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Kumar Y.,IITM | Purohit P.,BSF Academy
Proceedings - 2010 International Conference on Computational Intelligence and Communication Networks, CICN 2010 | Year: 2010

Advanced Encryption Standard, a federal information processing standard is an approved cryptographic algorithm that can be used to protect electronic data. The AES can be programmed in software or built with pure hardware. However field programmable gate array offers a quicker and more customizable solution. This paper presents the AES algorithm with regard to FPGA and the very high speed integrated circuit hardware description language. Modelsim SE PLUS 5.7g soft ware is used for simulation and optimization of the synthesizable VHDl code. Synthesizing and implementation of the code carried out on Xilinx -project navigator, ISE 8.2i suite. All the transformations of both encryption and decryption are simulated using an iterative design approach in order to minimize consumption. This paper talks of AES 128 bit block and 128 bit cipher key and is implemented on Spartan 3 FPGA. © 2010 IEEE.

Tomar G.S.,M I R Labs. | Sharma F.M.,BSF Academy
Proceedings - 2010 International Conference on Computational Intelligence and Communication Networks, CICN 2010 | Year: 2010

This paper presents the design and analysis of Microstrip Band pass Filter at 8 GHz. An artificial neural network model to determine the Magnitude and Phase variations of scattering parameters (S-parameters) of these filters is also proposed for various frequencies. Performance of the proposed model is evaluated in terms of average and maximum estimated errors. Comparison of the EM simulated Results with neural models is also presented. © 2010 IEEE.

Parmar G.,Rajasthan Technical University Kota | Pandey M.K.,BSF Academy | Kumar V.,Indian Institute of Technology Roorkee
Communications in Computer and Information Science | Year: 2010

An algorithm for order reduction of linear multivariable systems has been presented using the combined advantages of the dominant pole retention method and the error minimization by particle swarm optimization technique. The denominator of the reduced order transfer function matrix is obtained by retaining the dominant poles of the original system while the numerator terms of the lower order transfer matrix are determined by minimizing the integral square error in between the transient responses of original and reduced order models using particle swarm optimization technique. The reduction procedure is simple and computer oriented.The proposed algorithm has been applied successfully to the transfer function matrix of a 10 th order two-input two-output linear time invariant model of a practical power system. The performance of the algorithm is tested by comparing the relevant computer simulation results. © 2010 Springer-Verlag Berlin Heidelberg.

Srivastava A.,Indian Institute of Information Technology and Management Gwalior | Tyagi N.,Indian Institute of Information Technology and Management Gwalior | Sharma U.S.,BSF Academy | Singh R.K.,ITM University
Materials Chemistry and Physics | Year: 2011

We have performed the first-principle study to analyze the structural and electronic properties of aluminum arsenide under the application of pressure. The computations have been carried out using the ground state total energy calculation approach of the system. The first-principle approach has been used to compute the stability of various phases of AlAs, like original zinc blende (B3), intermediate NiAs (B8), NaCl (B1) and CsCl (B2) type as a function of pressure. The study observes a B3-B8, B3-B1 and B3-B2 transitions at 6.99 GPa, 8.18 GPa and 73.43 GPa. The computed phase transition pressures, lattice parameters, bulk modulus, and energy gaps are in good agreement with their experimental as well as theoretical counterparts. Band structure and density of states analysis have also been performed and results have been discussed in detail. © 2010 Elsevier B.V. All rights reserved.

Pandey M.K.,BSF Academy | Parmar G.,Riga Technical University | Patsariya S.,BSF Academy
Communications in Computer and Information Science | Year: 2011

As the technology increases day by day, human dependency increases on technologies. In present scenario everyone wants to do their work, business etc with the help of computer or with internet. Hence this increases the possibility of large-scale unauthorized copying which may lead to undermine the music, film, book and software industries. These concerns over protecting copyright have triggered significant research to find ways to hide copyright messages and serial number into digital media. An important sub discipline of information hiding is Watermarking. Digital Watermarking is an authentication technique which permanently embeds a digital signal (watermark) in text, image, audio, video files (any Data) by slightly modifying the data but in such a way that there are no harmful effects on the data. In this paper, we present audio watermarking technique that utilized the manipulation in high frequency of an audio signal to hide secret message The experimented result developed through MATLAB show that the usefulness of this technique. © 2011 Springer-Verlag Berlin Heidelberg.

