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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 80 Documents
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Search results for , issue "Vol 11, No 5: May 2013" : 80 Documents clear
Quantum State Sharing of An Arbitrary Three-qubit State Using Two Four-qubit Cluster States Ting Zhang; Xiu-Li Tu; Xian-Ming Wang; Xin-Wei Zha
Indonesian Journal of Electrical Engineering and Computer Science Vol 11, No 5: May 2013
Publisher : Institute of Advanced Engineering and Science

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Abstract

A scheme of quantum state sharing(QSTS) an arbitrary three-qubit state is presented using two particular four-qubit cluster state as the quantum channel. With four Bell pairs state measurements and the local unitary operation, any one of the two agents has the access to reconstruct the original if he/she collaborates with the other one. DOI: http://dx.doi.org/10.11591/telkomnika.v11i5.2566
Study on Fisher Analysis of Electroencephalograph Data Yuan Shi; Qi Wei; Ruijie Liu; Yuli Ge
Indonesian Journal of Electrical Engineering and Computer Science Vol 11, No 5: May 2013
Publisher : Institute of Advanced Engineering and Science

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Abstract

Objective In this paper, we have done Fisher discriminant analysis to Electroencephalogram (EEG) data of experiment objects which are recorded impersonally, come up with a relatively accurate method used in feature extraction and classification decisions. The present study is the groundwork analysis for other analysis in EEG study. Methods In accordance with the strength of  wave, the head electrodes are divided into four species. In use of part of 21 electrodes EEG data of 63 people, we have done Fisher discriminant analysis to EEG data of six objects. EEG data processing and statistic analysis adopted independently designed EEG analysis toolbox and the program of correlation analysis. Results In use of part of EEG data of 63 people, we have done Fisher discriminant analysis, the electrode classification accuracy rates is 82.3%. Conclusions Fisher discriminant has higher prediction accuracy, EEG features (mainly  wave) extract more accurate. Fisher discriminant would be better applied to the feature extraction and classification decisions of EEG data. DOI: http://dx.doi.org/10.11591/telkomnika.v11i5.2464
Magnetoelectric Speed Sensor to Detect Ultra-Low Frequency Vibrations Dong Ke; Qian Yuxia; Yuan Zhangyi
Indonesian Journal of Electrical Engineering and Computer Science Vol 11, No 5: May 2013
Publisher : Institute of Advanced Engineering and Science

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Abstract

Ultra-low frequency vibrations are ordinary physical phenomena, and absolute vibrant sensors are usually used to detect them. The author presents a method that using magnetoelectric speed sensor to detect ultra-low frequency vibrations. With cascade correcting circuit, the lowest frequency that can be measured will be less than 0.5Hz while the best damping is maintained. The author has systematically analyzed the correcting circuit, transfer function, theory of operation, and the difference between output characteristics before and after correcting to the ultra-low frequency sensor. DOI: http://dx.doi.org/10.11591/telkomnika.v11i5.2480
Differential Protection for Distributed Micro-Grid Based on Agent ZHOU Bin; YING Li-ming; ZHU Yonggang
Indonesian Journal of Electrical Engineering and Computer Science Vol 11, No 5: May 2013
Publisher : Institute of Advanced Engineering and Science

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Abstract

The Micro-grid, even though not a replacement of the conventional centralized power transmission grid, plays a very important role in the success of rapid development of renewable energy resources technologies. Due to the facts of decentralization, independence and dynamic of sources within a Micro-grid, a high level automation of protection is a must. Multi-Agent system as a approach to handle distributed system issues has been developed. This paper presents an MAS based differential protection method for distributed micro-grid. The nodes within a micro-grid are divided into primary and backup protection zones. The agents follow predefined rules to take actions to protect the system and isolate the fault when it happens. Furthermore, an algorithm is proposed to achieve high availability in case of Agent itself malfunction. The method is using Matlab for simulation and shows it satisfies relay protection in terms of the selectivity, sensitivity, rapidity and reliability requirements. DOI: http://dx.doi.org/10.11591/telkomnika.v11i5.2497
Competitiveness Comparative Research on Jiaozuo Service Industry Based on Synchronic and Diachronic Data XU Jun
Indonesian Journal of Electrical Engineering and Computer Science Vol 11, No 5: May 2013
Publisher : Institute of Advanced Engineering and Science

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Abstract

Service industry plays a more and more important role in economic development, it had become an important symbol for the enhancement of one region competitiveness. The paper constructed the Jiaozuo service competitive evaluation model, which used 2004-2011 years sequence data of Jiaozuo and synchronic data of Zhengzhou, Kaifeng, Luoyang, Xinxiang, Jiaozuo five cities, based on the DEA method, designed input index including employees and fixed assets, designed output index including service industry output value and growth rate, then it solved the answer with LINGO8.0 linear programming software. Model could not only evaluate sequence change on development of service industry competitiveness for eight years in Jiaozuo, but also did a horizontal section comparison with Zhengzhou, Kaifeng, Luoyang, Xinxiang four Cities. Model operation results showed that Jiaozuo service industry appeared to be on the mend but unstable situation on the overall effectiveness according to the longitudinal input and output, the horizontal section comparing showed that it had slightly shortage than Zhengzhou, Kaifeng city, it was in a horizontal line with Xinxiang, Luoyang, but the total amount was insufficient, it was totally in accord with the actual situation in Jiaozuo service industry development. Finally, it proposed the countermeasure and suggestion from Jiaozuo important development industries, service industry development policy and talent training. DOI: http://dx.doi.org/10.11591/telkomnika.v11i5.2514
A Fuzzy Self-tuning Controlled Feeding Servo System of Machine Tool Yueshan Wang; Liwan Chen; Zenghan Chen
Indonesian Journal of Electrical Engineering and Computer Science Vol 11, No 5: May 2013
Publisher : Institute of Advanced Engineering and Science

