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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 :
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Articles 102 Documents
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Search results for , issue "Vol 12, No 4: April 2014" : 102 Documents clear
Optimal Decision-making on Charging of Electric Vehicles Xin Gong; Tao Lin
Indonesian Journal of Electrical Engineering and Computer Science Vol 12, No 4: April 2014
Publisher : Institute of Advanced Engineering and Science

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Abstract

Large-scale development of electric vehicles (EVs) will have a significant impact on the power grid with their great demand for electric power consumption. It is necessary to design the optimal charging scheme for EVs. In this paper, we propose a centralized and a decentralized scheme of optimal decision-making on charging of EVs based on a dynamic pricing model. The objective of both schemes is to minimize the costs of EVs by establishing EV charging optimal schedules that fills the overnight load valley.The centralized scheme,whose objective is to minimize the total charging costs of all EVs, determines the charging schedules of EVs through solving a global optimization problem by the utility.The decentralized scheme is based on congestion game theory,under which the charging schedules are determined locally and directly by EVs to minimize their own costs. Detailed mathematical models and solution procedures are presented for both the centralized and decentralized schemes. Results show that both schemes have good performance on valley-filling. DOI : http://dx.doi.org/10.11591/telkomnika.v12i4.4098
A novel balanced scorecard design based on fuzzy analytic network process and its application Yuhong Cao; You Jianxin
Indonesian Journal of Electrical Engineering and Computer Science Vol 12, No 4: April 2014
Publisher : Institute of Advanced Engineering and Science

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Abstract

In this paper, wepropose a novel balanced scorecard design based on fuzzy analytic networkprocess and then conduct performance evaluation through a case study. Afteranalyzing the related works about balanced scorecard design and the algorithmof fuzzy analytic network process, we illustrate the improved balancedscorecard design. Firstly, the basic concepts for the balanced scorecardsare introduced. Secondly, four perspectives of the balanced scorecards design are provided.Thirdly, the method to promote the performance of balanced scorecard designthrough the fuzzy analytic network process is demonstrated. In the proposeddesign, a fuzzy number is represented by the left and right formation of eachdegree of membership in fuzzy analytic network process. Furthermore, the degreepossibility for a convex fuzzy number to be larger than a given convex fuzzynumbers can be represented by an effective scheme. Particularly, the basicstructure in the fuzzy analytic network process model is organized hierarchically,and the local weights of the strategies, balanced scorecard perspectives andperformance indicators can be obtained by matrix computing. Finally, a casestudy of college English classroom teaching quantitative evaluation is given todemonstrate the performance of the proposed balanced scorecard design.Experimental results show that the proposed balanced scorecard design is quiteeffective. DOI : http://dx.doi.org/10.11591/telkomnika.v12i4.4804
A Research of Non-Contact Respiration and Heartbeat Signal Separation Hua Zhang; Guohua Lu; Sheng Li; Xijing Jing; Teng Jiao; Yang Zhang; Hao Lv; Xiao Yu; Jianqi Wang
Indonesian Journal of Electrical Engineering and Computer Science Vol 12, No 4: April 2014
Publisher : Institute of Advanced Engineering and Science

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Abstract

The objective of this research is from radar life parameter monitoring system for respiration and heartbeat signal separation, therefore the characteristic parameters of respiration;   heartbeat could be extracted to provide the basis for family care and disease prevention. This paper put forward a method to analyze the characteristics of the echo signal, improve adaptive filter harmonic combination of reference input signals for respiration. Home monitoring results for simulation experiment is proposed based on LMS adaptive harmonic cancellation algorithm for adaptive filtering. Conclusion in the home monitoring experiment can effectively separate the respiration and heartbeat signals. DOI : http://dx.doi.org/10.11591/telkomnika.v12i4.4777  
Design on Controlling-Management System of Gas Station Xiaoning Jiang; Jing Liu
Indonesian Journal of Electrical Engineering and Computer Science Vol 12, No 4: April 2014
Publisher : Institute of Advanced Engineering and Science

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Abstract

 With the sustained and rapid growth of domestic fuel consumption, consumers have made more and more high demand on the service of gas station. A stable and efficient refueling system which based on IC card is developed in this paper. The main purpose of this system is to realize the communication of pos terminal and tanker efficiently through protocol conversion, and the required functions of pos terminal and tanker are also achieved. In order to monitor the gas station much more conveniently, we design a real-time monitoring front-end interface which based on Ajax technology, and we can also control the tanker through the front-end interface. A stable refueling system can improve the economic benefit and company's core competitiveness. For it can provide scientific management and effective control of money, staff, oil, oil depot, equipment and so on. So refueling system has realistic necessity and important meaning of improving the working efficiency of the gas station and reducing the operational of the various costs. DOI : http://dx.doi.org/10.11591/telkomnika.v12i4.4924
Trilayer Graphene Nanoribbon Field Effect Transistor Analytical Model Meisam Rahmani; Razali Ismail; Mohammad Taghi Ahmadi; Komeil Rahmani; Ali H. Pourasl
Indonesian Journal of Electrical Engineering and Computer Science Vol 12, No 4: April 2014
Publisher : Institute of Advanced Engineering and Science

