Krishna Mohan,K S; Dr.Mohanakumar,K(Cochin University Of Science And Technology, February , 2013)
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Abstract:
Tropical cyclones genesis, movement and intensification are highly dependent
on its environment both oceanic and atmospheric. This thesis has made a detailed
study on the environmental factors related to tropical cyclones of North Indian
Ocean basin. This ocean basin has produced only 6% of the global tropical
cyclones annually but it has caused maximum loss of human life associated with
the strong winds, heavy rain and particularly storm surges that accompany severe
cyclones as they strike the heavily populated coastal areas.
Atmospheric factors studied in the thesis are the moisture content of the
atmosphere, instability of the atmosphere that produces thunderstorms which
are the main source of energy for the tropical cyclone, vertical wind shear to
which cyclones are highly sensitive and the Sub-Tropical westerly Jetsteram and
its Asian high speed center. The oceanic parameters studied are sea surface
temperature and heat storage in the top layer of the ocean. A major portion of the
thesis has dealt with the three temporal variabilities of tropical cyclone frequency
namely intra-seasonal (mainly the influence of Madden Julian Oscillation), inter-
annual (the relation with El Nino Southern Oscillation) and decadal variabilities.
Regarding decadal variability, a prominent four decade oscillation in the frequency
of both tropical cyclones and monsoon depressions unique to the Indian Ocean
basin has been brought out.
The thesis consists of 9 chapters.
Description:
Department of Atmospheric Sciences, Cochin University of Science
and Technology,
Latha, C; Dr.Ammini, Joseph(Cochin University of Science and Technology, April , 1998)
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Abstract:
In the last decades considerable headway has been made in research and development
of phyto-chemical pesticides. The most notable recent success is the commercial
development of neem products for insect control. The present investigation on
Environmentally Compatible Phyto-Chemical Larvicides for Mosquito Control was
undertaken to identify plants of the locality with potential larvicidal activity on mosquito
larvae. This has been achieved by screening 17 plant species against four mosquito species.
The observation and data are compiled in six chapters .
Description:
School of Environmental Studies, Cochin University of Science and Technology
May,Mathew; Dr.Jose, Payyappilly T(Cochin University Of Science And Technology, August 31, 2009)
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Abstract:
The base concept from which the entire research problem emerged is as
follows:
Lack of spatial planning and effective development management system lead
to urban sprawl with non-optimal density of population to support urban
infrastructure on the one side causing a lesser quality of life in urban areas. On the
other side it causes loss of productivity of natural ecosystems and agricultural areas
due to disturbance to the ecosystems. Planned compact high density development
with compatible mixed land use can go a long way in achieving environmental
efficiency of development management system.
Description:
School Of Management Studies
Cochin University Of Science And Technology
Pereira, Gladys Myrtle; Poduval, P R(Cochin University of Science And Technology, October , 1985)
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Abstract:
The present study focuses attention on the social phenomenon of environmental protection pressure groups in Kerala. A detailed historical background of environmental protection pressure groups at international and national scenes as background for this study .Emphirical studies of environmental protection pressure groups in Kerala with special reference to industrial pollution is dicussed in detail . The main objective of the study is to identify the factors that make pressure groups succeed or fail in achieving their set objectives.The factors include the structure and strategies of social pressure groups and the support they receive from the environment.
Description:
School of management studies, Cochin University of Science And Technology
Benjamin, P V; Dr.Balakrishnan, K P; Dr.Harindranathan Nair, M V(Cochin University Of Science And Technology, March , 1998)
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Abstract:
In the case of urban centres of the developing countries, corrective measures
for the environmental consequences of spontaneous or wrongly planned
developments are often prohibitively costly. Hence environmentally planned
development alone appears to be the solution for which, a compre-hensive
assessment of all the resources is an essential pre—requisite. An under-standing
of the prevailing environmental conditions is essential for the effective
management and execution of programmes for sustainable development.
The present work is a modest attempt at assessing the environmental
resources of Cochin, the industrial and business capital of Kerala and a fast
developing metropolis.
