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INDONESIA
Indonesian Journal of Electrical Engineering and Computer Science
Published by Institute of Advanced Engineering and Science
ISSN : 25024752     EISSN : 25024760     DOI : -
Core Subject :
Arjuna Subject : -
Articles 59 Documents
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Search results for , issue "Vol 12, No 10: October 2014" : 59 Documents clear
A Coal Mine Security Production Dispatching System with Web Configuration Technology Hui Liu; Qiu Junlin; Zhou Caiying; Shi Zhe
Indonesian Journal of Electrical Engineering and Computer Science Vol 12, No 10: October 2014
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijeecs.v12.i10.pp7070-7075

Abstract

Coal mine security production dispatching system with web configuration technology is an advanced information system that integrates Internet, Database, XML and Web configuration technology. The system combines organically information of real-time data of coal mine safety monitoring and production scheduling, and digitizes it and finally discloses solution Visual Graph via ActiveX-based components of Web configuration to achieve standardization, normalization, and high efficiency of coal mine safety production scheduling. This system has been successfully utilized in coal mine for two years and achieved expected success of providing fresh, quantitative, and truthful production scheduling information for safety production scheduling and management department.
Indirect Flux-Oriented Control of Faulty Single-Phase Induction Motors M. Jannati; N. R. N. Idris; M. J. A. Aziz
Indonesian Journal of Electrical Engineering and Computer Science Vol 12, No 10: October 2014
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijeecs.v12.i10.pp7167-7175

Abstract

Most types of electrical machines such as Induction Motors (IMs) can be modeled by an equivalent 2-phase machine (d-q model). For instance a single-phase IM with two main and auxiliary windings can be modeled as an equivalent 2-phase IM. Also a faulty single-phase IM (single-phase IM under open-phase fault) can be modeled as an unbalanced 2-phase IM. This study confirms this concept by modeling a single-phase IM with one of its stator phases, open. In addition the study shows that the vector control of this faulty IM can be performed by some modifications in the vector control of healthy IM (the proposed vector control in this paper is based on Indirect Flux-Oriented Control (IFOC)). MATLAB simulation results show the good performance of the proposed technique.
Land Surface Temperature Retrieval from the Medium Resolution Spectral Imager (MERSI) Thermal Data Hailei Liu; Shenglan Zhang
Indonesian Journal of Electrical Engineering and Computer Science Vol 12, No 10: October 2014
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijeecs.v12.i10.pp7287-7298

Abstract

A single channel land surface temperature (LST) retrieval algorithm named Single Channel Water Vapor Dependent (SCWVD) method was presented for Medium Resolution Spectral Imager (MERSI) thermal infrared band aboard FengYun-3A (FY-3A) satellite. Water Vapor Content (WVC) is the only input parameter in the algorithm assuming the surface emissivity is known. NCEP reanalysis monthly mean datasets are used to develop the SCWVD algorithm. Some tests, including global numerical simulations and validations with both in-situ measurements and MODIS LST product at Lake Tahoe, USA, were carried out to evaluate the algorithm performance. Compared with NCEP data and U.S. standard mid-latitude summer atmosphere model, the retrieved LST from simulated MERSI brightness temperature with MODTRAN had a RMSE about 0.8 K. In the validation, MERSI Level 2 water vapor product was employed, and the MERSI band emissivity was evaluated using the MODIS band 31 and 32 emissivity with an empirical expression. The results show that the difference between the retrieved MERSI LST and the in-situ measurements is less than 1 K in most situations. The comparison with the MODIS LST products (V5) shows that the RMSE is about 2.3 K.
Single-Event-Upset Mitigation Placement and Routing Algorithms for Field-Programmable Gate Arrays Ren Xiaoxi; Wu Chu; Ding Yu
Indonesian Journal of Electrical Engineering and Computer Science Vol 12, No 10: October 2014
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijeecs.v12.i10.pp7422-7429

Abstract

To reduce the effects of single-event upsets (SEUs) on field-programmable gate arrays (FPGAs), we propose anti-VPR, an anti-SEU algorithm. The Anti-VPR algorithm is based on VPR, a popular placement and routing tool. The proposed algorithm optimizes the FPGA place cost function and reduces the occurrence of errors, such as open circuit error and short circuit error, by computing the error propagation probability and node error rate of the Configurable Logic Blocks. The Anti-VPR algorithm is implemented and tested on several MCNC benchmark circuits. Experimental results show that the proposed Anti-VPR algorithm achieves a 36.2% greater reduction of sensitive bits compared with the original VPR algorithm without the need for extra hardware overhead, unlike the traditional TMR approach.
Optimal Design of a 3-Phase Core Type Distribution Transformer Using Modified Hooke and Jeeves Method Raju Basak; Arabinda Das; Amarnath Sanyal
Indonesian Journal of Electrical Engineering and Computer Science Vol 12, No 10: October 2014
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijeecs.v12.i10.pp7114-7122

