Undergraduate Research Symposium: Recent submissions

  • Health issues from the exposure of the radiation from Telecommunication base stations: A case study from Ampara, Sri Lanka 
    Priyanka, U.; Pathmathas, T. (University of Jaffna, 2022)
    Every current technology is having beneficial positive as well as undesirable deleterious effects. This research was carried out to emphasize the health impacts on human beings due to electromagnetic radiation radiated ...
  • Lead-free, low-cost radiation shielding material for clinical electron beam radiotherapy 
    Jayamaha, J. M. D. D. N.; Pathmathas, T.; Ramalingam, A. (University of Jaffna, 2022)
    Clothing of the conventional radiation shielding protects patients and medical personnel from unnecessary radiation exposures constructed from lead-soaked sheet materials, which is a source of environmental pollution. ...
  • Optical simulation of hemispherical silicon nanostructure for silicon solar cells 
    Vibra, G.; Sivasubramaniam, S. (University of Jaffna, 2022)
    Silicon, being an indirect band gap material, has low optical absorption coefficient especially at the energies near the band gap. Hence, the efficient light management scheme is needed to trap the light inside the ...
  • Optical simulation of one-dimensional silicon gratings for silicon solar cells 
    Venushiya, A.; Senthuran, S. (University of Jaffna, 2022)
    Minimizing the optical losses is very crucial in achieving higher efficiencies is silicon solar cells. More than 30% of the incident light is lost via reflection in planner silicon solar cells and this is more pronounced ...
  • Antimicrobial potentials of mangrove plants Avicennia marina and Rhizophora mucronata against selected fungal and bacterial species. 
    Rajasiri, A.M.P.; Krishnapillai, N.; Sathyaruban, S. (University of Jaffna, 2022)
    Antimicrobial potential is a common tool to assess medicinal value of the plant. Mangrove plants have several bioactive compounds and considered as medicinal plants. Thus, this study was aimed to investigate the ...
  • Antifungal activity of Zingiber officinale against selected fungi 
    Lakshani, B.H.M.H.; Ravimannan, N. (University of Jaffna, 2022)
    The use of plants for the preparation of medicines has been increased in the world due to the presence of antimicrobial agents in the plants. Antimicrobial agent is a compound which selectively destroys or inhibits the ...
  • Sintering properties and development of ternary ZnAl2O3 phase in Al2O3 - ZnO composite ceramics 
    Sriyananda, I.B.P.B.; Thanihaichelvan, M. (University of Jaffna, 2021)
    Zinc doped aluminium oxide (ZnAl2O3) is a wide bandgap semiconducting material with optical transparency. The wideband gap of 3.6 eV makes it as an interesting material in several applications like gas and chemical sensors ...
  • Suitable shielding material for external beam therapy 
    Dissanayake, D.M.B.Y.; Pathmathas, T.; Ramalingam, A. (University of Jaffna, 2021)
    In radiological procedures radiation shielding apparel must protect the patients and medical personnel from unnecessary exposures. Primarily conventional radiation shielding apparel is constructed from lead impregnated ...
  • Sound level measurement and the setback distance of the wind turbine 
    Rajapaksha, M.P.D.S.; Thevakaran, A. (University of Jaffna, 2021)
    Harnessing energy from the wind is the sustainable alternative method to produce electricity. However, while having positive environmental impacts such as reduced carbon emission, environmental pollution, and water ...
  • Smart cap as an electronic travel aid for visually impaired person 
    Premadasa, D.K.M.S.A.; Dissanayaka, D.M.A.S.; Wimalarathne, A.W.G.N.M.; Hemachandra, W.G.S.M.; Gunawardhane, W.A.T.N.; Kodikara, M.M.P.S.; Loheeswaran, S. (University of Jaffna, 2021)
    This research aimed to develop an ultrasonic sensor based smart cap as an electronic travel aid to improve the safe self-movement of the visually impaired persons. This smart cap provides the audible and mechanical vibration ...
