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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
February 2014 | Vol. 60 No.2

Title:	THE IMPACT OF LOCATION BASED ATTACKS ON GEOGRAPHICAL ROUTING PROTOCOLS
Author:	B.MUTHUSENTHIL, S.MURUGAVALLI
Abstract:	Several applications of mobile ad hoc networks select geographical routing especially the Greedy Perimeter Stateless Routing (GPSR) protocol due to its scalability, efficiency, and ability to support location based applications. However, there are many security issues in protecting location information, which can easily be abused by attackers. Location based adversarial activities affect the operation and performance of geographical routing protocols. There are only a few works on the literature that studied the impact of location based attacks on geographical routing. This work analyzes the impact of malicious nodes on the GPSR performance associated with fake location. This proposal identifies a set of possible location based attacks and analyzes the local problems that arise from the location based adversarial activities. Finally, it demonstrates the overall impact on the routing performance, by simulating the network in various attack scenarios. This study illustrates the effect of the adversarial activities with respect to the packet delivery ratio, overhead, average end-to-end delay, routing loops, packet dropping probability, and location error rate. The simulation results concluded that the overall routing performance degrades, depending on the type and percentage of adversaries.
Keywords:	Location Based Routing, Location Information, Active Attack, Passive Attack, And Impacts
Source:	Journal of Theoretical and Applied Information Technology 20 February 2014 -- Vol. 60. No. 2 -- 2014
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Title:	TMAS-TRIO MEASURE ASSESMENT SCHEME FOR EFFICIENT ROUTING IN WIRELESS SENSOR NETWORKS
Author:	NAVANEETHAN.C, MUTYALA V.S.RATHNA KUMARI, THAMARAI SELVI.V, N.D.VIKRAM
Abstract:	Wireless sensor networks have become one of the buzzwords in the field of networks. The challenging issue in wireless sensor networks is to design energy efficient routing in wireless sensor networks which is mainly focuses on increasing the network lifetime that emphasizes on main aspects namely residual energy, link condition, network lifetime. We introduced an appealing mechanism that supports for energy efficient routing titled as” Trio Measure Assessment Scheme for Efficient Routing in Wireless Sensor Networks”. In TMAS algorithm prioritized transmission count (PTX) is used for calculating node status and link quality in addition to this we will balance the load for enhancing the network life time. The main intention to introduce the scheme of load balancing is that sensor nodes that are closer to sink carries more inter-cluster traffic and hence deplete their energy faster than far away sensor nodes, So, by assessing the node status and link quality and load balancing we will get maximum results for efficient routing which will increase the network life time . Our Simulation results on TMAS prove that it outperforms the network lifetime and efficiently maintains the link quality among the clusters.
Keywords:	TMAS,PTX ,Node Status, Link Quality, Network Lifetime, Inter-Cluster Traffic.
Source:	Journal of Theoretical and Applied Information Technology 20 February 2014 -- Vol. 60. No. 2 -- 2014
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Title:	A SURVEY ON REPUTATION BASED SELFISH NODE DETECTION TECHNIQUES IN MOBILE AD HOC NETWORK
Author:	S.SENTHILKUMAR, J.WILLIAM
Abstract:	Mobile Ad hoc Network (MANET) is well known for its limited transmission range of wireless network interface. Hence, multiple hops (multi-hops) may be needed for exchanging the information from one node to another across the network without any base stations or routers. In MANETs, as there is no hierarchy among nodes, every node is responsible for forwarding packets to its neighbouring nodes. Due to severe resource constraints like memory, computing power, energy, bandwidth and time, some nodes may not participate in forwarding the packets for saving its resources. The presence of selfish behaviour among nodes may lead to network partitioning and makes a major negative impact in throughput and the network operation. To avoid such circumstances selfish node deduction is very important. Already many selfish node detection mechanisms have been developed and still exist. And this survey is to evaluate some of the reputation based selfish node detection mechanisms and to analyze its merits and demerits. This paper compares different methods based on QoS metrics as well as on node’s behavioral analysis for reducing the effect of selfish nodes in mobile ad hoc networks.