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Abstract

The permanent magnet synchronous motor(PMSM) has been used widely for computer numerically controlled (CNC) feeding servo system (FSS) of machine tools. The control performance of the actual CNC-FSS depends on many parameters, and it has the properties of nonlinear uncertainty and time-varying characteristics. It is difficult to establish an accurate model for the actual CNC-FSS, therefore, a fuzzy self-tuning controller (FSC) of CNC-FSS was developed to overcome this problem in this paper. The proposed control strategy was based on fuzzy control theory combined with the conventional proportion integration differentiation (PID) control and its control algorithm. In this paper, we presented design of controller using FSC method and analyzed time response of the intelligent controller. Step response was plotted and analyzed to verify the effectiveness of the proposed controllers. Simulation results show that the FSC has minimum overshoot, minimum transient and steady state parameters, which shows the more effectiveness and efficiency of FSC than conventional PID controller to control the position of the CNC-FSS. DOI: http://dx.doi.org/10.11591/telkomnika.v11i5.2459
Research on Surface Mounting Technology of Micromechanical Silicon Resonant Accelerometer Libin Huang; Yang Gao
Indonesian Journal of Electrical Engineering and Computer Science Vol 11, No 5: May 2013
Publisher : Institute of Advanced Engineering and Science

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Abstract

Surface mounting technology is a key process in MEMS packaging. The finite element model of package structures was established in this paper according to the designed micromechanical silicon resonant accelerometer. The effects of package substrate materials, adhesive material characteristics, uneven adhesive thickness, and adhesive defects on the micromechanical silicon resonant accelerometer were analyzed with ANSYS software. Results showed that the package substrate material strongly affected the resonance frequency of the resonator after the application of surface mounting technology. The Young’s modulus and thermal expansion coefficient of adhesives were found to be important factors that affect chip thermal stress and warpage. Uneven adhesive thickness and adhesive defects also affect the resonance frequency of the resonator. DOI: http://dx.doi.org/10.11591/telkomnika.v11i5.2475
Reliability and Security Analysis on Two-Cell Dynamic Redundant System Hongsheng Su
Indonesian Journal of Electrical Engineering and Computer Science Vol 11, No 5: May 2013
Publisher : Institute of Advanced Engineering and Science

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Abstract

Based on analysis on reliability and security on three types of two-cell dynamic redundant systems which has been widely applied in modern railway signal system, whose isomorphic Markov model was established in this paper. During modeling several important factors, including common-cause failure, coverage of diagnostic systems, online maintainability, and periodic inspection maintenance, and as well as many failure modes, were considered, which made the established model more credible. Through analysis and calculation on reliability and security indexes of the three types of two-module dynamic redundant structures, the paper acquires a significant conclusion, i.e., the safety and reliability of the kind of structure possesses an upper limit, and can not be inordinately improved through the hardware and software comparison methods under the failure and repairing rate fixed. Finally, the paper performs the simulation investigations, and compares the calculation results of the three redundant systems, and analysis each advantages and disadvantages, and gives out each application scope, which provides a theoretical technical support for the railway signal equipments selection. DOI: http://dx.doi.org/10.11591/telkomnika.v11i5.2492
Development of Mobile Dua and Zikr for Hajj (MDZ4H) Ahmed Sheikh Abdullah Al-Aidaroos; Abdul Nasir Zulkifli; Ruzinoor Che Mat
Indonesian Journal of Electrical Engineering and Computer Science Vol 11, No 5: May 2013
Publisher : Institute of Advanced Engineering and Science

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Abstract

In the last decade, the number of mobile phone users has increased dramatically. Nowadays, mobile phone has become part of people’s life. Today’s mobile phones provide not just voice call and messaging services, but plethora of other services. This research is about the utilization of mobile phone for dua and zikr for Hajj. The main aim of this research is to develop a mobile Dua and Zikr application to help Hajj pilgrims to recite them while performing all the Hajj, Umrah and Ziarah rituals. At the moment, this research focuses on developing the application on Android platform. In developing the application, all the required Dua and Zikr have to be gathered, compiled and verified before the prototype could be developed using J2ME. The prototype consists of text and audio files of the recited Dua and Zikr in Arabic as well as the translations in Malay. The prototype has been proven to be useful in helping the pilgrims to easily and conveniently recite the Dua and Zikr towards achieving Hajj Mabrur. DOI: http://dx.doi.org/10.11591/telkomnika.v11i5.2509
Research on Mining Development in Yunnan under Ecological Environment Compensation Jianqun Xiang; Yunzhong Liu; Dan Dong; Meng Zhang
Indonesian Journal of Electrical Engineering and Computer Science Vol 11, No 5: May 2013
Publisher : Institute of Advanced Engineering and Science

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Abstract

Yunnan province is rich of mineral resources, and the mining industry is the pillar industry in Yunnan. But with the development of mining economy, the problems of the ecological environmental damage have come out. Under the mechanism of ecological environment compensation, the mining economic development in Yunnan needs to deal well with the problems of environmental protection. According to the natural ecological conditions of mining area in Yunnan Province, and combining with the phenomena on economic, social, and environmental development, the paper will analyze the impact on ecological environment in Yunnan in the process of mineral exploitation and utilization. It will also provide the mining development and environmental protection in Yunnan with reasonable proposal and give decision-making references about development plans for government. DOI: http://dx.doi.org/10.11591/telkomnika.v11i5.2561

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