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1

Platinum Nanoclusters Out-Perform Single Crystals  

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

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2

Platinum Nanoclusters Out-Perform Single Crystals  

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

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3

Platinum Nanoclusters Out-Perform Single Crystals  

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

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4

Platinum Nanoclusters Out-Perform Single Crystals  

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

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5

Platinum Nanoclusters Out-Perform Single Crystals  

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

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6

Platinum Nanoclusters Out-Perform Single Crystals  

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

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7

Platinum Nanoclusters Out-Perform Single Crystals  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the1 - September 2006Photovoltaic Theory andVelocity ProfileStorage

8

Platinum Nanoclusters Out-Perform Single Crystals  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the1 - September 2006Photovoltaic Theory andVelocity ProfileStoragePlatinum

9

Platinum Nanoclusters Out-Perform Single Crystals  

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

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10

Platinum Nanoclusters Out-Perform Single Crystals  

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

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

11

Platinum Nanoclusters Out-Perform Single Crystals  

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

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

12

Platinum Nanoclusters Out-Perform Single Crystals  

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

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

13

Stability Of Nanoclusters In 14YWT Oxide Dispersion Strengthened...  

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

Stability Of Nanoclusters In 14YWT Oxide Dispersion Strengthened Steel Under Heavy Ion-irradiation By Atom Probe Tomography. Stability Of Nanoclusters In 14YWT Oxide Dispersion...

14

Radiation Stability of Nanoclusters in Nano-structured Oxide...  

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

Stability of Nanoclusters in Nano-structured Oxide Dispersion Strengthened (ODS) Steels. Radiation Stability of Nanoclusters in Nano-structured Oxide Dispersion Strengthened (ODS)...

15

NREL Scientists Reveal Origin of Diverse Melting Behaviors of Aluminum Nanoclusters (Fact Sheet)  

SciTech Connect (OSTI)

Research reveals active role of cluster symmetries on the size-sensitive, diverse melting behaviors of metallic nanoclusters, providing insight to understanding phase changes of nanoparticles for thermal energy storage. Unlike macroscopic bulk materials, intermediate-sized nanoclusters with around 55 atoms inherently exhibit size-sensitive melting changes: adding just a single atom to a nanocluster can cause a dramatic change in melting behavior. Microscopic understanding of thermal behaviors of metal nanoclusters is important for nanoscale catalysis and thermal energy storage applications. However, it is a challenge to obtain a structural interpretation at the atomic level from measured thermodynamic quantities such as heat capacity. Using ab initio molecular dynamics simulations, scientists at the National Renewable Energy Laboratory (NREL) revealed a clear correlation between the diverse melting behaviors of aluminum nanoclusters and cluster core symmetries. These simulations reproduced, for the first time, the size-sensitive heat capacities of aluminum nanoclusters, which exhibit several distinctive shapes associated with the diverse melting behaviors of the clusters. The size-dependent, diverse melting behaviors of the aluminum clusters are attributed to the reduced symmetry (from Td {yields} D2d {yields} Cs) with increasing the cluster sizes and can be used to help design thermal storage materials.

Not Available

2011-10-01T23:59:59.000Z

16

Molecular Dynamics Simulations of Supported Pt Nanoclusters  

E-Print Network [OSTI]

¤Introduction and Background ¤Constructing a Physical Model ¤Details of the Simulation ¤Results and Conclusions · Petroleum reformation · Gasification of biomass for biofuels #12;Previous Investigation of NanoclustersMolecular Dynamics Simulations of Supported Pt Nanoclusters Jeffrey Moore #12;A Brief Outline

Washington at Seattle, University of - Department of Physics, Electroweak Interaction Research Group

17

Purification of recombinant proteins with magnetic nanoclusters  

E-Print Network [OSTI]

This thesis focused on the development and analysis of a new class of magnetic fluids for recovery of recombinant proteins from fermentation broth. Magnetic fluids are colloidally stable dispersions of magnetic nanoclusters ...

Ditsch, Andre (Andre Paul)

2005-01-01T23:59:59.000Z

18

Structural Transition of Gold Nanoclusters: From the Golden Cage...  

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

Nanoclusters: From the Golden Cage to the Golden Pyramid . Abstract: How nanoclusters transform from one structural type to another as a function of size is a critical issue in...

19

Optical guiding of absorbing nanoclusters in air  

E-Print Network [OSTI]

Optical guiding of absorbing nanoclusters in air Vladlen G. Shvedov1-3, Anton S. Desyatnikov1124@rsphysse.anu.edu.au Abstract: We suggest a novel approach in all-optical trapping employing number of particles in a dual beam optical trap created by two counter-propagating and co

20

SCIENCE CAREER Al nanoclusters in coagulants and granulates: application  

E-Print Network [OSTI]

SCIENCE CAREER Al nanoclusters in coagulants and granulates: application in arsenic removal from suitable for arsenic removal. The aluminum nanocl- usters Al13 (AlO4Al12(OH)24H2O12 7? ) and Al30 (Al2O8Al coagulant or in Al granulate during water treatment. Keywords Arsenic Á Water treatment Á Al nanoclusters Á

Wehrli, Bernhard

Note: This page contains sample records for the topic "nanoclusters out-perform single" 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

Atomistic modeling of Ru nanocluster formation on graphene/Ru(0001): Thermodynamically versus kinetically directed-assembly  

E-Print Network [OSTI]

Atomistic modeling of Ru nanocluster formation on graphene/Ru(0001): Thermodynamically versus nanocluster formation on a monolayer of graphene supported on Ru(0001) at 309 K. Nanocluster density, mean

Ulm, Universität

22

Fabrication of metallic nanostructures from sputtered nanocluster precursors  

E-Print Network [OSTI]

This thesis studies the morphological and electrical properties of copper nanocluster devices generated by DC magnetron sputtering and annealed at temperatures up to 1100 C. At each annealing step, the resistivity of the ...

DelHagen, William S

2004-01-01T23:59:59.000Z

23

Ion irradiation of Fe-Fe oxide core-shell nanocluster films:...  

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

irradiation of Fe-Fe oxide core-shell nanocluster films: Effect of interface on stability of magnetic properties. Ion irradiation of Fe-Fe oxide core-shell nanocluster films:...

24

Structure of Palladium Nanoclusters for Hydrogen Gas Sensors  

SciTech Connect (OSTI)

Palladium nanoclusters produced by inert gas aggregation/magnetron sputtering are used as building blocks for the construction of nano electronic devices with large surface to volume ratios that can be used as sensitive hydrogen gas sensors in fuel cells and in petrochemical plants. X-ray diffraction (XRD), extended X-ray absorption fine structure (EXAFS), and high resolution transmission electron microscopy (HRTEM) have been used to characterize the structure, lattice constant, particle diameter and oxide thickness of the palladium nanoclusters in order to understand the operation of these sensors. Grazing incidence XRD (GIXRD) of heat treated Pd clusters has shown that the palladanite structure forms at elevated temperatures.

Stevens, K.J.; Ingham, B.; Toney, M.F.; Brown, S.A.; Lassesson, A.; /SLAC, SSRL /Canterbury U.

2009-05-11T23:59:59.000Z

25

Quantum confinement in GaP nanoclusters  

SciTech Connect (OSTI)

We have prepared GaP and GaAs nanoclusters from organometallic condensation reactions of E[Si(ChH{sub 3})3]3 (E = P, As) and GaCl{sub 3}. The size of the as synthesized clusters is 10 {Angstrom} to 15 {Angstrom}. Larger clusters of 20 {Angstrom} to 30 {Angstrom} size were obtained by thermal annealing of the as grown material. X-ray diffraction and transmission electron microscopy confirm the high crystalline quality. A lattice contraction of 6.7% could be seen for 10 {Angstrom} sized GaAs clusters. The clusters are nearly spherical in shape. Optical absorption spectra show a distinct line which can be assigned to the fundamental transition of the quantum confined electronic state. The measured blue shift, with respect to the GaP bulk absorption edge is 0.53 eV. As the cluster is smaller than the exciton radius, we can calculate the cluster size from this blue shift and obtain 20.2 {Angstrom}, consistent with the results from X-ray diffraction of 19.5 {Angstrom} for the same sample.

Laurich, B.K.; Smith, D.C.; Healy, M.D.

1994-06-01T23:59:59.000Z

26

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

SciTech Connect (OSTI)

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

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

2013-12-21T23:59:59.000Z

27

Formation of single-phase BaO nanoclusters. | EMSL  

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

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28

Growth and characterization of barium oxide nanoclusters on YSZ(111). |  

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

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

29

ZnO nanoclusters: Synthesis and photoluminescence. | EMSL  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear SecurityTensile Strain Switched FerromagnetismWaste andAnniversary, part 2Zenoss, VersionThe Role ofZnO nanoclusters:

30

Size-dependent mobility of gold nano-clusters during growth on chemically modified graphene  

SciTech Connect (OSTI)

Gold nano-clusters were grown on chemically modified graphene by direct sputter deposition. Transmission electron microscopy of the nano-clusters on these electron-transparent substrates reveals an unusual bimodal island size distribution (ISD). A kinetic Monte Carlo model of growth incorporating a size-dependent cluster mobility rule uniquely reproduces the bimodal ISD, providing strong evidence for the mobility of large clusters during surface growth. The cluster mobility exponent of ?5/3 is consistent with cluster motion via one-dimensional diffusion of gold atoms around the edges of the nano-clusters.

Bell, Gavin R., E-mail: gavin.bell@warwick.ac.uk; Dawson, Peter M.; Pandey, Priyanka A.; Wilson, Neil R. [Department of Physics, University of Warwick, Coventry CV4 7AL (United Kingdom); Mulheran, Paul A. [Department of Chemical and Process Engineering, University of Strathclyde, James Weir Building, 75 Montrose St., Glasgow G1 1XJ (United Kingdom)

2014-01-01T23:59:59.000Z

31

Optimal packing size of non-ligated CdSe nanoclusters for microstructure synthesis  

SciTech Connect (OSTI)

Structural and electrostatic properties of nanoclusters of CdSe of diameter 12?nm are studied with first principle calculations to determine the optimal size for synthesizing microstructures. Based on robustness of the core structure, i.e., the retention of tetrahedral geometry, hexagonal ring structure, and overall wu{sup }rtzite structure to surface relaxations, we conclude that nanoclusters of ?2?nm diameter are the best candidates to form a dense microstructure with minimal interstitial space. Se-terminated surfaces retain a zigzag structure as Se atoms are pulled out and Cd atoms are pulled in due to relaxation, therefore, are best suited for inter-nanocluster formations.

Tefera, Anteneh G.; Mochena, Mogus D. [Department of Physics, Florida A and M University, Tallahassee, Florida 32307 (United States); Johnson, Elijah [School of Environment, Florida A and M University, Tallahassee, Florida 32307 (United States); Dickerson, James [Department of Physics, Brown University, Providence, Rhode Island 02912 (United States)

2014-09-14T23:59:59.000Z

32

Scanning tunneling microscopic studies of SiO2 thin film supported metal nano-clusters  

E-Print Network [OSTI]

This dissertation is focused on understanding heterogeneous metal catalysts supported on oxides using a model catalyst system of SiO2 thin film supported metal nano-clusters. The primary technique applied to this study is scanning tunneling...

Min, Byoung Koun

2005-11-01T23:59:59.000Z

33

Self-assembly of two-dimensional nanoclusters observed with STM: From surface molecules to surface superstructure  

E-Print Network [OSTI]

Self-assembly of two-dimensional nanoclusters observed with STM: From surface molecules to surface on the Si 111 - 3 3-Ag surface at submonolayer Au coverage. Self-assembly of these Au nanoclusters leads nanoclus- ter are discussed in terms of a substrate-mediated interaction among the Au adatoms, and the self-assembling

Hasegawa, Shuji

34

Stability of nanoclusters in 14YWT oxide dispersion strengthened steel under heavy ion-irradiation by atom probe tomography  

SciTech Connect (OSTI)

14YWT oxide dispersion strengthened (ODS) ferritic steel was irradiated with of 5 MeV Ni2+ ions, at 300 C, 450 C, and 600 C to a damage level of 100 dpa. The stability of TiYO nanoclusters was investigated by applying atom probe tomography (APT) in voltage mode, of the samples before and after irradiations. The average size and number density of the nanoclusters was determined using the maximum separation method. These techniques allowed for the imaging of nanoclusters to sizes well below the resolution limit of conventional transmission electron microscopy techniques. The most significant changes were observed for samples irradiated at 300 C where the size (average Guinier radius) and number density of nanoclusters were observed to decrease from 1.1 nm to 0.8 nm and 12 1023 to 3.6 1023, respectively. In this study, the nanoclusters are more stable at higher temperature.

Jianchao He; Farong Wan; Kumar Sridharan; Todd R. Allen; A. Certain; V. Shutthanandan; Y.Q. Wu

2014-12-01T23:59:59.000Z

35

Stability Of Nanoclusters In 14YWT Oxide Dispersion Strengthened Steel Under Heavy Ion-irradiation By Atom Probe Tomography  

SciTech Connect (OSTI)

14YWT oxide dispersion strengthened (ODS) ferritic steel was irradiated with of 5 MeV Ni2+ ions, at 300 C, 450 C, and 600 C to a damage level of 100 dpa. The stability of TiYO nanoclusters was investigated by applying atom probe tomography (APT) in voltage mode, of the samples before and after irradiations. The average size and number density of the nanoclusters was determined using the maximum separation method. These techniques allowed for the imaging of nanoclusters to sizes well below the resolution limit of conventional transmission electron microscopy techniques. The most significant changes were observed for samples irradiated at 300 C where the size (average Guinier radius) and number density of nanoclusters were observed to decrease from 1.1 nm to 0.8 nm and 12 1023 to 3.6 1023, respectively. In this study, the nanoclusters are more stable at higher temperature.

He, Jianchao; Wan, F.; Sridharan, Kumar; Allen, Todd R.; Certain, Alicia G.; Shutthanandan, V.; Wu, Yaqiao

2014-12-01T23:59:59.000Z

36

Guided self-assembly of Au nanocluster arrays electronically coupled to semiconductor device layers  

E-Print Network [OSTI]

Guided self-assembly of Au nanocluster arrays electronically coupled to semiconductor device layers clusters within patterned regions on GaAs device layers, thus demonstrating guided self-assembly on a substrate which can provide interesting semiconductor device characteristics. Uniform nanometer scale

Woodall, Jerry M.

37

Guided Self-Assembly of Au Nanocluster Arrays Electronically Coupled to Semiconductor Device Layers  

E-Print Network [OSTI]

Guided Self-Assembly of Au Nanocluster Arrays Electronically Coupled to Semiconductor Device Layers diameter Au clusters within patterned regions on GaAs device layers, thus demonstrating guided self-assembly ordering of the clusters is achieved by a chemical self- assembly process, while micron scale patterning

38

Water as Buffer Material for Gold Nanocluster Growth Elad Gross, Yonatan Horowitz, and Micha Asscher*  

E-Print Network [OSTI]

in the same buffer layer thickness range. Significantly different morphology of the clusters is obtained when are the basis for industrial heterogeneous catalysis.1-4 Gold nanoclusters held on oxide substrates were silicon oxide, SiO2/ Si(100), was chosen as the substrate in this study as a model for silica supports

Asscher, Micha

39

Optical excitations of metallic nanoclusters buried in TiO2 for solar photochemistry  

E-Print Network [OSTI]

to the solar spectrum.3 A natural dielectric to consider is to encapsulate these metal clusters supported on TiOptical excitations of metallic nanoclusters buried in TiO2 for solar photochemistry Fei WangV range, a much better match to the solar spectrum than the 3.8 eV Ag plasmon. AFM measurements indicate

40

CO Oxidation mechanism on CeO2-supported Au nanoclusters  

SciTech Connect (OSTI)

To reveal the richer chemistry of CO oxidation by CeO2 supported Au Nanoclusters(NCs)/Nanoparticles, we design Au13 and Au12 supported on a flat and a stepped-CeO2 model (Au/CeO2) and study various kinds of CO oxidation mechanisms at the Au-CeO2 interface and the Au NC as well.

Kim H. Y.; Henkelman, G.

2013-09-08T23:59:59.000Z

Note: This page contains sample records for the topic "nanoclusters out-perform single" 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

Restructuring of hex-Pt(100) under CO gas environments: formation of 2-D nanoclusters  

SciTech Connect (OSTI)

The atomic-scale restructuring of hex-Pt(100) induced by carbon monoxide with a wide pressure range was studied with a newly designed chamber-in-chamber high-pressure STM and theoretical calculations. Both experimental and DFT calculation results show that CO molecules are bound to Pt nanoclusters through a tilted on-top configuration with a separation of {approx}3.7-4.1 {angstrom}. The phenomenon of restructuring of metal catalyst surfaces induced by adsorption, and in particular the formation of small metallic clusters suggests the importance of studying structures of catalyst surfaces under high pressure conditions for understanding catalytic mechanisms.

Tao, Feng; Dag, Sefa; Wang, Lin-Wang; Liu, Zhi; Butcher, Derek; Salmeron, Miquel; Somorjai, Gabor A.

2009-04-24T23:59:59.000Z

42

Spin Dynamics in Two-Dimensional Arrays of Quantum Dots with Local Ordering of Nanoclusters  

SciTech Connect (OSTI)

Electron paramagnetic resonance (EPR) is used to probe the spin dynamics in two-dimensional (2D) quantum dot (QD) arrays with local ordering of nanoclusters. A careful examination of EPR line shape, width and g-factor values allow us to attribute this signal to the electrons localized in the strain-induced potential wells in Si in the vicinity of the Ge dots. The strong orientation dependence of EPR line width is defined by changing localization degree of electrons at different magnetic field directions. The theoretical approximation of orientation dependence of EPR line width allows estimating the effective radius of electron localization, as {approx}80 nm.

Zinovieva, A. F.; Dvurechenskii, A. V.; Stepina, N. P.; Nikiforov, A. I.; Lyubin, A. S. [Institute of Semiconductor Physics, 630090 Novosibirsk, pr. Lavrentieva 13 (Russian Federation); Sobolev, N.; Carmo, M. C. [Departamento de Fisica e I3N, Universidade de Aveiro, Aveiro (Portugal)

2011-12-23T23:59:59.000Z

43

Ultrasmall Glutathione-Protected Gold Nanoclusters as Next Generation Radiotherapy Sensitizers with High Tumor Uptake and High Renal Clearance  

E-Print Network [OSTI]

Radiotherapy is often the most straightforward first line cancer treatment for solid tumors. While it is highly effective against tumors, there is also collateral damage to healthy proximal tissues especially with high doses. The use of radiosensitizers is an effective way to boost the killing efficacy of radiotherapy against the tumor while drastically limiting the received dose and reducing the possible damage to normal tissues. Here, we report the design and application of a good radiosensitizer by using ultrasmall gold nanoclusters with a naturally occurring peptide (e.g., glutathione or GSH) as the protecting shell. The GSH coated gold nanoclusters can escape the RES absorption, leading to a good tumor uptake (8.1% ID/g at 24 h post injection). As a result, the as-designed Au nanoclusters led to a strong enhancement for radiotherapy, as well as a negligible damage to normal tissues. After the treatment, the ultrasmall gold nanoclusters can be efficiently cleared by the kidney, thereby avoiding potential ...

Zhang, Xiao-Dong; Chen, Jie; Song, Shasha; Yuan, Xun; Shen, Xiu; Wang, Hao; Sun, Yuanming; Gao, Kai; Zhang, Lianfeng; Fan, Saijun; Leong, David Tai; Guo, Meili; Xie, Jianping

2015-01-01T23:59:59.000Z

44

Atomistic modeling of the directed-assembly of bimetallic Pt-Ru nanoclusters on Ru(0001)-supported monolayer graphene  

E-Print Network [OSTI]

)-supported monolayer graphene Yong Han,1 Albert K. Engstfeld,2 R. Juergen Behm,2 and James W. Evans1,3,* 1 of Pt-Ru nanoclusters (NC's) by sequential deposition of Pt and Ru on a periodically rumpled graphene. The periodic variation of the adsorption energy across the graphene sheet directs the assembly of NC

Ulm, Universität

45

CO Oxidation at the Au-Cu Interface of Bimetallic Nanoclusters Supported on CeO2(111)  

E-Print Network [OSTI]

of tunable interfaces, metal and oxide,9,12,15-18 metal and carbide,19 and oxide and oxide,2 of the structure of CeO2(111)-supported Au- based bimetallic nanoclusters (NCs) show that a strong support-metal Materials, and Catalysis The critical role of the interface between a supporting oxide and supported metal

Henkelman, Graeme

46

Ternary PtSnRhSnO2 nanoclusters: synthesis and electroactivity for ethanol oxidation fuel cell reaction  

E-Print Network [OSTI]

Ternary PtSnRh­SnO2 nanoclusters: synthesis and electroactivity for ethanol oxidation fuel cell. Ethanol becomes an attractive fuel in the fuel cell reactions compared with methanol and hydrogen, because­4 A major impediment to the commercialization of ethanol fuel cell stacks is the difficulty in designing

Frenkel, Anatoly

47

Photonic crystal light emitting diode based on Er and Si nanoclusters co-doped slot waveguide  

SciTech Connect (OSTI)

We report on the design, fabrication, and electro-optical characterization of a light emitting device operating at 1.54??m, whose active layer consists of silicon oxide containing Er-doped Si nanoclusters. A photonic crystal (PhC) is fabricated on the top-electrode to enhance the light extraction in the vertical direction, and thus the external efficiency of the device. This occurs if a photonic mode of the PhC slab is resonant with the Er emission energy, as confirmed by theoretical calculations and experimental analyses. We measure an increase of the extraction efficiency by a factor of 3 with a high directionality of light emission in a narrow vertical cone. External quantum efficiency and power efficiency are among the highest reported for this kind of material. These results are important for the realization of CMOS-compatible efficient light emitters at telecom wavelengths.

Lo Savio, R.; Galli, M.; Liscidini, M.; Andreani, L. C. [Dipartimento di Fisica, Universit di Pavia, Via Bassi 6, 27100 Pavia (Italy); Franz, G.; Iacona, F.; Miritello, M. [MATIS-IMM CNR and Dipartimento di Fisica e Astronomia, Universit di Catania, via S. Sofia 64, 95123 Catania (Italy); Irrera, A. [CNR-IPCF, Viale Ferdinando Stagno d'Alcontres 37, 98158 Messina (Italy); Sanfilippo, D.; Piana, A. [ST Microelectronics, Stradale Primosole 50, 95121 Catania (Italy); Priolo, F. [MATIS-IMM CNR and Dipartimento di Fisica e Astronomia, Universit di Catania, via S. Sofia 64, 95123 Catania (Italy); Scuola Superiore di Catania, Universit di Catania, Via Valdisavoia 9, 95123 Catania (Italy)

2014-03-24T23:59:59.000Z

48

Exchange bias in Core-Shell Iron-Iron Oxide Nanoclusters  

SciTech Connect (OSTI)

An exchange bias study has been performed on core-shell iron-iron oxide (Fe-Fe3O4) nanoclusters (NCs) of size 11 nm and 14 nm carrying a different core to shell ratio. NCs show complicated behaviors due to competition between interfacial exchange and Zeeman energy in the presence of magnetic field during cooling. These behaviors are accompanied by the evolution of size- dependent cluster structures in the ferromagnetic-core/ferri- or antiferro-magnetic-shell. Smaller clusters have larger coercive field, exchange bias field, and vertical magnetization shift due to the greater contribution from frozen spins of shell/interfaces. These smaller clusters thus also show more dramatic changes with the training effect. Both sizes of clusters display an additional anomaly of the upper part of the hysteresis loop at 10 K under low cooling field (0.1 kOe). This anomaly decreases with number of loop cycles with same field, and disappear with large cooling field (> 0.1 kOe). It may be caused by the competition between the magnetization reversal and the magnetostatic interactions.

Kaur, Maninder; McCloy, John S.; Qiang, You

2013-04-03T23:59:59.000Z

49

Oxide shell reduction and magnetic property changes in core-shell Fe nanoclusters under ion irradiation  

SciTech Connect (OSTI)

Ion irradiation effects are studied on the Fe-based core-shell nanocluster (NC) films with core as Fe and shell as Fe{sub 3}O{sub 4}/Fe{sub 3}N. These NC films were deposited on Si substrates to thickness of ?0.5 ?m using a NC deposition system. The films were irradiated at room temperature with 5.5?MeV Si{sup 2+} ions to ion fluences of 10{sup 15} and 10{sup 16} ions/cm{sup 2}. It is found that the irradiation induces grain growth, Fe valence reduction in the shell, and crystallization or growth of Fe{sub 3}N. The film retained its Fe-core and its ferromagnetic properties after irradiation. The nature and mechanism of oxide shell reduction and composition dependence after irradiation were studied by synthesizing additional NC films of Fe{sub 3}O{sub 4} and FeO?+?Fe{sub 3}N and irradiating them under the same conditions. The presence of nanocrystalline Fe is found to be a major factor for the oxide shell reduction. The surface morphologies of these films show dramatic changes in the microstructures due to cluster growth and agglomeration as a result of ion irradiation.

Sundararajan, Jennifer A.; Kaur, Maninder; Qiang, You, E-mail: youqiang@uidaho.edu [Department of Physics, University of Idaho, Moscow, Idaho 83844 (United States); Jiang, Weilin [Pacific Northwest National Laboratory, P.O. Box 999, Richland, Washington 99352 (United States); McCloy, John S. [School of Mechanical and Materials Engineering, Washington State University, Pullman, Washington 99164 (United States)

2014-05-07T23:59:59.000Z

50

Synthesis of Nearly Uniform Single-Walled Carbon Nanotubes Using Identical Metal-Containing Molecular Nanoclusters as Catalysts  

E-Print Network [OSTI]

are dark blue and highly soluble in ionizing solvents, such as water, methanol, and ethyl acetate. Th on their helicity, which has a close correlation with their diameters;1-3 the energy gaps of the semi- conducting days. The crystals were filtered, washed with ultrapure water, and dried at room temperature

51

E-Print Network 3.0 - ag nanocluster nucleation Sample Search...  

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

Fdrale de Lausanne Collection: Materials Science ; Physics 24 Diameter-controlled synthesis of single-crystal silicon nanowires Yi Cui, Lincoln J. Lauhon, Mark S. Gudiksen,...

52

CO Oxidation at the Interface of Au Nanoclusters and the Stepped-CeO2(111) Surface  

SciTech Connect (OSTI)

To reveal the richer chemistry of CO oxidation by CeO2 supported Au Nanoclusters NCs)/Nanoparticles, we design a Au12 supported on a stepped-CeO2 model (Au/CeO2-step) and study various kinds of CO oxidation mechanisms at the interface of the Au/CeO2-step: oxygen spillover from the CeO2 to the Au NCs;2 CO oxidation by the O2 bound to the Au-Ce3+ interface;3 and CO oxidation by the Mars-van Krevelen (M-vK) mechanism.4 DFT+U calculations show that lattice oxygen at the CeO2 step edge oxidizes CO bound to Au NCs by the M-vK mechanism. CO2 desorption determines the rate of CO oxidation and the vacancy formation energy (Evac) is a reactivity descriptor for CO oxidation. The maximum Evac that insures spontaneous CO2 production is higher for the Au/CeO2-step than the Au/CeO2-surface suggesting that the CeO2-step is a better supporting material than the CeO2-surface for CO oxidation by the Au/CeO2. Our results also suggest that for CO oxidation by Au NCs supported on nano- or meso-structured CeO2, which is the case of industrial catalysts, the M-vK mechanism accounts for a large portion of the total activity.

Kim H. Y.; Henkelman, G.

2013-01-14T23:59:59.000Z

53

In-situ Spectroscopy of Water Oxidation at Ir Oxide Nanocluster Drivenby Visible TiOCr Charge-Transfer Chromophore in Mesoporous Silica  

SciTech Connect (OSTI)

An all-inorganic photocatalytic unit consisting of a binuclear TiOCr charge-transfer chromophore coupled to an Ir oxide nanocluster has been assembled on the pore surface of mesoporous silica AlMCM-41. In situ FT-Raman and EPR spectroscopy of an aqueous suspension of the resulting IrxOy-TiCr-AlMCM-41 powder reveal the formation of superoxide species when exciting the Ti(IV)OCr(III) --> Ti(III)OCr(IV) metal-to-metal charge-transfer chromophore with visible light. Use of H218O confirms that the superoxide species originates from oxidation of water. Photolysis in the absence of persulfate acceptor leads to accumulation of Ti(III) instead. The results are explained by photocatalytic oxidation of water at Ir oxide nanoclusters followed by trapping of the evolving O2 by transient Ti(III) centers to yield superoxide. Given the flexibility to select donor metals with appropriate redox potential, photocatalytic units consisting of a binuclear charge-transfer chromophore coupled to a water oxidation catalyst shown here constitute a step towards thermodynamically efficient visible light water oxidation units.

Frei, Heinz; Han, Hongxian; Frei, Heinz

2008-06-03T23:59:59.000Z

54

Roles of nanoclusters in shear banding and plastic deformation of bulk metallic glasses  

SciTech Connect (OSTI)

During the course of this research we published 33 papers in various physics/material journals. We select four representing papers in this report and their results are summarized as follows. I. To study shear banding process, it is pertinent to know the intrinsic shear strain rate within a propagating shear band. To this aim, we used nanoindentation technique to probe the mechanical response of a Au49Ag5.5Pd2.3Cu26.9Si16.3 bulk metallic glass in locality and found notable pop-in events associated with shear band emission. Using a free volume model and under the situation when temperature and stress/hardness are fixed result in an equation, which predicts that hardness serration caused by pop-in decreases exponentially with the strain rate. Our data are in good agreement with the prediction. The result also predicts that, when strain rate is higher than a critical strain rate of 1700 s^-1, there will be no hardness serration, thereby no pop-in. In other words, multiple shear bandings will take place and material will flow homogeneously. The critical strain rate of 1700 s^-1 can be treated as the intrinsic strain rate within a shear band. We subsequently carried out a simulation study and showed that, if the imposed strain rate was over , the shear band spacing would become so small that the entire sample would virtually behave like one major shear band. Using the datum strain rate =1700 s^-1 and based on a shear band nucleation model proposed by us, the size of a shear-band nucleus in Au-BMG was estimated to be 3 ???? 10^6 atoms, or a sphere of ~30 nm in diameter. II. Inspired by the peculiar result published in a Science article ?¢????Super Plastic Bulk Metallic Glasses at Room Temperature?¢???, we synthesized the Zr-based bulk metallic glass with a composition identical to that in the paper (Zr64.13Cu15.75Ni10.12Al10) and, subsequently, tested in compression at the same slow strain rate (~10^-4 s^-1). We found that the dominant deformation mode is always single shear. The stress-strain curve exhibited serrated pattern in the plastic region, which conventionally has been attributed to individual shear band propagation. The scanning electron micrographs taken from the deformed sample surface revealed regularly spaced striations. Analysis indicates that the observed stress-strain serrations are intimately related to the striations on the shear surface, suggesting the serrations were actually caused slip-and-stick shear along the principal shear plane. We further use video camera to conduct in situ compression experiments to unambiguously confirm the one-to-one temporal and spatial correspondence between the intermittent sliding and flow serration. This preferential shear band formation along the principal shear plane is, in fact, a natural consequence of Mode II crack, independent of strain softening or hardening, usually claimed in the literature. III. Flow serration in compression of metallic glasses is caused by the formation and propagation of localized shear bands. These shear bands propagate at an extremely high speed, so high that a load cell and load frame were unable to capture the details of the dynamic event. To subdue this problem, we conducted uniaxial compression on Zr64.13Cu15.75Ni10.12Al10 bulk metallic glass using a high-speed camera to capture the sample image and also high-sensitivity strain gauges attached to the test samples to directly measure the strain. The displacement-time curves obtained from the test and a magnified version of the displacement burst reveals clearly a three-step (acceleration, steady-state, and deceleration) process during shear band propagation. The fastest propagating speed occurring at the steady state is calculated as 8????10^2 ???µm/s. This speed is about 1,000 times faster than the crosshead speed. This explains the gradual disappearance of flow serration at higher strain rates previously reported during compression of

Nieh, T.G.

2012-07-31T23:59:59.000Z

55

Visible Light-Driven Water Oxidation by Ir oxide Clusters Coupledto Single Cr Centers in Mesoporous Silica  

SciTech Connect (OSTI)

Visible light-induced water oxidation has been demonstrated at an Ir oxide nanocluster coupled to a single Cr{sup VI} site on the pore surface of MCM-41 mesoporous silica. The photocatalytic unit was assembled by the reaction of surface Cr=O groups with Ir(acac){sub 3} precursor followed by calcination at 300 C and bond formation monitored by FT-Raman and FT-IR spectroscopy. High-resolution Z-contrast electron micrographs of the calcined material combined with energy-dispersive X-ray spot analysis confirmed the occlusion of Ir oxide nanoparticles inside the mesopores. Oxygen evolution of an aqueous suspension of the Ir{sub x}O{sub y}-CrMCM-41 upon visible light irradiation of the Cr{sup VI}-O ligand-to-metal charge-transfer absorption was monitored mass-spectrometrically. Comparison of the product yields for samples with low Cr content (Cr/Si {le} 0.02) and high Cr content (Cr/Si = 0.05) indicates that only isolated Cr centers are capable of extracting electrons from Ir oxide clusters, while di- or polychromate species are not. Water oxidation at a multielectron-transfer catalyst coupled to a single metal center has not been demonstrated before. The ability to drive water oxidation with a single metal center as electron pump offers opportunities for coupling the oxygen-evolving photocatalytic unit to reducing sites in the nanoporous scaffold.

Nakamura, Ryuhei; Frei, Heinz

2006-07-10T23:59:59.000Z

56

mathematics single cycle  

E-Print Network [OSTI]

47 mathematics education single cycle master's study programme #12;48 single cycle master's study program in Mathematics Education #12;49 single cycle master's study program in Mathematics Education MATHEMATICS EDUCATION The program is in tune with the principles of the Bologna Declaration. · Academic title

?umer, Slobodan

57

Single Top Quark  

SciTech Connect (OSTI)

Fermilab researchers Heidi Schellman and Ann Heinson take a whimsical look at the recent announcement of the discovery of the single top quark, by Fermilab's CDF and DZero experiments.

Heidi Schellman and Ann Heinson

2009-03-12T23:59:59.000Z

58

Single Particle Laser Ablation | EMSL  

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

Single Particle Laser Ablation Single Particle Laser Ablation Leads No leads are available at this time. Effect of Solar Radiation on the Optical Properties and Molecular...

59

Single-exciton nanocrystal laser  

DOE Patents [OSTI]

A laser system employing amplification via a single exciton regime and to optical gain media having single exciton amplification is provided.

Klimov, Victor I. (Los Alamos, NM); Ivanov, Sergei A. (Albuquerque, NM)

2012-01-17T23:59:59.000Z

60

Single rotor turbine engine  

DOE Patents [OSTI]

There has been invented a turbine engine with a single rotor which cools the engine, functions as a radial compressor, pushes air through the engine to the ignition point, and acts as an axial turbine for powering the compressor. The invention engine is designed to use a simple scheme of conventional passage shapes to provide both a radial and axial flow pattern through the single rotor, thereby allowing the radial intake air flow to cool the turbine blades and turbine exhaust gases in an axial flow to be used for energy transfer. In an alternative embodiment, an electric generator is incorporated in the engine to specifically adapt the invention for power generation. Magnets are embedded in the exhaust face of the single rotor proximate to a ring of stationary magnetic cores with windings to provide for the generation of electricity. In this alternative embodiment, the turbine is a radial inflow turbine rather than an axial turbine as used in the first embodiment. Radial inflow passages of conventional design are interleaved with radial compressor passages to allow the intake air to cool the turbine blades.

Platts, David A. (Los Alamos, NM)

2002-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "nanoclusters out-perform single" 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

Single-Column Modeling  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administrationcontroller systemsBi (2)Sharing Smart GridShiftMethodSimwYpes(tm)Single microbeC.J.

62

Single-Walle 4. Single-Walled Carbon Nanotubes  

E-Print Network [OSTI]

applications, carbon nanotube research is ac- tively being pursued in diverse areas including energy storage105 Single-Walle 4. Single-Walled Carbon Nanotubes Sebastien Nanot, Nicholas A. Thompson, Ji Single-walled carbon nanotubes (SWCNTs) are hol- low, long cylinders with extremely large aspect ratios

Kono, Junichiro

63

Mathematics & MMath (Single Honours Degrees)  

E-Print Network [OSTI]

124 Mathematics & Statistics MMath (Single Honours Degrees) Mathematics Applied Mathematics Pure Mathematics Statistics BSc or MA (Single Honours Degrees) Mathematics Statistics BSc (Joint Honours Degrees) Mathematics and one of: Biology Chemistry Computer Science Economics Geography Statistics and one of: Biology

Brierley, Andrew

64

Characterization of fundamental catalytic properties of MoS2/WS2 nanotubes and nanoclusters for desulfurization catalysis - a surface temperature study  

SciTech Connect (OSTI)

The prior project consisted of two main project lines. First, characterization of novel nanomaterials for hydrodesulfurization (HDS) applications. Second, studying more traditional model systems for HDS such as vapor-deposited silica-supported Mo and MoSx clusters. In the first subproject, we studied WS2 and MoS2 fullerene-like nanoparticles as well as WS2 nanotubes. Thiophene (C4H4S) was used as the probe molecule. Interestingly, metallic and sulfur-like adsorption sites could be identified on the silica-supported fullerene-particles system. Similar structures are seen for the traditional system (vapor-deposited clusters). Thus, this may be a kinetics fingerprint feature of modern HDS model systems. In addition, kinetics data allowed characterization of the different adsorption sites for thiophene on and inside WS2 nanotube bundles. The latter is a unique feature of nanotubes that has not been reported before for any inorganic nanotube system; however, examples are known for carbon nanotubes, including prior work of the PI. Although HDS has been studied for decades, utilizing nanotubes as nanosized HDS reactors has never been tried before, as far as we know. This is of interest from a fundamental perspective. Unfortunately, the HDS activity of the nanocatalysts at ultra-high vacuum (UHV) conditions was close to the detection limit of our techniques. Therefore, we propose to run experiments at ambient pressure on related nanopowder samples as part of the renewal application utilizing a now-available GC (gas chromatograph) setup. In addition, Ni and Co doped nanocatalyts are proposed for study. These dopants will boost the catalytic activity. In the second subproject of the prior grant, we studied HDS-related chemistry on more traditional supported cluster catalysts. Mo clusters supported by physical vapor deposition (PVD) on silica have been characterized. Two reaction pathways are evident when adsorbing thiophene on Mo and MoSx clusters: molecular adsorption and dissociation. PVD Mo clusters turned out to be very reactive toward thiophene bond activation. Sulfur and carbon residuals form, which poison the catalyst and sulfide the Mo clusters. Sulfided silica-supported MoSx samples are not reactive toward thiophene bond activation. In addition to S and C deposits, H2, H2S, and small organic molecules were detected in the gas phase. Catalyst reactivation procedures, including O2 and atomic hydrogen treatments, have been tested. Cluster size effects have been seen: thiophene adsorbs molecularly with larger binding energies on smaller clusters. However, larger clusters have smaller activation energy for C4H4S bond activation than smaller clusters. The latter is consistent with early catalysis studies. Kinetics and dynamics parameters have been determined quantitatively. We spent a significant amount of time on upgrades of our equipment. A 2nd-hand refurbished X-ray photoelectron spectrometer (XPS) has been integrated into the existing molecular beam scattering system and is already operational (supported by the DoE supplemental grant available in October 2009). We also added a time of flight (TOF) system to the beam scattering apparatus and improved on the accessible impact energy range (new nozzle heater and gas mixing manifold) for the beam scattering experiments. In addition, a GC-based powder atmospheric flow reactor for studies on powder samples is now operational. Furthermore, a 2nd UHV kinetics system has been upgraded as well. In summary, mostly single crystal systems have so far been considered in basic science studies about HDS. Industrial catalysts, however, can be better approximated with the supported cluster systems that we studied in this project. Furthermore, an entirely new class of HDS systems, namely fullerene-like particles and inorganic nanotubes, has been included. Studying new materials and systems has the potential to impact science and technology. The systems investigated are closely related to energy and environmental-related surface science/catalysis. This prior project, conducted at NDSU by a sma

U. Burghaus

2012-07-05T23:59:59.000Z

65

EMSL - Single Particle Laser Ablation  

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

single-particle-laser-ablation en Effect of Solar Radiation on the Optical Properties and Molecular Composition of Laboratory Proxies of Atmospheric Brown Carbon http:...

