Browsing RISTCON 2022 by Title

Browsing RISTCON 2022 by Title

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  • Performance of surface modified pyrolytic carbon black in rubber compounding 
    De Zoysa, D.M.D.A.; Sudusingha, Y.C.Y.; Hewage, J.S.; Ranaweera, S.A. (Faculty of Science, University of Ruhuna, Matara, Sri Lanka, 2022-01-19)
    Waste tyres pyrolysis (WT- pyrolysis) process provides a sustainable solution for waste tyre recycling. Value addition to pyrolytic tyre char (PT char) is particularly essential because it will reduce enormous inventories ...
  • Performance prediction in time-sharing servers using simulation approach 
    Perera, T.D.J.S.; Rajapakse, C. (Faculty of Science, University of Ruhuna, Matara, Sri Lanka, 2022-01-19)
    Although the concept of time-sharing was invented a long time ago to make better use of expensive processor time, it is still in use and applicable in the current era. To provide excellent customer service while minimizing ...
  • Phenotypic plasticity in orange and black color-patches in wild guppy (Poecilia reticulata Peters) linked to habitat characteristics 
    Jayawickrama, R.G.D.R.; Gunawickrama, K.B.S. (Faculty of Science, University of Ruhuna, Matara, Sri Lanka, 2022-01-19)
    The colors of male guppies vary in hue, chroma, reflectivity, and the number, size, and position of color spots. Although conspicuous visual cues play a major role in sexual selection, they may also pose a risk of predation ...
  • Phytochemical profile and In vitro sun protective activity of Wrightia antidysenterica, Ipomoea pescaprae and Ipomoea aquatica flower extracts 
    Paranamana, V.S.; Jayasekara, H.D; Bulugahapitiya, V.P. (2022-01-19)
    W. antidysenterica, I. pescaprae, and I. aquatica are known as important medicinal plants in Sri Lanka and are widely utilized in traditional medicine. Flowers are used in the preparation of medicines for the treatment ...
  • Phytoremediation of effluent generated by parboiling of paddy in rice mills 
    Ekanayake, E.M.A.M.; Prabhaharan, M. (Faculty of Science, University of Ruhuna, Matara, Sri Lanka, 2022-01-19)
    Parboiled rice is gaining more popularity among Sri Lankans as it is healthier than raw rice. When paddy is parboiled, a huge amount of water is generated. Since this wastewater is high in nutrients, it may create environmental ...
  • Popular repeated significance type of sequential tests for binary responses 
    Abirami, N.G.N.; Sooriyarachchi, M.R. (Faculty of Science, University of Ruhuna, Matara, Sri Lanka, 2022-01-19)
    Fixed sample clinical trials involve humans that are accumulated over a considerably large period of time in order to achieve the pre-specified sample size calculated prior to the study. These designs are somewhat impractical ...
  • Powder X-ray diffraction (PXRD) analysis of usnic acid in five selected lichen species from Sri Lanka 
    Suriyaarachchi, H.; Athukorala, A.D.S.N.P.; Beligala, B.A.D.H. (Faculty of Science, University of Ruhuna, Matara, Sri Lanka, 2022-01-19)
    Cancer remains a global health problem despite the continuous development of anticancer therapies. The discovery of anticancer drugs from diverse natural sources has recently gained a focus. Lichens are a widespread ...
  • Predicting dengue fever cases using Time Series Model and Hidden Markov Model in Sri Lanka 
    Munasinghe, B.S.N.G.; Perera, K.K.K.R. (Faculty of Science, University of Ruhuna, Matara, Sri Lanka, 2022-01-19)
    Dengue fever is one of Sri Lanka's most serious health problems, wreaking havoc on the country's social and economic infrastructure. Dengue fever is a mosquito-borne viral disease that has recently risen considerably. A ...
  • Preliminary Pages 
    Science (Faculty of Science, University of Ruhuna, Matara, Sri Lanka, 2022-11-02)
  • A preliminary study on the perceived mental stress among undergraduates at the University of Ruhuna due to online education during the COVID-19 period 
    Hasangani, N.D.S.; Ranathunga, M.B.N; Karunaratne, V.G.S.I; Madhushika, T.D.T; Chandrasiri, T.L.A.N; Gayashani, W.I.A; Ranawaka, R.A.D.S; Himansi, M.D.N; Ranaweera, K.K.A.S; Rangajeewa, B.V.A; Bodhika, J.A.P; Jayasekara, L. (Faculty of Science, University of Ruhuna, Matara, Sri Lanka, 2022-01-19)
    E-learning gained immense popularity during the COVID 19 period but had different impacts on the students. This study investigated the mental stress perceived by undergraduates in the faculties of the University of Ruhuna ...
