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IEEE Conference on Industrial Electronics and Applications (ICIEA)

作者： Yaw-Juen Wang Ming-Hsueh Lee Department of Electrical Engineering National Yunlin University of Science and Technology Yunlin Taiwan School of Engineering Science and Technology (Doctoral Program) National Yunlin University of Science and Technology Yunlin Taiwan

Three-phase voltage unbalance has long been a problem in electric power system. It not only increases the system losses but has detrimental effects on three-phase rotating machines. This paper deals with the pulsating torque of an induction motor caused by Steinmetz connection which has been used for a three-phase motor operating on a single-phase supply. An analytical model based on the positive-sequence and negative sequence equivalent circuits of the motor is developed, and the pulsating torque as a function of the capacitance and slip rate are then derived. The proposed analytical method is verified by the Universal Machine Model of the EMTP. Finally it is provided to show the relation between site measurement, mathematical analysis and EMTP simulation. It is expected that the proposed method can be used to get a solution for pulsating torque by Three-phase voltage unbalance.

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Fuzzy Fusion for Affective State Assessment in Distance Learning Based on Image Detection

Fuzzy Fusion for Affective State Assessment in Distance Lear...

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2008 International Conference on Audio，Language and Image Processing(2008国际声音、语言、图像过程大会)

作者： Kuoan Hwang Chiahao Yang Department of Computer Science and Information Engineering & Graduate Institute of Networking and Co Graduate Institute of Informatics Doctoral program Chaoyang University of Technology

Distance learning is a learning style that can overcome the limitation of time and space. Because of the distance, teachers can not handle the student's learning situation, and they do not know whether the student is attentive, drowsy or absent. If teachers can know the student's affective state, they can overcome the difficult. The research applies the image recognition technologies to capture the face images of students when they are learning and analyzes their face features to evaluate the student's affective state by Fuzzy Integral. Finally, teachers can monitor the student's behavior by the detection results on the system interface.

关键词： Distance learning Skin Computers Distance measurement Face Image color analysis Education

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Safety management on fire emergency response by VESDA applications at semiconductor plants

Safety management on fire emergency response by VESDA applic...

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IEEE International Conference on Systems, Man and Cybernetics

作者： Chun-Ping Lin Chi-Min Shu Doctoral Program Graduate School of Engineering Science and Technology National Yunlin University of Science and Technology Yunlin Taiwan Process Safety and Disaster Prevention Laboratory Department of Safety Health and Environmental Engineering National Yunlin University of Science and Technology Yunlin Taiwan

To take an advantageous stance in the recent competition of semiconductor industries, companies have made efforts to invest terms of technological advancements. From 1993 to 2006, enormous fire accidents occurred in three national science parks in Taiwan. This research focused on whether the very early smoke detection apparatus (VESDA), could adequately assist the emergency response center (ERC) members to take actions when alarm occurs. Besides, the research also analyzed every VESDA alarm that happened from 2004 to 2006 for the purpose of increasing ERC personnel's experience and coordinating ERC with departments of safety management, environmental protection, facility engineering, and equipment sections together to investigate better solutions to related problems.

关键词： Disaster management Fires Electronics industry Accidents Smoke detectors Personnel Safety devices Environmental management engineering management Protection

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Attentiveness Assessment in Learning Based on Fuzzy Logic Analysis

Attentiveness Assessment in Learning Based on Fuzzy Logic An...

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International Conference on Intelligent Systems Design and Applications (ISDA)

作者： Kuo-An Hwang Chia-Hao Yang Department of Computer Science and Information Engineering & Graduate Institute of Networking and CommunicationEngineering ChaoYang University of Technology Taiwan Graduate Institute of Informatics Doctoral program ChaoYang University of Technology Taiwan

Learner attention affects learning efficiency. However, in many classes, teachers cannot assess the degree of attention of every student. When a teacher is capable of addressing inattentive students immediately, he can avoid situations in which students are inattentive. Many studies have analyzed student attentiveness by the applying of image detection technologies. If this mechanism can be applied to in-class learning, it will help teachers keep students attentive, and reduce teacher load during class. This study mainly applies fuzzy logic analysis of student facial images when participating in class. Applying fuzzy logic can prevent erroneous judgments associated with a single term, and help teachers deal with student attentiveness.

关键词： Fuzzy logic Face detection Image analysis Image color analysis Education Eyes Design engineering Chaotic communication Image processing Face recognition

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Modeling the effect of population growth on stream nutrient concentration in turkey creek watershed using the WARMF model

Modeling the effect of population growth on stream nutrient ...

