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作者： Shuji, Kiyohara Tomoyuki, Kashiwagi Hirofumi, Takikawa Yuichi, Kurashima Yoshio, Taguchi Yoshinari, Sugiyama Electric and Control System Engineering Course Faculty of Advanced Engineering Maizuru National College of Technology 234 Aza Shiroya Maizuru Kyoto 625-8511 Japan Department of Electrical and Electronic Engineering Toyohashi University of Technology Toyohashi Aichi 441-8580 Japan Department of Mechanical Systems Engineering University of Yamanashi 4-3-11 Takeda Kofu Yamanashi 400-8511 Japan Application and Technical Section ELIONIX INC 3-7-6 Motoyokoyama Hachioji Tokyo 192-0063 Japan

We have investigated the nanofabrication of three-dimensional (3D) chemical vapor deposited (CVD) diamond molds in Electron Cyclotron Resonance (ECR) oxygen ion beam etching technologies using polysiloxane [-R2SiO-]n as an electron beam (EB) mask and a room-temperature (RT)-imprint resist material. The polysiloxane exhibited a negative-exposure characteristic and its sensitivity was 5:5 × 10 -5 C/cm2. The maximum etching selectivity of polysiloxane film against diamond film was 4.7, which was obtained under the following ECR oxygen ion etching conditions: ion energy of 400 eV, ion incidence angle of 0 ° , microwave power of 100 W, gas pressure of 1:4 × 10 -2 Pa and stage temperature of 24 ° C. The diamond molds of cone and tetragonal pyramid dots were fabricated with polysiloxane mask in EB lithography technology using the RT-nanoimprint lithography (NIL) process. The dots are 500, 600, 700, 800, 900 nm in diameter and width respectively. The pitch between the dots is 2 μm, and each dot has a height of about 1 μm. It was found that the optimum imprinting pressure and its depth obtained after the press for 5 min were 0.5 MPa and 0.5 μm respectively. The resulting diameter of each imprinted polysiloxane pattern was in good agreement with that of the 3D-diamond mold. We carried out the RT-NIL process for the fabrication of diamond nanopatterns, using the 3D-diamond molds that we developed. © 2009 The Surface Science Society of Japan.

关键词： Room temperature

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Real-time estimation system of gaze angle based on electrooculogram

Real-time estimation system of gaze angle based on electrooc...

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作者： Zhang, Xiu Sugi, Takenao Wang, Xingyu Nakamura, Masatoshi Department of Automation East China University of Science and Technology 130 St. Meilong Shanghai China Department of Electrical and Electronic Engineering Saga University 1 Honjimachi Saga 840-8502 Japan Department of Advanced Systems Control Engineering Saga University 1 Honjimachi Saga 840-8502 Japan

ISBN: (纸本)9784990288037

This paper describes an online eye-tracking method based on electrooculogram (EOG) to estimate gaze angle. The objective is to use biomedical signal EOG as the input of human-machine interface for both disabled and healthy people. In this study, a quadratic function is applied to set the relation between EOG and gaze angle. The estimated gaze angle is decided by three EOG channels with maximum amplitude after compensating shift and smoothing. The results of real-time estimation showed high accuracy, which makes it possible in many application fields, such as assistance robot control, online word processor and so on. ©ISAROB 2009.

关键词： Eye tracking

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Artificial realization of an adaptive expert knowledge database for automatic sleep stage determination in clinical practice

Artificial realization of an adaptive expert knowledge datab...

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作者： Wang, Bei Sugi, Takenao Kawana, Fusae Wang, Xingyu Nakamura, Masatoshi Department of Automation East China University of Science and Technology Shanghai 200237 China Department of Electrical and Electronic Engineering Saga University Saga 840-8502 Japan Department of Clinical Physiology Toranomon Hospital Tokyo 105-8470 Japan Department of Advanced Systems Control Engineering Saga University Saga 840-8502 Japan

ISBN: (纸本)9784990288037

Artificial realization of an adaptive expert knowledge database for the sleep data from clinics was investigated. The ultimate purpose is to develop automatic sleep stage determination technique for variable cases of sleep data in hospitals. The automatic sleep stage determination algorithm is designed by using probabilistic method based on conditional probability. In order to make algorithm flexible for variable sleep data, an adaptive expert knowledge database is constructed based on a set of fundamental and optional parameters. The parameters, which can improve the accuracy of sleep stage recognition for the training data, are selected. The adaptive expert knowledge database is consisting of the probability density functions of fundamental parameters and selected optional parameters. The overnight sleep data of 4 subjects from Toranomon hospital, Tokyo, Japan were utilized for analysis. The automatic sleep stage determination results were compared with the visual inspection by clinician. Finally, satisfied results of close agreement with the visual inspection were obtained. The developed automatic sleep stage determination by adaptive expert knowledge database can be an effective tool for clinical practice. ©ISAROB 2009.

