Kemthose,P Paul; Dr.Bhasi, M(School of Management Studies, Faculty of Social Sciences, 2003)
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Abstract:
Model development for selection of location for refinery in India and identification of characteristics to be looked into when configuring it and to develop models for integrated supply chain planning for a refinery. Locating and removing inbound, internal and outbound logistic problems in an existing refinery and overall design of a logistic information system for a refinery are the main objectives of the study. A brief description of supply chain management (SCM), elements of SCM and their significance, logistics cost in petroleum industry and its impacts, and dynamics of petroleum its logistic practices are also to be presented. Scope of application of SCM in petroleum refinery will also be discussed. A review of the investigations carried out by earlier researches in the area of supply chain management in general and with specific reference to petroleum refining.
Maya, C Pillai; Rajasenan, D(Ccchin University of Science and Technology, 2003)
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Abstract:
The study deals with the short and long term supply response of the natural rubber in India and to analyse the macro economic environment of NR industry and causative factors of the rubber price crash. It determines the minimum cost of production of natural rubber and to forecast the potential production of NR in India. There is positive response of short run and long run supply to prices. Since correlation analysis show close association between international and domestic price level, international price changes will have its domestic echo. Production and consumption will sustain its rising trend. This makes plans for increasing production estimates show that a mid way level i.e. the range between Rs.32-Rs.38 will give a fair enough profit to the grower in the present situation and provide for the viable sustenance of rubber cultivation. Identification of the SWOT of rubber cultivation would help in supporting rubber cultivation if remedial measures are undertaken with the true spirit. This would help Indian rubber to attain global competitiveness. Then the inflow of valuable foreign exchange will overcome the other economic drawbacks of rubber cultivation
Yoosaf, K; Dr. George Thomas, K(Chemical Sciences and Technology Division,CSIR, January , 2008)
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Abstract:
Most of the procedures reported for the synthesis of metal
nanoparticles involve the use of strong reducing agents or elevated
temperatures. This limits the possibility of developing metal nanoparticle
based sensors for the in situ detection of analytes. One of the objectives of
the present investigations is to (i) develop newer methodologies for the
synthesis of metal nanoparticles in aqueous medium at ambient conditions
and (ii) their use in the detection of metal cations by taking advantage of
the unique coordination ability. Ideally, biocompatible molecules which
possess both the reducing and stabilizing groups are desirable for such
applications. Formation of stable supramolecular assembly, by bringing metal nanoparticles close to each other, results in plasmon coupling and
this strategy can be effectively utilized for the development of metal
nanoparticle based sensors.Another objective of the present study is to understand the
supramolecular organization of molecules on surfaces. Various
noncovalent interactions between the molecules and with surface play a
decisive role in their organizations. An in-depth understanding of these
interactions is essential for device fabrications. Recent photophysical
studies have revealed that phenyleneethynylene based molecular systems
are ideal for device application. The second objective of the thesis focuses
on understanding the (i) organization of phenyleneethynylenes on highly
oriented pyrolytic graphite (HOPG) surface with atomic level precision and
(ii) weak intermolecular interactions which drive their organization.
