T23:59:59.000Z

3

The Neutron Lifetime  

E-Print Network [OSTI]

The decay of the free neutron into a proton, electron, and antineutrino is the prototype semileptonic weak decay and the simplest example of nuclear beta decay. The nucleon vector and axial vector weak coupling constants G_V and G_A determine the neutron lifetime as well as the strengths of weak interaction processes involving free neutrons and protons that are important in astrophysics, cosmology, solar physics and neutrino detection. In combination with a neutron decay angular correlation measurement, the neutron lifetime can be used to determine the first element of the CKM matrix Vud. Unfortunately the two main experimental methods for measuring the neutron lifetime currently disagree by almost 4 sigma. I will present a brief review of the status of the neutron lifetime and prospects for the future.

F. E. Wietfeldt

2014-11-13T23:59:59.000Z

4

Neutron LifetimeNeutron Lifetime IUCF Colloquium April 13,  

E-Print Network [OSTI]

Neutron LifetimeNeutron Lifetime IUCF Colloquium April 13, 2007 Albert Steyerl Department 940 878.5±0.8 885.7±0.8 new result neutronlifetime(),s year world average Neutron lifetime data #12 world average Neutron lifetime data A. Serebrov et al. 2005Storage of ultra-cold neutrons878.5 ±±±± 0

Steyerl, Albert

5

Test for Modeling Windows in DOE 2.1E for Comparing the Window Library with the Shading Coefficient Method for a Single-Family Residence in Texas  

E-Print Network [OSTI]

. The window simulation tests are performed using single-pane, double-pane, and low-e glass on two standard DOE 2.1E single-family house models: 1) the model which has the R-value for wall, roof and floor according to 2000 IECC (Quick Wall), and 2) the model...

Kim, S.; Haberl, J. S.

2008-07-18T23:59:59.000Z

6

Runtime verification of object lifetime specifications  

E-Print Network [OSTI]

This thesis reports on the implementation of a runtime verification system for object lifetime specifications. This system is used to explore and evaluate the expressiveness object lifetime specifications. Object lifetime ...

Benjamin, Zev (Zev A.)

2009-01-01T23:59:59.000Z

7

The Lifetime of Grand Design  

E-Print Network [OSTI]

The lifetime of the structure in grand design spiral galaxies is observationally ill-determined, but is essentially set by how accurately the pattern's rotation can be characterized by a single angular pattern speed. This paper derives a generalized version of the Tremaine-Weinberg method for observationally determining pattern speeds, in which the pattern speed is allowed to vary arbitrarily with radius. The departures of the derived pattern speed from a constant then provides a simple metric of the lifetime of the spiral structure. Application of this method to CO observations of NGC 1068 reveal that the pattern speed of the spiral structure in this galaxy varies rapidly with radius, and that the lifetime of the spiral structure is correspondingly very short. If this result turns out to be common in grand-design spiral galaxies, then these features will have to be viewed as highly transient phenomena.

M. R. Merrifield; R. J. Rand; S. E. Meidt

2005-11-02T23:59:59.000Z

8

CONSTRAINTS ON ACCRETION DISK LIFETIMES  

E-Print Network [OSTI]

of stellar mass. #12; METHODOLOGY Constraining disk lifetimes means measuring infrared excesses and stellar ages and masses for large samples of young stellar objects. #12; Infrared excesses: #15; A combination of stellar irradiative and viscous heating in circumstellar disks produces ux excesses at micro

Hillenbrand, Lynne

9

Low-e Storm Windows: Market Assessment and Pathways to Market Transformation  

SciTech Connect (OSTI)

Field studies sponsored by the U.S. Department of Energy (DOE) have shown that the use of low-e storm windows can lead to significant heating and cooling energy savings in residential homes. This study examines the market for low-e storm windows based on market data, case studies, and recent experience with weatherization deployment programs. It uses information from interviews conducted with DOE researchers and industry partners involved in case studies and early deployment efforts related to low-e storm windows. In addition, this study examines potential barriers to market acceptance, assesses the market and energy savings potential, and identifies opportunities to transform the market for low-e storm windows and overcome market adoption barriers.

Cort, Katherine A.

2013-06-08T23:59:59.000Z

10

Building America Webinar: Low-E Storms: The Next Big Thing in Window Retrofits  

Broader source: Energy.gov [DOE]

This Building America webinar presented a new and improved low-e storm window that boasts a combination of curb appeal and energy efficiency, all for a fraction of the cost of window replacement, on Sept. 9, 2014.

11

Atmospheric Lifetime of Fossil Fuel Carbon Dioxide  

E-Print Network [OSTI]

Atmospheric Lifetime of Fossil Fuel Carbon Dioxide David Archer,1 Michael Eby,2 Victor Brovkin,3 released from combustion of fossil fuels equilibrates among the various carbon reservoirs of the atmosphere literature on the atmospheric lifetime of fossil fuel CO2 and its impact on climate, and we present initial

Scherer, Norbert F.

12

Text-Alternative Version of Building America Webinar: Low-e Storms: The Next "Big Thing" in Window Retrofits  

Broader source: Energy.gov [DOE]

Low-e Storms:  The Next “Big Thing” in Window RetrofitsOfficial Webinar Transcript (September 9, 2014)

13

Models for Battery Reliability and Lifetime  

SciTech Connect (OSTI)

Models describing battery degradation physics are needed to more accurately understand how battery usage and next-generation battery designs can be optimized for performance and lifetime. Such lifetime models may also reduce the cost of battery aging experiments and shorten the time required to validate battery lifetime. Models for chemical degradation and mechanical stress are reviewed. Experimental analysis of aging data from a commercial iron-phosphate lithium-ion (Li-ion) cell elucidates the relative importance of several mechanical stress-induced degradation mechanisms.

Smith, K.; Wood, E.; Santhanagopalan, S.; Kim, G. H.; Neubauer, J.; Pesaran, A.

2014-03-01T23:59:59.000Z

14

Database of Low-e Storm Window Energy Performance across U.S. Climate Zones  

SciTech Connect (OSTI)

This is an update of a report that describes process, assumptions, and modeling results produced Create a Database of U.S. Climate-Based Analysis for Low-E Storm Windows. The scope of the overall effort is to develop a database of energy savings and cost effectiveness of low-E storm windows in residential homes across a broad range of U.S. climates using the National Energy Audit Tool (NEAT) and RESFEN model calculations. This report includes a summary of the results, NEAT and RESFEN background, methodology, and input assumptions, and an appendix with detailed results and assumptions by cliamte zone.

Culp, Thomas D.; Cort, Katherine A.

2014-09-04T23:59:59.000Z

15

Efficiency and lifetime of carbon foils  

SciTech Connect (OSTI)

Charge-exchange injection by means of carbon foils is a widely used method in accelerators. This paper discusses two critical issues concerning the use of carbon foils: efficiency and lifetime. An energy scaling of stripping efficiency was suggested and compared with measurements. Several factors that determine the foil lifetime--energy deposition, heating, stress and buckling--were studied by using the simulation codes MARS and ANSYS.

Chou, W.; /Fermilab; Kostin, M.; /Michigan State U., NSCL; Tang, Z.; /Fermilab

2006-11-01T23:59:59.000Z

16

Diffusion Simulation and Lifetime Calculation at RHIC  

SciTech Connect (OSTI)

The beam lifetime is an important parameter for any storage ring. For protons in RHIC it is dominated by the non-linear nature of the head-on collisions that causes the particles to diffuse outside the stable area in phase space. In this report we show results from diffusion simulation and lifetime calculation for the 2006 and 2008 polarized proton runs in RHIC.

Abreu,N.P.; Fischer, W.; Luo, Y.; Robert-Demolaize, G.

2009-01-02T23:59:59.000Z

17

Supercontinuum Stimulated Emission Depletion Fluorescence Lifetime Imaging  

SciTech Connect (OSTI)

Supercontinuum (SC) stimulated emission depletion (STED) fluorescence lifetime imaging is demonstrated by using time-correlated single-photon counting (TCSPC) detection. The spatial resolution of the developed STED instrument was measured by imaging monodispersed 40-nm fluorescent beads and then determining their fwhm, and was 36 ± 9 and 40 ± 10 nm in the X and Y coordinates, respectively. The same beads measured by confocal microscopy were 450 ± 50 and 430 ± 30 nm, which is larger than the diffraction limit of light due to underfilling the microscope objective. Underfilling the objective and time gating the signal were necessary to achieve the stated STED spatial resolution. The same fluorescence lifetime (2.0 ± 0.1 ns) was measured for the fluorescent beads by using confocal or STED lifetime imaging. The instrument has been applied to study Alexa Fluor 594-phalloidin labeled F-actin-rich projections with dimensions smaller than the diffraction limit of light in cultured cells. Fluorescence lifetimes of the actin-rich projections range from 2.2 to 2.9 ns as measured by STED lifetime imaging.

Lesoine, Michael; Bose, Sayantan; Petrich, Jacob; Smith, Emily

2012-06-13T23:59:59.000Z

18

B lifetimes and mixing at the Tevatron  

SciTech Connect (OSTI)

The authors present recent results on b-hadron lifetimes and mixing obtained from the analysis of the data collected at the Tevatron Collider by the CDF and D0 Collaborations in the period 2002-2004. Many lifetime measurements have been updated since the Summer 2004 conferences, sometimes improving significantly the accuracy. Likewise the measurement of the B{sub d} oscillation frequency has been updated. New limits on the B{sub s} oscillation frequency have been determined using for the first time Run II data.

Bedeschi, Franco; /INFN, Pisa

2005-05-01T23:59:59.000Z

19

Prompt Neutron Lifetime for the NBSR Reactor  

SciTech Connect (OSTI)

In preparation for the proposed conversion of the National Institute of Standards and Technology (NIST) research reactor (NBSR) from high-enriched uranium (HEU) to low-enriched uranium (LEU) fuel, certain point kinetics parameters must be calculated. We report here values of the prompt neutron lifetime that have been calculated using three independent methods. All three sets of calculations demonstrate that the prompt neutron lifetime is shorter for the LEU fuel when compared to the HEU fuel and longer for the equilibrium end-of-cycle (EOC) condition when compared to the equilibrium startup (SU) condition for both the HEU and LEU fuels.

Hanson, A.L.; Diamond, D.

2012-06-24T23:59:59.000Z

20

Lifetime tests for MAC vertex chamber  

SciTech Connect (OSTI)

A vertex chamber for MAC was proposed to increase precision in the measurement of the B hadron and tau lepton lifetimes. Thin-walled aluminized mylar drift tubes were used for detector elements. A study of radiation hardness was conducted under the conditions of the proposed design using different gases and different operating conditions. (LEW)

Nelson, H.N.

1986-07-01T23:59:59.000Z

Note: This page contains sample records for the topic "lifetime low-e double-pane" 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

Do red giants have short mode lifetimes?  

E-Print Network [OSTI]

We show evidence that the red giant star ksi Hya has an oscillation mode lifetime, tau, of about 2 days significantly shorter than predicted by theory (tau = 17 days, Houdek & Gough 2002). If this is a general trend of red giants it would limit the prospects of asteroseismology on these stars because of poor coherence of the oscillations.

D. Stello; H. Kjeldsen; T. R. Bedding; D. Buzasi

2005-10-18T23:59:59.000Z

22

Low E Brings High Savings in Newark, Delaware | Department of Energy  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:Year in3.pdfEnergy Health andofIanJenniferLeslieEnergy LoanOfficial Dr.TechnicalLowLow E

23

LUMINESCENCE LIFETIME INSTRUMENTATION DEVELOPMENT FOR MULTI-DYE ANALYSIS  

E-Print Network [OSTI]

Start Time of Window 4 ?1 Shorter Lifetime in Two Dye System ?2 Longer Lifetime in Two Dye System LED Light Emitting Diode PMT Photomultiplier Tube DAQ Data Acquisition Board SD Standard Deviation 95% CI 95% Confidence Interval SNR Signal...

Shadfan, Adam

2011-08-08T23:59:59.000Z

24

Photovoltaic Lifetime & Degradation Science Statistical Pathway Development: Acrylic Degradation  

E-Print Network [OSTI]

Photovoltaic Lifetime & Degradation Science Statistical Pathway Development: Acrylic Degradation, USA ABSTRACT In order to optimize and extend the life of photovoltaics (PV) modules, scientific photovoltaics. The statisti- cally significant relationships were investigated using lifetime and degradation

Rollins, Andrew M.

25

Degradation Pathway Models for Photovoltaics Module Lifetime Performance  

E-Print Network [OSTI]

Degradation Pathway Models for Photovoltaics Module Lifetime Performance Nicholas R. Wheeler, Laura data from Underwriter Labs, featuring measurements taken on 18 identical photovoltaic (PV) modules in modules and their effects on module performance over lifetime. Index Terms--photovoltaics, statistical

Rollins, Andrew M.

26

Mass and Lifetime Measurements in Storage Rings  

SciTech Connect (OSTI)

Masses of nuclides covering a large area of the chart of nuclides can be measured in storage rings where many ions circulate at the same time. In this paper the recent progress in the analysis of Schottky mass spectrometry data is presented as well as the technical improvements leading to higher accuracy for isochronous mass measurements with a time-of-flight detector. The high sensitivity of the Schottky method down to single ions allows to measure lifetimes of nuclides by observing mother and daughter nucleus simultaneously. In this way we investigated the decay of bare and H-like 140Pr. As we could show the lifetime can be even shortened compared to those of atomic nuclei despite of a lower number of electrons available for internal conversion or electron capture.All these techniques will be implemented with further improvements at the storage rings of the new FAIR facility at GSI in the future.

Weick, H.; Beckert, K.; Beller, P.; Bosch, F.; Dimopoulou, C.; Kozhuharov, C.; Kurcewicz, J.; Mazzocco, M.; Nociforo, C.; Nolden, F.; Steck, M.; Sun, B.; Winkler, M. [Gesellschaft fuer Schwerionenforschung mbH, 64291 Darmstadt (Germany); Brandau, C.; Chen, L.; Geissel, H.; Knoebel, R.; Litvinov, S. A.; Litvinov, Yu. A.; Scheidenberger, C. [Gesellschaft fuer Schwerionenforschung mbH, 64291 Darmstadt (Germany); II. Phys. Institut, Justus-Liebig-Universitaet Giessen, 35392 Giessen (Germany)] (and others)

2007-05-22T23:59:59.000Z

27

Final report on reliability and lifetime prediction.  

SciTech Connect (OSTI)

This document highlights the important results obtained from the subtask of the Goodyear CRADA devoted to better understanding reliability of tires and to developing better lifetime prediction methods. The overall objective was to establish the chemical and physical basis for the degradation of tires using standard as well as unique models and experimental techniques. Of particular interest was the potential application of our unique modulus profiling apparatus for assessing tire properties and for following tire degradation. During the course of this complex investigation, extensive relevant information was generated, including experimental results, data analyses and development of models and instruments. Detailed descriptions of the findings are included in this report.

Gillen, Kenneth Todd; Wise, Jonathan; Jones, Gary D.; Causa, Al G. [Goodyear Tire and Rubber Co., Akron, OH; Terrill, Edward R. [Goodyear Tire and Rubber Co., Akron, OH; Borowczak, Marc [Goodyear Tire and Rubber Co., Akron, OH

2012-12-01T23:59:59.000Z

28

The lifetime of excess atmospheric carbon dioxide  

SciTech Connect (OSTI)

Since the beginning of the industrial revolution human activity has significantly altered biogeochemical cycling on a global scale. The uncertainties of future climate change rests partly on issues of physical-climate system dynamics and their representation in general circulation models. However understanding the carbon cycle is a key to comprehending the changing terrestrial biosphere and to developing a reasonable range of future concentrations of greenhouse gases. The authors look at correction of model uncertainties in the examination of the lifetime of carbon dioxide. The two difficulties analysed are as follows: (1) most model-derived estimates of the relaxation of the concentration of CO2 reveal a function which is not always well approximated by weighted sums of exponentials; (2) the function c(t) is quite sensitive to assumptions about the terrestrial biosphere and the relaxation experiment. 51 refs., 15 figs., 7 tabs.

Moore, B. III; Braswell, B.H. (Univ. of New Hampshire, Durham, NH (United States))

1994-03-01T23:59:59.000Z

29

Statistical and Domain Analytics Applied to PV Module Lifetime...  

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

This process exemplifies the development of a methodology to determine lifetime and degradation pathways present in modules and their eects on module perfor- and is...

30

Statistical and Domain Analytics Applied to PV Module Lifetime...  

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

Degradation Science Statistical and Domain Analytics Applied to PV Module Lifetime and Degradation Science Presented at the PV Module Reliability Workshop, February 26 - 27...

31

Societal lifetime cost of hydrogen fuel cell vehicles  

E-Print Network [OSTI]

Societal lifetime cost of hydrogen fuel cell vehiclesthe societal cost of hydrogen fuel-cell vehicles with modelsand running costs) than hydrogen fuel-cell vehicles in 2030.

Sun, Yongling; Ogden, J; Delucchi, Mark

2010-01-01T23:59:59.000Z

32

Experimental Investigation of Excited-State Lifetimes in Atomic Ytterbium  

SciTech Connect (OSTI)

Lifetimes of 21 excited states in atomic Yb were measured using time-resolved fluorescence detection following pulsed laser excitation. The lifetime of the 4f{sup 14}5d6s {sup 3}D{sub 1} state, which is of particular importance for a proposed study of parity nonconservation in atoms, was measured to be 380(30) ns.

Bowers, C.J.; Budker, D.; Commins, E.D.; DeMille, D.; Freedman, S.J.; Nguyen, A.-T.; Shang, S.-Q.; /UC, Berkeley; Zolotorev, M.; /SLAC

2011-11-15T23:59:59.000Z

33

BAYESIAN RELIABILITY MODELING FOR MASKED SYSTEM LIFETIME DATA  

E-Print Network [OSTI]

BAYESIAN RELIABILITY MODELING FOR MASKED SYSTEM LIFETIME DATA Lynn KUO \\Lambda Department to fail. The objective is to make inferences for the reliability of the components. In this paper we Title: Reliability Inference for Masked System Lifetime Data. 1. Introduction In the masked system

Kuo, Lynn

34

Neutron lifetime measurements using gravitationally trapped ultracold neutrons  

SciTech Connect (OSTI)

Our experiment using gravitationally trapped ultracold neutrons (UCN) to measure the neutron lifetime is reviewed. Ultracold neutrons were trapped in a material bottle covered with perfluoropolyether. The neutron lifetime was deduced from comparison of UCN losses in the traps with different surface-to-volume ratios. The precise value of the neutron lifetime is of fundamental importance to particle physics and cosmology. In this experiment, the UCN storage time is brought closer to the neutron lifetime than in any experiments before: the probability of UCN losses from the trap was only 1% of that for neutron {beta} decay. The neutron lifetime obtained, 878.5{+-}0.7{sub stat}{+-}0.3{sub sys} s, is the most accurate experimental measurement to date.

Serebrov, A. P.; Varlamov, V. E.; Kharitonov, A. G.; Fomin, A. K.; Krasnoschekova, I. A.; Lasakov, M. S.; Taldaev, R. R.; Vassiljev, A. V.; Zherebtsov, O. M. [Petersburg Nuclear Physics Institute, Russian Academy of Sciences, RU-188300 Gatchina, Leningrad District (Russian Federation); Pokotilovski, Yu. N. [Joint Institute for Nuclear Research, RU-141980 Dubna, Moscow Region (Russian Federation); Geltenbort, P. [Institut Max von Laue Paul Langevin, Boite Postal 156, F-38042 Grenoble Cedex 9 (France)

2008-09-15T23:59:59.000Z

35

Neutron lifetime measurements using gravitationally trapped ultracold neutrons  

E-Print Network [OSTI]

Our experiment using gravitationally trapped ultracold neutrons (UCN) to measure the neutron lifetime is reviewed. Ultracold neutrons were trapped in a material bottle covered with perfluoropolyether. The neutron lifetime was deduced from comparison of UCN losses in the traps with different surface-to-volume ratios. The precise value of the neutron lifetime is of fundamental importance to particle physics and cosmology. In this experiment, the UCN storage time is brought closer to the neutron lifetime than in any experiments before:the probability of UCN losses from the trap was only 1% of that for neutron beta decay. The neutron lifetime obtained,878.5+/-0.7stat+/-0.3sys s, is the most accurate experimental measurement to date.

A. P. Serebrov; V. E. Varlamov; A. G. Kharitonov; A. K. Fomin; Yu. N. Pokotilovski; P. Geltenbort; I. A. Krasnoschekova; M. S. Lasakov; R. R. Taldaev; A. V. Vassiljev; O. M. Zherebtsov

2007-02-06T23:59:59.000Z

36

The Lifetime of a beautiful and charming meson: B_c lifetime measured using the D0 detector  

SciTech Connect (OSTI)

Using approximately 1.3 fb{sup -1} of data collected by the D0 detector between 2002 and 2006, the lifetime of the B{sub c}{sup {+-}} meson is studied in the B{sub c}{sup {+-}} {yields} J/{psi}{mu}{sup {+-}} + X final state. Using an unbinned likelihood simultaneous fit to J/{psi} + {mu} invariant mass and lifetime distributions, a signal of 810 {+-} 80(stat.) candidates is estimated and a lifetime measurement made of: {tau}(B{sub c}{sup {+-}}) = 0.448{sub -0.036}{sup +0.038}(stat) {+-} 0.032(sys) ps.

Welty-Rieger, Leah Christine; /Indiana U.

2008-09-01T23:59:59.000Z

37

Measurement of the lifetimes of B meson mass eigenstates  

E-Print Network [OSTI]

In this dissertation, we present the results of the average lifetime measurements in ..., ..., and ... decays, as well as the results of a time-dependent angular analysis of ... and ... decays. The time-dependent angular ...

Anikeev, Konstantin

2004-01-01T23:59:59.000Z

38

Direct Measurements of the Lifetime of Heavy Hypernuclei  

E-Print Network [OSTI]

The lifetime of a Lambda particle embedded in a nucleus (hypernucleus) decreases from that of free Lambda decay due to the opening of the Lambda N to NN weak decay channel. However, it is generally believed that the lifetime of a hypernucleus attains a constant value (saturation) for medium to heavy hypernuclear masses, yet this hypothesis has been difficult to verify. The present paper reports a direct measurement of the lifetime of medium-heavy hypernuclei produced with a photon-beam from Fe, Cu, Ag, and Bi targets. The recoiling hypernuclei were detected by a fission fragment detector using low-pressure multi-wire proportional chambers. The experiment agrees remarkably well with the only previously-measured single-species heavy-hypernucleus lifetime, that of Fe56_Lambda at KEK, and has significantly higher precision. The experiment disagrees with the measured lifetime of an unknown combination of heavy hypernuclei with 180lifetime decrease.

X. Qiu; L. Tang; A. Margaryan; P. Achenbach; A. Ahmidouch; I. Albayrak; D. Androic; A. Asaturyan; R. Asaturyan; O. Ates; R. Badui; P. Baturin; W. Boeglin; J. Bono; E. Brash; P. Carter; C. Chen; X. Chen; A. Chiba; E. Christy; M. M. Dalton; S. Danagoulian; R. De Leo; D. Doi; M. Elaasar; R. Ent; H. Fenker; Y. Fujii; M. Furic; M. Gabrielyan; L. Gan; F. Garibaldi; D. Gaskell; A. Gasparian; T. Gogami; O. Hashimoto; T. Horn; B. Hu; E. V. Hungerford; M. Jones; H. Kanda; M. Kaneta; M. Kawai; D. Kawama; H. Khanal; M. Kohl; A. Liyanage; W. Luo; K. Maeda; P. Markowitz; T. Maruta; A. Matsumura; V. Maxwell; A. Mkrtchyan; H. Mkrtchyan; S. Nagao; S. N. Nakamura; A. Narayan; C. Neville; G. Niculescu; M. I. Niculescu; A. Nunez; Nuruzzaman; Y. Okayasu; T. Petkovic; J. Pochodzalla; J. Reinhold; V. M. Rodriguez; C. Samanta; B. Sawatzky; T. Seva; A. Shichijo; V. Tadevosyan; N. Taniya; K. Tsukada; M. Veilleux; W. Vulcan; F. R. Wesselmann; S. A. Wood; L. Ya; T. Yamamoto; Z. Ye; K. Yokota; L. Yuan; S. Zhamkochyan; L. Zhu

2013-01-16T23:59:59.000Z

39

DYNAMIC ILM AN APPROACH TO INFRARED-CAMERA BASED DYNAMICAL LIFETIME IMAGING  

E-Print Network [OSTI]

measurements in measurement times as fast as 1 sec per wafer. Keywords: carrier lifetime, imaging, thermography

40

Models for Battery Reliability and Lifetime: Applications in Design and Health Management (Presentation)  

SciTech Connect (OSTI)

This presentation discusses models for battery reliability and lifetime and the Battery Ownership Model.

Smith, K.; Neubauer, J.; Wood, E.; Jun, M.; Pesaran, A.

2013-06-01T23:59:59.000Z

Note: This page contains sample records for the topic "lifetime low-e double-pane" 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

Measurement of the KL meson lifetime with the KLOE detector  

E-Print Network [OSTI]

We present a measurement of the KL lifetime using the KLOE detector. From a sample of 4 x 10^8 KS KL pairs following the reaction e+ e- -> phi -> KS KL we select 15 x 10^6 KL -> p0 p0 p0 decays tagged by KS -> pi+ pi- events. From a fit of the proper time distribution we find tau_L = (50.92 +- 0.17{stat} +- 0.25{syst})$ ns. This is the most precise measurement of the KL lifetime performed to date.

The KLOE collaboration

2005-10-17T23:59:59.000Z

42

Infrared-Active Heterostructured Nanocrystals with Ultralong Carrier Lifetimes  

SciTech Connect (OSTI)

We present the synthesis of composite PbSe/CdSe/CdS nanocrystals with two distinct geometries: core/shell/shell structures and tetrapods. These novel nanostructures exhibit extremely long carrier decay times up to 20 ?s that are combined with high emission efficiencies in the infrared. The increase in carrier lifetimes is attributed to the reduction of the electron?hole overlap as a result of delocalization of the electron wave function into the outer CdS shell or arms. The ultralong carrier lifetimes and controlled geometry render these nanocrystals attractive for a variety of applications from lasing to photocatalysis and photovoltaics.

Lee, Doh C.; Robel, Istvan; Pietryga, Jeffrey M.; Klimov, Victor I.

2010-01-01T23:59:59.000Z

43

Polymer Electrolyte Fuel Cell Lifetime Limitations: The Role of  

E-Print Network [OSTI]

conditions, load profiles, and type of electrocatalyst on the performance degradation, and ­ Determine-Horn ­ Massachusetts Institute of Technology Paulo Ferreira ­ University of Texas at Austin Dane Morgan ­ University systems to achieve the DOE lifetime targets. Technical Targets ­ Durability with cycling 5,000 hours (

44

Lifetime Prediction for Supercapacitor-powered Wireless Sensor Nodes  

E-Print Network [OSTI]

Lifetime Prediction for Supercapacitor-powered Wireless Sensor Nodes Christian Renner, J step towards reaching this goal: It explores discharging-characteristics of supercapacitors, discusses-ion polymers, supercapacitors can last for 10 years or even more. Superca- pacitors do not need a complex

Turau, Volker

45

Design of the Muon Lifetime Experiment By Steve Kliewer  

E-Print Network [OSTI]

the lifetime of the Muon particle. This planned device will use 4, low voltage, classroom safe scintillator detectors and a data acquisition electronics board developed by Quarknet of FermiLab. Analysis, low voltage, classroom safe, detectors 2. DAQ: use the electronics developed by Quarknet (QNET2) 3

California at Santa Cruz, University of

46

MAJOR, LIFETIME ACHIEVEMENT AWARD FOR POET, PROF. PAUL MARIANI  

E-Print Network [OSTI]

MAJOR, LIFETIME ACHIEVEMENT AWARD FOR POET, PROF. PAUL MARIANI CHESTNUT HILL, MA (February 2009) -- University Prof. of English Paul Mariani, a noted Catholic poet and essayist who is one of America's foremost regarded biographies of twentieth-century American poets": William Carlos Williams: A New World Naked (1981

Huang, Jianyu

47

Precision Measurement of the ?[0 over b] Baryon Lifetime  

E-Print Network [OSTI]

The ratio of the ?[0 over b] baryon lifetime to that of the B?[superscript 0] meson is measured using 1.0??fb[superscript -1] of integrated luminosity in 7 TeV center-of-mass energy pp collisions at the LHC. The ?[0 over ...

Williams, Michael

48

Precision measurement of the Lambda_b baryon lifetime  

E-Print Network [OSTI]

The ratio of the \\Lambda b baryon lifetime to that of the B0 meson is measured using 1.0/fb of integrated luminosity in 7 TeV center-of-mass energy pp collisions at the LHC. The \\Lambda b baryon is observed for the first time in the decay mode \\Lambda b -> J/\\psi pK-, while the B0 meson decay used is the well known B0 -> J/\\psi pi+K- mode, where the pi+ K- mass is consistent with that of the K*0(892) meson. The ratio of lifetimes is measured to be 0.976 +/- 0.012 +/- 0.006, in agreement with theoretical expectations based on the heavy quark expansion. Using previous determinations of the B0 meson lifetime, the \\Lambda b lifetime is found to be 1.482 +/- 0.018 +/- 0.012 ps. In both cases the first uncertainty is statistical and the second systematic.

LHCb collaboration; R. Aaij; B. Adeva; M. Adinolfi; C. Adrover; A. Affolder; Z. Ajaltouni; J. Albrecht; F. Alessio; M. Alexander; S. Ali; G. Alkhazov; P. Alvarez Cartelle; A. A. Alves Jr; S. Amato; S. Amerio; Y. Amhis; L. Anderlini; J. Anderson; R. Andreassen; J. E. Andrews; R. B. Appleby; O. Aquines Gutierrez; F. Archilli; A. Artamonov; M. Artuso; E. Aslanides; G. Auriemma; M. Baalouch; S. Bachmann; J. J. Back; C. Baesso; V. Balagura; W. Baldini; R. J. Barlow; C. Barschel; S. Barsuk; W. Barter; Th. Bauer; A. Bay; J. Beddow; F. Bedeschi; I. Bediaga; S. Belogurov; K. Belous; I. Belyaev; E. Ben-Haim; G. Bencivenni; S. Benson; J. Benton; A. Berezhnoy; R. Bernet; M. -O. Bettler; M. van Beuzekom; A. Bien; S. Bifani; T. Bird; A. Bizzeti; P. M. Bj\\ornstad; T. Blake; F. Blanc; J. Blouw; S. Blusk; V. Bocci; A. Bondar; N. Bondar; W. Bonivento; S. Borghi; A. Borgia; T. J. V. Bowcock; E. Bowen; C. Bozzi; T. Brambach; J. van den Brand; J. Bressieux; D. Brett; M. Britsch; T. Britton; N. H. Brook; H. Brown; I. Burducea; A. Bursche; G. Busetto; J. Buytaert; S. Cadeddu; O. Callot; M. Calvi; M. Calvo Gomez; A. Camboni; P. Campana; D. Campora Perez; A. Carbone; G. Carboni; R. Cardinale; A. Cardini; H. Carranza-Mejia; L. Carson; K. Carvalho Akiba; G. Casse; L. Castillo Garcia; M. Cattaneo; Ch. Cauet; R. Cenci; M. Charles; Ph. Charpentier; P. Chen; N. Chiapolini; M. Chrzaszcz; K. Ciba; X. Cid Vidal; G. Ciezarek; P. E. L. Clarke; M. Clemencic; H. V. Cliff; J. Closier; C. Coca; V. Coco; J. Cogan; E. Cogneras; P. Collins; A. Comerma-Montells; A. Contu; A. Cook; M. Coombes; S. Coquereau; G. Corti; B. Couturier; G. A. Cowan; D. C. Craik; S. Cunliffe; R. Currie; C. D'Ambrosio; P. David; P. N. Y. David; A. Davis; I. De Bonis; K. De Bruyn; S. De Capua; M. De Cian; J. M. De Miranda; L. De Paula; W. De Silva; P. De Simone; D. Decamp; M. Deckenhoff; L. Del Buono; N. Déléage; D. Derkach; O. Deschamps; F. Dettori; A. Di Canto; H. Dijkstra; M. Dogaru; S. Donleavy; F. Dordei; A. Dosil Suárez; D. Dossett; A. Dovbnya; F. Dupertuis; P. Durante; R. Dzhelyadin; A. Dziurda; A. Dzyuba; S. Easo; U. Egede; V. Egorychev; S. Eidelman; D. van Eijk; S. Eisenhardt; U. Eitschberger; R. Ekelhof; L. Eklund; I. El Rifai; Ch. Elsasser; A. Falabella; C. Färber; G. Fardell; C. Farinelli; S. Farry; D. Ferguson; V. Fernandez Albor; F. Ferreira Rodrigues; M. Ferro-Luzzi; S. Filippov; M. Fiore; C. Fitzpatrick; M. Fontana; F. Fontanelli; R. Forty; O. Francisco; M. Frank; C. Frei; M. Frosini; S. Furcas; E. Furfaro; A. Gallas Torreira; D. Galli; M. Gandelman; P. Gandini; Y. Gao; J. Garofoli; P. Garosi; J. Garra Tico; L. Garrido; C. Gaspar; R. Gauld; E. Gersabeck; M. Gersabeck; T. Gershon; Ph. Ghez; V. Gibson; L. Giubega; V. V. Gligorov; C. Göbel; D. Golubkov; A. Golutvin; A. Gomes; P. Gorbounov; H. Gordon; M. Grabalosa Gándara; R. Graciani Diaz; L. A. Granado Cardoso; E. Graugés; G. Graziani; A. Grecu; E. Greening; S. Gregson; P. Griffith; O. Grünberg; B. Gui; E. Gushchin; Yu. Guz; T. Gys; C. Hadjivasiliou; G. Haefeli; C. Haen; S. C. Haines; S. Hall; B. Hamilton; T. Hampson; S. Hansmann-Menzemer; N. Harnew; S. T. Harnew; J. Harrison; T. Hartmann; J. He; T. Head; V. Heijne; K. Hennessy; P. Henrard; J. A. Hernando Morata; E. van Herwijnen; A. Hicheur; E. Hicks; D. Hill; M. Hoballah; C. Hombach; P. Hopchev; W. Hulsbergen; P. Hunt; T. Huse; N. Hussain; D. Hutchcroft; D. Hynds; V. Iakovenko; M. Idzik; P. Ilten; R. Jacobsson; A. Jaeger; E. Jans; P. Jaton; A. Jawahery; F. Jing; M. John; D. Johnson; C. R. Jones; C. Joram; B. Jost; M. Kaballo; S. Kandybei; W. Kanso; M. Karacson; T. M. Karbach; I. R. Kenyon; T. Ketel; A. Keune; B. Khanji; O. Kochebina; I. Komarov; R. F. Koopman; P. Koppenburg; M. Korolev; A. Kozlinskiy; L. Kravchuk; K. Kreplin; M. Kreps; G. Krocker; P. Krokovny; F. Kruse; M. Kucharczyk; V. Kudryavtsev; T. Kvaratskheliya; V. N. La Thi; D. Lacarrere; G. Lafferty; A. Lai; D. Lambert; R. W. Lambert; E. Lanciotti; G. Lanfranchi; C. Langenbruch; T. Latham; C. Lazzeroni; R. Le Gac; J. van Leerdam; J. -P. Lees; R. Lefèvre; A. Leflat; J. Lefrançois; S. Leo; O. Leroy; T. Lesiak; B. Leverington; Y. Li; L. Li Gioi; M. Liles; R. Lindner; C. Linn; B. Liu; G. Liu; S. Lohn; I. Longstaff; J. H. Lopes; N. Lopez-March; H. Lu; D. Lucchesi; J. Luisier; H. Luo; F. Machefert; I. V. Machikhiliyan; F. Maciuc; O. Maev; S. Malde; G. Manca; G. Mancinelli; J. Maratas; U. Marconi; P. Marino; R. Märki; J. Marks; G. Martellotti; A. Martens; A. Martín Sánchez; M. Martinelli; D. Martinez Santos; D. Martins Tostes; A. Massafferri; R. Matev; Z. Mathe; C. Matteuzzi; E. Maurice; A. Mazurov; B. Mc Skelly; J. McCarthy; A. McNab; R. McNulty; B. Meadows; F. Meier; M. Meissner; M. Merk; D. A. Milanes; M. -N. Minard; J. Molina Rodriguez; S. Monteil; D. Moran; P. Morawski; A. Mordà; M. J. Morello; R. Mountain; I. Mous; F. Muheim; K. Müller; R. Muresan

2013-07-31T23:59:59.000Z

49

Detection of Atherosclerotic Coronary Plaques by Fluorescence Lifetime Imaging Angioscopy  

E-Print Network [OSTI]

and sliced open to have their lumens imaged. For each sample, 51 time resolved wide-field images were taken over 10 nanoseconds at 390 (±40) nm, 450 (±40) nm, and 550 (±88) nm wavelengths. To analyze the samples, the intensity map and lifetime map were...

Thomas, Patrick A.

2010-10-12T23:59:59.000Z

50

AIAA-2001-0025 SPECTRUM FATIGUE LIFETIME AND RESIDUAL STRENGTH  

E-Print Network [OSTI]

on a typical fiberglass laminate configuration turbine blade fiberglass material has been undertaken under at various fractions of the lifetime turbine blade materials.. are consistent with the residual strength of fiberglass spectrum have been studied. Data have been obtained for materials produce results that may

51

E-Print Network 3.0 - accurate lifetime measurements Sample Search...  

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

Science 45 Measurements of the mean lifetime and kinetic-energy release of metastable CO2 J. P. Bouhnik,* I. Gertner, and B. Rosner Summary: Measurements of the mean lifetime...

52

UIUC Collector Erosion and Optical Lifetime Project Results: Time Dependent Exposures  

E-Print Network [OSTI]

UIUC Collector Erosion and Optical Lifetime Project Results: Time Dependent Exposures Darren A is the lifetime of collector optics. Frequent replacement of the mirror system will detract from the economic

Spila, Timothy P.

53

Apparatus for measuring minority carrier lifetimes in semiconductor materials  

DOE Patents [OSTI]

An apparatus for determining the minority carrier lifetime of a semiconductor sample includes a positioner for moving the sample relative to a coil. The coil is connected to a bridge circuit such that the impedance of one arm of the bridge circuit is varied as sample is positioned relative to the coil. The sample is positioned relative to the coil such that any change in the photoconductance of the sample created by illumination of the sample creates a linearly related change in the input impedance of the bridge circuit. In addition, the apparatus is calibrated to work at a fixed frequency so that the apparatus maintains a consistently high sensitivity and high linearly for samples of different sizes, shapes, and material properties. When a light source illuminates the sample, the impedance of the bridge circuit is altered as excess carriers are generated in the sample, thereby producing a measurable signal indicative of the minority carrier lifetimes or recombination rates of the sample.

Ahrenkiel, Richard K. (Lakewood, CO)

1999-01-01T23:59:59.000Z

54

Orientation-Dependent Entanglement Lifetime in a Squeezed Atomic Clock  

SciTech Connect (OSTI)

We study experimentally the application of a class of entangled states, squeezed spin states, to the improvement of atomic-clock precision. In the presence of anisotropic noise, the entanglement lifetime is strongly dependent on squeezing orientation. We measure the Allan deviation spectrum of a clock operated with a phase-squeezed input state. For averaging times up to 50 s the squeezed clock achieves a given precision 2.8(3) times faster than a clock operating at the standard quantum limit.

Leroux, Ian D.; Schleier-Smith, Monika H.; Vuletic, Vladan [Department of Physics, MIT-Harvard Center for Ultracold Atoms and Research Laboratory of Electronics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139 (United States)

2010-06-25T23:59:59.000Z

55

Detection of counterfeit U.S. paper money using intrinsic fluorescence lifetime  

E-Print Network [OSTI]

-photon spectral and lifetime fluorescence microscopy," Appl. Opt. 43(27), 5173­5182 (2004). #118121 - $15.00 USD

Levene, Michael J.

56

Predictive Models of Li-ion Battery Lifetime (Presentation)  

SciTech Connect (OSTI)

Predictive models of Li-ion battery reliability must consider a multiplicity of electrochemical, thermal and mechanical degradation modes experienced by batteries in application environments. Complicating matters, Li-ion batteries can experience several path dependent degradation trajectories dependent on storage and cycling history of the application environment. Rates of degradation are controlled by factors such as temperature history, electrochemical operating window, and charge/discharge rate. Lacking accurate models and tests, lifetime uncertainty must be absorbed by overdesign and warranty costs. Degradation models are needed that predict lifetime more accurately and with less test data. Models should also provide engineering feedback for next generation battery designs. This presentation reviews both multi-dimensional physical models and simpler, lumped surrogate models of battery electrochemical and mechanical degradation. Models are compared with cell- and pack-level aging data from commercial Li-ion chemistries. The analysis elucidates the relative importance of electrochemical and mechanical stress-induced degradation mechanisms in real-world operating environments. Opportunities for extending the lifetime of commercial battery systems are explored.

Smith, K.; Wood, E.; Santhanagopalan, S.; Kim, G.; Shi, Y.; Pesaran, A.

2014-09-01T23:59:59.000Z

57

NEUTRON LIFETIME EXPERIMENT USING UCN STORAGE IN AN `ACCORDION-LIKE' TRAP  

E-Print Network [OSTI]

NEUTRON LIFETIME EXPERIMENT USING UCN STORAGE IN AN `ACCORDION-LIKE' TRAP BY ASHISH M. DESAI determination of the neutron lifetime has an impact on particle physics and cosmology. We report progress towards a measurement of the neutron lifetime using an accordion-like storage trap. Ultracold neutrons

Steyerl, Albert

58

Database of Low-E Storm Window Energy Performance across U.S. Climate Zones (Task ET-WIN-PNNL-FY13-01_5.3)  

SciTech Connect (OSTI)

This report describes process, assumptions, and modeling results produced in support of the Emerging Technologies Low-e Storm Windows Task 5.3: Create a Database of U.S. Climate-Based Analysis for Low-E Storm Windows. The scope of the overall effort is to develop a database of energy savings and cost effectiveness of low-E storm windows in residential homes across a broad range of U.S. climates using the National Energy Audit Tool (NEAT) and RESFEN model calculations. This report includes a summary of the results, NEAT and RESFEN background, methodology, and input assumptions, and an appendix with detailed results and assumptions by cliamte zone. Both sets of calculation results will be made publicly available through the Building America Solution Center.

Cort, Katherine A.; Culp, Thomas D.

2013-09-01T23:59:59.000Z

59

Silicon avalanche photodiode operation and lifetime analysis for small satellites  

E-Print Network [OSTI]

Silicon avalanche photodiodes (APDs) are sensitive to operating temperature fluctuations and are also susceptible to radiation flux expected in satellite-based quantum experiments. We introduce a low power voltage adjusting mechanism to overcome the effects of in-orbit temperature fluctuations. We also present data on the performance of Si APDs after irradiation (gamma-ray and proton beam). Combined with an analysis of expected orbital irradiation, we propose that a Si APD in a 400 km equatorial orbit may operate beyond the lifetime of the satellite.

Tan, Yue Chuan; Cheng, Cliff; Ling, Alexander

2013-01-01T23:59:59.000Z

60

Silicon avalanche photodiode operation and lifetime analysis for small satellites  

E-Print Network [OSTI]

Silicon avalanche photodiodes (APDs) are sensitive to operating temperature fluctuations and are also susceptible to radiation flux expected in satellite-based quantum experiments. We introduce a low power voltage adjusting mechanism to overcome the effects of in-orbit temperature fluctuations. We also present data on the performance of Si APDs after irradiation (gamma-ray and proton beam). Combined with an analysis of expected orbital irradiation, we propose that a Si APD in a 400 km equatorial orbit may operate beyond the lifetime of the satellite.

Yue Chuan Tan; Rakhitha Chandrasekara; Cliff Cheng; Alexander Ling

2013-06-28T23:59:59.000Z

Note: This page contains sample records for the topic "lifetime low-e double-pane" 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

Lifetime of 981-Kev State in Li-8  

E-Print Network [OSTI]

V y-ray transition observed at 0' to the beam axis was expected to be shifted upward in energy to 1017 keV (unattenuated shift). Since the lifetime was known to be much shorter than the slowing-down times typically obtainable with solid materials... target (full shift ?no significant slowing down of the recoiling nucleus before decay) and the energy of the Doppler- shifted y ray for a solid target (attenuated shift? target material chosen to maximize the slowing- down time). The attenuated...

Throop, M. J.; Youngblood, David H.; Morrison, G. C.

1971-01-01T23:59:59.000Z

62

Nanoscale fluorescence lifetime imaging with a single diamond NV center  

E-Print Network [OSTI]

Solid-state quantum emitters, such as artificially engineered quantum dots or naturally occurring defects in solids, are being investigated for applications ranging from quantum information science and optoelectronics to biomedical imaging. Recently, these same systems have also been studied from the perspective of nanoscale metrology. In this letter we study the near-field optical properties of a diamond nanocrystal hosting a single nitrogen vacancy center. We find that the nitrogen vacancy center is a sensitive probe of the surrounding electromagnetic mode structure. We exploit this sensitivity to demonstrate nanoscale fluorescence lifetime imaging microscopy (FLIM) with a single nitrogen vacancy center by imaging the local density of states of an optical antenna.

Ryan Beams; Dallas Smith; Timothy W. Johnson; Sang-Hyun Oh; Lukas Novotny; Nick Vamivakas

2013-03-05T23:59:59.000Z

63

Lifetimes of negative parity states in {sup 168}Er  

SciTech Connect (OSTI)

Using the GRID method the lifetimes of 12 states belonging to four negative parity bands in {sup 168}Er were measured at the high flux reactor of the Institut Laue-Langevin (ILL). For K{sup {pi}}=0{sub 1}{sup -} and K{sup {pi}}=2{sub 1}{sup -} bands the absolute E1 transitions are in agreement with those obtained within the framework of the sdf IBA-1 model and their octupole vibrational character is confirmed. (c) 2000 The American Physical Society.

