• DEVELOPMENT & EVALUATION OF JACK OPERATED HERBAL JUICE/OIL EXTRACTOR FOR AYURVEDIC MEDICINE PREPARATION 

  Shantha, K.Y.H.D.; Pathiraja, P.M.Y.S.; Ranatunga, Y.M.M.K.; Rajawatta, K.M.W. (Institute of Technology, University of Moratuwa, 2024)

  Sri Lanka has a rich indigenous system of traditional medicine known as Ayurveda, which combines Sinhala traditional medicine, Indian Ayurveda and Siddha systems, Greek Unani medicine through Arab influence, and the unique ...
• Physico-chemical and Consumer Preference Analysis of Novel Herbal Soap Enriched with Aloe vera (Aloe barbadensis) 

  De Silva, S. I. S.; Bulathgama, B. E. A. U.; Somarathna, K. T. A. G.; Ranasingha, R.D.A.K.; Karunarathna, K.H.T.; Rajawatta, K.M.W.; Chandana, E.P.S. (Faculty of Technology, South Eastern University of Sri Lanka, 2024)

  Herbal soaps are popular products at a homemade scale worldwide, but innovative and commercialized local formulations are rare. Sri Lanka has a rich herbal diversity, and several plant extracts have been scientifically ...
• Design consideration of the semi-automated coconut de-husking machine 

  Silva, S.A.P.S.; Dahanayaka, A.J.G.S.; Rajawatta, K.M.W. (Faculty of Engineering, University of Ruhuna, Galle Sri Lanka, 2019)

  The process of de-husking which is the most important phase in coconut processing has faced a crisis in Sri Lankan coconut industry due to the scarcity of skilled labor and the complexity in manual de-husking. In an effort ...
• Evaluation of modified pluking pole for harvesting coconuts 

  Dahanayaka, A.J.G.S.; Silva, S.A.P.S.; Rajawatta, K.M.W.; Shantha, K.Y.H.D.; Paranagampola, P.A.U.W.K. (National Engineering Research and development Centre of Sri Lanka, 2017)

  The modified coconut plucking pole which supports farmers who are willing to harvest nuts from coconut trees has been developed as a solution for scarcity of coconut tree climbers in coconut plantation sector, Sri Lanka. ...
• Semi-automated de-husking machine for coconut industry in Sri Lanka 

  Silva, S.A.P.S.; Dahanayaka, A.J.G.S.; Rajawatta, K.M.W. (The Institution of Engineers, 2019)

  Coconut is one of the major perennial plantation crops in Sri Lanka. Furthermore, Coconuts play an important role in the daily life of Sri Lankans because most of the Sri Lankan cuisines are made by using coconut milk, ...
• INHOUSE CULTIVATION OF Withania somnifera (ASHAWANGHA) USING HYDROPONICS 

  Jayathilaka, M.S.; Subasinghe, S.; Rajawatta, K.M.W.; Karunarathne, K.H.T. (Faculty of Agriculture, Eastern University Sri Lanka., 2023)

  There is an annual demand for medicinal plant based raw materials in the world. To fulfill the increasing demands, the medicinal plants are harvested excessively from their natural habitants causing loss of biodiversity. ...
• A Review on Novel Approaches to Enhance Sound Absorbing Performance Using Textile Fibers 

  Madushika, J.W.A.; Lanarolle, W.D.G. (Taylor & Francis, 2022)

  Fibreglass, foam, mineral fibres and their composites are the conventional materials used in applica tions that require absorption of sound. However, due to the health risks associated with the traditional materials, textile ...
• Mathematical Modeling and Simulation of Acoustic Properties of Knitted Fabrics Backed by an Air Cavity 

  Madushika, J.W.A.; Wijerathne, J.K.; Lanarolle, W.D.G. (Postgraduate Institute of Science (PGIS), University of Peradeniya, Sri Lanka, 2021)

  Noise pollution has become a critical issue in the modern world of ever-increasing industries and machinery. Noise should be controlled due to the physical and psychological health effects associated with noise. Textiles ...
• Development of a small-scale reverberation chamber and validation of the diffuse field 

  Madushika, J.W.A.; Wijerathne, J.K.; Lanarolle, W.D.G. (Young Scientists Forum (YSF), University of Moratuwa, 2023)

  Noise absorbers are in a growing demand in the automotive, aerospace and building construction industries. Testing acoustic properties of materials is mandatory for developing an efficient acoustic controlling product ...
• Prosthetic Heart Valves – "The Beat Goes On" 

  Weerarathne, K.K.D.C.S. (Department of Science and Technology, Faculty of Applied Sciences, Uva Wellassa University of Sri Lanka, 2020)
• Study of the Use of Natural Pigments Extracted from Nephelium lappaceum (Rambutan) Peel and Melastoma malabathricum (Maha Bovitiya) Seeds as an Alternative to Synthetic Acid-Base Indicators 

