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29,325 Article Results

Pursuit Algorithm for Robot Trash Can Based on Fuzzy-Cell Decomposition

10.11591/ijece.v6i6.pp2863-2869
Tatiya Padang Tunggal , Andi Supriyanto , Nur Mukhammad Zaidatur Rochman , Ibnu Faishal , Imam Pambudi , Iswanto Iswanto
Scooby Smart Trash can is a trash can equipped with artificial intelligence algorithms that is able to capture and clean up garbages thrown by people who do not care about the environment. The can is called smart because it acts like scoobydoo in a children's cartoon in that the can will react if there is garbage thrown and it catches and cleans them up. This paper presents pursuit algorithm that uses cell decomposition algorithm in which algorithms are used to create a map of the robot's path and fuzzy algorithm as one of the artificial intelligence algorithm for robot path planning. By using the combined algorithms, the robot is able to pursuit and chases the trash carelessly discarded, but it has not been able to find the shortest distance. Therefore, this paper considers a second modification of the algorithm by adding a potential field algorithm used to add weight values on the map, so that the robot can pursue trash by finding the shortest path. The proposed algorithm shows that the robot can avoid obstacles and find the shortest path so that the time required to get to the destination point is fast.
Volume: 6
Issue: 6
Page: 2863-2869
Publish at: 2016-12-01

A Cloud Based Secure Voting System using Homomorphic Encryption for Android Platform

10.11591/ijece.v6i6.pp2994-3000
Manish Ranjan , Ayub Hussain Mondal , Monjul Saikia
Cloud based service provider are at its top of its services for various applications, as their services are very much reachable from anywhere anytime in current days. It is responsibility of the company that the Cloud storage is owned and maintained by themselves keeping the data available and accessible, and the physical environment protected and running. Could storage provider seem to be uncertain of confidentiality in many cases, as we need to limit ourselves on trust to a third party. Keeping our sensitive data ready to access any time anywhere with preventing any information leakage is a challenging task. Cryptography in this scenario plays an important role, providing security for information to protect valuable information resources on intranets, Internet and the cloud. In addition, Homomorphic cryptosystem is a form of Cryptography where some specific computation can be performed over the cipher text producing a resultant cipher text which, when decrypted, equals the result of operations carry out on the plaintext. With help of this unique property of homomorphism cryptography we proposed a system to keep sensitive information in encrypted form in the cloud storage/service provider and used those data as whenever we require. The scheme proposed here is designed for a secure online voting system on Android platform and voted information is encrypted and stored those in the cloud.
Volume: 6
Issue: 6
Page: 2994-3000
Publish at: 2016-12-01

A Comparative Study of Power Semiconductor Devices for Industrial PWM Inverters

10.11591/ijpeds.v7.i4.pp1420-1428
Gianluca Sena , Roberto Marani , Gennaro Gelao , Anna Gina Perri
The growing demand of energy translates into efficiency requirements of energy conversion systems and electric drives. Both these systems are based on Pulse Width Modulation (PWM) Inverter. In this paper we firstly present the state of art of the main types of semiconductors devices for Industrial PWM Inverter. In particular we examine the last generations of Silicon Carbide (SiC) MOSFETs and Insulated Gate Bipolar Transistors (IGBTs) and we present a comparison between these devices, obtained by SPICE simulations, both for static characteristics at different temperatures and for dynamic ones at different gate resistance, in order to identify the one which makes the PWM inverter more efficient.
Volume: 7
Issue: 4
Page: 1420-1428
Publish at: 2016-12-01

Reducing Routing Overhead in Random Walk Protocol under MP2P Network

10.11591/ijece.v6i6.pp3121-3130
Ajay Arunachalam , Ohm Sornil
Due to network dynamics in self-organizing networks the resource discovery effort increases. To discover objects in unstructured peer-to-peer network, peers rely on traditional methods like flooding, random walk and probabilistic forwarding methods. With inadequate knowledge of paths, the peers have to flood the query message which creates incredible network traffic and overhead. Many of the previous works based on random walk were done in wired network. In this context random walk was better than flooding. But under MANETs random walk approach behaved differently increasing the overhead, due to frequent link failures incurred by mobility. Decentralized applications based on peer-to-peer computing are best candidates to run over such dynamic network. Issues of P2P service discovery in wired networks have been well addressed in several earlier works. This article evaluates the performance of random walk based resource discovery protocol over P2P Mobile Adhoc Network (MP2P) and suggests an improved scheme to suit MANET. Our version reduces the network overhead, lowers the battery power consumption, minimizes the query delay while providing equally good success rate. The protocol is validated through extensive NS-2 simulations. It is clear from the results that our proposed scheme is an alternative to the existing ones for such highly dynamic mobile network scenario.
Volume: 6
Issue: 6
Page: 3121-3130
Publish at: 2016-12-01

Battery-equivalent DC Supply from Leakage Current: PV to Transformer-less Inverter Topology

