http://repository.wyb.ac.lk/handle/1/4 Sun, 11 Oct 2026 11:53:13 GMT 2026-10-11T11:53:13Z http://repository.wyb.ac.lk/handle/1/3592 Physicochemical Characteristics, Tannin Content and Sensory Attributes of the Cashew Apple of Eight Cashew (Anacardium occidentale L.) Varieties Grown in Sri Lanka Walgama, H.W.D.D.; Walakuluge, H.P; Gunasekara, S.G.V.D.H; Ratnayake, RH.M.K; Eeswara, J.P; Herath, H.M.S.P. Wed, 18 Nov 2020 00:00:00 GMT http://repository.wyb.ac.lk/handle/1/3592 2020-11-18T00:00:00Z http://repository.wyb.ac.lk/handle/1/3591 Atmospheric Pressure Plasma Treatment as a Cost Effective and Eco-Friendly Pre-Treatment Method to Enhance Seed Perfomance in Germination and Early Seedling Growth Hendeniya, N; Sandanuwan, T; Amarasinghe, D.A.S; Attygalle, D; Weragoda, S.C; Ranaweera, B; Rathnayake, K; Lalanka, M Novel methods of improving the seed quality have gained a lot of attention recently, cold atmospheric pressure plasma being one of the most promising methods. The effects of cold atmospheric pressure plasma treatment of chili - MI 2 (Capsicum annuum L.) and snake gourd - MI short (Trichosanthes cucumerina) seeds have been compared with a conventional fungicide seed coating and a biological coating treatment. The plasma exposure times used were 4min, 6min and 10min. Cold atmospheric pressure plasma treatment has shown improved effects on seed germination for both Capsicum annuum L. and Trichosanthes cucumerina seeds. Both seed types showed the best germination results under 6 min treatment while displaying the best Seed Vigor Index through 4 min plasma treatment. Compared with the coating treatments, cold atmospheric pressure plasma has shown a significant stimulation in seed germination and early growth. Fri, 01 Jan 2021 00:00:00 GMT http://repository.wyb.ac.lk/handle/1/3591 2021-01-01T00:00:00Z http://repository.wyb.ac.lk/handle/1/3590 Non-thermal atmospheric pressure plasma: An alternative method to enhance the seed quality in long bean-KPN (Vigna unguiculate L.) seeds Hendeniya, N; Sandanuwan, T; Attygalle, D; Amarasinghe, D.A.S; Weragoda, S; Ranaweera, B; Ratnayake, K; Lalanka, M Non-thermal atmospheric pressure plasma treatment has emerged as a promising potential seed quality enhancement method over recent years. This study focuses on the effect of atmospheric pressure plasma treatment on seed germination and growth of Long Bean-KPN (Vigna unguiculata L.) seeds under labora tory conditions. In this study, the Long Bean seeds were exposed to a dry air non-thermal atmospheric pressure plasma for different periods between 4 and 10 min to study its effect on seed germination and growth behavior. It was observed that Germination percentage and Seed Vigor Index were negatively affected by plasma treatment for more than 6 min. The performance of seeds treated for 4 min had a slight improvement in germination over the control specimen, while it showed a significant improve ment in average seed vigor index. The study confirmed that non-thermal atmospheric pressure plasma treatment can be stimulatory for seed germination and growth of Vigna unguiculate L. seeds if exposed to plasma for periods less than 4 min and it can be inhibitory for the purpose if exposure time exceeds 6 min. Copyright 2021 Elsevier Ltd. All rights reserved. Selection and peer-review under responsibility of the scientific committee of the International Confer ence on Applied Research and Engineering 2021 Fri, 01 Jan 2021 00:00:00 GMT http://repository.wyb.ac.lk/handle/1/3590 2021-01-01T00:00:00Z http://repository.wyb.ac.lk/handle/1/3589 A Method to Minimize Rework Amount Using Mean Particle Diameter: A Case Study of Activated Carbon Manufacturing Preena, TN; Dilanthi, MGS Rework is a major determinant of activated carbon manufacturing industry. This study investigated rework as a case study by determining its severity by identifying its causes. The considered work categories included only the rework of particle size preparation process. The objective of this research was to suggest a method to minimize the rework amount of size category and analyze the root causes for it. The analysis was done mainly over two objects, the crusher machine and particle size distribution process. Feed materials were categorized into two size combinations in the crushing process. The mean particle diameter analysis was done for both. The study found that activated carbon crushing process needed separate gap settings for each size combination. Further, feeding those two size combinations separately, would give more benefits. Further, it would maintain the specified product range at a higher level. Improving the quality of raw materials, checking the size distribution of the materials before feed, adjusting the new gap settings, replacing the rollers after checking attrition, conducting employee awareness programs and systemizing the procedure of issuing bin for feed were suggested as possible solutions along with the feasibility analysis. Thus, the technical team staff, engineers or mechanics can implement suitable programs or methods of gap setting procedures using their knowledge based on these findings. Tue, 01 Jan 2019 00:00:00 GMT http://repository.wyb.ac.lk/handle/1/3589 2019-01-01T00:00:00Z