Vellore Institute of Technology (VIT) is a private university located in&nbsp;Tamil Nadu, India. Founded in 1984, as Vellore Engineering College, the institution offers 20 undergraduate, 34 postgraduate, four integrated and four research programs. It has campuses in Vellore, Amravati, Bhopal and Chennai.

VIT is one of the top ranked private universities in India according to NIRF, THE and QS Rankings.&nbsp;Govt. of India has recognized&nbsp;VIT, Vellore as an&nbsp;Institution of Eminence. This has allowed VIT to take independent quality initiatives and move up in world ranking.

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VIT University

Department of Smart Computing

Peristaltic transport of a Casson fluid in a channel with perme-able walls is investigated. Exact analytical solution of the flow quantities are developed under long wavelength and low Reynolds number assumptions. The effects of Darcy number and yield stress on the pumping characteristics are obtained and discussed. It is observed that for a given δP, the flux Q̄ decreases with increasing Darcy number. Further, it is noticed that for a given δP, the flux Q̄ decreases with increasing yield stress τ . This may be due to the yield stress behaviour of the Casson fluid. The results of the trapping phenomenon are analyzed. Four different wave forms are considered. The comparison of the different wave forms is discussed. © 2014 Academic Publications, Ltd.

Department of Mathematics

School of Advanced Sciences

Vellore Campus

School of Information Technology and Engineering

World University root node

International Journal of Pure and Apllied Mathematics

PERISTALTIC TRANSPORT OF A CASSON FLUID IN A CHANNEL WITH PERMEABLE WALLS

Liquid flat plate collector (solar flat plate collector) is one of the important applications in solar thermal system. The development in solar photovoltaic is an emerging challenge for the solar thermal system. In the current work an attempt has been made to optimize the number of transparent covers and refractive index to improve the optical efficiency and thermal efficiency for the collector. Performance of the liquid flat plate collector at VIT University Vellore has been simulated numerically for January 21st at an interval of half an hour with different numbers of transparent covers (0–3) and different refractive index values ranging from 1.1 to 1.7. The formulation and solutions are developed with simple software Microsoft Office Excel to result the performance characteristics. The result shows that the efficiency of the flat plate collector increases with an increase in number of covers and decreases after an optimum number of covers. It also decreases with an increase in refractive index. The combination of optimum number (two) and lower refractive index (1.1) results improved useful heat.

VIT Unitversity

Fulltext

Journal of Renewable Energy

Study on Effect of Number of Transparent Covers and Refractive Index on Performance of Solar Water Heater

In this paper, we present an efficient visualization framework for the construction of streamlines, streamribbons and streamtubes on unstructured grids that combines the advantages of clustering methods and illuminating rendering techniques to generate a concise and informative depiction of complex flow structures. Given a 3D vector field, we first generate a number of streamlines covering the important regions based on an entropy measurement. A specialized version of the Runge-Kutta method has been developed to speed up the integration of flow data. Then we decompose the streamlines into different groups based on a categorization of vector field data, wherein the streamline pattern in each group is ensured to be coherent or nearly coherent. We have also derived for each group, we select a set of representative streamlines and render them in an illustrative manner to enhance depth cues and succinctly show local flow characteristics to construct streamribbons and streamtubes, respectively. The results demonstrate that our approach can generate a visualization that is relatively free of visual clutter while facilitating perception of salient information of complex 3D vector fields and effectively illustrate both directional and structural information of 3D vector fields. © 2006-2014 Asian Research Publishing Network (ARPN).

ARPN Journal of Engineering and Applied Sciences

An illustrative visualization framework for 3D vector fields using streamtubes and streamribbons

Today's networks are essential to our modern world, and a thorough understanding of how they act is vital to their efficient operation. Fortunately, data on networks is plentiful; by visualizing this network data, it is possible to greatly improve our understanding and also should provide the security for network data. The motivation of this paper is on visualizing the network data associated with a network image or object that will be send in the format of image at the sender and at the receiver ends that image or object will be encrypted in the form of rich text format that will be decrypted form at the receiver end. The technique sending data in image format will provide a greatest security for World Wide Web data transmission on network. We can also visualize that what data is behind on image and rendering of the image. Finally, this proposal is trying to encrypt and decrypt image visualization using computer visualization techniques. © 2006-2014 Asian Research Publishing Network (ARPN).

Encrypting and decrypting image using computer visualization techniques

Virtualization and cloud computing together became necessity in today’s world. Creating an effective and secure virtual private cloud is possible through various methods. Deploying applications in such virtual environment and utilizing the complete essence of cloud computing is essential for making cloud computing to grow to next level. This paper describes the implementation of cloud computing through virtualization, which creates a private cloud environment using Ubuntu Enterprise Cloud and demonstrates storage provisioning technique for providing appropriate resources for the client system as per demand using lamp server application in server system. Introducing such technique will enhance the usability of the cloud computing using applications present in the cloud environment. Encryption and decryption of files in the storage ensures the security and the integrity. © Research India Publications.

