Ritty J, Nedumpara; Thomas, K J; Jayasree, V K; Girijavallabhan, C P; Nampoori, V P N; Radhakrishnan, P(Optical Society of America, July 20, 2007)
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Abstract:
The results of a brief investigation of the amplified spontaneous emission and lasing characteristics of Coumarin 540 dye in as many as ten different solvents are reported. It has been found that C 540 dye solutions contained within a rectangular quartz cuvette give laser emission with well resolved equally spaced modes when pumped with a 476 nm beam. The modes were found to originate from the subcavities formed by the plane-parallel walls of the cuvette containing the high-gain medium. While the quantum yield remains a decisive factor, a clear correlation between the total width of the emission spectra and the refractive indices of the solvents of the respective samples has been demonstrated. The well-resolved mode structure exhibited by the emission spectra gives clear evidence of the lasing action taking place in the gain medium, and the number of modes enables us to compare the gain of the media in different samples. A detailed discussion of the solvent effect in the lasing characteristics of C540 in different solutions is given.
Ramkumar; Kannan(Cochin University of Science and Technology, June , 2014)
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Abstract:
Centrality is in fact one of the fundamental notions in graph theory
which has established its close connection with various other areas like Social
networks, Flow networks, Facility location problems etc. Even though
a plethora of centrality measures have been introduced from time to time,
according to the changing demands, the term is not well defined and we
can only give some common qualities that a centrality measure is expected
to have. Nodes with high centrality scores are often more likely to be very
powerful, indispensable, influential, easy propagators of information, significant
in maintaining the cohesion of the group and are easily susceptible
to anything that disseminate in the network.
Bindu, V; Dr.Nandakumaran,V M(Cochin University of Science and Technology, December , 2002)
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Abstract:
Chaos is a subject oftopical interest and, studied in great detail in relation to its
relevance in almost all branches of science, which include physical, chemical,
and biological fields. Chaos in the literal sense signifies utter confusion, but the
scientific community has differentiated chaos as deterministic chaos and white
noise. Deterministic chaos implies the complex behaviour of systems, which
are governed by deterministic laws. Behaviour of such systems often become
unpredictable in the long run. This unpredictability arises from the sensitivity of
the system to its initial conditions. The essential requirement for ‘sensitivity to
initial condition’ is nonlinearity of the system. The only method for
determining the future of such systems is numerically simulating its final state
from a set ofinitial conditions.
Synchronisation
Description:
International School of Photonics, Cochin University of Science and Technology
Ajoy,Mathew; Dr.Sankaranarayanan, K C(Cochin University of Science and Technology, March 27, 1987)
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Abstract:
In the introductory chapter of the dissertation
the importance of coconut cultivation for the economy
of Kerala State has been highlighted. The second and
third chapters contain analysis of changes in area,
production and productivity of coconut cultivation in
the state. The use of modern agricultural practices by
coconut farmers is analysed in chapter IV. Cost of
production and profitability are dealt with in chapter V,
while the issues relating to coconut prices and marketing
are presented in chapter VI. Diseases affecting
coconut is the theme covered under chapter VII ,
Summary and conclusions are provided at the end.
Description:
Department of Applied Economics, Cochin University of Science and Technology
Krishnan Nampoothiri, K; Dr.Rajendra Prasad, P N(Cochin University of Science And Technology, January , 1987)
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Abstract:
The co-operative credit structure in a state
set up consists of 3 tiers — Primary Societies at the base,
District Co-operative Banks at the middle and State Cooperative
Bank at the top. But, some societies at the
primary level are governed by, in addition to Co-operative
Societies Act, the Banking Regulation Act. Thus they are
under dual control. In addition, they are working under
the direct purview of Reserve Bank of India. The scope
of this study is restricted to such Primary Societies,
District Co-operative Banks and State Co-operative Bank.
For the evaluation of the working of Co-operative
Banks, the board of directors and staff were interviewed
with the help of pre-constructed and pre-tested interview
schedules. However, the share holders and customers were
not interviewed mainly because almost all respondents
were reluctant to provide copies of an exhaustive list
of share holders and non-share holder customers, for
the purpose of maintaining secrecy. This being an
individual work, it was found physically and financially
very difficult to extend the study so as to cover the
share holders and non-share holder customers. Limitations
of time were also responsible for restricting this study.
