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International Conference on Space Science and Communication (IconSpace)

作者： Mohammad Syuhaimi Ab-Rahman Suria Che Rosli Zurita Zakaria Faridah Jaafar Kasmiran Jumari Spectrum Technology Research Division Computer and Network Security Research Group Department of Electrical Electronic & Systems Engineering Faculty of Engineering and Built Environment Universiti Kebangsaan Malaysia Bangi Malaysia

Fiber-to-the-home (FTTH) network system can transmit signal at a high speed level such as transmitting video, data and voice signals to the users. However, we do not know whether the send signals are in a good condition or not. Therefore, a community access television, CATV tester device is needed. An upgrading from first generation CATV tester unit, a wireless technology is applied through the implementation of audio video transmitter and receiver. This tester will display the received signal on the display panel, if the signal received by the CATV tester device is accompanied by undesired signals and noises, it will then indicate that the main (FTTH trunk line) is probably damaged and needed to be repaired. With the application of wireless technology, video signal that is transmitted through fiber optic cable located in the underground can be simply detected and determined whether it is functioning or not. An addition of solar panel as battery charger for power saving is also applied.

关键词： Optical fiber subscriber loops Auditory displays Optical fiber devices Optical fiber testing Optical transmitters Optical noise Optical fibers Cable TV Optical fiber cables Batteries

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CATV tester unit for fiber-to-the-home

CATV tester unit for fiber-to-the-home

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International Conference on Space Science and Communication (IconSpace)

作者： Mohammad Syuhaimi Ab-Rahman Suria Che Rosli Faridah Jaafar Zurita Zakaria Kasmiran Jumari Spectrum Technology Research Division Computer and Network Security Research Group Department of Electrical Electronic & Systems Engineering Faculty of Engineering and Built Environment Universiti Kebangsaan Malaysia Bangi Malaysia

Fiber-to-the-home (FTTH) network system is used to transmit video, data and voice signals to users at a high speed level. Therefore, good signals are essential. Thus, to monitor the condition of the signals, a CATV tester device is needed. CATV tester device is designed to measure the CATV signals which are passing through the optical network unit (ONU) at the user's premises. A single mode optical fiber signal entering the ONU will be obtained by `tapping' method and the signal then will be fed into the CATV tester unit through optical cable connection. The signals will be converted into audio/video signal and be fed to display panel. This tester will display the received signal on the display panel; if the signal received by the CATV tester device is accompanied by undesired signals and noises, video displayed would degrade; it will then indicate that the main (FTTH trunk line) is probably damaged and needed to be repaired.

关键词： Optical fiber testing Optical network units Auditory displays Optical fiber devices Optical fiber subscriber loops Condition monitoring Optical design Signal design Optical fibers High speed optical techniques

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NON‐DESTRUCTIVE EVALUATION OF FATIGUE DAMAGE FOR SUS316 BY USING ELECTROMAGNETIC METHODS

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AIP Conference Proceedings 2009年第1期1096卷 1442-1449页

作者： M. Oka Y. Tsuchida T. Yakushiji M. Enokizono aDepartment of Computer and Control Engineering Oita National College of Technology 1666 Maki Oita 870‐0152 Japan bDepartment of Electrical and Electronic Engineering Faculty of Engineering Oita University 700 Dannoharu Oita 870‐1192 Japan cDepartment of Mechanical Engineering Oita National College of Technology 1666 Maki Oita 870‐0152 Japan

There are some fatigue damage estimation methods for an austenitic stainless steel that uses martensitic transformation. For instance, those are the remanent magnetization method, the excitation method using the differential pick‐up coil, and so on. We are researching also those two methods in our laboratory now. In the remanent magnetization method, it is well known that the relationship between fatigue damage and the remanent magnetization is simple, clear, and reproducible. In addition, the excitation method can be easily used at the job site because the special magnetizer is unnecessary. But, these methods have some disadvantages shown as follows. For instance, the former needs a special magnetizer and the latter’s output signal is small. On the other hand, it is well known that the inductance of a pancake type coil put on the metallic specimen changes according to the electromagnetic properties of the metallic specimen. In this paper, the assessment method of fatigue of an austenitic stainless steel (SUS316) that uses the change by fatigue of the inductance of the pancake type coil measured with the LCR meter is shown. In addition, the fatigue evaluation performance of this method is described.

