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Browsing 11th Annual Science Research Session - FAS by Submit Date

Browsing 11th Annual Science Research Session - FAS by Submit Date

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  • Numerical solution and stability analysis of one-dimensional heat equation 
    Zathiha, M. M.; Faham, M. A. A. M. (Faculty of Applied Sciences, South Eastern University of Sri Lanka, Sammanthurai., 2022-11-15)
    In a variety of scientific domains, the heat equation has many fundamental importance. Heat is a type of energy that can be found in any substance. The physical phenomena of the one-dimensional heat equation were ...
  • An analytical study on radical theory in rings - a review 
    Arulnandhy, S.; Liyanage, M. (Faculty of Applied Sciences, South Eastern University of Sri Lanka, Sammanthurai., 2022-11-15)
    Radical theory in rings is regarded as a major theoretical concept that specifies certain classical structure theorems for rings, enhancing profound understanding of the key aspects of ring theory. Radical theory has ...
  • Anisotropic charged stellar models via Bessel differential equation 
    Subasinghe, H. P. I.; Komathiraj, K. (Faculty of Applied Sciences, South Eastern University of Sri Lanka, Sammanthurai., 2022-11-15)
    Several new families of exact solution to the Einstein-Maxwell system of differential equations for a spherically symmetric relativistic fluid sphere matched to the exterior Reissner–Nordström space–time are found for ...
  • Preliminary evaluation of toxicity of a binary mixture of cadmium and chromium on zebrafish embryo 
    Thomas, I. B. K.; Abeysinghe, D. T.; Senthilnithy, R.; Chanika, D.Jayasinghe (Faculty of Applied Sciences, South Eastern University of Sri Lanka, Sammanthurai, 2022-11-15)
    Heavy metals like cadmium (Cd) and chromium (Cr) exert toxic effects on aquatic vertebrates such as fish and amphibians. The present study employed a zebrafish embryo toxicity model to detect the toxic effects of a binary ...
  • Screening for cellulose utilizing efficiency of bacteria isolated from different natural sources by enrichment with different lignocellulose substrates 
    Dissanayake, R. M. G. K.; Rizvi, E. M. J. M. (Faculty of Applied Sciences, South Eastern University of Sri Lanka, Sammanthurai, 2022-11-15)
    Lignocellulose is a promising feedstock to produce biofuels and other biobased products and it is the most abundant sustainable and economical alternative to fossil resources. It is the sole source of some of these ...
  • Enhancing salt tolerance ability of selected rice varieties using ascorbic acid and nicotinamide 
    Pramodika, S. M. L.; Safeena, M. I. S. (Enhancing salt tolerance ability of selected rice varieties using ascorbic acid and nicotinamide, 2022-11-15)
    Total agricultural land of the globe becomes insufficient due to the progressive nature of primary and secondary salinity. High salt content in the irrigation water or soil is a serious restriction factor to the cultivation ...
  • Absolute stability of runge-kutta method 
    Komathiraj, K.; Marasinghe, M. M. J. P. (Faculty of Applied Sciences, South Eastern University of Sri Lanka, Sammanthurai., 2022-11-15)
    The Runge-Kutta method is a popular method for solving initial value problem. It is most accurate and stable method. It arise when Leonhard Euler have made improvements on Euler method to produce Improved Euler method. ...
  • Linear stability analysis of more general linear iteration scheme in the implementation of implicit runge kutta methods 
    Kajanthan, S. (Faculty of Applied Sciences, South Eastern University of Sri Lanka, Sammanthurai., 2022-11-15)
    more general linear iterative scheme solves non-linear equations arising in the implementation of implicit Runge-Kutta methods proposed by Cooper and Butcher is of the form where B and S are real non-singular matrices ...
  • Optimal signal timing for an oversaturated arterial intersection at road networks 
    Yogeswary, Raviraj; Kumara, R. A. D. S. M. U. (Faculty of Applied Sciences, South Eastern University of Sri Lanka, Sammanthurai., 2022-11-15)
    Traffic congestion occurs frequently at downtown intersections during rush hours, at road construction zones as well as at accident sites. Under such circumstances, traffic flow exceeds intersection capacity causing ...
  • Exact relativistic stellar models via Hypergeometric differential equation 
    Wickramarathna, H. N. P.; Komathiraj, K. (Faculty of Applied Sciences, South Eastern University of Sri Lanka, Sammanthurai., 2022-11-15)
    We find new classes of exact solutions to the Einstein-Maxwell system of equations for a charged and anisotropic sphere with a particular choice of the electric field intensity, anisotropic factor and one of the gravitational ...
  • A sir model for analyzing the impact of covid-19 vaccinations in Sri Lanka 
