Book Chapters
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Item Autonomic computing: A fuzzy control approach towards application development(IGI Global, 2011) Harish, H.S.; Chandra Sekaran, K.C.Autonomic computing (Salehie & Tahvildari, 2005) is a new paradigm to design, develop, deploy, and manage systems by taking inspiration from strategies used by biological systems. An autonomic system has four major characteristics: self-configure, self-heal, self-optimize, and self-protect. The autonomic computing architecture provides a blueprint for developing feedback control loops for self-managing systems. This observation suggests that control theory might provide guidance as to the structure of and requirements for autonomic managers. E-commerce is an area where an Autonomic Computing system could be very effectively deployed. E-commerce has created demand for high quality information technology services, and businesses seek ways to improve the quality of service in a cost-effective way. Properly adjusting tuning parameters for best values is time-consuming and skills-intensive. This chapter describes simulation environments to implement approaches to automate the tuning of MaxClients parameter of Apache web server using fuzzy controllers. These are illustrations of the self-optimizing characteristic of an autonomic computing system. © 2012, IGI Global.Item Design and Evaluation of Hydro-Pneumatic Friction Damper Suspension System(IGI Global, 2012) Gorabal, S.V.; Kurbet, S.N.; Appukuttan, K.K.Perceived comfort level and ride stability are the two most important factors in the evaluation of suspension system in a mobile vehicle. It is extremely difficult to simultaneously maintain a high standard of vehicle ride, handling and body control in the vehicle by using conventional passive suspension system. However, the use of active suspensions would result in better comforts than the passive ones. This paper presents the design and analysis of a pneumatic friction damper and hydro-pneumatic friction damper. A non-linear quarter car model is developed, which includes pneumatic actuation by pressure regulation. The performance of the proposed model was assessed in terms of level of vibration reduction. Simulations on a prototype model show that the proposed system has good performance and robustness. © 2013 by IGI Global.Item Proactive models for mitigating internet denial-of-service/distributed denial-of-service attacks(World Scientific Publishing Co., 2010) Nagesh, H.R.; Chandra Sekaran, K.C.The enormous growth of the Internet has had a huge impact on users' daily lives, providing us with a wealth of information easily and conveniently.At the same time, this accessibility has made the Internet an easy target for users who wish to disrupt the flow of information or exploit the Web for personal gain. Those who compromise the flow of information or access information in an unauthorized manner are called attackers.Many tools are now available for attackers to test the vulnerability of Internet. © 2010 by World Scientific Publishing Co. Pte. Ltd. All Rights Reserved.Item Development of probabilistic simulation model for production optimization in open pit mines(Nova Science Publishers, Inc., 2011) Raj, M.G.; Vardhan, H.; Rao, Y.V.Large mechanized open pit operations can become more efficient and competitive without additional costs by improving the productivity of the existing machinery. This can be achieved by ensuring higher availability and utilization of the equipment The present paper deals with truck dispatch system using a variety of strategies to enhance the production capacity of a given set of equipment (shovels and trucks) by way of continuous dispatching of trucks. A discrete event probabilistic simulation program has been developed to demonstrate the production potential of an operating mine. It can accommodate any number of shovels and trucks of different capacities. The characteristic features of each truck and shovel can be individually specified to reflect the reality of actual working conditions. The model was tested on a hypothetical mine and a real case to verify the logic used in the program development. Subsequently, the model was implemented in two real mines to investigate the production potential. It was observed that substantial scope exists for productivity improvement when the mines were operating on a flexible mode. © 2012 by Nova Science Publishers, Inc. All rights reserved.Item Wetting kinetics and quench severity of selected vegetable oils for heat treatment(CRC Press, 2010) Prabhu, K.N.