Description:
School of Environmental Studies, Cochin University of Science
and Technology
Antony,C A; Dr.Sankaranarayanan, K C(Cochin University of Science and Technology, October 7, 1987)
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Abstract:
The present study consists of nine chapters including the introductory chapter. Chapter II makes a brief review of environmental literature and examines various measures adopted at the global level to protect the environment. The environmental problems often transgress national
sovereignity and geographical boundaries. Therefore, attempts must be made at the national and international levels to protect the environment, the resources of which are the common property of mankind. The protection of the national environment from the ancient till the present forms the content of Chapter III. These chapters together provide a background to understand the issues analysed in the subsequent chapters. Carefully worked out theoretical framework is a pre-requisite for the successful study of a complex subject. Some of the theoretical issues of ‘environomics’ are examined in Chapter IV. The theoretical issues involved in estimating the costs and benefits of environmental protection constitute the theme of Chapter V. The state of environment in Eloor-Edayar Industrial belt andthe impact analysis of pollution of the area are discussed in Chapter VI and VII respectively. Chapter VIII makes the financial estimate of environmental protection of the project And finally, Chapter IX presents the findings of the study
Description:
Department of
Applied Economics, Cochin University of Science and Technology
Damodaran, Nambudiri D; Dr.George, Philip; Dr.Gopakumar, K(Cochin University of Science and Technology, November 30, 1987)
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Abstract:
An attempt has been made in this study to screen some fish muscle enzymes to assess their potential worth in testing the degree of freshness of fish. A problem with routine enzyme activity determinations is the complexity of the method of enzyme assay. Hence, in the present study as far as possible simple assay techniques were adopted. Several species were screened to assess the possibility of employing this procedure on a large scale. It is hoped that findings of this study will lead to the development of meaningful criteria in testing the freshness of fish. This thesis has been divided into five chapters
Description:
Division
of Marine Biology, Microbiology and Biochemistry, School of Marine Sciences, Cochin University ofScience and Technology
Sunil Jose,T; Dr.Rani,Joseph(Cochin University of Science & Technology, November , 2006)
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Abstract:
A detailed study of the blends of ethylene-propylene-diene rubber (EPDM) and
chlorobutyl rubber (CIIR) is proposed in this study. These blends may find
application in the manufacture of curing diaphragms/curing envelopes for tire
curing applications. EPDM possesses better physical properties such as high heat
resistance, ozone resistance, cold and moisture resistance, high resistance to
permanent defonnation, very good resistance to flex cracking and impact. Because
of the low gas and moisture penneability, good weathering resistance and high
thermal stability of CIIR, blends of EPDM with CIlR may be attractive, if
sufficient mechanical strength can be developed. Although a lot of work has been
done on elastomer blends, studies on the blends of EPDM and CIIR rubbers are
meagre. Hence in this investigation it is proposed to make a systematic study on
the characteristics of EPDM and CIIR rubber blends.The mechanical and physical properties of an elastomer blend depend mainly on the
blend compatibility. So in the first part of the study, it is proposed to develop
compatible blends of EPDM with CIIR. Various commercial grades of ethylenepropylene-
diene rubber are proposed to be blended with a specific grade of chlorobutyl
rubber at varying proportions. The extent of compatibility in these blends is proposed
to be evaluated based on their mechanical properties such as tensile strength, tear
strength and ageing resistance. In addition to the physical property measurements,
blend compatibility is also proposed to be studied based on the glass transition
behavlour of the blends in relation to the Tg's of the individual components using
Differential Scanning Calorimetry (DSC) and Dynamic Mechanical Analysis (DMA).
The phase morphology of the blends is also proposed to be investigated by Scanning
Electron Microscopy (SEM) studies of the tensile fracture surfaces. In the case of incompatible blends, the effect of addition of chlorosulfonated polyethylene as a
compatibiliser is also proposed to be investigated.In the second part of the study, the effect of sulphur curing and resin curing on the
curing behaviour and the vulcanizate properties of EPDM/CIIR blends are planned
to be evaluated. Since the properties of rubber vulcanizates are determined by their
network structures, it is proposed to determine the network structure of the
vulcanizates by chemical probes so as to correlate it with the mechanical
properties.In the third part of the work, the effect of partial precuring of one of the
components prior to blending as a possible means of improving the properties of
the blend is proposed to be investigated. This procedure may also help to bring
down the viscosity mismatch between the constituent e1astomers and provide
covulcanization of the blend.The rheological characteristics and processability of the blends are proposed to be
investigated in the last part of the study. To explore their possible applications, the
air permeability of the blend samples at varying temperatures is proposed to be
measured. The thermal diffusivity behaviour of EPDM/CIlR blends is also
proposed to be investigated using novel laser technique. The thermal diffusivity of
the blends along with the thermal degradation resistance may help to determine
whether the blends are suitable for high temperature applications such as in the
manufacturing of curing envelope.
Description:
Deparhnent of Polymer Science and Rubber Technology,
Cochin University of Science and Technology
Rajeev, D(Cochin University of Science and Technology, December 1, 1998)
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Abstract:
This thesis is a study of -Equality of Opportunity in Public Employment : Judicial Perspectives on Backwardness. This study is an attempt to evaluate the concept of backwardness and equality of opportunity in employment and to assess the judicial perspectives in relation to them. The study reveals that the recent review petition of the Constitution Bench did not assess the decision of Chakradhar and its import. The study reveals that the Indian judiciary could successfully locate and apply the above principles. It was-Justice Subba Rao's nascent attempt in Devadasan which marked the starting point of such a jurisprudential enquiry. Later Thomas developed the thoughts by a reading new meaning and content to equality provisions of the Constitution which included the elimination of inequalities as the positive content of Articles 14 and 16(1) and elevated reservation provision to the same status of equality principles under the Constitution. Soshit, Vasanth Kumar and Mandal supplemented further to the jurisprudential contents. In this process, the courts were guided by the theories of John Rawls, David Miller, Ronald Dworkin, Max Weber and Roscoe Pound. Thus there was a slow and steady process of transformation of the reservation provision. From an anti-meritarian, unenforceable and enabling provision, it reached a stage of equally relevant and explanatory part of fundamental right to equality. Mandal viewed it as a part of sharing of State power. Though this can be seen by rereading and re-joining thoughts of judges in this regard, the judicial approach lacks coherence and concerted efforts in evolving a jurisprudential basis for protective discrimination. The deliberations of the framers of the Constitution reveals that there was much confusion and indeterminacy with regard to the concept of Backwardness. The study shows that the judiciary has been keeping intact the framers’ expectation of having a reasonable quantum of reservation, preventing the undeserved sections from enjoying the benefit, avoiding its abuse and evolving a new criteria and rejecting the old ones.
