Recently added

RISTCON 2023: Recent submissions

  • Investigation of an effective evaporation pond for sea salt extraction 
    Mufeeth, M.M.; Vitharana, V.H.P. (Faculty of Science, University of Ruhuna, Matara, Sri Lanka, 2023-01-18)
    Salt (sodium chloride) is a food flavoring and seasoning agent, which plays a considerable role as an essential nutrient, texture provider, and color enhancer. However, the production of salt is insufficient to the nation, ...
  • Fabrication of bioplastic using cotton waste generated from Sri Lankan apparel industries 
    Pabasara, W.G.A.; Madushika, A.R.; Madushika, J.W.A. (Faculty of Science, University of Ruhuna, Matara, Sri Lanka, 2023-01-18)
    The apparel sector is the foremost contributor to the Sri Lankan economy. A significant amount of cotton waste is generated during different processing steps of the apparel industry which has posed a severe environmental ...
  • A modified mathematical model for diabetic population dynamics with optimal control strategies 
    Madhushika, T.D.T.; Somathilake, L.W.; Fernando, M.C.S. (Faculty of Science, University of Ruhuna, Matara, Sri Lanka, 2023-01-18)
    Diabetes is a chronic disease due to problems with the insulin hormone. Although diabetes cannot be cured, it can be managed with the right medications, proper exercise, and a diet low in carbohydrates and sugar. Multiple ...
  • Mapping active stars in open clusters of the Milky Way galaxy - A preliminary study 
    Karunaratne, V.G.S.I.; Prasadh, K.V.S.; Mahanama, G.D.K. (Faculty of Science, University of Ruhuna, Matara, Sri Lanka, 2023-01-18)
    Precise mapping of star-forming regions in galaxies is essential to understand the formation of galaxies. Stars that belong to O and B spectral types are considered hot young stars and can be found in active star-forming ...
  • Green synthesis of zero valent iron particles using Coffea arabica 
    Gaminda, K.A.P.; Abeysinghe, D.T.; Jayasinghe, C.D.; Senthilnithy, R. (Faculty of Science, University of Ruhuna, Matara, Sri Lanka, 2023-01-18)
    Zero valent iron particles (ZVIPs) have received extensive attention due to their remarkable activity and effectiveness in groundwater treatment and site remediation. Green synthesis of metal materials using plant extracts ...
  • Clustering of Financial Development Indices using AGNES and AGNES-PCA algorithms 
    Hulangamuwa, R.R.W.B.M.K.B.; Premachandra, P.K.; Dissanayake, R.B.N. (Faculty of Science, University of Ruhuna, Matara, Sri Lanka, 2023-01-18)
    Global financial indices play a prominent role in the prior identification of future economic growth and shrinking trends, developing financial strategies, and reviewing financial and economic policies. Annual financial ...
  • Some topological indices of banana tree graphs 
    Perera, K.K.K.R. (Faculty of Science, University of Ruhuna, Matara, Sri Lanka, 2023-01-18)
    A molecular graph is a simple graph whose vertices correspond to the atoms and the edges correspond to the bonds of some molecule. Chemical graph theory is a branch of mathematical chemistry that plays a vital role in ...
  • Odd Prime Labeling of the Irregular Snake Graphs 
    Indunil, W.K.M.; Perera, A.A.I.; Dhananjaya, K.D.E.; De Silva, K.H.C.; Bandara, D.M.A.K. (Faculty of Science, University of Ruhuna, Matara, Sri Lanka, 2023-01-18)
    Graph labeling is one of the most prominent research areas in Graph theory. The history of graph labeling can be traced back to the 1960s. There are numerous graph labeling techniques such as graceful labeling, radio ...
  • The genus of maximal embedding of the generalized Petersen graph, 𝑮𝑷 (𝒏, 𝒌) for the cases 𝒌 = 𝟏, 𝟐 
    Caldera, P.A.D.S.P.; Almeida, S.V.A.; Wijesiri, G.S. (Faculty of Science, University of Ruhuna, Matara, Sri Lanka, 2023-01-18)
    Please find the attached document for the content of the Abstract.
  • Analysis of survivability, trends, and status of sea turtle species found in Sri Lanka 
    Kankanamge, L.H.; Premarathne, L.P.N.D.; Perera, H.A.C.C.; Perera, K.D.H.; Zoysa, C.D.D. (Faculty of Science, University of Ruhuna, Matara, Sri Lanka, 2023-01-18)
    Five of the seven living sea turtle species are reported in Sri Lanka. The main objective of this study is to investigate the impact of decreasing the number of sea turtle inhabitants in Sri Lanka due to the rapid growth ...
  • Swimming performance prediction of elite swimmers 
