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Browsing IRSPAS 2017 by Issue Date

Browsing IRSPAS 2017 by Issue Date

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  • Isolation, purification and structure elucidation of antimicrobial and bio-active compounds of soil fungi. 
    Wijesekara, W. A. M. A.; Wijesinghe, K.D.; Kumara, K. G. N. P.; Manage, P. M. (International Research Symposium on Pure and Applied Sciences, 2017 Faculty of Science, University of Kelaniya, Sri Lanka., 2017)
    Soil fungi are considered as a rich source of bioactive compounds and antibiotics. They are able to produce a great variety of secondary metabolites characterized by a broad spectrum of properties of bioactive compounds ...
  • Screening local fungal isolates for their cellulases production: the applicability in producing bioethanol from cellulose. 
    Jayasekara, S. K.; Abayasekara, C. L.; Ratnayake, R. R. (International Research Symposium on Pure and Applied Sciences, 2017 Faculty of Science, University of Kelaniya, Sri Lanka., 2017)
    Being a highly abundant, inexpensive polysaccharide present in the environment, cellulose could be used as a substrate for good bioethanol production. However, the conventional physical and chemical methods of breaking ...
  • 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 ...
  • Antioxident activitiy and α-amylase activity of pressurized water extract of Cinnamomum zeylanicum (L.) bark oil. 
    Wariyapperuma, W. A. N. M.; Jayawardena, B. M.; Kannangara, S. D. P.; Wijayasinghe, Y. S.; Skandaraja, S. (International Research Symposium on Pure and Applied Sciences, 2017 Faculty of Science, University of Kelaniya, Sri Lanka., 2017)
    Cinnamon (Cinnamomum zeylanicum) is an evergreen plant widely grown across Asia as a spice and to extract its essential oil. The composition of essential oil, obtained from different parts of the plant differ in chemical ...
  • Rumen microbiome: Exploring the adaptive roles of viruses and bacteria in the rumen. 
    Anderson, C. L.; Fernando, S.C. (International Research Symposium on Pure and Applied Sciences, 2017 Faculty of Science, University of Kelaniya, Sri Lanka., 2017)
    Complex and diverse microbial communities mediate the cycling of nutrients within ruminants. The structure of this complex microbial community is shaped by the highly variable physical, chemical and predatory environment. ...
  • 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 ...
  • Method validation of surface sampling. 
    Chamikara, H. J. M. P.; Abeygunawardena, G. A. S. I. (International Research Symposium on Pure and Applied Sciences, 2017 Faculty of Science, University of Kelaniya, Sri Lanka., 2017)
    Various types of solid surfaces are used by the manufacturers to carry out packaging of their healthcare products. In order to control microbial hazards, these surfaces are subjected to de-contamination processes to avoid ...
  • RSM approach to study the influence of hard water on natural dyeing of cotton fabric by Punica granatum peels. 
    Khalid, I.; Ali, S.; Hussain, M.T.; Atif, M.; Habiba, U.; Iqbal, M.A. (International Research Symposium on Pure and Applied Sciences, 2017 Faculty of Science, University of Kelaniya, Sri Lanka., 2017)
    Hardness in the ground water poses adverse effects on the dyeing quality of textile products. In wake of a growing trend to adopt natural dyeing at commercial scale, a study was conducted to evaluate influence of water ...
  • Evaluation of solution parameters for CdCl2 solutions to be used in post-deposition treatments of CdTe thin films in CdS/CdTe solar cells. 
    Atapattu, H. Y. R.; Silva, D. S. M. D.; Pathiratne, K. A. S. (International Research Symposium on Pure and Applied Sciences, 2017 Faculty of Science, University of Kelaniya, Sri Lanka., 2017)
    Owing to its high absorption coefficient and the near ideal band gap, CdTe has become one of the topmost solar energy materials available for conversion of solar energy into electricity. It exhibits excellent power conversion ...
  • Development and application of rice-straw biochar for removal of selected heavy metals (Pb, Cd and Cr) in contaminated paddy soil. 
    Irosha, K. P. C.; De Silva, D. S. M. (International Research Symposium on Pure and Applied Sciences, 2017 Faculty of Science, University of Kelaniya, Sri Lanka., 2017)
    Biochar which is derived from carbon rich biomass such as wood, manure and leaves, is increasingly recognized as multifunctional material for various applications like contaminant management in soil and water, soil amendment ...
  • Economic determinants of suicides in Sri Lanka over the period 1975 – 2015. 
