Parvathy, P; Dr.Rajasenan,D(Cochin University Of Science And Technology, November , 2012)
[+]
[-]
Abstract:
The present study examines the type of NTMs, especially the quality
regulations and safety standards encountered by the marine product exports of
Kerala in its major import markets of the EU, the US and Japan. An analysis of
whether the safety and quality standards prescribed by these developed countries
on the imported fish and fishery products are purely based on risk assessment and
scientific evidence or are they erected as disguised barriers to trade is attempted
Description:
Department of Applied Economics
Cochin University of Science and Technology
Parvathy, P; Dr Rajasenan, D(Cochin University of Science and Technology, November , 2012)
[+]
[-]
Abstract:
Fish and fishery products are regarded as healthy foods and there has been
a significant increase in their global trade. Besides that, trade liberalization policies, globalization of food systems and technological innovations have
furthered the increase in international trade in fish and fishery products.Fish and fishery product exports have a significant place in the export
basket of India. Export earnings of India from fishery products increased from
` 4 crores in 1960-61to ` 12901.47 crores in 2010-11(MPEDA, 2012). The
share of export earnings from fish and fishery products as a percentage of total
agricultural exports of India increased from a low of 1.76 percent in 1960-61
to a high of 25.06 percent in 1994-95. But its share declined to 16.60 percent
in the following year. Though its share in agricultural exports of the country
has declined since then, in 2010-11, marine product exports accounted for 9.61 percent of total agricultural exports of India representing a significant share.
Venu, Nair G; Dr.Mohan Kumar, K(Department of Atmospheric Science, 2006)
[+]
[-]
Abstract:
The thesis gives a general introduction about the topic include India, the spatial and temporal variation of the surface meteorological parameters are dealt in detail. The general pattern of the winds over the region in different seasons and the generation and movements of the thermally and dynamically originated local wind systems of Western Ghats region has been studied. The modification of the prevailing winds over region by the Palghat Gap and its effect on the mouth regions pf the gap is analysed in great depth. The thesis gives the information of climatic elements of the mountain region such as energy budgets, rainfall studies, evaporation and condensation and the variation in the heat fluxes over the region. The impact of orography is studied in a different approach. The type of hypothetical study gives more insight into the control of mountain on the distribution of meteorological parameter over the study region and helps to quantify the impact of the mountain in varying the weather climate of region. The detailed study of the hydro-meteorological aspects of the main river basins of the region also should be included to the climatic studies for the total understanding of the weather and climate over the region.
Gopakumar,C S; Dr.Prasada Rao,GSLHV; Dr.Ram Mohan,H S(Cochin University of Science & Technology, October , 2011)
[+]
[-]
Abstract:
The study revealed that southwest monsoon rainfall in Kerala has been declining while increasing in post monsoon season. The annual rainfall exhibits a cyclic trend of 40-60 years, with a significant decline in recent decades. The intensity of climatological droughts was increasing across the State of Kerala through it falls under heavy rainfall zone due to unimodal rainfall pattern. The moisture index across the State of Kerala was moving from B4 to B3 humid, indicating that the State was moving from wetness to dryness within the humid climate.The study confirms that a warming Kerala is real as maximum, minimum and mean temperatures and temperature ranges are increasing. The rate of increase in maximum temperature was high (1.46°C) across the high ranges, followed by the coastal belt (1.09°C) of Kerala while the rate of increase was relatively marginal (0.25°C) across the midlands. The rate of increase in temperature across the high ranges is probably high because of deforestation. It indicates that the highranges and coastal belts in Kerala are vulnerable to global warming and climate change when compared to midlands.Interestingly, the trend in annual rainfall is increasing at Pampadumpara (Idukki), while declining at Ambalavayal across the highranges. In the case of maximum temperature, it was showing increasing trend at Pampadumpara while declining trend at Ambalavayal. In the case of minimum temperature it is declining at Pampadumpara while increasing in Ambalavalal.The paddy productivity in Kerala during kharif / virippu is unlikely to decline due to increasing temperature on the basis of long term climate change, but likely to decline to a considerable extent due to prolonged monsoon season, followed by unusual summer rains as noticed in 2007-08 and 2010-11.All the plantation crops under study are vulnerable to climate variability such as floods and droughts rather than long term changes in temperature and rainfall.
Description:
Department of Atmospheric Sciences, Cochin University of Science and Technology
Rajesh, R; Rajasenan, D(Cochin University of Science And Technology, March , 2015)
[+]
[-]
Abstract:
The first part of the study has focused on the trends in area, production
and productivity comparing the state’s performance with of national level
performance. Also an attempt was made to understand the trends in
commodity price over the years especially in the post liberalization period
from the early 1990s. Plantation commodities occupy an important share in
the country’s export basket and thereby earning foreign exchange to the
national exchequer. Taking into consideration the competitive dimension of
natural rubber, cardamom and pepper in the export market was analyzed to
see penetration of these commodities in the world market.The second part of the study has tried to understand the plantation
workers livelihood by understand the employment generation in the sector.
