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International Aegean Conference on electrical Machines and Power Electronics, ACEMP

作者： I. Colak E. Irmak M. Yesilbudak E. Kabalci Gazi Electrical Machines and Energy Control (GEMEC) Group Department of Electrical and Electronics Engineering Faculty of Technology Gazi University Ankara Turkey Gazi Electrical Machines and Energy Control (GEMEC) Group Department of Electronics and Automation Vocational College of Haci Bektas Veli Nevsehir University Nevsehir Turkey

Nowadays, power electronics systems developed need small size, reliable, high quality and efficient switch mode power supplies. However, switch mode power supplies also require determining the operating parameters accurately for achieving intended energy conversion effectively and faultlessly. In this study, an interactive and object oriented parameter determination system was designed for Buck, Boost, Buck-Boost and Cuk converter topologies. Users have used the system interface easily through the interactivity of the system and the user requests have been accomplished quickly through the object oriented programming. Accuracy and reliability of the system have been tested separately for each type of the converter and it has been shown that the performance in the process of determining the parameters of the system is effective and optimum.

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Feature referenced tip localization enhanced by probability motion model for AFM based nanomanipulations

Feature referenced tip localization enhanced by probability ...

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2011 IEEE International Conference on Robotics and Biomimetics, ROBIO 2011

作者： Yuan, Shuai Liu, Lianqing Wang, Zhidong Xi, Ning Wang, Yuechao Dong, Zaili Wang, Zhiyu Wang, Zhibo State Key Laboratory of Robotics Shenyang Institute of Automation Chinese Academy of Sciences Shenyang Liaoning Province 110016 China College of Information and Control Engineering Shenyang Jianzhu University Shenyang 110168 China Graduate School of Chinese Academy of Sciences Beijing 100001 China Department of Electrical and Computer Engineering Michigan State University East Lansing MI 48823 United States Department of Advanced Robotics Chiba Institute of Technology Chiba Japan

ISBN: (纸本)9781457721373

The spatial uncertainties of tip positioning due to the nonlinearity of the PZT scanner and thermal drift hinder the further application of the AFM based nanomanipulation. This paper brings forward feature referenced tip localization enhanced by probability motion model to reduce the spatial uncertainties. An improved motion model is probabilistically built by incorporating the PI model, the creep model and the thermal drift model. For calibrating the accurate model parameters, the statistical experiments are designed and performed. Then the tip position is optimally estimated by combining with a local scan based feature sensing method. The simulation and corresponding experiments are performed to illustrate the validity and feasibility of the calibrated parameters and the algorithm. © 2011 IEEE.

关键词： Micromanipulators

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Introduction

Communications and Control Engineering

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Communications and control engineering 2011年第9780857292551期 1-15页

作者： Sun, Zhendong Ge, Shuzhi Sam College Automation Science & Engineering Center for Control and Optimization South China University of Technology Guangzhou510640 China Department of Electrical and Computer Engineering The National University of Singapore Singapore Singapore Robotics Institue and Institute of Intelligent Systems and Information Technology University of Electronic Science and Technology of China Chengdu China

Chapter 1 briefly introduces the problem formations and the organization of the book. In particular, given a feasible set of switching signals, the concepts of stability and stabilizability are introduced, and the related problems of stability and stabilization are briefly formulated and discussed. Examples and simulations are provided to exhibit the primary features of the problems with various switching mechanisms. © 2011, Springer-Verlag London Limited.

关键词： Stabilization

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Diamond nanopit arrays fabricated by room-temperature nanoimprinting using diamond molds

Diamond nanopit arrays fabricated by room-temperature nanoim...

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2010 MRS Fall Meeting

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

ISBN: (纸本)9781605112596

We have investigated the nanopatterning of chemical vapor deposited (CVD) diamond films in room-temperature nanoimprint lithography (RT-NIL), using a diamond nanodot mold. We have proposed the use of polysiloxane as an electron beam (EB) mask and RT-imprint resist materials. The diamond molds of cylinder dot using the RT-NIL process were fabricated with polysiloxane oxide mask in EB lithography technology. The dot in minimum diameter is 500 nm. The pitch between the dots is 2 μm, and dot has a height of about 600 nm. It was found that the optimum imprinting conditions for the RT-NIL : time from spin-coating to imprinting t1 of 1 min , pressure time t2 of 5 min, imprinting pressure P of 0.5 MPa. The imprint depth obtained after the press under their conditions was 500 nm. We carried out the RT-NIL process for the fabrication of diamond nanopit arrays, using the diamond nanodot molds that we developed. The resulting diamond nanopit arrays with 500 nm-diameter and 200 nm-depth after the electron cyclotron resonance (ECR) oxygen ion beam etching were fabricated. The diameter of diamond nanopit arrays was in good agreement with that of the diamond nanodot mold. © 2011 Materials Research Society.