    Herath, K.A.N.C.; Premachandra, P.K.; Dissanayake, R.B.N. (Faculty of Science, University of Ruhuna, Matara, Sri Lanka, 2023-01-18)
    As a result of technological advances, there is an abundance of game performance data available in several sports. Accordingly, performance prediction models also have become increasingly popular in sports science. These ...
  • An integer linear programming model in university examination timetable scheduling: a case study at the university of Ruhuna 
    Hirunika, K.A.H.; Samarathunga, D.M. (Faculty of Science, University of Ruhuna, Matara, Sri Lanka, 2023-01-18)
    In this study, a two-phase procedure that consists of integer linear programming models is developed for a case study in the university examination timetabling problem. Educational timetable scheduling problems are ...
  • A mathematical model for annual transfers of officers in combined services: An application of assignment problem 
    Soysa, W.R.G.; Samarathunga, D.M. (Faculty of Science, University of Ruhuna, Matara, Sri Lanka, 2023-01-18)
    In this study, we develop a model for automating annual transfers of officers in combined services. Annual transfers are a yearly based process conducted by the Ministry of Public Administration, Home Affairs, Provincial ...
  • A new algorithm for finding the basic feasible solution for bottleneck transportation problem 
    Ekanayake, E.M.D.B.; Ekanayake, E.M.U.S.B. (Faculty of Science, University of Ruhuna, Matara, Sri Lanka, 2023-01-18)
    Transportation problems are a common part of the category of linear programming problems. The cost of transportation is typically the basis on which the transportation problem is considered. But it is not enough to consider ...
  • Off-line signature verification by using proper orthogonal decomposition 
    Subawickrama, H.D.A.W.; Nishantha, S.A.A.; Mohamed, M.A.M.; Udagedara, U.G.I.G.K. (Faculty of Science, University of Ruhuna, Matara, Sri Lanka, 2023-01-18)
    A signature is a legally accepted key to use in document authentication and personal verification. Especially, in the fields such as banking, insurance and document management. Many verification methods have been used ...
  • A novel procedure for identifying an initial feasible solution to the transportation problem 
    Niluminda, K.P.O.; Ekanayake, E.M.U.S.B. (Faculty of Science, University of Ruhuna, Matara, Sri Lanka, 2023-01-18)
    The problem with transportation is figuring out how much has to be carried from each source to each destination to maintain the total cost of transportation as minimal as possible while still satisfying supply and demand ...
  • A new highly accurate fourth-order approximation for Fisher equation 
    Fernandopulle, C.T.; Gunarathna, W.A.; Mohamed, M.A.M. (Faculty of Science, University of Ruhuna, Matara, Sri Lanka, 2023-01-18)
    Fisher Equation (FE) is a nonlinear partial differential equation which is used to model many physical systems involving effects of both linear diffusions and nonlinear reactions. FE arises in numerous applications ...
  • Modelling non-linear exchange rate data in Sri Lanka that exhibit disturbed trends over time 
    Wickramasinghe, W.T.C.M.; Thilan, A.W.L.P. (Faculty of Science, University of Ruhuna, Matara, Sri Lanka, 2023-01-18)
    Most free market economies worldwide depend heavily on demand and supply, which is influenced by exchange rates. As a developing country, Sri Lanka should emphasise exchange rates more than other factors to maintain its ...
  • Identifying the students’ satisfaction of online learning activities using the factor analysis: A case study 
    Dilshani, S.D.M.; Hansani, K.G.P. (Faculty of Science, University of Ruhuna, Matara, Sri Lanka, 2023-01-18)
    Education is one of the sectors which mostly effected due to the current pandemic situation. In this context, online learning contributed a lot for students to continue their education. Therefore, the purpose of this ...
  • Parametric efficient portfolio rebalancing incorporating transaction costs 
    Vidumali, M.W.M.L.; Nishantha, S.A.A.; Udagedara, U.G.I.G.K. (Faculty of Science, University of Ruhuna, Matara, Sri Lanka, 2023-01-18)
    The purpose of this study is to choose an efficient portfolio and rebalance it with transaction costs to enable account holders who desire to invest in the financial markets to achieve their goals in the most convenient ...

Search DSpace


Browse

My Account