The period of study was restricted to 1980-'81
to 1983-'84 as the data relating to earlier periods were
firstly not available from all banks and secondly the
prior data was considered out of date for the purpose of
the study.
Description:
School of management studies, Cochin University of Science And Technology
Dharma Rajan, P G; Dr.Rajendra Prasad, P N(Cochin University of Science And Technology, June , 1984)
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Abstract:
Since the world demand for cashew kernels has been rising steadily for several years in the past, conferring significant price increase the processing of cashew remains a highly profitable lndustry. India being the earliest and largest supplier of cashew kernels in the world market it is our prestigious obligations to reestablish her pristine monopoly. Further the added importance ot the indutry in the Socio economic context of the State of Kerala makes various measures impervative in order to bring back to the industry its pristine glory at the late sixties to give a face lift and to stabilize the industry. This present study adopts a comprehensive frame work of
analysis compassing the major issues involved in the cultivation, distribution, import, processing and marketing of cashew undcr the private and public sector, migration of the industry and the financial requirements of the industry.
Description:
School of management studies, Cochin University of Science And Technology
Joy, E C; Dr.Joy, George(Cochin University Of Science And Technology, March 27, 1980)
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Abstract:
This thesis consists of a study of the effect of electrode films and overlayer films on the electrical properties of certain metal films. The films have been prepared on glass substrates by thermal evapouration in a vaccum 10 terr. The properties of Al films on Ag, Al,Au and Cu films on In electrodes ,and Bi/Ag bilayer films have been studied. The influence of annealing electrodes at higher temperature on the electrical properties of metal films has also been investigated. Further the effect of varying layer thickness in the bilayer films ,both annealed at higher temperature and annealed at room temperature have been examined.
Description:
Department Of Physics,Cochin University Of Science And Technology
Rani, Joseph(OPA (Overseas Publishers Association), July 15, 1994)
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Abstract:
The mechanical properties of filled natural rubber latex vulcanizates were found to be improved by the
addition of polyethylene glycols of different molecular weight and glycerol. There is a slight reduction
in the optimum cure times of the compounds containing PEG/Glycerol. The morphology study shows
that the filler distribution is more uniform in the compounds containing PEG/Glycerol.
Rajan Nair, N; Dr.Parameswaran, Nair N(Cochin University of Science And Technology, October , 1983)
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Abstract:
This study presents a detailed investigation of the origin and development of
regulations in agricultural marketing in Tamil Nadu. It evaluates the method and
process of regulation practised through the orgahisation of a chain of regulated
markets in the State. The study also examines in detail the conceptual frame
work behind state intervention and show the original concept has been modified
subsequently to suit the changed conditions during the post-independence era
of planning for economic development
Specific objectives explained in the present study include the following: viz,
a) The historical aspects that necessitated state intervention in agricultural
marketing in the form of organising regulated markets and their evolution,
b) The conceptual and organisational bases of regulated markets in Tamil Nadu.
c) The impact of such regulations on the existing trade channels or systems.168
d) The performance and efficiency of regulated markets and their achievements.
The study also has suggested some remedial measures to reorganise the
present organisational pattern of regulated marketing in Tamil Nadu.
Description:
School of Management, Cochin University of Science And Technology
Nandakumar, A; Dr.Murthy, A V S(Cochin University of Science and Technology, November , 1983)
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Abstract:
The objective of the present study is to elucidate the hydrological conditions of the shelf waters along the southern half or the west coast of India and their relation to the sooplankton bionase and pelagic fish resources. Data from six hydrography-plankton sections worked during the 1972-75 period of cape camerin. Quilon. cochin. Kasaragod. Karwar and kotnagiri formed the basis of the present study.Stations were fixed along the transects 10 nautical miles apart. Starting with the first station at around 15 metre depth and were usually occupied 5 to 8 times in an year at an interval of about 6 weeks. Data relating to oil sardines and macherel fisheries were availed from published information relating to the period mainly of the Central Marine fisheries Research Institute. The range of different parameters namely temperature. salinity. density and dissolved oxygen at different depths and their sloping features against the coast are discussed. Three seasons. namely south-west monsoon (summer monsoon). north-east monsoon (winter monsoon) and hot weather season are designated and data of the core months of each of these seasons considered in the study.
