Browsing RISTCON 2020 by Author "Amarasingha, N.D."

Browsing RISTCON 2020 by Author "Amarasingha, N.D."

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  • Investigation of sound absorption properties of selected fruit plants 
    Amarasingha, N.D.; Thilakarathna, D.M.D.N.; Gunasekara, T.M.A.D.; Bodhika, J.A.P.; Dharmaratna, W.G.D.; Jayatissa, L.P. (Faculty of Science, University of Ruhuna, Matara, Sri Lanka, 2020-01-22)
    Four selected fruit plants, Flacourtia inermis (fලdú), Achras sapota (සැප†ල්ලා), Averrhoa carambola (කාමරංකා), Syzygium jambos (ජïබු), were studied for their sound absorption properties. Reverberation room method described ...
  • Noise level measurements at Matara city 
    Amarasingha, N.D.; Thilakarathna, D.M.D.N.; Rathnayaka, R.M.B.D.; Sethunga, S.M.N.; Bodhika, J.A.P.; Dharmarathna, W.G.D. (Faculty of Science, University of Ruhuna, Matara, Sri Lanka, 2020-01-22)
    Rising traffic noise, due to rapidly increasing traffic density in urban cities in Sri Lanka, is becoming a severe problem, especially, for residents and workers in cities. High noise exposure causes mental and physical ...
  • A preliminary study on adverse health impacts due to occupational noise exposure in teaching environment 
    Perera, T.C.I.; Abeysuriya, U.I.P.; Amarasingha, N.D.; Sethunga, S.M.N.; Bodhika, J.A.P. (Faculty of Science, University of Ruhuna, Matara, Sri Lanka, 2020-01-22)
    Long-term exposure to occupational noise may cause various physiological, psychological and behavioral problems in workers. This study investigates health impacts on primary school teachers from occupational noise in primary ...

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