Powered by Deep Web Technologies
Note: This page contains sample records for the topic "median expected lifetime" 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.


1

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

2

B Lifetime  

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

Lifetime Lifetime Lifetime is similar to half-life, which you may have studied in radioactivity. More details on lifetime. Lifetime is the average time between creation and decay of a particle, which cannot be predicted for an individual particle, so we use the average time. The lifetime is the time when e-1 (or 37%) of them have survived. Derivation of equation To simplify calculations, we will use only the information in a plane perpendicular (transverse) to the beams, that is, in the x-y plane. The lifetime of B mesons is t = d/v (since velocity = distance/time) The velocity can be determined from the momentum. However, we cannot use the usual equation p = mv These particles are moving at velocities close to the speed of light, c. Here the correct formula is (Do you find the usual formula for p if v is much smaller than c?)

3

Particle Lifetimes  

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

Reviewing Particle Lifetimes Reviewing Particle Lifetimes The lifetimes of elementary particles are statistical in nature. In a given sample, one particle might decay immediately, another in 1 nanosecond, yet another after 10 milliseconds, and still another in 50 years. What we call the lifetime is the time it takes for a sample to decay so 1/e (~30%) of the sample is left; after 2 lifetimes, 1/e2 of the sample is left, and so on. Take, for example, a sample of cosmic ray muons produced in the upper atmosphere. These muons, when observed at (relative) rest in the laboratory, have a mean lifetime T. Now, since particle decay is statistical in nature, the number of undecayed particles after a given time is a negative exponential function: N(t) = No e-t/T where N(t) is the number of muons at time t, No is the initial number of

4

Median Statistics, H0, and the  

Science Journals Connector (OSTI)

We develop median statistics that provide powerful alternatives to ?2 likelihood methods and require fewer assumptions about the data. Application to astronomical data demonstrates that median statistics lead to results that are quite similar and almost as constraining as ?2 likelihood methods but with somewhat more confidence since they do not assume Gaussianity of the errors or that their magnitudes are known. Applying median statistics to Huchra's compilation of nearly all estimates of the Hubble constant, we find a median value H0 = 67 km s-1 Mpc-1. Median statistics assume only that the measurements are independent and free of systematic errors. This estimate is arguably the best summary of current knowledge because it uses all available data and, unlike other estimates, makes no assumption about the distribution of measurement errors. The 95% range of purely statistical errors is ?2 km s-1 Mpc-1. The high degree of statistical accuracy of this result demonstrates the power of using only these two assumptions and leads us to analyze the range of possible systematic errors in the median, which we estimate to be roughly ?5 km s-1 Mpc-1 (95% limits), dominating over the statistical errors. Using a Bayesian median statistics treatment of high-redshift Type Ia supernovae (SNe Ia) apparent magnitude versus redshift data from Riess et al., we find the posterior probability that the cosmological constant ? > 0 is 70% or 89%, depending on the prior information we include. We find the posterior probability of an open universe is about 47%, and the probability of a spatially flat universe is 51% or 38%. Our results generally support the observers' conclusions but indicate weaker evidence for ? > 0 (less than 2 ?). Median statistics analysis of the Perlmutter et al. high-redshift SNe Ia data shows that the best-fit flat-? model is favored over the best-fit ? = 0 open model by odds of 366?:?1; the corresponding Riess et al. odds are 3?:?1 (assuming in each case prior odds of 1?:?1). A scalar field with a potential energy with a "tail" behaves like a time-variable ?. Median statistics analyses of the SNe Ia data do not rule out such a time-variable ? and may even favor it over a time-independent ? and a ? = 0 open model.

J. Richard Gott III; Michael S. Vogeley; Silviu Podariu; Bharat Ratra

2001-01-01T23:59:59.000Z

5

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.

Wietfeldt, F E

2014-01-01T23:59:59.000Z

6

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

7

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

8

Introduction The median problem for the reversal distance in  

E-Print Network [OSTI]

genomes E. Ohlebusch, M.I. Abouelhoda, K. Hockel, J. Stallkamp University of Ulm, Germany CPM 2005 The median problem for the reversal distance in circular bacterial genomes #12;Introduction Methods Conclusion General Problem Distances Specific Problem Median Problem Given 3 genomes G1, G2, and G3, find

Lonardi, Stefano

9

Property:EstimatedCostMedianUSD | Open Energy Information  

Open Energy Info (EERE)

EstimatedCostMedianUSD EstimatedCostMedianUSD Jump to: navigation, search Property Name EstimatedCostMedianUSD Property Type Quantity Description the median estimate of cost in USD Use this type to express a monetary value in US Dollars. The default unit is one US Dollar. http://en.wikipedia.org/wiki/Area Acceptable units (and their conversions) are: 100 cent USD,cents USD,Cent USD,Cents USD .001 k USD,thousand USD,Thousand USD .000001 M USD,million USD,Million USD .000000001 T USD,trillion USD,Trillion USD Pages using the property "EstimatedCostMedianUSD" Showing 25 pages using this property. (previous 25) (next 25) 2 2-M Probe Survey + 30030,000 centUSD 0.3 kUSD 3.0e-4 MUSD 3.0e-7 TUSD + A Acoustic Logs + 4.62462 centUSD 0.00462 kUSD 4.62e-6 MUSD 4.62e-9 TUSD + Aerial Photography + 240.5424,054 centUSD

10

Property:EstimatedTimeMedian | Open Energy Information  

Open Energy Info (EERE)

EstimatedTimeMedian EstimatedTimeMedian Jump to: navigation, search Property Name EstimatedTimeMedian Property Type Quantity Description the median estimate of time required Use this type to enumerate a length of time. The default unit is the year. Acceptable units (and their conversions) are: 8766 hours,hour,h,H,Hour,Hours,HOUR,HOURS 365.25 days,day,d,Day,Days,D,DAY,DAYS 52.17857 weeks,week,w,Week,Weeks,W,WEEK,WEEKS 12 months,month,m,Month,Months,M,MONTH,MONTHS 1 years,year,y,Year,Years,Y,YEAR,YEARS Pages using the property "EstimatedTimeMedian" Showing 25 pages using this property. (previous 25) (next 25) 2 2-M Probe Survey + 2.281542e-4 years2 hours 0.0833 days 0.0119 weeks 0.00274 months + A Acoustic Logs + 0.044 years385.92 hours 16.08 days 2.297 weeks 0.528 months +

11

Seismic Design Expectations Report  

Broader source: Energy.gov [DOE]

The Seismic Design Expectations Report (SDER) is a tool that assists DOE federal project review teams in evaluating the technical sufficiency of the project seismic design activities prior to...

12

Placement of Traffic Barriers on Roadside and Median Slopes  

E-Print Network [OSTI]

on the findings obtained from crash tests performed on flat terrain. For barriers placed on roadside and median slopes, vehicle impact height varies depending on the trajectory of the vehicle along the ditch section and lateral offset of the barrier. Thus...

Ferdous, Md Rubiat

2011-08-08T23:59:59.000Z

13

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 180expected saturation of the lifetime 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

14

Measurement of the tau lifetime  

SciTech Connect (OSTI)

If the tau lepton couples to the charged weak current with universal strength, its lifetime can be expressed in terms of the muon's lifetime, the ratio of the masses of the muon and the tau, and the tau's branching ratio into e anti nu/sub e/ nu/sub tau/ as tau/sub tau/ = tau/sub ..mu../ (m/sub ..mu..//m/sub tau/)/sup 5/ B(tau ..-->.. e anti nu/sub e/nu/sub tau/) = 2.8 +- 0.2 x 10/sup -13/ s. This paper describes the measurement of the tau lifetime made by the Mark II collaboration, using a new high precision drift chamber in contunction with the Mark II detector at PEP. The results of other tau lifetime measurements are summarized.

Jaros, J.A.

1982-10-01T23:59:59.000Z

15

Seismic Design Expectations Report  

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

Seismic Design Expectations Report Seismic Design Expectations Report March 2010 CD- This Rev of th Se -0 view Module w he overall Cons OFFICE O eismic De C CD-1 was used to dev struction Projec inco OF ENVIRO Standard esign Exp Critical Deci CD-2 M velop the Revie ct Review cond orporated in the ONMENTA Review Pla pectation ision (CD) A C March 2010 ew Plan for the ducted in 2009 e current versio AL MANAG an (SRP) ns Report Applicability D-3 e Oak Ridge Bl 9. Lessons lear on of the Modu GEMENT t (SDER) CD-4 ldg. 3019 60% rned from this r ule. ) Post Ope design review review have be eration w as part een Standard Review Plan, 2 nd Edition, March 2010 i FOREWORD The Standard Review Plan (SRP) 1 provides a consistent, predictable corporate review framework to ensure that issues and risks that could challenge the success of Office of Environmental

16

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

17

Distillate Stocks Expected  

Gasoline and Diesel Fuel Update (EIA)

4 4 Notes: So let's get to what you want to know. What do we expect this upcoming winter? When EIA's demand forecast is combined with its outlook for production and net imports, distillate stocks are projected to remain towards the lower end of the normal range. We are forecasting about an 11 million barrel build between the end of July 2001 and the end of November 2001, slightly more than the average over the past 5 years (10 million barrels), but less than the average of the last 10 years (15 ½ million barrels). If, however, economic incentives are high enough, distillate stocks could build more, resulting in a higher distillate stock level heading into the winter. Of course, the reverse is true as well, if for example, the distillate fuel refining spread declines substantially. Since 1994,

18

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

19

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

20

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. Dlage; D. Derkach; O. Deschamps; F. Dettori; A. Di Canto; H. Dijkstra; M. Dogaru; S. Donleavy; F. Dordei; A. Dosil Surez; 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. Frber; 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. Gbel; D. Golubkov; A. Golutvin; A. Gomes; P. Gorbounov; H. Gordon; M. Grabalosa Gndara; R. Graciani Diaz; L. A. Granado Cardoso; E. Graugs; G. Graziani; A. Grecu; E. Greening; S. Gregson; P. Griffith; O. Grnberg; 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. Lefvre; A. Leflat; J. Lefranois; 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. Mrki; J. Marks; G. Martellotti; A. Martens; A. Martn Snchez; 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. Mord; M. J. Morello; R. Mountain; I. Mous; F. Muheim; K. Mller; R. Muresan

2013-07-31T23:59:59.000Z

Note: This page contains sample records for the topic "median expected lifetime" 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

Vehicle Technologies Office: Fact #597: November 16, 2009 Median Age of  

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

7: November 16, 7: November 16, 2009 Median Age of Cars and Trucks Rising in 2008 to someone by E-mail Share Vehicle Technologies Office: Fact #597: November 16, 2009 Median Age of Cars and Trucks Rising in 2008 on Facebook Tweet about Vehicle Technologies Office: Fact #597: November 16, 2009 Median Age of Cars and Trucks Rising in 2008 on Twitter Bookmark Vehicle Technologies Office: Fact #597: November 16, 2009 Median Age of Cars and Trucks Rising in 2008 on Google Bookmark Vehicle Technologies Office: Fact #597: November 16, 2009 Median Age of Cars and Trucks Rising in 2008 on Delicious Rank Vehicle Technologies Office: Fact #597: November 16, 2009 Median Age of Cars and Trucks Rising in 2008 on Digg Find More places to share Vehicle Technologies Office: Fact #597: November 16, 2009 Median Age of Cars and Trucks Rising in 2008 on

22

PEVELOPMENT OF FLUORESCENCE LIFETIME DIAGNOSTIC  

Office of Scientific and Technical Information (OSTI)

4 4 PEVELOPMENT OF FLUORESCENCE LIFETIME DIAGNOSTIC w I Project Accomplishments Summary (Attachment I) CRADA NO. TSB-1449-97 Date: U 1 8 1 9 8 Revision: 1 A . Parties The project is a relationship between the Lawrence Livennore National Laboratoq (LLNL) and Optiphase, Inc. University of California Lawrence Livermore National Laboratory 7000 East Avenue, L-399 Livermore, CA 94550 Optiphase, h c 7652 Haskell Ave. Van Nuys, CA 91406 Technical Contact - D r . Pepe Davis (8 18)782-0997ext 1 12 B . Background Fiber-optic-based sensors are excellent candidates for detecting the presence and monitoring the levels of degradation products in stockpiled weapons. Specifically, fl uorescence-based sensors are extremely sensitive, can have high specificity for compounds of interest, and are "e~ectrically

23

Sandia National Laboratories: accelerated lifetime testing  

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

accelerated lifetime testing Sandia Solar Energy Test System Cited in National Engineering Competition On May 16, 2013, in Concentrating Solar Power, Energy, Energy Storage,...

24

Table B2. Summary Table: Totals and Medians of Floorspace, Number of Workers,  

U.S. Energy Information Administration (EIA) Indexed Site

. Summary Table: Totals and Medians of Floorspace, Number of Workers, Hours of Operation, and Age of Building, 1999" . Summary Table: Totals and Medians of Floorspace, Number of Workers, Hours of Operation, and Age of Building, 1999" ,"All Buildings (thousand)","Total Floorspace (million square feet)","Total Workers in All Buildings (thousand)","Median Square Feet per Building (thousand)","Median Square Feet per Worker","Median Hours per Week","Median Age of Buildings (years)" "All Buildings ................",4657,67338,81852,5,909,50,30.5 "Building Floorspace" "(Square Feet)" "1,001 to 5,000 ...............",2348,6774,11125,2.5,667,50,30.5 "5,001 to 10,000 ..............",1110,8238,10968,7,1000,50,34.5 "10,001 to 25,000 .............",708,11153,11378,15,1354,55,28.5

25

Recent measurements of the B hadron lifetime  

SciTech Connect (OSTI)

Recent measurements of the B hadron lifetime from PEP and PETRA experiments are presented. These measurements firmly establish that the B lifetime is long (approx.1 psec), implying that the mixing between the third generation of quarks and the lighter quarks is much weaker that the mixing between the first two generations.

Ong, R.A.

1987-12-01T23:59:59.000Z

26

Bridge recognition of median-resolution SAR images using pun histogram entropy  

Science Journals Connector (OSTI)

A novel algorithm for bridge recognition of median synthetic aperture radar (SAR) images using histogram entropy presented by Pun is proposed. Firstly, Lee filter and histogram...

Wu, Wenyu; Yin, Dong; Zhang, Rong; Liu, Yan; Pan, Jia

2009-01-01T23:59:59.000Z

27

Fusion-component lifetime analysis  

SciTech Connect (OSTI)

A one-dimensional computer code has been developed to examine the lifetime of first-wall and impurity-control components. The code incorporates the operating and design parameters, the material characteristics, and the appropriate failure criteria for the individual components. The major emphasis of the modeling effort has been to calculate the temperature-stress-strain-radiation effects history of a component so that the synergystic effects between sputtering erosion, swelling, creep, fatigue, and crack growth can be examined. The general forms of the property equations are the same for all materials in order to provide the greatest flexibility for materials selection in the code. The individual coefficients within the equations are different for each material. The code is capable of determining the behavior of a plate, composed of either a single or dual material structure, that is either totally constrained or constrained from bending but not from expansion. The code has been utilized to analyze the first walls for FED/INTOR and DEMO and to analyze the limiter for FED/INTOR.

Mattas, R.F.

1982-09-01T23:59:59.000Z

28

Lifetime measurements in Sc45  

Science Journals Connector (OSTI)

The lifetimes of levels in Sc45 have been determined by the Doppler-shift-attenuation method with the Ca44(p,?)Sc45 reaction for 11 levels between 1.4 and 3.8 MeV. The energies (keV) of the levels and mean lives (psec) studied in this work are: 1408 (< 0.12); 1800 (0.095); 2092 (0.012); 2151 (0.087); 2303 (0.080); 2352 (0.060); 2531 (0.12); 2590 (0.050); 2778 (0.019); 2895 (0.010); 3714 (0.019). On the basis of E2 transition strengths the spin assignment of 52 has been determined for the 2092-keV state and further restrictions have been made to the range of possible spins for a number of states.[NUCLEAR REACTIONS Ca44(p,?), E=0.86 MeV; Sc45 levels, Ex=1.4-3.8 MeV, measured T12, deduced J.

R. L. Schulte; J. D. King; H. W. Taylor

1974-04-01T23:59:59.000Z

29

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

30

LED LUMINAIRE LIFETIME: Recommendations for Testing and Reporting...  

Office of Environmental Management (EM)

LED LUMINAIRE LIFETIME: Recommendations for Testing and Reporting LED LUMINAIRE LIFETIME: Recommendations for Testing and Reporting 2011 Solid-State Lighting Product Quality...

31

Reflexive Expectation Formation Timo Ehrig  

E-Print Network [OSTI]

of expectations fold back to the realized economic process, and in particular, to the selection of one of multiple possible equilibria in the economic process? We present a game theoretical model in which these questions and the development of macroe- conomic quantities, when there is a fundamental uncertainty about the economic process

Jost, Jürgen

32

Action Potentials from an Arthropod Ocellus: The Median Eye of Limulus  

Science Journals Connector (OSTI)

...epidermis exposes the "rudimentary" median eye to external illumination (Waterman, unpublished). 1 Stormer, L., Skrft. Norsk. Videns. Akad. Oslo, I. Mat. Naturv. Ki. 1944,- No. 5, 1-158 (1944). 2 Patten, W., The Evolution of the...

Talbot H. Waterman

1953-01-01T23:59:59.000Z

33

Cost-effectiveness of freeway median high occupancy vehicle (HOV) facility conversion to rail guideway transit  

E-Print Network [OSTI]

Many freeways in the United States contain median high occupancy vehicle (HOV) facilities. These facilities have been envisioned by some as reserved space for future rail guideway transit. This thesis examines the cost-effectiveness of converting a...

Best, Matthew Evans

2012-06-07T23:59:59.000Z

34

Development of guidelines for the aesthetic surface treatment of safety-shaped median barriers  

E-Print Network [OSTI]

Safety-shaped median barriers have long been employed to keep misguided vehicles on the roadway. In recent years there has been a growing national desire for more aesthetically pleasing roadside safety systems. Adding surface texture is one...

Ness, Jacob Raymond

2004-11-15T23:59:59.000Z

35

Fact #597: November 16, 2009 Median Age of Cars and Trucks Rising in 2008  

Broader source: Energy.gov [DOE]

The median age of cars and trucks in the U.S. continued to grow in 2008. Due to the economic climate and high gasoline prices that summer, consumers held onto their vehicles longer and delayed new...

36

{chi}{sup 2} versus median statistics in supernova type Ia data analysis  

SciTech Connect (OSTI)

In this paper we compare the performances of the {chi}{sup 2} and median likelihood analysis in the determination of cosmological constraints using type Ia supernovae data. We perform a statistical analysis using the 307 supernovae of the Union 2 compilation of the Supernova Cosmology Project and find that the {chi}{sup 2} statistical analysis yields tighter cosmological constraints than the median statistic if only supernovae data is taken into account. We also show that when additional measurements from the cosmic microwave background and baryonic acoustic oscillations are considered, the combined cosmological constraints are not strongly dependent on whether one applies the {chi}{sup 2} statistic or the median statistic to the supernovae data. This indicates that, when complementary information from other cosmological probes is taken into account, the performances of the {chi}{sup 2} and median statistics are very similar, demonstrating the robustness of the statistical analysis.

Barreira, A. [Centro de Fisica do Porto, Rua do Campo Alegre 687, 4169-007 Porto (Portugal); Departamento de Fisica da Faculdade de Ciencias da Universidade do Porto, Rua do Campo Alegre 687, 4169-007 Porto (Portugal); Avelino, P. P. [Departamento de Fisica da Faculdade de Ciencias da Universidade do Porto, Rua do Campo Alegre 687, 4169-007 Porto (Portugal); Centro de Astrofisica da Universidade do Porto, Rua das Estrelas, 4150-762 Porto (Portugal)

2011-10-15T23:59:59.000Z

37

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

38

RICE UNIVERSITY LIFETIME PHYSICAL ACTIVITY PROGRAM  

E-Print Network [OSTI]

weeks. Pending in instructor approval, attending a lap swim time at the pool will make up most excusedRICE UNIVERSITY LIFETIME PHYSICAL ACTIVITY PROGRAM BEGINNING SWIMMING LPAP 166 Fall 2012 Beginning Swimming: LPAP # 166 Days: Mondays and Wednesdays Time: 9:00 a.m 9:50 p.m. Instructor: Kyle Coplen E

39

Lifetime-based TCP service differentiation  

Science Journals Connector (OSTI)

We present a lifetime-based differentiation framework for TCP flows. The separation into two classes is based on a threshold technique. We introduce a scheme, FairShare, that handles the long-lived flows and achieves global max-min fairness. The short-lived ... Keywords: Active queue management, Bandwidth allocation, Fairness, TCP

I. Nikolaidis; X. Wu

2005-01-01T23:59:59.000Z

40

Neutron lifetime measured with stored ultracold neutrons  

Science Journals Connector (OSTI)

The neutron lifetime has been measured by counting the neutrons remaining in a fluid-walled bottle as a function of the duration of storage. Losses of neutrons caused by the wall reflections are eliminated by varying the bottle volume-to-surface ratio. The result obtained is ??=887.63 s.

W. Mampe; P. Ageron; C. Bates; J. M. Pendlebury; A. Steyerl

1989-08-07T23:59:59.000Z

Note: This page contains sample records for the topic "median expected lifetime" 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

2003 CBECS National Median Source Energy Use and Performance Comparisons by  

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

2003 CBECS National Median Source Energy Use and Performance 2003 CBECS National Median Source Energy Use and Performance Comparisons by Building Type Secondary menu About us Press room Contact Us Portfolio Manager Login Facility owners and managers Existing buildings Commercial new construction Industrial energy management Small business Service providers Service and product providers Verify applications for ENERGY STAR certification Design commercial buildings Energy efficiency program administrators Commercial and industrial program sponsors Associations State and local governments Federal agencies Tools and resources Training In This Section Campaigns Commercial building design Communications resources Energy management guidance Financial resources Portfolio Manager Products and purchasing Recognition Research and reports Service and product provider (SPP) resources

42

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.

43

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.

44

ICALEPCS Lifetime Achievement Award to Martin Kraimer  

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

Cockroaches Advance Student's Study of Ancient Life Cockroaches Advance Student's Study of Ancient Life Bringing Fruit Flies in from the Cold DOE Environmental Sustainability Award to Three from APS 2009 Chemistry Nobel to APS Users The First Experiment at the LCLS APS News Archives: 2012 | 2011 | 2010 | 2009 2008 | 2007 | 2006 | 2005 2004 | 2003 | 2002 | 2001 2000 Subscribe to APS News rss feed ICALEPCS Lifetime Achievement Award to Martin Kraimer OCTOBER 28, 2009 Bookmark and Share Left to right: Ryotaro Tanaka (ICALEPCS2009 Chair), Jeffrey O. Hill, Martin R. Kraimer, Bob Daleisio, and In Soo Ko (ICALEPCS ISAC Chair), October 15, 2009, Kobe Japan. Martin R. Kraimer, formerly of the Controls Group in the Argonne APS Engineering Support Division, is one of three recipients of the first Lifetime Achievement Award presented by the ICALEPCS International

45

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

46

Lifetimes of levels in Sc45  

Science Journals Connector (OSTI)

In an attempt to clear up discrepancies between lifetimes measured by the nuclear resonance fluorescence method and by the Doppler shift attenuation method, the results of a further resonance fluorescence experiment are reported for the 720, 1237, 1409, 1662, and 2092 keV levels in Sc45.NUCLEAR REACTIONS Sc45(?,?), bremsstrahlung 0.8

F. R. Metzger

1975-07-01T23:59:59.000Z

47

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... 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

48

Maximizing expected utility over a knapsack constraint  

E-Print Network [OSTI]

The expected utility knapsack problem is to pick a set of items whose values are ... variables so as to maximize the expected utility of the total value of the items...

2014-08-11T23:59:59.000Z

49

Lifetimes of rovibrational levels of HD+  

Science Journals Connector (OSTI)

A method for calculating the oscillator strengths for rovibrational transitions of a diatomic system within an approach that is not based on the Born-Oppenheimer (BO) approximation is presented. The non-BO wave functions representing the bound states of the system are expanded in terms of explicitly correlated Gaussian functions. The method is applied to calculate oscillator strengths for the HD+ ion for transitions between rotationless vibrational states and vibrational states which are rotationally singly excited. The effect of the asymmetry of the HD+ charge distribution on the oscillator strengths and on the lifetimes of the states is elucidated.

Nikita Kirnosov; Keeper L. Sharkey; Ludwik Adamowicz

2014-01-27T23:59:59.000Z

50

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

51

Top quark physics expectations at the LHC  

E-Print Network [OSTI]

physics expectations at the LHC Andrei Gaponenko, on behalfbe produced copiously at the LHC. This will make possiblepurpose detectors at the LHC, which will provide proton-

Gaponenko, Andrei; ATLAS Collaboration; CMS Collaboration

2008-01-01T23:59:59.000Z

52

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

53

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

54

Active hurricane season expected to shut-in higher amount of oil and natural gas production  

U.S. Energy Information Administration (EIA) Indexed Site

Active hurricane season expected to shut-in higher amount of Active hurricane season expected to shut-in higher amount of oil and natural gas production An above-normal 2013 hurricane season is expected to cause a median production loss of about 19 million barrels of U.S. crude oil and 46 billion cubic feet of natural gas production in the Gulf of Mexico, according to the new forecast from the U.S. Energy Information Administration. That's about one-third more than the amount of oil and gas production knocked offline during last year's hurricane season. Government weather forecasts predict 13 to 20 named storms will form between June and the end of November, with 7 to 11 of those turning into hurricanes. Production outages in previous hurricane seasons were as high as 107 million barrels of crude oil

55

Quantitative Characterization of Filament Dynamics by Single-Molecule Lifetime  

E-Print Network [OSTI]

CHAPTER 29 Quantitative Characterization of Filament Dynamics by Single-Molecule Lifetime. Single-Molecule Lifetime Measurements A. Extract and Sample Preparation B. Microscopy C. Data Analysis Dynamics C. Connecting to Other Types of Measurements IV. Results and Conclusion References Abstract Single-molecule

Needleman, Daniel

56

AIAA-2001-0025 SPECTRUM FATIGUE LIFETIME AND RESIDUAL STRENGTH  

E-Print Network [OSTI]

fit of the two. Direct lifetime under a variety of loads spectra for wind tests of residual strength for a modified standard wind bone coupons were manufactured, tested and favorably turbine spectrum. When a single and residual strength. Over 900 tests spectrum loading and fatigue lifetimes of a typical wind have been run

57

Construction Timing and Expectations | Department of Energy  

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

Construction Timing and Expectations Construction Timing and Expectations Construction Timing and Expectations October 16, 2013 - 5:07pm Addthis Creating a detailed construction schedule that allows all the project elements to be coordinated in a timely manner is fundamental to any successful construction project. The construction schedule should take into account that many tasks cannot be started before others are finished. It should also account for special schedule considerations related to renewable energy systems. Key elements of most new construction or major renovation projects include landscape, structural, architectural, mechanical, electrical, plumbing, communication systems, and renewable energy systems. Maintaining the highest quality of construction across all elements is fundamental to any

58

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

59

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

60

Brain MRI Classification using the Expectation Maximization  

E-Print Network [OSTI]

Brain MRI Classification using the Expectation Maximization made a brain magnetic resonance image (MRI) classification algorithm that uses a twostage applied to a set of normal brain MR images for further testing. We accomplished a working

Chen, Tsuhan

Note: This page contains sample records for the topic "median expected lifetime" 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

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

62

Unusual behavior in the first excited state lifetime of catechol  

E-Print Network [OSTI]

We are presenting vibrationally selective pump-probe measurements of the first electronic excited-state (pp*) lifetime of jet-cooled neutral catechol (1,2-dihydroxybenzene). The lifetime of the 0-0 transition is very short (7 ps) as rationalized by the small pp*/psigma* gap calculated. However the lifetimes implying higher out-of-plane vibrational levels are longer (~11 ps). This emphasizes the role of the out-of-plane vibration in the pp*/psigma* coupling not only in its nature but also in the number of quanta

Weiler, Martin; Fraud, Graldine; Ishiuchi, Shun-Ichi; Dedonder, Claude; Jouvet, Christophe; Fujii, Masaaki

2014-01-01T23:59:59.000Z

63

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

64

Lifetime exergy consumption as a sustainability metric for information technologies  

Science Journals Connector (OSTI)

This paper summarizes recent explorations of the use of lifetime exergy consumption as a thermodynamically based metric for sustainability of information technologies. Other proposed thermodynamic metrics are described and compared with life cycle exergy ...

David J. Lettieri; Christopher R. Hannemann; Van P. Carey; Amip J. Shah

2009-05-01T23:59:59.000Z

65

Lifetime of the Highly Efficient H- Ion Sources  

SciTech Connect (OSTI)

Factors limiting the operating lifetime of Compact Surface Plasma Sources (CSPS) are analyzed and possible treatments for lifetime enhancement are considered. Noiseless discharges with lower gas and cesium densities are produced in experiments with modified discharge cells. With these discharge cells it is possible to increase the emission aperture and extract the same beam with a lower discharge current and with correspondingly increased source lifetime. A design of an advanced CSPS is presented. Optimization of the discharge cells in a Penning H{sup -} ion source is a viable method for increasing the phase space of the stable region for noiseless discharge production. With this method, cesium usage would be decreased, potentially resulting in longer source lifetimes.

Bollinger, D.S.; /Fermilab; Dudnikov, V.G.; /MUONS Inc., Batavia; Faircloth, D.C.; Lawrie, S.R.; /Rutherford

2012-05-01T23:59:59.000Z

66

Lifetime of solar flare particles in coronal storage regions  

Science Journals Connector (OSTI)

Most discussions of lifetime of flare particles in the solar corona have assumed that collision loss is ... However, it is quite possible that the solar cosmic rays are not imbedded in 106...K coronal material bu...

Kinsey A. Anderson

1972-12-01T23:59:59.000Z

67

A two-parameter lifetime distribution with decreasing failure rate  

Science Journals Connector (OSTI)

In this paper, a new two-parameter lifetime distribution with decreasing failure rate is introduced. Various properties of the proposed distribution are discussed. The estimation of the parameters attained by the EM algorithm and their asymptotic variances ...

Rasool Tahmasbi; Sadegh Rezaei

2008-04-01T23:59:59.000Z

68

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

69

Sandia National Laboratories: acceler-ated lifetime test  

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

acceler-ated lifetime test Sandia R&D Funded under New DOE SunShot Program On November 27, 2013, in Energy, News, News & Events, Partnership, Photovoltaic, Renewable Energy, Solar,...

70

Automatic measurement of the mean lifetime of the muon  

Science Journals Connector (OSTI)

This paper describes a microcomputer?based apparatus for the measurement of the mean lifetime of the muon. The equipment exposes the student to many modern experimental techniques and is suitable for an advanced undergraduatephysics laboratory.

Roger J. Lewis

1982-01-01T23:59:59.000Z

71

Optimum maintenance strategy under uncertainty in the lifetime distribution  

Science Journals Connector (OSTI)

Abstract The problem of determining the optimal maintenance strategy for a machine given its lifetime distribution has been studied extensively. Solutions to this problem are outlined in the academic literature, prescribed in professional handbooks, implemented in reliability engineering software systems and widely used in practice. These solutions typically assume that the lifetime distribution and its parameter values are known with certainty, although this is usually not the case in practice. In this paper we study the effect of parameter uncertainty on the optimum age-based maintenance strategy. The effect of uncertainty is evaluated by considering both a theoretical uniform lifetime distribution and a more realistic Weibull lifetime distribution. The results show that admitting to the uncertainty does influence the optimal maintenance age and also provides a quantifiable cost benefit. The results can help maintenance managers in making maintenance decisions under uncertainty, and also in deciding when it is worthwhile to invest in advanced data improvement procedures.

Bram de Jonge; Warse Klingenberg; Ruud Teunter; Tiedo Tinga

2015-01-01T23:59:59.000Z

72

World oil prices expected to fall  

Science Journals Connector (OSTI)

World oil prices expected to fall ... The good news is that world oil prices probably will fall somewhat in the near future. ... The bad news is that oil prices probably will begin rising again in the mid-1980s, and even the optimists suspect that they will continue to do so thereafter. ...

1983-10-10T23:59:59.000Z

73

FOR THE RECORD Expectations from structural genomics  

E-Print Network [OSTI]

on the history of proteins classified in the SCOP structure database, we expect that only about a quarter! can help answer this question. The SCOP database ~Murzin et al., 1995! organizes proteins according a new experiment on a protein sequence identical or nearly identical to one already in the database

74

Grid Security: Expecting the Mingchao Ma  

E-Print Network [OSTI]

Grid Security: Expecting the Unexpected Mingchao Ma STFC � Rutherford Appleton Laboratory, UK #12;Slide 2 Overview � Security Service Challenges (SSC) Review � Grid Security Incident � What had happened of the LCG/EGEE Grid Sites (Dec 2008) http://www.gridpp.ac.uk/security/ssc/ https

University College London

75

Asymptotic Analysis of Multivariate Tail Conditional Expectations  

E-Print Network [OSTI]

instruments so that the resulting position (X) - X is acceptable to regulators/supervisors. The coherent risk related to various coherent risk measures. In the univari- ate case, the tail conditional expectation is asymptotically proportional to the value-at-risk, a popular risk measure. The focus of this paper

Li, Haijun

76

Asymptotic Analysis of Multivariate Tail Conditional Expectations  

E-Print Network [OSTI]

instruments so that the resulting position (X) - X is acceptable to regulators/supervisors. The coherent risk and are closely related to various coherent risk measures. In the univari- ate case, the tail conditional expectation is asymptotically proportional to the value-at-risk, a popular risk measure. The focus

Li, Haijun

77

E-Print Network 3.0 - attenuation method lifetime Sample Search...  

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

ACTA PHYSICA POLONICA B No 3 LIFETIME MEASUREMENTS OF EXCITED STATES IN EXOTIC... for the Doppler-effect based lifetime measurements program at the National ... Source: Magiera,...

