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Sundar A.T.,Dr Rangarajan Dr Sakunthala Engineering College | Rajagopal G.,Government Arts College | Murugavel S.,Vellore Institute of Technology | Pandi A.S.,Presidency College at Chennai
Acta Crystallographica Section E: Structure Reports Online | Year: 2010

In the title compound, C17H18I2N 2O, the dihedral angle between the aromatic rings is 5.4 (1)°. An intra-molecular O - H⋯N hydrogen bond generates an S(6) ring motif. The crystal packing is stabilized by C - H⋯π and π-π inter-actions [centroid-centroid distance = 3.697 (1) Å]. Source

Anuradha P.,Dr Rangarajan Dr Sakunthala Engineering College | Anuradha P.,Dymos Lear India Private Ltd.
IET Conference Publications | Year: 2011

Intelligent transportation systems have become increasingly important for the public transportation, industries and service sectors. The Economy in big cities is soaring today, and the growing traffic has become a serious challenge. In response for that to provide a solution to improve the traffic condition zigbee based vehicle monitoring is used. This paper seeks to design the RFID and zigbee based system architecture at the network level for tracking the vehicle information which has been sent to the centralized server. The aim of the design is to provide a simple and easy solution to track the location of the moving vehicle. Compared to the old systems, Zigbee based network architecture is able to provide information about the vehicle accurately. The vehicle will be having a unique RFID tag (Radio Frequency Identification). The RFID reader is placed in particular places. For the beneficial features of RFID, we integrate RFID readers into the Vehicle tracking Information System. This RFID reader can check or collect the data and the information is given to the control station through the Zigbee protocol. The Zigbee protocol is used for the messaging service between the control station and the vehicle. Source

Swaroop G.V.,St Peters University | Murugaboopathi G.,Dr Rangarajan Dr Sakunthala Engineering College | Kalaiselvan S.A.,St Peters University
2014 International Conference on Science Engineering and Management Research, ICSEMR 2014 | Year: 2014

One of the main issues in MANET is security. Since MANET characteristics are dynamic, it make vulnerable to various severe attacks. Cryptography can provide a strong solution for most vulnerability. Various approaches are discussed in the literature review. From them, ID-based cryptography and key management approaches are utilized for reducing the cost and time. This paper presents a UDRPG - [Unique-Dynamic-Random-Password-Generation] method to generate unique IDs for entire nodes in the network. Each node should submit their unique random key while communication in the network. The simulation results show that UDRPG can give better results than the existing approaches. © 2014 IEEE. Source

Rajamani V.,Dr Rangarajan Dr Sakunthala Engineering College | Babu P.,PSNA College of Engineering and Technology
International Review on Computers and Software | Year: 2014

Histogram equalization is a well known technique used for contrast enhancement. However, it changes the brightness of an image and hence, not suitable for consumer electronic products. This paper proposes a new technique, Bi Level Histogram Modification using Genetic Algorithm (BLHM) for the purpose of enhancing the contrast as well as preserving details for any given input image. The basic idea of this technique is partition the input image histogram into two sub-histograms based on its mean. Then, a bi-criteria optimization problem is formulated to satisfy the aforementioned requirements and the two sub-histograms are modified by selecting the optimal contrast enhancement parameters. Finally, the union of two modified sub-histograms produces a contrast enhanced and details preserved output image. While formulating the optimization problem, Genetic Algorithm is employed to control the degree of enhancement. This mechanism enhances the contrast of the input image better than its existing contemporary HE methods. The performance of the proposed method is measured in terms of Discrete Entropy and Contrast Improvement Index. © 2014 Praise Worthy Prize S.r.l.-All rights reserved. Source

Dhananchezian M.,Dr Rangarajan Dr Sakunthala Engineering College | Pradeep Kumar M.,Anna University
International Journal of Applied Engineering Research | Year: 2011

The most emerging needs of modern metal cutting operation are increase material removal rate, good work surface finish and low tool wear. These objectives can be achieved by reducing cutting temperature in the cutting zone using proper cooling system. Current work involved experimental study of the effect of liquid nitrogen was applied through a holes made in the cutting tool insert during turning of AISI 1045 steel. The effects of cryogenic cooling by liquid nitrogen on cutting temperature, cutting force, surface roughness and tool wear have been compared with conventional machining. It has been observed that in cryogenic cooling method, the cutting temperature was reduced to 47 - 58% and the cutting force was decreased by 15 - 27% over wet machining. Cryogenic cooling using liquid nitrogen reduced the flank wear to a maximum of 37% over wet machining. The experimental results of the present work indicate substantial benefit of cutting force, surface roughness and tool wear through reduction in cutting zone temperature. © Research India Publications. Source

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