Artificial neural networks (ANNs) are relatively new computational tools that have found extensive utilization in solving many complex real-world problems. This paper describes how an ANN can be used to identify the spectral lines of elements. The spectral lines of Cadmium (Cd), Calcium (Ca), Iron (Fe), Lithium (Li), Mercury (Hg), Potassium (K) and Strontium (Sr) in the visible range are chosen for the investigation. One of the unique features of this technique is that it uses the whole spectrum in the visible range instead of individual spectral lines. The spectrum of a sample taken with a spectrometer contains both original peaks and spurious peaks. It is a tedious task to identify these peaks to determine the elements present in the sample. ANNs capability of retrieving original data from noisy spectrum is also explored in this paper. The importance of the need of sufficient data for training ANNs to get accurate results is also emphasized. Two networks are examined: one trained in all spectral lines and other with the persistent lines only. The network trained in all spectral lines is found to be superior in analyzing the spectrum even in a noisy environment.
Susan Mathew, K; Dr.Baby, M D(Cochin University of Science & Technology, February , 2011)
[+]
[-]
Abstract:
The shift from print to digital information has a high impact on all components of the academic library system in India especially the users, services and the staff. Though information is considered as an important resource, the use of ICT tools to collect and disseminate information has been in a slow pace in majority of the University libraries This may be due to various factors like insufficient funds, inadequate staff trained in handling computers and software packages, administrative concerns etc. In Kerala, automation has been initiated in almost all University libraries using library automation software and is under different stages of completion. There are not much studies conducted about the effects of information communication technologies on the professional activities of library professionals in the universities in Kerala. It is important to evaluate whether progress in ICT has had any impact on the library profession in these highest educational institutions. The aim of the study is to assess whether the developments in information communication technologies have any influence on the library professionals’ professional development, and the need for further education and training in the profession and evaluate their skills in handling developments in ICT. The total population of the study is 252 including the permanently employed professional library staff in central libraries and departmental libraries in the main campuses of the universities under study. This is almost a census study of the defined population of users. The questionnaire method was adopted for collection of data for this study, supplemented by interviews of Librarians to gather additional information.
Library Professionals have a positive approach towards ICT applications and services in Libraries, but majority do not have the opportunities to develop their skills and competencies in their work environment. To develop competitive personnel in a technologically advanced world, high priority must be given to develop competence in ICT applications, library management and soft skills in library professionals, by the University administrators and Library associations. Library science schools and teaching departments across the country have to take significant steps to revise library science curriculum, and incorporate significant changes to achieve the demands and challenges of library science profession.
Description:
Department of Computer Science,
Cochin University of Science and Technology
Balakrishnan,K; Chandrasekharan Pillai,K N(School of Legal studies, 2004)
[+]
[-]
Abstract:
This study is an attempt to look at the impact of international norms on the criminal justice administration in India. It has been confined to the criminal justice administration since it is here that the concept of sovereignty is affected the most. The study is intended to give a fair idea as to the position India holds in the matter of implementation of international norms in the area of criminal justice administration and the areas that require urgent attention. The study suggests that the country’s system is on the right track towards the implementation of the international norms. The position of law in India and the requirements under international norms with respect to criminal justice administration have been studied by considering the same at three stages – pre trial, trial and post trial stages. The question as to whether they comply with the international standards and the approaches of the court has been inquired into this study
Smitha, T H; Dr.Sankaranarayanan, K C(Cochin University of Science & Technology, 2010)
[+]
[-]
Abstract:
The present study was an attempt to analyze systematically the techniques of monetary control measures with its relevance and changing importance and to find out their effectiveness in the Indian context especially to achieve the thriving objectives of price stability and economic growth.There is definite and remarkable economic impact of monetary policy on Indian economy in the post-reform period. The importance of monetary policy has been increasing year after year. Its role is very relevant in attaining monetary objectives, especially in managing price stability and achieving economic growth. Along that, the use and importance of monetary weapons like Bank rate, CRR, SLR, Repo rate and Reverse Rate have increased over the years. Repo and Reverse Repo rates are the most frequently used monetary techniques in recent years. The rates are varied mainly for curtailing inflation and absorb the excess liquidity and hence to maintain price stability in the economy. Thus, this short-time objective of price stability is more successful on Indian economy rather than other long-term objectives of development.Monetary policy rules can be active or passive. The passive rule is to keep the money supply constant, which is reminiscent of Milton Friedman’s money growth rule. The second, called a price stabilization rule, is to change the money supply in response to changes in aggregate supply or demand to keep the price level constant. The idea of an active rule is to keep the price level and hence inflation in check. In India, this rule dominates our monetary policy. A stable growth is healthy growth.
