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Now showing items 1-20 of 45

Adsorption of Cadmium ion from aqueous solutions by stem and leaf of Parthenium hysterophorus

Yogenthiran, E.; Abiman, P. (University of Jaffna, 2021)

Cadmium is a toxic heavy metal causing risks for living organisms even at low levels of its presence. Poor treatment of Cd2+ from contaminated sources leads to high risks for human health causing health disorders like ...
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 ...
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 ...
Commiphora mukul derived natural resin-based biopolymer electrolytes for rechargeable sodium-ion batteries

Tennakoon, C.N.B; Jayamaha, J.H.T.B; Jathushan, V; Keppetiyawa, K.G.H.S; Vignarooban, K.; Sashikesh, G; Velauthamurty, K. (University of Jaffna, 2021)

Even though sodium-ion batteries (SIBs) are one of the important battery chemistries heavily investigated these days, a primary challenge for their commercial level production is the synthesis of suitable electrolytes with ...
Comparative and quantitative estimation of macronutrients in six different Banana varieties (Musa Spp) consumed in Jaffna

Jayawadhana, R. P. L. S; Rajkumar, G (University of Jaffna, 2021)

Banana, fruit of the genus Musa, one of the most important fruit crops in many developing countries in terms of per capita consumption. This research aims to compare the general nutrient composition of selected six different ...
Comparison of Li+ and Na+ alkali-cations on the ionic transport properties of solid-polymer electrolytes intended for secondary batteries

Dassanayake, D.H.K.T.; Jayamaha, J.H.T.B.; Jathushan, V.; Vignarooban, K. (University of Jaffna, 2022)

Battery chemistries beyond lithium-ion such as sodium-ion batteries (SIBs) are becoming popular these days due to the limited availability and high cost of lithium raw materials. Designing suitable electrolytes is of ...
Defect chemistry of α-Spodumene; an atomistic simulation-based study

Suthaharan, S.; Sukumar, R.; Iyngaran, P.; Kuganathan, N. (University of Jaffna, 2021)

Naturally occurring lithium rich α-Spodumene (α-LiAlSi2O6) is a technologically important mineral that has attracted considerable in rechargeable lithium ion batteries (LIBs), ceramics and polymer industries [1, 2]. The ...
Defects and dopants in Anorthite (CaAl2Si2O8)

Suthaharan, S.; Iyngaran, P.; Kuganathan, N (University of Jaffna, 2021)

Calcium aluminosilicate, CaAl2Si2O8, is a promising economically important ceramic material that has found applications in several areas, such as glass production and petrology [1-2]. Atomistic scale simulation techniques ...
Design and feasibility study of parabolic trough concentrated solar power water heater for domestic use in Sri Lanka

Kanayaka, E.M.D.M.; Senthuran, K.; Somajayan, D.P.; Piyasena, K.; Vignarooban, K.; Senthuran, A.; Thevakaran, A.; Ravirajan, P. (University of Jaffna, 2021)

Concentrated Solar Power (CSP) systems are becoming popular in recent days for electricity generation, especially in the United States and Spain. Parabolic trough CSP systems can also be designed as a water heater by fixing ...
Design and Improving the Mechanical performance of Dual axis Solar Tracker using LDR Sensors

Alfred Milroy, K.; Kirushiga, V.; Sulakkhana, L.N.; Gowsikan, K.; Roczan, A.H.; Wanigasooriya, W. A. D. C. J.; Kodikara, M. M. P. S.; Thenmolie, S.; Loheeswaran, S (University of Jaffna, 2021)

A solar tracking system which carries solar panels, maximizes the solar electricity production by moving panels to follow the sun throughout the day. In this work, a small solar tracking system was developed by using Arduino ...
Effect of ceria and yttria stabilizers on hydrothermal ageing resistance of two step sintered zirconia ceramics

Subasingha, G.B.S.; Ng, C.K.; Ramesh, S.; Sutharsini, U. (University of Jaffna, 2022)

Tetragonal zirconia exhibits excellent hardness and fracture toughness due to its transformation toughening mechanism. However, zirconia is susceptible to tetragonal to monoclinic phase transformation at low temperatures, ...
Effect of Nickel doping in P3HT hole transporting material on the performance of perovskite solar cells

Risendiralingam, R.; Uthayaraj, S.; Yohi, S.; Thanihaichelvan, M.; Velauthappillai, D.; Ravirajan, P. (University of Jaffna, 2021)

Perovskite solar cell (PSC) has intensively been focused on improving their efficiencies and stability for commercialisation. Various hole transporting materials (HTMs) have been reported in enhancing the performance of ...
Effect of two step sintering profile on hydrothermal ageing resistance of tetragonal zirconia ceramics

Nilogini, S.; Praveena, S.; Ng, C.K.; Ramesh, S.; Sutharsini, U. (University of Jaffna, 2022)

Tetragonal zirconia is known as ‘ceramic steel’ due to its excellent hardness and fracture toughness. However, at low temperatures (< 300 C) and in the presences of hydroxyls, tetragonal zirconia transforms into ...
Electrical conductivity study across the Carbon nanotube (CNT)-gold Schottky junction

Disagini, J.; Thanihaichelvan, M. (University of Jaffna, 2022)

In this work the electrical conduction across the CNT bundle gold Schottky junction under the influence of external electric field using a conductive atomic force microscope (c-AFM). The CNT bundles were fabricated by ...
Evaluating doses calculated using TRS 398 and TRS 277 protocols

Harindrinee, S.; Pathmathas, T.; Ramalingam, A. (University of Jaffna, 2021)

Protocols, considered as guidelines in Medical Physics, admit the safety measures and effective practices in diagnostic and therapeutic radiology. The changes of the beam calibration due to adaption of the TRS-398 protocol ...
Facile fabrication of nitrogen-doped Titanium dioxide-based dye-sensitized solar cells

Gurunanthanan, V.; Rajaramanan, T.; Velauthapillai, D.; Ravirajan, P.; Senthilnanthanan, M. (University of Jaffna, 2021)

Titanium dioxide (TiO2) is a commonly used semiconductor in Dye-Sensitized Solar cells (DSSCs) as it is inexpensive, abundant and innocuous to the environment. However, lack of response to the visible light and slow electron ...
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 ...
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 ...
Influence of post-annealing temperature on the properties of thermally evaporated CuI thin film

Gunasekara, M.S.S.; Thivakarasarma, T.; Dhayalan, V.; Ravirajan, P. (University of Jaffna, 2022)

Copper Iodide (CuI) has been widely used in various optoelectronic applications including solar cells, light-emitting diodes owing to the high hole mobility, high electrical conductivity, wide direct bandgap, high ...
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 ...

Now showing items 1-20 of 45

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