[No abstract available]Item Chalcones: Possible new materials for third-order nonlinear optics(Nova Science Publishers, Inc., 2011) Kiran, A.J.; Chandrasekharan, K.; Kalluraya, B.; Shashikala, H.D.'Search for potential materials' for third-order nonlinear optics has been of continuing interest in recent years. In this context, organic molecules are increasingly being recognized as the materials of the future because their molecular nature combined with the versatility of synthetic chemistry can be used to alter and optimize molecular structure to maximize third order nonlinear response. Chalcones have received considerable interest as materials for second-order nonlinear optical applications due to their ability to crystallize in noncentrosymmetric structure and their blue light transmittance. Being charge transfer compounds, chalcones can also possess large thirdorder nonlinearities due to their π-conjugated structure. In this article, we discuss the structure-nonlinear response relationship among a few chalcones and the possibility of using them for third-order applications. A meager or no work, to our knowledge, has been done so far on these molecules in this regard. Z-scan and degenerate four-wave mixing techniques were employed to investigate third-order optical nonlinearities of chalcone derivatives. Some of these molecules possess large χ (3) of magnitude as high as 10-12 esu and exhibit strong optical limiting properties. Possible mechanisms that are responsible for optical limiting property of these molecules have been discussed. . © 2011 by Nova Science Publishers, Inc. All rights reserved.Item Reliable transmission of retinal fundus images with patient information using encryption, watermarking, and error control codes(World Scientific Publishing Co., 2011) Nergui, M.; Sripati, A.U.; Acharya, A.U.; Yu, W.; Dua, S.[No abstract available]Item Solid-State Fermentation vs Submerged Fermentation for the Production of L-Asparaginase(Academic Press Inc. apjcs@harcourt.com, 2016) Doriya, K.; Jose, N.; Gowda, M.; Kumar, D.S.L-Asparaginase, an enzyme that catalyzes L-asparagine into aspartic acid and ammonia, has relevant applications in the pharmaceutical and food industry. So, this enzyme is used in the treatment of acute lymphoblastic leukemia, a malignant disorder in children. This enzyme is also able to reduce the amount of acrylamide found in carbohydrate-rich fried and baked foods which is carcinogenic to humans. The concentration of acrylamide in food can be reduced by deamination of asparagine using L-Asparaginase. L-Asparaginase is present in plants, animals, and microbes. Various microorganisms such as bacteria, yeast, and fungi are generally used for the production of L-Asparaginase as it is difficult to obtain the same from plants and animals. L-Asparaginase from bacteria causes anaphylaxis and other abnormal sensitive reactions. To overcome this, eukaryotic organisms such as fungi can be used for the production of L-Asparaginase. L-Asparaginase can be produced either by solid-state fermentation (SSF) or by submerged fermentation (SmF). SSF is preferred over SmF as it is cost effective, eco-friendly and it delivers high yield of enzyme. SSF process utilizes agricultural and industrial wastes as solid substrate. The contamination level is substantially reduced in SSF through low moisture content. Current chapter will discuss in detail the chemistry and applications of L-Asparaginase enzyme and various methods available for the production of the enzyme, especially focusing on the advantages and limitations of SSF and SmF processes. © 2016 Elsevier Inc.Item Security issues in mobile ad hoc networks: A survey(IGI Global, 2015) Kumar, S.; Dutta, K.A Mobile Ad hoc NETwork (MANET) is a self-organizing, infrastructure-less network of mobile nodes connecting by wireless links. In operation, the nodes of MANETs do not have a central control mechanism. It is known for its properties of routable network, where each node acts as a router to forward packets to other specific nodes in the network. The unique properties of MANET have made it useful for large number of applications and led to a number of security challenges. Security in the mobile ad hoc network is a very critical job and requires the consideration of different security issues on all the layers of communication. The countermeasures are the functions that reduce or eliminate security vulnerabilities and attacks. This chapter provides a comprehensive study of all prominent attacks in Mobile Ad Hoc Networks described in the literature. It also provides various proactive and reactive approaches proposed to secure the MANETs. Moreover, it also points to areas of research that need to be investigated in the future. © 2016, IGI Global. All rights reserved.Item Equation of Phonon Radiative Transport: Formulation and Analysis by the Weighted Residual Method(Springer Science+Business Media, 2014) Wheeler, V.M.; Shankar, N.; Tamma, K.K.[No abstract available]