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Moghe S.,Mahakal Institute of Technology | Moghe S.,Vikram University | Acharya A.D.,Vikram University | Panda R.,Acropolis Institute of Technology And Research | And 4 more authors.
Renewable Energy | Year: 2012

Copper doped NiO thin films have been prepared using chemical spray pyrolysis technique. Investigation of these films has been done using X-ray diffraction, Atomic force microscopy, two-probe resistivity measurements and UV-visible spectroscopy. Interesting results have been obtained from the study of optical spectra. A peak corresponding to 439 nm has been observed in the absorption spectra for 1%, 5% and 10% copper doped samples. The area of the peak increases with the increase in copper concentration. This result is consistent with the AFM data. The resistivity results show that the activation energy decreases with the increase in the copper concentration. The low temperature conduction has been explained by variable range-hopping mechanism, which fits very well for the whole temperature range and again is consistent with the absorbance data. Value addition to this study is the observation of higher absorption in the visible region, thereby a tendency towards tunability for applications. © 2012 Elsevier Ltd.

Sharma M.G.,Mahakal Institute of Technology
IFIP International Conference on Wireless and Optical Communications Networks, WOCN | Year: 2012

The effect of channel bit error rate on the distortion of the image transmitted on an AWGN channel has been considered and a statistical relationship between the two has been presented and verified by simulation. © 2012 IEEE.

Pandey S.,Mahakal Institute of Technology | Hindoliya D.A.,Ujjain Engineering College | Mod R.,Mahakal Institute of Technology
International Journal of Low-Carbon Technologies | Year: 2013

Green roof is a passive cooling technique that stops incoming solar radiation from reaching the building structure below. Many studies have been conducted over the past 10 years to consider the potential building energy benefits of green roofs and have shown that they can offer benefits in energy reduction for winter heating as well as summer cooling. Green roofs have many benefits over conventional roofs: they reduce storm water run-off, the heat island effect in cities and energy requirements for cooling; all of this while sequestering some CO. 2 from the atmosphere. But because of their expense, the building industry has yet to fully embrace their large-scale implementation. Over the summer', two test structures, one with a green roof and the other with an RCC roof, were built and tested at the Ujjain Engineering College, Ujjain, RGPV University, to determine their cooling potential. Results indicate that the test cell with the green roof consistently performs better than those with the conventional cement RCC roof. © The Author 2012. Published by Oxford University Press. All rights reserved.

Sharma V.,Mahakal Institute of Technology | Sharma K.V.,Mahakal Institute of Technology
E-Journal of Chemistry | Year: 2010

A series of 3-aryl-5-styrylisoxazoline/ 3,5-diarylisoxazoline derivatives were synthesized by the reaction of appropriately substituted chalcones and hydroxylamine hydrochloride in presence of alkali in ethanol. The synthesized heterocycles have been characterized on the basis of their chemical properties and spectroscopic data. These compounds were tested for biological activity against a variety of test organisms.

Tripathi A.,Mahakal Institute of Technology | Singh U.K.,Vikram University
ICCTD 2010 - 2010 2nd International Conference on Computer Technology and Development, Proceedings | Year: 2010

One of the major problem in information system security assessment is lack of standard vulnerability categorization scheme or taxonomy. Various analyses indicated that majority of software vulnerabilities tend to focus in few areas and associated with small set of services. An effective vulnerability taxonomy that can relate vulnerability causes, effects and countermeasures can aid in security assessment. Researchers and security analysts also widely recognized the need of standard vulnerability taxonomy for security assessment and measurement of software tools, services and systems. Keeping in view high rising need of such standard taxonomy of vulnerability, prominent efforts in this direction are critically reviewed. Status of efforts towards categorization of CVE dictionary is also examined. This paper aims to help researchers in developing standard vulnerability taxonomy by highlighting common pitfalls associated with previous efforts and provide guidelines for future work. © 2010 IEEE.