66

Heralded single photon absorption by a single atom  

E-Print Network [OSTI]

The emission and absorption of single photons by single atomic particles is a fundamental limit of matter-light interaction, manifesting its quantum mechanical nature. At the same time, as a controlled process it is a key enabling tool for quantum technologies, such as quantum optical information technology [1, 2] and quantum metrology [3, 4, 5, 6]. Controlling both emission and absorption will allow implementing quantum networking scenarios [1, 7, 8, 9], where photonic communication of quantum information is interfaced with its local processing in atoms. In studies of single-photon emission, recent progress includes control of the shape, bandwidth, frequency, and polarization of single-photon sources [10, 11, 12, 13, 14, 15, 16, 17], and the demonstration of atom-photon entanglement [18, 19, 20]. Controlled absorption of a single photon by a single atom is much less investigated; proposals exist but only very preliminary steps have been taken experimentally such as detecting the attenuation and phase shift of a weak laser beam by a single atom [21, 22], and designing an optical system that covers a large fraction of the full solid angle [23, 24, 25]. Here we report the interaction of single heralded photons with a single trapped atom. We find strong correlations of the detection of a heralding photon with a change in the quantum state of the atom marking absorption of the quantum-correlated heralded photon. In coupling a single absorber with a quantum light source, our experiment demonstrates previously unexplored matter-light interaction, while opening up new avenues towards photon-atom entanglement conversion in quantum technology.

Nicolas Piro; Felix Rohde; Carsten Schuck; Marc Almendros; Jan Huwer; Joyee Ghosh; Albrecht Haase; Markus Hennrich; Francois Dubin; Jrgen Eschner

2010-04-23T23:59:59.000Z

67

Single axioms for Boolean algebra.  

SciTech Connect (OSTI)

Explicit single axioms are presented for Boolean algebra in terms of (1) the Sheffer stroke; (2) disjunction and negation; (3) disjunction, conjunction, and negation; and (4) disjunction, conjunction, negation, 0, and 1. It was previously known that single axioms exist for these systems, but the procedures to generate them are exponential, producing huge equations. Automated deduction techniques were applied to find axioms of lengths 105, 131, 111, and 127, respectively, each with six variables.

McCune, W.

2000-06-30T23:59:59.000Z

68

Single atom impurity in a single molecular transistor  

SciTech Connect (OSTI)

The influence of an impurity atom on the electrostatic behaviour of a Single Molecular Transistor was investigated through Ab-initio calculations in a double-gated geometry. The charge stability diagram carries unique signature of the position of the impurity atom in such devices which together with the charging energy of the molecule could be utilised as an electronic fingerprint for the detection of such impurity states in a nano-electronic device. The two gated geometry allows additional control over the electrostatics as can be seen from the total energy surfaces (for a specific charge state), which is sensitive to the positions of the impurity. These devices which are operational at room temperature can provide significant advantages over the conventional silicon based single dopant devices functional at low temperature. The present approach could be a very powerful tool for the detection and control of individual impurity atoms in a single molecular device and for applications in future molecular electronics.

Ray, S. J., E-mail: ray.sjr@gmail.com [Institute of Materials Science, Technical University of Darmstadt, Alarich-Weiss Str. 2, 64287 Darmstadt (Germany)

2014-10-21T23:59:59.000Z

69

INVESTIGATION Coding Gene Single Nucleotide Polymorphism  

E-Print Network [OSTI]

INVESTIGATION Coding Gene Single Nucleotide Polymorphism Mapping and Quantitative Trait Loci QTL detection single nucleotide polymorphisms (SNP) reproduction Salvelinus fontinalis Linkages maps such as microsatellites and single nucleotide polymorphisms (SNPs). Also, compared with previ- ous methods based

Bernatchez, Louis

70

Single particle-induced latchup  

SciTech Connect (OSTI)

This paper presents an up-to-date overview of the single-event latchup (SEL) hard failure mode encountered in electronic device applications involving heavy ion environment. This phenomenon is specific to CMOS technology. Single-event latchup is discussed after a short description of the effects induced by the interaction of a heavy ion with silicon. Understanding these effects is necessary to understand the different failures. This paper includes a description of the latchup phenomenon and the different triggering modes, reviews of models and hardening solutions, and finally presents new developments in simulation approaches.

Bruguier, G.; Palau, J.M. [Univ. Montpellier II (France). Centre d`Electronique de Montpellier] [Univ. Montpellier II (France). Centre d`Electronique de Montpellier

1996-04-01T23:59:59.000Z

71

Single-cycle nonlinear optics  

E-Print Network [OSTI]

g l e - C y c l e Nonlinear Optics E. G o u l i e l m a k iSingle-Cycle Nonlinear Optics E. Goulielmakis *, M.D-85748 Garching. Center for X-Ray Optics, Lawrence Berkeley

Goulielmakis, E.; Max-Planck-Institut fur Quantenoptik

2008-01-01T23:59:59.000Z

72

Country Scotland Type Single malt  

E-Print Network [OSTI]

Country Scotland Type Single malt Distillery Aberfeldy Region Highlands Age 12 years ABV 40% Cask, the perfume characteristics become more spicy, with a bitter hint of Seville oranges in a decidedly dry finish. Drying citrus/oak with a gentle spiciness, held in a warm embrace of cigar smoke, and a little vanilla

Izzard, Rob

73

Country Scotland Type Single malt  

E-Print Network [OSTI]

Country Scotland Type Single malt Distillery Jura Region Island Name Prophecy ABV 46 Cask French airport Notes Limited annual release: 10,000 bottles only. Nose Some peat, aniseed, oily, dry, pungent, dried hay, and anise round things out. Palate Smoky and dry, a muscular, powerful Jura with notes

Izzard, Rob

74

Single element laser beam shaper  

DOE Patents [OSTI]

A single lens laser beam shaper for converting laser beams from any spatial profile to a flat-top or uniform spatial profile. The laser beam shaper includes a lens having two aspheric surfaces. The beam shaper significantly simplifies the overall structure in comparison with conventional 2-element systems and therefore provides great ease in alignment and reduction of cost.

Zhang, Shukui (Yorktown, VA); Michelle D. Shinn (Newport News, VA)

2005-09-13T23:59:59.000Z

75

Polar nanoregions and dielectric properties in high-strain lead-free 0.93(Bi{sub 1/2}Na{sub 1/2})TiO{sub 3}-0.07BaTiO{sub 3} piezoelectric single crystals  

SciTech Connect (OSTI)

A structural coexistence of rhombohedral (R) and tetragonal (T) phases has been revealed in the (001){sub c}-cut lead-free 0.93(Bi{sub 1/2}Na{sub 1/2})TiO{sub 3}0.07BaTiO{sub 3} (BNB7T) piezoelectric crystals, which grown by the self-flux method, in the lower temperatures by high-resolution synchrotron X-ray diffraction, reciprocal space mapping, and transmission electron microscopy. The dielectric permittivity exhibits a thermal hysteresis in the region of 120260?C, implying a first-order-like phase transition from R+T to T. The real part (??) of dielectric permittivity begins to deviates from the Curie-Weiss equation, ???=?C/(T ? T{sub o}), from the Burns temperature T{sub B}?=?460?C, below which the polar nanoregions (or nanoclusters) develop and attenuate dielectric responses. The polar nanoregions of 510?nm were revealed by high-resolution transmission electron microscope. The normal piezoelectric coefficient d{sub 33} exhibits a rapid increase at E?=?1520?kV/cm and reaches a maximum of d{sub 33} ?450 pC/N. The high piezoelectric response and E-field induced strain in BNB7T single crystals can be attributed to structural phase transitions under an E-field application.

Chen, Cheng-Sao, E-mail: rickchen@cc.hwh.edu.tw [Department of Mechanical Engineering, Hwa-Hsia Institute of Technology, New Taipei City 23567, Taiwan (China); Chen, Pin-Yi [Department of Mechanical Engineering, Ming-Chi University of Technology, New Taipei City 24301, Taiwan (China); Tu, Chi-Shun [Graduate Institute of Applied Science and Engineering, Fu Jen Catholic University, New Taipei City 24205, Taiwan (China)

2014-01-07T23:59:59.000Z

76

Single lens laser beam shaper  

DOE Patents [OSTI]

A single lens bullet-shaped laser beam shaper capable of redistributing an arbitrary beam profile into any desired output profile comprising a unitary lens comprising: a convex front input surface defining a focal point and a flat output portion at the focal point; and b) a cylindrical core portion having a flat input surface coincident with the flat output portion of the first input portion at the focal point and a convex rear output surface remote from the convex front input surface.

Liu, Chuyu (Newport News, VA); Zhang, Shukui (Yorktown, VA)

2011-10-04T23:59:59.000Z

77

SINGLE HEATER TEST FINAL REPORT  

SciTech Connect (OSTI)

The Single Heater Test is the first of the in-situ thermal tests conducted by the U.S. Department of Energy as part of its program of characterizing Yucca Mountain in Nevada as the potential site for a proposed deep geologic repository for the disposal of spent nuclear fuel and high-level nuclear waste. The Site Characterization Plan (DOE 1988) contained an extensive plan of in-situ thermal tests aimed at understanding specific aspects of the response of the local rock-mass around the potential repository to the heat from the radioactive decay of the emplaced waste. With the refocusing of the Site Characterization Plan by the ''Civilian Radioactive Waste Management Program Plan'' (DOE 1994), a consolidated thermal testing program emerged by 1995 as documented in the reports ''In-Situ Thermal Testing Program Strategy'' (DOE 1995) and ''Updated In-Situ Thermal Testing Program Strategy'' (CRWMS M&O 1997a). The concept of the Single Heater Test took shape in the summer of 1995 and detailed planning and design of the test started with the beginning fiscal year 1996. The overall objective of the Single Heater Test was to gain an understanding of the coupled thermal, mechanical, hydrological, and chemical processes that are anticipated to occur in the local rock-mass in the potential repository as a result of heat from radioactive decay of the emplaced waste. This included making a priori predictions of the test results using existing models and subsequently refining or modifying the models, on the basis of comparative and interpretive analyses of the measurements and predictions. A second, no less important, objective was to try out, in a full-scale field setting, the various instruments and equipment to be employed in the future on a much larger, more complex, thermal test of longer duration, such as the Drift Scale Test. This ''shake down'' or trial aspect of the Single Heater Test applied not just to the hardware, but also to the teamwork and cooperation between multiple organizations performing their part in the test.

J.B. Cho

1999-05-01T23:59:59.000Z

78

Single electron states in polyethylene  

SciTech Connect (OSTI)

We report computer simulations of an excess electron in various structural motifs of polyethylene at room temperature, including lamellar and interfacial regions between amorphous and lamellae, as well as nanometre-sized voids. Electronic properties such as density of states, mobility edges, and mobilities are computed on the different phases using a block Lanczos algorithm. Our results suggest that the electronic density of states for a heterogeneous material can be approximated by summing the single phase density of states weighted by their corresponding volume fractions. Additionally, a quantitative connection between the localized states of the excess electron and the local atomic structure is presented.

Wang, Y. [State Key Lab. of Electrical Insulation and Power Equipment, Xi'an Jiaotong University, No. 28 Xianning West Road, Xi'an 710049, Shaanxi (China) [State Key Lab. of Electrical Insulation and Power Equipment, Xi'an Jiaotong University, No. 28 Xianning West Road, Xi'an 710049, Shaanxi (China); School of Physics and Complex Adaptive Systems Laboratory, University College Dublin, Belfield, Dublin 4 (Ireland); MacKernan, D. [School of Physics and Complex Adaptive Systems Laboratory, University College Dublin, Belfield, Dublin 4 (Ireland)] [School of Physics and Complex Adaptive Systems Laboratory, University College Dublin, Belfield, Dublin 4 (Ireland); Cubero, D., E-mail: dcubero@us.es, E-mail: n.quirke@imperial.ac.uk [State Key Lab. of Electrical Insulation and Power Equipment, Xi'an Jiaotong University, No. 28 Xianning West Road, Xi'an 710049, Shaanxi (China); Departmento de Fsica Aplicada I, Universidad de Sevilla, Calle Virgen de Africa 7, 41011 Seville (Spain); Coker, D. F. [School of Physics and Complex Adaptive Systems Laboratory, University College Dublin, Belfield, Dublin 4 (Ireland) [School of Physics and Complex Adaptive Systems Laboratory, University College Dublin, Belfield, Dublin 4 (Ireland); Department of Chemistry, Boston University, 590 Commonwealth Avenue, Boston, Massachusetts 02215 (United States); Quirke, N., E-mail: dcubero@us.es, E-mail: n.quirke@imperial.ac.uk [State Key Lab. of Electrical Insulation and Power Equipment, Xi'an Jiaotong University, No. 28 Xianning West Road, Xi'an 710049, Shaanxi (China); Department of Chemistry, Imperial College, London SW7 2AY (United Kingdom)

2014-04-21T23:59:59.000Z

79

Better Randomness with Single Photons  

E-Print Network [OSTI]

Randomness is one of the most important resources in modern information science, since encryption founds upon the trust in random numbers. Since it is impossible to prove if an existing random bit string is truly random, it is relevant that they be generated in a trust worthy process. This requires specialized hardware for random numbers, for example a die or a tossed coin. But when all input parameters are known, their outcome might still be predicted. A quantum mechanical superposition allows for provably true random bit generation. In the past decade many quantum random number generators (QRNGs) were realized. A photonic implementation is described as a photon which impinges on a beam splitter, but such a protocol is rarely realized with non-classical light or anti-bunched single photons. Instead, laser sources or light emitting diodes are used. Here we analyze the difference in generating a true random bit string with a laser and with anti-bunched light. We show that a single photon source provides more r...

Oberreiter, Lukas

2014-01-01T23:59:59.000Z

80

Coherent control of single photon states  

E-Print Network [OSTI]

We define a class of multi-mode single photon states suitable for quantum information applications. We show how standard amplitude modulation techniques may be used to control the pulse shape of single photon states.

G. J. Milburn

2007-02-12T23:59:59.000Z

Note: This page contains sample records for the topic "nanoclusters out-perform single" 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

Physics & Astronomy BSc (Single Honours Degrees)  

E-Print Network [OSTI]

138 Physics & Astronomy BSc (Single Honours Degrees) Astrophysics Physics MPhys (Single Honours Degrees) Astrophysics Physics Theoretical Physics BSc (Joint Honours Degrees) Physics and one of: Computer Science Logic and Philosophy of Science Mathematics MPhys (Joint Honours Degree) Theoretical Physics

Brierley, Andrew

82

Photon tunnelling microscopy of polyethylene single crystals  

E-Print Network [OSTI]

Photon tunnelling microscopy of polyethylene single crystals Mohan Srinivasarao* and Richard S:photon tunnellingmicroscopy;single crystals; polyethylene) INTRODUCTION The study of morphology of polymers is an area

Srinivasarao, Mohan

83

PHOTOCATALYTIC AND PHOTOELECTROCHEMICAL HYDROGEN PRODUCTION ON STRONTIUM TITANATE SINGLE CRYSTALS  

E-Print Network [OSTI]

HYDROGEN PRODUCTION ON STRONTIUM TITANATE SINGLE CRYSTALS F.HYDROGEN PRODUCTION ON STRONTIUM TITANATE SINGLE CRYSTALS

Wagner, F.T.

2012-01-01T23:59:59.000Z

84

Nanoscale Calorimetry of Isolated Polyethylene Single Crystals  

E-Print Network [OSTI]

Nanoscale Calorimetry of Isolated Polyethylene Single Crystals A. T. KWAN, M. YU. EFREMOV, E. A-film differential scanning calorimetry to investigate the melt- ing of isolated polyethylene single crystals of lamellar single crystals of polyethylene (PE). We obtain thickness, diffraction, and calorimetry data

Allen, Leslie H.

85

Single-Frontier Bidirectional Search Ariel Felner  

E-Print Network [OSTI]

Single-Frontier Bidirectional Search Ariel Felner Information Systems Engineering Deutsche Telekom in practice often fall far short of expectations. We introduce a new bidirectional search algorithm, Single-Frontier Bidirectional Search (SF- BDS). Unlike traditional BDS which keeps two frontiers, SF- BDS uses a single frontier

Schaeffer, Jonathan

86

Single-cycle nonlinear optics  

SciTech Connect (OSTI)

Nonlinear optics plays a central role in the advancement of optical science and laser-based technologies. We report on the confinement of the nonlinear interaction of light with matter to a single wave cycle and demonstrate its utility for time-resolved and strong-field science. The electric field of 3.3-femtosecond, 0.72-micron laser pulses with a controlled and measured waveform ionizes atoms near the crests of the central wave cycle, with ionization being virtually switched off outside this interval. Isolated sub-100-attosecond pulses of extreme ultraviolet light (photon energy {approx} 80 electron volts), containing {approx} 0.5 nanojoule of energy, emerge from the interaction with a conversion efficiency of {approx} 10{sup -6}. These tools enable the study of the precision control of electron motion with light fields and electron-electron interactions with a resolution approaching the atomic unit of time ({approx} 24 attoseconds).

Max-Planck-Institut fur Quantenoptik; Goulielmakis, E.; Schultze, M.; Hofstetter, M.; Yakovlev, V. S.; Gagnon, J.; Uiberacker, M.; Aquila, A. L.; gullikson, E. M.; attwood, D. T.; Kienberger, R.; Krausz, F.; Kleineberg, U.

2008-11-05T23:59:59.000Z

87

Engineered Quantum Dot Single Photon Sources  

E-Print Network [OSTI]

Fast, high efficiency, and low error single photon sources are required for implementation of a number of quantum information processing applications. The fastest triggered single photon sources to date have been demonstrated using epitaxially grown semiconductor quantum dots (QDs), which can be conveniently integrated with optical microcavities. Recent advances in QD technology, including demonstrations of high temperature and telecommunications wavelength single photon emission, have made QD single photon sources more practical. Here we discuss the applications of single photon sources and their various requirements, before reviewing the progress made on a quantum dot platform in meeting these requirements.

Sonia Buckley; Kelley Rivoire; Jelena Vuckovic

2012-10-03T23:59:59.000Z

88

Supporting Information to: Single-Molecule Electrocatalysis by Single-Walled Carbon Nanotubes  

E-Print Network [OSTI]

S1 Supporting Information to: Single-Molecule Electrocatalysis by Single-Walled Carbon Nanotubes. Experimental Methods I.1. Purification of SWNTs. The single-walled carbon nanotubes were purchased from Carbon Nanotechnologies Incorporated (Purified HiPCO single-walled carbon nanotubes). These SWNTs have an average diameter

Chen, Peng

89

Single-Chain Antibody Library  

DOE Data Explorer [Office of Scientific and Technical Information (OSTI)]

Researchers at Pacific Northwest National Laboratory (PNNL) have constructed a nonimmune library consisting of 109 human antibody scFv fragments, which have been cloned and expressed on the surface of yeast. Nanomolar-affinity scFvs are routinely obtained by magnetic bead screening and flow cytometric sorting. The yeast library can be amplified 1010 fold without measurable loss of clonal diversity. This allows for indefinite expansion of the library. All scFv clones can be assessed directly on the yeast cell surface by immunofluorescent labeling and flow cytometry, obviating separate subcloning, expression, and purification steps. The ability to use multiplex library screening demonstrates the utility of this approach for high-throughput antibody isolation for proteomic applications. The yeast library may be used for research projects or teaching performed for U.S. Government purposes only. If you would like to request an aliquot of the single-chain antibody library for your research, please print and fill out the Materials Transfer Agreement (MTA) [PDF, 20K]. The website provides the contact information for mailing the MTA. [copied from http://www.sysbio.org/dataresources/singlechain.stm

Baird, Cheryl

90

Single Atoms on an Optical Nanofiber  

E-Print Network [OSTI]

We show that single-atoms can be trapped on the surface of a subwavelength-diameter silica-fiber, an optical nanofiber, without any external field, and that single photons spontaneously emitted from the atoms can be readily detected through the single guided-mode of the nanofiber. A key point of the work is our finding that atom trapping sites are created on the nanofiber surface by irradiating the atom cloud around the nanofiber with a violet laser radiation.

Nayak, K P

2007-01-01T23:59:59.000Z

91

Single Atoms on an Optical Nanofiber  

E-Print Network [OSTI]

We show that single-atoms can be trapped on the surface of a subwavelength-diameter silica-fiber, an optical nanofiber, without any external field, and that single photons spontaneously emitted from the atoms can be readily detected through the single guided-mode of the nanofiber. A key point of the work is our finding that atom trapping sites are created on the nanofiber surface by irradiating the atom cloud around the nanofiber with a violet laser radiation.

K. P. Nayak; K. Hakuta

2007-09-18T23:59:59.000Z

92

High Throughput Single Molecule Investigation of Transcription  

E-Print Network [OSTI]

Single Molecule Protein Folding in a Coaxial Mixer. Biophys.Kinetic Studies of Protein Folding. Anal. Chem. 76, 7169-Molecule Measurement of Protein Folding Kinetics . Science

Kim, Soohong

2012-01-01T23:59:59.000Z

93

Electron transport through single carbon nanotubes  

E-Print Network [OSTI]

through single carbon nanotubes G. Chai Apollo Technologies,aligned multi-wall carbon nanotubes (CNT). Embedding of CNTsuse of fiber coated carbon nanotubes makes the handling of

Chai, G

2008-01-01T23:59:59.000Z

94

Electron transport through single carbon nanotubes  

E-Print Network [OSTI]

transport through single carbon nanotubes G. Chai Apolloaligned multi-wall carbon nanotubes (CNT). Embedding of CNTsuse of fiber coated carbon nanotubes makes the handling of

Chai, G

2008-01-01T23:59:59.000Z

95

High Throughput Single Molecule Investigation of Transcription  

E-Print Network [OSTI]

Squires, T. & Quake, S. Microfluidics: Fluid physics at themerged two techniques: microfluidics and single- moleculeassay equipped with microfluidics. Chapter three describes

Kim, Soohong

2012-01-01T23:59:59.000Z

96

Microfluidics for investigating single-cell biodynamics.  

E-Print Network [OSTI]

??Progress in synthetic biology requires the development of novel techniques for investigating long-term dynamics in single cells. Here, we demonstrate the utility of microfluidics for (more)

Cookson, Scott Warren

2008-01-01T23:59:59.000Z

97

Computer Science BSc (Single Honours Degree)  

E-Print Network [OSTI]

72 Computer Science BSc (Single Honours Degree) Computer Science BSc (Joint Honours Degrees) Computer Science and one of: Economics Logic and Philosophy of Science Management Management Science MSci (Single Honours Degree) Computer Science Entry Requirements (see also pages 152-189) The likely grades

Brierley, Andrew

98

Petar Ljusev SIngle Conversion stage AMplifier  

E-Print Network [OSTI]

. The proposed SICAM solution strives for direct energy conversion from the mains to the audio outputPetar Ljusev SIngle Conversion stage AMplifier - SICAM PhD thesis, December 2005 #12;#12;To Elena of the project "SICAM - SIngle Conversion stage AMplifier", funded by the Danish Energy Authority under the EFP

99

Budget Adjustment Single Sided Budget Adjustment  

E-Print Network [OSTI]

Budget Adjustment & Single Sided Budget Adjustment WELCOME! #12;Accessing Kuali Campus://busfin.colostate.edu #12;What will be covered today? When should I use a Budget Adjustment (BA) or Single Sided Budget Error correction Onesided vs. singlesided entries #12;When to use a Budget Adjustment How do I know

Stephens, Graeme L.

100

Ames Lab 101: Single Crystal Growth  

ScienceCinema (OSTI)

Ames Laboratory scientist Deborah Schlagel talks about the Lab's research in growing single crystals of various metals and alloys. The single crystal samples are vital to researchers' understanding of the characteristics of a materials and what gives these materials their particular properties.

Schlagel, Deborah

2014-06-04T23:59:59.000Z

Note: This page contains sample records for the topic "nanoclusters out-perform single" 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

Susanta Kumar Sarkar Single Molecule Biophysics Laboratory  

E-Print Network [OSTI]

Susanta Kumar Sarkar Single Molecule Biophysics Laboratory Department of Physics 1523 Illinois. 1994 ­ 1995 National Scholarship. Government of India. PUBLICATIONS 1. Susanta K. Sarkar, Ambika Bumb/711702 (2012). 2. Susanta K. Sarkar, Ambika Bumb, Maria Mills, and Keir C. Neuman. Single-Molecule Fluorescence

102

Multi-Item Single-Vendor-Single-Buyer Problem with Consideration of Transportation Quantity Discount  

E-Print Network [OSTI]

This paper deals with the problem of shipping multiple commodities from a single vendor to a single buyer. Each commodity is assumed to be constantly consumed at the buyer, and periodically replenished from the vendor. ...

Wang, Ye-Xin

103

Spin effects in single-electron transistors  

E-Print Network [OSTI]

Basic electron transport phenomena observed in single-electron transistors (SETs) are introduced, such as Coulomb-blockade diamonds, inelastic cotunneling thresholds, the spin-1/2 Kondo effect, and Fano interference. With ...

Granger, Ghislain

2005-01-01T23:59:59.000Z

104

Single Amplifies Whole Genome Shotgun- Applications  

SciTech Connect (OSTI)

Eric Pelletier of Genoscope discusses new sequencing technology developments to study a single cell at a large scale on June 4, 2010 at the "Sequencing, Finishing, Analysis in the Future" meeting in Santa Fe, NM

Pelletier, Eric [Genoscope

2010-06-04T23:59:59.000Z

105

Counterintuitive temporal shape of single photons  

E-Print Network [OSTI]

We prepare heralded single photons from a photon pair source based on non-degenerate four-wave mixing in a cold atomic ensemble via a cascade decay scheme. Their statistics shows strong antibunching with g(2)(0) < 0.03, indicating a near single photon character. In an optical homodyne experiment, we directly measure the temporal envelope of these photons and find, depending on the heralding scheme, an exponentially decaying or rising profile. The rising envelope will be useful for efficient interaction between single photons and microscopic systems like single atoms and molecules. At the same time, their observation illustrates the breakdown of a realistic interpretation of the heralding process in terms of defining an initial condition of a physical system.

Gurpreet Kaur Gulati; Bharath Srivathsan; Brenda Chng; Alessandro Cer; Dzmitry Matsukevich; Christian Kurtsiefer

2014-02-24T23:59:59.000Z

106

Control of single spin in Markovian environment  

E-Print Network [OSTI]

In this article we study the control of single spin in Markovian environment. Given an initial state, we compute all the possible states to which the spin can be driven at arbitrary time, under the assumption that fast ...

Yuan, Haidong

107

Single mode pulsed dye laser oscillator  

DOE Patents [OSTI]

A single mode pulsed dye laser oscillator is disclosed. The dye laser oscillator provides for improved power efficiency by reducing the physical dimensions of the overall laser cavity, which improves frequency selection capability.

Hackel, Richard P. (Livermore, CA)

1992-01-01T23:59:59.000Z

108

Single mode pulsed dye laser oscillator  

DOE Patents [OSTI]

A single mode pulsed dye laser oscillator is disclosed. The dye laser oscillator provides for improved power efficiency by reducing the physical dimensions of the overall laser cavity, which improves frequency selection capability. 6 figs.

Hackel, R.P.

1992-11-24T23:59:59.000Z

109

Phenomenology of single and double diffraction dissociation  

E-Print Network [OSTI]

Predictions of the gap-probability renormalization model for single and double diffraction dissociation cross sections in proton-proton collisions at the LHC are presented and compared with recent CMS measurements.

Konstantin Goulianos

2013-10-21T23:59:59.000Z

110

Peoples Gas Single Family Direct Install (Illinois)  

Broader source: Energy.gov [DOE]

Owners of single-family homes, condos, townhomes and two-flats may be eligible for a free installation of new programmable thermostats, pipe insulation, showerheads, and faucet aerators through...

111

Magnetically multiplexed heating of single domain nanoparticles  

E-Print Network [OSTI]

Selective hysteretic heating of multiple collocated types of single domain magnetic nanoparticles (SDMNPs) by alternating magnetic fields (AMFs) may offer a useful tool for biomedical applications. The possibility of ...

Romero, G.

112

38 Single drum dance by Quluatanguaq Jeremiassen  

E-Print Network [OSTI]

last updated on Monday, 4 April 2011 Accession Form for Individual Recordings: Collection / Collector Name Stephen Leonard Tape No. / Track / Item No. 38 Length of track 1 minute Title of track Single drum dance by Quluatanguaq Jeremiassen...

Leonard, Stephen Pax

113

Single Stream Recycling Say Goodbye to Sorting  

E-Print Network [OSTI]

Single Stream Recycling Say Goodbye to Sorting Paper Please email recycle@umich.edu for more Containers Cardboard Please flatten all cardboard before placing into bin! Visit us at www.recycle

Awtar, Shorya

114

Asymmetric Architecture for Heralded Single Photon Sources  

E-Print Network [OSTI]

Single photon source represent a fundamental building block for optical implementations of quantum information tasks ranging from basic tests of quantum physics to quantum communication and high-resolution quantum measurement. In this paper we investigate the performance of a multiplexed system based on asymmetric configuration of multiple heralded single photon sources. {To compare the effectiveness of different designs we introduce a single-photon source performance index that is based on the value of single photon probability required to achieve a guaranteed signal to noise ratio.} The performance and scalability comparison with both currently existing multiple-source architectures and faint laser configurations reveals an advantage the proposed scheme offers in realistic scenarios. This analysis also provides insights on the potential of using such architectures for integrated implementation.

Luca Mazzarella; Francesco Ticozzi; Alexander V. Sergienko; Giuseppe Vallone; Paolo Villoresi

2013-02-15T23:59:59.000Z

115

Single Ion Implantation and Deterministic Doping  

SciTech Connect (OSTI)

The presence of single atoms, e.g. dopant atoms, in sub-100 nm scale electronic devices can affect the device characteristics, such as the threshold voltage of transistors, or the sub-threshold currents. Fluctuations of the number of dopant atoms thus poses a complication for transistor scaling. In a complementary view, new opportunities emerge when novel functionality can be implemented in devices deterministically doped with single atoms. The grand price of the latter might be a large scale quantum computer, where quantum bits (qubits) are encoded e.g. in the spin states of electrons and nuclei of single dopant atoms in silicon, or in color centers in diamond. Both the possible detrimental effects of dopant fluctuations and single atom device ideas motivate the development of reliable single atom doping techniques which are the subject of this chapter. Single atom doping can be approached with top down and bottom up techniques. Top down refers to the placement of dopant atoms into a more or less structured matrix environment, like a transistor in silicon. Bottom up refers to approaches to introduce single dopant atoms during the growth of the host matrix e.g. by directed self-assembly and scanning probe assisted lithography. Bottom up approaches are discussed in Chapter XYZ. Since the late 1960's, ion implantation has been a widely used technique to introduce dopant atoms into silicon and other materials in order to modify their electronic properties. It works particularly well in silicon since the damage to the crystal lattice that is induced by ion implantation can be repaired by thermal annealing. In addition, the introduced dopant atoms can be incorporated with high efficiency into lattice position in the silicon host crystal which makes them electrically active. This is not the case for e.g. diamond, which makes ion implantation doping to engineer the electrical properties of diamond, especially for n-type doping much harder then for silicon. Ion implantation is usually a highly statistical process, where high fluences of energetic ions, ranging from {approx}10{sup 9} to >10{sup 16} cm{sup -2} are implanted. For single atom device development, control over the absolute number of ions is needed and ions have to be placed with high spatial resolution. In the following sections we will discuss a series of approaches to single ion implantation with regard to single ion impact sensing and control of single ion positioning.

Schenkel, Thomas

2010-06-11T23:59:59.000Z

116

A single power supply optoelectronic differential amplifier  

E-Print Network [OSTI]

A SINGLE POWER SUPPLY OPTOELECTRONIC DIFFERENTIAL AMPLIFIER A Thesis by YOUNGiXIIN ALBERT CHOI Submitted to the Graduate College of Texas A&M University in partial fulfillment of the requirement for the degree of MASTER OF SCIENCE December... 1987 Major Subject: Electrical Engineering A SINGLE POWER SUPPLY OPTOELECTRONIC DIFFERENTIAL AMPLIFIER A Thesis by YOUNGMIN ALBERT CHOI Approved a. s to style and content by: He y F. aylor (Chairman of Committee) Kai Chang (Member) Ohannes...

Choi, Youngmin Albert

1987-01-01T23:59:59.000Z

117

Single top quark production at the Tevatron  

SciTech Connect (OSTI)

The Tevatron experiments D0 and CDF have found evidence for single top quark production, based on datasets between 0.9 fb{sup -1} and 2.2 fb{sup -1}. Several different multivariate techniques are used to extract the single top quark signal out of the large backgrounds. The cross section measurements are also used to provide the first direct measurement of the CKM matrix element |V{sub tb}|.

Schwienhorst, Reinhard; /Michigan State U.

2008-05-01T23:59:59.000Z

118

An Efficient Source of Single Photons: A Single Quantum Dot in a Micropost Microcavity  

E-Print Network [OSTI]

We have demonstrated efficient production of triggered single photons by coupling a single semiconductor quantum dot to a three-dimensionally confined optical mode in a micropost microcavity. The efficiency of emitting single photons into a single-mode travelling wave is approximately 38%, which is nearly two orders of magnitude higher than for a quantum dot in bulk semiconductor material. At the same time, the probability of having more than one photon in a given pulse is reduced by a factor of seven as compared to light with Poissonian photon statistics.

Matthew Pelton; Charles Santori; Jelena Vuckovic; Bingyang Zhang; Glenn S. Solomon; Jocelyn Plant; Yoshihisa Yamamoto

2002-08-08T23:59:59.000Z

119

Nonlinear interaction between two heralded single photons  

E-Print Network [OSTI]

Harnessing nonlinearities strong enough to allow two single photons to interact with one another is not only a fascinating challenge but is central to numerous advanced applications in quantum information science. Currently, all known approaches are extremely challenging although a few have led to experimental realisations with attenuated classical laser light. This has included cross-phase modulation with weak classical light in atomic ensembles and optical fibres, converting incident laser light into a non-classical stream of photon or Rydberg blockades as well as all-optical switches with attenuated classical light in various atomic systems. Here we report the observation of a nonlinear parametric interaction between two true single photons. Single photons are initially generated by heralding one photon from each of two independent spontaneous parametric downconversion sources. The two heralded single photons are subsequently combined in a nonlinear waveguide where they are converted into a single photon with a higher energy. Our approach highlights the potential for quantum nonlinear optics with integrated devices, and as the photons are at telecom wavelengths, it is well adapted to applications in quantum communication.

T. Guerreiro; A. Martin; B. Sanguinetti; J. S. Pelc; C. Langrock; M. M. Fejer; N. Gisin; H. Zbinden; N. Sangouard; R. T. Thew

2014-03-09T23:59:59.000Z

120

Single Molecule Spectroscopy of Electron Transfer  

SciTech Connect (OSTI)

The objectives of this research are threefold: (1) to develop methods for the study electron transfer processes at the single molecule level, (2) to develop a series of modifiable and structurally well defined molecular and nanoparticle systems suitable for detailed single molecule/particle and bulk spectroscopic investigation, (3) to relate experiment to theory in order to elucidate the dependence of electron transfer processes on molecular and electronic structure, coupling and reorganization energies. We have begun the systematic development of single molecule spectroscopy (SMS) of electron transfer and summaries of recent studies are shown. There is a tremendous need for experiments designed to probe the discrete electronic and molecular dynamic fluctuations of single molecules near electrodes and at nanoparticle surfaces. Single molecule spectroscopy (SMS) has emerged as a powerful method to measure properties of individual molecules which would normally be obscured in ensemble-averaged measurement. Fluctuations in the fluorescence time trajectories contain detailed molecular level statistical and dynamical information of the system. The full distribution of a molecular property is revealed in the stochastic fluctuations, giving information about the range of possible behaviors that lead to the ensemble average. In the case of electron transfer, this level of understanding is particularly important to the field of molecular and nanoscale electronics: from a device-design standpoint, understanding and controlling this picture of the overall range of possible behaviors will likely prove to be as important as designing ia the ideal behavior of any given molecule.