Genilloud, L. [Institut de Physique, Universite de Fribourg, Perolles, CH-1700 Fribourg, (Switzerland)] [Institut de Physique, Universite de Fribourg, Perolles, CH-1700 Fribourg, (Switzerland); Jolie, J. [Institut de Physique, Universite de Fribourg, Perolles, CH-1700 Fribourg, (Switzerland)] [Institut de Physique, Universite de Fribourg, Perolles, CH-1700 Fribourg, (Switzerland); Boerner, H. G. [Institut Laue-Langevin, F-38042 Grenoble Cedex 9, (France)] [Institut Laue-Langevin, F-38042 Grenoble Cedex 9, (France); Lehmann, H. [Institut Laue-Langevin, F-38042 Grenoble Cedex 9, (France)] [Institut Laue-Langevin, F-38042 Grenoble Cedex 9, (France); Becvar, F. [Faculty of Mathematics and Physics, Charles University, CZ-180 00 Prague 8, (Czech Republic)] [Faculty of Mathematics and Physics, Charles University, CZ-180 00 Prague 8, (Czech Republic); Krticka, M. [Faculty of Mathematics and Physics, Charles University, CZ-180 00 Prague 8, (Czech Republic)] [Faculty of Mathematics and Physics, Charles University, CZ-180 00 Prague 8, (Czech Republic); Zamfir, N. V. [WNSL, Yale University, New Haven, Connecticut 06520 (United States) [WNSL, Yale University, New Haven, Connecticut 06520 (United States); Clark University, Worcester, Massachusetts 01610 (United States); Casten, R. F. [WNSL, Yale University, New Haven, Connecticut 06520 (United States)] [WNSL, Yale University, New Haven, Connecticut 06520 (United States)

2000-09-01T23:59:59.000Z

64

Positron lifetime spectrometer using a DC positron beam  

DOE Patents [OSTI]

An entrance grid is positioned in the incident beam path of a DC beam positron lifetime spectrometer. The electrical potential difference between the sample and the entrance grid provides simultaneous acceleration of both the primary positrons and the secondary electrons. The result is a reduction in the time spread induced by the energy distribution of the secondary electrons. In addition, the sample, sample holder, entrance grid, and entrance face of the multichannel plate electron detector assembly are made parallel to each other, and are arranged at a tilt angle to the axis of the positron beam to effectively separate the path of the secondary electrons from the path of the incident positrons.

Xu, Jun; Moxom, Jeremy

2003-10-21T23:59:59.000Z

65

Sandia National Laboratories: acceler-ated lifetime test  

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

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

66

A simulation model for the lifetime of wireless sensor networks  

E-Print Network [OSTI]

In this paper we present a model for the lifetime of wireless sensor networks. The model takes into consideration several parameters such as the total number of sensors, network size, percentage of sink nodes, location of sensors, the mobility of sensors, and power consumption. A definition of the life time of the network based on three different criteria is introduced; percentage of available power to total power, percentage of alive sensors to total sensors, and percentage of alive sink sensors to total sink sensors. A Matlab based simulator is developed for the introduced model. A number of wireless sensor networks scenarios are presented and discussed.

Elleithy, Abdelrahman

2012-01-01T23:59:59.000Z

67

Some problems of steam turbine lifetime assessment and extension  

SciTech Connect (OSTI)

The problems of lifetime assessment and extension in reference to power equipment (including high-temperature rotors and casings of power steam turbines) and theoretical and normative grounds for these procedures, as well as some specific measures to prolong the turbine service time and diagnose the turbine components` conditions in the operation process, were covered in many published works, including the authors` ones. The present paper is to consider in more details some aspects of these problems that have not been sufficiently considered in known publications. In particular, it seems important to dwell on experimental verification of some mathematical models for calculating temperatures, stresses, and strains in the turbine casings on the basis of direct measurements at turbines in service. Another item to be discussed ia an approach to choosing the system of interrelated criteria and safety factors referring to the upper admissible values of stresses, strains, cycles, and accumulated damage, as well as crack resistance, as applied to an adopted conception of the limiting states for the rotors and casings with taking into consideration their loads and resulted stress-strain states. In this connection, it is important to arrange and use properly the continuous monitoring of temperatures, stresses, and accumulated metal damage to assess the residual lifetime of the rotors and casings more accurately. Certain design, technology, and repair measures are briefly described. They have successfully been employed at fossil power plants of the former Soviet Union to raise the steam turbine reliability and durability.

Berlyand, V.; Pozhidaev, A.; Glyadya, A. [Kharkov Central Designers Bureau (Ukraine); Plotkin, E.; Avrutsky, G. [All-Russia Thermal Engineering Research Inst., Moscow (Russian Federation); Leyzerovich, A. [Actinium Corp., Mountain View, CA (United States)

1999-11-01T23:59:59.000Z

68

Apparatus for measuring minority carrier lifetimes in semiconductor materials  

DOE Patents [OSTI]

An apparatus for determining the minority carrier lifetime of a semiconductor sample includes a positioner for moving the sample relative to a coil. The coil is connected to a bridge circuit such that the impedance of one arm of the bridge circuit is varied as sample is positioned relative to the coil. The sample is positioned relative to the coil such that any change in the photoconductance of the sample created by illumination of the sample creates a linearly related change in the input impedance of the bridge circuit. In addition, the apparatus is calibrated to work at a fixed frequency so that the apparatus maintains a consistently high sensitivity and high linearly for samples of different sizes, shapes, and material properties. When a light source illuminates the sample, the impedance of the bridge circuit is altered as excess carriers are generated in the sample, thereby producing a measurable signal indicative of the minority carrier lifetimes or recombination rates of the sample. 17 figs.

Ahrenkiel, R.K.

1999-07-27T23:59:59.000Z

69

The Differential Lifetimes of Protostellar Gas and Dust Disks  

E-Print Network [OSTI]

We construct a protostellar disk model that takes into account the combined effect of viscous evolution, photoevaporation and the differential radial motion of dust grains and gas. For T Tauri disks, the lifetimes of dust disks that are mainly composed of millimeter sized grains are always shorter than the gas disks' lifetimes, and become similar only when the grains are fluffy (density 10 AU), without strong signs of gas accretion nor of millimeter thermal emission from the dust. For Herbig AeBe stars, the strong photoevaporation clears the inner disks in 10^6 yr, before the dust grains in the outer disk migrate to the inner region. In this case, the grains left behind in the outer gas disk accumulate at the disk inner edge (at 10-100 AU from the star). The dust grains remain there even after the entire gas disk has been photoevaporated, and form a gas-poor dust ring similar to that observed around HR 4796A. Hence, depending on the strength of the stellar ionizing flux, our model predicts opposite types of products around young stars. For low mass stars with a low photoevaporation rate, dust-poor gas disks with an inner hole would form, whereas for high mass stars with a high photoevaporation rate, gas-poor dust rings would form. This prediction should be examined by observations of gas and dust around weak line T Tauri stars and evolved Herbig AeBe stars.

Taku Takeuchi; C. J. Clarke; D. N. C. Lin

2005-03-22T23:59:59.000Z

70

Extending the lifetime of fuel cell based hybrid systems  

E-Print Network [OSTI]

Fuel cells are clean power sources that have much higher energy densities and lifetimes compared to batteries. However, fuel cells have limited load following capabilities and cannot be efficiently utilized if used in isolation. In this work, we consider a hybrid system where a fuel cell based hybrid power source is used to provide power to a DVFS processor. The hybrid power source consists of a room temperature fuel cell operating as the primary power source and a Li-ion battery (that has good load following capability) operating as the secondary source. Our goal is to develop polices to extend the lifetime of the fuel cell based hybrid system. First, we develop a charge based optimization framework which minimizes the charge loss of the hybrid system (and not the energy consumption of the DVFS processor). Next, we propose a new algorithm to minimize the charge loss by judiciously scaling the load current. We compare the performance of this algorithm with one that has been optimized for energy, and demonstrate its superiority. Finally, we evaluate the performance of the hybrid system under different system configurations and show how to determine the best combination of fuel cell size and battery capacity for a given embedded application.

Jianli Zhuo; Chaitali Chakrabarti; Naehyuck Chang; Sarma Vrudhula

2006-01-01T23:59:59.000Z

71

Window shopping  

SciTech Connect (OSTI)

The author addresses the energy efficiency of windows and describes changes and new products available in this consumer information article. Experiments currently being done by Lawrence Berkeley Laboratory (LBL), Bonneville Power Authority and the Washington State Energy Office show that some of these superwindows collect more energy from the sun than they let escape from inside the home. One type of window in current production is the low-E (low-emissivity) and the IGUs (insulated glass units). Low-E techniques include glazing of the glass with various materials including polyester and metallic coatings. Other measures include filling the airspace in double pane windows with argon, aerogel or by creating a vacuum in the airspace. Another factor the author considers is ultraviolet light protection.

Best, D.

1990-03-01T23:59:59.000Z

72

First $?K$ atom lifetime and $?K$ scattering length measurements  

E-Print Network [OSTI]

The results of a search for hydrogen-like atoms consisting of $\\pi^{\\mp}K^{\\pm}$ mesons are presented. Evidence for $\\pi K$ atom production by 24 GeV/c protons from CERN PS interacting with a nickel target has been seen in terms of characteristic $\\pi K$ pairs from their breakup in the same target ($178 \\pm 49$) and from Coulomb final state interaction ($653 \\pm 42$). Using these results the analysis yields a first value for the $\\pi K$ atom lifetime of $\\tau=(2.5_{-1.8}^{+3.0})$ fs and a first model-independent measurement of the S-wave isospin-odd $\\pi K$ scattering length $\\left|a_0^-\\right|=\\frac{1}{3}\\left|a_{1/2}-a_{3/2}\\right|= \\left(0.11_{-0.04}^{+0.09} \\right)M_{\\pi}^{-1}$ ($a_I$ for isospin $I$).

B. Adeva; L. Afanasyev; Y. Allkofer; C. Amsler; A. Anania; S. Aogaki; A. Benelli; V. Brekhovskikh; T. Cechak; M. Chiba; P. Chliapnikov; C. Ciocarlan; S. Constantinescu; P. Doskarova; D. Drijard; A. Dudarev; M. Duma; D. Dumitriu; D. Fluerasu; A. Gorin; O. Gorchakov; K. Gritsay; C. Guaraldo; M. Gugiu; M. Hansroul; Z. Hons; S. Horikawa; Y. Iwashita; V. Karpukhin; J. Kluson; M. Kobayashi; V. Kruglov; L. Kruglova; A. Kulikov; E. Kulish; A. Kuptsov; A. Lamberto; A. Lanaro; R. Lednicky; C. Mariñas; J. Martincik; L. Nemenov; M. Nikitin; K. Okada; V. Olchevskii; M. Pentia; A. Penzo; M. Plo; T. Ponta; P. Prusa; G. Rappazzo; A. Romero Vidal; A. Ryazantsev; V. Rykalin; J. Schacher; A. Sidorov; J. Smolik; S. Sugimoto; F. Takeutchi; L. Tauscher; T. Trojek; S. Trusov; T. Urban; T. Vrba; V. Yazkov; Y. Yoshimura; M. Zhabitsky; P. Zrelov

2014-03-04T23:59:59.000Z

73

Measurements of ultracold neutron lifetimes in solid deuterium  

E-Print Network [OSTI]

We present the first measurements of the survival time of ultracold neutrons (UCNs) in solid deuterium SD2. This critical parameter provides a fundamental limitation to the effectiveness of superthermal UCN sources that utilize solid ortho-deuterium as the source material. Superthermal UCN sources offer orders of magnitude improvement in the available densities of UCNs, and are of great importance to fundamental particle-physics experiments such as searches for a static electric dipole moment and lifetime measurements of the free neutron. These measurements are performed utilizing a SD2 source coupled to a spallation source of neutrons, providing a demonstration of UCN production in this geometry and permitting systematic studies of the influence of thermal up-scatter and contamination with para-deuterium on the UCN survival time.

C. L. Morris; J. M. Anaya; T. J. Bowles; B. W. Filippone; P. Geltenbort; R. E. Hill; M. Hino; S. Hoedl; G. E. Hogan; T. M. Ito; T. Kawai; K. Kirch; S. K. Lamoreaux; C. -Y. Liu; M. Makela; L. J. Marek; J. W. Martin; R. N. Mortensen; A. Pichlmaier; A. Saunders; S. J. Seestrom; D. Smith; W. Teasdale; B. Tipton; M. Utsuro; A. R. Young; J. Yuan

2001-09-28T23:59:59.000Z

74

Measurement of the B hadron lifetime at the SLC  

SciTech Connect (OSTI)

We have measured the average B hadron lifetime from Z{sup 0} {r arrow} b{bar b} events using the Mark II detector at the SLC. We use an impact parameter tag, requiring two or more tracks with significant impact parameter ({delta}) in a hemisphere, to obtain a 40% efficiency and an 80% B-purity. The {Sigma}{delta} distribution from charged tracks in the hemisphere opposite the tag is used to fit for {tau}{sub b}. From 53 tagged B decays we find {tau}{sub b} = 1.63{sub {minus}0.40}{sup +0.64}(stat) {plus minus}0.16(syst) psec (preliminary), consistent with the world average. This method can be competitive with {tau}{sub b} measurements using high P{sub T} leptons and has a different sensitivity to {tau}(B{sup +})/{tau}(B{sup 0}).

Fujino, D.

1991-11-01T23:59:59.000Z

75

Measurement of the B hadron lifetime at the SLC  

SciTech Connect (OSTI)

We have measured the average B hadron lifetime from Z{sup 0} {r_arrow} b{bar b} events using the Mark II detector at the SLC. We use an impact parameter tag, requiring two or more tracks with significant impact parameter ({delta}) in a hemisphere, to obtain a 40% efficiency and an 80% B-purity. The {Sigma}{delta} distribution from charged tracks in the hemisphere opposite the tag is used to fit for {tau}{sub b}. From 53 tagged B decays we find {tau}{sub b} = 1.63{sub {minus}0.40}{sup +0.64}(stat) {plus_minus}0.16(syst) psec (preliminary), consistent with the world average. This method can be competitive with {tau}{sub b} measurements using high P{sub T} leptons and has a different sensitivity to {tau}(B{sup +})/{tau}(B{sup 0}).

Fujino, D.; The MARK II Collaboration.

1991-11-01T23:59:59.000Z

76

The lifetime problem of evaporating black holes: mutiny or resignation  

E-Print Network [OSTI]

It is logically possible that regularly evaporating black holes exist in nature. In fact, the prevalent theoretical view is that these are indeed the real objects behind the curtain in astrophysical scenarios. There are several proposals for regularizing the classical singularity of black holes so that their formation and evaporation do not lead to information-loss problems. One characteristic is shared by most of these proposals: these regularly evaporating black holes present long-lived trapping horizons, with absolutely enormous evaporation lifetimes in whatever measure. Guided by the discomfort with these enormous and thus inaccessible lifetimes, we elaborate here on an alternative regularization of the classical singularity, previously proposed by the authors in an emergent gravity framework, which leads to a completely different scenario. In our scheme the collapse of a stellar object would result in a genuine time-symmetric bounce, which in geometrical terms amounts to the connection of a black-hole geometry with a white-hole geometry in a regular manner. The two most differential characteristics of this proposal are: i) the complete bouncing geometry is a solution of standard classical general relativity everywhere except in a transient region that necessarily extends beyond the gravitational radius associated with the total mass of the collapsing object; and ii) the duration of the bounce as seen by external observers is very brief (fractions of milliseconds for neutron-star-like collapses). This scenario motivates the search for new forms of stellar equilibrium different from black holes. In a brief epilogue we compare our proposal with a similar geometrical setting recently proposed by Haggard and Rovelli.

Carlos Barceló; Raúl Carballo-Rubio; Luis J. Garay; Gil Jannes

2015-02-09T23:59:59.000Z

77

Local Measurement of Fuel Energy Deposition and Heat Transfer Environment During Fuel Lifetime Using Controlled Calorimetry  

SciTech Connect (OSTI)

A comprehensive description of the accomplishments of the DOE grant titled, ''Local Measurement of Fuel Energy Deposition and Heat Transfer Environment During Fuel Lifetime using Controlled Calorimetry''.

Don W. Miller; Andrew Kauffmann; Eric Kreidler; Dongxu Li; Hanying Liu; Daniel Mills; Thomas D. Radcliff; Joseph Talnagi

2001-12-31T23:59:59.000Z

78

E-Print Network 3.0 - annihilation lifetime measurement Sample...  

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

with recent positron lifetime measurements for group IV and V refractory metal carbides and in hexagonal WC... ; this is lower than the values found for most transition...

79

E-Print Network 3.0 - accurate atomic lifetime Sample Search...  

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

compared... with recent positron lifetime measurements for group IV and V refractory metal carbides and in hexagonal WC... a very high electronic density. The corresponding...

80

E-Print Network 3.0 - analysing positron lifetime Sample Search...  

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

with recent positron lifetime measurements for group IV and V refractory metal carbides and in hexagonal WC... a very high electronic density. The corresponding positron ......

Note: This page contains sample records for the topic "lifetime low-e double-pane" 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

LIFETIME PREDICTION FOR MODEL 9975 O-RINGS IN KAMS  

SciTech Connect (OSTI)

The Savannah River Site (SRS) is currently storing plutonium materials in the K-Area Materials Storage (KAMS) facility. The materials are packaged per the DOE 3013 Standard and transported and stored in KAMS in Model 9975 shipping packages, which include double containment vessels sealed with dual O-rings made of Parker Seals compound V0835-75 (based on Viton{reg_sign} GLT). The outer O-ring of each containment vessel is credited for leaktight containment per ANSI N14.5. O-ring service life depends on many factors, including the failure criterion, environmental conditions, overall design, fabrication quality and assembly practices. A preliminary life prediction model has been developed for the V0835-75 O-rings in KAMS. The conservative model is based primarily on long-term compression stress relaxation (CSR) experiments and Arrhenius accelerated-aging methodology. For model development purposes, seal lifetime is defined as a 90% loss of measurable sealing force. Thus far, CSR experiments have only reached this target level of degradation at temperatures {ge} 300 F. At lower temperatures, relaxation values are more tolerable. Using time-temperature superposition principles, the conservative model predicts a service life of approximately 20-25 years at a constant seal temperature of 175 F. This represents a maximum payload package at a constant ambient temperature of 104 F, the highest recorded in KAMS to date. This is considered a highly conservative value as such ambient temperatures are only reached on occasion and for short durations. The presence of fiberboard in the package minimizes the impact of such temperature swings, with many hours to several days required for seal temperatures to respond proportionately. At 85 F ambient, a more realistic but still conservative value, bounding seal temperatures are reduced to {approx}158 F, with an estimated seal lifetime of {approx}35-45 years. The actual service life for O-rings in a maximum wattage package likely lies higher than the estimates due to the conservative assumptions used for the model. For lower heat loads at similar ambient temperatures, seal lifetime is further increased. The preliminary model is based on several assumptions that require validation with additional experiments and longer exposures at more realistic conditions. The assumption of constant exposure at peak temperature is believed to be conservative. Cumulative damage at more realistic conditions will likely be less severe but is more difficult to assess based on available data. Arrhenius aging behavior is expected, but non-Arrhenius behavior is possible. Validation of Arrhenius behavior is ideally determined from longer tests at temperatures closer to actual service conditions. CSR experiments will therefore continue at lower temperatures to validate the model. Ultrasensitive oxygen consumption analysis has been shown to be useful in identifying non-Arrhenius behavior within reasonable test periods. Therefore, additional experiments are recommended and planned to validate the model.

Hoffman, E.; Skidmore, E.

2009-11-24T23:59:59.000Z

82

--No Title--  

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

retrofits include window upgrades to double-pane, insulated, tempered glass to conserve electricity for heating and cooling; upgrading the water heater to an on-demand style;...

83

SO2 emissions and lifetimes: Estimates from inverse modeling using in situ and global, spacebased  

E-Print Network [OSTI]

SO2 emissions and lifetimes: Estimates from inverse modeling using in situ and global, spacebased 18 March 2011. [1] Topdown constraints on global sulfur dioxide (SO2) emissions are inferred through of GEOSChem for inversion of SO2 columns to emissions. The seasonal mean SO2 lifetime calculated with the GEOS

Martin, Randall

84

On Lifetime Extension and Route Stabilization of Energy-Efficient Broadcast Routing over MANET  

E-Print Network [OSTI]

of network lifetime. Keywords MANET, Adhoc Networks, Energy Efficient Routing, Multicasting Tree, BIP an approach that tries to develop energy-efficient broadcast routing trees. They presented a tree constructionOn Lifetime Extension and Route Stabilization of Energy- Efficient Broadcast Routing over MANET

Poovendran, Radha

85

Maximizing Lifetime in an Energy Constrained Wireless Sensor Array Using Team Optimization  

E-Print Network [OSTI]

Maximizing Lifetime in an Energy Constrained Wireless Sensor Array Using Team Optimization of Cooperating Systems Robert J. Marks II, Arindam K. Das, Mohamed El-Sharkawi Department of Electrical trees to do this. For a known node constellation, the maximum lifetime of a single tree is equal

Arabshahi, Payman

86

Ris-R-1515(EN) Lifetime Modelling of Lead Acid Batteries  

E-Print Network [OSTI]

Profile 18 3.2 Wind and PV test profiles for lifetime assessment 19 3.2.1 Renewable energy system profiles-01 Sponsorship: Cover : Pages: 82 Tables: 10 References: 18 Abstract: The performance and lifetime of energy storage in batteries are an important part of many renewable based energy systems. Not only do batteries

87

Environment and the Lifetime of Tropical Deep Convection in a Cloud-Permitting Regional Model Simulation  

SciTech Connect (OSTI)

By applying a cloud tracking algorithm to tropical convective systems simulated by a regional high resolution model, the study documents environmental conditions before and after convective systems are initiated over ocean and land by following them during their lifetime. The comparative roles of various environmental fields in affecting the lifetime of convection are also quantified. The statistics of lifetime, maximum area, propagation speed and direction of the simulated deep convection agrees well with geostationary satellite observations. Over ocean, convective systems enhance surface fluxes through the associated wind gusts as well as cooling and drying of the boundary layer. A significant relationship is found between the mean surface fluxes during their lifetime and the longevity of the systems which in turn is related to the initial intensity of the moist updraft and to a lesser extent upper level shear. Over land, on the other hand, convective activity suppresses surface fluxes through cloud cover and the lifetime of convection is related to the upper level shear during their lifetime and strength of the heat fluxes several hours before the initiation of convection. For systems of equal lifetime, those over land are significantly more intense than those over ocean especially during early stages of their lifetime.

Hagos, Samson M.; Feng, Zhe; McFarlane, Sally A.; Leung, Lai-Yung R.

2013-08-01T23:59:59.000Z

88

Post-Doctoral Research Associate Position in Photovoltaic Lifetime and Degradation Science  

E-Print Network [OSTI]

Post-Doctoral Research Associate Position in Photovoltaic Lifetime and Degradation Science A Post establish a facility for PV lifetime and degradation studies, including solar and environmental exposures and optical characterization techniques including UV/vis, FTIR and light scattering, and will develop

Rollins, Andrew M.

89

NEUTRON DAMAGE IN REACTOR PRESSURE-VESSEL STEEL EXAMINED WITH POSITRON ANNIHILATION LIFETIME SPECTROSCOPY  

E-Print Network [OSTI]

NEUTRON DAMAGE IN REACTOR PRESSURE-VESSEL STEEL EXAMINED WITH POSITRON ANNIHILATION LIFETIME-vessel steels. We irradiated samples ofASTM A508 nuclear reactor pressure-vessel steel to fast neutron 17 2 (PALS) to study the effects of neutron damage in the steels on positron lifetimes. Non

Motta, Arthur T.

90

Investigating Upper Bounds on Network Lifetime Extension for Cell-Based Energy Conservation Techniques  

E-Print Network [OSTI]

Investigating Upper Bounds on Network Lifetime Extension for Cell-Based Energy Conservation either for a base network (one without any energy conservation technique) or for one using cooperative energy conservation strategies. In this paper, we investigate the lifetime/density tradeoff under

Santi, Paolo

91

On how to calculate methane lifetime from OH concentrations (FORTRAN): Integer I, J, L ! counters  

E-Print Network [OSTI]

On how to calculate methane lifetime from OH concentrations (FORTRAN): Integer I, J, L ! counters_ch4 ! methane lifetime (years) C Initialize: ch4_sum=0. yield=0. C Calculate sums: Do J = 1 , JM Do I in tropospheric ozone and methane; global 3D model studies, Atmospheric Environment, 33, 961-977, 1999

Haak, Hein

92

A LIFETIME PREDICTION MODEL FOR SINGLE CRYSTAL SUPERALLOYS SUBJECTED TO THERMOMECHANICAL  

E-Print Network [OSTI]

-FATIGUE-OXIDATION DAMAGE A. M. ALAM1 and L. REMY2 1 ALSTOM (Power), Gas Turbine Design Department, Brown Boveri Strasse 7A LIFETIME PREDICTION MODEL FOR SINGLE CRYSTAL SUPERALLOYS SUBJECTED TO THERMOMECHANICAL CREEP 91003, Evry, France ABSTRACT This paper contains a brief description of a lifetime prediction model

Paris-Sud XI, Université de

93

Novel Battery Thermal Management System for Greater Lifetime Ratifying Current Quality and Safety Standard  

E-Print Network [OSTI]

acceptance; o power and energy capability; o reliability; o lifetime and life cycle cost. ThereofNovel Battery Thermal Management System for Greater Lifetime Ratifying Current Quality and Safety,Denmark. Temperature excursions and non-uniformity of the temperature inside the battery systems are the main concern

Andreasen, Søren Juhl

94

Measuring the Neutron Lifetime Using Magnetically Trapped Neutrons  

E-Print Network [OSTI]

The neutron beta-decay lifetime plays an important role both in understanding weak interactions within the framework of the Standard Model and in theoretical predictions of the primordial abundance of 4He in Big Bang Nucleosynthesis. In previous work, we successfully demonstrated the trapping of ultracold neutrons (UCN) in a conservative potential magnetic trap. A major upgrade of the apparatus is nearing completion at the National Institute of Standards and Technology Center for Neutron Research (NCNR). In our approach, a beam of 0.89 nm neutrons is incident on a superfluid 4He target within the minimum field region of an Ioffe-type magnetic trap. A fraction of the neutrons is downscattered in the helium to energies <200 neV, and those in the appropriate spin state become trapped. The inverse process is suppressed by the low phonon density of helium at temperatures less than 200 mK, allowing the neutron to travel undisturbed. When the neutron decays the energetic electron ionizes the helium, producing scintillation light that is detected using photomultiplier tubes. Statistical limitations of the previous apparatus will be alleviated by significant increases in field strength and trap volume resulting in twenty times more trapped neutrons.

C. M. O'Shaughnessy; R. Golub; K. W. Schelhammer; C. M. Swank; P. -N. Seo; P. R. Huffman; S. N. Dzhosyuk; C. E. H. Mattoni; L. Yang; J. M. Doyle; K. J. Coakley; A. K. Thompson; H. P. Mumm; S. K. Lamoreaux; G. Yang

2009-03-31T23:59:59.000Z

95

Measuring the Neutron Lifetime Using Magnetically Trapped Neutrons  

E-Print Network [OSTI]

The neutron beta-decay lifetime plays an important role both in understanding weak interactions within the framework of the Standard Model and in theoretical predictions of the primordial abundance of 4He in Big Bang Nucleosynthesis. In previous work, we successfully demonstrated the trapping of ultracold neutrons (UCN) in a conservative potential magnetic trap. A major upgrade of the apparatus is nearing completion at the National Institute of Standards and Technology Center for Neutron Research (NCNR). In our approach, a beam of 0.89 nm neutrons is incident on a superfluid 4He target within the minimum field region of an Ioffe-type magnetic trap. A fraction of the neutrons is downscattered in the helium to energies <200 neV, and those in the appropriate spin state become trapped. The inverse process is suppressed by the low phonon density of helium at temperatures less than 200 mK, allowing the neutron to travel undisturbed. When the neutron decays the energetic electron ionizes the helium, producing sci...

O'Shaughnessy, C M; Schelhammer, K W; Swank, C M; Seo, P -N; Huffman, P R; Dzhosyuk, S N; Mattoni, C E H; Yang, L; Doyle, J M; Coakley, K J; Thompson, A K; Mumm, H P; Lamoreaux, S K; Yang, G

2009-01-01T23:59:59.000Z

96

Battery Lifetime Analysis and Simulation Tool (BLAST) Documentation  

SciTech Connect (OSTI)

The deployment and use of lithium-ion batteries in automotive and stationary energy storage applications must be optimized to justify their high up-front costs. Given that batteries degrade with use and storage, such optimizations must evaluate many years of operation. As the degradation mechanisms are sensitive to temperature, state-of-charge histories, current levels, and cycle depth and frequency, it is important to model both the battery and the application to a high level of detail to ensure battery response is accurately predicted. To address these issues, the National Renewable Energy Laboratory has developed the Battery Lifetime Analysis and Simulation Tool (BLAST) suite of tools. This suite of tools pairs NREL's high-fidelity battery degradation model with a battery electrical and thermal performance model, application-specific electrical and thermal performance models of the larger system (e.g., an electric vehicle), application-specific system use data (e.g., vehicle travel patterns and driving data), and historic climate data from cities across the United States. This provides highly realistic, long-term predictions of battery response and thereby enables quantitative comparisons of varied battery use strategies.

Neubauer, J.

2014-12-01T23:59:59.000Z

97

First working group meeting on the minority carrier diffusion length/lifetime measurement: Results of the round robin lifetime/diffusion length tests  

SciTech Connect (OSTI)

As was noted in the cover letter that accompanied the samples, the eleven bare silicon samples were from various manufacturers. Table I lists the codes for the samples and the manufacturer of each sample. It also notes if the sample was single or poly-crystalline. The samples had been polished on one side before being sent out for measurements, but no further processing was done. The participants of the study were asked to measure either the lifetime or diffusion length of each of the samples using their standard procedure. Table II shows the experimental conditions used by the groups who measured diffusion length. All the diffusion length measurements were performed using the Surface Photovoltage method (SPV). Table M shows the experimental conditions for the lifetime measurements. All the lifetime measurements were made using the Photoconductance Decay method (PCD) under low level injection. These tables show the diameter of the spot size used during the measurement (the effective sampling area), the locations where measurements were taken, and the number of measurements taken at each location. Table N shows the results of the measurements. The table is divided into diffusion length and lifetime measurements for each sample. The values listed are the average values reported by each group. One of the immediate artifacts seen in the data is the large variation in the lifetime measurements. The values from MIT and Mobil are generally close. However, the measurements from NCSU are typically an order of magnitude lower.

Cudzinovic, M.; Sopori, B. [comp.] [comp.

1995-11-01T23:59:59.000Z

98

Los Alamos National Laboratory W76 Pit Tube Lifetime Study  

SciTech Connect (OSTI)

A metallurgical study was requested as part of the Los Alamos National Laboratory (LANL) W76-1 life-extension program (LEP) involving a lifetime analysis of type 304 stainless steel pit tubes subject to repeat bending loads during assembly and disassembly operations at BWXT/Pantex. This initial test phase was completed during the calendar years of 2004-2006 and the report not issued until additional recommended tests could be performed. These tests have not been funded to this date and therefore this report is considered final. Tubes were reportedly fabricated according to Rocky Flats specification P14548 - Seamless Type 304 VIM/VAR Stainless Steel Tubing. Tube diameter was specified as 0.125 inches and wall thickness as 0.028 inches. A heat treat condition is not specified and the hardness range specification can be characteristic of both 1/8 and 1/4 hard conditions. Properties of all tubes tested were within specification. Metallographic analysis could not conclusively determine a specified limit to number of bends allowable. A statistical analysis suggests a range of 5-7 bends with a 99.95% confidence limit. See the 'Statistical Analysis' section of this report. The initial phase of this study involved two separate sets of test specimens. The first group was part of an investigation originating in the ESA-GTS [now Gas Transfer Systems (W-7) Group]. After the bend cycle test parameters were chosen (all three required bends subjected to the same amount of bend cycles) and the tubes bent, the investigation was transferred to Terri Abeln (Metallurgical Science and Engineering) for analysis. Subsequently, another limited quantity of tubes became available for testing and were cycled with the same bending fixture, but with different test parameters determined by T. Abeln.

Abeln, Terri G. [Los Alamos National Laboratory

2012-04-25T23:59:59.000Z

99

Bulk Tungsten in the JET Divertor: Potential Influence of the Exhaustion of Ductility and Grain Growth on the Lifetime  

E-Print Network [OSTI]

Bulk Tungsten in the JET Divertor: Potential Influence of the Exhaustion of Ductility and Grain Growth on the Lifetime

100

Laser spectroscopic studies of state-dependent collisional quenching of the lifetimes of metastable antiprotonic helium atoms  

E-Print Network [OSTI]

Laser spectroscopic studies of state-dependent collisional quenching of the lifetimes of metastable antiprotonic helium atoms

Hori, M; Torii, H A; Ishikawa, T; Maas, F E; Yamazaki, T; Eades, John; Widmann, E; Kumakara, M; Morita, N; Sugai, I; Horváth, D; Ketzer, B; Hartmann, F J; Maierl, C; Hasinoff, M D; Von Egidy, T; Tamura, H

1998-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "lifetime low-e double-pane" 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

Advanced Models and Controls for Prediction and Extension of Battery Lifetime (Presentation)  

SciTech Connect (OSTI)

Predictive models of capacity and power fade must consider a multiplicity of degradation modes experienced by Li-ion batteries in the automotive environment. Lacking accurate models and tests, lifetime uncertainty must presently be absorbed by overdesign and excess warranty costs. To reduce these costs and extend life, degradation models are under development that predict lifetime more accurately and with less test data. The lifetime models provide engineering feedback for cell, pack and system designs and are being incorporated into real-time control strategies.

Smith, K.; Wood, E.; Santhanagopalan, S.; Kim, G.; Pesaran, A.

2014-02-01T23:59:59.000Z

102

Exciton Lifetime Paradoxically Enhanced by Dissipation and Decoherence - Toward Efficient Energy Conversion of Solar Cell  

E-Print Network [OSTI]

Energy dissipation and decoherence are at first glance harmful to acquiring long exciton lifetime desired for efficient photovoltaics. In the presence of both optically forbidden (namely, dark) and allowed (bright) excitons, however, they can be instrumental as suggested in photosynthesis. By simulating quantum dynamics of exciton relaxations, we show that the optimized decoherence that imposes a quantum-to-classical crossover with the dissipation realizes a dramatically longer lifetime. In an example of carbon nanotube, the exciton lifetime increases by nearly two orders of magnitude when the crossover triggers stable high population in the dark exciton.

Yamada, Yasuhiro; Imada, Masatoshi

2015-01-01T23:59:59.000Z

103

Exciton Lifetime Paradoxically Enhanced by Dissipation and Decoherence - Toward Efficient Energy Conversion of Solar Cell  

E-Print Network [OSTI]

Energy dissipation and decoherence are at first glance harmful to acquiring long exciton lifetime desired for efficient photovoltaics. In the presence of both optically forbidden (namely, dark) and allowed (bright) excitons, however, they can be instrumental as suggested in photosynthesis. By simulating quantum dynamics of exciton relaxations, we show that the optimized decoherence that imposes a quantum-to-classical crossover with the dissipation realizes a dramatically longer lifetime. In an example of carbon nanotube, the exciton lifetime increases by nearly two orders of magnitude when the crossover triggers stable high population in the dark exciton.

Yasuhiro Yamada; Youhei Yamaji; Masatoshi Imada

2015-02-25T23:59:59.000Z

104

Generation and Recombination Carrier Lifetimes in 4H SiC Epitaxial Wafers , M. J. Loboda1)  

E-Print Network [OSTI]

Generation and Recombination Carrier Lifetimes in 4H SiC Epitaxial Wafers G. Chung1) , M. J. Loboda comparative studies of recombination and carrier lifetimes in SiC. For the first time, both generation-wafer structures. The ratio of the generation to recombination lifetime is much different in SiC compared to Si

Schroder, Dieter K.

105

Norwegian National Program for Lifetime Commissioning and Energy Efficient Operation of Buildings  

E-Print Network [OSTI]

The project “Life-Time Commissioning for Energy Efficient Operation of Buildings” is actually a network of industrial companies, private and public entities, and R&D organizations. The overall objective of the project is to contribute...

Novakovic, V.; Djuric, N.; Holst, J.; Frydenlund, F.

2006-01-01T23:59:59.000Z

106

Comparison of spatially resolved carrier lifetimes in mc-Si with solar cell and material characteristics  

SciTech Connect (OSTI)

The authors introduce a novel application of modulated free carrier absorption (MFCA) for measuring minority carrier lifetimes in multicrystalline silicon with high spatial resolution. The improved lateral resolution compared to other contactless techniques allows the correlation between these lifetime maps and solar cell characteristics as well as microscopic properties, like dislocations, precipitates, oxygen concentration, etc. Comparisons of the lifetime maps measured on the starting material and light beam induced current (LBIC) maps exhibit a very good qualitative correlation of the structures observed in both cases. In addition, correlations to microscopic characteristics like high dislocation density in regions with low lifetimes are investigated and a comparison with spatially resolved FT-IR measurements of the interstitial oxygen concentration is performed.

Glunz, S.W.; Hebling, C.; Warta, W.; Wettling, W. [Fraunhofer-Inst. fuer Solare Energiesysteme, Freiburg (Germany)

1994-12-31T23:59:59.000Z

107

Measurement and model assessment of fluorescence lifetime sensing in multiply scattering media  

E-Print Network [OSTI]

fluorescent dyes, 3,3-diethylthiatricarbocyanine iodide (DTTCI) and Indocynanine Green (ICG), which exhibit distinctly different lifetimes and each exhibits single-exponential decay kinetics, were employed. Measurements of phase-modulation as a function...

Kuwana, Eddy

2005-08-29T23:59:59.000Z

108

Sacrificial high-temperature phosphorus diffusion gettering for lifetime improvement of multicrystalline silicon wafers  

E-Print Network [OSTI]

Iron is among the most deleterious lifetime-limiting impurities in crystalline silicon solar cells. In as-grown material, iron is present in precipitates and in point defects. To achieve conversion efficiencies in excess ...

Scott, Stephanie Morgan

2014-01-01T23:59:59.000Z

109

E-Print Network 3.0 - atomic lifetime based Sample Search Results  

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

with halogen atom. Nonetheless, we are able to account for the magnitudes of the caX and SrX lifetimes to 4... ). 19The computer programs used are based on those written by...

110

Quasiparticle lifetimes in magnesium clusters modeled by self-consistent GW? calculations  

E-Print Network [OSTI]

Quasiparticle (QP) lifetimes in magnesium clusters are calculated using many-body Green's-function theory. We analyze the effect of the self-consistency of the one-particle Green's function G on the calculations and ...

He, Yi

111

Lifetime measurements of high-lying short lived states in {sup 69}As  

SciTech Connect (OSTI)

Lifetimes of high-spin states in {sup 69}As have been measured using Doppler shift attenuation technique with the GASP and RFD setup. The determined transition probabilities indicate large deformation associated with some rotational bands in this nucleus.

Matejska-Minda, M.; Bednarczyk, P.; Fornal, B.; Ciemala, M.; Kmiecik, M.; Krzysiek, M.; Maj, A.; Meczynski, W.; Myalski, S.; Styczen, J.; Zieblinski, M.; Angelis, G. de; Huyuk, T.; Michelagnoli, C.; Sahin, E.; Aydin, S.; Farnea, E.; Menegazzo, R.; Recchia, F.; Ur, C. A. [Institute of Nuclear Physics, Polish Academy of Sciences, Krakow (Poland); INFN, Laboratori Nazionali di Legnaro, Legnaro (Italy); Dipartimento di Fisica e INFN Padova (Italy); Dipartimento di Fisica e INFN Milano (Italy); Heavy Ion Laboratory, University of Warsaw (Poland); University of York (United Kingdom); and others

2012-10-20T23:59:59.000Z

112

Supervised Machine Learning Algorithms for Early Detection of Oral Epithelial Cancer Using Fluorescence Lifetime Imaging Microscopy  

E-Print Network [OSTI]

In this study, the clinical potential of the endogenous multispectral Fluorescence lifetime imaging microscopy (FLIM) was investigated to objectively detect oral cancer. To this end, in vivo FLIM imaging was performed on a hamster cheek pouch model...

Lee, Joohyung

2014-08-06T23:59:59.000Z

113

Theory of SEI Formation in Rechargeable Batteries: Capacity Fade, Accelerated Aging and Lifetime Prediction  

E-Print Network [OSTI]

Cycle life is critically important in applications of rechargeable batteries, but lifetime prediction is mostly based on empirical trends, rather than mathematical models. In practical lithium-ion batteries, capacity fade ...

Pinson, Matthew Bede

114

The Application of Fluorescence Lifetime Imaging Microscopy to Quantitatively Map Mixing and Temperature in Microfluidic Systems   

E-Print Network [OSTI]

The technique of Fluorescence Lifetime Imaging Microscopy (FLIM) has been employed to quantitatively and spatially map the fluid composition and temperature within microfluidic systems. A molecular probe with a ...

Graham, Emmelyn M

2008-01-01T23:59:59.000Z

115

E-Print Network 3.0 - absorber element lifetime Sample Search...  

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

) o - is the change in the ring-down lifetime without and with the absorber present... -water interface as a function of bulk pH by the direct measurement of the absorbance of...

116

AYUSH: A Technique for Extending Lifetime of SRAM-NVM Hybrid Caches  

SciTech Connect (OSTI)

Recently, researchers have explored way-based hybrid SRAM-NVM (non-volatile memory) last level caches (LLCs) to bring the best of SRAM and NVM together. However, the limited write endurance of NVMs restricts the lifetime of these hybrid caches. We present AYUSH, a technique to enhance the lifetime of hybrid caches, which works by using data-migration to preferentially use SRAM for storing frequently-reused data. Microarchitectural simulations confirm that AYUSH achieves larger improvement in lifetime than a previous technique and also maintains performance and energy efficiency. For single, dual and quad-core workloads, the average increase in cache lifetime with AYUSH is 6.90X, 24.06X and 47.62X, respectively.

Mittal, Sparsh [ORNL; Vetter, Jeffrey S [ORNL

2014-01-01T23:59:59.000Z

117

Improved Measurement of the Muon Lifetime and Determination of the Fermi Constant  

E-Print Network [OSTI]

The MuLan collaboration has measured the lifetime of the positve muon to a precision of 1.0 parts per million. The Fermi constant is determined to a precision of 0.6 parts per million.

P. T. Debevec

2011-08-22T23:59:59.000Z

118

Cascade Problems in Some Atomic Lifetime Measurements at a Heavy-Ion Storage Ring  

SciTech Connect (OSTI)

Lifetimes of 3s{sup 2}3p{sup k} ground configuration levels of Al-, Si-, P-, and S-like ions of Be, Co, and Ni have been measured at a heavy-ion storage ring. Some of the observed decay curves show strong evidence of cascade repopulation from specific 3d levels that feature lifetimes in the same multi-millisecond range as the levels of the ground configuration.

Trabert, E; Hoffmann, J; Krantz, C; Wolf, A; Ishikawa, Y; Santana, J

2008-10-09T23:59:59.000Z

119

A portable time-domain LED fluorimeter for nanosecond fluorescence lifetime measurements  

SciTech Connect (OSTI)

Fluorescence lifetime measurements are becoming increasingly important in chemical and biological research. Time-domain lifetime measurements offer fluorescence multiplexing and improved handling of interferers compared with the frequency-domain technique. In this paper, an all solid-state, filterless, and highly portable light-emitting-diode based time-domain fluorimeter (LED TDF) is reported for the measurement of nanosecond fluorescence lifetimes. LED based excitation provides more wavelengths options compared to laser diode based excitation, but the excitation is less effective due to the uncollimated beam, less optical power, and longer latency in state transition. Pulse triggering and pre-bias techniques were implemented in our LED TDF to improve the peak optical power to over 100 mW. The proposed pulsing circuit achieved an excitation light fall time of less than 2 ns. Electrical resetting technique realized a time-gated photo-detector to remove the interference of the excitation light with fluorescence. These techniques allow the LED fluorimeter to accurately measure the fluorescence lifetime of fluorescein down to concentration of 0.5 ?M. In addition, all filters required in traditional instruments are eliminated for the non-attenuated excitation/emission light power. These achievements make the reported device attractive to biochemical laboratories seeking for highly portable lifetime detection devices for developing sensors based on fluorescence lifetime changes. The device was initially validated by measuring the lifetimes of three commercial fluorophores and comparing them with reported lifetime data. It was subsequently used to characterize a ZnSe quantum dot based DNA sensor.

Wang, Hongtao; Salthouse, Christopher D., E-mail: salthouse@ecs.umass.edu [Electrical and Computer Engineering Department, University of Massachusetts, Amherst, Massachusetts 01003 (United States); Center for Personalized Health Monitoring, University of Massachusetts, Amherst, Massachusetts 01003 (United States); Qi, Ying; Mountziaris, T. J. [Center for Personalized Health Monitoring, University of Massachusetts, Amherst, Massachusetts 01003 (United States) [Center for Personalized Health Monitoring, University of Massachusetts, Amherst, Massachusetts 01003 (United States); Chemical Engineering Department, University of Massachusetts, Amherst, Massachusetts 01003 (United States)

2014-05-15T23:59:59.000Z

120

Ratio of D/sup 0/ and D/sup +/ lifetimes from their semileptonic decays  

SciTech Connect (OSTI)

The conventional expectation for the decays of D mesons assumes that the charm quark decays in the presence of light, spectator quarks and thus the lifetimes of both charged and uncharged states are equal. In this article, evidence is presented from DELCO (at SPEAR) that the D lifetimes are quite different for neutral and charged mesons, and the results which have also become available from other experiments are reviewed.

Donaldson, G.J.

1980-06-01T23:59:59.000Z

Note: This page contains sample records for the topic "lifetime low-e double-pane" 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

Northern Kentucky University Honor Roll of Donors: Lifetime Giving Northern Kentucky University's lifetime giving societies recognize donors who have made significant contributions  

E-Print Network [OSTI]

Northern Kentucky University Honor Roll of Donors: Lifetime Giving Northern Kentucky University master's degrees are included. 1968 Society - ($5,000,000+) The Bank of Kentucky The Carol and Ralph Northern Kentucky Society - ($500,000+) William P. and Mary S. Butler Castellini Foundation Corporex Family

Boyce, Richard L.

122

Simulation free measurement of the B+ lifetime using decays selected using displaced tracks  

SciTech Connect (OSTI)

The lifetime of the B{sup {+-}} meson is measured using the decay channel B{sup +} {yields} {bar D}{sup 0}{pi}{sup +}. The measurement is made using approximately 1.0 fb{sup -1} of Tevatron proton-anti-proton collision data at {radical}s = 1.96 TeV collected by the CDF detector. The data were collected using impact parameter based triggers that were designed to select events with a secondary vertex. The trigger selection criteria result in data rich in a variety of B hadron decays, but intrinsically bias the lifetime distribution of the collected signal events. The traditional way to compensate for the bias is to use information from simulation. Presented here is a new method for correction of the lifetime bias using an analytical technique that uses information from the data only. This eliminates measurement uncertainty due to data and simulation agreement, ultimately resulting in a smaller systematic measurement uncertainty. The B{sup {+-}} lifetime measurement is the first measurement using this new technique and demonstrates its potential for use in future measurements. The B{sup {+-}} lifetime is measured to be {tau}(B{sup {+-}}) = 1.662 {+-} 0.023(stat) {+-} 0.015(syst)ps.

Malde, Sneha; /Oxford U.

2009-03-01T23:59:59.000Z

123

Phonon lifetime in SiSn and its suitability for hot-carrier solar cells  

SciTech Connect (OSTI)

We present a phononic and electronic study of SiSn in the zinc-blende phase. A detailed description of the longitudinal optical (LO) phonon decay in a three-phonon process is presented together with the corresponding lifetime. The necessity to go beyond the zone center phonon approximation in this case is highlighted as it reveals a steep dependence of the lifetime on the initial phonon wavenumber, which differs from usual semiconductors. The electronic band structure is calculated within the GW formalism and shows a small direct band gap. It is shown that the LO-phonon resulting from electron cooling has a lifetime four to eight orders of magnitude above all the known value in semiconductors for this process. We finally show the suitability of SiSn for hot-carrier solar cells, as it is endowed with ultra-slow cooling of hot carriers.