78

USE OF MOVING AVERAGES AND INTERPOLATION TO ESTIMATE MEDIAN-EFFECTIVE DOSE: I. Fundamental Formulas, Estimation of Error, and Relation to Other Methods  

Science Journals Connector (OSTI)

...median-effective dose; fundamental formulas, estimation of error, and...median-effective dose, in cases of a...150-154. 144 ESTIMATION OF MEDL4N-EFFECTIVE DOSE 31. EJUSSEY...The effects of radiations on biological systems...

William R. Thompson

1947-06-01T23:59:59.000Z

79

Relation between charge carrier mobility and lifetime in organic photovoltaics  

Science Journals Connector (OSTI)

The relationship between charge carrier lifetime and mobility in a bulk heterojunction based organic solar cell utilizing diketopyrrolopyrole-naphthalene co-polymer and PC71BM in the photoactive blend layer is investigated using the photoinduced charge extraction by linearly increasing voltage technique. Light intensity delay time and temperature dependent experiments are used to quantify the charge carrier mobility and density as well as the temperature dependence of both. From the saturation of photoinduced current at high laser intensities it is shown that Langevin-type bimolecular recombination is present in the studied system. The charge carrier lifetime especially in Langevin systems is discussed to be an ambiguous and unreliable parameter to determine the performance of organic solar cells because of the dependence of charge carrier lifetime on charge carrier density mobility and type of recombination. It is revealed that the relation between charge mobility (?) and lifetime (?) is inversely proportional where the ?? product is independent of temperature. The results indicate that in photovoltaic systems with Langevin type bimolecular recombination the strategies to increase the charge lifetime might not be beneficial because of an accompanying reduction in charge carrier mobility. Instead the focus on non-Langevin mechanisms of recombination is crucial because this allows an increase in the charge extraction rate by improving the carrier lifetime density and mobility simultaneously.

Chellappan Vijila; Samarendra P. Singh; Prashant Sonar; Almantas Pivrikas; Bronson Philippa; Elumalai Naveen Kumar; S. Gomathy Sandhya; Sergey Gorelik; Jonathan Hobley; Akihiro Furube; Hiroyuki Matsuzaki; Ryuzi Katoh

2013-01-01T23:59:59.000Z

80

Setting clear expectations for safety basis development  

SciTech Connect (OSTI)

DOE-RL has set clear expectations for a cost-effective approach for achieving compliance with the Nuclear Safety Management requirements (10 CFR 830, Nuclear Safety Rule) which will ensure long-term benefit to Hanford. To facilitate implementation of these expectations, tools were developed to streamline and standardize safety analysis and safety document development resulting in a shorter and more predictable DOE approval cycle. A Hanford Safety Analysis and Risk Assessment Handbook (SARAH) was issued to standardized methodologies for development of safety analyses. A Microsoft Excel spreadsheet (RADIDOSE) was issued for the evaluation of radiological consequences for accident scenarios often postulated for Hanford. A standard Site Documented Safety Analysis (DSA) detailing the safety management programs was issued for use as a means of compliance with a majority of 3009 Standard chapters. An in-process review was developed between DOE and the Contractor to facilitate DOE approval and provide early course correction. As a result of setting expectations and providing safety analysis tools, the four Hanford Site waste management nuclear facilities were able to integrate into one Master Waste Management Documented Safety Analysis (WM-DSA).

MORENO, M.R.

2003-05-03T23:59:59.000Z

Note: This page contains sample records for the topic "median expected lifetime" 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

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

82

Radiative Lifetimes of Some Electronic States of Helium  

Science Journals Connector (OSTI)

In this paper we describe our measurements of the radiative lifetimes of the 3 3 P 3 3 D 4 1 D and 4 3 D electronic states of helium using a low-energy positive ion accelerator. The lifetimes in nanoseconds are 3 3 P?(1115) 3 3 D?(143) 4 1 D?(344) and 4 3 D?(321) . In addition we discuss the desirability and feasibility of introducing undergraduates to this type of research.

Stanley A. Chin-Bing; Charles E. Head; Albert E. Green Jr.

1970-01-01T23:59:59.000Z

83

DOE-HSS Expectations.ppt  

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

HSS HSS Expectations for Nanoscale Safety and Health Argonne National Laboratory July 7-9, 2008 Patricia R. Worthington, PhD Director, Office of Health and Safety Office of Health, Safety, and Security 2 Role of HSS Policy Development * Role of HSS is to develop the ES&H policy * HSS may also coordinate, collaborate, and assist in policy development with other organizations * The approach to developing policy could be a top-down or bottom-up approach 3 History of DOE Nano Policy * 7/04 - White Paper, "Ensuring the Safety and Viability of Nanotechnology" * 3/05 - 1 st meeting of Emerging Technology Workgroup to discuss nanotechnology * 5/05 - Safety Bulletin , "Good Practices for Handling Nanomaterials" 4 History of DOE Nano Policy * 9/05 - DOE P 456.1 "Secretarial Policy Statement On

84

Colorado Natural Gas Plant Liquids, Expected Future Production...  

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

Expected Future Production (Million Barrels) Colorado Natural Gas Plant Liquids, Expected Future Production (Million Barrels) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5...

85

Oklahoma Natural Gas Plant Liquids, Expected Future Production...  

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

Plant Liquids, Expected Future Production (Million Barrels) Oklahoma Natural Gas Plant Liquids, Expected Future Production (Million Barrels) Decade Year-0 Year-1 Year-2 Year-3...

86

Louisiana--State Offshore Natural Gas Plant Liquids, Expected...  

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

Expected Future Production (Million Barrels) Louisiana--State Offshore Natural Gas Plant Liquids, Expected Future Production (Million Barrels) Decade Year-0 Year-1 Year-2 Year-3...

87

California--State Offshore Natural Gas Plant Liquids, Expected...  

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

Plant Liquids, Expected Future Production (Million Barrels) California--State Offshore Natural Gas Plant Liquids, Expected Future Production (Million Barrels) Decade Year-0 Year-1...

88

Federal Offshore--Texas Natural Gas Plant Liquids, Expected Future...  

Gasoline and Diesel Fuel Update (EIA)

Expected Future Production (Million Barrels) Federal Offshore--Texas Natural Gas Plant Liquids, Expected Future Production (Million Barrels) Decade Year-0 Year-1 Year-2 Year-3...

89

Federal Offshore--California Natural Gas Plant Liquids, Expected...  

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

Expected Future Production (Million Barrels) Federal Offshore--California Natural Gas Plant Liquids, Expected Future Production (Million Barrels) Decade Year-0 Year-1 Year-2 Year-3...

90

Texas State Offshore Dry Natural Gas Expected Future Production...  

U.S. Energy Information Administration (EIA) Indexed Site

Dry Natural Gas Expected Future Production (Billion Cubic Feet) Texas State Offshore Dry Natural Gas Expected Future Production (Billion Cubic Feet) Decade Year-0 Year-1 Year-2...

91

Louisiana State Offshore Dry Natural Gas Expected Future Production...  

Gasoline and Diesel Fuel Update (EIA)

Dry Natural Gas Expected Future Production (Billion Cubic Feet) Louisiana State Offshore Dry Natural Gas Expected Future Production (Billion Cubic Feet) Decade Year-0 Year-1 Year-2...

92

California State Offshore Dry Natural Gas Expected Future Production...  

Gasoline and Diesel Fuel Update (EIA)

Dry Natural Gas Expected Future Production (Billion Cubic Feet) California State Offshore Dry Natural Gas Expected Future Production (Billion Cubic Feet) Decade Year-0 Year-1...

93

Texas (with State Offshore) Natural Gas Plant Liquids, Expected...  

Gasoline and Diesel Fuel Update (EIA)

Expected Future Production (Million Barrels) Texas (with State Offshore) Natural Gas Plant Liquids, Expected Future Production (Million Barrels) Decade Year-0 Year-1 Year-2 Year-3...

94

Lower 48 Federal Offshore Natural Gas Plant Liquids, Expected...  

U.S. Energy Information Administration (EIA) Indexed Site

Plant Liquids, Expected Future Production (Million Barrels) Lower 48 Federal Offshore Natural Gas Plant Liquids, Expected Future Production (Million Barrels) Decade Year-0 Year-1...

95

Louisiana (with State Offshore) Natural Gas Plant Liquids, Expected...  

Gasoline and Diesel Fuel Update (EIA)

Expected Future Production (Million Barrels) Louisiana (with State Offshore) Natural Gas Plant Liquids, Expected Future Production (Million Barrels) Decade Year-0 Year-1 Year-2...

96

Alabama (with State Offshore) Natural Gas Plant Liquids, Expected...  

U.S. Energy Information Administration (EIA) Indexed Site

Plant Liquids, Expected Future Production (Million Barrels) Alabama (with State Offshore) Natural Gas Plant Liquids, Expected Future Production (Million Barrels) Decade Year-0...

97

California (with State Offshore) Natural Gas Plant Liquids, Expected...  

U.S. Energy Information Administration (EIA) Indexed Site

Plant Liquids, Expected Future Production (Million Barrels) California (with State Offshore) Natural Gas Plant Liquids, Expected Future Production (Million Barrels) Decade Year-0...

98

Alaska (with Total Offshore) Natural Gas Plant Liquids, Expected...  

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

Expected Future Production (Million Barrels) Alaska (with Total Offshore) Natural Gas Plant Liquids, Expected Future Production (Million Barrels) Decade Year-0 Year-1 Year-2 Year-3...

99

Optimal lifetime consumption and investment under drawdown constraint  

E-Print Network [OSTI]

Optimal lifetime consumption and investment under drawdown constraint Romuald Elie Nizar Touzi October 21, 2006 Abstract We consider the infinite horizon optimal consumption-investment problem under-form expressions for the optimal consumption and investment strategy. Key words: portfolio allocation, drawdown

Elie, Romuald

100

Optimal lifetime consumption and investment under drawdown constraint  

E-Print Network [OSTI]

Optimal lifetime consumption and investment under drawdown constraint Romuald Elie Nizar Touzi consumption-investment problem under the drawdown constraint, i.e. the wealth process never falls below in explicit form, and we derive closed-form expressions for the optimal consumption and investment strategy

Touzi, Nizar

Note: This page contains sample records for the topic "median expected lifetime" 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

An approach for lifetime reliability analysis using theorem proving  

Science Journals Connector (OSTI)

Recently proposed formal reliability analysis techniques have overcome the inaccuracies of traditional simulation based techniques but can only handle problems involving discrete random variables. In this paper, we extend the capabilities of existing ... Keywords: Failure rate, Formal methods, Fractile function, HOL, Hazard function, Lifetime analysis, Random variables, Reliability analysis, Statistical properties, Theorem proving

Naeem Abbasi; Osman Hasan; Sofine Tahar

2014-03-01T23:59:59.000Z

102

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 (

103

Lifetime-Aware Intrusion Detection under Safeguarding Constraints  

E-Print Network [OSTI]

Lifetime-Aware Intrusion Detection under Safeguarding Constraints Ali Iranli, Hanif Fatemi, Massoud in whereby first the safeguarding constraints are satisfied and then the scheduling problem is solved Detection under Safeguarding constraint (IDS) is the version of the problem that we are interested to extend

Pedram, Massoud

104

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

105

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

106

Persistent Contrails and Contrail Cirrus. Part II: Full Lifetime Behavior  

Science Journals Connector (OSTI)

More than 200 large-eddy simulations of long-lived contrails from several-seconds age until their demise have been performed and their lifetime-integrated behavior has been analyzed. The simulations employ size-resolved microphysics and include ...

D. C. Lewellen

2014-12-01T23:59:59.000Z

107

Inhomogeneous dephasing masks coherence lifetimes in ensemble measurements  

SciTech Connect (OSTI)

An open question at the forefront of modern physical sciences is what role, if any, quantum effects may play in biological sensing and energy transport mechanisms. One area of such research concerns the possibility of coherent energy transport in photosynthetic systems. Spectroscopic evidence of long-lived quantum coherence in photosynthetic light-harvesting pigment protein complexes (PPCs), along with theoretical modeling of PPCs, has indicated that coherent energy transport might boost efficiency of energy transport in photosynthesis. Accurate assessment of coherence lifetimes is crucial for modeling the extent to which quantum effects participate in this energy transfer, because such quantum effects can only contribute to mechanisms proceeding on timescales over which the coherences persist. While spectroscopy is a useful way to measure coherence lifetimes, inhomogeneity in the transition energies across the measured ensemble may lead to underestimation of coherence lifetimes from spectroscopic experiments. Theoretical models of antenna complexes generally model a single system, and direct comparison of single system models to ensemble averaged experimental data may lead to systematic underestimation of coherence lifetimes, distorting much of the current discussion. In this study, we use simulations of the Fenna-Matthews-Olson complex to model single complexes as well as averaged ensembles to demonstrate and roughly quantify the effect of averaging over an inhomogeneous ensemble on measured coherence lifetimes. We choose to model the Fenna-Matthews-Olson complex because that system has been a focus for much of the recent discussion of quantum effects in biology, and use an early version of the well known environment-assisted quantum transport model to facilitate straightforward comparison between the current model and past work. Although ensemble inhomogeneity is known to lead to shorter lifetimes of observed oscillations (simply inhomogeneous spectral broadening in the time domain), this important fact has been left out of recent discussions of spectroscopic measurements of energy transport in photosynthesis. In general, these discussions have compared single-system theoretical models to whole-ensemble laboratory measurements without addressing the effect of inhomogeneous dephasing. Our work addresses this distinction between single system and ensemble averaged observations, and shows that the ensemble averaging inherent in many experiments leads to an underestimation of coherence lifetimes in individual systems.

Pelzer, Kenley M.; Griffin, Graham B.; Engel, Gregory S. [James Franck Institute and Department of Chemistry, University of Chicago, Chicago, Illinois 60637 (United States); Gray, Stephen K. [Center for Nanoscale Materials, Argonne National Laboratory, Argonne, Illinois 60439 (United States)

2012-04-28T23:59:59.000Z

108

A prospective randomized multicenter clinical trial of the Provox2 and Groningen Ultra Low Resistance voice prostheses in the rehabilitation of post-laryngectomy patients: A lifetime and preference study  

Science Journals Connector (OSTI)

Summary To prospectively study patients preference for and the lifetime of the Groningen Ultra Low Resistance (GULR) and Provox2 tracheo-esophageal shunt prosthesis (TESP, plural TESPs) in post-laryngectomy patients. Eighty post-laryngectomy patients were included in 4 oncological centers in the Netherlands. We used a repeated measures design study with 4 randomized groups in a partial cross-over design using 3 consecutive \\{TESPs\\} (3 intervals) in different orders. (Group 1: GULR-GULR-GULR; Group 2: GULR-GULR-Provox2; Group 3: Provox2-Provox2-GULR; and Group 4: Provox2- Provox2-Provox2). Replacement dates and reasons for replacement were monitored with questionnaires as were patients preferences for GULR or Provox2. A great variability of lifetime within and between groups was seen. Mean lifetimes found (all groups and intervals added) were 106.2 and 102.7days, and median lifetimes were 76 and 65days for GULR and Provox2, respectively. Lifetime showed no significant differences between groups, intervals, and TESP types. Many patients dropped out due to reasons having to do with GULR-characteristics (n=21). The main dropout reason was high phonating resistance (HPR) (57.1%). Only 10 patients preferred GULR. A significantly larger number of patients (n=39, 79.6%) preferred Provox2 either by choice or by dropping out due to GULR-characteristics (P<0.001). The main replacement reasons were leakage though TESP (GULR 59.1%, Provox2 52.1%) and HPR (GULR 15.9%, Provox2 12.7%). No significant differences in lifetime between GULR and Provox2 were found. The patients preference for Provox2 was significant (P<0.001). Patients preference was a more important outcome measurement in TESP effectiveness than device lifetime.

Kim Harms; Wendy J. Post; Klaas T. van de Laan; Frank J.A. van den Hoogen; Simone E.J. Eerenstein; Bernard F.A.M. van der Laan

2011-01-01T23:59:59.000Z

109

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

110

B{sup +} and B{sup 0} mean lifetime measurements  

SciTech Connect (OSTI)

We review B{sup +} and B{sup 0} mean lifetime measurements, including direct measurements and determination of the lifetime ratio via measurements of the ratios of branching ratios. We present world averages.

DeJongh, F.

1994-08-01T23:59:59.000Z

111

What to Expect When You're Expecting: Femtoscopy at the LHC  

E-Print Network [OSTI]

A huge systematics of femtoscopic measurements have been used over the past 20 years to characterize the system created in heavy ion collisions. These measurements cover two orders of magnitude in energy, and with LHC beams imminent, this range will be extended by more than another order of magnitude. Here, I discuss theoretical expectations of femtoscopy of $A+A$ and $p+p$ collisions at the LHC, based on Boltzmann and hydrodynamic calculations, as well as on naive extrapolation of existing systematics.

Mike Lisa

2007-01-20T23:59:59.000Z

112

Public Affairs Office: Livermore Lab Physicist Dates Lifetime of Solar  

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

Dating the Solar System: Where Were You When the Solar System Was Being Formed? Dating the Solar System: Where Were You When the Solar System Was Being Formed? Chemistry & Materials Science Directorate, LLNL Chronology of the early Solar System from chondrule-bearing calcium-aluminium-rich inclusions Nature, April 21, 2005 Building Planets at PSI: The Origin of the Solar System Planetary Science Institute Social Media Logos Follow LLNL on YouTube Subscribe to LLNL's RSS feed Follow LLNL on Facebook Follow LLNL on Twitter Follow LLNL on Flickr Contact: Anne M. Stark Phone: (925) 422-9799 E-mail: stark8@llnl.gov FOR IMMEDIATE RELEASE April 20, 2005 NR-05-04-02 Livermore Lab physicist dates lifetime of solar nebula at two million years LIVERMORE, Calif. - The oxygen and magnesium content of some of the oldest objects in the universe are giving clues to the lifetime of the

113

CMS HF calorimeter PMTs and Xi(c)+ lifetime measurement  

SciTech Connect (OSTI)

This thesis consists of two parts: In the first part we describe the Photomultiplier Tube (PMT) selection and testing processes for the Hadronic Forward (HF) calorimeter of the CMS, a Large Hadron Collier (LHC) experiment at CERN. We report the evaluation process of the candidate PMTs from three different manufacturers, the complete tests performed on the 2300 Hamamatsu PMTs which will be used in the HF calorimeter, and the details of the PMT Test Station that is in University of Iowa CMS Laboratories. In the second part we report the {Xi}{sub c}{sup +} lifetime measurement from SELEX, the charm hadro-production experiment at Fermilab. Based upon 301 {+-} 31 events from three di.erent decay channels, by using the binned maximum likelihood technique, we observe the lifetime of {Xi}{sub c}{sup +} as 427 {+-} 31 {+-} 13 fs.

Akgun, Ugur; /Iowa U.

2003-12-01T23:59:59.000Z

114

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

115

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

116

Vehicle Technologies Office: Fact #328: July 12, 2004 Expected Average  

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

8: July 12, 2004 8: July 12, 2004 Expected Average Annual Miles to someone by E-mail Share Vehicle Technologies Office: Fact #328: July 12, 2004 Expected Average Annual Miles on Facebook Tweet about Vehicle Technologies Office: Fact #328: July 12, 2004 Expected Average Annual Miles on Twitter Bookmark Vehicle Technologies Office: Fact #328: July 12, 2004 Expected Average Annual Miles on Google Bookmark Vehicle Technologies Office: Fact #328: July 12, 2004 Expected Average Annual Miles on Delicious Rank Vehicle Technologies Office: Fact #328: July 12, 2004 Expected Average Annual Miles on Digg Find More places to share Vehicle Technologies Office: Fact #328: July 12, 2004 Expected Average Annual Miles on AddThis.com... Fact #328: July 12, 2004 Expected Average Annual Miles Twenty-five percent of the respondents to a nationwide survey said that

117

Texas--State Offshore Natural Gas Plant Liquids, Expected Future...  

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

Expected Future Production (Million Barrels) Texas--State Offshore Natural Gas Plant Liquids, Expected Future Production (Million Barrels) Decade Year-0 Year-1 Year-2 Year-3 Year-4...

118

Gulf of Mexico Federal Offshore Dry Natural Gas Expected Future...  

Gasoline and Diesel Fuel Update (EIA)

Expected Future Production (Billion Cubic Feet) Gulf of Mexico Federal Offshore Dry Natural Gas Expected Future Production (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3...

119

Star formation in Perseus: II. SEDs, classification and lifetimes  

E-Print Network [OSTI]

Working with the submillimetre continuum map of the Perseus molecular cloud (Hatchell et al. 2005), we aimed to determine the evolutionary stage of each submm core in Perseus, and investigate the lifetimes of these phases. We compile spectral energy distributions (SEDs) from 2MASS, Spitzer IRAC, Michelle, IRAS, SCUBA and Bolocam data. Sources are classified starless/protostellar on the basis of infrared and/or outflow detections and Class I/Class 0 on the basis of Tbol, Lbol/Lsmm and F_{3.6}/F_{850}. In order to investigate the dependence of these evolutionary indicators on mass, we construct radiative transfer models of Class 0 sources. Of the submm cores, 56/103 (54%) are confirmed protostars on the basis of infrared emission or molecular outflows. Of these, 22 are classified Class 1 on the basis of three evolutionary indicators, 34 are Class 0, and the remaining 47 are assumed starless. Perseus contains a much greater fraction of Class 0 sources than either Taurus or Rho Oph. Comparing the protostellar with the T Tauri population, the lifetime of the protostellar phase in Perseus is 0.25-0.67 Myr (95% confidence limits). The relative lifetime of the Class 0 and Class 1 phases are similar. We find that for the same source geometry but different masses, evolutionary indicators such as Tbol vary their value. It is therefore not always appropriate to use a fixed threshold to separate Class 0 and Class I sources. More modelling is required to determine the observational characteristics of the Class 0/Class I boundary over a range of masses.

J. Hatchell; G. A. Fuller; J. S. Richer; T. J. Harries; E. F. Ladd

2006-12-20T23:59:59.000Z

120

Lifetime of 981-Kev State in Li-8  

E-Print Network [OSTI]

PHYSICAL REVIEW C VOLUME 3, NUMBER 2 FEBRUARY 1971 Lifetime of the 981-keV State in Li ~ M. J. Throop* University of Iosoa, Iozea City, Ious 52240 and D. H. Youngblood Texas A. @M University, College Station, Texas 77843 and G. C. Morrison...- tify contaminant peaks, spectra were obtained for C and 0 targets at a Liv energy of 7.4 MeV. In Fig. 2, the peaks from the Li7+ C reaction are those at 871 keV (from the 0.871 0.0-MeV trans- ition in 0") and at 960 keV (the double-escape peak from...

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

1971-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "median expected lifetime" 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

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

122

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

123

Free electron lifetime achievements in Liquid Argon Imaging TPC  

E-Print Network [OSTI]

A key feature for the success of the Liquid Argon TPC technology is the industrial purification against electro-negative impurities, especially Oxygen and Nitrogen remnants, which have to be initially and continuously kept at an exceptional purity. New purification techniques have been applied to a 120 litres LAr-TPC test facility in the INFN-LNL laboratory. Through-going muon tracks have been used to monitor the LAr purity. The short path length used (30 cm) is compensated by the high accuracy in the observation of the specific ionization of cosmic rays muons at sea level. A free electron lifetime of (21.4+7.3-4.3) ms, namely > 15.8 ms at 90 % C.L. has been observed under stable conditions over several weeks, corresponding to about 15 ppt (part per trillion) of Oxygen equivalent. At 500 V/cm, where the electron speed is approximately of 1.5 mm/us, the free electron lifetime >15 ms corresponds to an attenuation <15 % for a drift path of 5 m, opening the way to reliable operation of LAr TPC for exceptionall...

Baibussinov, B; Calligarich, E; Centro, S; Cieslik, K; Farnese, C; Fava, A; Gibin, D; Guglielmi, A; Meng, G; Pietropaolo, F; Rubbia, C; Varanini, F; Ventura, S

2010-01-01T23:59:59.000Z

124

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

125

Scientists detect methane levels three times larger than expected...  

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

methane that actually preceded recent concerns about potential emissions from fracking," Dubey said. Scientists detect methane levels three times larger than expected over...

126

,"New York Dry Natural Gas Expected Future Production (Billion...  

U.S. Energy Information Administration (EIA) Indexed Site

Name","Description"," Of Series","Frequency","Latest Data for" ,"Data 1","New York Dry Natural Gas Expected Future Production (Billion Cubic Feet)",1,"Annual",2013...

127

,"California State Offshore Dry Natural Gas Expected Future Production...  

U.S. Energy Information Administration (EIA) Indexed Site

Of Series","Frequency","Latest Data for" ,"Data 1","California State Offshore Dry Natural Gas Expected Future Production (Billion Cubic Feet)",1,"Annual",2013...

128

,"Lower 48 Federal Offshore Natural Gas Plant Liquids, Expected...  

U.S. Energy Information Administration (EIA) Indexed Site

Of Series","Frequency","Latest Data for" ,"Data 1","Lower 48 Federal Offshore Natural Gas Plant Liquids, Expected Future Production (Million Barrels)",1,"Annual",2...

129

,"Texas--State Offshore Natural Gas Plant Liquids, Expected Future...  

U.S. Energy Information Administration (EIA) Indexed Site

Of Series","Frequency","Latest Data for" ,"Data 1","Texas--State Offshore Natural Gas Plant Liquids, Expected Future Production (Million Barrels)",1,"Annual",2...

130

,"Alaska (with Total Offshore) Natural Gas Plant Liquids, Expected...  

U.S. Energy Information Administration (EIA) Indexed Site

Of Series","Frequency","Latest Data for" ,"Data 1","Alaska (with Total Offshore) Natural Gas Plant Liquids, Expected Future Production (Million Barrels)",1,"Annual",...

131

,"Federal Offshore--California Natural Gas Plant Liquids, Expected...  

U.S. Energy Information Administration (EIA) Indexed Site

Name","Description"," Of Series","Frequency","Latest Data for" ,"Data 1","Federal Offshore--California Natural Gas Plant Liquids, Expected Future Production (Million...

132

,"California--State Offshore Natural Gas Plant Liquids, Expected...  

U.S. Energy Information Administration (EIA) Indexed Site

Of Series","Frequency","Latest Data for" ,"Data 1","California--State Offshore Natural Gas Plant Liquids, Expected Future Production (Million Barrels)",1,"Annual",2...

133

,"Texas (with State Offshore) Natural Gas Plant Liquids, Expected...  

U.S. Energy Information Administration (EIA) Indexed Site

Of Series","Frequency","Latest Data for" ,"Data 1","Texas (with State Offshore) Natural Gas Plant Liquids, Expected Future Production (Million Barrels)",1,"Annual",...

134

,"Louisiana--State Offshore Natural Gas Plant Liquids, Expected...  

U.S. Energy Information Administration (EIA) Indexed Site

Of Series","Frequency","Latest Data for" ,"Data 1","Louisiana--State Offshore Natural Gas Plant Liquids, Expected Future Production (Million Barrels)",1,"Annual",2...

135

,"Texas State Offshore Dry Natural Gas Expected Future Production...  

U.S. Energy Information Administration (EIA) Indexed Site

ame","Description"," Of Series","Frequency","Latest Data for" ,"Data 1","Texas State Offshore Dry Natural Gas Expected Future Production (Billion Cubic Feet)",1,"Annual",2013...

136

,"Alabama (with State Offshore) Natural Gas Plant Liquids, Expected...  

U.S. Energy Information Administration (EIA) Indexed Site

Of Series","Frequency","Latest Data for" ,"Data 1","Alabama (with State Offshore) Natural Gas Plant Liquids, Expected Future Production (Million Barrels)",1,"Annual",...

137

,"Federal Offshore--Texas Natural Gas Plant Liquids, Expected...  

U.S. Energy Information Administration (EIA) Indexed Site

Name","Description"," Of Series","Frequency","Latest Data for" ,"Data 1","Federal Offshore--Texas Natural Gas Plant Liquids, Expected Future Production (Million...

138

,"Louisiana State Offshore Dry Natural Gas Expected Future Production...  

U.S. Energy Information Administration (EIA) Indexed Site

Of Series","Frequency","Latest Data for" ,"Data 1","Louisiana State Offshore Dry Natural Gas Expected Future Production (Billion Cubic Feet)",1,"Annual",2013...

139

,"California Federal Offshore Dry Natural Gas Expected Future...  

U.S. Energy Information Administration (EIA) Indexed Site

Of Series","Frequency","Latest Data for" ,"Data 1","California Federal Offshore Dry Natural Gas Expected Future Production (Billion Cubic Feet)",1,"Annual",2013...

140

Reliability Models for Facility Location: The Expected Failure Cost ...  

E-Print Network [OSTI]

Reliability Models for Facility Location: The Expected Failure Cost Case. Lawrence V. Snyder (larry.snyder ***at*** lehigh.edu) Mark S. Daskin (m-daskin *

Lawrence V. Snyder

Note: This page contains sample records for the topic "median expected lifetime" 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

The lifetime and failure strain prediction of Zircaloy-4 cladding loaded under loca-similar temperature ramp conditions  

SciTech Connect (OSTI)

The life fraction rule is applied to predict the time to failure of internally pressurized Zircaloy-4 cladding tubes subjected to temperature ramps similar to those expected in a hypothetical loss-of-coolant accident. For given loading conditions, the calculations are solely based on data from uniaxial stress rupture tests. No fitting procedure is involved in the comparison between prediction and results of burst tests. This evidently is an advantage of the present procedure. The agreement between the results of calculations and experiments is good. A modified Monkman-Grant (MMG) relationship, which connects the lifetime with the minimum creep rate and the strain to failure, is used to predict the failure strain of Zircaloy-4 cladding subjected to temperature ramps. This problem turned out to be more complicated than the prediction of lifetime. Contrary to the latter, due to the anisotropy of strain, data from burst experiments enter into the failure strain calculations. Thus the applicability of this method in the present form is restricted to particular loading conditions. However, considering the complexities of the problem, the agreement between experiments and calculations is encouraging.

Bocek, M.; Petersen, C.; Schmidt, L.

1983-09-01T23:59:59.000Z

142

Measurements of aperture and beam lifetime using movable beam scrapers in Indus-2 electron storage ring  

SciTech Connect (OSTI)

In this paper, the measurements of vertical and horizontal aperture which are available for stable beam motion in Indus-2 at beam energy 2.5 GeV using movable beam scrapers are presented. These beam scrapers are installed in one of the long straight sections in the ring. With the movement of beam scrapers towards the beam centre, the beam lifetime is measured. The beam lifetime data obtained from the movement of vertical and horizontal beam scrapers are analyzed. The contribution of beam loss due to beam-gas scattering (vacuum lifetime) and electron-electron scattering within a beam bunch (Touschek lifetime) is separated from the measured beam lifetime at different positions of the beam scrapers. Vertical and horizontal beam sizes at scrapers location are estimated from the scraper movement towards the beam centre in quantum lifetime limit and their values closely agree with measured value obtained using X-ray diagnostic beamline.

Kumar, Pradeep; Ghodke, A. D.; Karnewar, A. K.; Holikatti, A. C.; Yadav, S.; Puntambekar, T. A.; Singh, G. [Raja Ramanna Centre for Advanced Technology, Indore 452013 (India)] [Raja Ramanna Centre for Advanced Technology, Indore 452013 (India); Singh, P. [Bhabha Atomic Research Centre, Mumbai (India)] [Bhabha Atomic Research Centre, Mumbai (India)

2013-12-15T23:59:59.000Z

143

Thermalization, Error Correction, and Memory Lifetime for Ising Anyon Systems  

Science Journals Connector (OSTI)

We consider two-dimensional lattice models that support Ising anyonic excitations and are coupled to a thermal bath. We propose a phenomenological model for the resulting short-time dynamics that includes pair creation, hopping, braiding, and fusion of anyons. By explicitly constructing topological quantum error-correcting codes for this class of system, we use our thermalization model to estimate the lifetime of the quantum information stored in the encoded spaces. To decode and correct errors in these codes, we adapt several existing topological decoders to the non-Abelian setting. We perform large-scale numerical simulations of these two-dimensional Ising anyon systems and find that the thresholds of these models range from 13% to 25%. To our knowledge, these are the first numerical threshold estimates for quantum codes without explicit additive structure.

Courtney G. Brell; Simon Burton; Guillaume Dauphinais; Steven T. Flammia; David Poulin

2014-09-30T23:59:59.000Z

144

Lifetime of nuclear velocity dispersion drops in barred galaxies  

E-Print Network [OSTI]

We have made hydro/N-body simulations with and without star formation to shed some light on the conditions under which a central kinematically cold stellar component (characterized by a velocity dispersion drop or \\sigma-drop) could be created in a hot medium (e.g. a bulge) and survive enough time to be observed. We found that the timescale for a \\sigma-drop formation could be short (less than 500 Myr) whereas its lifetime could be long (more than 1 Gyr) provided that the central region is continuously or regularly fed by fresh gas which leads to a continuous star formation activity. Star formation in the central region, even at a low rate as 1M_{sol} yr^{-1}, is mandatory to sustain a permanent \\sigma-drop by replacing heated particles by new low-\\sigma ones. We moreover show that as soon as star formation is switched off, the \\sigma-drop begins to disappear.

Herve Wozniak; Nicolas Champavert

2006-03-29T23:59:59.000Z

145

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

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

the trapped atom lifetime... and atomic gases are sufficiently stable against inelas- tic decay. In ... Source: Jin, Deborah - JILA, University of Colorado at Boulder...

146

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

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

0022-37274221214008 Summary: ) doi:10.10880022-37274221214008 Subcritical crack growth law and its consequences for lifetime... , the probability distribution of...

147

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

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

spectroscopy... us the information on the exciton lifetime and exciton coherence time. It is therefore needed... to perform micro-photoluminescence (PL) spectroscopy...

148

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...

149

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 ......