Michael Holman; Ling Zang; Ruchuan Liu; David M. Adams

2009-10-20T23:59:59.000Z

Note: This page contains sample records for the topic "nanoclusters out-perform single" 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

Single-Shot Quantum Process Tomography  

E-Print Network [OSTI]

The standard procedure for quantum process tomography (QPT) involves applying the quantum process on a system initialized in each of a complete set of orthonormal states. The corresponding outputs are then characterized by quantum state tomography (QST), which itself requires the measurement of non-commuting observables realized by independent experiments on identically prepared system states. Thus QPT procedure demands a number of independent measurements, and moreover, this number increases rapidly with the size of the system. However, the total number of independent measurements can be greatly reduced with the availability of ancilla qubits. Ancilla assisted process tomography (AAPT) has earlier been shown to require a single QST of system-ancilla space. Ancilla assisted quantum state tomography (AAQST) has also been shown to perform QST in a single measurement. Here we combine AAPT with AAQST to realize a `single-shot QPT' (SSPT), a procedure to characterize a general quantum process in a single collective measurement of a set of commuting observables. We demonstrate experimental SSPT by characterizing several single-qubit processes using a three-qubit NMR quantum register. Furthermore, using the SSPT procedure we experimentally characterize the twirling process and compare the results with theory.

Abhishek Shukla; T. S. Mahesh

2014-05-27T23:59:59.000Z

122

UV Decontamination of MDA Reagents for Single Cell Genomics  

E-Print Network [OSTI]

Reagents for Single Cell Genomics Janey Lee 1* , Damon TigheReagents for Single Cell Genomics Janey Lee 1 , Damon TigheAbstract Single cell genomics, the amplification and

Lee, Janey

2011-01-01T23:59:59.000Z

123

Chiral tunneling in single and bilayer graphene  

E-Print Network [OSTI]

We review chiral (Klein) tunneling in single-layer and bilayer graphene and present its semiclassical theory, including the Berry phase and the Maslov index. Peculiarities of the chiral tunneling are naturally explained in terms of classical phase space. In a one-dimensional geometry we reduced the original Dirac equation, describing the dynamics of charge carriers in the single layer graphene, to an effective Schr\\"odinger equation with a complex potential. This allowed us to study tunneling in details and obtain analytic formulas. Our predictions are compared with numerical results. We have also demonstrated that, for the case of asymmetric n-p-n junction in single layer graphene, there is total transmission for normal incidence only, side resonances are suppressed.

T. Tudorovskiy; K. J. A. Reijnders; M. I. Katsnelson

2011-06-15T23:59:59.000Z

124

Exploring patterns in European singles charts  

E-Print Network [OSTI]

European singles charts are important part of the music industry responsible for creating popularity of songs. After modeling and exploring dynamics of global album sales in previous papers, we investigate patterns of hit singles popularity according to all data (1966-2015) from weekly charts (polls) in 12 Western European countries. The dynamics of building popularity in various national charts is more than the economy because it depends on spread of information. In our research we have shown how countries may be affected by their neighbourhood and influenced by technological era. We have also computed correlations with geographical and cultural distances between countries in analog, digital and Internet era. We have shown that time delay between the single premiere and the peak of popularity has become shorter under the influence of technology and the popularity of songs depends on geographical distances in analog (1966-1987) and Internet (2004-2015) era. On the other hand, cultural distances between nation...

Buda, Andrzej

2015-01-01T23:59:59.000Z

125

Hydrogenation of single-walled carbon nanotubes  

E-Print Network [OSTI]

Towards the development of a useful mechanism for hydrogen storage, we have studied the hydrogenation of single-walled carbon nanotubes with atomic hydrogen using core-level photoelectron spectroscopy and x-ray absorption spectroscopy. We find that atomic hydrogen creates C-H bonds with the carbon atoms in the nanotube walls and such C-H bonds can be com-pletely broken by heating to 600 oC. We demonstrate approximately 65+/-15 at % hydrogenation of carbon atoms in the single-walled carbon nanotubes which is equivalent to 5.1+/-1.2 weight % hydrogen capacity. We also show that the hydrogenation is a reversible process.

Anton Nikitin; Hirohito Ogasawara; David Mann; Reinhard Denecke; Zhiyong Zhang; Hongjie Dai; KJ Cho; Anders Nilsson

2005-10-14T23:59:59.000Z

126

Electronic conduction through single crystals of polyethylene  

E-Print Network [OSTI]

May, 1966 Major Subjects Physics ELECTRONIC CONDUCTION THROUGH SINGLE CRYSTRLS OF POLYETHYLENE k Thesis By Gerald Maurice Samson Approved as to style and content by: naen of the Committee ad of the D artment ber ber c- The autho. u... talc o Polyot! ylone . -y, i'oo Gerald !':cur"' co Samson Directed by: Zr. Joe S. The predominant conduction mechani m through single cryo' mls op polyethylene is shown to be Schott!cy ( hernal) oui "sion . or tompora- o tu. es - bove 0 C. . "or...

Samson, Gerald Maurice

1966-01-01T23:59:59.000Z

127

A single ion inside a miniature cavity  

E-Print Network [OSTI]

understanding of nature. For instance, Joseph von Fraunhofers observation of absorption-lines in the optical spectrum of the Sun was crucial for the development of Rydbergs formula and Bohrs atomic model. However, under normal conditions the light... the prescribed word limit of 60000 words. Abstract A Single Ion Inside a Miniature Cavity This thesis describes the first experimentally achieved coupling of a single atomic ion to an optical fibre-cavity as well as the first photonic interaction between a...

Steiner, Matthias

2014-04-08T23:59:59.000Z

128

Single Supported Atoms Participate in Catalytic Processes | ornl...  

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

Functional Materials for Energy Single Supported Atoms Participate in Catalytic Processes December 04, 2014 Pathways for NO oxidation on single Pt atoms supported on the (010)...

129

Sorted Single-Walled Carbon Nanotube Films for Transparent Electrodes...  

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

Sorted Single-Walled Carbon Nanotube Films for Transparent Electrodes in Organic Solar Cells Home > Research > ANSER Research Highlights > Sorted Single-Walled Carbon Nanotube...

130

Moneyless strategy-proof mechanism on single-sinked policy ...  

E-Print Network [OSTI]

We completely characterize deterministic strategy-proof and group strategy-proof mechanisms on single- sinked public policy domain. The single-sinked domain...

Megiddo

2012-04-17T23:59:59.000Z

131

Factors Affecting HCCI Combustion Phasing for Fuels with Single...  

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

Affecting HCCI Combustion Phasing for Fuels with Single- and Dual-Stage Chemistry Factors Affecting HCCI Combustion Phasing for Fuels with Single- and Dual-Stage Chemistry 2004...

132

Single Wall Diesel Particulate Filter (DPF) Filtration Efficiency...  

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

Single Wall Diesel Particulate Filter (DPF) Filtration Efficiency Studies Using Laboratory Generated Particles. Single Wall Diesel Particulate Filter (DPF) Filtration Efficiency...

133

Identification of soybean proteins from a single cell type: The...  

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

soybean proteins from a single cell type: The root hair. Identification of soybean proteins from a single cell type: The root hair. Abstract: Root hairs are a terminally...

134

Controlling the quantum state of a single photon emitted from a single polariton  

SciTech Connect (OSTI)

We investigate in detail the optimal conditions for a high fidelity transfer from a single-polariton state to a single-photon state and subsequent homodyne detection of the single photon. We assume that, using various possible techniques, the single polariton has initially been stored as a spin-wave grating in a cloud of cold atoms inside a low-finesse cavity. This state is then transferred to a single-photon optical pulse using an auxiliary beam. We optimize the retrieval efficiency and determine the mode of the local oscillator that maximizes the homodyne efficiency of such a photon. We find that both efficiencies can have values close to one in a large region of experimental parameters.

Stanojevic, Jovica; Parigi, Valentina; Bimbard, Erwan; Tualle-Brouri, Rosa; Ourjoumtsev, Alexei; Grangier, Philippe [Laboratoire Charles Fabry, Institut d'Optique, CNRS, Universite Paris-Sud, Campus Polytechnique, RD 128, FR-91127 Palaiseau cedex (France)

2011-11-15T23:59:59.000Z

135

Single photon absorption by a single atom: from heralded absorption to polarization state mapping  

E-Print Network [OSTI]

Together with photon emission, the absorption of a single photon by a single atom is a fundamental process in matter-light interaction that manifests its quantum mechanical nature. As an experimentally controlled process, it is a key tool for the realization of quantum technologies. In particular, in an atom/photon based quantum network scenario, in which localized atomic particles are used as quantum information processing nodes while photons are used as carriers of quantum information between distant nodes, controlling both emission and absorption of single photons by single atoms is required for quantum coherent state mapping between the two entities. Most experimental efforts to date have focused on establishing the control of single photon emission by single trapped atoms, and the implementation of quantum networking protocols using this interaction. In this chapter, we describe experimental efforts to control the process of single photon absorption by single trapped ions. We describe a series of experiments in which polarization entangled photon pairs, generated by a spontaneous parametric down-conversion source, are coupled to a single ion. First the source is operated to generate heralded single photons, and coincidences between the absorption event of one photon of the pair and the detection of the heralding partner photon are observed. We then show how polarization control in the process is established, leading to the manifestation of the photonic polarization entanglement in the absorption process. Finally, we introduce protocols in which this interaction scheme is harnessed to perform tasks in a quantum network, such as entanglement distribution among distant nodes of the network, and we demonstrate a specific protocol for heralded, high-fidelity photon-to-atom quantum state transfer.

Nicolas Piro; Jrgen Eschner

2015-02-19T23:59:59.000Z

136

Parallel MATLAB: Single Program Multiple Data  

E-Print Network [OSTI]

Parallel MATLAB: Single Program Multiple Data John Burkardt (FSU) Gene Cliff (AOE/ICAM - ecliff Research Computing ICAM: Interdisciplinary Center for Applied Mathematics 1 / 67 #12;MATLAB Parallel MATLAB sets up one special agent called the client. MATLAB sets up the requested number of workers, each

Crawford, T. Daniel

137

Parallel MATLAB: Single Program Multiple Data  

E-Print Network [OSTI]

Parallel MATLAB: Single Program Multiple Data John Burkardt (FSU) Gene Cliff (AOE/ICAM - ecliff Research Computing ICAM: Interdisciplinary Center for Applied Mathematics 1 / 67 #12;Matlab Parallel ( 'myscript', 'Profile', ... 'ithaca_R2012a', 'matlabpool', 7 ) 5 / 67 #12;SPMD: The SPMD Environment Matlab

Crawford, T. Daniel

138

Parallel MATLAB: Single Program Multiple Data  

E-Print Network [OSTI]

Parallel MATLAB: Single Program Multiple Data John Burkardt (FSU) Gene Cliff (AOE/ICAM - ecliff: Advanced Research Computing ICAM: Interdisciplinary Center for Applied Mathematics 1 / 69 #12;Matlab ( 'myscript', 'Profile', ... 'ithaca_R2012a', 'matlabpool', 7 ) 5 / 69 #12;SPMD: The SPMD Environment Matlab

Crawford, T. Daniel

139

Parallel MATLAB: Single Program Multiple Data  

E-Print Network [OSTI]

Parallel MATLAB: Single Program Multiple Data John Burkardt (FSU) Gene Cliff (AOE/ICAM - ecliff Research Computing ICAM: Interdisciplinary Center for Applied Mathematics 1 / 66 #12;MATLAB Parallel MATLAB sets up one special worker called the client. MATLAB sets up the requested number of workers, each

Crawford, T. Daniel

140

Thermodynamics for single-molecule stretching experiments  

E-Print Network [OSTI]

Thermodynamics for single-molecule stretching experiments J.M. Rubi,a D. Bedeauxb and S. Kjelstrupb, Trondheim, 7491-Norway May 3, 2006 Abstract We show how to construct non-equilibrium thermodynamics for systems too small to be considered thermodynamically in a traditional sense. Through the use of a non

Kjelstrup, Signe

Note: This page contains sample records for the topic "nanoclusters out-perform single" 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

Single Carbon Nanotube Transistor at GHz Frequency  

E-Print Network [OSTI]

with a capacitance per unit gate length of lg, Cgeo/lg > CQ/lg ) 4e2/hVF 400 aF/µm for VF 4 ? 105 m/s, a typical or semicon- ducting quantum dots use either single electron transistors15,16 or quantum point contact

Plaçais, Bernard

142

7, 64136457, 2007 Single particle mass  

E-Print Network [OSTI]

to use Mexico City as a case study of air pollution mitigation while major advances continue to improve the regional air quality.5 To help decrease particulate matter (PM) pollution in Mexico City, ACPD 7, 6413­6457, 2007 Single particle mass spectrometry of Mexico City aerosols R. C. Moffet

Paris-Sud XI, Université de

143

Electro-Optic Modulation of Single Photons  

E-Print Network [OSTI]

We use the Stokes photon of a biphoton pair to set the time origin for electro-optic modulation of the wave function of the anti-Stokes photon thereby allowing arbitrary phase and amplitude modulation. We demonstrate conditional single-photon wave functions composed of several pulses, or instead, having gaussian or exponential shapes.

Pavel Kolchin; Chinmay Belthangady; Shengwang Du; G. Y. Yin; S. E. Harris

2008-08-02T23:59:59.000Z

144

RISING ECONOMIC INSECURITY AMONG SENIOR SINGLE WOMEN  

E-Print Network [OSTI]

RISING ECONOMIC INSECURITY AMONG SENIOR SINGLE WOMEN Tatjana Meschede Martha Cronin Laura Sullivan paying bills, forgoing home maintenance or medical needs. New research shows that economic insecurity of the Great Recession had been felt--economic insecurity among this population subgroup increased by one

Snider, Barry B.

145

Multi-collector Single-collector  

E-Print Network [OSTI]

Multi-collector ICP-MS Single-collector ICP-MS 50 m Olivine Glass 50 m Epoxy Olivine Glass Opx Monitor Plates Electrostatic Analyzer Magnet Zoom Lens Collector Array Defining Slit Earth Guard Map Filter Electron Multiplier Nu Plasma Collector Schematic (not to scale) Collector Assembly 20 micron spot

Mcdonough, William F.

146

Feedback cooling of a single trapped ion  

E-Print Network [OSTI]

Based on a real-time measurement of the motion of a single ion in a Paul trap, we demonstrate its electro-mechanical cooling below the Doppler limit by homodyne feedback control (cold damping). The feedback cooling results are well described by a model based on a quantum mechanical Master Equation.

Pavel Bushev; Daniel Rotter; Alex Wilson; Francois Dubin; Christoph Becher; Juergen Eschner; Rainer Blatt; Viktor Steixner; Peter Rabl; Peter Zoller

2005-09-19T23:59:59.000Z

147

Nano-soldering to single atomic layer  

DOE Patents [OSTI]

A simple technique to solder submicron sized, ohmic contacts to nanostructures has been disclosed. The technique has several advantages over standard electron beam lithography methods, which are complex, costly, and can contaminate samples. To demonstrate the soldering technique graphene, a single atomic layer of carbon, has been contacted, and low- and high-field electronic transport properties have been measured.

Girit, Caglar O. (Berkeley, CA); Zettl, Alexander K. (Kensington, CA)

2011-10-11T23:59:59.000Z

148

Preparation and Characterization of Monodispersed WO3 Nanoclusters...  

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

early transition metal oxide system for catalysis studiesdirect sublimation of tungsten trioxide on TiO2(110). Isolated monodispersed cyclic trimers, i.e., (WO3)3, can be...

149

Interfacial Electron Transfer into Functionalized Crystalline Polyoxotitanate Nanoclusters  

E-Print Network [OSTI]

processes in a dye-sensitized solar cell. Theoretical simulations of the electron transfer of molecular adsorption are precisely defined. INTRODUCTION Dye-sensitized solar cells (DSSC) promise the dye sensitizer into the conduction band of the semiconductor substrate. Naturally, the interfaces

Coppens, Philip

150

Site-Selective Ionization in Nanoclusters Affects Subsequent...  

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

structures, nanotubes, or two-dimensional graphene sheets. Researchers from Western Michigan University, Berkeley Lab, and other international research facilities...

151

Unusual Structure and Magnetism in MnO Nanoclusters  

E-Print Network [OSTI]

We report an unusual evolution of structure and magnetism in stoichiometric MnO clusters based on an extensive and unbiased search through the potential energy surface within density functional theory. The smaller clusters, containing up to five MnO units, adopt two-dimensional structures; and regardless of the size of the cluster, magnetic coupling is found to be antiferromagnetic in contrast to previous theoretical findings. Predicted structure and magnetism are strikingly different from the magnetic core of Mn-based molecular magnets, whereas they were previously argued to be similar. Both of these features are explained through the inherent electronic structures of the clusters.

Ganguly, Shreemoyee; Sanyal, Biplab; Mookerjee, Abhijit; 10.1103/PhysRevB.83.020411

2011-01-01T23:59:59.000Z

152

Unusual structure and magnetism in manganese oxide nanoclusters  

E-Print Network [OSTI]

We report an unusual evolution of structure and magnetism in stoichiometric MnO clusters based on an extensive and unbiased search through the potential-energy surface within density functional theory. The smaller clusters, ...

Ganguly, Shreemoyee

153

Harnessing Molecule-solid Duality of Nanoclusters/Nanoparticles for  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: Vegetation ProposedUsingFun with Bigfront.jpgcommunity200cell 9 HanfordCell CathodeHarness the Power

154

A Goldilocks Catalyst: Nanocluster 'just right' for Recycling Carbon  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsrucLasDelivered‰PNGExperience hands-onASTROPHYSICSHe β-Research and EducationF OAGlobal8

155

Preparation and Characterization of Monodispersed WO3 Nanoclusters on  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the1 - SeptemberMicroneedles for medical point07.06 Agenda 2006UptakeDOE

156

Ferromagnetic Semiconductor Nanoclusters: Co-doped Cu2O. | EMSL  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: Vegetation ProposedUsing ZirconiaPolicyFeasibility ofSmall15.000TechnologyTune ITFerrin

157

From Ultrafine Thiolate-Capped Copper Nanoclusters toward Copper Sulfide  

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

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

158

Radiation Stability of Nanoclusters in Nano-structured Oxide Dispersion  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the1 -the Mid-Infrared at 278, 298, and 323 RS-PO-0001-001.docW.

159

Site-Selective Ionization in Nanoclusters Affects Subsequent Fragmentation  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsrucLas ConchasPassiveSubmitted forHighlightsSeminarsSiliconSite Map TUNL pdf's | FAS

160

Site-Selective Ionization in Nanoclusters Affects Subsequent Fragmentation  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsrucLas ConchasPassiveSubmitted forHighlightsSeminarsSiliconSite Map TUNL pdf's | FASSite-Selective

Note: This page contains sample records for the topic "nanoclusters out-perform single" 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

Structures and Stabilities of (MgO)n Nanoclusters. | EMSL  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security AdministrationcontrollerNanocrystalline Gallium Oxide Thin Films. | EMSL Morphology,Structures

162

Site-Selective Ionization in Nanoclusters Affects Subsequent Fragmentation  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administrationcontroller systemsBi (2)Sharing Smartversatileplatform

163

Site-Selective Ionization in Nanoclusters Affects Subsequent Fragmentation  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administrationcontroller systemsBi (2)Sharing SmartversatileplatformSite-Selective Ionization in

164

Site-Selective Ionization in Nanoclusters Affects Subsequent Fragmentation  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administrationcontroller systemsBi (2)Sharing SmartversatileplatformSite-Selective Ionization

165

Site-Selective Ionization in Nanoclusters Affects Subsequent Fragmentation  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administrationcontroller systemsBi (2)Sharing SmartversatileplatformSite-Selective

166

Site-Selective Ionization in Nanoclusters Affects Subsequent Fragmentation  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administrationcontroller systemsBi (2)Sharing SmartversatileplatformSite-SelectiveSite-Selective

167

Stability Of Nanoclusters In 14YWT Oxide Dispersion Strengthened Steel  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsrucLas ConchasPassiveSubmittedStatus Tom Fletcher,FutureNanostructuredSPRING NEWSUnder Heavy

168

A Survey of Single-Database PIR: Techniques and Applications  

E-Print Network [OSTI]

A Survey of Single-Database PIR: Techniques and Applications Rafail Ostrovsky William E. Skeith III Abstract In this paper we survey the notion of Single-Database Private Information Re- trieval (PIR). The first Single-Database PIR was constructed in 1997 by Kushilevitz and Ostrovsky and since then Single

Ostrovsky, Rafail

169

A Survey of SingleDatabase PIR: Techniques and Applications #  

E-Print Network [OSTI]

A Survey of Single­Database PIR: Techniques and Applications # Rafail Ostrovsky + William E. Skeith (PIR). The first Single­Database PIR was constructed in 1997 by Kushilevitz and Ostrovsky and since then Single­Database PIR has emerged as an important cryp­ tographic primitive. For example, Single

170

A Survey of SingleDatabase PIR: Techniques and Applications  

E-Print Network [OSTI]

A Survey of Single­Database PIR: Techniques and Applications Rafail Ostrovsky # William E. Skeith (PIR). The first Single­Database PIR was constructed in 1997 by Kushilevitz and Ostrovsky and since then Single­Database PIR has emerged as an important cryp­ tographic primitive. For example, Single

Ostrovsky, Rafail

171

Discovery of single top quark production  

SciTech Connect (OSTI)

The top quark is by far the heaviest known fundamental particle with a mass nearing that of a gold atom. Because of this strikingly high mass, the top quark has several unique properties and might play an important role in electroweak symmetry breaking - the mechanism that gives all elementary particles mass. Creating top quarks requires access to very high energy collisions, and at present only the Tevatron collider at Fermilab is capable of reaching these energies. Until now, top quarks have only been observed produced in pairs via the strong interaction. At hadron colliders, it should also be possible to produce single top quarks via the electroweak interaction. Studies of single top quark production provide opportunities to measure the top quark spin, how top quarks mix with other quarks, and to look for new physics beyond the standard model. Because of these interesting properties, scientists have been looking for single top quarks for more than 15 years. This thesis presents the first discovery of single top quark production. An analysis is performed using 2.3 fb{sup -1} of data recorded by the D0 detector at the Fermilab Tevatron Collider at centre-of-mass energy {radical}s = 1.96 TeV. Boosted decision trees are used to isolate the single top signal from background, and the single top cross section is measured to be {sigma}(p{bar p} {yields} tb + X, tqb + X) = 3.74{sub -0.74}{sup +0.95} pb. Using the same analysis, a measurement of the amplitude of the CKM matrix element V{sub tb}, governing how top and b quarks mix, is also performed. The measurement yields: |V{sub tb}|f{sub 1}{sup L}| = 1.05{sub -0.12}{sup +0.13}, where f{sub 1}{sup L} is the left-handed Wtb coupling. The separation of signal from background is improved by combining the boosted decision trees with two other multivariate techniques. A new cross section measurement is performed, and the significance for the excess over the predicted background exceeds 5 standard deviations.

Gillberg, Dag

2009-05-01T23:59:59.000Z

172

Ultrasonic characterization of single drops of liquids  

DOE Patents [OSTI]

Ultrasonic characterization of single drops of liquids. The present invention includes the use of two closely spaced transducers, or one transducer and a closely spaced reflector plate, to form an interferometer suitable for ultrasonic characterization of droplet-size and smaller samples without the need for a container. The droplet is held between the interferometer elements, whose distance apart may be adjusted, by surface tension. The surfaces of the interferometer elements may be readily cleansed by a stream of solvent followed by purified air when it is desired to change samples. A single drop of liquid is sufficient for high-quality measurement. Examples of samples which may be investigated using the apparatus and method of the present invention include biological specimens (tear drops; blood and other body fluid samples; samples from tumors, tissues, and organs; secretions from tissues and organs; snake and bee venom, etc.) for diagnostic evaluation, samples in forensic investigations, and detection of drugs in small quantities.

Sinha, Dipen N. (Los Alamos, NM)

1998-01-01T23:59:59.000Z

173

Chromosome characterization using single fluorescent dye  

DOE Patents [OSTI]

Chromosomes are characterized by fluorescent emissions from a single fluorescent dye that is excited over two different wavelengths. A mixture containing chromosomes is stained with a single dye selected from the group consisting of TOTO and YOYO and the stained chromosomes are placed in a flow cytometer. The fluorescent dye is excited sequentially by a first light having a wavelength in the ultraviolet range to excite the TOTO or YOYO to fluoresce at a first intensity and by a second light having a wavelength effective to excite the TOTO or YOYO dye to fluoresce at a second intensity. Specific chromosomes may be identified and sorted by intensity relationships between the first and second fluorescence emissions.

Crissman, Harry A. (Los Alamos, NM); Hirons, Gregory T. (Irvine, CA)

1995-01-01T23:59:59.000Z

174

Neutron detection with single crystal organic scintillators  

SciTech Connect (OSTI)

Detection of high-energy neutrons in the presence of gamma radiation background utilizes pulse-shape discrimination (PSD) phenomena in organics studied previously only with limited number of materials, mostly liquid scintillators and single crystal stilbene. The current paper presents the results obtained with broader varieties of luminescent organic single crystals. The studies involve experimental tools of crystal growth and material characterization in combination with the advanced computer modeling, with the final goal of better understanding the relevance between the nature of the organic materials and their PSD properties. Special consideration is given to the factors that may diminish or even completely obscure the PSD properties in scintillating crystals. Among such factors are molecular and crystallographic structures that determine exchange coupling and exciton mobility in organic materials and the impurity effect discussed on the examples of trans-stilbene, bibenzyl, 9,10-diphenylanthracene and diphenylacetylene.

Zaitseva, N; Newby, J; Hamel, S; Carman, L; Faust, M; Lordi, V; Cherepy, N; Stoeffl, W; Payne, S

2009-07-15T23:59:59.000Z

175

Single-particle states in transcurium nuclei.  

SciTech Connect (OSTI)

Identification of single-particle states in the heaviest known nuclei is important because their energies can be used to test the single-particle potential in these high-Z elements. These states can be identified by studying the decay schemes of very heavy odd-mass nuclides. For neutrons, the heaviest odd-mass nuclide available in milliCurie quantities is the 20-h {sup 255}Fm and for protons the heaviest nuclide available is the 20-d {sup 253}Es. These two isotopes were obtained from the Transplutonium Element Production Program at Oak Ridge and their spectra were measured with high-resolution germanium spectrometers. From the results of these measurements we have identified states in {sup 251}Cf and {sup 249}Bk up to 1 MeV excitation energy.

Ahmad, I.

1999-09-30T23:59:59.000Z

176

Single chain elasticity and thermoelasticity of polyethylene  

E-Print Network [OSTI]

Single-chain elasticity of polyethylene at $\\theta$ point up to 90% of stretching with respect to its contour length is computed by Monte-Carlo simulation of an atomistic model in continuous space. The elasticity law together with the free-energy and the internal energy variations with stretching are found to be very well represented by the wormlike chain model up to 65% of the chain elongation, provided the persistence length is treated as a temperature dependent parameter. Beyond this value of elongation simple ideal chain models are not able to describe the Monte Carlo data in a thermodynamic consistent way. This study reinforces the use of the wormlike chain model to interpret experimental data on the elasticity of synthetic polymers in the finite extensibility regime, provided the chain is not yet in its fully stretched regime. Specific solvent effects on the elasticity law and the partition between energetic and entropic contributions to single chain elasticity are investigated.

John T. Titantah; Carlo Pierleoni; Jean-Paul Ryckaert

2002-09-05T23:59:59.000Z

177

Annealing of single lamella nanoparticles of polyethylene  

E-Print Network [OSTI]

We study the change of the size and structure of freely suspended single lamella nanoparticles of polyethylene during thermal annealing in aqueous solutions. Using small-angle x-ray scattering and cryogenic transmission electron microscopy, it is shown that a doubling of the crystalline lamella sandwiched between two amorphous polymer layers is obtained by annealing the nanoparticles at 125 C. This thickening of the crystalline lamella can be understood in terms of an unlooping of polymer chains within a single nanoparticle. In addition a variation of the annealing temperature from 90 C to 115 C demonstrates that the inverse of the crystalline lamellar thickness increases linearly with the annealing temperatures leading to a recrystallization line in a Gibbs-Thomson graph. Since the nanoparticles consist of about only eight polymer chains, they can be considered as a ideal candidates for the experimental realization of equilibrium polymer crystals.

Christophe N. Rochette; Sabine Rosenfeldt; Katja Henzler; Frank Polzer; Matthias Ballauff; Qiong Tong; Stefan Mecking; Markus Drechsler; Theyencheri Narayanan; Ludger Harnau

2011-07-05T23:59:59.000Z

178

Method for preparation of single chain antibodies  

DOE Patents [OSTI]

This invention provides a method for identifying cells expressing a target single chain antibody (scFv) directed against a target antigen from a collection of cells that includes cells that do not express the target scFv, comprising the step of combining the collection of cells with an anti-idiotype directed to an antibody specific for the target antigen and detecting interaction, if any, of the anti-idiotype with the cells, wherein the occurrence of an interaction identifies the cell as one which expresses the target scFv. This invention also provides a method for making a single chain antibody (scFv) directed against an antigen, wherein the selection of clones is made based upon interaction of those clones with an appropriate anti-idiotype, and heretofore inaccessible scFv so made. This invention provides the above methods or any combination thereof. Finally, this invention provides various uses of these methods.

Cheung, Nai-Kong V. (New York, NY); Guo, Hong-fen (New York, NY)

2012-04-03T23:59:59.000Z

179

Tapered fiber coupling of single photons emitted by a deterministically positioned single nitrogen vacancy center  

SciTech Connect (OSTI)

A diamond nano-crystal hosting a single nitrogen vacancy (NV) center is optically selected with a confocal scanning microscope and positioned deterministically onto the subwavelength-diameter waist of a tapered optical fiber (TOF) with the help of an atomic force microscope. Based on this nano-manipulation technique, we experimentally demonstrate the evanescent coupling of single fluorescence photons emitted by a single NV-center to the guided mode of the TOF. By comparing photon count rates of the fiber-guided and the free-space modes and with the help of numerical finite-difference time domain simulations, we determine a lower and upper bound for the coupling efficiency of (9.5??0.6)% and (10.4??0.7)%, respectively. Our results are a promising starting point for future integration of single photon sources into photonic quantum networks and applications in quantum information science.

Liebermeister, Lars, E-mail: lars.liebermeister@physik.uni-muenchen.de; Petersen, Fabian; Mnchow, Asmus v.; Burchardt, Daniel; Hermelbracht, Juliane; Tashima, Toshiyuki [Fakultt fr Physik, Ludwig-Maximilians-Universitt Mnchen, 80799 Mnchen (Germany); Schell, Andreas W.; Benson, Oliver [Institut fr Physik, Humboldt-Universitt zu Berlin, 12489 Berlin (Germany); Meinhardt, Thomas; Krueger, Anke [Institut fr Organische Chemie, Universitt Wrzburg, 97074 Wrzburg (Germany); Wilhelm Conrad Roentgen Research Center for Complex Materials Systems, Universitt Wrzburg, 97074 Wrzburg (Germany); Stiebeiner, Ariane; Rauschenbeutel, Arno [Atominstitut, Technische Universitt Wien, 1020 Wien (Austria); Weinfurter, Harald; Weber, Markus, E-mail: markusweber@lmu.de [Fakultt fr Physik, Ludwig-Maximilians-Universitt Mnchen, 80799 Mnchen (Germany); Max-Planck-Institut fr Quantenoptik, 85748 Garching (Germany)

2014-01-20T23:59:59.000Z

180

Mid-Infrared Single Photon Counting  

E-Print Network [OSTI]

We report a procedure to detect mid-infrared single photons at 4.65 um via a two-stage scheme based on Sum Frequency Generation, using a Periodically Poled Lithium Niobate (PPLN) nonlinear crystal and a Silicon Avalanche Photodiode. An experimental investigation shows that, in addition to a high timing resolution, this technique yields a detection sensitivity of 1.24 pW with 63mW of net pump power.

Guilherme Temporao; Sebastien Tanzilli; Hugo Zbinden; Nicolas Gisin; Thierry Aellen; Marcella Giovannini; Jerome Faist

2005-11-29T23:59:59.000Z

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


181

1993 NEC 1) (Single-Walled Carbon  

E-Print Network [OSTI]

MWNT (Vapor-grown carbon fiber, VGCF)33) 10001300 34) SWNT CCVD Smalley 15) CO SWNT SWNT 1993 NEC 1) (Single-Walled Carbon Nanotubes, SWNTs) 1(a) 1nm µm µm SWNTs 2) (MWNTs) 1(c 29,30,35-41) SWNT , MgO Fe/Co, Ni/Co, Mo/Co nm SWNT VGCF Fe(CO)5 SWNT Ethanol tank Hot

Maruyama, Shigeo

182

Dual echelon femtosecond single-shot spectroscopy  

SciTech Connect (OSTI)

We have developed a femtosecond single-shot spectroscopic technique to measure irreversible changes in condensed phase materials in real time. Crossed echelons generate a two-dimensional array of time-delayed pulses with one femtosecond probe pulse. This yields 9 ps of time-resolved data from a single laser shot, filling a gap in currently employed measurement methods. We can now monitor ultrafast irreversible dynamics in solid-state materials or other samples that cannot be flowed or replenished between laser shots, circumventing limitations of conventional pump-probe methods due to sample damage or product buildup. Despite the absence of signal-averaging in the single-shot measurement, an acceptable signal-to-noise level has been achieved via background and reference calibration procedures. Pump-induced changes in relative reflectivity as small as 0.2%?0.5% are demonstrated in semimetals, with both electronic and coherent phonon dynamics revealed by the data. The optical arrangement and the space-to-time conversion and calibration procedures necessary to achieve this level of operation are described. Sources of noise and approaches for dealing with them are discussed.

Shin, Taeho; Wolfson, Johanna W.; Teitelbaum, Samuel W.; Kandyla, Maria; Nelson, Keith A., E-mail: kanelson@mit.edu [Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139 (United States)

2014-08-15T23:59:59.000Z

183

Testing and Lubrication for Single Race Bearings  

SciTech Connect (OSTI)

Three ES and H-compatible lubricants (Environment, Safety and Health) for single race bearing applications and one hybrid-material single race bearings were evaluated and compared against single race bearings with trichlorotrifluoroethane (Freon) deposition of low molecular weight polytetrafluoroethylene (PTFE) bearing lubricant extracted from Vydax{trademark}. Vydax is a product manufactured by DuPont consisting of various molecular weights of PTFE suspended in trichlorotrifluoroethane (Freon), which is an ozone-depleting solvent. Vydax has been used as a bearing lubricant in stronglink mechanisms since 1974. Hybrid bearings with silicon nitride balls and molded glass-nylon-Teflon retainers, bearings lubricated with titanium carbide (TiC) on the balls, bearings lubricated with sputtered MoS{sub 2} on races and retainers, and bearings lubricated with electrophoretically deposited MoS{sub 2} were evaluated. The bearings were maintained in a preloaded state in bearing cartridges during cycling and vibration tests. Bearings with electrophoretically deposited MoS{sub 2} performed as well as bearings lubricated with Vydax and were the best performing candidate. All candidates were suitable for low preload applications. Bearings with TiC coated balls and bearings lubricated with sputtered MoS{sub 2} on the races and retainers performed well at high preloads, though not as well as bearings lubricated with electrophoretic deposition of MoS{sub 2}. Bearings with silicon nitride balls were not suitable for high preload applications.

Steinhoff, R.G.

1998-03-04T23:59:59.000Z

184

Quantum thermal machines with single nonequilibrium environments  

E-Print Network [OSTI]

We propose a scheme for a quantum thermal machine made by atoms interacting with a single non-equilibrium electromagnetic field. The field is produced by a simple configuration of macroscopic objects held at thermal equilibrium at different temperatures. We show that these machines can deliver all thermodynamic tasks (cooling, heating and population inversion), and this by establishing quantum coherence with the body on which they act. Remarkably, this system allows to reach efficiencies at maximum power very close to the Carnot limit, much more than in existing models. Our findings offer a new paradigm for efficient quantum energy flux management, and can be relevant for both experimental and technological purposes.

Bruno Leggio; Bruno Bellomo; Mauro Antezza

2015-01-08T23:59:59.000Z

185

Niobium superconducting nanowire single-photon detectors  

E-Print Network [OSTI]

We investigate the performance of superconducting nanowire photon detectors fabricated from ultra-thin Nb. A direct comparison is made between these detectors and similar nanowire detectors fabricated from NbN. We find that Nb detectors are significantly more susceptible than NbN to thermal instability (latching) at high bias. We show that the devices can be stabilized by reducing the input resistance of the readout. Nb detectors optimized in this way are shown to have approximately 2/3 the reset time of similar large-active-area NbN detectors of the same geometry, with approximately 6% detection efficiency for single photons at 470 nm.

Annunziata, Anthony J; Chudow, Joel D; Frunzio, Luigi; Rooks, Michael J; Frydman, Aviad; Prober, Daniel E

2009-01-01T23:59:59.000Z

186

Quantum Clock Synchronization with a Single Qudit  

E-Print Network [OSTI]

Clock synchronization for nonfaulty processes in multiprocess networks is indispensable for a variety of technologies. A reliable system must be able to resynchronize the nonfaulty processes upon some components failing causing the distribution of incorrect or conflicting information in the network. The task of synchronizing such networks is related to detectable Byzantine agreement (DBA), which can classically be solved using recursive algorithms if and only if less than one-third of the processes are faulty. Here we introduce a nonrecursive quantum algorithm that solves the DBA and achieves clock synchronization in the presence of arbitrary many faulty processes by using only a single quantum system.

Armin Tavakoli; Adn Cabello; Marek ?ukowski; Mohamed Bourennane

2015-01-23T23:59:59.000Z

187

Single atom as a macroscopic entanglement source  

E-Print Network [OSTI]

by many authors including the generation of entangled coherent state #3;1?3#4;, single photon and vacuum entanglement #3;4#4;, and two-atom entanglement #3;5#4;. More recently, generation of macroscopic entangled states via phase sensitive... cascade configuration crossing or trapped in a two-mode field cavity. The atomic level configuration is depicted in Fig. 1. The two atomic transitions #5;a#6;? #5;b#6; and #5;b#6;? #5;c#6; interact with the two cavity modes with detunings #1...

