Government Women Engineering College

Ajmer, India

Government Women Engineering College

Ajmer, India
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Saxena G.,Government Women Engineering College | Kaushik M.,Shankara Institute of Technology
Physics of Atomic Nuclei | Year: 2017

A systematic study of the ground-state properties of the entire chains of even–even neutron magic nuclei represented by isotones of traditional neutron magic numbers N = 8, 20, 40, 50, 82, and 126 has been carried out using relativistic mean-field plus Bardeen–Cooper–Schrieffer approach. Our present investigation includes deformation, binding energy, two-proton separation energy, single-particle energy, rms radii along with proton and neutron density profiles, etc. Several of these results are compared with the results calculated using nonrelativistic approach (Skyrme–Hartree–Fock method) along with available experimental data and indeed they are found with excellent agreement. In addition, the possible locations of the proton and neutron drip-lines, the (Z, N) values for the new shell closures, disappearance of traditional shell closures as suggested by the detailed analyzes of results are also discussed in detail. © 2017, Pleiades Publishing, Ltd.


Kumari G.,Government Women Engineering College | Selwal C.,Government Women Engineering College
International Conference on Signal Processing, Communication, Power and Embedded System, SCOPES 2016 - Proceedings | Year: 2017

The contemporary spreading of cellular system has raised the complexity in processing algorithm and forced the current technologies to its curb. The demand of higher data-rate for long haul communication leads to the development of optical wireless communication. The proposed system is designed to integrate WDM with optical wireless communication to make efficient system for inter-satellite communication. The system composed of 8-channel WDM with line-of-sight optical link to achieve the data-rate of 80 Gbps for the coverage distance of 5000 km. The realization of the system is done on the basis of quality factor, BER and eye opening obtained from BER analyzer. The proposed system will be highly useful for present and next generation optical communication between satellites. © 2016 IEEE.


Jyotiyana D.,Government Women Engineering College | Saxena V.P.,Government Women Engineering College
2016 International Conference on Recent Advances and Innovations in Engineering, ICRAIE 2016 | Year: 2017

Elliptic Curve Cryptosystems are very much delicate to attacks or physical attacks. This paper aims to correctly implementing the fault injection attack against Elliptic Curve Digital Signature Algorithm. More specifically, the proposed algorithm concerns to fault attack which is implemented to sufficiently alter signature against vigilant periodic sequence algorithm that supports the efficient speed up and security perspectives with most prominent and well known scalar multiplication algorithm for ECDSA. The purpose is to properly injecting attack whether any probable countermeasure threatening the pseudo code is determined by the attack model according to the predefined methodologies. We show the results of our experiment with bits acquire from the targeted implementation to determine the reliability of our attack. © 2016 IEEE.


Saxena G.,Government Women Engineering College | Kaushik M.,Shankara Institute of Technology
Acta Physica Polonica B | Year: 2017

We have employed RMF+BCS (relativistic mean field plus BCS) approach to study behaviour of N = 16 shell closure with the help of ground state properties of even-even nuclei. Our present investigations include single-particle energies, deformations, separation energies as well as pairing energies etc. As per recent experiments showing neutron magicity at N = 16 for O isotopes, our results indicate a strong shell closure at N = 16 in 22C and 24O. A large gap is found between neutron 2s1/2 and 1d3/2 states for 22C and 24O. These results are also supported by a sharp increase in two neutron shell gap, zero pairing energy contribution and with an excellent agreement with available experimental data.


Saxena G.,Government Women Engineering College | Singh D.,University of Rajasthan
International Journal of Modern Physics E | Year: 2013

Encouraged by the success of relativistic mean-field plus BCS (RMF + BCS) approach for the description of the ground state properties of the chains of isotopes of proton magic nuclei with proton number Z = 8, 20, 28, 50 and 82 as well as those of proton sub-magic nuclei with Z = 40, we have further employed it, in an analogous manner, for a detailed calculations of the ground state properties of the neutron magic isotones with neutron number N = 8, 20, 28, 50, 82 and 126 as well as those of neutron sub-magic isotones with N = 40 using the TMA force parametrizations in order to explore low lying resonance and other exotic phenomenon near drip-lines. The results of these calculations for wave function, single particle pairing gaps etc. are presented here to demonstrate the general validity of our RMF + BCS approach. It is found that, in some of the proton-rich nuclei in the vicinity of the proton drip-line, the main contribution to the pairing correlations is provided by the low-lying resonant states, in addition to the contributions coming from the states close to the Fermi surface, which results extended proton drip-line for isotonic chain. © 2013 World Scientific Publishing Company.