International Journal of Applied Engineering Research

An implementation of storage provisioning in private cloud

An Issue Tracking System (ITS) is a web-based tool that organizes and perpetuates list of issues, as needed by an organization. It also restrains a knowledge base, containing information for resolutions to each project team's common problems. Penetration of the contemporary tools and techniques of an Issue tracking system using cloud is an emerging trend. There is an increasing interest in Issue Tracking Systems based on cloud computing architecture for providing the resources on the demand basis. This system will be owned by a Company, to serve for their teams. It will incorporate all requirements needed for the interaction between Project team and IT support team and get the project team members problems solved. In this paper we develop and deploy an Issue Tracking System in private cloud using open source technologies like Eucalyptus, VMware. The cloud computing architecture for this system helps to achieve scalability, persistent storage, distributed access, efficient resource usage and interoperability of the system objects. © Research India Publications.

Implementation of an issue tracking system in private cloud

Proactive network offers several to communicate on protocol. Protocol has various features. Proactive protocol PNP is a general purpose communication. It has only one TCP port. Proactive communication is performed using proactive communication protocol. Procative network protocol is used over SSL. It uses ciphering which is used in order to perform secure communication. The IP address and TCP on which the message router is bound is printed on the standard output.

Advanced Materials Research

Study on Surveillance of Proactive Network Using Frame Work

The present study investigates the hydromagnetic flow of a nanofluid in a two-dimensional porous channels between slowly expanding or contracting walls. Assuming symmetric injection (or suction) along the uniformly expanding porous walls and using a similarity transformation, the governing flow equations are reduced to nonlinear ordinary differential equations. The resulting equations are then solved analytically by using the homotopy analysis method (HAM). The convergence of the obtained series solutions is analyzed through the minimization of the averaged square residual error. A comparison between analytical and numerical solutions is presented for the validation in both graphical and tabular forms. The results obtained by HAM are in very good agreement with numerical solutions obtained by the shooting method coupled with a Runge-Kutta scheme. The effects of various physical parameters such as wall expansion ratio, Brownian motion parameter, thermophoresis parameter, and Lewis number on flow variables are discussed. Analysis shows that for the case of contracting walls, the temperature increases for a given increase in Brownian motion parameter, and the thermophoresis parameter. In addition, the nanoparticle concentration increases with an increase in Brownian motion parameter and Lewis number. © 2014 by Begell House, Inc.

Computer Science

School of Computer Science and Engineering

Chennai Campus

Journal of Porous Media

HYDROMAGNETIC FLOW OF A NANOFLUID IN A POROUS CHANNEL WITH EXPANDING OR CONTRACTING WALLS

A program that infect computers, destroy the data, steal personal information, get some valuable information, we focus on a particular kind of malware that is key logger. A keylogger monitors a user input and keeping a log of all keys that are pressed. There are various tracking techniques such as computer monitoring, software key stroke recorder, key stroke logger, Keyboard sniffer and snoop ware, they can track virtually any running program on a system. Some of the keylogger known as screen scrapers. This takes the snapshot of the screen. It can be defined two category hardware and software keylogger. Hence we are working on software keylogger which are monitoring on windows operating system. In this when a user performing an event (pressing a key) in the windows operating system, the keyboard driver of the operating system translate a key stroke in to a windows message is called "wm_keydown". There are four main methods developing keylogger keyboard state table method, windows keyboard hook method, kernel-based keyboard filtering driver method. in this paper we used a new method getkeystate, that is variation of windows keyboard hook method, which is unique to windows message mechanism. © Research India Publications.

Department of Digital Communications

Department of Software and Systems Engineering

A new approach to cyber security through keylogger

This work reports power efficient high throughput VLSI hardware architecture for RC4 stream cipher. Two VLSI architectures have been developed for RC4 algorithm which shows power efficiency and frequency/ throughput improvement compared to the existing FPGA implementations. Naturally, the ASIC implementation of the same shows more power and PDP reduction compared with existing FPGA architectures. The first architecture Proposed-I (S-box) developed by replacing the RAM based S-box, withcombinational circuits providing a means for reducing the critical path. Pipelining applied in the S-box increases the speed and reduces the power consumed. Second architecture Proposed-II (LFSR) has been developed using LFSR and FSM based control for key scheduling algorithm. These architectures were first implemented by targeting for FPGA and the same designs were targeted for an ASIC chip. Finally, a novel VLSI architecture has been proposed with an intention of sharing the S-box resources for RC4 and AES algorithm expectedly saving area and power. © 2014 Inderscience Enterprises Ltd.