    Devindi, R. P. D. C. S.; Kulatunga, D. D. S. (International Research Symposium on Pure and Applied Sciences, 2017 Faculty of Science, University of Kelaniya, Sri Lanka., 2017)
    Suicide is a major public health problem in the world. According to the World Health Organization, every 40 seconds, a person commits suicide somewhere in the world. In Sri Lanka a steady increase of suicides has been ...
  • 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 ...
  • Approximate analytical solution to the time-fractional nonlinear Schrodinger equation through the Sumudu decomposition method. 
    Mathanaranjan, T.; Himalini, K. (International Research Symposium on Pure and Applied Sciences, 2017 Faculty of Science, University of Kelaniya, Sri Lanka., 2017)
    The time-fractional nonlinear Schrodinger equation has the following form:.... where dV is the trapping potential and d is a real constant. The physical model of above equation and its generalized forms arise in various ...
  • Thin shell model for Majumdar Papapetrou spacetimes. 
    Dilini, N. I.; Wimaladharma, N. A. S. N. (International Research Symposium on Pure and Applied Sciences, 2017 Faculty of Science, University of Kelaniya, Sri Lanka., 2017)
    Einstein – Maxwell field equations are nonlinear partial differential equations which are difficult to solve. Therefore different assumptions are needed to solve them. Also it is very hard to find properties of the matter ...
  • A mathematical model for a lubricant approximation of the wet thin tear film. 
    Ranathunga, G. P.; Karunathilake, N. G. A. (International Research Symposium on Pure and Applied Sciences, 2017 Faculty of Science, University of Kelaniya, Sri Lanka., 2017)
    The classical description of the tear film resides on the anterior surface of the eye between the upper and lower lids is a wet thin film. Various fluid dynamic model have been developed for the evolution of the surfactant ...
  • Modeling Non-Isothermal wire-coating from a bath using Giesekus fluid. 
    Karunathilake, N. G. A.; Panda, S.; Mallawaarachchi, D. K.; Wijesiri, G. S.; Hansameenu, W. T. P. (International Research Symposium on Pure and Applied Sciences, 2017 Faculty of Science, University of Kelaniya, Sri Lanka., 2017)
    In this paper we extend the recent analysis of Giesekus isothermal viscoelastic fluid model by inclusion of temperature in the uni-axial flow which occurs in the wire-coating process. The wire-coating flow of incompressible ...
  • A simple and rapid UV-Visible spectrophotometric method for determination of Mercury (II) using TMPyP in aqueous solutions. 
    Hettiarachchi, A. H .P.; Rajapakse, C. S. K. (International Research Symposium on Pure and Applied Sciences, 2017 Faculty of Science, University of Kelaniya, Sri Lanka., 2017)
    Even though Mercury and its compounds are known to be extremely toxic they are widely distributed in the environment. The main sources of mercury pollution are coal burning power plants, paper, plastic, electrical, paint, ...
  • Model study on the adsorptive removal of nickel and cobalt ions from waste water using clay soil as a natural adsorbent. 
    Kumarihami, C. A. U. K.; Kulathunga, S.; Subramanium, S. S. (International Research Symposium on Pure and Applied Sciences, 2017 Faculty of Science, University of Kelaniya, Sri Lanka., 2017)
    Requirement for developing strategies for employing cost effective and efficient adsorbents for the removal of heavy metals from waste streams has been steadily increasing over the past years. Naturally occurring clay is ...
  • A study on sorption of Cd(II) onto chitosan derivatives. 
    Samaranayaka, K. A. S.; Rajapakse, C. S. K. (International Research Symposium on Pure and Applied Sciences, 2017 Faculty of Science, University of Kelaniya, Sri Lanka., 2017)
    Pollution of water sources, specially drinking water sources, is becoming a serious problem in the world today. Unlike organic pollutants, heavy metals are non-biodegradable and even trace amounts of some of the heavy ...
  • Determination of Multiple Antibiotic Resistant (MAR) and MAR Index in bacteria isolated from aquaculture farms. 
    Liyanage, G. Y.; Manage, P.M. (International Research Symposium on Pure and Applied Sciences, 2017 Faculty of Science, University of Kelaniya, Sri Lanka., 2017)
    Concurrent resistance to antibiotics of different structural classes has arisen in a multitude of bacterial species and cause complicating the therapeutic management for both human and animal. The objective of the study ...

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