IRSPAS 2018: Recent submissions

  • Predator-prey model with fuzzy initial conditions 
    Ravindran, U. M.; Perera, B. B. U. P. (Research Symposium on Pure and Applied Sciences, 2018 Faculty of Science, University of Kelaniya, Sri Lanka, 2018)
    Predator-prey model, an initial value problem which is found in real life describes the relationship between predators and preys in an ecosystem, consisting of two nonlinear, autonomous differential equations. As it is an ...
  • Comparing the performance of randomization tests and classical non-parametric tests 
    Hapuarachchi, H. T. S.; Magalle, C. H. (Research Symposium on Pure and Applied Sciences, 2018 Faculty of Science, University of Kelaniya, Sri Lanka, 2018)
    In the present world of data, there are plenty of instances where data does not adhere to the parametric assumptions. However, with the development of technology and computational facilities, Randomization Tests have become ...
  • Off-line signature verification system using artificial neural networks 
    Ambegoda, A. L. T. P.; Perera, B. B. U. P. (Research Symposium on Pure and Applied Sciences, 2018 Faculty of Science, University of Kelaniya, Sri Lanka, 2018)
    Handwritten signature recognition method is the most popular recognition method of a personal identity. But it is easy to misuse that the signature forgery has become a great threat to the accuracy of the documentary. In ...
  • Some results related with coarse structure, coarse map and coarse equivalent 
    Kajan, N.; Kannan, K. (Research Symposium on Pure and Applied Sciences, 2018 Faculty of Science, University of Kelaniya, Sri Lanka, 2018)
    Coarse spaces are sets equipped with a coarse structure, which describe the behavior of the space at the large distance. Coarse space is defined for large scale in metric space similar to the tool provided by topology for ...
  • Formulation of a pectin-based food wrapper enriched with antioxidant and antibacterial properties 
    Jayasinghe, S. K.; De Silva, H. I. C. (Research Symposium on Pure and Applied Sciences, 2018 Faculty of Science, University of Kelaniya, Sri Lanka, 2018)
    Accumulation of non-degradable polyethylene on earth creates imbalance in environmental sustainability. Natural bio polymers like pectin can be used as a versatile, low-cost solution for this problem. Main objectives of ...
  • Microwave assisted extraction of pectin from the peel of Citrus reticulata 
    De Silva, P. H. T. D.; De Silva, H. I. C. (Research Symposium on Pure and Applied Sciences, 2018 Faculty of Science, University of Kelaniya, Sri Lanka, 2018)
    Pectin is a heteropolysaccharide mainly consists of a linear chain of linked galacturonic acids. Citrus fruits like lemon, orange, and apple pomace are rich in pectin. Pectin is utilized in food, cosmetics, and pharmaceutical ...
  • Time series modeling of red onion production in Jaffna, Sri Lanka 
    Mirojan, U.; Varathan, N.; Arumairajan, S. (Research Symposium on Pure and Applied Sciences, 2018 Faculty of Science, University of Kelaniya, Sri Lanka, 2018)
    Onion is one of the most important commercial vegetable crops grown in Sri Lanka. Observing fluctuation of onion production is essential in the market economy. The level of the production and the fluctuation not only has ...
  • Statistical modelling of monthly electricity sales in Colombo: ARIMA approach 
    Herath, H. M. R. D. S.; Varathan, N. (Research Symposium on Pure and Applied Sciences, 2018 Faculty of Science, University of Kelaniya, Sri Lanka, 2018)
    Electricity is the most essential form of energy, used all over the globe. It has influenced the economy, public health, technological growth and all other spheres of human activities. The electricity sales are growing day ...
  • Design and performance investigation of a canonical circuit model for power converters 
    Sandanayake, P. S. D.; Jayatissa, N. W. K. (Research Symposium on Pure and Applied Sciences, 2018 Faculty of Science, University of Kelaniya, Sri Lanka, 2018)
    A “Switched Mode Power Supply (SMPS)” is an electronic device that involves switching regulation for efficient power conversion. They take power from an AC or a DC input, and produce a processed current/voltage output of ...
  • An enhanced amplitude estimation system for sinusoidal signals based on phase sensitive detection 
    Ajward, A. M. (Research Symposium on Pure and Applied Sciences, 2018 Faculty of Science, University of Kelaniya, Sri Lanka, 2018)
    Highly accurate estimations of the amplitudes of sinusoidal signals that are associated with huge noise levels have many practical applications especially in domains such as research, medicine, and industry. Under considerably ...
  • Bound on Weierstrass vertices of graphs 
    De Vas Gunasekara, A. R. C.; Brennan, J. (Research Symposium on Pure and Applied Sciences, 2018 Faculty of Science, University of Kelaniya, Sri Lanka, 2018)
