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
This thesis "Entitled performance of district industries centres in kerala :An application of augmented solow model.The first chapter deals with evolution of approaches for promoting small scale production and the growth of small scale industries in india.the developing countries face the problems like sluggish growth capital shortages high levels of unemployment,enoromous rural-urban economic disparities regional inequalities increasing concentration of capital and chronic difficulities in the export sector.Review of literature and methodology of the study are presented in the second chapter. In the third chapter an attempt has been made to make an in-depth study of the emergence and growth of district of district industries centres.In the chapter four an attempt was made to study the organisational structure of DICs functions and responsibilities assigned to the functional managers and performance of the functionaries.
Abdul, Hameed K; Dr.Jose, Payyappilly T(Cochin University of Science and Technology, November 11, 2003)
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Abstract:
This thesis "Entitled performance of district industries centres in kerala :An application of augmented solow model.The first chapter deals with evolution of approaches for promoting small scale production and the growth of small scale industries in india.the developing countries face the problems like sluggish growth capital shortages high levels of unemployment,enoromous rural-urban economic disparities regional inequalities increasing concentration of capital and chronic difficulities in the export sector.Review of literature and methodology of the study are presented in the second chapter. In the third chapter an attempt has been made to make an in-depth study of the emergence and growth of district of district industries centres.In the chapter four an attempt was made to study the organisational structure of DICs functions and responsibilities assigned to the functional managers and performance of the functionaries.
Description:
Department of Applied Economics, Cochin University of Science and Technology
Jayasree, P K; Dr. Beena, K S(Cochin University of Science and Technology, April , 2008)
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Abstract:
Gabion faced re.taining walls are essentially semi rigid structures that
can generally accommodate large lateral and vertical movements without
excessive structural distress. Because of this inherent feature, they offer
technical and economical advantage over the conventional concrete gravity
retaining walls. Although they can be constructed either as gravity type or
reinforced soil type, this work mainly deals with gabion faced reinforced earth
walls as they are more suitable to larger heights.
The main focus of the present investigation was the development of a
viable plane strain two dimensional non linear finite element analysis code
which can predict the stress - strain behaviour of gabion faced retaining walls -
both gravity type and reinforced soil type. The gabion facing, backfill soil,
In - situ soil and foundation soil were modelled using 20 four noded
isoparametric quadrilateral elements. The confinement provided by the gabion
boxes was converted into an induced apparent cohesion as per the membrane
correction theory proposed by Henkel and Gilbert (1952). The mesh
reinforcement was modelled using 20 two noded linear truss elements.
The interactions between the soil and the mesh reinforcement as well as the
facing and backfill were modelled using 20 four noded zero thickness line
interface elements (Desai et al., 1974) by incorporating the nonlinear hyperbolic
formulation for the tangential shear stiffness. The well known hyperbolic
formulation by Ouncan and Chang (1970) was used for modelling the
non - linearity of the soil matrix. The failure of soil matrix, gabion facing and
the interfaces were modelled using Mohr - Coulomb failure criterion.
The construction stages were also modelled.Experimental investigations were conducted on small scale model walls
(both in field as well as in laboratory) to suggest an alternative fill material for the gabion faced retaining walls. The same were also used to validate the finite
element programme developed as a part of the study. The studies were
conducted using different types of gabion fill materials. The variation was
achieved by placing coarse aggregate and quarry dust in different proportions
as layers one above the other or they were mixed together in the required
proportions. The deformation of the wall face was measured and the behaviour
of the walls with the variation of fill materials was analysed. It was seen that
25% of the fill material in gabions can be replaced by a soft material (any locally
available material) without affecting the deformation behaviour to large extents.
In circumstances where deformation can be allowed to some extents, even up to
50% replacement with soft material can be possible.The developed finite element code was validated using experimental test
results and other published results. Encouraged by the close comparison
between the theory and experiments, an extensive and systematic parametric
study was conducted, in order to gain a closer understanding of the behaviour
of the system. Geometric parameters as well as material parameters were
varied to understand their effect on the behaviour of the walls.
