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Electronic Energy States in Nano Particles

Jayalalani, J.A.D.; Hewageegana, P.S.; Siripala, W.P. (University of Kelaniya, 2012)

An electron in the conduction band of a particle is nearly free to move inside the particle and this situation can be pictured as an “Electron inside a finite depth potential well”. The energy equations for this system ...

Polarizability per Unit Length of a Nanowire including Nonlocal Effects

Hewageegana, P. (University of Kelaniya, 2012)

It is well known that the electronic and optical properties of very small structures such as, nanospheres, nanowires, nanocavities and nanocylinders are very different from those of the corresponding bulk materials because ...

Assessment of ICT Use in Government Schools of Kalmunai Central Zone, Sri Lanka

Haleem, S.L.A. (University of Kelaniya, 2012)

Rapid development of Information Communication Technology (ICT) applications in each and every field has led researchers to investigate the status of ICT utilization in respective sectors. In that sense it is important ...

An Urban Water Consumption Model for Gampaha District, Sri Lanka

Gunawardana, K.D.A.M.; Kulatunga, D.D.S. (University of Kelaniya, 2012)

Water is a limited and an essential resource for living and its importance is understood by all. Climate change along with increase in population and economic growth exert stress on existing water resources. Sri Lanka ...

On the Integer Roots of Polynomial Equation

Dharmasiri, K.G.E.U.; Dahanayaka, S.D.; Piyadasa, R.A.D. (University of Kelaniya, 2012)

Integer solutions of polynomial equations are very important in number theory. However, solutions of general polynomial equations of degree five or higher than five cannot be solved in radicals due to Abel-Ruffini theorem. ...

Analysis of Fatalities in Road Accidents considering Peliyagoda Police Area in Gampaha District as a Case Study

Dissanayaka, D.M.P.V.; Kulatunga, D.D.S. (University of Kelaniya, 2012)

Road accidents have become a leading cause of death and injury as well as property damage worldwide. In Sri Lanka, a steady increase of road accidents has been reported resulting in a rising trend of fatalities too. In ...

Time Fluctuation Models to Forecast Tea Production, Prices and Exports in Sri Lanka

Aponsu, G.M.L.M.; Jayasundara, D.D.M. (University of Kelaniya, 2012)

The production and consumption of tea worldwide have increased over the past decade, and this increase is expected to continue. The tea industry is a key component in the Sri Lankan economy, and is a leading foreign ...

In-vitro Assays on the Effect of Four Commercially available Fungicides on Fungal Pathogens of Commonly Grown Ornamental Foliage Plants in Sri Lanka

Wimalasena, W.W.Y.; Deshappriya, N. (University of Kelaniya, 2012)

The foliage plant industry continues to expand in Sri Lanka, supplying rooted plants, stem cuttings and cut leaves for foreign and local markets. Diseases caused by fungal pathogens result in loss of plants and plant ...

Identification of Causal Factor of Leaf Spots in Cordyline fruticosa compacta

Wickramarathe, S.N.M.; Kumara, G.D.K.; Dissanayake, M.L.M.C.; Samarasinghe, U. (University of Kelaniya, 2012)

Cordyline fruticosa compacta is a tropical foliage plant variety which is commonly known as ‘Ti plant’. The variety consists of several types with different leaf colors. However, this variety is susceptible to many ...

Effect of Combination of Organic and Inorganic Nitrogen Fertilizers and Spacing on Growth and Yield of Tomato (Lycopersicon esculantus L. var. Thilina) in the Eastern Region of Sri Lanka

Sutharsan, S.; Rajendran, M.; Srikrishnah, S. (University of Kelaniya, 2012)

A field experiment was carried out to investigate the effect of combination of organic nitrogen (Org.N) and inorganic nitrogen (Inorg.N) sources and spacing on plant growth and yield of tomato (var. Thilina). The treatments ...