Pandey S.,Mahakal Institute of Technology | Hindoliya D.A.,Ujjain Engineering College | Mod R.,Mahakal Institute of Technology
Applied Soft Computing Journal | Year: 2012

Three passive cooling methods (e.g. roof pond, reflective roof cooling and using insulation over the roof) have been experimentally evaluated using an experimental test structure. The objective of this work is to train an artificial neural network (ANN) to learn and predict the indoor temperature of room with the different experimental data. Different training algorithms (traingd, traingdm, traingdx, trainrp, traincgp, traincgf, traincgb, trainscg, trainbfg, trainoss, trainlm, and trainbr) were used to create an ANN model. This study is helpful in finding the thermal comfort of building by applying different passive cooling techniques. The data presented as input were outside temperature, relative humidity, solar intensity and wind speed. The network output was indoor temperature. The advantages of this approach are (i) the speed of calculation, (ii) the simplicity, (iii) adaptive learning from examples and thus gradually improve its performance, (iv) self-organization and (vi) real time operation. Results proved highly satisfactory and provided enough confidence for the process to be extended to a larger solution space for which there is uneconomical and time consuming way of calculating the solution. © 2011 Elsevier B.V. All rights reserved.

Sharma A.,Mahakal Institute of Technology | Pawar K.,Mahakal Institute of Technology
2016 Symposium on Colossal Data Analysis and Networking, CDAN 2016 | Year: 2016

Mobile ad hoc network is a type of ad hoc network that can change locations and configure itself on the fly. MANETs uses self configurable connections to connect various nodes. There are a number of issues and challenges in a mobile ad hoc network. Congestion Control is an advanced area in research and new development in mobile ad hoc network. Congestion occurs when resources are limited and demand is more. Different types of techniques have been proposed to overcome the congestion in the mobile ad hoc network. Congestion control mechanism tries to control congestion either before congestion occur or after congestion takes actually place in the network. In this paper, we propose a new approach named as CRAODV for congestion control in MANETs and compare the same with the EDMR algorithm. Our simulation result shows better performance in terms of packet drop ratio. © 2016 IEEE.

Tripathi A.,Mahakal Institute of Technology | Singh U.K.,Vikram University
Proceedings - 6th International Conference on Computer Sciences and Convergence Information Technology, ICCIT 2011 | Year: 2011

In view of increasing population of vulnerabilities, quantitative evaluation of vulnerabilities is necessary for efficient mitigation. Evaluation on classified vulnerability datasets can further improve the mitigation process. Objective of this paper is to develop security metrics to prioritize vulnerability categories based on CVSS scores to step ahead in this regard. In this context, security metrics are developed to reevaluate and unify vulnerability severity scores depending on availability of patches and age of vulnerability. Proposed metrics are applied on 5177 vulnerabilities extracted from NVD published in recent one year and vulnerability categories are prioritized and ranked based on cumulative severity scores. © 2011 AICIT.

Tripathi A.,Mahakal Institute of Technology | Singh U.K.,Vikram University
Proceedings - 6th International Conference on Computer Sciences and Convergence Information Technology, ICCIT 2011 | Year: 2011

Quantitative risk assessment of system security is emerging as an important research area in view of increasing population of vulnerabilities. Assessment on classified vulnerability datasets leads to effective vulnerability mitigation and risk analysis. An effective vulnerability classification scheme under rich taxonomic features that relates cause, impact and risk level can serve the purpose. However there is no common classification scheme in this regard. The focus of our research is taxonomic analysis of classification schemes in pertinent vulnerability databases, so as to identify issues involved and form a basis for development of a common classification scheme. Our objective is to shape and mature a classification scheme to accelerate research in the quantitative evaluation of risk levels as a measure of system security. © 2011 AICIT.

The effects of finite ion Larmor radius (FLR) corrections, Hall current and radiative heat-loss function on the thermal instability of an infinite homogeneous, viscous plasma incorporating the effects of finite electrical resistivity, thermal conductivity and permeability for star formation in interstellar medium have been investigated. A general dispersion relation is derived using the normal mode analysis method with the help of relevant linearized perturbation equations of the problem. The wave propagation is discussed for longitudinal and transverse directions to the external magnetic field and the conditions of modified thermal instabilities and stabilities are discussed in different cases. We find that the thermal instability criterion gets modified into radiative instability criterion. The finite electrical resistivity removes the effect of magnetic field and the viscosity of the medium removes the effect of FLR from the condition of radiative instability. The Hall parameter affects only the longitudinal mode of propagation and it has no effect on the transverse mode of propagation. Numerical calculation shows stabilizing effect of viscosity, heat-loss function and FLR corrections, and destabilizing effect of finite resistivity and permeability on the thermal instability. The outcome of the problem discussed the formation of star in the interstellar medium. © 2016, Indian Academy of Sciences.

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