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Note: This page contains sample records for the topic "tem energy losses" from the National Library of EnergyBeta (NLEBeta).
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they are not comprehensive nor are they the most current set.
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1

Reducing Energy Loss  

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

Students will learn about the Law of Conservation of Energy. They will also compare and contrast Energy Guide Labels to study energy efficiency and conservation as well.

2

Time-resolved acquisition technique for elemental mapping by energy-filtering TEM  

Science Journals Connector (OSTI)

......were added to form a new processed image in each energy region. Then, Ba element...F (1986) Electron Energy-Loss Spectroscopy...Microscope. (Plenum Press, New York...18 Reimer L (1995) Energy-Filtering Transmission......

S Terada; T Aoyama; F Yano; Y Mitsui

2001-03-01T23:59:59.000Z

3

World offshore energy loss statistics  

Science Journals Connector (OSTI)

Offshore operations present a unique set of environmental conditions and adverse exposure not observed in a land environment taking place in a confined space in a hostile environment under the constant danger of catastrophe and loss. It is possible to engineer some risks to a very low threshold of probability, but losses and unforeseen events can never be entirely eliminated because of cost considerations, the human factor, and environmental uncertainty. Risk events occur infrequently but have the potential of generating large losses, as evident by the 2005 hurricane season in the Gulf of Mexico, which was the most destructive and costliest natural disaster in the history of offshore production. The purpose of this paper is to provide a statistical assessment of energy losses in offshore basins using the Willis Energy Loss database. A description of the loss categories and causes of property damage are provided, followed by a statistical assessment of damage and loss broken out by region, cause, and loss category for the time horizon 1970–2004. The impact of the 2004–2005 hurricane season in the Gulf of Mexico is summarized.

Mark J. Kaiser

2007-01-01T23:59:59.000Z

4

Energy Loss by Breaking waves  

Science Journals Connector (OSTI)

Observations of the frequency of wind wave breaking in deep water are combined with laboratory estimates of the rate of energy loss a from single breaking wave to infer the net rate of energy transfer to the mixed layer from breaking waves, as a ...

S. A. Thorpe

1993-11-01T23:59:59.000Z

5

Exergy Loss: A Basis for Energy Taxing  

Science Journals Connector (OSTI)

The paper introduces exergy loss or entropy added as a basis for energy taxing. Exergy loss will be shown to account objectively...

Gerard Hirs

1993-01-01T23:59:59.000Z

6

Chemical shift mapping of Si L and K edges using spatially resolved EELS and energy?filtering TEM  

Science Journals Connector (OSTI)

......F (1986) Electron Energy-Loss Spectroscopy...Microscope. (Plenum Press, New York). 2 Knvanek O L...science using electron energy loss measurements...Microdiffraaion. (Plenum Press, New York). 11 Reimer L (1995) Energy-Filtering Transmission......

Koji Kimoto; Tomoko Sekiguchi; Takashi Aoyama

1997-01-01T23:59:59.000Z

7

Spectral restoration and energy resolution improvement of electron energy-loss spectra by Pixon reconstruction: I. Principle and test examples  

Science Journals Connector (OSTI)

......spectrometer and energy filter for use in combination with 200 kV monochromated (S)TEMs. Ultramicroscopy 96: 367-384. 2 Overwijk M H F and Reefman D. (2000) Maximum-entropy deconvolution applied to electron energy-loss spectroscopy. Micron 31......

Shunsuke Muto; Richard C. Puetter; Kazuyoshi Tatsumi

2006-08-01T23:59:59.000Z

8

Minimizing Energy Losses in Ducts | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Minimizing Energy Losses in Ducts Minimizing Energy Losses in Ducts Minimizing Energy Losses in Ducts June 24, 2012 - 5:45pm Addthis Placing ductwork in conditioned space can help reduce energy losses. | Photo courtesy of ©iStockphoto/SimplyCreativePhotography Placing ductwork in conditioned space can help reduce energy losses. | Photo courtesy of ©iStockphoto/SimplyCreativePhotography In new home construction or in retrofits, proper duct system design is critical. In recent years, energy-saving designs have sought to include ducts and heating systems in the conditioned space. Many existing duct systems lose a lot of energy from leakage and poor insulation, but you can reduce that loss by sealing and insulating your ducts. Existing ducts may also be blocked or may require simple upgrades.

9

Energy Use Loss and Opportunities Analysis: U.S. Manufacturing...  

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

Energy Use Loss and Opportunities Analysis: U.S. Manufacturing & Mining Energy Use Loss and Opportunities Analysis: U.S. Manufacturing & Mining energyuselossopportunitiesanalys...

10

Electron energy loss spectroscopy of disilane  

SciTech Connect

Electron energy loss spectra of disilane have been recorded over an excitation energy range of 20 eV employing electrons of 20 and 200 eV incident energy for scattering angles of 0/sup 0/--90/sup 0/. Every transition detected except one appears at an energy consistent with the first observed members of Rydberg series converging to one of four possible ion states. The first two observed transitions belong to (2a/sub 1//sub g/)/sup 2/..-->../sup 1//sup ,//sup 3/(2a/sub 1//sub g/,4s) dipole forbidden channels appearing at excitation energies of )similarreverse arrowto)6.3 and 7.05 eV for the triplet and singlet, respectively. Evidence is presented for the identification of additional forbidden transitions as well as possible low-lying valence transition

Dillon, M.A.; Spence, D.; Boesten, L.; Tanaka, H.

1988-04-01T23:59:59.000Z

11

Energy loss rate in disordered quantum well  

SciTech Connect

We report the effect of dynamically screened deformation potential on the electron energy loss rate in disordered semiconductor quantum well. Interaction of confined electrons with bulk acoustic phonons has been considered in the deformation coupling. The study concludes that the dynamically screened deformation potential coupling plays a significant role as it substantially affects the power dependency of electron relaxation on temperature and mean free path.

Tripathi, P.; Ashraf, S. S. Z. [Centre of Excellence in Nanomaterials, Faculty of Engineering and Technology, Aligarh Muslim University, Aligarh-202002 (India); Hasan, S. T. [Physics Department, Faculty of Science, The M.S. University of Baroda, Vadodara-390002 (India); Sharma, A. C. [Physics Department, Sibli National College, Azamgarh-276128 (India)

2014-04-24T23:59:59.000Z

12

Recessed light fixtures: Infiltration energy loss  

SciTech Connect

This article reports that a recent study revealed that fluorescent bulbs can reduce convective energy losses by 15--65% as compared to incandescent bulbs. Recessed light fixtures are commonly installed in offices and homes. However, a problem arises in homes when the fixtures are set in the ceiling such that the top of the light fixture is exposed to the unconditioned air in the attic. Because some air flow is necessary around the light to avoid overheating, the manufacturers do not make all the fixtures leak tight, only those that are rated for lower wattage bulbs. The need for cooling the fixture may conflict with some building efficiency codes.

Bennett, S.M.; Perez-Blanco, H. (Pennsylvania State Univ., University Park, PA (United States))

1994-06-01T23:59:59.000Z

13

Minimizing energy losses in control valves  

SciTech Connect

The pulp and paper industry uses massive amounts of energy, but it could reduce its electricity consumption by about 2,000 MW worldwide by simply optimizing the pumping of process liquids. Wasted pumping power can be significantly reduced by sizing pumps and control valves more accurately, and by using new methods of pump and valve selection. Combining the improved control valve's installed flow characteristic with state-of-the-art sizing and simulation programs ensures minimal pressure drop across the control valve without loss of accurate and reliable control in all process conditions. If accurate process condition information is available at the planning stage, even more significant pumping energy savings can be achieved. Moreover, reduced pressure drop across the control valve reduces the likelihood of valve cavitation. This, in turn, reduces the need for noise attenuation, preventing cavitation erosion, and repairing damage. To make the most of the advantages gained by using highly developed control valve sizing and selection programs, closer cooperation between process licensees, process users, and valve manufacturers is also required.

Niemela, I.; Pyotsia, J. (Neles-Jamesbury Oy, Helsinki (Finland))

1994-08-01T23:59:59.000Z

14

Radiative energy loss of muons in the MINOS Far Detector.  

E-Print Network (OSTI)

??Higher energy (>100GeV)muons lose their energy preferentially through radiativemethods such as Bremsstrahlung, Pair-production and Photo-production. Because the radiative loss of the energy is a stochastic… (more)

Bhattarai, Prabhat

2010-01-01T23:59:59.000Z

15

Practical Performance of Energy-Dispersive X-Ray Spectroscopy with a High-Voltage TEM up to 1,000 kV  

Science Journals Connector (OSTI)

......microprobe and electron energy-loss spectroscopy on...microscope equipped with EDS and energy filtered imaging system...Hashimoto H. Kanao Y: Energy dependence of contamination...beam testing technology. New York and London: Plenum Press......

Kazuo Furuya; Mitsuaki Osaki; Mitsuhiro Awaji; Tetsuya Saito

1996-08-01T23:59:59.000Z

16

Energy loss of light ions in different carbon compounds  

Science Journals Connector (OSTI)

Experimental data on the energy loss of light H, Li, B, and N ions ... have been presented for the range of ion energies from 0.01 to 0.6 MeV/nucleon. It has been shown that the energy loss in the compounds does ...

Yu. A. Belkova; Ya. A. Teplova

2010-04-01T23:59:59.000Z

17

Charm production and energy loss at the LHC with ALICE  

E-Print Network (OSTI)

The latest results on the ALICE performance for production and in-medium QCD energy loss measurements of charm particles at the LHC are presented.

Andrea Dainese; for the ALICE Collaboration

2004-09-29T23:59:59.000Z

18

Correlation Of Surface Heat Loss And Total Energy Production...  

Open Energy Info (EERE)

Correlation Of Surface Heat Loss And Total Energy Production For Geothermal Systems Jump to: navigation, search OpenEI Reference LibraryAdd to library Conference Paper: Correlation...

19

Definition: Reduced Electricity Losses | Open Energy Information  

Open Energy Info (EERE)

Losses Losses Jump to: navigation, search Dictionary.png Reduced Electricity Losses Functions that provide this benefit could help manage peak feeder loads, reduced electricity throughput, locate electricity production closer to the load and ensure that voltages remain within service tolerances, while minimizing the amount of reactive power provided. These actions can reduce electricity losses by making the system more efficient for a given load served or by actually reducing the overall load on the system.[1] Related Terms load, electricity generation, reactive power, smart grid References ↑ SmartGrid.gov 'Description of Benefits' An inl LikeLike UnlikeLike You like this.Sign Up to see what your friends like. ine Glossary Definition Retrieved from "http://en.openei.org/w/index.php?title=Definition:Reduced_Electricity_Losses&oldid=502644

20

Electron energy-loss spectrum of nanowires G. F. Bertsch  

E-Print Network (OSTI)

Electron energy-loss spectrum of nanowires G. F. Bertsch Institute of Nuclear Theory and Department, Cornell University, Ithaca, New York 14853 Received 8 May 1998 The electronic properties of nanoscale-size fibers can be studied by electron energy-loss spectroscopy with electron beams that pass near the fiber

Bertsch George F.

Note: This page contains sample records for the topic "tem energy losses" 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

Standby and Off-Mode Energy Losses  

E-Print Network (OSTI)

with the University of Coimbra. Its research interests include energyefficient technologies, renewable energies in projects in developing countries to promote the penetration of energy efficient technologies (Brazil, Egypt. Ekodoma operates in the Baltic countries since 1991, working towards energy efficiency, renewable energies

Paris-Sud XI, Université de

22

Acoustic quality factor and energy losses in cylindrical pipes  

Science Journals Connector (OSTI)

The quality factor Q of a damped oscillator equals 2? times the ratio of stored energy to the energy dissipated per cycle. This makes Q a sensitive probe of energy losses. Using modest equipment we measured the acoustical Q for a set of cylindrical pipes having the same resonant frequency but different diameters D. The graph of Q vs D could be well fitted with two parameters one of which corresponds to energy loss via radiation from the ends of the pipe and the other to thermal and viscous losses very close to the pipe wall. The wall loss parameter was quite constant no matter where the pipes were located but the radiative loss parameter varied significantly with location inside a room suggesting that room reflections affected the sound radiated from the pipe. This study offers valuable insights at no great expense and could be the basis of an upper-division undergraduatelaboratory experiment.

Michael J. Moloney; Daniel L. Hatten

2001-01-01T23:59:59.000Z

23

High energy-resolution electron energy-loss spectroscopy study of the electric structure of double-walled carbon nanotubes  

Science Journals Connector (OSTI)

......High energy-resolution electron energy-loss spectroscopy study of the...Egerton R F. (1986) Electron Energy-Loss Spectroscopy in the Electron Microscope , Plenum, New York. High energy-resolution electron energy-loss......

Yohei Sato; Masami Terauchi; Yahachi Saito; Riichiro Saito

2006-06-01T23:59:59.000Z

24

Partition of energy Loss from the Barotropic Tide in Fjords  

Science Journals Connector (OSTI)

As the barotropic tide propagates into and out of a fjord, it loses energy to friction, internal tides and high-frequency internal waves. Estimates of these losses for three British Columbia fjords, using current meter data, indicate that ...

B. De Young; S. Pond

1989-02-01T23:59:59.000Z

25

Energy loss of light ions in polypropylene absorber foils  

Science Journals Connector (OSTI)

The energy loss of Li, C and O ions in polypropylene absorber foils has been measured using 15 UD Pelletron Accelerator facility at Inter University Accelerator Centre (IUAC), New Delhi, India. The actual expe...

Vishal Sharma; P. K. Diwan; Pratibha; Tanu Sharma; Shyam Kumar…

2009-07-01T23:59:59.000Z

26

Electron energy loss study of TiC[111].  

SciTech Connect

The electron energy loss (EEL) spectra of TiC (111) were measured over a wide range of electron primary energies. The electron energy losses below 16 eV were analyzed using the theoretical band calculations of Price and Cooper [11]. The volume and surface plasma excitations were identified from their electron primary energy dependence. Energy losses due to core electrons autoinization effects were identified above 35 eV. We observed a difference in the electronic structure of the surface vs. the bulk of TiC. The temperature dependence of the EEL spectra was studied between 300 to 1250 K. The reaction of the TiC surface with ethylene and oxygen was also investigated. The ethylene bonding to the TiC surface was found to be very weak. There is evidence of the formation of surface defects on the TiC (111) surface at high temperatures.

Chan, Y.; Lee, S. W.; Liao, D.; Cooper, B. R.; Montano, P. A.; Materials Science Division; Brooklyn Coll. of City Univ. of New York; West Virginia Univ.

1992-01-01T23:59:59.000Z

27

Interface structure analysis of SiC fibres reinforced SiC matrix composites by energy filtering TEM  

Science Journals Connector (OSTI)

......Research of Energy Technology, Hokkaido...Research of Energy Technology, Hokkaido...especially gas turbines and fusion...issue for the development of improved...commercial Ar gas flow conditions...Advanced Energy Technology, Sapporo......

Tamaki Shibayama; Heishichiro Takahashi; M. Kawasaki; Akira Kohyama

1999-01-01T23:59:59.000Z

28

images/logoetsf Introduction Electron Energy Loss Spectroscopy Applications: Nanotubes and Graphene Perspectives  

E-Print Network (OSTI)

images/logoetsf Introduction Electron Energy Loss Spectroscopy Applications: Nanotubes and Graphene excitations Francesco Sottile #12;Introduction Electron Energy Loss Spectroscopy Applications: Nanotubes excitations Francesco Sottile #12;Introduction Electron Energy Loss Spectroscopy Applications: Nanotubes

Botti, Silvana

29

Energy Loss in Nuclear Drell-Yan Process  

E-Print Network (OSTI)

By means of the nuclear parton distributions which can be used to provide a good explanation for the EMC effect in the whole x range, we investigate the energy loss effect in nuclear Drell-Yan process. When the cross section of lepton pair production is considered varying with the center-of-mass energy of the nucleon-nucleon collision, we find that the nuclear Drell-Yan(DY) ratio is suppressed due to the energy loss, which balances the overestimate of the DY ratio only in consideration of the effect of nuclear parton distributions.

Jian-Jun Yang; Guang-Lie Li

1998-05-21T23:59:59.000Z

30

One more ingredient for energy loss quantification  

E-Print Network (OSTI)

The recent results at RHIC for direct $\\gamma$-charged hadron azimuthal correlations in heavy-ion collisions are presented. We use these correlations to study the color charge density of the medium through the medium-induced modification of high-p$_T$ parton fragmentation. Azimuthal correlations of direct photons at high transverse energy (8 $<$ E$_T$ $<$ 16 GeV) with away-side charged hadrons of transverse momentum (3 $<$ p$_T$ $<$ 6 GeV/c) have been measured over a broad range of centrality for $Au+Au$ collisions and $p+p$ collisions at $\\sqrt{s_{NN}}$ = 200 GeV in the STAR experiment. A transverse shower shape analysis in the STAR Barrel Electromagnetic Calorimeter Shower Maximum Detector is used to discriminate between the direct photons and photons from the decays of high-p$_T$ $\\pi^{0}$. The per-trigger away-side yield of direct $\\gamma$ is smaller than from $\\pi^{0}$ triggers in the same centrality class. Within the current uncertainty the recoil suppression in central $Au+Au$ collisions I$_{CP}$ of direct $\\gamma$ and $\\pi^{0}$ are similar.

A. M. Hamed

2008-10-22T23:59:59.000Z

31

Effect of strain on low-loss electron energy loss spectra of group-III nitrides  

Science Journals Connector (OSTI)

Thin films of AlN experiencing different strain states were investigated with a scanning transmission electron microscope (STEM) by low-loss electron energy loss spectroscopy (EELS). The results conclude that the low-loss properties and in particular, the plasmon peak position is shifted as a direct consequence of the inherent strain of the sample. The results reveal that strain, even minor levels, can be measured by STEM-EELS. These results were further corroborated by full potential calculations and expanded to include the similar III nitrides GaN and InN. It is found that a unit-cell volume change of 1% results in a bulk plasmon peak shift of 0.159, 0.168, and 0.079 eV for AlN, GaN, and InN, respectively, according to simulations. The AlN peak shift was experimentally corroborated with a corresponding peak shift of 0.156 eV. The unit-cell volume is used here since it is found that regardless of in- and out-of-plane lattice augmentation, the low-loss properties appear near identical for constant volume. These results have an impact on the interpretation of the plasmon energy and its applicability for determining and separating stress and composition. It is found that while the bulk plasmon energy can be used as a measure of the composition in a group-III nitride alloy for relaxed structures, the presence of strain significantly affects such a measurement. The strain is found to have a lower impact on the peak shift for Al1-xInxN (?3% compositional error per 1% volume change) and In1-xGaxN alloys compared to significant variations for Al1-xGaxN (16% compositional error for 1% volume change). Hence a key understanding in low-loss studies of III nitrides is that strain and composition are coupled and affect one another.

J. Palisaitis; C.-L. Hsiao; M. Junaid; J. Birch; L. Hultman; P. O. Å. Persson

2011-12-07T23:59:59.000Z

32

Parton energy loss due to synchrotron-like gluon emission  

E-Print Network (OSTI)

We develop a quasiclassical theory of the synchrotron-like gluon radiation. Our calculations show that the parton energy loss due to the synchrotron gluon emission may be important in the jet quenching phenomenon if the plasma instabilities generate a sufficiently strong chromomagnetic field. Our gluon spectrum disagrees with that obtained by Shuryak and Zahed within the Schwinger's proper time method.

B. G. Zakharov

2008-09-03T23:59:59.000Z

33

Fluctuations and nuclear interactions in the energy loss of cosmic-ray muons  

Science Journals Connector (OSTI)

The processes concerned with energy losses of high-energy muons, expecially the nuclear interaction, are examined. From the energy loss relation — (dE/dt)=k +bE, the average range-energy relation is given, includ...

K. Kobayakawa

1967-02-11T23:59:59.000Z

34

Energy loss characteristics of heavy ions in nitrogen, carbon dioxide, argon, hydrocarbon gases and tradescantia tissue  

E-Print Network (OSTI)

Energy loss characteristics of heavy ions in nitrogen, carbon dioxide, argon, hydrocarbon gases and tradescantia tissue

Dennis, J A

1971-01-01T23:59:59.000Z

35

TEM studies of Ge nanocrystal formation in PECVD grown  

Science Journals Connector (OSTI)

We investigate the effect of annealing on the Ge nanocrystal formation in multilayered germanosilicate–oxide films grown on Si substrates by plasma enhanced chemical vapour deposition (PECVD). The multilayered samples were annealed at temperatures ranging from 750 to 900?°C for 5 min under nitrogen atmosphere. The onset of formation of Ge nanocrystals, at 750?°C, can be observed via high resolution TEM micrographs. The diameters of Ge nanocrystals were observed to be between 5 and 14 nm. As the annealing temperature is raised to 850?°C, a second layer of Ge nanocrystals forms next to the original precipitation band, positioning itself closer to the substrate SiO2 interface. High resolution cross section TEM images, electron diffraction and electron energy-loss spectroscopy as well as energy-dispersive x-ray analysis (EDAX) data all indicate that Ge nanocrystals are present in each layer.

S A?an; A Dana; A Aydinli

2006-01-01T23:59:59.000Z

36

Clean Energy Finance Guide (Chapter 5: Basic Concepts for Clean Energy Unsecured Lending and Loan Loss Reserve Funds)  

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

Provides basic concepts for Clean Energy Unsecured Lending and Loan Loss Reserve Funds. Author: U. S. Department of Energy

37

High-energy-resolution monochromator for aberration-corrected scanning transmission electron microscopy/electron energy-loss spectroscopy  

Science Journals Connector (OSTI)

...R. F. 1996 Electron energy-loss spectroscopy in...microscope, 2nd edn. New York, NYPlenum. Egerton...Transmission electron energy loss spectrometry in materials...energy-gain spectroscopy. New J. Phys. 10, 1367-2630...

2009-01-01T23:59:59.000Z

38

Detecting low levels of transuranics with electron energy loss spectroscopy  

Science Journals Connector (OSTI)

With the second difference electron energy loss spectroscopy (EELS) technique, transuranic (TRU) and rare-earth (RE) elements have been detected at low concentration levels (< 200 ppm) in alteration phases formed during the laboratory corrosion of nuclear waste glass. Use of the high-energy M4,5 edges to detect TRU elements is the only method available to positively identify them because the weaker lower-energy N4,5 edges overlap with the more intense M4,5 edges of the trace levels of \\{REs\\} that may be present in the same alteration phases. The position and intensity of the M4,5 absorption edges of the TRU were confirmed with samples of transuranic contaminated soils and data from the literature. The M4 : M5 ratio for the actinide absorption edges was used, in combination with crystal chemical considerations to determine chemical state.

E.C. Buck; J.A. Fortner

1997-01-01T23:59:59.000Z

39

From electron energy-loss spectroscopy to multi-dimensional and multi-signal electron microscopy  

Science Journals Connector (OSTI)

......4 Colliex C . Electron Energy Loss Spectroscopy in the...eds. (1984) Vol. 9. New York: Academic Press. 65-177. 5 Egerton R . Electron Energy Loss Spectroscopy in the Electron Microscope (1986) New York: Plenum Press. 6 Isaacson......

Christian Colliex

2011-08-01T23:59:59.000Z

40

Liquid helium cryo TEM | EMSL  

NLE Websites -- All DOE Office Websites (Extended Search)

cryo TEM Liquid helium cryo TEM The JEOL JEM-3000SFF was designed for high-resolution cryogenic transmission electron microscopy (cryo-EM) of biological samples and expands EMSL...

Note: This page contains sample records for the topic "tem energy losses" 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

Mapping defects in a carbon nanotube by momentum transfer dependent electron energy loss spectromicroscopy  

E-Print Network (OSTI)

Mapping defects in a carbon nanotube by momentum transfer dependent electron energy loss nanotubes Electron microscopy Electron energy loss spectroscopy q-dependence Electron linear dichroism a b s t r a c t Momentum resolved electron energy loss (EELS) spectra of multi-walled carbon nanotubes

Hitchcock, Adam P.

42

Energy loss of relativistic heavy ions in matter B.A. Weaver*, A.J. Westphal  

E-Print Network (OSTI)

Energy loss of relativistic heavy ions in matter B.A. Weaver*, A.J. Westphal Space Sciences.50.Bw Keywords: Energy loss; Stopping power; Heavy ions 1. Introduction The theory of energy loss has.: + 1-510-642-9733; fax: + 1- 510-643-7629. E-mail address: weaver@curium.ssl.berkeley.edu (B.A. Weaver

Leung, Pui-Tak "Peter"

43

Energy loss for heavy quarks in relation to light partons; is radiative energy loss for heavy quarks anomalous?  

E-Print Network (OSTI)

The scaling properties of jet suppression measurements are compared for non-photonic electrons ($e^{\\pm}$) and neutral pions ($\\pi^0$) in Au + Au collisions at $\\sqrt{s_{NN}}=200$ GeV. For a broad range of transverse momenta and collision centralities, the comparison is consistent with jet quenching dominated by radiative energy loss for both heavy and light partons. Less quenching is indicated for heavy quarks via $e^{\\pm}$; this gives an independent estimate of the transport coefficient $\\hat{q}$ that agrees with its magnitude obtained from quenching of light partons via $\\pi^0$'s.

Roy A. Lacey; R. Wei; N. N. Ajitanand; J. M. Alexander; X. Gong; J. Jia; A. Mawi; S. Mohapatra; D. Reynolds; S. Salnikov; A. Taranenko

2009-07-23T23:59:59.000Z

44

E-Print Network 3.0 - additional energy losses Sample Search...  

NLE Websites -- All DOE Office Websites (Extended Search)

savings calculations Provides energy ratings for models Provides room by room heat loss Reports... The National Renewable Energy Laboratory (NREL), along with the...

45

Energy Loss Effect in High Energy Nuclear Drell-Yan Process  

E-Print Network (OSTI)

The energy loss effect in nuclear matter, which is another nuclear effect apart from the nuclear effect on the parton distribution as in deep inelastic scattering process, can be measured best by the nuclear dependence of the high energy nuclear Drell-Yan process. By means of the nuclear parton distribution studied only with lepton deep inelastic scattering experimental data, measured Drell-Yan production cross sections for 800GeV proton incident on a variety of nuclear targets are analyzed within Glauber framework which takes into account energy loss of the beam proton. It is shown that the theoretical results with considering the energy loss effect are in good agreement with the FNAL E866.

Chun-Gui Duan; Li-Hua Song; Li-Juan Huo; Guang-Lie Li

2004-05-13T23:59:59.000Z

46

Study of OCS by electron energy loss spectroscopy  

SciTech Connect

A high resolution study of the OCS molecule is presented using low-energy electron energy loss spectroscopy. Measurements have been carried out at various incident electron energies and scattering angles, covering the whole range from 5 to about 17 eV. The high energy resolution (approx.30 meV) has allowed the detailed analysis of the vibrational progressions and Rydberg series, and some identifications are supported by the plots of their differential cross sections. For the first time, the two overlapping progressions of the (10sigma) /sup 1/Pi state, around 7.4 eV, are resolved by electron impact. A new triplet state is observed at 7.59 eV, assigned to the (11sigma) /sup 3/Pi known state, whose /sup 1/Pi term would correspond to a known progression lying under the strong /sup 1/..sigma../sup +/ band. Above the first ionization limit, the spectrum presents a striking similarity with the photoionization efficiency curves, with the strong autoionizing features which form Rydberg series converging to the B /sup 2/..sigma../sup +/ state of OCS/sup +/. Even the weak series VIII is present, appearing as a small dip. Further measurements carried out at low residual electron energy (< or =5 eV) reveal that such features then become peaks of strength comparable with the other features. Typical triplet behavior are pointed out for some of them. Two new series (X and XI) are thus proposed, while another feature is assigned to the n = 3 term of series VII converging to the C /sup 2/..sigma../sup +/ state. For all of the series observed in this region, the quantum defects are determined and orbital assignments are proposed.

Leclerc, B.; Poulin, A.; Roy, D.; Hubin-Franskin, M.h.; Delwiche, J.

1981-12-01T23:59:59.000Z

47

Muon energy-loss distribution and its applications to muon energy determination  

Science Journals Connector (OSTI)

For measurements of the cosmic-ray muon spectrum at energies above 100 TeV and for observations of high-energy astronomical neutrinos a big detector is necessary. In both cases, information on the muon energy plays an important role. The method for estimating the muon energy from the energy loss should yield accurate values with a big detector. To evaluate the method we measured the muon energy-loss distribution in the MUTRON detector and applied the results to a big detector proposed for deployment in the ocean. When estimating the muon energy we divided the muon track into several segments and discarded the segment with the maximum energy loss. If a detector with a volume of (500m)3 is constructed in the ocean using strings of detectors with 50-m spacing between adjacent strings, and 10-m spacing between detectors on a string, muon energies could be measured with a relative error of about 30%. For muons produced by the charged-current interaction (??+N??+X), the neutrino direction can be determined with an error less than 1° for muon energies above 1 TeV.

K. Mitsui

1992-05-01T23:59:59.000Z

48

Radiative parton energy loss in expanding quark-gluon plasma with magnetic monopoles  

E-Print Network (OSTI)

We study radiative parton energy loss in an expanding quark-gluon plasma with magnetic monopoles. We find that for realistic number density of thermal monopoles obtained in lattice simulations parton rescatterings on monopoles can considerably enhance energy loss for plasma produced in $AA$ collisions at RHIC and LHC energies. However, contrary to previous expectations, monopoles do not lead to the surface dominance of energy loss.

B. G. Zakharov

2014-12-19T23:59:59.000Z

49

Magnetic and electric contributions to the energy loss in a dynamical QCD medium  

E-Print Network (OSTI)

The computation of radiative energy loss in a finite size QCD medium with dynamical constituents is a key ingredient for obtaining reliable predictions for jet quenching in ultra-relativistic heavy ion collisions. It was previously shown that energy loss in dynamical QCD medium is significantly higher compared to static QCD medium. To understand this difference, we here analyze magnetic and electric contributions to energy loss in dynamical QCD medium. We find that the significantly higher energy loss in the dynamical case is entirely due to appearance of magnetic contribution in the dynamical medium. While for asymptotically high energies, the energy loss in static and dynamical medium approach the same value, we find that the physical origin of the energy loss in these two cases is different.

Magdalena Djordjevic

2011-05-21T23:59:59.000Z

50

A measurement of energy loss distributions of energetic muons in iron  

Science Journals Connector (OSTI)

The energy-loss spectrum of high energy muons after traversal of a 10 meter iron ... of better than 1%. Data taken at energies between 50 and 120 GeV are in...

R. Kopp; A. Argento; A. C. Benvenuti…

1985-07-01T23:59:59.000Z

51

Balancing Energy Consumption and Food Quality Loss in Supermarket Refrigeration System  

E-Print Network (OSTI)

Balancing Energy Consumption and Food Quality Loss in Supermarket Refrigeration System J. Cai and J- tion of commercial refrigeration system, featuring balanced system energy consumption and food quality energy consumption and food quality loss, at varying ambient condition, in a supermarket refrigeration

Skogestad, Sigurd

52

On the Trade-off between Energy Consumption and Food Quality Loss in Supermarket Refrigeration Systems  

E-Print Network (OSTI)

On the Trade-off between Energy Consumption and Food Quality Loss in Supermarket Refrigeration on optimizing objective functions such as overall energy consumption, system efficiency, capacity, or wear systems, featuring a balanced system energy consumption and food quality loss. A former developed quality

Skogestad, Sigurd

53

Structuring Loan Loss Reserve Funds for Clean Energy Finance...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Loan loss reserve funds ("LRF"): * provide partial risk coverage to motivate commercial FIs to offer EERE finance products, pioneer new products, broaden access to finance,...

54

Vision Loss: Visual Impairment and Vision Impairment | Department of Energy  

NLE Websites -- All DOE Office Websites (Extended Search)

Vision Loss: Visual Impairment and Vision Impairment Vision Loss: Visual Impairment and Vision Impairment Vision Loss: Visual Impairment and Vision Impairment Visual impairment or vision impairment is vision loss that constitutes a significant limitation of visual capability resulting from disease, trauma, or a congenital or degenerative condition that cannot be corrected by conventional means, including refractive correction, medication, or surgery. Low Vision Anyone with non-correctable reduced vision is considered to be visually impaired, and can have a wide range of causes. Blindness Blindness is the condition of lacking visual perception due to physiological or psychological factors. Hearing Impairment Hearing impairment is a full or partial decrease in the ability to detect or understand sounds. Losing the ability to detect some frequencies, or

55

Characterization of Mn-doped ZnO nanobelts by electron energy-loss spectroscopy  

Science Journals Connector (OSTI)

......energy resolution of EELS spectra: an alternative to the monochromator solution. Ultramicroscopy (2003) 96:385-400. 20 Overwijk M , Reefman D. Maximum-entropy deconvolution applied to electron energy-loss spectroscopy. Micron (2000) 31:325-331......

Jingmin Zhang; Chao Yu; Zhimin Liao; Xinzheng Zhang; Liping You; Dapeng Yu

2009-10-01T23:59:59.000Z

56

Energy Loss by Thermal Conduction and Natural Convection in Annular Solar Receivers  

Science Journals Connector (OSTI)

An effective device for the collection of solar energy is the so-called parabolic-cylindrical solar collector. In this device, a circular ... high temperature receiver tube designs the rate of energy loss by comb...

A. C. Ratzel; C. E. Hickox; D. K. Gartling

1978-01-01T23:59:59.000Z

57

A measurement of the energy loss spectrum of 150 GeV muons in iron  

Science Journals Connector (OSTI)

The energy loss spectrum of 150 GeV muons has been measured with a prototype of ... dP/dv per radiation length of a fractional energy loss v = ?E?/E? has been measured in the range v...= 0.01 ÷ 0.95; it is compar...

1997-09-01T23:59:59.000Z

58

Transmission electron energy-loss spectroscopy study of carbon nanotubes upon high temperature treatment  

E-Print Network (OSTI)

Transmission electron energy-loss spectroscopy study of carbon nanotubes upon high temperature electron energy-loss spectroscopy study of carbon nanotubes upon high temperature treatment B. W. Reed, M of carbon nanotube materials, grown with a pulsed-laser deposition technique but purified and heat treated

Bertsch George F.

59

Quenching of light hadrons at RHIC in a collisional energy loss scenario  

E-Print Network (OSTI)

We evaluate the nuclear suppression factor, $R_{AA}(p_T)$ for light hadrons by taking into account the collisional energy loss. We show that in the measured $p_T$ domain of RHIC the elastic process is the dominant mechanism for the partonic energy loss.

Pradip Roy; Jan-e Alam; Abhee K. Dutt-Mazumder

2008-06-03T23:59:59.000Z

60

Heavy quark collisional energy loss in the quark-gluon plasma including finite relaxation time  

E-Print Network (OSTI)

In this paper, we calculate the soft-collisional energy loss of heavy quarks traversing the viscous quark-gluon plasma including the effects of a finite relaxation time $\\tau_\\pi$ on the energy loss. We find that the collisional energy loss depends appreciably on $\\tau_\\pi$ . In particular, for typical values of the viscosity-to-entropy ratio, we show that the energy loss obtained using $\\tau_\\pi$ = 0 can be $\\sim$ 10$\\%$ larger than the one obtained using $\\tau_\\pi$ = 0. Moreover, we find that the energy loss obtained using the kinetic theory expression for $\\tau_\\pi$ is much larger that the one obtained with the $\\tau_\\pi$ derived from the Anti de Sitter/Conformal Field Theory correspondence. Our results may be relevant in the modeling of heavy quark evolution through the quark-gluon plasma.

Mauro Elias; J. Peralta-Ramos; E. Calzetta

2014-04-30T23:59:59.000Z

Note: This page contains sample records for the topic "tem energy losses" 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

Energy Loss Distribution in the Taylor-Couette Flow between Concentric Rotating Cylinders  

E-Print Network (OSTI)

The distribution of energy loss due to viscosity friction in plane Couette flow and Taylor-Couette Flow between concentric rotating cylinders are studied in detail for various flow conditions. The energy loss is related to the industrial processes in some fluid delivery devices and has significant influence on the flow efficiency, flow stability, turbulent transition, mixing, and heat transfer behaviours, etc. Therefore, it is very helpful to know about the energy loss distribution in the flow domain and to know its influence on the flow for understanding the flow physics. The calculation method of the energy loss distribution in the Taylor-Couette Flow between concentric rotating cylinders has not been found in open literature. In this note, the principle and the calculation are given for single cylinder rotating of inner or outer cylinder, and counter and same direction rotating of two cylinders. For comparison, the distribution of energy loss in a plane Couette flow is also derived for various flow conditi...

Dou, H S; Phan-Thien, N; Yeo, K S; Dou, Hua-Shu; Khoo, Boo Cheong; Phan-Thien, Nhan; Yeo, Khoon Seng

2005-01-01T23:59:59.000Z

62

Beam damage suppression of low- porous Si–O–C films by cryo-electron-energy loss spectroscopy (EELS)  

Science Journals Connector (OSTI)

......plasma processes studied by energy filtered and analytical...Egerton R F . Electron Energy Loss Spectroscopy in the...Microscope (1996) 2nd edn. New York: Plenum. 277-288...Transmission Electron Energy Loss spectrometry in Materials......

Yuji Otsuka; Yumiko Shimizu; Isao Tanaka

2009-04-01T23:59:59.000Z

63

Loss of purity by wave packet scattering at low energies  

E-Print Network (OSTI)

We study the quantum entanglement produced by a head-on collision between two gaussian wave packets in three-dimensional space. By deriving the two-particle wave function modified by s-wave scattering amplitudes, we obtain an approximate analytic expression of the purity of an individual particle. The loss of purity provides an indicator of the degree of entanglement. In the case the wave packets are narrow in momentum space, we show that the loss of purity is solely controlled by the ratio of the scattering cross section to the transverse area of the wave packets.

Jia Wang; C. K. Law; M. -C. Chu

2006-01-06T23:59:59.000Z

64

High-energy-resolution monochromator for aberration-corrected scanning transmission electron microscopy/electron energy-loss spectroscopy  

Science Journals Connector (OSTI)

...equal to the beam current per unit area per unit solid angle per unit energy interval, CFE electron sources with their...Monochromated, spatially resolved electron energy-loss spectroscopic measurements of gold nanoparticles in the plasmon range...

2009-01-01T23:59:59.000Z

65

On the energy loss of muons and their momentum spectrum  

Science Journals Connector (OSTI)

Our results on the momentum spectrum under 7.2 kg cm-2 of rock have been extended to lower momenta in order to test the expected rate of momentum loss in the rock. The low-momentum spectrum is quite sensitive to ...

M. J. Campbell; H. S. Murdoch; K. W. Ogilvie; H. D. Rathgeber

1963-01-01T23:59:59.000Z

66

Optimization of Electric Energy in Three-Phase Induction Motor by Balancing of Torque and Flux Dependent Losses  

Science Journals Connector (OSTI)

This paper presents the solution of the energy optimal control of three-phase induction motor (IM) by balancing of torque and flux dependent losses. First, we build formula of total losses of motor (iron losse...

Nguyen Thanh Hung; Nguyen Chi Thien…

2014-01-01T23:59:59.000Z

67

Electron energy loss spectroscopy studies of MgO  

E-Print Network (OSTI)

. HREELS studies were conducted on ultra-thin films of MgO(100) formed on Mo(100) in order to establish a new approach to investigate adsorbate vibrations on oxide surfaces. The conductive nature of the Mo substrate prevented the occurrence of charging...-specular scattering geometry of 8'-10' were the optimum conditions for circumventing the problem posed by the intensity of the phonon losses and thus observing the HREELS vibrational spectra of adsorbates on MgO. Water, deuterium dioxide, methanol, acetic acid...

Estrada, Cesar Antonio

2012-06-07T23:59:59.000Z

68

Atomic-Scale Chemical Imaging via Combination of Scanning Tunneling and Electron Energy Loss Spectroscopies  

E-Print Network (OSTI)

systems at atomic level Develop atomically resolved chemical imaging platform via combination of lowAtomic-Scale Chemical Imaging via Combination of Scanning Tunneling and Electron Energy Loss visualization of chemical reaction pathways to provide mechanistic understanding for catalytically important

69

Water Loss Control Using Pressure Management: Life-cycle Energy and Air Emission Effects  

Science Journals Connector (OSTI)

Pressure management is one cost-effective and efficient strategy for controlling water distribution losses. This paper evaluates the life-cycle energy use and emissions for pressure management zones in Philadelphia, Pennsylvania, and Halifax, Nova Scotia. ...

Jennifer R. Stokes; Arpad Horvath; Reinhard Sturm

2013-07-19T23:59:59.000Z

70

Adjustable Speed- A Tool for Saving Energy Losses in Pumps, Fans, Fans, Blowers and Compressors  

E-Print Network (OSTI)

Petroleum and chemical plants of today are effectively cutting energy losses in their plants thermally, electrically, and mechanically in their process equipment. In rotating process equipment such as pumps, fans, compressors, and blowers, much...

Hickok, H. N.

71

Imaging large vessels using cosmic-ray muon energy-loss techniques  

Science Journals Connector (OSTI)

Imaging the internal structure of large vessels (2–20 m in diameter) is not possible with most traditional imaging methods. The sheer size renders gamma-ray and other high-energy photon, neutron, electrical and acoustic techniques useless, whilst the use of high-energy accelerators required to produce charged-particles of sufficient energy are impractical in most industrial situations. The use of naturally occurring high-energy (?GeV) cosmic-ray mu-mesons (muons) provides an effective solution to the penetration problem. The problems of low intensity at near-horizontal angles with the cosmic-ray muon flux are addressed by using energy-loss imaging methods. In other methodologies, using charge-particle energy-loss imaging techniques, only a few events are needed compared to many thousands required if attenuation measurements were to be employed. The energies of horizontal cosmic-ray muons are distributed largely between 0.1 and 1000 GeV with a mean energy of about 50 GeV. Radiation Transport Monte-Carlo methods (GEANT4) have been used to calculate the energy loss for a selection of industrial materials in the energy range of interest. The energy loss of the muons along a ray-sum are modelled and compared to attenuation losses along the ray-sum using energy resolving detectors in coincidence before and after the sample. The energy-loss spectra across different samples are measured, demonstrating that embedded materials can be identified with as few as 10 muons passing through the sample. It is proposed that the imaging modality can be extended into a full tomographic modality allowing material identification within each voxel.

P.M. Jenneson; W.B. Gilboy; S.J.R. Simons; S.J. Stanley; D. Rhodes

2007-01-01T23:59:59.000Z

72

Real-time determination of free energy and losses in optical absorbing media  

E-Print Network (OSTI)

We introduce notions of free energy and loss in linear, absorbing dielectric media which are relevant to the regime in which the macroscopic Maxwell equations are themselves relevant. As such we solve a problem eluded to by Landau and Lifshitz in 1958, and later considered explicitly by Barash and Ginzburg, and Oughtsun and Sherman. As such we provide physically-relevant real-time notions of "energy" and "loss" in all analogous linear dissipative systems.