Keywords:	MANET, Multi-Hops, Selfish Nodes, QoS
Source:	Journal of Theoretical and Applied Information Technology 20 February 2014 -- Vol. 60. No. 2 -- 2014
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Title:	CONCEPTUAL MODEL OF IT GOVERNANCE FOR HIGHER EDUCATION BASED ON COBIT 5 FRAMEWORK
Author:	HERU NUGROHO
Abstract:	Effective governance in an organization does not happen by coincidence. The success of implementing effective governance in an organization associated with the right pattern or fit for the organization so that they can be a complement or supplement of organization's strategic focus. Information technology (IT) governance is not a static concept but rather processes inherent in the organization. Decentralized organizations such as a university need a regular review to renew the IT governance structure to take account of changing business and technological environment. However, the mechanism IT governance in an organization will depend on the characteristics and needs of the organization. ISO/IEC 38500 help the people at the highest levels in the organization to understand and fulfill their legal obligations, regulations and ethics in relation to the use of IT in their organizations by providing key principles. COBIT 5 framework provides guidance how IT governance should be built by taking into account the area of enterprise governance and management of governance areas that both have their roles within the scope of IT governance. Conceptual model of IT governance is built based on the main principles that should exist in the process of governance with COBIT 5 framework guide as a reference how the governance of IT must be organized with attention to area governance and management areas, each rendered in a particular domain so that it will be a guide for higher education for developing IT blueprint that not only seen as supporting the IT aspects of academic and non-academic activities but look at the overall aspects of the scope of university governance.
Keywords:	ISO/IEC 38500, IT Governance, COBIT 5 Framework, University Governance, key Principles
Source:	Journal of Theoretical and Applied Information Technology 20 February 2014 -- Vol. 60. No. 2 -- 2014
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Title:	S-MSE: ASEMANTIC META SEARCH ENGINE USING SEMANTIC SIMILARITY AND REPUTATION MEASURE
Author:	P. VIJAYA , G. RAJU , SANTOSH KUMAR RAY
Abstract:	In order to increase web search effectiveness, Meta search engines are invented to combine results of multiple search engines as a result of larger coverage of indexed web. Meta search engine is a kind of system which is useful for internet users to take advantage of multiple search engines in searching information. Recently several approaches were developed using ontology and ranking measures. Accordingly, Meta search engine is developed here using ontology and semantic similarity measure. In order to bring semantic in keyword matching, a semantic similarity measure (SSM) is developed. Here, every concept sets are matched with the title sets using SSM that consider the hyponyms and hyponyms of the keywords presented in the title sets. Along with three different ranking measures relevant to contents, title sets and raking value given by the standard search engines are effectively combined to improve the effectiveness. Finally, the experimentation is carried out using different set of queries and the performance of the meta-search engine is evaluated using TREC-style average precision (TSAP) measure. The proposed semantic meta-search engine provides 80% TSAP which is high compared with existing search engine and meta-search engine.
Keywords:	S-MSE, Search Engine, Semantic Similarity, Reputation Measure, TREC, TSAP
Source:	Journal of Theoretical and Applied Information Technology 20 February 2014 -- Vol. 60. No. 2 -- 2014
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Title:	PATTERN REPRESENTATION MODEL FOR N-ARY RELATIONS IN ONTOLOGY
Author:	VINU P.V., SHERIMON P.C., RESHMY KRISHNAN, YOUSSEF SAAD TAKRONI
Abstract:	The vision of Semantic Web is to make web resources more accessible to automated resources. Here the role of ontology is to provide vocabulary for metadata description with computer-understandable semantics. The main components of ontology are concepts, relations and individuals. The most common type of relation is binary relation that maps between a single subject and a value. Sometimes there exist n-ary relations in ontology. W3C provides several patterns to represent n-ary relations. In this paper we discuss the issues in n-ary relations, the concept of RDF reification and provide an appropriate pattern to represent the n-ary relations. The examples of n-ary relations are taken from Seafood Ontology we developed earlier.
Keywords:	N-Ary Relations, Reification, Semantic Web, OWL, RDF
Source:	Journal of Theoretical and Applied Information Technology 20 February 2014 -- Vol. 60. No. 2 -- 2014
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Title:	THE BLOCK STORE OF BLOCK-BASED PROGRAMMING APPROACH
Author:	MUSTAFA ALMATARY, MARINI ABU BAKAR AND ABDULLAH MOHD ZIN
Abstract:	Block-based Programming approach is an software development approach that makes programming task easier by enabling end user programmers to develop applications by integrating software blocks. In order for block based programming approach to be successful, there is a need for a large number of blocks to be developed in various application domains. These blocks must be developed based on a certain standard so that they can easily be combined with other blocks to create applications. These blocks must also be distributed and shared so that they are available for end users. This paper describes the concept and implementation of block store, which is a is a web based repository system that enables blocks to be managed and shared.
Keywords:	End-User Programming, Software Repository, Block-Based Software Development, Component-Based Software Development.