关键词： Hospitals

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Global Asymptotical Stabilization of Morse-Smale systems Using Weak control-Lyapunov Functions

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SICE Journal of control, Measurement, and System Integration 2009年第1期2卷 43-49页

作者： Gou Nishida Takayuki Tsuzuki Hisakazu Nakamura Yuh Yamashita RIKEN-TRI Collaboration Center for Human-Interactive Robot Research Center Advanced Science Institute RIKEN Department of Electronic and Control Systems Engineering Interdisciplinary Faculty of Science and Engineering Shimane University Systems and Control Lab. Graduate School of Information Science Nara Institute of Science and Technology Division of Systems Science and Informatics Graduate School of Information Science and Technology Hokkaido University

This paper proposes a method of constructing weak control-Lyapunov functions for nonlinear systems by introducing a topological geometric assumption called a Morse-Smale system. A Lyapunov function is one of the most important tools to study stability and stabilization of nonlinear systems. However, a general way of finding Lyapunov functions has not been found yet. First, we confirm there is a weak Lyapunov function for Morse-Smale systems. Next, we define the escapability for singular structures of the weak Lyapunov function. If all singular structures are escapable, then the Morse-Smale system is a globally asymptotically stabilizable one. Finally, we present the method of constructing a set of weak control-Lyapunov functions to achieve global stabilization. The method is described in terms of a recursive sequence of singular structures. We call the sequence a weak Lyapunov filtration.

关键词： nonlinear systems Lyapunov functions iterative modeling and control design

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Prototype multimedia database system for registration of emergency situations

Prototype multimedia database system for registration of eme...

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Signal Processing Algorithms, Architectures, Arrangements and Applications (SPA)

作者： Julian Balcerek Szymon Drgas Adam Dąbrowski Adam Konieczka Department of Computing Science and Management Chair of Control and System Engineering Division of Signal Processing and Electronic Systems Poznan University of Technology Poznan Poland

In this paper a prototype emergency services system is presented, equipped with a multimedia database registering and storing relevant emergency situations in a semi automatic way. In this paper we assume that this database is created exclusively with sound and linguistic material won from emergency telephone calls. The presented system enables conducting speaker recognition experiments. Sources of data, metadata generation, architecture description, searching for results, and database implementation are comprised.

关键词： Manuals World Wide Web Phase locked loops Web pages Graphical user interfaces Encyclopedias

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A Statistical Process control Method for Semiconductor Manufacturing

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SICE Journal of control, Measurement, and System Integration 2009年第4期2卷 246-254页

作者： Tomoaki Kubo Tomomi Ino Kazuhiro Minami Masateru Minami Tetsuya Homma Postgraduate Courses of Functional Control Systems Shibaura Institute of TechnologyCorporate Manufacturing Engineering Center Toshiba Corporation Corporate Manufacturing Engineering Center Toshiba Corporation Oita Operations Toshiba Corporation Department of Electronic Engineering Shibaura Institute of TechnologyResearch Center for Advanced Science and Technology University of Tokyo Department of Electronic Engineering Shibaura Institute of Technology

To maintain stable operation of semiconductor fabrication lines, statistical process control (SPC) methods are recognized to be effective. However, in semiconductor fabrication lines, there exist a huge number of process state signals to be monitored, and these signals contain both normally and non-normally distributed data. Therefore, if we try to apply SPC methods to those signals, we need one which satisfies three requirements: 1) It can deal with both normally distributed data, and non-normally distributed data, 2) It can be set up automatically, 3) It can be easily understood by engineers and technicians. In this paper, we propose a new SPC method which satisfies these three requirements at the same time. This method uses similar rules to the Shewhart chart, but can deal with non-normally distributed data by introducing “effective standard deviations”. Usefulness of this method is demonstrated by comparing false alarm ratios to that of the Shewhart chart method. In the demonstration, we use various kinds of artificially generated data, and real data observed in a chemical vapor deposition (CVD) process tool in a semiconductor fabrication line.

关键词： semiconductor manufacturing SPC control chart Shewhart chart non-normal distribution

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An evaluation of a use case driven requirements analysis using web UI prototype generation tool

An evaluation of a use case driven requirements analysis usi...

