Department of Physics - Professor (Mrs) W J M Samaranayaka

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Professor (Mrs) W J M Samaranayake

Professor (Mrs) W J M SamaranayakeBSc (Peradeniya), DEng (Kumamoto), CPhys, FIP (SL), MIEE (Japan)
Professor

Specialized Field	:	Plasma Physics
Email Address	:	janaki@kln.ac.lk
Telephone No	:	+94 (0)11 2 903 351 (ext: 349)
		+94 (0)34 2 228 991 (Residence)
Office Location	:	B1 217/3
Teaching	:	Environmental Physics
		Electronics

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Research Interests

Ozone generation for industrial applications using pulsed power technology, Non-thermal gas discharges, and Plasma Physics (chemical plasmas)

Selected Publications

A.M.M.N.B. Amarakoon, W.P.T. Hansameenu and W.J.M. Samaranayake “Study of the improvement of Ozone production: A simulation”, Proc. of International Conference on “Applied and Pure Sciences”(ICAPS), Faculty of Science, University of Kelaniya, Sri Lanka, PO 05, pp. 32, October 2022. L.M. Gunasinghe, W.J.M. Samaranayake and W.P.T. Hansameenu, “Design of heat sink & simulation of electronic cooling of power transistor circuit”, Proc. of International Conference on “Applied and Pure Sciences” (ICAPS), Faculty of Science, University of Kelaniya, Sri Lanka, PO 08, pp. 35, October 2022. A. G. T. De Silva, W. J. M. Samaranayake and K. M. D. C. Jayathilaka, “Electrolytic Hydrogen Production Using Solar Power,” Proc. of Inaugural International Conference on “Frontiers in Nanoscience & Nanotechnology”, Faculty of Applied Sciences, Sabaragamuwa University, Sri Lanka, D3, pp. 44, 2016. D. R. A. Mendis and W. J. M. Samaranayake, “The effect on the surface tension of brilliant white paint coatings by chemical and detergent additives,” Proc. S.L. Assoc. of the Advmt. Sci., 68^th Annual Session, No. 508/E1, pp. 58, December 2012. D. R. A. Mendis and W. J. M. Samaranayake, “Determination of the Temperature Coefficient of the Refractive Index of Liquids for Immersion Lithography,” Proc. of 28^th Technical Session, Institute of Physics, pp. 77 - 83, March 2012. W. J. M. Samaranayake, Y. Miyahara, T. Namihira, S. Katsuki, T. Sakugawa, R. Hackam and H. Akiyama, "Pulsed Streamer Discharge Characteristics of Ozone Production in Dry Air," IEEE Trans. DEI, Vol. 7, pp. 254-260, April 2000. W. J. M. Samaranayake, Y. Miyahara, T. Namihira, S. Katsuki, R. Hackam and H. Akiyama, "Ozone Production Using Pulsed Dielectric Barrier Discharge in Oxygen," IEEE Trans. DEI, Vol. 7, pp. 849 -854, December 2000. W. J. M. Samaranayake, Y. Miyahara, T. Namihira, S. Katsuki, R. Hackam and H. Akiyama, “Ozone Generation in Dry Air Using Pulsed Discharges With and Without a Solid Dielectric Layer,” IEEE Trans. DEI, Vol. 8, pp. 687 -697, August 2001. W. J. M. Samaranayake, Y. Miyahara, T. Namihira, S. Katsuki, R. Hackam and H. Akiyama, “Pulsed Power Production of Ozone in O2/N2 in a Coaxial Reactor Without Dielectric Layer,” IEEE Trans. DEI, Vol. 8, pp. 826 -831, October 2001 H. Akiyama, Y. Miyahara, W. J. M. Samaranayake and S. Katsuki, "Characteristics of Oznizer by Means of Pulsed Power, Recent Development of Ozonizer" J. Plasma and Fusion Research, Vol. 74, No. 10, pp.1139- 1143, in Japanese 1998. W. J. M. Samaranayake, Y. Miyahara, T. Namihira, S. Katsuki, T. Sakugawa, R. Hackam and H. Akiyama, "Pulsed Power Production of Ozone Using Non-thermal Gas Discharges, " IEEE Electrical Insulation Magazine, Vol. 17, pp. 17 -25, July/August Issue, 2001. W. J. M. Samaranayake and LSR Kumara, “High Voltage Engineering Applications in Sri Lanka”, IEEJ Magazine of Electrical Insulation News in Asia, p. 26, (November 2005). W. J. M. Samaranayake, “Digital Electronics,” Physics Magazine of Inst. of Physics, Sri Lanka, No. 1, pp. 48-59, 2005. W. J. M. Samaranayake, Y. Miyahara, S. Katsuki, I. Lisitsyn, R. Hackam and H. Akiyama, "Characteristics of Ozone Production by Pulsed Power, " 12 th IEEE Int. Pulsed Power Conference, Monterey, California, USA , PC067, p.W-104, 1999. W. J. M. Samaranayake, Y. Miyahara, S. Katsuki, I. Lisitsyn, R. Hackam and H. Akiyama, "Ozone Production by Pulsed Power