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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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  • Default risk and debt recovery strategies of microfinance providers: A comparative study in Sri Lanka. 
    Kalpani, B. L. W.; Abeysekera, R. (International Research Symposium on Pure and Applied Sciences, 2017 Faculty of Science, University of Kelaniya, Sri Lanka., 2017)
    The objective of this research is to identify and compare strategies used by six different Microfinance Institutions (MFIS) in Sri Lanka in order to minimize the risk of loan default and to recover debt. It also evaluates ...
  • Defluoridation of drinking water using physically and chemically modified chitosan 
    Pathirannehe, P. N. S.; Fernando, T. D.; Rajapakse, C. S. K. (Research Symposium on Pure and Applied Sciences, 2018 Faculty of Science, University of Kelaniya, Sri Lanka, 2018)
    Depending on the total intake, fluoride (F-) is known to have both beneficial and adverse effects on humans. As the occurrence of the Chronic Kidney Disease of unknown etiology (CKDu) is thought to be linked with excess ...
  • Degradation of selected pesticides in soil in selected areas in Medawachchiya and HPLC analysis of pesticides 
    Dassanayake, D. S.; De Silva, R. C. L. (4th International Research Symposium on Pure and Applied Sciences, Faculty of Science, University of Kelaniya, Sri Lanka, 2019)
    It is known that diabetes, hypertension and different forms of glomerular nephritis are known etiologies of Chronic Kidney Disease (CKD). However, over the last two decades, a new strain of CKD known as Chronic Kidney ...
  • Derive and validate an allometric model for the biomass gain of Tectonia grandis (Teak) in Sri Lanka 
    Wijayasenarathne, K. A. S. H.; Bandara, W. A. R. T. W. (4th International Research Symposium on Pure and Applied Sciences, Faculty of Science, University of Kelaniya, Sri Lanka, 2019)
    Forest plantations play a crucial role in mitigating climate change. Tectonia grandis has the highest occupancy among plantation species in Sri Lanka, expanding into 23266.5 ha in 2018. Objective of this study was to develop ...
  • Design and construction of low cost petri dish incubator 
    Wanigasekara, G.; Perera, N.W.; Abeysinghe, D.; Geegamage, S.S.; Wijekoon, D.; Jayathilaka, N. (Faculty of Science, University of Kelaniya, Sri Lanka, 2016)
    Petri dish incubators are used in laboratories to keep petri dish samples at a stable and optimal temperature of 37 °C. Incubators are one of the frequently needed equipment. These incubators are expensive due to the use ...
  • Design and implementation of automated heat shrink cutting process for industrial usage 
    Rajapaksha, R. M. D. M.; Dhananjaya, S.S.; Wijesuriya, M. W. A. S. H.; Fernando, K. M. S.; Ranaweera, A. L. A. K.; Kalingamudali, S. R. D. (proceedings of the 4th International Research Symposium on Pure and Applied Sciences 2019, Faculty of Science, University of Kelaniya, Sri Lanka, 2019)
    An automated heat shrink cutting process for industrial usage has been designed and a prototype model implemented. The designed system consists of a microcontroller, a keypad, a stepper motor, and an ac synchronous ...
  • 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 ...
  • Detection of cyber bullying on social media networks 
    Priyangika. S.; Jayalal, S. (Faculty of Science, University of Kelaniya, Sri Lanka, 2016)
    Social Media is becoming an integral part of people’s daily lives today. It is an effective way of sharing one’s life experiences, special occasions, achievements and other events with their friends and family. Although ...
  • Detection of cylindrospermopsin and microcystin-LR in well water of CKDu prevalent Medirigiriya, Sri Lanka 
    Abeysiri, H.A.S.N.; Wanigasuriya, K.; Manage, P.M. (Research Symposium on Pure and Applied Sciences, 2018 Faculty of Science, University of Kelaniya, Sri Lanka, 2018)
    Cyanobacterial blooms in aquatic systems have increased over recent decades. Many of the blooms are highly toxic, causing a serious hazard to human and animal health. The commonest cyanotoxins are hepatotoxins such as ...
  • Determination of air way pressure generated by positive expiratory pressure device (blow bottle) using computational fluid dynamic analysis 
    Silva, M. D. C.; Wijesinghe, W. L. P. K.; Atapattu, P. M.; Fernando, S.; Wijesinghe, R. A. N. K.; Santos, M. D. (Research Symposium on Pure and Applied Sciences, 2018 Faculty of Science, University of Kelaniya, Sri Lanka, 2018)
    Positive expiratory pressure (PEP) therapy is used by respiratory physiotherapists to prevent post-operative pulmonary complications such as atelectasis and pneumonia. PEP therapy involves breathing out against a resistor ...
