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16th Academic Session - 2019
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16th Academic Session - 2019: Recent submissions

Now showing items 41-60 of 62

An Analytical Model to Locate Emergency Services.

Seneviratne, S.W.; Wirasinghe, S.C. (University of Ruhuna, Matara, Sri Lanka., 2019-03-06)

Infrastructure facilities within a city are supposed to be located in such a way that they are central to the location of demand. Location-allocation problems consider how to locate these facillitieg that will, most ...
Development of Alternative Hydraulic Fluid Using Palm Oil.

Pathmasiri, T.K.K.S.; Perera, G.I.P.; Gallage, R (University of Ruhuna, Matara, Sri Lanka., 2019-03-06)

Hydraulic fluids transmit power to the moving parts of many machines. A superior hydraulic fluid should power transmit with minimum loss, lubricate the surfaces moving against each other and protect metal surfaces from ...
Analysis of the Dimensional Properties of "Samanala/Dingy" Boats Manufactured in Sri Lanka by Using DNV-GL Standards.

Ranjana, M.T.T.; Galappaththi, U.I.K.; Baduge, S.; Wimalsiri, W.K. (University of Ruhuna, Matara, Sri Lanka., 2019-03-06)

This paper is focused to evaluate the dimensional properties of "Samanala/ Dingy" boats manufacturing in Sri Lanka by using Det Norske Veritas (Norway) and Germanischer Lloyd (Germany) standards (DNV-GL). According to the ...
Effects of 2-methyl-4-chlorophynoxyacetic acid (MCP A) on Lemna valdiviana.

Weerakoon, H.P.A.T.; Jayalath, G.E.D.; Atapaththu, K.S.S.; Asanthi, H.B. (University of Ruhuna, Matara, Sri Lanka., 2019-03-06)

Aquatic macrophytes play an important role in the structure and functioning of aquatic ecosystem while facing an array of disturbances. Among those disturbances, exposure to agrochemical is significant due to intensive ...
A Preliminary Investigation on Potential Use of Cinnamon Outer Corky Layer as a Substrate for Pleurotus ostreatus (Oyster Mushroom) Cultivation.

Perera, P.C.D.; Bandara, K.M.T.S.; Wijeweera, A.A.; Wickramasinghe, W.M.R.H.; Kumara, K.L.W. (University of Ruhuna, Matara, Sri Lanka., 2019-03-06)

Agricultural wastes are used as a substrate to prepare media for the mushroom cultivation. Sawdust is popular among mushroom growers as a medium for cultivating mushrooms. However, the low availability of sawdust has become ...
Thermal Efficiency of Evacuated Tube Receivers in Steam Generation under Concentrated Solar Power.

Ranatunga, E.M.; Hettiarachchi, N.K.; Aberathne, M.K. (University of Ruhuna, Matara, Sri Lanka., 2019-03-06)

In this research the efficiency of evacuated tubes used in commercially available solar hot water systems under concentrated solar powe? has been estimated. The solar energy is readily available in nature, environmentally ...
Design, Fabrication and Test of Plano-Convex Lenses Using Locally Available Materials for Applications in Telescopes.

Sameera, M.K.T.M.; Thilakarathne, B.A.T.M.; Samararathna, K.G.; Alahakoon, A.G.P.D.; Amaradasa, H.D.S.; Perera, H.A.D.S.D.; Mahanama, G.D.K. (University of Ruhuna, Matara, Sri Lanka., 2019-03-06)

Astronomy can be considered as a main field of science which employs sophisticated instruments with precision lense􀀨 to acquire data of distant objects. Therefore, the fabrication of the lenses involves'a large amount ...
Small-Scale Wave Energy Convertor System for Effective Extraction and Storage of Energy from Sea Waves for Power Generation Applications.

Aththanayaka, A.M.C.P.; Dharmapriya, S.H.P.M.; Karunasena, H.C.P. (University of Ruhuna, Matara, Sri Lanka., 2019-03-06)

The sea wave energy is a potential sustainable solution for the global energy crisis in generations to come. However, particularly in Sri Lanka, there is very limited research carried out on wave energy convertors (WEC). ...
Assessment of Potential Water Repellency of Litter Components in Casuarina equisetifolia Plants.

Liyanage, T.D.P.; Leelamanie, D.A.L. (University of Ruhuna, Matara, Sri Lanka., 2019-03-06)

Water Repellency (WR) appears on low-energy surfaces and the magnitude varies with the types of vegetation in the surrounding area. The WR is most commonly associated with certain evergreen tree species with considerable ...
Preliminary Study on Phytochemical and Proximate analysis of Leaves of Plectranthus amboinicus (Roxb.) of Sri Lankan Origin.