Krishna Kumar,P A; Chandramohanakumar, N(Cochin University of Science and Technology, October , 1999)
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Abstract:
This study focuses on the fractionation and quantification of chlorophenols, the most important and potential pollutant in this category, the distribution and seasonal dynamics of MBAS, phenols and clorophenols and development of a model to describe the chemical reactivity of the estuary are utilizing the dynamics of boron. The CES is highly influenced by various anthropogenic activities like discharge of agricultural, industrial and urban wastes operation of shipyard, oil and other transporting activities, fishing, dredging etc. Seasonal values of MBAS showed high values in the surface water during monsoon compared to premonsoon and postmonsoon. In the Cochin estuary o-chlorophenol and p-chlorophenol showed low values in the surface water compared to bottom water in the northern part of the estuary and higher values in the surface water in the southern part
Akula Raghunadha, Rao; Basil, Mathew(Naval Physical & Oceanographic Laboratory,Defence Research and Development Organisation, 2008)
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Abstract:
In the present study the availability of satellite altimeter sea level data with good spatial and temporal resolution is explored to describe and understand circulation of the tropical Indian Ocean. The derived geostrophic circulations showed large variability in all scales. The seasonal cycle described using monthly climatology generated using 12 years SSH data from 1993 to 2004 revealed several new aspects of tropical Indian Ocean circulation. The interannual variability presented in this study using monthly means of SSH data for 12 years have shown large year-to-year variability. The EOF analysis has shown the influence of several periodic signals in the annual and interannual scales where the relative strengths of the signals also varied from year to year. Since one of the reasons for this kind of variability in circulation is the presence of planetary waves. This study discussed the influence of such waves on circulation by presenting two cases one in the Arabian Sea and other in the Bay of Bengal.
Jalaja, Malayan J; Dr.Sugunan, S(Cochin University of Science and Technology, December , 1994)
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Abstract:
The rare earths have provided fascinating field
for chemists confronted with problems of their separation
and purification. The rare earths become available in
relatively pure form in recent years due to the development
of efficient separation methods, largely as a byproduct of
the atomic energy programmes of various countries. The
rare earths often called lanthanides from La (Z=57) to Lu
(Z=7l) display subtle variation of properties through the
series, while the differences become appreciable for the
elements that are farther apart.
Description:
Department of
Applied Chemistry, Cochin University of Science and
Technology
Ramankutty, C G; Dr.Sugunan, S(Cochin University of Science & Technology, November , 2000)
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Abstract:
The present study describes the surface properties and catalytic activities of
ferrospinels containing Co, Ni and Cu prepared by the low temperature route. Various
physico-chemical methods have been adopted to characterise the systems. The reactions
carried out are the Friedel-Crafts benzoylation of aromatics and the cyclohexanol
decomposition. We have attempted the sulphate modification of the ferrites and have
studied the surface and catalytic properties of the sulphated analogues.The work is presented in six chapters, the last chapter giving the summary and
conclusions of the results presented earlier. Our samples prove as potential catalysts for
the benzoylation of aromatics , for which truly heterogeneous catalysts are rare. Again ,
the materials show remarkable dehydration/dehydrogenation activities during
cyclohexanol decomposition. There is plenty of scope for research in this field, especially
in the development of environmentally benign catalysts for acylation reactions.
Description:
Department of Applied Chemistry,
Cochin University of Science and Technology
Nishamol,Kanat; Sugunan, S(Department of applied chemistry, 2002)
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Abstract:
In recent years considerable advances have been achieved in the study of the surface structure and mechanism of action of environmentally benign heterogeneous catalysts. The study entitled as surface properties and catalytic activity of manganese ferrospinels. In the present study we have prepared manganese ferrospinels of general formula Mn(1-x)BxFe2O4 via low temperature controlled co-precipation method. The study employed low temperature co-precipitation method for the preparation ofMn(1-x)BxFe2O4 specimens, where B is a metal cation such as Cr,Co, Ni,Cu and Zn. The catalytic activities of the systems were investigated for liquid-phase benzoylation of aromatic compounds and phenol hydroxylation and for vapour-phase reactions such as aniline alkylation, phenol methylation and ODH of ethylbenzene. The different series of manganese ferrites are proved to be excellent catalysts for various industrially important reactions such as Friedel-crafts benzoylation of aromatic compounds, methylation of aniline and phenol, hydroxylation of phenol and oxidative dehydrogenation of ethylbenzene. Due to the tightening of the environmental regulations, production of diphenols from phenol hydroxylation and reduction of phenolic pollutants in waste waters using these catalysts can be a promising approach because it demands only simple techniques and produce little environmental pollution.