C. Broadbent; G. Hovhannisyan; J. Peatross; M. Clayton; S. Glasgow

2002-07-30T23:59:59.000Z

73

Gluon Radiation and Energy Losses in Top Quark Production  

E-Print Network (OSTI)

The emission of energetic gluons in $\\tt$ production in $\\ee$ annihilation can have important experimental consequences, in particular on top quark mass measurements. We present compact, analytical expressions for the gluon energy distribution and its average value at first order in QCD perturbation theory. Our results are valid for arbitrary masses, collision energies and production currents. We pay particular attention to top quark production near threshold, and show that in certain cases the soft gluon approximation is insufficient to describe the radiation spectrum.

Yu. L. Dokshitzer; V. A. Khoze; W. J. Stirling

1994-05-06T23:59:59.000Z

74

Loss of High-Energy Phosphate following Hyperthermia Demonstrated by in Vivo 31P-Nuclear Magnetic Resonance Spectroscopy  

Science Journals Connector (OSTI)

...Sciences Loss of High-Energy Phosphate following...by in Vivo 31P-Nuclear Magnetic Resonance...Loss of high-energy phosphate following...by in vivo 31P-nuclear magnetic resonance...Loss of High-Energy Phosphate following...by in Vivo 31P-Nuclear Magnetic Resonance...

Michael B. Lilly; Thian C. Ng; William T. Evanochko; Charles R. Katholi; Narinder G. Kumar; Gabriel A. Elgavish; John R. Durant; Raymond Hiramoto; Vithal Ghanta; and Jerry D. Glickson

1984-02-01T23:59:59.000Z

75

LHC Predictions from an extended theory with Elastic, Inelastic, and Path Length Fluctuating Energy Loss  

E-Print Network (OSTI)

We present the LHC predictions for the WHDG model of radiative, elastic, and path length fluctuating energy loss. We find the pT dependence of RAA is qualitatively very different from AWS-based energy loss extrapolations to the LHC; the large pT reach of the year one data at the LHC should suffice to distinguish between the two. We also discuss the importance of requiring a first elastic scatter before any medium-induced elastic or radiative loss occurs, a necessary physical effect not considered in any previous models.

William A. Horowitz

2007-02-27T23:59:59.000Z

76

Energy loss of ions by electric-field fluctuations in a magnetized plasma  

SciTech Connect

The results of a theoretical investigation of the energy loss of charged particles in a magnetized classical plasma due to the electric-field fluctuations are reported. The energy loss for a test particle is calculated through the linear-response theory. At vanishing magnetic field, the electric-field fluctuations lead to an energy gain of the charged particle for all velocities. It has been shown that in the presence of strong magnetic field, this effect occurs only at low velocities. In the case of high velocities, the test particle systematically loses its energy due to the interaction with a stochastic electric field. The net effect of the fluctuations is the systematic reduction of the total energy loss (i.e., the sum of the polarization and stochastic energy losses) at vanishing magnetic field and reduction or enhancement at strong field, depending on the velocity of the particle. It is found that the energy loss of the slow heavy ion contains an anomalous term that depends logarithmically on the projectile mass. The physical origin of this anomalous term is the coupling between the cyclotron motion of the plasma electrons and the long-wavelength, low-frequency fluctuations produced by the projectile ion. This effect may strongly enhance the stochastic energy gain of the particle.

Nersisyan, Hrachya B. [Institute of Radiophysics and Electronics, 0203 Ashtarak (Armenia); Centre of Strong Fields Physics, Yerevan State University, Alex Manoogian str. 1, 0025 Yerevan (Armenia); Deutsch, Claude [LPGP - UMR-CNRS 8578, Universite Paris XI, F-91405 Orsay (France)

2011-06-15T23:59:59.000Z

77

On the use of energy loss mechanisms to constrain Lorentz invariance violations  

E-Print Network (OSTI)

In light of recent and probably upcoming observations of very high energy astroparticles, such as those reported by the IceCube collaboration, we readdress the energy loss mechanism by Lorentz violating particles. We analytically show that Cohen-Glashow's formula for energy loss is connected with a Poisson distribution for the number of decays, whose large fluctuations prevent placing bounds on Lorentz invariance violations. However, this model ignores the sharp change in the decay width after each process. We propose replacing Poisson statistics with a new distribution that takes this into account. We study the average final energy and its fluctuations according to the new statistics, contrasting it with Cohen-Glashow's result, and discussing the reliability of energy loss mechanisms to constrain violations of Lorentz invariance.

Diego Mazón

2014-01-13T23:59:59.000Z

78

Energy loss of charm quarks from $J/?$ production in cold nuclear matter  

E-Print Network (OSTI)

$J/\\psi$ suppression in p-A collisions is studied by considering the nuclear effects on parton distribution, energy loss of beam proton and the finial state energy loss of color octet $c\\overline{c}$. The leading-order computations for $J/\\psi$ production cross-section ratios $R_{W/Be}(x_{F})$ are presented and compared with the selected E866 experimental data with the $c\\overline{c}$ remaining colored on its entire path in the medium. It is shown that the combination of the different nuclear effects accounts quite well for the observed $J/\\psi$ suppression in the experimental data. It is found that the $J/\\psi$ suppression on $R_{W/Be}(x_{F})$ from the initial state nuclear effects is more important than that induced by the energy loss of color octet $c\\overline{c}$ in the large $x_F$ region. Whether the $c\\overline{c}$ pair energy loss is linear or quadratic with the path length is not determined. The obtained $c\\overline{c}$ pair energy loss per unit path length $\\alpha=2.78\\pm0.81$ GeV/fm, which indicates that the heavy quark in cold nuclear matter can lose more energy compared to the outgoing light quark.

Li-Hua Song; Wen-Dan Miao; Chun-Gui Duan

2013-12-15T23:59:59.000Z

79

Mapping boron in silicon solar cells using electron energy-loss spectroscopy  

E-Print Network (OSTI)

Mapping boron in silicon solar cells using electron energy-loss spectroscopy M Duchamp1 , C B of Denmark, DK-2800 Kongens Lyngby, Denmark 2 Centro Atómico Bariloche, AR-8400 S. C. de Bariloche, Argentina 3 ECN Solar Energy, P.O. Box 1, NL-1755 ZG Petten, The Netherlands 4 CEA-Leti, MINATEC Campus, 17

Dunin-Borkowski, Rafal E.

80

OPTICAL CONSTANTS OF THIN FILMS FROM THE CHARACTERISTIC ELECTRON ENERGY LOSSES  

E-Print Network (OSTI)

114. OPTICAL CONSTANTS OF THIN FILMS FROM THE CHARACTERISTIC ELECTRON ENERGY LOSSES By R. E in the photon energy range from 5 to 30 eV. The optical constants of aluminum from 2 500 A to 6 500 A have been à une étude de l'oscillateur optique. Abstract. 2014 A method for obtaining the optical constants

Paris-Sud XI, Université de

Note: This page contains sample records for the topic "tem energy losses" 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

Momentum-resolved Electron Energy-Loss Spectroscopy Master Thesis, Electron Microscopy Group of Materials Science, Prof. Ute Kaiser  

E-Print Network (OSTI)

of Materials Science, Prof. Ute Kaiser Background Electron energy-loss spectroscopy (EELS) is a well like plasmons at a few 10eV, to core-shell excitations at high energy losses. In addition to the energy Microscopy group of Material Sciences in Ulm has gained experience in the acquisition and analysis of energy

Pfeifer, Holger

82

The Impact of Active Power Losses on the Wind Energy Exploitation of the North Sea  

Science Journals Connector (OSTI)

Abstract Transmission active power losses can influence the distribution of power flows in the transmission grid which consequently alter the generation dispatch and scheduling through the power system. This can especially affect the exploitation of large scale renewable energy sources (RES) since they are normally installed far away from load centres. RES technologies are expected to cover a large portion of the future energy mix in the continental European power system and grid bottlenecks are a critical factor for successful integration of RES technologies in Europe. In this respect, transmission losses can significantly affect the potential grid bottlenecks and the exploitation of the expected energy produced by RES. In this paper a comparison analysis is carried out on approaches to include active power losses in a DC optimal power flow. The initial idea is to apply a method to the existing flow-based market model Power System Simulation Tool (PSST), a tool for studying the effect of high penetration of wind power and consequent grid expansion in the European power system. Implementation of losses in large scale power systems significantly increases the computational burden. A solution to reduce computational time is to calculate reasonably good approximations of the active power losses. This paper proposes an approach to include transmission active power losses that can be implemented in large scale power system in reasonable computational time.

Hossein Farahmand; Leif Warland; Daniel Huertas-Hernando

2014-01-01T23:59:59.000Z

83

Loss of High-Energy Phosphate following Hyperthermia Demonstrated by in Vivo 31P-Nuclear Magnetic Resonance Spectroscopy  

Science Journals Connector (OSTI)

...even after substantial heat exposure. An obvious...discrepancy is that the loss of high-energy phos...correlation between loss of ATP, cell kill, and heat dose, when compared...Inhomogenous heat distribution, variable metabolic...

Michael B. Lilly; Thian C. Ng; William T. Evanochko; Charles R. Katholi; Narinder G. Kumar; Gabriel A. Elgavish; John R. Durant; Raymond Hiramoto; Vithal Ghanta; and Jerry D. Glickson

1984-02-01T23:59:59.000Z

84

Range and energy-loss of heavy ions by a nuclear track technique  

Science Journals Connector (OSTI)

A simple and fairly accurate nuclear track technique has been described to measure the range and energy-loss rate of any heavy ion in any elemental or complex media. The experimental values of range and energy loss of 16.34 MeV/u 238U ions in nickel and tantalum have been measured by the track technique using CR-39 as track detector. The error in measurement varies from 5–10%. Measured ranges are compared with the corresponding theoretical values obtained from some commonly used theories and data tables.

K.K. Dwivedi

1991-01-01T23:59:59.000Z

85

The photonuclear energy loss of cosmic-ray muons and its relation with photon-nucleon cross-section  

Science Journals Connector (OSTI)

The coefficientb N of the photonuclear energy loss for high-energy muons is calculated by the generalized vector-dominance model with the different energy dependences in real photon-nucleon cross-...

Y. Minorikawa; T. Kitamura; K. Kobayakawa

86

Fluctuating Heavy Quark Energy Loss in Strongly-Coupled Quark-Gluon Plasma  

E-Print Network (OSTI)

Results from an energy loss model that includes thermal fluctuations in the energy loss for heavy quarks in a strongly-coupled plasma are shown to be qualitatively consistent with single particle data from both RHIC and LHC. The model used is the first to properly include the fluctuations in heavy quark energy loss as derived in string theory and that do not obey the usual fluctuation-dissipation relations. These fluctuations are crucial for simultaneously describing both RHIC and LHC data; leading order drag results without fluctuations are falsified by current data. Including the fluctuations is non-trivial and relies on the Wong-Zakai theorem to fix the numerical Langevin implementation. The fluctuations lead to surprising results: B meson anisotropy is similar to that for D mesons at LHC, and the double ratio of D to B meson nuclear modification factors approaches unity more rapidly than even predictions from perturbative energy loss models. It is clear that future work in improving heavy quark energy los...

Horowitz, W A

2015-01-01T23:59:59.000Z

87

High-energy irradiation and mass loss rates of hot Jupiters in the solar neighborhood  

E-Print Network (OSTI)

Giant gas planets in close proximity to their host stars experience strong irradiation. In extreme cases photoevaporation causes a transonic, planetary wind and the persistent mass loss can possibly affect the planetary evolution. We have identified nine hot Jupiter systems in the vicinity of the Sun, in which expanded planetary atmospheres should be detectable through Lyman alpha transit spectroscopy according to predictions. We use X-ray observations with Chandra and XMM-Newton of seven of these targets to derive the high-energy irradiation level of the planetary atmospheres and the resulting mass loss rates. We further derive improved Lyman alpha luminosity estimates for the host stars including interstellar absorption. According to our estimates WASP-80 b, WASP-77 b, and WASP-43 b experience the strongest mass loss rates, exceeding the mass loss rate of HD 209458 b, where an expanded atmosphere has been confirmed. Furthermore, seven out of nine targets might be amenable to Lyman alpha transit spectroscopy...

Salz, M; Czesla, S; Schmitt, J H M M

2015-01-01T23:59:59.000Z

88

Correlation Of Surface Heat Loss And Total Energy Production For Geothermal  

Open Energy Info (EERE)

source source History View New Pages Recent Changes All Special Pages Semantic Search/Querying Get Involved Help Apps Datasets Community Login | Sign Up Search Page Edit History Facebook icon Twitter icon » Correlation Of Surface Heat Loss And Total Energy Production For Geothermal Systems Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference Paper: Correlation Of Surface Heat Loss And Total Energy Production For Geothermal Systems Details Activities (1) Areas (1) Regions (0) Abstract: Geothermal systems lose their heat by a site-specific combination of conduction (heat flow) and advection (surface discharge). The conductive loss at or near the surface (shallow heat flow) is a primary signature and indication of the strength of a geothermal system. Using a database of

89

Fast-ion Energy Loss During TAE Avalanches in the National Spherical Torus Experiment  

SciTech Connect

Strong TAE avalanches on NSTX, the National Spherical Torus Experiment [M. Ono, et al., Nucl. Fusion 40 (2000) 557] are typically correlated with drops in the neutron rate in the range of 5% - 15%. In previous studies of avalanches in L-mode plasmas, these neutron drops were found to be consistent with modeled losses of fast ions. Here we expand the study to TAE avalanches in NSTX H-mode plasmas with improved analysis techniques. At the measured TAE mode amplitudes, simulations with the ORBIT code predict that fast ion losses are negligible. However, the simulations predict that the TAE scatter the fast ions in energy, resulting in a small (? 6%) drop in fast ion ?. The net decrease in energy of the fast ions is sufficient to account for the bulk of the drop in neutron rate, even in the absence of fast ion losses. This loss of energy from the fast ion population is comparable to the estimated energy lost by damping from the Alfven wave during the burst. The previously studied TAE avalanches in L-mode are re-evaluated using an improved calculation of the potential fluctuations in the ORBIT code.

Fredrickson, E D; Darrow, D S; Gorelenkov, N N; Kramer, G J; Kubota, S; Podesta, M; White, R B; Bortolon, A; Gerhardt, S P; Bell, R E; Diallo, A; LeBlanc, B; Levinton, F M

2012-07-11T23:59:59.000Z

90

Quenching of light hadrons at RHIC in a collisional energy loss scenario  

Science Journals Connector (OSTI)

We evaluate the nuclear suppression factor, RAA(pT) for light hadrons by taking into account the collisional energy loss. Within the ambit of the present model we show that in the measured pT domain of RHIC the contribution from the elastic process has a sizable magnitude.

Pradip Roy; Jan-e Alam; Abhee K Dutt-Mazumder

2008-01-01T23:59:59.000Z

91

Early thermalization, hydrodynamics and energy loss in AdS/CFT  

E-Print Network (OSTI)

Gauge/gravity duality has provided unprecedented opportunities to study dynamics in certain strongly coupled gauge theories. This review aims to highlight several applications to heavy ion collisions including far-from-equilibrium dynamics, hydrodynamics and jet energy loss at strong coupling.

Chesler, Paul M

2015-01-01T23:59:59.000Z

92

Heavy Flavor Production and Energy Loss with Two-Particle Correlations at PHENIX  

E-Print Network (OSTI)

Heavy quarks are a valuable probe of the hot, dense medium created in a heavy ion collision, and are an important test of proposed mechanisms of energy loss. It was discovered that single non-photonic electrons are suppressed at a similar level to light hadrons, implying a comparable level of energy loss between light and heavy partons. Because theory has had a difficult time explaining the level of heavy quark energy loss, it is crucial to better understand charm and bottom suppression. Electron-hadron correlations have been used at PHENIX to study heavy flavor in both p+p and Au+Au collisions. In p+p the ratio of charm to bottom production has been measured using mass correlations through a partial reconstruction of the D meson. Electron-hadron angular correlations have also been used to study medium modification of heavy flavor, and we see hints of energy loss effects. A complementary study of correlated electron-muon pairs provides a clean measurement of heavy flavor production in a rapidity range not yet studied.

Tatia Engelmore; for the PHENIX Collaboration

2009-09-23T23:59:59.000Z

93

Characterization of Solidified Gas Thin Film Targets via Alpha Particle Energy Loss  

E-Print Network (OSTI)

A method is reported for measuring the thickness and uniformity of thin films of solidified gas targets. The energy of alpha particles traversing the film is measured and the energy loss is converted to thickness using the stopping power. The uniformity is determined by measuring the thickness at different positions with an array of sources. Monte Carlo simulations have been performed to study the film deposition mechanism. Thickness calibrations for a TRIUMF solid hydrogen target system are presented.

MUH collaboration; M. C. Fujiwara; G. A. Beer; J. L. Beveridge; J. L. Douglas; T. M. Huber; R. Jacot-Guillarmod; S. K. Kim; P. E. Knowles; A. R. Kunselman; M. Maier; G. M. Marshall; G. R. Mason; F. Mulhauser; A. Olin; C. Petitjean; T. A. Porcelli; J. Zmeskal

1996-10-06T23:59:59.000Z

94

Mapping of sp2/sp3 in DLC thin film by signal processed ESI series energy-loss image  

Science Journals Connector (OSTI)

.................................. 19 Overwijk M H F and Reefman D (2000) Maximum-entropy deconvolution applied to electron energy-loss spectroscopy. Micron 31: 325......

Jing-Yi Yan; Fu-Rong Chen; Ji-Jung Kai

2002-11-01T23:59:59.000Z

95

The extraction of nuclear sea quark distribution and energy loss effect in Drell-Yan experiment  

E-Print Network (OSTI)

The next-to-leading order and leading order analysis are performed on the differential cross section ratio from Drell-Yan process. It is found that the effect of next-to-leading order corrections can be negligible on the differential cross section ratios as a function of the quark momentum fraction in the beam proton and the target nuclei for the current Fermilab and future lower beam proton energy. The nuclear Drell-Yan reaction is an ideal tool to study the energy loss of the fast quark moving through cold nuclei. In the leading order analysis, the theoretical results with quark energy loss are in good agreement with the Fermilab E866 experimental data on the Drell-Yan differential cross section ratios as a function of the momentum fraction of the target parton. It is shown that the quark energy loss effect has significant impact on the Drell-Yan differential cross section ratios. The nuclear Drell-Yan experiment at current Fermilab and future lower energy proton beam can not provide us with more information on the nuclear sea quark distribution.

Chun-Gui Duan; Na Liu; Zhan-Yuan Yan

2006-09-06T23:59:59.000Z

96

Energy Loss and Charge Transfer of Argon in a Laser-Generated Carbon Plasma  

Science Journals Connector (OSTI)

This Letter reports on the measurement of the energy loss and the projectile charge states of argon ions at an energy of 4??MeV/u penetrating a fully ionized carbon plasma. The plasma of ne?1020??cm-3 and Te?180??eV is created by two laser beams at ?Las=532??nm incident from opposite sides on a thin carbon foil. The resulting plasma is spatially homogenous and allows us to record precise experimental data. The data show an increase of a factor of 2 in the stopping power which is in very good agreement with a specifically developed Monte Carlo code, that allows the calculation of the heavy ion beam’s charge state distribution and its energy loss in the plasma.

A. Frank, A. Blaževi?, V. Bagnoud, M. M. Basko, M. Börner, W. Cayzac, D. Kraus, T. Heßling, D. H. H. Hoffmann, A. Ortner, A. Otten, A. Pelka, D. Pepler, D. Schumacher, An. Tauschwitz, and M. Roth

2013-03-12T23:59:59.000Z

97

Energy losses of high-energy muons and ?-leptons in inelastic scattering by nuclei  

Science Journals Connector (OSTI)

A hybrid model is used to calculate the losses of muons and ?-leptons in inelastic scattering by...0...-boson. In the calculations, nuclear effects, such as shading and antiscreening of nucleons, the EMC effect, ...

K. S. Lokhtin; S. I. Sinegovskii

2006-03-01T23:59:59.000Z

98

Diagnosing Energy Loss: PHENIX Results on High-pT Hadron Spectra  

E-Print Network (OSTI)

Measurements of inclusive spectra of hadrons at large transverse momentum over a broad range of energy in different collision systems have been performed with the PHENIX experiment at RHIC. The data allow to study the energy and system size dependence of the suppression observed in RAA of high-pT hadrons at sqrt(s_NN)= 200 GeV. Due to the large energy range from sqrt(s_NN)= 22 GeV to 200 GeV, the results can be compared to results from CERN SPS at a similar energy. The large Au+Au dataset from the 2004 run of RHIC also allows to constrain theoretical models that describe the hot and dense matter produced in such collisions. Investigation of particle ratios such as eta/pi0 helps understanding the mechanisms of energy loss.

B. Sahlmueller

2007-01-25T23:59:59.000Z

99

Stellar energy-loss rates due to S, P, or T neutral currents  

Science Journals Connector (OSTI)

The energy-loss rate in stellar matter due to neutrino production is calculated assuming that the weak leptonic neutral current includes scalar, pseudoscalar, or tensor covariants. The processes e+ + e-?? + ?¯, ? + e?e + ? + ?¯, e + Z?e + Z + ? + ?¯, and ? + ??? + ?¯ are considered in the respective temperature and density regions of physical significance. Comparison with observed stellar lifetimes allows an upper limit to be placed on the new couplings.

Duane A. Dicus and Edward W. Kolb

1977-02-15T23:59:59.000Z

100

Gravitational waves from inspiralling compact binaries: Energy loss and waveform to second--post-Newtonian order  

E-Print Network (OSTI)

Gravitational waves generated by inspiralling compact binaries are investigated to the second--post-Newtonian (2PN) approximation of general relativity. Using a recently developed 2PN-accurate wave generation formalism, we compute the gravitational waveform and associated energy loss rate from a binary system of point-masses moving on a quasi-circular orbit. The crucial new input is our computation of the 2PN-accurate ``source'' quadrupole moment of the binary. Tails in both the waveform and energy loss rate at infinity are explicitly computed. Gravitational radiation reaction effects on the orbital frequency and phase of the binary are deduced from the energy loss. In the limiting case of a very small mass ratio between the two bodies we recover the results obtained by black hole perturbation methods. We find that finite mass ratio effects are very significant as they increase the 2PN contribution to the phase by up to 52\\%. The results of this paper should be of use when deciphering the signals observed by the future LIGO/VIRGO network of gravitational-wave detectors.

Luc Blanchet; Thibault Damour; Bala R. Iyer

1995-01-24T23:59:59.000Z

Note: This page contains sample records for the topic "tem energy losses" 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

Energy loss of proton, alpha particle, and electron beams in hafnium dioxide films  

SciTech Connect

The electronic stopping power, S, of HfO{sub 2} films for proton and alpha particle beams has been measured and calculated. The experimental data have been obtained by the Rutherford backscattering technique and cover the range of 120-900 and 120-3000 keV for proton and alpha particle beams, respectively. Theoretical calculations of the energy loss for the same projectiles have been done by means of the dielectric formalism using the Mermin energy loss function--generalized oscillator strength (MELF-GOS) model for a proper description of the HfO{sub 2} target on the whole momentum-energy excitation spectrum. At low projectile energies, a nonlinear theory based on the extended Friedel sum rule has been employed. The calculations and experimental measurements show good agreement for protons and a quite good one for alpha particles. In particular, the experimental maximums of both stopping curves (around 120 and 800 keV, respectively) are well reproduced. On the basis of this good agreement, we have also calculated the inelastic mean-free path (IMFP) and the stopping power for electrons in HfO{sub 2} films. Our results predict a minimum value of the IMFP and a maximum value of the S for electrons with energies around 120 and 190 eV, respectively.

Behar, Moni; Fadanelli, Raul C.; Nagamine, Luiz C. C. M. [Instituto de Fisica, Universidade Federal do Rio Grande do Sul, Av. Bento Goncalves 9500, 91501-970 Porto Alegre, RS (Brazil); Abril, Isabel; Denton, Cristian D. [Departament de Fisica Aplicada, Universitat dAlacant, Apartat 99, E-03080 Alacant (Spain); Garcia-Molina, Rafael [Departamento de Fisica-CIOyN, Universidad de Murcia, Apartado 4021, E-30080 Murcia (Spain); Arista, Nestor R. [Division Colisiones Atomicas, Centro Atomico Bariloche, RA-8400 San Carlos de Bariloche (Argentina)

2009-12-15T23:59:59.000Z

102

Energy Loss of Neutrinos in 20M{center_dot} Star  

SciTech Connect

Current ideas on neutrino oscillation plus confirmation from neutrino experiments make possible the changing of neutrino flavor due to interactions with the electrons in medium. When neutrinos pass through a medium and interact with the electrons, an effective potential energy is produced due to coherent forward scattering that occurred in the medium. This potential engenders significant changes in the neutrino masses and their mixing in the medium. Thus electron neutrinos would oscillate into different mass eigenstate and this is dependent on the energy of the neutrinos. Some of the energy will be lost in the coherent scattering with the electrons by the charged current interaction. We have calculated the energy loss of the neutrinos by using a stopping power equation for a 20M{center_dot} star.

Ahmad, Nor Sofiah; Yusof, Norhasliza; Kassim, Hasan Abu [Department of Physics, University of Malaya, 50603, Kuala Lumpur (Malaysia)

2010-08-12T23:59:59.000Z

103

Experimental and theoretical study of the energy loss of C and O in Zn  

SciTech Connect

We present a combined experimental-theoretical study of the energy loss of C and O ions in Zn in the energy range 50-1000 keV/amu. This contribution has a double purpose, experimental and theoretical. On the experimental side, we present stopping power measurements that fill a gap in the literature for these projectile-target combinations and cover an extended energy range, including the stopping maximum. On the theoretical side, we make a quantitative test on the applicability of various theoretical approaches to calculate the energy loss of heavy swift ions in solids. The description is performed using different models for valence and inner-shell electrons: a nonperturbative scattering calculation based on the transport cross section formalism to describe the Zn valence electron contribution, and two different models for the inner-shell contribution: the shellwise local plasma approximation (SLPA) and the convolution approximation for swift particles (CasP). The experimental results indicate that C is the limit for the applicability of the SLPA approach, which previously was successfully applied to projectiles from H to B. We find that this model clearly overestimates the stopping data for O ions. The origin of these discrepancies is related to the perturbative approximation involved in the SLPA. This shortcoming has been solved by using the nonperturbative CasP results to describe the inner-shell contribution, which yields a very good agreement with the experiments for both C and O ions.

Cantero, E. D.; Lantschner, G. H.; Arista, N. R. [Centro Atomico Bariloche and Instituto Balseiro, Comision Nacional de Energia Atomica, 8400 San Carlos de Bariloche (Argentina); Montanari, C. C.; Miraglia, J. E. [Instituto de Astronomia y Fisica del Espacio (CONICET-UBA), Buenos Aires (Argentina); Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Buenos Aires (Argentina); Behar, M.; Fadanelli, R. C. [Instituto de Fisica, Universidade Federal do Rio Grande do Sul, Avenida Bento Goncalves 9500, Porto Alegre-RS (Brazil)

2011-07-15T23:59:59.000Z

104

Reduction in tribological energy losses in the transportation and electric utilities sectors  

SciTech Connect

This report is part of a study of ways and means of advancing the national energy conservation effort, particularly with regard to oil, via progress in the technology of tribology. The report is confined to two economic sectors: transportation, where the scope embraces primarily the highway fleets, and electric utilities. Together these two sectors account for half of the US energy consumption. Goal of the study is to ascertain the energy sinks attributable to tribological components and processes and to recommend long-range research and development (R and D) programs aimed at reducing these losses. In addition to the obvious tribological machine components such as bearings, piston rings, transmissions and so on, the study also extends to processes which are linked to tribology indirectly such as wear of machine parts, coatings of blades, high temperature materials leading to higher cycle efficiencies, attenuation of vibration, and other cycle improvements.

Pinkus, O.; Wilcock, D.F.; Levinson, T.M.

1985-09-01T23:59:59.000Z

105

Comparative Study of Hybrid Powertrains on Fuel Saving, Emissions, and Component Energy Loss in HD Trucks  

SciTech Connect

We compared parallel and series hybrid powertrains on fuel economy, component energy loss, and emissions control in Class 8 trucks over both city and highway driving. A comprehensive set of component models describing battery energy, engine fuel efficiency, emissions control, and power demand interactions for heavy duty (HD) hybrids has been integrated with parallel and series hybrid Class 8 trucks in order to identify the technical barriers of these hybrid powertrain technologies. The results show that series hybrid is absolutely negative for fuel economy benefit of long-haul trucks due to an efficiency penalty associated with the dual-step conversions of energy (i.e. mechanical to electric to mechanical). The current parallel hybrid technology combined with 50% auxiliary load reduction could elevate 5-7% fuel economy of long-haul trucks, but a profound improvement of long-haul truck fuel economy requires additional innovative technologies for reducing aerodynamic drag and rolling resistance losses. The simulated emissions control indicates that hybrid trucks reduce more CO and HC emissions than conventional trucks. The simulated results further indicate that the catalyzed DPF played an important role in CO oxidations. Limited NH3 emissions could be slipped from the Urea SCR, but the average NH3 emissions are below 20 ppm. Meanwhile our estimations show 1.5-1.9% of equivalent fuel-cost penalty due to urea consumption in the simulated SCR cases.

Gao, Zhiming [ORNL; FINNEY, Charles E A [ORNL; Daw, C Stuart [ORNL; LaClair, Tim J [ORNL; Smith, David E [ORNL

2014-01-01T23:59:59.000Z

106

Loan Loss Reserve Agreement  

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

Loan Loss Reserve Agreement, from the Tool Kit Framework: Small Town University Energy Program (STEP).

107

Strongly Dipolar Polythiourea and Polyurea Dielectrics with High Electrical Breakdown, Low Loss, and High Electrical Energy Density  

Science Journals Connector (OSTI)

Dielectric materials with high electric energy density and low loss are of great importance for applications in modern electronics and electrical systems. Strongly dipolar materials have the potential ... polymer...

Shan Wu; Quinn Burlingame; Zhao-Xi Cheng; Minren Lin…

2014-12-01T23:59:59.000Z

108

Subtropical catastrophe: Significant loss of low-mode tidal energy at J. A. MacKinnon and K. B. Winters  

E-Print Network (OSTI)

] An idealized numerical study of a northward propagating internal tide reveals a dramatic loss of energy. Introduction [2] Breaking internal waves, whose energy is primarily provided by the wind and the tides away as a low mode internal tide. Where and by what mechanism the bulk of this energy is converted

MacKinnon, Jennifer

109

The uncertainties due to quark energy loss on determining nuclear sea quark distribution from nuclear Drell-Yan data  

E-Print Network (OSTI)

By means of two different parametrizations of quark energy loss and the nuclear parton distributions determined only with lepton-nuclear deep inelastic scattering experimental data, a leading order phenomenological analysis is performed on the nuclear Drell-Yan differential cross section ratios as a function of the quark momentum fraction in the beam proton and target nuclei for E772 experimental data. It is shown that there is the quark energy loss effect in nuclear Drell-Yan process apart from the nuclear effects on the parton distribution as in deep inelastic scattering. The uncertainties due to quark energy loss effect is quantified on determining nuclear sea quark distribution by using nuclear Drell-Yan data. It is found that the quark energy loss effect on nuclear Drell-Yan cross section ratios make greater with the increase of quark momentum fraction in the target nuclei. The uncertainties from quark energy loss become bigger as the nucleus A come to be heavier. The Drell-Yan data on proton incident middle and heavy nuclei versus deuterium would result in an overestimate for nuclear modifications on sea quark distribution functions with neglecting the quark energy loss. Our results are hoped to provide good directional information on the magnitude and form of nuclear modifications on sea quark distribution functions by means of the nuclear Drell-Yan experimental data.

C. G. Duan; N. Liu; G. L. Li

2008-11-05T23:59:59.000Z

110

Total energy loss to fast ablator-ions and target capacitance of direct-drive implosions on OMEGA  

E-Print Network (OSTI)

Energetics, Rochester, New York 14623, USA 3 Los Alamos National Laboratory, Los Alamos, New Mexico 87545Total energy loss to fast ablator-ions and target capacitance of direct-drive implosions on OMEGA N 19, 093101 (2012) Target normal sheath acceleration sheath fields for arbitrary electron energy

111

$\\beta$ Energy Loss Analysis in ${15}^P$: Application to Nuclear Batteries  

E-Print Network (OSTI)

Using radioactive nuclei for electricity generation in Microelectromechanical Systems (MEMS) is important research as needs for longer life batteries increase. There are many applications developed in recent years, however there are limitations still to overcome before a final product can be produced. One of the important issue is the low power output. This research addresses this issue with a new method in fabrication for powering MEMS sensors. We have proposed to fabricate $^{63}Ni$ nano-particle $\\beta^-$source in a glassy phosphorous type sphere which creates scintillation and phosphorescent photons. The micro-spheres will be doped in our semiconductor. Since $^{63}^Ni$ is a pure $\\beta^-$ emitter, in this report the energy loss $dE/dx$ of $\\beta^-$ in our scintillation material (phosphorus $^{15}P$) is modelled using C++ coding with GEANT4 and furthermore the particle distributions in two different source geometries (circular and square structure) is studied using Finite Element Analysis (FEA). We have s...

Mirfayzi, Seyed Reza

2012-01-01T23:59:59.000Z

112

Parton energy loss and momentum broadening at NLO in high temperature QCD plasmas  

E-Print Network (OSTI)

We present an overview of a perturbative-kinetic approach to jet propagation, energy loss, and momentum broadening in a high temperature quark-gluon plasma. The leading-order kinetic equations describe the interactions between energetic jet-particles and a non-abelian plasma, consisting of on-shell thermal excitations and soft gluonic fields. These interactions include 22 scatterings, collinear bremsstrahlung, and drag and momentum diffusion. We show how the contribution from the soft gluonic fields can be factorized into a set of Wilson line correlators on the light cone. We review recent field-theoretical developments, rooted in the causal properties of these correlators, which simplify the calculation of the appropriate Wilson lines in thermal field theory. With these simplifications lattice measurements of transverse momentum broadening have become possible, and the kinetic equations describing parton transport have been extended to next-to-leading order in the coupling g.

Ghiglieri, Jacopo

2015-01-01T23:59:59.000Z

113

The influence of quark energy loss on extracting nuclear sea quark distribution from nuclear Drell-Yan experimental data  

E-Print Network (OSTI)

By means of two typical kinds of quark energy loss parametrization and the nuclear parton distributions determined only with lepton-nuclear deep inelastic scattering experimental data, a leading order analysis are performed on the proton-induced Drell-Yan differential cross section ratios of tungsten versus deuterium as a function of the quark momentum fraction in the beam proton and target nuclei. It is found that the theoretical results with quark energy loss are in good agreement with the experimental data. The quark energy loss effect produce approximately 3% to 11% suppression on the Drell-Yan differential cross section ratios $R_{W/D}$ in the range $0.05\\leq x_2\\leq0.3$. The application of nuclear Drell-Yan data with heavy targets is remarkably subject to difficulty in the constraints of the nuclear sea-quark distribution.

Duan Chun-Gui; Liu Na

2008-09-28T23:59:59.000Z

114

Nuclear and Non-Ionizing Energy-Loss for Coulomb Scattered Particles from Low Energy up to Relativistic Regime in Space Radiation Environment  

E-Print Network (OSTI)

In the space environment, instruments onboard of spacecrafts can be affected by displacement damage due to radiation. The differential scattering cross section for screened nucleus--nucleus interactions - i.e., including the effects due to screened Coulomb nuclear fields -, nuclear stopping powers and non-ionization energy losses are treated from about 50\\,keV/nucleon up to relativistic energies.

Boschini, M J; Gervasi, M; Giani, S; Grandi, D; Ivantchenko, V; Pensotti, S; Rancoita, P G; Tacconi, M

2011-01-01T23:59:59.000Z

115

Analytic expressions for the inelastic scattering and energy loss of electron and proton beams in carbon nanotubes  

SciTech Connect

We have determined ''effective'' Bethe coefficients and the mean excitation energy of stopping theory (I-value) for multiwalled carbon nanotubes (MWCNTs) and single-walled carbon nanotube (SWCNT) bundles based on a sum-rule constrained optical-data model energy loss function with improved asymptotic properties. Noticeable differences between MWCNTs, SWCNT bundles, and the three allotropes of carbon (diamond, graphite, glassy carbon) are found. By means of Bethe's asymptotic approximation, the inelastic scattering cross section, the electronic stopping power, and the average energy transfer to target electrons in a single inelastic collision, are calculated analytically for a broad range of electron and proton beam energies using realistic excitation parameters.

Emfietzoglou, D.; Kyriakou, I. [Medical Physics Laboratory, University of Ioannina Medical School, 45110 Ioannina (Greece); Garcia-Molina, R. [Departamento de Fisica-CIOyN, Universidad de Murcia, E-30100 Murcia (Spain); Abril, I. [Departament de Fisica Aplicada, Universitat d'Alacant, E-03080 Alacant (Spain); Kostarelos, K. [Nanomedicine Laboratory, Centre for Drug Delivery Research, School of Pharmacy, University of London, London WC1N 1AX (United Kingdom)

2010-09-15T23:59:59.000Z

116

Energy loss rate of a charged particle in HgTe/(HgTe, CdTe) quantum wells  

SciTech Connect

The energy loss rate (ELR) of a charged particle in a HgTe/(HgTe, CdTe) quantum well is investigated. We consider scattering of a charged particle by the bulk insulating states in this type of topological insulator. It is found that the ELR characteristics due to the intraband excitation have a linear energy dependence while those due to interband excitation depend on the energy exponentially. An interesting quantitative result is that for a large range of the incident energy, the mean inelastic scattering rate is around a few terahertz.

Chen, Qinjun; Sin Ang, Yee [School of Physics, University of Wollongong, New South Wales 2522 (Australia)] [School of Physics, University of Wollongong, New South Wales 2522 (Australia); Wang, Xiaolin [Institute for Superconducting and Electronic Materials, University of Wollongong, New South Wales 2522 (Australia)] [Institute for Superconducting and Electronic Materials, University of Wollongong, New South Wales 2522 (Australia); Lewis, R. A.; Zhang, Chao [School of Physics, University of Wollongong, New South Wales 2522 (Australia) [School of Physics, University of Wollongong, New South Wales 2522 (Australia); Institute for Superconducting and Electronic Materials, University of Wollongong, New South Wales 2522 (Australia)

2013-11-04T23:59:59.000Z

117

Efficient Conversion of Thermal Energy into Hydrogen: Comparing Two Methods to Reduce Exergy Losses in a Sulfuric Acid Decomposition Reactor  

Science Journals Connector (OSTI)

Efficient Conversion of Thermal Energy into Hydrogen: Comparing Two Methods to Reduce Exergy Losses in a Sulfuric Acid Decomposition Reactor ... The first design uses optimal control theory to obtain a more uniform distribution of the entropy production. ... This optimized design is found to perform the best, but it requires significant changes in the heating equipment in order to approximately realize the optimal temperature profiles. ...

Leen V. van der Ham; Joachim Gross; Ad Verkooijen; Signe Kjelstrup

2009-08-06T23:59:59.000Z

118

Empirical Determination of the Energy Loss Rate of Accelerated Electrons in a Well-Observed Solar Flare  

E-Print Network (OSTI)

Empirical Determination of the Energy Loss Rate of Accelerated Electrons in a Well-Observed Solar & Michele Piana1,3 ABSTRACT We present electron images of an extended solar flare source, deduced from the impulsive phase of a solar flare typically appears in the form of accelerated electrons. In the generally

Piana, Michele

119

Critical coupling and coherent perfect absorption for ranges of energies due to a complex gain and loss symmetric system  

E-Print Network (OSTI)

We consider a non-Hermitian medium with a gain and loss symmetric, exponentially damped potential distribution to demonstrate different scattering features analytically. The condition for critical coupling (CC) for unidirectional wave and coherent perfect absorption (CPA) for bidirectional waves are obtained analytically for this system. The energy points at which total absorption occurs are shown to be the spectral singular points for the time reversed system. The possible energies at which CC occurs for left and right incidence are different. We further obtain periodic intervals with increasing periodicity of energy for CC and CPA to occur in this system.

Mohammad Hasan; Ananya Ghatak; Bhabani Prasad Mandal

2014-03-03T23:59:59.000Z

120

U.S. Manufacturing Energy Use and Loss: The Big Picture  

E-Print Network (OSTI)

A first step in realizing industrial energy efficiency opportunities is to understand how industry is using, and losing, energy. The U.S. Manufacturing Energy and Carbon Footprints provide a reliable macro-scale reference for manufacturing energy...

Brueske, S.; Sabouni, R.

2014-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "tem energy losses" 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

Installation of the FEI Osirus TEM in the YINQE lab  

E-Print Network (OSTI)

Double-tilt cryo holder #12;TEM enclosure from Midwest Cleanroom Associates #12;The enclosure is needed

Haller, Gary L.

122

UHV-TEM-REM Studies of Si(111) Surfaces  

Science Journals Connector (OSTI)

...April 1991 research-article Articles UHV-TEM-REM Studies of Si(111) Surfaces...Theoretical Physics Supplement No. 106. 1991 UHV-TEM-REM Studies of Si(lll) Surfaces...Si evaporator, on the other hand, was UHV-TEM-REM Studies of Si(lll) Surfaces......

Katsumichi Yagi; Akira Yamanaka; Hiroaki Sato; Masashi Shima; Hironori Ohse; Soh-ichiro Ozawa; Yasumasa Tanishiro

1991-04-01T23:59:59.000Z

123

Preliminary Analysis on Linac Oscillation Data LI05-19 and Wake Field Energy Loss in FACET Commissioning 2012  

SciTech Connect

In this note, preliminary analysis on linac ocsillation data in FACET linac LI05-09 plus LI11-19 is presented. Several quadrupoles are identified to possibly have different strength, compared with their designed strength in the MAD optics model. The beam energy loss due to longitudinal wake fields in the S-band linac is also analytically calculated, also by LITRACK numerical simulations.

Sun, Yipeng; /SLAC

2012-07-23T23:59:59.000Z

124

Motorized manipulator for positioning a TEM specimen  

DOE Patents (OSTI)

The invention relates to a motorized manipulator for positioning a TEM specimen holder with sub-micron resolution parallel to a y-z plane and rotating the specimen holder in the y-z plane, the manipulator comprising a base (2), and attachment means (30) for attaching the specimen holder to the manipulator, characterized in that the manipulator further comprises at least three nano-actuators (3.sup.a, 3.sup.b, 3.sup.c) mounted on the base, each nano-actuator showing a tip (4.sup.a, 4.sup.b, 4.sup.c), the at least three tips defining the y-z plane, each tip capable of moving with respect to the base in the y-z plane; a platform (5) in contact with the tips of the nano-actuators; and clamping means (6) for pressing the platform against the tips of the nano-actuators; as a result of which the nano-actuators can rotate the platform with respect to the base in the y-z plane and translate the platform parallel to the y-z plane.