Sharma M.,BSF Academy
Advances in Intelligent Systems and Computing | Year: 2016

In recent year’s fractional kinetic equation are studied due to their usefulness and importance in mathematical physics, especially in astrophysical problems. In Astrophysics kinetic equations designate a system of differential equations, describing the rate of change of chemical composition of a star for each species in terms of the reaction rates for destruction and production of that species. Methods for modeling processes of destruction and production of stars have been developed for bio-chemical reactions and their unstable equilibrium states and for chemical reaction networks with unstable states, oscillations and hysteresis. The aim of present paper is to find the solution of generalized fractional order kinetic equation, using a new special function. The results obtained here is moderately universal in nature. Special cases, relating to the Mittag-Leffler function is also considered. © Springer International Publishing Switzerland 2016.

Sharma U.S.,BSF Academy | Sharma R.N.,BSF Academy | Shah R.,BSF Academy
Advanced Science Letters | Year: 2015

Zinc ferrite (ZnFe2O4) and Manganese ferrite (MnFe2O4) nanoparticles were synthesized by using Chemical co-precipitation method. The effect of annealing on the structure and magnetic properties has been investigated at different temperature. The structure and magnetic properties of these nanoparticles were characterized by using XRD, TEM and Vibrating sample magneto meter (VSM). The lattice constant of MnFe2O4 is significantly increases with further increasing annealing temperature. The average particle size were determined by using Transmission Electron Microscopy (TEM) which were in good agreement with results obtained by XRD. Magnetic properties were performed by using VSM technique which shows that after annealing the behavior of these nanoparticles change from super paramagnetic to ferromagnetic. © 2015 American Scientific Publishers. All rights reserved.

Agarwal S.K.,BSF Academy | Kumar P.,BSF Academy
Proceedings - 2015 International Conference on Computational Intelligence and Communication Networks, CICN 2015 | Year: 2015

Image denoising is the manipulation of the image data to produce a visually high quality image. There are different types of filters like mean filter, median filter, bilateral filter, wiener filter etc. To remove a single type of noise such as salt and pepper noise, speckle noise, Gaussian noise etc. But if the image is corrupted by mixed noise then these filters do not remove the noise exactly. Here a white flower image has been taken for denoising purpose. The white flower image is corrupted by mixed noise at zero mean and different variances to produce different noisy images at zero mean and respective variances. © 2015 IEEE.

Yadav R.,BSF Academy | Agrawal S.K.,BSF Academy
Proceedings - 2015 International Conference on Computational Intelligence and Communication Networks, CICN 2015 | Year: 2015

Cognitive radio is an evolving technology which is able to solve the problem of spectrum inefficiency. Every wireless system occupies some bandwidth but there is limited spectrum which is allotted to the licensed user. This allotted spectrum is sometimes underutilized. Cognitive radio senses the spectrum, find the available space in the spectrum and allot it to the unlicensed secondary user without any interference to the primary licensed users. These unlicensed secondary users are called the cognitive radio users. Spectrum sensing is the main key task of cognitive radio. There are different types of spectrum sensing techniques which are energy detection, matched filter detection and cyclostationary detection. In this paper we are designing a cognitive radio system which can analyze the energy of the spectrum. Using energy detection technique, we analyze the performance of our system on different fading channels like additive white Gaussian noise channel, Rayleigh fading channel and Nakagami fading channel. © 2015 IEEE.

PubMed | BSF Academy
Type: Journal Article | Journal: Journal of physics. Condensed matter : an Institute of Physics journal | Year: 2011

In recent years group III nitrides have gained recognition as being the most important materials for optoelectronics and electronics applications. The zinc-blende modification of GaN and AlN is receiving much attention over their wurtzite structure. Our present work deals with the detailed ab initio calculations of group III nitrides and phosphides in the zinc-blende phase. The plane wave pseudopotential approach is used to study the different properties of the material based on the concept of density functional theory (DFT). The converged plane wave cut-off energy (E(cut)) is used to set the number of plane waves, which varies from material to material. The calculated energy bandgaps are based on our theoretical equilibrium lattice constants. Our reported energy bandgap for InN (0.86eV) is in good agreement with the recently reported experimental result (>0.7eV and<1.0eV).

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