  • Sintering properties of ZnO-TiO2 composite ceramics 
    Kopiha, V.; Sutharsini, U. (University of Jaffna, 2021)
    Among various semiconductor oxides, ZnO and TiO2 composite have been used wide variety of applications such as solar cells, varistors, and sensors. In this work effect of sintering temperature and sintering time on ZnO - ...
  • Sintering properties of sputtered ZnO Thin Films 
    Kirusanthy, S.; Sutharsini, U. (University of Jaffna, 2021)
    Zinc oxide (ZnO) thin films have performed as an attractive material for numerous applications in piezoelectricity, solar cells, biomedical and sensing. In this work, sintering properties of sputter coated Zinc oxide thin ...
  • Rice husk ash as partial substitute for sand in cement bricks 
    Anupama, G.G.; Nandasiri, K.P.S.D.; Thanihaichelvan, M. (University of Jaffna, 2021)
    Cost of the construction materials are increasing due to rapid growth of industry and demand. As a result, waste utilization has been one of the most vital aspects in the construction industry towards sustainability [1,2]. ...
  • Production of biodiesel from locally available Pumpkin seeds: A comparison with coconut oil 
    Jayathilaka, W. D. D. R; Yohi, S. (University of Jaffna, 2021)
    Petroleum based economy is suffering from a series of problems like enhanced greenhouse effect and global warming. Burning of fossil fuel causes accumulation of the greenhouse gases in the environment that leads to enhanced ...
  • Piezoelectric buzzers for energy harvesting 
    Vishvarooban, V.; Rishanthan, K.M.T.M; Leelananda, B.H.; Shanika, D.I.; Madushan, W.G.P.C.; Abayarathna, V.; Kanan, H.S.; Paranthaman, S.; Loheeswaran, S. (University of Jaffna, 2021)
    The energy generating devices are capable of capturing environmental energy and supplanting the battery in a stand-alone module or working alone with the battery to extend substantially its life. Piezo electric and ...
  • Mutations observed in selected SARS-CoV-2 isolates 
    Kugathasan, D.; Aruldchelvan, K.; Jeyaseelan, T.C.; Emmanuel, C.J. (University of Jaffna, 2021)
    Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is a single-stranded positive RNA virus. The virus genome is ~ 29.9 Kb in size and comprises 14 open reading frames, which encodes for 27 different proteins. The ...
  • Moderation of indoor humidity and temperature using automated motorized window opening and closing system 
    Hewage, G.N.; Wickramaarachchi, A.K.; Arulkumaran, P.; Priyanka, Y.; Cassim, C.D.; Rodrigo, K.; Thenmolie; Loheeswaran, S. (University of Jaffna, 2021)
    Thermal comfort and indoor air quality are essential for living in a healthy environment. In this work, based on the assessment of comfortable environmental conditions such as an in-door temperature and humidity in a ...
  • Isolation and identification of Bacillus species present in the Panchagavya preparations 
    Donaldson, E.; Emmanuel, C.J. (University of Jaffna, 2021)
    Panchagavya has been popularly used in organic farming to promote plant growth and control various pests and diseases. During the preparation of Panchagavya, a mixture of five cow products and sugar sources such as jaggery, ...
  • Inspection of thermal conductivity of natural fiber reinforced composites (NFCs) 
    Kulasooriya, K.A.C.P.; Amarathunga, H.M.N.M.; Perera, W.K.S.F.R; Thanihaichelvan, T. (University of Jaffna, 2021)
    chemical properties, which exhibit enhanced properties than the constituent materials. Thermal insulation composite materials, especially those reinforced with synthetic fibers releases huge amount of CO2 to the environment ...
  • Hydrothermal ageing study on two step sintered 3Y-TZP ceramic 
    Praveena, S.; Sutharsini, U. (University of Jaffna, 2021)
    In this study, Hydrothermal ageing resistance of two step sintered 3 mol. % Yittria stabilized tetragonal zirconia polycrystalline (3Y-TZP) ceramic was analysed. 3Y-TZP ceramic powder was die pressed followed by cold ...