Parvathi, M R; Bindu M, Krishna; Rajesh, S; Manu P, John; Nandakumaran, V M(Elsevier, October , 2009)
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Abstract:
Dynamics of Nd:YAG laser with intracavity KTP crystal operating in two parallel polarized modes is investigated analytically and numerically. System equilibrium points were found out and the stability of each of them was checked using Routh–Hurwitz criteria and also by calculating the eigen values of the Jacobian. It is found that the system possesses three equilibrium points for (Ij, Gj), where j = 1, 2. One of these equilibrium points undergoes Hopf bifurcation in output dynamics as the control parameter is increased. The other two remain unstable throughout the entire region of the parameter space. Our numerical analysis of the Hopf bifurcation phenomena is found to be in good agreement with the analytical results. Nature of energy transfer between the two modes is also studied numerically.
Mathew, K T; Anil, Lonappan; Paul, Benzy; Thimothy, V O; Rajasekaran, C; Vinu, Thomas; Joe, Jacob(Wiley InterScience, January , 2009)
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Abstract:
This article reports a new method of analyzing pericardial
fluid based on the measurement of the dielectric properties at microwave
frequencies. The microwave measurements were performed by
rectangular cavity perturbation method in the S-band of microwave frequency
with the pericardial fluid from healthy persons as well as from
patients suffering from pericardial effusion. It is observed that a remarkable
change in the dielectric properties of patient samples with the
normal healthy samples and these measurements were in good agreement
with clinical analysis. This measurement technique and the method
of extraction of pericardial fluid are simple. These results give light to
an alternative in-vitro method of diagnosing onset pericardial effusion
abnormalities using microwaves without surgical procedure.
Rajini, K M; Dr. Sankaranarayanan, K C(Cochin University of Science and Technology., October , 2009)
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Abstract:
The study is entitled “HUMAN RESOURCES DEVELOPMENT
IN HIGHER EDUCATION IN KERALA”. The concept “Human
Resource Development” is of high value in business and industry
and has been used and applied since years. In industry and
business the ‘human’ element is considred as a resource and hence
its development and protection is very essential and inevitable. Of all
the factors of production, human resource is the only factor having
rational faculty and therefore, it must be handled with utmost care.
Right recruitment, right training and right induction followed by
faultless monitoring and welfare measures are but decisive factors in
business and industiy. Altogether there is a constant attention up on
human factor there. But this is not a practice at all in education. So
far there has not been any such measure of care and close watch
and performance analysis of human resource on education front.
This may be the main reason for lack of accountability in the sphere
of education. The present study reveals the importance of
introducing HRD practices in higher educational institutions in
Kerala. In order to promise human capital formation through
education, it is basic requirement. The higher educational
institutions must follow the method of industry and commerce
because education can be treated as an industry in service sector.
There also we can follow the methods of right recruitment, right
training and promotion, delegation, performance analysis and
accountability checking of human resource. HRD is a powerful idea
of transformation of human being into highly productive and
contributing factor The HRD of students is the sum total of HRD of
teachers. Reminding the primordial usage ‘Yatha Raja Thadha Praja’
the quality of faculty resembles in students. The quality of
administrative staff in colleges also affects the quality of higher
education. Hence, it is high time to introduce the managerial method
of HRD with all its paraphernalia in higher educational institutions
so as to assure proper human capital formation in higher education
in India.
Description:
Department of Applied Economics,
Cochin University of Science and Technology
Rajini, K M; Dr. Sankaranarayanan, K C(Cochin University of Science and Technology, October , 2009)
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Abstract:
The study is entitled “HUMAN RESOURCES DEVELOPMENT IN HIGHER EDUCATION IN KERALA”. The concept “Human Resource Development” is of high value in business and industry and has been used and applied since years. In industry and business the 'human' element is considred as a resource and hence its development and protection is very essential and inevitable. Of all the factors of production, human resource is the only factor having rational faculty and therefore, it must be handled with utmost care. Right recruitment, right training and right induction followed by faultless monitoring and welfare measures are but decisive factors in business and industry. Altogether there is a constant attention up on human factor there. But this is not a practice at all in education. So far there has not been any such measure of care and close watch and performance analysis of human resource on education front. This may be the main reason for lack of accountability in the sphere of education. The present study reveals the importance of introducing HRD practices in higher educational institutions in Kerala. In order to promise human capital formation through education, it is basic requirement. The higher educational institutions must follow the method of industry and commerce because education can be treated as an industry in service sector. There also we can follow the methods of right recruitment, right training and promotion, delegation, performance analysis and accountability checking of human resource. HRD is a powerful idea of transformation of human being into highly productive and contributing factor The HRD of students is the sum total of HRD of teachers. Reminding the primordial usage 'Yatha Raja Thadha Praja’ the quality of faculty resembles in students. The quality of administrative staff in colleges also affects the quality of higher education. Hence, it is high time to introduce the managerial method of HRD with all its paraphernalia in higher educational institutions so as to assure proper human capital formation in higher education in India.
Description:
Department of Applied Economics,
Cochin University of Science and Technology
Krishna Kumar,N; Sadasivan Nair,G(SCHOOL OF LEGAL STUDIES, 2004)
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Abstract:
Human rights are the basic rights of every individual against the state or any other public authority as a member of the human family irrespective of any other consideration. Thus every individual of the society has the inherent right to be treated with dignity in all situations including arrest and keeping in custody by the police. Rights of an individual in police custody are protected basically by the Indian Constitution and by various other laws like Code of Criminal Procedure, Evidence Act, Indian Penal Code and Protection of Human Rights Act. The term `custody' is defined neither in procedural nor in substantive laws. The word custody means protective care. The expression `police custody' as used in sec. 27 of Evidence Act does not necessarily mean formal arrest. In India with special reference to Kerala and evolution and development of the concept of human rights and various kinds of human rights violations in police custody in different stages of history. Human rights activists and various voluntary organisations reveals that there are so many factors contributing towards the causes of violations of human rights by police. Sociological causes like ambivalent outlook of the society with respect to the use of third degree methods by the police, economic causes like meager salary and inadequate living conditions, rampant corruption in police service, unnecessary political interference in the crime investigation, work load of police personnel without any time limit and periodic holidays, unnecessary pressure from superior police officers and the general public for speedy detection causing great mental strain to the investigating officers, defective system of recruitment and training, imperfect system of investigation and lack of public co-operation are some of the factors identified in the field survey towards the causes of violations of human rights in police custody.
