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Browsing IRSPAS 2017 by Title

Browsing IRSPAS 2017 by Title

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  • Monitoring the accumulation of polycyclic aromatic hydrocarbons in the water bodies around Kelanitissa and Kerawalapitiya power plants in Sri Lanka. 
    Chandrasiri, H. M. H. B.; Doole, F. T.; Subramanium, S. S. (International Research Symposium on Pure and Applied Sciences, 2017 Faculty of Science, University of Kelaniya, Sri Lanka., 2017)
    Polycyclic aromatic hydrocarbons (PAHs) are a group of environmental contaminants which are formed due to natural processes such as forest fires and anthropogenic activities including incomplete combustion of organic matter ...
  • A multi-pronged approach to assess informational efficiency of the Colombo Stock Exchange. 
    Upeksha, P. G. S.; Peter, S. (International Research Symposium on Pure and Applied Sciences, 2017 Faculty of Science, University of Kelaniya, Sri Lanka., 2017)
    With the dynamic nature of the capital market environment, understanding informational efficiency of financial markets has become crucial. Efficient market is one in which prices fully reflect the available information. ...
  • A new cosmological model including inflation, deceleration, acceleration and deceleration again. 
    Perera, P. V. N. M. C.; Katugampala, K. D. W. J. (International Research Symposium on Pure and Applied Sciences, 2017 Faculty of Science, University of Kelaniya, Sri Lanka., 2017)
    Since Perlmutter and Riess (1997; 1998) observed that the Universe expands with an acceleration, many models involving dark energy have been proposed to explain this phenomenon. A family of cosmological models with both ...
  • New records of ant taxa (Hymenoptera: Formicidae) in four subfamilies from Sri Lanka. 
    Dias, R.K.S.; Wackhoo, A.A.; Akbar, S.A. (International Research Symposium on Pure and Applied Sciences, 2017 Faculty of Science, University of Kelaniya, Sri Lanka., 2017)
    Ants belonging to 11 subfamilies have been recorded from Sri Lanka. In subfamily Amblyoponinae two genera, Stigmatomma and Myopopone, were previously known from the country. We report here new records of two genera and ...
  • Nutraceutical properties of Garcinia zeylanica fruit rinds and leaves. 
    Lansakara, L.M.O.D.K.; Jayawardena, B.M. (International Research Symposium on Pure and Applied Sciences, 2017 Faculty of Science, University of Kelaniya, Sri Lanka., 2017)
    Garcinia L. (Family Clusiaciae) is a large genus distributed mainly in tropical evergreen areas of South-east Asia and Africa. It consists of about 180 species, of which ten species are observed in Sri Lanka including five ...
  • Nutrient leaching of selected invasive plant materials. 
    Ranasinghe, E.H.A.A.; Jayasekera, L.R.; Kannangara, S.D.P.; Ratnayake, R.M.C.S. (International Research Symposium on Pure and Applied Sciences, 2017 Faculty of Science, University of Kelaniya, Sri Lanka., 2017)
    Thithonia diversifolia, Sphagneticola trilobata, Mikania scandens, Lantana camara, Chromolaena odorata, Panicum maximum and Mimosa pigra are fast growing invasive plants in Sri Lanka. In this study, the nutrient release ...
  • Nutritional status and lifestyle practices of undergraduates of Faculty of Science, University of Kelaniya. 
    Fernando, B. T. J.; Fernando, G. W. A. A. N.; Fernando, K. R. K.; Fernando, M. R. A. S.; Fernando, W. G.; Kasturiratne, A. (International Research Symposium on Pure and Applied Sciences, 2017 Faculty of Science, University of Kelaniya, Sri Lanka., 2017)
    The current nutrition and lifestyle of University undergraduates will determine the future health and productivity of the nation. This study was done to describe the nutritional status, dietary practices and the physical ...
  • Occurrence of dengue vectors in school premises in Gampaha District, Sri Lanka. 
    Radhika, N.M.L.; Gunathilaka, P.A.D.H.N.; Kasturiratne, A.; Abeyewickreme, W. (International Research Symposium on Pure and Applied Sciences, 2017 Faculty of Science, University of Kelaniya, Sri Lanka., 2017)
    Aedes aegypti and Aedes albopictus are the vectors responsible for the transmission of dengue virus in Sri Lanka. During the past decade, Gampaha district has been ranked the second on the number of reported dengue cases. ...
  • Offline analysis of web logs to identify offensive web crawlers. 
    Algiriyage, N. (International Research Symposium on Pure and Applied Sciences, 2017 Faculty of Science, University of Kelaniya, Sri Lanka., 2017)
    With the continuous growth and rapid advancement of web based services, the traffic generated by web servers have drastically increased. Analyzing such data, which is normally known as click stream data, could reveal a lot ...
  • On sum formulas for Mordell - Tornheim zeta values. 
    Pallewatta, M.; Kaneko, M. (International Research Symposium on Pure and Applied Sciences, 2017 Faculty of Science, University of Kelaniya, Sri Lanka., 2017)
    The multiple zeta values are real numbers which are studied by many people in different fields. The multiple zeta values with depth 1 are the Riemann zeta values. The sum formulas are considered as one of the most famous ...