Zhou, Ling; Xiong, Han; Zubairy, M. Suhail.

2006-01-01T23:59:59.000Z

188

Feedback Cooling of a Single Neutral Atom  

E-Print Network [OSTI]

We demonstrate feedback cooling of the motion of a single rubidium atom trapped in a high-finesse optical resonator to a temperature of about 160 \\mu K. Time-dependent transmission and intensity-correlation measurements prove the reduction of the atomic position uncertainty. The feedback increases the 1/e storage time into the one second regime, 30 times longer than without feedback. Feedback cooling therefore rivals state-of-the-art laser cooling, but with the advantages that it requires less optical access and exhibits less optical pumping.

Markus Koch; Christian Sames; Alexander Kubanek; Matthias Apel; Maximilian Balbach; Alexei Ourjoumtsev; Pepijn W. H. Pinkse; Gerhard Rempe

2010-10-15T23:59:59.000Z

189

Transient Rayleigh scattering from single semiconductor nanowires  

SciTech Connect (OSTI)

Transient Rayleigh scattering spectroscopy is a new pump-probe technique to study the dynamics and cooling of photo-excited carriers in single semiconductor nanowires. By studying the evolution of the transient Rayleigh spectrum in time after excitation, one can measure the time evolution of the density and temperature of photo-excited electron-hole plasma (EHP) as they equilibrate with lattice. This provides detailed information of dynamics and cooling of carriers including linear and bimolecular recombination properties, carrier transport characteristics, and the energy-loss rate of hot electron-hole plasma through the emission of LO and acoustic phonons.

Montazeri, Mohammad; Jackson, Howard E.; Smith, Leigh M. [Department of Physics, University of Cincinnati, Cincinnati, OH 45221-0011 (United States); Yarrison-Rice, Jan M. [Department of Physics, Miami University, Oxford, OH 45056 (United States); Kang, Jung-Hyun; Gao, Qiang; Tan, Hark Hoe; Jagadish, Chennupati [Department of Electronic Materials Engineering, Research School of Physics and Engineering, The Australian National University, Canberra, ACT 0200 (Australia)

2013-12-04T23:59:59.000Z

190

Controlled synthesis of single-crystalline graphene  

SciTech Connect (OSTI)

This paper reports the controlled synthesis of single-crystalline graphene on the back side of copper foil using CH{sub 4} as the precursor. The influence of growth time and the pressure ratio of CH{sub 4}/H{sub 2} on the structure of graphene are examined. An optimized polymer-assisted method is used to transfer the synthesized graphene onto a SiO{sub 2}/Si substrate. Scanning electron microscopy and Raman spectroscopy are used to characterize the graphene.

Xueshen, Wang, E-mail: wangxs@nim.ac.cn; Jinjin, Li, E-mail: jinjinli@nim.ac.cn; Qing, Zhong; Yuan, Zhong; Mengke, Zhao; Yonggang, Liu [National Institute of Metrology, Beijing, China, 100013 (China)] [National Institute of Metrology, Beijing, China, 100013 (China)

2014-03-15T23:59:59.000Z

191

Hanford Single-Shell Tank Integrity Program  

Office of Environmental Management (EM)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) "of Energy Power.pdf11-161-LNG | Department ofHTS Cable Projects HTS Cable ProjectsHanford Single Hanford

192

Panoramic Holography: Toward a Single Shot Stopwatch  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the1 - September 2006 TheSteven Ashby Dr. StevenPanoramic Holography: Toward a Single

193

ARM - Field Campaign - Single Column Model IOP  

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

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

194

Live Cell Single Molecule Fluorescence Microscope | EMSL  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsruc DocumentationP-SeriesFlickrinformationPostdocsCenterCentera A B C D E F G H ILive Cell Single

195

Mass Spectrometer: Single Particle (SPLAT II) | EMSL  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsrucLas Conchas recovery challenge fund LasDubey selected asMaratMarySingle Particle (SPLAT II)

196

Single Cystal Services | The Ames Laboratory  

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

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

197

Single-Shell Tank Evaluations - Hanford Site  

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

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

198

Single File Line, Please! | The Ames Laboratory  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administrationcontroller systemsBi (2)Sharing Smart GridShiftMethodSimwYpes(tm) and47-000Single File

199

Single-Column Modeling R. B. Stull  

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

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200

Pseudo-Single-Bunch Expands Experimental Scope  

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

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Note: This page contains sample records for the topic "nanoclusters out-perform single" 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

Pseudo-Single-Bunch Expands Experimental Scope  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the1 - SeptemberMicroneedlesAdvanced PhotonPseudo-Single-Bunch Expands Experimental

202

Pseudo-Single-Bunch Expands Experimental Scope  

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

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203

Neutron single target spin asymmetries in SIDIS  

SciTech Connect (OSTI)

The experiment E06-010 in Hall A at Jefferson Lab took data between November 2008 and February 2009 to directly measure, for the first time, the pion (and kaon) single "neutron" target-spin asymmetry (SSA) in semi-inclusive DIS from a polarized 3He target. Collins, Sivers (and Pretzelosity) neutron asymmetries are going to be extracted from the measured SSA. Details of the experiment are described together with the preliminary results of the ongoing analysis. Near future Hall A experiments on transverse nucleon spin structure are shorty reviewed.

Evaristo Cisbani

2010-04-01T23:59:59.000Z

204

Ultrasonic characterization of single drops of liquids  

DOE Patents [OSTI]

Ultrasonic characterization of single drops of liquids is disclosed. The present invention includes the use of two closely spaced transducers, or one transducer and a closely spaced reflector plate, to form an interferometer suitable for ultrasonic characterization of droplet-size and smaller samples without the need for a container. The droplet is held between the interferometer elements, whose distance apart may be adjusted, by surface tension. The surfaces of the interferometer elements may be readily cleansed by a stream of solvent followed by purified air when it is desired to change samples. A single drop of liquid is sufficient for high-quality measurement. Examples of samples which may be investigated using the apparatus and method of the present invention include biological specimens (tear drops; blood and other body fluid samples; samples from tumors, tissues, and organs; secretions from tissues and organs; snake and bee venom, etc.) for diagnostic evaluation, samples in forensic investigations, and detection of drugs in small quantities. 5 figs.

Sinha, D.N.

1998-04-14T23:59:59.000Z

205

Single coil bistable, bidirectional micromechanical actuator  

DOE Patents [OSTI]

Micromechanical actuators capable of bidirectional and bistable operation can be formed on substrates using lithographic processing techniques. Bistable operation of the microactuator is obtained using a single coil and a magnetic core with a gap. A plunger having two magnetic heads is supported for back and forth linear movement with respect to the gap in the magnetic core, and is spring biased to a neutral position in which the two heads are on each side of the gap in the core. The single electrical coil is coupled to the core and is provided with electrical current to attract one of the heads toward the core by reluctance action to drive the plunger to a limit of travel in one direction. The current is then cut off and the plunger returns by spring action toward the gap, whereafter the current is reapplied to the coil to attract the other head of the plunger by reluctance action to drive the plunger to its other limit of travel. This process can be repeated at a time when switching of the actuator is required.

Tabat, Ned (Madison, WI); Guckel, Henry (Madison, WI)

1998-09-15T23:59:59.000Z

206

Chiral Dynamics and Single-Spin Asymmetries  

E-Print Network [OSTI]

Parity-conserving single-spin asymmetries provide a specific measure of coherent spin-orbit dynamics in quantum chromodynamics. The origin of these effects can be traced to the interplay of chiral dynamics and confinement in the theory. The most elegant display of the relevant mechanisms occurs in the Collins functions and the polarizing fragmentation functions and fracture functions for particles with spin. In the nucleon, these same dynamical mechanisms generate virtual quantum structures leading to the Boer-Mulders functions and orbital distributions. Two complementary formalisms for these distributions appear. The familiar gauge-link formalism incorporates oll nonperturbative dynamics into nonlocal correlators. The constructive formalism introduced by the author describes distributions normalized to an intrinsic property of the nucleon, namely, the currents specified in the Bakker-Leader-Trueman sum rule. The connection between these two approaches can be explored in the process dependence of single-spin asymmetries in various hard-scattering processes. The study of the SU(2) Weyl-Dirac equation in spherical coordinates allows typical Wilson operators that determine this process dependence to be evaluated in the coordinate gauge.

Dennis Sivers

2007-11-20T23:59:59.000Z

207

Large single domain 123 material produced by seeding with single crystal rare earth barium copper oxide single crystals  

DOE Patents [OSTI]

A method of fabricating bulk YBa.sub.2 Cu.sub.3 O.sub.x where compressed powder oxides and/or carbonates of Y and Ba and Cu present in mole ratios to form YBa.sub.2 Cu.sub.3 O.sub.x are heated in the presence of a Nd.sub.1+x Ba.sub.2-x Cu.sub.3 O.sub.y seed crystal to a temperature sufficient to form a liquid phase in the YBa.sub.2 Cu.sub.3 O.sub.x while maintaining the seed crystal solid. The materials are slowly cooled to provide a YBa.sub.2 Cu.sub.3 O.sub.x material having a predetermined number of domains between 1 and 5. Crack-free single domain materials can be formed using either plate shaped seed crystals or cube shaped seed crystals with a pedestal of preferential orientation material.

Todt, Volker (Lemont, IL); Miller, Dean J. (Darien, IL); Shi, Donglu (Oak Park, OH); Sengupta, Suvankar (Columbus, OH)

1998-01-01T23:59:59.000Z

208

85,000-GPM, single-stage, single-suction LMFBR intermediate centrifugal pump  

SciTech Connect (OSTI)

The mechanical and hydraulic design features of the 85,000-gpm, single-stage, single-suction pump test article, which is designed to circulate liquid-sodium coolant in the intermediate heat-transport system of a Large-Scale Liquid Metal Fast Breeder Reactor (LS-LMFBR), are described. The design and analytical considerations used to satisfy the pump performance and operability requirements are presented. The validation of pump hydraulic performance using a hydraulic scale-model pump is discussed, as is the featute test for the mechanical-shaft seal system.

Fair, C.E.; Cook, M.E. Huber, K.A.; Rohde, R.

1983-01-01T23:59:59.000Z

209

Adaptive Power Control for Single and Multiuser Opportunistic Systems  

E-Print Network [OSTI]

In this dissertation, adaptive power control for single and multiuser opportunistic systems is investigated. First, a new adaptive power-controlled diversity combining scheme for single user systems is proposed, upon which is extended...

Nam, Sung Sik

2010-07-14T23:59:59.000Z

210

Single nucleotide polymorphism discovery in elite north american potato germplasm  

E-Print Network [OSTI]

Single nucleotide polymorphism discovery in elite north american potato germplasm Hamilton et al;RESEARCH ARTICLE Open Access Single nucleotide polymorphism discovery in elite north american potato breeding approaches in potato rely almost entirely on phenotypic evaluations; molecular markers

Douches, David S.

211

Multi-element superconducting nanowire single photon detectors  

E-Print Network [OSTI]

Single-photon-detector arrays can provide unparalleled performance and detailed information in applications that require precise timing and single photon sensitivity. Such arrays have been demonstrated using a number of ...

Dauler, Eric A. (Eric Anthony), 1980-

2009-01-01T23:59:59.000Z

212

Photoelectron Spectroscopy of Doubly and Singly Charged Group...  

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

Doubly and Singly Charged Group VIB Dimetalate Anions: M2O72-, MM'072-, and M207- (M, M'Cr, Mo, W Photoelectron Spectroscopy of Doubly and Singly Charged Group VIB Dimetalate...

213

Single-electron inverter C. P. Heij,a)  

E-Print Network [OSTI]

Single-electron inverter C. P. Heij,a) P. Hadley, and J. E. Mooij Applied Physics and DIMES, Delft for publication 8 December 2000 A single-electron inverter was fabricated that switches from a high output of the inverter, the two single-electron transistors that make up the inverter must exhibit voltage gain. Voltage

214

Cognitive Single Carrier Systems: Joint Impact of Multiple Licensed Transceivers  

E-Print Network [OSTI]

Cognitive Single Carrier Systems: Joint Impact of Multiple Licensed Transceivers Kyeong Jin Kim of interference from multiple licensed transceivers on cognitive underlay single carrier systems is examined, and 3) interference power from the primary transmitters. For this cognitive underlay single carrier

Elkashlan, Maged

215

Genotyping of single nucleotide polymorphism using model-based clustering  

E-Print Network [OSTI]

Genotyping of single nucleotide polymorphism using model-based clustering H. Fujisawa1 , S. Eguchi1-8455, Japan ABSTRACT Motivation: Single nucleotide polymorphisms have been investigated as biological markers Single nucleotide polymorphisms (SNPs) have been in- vestigated as biological markers to identify

Eguchi, Shinto

216

The utility of single nucleotide polymorphisms in inferences of  

E-Print Network [OSTI]

The utility of single nucleotide polymorphisms in inferences of population history Robb T of Washington, Seattle, WA 98195, USA Single nucleotide polymorphisms (SNPs) represent the most widespread type discuss one emerging marker of great relevance to historical demography: single nucleotide polymorphisms

Brumfield, Robb T.

217

Structural Location of Disease-associated Single-nucleotide Polymorphisms  

E-Print Network [OSTI]

Structural Location of Disease-associated Single-nucleotide Polymorphisms Nathan O. Stitziel1 , Yan-synonymous single-nucleotide polymorphism (nsSNP) of genes introduces amino acid changes to proteins, and plays reserved Keywords: single-nucleotide polymorphism; alpha shape; hidden Markov model; surface pockets

Pervouchine, Dmitri D.

218

3D RECONSTRUCTION FROM A SINGLE IMAGE Diego Rother  

E-Print Network [OSTI]

3D RECONSTRUCTION FROM A SINGLE IMAGE By Diego Rother and Guillermo Sapiro IMA Preprint Series. 1 3D Reconstruction from a Single Image Diego Rother and Guillermo Sapiro Abstract-- A probabilistic framework for 3D object reconstruction from a single image is introduced in this work. First

219

Evidence for production of single top quarks  

SciTech Connect (OSTI)

We present first evidence for the production of single top quarks in the D0 detector at the Fermilab Tevatron p{bar p} collider. The standard model predicts that the electroweak interaction can produce a top quark together with an antibottom quark or light quark, without the antiparticle top quark partner that is always produced from strong coupling processes. Top quarks were first observed in pair production in 1995, and since then, single top quark production has been searched for in ever larger datasets. In this analysis, we select events from a 0.9 fb{sup -1} dataset that have an electron or muon and missing transverse energy from the decay of a W boson from the top quark decay, and two, three, or four jets, with one or two of the jets identified as originating from a b hadron decay. The selected events are mostly backgrounds such as W+jets and t{bar t} events, which we separate from the expected signals using three multivariate analysis techniques: boosted decision trees, Bayesian neural networks, and matrix element calculations. A binned likelihood fit of the signal cross section plus background to the data from the combination of the results from the three analysis methods gives a cross section for single top quark production of {sigma}(p{bar p} {yields} tb + X, tqb + X) = 4.7 {+-} 1.3 pb. The probability to measure a cross section at this value or higher in the absence of signal is 0.014%, corresponding to a 3.6 standard deviation significance. The measured cross section value is compatible at the 10% level with the standard model prediction for electroweak top quark production. We use the cross section measurement to directly determine the Cabibbo-Kobayashi-Maskawa quark mixing matrix element that describes the Wtb coupling and find |V{sub tb}f{sub 1}{sup L}| = 1.31{sub -0.21}{sup +0.25}, where f{sub 1}{sup L} is a generic vector coupling. This model-independent measurement translates into 0.68 < |V{sub tb}| {le} 1 at the 95% C.L. in the standard model.

Abazov, V.M.; /Dubna, JINR; Abbott, B.; /Oklahoma U.; Abolins, M.; /Michigan State U.; Acharya, B.S.; /Tata Inst.; Adams, M.; /Illinois U., Chicago; Adams, T.; /Florida State U.; Aguilo, E.; /Simon Fraser U.; Ahn, S.H.; /Korea U., KODEL; Ahsan, M.; /Kansas State U.; Alexeev, G.D.; /Dubna, JINR; Alkhazov, G.; /St. Petersburg, INP /Michigan U.

2008-03-01T23:59:59.000Z

220

Bacterial protein complexes studied by single-molecule imaging and single-cell micromanipulation techniques in microfluidic devices  

E-Print Network [OSTI]

Biological systems of bacteria were investigated at the single-cell and single-molecule level. Additionally, aspects of the techniques employed were studied. A unifying theme in each project is the reliance on optical ...

Reuter, Marcel

2010-06-28T23:59:59.000Z

Note: This page contains sample records for the topic "nanoclusters out-perform single" 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

Fabrication of single crystalline, uniaxial single domain Co nanowire arrays with high coercivity  

SciTech Connect (OSTI)

Whilst Co nanorods with high coercivity were synthesized during recent years, they did not achieve the same results as for Co nanowires embedded in solid templates. In the present work, Co nanowire arrays (NWAs) with high coercivity were successfully fabricated in porous aluminum oxide template under optimum conditions by using pulsed ac electrodeposition technique. Magnetic properties and crystalline characteristics of the nanowires were investigated by hysteresis loop measurements, first-order reversal curve (FORC) analysis, X-ray diffraction (XRD), and selected area electron diffraction (SAED) patterns. Hysteresis loop measurements showed high coercivity of about 4.8 kOe at room temperature together with optimum squareness of 1, resulting in an increase of the previous maximum coercivity for Co NWAs up to 45%. XRD and SAED patterns revealed a single crystalline texture along the [0002] direction, indicating the large magnetocrystalline anisotropy. On the other hand, FORC analysis confirmed a single domain structure for the Co NWAs. In addition, the reversal mechanism of the single crystalline, single domain Co NWAs was studied which resulted in the fixed easy axis with a coherent rotation. Accordingly, these nanowires might offer promising applications in high density bit patterned media and low power logic devices.

Ramazani, A., E-mail: rmzn@kashanu.ac.ir; Almasi Kashi, M. [Department of Physics, University of Kashan, Kashan 87317-51167 (Iran, Islamic Republic of); Institute of Nanoscience and Nanotechnology, University of Kashan, Kashan 87317-51167 (Iran, Islamic Republic of); Montazer, A. H. [Institute of Nanoscience and Nanotechnology, University of Kashan, Kashan 87317-51167 (Iran, Islamic Republic of)

2014-03-21T23:59:59.000Z

222

Halide electroadsorption on single crystal surfaces  

SciTech Connect (OSTI)

The structure and phase behavior of halides have been investigated on single crystals of Ag and Au using synchrotron x-ray scattering techniques. The adlayer coverages are potential dependent. For all halides studied the authors found that with increasing potential, at a critical potential, a disordered adlayer transforms into an ordered structure. Often these ordered phases are incommensurate and exhibit potential-dependent lateral separations (electrocompression). The authors have analyzed the electrocompression in terms of a model which includes lateral interactions and partial charge. A continuous compression is not observed for Br on Ag(100). Rather, they find that the adsorption is site-specific (lattice gas) in both the ordered and disordered phases. The coverage increases with increasing potential and at a critical potential the disordered phase transforms to a well-ordered commensurate structure.

Ocko, B.M. [Brookhaven National Lab., Upton, NY (United States). Dept. of Physics; Wandlowski, T. [Univ. of Ulm (Germany). Dept. of Electrochemistry

1997-07-01T23:59:59.000Z

223

Single particle microscopy with nanometer resolution  

E-Print Network [OSTI]

We experimentally demonstrate nanoscopic transmission microscopy relying on a deterministic single particle source. This increases the signal-to-noise ratio with respect to conventional microscopy methods, which employ Poissonian particle sources. We use laser-cooled ions extracted from a Paul trap, and demonstrate remote imaging of transmissive objects with a resolution of 8.6 $\\pm$ 2.0nm and a minimum two-sample deviation of the beam position of 1.5nm. Detector dark counts can be suppressed by 6 orders of magnitudes through gating by the extraction event. The deterministic nature of our source enables an information-gain driven approach to imaging. We demonstrate this by performing efficient beam characterization based on a Bayes experiment design method.

Georg Jacob; Karin Groot-Berning; Sebastian Wolf; Stefan Ulm; Luc Couturier; Ulrich G. Poschinger; Ferdinand Schmidt-Kaler; Kilian Singer

2014-05-26T23:59:59.000Z

224

Observation of single top at CDF  

SciTech Connect (OSTI)

We present observation of electroweak single top quark production using 3.2 fb{sup -1} of data collected by the CDF experiment. Candidate events are selected for further classification by five parallel analysis techniques: one using a likelihood discriminant, one using a matrix-element discriminant, one using decision trees, one using a neural network, and one using a complementary dataset. The results of these analyses are combined in order to improve the expected sensitivity. The significance of the observed data is 5.0 standard deviations, and the expected sensitivity is in excess of 5.9 standard deviations. We also present the most current value of the CKM matrix element |V{sub tb}|.

Casal, Bruno; /Cantabria Inst. of Phys.

2009-01-01T23:59:59.000Z

225

Observation of Single Top Quark Production  

SciTech Connect (OSTI)

We report first observation of the electroweak production of single top quarks in p{bar p} collisions at {radical}s = 1.96 TeV based on 2.3 fb{sup ?1} of data collected by the D0 detector at the Fermilab Tevatron Collider. Using events containing an isolated electron or muon and missing transverse energy, together with jets originating from the fragmentation of b quarks, we measure a cross section of {sigma}(p{bar p} {yields} tb + X, tqb + X) = 3.94 {+-} 0.88 pb. The probability to measure a cross section at this value or higher in the absence of signal is 2.5 x 10{sup ?7}, corresponding to a 5.0 standard deviation significance for the observation.

Abazov, V.M.; /Dubna, JINR; Abbott, B.; /Oklahoma U.; Abolins, M.; /Michigan State U.; Acharya, Bannanje Sripath; /Tata Inst.; Adams, M.; /Illinois U., Chicago; Adams, T.; /Florida State U.; Aguilo, E.; /Alberta U. /Simon Fraser U. /York U., Canada /McGill U.; Ahsan, M.; /Kansas State U.; Alexeev, G.D.; /Dubna, JINR; Alkhazov, Georgiy D.; /St. Petersburg, INP; Alton, Andrew K.; /Michigan State U. /Northeastern U.

2009-03-01T23:59:59.000Z

226

Single Interval Rnyi Entropy At Low Temperature  

E-Print Network [OSTI]

In this paper, we calculate the R\\'enyi entropy of one single interval on a circle at finite temperature in 2D CFT. In the low temperature limit, we expand the thermal density matrix level by level in the vacuum Verma module, and calculate the first few leading terms in $e^{-\\pi/TL}$ explicitly. On the other hand, we compute the same R\\'enyi entropy holographically. After considering the dependence of the R\\'enyi entropy on the temperature, we manage to fix the interval-independent constant terms in the classical part of holographic R\\'enyi entropy. We furthermore extend the analysis in Xi Dong's paper to higher orders and find exact agreement between the results from field theory and bulk computations in the large central charge limit. Our work provides another piece of evidence to support holographic computation of R\\'enyi entropy in AdS$_3$/CFT$_2$ correspondence, even with thermal effect.

Bin Chen; Jie-qiang Wu

2015-01-06T23:59:59.000Z

227

Monitoring conservative retrofits in single family buildings  

SciTech Connect (OSTI)

This study has provided detailed before-and-after information on the ambient and comfort conditions in nine single family buildings, and on the energy consumption of those buildings, for one or more energy conservation retrofits. The data were recorded in such a manner that as well as being able to determine the savings from the retrofits and the influence these retrofits have on the comfort conditions of the residence, the effects of the retrofits on time-of-day usage are also determinable. The following are included in appendices: a table of participant's names, site addresses and retrofit; significant dates and appropriate comments; a day of data and an annotated data set; pre-retrofit and post-retrofit audit data sheets; and usage history.

Richardson, C.S.

1992-12-06T23:59:59.000Z

228

Rapid Spontaneous Assembly of Single Component Liposomes  

E-Print Network [OSTI]

Can single component bilayer forming surfactants spontaneously assemble to form unilamellar vesicles of a definite size ? Although possible by Helfrich's theory, this has not been observed without external forcing. We show two variants of a method where this is possible without any input of external energy, with the time of synthesis reduced to as less as 15 minutes. It is shown that the average diameter of the liposomes formed is intrinsic and depends only on the temperature and the lipid type, eliminating kinetic effects normally observed. This thus can be a candidate mechanism for vesicle size selection in pre-biotic conditions. The method may also be suitable to study time-resolved studies of micelle to vesicle transition.

P. Sunthar; Sopan M. Phapal

2015-01-28T23:59:59.000Z

229

Solar cell structure incorporating a novel single crystal silicon material  

DOE Patents [OSTI]

A novel hydrogen rich single crystal silicon material having a band gap energy greater than 1.1 eV can be fabricated by forming an amorphous region of graded crystallinity in a body of single crystalline silicon and thereafter contacting the region with atomic hydrogen followed by pulsed laser annealing at a sufficient power and for a sufficient duration to recrystallize the region into single crystal silicon without out-gassing the hydrogen. The new material can be used to fabricate semiconductor devices such as single crystal silicon solar cells with surface window regions having a greater band gap energy than that of single crystal silicon without hydrogen.

Pankove, Jacques I. (Princeton, NJ); Wu, Chung P. (Trenton, NJ)

1983-01-01T23:59:59.000Z

230

PHASE I SINGLE CELL ELECTROLYZER TEST RESULTS  

SciTech Connect (OSTI)

This document reports the results of Phase I Single Cell testing of an SO{sub 2}-Depolarized Water Electrolyzer. Testing was performed primarily during the first quarter of FY 2008 at the Savannah River National Laboratory (SRNL) using an electrolyzer cell designed and built at SRNL. Other facility hardware were also designed and built at SRNL. This test further advances this technology for which work began at SRNL in 2005. This research is valuable in achieving the ultimate goal of an economical hydrogen production process based on the Hybrid Sulfur (HyS) Cycle. The focus of this work was to conduct single cell electrolyzer tests to further develop the technology of SO{sub 2}-depolarized electrolysis as part of the HyS Cycle. The HyS Cycle is a hybrid thermochemical cycle that may be used in conjunction with advanced nuclear reactors or centralized solar receivers to produce hydrogen by water-splitting. Like all other sulfur-based cycles, HyS utilizes the high temperature thermal decomposition of sulfuric acid to produce oxygen and regenerate sulfur dioxide. The unique aspect of HyS is the generation of hydrogen in a water electrolyzer that is operated under conditions where dissolved sulfur dioxide depolarizes the anodic reaction, resulting in substantial voltage reduction. Low cell voltage is essential for both thermodynamic efficiency and hydrogen cost. Sulfur dioxide is oxidized at the anode, producing sulfuric acid that is sent to the high temperature acid decomposition portion of the cycle. The electrolyzer cell uses the membrane electrode assembly (MEA) concept. The anode and cathode are formed by spraying platinum containing catalyst on both sides of a Proton Exchange Membrane (PEM). In most testing the material of the PEM was NafionR. The electrolyzer cell active area can be as large as 54.8 cm{sup 2}. Feed to the anode of the electrolyzer is a sulfuric acid solution containing sulfur dioxide. The partial pressure of sulfur dioxide could be varied in the range of 1 to 6 atm (15 to 90 psia). Temperatures could be controlled in the range from ambient to 80 C. Hydrogen generated at the cathode of the cell was collected for the purpose of flow measurement and composition analysis. The test facility proved to be easy to operate, versatile, and reliable.

Steimke, J; Timothy Steeper, T

2008-08-05T23:59:59.000Z

231

Single-shot and single-spot measurement of laser ablation threshold for carbon nanotubes  

E-Print Network [OSTI]

A simple and convenient procedure for single-shot, single-spot ablation threshold measurement has been developed. It is based on the employment of cylindrical lens to obtain elliptical Gaussian laser spot. The ablated spot chords which are parallel to the minor axis were measured across the spot major axis which is proportional to the fluence cross-section thus providing wide range dependence of damaged spot size versus fluence in one spot measurement. For both conventional and new-developed procedures the ablation threshold for typical Nd:YAG laser parameters (1064 nm, 10 ns) has been measured as 50 mJ/cm2 which is one order of magnitude lower than that for a bulk graphite.

Lednev, Vasily N; Obraztsova, Elena D; Kudryashov, Sergey I; Bunkin, Alexey F

2013-01-01T23:59:59.000Z

232

Single-fiber multi-color pyrometry  

DOE Patents [OSTI]

This invention is a fiber-based multi-color pyrometry set-up for real-time non-contact temperature and emissivity measurement. The system includes a single optical fiber to collect radiation emitted by a target, a reflective rotating chopper to split the collected radiation into two or more paths while modulating the radiation for lock-in amplification (i.e., phase-sensitive detection), at least two detectors possibly of different spectral bandwidths with or without filters to limit the wavelength regions detected and optics to direct and focus the radiation onto the sensitive areas of the detectors. A computer algorithm is used to calculate the true temperature and emissivity of a target based on blackbody calibrations. The system components are enclosed in a light-tight housing, with provision for the fiber to extend outside to collect the radiation. Radiation emitted by the target is transmitted through the fiber to the reflective chopper, which either allows the radiation to pass straight through or reflects the radiation into one or more separate paths. Each path includes a detector with or without filters and corresponding optics to direct and focus the radiation onto the active area of the detector. The signals are recovered using lock-in amplification. Calibration formulas for the signals obtained using a blackbody of known temperature are used to compute the true temperature and emissivity of the target. The temperature range of the pyrometer system is determined by the spectral characteristics of the optical components.

Small IV, Ward; Celliers, Peter

2004-01-27T23:59:59.000Z

233

Single, stretched membrane, structural module experiments  

SciTech Connect (OSTI)

This report describes tests done on stretched-membrane heliostats used to reflect solar radiation onto a central receiver. The tests were used to validate prior analysis and mathematical models developed to describe module performance. The modules tested were three meters in diameter and had reflective polymer film laminated to the membrane. The frames were supported at three points equally spaced around the ring. Three modules were pneumatically attached with their weight suspended at the bottom support, two were pneumatically attached with their weight suspended from the upper mounts, and one was rigidly attached with its weight suspended at the bottom mount. By varying the membrane tension we could simulate a uniform wind loading normal to the mirror's surface. A video camera 15+ meters away from the mirror recorded the virtual image of a target grid as reflected by the mirrors' surface. The image was digitized and stored on a microcomputer. Using the law of reflection and analytic geometry, we computed the surface slopes of a sampling of points on the surface. The dominant module response was consistent with prior SERI analyses. The simple analytical model is quite adequate for designing and sizing single-membrane modules if the initial imperfections and their amplification are appropriately controlled. To avoid potential problems resulting from the fundamentally n = 2 deformation phenomena, we advise using either relatively stiffer ring frames or more than three support points.

Wood, R.L.

1986-02-01T23:59:59.000Z

234

Single-fiber multi-color pyrometry  

DOE Patents [OSTI]

This invention is a fiber-based multi-color pyrometry set-up for real-time non-contact temperature and emissivity measurement. The system includes a single optical fiber to collect radiation emitted by a target, a reflective rotating chopper to split the collected radiation into two or more paths while modulating the radiation for lock-in amplification (i.e., phase-sensitive detection), at least two detectors possibly of different spectral bandwidths with or without filters to limit the wavelength regions detected and optics to direct and focus the radiation onto the sensitive areas of the detectors. A computer algorithm is used to calculate the true temperature and emissivity of a target based on blackbody calibrations. The system components are enclosed in a light-tight housing, with provision for the fiber to extend outside to collect the radiation. Radiation emitted by the target is transmitted through the fiber to the reflective chopper, which either allows the radiation to pass straight through or reflects the radiation into one or more separate paths. Each path includes a detector with or without filters and corresponding optics to direct and focus the radiation onto the active area of the detector. The signals are recovered using lock-in amplification. Calibration formulas for the signals obtained using a blackbody of known temperature are used to compute the true temperature and emissivity of the target. The temperature range of the pyrometer system is determined by the spectral characteristics of the optical components.

Small, IV, Ward (Livermore, CA); Celliers, Peter (Berkeley, CA)

2000-01-01T23:59:59.000Z

235

Single molecule detection using charge-coupled device array technology  

SciTech Connect (OSTI)

A technique for the detection of single fluorescent chromophores in a flowing stream is under development. This capability is an integral facet of a rapid DNA sequencing scheme currently being developed by Los Alamos National Laboratory. In previous investigations, the detection sensitivity was limited by the background Raman emission from the water solvent. A detection scheme based on a novel mode of operating a Charge-Coupled Device (CCD) is being developed which should greatly enhance the discrimination between fluorescence from a single molecule and the background Raman scattering from the solvent. Register shifts between rows in the CCD are synchronized with the sample flow velocity so that fluorescence from a single molecule is collected in a single moving charge packet occupying an area approaching that of a single pixel while the background is spread evenly among a large number of pixels. Feasibility calculations indicate that single molecule detection should be achieved with an excellent signal-to-noise ratio.

Denton, M.B.

1992-07-29T23:59:59.000Z

236

Clinical experience with a multifunctional, flexible surgery system for endolumenal, single-port, and NOTES procedures  

E-Print Network [OSTI]

for endolumenal, single-port, and NOTES procedures SantiagoAbstract Background Single-port and incisionless surgicalendolumenal, single-port, transvaginal, or transgastric)

2011-01-01T23:59:59.000Z

237

Ultrafast electrical control of a resonantly driven single photon source  

SciTech Connect (OSTI)

We demonstrate generation of a pulsed stream of electrically triggered single photons in resonance fluorescence, by applying high frequency electrical pulses to a single quantum dot in a p-i-n diode under resonant laser excitation. Single photon emission was verified, with the probability of multiple photon emission reduced to 2.8%. We show that despite the presence of charge noise in the emission spectrum of the dot, resonant excitation acts as a filter to generate narrow bandwidth photons.

Cao, Y. [Toshiba Research Europe Limited, Cambridge Research Laboratory, 208 Science Park, Milton Road, Cambridge CB4 0GZ (United Kingdom); Controlled Quantum Dynamics Group, Imperial College London, London SW7 2AZ (United Kingdom); Bennett, A. J., E-mail: anthony.bennett@crl.toshiba.co.uk; Ellis, D. J. P.; Shields, A. J. [Toshiba Research Europe Limited, Cambridge Research Laboratory, 208 Science Park, Milton Road, Cambridge CB4 0GZ (United Kingdom); Farrer, I.; Ritchie, D. A. [Cavendish Laboratory, University of Cambridge, JJ Thomson Avenue, Cambridge CB3 0HE (United Kingdom)

2014-08-04T23:59:59.000Z

238

Nonlinear Dynamics of Single Bunch Instability  

SciTech Connect (OSTI)

A nonlinear equation is derived that governs the evolution of the amplitude of unstable oscillations with account of quantum diffusion effects due to the synchrotron radiation. Numerical solutions to this equation predict a variety of possible scenarios of nonlinear evolution of the instability some of which are in good qualitative agreement with experimental observations. Microwave single bunch instability in circular accelerators has been observed in many machines. The instability usually arises when the number of particles in the bunch exceeds some critical value, Nc, which varies depending on the parameters of the accelerating regime. Recent observations on the SLC damping rings at SLAC with a new low-impedance vacuum chamber revealed new interesting features of the instability. In some cases, after initial exponential growth, the instability eventually saturated at a level that remained constant through the accumulation cycle. In other regimes, relaxation-type oscillations were measured in nonlinear phase of the instability. In many cases, the instability was characterized by a frequency close to the second harmonic of the synchrotron oscillations. Several attempts have been made to address the nonlinear stage of the instability based on either computer simulations or some specific assumptions regarding the structure of the unstable mode. An attempt of a more general consideration of the problem is carried out in this paper. We adopt an approach recently developed in plasma physics for analysis of nonlinear behavior of weakly unstable modes in dynamic systems. Assuming that the growth rate of the instability is much smaller than its frequency, we find a time dependent solution to Vlasov equation and derive an equation for the complex amplitude of the oscillations valid in the nonlinear regime. Numerical solutions to this equation predict a variety of possible scenarios of nonlinear evolution of the instability some of which are in good qualitative agreement with experimental observations.

Stupakov, G.V.; /SLAC; Breizman, B.N.; Pekker, M.S.; /Texas U.

2011-09-09T23:59:59.000Z

239

Self-assembling functionalized single-walled carbon nanotubes  

E-Print Network [OSTI]

W. Wang (2007). "Storage of hydrogen in single-walled carbongravimetric storage capacity of hydrogen in a diamond-shapedfor energy storage applications such as hydrogen absorption.

Gao, Yan

2011-01-01T23:59:59.000Z

240

Single-Machine Two-Agent Scheduling Problems with ...  

E-Print Network [OSTI]

Jan 24, 2014 ... Abstract: We address a class of deterministic scheduling problems in which two agents compete for the usage of a single machine. The agents...

Gaia Nicosia

2014-01-24T23:59:59.000Z

Note: This page contains sample records for the topic "nanoclusters out-perform single" 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

A hybrid Lagrangean metaheuristic for single machine scheduling ...  

E-Print Network [OSTI]

Aug 8, 2014 ... A hybrid Lagrangean metaheuristic for single machine scheduling problem with sequence-dependent setup times and due dates.

Thiago Henrique Nogueira

2014-08-08T23:59:59.000Z

242

A Method for Evaluating Fire After Earthquake Scenarios for Single...  

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

Evaluating Fire After Earthquake Scenarios for Single Buildings Authors: Elizabeth J. Kelly and Raymond N. Tell Intended Use: Handout for DOE Natural Phenomena Hazards Workshop,...

243

A Method for Evaluating Fire after Earthquake Scenarios for Single...  

Office of Environmental Management (EM)

Method for Evaluating Fire After Earthquake Scenarios for Single Buildings Elizabeth J. Kelly and Raymond N. Tell, LANL U.S. Department of Energy Natural Phenomena Hazards Workshop...

244

aligned single wall: Topics by E-print Network  

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

Page Topic Index 1 Printed Multilayer Superstructures of Aligned Single-Walled Carbon Materials Science Websites Summary: Printed Multilayer Superstructures of Aligned...

245

Electromagnetic Interference (EMI) Shielding of Single-Walled Carbon  

E-Print Network [OSTI]

Electromagnetic Interference (EMI) Shielding of Single-Walled Carbon Nanotube Epoxy Composites Ning (SWNT)-polymer composites have been fabricated to evaluate the electromagnetic interference (EMI

Gao, Hongjun

246

Gas-Phase Synthesis of Singly and Multiply Charged Polyoxovanadate...  