Renuka, N K; Dr.Sugunan, S(Cochin University of Science & Technology, November , 2000)
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Abstract:
An investigation on the physical and chemical characterisation of rare earth oxide
supported vanadia is attempted in the present study. La2O3, Sm2O3 and DY2O3 serve the
purpose of supports. Supported catalysts were prepared and characterised using various
physico chemical techniques. A detailed investigation of acid base properties is also
carried out. The nature of interaction of vanadia with lanthanide oxide is discussed and
the effect of vanadia loading on the activity of the systems towards reactions of industrial
importance is explored.
Description:
Department of Applied Chemistry,
Cochin University of Science and Technology
Vijayakumar, K P; Dr.Purushothaman, C(Cochin University of Science and Technology, May 28, 1984)
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Abstract:
The thesis aims to present the results of experimental investigations on the changes of optical properties of metallic thin films due to heating. The parameters which are measured are reflectivity, refractive indices and the ellipsometric quantities V and A . The materials used in the studies are metals like Silver, Aluminium and Copper. By applying the optical method the interdiffusion taking place in multilayer
‘films of Aluminium and Silver has also been studied. Special interest has been taken to reveal the mechanisms of the hillock growth and surface roughness caused by heating and their relation with the stress in the film
Description:
Department of Physics, Cochin University of Science and Technology
Aneesh, V Pillai; Dr. V. S. Sebastian(Cochin University of Science and Technology, June 28, 2013)
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Abstract:
The advancements in medical science and technology have proved to be a boon
to mankind. At the same time they have raised numerous challenges before the legal
systems of the world. One such advancement is that of assisted human reproductive
technologies and particularly surrogacy, which have given a new meaning to the
concept of procreation. These technologies have made it possible for individuals to
beget a genetically related child with the help of a third party and without sexual
intercourse. Among all the assisted human reproductive technologies, the practice of
surrogacy, in which women agree to have their bodies used to undergo a pregnancy
and give birth to a baby for another, has raised various legal and human right
controversies and diverse legal responses all over the world. India has particularly
become a top destination for individuals who wish to beget a child through surrogacy
and hence it is imperative for the Indian government to address the challenges posed
by surrogacy. This study is an attempt to examine the need and importance of
surrogacy practices and the conflicting legal and human rights issues raised by
surrogacy in contemporary times. It also examines the adequacy of existing legal
framework in India and attempts to provide pragmatic solutions for regulating
surrogacy and protecting the interests of various stakeholders involved in surrogacy.
Nowshad, M; Dr.Kuttyamma, V J; Dr.Menon,N R(Cochin University of Science and Technology, January , 1998)
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Abstract:
The present study aims at surveying the coral lagoons of four islands viz.
Kavarathi, Kalpeni, Kadmat and Agathi, which include quantitative survey of the
major benthic forms using Line Intercept Transect (LIT) technique and
hydrographical study of these lagoon waters The distribution of PHC in the
lagoons has also been followed to understand, the effects of introduction of flat
bottomed ferry boats to the islands.From a biological monitoring stand point for the assessment of manmade disturbance of the coral reefs, it IS highly essential to identify faunal assemblages which will contain 'flag-stones' specIes as indicators of such disturbances. Among the known faunal assemblages In coral reefs the most
diverse groups of sensitive species belongs to bryozoan assemblage. Therefore, the
most common species of bryozoans distributed along the atolls and reef flats
were collected and described in this work Along with this, bryozoans
associated with coral from other parts of Indian ocean have also been added so as
to provide a comprehensive picture of the distribution of bryozoans in the coral
reefs.
Description:
Department of Marine Biology, Cochin University of Science and Technology
Liya, Jayalal; Ramachandran, A(Cochin University of Science and Technology, May , 2014)
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Abstract:
The Indian ornamental fish industry is divided into two-the domestic market and the export market. 90% of the freshwater ornamental fish exported from India are wild caught indigenous species. The study formed the criteria and indicators assessing the sustainability of wild caught ornamental fish exported from India. These indicators were then analyzed for their interactions, connections, linkages and relationships using cognitive mapping. The work is first of its kind in the ornamental fisheries