150

Enhancing Lifetime Reliability Of Chip Multiprocessors Through 3D Resource Sharing  

E-Print Network [OSTI]

macroscopic distribution of failures in reliability design.in reliability analysis than the exponential distribution [distributions can be used to provide a methodology for simulating lifetime reliability

Strikos, Nikolaos

151

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

152

Property:EZFeed/ExpectedCapacity | Open Energy Information  

Open Energy Info (EERE)

ExpectedCapacity ExpectedCapacity Jump to: navigation, search Property Name EZFeed/ExpectedCapacity Property Type String Description EZFeed Expected Capacity property Subproperties This property has the following 6081 subproperties: 2 2003 Climate Change Fuel Cell Buy-Down Program (Federal) 3 30% Business Tax Credit for Solar (Vermont) 4 401 Certification (Vermont) A AEP (Central and North) - CitySmart Program (Texas) AEP (Central and North) - Residential Energy Efficiency Programs (Texas) AEP (Central and SWEPCO) - Coolsaver A/C Tune Up (Texas) AEP (Central, North and SWEPCO) - Commercial Solutions Program (Texas) AEP (SWEPCO) - Residential Energy Efficiency Programs (Texas) AEP Appalachian Power - Commercial and Industrial Rebate Programs (West Virginia) AEP Appalachian Power - Residential Home Retrofit Program (West Virginia)

153

Syllabus for MA 15400Y Online Section Summer 2014 Expectations ...  

E-Print Network [OSTI]

Online Section. Summer 2014. Expectations: ... a) If ten students receive an A, according to the four-exam cut-offs, the first 10 students, on the list of total points,

Roames, Renee S

2014-06-19T23:59:59.000Z

154

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 or using intermediate hop nodes. For a given node constellation, there ex- ist many wireless connection trees to do this. For a known node constellation, the maximum lifetime of a single tree is equal

Arabshahi, Payman

155

A simple approach to lifetime learning in genetic programming-based symbolic regression  

Science Journals Connector (OSTI)

Genetic programming GP coarsely models natural evolution to evolve computer programs. Unlike in nature, where individuals can often improve their fitness through lifetime experience, the fitness of GP individuals generally does not change during their ... Keywords: Genetic programming, hybrid genetic algorithms, lifetime learning, local search, memetic algorithms, symbolic regression

Raja Muhammad Atif Azad; Conor Ryan

2014-06-01T23:59:59.000Z

156

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

157

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

158

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

159

Influence of Fe Contamination on the Minority Carrier Lifetime of Multi-crystalline Silicon  

Science Journals Connector (OSTI)

We investigate the influence of Fe contamination on the minority carrier lifetimes of multi-crystalline silicon. The minority carrier lifetime is measured by the microwave photoconductive decay method. The original bulk lifetime is about 30 ?s after passivation with iodine solution. After intentional Fe contamination, the bulk lifetime declines with increasing temperature. Fast cooling in air conduces to the formation of more interstitial Fe ([Fe]i). Slow cooling through the control of the furnace temperature limits the formation of more [Fe]i, but leads to the formation of precipitation. The data support the idea that the minority carrier lifetime in multi-crystalline silicon mainly depends on the distribution of Fe but not the total amount. A favorite effect of [Fe]i gettering is discovered after conventional phosphorus diffusion, and the [Fe]i concentration remaining in the silicon wafer is acceptable for solar cell applications.

Meng Xia-Jie; Ma Zhong-Quan; Li Feng; Shen Cheng; Yin Yan-Ting; Zhao Lei; Li Yong-Hua; Xu Fei

2010-01-01T23:59:59.000Z

160

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

Note: This page contains sample records for the topic "median expected lifetime" 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

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

162

Lifetime measurements in {sup 63}Co and {sup 65}Co  

SciTech Connect (OSTI)

Lifetimes of the 9/2{sub 1}{sup -} and 3/2{sub 1}{sup -} states in {sup 63}Co and the 9/2{sub 1}{sup -} state in {sup 65}Co were measured using the recoil distance Doppler shift and the differential decay curve methods. The nuclei were populated by multinucleon transfer reactions in inverse kinematics. {gamma} rays were measured with the EXOGAM Ge array and the recoiling fragments were fully identified using the large-acceptance VAMOS spectrometer. The E2 transition probabilities from the 3/2{sub 1}{sup -} and 9/2{sub 1}{sup -} states to the 7/2{sup -} ground state could be extracted in {sup 63}Co as well as an upper limit for the 9/2{sub 1}{sup -}{yields}7/2{sub 1}{sup -} B(E2) value in {sup 65}Co. The experimental results were compared to large-scale shell-model calculations in the pf and pfg{sub 9/2} model spaces, allowing us to draw conclusions on the single-particle or collective nature of the various states.

Dijon, A.; Clement, E.; France, G. de; Van Isacker, P.; Rejmund, M.; Schmitt, C. [Grand Accelerateur National d'Ions Lourds (GANIL), CEA/DSM-CNRS/IN2P3, Boulevard H. Becquerel, F-14076, Caen (France); Ljungvall, J. [Grand Accelerateur National d'Ions Lourds (GANIL), CEA/DSM-CNRS/IN2P3, Boulevard H. Becquerel, F-14076, Caen (France); CSNSM, CNRS/IN2P3, 91400 Orsay, Cedex (France); CEA Saclay, IRFU, SPHN, F-91191 Gif-sur-Yvette (France); Goergen, A. [CEA Saclay, IRFU, SPHN, F-91191 Gif-sur-Yvette (France); Department of Physics, University of Oslo, N-0316 Oslo (Norway); Obertelli, A.; Korten, W. [CEA Saclay, IRFU, SPHN, F-91191 Gif-sur-Yvette (France); Dewald, A.; Hackstein, M.; Pissulla, Th.; Rother, W.; Zell, K. O. [Institut fuer Kernphysik, Universitaet zu Koeln, D-50937 Koeln (Germany); Gadea, A. [Instituto de Fisica Corpuscular, CSIC-University of Valencia, E-46071 Valencia (Spain); Gaudefroy, L. [CEA, DAM, DIF, F-91297 Arpajon (France); Mengoni, D. [Dipartimentito di Fisica dell'Universita and INFN, I-35131 Padova (Italy); University of the West of Scotland, Paisley (United Kingdom); Recchia, F. [Dipartimentito di Fisica dell'Universita and INFN, I-35131 Padova (Italy); Sahin, E. [LNL - INFN, Laboratori Nazionali di Legnaro, I-35020 Legnaro (Italy)

2011-06-15T23:59:59.000Z

163

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

164

Accelerated stress rupture lifetime assessment for fiber composites  

SciTech Connect (OSTI)

Objective was to develop a theoretical and experimental framework for predicting stress rupture lifetime for fiber polymer composites based on short-term accelerated testing. Originally a 3-year project, it was terminated after the first year, which included stress rupture experiments and viscoelastic material characterization. In principle, higher temperature, stress, and saturated environmental conditions are used to accelerate stress rupture. Two types of specimens were to be subjected to long-term and accelerated static tensile loading at various temperatures, loads in order to quantify both fiber and matrix dominated failures. Also, we were to apply state-of-the-art analytical and experimental characterization techniques developed under a previous DOE/DP CRADA for capturing and tracking incipient degradation mechanisms associated with mechanical performance. Focus was increase our confidence to design, analyze, and build long-term composite structures such as flywheels and hydrogen gas storage vessels; other applications include advanced conventional weapons, infrastructures, marine and offshore systems, and stockpile stewardship and surveillance. Capabilities developed under this project, though not completed or verified, are being applied to NIF, AVLIS, and SSMP programs.

Groves, S.E.; DeTeresa, S.J.; Sanchez, R.J.; Zocher, M.A.; Christensen, R.M.

1997-02-01T23:59:59.000Z

165

Lifetime measurements in $^{63}$Co and $^{65}$Co  

E-Print Network [OSTI]

Lifetimes of the $9/2^-_1$ and $3/2^-_1$ states in $^{63}$Co and the $9/2^-_1$ state in $^{65}$Co were measured using the recoil distance Doppler shift and the differential decay curve methods. The nuclei were populated by multi-nucleon transfer reactions in inverse kinematics. Gamma rays were measured with the EXOGAM Ge array and the recoiling fragments were fully identified using the large-acceptance VAMOS spectrometer. The E2 transition probabilities from the $3/2^-_1$ and $9/2^-_1$ states to the $7/2^-$ ground state could be extracted in $^{63}$Co as well as an upper limit for the $9/2^-_1\\rightarrow7/2^-_1$ $B$(E2) value in $^{65}$Co. The experimental results were compared to large-scale shell-model calculations in the $pf$ and $pfg_{9/2}$ model spaces, allowing to draw conclusions on the single-particle or collective nature of the various states.

A. Dijon; E. Clment; G. De France; P. Van Isacker; J. Ljungvall; A. Grgen; A. Obertelli; W. Korten; A. Gadea; L. Gaudefroy; M. Hackstein; D. Mengoni; Th. Pissulla; F. Recchia; M. Rejmund; W. Rother; E. Sahin; C. Schmitt; A. Shrivastava; J. J. Valiente-Dobon; K. O. Zell; M. Zielinska

2011-06-14T23:59:59.000Z

166

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

167

Renewable Energy Market Expectations and Trends Webinar | Department of  

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

Market Expectations and Trends Webinar Market Expectations and Trends Webinar Renewable Energy Market Expectations and Trends Webinar September 4, 2013 11:00AM MDT Webinar The U.S. Department of Energy (DOE) Office of Indian Energy Policy and Programs, Office of Energy Efficiency and Renewable Energy Tribal Energy Program, and Western Area Power Administration (WAPA) are pleased to continue their sponsorship of the Tribal Renewable Energy Webinar Series. The webinar will be held from 11 a.m. to 12:30 p.m. Mountain time. The growth and pace of the renewable energy market will be driven by many factors, including awareness and concern over remaining non-renewable resources, the need for imported energy and the security issues surrounding that need, and government support and financial incentives. Participants

168

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

169

Lifetimes of atoms trapped in an optical lattice in proximity of a surface  

Science Journals Connector (OSTI)

We study the lifetime of an atom trapped in an optical vertical lattice in proximity of a massive surface using a complex-scaling approach. We analyze how the presence of the surface modifies the known lifetimes of Wannier-Stark states associated with Landau-Zener tunneling. We also investigate how the existence of a hypothetical short-distance deviation from Newton's gravitational law could affect these lifetimes. Our study is relevant in order to discuss the feasibility of any atomic-interferometry experiment performed near a surface. Finally, the difficulties encountered in applying the complex-scaling approach to the atom-surface Casimir-Polder interaction are addressed.

Sophie Pelisson; Riccardo Messina; Marie-Christine Angonin; Peter Wolf

2013-07-15T23:59:59.000Z

170

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.

171

The Railway Mania: Fraud, disappointed expectations, and the modern economy  

E-Print Network [OSTI]

The Railway Mania: Fraud, disappointed expectations, and the modern economy Andrew Odlyzko School the Railway Mania with fraud, with companies "paying dividends out of capital." A paper by Arnold and Mc powerful figure in the railway industry, he was shown in early 1849 to have committed accounting fraud

Odlyzko, Andrew M.

172

What to Expect from ETDs: Library Issues and Responsibilities  

E-Print Network [OSTI]

­ Serve more clients with fewer staff I Save money I Save space #12;Library may Introduce Faculty to ETDs web sites I Faculty concerns ­ Does the Library have enough server space? ­ Network response timeWhat to Expect from ETDs: Library Issues and Responsibilities Gail McMillan (gailmac

Beex, A. A. "Louis"

173

Sustainable Living Facilities (SLF) Requirements, Expectations, Pledge and Agreement  

E-Print Network [OSTI]

1 Sustainable Living Facilities (SLF) Requirements, Expectations, Pledge and Agreement 2013-2014 Living in SLF entails responsibilities corresponding with the Ramapo College's mission to prepare its graduates to live a sustainable lifestyle. While SLF is a great opportunity for students to support

Rainforth, Emma C.

174

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...

175

Modeling Minority-Carrier Lifetime Techniques That Use Transient Excess-Carrier Decay: Preprint  

SciTech Connect (OSTI)

Lifetime spectroscopy is a valuable tool for the characterization of PV materials. This paper combines modeling and experimental results to illustrate the injection-level dependent response of three transient excess-carrier decay techniques.

Johnston, S. W.; Berman, G. M.; Ahrenkiel, R. K.

2008-05-01T23:59:59.000Z

176

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

177

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

178

Micro- and Sub-nanosecond Lifetime Measurements Using a UV Light-Emitting Diode  

Science Journals Connector (OSTI)

The authors describe the use of an ultraviolet light-emitting diode (UV LED), Nichia NSHU590E, as a 373 nm excitation light source for fluorescence lifetime measurements. A...

Szmacinski, Henryk; Chang, Qing

2000-01-01T23:59:59.000Z

179

Energy-level and lifetime measurements for Sb iv and Sb v  

Science Journals Connector (OSTI)

A study of the beam-foil spectrum produced by a 1-MeV beam of antimony ions has yielded lifetimes for nine lowlying terms of Sb iv and six of Sb v. Decay-curve analysis incorporating...

Pinnington, E H; Ansbacher, W; Kernahan, J A; Gosselin, R N; Bahr, J L; Inamdar, A S

1985-01-01T23:59:59.000Z

180

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

Note: This page contains sample records for the topic "median expected lifetime" 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

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

182

Muon capture in Ar. The muon lifetime and yields of Cl isotopes  

Science Journals Connector (OSTI)

The time and energy spectra of ? rays, accompanying negative muon capture in a 40Ar target, have been measured using Ge detectors. The results of measuring the muon lifetime in 40Ar and yields of different Cl and...

A. V. Klinskikh; S. Brianson; V. B. Brudanin

2008-06-01T23:59:59.000Z

183

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

184

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

185

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

186

Lifetime measurement in the proton-unbound nucleus {sup 109}I  

SciTech Connect (OSTI)

The Recoil-Distance Doppler-shift method has been combined with Recoil-Decay Tagging for the first time to measure a lifetime in the proton-unbound nucleus {sup 109}I. The lifetime value was determined using the Differential Decay-Curve method in singles mode. The result has been compared to theoretical shell-model calculations in order to better understand the nature of unbound valence nucleons at the proton drip line.

Procter, M. G.; Lumley, N. M.; Mason, P. J. R.; Taylor, M. J. [Schuster Laboratory, University of Manchester, Manchester M13 9PL (United Kingdom); Cullen, D. M. [Schuster Laboratory, University of Manchester, Manchester M13 9PL (United Kingdom); Department of Physics, University of Jyvaeskylae, FIN-40014 Jyvaeskylae (Finland); Ruotsalainen, P.; Scholey, C.; Jakobsson, U.; Jones, P. M.; Julin, R.; Juutinen, S.; Ketelhut, S.; Leino, M.; Nieminen, P.; Peura, P.; Rahkila, P.; Sandzelius, M.; Saren, J.; Sorri, J.; Uusitalo, J. [Department of Physics, University of Jyvaeskylae, FIN-40014 Jyvaeskylae (Finland); and others

2011-11-30T23:59:59.000Z

187

EVOLUTION AND LIFETIME OF TRANSIENT CLUMPS IN THE TURBULENT INTERSTELLAR MEDIUM  

SciTech Connect (OSTI)

We study the evolution of dense clumps and provide an argument that the existence of the clumps is not limited by their crossing times. We claim that the lifetimes of the clumps are determined by turbulent motions on a larger scale, and we predict the correlation of clump lifetime with column density. We use numerical simulations to successfully test this relation. In addition, we study the morphological asymmetry and the magnetization of the clumps as functions of their masses.

Falceta-Goncalves, D. [Escola de Artes, Ciencias e Humanidades, Universidade de Sao Paulo-Rua Arlindo Bettio 1000, CEP 03828-000, Sao Paulo (Brazil); Lazarian, A. [Astronomy Department, University of Wisconsin, Madison, 475 North Charter Street, WI 53711 (United States)

2011-07-10T23:59:59.000Z

188

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

189

Duopoly Interaction and Expected Price for Local Access Running Heading: Duopoly Interaction and Expected Price for Local Access  

E-Print Network [OSTI]

estimate what prices consumers might pay (and the associated penetration rates) for local access if two, the expected penetration rates for households within the study areas would be substantially lower than the current U.S. average household penetration rate, which suggests that liberalization and deregulation

190

Property and lifetime prediction in aged U-Nb alloys: a statistical assessment  

SciTech Connect (OSTI)

This study was undertaken to better model the aging response of U-Nb alloys, particularly to predict properties and their scatter bands, from which lifetimes and their uncertainties can be evaluated. Predictive models of the aging time- and temperature-dependencies of seven age-sensitive properties were developed for nonbanded U-5.6 wt% Nb and U-7.7 wt% Nb alloys. These properties were total and uniform plastic tensile elongation to failure; first-yield, second-yield, and ultimate tensile strengths; first-yield elastic modulus; and Vickers microhardness. A more systematic and statistically aware kinetics modeling approach than employed previously gave reasonable models fits to accelerated aging property data in nonbanded U-5.6Nb and U-7.7Nb, and useful predictions for most of the properties studied. With minor modifications, the U-5.6Nb model was extended to banded U-6Nb. This modeling approach shared many of the key assumptions of the previous approach, including the assumption of Arrhenius behavior and the use of three adjustable parameters. Initial data returns from long-term aging experiments were used to validate the fitted models, a new feature to this study. The apparent activation energies of aging for the property of greatest interest, total elongation, were 32 kcal/mol for U-5.6Nb and 39 kcal/mol for U-7.7Nb, respectively; those for the other properties spanned 1451 kcal/mol. Comparing the goodness of the model fits for the seven properties, the best fits were obtained for second-yield strength and hardness, the first-yield modulus fit the least well, and the other properties fits were in between. The U-5.6Nb models are more robust and therefore are expected to have better predictive power than those of U-7.7Nb, especially at the lower aging temperatures of interest. Model extrapolations to longer times (up to 5 years) and lower temperatures (as low as 40C) than those used for the model fitting agreed well with most of the validation data gathered for both nonbanded alloys, as well as banded U-6Nb, giving provisional validation of the fitted models. Property predictions for planned or already pending validation experiments are also provided. With a view towards enabling future modeling efforts, this report tabulates all replicate tensile properties and complete hardness scan data used for both model fitting and validation. For surveillance purposes, the properties most practically amenable to detecting the onset of aging at the earliest times are first-yield strength and second-yield strength. Even at aging temperatures as high as 60C, the minimum lifetimes from this present study are beyond 100 years, giving no cause for concern, if the previously developed failure criterion based on uniaxial tensile elongation (with its caveats) is accepted.

Robert E. Hackenberg; Geralyn M. Hemphill

2009-02-01T23:59:59.000Z

191

Expected Economic Benefits of the El Morillo Drain  

E-Print Network [OSTI]

Estimate of Costs for Treating All Potable Water With a Desalination Process Without the El Morillo Drain in South Texas, 2006 .............................. 15 1 Expected Economic Benefits of the El Morillo Drain Introduction For several years, salinity... of insight on the function and use of the El Morillo Drain, this report is designed to provide information to the general public regarding some characteristics of the Drain and how it is benefitting everyone that lives, works, and/or recreates in South Texas...

Lacewell, Ronald D.; Rister, M. Edward; Sturdivant, Allen W.; DuBois, Megan; Rogers, Callie; Seawright, Emily

2007-01-02T23:59:59.000Z

192

Expected annual electricity bill savings for various PPA price options |  

Open Energy Info (EERE)

Expected annual electricity bill savings for various PPA price options Expected annual electricity bill savings for various PPA price options Jump to: navigation, search Impact of Utility Rates on PV Economics Bill savings tables (main section): When evaluating PV systems under a PPA, it is important to look at the net effect on the building's annual electricity expense. If the solar value is greater than the PPA price, then the building will realize a net savings on annual energy expenses. If the solar value is less than the PPA price, then the building will realize a net loss. It is useful to understand how annual electricity expenses will be impacted at various PPA price levels. Bill Savings at PPA price of $0.04/kWhr Bill Savings at PPA price of $0.08/kWhr Bill Savings at PPA price of $0.12/kWhr Retrieved from "http://en.openei.org/w/index.php?title=Expected_annual_electricity_bill_savings_for_various_PPA_price_options&oldid=515464"

193

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

194

LastingNVCache: A Technique for Improving the Lifetime of Non-volatile Caches  

SciTech Connect (OSTI)

Use of NVM (Non-volatile memory) devices such as ReRAM (resistive RAM) and STT-RAM (spin transfer torque RAM) for designing on-chip caches holds the promise of providing a high-density, low-leakage alternative to SRAM. However, low write endurance of NVMs, along with the write-variation introduced by existing cache management schemes may significantly limit the lifetime of NVM caches. We present LastingNVCache, a technique for improving lifetime of NVM caches by mitigating the intra-set write variation. LastingNVCache works on the key idea that by periodically flushing a frequently-written data-item, the next time the block can be made to load into a cold block in the set. Through this, the future writes to that data-item can be redirected from a hot block to a cold block, which leads to improvement in the cache lifetime. Microarchitectural simulations have shown that LastingNVCache provides 6.36X, 9.79X, and 10.94X improvement in lifetime for single, dual and quad-core systems. Also, its implementation overhead is small and it outperforms a recently proposed technique for improving lifetime of NVM caches.

Mittal, Sparsh [ORNL] [ORNL; Vetter, Jeffrey S [ORNL] [ORNL; Li, Dong [ORNL] [ORNL

2014-01-01T23:59:59.000Z

195

Sudden Lifetime Drop Phenomena and their Effective Cures in PF-ring and PF-AR  

SciTech Connect (OSTI)

In PF-ring and PF-AR, sudden drops in the electron beam lifetime, which are attributed to dust trapping, were frequently observed after extensive renewals of the storage rings. The reduced-lifetime state sometimes lasts for a few hours, and the mitigation of this problem was strongly demanded for stable user operations. Since a major source of dust particles was thought to be a distributed ion pump (DIP), we attempted switching the DIPs off during user operations in both the rings. As a result, occurrence of the lifetime drops was almost completely suppressed during single-bunch mode in PF-ring, while the occurrence frequency was reduced by only 38% in PF-AR. We found that the lifetime drops were sometimes accompanied by a transient increase in the vacuum pressure at some discharge-prone devices. Based on the hypothesis that the harmful dust could be generated by an electric discharge in vacuum, we attempted the conditioning of these devices in PF-AR by storing 25% higher current than usual. By combination of the DIP-OFF operation and the high-current conditioning, the occurrence frequency of the lifetime drops in PF-AR was reduced by no less than 67%.

Tanimoto, Yasunori; Honda, Tohru; Uchiyama, Takashi; Nogami, Takashi [Accelerator Laboratory, High Energy Accelerator Research Organization (KEK), 1-1 Oho, Tsukuba, Ibaraki 305-0801 (Japan)

2010-06-23T23:59:59.000Z

196

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

197

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

SciTech Connect (OSTI)

We report precision measurements of the excited state lifetime of the 5p {sup 2}P{sub 1/2} and 5p {sup 2}P{sub 3/2} levels of a single trapped Cd{sup +} ion. Combining ion trap and ultrafast laser technologies, 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{+-}0.011 ns and 2.647{+-}0.010 ns for {sup 2}P{sub 1/2} and {sup 2}P{sub 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.

Moehring, D. L.; Blinov, B. B.; Gidley, D. W.; Kohn, R. N. Jr.; Madsen, M. J.; Sanderson, T. D.; Vallery, R. S.; Monroe, C. [FOCUS Center and Department of Physics, University of Michigan, Ann Arbor, Michigan 48109-1040 (United States)

2006-02-15T23:59:59.000Z

198

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-Franois [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

199

Expectations for old and new physics at high energy colliders  

SciTech Connect (OSTI)

During the past year, the first data from the SPS collider at CERN have become available. The initial results are only a glimpse at a new energy regime and we can reasonably expect an increase in the extent of the data by a factor of 10/sup 4/ to 10/sup 5/. Moreover, within a few years, the Fermilab Tevatron Collider will be in operation with a center of mass energy nearly four times as great as that at CERN. Beyond these machines are other possibilities: a high luminosity pp machine at Brookhaven with a center of mass energy of 0.8 TeV; a p anti p or pp machine in the LEP tunnel at CERN; a desetron in the southwestern United States with many TeV in the center of mass. The purpose of these lectures is to provide an orientation for the wealth of data that these machines will provide.

Cahn, R.N.

1982-12-01T23:59:59.000Z

200

B physics expected performances with the Compact Muon Solenoid detector  

SciTech Connect (OSTI)

We present here the future performances of the Compact Muon Solenoid detector for B physics. We show that CMS will contribute significantly to the CP violation parameter sin 2{beta} measurement with a precision of {delta} sin 2{beta}{approx_equal}0.02 (1 year of integrated luminosity). The asymetry in the channel B{sub s}{sup 0}{yields}J/{psi}{phi} will be tested to the 2-5% level. The mixing parameter x{sub s} of B{sub s}{sup 0} oscillations will be measured up to 40. Finaly the rare B decay should be searched down to the SM expectation and in the case of the semileptonic rare decays will provide enough statistics to performed detailed studies.

Charles, Francois [Groupe de Recherche en Physique des Hautes Energies, Universite de Haute Alsace, 61 rue A. Camus, 68093 Mulhouse (France)

1998-10-19T23:59:59.000Z

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


201

Environmental auditing of dross tollers: What can the toller expect  

SciTech Connect (OSTI)

The tolling, or processing for a fixed fee, of aluminum drosses to recover the metal units is a common practice in the Aluminum Industry. The Dross Toller is acting for the owner, and since most dross processes result in material going to landfill, it is important for the owner of the dross to insure that the toller is processing the material and handling waste disposal in an environmentally responsible manner. The paper discusses the Dross Toller Audit Program, first from the Reynolds Metals Company perspective. Included are the reasons the company deems it necessary to audit and a description of the items covered during the audit. Finally, there will be a discussion of the audit from the Tollers perspective -- what the Toller can expect when the auditor arrives.

Gwinner, D.S. [Reynolds Metals Co., Richmond, VA (United States)

1995-12-31T23:59:59.000Z

202

An Expectation-Maximization Method for Calibrating Synchronous Machine Models  

SciTech Connect (OSTI)

The accuracy of a power system dynamic model is essential to its secure and efficient operation. Lower confidence in model accuracy usually leads to conservative operation and lowers asset usage. To improve model accuracy, this paper proposes an expectation-maximization (EM) method to calibrate the synchronous machine model using phasor measurement unit (PMU) data. First, an extended Kalman filter (EKF) is applied to estimate the dynamic states using measurement data. Then, the parameters are calculated based on the estimated states using maximum likelihood estimation (MLE) method. The EM method iterates over the preceding two steps to improve estimation accuracy. The proposed EM methods performance is evaluated using a single-machine infinite bus system and compared with a method where both state and parameters are estimated using an EKF method. Sensitivity studies of the parameter calibration using EM method are also presented to show the robustness of the proposed method for different levels of measurement noise and initial parameter uncertainty.

Meng, Da; Zhou, Ning; Lu, Shuai; Lin, Guang

2013-07-21T23:59:59.000Z

203

Half-prophets and Robbins' Problem of Minimizing the Expected Rank  

E-Print Network [OSTI]

1993) Minimizing the expected rank with full information. J.Optimal selection based on relative ranks, Israel Journal ofMinimizing the Expected Rank F. THOMAS BRUSS ? , Universit

Thomas S. Ferguson; F. Thomas Bruss

2011-01-01T23:59:59.000Z

204

A Path to a 0.1 s Neutron Lifetime Measurement Using the Beam Method  

Science Journals Connector (OSTI)

Abstract The beam method obtains the beta decay lifetime of the free neutron from the specific activity of a slow neutron beam. The best previous result had an overall uncertainty of 3.4 s [Nico, et al. (2005)]. We present a plan for a phased experimental program that will improve the overall uncertainty using this method to 0.1 s or below and may help elucidate systematic effects that could explain the current disagreement between the most recent beam and bottle method neutron lifetime experiments.

F.E. Wietfeldt; G. Darius; M.S. Dewey; N. Fomin; G.L. Greene; J. Mulholland; W.M. Snow; A.T. Yue

2014-01-01T23:59:59.000Z

205

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

206

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

207

THE LIFETIME OF AEROSOLS IN AMBIENT AIR: CONSIDERATION OF THE EFFECTS OF SURFACTANTS AND CHEMICAL REACTIONS  

SciTech Connect (OSTI)

The relatively long lifetime of droplets in atmospheric haze and fog in comparison with similar droplets of pure water is attributed to the presence of a monolayer of surfactant film and to the accumulation Of soluble salts from chemical reactions. The lifetime of these droplets is a significant factor in the evaluation of the role of heterogeneous aqueous chemical reactions occurring in the troposphere. Several mechanisms of SO{sub 2} oxidation in the presence of liquid water are investigated. It is shown that soot-catalyzed oxidation of sulfur dioxide could be responsible for the high level of sulfate concentration observed in the coastal industrial areas.

Toossi, R.; Novakov, T.

1984-04-01T23:59:59.000Z

208

Calculation of the lifetime of a Davydov soliton at finite temperature  

Science Journals Connector (OSTI)

The standard Davydov Hamiltonian can be partially diagonalized using a method due to Eremko, Gaididei, and Vakhnenko. The complete Hamiltonian in this partially diagonalized form, however, includes a term omitted by these authors. Using this term in a first-order perturbation theory calculation results in an estimate of the lifetime of a Davydov soliton at finite temperatures. The lifetime at 300 K is on the order of 10-12 s for parameters appropriate for the ?-helical protein molecule. This is too short to be useful in biological processes.

James P. Cottingham and John W. Schweitzer

1989-04-10T23:59:59.000Z

209

Observation of quartet-state fine structures and lifetimes in lithiumlike Ne VIII  

Science Journals Connector (OSTI)

Wavelength and lifetime measurements for the fine-structure components of the 1s 2s 2p Po4-1s 2p2 P4 multiplet in lithiumlike Ne VIII have been made using foil excitation of a fast-ion beam. The results are compared with recent theoretical calculations and with previous measurements for other ions of the same isoelectronic squence. An apparent discrepancy between theory and experiment for the 1s 2p2 P324 lifetime is removed.

A. E. Livingston; J. E. Hardis; L. J. Curtis; R. L. Brooks; H. G. Berry

1984-10-01T23:59:59.000Z

210

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

E-Print Network [OSTI]

Lifetime of carbon capture and storage as a climate-change mitigation technology Michael L) In carbon capture and storage (CCS), CO2 is captured at power plants and then injected underground of fossil fuels in a carbon-constrained world, the deployment of CCS has been hindered by uncertainty in geo

211

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

SciTech Connect (OSTI)

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

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

2013-05-06T23:59:59.000Z

212

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

213

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

214

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

215

Lifetime-Aware Hierarchical Wireless Sensor Network Architecture with Mobile Overlays  

E-Print Network [OSTI]

,morteza,pedram}@usc.edu ABSTRACT-- Recent technological advances have led to the emergence of small battery-powered sensors, delay, and local storage size. Fixed event aggregation relays and mobile relays are used to collect lifetime subject to constraints on local storage, delay, and maintenance cost. Network behavior is studied

Pedram, Massoud

216

Assessment of Lifetime Cumulative Sun Exposure Using a Self-Administered Questionnaire: Reliability of Two Approaches  

Science Journals Connector (OSTI)

...latitude influences outdoor temperatures, which to some extent, determines...Analysis Cumulative lifetime sun exposure during 9:00 a...averaged to give the rate of sun exposure (i.e., average...categories would have a similar distribution to the time-based response...

Chu-Ling Yu; Yan Li; D. Michal Freedman; Thomas R. Fears; Richard Kwok; Gabriel Chodick; Bruce Alexander; Michael G. Kimlin; Anne Kricker; Bruce K. Armstrong; and Martha S. Linet

2009-02-01T23:59:59.000Z

217

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.

218

Precision measurement of the ratio of the $?^0_b$ to $\\overline{B}^0$ lifetimes  

E-Print Network [OSTI]

The LHCb measurement of the lifetime ratio of the $\\Lambda^0_b$ to the $\\overline{B}^0$ meson is updated using data corresponding to an integrated luminosity of 3.0 fb$^{-1}$ collected using 7 and 8 TeV centre-of-mass energy $pp$ collisions at the LHC. The decay modes used are $\\overline{B}^0\\to J/\\psi p K^-$ and $\\overline{B}^0\\to J/\\psi \\pi^+ K^-$, where the $\\pi^+K^-$ mass is consistent with that of the $\\overline{K}^{*0}(892)$ meson. The lifetime ratio is determined with unprecedented precision to be $0.974\\pm0.006\\pm0.004$, where the first uncertainty is statistical and the second systematic. This result is in agreement with original theoretical predictions based on the heavy quark expansion. Using the current world average of the $\\overline{B}^0$ lifetime, the $\\Lambda^0_b$ lifetime is found to be $1.479 \\pm 0.009 \\pm 0.010$ ps.