in Dry Air, " 12 th IEEE Int. Pulsed Power Conference, Monterey, California, USA , pp. 1326-1329, 1999. W. J. M. Samaranayake, Y. Miyahara, T. Namihira, S. Katsuki, R. Hackam and H. Akiyama, "Ozone Production Using Cylindrical Reactors With and Without Solid Dielectric Layers in Dry Air, "IEEE Int. Conference on EIDP, Austin, Texas, USA, pp. 379-382, 17-20 October, 1999. W. J. M. Samaranayake, Y. Miyahara, T. Namihira, S. Katsuki, R. Hackam and H. Akiyama, "Ozone Generation in Oxygen Using Pulsed Discharges," IEEE Int. Conference on EIDP, Victoria, BC, Canada, 15-18 October, 2000. W. J. M. Samaranayake, Y. Miyahara, T. Namihira, S. Katsuki, R. Hackam and H. Akiyama, "Ozone Synthesis in Oxygen Using a Pulsed Discharge," IEEE Int. Conference on EIC, Cincinnati, Ohio, USA, pp. 449-452, 16-18 October, 2001. W. J. M. Samaranayake, R. Hackam and H. Akiyama, "Ozone Synthesis in a Cylindrical Dry Air-fed Ozonizer by Non Thermal Gas Discharges ," IEEE Int. Conference on Properties and Application of Dielectric Materials (ICPADM), Nagoya, Japan, pp. 547-550, 1-5 June, 2003. W. J. M. Samaranayake, Y. Miyahara, T. Namihira, S. Katsuki, R. Hackam and H. Akiyama, "Influence of Gas Mixtures on and Characteristics of Ozone Production by Pulsed Power, " National Convention Record I.E.E. Japan, pp. I-112, 23 ^rd March, 1999. W. J. M. Samaranayake, Y. Miyahara, T. Namihira, S. Katsuki, R. Hackam and H. Akiyama, "Ozone Production in Oxygen, Dry Air and in Gas Mixtures of Oxygen and Nitrogen Without a Dielectric Layer Using Pulsed Power, " Discharge Conf. IEEJ, ED-01-33/DEI-01-39/HV-01-33, pp. 87-92, 2001. Y. Miyahara, W. J. M. Samaranayake, S. Katsuki, H. Akiyama, S. Maeda and T. Sakugawa, “Temporal Distribution of Ozone Using Pulsed Power,” Jt. Conf. EEE in Kyushu, No. 1560, p. 876, 1998. Y. Miyahara, W. J. M. Samaranayake, S. Katsuki, H. Akiyama, S. Maeda and T. Sakugawa, “Ozone Generation Using Pulsed Power,” National Convention Record I.E.E. Japan, No. ED-98-219, 1998. W. J. M. Samaranayake and L.S.R. Kumara, “High Voltage Engineering Applications in Sri Lanka”, IEEE Int. Symposium on Electrical Insulating Materials (ISEIM), International Technical Exchange Session, Kitakyushu, Japan, ES-7, pp. 139-142, 5-9 June, 2005. J. H. S. R. De Silva and W. J. M. Samaranayake, "Universal Length Measuring Tool of Insulation ," IEEE Int. Symposium on Electrical Insulating Materials (ISEIM), Kitakyushu, Japan, P2-60, pp. 760-762, 5-9 June, 2005. W.J.M. Samaranayake, “Numerical Simulation of Ozone Using Pulsed Discharges in Oxygen,” CHEMTECH 2007, Institute of Chemistry Ceylon, Bandaranaike Memorial International Conference Hall, Colombo, Sri Lanka, Vol. 2, pp. 7-11, 2007. W. J. M. Samaranayake and K. P. S. C. Jayaratne, “Determination of Lightning Charge Centre Location From Two Station Electrostatic Field Change Measurements,” Proc. S.L. Assoc. of the Advmt. Sci., 51^st Annual Session, No. E1-04, pp. 338-340, November, 1995. K. P. S. C. Jayaratne and W. J. M. Samaranayake, “Some Characteristic Features of Radiation Field Signatures from Tropical Cloud Flashes ,” Journal of Inst. of Physics, Sri Lanka, JIPSL-11, Vol. 10, No. 1, March 1995. W. J. M. Samaranayake and K. P. S. C. Jayaratne, “Occurrence Percentage and Characteristics of Different Lightning Flashes by Means of Radiation Field Measurements,” Proc. S.L. Assoc. of the Advmt. Sci., 52^nd Annual Session, No. E1-09, pp. 164 – 165, November 1996. W. J. M. Samaranayake and K. P. S. C. Jayaratne, “Charge and Size Distribution of Raindrops,” Proc. S.L. Assoc. of the Advmt. Sci., 52^nd Annual Session, No. E1-10, pp. 165 – 166, November 1996. K. M. D. C. Jayathilaka and W. J. M. Samaranayake, “Design of an Electronic House Protection System,” Proc. S.L. Assoc. of the Advmt. Sci., 60^th Annual Session, No. 501/E1, pp. 199, December 2004. J. H. S. R. De Silva and W. J. M. Samaranayake, “Modifications Resulting in a Faster, Quieter and Cooler PC,” Proc. S.L. Assoc. of the Advmt. Sci., 60^th Annual Session, No. 502/E1, pp. 200, December 2004.

Membership in Professional Societies

Special Achievements / Awards

Fellowships