Karunakaran S.,Sathyabama University |
Indumathy D.,Rajalakshmi Engineering College |
Rani Hemamalini R.,Stpeters Engineering College
2013 IEEE International Conference on "Smart Structures and Systems", ICSSS 2013 | Year: 2013
Drastic developments are being achieved in the field of science and technology. Every innovation has got its merits and demerits. Compatibility is an important factor along with performance when it comes to technology. Compatibility can be achieved by using compression techniques. These techniques play a vital role in reducing the size of the device or chip, along with increasing the power efficiency and clock rate. There are various compression algorithms present which are very much helpful in achieving Compatibility along with achieving higher efficiency. Some of the compression algorithms that are available are Huffman coding algorithm, SAMC algorithm, LZW algorithm and so on. Based on the application and requirements the required algorithms can be chosen. In this paper we are about to use these algorithms to compare these algorithms with each other's and evaluate its performance. © 2013 IEEE.
Sumathi S.,Sathyabama University |
Rani Hemamalini R.,Stpeters Engineering College
Communications in Computer and Information Science | Year: 2012
In this paper, a new efficient method for individual identification, using palm print features based on Discrete Wavelet Transform (DWT) is proposed. Biometric system is designed to identify the people accurately, based on human physiological features. Palm print serves as reliable human identifier because the palm print patterns are not duplicated by others, even in monozygotic twins. Wavelet coefficients are used as features for identifying the individual and using Support Vector Machine (SVM) classifier for the classification purpose. Use reduced wavelet coefficients by specified window size placed at center of the image for palm print identification. Experiments are conducted for various window sizes and chose the best window size which gives good recognition rate and better result in substantial savings in storage and computation time. Experimental results show promising performance with the proposed methods from Hong Kong PolyU Multispectral Palm print database. © 2012 Springer-Verlag.
Saravanakumar K.,Stpeters Engineering College |
Lavanya T.G.,Sri Venkateswara College of Engineering |
Baskaran R.,St. Joseph's College |
Kubendran T.R.,Anna University
Journal of the Iranian Chemical Society | Year: 2012
The values of density, viscosity, and ultrasonic velocity for the binary liquid mixture of benzaldehyde with bromobenzene have been measured over the entire range of composition at 303.15, 308.15, and 313.15 K. These values have been used to calculate the excess molar volume (V E), deviation in viscosity (δη), deviation in velocity (δU), deviation in isentropic compressibility (δβ s), excess internal pressure (δπ), excess intermolecular free length (δL f), and excess acoustic impedance (δZ). McAllister's three-body-interaction model is used for correlating kinematic viscosity of binary mixtures. The excess values were correlated using the Redlich-Kister polynomial equation to obtain their coefficients and standard deviations. The thermo-physical properties (density, viscosity, and ultrasonic velocity) under the study were fitted to the Jouyban-Acree model. © 2012 Iranian Chemical Society.
Nagaveni S.,Stpeters Engineering College |
Vasishth A.,University of Punjab |
Radha Krishna T.,University of Hyderabad
International Journal of ChemTech Research | Year: 2015
This paper intends to integrate the current information about that data on Acoustic and Elastic parameters of Plasma of Normal Human blood. The parameters such as the ultrasonic velocity, Absorption coefficient, Modulus of elasticity and Loss modulus were calculated and tabulated for normal and diabetic mellitus of plasma its constituents at different frequency ranges. This paper reveals that tabulated data on specific gravity of plasma, water, erythrocytes of human blood. In the present investigation generally maximum velocity of blood is meant by velocity of blood is streaming in the capillary tube having infinite length is sustained from the graph. The capillary viscometry is the most prescribed method for evaluating the viscosity in liquids .In Human Physiology we are fascinated with specific characteristics and distinctive mechanisms of human body that make it a living being. So human being is actually automation and it is a part of automatic sequence of life, these special attributes allow us. In diabetic mellitus there is sufficient evidence that the elevated blood viscosity is a pathaogenetic factor of diabetic microangiopathy, altering microcirculation and leading to insufficient tissue nutrition. This paper mainly keen observation of that tabulated the data on ultrasonic velocity in different constituents of noramal and diseased blood. Generally blood sample is centrifuged and separated the plasma in this specific gravity was found for the five samples and it furnishes very good agreement with the standard values. This study is essential and developed in Biological and pathological division. © 2015, Sphinx Knowledge House. All rights reserved.
Shivakumar R.,Salem College |
Lakshmipathi R.,Stpeters Engineering College |
Panneerselvam M.,Anna University
International Review of Electrical Engineering | Year: 2010
Improvement of Power System Stability is the most important issue in Modern Interconnected Power Systems. With the increasing Complexity of Power System, Electromechanical Oscillations are becoming one of the major problem affecting the System Stability. This paper provides a systematic approach to design an Optimal Controller to damp the Electromechanical Oscillations based on Bio Inspired Genetic Algorithm (GA) and Particle Swarm Optimization (PSO) Techniques. The Proposed Controller design is based on Power System Damping Factor based Objective function formulation to compute the optimal controller parameters, which aid in enhancing System Stability. To validate the Robustness and effectiveness of the Optimal Controller, Non linear Time domain Simulations has been carried out under various system loading conditions and also implementing dynamic Parameter variations of the system model considered. A detailed Comparative study is also done to show the superiority of the Bio Inspired algorithms based controller over the Conventional Lead lag controller. © 2010 Praise Worthy Prize S.r.l. - All rights reserved.
Shivakumar R.,Salem College |
Panneerselvam M.,Salem College |
Lakshmipathi R.,Stpeters Engineering College
International Journal of Engineering and Technology | Year: 2010
Power System Oscillation Controllers (PSOC) are added to Excitation systems to enhance the damping during Low frequency oscillations. This paper provides a systematic approach to damp the low frequency oscillations observed in Three Machine Nine Bus Multimachine Power Systems based on Genetic Algorithm(GA).The Optimal Controller design problem is formulated as an optimization criterion comprising of Time domain based objective function to compute the optimal controller parameters. The main objective is to minimize the integral squared error involving rotor speed deviation and power angle deviations. To validate the effective damping action of the proposed controller, Non linear Time domain simulations has been carried out in this work under wide variations in the system loading conditions. Also a comparative study has been done to show the robustness of the Genetic based controller over the conventionally designed Lead Lag controller.