Now showing items 1-20 of 49

  • Advances in water mains network modelling for improved operations 

    Sophocleous, S; Savić, Dragan; Kapelan, Zoran; Shen, Y; Sage, P (Elsevier, 2015-01-01)
    © 2015 The Authors. Published by Elsevier Ltd. The traditional approach to water mains network model calibration is too coarse. System and data anomalies impact on the simulated pressures in the models. These include unknown ...
  • Application of cellular automata approach for fast flood simulation 

    Ghimire, Bidur; Chen, Albert S.; Djordjevic, Slobodan; Savic, Dragan (Centre for Water Systems, University of Exeter, 2011)
    The increasing pluvial flooding in many urban areas of the world has caused tremendous damage to societies and has drawn the attention of researchers to the development of a fast flood inundation model. Most available models ...
  • Approximate pole-placement controller using inverse plant dynamics for floor vibration control 

    Nyawako, Donald S.; Reynolds, Paul; Hudson, Malcolm J. (Society of Photo-optical Instrumentation Engineers (SPIE), 2013-06-04)
    Past research and field trials have demonstrated the viability of active vibration control (AVC) technologies for the mitigation of human induced vibrations in problematic floors. They make use of smaller units than their ...
  • Highway bridge live loading assessment and load carrying estimation using a health monitoring system 

    Moyo, P; Brownjohn, James; Omenzetter, P (Institution of Civil Engineers, 2015)
    The Land Transport Authority of Singapore has a continuing program of highway bridge upgrading, to refurbish and strengthen bridges to allow for increasing vehicle traffic and increasing axle loads. One subject of this ...
  • CADDIES: a new framework for rapid development of parallel cellular automata algorithms for flood simulation 

    Guidolin, Michele; Duncan, Andrew; Ghimire, B; Gibson, M; Keedwell, Edward; Chen, Albert S.; Djordjevic, Slobodan; Savic, Dragan (2012)
    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 ...
  • Comparison of info-gap and robust optimisation methods for integrated water resource management under severe uncertainty 

    Roach, Tom; Kapelan, Zoran; Ledbetter, Ralph (Elsevier, 2015-01-01)
    This paper evaluates two established decision making methods and analyses their performance and suitability within an Integrated Water Resource Management (IWRM) problem. The methods under comparison are Info-Gap decision ...
  • A Computational Tool for the Pro-Active Management of Offshore Farms 

    Rinaldi, G; Thies, P; Johanning, L; Walker, R (ASRANET, 2016-09-12)
    Operation and Maintenance (O&M) of offshore farms have been highlighted as one of the major contributors to the final cost of energy. Therefore, lower the costs related to such aspect is vital in order to speed up their ...
  • Computing and control for the water industry (CCWI2015) 

    Ulanicki, B; Kapelan, Zoran; Janus, T; Ulanicki (Elsevier, 2015-01-01)
    With rapid population growth, water withdrawals have tripled over the last 50 years and are predicted to increase by 50% by 2025 and may lead to an estimated 40% supply shortage. Water resources protection and improvements ...
  • Data-driven model of random lateral pedestrian excitation 

    Racic, V; Brownjohn, JMW; Pavic, A (Taylor & Francis (CRC Press), 2013-12-09)
    Randomness and narrow band nature are the two essential features of lateral walking loading not addressed adequately in the existing design guidelines for footbridges. One of the reasons for this is the lack of a comprehensive ...
  • 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 ...
  • Discussion of human resonant frequency 

    Brownjohn, James; Zheng, Xiahua (International Society for Optical Engineering., 2001)
    Human bodies are often exposed to vertical vibrations when they are in the workplace or on vehicles. Prolonged exposure may cause undue stress and discomfort in the human body especially at its resonant frequency. By testing ...
  • Dynamic loading factors of individual jogging forces 

    Racic, Vitomir; Brownjohn, James; Pavic, Aleksandar (ECCOMAS proceedings, 2013)
    With increasingly popular marathon events in urban environments, such as in London and New York City, structural designers are faced with a great deal of uncertainty when assessing dynamic performance of bridges occupied ...
  • Dynamic performance of high frequency floors 

    Brownjohn, James (Society for Experimental Mechanics, 2006)
    Hospitals and micro-electronics fabrication facilities require ultra-low vibration environments, and to mitigate the effects of the governing vibration source, footfalls, the floors are typically designed to have high ...
  • The dynamic stiffening effects of non-structural partitions in building floors 

    Middleton, C.J.; Pavic, Aleksandar (Springer, 2013-09-03)
    It is commonly known that full-height non-structural partitions of a fitted out floor structure affect its dynamic properties, with increase in floor mass and modal damping being commonly quoted in floor design guidelines. ...
  • Effect of sensory stimuli on dynamic loading induced by people bouncing 

    Racic, V; Brownjohn, JMW; Wang, S; Elliot, MT; Wing, A (Springer, 2013-05-27)
    Prediction of dynamic loads induced by groups and crowds of people bouncing is a hot topic among designers of grandstands and floors in entertaining venues. Using motion capture technology transferred and adapted from ...
  • Estimation of damping in suspension bridges 

    Brownjohn, James (Institution of Civil Engineers: Structures and Buildings, 1994-11)
    Since there is little analytical foundation for assigning damping values in dynamic response analyses of long-span suspension bridges, the process usually reduces to using values derived from published physical test data. ...
  • Experimental verification of increased optical contrast in nanometer phase change films 

    Hosseini, P; Bhaskaran, H; Wright, CD (Institute of Electrical and Electronics Engineers (IEEE), 2015-07-28)
    The optoelectronic properties of phase change materials (PCMs) have been recently demonstrated for novel applications such as solid state nanodisplays. The thickness of the active PCM layer in particular is of critical ...
  • Findings with AVC design for mitigation of human induced vibrations in office floors 

    Nyawako, Donald S.; Reynolds, Paul; Hudson, Malcolm (Springer, 2013-09-03)
    In recent years, there have been extensive active vibration control (AVC) studies for the mitigation of human induced vibrations in a series of office floors, in which such vibrations are deemed to be 'problematic' and ...
  • Finite-Element Updating of the University of Exeter Forum Walkway 

    Karakonstantis, V; Reynolds, Paul (NAFEMS, 2014)
    This paper presents the finite element (FE) updating of a walkway, part of the University of Exeter’s Forum building. The walkway is a relatively slender structure with natural frequencies in the range that can be excited ...
  • Flood impact assessment under climate change scenarios in central Taipei area, Taiwan 

    Hsu, MH; Chen, CH; Chang, CH; Liu, WC; Chang, TJ; Lin, YC; Chen, AS; Hammond, MJ; Djordjević, S; Butler, D (Centre for Water Systems, University of Exeter, 2013-09)
    Providing effective information regarding flood control for responding climate change is essential to future flood risk management for cities. This study simulated and assessed the impacts of flooding for future climate ...