LHCb collaboration; R. Aaij; B. Adeva; M. Adinolfi; 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; 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; 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; M. Borsato; 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; A. Bursche; G. Busetto; J. Buytaert; S. Cadeddu; R. Calabrese; O. Callot; M. Calvi; M. Calvo Gomez; A. Camboni; P. Campana; D. Campora Perez; F. Caponio; 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. -F. Cheung; 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; 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; 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. Dlage; D. Derkach; O. Deschamps; F. Dettori; A. Di Canto; H. Dijkstra; S. Donleavy; F. Dordei; M. Dorigo; P. Dorosz; A. Dosil Surez; D. Dossett; A. Dovbnya; 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. Esen; A. Falabella; C. Frber; C. Farinelli; S. Farry; D. Ferguson; V. Fernandez Albor; F. Ferreira Rodrigues; M. Ferro-Luzzi; S. Filippov; M. Fiore; M. Fiorini; C. Fitzpatrick; M. Fontana; F. Fontanelli; R. Forty; O. Francisco; M. Frank; C. Frei; M. Frosini; J. Fu; E. Furfaro; A. Gallas Torreira; D. Galli; S. Gambetta; M. Gandelman; P. Gandini; Y. Gao; J. Garofoli; J. Garra Tico; L. Garrido; C. Gaspar; R. Gauld; L. Gavardi; E. Gersabeck; M. Gersabeck; T. Gershon; Ph. Ghez; A. Gianelle; S. Giani'; V. Gibson; L. Giubega; V. V. Gligorov; C. Gbel; D. Golubkov; A. Golutvin; A. Gomes; H. Gordon; M. Grabalosa Gndara; R. Graciani Diaz; L. A. Granado Cardoso; E. Graugs; G. Graziani; A. Grecu; E. Greening; S. Gregson; P. Griffith; L. Grillo; O. Grnberg; B. Gui; E. Gushchin; Yu. Guz; T. Gys; C. Hadjivasiliou; G. Haefeli; C. Haen; T. W. Hafkenscheid; 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; L. Henry; J. A. Hernando Morata; E. van Herwijnen; M. He; 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; 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; M. Kelsey; I. R. Kenyon; T. Ketel; B. Khanji; C. Khurewathanakul; S. Klaver; 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; 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. Lefvre; A. Leflat; J. Lefranois; 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; E. Luppi; O. Lupton; F. Machefert; I. V. Machikhiliyan; F. Maciuc; O. Maev; S. Malde; G. Manca; G. Mancinelli; M. Manzali; J. Maratas; U. Marconi; C. Marin Benito; P. Marino; R. Mrki; J. Marks; G. Martellotti; A. Martens; A. Martn Snchez; M. Martinelli; D. Martinez Santos; F. Martinez Vidal; D. Martins Tostes; A. Massafferri; R. Matev; Z. Mathe; C. Matteuzzi; A. Mazurov

2014-02-25T23:59:59.000Z

219

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

220

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

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


221

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

222

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

223

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

224

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

225

MODELING OF DAMAGE AND LIFETIME ANALYSIS OF PLASMA FACING COMPONENTS DURING PLASMA INSTABILITIES IN TOKAMAKS  

E-Print Network [OSTI]

MODELING OF DAMAGE AND LIFETIME ANALYSIS OF PLASMA FACING COMPONENTS DURING PLASMA INSTABILITIES reliability and characterize the performance of this key component. A novel particle-in-cell (PIC) technique) as consequence of plasma instabilities in tokamak reactors still represents the biggest obstacle

Harilal, S. S.

226

Information About The American Opportunity and Lifetime Learning Education Tax Credits  

E-Print Network [OSTI]

Information About The American Opportunity and Lifetime Learning Education Tax Credits and the Above-the-Line Tax Deduction Tax Year 2013 TAX CREDITS AND DEDUCTIONS FOR COLLEGE EDUCATION everal TAX CREDIT (a modification of the Hope credit), originally slated to expire at the end of 2012, has

227

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.

228

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

E-Print Network [OSTI]

Novel Battery Thermal Management System for Greater Lifetime Ratifying Current Quality and Safety thermal management system (BTMS) is an important and integral part of battery management system (BMS battery pack ecosystem. Fig. 1 corresponds a generic battery thermal management system operating

Andreasen, Søren Juhl

229

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

230

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

231

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

232

Precision lifetime measurements of exotic nuclei based on Doppler-shift techniques  

SciTech Connect (OSTI)

A recent progress in precision lifetime measurements of exotic nuclei at the National Superconducting Cyclotron Laboratory (NSCL), Michigan State University is presented. The Recoil Distance Doppler-shift (RDDS) technique has been applied to nuclear reactions involving intermediate-energy rare isotope (RI) beams, to determine absolute transition strengths between nuclear states model independently from level lifetimes of interest. As such an example, recent lifetime measurements of the first 2{sup +} states in the neutron-rich {sup 62,64,66}Fe isotopes at and around N=40 are introduced. The experiment was performed at the Coupled Cyclotron Facility at NSCL using a unique combination of several experimental instruments; the Segmented Germanium Array (SeGA), the plunger device, and the S800 spectrograph. The reduced E2 transition probabilities B(E2) are determined directly from the measured lifetimes. The observed trend of B(E2) clearly demonstrates that an enhanced collectivity persists in {sup 66}Fe despite the harmonic-oscillator magic number N=40. The present results are also discussed in comparison with the large-scale shell model calculations, pointing to a possible extension of the deformation region beyond N=40.

Iwasaki, Hironori [National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48824 (United States) and Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan (United States)

2013-04-19T23:59:59.000Z

233

Accurate Single Molecule FRET Efficiency Determination for Surface Immobilized DNA Using Maximum Likelihood Calculated Lifetimes  

E-Print Network [OSTI]

Accurate Single Molecule FRET Efficiency Determination for Surface Immobilized DNA Using MaximumVed: October 4, 2006; In Final Form: January 12, 2007 Single molecule fluorescent lifetime trajectories directly measured using time-tagged single-photon counting and scanning confocal microscopy. A modified

234

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

235

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

Science Journals Connector (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 2105???C/cm2 and 200C, 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

2007-02-07T23:59:59.000Z

236

Scaling of strength and lifetime probability distributions of quasibrittle structures based  

E-Print Network [OSTI]

law for subcritical creep crack growth, hitherto considered empirical. The theory is further extended of the cdf of structural strength and lifetime is outlined. cohesive fracture | crack growth rate | extreme distribution exists only for perfectly brittle structures failing at macro- crack initiation from a negligibly

Bazant, Martin Z.

237

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"

238

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

239

Radiation damage and lifetime estimation of the proton beam window at the Japan Spallation Neutron Source  

Science Journals Connector (OSTI)

Abstract The proton beam window (PBW) is a component that separates the high-vacuum area of the accelerator from the target area in the Japan Proton Accelerator Research Complexs Japan Spallation Neutron Source (JSNS). It is important to estimate the damage accumulated from proton beam irradiation to establish a safe lifetime for the window. The PBW is made of an aluminum alloy, which was chosen because of its successful use in the target safety hull of the Swiss Spallation Neutron Source (SINQ). Post-irradiation examination (PIE) performed on SINQ Target 3 after irradiation with a 0.6GeV proton beam measured the gas production in its aluminum safety hull. To estimate a safe lifetime for the JSNS PBW, we calculated the displacement per atom (DPA) and gas production rate using the Particle and Heavy Ion Transport code System (PHITS) for 0.6- and 3-GeV protons. For the hydrogen gas production rate, PHITS shows good agreement with the SINQ PIE results; however, for the helium production rate, it predicts a 45% lower value than the experimental result of 1125 appm. The calculated result for helium production was normalized to fit the experimental results of SINQ. We conservatively estimate the lifetime of the JSNS PBW using the condition that the hydrogen production rate does not exceed the value measured at SINQ. The lifetime of the PBW corresponds to a proton beam fluence of 1.8נ1021cm?2, which is equivalent to an integrated beam power of 8000MWh with the designed current density of 10?Acm?2. The peak density will be reduced to 8.4?Acm?2 to suppress cavitation pitting damage in the mercury target vessel. Consequently, the lifetime of the PBW will be 9500MWh.

Shin-ichiro Meigo; Motoki Ooi; Masahide Harada; Hidetaka Kinoshita; Atushi Akutsu

2014-01-01T23:59:59.000Z

240

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

Note: This page contains sample records for the topic "median expected lifetime" 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

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

242

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

243

Control of carrier lifetime in PbTe nipi-superlattices by external photoinjection  

Science Journals Connector (OSTI)

Photoexcitation of PbTe doping superlattices at different intensity levels can have a large influence on nonequilibrium carrier lifetime which in turn is determined both by PbTe bulk properties and details of the superlattice periodic potential. Such tunability in the recombination rate is examined theoretically in a model which considers details of carrier tunneling and thermal excitation in the superlattice as well as the role of Auger recombination as a decay channel at high densities. Good agreement is obtained with experimental studies of transient photoconductivity in which picosecond pulses from a Nd:YAG laser have been used to vary the effective lifetime from less than 2 nsec up to 10 usec. We also show how the presence of 300 K background radiation has an important influence on practical recombination rates.

J. Oswald; G. Bauer; W.C. Goltsos; A.V. Nurmikko

1988-01-01T23:59:59.000Z

244

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

245

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

246

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

247

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

248

Lifetimes of the First Excited States of F17 and O17  

Science Journals Connector (OSTI)

Using the gamma-gamma coincidence method and an electronic time-to-amplitude converter, the lifetimes of the first excited states in the mirror pair O17(0.87 Mev) and F17(0.50 Mev) have been measured. The reactions initiating the gamma cascades were O16(d,p)O17* and direct proton capture in O16. The time resolution of the coincidence circuit was good enough to allow the lifetime measurements to be made by direct observation of O17* is (2.550.13)10-10 sec; the measured mean life of F17* is (4.450.22)10-10 sec. Both of these results are in reasonable agreement with earlier, less accurate values.

J. V. Kane; R. E. Pixley; R. B. Schwartz; A. Schwarzschild

1960-10-01T23:59:59.000Z

249

Investigation of anomalously high transition strength for the 21+ state in 174Os through lifetime measurement  

Science Journals Connector (OSTI)

The lifetime of the 21+ state in 174Os was measured in a fast timing experiment using LaBr3(Ce) crystals for ?-ray detection. The excellent energy resolution in conjunction with the superb time properties of the new material allows for the reliable handling of the background, thus providing very precise lifetime values. The resulting B(E2,21+?01+) transition strength is discussed in relation to the systematics of the previously reported B(E2,21+?01+) values in the Os isotopes and compared to predictions of several models. The maximum of the transition probabilities of the 21+ states at N=98 for W and Os nuclei may be interpreted as resulting from the effects of the deformed subshell at N=98 as well as the intruder proton h9/2 orbital.

C. B. Li; X. G. Wu; X. F. Li; C. Y. He; Y. Zheng; G. S. Li; S. H. Yao; S. P. Hu; H. W. Li; J. L. Wang; J. J. Liu; C. Xu; J. J. Sun; W. W. Qu

2012-11-19T23:59:59.000Z

250

Dynamic Windowing Algorithm for the Fast and Accurate Determination of Luminescence Lifetimes  

Science Journals Connector (OSTI)

Dynamic Windowing Algorithm for the Fast and Accurate Determination of Luminescence Lifetimes ... The window size is initially set to a small value so that a maximum window change is only used for increases in window width. ... From the simulated response profile (Figure 6), all of the methods appear to be very accurate at low oxygen concentrations: that is when the windows are able to cover most of the decay. ...

Bradley B. Collier; Michael J. McShane

2012-04-17T23:59:59.000Z

251

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

252

RadRAT: a radiation risk assessment tool for lifetime cancer risk projection  

Science Journals Connector (OSTI)

Risk projection methods allow for timely assessment of the potential magnitude of radiation-related cancer risks following low-dose radiation exposures. The estimation of such risks directly through observational studies would generally require infeasibly large studies and long-term follow-up to achieve reasonable statistical power. We developed an online radiation risk assessment tool (RadRAT) which can be used to estimate the lifetime risk of radiation-related cancer with uncertainty intervals following a user-specified exposure history (https://irep.nci.nih.gov/radrat). The uncertainty intervals constitute a key component of the program because of the various assumptions that are involved in such calculations. The risk models used in RadRAT are broadly based on those developed by the BEIR VII committee for estimating lifetime risk following low-dose radiation exposure of the US population for eleven site-specific cancers. We developed new risk models for seven additional cancer sites, oral, oesophagus, gallbladder, pancreas, rectum, kidney and brain/central nervous system (CNS) cancers, using data from Japanese atomic bomb survivors. The lifetime risk estimates are slightly higher for RadRAT than for BEIR VII across all exposure ages mostly because the weighting of the excess relative risk and excess absolute risk models was conducted on an arithmetic rather than a logarithmic scale. The calculator can be used to estimate lifetime cancer risk from both uniform and non-uniform doses that are acute or chronic. It is most appropriate for low-LET radiation doses

Amy Berrington de Gonzalez; A Iulian Apostoaei; Lene H S Veiga; Preetha Rajaraman; Brian A Thomas; F Owen Hoffman; Ethel Gilbert; Charles Land

2012-01-01T23:59:59.000Z

253

Lifetimes of the Low-Energy M1 Transitions in La137 and Kr83  

Science Journals Connector (OSTI)

Using conventional time to pulse-height techniques, the lifetimes of the low-lying levels in La137 and Kr83 have been measured, despite the low ?-ray energies (10 and 9.3 keV) and the large internal conversion coefficients (130 and 11). The results of 894 and 1474 nsec, respectively, correspond to retardation factors of 370 and 45 over the single-particle model predictions for those M1 transitions.

S. L. Ruby; Y. Hazoni; M. Pasternak

1963-01-15T23:59:59.000Z

254

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

255

Direct experimental lower bound on the radiative lifetime of the muon neutrino  

Science Journals Connector (OSTI)

A sensitive search for ?? and ?? decay into photons was performed in a high-intensity beam of neutrinos from ?+ and ?+ decay at rest. An upper limit of 68 possible ?-ray events was established, leading to a lower bound on the radiative lifetime of the muon (anti)neutrino of ?m???15.4 sec/eV (90% C.L.). This result represents more than a factor of 100 improvement over previous direct laboratory searches.

D. A. Krakauer; R. L. Talaga; R. C. Allen; H. H. Chen; R. Hausammann; W. A. Johnson; W. P. Lee; X -Q. Lu; H. J. Mahler; K. C. Wang; H. Yao; T. J. Bowles; R. L. Burman; R. D. Carlini; D. R. F. Cochran; P. J. Doe; J. S. Frank; M. E. Potter; E. Piasetzky; V. D. Sandberg

1991-07-01T23:59:59.000Z

256

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

257

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

258

A Comment on \\The Cross-Section of Volatility and Expected Returns": The Statistical Signi  

E-Print Network [OSTI]

on "The Cross-Section of Volatility and Expected Returns":on The Cross-Section of Volatility and Expected Returns:the pricing of aggregate volatility risk and idiosyncratic

Anderson, Robert M.; Bianchi, Stephen W.; Goldberg, Lisa R.

2012-01-01T23:59:59.000Z

259

What to Expect When Readying to Move Spent Nuclear Fuel from...  

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

What to Expect When Readying to Move Spent Nuclear Fuel from Commercial Nuclear Power Plants What to Expect When Readying to Move Spent Nuclear Fuel from Commercial Nuclear Power...

260

U.S. Federal Offshore Dry Natural Gas Expected Future Production...  

U.S. Energy Information Administration (EIA) Indexed Site

Dry Natural Gas Expected Future Production (Billion Cubic Feet) U.S. Federal Offshore Dry Natural Gas Expected Future Production (Billion Cubic Feet) Decade Year-0 Year-1 Year-2...

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


261

Improving digital ink interpretation through expected type prediction and dynamic dispatch  

E-Print Network [OSTI]

Interpretation accuracy of current applications dependent on interpretation of handwritten "digital ink" can be improved by providing contextual information about an ink sample's expected type. This expected type, however, ...

Tay, Kah Seng

2008-01-01T23:59:59.000Z

262

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

263

Two-Year and Lifetime Cost-Effectiveness of Intensity Modulated Radiation Therapy Versus 3-Dimensional Conformal Radiation Therapy for Head-and-Neck Cancer  

SciTech Connect (OSTI)

Purpose: To assess the cost-effectiveness of intensity modulated radiation therapy (IMRT) versus 3-dimensional conformal radiation therapy (3D-CRT) in the treatment of head-and neck-cancer (HNC). Methods and Materials: We used a Markov model to simulate radiation therapy-induced xerostomia and dysphagia in a hypothetical cohort of 65-year-old HNC patients. Model input parameters were derived from PARSPORT (CRUK/03/005) patient-level trial data and quality-of-life and Medicare cost data from published literature. We calculated average incremental cost-effectiveness ratios (ICERs) from the US health care perspective as cost per quality-adjusted life-year (QALY) gained and compared our ICERs with current cost-effectiveness standards whereby treatment comparators less than $50,000 per QALY gained are considered cost-effective. Results: In the first 2 years after initial treatment, IMRT is not cost-effective compared with 3D-CRT, given an average ICER of $101,100 per QALY gained. However, over 15 years (remaining lifetime on the basis of average life expectancy of a 65-year-old), IMRT is more cost-effective at $34,523 per QALY gained. Conclusion: Although HNC patients receiving IMRT will likely experience reduced xerostomia and dysphagia symptoms, the small quality-of-life benefit associated with IMRT is not cost-effective in the short term but may be cost-effective over a patient's lifetime, assuming benefits persist over time and patients are healthy and likely to live for a sustained period. Additional data quantifying the long-term benefits of IMRT, however, are needed.

Kohler, Racquel E. [Department of Health Policy and Management, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina (United States); Sheets, Nathan C. [Department of Radiation Oncology, University of North Carolina Hospitals, Chapel Hill, North Carolina (United States); Wheeler, Stephanie B. [Department of Health Policy and Management, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina (United States); Nutting, Chris [Royal Marsden Hospital, London, United Kindom (United Kingdom); Hall, Emma [Clinical Trials and Statistics Unit, Division of Clinical Studies, Institute of Cancer Research, London (United Kingdom); Chera, Bhishamjit S., E-mail: bchera@med.unc.edu [Department of Radiation Oncology, University of North Carolina Hospitals, Chapel Hill, North Carolina (United States)

2013-11-15T23:59:59.000Z

264

Economically rational expectations theory: evidence from the WTI oil price survey data  

E-Print Network [OSTI]

Economically rational expectations theory: evidence from the WTI oil price survey data Georges PRAT are not conclusive regarding this hypothesis. Moosa and Al- Loughani (1994) find that futures prices on the WTI of whether or not expectations are rational unsolved. Using private WTI oil price expectations revealed

Paris-Sud XI, Université de

265

ELICITING UTILITY FOR (NON)EXPECTED UTILITY PREFERENCES USING INVARIANCE TRANSFORMATIONS  

E-Print Network [OSTI]

ELICITING UTILITY FOR (NON)EXPECTED UTILITY PREFERENCES USING INVARIANCE TRANSFORMATIONS André DE,version1-15Sep2010 #12;Eliciting Utility for (Non)Expected Utility Preferences Using Invariance of (non)-expected utility theory. When individual preference satisfies a given invariance property, his

Paris-Sud XI, Université de

266

Determinants of households inflation expectations in Japan and the United States  

Science Journals Connector (OSTI)

Using a VAR model that includes survey data on households inflation expectations for Japan and the US, we investigate their determinants and influences on the economy and compare their properties in two countries. Short-term non-recursive restrictions are imposed taking account of simultaneous co-dependence between realized and expected inflation. We find that responding to changes in exogenous prices and to monetary policy shocks, inflation expectations adjust more quickly than does realized inflation. Compared with Japan, the effects of exogenous prices on inflation and inflation expectations in the US are not only large but also long lasting and shocks to expectations have self-fulfilling effects on inflation.

Kozo Ueda

2010-01-01T23:59:59.000Z

267

Excited-Level Lifetimes and Hyperfine-Structure Measurements on Ions using Collinear Laser Ion-Beam Spectroscopy  

E-Print Network [OSTI]

The mean lifetimes tau of the Ca II 4p P-2(1/2) and 4p P-2(3/2) levels, and the Cl-35 II 4p' F-1(3) level, have been measured by a variant of the collinear laser-ion-beam lifetime technique applied previously to the Ar II 4p' F-2(7/2)o level [Jian...

Jin, J.; Church, David A.

1994-01-01T23:59:59.000Z

268

Lifetime study of particle-hole excitations in the semimagic nucleus 93Tc  

Science Journals Connector (OSTI)

The recoil-distance Doppler-shift technique was employed for determining lifetimes of high-spin states in the semimagic nucleus 93Tc. The nuclei were populated using the reaction 64Zn(35Cl, ?2p) at a beam energy of 135 MeV, and the ? radiation from their decay was detected in the GASP spectrometer. A total of 26 reduced transition probabilities and limits for 19 further transitions were extracted and compared to large-scale shell model calculations, considering different configuration spaces and residual interactions. The information deduced about transition strengths turned out to be essential for the correct assignment of the calculated to the experimental excited states.

M. Hausmann; A. Jungclaus; E. Galindo; K. P. Lieb; O. Yordanov; I. P. Johnstone; R. Schwengner; A. Dewald; A. Fitzler; O. Mller; G. de Angelis; A. Gadea; T. Martinez; D. R. Napoli; C. Ur

2003-08-18T23:59:59.000Z

269

Lifetime of the Embedded Phase of Low-Mass Star Formation and the Envelope Depletion Rates  

Science Journals Connector (OSTI)

Motivated by a considerable scatter in the observationally inferred lifetimes of the embedded phase of star formation, we study the duration of the Class 0 and Class I phases in upper-mass brown dwarfs and low-mass stars using numerical hydrodynamic simulations of the gravitational collapse of a large sample of cloud cores. We resolve the formation of a star/disk/envelope system and extend our numerical simulations to the late accretion phase when the envelope is nearly totally depleted of matter. We adopt the classification scheme of Andr et al. and calculate the lifetimes of the Class 0 and Class I phases (?C0 and ?CI, respectively) based on the mass remaining in the envelope. When cloud cores with various rotation rates, masses, and sizes (but identical otherwise) are considered, our modeling reveals a sub-linear correlation between the Class 0 lifetimes and stellar masses in the Class 0 phase with the least-squares fit exponent m = 0.8 0.05. The corresponding correlation between the Class I lifetimes and stellar masses in Class I is super-linear with m = 1.2 0.05. If a wider sample of cloud cores is considered, which includes possible variations in the initial gas temperature, cloud core truncation radii, density enhancement amplitudes, initial gas density and angular velocity profiles, and magnetic fields, then the corresponding exponents may decrease by as much as 0.3. The duration of the Class I phase is found to be longer than that of the Class 0 phase in most models, with a mean ratio ?CI/?C0? 1.5-2. A notable exception are young stellar objects that form from cloud cores with large initial density enhancements, in which case ?C0 may be greater than ?CI. Moreover, the upper-mass (1.0 M ?) cloud cores with frozen-in magnetic fields and high cloud core rotation rates may have the ?CI/?C0 ratios as large as 3.0-4.0. We calculate the rate of mass accretion from the envelope onto the star/disk system and provide an approximation formula that can be used in semi-analytic models of cloud core collapse.

Eduard I. Vorobyov

2010-01-01T23:59:59.000Z

270

Gamma-ray lifetimes for parity doublets in K41, Ca41  

Science Journals Connector (OSTI)

Lifetimes have been measured by direct timing for the 1582 keV, 32- level of K41(?<38 ps) and the 2010 keV, 32+ level of Ca41(?=73018 ps). These levels are members of closely spaced parity doublets. The sensitivity of measurements to determine the parity mixing within these doublets is discussed.NUCLEAR REACTIONS K41(p,p?), Ex=1582 keV, measured ?; Ca40(d,p?), Ex=2010 keV, measured ?. Direct timing.

S. K. Saha; M. J. Maynard; B. C. Robertson; A. B. McDonald; E. D. Earle

1980-06-01T23:59:59.000Z

271

Expectation Management  

Science Journals Connector (OSTI)

...he should have prevented. He exuded dread. Using a validated screening tool, I was assessing his need for further mental and behavioral health evaluation and care. He did not wish to pursue the topic. "Doc, what are the chances this will all go away when I get back? That I'll be normal again, with no... As physicians transform observed frequencies from studies into predicted probabilities for a given patient, we generally fail to consider that the predictions we utter about a given therapeutic intervention are themselves part of the intervention.

Chretien J.-P.

2014-11-13T23:59:59.000Z

272

Essays on Three Price Judgments: Price Fairness, Price Magnitude, and Price Expectation.  

E-Print Network [OSTI]

??This dissertation addresses three important price judgments: price fairness, price magnitude, and price expectation. Developed over three chapters, the main objective of this research is (more)

Bhowmick, Sandeep

2010-01-01T23:59:59.000Z

273

Availability, usage and expected contribution of potential nursery habitats for the California halibut  

E-Print Network [OSTI]

locate/ecss Availability, usage and expected contribution ofas well as the distribution (usage) of juvenile ?sh withinof ju- venile ?sh (usage) within those habitats. In this

Fodrie, Fredrick Joel; Mendoza, Guillermo F.

2006-01-01T23:59:59.000Z

274

,"U.S. Federal Offshore Dry Natural Gas Expected Future Production...  

U.S. Energy Information Administration (EIA) Indexed Site

Of Series","Frequency","Latest Data for" ,"Data 1","U.S. Federal Offshore Dry Natural Gas Expected Future Production (Billion Cubic Feet)",1,"Annual",2013...

275

Standard Model expectations on sin2beta(phi_1) from b to s penguins  

E-Print Network [OSTI]

Recent results of the standard model expectations on sin2beta(phi_1) from penguin-dominated b to s decays are briefly reviewed.

Chun-Khiang Chua

2006-05-27T23:59:59.000Z

276

What to Expect when being Processed for a Department of Energy...  

Office of Environmental Management (EM)

WHAT TO EXPECT WHEN BEING PROCESSED FOR A DEPARTMENT OF ENERGY SECURITY CLEARANCE OR ACCESS AUTHORIZATION INTRODUCTION This overview will help individuals new to the process...

277

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

278

Resonant Lifetime of Core-Excited Organic Adsorbates from First Principles  

E-Print Network [OSTI]

We investigate by first-principles simulations the resonant electron-transfer lifetime from the excited state of an organic adsorbate to a semiconductor surface, namely isonicotinic acid on rutile TiO$_2$(110). The molecule-substrate interaction is described using density functional theory, while the effect of a truly semi-infinite substrate is taken into account by Green's function techniques. Excitonic effects due to the presence of core-excited atoms in the molecule are shown to be instrumental to understand the electron-transfer times measured using the so-called core-hole-clock technique. In particular, for the isonicotinic acid on TiO$_2$(110), we find that the charge injection from the LUMO is quenched since this state lies within the substrate band gap. We compute the resonant charge-transfer times from LUMO+1 and LUMO+2, and systematically investigate the dependence of the elastic lifetimes of these states on the alignment among adsorbate and substrate states.

Fratesi, Guido; Trioni, Maria Italo; Brivio, Gian Paolo; Sanchez-Portal, Daniel

2014-01-01T23:59:59.000Z

279

Graphite Materials Testing in the ATR for Lifetime Management of Magnox Reactors  

SciTech Connect (OSTI)

A major feature of the Magnox gas cooled reactor design is the graphite core, which acts as the moderator but also provides the physical structure for fuel, control rods, instrumentation and coolant gas channels. The lifetime of a graphite core is dependent upon two principal aging processes: irradiation damage and radiolytic oxidation. Irradiation damage from fast neutrons creates lattice defects leading to changes in physical and mechanical properties and the accumulation of stresses. Radiolytic oxidation is caused by the reaction of oxidizing species from the carbon dioxide coolant gas with the graphite, these species being produced by gamma radiation. Radiolytic oxidation reduces the density and hence the moderating capability of the graphite, but also reduces strength affecting the integrity of core components. In order to manage continued operation over the planned lifetimes of their power stations, BNFL needed to extend their database of the effects of these two phenomena on the ir graphite cores through an irradiation experiment. This paper will discuss the background, purpose, and the processes taken and planned (i.e. post irradiation examination) to ensure meaningful data on the graphite core material is obtained from the irradiation experiment.

Grover, S.B. (INEEL); Metcalfe, M.P. (BNFL, United Kingdom)

2002-03-14T23:59:59.000Z

280

Graphite Materials Testing in the ATR for Lifetime Management of Magnox Reactors  

SciTech Connect (OSTI)

A major feature of the Magnox gas cooled reactor design is the graphite core, which acts as the moderator but also provides the physical structure for fuel, control rods, instrumentation and coolant gas channels. The lifetime of a graphite core is dependent upon two principal aging processes: irradiation damage and radiolytic oxidation. Irradiation damage from fast neutrons creates lattice defects leading to changes in physical and mechanical properties and the accumulation of stresses. Radiolytic oxidation is caused by the reaction of oxidizing species from the carbon dioxide coolant gas with the graphite, these species being produced by gamma radiation. Radiolytic oxidation reduces the density and hence the moderating capability of the graphite, but also reduces strength affecting the integrity of core components. In order to manage continued operation over the planned lifetimes of their power stations, BNFL needed to extend their database of the effects of these two phenomena on their graphite cores through an irradiation experiment. This paper will discuss the background, purpose, and the processes taken and planned (i.e. post irradiation examination) to ensure meaningful data on the graphite core material is obtained from the irradiation experiment.

Grover, Stanley Blaine; Metcalfe, M. P.

2002-04-01T23:59:59.000Z

Note: This page contains sample records for the topic "median expected lifetime" 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

Vibration-based approach to lifetime prediction of electric motors for reuse  

Science Journals Connector (OSTI)

This paper is concerned with lifetime prediction of components in washing machines. Vibration signals were measured on electric motors during an accelerated lifetime test ranging from 26.7 to 38.5 simulated years. Loose bearings have initiated air-gap eccentricity and rotor-to-stator rubbing, which resulted in a motor breakdown. Significant frequency bands were identified using a spectral comparison based on the constant percentage bandwidth (CPB) spectrum. Increasing trends were extracted from several vibration indicators, such as envelope cepstrum (EC) and a weighted integral of CPB differences. The EC is computed as the real cepstrum of the envelope signal obtained by demodulating the band identified by the CPB comparison. Hence the EC is more sensitive as it employs a priori information provided by historical data. The fault was first detected 9.7 years in advance and confirmed 5.3 years before the breakdown. The indicators can be integrated with a recent methodology based on Weibull analysis and neural network modelling.

Jiri Vass; Robert B. Randall; Sami Kara; Hartmut Kaebernick

2010-01-01T23:59:59.000Z

282

Preliminary Chemical Aging and Lifetime Assessment for High Density S5370  

SciTech Connect (OSTI)

A preliminary lifetime assessment of S5370 stress cushions has been performed. Data from three sources were obtained and reviewed to perform this assessment. The sources were the following: (1) the Los Alamos National Laboratory and Honeywell FM&T Kansas City Plant's 2-year and 9-year accelerated aging studies; (2) a large selection of weapon surveillance return data; (3) laboratory experiments at Lawrence Livermore National Laboratory and Honeywell FM&T Kansas City Plant on artificially aged material. The general conclusions of this study are as follows: (1) There is an inherently large degree of structural and chemical heterogeneity in S5370 cushions that complicates lifetime assessments; (2) Current surveillance testing procedures are inadequate for providing insight into aging trends; (3) LANL PMAP data suggests a 60 year load retention of greater than 40%; however, this is for low density versions and extrapolation to high density must be performed with caution and a new set of testing is recommended; (4) Results of chemical aging assessments suggest that radiation damage is minimal at stockpile relevant doses, thermal degradation leads to compression set due to disentanglement of the network structure over time and a negligible amount of chain scissioning at relevant temperatures. The compression set is accelerated by exposure to radiation; (5) In the absence of further testing, a 60-year load retention of greater than 40% is estimated.

Maxwell, R S; Chinn, S

2003-11-24T23:59:59.000Z

283

Methods for Predicting More Confident Lifetimes of Seals in Air Environments  

SciTech Connect (OSTI)

We have been working for many years to develop improved methods for predicting the lifetimes of polymers exposed to air environments and have recently turned our attention to seal materials. This paper describes an extensive study on a butyl material using elevated temperature compression stress-relaxation (CSR) techniques in combination with conventional oven aging exposures. The results initially indicated important synergistic effects when mechanical strain is combined with oven aging, as well as complex, non-Arrhenius behavior of the CSR results. By combining modeling and experiments, we show that diffusion-limited oxidation (DLO) anomalies dominate traditional CSR experiments. A new CSR approach allows us to eliminate DLO effects and recover Arrhenius behavior. Furthermore, the resulting CSR activation energy (E{sub a}) from 125 C to 70 C is identical to the activation energies for the tensile elongation and for the oxygen consumption rate of unstrained material over similar temperature ranges. This strongly suggests that the same underlying oxidation reactions determine both the unstrained and strained degradation rates. We therefore utilize our ultrasensitive oxygen consumption rate approach down to 23 C to show that the CSR E{sub a} likely remains unchanged when extrapolated below 70 C, allowing very confident room temperature lifetime predictions for the butyl seal.

Celina, M.; Gillen, K.T.; Keenan, M.R.

1999-03-05T23:59:59.000Z

284

Integrated probabilistic design of marine propulsors to minimize lifetime fuel consumption  

Science Journals Connector (OSTI)

Marine propellers are typically designed to achieve optimal performance at a single or a few design points. It is well understood that the performance of marine propulsion systems decays at off-design conditions, where the system operates for the majority of its life, where fuel consumption rates are high and the system as a whole operates at lower efficiencies. This paper presents a novel integrated design methodology that considers the propeller, prime mover, and vessel as one integrated system, and considers the probabilistic operational profile of the vessel, to minimize lifetime fuel consumption. The proposed design methodology represents a new approach to evaluate the tradeoffs between different design objectives and constraints by considering the system performance characteristics along with probability of occurrence, and hence allows for global optimization of the propeller geometry. Results are shown for a pair of fixed-pitch propellers designed for a twin-screw naval combatant craft. System performance for a design obtained using the proposed methodology is compared with designs obtained using traditional point-based design approaches. This methodology can be easily extended to investigate the effects of variations in resistance, operational profile or additional performance criteria, such as safety during extreme operations, lifetime carbon emission, and life cycle costs.

Michael R. Motley; Mayer Nelson; Yin L. Young

2012-01-01T23:59:59.000Z

285

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

286

A measurement of the lambda_b lifetime at the D0 experiment  

SciTech Connect (OSTI)

This thesis describes a measurement of the lifetime of the {Lambda}{sub b}{sup 0} baryon, performed using data from proton-antiproton collisions at a centre of mass energy of 1.96 TeV. The decay {Lambda}{sub b}{sup 0} {yields} {Lambda}{sub c}{sup +}{mu}{sup -}{ovr P{nu}}{sub {mu}}X was reconstructed in approximately 1.3 fb{sup -1} of data recorded by the D0 detector in 2002-2006 during Run II of the Fermilab Tevatron collider. A signal of 4437 {+-} 329 {Lambda}{sub c}{sup +}{mu}{sup -} pairs was obtained, and the {Lambda}{sub b}{sup 0} lifetime was measured using a binned {chi}{sup 2} fit, which gives a value {tau}({Lambda}{sub b}{sup 0}) = 1.290{sub -0.110}{sup +0.119}(stat){sub -0.091}{sup +0.085}(syst) ps. This result is consistent with the world average and is one of the most precise measurements of this quantity.

