Research Publications: Recent submissions

  • Graph representation of tonal modulation 
    Chamathka, W. B. M. R.; Lanel, G. H. J. (Faculty of Applied Sciences, South Eastern University of Sri Lanka, Sammanthurai., 2024-11-06)
    This study approaches music theory from a graph theory perspective. Tonal Modulation, the musical process of changing the key, can be represented by a simple graph on the musical keys. This graph is called the tonal ...
  • The novel group chain acceptance sampling plan (GChSP-1) for generalized exponential distribution using first quartile 
    Kumari, D. A. T. M.; Haalisha, M. A. (Faculty of Applied Sciences, South Eastern University of Sri Lanka, Sammanthurai., 2024-11-06)
    Truncated life testing is used in attribute acceptance sampling, to determine the lifetime of items. Although the Single Sampling Plan is widely used, it has two shortcomings: if the acceptance number is zero or one, ...
  • Time series approach for modeling and forecasting electricity demand in Ampara District Sri Lanka 
    Sumanasena, L. T. P.; Haalisha, M. A. (Faculty of Applied Sciences, South Eastern University of Sri Lanka, Sammanthurai., 2024-11-06)
    Truncated Electricity is an essential resource for industry, transportation, and communication; thus, it is vital to understand the patterns of electricity usage for the well-being of society and economic growth. A ...
  • Time series approach for modeling and forecasting the contribution of hydroelectricity generation in Sri Lanka 
    Thayasivam, U.; Dayarathne, K. P. N. S. (Faculty of Applied Sciences, South Eastern University of Sri Lanka, Sammanthurai., 2024-11-06)
    Hydroelectricity generation plays a major role in Sri Lanka's power generation. An accurate forecast of the contribution of hydroelectricity to national power generation would help to reduce vulnerability of power ...
  • Sustainable vendor managed inventory model with integrated environmental cost consideration 
    Hisam, M. S. M. (Faculty of Applied Sciences, South Eastern University of Sri Lanka, Sammanthurai., 2024-11-06)
    management, enabling suppliers to oversee inventory levels and streamline replenishment, thereby enhancing operational efficiency. With growing emphasis on environmental sustainability, this research extends the ...
  • A novel method for finding optimal solution to transportation problems 
    Mushfiqa, M. B. F. I.; Yogeswary, R. (Faculty of Applied Sciences, South Eastern University of Sri Lanka, Sammanthurai., 2024-11-06)
    The transportation problem is a special type of linear programming problem and it is a critical optimization issue encountered in numerous industries, including logistics, supply chain management, manufacturing, and ...
  • Exact relativistic charged stellar models with problems in linear programming 
    Moulis, K.; Komathiraj, K. (Faculty of Applied Sciences, South Eastern University of Sri Lanka, Sammanthurai., 2024-11-06)
    In this work, we introduce a formal framework to derive interior solutions for the Einstein Maxwell system, describing the configuration of a relativistic charged fluid sphere within the context of spherically symmetric ...
  • New effective method for solving assignment problems in linear programming 
    Sino, A. M. F. S.; Yogeswary, R. (Faculty of Applied Sciences, South Eastern University of Sri Lanka, Sammanthurai., 2024-11-06)
    The Assignment problem represents a specific type of linear programming transportation problem. The goal is to allocate a specific number of resources to an equal number of activities while minimizing costs or maximizing ...
  • Model of compact star via hypergeometric differential equation 
    Nusha, M. I. F.; Komathiraj, K. (Faculty of Applied Sciences, South Eastern University of Sri Lanka, Sammanthurai., 2024-11-06)
    In this research, for a static, spherically symmetric, anisotropic and charged distribution of matter, we present a new class of exact solutions to the Einstein-Maxwell system. This is achieved by assuming specific ...
  • Bayesian optimization in Gaussian process regression for accurate air quality prediction. 
    Karlavi, M. M.; Chatrabgoun, O. (Faculty of Applied Sciences, South Eastern University of Sri Lanka, Sammanthurai., 2024-11-06)
    Air pollution, especially nitrogen dioxide (NO₂), poses significant risks to public health and environmental quality. Traditional statistical models for predicting NO₂ levels often fail to capture the complex, nonlinear ...
  • Graph theory approaches on movie recommendation system 
    Divyanjalee, K. A. S.; Lanel, G. H. J. (Faculty of Applied Sciences, South Eastern University of Sri Lanka, Sammanthurai., 2024-11-06)
    This study presents a comprehensive evaluation of a movie recommendation system utilizing three graph theory approaches: Genre-based correlation approach, User-movie ratings approach, and Genre distribution using ...