Singh D.,University of Rajasthan | Saxena G.,Government Women Engineering College
International Journal of Modern Physics E | Year: 2012

Inspired by recent experimental studies of two-proton radioactivity in the light-medium mass region, we have employed relativistic mean-field plus state-dependent BCS approach (RMF+BCS) to study the ground state properties of selected even-Z nuclei in the region 20 ≤ Z ≤ 40. It is found that the effective potential barrier provided by the Coulomb interaction and that due to centrifugal force may cause a long delay in the decay of some of the nuclei even with small negative proton separation energy. This may cause the existence of proton-rich nuclei beyond the proton drip-line. Nuclei 38Ti, 42Cr, 45Fe, 48Ni, 55Zn, 60Ge, 63, 64Se, 68Kr, 72Sr and 76Zr are found to be the potential candidates for exhibiting two-proton radioactivity in the region 20 ≤ Z ≤ 40. The reliability of these predictions is further strengthened by the agreement of the calculated results for the ground state properties such as binding energy, one- and two-proton separation energy, proton and neutron radii, and deformation with the available experimental data for the entire chain of the isotopes of the nuclei in the region 20 ≤ Z ≤ 40. © 2012 World Scientific Publishing Company.


Dhaka R.,Government Women Engineering College
Proceedings - 2014 6th International Conference on Computational Intelligence and Communication Networks, CICN 2014 | Year: 2014

Design and analysis of ultrahigh birefringent photonic crystal fiber having low confinement loss and nearly zero dispersion characteristics has been presented. The suggested design has phosphate glass rectangular slab surrounded by rectangular array of four air holes in core region and circular air holes in the cladding region. Photonic crystal fiber structure is designed, simulated and analyzed by using opti FDTD simulation software. The proposed design shows ultrahigh birefringence (~0.023) and low confinement loss at 1.55μm. Such high value of birefringence eliminates fluctuation in polarization state. © 2014 IEEE.


Dhaka R.,Government Women Engineering College
Proceedings - 2014 6th International Conference on Computational Intelligence and Communication Networks, CICN 2014 | Year: 2014

In this work, a highly birefringent photonic crystal fiber with ultra low confinement loss using silica is proposed. The birefringence is achieved by introducing the asymmetry along the radial axis. The symmetric cladding structure results in very low confinement loss by limiting the light in the core region. The proposed design is analyzed and simulated using FDTD simulation software and the fiber shows high birefringence (0.0073) and ultra low confinement loss (0.003 dB/km) at 1.55μm wavelength, which makes the photonic crystal fiber endlessly single mode fiber and highly polarization maintaining. © 2014 IEEE.


Misra R.,Malaviya National Institute of Technology, Jaipur | Bansal V.,Government Women Engineering College | Agrawal G.D.,Malaviya National Institute of Technology, Jaipur | Mathur J.,Malaviya National Institute of Technology, Jaipur | Aseri T.K.,Government Engineering College
Applied Energy | Year: 2013

Thermal performance of Earth Air Tunnel Heat Exchanger (EATHE) under transient operating conditions has been evaluated for predominantly hot and dry climate of Ajmer (India) using experimental and Computational Fluid Dynamics modeling. Effects of time duration of continuous operation, thermal conductivity of soil pipe diameter and flow velocity on thermal performance of EATHE under transient conditions have been analyzed. Results show that the transient thermal performance of EATHE is significantly dependent on thermal conductivity of the soil and duration of its continuous operation. The analyzed cases have shown the range of derating to be as minimal as 0% to as high as 64%, which if ignored while designing may lead to poor performance of EATHE. Study reveals that the effect of pipe diameter due to prolonged use of EATHE system on its thermal performance is least in case of soil with higher value of thermal conductivity. Results show that the increase in flow velocity leads to deterioration in thermal performance of EATHE system. Under steady state condition, drop of 18.8°C in air temperature is obtained, whereas, under transient conditions cooling of air reduces from 18.7°C to 16.6°C for soil thermal conductivity of 0.52Wm-1K-1, after 24h of continuous operation. © 2012 Elsevier Ltd.


Sharma S.S.,Government Women Engineering College
AIP Conference Proceedings | Year: 2013

In this paper, we report the photovoltaic response of the solution processed DBPYM: PCBM bulk heterojunction (BHJ) solar cell. The BHJ showed power conversion efficiency (PCE) up to 2.11 %. The PCE has been further improved up to 2.93 % after thermal annealing of the DBPYM: PCBM layer. The increase in the PCE with the thermally annealed blend is mainly attributed to the improvement in incident photon to current efficiency (IPCE) and short circuit photocurrent (Jsc). Thermal annealing leads to an increase in both the crystallinity of the blend and hole mobility, which improves the PCE. © 2013 AIP Publishing LLC.

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