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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 90 Documents
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Search results for , issue "Vol 11, No 9: September 2013" : 90 Documents clear
An Efficient Approach and Procedure to Solve Customer Complaints Based on Combined Rasterization of Geography Information System Qiang Chen; Sheng Jie Chen; Wei Guo; Jin Li
Indonesian Journal of Electrical Engineering and Computer Science Vol 11, No 9: September 2013
Publisher : Institute of Advanced Engineering and Science

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Abstract

To solve customer complaints better for some telecommunication enterprises, a new and efficient approach through combined rasterization of Geography Information System (GIS) is presented in this paper. By the combined rasterization of surface features and landforms, the historical customer complaints and the real-time running state of network will be utilized to handle new complaints simultaneously. Also, an innovative process to handle complaints is proposed, too. The utilization of method and process will shorten the time of processing routine customer complaints. The experimental results show that the efficiency to process customer complaints will be improved greatly and the operation expenditure on customer services for telecommunication operators will be also decreased than before. DOI: http://dx.doi.org/10.11591/telkomnika.v11i9.2279
A Research About the Concrete Compression Failure Deliang Meng; Huijian Li; Lixin Zhang; Pin Cheng
Indonesian Journal of Electrical Engineering and Computer Science Vol 11, No 9: September 2013
Publisher : Institute of Advanced Engineering and Science

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Abstract

Concrete material is one of the wide applications materials in the engineering. There is an important implication on national life safety to research its destruction. And size effect of the concrete also has an important impact on failure mechanism and strain injury of the concrete. There are many influencing factors on concrete size effect. In this paper, we will use the numerical simulation method to research the concrete compression failure from two aspects. One is the arrangement of the aggregate and the other is the aggregate maximum rotation angle. Finally, we got the impact of the law that the two aspects how affected the concrete compression failure. This will provide great guiding significance to the engineering practice. DOI: http://dx.doi.org/10.11591/telkomnika.v11i9.3242 
Timed Behavioral Specification in Globally Asynchronous Locally Synchronous systems Yu Tonglan; Liu Jie; Zhang Juan; Wu Qujing
Indonesian Journal of Electrical Engineering and Computer Science Vol 11, No 9: September 2013
Publisher : Institute of Advanced Engineering and Science

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Abstract

In this paper, we propose a PolGALS language for safety critical GALS(Globally Asynchronous Locally Synchronous) systems. The formal syntax and semantics are given and its compilation and implementation are defined. The language is based on timed CSP(communicating sequential process) style rendezvous between clock domains, aiming at modelling the timed behavioral of safety critical GALS systems. PolGALS is used to design timed behavioral pattern to implement timing requirements, e.g. delay, timeout, deadline, timed interrupt,etc. PolGALS provides a mechanism for implementation of timed behavioral pattern and potential for their formal verification because it is based on a PolGALS model of computation and its formal semantics. DOI: http://dx.doi.org/10.11591/telkomnika.v11i9.3257
Architecture Design of the Cladding Part Modeling System Yang Junru; Sun Hong; Zhang Lili; Zhang Daozhong; Zhang Yuekan
Indonesian Journal of Electrical Engineering and Computer Science Vol 11, No 9: September 2013
Publisher : Institute of Advanced Engineering and Science

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Abstract

The cladding part is a new type of layered heterogeneous material part with three layers of the substrate, the interface and the clad. According to the part unique material composition and structural characteristic, based on the hierarchical modeling method, the software architecture design of the cladding part modeling system was researched. Using UML (Unified Modeling Language) and the software Rational Rose, the use cases, static logic, dynamic logic and physical deployment of the modeling system were described with the use case diagram, class diagrams, communication diagrams, components diagram and deployment diagram. The research results can guide the development process of the cladding part modeling system with high stability and reliability. DOI: http://dx.doi.org/10.11591/telkomnika.v11i9.3274
Application of Empirical Mode Decomposition for Ultrasonic Testing of Coarse-grained Materials Qiufeng Li; Gengsheng Luo; Guo Chen; Pan Huang
Indonesian Journal of Electrical Engineering and Computer Science Vol 11, No 9: September 2013
Publisher : Institute of Advanced Engineering and Science

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Abstract

In ultrasonic testing of coarse-grained materials, signal to noise ratio (SNR) of testing signals is reduced seriously for the structure noise, and echoes from defects are difficult to be identified. In order to improve the SNR and the reliability of ultrasonic testing of coarse-grained materials, empirical mode decomposition (EMD) is introduced to process the testing signal here. Signal envelope can be formed by using cubic spline interpolation, and nonlinear and non-stationary signal can be decomposed self-adaptive into the sum of several intrinsic mode functions (IMF) by using characteristic time scale of the signals, and then higher order and tendency of the original signals can be obtained. The denoising experiment with low SNR simulated signal are achieved according to the feature of EMD, and SNR is enhanced more by comparison with the wavelet analysis method. And testing signal collected from coarse-grained materials is used to finish denoising experiment, and it is shown from the experiment result that the EMD has better adaptive ability in decomposing noise-polluted signals and less empirical information is required in the denoising process. DOI: http://dx.doi.org/10.11591/telkomnika.v11i9.3286 
Mathematics Approaches in Compressed Sensing Jianhua Zhou; Siwang Zhou; Qiang Fan
Indonesian Journal of Electrical Engineering and Computer Science Vol 11, No 9: September 2013
Publisher : Institute of Advanced Engineering and Science