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Evaluation of liver shape approximation and characterization

Evaluation of liver shape approximation and characterization

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IIH-MSP 2009 - 2009 5th International Conference on Intelligent Information Hiding and Multimedia Signal Processing

作者： Mofrad, Farshid Babapour Zoroofi, Reza Aghaeizadeh Chen, Yen-Wei Tehrani-Fard, Ali Abbaspour Sato, Yoshinobu Furukawa, Akira College of Information and Science Ristumeikan University Shiga Japan Faculty of Engineering Science and Research Branch Islamic Azad University Tehran Iran School of Electrical and Computer Engineering College of Engineering University of Tehran Tehran Iran Electrical and Electronic Engineering School Sharif University of Technology Tehran Iran Division of Image Analysis Graduate School of Medicine Osaka University Osaka Japan Department of Radiology Shiga University of Medical Science Shiga Japan

ISBN: (纸本)9780769537627

A computational framework is presented for 3-D liver shape approximation and characterization in order to determine the accuracy of shape reconstruction via Spherical Harmonics expansion. Spherical Harmonics is a powerful mathematical tool for expanding the shape. But in medical domain, livers have very variation geometry, in shape, size, and volume. In this regards, we evaluated and optimized the Spherical Harmonics to create 3-D parametric surface of the liver from Computed Tomography (CT) imaging system which may useful for Shape modeling, surface representation, physical measurement of objects and mathematical model. We select randomly 5 livers from more 100 dataset. Mean Hausdorff distance Errors and Dice similarity coefficient DSC by liver volumes was measured. The experimental results showed that the best order of Spherical Harmonics Expansion for livers is between 12∼17. © 2009 IEEE.

关键词： Harmonic analysis

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Embedded ethernet microcontroller for optical monitoring

Embedded ethernet microcontroller for optical monitoring

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International Conference on Space Science and Communication (IconSpace)

作者： Mohamad Syuhaimi Ab-Rahman Mohamad Najib Mohamad Saupe Aswir Premadi Kasmiran Jumari Spectrum Technology Division Computer and Network Security Group Department of Electrical Electronic and System Engineering Faculty of Engineering and Built Environment Universiti Kebangsaan Malaysia Bangi Selangor Darul Ehsan Malaysia

In this paper, we presented the embedded Ethernet microcontroller for optical monitoring. This design is used for fiber monitoring in the FTTH system. The embedded Ethernet microcontroller is used to control the 1x8 optical switches where this switch is to reroute the optical signal in the FTTH system. These systems consisting of two primaries part communicating each other: (i) A server consisting of a microcontroller PIC18F97J60 with built-in embedded Ethernet controller module and (ii) a client computer. In this system, a microcontroller system is act like web server that store the web pages in their memory, a client computer can access this web page using web browser to monitor and control the microcontroller where the microcontroller is used to control the path of the optical signal by using optical switch.

关键词： Ethernet networks Microcontrollers Monitoring Control systems Optical control Optical switches Optical fiber subscriber loops Web pages Embedded computing Web server

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Microwave-based soybean meal moisture classification using resonance cavity

Microwave-based soybean meal moisture classification using r...

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SICE Annual Conference

作者： N. Kittiamornkul K. Chamnongthai S. Kiattisin A. Leelasantitham K. Higuchi Department of Computer and Multimedia Engineering School of Engineering University of Thai Chamber of Commerce Bangkok Thailand Department of Electronic and Telecommunication Engineering Faculty of Engineering King Mongkut's University of Technology Thonburi Bangkok Thailand University of Electro-Communications Tokyo Japan

The moisture content inspection for agriculture material is very necessary to make a quality control. Since the amount of the soybean meal, which can transmute into animal food, is very plenty and the distribution of moisture is difference. Therefore, the non-destructive moisture inspection is difficult to perform. This paper proposes microwave free-space measurement using the resonance cavity. Measuring the resonance frequency after passing the soybean meal and calculate them in term of complex permittivity. The results show that the technique can provide fast soybean meal moisture classification with 80% of accuracy.