Levard, Hugo; Laribi, Sana; Guillemoles, Jean-François [Institute for Research and Development on Photovoltaic Energy (IRDEP), UMR 7174, EDF R and D/CNRS/Chimie ParisTech, 6 quai Watier, 78401 Chatou (France)

2014-06-02T23:59:59.000Z

124

Precision lifetime measurements of a single trapped ion with ultrafast laser pulses  

E-Print Network [OSTI]

We report precision measurements of the excited state lifetime of the $5p$ $^2P_{1/2}$ and $5p$ $^2P_{3/2}$ levels of a single trapped Cd$^+$ ion. The ion is excited with picosecond laser pulses from a mode-locked laser and the distribution of arrival times of spontaneously emitted photons is recorded. The resulting lifetimes are 3.148 $\\pm$ 0.011 ns and 2.647 $\\pm$ 0.010 ns for $^2P_{1/2}$ and $^2P_{3/2}$ respectively. With a total uncertainty of under 0.4%, these are among the most precise measurements of any atomic state lifetimes to date.

D. L. Moehring; B. B. Blinov; D. W. Gidley; R. N. Kohn Jr.; M. J. Madsen; T. D. Sanderson; R. S. Vallery; C. Monroe

2005-05-15T23:59:59.000Z

125

Dependence of nuclear spin singlet lifetimes on RF spin-locking power  

E-Print Network [OSTI]

We measure the lifetime of long-lived nuclear spin singlet states as a function of the strength of the RF spin-locking field and present a simple theoretical model that agrees well with our measurements, including the low-RF-power regime. We also measure the lifetime of a long-lived coherence between singlet and triplet states that does not require a spin-locking field for preservation. Our results indicate that for many molecules, singlet states can be created using weak RF spin-locking fields: more than two orders of magnitude lower RF power than in previous studies. Our findings suggest that in many biomolecules, singlets and related states with enhanced lifetimes might be achievable in vivo with safe levels of RF power.

Stephen J. DeVience; Ronald L. Walsworth; Matthew S. Rosen

2012-01-06T23:59:59.000Z

126

The Lifetime Estimate for ACSR Single-Stage Splice Connector Operating at Higher Temperatures  

SciTech Connect (OSTI)

This paper is the continuation of Part I effort to develop a protocol of integrating analytical and experimental approaches to evaluate the integrity of a full tension single-stage splice connector (SSC) assembly during service at high operating temperature.1The Part II efforts are mainly focused on the thermal mechanical testing, thermal-cycling simulation and its impact on the effective lifetime of the SSC system. The investigation indicates that thermal cycling temperature and frequency, conductor cable tension loading, and the compressive residual stress field within a SSC system have significant impact on the SSC integrity and the associated effective lifetime.

Wang, Jy-An John [ORNL; Graziano, Joe [Tennessee Valley Authority (TVA); Chan, John [Electric Power Research Institute (EPRI)

2011-01-01T23:59:59.000Z

127

The Effective Lifetime of ACSR Full Tension Splice Connector Operated at Higher Temperature  

SciTech Connect (OSTI)

This paper is to address the issues related to integrity of ACSR full tension splice connectors operated at high temperatures. A protocol of integrating analytical and experimental approaches to evaluate the integrity of a full tension single-stage splice connector (SSC) assembly during service at high operating temperature was developed. Based on the developed protocol the effective lifetime evaluation was demonstrated with ACSR Drake conductor SSC systems. The investigation indicates that thermal cycling temperature and frequency, conductor cable tension loading, and the compressive residual stress field within a SSC system have significant impact on the SSC integrity and the associated effective lifetime.

Wang, Jy-An John [ORNL] [ORNL; Lara-Curzio, Edgar [ORNL] [ORNL; King Jr, Thomas J [ORNL] [ORNL; Graziano, Joe [Tennessee Valley Authority (TVA)] [Tennessee Valley Authority (TVA); Chan, John [Electric Power Research Institute (EPRI)] [Electric Power Research Institute (EPRI); Goodwin, Tip [PBS& J] [PBS& J

2009-01-01T23:59:59.000Z

128

Nuclear matrix elements from direct lifetime or cross-section measurements  

SciTech Connect (OSTI)

The method of simultaneous lifetime and g factor measurements using a plunger device and the RDDS and TDRIV techniques is introduced. Results on lifetimes and hyperfine-interaction parameters for 2{sup +}{sub 1} states in {sup 104-108}Pd, {sup 96,98,104}Ru, and {sup 92,94}Zr, using a plunger device. Another method to obtain electromagnetic matrix elements is direct cross section measurements using NRF. The method is outlined, and some recent results on {sup 76}Se are shown.

Werner, V.; Cooper, N.; Hinton, M.; Ilie, G.; Radeck, D. [Wright Nuclear Structure Laboratory, Yale University, P.O. Box 208120, New Haven, CT 06520-8120 (United States); Wright Nuclear Structure Laboratory, Yale University, P.O. Box 208120, New Haven, CT 06520-8120 (United States) and Department of Physics, University of Surrey, Guilford, GU27XH (United Kingdom); Wright Nuclear Structure Laboratory, Yale University, P.O. Box 208120, New Haven, CT 06520-8120 (United States) and National Institute for Physics and Nuclear Engineering, P.O. Box MG-6, Bucharest-Magurele (Romania); Wright Nuclear Structure Laboratory, Yale University, P.O. Box 208120, New Haven, CT 06520-8120 (United States) and Institut fuer Kernphysik, Universitaet zu Koeln, Zuelpicher Str. 77, 50937 Koeln (Germany)

2012-11-20T23:59:59.000Z

129

Reporting on the lifetime of charmless B/s meson decay to K+ K-  

SciTech Connect (OSTI)

The authors use data collected by the displaced track trigger of the CDF Run II detector at TeVatron to measure the B mesons lifetime in the hadronic decays: B{sub u} {yields} D{sup 0}{pi}, B{sub d} {yields} D{sup {-+}}{pi}{sup {+-}}, B{sub d} {yields} D{sup {-+}}3{pi}, B{sub s} {yields} D{sub s}{sup {-+}}{pi}{sup {+-}}, B{sub s} {yields} D{sub s}{sup {-+}}3{pi}. Recent developments in the measurement of the lifetime of the charmless B{sub s} {yields} K{sup +}k{sup -} mode is presented.

Donega, M.; /Geneva U.

2005-01-01T23:59:59.000Z

130

A METHODOLOGY FOR THE CONTROL OF THE RESIDUAL LIFETIMES OF CARBON FIBRE  

E-Print Network [OSTI]

on composite materials, France (2005)" #12;carbon fibre composites are considered by these authors as beingA METHODOLOGY FOR THE CONTROL OF THE RESIDUAL LIFETIMES OF CARBON FIBRE REINFORCED COMPOSITE of their loading history with precision. KEYWORDS: pressure vessels, carbon fibre composites, life time prediction

Boyer, Edmond

131

Sensor Node Lifetime Analysis: Models and Tools Deokwoo Jung, Thiago Teixeira, Andreas Savvides  

E-Print Network [OSTI]

decisions, compute energy budgets and duty-cycles, and to preform side-by-side comparison of different's average lifetime for a given event arrival rate. Through comparison of the two models and a case study & Simulation Package (MATSNL). This demonstrates the use of the models using sample applications drawn from

Teixeira, Thiago

132

Feasibility of Underwater Sensor Networks for Lifetime Assessment of Offshore Civil Structures  

E-Print Network [OSTI]

Feasibility of Underwater Sensor Networks for Lifetime Assessment of Offshore Civil Structures is to investigate the feasibility of underwater sensor networks for offshore and deep-sea structural monitoring. In this paper, the network communication topology and in-network processing algorithm for two offshore wind

Zhou, Shengli

133

Sensor Network Lifetime Maximization Via Sensor Energy Balancing: Construction and Optimal Scheduling of Sensor Trees  

E-Print Network [OSTI]

in such a way that the total energy usage of the active sensor nodes in the tree is minimized. However whenSensor Network Lifetime Maximization Via Sensor Energy Balancing: Construction and Optimal Scheduling of Sensor Trees Ling Shi , Agostino Capponi , Karl H. Johansson and Richard M. Murray Abstract

Johansson, Karl Henrik

134

Minimizing Energy and Maximizing Network Lifetime Multicasting in Wireless Ad Hoc Networks  

E-Print Network [OSTI]

trees with multiple optimization objectives. A. Related Work A number of energy-aware broadcast] that the problem of finding a minimum-energy broadcast tree is NP-hard. Particularly in [2], they have shownMinimizing Energy and Maximizing Network Lifetime Multicasting in Wireless Ad Hoc Networks Weifa

Liang, Weifa

135

The average person sheds 40 pounds of skin during his or her lifetime. That's the  

E-Print Network [OSTI]

Q: MSU N 19 o. The average person sheds 40 pounds of skin during his or her lifetime. That whether they are facts or opinions. Fact or opinion? A fact is something that can be tested. An opinion is something that someone thinks or believes. 1. Wooly mammoths are extinct. fact opinion 2. Ear wax can

136

Shirokov's contracting lifetimes and the interpretation of velocity eigenstates for unstable quantons  

E-Print Network [OSTI]

This paper is concerned with the interpretation of velocity eigenstates for unstable quantons, their relationship to space like momentum eigenstates for such quantons and the explanation of Shirokovs contracting lifetimes for such velocity eigenstates. It is an elaboration of a portion of the authors earlier study.

Gordon N. Fleming

2009-11-02T23:59:59.000Z

137

Development of a high average current polarized electron source with long cathode operational lifetime  

SciTech Connect (OSTI)

Substantially more than half of the electromagnetic nuclear physics experiments conducted at the Continuous Electron Beam Accelerator Facility of the Thomas Jefferson National Accelerator Facility (Jefferson Laboratory) require highly polarized electron beams, often at high average current. Spin-polarized electrons are produced by photoemission from various GaAs-based semiconductor photocathodes, using circularly polarized laser light with photon energy slightly larger than the semiconductor band gap. The photocathodes are prepared by activation of the clean semiconductor surface to negative electron affinity using cesium and oxidation. Historically, in many laboratories worldwide, these photocathodes have had short operational lifetimes at high average current, and have often deteriorated fairly quickly in ultrahigh vacuum even without electron beam delivery. At Jefferson Lab, we have developed a polarized electron source in which the photocathodes degrade exceptionally slowly without electron emission, and in which ion back bombardment is the predominant mechanism limiting the operational lifetime of the cathodes during electron emission. We have reproducibly obtained cathode 1/e dark lifetimes over two years, and 1/e charge density and charge lifetimes during electron beam delivery of over 2?105???C/cm2 and 200 C, respectively. This source is able to support uninterrupted high average current polarized beam delivery to three experimental halls simultaneously for many months at a time. Many of the techniques we report here are directly applicable to the development of GaAs photoemission electron guns to deliver high average current, high brightness unpolarized beams.

C. K. Sinclair; P. A. Adderley; B. M. Dunham; J. C. Hansknecht; P. Hartmann; M. Poelker; J. S. Price; P. M. Rutt; W. J. Schneider; M. Steigerwald

2007-02-01T23:59:59.000Z

138

LIFETIME OF THE EXCITED STATE IN VIVO I. CHLOROPHYLL a IN ALGAE, AT ROOM  

E-Print Network [OSTI]

LIFETIME OF THE EXCITED STATE IN VIVO I. CHLOROPHYLL a IN ALGAE, AT ROOM AND AT LIQUID NITROGEN decay of chloro- phyll (Chl) a in the green alga Chlorella pyrenoidosa, the red alga Porphyridium cruentum, and the blue-green alga Anacystis nidulans was measured by the phase- shift method under

Govindjee

139

Lifetime Behavior and its Impact on Web Caching Xiangping Chen and Prasant Mohapatra  

E-Print Network [OSTI]

Lifetime Behavior and its Impact on Web Caching Xiangping Chen and Prasant Mohapatra Department@iastate.edu Abstract The exponential growth of the World Wide Web has made it the most popular information on the web to al­ leviate the web server load, conserve the network band­ width, and reduce the retrieval

Mohapatra, Prasant

140

Lifetime Assessment for Thermal Barrier Coatings: Tests for Measuring Mixed Mode Delamination Toughness  

E-Print Network [OSTI]

the thermally grown oxide (TGO), and a porous ceramic topcoat which serves as the thermal insulation. DetailsLifetime Assessment for Thermal Barrier Coatings: Tests for Measuring Mixed Mode Delamination Mechanisms leading to degradation of the adherence of thermal barrier coatings (TBC) used in aircraft

Hutchinson, John W.

Note: This page contains sample records for the topic "lifetime low-e double-pane" 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

A Hybrid Solid-State Storage Architecture for the Performance, Energy Consumption, and Lifetime Improvement  

E-Print Network [OSTI]

A Hybrid Solid-State Storage Architecture for the Performance, Energy Consumption, and Lifetime-place updating so that it significantly im- proves the usage efficiency of log pages by eliminating out- of results show that our proposed methods can substantially improve the perfor- mance, energy consumption

Giles, C. Lee

142

Extending the Lifetime of Media Recorders Constrained by Battery and Flash Memory Size  

E-Print Network [OSTI]

balancing the energy consumption and the flash memory usage. The proposed method can be effectively employed recorders that signifi- cantly enhances their lifetime while minimizing the flash memory usage.3 [Microcomputers]: Portable devices (e.g., laptops, personal digital assistants) General Terms Design, Performance

Kambhampati, Subbarao

143

Lifetime of the Bose Gas with Resonant Interactions B. S. Rem,1  

E-Print Network [OSTI]

Lifetime of the Bose Gas with Resonant Interactions B. S. Rem,1 A. T. Grier,1 I. Ferrier-Barbut,1 U at and around unitarity using a Feshbach resonance in lithium 7. At unitarity, we measure the temperature length a describing two-body interactions becomes infinite. It has been demonstrated both experimentally

144

Re-evaluation of the lifetimes of the major CFCs and CH3  

E-Print Network [OSTI]

Re-evaluation of the lifetimes of the major CFCs and CH3 CCl3 using atmospheric trends* M. Rigby, R interactions among natural and human climate system components; objectively assess uncertainty in economic, monitor and verify greenhouse gas emissions and climatic impacts. This reprint is one of a series intended

145

Photoconductive Decay Lifetime and Suns-Voc Diagnostics of Efficient Heterojunction Solar Cells: Preprint  

SciTech Connect (OSTI)

We report results of minority carrier lifetime measurements for double-sided p-type Si heterojunction devices and compare Suns-Voc results to Light I-V measurements on 1 cm2 solar cell devices measured on an AM1.5 calibrated XT-10 solar simulator.

Page, M. R.; Iwaniczko, E.; Xu, Y.; Roybal L.; Bauer, R.; Yan, H.-C.; Wang, Q.; Meier, D. L.

2008-05-01T23:59:59.000Z

146

Precision Measurement of the Mass and Lifetime of the ?[? over b] Baryon  

E-Print Network [OSTI]

We report on measurements of the mass and lifetime of the ?[- over b] baryon using about 1800 ?[- over b] decays reconstructed in a proton-proton collision data set corresponding to an integrated luminosity of 3.0??fb[superscript ...

Aaij, R.

147

STUDY OF CLOUD LIFETIME EFFECTS USING THE SGP HETEROGENEOUS DISTRIBUTED RADAR NETWORK: PRELIMINARY CONSIDERATIONS  

E-Print Network [OSTI]

STUDY OF CLOUD LIFETIME EFFECTS USING THE SGP HETEROGENEOUS DISTRIBUTED RADAR NETWORK: PRELIMINARY-dimensional morphology and life cycle of clouds. Detailing key cloud processes as they transit from the formation stage to precipitation onset and cloud dissipation is critical towards establishing uncertainties in climate models

148

Exploring the Multicast Lifetime Capacity of WANETs with Directional Multibeam Antennas  

E-Print Network [OSTI]

Columbia Vancouver, Canada leung@ece.ubc.ca Abstract--We explore the multicast lifetime capacity of energy a given task. Because energy supplied by batteries is likely to be scarce and non-renewable resource approaches for energy saving in WANETs. This is because directional communications can save transmission

Guo, Minyi

149

Distributed Algorithms for Lifetime Maximization in Sensor Networks via Min-Max  

E-Print Network [OSTI]

of the network and edges between nodes within maximum transmission range. Although the problem can in principle.lastname@tkk.fi Abstract We consider the problem of static transmission-power assignment for lifetime maximization to forward the collected data, at what intervals, transmission power levels, etc. One important goal

Orponen, Pekka

150

Alternative Size and Lifetime Measurements for High-Energy Heavy-Ion Collisions  

E-Print Network [OSTI]

Two-Particle correlations based on the interference of identical particles has provided the chief means for determining the shape and lifetime of sources in relativistic heavy ion collisions. Here, Strong and Coulomb induced correlations are shown to provide equivalent information.

Scott Pratt; Silvio Petriconi

2003-06-16T23:59:59.000Z

151

Near Infrared Dyes as Lifetime Solvatochromic Probes for Micropolarity Measurements of Biological Systems  

E-Print Network [OSTI]

Near Infrared Dyes as Lifetime Solvatochromic Probes for Micropolarity Measurements of Biological, metabolism, and excretion. With the recent widespread use of near-infrared (NIR) fluorescent dyes, ultraviolet/visible/near-infrared (NIR) absorption, and fluorescence (7,8) have been developed. The latter

Larson-Prior, Linda

152

Investigation on the performance of airliner cabin air filter throughout the lifetime usage  

E-Print Network [OSTI]

of Pollution Control and Resource Reuse, Tongji University, 1239 Siping Road, Shanghai, China 200092 2 School' exposure to particulate pollutants, most of aircraft environmental control systems have been installed1 Investigation on the performance of airliner cabin air filter throughout the lifetime usage Bin

Chen, Qingyan "Yan"

153

Lifetime Optimization of Multi-hop Wireless Sensor Networks by Regulating the Frequency of Use of  

E-Print Network [OSTI]

of Cooperative Transmission Jin Woo Jung and Mary Ann Ingram School of Electrical and Computer EngineeringLifetime Optimization of Multi-hop Wireless Sensor Networks by Regulating the Frequency of Use model, we show how Cooperative Transmission (CT), when it is used to extend the communication range, can

Ingram, Mary Ann

154

Kinetics of the photoreactions of some organic free radicals and lifetimes of electronically excited states  

SciTech Connect (OSTI)

The lifetimes of electronically excited states of the antraquinone radical anion and of the stable 1,3-bisdiphenylene-2-phenylallyl (DPPA) radical during their photoreactions with organic solvents have been evaluated by analyzing kinetic curves. The results obtained suggest that the anthraquinone radical anion undergoes a photoreaction in a quartet state, while DPPA does so in one of the higher doublet states.

Oginets, V.Ya.

1986-04-01T23:59:59.000Z

155

Electron generation of leptons and hadrons with reciprocal -quantized lifetimes and masses  

E-Print Network [OSTI]

1 Electron generation of leptons and hadrons with reciprocal -quantized lifetimes and masses generation occurs via an initial "-leap" from an electron pair to a "platform state" M, and then subsequent in the generation of hadron masses. In fact, the role of the electron in generating lepton masses has never been

156

Extending the Lifetime of Fuel Cell Based Hybrid Systems* Jianli Zhuo1, Chaitali Chakrabartil, Naehyuck Chang2, Sarma Vrudhula3  

E-Print Network [OSTI]

34.1 Extending the Lifetime of Fuel Cell Based Hybrid Systems* Jianli Zhuo1, Chaitali Chakrabartil@asu.edu ABSTRACT for portable applications. Fuel cells have very high energy densities Fuel cells are clean power densities and lifetimes compared to batteries. However, fuel cells

Kambhampati, Subbarao

157

Wafer Preparation and Iodine-Ethanol-Ethanol Passivation Procedure for Reproducible Minority-Carrier Lifetime Measurement: Preprint  

SciTech Connect (OSTI)

This paper describes reasons that lifetime measurments may be irreproducible using iodine-in-ethanol (I-E) passivation. Possible factors include the strength of the iodine in ethanol solution, wafer cleaning procedures, influence of wafer container during lifetime measurement, and stability of I-E.

Sopori, B.; Rupnowski, P.; Appel, J.; Mehta, V.; Li, C.; Johnston, S.

2008-05-01T23:59:59.000Z

158

Predicting the Remaining Useful Lifetime of a Proton Exchange Membrane Fuel Cell using an Echo State Network  

E-Print Network [OSTI]

1 Predicting the Remaining Useful Lifetime of a Proton Exchange Membrane Fuel Cell using an Echo industrial Fuel Cell (FC) application resides in the system limited useful lifetime. Consequently, it Membrane Fuel Cell using an iterative predictive structure, which is the most common approach performing

Boyer, Edmond

159

Franck-Condon factors, transition probabilities, and radiative lifetimes for hydrogen molecules and their isotopomeres  

SciTech Connect (OSTI)

stematic fundamental molecular database for all isotopomeres of the hydrogen molecule (H{sub 2}, D{sub 2}, T{sub 2}, HD, HT, DT) is calculated on the basis of the latest Born-Oppenheimer potential curves and the latest electronic dipole transition moments of hydrogen molecules. Vibrational eigenvalues, Franck-Condon factors, and vibrationally resolved transition probabilities are presented for electronic transitions in each multiplet system up to principal quantum number n = 4. Radiative lifetimes of the vibrational levels in the electronically excited states are obtained from the summation over the optically allowed transitions. In a similar manner, effective transition probabilities and effective radiative lifetimes of electronically excited states are determined assuming that only the lowest vibrational level in the ground state is populated, i.e. the data are directly applicable to molecular gases. Differences between the isotopomeres are discussed briefly.

Fantz, U. [Max-Planck-Institut fuer Plasmaphysik, EURATOM Association, Boltzmannstr. 2, D-85748 Garching (Germany)]. E-mail: fantz@ipp.mpg.de; Wuenderlich, D. [Max-Planck-Institut fuer Plasmaphysik, EURATOM Association, Boltzmannstr. 2, D-85748 Garching (Germany)

2006-11-15T23:59:59.000Z

160

Phosphazene Based Additives for Improvement of Safety and Battery Lifetimes in Lithium-Ion Batteries  

SciTech Connect (OSTI)

There need to be significant improvements made in lithium-ion battery technology, principally in the areas of safety and useful lifetimes to truly enable widespread adoption of large format batteries for the electrification of the light transportation fleet. In order to effect the transition to lithium ion technology in a timely fashion, one promising next step is through improvements to the electrolyte in the form of novel additives that simultaneously improve safety and useful lifetimes without impairing performance characteristics over wide temperature and cycle duty ranges. Recent efforts in our laboratory have been focused on the development of such additives with all the requisite properties enumerated above. We present the results of the study of novel phosphazene based electrolytes additives.

Mason K Harrup; Kevin L Gering; Harry W Rollins; Sergiy V Sazhin; Michael T Benson; David K Jamison; Christopher J Michelbacher

2011-10-01T23:59:59.000Z

Note: This page contains sample records for the topic "lifetime low-e double-pane" 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

Gamma-ray induced Doppler broadening and the determination of lifetimes of excited nuclear states  

SciTech Connect (OSTI)

Measurements of lifetimes of excited states in nuclei yield crucial information for sensitive tests of nuclear models. Here a novel method will be discussed which involves the GRID (Gamma Ray Induced Doppler broadening) technique, in which Doppler broadening is observed in a transition from a nucleus recoiling from the emission of a previous gamma ray. As the recoil energy is extremely small, ultra-high energy resolving power has to be used. To date all such experiments have been carried out at ILL using the GAMS4 double flat crystal spectrometer which is operated in a NIST-ILL collaboration. The method can be used for all lifetimes below a few picoseconds. The wide range of applicability, together with the very exhaustive set of data often obtained, is an advantage with respect to many other methods. The characteristic features of GRID will be discussed using some selected examples. 21 refs., 8 figs.

Boerner, H.G.; Jolie, J.; Robinson, S.J. (Institut Laue-Langevin, 38 - Grenoble (France)); Kessler, E.G.; Dewey, S.M.; Greene, G.; Deslattes, R. (National Inst. of Standards and Technology, Gaithersburg, MD (USA)); Ulbig, S.; Lieb, K.P. (Goettingen Univ. (Germany, F.R.)); Casten, R.F. (Brookhaven National Lab., Upton, NY (USA)); Krusche, B. (Giessen Univ. (Germany, F.R.)); Cizewski, J.A. (Rutgers--the

1990-01-01T23:59:59.000Z

162

Measurement of the Neutron Lifetime by Counting Trapped Protons in a Cold Neutron Beam  

E-Print Network [OSTI]

A measurement of the neutron lifetime $\\tau_{n}$ performed by the absolute counting of in-beam neutrons and their decay protons has been completed. Protons confined in a quasi-Penning trap were accelerated onto a silicon detector held at a high potential and counted with nearly unit efficiency. The neutrons were counted by a device with an efficiency inversely proportional to neutron velocity, which cancels the dwell time of the neutron beam in the trap. The result is $\\tau_{n} = (886.6\\pm1.2{\\rm [stat]}\\pm3.2{\\rm [sys]})$ s, which is the most precise measurement of the lifetime using an in-beam method. The systematic uncertainty is dominated by neutron counting, in particular the mass of the deposit and the $^{6}$Li({\\it{n,t}}) cross section. The measurement technique and apparatus, data analysis, and investigation of systematic uncertainties are discussed in detail.

J. S. Nico; M. S. Dewey; D. M. Gilliam; F. E. Wietfeldt; X. Fei; W. M. Snow; G. L. Greene; J. Pauwels; R. Eykens; A. Lamberty; J. Van Gestel; R. D. Scott

2004-11-19T23:59:59.000Z

163

Theory of SEI Formation in Rechargeable Batteries: Capacity Fade, Accelerated Aging and Lifetime Prediction  

E-Print Network [OSTI]

Cycle life is critically important in applications of rechargeable batteries, but lifetime prediction is mostly based on empirical trends, rather than mathematical models. In practical lithium-ion batteries, capacity fade occurs over thousands of cycles, limited by slow electrochemical processes, such as the formation of a solid-electrolyte interphase (SEI) in the negative electrode, which compete with reversible lithium intercalation. Focusing on SEI growth as the canonical degradation mechanism, we show that a simple single-particle model can accurately explain experimentally observed capacity fade in commercial cells with graphite anodes, and predict future fade based on limited accelerated aging data for short times and elevated temperatures. The theory is extended to porous electrodes, predicting that SEI growth is essentially homogeneous throughout the electrode, even at high rates. The lifetime distribution for a sample of batteries is found to be consistent with Gaussian statistics, as predicted by th...

Pinson, Matthew B

2012-01-01T23:59:59.000Z

164

Recombination Lifetime of InxGa1-xAs Alloys Used in Thermophotovoltaic Converters  

SciTech Connect (OSTI)

The family of ternary compounds of composition InxGa1-xAs are of considerable interest for thermophotovoltaic energy converters. The recombination lifetimes of the various compositions are critical to the successful application of these materials as efficient converters. Here we will describe experimental results on the composition. In0.53Ga0.47 that is lattice-matched to InP. We will also describe lifetime results on the compositions In0.68Ga0.32As, with bandgap of 0.60 eV to compositions In0.78Ga0.22As with a bandgap of 0.50 eV. Double heterostructure confinement devices have been made over a range of both n- and p-type doping. These results are preliminary, but the goal is to obtain the radiative and Auger recombination coefficients for the alloys in this composition range.

Ahrenkiel, R. K.; Ellingson, R.; Johnston, S.; Webb, J.; Carapella, J.; Wanlass, M.

1999-02-16T23:59:59.000Z

165

Measurement of the Lifetime of the B(±)(c) Meson in the Semileptonic Decay Channel  

E-Print Network [OSTI]

; published 2 March 2009) Using approximately 1:3 fb#2;1 of data collected by the D0 detector between 2002 and 2006, we measure the lifetime of the B#1;c meson in the B#1;c ! J=c#1;#1; þ X final state. A simultaneous unbinned likelihood fit to the J=c þ#1... weakly-decaying b hadrons. Examples of final states where the c quark acts as a spectator while the b quark decays weakly are B#1;c ! J=c#3;#1;, B#1;c ! J=cD#1;s , and B#1;c ! J=c ‘#1;#4;. In this Letter we present a measurement of the lifetime of the B#1...

Baringer, Philip S.; Bean, Alice; Clutter, Justace Randall; Moulik, Tania; Wilson, Graham Wallace

2009-03-02T23:59:59.000Z

166

Apparatus and method for measuring minority carrier lifetimes in semiconductor materials  

DOE Patents [OSTI]

An apparatus for determining the minority carrier lifetime of a semiconductor sample includes a positioner for moving the sample relative to a coil. The coil is connected to a bridge circuit such that the impedance of one arm of the bridge circuit is varied as sample is positioned relative to the coil. The sample is positioned relative to the coil such that any change in the photoconductance of the sample created by illumination of the sample creates a linearly related change in the input impedance of the bridge circuit. In addition, the apparatus is calibrated to work at a fixed frequency so that the apparatus maintains a consistently high sensitivity and high linearity for samples of different sizes, shapes, and material properties. When a light source illuminates the sample, the impedance of the bridge circuit is altered as excess carriers are generated in the sample, thereby producing a measurable signal indicative of the minority carrier lifetimes or recombination rates of the sample.

Ahrenkiel, Richard K. (Lakewood, CO); Johnston, Steven W. (Golden, CO)

2001-01-01T23:59:59.000Z

167

Lifetime of oil drops pressed by buoyancy against a planar interface: Large drops  

E-Print Network [OSTI]

In a previous report [10] it was shown that emulsion stability simulations are able to reproduce the lifetime of micrometer-size drops of hexadecane pressed by buoyancy against a planar water-hexadecane interface. It was confirmed that small drops (rioil stabilized with bovine serum albumin. The potential obtained is then employed to study the lifetime of deformable drops in the range 10 \\leq ri \\leq 1000 {\\mu}m. It is established that the average lifetime of these drops can be adequately replicated using the model of truncated spheres. However, the results depend sensibly on the expressions of the initial distance of deformation and the maximum film radius used in the calculations. The set of equations adequate for large drops is not satisfactory for medium-size drops (10 \\leq ri \\leq 100 {\\mu}m), and vice versa. In the case of large particles, the increase in the interfacial area as a consequence of the deformation of the drops generates a very large repulsive barrier which opposes coalescence. Nevertheless, the buoyancy force prevails. As a consequence, it is the hydrodynamic tensor of the drops which determine the characteristic behavior of the lifetime as a function of the particle size. While the average values of the coalescence time of the drops can be justified by the mechanism of film thinning, the scattering of the experimental data of large drops cannot be rationalized using the methodology previously described. A possible explanation of this phenomenon required elaborate simulations which combine deformable drops, capillary waves, repulsive interaction forces, and a time-dependent surfactant adsorption.

Clara Rojas; Máximo García-Sucre; Germán Urbina-Villalba

2011-09-22T23:59:59.000Z

168

Comparison of Accelerated Testing with Modeling to Predict Lifetime of CPV Solder Layers (Presentation)  

SciTech Connect (OSTI)

Concentrating photovoltaic (CPV) cell assemblies can fail due to thermomechanical fatigue in the die-attach layer. In this presentation, we show the latest results from our computational model of thermomechanical fatigue. The model is used to estimate the relative lifetime of cell assemblies exposed to various temperature histories consistent with service and with accelerated testing. We also present early results from thermal cycling experiments designed to help validate the computational model.

Silverman, T. J.; Bosco, N.; Kurtz, S.

2012-03-01T23:59:59.000Z

169

Lifetime performance of Brahman-Hereford crossbred calves influenced by environment and preweaning stocking rates  

E-Print Network [OSTI]

as to style and content by: J. W. Turner (Chair of Committee) F. M. ouq ett, (Men ber W, L. Mies (Member) R. L. Edwards (Head of Department) December 1992 ABSTRACT Lifetime Performance of Brahman-Hereford Crossbred Calves Influenced by Environment... effects when additional nutrition was provided through creep feeding (15 ~ 3 kg). Additional creep feeding effects have been documented by (Prichard et al. , 1983; Martin et al. , 1981, 1977; Stricker et al. , 1979 and Holloway and Totusek, 1973...

Harris, Billy Todd

2012-06-07T23:59:59.000Z

170

Measurement of D0 lifetime with the BaBar detector  

SciTech Connect (OSTI)

This work is the result of the researchers carried out during a three years Ph.D. period in the BABAR experiment. The first chapter consists in an introduction to the theoretical aspects of the D{sup 0} meson lifetime determination and CP violation parameters, as well as an overview of the CP violation in the B sector, which is the main topic of the experiment. The description of the experimental apparatus follows with particular attention to the Silicon Vertex Tracker detector, the most critical detector for the determination of decay vertices and thus of lifetimes and time dependent CP violation asymmetries. In the fourth chapter the operation and running of the vertex detector is described, as a result from the experience as Operation Manager of the SVT, with particular attention to the safety of the device and the data quality assurance. The last chapter is dedicated to the determination of the D{sup 0} meson lifetime with the BABAR detector, which is the main data analysis carried out by the candidate. The analysis is characterized by the selection of an extremely pure sample of D{sup 0} mesons for which the decay flight length and proper time is reconstructed. The description of the unbinned maximum likelihood fit follows, as well as the discussion of the possible sources of systematic uncertainties. In the appendix is also presented a preliminary study of a possible development regarding the determination of mixing and CP violation parameters for the D{sup 0} meson.

Simi, Gabriele; /Pisa U. /SLAC

2009-12-17T23:59:59.000Z

171

Effects of impurity atoms and molecules on the lifetime of antiprotonic helium atoms  

E-Print Network [OSTI]

Delayed annihilation time spectra of antiprotons (DATS) in room temperature helium gas have been studied as a function of the concentration of admixed noble gases (Ne, Ar, Kr, Xe) as well as molecular gases (N_2,O_2,H_2) at the low energy antiproton ring (LEAR) at CERN. The DATS were a superposition of two exponential components, one with lifetime of several 100 ns and the other with lifetime 1 to 3 \\mus. They showed a shorter average lifetime (T_{av}) than DATS of pure helium. Ne, Ar, and Kr were found to affect T_{av} only slightly even in concentrations up to 20\\%, while Xe showed a much stronger influence. In the case of molecular gases the presence of N_2 influenced the DATS much less than O_2 and H_2 which destroyed the metastability almost completely in concentrations of 100 ppm and less. The decay rate of the slow component of DATS was found to exhibit a linear relation to the number density of the admixture. From this a collisional destruction (``quenching'') cross section \\sigma_q was extracted. No ...

Widmann, E; Yamazaki, T; Hayano, R S; Iwasaki, M; Nakamura, S N; Tamura, H; Ito, T M; Kawachi, A; Nishida, N; Higemoto, M; Ito, Y; Morita, N; Hartmann, F J; Daniel, H; Von Egidy, T; Schmid, W; Hoffmann, J; Eades, John

1996-01-01T23:59:59.000Z

172

Measurement of the $B^-$ lifetime using a simulation free approach for trigger bias correction  

SciTech Connect (OSTI)

The collection of a large number of B hadron decays to hadronic final states at the CDF II detector is possible due to the presence of a trigger that selects events based on track impact parameters. However, the nature of the selection requirements of the trigger introduces a large bias in the observed proper decay time distribution. A lifetime measurement must correct for this bias and the conventional approach has been to use a Monte Carlo simulation. The leading sources of systematic uncertainty in the conventional approach are due to differences between the data and the Monte Carlo simulation. In this paper they present an analytic method for bias correction without using simulation, thereby removing any uncertainty between data and simulation. This method is presented in the form of a measurement of the lifetime of the B{sup -} using the mode B{sup -} {yields} D{sup 0}{pi}{sup -}. The B{sup -} lifetime is measured as {tau}{sub B{sup -}} = 1.663 {+-} 0.023 {+-} 0.015 ps, where the first uncertainty is statistical and the second systematic. This new method results in a smaller systematic uncertainty in comparison to methods that use simulation to correct for the trigger bias.

Aaltonen, T.; /Helsinki Inst. of Phys.; Adelman, J.; /Chicago U., EFI; Alvarez Gonzalez, B.; /Cantabria Inst. of Phys.; Amerio, S.; /INFN, Padua; Amidei, D.; /Michigan U.; Anastassov, A.; /Northwestern U.; Annovi, A.; /Frascati; Antos, J.; /Comenius U.; Apollinari, G.; /Fermilab; Appel, J.; /Fermilab; Apresyan, A.; /Purdue U. /Waseda U.

2010-04-01T23:59:59.000Z

173

Constraining the Lifetime of QSOs with Present-day Mass Function of Supermassive Black Holes  

E-Print Network [OSTI]

Using the theoretical models of the QSO formation, we can reproduce optical QSO luminosity functions (LFs) at high redshifts (z > 2.2). Two different models can reproduce LFs successfully, though the lifetime of QSOs, t_Q, and the relation between the black hole mass and the host halo mass are different each other; t_Q = 10^6yr, in one model, t_Q > 10^7yr, in other models. Here, we propose a method to break this degeneracy. We calculate the mass function of supermassive black holes (SMBHs) at z=2.5, and compare the result with the current mass function obtained by Salucci et al.(1999). In the shorter lifetime model, the mass function at z=2.5 exceeds that of z=0.0 by one order of magnitude, then it should be ruled out. We conclude that the lifetime is at least t_Q > 10^7yr. Next, we examine the difference of the formation epoch of SMBHs existing at z=3.0 for each model under the model assumptions. We simply discuss the difference of formation epoch as another possible model-discriminator.

T. Hosokawa

2002-05-13T23:59:59.000Z

174

Stress-temperature-lifetime response of nicalon fiber-reinforced SiC composites in air  

SciTech Connect (OSTI)

Time-to-failure tests were conducted in four-point flexure and in air as a function of stress levels and temperatures to study the lifetime response of various Nicalon fiber-reinforced SiC (designated as Nic/SiC) composites with a graphitic interfacial coating. The results indicated that all of the Nic/SiC composites exhibit a similar stress-dependent failure at applied stress greater than a threshold value. In this case, the lifetimes of the composites increased with decrease in both stress level and test temperature. The lifetime of the composites appeared to be relatively insensitive to the thickness of graphitic interface layer and was enhanced somewhat by the addition of oxidation inhibitors. Electron microscopy and oxidation studies indicated that the life of the Nic/SiC composites was governed by the oxidation of the graphitic interfaces and the on of glass(es) in composites due to the oxidation of the fiber and matrix, inhibitor phases.

Lin, Hua-Tay; Becher, P.F.

1996-02-01T23:59:59.000Z

175

Source fabrication and lifetime for Li{sup +} ion beams extracted from alumino-silicate sources  

SciTech Connect (OSTI)

A space-charge-limited beam with current densities (J) exceeding 1 mA/cm{sup 2} have been measured from lithium alumino-silicate ion sources at a temperature of {approx}1275 deg. C. At higher extraction voltages, the source appears to become emission limited with J{>=} 1.5 mA/cm{sup 2}, and J increases weakly with the applied voltage. A 6.35 mm diameter source with an alumino-silicate coating, {<=}0.25 mm thick, has a measured lifetime of {approx}40 h at {approx}1275 deg. C, when pulsed at 0.05 Hz and with pulse length of {approx}6 {mu}s each. At this rate, the source lifetime was independent of the actual beam charge extracted due to the loss of neutral atoms at high temperature. The source lifetime increases with the amount of alumino-silicate coated on the emitting surface, and may also be further extended if the temperature is reduced between pulses.

Roy, Prabir K.; Greenway, Wayne G.; Kwan, Joe W. [Lawrence Berkeley National Laboratory (LBNL), One Cyclotron Road, Berkeley, California 94720 (United States)

2012-04-15T23:59:59.000Z

176

Source fabrication and lifetime for Li{sup +} ion beams extracted from alumino-silicate sources  

SciTech Connect (OSTI)

A space-charge-limited beam with current densities (J) exceeding 1 mA/cm{sup 2} have been measured from lithium alumino-silicate ion sources at a temperature of ?1275{degrees}C. At higher extraction voltages, the source appears to become emission limited with J ? 1.5 mA/cm{sup 2}, and J increases weakly with the applied voltage. A source with an alumino-silicate coating 6.35 mm in diameter and ?0.25 mm thick, has a lifetime of ?40 hours at ?1275{degrees}C, when pulsed at 0.05 Hz and with pulse length of ?6 ?s each. At this rate, the source lifetime was independent of the actual beam charge extracted due to the loss of neutral atoms at high temperature. Furthermore, the source lifetime increases with the amount of alumino-silicate coated on the emitting surface, and may also be extended if the temperature is reduced between pulses.

Greenway, W. G.; Kwan, J. W.

2012-02-10T23:59:59.000Z

177

Source fabrication and lifetime for Li+ ion beams extracted from alumino-silicate sources  

SciTech Connect (OSTI)

A space-charge-limited beam with current densities (J) exceeding 1 mA/cm{sup 2} have been measured from lithium alumino-silicate ion sources at a temperature of #24;~1275#14;{degrees} C. At higher extraction voltages, the source appears to become emission limited with J #21;{>=} 1.5 mA/cm{sup 2}, and J increases weakly with the applied voltage. A 6.35 mm diameter source with an alumino-silicate coating, {<=}#20;0.25 mm thick, has a measured lifetime of ~#24;40 hours at ~#24;1275#14;{degrees} C, when pulsed at 0.05 Hz and with pulse length of #24;~6 μs each. At this rate, the source lifetime was independent of the actual beam charge extracted due to the loss of neutral atoms at high temperature. The source lifetime increases with the amount of alumino-silicate coated on the emitting surface, and may also be further extended if the temperature is reduced between pulses.

Roy, Prabir K.; Greenway, Wayne G.; Kwan, Joe W

2012-03-05T23:59:59.000Z

178

Studies on the Use of Liquid Surface Passivation for Lifetime Measurements on Good-Quality Silicon Wafers  

SciTech Connect (OSTI)

We evaluated several liquid passivants, viz. solutions of iodine ethanol (IE), quinhydrone methanol (QHM), and potassium cyanide (KCN), for measuring minority-carrier lifetime. Lifetime was measured by the WCT-100 (Sinton Instruments) and WT-2000 (Semilab). Our results show that both IE and QHM passivation are reliable mechanisms. We also find that the KCN solution is moderately passivating on oxidized surfaces, but is only minimally effective on bare Si surfaces. This paper presents details of our studies. In particular, the effect of illumination on IE-passivated surfaces and possible reasons for variations in lifetime measurement are discussed.

Devayajanam, S.; Rupnowski, P.; Shet, S.; Sopori, B. L.; Ravindra, N. M.; Caskey, D.; Chang, J.; Covington, J.

2011-01-01T23:59:59.000Z

179

Pulse length and terminal-level lifetime dependence of energy extraction for neodymium-doped phosphate amplifier glass  

SciTech Connect (OSTI)

On the basis of detailed numerical calculations, the authors have formulated an empirical expression for the saturation fluence in neodymium-doped phosphate amplifier glass that explicitly depends upon the ratio of the pulse width to the terminal-level lifetime. The empirical expression, when substituted within the Frantz-Nodvik solution for energy extraction, can be used to determine the impact of the lower level lifetime on the energy extracted from Nd:phosphate glass amplifiers. They used their empirical solution to model experimental gain-saturation data and determine the terminal-level lifetime. They compared this value with two independent experiments and found that all three experiments yielded similar results. The terminal-level lifetime of LG-750 at room temperature is found to be 253 ps {+-} 50 ps.

Bibeau, C.; Trenholme, J.B.; Payne, S.A. [Lawrence Livermore National Lab., CA (United States)] [Lawrence Livermore National Lab., CA (United States)

1996-08-01T23:59:59.000Z

180

Lifetime Tests on a High Ohms/Square Metalized High Crystalline Polypropylene Film Capacitor with Application to a Marx Modulator  

SciTech Connect (OSTI)

This paper presents accelerated lifetime tests on a polypropylene film capacitor. Experimental parameters (20% droop, 5 Hz repetition rate) simulate anticipated operating conditions encountered in the SLAC P2 Marx. Elevated film electric field stress is utilized as the acceleration parameter. Results indicate that, for the particular film of interest, a film stress of {approx}290 V/{mu}m corresponds to a 10{sup 5} hour lifetime. In addition, the voltage scaling exponent for this film is 13.1.

Kemp, Mark A.; Burkhart, Craig; Tang, Tao; /SLAC; ,

2010-06-07T23:59:59.000Z

Note: This page contains sample records for the topic "lifetime low-e double-pane" 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

Lifetime Response of a Hi-Nicalon Fiber-Reinforced Melt-Infiltrated SiC Matrix Composites  

SciTech Connect (OSTI)

Lifetime studies in four-point flexure were performed on a Hi-NicalonTM fiber-reinforced SiC matrix composite over a temperature range of 700 degrees to 1150 degrees C in air. The composite consisted of ~40 vol. % Hi-NicalonTM fiber (8-harness weave) with a 0.5 Mu-m BN fiber coating and a melt-infiltration SiC matrix wand was tested with as-machined surfaces. Lifetime results indicated that the composite exhibited a stress-dependent lifetime at stress levels above an apparent fatigue limit, similar to the trend observed in CG-NicalonTM fiber reinforced CVI SiC matrix composites. At less than or equal to 950 degrees C, the lifetimes of Hi-Nicalon/MI SiC composites decreased with increasing applied stress level and test temperature. However, the lifetimes were extended as test temperature increased from 950 degees to 1150 degrees C as a result of surface crack sealing due to glass formation by the oxidation of Mi SiC matrix. The lifetime governing processes were, in general, attributed to the progressive oxidation of BN fiber coating and formation of glassy phase, which formed a strong bond between fiber and matrix, resulting in embrittlement of the composite with time.

Becher, P.F.; Lin, H.T.; Singh, M.

1999-04-25T23:59:59.000Z

182

Intervention strategies for energy efficient municipal buildings: Influencing energy decisions throughout buildings` lifetimes  

SciTech Connect (OSTI)

The current energy-related decisionmaking processes that take place during the lifetimes of municipal buildings in San Francisco do not reflect our ideal picture of energy efficiency as a part of staff awareness and standard practice. Two key problems that undermine the success of energy efficiency programs are lost opportunities and incomplete actions. These problems can be caused by technology-related issues, but often the causes are institutional barriers (organizational or procedural {open_quotes}people problems{close_quotes}). Energy efficient decisions are not being made because of a lack of awareness or policy mandate, or because financial resources are not available to decisionmakers. The Bureau of Energy Conservation (BEC) is working to solve such problems in the City & County of San Francisco through the Intervention Strategies project. In the first phase of the project, using the framework of the building lifetime, we learned how energy efficiency in San Francisco municipal buildings can be influenced through delivering services to support decisionmakers; at key points in the process of funding, designing, constructing and maintaining them. The second phase of the project involved choosing and implementing five pilot projects. Through staff interviews, we learned how decisions that impact energy use are made at various levels. We compiled information about city staff and their needs, and resources available to meet those needs. We then designed actions to deliver appropriate services to staff at these key access points. BEC implemented five pilot projects corresponding to various stages in the building`s lifetime. These were: Bond Guidelines, Energy Efficient Design Practices, Commissioning, Motor Efficiency, and Facilities Condition Monitoring Program.

