1. Materials Science and Technology Division, National Institute for Interdisciplinary Science and Technology, Industrial Estate P.O., Thiruvananthapuram695019, Kerala, India
2. Isotope Hydrology Division, Centre for Water Resources Development and Management, Kunnamangalam P.O., Kozhikode673571, Kerala, India
3. R&D Centre, Noritake Company Limited, 300 Higashiyama, Miyoshi, Aichi 470-0293, Japan