Spectrometric study of stars using ACCIMT telescope. J Adasuriya, K P S C Jayaratne and S Gunasekara. SLAAS, Proc. 58th Annual Session, Sri Lanka, 2002
Spectrometric study of Galaxies and Nebulas. I L P Indika, K P S C Jayaratne and N I Medagangoda. SLAAS, Proc. 58th Annual Session, Sri Lanka, 2002
The study on variation of the productivity of tea lands in the different agro-ecological regions in Sri Lanka, M.K.S.L.D. Amarathunga, M.A. Wijeratne, and K.P.S.C. Jayaratne, SLAAS, Proc. 56th Annual Session, Sri Lanka, 2000
Variation of soil degradation in tea lands and its impact on bush debilitation, M K S L D Amarathunga, M A Wijeratne and K. P. S. C. Jayaratne, Proc. Sri Lanka Assoc. Advmt. Sci., B.82, 100-101, Dec.1999.
On the accuracy of locating lightning ground flashes using two or more direction finding stations, D.U.J. Sonnadara, I.M.K. Fernando, S. Namasivayam, K.P.S.C. Jayaratne, K.R.A. Bandara, R. Lelwala, A.B. Weerasekera, C. Gomes, T.R. Ariyaratne, SLAAS, Proc. 55th Annual Session, Sri Lanka E1 (1999) 187.
Effects of ambient temperature and evaporation on yield of tea in Sri Lanka, M K S L D Amarathunga, K. P. S. C. Jayaratne and M A Wijeratne, Proc. Sri Lanka Assoc. Advmt. Sci., B.81, 99-100, Dec.1999.
Effect Of Wind on Horizontal Wire Antenna Collecting Atmospheric Air-Earth Current, R. Lelwala, T. Tuomi, S. Israelsson, K.P.S.C. Jayaratne, Proc. ICAE’99 610-613, Alabama, USA (1999).
The Polarity of thunderclouds observed in Sri Lanka, K.P.C.Jayaratne & A.G.Dayananda, Proc. Assoc. Advmt.Sci., El-36,323,Matara,Dec.1997.
The effect of edaphic factors on yield of tea in Sri Lanka, M K S L D Amarathunga, M A Wijeratne and K. P. S. C. Jayaratne, Proc. Sri Lanka Assoc. Advmt. Sci., B.29, 54, Dec.1999.
Multiplicty of Negative Return strkes of lightning flashes observed in Colombo, G.A.C.Gomes and K.P.C.Jayaratne,Prof. Sri Lanka Assoc.Advmt.Sci., El-37,324, Matara, Dec. 1997
Measurement of space chare dencity over flat ground in nearly neutral stratified atmospheric surface layer. R.Lelwala,S.Israelsson and K.P.C.Jayaratne, Journal of Atmospheric Electricity, 17(2) 59-68, 1997.
Comprison of preliminary breakdown pulses observed in Sweden in the temperate regions and that in Sri Lanka in the tropics, Chandima Gomes, Vernon Cooray and Chandan Jayaratne, Proc. 10 th Int. Symposium on High Voltage Engineering, OSAKA,jAPAN, 237-240, August 1997.