Vincent, Varghese; Dr. Sebastian Rupert, Mampilly(Cochin University of Science and Technology, 2007)
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Abstract:
Biosocial profile can produce variations in Gender-role Orientation of executives.
Biosocial variables are not responsible for the development of Communication
Style except in cases of number of children, dual career family and fathers
occupation. Gender-role orientation is a function of Communication Style.
Executive performance is a function of Communication Style.Gender- role orientation can have a decisive influence on executive performance.
The cumulative effect of Communication Style and gender role orientation can
produce variations in executive performance. Open Communication Style is
predominantly responsible for the creation of a higher level executive
performance than other Communication Styles.
Description:
School of Management Studies,
Cochin University of Science & Technology
Jose Sebastian; Dr. Eby Thomas Thachil(September 23, 2015)
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Abstract:
Organic-inorganic nanocomposites combine unique properties of
both the constituents in one material. Among this group of materials,
clay based as well as ZnO, TiO2 nanocomposites have been found to
have diverse applications. Optoelectronic devices require polymerinorganic
systems to meet certain desired properties. Dielectric
properties of conventional polymers like poly(ethylene-co-vinyl acetate)
(EVA) and polystyrene (PS) may also be tailor tuned with the
incorporation of inorganic fillers in very small amounts. Electrical
conductivity and surface resistivity of polymer matrices are found to
improve with inorganic nanofillers. II-VI semiconductors and their nano
materials have attracted material scientists because of their unique
optical properties of photoluminescence, UV photodetection and light
induced conductivity. Cadmium selenide (CdSe), zinc selenide (ZnSe)
and zinc oxide (ZnO) are some of the most promising members of the IIVI
semiconductor family, used in light-emitting diodes, nanosensors,
non-linear optical (NLO) absorption etc. EVA and PS materials were
selected as the matrices in the present study because they are
commercially used polymers and have not been the subject of research
for opto-electronic properties with semiconductor nanomaterials
Shouri, P V; Dr.Sreejith,P S(Cochin University of Science and Technology, March , 2007)
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Abstract:
In the present scenario of energy demand overtaking energy supply top priority is given
for energy conservation programs and policies. Most of the process plants are operated
on continuous basis and consumes large quantities of energy. Efficient management of
process system can lead to energy savings, improved process efficiency, lesser operating
and maintenance cost, and greater environmental safety. Reliability and maintainability
of the system are usually considered at the design stage and is dependent on the system
configuration. However, with the growing need for energy conservation, most of the
existing process systems are either modified or are in a state of modification with a view
for improving energy efficiency. Often these modifications result in a change in system
configuration there by affecting the system reliability. It is important that system
modifications for improving energy efficiency should not be at the cost of reliability. Any
new proposal for improving the energy efficiency of the process or equipments should
prove itself to be economically feasible for gaining acceptance for implementation. In
order to arrive at the economic feasibility of the new proposal, the general trend is to
compare the benefits that can be derived over the lifetime as well as the operating and
maintenance costs with the investment to be made. Quite often it happens that the
reliability aspects (or loss due to unavailability) are not taken into consideration. Plant
availability is a critical factor for the economic performance evaluation of any process
plant.The focus of the present work is to study the effect of system modification for improving
energy efficiency on system reliability. A generalized model for the valuation of process
system incorporating reliability is developed, which is used as a tool for the analysis. It
can provide an awareness of the potential performance improvements of the process
system and can be used to arrive at the change in process system value resulting from
system modification. The model also arrives at the pay back of the modified system by
taking reliability aspects also into consideration. It is also used to study the effect of
various operating parameters on system value. The concept of breakeven availability is
introduced and an algorithm for allocation of component reliabilities of the modified
process system based on the breakeven system availability is also developed. The model
was applied to various industrial situations.
Description:
Division of Mechanical Engineering,Cochin University of Science and
Technology
Sarala Devi,K; Dr.Unnithan, R V(Cochin University of Science And Technology, November , 1986)
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Abstract:
Cochin backwaters, a tropical barbuilt estuary is well known for its prawn,
molluscan and demersal fisheries. Also it formed the dumping area for sewage,235
retting of husks and discharge of effluents from industries located on either side
of it. As a result the fishery is being gradually dwindled year after year due to
the lowering of the water quality. The effect of industrial polution on the benthic
community of this tropical estuary was worked out. An area extending over 21
km from the mouth of the estuary to upstream of industrial belt was selected.
