Browsing Conference Proceedings by Year "1997"

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  • A 12v dc/230v ac inverter/charger with advanced Protection features 
    Ranaweera, A; Seneviratne, BKCC; Kalyanapala, M [Conference-Full-text]
    The inverter can be used as a source of ac power in the absence of grid power. The battery can also be charged by alternative sources of energy if grid power is not available at all. The unit described works as a batter}' ...
  • Analysis of policy options for controlling pollution in the Kelani river 
    Bhuvendralingam, S; DeCosse, P; Liyanamana, P; Ranawana, S [Conference-Full-text]
    Such as many polluted waterbodies in the Colombo district, the Kelani River has also not escaped the impacts of pollution due to a growing population and urbanisation. A recent study on water pollution in the Kelani River ...
  • Applications of high strength concrete in highrise buildings 
    Jayasinghe, MTR; Jayanandana, ADC; Alwis, KGNC [Conference-Full-text]
    High strength concrete can be used in high-rise buildings to minimise the size of columns, especially in the lower floors. High strength concrete has the added advantage of a higher elastic modulus that can reduce the ...
  • Delineation and evaluation of ground water potential Zones using remote sensing and gis 
    Senarath, UG [Conference-Full-text]
    In spite of extensive research and technological advancement the study of ground water has remained more of a speculative and intuitive science as there is no method to facilitate direct observation of water below the ...
  • Design and construction of horizontal axis wind mill For water pumping 
    Balasuriya, PD; Nimal, RP; Pathirana, CR; Sugathapala, AGT [Conference-Full-text]
    This paper presents design and construction details of a six-bladed horizontal axis wind mill suitable for small scale lift irrigation. The main outcome of the study is the improvement of the rotor performance by ...
  • Design of high strength concrete mixes 
    Jayanandana, ADC; Jayasinghe, MTR; Hewagama, CI [Conference-Full-text]
    High strength concrete offers many advantages in the construction of high-rise buildings and bridges. In many countries, concrete strengths higher than 40 MPa are widely produced on commercial basis using normal aggregates ...
  • Development of a computer simulation model for Tension free or minimum tension machine fabric laying 
    Senanayake, M [Conference-Full-text]
    Tension free or uniform minimum tension fabric laying is essential in order to overcome the problems of distortion of garment panels. Some garment factories use machine laying while others lay manually Even with tension ...
  • Expert system for the evaluation of industrial estate Sites 
    Kodagoda, GN [Conference-Full-text]
    The proper selection of suitable Industrial Estate Sites is of great importance, in the development of Industrial Estate Sites. A systematic methodology called “Systematic Procedure in the Selection of Industrial Estate ...
  • Free space optical links 
    Punchihewa, AG [Conference-Full-text]
    This paper describes a future scenario where optical links are used for interlinking data super highways. Conventionally, optical carriers are used in guided form where it travels within an optical fibre. However, in ...
  • Hazardous waste management in Sri Lanka 
    de Alwis, AAP [Conference-Full-text]
    The country is currently looking towards development through industrialization. The industries will inevitably generate hazardous wastes which will need special handling and disposal methods. This important aspect has ...
  • Hydraulic performance of porous vertical coastal Structures 
    Hettiarachchi, SSL [Conference-Full-text]
    Porous vertical structures have been used for coast protection and for harbour structures. In the case of harbours these structures have been used as the principal breakwaters and as internal structures. The ability to ...
  • The importance of humphreys spiral in heavy mineral Separation 
    Fernando, WLW [Conference-Full-text]
    The Humphreys Spiral Concentrator which was developed in 1943 is now being used extensively for the concentration and the recovery of heavy minerals. In Sri Lanka, this device is very effectively used by the mineral sand ...
  • Integration of cost control and estimation using Spreadsheets and databases 
    Kodikara, GW [Conference-Full-text]
    Cost control is very important for any industry, since it is the activity which monitors the actual cost against the budgeted costs and initiates corrective actions if the costs are higher than expected. The estimating ...
  • Management of unaccounted -for-water in the greater colombo water supply Distribution system. 
    Ratnayake, N; Chandrasekera, HJVC [Conference-Full-text]
    Water losses in the water distribution system is a common phenomenon experienced by water supply facilities all over the world. Unaccounted-for-Water (UFW) is the difference between the quantity of water produced and the ...
  • Mathematical modelling and extrapolation of Streamflow for hydro-power development 
    Wijesekera, NTS [Conference-Full-text]
    Hydro-power development is important for Sri Lanka not simply because it is a means of energy generation but also because it utilizes a resource which does not create environmental hazards in the process of energy ...
  • Optimisation of energy consumption and productivity Of a garment factory 
    Wickramasinghe, GLD [Conference-Full-text]
    In most Garment factories the energy cost represents a considerable portion of the total production cost. The aim of this project is to build a computer model for a garment factory so as to analyse the various conditions ...
  • Passive solar techniques for Sri Lanka 
    Jayasinghe, MTR; Sujeewa, LC; Fernando, KKJS; Wijayapriya, RA [Conference-Full-text]
    Passive solar architecture can be described as the utilisation of the energy of the sun together with the characteristics of the local climate to directly maintain thermally comfortable conditions in buildings while ...
  • Preparation of size measurement chart for sri lankan Male and development of a computer simulation model For the body 
    Wanniarachcbi, T [Conference-Full-text]
    Presently, people who live in South Asian countries experience difficulties in finding correctly sized garments in the market place. Garment manufacturers produce them according to specifications prepared to fit the ...
  • Proceedings of Symposium on Research for Industry 1997 - Pre Text 
    Hettiarachchci, P [Conference-Full-text]
  • A secure database accessible through the worldwide Web 
    de Silva, GC [Conference-Full-text]
    Database access through the World Wide Web can combine the advantages in using each of them It permits people to work away from their offices, and to carry out money transfers over the Internet There have been, however, ...