Dr.Babu, C A; Jayakrishnan, P R((http://www.scirp.org/journal/acs), July , 2013)
[+]
[-]
Abstract:
Oceans play a vital role in the global climate system. They absorb the incoming solar energy and redistribute the energy through horizontal and vertical transports. In this context it is important to investigate the variation of heat budget components during the formation of a low-pressure system. In 2007, the monsoon onset was on 28th May. A well- marked low-pressure area was formed in the eastern Arabian Sea after the onset and it further developed into a cyclone. We have analysed the heat budget components during different stages of the cyclone. The data used for the computation of heat budget components is Objectively Analyzed air-sea flux data obtained from WHOI (Woods Hole Oceanographic Institution) project. Its horizontal resolution is 1° × 1°. Over the low-pressure area, the latent heat flux was 180 Wm−2. It increased to a maximum value of 210 Wm−2 on 1st June 2007, on which the system was intensified into a cyclone (Gonu) with latent heat flux values ranging from 200 to 250 Wm−2. It sharply decreased after the passage of cyclone. The high value of latent heat flux is attributed to the latent heat release due to the cyclone by the formation of clouds. Long wave radiation flux is decreased sharply from 100 Wm−2 to 30 Wm−2 when the low-pressure system intensified into a cyclone. The decrease in long wave radiation flux is due to the presence of clouds. Net heat flux also decreases sharply to −200 Wm−2 on 1st June 2007. After the passage, the flux value increased to normal value (150 Wm−2) within one day. A sharp increase in the sensible heat flux value (20 Wm−2) is observed on 1st June 2007 and it decreased there- after. Short wave radiation flux decreased from 300 Wm−2 to 90 Wm−2 during the intensification on 1st June 2007. Over this region, short wave radiation flux sharply increased to higher value soon after the passage of the cyclone.
Description:
Atmospheric and Climate Sciences, 2013, 3, 282-290
Baby, Joseph; Dr.Rajendra Prasad, P N(Cochin University Of Science And Technology, April 15, 1992)
[+]
[-]
Abstract:
The main benefit of Jeevan Saathi policy is that, it is a joint
life policy which covers the life of both husband and wife under a
single policy. And they also get double benefit if any one of them
dies during the term of the policy. The Jeevan Mitra policy is a
single life policy, the main advantage of which is that the dependents
get double benefit in case of normal death and triple benefit in case
of accidental death during the term of policy.
so both the policies have their own attractions but when compared
with the annual sales of other policies, the additional increase in
the sales of these policies are decreasing. It is a fact finding
study concerned with market performance of these two policies by conducting
a survey among the Jeevan Saathi and Jeevan Mitra policy
holders, and a thorough analysis of the various information or data
collected from them. This study is an attempt to present an integrated
picture of the main features of the policy holders who have
bought these policies, the major factors responsible for making them
purchase these policies, the various difficulties faced by them at present and further modification needed in the plans of these policies
according to the opinion of policy holders. For increasing accuracy
of the conclusions, information is also collected from Agents and
Development Officers by using interview schedule.
The main purpose of this study is to draw attention of LIC to
introduce new plans of policies taking into consideration the drawbacks
or defects of the existing policies and present needs of policy
holders. It will also help to make new plans in order to suit the
needs of more people who want to buy life insurance policies
Description:
School of Management Studies,
Cochin University of Science
and Technology
Babu, Jose T; Dr. Punnoose, K K(Cochin University of Science and Technology, November 3, 1989)
[+]
[-]
Abstract:
With the increase in population, housing and construction of various facilities have been a problem with urbanization. Having exhausted all the trouble free hand, man is nowon the lookout for techniques to improve areas which were originally considered uninhabitable. Thus this study is based on the nature and engineering behavior of soft clays covering long stretches of coastal line and methods to improve their geotechnical properties .The main aim of the present investigation is to study in detail the physical and engineering behavior of the marine clays of Cochin. While it is well known that the marine clays have been posing numerous problems to foundation engineers all along, the relevant literature reveals that no systematic and comprehensive study has been attempted to date. The: knowledge gained through the study is suitably used to improve these properties with appropriate additives.
Description:
School of Technology,Cochin University of Science and Technology
Pradeep,B; Dr.Joy, George(Cochin University of Science And Technology, November , 1986)
[+]
[-]
Abstract:
This thesis deals with the preparation and properties of two compounds of V-II family, viz.
bismuth telluride and bismuth oxide, in thin filmform. In the first chapter is given the resume of
basic solid state physics relevant to the work reported here. In the second chapter the different
methods of thin film preparationtia described. Third chapter deals with the experimental techniques used for preparation and characterization of the films. Fourth chapter deals with the preparation and propertiesof bismuth telluride films. In next four chapters, the preparation and properties of bismuth oxide films are discussed in detail. In the last chapter the use of Bi205 films in the fabrication of Heat mirrors is examined and discussed.