Amarasiri, A.M.S.S.; Attanayake, A.P.; Arawwawala, L.O.A.M.; Jayatilaka, K.A.P.W.; Mudduwa, L.K.B. (University of Ruhuna, Matara, Sri Lanka., 2019-03-06)

There is an exceptional growth in the usage of herbal medicine in the management of a variety of diseases worldwide. However, plant materials used in herbal medicine are prone to adulteration, deterioration, and variation ...
Plant and Benthic Macroinvertebrates Communities in the Headwater Region of a Stream: Case Study Waturawa Ela a Tributary of Ginganga, Deniyaya.

Sanjaya, K.; Atapaththu, K.; Dilshan, E.; Thathsarani, A.; Chalanika, C. (University of Ruhuna, Matara, Sri Lanka., 2019-03-06)

The headwater region is a unique'ecosystem with unique characteristics. However, these habitats have been affected due to tea cultivations, deforestation and monospecific reforestation. To fill the scarse of information ...
Does the Folk Medicinal Plant Indigo/era tinctorica has Effective Activity Against Methicillin Resistant Staphylococcus aureus (MRSA)?

De Soyza, W.S.G.; Napagoda, M.T.; Wijayaratne, W.M.D.G.B.; Witharana, S. (University of Ruhuna, Matara, Sri Lanka., 2019-03-06)

he Methicillin Resistant Staphylococcus aureus (MRSA) is an important cause of nosocomial infections worldwide. These organisms have become resistant to most of the anti-Staphylococcal antibiotics. In fact, the rate of ...
The Change in Contents of Vitamin C, Total Phenolic, Total Flavonoid and Antioxidant Activities of Selected Fruits Stored under Refrigeration.

Bulugahapitiya, V.P.; Abeysuriya, A.P.H.I.; Jayatissa, L.P. (University of Ruhuna, Matara, Sri Lanka., 2019-03-06)

Epidemiological studies pro\jde convincing evidence of the beneficial role of antioxidants present in fruits and vegetables for reducing the risk of noncommunicable diseases. As many fruits are highly perishable, after ...
Preliminary investigation of leaves of Costus speciosus and Aporosa lindleyana for their biochemical composition.

Bulugahapitiya, V.P.; Jayarathne, S.S.I. (University of Ruhuna, Matara, Sri Lanka., 2019-03-06)

Sri Lanka is a tropical country, rich with vast diversity of medicinal plants which include endemic species with wide array of pharmacological properties and other health promoting benefits. Then􀀃 .. is still strong ...
Application of GPGPU for the Reduction of Computational Time of Smoothed Particle Hydrodynamics Based Numerical Models to Simulate Morphological Changes of Single Plant Cells during Drying.

Kodithuwakku, A.K.C.I.; Hansani, K.G.P.; Karunasena, H.C.P.; Baduge, S. (University of Ruhuna, Matara, Sri Lanka., 2019-03-06)

Drying, which happens in a complex manner inside the food m9.terial, is a popular method for preserving food materials by reducing water from t1e cells and tissues. Drying process can be simulated with the aid of numerical ...
Smart Meters for Monitoring Power Quality in Distribution Grid.

Eranda, W.R.; Kudahetti, R.M.; Madusanka, A.W.A.V.; Ranaweera, K.M.I.U.; De Silva, D.S. (University of Ruhuna, Matara, Sri Lanka., 2019-03-06)

With this paper, we have introduced a new system which can perform real time continuous power quality (PQ) monitoring in the distribution grid. This system provides proper PQ monitoring bylallocating to perform real time ...
Motion Planning of a Robotic Manipulator for 3D Scanning of Moving Objects on a Conveyor.

Weerasekara, D.R.B.K.K.; Kumara, K.J.C. (University of Ruhuna, Matara, Sri Lanka., 2019-03-06)

Industrial automation requires the automatic robots to p􀁆form material handling, assembly operations, and quality inspection mainly while achieving better performance in precision, accuracy and production rate of the ...
Conversion of Waste Polyethylene into Hydrocarbon Fuel - Analysis of the Effect of Set Temperature on Reaction Time and Liquid Yield.

Rohan, E.P.; Sumith, B.; Gunarathna, W.R.N.; Karunarathna, N.K.T.D. (University of Ruhuna, Matara, Sri Lanka., 2019-03-06)

Disposal of plastic waste has become one of the major environmental issues in Sri Lanka. The methods available to date such as incineration and land filling are costintensive and less accepted due t(f environmental impacts. ...
The Career Prospect of Undergraduates: An Empirical Study of Management Students.

Karunaratna, A.C. (University of Ruhuna, Matara, Sri Lanka., 2019-03-06)

Each individual from their childhood itself has a desired goal to find a well-accepted and respectable profession and is highly concern about tht}career progression since it is a major necessity in life and the society. ...
Ant - Insect Associations in Selected Sites in Matara District.

Peiris, B.H.O.S.; Wegiriya, H.C.E.; Wickramasinghe, M.G.V. (University of Ruhuna, Matara, Sri Lanka., 2019-03-06)

Ants are eu-social insects and one of the most important invertebrate groups in terrestrial habitats. Many ant species make obligatory or temporary associations with other organisms especially plant sap sucking insects ...

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