Livelihood assets of plantation workers were analyzed to understand the nature of ownership of various assets. Understanding the poor quality and
ownership of various livelihood assets and their relative deprivation the study
also tried to understand the income-expenditure patterns and the nature of
indebtedness among workers and the factors responsible for deprivation and
thereby social exclusion.Area, Production and productivity trends of rubber, pepper and
cardamom show a mixed picture. Area, Production trends are impacted
greatly by the commodity price of the plantation crops.High correlation exists
between commodity price and area and production trends of plantation crops
in the state.In terms of Natural Rubber, Kerala experienced a steady growth over
the years in terms of area production and productivity as the price of rubber
has increasedIn terms of black pepper, the state witnessed a deceleration in growth.In the case of cardamom the area of cultivation declined whereas
production increasedProductivity of natural rubber, pepper and cardamom has increased
substantially over the yearsEmployment pattern in rubber and spices sub-sector has been analyzed
by looking in to the commodity prices so as to see the changes in
employment pattern over the years. The study has helped to understand that
commodity price and employment generation in plantations are interconnected
to such an extent that a fall in the commodity price have greater reverberations
on the employment pattern in plantations.Livelihood analysis both in the small and large holdings show that
workers belonging to rubber (large and small rubber) plantations have shown
better possession of livelihood assets when compared to spices plantation
workers as 16.2 percent of the spices sub-sector workers claimed about
ownership of house which is considered to be an important and primary
livelihood asset.In the case of natural assets like accessibility, availability and duration
of water for drinking and other household purposes, the situation of workers
in spices plantation still remain poor as around 80 percent of workers
depending on public well public taps and canals as source of drinking water.Evaluating financial assets also give clear indication that the road to
secure financial assets still remains a distant dream for the workers in
plantation sectorEvaluating income and expenditure trends pinpoints to the fact that
disparity in terms of income exist among the plantation workersWhile observing the employment though wage levels have improved
because of improvement in commodity price of plantation crops, significant
improvements are not visible in their livelihood and they remain excluded
compared to other sections of the society.
Suprabha, K M; Dr.Sankaranarayanan, K C(Cochin University of Science and Technology, September , 2008)
[+]
[-]
Abstract:
A socio-economic research is required as an attempt to address the
socio-economic issues facing small-scale fisheries. A study of the socio
economic conditions of small-scale fishermen is a prerequisite for good
design and successful implementation of effective assistance
Programmes. It will provide an overall pidure of the structure, activities
and standards of living of small-scale fisherfolk The study is confined
to the coastal districts of Ernakulam, Thrissur and Malappuram districts. It also gives a picture of socio-economic conditions of the
fisher folk in the study area. The variables that may depict the standard
of living of the small-scale fisherfolk are occupational structure, family
size, age structure, income, expenditure, education, housing and other
social amenities. It attempts to see the asset creation of the fisherfolk
with the help of government agencies, and the nature of savings and
expenditure pattern of the fisherfolk. It also provides a picture of the
indebtedness of the fisherfolk in the study area. The study analyses the
schemes implemented by the government through its agencies, like
Fisheries Department, Matsyaboard, and Matsyafed; and the awareness
of fisherfolk regarding these schemes, their attitude and reactions, the
extent of accessibility, and the viability of the schemes.
Description:
Department of Applied Economics,Cochin University of Science and Technology
Radhika, R; Dr.Sujatha, C H(Cochin University of Science and Technology, February , 2013)
[+]
[-]
Abstract:
In the present thesis entitled” Implications of Hydrobiology and Nutrient dynamics on Trophic structure and Interactions in Cochin backwaters”, an attempt has been made to assess the influence of general hydrography, nutrients and other environmental factors on the abundance, distribution and trophic interactions in Cochin backwater system. The study was based on five seasonal sampling campaigns carried out at 15 stations spread along the Cochin backwater system. The thesis is presented in the following 5 chapters. Salient features of each chapter are summarized below:
Chapter 1- General Introduction: Provides information on the topic of study, environmental factors, back ground information, the significance, review of literature, aim and scope of the present study and its objectives.Chapter 2- Materials and Methods: This chapter deals with the description of the study area and the methodology adopted for sample collection and analysis. Chapter 3- General Hydrograhy and Sediment Characteristics: Describes the environmental setting of the study area explaining seasonal variation in physicochemical parameters of water column and sediment characteristics. Data on hydrographical parameters, nitrogen fractionation, phosphorus fractionation and biochemical composition of the sediment samples were assessed to evaluate the trophic status. Chapter 4- Nutrient Dynamics on Trophic Structure and Interactions: Describes primary, secondary and tertiary production in Cochin backwater system. Primary production related to cell abundance, diversity of phytoplankton that varies seasonally, concentration of various pigments and primary productivitySecondary production refers to the seasonal abundance of zooplankton especially copepod abundance and tertiary production deals with seasonal fish landings, gut content analysis and proximate composition of dominant fish species. The spatiotemporal variation, interrelationships and trophic interactions were evaluated by statistical methods.
Chapter 5- Summary: The results and findings of the study are summarized in the fifth chapter of the thesis.