Lewin, Marcus Philip; /Lancaster U.

2007-07-01T23:59:59.000Z

287

Lifetimes of the First and the Third Excited States of Ca41  

Science Journals Connector (OSTI)

The lifetimes of the 32- first excited state of Ca41 at Ex=1.95 MeV and the 32- third excited state at Ex=2.47 MeV have been measured by the attenuated-Doppler-shift method. The two states were populated through the K41(p,n)Ca41 reaction at bombarding energies only a little above threshold. The ? rays were detected with a lithium-drifted germanium detector. Measurements were made at 0 and 90 to the beam and with Ca41 ions recoiling into vacuum, carbon, KCl, and gold. Some attenuation of the Doppler shift results from the recoiling ion changing its direction on collision with a nucleus. At the low recoil velocities encountered, this effect is comparable with the attenuation due to the energy loss in electronic collisions and it was explicitly taken into account. The lifetime of the first excited state was found to be (4.7-1.0+2.5) 10-13 sec; that of the third excited state is ?710-13 sec. The speed of the E2 transition to ground from the first excited state is thus about three times the Moszkowski single-particle estimate. In contrast, the speed of the E2 ground-state transition from the third excited state (which decays mainly to the first excited state) is less than 610-3 of the single-particle estimate. These results are compared with theoretical predictions.

P. P. Singh; R. E. Segel; R. H. Siemssen; S. Baker; A. E. Blaugrund

1967-06-20T23:59:59.000Z

288

A Study of Expected Loss Rates in the Counting of Particles from Pulsed Sources  

Science Journals Connector (OSTI)

...research-article A Study of Expected Loss Rates in the Counting of Particles...Westcott The use in nuclear physics of accelerators giving a pulsed...some calculations on the loss rates to be expected. It is desirable...following the detailed analysis may pass directly from the end of section...

1948-01-01T23:59:59.000Z

289

Community-Based Ecotourism to Meet the New Tourist's Expectations: An Exploratory Study  

E-Print Network [OSTI]

Community-Based Ecotourism to Meet the New Tourist's Expectations: An Exploratory Study Amélie of responsible travel. Alternative forms of tourism have been conceived, such as ecotourism, and are viewed as a mean to meet the expectations of the new tourists. Ecotourism is a method to satisfy the concern of new

Paris-Sud XI, Université de

290

Lower estimates for the expected Betti numbers of random real hypersurfaces  

E-Print Network [OSTI]

Lower estimates for the expected Betti numbers of random real hypersurfaces Damien Gayet, Jean-Yves Welschinger March 12, 2013 Abstract We estimate from below the expected Betti numbers of real hypersurfaces bundle, random polynomial, Betti numbers 1 Introduction What is the topology of a real hypersurface taken

Paris-Sud XI, Université de

291

Power and Effective Study Size Based on Approximations to the Expected Likelihood Ratio  

E-Print Network [OSTI]

Power and Effective Study Size Based on Approximations to the Expected Likelihood Ratio Test statistical power and precision of heritability estimates can be difficult particularly in complex pedigrees. Previous work focused on the power to detect heritability by using the expectation of the likelihood ratio

Washington at Seattle, University of

292

Wind, Hydrogen and other Energy Technologies Similarities and Differences in Expectation Dynamics  

E-Print Network [OSTI]

Wind, Hydrogen and other Energy Technologies ­ Similarities and Differences in Expectation Dynamics But mostly a "storytelling" on expectations and wind energy Per Dannemand Andersen Head of Technology Use of Wind Energy #12;Wind Energy in Early Industrialisation Charles Bush 1890 #12;Wind Energy

293

Loan Guarantees for Three California PV Solar Plants Expected to Create  

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

Loan Guarantees for Three California PV Solar Plants Expected to Loan Guarantees for Three California PV Solar Plants Expected to Create 1,400 Jobs Loan Guarantees for Three California PV Solar Plants Expected to Create 1,400 Jobs June 30, 2011 - 2:29pm Addthis Ginny Simmons Ginny Simmons Former Managing Editor for Energy.gov, Office of Public Affairs What will these projects produce? These projects are expected to create 1,400 jobs in California and hundreds along the PV module supply chain across the country. Combined, the projects will produce 1330 Megawatts of installed solar power -- enough electricity to power about 275,000 homes. Building on the momentum of our SunShot Initiative, Secretary Chu announced nearly $4.5 billion in conditional loan guarantees to three California photovoltaic solar power plants today. These projects are expected to

294

Average summer electric power bills expected to be lowest in four years  

U.S. Energy Information Administration (EIA) Indexed Site

summer electric power bills expected to be lowest in summer electric power bills expected to be lowest in four years The average U.S. household is expected to pay $395 for electricity this summer. That's down 2.5% from last year and the lowest residential summer power bill in four years, according to the new forecast from the U.S. Energy Information Administration. Lower electricity use to meet cooling demand this summer because of forecasted milder temperatures compared with last summer is expected to more than offset higher electricity prices. The result is lower power bills for most U.S. households during the June, July, and August period. However electricity use and prices vary by region. EIA expects residential power bills will be lower in all areas of the country... except for the West South Central region, which includes

295

Loan Guarantees for Three California PV Solar Plants Expected to Create  

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

Loan Guarantees for Three California PV Solar Plants Expected to Loan Guarantees for Three California PV Solar Plants Expected to Create 1,400 Jobs Loan Guarantees for Three California PV Solar Plants Expected to Create 1,400 Jobs June 30, 2011 - 2:29pm Addthis Ginny Simmons Ginny Simmons Former Managing Editor for Energy.gov, Office of Public Affairs What will these projects produce? These projects are expected to create 1,400 jobs in California and hundreds along the PV module supply chain across the country. Combined, the projects will produce 1330 Megawatts of installed solar power -- enough electricity to power about 275,000 homes. Building on the momentum of our SunShot Initiative, Secretary Chu announced nearly $4.5 billion in conditional loan guarantees to three California photovoltaic solar power plants today. These projects are expected to

296

Electronic structure calculations of positron lifetimes in SiC: Self-consistent schemes and relaxation effect  

Science Journals Connector (OSTI)

Abstract We present electronic structure calculations of positron lifetimes in various neutral and negative monovacancies in 3C and 6H silicon carbide. Self-consistent positron lifetime calculation schemes were used and full defect relaxation due to the creation of the vacancy and the presence of the positron was considered. Formation energies of the various possible charges of the defects were also calculated to predict their detectability in PAS. Lifetimes between 170ps and 195ps for VC and between 222ps and 227ps for \\{VSi\\} were obtained. Based on these results we propose new interpretations of the experimental PAS signals observed in n-type 3C and 6H-SiC samples.

J. Wiktor; G. Jomard; M. Bertolus

2014-01-01T23:59:59.000Z

297

Lifetime measurements in Nb93 from photon and inelastic neutron scattering  

Science Journals Connector (OSTI)

The low-spin structure of Nb93 has been studied using the Nb93(?,?'), Nb93(n,n'?) and Zr94(p,2n??)Nb93 reactions. Lifetimes were determined from both Nb93(?,?') and Nb93(n,n'?) measurements. Branching ratios were measured, and multipolarities and spin assignments were determined from the Zr94(p,2n??)Nb93 angular correlation experiment. From M1 and E2 strengths, the J?=9/2+ and 7/2+ states at 1297.1 keV and 1483.6 keV, respectively, are proposed as members of the quintet of mixed-symmetry states associated with the ?1g9/2?(21,MS+,Zr92) configuration. The large B(M1) values determined in Nb93 cannot be explained within the weak coupling limit of the interacting boson fermion model.

J. N. Orce; C. Fransen; A. Linnemann; C. J. McKay; S. R. Lesher; N. Pietralla; V. Werner; G. Friessner; C. Kohstall; D. Mcher; H. H. Pitz; M. Scheck; C. Scholl; F. Stedile; N. Warr; S. Walter; P. von Brentano; U. Kneissl; M. T. McEllistrem; S. W. Yates

2007-01-04T23:59:59.000Z

298

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

299

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

300

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

Note: This page contains sample records for the topic "median expected lifetime" 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

Radiative lifetime of barbell excitons in semiparabolic double quantum wells under intense laser fields  

Science Journals Connector (OSTI)

Abstract The binding energy and optical properties of barbell excitons in GaAsGa1?xAlxAs semiparabolic double quantum wells under intense laser fields are investigated. Calculations are performed within the effective mass and envelope-function approximations, including the conduction band nonparabolicity. The dependence of the binding energy, oscillator strength and exciton absorption spectrum on the laser field in symmetric and asymmetric quantum wells is studied by using a finite difference method. It is shown that the exciton radiative lifetime can be tuned to a large extent by a proper choice of the structure design (double well size, middle barrier position and its thickness) as well as by varying the laser field intensity.

E.C. Niculescu

2013-01-01T23:59:59.000Z

302

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

303

Recombination dynamics and carrier lifetimes in highly mismatched ZnTeO alloys  

SciTech Connect (OSTI)

This study investigates the recombination dynamics in highly mismatched ZnTeO alloys using time-resolved photoluminescence (PL) spectroscopy. The large PL energy redshift with increasing O content and the disappearance of the ZnTe emission verify the O-induced conduction band anticrossing effect. The incorporation of O generates electron localization below the E{sub ?} conduction subband tail, which provide additional optical transitions and cause complex recombination mechanisms. Photoexcited free electrons in both the E{sub +} and the E{sub ?} conduction subbands favor rapid relaxation to low energy states. Additionally, temperature-independent long carrier lifetimes (>130.0?ns) that are induced by localized electrons increase with O concentration.

Lin, Yan-Cheng, E-mail: bryanlin@mail.nctu.edu.tw, E-mail: wuchingchou@mail.nctu.edu.tw; Tasi, Ming-Jui; Chou, Wu-Ching, E-mail: bryanlin@mail.nctu.edu.tw, E-mail: wuchingchou@mail.nctu.edu.tw; Chang, Wen-Hao; Chen, Wei-Kuo [Department of Electrophysics, National Chiao Tung University, Hsinchu 30010, Taiwan (China)] [Department of Electrophysics, National Chiao Tung University, Hsinchu 30010, Taiwan (China); Tanaka, Tooru [Department of Electrical and Electronic Engineering, Saga University, Saga 840-8502 (Japan) [Department of Electrical and Electronic Engineering, Saga University, Saga 840-8502 (Japan); PRESTO, Japan Science and Technology Agency (JST), Kawaguchi, Saitama 332-0012 (Japan); Guo, Qixin [Synchrotron Light Application Center, Saga University, 1 Honjo, Saga 840-8502 (Japan)] [Synchrotron Light Application Center, Saga University, 1 Honjo, Saga 840-8502 (Japan); Nishio, Mitsuhiro [Department of Electrical and Electronic Engineering, Saga University, Saga 840-8502 (Japan)] [Department of Electrical and Electronic Engineering, Saga University, Saga 840-8502 (Japan)

2013-12-23T23:59:59.000Z

304

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

305

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

306

$6000 FUNDED INTERNSHIPS GCFSI sponsored internees are expected to work in developing countries on projects  

E-Print Network [OSTI]

$6000 FUNDED INTERNSHIPS GCFSI sponsored internees are expected to work in developing countries of food systems Areas of work include: population growth, climate change and pressure on the land, rapid

307

U.S. net oil and petroleum product imports expected to fall to...  

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

net oil and petroleum product imports expected to fall to just 29 percent of demand in 2014 With rising domestic crude oil production, the United States will rely less on imports...

308

The indexing ambiguity in serial femtosecond crystallography (SFX) resolved using an expectation maximization algorithm  

Science Journals Connector (OSTI)

An expectation maximization algorithm is implemented to resolve the indexing ambiguity which arises when merging data from many crystals in protein crystallography, especially in cases where partial reflections are recorded in serial femtosecond crystallography (SFX) at XFELs.

Liu, H.

2014-09-23T23:59:59.000Z

309

Of pages and paddles: Children's expectations and mistaken interactions with physicaldigital tools  

Science Journals Connector (OSTI)

......about the system, such as exerting force on the eggs will crack them. Variations...Banging relies on the expectation of force applied to the egg making it crack...The Human-Computer Interaction Handbook. Fundamentals. In: Evolving Technologies......

Eva Hornecker; Andreas Dnser

2009-01-01T23:59:59.000Z

310

U.S. crude oil production expected to top 9 million barrels per...  

U.S. Energy Information Administration (EIA) Indexed Site

half of this year, drilling is expected to increase and U.S. production is forecast to rise to an average of 9.5 million barrels per day in 2016. That would be the...

311

U.S. gasoline price expected to drop further below $3 per gallon  

U.S. Energy Information Administration (EIA) Indexed Site

gasoline price expected to drop further below 3 per gallon The national average pump price of gasoline dropped below 3 per gallon last week for the first time in nearly four...

312

U.S. gasoline price expected to drop further below $3 per gallon  

Gasoline and Diesel Fuel Update (EIA)

U.S. households to pay an average 750 less for gasoline in 2015 In its new forecast, the U.S. Energy Information Administration expects the average U.S. household to spend 750...

313

Socialization, ambition, and career expections: race-sex variations among adolescents  

E-Print Network [OSTI]

Pago Father's Education. Nother's Education. 72 73 1'ether's Occupation. Nother's Occupation. 73 74 Intactness of Family Family Authority Structure. Parental Achievement Training gl, . Parental Achievement Traiuing /t2. . Parental... with Educational Expectations. . . . 123 32 Odds Ratios for Social Origin and I&ternal Employmcnt witn Occupational Expectations. . . 124 33 Odds Ratios fc - Social Origin. ", and Intactness of Famt1y with Educational Fxpccr t iona, . . . . . . . 127 34 Odds...

Noel, Dorothy Elizabeth

2012-06-07T23:59:59.000Z

314

Physiological response specificity to induced stress as predicted by perceptual and expectancy style  

E-Print Network [OSTI]

PHYSIOLOGICAL RESPONSE SPECIFICITY TO INDUCED STRESS AS PREDICTED BY PERCEPTUAL AND EXPECTANCY STYLE A Thesis by RODNEY DON WILLIAMS Submitted to the Graduate College of Texas AAM University in partial fulfillment of the requirement... for the degree of MASTER OF SCIENCE May 1978 Major Subject: Psychology PHYSIOLOGICAL RESPONSE SPECIFICITY TO INDUCED STRESS AS PREDICTED BY PERCEPTUAL AND EXPECTANCY STYLE A Thesis by RODNEY DON WILLIAMS Approved as to style and content by: (Chairman...

Williams, Rodney Don

2012-06-07T23:59:59.000Z

315

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

316

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

317

Drug Release from Self-Assembled Inorganic?Organic Hybrid Gels and Gated Porosity Detected by Positron Annihilation Lifetime Spectroscopy  

Science Journals Connector (OSTI)

Drug Release from Self-Assembled Inorganic?Organic Hybrid Gels and Gated Porosity Detected by Positron Annihilation Lifetime Spectroscopy ... Institute of Physical Chemistry, University of Mnster, Corrensstrasse 36, 48149 Mnster, Germany, CSIRO Manufacturing and Infrastructure Technology, Victoria, Australia, and School of Chemistry, Monash University, Clayton Victoria, Australia ...

Ansgar Bgershausen; Steven J. Pas; Anita J. Hill; Hubert Koller

2006-01-06T23:59:59.000Z

318

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.

319

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.

320

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

Note: This page contains sample records for the topic "median expected lifetime" 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

Magnetic dipole transition rates from measured lifetimes of levels of Be-like and B-like argon ions  

E-Print Network [OSTI]

The lifetimes of the 1s(2)2s2p P-3(2) level of Ar XV and 1s(2)2s(2)2p P-2(3/2) of Ar XIV have been measured using metastable Ar14+ and Ar13+ ions produced by an electron cyclotron resonance ion source, which were subsequently separately captured...

Moehs, D. P.; Church, David A.

1998-01-01T23:59:59.000Z

322

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

323

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

324

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

325

Vacancy profile in reverse osmosis membranes studied by positron annihilation lifetime measurements and molecular dynamics simulations  

Science Journals Connector (OSTI)

The positron annihilation technique using a slow positron beam can be used for the study of the vacancy profiles in typical reverse osmosis (RO) membranes. In this study, the vacancy profile in the polyamide membrane that exhibits a high permselectivity between ions and water was studied using the positron annihilation technique and molecular dynamics simulations. Ortho-positronium (o-Ps) lifetimes in the surface region of the membranes were evaluated by using a slow positron beam. The diffusion behavior of Na+ and water in the polyamides was simulated by molecular dynamics (MD) methods using the TSUBAME2 supercomputer at the Tokyo Institute of Technology and discussed with the vacancy profile probed by the o-Ps. The results suggested that the large hydration size of Na+ compared to the vacancy size in the polyamides contributes to the increased diffusivity selectivity of water/Na+ that is related to the NaCl desalination performance of the membrane. Both the hydration size of the ions and the vacancy size appeared to be significant parameters to discuss the diffusivity selectivity of water/ions in typical polyamide membranes.

A Shimazu; H Goto; T Shintani; M Hirose; R Suzuki; Y Kobayashi

2013-01-01T23:59:59.000Z

326

Radio frequency coupling apparatus and method for measuring minority carrier lifetimes in semiconductor materials  

DOE Patents [OSTI]

An apparatus for measuring the minority carrier lifetime of a semiconductor sample using radio-frequency coupling. The measuring apparatus includes an antenna that is positioned a coupling distance from a semiconductor sample which is exposed to light pulses from a laser during sampling operations. A signal generator is included to generate high frequency, such as 900 MHz or higher, sinusoidal waveform signals that are split into a reference signal and a sample signal. The sample signal is transmitted into a sample branch circuit where it passes through a tuning capacitor and a coaxial cable prior to reaching the antenna. The antenna is radio-frequency coupled with the adjacent sample and transmits the sample signal, or electromagnetic radiation corresponding to the sample signal, to the sample and receives reflected power or a sample-coupled-photoconductivity signal back. To lower impedance and speed system response, the impedance is controlled by limiting impedance in the coaxial cable and the antenna reactance. In one embodiment, the antenna is a waveguide/aperture hybrid antenna having a central transmission line and an adjacent ground flange. The sample-coupled-photoconductivity signal is then transmitted to a mixer which also receives the reference signal. To enhance the sensitivity of the measuring apparatus, the mixer is operated to phase match the reference signal and the sample-coupled-photoconductivity signal.

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

2002-01-01T23:59:59.000Z

327

WHAT CAN I EXPECT FROM THE HEADQUARTERS MEDIATION PROCESS? | Department of  

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

WHAT CAN I EXPECT FROM THE HEADQUARTERS MEDIATION PROCESS? WHAT CAN I EXPECT FROM THE HEADQUARTERS MEDIATION PROCESS? WHAT CAN I EXPECT FROM THE HEADQUARTERS MEDIATION PROCESS? October 18, 2012 - 9:42am Addthis Convening Process After mediation has been requested by one party to a conflict, the Headquarters (HQ) Mediation Program Manager will contact the other side to determine whether they agree to mediate. If they agree to mediate, she will meet separately with each party to discuss and prepare them for the mediation. This private pre-session meeting is required before the mediation is held. If a party is represented by counsel, the counsel may be present at the pre-session meeting, if the attorney and party so chose. Although attorneys are not required at a mediation, if you are representing management and, consequently, the Department, you should consult with the

328

New Set of Computational Tools and Models Expected to Help Enable Rapid  

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

Set of Computational Tools and Models Expected to Help Enable Set of Computational Tools and Models Expected to Help Enable Rapid Development and Deployment of Carbon Capture Technologies New Set of Computational Tools and Models Expected to Help Enable Rapid Development and Deployment of Carbon Capture Technologies January 28, 2013 - 12:00pm Addthis Washington, DC - An eagerly anticipated suite of 21 computational tools and models to help enable rapid development and deployment of new carbon capture technologies is now available from the Carbon Capture Simulation Initiative (CCSI). Visit the CCSI website The toolset developed by CCSI, a public-private partnership led by the Office of Fossil Energy's (FE) National Energy Technology Laboratory (NETL), will help meet an urgent need by industry to take carbon capture

329

Training Strategies to Mitigate Expectancy-Induced Response Bias in Combat Identification: A Research Agenda  

SciTech Connect (OSTI)

Historical assessments of combat fratricide reveal principal contributing factors in the effects of stress, continuous operations or sleep deprivation, poor situational awareness, emotions, and lack of training. This paper discusses what and how improvements in combat identification (CID) may be achieved through training. In addition to skill-based training, CID training must focus on countering the negative effects of expectancy in the face of heightened anxiety and stressors of continuous operations that lead to combat errors or fratricide. The paper examines possible approaches to training for overcoming erroneous expectancies and emotional factors that may distort or limit accurate "blue force" identification.

Greitzer, Frank L.; Andrews, Dee H.

2008-04-15T23:59:59.000Z

330

Training Strategies to Mitigate Expectancy-Induced Response Bias in Combat Identification: A Research Agenda  

SciTech Connect (OSTI)

Historical assessments of combat fratricide reveal principal contributing factors in the effects of stress, continuous operations or sleep deprivation, poor situational awareness, emotions, and lack of training. This paper discusses what and how improvements in combat identification (CID) may be achieved through training. In addition to skill-based training, CID training must focus on countering the negative effects of expectancy in the face of heightened anxiety and stressors of continuous operations that lead to combat errors or fratricide. The paper examines possible approaches to training for overcoming erroneous expectancies and emotional factors that may distort or limit accurate "blue force" identification.

Greitzer, Frank L.; Andrews, Dee H.

2009-12-01T23:59:59.000Z

331

Energy levels, radiative rates and lifetimes for transitions in Br-like ions with 38 $\\le$ Z $\\le$ 42  

E-Print Network [OSTI]

Energy levels and radiative rates for transitions in five Br-like ions (Sr IV, Y V, Zr VI, Nb VII and Mo VIII) are calculated with the general-purpose relativistic atomic structure package ({\\sc grasp}). Extensive configuration interaction has been included and results are presented among the lowest 31 levels of the 4s$^2$4p$^5$, 4s$^2$4p$^4$4d and 4s4p$^6$ configurations. Lifetimes for these levels have also been determined, although unfortunately no measurements are available with which to compare. However, recently theoretical results have been reported by Singh {\\em et al} [Phys. Scr. {\\bf 88} (2013) 035301] using the same {\\sc grasp} code. But their reported data for radiative rates and lifetimes cannot be reproduced and show discrepancies of up to five orders of magnitude with the present calculations.

Aggarwal, K M

2014-01-01T23:59:59.000Z

332

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. Bjrnstad; 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. Dlage; D. Derkach; O. Deschamps; F. Dettori; A. Di Canto; H. Dijkstra; S. Donleavy; F. Dordei; M. Dorigo; A. Dosil Surez; 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. Frber; 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. Gbel; D. Golubkov; A. Golutvin; A. Gomes; H. Gordon; C. Gotti; M. Grabalosa Gndara; R. Graciani Diaz; L. A. Granado Cardoso; E. Graugs; G. Graziani; A. Grecu; E. Greening; S. Gregson; P. Griffith; L. Grillo; O. Grnberg; 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. He; 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. Lefvre; A. Leflat; J. Lefranois; 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. Mrki; J. Marks

2014-07-16T23:59:59.000Z

333

BornOppenheimer breakdown and non-adiabatic lifetimes of rovibrational levels of D2 lying near the n=2 dissociation limit: Experiment and theory  

Science Journals Connector (OSTI)

The singlet gerade states of the hydrogen molecule are strongly affected by the breakdown of the BornOppenheimer approximation. This leads to strong non-adiabatic coupling resulting in large changes of the energies and lifetimes of the quantum levels compared to the values obtained in the BornOppenheimer or even the adiabatic levels of approximation. The non-adiabatic calculations of Quadrelli, Dressler, and Wolniewicz (1990) [7] (hereinafter QDW) for the three highest vibrational levels (?=44, 45, and 46) of the EF 1?g+ state of D2 predicted an enormous increase of the lifetimes upon excitation of just one quantum of rotational motion. However, although our experimental results for these levels just below the n=2 dissociation limit do show a strong increase in lifetime, the non-adiabatic lifetimes calculated by QDW are longer than experiment by as much as three orders of magnitude. In their work on isotopomers of hydrogen QDW and Yu and Dressler (1994) [5] published extensive summary tables of ab initio non-adiabatic coupling data. We present a technique which allows us to use their summary data to calculate approximate non-adiabatic ab initio lifetimes. The results reconcile our observed lifetimes with the non-adiabatic coupling from those previous ab initio calculations and also provide a detailed quantitative and qualitative understanding of the unusual rotational dependence of the lifetimes of these very highly excited levels. We also test the current technique by calculating the lifetimes of other levels involved in interactions with these EF levels and by calculating the lifetimes of the EF ?=33 level of H2, for which no corresponding level exists in the BornOppenheimer or adiabatic approximations.

Stephen C. Ross; Koichi Tsukiyama

2011-01-01T23:59:59.000Z

334

Actuarial risk assessment of expected fatalities attributable to carbon capture and storage in 2050  

E-Print Network [OSTI]

Actuarial risk assessment of expected fatalities attributable to carbon capture and storage in 2050-00487175,version2-10Feb2011 #12;1. Introduction Carbon capture and storage (CCS) involves capturing the CO2 is assessed integrating all steps of the CCS chain: additional coal production, coal transportation, carbon

335

Actuarial risk assessment of expected fatalities attributable to carbon capture and storage in 2050  

E-Print Network [OSTI]

1 Actuarial risk assessment of expected fatalities attributable to carbon capture and storage : 10.1016/j.ijggc.2011.07.004 #12;2 1. Introduction Carbon capture and storage (CCS) involves capturing of carbon and the cost of capture. From the engineering, psychological or climatic point of view, one

Paris-Sud XI, Université de

336

T hce1 8 7 2 What to Expect from ETDs  

E-Print Network [OSTI]

;gi ian T hce1 8 7 2 Vir Library Internet Workstations-- Public, On-Campus Access to ETDs · locate potential, copyright ­ Previously: · Does the Library have enough server space? · Network response timegi ian T hce1 8 7 2 Vir What to Expect from ETDs: PART 2 Library Issues and Responsibilities Gail

Beex, A. A. "Louis"

337

QUANTUM ENERGY EXPECTATION IN PERIODIC TIME-DEPENDENT HAMILTONIANS VIA GREEN  

E-Print Network [OSTI]

QUANTUM ENERGY EXPECTATION IN PERIODIC TIME-DEPENDENT HAMILTONIANS VIA GREEN FUNCTIONS C´ESAR R. DE. Introduction 1 2. Average Energy and Green Functions 4 3. Applications 10 3.1. Time-Independent Hamiltonians 10(t). For each positive and discrete observable A (which we call a probe energy), we derive a formula

338

Optimal estimation of an observable's expectation value for pure states for general measure of deviation  

E-Print Network [OSTI]

We investigate the optimal estimation of quantum expectation value of a physical observable, which minimizes a mean error with respect to general measure of deviation, when a finite number of copies of a pure state are prepared. If pure sates are uniformly distributed, the minimum value of mean error for any measure of deviation is achieved by projective measurement on each copy.

Minoru Horibe; Akihisa Hayashi; Takaaki Hashimoto

2006-10-03T23:59:59.000Z

339

What can the Upper Colorado basin expect this winter? Klaus Wolter  

E-Print Network [OSTI]

. Upper Colorado basin appears marginal at best! #12;What are typical impacts in Western U.S.? FebWhat can the Upper Colorado basin expect this winter? Klaus Wolter NOAA-Earth System Research Lab & University of Colorado at Boulder-CIRES · ENSO: current situation, typical impacts, and outlook · What about

340

WHAT SHOULD I EXPECT OF MY ADVISOR? Assistance in understanding the purposes,  

E-Print Network [OSTI]

WHAT SHOULD I EXPECT OF MY ADVISOR? Assistance in understanding the purposes, opportunities Colleges and Schools if I wish to gain more knowledge or change to one of them. WHAT SHOULD MY ADVISOR will explain to my Advisor any special circumstances that might impact on my academics, e.g. athletics

Arnold, Jonathan

Note: This page contains sample records for the topic "median expected lifetime" 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

96 International THE WORLD IN 2OO5 he new millennium opened with great expectations.  

E-Print Network [OSTI]

through trade policy, increased official development assistance (oda) and technology transfer to extend96 International THE WORLD IN 2OO5 T he new millennium opened with great expectations. When 147 the benefits of globalisation and new technologies to the world's poorest people, with quantified targets

342

Sea level rise implications on shoreline changes: expectations from a retrospective analysis  

E-Print Network [OSTI]

Sea level rise implications on shoreline changes: expectations from a retrospective analysis Gonéri de Recherche et de Formation en Calcul Scientifique (Cerfacs) Sea level rise is a major consequence level rise is up to 3 times the global mean rate (estimated as 3.5 mm per year since the early 1990s

Paris-Sud XI, Université de

343

Click-Inspired Chemistry in Macromolecular Science: Matching Recent Progress and User Expectations  

Science Journals Connector (OSTI)

Click-Inspired Chemistry in Macromolecular Science: Matching Recent Progress and User Expectations ... (2) Moreover, click chemistry united scientists from different backgrounds as it served as a strong basis and catalyst for interdisciplinary research. ... Click chemistry, a powerful tool for pharmaceutical sciences ...

Pieter Espeel; Filip E. Du Prez

2014-11-26T23:59:59.000Z

344

Sequential Expectations: The Role of Prediction-Based Learning in Language  

E-Print Network [OSTI]

October 2009; accepted 3 November 2009 Abstract Prediction-based processes appear to play an important prediction learning and natural lan- guage processing. This paper builds upon existing statistical learning differences for developing prob- abilistic sequential expectations. Across three interrelated experiments

345

U.S. crude oil production expected to exceed oil imports later this year  

U.S. Energy Information Administration (EIA) Indexed Site

crude oil production expected to exceed oil imports later crude oil production expected to exceed oil imports later this year U.S. crude oil production is expected to surpass U.S. crude oil imports by the fourth quarter of this year. That would mark the first time since February 1995 that domestic crude oil output exceeds imports, according to the latest monthly energy outlook from the U.S. Energy Information Administration. The United States will still need to import crude oil to help meet domestic demand. However, total crude oil imports this year are on track to fall to their lowest level since 1997. U.S. oil production is expected to continue to rise over the next two years as imports fall. As a result, the share of total U.S. petroleum consumption met by net imports is forecast to fall to 32 percent next year, the lowest level since 1985 and nearly half the peak level of 60 percent seen in

346

Tau threshold experiments: status and expectations A.G. Shamov for KEDR Collaboration a  

E-Print Network [OSTI]

1 Tau threshold experiments: status and expectations #3; A.G. Shamov for KEDR Collaboration. The most precise measurement of this kind was performed by the BES collaboration in 1991. We critically is completely dominated by the result of the BES collaboration [3] based on 65 #28; + #28; events. Since

347

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

348

Photon-induced positron annihilation lifetime spectroscopy using ultrashort laser-Compton-scattered gamma-ray pulses  

SciTech Connect (OSTI)

High-energy ultrashort gamma-ray pulses can be generated via laser Compton scattering with 90 Degree-Sign collisions at the UVSOR-II electron storage ring. As an applied study of ultrashort gamma-ray pulses, a new photon-induced positron annihilation lifetime spectroscopy approach has been developed. Ultrashort gamma-ray pulses with a maximum energy of 6.6 MeV and pulse width of 2.2 ps created positrons throughout bulk lead via pair production. Annihilation gamma rays were detected by a BaF{sub 2} scintillator mounted on a photomultiplier tube. A positron lifetime spectrum was obtained by measuring the time difference between the RF frequency of the electron storage ring and the detection time of the annihilation gamma rays. We calculated the response of the BaF{sub 2} scintillator and the time jitter caused by the variation in the total path length of the ultrashort gamma-ray pulses, annihilation gamma rays, and scintillation light using a Monte Carlo simulation code. The positron lifetime for bulk lead was successfully measured.

Taira, Y.; Toyokawa, H.; Kuroda, R. [Research Institute of Instrumentation Frontier, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba Central 2, 1-1-1 Umezono, Tsukuba, Ibaraki 305-8568 (Japan); Yamamoto, N. [Nagoya University Synchrotron Radiation Research Center, Furo-cho, Chikusa-ku, Nagoya, Aichi 464-8603 (Japan); Adachi, M.; Tanaka, S.; Katoh, M. [UVSOR, Institute for Molecular Science, National Institutes of Natural Sciences, Myodaiji-cho, Okazaki, Aichi 444-8585 (Japan)

2013-05-15T23:59:59.000Z

349

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

350

Lifetime measurement of the 6.79 MeV state in {sup 15}O with the AGATA demonstrator  

SciTech Connect (OSTI)

The preliminary results of a new direct measurement of the lifetime of the first excited 3/2{sup +} state in {sup 15}O are discussed. An accurate evaluation of this lifetime is of paramount importance for the determination of the cross section of the {sup 14}N(p,{gamma}){sup 15}O reaction, the slowest one in the CNO cycle, at the energies of the solar Gamow peak. The {sup 2}H({sup 14}N,{sup 15}O)n reaction in inverse kinematics at 32MeV beam energy (XTU Tandem, LNL) was used to populate the level of interest, which decays via a 6.79 MeV E1 gamma-ray transition to the ground state. Gamma rays were detected with 4 triple clusters of HPGe detectors of the AGATA Demonstrator array. The energy resolution and position sensitivity of this state-of-the-art gamma-ray spectrometer have been exploited to investigate the Doppler Shift Attenuation effect on the lineshape of the gamma-ray peak in the energy spectrum. The deconvolution of the lifetime effects from those due to the kinematics of the emitting nuclei has been performed using detailed Monte Carlo simulations of the gamma emission and detection. CDCC-CRC calculations for the nucleon transfer process have been used for this purpose and preliminary results are shown.

