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RISTCON 2020: Recent submissions

  • Identifying the factors affecting real LKR/USD exchange rate 
    Perera, S.S.N.P.; Lansakara, L.H.M.R.B. (Faculty of Science, University of Ruhuna, Matara, Sri Lanka, 2020-01-22)
    This study has investigated the macroeconomic factors affecting real LKR/USD exchange rate by using monthly data from January 2013 to July 2019. The explanatory variables of this study are net foreign assets, domestic ...
  • Analysis of factors affecting on milk consumption among Matara district consumers: A case study 
    Dilshani, S.D.M.; Jayasekara, L.A.L.W. (Faculty of Science, University of Ruhuna, Matara, Sri Lanka, 2020-01-22)
    Milk is one of the most essential foods to humans and it contains many nutrients such as protein, calcium, phosphorus, vitamin B2 and vitamin B12. Intake of a sufficient amount of milk products is recommended for healthy ...
  • Forecasting the price of petroleum products in Sri Lanka 
    Ranawaka, R.A.C.S. (Faculty of Science, University of Ruhuna, Matara, Sri Lanka, 2020-01-22)
    Crude oil, which has an important role in the global economy, can be recognized as one of the most important commodities for worldwide economic activity. This study leads to find the model to predict the future oil price ...
  • Application of ARIMA and ARIMAX models for forecasting paddy production in Anuradhapura district, Sri Lanka 
    Rathnayaka, N.K.; Laheetharan, A.; Satkunanathan, N. (Faculty of Science, University of Ruhuna, Matara, Sri Lanka, 2020-01-22)
    Rice is one of the main staple foods for people in Sri Lanka and many other Asian countries. A great majority of village people in Anuradhapura district is occupied in paddy farming as their main livelihood. Therefore, ...
  • Sumudu decomposition method for solving the “Camassa Holm-nonlinear Schrodinger equation” 
    Thushanthani, R.; Mathanaranjan, T. (Faculty of Science, University of Ruhuna, Matara, Sri Lanka, 2020-01-22)
    Please find the attached document for the Content of the Abstract.
  • Time series behavior of Indian visitors to Sri Lanka: A post conflict perception 
    Gnanapragasam, S.R. (Faculty of Science, University of Ruhuna, Matara, Sri Lanka, 2020-01-22)
    Tourism has become a main income source for many developing countries. In 2017, totally 1,326 million of tourists travelled worldwide which was 7% increase when compared to 2016. As a result of this, USD 1,340 billion have ...
  • An improved kNN algorithm using K-means and fastText to predict sentiments expressed in Tamil texts 
    Thavareesan, S.; Mahesan, S. (Faculty of Science, University of Ruhuna, Matara, Sri Lanka, 2020-01-22)
    With the intention to develop a suitable approach to perform Sentiment Analysis on Tamil Texts using K-means clustering with k-Nearest Neighbour (k-NN) classifier, a corpus (UJ_Corpus_Opinions) consisting of 1518 Positive ...
  • Classification of autoparatopisms of Latin cubes 
    Kumaranayake, M.V.S. (Faculty of Science, University of Ruhuna, Matara, Sri Lanka, 2020-01-22)
    An action on a Latin hypercube of dimension d and order n is called a paratopism if the action is an element of the wreath product Sn≀Sd+1. A paratopism is said to be an autoparatopism if there exists a Latin hypercube, ...
  • Statistical analysis on factors affecting income-inequality in Sri Lankan labour force 
    Liyana Arachchi, L.A.D.D.; Varathan, N. (Faculty of Science, University of Ruhuna, Matara, Sri Lanka, 2020-01-22)
    Studying inequality has become a crucial fact as inequality has increased considerably. The meaning of inequality refers to the difference in social status, wealth or opportunity between people or groups. There are many ...
  • Survival analysis on end stage renal disease patients in Polonnaruwa district 
    Gunasekera, H.S.P.; Satkunanathan, N. (Faculty of Science, University of Ruhuna, Matara, Sri Lanka, 2020-01-22)
    Chronic Kidney disease (CKD) is one of the major health issues in Sri Lanka, especially in the North Central Province. Further, End stage renal disease (ESRD) is the advanced stage of CKD. The purpose of this study is to ...
  • Unveiling an optimum method for modeling cluster S0 galaxies 
    Samararathna, K.G.; Alahakoon, A.G.P.D.; Prasadh, K.V.S.; Barkhouse, W.A.; De Silva, W.M.K.; Perera, H.A.D.S.D.; Mahanama, G.D.K. (Faculty of Science, University of Ruhuna, Matara, Sri Lanka, 2020-01-22)
    Galaxies and galaxy clusters provide hidden secrets of the formation and evolution of the universe. Lenticular or S0 type galaxies are defined as transitional galaxies between ellipticals and spirals. The formation of S0 ...