Source:	Journal of Theoretical and Applied Information Technology 20 February 2014 -- Vol. 60. No. 2 -- 2014
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Title:	REAL CODED GENETIC ALGORITHM (RCGA): A NEW RCGA MUTATOR CALLED SCALE TRUNCATED PARETO MUTATION
Author:	SIEW MOOI LIM, MD. NASIR SULAIMAN, ABU BAKAR MD. SULTAN, NORWATI MUSTAPHA, BIMO ARIO TEJO
Abstract:	This paper presents a comparison in the performance analysis between a newly developed mutation operator called Scaled Truncated Pareto Mutation (STPM) and an existing mutation operator called Log Logistic Mutation (LLM). STPM is used with Laplace Crossover (LX) taken from literature to form a new generational RCGA called LX-STPM. The performance of LX-STPM is compared with an existing RCGA called LX-LLM on a set of 10 benchmark global optimization test problems based on a few performance criterions to investigate the reliability, efficiency, accuracy and quality of solutions of both optimization algorithms. The final outcomes show that LX-STPM is far superior than LX-LLM at all aspects.
Keywords:	Real Coded Genetic Algorithms, Mutation Operator, Crossover Operator, Global Optimization
Source:	Journal of Theoretical and Applied Information Technology 20 February 2014 -- Vol. 60. No. 2 -- 2014
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Title:	A CRITICAL OVERVIEW OF EXISTING QUERY PROCESSING SYSTEMS OVER HETEROGENEOUS DATA SOURCES
Author:	Naoual MOUHNI, Abderrafiaa EL KALAY
Abstract:	In the past, to answer a user query, we generally extract data from one centralized database or from multiple sources with the same structure. then things have been changed and we are facing the fact that in some cases, it is necessary to use a set of data sources to provide a complete information. these sources are physically separated, but they are logically seen as a single component to the final user. Besides the structure heterogeneity, there is another important point for what specialists are trying to find a solution which is the semantic heterogeneity of data sources. In this paper we are going to provide a list of different approaches that treated the query processing problem on heterogeneous data sources under different angles
Keywords:	Query Processing, Heterogeneous Data Sources, Ontology, Data Warehousing, Federation
Source:	Journal of Theoretical and Applied Information Technology 20 February 2014 -- Vol. 60. No. 2 -- 2014
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Title:	THE ROAD AHEAD FOR THE INDIAN IT AND ITES INDUSTRY CONSIDERING ITS SERVICE OFFERINGS, DOMESTIC MARKET AND TECHNOLOGY TRENDS
Author:	LALIT S KATHPALIA, DR. R RAMAN
Abstract:	Offshoring has been a popular mantra over the past two decades. The Indian Information Technology (IT) companies are finding ways and means to retain their competitive advantage by changing delivery locations and giving value added services offering. This paper delves into the current state of the Indian IT services industry and attempts to find out the domestic IT services opportunity from perspective of Indian IT vendors. The paper attempts study the domestic IT market also explores the future of the Offshoring revolution for the Indian IT industry. The papers throws light on the domestic opportunity that are still left untapped and proposes a model for outsourcing, which can be adopted by Indian IT giants for long term sustainability of business.
Keywords:	Outsourcing, IT services, Domestic IT services, Indian IT Industry, Sustainability of Business
Source:	Journal of Theoretical and Applied Information Technology 20 February 2014 -- Vol. 60. No. 2 -- 2014
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Title:	DESIGN PARAMETER OPTIMIZATION BASED ON ARTIFICIAL BEE COLONY (ABC) ALGORITHM FOR MEMS ACCELEROMETERS
Author:	KRUSHNASAMY V.S, A.VIMALA JULIET
Abstract:	As MEMS technology continue to grow, MEMS device design optimization is becoming an interesting and important research issue. In order to design a MEMS device to meet the given specifications, the relationship between the device performance and various design parameters must be investigated. There are various optimization algorithms that can produce an optimized design of MEMS. Designing of MEMS accelerometer may include the parameters like Beam length, Beam width, Beam depth, Beam mass, proof mass etc. The primary intension of this research is to identify the optimal parameters to design an efficient accelerometer in MEMS. Here the optimization will be done by using Artificial Bee Colony Optimization (ABC) algorithm. This algorithm will overcome the issues of GA and the ABC based design parameter optimization technique will helpful to design MEMs accelerometer architecture. The fitness is based on the parameter die area with specified range. The implementation of the proposed method will be done by MatLab 7.12 and the performance will be analyzed with some existing methodologies.
