Gopinathan,C P; Dr.Ramachandran Nair,P V(Cochin University of Science and Technology, December , 1981)
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Abstract:
This thesis deals with the results oi’
investigations on phytoplankton productivity and related
aspects conducted in various ecoaystms such as estuarine,
inshore and oceanic enviroments and certain special
ecosytans including the pu.-awn culture fields and associated
many-eves, mud bank and the seas around the Andaman-Nicobar
Islands. This study also includes the qualitative and
quantitative variations of phytoplankton production, their
seasonal abundance, factors controlling the same and the
magnitude of the potential resources derived 1!:-om it
Raveendran Nair, B; Dr.Joseph,Francis D(Cochin University of Science and Technology, December , 1981)
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Abstract:
Urea-formaldehyde resins find numerous
applications in adhesive, textile finishing and moulded
plastic industries. Kinetic investigations of the reactions of
urea and its related compounds with formaldehyde in
aqueous acid, alkaline and neutral media have been carried
out. A thin—layer chromatographic method was developed
for the separation and estimation of the products of these
reactions. Using this technique the various initial steps
in the reactions were analysed and the rate constants have been determined.
Description:
Department of Applied Chemistry, Cochin University of Science and Technology
Nirmala, Paul; Dr.Krishna Pillai, M G(Cochin University Of Science And Technology, December 2, 1981)
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Abstract:
The thesis is a report of the attempts made to
prepare semiconducting and dielectric thin films and to
study their electrical properties. It consists of (i)
studies on the preparation and electrical characteristics
of compound semiconductor thin films of silver sulphide
and ferric hydroxide, and (ii) investigations on the electrical
and dielectric properties of plasma polymerized
thin films of para-toluidine element
Description:
Department
of Physics,Cochin University Of Science And Technology
Narayana Pillai, V; Dr.Murthy, A V S(Cochin University of Science And Technology, 1982)
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Abstract:
The present study is aimed at observing the variations, in
space and time, of see of the important hydrographic parameters such
as sea water temperature, salinity and Resolved oxygen within the
coastal waters along the south-west coast of Indiametween Ratnagiri
(17°OO*N,73°20'E) and cape comorin ( 8°10'N,77°30*E). Specific data
relating to the process of upwelling and sinking was collected mainly
to evaluate the extent and intensity of the vertical mixing processes
active in the area under study. The study also attempted possible correlations between the observed parameters and the occurrence and migrations of some of the major pelagic fishery resources such as sardine,mackerel and anchovy in the area under study
Description:
School of marine sciences, Cochin University of Science And Technology