  • Compressibility characteristics of synthetic municipal solid waste at different phases of biodegradation 
    Pradeep, W.T.R.A.; Priyankara, N.H. (Faculty of Science, University of Ruhuna, Matara, Sri Lanka, 2020-01-22)
    Results of a laboratory investigation conducted to determine compressibility characteristics of synthetic municipal solid waste (SMSW) at different phases of biodegradation is presented. SMSW samples were prepared based ...
  • Investigation of sound absorption properties of selected fruit plants 
    Amarasingha, N.D.; Thilakarathna, D.M.D.N.; Gunasekara, T.M.A.D.; Bodhika, J.A.P.; Dharmaratna, W.G.D.; Jayatissa, L.P. (Faculty of Science, University of Ruhuna, Matara, Sri Lanka, 2020-01-22)
    Four selected fruit plants, Flacourtia inermis (fලdú), Achras sapota (සැප†ල්ලා), Averrhoa carambola (කාමරංකා), Syzygium jambos (ජïබු), were studied for their sound absorption properties. Reverberation room method described ...
  • Meshfree based computationally efficient simulation of different shaped plant cells using the cell linked list algorithm 
    Hansani, K.G.P.; Sumith, B.; Karunasena, H.C.P. (Faculty of Science, University of Ruhuna, Matara, Sri Lanka, 2020-01-22)
    This work presents an application of the Cell-Linked List Algorithm (CLLA) to improve the computational performance of Smoothed Particle Hydrodynamics (SPH) based plant cell with different cell shapes. CLLA is a computationally ...
  • Acetonitrile free liquid electrolyte for dye-sensitized solar cells 
    Umair, K.; Dissanayake, M.A.K.L.; Senadeera, G.K.R. (Faculty of Science, University of Ruhuna, Matara, Sri Lanka, 2020-01-22)
    Dye-sensitized solar cells (DSSCs) are the third generation, low cost photo electrochemical cells in solar energy harvesting applications. DSSCs usually employ a liquid electrolyte based on acetonitrile and the iodide/triiodide ...
  • Efficiency enhancement in dye sensitized solar cells with blended PVdF-HFP and PEO gel electrolytes 
    Kumari, J.M.K.W.; Dissanayake, M.A.K.L.; Senadeera, G.K.R.; Thotawatthage, C.A. (Faculty of Science, University of Ruhuna, Matara, Sri Lanka, 2020-01-22)
    Electrolyte plays an important role in the photovoltaic performance of dye-sensitized solar cells (DSSCs) as it is responsible for efficient electron transfer from the counter electrode to the sensitizer via the redox ...
  • Design and construction of a low-cost AC conductivity meter to test solutions 
    Hansini, K.L.T.; Abeywickrama, S.S.; Wickramasuriya, N.T. (Faculty of Science, University of Ruhuna, Matara, Sri Lanka, 2020-01-22)
    Conductivity measurements in freshwater samples are crucial as drinking high conductive water could lead to health issues. A low-cost conductivity meter was constructed to measure low conductivities in the range that ...
  • Efficiency enhancement in dye-sensitized solar cells by co-sensitization with CdS quantum dots 
    Jaseetharan, T.; Dissanayake, M.A.K.L.; Senadeera, G.K.R. (Faculty of Science, University of Ruhuna, Matara, Sri Lanka, 2020-01-22)
    Quantum dots have received a considerable attention over the past decade due to their low fabrication cost and exceptional optoelectronic properties including tunable band gap with size by the quantum confinement effect ...
  • Investigate factors causing deviations in construction project schedules and eliminate the reasons cause to projects delays in Sri Lanka 
    Perera, H.S.; Vijayaragunathan, S.; Thalpage, R. (Faculty of Science, University of Ruhuna, Matara, Sri Lanka, 2020-01-22)
    The ultimate goat of a construction firm is to complete a project with expected quality, within the estimated period and the budget. However, many projects in Sri Lankan construction industry experience extensive delays, ...
  • Gender, race and religion prediction of Sri Lankan personal names using machine learning techniques 
    Chathuranga, P.D.T.; Loresnsuhewa, S.A.S.; Kalyani, M.A.L. (Faculty of Science, University of Ruhuna, Matara, Sri Lanka, 2020-01-22)
    Prediction of identification details such as gender, race and religion of a person can help natural language processing related tasks to perform better. Also it can be used to speed up the existing digital application ...

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