Description:
Department of Applied Economics,Cochin University of Science and Technology
Babu, S; Dr. Krishnamoorthy, A(Cochin University of Science and Technology, May , 2007)
[+]
[-]
Abstract:
In this thesis we have studied a few models involving self-generation of priorities.
Priority queues have been extensively discussed in literature. However, these are situations involving priority assigned to
(or possessed by) customers at the time of their arrival. Nevertheless, customers
generating into priority is a common phenomena. Such situations especially arise
at a physicians clinic, aircrafts hovering over airport running out of fuel but waiting
for clearance to land and in several communication systems. Quantification of these
are very little seen in literature except for those cited in some of the work indicated
in the introduction. Our attempt is to quantify a few of such problems. In doing
so, we have also generalized the classical priority queues by introducing priority
generation ( going to higher priorities and during waiting). Systematically we have
proceeded from single server queue to multi server queue. We also introduced customers with repeated attempts (retrial) generating
priorities. All models that were analyzed in this thesis involve nonpreemptive
service. Since the models are not analytically tractable, a large number
of numerical illustrations were produced in each chapter to get a feel about the
working of the systems.
Description:
Department of Mathematics,
Cochin University of Science and Technology
Venu,G Nair; Mohankumar,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.
Veena Gopalan, E; Al-Omari, I A; Malini, K A; Joy, P A; Sakthi Kumar, D; Yasuhiko, Yoshida; Anantaraman, M R(Elsevier, April , 2009)
[+]
[-]
Abstract:
Mn1-xZnxFe2O4 nanoparticles (x=0-1) were synthesized by wet chemical co-precipitation techniques. X-ray diffraction, transmission electron microscopy and high-resolution transmission electron microscopy were effectively utilized to investigate the different structural parameters. The elemental analysis was conducted using energy-dispersive spectrum and inductively coupled plasma analysis. The magnetic properties such as magnetization and coercivity were measured using vibrating sample magnetometer. The observed magnetization values of the nanoparticles were found to be lower compared to the bulk counterpart. The magnetization showed a gradual decrease with zinc substitution except for a small increase from x=0.2 to 0.3. The Curie temperature was found to be enhanced in the case of ferrites in the nanoregime. The variation in lattice constant, reduced magnetization values, variation of magnetization with zinc substitution, the presence of a net magnetic moment for the zinc ferrite and the enhancement in Curie temperature in Mn1-xZnxFe2O4 all provide evidence to the existence of a metastable cation distribution together with possible surface effects at the nanoregime.
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
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
Raveendranath, U; Biju Kumar, S; Mathew, K T(IETE Technical Review, September , 1999)
[+]
[-]
Abstract:
The performance of circular, rectangular and cross irises for the coupling of microwave power
to rectangular waveguide cavity resonators is discussed. For the measurement of complex
permittivity of materials using cavity perturbation techniques, rectangular cavities with high
Q-factors are required. Compared to the conventional rectangular and circular irises, the cross Iris
coupling structure provides very high loaded quality factor for all the resonant frequencies. The
proposes cross iris coupling structure enhances the accuracy of complex permittivity measurements.
Ethylene-propylene-diene rubber (EPDM) and isobutylene-isoprene rubber (IIR) were
compounded, precured to a low degree, and then were blended with natural rubber (NR).
The compounding ingredients for NR were then added and the final curing was done. NR/
EPDM and NR/IIR blends, prepared using this method, were found to possess much
improved mechanical properties as compared to their conventional counterparts. The optimum
precuring crosslink density that has to be given to the EPDM and IIR phases has
been determined.
Venugopal,P; Haridas,P; Madhu Pratap,M; Rao,T S S(Indian Journal of Marine sciences, January 12, 1979)
[+]
[-]
Abstract:
Incidence of red water along the Kerala coast at 2 localities, off Quilon and Cochin, in August 1976 and 1977 is reported.
High concentrations of Noctiluca miliaris (up to 7.71 x 105/m3 in 1977) are associated with these occurrences. They completely
dominate the plankton community contributing > 90 % of the numbers. High production of diatoms initiated by nutrient-rich
and fairly high saline upwelled waters appears to cause the bloom of the dinoflagellate Noctiluca