Schmid, Andreas Karl (Berkeley, CA); Andresen, Nord (Berkeley, CA)

2010-12-14T23:59:59.000Z

125

Energy-loss rate of a fast particle in two-dimensional semiconductors with Rashba spin-orbit coupling  

SciTech Connect

The energy-loss rate (ELR) of a charged particle in a two-dimensional semiconductor with Rashba spin-orbit coupling is studied. Our model takes into account of the temperature and density dependence of the electronic properties of the Rashba system. The energy and temperature dependence of the ELR are presented. It is found that a finite Rashba spin-orbit coupling offers a mechanism of tuning the mean scattering time in narrow-gap semiconductors. With a change of Rashba parameter of around 3 times, the mean scattering time can change by one to two orders of magnitude.

Feng, W. [Department of Physics, Jiangsu University, Zhenjiang, Jiangsu (China)] [Department of Physics, Jiangsu University, Zhenjiang, Jiangsu (China); Tawfiq, Asya [School of Physics, University of Wollongong, New South Wales 2522 (Australia)] [School of Physics, University of Wollongong, New South Wales 2522 (Australia); Cao, J. C. [Key Laboratory of Terahertz Solid State Technology, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai (China)] [Key Laboratory of Terahertz Solid State Technology, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai (China); Zhang, C. [School of Physics and Institute for Superconducting and Electronic Materials, University of Wollongong, New South Wales 2522 (Australia)] [School of Physics and Institute for Superconducting and Electronic Materials, University of Wollongong, New South Wales 2522 (Australia)

2013-02-04T23:59:59.000Z

126

Dependence of secondary ion emission from organic material on the energy loss of the impacting heavy ion  

SciTech Connect

Samples of the amino acid valine were irradiated by 2.5 MeV-Ar, 0.8 MeV-Kr and 1.0 MeV Xe beams from the Argonne Dynamitron accelerator in order to study the energy distributions of ejected secondary ions. For Kr and Xe the nuclear stopping power exceeded the electronic stopping power by a factor 2 or 3, respectively, but the functional shape of the energy distributions and the mean ejection energies (0.9--1.4 eV) indicated that the molecular ions (M{plus minus}H){sup {plus minus}} are desorbed by an electronic sputter process. Contributions of atomic collision cascades were observed for the H{sup {minus}} ion. In the second part of the article, the overall dependence of molecular ion yields on the electronic energy loss is discussed in the framework of recent desorption models and the structure of the nuclear track.

Hunt, J.E. (Argonne National Lab., IL (United States)); Wien, K. (Technische Hochschule Darmstadt (Germany). Inst. fuer Kernphysik)

1991-01-01T23:59:59.000Z

127

Exchange-excited f-f transitions in the electron-energy-loss spectra of rare-earth metals  

Science Journals Connector (OSTI)

Dipole-forbidden f-f multiplet excitations are found to characterize the electron-energy-loss spectra of Pr, Nd, Sm, Gd, Tb, Dy, Ho, and Er when the primary-electron energy is close to the binding energy of the 4d electrons. In Sm and Gd the f-f transitions are also detected at lower primary energies. The identification of the sharp peaks observed in the spectra as f-f excitations comes from straightforward comparison with the absorption spectra of the trivalent ions. The excitation energies of the f-f transitions are found to depend very weakly on the chemical environment. The exchange nature of the f-f excitation process explains the strong decrease of the intensities of the f-f peaks when the primary energy is raised, and is consistent with the resonant enhancement observed for primary energies near the 4d-4f threshold. A similar resonance is also observed in the primary-energy dependence of the intensity of the plasmon peak.

F. Della Valle and S. Modesti

1989-07-15T23:59:59.000Z

128

Abstract 3360: Loss of sulf-1 reprograms energy metabolism in ovarian cancer  

Science Journals Connector (OSTI)

...for Cancer Research January 2010 meeting-abstract Behavioral...Abstracts - Energy Balance: From...and Community Abstracts: AACR International...Prevention Research-- Dec 6-9...Houston, TX Abstract CN05-04: Energy balance within...

Susmita Mondal; Debarshi Roy; Juliana Camacho Pereira; Eduardo N. Chini; and Vijayalakshmi Shridhar

2014-10-01T23:59:59.000Z

129

Constraints on dark energy with the LOSS SN Ia sample  

Science Journals Connector (OSTI)

......deceleration, constrain the evolution of dark energy (DE), and search for possible...et-al. 2013). Imminent or future surveys to gather large data sets at high redshift include the Dark Energy Survey (DES) and the Large Synoptic......

Mohan Ganeshalingam; Weidong Li; Alexei V. Filippenko

2013-01-01T23:59:59.000Z

130

Beräkning av värmeenergiförluster i flerbostadshus genom analys av den totala fjärrvärmeenergianvändningen; Calculation of the thermal energy losses in apartment buildings through analyze of the total district thermal energy consumption .  

E-Print Network (OSTI)

?? This thesis has been carried out on behalf of IV Produkt AB and intends to set an average ratio of thermal energy losses in… (more)

Fredhav, Dennis

2012-01-01T23:59:59.000Z

131

Chapter 5. Basic Concepts for Clean Energy Unsecured Lending and Loan Loss Reserve Funds  

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

When grantees involve third-party commercial lenders in clean energy (energy efficiency and renwable energy or EE/RE) finance programs, they have the opportunity to leverage public funds including American Recovery and Reinvestment Act of 2009 (ARRA) funds by as much as 10 to 20 times.

132

Loan Loss Reserve Funds Webinars  

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

Provides a listing of past L loan loss reserve fund webinars and associated files. Author: U. S. Department of Energy, Energy Efficiency & Renewable Energy

133

Energy Use Loss and Opportunities Analysis: U.S. Manufacturing & Mining  

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

The focus of this study is on energy systems (steam generators, power systems, fired heaters, heat exchangers, compressors, pumps, fans) used across the industrial sector.

134

Inelastic exchange scattering in electron-energy-loss spectroscopy: Localized excitations in transition-metal and rare-earth systems  

Science Journals Connector (OSTI)

Cross sections for quasiatomic excitation by exchange scattering of electrons are calculated in the Born-Ochkur approximation for 3p-3d and 3d-3d transitions in transition-metal systems, and for 4d-4f and 4f-4f transitions in rare earths. The energy dependence of the spin polarization of 3p-3d and 4d-4f losses in reflection electron-energy-loss spectroscopy from ferromagnetic surfaces involves a balance of small-angle spin-dependent inelastic processes accompanied by a high-angle elastic scattering, and large-angle spin-flip exchange scattering without the need for elastic scattering. Both 3d-3d excitations, e.g., in transition-metal compounds, and 4f-4f excitations in rare earths involve spin-flip transitions whose scattering amplitudes g fall off with momentum transfer q such that the full width at half maximum q1/2 (in a.u.) is given by q1/2?rnl??2, where ?rnl? is the expectation value of r for the 3d or 4f electron. The angular width of the spin-flip differential cross section is then much greater than for dipole transitions, a pattern that helps to account for how these intra-atomic transitions compete with dipole processes for primary energies in excess of 100 eV.

S. J. Porter; J. A. D. Matthew; R. J. Leggott

1994-07-15T23:59:59.000Z

135

Estimation and Analysis of Energy Utilities Consumption in Batch Chemical Industry through Thermal Losses Modeling  

Science Journals Connector (OSTI)

A hot water distribution system is mainly used for heating the infrastructure (i.e., keeping the building and pipes at a desired temperature) and is fed by steam condensates. ... As a result, the three-parameters model, whose functional form already integrates this feature, was preferred to calibrate valves distributing liquid utilities both in the multiproduct and the monoproduct plant. ... However, an additional assumption for heat losses is necessary or a detailed and complicated analytical calculation for all components of the heating/cooling utility system. ...

Claude Rérat; Stavros Papadokonstantakis; Konrad Hungerbühler

2012-06-29T23:59:59.000Z

136

AFTER A Framework for electrical power sysTems vulnerability...  

Open Energy Info (EERE)

Germany) Jump to: navigation, search Project Name AFTER A Framework for electrical power sysTems vulnerability identification, dEfense and Restoration Country Germany Coordinates...

137

In Situ TEM Investigation of Congruent Phase Transition and Structural...  

NLE Websites -- All DOE Office Websites (Extended Search)

of Congruent Phase Transition and Structural Evolution of Nanostructured SiliconCarbon Anode for In Situ TEM Investigation of Congruent Phase Transition and Structural Evolution...

138

GEOPHYSICAL RESEARCH LETTERS, VOL. 40, 15, doi:10.1002/grl.50872, 2013 The geography of semidiurnal mode-1 internal-tide energy loss  

E-Print Network (OSTI)

of semidiurnal mode-1 internal-tide energy loss S. M. Kelly,1,2 N. L. Jones,1 J. D. Nash,3 and A. F. Waterhouse4 coefficients along the continental margins. On average, mode-1 internal tides lose about 60% of their energy, J. D. Nash, and A. F. Waterhouse (2013), The geogra- phy of semidiurnal mode-1 internal-tide energy

139

Study of CS/sub 2/ in the 3--10 eV energy range by electron energy loss spectroscopy  

SciTech Connect

Electron impact energy loss spectra are obtained in CS/sub 2/ in the energy loss range of 3--10 eV with high and medium energy resolution. Measurements have been performed at various incident electron energies (approx.10--100eV) and scattering angles (4/sup 0/--90/sup 0/). The high energy resolution (approx.25 meV) has made possible the detailed analysis of the vibrational progressions and Rydberg series, and some identifications are supported by the plots of the differential cross sections of the studied transitions. New bands are evidenced in the region of the low-lying states 3--5 eV and classifications are proposed. The features appearing between 6.5 and 10 eV are classified into ten Rydberg series converging to the X /sup 2/Pi/sub g/ ground state of CS/sup +//sub 2/, and assignments are proposed for most of them. New triplet features are also evidenced around 6.6 eV, while the triplet character proposed by Greening and King for some transitions is not confirmed.

Hubin-Franskin, M.; Delwiche, J.; Poulin, A.; Leclerc, B.; Roy, P.; Roy, D.

1983-02-01T23:59:59.000Z

140

New approach to high-resolution electron-energy-loss spectroscopy of polar materials: Studies of water and methanol adsorption on ultrathin MgO(100) films  

Science Journals Connector (OSTI)

A novel approach to the application of high-resolution electron-energy-loss spectroscopy to polar materials is demonstrated in this Letter. By using a high-impact-energy beam and an off-specular scattering geometry, losses due to excitation of the adsorbates are observed in the 1000–4000-cm-1 range with little interference from the intense losses due to multiple surface optical phonons (Fuchs-Kliewer modes). Adsorption of water and methanol on ultrathin MgO(100) films on Mo(100) have been studied using this new approach.

Ming-Cheng Wu; Cesar A. Estrada; D. Wayne Goodman

1991-11-11T23:59:59.000Z

Note: This page contains sample records for the topic "tem energy losses" 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

Low energy positron diffraction from Cu(111): Importance of surface loss processes at large angles of incidence  

SciTech Connect

Intensities of positrons specularly diffracted from Cu(111) were measured at the Brandeis positron beam facility and analyzed in the energy range 8eVenergies strong energy dependences occur associated both with multiple elastic scattering phenomena within atomic layers of Cu parallel to the surface and with the thresholds of inelastic channels (e.g., plasmon creation). Use of the free electron calculation of V{sub i} shows that energy dependence of inelastic processes is necessary to obtain a satisfactory description of the absolute magnitude of the diffracted intensities below E = 50eV. Detailed comparison of the calculated and observed diffraction intensities reveals the necessity of incorporating surface loss processes explicitly into the model in order to achieve a quantitative description of the measured intensities for E<40eV and {theta}>40{degree}. 30 refs., 5 figs., 1 tab.

Lessor, D.L. (Pacific Northwest Lab., Richland, WA (USA)); Duke, C.B. (Xerox Corp., Webster, NY (USA). Webster Research Center); Lippel, P.H.; Brandes, G.R.; Canter, K.F.; Horsky, T.N. (Brandeis Univ., Waltham, MA (USA). Dept. of Physics)

1990-10-01T23:59:59.000Z

142

Energy loss spectra of xenon and krypton and their analysis by energy-dependent multichannel quantum defect theory  

Science Journals Connector (OSTI)

Oscillator strengths of xenon and krypton for transitions from the ground state to the optically allowed states forming the five resonance series were measured by means of high energy electron spectroscopy (HE...

J. Geiger

1977-01-01T23:59:59.000Z

143

Energy losses in thermally cycled optical fibers constrained in small bend radii  

SciTech Connect

High energy laser pulses were fired into a 365?m diameter fiber optic cable constrained in small radii of curvature bends, resulting in a catastrophic failure. Q-switched laser pulses from a flashlamp pumped, Nd:YAG laser were injected into the cables, and the spatial intensity profile at the exit face of the fiber was observed using an infrared camera. The transmission of the radiation through the tight radii resulted in an asymmetric intensity profile with one half of the fiber core having a higher peak-to-average energy distribution. Prior to testing, the cables were thermally conditioned while constrained in the small radii of curvature bends. Single-bend, double-bend, and U-shaped eometries were tested to characterize various cable routing scenarios.

Guild, Eric; Morelli, Gregg

2012-09-23T23:59:59.000Z

144

Energy Loss by 8.86-Mev Deuterons and 4.43-Mev Protons  

Science Journals Connector (OSTI)

Using deuterons of average energy 8.86 Mev, the stopping powers relative to air have been measured for the following gases: H2, He, N2, O2, Ne, A, Kr, Xe, CH4, and CO2. Absolute stopping cross sections were measured, using 4.43-Mev protons (of equal velocity) for H2, air, and Kr, and the deuteron results were normalized to give absolute stopping cross sections for all of the gases. Comparison is made with the theoretical results of Aron et al., Walske, and Lindhard and Scharff.It was found that the NaI(Tl) crystal exhibited a nonlinearity in its response curve of light output versus proton or deuteron energy.

J. E. Brolley, Jr. and F. L. Ribe

1955-05-15T23:59:59.000Z

145

Cross sections and energy loss for lepton pair production in muon transport  

E-Print Network (OSTI)

We reevaluate electron-positron pair production from electromagnetic interactions of muons in transit through materials. Our approach, through the use of structure functions for inelastic and elastic scattering and including hadronic recoil, make the formalism useful for tau pair production at high energies. Our results for electron-positron pair production agree well with prior evaluations. Tau pair production, has a significant contribution from inelastic scattering in addition to the usual coherent scattering with the nucleus and scattering with atomic electrons.

A. Bulmahn; M. H. Reno

2008-12-30T23:59:59.000Z

146

Radiation effects in nuclear materials: Role of nuclear and electronic energy losses and their synergy  

SciTech Connect

Ceramic oxides and carbides are promising matrices for the immobilization and/or transmutation of nuclear wastes, cladding materials for gas-cooled fission reactors and structural components for fusion reactors. For these applications there is a need of fundamental data concerning the behavior of nuclear ceramics upon irradiation. This article is focused on the presentation of a few remarkable examples regarding ion-beam modifications of nuclear ceramics with an emphasis on the mechanisms leading to damage creation and phase transformations. Results obtained by combining advanced techniques (Rutherford backscattering spectrometry and channeling, X-ray diffraction, transmission electron microscopy, Raman spectroscopy) concern irradiations in a broad energy range (from keV to GeV) with the aim of exploring both nuclear collision (Sn) and electronic excitation (Se) regimes. Finally, the daunting challenge of the demonstration of the existence of synergistic effects between Sn and Se is tackled by discussing the healing due to intense electronic energy deposition (SHIBIEC) and by reporting results recently obtained in dual-beam irradiation (DBI) experiments.

Thomé, Lionel [Centre de Spectrométrie Nucléaire et de Spectrométrie de Masse, CNRS-IN2P3-Université Paris-Sud; Debelle, Aurelien [Universite Paris Sud, Orsay, France; Garrido, Frederico [Universite Paris Sud, Orsay, France; Mylonas, Stamatis [Universite Paris Sud, Orsay, France; Décamps, B. [Universite Paris Sud, Orsay, France; Bachelet, C. [Universite Paris Sud, Orsay, France; Sattonnay, G. [LEMHE/ICMMO, Université Paris-Sud, Bât. Orsay, France; Moll, Sandra [French Atomic Energy Commission (CEA), Centre de Saclay, Gif sur Yvette; Pellegrino, S. [French Atomic Energy Commission (CEA); Miro, S. [French Atomic Energy Commission (CEA); Trocellier, P. [French Atomic Energy Commission (CEA); Serruys, Y. [French Atomic Energy Commission (CEA); Velisa, G. [French Atomic Energy Commission (CEA); Grygiel, C. [CNRS, France; Monnet, I. [CIMAP, CEA-CNRS-Université de Caen, France; Toulemonde, Marcel [French Atomic Energy Commission (CEA), French National Centre for Scientific Research (CNRS)-ENSICAE; Simon, P. [CEMHTI, CNRS, France; Jagielski, Jacek [Institute for Electronic Materials Technology; Jozwik-Biala, Iwona [Institute for Electronic Materials Technology; Nowicki, Lech [Soltan Institute for Nuclear Studies, Swierk, Poland; Behar, M. [Instituto de Fisica, Universidade Federal do Rio Grande do Sul, Porto Alegre,; Weber, William J [ORNL; Zhang, Yanwen [ORNL; Backman, Marie [University of Tennessee, Knoxville (UTK); Nordlund, Kai [University of Helsinki; Djurabekova, Flyura [University of Helsinki

2013-01-01T23:59:59.000Z

147

Exploration of jet energy loss via direct $?$-charged particle azimuthal correlation measurements  

E-Print Network (OSTI)

The multiplicities of charged particles azimuthally associated with direct photons and $\\pi^{0}$ have been measured for Au+Au, p+p, and d+Au collisions at $\\sqrt{s_{NN}}$ = 200 GeV in the STAR experiment. Charged particles with transverse momentum 0.5 $<$ $p_T^{h^{\\pm}}$ $<$ 16 GeV/c for p+p and d+Au, and 3 $<$ $p_T^{h^{\\pm}}$ $<$ 16 GeV/c for Au+Au and pseudorapidity $\\mid\\eta\\mid$ $\\leq$ 1.5 in coincidence with direct photons and $\\pi^{0}$ of high transverse momentum 8 $<$ $p_T^{\\gamma,\\pi^{0}}$ $<$ 16 GeV/c at $\\mid\\eta\\mid$ $\\leq$ 0.9 have been used for this analysis. Within the considered range of kinematics, the observed suppressions of the associated yields per direct $\\gamma$ in central Au+Au relative to p+p and d+Au are similar and constant with direct photon fractional energy $z_{T}$ ($z_{T}=p_{T}^{h^{\\pm}}/p_{T}^{\\gamma}$). The measured suppressions of the associated yields with direct $\\gamma$ are comparable to those with $\\pi^{0}$. The data are compared to theoretical predictions.

A. M. Hamed

2009-09-25T23:59:59.000Z

148

Detailed study of parton energy loss via measurement of fractional momentum loss of high $p_T$ hadrons in heavy ion collisions  

E-Print Network (OSTI)

PHENIX measurement of the fractional momentum loss ($d p_T/p_T$) of high $p_T$ identified hadrons are presented. The $d p_T/p_T$ of high $p_T$ pizero which are computed from 39GeV Au+Au over to 2.76TeV Pb+Pb are found to vary by a factor of six. We plotted the $d p_T/p_T$ against several global variables, $N_{part}$, $N_{qp}$ and $dN/deta$, and found global features. It was found that 200GeV Au+Au points are merging into the central 2.76TeV Pb+Pb points when plotting $d p_T/p_T$ against $dN/deta$.

Sakaguchi, Takao

2015-01-01T23:59:59.000Z

149

Nuclear and Non-Ionizing Energy-loss of Electrons with Low and Relativistic Energies in Materials and Space Environment  

E-Print Network (OSTI)

The treatment of the electron-nucleus interaction based on the Mott differential cross section was extended to account for effects due to screened Coulomb potentials, finite sizes and finite rest masses of nuclei for electrons above 200 keV and up to ultra high energies. This treatment allows one to determine both the total and differential cross sections, thus, subsequently to calculate the resulting nuclear and non-ionizing stopping powers. Above a few hundreds of MeV, neglecting the effect due to finite rest masses of recoil nuclei the stopping power and NIEL result to be largely underestimated; while, above a few tens of MeV the finite size of the nuclear target prevents a further large increase of stopping powers which approach almost constant values.

Boschini, M J; Gervasi, M; Giani, S; Grandi, D; Ivanchenko, V; Nieminem, P; Pensotti, S; Rancoita, P G; Tacconi, M

2011-01-01T23:59:59.000Z

150

Nuclear and Non-Ionizing Energy-loss of Electrons with Low and Relativistic Energies in Materials and Space Environment  

E-Print Network (OSTI)

The treatment of the electron-nucleus interaction based on the Mott differential cross section was extended to account for effects due to screened Coulomb potentials, finite sizes and finite rest masses of nuclei for electrons above 200 keV and up to ultra high energies. This treatment allows one to determine both the total and differential cross sections, thus, subsequently to calculate the resulting nuclear and non-ionizing stopping powers. Above a few hundreds of MeV, neglecting the effect due to finite rest masses of recoil nuclei the stopping power and NIEL result to be largely underestimated; while, above a few tens of MeV the finite size of the nuclear target prevents a further large increase of stopping powers which approach almost constant values.

M. J. Boschini; C. Consolandi; M. Gervasi; S. Giani; D. Grandi; V. Ivanchenko; P. Nieminem; S. Pensotti; P. G. Rancoita; M. Tacconi

2011-12-06T23:59:59.000Z

151

A TEM study of inverse melting in Nb{sub 45}Cr{sub 55}  

SciTech Connect

Inverse melting of bcc Nb{sub 45}Cr{sub 55} is investigated using transmission electron microscopy, high-resolution TEM and electron diffraction. It is shown that the transformation to the amorphous phase initiates at the bcc grain boundaries. The transformation results in an increase in incoherence, evidenced by a loss of bend contours. Some anisotropy is found in the amorphous phase produced by inverse melting, which is associated in HRTEM with preferentially oriented but discontinuous and distorted fringes. The results are consistent with the production of an amorphous phase by inverse melting.

Sinkler, W.; Michaelsen, C.; Bormann, R. [GKSS Forschungszentrum, Geesthacht (Germany). Inst. for Materials Research

1996-12-31T23:59:59.000Z

152

Characterization of the sp2 bonds network in a-C:H layers with nuclear magnetic resonance, electron energy loss spectroscopy and electron spin resonance  

Science Journals Connector (OSTI)

a-C:H layers prepared at different ion energies have been investigated by several methods including 13C nuclear magnetic resonance (NMR), electron energy loss spectroscopy (EELS) and electron spin resonance (ESR). The sp2 fraction of the samples rose from 27% to about 60 at.% with increasing ion energies from 30 eV to 170 eV. In the EELS spectra of these layers the intensity of the ? ? ?? transition between 4 and 7 eV showed no significant variation. But a shift of the peak is observed from 7 eV to lower energy losses with increasing ion energies indicating an enhanced formation of larger sp2 cluster sizes. This shift is accompanied by a broadening of the energy loss peak, suggesting a broadening of the cluster size distribution. The ESR spectra showed an increase of the spin density by more than one order of magnitude with increasing ion energies. Simultaneously the linewidth of the ESR signal gets narrower. This can also be interpreted as an increasing cluster size from single benzene rings to three and four fused six-fold rings. Hence, the EELS and ESR spectra lead to the same conclusions with respect to the microstructure of the a-C:H network.

R. Kleber; K. Jung; H. Ehrhardt; I. Mühling; K. Breuer; H. Metz; F. Engelke

1991-01-01T23:59:59.000Z

153

Parasitic Energy Losses  

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

2009 DOE Hydrogen Program and Vehicle Technologies Program Annual Merit Review and Peer Evaluation Meeting, May 18-22, 2009 -- Washington D.C.

154

Monitoring Energy Losses  

E-Print Network (OSTI)

MAIN STEAM PRESSURE Increase boiler pressure Close turbine control valves Increase firing rate Pressure limited bV water Quality Referred to Maintenance Referred to Results Other No action taken HIGH REHEAT SUPERHEATER ATTEMPERATION FLOW Soot... MAIN STEAM PRESSURE Increase boiler pressure Close turbine control valves Increase firing rate Pressure limited bV water Quality Referred to Maintenance Referred to Results Other No action taken HIGH REHEAT SUPERHEATER ATTEMPERATION FLOW Soot...

Eulinger, R. D.

155

O K-energy loss near-edge structure change induced by tantalum impurity in monoclinic hafnium oxide  

SciTech Connect

The present paper reports the energy loss near-edge structure (ELNES) study of monoclinic HfO{sub 2} (m-HfO{sub 2}) and tantalum doped m-HfO{sub 2} (Ta{sub 0.1}Hf{sub 0.9}O{sub 2}) thin films prepared by radio frequency magnetron co-sputtering method. A change in the O K-ELNES spectra was observed as the amount of dopant increases. In order to precise the common features and the differences as a function of Ta defect nature (substitutional or interstitial) in HfO{sub 2}, the O K-ELNES were commented with respect to density functional theory calculations implemented in Vienna ab initio simulation package code. The calculated Ta doped HfO{sub 2} band structure showed that substitutional tantalum is the dominant defect and the spectral differences between doped and non-doped HfO{sub 2} are mainly originated from the change in the local cation distribution around the oxygen atoms.

Yang, Mino [Analytical Engineering Group, Samsung Advanced Institute of Technology (SAIT), Samsung Electronics, Youngin-Si, Gyeonggi-Do, 446-712, Korea and School of Advanced Materials Science and Engineering SungKyunKwan University, Suwon 440-746 (Korea, Republic of); Baik, Hionsuck [Korea Basic Science Institute (KBSI), Seoul 136-713 (Korea, Republic of); Ivanovskaya, Viktoria; Colliex, Christian [Laboratoire de Physique des Solides, University Paris-Sud, UMR-CNRS 8502 91405, Orsay (France); Benayad, Anass [Analytical Engineering Group, Samsung Advanced Institute of Technology (SAIT), Samsung Electronics, Youngin-Si, Gyeonggi-Do 446-712 (Korea, Republic of)

2011-03-01T23:59:59.000Z

156

High-tide flight by wintering Dunlins (Calidris alpina): a weather-dependent trade-off between energy loss and predation risk  

E-Print Network (OSTI)

ARTICLE High-tide flight by wintering Dunlins (Calidris alpina): a weather-dependent trade-off between energy loss and predation risk Dick Dekker Abstract: Migratory shorebirds wintering or staging on ocean coasts collect at high tide on roosting sites that remain above the flood line. However, some

157

A general elementary proof for the momentum–energy relationship, p=E/c, for a pulse on a loss-free transmission line  

Science Journals Connector (OSTI)

The impulse delivered to the resistively terminated end of a loss-free transmission line is found independently of the geometry of the line using elementary physics with an elementary application of the method of virtual work. The results correspond to the momentum–energy association p=E/c.

M. C. Whatley

2000-01-01T23:59:59.000Z

158

The near-edge structure in energy-loss spectroscopy: many-electron and magnetic effects in transition metal nitrides and carbides  

E-Print Network (OSTI)

in transition metal nitrides and carbides This article has been downloaded from IOPscience. Please scroll down-loss spectroscopy: many-electron and magnetic effects in transition metal nitrides and carbides A T Paxton, M van energies are systematically overestimated by 4.22 ± 0.44 eV in twelve transition metal carbides

Paxton, Anthony T.

159

Atomic Resolution Coordination Mapping in Ca2FeCoO5 Brownmillerite by Spatially Resolved Electron Energy-Loss Spectroscopy  

Science Journals Connector (OSTI)

Using a combination of high-angle annular dark field scanning transmission electron microscopy and atomically resolved electron energy-loss spectroscopy at high energy resolution in an aberration-corrected electron microscope, we demonstrate the capability of coordination mapping in complex oxides. ... (b) Survey image indicating the area used for octahedral (red) and tetrahedral (blue) data summation (3 pixel width). ... B atoms that have energetic preference for tetrahedral coordination geometry are esp. ...

Stuart Turner; Johan Verbeeck; Farshid Ramezanipour; John E. Greedan; Gustaaf Van Tendeloo; Gianluigi A. Botton

2012-04-25T23:59:59.000Z

160

Energy Loss of Neutrinos in 20 M{sub {center_dot}} and 40 M{sub {center_dot}} Massive Stars  

SciTech Connect

The progress from the theoretical and experimental aspects in neutrino physics shines light into neutrino physics as well as in astrophysics. It is known that when neutrinos pass through a medium, the neutrinos interact with electrons before emerging from the stars with an effective potential energy produced due to coherent forward scatterings that occurred in the medium. This potential engenders significant changes in the neutrino masses and their mixing in the medium. Thus electron neutrinos would oscillate into different mass eigenstate and this is dependent on the energy of the neutrinos. Some of the energy will be lost in the coherent scattering with the electrons by the charged current interaction. We have calculated the energy loss of the neutrinos by using a stopping power equation for both rotating and non-rotating 20 M{sub {center_dot}} and 40 M{sub {center_dot}} stars. The total energy loss of neutrinos depends on the electron density in the stars and on the survival probability of the electron neutrino. For high electron density profile and the survival probability, the energy loss will be significant.

Sofiah Ahmad, Nor; Yusof, Norhasliza; Abu Kassim, Hasan [Department of Physics, University of Malaya, 50603 Kuala Lumpur (Malaysia)

2011-03-30T23:59:59.000Z

Note: This page contains sample records for the topic "tem energy losses" 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

A comprehensive power loss, efficiency, reliability and cost calculation of a 1 MW/500 kWh battery based energy storage system for frequency regulation application  

Science Journals Connector (OSTI)

Abstract Battery based energy storage system (ESS) has tremendous diversity of application with an intense focus on frequency regulation market. An ESS typically comprised of a battery and a power conversion system. A calculation of performance parameters is performed in this research. The aim is to formulate an in-depth analysis of the ESS in terms of power losses of the semiconductor and electrical devices, efficiency, reliability and cost which would foster various research groups and industries around the globe to improve their future product. In view of this, a relation between the operating conditions and power losses is established to evaluate the efficiency of the system. The power loss calculation presented in this paper has taken into account the conduction and switching losses of the semiconductor devices. Afterwards, the Arrhenius Life Stress relation is adopted to calculate the reliability of the system by considering temperature as a covariate. And finally, a cost calculation is executed and presented as a percentage of total cost of the ESS. It has been found that the power loss and efficiency of the ESS at rated power is 146 kW and 85% respectively. Furthermore, the mean time between failures of the ESS is 8 years and reliability remains at 73% after a year. The major cost impact observed is for battery and PCS as 58% and 16% respectively. Finally, it has been determined that further research is necessary for higher efficient and lower cost system for high penetration of energy storage system in the market.

Md Arifujjaman

2015-01-01T23:59:59.000Z

162

Vehicle Technologies Office: Parasitic Loss Reduction | Department...  

Energy Savers (EERE)

losses can account for an approximate 45% decrease in efficiency. Other sources of energy loss include: friction and wear in the power train, thermal (heat) loads, operation of...

163

Electron Thermal Transport in Tokamak: ETG or TEM Turbulences?  

E-Print Network (OSTI)

Electron Thermal Transport in Tokamak: ETG or TEM Turbulences? Z. Lin, L. Chen, Y. Nishimura, H. Qu studies of electron transport in tokamak including: (1) electron temperature gradient turbulence; (2) trapped electron mode turbulence; and (3) a new finite element solver for global electromagnetic

Zonca, Fulvio

164

The structures of CO, NO and benzene on various transition metal surfaces: Overview of LEED (low-energy electron diffraction) and HREELS (high-resolution electron energy loss) results  

SciTech Connect

Recent results are summarized concerning the adsorption structures of carbon monoxide (CO) and nitric oxide (NO) chemisorbed on various transition metal surfaces, and of benzene (C6H6) on Pd, Rh and Pt(111). These results were for the most part obtained with intensity analysis of low-energy electron diffraction (LEED) and high-resolution electron energy loss spectroscopy (HREELS).

Ohtani, H.; Van Hove, M.A.; Somorjai, G.A.

1987-06-01T23:59:59.000Z

165

Energy-Loss Spectra and Collision Cross Sections for Impact of 20-120-keV Positive Ions on Molecular Nitrogen  

Science Journals Connector (OSTI)

Inelastic energy-loss spectra induced by impact of H+, H2+, and Ar+ on N2 have been measured at incident ion energies of 20-120 keV, with an energy resolution of about 2 eV. Prominent peaks are observed at energy losses of 9.5 and 13.8 eV. The first of these is well resolved and is attributed to excitation of the Lyman-Birge-Hopfield (LBH) system of N2. The peak at 13.8 eV is believed due primarily to excitation of the b?u1 band of the Worley-Jenkins series. The locations of these features on the energy-loss scale do not agree with results of the electron impact work of others and, in general, show trends with projectile velocity that are consistent with an assumed enhancement of excitation to higher vibrational states with the heavier particles. Collision cross sections for excitation of the two peaks are presented, as well as the total ionization cross section and the cross section for total inelastic processes in the case of proton impact.

F. D. Schowengerdt and John T. Park

1970-03-01T23:59:59.000Z

166

Photo-induced Charge Separation across the Graphene–TiO2 Interface Is Faster than Energy Losses: A Time-Domain ab Initio Analysis  

Science Journals Connector (OSTI)

This fact can be used to avoid energy and voltage losses to heat. ... Figure 3a presents the situation in which the PE state density is distributed equally between the graphene sheet and the TiO2 surface. ... The inhomogeneous distribution of the PE state energy owing to thermal fluctuations is much smaller than the graphene excitation energy or the TiO2 band gap; however, this has an obvious influence on the position of the donor state vis-à-vis the acceptor states. ...

Run Long; Niall J. English; Oleg V. Prezhdo

2012-08-10T23:59:59.000Z

167

Improvements in the computation of balances and localization of commercial losses of electric energy in 0.38-kV networks  

SciTech Connect

An example of four 0.38-kV overhead distribution lines fed from a 10/0.4-kV transformer substation of the Grodno Electrical Networks (Belarus') and supplying electricity to a cottage area is used for analyzing energy balances and commercial losses in the networks. It is shown that the reliability of such analysis can be ensured by the use of modern software and electronic energy meters recording a retrospective of half-hourly intervals of active and reactive electric energy.

Vorotnitskii, V. Z.; Zaslonov, S. V.; Lysyuk, S. S. [Electric Power Research Institute (VNIIE) (Russian Federation)

2006-11-15T23:59:59.000Z

168

VOLUME 86, NUMBER 20 P H Y S I C A L R E V I E W L E T T E R S 14 MAY 2001 Energy Loss of Fast Quarks in Nuclei  

E-Print Network (OSTI)

the effect of initial-state energy loss and shadowing on the nuclear-dependence ratios versus the incident proton's momentum fraction and dimuon effective mass. The resulting energy loss per unit path length is 2 traveling in a nuclear environment. DOI: 10.1103/PhysRevLett.86.4483 PACS numbers: 24.85.+p, 13.85.Qk, 25

169

Advances in sealed liquid cells for in-situ TEM electrochemial investigation of lithium-ion battery  

Science Journals Connector (OSTI)

Abstract Lithium-ion battery (LIB) technology is currently the most important and promising energy storage technology that has captured the portable electronic market, invaded the power tool equipment market, and penetrated the electric vehicle market. The ever-growing demand for its energy capacity necessitates the understanding of (de)lithiation mechanism on a nanoscale, and thus the development of platforms enabling in-situ electrochemical TEM characterization. Sealed liquid cell (SLC) device has been widely recognized as the most desirable platform, since it allows the introduction of commercial volatile electrolytes into TEM. However, a comprehensive review summarizing the current development of \\{SLCs\\} for in-situ TEM LIB research is missing and in urgent need for its benign development. This review article aims to fill this gap.

Fan Wu; Nan Yao

2015-01-01T23:59:59.000Z

170

AFTER A Framework for electrical power sysTems vulnerability  

Open Energy Info (EERE)

AFTER A Framework for electrical power sysTems vulnerability AFTER A Framework for electrical power sysTems vulnerability identification, dEfense and Restoration (Smart Grid Project) (Norway) Jump to: navigation, search Project Name AFTER A Framework for electrical power sysTems vulnerability identification, dEfense and Restoration Country Norway Coordinates 60.472023°, 8.468946° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":60.472023,"lon":8.468946,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

171

The relationship between maximum tolerated light intensity and photoprotective energy dissipation in the photosynthetic antenna: chloroplast gains and losses  

Science Journals Connector (OSTI)

...Zeaxanthin synthesis, energy dissipation, and photoprotection...1987 Physiological factors associated with fluorescence...Modulation of photosynthetic energy conversion efficiency in nature...photosystem II thermal energy dissipation on transfer...

2014-01-01T23:59:59.000Z

172

The relationship between maximum tolerated light intensity and photoprotective energy dissipation in the photosynthetic antenna: chloroplast gains and losses  

Science Journals Connector (OSTI)

...tolerated light intensity and photoprotective energy dissipation in the photosynthetic antenna...photoinhibition by non-photochemical energy dissipation (NPQ) has been recently...membrane. protective non-photochemical energy dissipation|thylakoid membrane|photosystem...

2014-01-01T23:59:59.000Z

173

Energy and Society (ER100/PP184/ER200/PP284) Fall 2014 Topics: Thermodynamics of energy systems; Power Loss; Peak Oil; Energy economics. Problem Set #3  

E-Print Network (OSTI)

's campus features a combined heat and power (CHP) energy system. This power (electricity) stationCourse), Student ID, Course # (ER100 etc), Discussion Section (101-110) Combined-Cycle Power Plant 1. UC Berkeley is a combined-cycle: a 21.35 MW natural gas turbine (Brayton cycle) and a 5.0 MW steam- powered, bottoming

Kammen, Daniel M.

174

Differential measurements of ionization and inelastic energy losses in 0.25—3.0-MeV collisions of Kr ions with Kr and Xe targets  

Science Journals Connector (OSTI)

The final charge states of the scattered ions and the inelastic energy losses have been measured for single collisions of 0.25—3.0-MeV Kr ions with Kr and Xe targets. The charge states of the scattered ions were measured as functions of scattering angle (from 0.8° to 45°) ion energies from 0.25 to 3.0 MeV. The total inelastic energy losses were measured using the scattered- and recoil-particle coincidence technique for 0.4-, 0.6-, and 1.0-MeV Kr+-Kr collision energies and from 0.4 to 1.4 MeV for the Kr+-Xe combination. The results show the impact-parameter dependence of several inner-shell excitations and confirm the quasimolecular nature of heavy-ion—atom collisions within the framework of the Fano-Lichten model. For the Kr-Kr case, excitations are observed for values of the distance of closest approach, R0, of 0.40, 0.30, and 0.20 Å; and for the Kr-Xe case, excitations are observed at R0 values of 0.28, 0.18, and 0.09 Å. The data show agreement with the molecular-potential calculations of Eichler and co-workers.

Ali A. Antar and Quentin C. Kessel

1984-03-01T23:59:59.000Z

175

Energy Loss of Solar $p$ Modes due to the excitation of Magnetic Sausage Tube Waves: Importance of Coupling the Upper Atmosphere  

E-Print Network (OSTI)

We consider damping and absorption of solar $p$ modes due to their energy loss to magnetic tube waves that can freely carry energy out of the acoustic cavity. The coupling of $p$ modes and sausage tube waves is studied in a model atmosphere composed of a polytropic interior above which lies an isothermal upper atmosphere. The sausage tube waves, excited by $p$ modes, propagate along a magnetic fibril which is assumed to be a vertically aligned, stratified, thin magnetic flux-tube. The deficit of $p$-mode energy is quantified through the damping rate, $\\Gamma$ and absorption coefficient, $\\alpha$. The variation of $\\Gamma$ and $\\alpha$ as a function of frequency and the tube's plasma properties is studied in detail. Previous similar studies have considered only a subphotospheric layer, modelled as a polytrope that has been truncated at the photosphere (Bogdan et al. (1996), Hindman & Jain 2008, Gascoyne et al. (2011)). Such studies have found that the resulting energy loss by the $p$ modes is very sensitiv...

Gascoyne, Andrew; Hindman, Bradley

2014-01-01T23:59:59.000Z

176

Mean ranges and energy-loss of 86Kr in aluminium, and 238U in hostaphan polymer, by a nuclear track technique  

Science Journals Connector (OSTI)

CR-39 track detectors have been used to measure mean ranges and energy-loss of 17.7 MeV amu-186Kr in aluminium, and 16.34 MeV amu-1238U in Hostaphan. The nuclear track technique employed in this work has been described in brief. The accuracy of measurement has been evaluated and is presented in this paper. Experimental range data are compared with theoretical values obtained from four different sources. The significance and scope of the work is discussed.

Atul Saxena; K.K. Dwivedi

1990-01-01T23:59:59.000Z

177

Influence of the gap-target configuration on the measured energy loss of C-ions in Ar-gas and -plasma  

Science Journals Connector (OSTI)

Plasma targets for measuring energy loss and charge state distribution of heavy ions in non-ideal Ar-plasmas ( ? -parameters 0.55–1.5) have been developed and the interaction with several ion species, C, Ar, Xe at 5.9 MeV / u , was studied. Here the results for 5.9 MeV / u C-ions are presented which have been understood just recently by considering the gas dynamics in the target due to the special configuration with the gap interaction zone for the plasma, which can be also simulated by the VarJet code.

K. Weyrich; H. Wahl; A. Golubev; A. Kantsyrev; M. Kulish; S. Dudin; D.H.H. Hoffmann; B. Sharkov; V. Mintsev

2007-01-01T23:59:59.000Z

178

AFTER A Framework for electrical power sysTems vulnerability  

Open Energy Info (EERE)

vulnerability vulnerability identification, dEfense and Restoration (Smart Grid Project) (United Kingdom) Jump to: navigation, search Project Name AFTER A Framework for electrical power sysTems vulnerability identification, dEfense and Restoration Country United Kingdom Coordinates 55.378052°, -3.435973° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":55.378052,"lon":-3.435973,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

179

AFTER A Framework for electrical power sysTems vulnerability  

Open Energy Info (EERE)

Czech Czech Republic) Jump to: navigation, search Project Name AFTER A Framework for electrical power sysTems vulnerability identification, dEfense and Restoration Country Czech Republic Coordinates 49.817493°, 15.472962° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":49.817493,"lon":15.472962,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

180

AFTER A Framework for electrical power sysTems vulnerability  

Open Energy Info (EERE)

Ireland) Ireland) Jump to: navigation, search Project Name AFTER A Framework for electrical power sysTems vulnerability identification, dEfense and Restoration Country Ireland Coordinates 53.41291°, -8.24389° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":53.41291,"lon":-8.24389,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

Note: This page contains sample records for the topic "tem energy losses" from the National Library of EnergyBeta (NLEBeta).
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181

AFTER A Framework for electrical power sysTems vulnerability  

Open Energy Info (EERE)

Belgium) Belgium) Jump to: navigation, search Project Name AFTER A Framework for electrical power sysTems vulnerability identification, dEfense and Restoration Country Belgium Coordinates 50.359482°, 4.63623° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":50.359482,"lon":4.63623,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

182

Energy Cascades and Loss of Balance in a Re-entrant Channel Forced by Wind Stress and Buoyancy Fluxes  

Science Journals Connector (OSTI)

A large fraction of the kinetic energy in the ocean is stored in the ‘quasi-geostrophic’ eddy field. This ‘balanced’ eddy field is expected, according to geostrophic turbulence theory, to transfer energy to larger scales. In order for the general ...

