Kumar A.,Lingayas University |
Kapoor P.,Lingayas University
2016 IEEE International Conference on Recent Trends in Electronics, Information and Communication Technology, RTEICT 2016 - Proceedings | Year: 2016
In this paper, the dual-band slot antenna operating at 32 and 42 GHz for 5G mobile communication is presented. The presented design consists of an elliptical slot with sectored radiating patch to increase the antenna bandwidth and also to minimize the interference between 5G and other communication devices. The simulated result shows that the presented antenna has dual-band at 30.5-32 GHz and 40.5-42 GHz, which has a bandwidth of 1.5 GHz each for reflection coefficient less than -10dB. The simulated radiation patterns showed that the presented antenna is highly directional with VSWR less than 2 and achieved frequencies lie within the proposed 5G band. This antenna has been designed and simulated on HFSS using Neltec substrate with dielectric constant of 3.2. © 2016 IEEE.
Chahar R.K.,Lingayas University |
Agarwal A.,Lingayas University
AIP Conference Proceedings | Year: 2016
The solution of Economic Dispatch problem has been based on deterministic approach, where the input parameters are known with complete certainty. However, a lot of inaccuracies and uncertainties are present in the solution. Thus, involving risk that represents these uncertainties is necessary for finding an optimal solution. This paper provides a design of a new technique for the solution of Economic Dispatch problem considering risk. Recently, emphasis is placed on risk based solutions rather than probabilistic solution . The design proposed in this paper gives an insight into generating risk based solution of Economic Dispatch problem using concept of variation, Fuzzy sets and Artificial Neural Network (ANN). Since there are uncertainties involved in the solution, a coefficient of variation is used for each of the generator. Fuzzy sets are used for finding membership values. These membership values are given as inputs to ANN. Using these membership values as inputs, ANN computes a penalty term representing risk. The Lagrange multiplier method is employed for the solution of Economic Dispatch problem which uses the penalty term. This paper provides description of the various strategies used in the solution considering risk. © 2016 AIP Publishing LLC.
Verma G.,Lingayas University |
Kumar S.,Lingayas University |
Bundel B.R.,Lingayas University
International Journal of Mechanical Engineering and Technology | Year: 2016
Friction welding is defined as solid state joining process used to merge non-similar or similar metals. It is a widely used welding process in industries like aeronautical industries, automobile industries, submarine engineering industries and heavy duty industries. In this research work friction welded joints of non-similar and similar metals i.e. Mild steel-mild steel, Stainless steelstainless steel, Mild steel-Stainless steel, were compared and evaluated on the basis of their durability of welded joints. © 2016 IAEME Publication.
Saluja N.,Lingayas University
Elektronika ir Elektrotechnika | Year: 2012
In this paper modified feed for Sierpensiki gasket Fractal shaped is presented. Sierpensiki gasket structure is most widely used method in microstrip patch antenna design for multiband operation. But Sierpensiki gasket antenna suffers from the problem of reach of current density over complete fractal patch. In this paper a modified feeding structure is proposed for triangular shaped Sierpensiki gasket fractal patch antenna to have uniform current density throughout the fractal patch. The improvement is studied in terms of return loss and efficiency of antenna. Proposed feeding technique improves power flow throughout antenna so that it reaches small fractal as well as larger fractal structures. The simulated result shows agreement with the theoretical results. © Kauno technologijos universitetas, 2012.
Sharma S.K.,Lingayas University |
Sharma B.K.,Lingayas University
Physica B: Condensed Matter | Year: 2010
It is emphasized in the present study that the earlier models for the isothermal volume dependence of thermal expansivity a, developed by Tallon, Chopelas and Boehler, Anderson and Isaak, and Liu and Chen do not satisfy the thermodynamic constraint, i.e., α→Owhen P→∞ or V→0. The volume dependence of isothermal Anderson-Gruneisen parameter δT has been generalized in the present study. We have formulated a relation to compute the values of volume dependence of thermal expansivity. We have calculated thermal expansivity for Thomas-Fermi model, i.e., δT∞ = 2/3 for K′∞= 5/3 and Stacey and Davis model δT∞ = 2 for K′∞ = 3 up to a wide range of pressure 359.5 GPa for hcp iron. It is found that the present formulation satisfies the thermodynamic constraint, i.e.,α→0 when P→ ∞ or V→0. © 2010 Elsevier B.V. All rights reserved.