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Abstract

Mathematical approaches refer to make quantitative descriptions, deductions and calculations through the use of mathematics concepts, approaches and techniques, then draw some new conclusions and foresee by mathematical analysis and judgment. In recent years, Compressed Sensing theory (CS) provides solutions in alleviating the huge amount of information demand in the pressure of signal sampling, transmission and storage pressure. It is a novel signal sampling theory under the condition that the signal is compressible or sparse.In this case, the signal can be reconstructed accurately from the small amount of signal values if the signal is sparse or compressible. This paper introduces the CS theory framework and key technical issues, and focus on the analysis of the application of mathematical approaches in three aspects of the signal sparse representation, signal sparse transformation and reconstruction.In the end, Some mathematics problems of compressed sensing to solve are given and further development is pointed out. DOI: http://dx.doi.org/10.11591/telkomnika.v11i9.3303
Pulse Clean and Regeneration Control Device in Ceramic Filter Xilian DIAO; Haiming LIU; Yang LIU
Indonesian Journal of Electrical Engineering and Computer Science Vol 11, No 9: September 2013
Publisher : Institute of Advanced Engineering and Science

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Abstract

This article developed a 6120-type diesel particulate filter pulse clean and regeneration control system with a high efficiency, simple reliable use. And it has determined the spray nozzle diameter, the injection distance, the injection pressure, the pulse width, the injection time of five factor optimal fit experiment parameter. This control system can flow the type honeycomb ceramics filter to the wall to carry on the test and the research of the filtration and the regeneration; It can realize the filter filtration and the regeneration change work. DOI: http://dx.doi.org/10.11591/telkomnika.v11i9.3232 
Anti-Counterfeit Technology of Halftone Image Watermarking by Digital Screening Qifeng Chen; Guangxue Chen; Shuangshuang Wen; Jinglei Tai
Indonesian Journal of Electrical Engineering and Computer Science Vol 11, No 9: September 2013
Publisher : Institute of Advanced Engineering and Science

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Abstract

From the point of view of the digital printing, this paper focused on researching the anti-counterfeit print technology of halftone images and directly detecting techniques combined with digital image processing technology, thereby enhancing the security features of the printed mater. The grating has converged effect on light in the corresponding direction, which makes it compress and isolate images. According to this feature of grating, the variable angle algorithm of screening anti-counterfeit technology was proposed, and in accordance with the algorithm, the experiment of grating extracting the watermarking of halftone image was studied in this paper. In this experiment, we designed other screening angles to hide the information, we called it the variable angle screening security technology. When detecting the hidden information, only at the same angle could we observe the security effect with corresponding lines of the grating. The experimental results showed that the variable angle algorithm of screening anti-counterfeit technology had nice security effect, and could be used in practical application. DOI: http://dx.doi.org/10.11591/telkomnika.v11i9.3252 
RBF neural network PID for Bilateral Servo Control System Zhang Jingdong; Wen Guang; Wei Yongqiao; Yin Guofu
Indonesian Journal of Electrical Engineering and Computer Science Vol 11, No 9: September 2013
Publisher : Institute of Advanced Engineering and Science

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Abstract

Tele-operated bilateral hydraulic servo system with master-slave robot at the core can be complex manipulated in uncertain or extreme environment (such as space, seabed, radicalization, battlefield, etc.). In this paper, a novel force feedback bilateral servo system is presented, based on analysis of bilateral servo system at home and abroad, which adopts tuning PID control algorithm with RBF neural network at the same time. From the simulation results, the novel force feedback bilateral servo system is presented to verify the effectiveness of the proposed control algorithm.The control briefness, fast response, strong robustness, good disturbance rejection capability and good adaptive capability can be obtained.It is also revealed from simulation results that the proposed control algorithm is valid for force feedback bilateral servo system and also provides the theoretical and experimental basis. DOI: http://dx.doi.org/10.11591/telkomnika.v11i9.3269 
The Research of Mobile phone Entrance Guard System Model based on the Encryption Two-dimensional Code Chu Jianli; Sun Yongdao; Liu Xia
Indonesian Journal of Electrical Engineering and Computer Science Vol 11, No 9: September 2013
Publisher : Institute of Advanced Engineering and Science

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Abstract

This article designs a new mobile-phone entrance guard system, uses the encryption two-dimensional code for identity authentication. Different from other similar products in the market, this system does not rely on specialized mobile phone card or NFC (near field communication) module. It can be directly realized through mobile-phone software, and it can be operated simple and safer. This article designs the whole system model, includes structure, function and workflow. It also analyzes and researches the main algorithms used in the system, which include security policy algorithm, encryption two-dimensional code algorithm and image recognition algorithm. Finally, it provides the solution method for the problem in the experimental simulation. It also evaluated and summarized the experimental results. DOI: http://dx.doi.org/10.11591/telkomnika.v11i9.3281

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