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11th National Symposium on Individual and Small Community Sewage Systems

作者： Geza, M. McCray, John E. Post Doctoral Researcher Environmental Science and Engineering Division Colorado School of Mines Department of Hydrologic Science and Engineering Program Environmental Science and Engineering Division Colorado School of Mines

Population growth and water quality in the foothills of Jefferson County are of concern to County's Board of County Commissioners and the Planning and Zoning Department. The Department desires to meet the needs of residents for adequate supplies of good quality water. The Turkey Creek watershed is representative of the foothills portions of Jefferson County. In 2001 population in the Turkey Creek watershed is estimated at 11,064 residents with projected population growth, using a 2-percent per year rate, at 13,186 residents in 2010, and 15,313 residents in 2020. Wtershed based non-point source (NPS) studies have usually ignored the impact of on-site septic systems (OWS) on the quality of surface water. However, OWS can be a substantial source of nutrients to surface waters. Point discharges from Wastewater Treatment Plants (WWTPs) can also contribute to stream pollution from nutrients if treatment efficiency at the WWTP is low. Several models can handle point source discharges from WWTPs. Evaluating nutrient loading from septic systems to streams is a challenging task because most NPS models are not specifically developed to track the fate and transport of nutrients from on-site systems. The Watershed Analysis Risk Management Framework (WARMF) model is adapted to simulate on-site septic systems loading. The 122.2 square-kilometer Turkey Creek watershed is located in Jefferson County, southwest of Denver, Colorado. The topography is mostly steep with elevations ranging from about 1800 m to 3200 m. WARMF model hydrologic calibration was performed using data from the gage station located at Turkey Creek at mouth of canyon near Morrison. Water-quality data collected during flow calibration period was used to guide water quality calibration. The base case scenario is established at year 2001. The scenarios in this study are population at 1990 and projected population at year 2010. The scenario runs will also provide the contributions of different water treatment options

关键词： Nutrients

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Perpendicular Co-Zn-Gd Magnetic Film Electrodeposited by Molten Chlorozincate Electrolyte

Perpendicular Co-Zn-Gd Magnetic Film Electrodeposited by Mol...

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International Conference on Magnetics (INTERMAG)

作者： M. Shu T. Wu C. Yang Taiwan SPIN Research Center National Yunlin University of Science and Technology Yunlin Taiwan National Yunlin University of Science and Technology Douliou TW Graduate School of Engineering Science and Technology (Doctoral Program) National Yunlin University of Science and Technology Yunlin Taiwan Department of Environmental Resources Management Overseas Chinese Institute of Technology Taichung Taiwan

We have utilized ZnCl 2 -dimethylsulfone (DMSO 2 ) as the electrolyte with added CoCl 2 and GdCl 3 for electrodepositing a magnetic film. Moreover, the controlled potential method was utilized for film deposition. The voltammogram revealed that the reduction of Co-Zn-Gd film can be achieved by applying a potential in the range from -0.1 to -0.5 volts. From the results of AGM analyses, a high squareness value (Mr/Ms = 0.923) of the Co-Zn-Gd film at -0.3 volt was observed. In previous research, perpendicular magnetic materials have been applied to magnetic optic (MO) media, magnetic recording heads, and perpendicular magnetic tunneling junction (pMTJ). However, preparation of magnetic materials is normally carried out in high vacuum systems. Since electrodeposition methods for preparation of magnetic films have several advantages, such as simple equipment, ease of operation and relatively large area, the use of electrodeposition has great potential for preparing films.

关键词： Magnetic films Optical films Magnetic materials Magnetic analysis Perpendicular magnetic recording Optical recording Magnetic recording Magnetic heads Magnetic tunneling Vacuum systems

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Location management for PCS networks with consideration of mobility patterns

Location management for PCS networks with consideration of m...

