This author has not been identified. Look up 'Varghese S. Jacob' in GoogleThis author has not been identified. Look up 'Ramayya Krishnan' in GoogleThis author has not been identified. Look up 'Young U. Ryu' in GoogleThis author has not been identified. Look up 'Ramaswamy Chandrasekaran' in GoogleThis author has not been identified. Look up 'Sungchul Hong' in Google