Paulose,M M; Narayanan Nampoothiri,V N; Sreejith,P S(School of Engineering, May , 2006)
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Abstract:
The study aims to the hydrodynamic characteristics of swirling fluidized bed, using large particles (Geldart D-type) selected from locally available agricultural produce (coffee beans and black pepper). The important variables considered in the present study include percentage area of opening, angle of air injection and the percentage useful area of the distributor. A total of seven distributors have been designed and fabricated for a bed column of 300 mm, namely single row vane type distributors (15˚ and 20˚ vane angle), inclined hole type distributors (15˚ and 20˚ vane angle) and perforated plate distributors. The useful area of distributor of single row vane type, three now vane-type and inclined hole-type distributors are respectively 64%,91% and 94%. The hydrodynamic parameters considered in the present study include distributor pressure drop, air velocity, minimum fluidizing velocity, bed pressure drop, bed height and the bed behaviour.
It has been observed that, in general, the distributor pressure drop decreases with an increase in the percentage area of opening, Further, and increase in the area of opening above 17% will not considerably reduce the distributor pressure drop. In the present study, for the distributor with an area of opening 17%, and corresponding to the maximum measured superficial velocity of 4.33 m/s, the distributor pressure drop obtained was 55.25mm of water. The study on the bed behavior revealed that, in a swirling fluidized bed, once swirl motion starts, the bed pressure drop increases with superficial velocity in the outer region and it decreases in the inner region. This means that, with higher superficial velocity, the air might get by-passed through the inner boundary of the bed (around the cone). So, depending on the process for which the bed is used, the maximum superficial velocity is to be limited to have an optimum bed performance.
Resmi, T R; Dr. Jacob, Chacko(Cochin University of Science & Technology, July , 2004)
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Abstract:
The present study is an investigation to address relevant chemical aspects of
the three varied aquatic environments, such as mangroves, river and the estuary.
The sampling locations include a thick mangrove forest with high tidal activity, a
mangrove nursery with minimal disturbances and low tidal inundation, a highly
polluted riverine system and an estuarine site, as reference. Nutrients and
bioorganic compounds in the water column and surface sediment were estimated in
an attempt to understand the regeneration properties of these different aquatic
systems.Assessment of the trace metal pollution was also carried out.
Description:
Department of Chemical
Oceanography, Cochin University of Science
and Technology
Vinayan, V B; Dr. Seralathan, P(Cochin University of Science and Technology, February , 2009)
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Abstract:
The present investigation on " Hydrology, stratigraphy, and evolution of the palaeo-lagoon (Koleland basin)in the Central Kerala coast, India" is an integrated approach based on hydrogeological,geophysical,hydrochemical and stratigraphic aspects.A strong scientific data base of the study area is generated using interpretation of well observation and water quality analysis. The salient findings of the present study are given to provide a holistic picture on the hydrogeology (including groundwater resource and its quality),stratigraphy and evolution of the palaeo-lagoon
Paulose,C S; Dakshinamurti,K; Subah,Packer; Newman,L Stephens(Department of Biotechnology, 1986)
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Abstract:
Pyridoxal phosphate (PLP) is the coenzyme of various decarboxylases involved in the
formation of monoamine urotransmitters such as y-aminobulyric acid (GAE3A),
serotonin (5-HT) and dopamine. 1-lowever; in the pyridoxine-deficient rats GABA and
5-HT are decreased in various brain areas including the hypothalamus, with no change
in the catecholamine levels. Serotonin and GABA are known to be involved in blood
pressure control mechanisms. In this study adult Sprague-Dawley rats placed on a
pyridoxine-deficient diet for 8 weeks showed significant hypertension compared with
pyridoxine-supplemented controls. This was associated with a general sympathetic
stimulation. Treatment of deficient rats with a single dose of pyridoxine (10 mg/kg body
weight) reversed the blood pressure to normal levels within 24 h, with concomitant
restoration of hypothalamic 5-HT and GABA, as well as the return of plasma
norepinephrine to nornr;l levels. The results indicate that there is a cause-and-effect
relationship between pyridoxine deficiency and hypertension.
Ponnachan,P T C; Paulose,C S; Panikkar,K R(Department of Biotechnolgy, 1993)
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Abstract:
Alloxan induced diabetic animal model was
used to evaluate the antidiabetic effect of alkaloids
extracted from the leaves of Aegis marine/ose. The
alkaloid extract maintained the weight of animals
near to that of control ones - whereas there was a
decrease in the body weight of diabetic animals. A
significant increase in blood glucose (342. 14 -+-
14.89 mg/dl) was seen in diabetic animals but in
alkaloid treated group the blood glucose was lowered
(90: 12 +_5.81 mg/dl). There was no decrease in
blood urea arid sreum cholesterol in the alkaloid
treated group of diabetic animals. The liver
glycogen decreased in diabetic animals (1.27+.12
g/100g of wet tissue) and the treatment brought the
glycogen level to that of control ones (2.51 +.75
g/100 g of wet tissue). The result show that the
alkaloid extract has hypoglycaemic activity.