Roy Barkan; Kraig B. Winters; Stefan G. Llewellyn Smith

183

Energy Losses Due to Vortex Shedding from the Lower Edge of a Vertical Plate Attacked by Surface Waves  

Science Journals Connector (OSTI)

...Vertical Plate Attacked by Surface Waves M. Stiassnie E. Naheer Irina Boguslavsky...The ratio between the flux of the energy taken out by the vortex generation process , and the incoming wave energy flux , is shown to be given by where...

1984-01-01T23:59:59.000Z

184

Enabling direct nanoscale observations of biological reactions with dynamic TEM  

SciTech Connect

Biological processes can occur over a wide range of spatial and temporal scales; from femtoseconds to hours and from angstroms to meters. Although no single experimental method can fully cover this entire phase space, many new biological insights can be expected from a better understanding of the processes that occur on the very fast timescales and very small length scales. In this regard, new instruments that use fast x-ray or electron pulses are now available that are expected to reveal new mechanistic insights for macromolecular protein dynamics. To ensure that any observed conformational change is physiologically relevant and not constrained by three-dimensional crystal packing, it would be preferable for experiments to utilize smaller protein samples such as single particles or two-dimensional crystals that mimic the target protein’s native environment. These samples aren’t typically amenable to x-ray analysis, but transmission electron microscopy has successfully imaged such sample geometries for over 40 years and permits data acquisition using both direct imaging and diffraction modes. While conventional transmission electron microscopes (TEM) have only visualized biological samples with atomic resolution in an arrested or frozen state, the recent development of the dynamic TEM (DTEM) extends electron microscopy capabilities into dynamics. A new 2nd generation DTEM that is currently being constructed has the potential to observe live biological processes with unprecedented spatiotemporal resolution by using pulsed electron packets to probe the sample on the micro- and nanosecond timescale. In addition to the enhanced temporal resolution, the DTEM also operates in the pump-probe regime that can permit visualizing reactions propagating in real-time. This article reviews the experimental parameters necessary for coupling DTEM with in situ liquid microscopy to allow direct imaging of protein conformational dynamics in a fully hydrated environment.

Evans, James E.; Browning, Nigel D.

2013-02-18T23:59:59.000Z

185

VOLUME 86, NUMBER 20 P HY S I CA L R E V I E W L E T T E R S 14 MAY 2001 Energy Loss of Fast Quarks in Nuclei  

E-Print Network (OSTI)

the effect of initial­state energy loss and shadowing on the nuclear­dependence ratios versus the incident proton's momentum fraction and dimuon effective mass. The resulting energy loss per unit path length is 2 traveling in a nuclear environment. DOI: 10.1103/PhysRevLett.86.4483 PACS numbers: 24.85.+p, 13.85.Qk, 25

186

Soil loss and leaching, habitat destruction, land and water demand in energy-crop monoculture: some quantitative limits  

SciTech Connect

The environmental impacts of growing biomass for energy, especially for liquid automotive fuels, are potentially large. They are sensitive to the low power production per unit area (high land requirement) and to net energy balances. Initial quantitative estimates were made for impacts per unit power within several classes of impacts, and conversely, for limits to power produced if one avoids worst-class impacts. The following types of biomass energy technologies are considered: ethanol and methanol from grains and residues (temperate zone); jojoba wax (semi-tropical); ethanol from sugar cane and root crops (tropics); and silviculture for methanol via gasification.

Gutschick, V.P.

1981-01-01T23:59:59.000Z

187

Indicators of the Transformation Sector, Distribution Losses and Foreign Trade in Derived Energy Products in the Member States  

Science Journals Connector (OSTI)

The analysis of the transformation sector includes all the subsectors listed in the Energy Statistics Yearbook of EUROSTAT. As far as national data were available, the analysis also includes combined heat and ...

Dr. Tihomir Morovi?; Franz-Josef Gründing…

1987-01-01T23:59:59.000Z

188

Energy Loss of Solar p Modes due to the Excitation of Magnetic Sausage Tube Waves: Importance of Coupling the Upper Atmosphere  

Science Journals Connector (OSTI)

We consider damping and absorption of solar p modes due to their energy loss to magnetic tube waves that can freely carry energy out of the acoustic cavity. The coupling of p modes and sausage tube waves is studied in a model atmosphere composed of a polytropic interior above which lies an isothermal upper atmosphere. The sausage tube waves, excited by p modes, propagate along a magnetic fibril which is assumed to be a vertically aligned, stratified, thin magnetic flux tube. The deficit of p-mode energy is quantified through the damping rate, ?, and absorption coefficient, ?. The variation of ? and ? as a function of frequency and the tube's plasma properties is studied in detail. Previous similar studies have considered only a subphotospheric layer, modeled as a polytrope that has been truncated at the photosphere. Such studies have found that the resulting energy loss by the p modes is very sensitive to the upper boundary condition, which, due to the lack of an upper atmosphere, have been imposed in a somewhat ad hoc manner. The model presented here avoids such problems by using an isothermal layer to model the overlying atmosphere (chromosphere, and, consequently, allows us to analyze the propagation of p-mode-driven sausage waves above the photosphere. In this paper, we restrict our attention to frequencies below the acoustic cut off frequency. We demonstrate the importance of coupling all waves (acoustic, magnetic) in the subsurface solar atmosphere with the overlying atmosphere in order to accurately model the interaction of solar f and p modes with sausage tube waves. In calculating the absorption and damping of p modes, we find that for low frequencies, below ?3.5 mHz, the isothermal atmosphere, for the two-region model, behaves like a stress-free boundary condition applied at the interface (z = –z 0).

A. Gascoyne; R. Jain; B. W. Hindman

2014-01-01T23:59:59.000Z

189

Impact of the energy loss spatial profile and shear viscosity to entropy density ratio for the Mach cone vs. head shock signals produced by a fast moving parton in a quark-gluon plasma  

E-Print Network (OSTI)

We compute the energy and momentum deposited by a fast moving parton in a quark-gluon plasma using linear viscous hydrodynamics with an energy loss per unit length profile proportional to the path length and with different values of the shear viscosity to entropy density ratio. We show that when varying these parameters, the transverse modes still dominate over the longitudinal ones and thus energy and momentum is preferentially deposited along the head-shock, as in the case of a constant energy loss per unit length profile and the lowest value for the shear viscosity to entropy density ratio.

Alejandro Ayala; Jorge David Castano-Yepes; Isabel Dominguez; Maria Elena Tejeda-Yeomans

2014-12-18T23:59:59.000Z

190

Development of natural and synthetic DNA probes for OXA-2 and TEM-1 beta-lactamases.  

Science Journals Connector (OSTI)

...Article Development of natural and synthetic DNA probes for OXA-2 and TEM-1...polymorphism. Development of natural and synthetic DNA probes for OXA-2 and TEM-1...5 Development of Natural and Synthetic DNA Probes for OXA-2 and TEM-1...

M Boissinot; J Mercier; R C Levesque

1987-05-01T23:59:59.000Z

191

Evaluating Transformer Losses  

E-Print Network (OSTI)

and replacing them with low loss units. Today few industrials evaluate losses on either power or distribution transformers. TRANSFORMER LOSSES Transformer losses are divided 'nto load losses and no-load losses. Load losses are due to the winding resista... therefore are a function of the load squared. No-load losses occur from energizing the transformer steel and fore are continuous regardless of the transformer load. TRANSFORMER DESIGN Both types of losses are a fun ce here ion of design. If losses...

Grun, R. L. Jr.

192

Compositional and Structural Characterization by TEM of Lattice-Mismatched III-V Epilayers  

SciTech Connect

We discuss compositional and structural transmission electron microscopy (TEM) characterization of lattice-mismatched (LMM) III-V epilayers grown on GaAs by metalorganic chemical vapor deposition (MOCVD), with possible applications in high-efficiency multijunction solar cells. In addition to the use of TEM imaging to survey layer thicknesses and defect morphology, our analysis emphasizes the particular methods of energy-dispersive X-ray spectrometry (EDX) and convergent-beam electron diffraction (CBED). Outlined here is a standards-based method for extracting compositions by EDX, which uses principal-component analysis (PCA) [1], combined with the zeta-factor approach of Watanabe and Williams [2]. A procedure is described that uses the coordinates of high-order Laue zone (HOLZ) lines, which are found in the bright-field disks of CBED patterns, to extract composition and strain parameters from embedded epilayers. The majority of the crystal growth for this work was performed at NREL, which has accommodated the development at SDSM&T of the characterization techniques described. However, epilayer deposition capability at SDSM&T has recently been achieved, using a home-built system, which is presently being used to examine new lattice-mismatched structures relevant to photovoltaic technology.

Ahrenkiel, S. P.; Rathi, M.; Nesheim, R.; Zheng, N.; Vunnam, S.; Carapella, J. J.; Wanlass, M. W.

2011-01-01T23:59:59.000Z

193

Real-time study of the adiabatic energy loss in an atomic collision with a metal cluster  

E-Print Network (OSTI)

, microelectronics, and environmental chem- istry. In recent years a lot of interest has arisen in the role of small, it is well known that a dominant source of nuclear energy dissipation is through the excitation process of a hydrogen atom moving towards or on a metal surface. The effect of electronic dissipation

Baer, Roi

194

IEEE TRANSACTIONS ON ENERGY CONVERSION, VOL. 20, NO. 1, MARCH 2005 121 Minimization of Iron Losses of Permanent  

E-Print Network (OSTI)

forced many manu- facturers to address the problem of improving the efficiency of electrical motors magnet machines, synchronous machines. I. INTRODUCTION ELECTRIC motor-driven equipment utilizes approximately 58% of the consumed electrical energy [1]. Of this elec- trical motor usage, 93% is consumed

Mi, Chunting "Chris"

195

Accounting for beta-particle energy loss to cortical bone via paired-image radiation transport (PIRT)  

SciTech Connect

Current methods of skeletal dose assessment in both medical physics (radionuclide therapy) and health physics (dose reconstruction and risk assessment) rely heavily on a single set of bone and marrow cavity chord-length distributions in which particle energy deposition is tracked within an infinite extent of trabecular spongiosa, with no allowance for particle escape to cortical bone. In the present study, we introduce a paired-image radiation transport (PIRT) model which provides a more realistic three-dimensional (3D) geometry for particle transport in the skeletal site at both microscopic and macroscopic levels of its histology. Ex vivo CT scans were acquired of the pelvis, cranial cap, and individual ribs excised from a 66-year male cadaver (BMI of 22.7 kg m{sup -2}). For the three skeletal sites, regions of trabecular spongiosa and cortical bone were identified and segmented. Physical sections of interior spongiosa were taken and subjected to microCT imaging. Voxels within the resulting microCT images were then segmented and labeled as regions of bone trabeculae, endosteum, active marrow, and inactive marrow through application of image processing algorithms. The PIRT methodology was then implemented within the EGSNRC radiation transport code whereby electrons of various initial energies are simultaneously tracked within both the ex vivo CT macroimage and the CT microimage of the skeletal site. At initial electron energies greater than 50-200 keV, a divergence in absorbed fractions to active marrow are noted between PIRT model simulations and those estimated under existing techniques of infinite spongiosa transport. Calculations of radionuclide S values under both methodologies imply that current chord-based models may overestimate the absorbed dose to active bone marrow in these skeletal sites by 0% to 27% for low-energy beta emitters ({sup 33}P, {sup 169}Er, and {sup 177}Lu), by {approx}4% to 49% for intermediate-energy beta emitters ({sup 153}Sm, {sup 186}Re, and {sup 89}Sr), and by {approx}14% to 76% for high-energy beta emitters ({sup 32}P, {sup 188}Re, and {sup 90}Y). The PIRT methodology allows for detailed modeling of the 3D macrostructure of individual marrow-containing bones within the skeleton thus permitting improved estimates of absorbed fractions and radionuclide S values for intermediate-to-high energy beta emitters.

Shah, Amish P.; Rajon, Didier A.; Patton, Phillip W.; Jokisch, Derek W.; Bolch, Wesley E. [Department of Biomedical Engineering and Department of Nuclear and Radiological Engineering, University of Florida, Gainesville, Florida 32611 (United States); Deparment of Neurosurgery, University of Florida, Gainesville, Florida 32611 (United States); Department of Health Physics, University of Nevada-Las Vegas, Las Vegas, Nevada (United States); Department of Physics and Astronomy, Francis Marion University, Florence, South Carolina 29501-0547 (United States); Department of Biomedical Engineering and Department of Nuclear and Radiological Engineering, University of Florida, Gainesville, Florida 32611 (United States)

2005-05-01T23:59:59.000Z

196

GRIEF AND LOSS COUNSELLING AND  

E-Print Network (OSTI)

LEARN TO UNDERSTAND GRIEF AND LOSS COUNSELLING AND PSYCHOLOGICAL SERVICES (CAPS) #12;The death be tired with no energy or feel sick in the stomach and have headaches. People experiencing grief after

Viglas, Anastasios

197

Dynamics of oxygen in the YBa2Cu3O7-x basal planes by elastic-energy-loss measurements  

Science Journals Connector (OSTI)

We report elastic-energy-dissipation measurements in YBa2Cu3O7-x from 50 to 300 K at frequencies between 0.48 and 6.3 kHz. It is shown unambiguously that the two peaks around Tc are thermally activated with activation energies of 0.16 and 0.19 eV. When oxygen is reduced to about 6.5 atoms per formula unit, the higher-temperature process nearly disappears, while the other one increases. The peaks are interpreted in terms of jumps of the O atoms in the Cu-O basal planes, and two mechanisms are proposed and discussed: short jumps between the off-center positions in the chains and jumps between O(4) and O(5) positions of isolated atoms in hypothetical oxygen-depleted islands of the orthorhombic basal planes.

G. Cannelli; R. Cantelli; F. Cordero; M. Ferretti; L. Verdini

1990-11-01T23:59:59.000Z

198

Simulated Real-World Energy Impacts of a Thermally Sensitive Powertrain Considering Viscous Losses and Enrichment (Presentation)  

SciTech Connect

It is widely understood that cold-temperature engine operation negatively impacts vehicle fuel use due to a combination of increased friction (high-viscosity engine oil) and temporary enrichment (accelerated catalyst heating). However, relatively little effort has been dedicated to thoroughly quantifying these impacts across a large number of driving cycles and ambient conditions. This work leverages high-quality dynamometer data collected at various ambient conditions to develop a modeling framework for quantifying engine cold-start fuel penalties over a wide array of real-world usage profiles. Additionally, mitigation strategies including energy retention and exhaust heat recovery are explored with benefits quantified for each approach.

Wood, E.; Gonder, J.; Lopp, S.; Jehlik, F.

2014-09-01T23:59:59.000Z

199

Towards predictive modeling of near-edge structures in electron energy-loss spectra of AlN-based ternary alloys  

Science Journals Connector (OSTI)

Although the analysis of electron energy loss near-edge structure provides a tool for experimentally probing the density of unoccupied states, a detailed comparison with simulations is necessary in order to understand the origin of individual peaks. This paper presents a density functional theory based technique for predicting the N K edge for ternary (quasibinary) nitrogen alloys by adopting a core hole approach, a methodology that has been successful for binary nitride compounds. It is demonstrated that by using the spectra of binary compounds for optimizing the core hole charge (0.35?e for cubic Ti1-xAlxN and 0.45?e for wurtzite AlxGa1-xN), the predicted spectra evolutions of the ternary alloys agree well with the experiments. The spectral features are subsequently discussed in terms of the electronic structure and bonding of the alloys.

D. Holec; R. Rachbauer; D. Kiener; P. D. Cherns; P. M. F. J. Costa; C. McAleese; P. H. Mayrhofer; C. J. Humphreys

2011-04-20T23:59:59.000Z

200

Microstructure of highly strained BiFeO{sub 3} thin films: Transmission electron microscopy and electron-energy loss spectroscopy studies  

SciTech Connect

Microstructure and electronic structure of highly strained bismuth ferrite (BiFeO{sub 3}) thin films grown on lanthanum aluminate substrates are studied using high-resolution transmission and scanning transmission electron microscopies and electron energy loss spectroscopy (EELS). Monoclinic and tetragonal phases were observed in films grown at different temperatures, and a mix of both phases was detected in a film grown at intermediate temperature. In this film, a smooth transition of the microstructure was found between the monoclinic and the tetragonal phases. A considerable increase in the c-axis parameters was observed in both phases compared with the rhombohedral bulk phase. The off-center displacement of iron (Fe) ions was increased in the monoclinic phase as compared with the tetragonal phase. EEL spectra show different electronic structures in the monoclinic and the tetragonal phases. These experimental observations are well consistent with the results of theoretical first-principle calculations performed.

Heon Kim, Young, E-mail: young.h.kim@kriss.re.kr [Max Planck Institute of Microstructure Physics, Weinberg 2, D-06120 Halle (Germany); Korea Research Institute of Standards and Science (KRISS), Daejeon 305-340 (Korea, Republic of); Bhatnagar, Akash; Pippel, Eckhard; Hesse, Dietrich [Max Planck Institute of Microstructure Physics, Weinberg 2, D-06120 Halle (Germany); Alexe, Marin [Max Planck Institute of Microstructure Physics, Weinberg 2, D-06120 Halle (Germany); University of Warwick, Coventry CV4 7AL, West Midlands (United Kingdom)

2014-01-28T23:59:59.000Z

Note: This page contains sample records for the topic "tem energy losses" 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

High-resolution electron-energy-loss spectroscopy and photoelectron-diffraction studies of the geometric structure of adsorbates on single-crystal metal surfaces  

SciTech Connect

Two techniques which have made important contributions to the understanding of surface phenomena are high resolution electron energy loss spectroscopy (EELS) and photoelectron diffraction (PD). EELS is capable of directly measuring the vibrational modes of clean and adsorbate covered metal surfaces. In this work, the design, construction, and performance of a new EELS spectrometer are described. These results are discussed in terms of possible structures of the O-Cu(001) system. Recommendations for improvements in this EELS spectrometer and guidelines for future spectrometers are given. PD experiments provide accurate quantitative information about the geometry of atoms and molecules adsorbed on metal surfaces. The technique has advantages when used to study disordered overlayers, molecular overlayers, multiple site systems, and adsorbates which are weak electron scatterers. Four experiments were carried out which exploit these advantages.

Rosenblatt, D.H.

1982-11-01T23:59:59.000Z

202

Energy loss, range, path length, time-of-flight, straggling, multiple scattering, and nuclear interaction probability: In two parts. Part 1. For 63 compounds Part 2. For elements 1 ? Z ? 92  

Science Journals Connector (OSTI)

Extensive tables have been prepared of the mean energy loss, pathlength, range, multiple scattering, pathlength straggling, time-of-flight, and nonelastic collision probability for protons of energy from 1 keV through 10 GeV in all elements having atomic number from 1 through 92, and in many compounds and mixtures. Emphasis has been placed on obtaining accurate results, particularly in the difficult low-energy and high-atomic-number regions. The accuracies of all proton range-energy parameters are tabulated. The energy loss below 20 keV was found by normalizing theoretical expressions for the ionization, excitation, and nuclear contributions to known values at 20 keV. The energy loss between 20 keV and 1.0 MeV was obtained by statistically evaluating the accuracy of the available experimental information and then performing least-squares curve fits. Above 1.0 MeV, the Bethe equation with all necessary corrections was used. New values of the adjusted ionization potentials were determined by least-squares-fitting the Bethe equation to all available energy-loss data. The polarization effect was calculated in detail for each material. Path-lengths were calculated by integrating the reciprocal of the energy losses. Ranges were obtained by use of multiple Coulomb scattering theory. The straggling calculations include electronic, elastic nuclear, and charge exchange effects. The literature search was completed in June 1979. Keys for the references used for each element are collected in Table 12. A comparison of the calculational methods used here and in other recent proton range-energy tables is presented in Table 14.

Joseph F. Janni

1982-01-01T23:59:59.000Z

203

Reduce Radiation Losses from Heating Equipment  

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

This tip sheet describes how to save process heating energy and costs by reducing expensive heat losses from industrial heating equipment, such as furnaces.

204

Loan Loss Reserve Fund Program Development  

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

Typically, grantees will work with interested parties or partners to develop a clean energy loan and a loan loss reserve fund program that involves the following steps:

205

Society's dependence on information sys-tems has made cybersecurity an increas-  

E-Print Network (OSTI)

Society's dependence on information sys- tems has made cybersecurity an increas- ingly important to ensure that visualization for cybersecurity reflects the needs of operational environments. In gen- eral

Erbacher, Robert F.

206

Inversion of TEM sounding data using the steepest descent and the conjugate gradients methods  

E-Print Network (OSTI)

for la er conductivities Intensively covered case Figure 2 shows four test models (Ml-M4) and their associated TEM responses used for the two-parameter inversion. For both of the SD and CG methods, the first TEM response was intensively covered... for la er conductivities Intensively covered case Figure 2 shows four test models (Ml-M4) and their associated TEM responses used for the two-parameter inversion. For both of the SD and CG methods, the first TEM response was intensively covered...

Alsabti, Abdallah S

2012-06-07T23:59:59.000Z

207

Adsorbing Viruses onto TEM Grids Jennifer Brum, Tucson Marine Phage Lab  

E-Print Network (OSTI)

1 Adsorbing Viruses onto TEM Grids Jennifer Brum, Tucson Marine Phage Lab October, 2011 Purpose: This protocol describes how to adsorb viruses onto TEM (transmission electron microscopy) grids. The sample is allowed to sit on a hydrophilic grid and viruses adsorb onto the surface of the grid. This technique

Sullivan, Matthew B.

208

AFM and TEM observations of -helix to ß-sheet conformational change occurring on carbon nanotubes  

Science Journals Connector (OSTI)

......the composite monolayer for TEM observation, a copper micro-grid supporting a carbon-coated film was dropped onto the...composite monolayer was transferred onto the copper micro-grid. TEM observations at accelerating voltages of 100-300......

Yukihiro Sugiyama; Yuji Inoue; Eiro Muneyuki; Hajime Haneda; Masayuki Fujimoto

2006-06-01T23:59:59.000Z

209

Acetylene adsorption on the Si(111)-(7×7) surface: Ultraviolet photoemission and high-resolution electron-energy-loss spectroscopies  

Science Journals Connector (OSTI)

The room temperature adsorption and the thermal reaction of acetylene on the Si(111)-(7×7) surface has been investigated by means of ultraviolet-photoemission spectroscopy and high-resolution electron-energy-loss spectroscopy (HREELS). In the first stage of the adsorption process, the evolution of the restatom- and adatom-related electronic states as a function of acetylene exposure is well described by a modified di-?-bonding model, in which the metallic character of the (7×7) surface plays a fundamental role. For higher exposure, all the restatom dangling bonds are saturated and the adsorption process continues through saturation of the remaining adatoms. In this phase, a molecular tilting is observed, possibly accompanied by a surface atom rearrangement. Upon annealing to 600 °C, acetylene dehydrogenation and partial desorption occur, as demonstrated by the disappearance of the C-H modes in HREELS and the reappearance of the adatom and restatom dangling-bond states in valence-band spectra. At 700 °C the formation of a Si-C compound is observed. Atomic-force-microscopy topographic images taken ex situ after annealing to 800 °C show that the Si-C interface is constituted by islands with lateral dimension of ?300?Å, while the overall surface roughness is 10–20?Å.

V. De Renzi; R. Biagi; U. del Pennino

2001-09-18T23:59:59.000Z

210

TEM Examination of Advanced Alloys Irradiated in ATR  

SciTech Connect

Successful development of materials is critical to the deployment of advanced nuclear power systems. Irradiation studies of candidate materials play a vital role for better understanding materials performance under various irradiation environments of advanced system designs. In many cases, new classes of materials have to be investigated to meet the requirements of these advanced systems. For applications in the temperature range of 500 800ºC which is relevant to the fast neutron spectrum burner reactors for the Global Nuclear Energy Partnership (GNEP) program, oxide dispersion strengthened (ODS) and ferritic martensitic steels (e.g., MA957 and others) are candidates for advanced cladding materials. In the low temperature regions of the core (<600ºC), alloy 800H, HCM12A (also called T 122) and HT 9 have been considered.

Jian Gan, PhD

2007-09-01T23:59:59.000Z

211

Vehicle Technologies Office: Parasitic Loss Reduction  

NLE Websites -- All DOE Office Websites (Extended Search)

Parasitic Loss Reduction Parasitic Loss Reduction Heavy vehicles lose a tremendous amount of energy to wind resistance and drag, braking, and rolling resistance. Such non-engine losses can account for an approximate 45% decrease in efficiency. Other sources of energy loss include: friction and wear in the power train, thermal (heat) loads, operation of auxiliary loads (air conditioning, heaters, refrigeration, etc.), and engine idling. The parasitic loss activity identifies methodologies that may reduce energy losses, and tests those in the laboratory. Promising technologies are then prototyped and tested onboard heavy vehicles. Once validated, technologies must be tested on-road to obtain durability, reliability, and life-cycle cost data for the developmental component and/or design strategy.

212

Observation of thermally etched grain boundaries with the FIB/TEM technique  

SciTech Connect

Thermal etching is a method which is able to reveal and characterize grain boundaries, twins or dislocation structures and determine parameters such as grain boundary energies, surface diffusivities or study phase transformations in steels, intermetallics or ceramic materials. This method relies on the preferential transfer of matter away from grain boundaries on a polished sample during heating at high temperatures in an inert/vacuum atmosphere. The evaporation/diffusion of atoms at high temperatures results in the formation of grooves at the intersections of the planes of grain/twin boundaries with the polished surface. This work describes how the combined use of Focussed Ion Beam and Transmission Electron Microscopy can be used to characterize not only the grooves and their profile with the surface, but also the grain boundary line below the groove, this method being complementary to the commonly used scanning probe techniques. - Highlights: • Thermally etched low-carbon steel samples have been characterized by FIB/TEM • Grain boundary (GB) lines below the groove have been characterized in this way • Absence of ghost traces and large ? angle suggests that GB are not stationary but mobile • Observations correlate well with previous works and Mullins' investigations [22].

Palizdar, Y., E-mail: y.palizdar@merc.ac.ir [Nanotechnology and advanced materials department, Materials and energy research centre (MERC), Karaj (Iran, Islamic Republic of); San Martin, D. [MATERALIA group, Department of Physical Metallurgy, (CENIM-CSIC), Centro Nacional de Investigaciones Metalúrgicas Av. Gregorio del Amo 8, 28040 Madrid (Spain); Ward, M.; Cochrane, R.C.; Brydson, R.; Scott, A.J. [Institute for Materials Research, SPEME, University of Leeds, Leeds LS2 9JT (United Kingdom)

2013-10-15T23:59:59.000Z

213

Memory Loss Chapter 6  

E-Print Network (OSTI)

Part II Memory Loss 129 #12;#12;Chapter 6 Generalized Conditionalization Up to this point we have to help CLF model two types of certainty-loss stories: stories in- volving memory loss and stories-sensitivity, (PEP) does almost no work in modeling stories involving memory loss. So we will proceed in stages: We

Fitelson, Branden

214

SUPERCONDUCTING MAGNETIC ENERGY STORAGE  

E-Print Network (OSTI)

hydro, compressed air, and battery energy storage are allenergy storage sys tem s suc h as pumped hydro and compressed air.

Hassenzahl, W.

2011-01-01T23:59:59.000Z

215

Quantitatively Depositing Viruses onto TEM Grids Jennifer Brum, Tucson Marine Phage Lab  

E-Print Network (OSTI)

1 Quantitatively Depositing Viruses onto TEM Grids Jennifer Brum, Tucson Marine Phage Lab April prevents wear caused by metal-on-metal grinding) a) put a tiny amount of Spinkote on a Kimwipe b) rub

Sullivan, Matthew B.

216

BNL TEM  

NLE Websites -- All DOE Office Websites (Extended Search)

Another text My description Another text Another text Another text Another text My description Another text Another text Another text Another text Another text Another text My description Another text Another text Another text Another text My description Another text Another text Another text Another text Another text Nanostructure and Structural Defects of Advanced Materials Our major research interests are on nanoscale structural phenomena that determine the properties of materials using advanced and quantitative electron microscopy. We focus on three areas of research: Structural inhomogeneity of strongly correlated electron systems; Interfacial phenomena; and Nanostructured materials, utilizing our state-of-the-art electron microscopy facility and unique strength in method development. Our emphasis is on understanding the relationship between structure and properties, and the underlying mechanisms of the complex physical behaviors

217

MANAGING JOB LOSS and FINANCIAL STRESS  

E-Print Network (OSTI)

-hunting strategy. Put time and energy into planning actions that will lead to your next job such as preparingMANAGING JOB LOSS and FINANCIAL STRESS a Personal and Family Guide CENTER ON THE FAMILY #12;2 Managing Job Loss and Financial Stress The issues associated with losing one's job or having hours cut

218

Low Energy Supersymmetry From the Landscape  

E-Print Network (OSTI)

Low Energy Supersymmetry From the Landscape Michael Dine (work with Tom Banks, Elie Gorbatov quantum sys- tem(s). 1 #12;A New Element: The Flux Landscape, or Dis- cretuum · Metastable points

California at Santa Cruz, University of

219

structure. Integrating sustainable energy sys-tems into the infrastructure would allow rapid  

E-Print Network (OSTI)

needed for hydrogen-powered fuel cell vehicles, we will assume a vehicle fuel economy of 60 miles per kg N T Hybrid Cars Now, Fuel Cell Cars L adoption of electrolysis-based hydrogen pro- duction, whenever these future transportation systems become

Deutch, John

220

Chemical mapping of DNA and counter-ion content inside phage by energy-filtered TEM  

Science Journals Connector (OSTI)

Double-stranded DNA in many bacterial viruses (phage) is strongly confined, which results in internal genome pressures of tens of atmospheres. This pressure is strongly dependent on local ion concentration and di...

Pernilla Nevsten; Alex Evilevitch; Reine Wallenberg

2012-03-01T23:59:59.000Z

Note: This page contains sample records for the topic "tem energy losses" 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

SANS and TEM studies of carbide precipitation and creep damage in type 304 stainless steel  

SciTech Connect

Small-angle neutron scattering (SANS) and transmission electron microscopy (TEM) studies were performed to characterize the carbide (M/sub 23/C/sub 6/) precipitation and creep damage induced in type 304 stainless steel in the primary creep stage. The size distribution of matrix carbides evaluated from SANS analyses was consistent with TEM data, and the expected accelerated kinetics of precipitation under applied stress was confirmed. Additional SANS measurements after the postcreep solution annealing were made in order to differentiate cavities from the carbides. Potential advantages and difficulties associated with characterization of creep-induced cavitation by the SANS techniques are discussed.

Yoo, M.H.; Ogle, J.C.; Schneibel, J.H.; Swindeman, R.W.

1984-01-01T23:59:59.000Z

222

In Situ Laser Crystallization of Amorphous Silicon for TFT Applications: Controlled Ultrafast Studies in the Dynamic TEM  

SciTech Connect

An in situ method for studying the role of laser energy on the microstructural evolution of polycrystalline Si is presented. By monitoring both laser energy and microstructural evolution simultaneously in the dynamic transmission electron microscope, information on grain size and defect concentration can be correlated directly with processing conditions. This proof of principle study provides fundamental scientific information on the crystallization process that has technological importance for the development of thin film transistors. In conclusion, we successfully developed a method for studying UV laser processing of Si films in situ on nanosecond time scales, with ultimate implications for TFT application improvements. In addition to grain size distribution as a function of laser energy density, we found that grain size scaled with laser energy in general. We showed that nanosecond time resolution allowed us to see the nucleation and growth front during processing, which will help further the understanding of microstructural evolution of poly-Si films for electronic applications. Future studies, coupled with high resolution TEM, will be performed to study grain boundary migration, intergranular defects, and grain size distribution with respect to laser energy and adsorption depth.

Taheri, M; Teslich, N; Lu, J P; Morgan, D; Browning, N

2008-02-08T23:59:59.000Z

223

STAFF PAPER A Review of Transmission Losses in  

E-Print Network (OSTI)

Electricity Analysis Office Electricity Supply Analysis Division California Energy Commission and distribution loss values in planning studies. In this effort, staff analyzed data, researched literature STAFF PAPER A Review of Transmission Losses in Planning Studies Lana Wong

224

TEM/EELS analysis of heat-treated carbon nanotubes: experimental techniques  

Science Journals Connector (OSTI)

......ability to use this entire battery of techniques, each providing...Atomic resolution within the graphene planes is next to impossible...heat-treated. We applied a full battery of TEM/EELS techniques...concerned. The curvature of the graphene planes in a nanotube does have......

Bryan W. Reed; Mehmet Sarikaya

2002-03-01T23:59:59.000Z

225

Structural observation of Pd silicide islands on Si (111) surfaces with UHV-TEM/STM  

Science Journals Connector (OSTI)

......silicide islands on Si (111) surfaces with UHV-TEMSTM Miyoko Tanaka Masaki Takeguchi...microscopyscanning tunnelling microscopy (UHV-TEMSTM) combined system to clarify the...silicide islands on Si (111) surfaces with UHV-TEM/STM Miyoko Tanaka * , Masaki Takeguchi......

Miyoko Tanaka; Masaki Takeguchi; Hidehiro Yasuda; Kazuo Furuya

2002-03-01T23:59:59.000Z

226

Instituto do petrleo e do gs nasce por causa do Brasil e tem  

E-Print Network (OSTI)

Instituto do petróleo e do gás nasce por causa do Brasil e tem 110 milhões de euros até 2017&D chegam a 775 milhões de dólares em 2025 A Galp Energia vai aplicar 1% das receitas no Brasil em I&D O. As regras de aproveitamento do financiamento proporcionado através do Brasil impõem, contudo, que as verbas

Instituto de Sistemas e Robotica

227

Estimation of the electron density and radiative energy losses in a calcium plasma source based on an electron cyclotron resonance discharge  

SciTech Connect

The parameters of a calcium plasma source based on an electron cyclotron resonance (ECR) discharge were calculated. The analysis was performed as applied to an ion cyclotron resonance system designed for separation of calcium isotopes. The plasma electrons in the source were heated by gyrotron microwave radiation in the zone of the inhomogeneous magnetic field. It was assumed that, in such a combined trap, the energy of the extraordinary microwave propagating from the high-field side was initially transferred to a small group of resonance electrons. As a result, two electron components with different transverse temperatures-the hot resonance component and the cold nonresonance component-were created in the plasma. The longitudinal temperatures of both components were assumed to be equal. The entire discharge space was divided into a narrow ECR zone, where resonance electrons acquired transverse energy, and the region of the discharge itself, where the gas was ionized. The transverse energy of resonance electrons was calculated by solving the equations for electron motion in an inhomogeneous magnetic field. Using the law of energy conservation and the balance condition for the number of hot electrons entering the discharge zone and cooled due to ionization and elastic collisions, the density of hot electrons was estimated and the dependence of the longitudinal temperature T{sub e Parallel-To} of the main (cold) electron component on the energy fraction {beta} lost for radiation was obtained.

Potanin, E. P., E-mail: potanin@imp.kiae.ru; Ustinov, A. L. [National Research Centre Kurchatov Institute (Russian Federation)

2013-06-15T23:59:59.000Z

228

TEM and HAADF-STEM study of a Au catalyst supported on a TiO2 nano-rod  

Science Journals Connector (OSTI)

......gas chromatography. Au/TiO2 nano-rod catalysts for TEM observation were supported on a copper mesh with a carbon micro-grid. TEM and HAADF-STEM observations were performed with a JEOL JEM-3000F electron microscope at an accelerating voltage......

Tomoki Akita; Koji Tanaka; Kayoko Okuma; Tsuguo Koyanagi; Masatake Haruta

2001-11-01T23:59:59.000Z

229

Comparison of Carrier Multiplication Yields in PbS and PbSe Nanocrystals: The Role of Competing Energy-Loss Processes  

Science Journals Connector (OSTI)

While the use of Eg-normalized photon energies in evaluating the CM efficiencies is still a subject of debate,(30, 31) the fact that PbSe NCs are superior to bulk PbSe with regard to CM-related enhancement of the “energetic output” (evaluated, for example, from the product of Eg and the QE(24, 28) or calculated power conversion efficiencies(7, 8); QE is the quantum efficiency of photon to exciton conversion) is almost universally accepted in the community. ... The efficiency of conventional solar cells is limited because the excess energy of absorbed photons converts to heat instead of producing electron-hole pairs. ... Using atomistic pseudopotential calcns., the authors show here that the more conventional impact ionization mechanism, whereby a photogenerated electron-hole pair decays into a biexciton in a process driven by Coulomb interactions between the carriers, can explain both the rate («1 ps) and the energy threshold (?2.2 times the band gap) of carrier multiplication, without the need to invoke alternative mechanisms. ...

John T. Stewart; Lazaro A. Padilha; M. Mumtaz Qazilbash; Jeffrey M. Pietryga; Aaron G. Midgett; Joseph M. Luther; Matthew C. Beard; Arthur J. Nozik; Victor I. Klimov

2011-12-12T23:59:59.000Z

230

Rationale and Goals for Loan Loss Reserve Funds  

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

State and local governments can use a loan loss reserve (LLR) fund to entice a potential financial institution partner to offer products for financing energy efficiency and renewable energy...

231

Independents' group posts loss  

SciTech Connect

Low oil gas prices and special charges caused the group of 50 U.S. independent producers Oil and Gas Journal tracks to post a combined loss in first half 1992. The group logged a net loss of $53 million in the first half compared with net earnings of $354 million in first half 1991, when higher oil prices during the Persian Gulf crisis buoyed earnings in spite of crude oil and natural gas production declines. The combined loss in the first half follows a 45% drop in the group's earnings in 1991 and compares with the OGJ group of integrated oil companies whose first half 1992 income fell 47% from the prior year. Special charges, generally related to asset writedowns, accounted for most of the almost $560 million in losses posted by about the third of the group. Nerco Oil and Gas Inc., Vancouver, Wash., alone accounted for almost half that total with charges related to an asset writedown of $238 million in the first quarter. Despite the poor first half performance, the outlook is bright for sharply improved group earnings in the second half, assuming reasonably healthy oil and gas prices and increased production resulting from acquisitions and in response to those prices.

Sanders, V.; Price, R.B.

1992-11-23T23:59:59.000Z

232

Catalogue of a Loss  

E-Print Network (OSTI)

Catalogue of a Loss is a collection of sixty-two prose poems written within the past year and half. The work is printed on 4x6 cards. Each poem may be read individually from a single card or the poems can be read in ...

Berger, Larisa (Larisa A.)

2012-01-01T23:59:59.000Z

233

Loss reduction experiences in electric power distribution companies of Iran  

Science Journals Connector (OSTI)

The experiences of the loss reduction projects in electric power distribution companies (EPDCs) of Iran are presented. The loss reduction methods, which are proposed individually by 14 EPDCs, corresponding energy saving (ES), Investment costs (IC), and loss rate reductions are provided. In order to illustrate the effectiveness and performance of the loss reduction methods, three parameters are proposed as energy saving per investment costs (ESIC), energy saving per quantity (ESPQ), and investment costs per quantity (ICPQ). The overall ESIC of 14 EPDC as well as individual average and standard deviation of the EISC for each method is presented and compared. In addition, the average and standard deviation of the \\{ESPQs\\} and \\{ICPQs\\} for the loss reduction methods, individually, are provided and investigated. These parameters are useful for \\{EPDCs\\} that intend to reduce the electric losses in distribution networks as a benchmark and as a background in the planning purposes.

Ali Arefi; Javad Olamaei; Akbar Yavartalab; Hesam Keshtkar

2012-01-01T23:59:59.000Z

234

Effects of foil thickness on measurement of grain boundary segregation with FEG-TEM/EDS in austenitic stainless steels  

Science Journals Connector (OSTI)

......resolution of the EDS analysis was little sensitive...concerned. Keywords EDS analysis, EELS, FEG-TEM...which are used in reactor cores, that was caused...key factors for the reliability of EDS analysis. The objectives of......

Kiyotomo Nakata; Osamu Okada; Yasumitsu Ueki; Takeo Kamino

1998-01-01T23:59:59.000Z

235

Soil loss: An overview  

Science Journals Connector (OSTI)

The earth's soil budget is analysed and the causes of loss and degeneration are described. The main efforts to solve the problems of soil los should be concentrated on: 1. (i) the preparation of international guidelines for conservation policy; 2. (ii) declaration of an International Soil Conservation Decade; 3. (iii) acceleration of and support for land assessment; 4. (iv) development of national planning for alternative land uses; 5. (v) research to establish ecologically sound policies for land use and conservation.

V.A. Kovda

1976-01-01T23:59:59.000Z

236

Friction/Wear ? Parasitic Energy Losses  

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

Presentation from the U.S. DOE Office of Vehicle Technologies "Mega" Merit Review 2008 on February 25, 2008 in Bethesda, Maryland.

237

DOE/DOD Parasitic Energy Loss Collaboration  

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

2012 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Program Annual Merit Review and Peer Evaluation Meeting

238

Light Pollution and its Energy Loss  

Science Journals Connector (OSTI)

Data obtained by US DMSP satellites were analyzed to obtain light energyin order to monitor light pollution at different countries. Light detectedby the satellites is one ejected to ... used toilluminate objects ...

S.I. Isobe; S. Hamamura

2000-09-01T23:59:59.000Z

239

Memory effects in radiative jet energy loss  

E-Print Network (OSTI)

In heavy-ion collisions the created quark-gluon plasma forms a quickly evolving background, leading to a time dependent radiative behavior of high momentum partons traversing the medium. We use the Schwinger Keldysh formalism to describe the jet evolution as a non-equilibrium process including the Landau-Pomeranschuk-Migdal effect. Concentrating on photon emission, a comparison of our results to a quasistatic calculation shows good agreement, leading to the conclusion that the radiative behavior follows the changes in the medium almost instantaneously.