NONE

1993-12-31T23:59:59.000Z

183

Experimental limits on the proton life-time from the neutrino experiments with heavy water  

E-Print Network [OSTI]

Experimental data on the number of neutrons born in the heavy water targets of the large neutrino detectors are used to set the limit on the proton life-time independently on decay mode through the reaction d -> n+?. The best up-to-date limit tau_p > 4 10^23 yr with 95% C.L. is derived from the measurements with D_2O target (mass 267 kg) installed near the Bugey reactor. This value can be improved by six orders of magnitude with future data accumulated with the SNO detector containing 1000 t of D_2O.

V. I. Tretyak; Yu. G. Zdesenko

2001-04-11T23:59:59.000Z

184

Development of time projection chamber for precise neutron lifetime measurement using pulsed cold neutron beams  

E-Print Network [OSTI]

A new time projection chamber (TPC) was developed for neutron lifetime measurement using a pulsed cold neutron spallation source at the Japan Proton Accelerator Research Complex (J-PARC). Managing considerable background events from natural sources and the beam radioactivity is a challenging aspect of this measurement. To overcome this problem, the developed TPC has unprecedented features such as the use of polyether-ether-ketone plates in the support structure and internal surfaces covered with $^6$Li-enriched tiles to absorb outlier neutrons. In this paper, the design and performance of the new TPC are reported in detail.

Arimoto, Y; Igarashi, Y; Iwashita, Y; Ino, T; Katayama, R; Kitahara, R; Kitaguchi, M; Matsumura, H; Mishima, K; Oide, H; Otono, H; Sakakibara, R; Shima, T; Shimizu, H M; Sugino, T; Sumi, N; Sumino, H; Taketani, K; Tanaka, G; Tanaka, M; Tauchi, K; Toyoda, A; Yamada, T; Yamashita, S; Yokoyama, H; Yoshioka, T

2015-01-01T23:59:59.000Z

185

Work at FNAL to achieve long electron drift lifetime in liquid argon  

SciTech Connect (OSTI)

This note records some of the work done between July 2005 and July 2006 to achieve long (many milliseconds) electron drift lifetimes in liquid argon at Fermilab. The work is part of a process to develop some experience at Fermilab with the technology required to construct a large liquid argon TPC. This technology has been largely developed by the ICARUS collaboration in Europe and this process can be seen as technology transfer. The capability to produce liquid argon in which electrons have drift lifetimes of several milliseconds is crucial to a successful device. Liquid argon calorimeters have been successfully operated at Fermilab; their electro-negative contaminants are at the level of 10{sup -7} while the TPC we are considering requires a contamination level at the level of 10{sup -11}, tens of parts per trillion (ppt). As well as demonstrating the ability to produce liquid argon at this level of purity, the work is part of a program to test the effect on the electron drift time of candidate materials for the construction of a TPC in liquid argon.

Finley, D.; Jaskierny, W.; Kendziora, C.; Krider, J.; Pordes, S.; Rapidis, P.A.; Tope, T.; /Fermilab

2006-10-01T23:59:59.000Z

186

A Modification of the Inner and Outer Core for Reactor Pressure Vessel Lifetime Extension  

SciTech Connect (OSTI)

The feasibility of nuclear power plant lifetime extension was examined by reducing the fast neutron fluence at the reactor pressure vessel (RPV) and relieving irradiation embrittlement of materials, and thus ensuring enough structural integrity beyond the design lifetime. Two fluence reduction options, peripheral assembly replacement and additional shield installation in the outer core structures, were applied to the Kori Unit-1 reactor, and the fluence reduction effect was carefully analyzed. For an accurate estimate of the neutron fluence at the RPV and a reasonable description of the modified peripheral assemblies, a full-scope explicit modeling of a Monte Carlo simulation was employed in all calculations throughout this study. The Kori Unit-1 cycle-16 core was modeled on a three-dimensional representation by using the MCNP4B code, and the fluence distribution was estimated at the inner wall beltline around the circumferential weld of the RPV. On the basis of fracture toughness requirements of the RPV, the two modified cases were predicted to have an additional life of 7 to 10 effective full-power years. Throughout the core nuclear characteristics analyses, it was confirmed that the critical peaking factors for safe reactor operation were satisfied with the design limits.

Seo, Bo Kyun [Hanyang University (Korea, Republic of); Kim, Jong Kyung [Hanyang University (Korea, Republic of); Shin, Chang Ho [Hanyang University (Korea, Republic of); Kwon, Tae Je [Nuclear Fuel Company (Korea, Republic of)

2001-03-15T23:59:59.000Z

187

Constraining cloud lifetime effects of aerosols using A-Train satellite observations  

SciTech Connect (OSTI)

Aerosol indirect effects have remained the largest uncertainty in estimates of the radiative forcing of past and future climate change. Observational constraints on cloud lifetime effects are particularly challenging since it is difficult to separate aerosol effects from meteorological influences. Here we use three global climate models, including a multi-scale aerosol-climate model PNNL-MMF, to show that the dependence of the probability of precipitation on aerosol loading, termed the precipitation frequency susceptibility (S{sub pop}), is a good measure of the liquid water path response to aerosol perturbation ({lambda}), as both Spop and {lambda} strongly depend on the magnitude of autoconversion, a model representation of precipitation formation via collisions among cloud droplets. This provides a method to use satellite observations to constrain cloud lifetime effects in global climate models. S{sub pop} in marine clouds estimated from CloudSat, MODIS and AMSR-E observations is substantially lower than that from global climate models and suggests a liquid water path increase of less than 5% from doubled cloud condensation nuclei concentrations. This implies a substantially smaller impact on shortwave cloud radiative forcing (SWCF) over ocean due to aerosol indirect effects than simulated by current global climate models (a reduction by one-third for one of the conventional aerosol-climate models). Further work is needed to quantify the uncertainties in satellite-derived estimates of S{sub pop} and to examine S{sub pop} in high-resolution models.

Wang, Minghuai; Ghan, Steven J.; Liu, Xiaohong; Ecuyer, Tristan L.; Zhang, Kai; Morrison, H.; Ovchinnikov, Mikhail; Easter, Richard C.; Marchand, Roger; Chand, Duli; Qian, Yun; Penner, Joyce E.

2012-08-15T23:59:59.000Z

188

Spontaneous fission modes and lifetimes of super-heavy elements in the nuclear density functional theory  

E-Print Network [OSTI]

Lifetimes of super-heavy (SH) nuclei are primarily governed by alpha decay and spontaneous fission (SF). Here we study the competing decay modes of even-even SH isotopes with 108 density functional theory framework capable of describing the competition between nuclear attraction and electrostatic repulsion. The collective mass tensor of the fissioning superfluid nucleus is computed by means of the cranking approximation to the adiabatic time-dependent Hartree-Fock-Bogoliubov approach. Along the path to fission, our calculations allow for the simultaneous breaking of axial and space inversion symmetries; this may result in lowering SF lifetimes by more than seven orders of magnitude in some cases. We predict two competing SF modes: reflection-symmetric and reflection-asymmetric.The shortest-lived SH isotopes decay by SF; they are expected to lie in a narrow corridor formed by $^{280}$Hs, $^{284}$Fl, and $^{284}_{118}$Uuo that separates the regions of SH nuclei synthesized in "cold fusion" and "hot fusion" reactions. The region of long-lived SH nuclei is expected to be centered on $^{294}$Ds with a total half-life of ?1.5 days.

A. Staszczak; A. Baran; W. Nazarewicz

2012-08-06T23:59:59.000Z

189

Lifetime measurement of metastable fluorine atoms using electron cyclotron resonance plasma source  

SciTech Connect (OSTI)

The authors have measured the lifetime of metastable state (3s {sup 4}P{sub 5/2}) of F atoms by resonant laser-induced fluorescence method. For this experiment, a special 2.45 GHz electron cyclotron resonance (ECR) plasma source, which is highly efficient in F radical generation and free from magnetic field leakage in front of the beam-emitting orifice, has been developed. Using the ECR plasma gun, the authors observed a precision fluorescence spectrum related to 3p {sup 4}D{sub 7/2}{sup 0}(F=4){yields}3s {sup 4}P{sub 5/2}(F=3) transition of F radicals, which made it possible to experimentally determine the longitudinal velocity distribution and the angular spread of the F radical beam. Based on these measured beam characteristics, the authors extracted a true decay curve of fluorescence intensity as a function of distance from the source and determined the lifetime of F metastable state (3s {sup 4}P{sub 5/2}) as 7.3{+-}0.5 {mu}s.

Shimizu, Masao; Ohmi, Hiromasa; Kakiuchi, Hiroaki; Yasutake, Kiyoshi [Yasu Semiconductor Corporation, 686-1 Ichimiyake, Yasu-cho, Yasu-gun, Shiga 520-2632 (Japan); Department of Precision Science and Technology, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871 (Japan)

2006-11-15T23:59:59.000Z

190

Measurement of the B+- lifetime and top quark identification using secondary vertex b-tagging  

SciTech Connect (OSTI)

This dissertation presents a preliminary measurement of the B{sup {+-}} lifetime through the full reconstruction of its decay chain, and the identification of top quark production in the electron plus jets channel using the displaced vertex b-tagging method. Its main contribution is the development, implementation and optimization of the Kalman filter algorithm for vertex reconstruction, and of the displaced vertex technique for tagging jets arising from b quark fragmentation, both of which have now become part of the standard D0 reconstruction package. These two algorithms fully exploit the new state-of-the-art tracking detectors, recently installed as part of the Run 2 D0 upgrade project. The analysis is based on data collected during Run 2a at the Fermilab Tevatron p{bar p} Hadron Collider up to April 2003, corresponding to an integrated luminosity of 60 pb{sup -1}. The measured B meson lifetime of {tau} = 1.57 {+-} 0.18 ps is in agreement with the current world average, with a competitive level of precision expected when the full data sample becomes available.

Schwartzman, Ariel G

2004-02-01T23:59:59.000Z

191

Final Report on Work Performed Under Agreement  

SciTech Connect (OSTI)

Solutia Performance Films, utilizing funding from the U.S. Department of Energy's Buildings Technologies Program, completed research to develop, validate, and commercialize a range of cost-effective, low-emissivity energy-control retrofit window films with significantly improved emissivity over current technology. These films, sold under the EnerLogic® trade name, offer the energy-saving properties of modern low-e windows, with several advantages over replacement windows, such as: lower initial installation cost, a significantly lower product carbon footprint, and an ability to provide a much faster return on investment. EnerLogic® window films also offer significantly greater energy savings than previously available with window films with similar visible light transmissions. EnerLogic® window films offer these energy-saving advantages over other window films due to its ability to offer both summer cooling and winter heating savings. Unlike most window films, that produce savings only during the cooling season, EnerLogic® window film is an all-season, low-emissivity (low-e) film that produces both cooling and heating season savings. This paper will present technical information on the development hurdles as well as details regarding the following claims being made about EnerLogic® window film, which can be found at www.EnerLogicfilm.com: 1. Other window film technologies save energy. EnerLogic® window film's patent-pending coating delivers excellent energy efficiency in every season, so no other film can match its annual dollar or energy consumption savings. 2. EnerLogic® window film is a low-cost, high-return technology that compares favorably to other popular energy-saving measures both in terms of energy efficiency and cost savings. In fact, EnerLogic® window film typically outperforms most of the alternatives in terms of simple payback. 3. EnerLogic® window film provides unparalleled glass insulating capabilities for window film products. With its patent-pending low-e technology, EnerLogic® window film has the best insulating performance of any film product available. The insulating power of EnerLogic® window film gives single-pane windows the annual insulating performance of double-pane windows - and gives double-pane windows the annual insulating performance of triple-pane windows.

None

2012-04-15T23:59:59.000Z

192

An overview of the US Department of Energy Plant Lifetime Improvement Program  

SciTech Connect (OSTI)

This paper provides a brief summary of the U.S. Department of Energy`s (USDOE`s) cooperative effort with the nuclear industry to develop technology to manage the effects of material degradation in systems, structures and components (SSCs) that impact plant safety or can significantly improve plant performance/economics and to establish and demonstrate the license renewal process. Also included are efforts to reduce decontamination/decommission costs, and reduce the uncertainty in long-term service-life decision making. During 1995, the Plant Lifetime Improvement (PLIM) Program was renamed the Commercial Operating Light Water Reactor (COLWR) Program activities are focused on sustaining the LWR option for domestic electricity generation by supporting operation of existing LWRs as long as they are safe, efficient, and economical. The status of the key projects is discussed in this paper.

Moonka, A.K. [Los Alamos National Lab., NM (United States); Harrison, D.L. [USDOE, Washington, DC (United States)

1995-08-01T23:59:59.000Z

193

Theory and models of material erosion and lifetime during plasma instabilities in a tokamak environment.  

SciTech Connect (OSTI)

Surface and structural damage to plasma-facing components (PFCs) due to the frequent loss of plasma confinement remains a serious problem for the tokamak reactor concept. The deposited plasma energy causes significant surface erosion, possible structural failure, and frequent plasma contamination. Surface damage consists of vaporization, spallation, and liquid splatter of metallic materials. Structural damage includes large temperature increases in structural materials and at the interfaces between surface coatings and structural members. To evaluate the lifetimes of plasma-facing materials and nearby components and to predict the various forms of damage that they experience, comprehensive models (contained in the HEIGHTS computer simulation package) are developed, integrated self-consistently, and enhanced. Splashing mechanisms such as bubble boiling and various liquid magnetohydrodynamic instabilities and brittle destruction mechanisms of nonmelting materials are being examined. The design requirements and implications of plasma-facing and nearby components are discussed, along with recommendations to mitigate and reduce the effects of plasma instabilities on reactor components.

Hassanein, A.; Konkashbaev, I.

1999-11-08T23:59:59.000Z

194

EFFECTIVE LIFETIME ESTIMATE OF CRIMPED POWERLINE SPLICE CONNECTOR OPERATED AT HIGH TEMPERATURE  

SciTech Connect (OSTI)

This paper addresses the thermal-mechanical properties and performance characteristics of full tension splice connectors under high temperature operation, in particular those used in overhead transmission and distribution lines. Due to the increase in power demand existing overhead power transmission lines often need to operate at temperatures higher than those originally considered for their design. This has led to the accelerated aging and degradation of splice connectors. The compressive residual stresses induced by the crimping process within the splice connector provide the clamping forces to secure the conductor and therefore, the determination of the state of compressive residual stresses in splice connectors is a necessary requirement to provide an accurate estimate of their service lifetime. This paper presents a protocol for integrating analytical and experimental approaches to evaluate the integrity of a full tension single-stage splice connector assembly.

Wang, Jy-An John [ORNL] [ORNL; Lara-Curzio, Edgar [ORNL] [ORNL; King Jr, Thomas J [ORNL] [ORNL; An, Ke [ORNL] [ORNL; Hubbard, Camden R [ORNL] [ORNL

2008-01-01T23:59:59.000Z

195

Lifetime Measurement of the 2{sup +}{sub 1} state in {sup 20}C  

SciTech Connect (OSTI)

Establishing how and when large N/Z values require modified or new theoretical tools is a major quest in nuclear physics. Here we report the first measurement of the lifetime of the 2{sup +}{sub 1} state in the near-dripline nucleus {sup 20}C. The deduced value of {tau}{sub #28;2{sup +}{sub 1}} = 9.8 ± 2.8(stat){sup +0.5}{sub ?1.1}(syst) ps gives a reduced transition probability of B(E2;2{sup +}{sub 1}{yields}0{sup +}{sub g.s.}) = 7.5{sup +3.0}{sub ?1.7}(stat){sup +1.0}{sub ?0.4}(syst) e{sup 2}fm{sup 4} in good agreement with a shell model calculation using isospin-dependent effective charges.

Petri, Marina-Kalliopi; Fallon, Paul; Macchiavelli, Augusto; Paschalis, Stephanos; Starosta, Krzysztof; Baugher, Travis; Bazin, Daniel; Cartegni, Lucia; Clark, Roderick; Crawford, Heather; Cromaz, Mario; Dewald, Alfred; Gade, Alexandra; Grinyer, Geoff; Gros, Sebastian; Hackstein, Matthias; Jeppesen, Hendrick; Lee, I-Yang; McDaniel, Sean; Miller, Doug; Rajabali, Mustafa; Ratkiewicz, Andrew; Rother, Wolfram; Voss, Phillip; Walsh, Kathleen Ann; Weisshaar, Dirk; Wiedeking, Mathis; Brown, Boyd Alex

2011-06-28T23:59:59.000Z

196

Study of behavior and determination of customer lifetime value(CLV) using Markov chain model  

SciTech Connect (OSTI)

Customer Lifetime Value or CLV is a restriction on interactive marketing to help a company in arranging financial for the marketing of new customer acquisition and customer retention. Additionally CLV can be able to segment customers for financial arrangements. Stochastic models for the fairly new CLV used a Markov chain. In this model customer retention probability and new customer acquisition probability play an important role. This model is originally introduced by Pfeifer and Carraway in 2000 [1]. They introduced several CLV models, one of them only involves customer and former customer. In this paper we expand the model by adding the assumption of the transition from former customer to customer. In the proposed model, the CLV value is higher than the CLV value obtained by Pfeifer and Caraway model. But our model still requires a longer convergence time.

Permana, Dony, E-mail: donypermana@students.itb.ac.id [Statistics Research Division, Faculty of Mathematics and Natural Science, Bandung Institute of Technology, Indonesia and Statistics Study Program, Faculty of Mathematics and Natural Sciences, Padang State University (Indonesia); Indratno, Sapto Wahyu; Pasaribu, Udjianna S. [Statistics Research Division, Faculty of Mathematics and Natural Science, Bandung Institute of Technology (Indonesia)

2014-03-24T23:59:59.000Z

197

PREDICTION OF DISSOLVER LIFETIMES THROUGH NON-DESTRUCTIVE EVALUATION AND LABORATORY TESTING  

SciTech Connect (OSTI)

Non-destructive evaluation was used as the primary method of monitoring the corrosion degradation of nuclear material dissolvers and assessing the remaining lifetimes. Materials were typically processed in nitric acid based (4-14M) solutions containing fluoride concentrations less than 0.2 M. The primary corrosion issue for the stainless steel dissolvers is the occurrence of localized corrosion near the tank bottom and the heat affected zones of the welds. Laboratory data for a range of operational conditions, including solution chemistry and temperature, was used to assess the impact of processing changes on the dissolver corrosion rate. Experimental and NDE-based general corrosion rates were found to be in reasonable agreement for standard dissolution chemistries consisting of nitric acid with fluorides and at temperatures less than 95 C. Greater differences were observed when chloride was present as an impurity and temperatures exceeded 100 C.

Mickalonis, J.; Woodsmall, T.; Hinz, W.; Edwards, T.

2011-10-03T23:59:59.000Z

198

An overview of the United States Department of Energy plant lifetime improvement program  

SciTech Connect (OSTI)

Today, 109 nuclear power plants provide over 20 percent of the electrical energy generated in the US. The operating license of the first of these plants will expire in the year 2000; one third of the operating licenses will expire by 2010 and the remaining plant licenses are scheduled to expire by 2033. The National Energy Strategy assumes that 70 percent of these plants will continue to operate beyond their current license expiration to assist in ensuring an adequate, diverse, and environmentally acceptable energy supply for economic growth. In order to preserve this energy resource in the US three major tasks must be successfully completed: (1) establishment of the regulations, technical standards, and procedures for the preparation and review of a license renewal application; (2) development, verification, and validation of the various technical criteria and bases for needed monitoring, refurbishment, or replacement of plant equipment; and (3) demonstration of the regulatory process. Since 1985, the US Department of Energy (DOE) has been working with the nuclear industry and the US Nuclear Regulatory Commission (NRC) to establish and demonstrate the option to extend the life of nuclear power plants through the renewal of operating licenses. This paper focuses primarily on DOE`s Plant Lifetime Improvement (PLIM) Program efforts to develop the technical criteria and bases for effective aging management and lifetime improvement for continued operation of nuclear power plants. This paper describes current projects to resolve generic technical issues, including degradation of long-lived components, reactor pressure vessel (RPV) embrittlement management approaches, and analytical methodologies to characterize RPV integrity.

Rosinski, S.T.; Clauss, J.M. [Sandia National Labs., Albuquerque, NM (United States); Harrison, D.L. [USDOE, Washington, DC (United States)

1993-08-01T23:59:59.000Z

199

CONSTRAINTS ON THE LIFETIMES OF DISKS RESULTING FROM TIDALLY DESTROYED ROCKY PLANETARY BODIES  

SciTech Connect (OSTI)

Spitzer IRAC observations of 15 metal-polluted white dwarfs reveal infrared excesses in the spectral energy distributions of HE 0110-5630, GD 61, and HE 1349-2305. All three of these stars have helium-dominated atmospheres, and their infrared emissions are consistent with warm dust produced by the tidal destruction of (minor) planetary bodies. This study brings the number of metal-polluted, helium and hydrogen atmosphere white dwarfs surveyed with IRAC to 53 and 38, respectively. It also nearly doubles the number of metal-polluted helium-rich white dwarfs found to have closely orbiting dust by Spitzer. From the increased statistics for both atmospheric types with circumstellar dust, we derive a typical disk lifetime of log [t{sub disk}(yr)] = 5.6 {+-} 1.1 (ranging from 3 Multiplication-Sign 10{sup 4} to 5 Multiplication-Sign 10{sup 6} yr). This assumes a relatively constant rate of accretion over the timescale where dust persists, which is uncertain. We find that the fraction of highly metal-polluted helium-rich white dwarfs that have an infrared excess detected by Spitzer is only 23%, compared to 48% for metal-polluted hydrogen-rich white dwarfs, and we conclude from this difference that the typical lifetime of dusty disks is somewhat shorter than the diffusion timescales of helium-rich white dwarf. We also find evidence for higher time-averaged accretion rates onto helium-rich stars compared to the instantaneous accretion rates onto hydrogen-rich stars; this is an indication that our picture of evolved star-planetary system interactions is incomplete. We discuss some speculative scenarios that can explain the observations.

Girven, J.; Gaensicke, B. T.; Marsh, T. R. [Department of Physics, University of Warwick, Coventry CV4 7AL (United Kingdom); Brinkworth, C. S.; Hoard, D. W. [Spitzer Science Center, California Institute of Technology, Pasadena, CA 91125 (United States); Farihi, J. [Department of Physics and Astronomy, University of Leicester, Leicester LE1 7RH (United Kingdom); Koester, D., E-mail: j.m.girven@warwick.ac.uk [Institut fuer Theoretische Physik und Astrophysik, University of Kiel, 24098 Kiel (Germany)

2012-04-20T23:59:59.000Z

200

Progress on Establishing Guidelines for National Ignition Facility (NIF) Experiments to Extend Debris Shield Lifetime  

SciTech Connect (OSTI)

The survivability and performance of the debris shields on the National Ignition Facility (NIF) are a key factor for the successful conduct and affordable operation of the facility. The improvements required over Nova debris shields are described. Estimates of debris shield lifetimes in the presence of target emissions with 4 - 5 J/cm{sup 2} laser fluences (and higher) indicate lifetimes that may contribute unacceptably to operations costs for NIF. We are developing detailed guidance for target and experiment designers for NIF to assist in minimizing the damage to, and therefore the cost of, maintaining NIF debris shields. The guidance limits the target mass that is allowed to become particulate on the debris shields (300 mg). It also limits the amount of material that can become shrapnel for any given shot (10 mg). Finally, it restricts the introduction of non-volatile residue (NVR) that is a threat to the sol-gel coatings on the debris shields to ensure that the chamber loading at any time is less than 1 pg/cm{sup 2}. We review the experimentation on the Nova chamber that included measuring quantities of particulate on debris shields by element and capturing shrapnel pieces in aerogel samples mounted in the chamber. We also describe computations of x-ray emissions from a likely NIF target and the associated ablation expected from this x-ray exposure on supporting target hardware. We describe progress in assessing the benefits of a pre-shield and the possible impact on the guidance for target experiments on NIF. Plans for possible experimentation on Omega and other facilities to improve our understanding of target emissions and their impacts are discussed. Our discussion of planned future work provides a forum to invite possible collaboration with the IFE community.

Tobin, M; Eder, D; Braun, D; MacGowan, B

2000-07-26T23:59:59.000Z

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201

Development of high performance refractory fibers with enhanced insulating properties and longer service lifetimes  

SciTech Connect (OSTI)

We have initiated a three phase investigation of the development of high performance refractory fibers with enhanced insulating properties and longer usable lifetimes. This report presents the results of the first phase of the study, performed from Aug. 1989 through Feb. 1991, which shows that significant energy saving are possible through the use of high temperature insulating fibers that better retain their efficient insulating properties during the service lifetime of the fibers. The remaining phases of this program include the pilot scale development and then full scale production feasibility development and evaluation of enhanced high temperature refractory insulting fibers. This first proof of principle phase of the program presents a summary of the current use patterns of refractory fibers, a laboratory evaluation of the high temperature performance characteristics of selected typical refractory fibers and an analysis of the potential energy savings through the use of enhanced refractory fibers. The current use patterns of refractory fibers span a wide range of industries and high temperature furnaces within those industries. The majority of high temperature fiber applications are in furnaces operating between 2000 and 26000{degrees}F. The fibers used in furnaces operating within this range provide attractive thermal resistance and low thermal storage at reasonable cost. A series of heat treatment studies performed for this phase of the program has shown that the refractory fibers, as initially manufactured, have attractive thermal conductivities for high temperature applications but the fibers go through rapid devitrification and subsequent crystal growth upon high temperature exposure. Development of improved fibers, maintaining the favorable characteristics of the existing as-manufactured fibers, could save between 1 and 4% of the energy consumed in high temperature furnaces using refractory fibers.

Martin, P.C.; DePoorter, G.L.; Munoz, D.R.

1991-02-01T23:59:59.000Z

202

Evaluation of Lifetime of High Efficiency Organic Photovoltaic Devices: Cooperative Research and Development Final Report, CRADA Number CRD-10-379  

SciTech Connect (OSTI)

As a part of this joint work, Solarmer and NREL will investigate the lifetime and stability of Organic Photovoltaic Devices based on Solarmer high efficiency active layer materials.

Olson, D.

2013-04-01T23:59:59.000Z

203

Measurement of the B meson Lifetimes with the Collider Detector at Fermilab  

SciTech Connect (OSTI)

The lifetimes of the B{sup -}, B{sup 0} and B{sub s}{sup 0} mesons are measured using partially reconstructed semileptonic decays. Following semileptonic decay processes and their charge conjugates are used for this analysis: B{sup -}/B{sup 0} {yields} {ell}{sup -}{nu}D{sup 0}X; B{sup -}/B{sup 0} {yields} {ell}{sup -}{nu}D*{sup +}X; B{sub s}{sup 0} {yields} {ell}{sup -}{nu}D{sub s}{sup +}x, where {ell}{sup -} denotes either a muon or electron. The data are collected during 2002-2004 by the 8 GeV single lepton triggers in CDF Run II at the Fermilab Tevatron Collider. Corresponding integrated luminosity is about 260 and 360 pb{sup -1} used for the B{sup -}/B{sup 0} and B{sub s}{sup 0} lifetime analyses, respectively. With the single lepton triggers, events which contain a muon or electron with a transverse momentum greater than 8 GeV/c are selected. For these lepton candidates, further lepton identification cuts are applied to improve purity of the B semileptonic decay signal. After the lepton selection, three types of charm mesons associated with the lepton candidates are reconstructed. Following exclusive decay modes are used for the charm meson reconstruction: D{sup 0} {yields} K{sup -}{pi}{sup +}; D*{sup +} {yields} D{sup 0}{pi}{sub s}{sup +}, followed by D{sup 0} {yields} K{sup -}{pi}{sup +}; D{sub s}{sup +} {yields} {phi}{pi}{sup +}, followed by {phi} {yields} K{sup +}K{sup -}. Here {pi}{sub s}{sup +} denotes a slow pion from D*{sup +} decay. Species of the reconstructed charm meson identify the parent B meson species. However in the B{sup -}/B{sup 0} semileptonic decays, both mesons decay into the identical lepton + D{sup 0} final state. To solve this mixture of the B components in the D{sup 0} sample, they adopt the following method: First among the inclusive D{sup 0} sample, they look for the D*{sup +} {yields} D{sup 0} {pi}{sub s}{sup +} signal. The inclusive D{sup 0} sample is then split into the two samples of D{sup 0} mesons which are from the D*{sup +} meson and not from D*{sup +}. They use the fact that D*{sup +} sample is dominated by the B{sup 0} component, and the D{sup 0} sample after excluding the D*{sup +} events is dominated by the B{sup -} component. Fraction of remaining mixture of B{sup -}/B{sup 0} components in each sample is estimated using a Monte Carlo simulation. From the lepton + charm meson pairs, they measure the B meson decay lengths to extract the lifetimes. Since the B meson momentum, necessary to calculate the B meson decay time, is not fully reconstructed in semileptonic decays, the missing momentum is corrected using a Monte Carlo simulation during lifetime fits. Also, contributions of various kinds of backgrounds are considered and subtracted. As a result of the fit, the B meson lifetimes are measured to be c{tau}(B{sup -}) = 495.6 {+-} 8.6 {sub -12.8}{sup +13.3} {micro}m; c{tau}(B{sup 0}) = 441.5 {+-} 10.9 {+-} 17.0 {micro}m; c{tau}(B{sub s}{sup 0}) = 414.0 {+-} 16.6 {sub -13.8}{sup +15.6} {micro}m or {tau}(B{sup 0}) = 1.653 {+-} 0.029 {sub -0.031}{sup +0.033} ps; {tau}(B{sup 0}) = 1.473 {+-} 0.036 {+-} 0.054 ps; {tau}(B{sub s}{sup 0}) = 1.381 {+-} 0.055 {sub -0.046}{sup +0.052} ps, and the lifetime ratios to be {tau}(B{sup 0})/{tau}(B{sup 0}) = 1.123 {+-} 0.040 {sub -0.039}{sup +0.041}; {tau}(B{sub s}{sup 0})/{tau}(B{sup 0}) = 0.938 {+-} 0.044 {sub -0.046}{sup +0.049} where the first uncertainty is statistical and the second is systematic.

Uozumi, Satoru; /Tsukuba U.

2006-01-01T23:59:59.000Z

204

Evaluation of the {sup 4}I{sub 11/2} terminal level lifetime for several neodymium-doped laser crystals and glasses  

SciTech Connect (OSTI)

All models of lasing action require knowledge of the physical parameters involved, of which many can be measured or estimated. The value of the terminal level lifetime is an important parameter in modeling many high power laser systems since the terminal level lifetime can have a substantial impact on the extraction efficiency of the system. However, the values of the terminal level lifetimes for a number of important laser materials such as ND:YAG and ND:YLF are not well known. The terminal level lifetime, a measure of the time it takes for the population to drain out of the terminal (lower) lasing level, has values that can range from picoseconds to microseconds depending on the host medium, thus making it difficult to construct one definitive experiment for all materials. Until recently, many of the direct measurements of the terminal level lifetime employed complex energy extraction or gain recovery methods coupled with a numerical model which often resulted in large uncertainties in the measured lifetimes. In this report we demonstrate a novel and more accurate approach which employs a pump-probe technique to measure the terminal level lifetime of 16 neodymium-doped materials. An alternative yet indirect method, which is based on the ``Energy Gap Law,`` is to measure the nonradiative lifetime of another transition which has the same energy gap as the transition of the terminal level lifetime. Employing this simpler approach, we measured the lifetime for 30 neodymium-doped materials. We show for the first time a direct comparison between the two methods and determine that the indirect method can be used to infer the terminal level lifetime within a factor of two for most neodymium-doped glasses and crystals.

Bibeau, C.

1995-04-25T23:59:59.000Z

205

Radiative lifetimes of the alkaline earth monohalides Paul J. Dagdigian, Howard W. Cruse*, and Richard N. Zare  

E-Print Network [OSTI]

standard deviation, are given in parentheses. The lifetimes of the caX and SrX states are seen moments. Por the X, A, and B states of CaX and SrX, the nonbonding orbital is primarily n s 0", n p 11

Zare, Richard N.

206

Energy Consumption in Wireless Sensor Networks is a fundamental issue in terms of functionality and network lifetime. Minimization  

E-Print Network [OSTI]

ABSTRACT Energy Consumption in Wireless Sensor Networks is a fundamental issue in terms of functionality and network lifetime. Minimization of energy consumption by applying optimization techniques setup. Application driven profiling of energy consumption at the node level is a useful tool for optimal

Vouyioukas, Demosthenes

207

Measurement of the [bar over B][0 over s] Meson Lifetime in D[+ over s]?[superscript ?] Decays  

E-Print Network [OSTI]

We present a measurement of the ratio of the [bar over B][0 over s] meson lifetime, in the flavor-specific decay to D[+ over s]?[superscript ?], to that of the [bar over B][superscript 0] meson. The pp collision data used ...

Aaij, R.

208

Measurements and calculations of metastable level lifetimes in Fe X, Fe XI, Fe XII, Fe XIII, and Fe XIV  

E-Print Network [OSTI]

Lifetimes of metastable levels in the ground term of Fe ions within the 3s(2)3p(k), k=1-5, isoelectronic sequences have been measured. These measurements were performed utilizing ions that were selected by mass to charge ratio while transported from...

Moehs, D. P.; Bhatti, M. I.; Church, David A.

2001-01-01T23:59:59.000Z

209

Dependence of nuclear spin singlet lifetimes on RF spin-locking power Stephen J. DeVience a,  

E-Print Network [OSTI]

Dependence of nuclear spin singlet lifetimes on RF spin-locking power Stephen J. DeVience a: Received 6 January 2012 Revised 14 March 2012 Available online 28 March 2012 Keywords: Nuclear singlet of long-lived nuclear spin singlet states as a function of the strength of the RF spin-locking field

Rosen, Matthew S

210

Prediction of the Creep-Fatigue Lifetime of Alloy 617: An Application of Non-destructive Evaluation and Information Integration  

SciTech Connect (OSTI)

A relatively simple method using the nominal constant average stress information and the creep rupture model is developed to predict the creep-fatigue lifetime of Alloy 617, in terms of time to rupture. The nominal constant average stress is computed using the stress relaxation curve. The predicted time to rupture can be converted to number of cycles to failure using the strain range, the strain rate during each cycle, and the hold time information. The predicted creep-fatigue lifetime is validated against the experimental measurements of the creep-fatigue lifetime collected using conventional laboratory creep-fatigue tests. High temperature creep-fatigue tests of Alloy 617 were conducted in air at 950°C with a tensile hold period of up to 1800s in a cycle at total strain ranges of 0.3% and 0.6%. It was observed that the proposed method is conservative in that the predicted lifetime is less than the experimentally determined values. The approach would be relevant to calculate the remaining useful life to a component like a steam generator that might fail by the creep-fatigue mechanism.

Vivek Agarwal; Richard Wright; Timothy Roney

2014-08-01T23:59:59.000Z

211

Lifetime studies of 130nm nMOS transistors intended for long-duration, cryogenic high-energy physics experiments.  

SciTech Connect (OSTI)

Future neutrino physics experiments intend to use unprecedented volumes of liquid argon to fill a time projection chamber in an underground facility. To increase performance, integrated readout electronics should work inside the cryostat. Due to the scale and cost associated with evacuating and filling the cryostat, the electronics will be unserviceable for the duration of the experiment. Therefore, the lifetimes of these circuits must be well in excess of 20 years. The principle mechanism for lifetime degradation of MOSFET devices and circuits operating at cryogenic temperatures is via hot carrier degradation. Choosing a process technology that is, as much as possible, immune to such degradation and developing design techniques to avoid exposure to such damage are the goals. This requires careful investigation and a basic understanding of the mechanisms that underlie hot carrier degradation and the secondary effects they cause in circuits. In this work, commercially available 130nm nMOS transistors operating at cryogenic temperatures are investigated. The results show that the difference in lifetime for room temperature operation and cryogenic operation for this process are not great and the lifetimes at both 300K and at 77K can be projected to more than 20 years at the nominal voltage (1.5V) for this technology.

Hoff, J.R.; /Fermilab; Arora, R.; Cressler, J.D.; /Georgia Tech; Deptuch, G.W.; /Fermilab; Gui, P.; /Southern Methodist U.; Lourenco, N.E.; /Georgia Tech; Wu, G.; /Southern Methodist U.; Yarema, R.J.; /Fermilab

2011-12-01T23:59:59.000Z

212

Improving the lifetime performance of ceramic fuel cells Fuel cells generate electricity from fuels more efficiently and with  

E-Print Network [OSTI]

to the development of low-cost, modular and fuel-flexible solid oxide fuel cell technology. #12;2014 Improving the lifetime performance of ceramic fuel cells Fuel cells generate electricity from fuels more efficiently and with fewer emissions per watt than burning fossil fuels. But as fuel cells

Rollins, Andrew M.

213

Long lifetime, low intensity light source for use in nighttime viewing of equipment maps and other writings  

DOE Patents [OSTI]

A long-lifetime light source with sufficiently low intensity to be used for reading a map or other writing at nighttime, while not obscuring the user's normal night vision. This light source includes a diode electrically connected in series with a small power source and a lens properly positioned to focus at least a portion of the light produced by the diode.

Frank, Alan M. (Livermore, CA); Edwards, William R. (Modesto, CA)

1983-01-01T23:59:59.000Z

214

IEEE TVLSI SPECIAL SECTION ON LOW POWER ELECTRONICS AND DESIGN 2007 1 Maximizing the Lifetime of Embedded Systems  

E-Print Network [OSTI]

of Embedded Systems Powered by Fuel Cell-Battery Hybrids Jianli Zhuo, Student Member, IEEE, Chaitali, and Sarma Vrudhula, Senior Member, IEEE Abstract--Fuel cell (FC) is a viable alternative power source capabilities. In this work, we consider the problem of extending the lifetime of a fuel-cell-based hybrid

Kambhampati, Subbarao

215

Hydrogen Bond Lifetimes and Energetics for Solute/Solvent Complexes Studied with 2D-IR Vibrational Echo Spectroscopy  

E-Print Network [OSTI]

Hydrogen Bond Lifetimes and Energetics for Solute/Solvent Complexes Studied with 2D-IR Vibrational@stanford.edu Abstract: Weak hydrogen-bonded solute/solvent complexes are studied with ultrafast two the dissociation and formation rates of the hydrogen-bonded complexes. The dissociation rates of the weak hydrogen

Fayer, Michael D.

216

306 IEEE JOURNAL ON SELECTED AREAS IN COMMUNICATIONS, VOL. 25, NO. 2, FEBRUARY 2007 Lifetime Maximization via Cooperative Nodes and  

E-Print Network [OSTI]

locations and energy levels among distributed nodes. First, a lifetime maximization problem via cooperative is with the Department of Electrical and Computer Engineer- ing and the Institute for Systems Research, University of Maryland, College Park, MD 20742 USA (email: kjrliu@eng.umd.edu). Z. Han is with the Department

Liu, K. J. Ray

217

Fluorescence lifetimes and linewidths of dye in photonic crystals Mischa Megens, Judith E. G. J. Wijnhoven, Ad Lagendijk, and Willem L. Vos*  

E-Print Network [OSTI]

Fluorescence lifetimes and linewidths of dye in photonic crystals Mischa Megens, Judith E. G. J fluorescence lifetimes of dye incorporated in high-quality photonic crystals, made of colloidal spheres in a cavity. The effects of homogeneous and inhomogeneous broadening of the emission spectrum of dye inside

Vos, Willem L.

218

JOURNAL DE PHYSIQUE Colloque C7, supplement au n 12, Tome 37, Decembre 1976, page C7-359 CATIONIC HEATS OF TRANSPORT AND VACANCY LIFETIMES  

E-Print Network [OSTI]

HEATS OF TRANSPORT AND VACANCY LIFETIMES IN SINGLE CRYSTALS OF SODIUM CHLORIDE AND POTASSIUM CHLORIDE A on resistance along with corresponding driving forces provides a means for estimation of vacancy lifetimes of this experimental work. Theory. -- In a material at equilibrium, vacancies are produced and annihilated at a rate

Paris-Sud XI, Université de

219

Positron lifetime in vacancy-impurity complexes (*) Section d'Etudes des Solides Irradis, Centre d'Etudes Nuclaires, Boite Postale n 6, 92260 Fontenay aux Roses, France  

E-Print Network [OSTI]

L-547 Positron lifetime in vacancy-impurity complexes (*) C. Corbel Section d'Etudes des Solides positon. Abstract. 2014 We calculate the positron lifetime in vacancy-solute (Na, Mg, Zn) complexes in Al of the same order as for the divacancy. These results indicate that vacancy complexes and vacancy

Boyer, Edmond

220

Comparison of Minority Carrier Lifetime Measurements in Superstrate and Substrate CdTe PV Devices: Preprint  

SciTech Connect (OSTI)

We discuss typical and alternative procedures to analyze time-resolved photoluminescence (TRPL) measurements of minority carrier lifetime (MCL) with the hope of enhancing our understanding of how this technique may be used to better analyze CdTe photovoltaic (PV) device functionality. Historically, TRPL measurements of the fast recombination rate (t1) have provided insightful correlation with broad device functionality. However, we have more recently found that t1 does not correlate as well with smaller changes in device performance, nor does it correlate well with performance differences observed between superstrate and substrate CdTe PV devices. This study presents TRPL data for both superstrate and substrate CdTe devices where both t1 and the slower TRPL decay (t2) are analyzed. The study shows that changes in performance expected from small changes in device processing may correlate better with t2. Numerical modeling further suggests that, for devices that are expected to have similar drift field in the depletion region, effects of changes in bulk MCL and interface recombination should be more pronounced in t2. Although this technique may provide future guidance to improving CdS/CdTe device performance, it is often difficult to extract statistically precise values for t2, and therefore t2 data may demonstrate significant scatter when correlated with performance parameters.

Gessert, T. A.; Dhere, R. G.; Duenow, J. N.; Kuciauskas, D.; Kanevce, A.; Bergeson, J. D.

2011-07-01T23:59:59.000Z

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221

Comparison of Minority Carrier Lifetime Measurements in Superstrate and Substrate CdTe PV Devices  

SciTech Connect (OSTI)

We discuss typical and alternative procedures to analyze time-resolved photoluminescence (TRPL) measurements of minority carrier lifetime (MCL) with the hope of enhancing our understanding of how this technique may be used to better analyze CdTe photovoltaic (PV) device functionality. Historically, TRPL measurements of the fast recombination rate (t{sub 1}) have provided insightful correlation with broad device functionality. However, we have more recently found that t{sub 1} does not correlate as well with smaller changes in device performance, nor does it correlate well with performance differences observed between superstrate and substrate CdTe PV devices. This study presents TRPL data for both superstrate and substrate CdTe devices where both t{sub 1} and the slower TRPL decay (t{sub 2}) are analyzed. The study shows that changes in performance expected from small changes in device processing may correlate better with t{sub 2}. Numerical modeling further suggests that, for devices that are expected to have similar drift field in the depletion region, effects of changes in bulk MCL and interface recombination should be more pronounced in t{sub 2}. Although this technique may provide future guidance to improving CdS/CdTe device performance, it is often difficult to extract statistically precise values for t{sub 2}, and therefore t{sub 2} data may demonstrate significant scatter when correlated with performance parameters.

Gessert, T. A.; Dhere, R. G.; Duenow, J. N.; Kuciauskas, D.; Kanevce, A.; Bergeson, J. D.

2011-01-01T23:59:59.000Z

222

THE LIFETIME OF PROTOPLANETARY DISKS IN A LOW-METALLICITY ENVIRONMENT  

SciTech Connect (OSTI)

The extreme outer Galaxy (EOG), the region with a Galactic radius of more than 18 kpc, is known to have a very low metallicity, about one-tenth that of the solar neighborhood. We obtained the deep near-infrared (NIR) images of two very young (approx0.5 Myr) star-forming clusters that are two of the most distant embedded clusters in the EOG. We find that in both clusters the fraction of stars with NIR excess, which originates from the circumstellar dust disk at radii of <=0.1 AU, is significantly lower than those in the solar neighborhood. Our results suggest that most of the stars forming in the low-metallicity environment experience disk dispersal at an earlier stage (<1 Myr) than those forming in the solar metallicity environment (as much as approx5-6 Myr). Such a rapid disk dispersal may make the formation of planets difficult, and the shorter disk lifetime with a lower metallicity, could contribute to the strong metallicity dependence of the well-known 'planet-metallicity correlation', which states that the probability of a star hosting a planet increases steeply with stellar metallicity. The reason for the rapid disk dispersal could be the increase of the mass accretion rate and/or the effective far-ultraviolet photoevaporation due to the low extinction; however, another unknown mechanism for the EOG environment could be contributing significantly.

Yasui, Chikako; Kobayashi, Naoto [Institute of Astronomy, School of Science, University of Tokyo, 2-21-1 Osawa, Mitaka, Tokyo 181-0015 (Japan); Tokunaga, Alan T. [Institute for Astronomy, University of Hawaii, 2680 Woodlawn Drive, Honolulu, HI 96822 (United States); Saito, Masao [ALMA Project, National Astronomical Observatory of Japan, 2-21-1 Osawa, Mitaka, Tokyo 181-8588 (Japan); Tokoku, Chihiro, E-mail: ck_yasui@ioa.s.u-tokyo.ac.j [Astronomical Institute, Tohoku University, Aramaki, Aoba, Sendai 980-8578 (Japan)

2009-11-01T23:59:59.000Z

223

Lifetime Prediction for Degradation of Solar Mirrors using Step-Stress Accelerated Testing (Presentation)  

SciTech Connect (OSTI)

This research is to illustrate the use of statistical inference techniques in order to quantify the uncertainty surrounding reliability estimates in a step-stress accelerated degradation testing (SSADT) scenario. SSADT can be used when a researcher is faced with a resource-constrained environment, e.g., limits on chamber time or on the number of units to test. We apply the SSADT methodology to a degradation experiment involving concentrated solar power (CSP) mirrors and compare the results to a more traditional multiple accelerated testing paradigm. Specifically, our work includes: (1) designing a durability testing plan for solar mirrors (3M's new improved silvered acrylic "Solar Reflector Film (SFM) 1100") through the ultra-accelerated weathering system (UAWS), (2) defining degradation paths of optical performance based on the SSADT model which is accelerated by high UV-radiant exposure, and (3) developing service lifetime prediction models for solar mirrors using advanced statistical inference. We use the method of least squares to estimate the model parameters and this serves as the basis for the statistical inference in SSADT. Several quantities of interest can be estimated from this procedure, e.g., mean-time-to-failure (MTTF) and warranty time. The methods allow for the estimation of quantities that may be of interest to the domain scientists.

