Browsing 01st RIURES - 2022 by Issue Date

Browsing 01st RIURES - 2022 by Issue Date

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  • Lab scale injection molding machine 
    Sirinaga, E.W.A.T.B.; Deemantha, M.B.A.; Subasinghe, H.L. (Ruhuna Science Research Circle, Faculty of Science, University of Ruhuna, 2022-11-02)
    Plastic pollution is the buildup of synthetic plastic waste items in the environment it threats human population, wildlife, and the ecosystems. Plastics have drawn more attention recently as a substantial contaminant. ...
  • Solar water distillation system 
    Dissanayake, D.A.I.K.; Subasinghe, H.L. (Ruhuna Science Research Circle, Faculty of Science, University of Ruhuna, 2022-11-02)
    A solar water distillation device cleans water by removing impurities from fresh water. According to market research, water distillers in the market often have poor production rates and also they are expensive. In this ...
  • Smart pulverizer machine 
    Suraweera, W.H.K.; Subasinghe, H.L. (Ruhuna Science Research Circle, Faculty of Science, University of Ruhuna, 2022-11-02)
    Waste is a global issue. Food waste is an extremely serious environmental issue, and pollution of air and water is caused because of improperly discarded food. Most nations lack effective ways to dispose food waste. Producing ...
  • Development of sweet potato starch-based thin films to produce biodegradable packaging materials 
    Sasikala, K.L.N.S.; Kondarage, Y.G.; Senavirathna, H.V.H.H.; Diyabalanage, S.; Rodrigo, D. (Ruhuna Science Research Circle, Faculty of Science, University of Ruhuna, 2022-11-02)
    Starch-based bio plastics have been widely used because of their renewability, sustainability, and cost-effectiveness. However, due to the excessive water absorption and poor mechanical characteristics, native starch films ...
  • Salient object detection of images with various object properties 
    Weerasinghe, M.A.M.K.; Madushika, M.K.S.; Kumari, D.W.C.P. (Ruhuna Science Research Circle, Faculty of Science, University of Ruhuna, 2022-11-02)
    Convolutional Neural Networks (CNNs) have recently shown robust feature representation capabilities and have substantially aided the development of Salient Object Detection (SOD). Most of the SOD models are used encoder-decoder ...
  • Development of a haptic navigation system for blind and visually impaired pedestrians 
    Karthiha, R.; Kondarage, Y.G.; Kondarage, A.I. (Ruhuna Science Research Circle, Faculty of Science, University of Ruhuna, 2022-11-02)
    Blind and visual impairment affect over 285 million people globally. 246 million individuals worldwide have mild to severe visual impairment, and there are 39 million blind people. The navigation features supplied by ...
  • Development of a coconut coir dryer machine using the rotary drying method and biomass heating 
    Senarathna, H.P.D.S.; Weerarathne, C.; Subasinghe, H.L. (Ruhuna Science Research Circle, Faculty of Science, University of Ruhuna, 2022-11-02)
    Coconut coir is one of the main exports in Sri Lanka. Drying is an important step in the coconut coir process, which affects the quality. At present, coconut coir drying is mainly done using sunlight. However, it is difficult ...
  • Design and development of a SCARA robotic arm for green house management 
    Dissanayake, K.S.T.; Subasinghe, H.L. (Ruhuna Science Research Circle, Faculty of Science, University of Ruhuna, 2022-11-02)
    This study details the kinematic modeling and design process for a 4-DOF SCARA-style robotic arm that is intended to use in an agricultural field. The labor-intensive process of harvesting fruiting vegetables traditionally ...
  • Development of a paper based novel seed laying technology for paddy cultivation 
    Arachchi, D.S.L.; Kondarage, Y.G.; Subasinghe, H.L.; Lakshman, P.L.N. (Ruhuna Science Research Circle, Faculty of Science, University of Ruhuna, 2022-11-02)
    Rice is the staple food in many of countries. However, farmers face many problems such as weed growth, labor cost and machinery cost to obtain a satisfactory yield from paddy cultivation. In this study, a paper based novel ...
  • Automated liquid dye color mixing system 
    Raymond, P.R.; Ahamed, M.; Ajward, A.M. (Ruhuna Science Research Circle, Faculty of Science, University of Ruhuna, 2022-11-02)
    There is a worldwide tendency to automate manual operations in production lines. Some manual systems cause poor quality of the products, slow processing speeds, and waste material, which are caused by human errors in the ...
  • Assessing the ecological status of Muthukandiya wetland by using aquatic macrophyte-based limnological condition index and water quality index 
    Dissanayake, D.M.S.N.K.; Wijeyaratne, W.M.D.N. (Ruhuna Science Research Circle, Faculty of Science, University of Ruhuna, 2022-11-02)