Description:
Department of physics, Cochin University of Science And Technology
Benny, Mathews Abraham; Dr.Babu,Jose T(Cochin University Of Science And Technology, November 23, 1993)
[+]
[-]
Abstract:
With the advent of urbanisation and consequent
search for more and more habitable land, it was imperative
that the large tracts of marine clays, considered inhabitable
earlier, had to be reclaimed and developed. These marine
clays, wellknown for its high compressibility and poor shear
strength, posed numerous problems to the builders and Cochin
was no exception. It is only less than a decade since active
research work was initiated on marine clays in general and
Cochin marine clays in particular. Eventhough some systematic
studies are available on compressibility characteristics,
attempts to study the shear strength aspects and development
of techniques to improve it have been very limited. This work
is an investigation on the consolidation and shear strength
characteristics of Cochin marine clays including methods to
improve the same
Description:
School of Engineering
Cochin University of
Science and Technology
Kevin, S; Dr.Rajendra Prasad, P N(Cochin University Of Science And Technology, June 20, 1988)
[+]
[-]
Abstract:
. The cotton mill industry is one of the important medium and
large-scale industries in the State of Kerala. Due to the widespread
development of the handloom industry in the State, there is an environment
conducive to the growth of cotton spinning mills which produce
yarn, the raw material required by the handloom industry. New spin—
ing mills are being commissioned. But the performance of the existing
cotton spinning and weaving mills in the State is not quite satisfactory.
Hence an analysis has been carried out into the profitability
and financial position of the industry in Kerala. The objective
of the study is to make a financial analysis of the industry covering
various aspects such as cost structure, productivity, asset structure,
financial structure and working capital management.
Description:
School Of Management Studies
Cochin University Of Science And Technology
Jayaraj, M K; Vallabhan, C P G(IOP Publishing, 1989)
[+]
[-]
Abstract:
The method of preparation of ZnS phosphors doped with praseodymium and copper is given. The electroluminescence (EL) spectrum of ZnS:Pr,Cl has two broad bands at 470 and 570 nm. ZnS:Cu,Pr,Cl gives white emission with spectral peaks at 470, 520, 570 and 640 nm. The EL spectra of both types of phosphor exhibit a conspicuous colour shift as the frequency of the excitation voltage is varied. Detailed investigations show that the relative intensities of spectral peaks are strongly dependent on the frequency of the excitation voltage. The colour shift is explained on the basis of the Schon-Klasens model.
George, Mathew; Dr.Kuriakose, A P(Cochin University of Science and Technology, December , 1989)
[+]
[-]
Abstract:
The thesis entitled Study on Accelerators in Rubber Vulcanization with Special Reference to the Binary Systems Containing Substituted Dithiobiurets. It includes a detailed study on the binary accelerator systems containing substituted dithiobiurets in natural rubber and NR latex and dithiobiurets in SBR and NR-SBR blends vulcanization systems. It deals with the experimental procedure adopted for the preparation of DTB-II and DTB-III; the procedure for compounding and vulcanization and determination of physical properties like modulus, tensile strength, elongation at break, hardness, compression set, heat build up etc. The results indicate that there is efficient acceleration activity of the dithiobiurets in the vulcanization of natural rubber latex containing TMT. The study of dithiobiurets in natural rubber and NR latex reveal that they are having definite accelerating effect in SBR vulcanization systems.
Description:
Department of Polymer Science
and Rubber Technology
Cochin University of Science
and Technology
Marina, Aloysius; Dr. Parameswaran, K(Space Physics Laboratory, Vikram Sarabhai Space Centre, January , 2010)
[+]
[-]
Abstract:
The present study brings out the influence of transport dynamics on the
aerosol distribution over the Indian region at a few selected geographically distinct
locations. Over the Bay of Bengal the dominant pathway of aerosol transport during the
pre-monsoon period is through higher altitudes (~ 3 km); directed from the Indian main
land. In contrast, the aerosol pathways over the Arabian Sea during the same period are
quite complex. They are directed from geographically different environments around the
ocean through different altitudes. However in general, the day-to-day variability of AOD at
both these regions is significantly influenced by the features of atmospheric circulation
especially, the wind convergence at higher altitudes (around 3 km). Over the Ganga Basin
during the winter period, the wind convergence at lower altitudes (< I km) govems the
shon term variations in AOD, while the mean AOD distribution at this location is mainly
governed by the local anthropogenic sources.