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

oxide clusters for subsequent investigations of structure and reactivity. Citation: Al Hasan NM, GE Johnson, and J Laskin.2013."Gas-Phase Synthesis of Singly and Multiply Charged...

247

Single-step conversion of cellulose to 5-hydroxymethylfurfural...  

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

of HMF directly from raw natural cellulose represents the last major barrier toward the development of a sustainable HMF platform. Here we report an unprecedented single-step...

248

Self-assembling functionalized single-walled carbon nanotubes  

E-Print Network [OSTI]

scale synthesis of carbon nanotubes." Nature, Vol.358, 220-Ropes of Metallic Carbon Nanotubes." Science, Vol.273(5274),of single- wall carbon nanotubes. Process, product, and

Gao, Yan

2011-01-01T23:59:59.000Z

249

Atomistic Study of the Melting Behavior of Single Crystalline...  

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

and 110-oriented lateral facets, respectively. Citation: Wang Z, X Zu, F Gao, and WJ Weber.2007."Atomistic Study of the Melting Behavior of Single Crystalline Wurtzite Gallium...

250

Optimization Online - Lower Bounding Procedures for the Single ...  

E-Print Network [OSTI]

Nov 30, 2014 ... Lower Bounding Procedures for the Single Allocation Hub Location Problem. Borzou Rostami(brostami ***at*** mathematik.tu-dortmund.de)

Borzou Rostami

2014-11-30T23:59:59.000Z

251

Globally Optimal Solutions for Large Single-Row Facility Layout ...  

E-Print Network [OSTI]

May 22, 2006 ... This paper is concerned with the single-row facility layout problem (SRFLP). ...... and ATLAS software used to obtain the computational results.

2006-05-22T23:59:59.000Z

252

Environmental Genomics Reveals a Single-Species Ecosystem Deep Earth  

E-Print Network [OSTI]

Environmental Genomics Reveals a Single-Species EcosystemTechnology Program, DOE Joint Genomics Institute, Berkeley,and Environmental Research, Genomics:GTL program through

Arkin, Adam P.

2014-01-01T23:59:59.000Z

253

Standard Work Specifications for Single-Family Home Energy Upgrades...  

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

Energy Upgrades Summary (Fact Sheet), Guidelines For Home Energy Professionals, Energy Efficiency & Renewable Energy (EERE) Standard Work Specifications for Single-Family Home...

254

Method for producing labeled single-stranded nucleic acid probes  

DOE Patents [OSTI]

Disclosed is a method for the introduction of unidirectional deletions in a cloned DNA segment. More specifically, the method comprises providing a recombinant DNA construct comprising a DNA segment of interest inserted in a cloning vector, the cloning vector having an f1 endonuclease recognition sequence adjacent to the insertion site of the DNA segment of interest. The recombinant DNA construct is then contacted with the protein pII encoded by gene II of phage f1 thereby generating a single-stranded nick. The nicked DNA is then contacted with E. coli Exonuclease III thereby expanding the single-stranded nick into a single-stranded gap. The single-stranded gapped DNA is then contacted with a single-strand-specific endonuclease thereby producing a linearized DNA molecule containing a double-stranded deletion corresponding in size to the single-stranded gap. The DNA treated in this manner is then incubated with DNA ligase under conditions appropriate for ligation. Also disclosed is a method for producing single-stranded DNA probes. In this embodiment, single-stranded gapped DNA, produced as described above, is contacted with a DNA polymerase in the presence of labeled nucleotides to fill in the gap. This DNA is then linearized by digestion with a restriction enzyme which cuts outside the DNA segment of interest. The product of this digestion is then denatured to produce a labeled single-stranded nucleic acid probe.

Dunn, John J. (Bellport, NY); Quesada, Mark A. (Middle Island, NY); Randesi, Matthew (Upton, NY)

1999-10-19T23:59:59.000Z

255

Self-assembling functionalized single-walled carbon nanotubes  

E-Print Network [OSTI]

Single-walled carbon nanotubes Carbon nanotubes (CNTs) arescale synthesis of carbon nanotubes." Nature, Vol.358, 220-Ropes of Metallic Carbon Nanotubes." Science, Vol.273(5274),

Gao, Yan

2011-01-01T23:59:59.000Z

256

FROM: KYLE E. MCSLARROW SUBJEcr A Single Integrated IT Infrastructure...  

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

KYLE E. MCSLARROW SUBJEcr A Single Integrated IT Infrastructure for the Department The Department has made great progress in achieving efficiencies and economies of scale in...

257

Single-Molecule Dynamics Reveals Cooperative Binding-Folding...  

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

Molecule Dynamics Reveals Cooperative Binding-Folding in Protein Recognition . Single-Molecule Dynamics Reveals Cooperative Binding-Folding in Protein Recognition . Abstract: The...

258

Analysis of mixed integer programming formulations for single ...  

E-Print Network [OSTI]

four different paradigms for single machine scheduling problems (SMSP) with se- ...... Automatic Control, IEEE Transactions on 38(7):10661079. Luh P, Gou L,...

2014-07-15T23:59:59.000Z

259

Towards quantitative single cell analysis using optical tweezers and microfluidics.  

E-Print Network [OSTI]

??Experiments on single cells have the potential to uncover information that would not be possible to obtain with traditional biological techniques, which only reflect the (more)

Eriksson, Emma

2009-01-01T23:59:59.000Z

260

Single-Commodity Robust Network Design with Finite and Hose ...  

E-Print Network [OSTI]

that any traffic demand from a given uncertainty set can be satisfied by a feasi- ... and energy distribution networks also ship a single commodity, but since we do...

2015-01-26T23:59:59.000Z

Note: This page contains sample records for the topic "nanoclusters out-perform single" 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

Single-photon quantum router with multiple output ports  

E-Print Network [OSTI]

We study the multi-channel quantum routing of the single photons in a waveguide-emitter system. The channels are composed by the waveguides and are connected by intermediate two-level emitters. By adjusting the intermediate emitters, the output channels of the input single photons can be controlled. This is demonstrated for the cases of one output channel, two output channels and the generic N output channels. The results show that the multi-channel quantum routing of single photons can be well achieved in present system. This sheds light on the experimental realization of quantum routing of single photons.

Wei-Bin Yan; Heng Fan

2013-11-26T23:59:59.000Z

262

Cascade design of single input single output systems using H? and quantitative feedback theory methodologies  

E-Print Network [OSTI]

. It is shown using QFT methodology that there aren?t any advantages gained in the low frequencies with the use of cascaded design. In effect it is concluded that if the design is properly executed a single loop controller closed from the output to the input... In the fourth part the H? methodology was used to design a two loop control structure. The idea was to compare this design to the QFT design. It was seen that H? generated redundant controllers and pre filters...

Lal, Mayank

2005-02-17T23:59:59.000Z

263

The Single Pass Multi-component Harvester  

SciTech Connect (OSTI)

The authors are solely responsible for the content of this technical presentation. The technical presentation does not necessarily reflect the official position of the American Society of Agricultural Engineers (ASAE), and its printing and distribution does not constitute an endorsement of views which may be expressed. Technical presentations are not subject to the formal peer review process by ASAE editorial committees; therefore, they are not to be presented as refereed publications. Citation of this work should state that it is from an ASAE meeting paper. EXAMPLE: Author's Last Name, Initials. 2004. Title of Presentation. ASAE Paper No. 04xxxx. St. Joseph, Mich.: ASAE. For information about securing permission to reprint or reproduce a technical presentation, please contact ASAE at hq@asae.org or 269-429-0300 (2950 Niles Road, St. Joseph, MI 49085-9659 USA). Abstract. In order to meet the U. S. governments goal of supplementing the energy available from petroleum by increasing the production of energy from renewable resources, increased production of bioenergy has become one of the new goals of the United States government and our society. U.S. Executive Orders and new Federal Legislation have mandated changes in government procedures and caused reorganizations within the government to support these goals. The Biomass Research and Development Initiative is a multi-agency effort to coordinate and accelerate all U.S. Federal biobased products and bioenergy research and development. The Initiative is managed by the National Biomass Coordination Office, which is staffed by both the DOE and the USDA. One of the most readily available sources of biomass from which to produce bioenergy is an agricultural crop residue, of which straw from small grains is the most feasible residue with which to start. For the straw residue to be used its collection must be energy efficient and its removal must not impact the sustainability of the growing environment. In addition, its collection must be economically advantageous to the producer. To do all that, a single pass multi-component harvester system is most desirable. Results from our first prototype suggest that current combines probably do adequate threshing and that a separate chassis can be developed that does additional separation and that is economically feasible.

Reed Hoskinson; John R. Hess

2004-08-01T23:59:59.000Z

264

Electrically driven single photon emission from a CdSe/ZnSSe single quantum dot at 200?K  

SciTech Connect (OSTI)

High temperature operation of an electrically driven single photon emitter based on a single epitaxial quantum dot is reported. CdSe/ZnSSe/MgS quantum dots are embedded into a p-i-n diode architecture providing almost background free excitonic and biexcitonic electroluminescence from individual quantum dots through apertures in the top contacts. Clear antibunching with g{sup 2}(??=?0)?=?0.28??0.20 can be tracked up to T?=?200?K, representing the highest temperature for electrically triggered single photon emission from a single quantum dot device.

Quitsch, Wolf; Kmmell, Tilmar; Bacher, Gerd [Werkstoffe der Elektrotechnik and CENIDE, Universitt Duisburg-Essen, Bismarckstrae 81, 47057 Duisburg (Germany); Gust, Arne; Kruse, Carsten; Hommel, Detlef [Institut fr Festkrperphysik, Universitt Bremen, Otto-Hahn-Allee 1, 28334 Bremen (Germany)

2014-09-01T23:59:59.000Z

265

Conductance-Controlled Point Functionalization of Single-Walled Carbon Nanotubes  

E-Print Network [OSTI]

of Single-Walled Carbon Nanotubes Brett R. Goldsmith, 1 Johnof Single-Walled Carbon Nanotubes Brett R. Goldsmith et al.single-walled carbon nanotubes (SWNTs) to fabricate single-

Collins, Philip G

2007-01-01T23:59:59.000Z

266

The Effects of Single Vacancy Defects and Lithium on Single-Walled Carbon Nanotubes Ross Kistler, Loyola University Maryland, 2011 SURF Fellow  

E-Print Network [OSTI]

The Effects of Single Vacancy Defects and Lithium on Single-Walled Carbon Nanotubes Ross Kistler with a single vacancy with a Li atom. Procedure First, DMol3 was used to create a simulation of a (5,5) SWCNT. A single C atom was removed from the structure, creating a defect known as a single vacancy. Geometric

Li, Mo

267

A Cascade Multilevel Inverter Using a Single DC Source  

E-Print Network [OSTI]

A Cascade Multilevel Inverter Using a Single DC Source Zhong Du1, Leon M. Tolbert2 3, John N inverter can be implemented using only a single DC power source and capacitors. A standard cascade multilevel inverter requires DC sources for 2 + 1 levels. Without requiring transformers, the scheme proposed

Tolbert, Leon M.

268

Demonstration of Electrical Dispersion Compensation of Single Sideband Optical Transmission  

E-Print Network [OSTI]

Demonstration of Electrical Dispersion Compensation of Single Sideband Optical Transmission P. M describe a demonstration of electrical chromatic dispersion compensation of 10 Gb/s single sideband optical signals. Eye-opening and bit error rates of less than 10-10 were achieved after compensation of -2040 ps

Haddadi, Hamed

269

INTRODUCTION The granular mechanics of plastics within a single-  

E-Print Network [OSTI]

INTRODUCTION The granular mechanics of plastics within a single- screw extruder has, for the past are transported forward by the action of the extruder screw, assisted by the differ- ence in frictional forces and feed hopper of a single-screw extruder. The method considers each particle in a granular assem- bly

Thompson, Michael

270

Supplementary Material Free energy recovery in single molecule experiments  

E-Print Network [OSTI]

Supplementary Material Free energy recovery in single molecule experiments Single molecule force measurements (experimental setup shown in Fig. S1) can be used to determine free-energy differences between the unfolding process and using the thermodynamic relation revWG = , we can estimate the RNA folding free energy

Ritort, Felix

271

Optical absorption intensity of semiconductor single-wall carbon nanotubes  

E-Print Network [OSTI]

Optical absorption intensity of semiconductor single-wall carbon nanotubes Y. Oyama1 , R. Saito1. The optical absorption intensity is inversely proportional to the diameter in the unit of per carbon atom of single-wall carbon nanotubes (SWNT) synthesized by alcohol CCVD (ACCVD) method and HiPco method [1

Maruyama, Shigeo

272

ORIGINAL ARTICLE Single ferroelectric-domain photovoltaic switch based  

E-Print Network [OSTI]

ORIGINAL ARTICLE Single ferroelectric-domain photovoltaic switch based on lateral BiFeO3 cells Ji serves as a basis for solid-state memory. This phenomenon can also yield an interesting photovoltaic imposed by the ferroelectric polarization vectors. Here, we demonstrate a single-domain photovoltaic

Jo, Moon-Ho

273

Single element changes in electrical networks Thomas Berger,  

E-Print Network [OSTI]

University of Technology Page 2 / 13 #12;Example: electrical RLC network Z(s)i(s) = vs(s), Z(s) = s-1 1 C1Single element changes in electrical networks Thomas Berger, George Halikias and Nicos Karcanias, 2012 Single element changes in electrical networks Thomas Berger, George Halikias and Nicos Karcanias

Knobloch,Jürgen

274

ATP Hydrolysis Stimulates Large Length Fluctuations in Single Actin Filaments  

E-Print Network [OSTI]

ATP Hydrolysis Stimulates Large Length Fluctuations in Single Actin Filaments Evgeny B. Stukalin is investigated theoretically using a stochastic model that takes into account the hydrolysis of ATP filaments. It is found that the ATP hydrolysis has a strong effect on dynamic properties of single actin

275

Quantum Communication with Continuum Single-Photon Pulses  

E-Print Network [OSTI]

In this work, we analyze the behavior of continuum single-photon pulses in some quantum communication schemes. In particular, we consider the single-photon interference in a Mach-Zenhder interferometer, the HOM interference and the quantum bit commitment protocol.

F. F. S. Rios; R. V. Ramos

2014-05-15T23:59:59.000Z

276

Single Payment Vendor Number Request Page 1 of 1  

E-Print Network [OSTI]

Single Payment Vendor Number Request UM 1676 Page 1 of 1 Please Type or Print Clearly MUST BE COMPLETED BY THE CLUSTER DIRECTOR This is a one-time request for a cluster-specific single vendor payment payments to human subjects or refunds of deposits or as directed by Disbursement Services. This vendor

Weiblen, George D

277

Absorption spectroscopy of individual single-walled carbon nanotubes  

E-Print Network [OSTI]

Absorption spectroscopy of individual single-walled carbon nanotubes Stéphane Berciaud,a Laurent-walled carbon nanotubes (SWNTs) lead to heterogeneous samples containing mixtures of metallic and semiconducting species with a variety of lengths and defects. Optical detection at the single nanotube level should thus

Boyer, Edmond

278

Manipulation and Imaging of Individual Single-Walled Carbon Nanotubes  

E-Print Network [OSTI]

Manipulation and Imaging of Individual Single-Walled Carbon Nanotubes with an Atomic Force Microscope** By Henk W. C. Postma, Allard Sellmeijer, and Cees Dekker* Carbon nanotubes[1] have attracted-walled nanotubes,[3±5] the prototype single-walled tubes are much more difficult to study since their diameter

279

Quantum rotation of hydrogen in single-wall carbon nanotubes  

E-Print Network [OSTI]

Quantum rotation of hydrogen in single-wall carbon nanotubes C.M. Brown a,b , T. Yildirim b , D containing single-wall carbon nanotubes. These materials have attracted considerable interest recently due the ortho±para conversion of physisorbed hydrogen in a nanotube containing soot loaded with hydrogen. From

Yildirim, Taner

280

Simulations of nanosensors based on single walled carbon nanotubes  

E-Print Network [OSTI]

Simulations of nanosensors based on single walled carbon nanotubes Polina Pine1, Yuval E. Yaish2. The potential of single-walled carbon nanotubes as mass sensors is examined. The change in mass leads to proportional changes in the nanotube vibrational frequencies, which are monitored during atomistic simulations

Adler, Joan

Note: This page contains sample records for the topic "nanoclusters out-perform single" 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

Characterization of single wall carbon nanotubes by nonane preadsorption  

E-Print Network [OSTI]

energy for nitrogen adsorbed in nanotubes at zero coverage within the range of 12­18 kJ/mol. This bindingCharacterization of single wall carbon nanotubes by nonane preadsorption Oleg Byl a , Jie Liu b The preferential blocking of the interior adsorption sites of single walled carbon nanotubes (SWNTs) by n

Liu, Jie

282

Electrical Transport in Single-Wall Carbon Nanotubes  

E-Print Network [OSTI]

. (a) Schematic view a nanotube field-effect transistor (b) The Dirac energy dispersion coneElectrical Transport in Single-Wall Carbon Nanotubes Michael J. Biercuk1,3 , Shahal Ilani2 metal and semiconducting single-wall carbon nanotubes. The fundamental scattering mechanisms governing

McEuen, Paul L.

283

Raman Measurements on Electrochemically Doped Single-Walled Carbon Nanotubes  

E-Print Network [OSTI]

Raman Measurements on Electrochemically Doped Single-Walled Carbon Nanotubes P. M. Rafailov, M and studied the Raman response of electro- chemically doped single-walled carbon nanotubes (SWNT) using different salt solutions. The fre- quency shift of the radial breathing mode (RBM) and the high-energy mode

Nabben, Reinhard

284

Department of Electrical Engineering -Systems FOR SINGLE MICROPHONE  

E-Print Network [OSTI]

Department of Electrical Engineering - Systems ALGORITHMS FOR SINGLE MICROPHONE SPEECH ENHANCEMENT FOR SINGLE MICROPHONE SPEECH ENHANCEMENT Thesis submitted towards the degree of "Master of Science enhancement. We extend previous results by giving an extended parametric model for both the speech and noise

Gannot, Sharon

285

''Bare'' single-particle energies in Ni-56  

E-Print Network [OSTI]

The structure of the low-lying levels in the mirror nuclei Ni-57 and Cu-57 is described within the extended unified model. The problem of single-particle energies in Ni-56 is treated in detail. ''Bare'' single-particle energies are extracted from...

Trache, L.; Kolomiets, A.; Shlomo, S.; Heyde, K.; Dejbakhsh, H.; Gagliardi, Carl A.; Tribble, Robert E.; Zhou, XG; Jacob, VE; Oros, AM.

1996-01-01T23:59:59.000Z

286

Mechanisms and modeling of single-event upset  

SciTech Connect (OSTI)

The basic mechanisms of single-event upset are reviewed, including charge collection in silicon junctions and transistors, and properties of single-event upset in CMOS static random access memory (SRAM) cells. The mechanisms are illustrated through the use of three-dimensional device and circuit simulations. Technology trends and implications for commercial devices are discussed.

Dodd, Paul E.

1998-10-12T23:59:59.000Z

287

A High-Resolution Single Nucleotide Polymorphism Genetic Map  

E-Print Network [OSTI]

A High-Resolution Single Nucleotide Polymorphism Genetic Map of the Mouse Genome Sagiv Shifman1 humans. Using more than 10,000 single nucleotide polymorphisms evenly spaced across the mouse genome, we nucleotide polymorphism genetic map of the mouse genome. PLoS Biol 4(12): e395. DOI: 10.1371/journal

Nachman, Michael

288

Using relational databases to analyze Microarray probes and single nucleotide  

E-Print Network [OSTI]

Using relational databases to analyze Microarray probes and single nucleotide Polymorphisms Abhijit probes and sin- gle nucleotide polymorphisms Abhijit W. Phatak1 , and Eric C. Rouchka1,* 1 Department valuable in the study of single nucleotide polymor- phisms (SNPs). Aside from the physical use

Rouchka, Eric

289

Optical microcavity with semiconducting single-wall carbon nanotubes  

E-Print Network [OSTI]

Optical microcavity with semiconducting single- wall carbon nanotubes Etienne Gaufrès,1 Nicolas-Perot microcavities based on semiconducting single-wall carbon nanotubes with a quality factor of 160. We properties References and links 1. P. Avouris, M. Freitag and V. Perebeinos, "Carbon nanotube photonics

Paris-Sud XI, Université de

290

GENETIC ALGORITHMS FOR A SINGLE-TRACK VEHICLE AUTONOMOUS PILOT  

E-Print Network [OSTI]

GENETIC ALGORITHMS FOR A SINGLE-TRACK VEHICLE AUTONOMOUS PILOT Dana Vrajitoru Intelligent Systems algorithms to an autonomous pilot designed for motorized single-track vehicles (motorcycles). The pilot contribute efficiently to configuring the autonomous pilot. Key Words Genetic algorithms, multi

Vrajitoru, Dana

291

Multi-Sensor Single-Actuator Control of HVAC Systems  

E-Print Network [OSTI]

It is common to control several rooms in a building with a single sensor in one of the rooms and a single actuator driving just one control element such as an air damper. New, low-cost, wireless sensor technology now offers the opportunity...

Lin, C.; Auslander, D.; Federspiel, C.

2002-01-01T23:59:59.000Z

292

Exploring Maximum Humidity Control and Energy Conservation Opportunities with Single Duct Single Zone Air-Handling Units  

E-Print Network [OSTI]

Humidity control for single-duct single-zone (SDSZ) constant volume air handling units is known to be a challenge. The operation of these systems is governed by space temperature only. Under mild weather conditions, discharge air temperature can get...

Zhou, J.; Wei, G.; Turner, W. D.; Deng, S.; Claridge, D.

2006-01-01T23:59:59.000Z

293

Methods for forming particles from single source precursors  

DOE Patents [OSTI]

Single source precursors are subjected to carbon dioxide to form particles of material. The carbon dioxide may be in a supercritical state. Single source precursors also may be subjected to supercritical fluids other than supercritical carbon dioxide to form particles of material. The methods may be used to form nanoparticles. In some embodiments, the methods are used to form chalcopyrite materials. Devices such as, for example, semiconductor devices may be fabricated that include such particles. Methods of forming semiconductor devices include subjecting single source precursors to carbon dioxide to form particles of semiconductor material, and establishing electrical contact between the particles and an electrode.

Fox, Robert V. (Idaho Falls, ID); Rodriguez, Rene G. (Pocatello, ID); Pak, Joshua (Pocatello, ID)

2011-08-23T23:59:59.000Z

294

Single top quark production and Vtb at the Tevatron  

SciTech Connect (OSTI)

Single top quark production via the electroweak interaction was observed by the D0 and CDF collaborations at the Tevatron proton-antiproton collider at Fermilab. Multivariate analysis techniques are employed to extract the small single top quark signal. The combined Tevatron cross section is 2.76{sub -0.47}{sup +0.58} pb. This corresponds to a lower limit on the CKM matrix element |V{sub tb}| of 0.77. Also reported are measurements of the t-channel cross section, the top quark polarization in single top quark events, and limits on gluon-quark flavor-changing neutral currents and W{prime} boson production.

Schwienhorst, Reinhard; /Michigan State U.

2010-09-01T23:59:59.000Z

295

Epitaxial electrodeposition of freestanding large area single crystal substrates  

SciTech Connect (OSTI)

The authors report on a method for producing freestanding single crystal metal films over large areas using electrodeposition and selective etching. The method can be turned into an inexpensive continuous process for making long ribbons or a large area of single crystal films. Results from a 5x5 mm{sup 2} Ni single crystal film using electron backscattering pattern pole figures and x-ray diffraction demonstrate that the quality of material produced is equivalent to the initial substrate without annealing or polishing.

Shin, Jae Wook; Standley, Adam; Chason, Eric [Brown University, Box D, Providence, Rhode Island 02912 (United States)

2007-06-25T23:59:59.000Z

296

Investigation of single unit flashovers in HVDC insulator strings  

SciTech Connect (OSTI)

In HVDC transmission lines, a special phenomenon, so called single unit flashover, is observed under some special conditions. Only one or two insulator units repeat flashovers, not resulting in an overall flashover along the string. However, higher magnitudes of audible noise, radio and television interferences, may give a serious problem. Based on the investigation on {+-}500-kV full scale insulator strings, higher occurrence probability of single unit flashovers under cold-wet-switch-on conditions was clarified compared with normal continuous operating voltage conditions. Effectiveness of the newly proposed countermeasures to prevent single unit flashovers was demonstrated by experiments in laboratory and in field.

Ishikawa, Kouichi; Kageyama, Hiroshi; Yamada, Yasuhiro [Kansai Electric Power Co., Inc., Osaka (Japan)] [Kansai Electric Power Co., Inc., Osaka (Japan); Matsuoka, Ryosuke; Ito, Susumu; Sakanishi, Kenji [NGK Insulators, Ltd., Nagoya (Japan)] [NGK Insulators, Ltd., Nagoya (Japan)

1996-10-01T23:59:59.000Z

297

Single-photon heat conduction in electrical circuits  

E-Print Network [OSTI]

We study photonic heat conduction between two resistors coupled weakly to a single superconducting microwave cavity. At low enough temperature, the dominating part of the heat exchanged between the resistors is transmitted by single-photon excitations of the fundamental mode of the cavity. This manifestation of single-photon heat conduction should be experimentally observable with the current state of the art. Our scheme can possibly be utilized in remote interference-free temperature control of electric components and environment engineering for superconducting qubits coupled to cavities.

Jones, P J; Tan, K Y; Mttnen, M

2011-01-01T23:59:59.000Z

298

Single-photon heat conduction in electrical circuits  

E-Print Network [OSTI]

We study photonic heat conduction between two resistors coupled weakly to a single superconducting microwave cavity. At low enough temperature, the dominating part of the heat exchanged between the resistors is transmitted by single-photon excitations of the fundamental mode of the cavity. This manifestation of single-photon heat conduction should be experimentally observable with the current state of the art. Our scheme can possibly be utilized in remote interference-free temperature control of electric components and environment engineering for superconducting qubits coupled to cavities.

P. J. Jones; J. A. M. Huhtamki; K. Y. Tan; M. Mttnen

2011-07-14T23:59:59.000Z

299

Single-Degenerate Type Ia Supernovae Are Preferentially Overluminous  

E-Print Network [OSTI]

Recent observational and theoretical progress has favored merging and helium-accreting sub-Chandrasekhar mass white dwarfs in the double-degenerate and the double-detonation channels, respectively, as the most promising progenitors of normal Type Ia supernovae (SNe Ia). Thus the fate of rapidly-accreting Chandrasekhar mass white dwarfs in the single-degenerate channel remains more mysterious then ever. In this paper, we clarify the nature of ignition in Chandrasekhar-mass single-degenerate SNe Ia by analytically deriving the existence of a characteristic length scale which establishes a transition from central ignitions to buoyancy-driven ignitions. Using this criterion, combined with data from three-dimensional simulations of convection and ignition, we demonstrate that the overwhelming majority of ignition events within Chandrasekhar-mass white dwarfs in the single-degenerate channel are buoyancy-driven, and consequently lack a vigorous deflagration phase. We thus infer that single-degenerate SNe Ia are gen...

Fisher, Robert

2015-01-01T23:59:59.000Z

300

A Single-Product Inventory Model for Multiple Demand Classes  

E-Print Network [OSTI]

We consider a single-product inventory system that serves multiple demand classes, which differ in their shortage costs or service level requirements. We assume a critical-level control policy, and show the equivalence ...

Arslan, Hasan

2005-05-27T23:59:59.000Z

Note: This page contains sample records for the topic "nanoclusters out-perform single" 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

A Compact Linearisation of Euclidean Single Allocation Hub ...  

E-Print Network [OSTI]

O'Kelly [5] introduced the Uncapacitated Single Allocation p-Hub Median. Problem (USApHMP) in 1987: A set of p hubs is chosen from n possible hub locations...

2014-11-27T23:59:59.000Z

302

Understanding Enzyme Activity Using Single Molecule Tracking (Poster)  

SciTech Connect (OSTI)

This poster describes single-molecule tracking and total internal reflection fluorescence microscopy. It discusses whether the carbohydrate-binding module (CBM) moves on cellulose, how the CBM binds to cellulose, and the mechanism of cellulosome assembly.

Liu, Y.-S.; Zeng, Y.; Luo, Y.; Xu, Q.; Himmel, M.; Smith S.; Wei, H.; Ding, S.-Y.

2009-06-01T23:59:59.000Z

303

Single qubit, two qubit gates and no signalling principle  

E-Print Network [OSTI]

In this work we investigate that whether one can construct single and two qubit gates for arbitrary quantum states from the principle of no signalling. We considered the problem for Pauli gates, Hadamard gate, C-Not gate.

Indranil Chakrabarty

2009-01-31T23:59:59.000Z

304

Superconducting-nanowire single-photon-detector linear array  

E-Print Network [OSTI]

We designed, fabricated, and tested a one-dimensional array of superconducting-nanowire single-photon detectors, integrated with on-chip inductors and resistors. The architecture is suitable for monolithic integration on ...

Zhao, Qingyuan

305

Isolating and moving single atoms using silicon nanocrystals  

DOE Patents [OSTI]

A method is disclosed for isolating single atoms of an atomic species of interest by locating the atoms within silicon nanocrystals. This can be done by implanting, on the average, a single atom of the atomic species of interest into each nanocrystal, and then measuring an electrical charge distribution on the nanocrystals with scanning capacitance microscopy (SCM) or electrostatic force microscopy (EFM) to identify and select those nanocrystals having exactly one atom of the atomic species of interest therein. The nanocrystals with the single atom of the atomic species of interest therein can be sorted and moved using an atomic force microscope (AFM) tip. The method is useful for forming nanoscale electronic and optical devices including quantum computers and single-photon light sources.

Carroll, Malcolm S. (Albuquerque, NM)

2010-09-07T23:59:59.000Z

306

Constitutive modeling of creep of single crystal superalloys  

E-Print Network [OSTI]

of , and oriented single crystal nickel based su- peralloys for a range of temperatures. The predictions of the theory match well with the available experimental data for CMSX-4. The constitutive model is also imple- mented as a User...

Prasad, Sharat Chand

2006-10-30T23:59:59.000Z

307

Optoelectronic and photonic control of single quantum dots  

E-Print Network [OSTI]

Optoelectronic and photonic control of single quantum dots Samuel James Dewhurst Wolfson College University of Cambridge A thesis submitted for the degree of Doctor of Philosophy April 2010 Declaration This thesis describes work carried out...

Dewhurst, Samuel James

2010-10-12T23:59:59.000Z

308

Tuning Electrical and Optoelectronic Properties of Single Cadmium Telluride Nanoribbon  

E-Print Network [OSTI]

Tuning Electrical and Optoelectronic Properties of Single Cadmium Telluride Nanoribbon Maxwell C.e., electrical resistivity and field-effect transistor (FET) mobility) and optoelectronic property (photocurrent, and magnetic properties with potential application in nanoscale electronic, optoelectronic, spintronics

Chen, Wilfred

309

anomalous single top: Topics by E-print Network  

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

angular correlation and the amount of top quark polarization in the production of a higgs boson in association with a single top quark in the t-channel at the LHC. We also study...

310

ahsg tag single: Topics by E-print Network  

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

cells (4, 5) or molecules (6). RNA from Sun, Fengzhu - Sun, Fengzhu 5 Probing the Higgs Boson via VBF with Single Jet Tagging at the LHC CERN Preprints Summary: The signature...

311

Effects of Single versus Multiple Warnings on Driver Performance  

E-Print Network [OSTI]

Objective: To explore how a single master alarm system affects drivers responses when compared to multiple, distinct warnings. Background: Advanced driver warning systems are intended to improve safety, yet inappropriate ...

Cummings, M. L.

2007-01-01T23:59:59.000Z

312

School Of Mathematics and Statistics Single Honours Mathematics  

E-Print Network [OSTI]

1 School Of Mathematics and Statistics Single Honours Mathematics BSc Mathematics MMath Mathematics BSc Financial Mathematics MMath Mathematics with French Language MMath Mathematics with German Language MMath Mathematics with Spanish Language BSc Mathematics with Study in Europe MMath Mathematics

313

Modeling and analysis of single-molecule experiments  

E-Print Network [OSTI]

Single molecule experiments offer a unique window into the molecular world. This window allows us to distinguish the behaviors of individual molecules from the behavior of bulk by observing rare events and heterogeneity ...

Witkoskie, James B

2005-01-01T23:59:59.000Z

314

Nanofluidic system for single molecule manipulation and analysis  

E-Print Network [OSTI]

This thesis focuses on characterizing and controlling the translocation of single 48.5 kbp [lambda]-DNA molecules through an artificial nanopore with the objective of enabling multiple measurements on the same molecule. ...

Sen, Yi-Heng

2008-01-01T23:59:59.000Z

315

Synthesis and physical characterization of thermoelectric single crystals  

E-Print Network [OSTI]

There is much current interest in thermoelectric devices for sustainable energy. This thesis describes a research project on the synthesis and physical characterization of thermoelectric single crystals. 1In?Se?-[delta] ...

Porras Prez Guerrero, Juan Pablo

2012-01-01T23:59:59.000Z

316

Transverse acoustic actuation of Ni-Mn-Ga single crystals  

E-Print Network [OSTI]

Two methods for the transverse acoustic actuation of {110}-cut Ni-Mn-Ga single crystals are discussed. In this actuation mode, crystals are used that have the {110}- type twinning planes parallel to the base of the crystal. ...

Simon, Jesse Matthew

2007-01-01T23:59:59.000Z

317

Single-Issue Industrial Revenue Bond Program (Missouri)  

Broader source: Energy.gov [DOE]

The Missouri Development Finance Board administers a Single-Issue Tax-Exempt Industrial Revenue Bond Program as well as a Taxable Industrial Revenue Bond Program. The Tax-Exempt Program finances (i...

318

Anisotropic Etching and Nanoribbon Formation in Single-Layer Graphene  

E-Print Network [OSTI]

We demonstrate anisotropic etching of single-layer graphene by thermally activated nickel nanoparticles. Using this technique, we obtain sub-10-nm nanoribbons and other graphene nanostructures with edges aligned along a ...

Campos, Leonardo

319

Method for single-cell mass and electrophoretic mobility measurement  

E-Print Network [OSTI]

Analysis of single cells using flow cytometry techniques has created a wealth of knowledge about cellular phenomena that could not be obtained by population average measurements. As these techniques are integrated with ...

Dextras, Philip

2010-01-01T23:59:59.000Z

320

Statistical analysis of Single Nucleotide Polymorphism microarrays in cancer  

E-Print Network [OSTI]

Statistical analysis of Single Nucleotide Polymorphism microarrays in cancer studies Pierre Neuvial Nucleotide Polymorphism (SNP) arrays. We define the copy number states formally, and show how Nucleotide Polymorphism microarrays in cancer studies

Paris-Sud XI, Université de

Note: This page contains sample records for the topic "nanoclusters out-perform single" 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

Scaffolding Carbon Nanotubes into Single-Molecule Circuitry  

E-Print Network [OSTI]

tion of individual carbon nanotubes. Nano Lett. 3, 613 (C. Dekker: Enzyme-coated carbon nanotubes as single-moleculeing point defects in carbon nanotubes. Nat. Mater. 4, 906 (

Collins, Philip G

2008-01-01T23:59:59.000Z

322

Superconducting Proximity Effect in Single-Crystal Nanowires  

E-Print Network [OSTI]

This dissertation describes experimental studies of the superconducting proximity effect in single-crystal Pb, Sn, and Zn nanowires of lengths up to 60 um, with both ends of the nanowires in contact with macroscopic electrodes that are either...

Liu, Haidong

2010-07-14T23:59:59.000Z

323

Performance of Large grain and Single Crystal Niobium Cavities  

SciTech Connect (OSTI)

We have fabricated and tested several single and one multi-cell cavity made from large grain niobium of four different ingots. Two cavities at a frequency of ~ 2.2 GHz were made from single crystal sheets. Large grain material was used for four single cell cavities of the HG and OC shapes, a 7-cell cavity of the HG shape all resonating at 1500 MHz and an ILC_LL single cell cavity at 1300 MHz. We began to explore also different chemical polishing baths such as a 1:1:1 and a 1:1:2 buffered solution and explored the change of cavity performance as a function of material removal. The results from these preliminary investigations are reported in this contribution.

Kneisel, Peter; Ciovati, Gianluigi; Sekutowicz, Jacek

2006-07-01T23:59:59.000Z

324

Exploring the mechanome with optical tweezers and single molecule fluorescence  

E-Print Network [OSTI]

The combination of optical tweezers and single molecule fluorescence into an instrument capable of making combined, coincident measurements adds an observable dimension that allows for the examination of the localized ...

Brau, Ricardo R. (Ricardo Rafael), 1979-

2008-01-01T23:59:59.000Z

325

Seismic Signal Processing for Single Well Imaging Applications  

E-Print Network [OSTI]

This thesis focuses on the concept of Single Well Imaging (SWI) in which a seismic source and receivers are deployed in a borehole to investigate the surrounding geology. The Uniwell project (1997-1999) was the first ...

Walsh, Brendan

2007-01-01T23:59:59.000Z

326

An economical single to three phase converter for induction motors  

E-Print Network [OSTI]

There are several different types of single to three phase converters for induction motors available today. However, many of the presently available phase converters suffer from disadvantages such as high cost or low performance. An economical...

Di Zerega, Philp Van Uytandaele

1994-01-01T23:59:59.000Z

327

21 Single drum-song by Aijakko Mitiq  

E-Print Network [OSTI]

last updated on Monday, 4 April 2011 Accession Form for Individual Recordings: Collection / Collector Name Stephen Leonard Tape No. / Track / Item No. 21 Length of track 1 minute Title of track Single drum-song by Aijakko Mitiq Translation...

Leonard, Stephen Pax

328

18 Single drum-song by Aijakko Mitiq  

E-Print Network [OSTI]

last updated on Monday, 4 April 2011 Accession Form for Individual Recordings: Collection / Collector Name Stephen Leonard Tape No. / Track / Item No. 18 Length of track 1 minute Title of track Single drum-song by Aijakko Mitiq Translation...