Keywords:	ABC(Artificial Bee Colony), MEMS,Optimization, Accelerometer,GA
Source:	Journal of Theoretical and Applied Information Technology 20 February 2014 -- Vol. 60. No. 2 -- 2014
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Title:	PERFORMANCE ENHANCEMENT OF SHUNT ACTIVE POWER FILTER WITH FUZZY AND HYSTERESIS CONTROLLERS
Author:	K.SEBASTHIRANI, K.PORKUMARAN
Abstract:	This paper proposes fuzzy and hysteresis controllers based three phase Shunt Active Power Filter for current harmonic compensation to improve the performance of 3ɸ supply system feeding non- linear loads. The Shunt Active Power Filter is used to eliminate current harmonics. The dc link control strategy is based on the fuzzy logic controller. Gating pulses for the Shunt Active Filter is generated using Hysteresis current controller based Pulse width modulation technique. The proposed model is simulated in MATLAB/SIMULINK. Simulation results show that the dynamic behavior is better than the conventional Proportional- Integral (PI) controller and is found to be more robust for changes in load.
Keywords:	Shunt Active Power Filter(SAPF), Fuzzy Logic Controller(FLC), Hysteresis current controller, Harmonics, Total Harmonic Distortion (THD).
Source:	Journal of Theoretical and Applied Information Technology 20 February 2014 -- Vol. 60. No. 2 -- 2014
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Title:	A DECISION SUPPORT TOOL FOR MODELING TIME-TO-EVENT DATA IN POWER SYSTEMS
Author:	ABDOLVAHHAB FETANAT
Abstract:	Survival analysis, also known as time-to-event analysis, focuses on modeling waiting times until events of interest occur. This paper proposes statistical flowgraph models (SFGMs) as a suitable decision support tool for survival analysis in power systems. SFGMs are useful for modeling time-to-event data that result from a stochastic process. Analysis from the flowgraph model gives an entire waiting time distribution as well as cumulative distribution function, survivor function and hazard function for any total or partial waiting time. The importance of survival analysis in power system is demonstrated when our power supply is disrupted. Two examples illustrated in this paper demonstrate with clarity, the effectiveness of SFGMs to the survival analysis in power systems. One of the advantages of SFGMs is to reduce the multistate models into an equivalent binary-state model. Based on this study, the authors suggest that the use of SFGMs will help decision makers to identify weak points in the system in order to control system conditions.
Keywords:	Hazard; Power System; Statistical Flowgraph Model; Survival Analysis; Time-To-Event Data.
Source:	Journal of Theoretical and Applied Information Technology 20 February 2014 -- Vol. 60. No. 2 -- 2014
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Title:	DESIGN OF 0.92 GHZ ARTIFICIAL MAGNETIC CONDUCTOR FOR METAL OBJECT DETECTION IN RFID TAG APPLICATION WITH LITTLE SENSITIVITY TO INCIDENCE OF ANGLE
Author:	M. ABU, E. E. HUSSIN, A. R. OTHMAN, FAUZI. M. JOHAR, NORHIDAYAH M. YATIM, ROSE. F. MUNAWAR
Abstract:	In this paper, the new structure of Artificial Magnetic Conductor is presented. The AMC is designed to overcome the failure of detecting the RFID tag when placed near to the metal based object. It is too complicated to design an AMC at low frequency due to limitation of size and bandwidth. In this paper, the 0.92 GHz AMC is designed with different sizes and shapes of slots inserted into the square PEC patch. The size of single unit cell of this AMC is 45.5 mm x 45.5 mm. The AMC is designed in stacked layer to increase the bandwidth of single unit cell. The optimized AMC at 0.92 GHz frequency, had increase the performance of dipole antenna by return loss = -21.8 dB, gain = 3.0 4dB and directivity = 5.149.
Keywords:	Artificial Magnetic Conductor, RFID, Metal object detection
Source:	Journal of Theoretical and Applied Information Technology 20 February 2014 -- Vol. 60. No. 2 -- 2014
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Title:	NEW INTERACTIVE MULTIMEDIA APPLICATION MODEL USING OBJECTS STORAGE IN A DATABASE
Author:	HASAN HARASIS
Abstract:	This paper presents a new interactive multimedia application model which combines the advantages of object-oriented programming with aspect programming. The model proposes a structure for multimedia applications with a good reutilization of code in other applications and objects storage in databases. As a result, the global time spend for realization of an entire multimedia application is reduced and the size of the executing file is smaller.
Keywords:	Multimedia, Database, Object, Storage, Processing.
