Ramachandran, A; Ramachandran, S(Engg Journals Publications, February 2, 2012)
[+]
[-]
Abstract:
In today's complicated computing environment, managing data has become the primary concern
of all industries. Information security is the greatest challenge and it has become essential to secure the
enterprise system resources like the databases and the operating systems from the attacks of the unknown
outsiders. Our approach plays a major role in detecting and managing vulnerabilities in complex
computing systems. It allows enterprises to assess two primary tiers through a single interface as a
vulnerability scanner tool which provides a secure system which is also compatible with the security
compliance of the industry. It provides an overall view of the vulnerabilities in the database, by
automatically scanning them with minimum overhead. It gives a detailed view of the risks involved and
their corresponding ratings. Based on these priorities, an appropriate mitigation process can be
implemented to ensure a secured system. The results show that our approach could effectively optimize
the time and cost involved when compared to the existing systems
Description:
International Journal on Computer Science and Engineering (IJCSE)Vol. 4 No. 02 February 2012
Mini, P P; Dr.Arunachalam, P(Cochin University Of Science And Technology, June , 2013)
[+]
[-]
Abstract:
Health insurance has become a necessity for the common man,
next to food, clothing and shelter. The financing of health expense is either catastrophic or sometimes even frequently contracted illnesses, is a
major cause of mental agony for the common man. The cost of care may
sometimes result in the complete erosion of the family savings or may
even lead to indebtedness as many studies on causes of rural
indebtedness bear testimony (Jayalakshmi, 2006). A suitable cover by way
of health insurance is all that is required to cope with such situations.
Health care insurance rightly provides the mechanism for both
individuals and families to mitigate the financial burden of medical
expenses in the present context. Hence a well designed affordable health
insurance policy is the need of the hour.Therefore, it is very significant to study the extent to which the
beneficiaries in Kerala make use of the benefits provided by a social health
insurance scheme like RSBY-CHIS. Based on the above pertinent points, this
study assumes national relevance even though the geographical area of the
study is limited to two districts of Kerala. The findings of the study will bring
forth valuable inputs on the services availed by the beneficiaries of RSBYCHIS
and take appropriate measures to improve the effectiveness of the scheme
whereby maximum quality benefit could be availed by the poorest of the poor
and develop the scheme as a real dawn of the new era of health for them
Description:
Department of Applied Economics,
Cochin University of Science and Technology
The fertility of the coastal and estuarine waters is of great concern because of its influence on the
productivity of these waters. Seasonal variations in the distribution of organic carbon, total nitrogen and
total phosphorus in the sediments of Kuttanad Waters, a part of the tropical Cochin Estuary on the south
west coast of India, are examined to identify the contribution of sediments to the fertility of the
aquatic systems. The adjoining region has considerable agricultural activity. The fresh water zones had
higher quantities of silt and clay whereas the estuarine zone was more sandy. Organic carbon, total
phosphorus and total nitrogen were higher in the fresh water zones and lower in the estuarine zones.
Total phosphorus and organic carbon showed the lowest values during monsoon periods. No significant
trends were observed in the seasonal distributions of total nitrogen.
Ratios of C/N, C/P and N/P, and the phosphorus and nitrogen content indicate significant modification
in the character of the organic matter. Substantial amounts of the organic matter can contribute to
reducing conditions and modify diagenetic processes
Gijo,Augustin; Shynu, S V; Mohanan, P; Aanandan,C K; Vasudevan, K(John Wiley & Sons, November , 2006)
[+]
[-]
Abstract:
A novel fixed frequency beam scanning microstrip leaky wave antenna is reported. The beam scanning at fixed frequency is achieved by reactive loading. Simulation and measured results shows frequency scanability of 80° as well as fixed frequency beam steering of 68° over the −10 dB impedance band of 4.56–5.06 GHz.
Deepa, Nair G; Jagadish, K S; Alex, Fraaij(Elsevier, March , 2006)
[+]
[-]
Abstract:
This paper discusses the properties of rice husk ash samples produced from different types of field ovens to compare the performance of the
ovens and to identify the most feasible method to produce a reactive pozzolana as an alternative to cement for building applications requiring
lower strengths. Different types of ashes are produced and long-term strength of rice husk ash pozzolanas with lime or cement is investigated to
suggest a sustainable affordable option in rural building applications, especially for rural housing in Kerala, a southern state of India
Manoj, P K; Nasar, K K(Ss International Research Network, March , 2013)
[+]
[-]
Abstract:
This study examines the behavioral factors that influence the Indian Investors to invest in the Real Estate Market. Among the various factors that affect the tendency of investors to invest in the real market, certain factors are greatly influenced the investors at greatest extend while others at least level. From this study it is revealed that motivation from the real estate developers and brokers (mean value- 3.46) is most influencing factor and happening of uncertain events (mean value- 1.75) is the least factor that influences the investors’ investment behavior. In this study, the behavioral factor like over confidence and the hypotheses regarding education, religion were analyzed and found that religious factor influences the Indian investors to invest in the real estate
Supriya, M H; Dr.Pillai, P R S(Cochin University of Science & Technology, October , 2007)
[+]
[-]
Abstract:
This thesis addresses one of the emerging topics in Sonar Signal Processing.,viz.the implementation of a target classifier for the noise sources in the ocean, as the operator assisted classification turns out to be tedious,laborious and time consuming.In the work reported in this thesis,various judiciously chosen components of the feature vector are used for realizing the newly proposed Hierarchical Target Trimming Model.The performance of the proposed classifier has been compared with the Euclidean distance and Fuzzy K-Nearest Neighbour Model classifiers and is found to have better success rates.The procedures for generating the Target Feature Record or the Feature vector from the spectral,cepstral and bispectral features have also been suggested.The Feature vector ,so generated from the noise data waveform is compared with the feature vectors available in the knowledge base and the most matching pattern is identified,for the purpose of target classification.In an attempt to improve the success rate of the Feature Vector based classifier,the proposed system has been augmented with the HMM based Classifier.Institutions where both the classifier decisions disagree,a contention resolving mechanism built around the DUET algorithm has been suggested.