Performance of Selected Microlivestock Species under Integrated Farming Systems

Subalini, E.; Rameshkaran, M. (University of Kelaniya, 2012)

The microlivestock species play an important role in integrated farming systems. Analysis of the performance under different integrated farming systems is necessary to identify strengths, weaknesses and opportunities for ...

Effect of Different Levels of Inorganic Fertilizer, Compost and Animal Manure as Basal Application on Growth and Yield of Red Onion (Allium ascalonium) in NCB Soil

Rathnayaka, K.K.P.; Somarathna, T.; Chandrapala, A.G. (University of Kelaniya, 2012)

An experiment was conducted to find out the yield and qualities of cluster onion with different organic manure applied in Non-calcic Brown (NCB) soils (altisols) and to assess the feasibility of cutting down the inorganic ...

Phytoextraction of Lead and Chromium Using Selected Legumes: A Study of Growth and Germination of Plants under Contaminated Conditions

Rathnaweera, T.A.D.H.N.; de Silva, R.C.L. (University of Kelaniya, 2012)

Soil pollution has become a major problem in recent times. Heavy metals make a significant contribution to soil contamination. Phytoextraction is a soil cleanup technology that seeks to exploit the ability of some plants ...

Effect of Different Border Crops and Fertilizer Regimes on Capsicum Growth and Yield

Ramesh, M.; Sivachandiran, S. (University of Kelaniya, 2012)

A study was carried out to access the effect of different border crops and fertilizer regime on capsicum plant growth and yield at the Agricultural Research Station, Thirunelvely, in 2009. The experiment was carried in ...

Distribution and Host Range of Paracoccus marginatus (Hemiptera: Pseudococcidae) in Batticaloa District, Sri Lanka

Prishanthini, M.; Vinobaba, M. (University of Kelaniya, 2012)

Papaya mealybug, Paracoccus marginatus Willams and Granara Willink, is a small invasive hemipteran that attacks several genera of host plants, including economically important tropical fruits and ornamentals. It is an ...

A Biological System with Bristle Fiber of Coconut to Reduce COD Level of Synthetic Rubber Waste

Prasanna, M.A.U.U.; Ganepola, K.; Mendis, S. (University of Kelaniya, 2012)

It is a great problem to reduce COD (Chemical Oxygen Demand) levels of water soluble synthetic rubber waste which comes from rubber factories. Solid waste can be removed by using alum and lime. After removing solid waste ...

Concept of Mass in General Relativity

Perera, K.L.M.M.; de Silva, L.N.K. (University of Kelaniya, 2012)

The General Theory of Relativity formulated by Albert Einstein, is a widely accepted description of “gravitation” in modern physics. We discuss the concept of mass in General Relativity using the interior Schwarzschild ...

Current Distribution of Tiger Spiders (Genus: Poecilotheria), in Selected Sites in Sri Lanka

Nanayakkara, R.P.; Ganehiarachchi, G.A.S.M.; Vishvanath, N.; Kusuminda, T.G.T. (University of Kelaniya, 2012)

Six species of Poecilotheria are currently recorded in Sri Lanka: Poecilotheria fasciata, Poecilotheria ornata, Poecilotheria subfusca, Poecilotheria uniformis, Poecilotheria smithi and Poecilotheria pederseni, the genus ...

Use of Analytical Chemistry in Numismatic Studies

Lakmali, U.G.R.; Tharangani, K.W.C. (University of Kelaniya, 2012)

Numismatics; the study of coin and currency is one of the interdisciplinary subjects of archaeology. Although archaeology has a stable and accepted position in the Sri Lankan context, numismatics is still at a relatively ...

Challenges of Defending Maritime Domain of Sri Lanka

Kotakadeniya, H.M.S.K.B.; Kalingamudali, S.R.D.; Bulathsinghala, G. (University of Kelaniya, 2012)

The Indian Ocean is rapidly surpassing both the Atlantic and Pacific Oceans as the world’s busiest and most critical trade corridor, triggering several dramatic changes in the region. With the growth in legitimate ...

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