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Kempe Gowda B.K.,Maharanis Science College for Women | Prashanth P.A.,Sai Vidya Institute of Technology
International Journal of ChemTech Research | Year: 2011

Kinetics of oxidation of a typical amino acids namely Glycine and Leucine by Tripropylammonium fluorochromate (TriPAFC) has been studied in sulphuric acid medium at 25 °C. The rate shows second order dependence on [TriPAFC] and first order dependence on three [amino acids], which tends to second order dependence on [H +] = 0.1mol dm -3. The reaction is almost independent of other effects, like chloride, sulphate ions. Effect of ionic strength and dielectric constant of medium has also been studied. The reaction has been studied at different temperatures and a mechanism conforming to the kinetic observations is suggested.

Arvind D.,BMS College of Engineering | Arvind D.,Sai Vidya Institute of Technology | Hegde G.,BMS College of Engineering
RSC Advances | Year: 2015

Supercapacitors are perfect energy storage devices; they can be charged almost instantly and release energy over a long time. They can be charged multiple times with minimal degradation in performance. Supercapacitor performance is determined by the composition of the electrode and advanced configurations. In this review, we compare the performance of different electrode materials which are obtained from biowaste based precursors. Our main interest in this review is to study the supercapacitor properties using carbon based spherical natured particles well known as carbon nanospheres. Carbon based electrodes, particularly bio-waste activated carbon nanospheres, have gained interest due to their excellent energy storage ability. In this paper, Activated Carbon Nanospheres derived from several bio-waste materials are reviewed on the basis of their cyclic voltammograms, specific capacitances, surface areas, electrolytes used and fabrication process. © The Royal Society of Chemistry.

Abhijith H.V.,Sai Vidya Institute of Technology
Souvenir of the 2015 IEEE International Advance Computing Conference, IACC 2015 | Year: 2015

Wireless sensor network (WSN) is considered as a most trusted technology because of its wide range of applications in various fields like healthcare, industry, military, agriculture etc. WSN consists of seveal sensor nodes with each having the capacity to sense the data, process the sensed data and communicate the processed data. Usually sensor nodes are densely, randomly deployed at the region of interest. This kind of deployment leads to the generation of enormous ammount of redundant sensor data. Routing of such redundant data consumes more energy and saturates the network resources. Hence Data fussion technique is used to reduce the redundant transmissions in the network by fussing the redundant data packets so that network lifetime is enhanced. There are different data fussion techniques which perform data fussion in a single level or in two levels. In this paper we are proposing a multilevel hierarchical data aggregation technique which handles the redundant transmissions in an efficient manner. © 2015 IEEE.

Kiran N.C.,Sai Vidya Institute of Technology | Kumar G.N.,University Visvesvaraya College of Engineering
International Symposium on Advanced Networks and Telecommunication Systems, ANTS | Year: 2011

Mobile commerce is one of the upcoming research area with focus on mobile payment systems. Unfortunately, the current payment systems is directly dependent on fixed infrastructure of network (cellular network), which fails to facilitate optimal level of security for the payment system. The proposed system highlights a novel approach for building a secure, scalable, and flexible e-payment systems in the distributed scenario of wireless adhoc network in offline mode of communication for enhanced security on transaction and payment process. The proposed system uses Simple Public Key Infrastructure for providing the security in payment processes. The performance analysis of the proposed model shows that the system is highly robust and secure ensuring anonymity, privacy, non-repudiation offline payment system over wireless adhoc network © 2011 IEEE.

Nanjundappa C.E.,National Institute of Technology Jalandhar | Shivakumara I.S.,Bangalore University | Arunkumar R.,Sai Vidya Institute of Technology
Microgravity Science and Technology | Year: 2013

The effect of temperature dependent viscosity on the onset of Marangoni-Bénard ferroconvection under microgravity conditions in a horizontal ferrofluid layer in the presence of a uniform vertical magnetic field has been studied. The viscosity is considered to be varying exponentially with temperature. The lower rigid and the upper horizontal free boundaries are considered to be perfectly insulated to temperature perturbations. The resulting eigenvalue problem is solved numerically using the Galerkin technique as well as analytically by regular perturbation technique with wave number a as a perturbation parameter. It is observed that the analytical results agree well with those obtained numerically. The characteristics of stability of the system are strongly dependent on the viscosity parameter B. It is found that increase in the viscosity parameter B has a stabilizing effect on the onset of Marangoni-Bénard ferroconvection. Moreover, the nonlinearity of fluid magnetization M 3 is observed to have no consequence on the onset of convection in the case of fixed heat flux boundary conditions. © 2012 Springer Science+Business Media Dordrecht.

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