Science: Recent submissions

  • Designing a high-performance parametric speaker system: simulation and Optimization 
    Gurusinghe, T. N.; Seneviratne, J. A.; Ranaweera, A. L. A. K.; Kalingamudali, S. R. D. (Faculty of Science, University of Kelaniya Sri Lanka, 2023)
    The parametric speaker is designed to direct omnidirectional sound waves towards a specific target. Over the past two decades, numerous research studies have been conducted to optimize parametric speaker systems, with a ...
  • Estimating COVID-19 prevalence in Sri Lanka 
    Erandi, J. D. T.; Liyanage, U. P.; Gunawardana, A. (Faculty of Science, University of Kelaniya Sri Lanka, 2023)
    Throughout the ages, man has had to face numerous crises and diseases. Among them, the COVID-19 virus can be considered as one of the most fatal diseases ever, and it has caused significant damage to the entire world. ...
  • Estimating the optimum plot size for coconut field experiment 
    Fernando, K. M. T. L.; Waidyarathne, K. P.; Jayasundara, D. D. M. (Faculty of Science, University of Kelaniya Sri Lanka, 2023)
    Coconut stands as a prominent plantation crop in Sri Lanka, contributing to around 12% of the country's total agricultural output, as reported by the Sri Lanka Export Development Board (2021). A significant focus should ...
  • Computational assessment of novel derivatives of Epigallocatechin gallate as potential anti-Tuberculosis agents 
    Perera, K. P. M.; Dahanayake, J. N. (Faculty of Science, University of Kelaniya Sri Lanka, 2023)
    Tuberculosis (TB) is a highly contagious bacterial infection caused by Mycobacterium tuberculosis. This research focuses on the computational assessment of novel derivatives of Epigallocatechin Gallate (EGCG) as potential ...
  • Computational investigation of the effect of natural derivatives of Curcumin as anti-Asthma drugs 
    Abeyrathne, N. G. D. S.; Dahanayake, J. N. (Faculty of Science, University of Kelaniya Sri Lanka, 2023)
    Asthma, a chronic respiratory disease, necessitates long-term control medications to manage symptoms and maintain stable control. However, the search for novel therapeutics with improved efficacy and reduced side effects ...
  • Mass and heat transfer of modified second-grade fluid flow through a porous media over a linearly stretching sheet 
    Fernando, L. M. N.; Karunathilaka, N. G. A. (Faculty of Science, University of Kelaniya Sri Lanka, 2023)
    In this research, we have developed a mathematical model to describe a boundary layer approximation of modified second-grade fluid flow over a linearly stretching sheet with mass and heat transfer in a porous medium. The ...
  • Taekwondo head guard and chest guard for training and scoring 
    Chethana, E. J. K. S.; Loshan, T. J.; Jayasumana, M. A. I. D.; Sandanayake, S. P. D.; Randeniarachchi, R. A. N. D.; Nandasiri, D. D. D. S.; Senevirathna, J. A.; Gunawardhana, K. B. D. H. (Faculty of Science, University of Kelaniya Sri Lanka, 2023)
    Taekwondo is a highly popular martial art and Olympic sport that has been rapidly gaining worldwide recognition. With its dynamic kicks, precise strikes, and intricate footwork, Taekwondo requires a scoring system that ...
  • Investigation of the elemental composition of sand along the eastern coastal region of Sri Lanka 
    Janani, A. (Faculty of Science, University of Kelaniya Sri Lanka, 2023)
    The eastern coastal region of Sri Lanka is abundant in valuable sand deposits. However, lack of knowledge regarding the elemental composition of this sand hinders its conversion into a wanted industrial raw material. This ...
  • Investigation of multi-functional metamaterial unit cell operating at SHX-X Band Frequencies 
    Saraph, A. K.; Ranaweera, A. L. A. K.; Jayathilaka, K. M. D. C; Senevirathne, J. A. (Faculty of Science, University of Kelaniya Sri Lanka, 2023)
    Metamaterials are man-made materials having unique and distinct properties which are not available in natural materials. In this study, a metamaterial unit cell is fabricated with a squarecircular- hexagonal split ring ...
  • Feasibility of piezoelectric based mechanical vibration detector 
    Sajjana, M. K.; Pemasiri, B. M. K. (Faculty of Science, University of Kelaniya Sri Lanka, 2023)
    Piezoelectric force sensors are widely used in various industries, including aerospace, automotive, and medical, due to their unique properties. These highly sensitive sensors can detect even the slightest changes in force ...
