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

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  • Molecular and ultrafine structure of cotton fibres 
    Fernando, LD [Thesis-Abstract]
    Differences among native cottons which have been recognized the textile industry for many years, and have formed the basis for Cotton classification in commerce and ultimate utilization, include Factors such as fiber length, ...
  • Optical properties of likely constituents of interstellar dust 
    Dayawansa, IJ [Thesis-Abstract]
    Optical properties of polyoxymethelene (POM) at room temperature have been measured from the near ultra-violet to infra-red as an initial stage of a line between interstellar dust and organic matter, and we report our ...
  • Optimising earthmoving by linear programming and computer simulation 
    Jayawardane, AKW [Thesis-Abstract]
    The accuracy of planning and estimating of earthmoving operations in any highway construction is important for both successful tendering and high profit margins. Mass-haul diagrams and experienced engineering judgment ...
  • Porting a distributed operating system to a shared memory parallel computer 
    Atukorala, GS [Thesis-Abstract]
    This thesis describes the porting of a distributed operating system, Helios, to a bus based, shared memory, parallel processing computer. Helios design was originally based on a distributed memory, transputer network, ...
  • 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 ...