Frank Michler; Björn Schenke; Carsten Greiner

2009-05-18T23:59:59.000Z

240

DOE/DOD Parasitic Energy Loss Collaboration  

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

2011 DOE Hydrogen and Fuel Cells Program, and Vehicle Technologies Program Annual Merit Review and Peer Evaluation

Note: This page contains sample records for the topic "tem energy losses" 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

TEM Characterization of High Burn-up Microstructure of U-7Mo Alloy  

SciTech Connect

As an essential part of global nuclear non-proliferation effort, the RERTR program is developing low enriched U-Mo fuels (< 20% U-235) for use in research and test reactors that currently employ highly enriched uranium fuels. One type of fuel being developed is a dispersion fuel plate comprised of U-7Mo particles dispersed in Al alloy matrix. Recent TEM characterizations of the ATR irradiated U-7Mo dispersion fuel plates include the samples with a local fission densities of 4.5, 5.2, 5.6 and 6.3 E+21 fissions/cm3 and irradiation temperatures of 101-136?C. The development of the irradiated microstructure of the U-7Mo fuel particles consists of fission gas bubble superlattice, large gas bubbles, solid fission product precipitates and their association to the large gas bubbles, grain subdivision to tens or hundreds of nanometer size, collapse of bubble superlattice, and amorphisation. This presentation will describe the observed microstructures specifically focusing on the U-7Mo fuel particles. The impact of the observed microstructure on the fuel performance and the comparison of the relevant features with that of the high burn-up UO2 fuels will be discussed.

Jian Gan; Brandon Miller; Dennis Keiser; Adam Robinson; James Madden; Pavel Medvedev; Daniel Wachs

2014-04-01T23:59:59.000Z

242

Loan Loss Reserves: Lessons from the Field (Text Version)  

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

Merrian Fuller: Hi, and welcome to the Department of Energy's webinar on using loan-loss reserves report financing programs. My name is Marian Fuller, I work with Lawrence Berkeley National...

243

Evaluation of strain caused by coherent precipitates in an Al alloy using TEM techniques  

SciTech Connect

Elastic strains, caused by GP zones in an aged Al alloy, were determined quantitatively using two techniques: Dark Field In-line Holography (DFH) and High Resolution Transmission Electron Microscopy-Geometric Phase Analysis (HRTEM-GPA). The results obtained by both techniques showed that the elastic strain was not uniform along the precipitate-matrix interface. In some areas, it was found that strain had negligible value and this was attributed to the loss of coherence between the lattices. It is suggested that a possible explanation for this fact could be a variation in the 'vacancies pump mechanism' kinetics. To obtain a better interpretation of the experimental deformation maps, a reference GP precipitate-matrix structure was built using QSTEM software. The main advantages of DFH over HRTEM-GPA were a bigger field of view and low electron dose requirements without spatial resolution loss. Another difference found was that crystalline defects such as dislocations were evidenced by HRTEM-GPA in contrast to the result obtained by DFH. However, strain measurements were affected by mask size effect in the former. - Highlights: Black-Right-Pointing-Pointer Strain around GP precipitates was not uniform and was in a more relaxed state. Black-Right-Pointing-Pointer Strain values determined by HRTEM had more artifacts compared with holography ones. Black-Right-Pointing-Pointer Strain distribution was attributed to differences in the release of vacancies. Black-Right-Pointing-Pointer Holography showed important advantages over HRTEM regarding field of view mainly.

Hernandez-Rivera, J.L., E-mail: jose.hernandez@cimav.edu.mx [Centro de Investigacion en Materiales Avanzados (CIMAV), Laboratorio Nacional de Nanotecnologia, Miguel de Cervantes 120, Z.C. 31109, Chihuahua (Mexico); Universidad del Valle de Mexico, Robles 600, Fraccionamiento Jacarandas, Z. C. 78220, San Luis Potosi (Mexico); Rivera, J.J. Cruz; Garay-Reyes, C.G.; Azpeitia, M. Ramos; Zuniga-Alonso, I. [Facultad de Ingenieria-Instituto de Metalurgia, Universidad Autonoma de San Luis Potosi, Sierra Leona 550, Lomas 2a seccion, Z.C. 78210, San Luis Potosi (Mexico)] [Facultad de Ingenieria-Instituto de Metalurgia, Universidad Autonoma de San Luis Potosi, Sierra Leona 550, Lomas 2a seccion, Z.C. 78210, San Luis Potosi (Mexico); Martinez-Sanchez, R. [Centro de Investigacion en Materiales Avanzados (CIMAV), Laboratorio Nacional de Nanotecnologia, Miguel de Cervantes 120, Z.C. 31109, Chihuahua (Mexico)] [Centro de Investigacion en Materiales Avanzados (CIMAV), Laboratorio Nacional de Nanotecnologia, Miguel de Cervantes 120, Z.C. 31109, Chihuahua (Mexico)

2012-11-15T23:59:59.000Z

244

POWER PLANT WATER USAGE AND LOSS STUDY - Final  

NLE Websites -- All DOE Office Websites (Extended Search)

POWER PLANT WATER USAGE AND LOSS STUDY POWER PLANT WATER USAGE AND LOSS STUDY August 2005 Revised May 2007 Prepared for: The United States Department of Energy National Energy Technology Laboratory DOE Gasification Technology Manager: Gary J. Stiegel DOE Project Manager: James R. Longanbach Project Manager: Michael D. Rutkowski Principal Investigators: Michael G. Klett Norma J. Kuehn Ronald L. Schoff Vladimir Vaysman Jay S. White Power Plant Water Usage and Loss Study i August 2005 TABLE OF CONTENTS TABLE OF CONTENTS ...................................................................................................................... I LIST OF TABLES.............................................................................................................................III

245

Coupled study by TEM/EELS and STM/STS of electronic properties of C-and CNx-nanotubes  

E-Print Network (OSTI)

Coupled study by TEM/EELS and STM/STS of electronic properties of C- and CNx-nanotubes Hong Lina/Mariano Esquillor, 50018 Zaragoza, Spain Abstract Carbon nanotubes are the focus of considerable research efforts of one dimensional materials and molecular electronics. The chirality of nanotubes can lead to very

Boyer, Edmond

246

Microaspiration for high-pressure freezing: a new method for ultrastructural preservation of fragile and sparse tissues for TEM and electron tomography  

SciTech Connect

High-pressure freezing is the preferred method to prepare thick biological specimens for ultrastructural studies. However, the advantages obtained by this method often prove unattainable for samples that are difficult to handle during the freezing and substitution protocols. Delicate and sparse samples are difficult to manipulate and maintain intact throughout the sequence of freezing, infiltration, embedding, and final orientation for sectioning and subsequent TEM imaging. An established approach to surmount these difficulties is the use of cellulose microdialysis tubing to transport the sample. With an inner diameter of 200 micrometers, the tubing protects small and fragile samples within the thickness constraints of high-pressure freezing, and the tube ends can be sealed to avoid loss of sample. Importantly, the transparency of the tubing allows optical study of the specimen at different steps in the process. Here, we describe the use of a micromanipulator and microinjection apparatus to handle and position delicate specimens within the tubing. We report two biologically significant examples that benefit from this approach, 3D cultures of mammary epithelial cells and cochlear outer hair cells. We illustrate the potential for correlative light and electron microscopy as well as electron tomography.

Auer, Manfred; Triffo, W.J.; Palsdottir, H.; McDonald, K.L.; Inman, J.L.; Bissell, M.J.; Raphael, R.M.; Auer, M.; Lee, J.K.

2008-02-13T23:59:59.000Z

247

Minimize Boiler Short Cycling Losses  

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

This tip sheet on minimizing boiler short cycling losses provides how-to advice for improving industrial steam systems using low-cost, proven practices and technologies.

248

Energy  

NLE Websites -- All DOE Office Websites (Extended Search)

Energy newsroomassetsimagesenergy-icon.png Energy Research into alternative forms of energy, and improving and securing the power grid, is a major national security...

249

A critical concern for embedded sys tems is the need to deliver high levels of per  

E-Print Network (OSTI)

­ parison of standard configurations of Nokia 232 and Ericsson T68 phones). At the same time, mobile phones power through dynamic voltage scaling (DVS). 1 Lowering clock frequency to the minimum required voltage. Because dynam­ ic energy scales quadratically with supply volt­ age, DVS can significantly reduce

Mudge, Trevor

250

Fe-Cr-Mo based ODS alloys via spark plasma sintering: A combinational characterization study by TEM and APT  

SciTech Connect

Nanoscale oxides play an important role in oxide dispersion strengthened (ODS) alloys for improved high temperature creep resistance and enhanced radiation damage tolerance. In this study, transmission electron microscopy (TEM) and atom probe tomography (APT) were combined to investigate two novel Fe-16Cr-3Mo (wt.%) based ODS alloys. Spark plasma sintering (SPS) was used to consolidate the ODS alloys from powders that were milled with 0.5 wt.% Y2O3 powder only or with Y2O3 powder and 1 wt.% Ti. TEM characterization revealed that both alloys have a bimodal structure of nanometer-size (~ 100 – 500 nm) and micron-size grains with nanostructured oxide precipitates formed along and close to grain boundaries with diameters ranging from five to tens of nanometers. APT provides further quantitative analyses of the oxide precipitates, and also reveals Mo segregation at grain boundaries next to oxide precipitates. The alloys with and without Ti are compared based on their microstructures.

Y. Q. Wu; K. N. Allahar; J. Burns; B. Jacques; I Charit; D. P. Butt; J. I. Cole

2013-08-01T23:59:59.000Z

251

Duplex Oxide Formation during Transient Oxidation of Cu-5%Ni(001) Investigated by In situ UHV-TEM and XPS  

SciTech Connect

The transient oxidation stage of a model metal alloy thin film was characterized with in situ ultra-high vacuum (UHV) transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS) and analytic high-resolution TEM. We observed the formations of nanosized NiO and Cu{sub 2}O islands when Cu-5a5%Ni(100) was exposed to oxygen partial pressure, pO{sub 2} = 1 x 10{sup -4} Torr and various temperatures in situ. At 350 C epitaxial Cu{sub 2}O islands formed initially and then NiO islands appeared on the surface of the Cu{sub 2}O island, whereas at 750 C NiO appeared first. XPS and TEM was used to reveal a sequential formation of NiO and then Cu{sub 2}O islands at 550 C. The temperature-dependant oxide selection may be due to an increase of the diffusivity of Ni in Cu with increasing temperature.

Yang, J.C.; Starr, D.; Kang, Y.; Luo, L.; Tong, X.; Zhou, G.

2012-05-20T23:59:59.000Z

252

A TEM quantitative evaluation of strengthening in an Mg-RE alloy reinforced with SiC  

SciTech Connect

Magnesium alloys containing rare earth elements are known to have high specific strength, good creep and corrosion resistance up to 523 K. The addition of SiC ceramic particles strengthens the metal matrix composite resulting in better wear and creep resistance while maintaining good machinability. The role of the reinforcement particles in enhancing strength can be quantitatively evaluated using transmission electron microscopy (TEM). This paper presents a quantitative evaluation of the different strengthening contributions, determined through TEM inspections, in an SiC Mg-RE composite alloy containing yttrium, neodymium, gadolinium and dysprosium. Compression tests at temperatures ranging between 290 and 573 K were carried out. The microstructure strengthening mechanism was studied for all the compression conditions. Strengthening was compared to the mechanical results and the way the different contributions were combined is also discussed and justified. - Research Highlights: {yields} TEM yield strengthening terms evaluation on a Mg-RE SiC alloy. {yields} The evaluation has been extended to different compression temperature conditions. {yields} Linear and Quadratic sum has been proposed and validated. {yields} Hall-Petch was found to be the most prominent strengthening contributions.

Cabibbo, Marcello, E-mail: m.cabibbo@univpm.it; Spigarelli, Stefano

2011-10-15T23:59:59.000Z

253

Role of plasma waves in Mars' atmospheric loss R. E. Ergun,1,2  

E-Print Network (OSTI)

Role of plasma waves in Mars' atmospheric loss R. E. Ergun,1,2 L. Andersson,1 W. K. Peterson,1 D impact on Mars' atmospheric loss. We discuss two energy sources of plasma waves: the solar wind. Yau (2006), Role of plasma waves in Mars' atmospheric loss, Geophys. Res. Lett., 33, L14103, doi:10

California at Berkeley, University of

254

Low Energy Supersymmetry From the Landscape  

E-Print Network (OSTI)

Low Energy Supersymmetry From the Landscape Michael Dine (work with Tom Banks, Elie Gorbatov properties of some stable quantum sys- tem(s). 1 #12;A New Element: The Flux Landscape, or Dis- cretuum with all moduli stabilized. · In this vast "landscape", can't hope to find "the state" which describes our

California at Santa Cruz, University of

255

Minimize Boiler Short Cycling Losses  

SciTech Connect

This revised ITP tip sheet on minimizing boiler short cycling losses provides how-to advice for improving industrial steam systems using low-cost, proven practices and technologies.

Not Available

2006-01-01T23:59:59.000Z

256

Turbine tip clearance loss mechanisms  

E-Print Network (OSTI)

Three-dimensional numerical simulations (RANS and URANS) were used to assess the impact of two specific design features, and of aspects of the actual turbine environment, on turbine blade tip loss. The calculations were ...

Mazur, Steven (Steven Andrew)

2013-01-01T23:59:59.000Z

257

Loss-Free Pricing Rules  

Science Journals Connector (OSTI)

This chapter provides an application of the pricing rule approach to the analysis of unregulated market economies with non-convex production sets. Loss-free pricing rules provide a natural framework for this a...

Prof. Dr. Antonio Villar

2000-01-01T23:59:59.000Z

258

Fusion-product transport in axisymmetric tokamaks: losses and thermalization  

SciTech Connect

High-energy fusion-product losses from an axisymmetric tokamak plasma are studied. Prompt-escape loss fluxes (i.e. prior to slowing down) are calculated including the non-separable dependence of flux as a function of poloidal angle and local angle-of-incidence at the first wall. Fusion-product (fp) thermalization and heating are calculated assuming classical slowing down. The present analytical model describes fast ion orbits and their distribution function in realistic, high-..beta.., non-circular tokamak equilibria. First-orbit losses, trapping effects, and slowing-down drifts are also treated.

Hively, L.M.

1980-01-01T23:59:59.000Z

259

MHD Induced Neutral Beam Ion Loss from NSTX Plasmas  

SciTech Connect

Bursts of ~60 kHz activity on Mirnov coils occur frequently in NSTX plasmas and these are accompanied by bursts of neutral beam ion loss over a range in pitch angles. These losses have been measured with a scintillator type loss probe imaged with a high speed (>10,000 frames/s) video camera, giving the evolution of the energy and pitch angle distributions of the lost neutral beam ions over the course of the events. The instability occurs below the TAE frequency in NSTX (~100 kHz) in high beta plasmas and may be a beta driven Alfvén acoustic (BAAE) mode.

D.S. Darrow, E.D. Fredrickson, N.N. Gorelenkov, A.L. Roquemore, and K. Shinohara

2007-12-13T23:59:59.000Z

260

Abstract--An improvement to the precision of losses calculation in static converters used in a hybrid renewable  

E-Print Network (OSTI)

rates. In this article, a new approach to estimate the energy losses in the power electronics converters losses evaluation is demonstrated. Index Terms--power conversion losses, power generation, solar energy-state maximal current (A) M Inverter modulation index (-) Inverter load angle (rad) pdc/ac Inverter conduction

Paris-Sud XI, Université de

Note: This page contains sample records for the topic "tem energy losses" 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

SmartTecO: Context-Based Ambient Sensing and Monitoring for Optimizing Energy Consumption  

E-Print Network (OSTI)

, Germany firstname.lastname@kit.edu Naoya Namatame Keio University Tokyo, Japan namachan- tems currently implemented in households and offices. Domestic energy use is commonly invisible

Beigl, Michael

262

Efficiency loss in resource allocation games  

E-Print Network (OSTI)

The overarching goals of this thesis are to quantify the efficiency loss due to market participant strategic behavior, and to design proper pricing mechanisms that reduce the efficiency loss. The concept of efficiency loss ...

Xu, Yunjian

2012-01-01T23:59:59.000Z

263

Control of transformer losses in Canada  

SciTech Connect

A new standard issued by the Canadian Standards Association, CSA C802, imposes maximum losses on transformers 10 MVA and below. Included are Distribution Transformers, small Power Transformers, and Dry Types. Implementation will start though the publishing in mid 1994 of the Gazette by Ontario`s Ministry of Energy. The Gazette will call for conformance to C802 after a lead time of one year to eighteen months, depending on the type of transformer. Other provincial energy ministries have been awaiting this development and are expected to follow suit shortly thereafter. The federal department, Natural Resources Canada, is also attuned to these actions and is expected to issue supportive legislation which will control movement of transformers across provincial and national borders.

Wiegand, D.A. [Canadian Standards Association, Toronto, Ontario (Canada)

1994-12-31T23:59:59.000Z

264

Energy  

Science Journals Connector (OSTI)

Energy ... “Scientific Challenges in Sustainable Energy Technology,” by Nathan S. Lewis of the California Institute of Technology, summarizes data on energy resources and analyses the implications for human society. ... ConfChem Conference on Educating the Next Generation: Green and Sustainable Chemistry—Solar Energy: A Chemistry Course on Sustainability for General Science Education and Quantitative Reasoning ...

John W. Moore

2008-07-01T23:59:59.000Z

265

Tax aspects of casualty losses  

E-Print Network (OSTI)

. Commissioner, P-H. h?emo. T. C. , ?ar. 50, 221. Termites. Termite damages have been allowed by some Courts as a casualty loss deduction, but the Internal Revenue Service prior to 1959 generally did not grant such deductions. However, in a recent Revenue... ruling the Internal Revenue: ervice indicated that it will follow 39 the decision of Buist v. United States. In the Revenue ruling the Service states that termite damage can be sudden and if sudden, it can result in a casualty loss. Also, the Service...

Lehmann, August Herman

1960-01-01T23:59:59.000Z

266

Home Energy Checklist | Department of Energy  

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

bill for energy conservation measures. Checkbox Insulate your hot water pipes to prevent heat loss. Checkbox Insulate heating ducts in unheated areas, such as attics and...

267

Specificity and cooperativity at [beta]-lactamase position 104 in TEM-1/BLIP and SHV-1/BLIP interactions  

SciTech Connect

Establishing a quantitative understanding of the determinants of affinity in protein-protein interactions remains challenging. For example, TEM-1/{beta}-lactamase inhibitor protein (BLIP) and SHV-1/BLIP are homologous {beta}-lactamase/{beta}-lactamase inhibitor protein complexes with disparate K{sub d} values (3 nM and 2 {mu}M, respectively), and a single substitution, D104E in SHV-1, results in a 1000-fold enhancement in binding affinity. In TEM-1, E104 participates in a salt bridge with BLIP K74, whereas the corresponding SHV-1 D104 does not in the wild type SHV-1/BLIP co-structure. Here, we present a 1.6 {angstrom} crystal structure of the SHV-1 D104E/BLIP complex that demonstrates that this point mutation restores this salt bridge. Additionally, mutation of a neighboring residue, BLIP E73M, results in salt bridge formation between SHV-1 D104 and BLIP K74 and a 400-fold increase in binding affinity. To understand how this salt bridge contributes to complex affinity, the cooperativity between the E/K or D/K salt bridge pair and a neighboring hot spot residue (BLIP F142) was investigated using double mutant cycle analyses in the background of the E73M mutation. We find that BLIP F142 cooperatively stabilizes both interactions, illustrating how a single mutation at a hot spot position can drive large perturbations in interface stability and specificity through a cooperative interaction network.

Hanes, Melinda S.; Reynolds, Kimberly A.; McNamara, Case; Ghosh, Partho; Bonomo, Robert A.; Kirsch, Jack F.; Handel, Tracy M. (Case Western); (UCB); (UCSD)

2011-11-02T23:59:59.000Z

268

Automated measurement of grain orientations and on-line determination of complete deformation systems with a TEM  

SciTech Connect

An automated computer technique for the indexing of spot or transmission Kikuchi patterns from any crystal structure has been developed. The patterns are recorded from the fluorescence screen of a PHILIPS EM 430 TEM with an integrating, Peltier cooled CCD camera (PULNIX TM 860N) through a window from outside by replacing the focusing binocular. The frame-grabber board PCLL2 (SPINDLER & HOYER) has a resolution of 8 bit which corresponds to 256 grey levels. To reduce the high range of image contrast, a circular continuous density filter is positioned directly in front of the camera lens. A system for image orientation microscopy requires the automated shift of the beam position on the sample, or alternatively a translation movement of the sample with respect to the stationary primary beam, in well defined steps after each orientation measurement. In the EM 430 TEM the built-in scanning unit is simply used to move the electron probe across the sample. The shift is controlled by the computer through a digital-to-analog converter interface. 6 refs., 2 figs.

Schwarzer, R.A.; Zaefferer, S. [Institut fuer Metallkunde und Metallphysik, Clausthal-Z (Germany)

1995-12-31T23:59:59.000Z

269

#AskEnergySaver: Building Envelopes | Department of Energy  

Energy Savers (EERE)

for flashing and for insulating to minimize water and moisture intrusion and energy loss? What are the most energy-efficient window types in cold environments? -- from Daniel...

270

Shunt current loss of the vanadium redox flow battery  

Science Journals Connector (OSTI)

The shunt current loss is one of main factors to affect the performance of the vanadium redox flow battery, which will shorten the cycle life and decrease the energy transfer efficiency. In this paper, a stack-level model based on the circuit analog method is proposed to research the shunt current loss of the vanadium redox flow battery, in which the SOC (state of charge) of electrolyte is introduced. The distribution of shunt current is described in detail. The sensitive analysis of shunt current is reported. The shunt current loss in charge/discharge cycle is predicted with the given experimental data. The effect of charge/discharge pattern on the shunt current loss is studied. The result shows that the reduction of the number of single cells in series, the decrease of the resistances of manifold and channel and the increase of the power of single cell will be the further development for the VRFB stack.

Feng Xing; Huamin Zhang; Xiangkun Ma

2011-01-01T23:59:59.000Z

271

Ris Energy Report 7 This Ris Energy Report, the seventh of a series that began  

E-Print Network (OSTI)

#12;#12;#12;#12;#12;3 1 Risø Energy Report 7 This Risø Energy Report, the seventh of a series. This report presents state-of-the-art and development per- spectives for energy supply technologies, new energy sys- tems, end-use energy efficiency improvements and new pol- icy measures. It also includes

272

Building Energy Software Tools Directory: ISOVER Energi  

NLE Websites -- All DOE Office Websites (Extended Search)

ISOVER Energi ISOVER Energi ISOVER Energi logo Calculates: U-value, for constructions with and without thermal bridges; total heat loss for buildings; and energy demand for buildings. ISOVER Energi compares heat loss to the heat loss frame in the Danish Building Regulations. The energy demand is compared to the energy frame in the Danish Building Regulations. Furthermore ISOVER Energi calculates the profitability of activities e.g. retrofit, renewing of windows, to improve the energy performance of existing buildings. The profitability is compared to the criteria in the Danish Building Regulations. Access to databases with characteristics for common building materials and with linear heat losses for typical solutions for connections. The database facility is planned to be enlarged with databases for windows, boilers,

273

Energy Blog | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Energy.gov » Energy Blog Energy.gov » Energy Blog Energy Blog RSS September 30, 2011 Colorized TEM (Transmission Electron Microscopy) micrograph of a cell of Geobacter sulfurreducens (orange) with its pili (yellow) stretching out like arms and immobilizing the uranium (black precipitate). | Image courtesy of Dena Cologgi and Gemma Reguera, Michigan State University Geobacter: The Junk Food Connoisseurs of the Bacterial Kingdom With a healthy appetitie for uranium and petroleum, this family of bacteria clean up nuclear waste and other toxic materials. A team of researchers has discovered exactly how they use their arms to do this. September 30, 2011 This Month on Energy Savers: September 2011 September is a month full of changes: it marks the switch from summer to

274

Polycrystalline oxides formation during transient oxidation of (001) Cu-Ni binary alloys studied by in situ TEM and XRD.  

SciTech Connect

The nucleation and growth of Cu{sub 2}O and NiO islands due to oxidation of Cu{sub x}Ni{sub 1-x} (001) films were monitored, at various temperatures, by in situ ultra-high vacuum (UHV) transmission electron microscopy (TEM) and in situ synchrotron X-ray diffraction (XRD). In remarkable contrast to our previous observations of Cu and Cu-Au oxidation, irregular-shaped polycrystalline oxide islands formed with respect to the Cu-Ni alloy film, and an unusual second oxide nucleation stage was noted. In situ XRD experiments revealed that NiO formed first epitaxially, then other orientations appeared, and finally polycrystalline Cu{sub 2}O developed as the oxidation pressure was increased. The segregation of Ni and Cu towards or away, respectively, from the alloy surface during oxidation could disrupt the surface and cause polycrystalline oxide formation.

Yang, J. C.; Li, Z. Q.; Sun, L.; Zhou, G. W.; Eastman, J. A.; Fong, D. D.; Fuoss, P. H.; Baldo, P. M.; Rehn, L. E.; Thompson, L. J.; Materials Science Division; Univ.of Pittsburgh; State Univ. of New York at Binghamton

2009-01-01T23:59:59.000Z

275

TEM and x-ray investigation of single crystal-like zirconia films fabricated by dual ion beam deposition  

SciTech Connect

Single crystal-like yttria-stabilized zirconia (YSZ) thin films have been deposited on amorphous quartz, polycrystalline zirconia, single crystal Si, and Hastelloy substrates using dual ion beam deposition (IBAD). These films are highly crystallographically aligned both normal to and within the film plane. The films are deposited at low substrate temperatures (< 200 C), and the film orientation is substrate independent. 0--20 X-ray diffraction, X-ray rocking curves, X-ray pole figures and X-ray phi scans are used to evaluate the film structure. High resolution cross-sectional TEM is used to examine the evolution of crystallographic film alignment on an amorphous quartz substrate. The data suggest that the evolution of biaxial alignment is nucleation controlled under these conditions.

Ressler, K.G.; Sonnenberg, N.; Cima, M.J. [Massachusetts Inst. of Tech., Cambridge, MA (United States). Ceramics Processing Research Lab.

1996-12-31T23:59:59.000Z

276

Scanning TEM | EMSL  

NLE Websites -- All DOE Office Websites (Extended Search)

for converting biomass-derived light hydrocarbons and aromatics into a mixture of carbon monoxide and... Taking back the angels' share of atoms Posted: Monday, September 15,...

277

Energy  

Gasoline and Diesel Fuel Update (EIA)

Federal, State, local, and foreign governments, EIA survey respondents, and the media. For further information, and for answers to questions on energy statistics, please...

278

Energy  

NLE Websites -- All DOE Office Websites (Extended Search)

Energy Energy Energy Express Licensing Accelerator-Driven Transmutation Of Spent Fuel Elements Express Licensing Acid-catalyzed dehydrogenation of amine-boranes Express Licensing Air Breathing Direct Methanol Fuel Cell Express Licensing Aligned Crystalline Semiconducting Film On A Glass Substrate And Method Of Making Express Licensing Anion-Conducting Polymer, Composition, And Membrane Express Licensing Apparatus for Producing Voltage and Current Pulses Express Licensing Biaxially oriented film on flexible polymeric substrate Express Licensing Corrosion Test Cell For Bipolar Plates Express Licensing Device for hydrogen separation and method Negotiable Licensing Durable Fuel Cell Membrane Electrode Assembly (MEA) Express Licensing Energy Efficient Synthesis Of Boranes Express Licensing

279

Fact #710: January 16, 2012 Engine Energy Use for Heavy Trucks: Where Does the Energy Go?  

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

As with light vehicles, heavy trucks also have significant energy losses. The losses shown below are for a typical combination tractor-trailer, but these losses will vary depending on the weight,...

280

Novel Designs for Photovoltaic Arrays to Reduce Partial Shading Losses and to Ease Series Arc Fault Detection.  

E-Print Network (OSTI)

??A mismatch in a photovoltaic array implies differences in the I-V characteristics of the modules forming the array which can lead to significant energy losses… (more)

Shams El-Dein, Mohamed

2012-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "tem energy losses" 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

Energy Careers: Energy Assessor or Auditor | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Energy Careers: Energy Assessor or Auditor Energy Careers: Energy Assessor or Auditor Energy Careers: Energy Assessor or Auditor April 11, 2011 - 10:00am Addthis Andrea Spikes Communicator at DOE's National Renewable Energy Laboratory Last September, I blogged about how you can prepare for the heating season by getting an energy assessment for your home. This time, let's talk about the flipside: a career performing assessments. A home energy assessment is a series of tests that reveal energy leaks in a home such as air leaks, poor insulation, and hot water loss. By identifying sources of energy loss and making recommended changes, homeowners can save energy and money while reducing the use of fossil fuels. Read more about energy assessments and watch a video in our Home Energy Assessments section.

282

Energy Careers: Energy Assessor or Auditor | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Energy Careers: Energy Assessor or Auditor Energy Careers: Energy Assessor or Auditor Energy Careers: Energy Assessor or Auditor April 11, 2011 - 10:00am Addthis Andrea Spikes Communicator at DOE's National Renewable Energy Laboratory Last September, I blogged about how you can prepare for the heating season by getting an energy assessment for your home. This time, let's talk about the flipside: a career performing assessments. A home energy assessment is a series of tests that reveal energy leaks in a home such as air leaks, poor insulation, and hot water loss. By identifying sources of energy loss and making recommended changes, homeowners can save energy and money while reducing the use of fossil fuels. Read more about energy assessments and watch a video in our Home Energy Assessments section.

283

Surviving Biodiversity Loss in the Amazon  

NLE Websites -- All DOE Office Websites (Extended Search)

Surviving Biodiversity Loss in the Amazon You are what you eat, right down to the isotope ratios in your food April 1, 2014 Surviving Biodiversity Loss in the Amazon A Pipra...

284

Loss mechanisms in turbine tip clearance flows  

E-Print Network (OSTI)

Numerical simulations of tip clearance ow have been carried out to dene the loss generation mechanisms associated with tip leakage in unshrouded axial turbines. Mix- ing loss between the leakage, which takes the form of a ...

Huang, Arthur (Arthur C.)

2011-01-01T23:59:59.000Z

285

AC Loss of Ripple Current in Superconducting DC Power Transmission Cable  

Science Journals Connector (OSTI)

Abstract As a method of largely reducing the transmission loss in the electric power grid, superconducting direct current (DC) power transmission cable has been investigated. Using superconducting DC power transmission cables, large amounts of current and energy can be transferred compared to conventional copper cables. In this case, an alternating current (AC) is converted to DC and superposed AC which is known as ripple current, and the energy loss by the ripple current is generated. Therefore it is desired to estimate the energy loss density for the case of DC current and superposed AC current for a design of DC transmission cable system. In this study, the hysteresis loss for DC current of 2 kA rectified from 60 Hz alternating current is calculated using the Bean model, and coupling loss was also estimated. The diameter of the cable was 40 mm. The ripple currents generated by multi-pulse rectifiers, 6-pulse, 12-pulse, and 24-pulse were considered. It is found that the total AC loss including the hysteresis loss and the coupling loss is considerably smaller than the supposed heat loss of 0.5 W/m which is obtained with a newly developed cable.

K. Yoshitomi; E.S. Otabe; V.S. Vyatkin; M. Kiuchi; T. Matsushita; M. Hamabe; S. Yamaguchi; R. Inada

2014-01-01T23:59:59.000Z

286

$10 Billion Loan Loss Reserve for the Department's Loan Programs |  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

$10 Billion Loan Loss Reserve for the Department's Loan Programs $10 Billion Loan Loss Reserve for the Department's Loan Programs $10 Billion Loan Loss Reserve for the Department's Loan Programs November 17, 2011 - 11:33am Addthis In any portfolio of investments, there will be some individual companies that will succeed and some that won't. That is especially true for a program like this that was established to support American leadership in the most cutting edge, innovative companies. No one ever expected a 100 percent success rate, but those that do succeed will generate thousands of new jobs in the short term and pave the way for entire new industries in the long term. China, Germany, Korea and others understand the stakes and so do we: advanced auto manufacturing and clean energy are already huge global industries. The economic opportunities will grow dramatically in the years

287

Induction machine stray loss from inter-bar currents  

E-Print Network (OSTI)

Stray load loss refers generally to the sources of induction machine loss not accounted for by typical calculations of primary or secondary copper loss, no load core loss, or friction and windage loss. Harmonic rotor bar ...

Englebretson, Steven Carl

2009-01-01T23:59:59.000Z

288

World Best Practice Energy Intensity Values for Selected Industrial Sectors  

E-Print Network (OSTI)

Heat of reaction Steam, heating and losses Fractionation and compression Separation Total Note: Primary energy includes electricity generation, transmission, and distribution losses

Worrell, Ernst; Price, Lynn; Neelis, Maarten; Galitsky, Christina; Zhou, Nan

2007-01-01T23:59:59.000Z

289

Estimates of the Loss of Main-Chain Conformational Entropy of Different Residues on Protein Folding  

E-Print Network (OSTI)

Estimates of the Loss of Main-Chain Conformational Entropy of Different Residues on Protein Folding energy of protein folding is not well understood. We have developed empirical scales for the loss; protein folding; pro- tein engineering INTRODUCTION When a protein folds into a compact globule, the resi

Pal, Debnath

290

On the energy range relation for fast muons in rock  

Science Journals Connector (OSTI)

A discussion is given of the best estimate of various types of energy loss; the energy-range relation for muons in rock and water is then evaluated....?6 g?1 cm2 fractional «nuclear» energy losses respectively; w...

M. Mandò; L. Ronchi

1952-01-01T23:59:59.000Z

291

Future Accelerator Challenges in Support of High-Energy Physics  

E-Print Network (OSTI)

dx the rate of muon ionization energy loss in the absorberemission, whereas for muons it is energy loss (dE/dx) incollider, a Muon Collider has a reduced energy spread due

Zisman, M.S.

2008-01-01T23:59:59.000Z

292

Energy  

Office of Legacy Management (LM)

..) ".. ..) ".. _,; ,' . ' , ,; Depar?.me.nt ,of.' Energy Washington; DC 20585 : . ' , - $$ o"\ ' ~' ,' DEC ?;$ ;y4,,, ~ ' .~ The Honorable John Kalwitz , 200 E. Wells Street Milwaukee, W~isconsin 53202, . . i :. Dear,Mayor 'Kalwitz: " . " Secretary of Energy Hazel' O'Leary has announceha new,approach 'to,openness in " the Department of Ene~rgy (DOE) and its communications with'the public. In -. support of~this initiative, we areipleased to forward the enclosed information related to the Milwaukee Ai.rport site in your jurisdiction that performed work, for DOE orits predecessor agencies. information; use, and retention. ., This information .is provided for your '/ ,' DOE's Formerly Utilized Sites Remedial:'Action~'Prog&is responsible for ,"'

293

Computation of electric-arc parameters taking account of convective and radiant losses  

Science Journals Connector (OSTI)

An approximate solution of the problem of an electrical arc in a turbulent argon stream is obtained, taking into account convective and radiant energy losses in the discharge channel at atmospheric pressure.

N. A. Zyrichev

1971-10-01T23:59:59.000Z

294

Reducing Data Loss and Saving Money by Acquiring Data Loss Prevention Software  

E-Print Network (OSTI)

Reducing Data Loss and Saving Money by Acquiring Data Loss Prevention Software Master of Art data loss and saving money by acquiring DLP software Patarika Tipwong Acknowledgements This thesisPaul University. #12;Reducing data loss and saving money by acquiring DLP software Patarika Tipwong Table

Schaefer, Marcus

295

Projections of Full-Fuel-Cycle Energy and Emissions Metrics  

E-Print Network (OSTI)

function of the FFC energy intensity parameters. The FFCand c as the energy intensity of fuel production, defined asrepresenting the energy intensity and material losses at

Coughlin, Katie

2013-01-01T23:59:59.000Z

296

Small Business Energy Audit Program  

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

This matching grant provides 75% for a level 2 energy audit up to a maximum of $2,500. A Level 2 Energy audit will include quantifications of energy users and losses through a detailed review and...

297

Education Toolbox Search | Department of Energy  

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

Energy Usage Education Toolbox Search Education Toolbox Search Enter terms Search Retain current filters Showing 1 - 10 of 23 results. Download Reducing Energy Loss Students...

298

Education Toolbox Search | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Energy Usage Education Toolbox Search Education Toolbox Search Enter terms Search Retain current filters Showing 1 - 10 of 16 results. Download Reducing Energy Loss Students...

299

Education Toolbox Search | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Energy Usage Education Toolbox Search Education Toolbox Search Enter terms Search Retain current filters Showing 1 - 10 of 18 results. Download Reducing Energy Loss Students...

300

Energy Efficiency Loan Program Agreement Template | Department...  

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

Agreement Template Energy Efficiency Loan Program Agreement Template A template agreement demonstrating how to address the deposit and use of the loan loss reserve monies. Energy...

Note: This page contains sample records for the topic "tem energy losses" 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

Energy Efficiency Loan Program Agreement Template | Department...  

Energy Savers (EERE)

Energy Efficiency Loan Program Agreement Template Energy Efficiency Loan Program Agreement Template An agreement demonstrating how to address the deposit and use of the loan loss...

302

Unusual crystallographic structure and its fluctuation of indium nanoparticles as-deposited and observed with HRTEM using the UHV-DC-TEM system  

Science Journals Connector (OSTI)

A UHV-DC-TEM system was developed for direct transportation of samples between an ultra-high vacuum deposition chamber (UHV-DC) and a UHV transmission electron microscope (UHV-TEM). Indium nanoparticles have been deposited onto Si(110) TEM samples at room temperature in UHV-DC and observed in UHV-TEM with high resolution transmission electron microscopy (HRTEM). Freshly made indium nanoparticles were found to be single, twinned, pseudo-twinned crystals and decahedral multiply-twinned particles (MTPs) with their size in the range 8–15 nm. The structure of single crystalline indium nanoparticles is body-centered tetragonal (bct), which is the same as that of bulk indium. In addition to the usual {011} type twins for bct structure, a pseudo-twin was observed to have an orientation relationship as [111]A//[100]B and (101?)A//(01?1?)B. The structure of MTP indium is complicated because of the co-existence of bct and fcc structures within one nanocrystal. The structure fluctuation process has been examined using a video recorder with time scale down to 1/60 s. No complete liquid state was seen during this fluctuation.

Q. Chen; M. Tanaka; K. Furuya

1999-01-01T23:59:59.000Z

303

An Ultrahigh Resolution Structure of TEM-1 beta-Lactamase Suggests a Role for Glu166 as the General Base in Acylation  

SciTech Connect

Although TEM-1 {beta}-lactamase is among the best studied enzymes, its acylation mechanism remains controversial. To investigate this problem, the structure of TEM-1 in complex with an acylation transition-state analogue was determined at ultrahigh resolution (0.85 {angstrom}) by X-ray crystallography. The quality of the data was such as to allow for refinement to an R-factor of 9.1% and an R{sub free} of 11.2%. In the resulting structure, the electron density features were clear enough to differentiate between single and double bonds in carboxylate groups, to identify multiple conformations that are occupied by residues and loops, and to assign 70% of the protons in the protein. Unexpectedly, even at pH 8.0 where the protein was crystallized, the active site residue Glu166 is clearly protonated. This supports the hypothesis that Glu166 is the general base in the acylation half of the reaction cycle. This structure suggests that Glu166 acts through the catalytic water to activate Ser70 for nucleophilic attack on the {beta}-lactam ring of the substrate. The hydrolytic mechanism of class A {beta}-lactamases, such as TEM-1, appears to be symmetrical, as are the serine proteases. Apart from its mechanistic implications, this atomic resolution structure affords an unusually detailed view of the structure, dynamics, and hydrogen-bonding networks of TEM-1, which may be useful for the design of inhibitors against this key antibiotic resistance target.

Minasov, George; Wang, Xiaojun; Shoichet, Brian K. (NWU)

2010-03-08T23:59:59.000Z

304

System Losses Study - FIT (Fuel-cycle Integration and Tradeoffs)  

SciTech Connect

This team aimed to understand the broad implications of changes of operating performance and parameters of a fuel cycle component on the entire system. In particular, this report documents the study of the impact of changing the loss of fission products into recycled fuel and the loss of actinides into waste. When the effort started in spring 2009, an over-simplified statement of the objective was “the number of nines” – how would the cost of separation, fuel fabrication, and waste management change as the number of nines of separation efficiency changed. The intent was to determine the optimum “losses” of TRU into waste for the single system that had been the focus of the Global Nuclear Energy Program (GNEP), namely sustained recycle in burner fast reactors, fed by transuranic (TRU) material recovered from used LWR UOX-51 fuel. That objective proved to be neither possible (insufficient details or attention to the former GNEP options, change in national waste management strategy from a Yucca Mountain focus) nor appropriate given the 2009-2010 change to a science-based program considering a wider range of options. Indeed, the definition of “losses” itself changed from the loss of TRU into waste to a generic definition that a “loss” is any material that ends up where it is undesired. All streams from either separation or fuel fabrication are products; fuel feed streams must lead to fuels with tolerable impurities and waste streams must meet waste acceptance criteria (WAC) for one or more disposal sites. And, these losses are linked in the sense that as the loss of TRU into waste is reduced, often the loss or carryover of waste into TRU or uranium is increased. The effort has provided a mechanism for connecting these three Campaigns at a technical level that had not previously occurred – asking smarter and smarter questions, sometimes answering them, discussing assumptions, identifying R&D needs, and gaining new insights. The FIT model has been a forcing function, helping the team in this endeavor. Models don’t like “TBD” as an input, forcing us to make assumptions and see if they matter. A major addition in FY 2010 was exploratory analysis of “modified open fuel” cycles, employing “minimum fuel treatment” as opposed to full aqueous or electrochemical separation treatment. This increased complexity in our analysis and analytical tool development because equilibrium conditions do not appear sustainable in minimum fuel treatment cases, as was assumed in FY 2009 work with conventional aqueous and electrochemical separation. It is no longer reasonable to assume an equilibrium situation exists in all cases.

Steven J. Piet; Nick R. Soelberg; Samuel E. Bays; Robert S. Cherry; Denia Djokic; Candido Pereira; Layne F. Pincock; Eric L. Shaber; Melissa C. Teague; Gregory M. Teske; Kurt G. Vedros

2010-09-01T23:59:59.000Z

305

Reliability of Beam Loss Monitors System for the Large Hadron Collider  

E-Print Network (OSTI)

The employment of superconducting magnets, in the high energies colliders, opens challenging failure scenarios and brings new criticalities for the whole system protection. For the LHC beam loss protection system, the failure rate and the availability requirements have been evaluated using the Safety Integrity Level (SIL) approach. A downtime cost evaluation is used as input for the SIL approach. The most critical systems, which contribute to the final SIL value, are the dump system, the interlock system, the beam loss monitors system and the energy monitor system. The Beam Loss Monitors System (BLMS) is critical for short and intense particles losses, while at medium and higher loss time it is assisted by other systems, such as the quench protection system and the cryogenic system. For BLMS, hardware and software have been evaluated in detail. The reliability input figures have been collected using historical data from the SPS, using temperature and radiation damage experimental data as well as using standar...

Guaglio, Gianluca; Santoni, C

2004-01-01T23:59:59.000Z

306

A search for new physics with Z bosons, jets, and missing transverse energy at CMS  

E-Print Network (OSTI)

fractional energy loss grows with muon energy. The averageinteractions is flat with muon energy, but rare photonuclearmomentum of high energy muons and other charged particles.

Andrews, Warren T.

2012-01-01T23:59:59.000Z

307

Analysis of TPV Network Losses (a Presentation)  

SciTech Connect

This talk focuses on the theoretical analysis of electrical losses associated with electrically networking large numbers of TPV cells to produce high power TPV power generators.

