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Warkad S.B.,RTMNU
2016 International Conference on Systems in Medicine and Biology, ICSMB 2016 | Year: 2017

In this paper case based reasoning (CBR) approach has been developed for voltage security assessment. In the CBR approach, probabilistic fuzzy decision tree (PFDT) is being trained in real time for getting solution of new cases. In case topology of the power system changes the PFDT models may not respond correctly and hence need retraining. CBR updates its case-base in real-Time by learning new cases and use them in future. Also case-base of CBR can easily be modified for any change in topology of the power system. The proposed approach, classifies the power system operating states instantaneously into secure and insecure states with the desired accuracy. © 2016 IEEE.

Sahare P.,RTMNU | Moon A.,RTMNU
International Journal of Pharmaceutical Sciences Review and Research | Year: 2016

The multidrug resistant E. coli strains were isolated from Urinary Tract Infected (UTI) patients and ESBL (Extended Spectrum β-Lactamase) expressing isolates were identified. The β-lactamase (βL) activity was investigated and compared for their extracellular & intracellular activity. These isolates were also been checked for the presence of different βL by PCR and found OXA, TEM and AmpC. The sequencing and mutational analysis were done for these βL. We have also projected the use of phytochemicals identified as potential antibacterials in our lab to see whether they can inhibit βL by nitrocefin assay. Automated molecular docking with all molecules was performed by using the advanced docking program AutoDock whereas the inhibitor-enzyme interactions were estimated by the Lamarckian genetic algorithm. Both, the biological and docking data suggests the potential β-lactamase inhibitory activity of phytochemicals, specifically chlorogenic acid as it is able to bind the active site pocket of OXA, TEM & AmpC and inhibit the total βL activity as performed by nitrocefin assay. © protected.

More S.,RTMNU | Dhokne R.,GHRIET | Moharil S.,RTMNU
Materials Research Express | Year: 2017

A systematic study of AC electrical properties and dielectric relaxation of polyvinyl alcohol (PVA)-zinc oxide (ZnO) composite films has been presented in the frequency range 1 Hz-100 kHz when temperature changes from 288 K-353 K. The films were characterized for structural analysis by x-ray diffraction (XRD), field emission scanning electron microscopy (FESEM) attached with EDAX and Fourier transform infrared spectroscopy (FTIR). The structural investigation confirms the presence of ZnO in PVA polymer. The incorporation of ZnO particles into PVA matrix enhances the AC conductivity and temperature dependence of them obeys the Jonscher's universal power law. The frequency exponent which depends on temperature suggests the CBH (correlated barrier hopping) mechanism; is dominent mechanism in the composite film. The real and imaginary part of dielectric constant shows dispersion at low frequencies and decreased at high frequencies which may be ascribed to interfacial or electrode polarization. The temperature dependence of follows the Debye model. At low frequency, the values of a real part of the electric modulus (M') remains almost zero at all temperature except at 288 K and 303 K temperature due to viscous nature of polymer at low temperatures. The dielectric relaxation time was extracted from a plot of frequency dependence of M' at different temperature and it is found to decrease with temperature resulting in the enhancement of AC conductivity. © 2017 IOP Publishing Ltd.

Khedikar R.,RTMNU | Kapur A.,MGI | Chawan M.D.,RCOEM
Lecture Notes in Electrical Engineering | Year: 2014

Recently wireless sensor network (WSN) is very popular for monitoring the remote or hostile environments. One major challenge in WSN is to build energy efficient network with total coverage & connectivity. The WSN consist of a large number of tiny nodes having sensing, computation & communication capability. The deployment of sensor nodes is the first step in establishing a sensor network. The large number of sensor nodes are deployed randomly & must be in the form of cluster, as a location of each particular node cannot be fully guaranteed a priori so that nodes must completely cover the target area. To build energy efficient network with the stochastically placed nodes, it is necessary to activate only vital number of nodes at any particular moment. In this paper we introduce a heuristic that will find out the mutually exclusive set called disjoint complete set of sensor nodes, where the member of each set together will completely cover the target area and work by turns. As the more number of sensor covers can be found the sensorsnetwork lifetime can be prolonged. © 2014 Springer.

