Informatics Publishing Limited

Ajay Sharma , T. D. Verma , P. Kaushal , Chander Kant

Abstract

Kikar (Acacia nilotica Willd.) and Shisham (Dalbergia sissoo Roxb.) are integral part of agro-ecosystem in the plains of North-West India. In the recent past large scale mortality of these trees was observed in this area and other parts adjoining the North-West and North-East Himalayas. So as to investigate the different mortality factors of these trees in the State of Punjab some of the areas with large scale of mortality of these trees were surveyed during the year 2001 determining the insect-pest association. It was found that grubs of Coleopteran beetles were most predominant in dead and drying trees in most of the areas. However in certain case termites and bark eating caterpillars were also found associated with Kikar and Shisham trees. A detailed account of insect-pests associated with Kikar and Shisham trees and survey report in particular have been discussed in the text.

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Ravi Ranjan Randey ¹, Chander Kant ¹, Marshal Dhayal ², C.P. Sharma ¹, Krishan Kumar Saini ¹

Affiliations
1 Polymeric and Soft Material Section, National Physical Laboratory, New Delhi, 110012, IN
2 Centre for Cellular and Molecular Biology, Uppal Road, Hyderabad, 500007, IN

Abstract

Biosensors have recently gained much attention in the field of health care for the management of various important analytes in a biological system. Cholesterol oxidase (ChOx) has been immobilized onto sol-gel derived nanostructured Ru³⁺ ion doped TiO₂ film deposited on indium-tin-oxide (ITO) coated glass substrate. These films are characterized by XRD, SEM, AFM, XPS techniques. Electrochemical studies reveal that Ru³⁺ ion doped TiO₂ film provides electroactive surface for the loading of ChOx and enhances electron transfer rate in the ChOx/ Ru³⁺ ion doped TiO₂ film /ITO bioelectrode. The observed results show application of sol-gel derived Ru³⁺ ion doped TiO₂ film for enhanced biosensing application as compared to undoped TiO₂.

Keywords

TiO₂, Ru³⁺ Ion, Electrochemical Studies, Nanostructured

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Mahesh Kumar Yadav ¹, Chander Kant ²

Affiliations
1 Nims University, Jaipur, Rajasthan, IN
2 Department of Computer Science & Applications, Kurukshetra University, Krukshetra, IN

Abstract

A mobile adhoc network (MANET) is a selfconfiguring network that can have an arbitrary topology along the time. Each mobile host works as a router and it is free to move randomly and connect to other hosts arbitrarily. Thus, the network topology can change quickly and unpredictably since there may exist a large number of independent ad hoc connections. The default mechanism of route discovery in MANETs is flooding. The routing overheads caused because of broadcasting is a bottleneck i performance of AODV protocol. In this paper, improved AODV mprotocol is proposed, analyzed and implemented that follows an efficient method of route discovery which adjusts itself dynamically based on the network density of MANET. The proposed algorithm is analyzed in GloMoSim environment and implemented on base protocol as AODV. The simulation results show that improved- AODV (I-AODV) protocol significantly reduces the no. of rebroadcasts and hence reduces the routing overheads caused due to broadcast storm in the network. The results show great improvements nover simple AODV protocol, in terms of performance measures such as routing overheads, collisions rate, end to end delay, no. of broadcast requests etc. hence solves the broadcast bottleneck in AODV protocol.

Keywords

MANET, AODV, Broadcast, MANETs, GloMoSim, Collision Rate, Mobility, Route Discovery.

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Sachin Gupta ¹, Chander Kant ¹

Affiliations
1 Department of Computer Science and Applications, K.U., Kurukshetra, Haryana, IN

Abstract

In this paper, some successful iris recognition methods are listed and their performances are compared. Furthermore, the existing approaches, challenges and conclusion are described. The purpose of 'Iris Recognition' is to recognize a person from his/her iris image. Every individual has a unique iris. Iris is an important biometric method with high accuracy, performance and low error rate. Iris recognition is one of the most reliable and accurate biometric techniques available.

Keywords

Iris Recognition, Biometrics, Enrollment, Verification.

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Vikas Goyal ¹, Chander Kant ¹

Affiliations
1 Deptt. of Comp. Sc. & Appl., Kurukshetra University, Kurukshetra, IN

Abstract

This paper gives a brief view of Cloud computing by giving its definition, advantages, components, types, security issues & current security techniques. By reading this paper, an individual surely will have a clear idea about the introduction, Advantages&Security challenges of Cloud computing.

Keywords

Private Cloud, Public Cloud, Hybrid Cloud.

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Neha Bhatia ¹, Himani ², Chander Kant ¹

Affiliations
1 Department of Computer Science and Application, Kurukshetra University, Kurukshetra, IN
2 Doon Valley Institute of Engineering and Technology, Karnal, IN

Abstract

Biometric authentication using fingerprint is one of the unique and reliable method of verification processes. Biometric System suffers a signiucant loss of performance when the sensor is changed during enrollment and authentication process. In this paper fingerprint sensor interoperability problem is addressed using Gaborulter and classifying images into good and poor quality. Gaborulters play an important role in many application areas for the enhancement of various types of fingerprint images. Gaborulters can remove noise, preserve the real ridges and valley structures, and it is used for fingerprint image enhancement. Experimental results on the FVC2004 databases show improvements of this approach.

Keywords

Biometrics, Fingerprint Sensor, Sensor Interoperability, Gabor Filter.

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