Leonard, Stephen Pax

329

20 Single drum-song by Aijakko Mitiq  

E-Print Network [OSTI]

last updated on Monday, 4 April 2011 Accession Form for Individual Recordings: Collection / Collector Name Stephen Leonard Tape No. / Track / Item No. 20 Length of track 1 minute 30 seconds Title of track Single drum-song by Aijakko Mitiq...

Leonard, Stephen Pax

330

24 Single drum-song by Aijakko Mitiq  

E-Print Network [OSTI]

last updated on Monday, 4 April 2011 Accession Form for Individual Recordings: Collection / Collector Name Stephen Leonard Tape No. / Track / Item No. 24 Length of track 1 minute Title of track Single drum-song by Aijakko Mitiq Translation...

Leonard, Stephen Pax

331

22 Single drum-song by Aijakko Mitiq  

E-Print Network [OSTI]

last updated on Monday, 4 April 2011 Accession Form for Individual Recordings: Collection / Collector Name Stephen Leonard Tape No. / Track / Item No. 22 Length of track 1 minute Title of track Single drum-song by Aijakko Mitiq Translation...

Leonard, Stephen Pax

332

23 Single drum-song by Aijakko Mitiq  

E-Print Network [OSTI]

last updated on Monday, 4 April 2011 Accession Form for Individual Recordings: Collection / Collector Name Stephen Leonard Tape No. / Track / Item No. 23 Length of track 1 minute Title of track Single drum-song by Aijakko Mitiq Translation...

Leonard, Stephen Pax

333

19 Single drum-song by Aijakko Mitiq  

E-Print Network [OSTI]

last updated on Monday, 4 April 2011 Accession Form for Individual Recordings: Collection / Collector Name Stephen Leonard Tape No. / Track / Item No. 19 Length of track 1 minute Title of track Single drum-song by Aijakko Mitiq Translation...

Leonard, Stephen Pax

334

Automation of single-cell techniques in neural tissue  

E-Print Network [OSTI]

The highly heterogeneous nature of cells in the context of native tissue environments necessitates the development of tools and techniques that can manipulate and analyze samples with single-cell resolution. While the past ...

Steinmeyer, Joseph D. (Joseph Daly)

2014-01-01T23:59:59.000Z

335

ON MONOIDS WITH A SINGLE DEFINING RELATOR G. C. Smith  

E-Print Network [OSTI]

. Smith Abstract. This paper concerns single-relator monoid presentations, and di* *scusses Eileen and Roy Smith on the occasion of their Golden Wedding Anniversary;2 G. C. SMITH Results The first result shows that Johnson

Smith, Geoff

336

Experimental study of a single riser in waves and currents  

E-Print Network [OSTI]

This research study focused on wave-current interaction with a single, flexible cylinder representative of a riser in 500 in (1640 ft) of water. Realistic environmental conditions were obtained by combining wave and current conditions which were...

Guerandel, Vincent Louis Pierre

1994-01-01T23:59:59.000Z

337

Fluctuations in Single-Shot $?$-Deterministic Work Extraction  

E-Print Network [OSTI]

In the single-shot regime it is argued that the criterion for allowed state transitions ought to be more restricted than the second law of thermodynamics, and is given by a condition called thermo-majorisation. Hence to arrive at a fluctuation theorem for the single-shot scenario, such a restriction has to be taken into account. Here we formulate and prove a tighter fluctuation relation for the single-shot $\\epsilon$-deterministic work extraction. The result links two areas of thermodynamics which have been of great interest recently, fluctuation relations for non-equilibrium processes and the $\\epsilon$-deterministic work extractable from single microscopic non-equilibrium systems. Furthermore, in doing so, we unify the notions of fluctuation in $\\epsilon$-deterministic work extraction and in fluctuation theorems.

Sina Salek; Karoline Wiesner

2015-04-20T23:59:59.000Z

338

al single crystal: Topics by E-print Network  

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

14 15 16 17 18 19 20 21 22 23 24 25 Next Page Last Page Topic Index 1 Low-Leakage Superconducting Tunnel Junctions with a Single-Crystal Al2O3 Barrier* Computer Technologies and...

339

al single crystals: Topics by E-print Network  

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

14 15 16 17 18 19 20 21 22 23 24 25 Next Page Last Page Topic Index 1 Low-Leakage Superconducting Tunnel Junctions with a Single-Crystal Al2O3 Barrier* Computer Technologies and...

340

Single P-N junction tandem photovoltaic device  

DOE Patents [OSTI]

A single P-N junction solar cell is provided having two depletion regions for charge separation while allowing the electrons and holes to recombine such that the voltages associated with both depletion regions of the solar cell will add together. The single p-n junction solar cell includes an alloy of either InGaN or InAlN formed on one side of the P-N junction with Si formed on the other side in order to produce characteristics of a two junction (2J) tandem solar cell through only a single P-N junction. A single P-N junction solar cell having tandem solar cell characteristics will achieve power conversion efficiencies exceeding 30%.

Walukiewicz, Wladyslaw (Kensington, CA); Ager, III, Joel W. (Berkeley, CA); Yu, Kin Man (Lafayette, CA)

2011-10-18T23:59:59.000Z

Note: This page contains sample records for the topic "nanoclusters out-perform single" 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

Single P-N junction tandem photovoltaic device  

DOE Patents [OSTI]

A single P-N junction solar cell is provided having two depletion regions for charge separation while allowing the electrons and holes to recombine such that the voltages associated with both depletion regions of the solar cell will add together. The single p-n junction solar cell includes an alloy of either InGaN or InAlN formed on one side of the P-N junction with Si formed on the other side in order to produce characteristics of a two junction (2J) tandem solar cell through only a single P-N junction. A single P-N junction solar cell having tandem solar cell characteristics will achieve power conversion efficiencies exceeding 30%.

Walukiewicz, Wladyslaw (Kensington, CA); Ager, III, Joel W. (Berkeley, CA); Yu, Kin Man (Lafayette, CA)

2012-03-06T23:59:59.000Z

342

Single antenna interference cancellation in asynchronous GSM/GPRS networks  

E-Print Network [OSTI]

In this project, we have proposed a decorrelator-based single antenna interference cancellation algorithm for the asynchronous GSM/GPRS network. The algorithm is tested according to the current SAIC/DARP performance ...

Chan, Chung, Ph. D. Massachusetts Institute of Technology

2005-01-01T23:59:59.000Z

343

Solution Techniques for Single-Phase Subchannel Equations  

E-Print Network [OSTI]

A steady-state, single phase subchannel solver was created for the purpose of integration into a multi-physics nuclear fuel performance code. Since applications of such a code include full nuclear reactor core flow simulation, a thorough...

Hansel, Joshua Edmund

2013-04-11T23:59:59.000Z

344

North Shore Gas Single Family Direct Install (Illinois)  

Broader source: Energy.gov [DOE]

Owners of single-family homes, condos, townhomes and two-flats may be eligible for a free installation of new programmable thermostats, pipe insulation, showerheads, and faucet aerators through...

345

Photoinduced phase transitions studied by femtosecond single-shot spectroscopy  

E-Print Network [OSTI]

Single-shot femtosecond spectroscopy has been developed and employed for the study of phase transitions of solid-state materials. Using two crossed echelons, a two dimensional spatial delay gradient was generated across a ...

Shin, Taeho

2010-01-01T23:59:59.000Z

346

Is a multiple excitation of a single atom equivalent to a single excitation of an ensemble of atoms?  

E-Print Network [OSTI]

Recent technological advances have enabled to isolate, control and measure the properties of a single atom, leading to the possibility to perform statistics on the behavior of single quantum systems. These experiments have enabled to check a question which was out of reach previously: Is the statistics of a repeatedly excitation of an atom N times equivalent to a single excitation of an ensemble of N atoms? We present a new method to analyze quantum measurements which leads to the postulation that the answer is most probably no. We discuss the merits of the analysis and its conclusion.

Ido Kanter; Aviad Frydman; Assaf Ater

2004-05-16T23:59:59.000Z

347

Is a multiple excitation of a single atom equivalent to a single excitation of an ensemble of atoms?  

E-Print Network [OSTI]

Recent technological advances have enabled to isolate, control and measure the properties of a single atom, leading to the possibility to perform statistics on the behavior of single quantum systems. These experiments have enabled to check a question which was out of reach previously: Is the statistics of a repeatedly excitation of an atom N times equivalent to a single excitation of an ensemble of N atoms? We present a new method to analyze quantum measurements which leads to the postulation that the answer is most probably no. We discuss the merits of the analysis and its conclusion.

Kanter, I; Ater, A; Kanter, Ido; Frydman, Aviad; Ater, Assaf

2004-01-01T23:59:59.000Z

348

Single-ultrafine-particle mass spectrometer development and application  

E-Print Network [OSTI]

SINGLE-ULTRAFINE-PARTICLE MASS SPECTROMETER DEVELOPMENT AND APPLICATION A Thesis by STANISLAV Y. GLAGOLENKO Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements for the degree... of MASTER OF SCIENCE August 2004 Major Subject: Mechanical Engineering SINGLE-ULTRAFINE-PARTICLE MASS SPECTROMETER DEVELOPMENT AND APPLICATION A Thesis by STANISLAV Y. GLAGOLENKO Submitted to Texas A&M University in partial...

Glagolenko, Stanislav Yurievich

2004-11-15T23:59:59.000Z

349

Sub-Rayleigh quantum imaging using single-photon sources  

SciTech Connect (OSTI)

We propose a technique capable of imaging a distinct physical object with sub-Rayleigh resolution in an ordinary far-field imaging setup using single-photon sources and linear optical tools only. We exemplify our method for the case of a rectangular aperture and two or four single-photon emitters obtaining a resolution enhanced by a factor of 2 or 4, respectively.

Thiel, C.; Zanthier, J. von [Institut fuer Optik, Information und Photonik, Universitaet Erlangen-Nuernberg, 91058 Erlangen (Germany); Bastin, T. [Institut de Physique Nucleaire, Atomique et de Spectroscopie, Universite de Liege, 4000 Liege (Belgium); Agarwal, G. S. [Department of Physics, Oklahoma State University, Stillwater, Oklahoma 74078-3072 (United States)

2009-07-15T23:59:59.000Z

350

Optical Nanofibers for Manipulating and Probing Single-Atom Fluorescence  

E-Print Network [OSTI]

We demonstrate how optical nanofibers can be used to manipulate and probe single-atom fluorescence. We show that fluorescence photons from a very small number of atoms, average atom number of less than 0.1, around the nanofiber can readily be observed through single-mode optical fiber under resonant laser irradiation. We show also that optical nanofibers enable us to probe the van der Waals interaction between atoms and surface with high precision by observing the fluorescence excitation spectrum.

K. P. Nayak; P. N. Melentiev; M. Morinaga; Fam Le Kien; V. I. Balykin; K. Hakuta

2006-10-17T23:59:59.000Z

351

Optical Nanofibers for Manipulating and Probing Single-Atom Fluorescence  

E-Print Network [OSTI]

We demonstrate how optical nanofibers can be used to manipulate and probe single-atom fluorescence. We show that fluorescence photons from a very small number of atoms, average atom number of less than 0.1, around the nanofiber can readily be observed through single-mode optical fiber under resonant laser irradiation. We show also that optical nanofibers enable us to probe the van der Waals interaction between atoms and surface with high precision by observing the fluorescence excitation spectrum.

Nayak, K P; Morinaga, M; Le Kien, F; Balykin, V I; Hakuta, K; Kien, Fam Le

2006-01-01T23:59:59.000Z

352

Best Management Practice #9: Single-Pass Cooling Equipment  

Broader source: Energy.gov [DOE]

Single-pass or once-through cooling systems provide an opportunity for significant water savings. In these systems, water is circulated once through a piece of equipment and is then disposed down the drain. Types of equipment that typically use single-pass cooling include CAT scanners, degreasers, hydraulic equipment, condensers, air compressors, welding machines, vacuum pumps, ice machines, x-ray equipment, and air conditioners.

353

Higgs Boson Decays into Single Photon plus Unparticle  

E-Print Network [OSTI]

The decay of the standard model Higgs boson into a single photon and a vector unparticle through a one-loop process is studied. For an intermediate mass Higgs boson, this single photon plus unparticle mode can have a branching ratio comparable with the two-photon discovery mode. The emitted photon has a continuous energy spectrum encoding the nature of the recoil unparticle. It can be measured in precision studies of the Higgs boson after its discovery.

Kingman Cheung; Chong Sheng Li; Tzu-Chiang Yuan

2007-11-21T23:59:59.000Z

354

Fast quantum dot single photon source triggered at telecommunications wavelength  

E-Print Network [OSTI]

We demonstrate a quantum dot single photon source at 900 nm triggered at 300 MHz by a continuous wave telecommunications wavelength laser followed by an electro-optic modulator. The quantum dot is excited by on-chip-generated second harmonic radiation, resonantly enhanced by a GaAs photonic crystal cavity surrounding the InAs quantum dot. Our result suggests a path toward the realization of telecommunications-wavelength-compatible quantum dot single photon sources with speeds exceeding 1 GHz.

Kelley Rivoire; Sonia Buckley; Arka Majumdar; Hyochul Kim; Pierre Petroff; Jelena Vuckovic

2010-12-20T23:59:59.000Z

355

Single crystal Processing and magnetic properties of gadolinium nickel  

SciTech Connect (OSTI)

GdNi is a rare earth intermetallic material that exhibits very interesting magnetic properties. Spontaneous magnetostriction occurs in GdNi at T{sub C}, on the order of 8000ppm strain along the c-axis and only until very recently the mechanism causing this giant magnetostriction was not understood. In order to learn more about the electronic and magnetic structure of GdNi, single crystals are required for anisotropic magnetic property measurements. Single crystal processing is quite challenging for GdNi though since the rare-earth transition-metal composition yields a very reactive intermetallic compound. Many crystal growth methods are pursued in this study including crucible free methods, precipitation growths, and specially developed Bridgman crucibles. A plasma-sprayed Gd{sub 2}O{sub 3} W-backed Bridgman crucible was found to be the best means of GdNi single crystal processing. With a source of high-quality single crystals, many magnetization measurements were collected to reveal the magnetic structure of GdNi. Heat capacity and the magnetocaloric effect are also measured on a single crystal sample. The result is a thorough report on high quality single crystal processing and the magnetic properties of GdNi.

Shreve, Andrew John [Ames Laboratory

2012-11-02T23:59:59.000Z

356

Universal Single-Server Blind Quantum Computation for Classical Client  

E-Print Network [OSTI]

Blind quantum computation allows a client without enough quantum technologies to delegate her quantum computation to quantum server, while keeping her input, output and algorithm secure. In this paper, we propose a universal single-server and classical-client blind quantum computation protocol based on entanglement swapping technology. In our protocol, the client interface with only one server and the only ability of the client requires is to get particles from trusted center and forward them to the server. Moreover, the protocol can be modified to make client completely classical by improving the ability of the trusted center. Numbers of blind quantum computation protocols have been presented in recent years, including single-, double- and triple-server protocols. In the single-server protocol, client needs to prepare single qubits. Though client can be classical in the double-server protocol, the two servers, who share Bell state from trusted center, are not allowed to communicate with each other. Recently, the triple-server protocol solves the noncommunication problem. Three servers, however, make the implementation of the computation sophisticated and unrealistic. Since it is impossible for blind quantum computation with only classical client and single server, blind quantum computation may work in the "Cloud + E-commerce" style in the future. Our protocol might become a key ingredient for real-life application in the first generation of quantum computations.

Hai-Ru Xu; Bang-Hai Wang

2014-11-12T23:59:59.000Z

357

http://edocsrpts.doe.gov:80/edocsreports/SingleItem.rpt | Department...  

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

http:edocsrpts.doe.gov:80edocsreportsSingleItem.rpt http:edocsrpts.doe.gov:80edocsreportsSingleItem.rpt http:edocsrpts.doe.gov:80edocsreportsSingleItem.rpt More...

358

Clin Cancer Res. Author manuscript Single nucleotide polymorphisms, apoptosis, and the development of  

E-Print Network [OSTI]

Clin Cancer Res. Author manuscript Page /1 7 Single nucleotide polymorphisms, apoptosis apoptosis (RILA) and possess in vitro certain single nucleotide polymorphisms (SNPs) located in candidate ; Genotype ; Humans ; Neoplasms ; genetics ; pathology ; radiotherapy ; Polymorphism, Single Nucleotide

Paris-Sud XI, Université de

359

Active Brownian Particles Escaping a Channel in Single File  

E-Print Network [OSTI]

Active particles may happen to be confined in channels so narrow that they cannot overtake each other (Single File conditions). This interesting situation reveals nontrivial physical features as a consequence of the strong inter-particle correlations developed in collective rearrangements. We consider a minimal model for active Brownian particles with the aim of studying the modifications introduced by activity with respect to the classical (passive) Single File picture. Depending on whether their motion is dominated by translational or rotational diffusion, we find that active Brownian particles in Single File may arrange into clusters which are continuously merging and splitting ({\\it active clusters}) or merely reproduce passive-motion paradigms, respectively. We show that activity convey to self-propelled particles a strategic advantage for trespassing narrow channels against external biases (e.g., the gravitational field).

Emanuele Locatelli; Fulvio Baldovin; Enzo Orlandini; Matteo Pierno

2014-11-27T23:59:59.000Z

360

Self-seeded single-frequency laser peening method  

DOE Patents [OSTI]

A method of operating a laser to obtain an output pulse having a single wavelength, comprises inducing an intracavity loss into a laser resonator having an amount that prevents oscillation during a time that energy from the pump source is being stored in the gain medium. Gain is built up in the gain medium with energy from the pump source until formation of a single-frequency relaxation oscillation pulse in the resonator. Upon detection of the onset of the relaxation oscillation pulse, the intracavity loss is reduced, such as by Q-switching, so that the built-up gain stored in the gain medium is output from the resonator in the form of an output pulse at a single frequency. An electronically controllable output coupler is controlled to affect output pulse characteristics. The laser acts a master oscillator in a master oscillator power amplifier configuration. The laser is used for laser peening.

Dane, C. Brent (Livermore, CA); Hackel, Lloyd (Livermore, CA); Harris, Fritz B. (Rocklin, CA)

2009-08-11T23:59:59.000Z

Note: This page contains sample records for the topic "nanoclusters out-perform single" 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

Single Ion Trapping for the Enriched Xenon Observatory  

SciTech Connect (OSTI)

In the last decade, a variety of neutrino oscillation experiments have established that there is a mass difference between neutrino flavors, without determining the absolute neutrino mass scale. The Enriched Xenon Observatory for neutrinoless double beta decay (EXO) will search for the rare decays of xenon to determine the absolute value of the neutrino mass. The experiment uses a novel technique to minimize backgrounds, identifying the decay daughter product in real time using single ion spectroscopy. Here, we describe single ion trapping and spectroscopy compatible with the EXO detector. We extend the technique of single ion trapping in ultrahigh vacuum to trapping in xenon gas. With this technique, EXO will achieve a neutrino mass sensitivity of {approx_equal} .010 eV.

Waldman, Samuel J.; /Stanford U., Phys. Dept. /SLAC; ,

2006-03-28T23:59:59.000Z

362

A bosonic Josephson junction controlled by a single trapped ion  

E-Print Network [OSTI]

We theoretically investigate the properties of a double-well bosonic Josephson junction coupled to a single trapped ion. We find that the coupling between the wells can be controlled by the internal state of the ion, which can be used for studying mesoscopic entanglement between the two systems and to measure their interaction with high precision. As a particular example we consider a single $^{87}$Rb atom and a small Bose-Einstein condensate controlled by a single $^{171}$Yb$^+$ ion. We calculate inter-well coupling rates reaching hundreds of Hz, while the state dependence amounts to tens of Hz for plausible values of the currently unknown s-wave scattering length between the atom and the ion. The analysis shows that it is possible to induce either the self-trapping or the tunneling regime, depending on the internal state of the ion. This enables the generation of large scale ion-atomic wavepacket entanglement within current technology.

R. Gerritsma; A. Negretti; H. Doerk; Z. Idziaszek; T. Calarco; F. Schmidt-Kaler

2012-07-25T23:59:59.000Z

363

Operation and biasing for single device equivalent to CMOS  

DOE Patents [OSTI]

Disclosed are semiconductor devices including at least one junction which is rectifying whether the semiconductor is caused to be N or P-type, by the presence of field induced carriers. In particular, inverting and non-inverting gate voltage channel induced semiconductor single devices with operating characteristics similar to conventional multiple device CMOS systems, which can be operated as modulators, are disclosed as are a non-latching SCR and an approach to blocking parasitic currents. Operation of the gate voltage channel induced semiconductor single devices with operating characteristics similar to multiple device CMOS systems under typical bias schemes is described, and simple demonstrative five mask fabrication procedures for the inverting and non-inverting gate voltage channel induced semiconductor single devices with operating characteristics similar to multiple device CMOS systems are also presented.

Welch, James D. (10328 Pinehurst Ave., Omaha, NE 68124)

2001-01-01T23:59:59.000Z

364

Transformation of a single photon field into bunches of pulses  

E-Print Network [OSTI]

We propose a method to transform a single photon field into bunches of pulses with controllable timing and number of pulses in a bunch. This method is based on transmission of a photon through an optically thick single-line absorber vibrated with a frequency appreciably exceeding the width of the absorption line. The spectrum of the quasi-monochromatic incoming photon is 'seen' by the vibrated absorber as a comb of equidistant spectral components separated by the vibration frequency. Tuning the absorber in resonance with m-th spectral component transforms the output radiation into bunches of pulses with m pulses in each bunch. We experimentally demonstrated the proposed technique with single 14.4 keV photons and produced for the first time gamma-photonic time-bin qudits with dimension d=2m.

R. N. Shakhmuratov; F. G. Vagizov; V. A. Antonov; Y. V. Radeonychev; O. Kocharovskaya

2014-12-16T23:59:59.000Z

365

Study of narrowband single photon emitters in polycrystalline diamond films  

SciTech Connect (OSTI)

Quantum information processing and integrated nanophotonics require robust generation of single photon emitters on demand. In this work, we demonstrate that diamond films grown on a silicon substrate by microwave plasma chemical vapor deposition can host bright, narrowband single photon emitters in the visiblenear infra-red spectral range. The emitters possess fast lifetime (?several ns), absolute photostability, and exhibit full polarization at excitation and emission. Pulsed and continuous laser excitations confirm their quantum behaviour at room temperature, while low temperature spectroscopy is performed to investigate inhomogeneous broadening. Our results advance the knowledge of solid state single photon sources and open pathways for their practical implementation in quantum communication and quantum information processing.

Sandstrom, Russell G.; Shimoni, Olga; Martin, Aiden A.; Aharonovich, Igor, E-mail: igor.aharonovich@uts.edu.au [School of Physics and Advanced Materials, University of Technology, Sydney, P.O. Box 123, Broadway, New South Wales 2007 (Australia)

2014-11-03T23:59:59.000Z

366

On the electronic properties of a single dislocation  

SciTech Connect (OSTI)

A detailed knowledge of the electronic properties of individual dislocations is necessary for next generation nanodevices. Dislocations are fundamental crystal defects controlling the growth of different nanostructures (nanowires) or appear during device processing. We present a method to record electric properties of single dislocations in thin silicon layers. Results of measurements on single screw dislocations are shown for the first time. Assuming a cross-section area of the dislocation core of about 1?nm{sup 2}, the current density through a single dislocation is J?=?3.8??10{sup 12}?A/cm{sup 2} corresponding to a resistivity of ????1??10{sup ?8} ? cm. This is about eight orders of magnitude lower than the surrounding silicon matrix. The reason of the supermetallic behavior is the high strain in the cores of the dissociated dislocations modifying the local band structure resulting in high conductive carrier channels along defect cores.

Reiche, Manfred, E-mail: reiche@mpi-halle.de; Erfurth, Wilfried; Pippel, Eckhard; Sklarek, Kornelia; Blumtritt, Horst; Haehnel, Angelika [Max Planck Institute of Microstructure Physics, Weinberg 2, 06120 Halle (Saale) (Germany); Kittler, Martin [IHP microelectronics, Im Technologiepark 25, 15236 Frankfurt (Oder) (Germany); IHP/BTU JointLab, K.-Wachsmann-Allee 1, 03046 Cottbus (Germany); Uebensee, Hartmut [CIS Research Institute of Microsensorics and Photovoltaics, K.-Zuse-Str. 14, 99099 Erfurt (Germany)

2014-05-21T23:59:59.000Z

367

Mechanical seal having a single-piece, perforated mating ring  

DOE Patents [OSTI]

A mechanical seal (e.g., single mechanical seals, double mechanical seals, tandem mechanical seals, bellows, pusher mechanical seals, and all types of rotating and reciprocating machines) with reduced contact surface temperature, reduced contact surface wear, or increased life span. The mechanical seal comprises a rotating ring and a single-piece, perforated mating ring, which improves heat transfer by controllably channeling coolant flow through the single-piece mating ring such that the coolant is in substantially uniform thermal contact with a substantial portion of the interior surface area of the seal face, while maintaining the structural integrity of the mechanical seal and minimizing the potential for coolant flow interruptions to the seal face caused by debris or contaminants (e.g., small solids and trash) in the coolant.

Khonsari, Michael M. (Baton Rouge, LA); Somanchi, Anoop K. (Fremont, CA)

2007-08-07T23:59:59.000Z

368

Elastic constants of single crystal Hastelloy X at elevated temperatures  

SciTech Connect (OSTI)

An acoustic time of flight technique is described in detail for measuring the elastic constants of cubic single crystals that allows for the constants to be determined at elevated temperature. Although the overall technique is not new, various aspects of the present work may prove extremely useful to others interested in finding these values, especially for aerospace materials applications. Elastic constants were determined for the nickel based alloy, Hastelloy X from room temperature to 1,000 C. Accurate elastic constants were needed as part of an effort to predict both polycrystal mechanical properties and the nature of grain induced heterogeneous mechanical response. The increased accuracy of the acoustically determined constants resulted in up to a 15% change in the predicted stresses in individual grains. These results indicate that the use of elastic single crystal constants of pure nickel as an approximation for the constants of gas turbine single crystal alloys, which is often done today, is inaccurate.

Canistraro, H.A. [Univ. of Hartford, CT (United States). Dept. of Mechanical and Audio Engineering Technology; Jordan, E.H.; Shi Shixiang [Univ. of Connecticut, Storrs, CT (United States); Favrow, L.H.; Reed, F.A. [United Technologies Research Center, East Hartford, CT (United States)

1998-07-01T23:59:59.000Z

369

Coherent Control of a Single Silicon-29 Nuclear Spin Qubit  

E-Print Network [OSTI]

Magnetic fluctuations caused by the nuclear spins of a host crystal are often the leading source of decoherence for many types of solid-state spin qubit. In group-IV materials, the spin-bearing nuclei are sufficiently rare that it is possible to identify and control individual host nuclear spins. This work presents the first experimental detection and manipulation of a single $^{29}$Si nuclear spin. The quantum non-demolition (QND) single-shot readout of the spin is demonstrated, and a Hahn echo measurement reveals a coherence time of $T_2 = 6.3(7)$ ms - in excellent agreement with bulk experiments. Atomistic modeling combined with extracted experimental parameters provides possible lattice sites for the $^{29}$Si atom under investigation. These results demonstrate that single $^{29}$Si nuclear spins could serve as a valuable resource in a silicon spin-based quantum computer.

Jarryd J. Pla; Fahd A. Mohiyaddin; Kuan Y. Tan; Juan P. Dehollain; Rajib Rahman; Gerhard Klimeck; David N. Jamieson; Andrew S. Dzurak; Andrea Morello

2014-08-06T23:59:59.000Z

370

Suitability versus fidelity for rating single-photon guns  

E-Print Network [OSTI]

The creation of specified quantum states is important for most, if not all, applications in quantum computation and communication. The quality of the state preparation is therefore an essential ingredient in any assessment of a quantum-state gun. We show that the fidelity, under the standard definitions is not sufficient to assess quantum sources, and we propose a new measure of suitability that necessarily depends on the application for the source. We consider the performance of single-photon guns in the context of quantum key distribution (QKD) and linear optical quantum computation. Single-photon sources for QKD need radically different properties than sources for quantum computing. Furthermore, the suitability for single-photon guns is discussed explicitly in terms of experimentally accessible criteria.

George M. Hockney; Pieter Kok; Jonathan P. Dowling

2003-04-01T23:59:59.000Z

371

Self-seeded single-frequency laser peening method  

DOE Patents [OSTI]

A method of operating a laser to obtain an output pulse having a single wavelength, comprises inducing an intracavity loss into a laser resonator having an amount that prevents oscillation during a time that energy from the pump source is being stored in the gain medium. Gain is built up in the gain medium with energy from the pump source until formation of a single-frequency relaxation oscillation pulse in the resonator. Upon detection of the onset of the relaxation oscillation pulse, the intracavity loss is reduced, such as by Q-switching, so that the built-up gain stored in the gain medium is output from the resonator in the form of an output pulse at a single frequency. An electronically controllable output coupler is controlled to affect output pulse characteristics. The laser acts a master oscillator in a master oscillator power amplifier configuration. The laser is used for laser peening.

DAne, C.Brent; Hackey, Lloyd A.; Harris, Fritz B.

2012-06-26T23:59:59.000Z

372

Spectrally tailored supercontinuum generation from single-mode-fiber amplifiers  

SciTech Connect (OSTI)

Spectral filtering of an all-normal-dispersion Yb-doped fiber laser was demonstrated effective for broadband supercontinuum generation in the picosecond time region. The picosecond pump pulses were tailored in spectrum with 1 nm band-pass filter installed between two single-mode fiber amplifiers. By tuning the spectral filter around 1028?nm, four-wave mixing was initiated in a photonic crystal fiber spliced with single-mode fiber, as manifested by the simultaneous generation of Stokes wave at 1076?nm and anti-Stokes wave at 984?nm. Four-wave mixing took place in cascade with the influence of stimulated Raman scattering and eventually extended the output spectrum more than 900?nm of 10?dB bandwidth. This technique allows smooth octave supercontinuum generation by using simple single-mode fiber amplifiers rather than complicated multistage large-mode-area fiber amplifiers.

Hao, Qiang; Guo, Zhengru; Zhang, Qingshan [Shanghai Key Laboratory of Modern Optical System, Engineering Research Center of Optical Instrument and System (Ministry of Education), School of Optical-Electrical and Computer Engineering, University of Shanghai for Science and Technology, 516 Jungong Road, Shanghai 200093 (China); Liu, Yang; Li, Wenxue [State Key Laboratory of Precision Spectroscopy, East China Normal University, 3663 Zhongshan North Road, Shanghai 200062 (China); Zeng, Heping, E-mail: hpzeng@phy.ecnu.edu.cn [Shanghai Key Laboratory of Modern Optical System, Engineering Research Center of Optical Instrument and System (Ministry of Education), School of Optical-Electrical and Computer Engineering, University of Shanghai for Science and Technology, 516 Jungong Road, Shanghai 200093 (China); State Key Laboratory of Precision Spectroscopy, East China Normal University, 3663 Zhongshan North Road, Shanghai 200062 (China)

2014-05-19T23:59:59.000Z

373

Wavelength meter having single mode fiber optics multiplexed inputs  

DOE Patents [OSTI]

A wavelength meter having a single mode fiber optics input is disclosed. The single mode fiber enables a plurality of laser beams to be multiplexed to form a multiplexed input to the wavelength meter. The wavelength meter can provide a determination of the wavelength of any one or all of the plurality of laser beams by suitable processing. Another aspect of the present invention is that one of the laser beams could be a known reference laser having a predetermined wavelength. Hence, the improved wavelength meter can provide an on-line calibration capability with the reference laser input as one of the plurality of laser beams.

Hackel, R.P.; Paris, R.D.; Feldman, M.

1993-02-23T23:59:59.000Z

374

A Single Atom as a Mirror of an Optical Cavity  

E-Print Network [OSTI]

By tightly focussing a laser field onto a single cold ion trapped in front of a far-distant dielectric mirror, we could observe a quantum electrodynamic effect whereby the ion behaves as the optical mirror of a Fabry-P\\'erot cavity. We show that the amplitude of the laser field is significantly altered due to a modification of the electromagnetic mode structure around the atom in a novel regime in which the laser intensity is already changed by the atom alone. e propose a direct application of this system as a quantum memory for single photons.

G. Htet; L. Slodi?ka; M. Hennrich; R. Blatt

2011-08-19T23:59:59.000Z

375

Nanoscale fluorescence lifetime imaging with a single diamond NV center  

E-Print Network [OSTI]

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

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

2013-03-05T23:59:59.000Z

376

Single-sideband hybrid AM-PM signal models  

E-Print Network [OSTI]

demodulation reference. The doubling process, which exhibits a sharp threshold effect, is not necessary when the hybrid AM-PM signal is employed. Possibilities for future effort are Seen in combining various of the eight signals to obtain multiple data... for their valuable contributions. Single-Sideband Hybrid AM-PM Signal Models The purpose of this letter is to disclose eight unique, nontrivial models for a hybrid AM-PM signal modulated by a single sinusoid and having a one-sided frequency spectrum...

Painter, John H.

377

SINGLE CRYSTAL NIOBIUM TUBES FOR PARTICLE COLLIDERS ACCELERATOR CAVITIES  

SciTech Connect (OSTI)

The objective of this research project is to produce single crystal niobium (Nb) tubes for use as particle accelerator cavities for the Fermi laboratorys International Linear Collider project. Single crystal Nb tubes may have superior performance compared to a polycrystalline tubes because the absence of grain boundaries may permit the use of higher accelerating voltages. In addition, Nb tubes that are subjected to the high temperature, high vacuum crystallization process are very pure and well annealed. Any impurity with a significantly higher vapor pressure than Nb should be decreased by the relatively long exposure at high temperature to the high vacuum environment. After application of the single crystal process, the surfaces of the Nb tubes are bright and shiny, and the tube resembles an electro polished Nb tube. For these reasons, there is interest in single crystal Nb tubes and in a process that will produce single crystal tubes. To convert a polycrystalline niobium tube into a single crystal, the tube is heated to within a few hundred ?C of the melting temperature of niobium, which is 2477 ?C. RF heating is used to rapidly heat the tube in a narrow zone and after reaching the operating temperature, the hot zone is slowly passed along the length of the tube. For crystallization tests with Nb tubes, the traverse rate was in the range of 1-10 cm per hour. All the crystallization tests in this study were performed in a water-cooled, stainless steel chamber under a vacuum of 5 x10-6 torr or better. In earliest tests of the single crystal growth process, the Nb tubes had an OD of 1.9 cm and a wall thickness of 0.15 mm. With these relatively small Nb tubes, the single crystal process was always successful in producing single crystal tubes. In these early tests, the operating temperature was normally maintained at 2200 ?C, and the traverse rate was 5 cm per hour. In the next test series, the Nb tube size was increased to 3.8 cm OD and the wall thickness was increased 0.18 mm and eventually to 0.21 mm. Again, with these larger tubes, single crystal tubes were usually produced by the crystallization process. The power supply was generally operated at full output during these tests, and the traverse rate was 5 cm per hour. In a few tests, the traverse rate was increased to 10 cm per hour, and at the faster traverse rate, single crystal growth was not achieved. In these tests with a faster traverse rate, it was thought that the tube was not heated to a high enough temperature to achieve single crystal growth. In the next series of tests, the tube OD was unchanged at 3.8 cm and the wall thickness was increased to 0.30 mm. The increased wall thickness made it difficult to reach an operating temperature above 2,000 ?C, and although the single crystal process caused a large increase in the crystal grains, no single crystal tubes were produced. It was assumed that the operating temperature in these tests was not high enough to achieve single crystal growth. In FY 2012, a larger power supply was purchased and installed. With the new power supply, temperatures above the melting point of Nb were easily obtained regardless of the tube thickness. A series of crystallization tests was initiated to determine if indeed the operating temperature of the previous tests was too low to achieve single crystal growth. For these tests, the Nb tube OD remained at 3.8 cm and the wall thickness was 0.30 mm. The first test had an operating temperature of 2,000 ?C. and the operating temperature was increased by 50 ?C increments for each successive test. The final test was very near the Nb melting temperature, and indeed, the Nb tube eventually melted in the center of the tube. These tests showed that higher temperatures did yield larger grain sizes if the traverse rate was held constant at 5 cm per hour, but no single crystal tubes were produced even at the highest operating temperature. In addition, slowing the traverse rate to as low as 1 cm per hour did not yield a single crystal tube regardless of operating temperature. At this time, it

MURPHY, JAMES E [University of Nevada, Reno] [University of Nevada, Reno

2013-02-28T23:59:59.000Z

378

Diamond turning of Si and Ge single crystals  

SciTech Connect (OSTI)

Single-point diamond turning studies have been completed on Si and Ge crystals. A new process model was developed for diamond turning which is based on a critical depth of cut for plastic flow-to-brittle fracture transitions. This concept, when combined with the actual machining geometry for single-point turning, predicts that {open_quotes}ductile{close_quotes} machining is a combined action of plasticity and fracture. Interrupted cutting experiments also provide a meant to directly measure the critical depth parameter for given machining conditions.

Blake, P.; Scattergood, R.O.

1988-12-01T23:59:59.000Z

379

Single-shell tank retrieval program mission analysis report  

SciTech Connect (OSTI)

This Mission Analysis Report was prepared to provide the foundation for the Single-Shell Tank (SST) Retrieval Program, a new program responsible for waste removal for the SSTS. The SST Retrieval Program is integrated with other Tank Waste Remediation System activities that provide the management, technical, and operations elements associated with planning and execution of SST and SST Farm retrieval and closure. This Mission Analysis Report provides the basis and strategy for developing a program plan for SST retrieval. This Mission Analysis Report responds to a US Department of Energy request for an alternative single-shell tank retrieval approach (Taylor 1997).

Stokes, W.J.

1998-08-11T23:59:59.000Z

380

Apparatus And Method For Producing Single Crystal Metallic Objects  

DOE Patents [OSTI]

A mold is provided for enabling casting of single crystal metallic articles including a part-defining cavity, a sorter passage positioned vertically beneath and in fluid communication with the part-defining cavity, and a seed cavity positioned vertically beneath and in fluid communication with the sorter passage. The sorter passage includes a shape suitable for encouraging a single crystal structure in solidifying molten metal. Additionally, a portion of the mold between the sorter passage and the part-defining cavity includes a notch for facilitating breakage of a cast article proximate the notch during thermal stress build-up, so as to prevent mold breakage or the inclusion of part defects.

