Now showing items 330-349 of 1836

  • Decision support for optimal design of water distribution networks: A real options approach 

    Marques, J.; Cunha, M.C.; Savic, Dragan (Elsevier, 2014)
    There is a growing concern about how the technical, managerial and financial capacity of drinking water systems can be sustained in the long run with future uncertainties. A water supply system is critical for the well- ...
  • Decision Support System for Metabolism based Transition to Urban Water Systems of Tomorrow 

    Morley, Mark; Behzadian, Kourosh; Kapelan, Zoran; Ugarelli, R. (IWA Publishing, 2015-11-17)
    A decision support system (DSS) tool for the assessment of intervention strategies (Alternatives) in an urban water system (UWS) with an integral simulation model called ‘WaterMet2’ is presented. The DSS permits the user ...
  • Decision support system for metabolism-based transition to urban water systems of tomorrow 

    Morley, Mark S.; Behzadian, Kourosh; Kapelan, Zoran; Ugarelli, R. (IWA Publishing, 2014-09-21)
    A decision support system (DSS) tool for the assessment of intervention strategies in an urban water system (UWS) with an integral simulation model called “WaterMet2” is presented. Lists of intervention options and Performance ...
  • Decision Support System for the Long-Term City Metabolism Planning Problem 

    Morley, Mark S.; Vitorino, Diogo; Behzadian, Kourosh; Ugarelli, R.; Kapelan, Zoran; Coelho, ST; Do Céu Almeida, M (IWA Publishing, 2015)
    A Decision Support System (DSS) tool for the assessment of intervention strategies (Alternatives) in an Urban Water System (UWS) with an integral simulation model called “WaterMet2” is presented. The DSS permits the user ...
  • Declining summer snowfall in the Arctic: Causes, impacts and feedbacks 

    Screen, James A.; Simmonds, Ian (Springer Verlag, 2012)
    Recent changes in the Arctic hydrological cycle are explored using in situ observations and an improved atmospheric reanalysis data set, ERA-Interim. We document a pronounced decline in summer snowfall over the Arctic Ocean ...
  • The Deep Blue Color of HD 189733b: Albedo Measurements with Hubble Space Telescope/Space Telescope Imaging Spectrograph at Visible Wavelengths 

    Evans, T.M.; Pont, F.; Sing, David K.; Aigrain, Suzanne; Barstow, Joanna K.; Desert, J.-M.; Gibson, N.; Heng, Kevin; Knutson, H.; Lecavelier des Etangs, A. (IOP Publishing, 2013)
    We present a secondary eclipse observation for the hot Jupiter HD 189733b across the wavelength range 290-570 nm made using the Space Telescope Imaging Spectrograph on the Hubble Space Telescope. We measure geometric albedos ...
  • Delay effect of switch-on in a supertwisted nematic cell 

    Yang, Fuzi; Dong, Youmei; Ruan, Lizhen; Sambles, J. Roy (American Institute of Physics, 2004)
    By using a convergent beam system and the fully leaky guided mode technique the switch-on dynamics of an 180° supertwisted nematic have been studied. Using the Ericksen–Leslie theory and analyzing the guided mode data taken ...
  • Delayed static output feedback control of a network of double integrator agents 

    Deshpande, Paresh; Prathyush, P. Menon; Edwards, Christopher (Elsevier, 2013-11)
    This paper considers a network of vehicles moving in a two dimensional plane. The overall network, described by a collection of double integrator dynamics, is controlled by a novel distributed static output feedback ...
  • Dengue epidemic early warning system for Brazil 

    Lowe, Rachel; Rodo, X.; Barcellos, Christovam; Carvalho, Marilia Sa; Coelho, Caio A.S.; Bailey, Trevor C.; Jupp, Tim E.; Stephenson, David B.; Coelho, Giovanini E.; Graham, Richard J.; Ramalho, W.M. (UNISDR Scientific and Technical Advisory Group, 2015)
    The problem Brazil has reported more cases of dengue fever than anywhere else in the world this century1. Many cities have tropical and sub-tropical climate conditions that allow the dengue mosquito to thrive during warmer, ...
  • Dependence of anisotropy and damping on shape and aspect ratio in micron sized Ni 81Fe 19 elements 