Temporal and spatial variations of 16 environmental parameters at 9 stations
along the area were monitored monthly during 1981. Benthic fauna of these 9
stations consisted of amphipods , polychaetes, isopods, tanaidaceans, molluscs
and other crustaceans (Decapods, Acetes, Alpheids, Balanus, insect larvae,
chironomid larvae, cumacea and some fresh water forms ). Apart from these, sea
anemone, flat worms, nematodes, sipunculoids, echinoderms and fishes were
also encountered. 75 species belonging to 31 faunal groups were identified. Of
these 31 groups, amphipods, polychaedes, isopods, tanaidaceans and molluscs
were numerically abundant. Rest of the 26 groups (including 13 riverine forms)
were found less significant due to their rare occurrence/low numerical abundance.
Polychaetes and molluscs were the only major groups present at all the stations.
Description:
National Institute of Oceanography Regional Centre Cochin
Jose, Joseph; Dr.Gopakumar, K(Cochin University Of Science And Technology, August 21, 1989)
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Abstract:
Frozen storage characteristics and shelflife vary
considerably among species as well as within the species
(Powrie, 1973; Fennema. 1973). This can be attributed to the
variation in the composition of fish among various species.
In certain species like sardines and mackerel. wide seasonal
variation in chemical composition occur within the species.
These variations affect the quality and shelflife. The
nutritional level of water. spawning, method of catching,
struggling etc. are found to have profound influence on the
condition of the fresh fish.
Soon after death the deteriorative changes in fish start
due to autolysis and bacterial growth. The rate of these
changes depends mainly on temperature. The handling methods
have great influence on bacterial contamination. Thus the type
oi'handling. temperature control. period of chill storage.
processing methods. type of freezing, condition of frozen
storage and period of storage affect the quality and shelflife
Of the fisho
In the present study extensive investigations were
carried out on various factors affecting the quality of fish
as well as their effect on the physical. chemical and sensory
qualities of fish during frozen storage and the shelflife
Description:
Central Institute Of Fisheries Technology,Cochin University Of Science And Technology
Siby, Zacharias; Dr. James, Manalel(Cochin University of Science and Technology, June , 2011)
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Abstract:
The study was an attempt to find out the effect of Sales Promotion,Price and Premium Promotion,on Consumer Based Brand Equity.The dimensions of consumer Based Brand Equity under study were Brand Awareness and Associations,Perceived Quality and Brand Loyalty.The Product categories under study were Convenience Products,shopping Products and Specialty Products and the product classes taken were Toothpastes,Colour Television and Athletic Shoes.The brands under study were Convenience Products-Anchor,Closeup,Colgate and Dabur:Shopping products-LG,Onida,Samsung and Sony and Specialty Products-Action,Adidas,Nike and Reebok.The primary objective of the study was to examine the effect of Sales Promotion,Price and Premium Promotion,on Consumer Based Brand Equity(CBBE)
Description:
School of Management Studies,Cochin University of Science and Technology
Kanakavalli,Susarla S; Dr.Balakrishnan, K P(Cochin University of Science and Technology, March 10, 1987)
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Abstract:
The extraction and use of metals has been the mainstay for the sustained development and progress of a nation. Metals, though fairly stable in the natural environment are found in trace quantities in water bodies. Attention has therefore been focused to identify the metals that impair the water quality. In the last few decades the concern about the fate of these metals in the aquatic system has been gaining momentum, particularly in the industrial belts. The disasters caused by metal poisoning in recent times have prompted an indepth study of the interaction of metals with aquatic biota. Kerala, basically an agriculture oriented state has witnessed the upsurgence of various industries as a part of the nationwide economic development programme. Cochin has been identified as the industrial capital of the state.The present study is an attempt towards a better understanding of the metal-phytoplankton interactions with special reference to the physiological changes in the species. various parameters such as temperature, salinity, pH, nutrients, number of cells, photosynthetic pigments, carbohydrates, protein and lipid are studied to highlight the complexity of metal..phytoplankton interaction
Description:
School of Environmental Studies,
Cochin University of Science and Technology
Dhanya,P R; Dr.Saleena, Mathew(Cochin University of Science And Technology, October 16, 2012)
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Abstract:
Unprocessed seafood harbor high number of bacteria, hence are more prone to
spoilage. In this circumstance, the use of spice in fish for reduction of microorganism can
play an important role in seafood processing. Many essential oils from herbs and spices are
used widely in the food, health and personal care industries and are classified as GRAS
(Generally regarded as safe) substances or are permitted food additives. A large number of
these compounds have been the subject of extensive toxicological scrutiny. However, their
principal function is to impart desirable flavours and aromas and not necessarily to act as
antimicrobial agents. Given the high flavour and aroma impact to plant essential oils, the
future for using these compound as food preservatives lies in the careful selection and
evaluation of their efficacy at low concentrations but in combination with other chemical
preservatives or preservation processes. For this reason they are worth of study alone or in
combination with processing methods in order to establish if they could extend the shelf-life
of foods.