Description:
Department of
Chemical Oceanography, School of Marine Sciences, Cochin University of
Science and Technology,
Binsu C, Kovoor; Poulose Jacob, K; Supriya, M H(Cochin University Of Science And Technology, January , 2015)
[+]
[-]
Abstract:
Biometrics is an efficient technology with great possibilities in the area of security system development for official and commercial applications. The biometrics has recently become a significant part of any efficient person authentication solution. The advantage of using biometric traits is that they cannot be stolen, shared or even forgotten. The thesis addresses one of the emerging topics in Authentication System, viz., the implementation of Improved Biometric Authentication System using Multimodal Cue Integration, as the operator assisted identification turns out to be tedious, laborious and time consuming. In order to derive the best performance for the authentication system, an appropriate feature selection criteria
has been evolved. It has been seen that the selection of too many features lead to the deterioration in the authentication performance and efficiency. In the work reported in this thesis, various judiciously chosen components of the biometric traits and their feature vectors are used for realizing the newly proposed Biometric Authentication System using Multimodal Cue Integration. The feature vectors so generated from the noisy biometric traits is compared with the feature vectors available in the knowledge base and the most matching pattern is identified for the purpose of user authentication. In an attempt to improve the success rate of the Feature Vector based authentication system, the proposed system has been augmented with the user dependent weighted fusion technique.
Sindhumol, S; Dr.Kannan, B(Cochin University Of Science And Technology, July 3, 2013)
[+]
[-]
Abstract:
Magnetic Resonance Imaging (MRI) is a multi sequence medical imaging
technique in which stacks of images are acquired with different tissue
contrasts. Simultaneous observation and quantitative analysis of normal brain
tissues and small abnormalities from these large numbers of different
sequences is a great challenge in clinical applications. Multispectral MRI
analysis can simplify the job considerably by combining unlimited number of
available co-registered sequences in a single suite. However, poor
performance of the multispectral system with conventional image
classification and segmentation methods makes it inappropriate for clinical
analysis. Recent works in multispectral brain MRI analysis attempted to
resolve this issue by improved feature extraction approaches, such as
transform based methods, fuzzy approaches, algebraic techniques and so
forth. Transform based feature extraction methods like Independent
Component Analysis (ICA) and its extensions have been effectively used in
recent studies to improve the performance of multispectral brain MRI
analysis. However, these global transforms were found to be inefficient and
inconsistent in identifying less frequently occurred features like small lesions,
from large amount of MR data.
The present thesis focuses on the improvement in ICA based feature
extraction techniques to enhance the performance of multispectral brain MRI
analysis. Methods using spectral clustering and wavelet transforms are
proposed to resolve the inefficiency of ICA in identifying small
abnormalities, and problems due to ICA over-completeness. Effectiveness of
the new methods in brain tissue classification and segmentation is confirmed
by a detailed quantitative and qualitative analysis with synthetic and clinical,
normal and abnormal, data. In comparison to conventional classification
techniques, proposed algorithms provide better performance in classification
of normal brain tissues and significant small abnormalities.
Description:
Department of Computer Applications
Cochin University of Science and Technology
Binu, Paul P; Dr.Rajasenan,D(Cochin University Of Science And Technology, July , 2013)
[+]
[-]
Abstract:
The overall objective of the study is to examine whether the tribal communities in Kerala can be considered a coherent group in terms of select indicators of development by focusing on nine major tribal communities. The study also aims to bring out the intercommunity differences if any in aspects of livelihood options and education level of the tribal communities in Kerala
Description:
Department of Applied Economics
Cochin University of Science and Technology
Geetha, P; Dr.Ravindranatha Menon,N(Cochin University of Science & Technology, 1994)
[+]
[-]
Abstract:
This thesis embodies findings on a taxonomical investigation of a group of lower marine invertebrates belonging to the category coelomata. Bryozoans are well known both in fossil and recent taxonomical history. They comprise of about 5,000 living and 16000 fossil species. Bryozoans are well known for their taxonomic abundance and structural diversity,representing the various ecological niches ranging from the intertidal to the abyssal benthic. At a time when global marine biological diversity has become a concern of not only to the scientists but also to the policy makers,an understanding of species diversity and abundance are cardinal aspects of biological studies. Geological time scales which is known that by Pre-Cambrian, marine invertebrate diversity reach the maximum and this diversity has become more comprehensive as time advanced. Taxonomists a vanishing species of scientists have become more concerned in discerning patterns of species diversity. The basic tool for this is identification fo animals. with this idea in mind a detailed study of taxonomy of bryozoan was undertaken . The major part of this thesis is devoted to describe various species of bryozoans with detailed description and ecotypical variations.The pattern of distribution and abundance which are important aspects of animal groups have also been documented. Possible effects of heavy metal contamination on the tolerance and growth of bryozoans, a few species of which have been eliminated from the chronically polluted areas of Cochin backwaters have also been documented.
Description:
Division of Marine Biology, Microbiology and Biochemistry, School of Marine Sciences, cochin University of Science and Technology