Khedikar R.,RTMNU | Kapur A.,Q A CEO | Chawhan M.D.,RCOEM
Proceedings - International Conference on Electronic Systems, Signal Processing, and Computing Technologies, ICESC 2014 | Year: 2014

Recently the application of wireless sensor network (WSN) is very popular for monitoring the remote or hostile environments. Network lifetime is the critical characteristic in wireless sensor network. In large scale reconnaissance system the lifetime of wireless sensor network (WSNs) system is the time period that all targets can be covered. Target coverage problem is one of the issues to increase the lifetime of wireless sensor network. This problem can be solved by scheduling the sensors activity by keeping minimum number of nodes active at particular time. The sensors from the active sets are monitoring all targets and liable to transmit the data to the base station and the remaining nodes are in sleep mode. In this paper we propose Genetic Algorithm in which we keep minimum number of nodes active by forming set cover by divide all the deployed sensors in to mutually elite subsets of sensors or set cover such that each set of can cover all targets. After finding the set cover they may work by turns means at one time only one set will active and other will sleep mode by designing heuristics that efficiently compute the set covers hence lifetime of WSNs can be prolong by finding more sensor set. The simulation results presented to verify the approach the maximum number of sensor cover can be found by conversion to the Cover Set problem, which has been proved to be NP-complete. © 2014 IEEE.

Kotkar S.N.,Government Polytechnic | Juneja H.D.,RTMNU
Journal of Chemistry | Year: 2013

A series of new polymeric complexes of Mn(II), Co(II), Ni(II), Cu(II), and Zn(II) were prepared with a Schiff base ligand derived from condensation of 2,4-dihydroxy acetophenone and p-phenylene diamine and characterized by elemental analysis and IR and NMR spectral data. The antimicrobial activity of the Schiff base and its polymeric complexes have been studied. © 2013 Shubhangi N. Kotkar and Harjeet D. Juneja.

Pawade V.B.,VNIET | Dhoble S.J.,RTMNU
Journal of Luminescence | Year: 2014

In this article we have reported Dy3+ luminescence in BaAl 2Si2O8 phosphors by combustion synthesis at 600 C. Phosphor shows emission bands at 484 nm and 577 nm, keeping excitation constant at 367 nm ranging from 300 to 400 nm. Till date there is no report on BaAl2Si2O8:Dy3+ phosphors. Thermoluminescent characterization was carried out to study trap depth in BaAl2Si2O8:Dy3+ phosphor. Phosphor was further characterized by XRD for the confirmation of phase purity. Therefore observed broad blue and yellow bands in Dy3+ ions show that phosphor may be applicable for white-LEDs. © 2013 Elsevier B.V.

Pawade V.B.,Laxminarayan Institute of Technology | Dhoble N.S.,Sevadal Mahila Mahavidyalay | Dhoble S.J.,RTMNU
Materials Research Express | Year: 2015

RE3+ (RE3+Q=QEu3+,Dy3+ and Ce3+) doped Ca3Al2Si3O12 phosphors are prepared at 600 °Cby a combustion method. The phase and crystallanity of the synthesized materials is investigated by X-ray diffraction. Luminescence characteristics were analyzed by using photoluminescence spectra. Here Ca3Al2Si3O12: Eu3+ phosphor shows strong emission bands at 581, 592, 615 under 396 nmexcitation wavelengths. Dy3+ emission band is observed at, 437, 484, 577 under 348 nmexcitation wavelength. Whereas Ce3+ shows isolated blue emission bands at 440 nmkeeping excitation wavelength constant at 355 nm. Also spin-orbit splitting difference in 2F7/2 and 2F5/2 ground state level of Ce3+ ions is studied using curve fitting analysis. Thus, the present phosphor may applicable for near ultraviolet excited white light emitting diode. © 2015 IOP Publishing Ltd.

Khedikar R.,RTMNU | Kapur A.,MGI
Proceedings of the 2014 International Conference on Issues and Challenges in Intelligent Computing Techniques, ICICT 2014 | Year: 2014

In commercial development and research the growth of Wireless sensor networks are very fast. Target coverage is one of the most active areas of research in wireless sensor networks. Coverage in wireless sensor networks is usually defined as a measure of how well and how long the sensors are able to observe the physical space. Several nodes deployments and design based has been developed depending upon the requirement of the applications and requirements. The deployment of node is generally application based either deterministic or randomized but in both cases target coverage is impotent issue in WSNs. The different placement techniques available in wireless sensor networks. In this paper we address the problem like minimum number of sensors required to construct cover the total area with a given required lifetime of the sensors. In this paper we discuss the problem minimum number of nodes needed to construct energy efficient network and what is the corresponding placement scheme used in field. © 2014 IEEE.

Rathkanthiwar S.,RTMNU | Dethe C.G.,RTMNU | Kulat K.D.,RTMNU
IET Conference Publications | Year: 2011

This paper presents a neural network based, high power amplifier (HPA) characteristics independent adaptive method for compensation of nonlinear distortions for orthogonal frequency division multiplexing signals. Major elements that contribute to multipath fading effects are also considered and to account for major degradation categories, Rayleigh and Rician channel models are considered in an OFDM system. System performance is tested for OFDM system with and without neural block and it is proved through spectral regrowth as well as bit error rate (BER) plots that the proposed model brings in overall improvement in OFDM system.

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