Srinivasa, Gopal T K; Dr. Hridayanathan, C(Cochin University of Science and Technology, April 28, 1993)
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Abstract:
Packaging is important not only in extending the shellife of fish and fishery products but also improving their marketability. In the recent years, significant development have taken place in the packaging industry. During the past decade in India, there is almost a packaging revolution with the availability of variety packaging materials, thus generating better packaging consciousness in other producer/manufacturing industries. But unfortunately, such realisation is not forthcoming in the fisheries sector and packaging techniques for local and export trade continues to be on traditional lines with their inherent drawbacks and limitations. Better packaging ensures improved quality and presentation of the products and ensures higher returns to the producer. Among several packaging materials used in fishery industry, ISI specifications had been formulated only for corrugated fibre board boxes for export of seafoods and froglegs. This standard was formulated before containersiation came into existance in the export of marine products. Before containerisation, the standards were stringent in view of the rough handling, transportation and storage. Two of the common defects reported in the master cartons exported from India are low mechanical strength and tendency to get wet. They are weakened by the deposits of moisture caused by temperature fluctuations during loading, unloading and other handling stages. It is necessary to rectify the above defects in packaging aquatic products and hence in the present study extensive investigations are carried out to find out the reasons for the damage of master cartons, to evolve code of practice for the packaging oi frozen shrimp for exports, development of alternative style of packaging for the shipping container, development of suitable consumer packaging materials for fish soup powder, cured dried mackeral, fish pickles in oil and frozen shrimp. For the development of suitable packaging materials, it is absolutely essential to know the properties of packaging materials, effect of different packaging materials on theirshelf life and their suitability for food contact applications.
Description:
Department
of Industrial Fisheries, Cochin University of Science and
Technology
Rani, Rajan; Dr.Radhakrishnan, K V(Cochin University Of Science And Technology, April , 2013)
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Abstract:
The reactions involving fulvenes and its derivatives have received a great
deal of attention over the years in synthetic organic chemistry. Functionalizations
of fulvenes provide versatile and powerful approaches to various polycyclic
systems and natural products. They serve as versatile intermediates in the
construction of various ring systems through inter- as well as intramolecular
cycloadditions. Compared to the rich literature on the cycloaddition reactions of
pentafulvenes, much less attention has been paid to the synthetic utilization of
their cycloadducts. Tactical manipulations on the chosen adduct offer the
prospects for designing a variety of useful molecular skeletons.
Addition of heterodienophiles to fulvenes offers an efficient strategy towards
the synthesis of azabicyclic olefins. However, there have been no serious attempts
to study the synthetic utility of these substrates. In this context and with the
intention of utilizing pentafulvenes towards synthetically important molecules, author
decided to explore the reactivity of pentafulvene derived azabicyclic olefins. Our
attention was focused on the synthetic potential associated with the ring opening
of fulvene derived bicyclic hydrazines under palladium catalysis. It was envisioned
that the desymmetrization of these adducts using various soft nucleophiles will
provide a novel access to synthetically and biologically important alkylidene
cyclopentenes. The investigations along this line form the focal theme of this
thesis entitled “PALLADIUM CATALYZED CARBONCARBON/
CARBON-HETEROATOM BOND FORMATION REACTIONS
UTILIZING PENTAFULVENE DERIVED BICYCLIC HYDRAZINES
Description:
Organic
Chemistry Section, National Institute for Interdisciplinary Science and Technology
Sunny, George; Dr.Mary,Joseph(Cochin University of Science And Technology, 1991)
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Abstract:
Paper industry is one of the oldest and largest industries in
Kerala. Despite the developments in the industry in terms of
growth in output , value added and employment generation, many of
the units face grave problems. Irrespective of the size of the
plant, the problems of the industry are general in nature. The
problems are galore in the supply, not the demand side. Amomg the
problems, the important ones are: raw material scarcity, energy
deficiency and obsolete technology. Further, the industry is
subject to many controls by the Government — price control,
product control and raw materials control — which result in the
dwindling of profits and investments. Equally important are the
reservations against the industry for polluting the environment byeffluent disposal on the one hand and affecting ecological balance
by depleting the existing forest on the other.
Apart from the large, medium and small pulp and paper mills,
there are about 30 hand made paper units in Kerala which can be
categorised as village and cottage industry. Almost all of these
units began at the initiative and support of Khadi and Village
Industries Commission. The primary purpose of these units is
employment generation, and not profit making. Currently many of
these units are in the red and many others are on the verge of
closure. Therefore, a separate analysis of the growth
performance, and problems and prospects of the hand made paper
industry has also been attempted. It is analysed separately
because of the very small size of the hand made paper units
Description:
Department of Applied Economics, Cochin University of Science and Technology
Jalajakumar,V S; Dr.Kuttyamma, V J(Cochin University of Science And Technology, August , 1988)
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Abstract:
In order to check the damage caused by the parasites, even though it is difficult in open waters, a proper understanding of the seasonal variation in the distribution of the parasite and other factors like age of the host, sex of the host, which affect distribution of parasite is a must. Although several workers have carried out investigations on the taxonomy of metazoan parasites of marine and brackish water Fishes of India, very little attempt is made to correlate such investigations with the host and the environment. In this thesis such an attempt is made by the researcher.