10.11591/ijpeds.v7.i4.pp1193-1199
M. N. H. Khan , K. J. Ahmad , M. S. Zahan , M. N. Hasan
Solar panels are highly used for electricity generation, which can be gotten through switching-based transformer-less inverters. Hence, grid system with no galvanic-isolation, is taking the peak level in the world, which is effective and delivers power with enhanced efficiency. The PV generation presented here is for stand-alone system installed in remote areas on when and as the resulting power gets connected to electronic load installation instead of being tied to the grid. In this paper will be discussed the use of leakage current. Transformer-less inverter topology for exploring the issue of common mode (CMV) voltage development, which can be utilized as a Battery-Equivalent DC Supply after adding on places as when found suitable for such installations.
Volume: 7
Issue: 4
Page: 1193-1199
Publish at: 2016-12-01

Modelling and Predicting of the Characteristics of a Photovoltaic Generator on a Horizontal and Tilted Surface

10.11591/ijece.v6i6.pp2557-2576
Mustapha Elyaqouti , Lahoussine Bouhouch , Ahmed Ihlal
In the present paper, we will attempt to predict the Ipv-Vpv output characteristic of a photovoltaic generator (PVG) and consequently the generated electric power. This will be possible through modeling, extracting the electrical parameters of the PVG under study and also, by estimating the global incident solar radiation, on a surface, first horizontally, and then tilted to a given angle. Mathematical models developed in Matlab, to characterize the studied PVG are validated by experimental data of the PVG manufacture. While models associated with global radiation are validated by measurements taken by the meteorological station installed on the laboratory site ERTAIER (Team for Research in Technology and Advanced Engineering of Renewable Energies) of Higher School of Technology Agadir (ESTA). 
Volume: 6
Issue: 6
Page: 2557-2576
Publish at: 2016-12-01

Minimization of Starting Energy Loss of Three Phase Induction Motors based on Particle Swarm Optimization and Neuro Fuzzy Network

10.11591/ijpeds.v7.i4.pp1038-1048
Mahmoud M. Elkholy , Mohamed A. Elhameed
The purpose of this paper is to minimize energy losses consumed by the induction motor during starting with wide range of load torque from no load to full load. This will limit the temperature rise and allows for more numbers of starting during a definite time. Starting energy losses minimization is achieved by controlling the rate of increasing voltage and frequency to start induction motor under certain load torque within a definite starting time. Optimal voltage and frequency are obtained by particle swarm optimization (PSO) tool according to load torque. Then, outputs of the PSO are used to design a neuro-fuzzy controller to control the output voltage and frequency of the inverter during starting for each load torque. The starting characteristics using proposed method are compared to starting characteristics using direct on line method and V/F method. A complete model of the system is developed using SIMULINK/MATLAB.
Volume: 7
Issue: 4
Page: 1038-1048
Publish at: 2016-12-01

Effective Computer-Assisted Automatic Cervical Vertebrae Extraction with Rehabilitative Ultrasound Imaging by using K-means Clustering

10.11591/ijece.v6i6.pp2810-2817
Hae-Jung Lee , Doo Heon Song , Kwang Baek Kim
Neck pain is one of most common musculoskeletal condition resulting in significant clinical, social and economic costs. Muscles around cervical spine including deep neck flexors play a key role to support and control its stability, thus monitoring such muscles near cervical vertebrae is important. In this paper, we propose a fully automated computer assisted method to detect cervical vertebrae with K-means pixel clustering from ultrasonography. The method also applies a series of image processing algorithms to remove unnecessary organs and noises in the process. The experiment verifies that our approach is consistent with human medical experts’ decision to locate key measuring point for muscle analysis and successful in detecting cervical vertebrae accurately – successful in 48 out of 50 test cases (96%).
Volume: 6
Issue: 6
Page: 2810-2817
Publish at: 2016-12-01

An Approach to Voltage Quality Enhancement by Introduction of CWVM for Distribution System

10.11591/ijpeds.v7.i4.pp1276-1282
Alok Kumar Shrivastav , Pradip Kumar Sadhu , Ankur Ganguly , Saumen Dhara
This paper presented with problems related with voltage flicker in power system networks. Several international standard issued to control the voltage flicker are briefly described and some important methods to analyse electrical circuits with sinusoidal and non-sinusoidal waveforms are introduced and evaluated. One of these methods – Cockcroft Walton Voltage Multiplier (CWVM) has been used to increase the voltage of a filter, which is also described in this paper as a practical application. The filter can compensate for harmonic currents, power factor, and unbalance voltage. The simulation results using Multisim are presented, showing that good dynamic and steady-state response can be achieved with this approach.
Volume: 7
Issue: 4
Page: 1276-1282
Publish at: 2016-12-01

Performance Enhancement of TCP Friendly Rate Control Protocol over Wired networks

10.11591/ijece.v6i6.pp2949-2954
N. Ramanjaneya Reddy , Chenna Reddy Pakanati , M. Padmavathamma
One of the main aims of transport layer protocol is achieving best throughput without any congestion or reduced congestion.  With rapid growing application needs and with increasing number of networks in Internet, there is a primary need to design new protocols to transport layer.  To transmit multimedia applications, one of the suitable congestion control mechanisms in transport layer is TCP Friendly Rate Control Protocol (TFRC).  It controls congestion based on its equation. However, every packet requires an acknowledgement in TFRC. It creates congestion in the network when the transmitted data is very large, which results in reduced throughput. This paper aims to increase the throughput when the transmitted data is large with minimal congestion by reducing the number of acknowledgements in the network.  We modified some fixed parameters in the TFRC equation. The results show the increased throughput with minimal congestion.
Volume: 6
Issue: 6
Page: 2949-2954
Publish at: 2016-12-01