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

2011-09-01T23:59:59.000Z

224

Measurement of the B+_c Meson Lifetime Using B+_c -->J/psi e+nu_e  

SciTech Connect (OSTI)

We present a measurement of the B{sub c}{sup +} meson lifetime in the decay mode B{sub c}{sup +}{yields}J/{psi}e{sup +}{nu}e using the Collider Detector at Fermilab II detector at the Fermilab Tevatron Collider. From a sample of about 360 pb{sup -1} of p{bar p} collisions at {radical}(s)=1.96 TeV, we reconstruct J/{psi}e{sup +} pairs with invariant mass in the kinematically allowed range 4lifetime of 0.463((+0.073)/(-0.065))(stat){+-}0.036(syst) ps.

Abulencia, A.; Budd, S.; Chu, P.H.; Ciobanu, C.I.; Errede, D.; Errede, S.; Gerberich, H.; Grundler, U.; Junk, T.R.; Kraus, J.; Liss,T.M.; Marino, C.; Pitts,K.; Rogers, E.; Taffard, A.; Veramendi, G.; Zhang, X.; Acosta, D.; Cruz, A.; Field, R.

2006-07-06T23:59:59.000Z

225

Measurement of the B(c)+ meson lifetime using B(c)+ ---> J/psi e+ nu(e)  

SciTech Connect (OSTI)

The authors present a measurement of the B{sub c}{sup +} meson lifetime in the semileptonic decay mode B{sub c}{sup +} {yields} J/{psi}e{sup +}{nu}{sub e} using the CDF II detector at the Fermilab Tevatron Collider. From a sample of about 360 pb{sup -1} of p{bar p} collisions at {radical}s = 1.96 TeV, they reconstruct J/{psi}e{sup +} pairs with invariant mass in the kinematically allowed range 4 < M{sub J/{psi}e} < 6 GeV/c{sup 2}. A fit to the decay-length distribution of 238 signal events yields a measured B{sub c}{sup +} meson lifetime of 0.463{sub -0.065}{sup +0.073}(stat) {+-} 0.036(syst) ps.

Abulencia, A.; Acosta, D.; Adelman, Jahred A.; Affolder, T.; Akimoto, T.; Albrow, M.G.; Ambrose, D.; Amerio, S.; Amidei, D.; Anastassov, A.; Anikeev, K.; /Taiwan, Inst.

2006-03-01T23:59:59.000Z

226

Precision measurement of the mass and lifetime of the $?_b^0$ baryon  

E-Print Network [OSTI]

Using a proton-proton collision data sample corresponding to an integrated luminosity of 3 fb$^{-1}$ collected by LHCb at center-of-mass energies of 7 and 8 TeV, about 3800 $\\Xi_b^0\\to\\Xi_c^+\\pi^-$, $\\Xi_c^+\\to pK^-\\pi^+$ signal decays are reconstructed. From this sample, the first measurement of the $\\Xi_b^0$ baryon lifetime is made, relative to that of the $\\Lambda_b^0$ baryon. The mass differences $M(\\Xi_b^0)-M(\\Lambda_b^0)$ and $M(\\Xi_c^+)-M(\\Lambda_c^+)$ are also measured with precision more than four times better than the current world averages. The resulting values are $\\frac{\\tau_{\\Xi_b^0}}{\\tau_{\\Lambda_b^0}} = 1.006\\pm0.018\\pm0.010$, $M(\\Xi_b^0) - M(\\Lambda_b^0) = 172.44\\pm0.39\\pm0.17 MeV/c^2$, $M(\\Xi_c^+) - M(\\Lambda_c^+) = 181.51\\pm0.14\\pm0.10 MeV/c^2$, where the first uncertainty is statistical and the second is systematic. The relative rate of $\\Xi_b^0$ to $\\Lambda_b^0$ baryon production is measured to be $\\frac{f_{\\Xi_b^0}}{f_{\\Lambda_b^0}}\\frac{{\\cal{B}}(\\Xi_b^0\\to\\Xi_c^+\\pi^-)}{{\\cal{B}}(\\Lambda_b^0\\to\\Lambda_c^+\\pi^-)}\\frac{{\\cal{B}}(\\Xi_c^+\\to pK^-\\pi^+)}{{\\cal{B}}(\\Lambda_c^+\\to pK^-\\pi^+)} = (1.88\\pm0.04\\pm0.03)\\times10^{-2}$, where the first factor is the ratio of fragmentation fractions, $b\\to\\Xi_b^0$ relative to $b\\to\\Lambda_b^0$. Relative production rates as functions of transverse momentum and pseudorapidity are also presented.

LHCb collaboration; R. Aaij; B. Adeva; M. Adinolfi; A. Affolder; Z. Ajaltouni; S. Akar; J. Albrecht; F. Alessio; M. Alexander; S. Ali; G. Alkhazov; P. Alvarez Cartelle; A. A. Alves Jr; S. Amato; S. Amerio; Y. Amhis; L. An; L. Anderlini; J. Anderson; R. Andreassen; M. Andreotti; J. E. Andrews; R. B. Appleby; O. Aquines Gutierrez; F. Archilli; A. Artamonov; M. Artuso; E. Aslanides; G. Auriemma; M. Baalouch; S. Bachmann; J. J. Back; A. Badalov; V. Balagura; W. Baldini; R. J. Barlow; C. Barschel; S. Barsuk; W. Barter; V. Batozskaya; V. Battista; A. Bay; L. Beaucourt; J. Beddow; F. Bedeschi; I. Bediaga; S. Belogurov; K. Belous; I. Belyaev; E. Ben-Haim; G. Bencivenni; S. Benson; J. Benton; A. Berezhnoy; R. Bernet; M. -O. Bettler; M. van Beuzekom; A. Bien; S. Bifani; T. Bird; A. Bizzeti; P. M. Bjørnstad; T. Blake; F. Blanc; J. Blouw; S. Blusk; V. Bocci; A. Bondar; N. Bondar; W. Bonivento; S. Borghi; A. Borgia; M. Borsato; T. J. V. Bowcock; E. Bowen; C. Bozzi; T. Brambach; J. van den Brand; J. Bressieux; D. Brett; M. Britsch; T. Britton; J. Brodzicka; N. H. Brook; H. Brown; A. Bursche; G. Busetto; J. Buytaert; S. Cadeddu; R. Calabrese; M. Calvi; M. Calvo Gomez; A. Camboni; P. Campana; D. Campora Perez; A. Carbone; G. Carboni; R. Cardinale; A. Cardini; H. Carranza-Mejia; L. Carson; K. Carvalho Akiba; G. Casse; L. Cassina; L. Castillo Garcia; M. Cattaneo; Ch. Cauet; R. Cenci; M. Charles; Ph. Charpentier; S. Chen; S. -F. Cheung; N. Chiapolini; M. Chrzaszcz; K. Ciba; X. Cid Vidal; G. Ciezarek; P. E. L. Clarke; M. Clemencic; H. V. Cliff; J. Closier; V. Coco; J. Cogan; E. Cogneras; P. Collins; A. Comerma-Montells; A. Contu; A. Cook; M. Coombes; S. Coquereau; G. Corti; M. Corvo; I. Counts; B. Couturier; G. A. Cowan; D. C. Craik; M. Cruz Torres; S. Cunliffe; R. Currie; C. D'Ambrosio; J. Dalseno; P. David; P. N. Y. David; A. Davis; K. De Bruyn; S. De Capua; M. De Cian; J. M. De Miranda; L. De Paula; W. De Silva; P. De Simone; D. Decamp; M. Deckenhoff; L. Del Buono; N. Déléage; D. Derkach; O. Deschamps; F. Dettori; A. Di Canto; H. Dijkstra; S. Donleavy; F. Dordei; M. Dorigo; A. Dosil Suárez; D. Dossett; A. Dovbnya; K. Dreimanis; G. Dujany; F. Dupertuis; P. Durante; R. Dzhelyadin; A. Dziurda; A. Dzyuba; S. Easo; U. Egede; V. Egorychev; S. Eidelman; S. Eisenhardt; U. Eitschberger; R. Ekelhof; L. Eklund; I. El Rifai; Ch. Elsasser; S. Ely; S. Esen; H. -M. Evans; T. Evans; A. Falabella; C. Färber; C. Farinelli; N. Farley; S. Farry; RF Fay; D. Ferguson; V. Fernandez Albor; F. Ferreira Rodrigues; M. Ferro-Luzzi; S. Filippov; M. Fiore; M. Fiorini; M. Firlej; C. Fitzpatrick; T. Fiutowski; M. Fontana; F. Fontanelli; R. Forty; O. Francisco; M. Frank; C. Frei; M. Frosini; J. Fu; E. Furfaro; A. Gallas Torreira; D. Galli; S. Gallorini; S. Gambetta; M. Gandelman; P. Gandini; Y. Gao; J. Garofoli; J. Garra Tico; L. Garrido; C. Gaspar; R. Gauld; L. Gavardi; G. Gavrilov; E. Gersabeck; M. Gersabeck; T. Gershon; Ph. Ghez; A. Gianelle; S. Giani'; V. Gibson; L. Giubega; V. V. Gligorov; C. Göbel; D. Golubkov; A. Golutvin; A. Gomes; H. Gordon; C. Gotti; M. Grabalosa Gándara; R. Graciani Diaz; L. A. Granado Cardoso; E. Graugés; G. Graziani; A. Grecu; E. Greening; S. Gregson; P. Griffith; L. Grillo; O. Grünberg; B. Gui; E. Gushchin; Yu. Guz; T. Gys; C. Hadjivasiliou; G. Haefeli; C. Haen; S. C. Haines; S. Hall; B. Hamilton; T. Hampson; X. Han; S. Hansmann-Menzemer; N. Harnew; S. T. Harnew; J. Harrison; T. Hartmann; J. He; T. Head; V. Heijne; K. Hennessy; P. Henrard; L. Henry; J. A. Hernando Morata; E. van Herwijnen; M. Heß; A. Hicheur; D. Hill; M. Hoballah; C. Hombach; W. Hulsbergen; P. Hunt; N. Hussain; D. Hutchcroft; D. Hynds; M. Idzik; P. Ilten; R. Jacobsson; A. Jaeger; J. Jalocha; E. Jans; P. Jaton; A. Jawahery; F. Jing; M. John; D. Johnson; C. R. Jones; C. Joram; B. Jost; N. Jurik; M. Kaballo; S. Kandybei; W. Kanso; M. Karacson; T. M. Karbach; S. Karodia; M. Kelsey; I. R. Kenyon; T. Ketel; B. Khanji; C. Khurewathanakul; S. Klaver; O. Kochebina; M. Kolpin; I. Komarov; R. F. Koopman; P. Koppenburg; M. Korolev; A. Kozlinskiy; L. Kravchuk; K. Kreplin; M. Kreps; G. Krocker; P. Krokovny; F. Kruse; W. Kucewicz; M. Kucharczyk; V. Kudryavtsev; K. Kurek; T. Kvaratskheliya; V. N. La Thi; D. Lacarrere; G. Lafferty; A. Lai; D. Lambert; R. W. Lambert; E. Lanciotti; G. Lanfranchi; C. Langenbruch; B. Langhans; T. Latham; C. Lazzeroni; R. Le Gac; J. van Leerdam; J. -P. Lees; R. Lefèvre; A. Leflat; J. Lefrançois; S. Leo; O. Leroy; T. Lesiak; B. Leverington; Y. Li; M. Liles; R. Lindner; C. Linn; F. Lionetto; B. Liu; G. Liu; S. Lohn; I. Longstaff; J. H. Lopes; N. Lopez-March; P. Lowdon; H. Lu; D. Lucchesi; H. Luo; A. Lupato; E. Luppi; O. Lupton; F. Machefert; I. V. Machikhiliyan; F. Maciuc; O. Maev; S. Malde; G. Manca; G. Mancinelli; J. Maratas; J. F. Marchand; U. Marconi; C. Marin Benito; P. Marino; R. Märki; J. Marks

2014-07-16T23:59:59.000Z

227

Long lifetime, low intensity light source for use in nighttime viewing of equipment maps and other writings  

DOE Patents [OSTI]

A long-lifetime light source with sufficiently low intensity to be used for reading a map or other writing at nighttime, while not obscuring the user's normal night vision is disclosed. This light source includes a diode electrically connected in series with a small power source and a lens properly positioned to focus at least a portion of the light produced by the diode. 1 fig.

Frank, A.M.; Edwards, W.R.

1983-10-11T23:59:59.000Z

228

Long lifetime, low intensity light source for use in nighttime viewing of equipment maps and other writings  

DOE Patents [OSTI]

A long-lifetime light source is discussed with sufficiently low intensity to be used for reading a map or other writing at nightime, while not obscuring the user's normal night vision. This light source includes a diode electrically connected in series with a small power source and a lens properly positioned to focus at least a portion of the light produced by the diode.

Frank, A.M.; Edwards, W.R.

1982-03-23T23:59:59.000Z

229

The Post-Shock Chemical Lifetimes of Outflow Tracers and a Possible New Mechanism to Produce Water Ice Mantles  

E-Print Network [OSTI]

We have used a coupled time-dependent chemical and dynamical model to investigate the lifetime of the chemical legacy left in the wake of C-type shocks. We concentrate this study on the chemistry of H2O and O2, two molecules which are predicted to have abundances that are significantly affected in shock-heated gas. Two models are presented: (1) a three-stage model of pre-shock, shocked, and post-shock gas; and (2) a Monte-Carlo cloud simulation where we explore the effects of stochastic shock activity on molecular gas over a cloud lifetime. In agreement with previous studies, we find that shock velocities in excess of 10 km s^-1 are required to convert all of the oxygen not locked in CO into H2O before the gas has an opportunity to cool. For pure gas-phase models the lifetime of the high water abundances, or ``H2O legacy'', in the post-shock gas is 4 - 7 x 10^5 years. Through the Monte Carlo cloud simulation we demonstrate that the time-average abundance of H2O is a sensitive function of the frequency of shoc...

Bergin, E A; Neufeld, D A; Bergin, Edwin A.; Melnick, Gary J.; Neufeld, David A.

1998-01-01T23:59:59.000Z

230

EqualChance: Addressing Intra-set Write Variation to Increase Lifetime of Non-volatile Caches  

SciTech Connect (OSTI)

To address the limitations of SRAM such as high-leakage and low-density, researchers have explored use of non-volatile memory (NVM) devices, such as ReRAM (resistive RAM) and STT-RAM (spin transfer torque RAM) for designing on-chip caches. A crucial limitation of NVMs, however, is that their write endurance is low and the large intra-set write variation introduced by existing cache management policies may further exacerbate this problem, thereby reducing the cache lifetime significantly. We present EqualChance, a technique to increase cache lifetime by reducing intra-set write variation. EqualChance works by periodically changing the physical cache-block location of a write-intensive data item within a set to achieve wear-leveling. Simulations using workloads from SPEC CPU2006 suite and HPC (high-performance computing) field show that EqualChance improves the cache lifetime by 4.29X. Also, its implementation overhead is small, and it incurs very small performance and energy loss.

Mittal, Sparsh [ORNL; Vetter, Jeffrey S [ORNL

2014-01-01T23:59:59.000Z

231

Spontaneous Fission Modes and Lifetimes of Superheavy Elements in the Nuclear Density Functional Theory  

SciTech Connect (OSTI)

Background: The reactions with the neutron-rich 48Ca beam and actinide targets resulted in the detection of new superheavy (SH) nuclides with Z=104 118. The unambiguous identification of the new isotopes, however, still poses a problem because their -decay chains terminate by spontaneous fission (SF) before reaching the known region of the nuclear chart. The understanding of the competition between -decay and SF channels in SH nuclei is, therefore, of crucial importance for our ability to map the SH region and to assess its extent.

Purpose: We perform self-consistent calculations of the competing decay modes of even-even SH isotopes with 108 Z 126 and 148 N 188.

Methods: We use the state-of-the-art computational framework based on self-consistent symmetry-unrestricted nuclear density functional theory capable of describing the competition between nuclear attraction and electrostatic repulsion. We apply the SkM* Skyrme energy density functional. The collective mass tensor of the fissioning superfluid nucleus is computed by means of the cranking approximation to the adiabatic time-dependent Hartree-Fock-Bogoliubov (HFB) approach. This paper constitutes a systematic self-consistent study of spontaneous fission in the SH region, carried out at a full HFB level, that simultaneously takes into account both triaxiality and reflection asymmetry.

Results: Breaking axial symmetry and parity turns out to be crucial for a realistic estimate of collective action; it results in lowering SF lifetimes by more than 7 orders of magnitude in some cases. We predict two competing SF modes: reflection symmetric modes and reflection asymmetric modes.

Conclusions: The shortest-lived SH isotopes decay by SF; they are expected to lie in a narrow corridor formed by 280Hs, 284Fl, and 118284Uuo that separates the regions of SH nuclei synthesized in cold-fusion and hot-fusion reactions. The region of long-lived SH nuclei is expected to be centered on 294Ds with a total half-life of 1.5 days. Our survey provides a solid benchmark for the future improvements of self-consistent SF calculations in the region of SH nuclei.

Staszczak, A, [UTK/ORNL/Inst. Physics, Maria Curie-Sklodowska University, Poland; Baran, A. [UTK/ORNL/Inst. Physics, Maria Curie-Sklodowska University, Poland; Nazarewicz, Witold [UTK/ORNL/University of Warsaw

2013-01-01T23:59:59.000Z

232

Quantum efficiency temporal response and lifetime of a GaAs cathode in SRF electron gun  

SciTech Connect (OSTI)

RF electron guns with a strained super lattice GaAs cathode can generate polarized electron beam of higher brightness and lower emittance than do DC guns, due to their higher field gradient at the cathode's surface. In a normal conducting RF gun, the extremely high vaccum required by these cathodes can not be met. We report on an experiment with a superconducting SRF gun, which can maintain a vacuum of nearly 10-12 torr because of cryo-pumping at the temperature of 4.2K. With conventional activation, we obtained a QE of 3% at 532 nm, with lifetime of nearly 3 days in the preparation chamber. We plan to use this cathode in a 1.3 GHz 1/2 cell SRF gun to study its performance. In addition, we studied the multipacting at the location of cathode. A new model based on the Forkker-Planck equation which can estimate the bunch length of the electron beam is discussed in this paper. Future particle accelerators such as eRHIC and ILC require high brightness, high current polarized electrons Recently, using a superlattice crystal, the maximum polarization of 95% was reached. Activation with Cs,O lowers the electron affinity and makes it energetically possible for all the electrons excited in to the conduction band and reach the surface to escape into the vacuum. Presently the polarized electron sources are based on DC gun, such as that at the CEBAF at Jlab. In these devices, the life time of the cathode is extended due to the reduced back bombardment in their UHV conditions. However, the low accelerating gradient of the DC guns lead to poor longitudinal emittance. The higher accelerating gradient of the RF gun generates low emittance beams. Superconducting RF guns combine the excellent vacuum conditions of the DC guns with the higher accelerating gradients of the RF guns and provide potentially a long lived cathode with very low transverse and longitudinal emittance. In our work at BNL, we successfully activated the GaAs. The quantum efficient is 3% at 532 nm and is expected to improve further. In addition, we studied the multipacting at the location of cathode. A new model based on the Forkker-Planck equation which can estimate the bunch length of the electron beam is discussed in this paper.

Wang, E.; Ben-Zvi, I.; Kewisch, J.; Burrill, A.; Rao, T.; Wu, Q.; Holmes, D.

2010-05-23T23:59:59.000Z

233

High Reliability R-10 Windows Using Vacuum Insulating Glass Units  

SciTech Connect (OSTI)

The objective of this effort was for EverSealed Windows (“EverSealed” or “ESW”) to design, assemble, thermally and environmentally test and demonstrate a Vacuum Insulating Glass Unit (“VIGU” or “VIG”) that would enable a whole window to meet or exceed the an R-10 insulating value (U-factor ? 0.1). To produce a VIGU that could withstand any North American environment, ESW believed it needed to design, produce and use a flexible edge seal system. This is because a rigid edge seal, used by all other know VIG producers and developers, limits the size and/or thermal environment of the VIG to where the unit is not practical for typical IG sizes and cannot withstand severe outdoor environments. The rigid-sealed VIG’s use would be limited to mild climates where it would not have a reasonable economic payback when compared to traditional double-pane or triple-pane IGs. ESW’s goals, in addition to achieving a sufficiently high R-value to enable a whole window to achieve R-10, included creating a VIG design that could be produced for a cost equal to or lower than a traditional triple-pane IG (low-e, argon filled). ESW achieved these goals. EverSealed produced, tested and demonstrated a flexible edge-seal VIG that had an R-13 insulating value and the edge-seal system durability to operate reliably for at least 40 years in the harshest climates of North America.

Stark, David

2012-08-16T23:59:59.000Z

234

The Post-Shock Chemical Lifetimes of Outflow Tracers and a Possible New Mechanism to Produce Water Ice Mantles  

E-Print Network [OSTI]

We have used a coupled time-dependent chemical and dynamical model to investigate the lifetime of the chemical legacy left in the wake of C-type shocks. We concentrate this study on the chemistry of H2O and O2, two molecules which are predicted to have abundances that are significantly affected in shock-heated gas. Two models are presented: (1) a three-stage model of pre-shock, shocked, and post-shock gas; and (2) a Monte-Carlo cloud simulation where we explore the effects of stochastic shock activity on molecular gas over a cloud lifetime. In agreement with previous studies, we find that shock velocities in excess of 10 km s^-1 are required to convert all of the oxygen not locked in CO into H2O before the gas has an opportunity to cool. For pure gas-phase models the lifetime of the high water abundances, or ``H2O legacy'', in the post-shock gas is 4 - 7 x 10^5 years. Through the Monte Carlo cloud simulation we demonstrate that the time-average abundance of H2O is a sensitive function of the frequency of shocks. Thus we predict that the abundance of H2O and other known outflow tracers can be used to trace the history of shock activity in molecular gas. For gas-grain models we find that the abundance of water-ice on grain surfaces can be quite large and is comparable to that observed in molecular clouds. This offers a possible alternative method to create water mantles without resorting to grain surface chemistry: gas heating and chemical modification due to a C-type shock and subsequent depletion of the gas-phase species onto grain mantles.

Edwin A. Bergin; Gary J. Melnick; David A. Neufeld

1998-03-30T23:59:59.000Z

235

US/UK second level panel discussions on the health and value of: Ageing and lifetime predictions (u)  

SciTech Connect (OSTI)

Many healthy physics, engineering, and materials exchanges are being accomplished in ageing and lifetime prediction that directly supports US and UK Stockpile Management Programs. Lifetime assessment studies of silicon foams under compression - Joint AWE/LANLlLLNL study of compression set in stress cushions completed. Provides phenomenological prediction out to 50 years. Polymer volatile out-gassing studies - New exchange on the out-gassing of Ethylene Vinyl Acetate (EVA) using isotopic {sup 13}C labeling studies to interrogate mechanistic processes. Infra-red (IR) gas cell analytical capabilities developed by AWE will be used to monitor polymer out-gassing profiles. Pu Strength ageing Experiments and Constitutive Modeling - In recently compared modeling strategies for ageing effects on Pu yield strength at high strain rates, a US/UK consensus was reached on the general principle that the ageing effect is additive and not multiplicative. The fundamental mechanisms for age-strengthening in Pu remains unknown. Pu Surface and Interface Reactions - (1) US/UK secondment resulted in developing a metal-metal oxide model for radiation damaged studies consistent with a Modified Embedded Atom Method (MEAM) potential; and (2) Joint US/UK collaboration to study the role of impurities in hydride initiation. Detonator Ageing (wide range of activities) - (1) Long-term ageing study with field trials at Pantex incorporating materials from LANL, LLNL, SNL and AWE; (2) Characterization of PETN growth to detonation process; (3) Detonator performance modeling; and (4) Performance fault tree analysis. Benefits are a unified approach to lifetime prediction that Includes: materials characterization and the development of ageing models through improved understanding of the relationship between materials properties, ageing properties and detonator performance.

Castro, Richard G [Los Alamos National Laboratory

2011-01-18T23:59:59.000Z

236

A Measurement of the Lifetime of the Lambda_b Baryon with the CDF Detector at the Tevatron Run II  

SciTech Connect (OSTI)

In March 2001 the Tevatron accelerator entered its Run II phase, providing colliding proton and anti-proton beams with an unprecedented center-of-mass energy of 1.96 TeV. The Tevatron is currently the only accelerator to produce {Lambda}{sub b} baryons, which provides a unique opportunity to measure the properties of these particles. This thesis presents a measurement of the mean lifetime of the {Lambda}{sub b} baryon in the semileptonic channel {Lambda}{sub b}{sup 0} {yields} {Lambda}{sub c}{sup +} {mu}{sup -} {bar {nu}}{sub {mu}}. In total 186 pb{sup -1} of data were used for this analysis, collected with the CDF detector between February 2002 and September 2003. To select the long-lived events from b-decays, the secondary vertex trigger was utilized. This significant addition to the trigger for Run II allows, for the first time, the selection of events with tracks displaced from the primary interaction vertex at the second trigger level. After the application of selection cuts this trigger sample contains approximately 991 {Lambda}{sub b} candidates. To extract the mean lifetime of {Lambda}{sub b} baryons from this sample, they transverse decay length of the candidates is fitted with an unbinned maximum likelihood fit under the consideration of the missing neutrino momentum and the bias introduced by the secondary vertex trigger. The mean lifetime of the {Lambda}{sub b} is measured to be {tau} = 1.29 {+-} 0.11(stat.) {+-} 0.07(syst.) ps equivalent to a mean decay length of c{tau} = 387 {+-} 33(stat.) {+-} 21 (syst.) {micro}m.

Unverhau, Tatjana Alberta Hanna; /Glasgow U.

2004-12-01T23:59:59.000Z

237

New Mass and Lifetime Measurements of $^{152}$Sm Projectile Fragments with Time-Resolved Schottky Mass Spectrometry  

E-Print Network [OSTI]

The FRS-ESR facilities at GSI provide unique conditions for precision measurements with stored exotic nuclei over a large range in the chart of nuclides. In the present experiment the exotic nuclei were produced via fragmentation of $^{152}$Sm projectiles in a thick beryllium target at 500-600 MeV/u, separated in-flight with the fragment separator FRS, and injected into the storage-cooler ring ESR. Mass and lifetime measurements have been performed with bare and few-electron ions. The experiment and first results will be presented in this contribution.

Yu. A. Litvinov; F. Bosch; H. Geissel; H. Weick; K. Beckert; P. Beller; D. Boutin; C. Brandau; L. Chen; O. Klepper; R. Knöbel; C. Kozhuharov; J. Kurcewicz; S. A. Litvinov; M. Mazzocco; G. Münzenberg; C. Nociforo; F. Nolden; W. Plaß; C. Scheidenberger; M. Steck; B. Sun; M. Winkler

2005-09-15T23:59:59.000Z

238

High temperature electron spin dynamics in bulk cubic GaN: Nanosecond spin lifetimes far above room-temperature  

SciTech Connect (OSTI)

The electron spin dynamics in n-doped bulk cubic GaN is investigated for very high temperatures from 293?K up to 500?K by time-resolved Kerr-rotation spectroscopy. We find extraordinarily long spin lifetimes exceeding 1?ns at 500?K. The temperature dependence of the spin relaxation time is in qualitative agreement with predictions of Dyakonov-Perel theory, while the absolute experimental times are an order of magnitude shorter than predicted. Possible reasons for this discrepancy are discussed, including the role of phase mixtures of hexagonal and cubic GaN as well as the impact of localized carriers.

Buß, J. H.; Schaefer, A.; Hägele, D.; Rudolph, J. [Arbeitsgruppe Spektroskopie der kondensierten Materie, Ruhr-Universität Bochum, Universitätsstraße 150, D-44780 Bochum (Germany); Schupp, T.; As, D. J. [Department of Physics, University of Paderborn, Warburger Str. 100, D-33095 Paderborn (Germany)

2014-11-03T23:59:59.000Z

239

Value Proposition for High Lifetime (p-type) and Thin Silicon Materials in Solar PV Applications: Preprint  

SciTech Connect (OSTI)

Most silicon PV road maps forecast a continued reduction in wafer thickness, despite rapid declines in the primary incentive for doing so -- polysilicon feedstock price. Another common feature of most silicon-technology forecasts is the quest for ever-higher device performance at the lowest possible costs. The authors present data from device-performance and manufacturing- and system-installation cost models to quantitatively establish the incentives for manufacturers to pursue advanced (thin) wafer and (high efficiency) cell technologies, in an age of reduced feedstock prices. This analysis exhaustively considers the value proposition for high lifetime (p-type) silicon materials across the entire c-Si PV supply chain.

Goodrich, A.; Woodhouse, M.; Hacke, P.

2012-06-01T23:59:59.000Z

240

Recombination lifetime of In{sub x}Ga{sub 1{minus}x}As alloys used in thermophotovoltaic converters  

SciTech Connect (OSTI)

The family of ternary compounds of composition In{sub x}Ga{sub 1{minus}x}As are of considerable interest for thermophotovoltaic energy converters. The recombination lifetimes of the various compositions are critical to the successful application of these materials as efficient converters. Here we will describe experimental results on the composition, In{sub 0.53}Ga{sub 0.47}, that is lattice-matched to InP. We will also describe lifetime results on the compositions In{sub 0.68}Ga{sub 0.32}As, with a bandgap of 0.60 eV to compositions In{sub 0.78}Ga{sub 0.22}As with a bandgap of 0.50 eV. Double heterostructure confinement devices have been made over a range of both {ital n}- and {ital p}-type doping. These results are preliminary, but the goal is to obtain the radiative and Auger recombination coefficients for the alloys in this composition range. {copyright} {ital 1999 American Institute of Physics.}

Ahrenkiel, R.K.; Ellingson, R.; Johnston, S.; Webb, J.; Carapella, J.; Wanlass, M. [National Renewable Energy Laboratory, 1617 Cole Blvd, Golden, Colorado 80401 (United States)

1999-03-01T23:59:59.000Z

Note: This page contains sample records for the topic "lifetime low-e double-pane" 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

Distribution of lifetimes of kinetochore-microtubule attachments: interplay of energy landscape, molecular motors and microtubule (de-)polymerization  

E-Print Network [OSTI]

Before a cell divides into two daughter cells, chromosomes are replicated resulting in two sister chromosomes embracing each other. Each sister chromosome is bound to a separate proteinous structure, called kinetochore (kt), that captures the tip of a filamentous protein, called microtubule (MT). Two oppositely oriented MTs pull the two kts attached to two sister chromosomes thereby pulling the two sisters away from each other. Here we theoretically study an even simpler system, namely an isolated kt coupled to a single MT; this system mimics an {\\it in-vitro} experiment where a single kt-MT attachment is reconstituted using purified extracts from budding yeast. Our models not only account for the experimentally observed "catch-bond-like" behavior of the kt-MT coupling, but also make new predictions on the probability distribution of the lifetimes of the attachments. In principle, our new predictions can be tested by analyzing the data collected in the {\\it in-vitro} experiments provided the experiment is repeated sufficiently large number of times. Our theory provides a deep insight into the effects of (a) size, (b) energetics, and (c) stochastic kinetics of the kt-MT coupling on the distribution of the lifetimes of these attachments.

Ajeet K. Sharma; Blerta Shtylla; Debashish Chowdhury

2014-03-24T23:59:59.000Z

242

Precision lifetime measurement of the cesium $6P_{3/2}$ level using ultrafast pump-probe laser pulses  

E-Print Network [OSTI]

Using the inherent timing stability of pulses from a mode-locked laser, we have precisely measured the cesium $6P_{3/2}$ excited state lifetime. An initial pump pulse excites cesium atoms in two counter-propagating atomic beams to the $6P_{3/2}$ level. A subsequent synchronized probe pulse ionizes atoms which remain in the excited state, and the photo-ions are collected and counted. By selecting pump pulses which vary in time with respect to the probe pulses, we obtain a sampling of the excited state population in time, resulting in a lifetime value of 30.462(46) ns. The measurement uncertainty (0.15%) is larger than our previous report of 0.12% [Phys. Rev. A 84, 010501(R) (2011)] due to the inclusion of additional data and systematic errors. In this follow-up paper we present details of the primary systematic errors encountered in the measurement, which include atomic motion within the intensity profiles of the laser beams, quantum beating in the photo-ion signal, and radiation trapping. Improvements to furt...

Patterson, Brian M; Ehrenreich, Thomas; Gearba, Mirela A; Brooke, George M; Scoville, James; Knize, Randy J

2014-01-01T23:59:59.000Z

243

Modelled Black Carbon Radiative Forcing and Atmospheric Lifetime in AeroCom Phase II Constrained by Aircraft Observations  

SciTech Connect (OSTI)

Black carbon (BC) aerosols absorb solar radiation, and are generally held to exacerbate global warming through exerting a positive radiative forcing1. However, the total contribution of BC to the ongoing changes in global climate is presently under debate2-8. Both anthropogenic BC emissions and the resulting spatial and temporal distribution of BC concentration are highly uncertain2,9. In particular, long range transport and processes affecting BC atmospheric lifetime are poorly understood, leading to large estimated uncertainty in BC concentration at high altitudes and far from emission sources10. These uncertainties limit our ability to quantify both the historical, present and future anthropogenic climate impact of BC. Here we compare vertical profiles of BC concentration from four recent aircraft measurement campaigns with 13 state of the art aerosol models, and show that recent assessments may have overestimated present day BC radiative forcing. Further, an atmospheric lifetime of BC of less than 5 days is shown to be essential for reproducing observations in transport dominated remote regions. Adjusting model results to measurements in remote regions, and at high altitudes, leads to a 25% reduction in the multi-model median direct BC forcing from fossil fuel and biofuel burning over the industrial era.

Samset, B. H.; Myhre, G.; Herber, Andreas; Kondo, Yutaka; Li, Shao-Meng; Moteki, N.; Koike, Makoto; Oshima, N.; Schwarz, Joshua P.; Balkanski, Y.; Bauer, S.; Bellouin, N.; Berntsen, T.; Bian, Huisheng; Chin, M.; Diehl, Thomas; Easter, Richard C.; Ghan, Steven J.; Iversen, T.; Kirkevag, A.; Lamarque, Jean-Francois; Lin, Guang; Liu, Xiaohong; Penner, Joyce E.; Schulz, M.; Seland, O.; Skeie, R. B.; Stier, P.; Takemura, T.; Tsigaridis, Kostas; Zhang, Kai

2014-11-27T23:59:59.000Z

244

Calculation of collective effects and beam lifetimes for the LBL (Lawrence Berkeley Laboratory) 1-2 GeV synchrotron radiation source  

SciTech Connect (OSTI)

In designing a third-generation high brightness synchrotron radiation source, attention must be paid to the various collective effects that can influence beam performance. We report on calculations, performed with the code ZAP, of the bunch length, the transverse emittance and the beam lifetime (from both Touschek and gas scattering) for our 1-2 GeV storage ring. In addition, we estimate the growth times for both longitudinal and transverse coupled bunch instabilities. Bunch lengths of about 20 ps should be obtainable and intrabeam scattering emittance growth is small. For a limiting undulator gap of 1 cm and residual gas pressure of 1n Torr, the beam lifetime is about 5 hours in the single-bunch mode; in the multibunch mode, lifetimes in excess of 6 hours are expected. These results indicate that all performance goals for the facility should be achievable.

Chattopadhyay, S.; Zisman, M.S.

1987-03-01T23:59:59.000Z

245

Use of groundwater lifetime expectancy for the performance assessment of a deep geologic radioactive waste repository:2. Application to a Canadian Shield environment  

E-Print Network [OSTI]

Cornaton et al. [2007] introduced the concept of lifetime expectancy as a performance measure of the safety of subsurface repositories, based upon the travel time for contaminants released at a certain point in the subsurface to reach the biosphere or compliance area. The methodologies are applied to a hypothetical but realistic Canadian Shield crystalline rock environment, which is considered to be one of the most geologically stable areas on Earth. In an approximately 10\\times10\\times1.5 km3 hypothetical study area, up to 1000 major and intermediate fracture zones are generated from surface lineament analyses and subsurface surveys. In the study area, mean and probability density of lifetime expectancy are analyzed with realistic geologic and hydrologic shield settings in order to demonstrate the applicability of the theory and the numerical model for optimally locating a deep subsurface repository for the safe storage of spent nuclear fuel. The results demonstrate that, in general, groundwater lifetime exp...

Park, Y -J; Normani, S D; Sykes, J F; Sudicky, E A

2011-01-01T23:59:59.000Z

246

A system to test the effects of materials on the electron drift lifetime in liquid argon and observations on the effect of water  

SciTech Connect (OSTI)

A materials test system (MTS) has been developed at FNAL to assess the suitability of materials for use in a large liquid argon time projection chamber. During development of the MTS, it was noted that controlling the cryostat pressure with a 'raining' condenser reduced the electron drift lifetime in the liquid argon. The effect of condensing has been investigated using a series of passive materials to filter the condensate. We report the results of these studies and of tests on different candidate materials for detector construction. The inferred reduction of electron drift lifetime by water concentrations in the parts per trillion is of particular interest.

Andrews, R.; Jaskierny, W.; Jostlein, H.; Kendziora, C.; Pordes, S.; Tope, T.; /Fermilab; ,

2009-07-01T23:59:59.000Z

247

Literature review of the lifetime of DOE materials: Aging of plastic bonded explosives and the explosives and polymers contained therein  

SciTech Connect (OSTI)

There are concerns about the lifetime of the nation`s stockpile of high explosives (HEs) and their components. The DOE`s Core Surveillance and Enhanced Surveillance programs specifically target degradation of HE, binders, and plastic-bonded explosives (PBXs) for determination of component lifetimes and handling procedures. The principal goal of this project is to identify the decomposition mechanisms of HEs, plasticizers, and plastic polymer binders resulting from exposure to ionizing radiation, heat, and humidity. The primary HEs of concern are 1,3,5-triamino-2,4,6-trinitrobenzene (TATB) and 1,3,5,7-tetranitro-1,3,5,7-tetraazocyclooctane (HMX). Hexahydro-1,3,5-triazine (RDX) is closely related to these two compounds and is also included in the literature review. Both Kel-F 800 and Estane are polymers of interest. A stabilizer, Irganox 1010, and an energetic plasticizer that is a blend of acetaldehyde 2,2-dinitropropyl acetal, are also of interest, but the focus of this report will be on the explosives and polymers. This presents a literature review that provides background on the synthesis, degradation, and techniques to analyze TATB, HMX, RDX, Kel-F 800, Estane, and the PBXs of these compounds. As there are many factors that can influence degradation of materials, the degradation discussion will be divided into sections based on each factor and how it might affect the degradation mechanism. The factors reviewed that influence the degradation of these materials are exposure to heat, UV- and {gamma}-irradiation, and the chemistry of these compounds. The report presents a recently compiled accounting of the available literature. 80 refs., 7 figs.

Burgess, C.E.; Woodyard, J.D. [West Texas A and M Univ., Canyon, TX (United States); Rainwater, K.A. [Texas Tech Univ., Lubbock, TX (United States); Lightfoot, J.M. [Pantex Plant, Amarillo, TX (United States); Richardson, B.R. [Engineered Carbons, Inc., Borger, TX (United States)

1998-09-01T23:59:59.000Z

248

Measurement of the lifetime of Pb$^{52+}$, Pb$^{53+}$ and Pb$^{54+}$ beams at 4.2 MeV per nucleon subject to electron cooling  

E-Print Network [OSTI]

By measuring the lifetime of stored beams, the recombination of the ions with cooling electrons was investigated. Rates found are larger than expected for radiative electron capture and significantly higher for Pb53+ than for Pb54+ and Pb52+. These results are important for the design of the lead ion injection system for the Large Hadron Collider and for recombination theories.

Baird, S A; Carli, Christian; Chanel, M; Lefèvre, P; Ley, R; MacCaferri, R; Maury, S; Meshkov, I N; Möhl, D; Molinari, G; Motsch, F; Mulder, H; Tranquille, G; Varenne, F

1995-01-01T23:59:59.000Z

249

European Photovoltaic Solar Energy Conference, Valencia, Spain, 6-10 September 2010, 2CV.2.36 DETERMINING THE BULK LIFETIME OF UNPASSIVATED MULTICRYSTALLINE SILICON WAFERS  

E-Print Network [OSTI]

. Brendel1 , R. Falster2 and R. Sinton3 1 Institute for Solar Energy Research Hamelin (ISFH), Am Ohrberg 1 Sinton Instruments, 4720 Walnut Street, Suite 102, Boulder, CO 80301, USA ABSTRACT: The determination potential and benefit of carrier lifetime measure- ments on unprocessed bare wafers, Sinton et al. [3] pre

250

Effective lifetime measurements in the B[0 over s]--> K+K?, B[superscript 0]-->K+?? and B[0 over s]-->?+K? decays  

E-Print Network [OSTI]

Measurements of the effective lifetimes in the B[0 over s]?K+K?, B0?K+??B[superscript 0]?K+?? and B[0 over s]??+K? decays are presented using 1.0 fb?11.0 fb[superscript ?1] of pp collision data collected at a centre-of-mass ...

LHCb collaboration

251

Precision lifetime measurements of a single trapped ion with ultrafast laser pulses D. L. Moehring,* B. B. Blinov, D. W. Gidley, R. N. Kohn, Jr., M. J. Madsen, T. D. Sanderson, R. S. Vallery, and C. Monroe  

E-Print Network [OSTI]

Precision lifetime measurements of a single trapped ion with ultrafast laser pulses D. L. Moehring and ultrafast laser technologies, the ion is excited with picosecond laser pulses from a mode-locked laser excited state lifetime of order nanoseconds by an ultrafast laser pulse duration of order picoseconds

Blinov, Boris

252

Testing and Analysis for Lifetime Prediction of Crystalline Silicon PV Modules Undergoing Degradation by System Voltage Stress: Preprint  

SciTech Connect (OSTI)

Acceleration factors are calculated for crystalline silicon PV modules under system voltage stress by comparing the module power during degradation outdoors to that in accelerated testing at three temperatures and 85% relative humidity. A lognormal analysis is applied to the accelerated lifetime test data considering failure at 80% of the initial module power. Activation energy of 0.73 eV for the rate of failure is determined, and the probability of module failure at an arbitrary temperature is predicted. To obtain statistical data for multiple modules over the course of degradation in-situ of the test chamber, dark I-V measurements are obtained and transformed using superposition, which is found well suited for rapid and quantitative evaluation of potential-induced degradation. It is determined that shunt resistance measurements alone do not represent the extent of power degradation. This is explained with a two-diode model analysis that shows an increasing second diode recombination current and ideality factor as the degradation in module power progresses. Failure modes of the modules stressed outdoors are examined and compared to those stressed in accelerated tests.

Hacke, P.; Smith, R.; Terwiliger, K.; Glick, S.; Jordan, D.; Johnston, S.; Kempe, M.; Kurtz, S.

2012-07-01T23:59:59.000Z

253

Distribution of lifetimes of kinetochore-microtubule attachments:interplay of energy landscape, molecular motors and microtubule (de-)polymerization  

E-Print Network [OSTI]

Before a cell divides into two daughter cells, the chromosomes are replicated resulting in two sister chromosomes embracing each other. Each sister chromosome is bound to a separate proteinous structure, called kinetochore (kt), that captures the tip of a filamentous protein, called microtubule (MT). Two oppositely oriented MTs pull the two kts attached to two sister chromosomes thereby pulling the two sisters away from each other. Here we theoretically study an even simpler system, namely an isolated kt coupled to a single MT; this system mimics an {\\it in-vitro} experiment where a single kt-MT attachment is reconstituted using purified extracts from budding yeast. Our models not only account for the experimentally observed "catch-bond-like" behavior of the kt-MT coupling, but also make new predictions on the probability distribution of the lifetimes of the attachments. In principle, our new predictions can be tested by analyzing the data collected in the {\\it in-vitro} experiments provided the experiment is...

Sharma, Ajeet K; Chowdhury, Debashish

2013-01-01T23:59:59.000Z

254

Measurement of the B+-_c Meson Lifetime Using B+-_c -> J/psi + l+- + X Decays  

SciTech Connect (OSTI)

This thesis describes a measurement of the average proper decay time of the B{sub c}{sup {+-}} mesons, the ground state of bottom and charm quark bound states. The lifetime measurement is carried out in the decay modes B{sub c}{sup {+-}} {yields} J/{psi} + e{sup {+-}} + X and B{sub c}{sup {+-}} {yields} J/{psi} + {mu}{sup {+-}} + X, where the J/{psi} decays as J/{psi} {yields} {mu}{sup +}{mu}{sup -} and the X are unmeasured particles such as {nu}{sub e} or {nu}{sub {mu}}. The data are collect by the CDF II detector which measures the properties of particles created in {radical}s = 1.96 TeV p{bar p} collisions delivered by the Fermilab Tevatron. This measurement uses {approx} 1 fb{sup -1} of integrated luminosity. The measured average proper decay time of B{sub c}{sup {+-}} mesons, {tau} = 0.475{sub -0.049}{sup +0.053}(stat.) {+-} 0.018(syst.) ps, is competitive with the most precise measurements in the world and confirms previous measurements and theoretical predictions.

Hartz, Mark Patrick; /Pittsburgh U.

2008-11-01T23:59:59.000Z

255

Thermo-mechanical and neutron lifetime modeling and design of Be pebbles in the neutron multiplier for the LIFE engine  

SciTech Connect (OSTI)

Concept designs for the laser-initiated fusion/fission engine (LIFE) include a neutron multiplication blanket containing Be pebbles flowing in a molten salt coolant. These pebbles must be designed to withstand the extreme irradiation and temperature conditions in the blanket to enable a safe and cost-effective operation of LIFE. In this work, we develop design criteria for spherical Be pebbles on the basis of their thermomechanical behavior under continued neutron exposure. We consider the effects of high fluence/fast flux on the elastic, thermal and mechanical properties of nuclear-grade Be. Our results suggest a maximum pebble diameter of 30 mm to avoid tensile failure, coated with an anti-corrosive, high-strength metallic shell to avoid failure by pebble contact. Moreover, we find that the operation temperature must always be kept above 450 C to enable creep to relax the stresses induced by swelling, which we estimate to be at least 16 months if uncoated and up to six years when coated. We identify the sources of uncertainty on the properties used and discuss the advantages of new intermetallic beryllides and their use in LIFE's neutron multiplier. To establish Be-pebble lifetimes with improved confidence, reliable experiments to measure irradiation creep must be performed.

DeMange, P; Marian, J; de Caro, M S; Caro, A

2009-03-16T23:59:59.000Z

256

Measured Lifetimes of Selected Metastable Levels of Arq+ Ions (Q=2, 3, 9, and 10) Stored in an Electrostatic Ion-Trap  

E-Print Network [OSTI]

in square brack- ets denote powers of 10. Ar + 3s 3p transition CK [28] Transition rates (s ') BH [32] H [33] MZ [34] 4S3/2 2P I /2 2 2D3/2 P1/2 2 2Ds/2- Pin Ml E2 M1 E2 M1 E2 0.972 1.19[?4] 0.488 0.190 0.122 0.954 3.346[ ?4] 0.462 0... in square brack- ets denote powers of 10. Ar + 2s 2p' transition Transition rates (s ') E, C-MZ [35] C, KD [36] KS [28] 2 2P3/2- Pi/2 Lifetime Pl/2 (ms) M1 M1+E2 E2 1.05[2] 9.52 1.044(2) 2.062[ ?3] 9.58 1.06[2] 9 43 Expt. lifetime 8...