Michelagnoli, C.; Depalo, R.; Ur, C. A.; Menegazzo, R.; Broggini, C.; Bazzacco, D.; Caciolli, A.; Farnea, E.; Lunardi, S.; Bemmerer, D.; Keeley, N.; Erhard, M.; Fueloep, Zs.; Gottardo, A.; Marta, M.; Mengoni, D.; Mijatovic, T.; Recchia, F.; Rossi-Alvarez, C.; Szuecs, T. [Dipartimento di Fisica e Astronomia Galileo Galilei, Universita di Padova (Italy) and INFN Padova (Italy); Dipartimento di Fisica e Astronomia Galileo Galilei, Universita di Padova (Italy); and others

2012-11-12T23:59:59.000Z

351

Measurement of the lifetime of prompt neutrons in the system BARS-6 reactorLaser unit by the statistical frequency method  

Science Journals Connector (OSTI)

Experiments measuring the lifetime of prompt neutrons in the system BARS-6 reactorlaser unit by the statistical frequency method are described. A theoretical substantiation of the method employed is given on ...

S. A. Morozov; S. N. Kovtun; L. I. Prokhorova; P. S. Shutov; S. S. Shutov

1999-11-01T23:59:59.000Z

352

The Influence of Weight Concerns and Weight Control Expectancies in the Smoking Behavior of Spanish Adolescents  

E-Print Network [OSTI]

smoking in college-student samples (Brandon & Baker, 1991, Downey & Kilbey, 1995) and in nicotine-dependent community samples (Copeland, Brandon & Quinn, 1995). Hine, Tilleczek, Lewko, McKenzie-Ritcher, & Perreault (2005) found that individuals who... smoking initiation to regular smoking (Chassin et al., 1981; Chassin, Presson, & Sherman, 1984). In addition, positive expectancies are linked to greater smoking rates, levels of nicotine dependence, and relapse after quitting (Copeland, Brandon...

Berrios-Hernandez, Mayra

2012-07-16T23:59:59.000Z

353

Quantum Energy Expectation in Periodic Time-Dependent hamiltonians via Green Functions  

E-Print Network [OSTI]

Let $U_F$ be the Floquet operator of a time periodic hamiltonian $H(t)$. For each positive and discrete observable $A$ (which we call a {\\em probe energy}), we derive a formula for the Laplace time average of its expectation value up to time $T$ in terms of its eigenvalues and Green functions at the circle of radius $e^{1/T}$. Some simple applications are provided which support its usefulness.

Cesar R. de Oliveira; Mariza S. Simsen

2009-07-31T23:59:59.000Z

354

Essays on A Rational Expectations Model of Dividend Policy and Stock Returns  

E-Print Network [OSTI]

: + : : : : : : : : : : : : : : : : : : 87 4 V 0 and V 1 according to Increase in x : : : : : : : : : : : : : : : : : : 88 5 The Optimal Policy Functions Given xt: Model M : : : : : : : : : : 89 6 The Optimal Policy Functions Given zt: Model M : : : : : : : : : : 90 7 The Optimal Policy... Functions Given xt: Model Q : : : : : : : : : : : 91 8 The Optimal Policy Functions Given zt: Model Q : : : : : : : : : : : 92 9 Countercyclical Time-Varying Risks : : : : : : : : : : : : : : : : : : 93 10 Conditional Expected Market Returns and M...

Nam, Changwoo

2011-10-21T23:59:59.000Z

355

Programmable AC power supply for simulating power transient expected in fusion reactor  

SciTech Connect (OSTI)

This paper focus on control engineering of the programmable AC power source which has capability to simulate power transient expected in fusion reactor. To generate the programmable power source, AC-AC power electronics converter is adopted to control the power of a set of heaters to represent the transient phenomena of heat exchangers or heat sources of a fusion reactor. The International Thermonuclear Experimental Reactor (ITER) plasma operation scenario is used as the basic reference for producing this transient power source. (authors)

Halimi, B. [Seoul National Univ., Seoul 151-744 (Korea, Republic of); Suh, K. Y. [Seoul National Univ., Seoul 151-744 (Korea, Republic of); PHILOSOPHIA, 1 Gwanak Ro, Gwanak Gu, Seoul 151-744 (Korea, Republic of)

2012-07-01T23:59:59.000Z

356

Estimating expected energy capture at potential wind turbine sites in Norway  

Science Journals Connector (OSTI)

To estimate the expected energy capture at potential wind turbine sites in Norway, a combination of low-cost wind monitoring, correlation and models are used. The wind monitoring, the correlation and the uncertainty of the method are described. Results from two cases are compared with predictions made with the model WASP. The results indicate that measurements are needed near potential wind turbine sites, until a high quality reference data set has been established, and models for complex terrain effects are validated.

T.A. Nygaard

1992-01-01T23:59:59.000Z

357

Outcome-expectancy and self-efficacy: Reasons or results of flood preparedness intention?  

Science Journals Connector (OSTI)

Abstract This study will examine whether the relationship between flood disaster preparedness intention and outcome-expectancy is mediated by self-efficacy (Casual chain model) or whether outcome-expectancy and self-efficacy of a disaster preparedness measure and/or action are expression of a more general attitude toward disaster preparedness (Associationist view). The nature of relationships between these three variables had been explored by comparing the zero-order relations and the correlations after controlling the third variable. The study primarily was on a survey conducted through face to face structured interviews in three flood prone slum communities in Mumbai. We found that Casual chain method was applicable only for evacuation behavior, otherwise strong support was observed in favor of Associationist view in other flood preparedness measures such as raising plinth level, use durable building materials, store drinking water and food and using sandbags. These findings counter the conventional cognitive approach or casual chain model which advocates the relationship between outcome-expectancy, self-efficacy and preparedness intention; respectively sequential. Instead, this study suggest that disaster preparedness in many cases may depend on individuals general attitude which may be governed by their culture and group norms.

Subhajyoti Samaddar; Roshni Chatterjee; Bijayanad Misra; Hirokazu Tatano

2014-01-01T23:59:59.000Z

358

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

359

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. Knbel; C. Kozhuharov; J. Kurcewicz; S. A. Litvinov; M. Mazzocco; G. Mnzenberg; C. Nociforo; F. Nolden; W. Pla; C. Scheidenberger; M. Steck; B. Sun; M. Winkler

2005-09-15T23:59:59.000Z

360

Lifetime of the K?=8- isomer in the neutron-rich nucleus Er174, and N=106 E1 systematics  

Science Journals Connector (OSTI)

Chopped-beam techniques and ?-ray spectroscopy with Gammasphere have been used to measure the lifetime of the 1112-keV 8- isomeric state in Er174. The value obtained of ?=5.8(4) s corresponds to a reduced hindrance of f?=98 for the 163-keV E1 transition to the 8+ state of the ground-state band, in good agreement with the systematics of the corresponding E1 strengths in the N=106 isotones. The K-mixing in the 8- states is calculated in the context of the particle-rotor model and used to extract the underlying reduced hindrances.

G. D. Dracoulis; G. J. Lane; F. G. Kondev; H. Watanabe; D. Seweryniak; S. Zhu; M. P. Carpenter; C. J. Chiara; R. V. F. Janssens; T. Lauritsen; C. J. Lister; E. A. McCutchan; I. Stefanescu

2009-06-29T23:59:59.000Z

Note: This page contains sample records for the topic "median expected lifetime" 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

On the rationality of using risk acceptance criteria based on the expected utility theory  

Science Journals Connector (OSTI)

Risk acceptance criteria, as upper limits of acceptable risk, are often used to control accident risk. In the literature, there is a discussion about the suitability of using such criteria. The purpose of this paper is to contribute to this discussion by questioning the rationale of using risk acceptance criteria in accordance with the ruling paradigm for decision-making under uncertainty the expected utility theory. Attention is given to the rationality of using risk acceptance criteria from both a firm's and a societal point of view.

Eirik Bjorheim Abrahamsen

2011-01-01T23:59:59.000Z

362

A rational expectations model of the U.K. under floating exchange rates  

Science Journals Connector (OSTI)

This paper constructs a model of an open economy with both trade and capital flows. Private sector wealth holders are assumed to be concerned with balance sheet ratios as in a portfolio choice theoretic model. Rational expectations in the strict Muth sense is introduced via the asset allocation decision by the private sector. International trade and capital flows are treated as in the monetary theory of the balance of payments. The model is constructed for the U.K. economy and simulation and forecasting exercises are conducted for the floating period.

Patrick Minford; Michael Brech; Kent Matthews

1980-01-01T23:59:59.000Z

363

Webinar: The L Prize-Winning LED A19 ReplacementWhat Commercial Building Owners/Operators Can Expect in 2012  

Broader source: Energy.gov [DOE]

This January 18, 2012 webinar presented an update on the status of LED A19 lamp options for commercial businesses, with an overview of DOE's L Prize competition and the rigorous lab, lifetime, and...

364

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

365

Epistemology and expectations survey about experimental physics: Development and initial results  

Science Journals Connector (OSTI)

In response to national calls to better align physics laboratory courses with the way physicists engage in research, we have developed an epistemology and expectations survey to assess how students perceive the nature of physics experiments in the contexts of laboratory courses and the professional research laboratory. The Colorado Learning Attitudes about Science Survey for Experimental Physics (E-CLASS) evaluates students epistemology at the beginning and end of a semester. Students respond to paired questions about how they personally perceive doing experiments in laboratory courses and how they perceive an experimental physicist might respond regarding their research. Also, at the end of the semester, the E-CLASS assesses a third dimension of laboratory instruction, students reflections on their courses expectations for earning a good grade. By basing survey statements on widely embraced learning goals and common critiques of teaching labs, the E-CLASS serves as an assessment tool for lab courses across the undergraduate curriculum and as a tool for physics education research. We present the development, evidence of validation, and initial formative assessment results from a sample that includes 45 classes at 20 institutions. We also discuss feedback from instructors and reflect on the challenges of large-scale online administration and distribution of results.

Benjamin M. Zwickl; Takako Hirokawa; Noah Finkelstein; H.?J. Lewandowski

2014-06-02T23:59:59.000Z

366

How useful is the Marginal Expected Shortfall for the measurement of systemic exposure? A practical assessment  

Science Journals Connector (OSTI)

Abstract We explore the practical relevance from a supervisors perspective of a popular market-based indicator of the exposure of a financial institution to systemic risk, the Marginal Expected Shortfall (MES). The MES of an institution can be defined as its expected equity loss when the market itself is in its left tail. We estimate the dynamic MES recently proposed by Brownlees and Engle (2012) for a panel of 68 large US banks over the last decade and a half. Running panel regressions of the MES on bank characteristics, we first find that the MES can be roughly rationalized in terms of standard balance-sheet indicators of bank financial soundness and systemic importance. We then ask whether the cross section of the MES can help to identify ex ante, i.e. before a crisis unfolds, which institutions are more likely to suffer the most severe losses ex post, i.e. once it has unfolded. Unfortunately, using the 20072009 crisis as a natural experiment, we find that some standard balance-sheet ratios are better able than the MES to predict large equity losses conditionally to a true crisis.

Julien Idier; Gildas Lam; Jean-Stphane Msonnier

2014-01-01T23:59:59.000Z

367

The development of regulatory expectations for computer-based safety systems for the UK nuclear programme  

SciTech Connect (OSTI)

The Nuclear Installations Inspectorate (NII) of the UK's Health and Safety Executive (HSE) has completed a review of their Safety Assessment Principles (SAPs) for Nuclear Installations recently. During the period of the SAPs review in 2004-2005 the designers of future UK naval reactor plant were optioneering the control and protection systems that might be implemented. Because there was insufficient regulatory guidance available in the naval sector to support this activity the Defence Nuclear Safety Regulator (DNSR) invited the NII to collaborate with the production of a guidance document that provides clarity of regulatory expectations for the production of safety cases for computer based safety systems. A key part of producing regulatory expectations was identifying the relevant extant standards and sector guidance that reflect good practice. The three principal sources of such good practice were: IAEA Safety Guide NS-G-1.1 (Software for Computer Based Systems Important to Safety in Nuclear Power Plants), European Commission consensus document (Common Position of European Nuclear Regulators for the Licensing of Safety Critical Software for Nuclear Reactors) and IEC nuclear sector standards such as IEC60880. A common understanding has been achieved between the NII and DNSR and regulatory guidance developed which will be used by both NII and DNSR in the assessment of computer-based safety systems and in the further development of more detailed joint technical assessment guidance for both regulatory organisations. (authors)

Hughes, P. J. [HM Nuclear Installations Inspectorate Marine Engineering Submarines Defence Nuclear Safety Regulator Serco Assurance Redgrave Court, Merton Road, Bootle L20 7HS (United Kingdom); Westwood, R.N; Mark, R. T. [FLEET HQ, Leach Building, Whale Island, Portsmouth, PO2 8BY (United Kingdom); Tapping, K. [Serco Assurance,Thomson House, Risley, Warrington, WA3 6GA (United Kingdom)

2006-07-01T23:59:59.000Z

368

Expected hysteresis of the 23-rd solar cycle in the heliosphere  

Science Journals Connector (OSTI)

Solar wind and interplanetary magnetic field parameters are investigated using the data obtained at the Earth's orbit for the 2023 solar cycles. The time-epoch analysis and hysteresis curves of the heliospheric parameters show some general and specific properties of the cycles. We have found specific hysteresis behaviour when the solar wind energy flow and the induced electric field are plotted against the sunspot number during 2022 solar cycles. Based on these finding and using measured heliospheric parameters during the rising phase of the current 23-rd solar cycle we are able to present some semi-quantitative estimations of the expected solar wind energy flux and the induced electric field for the time period after the solar maximum. The similarity between the rising phases of the 23-rd and 20-th solar cycles presents additional grounds for expectations of the lower maximum of the current solar cycle and the geomagnetic activity in the present solar cycle as compared with the 21-st and 22-nd solar cycles.

A.V. Dmitriev; A.V. Suvorova; I.S. Veselovsky

2002-01-01T23:59:59.000Z

369

Advisor's Agreement Worksheet This worksheet can be a means of communicating expectations of the organization-advisor relationship.  

E-Print Network [OSTI]

Advisor's Agreement Worksheet This worksheet can be a means of communicating expectations of the organization-advisor relationship. Both the advisor and the leaders of your organization should review each item. Organization leaders should check off your expectations of the advisor in the "Org" column

Maxwell, Bruce D.

370

Solution of Nonlinear Rational Expectations Models with Applications toFinite-Horizon Life-Cycle Models of Consumption  

Science Journals Connector (OSTI)

This paper considers the solution of nonlinear rational expectations models resulting from the optimality conditions of a finite-horizon intertemporal optimization problem satisfying Bellman's principle of optimality (and possibly involving inequality ... Keywords: exact and certainty-equivalent solutions, intertemporal consumer choice, minimum weighted residual method, nonlinear rational expectations models

Michael Binder; M. Hashem Pesaran; S. Hossein Samiei

2000-04-01T23:59:59.000Z

371

U.S. average gasoline and diesel fuel prices expected to be slightly lower in 2013 than in 2012  

U.S. Energy Information Administration (EIA) Indexed Site

average gasoline and diesel fuel prices expected to be average gasoline and diesel fuel prices expected to be slightly lower in 2013 than in 2012 Despite the recent run-up in gasoline prices, the U.S. Energy Information Administration expects falling crude oil prices will lead to a small decline in average motor fuel costs this year compared with last year. The price for regular gasoline is expected to average $3.55 a gallon in 2013 and $3.39 next year, according to EIA's new Short-Term Energy Outlook. That's down from $3.63 a gallon in 2012. For the short-term, however, pump prices are expected to peak at $3.73 per gallon in May because of higher seasonal fuel demand and refiners switching their production to make cleaner burning gasoline for the summer. Diesel fuel will continue to cost more than gasoline because of strong global demand for diesel.

372

WTI Crude Oil Prices Are Expected To Remain Relatively High Through At  

Gasoline and Diesel Fuel Update (EIA)

5 5 Notes: As we just saw, one of the primary factors impacting gasoline price is the crude oil price. This graph shows monthly average spot West Texas Intermediate crude oil prices. Spot WTI crude oil prices broke $36 per barrel in November briefly as anticipated boosts to world supply from OPEC and other sources did not show up in actual stocks data. Crude oil prices are expected to be about $30 per barrel for the rest of this year, but note the uncertainty bands on this projection. They give an indication of how difficult it is to know what these prices are going to do. Also, EIA does not forecast volatility. This relatively flat forecast could be correct on average, with wide swings around the base line. With the EIA forecast for crude prices staying high this year,

373

Optimal dimensions minimizing expected travel time of a single machine flow rack AS/RS  

Science Journals Connector (OSTI)

Abstract In this paper, the aim is to determine the optimal dimensions of a flow rack automated storage and retrieval system (AS/RS) using a single machine for storage and retrieval operations. These optimal dimensions are evaluated for minimum expected travel times of the storage and retrieval machine. An enumeration technique is used on a large range of system configurations going from 100 to 20,000 storage segments. Initially, optimization is carried out on six travel time expressions dealing with single and dual cycle travel times considering two dwell point positions. The results are then studied to investigate the influence of travel time expressions on both optimal dimensions and the shape factor of the system rack. Secondly, a new generalized mathematical model was developed by introducing an occurrence proportion parameter, relative to dual cycles, in order to determine the influence of the system functioning (proportion of dual cycles and load rate) on optimal dimensions.

Mohammed Adel Hamzaoui; Zaki Sari

2014-01-01T23:59:59.000Z

374

Construction and Expected Performance of the Hadron Blind Detector for the PHENIX Experiment at RHIC  

SciTech Connect (OSTI)

A new hadron blind detector (HBD) for electron identification in high density hadron environment has been installed in the PHENIX experiment at RHIC in the fall of 2006. The HBD will identify low momentum electron-positron pairs to reduce the combinatorial background in the e{sup +}e{sup -} mass spectrum, mainly in the region below 1 GeV/c2. The HBD is a windowless proximity-focusing Cherenkov detector with a radiator length of 50 cm, a CsI photocathode and three layers of gas electron multipliers (GEM). Pure CF4 is used as a radiator and a detector gas. This proceeding describes the construction details and the expected performance of the HBD.

Milov, A. [Brookhaven National Laboratory (BNL); Awes, Terry C [ORNL; Batsouli, Sotiria [University of Tennessee, Knoxville (UTK) & Oak Ridge National Laboratory (ORNL); Cianciolo, Vince [ORNL; Efremenko, Yuri [University of Tennessee, Knoxville (UTK) & Oak Ridge National Laboratory (ORNL); Read Jr, Kenneth F [ORNL; Silvermyr, David O [ORNL; Sorensen, Soren P [University of Tennessee, Knoxville (UTK); Stankus, Paul W [ORNL; Young, Glenn R [ORNL; Zhang, Chun [University of Tennessee, Knoxville (UTK) & Oak Ridge National Laboratory (ORNL); PHENIX, Collaboration [The

2007-01-01T23:59:59.000Z

375

An Estimate of the Spectral Intensity Expected from the Molecular Bremsstrahlung Radiation in Extensive Air Showers  

E-Print Network [OSTI]

A detection technique of ultra-high energy cosmic rays, complementary to the fluorescence technique, would be the use of the molecular Bremsstrahlung radiation emitted by low-energy electrons left after the passage of the showers in the atmosphere. The emission mechanism is expected from quasi-elastic collisions of electrons produced in the shower by the ionisation of the molecules in the atmosphere. In this article, a detailed calculation of the spectral intensity of photons at ground level originating from the transitions between unquantised energy states of free ionisation electrons is presented. In the absence of absorption of the emitted photons in the plasma, the obtained spectral intensity is shown to be 5 10^{-26} W m^{-2}Hz^{-1} at 10 km from the shower core for a vertical shower induced by a proton of 10^{17.5} eV.

Samarai, I Al; Lebrun, D; Letessier-Selvon, A; Salamida, F

2014-01-01T23:59:59.000Z

376

Microbial Gas Generation Under Expected Waste Isolation Pilot Plant Repository Conditions: Final Report  

SciTech Connect (OSTI)

Gas generation from the microbial degradation of the organic constituents of transuranic (TRU) waste under conditions expected in the Waste Isolation Pilot Plant (WIPP) was investigated. The biodegradation of mixed cellulosic materials and electron-beam irradiated plastic and rubber materials (polyethylene, polyvinylchloride, hypalon, leaded hypalon, and neoprene) was examined. We evaluated the effects of environmental variables such as initial atmosphere (air or nitrogen), water content (humid ({approx}70% relative humidity, RH) and brine inundated), and nutrient amendments (nitogen phosphate, yeast extract, and excess nitrate) on microbial gas generation. Total gas production was determined by pressure measurement and carbon dioxide (CO{sub 2}) and methane (CH{sub 4}) were analyzed by gas chromatography; cellulose degradation products in solution were analyzed by high-performance liquid chromatography. Microbial populations in the samples were determined by direct microscopy and molecular analysis. The results of this work are summarized.

Gillow, J.B.; Francis, A.

2011-07-01T23:59:59.000Z

377

USEPA quality assurance auditor is scheduled for a visit: What can I expect  

SciTech Connect (OSTI)

Environmental studies involving data collection activities conducted by or for the United States Environmental Protection Agency (USEPA) are required to undergo a review of their data collection activities. This review is usually in the form of an independent quality assurance (QA) audit. Those studies involving open-path Fourier transform infrared (OP/FTIR) monitoring are also expected to meet this requirement. To help evaluate the effectiveness of QA programs designed for OP/FTIR studies, an audit questionnaire was developed. This questionnaire provides a meaningful tool in assessing the study`s compliance with Agency and laboratory QA requirements and currently accepted quality control (QC) procedures. This paper introduces this audit questionnaire and discusses the basis for its development.

Childers, L.O.

1995-12-31T23:59:59.000Z

378

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

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

Proposition for High Proposition for High Lifetime (p-type) and Thin Silicon Materials in Solar PV Applications Preprint Alan Goodrich, Michael Woodhouse, and Peter Hacke Presented at the 2012 IEEE Photovoltaic Specialists Conference Austin, Texas June 3-8, 2012 Conference Paper NREL/CP-6A20-55477 June 2012 NOTICE The submitted manuscript has been offered by an employee of the Alliance for Sustainable Energy, LLC (Alliance), a contractor of the US Government under Contract No. DE-AC36-08GO28308. Accordingly, the US Government and Alliance retain a nonexclusive royalty-free license to publish or reproduce the published form of this contribution, or allow others to do so, for US Government purposes. This report was prepared as an account of work sponsored by an agency of the United States government.

379

Self-consistent analysis of mobility-lifetime products and subgap absorption on different PECVD a-Si:H films  

SciTech Connect (OSTI)

The photoconductivity and subband gap absorption measurements over a wide range of generation rate(G) have been carried out on diluted and undiluted a-Si:H. It is found that in these high quality films there are significant differences in the functional dependence of mobility-lifetime ({micro}{tau}) products on G. In addition to the different values of subgap absorption ({alpha}) there are also distinct differences in the dependence of {alpha} on photon energy (E) as well as G. It is difficult to self consistently analyze the results on the undiluted film with the previously used three gaussian distribution, particularly at high generation rates. Self consistent analysis is obtained when the (+/0) transitions of negative charged defects and the (0/{minus}) transitions of positive charged defects are introduced respectively closer to the valence and conduction bands. This new gap state distribution is a better representation for the defect pool model and potential fluctuation model.

Jiao, L.; Semoushikina, S.; Lee, Y.; Wronski, C.R.

1997-07-01T23:59:59.000Z

380

Plastic energy dissipation model for lifetime prediction of zirconium and zircaloy-4 fatigued at RT and 400 C  

SciTech Connect (OSTI)

Zirconium and zircaloy-4 are generally used as fuel tubes in pressurized heavy water reactors because of their low neutron absorption cross-section, excellent corrosion resistance, good strength and ductility. Low cycle fatigue properties of zirconium and zircaloy-4 were investigated at RT and 400 C. The microscopic structure was determined using scanning electron microscopy and transmission electron microscopy techniques. On the basis of analyses of fatigue damage mechanism, it is believed that fatigue is an irreversible energy dissipation process. Thus, the plastic dissipation energy per cycle is selected as a fatigue damage variable. The accumulated plastic dissipation energy is calculated at the condition of considering cyclic hardening, saturation and softening characters of zirconium and zircaloy-4 during cycling. The testing results show that they present a power law between the plastic dissipation energy and fatigue lifetime.

Lin, X.; Haicheng, G. [Xi`an Jiaotong Univ. (China). State Key Lab. for Mechanical Behavior of Materials

1998-04-01T23:59:59.000Z

Note: This page contains sample records for the topic "median expected lifetime" 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

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

382

Lifetime and failure strain prediction for material subjected to non-stationary tensile loading conditions: applications to Zircaloy - 4. [Monkman-Grant relationship  

SciTech Connect (OSTI)

The life fraction rule (LFR) is used to calculate the lifetime of materials subjected to stress and temperature ramp loading. The solutions for the individual nonstationary temperature and stress loading conditions can be applied to predict also the lifetime of structures loaded by superimposed ramps solely on the basis of normal 'iso'-stress rupture data. The concept is applied to tensional stress and temperature cycling as well. As compared with the peculiarities of the problem, the agreement between experiments and calculations is encouraging. 16 refs.

Bocek, M.

1982-01-01T23:59:59.000Z

383

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

384

First laboratory perforating tests in coal show lower-than-expected penetration  

SciTech Connect (OSTI)

Worldwide Coal Bed Methane (CBM) resources are huge, estimated at 3,000 to 9,000 Tcf. The production rate from CBM reservoirs is low, perhaps 50-100 mcf/day. Various completion methods are being evaluated and new technologies are being developed with the aim of increasing production rates. Considering this interest and activity level, little attention has been paid to the CBM completion fundamentals. Perforating is a critical part of this process, especially considering the PRB development migration from single-coal, open-hole completions into multi-zone, cased-hole completions. This paper describes the first known laboratory-testing program to investigate shaped charge penetration in coal targets. We describe mechanical properties of the coals tested, and penetration results for different shaped charges (of different designs), shot at various stress conditions. CT scan and cutaway imaging of the perforation tunnels are also discussed. Tests were conducted under dry and saturated conditions. The preliminary experiments reported here indicate that shaped charge penetration in coal is significantly less than expected, considering the target's density and strength. The authors provide insight into what may be the reasons for these unexpected results and recommend a path forward for shaped charge testing, designs, predictive tools, and how to optimize CBM completions.

Snider, P.M.; Walton, I.C.; Skinner, T.K.; Atwood, D.C.; Grove, B.M.; Graham, C.

2008-06-15T23:59:59.000Z

385

Classification of urban historic areas through multi?sensorial perception and expectation.  

Science Journals Connector (OSTI)

The historic areas of cities are often under renewal processes. Although the general aims are to increase tourist attraction to protect and restore the cultural heritage and to improve quality of life for the local citizens the renewal processes are generally based on architectural and design projects that privilege the visual perception. This approach does not take into account that the perception and enjoyment of the atmosphere in a historic area is a mix of phenomena that should be considered and citizens and tourists perceive these phenomena in a dynamic way (e.g. walking along streets crossing squares) and from different points of view. A new approach for the classification of urban historic areas is proposed. The classification is based on two emotional dimensions (calmness and vibrancy) determined by the variations of environmental parameters such as sound quality and light and aesthetical parameters such as spatiality and urban degradation. Relationships between perceived soundscape and other parameters are under investigation on the basis of the data collected by interviews. A new approach to draw maps dealing with subjective perception and expectation is proposed in the view to be a tool for the urban renewal decisions and more effective and sustainable projects.

Luigi Maffei; Maria Di Gabriele; Giovanni Brambilla; Patrizio Verardi

2010-01-01T23:59:59.000Z

386

Effects of microbial processes on gas generation under expected WIPP repository conditions: Annual report through 1992  

SciTech Connect (OSTI)

Microbial processes involved in gas generation from degradation of the organic constituents of transuranic waste under conditions expected at the Waste Isolation Pilot Plant (WIPP) repository are being investigated at Brookhaven National Laboratory. These laboratory studies are part of the Sandia National Laboratories -- WIPP Gas Generation Program. Gas generation due to microbial degradation of representative cellulosic waste was investigated in short-term (< 6 months) and long-term (> 6 months) experiments by incubating representative paper (filter paper, paper towels, and tissue) in WIPP brine under initially aerobic (air) and anaerobic (nitrogen) conditions. Samples from the WIPP surficial environment and underground workings harbor gas-producing halophilic microorganisms, the activities of which were studied in short-term experiments. The microorganisms metabolized a variety of organic compounds including cellulose under aerobic, anaerobic, and denitrifying conditions. In long-term experiments, the effects of added nutrients (trace amounts of ammonium nitrate, phosphate, and yeast extract), no nutrients, and nutrients plus excess nitrate on gas production from cellulose degradation.

Francis, A.J.; Gillow, J.B.

1993-09-01T23:59:59.000Z

387

Estimation of expected human attention weights based on a decision field theory model  

Science Journals Connector (OSTI)

Abstract Modeling human decision making behavior is of great interest in understanding how a decision maker weights different decision attributes when making a decision. Such knowledge is critically important in helping predict future decisions, evaluating human decision performance, and improving the design of human and machine interface systems. Decision field theory (DFT) provides a psychological representation of the cognitive deliberation process, which is driven by the fluctuations of a persons attention among decision attributes. In this research area, the most common use of a DFT model is to estimate or predict the human decisions by using a set of pre-specified expected attention weights (EAWs) in the DFT model. Unlike other research, this paper extends the capabilities of DFT in a complementary direction, showing how to fit or train a DFT model by estimating the EAW based on sequentially obtained samples of decision trials. Furthermore, the inherent connection between the EAW and the decision choice uncertainty is investigated. The proposed modeling method is discussed in detail for a two-alternative decision scenario based on two attributes. Both simulations and a case study are conducted in the paper to demonstrate the effectiveness of the proposed modeling approach.

Andres G. Abad; Jionghua (Judy) Jin; Young-Jun Son

2014-01-01T23:59:59.000Z

388

Very high energy neutrino expectation from Fanaroff-Riley I sources  

E-Print Network [OSTI]

Fanaroff-Riley I radiogalaxies have been observed in TeV gamma-rays during the last decades. The origin of the emission processes related with this energy band is still under debate. Here we consider the case of the two closest Fanaroff-Riley I objects: Centaurus A and M87. Their entire broadband spectral energy distributions and variability fluxes show evidences that leptonic models are not sufficient to explain their fluxes above 100 GeV. Indeed, both objects have been imaged by LAT instrument aboard of Fermi telescope with measured spectra well connected with one-zone leptonic models. However, to explain the TeV spectra obtained with campaigns by H.E.S.S., for Centaurus A, and by VERITAS, MAGIC and H.E.S.S. for M87, different emission processes must be introduced. In this work we evoke hadronic scenarios to describe the TeV gamma-ray fluxes observed and to obtain the expected neutrino counterparts for each considered TeV campaign. With the obtained neutrino spectra we calculate, through Monte Carlo simulat...

Marinelli, A

2014-01-01T23:59:59.000Z

389

Expected result of firing an ICE load on Z without vacuum.  

SciTech Connect (OSTI)

In addressing the issue of the determining the hazard categorization of the Z Accelerator of doing Special Nuclear Material (SNM) experiments the question arose as to whether the machine could be fired with its central vacuum chamber open, thus providing a path for airborne release of SNM materials. In this report we summarize calculations that show that we could only expect a maximum current of 460 kA into such a load in a long-pulse mode, which will be used for the SNM experiments, and 750 kA in a short-pulse mode, which is not useful for these experiments. We also investigated the effect of the current for both cases and found that for neither case is the current high enough to either melt or vaporize these loads, with a melt threshold of 1.6 MA. Therefore, a necessary condition to melt, vaporize, or otherwise disperse SNM material is that a vacuum must exist in the Z vacuum chamber. Thus the vacuum chamber serves as a passive feature that prevents any airborne release during the shot, regardless of whatever containment may be in place.

Savage, Mark Edward; Struve, Kenneth William; Lemke, Raymond William

2010-07-01T23:59:59.000Z

390

Influences of aspirations and expectations on contest performance at the National FFA Agricultural Mechanics Career Development Event, 2001-2006  

E-Print Network [OSTI]

The purpose of this study was to examine how performance expectations influence contest performance at the National FFA Agricultural Mechanics Career Development Event. The population for this study included all participants at the national contest...

Clark, Travis Scott

2009-05-15T23:59:59.000Z

391

Low-Order Spectral Analysis of the Kirchhoff Matrix for a Probabilistic Graph With a Prescribed Expected Degree Sequence  

E-Print Network [OSTI]

We study the eigenvalue distribution of the Kirchhoff matrix of a large-scale probabilistic network with a prescribed expected degree sequence. This spectrum plays a key role in many dynamical and structural network problems ...

Preciado, Victor M.

392

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

393

Redundancy Method to assess Electromigration Lifetime in power grid design Boukary OUATTARA 1,2, Lise DOYEN 1, David NEY 1, Habib MEHREZ 2 , Pirouz BAZARGAN-  

E-Print Network [OSTI]

Redundancy Method to assess Electromigration Lifetime in power grid design Boukary OUATTARA 1). This phenomenon becomes critical in deep submicron design technology. In this paper we assess chip power grid prediction. In this paper we analyze the impact of EM degradation in power grid on a chip functionalities. We

Paris-Sud XI, Université de

394

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

395

Effects of Cu Diffusion from ZnTe:Cu/Ti Contacts on Carrier Lifetime of CdS/CdTe Thin Film Solar Cells: Preprint  

SciTech Connect (OSTI)

We study the performance of CdS/CdTe thin film PV devices processed with a ZnTe:Cu/Ti contact to investigate how carrier lifetime in the CdTe layer is affected by Cu diffusion from the contact.

Gessert, T. A.; Metzger, W. K.; Asher, S. E.; Young, M. R.; Johnston, S.; Dhere, R. G.; Duda, A.