Description:
Departement of Electronics,Cochin University of Science and Technology
James, Kurian; Saseendran Pillai, P R(December 8, 2008)
[+]
[-]
Abstract:
This paper introduces a simple and efficient method
and its implementation in an FPGA for reducing the odometric
localization errors caused by over count readings of an
optical encoder based odometric system in a mobile robot
due to wheel-slippage and terrain irregularities. The detection
and correction is based on redundant encoder measurements.
The method suggested relies on the fact that the
wheel slippage or terrain irregularities cause more count
readings from the encoder than what corresponds to the
actual distance travelled by the vehicle. The standard quadrature
technique is used to obtain four counts in each encoder
period. In this work a three-wheeled mobile robot
vehicle with one driving-steering wheel and two-fixed rear
wheels in-axis, fitted with incremental optical encoders is
considered. The CORDIC algorithm has been used for the
computation of sine and cosine terms in the update equations.
The results presented demonstrate the effectiveness
of the technique
Description:
Journal of Automation, Mobile Robotics & Intelligent Systems VOLUME 3, No 3 2009
Raghu, O; Dr. Jacob, Philip(Cochin University of Science and Technology, February , 2007)
[+]
[-]
Abstract:
Among the large number of photothcrmal techniques available, photoacoustics
assumes a very significant place because of its essential simplicity and the variety of
applications it finds in science and technology. The photoacoustic (PA) effect is the
generation of an acoustic signal when a sample, kept inside an enclosed volume, is
irradiated by an intensity modulated beam of radiation. The radiation absorbed by the
sample is converted into thermal waves by nonradiative de-excitation processes. The
propagating thermal waves cause a corresponding expansion and contraction of the
gas medium surrounding the sample, which in tum can be detected as sound waves by
a sensitive microphone. These sound waves have the same frequency as the initial
modulation frequency of light. Lock-in detection method enables one to have a
sufficiently high signal to noise ratio for the detected signal. The PA signal amplitude
depends on the optical absorption coefficient of the sample and its thermal properties.
The PA signal phase is a function of the thermal diffusivity of the sample.Measurement of the PA amplitude and phase enables one to get valuable information
about the thermal and optical properties of the sample.
Since the PA signal depends on the optical and thennal properties of the
sample, their variation will get reflected in the PA signal. Therefore, if the PA signal
is collected from various points on a sample surface it will give a profile of the
variations in the optical/thennal properties across the sample surface. Since the optical
and thermal properties are affected by the presence of defects, interfaces, change of
material etc. these will get reflected in the PA signal. By varying the modulation
frequency, we can get information about the subsurface features also. This is the basic
principle of PA imaging or PA depth profiling. It is a quickly expanding field with
potential applications in thin film technology, chemical engineering, biology, medical
diagnosis etc. Since it is a non-destructive method, PA imaging has added advantages
over some of the other imaging techniques. A major part of the work presented in this
thesis is concemed with the development of a PA imaging setup that can be used to
detect the presence of surface and subsmface defects in solid samples.Determination of thermal transport properties such as thermal diffusivity,
effusivity, conductivity and heat capacity of materials is another application of
photothennal effect. There are various methods, depending on the nature of the
sample, to determine these properties. However, there are only a few methods
developed to determine all these properties simultaneously. Even though a few
techniques to determine the above thermal properties individually for a coating can be
found in literature, no technique is available for the simultaneous measurement of
these parameters for a coating. We have developed a scanning photoacoustic technique that can be used to determine all the above thermal transport properties
simultaneously in the case of opaque coatings such as paints. Another work that we
have presented in this thesis is the determination of thermal effusivity of many bulk
solids by a scanning photoacoustic technique. This is one of the very few methods
developed to determine thermal effiisivity directly.
Description:
Dept.of Instrumentation,Cochin University of Science and Technology
Achamma, Kurian; Unnikrishnan, K P; Thomas Lee, S; Nampoori, V P N; Vallabhan, C P G(Taylor & Francis, 2002)
[+]
[-]
Abstract:
A sensitive method based on the principle of photothermal phenomena to realize optical
logic gates is presented. A dual beam thermal lens method using low power cw lasers in a
dye-doped polymer can be very effectively used as an alternate technique to perform the
logical function such as NAND, AND and OR.
Harikrishnan, K; Dr.George, Varghese K(Cochin University of Science and Technology, July 30, 2008)
[+]
[-]
Abstract:
In the absence of entry barrier or regulatory restrictions, Non Banking Financial
Companies frantically grew and accessed the public deposit without any
regulatory control. The deposit of NBFCs grew from Rs. 41.9 crore in 1971 to
53116.0 crore in 1997. This growth was the result of a combined effect of
increase in the number of NBFCs and increase in the amount of deposits. The
deposits amazed as above was invested in various assets especially that in
motor vehicles by these asset financing NBFCs. Various tactics were adopted
by these NBFCs and their agents for recovering the receivable outstanding from
such assets. Both central government and RBI were concerned about the
protection of depositors‘ interest and various committees were set up to frame a
comprehensive regulation for the functioning of these NBFCs.
Description:
School of Management Studies, Cochin University
of Science and Technology
The greatest damage inflicted by the recent recession has not necessarily been financial but emotional and psychological. There are a lot of direct and indirect societal challenges ,changes and oppurtunuties that were brought by recession everywhere including in India. In this paper an attempt is made to analyse such societal changes challenges and oppurtunities.