Yang, L. S.; Church, David A.; Tu, S. G.; Jin, J.

1994-01-01T23:59:59.000Z

257

Mass and lifetime measurements of bottom and charm baryons in $p\\bar p$ collisions at $\\sqrt{s}= 1.96 TeV  

E-Print Network [OSTI]

We report on mass and lifetime measurements of several ground state charmed and bottom baryons, using a data sample corresponding to 9.6 $\\textrm{fb}^{-1}$ from $p\\bar p$ collisions at $\\sqrt{s}=1.96$ TeV, and recorded with the Collider Detector at Fermilab. Baryon candidates are reconstructed from data collected with an online event selection designed for the collection of long-lifetime heavy-flavor decay products and a second event selection designed to collect $J/\\psi \\rightarrow \\mu^+ \\, \\mu^-$ candidates. First evidence for the process $\\Omega_b^- \\rightarrow \\Omega_c^0 \\, \\pi^-$ is presented with a significance of $3.3\\sigma$. We measure the following baryon masses: \\begin{eqnarray} M(\\Xi_c^{0}) = 2470.85\\pm0.24(stat)\\pm0.55(syst) \\, MeV/c^2, \

CDF Collaboration; T. Aaltonen; S. Amerio; D. Amidei; A. Anastassov; A. Annovi; J. Antos; G. Apollinari; J. A. Appel; T. Arisawa; A. Artikov; J. Asaadi; W. Ashmanskas; B. Auerbach; A. Aurisano; F. Azfar; W. Badgett; T. Bae; A. Barbaro-Galtieri; V. E. Barnes; B. A. Barnett; P. Barria; P. Bartos; M. Bauce; F. Bedeschi; S. Behari; G. Bellettini; J. Bellinger; D. Benjamin; A. Beretvas; A. Bhatti; K. R. Bland; B. Blumenfeld; A. Bocci; A. Bodek; D. Bortoletto; J. Boudreau; A. Boveia; L. Brigliadori; C. Bromberg; E. Brucken; J. Budagov; H. S. Budd; K. Burkett; G. Busetto; P. Bussey; P. Butti; A. Buzatu; A. Calamba; S. Camarda; M. Campanelli; F. Canelli; B. Carls; D. Carlsmith; R. Carosi; S. Carrillo; B. Casal; M. Casarsa; A. Castro; P. Catastini; D. Cauz; V. Cavaliere; M. Cavalli-Sforza; A. Cerri; L. Cerrito; Y. C. Chen; M. Chertok; G. Chiarelli; G. Chlachidze; K. Cho; D. Chokheli; A. Clark; C. Clarke; M. E. Convery; J. Conway; M. Corbo; M. Cordelli; C. A. Cox; D. J. Cox; M. Cremonesi; D. Cruz; J. Cuevas; R. Culbertson; N. d'Ascenzo; M. Datta; P. de Barbaro; L. Demortier; L. Marchese; M. Deninno; F. Devoto; M. D'Errico; A. Di Canto; B. Di Ruzza; J. R. Dittmann; M. D'Onofrio; S. Donati; M. Dorigo; A. Driutti; K. Ebina; R. Edgar; A. Elagin; R. Erbacher; S. Errede; B. Esham; S. Farrington; J. P. Fernández Ramos; R. Field; G. Flanagan; R. Forrest; M. Franklin; J. C. Freeman; H. Frisch; Y. Funakoshi; C. Galloni; A. F. Garfinkel; P. Garosi; H. Gerberich; E. Gerchtein; S. Giagu; V. Giakoumopoulou; K. Gibson; C. M. Ginsburg; N. Giokaris; P. Giromini; G. Giurgiu; V. Glagolev; D. Glenzinski; M. Gold; D. Goldin; A. Golossanov; G. Gomez; G. Gomez-Ceballos; M. Goncharov; O. González López; I. Gorelov; A. T. Goshaw; K. Goulianos; E. Gramellini; S. Grinstein; C. Grosso-Pilcher; R. C. Group; J. Guimaraes da Costa; S. R. Hahn; J. Y. Han; F. Happacher; K. Hara; M. Hare; R. F. Harr; T. Harrington-Taber; K. Hatakeyama; C. Hays; J. Heinrich; M. Herndon; A. Hocker; Z. Hong; W. Hopkins; S. Hou; R. E. Hughes; U. Husemann; M. Hussein; J. Huston; G. Introzzi; M. Iori; A. Ivanov; E. James; D. Jang; B. Jayatilaka; E. J. Jeon; S. Jindariani; M. Jones; K. K. Joo; S. Y. Jun; T. R. Junk; M. Kambeitz; T. Kamon; P. E. Karchin; A. Kasmi; Y. Kato; W. Ketchum; J. Keung; B. Kilminster; D. H. Kim; H. S. Kim; J. E. Kim; M. J. Kim; S. B. Kim; S. H. Kim; Y. K. Kim; Y. J. Kim; N. Kimura; M. Kirby; K. Knoepfel; K. Kondo; D. J. Kong; J. Konigsberg; A. V. Kotwal; M. Kreps; J. Kroll; M. Kruse; T. Kuhr; M. Kurata; A. T. Laasanen; S. Lammel; M. Lancaster; K. Lannon; G. Latino; H. S. Lee; J. S. Lee; S. Leo; S. Leone; J. D. Lewis; A. Limosani; E. Lipeles; A. Lister; H. Liu; Q. Liu; T. Liu; S. Lockwitz; A. Loginov; A. Lucà; D. Lucchesi; J. Lueck; P. Lujan; P. Lukens; G. Lungu; J. Lys; R. Lysak; R. Madrak; P. Maestro; S. Malik; G. Manca; A. Manousakis-Katsikakis; F. Margaroli; P. Marino; M. Martínez; K. Matera; M. E. Mattson; A. Mazzacane; P. Mazzanti; R. McNulty; A. Mehta; P. Mehtala; C. Mesropian; T. Miao; D. Mietlicki; A. Mitra; H. Miyake; S. Moed; N. Moggi; C. S. Moon; R. Moore; M. J. Morello; A. Mukherjee; Th. Muller; P. Murat; M. Mussini; J. Nachtman; Y. Nagai; J. Naganoma; I. Nakano; A. Napier; J. Nett; C. Neu; T. Nigmanov; L. Nodulman; S. Y. Noh; O. Norniella; L. Oakes; S. H. Oh; Y. D. Oh; I. Oksuzian; T. Okusawa; R. Orava; L. Ortolan; C. Pagliarone; E. Palencia; P. Palni; V. Papadimitriou; W. Parker; G. Pauletta; M. Paulini; C. Paus; T. J. Phillips; G. Piacentino; E. Pianori; J. Pilot; K. Pitts; C. Plager; L. Pondrom; S. Poprocki; K. Potamianos; F. Prokoshin; A. Pranko; F. Ptohos; G. Punzi; N. Ranjan; I. Redondo Fernández; P. Renton; M. Rescigno; F. Rimondi; L. Ristori; A. Robson; T. Rodriguez; S. Rolli; M. Ronzani; R. Roser; J. L. Rosner; F. Ruffini; A. Ruiz; J. Russ; V. Rusu; W. K. Sakumoto; Y. Sakurai; L. Santi; K. Sato; V. Saveliev; A. Savoy-Navarro; P. Schlabach; E. E. Schmidt; T. Schwarz; L. Scodellaro; F. Scuri; S. Seidel; Y. Seiya; A. Semenov; F. Sforza; S. Z. Shalhout; T. Shears; P. F. Shepard; M. Shimojima; M. Shochet; I. Shreyber-Tecker; A. Simonenko; K. Sliwa; J. R. Smith; F. D. Snider; V. Sorin; H. Song; M. Stancari; R. St. Denis; D. Stentz; J. Strologas; Y. Sudo; A. Sukhanov; I. Suslov; K. Takemasa; Y. Takeuchi; J. Tang; M. Tecchio; P. K. Teng; J. Thom; E. Thomson; V. Thukral; D. Toback; S. Tokar; K. Tollefson; T. Tomura; D. Tonelli; S. Torre; D. Torretta; P. Totaro; M. Trovato; F. Ukegawa; S. Uozumi; F. Vázquez; G. Velev; C. Vellidis; C. Vernieri; M. Vidal; R. Vilar; J. Vizán; M. Vogel; G. Volpi; P. Wagner; R. Wallny; S. M. Wang; D. Waters; W. C. Wester III; D. Whiteson; A. B. Wicklund; S. Wilbur; H. H. Williams; J. S. Wilson; P. Wilson; B. L. Winer; P. Wittich; S. Wolbers; H. Wolfe; T. Wright; X. Wu; Z. Wu; K. Yamamoto; D. Yamato; T. Yang; U. K. Yang; Y. C. Yang; W. -M. Yao; G. P. Yeh; K. Yi; J. Yoh; K. Yorita; T. Yoshida; G. B. Yu

2014-03-31T23:59:59.000Z

258

A Detailed Analysis and Monte Carlo Simulation of the Neutron Lifetime Experiment S. Arzumanov et al., Phys. Lett. B 483 (2000) 15  

E-Print Network [OSTI]

We performed a detailed analysis and the Monte Carlo simulation of the neutron lifetime experiment [S. Arzumanov et al., Phys. Lett. B 483 (2000) 15] because of the strong disagreement by 5.6 standard deviations between the results of this experiment and our experiment [A. Serebrov et al., Phys. Lett. B 605 (2005) 72]. We found a few effects which were not taken into account in the experiment [S. Arzumanov et al., Phys. Lett. B 483 (2000) 15]. The possible correction is -5.5 s with uncertainty of 2.4 s which comes from initial data knowledge. We assume that after taking into account this correction the result of work [S. Arzumanov et al., Phys. Lett. B 483 (2000) 15] for neutron lifetime 885.4 +/- 0.9stat +/- 0.4syst s could be corrected to 879.9 +/- 0.9stat +/- 2.4syst s.

A. K. Fomin; A. P. Serebrov

2010-05-17T23:59:59.000Z

259

Reliability of steam-turbine rotors. Task 1. Lifetime prediction analysis system. Final report. [Using STRAP and SAFER computer codes and boresonic data  

SciTech Connect (OSTI)

Task 1 of RP 502, Reliability of Steam Turbine Rotors, resulted in the development of a computerized lifetime prediction analysis system (STRAP) for the automatic evaluation of rotor integrity based upon the results of a boresonic examination of near-bore defects. Concurrently an advanced boresonic examination system (TREES), designed to acquire data automatically for lifetime analysis, was developed and delivered to the maintenance shop of a major utility. This system and a semi-automated, state-of-the-art system (BUCS) were evaluated on two retired rotors as part of the Task 2 effort. A modified nonproprietary version of STRAP, called SAFER, is now available for rotor lifetime prediction analysis. STRAP and SAFER share a common fracture analysis postprocessor for rapid evaluation of either conventional boresonic amplitude data or TREES cell data. The final version of this postprocessor contains general stress intensity correlations for elliptical cracks in a radial stress gradient and provision for elastic-plastic instability of the ligament between an imbedded crack and the bore surface. Both linear elastic and ligament rupture models were developed for rapid analysis of linkup within three-dimensional clusters of defects. Bore stress-rupture criteria are included, but a creep-fatigue crack growth data base is not available. Physical and mechanical properties of air-melt 1CrMoV forgings are built into the program; however, only bounding values of fracture toughness versus temperature are available. Owing to the lack of data regarding the probability of flaw detection for the boresonic systems and of quantitative verification of the flaw linkup analysis, automatic evlauation of boresonic results is not recommended, and the lifetime prediction system is currently restricted to conservative, deterministic analysis of specified flaw geometries.

Nair, P.K.; Pennick, H.G.; Peters, J.E.; Wells, C.H.

1982-12-01T23:59:59.000Z

260

Development of an In-Line Minority-Carrier Lifetime Monitoring Tool for Process Control during Fabrication of Crystalline Silicon Solar Cells: Annual Subcontract Report, June 2003 (Revised)  

SciTech Connect (OSTI)

Under the PV Manufacturing R&D subcontract''Development of an In-Line, Minority-Carrier Lifetime Monitoring Tool for Process Control during Fabrication of Crystalline Silicon Solar Cells'', Sinton Consulting developed prototypes for several new instruments for use in the manufacture of silicon solar cells. These instruments are based on two families of R&D instruments that were previously available, an illumination vs. open-circuit-voltage technique and the quasi-steady state RF photoconductance technique for measuring minority-carrier lifetime. Compared to the previous instruments, the new prototypes are about 20 times faster per measurement, and have automated data analysis that does not require user intervention even when confronted by challenging cases. For example, un-passivated multi-crystalline wafers with large variations in lifetime and trapping behavior can be measured sequentially without error. Five instruments have been prototyped in this project to date, including a block tester for evaluating cast or HEM silicon blocks, a CZ ingot tester, an FZ boule tester for use with long-lifetime silicon, and an in-line sample head for measuring wafers. The CZ ingot tester and the FZ boule tester are already being used within industry and there is interest in the other prototypes. For each instrument, substantial R&D work was required in developing the device physics and analysis as well as for the hardware. This work has been documented in a series of application notes and conference publications, and will result in significant improvements for both the R&D and the industrial types of instruments.

Sinton, R. A.

2004-04-01T23:59:59.000Z

Note: This page contains sample records for the topic "lifetime low-e double-pane" from the National Library of EnergyBeta (NLEBeta).
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261

Measurement of branching ratio and B0s lifetime in the decay B0s ? J/? f0(980) at CDF  

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

We present a study of Bs0 decays to the CP-odd final state J/? f0(980) with J/? ? µ+µ- and f0(980) ? ?+?-. Using pp? collision data with an integrated luminosity of 3.8 fb-1 collected by the CDF II detector at the Tevatron we measure a Bs0 lifetime of ?(B0s ? J/? f0(980)) = 1.70-0.11+0.12(stat) ± 0.03(syst) ps. This is the first measurement of the Bs0} lifetime in a decay to a CP eigenstate and corresponds in the standard model to the lifetime of the heavy Bs0 eigenstate. We also measure the product of branching fractions of B0s ? J/? f0(980) and f0(980) ? ?+?- relative to the product of branching fractions of B0s ? J/?? and ??K+K- to be Rf0/? = 0.257 ± 0.020(stat) ± 0.014(syst), which is the most precise determination of this quantity to date.

Aaltonen, T [Helsinki Inst. of Phys.; Gonzalez, B Alvarez [Oviedo U.; Cantabria Inst. of Phys.; Amerio, S [INFN, Padua; Amidei, D [Michigan U.; Anastassov, A [Northwestern U.; Annovi, A [Frascati; Antos, J [Comenius U.; Apollinari, G [Fermilab; Appel, J A [Fermilab; Apresyan, A [Purdue U.; Arisawa, T [Waseda U.; Dubna, JINR

2011-09-30T23:59:59.000Z

262

SOLERAS - Solar Controlled Environment Agriculture Project. Final report, Volume 1. Project summary  

SciTech Connect (OSTI)

A summary of the Solar Controlled Environment Agriculture Project is presented. The design of the greenhouses include transparent double pane glass roof with channels for fluid between the panes, inner pane tinted and double pane extruded acrylic aluminized mylar shade and diffuser. Solar energy technologies provide power for water desalination, for pumping irrigation water, and for cooling and heating the controlled environment space so that crops can grow in arid lands. The project is a joint effort between the United States and Saudi Arabia. (BCS)

Not Available

1985-12-30T23:59:59.000Z

263

Olkiluoto 1 and 2 - Plant efficiency improvement and lifetime extension-project (PELE) implemented during outages 2010 and 2011  

SciTech Connect (OSTI)

Teollisuuden Voima Oyj (TVO) is a non-listed public company founded in 1969 to produce electricity for its stakeholders. TVO is the operator of the Olkiluoto nuclear power plant. TVO follows the principle of continuous improvement in the operation and maintenance of the Olkiluoto plant units. The PELE project (Plant Efficiency Improvement and Lifetime Extension), mainly completed during the annual outages in 2010 and 2011, and forms one part of the systematic development of Olkiluoto units. TVO maintains a long-term development program that aims at systematically modernizing the plant unit systems and equipment based on the latest technology. According to the program, the Olkiluoto 1 and Olkiluoto 2 plant units are constantly renovated with the intention of keeping them safe and reliable, The aim of the modernization projects is to improve the safety, reliability, and performance of the plant units. PELE project at Olkiluoto 1 was done in 2010 and at Olkiluoto 2 in 2011. The outage length of Olkiluoto 1 was 26 d 12 h 4 min and Olkiluoto 2 outage length was 28 d 23 h 46 min. (Normal service-outage is about 14 days including refueling and refueling-outage length is about seven days. See figure 1) The PELE project consisted of several single projects collected into one for coordinated project management. Some of the main projects were as follows: - Low pressure turbines: rotor, stator vane, casing and turbine instrumentation replacement. - Replacement of Condenser Cooling Water (later called seawater pumps) pumps - Replacement of inner isolation valves on the main steam lines. - Generator and the generator cooling system replacement. - Low voltage switchgear replacement. This project will continue during future outages. PELE was a success. 100 TVO employees and 1500 subcontractor employees participated in the project. The execution of the PELE projects went extremely well during the outages. The replacement of the low pressure turbines and seawater pumps improved the efficiency of the plant units, and a power increase of nearly 20 MW was achieved at both plant units. PELE wonderfully manifests one of the strategic goals of our company; developing the competence of our in-house personnel by working in projects. (authors)

Kosonen, M.; Hakola, M. [Teollisuuden Voima Oyj, F- 27160 Eurajoki (Finland)

2012-07-01T23:59:59.000Z

264

Lifetime measurements by the Doppler-shift attenuation method in the {sup 115}Sn({alpha},n{gamma}){sup 118}Te reaction  

SciTech Connect (OSTI)

{gamma} rays were measured at several angles in both singles and coincidence modes in the {sup 115}Sn({alpha},n{gamma}){sup 118}Te reaction at 15 MeV on a thick target. Multipolarities and mixing ratios were determined from the {gamma}-ray angular distribution analysis. Lifetimes of 11 low- and medium-spin excited states in {sup 118}Te were determined from a Monte Carlo Doppler-shift attenuation method analysis of the Doppler broadened line shapes of {gamma} rays deexciting the levels. The results are discussed in comparison with the predictions of the interacting boson model.

Mihai, C. [Horia Hulubei National Institute of Physics and Nuclear Engineering, RO-077125 Bucharest (Romania); Faculty of Physics, University of Bucharest, Bucharest (Romania); Pasternak, A. A. [Cyclotron Laboratory, A.F. Ioffe Physical Technical Institute, 194021 St. Petersburg (Russian Federation); Pascu, S.; Filipescu, D.; Ivascu, M.; Bucurescu, D.; Cata-Danil, I.; Deleanu, D.; Ghita, D. G.; Glodariu, T.; Marginean, N.; Marginean, R.; Negret, A.; Sava, T.; Stroe, L.; Suliman, G.; Zamfir, N. V. [Horia Hulubei National Institute of Physics and Nuclear Engineering, RO-077125 Bucharest (Romania); Cata-Danil, G. [Horia Hulubei National Institute of Physics and Nuclear Engineering, RO-077125 Bucharest (Romania); Physics Department, University 'Politehnica' of Bucharest, Bucharest (Romania)

2011-05-15T23:59:59.000Z

265

Measurement of the t anti-t production cross-section at s**(1/2) = 1.96-TeV using lifetime tagging  

SciTech Connect (OSTI)

A measurement of the t{bar t} production cross section in the lepton+jets channels with the D0 detector at {radical}s = 1.96 TeV using the lifetime-tagging techniques is presented. The t{bar t} cross section is estimated from the combination of the e+jets and {mu}+jets channels. The obtained result {sigma}{sub t{bar t}} = 7.47{sub -1.14}{sup +1.22}(stat){sub -1.03}{sup +1.65}(syst) {+-} 0.49(lumi) pb is consistent with the Standard Model expectation.

Khanov, Alexander; /Rochester U.; ,

2004-07-01T23:59:59.000Z

266

MiniBooNE LowE Data Release  

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 Conchas recovery challenge fundProject8 -3EutecticMinding the GapThe Neutrino

267

Measurement of the ?_{b}^{0} lifetime in the exclusive decay ?_{b}^{0}?J/??^{0} in pp[over ¯] collisions at sqrt[s]=1.96??TeV  

SciTech Connect (OSTI)

We measure the {Lambda}{sub b}{sup 0} lifetime in the fully reconstructed decay {Lambda}{sub b}{sup 0} {yields} J/{psi} {Lambda}{sup 0} using 10.4 fb{sup -1} of p{bar p} collisions collected with the D0 detector at {radical}s = 1.96 TeV. The lifetime of the topologically similar decay channel B{sup 0} {yields} J/{psi} K{sub S}{sup 0} is also measured. We obtain {tau} ({Lambda}{sub b}{sup 0}) = 1.303 {+-} 0.075 (stat.) {+-} 0.035 (syst.) ps and {tau} (B{sup 0}) = 1.508 {+-} 0.025 (stat.) {+-} 0.043 (syst.) ps. Using these measurements, we determine the lifetime ratio of {tau} ({Lambda}{sub b}{sup 0})/{tau} (B{sup 0}) = 0.864 {+-} 0.052 (stat.) {+-} 0.033 (syst.).

Abazov, Victor Mukhamedovich; et al.

2012-06-01T23:59:59.000Z

268

Significance of M2 and E3 transitions for $4p^54d^{N+1}$ and $4p^64d^{N-1}4f$ configuration metastable level lifetimes  

E-Print Network [OSTI]

Magnetic quadrupole and electric octupole transitions from the configurations $4p^54d^{N+1}$ and $4p^64d^{N-1}4f$ were calculated along with magnetic dipole, electric dipole and electric quadrupole radiative transitions in quasirelativistic Hartree-Fock approximation. Their significance in determining the metastable level radiative lifetimes was investigated along several isoelectronic sequences for the ions from $Z=50$ to $Z=92$. Strontium-like ions, zirconium-like ions, molybdenum-like ions and rhodium-like ions were studied comprehensively. Remaining isoelectronic sequences with the ground configuration $4d^{N}$ ($N=1,3,5,7,8,10$) were also reviewed albeit in less detail. A systematic trends of determined total radiative lifetimes were studied. The importance of magnetic quadrupole and electric octupole transitions from metastable levels of ions from these isoelectronic sequences was investigated and discussed. Inclusion of such transitions of higher multipole order can change theoretical radiative lifetim...

Karpuškien?, R; Kisielius, R

2015-01-01T23:59:59.000Z

269

Measurement of the Bs0 Lifetime in Fully and Partially Reconstructed Bs0 -> Ds- (phi pi-)X Decays in pp? Collisions at ?s = 1.96 TeV  

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

The authors present a measurement of the Bs0 lifetime in fully and partially reconstructed Bs0 = Ds0(??-)X decays in 1.3 fb-1 collected in pp? collisions at ?s = 1.96 Tev by the CDF II detector at the Fermilab Tevatron. They measure ?(Bs0) = 1.518 ± 0.041 (stat.) ± 0.027 (syst.) ps. The ratio of this result and the world average B0 lifetime yields ?(Bs0)/?(B0) = 0.99 ± 0.03, which is in agreement with recent theoretical predictions.

Aaltonen, T.; Gonzalez, B Alvarez; Amerio, S.; Amidei, D.; Anastassov, A.; Annovi, A.; Antos, J.; Apollinari, G.; Appel, J.A.; Apresyan, A.; Arisawa, T.

2011-12-29T23:59:59.000Z

270

Measurement of the [bar over B][0 over s] ? D[? over s]D[+ over s] and [bar over B][0 over s] ? D[superscript ?]D[+ over s] Effective Lifetimes  

E-Print Network [OSTI]

The first measurement of the effective lifetime of the [bar over B][0 over s] meson in the decay[bar over B][0 over s] ? D[? over s]D[+ over s] is reported using a proton-proton collision data set, corresponding to an ...

Ilten, Philip James

271

Effect of friction stir weld defects on fatigue lifetime of an Al-Cu-Li alloy T. Le Jolu, T.F. Morgeneyer, A.F. Gourgues-Lorenzon  

E-Print Network [OSTI]

1 Effect of friction stir weld defects on fatigue lifetime of an Al-Cu-Li alloy (AA-2198) T. Le of friction stir welds of a 2198 Al-alloy in T851 condition has been assessed experimentally by investigating concerning crack initiation mechanisms. KEYWORDS Friction Stir Welding, Joint Line Remnant, Al-Cu-Li, S

Paris-Sud XI, Université de

272

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

SciTech Connect (OSTI)

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

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

2014-12-15T23:59:59.000Z

273

Measurement of the B{sub c}{sup +} Meson Lifetime Using the Decay Mode B{sub c}{sup +}{yields}J/{psi}e{sup +}{nu}{sub e}  

SciTech Connect (OSTI)

We present a measurement of the B{sub c}{sup +} meson lifetime in the decay mode B{sub c}{sup +}{yields}J/{psi}e{sup +}{nu}{sub e} using the Collider Detector at Fermilab II detector at the Fermilab Tevatron Collider. From a sample of about 360 pb{sup -1} of pp collisions at {radical}(s)=1.96 TeV, we reconstruct J/{psi}e{sup +} pairs with invariant mass in the kinematically allowed range 4lifetime of 0.463(+0.073/-0.065)(stat){+-}0.036(syst) ps.

Abulencia, A.; Budd, S.; Chu, P.H.; Ciobanu, C.I.; Errede, D.; Errede, S.; Gerberich, H.; Grundler, U.; Junk, T.R.; Kraus, J.; Liss, T.M.; Marino, C.; Pitts, K.; Rogers, E.; Taffard, A.; Veramendi, G.; Zhang, X. [University of Illinois, Urbana, Illinois 61801 (United States); Acosta, D.; Cruz, A.; Field, R. [University of Florida, Gainesville, Florida 32611 (United States)] (and others)

2006-07-07T23:59:59.000Z

274

PEVELOPMENT OF FLUORESCENCE LIFETIME DIAGNOSTIC  

Office of Scientific and Technical Information (OSTI)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary)morphinan antagonist Journal Article: CrystalFG36-08GO18149Speeding access toSpeedingSpeeding accessaP L 'A)4

275

Measurement of the B0-bar Lifetime and the B0B0-bar Oscillation Frequency Using Partially Reconstructed B0-bar to D*+ l- nu-bar Decays  

SciTech Connect (OSTI)

The authors present a simultaneous measurement of the {bar B}{sup 0} lifetime {tau}{sub B{sup 0}} and B{sup 0}{bar B}{sup 0} oscillation frequency {Delta}m{sub d}. We use a sample of about 50,000 partially reconstructed {bar B}{sup 0} {yields} D*{sup +}{ell}{sup -}{bar {nu}}{sub {ell}} decays identified with the BABAR detector at the PEP-II e{sup +}e{sup -} storage ring at SLAC. The flavor of the other B meson in the event is determined from the charge of another high-momentum lepton.

Aubert, B.; Barate, R.; Boutigny, D.; Couderc, F.; Karyotakis, Y.; Lees, J.P.; Poireau, V.; Tisserand, V.; Zghiche, A.; /Annecy, LAPP; Grauges, E.; /Barcelona, IFAE; Palano, A.; Pappagallo, M.; Pompili, A.; /Bari U. /INFN, Bari; Chen, J.C.; Qi, N.D.; Rong, G.; Wang, P.; Zhu, Y.S.; /Beijing, Inst. High Energy Phys.; Eigen, G.; Ofte, I.; Stugu, B. /Bergen U. /LBL, Berkeley /UC, Berkeley /Birmingham U. /Ruhr U., Bochum /Bristol U. /British Columbia U. /Brunel U. /Novosibirsk, IYF /UC, Irvine /UCLA /UC, Riverside /UC, San

2005-07-27T23:59:59.000Z

276

Development of an In-line Minority-Carrier Lifetime Monitoring Tool for Process Control during Fabrication of Crystalline Silicon Solar Cells: Final Technical Report, 2 August 2002-15 November 2004  

SciTech Connect (OSTI)

The objective of this subcontract over its two-phase, two-year duration was to design and develop improvements to the existing Sinton Consulting R&D minority-carrier lifetime testers. The improvements enable the possibilities for performing various in-line diagnostics on crystalline silicon wafers and cells for solar cell manufacturing lines. This facilitates manufacturing optimization and improved process control. The scope of work for Phase I was to prototype industrial applications for the improved instruments. A small-sample-head version of the instrument was designed and developed in this effort. This new instrument was complemented by detailed application notes detailing the productive use of minority-carrier lifetime measurements for process optimization and routine process control. In Phase II, the results from the first year were applied to design new instruments for industrial applications. These instruments were then characterized and documented. We report here on four new instruments, each optimized for a specific application as demanded by industrial customers. The documentation for these instruments was very technical and involved considerable R&D. Applications were developed that applied the latest in R&D on industrial silicon materials. By investigating the compromises that would be necessary to measure industrial material directly without the sample preparation that is commonly done for good research, we were able to develop several very innovative applications that can now be done directly in the production line for process control.

Sinton, R. A.

2004-12-01T23:59:59.000Z

277

Stand-alone photovoltaic (PV) powered electrochromic window  

DOE Patents [OSTI]

A variable transmittance double pane window includes an electrochromic material that has been deposited on one pane of the window in conjunction with an array of photovoltaic cells deposited along an edge of the pane to produce the required electric power necessary to vary the effective transmittance of the window. A battery is placed in a parallel fashion to the array of photovoltaic cells to allow the user the ability to manually override the system when a desired transmittance is desired.

Benson, David K. (Golden, CO); Crandall, Richard S. (Boulder, CO); Deb, Satyendra K. (Boulder, CO); Stone, Jack L. (Lakewood, CO)

1995-01-01T23:59:59.000Z

278

Stand-alone photovoltaic (PV) powered electrochromic window  

DOE Patents [OSTI]

A variable transmittance double pane window includes an electrochromic material that has been deposited on one pane of the window in conjunction with an array of photovoltaic cells deposited along an edge of the pane to produce the required electric power necessary to vary the effective transmittance of the window. A battery is placed in a parallel fashion to the array of photovoltaic cells to allow the user the ability to manually override the system when a desired transmittance is desired. 11 figures.

Benson, D.K.; Crandall, R.S.; Deb, S.K.; Stone, J.L.

1995-01-24T23:59:59.000Z

279

Relativistic Multireference Many-body Perturbation Theory for Open-shell Ions with Multiple Valence Shell Electrons: the Transition Rates and Lifetimes of the Excited Levels in Chlorinelike Fe X  

SciTech Connect (OSTI)

A recently developed relatistic multireference many-body perturbation theory based on multireference configuration-interaction wavefunctions as zeroth order wavefunctions is outlined. The perturbation theory employs a general class of configuration-interaction wve functions as reference functions, and thus is applciable to multiple open valence shell systems with near degeneracy of a manifold of strongly interacting configurations. Multireference many-body perturbation calculations are reported for the ground and excited states of chlorine-like Fe X in which the near degeneracy of a manifold of strongly interacting configurations mandates a multireference treatment. Term energies of a total of 83 excited levels arising from the 3s{sup 2}3p{sup 5}, 3s3p{sup 6}, 3s{sup 2}3p{sup 4}3d, 3s3p{sup 5}3d, and 3s{sup 2}3p{sup 3}3d{sup 2} configurations of the ion are evaluated to high accuracy. Transition rates associated with E1/M1/E2/M2/E3 radiative decays and lifetimes of a number of excited levels are calculated and compared with laboratory measurements to critically evaluate recent experiments.

Ishikawa, Y; Santana, J A; Trabert, E

2009-09-30T23:59:59.000Z

280

Building America Webinar: Low-E Storms: The Next Big Thing in...  

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

include: * Thomas Culp is the owner of Birch Point Consulting, LLC, which provides engineering and strategic consulting services in the areas of energy efficient window...

Note: This page contains sample records for the topic "lifetime low-e double-pane" 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

Field Evaluation of Low-E Storm S.C. Drumheller  

E-Print Network [OSTI]

was performed in a cold climate. Six homes with single pane windows were monitored over the period of one inefficiency of single pane windows due to solar heat gain, poor insulating value, and air infiltration--combined with the large number of homes having single pane windows--creates a tremendous opportunity to provide energy

282

Building America Webinar: Low-E Storms: The Next Big Thing in Window Retrofits  

Broader source: Energy.gov [DOE]

Until recently, energy-efficient window retrofit options have largely been limited to repair or replacement; leaving the homeowner to decide between affordability and deeper energy savings.  A new...

283

Savings Project: Install Exterior Storm Windows With Low-E Coating |  

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 |Energy UsageAUDITVehicles »ExchangeDepartmentResolve to Save EnergySandiaDepartment

284

Storm Windows (Even with a Low-E Coating!) | 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) "of EnergyEnergyENERGYWomenthe House Committee on Energy andDepartmentDepartment ofTheSteven Croley

285

Photoassociative molecular spectroscopy for atomic radiative lifetimes.  

E-Print Network [OSTI]

very far apart, in so-called long- range molecular states, their mutual interaction is ruled by plain atomic properties. The high- resolution spectroscopic study of some molecular excited states populated by photoassociation of cold atoms (photoassociative spectroscopy) gives a good illustration of this property

Boyer, Edmond

286

Vt Variation Effects on Lifetime Reliability  

E-Print Network [OSTI]

and electrical equivalent of processor die, heat spreader, and heat sink. and static power are both proportional, and heat sink. and static power are both proportional to: Ps µ kT q 2 exp -Vteff - c2 c3kT/q Vteff = V) · Stress Migration (SM) · Quadratic temperature dependence · Thermal Cycling (TC) 8 #12;Brian Greskamp

Torrellas, Josep

287

THE MAXIMAL EXPECTED LIFETIME OF BROWNIAN MOTION ...  

E-Print Network [OSTI]

Pitman (Advanced Publishing Program), Boston, Mass.-London. [2] R. Ba˜nuelos, 2009 Four unknown constants. Oberwolfach Report 06, workshop on'Low ...

2010-06-17T23:59:59.000Z

288

'Thirsty' Metals Key to Longer Battery Lifetimes  

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

Contact: Kathy Kincade, +1 510 495 2124, kkincade@lbl.gov PCCPxantheascover Imagine a cell phone battery that lasted a whole week on a single charge. A car battery that worked...

289

THE LIFETIME OF BACTERIAL MESSENGER RNA  

E-Print Network [OSTI]

based on the concept of vary lng biological stabilidt! H' orlabelled adenin-e follc.l""lng addition of inducer was not

Moses, V.; Calvin, M.

2008-01-01T23:59:59.000Z

290

Lifetime and Reliability | 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.ProgramJulietipDepartmentJuneWhenJuly 28,The U.S. Life CyclePower Systems

291

Sandia National Laboratories: accelerated lifetime testing  

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

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

292

'Thirsty' Metals Key to Longer Battery Lifetimes  

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 SouthwestTechnologies | BlandinePrinceton Plasma

293

Societal lifetime cost of hydrogen fuel cell vehicles  

E-Print Network [OSTI]

biogas, LPG, ethanol, bio-diesel, DME, CH2/LH2 Gasoline,Gasoline, bio-fuel, H2, electricity Gasoline, diesel, CNG,

Sun, Yongling; Ogden, J; Delucchi, Mark

2010-01-01T23:59:59.000Z

294

Societal lifetime cost of hydrogen fuel cell vehicles  

E-Print Network [OSTI]

Andris R.Abele. Quantum Hydrogen Storage Systems, PresentedTIAX LLC, Analyses of Hydrogen Storage Materials and On-plant (BOP), but not the hydrogen storage system. This study

Sun, Yongling; Ogden, J; Delucchi, Mark

2010-01-01T23:59:59.000Z

295

Societal lifetime cost of hydrogen fuel cell vehicles  

E-Print Network [OSTI]

Comparative Assessment of Fuel Cell Cars, Massachusettselectric and hydrogen fuel cell vehicles, Journal of PowerTransition to Hydrogen Fuel Cell Vehicles & the Potential

Sun, Yongling; Ogden, J; Delucchi, Mark

2010-01-01T23:59:59.000Z

296

Ris-R-1418(EN) Examples of Fatigue Lifetime and  

E-Print Network [OSTI]

provides also calculations of re- liabilities and partial load safety factors under specific assumptions calculations of reliabilities and partial load safety factors under specific assump- tions about uncertainty-sectional loads to hot-spot stresses · Simulation of wind turbine response at given mean wind speeds

297

Societal lifetime cost of hydrogen fuel cell vehicles  

E-Print Network [OSTI]

fuel-cell vehicles in 2030. This comparative analysis, based on costfuel cell or hydrogen ICE) and all-electric vehicles. According to the analysis, the societal cost

Sun, Yongling; Ogden, J; Delucchi, Mark

2010-01-01T23:59:59.000Z

298

Societal lifetime cost of hydrogen fuel cell vehicles  

E-Print Network [OSTI]

vehicle -$1,612 No engine Vehicle retail cost to consumercosts, for hydrogen FCVs and conventional gasoline internal combustion engine vehicles (

Sun, Yongling; Ogden, J; Delucchi, Mark

2010-01-01T23:59:59.000Z

299

Statistics of Electromigration Lifetime Analyzed Using a Deterministic Transient Model  

E-Print Network [OSTI]

. Figure 1 shows two micrographs taken after an electromigration test. The electric current drives atoms increase; this line lasts longer. FIGURE 2. The electric current drives atoms to drift away from the via low-permittivity dielectric. Three testing variables are used: the line length, the electric current

Suo, Zhigang

300

Polymer Electrolyte Fuel Cell Lifetime Limitations: The Role...  

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

More Documents & Publications Non-Platinum Bimetallic Cathode Electrocatalysts Testing Oxygen Reduction Reaction Activity with the Rotating Disc Electrode Technique DOE Fuel Cell...

Note: This page contains sample records for the topic "lifetime low-e double-pane" 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

Exploiting Process Lifetime Distributions for Dynamic Load Balancing  

E-Print Network [OSTI]

grant number CCR­9201092. Allen Downey partially supported by NSF (DARA) grant DMW­8919074. An earlier

Harchol-Balter, Mor

302

Exploiting Process Lifetime Distributions for Dynamic Load Balancing  

E-Print Network [OSTI]

supported by NSF (DARA) grant DMW-8919074. An earlier version of this article appeared in the Proceedings

Papadopouli, Maria

303

Societal lifetime cost of hydrogen fuel cell vehicles  

E-Print Network [OSTI]

10,000-psi tank cost $2,458, or $11.1/kWh. Carbon fiber wastank cost is in the range of $10-$17/kWh and carbon fiber

Sun, Yongling; Ogden, J; Delucchi, Mark

2010-01-01T23:59:59.000Z

304

Radiative engineering of plasmon lifetimes in embedded nanoantenna arrays  

E-Print Network [OSTI]

a more homogeneous dielectric background allowing stronger diffractive couplings among plasmonic. J. Homola, S. S. Yee, and G. Gauglitz, "Surface plasmon resonance sensors: review," Sens. Actuators of resonant refractive index sensors," Opt. Express 16(2), 1020­1028 (2008). 13. K.-S. Lee, and M. A. El

Texas at Austin, University of

305

Using National Survey Data to Estimate Lifetimes of Residential Appliances  

E-Print Network [OSTI]

of Energy. Energy Information Administration, Released Mayof Energy. Energy Information Administration. Released Aprilof Energy. Energy Information Administration. Released April

Lutz, James D.

2013-01-01T23:59:59.000Z

306

Lifetimes of N = Z Nuclei As-66 and Br-70  

E-Print Network [OSTI]

coupling constant Gz of nuclear beta decay to the Fermi coupling constant Gz determined from muon decay, after correcting Gz for "inner" radia- tive effects' that depend upon the assumed substructure of the nucleon. An accurate determination of U... measured. As a first step in an effort to extend our knowledge of superallowed Fermi decays to higher Z systems, we have remeasured the half lives of As and Br, using a detection system that is subject to different systematic efFects from those...

Burch, R. H.; Gagliardi, Carl A.; Tribble, Robert E.

1988-01-01T23:59:59.000Z

307

Societal lifetime cost of hydrogen fuel cell vehicles  

E-Print Network [OSTI]

technology assumptions, and oil prices. Our results showenvironmental protection and oil price shocks have spurredcost scenarios for crude oil prices of 25 and 50 € /bbl. For

Sun, Yongling; Ogden, J; Delucchi, Mark

2010-01-01T23:59:59.000Z

308

Societal lifetime cost of hydrogen fuel cell vehicles  

E-Print Network [OSTI]

Mass Production Cost Estimation for Direct H2 PEM Fuel CellCost Analysis of Fuel Cell Systems for Transportation - Compressed Hydrogen and PEM

Sun, Yongling; Ogden, J; Delucchi, Mark

2010-01-01T23:59:59.000Z

309

PALSfit: A computer program for analysing positron lifetime spectra  

E-Print Network [OSTI]

.2 ResolutionFit 35 6 Control files 35 6.1 PositronFit control file 36 6.2 ResolutionFit control file 39]. Taking advantage of a new Graphical User Interface (GUI) for Windows, a number of user friendly facilities have been incorporated, in particular graphics displays. The two cornerstones in PALSfit

310

Temperature Dependent Lifetime Measurements Fluorescence from a Phosphor  

E-Print Network [OSTI]

in Figures 1 and 2. Figure 1. Photo of centrifuges used to separate isotopes of uranium. Figure 2. Diagram isotopes of uranium during the late 1980's. Another impressive example of this technology was a measurement to remotely measure temperature as a non-contact method in difficult situations where measurement by other

Dai, Pengcheng

311

Using National Survey Data to Estimate Lifetimes of Residential Appliances  

E-Print Network [OSTI]

conditioners (RACs), refrigerators, and freezers. GENERALsection). Refrigerators and Freezers Refrigerators followDifference* this Study Freezer Refrigerator Water Heater,

Lutz, James D.

2013-01-01T23:59:59.000Z

312

Societal lifetime cost of hydrogen fuel cell vehicles  

E-Print Network [OSTI]

upon fuel cell stack performance, catalyst cost, stackin 2025, the fuel cell system cost (stack and BOP) is aboutaffect the cost of fuel cell stack. In a recent report by

Sun, Yongling; Ogden, J; Delucchi, Mark

2010-01-01T23:59:59.000Z

313

annihilation lifetime spectra: Topics by E-print Network  

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

spectra from WIMP annihilation HEP - Theory (arXiv) Summary: If the present dark matter in the Universe annihilates into Standard Model particles, it must contribute to the...

314

Increasing Connection Lifetimes through Dynamic Distribution of Budgeted Power  

E-Print Network [OSTI]

usage. In their earlier work [2], [3] the authors proposed addressing these concerns by normalizing as the time interval for which the network is a connected graph. Broadly speaking, the network may partition energy supply sufficiently so that some of its incident links fail. Most prior research on network

Khan, Bilal

315

Societal lifetime cost of hydrogen fuel cell vehicles  

E-Print Network [OSTI]

analysis shows that hybrid and electric cars perform bettercar (4-5 passengers) Fuels Gasoline, CNG, diesel, FT50, methanol, H2 Powertrains ICE, hybrid,

Sun, Yongling; Ogden, J; Delucchi, Mark

2010-01-01T23:59:59.000Z

316

attenuation method lifetime: Topics by E-print Network  

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

L; Grski, M; Guz, Yu; Gracco, Valerio; Grahl, J; Graziani, E; Green, C; Grimm, H J; Gris, P; Grosdidier, G; Grzelak, K; Gnther, M; Guy, J; Hahn, F; Hahn, S; Haider, S;...

317

Societal lifetime cost of hydrogen fuel cell vehicles  

E-Print Network [OSTI]

Electricity H2 Gasoline, bio-fuel, H2, electricity Gasoline,bio-diesel, DME, CH2/LH2 Gasoline, electricity, H2 Powertrains ICE, hybrid, plug-in hybrid, battery, fuel

Sun, Yongling; Ogden, J; Delucchi, Mark

2010-01-01T23:59:59.000Z

318

Societal lifetime cost of hydrogen fuel cell vehicles  

E-Print Network [OSTI]

liu. A parametric study of PEM fuel cell performances.economic design of PEM fuel cell systems by multi-objectiveEstimation for Direct H2 PEM Fuel Cell System for Automotive

Sun, Yongling; Ogden, J; Delucchi, Mark

2010-01-01T23:59:59.000Z

319

25 Year Lifetime for Flexible Buildings Integrated Photovoltaics  

SciTech Connect (OSTI)

Although preliminary proof-of-principle of the efficacy of barrier materials and processes, first developed by Battelle at PNNL and commercialized by Vitex, has been demonstrated at the laboratory scale, there are several challenges to the practical commercial implementation of these developments in the Buildings Integrated Photovoltaics (BIPV) market. Two important issues that are addressed in this project are identifying a low cost substrate material that can survive in the outside environment (rain, heat, dust, hail, etc.) for 25 years and developing an encapsulation method for the photovoltaic (PV) cells that can meet the required barrier performance without driving the cost of the total barrier package out of range (remaining below $3.00/Wp). Without these solutions, current encapsulation technologies will limit the use of PV for BIPV applications. Flexible, light-weight packaging that can withstand 25 years in the field is required for a totally flexible integrated PV package. The benefit of this research is to make substantial progress in the development of a cost-effective, viable thin film barrier package which will be a critical enabling technology to meet the Solar America Initiative cost and device reliability goals, and to make photovoltaics (PV) more cost-competitive with electricity generated using fossil fuels. Increased PV installations will enable increased US electrical capacity and reduce dependence on imported oil through increased utilization of a widely abundant source of renewable energy (sunlight).

Gross, Mark E.

2010-07-10T23:59:59.000Z

320

A MEASUREMENT OF THE POSITIVE pi- Mu DECAY LIFETIME  

E-Print Network [OSTI]

Idaho Operations Office Iowa State College Kansas City Operations Branch Kellex Corporation Knolls Atomic Power Laboratory Los Alamos Scientific

Chamberlain, O.; Mozely, R.F.; Steinberger, J.; Wiegand, C.

2008-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "lifetime low-e double-pane" 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

SystematicsSystematics in neutron lifetimein neutron lifetime experimentsexperiments  

E-Print Network [OSTI]

is needed also for generation of initial isotropic distribution #12;Scope and techniques of my MC simulation)magnetic UCN storage) Santa Fe, Nov. 7, 2009 Albert Steyerl Department of Physics University of Rhode Island scattering distribution depends on roughness parameters (mean amplitude, mean surface slope ...). Usually far

Steyerl, Albert

322

Societal lifetime cost of hydrogen fuel cell vehicles  

E-Print Network [OSTI]

The Alternative Fuels Trade Model, ORNL-6771, SeptemberAssessing the Market Benefits of Alternative Motor Fuels –Comparison of Cars with Alternative Fuels/Engines, Energy

Sun, Yongling; Ogden, J; Delucchi, Mark

2010-01-01T23:59:59.000Z

323

Relative Lifetime Prediction for CPV Die-Attach Layers: Preprint  

SciTech Connect (OSTI)

In concentrating photovoltaics (CPV) cell assemblies, a large-area die-attach layer is subjected to thermal cycles, leading to thermomechanical fatigue. This causes cracking and the eventual failure of the CPV cell by thermal runaway. We define a damage metric representing lumped progress toward failure and present a numerical model for computing the accumulation of damage for arbitrary transient temperature conditions. The model is applied to a particular design with a solder die-attach layer. We show that accelerated-test thermal cycles with higher ramp rates cause more damage, both per cycle and per unit time. Outdoor exposure to one entire year in two geographic locations is also simulated, revealing that a year of exposure in Golden, Colorado is equivalent to 1.4 years of exposure in Oak Ridge, Tennessee.