DM DePoy; MW Dashiell; DD Rahner; LR Danielson; JE Oppenlander; JL Vell; RJ Wehrer

2004-12-08T23:59:59.000Z

308

Unsteady heat losses of underground pipelines  

Science Journals Connector (OSTI)

Analytic expressions are presented for the unsteady temperature distribution of the ground and heat losses of an underground pipeline for an arbitrary...

B. L. Krivoshein; V. M. Agapkin

1977-08-01T23:59:59.000Z

309

The Economic Case for Bulk Energy Storage in Transmission Systems  

E-Print Network (OSTI)

The Economic Case for Bulk Energy Storage in Transmission Systems with High Percentages to Engineer the Future Electric Energy System #12;#12;The Economic Case for Bulk Energy Storage Economic Case for Bulk Energy Storage in Transmission Sys- tems with High Percentages of Renewable

310

#AskEnergySaver: Home Water Heating | Department of Energy  

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

electric systems, like solar electric and onsite wind power, have substantial energy loss when converting electricity to heat. With solar thermal water heating, there are a...

311

Cost assessment of efficiency losses in hydroelectric plants  

Science Journals Connector (OSTI)

Some important real-time tasks of the independent system operator (ISO) are the monitoring and control of power system events (load deviations and contingencies). These events are usually managed by the ISO using operating reserve ancillary services. These services represent an additional capacity (MW) available in generators and some interruptible loads. Generators must change their operating points in order that this capacity can remain available. These changes might lead to efficiency losses in energy production. In systems with a high percentage of hydroelectric production, hydroelectric plants need to know the impact of ancillary services on their profits. This work therefore analyzes the cost of efficiency losses due to operating reserve availability in hydroelectric generators. A method to calculate this cost component is proposed using a unit commitment dispatch for a single hydroelectric plant. This dispatch is performed without considering the operating reserve availability and is compared with the traditional dispatch, which takes into account the availability of operating reserve. The proposal is used to calculate the cost of efficiency losses on a Brazilian hydroelectric generator. We found that the cost of efficiency losses can be considerable when compared to the incomes of a hydroelectric plant in the short-term market.

J.C. Galvis; A. Padilha-Feltrin; J.M. Yusta Loyo

2011-01-01T23:59:59.000Z

312

Electron microscopy and microanalysis Two transmission electron microscopes  

E-Print Network (OSTI)

Electron microscopy and microanalysis Two transmission electron microscopes (TEM) and three scanning electron micro- scopes (SEM) are operated by the De- partment. Attachments for TEM include energy dispersive X-ray spectrometer (EDS), scanning transmission attachment, serial electron energy loss

313

Handling Food and Supplies during Power Loss  

E-Print Network (OSTI)

ER-017 6-06 Loss of electricity or gas commonly occurs during storms or other natural disasters. However, power loss may continue for weeks after the storm has passed, especially if an area has been damaged by floods or high winds. If you...

Anding, Jenna

2005-09-30T23:59:59.000Z

314

A critical concern for embedded sys-tems is the need to deliver high levels of per-  

E-Print Network (OSTI)

- parison of standard configurations of Nokia 232 and Ericsson T68 phones). At the same time, mobile phones voltage scaling (DVS).1 Lowering clock frequency to the minimum required level exploits periods of low proces- sor utilization and allows a corresponding reduction in supply voltage. Because dynam- ic energy

Mudge, Trevor

315

Office Energy Checklist | Department of Energy  

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

to allow sunlight to naturally heat your workspace. At night, close the blinds to reduce heat loss. Checkbox Unplug equipment that drains energy when not in use (i.e. cell phone...

316

Electron loss of fast projectiles in collisions with molecules  

SciTech Connect

The single- and multiple-electron loss of fast highly charged projectiles in collisions with neutral molecules is studied within the framework of a nonperturbative approach. The cross sections for single-, double-, and triple-electron losses are calculated for the collision system Fe{sup q+}{yields}N{sub 2} (q=24, 25, 26) at the collision energies 10, 100, and 1000 MeV/nucleon. The effects caused by the collision multiplicity and the orientation of the axis of the target molecule are treated. It is shown that the collision multiplicity effect leads to considerable differences for the cases of perpendicular and parallel orientations of the molecular axes with respect to the direction of the projectile motion, while for chaotic orientation such an effect is negligible.

Matveev, V. I.; Makarov, D. N. [Pomor State University, 4 Lomonosov Street, 163002 Arkhangelsk (Russian Federation); Rakhimov, Kh. Yu. [Department of Physics, National University of Uzbekistan, 100174 Tashkent (Uzbekistan)

2011-07-15T23:59:59.000Z

317

The Need for Cooperation and Relaying in Short-Range High Path Loss Sensor Networks  

E-Print Network (OSTI)

path loss. In particular, a sensor network on the human body or BASN is considered. The energy a propagation model and a radio model for communication along the human body. Using these models, energy the human body is not always possible. Another problem may be possible tissue heating [4], [5]. This effect

318

Experimental investigation of the night heat losses of hot water storage tanks in thermosyphon solar water heaters  

Science Journals Connector (OSTI)

The effects of night heat losses on the performance of thermosyphon solar water heaters have been experimentally examined. Three typical thermosyphon solar water heating systems with different storage tank sizes were tested by utilising the method suggested by ISO 9459-2:95. The results were analysed to quantify the night heat losses and to investigate the effect that these may have on the system daily performance. Analysis of the results showed that a linear behavior of the heat losses with the night mean ambient temperature exists. The correlation coefficients of the linearity for the three systems under consideration range from 0.93 to 0.97 with the losses reaching almost 8000 kJ at a mean ambient air temperature of 10 °C. This value represents a significant percentage of the daily collected energy making the night losses one of the most important sources of energy loss in thermosyphonic systems.

Ioannis Michaelides; Polyvios Eleftheriou; George A. Siamas; George Roditis; Paraskevas Kyriacou

2011-01-01T23:59:59.000Z

319

Plant View On Reducing Steam Trap Energy Loss  

E-Print Network (OSTI)

of the steam traps are passing excess steam. This is caused by neglect of aged steam traps which have worn out and misapplication of steam traps by oversizing or using the 'wrong' type trap. Elimination of steam wastes by an effective well engineered steam trap...

Vallery, S. J.

1982-01-01T23:59:59.000Z

320

Energy Loss Function for Biological Material: Poly (CSP)  

Science Journals Connector (OSTI)

......Function for Biological Material: Poly (CSP) A.Y.C. Fung M. Zaider In this paper...the interaction of electrons with poly(CSP), a single-stranded chain that contains...Watson-Crick model for the geometry of poly(CSP) has been used. The use, for computational......

A.Y.C. Fung; M. Zaider

1994-04-01T23:59:59.000Z

Note: This page contains sample records for the topic "tem energy losses" 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

Bone loss during energy restriction: mechanistic role of leptin  

E-Print Network (OSTI)

&M University in partial fulfillment of the requirements for the degree of DOCTOR OF PHILOSOPHY Approved by: Co-Chairs of Committee, Susan A. Bloomfield Joanne R. Lupton Committee Members... of Leptin. (December 2007) Kyung hwa Baek, B.S., Seoul National University; Co-Chairs of Advisory Committee: Dr. Susan A. Bloomfield Dr. Joanne R. Lupton Mechanical unloading and food restriction...

Baek, Kyunghwa

2009-05-15T23:59:59.000Z

322

Anomalous loss of DT alpha particles in the Tokamak Fusion Test Reactor  

SciTech Connect

An escaping alpha collector probe has been developed for TFTR`s DT phase. Energy distributions of escaping alphas have been determined by measuring the range of {alpha}-particles implanted into nickel foils located within the alpha collector. Results at 1.0 MA of plasma current are in good agreement with predictions for first orbit alpha loss. Results at 1.8 MA, however, show a significant anomalous loss of partially thermalized alphas (in addition to the expected first orbit loss), which is not observed with the lost alpha scintillator detectors in DT plasmas, but does resemble the anomalous delayed loss seen in DD plasmas. None of the candidate explanations proposed thus far are fully consistent with the anomalous loss observations. An experiment designed to study the effect of plasma major radius shifts on {alpha}-particle loss has led to a better understanding of {alpha}-particle dynamics in tokamaks. Intuitively, one might suppose that confined marginally passing {alpha}-particles forced to move toward higher magnetic field during an inward major radius shift (i.e., compression) would mirror and become trapped particles, leading to increased alpha loss. Such an effect was looked for during the shift experiment, however, no significant changes in alpha loss to the 90{degree} lost alpha scintillator detector were observed during the shifts. It is calculated that the energy gained by an {alpha}-particle during the inward shift is sufficient to explain this result. However, an unexpected loss of partially thermalized {alpha}-particles near the passing/trapped boundary was observed to occur between inward and outward shifts at an intermediate value of plasma current (1.4 MA). This anomalous loss feature is not yet understood.

Herrmann, H.W.

1997-09-01T23:59:59.000Z

323

Heat Loss Measurement Using Infrared Imaging  

E-Print Network (OSTI)

in various applications. Examples of two applications are presented. The first describes the development of heat balance data for a solvent refined coal processing unit. The second describes the measurement of heat loss and thermal resistance in a double...

Seeber, S. A.

1983-01-01T23:59:59.000Z

324

Reduction of Hydrocarbon Losses to Flare Systems  

E-Print Network (OSTI)

merit consideration because the losses and associated economic penalties are assumed to be small. Flare gas flow is not easily measured and as a result, most plants are unaware of how much product they are actually losing during normal operation...

Page, J.

1979-01-01T23:59:59.000Z

325

Corona losses in HVdc bipolar lines  

SciTech Connect

The problem related to the prediction of corona losses in HVdc bipolar lines has been solved, in the past, by means of semi-empirical monomial formulae. However, the proposed formulae that are simpler to use do not always give adequate calculation precision, while the formulae that provide the closest results require implicit functions of different complexity, which are difficult to apply; moreover, it is not possible to understand clearly what influence the variations of the different line parameters have on the losses themselves. The new monomial semi-empirical relationship, proposed to predict the corona losses in HVdc bipolar lines, is very simple to use; it highlights the dependence of power losses due to the corona effect by the different line parameters. The formula has been developed by elaborating a considerable amount of available experimental data.

Corbellini, U.; Pelacchi, P. [Univ. of Pisa (Italy). Dept. of Electric Systems and Automation] [Univ. of Pisa (Italy). Dept. of Electric Systems and Automation

1996-07-01T23:59:59.000Z

326

Structuring Credit Enhancements for Clean Energy Finance Programs (Text Version)  

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

Below is a text version of the January 15, 2010 Structuring Loan Loss Reserve Funds for Clean Energy Finance Programs.

327

ENERGY CONSERVATION AND THE ENVIRONMENT: CONFLICT OR COMPLEMENT?  

E-Print Network (OSTI)

have greater economic value than the coal consumed, and theeconomic meaning. Large energy losses incurred in making coal,

Schipper, L.

2011-01-01T23:59:59.000Z

328

Do-It-Yourself Energy Savings Projects | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Hot Water Pipes for Energy Savings Steps for insulating your hot water pipes to reduce heat loss and raise water temperature. Insulating water pipes can save you water, energy,...

329

Head Loss Through Fibrous Debris Bed with Different Types of Perforated Strainers  

E-Print Network (OSTI)

Loss of Coolant Accident LWR Light Water Reactor MBLOCA Medium Break Loss of Coolant Accident MSDS Material Safety Data Sheet NEI Nuclear Energy Institute NIST National Institute of Standards and Technology NPP Nuclear Power Plants NPSH Net... than the randomly generated debris bed on the sump strainer of the NPP. The U.S. NRC began their analysis in 1996 in order to predict and estimate the loss of the Net Positive Suction Head (NPSH) by establishing GSI-191. In 1995, NUREG/CR-6224...

Abdulsattar, Suhaeb S

2014-05-03T23:59:59.000Z

330

Field synergy principle analysis for reducing natural convection heat loss of a solar cavity receiver  

Science Journals Connector (OSTI)

Abstract Due to the operating temperature from 900 K to 1300 K produced by the concentrating ratio over 2000 in solar parabolic dish-engine system, the natural convection heat loss driven by the buoyancy force of air contributes an important role in the energy loss of cavity receiver. 3-D numerical simulations were performed and the results are analyzed from the novel viewpoint of field synergy principle (FSP) in order to study the heat transfer and fluid flow characteristics in natural convection heat loss of cavity receiver. The effects of geometric parameters, including the inclination angle, aperture size, aperture position and cavity geometric shape on the natural convection heat loss of cavity receiver were examined. The FSP analysis on the simulation results demonstrates that FSP can well explain the reduction mechanism for natural convection heat loss of cavity receiver because the smaller inner production of velocity vector and temperature gradient always corresponds to the lower Nusselt number occurred in the cases with lager inclination angle, smaller aperture size, lower aperture position and frustum-cylinder cavity, respectively. Therefore, the reducing natural convection heat loss attributes to the weakening synergy between velocity vector and temperature gradient. In addition, the local heat transfer performance is studied by the presented distributions of heat transferred via fluid motion, where more interesting natural convection heat loss characteristics of cavity receiver and the detailed explanations were provided. The results of this work offer benefits for the development of theory and technique about reducing natural convection heat loss of cavity receiver.

Yuqiang Li; Gang Liu; Zhenghua Rao; Shengming Liao

2015-01-01T23:59:59.000Z

331

Radiant energy collector. [Patent application  

DOE Patents (OSTI)

A cylindrical radiant energy collector is provided which includes a reflector spaced apart from an energy absorber. The reflector is of a particular shape which ideally eliminates gap losses.

McIntire, W.R.

1980-02-14T23:59:59.000Z

332

Tuning Fuzzy Logic Controllers for Energy Efficiency Consumption in Buildings  

E-Print Network (OSTI)

- tems 1 Introduction In EU countries, primary energy consumption in build- ings represents about 40Tuning Fuzzy Logic Controllers for Energy Efficiency Consumption in Buildings R. Alcal´a DECSAI 18071 ­ Granada, Spain e-mail: A.Gonzalez@decsai.ugr.es Abstract In EU countries, primary energy consump

Casillas Barranquero, Jorge

333

Optical design of electron microscope lenses and energy filters  

Science Journals Connector (OSTI)

......Two-stage elearon energy analyzer Czech Republic...Academic Press New York) piece for a transmission...Academic Press, New York). 47 Tang T T...T.!.!.2 : Energy-filtering Transmission...Proposal of a new energy filter for TEM......

K Tsuno

1999-01-01T23:59:59.000Z

334

Sudden loss of mass from a binary gravitating system  

Science Journals Connector (OSTI)

A recent discussion by Mitalas is generalized to treat sudden mass loss from a binary system in an originally e l l i p t i c a l orbit. Emphasis is placed on characterizing the orbits by angular momentum and energy and it is shown that none of the changes in the r e l a t i v e orbit depends on which object loses part of its mass; indeed in principle each could lose a different fraction. Time averages are introduced so that the orbital changes which depend on w h e r e in orbit the mass loss occurs can be suitably averaged over a statistical ensemble of initial systems. Although I present several results that appear to be new (such as a unique relation between the increase in the semimajor axis and the change in eccentricity independent of the orbital phase at the moment of mass loss) the main thrust is to choose and manipulate variables yielding the greatest economy of description and the greatest power of computation. (All calculations were easily done on a pocket calculator.) Graphs are presented showing the fraction of systems that on the average will be disrupted the mean orbital changes for the survivors (which can easily turn out to have s m a l l e r mean eccentricity than the progenitors) and the extreme limits for the change in eccentricity.

Peter D. Noerdlinger

1982-01-01T23:59:59.000Z

335

Ris Energy Report 5 Biomass biomass is one of few non-fluctuating renewable energy  

E-Print Network (OSTI)

Risø Energy Report 5 Biomass 6.2 biomass is one of few non-fluctuating renewable energy resources- tem. Alongside stored hydro and geothermal, this sets biomass apart from most other renewables such as wind power, which must be used when available. A proportion of biomass is therefore attractive

336

U.S. Department of Energy Breaks Ground on State-of-the-Art Wind...  

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

and manufacturers continue to drive down the cost of wind energy by reducing the aerodynamic losses of wind energy plants, enhancing energy capture, and mitigating turbine...

337

880 IEEE TRANSACTIONS ON POWER SYSTEMS, VOL. 19, NO. 2, MAY 2004 Marginal Loss Modeling in LMP Calculation  

E-Print Network (OSTI)

) as a mechanism to build efficient energy markets. LMP is part of the standard market design (SMD) promoted the cost of producing energy, but also its delivery. Losses and/or trans- mission network congestion may (SMD) project implemented by ALSTOM's T&D Energy Automation and Information (EAI) Business. The tradi

McCalley, James D.

338

Fact #709: January 9, 2012 Engine Energy Use: Where Does the...  

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

information below. Supporting Information Share of Energy Losses in a Typical Car Loss Type Combined City Highway Engine Losses 70-72% 74-75% 65-69% Thermal - radiator,...

339

Reducing the losses of optical metamaterials  

SciTech Connect

The field of metamaterials is driven by fascinating and far-reaching theoretical visions, such as perfect lenses, invisibility cloaking, and enhanced optical nonlinearities. However, losses have become the major obstacle towards real world applications in the optical regime. Reducing the losses of optical metamaterials becomes necessary and extremely important. In this thesis, two approaches are taken to reduce the losses. One is to construct an indefinite medium. Indefinite media are materials where not all the principal components of the permittivity and permeability tensors have the same sign. They do not need the resonances to achieve negative permittivity, {var_epsilon}. So, the losses can be comparatively small. To obtain indefinite media, three-dimensional (3D) optical metallic nanowire media with different structures are designed. They are numerically demonstrated that they are homogeneous effective indefinite anisotropic media by showing that their dispersion relations are hyperbolic. Negative group refraction and pseudo focusing are observed. Another approach is to incorporate gain into metamaterial nanostructures. The nonlinearity of gain is included by a generic four-level atomic model. A computational scheme is presented, which allows for a self-consistent treatment of a dispersive metallic photonic metamaterial coupled to a gain material incorporated into the nanostructure using the finite-difference time-domain (FDTD) method. The loss compensations with gain are done for various structures, from 2D simplified models to 3D realistic structures. Results show the losses of optical metamaterials can be effectively compensated by gain. The effective gain coefficient of the combined system can be much larger than the bulk gain counterpart, due to the strong local-field enhancement.

Fang, Anan

2010-12-15T23:59:59.000Z

340

Reducing Livestock Losses To Toxic Plants  

E-Print Network (OSTI)

,Extension CommunicationsSpecialistTheTexasA&MUniversitySystem. Cover design byRhondaKappler, ExtensionCommercial Artist Reducing Livestock Losses to Toxic Plants Allan McGinty and Rick Machen* More than 100 species of toxic plants in- fest Texas rangelands. These plants... and Sons: New York, N.Y. Lane, M. A., M. H. Ralphs, J. D. Olsen, F. D. Provenza and J. A. Pfister. 1990. ?Conditioned taste aversion: potentialfor reducing cattle loss to larkspur.? Journal ofRangeManagement. 43:127-131. McGinty, Allan and Tommy G. Welch...

McGinty, Allan; Machen, Richard V.

2000-04-25T23:59:59.000Z

Note: This page contains sample records for the topic "tem energy losses" 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

Loss modeling for pricing catastrophic bonds  

E-Print Network (OSTI)

in Figure 3-1: DBE bc bc c k a DBE DBE a DBE SLf LSf ? ? ? == = (3.7) Thus, by following the arrows in Figure 3-1, loss can be directly related to annual frequency. Simplifying (3.7) gives d DBE DBE Lf Lf = (3.8) where the exponents are inter... in Figure 3-1: DBE bc bc c k a DBE DBE a DBE SLf LSf ? ? ? == = (3.7) Thus, by following the arrows in Figure 3-1, loss can be directly related to annual frequency. Simplifying (3.7) gives d DBE DBE Lf Lf = (3.8) where the exponents are inter...

Sircar, Jyotirmoy

2009-05-15T23:59:59.000Z

342

Draft "Michigan Saves" Loan Loss Reserve Fund Agreement  

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

A sample loan loss reserve agreement between a state or local government and a financial institution setting the terms and conditions of the loan loss reserve fund.

343

Lagrangian Framework for Systems Composed of High-Loss and Lossless Components  

E-Print Network (OSTI)

Using a Lagrangian mechanics approach, we construct a framework to study the dissipative properties of systems composed of two components one of which is highly lossy and the other is lossless. We have shown in our previous work that for such a composite system the modes split into two distinct classes, high-loss and low-loss, according to their dissipative behavior. A principal result of this paper is that for any such dissipative Lagrangian system, with losses accounted by a Rayleigh dissipative function, a rather universal phenomenon occurs, namely, selective overdamping: The high-loss modes are all overdamped, i.e., non-oscillatory, as are an equal number of low-loss modes, but the rest of the low-loss modes remain oscillatory each with an extremely high quality factor that actually increases as the loss of the lossy component increases. We prove this result using a new time dynamical characterization of overdamping in terms of a virial theorem for dissipative systems and the breaking of an equipartition of energy.

Alex Figotin; Aaron Welters

2013-12-31T23:59:59.000Z

344

AC-loss considerations of a pulse SMES for an accelerator  

Science Journals Connector (OSTI)

In particle accelerators quasi-DC superconducting magnets are used to keep particles in desired tracks. The needed rapid field variations of these high energy magnets require large energy bursts. If these bursts are taken from and fed back to the utility grid, its voltage is distorted and the quality of the electricity degrades. In addition, these bursts may decrease operation life time of generators and extra arrangements may be required by the electricity producers. Thus, an energy storage is an essential component for a cost-effective particle accelerator. Flywheels, capacitors and superconducting magnetic energy storage (SMES) are possible options for these relatively large and high power energy storages. Here we concentrate on AC-loss of a pulse SMES aiming to demonstrate the feasibility of NbTi SMES in a particle accelerator. The designing of a SMES requires highly reliable AC-loss simulations. In this paper, calorimetric AC-loss measurements of a NbTi magnet have been carried out to consider conductor's suitability in a pulse SMES. In addition, the measured results are compared with AC-loss simulations.

M Lyly; I Hiltunen; J Järvelä; A Korpela; L Lehti; A Stenvall; R Mikkonen

2010-01-01T23:59:59.000Z

345

LHC magnet quench test with beam loss generated by wire scan  

E-Print Network (OSTI)

Beam losses with millisecond duration have been observed in the LHC in 2010 and 2011. They are thought to be provoked by dust particles falling into the beam. These losses could compromise the LHC availability if they provoke quenches of superconducting magnets. In order to investigate the quench limits for this loss mechanism, a quench test using a wire scanner has been performed, with the wire movement through the beam mimicking a loss with similar spatial and temporal distribution as in the case of dust particles. This paper will show the conclusions reached for millisecond-duration dust-provoked quench limits. It will include details on the maximum energy deposited in the coil as estimated using FLUKA code, showing a reasonable agreement with quench limit estimated from the heat transfer code QP3. In addition, information on the damage limit for carbon wires in proton beamswill be presented, following electronmicroscope analysis which revealed strong wire sublimation.

Sapinski, M; Dahlerup-Petersen, K; Dehning, B; Emery, j; Ferrari, A; Guerrero, A; Holzer, E B; Koujili, M; Lechner, A; Nebot, E; Scheubel, M; Steckert, J; Verweij, A; Wenninger, J

2011-01-01T23:59:59.000Z

346

Cryogenic Beam Loss Monitors for the Superconducting Magnets of the LHC  

E-Print Network (OSTI)

The Beam Loss Monitor detectors close to the interaction points of the Large Hadron Collider are currently located outside the cryostat, far from the superconducting coils of the magnets. In addition to their sensitivity to lost beam particles, they also detect particles coming from the experimental collisions, which do not contribute significantly to the heat deposition in the superconducting coils. In the future, with beams of higher energy and brightness resulting in higher luminosity, distinguishing between these interaction products and dangerous quench-provoking beam losses from the primary proton beams will be challenging. The system can be optimised by locating beam loss monitors as close as possible to the superconducting coils, inside the cold mass in a superfluid helium environment, at 1.9 K. The dose then measured by such Cryogenic Beam Loss Monitors would more precisely correspond to the real dose deposited in the coil. The candidates under investigation for such detectors are based on p+-n-n+ si...

Bartosik, MR; Sapinski, M; Kurfuerst, C; Griesmayer, E; Eremin, V; Verbitskaya, E

2014-01-01T23:59:59.000Z

347

Energy Savings Through Steam Trap Management  

E-Print Network (OSTI)

Energy Savings through Steam Trap Management Chris Gibbs, Account Manager, Armstrong International, Inc., Three Rivers, MI ESL-IE-08-05-08 Proceedings from theThirtieth Industrial Energy Technology Conference...-based steam trap management application developed by Armstrong International. The application calculates steam loss, fuel loss, dollar loss and CO 2 emission generation. The database allows for trend analysis, automatic energy report generation...

Gibbs, C.

2008-01-01T23:59:59.000Z

348

ENHANCED LOSS OF FAST IONS DURING  

E-Print Network (OSTI)

(Princeton Plasma Physics Laboratory, Princeton University, Princeton, New Jersey, United States of America in a large increase in the fast ion loss rate and heats the lost particles to several megaelectronvolts. The lost ions are observed at the passing-trapped boundary and appear to be either DD fusion produced

349

Reducing food losses by intelligent food logistics  

Science Journals Connector (OSTI)

...1006 62 Theme Issue Intelligent food logistics: decrease waste and improve quality...Reducing food losses by intelligent food logistics Reiner Jedermann 1 Mike Nicometo 2 Ismail...Bremen Research Cluster for Dynamics in Logistics (LogDynamics), Bremen, Germany One...

2014-01-01T23:59:59.000Z

350

Nonlinear Losses Induced in Spherical Waves  

Science Journals Connector (OSTI)

From Naugol'nykh's spherical sawtooth?wave solution curves are constructed which predict the nonlinear induced extra loss in fundamental amplitude. As in the plane wave case the propagation path can be split into three zones. In the first zone nonlinear effects dominate over attenuation. In the second zone a stable distorted waveform is propagated. In the third zone attenuation reduces the amplitude so that nonlinear effects are no longer important. Although the predicted losses are smaller than in the plane wave case they are not negligible. A criterion for cavitation is used in order to define depths in the ocean where cavitation will be the limiting factor on sound power level and not extra losses. By considering a specific example it is concluded that cavitation will indeed be the limiting factor down to a depth of about 2000 ft. At depths below 2000 ft extra losses can become significant for propagation from steady?state spherical sources operating below the cavitation threshold.

Boyd B. Cary

1967-01-01T23:59:59.000Z

351

Education Toolbox Search | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Consumption Education Toolbox Search Education Toolbox Search Enter terms Search Retain current filters Showing 1 - 10 of 15 results. Download Reducing Energy Loss Students will...

352

Education Toolbox Search | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Consumption Education Toolbox Search Education Toolbox Search Enter terms Search Retain current filters Showing 1 - 10 of 16 results. Download Reducing Energy Loss Students will...

353

Education Toolbox Search | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Usage Education Toolbox Search Education Toolbox Search Enter terms Search Retain current filters Showing 1 - 10 of 15 results. Download Reducing Energy Loss Students will learn...

354

Methanol as a Hydrogen and Energy Carrier  

Science Journals Connector (OSTI)

The high losses during conversion from renewable power to secondary energy carriers and repowering constitute a general disadvantage. In... 1. Env...

Ludolf Plass; Martin Bertau…

2014-01-01T23:59:59.000Z

355

Oxygen-Enriched Combustion | Department of Energy  

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

tip sheet discusses how an increase in oxygen in combustion air can reduce the energy loss in the exhaust gases and increase process heating system efficiency. PROCESS HEATING...

356

Magnetization losses in superconducting YBCO conductor-on-round-core (CORC) cables  

Science Journals Connector (OSTI)

Described are the results of magnetization loss measurements made at 77 K on several YBCO conductor-on-round-core (CORC) cables in ac magnetic fields of up to 80 mT in amplitude and frequencies of 50 to 200 Hz, applied perpendicular to the cable axis. The cables contained up to 40 tapes that were wound in as many as 13 layers. Measurements on the cables with different configurations were made as functions of applied ac field amplitude and frequency to determine the effects of their layout on ac loss. In large scale devices such as e.g. Superconducting Magnetic Energy Storage (SMES) magnets, the observed ac losses represent less than 0.1% of their stored energy.

M Majoros; M D Sumption; E W Collings; D C van der Laan

2014-01-01T23:59:59.000Z

357

Regularization strategy for the layered inversion of airborne TEM data: application to VTEM data acquired over the basin of Franceville (Gabon)  

E-Print Network (OSTI)

Airborne transient electromagnetic (TEM) is a cost-effective method to image the distribution of electrical conductivity in the ground. We consider layered earth inversion to interpret large data sets of hundreds of kilometre. Different strategies can be used to solve this inverse problem. This consists in managing the a priori information to avoid the mathematical instability and provide the most plausible model of conductivity in depth. In order to obtain fast and realistic inversion program, we tested three kinds of regularization: two are based on standard Tikhonov procedure which consist in minimizing not only the data misfit function but a balanced optimization function with additional terms constraining the lateral and the vertical smoothness of the conductivity; another kind of regularization is based on reducing the condition number of the kernel by changing the layout of layers before minimizing the data misfit function. Finally, in order to get a more realistic distribution of conductivity, notably...

Guillemoteau, Julien; Behaegel, Mickael; 10.1111/j.1365-2478.2011.00990.x

2012-01-01T23:59:59.000Z

358

A Loss-Minimization DTC Scheme for EV Induction Motors A. Haddoun1  

E-Print Network (OSTI)

of an induction motor propelling and Electric Vehicle (EV). The proposed control strategy, based on a Direct Flux, among EV's motor electric propulsion features; the energy efficiency is a basic characteristic and the performance of the proposed control approach. Index Terms--Electric vehicle, induction motor, DTC, loss

Paris-Sud XI, Université de

359

The remote and exposed location of Gorno Badakhshan, combined with the loss of  

E-Print Network (OSTI)

, it will be crucial to use a distinctly higher share of production for added value. Hydro power potential In the GBAO35 The remote and exposed location of Gorno Badakhshan, combined with the loss of coal and diesel overexploited. Enforced utilisation of the abundant hydro resources and other renewable energy sources, as well

Richner, Heinz

360

DECENTRALIZED VOLTAGE CONTROL TO MINIMIZE DISTRIBUTION LOSSES IN AN ISLANDED MICROGRID  

E-Print Network (OSTI)

power sources and energy storage systems such as batteries requires new power and voltage control-time voltage control algorithm that minimizes power losses for a microgrid supported by inverter based Microgrids can bring electricity power to rural communities or isolated military forward operation bases

Peng, Huei

Note: This page contains sample records for the topic "tem energy losses" 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

Tuneable dielectric films having low electrical losses  

DOE Patents (OSTI)

The present invention is directed to a method for forming dielectric thin films having substantially reduced electrical losses at microwave and millimeter wave frequencies relative to conventional dielectric thin films. The reduction in losses is realized by dramatically increasing the grain sizes of the dielectric films, thereby minimizing intergranular scattering of the microwave signal due to grain boundaries and point defects. The increase in grain size is realized by heating the film to a temperature at which the grains experience regrowth. The grain size of the films can be further increased by first depositing the films with an excess of one of the compoents, such that a highly mobile grain boundary phase is formed.

Dimos, Duane Brian (Albuquerque, NM); Schwartz, Robert William (Albuquerque, NM); Raymond, Mark Victor (Albuquerque, NM); Al-Shareef, Husam Niman (Boise, ID); Mueller, Carl (Lakewood, CO); Galt, David (Denver, CO)

2000-01-01T23:59:59.000Z

362

Axial power loss along open field lines  

SciTech Connect

Studies are underway to evaluate the linear mirror geometry as a candidate for a high-fluence, neutron irradiation facility. This steady-state, low-Q design is currently perceived to comprise a two-component plasma driven by neutral beams with mirror confinement of the hot ions and with no electrostatic axial reduction in the warm ion end losses. Warm-ion fueling and end-wall power density will require substantial cold plasma exterior to the mirror cell and neutral gas near the end wall. In this paper, we evaluate to what extent the loss power parallel to the axial magnetic field along open field lines is a function of the escaping plasma and end-wall parameters. By allowing the source power to depend directly on the plasma density and electron temperature, several new conclusions may be pertinent to closed field-line geometries with open field-line divertors.

Correll, D.L.

1987-08-01T23:59:59.000Z

363

Scannerless loss modulated flash color range imaging  

DOE Patents (OSTI)

Scannerless loss modulated flash color range imaging methods and apparatus are disclosed for producing three dimensional (3D) images of a target within a scene. Apparatus and methods according to the present invention comprise a light source providing at least three wavelengths (passbands) of illumination that are each loss modulated, phase delayed and simultaneously directed to illuminate the target. Phase delayed light backscattered from the target is spectrally filtered, demodulated and imaged by a planar detector array. Images of the intensity distributions for the selected wavelengths are obtained under modulated and unmodulated (dc) illumination of the target, and the information contained in the images combined to produce a 3D image of the target.

Sandusky, John V. (Albuquerque, NM); Pitts, Todd Alan (Rio Rancho, NM)

2008-09-02T23:59:59.000Z

364

Scannerless loss modulated flash color range imaging  

DOE Patents (OSTI)

Scannerless loss modulated flash color range imaging methods and apparatus are disclosed for producing three dimensional (3D) images of a target within a scene. Apparatus and methods according to the present invention comprise a light source providing at least three wavelengths (passbands) of illumination that are each loss modulated, phase delayed and simultaneously directed to illuminate the target. Phase delayed light backscattered from the target is spectrally filtered, demodulated and imaged by a planar detector array. Images of the intensity distributions for the selected wavelengths are obtained under modulated and unmodulated (dc) illumination of the target, and the information contained in the images combined to produce a 3D image of the target.

Sandusky, John V. (Albuquerque, NM); Pitts, Todd Alan (Rio Rancho, NM)

2009-02-24T23:59:59.000Z

365

CryoTEM (Tecnai) | EMSL  

NLE Websites -- All DOE Office Websites (Extended Search)

image tilt series to be obtained for three-dimensional reconstruction using electron tomography, and (2) a cryostage for observing samples in a frozen-hydrated state. The T-12...

366

Assessing Phosphorous Loss to Protect Surface Water  

E-Print Network (OSTI)

Phosphorus LossStory by Raul L. Garcia The Texas State Soil and Water ConservationBoard (TSSWCB) in collaboration with the Department of Soil and Crop Sciences at Texas A&M University, Texas Cooperative Extension (TCE), Texas Water Resources... Institute (TWRI), and the U.S. Department of Agriculture's Natural Resource Conservation Service (NRCS), have developed a field validation of the Texas Phosphorus Index. This project, located near Bosque and Leon Rivers, began June 1, 2002, and ended...

Garcia, Raul

2005-01-01T23:59:59.000Z

367

Recent Stirling engine loss - understanding results  

SciTech Connect

For several years, the National Aeronautics and Space Administration and other US Government agencies have been funding experimental and analytical efforts to improve the understanding of Stirling thermodynamic losses. NASA`s objective is to improve Stirling engine design capability to support the development of new engines for space power. An overview of these efforts was last given at the 1988 IECEC. Recent results of this research are reviewed.

Tew, R.C.; Thieme, L.G.; Dudenhoefer, J.E.

1994-09-01T23:59:59.000Z

368

Edge localized mode particle losses from the DIII-D tokamak  

Science Journals Connector (OSTI)

Particle losses associated with edge localized mode(ELM) activity on the DIII-D tokamak [J. Luxon et al. Proceedings of the 11th International Conference on Plasma Physics and Controlled Nuclear Fusion(International Atomic Energy Agency Vienna 1986 Vol. I p. 159] are evaluated quantitatively using density profile data obtained from a Thomson scattering system. It is shown that up to 10% of the total core particle content is lost with each ELM. The particle loss varies inversely with ELM frequency. The temporally averaged ELM particle loss is shown to be about 25% of the total particle loss from the confined region under a wide variety of plasma conditions. Although this ELM loss is a small fraction of the total ion flux it is large compared to the particle input from neutral beam heating. Hence ELM particle losses are sufficient to control the density rise associated with H-modeplasma operation with neutral beam heating. In addition to controlling the average density by enhancing the total ion flow albeit only by 25% it is posited that the ELMs play a role in determining the density profile in the H-mode pedestal region.

G. D. Porter; T. A. Casper; J. M. Moller

2001-01-01T23:59:59.000Z

369

Reliability of Beam Loss Monitors System for the Large Hadron Collider  

Science Journals Connector (OSTI)

The employment of superconducting magnets in high energy colliders opens challenging failure scenarios and brings new criticalities for the whole system protection. For the LHC beam loss protection system the failure rate and the availability requirements have been evaluated using the Safety Integrity Level (SIL) approach. A downtime cost evaluation is used as input for the SIL approach. The most critical systems which contribute to the final SIL value are the dump system the interlock system the beam loss monitors system and the energy monitor system. The Beam Loss Monitors System (BLMS) is critical for short and intense particle losses while at medium and higher loss time it is assisted by other systems such as the quench protection system and the cryogenic system. For BLMS hardware and software have been evaluated in detail. The reliability input figures have been collected using historical data from the SPS using temperature and radiation damage experimental data as well as using standard databases. All the data have been processed by reliability software (Isograph). The analysis ranges from the components data to the system configuration.

G. Guaglio; B. Dehning; C. Santoni

2004-01-01T23:59:59.000Z

370

Reliability of Beam Loss Monitor Systems for the Large Hadron Collider  

Science Journals Connector (OSTI)

The increase of beam energy and beam intensity together with the use of super conducting magnets opens new failure scenarios and brings new criticalities for the whole accelerator protection system. For the LHC beam loss protection system the failure rate and the availability requirements have been evaluated using the Safety Integrity Level (SIL) approach. A downtime cost evaluation is used as input for the SIL approach. The most critical systems which contribute to the final SIL value are the dump system the interlock system the beam loss monitors system and the energy monitor system. The Beam Loss Monitors System (BLMS) is critical for short and intense particles losses at 7 TeV and assisted by the Fast Beam Current Decay Monitors at 450 GeV. At medium and higher loss time it is assisted by other systems such as the quench protection system and the cryogenic system. For BLMS hardware and software have been evaluated in detail. The reliability input figures have been collected using historical data from the SPS using temperature and radiation damage experimental data as well as using standard databases. All the data has been processed by reliability software (Isograph). The analysis spaces from the components data to the system configuration.

G. Guaglio; B. Dehning; C. Santoni

2005-01-01T23:59:59.000Z

371

Temporary Losses of Highway Capacity and Impacts on Performance  

NLE Websites -- All DOE Office Websites (Extended Search)

3 3 Temporary Losses of Highway Capacity and Impacts on Performance May 2002 Prepared by S. M. Chin O. Franzese D. L. Greene H. L. Hwang Oak Ridge National Laboratory Oak Ridge, Tennessee R. C. Gibson The University of Tennessee Knoxville, Tennessee DOCUMENT AVAILABILITY Reports produced after January 1, 1996, are generally available free via the U.S. Department of Energy (DOE) Information Bridge: Web site: http://www.osti.gov/bridge Reports produced before January 1, 1996, may be purchased by members of the public from the following source: National Technical Information Service 5285 Port Royal Road Springfield, VA 22161 Telephone: 703-605-6000 (1-800-553-6847) TDD: 703-487-4639 Fax: 703-605-6900 E-mail: info@ntis.fedworld.gov

372

Energy Efficiency | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Efficiency Efficiency Energy Efficiency From the incandescent to CFLs to LEDs, we're exploring the long history of the light bulb and how it led to new technology breakthroughs. From the incandescent to CFLs to LEDs, we're exploring the long history of the light bulb and how it led to new technology breakthroughs. Every year, much of the energy the U.S. consumes is wasted through transmission, heat loss and inefficient technology -- costing American families and businesses money, and leading to increased carbon pollution. Energy efficiency is one of the easiest and most cost effective ways to combat climate change, clean the air we breathe, improve the competitiveness of our businesses and reduce energy costs for consumers.

373

Evaluation of Heat Losses in Fire Tube Boiler  

E-Print Network (OSTI)

Abstract – The efficiency of oil fired fire tube boiler was calculated by evaluating the heat losses. Investigation on the performance of the boiler was conducted by examining the heat losses, identifying the reasons for losses, measuring the individual loss and developing a strategy for loss reduction. This study was carried out in Texmaco package horizontal fire tube boiler at Travancore Titanium Products Ltd (TTPL), Trivandrum, Kerala. The boiler efficiency was measured by indirect method. Heat losses in dry flue gas and due to unburned fuel were found to be the major problems. Since they were interrelated, installation of Zirconium oxygen sensor was recommended as a common remedy.

S. Krishnanunni; Josephkunju Paul C; Mathu Potti; Ernest Markose Mathew

374

E-Print Network 3.0 - ab initio potential-energy Sample Search...  

NLE Websites -- All DOE Office Websites (Extended Search)

College London Collection: Physics ; Geosciences 54 imageslogoetsf Introduction Electron Energy Loss Spectroscopy Applications: Nanotubes and Graphene Perspectives Summary:...

375

Calculation of transmission system losses for the Taiwan Power Company by the artificial neural network with time decayed weight  

SciTech Connect

For energy conservation and improvement of power system operation efficiency, how to reduce the transmission system losses becomes an important topic of grave concern. To understand the cause, and to evaluate the amount, of the losses are the prior steps to diminish them. To simplify the evaluation procedure without losing too much accuracy, this paper adopts the artificial neural network, which is a model free network, to analyze the transmission system losses. As the artificial neural network with time decayed weight has the capability of learning, memorizing, and forgetting, it is more suitable for a power system with gradually changing characteristics. By using this artificial neural network, the estimation of transmission system losses will be more precise. In this paper, comparison will be made between the results of artificial neural network analysis and polynomial loss equations analysis.

Chu, W.C.; Chen, B.K.; Mo, P.C. [Tatung Inst. of Tech., Taipei (Taiwan, Province of China)

1995-12-31T23:59:59.000Z

376

High temperature elemental losses and mineralogical  

E-Print Network (OSTI)

future energy crops. Combustion in biomass fueled boilers,in ash during combustion of biomass fuels is important forC. Combustion characteristics of high alkali biomass. Final

Thy, P.; Jenkins, B. M.; Grundvig, S.; Shiraki, R.; Lesher, C. E.