In this study, the effect of the spices, clove, turmeric, cardamom, oregano, rosemary
and garlic in controlling the spoilage and pathogenic bacteria is investigated. Their effect on
biogenic amine formation in tuna especially, histamine, as a result of bacterial control is also
studied in detail. The contribution of spice oleoresin in the sensory and textural parameters
is investigated using textural profile analysis and sensory panel. Finally, the potential of
spices in quality stabilization and in increasing the shelf–life of tuna during frozen storage is
analysed
Description:
School of Industrial Fisheries
Cochin University of Science and Technology
Cilla Abraham; Dr.Radhakrishnan,C K(Cochin University Of Science And Technology, November , 2012)
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Abstract:
The main objective of the present work is to acquire information
regarding the growth responses of P. monodon larvae (from PZ1 upto PL1)
to various mono specific and mixed diets. Evaluate the nutritional quality of
selected species of micro algae viz. Chaetoceros calcitrans, Dunaliella
salina, Isochrysis galbana and Nannochloropsis salina, larvae at three cell concentrations 10x104 cells/ml, 25x104 cells/ml and
50x104 cells/ml.
The P. monodon larvae were transported, at the Nauplius stage, to the
laboratory. The larvae were stocked at density of 150 larvae per litre in 5 litre
FRP tanks with 3 litres of sea water. The algal cell density given to the larvae
varied. The larval stages were fed with increasing densities of algae to
evaluate the relationship between the food densities, ingestion rates,
development and growth of the larvae. The water quality parameters, the
percentage of survival rate, the growth estimation and the algal cell count
were done. Each experiment was carried out in triplicate with a control group
of larvae fed with Chaetoceros calcitrans. For the estimation standard
procedures were used.to P. monodon
Description:
Dept. of Marine Biology,
Microbiology and Biochemistry.
Cochin University of
Science and Technology
Bikash Chandra, Mohapatra; Dr.Rengarajan, K(Cochin University Of Science And Technology, August , 1993)
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Abstract:
The research investigations on pollution, particularly in coastal/
estuarine environments are recent ones and started only in 1970s. Hence
the informations available are fragmentary and scattered. They throw
some light only on either the concentration of heavy metals in water
or in sediment or in organisms. No concerted efforts have been made
to consolidate and correlate the results between the environment and
biota. Literature on the level of concentration of heavy metals in different
tissues of organisms with regard to their availability in the living media,
their ratio, their inter—relationship, tolerance limit of organisms, etc. are
very few or rather nil.
in view of the importance enumerated above, the candidate has
selected the topic "Effects of some heavy metals copper, zinc and lead
on certain tissues of E E (Hamilton and Buchanan) in different
environments" for detailed studies and to understand systematically (i)
the source of effluents and wastes, (ii) the concentration of heavy metals
copper, zinc and lead in water, in sediments and in tissues of the test
animal, (iii) their effects, (iv) capacity of tolerance and accumulation
in different tissues of the animal, and (V) the "Bioaccumulation Factor",
etc.
Description:
Department Of Marine Sciences, Cochin University Of Science And Technology
Ashokakumaran, Unnithan K; Dr.Menon,N R; Dr.Kuttyamma, V J(Cochin University Of Science And Technology, August , 1997)
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Abstract:
The present research programme envisages a comparative study of the effects of
two piscicides of plant origin, viz., mahua oil cake, a derivative from the plant fig
Iatifolia and croton seed, a product from the plant Croton tiglium. Although some reports
on the effects of mahua oil cake and croton seed on fresh water pond culture systems are
available, information on their effect on brackishwater culture systems are rather scanty
This was the guiding principle for launching the present study It is hoped that the findings
will enable aquaculturists to make use of the piscicides in a more rational and efficient
way, and will go a long way towards realising the maximum return liom culture systems
without hampering the environment.
The thesis is presented in seven chapters such as Introduction, Review of
literature, Materials and Methods, Results, Discussion, Summary and Bibliography
Description:
School of Marine Sciences. Cochin University of Science and
Technology