Silverman, T. J.; Bosco, N.; Kurtz, S.

2012-03-01T23:59:59.000Z

324

Societal lifetime cost of hydrogen fuel cell vehicles  

E-Print Network [OSTI]

system cost model, and oil security metrics model (OSMM).the Energy Security Benefits of Reduced U.S. Oil Imports,

Sun, Yongling; Ogden, J; Delucchi, Mark

2010-01-01T23:59:59.000Z

325

Societal lifetime cost of hydrogen fuel cell vehicles  

E-Print Network [OSTI]

Fuel-cell system cost estimate Fuel cell performance andsignificantly affect the cost of fuel cell stack. In aTo estimate how the costs of fuel-cell system components

Sun, Yongling; Ogden, J; Delucchi, Mark

2010-01-01T23:59:59.000Z

326

annihilation lifetime spectroscopy: Topics by E-print Network  

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

S. Yang1 Department of Physics, University to probe the pore characteristics (size, distribution, and interconnectivity) in thin, porous films) with a depth distribution that...

327

Using National Survey Data to Estimate Lifetimes of Residential Appliances  

E-Print Network [OSTI]

furnaces, boilers, water heaters, room air-conditioners,furnaces, boilers, water heaters, room air-conditioners (and Electric Storage Water Heaters Table 6 and 7 show the

Lutz, James D.

2013-01-01T23:59:59.000Z

328

New imaging capability reveals possible key to extending battery lifetime,  

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

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

329

High Precision Measurement of the 19Ne Lifetime  

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 withconfinement plasmas in the Madison SymmetricHighPerformancngPrecision

330

Using National Survey Data to Estimate Lifetimes of Residential Appliances  

E-Print Network [OSTI]

Gas and Electric Storage Water Heaters Table 6 and 7 showof gas and electric storage water heater, respectively. Theand ? = 3.2 for gas storage water heaters and ? = 13.2, ? =

Lutz, James D.

2013-01-01T23:59:59.000Z

331

Key Parameters Affecting DPF Performance Degradation and Impact on Lifetime  

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-Dimensionalthe10 DOEWashington, DC 20585on253.16582104)Key Issues Key

332

LED LUMINAIRE LIFETIME: Recommendations for Testing and Reporting |  

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-Dimensionalthe10 DOEWashington, DCKickoffLDV HVAC Model

333

LED Luminaire Lifetime: Recommendations For Testing and Reporting |  

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-Dimensionalthe10 DOEWashington, DCKickoffLDV HVAC ModelLEDLights for

334

Polymer Electrolyte Fuel Cell Lifetime Limitations: The Role of  

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/309 Reviewers | Department of EnergyDepartment

335

LED Luminaire Lifetime: Recommendations for Testing and Reporting  

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 theseLED

336

Apparatus for measuring minority carrier lifetime using liquid conductor -  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth (AOD)ProductssondeadjustsondeadjustAbout theOFFICEAmes LaboratoryAntonya Sanders-Promoting.EnergyEnergy

337

NREL: Energy Storage - Battery Lifetime Analysis and Simulation Tool Suite  

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

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

338

Correlated Atomic Force Microscopy and Flourescence Lifetime Imaging of  

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 on &gamma;-Al2O3. | EMSLHydrogen andCorrective ActionLive

339

Photodriving Water Oxidation Catalysts: Extending Hole Lifetimes | ANSER  

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 Home Design Passive SolarCenter | Argonne-Northwestern National

340

Societal lifetime cost of hydrogen fuel cell vehicles  

E-Print Network [OSTI]

of Energy for hydrogen and fuel cell vehicle markethybrid, electric and hydrogen fuel cell vehicles, Journal ofof the Transition to Hydrogen Fuel Cell Vehicles & the

Sun, Yongling; Ogden, J; Delucchi, Mark

2010-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "lifetime low-e double-pane" 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

Using National Survey Data to Estimate Lifetimes of Residential Appliances  

E-Print Network [OSTI]

conditioners, heat pumps, furnaces, boilers, water heaters,conditioners, heat pumps, furnaces, boilers, water heaters,Water Heater, Gas Room Air- Conditioning Central Air- Conditioning Boiler, Gas Furnace, Gas Heat Pump *

Lutz, James D.

2013-01-01T23:59:59.000Z

342

Environmental Aspects of Thin Film Module Production and Product Lifetime  

E-Print Network [OSTI]

-SiGe #12;4 Tellurium for PV* from Copper SmeltersTellurium for PV* from Copper Smelters 0 500 1000 1500

Ohta, Shigemi

343

Hodges residence: performance of a direct gain passive solar home in Iowa  

SciTech Connect (OSTI)

Results are presented for the performance of the Hodges Residence, a 2200-square-foot earth-sheltered direct gain passive solar home in Ames, Iowa, during the 1979-80 heating season, its first occupied season. No night insulation was used on its 500 square feet of double-pane glass. Total auxiliary heat required was 43 GJ (41 MBTU) gross and 26 GJ (25 MBTU) net, amounting, respectively, to 60 and 36 kJ/C/sup 0/-day-m/sup 2/ (2.9 and 1.8 BTU/F/sup 0/-day-ft/sup 2/). The heating season was unusually cloudy and included the cloudiest January in the 21 years of Ames insolation measurements. Results are also presented for the performance of the hollow-core floor which serves as the main storage mass and for the comfort range in the house.

Hodges, L.

1980-01-01T23:59:59.000Z

344

Field Evaluation of Highly Insulating Windows in the Lab Homes: Winter Experiment  

SciTech Connect (OSTI)

This field evaluation of highly insulating windows was undertaken in a matched pair of 'Lab Homes' located on the Pacific Northwest National Laboratory (PNNL) campus during the 2012 winter heating season. Improving the insulation and solar heat gain characteristics of a home's windows has the potential to significantly improve the home's building envelope and overall thermal performance by reducing heat loss (in the winter), and cooling loss and solar heat gain (in the summer) through the windows. A high quality installation and/or window retrofit will also minimize or reduce air leakage through the window cavity and thus also contribute to reduced heat loss in the winter and cooling loss in the summer. These improvements all contribute to decreasing overall annual home energy use. Occupant comfort (non-quantifiable) can also be increased by minimizing or eliminating the cold 'draft' (temperature) many residents experience at or near window surfaces that are at a noticeably lower temperature than the room air temperature. Lastly, although not measured in this experiment, highly insulating windows (triple-pane in this experiment) also have the potential to significantly reduce the noise transmittance through windows compared to standard double-pane windows. The metered data taken in the Lab Homes and data analysis presented here represent 70 days of data taken during the 2012 heating season. As such, the savings from highly insulating windows in the experimental home (Lab Home B) compared to the standard double-pane clear glass windows in the baseline home (Lab Home A) are only a portion of the energy savings expected from a year-long experiment that would include a cooling season. The cooling season experiment will take place in the homes in the summer of 2012, and results of that experiment will be reported in a subsequent report available to all stakeholders.

Parker, Graham B.; Widder, Sarah H.; Bauman, Nathan N.

2012-06-01T23:59:59.000Z

345

Methodologies to assess potential lifetime limits for extended burnup nuclear fuel  

E-Print Network [OSTI]

predict no increased propensity for cladding failure due to PCI induced SCC at extended burnups. The other model predicts a significant probability of cladding failure occurring for a control rod ejection event at extended burnups. Generally, rod... 9 Forcing functions for the Control Rod Ejection at full power transient 168 10 Transient event cladding hoop stress calculations. . 182 11 Model results for cladding failure. . . . 185 LIST OF FIGURES Figure Page 1 High buinup total data...

De Vore, Curtis Vincent

1986-01-01T23:59:59.000Z

346

LIFETIME PUBLICATIONS (GREEN UNDERGRADUATES; RED = GRADUATE STUDENTS; Blue = PDFS) PEER REVIEWED  

E-Print Network [OSTI]

(A) BOOKS 1 B BROOK, M. A. SILICON IN ORGANIC, ORGANOMETALLIC AND POLYMER CHEMISTRY, WILEY: NEW YORK, 2000, 608 pages, (704 including tables, and indices, SOLE AUTHOR). (B) CONTRIBUTIONS TO BOOKS 12. F. Permeability of silicone - water interfaces in water-in-oil emulsions. In: Organosilicon Chemistry V: From

Hitchcock, Adam P.

347

Lifetime and Emission Characteristics of Electronic Excitations in 2D Optical Lattices  

E-Print Network [OSTI]

Collective electronic excitations "excitons" in planar optical lattices exhibit strong modifications of the radiative damping rate and directional emission pattern as compared to a single excited atom. Excitons for long wave numbers and polarizations orthogonal to the lattice plane exhibit superradiance with a very short life time and a tightly confined emission direction. For shorter wavelength and in plane polarization they can posses a long life time, which beyond a critical wave number tends to infinity. Those excitons thus become metastable and decoupled from the free radiation field. They can store a single energy quantum for a long time and transfer the excitation over long distances. In general the spatial, polarization and frequency dependence of the emission pattern can provide us with optical and electronic properties of optical lattices.

Hashem Zoubi; Helmut Ritsch

2011-03-15T23:59:59.000Z

348

An experimental study of spatial effects on mean neutron lifetime measurement  

E-Print Network [OSTI]

(Phase) '3 Reactivity Oscillator Reactor Response System Schematic Circuit Diagram for Producing Counting Pulses Input Wave Form Typical Oscilloscope Trace Cross Section of AGN-201 Reactor 13 15 16 10 Typical Oscillograph of Reactor Response... Showing Pertinent Dimensions Transfer Function Magnitude versus Oscillator Frequency 20 Transfer Function Phase versus Oscillator 21 Frequency CHAPTER I INTRODUCTION A particularly useful way of describing the kinetic behavior of a nuclear reactor...

Hooke, William Bruce

1966-01-01T23:59:59.000Z

349

lifetime and the relaxation process to the ground state are not known, and either may  

E-Print Network [OSTI]

not induce hydrogen desorption (23). Sample cooling was accomplished by pumping liquid N2 or He through. Clean Si(100)-2 1 surfaces were prepared by heating the Si(100) substrate (1ohm-cm, phosphorus doped while the substrate temperature was held at 600 K. Molecular adsorption experiments were per- formed

Griffith, Caitlin A.

350

Atomistic Fracture and Nano-Macro Transition for Strength and Lifetime Statistics of Quasibrittle Structures  

E-Print Network [OSTI]

, which are random. Therefore, according to the central limit theorem, the failure load must follow is very large (>104 ), then the failure load must follow the Weibull distribution. #12;2 Quasibrittle structures under constant loads (creep rupture). It is shown that, for quasibrittle materials, there exists

Bazant, Martin Z.

351

Catalytic ionic hydrogenation of ketones using tungsten or molybdenum catalysts with increased lifetimes  

DOE Patents [OSTI]

The present invention is a process for the catalytic hydrogenation of ketones and aldehydes to alcohols at low temperatures and pressures using organometallic molybdenum and tungsten complexes and the catalyst used in the process. The reactants include a functional group which is selected from groups represented by the formulas R*(C.dbd.O)R' and R*(C.dbd.O)H, wherein R* and R' are selected from hydrogen or any alkyl or aryl group. The process includes reacting the organic compound in the presence of hydrogen and a catalyst to form a reaction mixture. The catalyst is prepared by reacting Ph.sub.3 C.sup.+ A.sup.- with a metal hydride. A.sup.- represents an anion and can be BF.sub.4.sup.-, PF.sub.6.sup.-, CF.sub.3 SO.sub.3.sup.- or Bar'.sub.4.sup.-, wherein Ar'=3,5-bis(trifluoromethyl)phenyl. The metal hydride is represented by the formula: HM(CO).sub.2 [.eta..sup.5 :.eta..sup.1 --C.sub.5 H.sub.4 (XH.sub.2).sub.n PR.sub.2 ] wherein M represents a molybdenum (Mo) atom or a tungsten (W) atom; X is a carbon atom, a silicon atom or a combination of carbon (C) and silicon (Si) atoms; n is any positive integer; R represents two hydrocarbon groups selected from H, an aryl group and an alkyl group, wherein both R groups can be the same or different. The metal hydride is reacted with Ph.sub.3 C.sup.+ A.sup.- either before reacting with the organic compound or in the reaction mixture.

Bullock, R. Morris; Kimmich, Barbara F.; Fagan, Paul J.; Hauptman, Elisabeth

2003-09-02T23:59:59.000Z

352

Thin, High Lifetime Silicon Wafers with No Sawing; Re-crystallization in a Thin Film Capsule  

SciTech Connect (OSTI)

The project fits within the area of renewable energy called photovoltaics (PV), or the generation of electricity directly from sunlight using semiconductor devices. PV has the greatest potential of any renewable energy technology. The vast majority of photovoltaic modules are made on crystalline silicon wafers and these wafers accounts for the largest fraction of the cost of a photovoltaic module. Thus, a method of making high quality, low cost wafers would be extremely beneficial to the PV industry The industry standard technology creates wafers by casting an ingot and then sawing wafers from the ingot. Sawing rendered half of the highly refined silicon feedstock as un-reclaimable dust. Being a brittle material, the sawing is actually a type of grinding operation which is costly both in terms of capital equipment and in terms of consumables costs. The consumables costs associated with the wire sawing technology are particularly burdensome and include the cost of the wire itself (continuously fed, one time use), the abrasive particles, and, waste disposal. The goal of this project was to make wafers directly from molten silicon with no sawing required. The fundamental concept was to create a very low cost (but low quality) wafer of the desired shape and size and then to improve the quality of the wafer by a specialized thermal treatment (called re-crystallization). Others have attempted to create silicon sheet by recrystallization with varying degrees of success. Key among the difficulties encountered by others were: a) difficulty in maintaining the physical shape of the sheet during the recrystallization process and b) difficulty in maintaining the cleanliness of the sheet during recrystallization. Our method solved both of these challenges by encapsulating the preform wafer in a protective capsule prior to recrystallization (see below). The recrystallization method developed in this work was extremely effective at maintaining the shape and the cleanliness of the wafer. In addition, it was found to be suitable for growing very large crystals. The equipment used was simple and inexpensive to operate. Reasonable solar cells were fabricated on re-crystallized material.

Emanuel Sachs

2013-01-16T23:59:59.000Z

353

LIFETIME-AWARE MULTICAST ROUTING IN WIRELESS AD HOC Morteza Maleki and Massoud Pedram  

E-Print Network [OSTI]

studies on the construction of energy-efficient broadcast and multicast tree in ad hoc networks ([6}@usc.edu Abstract. One of the main design constraints in mobile ad hoc networks (MANETs) is that they are energy constrained. Hence, routing algorithms must be developed to consider energy consumption of the nodes

Pedram, Massoud

354

Fluorescence lifetime snapshots reveal two rapidly reversible mechanisms of photoprotection in  

E-Print Network [OSTI]

for charge separa- tion presents a significant hazard to PSIIs of oxygen-evolving or- ganisms, because it can in the special pairs of the reaction centers of photosystems I and II (PSI and PSII), where charge separation turned on, a high population of PSIIs contains closed re- action centers. This closure occurs because

Fleming, Graham R.

355

Measurement of the ?(0)(b) lifetime in pp collisions at s?=7 TeV  

E-Print Network [OSTI]

. Tuominiemi, E. Tuovinen, L. Wendland Lappeenranta University of Technology, Lappeenranta, Finland A. Korpela, T. Tuuva DSM/IRFU, CEA/Saclay, Gif-sur-Yvette, France M. Besancon, S. Choudhury, F. Couderc, M. Dejardin, D. Denegri, B. Fabbro, J.L. Faure, F. Ferri...

Baringer, Philip S.; Bean, Alice; Benelli, Gabriele; Kenny, R. P. III; Murray, Michael J.; Noonan, Danny; Sanders, Stephen J.; Stringer, Robert W.; Wood, Jeffrey Scott; Chatrchyan, S.; Khachatryan, V.; Sirunyan, A. M.; Tumasyan, A.; Adam, W.

2013-07-26T23:59:59.000Z

356

Measurement of the ?(b) Lifetime in the Exclusive Decay ?b?J/??  

E-Print Network [OSTI]

. Nilsen,22 C. Noeding,22 A. Nomerotski,50 S. F. Novaes,4 T. Nunnemann,24 V. O’Dell,50 D. C. O’Neil,5 G. Obrant,39 C. Ochando,15 D. Onoprienko,59 N. Oshima,50 J. Osta,55 R. Otec,9 G. J. Otero y Garzo´n,51 M. Owen,44 P. Padley,80 M. Pangilinan,77 N...

Baringer, Philip S.; Bean, Alice; Hensel, Carsten; Moulik, Tania; Wilson, Graham Wallace; Abazov, V. M.; Abbott, B.; Abolins, M.; Acharya, B. S.; Adams, M.

2007-10-01T23:59:59.000Z

357

Microstructurally based thermomechanical fatigue lifetime model of solder joints for electronic applications  

SciTech Connect (OSTI)

We present a new methodology for predicting the fatigue life of solder joints for electronics applications. This approach involves integration of experimental and computational techniques. The first stage involves correlating the manufacturing and processing parameters with the starting microstructure of the solder joint. The second stage involves a series of experiments that characterize the evolution of the microstructure during thermal cycling. The third stage consists of a computer modeling and simulation effort that utilizes the starting microstructure and experimental data to produce a reliability prediction of the solder joint. This approach is an improvement over current methodologies because it incorporates the microstructure and properties of the solder directly into the model and allows these properties to evolve as the microstructure changes during fatigue.

Frear, D.R.; Rashid, M.M.; Burchett, S.N.

1993-07-01T23:59:59.000Z

358

Lifetime Approximation Schemes Allow Multicast Algorithm with Linear Message Complexity in Wireless Sensor Networks  

E-Print Network [OSTI]

residual battery energy based on the observation that long-lived multicast / broadcast trees should consume information in order to construct an energy efficient multicast tree. Sometimes, this centralized approach Sensor Networks Mianxiong Dong, Song Guo and Minyi Guo School of Electrical and Computer Engineering

Guo, Minyi

359

Online Lifetime-Centric Multicast Routing: for AdU Hoc Networks with Directional Antennas  

E-Print Network [OSTI]

energy required to maintain a tree (broadcastlmulticast) [Z], [4], [5],[6], 1141, [24], E251.Thomas: Hou*. Yi Shi*, Hanif U. Sheralit, Jeffrey E. Wieselthied *The Bradley Department of Electrical-beam directional antenna and k provisioned with limited energy. We are interested in an online muIticast routing

Hou, Y. Thomas

360

E-Print Network 3.0 - accelerated life-time testing Sample Search...  

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

Summary: ,9 . Despite its impact on the performance and life- time of wind turbines, the published research on wind... for the drive average train acceleration...

Note: This page contains sample records for the topic "lifetime low-e double-pane" 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

Primordial Black Holes as Heat Sources for Living Systems with Longest Possible Lifetimes  

E-Print Network [OSTI]

Just forty years ago, Hawking wrote his famous paper on primordial black holes (PBH). There have been since innumerable discussions on the consequences of the existence of such exotic objects and ramifications of their properties. Here we suggest that PBH's in an ever expanding universe (as implied by dark energy domination, especially of a cosmological constant) could be the ultimate repository for long lived living systems. PBH's having solar surface temperatures would last 10^32 years as a steady power source and should be considered in any discussion on exobiological life.

C Sivaram; Kenath Arun; Kiren O V

2014-02-14T23:59:59.000Z

362

Data Science Study Protocols for Investigating Lifetime and Degradation of PV Technology Systems  

E-Print Network [OSTI]

of Epidemiology and Biostatistics, Case Western Reserve University Abstract -- The reliability of photovoltaic (PV. Index Terms -- photovoltaic systems, regression analysis, enter- prise resource planning, knowledge management I. INTRODUCTION AND BACKGROUND The reliability of PV technology systems is of the utmost im

Rollins, Andrew M.

363

Lifetime of carbon capture and storage as a climate-change mitigation technology  

E-Print Network [OSTI]

- logic storage capacities and sustainable injection rates, which has contributed to the absence for long-term storage (4, 5). Compared with other mitigation technologies such as renewable energy, CCSLifetime of carbon capture and storage as a climate-change mitigation technology Michael L

364

SciTech Connect: Determination of free polaron lifetime in organic...  

Office of Scientific and Technical Information (OSTI)

(fuels), solid state lighting, charge transport, materials and chemistry by design, optics, synthesis (novel materials), synthesis (self-assembly), synthesis (scalable...

365

Maximizing Network Lifetime Via 3G Gateway Assignment in Dual-Radio Sensor Networks  

E-Print Network [OSTI]

- ments, such as temperature, humidity, wind, solar radiation, etc. [3]. Sensor nodes are typically are no longer applicable. Rather, a third party network, e.g., FDDI, ISDN, or VPN, is to be leased

California at Berkeley, University of

366

Hyperfine predissociation in the B state of iodine investigated through lifetime measurements of individual hyperfine sublevels  

E-Print Network [OSTI]

. - The dynamics of molecular excited states is an important chapter of present-day molecular physics from the level under investigation following a pulsed excitation of this level. Our laser-excited

Boyer, Edmond

367

Probing the photoluminescence properties of gold nanoclusters by fluorescence lifetime correlation spectroscopy  

SciTech Connect (OSTI)

Gold nanoclusters (Au NCs) have attracted much attention for promising applications in biological imaging owing to their tiny sizes and biocompatibility. So far, most efforts have been focused on the strategies for fabricating high-quality Au NCs and then characterized by conventional ensemble measurement. Here, a fusion single-molecule technique combining fluorescence correlation spectroscopy and time-correlated single-photon counting can be successfully applied to probe the photoluminescence (PL) properties for sparse Au NCs. In this case, the triplet-state dynamics and diffusion process can be observed simultaneously and the relevant time constants can be derived. This work provides a complementary insight into the PL mechanism at the molecular levels for Au NCs in solution.

Yuan, C. T., E-mail: ctyuan@cycu.edu.tw; Lin, T. N.; Shen, J. L. [Department of Physics, Chung Yuan Christian University, Chung-Li, Taiwan (China) [Department of Physics, Chung Yuan Christian University, Chung-Li, Taiwan (China); Center for Biomedical Technology, Chung Yuan Christian University, Taiwan (China); Lin, C. A.; Chang, W. H. [Center for Biomedical Technology, Chung Yuan Christian University, Taiwan (China) [Center for Biomedical Technology, Chung Yuan Christian University, Taiwan (China); Department of Biomedical Engineering, Chung Yuan Christian University, Taiwan (China); Cheng, H. W. [Department of Engineering and system science, National Tsing Hua University, Taiwan (China)] [Department of Engineering and system science, National Tsing Hua University, Taiwan (China); Tang, J., E-mail: jautang@gate.sinica.edu.tw [Research Center for Applied Sciences, Academia Sinica, Taiwan (China)

2013-12-21T23:59:59.000Z

368

Constraining Proton Lifetime in SO(10) with Stabilized Doublet-Triplet Splitting  

SciTech Connect (OSTI)

We present a class of realistic unified models based on supersymmetric SO(10) wherein issues related to natural doublet-triplet (DT) splitting are fully resolved. Using a minimal set of low dimensional Higgs fields which includes a single adjoint, we show that the Dimopoulos-Wilzcek mechanism for DT splitting can be made stable in the presence of all higher order operators without having pseudo-Goldstone bosons and flat directions. The {mu} term of order TeV is found to be naturally induced. A Z{sub 2}-assisted anomalous U(1){sub A} gauge symmetry plays a crucial role in achieving these results. The threshold corrections to {alpha}{sub 3}(M{sub Z}), somewhat surprisingly, are found to be controlled by only a few effective parameters. This leads to a very predictive scenario for proton decay. As a novel feature, we find an interesting correlation between the d = 6 (p {yields} e{sup +}{pi}{sup 0}) and d = 5 (p {yields} {bar {nu}}K{sup +}) decay amplitudes which allows us to derive a constrained upper limit on the inverse rate of the e{sup +}{pi}{sup 0} mode. Our results show that both modes should be observed with an improvement in the current sensitivity by about a factor of five to ten.

Babu, K.S.; /Oklahoma State U.; Pati, Jogesh C.; /SLAC; Tavartkiladze, Zurab; /Oklahoma State U. /Tbilisi, Inst. Phys.

2011-06-28T23:59:59.000Z

369

Exploiting Process Lifetime Distributions for Dynamic Load Balancing Mor Harchol-Balter Allen B. Downeyy  

E-Print Network [OSTI]

(DARA) grant DMW-8919074. of processes and improve the utilization of the processors. Analytic models

Harchol-Balter, Mor

370

SciTech Connect: Prediction of the Creep-Fatigue Lifetime of...  

Office of Scientific and Technical Information (OSTI)

Timothy Roney Publication Date: 2014-08-01 OSTI Identifier: 1166024 Report Number(s): INLCON-12-27504 DOE Contract Number: DE-AC07-05ID14517 Resource Type: Conference Resource...

371

FCS EXTENSION AWARDS FY10 2010 Bonnie Teater Community Development Educator Lifetime Achievement Award  

E-Print Network [OSTI]

-Family Consumer Sciences Educational Publication Award Mickey Simpson, Extension Educator-Family Consumer Sciences-Family Consumer Sciences MARY M WELLS DIVERSITY AWARD NATIONAL EDUCATION ASSOCIATION FAMILY CONSUMER SCIENCESDaniel, Extension Educator-Family Consumer Sciences NATIONAL ASSOCIATION EDUCATION 4-H ASSOCIATION

Veiga, Pedro Manuel Barbosa

372

Development of lifetime test procedure for powder evacuated panel insulation. CRADA final report  

SciTech Connect (OSTI)

This CRADA is between Appliance Research Consortium (ARC) of the Association of Home Appliance Manufacturers (AHAM) and the Lockheed Martin Energy Research Corp. A Powder Evacuated Panel (PEP) is a "super" thermal insulation, having a thermal resistivity (R) substantially above that of existing insulation without the environmental problems of some insulations such as Chlorofluorocarbon (CFC) blown foam.

Wilkes, K E; Graves, R S; Childs, K W

1996-03-01T23:59:59.000Z

373

On the Network Lifetime of Wireless Sensor Networks Under Optimal Power Control  

E-Print Network [OSTI]

significantly reduces energy wastage by utilizing sleep cycles of the radio. In such networks, overhearing causes significant energy losses, especially if the network density is high. Our calculations demonstrate are powered by fixed energy resources such as a battery, and consequently, their utility is limited

Nasipuri, Asis

374

Spectroscopic Determination of Phonon Lifetimes in Rhenium-Doped MoS2 Nanoparticles  

E-Print Network [OSTI]

to the thermoelectric figure of merit.3 is also important for determining the total energy loss rate, a concept, respectively. By contrast, Born charge is affected only by size. These findings illustrate the utility and their interactions govern the properties of many complex materials including ferroelectrics, thermo- electrics

375

Pictures on my wall, a lifetime in Kansas, by Florence L. Snow.  

E-Print Network [OSTI]

PICTURES ON MY WALL came to riding alone, bareback, and to standing up something in your own fashion on the gay blanket that came with him. Father meant for us always to be good sports, so we never suggested that we should have two ponies. Instead we... the town he so far had helped to build. As he was a progressive farmer and breeder of sterling stock, the Wood son County Fair became one of his strong public interests. Our Woodson County Fair, like all other county fairs, ap pealed to every ambitious...

Snow, Florence Lydia

1945-01-01T23:59:59.000Z

376

Improved lifetimes and synchronization behavior in multi-grid inertial electrostatic confinement fusion devices  

E-Print Network [OSTI]

A high output power source is required for fast, manned exploration of the solar system, especially the outer planets. Travel times measured in months, not years, will require high power, lightweight nuclear systems. The ...

McGuire, Thomas John, 1977-

2007-01-01T23:59:59.000Z

377

Upper Bounds for the Selection of the Cryptographic Key Lifetimes: Bounding the  

E-Print Network [OSTI]

Balsamo (MI) 20092, Italy alfonso.degregorio@trustedevidence.com Abstract. With physical attacks to protect against physical attacks that exploit in a clever way the peculiarities inherent the physical Report #12; 2 Consequently, one should not rely on the services delivered by today's crypto­ graphic

378

Upper Bounds for the Selection of the Cryptographic Key Lifetimes: Bounding the  

E-Print Network [OSTI]

(MI) 20092, Italy alfonso.degregorio@trustedevidence.com Abstract. With physical attacks threatening to protect against physical attacks that exploit in a clever way the peculiarities inherent the physical Report #12;2 Consequently, one should not rely on the services delivered by today's crypto- graphic

379

E-Print Network 3.0 - atomic lifetime measurements Sample Search...  

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

D6partement... -Saclay: F-91191 Gif-sur-Yvette Cedex. France Atomic vapor laser isotope separation (SILVA) has been... of an uranium atomic vapor stream, the development of this...

380

The effect of frequency on the lifetime of a surface micromachined microengine driving a load  

SciTech Connect (OSTI)

Experiments have been performed on surface micromachined microengines driving load gears to determine the effect of the rotation frequency on median cycles to failure. The authors did observe a frequency dependence and have developed a model based on fundamental wear mechanisms and forces exhibited in resonant mechanical systems. Stressing loaded microengines caused observable wear in the rotating joints and in a few instances led to fracture of the pin joint in the drive gear.

Tanner, D.M.; Miller, W.M.; Eaton, W.P.; Irwin, L.W.; Peterson, K.A.; Dugger, M.T.; Senft, D.C.; Smith, N.F.; Tangyunyong, P.; Miller, S.L.

1998-03-01T23:59:59.000Z

Note: This page contains sample records for the topic "lifetime low-e double-pane" 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

Atmospheric Environment 37 (2003) 21932205 Atmospheric lifetime as a probe of radical chemistry in the  

E-Print Network [OSTI]

carried out to study OH photochemistry in the troposphere (Eisele et al., 1994; Atlas and Ridley, 1996 study of a very broad range of trace species and included measurements of [OH] (Mount and Williams, 1997

382

Computational prediction of the lifetime of self-healing CMC structures M. Geneta,1,  

E-Print Network [OSTI]

chemins, 33187 Le Haillan Cedex, France Abstract Self-healing Ceramic Matrix Composites (CMCs) are good. Keywords: A. Ceramic matrix composites, B. Environmental degradation, B. Mechanical properties, C. Finite . . . . . . . . . . . . . 4 3 Modeling of environmental damage and healing 5 3.1 Matrix healing

Boyer, Edmond

383

Costs of mating competition limit male lifetime breeding success in polygynous mammals  

E-Print Network [OSTI]

(5858), 1882- 1885. 44. Rubenstein, D. R. & Lovette, I. J. 2009 Reproductive skew and selection on female ornamentation in social species. Nature 462(7274), 786-789. 45. Young, A. J. & Bennett, N. C. 2013 Intra-sexual selection in cooperative mammals and birds...

Lukas, Dieter; Clutton-Brock, Tim

2014-05-14T23:59:59.000Z

384

Costs of mating competition limit male lifetime breeding success in polygynous mammals  

E-Print Network [OSTI]

. Nature 462(7274), 786-789. 42. Young, A. J. & Bennett, N. C. 2013 Intra-sexual selection in cooperative mammals and birds: why are females not bigger and better armed? Phil. Trans. R. Soc. B 368(1631), 20130075. Supplementary references S43. Glander, K. E...

Lukas, Dieter; Clutton-Brock, Tim

2014-05-14T23:59:59.000Z

385

Precision Measurement of the Mass and Lifetime of the ?[0 over b] Baryon  

E-Print Network [OSTI]

Using a proton-proton collision data sample corresponding to an integrated luminosity of 3??fb[superscript ?1] collected by LHCb at center-of-mass energies of 7 and 8 TeV, about 3800 ?0b??+c??, ?+c?pK??+ signal decays are ...

Counts, Ian Thomas Hunt

386

Enhancing Lifetime Reliability Of Chip Multiprocessors Through 3D Resource Sharing  

E-Print Network [OSTI]

chips. In ACM SIGARCH Computer Architecture News, volume 34,In High Performance Computer Architecture (HPCA), 2012 IEEEIn ACM SIGARCH Computer Architecture News, volume 36, pages

Strikos, Nikolaos

387

Eect of vortices on the spinip lifetime of atoms in supercon ducting atomchips  

E-Print Network [OSTI]

of developping new hybrid atomic{solid­state systems. Concurrently, theoretical studies have made quantitative of light and matter; related experiments PACS 47.32.C­ { Vortex dynamics Abstract. ­ We study theoretically dramatically smaller than in equivalent room­temperature atom­chip setups using normal metals. Atom chips allow

Recanati, Catherine

388

Analysis of present day and future OH and methane lifetime in the ACCMIP simulations  

E-Print Network [OSTI]

A. M. , Horowitz, L. W. , Lamar- que, J. -F. , Lin, M. ,characteristics, see Lamar- que et al. (2013). Experiments

2013-01-01T23:59:59.000Z

389

Temperature Dependence of Single CdSe/ZnS Quantum Dots Luminescence Lifetime  

E-Print Network [OSTI]

, such as quantum dots (QDs), has grown dramatically. These semiconductor QDs bridge the gap between single

Paris-Sud XI, Université de

390

Using fluorescence lifetime for discriminating detector afterpulsing in fluorescence-correlation spectroscopy  

E-Print Network [OSTI]

ACF , i.e., the second- order correlation function of the fluorescence intensity sig- nal. The physical meaning of the ACF is that it is propor- tional to the probability to detect, on average, a photon- nique, although the analysis does not explicitly identify single molecule detection events. On different

Enderlein, Jörg

391

An icing physics study by using lifetime-based molecular tagging thermometry technique  

E-Print Network [OSTI]

- ing the wind turbine to shut off (Dalili et al., 2009). Icing can also affect the tower structures of water droplets Solidification process Micro scale heat transfer Wind turbine icing a b s t r a c- ming, Minnesota, and Iowa, where wind turbines are subjected to the problems caused by cold climate

Hu, Hui

392

Prolonging Sensor Network Lifetime Through Wireless Charging Yang Peng, Zi Li, Wensheng Zhang, and Daji Qiao  

E-Print Network [OSTI]

networks. In this paper, we design such a system, build a proof-of-concept proto- type, conduct experiments, little work has been reported on designing and implementing a wire- less charging system for sensor and design pa- rameters have also been studied, which may serve as useful guidelines in actual deployment

Qiao, Daji

393

Endeavour Launch 3: The Trip of a Lifetime | GE Global Research  

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

the news, and the first thing I did was... smile. I don't know anything about Auxiliary Power Unit (APU) systems, but I quickly learned that the problem had something to do with a...

394

Microsecond carrier lifetimes in InGaAsP quantum wells emitting J. M. Smitha)  

E-Print Network [OSTI]

of St. Andrews, St. Andrews KY16 9SS, United Kingdom C. C. Buttonc) EPSRC III-V Central Facility less pronounced than in similar quantum-well structures measured previously. © 2002 American Institute solar cells which make maximum use of the solar spectrum. A large amount of work has been carried out

Buller, Gerald S.

395

Original Research Article First Birth Interval, An Indicator of Energetic Status, Is a Predictor of Lifetime  

E-Print Network [OSTI]

by a shorter waiting time to the first birth (first birth interval, FBI), are able to afford higher costs was divided into tertiles based on the length of FBI. Results: Women with the shortest FBI had a higher number.06). Women who had ever given birth to twins had shorter FBI than women of singletons (20.1 and 26.1 months

Lummaa, Virpi

396

PHYSICAL REVIEW B 88, 174102 (2013) Positron lifetime measurements of hydrogen passivation of cation vacancies  

E-Print Network [OSTI]

of cation vacancies in yttrium aluminum oxide garnets F. A. Selim,1,* C. R. Varney,1 M. C. Tarun,1 M. C; published 4 November 2013) A charge compensation mechanism is proposed for cation vacancy defects in complex trapping was detected in samples grown in H2. This is attributed to decoration of cation vacancies

McCluskey, Matthew

397

Accurate economic analysis of photovoltaic (PV) systems performance over the system lifetime requires knowledge  

E-Print Network [OSTI]

modules will work over long periods. Nine years of PV data at Ashland, Oregon are used to determine and meteorological measurements. 1. INTRODUCTION As the solar industry matures, more and more emphasis is being. The benefits, costs, and design of the feed-in tariffs require knowledge of system output over time. Second

Oregon, University of

398

THE LIFETIMES OF NITRILES (CN) AND ACIDS (COOH) DURING ULTRAVIOLET PHOTOLYSIS AND THEIR SURVIVAL IN SPACE  

E-Print Network [OSTI]

) versus acetonitrile (CH3CN) and glycine (H2NCH2COOH) versus aminoacetonitrile (H2NCH2CN). We findCOOH) versus acetonitrile (CH3CN) and glycine (H2NCH2COOH) versus amino- acetonitrile (H2NCH2CN). We

399

Enhanced oscillation lifetime of a Bose-Einstein condensate in the 3D/1D crossover  

E-Print Network [OSTI]

We have measured the damped motion of a trapped Bose-Einstein condensate, oscillating with respect to a thermal cloud. The cigar-shaped trapping potential provides enough transverse confinement that the dynamics of the system are intermediate between three-dimensional and one-dimensional. We find that oscillations persist for longer than expected for a three-dimensional gas. We attribute this to the suppressed occupation of transverse momentum states, which are essential for damping.

Yuen, B; Cotter, J P; Butler, E; Hinds, E A

2015-01-01T23:59:59.000Z

400

E-Print Network 3.0 - annihilation lifetime study Sample Search...  

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

C1, supplkment au Journal de Physique 111,Volume 5,janvier 1995 Summary: for transition metal carbides and nitrides. The quantities studied are the positron affinity and...

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


401

E-Print Network 3.0 - annihilation lifetime technique Sample...  

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

1995 Summary: Positron Annihilation Characteristics in Perfect and Imperfect Transition Metal Carbides and Nitrides M... kova 22, CZ-616 62 Bmo, CzechRepublic **PositronAnnihilatio...

402

Lifetime Reliability Assessment with Aging Information from Low-Level Sensors  

E-Print Network [OSTI]

. As a conse- quence, Dynamic Reliability Management (DRM) becomes an essential approach to assure IC sensors are designed to replicate the NBTI stress of a device in the critical paths (CPs) or potential critical paths (PCPs), such that the aging status (i.e., delay shift) of CPs and PCPs can be estimated from

Kuzmanov, Georgi

403

The Needs of a Lifetime: The Search for Security, 1865-1914  

E-Print Network [OSTI]

culture framework emphasizing individualized safety netssafety net had powerful resonance within the American culture,

Yang, Tony

2009-01-01T23:59:59.000Z

404

Lifetime Data Anal DOI 10.1007/s10985-013-9264-6  

E-Print Network [OSTI]

-mail: yili@umich.edu Y. Li Google Inc., Mountain View, CA94043, USA e-mail: yijiang@umich.edu 123 #12;K. He and an approximate EM algorithm for the logistic mixed effects model. We consider a re-sampling and simulation Arbor, MI 48109-2029, USA e-mail: kevinhe@umich.edu J. D. Kalbfleisch e-mail: jdkalbfl@umich.edu Y. Li e

Li, Yi

405

`LOW TEMPERATURE FOMBLIN' COATED ACCORDION-LIKE UCN STORAGE SYSTEM FOR NEUTRON LIFETIME EXPERIMENT  

E-Print Network [OSTI]

Island, Kingston, RI, USA; 3 Joint Institute for Nuclear Research, Dubna, Russia; 4 Institut Laue Temperature Fomblin', has been tested as a wall coating in an ultracold neutron (UCN) storage experiment using to n is made more reliable by the novel use of an accordion-like storage vessel. In this system

Steyerl, Albert

406

A Protocol for Lifetime Energy and Environmental Impact Assessment of Building Insulation Materials  

SciTech Connect (OSTI)

This article describes a proposed protocol that is intended to provide a comprehensive list of factors to be considered in evaluating the direct and indirect environmental impacts of building insulation materials, as well as detailed descriptions of standardized calculation methodologies to determine those impacts. The energy and environmental impacts of insulation materials can generally be divided into two categories: (1) direct impact due to the embodied energy of the insulation materials and other factors, and (2) indirect or environmental impacts avoided as a result of reduced building energy use due to addition of insulation. Standards and product category rules exist that provide guidelines about the life cycle assessment (LCA) of materials, including building insulation products. However, critical reviews have suggested that these standards fail to provide complete guidance to LCA studies and suffer from ambiguities regarding the determination of the environmental impacts of building insulation and other products. The focus of the assessment protocol described here is to identify all factors that contribute to the total energy and environmental impacts of different insulation products and, more importantly, provide standardized determination methods that will allow comparison of different insulation material types. Further, the intent is not to replace current LCA standards but to provide a well-defined, easy-to-use comparison method for insulation materials using existing LCA guidelines.

Shrestha, Som S [ORNL] [ORNL; Biswas, Kaushik [ORNL] [ORNL; Desjarlais, Andre Omer [ORNL] [ORNL

2014-01-01T23:59:59.000Z

407

Lifetime of Anthropogenic Climate Change: Millennial Time Scales of Potential CO2 and Surface Temperature Perturbations  

E-Print Network [OSTI]

). Earth system models can be used to simulate the ev- olution of the climate system under different anthro

Scherer, Norbert F.

408

Word learning in context : the role of lifetime language input and sentential context  

E-Print Network [OSTI]

with  human  word?learning  simulations  on  adults  that Human simulations of vocabulary  learning.  Cognition, 73(these  simulations  were  exploring  object  learning 

Borovsky, Arielle

2008-01-01T23:59:59.000Z

409

Percy Schmeiser has worn many hats in his lifetime: farmer, farm  

E-Print Network [OSTI]

illegally. Schmeiser countered that the seed had blown into his crops, contaminating his own breed of canola was found not to have benefitted financially from its canola seed. In 2008, an out of court settlement saw

Argerami, Martin

410

Source fabrication and lifetime for L+ ion beams extracted from alumino-silicate sources  

E-Print Network [OSTI]

silicates compounds ?-spodumene and ?-eucryptite [7–9] at1 (?-eucryptite) 0.02 (?-spodumene) 1.5 (?-eucryptite) 1 (?-

Greenway, W.G.

2012-01-01T23:59:59.000Z

411

Source fabrication and lifetime for Li+ ion beams extracted from alumino-silicate sources  

E-Print Network [OSTI]

silicates compounds ?-spodumene and ?-eucryptite [7–9] at1 (?-eucryptite) 0.02 (?-spodumene) 1.5 (?-eucryptite) 1 (?-

Roy, Prabir

2013-01-01T23:59:59.000Z

412

Source fabrication and lifetime for L+ ion beams extracted from alumino-silicate sources  

E-Print Network [OSTI]

of sintered alumino-silicate was about 0.25 mm, but not keptthe mass of alumino-silicate. This dis- crepancy suggestedextracted from alumino-silicate sources Prabir K. Roy, ?

Greenway, W.G.

2012-01-01T23:59:59.000Z

413

Source fabrication and lifetime for Li+ ion beams extracted from alumino-silicate sources  

E-Print Network [OSTI]

of amount of lithium alumino-silicate mass deposition on Themg, and 2.8 mg of alumino- silicate material deposited. [19]extracted from alumino-silicate sources Prabir K. Roy, ?

Roy, Prabir

2013-01-01T23:59:59.000Z

414

Lifetime Modelling of Fatigue Crack Initiation from Casting Defects M. Geuffrard1  

E-Print Network [OSTI]

methodology has been developed for defects occurring in turbine discs made from powder metallurgy nickel base results of such an investigation of the assessment of casting pores in aero-engine turbine blades procedure The material used in this investigation is AM1 Ni-based single crystal. Its composition is 7.8Cr

Boyer, Edmond

415

Differential of discounted present values of civilian versus military lifetime earnings  

E-Print Network [OSTI]

highest grade, (2) retention of commissary and post, exchange privilieges, (3) continued medical care for the retired officer and hi. family. ~rill require remuneration ahovc that oi it . civi'!. ; an counterpart. CHAPTER 2 THE MODEL Introduction... cash pays such as bonuses, incentive pay, and specialty pays (except hostile fire pay), as well as such fringe bene- fits as full medical services for the individual and his family, commissary, and Post Exchange privileges' To be more precise...

Phillips, Christian

2012-06-07T23:59:59.000Z

416

ORNL's Jack Fellows receives NCSE Lifetime Achievement Award | ornl.gov  

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

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

417

Superfluid Phase Transition of Long-lifetime Polaritons | MIT-Harvard  

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 ConchasPassiveSubmittedStatus TomAbout »Lab (NewportSuccess StoriesNERSC @Center for

418

Interconnect Lifetime Prediction under Dynamic Stress for Reliability-Aware Design  

E-Print Network [OSTI]

Huang, John Lach, Mircea Stan, Kevin Skadron§ Department of Electrical and Computer Engineering) techniques [13, 14] are being developed to best manage this consumption. While the dynamic temper- ature. Historically, Black [2] proposed a semi-empirical temper- ature-dependent model for EM failures: Tf = A jn exp

Skadron, Kevin

419

Modulation of DNA loop lifetimes by the free energy of loop formation  

E-Print Network [OSTI]

Storage and retrieval of the genetic information in cells is a dynamic process that requires the DNA to undergo dramatic structural rearrangements. DNA looping is a prominent example of such a structural rearrangement that is essential for transcriptional regulation in both prokaryotes and eukaryotes, and the speed of such regulations affects the fitness of individuals. Here, we examine the in vitro looping dynamics of the classic Lac repressor gene-regulatory motif. We show that both loop association and loop dissociation at the DNA-repressor junctions depend on the elastic deformation of the DNA and protein, and that both looping and unlooping rates approximately scale with the looping J factor, which reflects the system's deformation free energy. We explain this observation by transition state theory and model the DNA-protein complex as an effective worm-like chain with twist. We introduce a finite protein-DNA binding interaction length, in competition with the characteristic DNA deformation length scale, ...

Chen, Yi-Ju; Mulligan, Peter; Spakowitz, Andrew J; Phillips, Rob

2015-01-01T23:59:59.000Z

420

SciTech Connect: Prediction of the Creep-Fatigue Lifetime of...  

Office of Scientific and Technical Information (OSTI)

approach would be relevant to calculate the remaining useful life to a component like a steam generator that might fail by the creep-fatigue mechanism. Authors: Vivek Agarwal;...

Note: This page contains sample records for the topic "lifetime low-e double-pane" 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

High Performance Window Retrofit  

SciTech Connect (OSTI)

The US Department of Energy (DOE) Office of Energy Efficiency and Renewable Energy (EERE) and Traco partnered to develop high-performance windows for commercial building that are cost-effective. The main performance requirement for these windows was that they needed to have an R-value of at least 5 ft2 F h/Btu. This project seeks to quantify the potential energy savings from installing these windows in commercial buildings that are at least 20 years old. To this end, we are conducting evaluations at a two-story test facility that is representative of a commercial building from the 1980s, and are gathering measurements on the performance of its windows before and after double-pane, clear-glazed units are upgraded with R5 windows. Additionally, we will use these data to calibrate EnergyPlus models that we will allow us to extrapolate results to other climates. Findings from this project will provide empirical data on the benefits from high-performance windows, which will help promote their adoption in new and existing commercial buildings. This report describes the experimental setup, and includes some of the field and simulation results.