  Weerarathne, K.K.D.C.S.; Samaraweera, R.L. (Uva Wellassa University Badulla, 90000 Sri Lanka, 2020)

  Acid-base indicators are widely used for visual detection of the endpoint of an acid-base titration. Most of these indicators are organic dyes of synthetic origin. These are hazardous, expensive, and harmful to the ...
• Design of a Barge for Small Scale Excavator in Narrow Canal 

  Manoj Kumara, J.L.R.; Lakmal Perera, H.S. (Associated Asia Research Foundation (AARF), 2020)

  The Sri Lanka Land Reclamation and Development Corporation (SLLRDC) is a Government Corporation operating under the Ministry of Megapolis and Western Development, mainly involved in dredging of canals, canal maintenance, ...
• Exploring the Ayurvedic Concept of Body Types and Their Relevance to Heart Rate Variability (HRV) 

  Madusankha, H.A.I.; Liyanage, D.L.C.P.; Amarakeerthi, S.; Sakunthala, H.S.; Premalal, E.V.A. (Springer, 2025)

  Heart rate variability (HRV) is a significant physiological indicator of autonomic nervous activity and cardiovascular flexibility. Based on the psychological and physiological nature, all human individuals belong to three ...
• "Lead-Free Mixed-Halide-Based Vacancy-Ordered Perovskites: Status and Opportunities in Optoelectronics" 

  Pabasara, W.G.A.; Sewvandi, G.A. (American Chemical Society (ACS), 2026)

  Lead halide perovskites have delivered excellent efficiencies in optoelectronic devices owing to their strong light absorption and low-cost fabrication processes. However, toxicity and limited operational stability remain ...
• Simulation-guided investigation of the effect of 2D perovskites on performances of 2D/3D mixed dimensional perovskite solar cells 

  Pabasara, W.G.A.; Akmal, U.K.D.M.; Sewvandi, G.A. (Elsevier Ltd., 2025)

  2D/3D mixed-dimensional Perovskite Solar Cells (PSCs) have attracted a great interest of scientists due to their balanced efficiency and stability. A detailed parametric investigation on 2D/3D mixed-dimensional PSCs is ...
• Exploring nontoxic perovskite materials for perovskite solar cells using machine learning 

  Pabasara, W.G.A.; Wijerathne, H.A.H.M.; Karunarathne, M.G.M.M.; Sandaru, D.M.C.; Abeygunawardhana, P.K.W.; Sewvandi, G.A. (Springer Nature, 2025)

  Perovskite solar cells are promising renewable energy technology that faces significant challenges due to the Pb induced toxicity. The current study addresses this issue by leveraging machine learning techniques to explore ...
• Extraction and characterization of bio-based polymeric materials from traditional rice varieties in Sri Lanka 

  Pabasara, W.G.A.; Nanayakkara, M.P.A.; Samarasekara, A.M.P.B.; Amarasinghe, D.A.S.; Karunanayake, L. (Faculty of Agriculture, University of Peradeniya, 2019)

  Introduction of sustainable and environmentally friendly alternatives for petroleum chemical-based polymers have become one of the most challenging areas of research. Hence, this study addresses the issue by suggesting a ...
• Interface Defect Layer Engineering for Realistic Modeling of 2D/3D Mixed Dimensional Perovskite Solar Cells 

  Pabasara, W.G.A.; Sewvandi, G.A. ("Complex System Research Centre, Niš, Serbia Mathematical Institute of the Serbian Academy of Sciences and Arts, Belgrade, Serbia", 2025)

  This study focuses on a comprehensive investigation into the influence of interface defects on the performance of 2D/3D mixed-dimensional perovskite solar cells (PSCs). To address the limitations of the conventional Interface ...
• HTL-Free 2D/3D Hybrid Perovskite Solar Cells: ETL Engineering and Simulation Insights 

  Pabasara, W.G.A.; Sewvandi, G.A. ("Complex System Research Centre, Niš, Serbia Mathematical Institute of the Serbian Academy of Sciences and Arts, Belgrade, Serbia", 2025)

  The commercialization of PSCs is hindered by instability under heat, moisture, and UV, which is mitigated by 2D/3D hybrids that combine the stability of 2D and the efficiency of 3D perovskites. Despite improvements in ...
• Numerical Investigation of MA₃Bi₂I₉-Based Lead-Free Perovskite Solar Cells: Impact of ETL Selection and Interface Band Alignment 

  Pabasara, W.G.A.; Sewvandi, G.A. (Springer Nature, 2025)

  This study presents a comprehensive numerical investigation of leadfree perovskite solar cells (PSCs) employing methylammonium bismuth iodide (MA3Bi219) as the absorber material in an FTO/ETL/MA3Bi2I9/Cu2O/Ni device ...

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