Source:	Journal of Theoretical and Applied Information Technology 20 February 2014 -- Vol. 60. No. 2 -- 2014
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Title:	APPLYING HYBRID GENETIC ALGORITHMS TO RECOVER FOCAL LENGTH, CAMERA MOTION AND 3D MODELS FROM SILHOUETTES
Author:	AMINE MOUAﬁ, RACHID BENSLIMANE, AZIZA EL OUAAZIZI
Abstract:	In this paper, a hybrid method is applied to recover parameters and motion of camera from a set of silhouettes of an object taken under circular motion. Camera parameters can be obtained by maximizing the total coherence between all silhouettes. Two optimization methods, the Powell optimizer (PO) and the Genetic algorithms (GA), are applied to maximize the silhouette coherence and their performances are compared for several experiments. To take advantage of the strengths of the two methods, we developed a hybrid method that combines the genetic algorithm and the Powell optimizer to improve the performances in term of convergence speed and accuracy. The recovered parameters are used for 3D image-based modeling to obtain high fidelity 3D reconstruction.
Keywords:	Hybrid Genetic Algorithms, Powell Optimizer, Silhouette Coherence, Parameters Estimation, Circular Motion
Source:	Journal of Theoretical and Applied Information Technology 20 February 2014 -- Vol. 60. No. 2 -- 2014
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Title:	LOGIC MODELLING AND MATHEMATICAL MODEL IN DEVELOPING A TREE SPECIES SELECTION PROTOTYPE
Author:	KAMARUDIN SHAFINAH, NORAIDAH SAHARI, MOHD HASAN SELAMAT, RUSLI ABDULLAH, RIZA SULAIMAN, MOHAMMAD MOHD IKRAM
Abstract:	Logic modeling and mathematical model can aid system analysts, system developers and programmers to construct a system during a system development process. Logic modeling and mathematical model are the techniques used in the system analysis phase. In the midst of the most common logic modeling, are decision tables and structured English. These techniques help the person in charge to develop a system through illustrations in order to give better understanding and for solving a problem specification. In this article, we briefly describe on decision tables, structured English and mathematical model. The article aims to explain the use of decision tables, structured English and mathematical model for the development of a tree species selection prototype for Malaysian forest plantation. The algorithms related to the analysis of the systems prototype were also presented in this article. Overall, the techniques are capable of supporting the data acquisition and presentation from the context of the given problem specification.
Keywords:	Logic Modeling, Decision Tables, Structured English, Mathematical Model, Prototype, Tree Species
Source:	Journal of Theoretical and Applied Information Technology 20 February 2014 -- Vol. 60. No. 2 -- 2014
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Title:	A MATHEMATICAL APPROACH FOR IMPROVING THE PERFORMANCE OF THE SEARCH ENGINE THROUGH WEB CONTENT MINING
Author:	S.SATHYA BAMA, M.S.IRFAN AHMED, A.SARAVANAN
Abstract:	Internet is a rapid growing technology that contains a vast and rich set of information stored on the web. To retrieve, share and to process all these information from the web, a tool has been created called search engine which plays an essential role for the web users. On searching the information from web servers through search engines, many irrelevant and redundant documents containing the required information will be retrieved and presented to the users. But this irrelevant and replicated information affects the performance of the search engine by wasting the user’s time by surfing the uninterested documents which is inefficient to the web users. So, to make the search effective, and to improve the performance of the search, many researchers turned their attention towards Web mining since web is used in almost all areas. Web content mining is a sub area under web mining that mines required and useful knowledge or information from the web content. Most existing algorithms focus on applying weight age only to the common terms in the documents by which the accuracy gets consecutively reduced. The performance of a search engine can be improved through this proposed approach based on term frequency ranking to mine the web contents.
Keywords:	Correlation Coefficient, Search Engines, Term Frequency, Web Content Mining, Web Content Outliers.
Source:	Journal of Theoretical and Applied Information Technology 20 February 2014 -- Vol. 60. No. 2 -- 2014
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Title:	PERFORMANCE ANALYSIS OF WLAN UNDER VARIABLE NUMBER OF NODES USING THE ADJUSTABLE PARAMETERS IN EDCA
Author:	A.ANITHA, J.JAYAKUMARI
Abstract:	This paper deals with the performance analysis of WLAN under variable number of nodes using the adjustable parameters such as TXOPLimit, CWmin, CWmax and AIFS in EDCA. The comparative analysis is done by varying the number of nodes and the adjustable Access Category (AC) parameters in the EDCA access mechanism. The throughput and delay parameters of the QoS are measured. The simulation is done using the Network Simulator NS-2.28 tool in RedHat Linux environment. The simulation results obtained gave a better performance improvement using the adjustable altered parameters in EDCA access method than the existing methods. The high TXOP Limit gave a better performance increase than the other parameters.