Shrestha, Som S [ORNL; Hun, Diana E [ORNL; Desjarlais, Andre Omer [ORNL

2013-12-01T23:59:59.000Z

422

Energy savings opportunity survey, Fort Bliss, Texas. Executive summary  

SciTech Connect (OSTI)

This Energy Savings Opportunity Survey (ESOS) at Ft. Bliss Texas was prepared by Engineering Design Management, Inc., St. Louis, MO., under contract with the Department of the Army, Fort Worth District, Corps of Engineers. In summary, the ESOS can be divided into six essentially separate studies. These are: (1) Re-evaluate previous ECIP on family housing ceiling insulation. (2) Examine 60 to 400 Hz converters for opportunities to reduce utility costs. Review includes examination of alternative technologies, as well as optional utilization of existing stock. (3) Examine the possibility of adding additional storage to potable water system to allow pumping during `off peak` hours as defined by local utility. Savings will occur as demand savings. (4) Study three `typical` buildings on base for savings due to fenestration improvements. These improvements include exterior shading, double pane glazing, reflective films, and window area reduction. (5) Evaluate the feasibility of down-sizing existing transformers and/or connecting additional load to improve transformer utilization and reduce transformer core energy losses. (6) Evaluate the feasibility of implementing several common ECOs at the base. These ECOs include wall and roof insulation, timeclocks, etc.

NONE

1986-12-31T23:59:59.000Z

423

Technical support document for proposed 1994 revision of the MEC thermal envelope requirements  

SciTech Connect (OSTI)

This report documents the development of the proposed revision of the Council of American Building Officials` (CABO) 1994 supplement to the 1993 Model Energy Code (MEC) building thermal envelope requirements for maximum component U{sub 0}-value. The 1994 amendments to the 1993 MEC were established in last year`s code change cycle and did not change the envelope requirements. The research underlying the proposed MEC revision was conducted by Pacific Northwest Laboratory (PNL) for the US Department of Energy (DOE) Building Energy Standards program. The goal of this research was to develop revised guidelines based on an objective methodology that determines the most cost-effective (least total cost) combination of energy conservation measures (ECMs) (insulation levels and window types) for residential buildings. This least-cost set of ECMs was used as a basis for proposing revised MEC maximum U{sub 0}-values (thermal transmittances). ECMs include window types (for example, double-pane vinyl) and insulation levels (for example, R-19) for ceilings, walls, and floors.

Conner, C.C.; Lucas, R.G.

1994-03-01T23:59:59.000Z

424

Energy Efficiency Upgrades  

SciTech Connect (OSTI)

The energy efficiency upgrades project at Hardin County General Hospital did not include research nor was it a demonstration project. The project enabled the hospital to replace outdated systems with modern efficient models. Hardin County General Hospital is a 501c3, nonprofit hospital and the sole community provider for Hardin and Pope Counties of Illinois. This project provided much needed equipment and facility upgrades that would not have been possible through locally generated funding. Task 1 was a reroofing of the hospital. The hospital architect designed the replacement to increase the energy efficiency of the hospital roof/ceiling structure. Task 2 was replacement and installation of a new more efficient CT scanner for the hospital. Included in the project was replacement of HVAC equipment for the entire radiological suite. Task 5 was a replacement and installation of a new higher capacity diesel-fueled emergency generator for the hospital replacing a 50+ year old gas-fired generator. Task 7 was the replacement of 50+ year-old walk-in cooler/freezer with a newer, energy efficient model. Task 8 was the replacement of 10+ year-old washing machines in the hospital laundry with higher capacity, energy efficient models. Task 9 was replacement of 50-year old single pane curtain window system with double-pane insulated windows. Additionally, insulation was added around ventilation systems and the curtain wall system.

Roby Williams

2012-03-29T23:59:59.000Z

425

The lifetime of shape oscillations of a bubble in an unbounded, inviscid and compressible fluid with surface tension  

E-Print Network [OSTI]

General perturbations of a spherical gas bubble in a compressible and inviscid fluid with surface tension were proved in Shapiro and Weinstein (2011), in the linearized approximation, to decay exponentially, $\\sim e^{-\\Gamma t}, \\Gamma>0$, as time advances. Formal asymptotic and numerical evidence led to the conjecture that $\\Gamma \\approx \\frac{A}{\\epsilon} \\frac{We}{\\epsilon^{2}} \\exp(-B \\frac{We}{\\epsilon^2})$, where $0<\\epsilon\\ll1$ is the Mach number, We is the Weber number, and $A$ and $B$ are positive constants. In this paper, we prove this conjecture and calculate $A$ and $B$ to leading order in $\\epsilon$.

Ovidiu Costin; Saleh Tanveer; Michael I. Weinstein

2012-10-01T23:59:59.000Z

426

On the relation between quantum lifetimes and classical stability for the systems with a saddle-type potential  

SciTech Connect (OSTI)

Relations between quantum-mechanical and classical properties of open systems with a saddle-type potential, for which at a given energy only one unstable periodic orbit exists, are studied. By considering the convergence of the Gutzwiller trace formula [J. Math. Phys. 12, 343 (1971)] it is confirmed that both for homogeneous and inhomogeneous potentials the poles of the formula are located below the real energy axis, i.e., these kind of potentials do not support bound states, in general. Within the harmonic approximation the widths of resonant (transition) states are proportional to the values of Lyapunov exponent of the single periodic orbit calculated at the energies which are equal to the resonance positions. The accuracy of the semiclassical relation is discussed and demonstrated for several examples.

Simonovic, N.S. [Institute of Physics, P.O. Box 57, 11001 Belgrade (Serbia and Montenegro)

2006-01-07T23:59:59.000Z

427

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

SciTech Connect (OSTI)

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

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

2014-03-14T23:59:59.000Z

428

Fluorescent Probe Solubilization in the Headgroup and Core Regions of Micelles: Fluorescence Lifetime and Orientational Relaxation Measurements  

E-Print Network [OSTI]

the microheterogeneous medium under investigation. To ascertain that the probe is located in the target environment in the hydrocarbon core region of the micelle. In this environment the chromophores have a considerably longer to be applied successfully, the fluorescent molecule must be tailored to probe the desired environment within

Fayer, Michael D.

429

OXIDE / LPCVD NITRIDE STACKS ON SILICON: THE EFFECTS OF HIGH TEMPERATURE TREATMENTS ON BULK LIFETIME AND ON SURFACE PASSIVATION.  

E-Print Network [OSTI]

phosphorous diffusion (830°C for 30 minutes R[ ~800-1000/[#12; D WKHUPDOO\\ JURZQ R[LGH °C or 1100°C

430

The reduction of minority carrier lifetimes in silicon devices by gold doping as influenced by conditions encountered in their production  

E-Print Network [OSTI]

hot, concer, trated HF, H SO, p and HHO ~ Various amounts 2 4' 3 of gold ccere deposited on the waf'ers f' or diffusion, the maximum single deposition being a film 710L thick, the cuinizum being 10, '. . It, was ant' cipated that no diff...

Larkin, James Buford

1967-01-01T23:59:59.000Z

431

Exploiting Process Lifetime Distributions for Dynamic Load Balancing Mor HarcholBalter \\Lambda Allen B. Downey y  

E-Print Network [OSTI]

number CCR­9201092. y Partially supported by NSF (DARA) grant DMW­8919074. of processes and improve

Downey, Allen B.

432

Algorithms for Fluorescence Lifetime Microscopy and Optical Coherence Tomography Data Analysis: Applications for Diagnosis of Atherosclerosis and Oral Cancer  

E-Print Network [OSTI]

imaging (FLIM) with optical coherence tomography (OCT), for the diagnosis of atherosclerosis and oral cancer. FLIM is a fluorescence imaging technique that is capable of providing information about auto fluorescent tissue biomolecules. OCT on the other...

Pande, Paritosh

2014-05-16T23:59:59.000Z

433

Correlations of Capacitance-Voltage Hysteresis with Thin-Film CdTe Solar Cell Performance During Accelerated Lifetime Testing  

SciTech Connect (OSTI)

In this paper we present the correlation of CdTe solar cell performance with capacitance-voltage hysteresis, defined presently as the difference in capacitance measured at zero-volt bias when collecting such data with different pre-measurement bias conditions. These correlations were obtained on CdTe cells stressed under conditions of 1-sun illumination, open-circuit bias, and an acceleration temperature of approximately 100 degrees C.

Albin, D.; del Cueto, J.

2011-03-01T23:59:59.000Z

434

Excited-Level Lifetimes and Hyperfine-Structure Measurements on Ions using Collinear Laser Ion-Beam Spectroscopy  

E-Print Network [OSTI]

resolve isotopic beams of Ca+ or Cl+. However, each isotopic mass had a different velocity, and hence Doppler shift, following subsequent acceleration to and within the DSS. Consequently ion isotopes other than the dominant iso- tope had significantly...

Jin, J.; Church, David A.

1994-01-01T23:59:59.000Z

435

Abstract--Bias temperature instability, hot-carrier injection, and gate-oxide wearout will cause severe lifetime degradation in  

E-Print Network [OSTI]

Abstract--Bias temperature instability, hot-carrier injection, and gate-oxide wearout will cause mechanisms are bias temperature instability (BTI) [1] and hot-carrier injection (HCI) [2], both of which can is compounded by thermal feedback, since active devices located at die hot spots operate at an elevated

Lipasti, Mikko H.

436

In Search of Future Earths: Assessing the possibility of finding Earth analogues in the later stages of their habitable lifetimes  

E-Print Network [OSTI]

Earth will become uninhabitable within 2-3 Gyr as a result of the moving boundaries of the habitable zone caused by the increasing luminosity of the Sun. Predictions about the future of habitable conditions on Earth include a decline in species diversity and habitat extent, ocean loss and changes in the magnitudes of geochemical cycles. However, testing these predictions on the present-day Earth is difficult. The discovery of a planet that is a near analogue to the far future Earth could provide a means to test these predictions. Such a planet would need to have an Earth-like biosphere history, requiring it to have been in its system's habitable zone (HZ) for Gyr-long periods during the system's past, and to be approaching the inner-edge of the HZ at present. Here we assess the possibility of finding this very specific type of exoplanet and discuss the benefits of analysing older Earths in terms of improving our understanding of long-term geological and bio-geological processes. As an illustrative example, G ...

O'Malley-James, J T; Raven, J A; Cockell, C S

2015-01-01T23:59:59.000Z

437

A Method for Evaluating the Distribution of the Total Cost of a Random Process over its Lifetime  

E-Print Network [OSTI]

, Australia (pkp@maths.uq.edu.au) b Department of Mathematics and Statistics, The University of Western Australia, Crawley Western Australia 6009, Australia (stefanov@maths.uwa.edu.au) Abstract: For a random

Pollett, Phil

438

Submillimeter Galaxies at z~2: Evidence for Major Mergers & Constraints on Lifetimes, IMF and CO-H2 Conversion Factor  

E-Print Network [OSTI]

We report sub-arcsecond resolution IRAM PdBI millimeter CO interferometry of four z~2 submillimeter galaxies (SMGs), and sensitive CO (3-2) flux limits toward three z~2 UV-/optically selected star forming galaxies. The new data reveal for the first time spatially resolved CO gas kinematics in the observed SMGs. Two of the SMGs show double or multiple morphologies, with complex, disturbed gas motions. The other two SMGs exhibit CO velocity gradients of ~500 km/s across 0.2 arcsec (1.6 kpc) diameter regions, suggesting that the star forming gas is in compact, rotating disks. Our data provide compelling evidence that these SMGs represent extreme, short-lived 'maximum' star forming events in highly dissipative mergers of gas rich galaxies. The resulting high mass surface and volume densities of SMGs are similar to those of compact quiescent galaxies in the same redshift range, and much higher than those in local spheroids. From the ratio of the comoving volume densities of SMGs and quiescent galaxies in the same mass and redshift ranges, and from the comparison of gas exhaustion time scales and stellar ages, we estimate that the SMG phase duration is about 100 Myrs. Our analysis of SMGs and optically/UV selected high redshift star forming galaxies supports a 'universal' Chabrier IMF as being valid over the star forming history of these galaxies. We find that the 12CO luminosity to total gas mass conversion factors at z~2-3 are probably similar to those assumed at z~0. The implied gas fractions in our sample galaxies range from 20 to 50%.

L. J. Tacconi; R. Genzel; I. Smail; R. Neri; S. C. Chapman; R. J. Ivison; A. Blain; P. Cox; A. Omont; F. Bertoldi; T. Greve; N. M. Foerster Schreiber; S. Genel; D. Lutz; A. M. Swinbank; A. E. Shapley; D. K. Erb; A. Cimatti; E. Daddi; A. J. Baker

2008-01-23T23:59:59.000Z

439

Global analysis of Fo rster resonance energy transfer in live cells measured by fluorescence lifetime imaging microscopy exploiting  

E-Print Network [OSTI]

Global analysis of Fo¨ rster resonance energy transfer in live cells measured by fluorescence of Fo¨ rster resonance energy transfer (FRET) in live cells using the rise time of acceptor fluorescence those molecules that are involved in the energy-transfer process are monitored. This contrasts

van Stokkum, Ivo

440

Weaving time into system architecture : new perspectives on flexibility, spacecraft design lifetime, and on-orbit servicing  

E-Print Network [OSTI]

A roadmap for a comprehensive treatment of issues of flexibility in system design is developed that addresses the following questions: 1) What are the characteristic features of flexibility in system design? Can one clearly ...

Saleh, Joseph Homer, 1971-

2002-01-01T23:59:59.000Z

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


441

NEUTRON LIFETIME EXPERIMENT BASED ON AN `ACCORDION-LIKE' UCN STORAGE VOLUME COATED WITH `LOW TEMPERATURE FOMBLIN'  

E-Print Network [OSTI]

, Cambridge, MA, USA; 2 University of Rhode Island, Kingston, RI, USA; 3 Joint Institute for Nuclear Research-fluorinated polymer, `Low Temperature Fomblin', has been tested as a wall coating in an ultracold neutron (UCN of an accordion-like storage vessel. In this system, the surface area and its distribution over height remain

Steyerl, Albert

442

Microelectronics Reliability, Vol. 51, pp. 392-399, 2011 Forecasting electronic part procurement lifetimes to enable the  

E-Print Network [OSTI]

and power grid management, industrial equipment, and medical equipment. These product sectors often "lag and very expensive qualification/certification cycles may be required even for minor design changes

Sandborn, Peter

443

Mechanical Properties of Aerogels. Final Report  

SciTech Connect (OSTI)

Aerogels are extremely low density solids that are characterized by a high porosity and pore sizes on the order of nanometers. Their low thermal conductivity and sometimes transparent appearance make them desirable for applications such as insulation in cryogenic vessels and between double paned glass in solar architecture. An understanding of the mechanical properties of aerogels is necessary before aerogels can be used in load bearing applications. In the present study, the mechanical behavior of various types of fiber-reinforced silica aerogels was investigated with hardness, compression, tension and shear tests. Particular attention was paid to the effects of processing parameters, testing conditions, storage environment, and age on the aerogels` mechanical response. The results indicate that the addition of fibers to the aerogel matrix generally resulted in softer, weaker materials with smaller elastic moduli. Furthermore, the testing environment significantly affected compression results. Tests in ethanol show an appreciable amount of scatter, and are not consistent with results for tests in air. In fact, the compression specimens appeared to crack and begin to dissolve upon exposure to the ethanol solution. This is consistent with the inherent hydrophobic nature of these aerogels. In addition, the aging process affected the aerogels` mechanical behavior by increasing their compressive strength and elastic moduli while decreasing their strain at fracture. However, desiccation of the specimens did not appreciably affect the mechanical properties, even though it reduced the aerogel density by removing trapped moisture. Finally, tension and shear test results indicate that the shear strength of the aerogels exceeds the tensile strength. This is consistent with the response of brittle materials. Future work should concentrate on mechanical testing at cryogenic temperatures, and should involve more extensive tensile tests.

Parmenter, K.E.; Milstein, F.

1995-01-01T23:59:59.000Z

444

European Photovoltaic Solar Energy Conference, Valencia, Spain, 6-10 September 2010, 2DO.1.6 BULK LIFETIME ENHANCEMENT BY FIRING STEPS  

E-Print Network [OSTI]

25th European Photovoltaic Solar Energy Conference, Valencia, Spain, 6-10 September 2010, 2DO.1.6 1 to getter metallic impurities and firing of silicon nitride (SiN) to induce hydrogen passivation. We analyse impurities and hydrogen bulk passivation, respectively. Additionally, the fired SiN layers have to ensure

445

Collinear Laser-Beam Ion-Beam Measurement of the Mean Lifetime of the Ar Ii 4p'2f-Degrees-7/2 Level  

E-Print Network [OSTI]

in part with support from the National Science Foundation. [1]W. R. Johnson, M. Idrees, and J. Sapirstein, Phys. Rev. A 35, 3218 (1987). [2] A. Hibbert and J. E. Hansen, J. Phys. B 22, L347 (1989). [3] A. Gaupp, P. Kuske, and H. J. Andra, Phys. Rev. A...

Jin, J.; Church, David A.

1993-01-01T23:59:59.000Z

446

", Mat. Res. Soc. Symp. Proc., vol. 974E, pp0974-CC06-01 ff. Exciton Lifetime in PbS Quantum Dots in Glass  

E-Print Network [OSTI]

in Glass Peter D Persans, A. Filin, N. E. Berry, F. Huang, and E. Chan Physics Department, Rensselaer

Persans, Peter D.

447

Populations and lifetimes in the $v=n-l-1=2$ and 3 metastable cascades of $\\overline{p} He^{+}$ measured by pulsed and continuous antiproton beams  

E-Print Network [OSTI]

Using the laser spectroscopy, the time evolution of the state population in the v equivalent n-l=2 and 3 metastable cascades of antiprotonic helium atoms were studied. The effects of the collision between antiprotonic helium and the ordinary helium atoms on the atomic cascade were also analyzed. The measurements were done using the pulsed and continuous types of antiproton beams supplied by the Low Energy Antiproton Ring. The studies revealed five phases in the life history of the metastable antiprotonic helium. (Edited abstract) 71 Refs.

Hori, Masaki; Widmann, E; Yamazaki, T; Hayano, R S; Ishikawa, T; Torie, H A; Von Egidy, T; Hartmann, F; Ketzer, B; Maierl, C; Pohl, R; Kumakura, M; Morita, N; Horváth, D; Sugai, I

2004-01-01T23:59:59.000Z

448

2005 Conference on Information Sciences and Systems, The Johns Hopkins University, March 1618, 2005 Maximizing the Lifetime of Sensor Network Using  

E-Print Network [OSTI]

Energy Yunxia Chen and Qing Zhao Department of Electrical and Computer Engineering University and the average wasted energy, we propose a new distributed transmission scheme which utilizes the local sensors, each powered by a battery with Ein initial energy. Without loss of gener- ality, we assume

Islam, M. Saif

449

The analysis of cracks in high-pressure piping and their effects on strength and lifetime of construction components at the Ignalina nuclear plant  

SciTech Connect (OSTI)

A number of cracks and damages of other sorts have been identified in the high-pressure parts at the Ignalina Nuclear Plant. They are caused by inadequate production- and repair technologies, as well as by thermal, chemical and mechanical processes of their performance. Several techniques are available as predictions of cracks and other defects of pressurized vessels. The choice of an experimental technique should be based on the level of its agreement with the actual processes.

Aleev, A.; Petkevicius, K.; Senkus, V. [and others

1997-04-01T23:59:59.000Z

450

Analysis and Optimization of a Lifetime Fluorescence System to Detect Structural Protein Signatures in Varying Host Mediums for Rapid Biomedical Imaging  

E-Print Network [OSTI]

40 Figure 23. Phosphorous layer behavior; Left: Glow due tozone of the electron beam on the phosphorous, without thecontour plot of the phosphorous impact zone, the spread of

Papour, Asael

2012-01-01T23:59:59.000Z

451

Investigations into Performance and Lifetime Enhancements of OPV Devices: Cooperative Research and Development Final Report, CRADA Number CRD-08-263  

SciTech Connect (OSTI)

To evaluate Plextronics new additives and derivatives in lithium-ion Battery Applications, Plextronics will provide to NREL, a starting point, including materials and initial data for proof of concept. The central focus of this project is to acertain the nature of the efficacy of the Plextronics additives through physical and electrical characterization, including evaluations of new derivatives, system evaluations on batteries made with Plexcore and to study long term cycling performance differences. The initial focus is to establish Plexcore mode of action to support the commercialization of the first commercial evaluations of Plexcore in Sept. 2013.

Ginley, D.

2014-06-01T23:59:59.000Z

452

Ion irradiation damage in k-doped silica probed by the Er3+ luminescence lifetime at 1.535 pm4  

E-Print Network [OSTI]

irradiation.' Furthermore, silica-basedop- tical fibers are the standard in telecommunicationtechnol- ogy the effectof MeV ion irradiation damage on the optical propertiesof Er-doped silica films is studied. Erbium-doped silica glasshas recently attracted attention becauseof its use in optical fiber amplifiers.5'6Erbium

Polman, Albert

453

Decoupling bulk- and surface-limited lifetimes in thin kerfless silicon wafers using spectrally resolved transient absorption pump-probe spectroscopy and computer simulations  

E-Print Network [OSTI]

One of the key technological objectives to further decrease the cost of silicon (Si) PV and enable manufacturing of crystalline silicon is to improve the quality of thin, kerfless Si wafers to monocrystalline equivalent. ...

Siah, Sin Cheng

2013-01-01T23:59:59.000Z

454

Carrier lifetime reduction in 1.5 m AlGaAsSb saturable absorbers with air and AlAsSb barriers  

E-Print Network [OSTI]

The SESAM structures consist of a 60-period InGaAsP/InP distributed Bragg reflector DBR and a 7-nm-thick Al exponential carrier decay time of 20 ps can be achieved. The studied AlGaAsSb absorbers were deposited on InGaAsP depth, the saturation fluence, the inverse absorption, the nonsaturable absorption, and the carrier de

Keller, Ursula

455

How to calculate linear absorption spectra with lifetime broadening using fewest switches surface hopping trajectories: A simple generalization of ground-state Kubo theory  

SciTech Connect (OSTI)

In this paper, we develop a surface hopping approach for calculating linear absorption spectra using ensembles of classical trajectories propagated on both the ground and excited potential energy surfaces. We demonstrate that our method allows the dipole-dipole correlation function to be determined exactly for the model problem of two shifted, uncoupled harmonic potentials with the same harmonic frequency. For systems where nonadiabatic dynamics and electronic relaxation are present, preliminary results show that our method produces spectra in better agreement with the results of exact quantum dynamics calculations than spectra obtained using the standard ground-state Kubo formalism. As such, our proposed surface hopping approach should find immediate use for modeling condensed phase spectra, especially for expensive calculations using ab initio potential energy surfaces.

Petit, Andrew S.; Subotnik, Joseph E. [Department of Chemistry, University of Pennsylvania, 231 S. 34th Street, Philadelphia, Pennsylvania 19104 (United States)

2014-07-07T23:59:59.000Z

456

PV String to 3-Phase Inverter with Highest Voltage Capabilities, Highest Efficiency and 25 Year Lifetime: Final Technical Report, November 7, 2011 - November 6, 2012  

SciTech Connect (OSTI)

Final report for Renewable Power Conversion. The overall objective of this project was to develop a prototype PV inverter which enables a new utility-scale PV system approach where the cost, performance, reliability and safety benefits of this new approach have the potential to make all others obsolete.

West, R.

2012-12-01T23:59:59.000Z

457

Radiation Risk from Chronic Low Dose-Rate Radiation Exposures: The Role of Life-Time Animal Studies - Workshop October 2005  

SciTech Connect (OSTI)

As a part of Radiation research conference, a workshop was held on life-long exposure studies conducted in the course of irradiation experiements done at Argonne National Laboratory between 1952-1992. A recent review article documents many of the issues discussed at that workshop.

Gayle Woloschak

2009-12-16T23:59:59.000Z

458

Chromated copper arsenate (CCA) has been used to treat lumber for over 60 years (1),owing to the extended lifetime of CCA-trea  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: Vegetation Proposed New Substation SitesStandingtheirCheck InChemistryChrisChristineNews Press5 Chemical

459

Analysis and Optimization of a Lifetime Fluorescence System to Detect Structural Protein Signatures in Varying Host Mediums for Rapid Biomedical Imaging  

E-Print Network [OSTI]

linear profile. As in many LED driver circuits, an auxiliary pulse generatorLinear Decay Illumination Pulse Shaping Using Delay Line Feedback: A Light Emitting Diode (LED) illumination circuit connected to a pulse generator

Papour, Asael

2012-01-01T23:59:59.000Z

460

Pauli spin blockade and lifetime-enhanced transport in a Si/SiGe double quantum dot C. B. Simmons,1  

E-Print Network [OSTI]

relatively small atomic mass. Isotopic purification could produce devices with excellent qualities electrostatic gating, long coherence times, and well-known methods for large-scale fabrication.1­5 Spin isotope has nuclear spin zero, and because Si has a relatively small spin- orbit coupling, because of its

Coppersmith, Susan N.

Note: This page contains sample records for the topic "lifetime low-e double-pane" 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

A resonance-fluorescence measurement of the lifetime of the 1.013 MeV level in ²?Al using Compton-scattered gamma rays  

E-Print Network [OSTI]

:; 0"". ;. ;. i F V. l'i~ 'i:1. '! VR'-'"" 6-" 8 4 g / 5 Q3': 86 f: 4" ""'8 t:!" ~ %" '-" 8 Z ' '!'. :. ~', l (' -'&);; ", y ge & p g ja ~y-. g~~~)", $y P tt". "I i!J ':ii:itS S !" QSC ", '*O' "" OI ts'". PGt'I "t f f S!. S i C h ' CO ISDVCS SVO... "88888 f t)' O 888 L&SSTA 84 Eb8 81881K. "li9 SOS' 898188 88818 27 ' !i888888 O S8i85 Gf EKQ CQPPSX COKiP COD 8C8 8 88. f8~8 888l8 g;1. 25 RSS88888 i 8HG 818 CS 548 88888188 Of h8 18C3 i. SiSi 88tl 08 CSOSLk~S P~GKKk9 X'BJS fOX' 548 Sj. QZ18f"m SOC1...

Peticolas, John Davis

1967-01-01T23:59:59.000Z

462

Side-by-Side Field Evaluation of Highly Insulating Windows in the PNNL Lab Homes  

SciTech Connect (OSTI)

To examine the energy, air leakage, and thermal performance of highly insulating windows, a field evaluation was undertaken in a matched pair of all-electric, factory-built “Lab Homes” located on the Pacific Northwest National Laboratory (PNNL) campus in Richland, Washington. The “baseline” Lab Home B was retrofitted with “standard” double-pane clear aluminum-frame slider windows and patio doors, while the “experimental” Lab Home A was retrofitted with Jeld-Wen® triple-pane vinyl-frame slider windows and patio doors with a U-factor of 0.2 and solar heat gain coefficient of 0.19. To assess the window, the building shell air leakage, energy use, and interior temperatures of each home were compared during the 2012 winter heating and summer cooling seasons. The measured energy savings in Lab Home B averaged 5,821 watt-hours per day (Wh/day) during the heating season and 6,518 Wh/day during the cooling season. The overall whole-house energy savings of Lab Home B compared to Lab Home A are 11.6% ± 1.53% for the heating season and 18.4 ± 2.06% for the cooling season for identical occupancy conditions with no window coverings deployed. Extrapolating these energy savings numbers based on typical average heating degree days and cooling degree days per year yields an estimated annual energy savings of 12.2%, or 1,784 kWh/yr. The data suggest that highly insulating windows are an effective energy-saving measure that should be considered for high-performance new homes and in existing retrofits. However, the cost effectiveness of the measure, as determined by the simple payback period, suggests that highly insulating window costs continue to make windows difficult to justify on a cost basis alone. Additional reductions in costs via improvements in manufacturing and/or market penetration that continue to drive down costs will make highly insulating windows much more viable as a cost-effective energy efficiency measure. This study also illustrates that highly insulating windows have important impacts on peak load, occupant comfort, and condensation potential, which are not captured in the energy savings calculation. More consistent and uniform interior temperature distributions suggest that highly insulated windows, as part of a high performance building envelope, may enable more centralized duct design and downsized HVAC systems. Shorter, more centralized duct systems and smaller HVAC systems to yield additional cost savings, making highly insulating windows more cost effective as part of a package of new construction or retrofit measures which achieve significant reductions in home energy use.

Widder, Sarah H.; Parker, Graham B.; Baechler, Michael C.; Bauman, Nathan N.

2012-08-01T23:59:59.000Z

463

E-Print Network 3.0 - adjusted functional principal Sample Search...  

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

Report "Recommended Detector Lifetime Adjustments" Summary: Technical Evaluation Report "Recommended Detector Lifetime Adjustments" Date: July 16, 1999... Principal...

464

Glazing materials for solar and architectural applications. Final report  

SciTech Connect (OSTI)

This report summarizes five collaborative research projects on glazings performed by participants in Subtask C of IEA Solar Heating and Cooling Programme (SHC) Task 10, Materials Research and Testing. The projects include materials characterization, optical and thermal measurements, and durability testing of several types of new glazings Three studies were completed on electrochromic and dispersed liquid crystals for smart windows, and two were completed for low-E coatings and transparent insulation materials for more conventional window and wall applications. In the area of optical switching materials for smart windows, the group developed more uniform characterization parameters that are useful to determine lifetime and performance of electrochromics. The detailed optical properties of an Asahi (Japan) prototype electrochromic window were measured in several laboratories. A one square meter array of prototype devices was tested outdoors and demonstrated significant cooling savings compared to tinted static glazing. Three dispersed liquid crystal window devices from Taliq (USA) were evaluated. In the off state, these liquid crystal windows scatter light greatly. When a voltage of about 100 V ac is applied, these windows become transparent. Undyed devices reduce total visible light transmittance by only .25 when switched, but this can be increased to .50 with the use of dyed liquid crystals. A wide range of solar-optical and emittance measurements were made on low-E coated glass and plastic. Samples of pyrolytic tin oxide from Ford glass (USA) and multilayer metal-dielectric coatings from Interpane (Germany) and Southwall (USA) were evaluated. In addition to optical characterization, the samples were exposure-tested in Switzerland. The thermal and optimal properties of two different types of transparent insulation materials were measured.

Lampert, C.M. [ed.

1994-09-01T23:59:59.000Z

465

Search for CPT Violation with the FOCUS Experiment and Measurement of Lambda(b) lifetime in the decay Lambda(b) --> J / psi Lambda with the D0 Experiment  

SciTech Connect (OSTI)

This dissertation describes two different projects from two different experiments. We have performed a search for CPT violation in neutral charm meson oscillations using data from the FOCUS Experiment. While flavor mixing in the charm sector is predicted to be small in the Standard Model, it is still possible to investigate CPT violation through a study of the proper time dependence of a CPT asymmetry in right-sign decay rates for D{sup 0} {yields} K{sup -} {pi}{sup +} and {bar D}{sup 0} {yields} K{sup +}{pi}{sup -}. This asymmetry is related to the CPT violating complex parameter {xi} and the mixing parameters x and y: A{sub CPT} {infinity} Re{xi}y - Im{xi}x. We determine a 95% confidence level limit of -0.0068 < Re{xi}y - Im{xi}x < 0.0234. Within the framework of the Standard Model Extension incorporating general CPT violation, we also find 95% confidence level limits for the expressions involving coefficients of Lorentz violation of (-2.8 < N(x,y,{delta}))({Delta}a{sub 0} + 0.6 {Delta}a{sub Z} < 4.8) x 10{sup -16} GeV, (-7.0 < N(x,y,{delta}){Delta}a{sub x} < 3.8) x 10{sup -16} GeV, and (-7.0 < N(x,y,{delta}){Delta}a{sub y} < 3.8) x 10{sup -16} GeV, where N(x,y,{delta}) is a normalization factor that incorporates mixing parameters x, y and the doubly Cabibbo suppressed to Cabibbo favored relative strong phase {delta}.

Kryemadhi, Abaz; /Indiana U.; ,

2004-12-01T23:59:59.000Z

466

Intermittency and Lifetime of the 625 Hz QPO in the 2004 Hyperflare from the Magnetar SGR 1806-20 as evidence for magnetic coupling between the crust and the core  

E-Print Network [OSTI]

Quasi-periodic oscillations (QPOs) detected in the 2004 giant flare from SGR 1806-20 are often interpreted as global magneto-elastic oscillations of the neutron star. There is, however, a large discrepancy between theoretical models, which predict that the highest frequency oscillations should die out rapidly, and the observations, which suggested that the highest-frequency signals persisted for ~100s in X-ray data from two different spacecraft. This discrepancy is particularly important for the high-frequency QPO at ~625 Hz. However, previous analyses did not systematically test whether the signal could also be there in much shorter data segments, more consistent with the theoretical predictions. Here, we test for the presence of the high-frequency QPO at 625 Hz in data from both the Rossi X-ray Timing Explorer (RXTE) and the Ramaty High Energy Solar Spectroscopic Imager (RHESSI) systematically both in individual rotational cycles of the neutron star, as well as averaged over multiple successive rotational c...

Huppenkothen, Daniela; Levin, Yuri

2014-01-01T23:59:59.000Z

467

Lifetime and hyper ne structure of the 3 D 2 state of radium Jacek Biero n, 1, 4 Charlotte Froese Fischer, 2 Stephan Fritzsche, 3 and Krzysztof Pachucki 4  

E-Print Network [OSTI]

for a particular atomic state ( PJM) = NCF X r c r #8;( r PJM) (1) is obtained as the self-consistent solution

Pachucki, Krzysztof

468

C10 978-4-86348-348-4 2013 Symposium on VLSI Circuits Digest of Technical Papers A 100-fps Fluorescence Lifetime Imager in Standard 0.13-m CMOS  

E-Print Network [OSTI]

.13 µm process, with major functional blocks highlighted. A phase-locked loop (PLL) is used to generate of a fluorophore's emission intensity following a pulsed excitation. This decay rate is closely linked pixels share a single delay- locked loop (DLL), resulting in 32 DLLs on the chip. Each DLL is accompanied

Shepard, Kenneth

469

Development of New Absorber Materials to Achieve Organic Photovoltaic Commercial Modules with 15% Efficiency and 20 Years Lifetime: Cooperative Research and Development Final Report, CRADA Number CRD-12-498  

SciTech Connect (OSTI)

Under this CRADA the parties will develop intermediates or materials that can be employed as the active layer in dye sensitized solar cells printed polymer systems, or small molecule organic photovoltaics.

Olson, D.

2014-08-01T23:59:59.000Z

470

Redesigning Process Cooling Systems in the Plastics Industry  

E-Print Network [OSTI]

towers during the winter. Lifetime’s electric provider, Utah Power, manages a demand side management program (DSM) and hired etc Group, Inc to evaluate the cooling systems for potential energy efficiency improvements. etc Group, Inc and Lifetime... basketball systems in 1973 and became Lifetime Products in 1986. Lifetime introduced the first blow-molded plastic table in 1995. In the 120,000 square foot Clearfield, UT facility discussed in this paper, Lifetime blow molds plastic folding tables...

Anderson, G. R.

2006-01-01T23:59:59.000Z

471

Article Published on LED Lumen Maintenance and Light Loss Factors...  

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

of a comprehensive lifetime rating - as well as the problematic relationship between SSL lifetime and lumen maintenance - determining an appropriate LLD factor for LED products...

472

Development and analysis of a sustainable, low energy house in a hot and humid climate.  

E-Print Network [OSTI]

??This study examines the lifetime building energy consumption of a typical house in Bangkok, Thailand. The lifetime building energy consumption is composed of three major… (more)

Chulsukon, Pattarayut

2012-01-01T23:59:59.000Z

473

Demonstration with Energy and Daylighting Assessment of Sunlight Responsive Thermochromic (SRT) Window Systems  

SciTech Connect (OSTI)

Pleotint, LLC was able to successfully extrude thermochromic interlayer for use in the fenestration industry. Pleotint has developed a thermochromic sytem that requires two thermochromic colors to make a neutral color when in the tinted state. These two colors were assembled into a single interlayer called a tri-layer prelam by Crown Operations for use in the glass lamination industry. Various locations, orientations, and constructions of thermochromic windows were studied with funds from this contract. Locations included Australia, California, Costa Rica, Indiana, Iowa, Mexico. Installed orientations included vertical and skylight glazing applications. Various constructions included monolithic, double pane, triple pane constructions. A daylighting study was conducted at LinEl Signature. LinEl Signature has a conference room with a sylight roof system that has a west orientation. The existing LinEl Signature conference room had constant tint 40% VLT transparent skylights. Irradiance meters were installed on the interior and exterior sides of a constant tint skylight. After a month and a half of data collection, the irradiance meters were removed and the constant tint skylights were replaced with Pleotint thermochromic skylight windows. The irradiance meters were reinstalled in the same locations and irradiance data was collected. Both data sets were compared. The data showed that there was a linear relationship with exterior and interior irradiance for the existing constant tint skylights. The thermochromic skylights have a non-linear relationship. The thermochromic skylights were able to limit the amount of irradiance that passed through the thermochromic skylight. A second study of the LinEl Signature conference was performed using EnergyPlus to calculate the amount of Illuminance that passed through constant tint skylights as compared to thermochromic skylights. The constant tint skylights transmitted Illuminance is 2.8 times higher than the thermochromic skylights during the months of May, June, July, August and 1.9 times higher than the thermochromic skylight during the months of March, April, September, October. Calculated illuminance levels were much more consistent as compared to the existing constant tint skylights installed at LinEl Signature. This allows for a more comfortable interior space in regard to glare discomfort and interior lighting control. Lawrence Berkeley National Laboratory was contracted to characterize the performance of the thermochromic interlayer and thermochromic window systems. Thermochromic interlayer was characterized with spectrometer equipment. The thermochromic window systems were characterized using LBNL’s Advanced Window Test Facility. A copy of the report can be found in the Appendix. Iowa State University was contracted to compare thermochromic window technology to constant tint technology. Iowa State University conducted the testing at the Energy Resource Station (ERS). The ERS has the ability to simultaneously test side-by-side competing building technologies. The building is equipped with two identical air handling units, each with its own dedicated and identical chiller. One air handling unit supplies the four test rooms designated as the A rooms and the other unit serves the four test rooms designated as the B rooms. There is one A test room and one B test rooms arranged as pairs in a side-by-side design with each pair having a different exposure. There is a pair of test rooms that face the south, an east and west facing pair. Each of the test rooms is a mirror image of its match with identical construction. The rooms are unoccupied; however, the capability to impose false loads on the rooms exists. The false loads and room lighting can be scheduled to simulate various usage patterns. A copy of the report can be found in the Appendix. GARD Analytics was contracted to compare EnergyPlus building simulations to the data recorded at the Iowa ERS. The goal of this research was to validate the building simulation software developed by the US Department of Energy. EnergyPlus is

Broekhuis, Michael; Liposcak, Curtis; Witte, Michael; Henninger, Robert; Zhou, Xiaohui; Petzen, George; Buchanan, Michael; Kumar, Sneh

2012-03-31T23:59:59.000Z

474

School of Architecture, Design and the Built Environment PhD Projects and Topics  

E-Print Network [OSTI]

of quality 3. Economic implications of increased product lifetimes 4. Community-based social innovation

Evans, Paul

475

Tropospheric ozone and its precursors over the United States  

E-Print Network [OSTI]

-back · impacts carbon sequestration · Secondary organic aerosol formation · Impacts GHG lifetimes through its

Cohen, Ronald C.

476

Smart buildings with electric vehicle interconnection as buffer for local renewables?  

E-Print Network [OSTI]

lifetime: 10 years internal combustion engine with heatutilization, ICE: internal combustion engine with waste heat

Stadler, Michael

2012-01-01T23:59:59.000Z

477

Fenestration of Today and Tomorrow: A State-of-the-Art Review and Future Research Opportunities  

E-Print Network [OSTI]

cell glazing; Aerogel; Low-emissivity coating; Low-e; WindowWindows using aerogels and no low-e coatings can alreadya suspended coating glazing product and an aerogel glazing

Petter Jelle, Bjorn

2013-01-01T23:59:59.000Z

478

Rural electrification, climate change, and local economies: Facilitating communication in development policy and practice on Nicaragua's Atlantic Coast  

E-Print Network [OSTI]

Lifetime costs for wind/solar integration into Orinoco and Lifetime costs for wind/solar integration into Orinoco and biogas, as well as integration of wind and solar.    The 

Casillas, Christian E.

2012-01-01T23:59:59.000Z

479

Abstract--Although wireless microsensors can add performance-enhancing and energy-saving intelligence to  

E-Print Network [OSTI]

and super capacitors can supply [4]. As a result, the functionality of a node is normally low and lifetime

Rincon-Mora, Gabriel A.

480

Electrochromic windows for commercial buildings: Monitored results from a full-scale testbed  

E-Print Network [OSTI]

lifetime prediction of electrochromic windows for buildingsenergy performance of electrochromic windows. ” Proceedingsin the Proceedings. Electrochromic Windows for Commercial

Lee, Eleanor S.; DiBartolomeo, Dennis L.; Selkowitz, Stephen E.

2000-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "lifetime low-e double-pane" 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

SMASH: Smarter Flash Memory Storage in Low-Power Devices PI: Professor Kevin Fu, Ph.D.  

E-Print Network [OSTI]

for energy- efficient designs aiming to maximize the system's effective lifetime on a finite source of energy

Fu, Kevin

482

Cyclobutene photochemistry. Sub-stituent effects on the photochemistry  

E-Print Network [OSTI]

reaction is suggested. Triplet-triplet absorption spectra and triplet lifetimes of I-phenyl-, 1-(porn

Leigh, William J.

483

Analysis of Optics and Mask Contamination in SEMATECH EUV Micro-Exposure Tools  

E-Print Network [OSTI]

Analysis of Optics and Mask Contamination in SEMATECHMioro^Exposure Tools IEUVI Optics Contamination/Lifetime TWG

Wuest, Andrea

2008-01-01T23:59:59.000Z

484

PHASE TRANSFORMATIONS, STABILITY AND MATERIALS INTERACTIONS  

E-Print Network [OSTI]

and lifetime projections. Direct Conversion Research on thisgroup agreed that the direct conversion of light (or heat)

Morris, Jr., J.W.

2010-01-01T23:59:59.000Z

485

Hypertension, antihypertensive medication use, and breast cancer risk in the California Teachers Study cohort  

E-Print Network [OSTI]

x ORIGINAL PAPER Hypertension, antihypertensive medicationthe association between hypertension, antihypertensive (AH)Information on history of hypertension and lifetime regular

2010-01-01T23:59:59.000Z

486

au-sn solder joints: Topics by E-print Network  

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

devices have involved developing structural integrity models for predicting the operating lifetime under vibratory and thermal environmental exposure. Solder joint...

487

alternative solder alloys: Topics by E-print Network  

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

devices have involved developing structural integrity models for predicting the operating lifetime under vibratory and thermal environmental exposure. Solder joint...

488

Released upon receipt but intended f o r use  

E-Print Network [OSTI]

takes up about 16 quarts of nater during its lifetime; a hemp plant twice as much. Plants needs Over 2

489

High-Voltage Solid Polymer Batteries for Electric Drive Vehicles  

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

complete Timeline Budget Barriers Partners Overview * Barriers addressed: - A. Battery cost - C. Performance: Energy Density - E. Lifetime * Targets - prototype cells...

490

2012 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim 663 www.advmat.de  

E-Print Network [OSTI]

.[9] These efficiency gains have brought organic solar cells closer to commercial viability, highlighting the importance solar cells that employ P3HT have been well studied,[10­15] however, lifetime studies on the recently extrapolated lifetimes approaching 7 years for encapsulated devices, which is the longest reported lifetime

McGehee, Michael

491

Cutting-Edge Building Technologies Offer Big Energy Savings Potential...  

Energy Savers [EERE]

vacuum insulation materials. This combines low thermal emissivity (or low-e) coated plastic films to boost the energy efficiency of current window retrofit technologies by as...

492

CX-002573: Categorical Exclusion Determination | Department of...  

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

are the conference center and the Rose Room. Goals include the reduction of heat loss and heat gain by optimizing natural lighting with high performance low-e...

493

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

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

Low-E windows; increased blown-in attic insulation; and replacement of outdated light fixtures and the newer building would receive new light fixtures with motion sensors....

494

Neutron beta-decay, Standard Model and cosmology  

E-Print Network [OSTI]

The precise value of the neutron lifetime is of fundamental importance to particle physics and cosmology. The neutron lifetime recently obtained, 878.5 +/- 0.7stat +/- 0.3sys s, is the most accurate one to date. The new result for the neutron lifetime differs from the world average value by 6.5 standard deviations. The impact of the new result on testing of Standard Model and on data analysis for the primordial nucleosynthesis model is scrutinized.

A. P. Serebrov

2006-11-22T23:59:59.000Z

495

E-Print Network 3.0 - antibacterial labdenoic acid Sample Search...  

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

a females exudates, and this subsequently reduces her lifetime... immune system. Both parents take part in carcass preparation, but antibacterial exudates are primarily Source:...

496

1 Introduction - Optimization Online  

E-Print Network [OSTI]

Mar 24, 2012 ... ... the distribution function, F(x), of lifetime of the American population .... and S. Scarf (Eds.), Stanford University Press, Palo Alto, 1962, pp.

2012-03-24T23:59:59.000Z

497

ORNL part of new project to study how tropical forests worldwide...  

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

better than ten kilometers. This is the resolution that next-generation Earth system models will achieve during the project's lifetime. The team will take advantage of...

498

E-Print Network 3.0 - alpha-decaying 9- isomer Sample Search...  

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

relationship for the alpha decay... life-time was derived on the ground of the fission theory of alpha ... Source: Ecole Polytechnique, Centre de mathmatiques Collection:...

499

EFFECTS OF POLLUTANTS ON BIOLOGICAL SYSTEMS. CHAPTER FROM THE ENERGY AND ENVIRONMENT DIVISION ANNUAL REPORT 1979  

E-Print Network [OSTI]

Selection Guidelines for Geothermal Power_~tems, ALO-3904-1,geothermal plants; their presence adversely affects plant lifetimes and power

Authors, Various

2010-01-01T23:59:59.000Z

500

Two years later: Are MPAA’s tobacco labels protecting movie audiences?  

E-Print Network [OSTI]

Szobinski Time Warner *Weinstein *Lionsgate Sony *First LookTime Warner Sony *Lifetime *Oscilloscope Limited No US Dist.News Corp. *Lionsgate Disney Sony Disney Time Warner Sony *

Polansky, Jonathan; Titus, Kori; Glantz, Stanton A. Ph.D.

2009-01-01T23:59:59.000Z