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Now showing items 330-349 of 1172

  • Erroneous arctic temperature trends in the ERA-40 reanalysis: A closer look 

    Screen, James A.; Simmonds, Ian (American Meteorological Society, 2011)
    Atmospheric reanalyses can be useful tools for examining climate variability and change; however, they must be used cautiously because of time-varying biases that can induce artificial trends. This study explicitly documents ...
  • Error bounds in the gap metric for dissipative balanced approximations 

    Guiver, Chris; Opmeer, Mark R. (Elsevier, 2013)
    We derive an error bound in the gap metric for positive real balanced truncation and positive real singular perturbation approximation. We prove these results by working in the context of dissipative driving-variable ...
  • Establishing the database of inundation potential in Taiwan 

    Chen, Albert S.; Hsu, Ming-Hsi; Teng, Wei-Hsien; Huang, Chen-Jia; Yeh, Sen-Hae; Lien, Wan-Yu (Springer Verlag, 2006)
    The structural measure was the major solution for flood defense in Taiwan. However, the measure is always limited to the design standard and cannot prevent the damages when floods exceed certain scale. Therefore, non-structural ...
  • Estimates of past and future ozone trends from multi-model simulations using a flexible smoothing spline methodology 

    Scinocca, John F.; Stephenson, David B.; Bailey, Trevor C.; Austin, John (American Geophysical Union, 2010)
    A novel additive model analysis of multimodel trends is presented. The approach is motivated by, and particularly suited to, the analysis of multimodel time series of varying length. This Time series Additive Model (TSAM) ...
  • Estimating Classification Uncertainty of Bayesian Decision Tree Technique on Financial Data 

    Schetinin, Vitaly; Fieldsend, Jonathan E.; Partridge, Derek; Krzanowski, Wojtek J.; Everson, Richard M.; Bailey, Trevor C.; Hernandez, Adolfo (Springer Berlin Heidelberg, 2007)
    Summary Bayesian averaging over classification models allows the uncertainty of classification outcomes to be evaluated, which is of crucial importance for making reliable decisions in applications such as financial in ...
  • Estimation of the urban heat island for UK climate change projections 

    Kershaw, Tristan; Sanderson, M.; Coley, David; Eames, Matthew E. (SAGE Publications, 2010)
    Cities are known to exert a significant influence on their local climate, and are generally warmer than their surroundings. However, climate models generally do not include a representation of urban areas, and so climate ...
  • Evaluation of a dual-scales method to measure weight-bearing through the legs, and effects of weight-bearing inequalities on hip bone mineral density and leg lean tissue mass. 

    Hopkins, Susan; Smith, Christopher; Toms, Andrew; Brown, Mary; Welsman, Joanne; Knapp, Karen M. (Foundation for Rehabilitation Information, 2013)
    OBJECTIVE: To investigate: the accuracy of measuring relative left/right weight-bearing using two identically calibrated weighing scales; the short-term weight-bearing tendencies in a general population of 9 participants ...
  • The evaluation of directionally writhing polymers 

    Prior, C.B.; Berger, M.A. (arXiv.org, 2010)
    We discuss the appropriate techniques for modelling the geometry of open ended elastic polymer molecules. The molecule is assumed to have fixed endpoints on a boundary surface. In particular we discuss the concept of the ...
  • An evaluation of flysch provenance - example from the Gramscatho Group of south Cornwall 

    Shail, R.K.; Floyd, P.A. (The Ussher Society, 1988)
    Recent work has suggested that plate tectonic environments can be reconstructed utilizing clast mode petrography and bulk geochemistry of flysch sandstones. An assessment of the relative effects of processes that may modify ...
  • An evaluation of the quality of metallurgical coking coal seams within the north block of Eastern Parvadeh coal deposit, Tabas, Central Iran 

    Wetherelt, A.; Ahangaran, D. K.; Afzal, P.; Yasrebi, A. B.; Foster, P. J.; Darestani, R. A. (Technical Faculty Bor, Serbia, 2011)
    The aim of this study is to evaluate the quality of the metallurgical coking coal seams in the north block of Eastern Parvadeh coal deposit located in Tabas, Central Iran. Quality particulars of the main coking coal seams ...
  • Evaporation of the planet HD 189733b observed in H I Lyman-α 