    Aquatic macrophytes are excellent ecological indicators in aquatic ecosystems. The present study used the aquatic macrophyte-based limnological condition index (LICOI), water quality index (WQI), and aquatic macrophyte-based ...
  • Diversity and abundance of Sea Urchins at selected locations of Wellamadama and Devinuwara coastal areas, Matara, Sri Lanka and their social impact 
    Dissanayake, H.K.; Punchihewa, D.A.G.; Rasangi, G.S.J.; Unamboowe, R.W.M.S.W. (Ruhuna Science Research Circle, Faculty of Science, University of Ruhuna, 2022-11-02)
    Sea urchins which belong to phylum Echinodermata can be found in all marine habitats including coastal rocky shores. They are covered with sharp, brittle spines. There were many reports of injuries caused by the accidental ...
  • Characterizing phytoremediation of carcinogenic polycyclic aromatic hydrocarbon naphthalene by Eichhornia crassipes (Mart.) Solms aquatic plant 
    Perera, M.T.D.; Vithanage, P.K.; Samarasinghe, U.K.A.; Arawwawala, L.D.A.M.; Colonne, P.M. (Ruhuna Science Research Circle, Faculty of Science, University of Ruhuna, 2022-11-02)
    The smallest polycyclic aromatic hydrocarbon, naphthalene can be found in many crude oil-contaminated water bodies. Naphthalene is persistent and considered as very toxic to aquatic life. It is also a cancer-causing agent. ...
  • Effects of light intensity on the content of photoprotective compounds of Tolypothrix sp. and Oscillatoria sp. 
    Niwunhella, D.A.S.; Asanthi, H.B.; Masakorala, K. (Ruhuna Science Research Circle, Faculty of Science, University of Ruhuna, 2022-11-02)
    Light intensity is a key factor in the growth rate and production of photoprotective compounds of cyanobacteria and alteration of light intensities can affect their physiology, biomass, and biochemical composition. However, ...
  • Effect of tender shoot removal time on tuber yield of sweet potato 
    Perera, U.D.T.; Weerasuriya, M.B.; Gunarathne, D.A.B.N. (Ruhuna Science Research Circle, Faculty of Science, University of Ruhuna, 2022-11-02)
    An experiment was conducted at the Agriculture Research Station, Thelijjawila to find out the best shoot tip removal time on sweet potato tuber yield with highest nutritional content of sweet potato leaves. The experiment ...
  • Antibacterial activity of leaf essential oils of Citrus crenatifolia and Citrus reticulata: a comparative study 
    Amarasekara, C.I.; Denagamagei, S.S.; Weerakoon, W.A.H.C.B.; Wettasinghe, W.A.D.L.; Udalamaththa, V.; Karunarathne, S.R. (Ruhuna Science Research Circle, Faculty of Science, University of Ruhuna, 2022-11-02)
    Plant essential oils (EOs) are smart alternatives to synthetic antibiotics. Citrus crenatifolia (CC, Heen naran), a native plant to Sri Lanka and Citrus reticulata (CR, Mandarin) are two species of genus Citrus in the ...
  • Effects of aqueous seed extracts of Mangifera zeylanica and Persea americana on enhancing in vitro tyrosinase activity 
    Gnanasekaram, S.; Uthayaratnam, V.; Ranganathan, G.; Udalamaththa, V. (Ruhuna Science Research Circle, Faculty of Science, University of Ruhuna, 2022-11-02)
    Melanogenesis is the production of the pigment melanin which governs the skin color of humans. Abnormal loss of melanin can lead to disorders such as tinea versicolor, vitiligo, pityriasis alba, etc. Although these ...
  • Effects of Mangifera zeylanica, Persea americana, and Passiflora edulis seed extracts on in vitro anti-tyrosinase activity 
    Uthayaratnam, V.; Gnanasekaram, S.; Ranganathan, G.; Udalamaththa, V. (Ruhuna Science Research Circle, Faculty of Science, University of Ruhuna, 2022-11-02)
    Melanogenesis is the process that determines human skin pigmentation via the production of melanin. The high demand for skin-lightening products globally had contributed to the drastic increase in commercialization of ...
  • Use of cop operon of Staphylococcus epidermidis TWSL_17 in biosensor construction 
    Wijayaweera, P.M.; Wijayarathna, C.D.; Dissanayake, D.M.C.C. (Ruhuna Science Research Circle, Faculty of Science, University of Ruhuna, 2022-11-02)
    Heavy metals are defined as metallic elements, which have a relatively higher density than water. Copper is an abundant metal element in the environment which is required by all living organisms. However, high concentration ...
  • First report of phytoplasma infection on Sesamum indicum L. in Sri Lanka 
    Sudeera, W.N.; Abeysinghe, S. (Ruhuna Science Research Circle, Faculty of Science, University of Ruhuna, 2022-11-02)
    Phytoplasma is an important group of prokaryotes infecting number of plant species including economically important crops causing different diseases resulting in significant crop loss worldwide. There are no effective ...

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