  • A preliminary study on the use of formant analysis of Sinhala vowel sounds for distinguishing caller's age 
    Pushpakumara, R.A.M.; Alwis, P.H.A.S.; Bodhika, J.A.P. (Faculty of Science, University of Ruhuna, Matara, Sri Lanka, 2022-01-19)
    Automatic caller identification has become a challenging research problem due to its wide variety of applications. This study used formant analysis of Sinhala vowel sounds to identify caller’s age, mainly ranging from16 ...
  • Purification and application of pyrolytic carbon char in paint formulations 
    Liyanagamage, V.; Ravihari, C.; Jayasekara, H.D; Sampath, W.A.U.; Ranaweera, S.A. (Faculty of Science, University of Ruhuna, Matara, Sri Lanka, 2022-01-19)
    In waste tyre pyrolysis process, the generation of pyrolytic char (PT-char), a byproduct, is problematic as it has a minimum market value due to the presence of many impurities. In order to improve the market value of ...
  • Quadratic nonlinear optical properties of photochromic DTE–containing ruthenium complexes 
    Wanigasekara, W.W.N.P.; Humphrey, M.G.; Kodikara, M.S. (Faculty of Science, University of Ruhuna, Matara, Sri Lanka, 2022-01-19)
    Interest in molecular switches has grown enormously in recent years due to their applications in current and prospective fabrication of smart soft materials and photonics technologies. A variety of organic and metal- ...
  • Quality evaluation of different brands of Atorvastatin tablets available in Sri Lanka 
    Thanusika, N.; Kaushalya, G.S.H.; Alwis, K.P.B.; Thuvaragan, S. (Faculty of Science, University of Ruhuna, Matara, Sri Lanka, 2022-01-19)
    Atorvastatin is one of the mostly used statins in treating atherosclerosis. The substandard quality of generic medicines affects their therapeutic efficacy resulting in treatment failure. There are several generics of ...
  • Red mold rice water extracts to inhibit adipogenesis in vitro 
    Wanninaika, I.P.; Chamari, H.; Perumpuli, P.A.B.N.; Kaumal, M.N. (Faculty of Science, University of Ruhuna, Matara, Sri Lanka, 2022-01-19)
    Monascus-fermented products are being used as food and medicine for over thousands of years. Due to the water solubility, adipogenesis inhibitors from Monascus-fermented products can be used in food or nutraceutical ...
  • Relationship between reservoir morphometry and chitin yield of giant freshwater prawn (Macrobrachium rosenbergii) collected from different reservoirs in Sri Lanka 
    Sanuja, R.G.; Deepananda, K.H.M.A.; Jayasinghe, U.A.D.; Lakshman, P.L.N. (Faculty of Science, University of Ruhuna, Matara, Sri Lanka, 2022-01-19)
    Chitin, the second most available carbohydrate in nature next to cellulose is a modified polysaccharide that contains nitrogen. Chitin is a primary compound in exoskeletons of Macrobrachium rosenbergii, one of the major ...
  • Remotely operated ship hull painting robot 
    Chandrasena, A.G.A.S; Vitharana, V.H.P; Weerasekara, B. (Faculty of Science, University of Ruhuna, Matara, Sri Lanka, 2022-01-19)
    Ship hull coating is a critical and difficult procedure in the shipping industry. This operation is usually carried out using human resources. To drive around the ship hull, this procedure necessitates two workers and a ...
  • Selection of carrier matrix for bacteria-mediated bioremediation in aquatic environments 
    Randima, G.W.A.P.; Masakorala, K.; Yapa, Y.M.L.A.W.; Widana Gamage, S.M.K. (Faculty of Science, University of Ruhuna, Matara, Sri Lanka, 2022-01-19)
    Water pollution and the outbreak of algal blooms are emerging environmental issues in many parts of the world. There is a growing concern on the application of bacteria-mediated bioremediation and bio control strategies ...
  • Silica extraction and chemical analysis of rice husk in Sri Lanka 
    Kumari, G.R.D.S.; Ratnaweera, C.N. (Faculty of Science, University of Ruhuna, Matara, Sri Lanka, 2022-01-19)
    Rice husk is an abundant agricultural waste in Sri Lanka. However, waste rice husk are being utilized as a source for raw material to manufacture value-added products and materials such as construction materials, filters, ...
  • Sri Lankan speech therapists during COVID-19 
    Dilshani, R.M.; De Silva, M.D.K. (Faculty of Science, University of Ruhuna, Matara, Sri Lanka, 2022-01-19)
    COVID-19 pandemic has interrupted the speech and language therapy services in Sri Lanka. With the rapid spread of the virus, the responsibilities of the speech and language therapists’ (SLTs) included to reduce the risk ...

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