关键词： Silicones

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Advanced control of quadrotor using eigenaxis rotation

Advanced control of quadrotor using eigenaxis rotation

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IEEE Conference on control technology and Applications (CCTA)

作者： Jaromír Dvořák Marcelo de Lellis Zdeněk Hurák Institute of Information Theory and Automation Academy of Sciences in the Czech Republic Prague Czech Republic Faculty of Electrical Engineering Czech Technical University Prague Czech Republic European SpaceMaster programme CTU FEE Prague Czech Republic Department of Control Engineering Faculty of Electrical Engineering Czech Technical University in Prague Prague Czech Republic

This paper describes a novel strategy for reorientation of an indoor micro quadrotor consisting in combination of an LQ-optimal state-feedback and an eigenaxis rotation. The proposed control scheme is capable of performing large scale maneuvers with no path constraints or singularities while achieving short settling times and high energy efficiency. A suitable interface to the translation controller is introduced.

关键词： Quaternions Actuators Torque Aircraft Mathematical model Angular velocity Atmospheric modeling

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Fabrication of Diamond Nanopit arrays by Room-temperature Curing Nanoimprint Lithography Using Glass-like Carbon Molds

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MRS Online Proceedings Library 2011年第1期1395卷 27-32页

作者： Shuji Kiyohara Chigaya Ito Ippei Ishikawa Hirofumi Takikawa Yoshio Taguchi Yoshinari Sugiyama Yukiko Omata Yuichi Kurashima Electric and Control System Engineering Course Faculty of Advanced Engineering Maizuru National College of Technology Maizuru Kyoto Japan Department of Electrical and Electronic Information Engineering Toyohashi University of Technology Toyohashi Aichi Japan Application and Technical Section ELIONIX INC. Hachioji Tokyo Japan Department of Mechanical System Engineering University of Yamanashi Kofu Yamanashi Japan

We have proposed the use of glass-like carbon (GC), as mold material because the 27-maximum etching selectivity of polysiloxane film against GC, which was approximately six times larger than that of polysiloxane film against chemical vapor deposited (CVD) diamond film. We have investigated the fabrication of diamond nanopit arrays by room-temperature curing nanoimprint lithography (RTC-NIL) using GC mold, as applications to the emitter and the micro-gear. The polysiloxane has in the state of sticky liquid at room-temperature and negative-exposure characteristic. Therefore, the polysiloxane was used as RTC-imprint resist material, and also used as electron beam (EB) resist (oxide mask) material in EB lithography. We have fabricated the cylindrical GC nanodot mold with 500 nm-diameter, 600 nm-height and 2 µm-pitch. We carried out RTC-NIL using GC mold under the following optimum conditions: time from spin-coating to imprint of 1 min, imprinting pressure of 0.5 MPa and imprinting time of 5 min. Then, we have processed the diamond film with an electron cyclotron resonance (ECR) oxygen ion shower. We have fabricated diamond nanopit array with 250 nm-depth and 500 nm-diameter. The diameter of diamond nanopit pattern was in good agreement with that of GC mold. Moreover, the depth of the diamond nanopit patterns fabricated by RTC-NIL using cylindrical GC mold was three times larger than that using conical diamond mold.

关键词： diamond nanostructure ion-beam processing

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Stability analysis of the Acrobot walking with observed geometry

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IFAC Proceedings Volumes 2011年第1期44卷 1046-1051页

作者： Milan Anderle Sergej Čelikovský Czech Technical University in Prague Faculty of Electrical Engineering Department of Control Engineering Technická 2 166 27 Prague Czech Republic Institute of Information Theory and Automation Academy of Sciences of the Czech Republic Pod Vodárenskou věží 4 182 08 Prague Czech Republic (Tel: +420-26605-2018)

Abstract This paper aims to extend of the previously developed analytical design for the Acrobot walking. The corresponding state feedback controller is completed in this paper by an observer to estimate some states of the Acrobot. Both the controller and the observer are based on the partial exact feedback linearization of order 3. The feedback controller and the observer are extended for the tracking of the cyclic walking-like trajectory in order to demonstrate the cyclic Acrobot walking. The cyclic walking-like trajectory starts continuous phase from certain initial conditions, that at the end of the step makes an impact and after the impact it reaches the same initial conditions as at the beginning of the step. This cyclic motion of the Acrobot enable us to prove the stability of the feedback tracking with the observer numericaly by the method of Poincaré mappings. This numerical proof of the stability is supported by numerical simulations showing practically unlimited number of steps of the stable Acrobot walking.