Abstract

Hooke and Jeeves method is de facto a pattern search technique, which can be employed for getting an optimal solution. In this paper the method, in a modified form, has been applied for the design optimization of a distribution transformer. It is a constrained multi-variable optimization problem. The solution is obtained by choosing an initial point in the world map of the key variables and by making a local search (exploratory in all directions in the hyper surface formed by the variables. After recognizing the pattern, its advantage is taken by moving towards a lower cost point, using an acceleration factor for faster convergence. The step length is adjusted as we proceed to expedite improvement. The method has been applied to two different cost functions: the cost of production and the cost against production plus capitalized running losses. In both the cases, the problem has converged to a solution and the results are both interesting and illuminating.
Generation & Analysis of Harmonic for Various Combinations of Non-linear Load Subhabrata Mukherjee; Kunal Chakraborty; Dipak Kumar Datta
Indonesian Journal of Electrical Engineering and Computer Science Vol 12, No 10: October 2014
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijeecs.v12.i10.pp7249-7252

Abstract

This paper refers to a comparative study of the harmonics generated by non-linear loads like compact fluorescent lamps (CFL). This work is carried out by measuring the frequency across the supply line by using CFL along with a resistive load. Here CF lamps are used as they are non-linear loads and generate frequencies of very high value. We have used three cfl lamps of different ratings such as 5, 14t and 20watt.
Anti-Occlusion Algorithm for Object Tracking Based On Multi-Feature Fusion Jie Cao; Liang Xuan
Indonesian Journal of Electrical Engineering and Computer Science Vol 12, No 10: October 2014
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijeecs.v12.i10.pp7381-7388

Abstract

Complex background, especially when the object is similar to the background in color or the target get blocked, can easily lead to tracking failure. Therefore, a fusion algorithm based on features confidence and similarity was proposed, it can adaptively adjust fusion strategy when occlusion occurs. And this confidence is used among occlusion detection, to overcome the problem of inaccurate occlusion determination when blocked by analogue. The experimental results show that the proposed algorithm is more robust in the case of the cover，but also has good performance under other complex scenes.
Graph Kernels and Applications in Protein Classification Jiang Qiangrong; Xiong Zhikang; Zhai Can
Indonesian Journal of Electrical Engineering and Computer Science Vol 12, No 10: October 2014
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijeecs.v12.i10.pp7501-7508

Abstract

Protein classification is a well established research field concerned with the discovery of molecule’s properties through informa­tional techniques. Graph-based kernels provide a nice framework combining machine learning techniques with graph theory. In this paper we introduce a novel graph kernel method for an­notating functional residues in protein structures. A structure­ is first modeled as a protein contact graph, where nodes ­corres­pond to residues and edges connect spatially neighboring resi­dues. In experiments on classification of graph models of proteins, the method based on Weisfeiler-Lehman shortest path kernel with complement graphs outperformed other state-of-art methods.
Theoretical Modeling of a Magnetic Loop Antenna for Ultra wide band Application Moses Emetere
Indonesian Journal of Electrical Engineering and Computer Science Vol 12, No 10: October 2014
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijeecs.v12.i10.pp7076-7081

Abstract

The functionality of an improved magnetic loop antenna (MLA) is a prominent research which has span almost three decades. Its shape and size had metaphorsize from the usual analogue to a digital device-which is now used for experiments in space. In this paper, the application of MLA for ultra wide band (UWB) design was proposed. A new concept was introduced -angular displacement theory which was used to mitigate fading in multipath propagation
Design and Analysis Gires-Tournois-Interferometer Mirrors Amer B.Dheyab; Gaillan H. Abdullah; Haider Y. Hammod; Ali Hassan
Indonesian Journal of Electrical Engineering and Computer Science Vol 12, No 10: October 2014
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijeecs.v12.i10.pp7209-7213

Abstract

We report the implementation and operation of GTI with high-reflectivity negative-dispersion dielectric mirrors for use in tunable ultrafast laser systems. The mirror structure is divided into two distinct regions: an underlying high-reflectivity dielectric quarter-wavelength stack and an overlying negative-dispersion section consisting of only a few layers and forming simple multiple Gires–Tournois interferometers. The example that we present was designed two structures with different spacers for operation from 670-860 nmand680-840nm has a near-constant group-delay dispersion of ±3000fs2and a peak reflectivity greater than 98%. We can usingand application of these mirrors in a mode-locked Ti: Sapphire laser.

Page 5 of 6 | Total Record : 59

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