  • Determination of an eligible location for installation of a solar panel system in the University of Kelaniya using GIS 
    Heshani, A.L.S.; Athukorala, S.M.W.; Leelarathna, W.D.S.R.; Weerasinghe, V.P.A. (Faculty of Science, University of Kelaniya, Sri Lanka, 2016)
    According to the international energy agency, the role of renewables continue to increase in the electricity, heating and cooling and transport sectors. Newly develop technology in photovoltaic cells that have the potential ...
  • Determination of anti-diabetic properties in Cinnamomum zeylanicum 
    De Silva, W. D. T.; Jayawardane, B. M. (Research Symposium on Pure and Applied Sciences, 2018 Faculty of Science, University of Kelaniya, Sri Lanka, 2018)
    Diabetes is one of the major complications that millions of individuals in the world faces today. If two key enzymes, the α amylase and α glucosidase are inhibited, it can lower the possibility to develop diabetes. Synthetic ...
  • Determination of antimicrobial efficacy of some commercially available therapeutic mouthwashes 
    Rathnayake, R. M. S. U.; Jayaratne, D. L. (4th International Research Symposium on Pure and Applied Sciences, Faculty of Science, University of Kelaniya, Sri Lanka, 2019)
    Mouthwashes are medically formulated liquids, which are held in the mouth and swished by the action of perioral musculature to eliminate oral pathogens. Many mouthwashes are often used by people as they are prescribed by ...
  • Determination of enhancement of atmospheric heavy metal concentration and total nitrogen content in moss from traffic exposure 
    Perera, L. E. H.; Deeyamulla, M. P. (Research Symposium on Pure and Applied Sciences, 2018 Faculty of Science, University of Kelaniya, Sri Lanka, 2018)
    Heavy metal concentration and total nitrogen content were surveyed using moss as a bioindicator. The effect of NOX emissions from traffic on moss tissue nitrogen and tissue concentrations of Pb, Cu, Cd and Cr were determined. ...
  • Determination of heavy metals in soil in chronic kidney disease of unknown etiology affected areas of Karanbankulama (A preliminary study 
    Rajaguru, R. A. M. T. S.; Subramanium, S.S.; De Silva, R. C. L. (4th International Research Symposium on Pure and Applied Sciences, Faculty of Science, University of Kelaniya, Sri Lanka, 2019)
    The increased prevalence of Chronic Kidney Disease of unknown etiology (CKDu) among specific occupational groups confined to specific geographical regions of Sri Lanka has dragged the attention of scientific community in ...
  • Determination of in vitro sun protection factor of extract of neem leaves and neem oil. 
    Amarathunga, A.A.M.D.D.N.; Kankanamge, S.U.; Sanjeewani, N.A.; Pathirana, R.N.; Rathnasooriya, W.D. (International Research Symposium on Pure and Applied Sciences, 2017 Faculty of Science, University of Kelaniya, Sri Lanka., 2017)
    Neem (Azadirachta indica) is one of the most versatile medicinally and cosmetically valuable plants having a wide spectrum of biological activities such as antimicrobial, anti-inflammatory, antioxidant, antipyretic, ...
  • 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 ...
  • Determination of narcotic (morphine, codeine, 6-monoacetylmorphine) levels in human urine by gas chromatoghraphy 
    Manohari, I. D. M.; Karunaratne, W. D. V.; Abeysinghe, T. (4th International Research Symposium on Pure and Applied Sciences, Faculty of Science, University of Kelaniya, Sri Lanka, 2019)
    Drug abuse has become a more prevalent problem in Sri Lanka in the last few years. The presence of residues and their metabolites of illicit drugs that are excreted by humans is an evidence of intake. Therefore, the aim ...
  • Determination of photoprotective potential in sunscreen formulations with different concentrations of Olax zeylanica (Mella) extract 
    Liyanaarachchi, C. E.; Napagoda, M.; Malkanthi, S.; Abayawardana, K.; Witharana, S.; Jayasinghe, L. (Research Symposium on Pure and Applied Sciences, 2018 Faculty of Science, University of Kelaniya, Sri Lanka, 2018)
    The ultra-violet (UV) component of the solar radiation can cause various deleterious effects on the human skin. The occurrence of wide range of dermatological diseases are correlated with the excessive exposure to UV ...
  • Determination of polycyclic aromatic hydrocarbons in black tea at different processing stages. 
    Sithara, T. A. H.; Marapana, R. A. U. J.; Liyanage, R.; Senanayaka, S. (4th International Research Symposium on Pure and Applied Sciences, Faculty of Science, University of Kelaniya, Sri Lanka, 2019)
    Polycyclic Aromatic Hydrocarbons (PAHs) are ubiquitous organic molecules considered as environmental pollutants, generally enter to the environment during incomplete combustion of organic materials. Various foods have been ...

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