关键词： Walking robots Nonlinear control Stability analysis

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Intelligent sensing of biomedical signals - Lung tumor motion prediction for accurate radiotherapy

Intelligent sensing of biomedical signals - Lung tumor motio...

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IEEE Workshop on Merging Fields of Computational Intelligence and Sensor technology (CompSens)

作者： Kei Ichiji Noriyasu Homma Ivo Bukovsky Makoto Yoshizawa Department of Electrical and Communication Engineering Graduate School of Engineering University of Tohoku Japan Research Division on Advanced Information Technology Cyberscience Center University of Tohoku Japan Faculty of Mechanical Engineering Department of Instrumentation and Control Engineering Czech Technical University Czech Republic

This paper presents a medical application of the intelligent sensing, a new lung tumor motion prediction method for tumor following radiation therapy. An essential core of the method is accurate estimation of complex fluctuation of time-variant periodical nature of lung tumor motion. Such estimation can be achieved by using a novel multiple time-variant seasonal autoregressive integral moving average (TVSARIMA) model in which several windows of different lengths are used to calculate correlation based time-variant periods of the motion. The proposed method provides the resulting prediction as a combination of those based on different window lengths. We have compared unweighted average, multiple regression, and multilayer perceptron (MLP) for the combinations with some conventional predictions by using real data of lung tumor motion. The proposed methods with the multiple regression and MLP based combinations showed high accurate prediction and are superior to the single TVSARIMA based prediction. The best prediction performance was achieved by using the MLP based combination. The average errors were 0.7953 ± 0.0243 mm at 0.5 s ahead and 0.8581±0.0510 mm at 1.0 s ahead predictions, respectively. The results of the proposed method are clinically sufficient and superior to the conventional methods. Thus the proposed TVSARIMA with an appropriate combination method is useful for improving the prediction performance.

关键词： Tumors Lungs Mathematical model Correlation Time series analysis Prediction methods Equations

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Diamond Nanopit Arrays Fabricated by Room-Temperature Nanoimprinting using Diamond Molds

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MRS Online Proceedings Library 2011年第1期1282卷 117-122页

作者： Shuji Kiyohara Masaya Kumagai Yoshio Taguchi Yoshinari Sugiyama Yukiko Omata Yuichi Kurashima Hirofumi Takikawa Advanced Faculty of Electric and Control System Engineering Course Maizuru National College of Technology Maizuru Japan Application and Technical Section ELIONIX INC. 3-7-6 Motoyokoyama Hachioji Tokyo Japan Department of Mechanical System Engineering University of Yamanashi 4-3-11 Takeda Kofu Yamanashi Japan Department of Electrical and Electronic Information Engineering Toyohashi University of Technology Toyohashi Aichi Japan

关键词： diamond ion-beam processing nanoscale

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A delay system method to design of event-triggered control of networked control systems

A delay system method to design of event-triggered control o...

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IEEE Conference on Decision and control

作者： Dong Yue Engang Tian Qing-Long Han Department of Control Science and Engineering and the Key Laboratory of Ministry of Education for Image Processing and Intelligent Control Huazhong University of Science and Technology Hubei 430074 China School of Electrical and Automation Engineering Nanjing Normal University 78 Bancang Street Nanjing 210042 China Center for Intelligent and Networked Systems and the School of Information and Communication Technology Central Queensland University Rockhampton Qld 4702 Australia

ISBN: (纸本)9781612848006

The event-triggered H_(infinity) control design is investigated for networked control systems with uncertainties and transmission delays. A novel event-triggering scheme is proposed, which has some advantages over traditional ones with a continuous detector. Considering the effect of the transmission delay, a delay system model for the analysis is firstly constructed. Then, based on the model and Lyapunov functional method, criteria for the stability with an H_(infinity) norm bound and criteria for the co-design of both the feedback gain and the trigger parameters are derived. In order to solve the feedback gain and the trigger parameters, the linear matrix inequality technique is employed. From the simulation example, it can be concluded that the proposed event-triggering scheme is superior to some other event-triggering schemes in some existing literature.

关键词： feedback gain Networked control systems Event trigger Delay systems Scheme Co-design control systems design control

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