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IEEE INFOCOM 2005

作者： Li, Jie Kubota, Atsushi Kameda, Hisao Department of Computer Science Graduate School of Systems and Information Engineering University of Tsukuba Tsukuba Sci. City Ibaraki 305-8573 Japan Doctoral Program in Science and Information Engineering University of Tsukuba Tsukuba Sci. City Ibaraki 305-8573 Japan

ISBN: (纸本)0780389689

This paper addresses the dynamic location management for personal communication service (PCS) networks with consideration of mobility patterns. The popular hexagonal cellular architecture is considered. In this paper, we first introduce a coordinate system for the hexagonal cellular architectures. Then, we develop an all-direction mobility model based on the coordinate system for the hexagonal cellular architecture to cope with the mobility patterns of mobile terminals (MTs). The shape and size of the local area (LA) in the dynamic location management scheme is determined by minimizing the total location management cost with bounding the paging cost The optimization problem is transferred to maximize expected number of cells traversed by the MT in the LA with a given size of the LA. The analytic model of calculating the probabilities of any MT's moving is established. An algorithm is proposed to solve the optimization problem efficiently. © 2005 IEEE.

关键词： Data transfer

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Optimal Location Management for PCS Networks with Hexagonal Cellular Architectures

Optimal Location Management for PCS Networks with Hexagonal ...

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The 2004 Joint Conference of the 10～(th) Asia-Pacific Conference on Communications and the 5～(th) International Symposium on Multi-Dimensional Mobile Communications

作者： Atushi Kubota Doctoral Program in Science & Information Engineering University of Tsukuba Tsukuba Science City Ibaraki 305-8573 Japan

This paper addresses the dynamic location management for personal communication sen'ice (PCS) networks with popular hexagonal celluar architectures. We first introduce a coordinate system for the hexagonal celluar architectures. Then, we develop an all-direction mobility model based on the coordinate system for the hexagonal cellular architecture to cope with the mobility patterns of mobile terminals (MTs). By using the proposed model, the shape and size of the local area in the dynamic location update scheme are determined optimally.

关键词： Optimal Location Management for PCS Networks with Hexagonal Cellular Architectures

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A Proposal of GA Using Symbiotic Evolutionary Viruses and its Virus Evaluation Techniques

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Journal of Advanced Computational Intelligence and Intelligent Informatics 2004年第4期8卷 421-425页

作者： Sakakura, Yoshiaki Taniguchi, Noriyuki Hoshino, Yukinobu Kamei, Katsuari Frontier Doctoral Program in Science and Engineering Ritsumeikan University Japan Graduate School of Science and Engineering Ritsumeikan University Japan Human and Computer Intelligence College Information Science and Engineering Ritsumeikan University 1-1-1 Noji-higashi Kusatsu Shiga525-8577 Japan

In this paper, we propose a Genetic Algorithm (GA) using symbiotic evolutionary viruses based on both the building block hypothesis and the virus theory of evolution. The proposed GA aims to control the destruction of building blocks by discovery, maintenance, and propagation of building blocks based on virus operation. We prepare a group of individuals and a group of viruses. The group of individuals searches for solutions and the group of viruses searches for building blocks. These searches are done based on the symbiotic relation of both groups. Also, our GA has two types of virus evaluation technique. In one type, each virus is evaluated by the difference of the fitness of an individual before and after virus infection. In the other type, all viruses are evaluated by the difference of the fitness of an individual before and after infection of all viruses. We applied the proposed GA to a minimum value search problem using a test function with some local minima far from the optimum. Finally, we also discuss the search behavior in the proposed GA based on each virus evaluation technique. © Fuji Technology Press Ltd. Creative Commons CC BY-ND: This is an Open Access article distributed under the terms of the Creative Commons Attribution-NoDerivatives 4.0 International License (http://***/licenses/by-nd/4.0/).

关键词： Genetic algorithms

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Surface Structure of Soy Protein and Mungbean Protein Film Observed Using Atomic Force Microscopy

Surface Structure of Soy Protein and Mungbean Protein Film O...

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国际农业工程大会

作者： Keo INTABON Wimolrat CHEAPPIMOLCHAI Takaaki MAEKAWA Institute of Agricultural and Forestry Engineering University of Tsukuba 305-8577 Japan.Assistant Professor Doctoral Program Institute of Agricultural Science University of Tsukuba 1-1-1 Tennodai Tsukuba 305-8577 Japan Institute of Agricultural and Forestry Engineering University of Tsukuba 305-8577 Japan.professor

The relationship between surface structure and permeability property of soy protein and mungbean protein film was carried out using atomic force microscopy (AFM). The increasing of film porosity resulting in increasing of water vapor permeability (WVP) of films. AFM images showed that the surface of soy protein film was rougher than that of mungbean protein. Films with high glycerol concentration has a rough surface because of the lower evaporation

关键词： Soy protein film, Mungbean protein film, Atomic force microscopy (AFM), Film surface structure

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