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作者： Ogata, Shinpei Matsuura, Saeko Function Control System Graduate School of Engineering Shibaura Institute of Technology 307 Fukasaku Minuma-ku Saitama-City Saitama 337-8570 Japan Department of Electronic Information Systems College of System Engineering and Science Shibaura Institute of Technology 307 Fukasaku Minuma-ku Saitama-City Saitama 337-8570 Japan

ISBN: (纸本)9789604741274

It has been widely acknowledged that a major reason for software project failure is the ambiguous and incomplete customer's requirements. One of their main cautions is the inconsistency between implementation image and specification at an early stage of software development. Therefore, we have been proposed a method to automatically generate a user interface prototype from a requirements analysis model in Unified Modeling Language in order to decrease inconsistency between them for business Web application development. In this paper, we have compared our proposal with traditional use case modeling to evaluate the effectiveness of our proposal.

关键词： Unified Modeling Language

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Sampled Data Errors-in-Variables systems

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IFAC Proceedings Volumes 2009年第10期42卷 1157-1162页

作者： Juan C. Agüero Graham C. Goodwin Torsten Söderström Juan I. Yuz ARC Centre for Complex Dynamics Systems and Control School of Electrical Engineering and Computer Science The University of Newcastle Australia Department of Information Technology Uppsala University Sweden Department of Electronic Engineering Universidad Técnica Federico Santa María Valparaíso Chile

Errors-in-Variables systems have been extensively studied in the literature. We study the impact of sampling on a continuous-time errors-in-variables problem. In particular, we study some approximations of a two dimensional (input-output) continuous-time signal spectrum developed from the sampled-data spectrum. Indeed, some of the paper is tutorial in nature. We also explore the possibility of retrieving the underlying continuous-time system from samples of the input and output signals.

关键词： Sampled-data models Errors-in-Variables Identifiability

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Design and operational concepts for reusable rocket engine

Design and operational concepts for reusable rocket engine

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45th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit

作者： Yoshida, Makoto Takada, Satoshi Naruo, Yoshihiro Niu, Kenichi 1 Koganezawa Kimigaya Kakuda Miyagi 981-1525 Japan Mitsubishi Heavy Industries Co. Ltd. 1200 Higashi-tanaka Komaki Aichi 485-8561 Japan Tribology Technology Section Space Transportation Mission Directorate Japan Department of Space Systems and Astronautics ISAS 3-1-1 Yoshinodai Sagamihara Kanagawa 229-8510 Japan Liquid Rocket Design Section Engine and Control Equipment Engineering Department Japan

ISBN: (纸本)9781563479762

A 40kN rocket engine, Pilot Engine, is being developed in Japan. Pilot Engine development has been initiated relating to the reusable sounding rocket, which is also developed in Japan. This rocket vertically takes off, reaches to 120km altitude, lands vertically on the launch site and is launched again within several days. This rocket will provide observation mission chances with low cost and with quickness utilizing the advantages of reusability. ··This program has been authorized as a technology demonstration phase, and most of the technologies required for the vehicle are to be demonstrated in a few years. In order to realize this rocket concept, the engines installed on the rocket should have features of reusability, long life, deep throttling and health monitoring. ··Those have not yet been established in Japanese rocket engines. ··To solve the engineering subjects about those features, a new design methodology, advanced engine simulations and engineering testing are focused in the Pilot Engine development. Especially in engineering testing, limit condition data is acquired and new diagnostic techniques. Those can be applied utilizing mobility of small size hardware. In this paper, development status of Pilot Engine is mentioned, including fundamental design, engineering tests and operation and maintenance schedule. © 2009 by the American Institute of Aeronautics and Astronautics, Inc.

关键词： Engines

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Automatic adaptive onset detection using an electromyogram with individual difference for control of a meal assistance robot

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Journal of Medical engineering and technology 2009年第4期33卷 322-327页

作者： Zhang, X. Wang, X. Wang, B. Sugi, T. Nakamura, M. Department of Automation East China University of Science and Technology Shanghai 200237 China Department of Electrical and Electronic Engineering Saga University Saga 840-8502 Japan Department of Advanced Systems Control Engineering Saga University Saga 840-8502 Japan

The onset detection of muscle activation is an essential issue in electromyogram (EMG) control. In this paper, a novel approach based on EMG power with automatic adaptive threshold is proposed to address this issue. The purpose is to develop an effective EMG-controlled meal assistance robot. Taking into account the individual difference such as contraction power and resting power, the threshold of onset detection is set with respect to the latest EMG signal. The results show the method is able to adjust automatically to avoid false alarms, and works well when the contraction power varies. Implementation of this EMG-controlled meal assistance robot may provide limb-deficient patients with an effective and comfortable human-machine assistance interface.

关键词： Adaptive control systems

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