Huang, Shyh-Chin (Latham, NY); Gigliotti, Jr., Michael Francis X. (Scotia, NY); Rutkowski, Stephen Francis (Duanesburg, NY); Petterson, Roger John (Fultonville, NY); Svec, Paul Steven (Scotia, NY)

2006-03-14T23:59:59.000Z

Note: This page contains sample records for the topic "nanoclusters out-perform single" 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

Method for harvesting single crystals from a peritectic melt  

DOE Patents [OSTI]

A method of preparing single crystals is disclosed. The method of preparation involves preparing precursor materials of a particular composition, heating the precursor material to achieve a peritectic mixture of peritectic liquid and crystals, cooling the peritectic mixture to quench directly the mixture on a porous, wettable inert substrate to wick off the peritectic liquid, leaving single crystals on the porous substrate. Alternatively, the peritectic mixture can be cooled to a solid mass and reheated on a porous, inert substrate to melt the matrix of peritectic fluid while leaving the crystals unmelted, allowing the wicking away of the peritectic liquid. 2 figs.

Todt, V.R.; Sengupta, S.; Shi, D.

1996-08-27T23:59:59.000Z

382

Method for harvesting single crystals from a peritectic melt  

DOE Patents [OSTI]

A method of preparing single crystals. The method of preparation involves preparing precursor materials of a particular composition, heating the precursor material to achieve a peritectic mixture of peritectic liquid and crystals, cooling the peritectic mixture to quench directly the mixture on a porous, wettable inert substrate to wick off the peritectic liquid, leaving single crystals on the porous substrate. Alternatively, the peritectic mixture can be cooled to a solid mass and reheated on a porous, inert substrate to melt the matrix of peritectic fluid while leaving the crystals unmelted, allowing the wicking away of the peritectic liquid.

Todt, Volker R. (Lemont, IL); Sengupta, Suvankar (Columbus, OH); Shi, Donglu (Cincinnati, OH)

1996-01-01T23:59:59.000Z

383

Method for harvesting rare earth barium copper oxide single crystals  

DOE Patents [OSTI]

A method of preparing high temperature superconductor single crystals. The method of preparation involves preparing precursor materials of a particular composition, heating the precursor material to achieve a peritectic mixture of peritectic liquid and crystals of the high temperature superconductor, cooling the peritectic mixture to quench directly the mixture on a porous, wettable inert substrate to wick off the peritectic liquid, leaving single crystals of the high temperature superconductor on the porous substrate. Alternatively, the peritectic mixture can be cooled to a solid mass and reheated on a porous, inert substrate to melt the matrix of peritectic fluid while leaving the crystals melted, allowing the wicking away of the peritectic liquid.

Todt, Volker R. (Lemont, IL); Sengupta, Suvankar (Columbus, OH); Shi, Donglu (Cincinnati, OH)

1996-01-01T23:59:59.000Z

384

Single-crystalline monolayer and multilayer graphene nano switches  

SciTech Connect (OSTI)

Growth of monolayer, bi-layer, and tri-layer single-crystalline graphene (SCG) using chemical vapor deposition method is reported. SCG's mechanical properties and single-crystalline nature were characterized and verified by atomic force microscope and Raman spectroscopy. Electro-mechanical switches based on mono- and bi-layer SCG were fabricated, and the superb properties of SCG enable the switches to operate at pull-in voltage as low as 1?V, and high switching speed about 100?ns. These devices exhibit lifetime without a breakdown of over 5000 cycles, far more durable than any other graphene nanoelectromechanical system switches reported.

Li, Peng; Cui, Tianhong, E-mail: tcui@me.umn.edu [State Key Laboratory of Precision Measurement Technology and Instruments, Department of Precision Instruments, Tsinghua University, Beijing 100084 (China); Department of Mechanical Engineering, University of Minnesota, Minneapolis, Minnesota 55455 (United States); Jing, Gaoshan [State Key Laboratory of Precision Measurement Technology and Instruments, Department of Precision Instruments, Tsinghua University, Beijing 100084 (China); Zhang, Bo; Sando, Shota [Department of Mechanical Engineering, University of Minnesota, Minneapolis, Minnesota 55455 (United States)

2014-03-17T23:59:59.000Z

385

Method for thermal processing alumina-enriched spinel single crystals  

DOE Patents [OSTI]

A process for age-hardening alumina-rich magnesium aluminum spinel to obtain the desired combination of characteristics of hardness, clarity, flexural strength and toughness comprises selection of the time-temperature pair for isothermal heating followed by quenching. The time-temperature pair is selected from the region wherein the precipitate groups have the characteristics sought. The single crystal spinel is isothermally heated and will, if heated long enough pass from its single phase through two pre-precipitates and two metastable precipitates to a stable secondary phase precipitate within the spinel matrix. Quenching is done slowly at first to avoid thermal shock, then rapidly.

Jantzen, Carol M. (Aiken, SC)

1995-01-01T23:59:59.000Z

386

Method for thermal processing alumina-enriched spinel single crystals  

DOE Patents [OSTI]

A process for age-hardening alumina-rich magnesium aluminum spinel to obtain the desired combination of characteristics of hardness, clarity, flexural strength and toughness comprises selection of the time-temperature pair for isothermal heating followed by quenching. The time-temperature pair is selected from the region wherein the precipitate groups have the characteristics sought. The single crystal spinel is isothermally heated and will, if heated long enough pass from its single phase through two pre-precipitates and two metastable precipitates to a stable secondary phase precipitate within the spinel matrix. Quenching is done slowly at first to avoid thermal shock, then rapidly. 12 figs.

Jantzen, C.M.

1995-05-09T23:59:59.000Z

387

Separating and combining single-mode and multimode optical beams  

DOE Patents [OSTI]

Techniques for combining initially separate single mode and multimode optical beams into a single "Dual Mode" fiber optic have been developed. Bi-directional propagation of two beams that are differentiated only by their mode profiles (i.e., wavefront conditions) is provided. The beams can be different wavelengths and or contain different modulation information but still share a common aperture. This method allows the use of conventional micro optics and hybrid photonic packaging techniques to produce small rugged packages suitable for use in industrial or military environments.

Ruggiero, Anthony J; Masquelier, Donald A; Cooke, Jeffery B; Kallman, Jeffery S

2013-11-12T23:59:59.000Z

388

Wavelength meter having single mode fiber optics multiplexed inputs  

DOE Patents [OSTI]

A wavelength meter having a single mode fiber optics input is disclosed. The single mode fiber enables a plurality of laser beams to be multiplexed to form a multiplexed input to the wavelength meter. The wavelength meter can provide a determination of the wavelength of any one or all of the plurality of laser beams by suitable processing. Another aspect of the present invention is that one of the laser beams could be a known reference laser having a predetermined wavelength. Hence, the improved wavelength meter can provide an on-line calibration capability with the reference laser input as one of the plurality of laser beams.

Hackel, Richard P. (Livermore, CA); Paris, Robert D. (San Ramon, CA); Feldman, Mark (Pleasanton, CA)

1993-01-01T23:59:59.000Z

389

Overview of Hanford Single Shell Tank (SST) Structural Integrity  

SciTech Connect (OSTI)

To improve the understanding of the single-shell tanks (SSTs) integrity, Washington River Protection Solutions, LLC (WRPS), the USDOE Hanford Site tank contractor, developed an enhanced Single-Shell Tank Integrity Project (SSTIP) in 2009. An expert panel on SST integrity, consisting of various subject matters experts in industry and academia, was created to provide recommendations supporting the development of the project. This panel developed 33 recommendations in four main areas of interest: structural integrity, liner degradation, leak integrity and prevention, and mitigation of contamination migration, Seventeen of these recommendations were used to develop the basis for the M-45-10-1 Change Package for the Hanford Federal Agreement and Compliance Order, which is also known as the Tri-Party Agreement. The structural integrity of the tanks is a key element in completing the cleanup mission at the Hanford Site. There are eight primary recommendations related to the structural integrity of Hanford Single-Shell Tanks. Six recommendations are being implemented through current and planned activities. The structural integrity of the Hanford is being evaluated through analysis, monitoring, inspection, materials testing, and construction document review. Structural evaluation in the form of analysis is performed using modern finite element models generated in ANSYS. The analyses consider in-situ, thermal, operating loads and natural phenomena such as earthquakes. Structural analysis of 108 of 149 Hanford Single-Shell Tanks has concluded that the tanks are structurally sound and meet current industry standards. Analysis of the remaining Hanford Single-Shell Tanks is scheduled for FY2014. Hanford Single-Shell Tanks are monitored through a dome deflection program. The program looks for deflections of the tank dome greater than 1/4 inch. No such deflections have been recorded. The tanks are also subjected to visual inspection. Digital cameras record the interior surface of the concrete tanks, looking for cracks and other surface conditions that may indicate signs of structural distress. The condition of the concrete and rebar of the Hanford Single-Shell Tanks is currently being tested and planned for additional activities in the near future. Concrete and rebar removed from the dome of a 65 year old tank was tested for mechanics properties and condition. Results indicated stronger than designed concrete with additional Petrographic examination and rebar completed. Material properties determined from previous efforts combined with current testing and construction document review will help to generate a database that will provide indication of Hanford Single-Shell Tank structural integrity.

Rast, Richard S. [Washington River Protection Systems, Richland, WA (United States); Washenfelder, Dennis J. [Washington River Protection Systems, Richland, WA (United States); Johnson, Jeremy M. [USDOE Office of River Protection, Richland, WA (United States)

2013-11-14T23:59:59.000Z

390

Efficient room-temperature source of polarized single photons  

DOE Patents [OSTI]

An efficient technique for producing deterministically polarized single photons uses liquid-crystal hosts of either monomeric or oligomeric/polymeric form to preferentially align the single emitters for maximum excitation efficiency. Deterministic molecular alignment also provides deterministically polarized output photons; using planar-aligned cholesteric liquid crystal hosts as 1-D photonic-band-gap microcavities tunable to the emitter fluorescence band to increase source efficiency, using liquid crystal technology to prevent emitter bleaching. Emitters comprise soluble dyes, inorganic nanocrystals or trivalent rare-earth chelates.

Lukishova, Svetlana G. (Honeoye Falls, NY); Boyd, Robert W. (Rochester, NY); Stroud, Carlos R. (Rochester, NY)

2007-08-07T23:59:59.000Z

391

Graphical functions and single-valued multiple polylogarithms  

E-Print Network [OSTI]

Graphical functions are single-valued complex functions which arise from Feynman amplitudes. We study their properties and use their connection to multiple polylogarithms to calculate Feynman periods. For the zig-zag and two more families of phi^4 periods we give exact results modulo products. These periods are proved to be expressible as integer linear combinations of single-valued multiple polylogarithms evaluated at one. For the larger family of 'constructible' graphs we give an algorithm that allows one to calculate their periods by computer algebra. The theory of graphical functions is used to prove the zig-zag conjecture.

Oliver Schnetz

2014-11-11T23:59:59.000Z

392

Coherent excitation of a single atom to a Rydberg state  

SciTech Connect (OSTI)

We present the coherent excitation of a single Rubidium atom to the Rydberg state 58d{sub 3/2} using a two-photon transition. The experimental setup is described in detail, as are experimental techniques and procedures. The coherence of the excitation is revealed by observing Rabi oscillations between ground and Rydberg states of the atom. We analyze the observed oscillations in detail and compare them to numerical simulations which include imperfections of our experimental system. Strategies for future improvements on the coherent manipulation of a single atom in our settings are given.

Miroshnychenko, Y.; Gaeetan, A.; Evellin, C.; Grangier, P.; Wilk, T.; Browaeys, A. [Laboratoire Charles Fabry, Institut d'Optique, Centre National de la Recherche Scientifique, Universite Paris-Sud, Campus Polytechnique, RD 128, F-91127 Palaiseau CEDEX (France); Comparat, D.; Pillet, P. [Laboratoire Aime Cotton, Centre National de la Recherche Scientifique, Universite Paris-Sud, Batiment 505, Campus d'Orsay, F-91405 Orsay CEDEX (France)

2010-07-15T23:59:59.000Z

393

ARM - Field Campaign - Spring Single Column Model IOP  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth (AOD) by Microtops Atmospheric Optical DepthgovCampaignsSpring 1994 Single ColumngovCampaignsSpring Single

394

antibody-functionalized single-walled carbon: Topics by E-print...  

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

thermal Kono, Junichiro 2 Single-Walled Carbon Nanotubes for Nanoelectronics Materials Science Websites Summary: CHAPTER 6 Single-Walled Carbon Nanotubes for...

395

Environmental genomics reveals a single species ecosystem deep within the Earth  

E-Print Network [OSTI]

Environmental genomics reveals a single species ecosystemMaterial for Environmental genomics reveals a single speciesTechnology Program, DOE Joint Genomics Institute, Berkeley,

Chivian, Dylan

2008-01-01T23:59:59.000Z

396

alkaline single-cell gel: Topics by E-print Network  

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

Feedback, Noise, and Single-Cell Antibiotic Resistance PI: Mary Dunlop, Ph.D. Renewable Energy Websites Summary: Postdoc Opportunity: Feedback, Noise, and Single-Cell...

397

E-Print Network 3.0 - adenocarcinoma single institutional Sample...  

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

single institutional Search Powered by Explorit Topic List Advanced Search Sample search results for: adenocarcinoma single institutional Page: << < 1 2 3 4 5 > >> 1 Chloroethane,...

398

amine oxime single-photon: Topics by E-print Network  

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

Single photons emitted by the N-V colour centre are sent Spagnolo, Filippo 2 Superconducting nanowire single photon detector on diamond Haig A. Atikian, Amin Eftekharian, A....

399

Detecting single-particle insulating collisions in microfluidics as a function of flow rate.  

E-Print Network [OSTI]

??This work presents the first electrochemical observation of single polystyrene microbead collisions with an electrode within a microchannel. We have observed that detecting single microbead (more)

Nettleton, Elizabeth Grace

2012-01-01T23:59:59.000Z

400

Intrinsic carrier mobility of a single-layer graphene covalently bonded with single-walled carbon nanotubes  

SciTech Connect (OSTI)

We report intrinsic carrier mobility calculations of a two-dimensional nanostructure that consists of porous single layer graphene covalently bonded with single-walled carbon nanotubes on both sides. We used first-principles calculation and found that the deformation potential of such system is about 25% of that of graphene, and the carrier mobility is about 5??10{sup 4} cm{sup 2} V{sup ?1} s{sup ?1} for both electrons and holes, about one order of magnitude lower than that of graphene. This nanostructure and its three-dimensional stacking could serve as novel organic electronic materials.

Li, Dian; Shao, Zhi-Gang [Laboratory of Quantum Engineering and Quantum Materials, School of Physics and Telecommunication Engineering, South China Normal University, Guangzhou, Guangdong 510006 (China); Hao, Qing [Department of Aerospace and Mechanical Engineering, University of Arizona, Tucson, Arizona 85721 (United States); Zhao, Hongbo, E-mail: zhaohb@scnu.edu.cn [Laboratory of Quantum Engineering and Quantum Materials, School of Physics and Telecommunication Engineering, South China Normal University, Guangzhou, Guangdong 510006 (China); Department of Aerospace and Mechanical Engineering, University of Arizona, Tucson, Arizona 85721 (United States)

2014-06-21T23:59:59.000Z

Note: This page contains sample records for the topic "nanoclusters out-perform single" 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

Deterministic source of a train of indistinguishable single-photon pulses with single-atom-cavity system  

E-Print Network [OSTI]

We present a mechanism to produce indistinguishable single-photon pulses on demand from an optical cavity. The sequences of two laser pulses generate, at the two Raman transitions of a four-level atom, the same cavity-mode photons without repumping of the atom between photon generations. Photons are emitted from the cavity with near-unit efficiency in well-defined temporal modes of identical shapes controlled by the laser fields. The second order correlation function reveals the single-photon nature of the proposed source. A realistic setup for the experimental implementation is presented.

A. Gogyan; S. Gurin; H. -R. Jauslin; Yu. Malakyan

2010-05-01T23:59:59.000Z

402

Economics & Finance MA or BSc (Single Honours Degrees)  

E-Print Network [OSTI]

88 Economics & Finance MA or BSc (Single Honours Degrees) Applied Economics Economics Financial Economics BA (International Honours Degrees) Economics See page 13 MA or BSc (Joint Honours Degrees) Economics and one of: Management Mathematics MA (Joint Honours Degrees) Economics and one of: Ancient

Brierley, Andrew

403

Low temperature magnetic transitions of single crystal HoBi  

SciTech Connect (OSTI)

We present resistivity, specific heat and magnetization measurements in high quality single crystals of HoBi, with a residual resistivity ratio of 126. We find, from the temperature and field dependence of the magnetization, an antiferromagnetic transition at 5.7 K, which evolves, under magnetic fields, into a series of up to five metamagnetic phases.

Fente, A. [Universidad Autonoma de Madrid; Suderow, H. [Universidad Autonoma de Madrid; Vieira, S. [Universidad Autonoma de Madrid; Nemes, N. M. [Instituto de Ciencia de Materiales de Madrid; Garcia-Hernandez, M. [Instituto de Ciencia de Materiales de Madrid; Budko, Sergei L. [Ames Laboratory; Canfield, Paul C. [Ames Laboratory

2013-09-04T23:59:59.000Z

404

Quantification of surface tension and internal pressure generated by single  

E-Print Network [OSTI]

Quantification of surface tension and internal pressure generated by single mitotic cells Elisabeth of a liquid cell interior, the surface tension is related to the local curvature and the hydrostatic pressure measured confined cell shapes to shapes obeying Laplace's law with uniform surface tension and find

Jülicher, Frank

405

Enhancing Single-Objective Projective Clustering Ensembles Francesco Gullo  

E-Print Network [OSTI]

Ensembles (PCE) has re- cently been formulated to solve the problem of deriving a robust projective consensus clustering from an ensemble of projective clustering solutions [1]. PCE is formalized. A major result in [1] is that single-objective PCE outperforms two-objective PCE in terms of efficiency

Domeniconi, Carlotta

406

Hybrid Multilevel Inverter with Single DC Haiwen Liu1  

E-Print Network [OSTI]

Hybrid Multilevel Inverter with Single DC Source Haiwen Liu1 , Leon M. Tolbert1, 2 , Burak Ozpineci Knoxville, TN 37932 3. Parker-Hannifin Corp. Olive Branch, MI 38654 Abstract- A hybrid multilevel inverter inverter (one leg for each phase) and H-bridge in series with each inverter leg. The inverter can be used

Tolbert, Leon M.

407

INTERGRANULAR CORROSION OF SINGLE PHASE ALUMINIUM AS A PITTING PHENOMENON  

E-Print Network [OSTI]

INTERGRANULAR CORROSION OF SINGLE PHASE ALUMINIUM AS A PITTING PHENOMENON M. METZGER Department of pitting corrosion in sulfuric acid containing sodium chloride were described. Intergranular fissuring in producing this type of attack. The intergranular corrosion phenomena which are exhibited by high purity

Paris-Sud XI, Université de

408

ON THE ACOUSTIC SINGLE LAYER POTENTIAL: STABILIZATION AND FOURIER ANALYSIS  

E-Print Network [OSTI]

ON THE ACOUSTIC SINGLE LAYER POTENTIAL: STABILIZATION AND FOURIER ANALYSIS A. BUFFA AND S. SAUTER in the stability and convergence estimates attains its minumum. Key words. Acoustic scattering, Galerkin boundary discretizations for the Helmholtz problem suffer from the pollution effect, i.e., the constants in the Galerkin

Buffa, Annalisa

409

Sources of Variability for the Single -Comparator Method in a  

E-Print Network [OSTI]

· RlM-M-2141 Sources of Variability for the Single - Comparator Method in a Heavy Water Reactor E for neutron acti- vation analysis were installed in the reactor DR 3, which is a heavy water cooled are located in the vertical tubes extending into the heavy water as shown in Fig. 1. Their characteristic

410

Single Molecule Study of Cellulase Hydrolysis of Crystalline Cellulose  

SciTech Connect (OSTI)

This report seeks to elucidate the role of cellobiohydrolase-I (CBH I) in the hydrolysis of crystalline cellulose. A single-molecule approach uses various imaging techniques to investigate the surface structure of crystalline cellulose and changes made in the structure by CBH I.

Liu, Y.-S.; Luo, Y.; Baker, J. O.; Zeng, Y.; Himmel, M. E.; Smith, S.; Ding, S.-Y.

2009-12-01T23:59:59.000Z

411

Planning Single-arm Manipulations with N-Arm Robots  

E-Print Network [OSTI]

Planning Single-arm Manipulations with N-Arm Robots Benjamin Cohen bcohen@seas.upenn.edu University@cs.cmu.edu Carnegie Mellon University Abstract--Many robotic systems are comprised of two or more arms. Such systems robotic arms. While the use of multiple arms increases the pro- ductivity of the system and extends

Guestrin, Carlos

412

A Single Disulfide Bond Differentiates Aggregation Pathways of 2-Microglobulin  

E-Print Network [OSTI]

simulation; aggregation; domain swapping*Corresponding author Introduction Amyloid fibrils are insolubleA Single Disulfide Bond Differentiates Aggregation Pathways of 2-Microglobulin Yiwen Chen1 at Chapel Hill Chapel Hill, NC 27599, USA Deposition of wild-type 2-microglobulin (2m) into amyloid

Dokholyan, Nikolay V.

413

SINGLE-ZONE STACK-DOMINATED INFILTRATION MODELING Max Sherman  

E-Print Network [OSTI]

SINGLE-ZONE STACK-DOMINATED INFILTRATION MODELING Max Sherman Energy Performance of Buildings Group Energy, Office of Buildings and Community Systems Building Systems Division of the U.S. Department of Energy under Contract No. DE-AC03-76SF00098. #12;2 NOMENCLATURE Neutral level [-]s ELA Effective leakage

414

Ion Beam Nanosculpting and Materials Science with Single Nanopores  

SciTech Connect (OSTI)

Work is reported in these areas: Nanopore studies; Ion sculpting of metals; High energy ion sculpting; Metrology of nanopores with single wall carbon nanotube probes; Capturing molecules in a nanopore; Strand separation in a nanopore; and DNA molecules and configurations in solid-state nanopores.

Golovchenko, J A; Branton, D

2009-10-03T23:59:59.000Z

415

Free energy reconstruction from nonequilibrium single-molecule pulling experiments  

E-Print Network [OSTI]

Free energy reconstruction from nonequilibrium single-molecule pulling experiments Gerhard Hummer also drives the system away from equilibrium. Nevertheless, we show how equilibrium free energy of an extension of Jarzynski's remarkable identity between free energies and the irreversible work. Recent

Weeks, Eric R.

416

Free Energy Surfaces from Single-Distance Information Philipp Schuetz,  

E-Print Network [OSTI]

Free Energy Surfaces from Single-Distance Information Philipp Schuetz, Rene´ Wuttke, Benjamin We propose a network-based method for determining basins and barriers of complex free energy surfaces for the iterative determination of individual basins by the minimum-cut-based free energy profile, a barrier

Caflisch, Amedeo

417

Giant Magnetic Anisotropy of Single Cobalt Atoms and  

E-Print Network [OSTI]

Giant Magnetic Anisotropy of Single Cobalt Atoms and Nanoparticles P. Gambardella,1,2 * S. Rusponi. Dederichs,5 K. Kern,1,2 C. Carbone,3,5 H. Brune1 The isotropic magnetic moment of a free atom is shown to develop giant magnetic anisotropy energy due to symmetry reduction at an atomically ordered surface

Brune, Harald

418

Imaging single atoms in a three-dimensional array  

E-Print Network [OSTI]

LETTERS Imaging single atoms in a three-dimensional array KARL D. NELSON, XIAO LI AND DAVID S atom trapped by light is a promising qubit. It has weak, well-understood interactions with the environment, its internal state can be precisely manipulated1 , interactions that entangle atoms can be varied

Loss, Daniel

419

Coating Single-Walled Carbon Nanotubes with Tin Oxide  

E-Print Network [OSTI]

, and Pt by electron-beam evaporation or electroless metal deposition.2,5,11 Single amine-functionalized Cd@Rice are used in this work. These SWCNTs are produced by a laser ablation method using nickel as a catalyst

Zettl, Alex

420

Book review Light Scattering Reviews 4: Single Light Scattering and  

E-Print Network [OSTI]

-monograph on the use of space-time Green functions in the description of the diffusive radiation transport in active equation of the radiative transfer theory in the classical style of the ``Soviet'' school of radiativeBook review Light Scattering Reviews 4: Single Light Scattering and Radiative Transfer, A

Note: This page contains sample records for the topic "nanoclusters out-perform single" 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

Single-and Multi-Point Aerodynamic Shape Optimization  

E-Print Network [OSTI]

Single- and Multi-Point Aerodynamic Shape Optimization Using A Parallel Newton-Krylov Approach, Ontario, M3H 5T6, Canada A Newton-Krylov algorithm for aerodynamic shape optimization in three dimensions the capabilities and efficiency of the approach. I. Introduction In the aerodynamic design of aircraft, there have

Zingg, David W.

422

Single Machine Scheduling with a Non-renewable Financial Resource  

E-Print Network [OSTI]

Single Machine Scheduling with a Non-renewable Financial Resource Evgeny R. Gafarov a , Alexander A with a non-renewable resource. For example, money or fuel provide natural examples of such a non-renewable resource. Such problems with a non-renewable resource are also referred to as financial scheduling problems

Magdeburg, Universität

423

Single element changes in electrical networks Thomas Berger,  

E-Print Network [OSTI]

, Ilmenau University of Technology Page 2 / 13 #12;Example: electrical RLC network Z(s)i(s) = vs(s), ZSingle element changes in electrical networks Thomas Berger, George Halikias and Nicos Karcanias, February 23, 2012 Single element changes in electrical networks Thomas Berger, George Halikias and Nicos

Knobloch,Jürgen

424

Electrochemical and Raman measurements on single-walled carbon nanotubes  

E-Print Network [OSTI]

Electrochemical and Raman measurements on single-walled carbon nanotubes M. Stoll a,*, P performed on a carbon nanotube mat as a working electrode using different salt solutions. The gravimetric capacitance of the nanotube material was estimated and its effective surface area was de- termined in a purely

Nabben, Reinhard

425

Scanning tunneling spectroscopy of suspended single-wall carbon nanotubes  

E-Print Network [OSTI]

Scanning tunneling spectroscopy of suspended single-wall carbon nanotubes B. J. LeRoy,a) S. G-wall carbon nanotubes that are freely suspended over a trench. The nanotubes were grown by chemical vapor on the freestanding portions of the nanotubes. Spatially resolved spectroscopy on the suspended portion of both

Dekker, Cees

426

EVALUATION OF VALUE CREATION CONCEPTS IN SINGLE FAMILY RESIDENTIAL SUBDIVISIONS  

E-Print Network [OSTI]

values. The study sample is composed of 6,562 single family houses nested in 85 subdivisions in College Station, Texas. Data are composed of two levels: the housing level and the subdivision level. The scores of the sense of arrival were provided...

Shin, Woo Jin

2010-07-14T23:59:59.000Z

427

Thermodynamic Analysis of a single chamber Microbial Eric A. Zielke  

E-Print Network [OSTI]

Thermodynamic Analysis of a single chamber Microbial Fuel Cell Eric A. Zielke May 5, 2006 #12;Microbial Fuel Cell Zielke ii List of Tables 1 First Law Thermodynamic Efficiencies from Experimental Data . . . . . . . 9 #12;Microbial Fuel Cell Zielke iii List of Figures 1 Representation of Anaerobic (anode portion

428

Single particle states in the heaviest known nuclei  

SciTech Connect (OSTI)

Neutron single-particle states above the N=152 subshell have been studied by high-resolution (d,p) reaction on a {sup 250}Cf target. All of the orbitals between N=152 and N=164 subshells have been identified. A tentative assignment has been made for the 1/2-(750) Nilsson state. 10 refs.

Ahmad, I.; Chasman, R.R.; Friedman, A.M. (Argonne National Lab., IL (USA)); Yates, S.W. (Kentucky Univ., Lexington, KY (USA))

1990-01-01T23:59:59.000Z

429

NANO-SCALE CALORIMETRY OF ISOLATED POLYETHYLENE SINGLE CRYSTALS  

E-Print Network [OSTI]

#12;NANO-SCALE CALORIMETRY OF ISOLATED POLYETHYLENE SINGLE CRYSTALS BY ALEX TAN KWAN B.S., Stanford) device, the nanocalorimeter, it was possible to investigate the melting of isolated polyethylene (PE, a simple Ni-foil calorimeter, to measure the heat capacity of a thin polyethylene film to verify

Allen, Leslie H.

430

The Static Single Information Form C. Scott Ananian  

E-Print Network [OSTI]

The Static Single Information Form by C. Scott Ananian B.S.E. Electrical Engineering Princeton and Computer Science September 3, 1999 Certi#12;ed by Martin Rinard Thesis Supervisor Accepted by Arthur C. Scott Ananian Submmitted to the Department of Electrical Engineering and Computer Science September 3

Ananian, C. Scott

431

Static Single Information Form C. Scott Ananian and Martin Rinard  

E-Print Network [OSTI]

Static Single Information Form C. Scott Ananian and Martin Rinard Laboratory for Computer Science#12;cantly optimize the program. Furthermore, we be- lieve that SSI form signi#12;cantly simpli#12;ed data ow analyses as a at, uni#12;ed system of constraints. This formulation allows us to generalize

Ananian, C. Scott

432

Simultaneous SHG of orthogonally polarized fundamentals in single QPM crystals  

E-Print Network [OSTI]

-order parametric nonlinear processes in a single lithium niobate crystal is being undertaken using a new technique cascading interactions can be realized. The use of the higher QPM orders (3rd, 5th or7th) for the type-0, as the respective nonlinear coefficients are dzzz ~27 pm/V and dyyz ~ 4.7 pm/V in lithium niobate crystals. Possible

433

Experimental investigation of single carbon compounds under hydrothermal conditions  

E-Print Network [OSTI]

Experimental investigation of single carbon compounds under hydrothermal conditions Jeffrey S; accepted in revised form 8 September 2005 Abstract The speciation of carbon in subseafloor hydrothermal reactant during the abiotic synthesis of reduced carbon compounds via Fischer­Tropsch-type processes

Rhoads, James

434

Processing A Printed Wiring Board By Single Bath Electrodeposition  

SciTech Connect (OSTI)

A method of processing a printed wiring board by single bath electrodeposition. Initial processing steps are implemented on the printed wiring board. Copper is plated on the printed wiring board from a bath containing nickel and copper. Nickel is plated on the printed wiring board from the bath containing nickel and copper and final processing steps are implemented on the printed wiring board.

Meltzer, Michael P. (Oakland, CA); Steffani, Christopher P. (Livermore, CA); Gonfiotti, Ray A. (Livermore, CA)

2003-04-15T23:59:59.000Z

435

Single-channel lunar scintillometer A. Tokovinin, E.Bustos  

E-Print Network [OSTI]

first idea was to use a piece of the solar panel as a large (5 cm diameter) light detector. However generator and saw the expected impulse response (which was not the case for the solar-panel detector by a single turbulent layer with unit turbulence integral J = C2 n dh. The WF is measured in m-1/3. Suppose

Tokovinin, Andrei A.

436

Noise and Bandwidth Performance of Single-Molecule Biosensors  

E-Print Network [OSTI]

Noise and Bandwidth Performance of Single-Molecule Biosensors J. Rosenstein, S. Sorgenfrei, K. L and nanotube field-effect transistors offer different tradeoffs between bandwidth and noise levels. Here, we on force spectroscopy, such as optical tweezers [4] and atomic force microscopy [5]. New electrochemical

Shepard, Kenneth

437

Single Database Private Information Retrieval Implies Oblivious Transfer \\Lambda  

E-Print Network [OSTI]

non­trivial PIR is complete for all two­party and multi­party secure compu­ tations. ffl There exists Crescenzo y Tal Malkin z Rafail Ostrovsky x Abstract A Single­Database Private Information Retrieval (PIR­ munication complexity. We call a PIR protocol non­trivial if its total communication is strictly less than

Ostrovsky, Rafail

438

Single Database Private Information Retrieval Implies Oblivious Transfer  

E-Print Network [OSTI]

Tal Malkinz Rafail Ostrovskyx Abstract A Single-Database Private Information Retrieval PIR- munication complexity. We call a PIR protocol non-trivial if its total communication is strictly less than the size of the database. Non-trivial PIR is an important cryp- tographic primitive with many applications

Ostrovsky, Rafail

439

Single Database Private Information Retrieval with Logarithmic Communication  

E-Print Network [OSTI]

]. Historically, the first 1dPIR scheme was proposed in [KO97], with its security based on the hardness Single database private information retrieval (1dPIR) is a cryptographic protocol between a database to the user (as otherwise the problem becomes trivial). In addition to its numerous applications [A01], 1dPIR

440

Observation of Electroweak Single Top-Quark Production  

E-Print Network [OSTI]

We report the observation of single top-quark production using 3.2??fb[superscript -1] of pp? collision data with ?s=1.96??TeV collected by the Collider Detector at Fermilab. The significance of the observed data is 5.0 ...

Xie, Si

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


441

Single Glucose Biofuel Cells Implanted in Rats Power Electronic Devices  

E-Print Network [OSTI]

Single Glucose Biofuel Cells Implanted in Rats Power Electronic Devices A. Zebda1,2 , S. Cosnier1 the first implanted glucose biofuel cell (GBFC) that is capable of generating sufficient power from a mammal further developments. Following recent developments in nano- and biotechnology, state-of-the-art biofuel

Boyer, Edmond

442

Postdoc Position in Microfluidics and Single Cell Raman Spectroscopy  

E-Print Network [OSTI]

Postdoc Position in Microfluidics and Single Cell Raman Spectroscopy Department of Microbial and Environmental Microfluidics Group (http://web.mit.edu/romanstocker) Department of Civil & Environmental (junior or senior) with strong expertise in microfluidics and an interest in applying it to microbial

Horn, Matthias

443

3D imaging and ranging by time-correlated single  

E-Print Network [OSTI]

3D imaging and ranging by time-correlated single photon counting by A. M. Wallace, 6. S. Buller and A. C. Walker 3D imaging is an important tool for metrology and reverse engineering of components and architecturalsurveying. In this article, we review briefly the principal methods in current use for 3D imaging

Buller, Gerald S.

444

Single-Step Stereolithography of Complex Anatomical Models  

E-Print Network [OSTI]

Single-Step Stereolithography of Complex Anatomical Models for Optical Flow Measurements Diane de of Technology & Emory University School of Medicine, Room 2119 U.A. Whitaker Building, 313 Ferst Dr., Atlanta demonstrated in literature to be a practical model construction tool for optical flow measurements

Pekkan, Kerem

445

Colossal Absorption of Molecules Inside Single Terahertz Nanoantennas  

E-Print Network [OSTI]

Colossal Absorption of Molecules Inside Single Terahertz Nanoantennas Hyeong-Ryeol Park, Kwang Jun: Molecules have extremely small absorption cross sections in the terahertz range even under resonant to be enhanced by >103 accompanied by a colossal absorption coefficient of 170 000 cm-1 . Tens of nanograms

Park, Namkyoo

446

Photovoltaic Measurements in Single-Nanowire Silicon Solar Cells  

E-Print Network [OSTI]

Photovoltaic Measurements in Single-Nanowire Silicon Solar Cells Michael D. Kelzenberg, Daniel B-voltage measurements were made under simulated Air Mass 1.5 global illumination. Photovoltaic spectral response work by our group has shown that macroscopic Si wire arrays (>1 cm2 in area) suitable for photovoltaic

Atwater, Harry

447

Fully Enclosed Cylindrical Single-Electrode-Based Triboelectric Nanogenerator  

E-Print Network [OSTI]

electronics is a new emerging area. Mechanical energy, as one of the most general power sources Institute of Materials Science, Tsukuba-city, Ibaraki 305-0047, Japan *S Supporting Information ABSTRACT: We: triboelectric nanogenerator, single-electrode-based, self-powered, energy harvesting INTRODUCTION Owing

Wang, Zhong L.

448

COMPARISON OF SINGLE AND MULTI GEOSYNTHETIC AND SOIL INTERFACE TESTS  

E-Print Network [OSTI]

, geosynthetic clay liner (GCL)/geomembrane, and soil/geosynthetic interfaces. This comparison shows an agreement and Choi 2004). A composite liner system consisting of multiple geosynthetic components, Liquid CollectionCOMPARISON OF SINGLE AND MULTI GEOSYNTHETIC AND SOIL INTERFACE TESTS Timothy D. Stark1 , Fawad S

449

Optical collection efficiency function in single-molecule detection experiments  

E-Print Network [OSTI]

Optical collection efficiency function in single-molecule detection experiments Jo¨ rg Enderlein and W. Patrick Ambrose The optical collection efficiency function for an optical system on a geometrical optics approx- imation are presented. Comparison is made with exact wave optics calculations

Enderlein, Jörg

450

Synthesis and Characterization of Single Crystalline Hafnium Carbide Nanowires  

E-Print Network [OSTI]

transition metal carbide (TMC) nanowires has been reported, no HfC nanowires have been successfully syntheSynthesis and Characterization of Single Crystalline Hafnium Carbide Nanowires Jinshi Yuan,,§ Han carbide (HfC) is the most refractory compound known to mankind. A catalyst-assisted chemical vapor deposi

Qin, Lu-Chang

451

Cancer Phylogenetics from Single-Cell Assays Gregory Pennington  

E-Print Network [OSTI]

Cancer Phylogenetics from Single-Cell Assays Gregory Pennington Stanley Shackney Russell Schwartz the Carnegie Mellon University Berkman Faculty Development Fund. #12;Keywords: computational biology, cancer, FISH, phylogeny #12;Abstract In the field of cancer biology, there is currently great interest

452

ISV FACT SHEET SINGLE ENSUITE: 198 sq.ft.  