A Model Driven Approach based on Interaction Flow Modeling Language to Generate Rich Internet Applications

10.11591/ijece.v6i6.pp3073-3079
Sarra Roubi , Mohammed Erramdani , Samir Mbarki
A Rich Internet Applications (RIAs) combine the simplicity of the hypertext paradigm with the flexibility of desktop interfaces. These appliations were proposed as a solution to follow the rapid growth and evolution of the Graphical User Interfaces. However, RIAs are complex applications and their development requires designing and implementation which are time-consuming and the available tools are specialized in manual design. In this paper, we present a model driven approach to generat GUI for Rich Internet Application. The approach exploits the new language IFML recently adopted by the Object Management Group. We used frameworks and technologies known to Model-Driven Engineering, such as Eclipse Modeling Framework (EMF) for Meta-modeling, Query View Transformation (QVT) for model transformations and Acceleo for code generation. The approach allows to quickly and efficiently generating a RIA focusing on the graphical aspect of the application.
Volume: 6
Issue: 6
Page: 3073-3079
Publish at: 2016-12-01

Modelling of a 3-phase Induction Motor under Open-phase Fault Using Matlab/Simulink

10.11591/ijpeds.v7.i4.pp1146-1152
Mohammad Jannati , Tole Sutikno
The d-q model of Induction Motors (IMs) has been effectively used as an efficient method to analyze the performance of the induction machines. This study presents a step by step Matlab/Simulink implementation of a star-connected 3-phase IM under open-phase fault (faulty 3-phase IM) using d-q model. The presented technique in this paper can be simply implemented in one block and can be made available for control purposes. The simulated results provide to show the behavior of the star-connected 3-phase IM under open-phase fault condition.
Volume: 7
Issue: 4
Page: 1146-1152
Publish at: 2016-12-01

A General Method to Parameter Optimization for Highly Efficient Wireless Power Transfer

10.11591/ijece.v6i6.pp3217-3221
Kazuya Yamaguchi , Takuya Hirata , Ichijo Hodaka
This paper proposes a new and general method to optimize a working frequency and a load resistance in order to realize highly efficient wireless power transfer. It should be noticed that neither resonant frequency nor matched impedance maximizes efficiency of wireless power transfer circuit, in general. This paper establishes a mathematical model of a commonly used wireless power transfer circuit, and derives a mathematical expression of circuit efficiency which involves a working frequency, a load resistance and the other parameters as symbols. This enables us to find the optimal workingfrequency and load resistance. The result of this paper is compared with results by a method based on resonance and impedance matching, and then clarified by a numerical example.
Volume: 6
Issue: 6
Page: 3217-3221
Publish at: 2016-12-01

Microarray Image Analysis Using Genetic Algorithm

10.11591/ijeecs.v4.i3.pp561-567
Bolem Sivalakshmi , N. Naga Malleswara Rao
Microarray technology allows the simultaneous monitoring of thousands of genes. Based on the gene expression measurements, microarray technology have proven powerful in gene expression profiling for discovering new types of diseases and for predicting the type of a disease. Gridding, segmentation and intensity extraction are the three important steps in microarray image analysis. This paper presents microarray image analysis using Genetic Algorithm. A new algorithm for microarray image contrast enhancement is presented using Genetic Algorithm. Contrast enhancement is crucial step in extracting edge information in image and finally this edge information is used in gridding of microarray image. Mostly segmentation of microarray image is carried out using clustering algorithms. Clustering algorithms have an advantage that they are not restricted to a particular shape and size for the spots. In this paper, segmentation using Genetic Algorithm by optimizing K-means index and Jm measure is presented. The qualitative analysis shows that the proposed method achieves better segmentation results than K-means and FCM algorithms.
Volume: 4
Issue: 3
Page: 561-567
Publish at: 2016-12-01

Analytical Estimation of the Electrostatic Field in Cylinder-Plane and Cylinder-Cylinder Electrode Configurations

10.11591/ijece.v6i6.pp2506-2515
Emmanouil D. Fylladitakis , Antonios X. Moronis , Michael Theodoridis
This work presents analytical formulas for the estimation of the electrostatic field in cylinder-plane and cylinder-cylinder electrode configurations. Assuming a predefined potential difference between the electrodes and given their geometrical characteristics, these could be useful for the solution of numerous problems involving such electrode sets. Moreover, the voltage distribution around the electrodes is defined by providing equations either for the equipotentials at a given voltage ratio, or the exact estimation of the potential at any point in the surrounding space. Simplified expressions for critical engineering parameters such as the peak electric field and the field enhancement factor are also given.
Volume: 6
Issue: 6
Page: 2506-2515
Publish at: 2016-12-01
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