Description:
School of Legal Studies, Cochin University of Science and Technology
Mariamma, Chacko; Dr.Poulose Jacob, K(Cochin University of Science & Technology, August , 2011)
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Abstract:
Embedded systems are usually designed for a single or a specified set of
tasks. This specificity means the system design as well as its hardware/software
development can be highly optimized. Embedded software must meet the
requirements such as high reliability operation on resource-constrained
platforms, real time constraints and rapid development. This necessitates the
adoption of static machine codes analysis tools running on a host machine for
the validation and optimization of embedded system codes, which can help
meet all of these goals. This could significantly augment the software quality
and is still a challenging field.Embedded systems are usually designed for a single or a specified set of
tasks. This specificity means the system design as well as its hardware/software
development can be highly optimized. Embedded software must meet the
requirements such as high reliability operation on resource-constrained
platforms, real time constraints and rapid development. This necessitates the
adoption of static machine codes analysis tools running on a host machine for
the validation and optimization of embedded system codes, which can help
meet all of these goals. This could significantly augment the software quality
and is still a challenging field.Embedded systems are usually designed for a single or a specified set of
tasks. This specificity means the system design as well as its hardware/software
development can be highly optimized. Embedded software must meet the
requirements such as high reliability operation on resource-constrained
platforms, real time constraints and rapid development. This necessitates the
adoption of static machine codes analysis tools running on a host machine for
the validation and optimization of embedded system codes, which can help
meet all of these goals. This could significantly augment the software quality
and is still a challenging field.Embedded systems are usually designed for a single or a specified set of
tasks. This specificity means the system design as well as its hardware/software
development can be highly optimized. Embedded software must meet the
requirements such as high reliability operation on resource-constrained
platforms, real time constraints and rapid development. This necessitates the
adoption of static machine codes analysis tools running on a host machine for
the validation and optimization of embedded system codes, which can help
meet all of these goals. This could significantly augment the software quality
and is still a challenging field.This dissertation contributes to an architecture oriented code validation,
error localization and optimization technique assisting the embedded system
designer in software debugging, to make it more effective at early detection of
software bugs that are otherwise hard to detect, using the static analysis of
machine codes. The focus of this work is to develop methods that automatically
localize faults as well as optimize the code and thus improve the debugging
process as well as quality of the code.Validation is done with the help of rules of inferences formulated for the
target processor. The rules govern the occurrence of illegitimate/out of place
instructions and code sequences for executing the computational and integrated peripheral functions. The stipulated rules are encoded in propositional logic
formulae and their compliance is tested individually in all possible execution
paths of the application programs. An incorrect sequence of machine code
pattern is identified using slicing techniques on the control flow graph
generated from the machine code.An algorithm to assist the compiler to eliminate the redundant bank
switching codes and decide on optimum data allocation to banked memory
resulting in minimum number of bank switching codes in embedded system
software is proposed. A relation matrix and a state transition diagram formed
for the active memory bank state transition corresponding to each bank
selection instruction is used for the detection of redundant codes. Instances of
code redundancy based on the stipulated rules for the target processor are
identified.This validation and optimization tool can be integrated to the system
development environment. It is a novel approach independent of
compiler/assembler, applicable to a wide range of processors once appropriate
rules are formulated. Program states are identified mainly with machine code
pattern, which drastically reduces the state space creation contributing to an
improved state-of-the-art model checking. Though the technique described is
general, the implementation is architecture oriented, and hence the feasibility
study is conducted on PIC16F87X microcontrollers. The proposed tool will be
very useful in steering novices towards correct use of difficult microcontroller
features in developing embedded systems.
Description:
Department of Computer Science,
Cochin University of Science and Technology
Ajalesh,Nair,B; Dr. Philip, Kurian; Dr.Rani,Joseph(Cochin University Of Science And Technology, July 15, 2013)
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Abstract:
In the present study, an attempt has been made to prepare composites
by incorporating expanded graphite fillers in insulating elastomer matrices
and to study its DC electrical conductivity, dielectric properties and
electromagnetic shielding characteristics, in addition to evaluating the
mechanical properties. Recently, electronic devices and components have
been rapidly developing and advancing. Thus, with increased usage of
electronic devices, electromagnetic waves generated by electronic systems
can potentially create serious problems such as malfunctions of medical
apparatus and industry robots and can even cause harm to the human body.
Therefore, in this work the applicable utility of the prepared composites as
electromagnetic interference (EMI) shielding material are also investigated.
The dissertation includes nine chapters
Description:
Department of Polymer Science and Rubber Technology,Cochin University Of Science And Technology