2006-01-01T23:59:59.000Z

377

System Losses and Assessment Trade Study  

SciTech Connect

This Advanced Fuel Cycle Initiative (AFCI) study has developed new analysis methods to examine old and new technology options toward the goal of improving fuel cycle systems. We have integrated participants and information from AFCI Systems Analysis, Transmutation Fuels, Separations, and Waste Form Campaigns in the Systems Losses and Assessment Trade Study. The initial objectives of this study were to 1) increase understanding of system interdependencies and thereby identify system trade-offs that may yield important insights, 2) define impacts of separations product purity on fuel manufacture and transmutation reactivity, 3) define impacts from transuranic (TRU) losses to waste, 4) identify the interrelationships involved in fuels and separations technology performance, and 5) identify system configuration adjustments with the greatest potential for influencing system losses. While bounding and analyzing this initial problem, we also identified significantly higher-level programmatic drivers with broad implications to the current fuel cycle research charter and the general issue of a DOE complex wide need for a comprehensive and integrated nuclear material management as addressed by the new DOE Order 410.2 titled “Management of Nuclear Materials”. The initial modeling effort developed in this study for a much smaller subset of material (i.e., commercial fuel) and a selected transmutation scheme (i.e., fast reactor recycling) is a necessary first step towards examining a broader set of nuclear material management options, dispositioning strategies and integrated waste management options including potential areas of research leverage. The primary outcome from this initial study has been an enhanced integration among Campaigns and associated insights and analysis methods. Opportunities for improved understanding between the groups abound. The above lanthanide-actinide example highlights the importance of evaluating options via integration across the Campaigns. Plans for Fiscal Year 2010 are being made in a coordinated fashion such that the knowledge gained from the research performed by the Campaigns can benefit on-going work of the study, and that improved understanding of the system relationships can be used to guide the specific research and development (R&D) activities within the Campaigns. In FY-10, the System Losses and Assessment Trade Study will carry-over activities from FY-09. We will continue to refine impurity and loss estimates and impurity limits on fuels by incorporating results from ongoing R&D. And we will begin work on an enhanced nuclear material management model to allow us to continue to improve our overall system understanding of the trade-offs between separations, fuel fabrication, waste forms, waste disposition, SNM losses, reactor performance, and proliferation resistance. In the future, we can also better understand how used fuel and other forms of remote-handled SNM can be better integrated into an overall nuclear material management program that will evolve for the DOE complex via Order 410.2 (DOE 2009).

David Shropshire; Steve Piet; Nick Soelberg; Robert Cherry; Roger Henry; David Meikrantz; Greg Teske; Eric Shaber; Candido Pereira

2009-09-01T23:59:59.000Z

378

Weight Loss, Exercise, or Both and Physical Function in Obese Older Adults  

Science Journals Connector (OSTI)

...were measured with the use of dual-energy x-ray absorptiometry (Delphi 4500/w, Hologic), as described previously. Thigh muscle and fat volumes were measured with the use of magnetic resonance imaging (MRI) (Siemens), as described previously. Health-Related Quality of Life. The Medical Outcomes 36-Item... This trial examined the independent and combined effects of weight loss and exercise in obese adults 65 years of age or older. The findings suggest that weight loss plus exercise provides greater improvement in physical function than either intervention alone.

Villareal D.T.; Chode S.; Parimi N.

2011-03-31T23:59:59.000Z

379

Spring-Supported thrust bearings for hydroelectric generators: Influence of oil viscosity on power loss  

Science Journals Connector (OSTI)

Energy losses in the spring-supported thrust bearings used in many large hydroelectric generator units were estimated to be small compared to the rate of energy (power) generation but, nevertheless, commercially significant. The purpose of the present study was examine the influence of oil viscosity on power loss. Experiments were performed using a test facility containing a thrust bearing of 1.2 m outer diameter and both power loss and temperature rise were measured for oils of ISO grade 32, 46 and 68, all at various oil pot temperatures. Power loss and temperature rise decreased as the viscosity of the oil in the oil pot decreased. Minimum oil film thicknesses were predicted with numerical analysis using a specialized software package (GENMAT). The accuracy of this calculation was supported by the good agreement between the temperature rise predicted by numerical analysis and the experimentally determined values. Provided film thickness were adequate to avoid any danger of wiping (10 – 15 ?m), the present study showed clearly that significant energy savings could be realized in the large spring-supported thrust bearings and associated guide bearings by lowering oil viscosities.

J.H. Ferguson; J.H. Yuan; J.B. Medley

1998-01-01T23:59:59.000Z

380

Energy-Optimizing Source Code Transformations for OS-driven Embedded Software  

E-Print Network (OSTI)

techniques achieve up to 37.9% (23.8% on an average) energy reduction compared to highly compiler- optimized hardware components for energy reduction, but also energy- efficient software design and compilation [1,anand¤ @nec-lab.com Abstract The increasing software content of battery-powered embedded sys- tems has fueled

Fei, Yunsi

Note: This page contains sample records for the topic "tem energy losses" 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

In Situ TEM Investigation of Congruent Phase Transition and Structural Evolution of Nanostructured Silicon/Carbon Anode for Lithium Ion Batteries  

SciTech Connect

It is well known that upon lithiation both crystalline and amorphous Si transform to a armorphous LixSi phase, which subsequently crystallizes to a (Li, Si) crystalline compound, either Li15Si or Li22Si5. Up to date, the detailed atomistic mechanism of this phase transformation, and degradation process in nanostructured Si, are not fully understood. Here, we report the microstructural evolution and phase transformation characteristic of a specially designed amorphous silicon (a-Si) coated carbon nanofiber (CNF) composite during charge/discharge process using in-situ TEM and density function theory molecular dynamic (DFT-MD) calculation. We found that the crystallization of Li15Si4 from amorphous LixSi is a spontaneous, congruent phase transition process without phase separation or large scale atomic motion, which is drastically different from what is expected from a classic nucleation and growth process. The a-Si layer is strongly bonded to the CNF and no spallation or cracking is observed during the early stages of cyclic charge/discharge. Reversible volume expansion/contraction upon charge/discharge is fully accommodated along the radial direction. However, with progressive cycling, damage in the form of surface roughness was gradually accumulated on the coating layer, which is believed to be the mechanism for the eventual capacity fade of the composite anode during long term charge/discharge cycling.

Wang, Chong M.; Li, Xiaolin; Wang, Zhiguo; Xu, Wu; Liu, Jun; Gao, Fei; Kovarik, Libor; Zhang, Jiguang; Howe, Jane; Burton, David J.; Liu, Zhongyi; Xiao, Xingcheng; Thevuthasan, Suntharampillai; Baer, Donald R.

2012-03-02T23:59:59.000Z

382

#AskEnergySaver: Saving Energy During Summer | Department of...  

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

set point decreases the amount of energy your house uses because it decreases the rate of heat loss or gain. That means the closer your setback temperature is to the outdoor...

383

#AskEnergySaver: Home Heating | Department of Energy  

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

on how ventilation and air leakage impact a home's energy use. 1. How can I recover my loss heat from my furnace exhaust? -- from @DezGardner007 on Twitter IW: The simplest way...

384

Optimal Placement of Wind Power Plants for Delivery Loss Minimization  

Science Journals Connector (OSTI)

In this chapter we investigate how to minimize power delivery losses in the distribution system on ... We show that strategically placing and utilizing new wind power plants can lead to significant loss reduction...

Masoud Honarvar Nazari

2013-01-01T23:59:59.000Z

385

Article Published on LED Lumen Maintenance and Light Loss Factors...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Article Published on LED Lumen Maintenance and Light Loss Factors Article Published on LED Lumen Maintenance and Light Loss Factors January 20, 2014 - 12:00am Addthis An article...

386

Draft 'Michigan Saves' Loan Loss Reserve Fund Agreement  

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

A sample loan loss reserve agreement between a state or local government and a financial institution setting the terms and conditions of the loan loss reserve fund. Author: State of Michigan

387

Toward Cost-Effective Solar Energy Use  

Science Journals Connector (OSTI)

...dwarfs all other renewable and fossil-based energy...reflection losses, grid shading losses, and other...Materials with “mini-bands” or...hooked up to the grid, and they would have...global transmission grid, supercapacitors...Production (National Renewable Energy Laboratory...

Nathan S. Lewis

2007-02-09T23:59:59.000Z

388

About: Why Energy Efficiency Upgrades  

NLE Websites -- All DOE Office Websites (Extended Search)

Why Energy Efficiency Upgrades Why Energy Efficiency Upgrades Two photos side by side showing energy loss through the use of infrared technology. As part of a home energy evaluation, an energy professional can use an infrared camera to pinpoint where air leaks and drafts are occurring in your home or building. Although normally difficult to see, these infrared photos clearly show in color where energy losses are occurring in a typical house. How We Use Energy in Our Buildings How We Use Energy in Our Homes (% of Energy Consumption) A pie chart illustrating the following breakdown: Space heating 43%, space cooling 9.7%, water heating 17.1%, lighting 6.2%, refrigeration 3.9%, electronics 3%, wet cleaning 3.2%, cooking 3.1%, computers 1.6%. Source: 2010 Buildings Energy Data Book, Table 2.1.6

389

Stochastic Orbit Loss of Neutral Beam Ions From NSTX Due to Toroidal Alfven Eigenmode Avalanches  

SciTech Connect

Short toroidal Alfven eigenmode (TAE) avalanche bursts in the National Spherical Torus Experiment (NSTX) cause a drop in the neutron rate and sometimes a loss of neutral beam ions at or near the full injection energy over an extended range of pitch angles. The simultaneous loss of wide ranges of pitch angle suggests stochastic transport of the beam ions occurs. When beam ion orbits are followed with a guiding center code that incorporates plasma's magnetic equilibrium plus the measured modes, the predicted ranges of lost pitch angle are similar to those seen in the experiment, with distinct populations of trapped and passing orbits lost. These correspond to domains where the stochasticity extends in the orbit phase space from the region of beam ion deposition to the loss boundary.

Darrow, D S; Fredrickson, E D; Gorelenkov, N N; Gorelenkova, M; Kubota, S; Medley, S S; Podesta, M; Shi, L

2012-07-11T23:59:59.000Z

390

Mass loss of copper alloy electrode during TiB2 coating by electrospark deposition  

Science Journals Connector (OSTI)

Titanium diboride was deposited on the surface of spot-welding electrodes for zinc coated steel sheets due to its high electrical and thermal conductivity and potential to prolong the lifespan of the electrodes, and mass of the electrodes was measured after every 30 s during depositing. The results showed that the as-deposited electrodes are losing their mass during the process, which is completely different from the deposition of TiC. Evaporation of copper and oxidation of TiB2 at high temperature generated by electrosparking play the most important roles in the mass loss. Cutting and flaking of the brittle coating also contribute to the mass loss. The cracks within the coating are channels for the leakage of the evaporated substrate material. The mass of the electrodes decreases as the pulse energy increases with the voltage increasing. Pre-coated nickel contributes to the mass loss of the electrodes too.

Cheng Luo; Shijie Dong; Xiang Xiong; Norman Zhou

2009-01-01T23:59:59.000Z

391

Loss PreventionIBM Retail Store Solutions Executive Brief  

E-Print Network (OSTI)

Loss PreventionIBM Retail Store Solutions Executive Brief Getting smarter about retail loss prevention. Wayne Truhan, business development executive, IBM Retail Store Solutions #12;2 Getting smarter about retail loss prevention. "With the downturn in the economy, we have seen an increase in theft

392

Cotton Insect Losses 1983 Compiled for National Cotton Council  

E-Print Network (OSTI)

Cotton Insect Losses 1983 Compiled for National Cotton Council Robert B. Head, Coordinator consultants and other personnel associated with cotton production. The Cotton Foundation provided funds their respective areas. Table 1 Alabama Cotton Insect Losses for 1983 Loss attributable to: Percent Bales Boll

Ray, David

393

Cotton Insect Losses 1991 Compiled for National Cotton Council  

E-Print Network (OSTI)

Cotton Insect Losses 1991 Compiled for National Cotton Council Robert B. Head, Chairman Cooperative to have produced the greatest pest related losses in U. S. cotton in 1991. Aphid losses reported at 2. This is true for sweet potato whiteflies. These insects have been pests of cotton in California and Arizona

Ray, David

394

Transverse Energy Production at RHIC  

E-Print Network (OSTI)

We study the mechanism of transverse energy (E_T) production in Au+Au collisions at RHIC. The time evolution starting from the initial energy loss to the final E_T production is closely examined in transport models. The relationship between the experimentally measured E_T distribution and the maximum energy density achieved is discussed.

Qun Li; Yang Pang; Nu Xu

1999-06-18T23:59:59.000Z

395

AN ARTIFICIAL NEURAL NETWORK BASED TRANSMISSION LOSS ALLOCATION FOR BILATERAL CONTRACTS  

E-Print Network (OSTI)

AN ARTIFICIAL NEURAL NETWORK BASED TRANSMISSION LOSS ALLOCATION FOR BILATERAL CONTRACTS Rezaul to allocate transmission loss to respective transactions. An artificial neural network based transmission loss technique. Keywords: Neural network; transmission loss; loss allocation; bilateral contracts. 1

Saskatchewan, University of

396

LHC Beam Loss Detector Design Simulations and Measurements  

E-Print Network (OSTI)

The Beam Loss Monitoring (BLM) system is integrated in the active equipment protection system of the LHC. It determines the number of particles lost from the primary hadron beam by measuring the radiation field of the shower particles outside of the vacuum chamber. The LHC BLM system will use ionization chambers as its standard detectors but in the areas where very high dose rates are expected, the Secondary Emission Monitor (SEM) chambers will be additionally employed because of their high linearity, low sensitivity and fast response.The sensitivity of the SEM was modeled in Geant4 via the Photo-Absorption Ionization module together with custom parameterization of the very low energy secondary electron production. The prototypes were calibrated by proton beams. For the calibration of the BLM system the signal response of the ionization chamber is simulated in Geant4 for all relevant particle types and energies (keV to TeV range). The results are validated by comparing the simulations to measurements using pr...

Dehning, B; Emery, J; Ferioli, G; Holzer, E B; Kramer, Daniel; Ponce, L; Stockner, M; Zamantzas, C

2007-01-01T23:59:59.000Z

397

E-Print Network 3.0 - annual cycle energy system Sample Search...  

NLE Websites -- All DOE Office Websites (Extended Search)

Summary: Summary A new type of microelectromechanical system (MEMS ) high efficiency heat energy converter... the energy generation cycle with minimal power loss, leading to...

398

Effect of plasmonic losses on light emission enhancement in quantum-wells coupled to metallic gratings  

SciTech Connect

Recent experimental work has shown significant luminescence enhancement from near-surface quantum-well (QW) structures using metallic grating to convert surface plasmon (SP) modes into radiative modes. This work introduces a detailed theoretical study of plasmonic losses and the role of SPs in improving light extraction from grated light-emitting QW structures, using the fluctuational electrodynamics method. The method explains experimental results demonstrating emission enhancement, light scattering, and plasmonic coupling in the structures. We study these effects in angle-resolved reflectometry and luminescence setups in InGaN QW structures with silver grating. In contrast to experiments, our model allows direct calculation of the optical losses. The model predicts that the plasmonic coupling and scattering increases light emission by a factor of up to three compared to a flat semiconductor structure. This corresponds to reducing the absorption losses from approximately 93% in the ungrated metallic structure to 75% in the grated structure. Lower losses are associated with a significant emission enhancement enabled by the SPs of silver/GaN interfaces, which are present in the blue/green wavelength range, and can be optimized by carefully nanostructuring the metal layer and by the positioning of the QW. In general, the enhancement results from the interplay of mode scattering, conversion of SP energy directly into light, and losses in the metallic grating. The reported losses are very high when compared to the losses present in modern light-emitting diodes (LEDs). Albeit, our work provides tools needed for further optimization of plasmonic light extraction, eventually leading to highly efficient LEDs.

Sadi, Toufik; Oksanen, Jani; Tulkki, Jukka [Department of Biomedical Engineering and Computational Sciences, Aalto University, P.O. Box 12200, FI-00076 Aalto (Finland)

2013-12-14T23:59:59.000Z

399

Preventing Strength Loss of Unbleached Kraft Pulp  

SciTech Connect

Kraft pulp fibers lose inter-fiber bonding ability when they are dried during the manufacture of paper. Adverse environmental consequences of this loss include (a) limitations on the number of times that kraft fibers can be recycled, (b) reduced paper strength, sometimes making it necessary to use heavier paper or paperboard to meet product strength requirements, increasing the usage of raw materials, (c) decreased rates of paper production in cases where the fiber furnish has been over-refined in an attempt to regain inter-fiber bonding ability. The present study is the first of its type to focus on unbleached kraft fibers, which are a main ingredient of linerboard for corrugated containers. About 90 million tons of unbleached kraft fiber are used worldwide every year for this purpose.

Martin Hubbe; Richard Venditti; John Heitmann

2003-04-16T23:59:59.000Z

400

Quantum cryptographic system with reduced data loss  

DOE Patents (OSTI)

A secure method for distributing a random cryptographic key with reduced data loss. Traditional quantum key distribution systems employ similar probabilities for the different communication modes and thus reject at least half of the transmitted data. The invention substantially reduces the amount of discarded data (those that are encoded and decoded in different communication modes e.g. using different operators) in quantum key distribution without compromising security by using significantly different probabilities for the different communication modes. Data is separated into various sets according to the actual operators used in the encoding and decoding process and the error rate for each set is determined individually. The invention increases the key distribution rate of the BB84 key distribution scheme proposed by Bennett and Brassard in 1984. Using the invention, the key distribution rate increases with the number of quantum signals transmitted and can be doubled asymptotically.

Lo, Hoi-Kwong (1309, Low Block, Lei Moon House Ap Lei Chau Estate, Hong Kong, HK); Chau, Hoi Fung (Flat C, 42nd Floor, Tower 1, University Heights 23 Pokfield Road, Pokfulam, Hong Kong, HK)

1998-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "tem energy losses" 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

Inhomogeneous mechanical losses in micro-oscillators with high reflectivity coating  

E-Print Network (OSTI)

We characterize the mechanical quality factor of micro-oscillators covered by a highly reflective coating. We test an approach to the reduction of mechanical losses, that consists in limiting the size of the coated area to reduce the strain and the consequent energy loss in this highly dissipative component. Moreover, a mechanical isolation stage is incorporated in the device. The results are discussed on the basis of an analysis of homogeneous and non-homogeneous losses in the device and validated by a set of Finite-Element models. The contributions of thermoelastic dissipation and coating losses are separated and the measured quality factors are found in agreement with the calculated values, while the absence of unmodeled losses confirms that the isolation element integrated in the device efficiently uncouples the dynamics of the mirror from the support system. Also the resonant frequencies evaluated by Finite-Element models are in good agreement with the experimental data, and allow the estimation of the Y...

Serra, E; Marin, F; Marino, F; Pontin, A; Prodi, G A; Bonaldi, M

2012-01-01T23:59:59.000Z

402

Energy News | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

8, 2010 8, 2010 Department of Energy Cites Parsons Infrastructure & Technology Group, Inc. for Worker Safety and Health Violations WASHINGTON, D.C. - The Department of Energy has issued a Preliminary Notice of Violation (PNOV) to Parsons Infrastructure & Technology Group, Inc. for violations of DOE's worker safety and health regulations with a proposed civil penalty of $70,000. The violations are associated with an October 6, 2009, hand injury event that occurred while a Parsons worker was performing crane lubrication on a moving cable at the Salt Waste Processing Facility at DOE's Savannah River Site, resulting in the loss of three fingers. October 8, 2010 Department of Energy Cites Savannah River Nuclear Solutions for Worker Safety and Health Violations

403

Dependence of cross sections for multi-electron loss by 6 mev/amu xe18+ ions on target atomic number  

E-Print Network (OSTI)

ions in the present energy and charge regime. A semiempirical calculation based the IEA shows that the average most probable impact parameter for electron loss is much smaller than the target molecular bond length. This result is believed to account...

Peng, Yong

2004-09-30T23:59:59.000Z

404

Understanding the Impact of Return-current Losses on the X-Ray Emission from Solar Flares  

Science Journals Connector (OSTI)

I obtain and examine the implications of one-dimensional analytic solutions for return-current losses on an initially power-law distribution of energetic electrons with a sharp low-energy cutoff in flare plasma with classical (collisional) resistivity. These solutions show, for example, that return-current losses are not sensitive to plasma density, but are sensitive to plasma temperature and the low-energy cutoff of the injected nonthermal electron distribution. A characteristic distance from the electron injection site, x rc, is derived. At distances less than x rc the electron flux density is not reduced by return-current losses, but plasma heating can be substantial in this region, in the upper, coronal part of the flare loop. Before the electrons reach the collisional thick-target region of the flare loop, an injected power-law electron distribution with a low-energy cutoff maintains that structure, but with a flat energy distribution below the cutoff energy, which is now determined by the total potential drop experienced by the electrons. Modifications due to the presence of collisional losses are discussed. I compare these results with earlier analytical results and with more recent numerical simulations. Emslie's conjecture that there is a maximum integrated X-ray source brightness on the order of 10–15 photons cm–2 s–1 cm–2 is examined. I find that this is not actually the maximum brightness and its value is parameter dependent, but it is nevertheless a valuable benchmark for identifying return-current losses in hard X-ray spectra. I discuss an observational approach to identifying return-current losses in flare data, including identification of a return-current "bump" in X-ray light curves at low photon energies.

Gordon D. Holman

2012-01-01T23:59:59.000Z

405

UNDERSTANDING THE IMPACT OF RETURN-CURRENT LOSSES ON THE X-RAY EMISSION FROM SOLAR FLARES  

SciTech Connect

I obtain and examine the implications of one-dimensional analytic solutions for return-current losses on an initially power-law distribution of energetic electrons with a sharp low-energy cutoff in flare plasma with classical (collisional) resistivity. These solutions show, for example, that return-current losses are not sensitive to plasma density, but are sensitive to plasma temperature and the low-energy cutoff of the injected nonthermal electron distribution. A characteristic distance from the electron injection site, x{sub rc}, is derived. At distances less than x{sub rc} the electron flux density is not reduced by return-current losses, but plasma heating can be substantial in this region, in the upper, coronal part of the flare loop. Before the electrons reach the collisional thick-target region of the flare loop, an injected power-law electron distribution with a low-energy cutoff maintains that structure, but with a flat energy distribution below the cutoff energy, which is now determined by the total potential drop experienced by the electrons. Modifications due to the presence of collisional losses are discussed. I compare these results with earlier analytical results and with more recent numerical simulations. Emslie's conjecture that there is a maximum integrated X-ray source brightness on the order of 10{sup -15} photons cm{sup -2} s{sup -1} cm{sup -2} is examined. I find that this is not actually the maximum brightness and its value is parameter dependent, but it is nevertheless a valuable benchmark for identifying return-current losses in hard X-ray spectra. I discuss an observational approach to identifying return-current losses in flare data, including identification of a return-current 'bump' in X-ray light curves at low photon energies.

Holman, Gordon D., E-mail: Gordon.D.Holman@nasa.gov [NASA Goddard Space Flight Center, Code 671, Greenbelt, MD 20771 (United States)

2012-01-20T23:59:59.000Z

406

Co-current rotation of the bulk ions due to the ion orbit loss at the edge of a tokamak plasma  

E-Print Network (OSTI)

Flux-surface-averaged momentum loss and parallel rotation of the bulk ions at the edge of a tokamak plasma due to the ion orbit loss are calculated by computing the minimum loss energy of both the trapped and the passing thermal ions. The flux-surface-averaged parallel rotation of the bulk ions is in the co-current direction. The peak of the co-current rotation speed locates inside the last closed flux surface due to the orbit loss of the co-current thermal ions at the very edge of a tokamak plasma. The peaking position moves inward when the ion temperature increases.

Pan, Chengkang; Ou, Jing

2014-01-01T23:59:59.000Z

407

22 IEEE power & energy magazine march/april 2011 THE SECURITY OF ENERGY SUP-  

E-Print Network (OSTI)

to their energy supply infrastructure and at times to their economic devel- opment, in addition to the loss22 IEEE power & energy magazine march/april 2011 T THE SECURITY OF ENERGY SUP- ply has become on a continuous energy supply, but our complete style of living collapses when energy fails. Surges in fuel prices

Catholic University of Chile (Universidad Católica de Chile)

408

Submitted 08-13-09: Energy Policy Putting Renewables and Energy Efficiency To Work  

E-Print Network (OSTI)

of normalizing job data to average employment per unit energy produced over plant lifetime. Job losses (renewable energy, EE, low carbon) create more jobs per unit energy than coal and natural gas. Aggressive EE. By investing in energy efficiency measures, money otherwise spent on energy costs can be redirected

Kammen, Daniel M.

409

U.S. Manufacturing Energy Use and Greenhouse Gas Emissions Analysis...  

Energy Savers (EERE)

2012 The report ranks the energy use, energy losses, and energy-related greenhouse gas (GHG) emissions of 15 sectors. These sectors collectively account for 94% of all energy use...

410

Chapter 18 - Correlation of the Same Fields Imaged in the TEM, Confocal, LM, and MicroCT by Image Registration: From Specimen Preparation to Displaying a Final Composite Image  

Science Journals Connector (OSTI)

Abstract Correlated imaging is the process of imaging a specimen with two complementary modalities and then registering and overlaying the fields obtained in each modality to create a composite view. One of the images is made somewhat transparent, allowing detail in the underlying image to be visible and assisting in the registration of the two images. As an example, an image localizing a specific tissue component by fluorescence may be overlaid atop a TEM image of the same field. The resulting composite image would demonstrate specific ultrastructural features in the high-resolution TEM field, which are colorized in the overlay. Other examples include composites from MicroCT or soft X-ray images overlaid atop light microscopy or TEM images. Automated image registration may be facilitated by a variety of sophisticated computer programs utilized by high-throughput laboratories. This chapter is meant for the more occasional user wishing to align images manually. ImageJ is a public domain, image processing program developed at the National Institutes of Health and is available to anyone as a free download. ImageJ performs marvelously well for the purpose of image registration; therefore, step-by-step instructions are included here. Specimen handling, including fixation and choice of embedding media, is not straightforward for correlative imaging. A step-by-step description of the protocols which work in our laboratory is included for simultaneous localization in LM, EM and micro-CT, as well as maintaining GFP emission in tissue embedded for TEM.

Douglas R. Keene; Sara F. Tufa; Melissa H. Wong; Nicholas R. Smith; Lynn Y. Sakai; William A. Horton

2014-01-01T23:59:59.000Z

411

Consider a thin coaxial cable of length L . We consider only TEM modes inside the cable, so that the photons may be considered as particles moving in one dimension, with  

E-Print Network (OSTI)

Consider a thin coaxial cable of length L . We consider only TEM modes inside the cable, so/sc = � is the speed of light inside the cable. The temperature of the cable is T and the photons are in thermal equilibrium. The ends of the cable are terminated by plugs with zero resistance, such that the electric field

Ha, Taekjip

412

Home Energy Audits | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

19, 2011 19, 2011 How I Learned to Stop Worrying and Love Professional Energy Assessments It's worth a small investment of time and money now to assure yourself that your home is operating the way it should be. April 11, 2011 Energy Careers: Energy Assessor or Auditor A home energy assessment is a series of tests that reveal energy leaks in a home such as air leaks, poor insulation, and hot water loss. March 31, 2011 How Do You Find Thermal Leaks in Your Home? How do you find thermal leaks in your home? March 9, 2011 Florida County Helping Homeowners Save Energy and Money Sarasota County is letting its citizens choose how best to take advantage of all the energy efficient measures they have to offer. February 7, 2011 Modern Smart Grid Offers Consumers the Power of Choice

413

Energy Management of Steam Distribution Systems Through Energy Audits and Computerized Reporting Programs  

E-Print Network (OSTI)

ENERGY KANAGEKBNT OF STEAM DISTRIBUTION SYSTEMS THROUGH BNKRGY AUDITS AND COItPlTl'ERIZED REPORTING PROGRAtIS NORMAN J. RIVERS and HARTIN MANDZUK Armstrong Machine Works, Inc. Three Rivers, Michigan ABSTRACT This presentation will highlight... the economic losses associated with steam distribution systems and how to establish good energy management programs to reduce energy cost by 15 to 25 percent. Recognizing energy losses in steam systems involves I 1. Steam lost through defective valves...

Rivers, N.; Mandzuk, N.

414

An investigation of simplified loss formula evaluation of total and incremental power system losses  

E-Print Network (OSTI)

Program ~ a o o ~ o a o o o o e a o o 11 Incremental Transmission Loss Calculation . . . . . . o 13 The Transmission System ~ a ~ o o ~ ~ o o o o o o 14 IVa RESULTS e ~ o a ~ ~ a a ~ e a o a ~ e ~ o a o o o IQ V SUMMARY a o o o a ~ o ~ a o 0 o o o ~ 0..., 1 X II tf g tf ff tf lt 4 0o9 50/ System Load ? Per Cent of Peak 1o06 f 1. 05 0 Xo1. 04 0 e 5 1, 03 1. 02 Ir 5 F. 1o01 4 tI 1o0 III II 0. 99 5 FIGURE IVa Simplified Loss Formula Evaluation of Pen- alty Faotor ? Bus 1 All...

Malinowski, James Henry

1962-01-01T23:59:59.000Z

415

Process Refinements - Accounting for Motor-Fuel Losses  

NLE Websites -- All DOE Office Websites (Extended Search)

Accounting for Motor-Fuel Losses Accounting for Motor-Fuel Losses Motor fuel may be lost by leakage from storage tanks, spillage, fire, or other means; in addition, measurement differences brought about by temperature or other conditions and meter faults can result in apparent losses. Because this lost fuel is neither consumed on the highway nor used for off-highway purposes, it presents a problem for determining the appropriate base for taxation. In the past, FHWA allowed States to report actual losses or a percentage loss, which was capped at 1%. Usage data for States that did not report losses were not adjusted by FHWA to account for losses. In addition, diesel losses were not considered significant and were not counted. During the reassessment meetings and in the Federal Register notice of August 17, 2000, it was recommended that actual diesel losses also be documented and reported. However, because diesel reporting accounts for actual on-highway fuel use, a reporting of diesel losses is unnecessary.

416

Food Losses and Waste in China and Their Implication for Water and Land  

Science Journals Connector (OSTI)

Such losses also imply that 26 ± 11 million hectares of land were used in vain, equivalent to the total arable land of Mexico. ... The fact remains that all food produced, regardless if it is eaten, lost, wasted, and converted, has consumed water, energy, occupied land, and contributed to greenhouse gas (GHG) emissions. ... Following rapid economic development new policies and reforms to open China to the global market, living standards have improved in recent years. ...

Junguo Liu; Jan Lundqvist; Josh Weinberg; Josephine Gustafsson

2013-08-13T23:59:59.000Z

417

Detonation propagation in a high loss configuration  

SciTech Connect

This work presents an experimental study of detonation wave propagation in tubes with inner diameters (ID) comparable to the mixture cell size. Propane-oxygen mixtures were used in two test section tubes with inner diameters of 1.27 mm and 6.35 mm. For both test sections, the initial pressure of stoichiometric mixtures was varied to determine the effect on detonation propagation. For the 6.35 mm tube, the equivalence ratio {phi} (where the mixture was {phi} C{sub 3}H{sub 8} + 50{sub 2}) was also varied. Detonations were found to propagate in mixtures with cell sizes as large as five times the diameter of the tube. However, under these conditions, significant losses were observed, resulting in wave propagation velocities as slow as 40% of the CJ velocity U{sub CJ}. A review of relevant literature is presented, followed by experimental details and data. Observed velocity deficits are predicted using models that account for boundary layer growth inside detonation waves.

Jackson, Scott I [Los Alamos National Laboratory; Shepherd, Joseph E [CALTECH

2009-01-01T23:59:59.000Z

418

The Ecological Society of America wwwwww..ffrroonnttiieerrssiinneeccoollooggyy..oorrgg The energy demands of modern societies are steadily  

E-Print Network (OSTI)

-energy Pyrolysis is one of many technologies to produce energy from biomass (Bridgwater 2003). What distinguishes pyrolysis from alternative ways of converting biomass to energy is that pyrolysis produces a carbon-temperature pyrolysis"), using a variety of different reactor configurations. At these tem- peratures, biomass undergoes

Lehmann, Johannes

419

Energy Efficiency Loan Program Agreement-Template | Department...  

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

Agreement-Template Energy Efficiency Loan Program Agreement-Template A template agreement demonstrating how to address the deposit and use of the loan loss reserve monies. Author:...

420

KAir Battery Wins Southwest Regional Clean Energy Business Plan...  

Office of Environmental Management (EM)

to Final Round Unified Solar's integrated circuit solution helps reduce energy loss for solar panels. The student team from Massachusetts Institute of Technology won the MIT...

Note: This page contains sample records for the topic "tem energy losses" 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

National Clean Energy Business Plan Competition: Unified Solar...  

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

11:01am Addthis Unified Solar's integrated circuit solution helps reduce energy loss for solar panels. The student team from Massachusetts Institute of Technology won the MIT...

422

On Minimizing the Energy Consumption of an Electrical Vehicle  

E-Print Network (OSTI)

The electrical vehicle energy management can be expressed as a Bang-Bang .... reflects the losses due to the internal resistance of the battery. The system ...

2011-04-19T23:59:59.000Z

423

Chapter 5: Basic Concepts for Clean Energy Unsecured Lending...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Funds revfinalv3ch05basicconceptsdec9.pdf More Documents & Publications Path to Self-Sustainability Chapter 5. Basic Concepts for Clean Energy Unsecured Lending and Loan Loss...

424

Geothermal Literature Review (Wisian, Et Al., 2001) | Open Energy...  

Open Energy Info (EERE)

Kenneth W. Wisian, David D. Blackwell, Maria Richards (2001) Correlation Of Surface Heat Loss And Total Energy Production For Geothermal Systems Additional References...

425

Energy audit of irrigation networks  

Science Journals Connector (OSTI)

The relationship between water and energy in water distribution systems (WDS) has been a growing concern among energy and water experts. Among the different strategies to improve water–energy efficiency in water distribution networks, energy audits are of paramount importance as they quantify water flow requirements, the amount of energy consumed to meet demand and leakage and friction losses. Previous work has presented the energy audit process for urban WDS and this energy audit is extended to irrigation networks here. This work analyses the most common types of irrigation emitters (sprinklers and pressure compensating and non-pressure compensating drippers), hydrant specifications, irrigation management systems (on-demand or rigid scheduled), and energy losses due to friction in pipes, control valves and irrigation hydrants. The energy audit does not assess whether management of the network is optimal, but analyses the energy consumption. Some of the performance indicators have already been defined for agricultural water networks, some are identical to those of urban WDS, but in addition, a new one is presented that disaggregates the energy dissipated into three terms, energy losses in pipelines, in hydraulic valves and in irrigation hydrants. These indicators show information necessary to better understand the performance of the irrigation network under study, to carry out a deep analysis of energy consumption and to allow for comparison with similar systems. The paper presents the analysis of a real case study conducted on the irrigation network of the garden of the Universidad Politécnica de Valencia.

Miguel A. Pardo; Juan Manzano; Enrique Cabrera; Jorge García-Serra

2013-01-01T23:59:59.000Z

426

Impacts of the Venezuelan Crude Oil Production Loss  

Gasoline and Diesel Fuel Update (EIA)

Impacts of the Venezuelan Crude Oil Production Loss Impacts of the Venezuelan Crude Oil Production Loss EIA Home > Petroleum > Petroleum Feature Articles Impacts of the Venezuelan Crude Oil Production Loss Printer-Friendly PDF Impacts of the Venezuelan Crude Oil Production Loss By Joanne Shore and John Hackworth1 Introduction The loss of almost 3 million barrels per day of crude oil production in Venezuela following a strike in December 2002 resulted in an increase in the world price of crude oil. However, in the short term, the volume loss probably affected the United States more than most other areas. This country receives more than half of Venezuela's crude and product exports, and replacing the lost volumes proved difficult. U.S. imports of Venezuelan crude oil dropped significantly in December 2002 relative to other years

427

The influence of thermodynamic losses on free-piston Stirling engine performance  

SciTech Connect

In order to improve the performance of a free-piston Stirling engine by means of a thermodynamic design optimization, it is important to quantify the entropy productions related to the different causes of irreversibility typical of these machines. This is done in the present paper, where the entropy generated in the various engine components is calculated applying the energy and entropy balance equations and assuming for the engine behavior description a mathematical model presented in past studies. The developed methodology is applied to the Sunpower RE-1000 engine for which it allows the most important causes of energy loss to be singled out.

Benvenuto, G. [Univ. of Genoa (Italy). Dipt. di Ingegneria Navale; Monte, F. de; Galli, G. [Univ. di L`Aquila (Italy). Dipt. di Energetica

1995-12-31T23:59:59.000Z

428

Energy Procurement Portfolios and Production EWO Spring Meeting '11  

E-Print Network (OSTI)

deterministic demand stockouts are not allowed the plant has an energy storage system (ESS) Contracts fixed inventory for end product ESS Parameters c, Cc ESS charging loss coefficient and capacity s, Cs ESS storage loss coefficient and capacity i, Ci ESS discharging loss coefficient and capacity 10 / 19 #12;Variables

Grossmann, Ignacio E.

429

Estimated Business Interruptions Losses of the Deepwater Horizon Oil Spill.  

E-Print Network (OSTI)

??A generalized framework of Economic Analysis of natural and man-made disasters is applied to the estimation of business interruption losses associated with an oil spill.… (more)

Vargas, Vanessa

2011-01-01T23:59:59.000Z

430

Optimisation of hysteretic losses in high-temperature superconducting wires.  

E-Print Network (OSTI)

??Hysteretic loss optimisations through numerical simulation and subsequent experimental confirmation in transport current and background field measurements: ferromagnetic shielding and topological geometry optimisation is used… (more)

Krüger, Philipp

2014-01-01T23:59:59.000Z

431

Draft Michigan SAVES Loan Loss Reserve Fund Agreement  

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

A sample LRF agreement between a grantee and an financial institution setting the terms and conditions of the loan loss reserve fund.

432

Evaluation of friction loss in flexible and galvanized duct  

E-Print Network (OSTI)

for Friction Loss in Straight Runs of Duct (a'Ipha=0. 10). 21 Ill Static Pressure Data Converted to Equivalent Lengths. 23 IV Duncan's Multiple Range Test of Variability for Equivalent Lengths of 90 Degree Elbows (al pha=0. IO). 26 V Student t Test... because of the higher Friction losses obtained in the first 1. 5 hours of testing. The Investigators concluded that when flex'ible duct was properly installed the Friction losses compared reasonably well with the friction losses in galvanized duct. i...

Zimmermann, Carlos Michael Alberto

2012-06-07T23:59:59.000Z

433

Impact of high energy ball milling on the nanostructure of magnetite–graphite and magnetite–graphite–molybdenum disulphide blends  

SciTech Connect

Different, partly complementary and partly redundant characterization methods were applied to study the transition of magnetite, graphite and MoS{sub 2} powders to mechanically alloyed nanostructures. The applied methods were: Transmission electron microscopy (TEM), Mössbauer spectroscopy (MS), Raman spectroscopy (RS), X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS). The main objective was to prepare a model material providing the essential features of a typical tribofilm forming during automotive braking, and to assess the impact of different constituents on sliding behaviour and friction level. Irrespective of the initial grain size, the raw materials were transferred to a nanocrystalline structure and mixed on a nanoscopic scale during high energy ball milling. Whereas magnetite remained almost unchanged, graphite and molybdenum disulphide were transformed to a nanocrystalline and highly disordered structure. The observed increase of the coefficient of friction was attributed to a loss of lubricity of the latter ingredient due to this transformation and subsequent oxidation. - Highlights: • Characterization of microstructural changes induced by high energy ball milling • Assessment of the potential of different characterization methods • Impact of mechanical alloying on tribological performance revealed by tests • Preparation of an artificial third body resembling the one formed during braking.

Österle, W., E-mail: Werner.oesterle@bam.de [BAM Federal Institute for Materials Research and Testing, 12200 Berlin (Germany); Orts-Gil, G.; Gross, T.; Deutsch, C. [BAM Federal Institute for Materials Research and Testing, 12200 Berlin (Germany); Hinrichs, R. [Instituto de Geociências, UFRGS, P.O. Box 15001, 91501-970 Porto Alegre (Brazil); Vasconcellos, M.A.Z. [Instituto de Física, UFRGS, P.O. Box 15051, 91501-970 Porto Alegre (Brazil); Zoz, H.; Yigit, D.; Sun, X. [Zoz Group, 57482 Wenden (Germany)

2013-12-15T23:59:59.000Z

434

Prototyping an Energy Harvesting Wireless Sensor Network Application Using HarvWSNet  

E-Print Network (OSTI)

's are battery-based sys- tems, the application lifetime is either inherently limited by the battery capacity or extra costs are incurred when batteries must be replaced or recharged. Battery replace- ment may even in energy harvesting technologies allow nodes to extend their lifetime by scavenging energy (solar, thermal

Boyer, Edmond

435

International Energy Statistics  

Gasoline and Diesel Fuel Update (EIA)

> Countries > International Energy Statistics > Countries > International Energy Statistics International Energy Statistics Petroleum Production| Annual Monthly/Quarterly Consumption | Annual Monthly/Quarterly Capacity | Bunker Fuels | Stocks | Annual Monthly/Quarterly Reserves | Imports | Annual Monthly/Quarterly Exports | CO2 Emissions | Heat Content Natural Gas All Flows | Production | Consumption | Reserves | Imports | Exports | Carbon Dioxide Emissions | Heat Content Coal All Flows | Production | Consumption | Reserves | Imports | Exports | Carbon Dioxide Emissions | Heat Content Electricity Generation | Consumption | Capacity | Imports | Net Imports | Exports | Distribution Losses | Heat Content Renewables Electricity Generation| Electricity Consumption | Biofuels Production | Biofuels Consumption | Heat Content Total Energy

436

Loan Loss Reserve Request for Proposals—Template  

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

Template to request for proposals for residential energy efficiency loan facilities. Author: Energy Finance Corp

437

IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY, VOL. 56, NO. 1, JANUARY 2007 81 A Loss-Minimization DTC Scheme  

E-Print Network (OSTI)

--This paper proposes a strategy to minimize the losses of an induction motor propelling an electric vehicle with the torque demand of the EV to achieve the efficiency-optimized drive performance. Moreover, among EV's motor electric propulsion features, the energy efficiency is a basic characteristic that is influenced by vehicle

438

Microfluidic exergy loss in a non-polarized thermomagnetic field  

E-Print Network (OSTI)

Microfluidic exergy loss in a non-polarized thermomagnetic field G.F. Naterer *, O.B. Adeyinka 28 June 2005 Abstract In this article, exergy losses of fluid motion in a microchannel are investigated. Thermal, friction and electromagnetic irreversibilities contribute to the total rate of exergy

Naterer, Greg F.

