Now showing items 330-349 of 1326

  • Effect of solar radiation on suspension bridge performance 

    Westgate, Robert; Koo, Ki-Young; Brownjohn, James (American Society of Civil Engineers (ASCE), 2015)
    Observations of a U.K. suspension bridge show that thermal expansion and contraction cycles do not follow simple linear relationships with a single temperature value and that time lag and temperature distribution can be ...
  • The effect of thermal anisotropies during crystallization in phase-change recording media 

    Belmont, M. R.; Aziz, Mustafa M.; Wright, C. David (American Institute of Physics, 2008)
    The problem discussed is the significance of anisotropies in the thermal parameters of different phases of phase-change materials as used for data storage purposes during recording. The particular phase change in interest ...
  • Effective diffusion of scalar fields in a chaotic flow 

    Turner, M. R.; Gilbert, Andrew D.; Thuburn, John (American Institute of Physics, 2008)
    The advection of a tracer field in a fluid flow can create complex scalar structures and increase the effect of weak diffusion by orders of magnitude. One tool to quantify this is to measure the flux of scalar across contour ...
  • Effects of frozen soil on soil temperature, spring infiltration, and runoff: results from the PILPS 2(d) experiment at Valdai, Russia 

    Luo, Lifeng; Robock, Alan; Vinnikov, Konstantin Y.; Schlosser, C. Adam; Slater, Andrew G.; Boone, Aaron; Braden, Harald; Cox, Peter M.; De Rosnay, Patricia; Dickinson, Robert E.; Dai, Yongjiu; Duan, Qingyun; Etchevers, Pierre; Henderson-Sellers, Ann; Gedney, Nicola; Gusev, Yevgeniy M.; Habets, Florence; Kim, Jinwon; Kowalczyk, Eva; Mitchell, Ken; Nasonova, Olga N.; Noilhan, Joel; Pitman, Andrew; Schaake, John; Shmakin, Andrey B.; Smirnova, Tatiana G.; Wetzel, Peter; Xue, Yongkang; Yang, Zong-Liang; Zeng, Qing-Cun (American Meteorological Society, 2009-12-18)
    The Project for Intercomparison of Land-Surface Parameterization Schemes phase 2(d) experiment at Valdai, Russia, offers a unique opportunity to evaluate land surface schemes, especially snow and frozen soil parameterizations. ...
  • The effects of low impact development on urban flooding under different rainfall characteristics 

    Qin, Hua-peng; Li, Zhuo-xi; Fu, Guangtao (Elsevier, 2013)
    Low impact development (LID) is generally regarded as a more sustainable solution for urban stormwater management than conventional urban drainage systems. However, its effects on urban flooding at a scale of urban drainage ...
  • Efficiency droop in InSb/AlInSb quantum-well light-emitting diodes 

    Nash, G.R.; Mirza, B.I. (American Institute of Physics (AIP), 2013)
    Efficiency droop in InSb/AlxIn1−xSb quantum-well light-emitting diodes has been investigated as a function of temperature for devices containing 20 nm, 40 nm, and 100 nm wide quantum well active regions. The amount of droop ...
  • Efficiency of Exciton and Charge Carrier Photogeneration in a Semiconducting Polymer 

    Hendry, Euan; Schins, Juleon M.; Candeias, L. P.; Siebbeles, L. D. A.; Bonn, Mischa (American Physical Society, 2004)
    We determine the efficiencies for the formation of excitons and charge carriers following ultrafast photoexcitation of a semiconducting polymer (MEH-PPV). The simultaneous, quantitative determination of exciton and charge ...
  • Efficiency of radiative emission from thin films of a light-emitting conjugated polymer 

    Wasey, J. A. E.; Safanov, A.; Samuel, I. D. W.; Barnes, William L. (American Physical Society, 2001)
    We examine the efficiency of radiative emission from thin layers of light-emitting conjugated polymers. We compare our experimental results for photoluminescence of the conjugated polymer poly(2-methoxy, 5-(2′-ethyl-hexyloxy) ...
  • Efficient coupling of surface plasmon polaritons to radiation using a bi-grating 

    Worthing, P. T.; Barnes, William L. (American Institute of Physics, 2001)
    A nanostructured surface in the form of a bi-grating is shown to efficiently couple surface plasmon polaritons to free-space radiation in the visible part of the spectrum. Coupling was achieved for all propagation directions ...
  • Efficiently identifying pareto solutions when objective values change 

    Fieldsend, Jonathan E.; Everson, Richard M. (ACM, 2014)
    In many multi-objective problems the objective values assigned to a particular design can change during the course of an optimisation. This may be due to dynamic changes in the problem itself, or updates to estimated ...
  • Eight new T4.5-T7.5 dwarfs discovered in the UKIDSS large area survey data release 1 

