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Welcome to Journal of Theoretical and Applied Information Technology

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Journal receives papers in continuous flow and we will consider articles from a wide range of Information Technology disciplines encompassing the most basic research to the most innovative technologies. Please submit your papers electronically to our submission system at http://jatit.org/submit_paper.php in an MSWord, Pdf or compatible format so that they may be evaluated for publication in the upcoming issue. This journal uses a blinded review process; please remember to include all your personal identifiable information in the manuscript before submitting it for review, we will edit the necessary information at our side. Submissions to JATIT should be full research / review papers (properly indicated below main title).

Journal of Theoretical and Applied Information Technology April 2011 | Vol. 26. No.2

Paper ID:	14203-JATIT
Title:	EFFICIENT METHOD FOR SECURELY MANAGING PASSWORDS
Author:	ASMA TANVEER, AIHAB KHAN, MALIK SIKANDER HAYAT KHIYAL, SYED AFAQ HUSSAIN
Source:	Journal of Theoretical and Applied Information Technology Vol 26. No. 2 -- 2011
Abstract	A password is a secret string that is used for security and authentication purposes and to provide access to a resource. Therefore it is more vulnerable to attacks such as hacking, phishing, identity theft, Cyber stalking and website cloning. But it is difficult for humans to remember large no of passwords. This research is formulated to provide a source to users by which they can conveniently and securely manage their passwords. The user is authorized to enter the site information, ID and password in a list which is secured by a Master Password which is encrypted. AES encryption algorithm is also compared with DES encryption algorithms w.r.t time, size of file after encryption and we have concluded that AES algorithm is faster than DES. AES has only known attack that is brute force attack which allows Hacker to try different combination of words and characters to break security. AES has high performance as compared to DES
Keywords	Phishing, Authentication, Password, Master Password Security, AES, DES
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Paper ID:	14115-JATIT
Title:	ACTIONABLE FILTERING THEMES IN EXECUTIVE INFORMATION SYSTEMS FOR MANAGING INFORMATION OVERLOAD
Author:	SAMEER DUTTA
Source:	Journal of Theoretical and Applied Information Technology Vol 26. No. 2 -- 2011
Abstract	Executives are subjected to relentless onslaught of information. Many strategies have been suggested in the past to negotiate the torrents of information flows confronting executives. This paper recommends modifying the structure of information flows reaching the executives as an effective strategy to manage information overload. Such a strategy will enhance the actionability of the decisions taken by the executives who use information inflows as inputs to such decision making. Autonomous software agents can be used for the purpose of building more effective information inflow structures.
Keywords	Information Overload, Autonomous Agents, Executive Information Systems
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Paper ID:	14024-JATIT
Title:	DESIGNING AND IMPLEMENTATION OF ELECTRONIC PAYMENT GATEWAY FOR DEVELOPING COUNTRIES
Author:	Ailya Izhar, Aihab Khan, Malik Sikandar Hayat Khiyal, Wajeeh Javed, Shiraz Baig
Source:	Journal of Theoretical and Applied Information Technology Vol 26. No. 2 -- 2011
Abstract	In this paper a brief overview of electronic payment gateway is provided. This paper addresses the requirements for an electronic payment gateway from both the customers' and the merchants' point of view. Most of the population doesn’t trust on the local existing online payment gateway because it is not very secure. Mostly people want to adopt electronic payment system as it has lots of advantages. They need such a gateway that fulfill their all requirements and provide security, privacy etc. On the basis of these requirements and the local infrastructure, we propose an electronic payment gateway for local environment.
Keywords	E-commerce, Electronic Payment, Payment Gateway, Security, Privacy
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Paper ID:	14071-JATIT
Title:	UNIPLANAR QUASI YAGI ANTENNA FOR CHANNEL MEASUREMENTS AT X BAND
Author:	K.Prabhu Kumar, Dr.P.S.Brahmanandam, B.T.P.Madhav, K Ch Sri Kavya, V.Shiva Kumar, T.RaghavendraVishnu, D.Rakesh
Source:	Journal of Theoretical and Applied Information Technology Vol 26. No. 2 -- 2011
Abstract	Uniplanar quasi yagi antenna has gained considerable attention recently as a method of producing a broad bandwidth antenna array with a well defined end-fire radiation pattern. An important advantage of the novel quasi-yagi antenna designed in x-band is its ability to be scaled linearly to any frequency band. This paper presents simulation results of scaled quasi-yagi antenna designed to operate around 10GHz using Agilent High frequency Structure Simulator (HFSS) software. Return loss, input impedance smith chart, radiation patterns, E-field, H-field and current distributions are simulated and presented.
Keywords	Uniplanar, Quasi, X Band, HFSS, E-field, H-field
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Paper ID:	14072-JATIT
Title:	PERFORMANCE EVALUATION OF MICROSTRIP SQUARE PATCH ANTENNA ON DIFFERENT SUBSTRATE MATERIALS
Author:	D.Rakesh, P.Rakesh Kumar, Prof. Habibulla Khan, K Ch Sri Kavya, B.T.P.Madhav
Source:	Journal of Theoretical and Applied Information Technology Vol 26. No. 2 -- 2011