2008-05-01T23:59:59.000Z

396

Site Effect and Expected Seismic Performance of Buildings in Palestine? Case Study: Nablus City  

Science Journals Connector (OSTI)

The effects of local geology on ground?motion amplification and building damage were studied in Palestine?West Bank. Nakamura's method of microtremor analysis was applied in this study. The measurements showed significantly higher amplification in the frequency range of building vulnerability in different parts of Nablus city. This finding is consistent with the distribution of the earthquake damage grades in the urban areas struck by the 11 February 2004 earthquake ( ML ?=?5.2) with a focal depth of 17 km beneath the northeastern part of the Dead Sea Basin. Quite large differences in amplification between around 1 and 9 were computed between the eastern and western rims of the city. The downtown built in the central part of the city on soft clay marl and valley deposits whereas the northern and southern parts of urban areas in Nablus city lying on mountains consist of consolidated carbonates bedrock. In the central part of the city and at the rims where the thickness of fluvial deposits and soft formations is about 15 m amplifications between 6.74 and 8.67 for dominant natural period range of 0.81.1 sec were obtained. On the southern and northern mountains which are located on limestone rocks covered with a thin layer of soil the amplification in the same frequency range was low. Calculating the natural period of the existing common buildings ( T b ) in the studied area (buildings with 1012 stories) by using the dynamic analysis method. The values of T b obtained were much closed to the site dominant natural period (Ts). The findings of this study indicate that the expected differences in damage grades for urban areas in Nablus city could be attributed to variations in the thickness and physical properties of Tertiary?Quaternary sediments which appear to be rather heterogeneous.

Jalal N. Al?Dabbeek; Radwan J. El?Kelani

2008-01-01T23:59:59.000Z

397

Global warming estimates, media expectations, and the asymmetry of scientific challenge  

Science Journals Connector (OSTI)

Mass media in the U.S. continue to suggest that scientific consensus estimates of global climate disruption, such as those from the Intergovernmental Panel on Climate Change (IPCC), are exaggerated and overly pessimistic. By contrast, work on the Asymmetry of Scientific Challenge (ASC) suggests that such consensus assessments are likely to understate climate disruptions. This paper offers an initial test of the competing expectations, making use of the tendency for science to be self-correcting, over time. Rather than relying in any way on the IPCC process, the paper draws evidence about emerging science from four newspapers that have been found in past work to be biased against reporting IPCC findings, consistently reporting instead that scientific findings are in dispute. The analysis considers two time periods one during the time when the papers were found to be overstating challenges to then-prevailing scientific consensus, and the other focusing on 2008, after the IPCC and former Vice-President Gore shared the Nobel Prize for their work on climate disruption, and before opinion polls showed the U.S. public to be growing more skeptical toward climate science once again. During both periods, new scientific findings were more than twenty times as likely to support the ASC perspective than the usual framing of the issue in the U.S. mass media. The findings indicate that supposed challenges to the scientific consensus on global warming need to be subjected to greater scrutiny, as well as showing that, if reporters wish to discuss both sides of the climate issue, the scientifically legitimate other side is that, if anything, global climate disruption may prove to be significantly worse than has been suggested in scientific consensus estimates to date.

William R. Freudenburg; Violetta Muselli

2010-01-01T23:59:59.000Z

398

Roles for Cardiac MyBP-C in Maintaining Myofilament Lattice Rigidity and Prolonging Myosin Cross-Bridge Lifetime  

SciTech Connect (OSTI)

We investigated the influence of cardiac myosin binding protein-C (cMyBP-C) and its constitutively unphosphorylated status on the radial and longitudinal stiffnesses of the myofilament lattice in chemically skinned myocardial strips of the following mouse models: nontransgenic (NTG), effective null for cMyBP-C (t/t), wild-type cMyBP-C expressed into t/t (WT{sub t/t}), and constitutively unphosphorylated cMyBP-C (AllP{sub -t/t}). We found that the absence of cMyBP-C in the t/t and the unphosphorylated cMyBP-C in the AllP{sub -t/t} resulted in a compressible cardiac myofilament lattice induced by rigor not observed in the NTG and WT{sub t/t}. These results suggest that the presence and phosphorylation of the N-terminus of cMyBP-C provides structural support and radial rigidity to the myofilament lattice. Examination of myofilament longitudinal stiffness under rigor conditions demonstrated a significant reduction in cross-bridge-dependent stiffness in the t/t compared with NTG controls, but not in the AllP{sub -t/t} compared with WT{sub t/t} controls. The absence of cMyBP-C in the t/t and the unphosphorylated cMyBP-C in the AllP{sub -t/t} both resulted in a shorter myosin cross-bridge lifetime when myosin isoform was controlled. These data collectively suggest that cMyBP-C provides radial rigidity to the myofilament lattice through the N-terminus, and that disruption of the phosphorylation of cMyBP-C is sufficient to abolish this structural role of the N-terminus and shorten cross-bridge lifetime. Although the presence of cMyBP-C also provides longitudinal rigidity, phosphorylation of the N-terminus is not necessary to maintain longitudinal rigidity of the lattice, in contrast to radial rigidity.

Palmer, B.M.; Sadayappan, S.; Wang, Y.; Weith, A.E.; Previs, M.J.; Bekyarova, T.; Irving, T.C.; Robbins, J.; Maughan, D.W. (Vermont)

2011-10-06T23:59:59.000Z

399

Microbial gas generation under expected Waste Isolation Pilot Plant repository conditions  

SciTech Connect (OSTI)

Gas generation from the microbial degradation of the organic constituents of transuranic waste under conditions expected at the Waste Isolation Pilot Plant (WIPP) repository was investigated at Brookhaven National Laboratory. The biodegradation of mixed cellulosics (various types of paper) and electron-beam irradiated plastic and rubber materials (polyethylene, polyvinylchloride, neoprene, hypalon, and leaded hypalon) was examined. The rate of gas production from cellulose biodegradation in inundated samples incubated for 1,228 days at 30 C was biphasic, with an initial rapid rate up to approximately 600 days incubation, followed by a slower rate. The rate of total gas production in anaerobic samples containing mixed inoculum was as follows: 0.002 mL/g cellulose/day without nutrients; 0.004 mL/g cellulose/day with nutrients; and 0.01 mL/g cellulose/day in the presence of excess nitrate. Carbon dioxide production proceeded at a rate of 0.009 {micro}mol/g cellulose/day in anaerobic samples without nutrients, 0.05 {micro}mol/g cellulose/day in the presence of nutrients, and 0.2 {micro}mol/g cellulose/day with excess nitrate. Adding nutrients and excess nitrate stimulated denitrification, as evidenced by the accumulation of N{sub 2}O in the headspace (200 {micro}mol/g cellulose). The addition of the potential backfill bentonite increased the rate of CO{sub 2} production to 0.3 {micro}mol/g cellulose/day in anaerobic samples with excess nitrate. Analysis of the solution showed that lactic, acetic, propionic, butyric, and valeric acids were produced due to cellulose degradation. Samples incubated under anaerobic humid conditions for 415 days produced CO{sub 2} at a rate of 0.2 {micro}mol/g cellulose/day in the absence of nutrients, and 1 {micro}mol/g cellulose/day in the presence of bentonite and nutrients. There was no evidence of biodegradation of electron-beam irradiated plastic and rubber.

Francis, A.J.; Gillow, J.B.; Giles, M.R. [Brookhaven National Lab., Upton, NY (United States). Dept. of Applied Science

1997-03-01T23:59:59.000Z

400

Expectations as a key to understanding actor strategies in the field of fuel cell and hydrogen vehicles  

Science Journals Connector (OSTI)

Due to its environmental impact, the mobility system is increasingly under pressure. The challenges to cope with climate change, air quality, depleting fossil resources imply the need for a transition of the current mobility system towards a more sustainable one. Expectations and visions have been identified as crucial in the guidance of such transitions, and more specifically of actor strategies. Still, it remained unclear why the actors involved in transition activities appear to change their strategies frequently and suddenly. The empirical analysis of the expectations and strategies of three actors in the field of hydrogen and fuel cell technology indicates that changing actor strategies can be explained by rather volatile expectations related to different levels. Our case studies of the strategies of two large car manufacturers and the German government demonstrate that the car manufacturers refer strongly to expectations about the future regime, while expectations related to the socio-technical landscape level appear to be crucial for the strategy of the German government.

Bjrn Budde; Floortje Alkemade; K. Matthias Weber

2012-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "median expected lifetime" 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

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

402

A new expected upper limit on the rare decay B(s) ---> mu+ mu- with the D0 experiment  

SciTech Connect (OSTI)

We present a new expected upper limit of the rare decay branching ratio B{sub s} {yields} {mu}{sup +}{mu}{sup -} using about 5 fb{sup -1} of Run II data collected with the D0 detector at the Tevatron. When setting limits on the branching ratio, selected events are normalized to reconstructed B{sup {+-}} {yields} J/{Psi}K{sup {+-}} events in order to decrease the systematic uncertainty. The resulting expected upper limit is {Beta}(B{sub s} {yields} {mu}{sup +}{mu}{sup -}) = 4.3(5.3) x 10{sup -8} at the 90% (95%) C.L.

Ripp-Baudot, Isabelle; /Strasbourg, IPHC

2009-01-01T23:59:59.000Z

403

Expected k-coverage in wireless sensor networks Li-Hsing Yen *, Chang Wu Yu, Yang-Min Cheng  

E-Print Network [OSTI]

communications and micro-sensing MEMS technology has enabled the deployment of wireless sensor networksExpected k-coverage in wireless sensor networks Li-Hsing Yen *, Chang Wu Yu, Yang-Min Cheng 2005 Available online 24 August 2005 Abstract We are concerned with wireless sensor networks where n

Chen, Sheng-Wei

404

Expectations of Research Advisors 1. The advisor will be committed to the education and training of the graduate student to  

E-Print Network [OSTI]

Expectations of Research Advisors 1. The advisor will be committed to the education and training of the graduate student to facilitate his/her role as a future member of the scientific community. 2. The advisor will be committed to the research project of the graduate student. The advisor will assist the student with: a

Goldman, Steven A.

405

Application to the B.S./M.S. Program in Computer Science Solar ID number Expected bachelor's graduation date  

E-Print Network [OSTI]

Application to the B.S./M.S. Program in Computer Science Name Email Solar ID number Expected courses at Stony Brook. Applications must also include (i) a statement of purpose, (ii) a one or two-page resume, and (iii) two or three recommendation letters, at least one from a computer science faculty

Zadok, Erez

406

What to Expect in Russia Princeton Professor Mark Beissinger and American Journalist in Moscow James Brooke Discuss The  

E-Print Network [OSTI]

What to Expect in Russia Princeton Professor Mark Beissinger and American Journalist in Moscow James Brooke Discuss The Future of Russia's Democracy Movement and the Return of Vladimir Putin Monday, NYC Come hear a lively discussion of trends changing Russia. After Vladimir Putin returns

Rowley, Clarence W.

407

Technical Report 08-01, Robotics and Intelligent Systems, University of Plymouth, UK Personal Robot User Expectations  

E-Print Network [OSTI]

of a humanoid robot in a home were used to "paint the picture" of the subjects having a robot at home. They wereTechnical Report 08-01, Robotics and Intelligent Systems, University of Plymouth, UK 1 Personal Robot User Expectations S.N. Copleston1 and G. Bugmann2 School of Computing, Communication

Bugmann, Guido

408

Degree Level Expectations and Outcomes for Graduates Receiving the Degree of Bachelor of Applied Science in Engineering Science  

E-Print Network [OSTI]

Science in Engineering Science Faculty of Applied Science and Engineering University of Toronto Revised Science and Engineering receiving the Bachelor of Applied Science in Engineering Science degree have been of Engineering Science. This document builds on the degree level expectations developed for the Bachelor

Prodiæ, Aleksandar

409

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. Fernndez 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. Gonzlez Lpez; 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. Luc; 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. Martnez; 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 Fernndez; 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. Vzquez; G. Velev; C. Vellidis; C. Vernieri; M. Vidal; R. Vilar; J. Vizn; 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

410

Lifetime measurement of candidate chiral doublet bands in the Rh103,104 isotopes with the recoil-distance Doppler-shift method in inverse kinematics  

Science Journals Connector (OSTI)

Lifetimes of chiral candidate structures in Rh103,104 were measured using the recoil distance Doppler-shift method. The Gammasphere detector array was used in conjunction with the Cologne plunger device. Excited states of Rh103,104 were populated by the 11B(96Zr,4n)103Rh and 11B(96Zr,3n)104Rh fusion-evaporation reactions in inverse kinematics. Three and five lifetimes of levels belonging to the proposed chiral doublet bands are measured in Rh103 and Rh104, respectively. The previously observed even-odd spin dependence of the B(M1)/B(E2) values is caused by the variation in the B(E2) values, whereas the B(M1) values decrease as a function of spin.

T. Suzuki; G. Rainovski; T. Koike; T. Ahn; M. P. Carpenter; A. Costin; M. Danchev; A. Dewald; R. V. F. Janssens; P. Joshi; C. J. Lister; O. Mller; N. Pietralla; T. Shinozuka; J. Timr; R. Wadsworth; C. Vaman; S. Zhu

2008-09-22T23:59:59.000Z

411

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

412

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

413

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

414

Ehrenfest dynamics with a time-dependent density-functional-theory calculation of lifetimes and resonant widths of charge-transfer states of Li+ near an aluminum cluster surface  

Science Journals Connector (OSTI)

We present a time-dependent density-functional-theory (TDDFT) Ehrenfest dynamics approach to study the lifetime and the charge neutralization rate of a lithium ion near an aluminum cluster surface. The lifetime of the excited state as a function of the surface-atom distance can be determined, including the effects of level crossings, without prior quantitative information about the coupling between atomic levels and surface states. This method can be used to compute lifetimes of excited atomic states near a surface in both the weak- and the strong-coupling regions and in the avoided crossing region. Because TDDFT Ehrenfest dynamics is a mean-field theory, the wave function consists of contributions from several different excited states during the time propagation. The shortest lifetime is predicted near the region of the avoided crossing between the Li+-Al and the Li-Al+ states.

Christopher L. Moss; Christine M. Isborn; Xiaosong Li

2009-08-19T23:59:59.000Z

415

Effect of Sulfate Electrolyte Additives on LiNi1/3Mn1/3Co1/3O2/graphite Pouch Cell Lifetime: Correlation between XPS Surface Studies and Electrochemical Test Results.  

Science Journals Connector (OSTI)

Effect of Sulfate Electrolyte Additives on LiNi1/3Mn1/3Co1/3O2/graphite Pouch Cell Lifetime: Correlation between XPS Surface Studies and Electrochemical Test Results. ...

Lnac Madec; Jian Xia; Remi Petibon; Kathlyne J Nelson; Jon-Paul Sun; Ian G. Hill; Jeff R Dahn

2014-11-24T23:59:59.000Z

416

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

417

Preliminary Expected Performance Characteristics  

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

All insertion devices were assumed to be the maximum possible length of 4.8 m for permanent-magnet devices and 3.7 m for SCUs. The devices were chosen to represent the...

418

JOBS? Raising Expectations  

E-Print Network [OSTI]

and Carl Van Horn at the John J. Heldrich Center for Workforce Development, J. Bloustein School of Planning Services & Workforce Division NGA Center for Best Practices MARCH 2011 #12;ii NGA CENTER | DEgREES fOR Wha, Human Services & Workforce Division of the NGA Center for Best Practices (NGA Center); Maria Heidkamp

Thaxton, Christopher S.

419

Academic Expectations Presentation Introductions  

E-Print Network [OSTI]

Theater Music East Asian Languages & Cultures Health Policy & Management Art History Cinema Theater OnlineTools and Resources MinorsMinors Long-Term Plan At Orientation (Tomorrow) GroupAdvisement Computer Programs and Resources #12;Transition to USC and Viterbi Explore,Connect, Succeed! Orientation

Wang, Hai

420

EXPECTATIONS: Rush & Wendt  

E-Print Network [OSTI]

and Technical Assistance Needed Financial / Technical Assistance · Take into account the following needs Sed. Load (no BMP) BOD Load (no BMP) P Load (no BMP) N LOAD (no BMP) Water shed WITH BMPs LOADS: NO BMPS Sample Cost / Technical Assistance Matrix 319h$9,500DEQMonitor sediment load pre-post implement 20

Note: This page contains sample records for the topic "median expected lifetime" 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

Lab 07 Expectations  

E-Print Network [OSTI]

Discuss the effect of resistance on resonance. Does adding resistance change the resonant frequency? If so, how? - Graph by hand: Plot the approximate...

422

Lab 02 Expectations  

E-Print Network [OSTI]

Now we add air resistance. Repeat number 2 using equation (E). What is the new estimated escape velocity in miles/sec? Solve equation (E) analytically. Don t...

423

Alignment of Faculty Expectations and Course Preparation between First-Year Mathematics and Physics Courses and a Statics and Dynamics Course.  

E-Print Network [OSTI]

.......................................................................................................... 41 Summary ....................................................................................................... 52 SKILLS FROM FIRST-YEAR COURSES ? RESEARCH QUESTION #1 ........... 53 Methodology... FACULTY EXPECTATIONS ? RESEARCH QUESTION #2 ............................... 94 Methodology ................................................................................................. 94 Analysis...

Shryock, Kristi

2012-07-16T23:59:59.000Z

424

Expected dose for the early failure scenario classes in the 2008 performance assessment for the proposed high-level radioactive waste repository at Yucca Mountain, Nevada  

Science Journals Connector (OSTI)

Abstract Extensive work has been carried out by the U.S. Department of Energy (DOE) in the development of a proposed geologic repository at Yucca Mountain (YM), Nevada, for the disposal of high-level radioactive waste. In support of this development and an associated license application to the U.S. Nuclear Regulatory Commission (NRC), the DOE completed an extensive performance assessment (PA) for the proposed YM repository in 2008. This presentation describes the determination of expected dose to the reasonably maximally exposed individual (RMEI) specified in the NRC regulations for the YM repository for the early waste package (WP) failure scenario class and the early drip shield (DS) failure scenario class in the 2008 YM PA. The following topics are addressed: (i) properties of the early failure scenario classes and the determination of dose and expected dose the RMEI, (ii) expected dose and uncertainty in expected dose to the RMEI from the early WP failure scenario class, (iii) expected dose and uncertainty in expected dose to the RMEI from the early DS failure scenario class, (iv) expected dose and uncertainty in expected dose to the RMEI from the combined early WP and early DS failure scenario class with and without the inclusion of failures resulting from nominal processes, and (v) uncertainty in the occurrence of early failure scenario classes. The present article is part of a special issue of Reliability Engineering and System Safety devoted to the 2008 YM PA; additional articles in the issue describe other aspects of the 2008 YM PA.

J.C. Helton; C.W. Hansen; C.J. Sallaberry

2014-01-01T23:59:59.000Z

425

Expected dose for the igneous scenario classes in the 2008 performance assessment for the proposed high-level radioactive waste repository at Yucca Mountain, Nevada  

Science Journals Connector (OSTI)

Abstract Extensive work has been carried out by the U.S. Department of Energy (DOE) in the development of a proposed geologic repository at Yucca Mountain (YM), Nevada, for the disposal of high-level radioactive waste. In support of this development and an associated license application to the U.S. Nuclear Regulatory Commission (NRC), the DOE completed an extensive performance assessment (PA) for the proposed YM repository in 2008. This presentation describes the determination of expected dose to the reasonably maximally exposed individual (RMEI) specified in the NRC regulations for the YM repository for the igneous intrusive scenario class and the igneous eruptive scenario class in the 2008 YM PA. The following topics are addressed: (i) properties of the igneous scenario classes and the determination of dose and expected dose to the RMEI, (ii) expected dose and uncertainty in expected dose to the RMEI from the igneous intrusive scenario class, (iii) expected dose and uncertainty in expected dose to the RMEI from the igneous eruptive scenario class, (iv) expected dose and uncertainty in expected dose to the RMEI from the combined igneous intrusive and igneous eruptive scenario class, and (v) uncertainty in the occurrence of igneous scenario classes. The present article is part of a special issue of Reliability Engineering and System Safety devoted to the 2008 YM PA; additional articles in the issue describe other aspects of the 2008 YM PA.

C.J. Sallaberry; C.W. Hansen; J.C. Helton

2014-01-01T23:59:59.000Z

426

Expected dose for the seismic scenario classes in the 2008 performance assessment for the proposed high-level radioactive waste repository at Yucca Mountain, Nevada  

Science Journals Connector (OSTI)

Abstract Extensive work has been carried out by the U.S. Department of Energy (DOE) in the development of a proposed geologic repository at Yucca Mountain (YM), Nevada, for the disposal of high-level radioactive waste. In support of this development and an associated license application to the U.S. Nuclear Regulatory Commission (NRC), the DOE completed an extensive performance assessment (PA) for the proposed YM repository in 2008. This presentation describes the determination of expected dose to the reasonably maximally exposed individual (RMEI) specified in the NRC regulations for the YM repository for the seismic ground motion scenario class and the seismic fault displacement scenario class in the 2008 YM PA. The following topics are addressed: (i) definition of the seismic scenario classes and the determination of dose and expected dose to the RMEI, (ii) properties of the seismic ground motion scenario class, (iii) expected dose and uncertainty in expected dose to the RMEI for the seismic ground motion scenario class from 0 to 20,000yr, (iv) expected dose and uncertainty in expected dose to the RMEI for the seismic ground motion scenario class from 0 to 106yr, (v) properties of the seismic fault displacement scenario class including expected dose and uncertainty in expected dose to the RMEI from 0 to 20,000yr and 0 to 106yr, (vi) expected dose and uncertainty in expected dose to the RMEI for the combined ground motion and seismic fault displacement scenario class, and (vii) probabilities associated with seismic scenario classes. The present article is part of a special issue of Reliability Engineering and System Safety devoted to the 2008 YM PA; additional articles in the issue describe other aspects of the 2008 YM PA.

J.C. Helton; M.G. Gross; C.W. Hansen; C.J. Sallaberry; S.D. Sevougian

2014-01-01T23:59:59.000Z

427

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

428

Impact of an apparent radiation embrittlement rate on the life expectancy of PWR (pressurized-water-reactor) vessel supports  

SciTech Connect (OSTI)

Recent data from the HFIR vessel surveillance program indicate a substantial radiation embrittlement rate effect at low irradiation temperatures (/approximately/120/degree/F) for A212-B, A350-LF3, A105-II and corresponding welds. PWR vessel supports are fabricated of similar materials and are subjected to the same low temperatures and fast neutron fluxes (10/sup 8/ /minus/ 10/sup 9/ n/cm/sup 2//center dot/s, E > 1.0 MeV) as those in the HFIR vessel. Thus, the embrittlement rate of these structures may be greater than previously anticipated. A study sponsored by the NRC is under way at ORNL to determine the impact of the rate effect on PWR vessel support life expectancy. The scope includes the interpretation and application of the HFIR data, a survey of all LWR vessel support designs, and a structural and fracture-mechanics analysis of the supports for two specific PWR plants of particular interest with regard to a potential for support failure as a result of propagation of flaws. Calculations performed for one of the plants indicate best-estimate critical flaw size corresponding to 32 EFPY, of /approximately/0.4 in. It appears that low-cycle fatigue is not a viable mechanism for creation of flaws of this size. Thus, presumably such flaws would have to exist at the time of fabrication. 19 refs., 8 figs., 3 tabs.

Cheverton, R.D.; Pennell, W.E.; Robinson, G.C.; Nanstad, R.K.

1989-01-01T23:59:59.000Z

429

Text-Alternative Version: The L Prize-Winning LED A19 ReplacementWhat Commercial Building Owners/Operators Can Expect in 2012  

Broader source: Energy.gov [DOE]

Below is the text-alternative version of the "The L Prize-Winning LED A19 ReplacementWhat Commercial Building Owners/Operators Can Expect in 2012" webcast, held January 18, 2012.

430

Medians and Beyond: New Aggregation Techniques for Sensor Networks  

E-Print Network [OSTI]

power constraint (battery life), making communication very expensive. Another important issue. INTRODUCTION With the advances in hardware miniaturization and integration, it is possible to design tiny sensor devices that combine sensing with computation, storage, and communication. Availability of such de

Gao, Jie

431

Simulation, design, and testing of a portable concrete median barrier  

E-Print Network [OSTI]

highway departments are currently upgrading or expanding their major highways. This construction near a zone w1th large traff1c volumes travelling at h1gh speed creates a dangerous conflict between vehicles and workmen. To protect the vehicle occupants... Currently in Use Pacae 2 Typical Design of a Portable Barrier 3 Idealized Model of CMB System 4 Joint Spring Moment-Differential Rotation Relationship 5 Location of Vehicle Impact Force 13 Along Barrier 6 Adjustment Coefficient for Translational...

Walker, Kenneth Charles

2012-06-07T23:59:59.000Z

432

THE MEDIAN EYE OF LIMULUS: AN ULTRAVIOLET RECEPTOR  

Science Journals Connector (OSTI)

...BIOLOGICAL LABORATORY, WOODS HOLE, MASSACHUSETTS, AND BIOLOGICAL LABORATORIES OF HARVARD UNIVERSITY, CAMBRIDGE, MASSACHUSETTS Communicated October 14, 1963 Of...G. L., "The utilization of solar energy by aquatic organisms...

George Wald; James M. Krainin

1963-01-01T23:59:59.000Z

433

Alternative Formulation for the p-median Problem  

E-Print Network [OSTI]

It takes a feasible solution (y, z) for PH and adds to z as many zeros as necessary to fit .... for the kth longest path in a tree with applications to location problems.

434

Expectation-maximization algorithms for learning a finite mixture of univariate survival time distributions from partially specified class values  

SciTech Connect (OSTI)

Heterogeneity exists on a data set when samples from di#11;erent classes are merged into the data set. Finite mixture models can be used to represent a survival time distribution on heterogeneous patient group by the proportions of each class and by the survival time distribution within each class as well. The heterogeneous data set cannot be explicitly decomposed to homogeneous subgroups unless all the samples are precisely labeled by their origin classes; such impossibility of decomposition is a barrier to overcome for estimating #12;nite mixture models. The expectation-maximization (EM) algorithm has been used to obtain maximum likelihood estimates of #12;nite mixture models by soft-decomposition of heterogeneous samples without labels for a subset or the entire set of data. In medical surveillance databases we can find partially labeled data, that is, while not completely unlabeled there is only imprecise information about class values. In this study we propose new EM algorithms that take advantages of using such partial labels, and thus incorporate more information than traditional EM algorithms. We particularly propose four variants of the EM algorithm named EM-OCML, EM-PCML, EM-HCML and EM-CPCML, each of which assumes a specific mechanism of missing class values. We conducted a simulation study on exponential survival trees with five classes and showed that the advantages of incorporating substantial amount of partially labeled data can be highly signi#12;cant. We also showed model selection based on AIC values fairly works to select the best proposed algorithm on each specific data set. A case study on a real-world data set of gastric cancer provided by Surveillance, Epidemiology and End Results (SEER) program showed a superiority of EM-CPCML to not only the other proposed EM algorithms but also conventional supervised, unsupervised and semi-supervised learning algorithms.

Lee, Youngrok [Ames Laboratory

2013-05-15T23:59:59.000Z

435

Validation Studies for Numerical Simulations of Flow Phenomena Expected in the Lower Plenum of a Prismatic VHTR Reference Design  

SciTech Connect (OSTI)

The final design of the very high temperature reactor (VHTR) of the fourth generation of nuclear power plants (Gen IV) has not yet been established. The VHTR may be either a prismatic (block) or pebble bed type. It may be either gas-cooled or cooled with an as yet unspecified molten salt. However, a conceptual design of a gas-cooled VHTR, based on the General Atomics GT-MHR, does exist and is called the prismatic VHTR reference design, MacDonald et al [2003], General Atomics [1996]. The present validation studies are based on the prismatic VHTR reference design. In the prismatic VHTR reference design, the flow in the lower plenum will be introduced by dozens of turbulent jets issuing into a large crossflow that must negotiate dozens of cylindrical support columns as it flows toward the exit duct of the reactor vessel. The jets will not all be at the same temperature due to the radial variation of power density expected in the core. However, it is important that the coolant be well mixed when it enters the power conversion unit to ensure proper operation and long life of the power conversion machinery. Hence, it is deemed important to be able to accurately model the flow and mixing of the variable temperature coolant in the lower plenum and exit duct. Accurate flow modeling involves determining modeling strategies including the fineness of the grid needed, iterative convergence tolerance, numerical discretization method used, whether the flow is steady or unsteady, and the turbulence model and wall treatment employed. It also involves validation of the computer code and turbulence model against a series of separate and combined flow phenomena and selection of the data used for the validation. The present report describes progress made to date for the task entitled CFD software validation of jets in crossflow which was designed to investigate the issues pertaining to the validation process.

Richard W. Johnson

2005-09-01T23:59:59.000Z

436

Expectations on Documented Safety Analysis for Deactivated Inactive Nuclear Facilities in a State of Long Term Surveillance & Maintenance or Decommissioning  

SciTech Connect (OSTI)

DOE promulgated 10 CFR 830 ''Nuclear Safety Management'' on October 10, 2000. Section 204 of the Rule requires that contractors at DOE hazard category 1, 2, and 3 nuclear facilities develop a ''Documented Safety Analysis'' (DSA) that summarizes the work to be performed, the associated hazards, and hazard controls necessary to protect workers, the public, and the environment. Table 2 of Appendix A to the rule has been provided to ensure that DSAs are prepared in accordance with one of the available predetermined ''safe harbor'' approaches. The table presents various acceptable safe harbor DSAs for different nuclear facility operations ranging from nuclear reactors to decommissioning activities. The safe harbor permitted for decommissioning of a nuclear facility encompasses methods described in DOE-STD-1 120-98, ''Integration of Environment, Safety and Health into Facility Disposition Activities,'' and provisions in 29 CFR 1910.120 or 29 CFR 1926.65 (HAZWOPER). Additionally, an evaluation of public safety impacts and development of necessary controls is required when the facility being decommissioned contains radiological inventory or contamination exceeding the Rule's definition for low-level residual fixed radioactivity. This document discusses a cost-effective DSA approach that is based on the concepts of DOE-STD-I 120 and meets the 10 CFR 830 safe harbor requirements for both transition surveillance and maintenance as well as decommissioning. This DSA approach provides continuity for inactive Hanford nuclear facilities that will eventually transition into decommissioning. It also uses a graded approach that meets the expectations of DOE-STD-3011 and addresses HAZWOPER requirements to provide a sound basis for worker protection, particularly where intrusive work is being conducted.

JACKSON, M.W.

2002-05-01T23:59:59.000Z

437

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

438

Expected dose for the nominal scenario class in the 2008 performance assessment for the proposed high-level radioactive waste repository at Yucca Mountain, Nevada  

Science Journals Connector (OSTI)

Abstract Extensive work has been carried out by the U.S. Department of Energy (DOE) in the development of a proposed geologic repository at Yucca Mountain (YM), Nevada, for the disposal of high-level radioactive waste. In support of this development and an associated license application to the U.S. Nuclear Regulatory Commission (NRC), the DOE completed an extensive performance assessment (PA) for the proposed YM repository in 2008. This presentation describes the determination of expected (mean) dose to the reasonably maximally exposed individual (RMEI) specified in the NRC regulations for the YM repository for the nominal scenario class (i.e., under nominal or undisturbed conditions) in the 2008YM PA. The following topics are addressed: (i) properties of the nominal scenario class and the determination of dose and expected (mean) dose to the RMEI, (ii) uncertainty in dose and resultant expected (mean) dose to the RMEI, (iii) expected (mean) dose to the RMEI from individual radionuclides, and (iv) numerical stability of the sampling-based procedure used to estimate the expected (mean) dose to the RMEI. The present paper is part of a special issue of Reliability Engineering and System Safety devoted to the 2008YM PA; additional papers in the issue describe other aspects of the 2008YM PA.

J.C. Helton; C.W. Hansen; C.J. Sallaberry

2014-01-01T23:59:59.000Z

439

Relativistic many-body calculation of energies, oscillator strengths, transition rates, lifetimes, polarizabilities, and quadrupole moment of a Fr-like Thiv ion  

Science Journals Connector (OSTI)

Atomic properties of the 24 low-lying ns, npj, ndj, nfj, and ngj states in Thiv ion are calculated using the high-precision relativistic all-order method where all single, double, and partial triple excitations of the Dirac-Fock wave functions are included to all orders of perturbation theory. Recommended values are provided for a large number of electric-dipole matrix elements, oscillator strengths, transition rates, and lifetimes. Scalar polarizabilities of the ground and six excited states (5fj, 6dj, 7pj, and 7s), and tensor polarizabilities of the 5fj, 6dj, and 7p3/2 states of Thiv are evaluated. The uncertainties of the recommended values are estimated. These calculations provide recommended values critically evaluated for their accuracy for a number of Thiv atomic properties for use in theoretical modeling as well as planning and analysis of various experiments including development of an ultraprecise nuclear clock and resonant excitation Stark ionization spectroscopy studies of actinide ions.

M. S. Safronova and U. I. Safronova

2013-06-20T23:59:59.000Z

440

Brookes and Smith: Transformation of [3'-Phase AuCd Alloys 269 Ordering forces would be expected to affect Ms from  

E-Print Network [OSTI]

Brookes and Smith: Transformation of [3'-Phase AuCd Alloys 269 Ordering forces would be expected. E. Brookes and R. W. Smith, Metal Sci. J., to be published. 8. M. S. Wechsler, Acta Met., 1957. Brookes and R. W. Smith, J. Sci. Instruments, 1967,44, 75. 16. W. Lovick, Electronic Eng., 1962,34,332. 17

Cambridge, University of

Note: This page contains sample records for the topic "median expected lifetime" 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

Wind Energy EFA Wind energy has become a major source of clean energy. Wind energy is expected to grow over the next  

E-Print Network [OSTI]

Wind Energy EFA Wind energy has become a major source of clean energy. Wind energy is expected of wind energy fundamentals are needed to fill these jobs. The Wind Energy EFA prepares students for a career in wind energy, and allows for completing all requirements for the Certificate in Wind Energy

Kusiak, Andrew

442

Following [16], we form an initial estimate using an Expectation Maximization--Maximum Likelihood (EM--ML) algorithm. In general, the EM--ML estimate is ex  

E-Print Network [OSTI]

was mathematically generated by calculating the Radon transform by using 64 equiangular projections around 360 matter and a generalized internal structure. The outer region (grey matter) was completely. These regions crudely approximate the expected radioisotope density of a brain perfusion agent. Projection data

Duncan, James S.