Unnikrishnan Kartha, N R; Dr. Jagathy Raj, V P(Cochin University of Science & Technology, January , 2010)
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Abstract:
The research work which was carried out to study the impact of
ISO 9001: 2000, in selected organisations in Kerala, spread over various types
of activities, such as fabrication of aero space hardware, glass ware,
construction industries, health care units etc, encompassing, government and
private enterprises, public sector undertakings, small and medium scale
industries and research and development establishments. The ambience, work
culture and collaboration prevalent in these organisations were varying on
account of the environment in which they have been working. Fifty percent of
the organizations selected for the study had obtained the
ISO 900 I: 2000-certification since seven years or more. The process of study
undertaken could invoke interest in the respondents, when a brief explanation
on the purpose and need of the study was given to them prior to conducting the
survey. There has been total cooperation from the management and the
employees of all the organisations for the conduct of the study. Personal
discussions were held with the senior management to draw their total support
and involvement for the study.
Description:
School of Management Studies, Cochin
University of Science and Technology
Shibu, Ray S; Dr.Baby, M D(Cochin University of Science and Technology, June 6, 2009)
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Abstract:
Information communication technology (IC T) has invariably brought about
fundamental changes in the way in which libraries gather. preserve and disseminate
information. The study was carried out with an aim to estimate and compare the
information seeking behaviour (ISB) of the academics of two prominent universities of
Kerala in the context of advancements achieved through ICT.
The study was motivated by the fast changing scenario of libraries with the
proliferation of many high tech products and services. The main purpose of the study
was to identify the chief source of information of the academics, and also to examine
academics preference upon the form and format of information source. The study also
tries to estimate the adequacy of the resources and services currently provided by the
libraries.The questionnaire was the central instrument for data collection. An almost census method was adopted for data collection engaging various methods and tools for
eliciting data.The total population of the study was 957, out of which questionnaire was distributed to 859 academics. 646 academics responded to the survey, of which 564 of them were sound responses. Data was coded and analysed using Statistical Package for Social Sciences (SPSS) software and also with the help of Microsofl Excel package. Various statistical techniques were engaged to analyse data. A paradigm shift is evident by the fact that academies push themselves towards information in internet i.e. they prefer electronic source to traditional source and the very shift is coupled itself with e-seeking of information. The study reveals that ISB of the academics is influenced priman'ly by personal factors and comparative analysis shows that the ISB ofthc academics is similar in both universities. The productivity of the academics was tested to dig up any relation with respect to their ISB, and it is found that productivity of the academics is extensively related with their ISB. Study also reveals that the users ofthe library are satisfied with the services provided but not with the sources and in conjunction, study also recommends ways and means to improve the existing library system.
Description:
Department of Computer Science, Cocbin University of Science and Technology
Kuriakose, K K; Dr.Ranganathan, N(Cochin University of Science and Technology, June 28, 1995)
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Abstract:
The study is designed to gather, record, analyse and critically evaluate
data on natural rubber production, consumption and marketing in Kerala. The
scope of the study also covers the processing of natural rubber by rubber growers,
especially small growers. Taking into consideration Kerala’s supremacy in natural
rubber cultivation, a detailed study of marketing channels of natural rubber in Kerala,
by giving special reference to co-operative rubber marketing has been given
importance. Attempt has also been made to collect secondary data of the last 15
years
Description:
School of Management Studies, Cochin University of Science
and Technology
Ramaswamy,V S; Dr.Parameswaran, Nair N(Cochin University of Science And Technology, April , 1983)
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Abstract:
This is a descriptive and analytical study. It investigates
how Fertilisers are marketed in India. It describes and evaluates the
system of fertiliser marketing prevalent in the country at the time
of this study (1979-82). The study, as the title will indicate, has
been conceived on a large canvass and in very broad and generalised
terms. Such a large framework has been chosen with the intention of
investigating the task of Fertiliser marketing in its totality
Description:
School of Management Studies, Cochin University of Science And Technology