  • An optimization model to allocate most suitable team members for software development projects. 
    Dharmasena, T.; Wijayanayake, A. (International Research Symposium on Pure and Applied Sciences, 2017 Faculty of Science, University of Kelaniya, Sri Lanka., 2017)
    Human resource is the most important resource that creates value for the software development projects with the correct identification of knowledge and skills that need to achieve the specified scope of any given project. ...
  • Optimization of growth parameters of photoactive Cu2ZnSnS4. 
    Fernando, W. T. R. S.; Jayathilaka, K. M. D. C.; Wijesundera, R. P.; Siripala, W. (International Research Symposium on Pure and Applied Sciences, 2017 Faculty of Science, University of Kelaniya, Sri Lanka., 2017)
    Cu2ZnSnS4 (CZTS) is a promising candidate for application in low-cost and environmentally friendly thin film solar cells due to its optoelectronics properties. It is a perfect absorber material for photovoltaic applications ...
  • Optimizing the allocation of employees for training programmes. 
    Wickramarachchi, B.; Wijayanayake, A. (International Research Symposium on Pure and Applied Sciences, 2017 Faculty of Science, University of Kelaniya, Sri Lanka., 2017)
    The Human Resource (HR) department of any organization plays a vital role in decision making. All HR managers commit for dedicated corporate trainings to ensure that their employees have a better understanding of their ...
  • Phase programmed nanofabrication: Effect of organophosphite reactivity on the evolution of nickel phosphide nanocrystals. 
    Andaraarachchi, H. P.; Vela, J. (International Research Symposium on Pure and Applied Sciences, 2017 Faculty of Science, University of Kelaniya, Sri Lanka., 2017)
    A critical aspect of the synthesis and application of nanostructured materials is to precisely control their phase, composition, and consequently, properties. Traditional methods call for fine tuning and optimization of ...
  • Photoelectrolysis of water using electrodeposited Cu2O electrodes. 
    Silva, A. G. T. D.; Jayathilaka, K. M. D. C.; Wijesundera, R. P.; Siripala, W. (International Research Symposium on Pure and Applied Sciences, 2017 Faculty of Science, University of Kelaniya, Sri Lanka., 2017)
    At present, fossil fuels are the main energy contributor of the world’s energy needs but gradually depletion of fossil fuels is heading towards an energy crisis. Therefore it is very important for us to find out a renewable ...
  • Plant pathology in plant biosecurity. 
    Herath, A. (International Research Symposium on Pure and Applied Sciences, 2017 Faculty of Science, University of Kelaniya, Sri Lanka., 2017)
    Detecting and preventing entry of exotic pests at the border is critical for protecting incursions of new plant diseases. Countries which are geographically isolated from any significant landmass (Ex: New Zealand) have ...
  • Polarizability of a metallic nano-cylinder: Local random-phase approximation (LRPA). 
    Asela, A.U.; Hewageegana, P.S. (International Research Symposium on Pure and Applied Sciences, 2017 Faculty of Science, University of Kelaniya, Sri Lanka., 2017)
    We develop a method to calculate the polarizability of a nano-cylinder by taking temporal and spatial dispersion in to account where dispersion due to the Landau damping. To describe these phenomena, we developed analytical ...
  • Prediction of daily gold prices in Sri Lanka: A comparison of time series and artificial neural network models. 
    Shashikala, M. A. G.; Chandrasekara, N.V.; Jayasundara, D. D. M. (International Research Symposium on Pure and Applied Sciences, 2017 Faculty of Science, University of Kelaniya, Sri Lanka., 2017)
    Gold is an ancient and one of the most precious and popular commodities in the world. Investors at all levels are attracted to gold in all times as gold is a solid and tangible long term store of value. Gold can be used ...
  • Production of bio-ethanol using pretreated lignocellulosic materials (rice husk, water hyacinth). 
    Arasaretnam, S.; ayasundara, J. M. P. W. (International Research Symposium on Pure and Applied Sciences, 2017 Faculty of Science, University of Kelaniya, Sri Lanka., 2017)
    Production from food sources such as corn, sugarcane etc. is the most predominant way of producing ethanol. This has led to a shortage in food, imbalance in food chain, increased food price and indirect land use. This study ...
  • Production of extracellular amylase under solid state fermentation using ground nut shell as the substrate and its application in textile and baking industry. 
    Apeksha, I.A.U.; Weerasooriya, M.K.B. (International Research Symposium on Pure and Applied Sciences, 2017 Faculty of Science, University of Kelaniya, Sri Lanka., 2017)
    Amylases find potential applications in a number of industrial processes such as food, detergent, textiles, brewing and paper industries. Though Amylase can be obtained from several sources, use of microorganisms meet the ...

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