    Barman, A.; Kruglyak, V.V.; Hicken, R.J.; Scott, J.; Kundrotaite, A.; Rahman, M. (American Institute of Physics, 2004)
    We have studied magnetic anisotropy and damping in Ni81Fe19 elements of different shape and aspect ratio by time-resolved scanning Kerr effect microscopy and micromagnetic simulations. Square elements show a fourfold ...
  • Dependence of spatial coherence of coherent suppression of magnetization precession upon aspect ratio in Ni 81Fe 19 microdots 

    Barman, A.; Kruglyak, V.V.; Hicken, R.J.; Scott, J.; Rahman, M. (American Institute of Physics, 2005)
    Coherent suppression of magnetization dynamics in circular microdots of Ni81Fe19 has been observed by time-resolved scanning Kerr effect microscopy. The applied pulsed field rose sharply, stimulating precession, and then ...
  • The dependence of stellar age distributions on giant molecular cloud environment 

    Dobbs, Clare; Pringle, J.E.; Naylor, Tim (Oxford University Press / Royal Astronomical Society, 2013)
    In this Letter, we analyse the distributions of stellar ages in giant molecular clouds (GMCs) in spiral arms, interarm spurs and at large galactic radii, where the spiral arms are relatively weak. We use the results of ...
  • Dependency of global mean precipitation on surface temperature 

    Lambert, F. Hugo; Webb, Mark J. (American Geophysical Union (AGU), 2008)
    We investigate the causes of temperature dependent changes in global precipitation in contemporary General Circulation Models (GCMs) subjected to a doubling of atmospheric CO2 concentration. By analyzing the energy budget ...
  • Design and analysis of an integral sliding mode fault-tolerant control scheme 

    Hamayun, M.T.; Edwards, Christopher; Alwi, Halim (Institute of Electrical and Electronics Engineers (IEEE), 2012-06-22)
    A novel scheme for fault-tolerant control is proposed in this paper, in which integral sliding mode ideas are incorporated with control allocation to cope with the total failure of certain actuators, under the assumption ...
  • Design and performance of district metering areas in water distribution systems 

    Savic, Dragan; Ferrari, Giada (Elsevier, 2014)
    In large urban areas, a number of different District Metered Areas (DMAs) layouts are possible and the comparison of possible solutions is an essential part of the decision process. Therefore, when designing DMAs in a water ...
  • Design of a graphical framework for simple prototyping of pluvial flooding cellular automata algorithms 

    Guidolin, Michele; Duncan, Andrew; Keedwell, Edward; Chen, Albert S.; Djordjevic, Slobodan; Savic, Dragan (Centre for Water Systems, University of Exeter, 2011)
    Cellular automata (CA) algorithms can be used for quickly describing models of complex systems using simple rules. CADDIES is a new EPSRC and industry-sponsored project that aims to use the computational speed of CA ...
  • The design of a responsive sustainable supply chain network under uncertainty 

    Dubey, Rameshwar; Gunasekaran, Angappa; Childe, Stephen J. (Springer-Verlag, 2015-03-27)
    There is growing interest among researchers in the concept of sustainability. Large commercial corporations have also shown responsibility for preserving planet and people while maintaining profit. Our present paper is ...
  • The Design of Re-writeable Ultra-High Density Scanning-Probe Phase-Change Memories 

    Wright, C. David; Wang, Lei; Shah, P.; Aziz, Mustafa M.; Varesi, E.; Bez, R.; Moroni, M.; Cazzaniga, F. (Institute of Electrical and Electronics Engineers (IEEE), 2010)
    A systematic design of practicable media suitable for rewritable, ultrahigh density (>;1Tbit/sq.in.), high data rate (>;1Mbit/s/tip) scanning-probe phase-change memories is presented. The basic design requirements were met ...
  • Design of tensegrity structures using parametric analysis and stochastic search. 

    Rhode-Barbarigos, Landolf; Jain, Himanshu; Kripakaran, Prakash; Smith, Ian F.C. (Springer Verlag, 2010)
    Tensegrity structures are lightweight structures composed of cables in tension and struts in compression. Since tensegrity systems exhibit geometrically nonlinear behavior, finding optimal structural designs is difficult. ...
  • Design robustness of local water-recycling schemes 

    Rozos, Evangelos; Makropoulos, C.; Butler, David (American Society of Civil Engineers, 2010)
    The implementation of local water recycling and reuse practices is considered as a possible approach to managing issues of water scarcity. The sustainable design and implementation of a water recycle/reuse scheme has to ...