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Item Limitations of a soil water budgeting method in estimating groundwater recharge with particular reference to the dry zone of Sri Lanka(National Science Foundation:Colombo, 2005) De Silva, R.P.Item Paddy husk fuel block(Postgraduate Institute of Agriculture, University of Peradeniya:Peradeniya, 2006) Rathnayaka, R.P.K.C.S.; Ariyaratne, A.R.Item Design, development, evaluation and adoption of a husk fired furnace for forced ventilated paddy dryers in Sri Lanka(Postgraduate Institute of Agriculture, University of Peradeniya:Peradeniya, 1990) Dharmasiri, I.D.R.; Basnayake, B.F.A.Item Operation of fuelwood air heater systems in tea factories and their maintenance(TRI:Talawakele, 1983) Samarasingham, S.Item Analysis of quality and consumer preference for harvested rainwater in Anuradhapura district(Postgraduate Institute of Agriculture, University of Peradeniya:Peradeniya, 2006) Bandara, M.A.C.S.; De Silva, R.P.; Dayawansa, N.D.K.Item Some investigations on rotorvane manafacture(The Tea Research Institute. Talawakele, 1965) Lushington, R.A.Item The importance of feeding rates in Rotorvane manufacture(The Tea Research Institute. Talawakele, 1965) De Silva, W.C.A.Item Development of natural rubber latex Portland cement mixes for engineering applications(Rubber Research Institute. Agalawatta, 1978) Nadarajah, M.; Fernando, U.G.The deficiency in properties when portland cement is used in mixes with natural rubber latex is due to non-rubber substances and especially sugars found in latex serum. These non-rubber substances could be reduced by centrifugation and further by dilution with water and recentrifugation. A rubber/cement ratio of (1:11/2)cement sand mortar could be used up to 0.03perc. for field latex, up to 0.10perc. for centrifuged latex without drastically impairing physical properties; on the other hand some improved properties are obtained. The latices could be prevulcanised with vulcanising chemicals without serious reduction in strength when compared with the unvulcanised latices. The incorporation of natural rubber latex in 'Wirecon' boat building material has shown that appreciable improvement in impact strenth is obtained by the incorporation of the rubber latex.Item Design and fabrication of an engineering model of a crop dryer(Postgraduate Institute of Agriculture, University of Peradeniya:Peradeniya, 2006) Rathnayake, R.M.S.P.; Ariyaratne, A.R.; Prematilake, S.P.Item Development and evaluation of a rice stripping header system(Postgraduate Institute of Agriculture, University of Peradeniya:Peradeniya, 1990) Peries, R.T.C.