Keywords:	DCF, EDCA, TXOP Limit, QoS, Access category
Source:	Journal of Theoretical and Applied Information Technology 20 February 2014 -- Vol. 60. No. 2 -- 2014
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Title:	A STRUCTURAL EQUATIONS MODELING OF PURCHASING DECISION THROUGH E-COMMERCE
Author:	TOGAR ALAM NAPITUPULU, OKKY KARTAVIANUS
Abstract:	The purpose of the study is to explore the factors influencing customer buying decision through Internet shopping. Several factors such as information quality, firm’s reputation, perceived ease of payment, sites design, benefit of online shopping, and trust that influence customer decision to purchase from e-commerce sites were analyzed. Factors such as those mentioned above, which are commonly considered influencing purhasing decision through online shopping in other countries were hypothesized to be true in the case of Indonesia. A random sample comprised of 171 Indonesian people who have been buying goods/services through e-commerce sites at least once, were collected via online questionnaires. To test the hypothesis, the data were examined using Structural Equations Modeling (SEM) which is basically a combination of Confirmatory Factor Analysis (CFA), and linear Regression. The results suggest that information quality, perceived ease of payment, benefits of online shopping, and trust affect online purchase decision significantly. Close attention need to be placed on these factors to increase online sales. The most significant influence comes from trust. Indonesian people still lack of trust toward online commerce, so it is very important to gain customer trust to increase sales. E-commerce’s business owners are encouraged to develop sites that can meet the expectation of potential customer, provides ease of payment system, provide detailed and actual information and responsible for customer personal information and transaction records. This paper outlined the key factors influencing online shopping intention in Indonesia and pioneered the building of an integrated research framework to understand how consumers make purchase decision toward online shopping; a relatively new way of shopping in the country.
Keywords:	E-commerce; Online purchasing decision; Structural Equations Modeling; Regression; Confirmatory Factor Analysis
Source:	Journal of Theoretical and Applied Information Technology 20 February 2014 -- Vol. 60. No. 2 -- 2014
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Title:	PERFORMANCE ANALYSIS AND LOCATION IDENTIFICATION OF STATCOM ON IEEE-14 BUS SYSTEM USING POWER FLOW ANALYSIS
Author:	SUNDARARAJU.K, NIRMAL KUMAR.A, JEEVA.S, NANDHAKUMAR.A
Abstract:	FACTS devices open up wide and new opportunity for the enhancement of usable capacity in the power system. This paper presents a comprehensive analysis of STATCOM (STATic synchronous COMpensator) with IEEE-14 bus system concerning the problem of variable loading and losses. The power flow analysis is performed on a IEEE-14 bus system with and without STATCOM. Due to unequal loading, the most affected bus is identified and the compensation is done in order to improve the voltage for all the buses. The detailed investigations are carried out with different loading and the performance of the IEEE-14 bus system is examined. The voltage regulation and the reactive power compensation upto critical point of voltage stability in the system is shown through proper output curves. These investigations indicate the need of power flow analysis and location of STATCOM on the proposed system.
Keywords:	Flexible AC Transmission Systems (Facts), Static Synchronous Compensator(STATCOM), Power Flow Analysis, Ranking Analysis, Voltage Regulation
Source:	Journal of Theoretical and Applied Information Technology 20 February 2014 -- Vol. 60. No. 2 -- 2014
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Title:	ROBUST IMAGE WATERMARKING SCHEME USING VISUAL CRYPTOGRAPHY IN DUAL-TREE COMPLEX WAVELET DOMAIN
Author:	MERYEM BENYOUSSEF, SAMIRA MABTOUL, MOHAMED EL MARRAKI, DRISS ABOUTAJDINE
Abstract:	This paper, a robust image watermarking scheme for copyright protection based on Dual Tree Complex Wavelet Transform (DT-CWT) and Visual Cryptography concept (VC) is presented. The proposed scheme embeds the watermark without modifying the original host image. In the embedding process, the original image is transformed in the complex wavelet domain then, according to LL sub-band features and VC, a secret share is generated. This later is required to extract the watermark from the attacked image in the extraction process. To improve the clarity of the extracted watermark, a post process called reduction procedure is also proposed. The experimental results show that the proposed method can withstand several image processing attacks such as cropping, filtering and compression etc.
