Browsing Doctor of Philosophy (Ph.D.) by Title

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  • Representation of transformers in switching surge studies 
    Lucas, JR [Thesis-Abstract]
    A Transformer representation suitable for switching surge analysis is derived in terms of 'primitive' inductance and capacitance matrices. Connection matrices are used to account for all types of winding connections. ...
  • Some factors influencing the engineering properties of Hawkesbury Sandstone 
    De Silva, MDK [Thesis-Full-text]
    The Hawkesbury Sandstone is a major rock unit within the Permian-Triassic sediments which form the Sydney Basin, Australia. It covers an area of about 12,5000 square kilometers and has a thickness of about 300 meters. As ...
  • Studies in pressure .filtration on upward facing surfaces from a structural point of view 
    Herath Banda, SM [Thesis-Abstract]
    A direct technique to obtain information about the structure of a filter cake is described. Cakes formed from two different materials are consolidated and the porosity and pore size distribution in polished sections of ...
  • A systems approach to earthquake vulnerability assessment 
    Sanchez-Silva, M [Thesis-Abstract]
    The ability to take decisions about the expected response of existing projects (i.e. buildings, lifelines, cities) to an earthquake is difficult and complex. The behaviour of a few selected parameters of the main structural ...
  • Use of rice hull ash in water treatment 
    Mampitiyaarachchi, TR [Thesis-Abstract]
    Rice hulls, the largest milling byproduct of rice, constitute one fifth of the paddy by weight. The hulls which can be obtained at relatively low cost, are in abundant supply in most developing countries, particularly ...