关键词： Moisture Resonance Inspection Permittivity measurement Agriculture Quality control Animals Microwave measurements Frequency measurement Resonant frequency

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A radial basic function with multiple input and multiple output neural network to control a non-linear plant of unknown dynamics

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Information technology Journal 2008年第3期7卷 430-439页

作者： El-Kouatly, R. G.Salman, A. Department of Electronic and Communication Engineering Faculty of Mechanical and Electrical Engineering Damascus University Syria College of Computer Engineering and Information Syrian National Private University for Science and Technology Syria

In this study, the application of the Radial Basis Function (RBF) with Multiple Input and Multiple Output (MIMO) Neural networks to control two types of non linear model plants of unknown dynamics. For the first step a model of a control was developed using the variable liquid-level which can be use in a chemical plant, or power station, where the liquid-level is change within fixed real time. In this control system Radial Basis Function (RBF) neural networks was used to control the liquid-level of the plant. The second step introduced the changes of the liquid-level in real time, also Radial Basis Function with MEMO neural networks has been used to control the level liquid. The study shows that the proposed control system produces accurate results for the two types of models. However, we notice that the training, using back propagation, for the second model take a more considerable time than training the first model. © 2008 Asian Network for Scientific Information.

关键词： Backpropagation

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Characteristics comparison of motion controllers through experiments

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Journal of Institute of Control, Robotics and Systems 2008年第11期14卷 1094-1102页

作者： Jung, Seung Hyun Wang, Jun Han, Chang Wook Park, Jung-Il Automation Technology Senior Researcher Korea Textile Machinery Research Institute Gyeongsan Korea Republic of School of Electronic Engineering University of Electronic Science and Technology of China China School of Electrical Engineering and Computer Science Yeungnam University Korea Republic of Faculty of the School of Electrical Engineering and Computer Science Yeungnam University Korea Republic of

Through the motion control experiment using Industrial Emulator(Model 220 by ECP), the performance comparison of three kinds of controllers such as PID, RIC and LQR was carried out. It was shown that RIC has the best performance in the presence of disturbances such as step one, sinusoidal one and Coulomb friction for the rigid body. LQR using feedback state variables has the best tracking performance for the flexible body. The performance of PID controller is low compared to other controllers, but the design process is simple. The most advanced controller is LQR. In order to attenuate disturbance, an additional state observer should be used to estimate it, making more complex control system. RIC lies between PID and LQR in view of complexity of design. Even though RIC is not complicated, it has good disturbance rejection ability and less tracking error. By considering these aspects, the RIC is suggested as high precision controller to be used in motion control system.

关键词： Disturbance rejection

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Increasing testability in QCA circuits using a new test method

Increasing testability in QCA circuits using a new test meth...

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2008 3rd International Design and Test Workshop, IDT 2008

作者： Adineh-Vand, A. Latif-Shabgahi, G. Azghadi, Mostafa Rahimi Computer Dept. Engineering Faculty Islamic Azad University Arak Iran Electronic and Computer Dept. Electrical Faculty Power and Water University of Technology Tehran Iran Computer Engineering Dept. ECE Faculty Shahid Beheshti University Tehran Iran

ISBN: (纸本)9781424434770

Recently testing of Quantum-dot Cellular Automata circuits has attracted a lot of attentions. This paper proposes a novel method for testing QCA circuits. The method is based on circuit partitioning capability and multi-layer feature of QCA circuits. It can be useful for testing large circuits with many inputs. The proposed test method has potential to increase observability and controllability of QCA circuits, and hence it can amplify testability. In addition, it can be an effective method regarding to Built in Self Test (BIST) technique. Some simulations are performed using a QCA circuit layout and functionality checking tool, called QCADesigner.

关键词： Built-in self test

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Merged three-terminal magnetotransistor based on the carrier Recombination-Deflection effect

Merged three-terminal magnetotransistor based on the carrier...

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2008 IEEE Sensors, SENSORS 2008

作者： Leepattarapongpan, Chana Penpondee, Naritchapan Phetchakul, Toempong Phengan, Weera Chaowicharat, Eakalak Hruanun, Charndet Poyai, Amporn Thai Microelectronics Center National Electronics and Computer Technology Center Chachoengsao Thailand Electronic research center Department of ElectronicFaculty of Engineering King Mongkut's Institute of Technology Ladkrabang Bangkok Thailand

ISBN: (纸本)9781424425808

This article presents a merged three terminals magnetotransistor based on the carrier recombination - deflection effect. This particular magnetotransistor structure relies on the combination of difference of base current and collector current in +x and -x directions. As a result, the output voltage and absolute sensitivity to magnetic field will be double. The structure of magnetotransistor consists of oneemitter, two collector and two base contacts. The devices can detect magnetic field in vertical direction (BZ) by relying on the difference between base current and collector current (°ICB). From the experiment, with emitter current at 5, 8, and 10 mA, the magnetotransistor had the highest sensitivity of 1.125mV/mT when emitter current was at 10 mA. © 2008 IEEE.

关键词： Magnetic fields

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