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Browsing ERU - 1999 by Title

Browsing ERU - 1999 by Title

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  • Kumarage, AS [Conference-Abstract]
    The bus industry in Sri Lanka has undergone many changes throughout its existence. Though all such changes were introduced in order to improve bus services, most attempts have been either short lived or counter-productive. The ...
  • Jayasinghe, JAKS; Arachchi, HK [Conference-Abstract]
    Development of the hardware, firmware and control and monitoring software to interface the UNIROAD Traffic Signal Controller (TSC) to Advanced Traffic Control System (ATCS) is described. This system is capable of controlling ...
  • Jayasinghe, JAKS; Nishantha, GGD [Conference-Abstract]
    The concept of vision information has become a key feature in moden vehicular traffic control and Intelligent Vehicle Highway Systems (IVHS) [1]. Vehicle detection by video cameras is one of the most promising new technologies ...
  • Perera, DFU; Jayasinghe, MTR [Conference-Abstract]
    It is the duty of the professionals involved in the building industry to ensure that the buildings are safe and healthy. However, in many instances such as blasts and earthquakes, the building industry has failed to ensure ...
  • Weerasinghe, A; Dias, G [Conference-Abstract]
    Although the national languages of Sri Lanka are Sinhala and Tamil, due to the fact that most of the computer systems operate in English, almost all the databases in Sri Lanka have been implemented in English. This paper ...
  • Jayasinghe, JAKS [Conference-Abstract]
    Low Noise Pre-amplifiers (LNP) increase the quality of weak signals by amplifying them without introducing excessive noise generated inside the amplifier. The advantage of using LNP for weak TV signal reception is presented ...
  • Dias, D; Gajaweera, RN [Conference-Abstract]
    The paper describes the development of a speech trainer based on digital signal processing (DSP) techniques, for hearing impaired children. The DSP techniques investigated in the implementation of this software-based speech ...
  • Wijeratne, MD; Jayasinghe, MTR [Conference-Abstract]
    Unreinforced loadbearing brickwork is a cost effective alternative to reinforced concrete frame structures in low rise residential building such as two to three storey houses, hostel buildings and hotels. For its widespread ...
  • Ranaweera, A; De Silva, WNH; Eranjeewa, AAT; Epa, DJ; Kandeepan, K [Conference-Full-text]
    The electronic ampere-hour meter does not require any voltage supply and its operation is based on the magnetic coupling to electrical conductors feeding consumer's load. A capacitor inside the meter is charged at a rate ...
  • Hettiarachchi, SSL; Mirihagalla, PD [Conference-Full-text]
    The paper presents the results of large scale physical model investigations on the hydraulic performance of rock armoured rubble mound breakwaters. The energy dissipation characteristics of conventional trapezoidal layered ...
  • Fernando, WJLS; Wijayatunga, PDC; Ranasinghe, S [Conference-Full-text]
    Efficient utilisation of energy is considered to be one of the main tools of controlling the ever increasing demand for energy, especially in developing countries where there is a large potential for improvement. In recent ...
  • Hewawasam, GDK; Attalage, RA [Conference-Full-text]
    The Utilizability concept has been adopted as a design method for flat plate solar thermal collector sizing. Hourly & Daily utilizability curves on a monthly time scale have been generated for the city of Colombo using ...
  • Wijayatunga, PDC; Attalage, RA; Sugathapala, AGT [Conference-Full-text]
    This paper presents the results of financial and technical feasibility of vapour absorption based air- conditioning systems (VAAC) in an industrial environment in comparison to vapour compression based systems (VCAC). The ...
  • Nanayakkara, LDJF; Ganesapiragas, S [Conference-Full-text]
    There are many benefits to be reaped by organizations of small and medium size by encouraging and exploiting the motivations non-IT engineering professionals possess for programming applications for day- to-day use. Potential ...
  • Jayasinghe, JAKS; Ranaweera, RAKP [Conference-Full-text]
    The design and implementation of a low cost solid-state lamp driver and failure detector (LD/FD) for incandescent lamps is described. The design is directly targeted for the signal lamp heads in highway traffic signal ...
  • Jayasinghe, JAKS [Conference-Full-text]
    Construction of new highways or expansion of existing highways to meet the ever- increasing highway traffic is a very expensive and time-consuming task. Management of existing highways effectively is considered as a high ...
  • Jayasinghe, JAKS; Ranaweera, RAKP [Conference-Full-text]
    The design and implementation of a high performance, automatic battery charger is described. The main target application of the design is for on-line battery backup systems requiring high reliability such as highway traffic ...
  • Watugala, GK; Kumara, WMP [Conference-Full-text]
    Optical Character Recognition (OCR) is now a reality for documents printed in English. In the present study, the groundwork for the recognition of Sinhala characters is done. Matrix Matching and Feature Analysis are the ...
  • Ranaweera, A; Wickramaratne, LS [Conference-Full-text]
    In this paper the principle of operation, implementation and performance of an integrated circuit based electronic energy meter are described. Comparison is made of the performance of the electronic energy meter with that ...
  • Thilakasiri, HS; Peiris, TA; Tennakoon, BL [Conference-Abstract]
    Excessive settlement of engineering structures and subsequent correction procedure have become a major concern for both the public and the engineering community. The severity of the above problem has increased due to the ...
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