    Fathima Maheesha, A. J.; Faham, M. A .A. M. (Faculty of Applied Sciences, South Eastern University of Sri Lanka, Sammanthurai., 2022-11-15)
    The world has been gripped by Corona pandemic since 2019. In Sri Lanka, the first case of COVID-19 was reported late January 2020 and that was a Chinese nationalist the first local case was identified in the second week ...
  • A Chebyshev collocation method for solving ordinary linear differential equations with variable coefficients 
    Mohamed Althaf, U. L.; Faham, M. A. A. M (Faculty of Applied Sciences, South Eastern University of Sri Lanka, Sammanthurai., 2022-11-15)
    Differential equations are frequently used to describe continuous-time dynamical system. Not all differential equations can be solved analytically, so several techniques have been developed to find approximate solutions. ...
  • Development of a seawater intrusion model for the Kalpitiya coastal aquifer in Sri Lanka 
    Sudesh, K. H. M.; Samaraweera, M. D. S.; Attanayake, A. M. A. N. B. (Faculty of Applied Sciences, South Eastern University of Sri Lanka, Sammanthurai., 2022-11-15)
    Seawater intrusion is the influx of saline water into freshwater aquifers leading to groundwater quality degradation. The Kalpitiya Coastal Aquifer (KCA) of Sri Lankan is a limestone aquifer and its’ adjacent groundwater ...
  • Line integrals through higher degree Taylor polynomial approximation 
    Abdul Rauf, M. A. C.; Faham, M. A. A. M. (Faculty of Applied Sciences, South Eastern University of Sri Lanka, Sammanthurai., 2022-11-15)
    Integration is one of the basic operation in mathematical calculus. It occurs in almost all physical situations where the variable is continuous function of one or more continuous independent variables. When the function ...
  • Fourth order perturbed Heisenberg Hamiltonian of bcc structured ferromagnetic thin films with three spin layers 
    Farhan, M. S. M.; Samarasekara, P. (Faculty of Applied Sciences, South Eastern University of Sri Lanka, Sammanthurai., 2022-11-15)
    The solution of fourth order perturbed Heisenberg Hamiltonian of bcc structured ferromagnetic ultra-thin films with three spin layers with all seven magnetic energy parameters were investigated. All the magnetic energy ...
  • Development of Fe@MGO nanoparticles for enhancing the adsorption of methylene blue dye 
    Gurunanthanan, V.; Perera, H. C. S.; Dassanayake, B. S.; Gunathilake, S. S. (Faculty of Applied Sciences, South Eastern University of Sri Lanka, Sammanthurai., 2022-11-15)
    Industrial dye effluents are a significant concern and require to be treated before being discharged into the environment. Magnesium oxide (MgO) has been known as an excellent adsorbent for a variety of environmentally ...
  • NDVI based land cover changes analysis of five villus in Wilpattu National Park from 2019 to 2022 
    Rajapaksha, R. D. T.; Dahanayaka, D. D. G. L.; Padmalal, U. K. G. K.; Wijeyaratne, W. M. D. N. (Faculty of Applied Sciences, South Eastern University of Sri Lanka, Sammanthurai., 2022-11-15)
    National parks could be considered the heart of a country’s bio-network. This study attempts to identify and analyze the changes in the water area and vegetation in and around selected Villus in the Wilpattu national ...
  • Improving the performance of sb2s3 solar cells based on the effect of concentrations of sb2s3 precursor 
    Farhana, M. A.; Bandara, J. (Faculty of Applied Sciences, South Eastern University of Sri Lanka, Sammanthurai., 2022-11-15)
    In solid-state solar cells, binary structure Sb2S3 semiconductor material is much more attractive as a light-harvesting active layer due to its desirable properties in solar cell applications. Since the precursor solution ...
  • Bird counts in California’s central valley Wetlands using object-based image analysis 
    Fisher, J.; Marlin, K.; Pickering, A.; Scaroni, L.; Weisgrau, A. S.; Kahara, S. N.; Hernandez, K. B.; Paredes, E. J.; Lamping, J. E.; Nijamir, K.; Manamperi, J. P. J.; Kuruppuarachchi, K. A. J. M.; Madurapperuma, B. D. (Faculty of Applied Sciences, South Eastern University of Sri Lanka, Sammanthurai., 2022-11-15)
    Recent advancements in small unmanned aerial systems (sUAS) have proved useful in monitoring and counting aquatic birds in wetlands flying over flocks without disturbing them. The objective of the study is to use a ...
  • Treating household kitchen wastewater using constructed Wetland suitable for the rural area of Sri Lanka 
    Sutharsana, M. E.; Bandara, S. M. M. R. L. K. (Faculty of Applied Sciences, South Eastern University of Sri Lanka, Sammanthurai., 2022-11-15)
    Treating the wastewater from the kitchen before discharging it into the environment is vital in preserving natural resources such as groundwater, surface water, soil, etc. However, in most cases, kitchen wastewater is ...

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