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Abstract

The approaching scaling of Field Effect Transistors (FETs) in nanometer scale assures the smaller dimension, low-power consumption, low energy delay production, and high density as well as high speed in processor. Trilayer graphene nanoribbon with different stacking arrangements (ABA and ABC) indicates different electrical properties. Based on this theory, ABA-stacked trilayer graphene nanoribbon application as a field effect transistor channel is investigated in this study. The energy band structure of ABA-stacked trilayer graphene nanoribbon in the presence of a perpendicular electric field using a tight-binding model is presented, and the effect of applied voltage on the curvature of the E-K graph is analytically studied. Moreover, an analytical model of carrier statistics for ABA-stacked trilayer graphene nanoribbon in corporation with a numerical solution is presented and current-voltage characteristic of trilayer graphene nanoribbon FET as a one-dimensional device is explored. In fact, the proposed model can be applied as a useful tool to optimize the nanoscale FET based device performance. DOI : http://dx.doi.org/10.11591/telkomnika.v12i4.4698
A Novel Data Mining Algorithm for Mathematics Teaching Evaluation Gang Wang
Indonesian Journal of Electrical Engineering and Computer Science Vol 12, No 4: April 2014
Publisher : Institute of Advanced Engineering and Science

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Abstract

AbstractWith relative theory about technology of datamining and recommender model of user’s interest, this paper presents the methodof MWFP-TREE based on the combination between recommender model idea of user’sweight and the minimum weighted FP-TREE method. Compared to traditional method,this method does not only carry out dimension reduction of raw data to improvethe efficiency of a constructing tree but it also performs association rulemining and improves mining effect. This method is applied to mathematics  teaching evaluation in one university and it findsout different evaluations from different students respectively consideringstudents’ information and teachers’ information while it is not similar totraditional thought which is only to perform mining direction based onteachers’ information. Towards mining regulations and results, it providessignificant referential values for objectivity of teaching evaluation andteaching directions. DOI : http://dx.doi.org/10.11591/telkomnika.v12i4.4809
Research on Technology of Database for the Complex Assembly System Yunpeng Cai
Indonesian Journal of Electrical Engineering and Computer Science Vol 12, No 4: April 2014
Publisher : Institute of Advanced Engineering and Science

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Abstract

Database technology is the key technology to ensure assembly control data validity, completeness, consistency, security in the complex assembly system. A database model supporting complex assembly system was presented based on the requirement analysis of complex assembly system in data storage and extraction. The embedded database was used to storage the share visualization data for portable devices. The spatial database was built to storage the dynamic assemble process message (such as parts, frocks and assemble environment spatial position provided by Indoor GPS system).  The distributed database systems supporting static model data and dynamic assembly process data storage constitute the data framework of complex assembly system. DOI : http://dx.doi.org/10.11591/telkomnika.v12i4.5003
On the Algebraic Immunity of Boolean Function Cao Hao; Wang Huige
Indonesian Journal of Electrical Engineering and Computer Science Vol 12, No 4: April 2014
Publisher : Institute of Advanced Engineering and Science

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Abstract

In view of the construction requirements of Boolean functions with many good cryptography properties, through the analysis of the relationship between the function values on the vectors with weight not more than d  and the algebraic immunity, a method to determine the higher order algebraic immunity function is given. Meanwhile, a method that appropriate change in the function value without reducing algebraic immunity is produced, and using it, an example to construct Boolean function with optimal properties in the algebraic immunity, nonlinearity, balance and correlation immunity etc is presented. DOI : http://dx.doi.org/10.11591/telkomnika.v12i4.4773
Scheduling Two-machine Flowshop with Limited Waiting Times to Minimize Makespan Bailin Wang; Tieke Li; Cantao Shi; Haifeng Wang
Indonesian Journal of Electrical Engineering and Computer Science Vol 12, No 4: April 2014
Publisher : Institute of Advanced Engineering and Science

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Abstract

There are numerous instances of flowshop in the production process of process industry. When such characteristics as continuous production resulted from high-temperature environment or deteriorate intermediate products are took into consideration, it should be ensured that the waiting time of any job between two consecutive machines is not greater than a given value, which results in the flowshop scheduling problem with limited waiting time constraints. The problem with two-machine environment to minimize makespan is studied. Based on the discussion of the lower bound of the minimal makespan and some properties of the optimal schedule, a two-stage search algorithm is proposed, in which the initial schedule is generated by a modified LK heuristic in the first stage and the excellent solution can be obtained by constructing inserting neighborhood in the second stage. The numerical results demonstrate the effectiveness of the algorithm. DOI : http://dx.doi.org/10.11591/telkomnika.v12i4.4783 
Design of Structural Parameters of Centrifugal Elevator Overspeed Governors Yunpu Song; Cheng Chen
Indonesian Journal of Electrical Engineering and Computer Science Vol 12, No 4: April 2014
Publisher : Institute of Advanced Engineering and Science

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Abstract

As an important part of overs-peed and fail-safe protection for elevators, the centrifugal elevator overspeed governor is a device for limiting overspeed of elevator cars. This paper researches on the impact of the spring stiffness of the centrifugal block, which plays a key role in the performance of this overspeed governor, on the operation of the over-speed governor. By setting up a mathematical model and further carrying out simulation analysis, this paper researches on the influence of systematic parameters, such as the mass of centrifugal block, the turning radius of the centrifugal block, the amount of spring compression of the centrifugal block, on the spring stiffness of the centrifugal block, and obtains their specific influence relationship. DOI : http://dx.doi.org/10.11591/telkomnika.v12i4.4839

Page 8 of 11 | Total Record : 102

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