    Lodieu, N.; Pinfield, D.J.; Leggett, S.K.; Jameson, R.F.; Mortlock, D.J.; Warren, S.J.; Burningham, B.; Lucas, P.W.; Chiu, K.; Liu, M.C.; Venemans, B.P.; McMahon, R.G.; Allard, F.; Baraffe, I.; Navascue, D.B.Y.; Carraro, G.; Casewell, S.L.; Chabrier, G.; Chappelle, R.J.; Clarke, F.; Day-Jones, A.C.; Deacon, N.R.; Dobbie, P.D.; Folkes, S.L.; Hambly, N.C.; Hewett, P.C.; Hodgkin, S.T.; Jones, H.R.A.; Kendall, T.R.; Magazzu, A.; Martin, E.L.; McCaughrean, M.J.; Nakajima, T.; Pavlenko, Y.; Tamura, M.; Tinney, C.G.; Osorio, M.R.Z. (Oxford University Press for Royal Astronomical Society, 2007)
    We present eight new T4.5-T7.5 dwarfs identified in the UKIRT (United Kingdom Infrared Telescope) Infrared Deep Sky Survey (UKIDSS) Large Area Survey (LAS) Data Release 1 (DR1). In addition we have recovered the T4.5 dwarf ...
  • ElAM: A computer program for the analysis and representation of anisotropic elastic properties 

    Marmier, Arnaud; Lethbridge, Zoe A. D.; Walton, Richard I.; Smith, Christopher W.; Parker, Stephen C.; Evans, Kenneth E. (Elsevier, 2010)
    The continuum theory of elasticity has been used for more than a century and has applications in many fields of science and engineering. It is very robust, well understood and mathematically elegant. In the isotropic case ...
  • Version 4.0 

    Marmier, Arnaud (2009-08-19)
    The continuum theory of elasticity has been used for more than a century and has applications in many fields of science and engineering. It is very robust, well understood and mathematically elegant. In the isotropic case ...
  • Elastic anisotropy and extreme Poisson's ratios in single crystals 

    Lethbridge, Zoe A. D.; Walton, Richard I.; Marmier, Arnaud; Smith, Christopher W.; Evans, Kenneth E. (Elsevier, 2010)
    The relationship between elastic anisotropy and extreme Poisson’s ratio behaviour (either positive or negative) in single-crystalline materials has been investigated using experimentally determined single-crystal elastic ...
  • Electric dipole moment oscillations in Aharonov-Bohm quantum rings 

    Alexeev, Arseny; Portnoi, M.E. (American Physical Society, 2012)
    Magneto-oscillations of the electric dipole moment are predicted and analyzed for a single-electron nanoscale ring pierced by a magnetic flux (an Aharonov-Bohm ring) and subjected to an electric field in the ring's plane. ...
  • Electromagnetic energy-momentum in dispersive media 

    Philbin, Thomas G. (American Physical Society, 2011)
    The standard derivations of electromagnetic energy and momentum in media take Maxwell’s equations as the starting point. It is well known that for dispersive media this approach does not directly yield exact expressions ...
  • Electromagnetic resonances of a multilayer metal-dielectric stack 

    Gadsdon, Martyn Richard; Parsons, J.; Sambles, J. Roy (Optical Society of America, 2009)
    The electromagnetic resonances of multilayer metal–dielectric stacks are investigated. These structures support periodic bandpass regions, whose band edges may be predicted by considering the character of the fields inside ...
  • Electromagnetic response of closely spaced metal meshes 

    Taylor, Melita C.; Hibbins, Alastair P.; Sambles, J. Roy (American Physical Society, 2012)
    The electromagnetic transmittance of a double layer of identical square arrays of square holes (mesh) in a perfectly conducting sheet is analytically modeled using a modal matching technique. The structure supports families ...
  • Electron transport in TiO2 probed by THz time-domain spectroscopy 

    Hendry, Euan; Wang, F.; Shan, Jie; Heinz, Tony F.; Bonn, Mischa (American Physical Society, 2004)
    Electron transport in crystalline TiO2 (rutile phase) is investigated by frequency-dependent conductivity measurements using THz time-domain spectroscopy. Transport is limited by electron-phonon coupling, resulting in a ...
  • Electron transport of WS2 transistors in a hexagonal boron nitride dielectric environment. 

    Withers, Freddie; Bointon, Thomas H.; Hudson, David; Russo, Saverio; Craciun, Monica F. (Nature Publishing Group, 2014)
    We present the first study of the intrinsic electrical properties of WS2 transistors fabricated with two different dielectric environments WS2 on SiO2 and WS2 on h-BN/SiO2, respectively. A comparative analysis of the ...