439

The efficiency of voluntary incentive policies for preventing biodiversity loss  

E-Print Network (OSTI)

Biodiversity Conservation Land use Spatial modeling A B S T R A C T Habitat loss is a primary cause of loss of biodiversity but conserving habitat for species presents challenges. Land parcels differ in their ability conservation objectives. This topic is important not just for biodiversity conservation but for any effort

Weiblen, George D

440

Experimental characterisations of thin film transmission line losses  

E-Print Network (OSTI)

Experimental characterisations of thin film transmission line losses D. Kim, H. Kim and Y. Eo New frequency-variant losses of planar thin film transmission lines are experimentally investigated in a broad frequency range. The fre- quency-variant transmission line parameters are accurately determined

Note: This page contains sample records for the topic "tem energy losses" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
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441

Impacts of Biodiversity Loss on Ocean Ecosystem Services  

E-Print Network (OSTI)

fisheries data to test how biodiversity loss affects marine ecosystem services across temporal and spatial the effects of changes in marine biodiversity on fundamental ecosystem services by combining available dataImpacts of Biodiversity Loss on Ocean Ecosystem Services Boris Worm,1 * Edward B. Barbier,2 Nicola

Stachowicz, Jay

442

Testing Results of Magnetostrictive Ultrasonic Sensor Cables for Signal Loss  

SciTech Connect

The purpose of this test was to determine the signal strength and resolution losses of a magnetostrictive ultrasonic system with an extended signal cable. The cable of interest carries electrical signals between the pulse generator/receiver and the magnetostrictive transducer. It was desired to determine the loss introduced by different lengths of the signal cable (6', 100', and 200').

JT Evans

2005-05-01T23:59:59.000Z

443

Impact of extensive residential solar water heating on power system losses  

Science Journals Connector (OSTI)

South Africa is in the grips of an electricity crisis. Currently, the bulk of power is produced at coal fired power stations which are located far from the large load centres. Solar energy is widely available in South Africa, and could be used to complement this coal based generation, and supply energy at the point of use. This paper aims to investigate the impact of residential solar water heating on power system transmission losses. Initially simulations were carried out in order to determine the impact of solar water heating on a household's electricity demand. These were done for households located in Cape Town, Johannesburg and Durban. A number of solar water heating installations in Cape Town were also monitored, in order to validate the simulation results. Lastly, a power system model was developed in order to investigate the possible impact of large-scale implementation of solar water heating, at varied penetration levels, on a transmission system. Using the model and the results obtained from the simulations, a utility impact analysis was carried out in order to determine the effect on transmission losses. It was concluded that large-scale implementation of solar water heating can be used as a means to alleviate loading and losses on power systems' transmission lines particularly during peak demand.

K.P. Ijumba; A.B. Sebitosi; P. Pillay; K. Folly

2009-01-01T23:59:59.000Z

444

Mechanical energy dissipation using carbon fiber polymer–matrix structural composites with filler incorporation  

Science Journals Connector (OSTI)

Continuous carbon fiber composites with enhanced mechanical energy dissipation (vibration damping ... /MWCNT), halloysite nanotube (HNT), or nanoclay as sole fillers in enhancing the loss ... a loss tangent-enhan...

Seungjin Han; D. D. L. Chung

2012-03-01T23:59:59.000Z

445

Page not found | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

81 - 9290 of 26,764 results. 81 - 9290 of 26,764 results. Download CX-006458: Categorical Exclusion Determination Installation of Retail Biofuel Infrastructure Supporting I-75 Green Corridor Project CX(s) Applied: A1, B5.1 Date: 08/08/2011 Location(s): Detroit, Michigan Office(s): Energy Efficiency and Renewable Energy, National Energy Technology Laboratory http://energy.gov/nepa/downloads/cx-006458-categorical-exclusion-determination Download CX-006459: Categorical Exclusion Determination Analytical Physics - Transmission Electron Microscopy (TEM) CX(s) Applied: B3.6 Date: 08/08/2011 Location(s): Albany, Oregon Office(s): Fossil Energy, National Energy Technology Laboratory http://energy.gov/nepa/downloads/cx-006459-categorical-exclusion-determination Download CX-006460: Categorical Exclusion Determination

446

Movable insulation. A guide to reducing heating and cooling losses through the windows in your home  

SciTech Connect

A typical house loses 25 to 30% of its heat through windows, and a house with large windows may lose as much as 50%. Numerous movable-insulation systems that will cut the heat loss through windows in half are described. Chapters are: The Energy-Responsive Dwelling, Past to Present; Window Heat Losses and Gains; Enhanced Glazing Systems; Choosing a Window-Insulation Design for Your Home; Pop-In Shutters; Thermal Curtains - Blankets that Fold; Thermal Shades - Blankets that Roll; Thermal Shutters and Folding Screens; Insulation Between Glazing and Interior Louvers; Exterior Hinged and Sliding Shutters; Sun-Shading Screens; Exterior Roll Shutters; Shutters for Skylights; Shutters for Clerestory Windows; Interior Greenhouse Insulation Systems; Exterior Insulation for Greenhouses; Movable Insulation to Assist Passive Space Heating; and Movable Insulation to Assist Solar Water Heaters. Appendices include the following: insulated shade and shutter construction; the economics of window insulation; movable insulation products, hardware, and components; further technical information; and design sources. (MCW)

Langdon, W.K.

1980-01-01T23:59:59.000Z

447

Energy and Society Section Handout Week 9  

E-Print Network (OSTI)

Power loss Loss of electrical power to heat in a resistor = 2 Key components of a power grid1 Energy and Society Section Handout ­ Week 9 Topics 1. Grid 2. Q&A on midterm 1. Grid Key Concepts 10 = 12 Total current = 10 = 100 b) The power is delivered to the distribution grid by a 240. k

Kammen, Daniel M.

448

Range-energy relation for ultra-relativistic muons  

Science Journals Connector (OSTI)

A range-energy relation for ultra-relativistic muons is calculated: 1) extending the calculation...4...GeV; 2) emploing the Murota-Ueda-Tanaka theory, for the pair production energy loss; 3) utilizing for the nuc...

C. Castagnoli; A. De Maeco; R. Scrimaglio

1964-01-01T23:59:59.000Z

449

Energy Down-Conversion and Thermalization in Metal Absorbers  

Science Journals Connector (OSTI)

There are the two significant factors associated with down-conversion phonons. The first is the dependence of the energy loss on the distance of the absorption ... from the escape interface. A photon of energy E....

A. Kozorezov

2012-05-01T23:59:59.000Z

450

Total Energy - Data - U.S. Energy Information Administration (EIA)  

Gasoline and Diesel Fuel Update (EIA)

Total Energy Flow, (Quadrillion Btu) Total Energy Flow, (Quadrillion Btu) Total Energy Flow diagram image Footnotes: 1 Includes lease condensate. 2 Natural gas plant liquids. 3 Conventional hydroelectric power, biomass, geothermal, solar/photovoltaic, and wind. 4 Crude oil and petroleum products. Includes imports into the Strategic Petroleum Reserve. 5 Natural gas, coal, coal coke, biofuels, and electricity. 6 Adjustments, losses, and unaccounted for. 7 Natural gas only; excludes supplemental gaseous fuels. 8 Petroleum products, including natural gas plant liquids, and crude oil burned as fuel. 9 Includes 0.01 quadrillion Btu of coal coke net exports. 10 Includes 0.13 quadrillion Btu of electricity net imports. 11 Total energy consumption, which is the sum of primary energy consumption, electricity retail sales, and electrical system energy losses.

451

Loss of Fine Particle Ammonium from Denuded Nylon Filters  

SciTech Connect

Ammonium is an important constituent of fine particulate mass in the atmosphere, but can be difficult to quantify due to possible sampling artifacts. Losses of semivolatile species such as NH4NO3 can be particularly problematic. In order to evaluate ammonium losses from aerosol particles collected on filters, a series of field experiments was conducted using denuded nylon and Teflon filters at Bondville, Illinois (February 2003), San Gorgonio, California (April 2003 and July 2004), Grand Canyon National Park, Arizona (May, 2003), Brigantine, New Jersey (November 2003), and Great Smoky Mountains National Park (NP), Tennessee (July–August 2004). Samples were collected over 24-hr periods. Losses from denuded nylon filters ranged from 10% (monthly average) in Bondville, Illinois to 28% in San Gorgonio, California in summer. Losses on individual sample days ranged from 1% to 65%. Losses tended to increase with increasing diurnal temperature and relative humidity changes and with the fraction of ambient total N(--III) (particulate NH4+ plus gaseous NH3) present as gaseous NH3. The amount of ammonium lost at most sites could be explained by the amount of NH4NO3 present in the sampled aerosol. Ammonium losses at Great Smoky Mountains NP, however, significantly exceeded the amount of NH4NO3 collected. Ammoniated organic salts are suggested as additional important contributors to observed ammonium loss at this location.

Yu, Xiao-Ying; Lee, Taehyoung; Ayres, Benjamin; Kreidenweis, Sonia M.; Malm, William C.; Collett, Jeffrey L.

2006-08-01T23:59:59.000Z

452

Comment to the article "Temperature dependence of ultracold neutron loss rates" E.Korobkina et al., PRB 70,035409  

E-Print Network (OSTI)

In work [1] ("Temperature dependence of ultracold neutron loss rates" E.Korobkina et al., PRB 70,035409) results of measurement of temperature dependence of losses of ultracold neutrons (UCN) in a range from 4 K to 300 K at UCN storage in a copper trap are presented. At interpretation of experimental data it was artificially considered only the difference of losses rate 1/tau(T)= 1/tau_exp(T)- 1/tau_exp(10K), (tau - UCN storage time in the trap). It has been accepted for temperature dependence of losses which changes from 0 to 3.3*10-4 per one collision of UCN with a trap surface. However, the analysis of raw experimental data shows that in a trap at temperature 10 K there is losses 1.0*10-3 per collision. They are considerably (in 3 times) more than discussed temperature dependence and almost 10 times more than losses due to capture cross section on copper. It is the most probable that these losses are connected with leakage of UCN through a slit of trap shutter. Change of the size of a slits on 25% at change of temperature from 300K to 10K can quite explain discussed temperature dependence. Certainly, hydrogen is present on a surface, but as it was shown at work [2] (V.P.Alfimenkov et al., JETP., Vol. 55, No. 2 25 Jan.1992) temperature dependence in 3 times lower, even on the undegased surfaces than on the degassed and deuterated surface in work [1]. At last, deuteration of a trap surface allows almost completely to suppress temperature dependence connected with presence of hydrogen [2]. The conclusion of work [1] is that hydrogen is localized on a surface in the form of a film, instead of distribution in the surface substance. This conclusion contradicts results of measurement of energy dependence of UCN losses in work [2]. More detailed analysis of work [1] and works [2] is presented below.

A. Serebrov

2009-05-06T23:59:59.000Z

453

IEEE TRANSACTIONS ON ENERGY CONVERSION, VOL. 23, NO. 2, JUNE 2008 551 Sliding Mode Power Control of Variable-Speed Wind  

E-Print Network (OSTI)

IEEE TRANSACTIONS ON ENERGY CONVERSION, VOL. 23, NO. 2, JUNE 2008 551 Sliding Mode Power Control of Variable-Speed Wind Energy Conversion Systems Brice Beltran, Tarek Ahmed-Ali, and Mohamed El Hachemi in variable-speed wind energy conversion sys- tems (VS-WECS). These systems have two operation regions de

Paris-Sud XI, Université de

454

Biomass Losses During Harvest and Storage of Switchgrass  

SciTech Connect

Estimates of dry matter losses during harvest and storage of herbaceous biomass are needed to determine harvest efficiency and net biomass yeild. Losses of switchgrass (Panicum virgatum L.) biomass stored in large round bales as affected by protected and unprotected conditions in three experiments during 1992 to 1995. We also measured the losses of dry matter (DM) during the harvesting operation each year and determined the quantity and quality of runoff water from stored bales during one year. In Experiment 1, "Alamo" switchgrass was harvested in August 1992 and stored in 275 kg bales unprotected outside and on a grass sod for six months. In Experiments 2 and 3, switchgrass was harvested in November of 1993 and 1994, respectively, and stored in 370 kg bales for one year inside on concrete, outside on a grass sod unprotected from the elements or outside on a gravel pad. In each experiment, the biomass was field dried to 11 to 19% moisture and baled. The bales were weighed at the beginning and end of the storage period to determine DM losses. In Experiemnt 1, DM losses during six months of storage were 13% of the original bale dry weight. In Experiemnts 2 and 3, there were no differences (P>0.05) in DM losses (average of 5%) among outside treatments during the 12 months of storage. There were no biomass losses for bales stored inside in Experiment 2; however, there was a 2% loss in Experiment 3. Loses of DM during baling ranged from 1 to 5% depending on moisture concentration in the biomass at baling. Larger losses were associated with drier biomass, presumably because of more shattering. Quality and quantity of runoff water from bales were not different (P>0.05) from runoff water of control plots.

Sanderson, M. A.; Egg, R. P.; Wiselogel, A. E.

1997-01-01T23:59:59.000Z

455

Beilstein-Institut Reflections on Energy Conversion in  

E-Print Network (OSTI)

Beilstein-Institut Reflections on Energy Conversion in Biological and Biomimetic Systems Athel by conversion of the heat into work, chemical energy or electrical power, and the inevitable energy losses 2011 Abstract In principle any form of energy (light, electrical, potential, chemical, kinetic energy

456

The Density Effect for the Ionization Loss in Various Materials  

Science Journals Connector (OSTI)

The density effect for the ionization loss of charged particles has been calculated for a number of metals, scintillating materials, gases at various pressures, and photographic emulsion, using a dispersion model involving an appropriate number of dispersion oscillators for each substance. The results are presented in the form of graphs which can be used to correct the ionization loss for the density effect. The theoretical curves for silver chloride and anthracene are in reasonable agreement with experiments on the ionization loss of ?-mesons. A general derivation of the equations for the density effect is given.

R. M. Sternheimer

1952-11-15T23:59:59.000Z

457

Efficient Thermal Energy Distribution in Commercial Final Report  

E-Print Network (OSTI)

energy distribution. These include, but not limited to, 1) reducing thermal losses induced by air leakage through system components (i.e., duct, equipment), 2) decreasing thermal losses induced by heat conductionLBNL-41365 Efficient Thermal Energy Distribution in Commercial Buildings Final Report to California

458

Manufacturing Consumption of Energy 1994  

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

energy data used in this report do not reflect adjustments for losses in electricity generation or transmission. energy data used in this report do not reflect adjustments for losses in electricity generation or transmission. 1 The manufacturing sector is composed of establishments classified in Standard Industrial Classification 20 through 39 of the U.S. economy as defined 2 by the Office of Management and Budget. The manufacturing sector is a part of the industrial sector, which also includes mining; construction; and agriculture, forestry, and fishing. The EIA also conducts energy consumption surveys in the residential, commercial buildings, and residential transportation sectors: the Residential Energy 3 Consumption Survey (RECS); the Commercial Buildings Energy Consumption Survey (CBECS); and, until recently, the Residential Transportation Energy Consumption Survey (RTECS).

459

Calculating the Loss factor of the LCLS Beam Line Elements for Ultra-Shrot Bunches  

SciTech Connect

The Linac Coherent Light Source (LCLS) is a SASE 1.5-15 {angstrom} x-ray Free-Electron Laser (FEL) facility. Since an ultra-short intense bunch is used in the LCLS operation one might suggest that wake fields, generated in the vacuum chamber, may have an effect on the x-ray production because these fields can change the beam particle energies thereby increasing the energy spread in a bunch. At LCLS a feedback system precisely controls the bunch energy before it enters a beam transport line after the linac. However, in the transport line and later in the undulator section the bunch energy and energy spread are not under feedback control and may change due to wake field radiation, which depends upon the bunch current or on a bunch length. The linear part of the energy spread can be compensated in the upstream linac; the energy loss in the undulator section can be compensated by varying the K-parameter of the undulators, however we need a precise knowledge of the wake fields in this part of the machine. Resistive wake fields are known and well calculated. We discuss an additional part of the wake fields, which comes from the different vacuum elements like bellows, BPMs, transitions, vacuum ports, vacuum valves and others. We use the code 'NOVO' together with analytical estimations for the wake potential calculations.

Novokhatski, A.; /SLAC

2009-10-17T23:59:59.000Z

460

Swimming Pool Covers | Department of Energy  

Energy Savers (EERE)

1 degree, but each pound of 80F water that evaporates takes a whopping 1,048 Btu of heat out of the pool. This pie chart shows outdoor pool energy loss characteristics:...

Note: This page contains sample records for the topic "tem energy losses" 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

Calculations of atomic sputtering and displacement cross-sections in solid elements by electrons with energies from threshold to 1. 5 MV  

SciTech Connect

The kinetics of knock-on collisions of relativistic electrons with nuclei and details of the numerical evaluation of differential, recoil, and total Mott cross-sections are reviewed and discussed. The effects of electron beam induced displacement and sputtering, in the transmission electron microscope (TEM) environment, on microanalysis are analyzed with particular emphasis placed on the removal of material by knock-on sputtering. The mass loss predicted due to transmission knock-on sputtering is significant for many elements under conditions frequently encountered in microanalysis. Total Mott cross-sections are tabulated for all naturally occurring solid elements up to Z = 92 at displacement energies of one, two, four, and five times the sublimation energy and for accelerating voltages accessible in the transmission electron microscope. Fortran source code listings for the calculation of the differential Mott cross-section as a function of electron scattering angle (dMottCS), as a function of nuclear recoil angle (RECOIL), and the total Mott cross-section (TOTCS) are included. 48 refs., 21 figs., 12 tabs.

Bradley, C.R.

1988-12-01T23:59:59.000Z

462

Using Exergy to Assess Regional and National Energy Utilization: A Comparative Review  

Science Journals Connector (OSTI)

The use of exergy to assess energy-utilization efficiencies for energy systems is described. Furthermore, energy and exergy losses are compared, demonstrating that the latter ... or region, including flows of ene...

Marc A. Rosen

2013-02-01T23:59:59.000Z

463

Experimental investigation on the energy-saving diffuser of a main fan  

Science Journals Connector (OSTI)

The main fan diffuser in a coal mine is an energy-recycling equipment with a dynamic energy loss for the main fan. Engineering practices ... are irrational. To solve the problem, an energy-saving diffuser is desi...

Shi-qiang Chen; Hai-qiao Wang…

2012-03-01T23:59:59.000Z

464

Elemental mapping using omega-type energy gilter and imaging plate  

Science Journals Connector (OSTI)

......Cu-27.5at%P alloy with energy-filtere electron iffraction...Egerton R (1996): Electron Energy-Loss Spectroscopy in...ition. (Plenum Press, New York.) Reference...1 Reimer L (1995) Energy-Filtering ransmission......

Tatsuma Shibata; Yoichi Ikematsu; Daisuke Shindo

2001-01-01T23:59:59.000Z

465

Attainable Resolution of Energy-Selecting Image Using High-Voltage Electron Microscope  

Science Journals Connector (OSTI)

......mapping using an imaging energy filter: Image formation...elemental mapping In an energy filtering transmission...Egerton RF: Electron energy-loss spectroscopy In the electron microscope. New York and London: Plenum Press......

Hiroki Kurata; Sakumi Moriguchi; Seiji Isoda; Takashi Kobayashi

1996-02-01T23:59:59.000Z

466

Seismic Fragility Analysis and Loss Estimation for Concrete Structures  

E-Print Network (OSTI)

The main objective of this study is to develop a methodology to assess seismic vulnerability of concrete structures and to estimate direct losses related to structural damage due to future seismic events. This dissertation contains several...

Bai, Jong Wha

2012-02-14T23:59:59.000Z

467

Optimizing hysteretic power loss of magnetic ferrite nanoparticles  

E-Print Network (OSTI)

This thesis seeks to correlate hysteretic power loss of tertiary ferrite nanoparticles in alternating magnetic fields to trends predicted by physical models. By employing integration of hysteresis loops simulated from ...

Chen, Ritchie

2013-01-01T23:59:59.000Z

468

Mechanisms of intron gain and loss in Cryptococcus  

E-Print Network (OSTI)

Background: Genome comparisons across deep phylogenetic divergences have revealed that spliceosomal intron gain and loss are common evolutionary events. However, because of the deep divergences involved in these comparisons, ...

Neafsey, Daniel E.

469

Chapter 6 - Dangerous Herbal Weight-Loss Supplements  

Science Journals Connector (OSTI)

The United States and Mexico are among the most obese nations in the world. Weight-loss supplements containing herbs are popular on both sides of the US/Mexico border, but there is scant information as to their efficacy or safety. Two herbal products have recently been touted as being effective and safe for weight loss: candle nut tree seeds (‘Nuez de la India’) and yellow oleander seed (‘Codo de Fraile’). Both these products are dangerous and have caused serious health problems in various countries. People should be aware not to self-medicate with certain herbal supplements for weight loss. Keywords: Candle nut tree; Codo de Fraile; Complementary and alternative medicine; Herbal supplements; Nuez de la India; Obesity; Toxic plants; Weight loss; Yellow oleander

A. González-Stuart

2013-01-01T23:59:59.000Z

470

Loan Loss Reserve Funds and Other Credit Enhancements | Department...  

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

used by state and local governments to provide partial risk coverage to lenders-meaning that the reserve will cover a prespecified amount of loan losses. For example, an LLR...

471

Mass loss from red giants in the Magellanic Clouds  

E-Print Network (OSTI)

The Magellanic Clouds provide the ideal laboratory for the study of mass loss and molecule and dust formation in red giants as a function of luminosity and metal abundance. I present some recent observational work.

Jacco Th. van Loon

2005-03-02T23:59:59.000Z

472

Microsoft Word - Completion of an Evalution of Impact of Loss...  

NLE Websites -- All DOE Office Websites (Extended Search)

an Evaluation of the Impact of the Loss of Two Hydrogen and Methane Monitoring Sampling Lines Dear Mr. Bearzi: As required under Permit Condition IV.F.5.e, the Permittees are...

473

Mode conversation losses in overmolded millimeter wave transmission lines  

E-Print Network (OSTI)

Millimeter wave transmission lines are integral components for many important applications like nuclear fusion and NMR spectroscopy. In low loss corrugated transmission lines propagating the HE,1 mode with a high waveguide ...

Tax, David S. (David Samuel)

2008-01-01T23:59:59.000Z

474

Loan Loss Reserve Fund Risk-Sharing Formula  

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

When using a loan loss reserve (LLR) fund, the state or local government and financial institution must negotiate and agree to a risk-sharing formula with agreed-upon parameters.

475

Loan Loss Reserve Fund Impacts on Standard Residential Underwriting Guidelines  

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

State and local governments can use loan loss reserve (LLR) funds to persuade lenders to offer more flexible terms during the underwriting process. The availability of an LLR can have the following...

476

Ionisation Chambers for the LHC Beam Loss Detection  

E-Print Network (OSTI)

At the Large Hadron Collider (LHC) a beam loss system will be used to prevent and protect superconducting magnets against coil quenches and coil damages. Since the stored particle beam intensity is 8 orders of magnitude larger than the lowest quench level value particular attention is paid to the design of the secondary particle shower detectors. The foreseen ionisation chambers are optimised in geometry simulating the probable loss distribution along the magnets and convoluting the loss distribution with the secondary particle shower distributions. To reach the appropriate coverage of a particle loss and to determine the quench levels with a relative accuracy of 2 the number of the detectors and their lengths is weighted against the particle intensity density variation. In addition attention is paid to the electrical ionisation chamber signal to minimise the ion tail extension. This optimisation is based on time resolved test measurements in the PS booster. A proposal for a new ionisation chamber will be pre...

Gschwendtner, E; Dehning, B; Ferioli, G; Kain, V

2003-01-01T23:59:59.000Z

477

JLab mourns loss of colleague, visiting scientist Razmik Asaturyan...  

NLE Websites -- All DOE Office Websites (Extended Search)

Razmik Asaturyan Razmik views the Aerogel detector before its installation into the Hall C High Momentum Spectrometer. We are deeply saddened by the sudden loss of our long-time...

478

Indiana Energy Energy Challenges  

E-Print Network (OSTI)

Indiana Energy Conference Energy Challenges And Opportunities November 5, 2013 ­ 9:00 a.m. ­ 5:00 p spectrum of business sectors including: Energy Community Manufacturing Policymakers Finance Engineering of Energy & Water: A Well of Opportunity Our water and energy systems are inextricably linked. Energy

Ginzel, Matthew

479

Matter & Energy Wind Energy  

E-Print Network (OSTI)

See Also: Matter & Energy Wind Energy Energy Technology Physics Nuclear Energy Petroleum 27, 2012) -- Energy flowing from large-scale to small-scale places may be prevented from flowing, indicating that there are energy flows from large to small scale in confined space. Indeed, under a specific

Shepelyansky, Dima

480

Energy Efficiency & Renewable Energy  

E-Print Network (OSTI)

.S. Energy Consumption U.S. Primary Energy Consumption by Source and Sector Share of Energy Consumed byEnergy Efficiency & Renewable Energy 2010 Fuel Cell Project Kick-off Dr. Dimitrios Papageorgopoulos Fuel Cells Team Leader U.S. Department of Energy gy Fuel Cell Technologies Program September 28

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481

Estimate steam-turbine losses to justify maintenance funds  

SciTech Connect

A procedure to estimate steam-turbine losses is described. The estimates are based on analytical calculations and field inspections of turbines with known performance deterioration resulting from their environment, not their construction. They are, therefore, applicable to many types of steam turbines. Common causes of deterioration are the following: solid particle erosion, deposits, increased clearances, and peening or damage from foreign material. Performance losses due to these factors are analyzed. An example of application is given.

Not Available

1982-05-01T23:59:59.000Z

482

High-frequency losses in tin Josephson tunnel junctions  

Science Journals Connector (OSTI)

The losses associated with the excitation of surface plasma oscillations in Fiske modes in tin Josephson junctions, at frequencies from 20 to 270 GHz, were measured by studying the currentvoltage characteristics as a function of magnetic field. Our results generally support Economou and Ngai's theory of surface-plasma oscillations and Miller's calculation of the conductivity of superconductors. At lower temperatures, discrepancies that include an anomalous peak in the frequency dependence of the loss may reflect a small disagreement with Miller's results.

T. C. Wang and R. I. Gayley

1978-07-01T23:59:59.000Z

483

Article Published on LED Lumen Maintenance and Light Loss Factors  

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

An article has been published in LEUKOS: The Journal of the Illuminating Engineering Society of North America (IES) that may be of interest to the solid-state lighting community. Entitled "Lumen Maintenance and Light Loss Factors: Consequences of Current Design Practices for LEDs," the article was written by Michael Royer of Pacific Northwest National Laboratory and discusses complications related to the lamp lumen depreciation (LLD) light loss factor and LEDs.

484

3-D Magnetotelluric Investigations for geothermal exploration in Martinique (Lesser Antilles). Characteristic Deep Resistivity Structures, and Shallow Resistivity Distribution Matching Heliborne TEM Results  

E-Print Network (OSTI)

Within the framework of a global French program oriented towards the development of renewable energies, Martinique Island (Lesser Antilles, France) has been extensively investigated (from 2012 to 2013) through an integrated multi-methods approach, with the aim to define precisely the potential geothermal ressources, previously highlighted (Sanjuan et al., 2003). Amongst the common investigation methods deployed, we carried out three magnetotelluric (MT) surveys located above three of the most promising geothermal fields of Martinique, namely the Anses d'Arlet, the Montagne Pel{\\'e}e and the Pitons du Carbet prospects. A total of about 100 MT stations were acquired showing single or multi-dimensional behaviors and static shift effects. After processing data with remote reference, 3-D MT inversions of the four complex elements of MT impedance tensor without pre-static-shift correction, have been performed for each sector, providing three 3-D resistivity models down to about 12 to 30 km depth. The sea coast effe...

Coppo, Nicolas; Girard, Jean-François; Wawrzyniak, Pierre; Hautot, Sophie; Tarits, Pascal; Jacob, Thomas; Martelet, Guillaume; Mathieu, Francis; Gadalia, Alain; Bouchot, Vincent; Traineau, Hervé

2015-01-01T23:59:59.000Z

485

Energy-E cient Design of Battery-Powered Embedded Systems Tajana Simunicy Luca Benini Giovanni De Micheliy  

E-Print Network (OSTI)

Quality portable design demands high performance with low thermal dissipation and long battery lifeEnergy-E cient Design of Battery-Powered Embedded Systems Tajana Simunicy Luca Benini Giovanni De Bologna, ITALY 40136 Abstract Energy-e cient design of battery-powered embedded sys- tems demands

Simunic, Tajana

486

AC Loss Measurements on a 2G YBCO Coil  

SciTech Connect

The Oak Ridge National Laboratory (ORNL) is collaborating with Waukesha Electric Systems (WES) to continue development of HTS power transformers. For compatibility with the existing power grid, a commercially viable HTS transformer will have to operate at high voltages in the range of 138 kV and above, and will have to withstand 550-kV impulse voltages as well. Second-generation (2G) YBCO coated conductors will be required for an economically-competitive design. In order to adequately size the refrigeration system for these transformers, the ac loss of these HTS coils must be characterized. Electrical AC loss measurements were conducted on a prototype high voltage (HV) coil with co-wound stainless steel at 60 Hz in a liquid nitrogen bath using a lock-in amplifier technique. The prototype HV coil consisted of 26 continuous (without splice) single pancake coils concentrically centered on a stainless steel former. For ac loss measurement purposes, voltage tap pairs were soldered across each set of two single pancake coils so that a total of 13 separate voltage measurements could be made across the entire length of the coil. AC loss measurements were taken as a function of ac excitation current. Results show that the loss is primarily concentrated at the ends of the coil where the operating fraction of critical current is the highest and show a distinct difference in current scaling of the losses between low current and high current regimes.

Rey, Christopher M [ORNL] [ORNL; Duckworth, Robert C [ORNL] [ORNL; Schwenterly, S W [ORNL] [ORNL

2011-01-01T23:59:59.000Z

487

Mass loss in main-sequence B stars  

E-Print Network (OSTI)

We calculate radiatively driven wind models of main-sequence B stars and provide the wind mass-loss rates and terminal velocities. The main-sequence mass-loss rate strongly depends on the stellar effective temperature. For the hottest B stars the mass-loss rate amounts to $10^{-9}\\,\\text{M}_\\odot\\,\\text{year}^{-1}$, while for the cooler ones the mass-loss rate is by more than three orders of magnitude lower. Main sequence B stars with solar abundance and effective temperatures lower than about $15\\,000\\,\\text{K}$ (later than the spectral type B5) do not have any homogeneous line-driven wind. We predict the wind mass-loss rates for the solar chemical composition and for modified abundance of heavier elements to study the winds of chemically peculiar stars. The mass-loss rate may both increase or decrease with increasing abundance depending on the importance of the induced emergent flux redistribution. Stars with overabundant silicon may have homogeneous winds even below the solar abundance wind limit at $15\\,0...

Krticka, Jiri

2014-01-01T23:59:59.000Z

488

EMSL: Science: Energy Materials and Processes  

NLE Websites -- All DOE Office Websites (Extended Search)

Energy Materials & Processes Energy Materials & Processes Energy Materials logo TEM image In situ transmission electron microscopy at EMSL was used to study structural changes in the teamÂ’s new anode system. Real-time measurements show silicon nanoparticles inside carbon shells before (left) and after (right) lithiation. Energy Materials and Processes focuses on the dynamic transformation mechanisms and physical and chemical properties at critical interfaces in catalysts and energy materials needed to design new materials and systems for sustainable energy applications. By facilitating the development and rapid dissemination of critical molecular-level information along with predictive modeling of interfaces and their unique properties EMSL helps enable the design and development of practical, efficient, environmentally

489

Pin stack array for thermoacoustic energy conversion  

DOE Patents (OSTI)

A thermoacoustic stack for connecting two heat exchangers in a thermoacoustic energy converter provides a convex fluid-solid interface in a plane perpendicular to an axis for acoustic oscillation of fluid between the two heat exchangers. The convex surfaces increase the ratio of the fluid volume in the effective thermoacoustic volume that is displaced from the convex surface to the fluid volume that is adjacent the surface within which viscous energy losses occur. Increasing the volume ratio results in an increase in the ratio of transferred thermal energy to viscous energy losses, with a concomitant increase in operating efficiency of the thermoacoustic converter. The convex surfaces may be easily provided by a pin array having elements arranged parallel to the direction of acoustic oscillations and with effective radial dimensions much smaller than the thicknesses of the viscous energy loss and thermoacoustic energy transfer volumes.

Keolian, Robert M. (Monterey, CA); Swift, Gregory W. (Santa Fe, NM)

1995-01-01T23:59:59.000Z

490

Diets with High or Low Protein Content and Glycemic Index for Weight-Loss Maintenance  

Science Journals Connector (OSTI)

...achieved in the study were 5.4 percentage points of total energy in protein content between the high-protein and the low-protein groups and 4.7 glycemic-index units between the low-glycemic-index and the high-glycemic-index groups. Measurement of urinary nitrogen excretion confirmed adherence to the diets... Overweight adults who had lost weight on a low-calorie diet were randomly assigned to a maintenance diet and followed for 26 weeks. Diets with a higher protein content, a lower glycemic index, or both appeared to improve the diet-completion rate and weight-loss maintenance.

Larsen T.M.; Dalskov S.-M.; van Baak M.

2010-11-25T23:59:59.000Z

491

Energy 101 | Department of Energy  

Office of Environmental Management (EM)

Energy Literacy Energy 101 Energy 101 What is the Energy 101 Initiative? The Energy 101 Dialogue Series: Dialogue 1: Energy in the Classroom Webinar Slides Increasing...

492

Optimization of non-evacuated receiver of solar collector having non-uniform temperature distribution for minimum heat loss  

Science Journals Connector (OSTI)

Abstract The present paper contains a numerical study of heat loss from a non-evacuated receiver typically used in parabolic trough collectors. To calculate temperature distributions on the receiver pipe (TP), an energy balance has been established over the entire cross-section of the receiver pipe at different fluid temperatures. In the energy balance, the flux distribution has been estimated by assuming normal incidence of solar insolation considering the sun as a point source. The temperature distributions of the receiver pipe are found, as per expectation, to be non-uniform. These temperature distributions have been fitted by sinusoidal and step functions and are used as temperature boundary conditions in a CFD study to optimize the size of the receiver. The mechanisms of heat loss that have been considered in this study are heat loss from (1) pipe to glass tube by conduction, convection and radiation and (2) glass tube to surrounding by convection (natural and forced) and radiation. The values of diameters of receiver pipe taken in this study are 33 mm, 48 mm, 60 mm, 70 mm, 89 mm and 102 mm. The radius ratio (RR) varied from 1.2 to 3 by changing diameter of glass tube. It is observed that, the critical value of RR for minimum heat loss is dependent upon receiver pipe diameter (DPo). The critical values of RR for pipe diameter (DPo) 33 mm, 48 mm, 60 mm, 70 mm, 89 mm and 102 mm are 1.5, 1.4, 1.375, 1.35, 1.3 and 1.25 respectively. The value of critical RR is lower for higher values of pipe diameter. The value of critical RR for a particular diameter of receiver is independent of receiver temperature and external wind velocity. Comparison of heat losses in non-uniform and uniform temperature cases shows that the values of heat losses in the two cases differ only by 1.5%.

Ramchandra G. Patil; Sudhir V. Panse; Jyeshtharaj B. Joshi

2014-01-01T23:59:59.000Z

493

Building Energy Software Tools Directory: Energy Demand Modeling  

NLE Websites -- All DOE Office Websites (Extended Search)

Energy Demand Modeling Energy Demand Modeling The software is intended to be used for Energy Demand Modeling. This can be utilized from regional to national level. A Graphical User Interface of the software takes the input from the user in a quite logical and sequential manner. These input leads to output in two distinct form, first, it develops a Reference Energy System, which depicts the flow of energy from the source to sink with all the losses incorporated and second, it gives a MATLAB script file for advance post processing like graphs, visualization and optimizations to develop and evaluate the right energy mix policy frame work for a intended region. Keywords Reference Energy System, Software, GUI, Planning, Energy Demand Model EDM, Energy Policy Planning Validation/Testing

494

Annual Energy Outlook with Projections to 2025-Market Trends - Energy  

Gasoline and Diesel Fuel Update (EIA)

Energy Demand Energy Demand Index (click to jump links) Residential Sector Commercial Sector Industrial Sector Transportation Sector Energy Demand in Alternative Technology Cases Annual Growth in Energy Use Is Projected To Continue Net energy delivered to consumers represents only a part of total primary energy consumption. Primary consumption includes energy losses associated with the generation, transmission, and distribution of electricity, which are allocated to the end-use sectors (residential, commercial, and industrial) in proportion to each sectorÂ’s share of electricity use [103]. Figure 45. Primary and delivered energy consumption, excluding transportation use, 1970-2025 (quadrillion Btu). Having problems, call our National Energy Information Center at 202-586-8800 for help.

495

AIG Global Alternative Energy Practice | Open Energy Information  

Open Energy Info (EERE)

AIG Global Alternative Energy Practice AIG Global Alternative Energy Practice Jump to: navigation, search Name AIG Global Alternative Energy Practice Place New York, New York Zip 10038 Sector Renewable Energy Product Practice to service the insurance, risk management and loss control needs of US-based renewable energy clients. References AIG Global Alternative Energy Practice[1] LinkedIn Connections CrunchBase Profile No CrunchBase profile. Create one now! This article is a stub. You can help OpenEI by expanding it. AIG Global Alternative Energy Practice is a company located in New York, New York . References ↑ "AIG Global Alternative Energy Practice" Retrieved from "http://en.openei.org/w/index.php?title=AIG_Global_Alternative_Energy_Practice&oldid=341930" Categories:

496

Biomass losses during harvest and storage of switchgrass  

SciTech Connect

We determined the effects of environmental factors on switchgrass biomass stored in large round bales as affected by protected and unprotected conditions in four experiments during 1991 to 1995. Additionally, we measured the losses of dry matter during the biomass harvesting process (cutting, drying, and baling) and determined the quantity and quality of runoff waste from stored bales. In Experiments 1 and 2, `Alamo` switchgrass was harvested in October 1991 and August 1992, respectively, and stored in 275-kg bales unprotected outside for six months. In Experiments 3 and 4, switchgrass was harvested in November of 1993 and 1994, respectively, and stored in 380-kg bales for one year. In each experiment, the biomass was field dried to less than 11 to 19% moisture and baled. Losses during baling in 1993 and 1994 were measured by collecting biomass at the baler and gleaned from the stubble. In 1993 and 1994, bales were stored inside on concrete, outside on a grass sod unprotected from the elements, or outside on a gravel pad. In each experiment, bales from each treatment were destructively sampled periodically to determine the depth of weathered biomass and composition of weathered and unweathered biomass. Most of the visible weathering in the bales occurred in the surface 7 to 15 cm in each experiment. In Experiment 2, losses during storage were 13% of the biomass initially present. In Experiment 3, there were no differences (P > 0.05) among outside storage treatments in losses of biomass during the 12 months (average of 4.7%). There were no biomass losses for bales stored inside. Losses of biomass during baling ranged from 1 to 5% depending on moisture concentration in the biomass at baling. Larger losses were associated with drier biomass, presumably because of more shattering. Quality and quantity of runoff water from bales were not different (P > 0.05) from runoff water of control plots.

Sanderson, M.A.; Egg, R.P.; Coble, C.G. [Texas A& M Univ., College Station, TX (United States)

1995-11-01T23:59:59.000Z

497

Radio and X-Ray Emission as Probes of Type IIP Supernovae and Red Supergiant Mass Loss  

E-Print Network (OSTI)

Type IIP (plateau) supernovae are thought to come from stars with initial mass about 8-25 solar masses that end their lives as red supergiants. The expected stellar end points can be found from evolutionary calculations and the corresponding mass loss properties at this point can be estimated from typical values for Galactic stars. The mass loss densities of observed supernovae can be estimated from observations of the thermal X-ray and radio synchrotron emission that result from the interaction of the supernova with the surrounding wind. Type IIP supernovae are expected to have energy-conserving interaction during typical times of observation. Because Type IIP supernovae have an extended period of high optical luminosity, Compton cooling can affect the radio emitting electrons, giving rise to a relatively flat radio light curve in the optically thin regime. Alternatively, a high efficiency of magnetic field production results in synchrotron cooling of the radio emitting electrons. Both the X-ray and radio luminosities are sensitive to the mass loss and initial masses of the progenitor stars, although the turn-on of radio emission is probably the best estimator of circumstellar density. Both the mass loss density and the variation of density with stellar mass are consistent with expectations for the progenitor stars deduced from direct observations of recent supernovae. Current observations are consistent with mass being the only parameter; observations of a supernova in a metal poor region might show how the mass loss depends on metallicity.

Roger A. Chevalier; Claes Fransson; Tanja K. Nymark

2005-09-15T23:59:59.000Z

498

Energy-Efficient Transmission for Multimedia Streams in Last-hop Wireless Internet  

E-Print Network (OSTI)

Energy-Efficient Transmission for Multimedia Streams in Last-hop Wireless Internet Invited Paper characteristics that can be leveraged to design energy-efficient loss recovery mechanisms. Given their loss, we first present an analysis of an energy-efficient MAC-layer protocol, called Fast Transmit MAC

Kravets, Robin

499

An assessment of unforeseen losses resulting from inappropriate use of solar home systems in South Africa  

Science Journals Connector (OSTI)

Abstract One of the challenges to the sustainability of the Solar Home System (SHS) electrification program in South Africa is equipment theft. In response to this, communities susceptible to solar panel theft resort to mounting their panels flat on the ground so they can be looked after during the day and taken indoors at night for safe keeping. Other households use their security lights to illuminate their environment and provide security for pole and roof mounted solar panels at night. These actions have consequential effects on the performance of the SHS. Several studies have detected resentment from households regarding the low power quality from these systems. Most scientific contributions on the issue of low power from SHS have focused on the challenges based on the technical designs of the systems. The power losses due to the usage pattern of the system has not received much attention. This study therefore reports on the technical losses as a result of the deviation from the designed and installed specification of the system by the users in order to protect their systems. It also investigates the linkage between the technical and economic losses which affects the sustainability of SHS program. A case study was performed in Thlatlaganya village within Limpopo province in South Africa. Technical analysis using PVSYST solar software revealed that the energy output and performance of the battery is compromised as a result of these practices. Economic analysis indicates that the battery life and the economics of owning and operating SHS are affected negatively. The study recommends solutions to mitigate these losses, and proposes a cost effective way of optimizing the operation of SHS using a Bench-Rack system for mounting solar panels.

Chukwuma Leonard Azimoh; Fredrik Wallin; Patrik Klintenberg; Björn Karlsson

2014-01-01T23:59:59.000Z

500

Total Energy - Data - U.S. Energy Information Administration (EIA)  

Gasoline and Diesel Fuel Update (EIA)

Electricity Flow, (Quadrillion Btu) Electricity Flow, (Quadrillion Btu) Electricity Flow diagram image Footnotes: 1 Blast furnace gas, propane gas, and other manufactured and waste gases derived from fossil fuels. 2 Batteries, chemicals, hydrogen, pitch, purchased steam, sulfur, miscellaneous technologies, and non-renewable waste (municipal solid waste from non-biogenic sources, and tire-derived fuels). 3 Data collection frame differences and nonsampling error. Derived for the diagram by subtracting the "T & D Losses" estimate from "T & D Losses and Unaccounted for" derived from Table 8.1. 4 Electric energy used in the operation of power plants. 5 Transmission and distribution losses (electricity losses that occur between the point of generation and delivery to the customer) are estimated