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Bhati R.,Acropolis Institute of Technology And Research
2010 IEEE International Conference on Communication Control and Computing Technologies, ICCCCT 2010 | Year: 2010

In this paper we have proposed a new way to achieve the optimum learning rate that can reduce the learning time of the multi layer feed forward neural network. The effect of optimum numbers of inner iterations and numbers of hidden nodes on learning time and recognition rate has been shown. The Principal Component Analysis and Multilayer Feed Forward Neural Network are applied in face recognition system for feature extraction and recognition respectively. The paper shows that the recognition rate and training time are dependent on numbers on hidden nodes. In this approach we have used variable learning rate and demonstrated its superiority over constant learning rate. We have used ORL database for all the experiments. ©2010 IEEE. Source

Acharya A.D.,Vikram University | Sarwan B.,Vikram University | Panda R.,Acropolis Institute of Technology And Research | Shrivastava S.B.,Vikram University | Ganesan V.,UGC-DAE Consortium for Scientific Research
Superlattices and Microstructures | Year: 2014

In this work, we explore the influence of Ag dopant concentration (i.e. 0-2 wt.%) on the opto-electric properties of Ag doped ZnO thin solid films synthesized by chemical spray pyrolysis technique. Several analytical tools such as XRD, AFM, SEM and dc-two probe technique were used. Structural studies reveal that with increasing the doping level, more dopant atoms occupy the zinc lattice sites but after a certain level, they form neutral defects and become ineffective as dopant impurities. 1 wt.% of Ag doping was the optimum for enhancing electrical conduction and beyond that the distortion caused in the lattice inhibits further conduction. Distinct changes including a red shift and narrowing of band gap with increasing Ag content was observed. The low temperature conduction has been explained by variable range hoping (VRH) mechanism. The possible distribution of Ag in the Ag-ZnO thin films has been tentatively discussed. © 2014 Elsevier Ltd. All rights reserved. Source

Jangde P.,Sri Satya Sai Institute of Science and Technology | Mishra D.K.,Acropolis Institute of Technology And Research
Proceedings - 2011 2nd International Conference on Intelligent Systems, Modelling and Simulation, ISMS 2011 | Year: 2011

Medical facilities are vital ingredients which can make or break lives. In such critical matters, proper management of Private Health Information (PHI) of each individual is very necessary. In many foreign countries, Information Technology has made a revolutionary impact in the medical sector too, providing with absolute paperless hospitals. Several emergency facilities are available, and doctors too use a tablet PC or a palmtop for complete patient's record retrieval and for diagnosis and treatment. No more files needs to be managed for individual patients. Thus, the hospital server is most vulnerable to all the threats pertaining to information thefts, frauds, unauthorized modification or any other crime. In such a scenario, the server and its information safety is a crucial concern for all the hospital management, as any invalid access can cost a life or even more. © 2011 IEEE. Source

Pathak R.,Acropolis Institute of Technology And Research | Joshi S.,Shri Vaishnav Institute of Technology and Science
World Journal of Modelling and Simulation | Year: 2011

Modern Computational methods have brought powerful techniques to calculate reliability by multi scale modeling supported by experimental and classical theoretical methods. These approaches play an important role in Micro Electro Mechanical Systems (MEMS) technology where the analysis is based on abstraction level theories and no comprehensive explanation of micro and nano scale phenomenon are proposed. In this work we have implemented High Performance Computing (HPC) with multi scale optimization for reliability calculations. In this work we have also developed a formulation where we can select the various physical properties at different level and then calculated reliability for better accuracy and to calculate the desired feature of reliability modeling. In this work, Modeling and Computation is performed using MATLAB distributed computing toolbox, Sugar MEMS simulation library, Microsoft compute cluster server (MCCS) and other functionaries of the same. Device level applications for MEMS have been shown with their relevant models. Source

Acharya A.D.,Vikram University | Moghe S.,Vikram University | Panda R.,Acropolis Institute of Technology And Research | Shrivastava S.B.,Vikram University | And 4 more authors.
Thin Solid Films | Year: 2012

Cd doped ZnO (Cd:ZnO) thin films on the glass substrate prepared by chemical spray pyrolysis technique have been characterized for their optical and electrical properties. The X-ray diffraction and atomic force microscopy results indicate that the crystalline quality degrade due to higher Cd doping in ZnO. The activation energy was found to be decreased when Cd concentration increased. The absorption edge of Cd:ZnO film was found to be red shifted. The direct modulation of band gap caused by Zn/Cd substitution is responsible for the red shift effect in absorption edge of ZnO. The low temperature conduction has been explained by variable range hoping mechanism, which fits very well in the temperature range from 108 K to 301 K. The interaction between Cd and defects in ZnCdO alloy to understand the important roles of Cd in the formation of native defects has also been tentatively discussed. © 2012 Elsevier B.V. Source

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