Keywords:	Robust Watermarking, Visual Cryptography, Complex Wavelet Transform, Copyright Protection
Source:	Journal of Theoretical and Applied Information Technology 20 February 2014 -- Vol. 60. No. 2 -- 2014
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Title:	SWITCHING TABLE BASED 2-LEVEL INVERTER AND 3-LEVEL DIODE CLAMPED INVERTER
Author:	R.DHARMAPRAKASH, JOSEPH HENRY
Abstract:	This paper proposes a switching table based 2-level inverter and 3-level diode clamped multilevel inverter (DCMLI) for the purpose of direct torque control of induction motor. The proposed scheme determines the sector of reference vector and the voltage vector is selected from switching table to generate gating signals for the inverter. The 2-level inverter and 3-level DCMLI are used to explain this scheme. This can be extended to n-level inverter and to all major topologies. The performance measures in terms of total harmonic distortion (THD) and fundamental voltage of line voltage and phase voltage are computed and compared with and without filter. The results show that the performance is greatly improved by increasing the number of levels. The significant feature of the proposed scheme is that it can be utilized for direct torque control of induction motor with affecting its simplicity.
Keywords:	2-Level Inverter, 3-Level Inverter, Multilevel Inverter, DCMLI, Direct Torque Control
Source:	Journal of Theoretical and Applied Information Technology 20 February 2014 -- Vol. 60. No. 2 -- 2014
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Title:	AN RFID SIMULATION FOR THE SUPPLY CHAIN MANAGEMENT OF THE UK DENTAL INDUSTRY
Author:	FERNANDO FELIX, RAUL VALVERDE
Abstract:	This paper documents an RFID simulation for the supply chain management in the dental industry in the UK. The paper starts with a preliminary analysis of the UK dental product industry followed by a literature review on topics of IT and Logistics and Technological innovation. A case study from UK dental industry is selected for the study and a supply chain analysis conducted in order to discover the business processes and problems. A proposed solution with RFID technology to the encountered problems is simulated and then compared with the current supply chain system and metrics calculated for comparison and justification of the introduction of the RFID technology.
Keywords:	JIT, Supply Chain Systems, RFID, Dental Industry
Source:	Journal of Theoretical and Applied Information Technology 20 February 2014 -- Vol. 60. No. 2 -- 2014
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Title:	LIGHT POLARIZATION IN AN ANISOTROPIC MEDIUM IN TERMS OF ROTATIONS
Author:	MAJDI T. ORAIQAT, MAHDI A. NISIRAT, VICTOR I. TARKHANOV
Abstract:	Stokes vector evolution in a homogeneous birefringent medium is treated in terms of Cayley-Klein parameters inside 8D space of geometric Clifford algebra. Scaled to unity, Stokes parameters are compared with directional cosines of a unit vector in geometric algebra and with a unit magnetization vector in NMR. The unusual interpretation of Cayley-Klein parameters in matrix optics is regarded as a stimulus to revise 4D entities in geometric algebra.
Keywords:	Polarization, Stokes vector, Mathematical methods in physics, Quantum optics.
Source:	Journal of Theoretical and Applied Information Technology 20 February 2014 -- Vol. 60. No. 2 -- 2014
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Title:	VLSI ARCHITECTURE OF DUAL STANDARD INTERLEAVER FOR TURBO CODES
Author:	BADRINARAYANAN.S, MATHANA.J.M, RANI HEMAMALINI.R
Abstract:	The superior error correcting performance of turbo codes is associated with the suitable interleaver design. The primary function of the interleaver is to improve the distance properties of the concatenated coding schemes and to disperse the sequence of bits in a bit stream so as to minimize the effect of burst errors introduced in the transmission. The key focus of the proposed work is to design an architecture with minimal hardware complexity and maximum reusable interleaver that can support two standards 3GPP WCDMA and 3GPP LTE. The proposed interleaver/ deinterleaver architecture receives an input data stream of any size established by the 3GPP standard and delivers the interleaved or deinterleaved stream depending on the user requirements. Various optimization techniques and novel VLSI architectures are utilized to achieve the proposed hardware interleaver address generation architecture. By introducing the algorithmic level transformations and hardware reuse methodology low complexity reconfigurable architecture is designed. The frequency of operation of the proposed interleaver is 122.46 MHz.