  • Geometric matrices and their properties 
    Kapurubandara, R. S. M.; Kumara, K. K. W. A. S. (Faculty of Applied Sciences, South Eastern University of Sri Lanka, Sammanthurai., 2024-11-06)
    Geometric Calculus has mostly been used in analysis, focusing less on linear algebra. In this paper we defined the fundamental operations, geometric addition (G-addition) and geometric multiplication (G-multiplication). ...
  • Review on the adomain decomposition method and collocation method for solving fractional differential equations 
    Fasmie, N. M.; Fajila, M. N. F. (Faculty of Applied Sciences, South Eastern University of Sri Lanka, Sammanthurai., 2024-11-06)
    Numerous real-life problems involving fractional calculus are widely used in different branches of mathematical physics, engineering science, etc. Solving Fractional Differential Equations (FDEs) is an active field of ...
  • Modeling tea harvest in a Sri Lankan estate using Lagrange’s interpolation method 
    Rathnayaka a, R. M. N. S.; Faham, M. A. A. M. (Faculty of Applied Sciences, South Eastern University of Sri Lanka, Sammanthurai., 2024-11-06)
    Precise tea harvest forecasting is essential to the effective operation of Sri Lanka's tea estates since it allows for the best possible allocation of resources and productivity. This paper presents a novel method for ...
  • Contra-harmonic index and polynomial of nanotubes and Nanotorus 
    Gunawardhana, D. C.; Lanel, G. H. J. (Faculty of Applied Sciences, South Eastern University of Sri Lanka, Sammanthurai., 2024-11-06)
    A topological index is a numerical value that characterizes the topology of a graph. Topological indices of molecular graphs are crucial in Chemical Graph Theory and can be utilized to examine the chemical properties ...
  • Modeling price variation of tea products in Sri Lankan estate: a lagrange interpolation approach 
    Indrawansha, N. G. G. R. K.; Faham, M. A. A. M. (Faculty of Applied Sciences, South Eastern University of Sri Lanka, Sammanthurai., 2024-11-06)
    Lagrange Interpolation Approach" develops a mathematical model to analyze the factors influencing tea price fluctuations in Sri Lanka. It uses Lagrange interpolation to create a polynomial that accurately represents ...
  • Comparison of fish species diversity in two stream segments within an oil palm plantation in Southern Sri Lanka 
    Samarasinghe, S. V. C. L.; Fernando, I. A. A. M.; Fernando, B. V. P.; Jayapali, U.; Karawita, H. (Faculty of Applied Sciences, South Eastern University of Sri Lanka, Sammanthurai., 2024-11-06)
    The rapid expansion of oil palm plantations has raised concerns about the potential ecological impact on aquatic biodiversity, particularly in tropical regions. Streams within these plantations often undergo alterations ...
  • Threats to the Sri Lankan leopard: an analysis of mortality data 
    Fernando, B. V. P.; Karawita, K. V. D. H. R.; Kumara, P. H. S. C.; Jayapali, U.; Madhumadhawa, R. C. (Faculty of Applied Sciences, South Eastern University of Sri Lanka, Sammanthurai., 2024-11-06)
    The Sri Lankan Leopard (Panthera pardus kotiya), an apex predator endemic to Sri Lanka, is under increasing threat from anthropogenic activities, particularly near human settlements. As a vulnerable species, the need to ...
  • Study on phytoplankton abundance and diversity in relation to reservoir water level and water quality: a study in Magalla reservoir in Sri Lanka 
    Abeysinghe, A. M. P. M.; Perera, H. A. C. C.; Hewageegana, N.; Samaranayake, D. A. G. G. S. (Faculty of Applied Sciences, South Eastern University of Sri Lanka, Sammanthurai., 2024-11-06)
    The study was carried out in the Magalla freshwater reservoir located in Nikaweratiya, Sri Lanka. The objective was to determine how the water level (m) and water quality affect the abundance (individuals/L) and diversity ...
  • A study on manufacturing a sustainable product using coconut shells – special reference to Boralesgamuwa area 
    Dias, R. A. (Faculty of Applied Sciences, South Eastern University of Sri Lanka, Sammanthurai., 2024-11-06)
    Sustainable products are those that have positive advantages on environmental, economy and society through the entire product lifecycle Coconut is a seed or a fruit which comes from coconut tree under the palm family tree ...

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