  • Viscous Dissipation and thermal radiation of Williamson fluid flow over an exponentially stretching sheet 
    Karunathilake, N. G. A.; Hansameenu, W. P. T.; Wijesiri, G. S. (Karunathilake N. G. A.; Hansameenu W. P. T.; Wijesiri G. S. (2023), Viscous Dissipation and thermal radiation of Williamson fluid flow over an exponentially stretching sheet, Proceedings of the International Conference on Applied and Pure Sciences (ICAPS 2023-Kelaniya) Volume 3, Faculty of Science, University of Kelaniya Sri Lanka. Page 78., 2023)
    This study investigates the viscous dissipation and thermal radiation of Williamson fluid flow over an exponentially stretching sheet. The analysis has been started with the governing equations of the fluid flow derived ...
  • Fabrication and characterization of electrodeposited nano structured copper oxide-based supercapacitors 
    Anjalika, B. R. L.; Jayathilaka, K. M. D. C.; Ranaweera, A. L. A. K.; Wijesundera, L. B. D. R. P.; Kalingamudali, S. R. D. (Faculty of Science, University of Kelaniya Sri Lanka, 2023)
    The increasing consumption of limited energy sources, primarily based on fossil fuels, and the resulting environmental issues, such as global warming and climate change, drive researchers to develop environmentally friendly ...
  • Development of a cost-effective real-time commuter counting system for public transportation in Sri Lanka 
    Premasiri, R. H. M. D.; Koralage, K. G. S. D.; Hasaranga, J. P. K.; Alawaththa, A. K. N. A.; Seneviratne, J. A.; Ranaweera, A. L. A. K. (Faculty of Science, University of Kelaniya Sri Lanka, 2023)
    The use of smart systems in public transportation is relatively new in the Sri Lankan context. This study introduces a cost-effective solution for accurately counting the number of bus passengers at any given time. Current ...
  • A statistical approach to assess faceted blue sapphire gemstones 
    Mahanama, K. R. T. S.; Chandrasekara, N. V.; Ranatunga, G. D. (Faculty of Science, University of Kelaniya Sri Lanka, 2023)
    The gem industry is a promising contributor to Sri Lankan economic development. The gemstone market prices are set by professional gem evaluators based on their tacit knowledge. Although the valuation of gemstones is complex ...
  • Development of a simple sol-gel based colorimetric sensor for the detection and quantification of Gallic acid 
    Perera, H. A. I.; Wanniarachchi, W. K. I. L.; Wanniarachchi, D. D. C. de S. (Faculty of Science, University of Kelaniya Sri Lanka, 2023)
    The rapid and visual detection of Gallic acid (GA) is of significant importance, broadening its applicability to multiple domains. The primary goal of this research is to develop a colorimetric detection method for identifying ...
  • Enhancing quasi solid-state dye-sensitized solar cell performance using mixedpolymer gel electrolytes: the influence of low and high molar-weight polymers 
    Rajakarunarathne, R. D. M. A. C. B.; Wickramasinghe, H. M. N.; Bandara, T. M. W. J. (Faculty of Science, University of Kelaniya Sri Lanka, 2023)
    Gel polymer electrolytes (GPEs) based quasi solid-state dye-sensitized solar cells (DSSCs) have attracted attention due to their relatively high chemical and physical stability, ionic conductivity, better mechanical ...
  • Photocurrent improvement in grape dye sensitized solar cells by in cooperation of electrodeposited Cu particles in TiO2 photoanode 
    Shakya, M. D. P. A.; Jayathilaka, K. M. D. C.; Wanninayake, W. T. M. P. K.; Kumara, R.; Siripala, W. P.; Wijesundera, R. P. (Faculty of Science, University of Kelaniya Sri Lanka, 2023)
    A worldwide effort is currently underway to address the world's energy crisis by finding sustainable energy alternatives. The Dye-Sensitized Solar Cell (DSSC) is a type of solar cell device that functions based on ...
  • Effect of pH on the morphology of chemical bath deposited ZnO nanowires 
    Jayathilaka, A. P. S. P.; Abeykoon, Y. K.; Dassanayake, B. S.; Dasanayake, N. L. (Faculty of Science, University of Kelaniya Sri Lanka, 2023)
    ZnO is a non-toxic chemical compound that forms nanostructures like nanoparticles, nanowires, nanotubes, and so on. Among these nanostructures, ZnO nanowires have shown the potential for use in applications like light-emitting ...
  • Investigating the ability to purify wastewater by using Activated Porous Carbon (APC) produced from waste surgical masks 
    Wellalage, D.K.; Bandara, L. R. A. K.; Dasanayake, N. L. (Faculty of Science, University of Kelaniya Sri Lanka, 2023)
    Since the early days of the year 2020, most people have been wearing face masks to protect themselves from COVID 19 pandemic. As a result of that, another environmental problem arises with waste face masks all over the ...

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