In chapter one the literature related to the prevalence, mean intensity of infection, and histopathological changes caused by the metazoan parasites, in particular by helminths, copepods and isopods, was reviewed. Chapter two contains observations on the distribution pattern of parasites in relation to the season, sex, and size of the host. It was found that the prevalence rate of radiorynchus_indicus infecting the alimentary canal of Tachysurugs mgacuglatus, Ergasilus sp. infecting the gills of T maculatus, and Lernaeeniicus ramosus found on the body surface of Qeimgipteirfugs jagonicus was higher during monsoon season. But agarna malayi found in the opercular chamber and Ehilometra cephalus infecting the gonads of valamugil speiglari showed a higher prevalence rate during the postmonsoon season. This was discussed on the basis of the hydrographical characteristics prevailing in the study area during the three different seasons.
It was also observed that the sex of the host did not influence significantly the distribution pattern of the parasites. The reasons for this were also discussed. Invariably, the size of the host
was found to influence the parasite distribution pattern. It was observed that the prevalence rate showed an increase with increase in size of the fish. This was discussed on the basis of food habits of the host, along with other aspects An attempt was made in chapter three to study the histopathological effects of‘ the various parasites on their respective sites of attachments on host Fishes. It was found that except Rhadinorhyhchugs indicus, all other parasites produced damages of varying intensity, in the form of hypertrophy, rhyperplasia, haemorrhage, tissue disruption and ulcers. Interestingly, E. indicus, an acantho— cephalid with a powerful proboscis for attachment was found not to cause any serious damage to the intestine of the host Fish. All these aspects are included in the third and final chapter of the thesis.
Description:
School of marine sciences, Cochin University of Science And Technology
Subhash, Chandra Soni(Cochin University of Science and Technology, April , 1986)
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Abstract:
The thesis embodies the results of the studies carried out on certain diseases affecting the commercially important penaeid prawns in the capture and culture fisheries of the southwest and southeast coasts of india during october, 1981 to april 1985.initially a survey is conducted to obtain information and to understand the commom diseases and abnormalities occurring in the penaeid prawms in nature and those farmed. A result of the survey then cases of diseases and abnormalities are reported. These include tumour like growth soft prawm syndrome, tail necrosis brown spot disease, red rostrum, ciliate infestation ,helminth parasitisation,metacercarial infestation and bopyrid infestation in the penaeid prawns such as penaeus indicus p. monodon , p. semisulcatus ,Metapenaeus
dobsoni and m.affinis.The symptoms ,occurrence and incidence of each of the above cases are
provided along with the information on environmental factors such as salinity,dissolved oxygen,temperature and ph of the water from the collection sites. The nature of the disease,the tissuse of the host that are affected by the infection or infestation or by the pathogen ,and the
actors influencing the infection in each of the ten cases are studied histopathologically and discussed. In the light of the available published information, the control measures for the different diseases of penaeid prawns are presented and discussed.
Description:
Center of Advanced studies in Mariculture, Central Marine fisheries research Institute
Jomy, John; Dr.Pramod, K V(Cochin University of Science And Technology, January 30, 2014)
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Abstract:
The objective of the study is to develop a hand written character recognition system that could recognisze all the characters in the mordern script of malayalam language at a high recognition rate
Description:
Department of Computer Applications
Cochin University of Science and Technology
Sonny, V A; Dr.Chandrasekharan Pillai, N(Cochin University of Science and Technology, July 28, 1993)
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Abstract:
The study is undertaken by the researcher with the object of examining the remuneration pattern of executive personnel in the manufacturing public enterprises in Kerala so as to find out whether there is any rationale or criteria involved in remunerating executives. It is also envisaged to find out the pattern of executive remuneration in the various categories of industries and inter—industry disparities among the public sector enterprises. This is considered to be a very fruitful area for investigation, particularly in view of the generally prevailing notion that public sector executives in Kerala are not remunerated properly and glaring inequalities and disparities are existing among the various categories of industries and within the same industry. Therefore the study is to explore the criteria used for the determination of executive remuneration and the relative weightage of various factors such as size of the firm, rate of return sales volume etc of the organisation and various other factors such as qualification, experience, level of job and functions of executives. Further the study is extended to find out the role of 'pay' towards motivation and efficiency of the executive personnel
Description:
School of Management Studies, Cochin University of Science and Technology
James Thomas,Kunnanatt; Dr.Ramachandra, Poduval P(Cochin University Of Science And Technology, November 25, 1990)
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Abstract:
The present study by the researcher focuses attention on
the problem of performance effectiveness among managers operating
in one of the critical and socially important sectors of our
economy namely commercial banking. The banking sector is selected
for the study due to two reasons. Firstly, commercial banking
plays an important role in the country's development. Secondly,
for improving the efficiency of the banking system, we need to
know more about the performance dynamics of the executives in our banking organizations
Description:
School Of Management Studies
Cochin University Of Science And Technology