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Mathew J.,Prajyoti Niketan College | John K.K.A.,Cochin University of Science and Technology | Abraham M.,Cochin University of Science and Technology | Mathew T.,Cochin University of Science and Technology
Proceedings of 2015 IEEE 9th International Conference on Intelligent Systems and Control, ISCO 2015 | Year: 2015

A modified bow-tie dipole antenna fed by a 50 coaxial cable is proposed for dual band operations. By asymmetrically cutting the lateral sides of the conventional bow-tie dipole antenna results in two operating frequencies at 915 MHz and 2.45 GHz. The main attraction of this novel antenna is improved band width with a considerable antenna size reduction for dual band operation particularly in RFID bands. Simulated results with CST microwave Studio are presented along with measured results and good agreement between them is obtained. © 2015 IEEE. Source


Binu P.C.,Prajyoti Niketan College | Babu A.P.,Kannur University
Proceedings - 12th International Conference on Frontiers in Handwriting Recognition, ICFHR 2010 | Year: 2010

This paper deals with the recognition of handwritten Malayalam characters. Most of the pattern recognition systems will go through the steps like preprocessing, feature extraction and classification. Here, we have presented edge detection in the preprocessing stage. It is important that the edge detector should give the character edges without fragmentation and displacement of edge pixels. Canny edge detector is used to produce thinned edges of the character. But for high resolution images, it gives spurious branches corresponding to noise and texture of the image. So a technique is applied prior to this process to focus the edge regions using nonlinear anisotropic diffusion via partial differential equations (PDE). Even though this method helped to get accurate edge points, the final result shows some broken edges. These broken parts are then linked using ant colony optimization (ACO) method. This image is further partitioned into different zones for the purpose of feature extraction. Multi layer perceptron (MLP) used these features and classified the characters with a recognition accuracy of 95.16%. © 2010 IEEE. Source


Ragi P.M.,Christ College | Umadevi K.S.,Prajyoti Niketan College | Nees P.,Christ College | Jose J.,Christ College | And 2 more authors.
Microwave and Optical Technology Letters | Year: 2012

The authors present the fabrication method and resonant properties of a flexible split-ring resonator (SRR) metamaterial structure at microwave frequencies. The structure is fabricated by chemical etching on a copper film glued on a thin low loss polymer substrate. The resonant properties using a single circular SRR between two monopole antennas were studied and compared with SRR fabricated on rigid circuit board. © 2012 Wiley Periodicals, Inc. Source


Anto M.M.,Prajyoti Niketan College
Research Journal of Pharmaceutical, Biological and Chemical Sciences | Year: 2015

Coronary heart disease (CHD) is epidemic in India and one of the major causes of disease-burden and deaths. As a chronic disease it may confront a patient with numerous threats and challenges. Several studies have shown that identifying resilient factors are important in the psychosocial management of the patients. The aim of the study was to identify cognitions about illness, self efficacy and its relation to anxiety and depression. Sample consisted of 43 CHD patients 22 in Group 1(diagnosed within 3 months) 21 in Group2 (diagnosed more than 3 mths -up to 1yr).Results shows that both groups showed significant statistical difference in many dimensions. Helplessness was more in Group 2. Also anxiety and depression was slightly more in Group 2.Compared to Group 2, for Group1 there was significant negative correlation between acceptance, perceived benefits and self efficacy with anxiety and depression. This study has implication for enhancing resilient factors in order to enhance the psychological management in case of life style disorders. Source


Santhosh A.J.,Prajyoti Niketan College
Research Journal of Pharmaceutical, Biological and Chemical Sciences | Year: 2015

An unwed mother is a girl or woman who is not legally married to a man by whom she has conceived a child. Research indicates that single mothers experience excessive stress and that the stress is a result of various factors like of social isolation, lack of family support, the need to provide financially for the family. The purpose of this study was to assess the psychological wellbeing of unwed mothers in comparison with wed mothers. The first objective was to find out the level of depression among wed and unwed mothers. The study is also aimed to find out the different dimensions of social support of wed and unwed mothers and the relationship among the level of depression, and social support in wed and unwed mothers. The sample for the present study consisted of two groups: wed mothers and unwed mothers. The wed and unwed mothers are comprised of 30 each between the ages of 20-35 years. Tools used were Beck depression inventory (BDI-II) and the multidimensional scale oferceived social support. To know the difference between the wed and unwed t-test was administered. Pearson product-moment correlation coefficient was administered to know the correlation between the depression level and different dimensions of social support. Result reveals that there is much higher depression level in the unwed mothers. 36.66% of the unwed mothers were found to have severe depression where as none of the wed mothers had the same. Social support from the significant other, family and friends were found to be lower in the unwed mothers compared to wed mothers. The result shows that a very high negative correlation is obtained in different dimensions of social support and depression, indicating that when the social support decreases the level of depression increases. Source

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