Research Publications (Recent):

• An Application of Vander Corput's Inequality, Journal of Inequalities in Pure and Applied Mathematics, Australia, Vol. 2(1), Art.8, pp 1-4, (2001)
• "Oil price, and its decisive role in Carbon Dioxide emissions and energy consumption modeling of high-income economies" Ceylon Journal of Science.(2007) (With R.Shanthini)
• Is there a co integrating relationship between Australia’s fossil-fuel based carbon dioxide emissions per capita and her GDP per capita? International Journal of Oil, Gas and Coal Technology, Vol. 3, No. 2 (2010) (With R. Shanthini)
• A randomized double-blined placebo-controlled study on the effects of a herbal toothpaste on gingival bleeding, oral hygiene and microbial variables. Ceylon Medical Journal, Vol. 56, No. 1 (2011) (With S Jayashankar, G J Panagoda, E A P D Amaratunga and P S Rajapakse)
• An Inequality Concerning The Kernal , Journal of Inequalities and Special
  
  Functions. Volume 3 Issue 2 (2012), Pages 59-70
• Probability Inequality Concerning A Chirp-Type Signal, Journal of Inequalities and Applications, SpringerOpen publications (2013), 2013:131 doi:10.1186/1029-242X-2013-131

• A statistical model for the Stream Flow Prediction in the Upper Kotmale catchment in Sri Lanka, Proceedings of the international conference on Sustainable Water Resources Management in the Changing Environment of the monsoon region, (2004) (With S.B. Weerakoon, and Chalani Prematilake)
• Oil Price and its decisive role in energy consumption modelling Paper presented at the International conference on Energy for Sustainable Development: Issues and Prospect for Asia, Phuket, Thailand. Appear in the proceedings of the Conference. (2005) (With R.Shanthini)
• Statistical analysis of total solar radiation in Colombo, Sri Lanka ,12th International Conference on Sri Lanka Studies, P.181(2010) (With M.P. Wickramasinghe, S. Premalal)
• Statistical analysis of the factors influencing the respiratory health of school students in Kandy. 12th International Conference on Sri Lanka Studies, P.291 (2010) (With Dulini Gawarammana, M.A. Elangasinghe, R.Shanthini)
• Prevalence and risk indicators of dental caries in a group of 2-4 year old children attending maternal and child health clinics (MCH) in Yatinuwara MOH area. 32nd Asia Pacific Dental Congress, P.130(2010) (With E.M.U.C.K. Herath, and J.Epasinghe)
• Oral health status and treatment needs of special healthcare need children (SHCNC): in a group of children attended to the dental hospital, Peradeniya. 32nd Asia Pacific Dental Congress, P.131(2010) (With D. Karunarathne and E.M.U.C.K. Herath,)
• Statistical Modeling of Extreme Daily Rainfall in Colombo International Conference on Sustainable Built Environments (ICSBE 2010) (with N.Varathan and N.Wikramanayake)
• Non-Linear Statistical Model for the Daily Stream flow Prediction in the KaluGanga Catchment in Sri Lanka. International Conference on Sustainable Built Environments (ICSBE) (2010) (with H.A.N.S. Hewavitharana and K.D.W. Nandalal)
• 2566 Oral Health Benefits of a Toothpaste with Nine Medicinal Herbs. International Association for Dental Research (IADR) Genaral Session, Barcelona, Spain (2010) (With S.Alan, G.J. Panagoda, E.A.P.D. Amarathunga, and P.S. Rajapakse)
• Estimation of Wind Speed Frequency Distributions to Calculate Wind Energy Production in Sri Lanka.National Energy Symposium,Vidulka (2011)(with Azrah Azhar)
• Statistical Analysis of Thunder-Days to Assist Forecasting Natural Disasters. Proceedings of the Symposium on Disasters: Reduction,Mitigation and Management (2011)(with K.R. Abhayasingha, A.Steephanson)
• Statistical Analysis of Road Accidents in Kandy, Sri Lanka. Proceedings of the Symposium on Disasters: Reduction,Mitigation and Management (2011)(with A.G.H.J. Edirisinghe,A.G.S.K. Warnakulasooriya
• Fitting Generalized Lambda Distribution for Solar Radiation in Colombo Sri Lanka International Conference on Sustainable Built Environments (ICSBE 2012) (with S. Jayasekara)
• Statistical Model to Predict Contour Elevation using  Shuttle Radar Topographic Mission Digital Elevation Data. International Conference on Sustainable Built Environments (ICSBE 2012) (with  S. R. Gnanapragasam and U.R.Rathnayaka)
• Investigation on Generalized Lambda Distribution for Wind Speed in Sri Lanka. 2nd Sri Lankan Roundtable Sustainable Consumption and Production(2013) (with A.L.A.P.M. Athapaththu)
• Efficacy of a toothpaste containing nine medicinal herbs on patients with chronic gingivitis ;Six-month, Double blind, Randomised Placebo-controlled Parallel design Clinical trial 1st International Conference on Unani, Ayurveda, Siddha and Traditional Medicine,Colombo, Sri Lanka (2013) (with P.S. Rajapakse and J. Howshigan )
• Antimicrobial activity of herbal ingredients of a toothpaste developed using a traditional formulafems , 5th congress of european microbiologists leipzig, germany  ( 2013)  (with J. Howshigan, D.M. Senanayake, P.S. Rajapakse)
• Use of Extreme Value Distribution in Modeling the Severe Wind Gust in Colombo, Sri Lanka, Proceedings of the International Forum for Mathematical Modeling , University of Colombo, Sri Lanka(2014)  ( with  S.H. Shajitha)
• Fitting Extreme value Distribution to the Daily Rainfall in Galle, Sri Lanka,  Proceedings of the International Conference (RITSCON 2014), Ruhuna University of Sri Lanka (2014) (with  S.H. Shajitha)Identify the Best Probability Distribution for Daily Maximum Rainfall in Colombo, Sri Lanka, Proceedings of the International Forum for Mathematical Modeling , University of Colombo, Sri Lanka(2014)  ( with R.Suthakaran and Nalin Wikramanayake)

