00290nam a22001097a 4500003000400000008004100004082001900045100005500064245002800119260002500147300000800172OSt240606b        |||||||| |||| 00| 0 eng d  a607.5483bC46A  aCochin University of Science and Technology Cochin  aAbstract of Thesis 1990  aC U S T Cochinc1990  a335