The final phase of the study consisted of developing a simplified method
for the design of gabion faced retaining walls. The design was based on the
limit state method considering both the stability and deformation criteria.
The design parameters were selected for the system and converted to
dimensionless parameters. Thus the procedure for fixing the dimensions of the
wall was simplified by eliminating the conventional trial and error procedure.
Handy design charts were developed which would prove as a hands - on - tool
to the design engineers at site. Economic studies were also conducted to prove
the cost effectiveness of the structures with respect to the conventional RCC
gravity walls and cost prediction models and cost breakdown ratios were
proposed.
The studies as a whole are expected to contribute substantially to
understand the actual behaviour of gabion faced retaining wall systems with
particular reference to the lateral deformations.
Description:
Division of Civil Engineering,
Cochin University of Science and Technology
Ambilikumar, C K; Bhasi, M; Madhu, G(Cochin University Of Science And Technology, January 21, 2015)
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Abstract:
Coordination among supply chain members is essential for better supply
chain performance. An effective method to improve supply chain coordination is
to implement proper coordination mechanisms. The primary objective of this
research is to study the performance of a multi-level supply chain while using
selected coordination mechanisms separately, and in combination, under lost sale
and back order cases. The coordination mechanisms used in this study are price
discount, delay in payment and different types of information sharing.
Mathematical modelling and simulation modelling are used in this study to analyse
the performance of the supply chain using these mechanisms.
Initially, a three level supply chain consisting of a supplier, a manufacturer
and a retailer has been used to study the combined effect of price discount and
delay in payment on the performance (profit) of supply chain using mathematical
modelling. This study showed that implementation of individual mechanisms
improves the performance of the supply chain compared to ‘no coordination’.
When more than one mechanism is used in combination, performance in most
cases further improved.
The three level supply chain considered in mathematical modelling was
then extended to a three level network supply chain consisting of a four retailers,
two wholesalers, and a manufacturer with an infinite part supplier. The
performance of this network supply chain was analysed under both lost sale and
backorder cases using simulation modelling with the same mechanisms: ‘price
discount and delay in payment’ used in mathematical modelling. This study also
showed that the performance of the supply chain is significantly improved while
using combination of mechanisms as obtained earlier. In this study, it is found that
the effect (increase in profit) of ‘delay in payment’ and combination of ‘price
discount’ & ‘delay in payment’ on SC profit is relatively high in the case of lost
sale. Sensitivity analysis showed that order cost of the retailer plays a major role in
the performance of the supply chain as it decides the order quantity of the other
players in the supply chain in this study. Sensitivity analysis also showed that there
is a proportional change in supply chain profit with change in rate of return of any
player. In the case of price discount, elasticity of demand is an important factor to
improve the performance of the supply chain. It is also found that the change in
permissible delay in payment given by the seller to the buyer affects the SC profit
more than the delay in payment availed by the buyer from the seller.
In continuation of the above, a study on the performance of a four level
supply chain consisting of a manufacturer, a wholesaler, a distributor and a retailer
with ‘information sharing’ as coordination mechanism, under lost sale and
backorder cases, using a simulation game with live players has been conducted. In
this study, best performance is obtained in the case of sharing ‘demand and supply
chain performance’ compared to other seven types of information sharing
including traditional method. This study also revealed that effect of information
sharing on supply chain performance is relatively high in the case of lost sale than
backorder. The in depth analysis in this part of the study showed that lack of
information sharing need not always be resulting in bullwhip effect. Instead of
bullwhip effect, lack of information sharing produced a huge hike in lost sales cost
or backorder cost in this study which is also not favorable for the supply chain.
Overall analysis provided the extent of improvement in supply chain
performance under different cases. Sensitivity analysis revealed useful insights
about the decision variables of supply chain and it will be useful for the supply
chain management practitioners to take appropriate decisions.