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Sekar A.C.,St. Josephs College | Radhika S.,Sathyabama University | Anand K.,SMK Fomra Institute of Technology
European Journal of Scientific Research | Year: 2011

The main aim of this paper is to provide stronger security for communication over the Internet by enhancing the strength of the AES algorithm. Rijndael's algorithm was selected as the Advanced Encryption Standard. The AES algorithm was believed to provide much more security without any limitations. But, recently some breaking methods on the AES have been found by cryptanalysts. In AES algorithm, the number of rounds involved in the encryption and decryption depends on the length of the key and the number of block columns. So, the number of rounds is increased to improve the strength of the AES. The strength of the AES algorithm is enhanced by increasing the key length to 512 bit and thereby the number of rounds is increased in order to provide a stronger encryption method for secure communication. Code optimization is done in order to improve the speed of encryption and decryption using the 512 bit AES. © EuroJournals Publishing, Inc. 2011. Source

Barathi M.,SMK Fomra Institute of Technology | Valli S.,Anna University
Journal of Computer Science | Year: 2011

Problem statement: Search queries are short and ambiguous and are insufficient for specifying precise user needs. To overcome this problem, some search engines suggest terms that are semantically related to the submitted queries, so that users can choose from the suggestions based on their information needs. Approach: In this study, we introduce an effective approach that captures the user's specific context by using the WordNet based semantic relatedness measure and the measures of joint keyword occurrences in the web page. Results: The context of the user query is identified and formulated. The user query is enriched to get more relevant web pages that the user needs. Conclusion: Experimental results show that our approach has better precision and recall than the existing methods. © 2011 Science Publications. Source

Sridhar T.M.,SMK Fomra Institute of Technology
Materials Technology | Year: 2010

The development of biomaterials for the repair or replacement of hard tissue is a challenging and a promising area of research. Engineering cell and tissue behaviour at biomaterial surfaces at the nanoscale level can be accomplished by chemically modifying surfaces with biologically active macromolecules or physically modifying the surface topography at the nanoscale. Bioceramics have been used very successfully within the human body for many years. They are commonly used in orthopaedic surgery and dentistry but they are potentially suitable for a wide range of important applications within the medical device industry. The fabrication, microstructure and properties of this highly active area of research and the significance of a range of nanobioceramic coatings by electrochemical techniques are discussed. Bio-inspired materials open new approaches for manufacturing implants for bone replacement. The application of these nanobioceramic coating techniques to develop biomimetic coatings and scaffolds along with tissue engineering would set new trends in health care delivery system. The clinical applications of bioceramic coatings in joint replacement, bone grafts, tissue engineering, drug delivery systems and dentistry would serve as a useful resource for biomaterials scientists and engineers, as well as for clinicians and the academic community. © 2010 Maney Publishing. Source

Selvi R.,SMK Fomra Institute of Technology | Suresh A.,Saengineering College
International Journal of Applied Engineering Research | Year: 2014

Intrusion Detection Systems (IDSs) examine more features to detect the known and unknown attacks in computer network. Very few feature selection methods may be redundant or contribute something to the detection process, do not achieve greater detection accuracy and also not time consume. For reducing the time taken and achieving better classification accuracy through feature selection process, we introduced a new incremental model for effective intrusion detection. This proposed model is combining an incremental feature selection algorithm and classification algorithm. We propose, a new Incremental Feature Selection Algorithm called CRF and Fuzzy Rough Set based Feature Selection algorithm (IFSA) and the existing classification algorithm called Fuzzy ARTMAP Neural Classifier. The experimental results of the proposed model show that this model detects the intruders with less time and high detection rate when tested with KDD’99 cup data set. © Research India Publications. Source

Kumar V.S.S.,Anna University | Ezilarasan C.,SMK Fomra Institute of Technology
Materials Science Forum | Year: 2013

Glass fiber reinforced plastics (GFRP) are finding increased applications in various engineering fields such as aerospace, automotive, electronics and other industries. Among the various machining processes, drilling is the important process, mainly used in joining of composite structures. As a consequence, the number of authors have discussed on the aspects concerning the machiniability of GFRP composites. In this study, a review has been done on the machinability of drilling of GFRP composites through the various aspects such as tool materials and geometry, machining parameters and their influence on thrust force, torque, surface roughness, delamination factor and hole damage. Additionally, the modeling of the machining parameters on drilling of GFRP composites using response surface methodology (RSM), artificial neural network (ANN), fuzzy logic, NSGA-II etc., have been discussed. The results indicated that the thrust force, torque and surface roughness need to be controlled simultaneously for delamination free drilling. Further, there is a need to create a multi-response optimization in drilling of GFRP composites using different optimization techniques for obtaining optimum results of thrust force, torque, surface roughness and delamination free drilling. © (2013) Trans Tech Publications, Switzerland. Source

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