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Browsing International Research Symposium on Pure and Applied Sciences (IRSPAS) by Title

Browsing International Research Symposium on Pure and Applied Sciences (IRSPAS) by Title

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  • Natural language processing framework: WordNet based sentimental analyzer 
    Jayakody, J.R.K.C. (Faculty of Science, University of Kelaniya, Sri Lanka, 2016)
    Sentimental analysis is a technique which is used to classify different types of documents as positive, negative or neutral. Hand written form, mails, telephone surveys or online feedback forms are used to get customer ...
  • Nematicidal activity of Annona glabra aqueous plant extract and extracellular metabolites of two Trichoderma species on root knot nematode Meloidogyne incognita 
    Lakmini, W. V.; Amarasinghe, L. D. (Research Symposium on Pure and Applied Sciences, 2018 Faculty of Science, University of Kelaniya, Sri Lanka, 2018)
    The root knot nematode, Meloidogyne incognita, is the most widespread and serious nematode pest damaging root systems of a variety of agricultural and ornamental crops in tropical and subtropical countries throughout the ...
  • 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 ...
  • A new Sodium based electrolyte – PEO10NaBrO3 
    Sankalpa, H. A. C.; Sumathipala, H. H.; Wijesundera, R. P. (4th International Research Symposium on Pure and Applied Sciences, Faculty of Science, University of Kelaniya, Sri Lanka, 2019)
    The necessity of new and environmental friendly rechargeable batteries is increasing day by day due to the current technology development and power demand. Hence, efficient and low-cost new electrolyte materials have to ...
  • Nitric oxide biosynthesis in Arabidopsis: Amine oxidases are potential candidates 
    Wimalasekera, R. (Research Symposium on Pure and Applied Sciences, 2018 Faculty of Science, University of Kelaniya, Sri Lanka, 2018)
    Nitric oxide (NO) regulates an array of developmental and physiological processes in plants including germination, flowering, and senescence. NO plays an important role as a signaling molecule in abiotic and biotic stresses. ...
  • Nonparametric multiple comparisons and simultaneous confidence intervals for multivariate designs 
    Gunawardana, A.; Konietschke, F. (4th International Research Symposium on Pure and Applied Sciences, Faculty of Science, University of Kelaniya, Sri Lanka, 2019)
    Over the last half-century, the use of multivariate designs has grown rapidly in many scientific disciplines. Such designs can have more than two possibly correlated response variables (endpoints) observed on each experimental ...
  • Novel membranes for treatment of water: Graphene oxide membranes cross-linked with metal cations 
    Bandara, W. R. N. M.; Liyanage, J. A.; Kumarasinghe, A. R. (4th International Research Symposium on Pure and Applied Sciences, Faculty of Science, University of Kelaniya, Sri Lanka, 2019)
    Declining of water resources and rapid expansion of the consumption of water worldwide have led to the search of novel water treatment technologies that can provide a safe water supply to the mankind. Graphene oxide (GO), ...
  • A novel potentiometric ion selective sensor based on piperine for determination of Fe3+ ions 
    Haputhanthri, M.; Perera, L.H.R. (2018)
    Iron plays a vital role in humans as iron deficiency cause anemia and overload of iron leads to haemochromatosis. In plants, chlorosis is a common plant disorder that arises as a result of iron deficiency, whilst excess ...
  • Novel slow switching technique for efficient solar energy harnessing for off grid photovoltaic systems 
    Piyumal, P. L. A. K.; Ranaweera, A. L. A. K.; Kalingamudali, S. R. D.; Kularatna, N. (proceedings of the 4th International Research Symposium on Pure and Applied Sciences 2019, Faculty of Science, University of Kelaniya, Sri Lanka, 2019)
    Electricity consumers in remote areas where the grid connection is not available rely on diesel generators or off grid photovoltaic (P V) systems. These PV systems uses battery banks as backup energy storage. Those ...
  • Novel solid phase micro extraction (SPME) Method for GC-MS analysis of Tributyltin. 
    Bandara, K. R. V.; Chinthaka, S. D. M.; Manage, P.M. (4th International Research Symposium on Pure and Applied Sciences, Faculty of Science, University of Kelaniya, Sri Lanka, 2019)
    Tributyltin (TBT) is an organotin compound belongs to the group of Persistent Organic Pollutants (POPs) and one of the active ingredients in biocides used to control a broad spectrum of organisms. Antifouling paints which ...
  • A novel, ultra-fast electrochemical tool to study speciation of trace metals in aqueous solution 
    Pathirathna, P.; Siriwardhane, T.; McElmurry, S.P.; Morgan, S.L.; Hashemi, P. (Faculty of Science, University of Kelaniya, Sri Lanka, 2016)
    Trace metals play important roles in biological and ecological systems. In biology, trace metals act as catalytic or structural cofactors and regulate biochemical processes. In the environment, natural and anthropogenic ...
  • 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 and hormonal effect of Sargassum wightii (a seaweed) extract on in vitro sub-culturing medium of Gerbera 
    Silva, M. M. M.; Herath, H. M. I.; Kumara, G. D. K. (Research Symposium on Pure and Applied Sciences, 2018 Faculty of Science, University of Kelaniya, Sri Lanka, 2018)
    Seaweed extracts are considered as bio-stimulants in agriculture. However, in agriculture and horticulture industry, it has not been fully exploited and adapted in crop production systems. Hence, the present study was ...
  • 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 ...
  • Observation of surface potential on evaporated mixed films of TPBi with CBP as function of the film thickness 
    Gunawardana, H. D. C. N.; Osada, K.; Koswattage, K. R.; Noguchi, Y. (Research Symposium on Pure and Applied Sciences, 2018 Faculty of Science, University of Kelaniya, Sri Lanka, 2018)
    Organic light emitting devices have been extensively investigated for many promising applications. Surface Potential (SP) is essential to characterize the fabrication process of Organic Light Emitting Diode (OLED). In the ...
  • 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. ...
  • 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 ...
  • 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 ...

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