    Lecavelier des Etangs, A.; Ehrenreich, D.; Vidal-Madjar, A.; Ballester, G.; Desert, J.-M.; Ferlet, R.; Hebrard, G.; Sing, David K.; Tchakoumegni, K.-O.; Udry, S. (EDP Sciences for European Southern Observatory (ESO), 2010)
    We observed three transits of the extrasolar planet HD 189733b in H i Lyman-α and in a few other lines in the ultraviolet with HST/ACS, in the search for atmospheric signatures. We detect a transit signature in the Lyman-α ...
  • Event collisions in systems with delayed switches 

    Sieber, J.; Kowalczyk, P. (Elsevier, 2006)
    We study dynamical systems that switch between two different vector fields depending on a discrete variable. If the two vector fields have linearly unstable fixed points and the switch is subject to a hysteresis and to a ...
  • Evidence for hot electron magnetocurrent in a double barrier tunnel junction device 

    Ladak, S.; Hicken, R.J. (2005)
    Hot electron transport has been studied in three terminal Ta/TaOx/Co/AlOx/Ni81Fe19 structures fabricated by magnetron sputtering through shadow masks. With the Co base and Ta collector connected together via a small resistor, ...
  • Evidence for Magnetic Flux Saturation in Rapidly Rotating M Stars 

    Reiners, A.; Basri, G.; Browning, Matthew K. (American Astronomical Society / IOP Publishing, 2009)
    We present magnetic flux measurements in seven rapidly rotating M dwarfs. Our sample stars have X-ray and Hα emission indicative of saturated emission, i.e., emission at a high level, independent of rotation rate. Our ...
  • Evidence of a barrier oxidation dependence on the interfacial magnetism in Co/alumina based magnetic tunnel junctions 

    Telling, N.D.; van der Laan, Gerrit; Ladak, S.; Hicken, R.J.; Arenholz, E. (American Institute of Physics, 2006)
    Soft x-ray absorption spectroscopy and magnetic circular dichroism at the Co L-2,L-3 edge have been applied to explore the near-interfacial magnetism of Co electrodes in Co/alumina based magnetic tunnel junctions. By taking ...
  • Evidence of local moment formation in Co-based Heusler alloys 

    Telling, N.D.; Keatley, Paul Steven; van der Laan, Gerrit; Hicken, R.J.; Arenholz, E.; Sakuraba, Y.; Oogane, M.; Ando, Y.; Takanashi, K.; Sakuma, A.; Miyazaki, T. (American Physical Society, 2008)
    We examine the formation of local moments in Heusler alloys of the composition Co(2)MnZ (where Z=Si or Al) using the combined techniques of x-ray magnetic circular and linear dichroism. The existence of local moments in ...
  • The evolution of connectivity in metabolic networks. 

    Pfeiffer, Thomas; Soyer, Orkun S.; Bonhoeffer, Sebastian (Public Library of Science, 2005)
    Processes in living cells are the result of interactions between biochemical compounds in highly complex biochemical networks. It is a major challenge in biology to understand causes and consequences of the specific design ...
  • Evolution of Kelvin-Helmholtz activity on the dusk flank magnetopause 

    Foullon, Claire; Farrugia, Charles J.; Fazakerley, Andrew; Owen, Christopher J.; Gratton, F.T.; Torbert, R.B. (American Geophysical Union (AGU), 2008)
    Our purpose is to characterize the evolution of the magnetopause Kelvin-Helmholtz (KH) wave activity with changes in thickness of the adjacent boundary layer, geomagnetic latitude and interplanetary magnetic field (IMF) ...
  • Evolution of response dynamics underlying bacterial chemotaxis 

    Soyer, Orkun S.; Goldstein, Richard A. (BioMed Central, 2011)
    Background: The ability to predict the function and structure of complex molecular mechanisms underlying cellular behaviour is one of the main aims of systems biology. To achieve it, we need to understand the evolutionary ...
  • Evolution of spiral and scroll waves of excitation in a mathematical model of ischaemic border zone 

    Biktashev, V. N.; Biktasheva, I. V.; Sarvazyan, N. A. (Public Library of Science, 2011)
    Abnormal electrical activity from the boundaries of ischemic cardiac tissue is recognized as one of the major causes in generation of ischemia-reperfusion arrhythmias. Here we present theoretical analysis of the waves of ...