Sharma S.K.,Lingayas University |
Sharma B.K.,Lingayas University
Solid State Communications | Year: 2010
We present a simple and straightforward relationship for evaluating the volume dependence of melting temperature based on the Lindemann's melting equation (F.A. Lindemann, Z. Phys. 11 (1910) 609) and the Al'tshular et al. model for the volume dependence of the Gruneisen parameter (L.V. Al'tshuler, S.E. Brusnikin, E.A. Kuz' menkov, J. Appl. Mech. Tech. Phys. 28 (1987) 129). The formula for the volume dependence of melting temperature obtained in the present study has been used to determine the results for aluminium up to a pressure range of 77 GPa. The results obtained for the melting temperature present a good agreement with the available experimental data. © 2010 Elsevier Ltd. All rights reserved.
Kohli M.,Lingayas University |
Prasad T.V.,Lingayas University
WCE 2010 - World Congress on Engineering 2010 | Year: 2010
There are millions of children suffering from dyslexia across the globe. Due to its implicit characteristics, the identification or the diagnosis of students with this learning disability has long been a difficult issue. In fact there is a little consensus about what is the best procedure to identify a child suffering from dyslexia. In some developed countries there are set procedures and adequate awareness for identification of this disorder. This paper proposes a systematic approach for identification of dyslexia and to classify or analyze potential cases more accurately and easily by use of ANN. The preliminary results obtained using test data were satisfactory and can be used as an effective tool to identify dyslexic child and obtaining adequate information before rushing to a specialist. Many efforts are required to make the model more accurate.
Kapoor P.,Lingayas University |
Prasad S.V.A.V.,Lingayas University
2010 The 2nd International Conference on Computer and Automation Engineering, ICCAE 2010 | Year: 2010
Early diagnosis of Breast Cancer is the key to improve survival rate. Infrared thermal imaging or thermography is a promising screening tool as it is able to warn women of breast cancer ten years in advance. However, interpretation of a thermogram can be inconsistent. In order to improve the accuracy of preliminary breast cancer screening using thermogram, image segmentation is proposed as an automatic approach for analysis of infrared thermal images. Edge detection and Hough transform are outlined for asymmetry analysis of heat patterns in contralateral breasts. ©2010 IEEE.
Sharma M.K.,Thapar University |
Kanwar S.,Lingayas University |
Sawhney G.,Thapar University |
Gupta R.K.,Panjab University
Physical Review C - Nuclear Physics | Year: 2012
The dynamical cluster-decay model (DCM) is used to study the odd-mass nuclear systems 213Fr * (with N=126) and 217Fr * (with N=130) formed in 19F + 194 ,198Pt reactions. The measured anomaly in fission anisotropy for 213Fr * in this reaction is said to be due to either the possible role of the magic N=126 shell of the compound nucleus (CN) or the presence of a noncompound nucleus component, such as quasifission, in the fission cross section. Our calculations are made within the DCM for the fragments having quadrupole (β 2) deformations with orientations of compact, hot configurations, compared with spherical as well as β 2-β 4 deformed considerations. For quadrupole deformed fragments (with "optimal" orientations), the calculated fission cross-sections (as well as the evaporation residue cross-sections) match the data nearly exactly, without invoking a significant contribution from quasifission. The calculated fission mass distribution for the two systems is quite similar for either of the spherical, β 2- alone deformed, and β 2-β 4 deformed choices of fragments. A small hump or shoulder is seen in fragment preformation yields for the deformed case (β 2 or β 2-β 4) in both the systems due to a deformed closed shell around Z 2=36 and a spherical magic shell around Z 1=50, which for 213Fr * (N=126) decay is somewhat more pronounced as compared to 217Fr * (N=130). Note that the magic shell of the CN proton/neutron number plays no role in DCM. © 2012 American Physical Society.
Sharma S.K.,Lingayas University
Journal of Alloys and Compounds | Year: 2010
In the present paper, we present a method to predict the temperature dependence of thermal energy from room temperature to their melting temperatures at atmospheric pressure i.e., P = 1 bar or 105 Pa. We find that the calculated results of thermal energy are in good agreement with the experimental data. We employ the present relationship to NaCl and KCl to validate the present model. Present study also reveals that the temperature dependence of thermal energy shows linearity with isothermal bulk modulus. A close agreement between results and experimental data discloses the validity of present work. © 2010 Elsevier B.V. All rights reserved.