• Development of a knowledge base for the optimum utilizability of available solar radiation over Sri Lanka, Peradeniya University research sessions , (2001) (With T.D.M.A. Samuel)
• A regression model for the Stream Flow at Calidonia in Upper Kotmale atchment in Sri Lanka, Peradeniya University research sessions (2004) (With S.B. Weerakoon, and Chalani Prematilake)
• Vectors and Transmission of Malaria in Canal irrigated and Natural Sream Irrigated systems in Matale District, Sri Lanka, Peradeniya University research sessions (2005) (With A.M.G.M. Yapabandara and P.H.C.A. Jayasooriya)
• Breeding Habits of Aedes Aegypti and Aedes Albopictus in some selected Dengu Risk Areas of Matale District, Sri Lanka, Peradeniya University research sessions, (2005) (With A.M.G.M. Yapabandara and S. Vaikunthan)
• Impact of Oil Price Fluctuations on the Carbon Dioxide Emissions Modeling Case With High-Income Economies, Peradeniya University research sessions , (2005) (With R.Shanthini)
• Relevance of the ever increasing model in describing the Carbon Dioxide emissions, Peradeniya University research sessions (2005) (With R. Shanthini and Ruvini Ekanayake)
• Error Correction Model for Predicting the Carbon Dioxide Emissions of a Coal-based High-income Economy, Peradeniya University Research Sessions, (2007) (With R.Shanthini)
• Computer Numerically Controlled (CNC) Machine: Model Building for Surface Finish in end Milling, Peradeniya University Research Sessions, (2008) (With G.D.S.Desinghe and S.D.Pathirana)
• Statistical Modeling of Non-Stationary Carbon dioxide Emissions versus Income Data. Proceedings of the Sixth Annual Research Session, ISSN 1800-4539,(2007) (With N. Tharshana and R.Shanthini)
• Prevalence, Severity, Pattern of Dental Caries and Care Index of Six Year Old Primary School Children in a semi Urban Area in Kandy, Sri Lanka, Peradeniya University Research Sessions, (2011),(with E.M.C.U.K. Herath, B.G.T.L. Nandasena, A. Steepenson, S.C. Ratnayake, S. Sakuma and H. Miyazaki).
• Joint Distribution of Water Levels of Kotte Canal and Kelani River, Proceedings of the Academic Sessions & Fist Annual General Meeting, Institute of Applied Statistics, Sri Lanka (2012),Pages 11-12. (with Sandamali Sumathipala and Nalin Wikramanayake).
• Fitting Generalized Lambda Distribution to the Difference of Spatial Elevations Data in  Sri Lanka, Proceedings of the Annual Academic Sessions, The Open University of Sri Lanka(2013), Pages 194-197. (with S.R. Gnanapragasam)
• Wind Speed Analysis Based on Mixture Weibull Distribution, Proceedings of the Academic Sessions & Fist Second Annual General Meeting, Institute of Applied Statistics, Sri Lanka (2013),Pages 11-12. (with D.Rajapaksha)
• Extreme value Analysis of Daily Rainfall in Trincomalee, Sri Lanka,Proceedings of the 3rd International Symposium, South Eastern University of Sri Lanka (2013), Vol-2, Pages 77-80. (with S.H. Shajitha)
• The Relationship among Inflation, Exchange rate and Sectoral stock price indexex in Sri Lanka, Peradeniya University Research Sessions, (2013) (With A.D.H.K. Kankanmge and U.P.G. Lakmali)
• Statistical Analysis of Extreme Ocean Waves in Galle , Sri Lanka, Peradeniya University Research Sessions, (2013) (With N. Wikramanayaka and T. Thevasiyani)
• Rajapakse P.S., Howshigan J, Perera K. Efficacy of a toothpaste containing nine medicinal herbs on patients with chronic gingivitis ;Six-month, Double blind, Randomised Placebo-controlled Parallel design Clinical trial 1st International Conference on Unani, Ayurveda, Siddha and Traditional Medicine19–21 December 2013,Colombo, Sri Lanka.