Abstract	The demand of small size electronic systems has been increasing for several decades. The physical size of systems is reduced due to advancements in integrated circuits. With reduction in size of electronic systems, there is also an increasing demand of small and low cost antennas. Patch antennas are one of the most attractive antennas for integrated RF front-end systems due to their compatibility with microwave integrated circuits. To fulfill the demand of integrated RF front-end systems, a design of micro strip patch antenna for 60GHz microwave applications has been introduced. This antenna maintains a maximum gain of 7.91dB for far field region with respect to paraboloidal rectangular aperture antenna. It is actually a coaxial probe fed antenna for impedance matching with 50 ohms coaxial cable. This antenna works well in the frequency 60GHz with a maximum at 60.15GHZ. It is basically a low cost, light weight, medium gain and narrow band antenna for microwave applications such as a feeding element for other antennas and in research institutes as a reference antenna. It can also be used at the output of signal conditioning circuit for receiving signals from micro electromechanical sensors.
Keywords	Square patch, Substrate Materials,
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Paper ID:	14156-JATIT
Title:	HYPER GRAPH AND COPROCESSOR DESIGN FOR VLSI PARTITIONING PROBLEMS
Author:	M. Thiyagarajan, R. Manikandan
Source:	Journal of Theoretical and Applied Information Technology Vol 26. No. 2 -- 2011
Abstract	VLSI Cell partitioning is considered as Hypergraph model, which can be a treated a randomized algorithm through the markov chain. This approach helps to give a probabilistic algorithm through transition probability matrices of a markov chain for VLSI partitioning. In the second model SAT problem situation is used to model FPGA Layout. As almost all problems posed in VLSI design and analysis are NP-Complete, any attempt to solve them is to identify some reduction tool to NP-Complete problems. One such reduction is attempted through SAT Problem.
Keywords	Hyper Graph, Markov Chain ,Max-Min Cut, Adjacency Matrix, SAT Problem, FPGA Layout, NP-Complete Reduction, Formal Language , Time Complexity
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Paper ID:	14073-JATIT
Title:	A METHODOLOGY FOR THE DESIGN OF AN ELECTRICITY THEFT MONITORING SYSTEM
Author:	SOLOMON NUNOO, JOSEPH C. ATTACHIE
Source:	Journal of Theoretical and Applied Information Technology Vol 26. No. 2 -- 2011
Abstract	Utility companies in Ghana estimate that electricity theft costs them over a billion US dollars in annual revenues. The purpose of this work is to provide an algorithm for the design of electricity theft monitoring system which allows violators to be detected at a remote location. It begins with the analysis of losses in electrical power systems. The bulk of these losses are caused by electricity theft, rather than other possibilities such as poor maintenance and calculation and accounting mistakes, though some power systems may suffer from both. Other aspects discussed include the various forms of theft practices, methodology for detection of theft, generating the theft case algorithm using the backtracking algorithm method and communicating these data from the consumer premises to the substation using the existing power lines. Appropriate conclusions and recommendations were given from the information gathered.
Keywords	Electricity Theft, Monitoring System, Algorithm, Power Line Communication
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Paper ID:	14149-JATIT
Title:	URBAN GROWTH AND LAND USE/LAND COVER CHANGE OF POKHARA SUB-METROPOLITAN CITY, NEPAL
Author:	BHAGAWAT RIMAL
Source:	Journal of Theoretical and Applied Information Technology Vol 26. No. 2 -- 2011
Abstract	Urban development has enlarged the modification of natural resources and has changed land use and land cover patterns. Urbanization is a process of increase of modernization system which modifies the socioeconomic activities and revolutionizes the land use practice according to time frame. Due to the proximate and underlying causes, land use and land cover change has become the main challenge of the present world. Due to the huge course of urbanization, the major cities of the world are compelled to face the severe threats. Various causes of the urbanization process bring the unrestrained impact on land use and land cover change. An unplanned urbanization process is becoming the major problem in the developed and developing countries. Population growth, migration, political instability, economic opportunities, centralized plans and policies of the government, accessibility of physical infrastructure, globalization are some of the major causes of the high level of urbanization in Nepal. This paper presents the historical urban growth phenomenon and analysis of land use and land cover change of Pokhara sub-metropolitan by utilizing remote sensing imagery and GIS. In the study, Markov chain model has been used to predict future changes based on the rate of past change in IDRISI GIS. The landsat images of 1977 MSS, 1990 TM, 1999 ETM+ and 2010 TM are rectified and registered in Universal Transverse Mercator (UTM) zone 44N. Supervised classification system has been used to classify the images of different land use categories. Six land use classes have been identified: Urban (Built-up), water body, open field, forest cover, cultivated land and sandy area. Urban land use change for the year 2021 was modeled using a Markov chain based approach. For the projection of 2021, transitional probability matrix table from the land use land cover map of 1999 and simulated map of 2010 is derived. Projected land cover changes show a growing tendency in urban land use, which might threaten the areas that are currently reserved for forest and agricultural lands.
Keywords	Urban growth, Land use/Land cover, Infrastructure, Satellite imagery, Markov Chain Model GIS.
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