443

APS/123QED Lifetime, turnovertime  

E-Print Network [OSTI]

a mechanism for the stretching of magnetic field lines. Furthermore, a cascade of energy down to small scales'. In the ideal case, where # = 0, magnetic field lines are tied exactly to the velocity field and stretching of velocity field lines corresponds to increased strength in the magnetic field. Indeed a central result

444

Methods for passivating silicon devices at low temperature to achieve low interface state density and low recombination velocity while preserving carrier lifetime  

DOE Patents [OSTI]

A new process has been developed to achieve a very low SiO.sub.x /Si interface state density D.sub.it, low recombination velocity S (<2 cm/s), and high effective carrier lifetime T.sub.eff (>5 ms) for oxides deposited on silicon substrates at low temperature. The technique involves direct plasma-enhanced chemical vapor deposition (PECVD), with appropriate growth conditions, followed by a photo-assisted rapid thermal annealing (RTA) process. Approximately 500-A-thick SiO.sub.x layers are deposited on Si by PECVD at 250.degree. C. with 0.02 W/cm.sup.-2 rf power, then covered with SiN or an evaporated thin aluminum layer, and subjected to a photo-assisted anneal in forming gas ambient at 350.degree. C., resulting in an interface state density D.sub.it in the range of about 1-4.times.10.sup.10 cm.sup.-2 eV.sup.-1, which sets a record for the lowest interface state density D.sub.it for PECVD oxides fabricated to date. Detailed analysis shows that the PECVD deposition conditions, photo-assisted anneal, forming gas ambient, and the presence of an aluminum layer on top of the oxides during the anneal, all contributed to this low value of interface state density D.sub.it. Detailed metal-oxide semiconductor analysis and model calculations show that such a low recombination velocity S is the result of moderately high positive oxide charge (5.times.10.sup.11 -1.times.10.sup.12 cm.sup.-2) and relatively low midgap interface state density (1.times.10.sup.10 -4.times.10.sup.10 cm.sup.-2 eV.sup.-1). Photo-assisted anneal was found to be superior to furnace annealing, and a forming gas ambient was better than a nitrogen ambient for achieving a very low surface recombination velocity S.

Chen, Zhizhang (Duluth, GA); Rohatgi, Ajeet (Marietta, GA)

1995-01-01T23:59:59.000Z

445

Global Lifetime Measurements of Highly-Deformed and Other Rotational Structures in the A~135 Light Rare-Earth Region: Probing the Single-Particle Motion in a Rotating Potential  

E-Print Network [OSTI]

It has been possible, using GAMMASPHERE plus Microball,to extract differential lifetime measurements free from common systematic errors for over 15 different nuclei (various isotopes of Ce, Pr, Nd, Pm, and Sm) at high spin within a single experiment. This comprehensive study establishes the effective single-particle quadrupole moments in the A~135 light rare-earth region. Detailed comparisons are made with calculations using the self-consistent cranked mean-field theory.

M. A. Riley; R. W. Laird; F. G. Kondev; D. J. Hartley; D. E. Archer; T. B. Brown; R. M. Clark; M. D evlin; P. Fallon; I. M. Hibbert; D. T. Joss; D. R. LaFosse; P. J. Nolan; N. J. O'Brien; E. S. Paul; J. Pfohl; D. G. Sarantites; R. K. Sheline; S. L. Shepherd; J. Simpson; R. Wadsworth; M. T. Matev; A. V. Afanasjev; J. Dobaczewski; G. A. Lalazissis; W. Nazarewicz; W. Satula

2001-05-15T23:59:59.000Z

446

Exceeding Energy Consumption Design Expectations  

E-Print Network [OSTI]

optimisation and thin client. An appraisal of these is also given, along with the performance of the photovoltaic panels and rainwater harvesting in place from the outset....

Castleton, H. F.; Beck, S. B. M.; Hathwat, E. A.; Murphy, E.

2013-01-01T23:59:59.000Z

447

Intention is commitment with expectation  

E-Print Network [OSTI]

of the rational balance between agents?? action and deliberation, and suggests the use of meansends reasoning in agent implementations. A rule-based reasoner in Jess facilitates evaluation of the predictiveness and intuitiveness of the theory, and provides a...

Creel, James Silas

2005-08-29T23:59:59.000Z

448

College's shared savings exceed expectations  

SciTech Connect (OSTI)

A shared-savings contract at a Massachusetts community college with all-electric facilities may reduce electricity consumption as much as 50% instead of the estimated 39%. Maintenance and repair of existing timeclocks, relays, and pneumatic controls for building equipment and a lighting retrofit in the swimming pool area are equipment and a lighting retrofit in the swimming pool area are responsible for the savings. The college was one of four state-owned institutions to participate in a pilot shared-savings program, under which the college will receive 20% of the savings until the Hospital Efficiency Corp. recovers 123% of its costs. At that point, the college will receive all the savings.

Springer, N.

1985-12-02T23:59:59.000Z

449

Smart Wire Grid: Resisting Expectations  

ScienceCinema (OSTI)

Smart Wire Grid's DSR technology (Discrete Series Reactor) can be quickly deployed on electrical transmission lines to create intelligent mesh networks capable of quickly rerouting electricity to get power where and when it's needed the most. With their recent ARPA-E funding, Smart Wire Grid has been able to move from prototype and field testing to building out a US manufacturing operation in just under a year.

Ramsay, Stewart; Lowe, DeJim

2014-04-09T23:59:59.000Z

450

Smart Wire Grid: Resisting Expectations  

SciTech Connect (OSTI)

Smart Wire Grid's DSR technology (Discrete Series Reactor) can be quickly deployed on electrical transmission lines to create intelligent mesh networks capable of quickly rerouting electricity to get power where and when it's needed the most. With their recent ARPA-E funding, Smart Wire Grid has been able to move from prototype and field testing to building out a US manufacturing operation in just under a year.

Ramsay, Stewart; Lowe, DeJim

2014-03-03T23:59:59.000Z

451

Induction of labour versus expectant management for nulliparous women over 35 years of age: a multi-centre prospective, randomised controlled trial  

E-Print Network [OSTI]

.walker@nuh.nhs.ukExpectant management i.e. awaiting spontaneous onse35 years of age: a multi-centre prospective, randomised controlled trial Kate F Walker1*, George Bugg1, Marion Macpherson1, Carol McCormick1, Chris Wildsmith2, Gordon Smith3 and Jim Thornton4 Abstract Background... admission required first fetal pH obtained Birth trauma Subdural haematoma Intracerebral or intraventricular haemorrhage Spinal-cord injury Basal skull fracture Peripheral-nerve injury present at discharge from hospitalLong bone fracture Seizures...

Walker, Kate F; Bugg, George; Macpherson, Marion; McCormick, Carol; Wildsmith, Chris; Smith, Gordon; Thornton, Jim

2012-12-11T23:59:59.000Z

452

Calculation of the expectation values of the spin and the magnetic moment of the gamma photons created as a result of the electron-positron annihilation  

E-Print Network [OSTI]

We have calculated the expectation values of the spin and the intrinsic magnetic moment of the gamma photons created as a result of the electron-positron annihilation. We show that, depending on its helicity a gamma photon propagating in z direction with an angular frequency carries a magnetic moment of along the propagation direction. Here the (+) and (-) signs stand for the right hand and left circular helicity respectively. We also show that whatever the helicity is, the spin of each gamma photon is equal to zero (but not !). We argue that in a Stern-Gerlach experiment (SGE) the magnetic moment is an important property but not the spin of the particles. Because of these two symmetric values of the magnetic moment, we expect a splitting of the gamma photon beam into two symmetric subbeams in a (SGE). We believe that the present result will be helpful for understanding the recent attempts on the (SGE) with slow light and the behavior of the dark polaritons and also the atomic spinor polaritons.

Mesude Saglam; Ziya Saglam

2012-01-20T23:59:59.000Z

453

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

454

The effect of political cycles on power investment decisions: Expectations over the repeal and reinstatement of carbon policy mechanisms in Australia  

Science Journals Connector (OSTI)

Abstract Political uncertainty over global greenhouse gas (GHG) mitigation policy is likely to defer investment in cleaner technologies. It may also incentivise short-lived, high-cost interim investments while businesses wait for the uncertainty to subside. The range of possible policy responses to the issue has created uncertainty over the future of national mitigation pathways. Given that the electricity sector, globally, is a major emitter of GHGs, this represents a systematic risk to investment in electricity generation assets. This paper uses a real options analysis framework informed by a survey of experts conducted in Australia used as a proxy to model the degree of the uncertainty to investigate the optimal timing for investment in the conversion of a coal plant to a combined cycle gas turbine plant using the American-style option valuation method. The effect of market and political uncertainty is studied for the Clean Energy Act 2011 in Australia. Political uncertainty is addressed bi-modally in terms of: (1) uncertainty over the repeal of the carbon pricing policy, and (2) if it is repealed, uncertainty over the reinstatement of the policy, to represent the effect of electoral cycles and the possibility of more stringent future global mitigation efforts. Results of the analysis show that although political uncertainty with respect to GHG mitigation policy may delay investment in the conversion of the coal plant, expectations over the reinstatement of the carbon pricing reduces the amount of option premium to defer the conversion decision.

Mahdi ShahNazari; Adam McHugh; Bryan Maybee; Jonathan Whale

2014-01-01T23:59:59.000Z

455

Potential and prospective implementation of carbon nanotubes on next generation aircraft and space vehicles: A review of current and expected applications in aerospace sciences  

Science Journals Connector (OSTI)

Abstract Carbon nanotubes have instigated the interest of many different scientific fields since their authenticated introduction, more than two decades ago. Particularly in aerospace applications, the potential implementations of these advanced materials have been predicted to have a large impact on future aircraft and space vehicles, mainly due to their distinct features, which include superior mechanical, thermal and electrical properties. This article provides the very first consolidated review of the imminent prospects of utilizing carbon nanotubes and nanoparticles in aerospace sciences, based on their recent implementations and predicted future applications. Explicitly, expected carbon nanotube employment in aeronautics and astronautics are identified for commercial aircraft, military aircraft, rotorcraft, unmanned aerial vehicles, satellites, and space launch vehicles. Attention is devoted to future utilization of carbon nanotubes, which may comprise hydrogen storage encapsulation, composite material implementation, lightning protection for aircraft, aircraft icing mitigation, reduced weight of airframes/satellites, and alleviation of challenges related to future space launch. This study further sheds light onto recent actualized implementations of carbon nanotubes in aerospace applications, as well as current and prospective challenges related to their usage in aerospace sciences, encompassing health and safety hazards, large scale manufacturing, achievement of optimum properties, recycling, and environmental impacts.

Omid Gohardani; Maialen Chapartegui Elola; Cristina Elizetxea

2014-01-01T23:59:59.000Z

456

Expected dose and associated uncertainty and sensitivity analysis results for all scenario classes in the 2008 performance assessment for the proposed high-level radioactive waste repository at Yucca Mountain, Nevada  

Science Journals Connector (OSTI)

Abstract Extensive work has been carried out by the U.S. Department of Energy (DOE) in the development of a proposed geologic repository at Yucca Mountain (YM), Nevada, for the disposal of high-level radioactive waste. In support of this development and an associated license application to the U.S. Nuclear Regulatory Commission (NRC), the DOE completed an extensive performance assessment (PA) for the proposed YM repository in 2008. The conceptual structure and organization of the 2008 YM PA is based on decomposing the analysis into the following scenario classes: nominal, early waste package failure, early drip shield failure, igneous intrusive, igneous eruptive, seismic ground motion, and seismic fault displacement. This presentation describes how results obtained for the individual scenario classes are brought together in the determination of expected dose to the reasonably maximally exposed individual (RMEI) specified by the NRC in the regulatory requirements for the YM repository and presents associated uncertainty and sensitivity analysis results. The following topics are addressed: (i) determination of expected dose to the RMEI from all scenario classes, (ii) expected dose and uncertainty in expected dose to the RMEI for 0 to 20,000yr, (iii) expected dose and uncertainty in expected dose to the RMEI from for 0 to 106yr, (iv) justification for the decomposition procedure used to estimate expected dose to the RMEI from all scenario classes, and (v) effectiveness of individual barrier systems in reducing releases from the repository and thus dose to the RMEI. The present article is part of a special issue of Reliability Engineering and System Safety devoted to the 2008 YM PA; additional articles in the issue describe other aspects of the 2008 YM PA.

J.C. Helton; C.W. Hansen; C.J. Sallaberry

2014-01-01T23:59:59.000Z

457

Expected dose and associated uncertainty and sensitivity analysis results for the human intrusion scenario in the 2008 performance assessment for the proposed high-level radioactive waste repository at Yucca Mountain, Nevada  

Science Journals Connector (OSTI)

Abstract Extensive work has been carried out by the U.S. Department of Energy (DOE) in the development of a proposed geologic repository at Yucca Mountain (YM), Nevada, for the disposal of high-level radioactive waste. In support of this development and an associated license application to the U.S. Nuclear Regulatory Commission (NRC), the DOE completed an extensive performance assessment (PA) for the proposed YM repository in 2008. This presentation describes the determination of expected (mean) dose to the reasonably maximally exposed individual (RMEI) specified in the NRC regulations for the YM repository resulting from an inadvertent drilling intrusion into the repository. The following topics are addressed: (i) assumed properties of an inadvertent drilling intrusion and the determination of the associated dose and expected (mean) dose to the RMEI, (ii) uncertainty and sensitivity analysis results for expected dose to the RMEI, and (iii) the numerical stability of the sampling-based procedure used to estimate expected (mean) dose to the RMEI. The present article is part of a special issue of Reliability Engineering and System Safety devoted to the 2008 YM PA; additional articles in the issue describe other aspects of the 2008 YM PA.

C.W. Hansen; G.A. Behie; K.M. Brooks; Y. Chen; J.C. Helton; S.P. Hommel; K.P. Lee; B. Lester; P.D. Mattie; S. Mehta; S.P. Miller; C.J. Sallaberry; S.D. Sevougian

2014-01-01T23:59:59.000Z

458

"The number of seniors with dementia in Saskatchewan is expected to nearly double in the next 30 years--from 17,000 now to 29,000 in 2038,"says Debra Morgan, Chair of Rural Health Delivery at the  

E-Print Network [OSTI]

THE ISSUE "The number of seniors with dementia in Saskatchewan is expected to nearly double ANG AMAKING AMAKING A Saskatchewan Health ResearchWith Impact The Rural and Remote Memory Clinic Debra providers and with in-kind support from Telehealth Saskatchewan, we designedtheRuralandRemoteMemory Clinic

Saskatchewan, University of

459

3/26/13 Section of brain does more than expected, Universityof Chicago scientists find -chicagotribune.com www.chicagotribune.com/health/ct-x-monkeys-processing-visual-information-0320-20130320,0,298755.story 1/3  

E-Print Network [OSTI]

- chicagotribune.com www.chicagotribune.com/health/ct-x-monkeys-processing-visual-information-0320 of brain does more than expected, Universityof Chicago scientists find - chicagotribune.com www.chicagotribune.com/health/ct-x-monkeys-processing and troubleshooting HOME PROTECTION PLANS From foundation to fixtures FESTIVAL OF HOMES Five financial things every

Freedman, David J.

460

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

Note: This page contains sample records for the topic "median expected lifetime" 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

'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...

462

Lifetimes and time scales in atmospheric chemistry  

Science Journals Connector (OSTI)

...such as for years with extensive forest fires. Moving beyond atmospheric chemistry, extension of this approach to Earth system models could yield surprises. The coupling across different components of the chemistry-climate system, such as atmospheric...

2007-01-01T23:59:59.000Z

463

A Lifetime of Work Gone to Waste?  

Science Journals Connector (OSTI)

...Congress chose Yucca Mountain in 1987 over alternatives...nuclear waste at Yucca Mountain is not an option...request for 2010 cuts funding for the repository...nuclear-waste disposal. The last word on Yucca Mountain probably hasn't...

Dan Charles

2009-03-20T23:59:59.000Z

464

A hybrid VNS?path relinking for the p-hub median problem  

Science Journals Connector (OSTI)

......moves in allocation while improvements exist. If the solution obtained with this procedure improves the best solution, we pro- ceed again to traverse the sets of the partition following the former scheme. Otherwise the procedure finishes. 5. PR principles......

Melquades Prez Prez; Francisco Almeida Rodrguez; J. Marcos Moreno-Vega

2007-04-01T23:59:59.000Z

465

Reliable p-median facility location problem: two-stage robust models ...  

E-Print Network [OSTI]

plane method in the two-stage facility location problem and power system scheduling ... (ii) Because of the modeling advantages of two-stage RO, we consider real ...... Robust Unit Commitment Problem with Demand Response and Wind.

2012-12-18T23:59:59.000Z

466

Radiofrequency Ablation of Large Renal Angiomyolipoma: Median-Term Follow-Up  

SciTech Connect (OSTI)

Purpose. To study the feasibility of percutaneous radiofrequency ablation (RFA) of large angiomyolipomas (AMLs) using saline-cooled electrodes. Materials and Methods. Institutional Review Board approval for the study was received. Four patients (all female, age range 33-67 years) with large AMLs (maximal axis 6.1-32.4 cm) not suitable for embolotherapy or surgery consented to a trial of RFA. Procedures were performed under computerized tomographic guidance using 14G saline-infused electrodes. Two ablations (diameter 4-7 cm) were undertaken in each patient. Variables studied were technical success, treatment safety, alteration of tumor consistency, tumor size, effect on renal function, and medium-term freedom from haemorrhage. Results. All four patients underwent successful RFA without any intraprocedural complications. There has been no haemorrhage, or new renal specific symptom, during a minimum 48-month period, and normal renal function has been normal. On follow-up radiological imaging, the tumors have become fattier with involution of the soft-tissue elements (soft tissue-to-total tumor ratio decreased mean [range] of 0.26 [0.14-0.48] to 0.17 [0.04-0.34] U; p = 0.04 [paired Student t test]). Further evidence of treatment effect was the development of a capsule around the ablation zone, but there was no change in overall tumor volume (mean [range] 1,120 [118-2,845] to 1150 [90-3,013] ml; p = 1 [paired Student t test]). Conclusion. RFA of large AMLs is technically feasible using saline-infused electrodes. The soft-tissue elements decreased in volume; the tumors become fattier; and there has been no renal haemorrhage during a 48-month period.

Gregory, S. M., E-mail: drstephengregory@gmail.com; Anderson, C. J.; Patel, U. [St. George's Hospital and Medical School, Department of Radiology (United Kingdom)

2013-06-15T23:59:59.000Z

467

MULTIPLE COMPARISON OF MEDIANS USING PERMUTATION TESTS Scott J. Richter, University of North Carolina at Greensboro  

E-Print Network [OSTI]

.041 0.054 0.040 0.019 MOODR 0.013 0.018 0.017 0.019 0.007 MOODUR 0.009 0.013 0.011 0.013 0.003 TUKEY 0.024 TUKEY 0.046 0.053 0.040 0.043 0.013 Table 3. FWE ­ 0.05 = , three groups, 1 2 34, 5, 6n n n.025 MOODUR 0.027 0.019 0.015 0.024 0.025 TUKEY 0.001 0.005 0.002 0.004 0.003 1 #12;Table 4. FWE ­ 0

Richter, Scott J.

468

K-median clustering, model-based compressive sensing, and sparse recovery for earth mover distance  

E-Print Network [OSTI]

We initiate the study of sparse recovery problems under the Earth-Mover Distance (EMD). Specifically, we design a distribution over m x n matrices A such that for any x, given Ax, we can recover a k-sparse approximation ...

Indyk, Piotr

469

Race, median household income, and primary Grade IV glioma treatment patterns  

Science Journals Connector (OSTI)

...behaviors among a population of Hispanic origin. Daisy Gonzalez 1...population subgroups, including Hispanics. Objective: This study assessed...population-based sample of Hispanic women in PR. Methods: This...complex sampling design of households in the San Juan Metropolitan...

Jill S. Barnholtz-Sloan; Vonetta L. Williams; Marc Chamberlain; and Andrew E. Sloan

2006-04-15T23:59:59.000Z

470

E-Print Network 3.0 - artery median nerve Sample Search Results  

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

- Department of Biology, New Mexico State University Collection: Biology and Medicine 2 Near-infrared signals associated with electrical stimulation of peripheral nerves Summary:...

471

A GRASP with path-relinking for the p-median problem ?  

E-Print Network [OSTI]

Sep 18, 2002 ... Class ORLIB (short for OR-Library) was introduced by Beasley in [2]. Each of the 40 instances ...... Sun Ultra I (143 MHz UltraSparc). VNS.

2002-09-18T23:59:59.000Z

472

A Comparison of Maximum Likelihood and Median Rank Regression for Weibull Estimation  

E-Print Network [OSTI]

Abstract The Weibull distribution is frequently used in reliability applications. Many different methods Words: Censored data, Least squares, ML, MRR, Reliability 1 #12;1 1 Introduction 1.1 Motivation and purpose The Weibull distribution, described in Section 2, is perhaps the most widely used distribution

473

Distillate Stocks Expected to Remain Low  

Gasoline and Diesel Fuel Update (EIA)

5 5 Notes: When EIA's demand forecast is combined with its outlook for production and net imports, distillate stocks are projected to remain low for the rest of the year. - Stocks are beginning at very low levels. The September 1 distillate fuel stock level (112 million barrels) is nearly 20% less than last year, and about 15% below the 10 year average for end of August levels. - But stocks on the East Coast, at 39.8 million barrels, are 39% behind year-ago levels, and about a similar percentage below end-of-August 10-year average levels. Over the last 10 years, the average stock build from the end of August through the end of November has been about 10 million barrels. We are forecasting about a 12 million barrel build, which does not reach the normal band. Forecast stocks peak at the end of November at 127 million

474

EXPECTED LEARNING OUTCOMES PUBLIC POLICY MPPProgram Purpose  

E-Print Network [OSTI]

-FOCUSED ANALYSIS IN A REAL-WORLD, PROFESSIONAL ENVIRONMENT. THEY WILL BE ABLE TO: The Master of Public Policy (MPP in quantitative and statistical analysis, political processes, institutions and ethics, and economic principles the political realities associated implementing, and evaluating policy. a. Perform statistical analysis

Olsen Jr., Dan R.

475

Public Stakeholders: What We Know and Expect  

Science Journals Connector (OSTI)

The Yucca Mountain controversy is interpretable through the psychometric paradigm...1990...) asked 1,001 residents of Nevada if they would be willing to accept the permanent nuclear waste repository, which was lo...

Michael R. Greenberg

2013-01-01T23:59:59.000Z

476

Waste Panel Expected to Back Interim Storage  

Science Journals Connector (OSTI)

...a nuclear waste repository at Yucca Mountain, Nevada, last year, President...Then it would be shipped to Yucca Mountain, transferred into steel cylinders...licensed. One reason was that Yucca Mountain had to cool waste before permanently...

Eli Kintisch

2011-07-08T23:59:59.000Z

477

Introduction of Afternoon Topics and Expectations  

Broader source: Energy.gov [DOE]

Appreciation and overview remarks by DOE Integrated Safety Management Co-champions Patricia R. Worthington, HSS Director, Office of Health and Safety, HS-10 and Ray J. Corey, Assistant Manager for Safety and Environment, DOE Richland Operations Office.

478

Resetting global expectations from agricultural biofuels  

Science Journals Connector (OSTI)

The developing country comparison bars in figure 3 on page 6 of the original article have been revised as shown in the PDF.

Matt Johnston; Jonathan A Foley; Tracey Holloway; Chris Kucharik; Chad Monfreda

2009-01-01T23:59:59.000Z

479

Resetting global expectations from agricultural biofuels  

Science Journals Connector (OSTI)

Aggressive renewable energy policies have helped the biofuels industry grow at a rate few could have predicted. However, while discourse on the energy balance and environmental impacts of agricultural biofuel feedstocks are common, the potential they hold for additional production has received considerably less attention. Here we present a new biofuel yield analysis based on the best available global agricultural census data. These new data give us the first opportunity to consider geographically-specific patterns of biofuel feedstock production in different regions, across global, continental, national and sub-national scales. Compared to earlier biofuel yield tables, our global results show overestimates of biofuel yields by ~100% or more for many crops. To encourage the use of regionally-specific data for future biofuel studies, we calculated complete results for 20 feedstock crops for 238 countries, states, territories and protectorates.

Matt Johnston; Jonathan A Foley; Tracey Holloway; Chris Kucharik; Chad Monfreda

2009-01-01T23:59:59.000Z

480

Baltimorethan you expect. f Baltimore's many nicknames,  

E-Print Network [OSTI]

performing at JHU's Chinese New Year celebration; Honfest; painted window screen of Patterson Park. I think that's why Baltimore is such a good place to live." -- John Waters, baltimore film director imitation of stone that covers brick roW homes throughout baltimore, as "the polyester of brick." #12;film

Niebur, Ernst

Note: This page contains sample records for the topic "median expected lifetime" 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

Expectations for a New Climate Agreement  

E-Print Network [OSTI]

With the objective of stimulating timely and open discussion of the current attempt to formulate a new climate agreementto be reached at the 21st meeting of the Conference of Parties (COP-21) in Paris during November of ...

Jacoby, H.D.

482

Lowell, Massachusetts, Restaurant Exceeds Energy Savings Expectations...  

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

in a loan from the local lending consortium, the restaurant installed a new boiler, air conditioning and heating system, lighting fixtures, and an efficient refrigerator...

483

Expectations for Baryon and Lepton Nonconservation  

Science Journals Connector (OSTI)

Are baryon and lepton conservation actually violated in nature? At this moment, we do not know. Nevertheless, it seems a good idea to try to anticipate the details of baryon or lepton nonconserving processes, ...

Steven Weinberg

1980-01-01T23:59:59.000Z

484

Culture and Social Media: Changing Service Expectations  

Science Journals Connector (OSTI)

Moderating effects of culture. Srite and Karahannas (2006) study tested a model in which Hofstedes four main cultural dimensions moderated the relationships between PU and PEOU. The result of the s...

Sanjukta Pookulangara Ph.D.

2012-01-01T23:59:59.000Z

485

Academic Expectations Presentation Transfer Orientation 2010  

E-Print Network [OSTI]

Theater Music East Asian Languages & Cultures Health Policy & Management Art History Cinema TheaterYear Individual Appointments with departmental advisor OnlineTools and Resources Long-Term Planning Minors Requirements Registration and Advisement Programs and Resources #12;Transition to USC and Viterbi Explore

Wang, Hai

486

Lowell, Massachusetts, Restaurant Exceeds Energy Savings Expectations  

Broader source: Energy.gov [DOE]

The Athenian Corner, a Greek restaurant owned by the Panagiotopoulos family, has been a familiar sight in the historic district of downtown Lowell, Massachusetts, since 1974. Energy efficiency upgrades are helping the Panagiotopoulos family reduce operating costs and make their restaurant more successful. The Athenian Corner completed a building energy assessment through BetterBuildings Lowell that projected 30% energy savings if the recommended upgrades were installed. After securing $47,500 through a BetterBuildings Lowell grant and $27,500 in a loan from the local lending consortium, the restaurant installed a new boiler, air conditioning and heating system, lighting fixtures, and an efficient refrigerator storage cabinet.

487

Expectancy formation in philanthropic corporate advertising  

E-Print Network [OSTI]

This study examined whether the effectiveness of philanthropic corporate advertisements can be accounted for by attribution theory and by dual-mode information-processing models of persuasion. The experiment manipulated the prosocial congruency...

Pool, Gregory James

2012-06-07T23:59:59.000Z

488

Baltimorethan you expect. f Baltimore's many nicknames,  

E-Print Network [OSTI]

and parks." · "The Sunday farmers market downtown." · "Lighting the Washington Monument at Christmas

Niebur, Ernst

489

The Exact Theoretical Rational Expectations Monetary Aggregate  

E-Print Network [OSTI]

t. Hence (at,xt,At) can be chosen deterministically in a manner that assures that (at,xt,At) ? S(t) with certainty. However, that is not possible for s > t, since at the beginning of time period t, when the intertemporal decision is solved..., ..., as, ...,at+T; xt, ..., xs, ...,xt+T; At+T), where U is assumed to be intertemporally additively (strongly) separable, such that U = u( at, xt) + ( 11+? )u(at+1,xt+1) + ... ..... + ( 11+? )T-1 u(at+T-1,xt+T-1) + ( 1 1+? )T u(at+T,xt+T,At+T) = ? s=t t...

Barnett, William A.; Hinich, Melvin J.; Yue, Piyu

2000-06-01T23:59:59.000Z

490

Expected Termination Time in BPA Games  

Science Journals Connector (OSTI)

We consider the problem of computing the value and finding the epsilon-optimal strategies for concurrent Basic Process Algebra games, which is a subclass of two-player infinite-state stochastic games with impe...

Dominik Wojtczak

2013-01-01T23:59:59.000Z

491

Clare M. Wilkinson-Weber TAILORING EXPECTATIONS  

E-Print Network [OSTI]

liberalisation in India (Mazzarella, 2003, p. 5; Virdi, 2003, p. 201). My approach to consumption proceeds

492

Driver expectancy in locating automotive controls  

E-Print Network [OSTI]

to determine if any of these factors had any effect on the distributions of control locations. In the final phase of the study McGrath measured response time and errors in locating controls in two cars, one was a 1973 Toyota and the other a 1973 Buick..., Chrysler, and Dodge. Also included were the following far eastern car makes: Toyota, Honda, Mazda, Hyundai, Isuzu, Nissan, and Geo. The automobiles were divided into six groups: 14 1. Foreign-make, small, mid-size, and sports cars. 2. Foreign...

Francis, Dawn Suzette

1990-01-01T23:59:59.000Z

493

Candidate preferences and expectations of election outcomes  

Science Journals Connector (OSTI)

...were more often female (57%), non-Hispanic white (89%), middle aged (41% ages...of whom 61% were female, 86% non-Hispanic white, 40% middle aged (ages 5064), and 43% college...2009 ) Subjective probabilities in household surveys . Annu Rev Econom 1 : 543...

Adeline Delavande; Charles F. Manski

2012-01-01T23:59:59.000Z

494

Top quark physics expectations at the LHC  

E-Print Network [OSTI]

The top quark will be produced copiously at the LHC. This will make both detailed physics studies and the use of top quark decays for detector calibration possible. This talk reviews plans and prospects for top physics activities in the ATLAS and CMS experiments.

Andrei Gaponenko; for the ATLAS Collaboration; for the CMS Collaboration

2008-10-22T23:59:59.000Z

495

Constraining scenarios of the soft/hard transition for the pion electromagnetic form factor with expected data of 12-GeV Jefferson Lab experiments and of the Electron-Ion Collider  

E-Print Network [OSTI]

It has been shown previously [PRD 88 (2013) 093005, arXiv:1310.1770] that a non-perturbative relativistic constituent-quark model for the $\\pi$-meson electromagnetic form factor allows for a quantitative description of the soft/hard transition, resulting in the correct Quantum-Chromodynamical asymptotics, including normalization, from the low-energy data without further parameter tuning. This happens universally whenever the constituent-quark mass is switched off. The energy range where the transition happens is therefore determined by the quark-mass running at intermediate energies and is not tightly constrained theoretically. Here we consider possible ways to pin down this energy range with coming experimental data. We demonstrate that expected experimental uncertainties of the 12-GeV Jefferson-Lab data are larger than the span of predictions of the model, so these data might be used for testing the model but not for determination of the soft/hard transition scale. Contrary, the projected Electron-Ion Colli...

Troitsky, S V

2015-01-01T23:59:59.000Z

496

The sensitivity of the statistical procedures utilizing the Hartley-Sielken models to do low dose cancer risk assessment  

E-Print Network [OSTI]

(d) for a grid of t and d values. ) The distribution of T2 was taken to be exponential with p(T & t) = 1 -e 2 and either 3. 5 which implies a median time from onset to cancer caused death of . 2 (that is, 1/5 of a lifetime), or 1. 4 2 which implies... a median of . 5 (that is, 1/2 of a lifetime). These two values correspond respectively to "short" and "moderately long" median times from cancer onset to cancer caused death. (Table A. 3 indicates the percentiles of both distributions for T2...

Sabbagh, Mayna

1982-01-01T23:59:59.000Z

497

The Effect of Removal of Fixed Percentages of the Newborn on Size ...  

Science Journals Connector (OSTI)

divided into four arbitrary and subjective size categories ..... indicate> by X at the point A = 1, 1. The total range .... No computation of median lift expectancy was.

498

Q1, gender 1 = male, 2 = female. (1 occurence of "Not answered" (0) changed to median value 1).  

E-Print Network [OSTI]

, average time per week used on AoC 1 = less than 1 hour, 2 = 1-3 hours, 3 = 3-5 hours, 4 = 5-7 hours, 5 = more than 7 hours Q4, "Compared with an average student in the course I used ... on AoC" 1 = much less would definitely benefit from using a system like AoC" followed Likert scale where 1 = strongly disagree

Natvig, Lasse

499

Blue whale earplug reveals lifetime contaminant exposure and hormone profiles  

Science Journals Connector (OSTI)

...plug of the Mysticeti as an indication of age with special reference to the North Atlantic fin whale (Balaenoptera physalus) Norsk Hvalfangst-Tidende 45 : 413 425 . 29 Branch TA Mikhalev YA ( 2008 ) Regional differences in length at sexual maturity for...

Stephen J. Trumble; Eleanor M. Robinson; Michelle Berman-Kowalewski; Charles W. Potter; Sascha Usenko

2013-01-01T23:59:59.000Z

500

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