E-Print Network [OSTI]

ISV FACT SHEET SINGLE ENSUITE: 198 sq.ft. STANDARD ROOM: (NO AIRCOND, NO WATER HEATER, FREE WIFI): RM 590 PER MONTH PER BED PREMIER ROOM: : (AIRCOND WITH WATER HEATER, FREE WIFI) : RM740 PER MONTH PER BED TWIN SHARING: 283 sq.ft. STANDARD ROOM: (NO AIRCOND, NO WATER HEATER, FREE WIFI): RM 490 PER MONTH

Southampton, University of

453

Single Cell Analysis Using Microfluidics Coupled to Ultrasensitive Mass Spectrometry  

E-Print Network [OSTI]

Single Cell Analysis Using Microfluidics Coupled to Ultrasensitive Mass Spectrometry PI Ryan Kelly is to combine microfluidic sample preparation and separations with the ultrasensitive mass spectrometry (MS without the need for chemical labeling. We will combine our expertise in the fields of microfluidics

454

Single-mode nonclassicality criteria via Holstein-Primakoff transformation  

E-Print Network [OSTI]

Recently, two quantifications for nonclassicality of a single-mode field are shown to be equivalent; (i) the rank of entanglement it can generate by a beam-splitter and (ii) the number of terms needed to expand it as superposition of coherent states. We show that nonclassicality criteria can be obtained with an alternative approach. The rank of two-mode entanglement among 2-level identical particles converges to the rank of single-mode nonclassicality within the Holstein-Primakoff transformation, at the large particle number limit. In particular, we show that the entanglement criterion of Hillery & Zubairy converges to the Mandel's $Q$-parameter which is used to reveal nonclassicality, and spin-squeezing criterion of S{\\o}rensen et al. converges to single-mode squeezing condition. We obtain additional nonclassicality criteria not existing in the literature. We also discuss if single-mode nonclassicality can be visualized as the entanglement of space generating the photons. Moreover, in a forthcoming study...

Tasgin, Mehmet Emre

2015-01-01T23:59:59.000Z

455

Single-DNA Molecule Nanomotor Regulated by Photons  

E-Print Network [OSTI]

of the motor backbone can significantly improve the efficiency of light-to-movement energy conversion of waste. In contrast to multiple-component DNA nanomachines, the intramolecular interaction in this single promising potential for applications which require highly efficient light-driven molecular motors. Nucleic

Tan, Weihong

456

Experimental plan for the Single-Family Study  

SciTech Connect (OSTI)

The national evaluation of the Weatherization Assistance Program (WAP) consists of five separate studies. The Single-Family Study is one of three studies that will estimate program energy savings and cost effectiveness in principal WAP submarkets. This report presents the experimental plan for the Single-Family Study, which will be implemented over the next three years (1991--1993). The Single-Family Study will directly estimate energy savings for a nationally representative sample of single-family and small multifamily homes weatherized in the 1989 program year. Savings will be estimated from gas and electric utility billing records using the Princeton Scorekeeping Method (PRISM). The study will also assess nonenergy impacts (e.g., health, comfort, safety, and housing affordability), estimate cost effectiveness, and analyze factors influencing these outcomes. For homes using fuels such as wood, coal, fuel oil, kerosene, and propane as the primary source of space conditioning, energy savings will be studied indirectly. The study will assemble a large nationally representative data base. A cluster sampling approach will be used, in which about 400 subgrantees are selected in a first stage and weatherized homes are selected in a second range. To ensure that the Single-Family Study is able to identify promising opportunities for future program development, two purposively selected groups of subgrantees will be included: (1) subgrantees that install cooling measures (such as more efficient air conditioning equipment or radiant barriers), and (2) exemplary subgrantees that use state-of-the-art technologies and service delivery procedures (such as advanced audit techniques, blower door tests, infrared scanners, extensive client education, etc.). These two groups of subgrantees will be analyzed to identify the most effective program elements in specific circumstances. 14 refs., 4 figs., 3 tabs.

Berry, L.G.; Brown, M.A.; Wright, T.; White, D.L.

1991-09-01T23:59:59.000Z

457

Single-Session Radiofrequency Ablation of Bilateral Lung Metastases  

SciTech Connect (OSTI)

Purpose: This retrospective study examined the feasibility and efficacy of bilateral lung radiofrequency ablation (RFA) performed in a single session. Methods: From 2002-2009, patients with bilateral lung metastases were treated by RFA, where possible in a single session under general anesthesia with CT guidance. The second lung was punctured only if no complications occurred after treatment of the first lung. Five lung metastases maximum per patient were treated by RFA and prospectively followed. The primary endpoint was the evaluation of acute and delayed complications. Secondary endpoints were calculation of hospitalization duration, local efficacy, median survival, and median time to tumor progression. Local efficacy was evaluated on CT or positron emission tomography (PET) CT. Results: Sixty-seven patients were treated for bilateral lung metastases with RFA (mean age, 62 years). Single-session treatment was not possible in 40 due to severe pneumothoraces (n = 24), bilateral pleural contact (n = 14), and operational exclusions (n = 2). Twenty-seven (41%) received single-session RFA of lesions in both lungs for 66 metastases overall. Fourteen unilateral and four bilateral pneumothoraces occurred (18 overall, 66.7%). Unilateral (n = 13) and bilateral (n = 2) chest tube drainage was required. Median hospitalization was 3 (range, 2-8) days. Median survival was 26 months (95% confidence interval (CI), 19-33). Four recurrences on RFA sites were observed (4 patients). Median time to tumor progression was 9.5 months (95% CI, 4.2-23.5). Conclusions: Although performing single-session bilateral lung RFA is not always possible due to pneumothoraces after RFA of first lung, when it is performed, this technique is safe and effective.

Palussiere, Jean, E-mail: palussiere@bergonie.org; Gomez, Fernando; Cannella, Matthieu; Ferron, Stephane; Descat, Edouard [Institut Bergonie, Department of Radiology, Regional Cancer Centre (France); Fonck, Marianne [Institut Bergonie, Department of Digestive Oncology (France); Brouste, Veronique [Institut Bergonie, Clinical and Epidemiological Research Unit (France); Avril, Antoine [Institut Bergonie, Department of Surgery (France)

2012-08-15T23:59:59.000Z

458

Evaluation of the Cow Rumen Metagenome; Assembly by Single Copy Gene Analysis and Single Cell Genome Assemblies(Metagenomics Informatics Challenges Workshop: 10K Genomes at a Time)  

ScienceCinema (OSTI)

DOE JGI's Alex Sczyrba on "Evaluation of the Cow Rumen Metagenome" and "Assembly by Single Copy Gene Analysis and Single Cell Genome Assemblies" at the Metagenomics Informatics Challenges Workshop held at the DOE JGI on October 12-13, 2011.

Sczyrba, Alex [DOE JGI

2013-01-22T23:59:59.000Z

459

Flexi-Cluster: A Simulator for a Single Compute Cluster Flexi-Cluster is a flexible, discrete-event simulation model for a single compute cluster,  

E-Print Network [OSTI]

-event simulation model for a single compute cluster, such as might be deployed within a compute grid. The model

460

PHYSICAL REVIEW VOLUME 183; NUMBER 4 20 J ULY 1969 Single-Particle Theory of Fission*  

E-Print Network [OSTI]

manuscript received 6 December 1968) The single-particle aspects of nuclear fission theories are investigated

Note: This page contains sample records for the topic "nanoclusters out-perform single" 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

Comparing Single and Multiple Turbine Representations in a Wind Farm Simulation: Preprint  

SciTech Connect (OSTI)

This paper compares single turbine representation versus multiple turbine representation in a wind farm simulation.

Muljadi, E.; Parsons, B.

2006-03-01T23:59:59.000Z

462

ARTICLE IN PRESS Modelling the solids inflow and solids conveying of single-screw  

E-Print Network [OSTI]

ARTICLE IN PRESS Modelling the solids inflow and solids conveying of single-screw extruders using 1 March 2005 Abstract A new solids-conveying model for the single-screw extruder based convey- ing device is the plasticating single-screw extruder. In the plastics industry, single-screw

Thompson, Michael

463

Epitaxial graphene prepared by chemical vapor deposition on single crystal thin iridium films on sapphire  

E-Print Network [OSTI]

Epitaxial graphene prepared by chemical vapor deposition on single crystal thin iridium films Cedex 9, France (Dated: 15 March 2011) Uniform single layer graphene was grown on single-crystal Ir. These graphene layers have a single crystallographic orientation and a very low density of defects, as shown

Boyer, Edmond

464

Efficiency, accuracy, and stability issues in discrete-time simulations of single reed wind instruments  

E-Print Network [OSTI]

the basic nonlinear mechanisms that generate self-sustained oscillations in a single reed instrument. Due

Avanzini, Federico

465

Chapter 5: The Single Nucleotide Polymorphism Database (dbSNP) of Nucleotide Sequence Variation  

E-Print Network [OSTI]

Chapter 5: The Single Nucleotide Polymorphism Database (dbSNP) of Nucleotide Sequence Variation, and performance of functional studies. The Single Nucleotide Polymorphism database (dbSNP) is a public single-base nucleotide substitutions (also known as single nucleotide polymorphisms or SNPs), small

Levin, Judith G.

466

Temperature Dependence of Single CdSe/ZnS Quantum Dots Luminescence Lifetime  

E-Print Network [OSTI]

, such as quantum dots (QDs), has grown dramatically. These semiconductor QDs bridge the gap between single

Paris-Sud XI, Universit de

467

Ab Initio Studies of Vacancy-Defected Fullerenes and Single-Walled Carbon  

E-Print Network [OSTI]

Ab Initio Studies of Vacancy-Defected Fullerenes and Single-Walled Carbon Nanotubes LEI VINCENT LIU- vacancy-defected fullerenes, C60 and C70, and the single- and double-vacancy-defected single-walled carbon nanotubes (SWCNTs) were studied within density functional theory. The isomerization barriers for the single-vacancy

Wang, Yan Alexander

468

On the synchronization of synthetic genetic oscillators in single cells and colonies  

E-Print Network [OSTI]

Microfluidics . . . . . . . . . . . . . . . . . . . . . . . . . . .Recent applications of microfluidics inquantitative biology Microfluidics for single-cell

Mondragon-Palomino, Octavio; Mondragon-Palomino, Octavio

2012-01-01T23:59:59.000Z

469

A bosonic Josephson junction controlled by a single trapped ion  

E-Print Network [OSTI]

We theoretically investigate the properties of a double-well bosonic Josephson junction coupled to a single trapped ion. We find that the coupling between the wells can be controlled by the internal state of the ion, which can be used for studying mesoscopic entanglement between the two systems and to measure their interaction with high precision. As a particular example we consider a small $^{87}$Rb Bose-Einstein condensate controlled by a single $^{171}$Yb$^+$ ion. We calculate interwell coupling rates reaching 100 Hz, while the state dependence amounts to 10s of Hz for plausible values of the currently unknown s-wave scattering length between the atom and the ion. The system could be realized in an experiment by combining trapped ions with optical dipole traps for cold atoms or in a combined atom-ion micro trap, where both approaches are within reach using current technology.

Gerritsma, R; Doerk, H; Idziaszek, Z; Calarco, T; Schmidt-Kaler, F

2011-01-01T23:59:59.000Z

470

Method for harvesting rare earth barium copper oxide single crystals  

DOE Patents [OSTI]

A method of preparing high temperature superconductor single crystals is disclosed. The method of preparation involves preparing precursor materials of a particular composition, heating the precursor material to achieve a peritectic mixture of peritectic liquid and crystals of the high temperature superconductor, cooling the peritectic mixture to quench directly the mixture on a porous, wettable inert substrate to wick off the peritectic liquid, leaving single crystals of the high temperature superconductor on the porous substrate. Alternatively, the peritectic mixture can be cooled to a solid mass and reheated on a porous, inert substrate to melt the matrix of peritectic fluid while leaving the crystals melted, allowing the wicking away of the peritectic liquid. 2 figs.

Todt, V.R.; Sengupta, S.; Shi, D.

1996-04-02T23:59:59.000Z

471

Coplanar interdigitated grid detector with single electrode readout  

DOE Patents [OSTI]

The coplanar interdigitated grid technique with single electrode readout provides substantial spectral performance improvement over that of conventional full-area planar electrode detectors and over coplanar interdigitated grid detectors which measure the difference between the induced charge signals from two interdigitated coplanar grid electrodes. The signal from only one interdigitated grid electrode is read out. The signal response is optimized by changing the relative areas of the two grid electrodes and the bias applied across the detector. Only one preamplifier is needed and signal subtraction is not necessary. This eliminates the electronic noise contribution from the additional preamplifier used in the normal coplanar grid implementation, and conventional single-amplifier detector electronics can be used.

Luke, Paul N. (Castro Valley, CA)

2001-01-01T23:59:59.000Z

472

Single molecule imaging with longer x-ray laser pulses  

E-Print Network [OSTI]

In serial femtosecond crystallography, x-ray laser pulses do not need to outrun all radiation damage processes because Bragg diffraction exceeds the damage-induced background scattering for longer pulses ($\\sim$ 50--100 fs). This is due to a "self-gating pulse" effect whereby damage terminates Bragg diffraction prior to the pulse completing its passage through the sample, as if that diffraction were produced by a shorter pulse of equal fluence. We show here that a similar gating effect applies to single molecule diffraction with respect to spatially uncorrelated damage processes like ionization and ion diffusion. The effect is clearly seen in calculations of the diffraction contrast, by calculating the diffraction of average structure separately to the diffraction from statistical fluctuations of the structure due to damage ("damage noise"). Our results suggest that sub-nanometer single molecule imaging with longer pulses, like those produced at currently operating facilities, should not yet be ruled out. The...

Martin, Andrew V; Caleman, Carl; Quiney, Harry M

2015-01-01T23:59:59.000Z

473

Ultrafast dynamics of excitons in tetracene single crystals  

SciTech Connect (OSTI)

Ultrafast exciton dynamics in free standing 200 nm thin tetracene single crystals were studied at room temperature by femtosecond transient absorption spectroscopy in the visible spectral range. The complex spectrally overlapping transient absorption traces of single crystals were systematically deconvoluted. From this, the ultrafast dynamics of the ground, excited, and transition states were identified including singlet exciton fission into two triplet excitons. Fission is generated through both, direct fission of higher singlet states S{sub n} on a sub-picosecond timescale, and thermally activated fission of the singlet exciton S{sub 1} on a 40 ps timescale. The high energy Davydov component of the S{sub 1} exciton is proposed to undergo fission on a sub-picoseconds timescale. At high density of triplet excitons their mutual annihilation (triplet-triplet annihilation) occurs on a <10 ps timescale.

Birech, Zephania; Schwoerer, Heinrich, E-mail: heso@sun.ac.za [Laser Research Institute, Stellenbosch University, Stellenbosch 7600 (South Africa)] [Laser Research Institute, Stellenbosch University, Stellenbosch 7600 (South Africa); Schwoerer, Markus [Department of Physics, University of Bayreuth, Bayreuth (Germany)] [Department of Physics, University of Bayreuth, Bayreuth (Germany); Schmeiler, Teresa; Pflaum, Jens [Experimental Physics VI, University of Wrzburg and Bavarian Center for Applied Energy Research, Wrzburg (Germany)] [Experimental Physics VI, University of Wrzburg and Bavarian Center for Applied Energy Research, Wrzburg (Germany)

2014-03-21T23:59:59.000Z

474

Single-photon ultrashort-lived radionuclides: symposium proceedings  

SciTech Connect (OSTI)

The purpose was to define the current role and state-of-the-art regarding the development, clinical applications, and usefulness of generator-produced single-photon ultrashort-lived radionuclides (SPUSLR's) and to predict their future impact on medicine. Special emphasis was placed on the generator production of iridium-191, gold-195, and krypton-81. This report contains expanded summaries of the included papers. (ACR)

Paras, P.; Thiessen, J.W. (eds.)

1985-01-01T23:59:59.000Z

475

Growth and characterization of lithium yttrium borate single crystals  

SciTech Connect (OSTI)

Single crystals of 0.1% Ce doped Li{sub 6}Y(BO{sub 3}){sub 3} have been grown using the Czochralski technique. The photoluminescence study of these crystals shows a broad emission at ? 420 nm corresponding to Ce{sub 3+} emission from 5d?4f energy levels. The decay profile of this emission shows a fast response of ? 28 ns which is highly desirable for detector applications.

Singh, A. K.; Singh, S. G.; Tyagi, M.; Desai, D. G.; Sen, Shashwati [Technical Physics Division, Bhabha Atomic Research Centre, Mumbai- 400085 (India)

2014-04-24T23:59:59.000Z

476

Automated characterization of single-photon avalanche photodiode  

E-Print Network [OSTI]

We report an automated characterization of a single-photon detector based on commercial silicon avalanche photodiode (PerkinElmer C30902SH). The photodiode is characterized by I-V curves at different illumination levels (darkness, 10 pW and 10 uW), dark count rate and photon detection efficiency at different bias voltages. The automated characterization routine is implemented in C++ running on a Linux computer.

Aina M. M. Ghazali; Audun N. Bugge; Sebastien Sauge; Vadim Makarov

2012-02-08T23:59:59.000Z

477

Single ion heat engine with maximum efficiency at maximum power  

E-Print Network [OSTI]

We propose an experimental scheme to realize a nano heat engine with a single ion. An Otto cycle may be implemented by confining the ion in a linear Paul trap with tapered geometry and coupling it to engineered laser reservoirs. The quantum efficiency at maximum power is analytically determined in various regimes. Moreover, Monte Carlo simulations of the engine are performed that demonstrate its feasibility and its ability to operate at maximum efficiency of 30% under realistic conditions.

Obinna Abah; Johannes Rossnagel; Georg Jacob; Sebastian Deffner; Ferdinand Schmidt-Kaler; Kilian Singer; Eric Lutz

2012-05-07T23:59:59.000Z

478

Single electron beam rf feedback free electron laser  

DOE Patents [OSTI]

A free electron laser system and electron beam system for a free electron laser which uses rf feedback to enhance efficiency are described. Rf energy is extracted from a single electron beam by decelerating cavities and energy is returned to accelerating cavities using rf returns, such as rf waveguides, rf feedthroughs, resonant feedthroughs, etc. This rf energy is added to rf klystron energy to reduce the required input energy and thereby enhance energy efficiency of the system.

Brau, C.A.; Stein, W.E.; Rockwood, S.D.

1981-02-11T23:59:59.000Z

479

Nonlocality from N>2 independent single-photon emitters  

SciTech Connect (OSTI)

We demonstrate that intensity correlations of second order in the fluorescence light of N>2 single-photon emitters may violate locality while the visibility of the signal remains below 1/{radical}(2){approx_equal}71%. For this, we derive a homogeneous Bell-Wigner-type inequality, which can be applied to a broad class of experimental setups. We trace the violation of this inequality back to path entanglement created by the process of detection.

Thiel, C.; Wiegner, R.; Zanthier, J. von [Institut fuer Optik, Information und Photonik, Universitaet Erlangen-Nuernberg, D-91058 Erlangen (Germany); Agarwal, G. S. [Department of Physics, Oklahoma State University, Stillwater, Oklahoma 74078-3072 (United States)

2010-09-15T23:59:59.000Z

480

Density Functional Theory with Dissipation: Transport through Single Molecules  

SciTech Connect (OSTI)

A huge amount of fundamental research was performed on this grant. Most of it focussed on fundamental issues of electronic structure calculations of transport through single molecules, using density functional theory. Achievements were: (1) First density functional theory with dissipation; (2) Pseudopotential plane wave calculations with master equation; (3) Weak bias limit; (4) Long-chain conductance; and (5) Self-interaction effects in tunneling.

Kieron Burke

2012-04-30T23:59:59.000Z

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


481

Single-shell tank interim stabilization project plan  

SciTech Connect (OSTI)

Solid and liquid radioactive waste continues to be stored in 149 single-shell tanks at the Hanford Site. To date, 119 tanks have had most of the pumpable liquid removed by interim stabilization. Thirty tanks remain to be stabilized. One of these tanks (C-106) will be stabilized by retrieval of the tank contents. The remaining 29 tanks will be interim stabilized by saltwell pumping. In the summer of 1997, the US Department of Energy (DOE) placed a moratorium on the startup of additional saltwell pumping systems because of funding constraints and proposed modifications to the Hanford Federal Facility Agreement and Consent Order (Tri-Party Agreement) milestones to the Washington State Department of Ecology (Ecology). In a letter dated February 10, 1998, Final Determination Pursuant to Hanford Federal Facility Agreement and Consent Order (Tri-Party Agreement) in the Matter of the Disapproval of the DOE`s Change Control Form M-41-97-01 (Fitzsimmons 1998), Ecology disapproved the DOE Change Control Form M-41-97-01. In response, Fluor Daniel Hanford, Inc. (FDH) directed Lockheed Martin Hanford Corporation (LNMC) to initiate development of a project plan in a letter dated February 25, 1998, Direction for Development of an Aggressive Single-Shell Tank (SST) Interim Stabilization Completion Project Plan in Support of Hanford Federal Facility Agreement and Consent Order (Tri-Party Agreement). In a letter dated March 2, 1998, Request for an Aggressive Single-Shell Tank (SST) Interim Stabilization Completion Project Plan, the DOE reaffirmed the need for an aggressive SST interim stabilization completion project plan to support a finalized Tri-Party Agreement Milestone M-41 recovery plan. This project plan establishes the management framework for conduct of the TWRS Single-Shell Tank Interim Stabilization completion program. Specifically, this plan defines the mission needs and requirements; technical objectives and approach; organizational structure, roles, responsibilities, and interfaces; and operational methods. The plan is based on realistic assumptions and addresses three separate funding scenarios.

Ross, W.E.

1998-03-27T23:59:59.000Z

482

Single shot cell irradiations with laser-driven protons  

SciTech Connect (OSTI)

Ion beams are relevant for radiobiological studies in basic research and for application in tumor therapy. Here we present a method to generate nanosecond proton bunches with single shot doses of up to 7 Gray by a tabletop high-power laser. Although in their infancy, laser-ion accelerators allow studying fast radiobiological processes at small-scale laboratories as exemplarily demonstrated by measurements of the relative biological effectiveness of protons in human tumor cells.

Humble, N.; Schmid, T. E.; Zlobinskaya, O.; Wilkens, J. J. [Department of Radiation Oncology, Klinikum rechts der Isar, Technische Universitt Mnchen (Germany)] [Department of Radiation Oncology, Klinikum rechts der Isar, Technische Universitt Mnchen (Germany); Allinger, K.; Hilz, P.; Ma, W.; Reinhardt, S. [Physics Department, Ludwig-Maximilians-Universitt Mnchen (Germany)] [Physics Department, Ludwig-Maximilians-Universitt Mnchen (Germany); Bin, J.; Kiefer, D.; Schreiber, J. [Max Planck Institute of Quantum Optics, Garching (Germany)] [Max Planck Institute of Quantum Optics, Garching (Germany); Drexler, G. A.; Friedl, A. [Department of Radiation Oncology, Ludwig-Maximilians-Universitt Mnchen (Germany)] [Department of Radiation Oncology, Ludwig-Maximilians-Universitt Mnchen (Germany)

2013-07-26T23:59:59.000Z

483

Synthesis and characterization of single-crystal indium nitride nanowires  

E-Print Network [OSTI]

in visible light range, and high-efficiency solar cells.2 Furthermore, InN has distinct advantages over Ga-solid (VLS) approach using a single-zone furnace at 500 °C,6 and a diameter distribution from 40 to 80 nm-zone furnace for InN nanowire synthe- sis. This technique allowed us to use a high-temperature zone (700 °C

Zhou, Chongwu

484

Higgs boson with a single generation in the bulk  

E-Print Network [OSTI]

We study Higgs boson properties in a model where three fermionic families of the Standard Model arise from a single generation in (5+1) dimensions. We demonstrate that, in spite of a non-trivial background, properties of the four-dimensional Higgs particle are almost indistinguishable from those in the Standard Model. We also argue that it is more natural to have a light Higgs boson in this model.

M. V. Libanov; E. Y. Nugaev

2005-12-18T23:59:59.000Z

485

Single beam optical vortex tweezers with tunable orbital angular momentum  

SciTech Connect (OSTI)

We propose a single beam method for generating optical vortices with tunable optical angular momentum without altering the intensity distribution. With the initial polarization state varying from linear to circular, we gradually control the torque transferred to the trapped non-absorbing and non-birefringent silica beads. The continuous transition from the maximum rotation speed to zero without changing the trapping potential gives a way to study the complex tribological interactions.

Gecevi?ius, Mindaugas; Drevinskas, Rokas, E-mail: rd1c12@orc.soton.ac.uk; Beresna, Martynas; Kazansky, Peter G. [Optoelectronics Research Centre, University of Southampton, Southampton SO17 1BJ (United Kingdom)

2014-06-09T23:59:59.000Z

486

Nanoantenna enhancement for telecom-wavelength superconducting single photon detectors  

E-Print Network [OSTI]

Superconducting nanowire single photon detectors are rapidly emerging as a key infrared photon-counting technology. Two front-side-coupled silver dipole nanoantennas, simulated to have resonances at 1480 nm and 1525 nm, were fabricated in a two-step process. An enhancement of 50% to 130% in the system detection efficiency was observed when illuminating the antennas. This offers a pathway to increasing absorption into superconducting nanowires, creating larger active areas, and achieving more efficient detection at longer wavelengths.

Heath, Robert M; Drysdale, Timothy D; Miki, Shigehito; Giannini, Vincenzo; Maier, Stefan A; Hadfield, Robert H

2015-01-01T23:59:59.000Z

487

Experimental nonclassicality of single-photon-added thermal light states  

SciTech Connect (OSTI)

We report the experimental realization and tomographic analysis of quantum light states obtained by exciting a classical thermal field by a single photon. Such states, although completely incoherent, possess a tunable degree of quantumness which is here exploited to put to a stringent experimental test some of the criteria proposed for the proof and the measurement of state nonclassicality. The quantum character of the states is also given in quantum information terms by evaluating the amount of entanglement that they can produce.

Zavatta, Alessandro [Istituto Nazionale di Ottica Applicata (CNR), L.go E. Fermi, 6, I-50125, Florence (Italy); Department of Physics, University of Florence, I-50019 Sesto Fiorentino, Florence (Italy); Parigi, Valentina [Department of Physics, University of Florence, I-50019 Sesto Fiorentino, Florence (Italy); LENS, Via Nello Carrara 1, 50019 Sesto Fiorentino, Florence (Italy); Bellini, Marco [Istituto Nazionale di Ottica Applicata (CNR), L.go E. Fermi, 6, I-50125, Florence (Italy); LENS, Via Nello Carrara 1, 50019 Sesto Fiorentino, Florence (Italy)

2007-05-15T23:59:59.000Z

488

Single-Step Implementation of Universal Quantum Gates  

SciTech Connect (OSTI)

We construct optimized implementations of the controlled-NOT and other universal two-qubit gates that, unlike many of the previously proposed protocols, are carried out in a single step. The new protocols require tunable interqubit couplings but, in return, show a significant improvement in the quality of gate operations. We make specific predictions for coupled Josephson junction qubits and compare them with the results of recent experiments.

Grigorenko, I.A.; Khveshchenko, D.V. [Department of Physics and Astronomy, University of North Carolina, Chapel Hill, North Carolina 27599 (United States)

2005-09-09T23:59:59.000Z

489

ARM - Field Campaign - Summer 1994 Single Column Model IOP  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth (AOD) by Microtops Atmospheric Optical DepthgovCampaignsSpring 1994 Single

490

Production of single-walled carbon nanotube grids  

DOE Patents [OSTI]

A method of forming a nanotube grid includes placing a plurality of catalyst nanoparticles on a grid framework, contacting the catalyst nanoparticles with a gas mixture that includes hydrogen and a carbon source in a reaction chamber, forming an activated gas from the gas mixture, heating the grid framework and activated gas, and controlling a growth time to generate a single-wall carbon nanotube array radially about the grid framework. A filter membrane may be produced by this method.

Hauge, Robert H; Xu, Ya-Qiong; Pheasant, Sean

2013-12-03T23:59:59.000Z

491

Stylized features of single-nucleon momentum distributions  

E-Print Network [OSTI]

[Background:] Nuclear short-range correlations (SRC) typically manifest themselves in the tail parts of the single-nucleon momentum distributions. [Purpose:] To develop an approximate flexible method for computing the single-nucleon momentum distributions throughout the whole mass table, thereby including the majority of the effects of SRC. To use this method to study the mass and isospin dependence of SRC. [Method:] The low-order cluster approximation (LCA) adopted in this work, corrects mean-field models for correlations by shifting the complexity induced by the SRC from the wave functions to the operators. Due to the local character of the SRC, it is argued that the expansion of these operators can be truncated to a low order. [Results:] After inclusion of the central and tensor correlations, the LCA can generate the SRC-related features of the single-nucleon momentum distribution like the high-momentum tails. These are dominated by correlations operating on mean-field pairs with vanishing relative radial and angular-momentum quantum numbers. In asymmetric nuclei, the correlations make the average kinetic energy for the minority nucleons larger than for the majority nucleons. [Conclusions:] The LCA method explains the dominant role of proton-neutron pairs in generating the SRC and provides predictions for the ratio of the amount of correlated proton-proton to proton-neutron pairs which are in line with the observations.

Maarten Vanhalst; Wim Cosyn; Jan Ryckebusch

2014-09-05T23:59:59.000Z

492

Photonic quantum walk in a single beam with twisted light  

E-Print Network [OSTI]

Inspired by the classical phenomenon of random walk, the concept of quantum walk has emerged recently as a powerful platform for the dynamical simulation of complex quantum systems, entanglement production and universal quantum computation. Such a wide perspective motivates a renewing search for efficient, scalable and stable implementations of this quantum process. Photonic approaches have hitherto mainly focused on multi-path schemes, requiring interferometric stability and a number of optical elements that scales quadratically with the number of steps. Here we report the experimental realization of a quantum walk taking place in the orbital angular momentum space of light, both for a single photon and for two simultaneous indistinguishable photons. The whole process develops in a single light beam, with no need of interferometers, and requires optical resources scaling linearly with the number of steps. Our demonstration introduces a novel versatile photonic platform for implementing quantum simulations, based on exploiting the transverse modes of a single light beam as quantum degrees of freedom.

Filippo Cardano; Francesco Massa; Ebrahim Karimi; Sergei Slussarenko; Domenico Paparo; Corrado de Lisio; Fabio Sciarrino; Enrico Santamato; Lorenzo Marrucci

2014-03-19T23:59:59.000Z

493

Single beam Fourier transform digital holographic quantitative phase microscopy  

SciTech Connect (OSTI)

Quantitative phase contrast microscopy reveals thickness or height information of a biological or technical micro-object under investigation. The information obtained from this process provides a means to study their dynamics. Digital holographic (DH) microscopy is one of the most used, state of the art single-shot quantitative techniques for three dimensional imaging of living cells. Conventional off axis DH microscopy directly provides phase contrast images of the objects. However, this process requires two separate beams and their ratio adjustment for high contrast interference fringes. Also the use of two separate beams may make the system more vulnerable to vibrations. Single beam techniques can overcome these hurdles while remaining compact as well. Here, we describe the development of a single beam DH microscope providing whole field imaging of micro-objects. A hologram of the magnified object projected on to a diffuser co-located with a pinhole is recorded with the use of a commercially available diode laser and an arrayed sensor. A Fourier transform of the recorded hologram directly yields the complex amplitude at the image plane. The method proposed was investigated using various phase objects. It was also used to image the dynamics of human red blood cells in which sub-micrometer level thickness variation were measurable.

Anand, A., E-mail: arun-nair-in@yahoo.com; Chhaniwal, V. K.; Mahajan, S.; Trivedi, V. [Optics Laboratory, Applied Physics Department, Faculty of Technology and Engineering, M.S. University of Baroda, Vadodara 390001 (India)] [Optics Laboratory, Applied Physics Department, Faculty of Technology and Engineering, M.S. University of Baroda, Vadodara 390001 (India); Faridian, A.; Pedrini, G.; Osten, W. [Institut fr Technische Optik, Universitt Stuttgart, Pfaffenwaldring 9, 70569 Stuttgart (Germany)] [Institut fr Technische Optik, Universitt Stuttgart, Pfaffenwaldring 9, 70569 Stuttgart (Germany); Dubey, S. K. [Siemens Technology and Services Pvt. Ltd, Corporate TechnologyResearch and Technology Centre, Bangalore 560100 (India)] [Siemens Technology and Services Pvt. Ltd, Corporate TechnologyResearch and Technology Centre, Bangalore 560100 (India); Javidi, B. [Department of Electrical and Computer Engineering, U-4157, University of Connecticut, Storrs, Connecticut 06269-2157 (United States)] [Department of Electrical and Computer Engineering, U-4157, University of Connecticut, Storrs, Connecticut 06269-2157 (United States)

2014-03-10T23:59:59.000Z

494

Evidence for single top quark production using Bayesian neural networks  

SciTech Connect (OSTI)

We present results of a search for single top quark production in p{bar p} collisions using a dataset of approximately 1 fb{sup -1} collected with the D0 detector. This analysis considers the muon+jets and electron+jets final states and makes use of Bayesian neural networks to separate the expected signals from backgrounds. The observed excess is associated with a p-value of 0.081%, assuming the background-only hypothesis, which corresponds to an excess over background of 3.2 standard deviations for a Gaussian density. The p-value computed using the SM signal cross section of 2.9 pb is 1.6%, corresponding to an expected significance of 2.2 standard deviations. Assuming the observed excess is due to single top production, we measure a single top quark production cross section of {sigma}(p{bar p} {yields} tb + X, tqb + X) = 4.4 {+-} 1.5 pb.

Kau, Daekwang; /Florida State U.

2007-08-01T23:59:59.000Z

495

Single microbe trap and release in sub-microfluidics  

SciTech Connect (OSTI)

Lab-on-a-chip systems have substantially impacted the way life-sciences are explored; life on earth, however, comprises mostly of microbes, which due to their sub-micron dimensions and high mobility are more challenging to dynamically manipulate on-a-chip. To address this challenge, we developed a high resolution microfluidic system (submicrofluidics) fabricated by direct electron beam lithography that is capable of trapping single microbes and releasing them upon demand. The fabrication method enabled the integration of sub-micron indentations (400 nm) with millimetre-scale fluidic channels rapidly in a single processing step. The larger channels deliver the cell suspension and reagents, while the sub-micron indentations immobilize the cells by locally increasing the hydrodynamic resistance. By volume exclusion, single cell trapping was possible in this system without any surface treatment. By increasing the flow rate, the microbes overcome the trap barrier and pass through the narrow indentation without undergoing lysis with kinetics that depend on their size. The fabrication method and its performance are described, along with microbial characterisations using E. coli.

Vasdekis, Andreas E.

2013-05-08T23:59:59.000Z

496

Nanoscale optical positioning of single quantum dots for bright, pure, and on-demand single-photon emission  

E-Print Network [OSTI]

Self-assembled, epitaxially-grown InAs/GaAs quantum dots are promising semiconductor quantum emitters that can be integrated on a chip for a variety of photonic quantum information science applications. However, self-assembled growth results in an essentially random in-plane spatial distribution of quantum dots, presenting a challenge in creating devices that exploit the strong interaction of single quantum dots with highly confined optical modes. Here, we present a photoluminescence imaging approach for locating single quantum dots with respect to alignment features with an average (minimum) position uncertainty efficiency (48 % +/- 5 % into a 0.4 numerical aperture lens, close to the theoretically predicted value of 50 %), low multiphoton prob...

Sapienza, Luca; Badolato, Antonio; Srinivasan, Kartik

2015-01-01T23:59:59.000Z

497

Physical properties of single crystalline BaSn{sub 5}  

SciTech Connect (OSTI)

We present a comprehensive study of the binary intermetallic superconductor, BaSn{sub 5}. High-quality single crystalline BaSn{sub 5} was grown out of a Sn flux. Detailed thermodynamic and transport measurements were performed to study BaSn{sub 5}'s normal and superconducting state properties. This material appears to be a strongly coupled, multiband superconductor. H{sub c2}(T) is almost isotropic. De Haasvan Alphen oscillations were observed and two effective masses were estimated from the FFT spectra. Hydrostatic pressure causes a decrease in the superconducting transition temperature at the rate of ??0.053??0.001?K/kbar.

Lin, Xiao; Budko, Sergey; Canfield, Paul

2012-01-30T23:59:59.000Z

498

High performance static latches with complete single event upset immunity  

DOE Patents [OSTI]

An asymmetric response latch providing immunity to single event upset without loss of speed. The latch has cross-coupled inverters having a hardened logic state and a soft state, wherein the logic state of the first inverter can only be changed when the voltage on the coupling node of that inverter is low and the logic state of the second inverter can only be changed when the coupling of that inverter is high. One of more of the asymmetric response latches may be configured into a memory cell having complete immunity, which protects information rather than logic states.

Corbett, Wayne T. (Albuquerque, NM); Weaver, Harry T. (Albuquerque, NM)

1994-01-01T23:59:59.000Z

499

Full light absorption in single arrays of spherical nanoparticles  

E-Print Network [OSTI]

In this paper we show that arrays of core-shell nanoparticles function as effective thin absorbers of light. In contrast to known metamaterial absorbers, the introduced absorbers are formed by single planar arrays of spherical inclusions and enable full absorption of light incident on either or both sides of the array. We demonstrate possibilities for realizing different kinds of symmetric absorbers, including resonant, ultra-broadband, angularly selective, and all-angle absorbers. The physical principle behind these designs is explained considering balanced electric and magnetic responses of unit cells. Photovoltaic devices and thermal emitters are the two most important potential applications of the proposed designs.

Ra'di, Y; Kosulnikov, S U; Omelyanovich, M M; Morits, D; Osipov, A V; Simovski, C R; Tretyakov, S A

2015-01-01T23:59:59.000Z

500

Single-photoelectron noise reduction in scintillation detectors  

SciTech Connect (OSTI)

The 1994--95 search at SLAC for mulicharged particles used four 21 {times} 21 {times} 130-cm{sup 3} Bicron 408 scintillation counters to detect a signal at the single-photoelectron level. The competing noise requiring minimization was due to a combination of PM tube (8-inch Thorne EMI 9353KA) afterpulsing and ambient radiation-induced scintillator luminescence. A very slow decay (> 30 {mu}s) component was observed and received particular attention. Efforts to reduce the SPE noise included photomultiplier tube base modifications, detector shielding and cooling, signal amplification, and veto procedures.

Marvin, T.P. [Southern Oregon State College, Ashland, OR (United States); The SLAC mQ Collaboration

1995-10-01T23:59:59.000Z