Keywords:	3GPP, Interleaver, Reconfigurable, LTE
Source:	Journal of Theoretical and Applied Information Technology 20 February 2014 -- Vol. 60. No. 2 -- 2014
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Title:	DATA EXCHANGE DELIVERY BETWEEN INFORMATION SYSTEM AT LOW BANDWIDTH QUALITY USING MESSAGING
Author:	I MADE SUKARSA, Ni WAYAN WISSWANI, PUTU WIRABUANA
Abstract:	Data exchange is a routine activity in a distributed system. This activity can be done between organizations with equivalent positions or between branches with the head office. Technology is commonly used web development service as additional middleware. In a growing organization, the effort is quite difficult because it requires a connection with a good quality of bandwidth and dedicated server as a service provider. Therefore, the development of messaging-based middleware can be used as a cheap alternative.In the first year, the study is focused to produce a prototype of a middleware that can work on a machine that is homogeneous DBMS MySQL. In the second year, will develop prototypes that can work in heterogeneous DBMS engine. The resulting prototype in the first year can be used to exchange data between applications by utilizing metadata for each homogeneous DBMS.
Keywords:	Data Integration, Messaging, Low Bandwidth, Distributed System, Data Exchange
Source:	Journal of Theoretical and Applied Information Technology 20 February 2014 -- Vol. 60. No. 2 -- 2014
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Title:	ODIUM PIPERIS FUNGUS IDENTIFICATION FOR PIPER BETEL PLANTS USING DIGITAL IMAGE PROCESSING
Author:	J.VIJAYAKUMAR, S.ARUMUGAM
Abstract:	The betelvine cultivation is very much affected by diseases and outcome of the farmer is big loss for betelvine cultivation. The aim of this paper is to detection of Powdery mildew disease in the betelvine plants using digital image processing techniques. The digital images of the uninfected or normal betelvine leaves and the digital images of the infected in powdery mildew diseased betelvine leaves at different stages are collected from different betelvine plants using a high resolution digital camera and collected betelvine images are stored with JPEG format. The digital image analyses of the leaves are done using the image processing toolbox in MATLAB. The mean values for all sample leaves are computed and calculated mean values are stored in the system. The mean values of test leaves are computed and compared with the stored values. As the result of this comparison, it is identified whether test leaves are affected by powdery mildew disease or not. Finally this analysis helps to recognize the powdery mildew disease can be identified before it spreads to entire crop.
Keywords:	Piperaceae, Powdery Mildew Disease, Betelvine
Source:	Journal of Theoretical and Applied Information Technology 20 February 2014 -- Vol. 60. No. 2 -- 2014
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Title:	MOBILE-ASSISTED INSTRUCTIONAL FOR DOMESTIC MAID (MAID-M)
Author:	TEH PHOEY LEE, GEOFFREY MUCHIRI MUKETHA, GU YIN XIN
Abstract:	Statistics from Immigration Department of Malaysia has shown that the foreign workers have increased tremendously over the past 4 years. Different nationalities of foreign maids usually speak in their own mother languages from their home countries. A certain level of communication barrier between the Malaysia’s employers and the foreign workers were identified in the previous study. The misunderstanding of tasks requested to their domestic maid had led to the communication barrier. The study confirmed positively that this communication barrier has occurred between the employer and the maid. In this paper, the Mobile-Assisted Instructional for Domestic Maid (MAID-M) is proposed and presented both conceptually and physically. Feedbacks of the proposed application is collected and tested.
Keywords:	Mobile Assistant, Mobile Development and Mobile Application.
Source:	Journal of Theoretical and Applied Information Technology 20 February 2014 -- Vol. 60. No. 2 -- 2014
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Title:	A HYBRID INDEXED TABLE AND QUASIGROUP ENCRYPTION APPROACH FOR CODE SECURITY AGAINST VARIOUS SOFTWARE THREATS
Author:	Dr.N. SASIREKHA, Dr. M.HEMALATHA
Abstract:	Security is of fundamental importance in digital communication. The system should be secure against brute force attacks and impersonation by the eavesdropper. Code and the sensitive data should only be accessed and understood by legitimate user/authority. Software in recent scenario has been highly susceptible to various attacks and threats. Reverse engineering is one of the key technique by which an intruder can understand the inner working of the software. Most of the existing software protection techniques do not provide reliable security against various attacks. Cryptographic approaches are observed to be very efficient in providing security and authentication to the software. Encryption of the code in the software has received much attention in the software engineering domain and various researches are being done in that area. This paper proposes a novel hybrid software protection code encryption scheme based on the index table. This approach uses a novel and efficient encryption technique for encryption the indexed table. The encryption technique used is the quasigroup approach which provides least resemblance of the original data when encrypted. The performance of the proposed approach is evaluated based on the time cost and space cost and it is observed that the proposed approach provides significant results and performance.
Keywords:	Cryptography, Decryption,Encryption, Quasigroup, Index Table, Reverse Engineering, Software Protection.
Source:	Journal of Theoretical and Applied Information Technology 20 February 2014 -- Vol. 60. No. 2 -- 2014
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