    Chip-firing games and divisor theory on finite, connected, undirected and unweighted graphs have been studied as analogs of divisor theory on Riemann Surfaces and algebraic curves. As part of this theory, a version of the ...
  • A theoretical study of variable stars 
    Wijethunga, A. T. M.; Perera, P. A. A. (Research Symposium on Pure and Applied Sciences, 2018 Faculty of Science, University of Kelaniya, Sri Lanka, 2018)
    A variable star is, quite simply, a star that changes its brightness with a certain regularity. The Energy required for pulsation stars’ continuous operation is provided by a complex mechanism of transforming the thermal ...
  • Effect of solid-state fermentation by Rhizopus oryzae on rice bran bioactives, their bioactivity, bioaccessibility and bioavailability 
    Janarny, G.; Gunathilake, K. D. P. P. (Research Symposium on Pure and Applied Sciences, 2018 Faculty of Science, University of Kelaniya, Sri Lanka, 2018)
    Rice bran is a rich source of bioactive compounds. It is an underutilized agro-industrial residue for human consumption. Solid-state fermentation has been employed as a processing technique to increase the content of ...
  • Seed dormancy, germination and soil seed bank composition of 12 common rice weeds of Sri Lanka 
    Alahakoon, A. A. C. B.; Abeysiriwardena, D. S. D. Z.; Damunupola, J. W.; Gam-Arachchige, N. S. (Research Symposium on Pure and Applied Sciences, 2018 Faculty of Science, University of Kelaniya, Sri Lanka, 2018)
    Weeds are a major problem that affects rice production causing heavy economic losses. This study was conducted to investigate seed dormancy and germination of common paddy weeds in Sri Lanka and their soil seed bank status. ...
  • An effective DNA extraction protocol for Santalum album (Sandalwood) of Sri Lanka 
    Perera, U. I. D.; Welikala, N. (Research Symposium on Pure and Applied Sciences, 2018 Faculty of Science, University of Kelaniya, Sri Lanka, 2018)
    Isolation of genomic DNA is the primary step in studying molecular aspects in any organism. But, this is challenging in medicinal plants due to the presence of higher amounts of polyphenols and secondary metabolites. In ...
  • Important physiochemical properties of selected underutilized yams and development of cup-cakes using “Raja ala” (Dioscorea alata) flour 
    Gunasekara, G. D. M.; Wickramasinghe, I.; Wijesekara, I. (Research Symposium on Pure and Applied Sciences, 2018 Faculty of Science, University of Kelaniya, Sri Lanka, 2018)
    Sri Lanka has many underutilized yams with high nutritional potential. Most of these underutilized species have lost their significance among the present generation due to many reasons such as urbanization and changing ...
  • Morphometry and pollen germinability of selected commercial Dendrobium cultivars 
    Kahagalla, T. H.; Hearth, H. M.; Attanayake, R. N.; Senanayake, S. P. (2018)
    Dendrobium is one of the highly demanding ornamental plant genus in Sri Lanka. However, taxonomic identification of Dendrobiums are not straightforward and it is often complicated with the introduction of large number of ...
  • Anatomy and chromium tolerance of green leafy vegetable, Alternanthera sessilis and its sympatric weed, Alternanthera philoxeroides 
    Siriwardhana, K. H. W.; Ratnayake, R. M. C. S. (Research Symposium on Pure and Applied Sciences, 2018 Faculty of Science, University of Kelaniya, Sri Lanka, 2018)
    Heavy metals can be readily taken up by crop roots and can be accumulated at high levels in edible parts. Elevated levels of heavy metal in edible parts of vegetables can affect human health. Some food plants in Sri Lanka ...
  • Effect of aqueous extracts of Annona glabra plant and extracellular metabolites of two Trichoderma species on the survival of larval Culex quinquefasciatus and eggs of Aedes aegypti 
    Aberathna, A. A. A. U.; Ranasinghe, H. A. K.; Rajapaksha, R. D. T.; Amarasinghe, L. D. (Research Symposium on Pure and Applied Sciences, 2018 Faculty of Science, University of Kelaniya, Sri Lanka, 2018)
    Phytochemicals constitute a rich source of bioactive chemicals and some microbial products carry selective toxicity to many insect species, hence those are considered as alternatives to chemical insecticides. This study ...
  • Efficient ethanologenic yeast isolates for potential application in bioethanol production 
    Jayasekara, S. K.; Abayasekara, C. L.; Ratnayake, R. R. (Research Symposium on Pure and Applied Sciences, 2018 Faculty of Science, University of Kelaniya, Sri Lanka, 2018)
    Yeast plays an essential role in bioethanol production as sugar fermenters. As all yeasts are not efficient ethanol producers, evaluation of yeast for ethanol production ability is essential if novel yeast varieties are ...

Search Digital Repository


Browse

My Account