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1991 Euromicro Workshop on Real-Time systems, ECRTS 1991

作者： Shirakawa, H. López Gúlliver, R. Inabayashi, S. Nakagawa, T. Dept. of Computer Science and Systems Engineering Faculty of Science and Engineering Ritsumeikan University Kita-ku Kyoto 603 Japan System Sougou Kaihatsu Co. Ltd. 28-23 Hongou 1-choume Bunkyou-ku Tokyo 113 Japan

ISBN: (纸本)0818622105

This paper describes an integrated intelligent monitoring system which is used in industries. This system is integrated by a controller, a real-time operating system, and a real-time expert system. The real-time object-oriented operating system Theta is described first. Secondly an integration of Theta on a VMEbus based controller and the real-time expert system ESPARON for dough mixing monitoring is explained. © 1991 IEEE.

关键词： Expert systems

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High- and low-pitch helical structures of titled chiral lipid bilayers

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AIP Conference Proceedings 1999年第1期469卷 168-169页

作者： Shigeyuki Komura Ou-Yang Zhong-can 1Faculty of Computer Science and Systems Engineering Kyushu Institute of Technology Iizuka 820-8502 Japan 2Institute of Theoretical Physics Academia Sinica P.O. Box 2735 Beijing 100080 China

Shigeyuki Komura, Ou-Yang Zhong-can; High- and low-pitch helical structures of titled chiral lipid bilayers, AIP Conference Proceedings, Volume 469, Issue 1, 15

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Analysis of design activities using EEG signals

Analysis of design activities using EEG signals

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ASME 2010 International Design engineering Technical Conferences and computers and Information in engineering Conference, IDETC/CIE2010

作者： Nguyen, Thanh An Zeng, Yong Concordia Institute for Information Systems Engineering Faculty of Engineering and Computer Science Concordia University 1455 de Maisonneuve West EV07.633 Montreal QC H3G 1M8 Canada

ISBN: (纸本)9780791844137

It plays a significant role in developing of design theory and methodology to understand designer's thinking and cognitive process during design activities. The most dominant method to conduct this kind of study is protocol analysis. However, this method is prone to subjective factors. Therefore, other approaches are emerging, which can measure the brain activities directly. With the advances in technologies, brain scanner and brain recorder systems such as EEG, fMRI, PET have become more affordable. In the present research, we used EEG to record designer's brain electrical signals when s/he was working on a design task. Six channels of the EEG signals were recorded, including Fp1, Fp2, Fz, Cz, Pz, Oz, based on which the power spectral density for each EEG band (delta, theta, alpha and beta) was calculated. The results showed that, for the given design problem, the subject spent more effort in visual thinking during the solution generation than that in solution evaluation. The preliminary success in identifying regularity underlying a single designer's design process through EEG signals lays a foundation for further investigation of designers' general mental efforts during the conceptual design process. Copyright © 2010 by ASME.

关键词： Brain

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Characteristics of Surface EMG During Gait with and Without Power Assistance 20th

Characteristics of Surface EMG During Gait with and Without ...

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20th Congress of the International Ergonomics Association, IEA 2018

作者： Saito, Seiji Muraki, Satoshi Faculty of Computer Science and Systems Engineering Okayama Prefectural University 111 Kuboki Soja-shiOkayama719-1197 Japan Faculty of Design Kyushu University 4-9-1 Shiobaru Minami-kuFukuoka815-8540 Japan

ISBN: (纸本)9783319960883

Technology that assists and extends various functions of human beings will soon be available not only to medical and welfare but also to healthy individuals. This study aimed to characterize surface electromyography (EMG) signals in response to walking assistive equipment. Ten healthy male students walked on an 8-m uphill road (5.8% incline) using an assist walker (RT.2, *** Co., Ltd) under assist and non-assist conditions. The EMG signals were recorded from four muscles (the rectus femoris [RF], biceps femoris, tibialis anterior, and lateral gastrocnemius). During loading response and terminal stance, the percent maximum voluntary isometric contraction (%MVC) peak value for RF was achieved more quickly in the assist condition than in the non-assist condition. However, during loading response and mid-swing, the %MVC peak value of RF was significantly lower in the assist condition than in the non-assist condition. These results indicate that humans alter muscle exertion patterns in specific muscles to adapt to walking assistance;such a change in the muscle exertion pattern may be adapted for smoother walking. © 2019, Springer Nature Switzerland AG.

关键词： Muscle

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A fast and accurate tube diameter visualization method for digestive system medical images

IEEJ Transactions on Electronics, Information and Systems

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IEEJ Transactions on Electronics, Information and systems 2021年第9期141卷 982-991页

作者： Ueda, Mitsuru Kondo, Masafumi Kayano, Isao Sejima, Yoshihiro Yokogawa, Tomoyuki Sato, Yoichiro Sugihara, Yuusaku Matsumoto, Kazuyuki Graduate School of Computer Science and Systems Engineering Okayama Prefectural University 111 Kuboki Soja Okayama719-1197 Japan Faculty of Health Science and Technology Kawasaki University of Medical Welfare 288 Matsushima Kurashiki Okayama701-0193 Japan Faculty of Informatics Kansai University 2-1-1 Ryozenji-cho Osaka Takatsuki569-1095 Japan Department of Gastroenterology Okayama University Hospital 2-5-1 Shikata-cho Kita-ku Okayama700-8558 Japan

Although the tube diameter and stenosis rate are important observations in the diagnosis using medical images of digestive organ, such as digestive systems, the diagnosis is based on the physician’s subjective evaluation. On the other hand, automatic measurement of tube diameters by image processing has been used for blood vessels, which are tubular tissues similar to digestive systems, and it is also possible to visualize the vessel diameter by assigning pseudo-colors according to the length of the vessel. However, it is difficult to apply the existing diameter visualization methods directly to digestive system medical images due to the processing time and accuracy problems because the tubes are large and tortuous, unlike blood vessels. In this paper, we propose a method to measure the tube diameter quickly by dynamically calculating the next featured pixel using the history of the midpoints of the tube diameter line. Furthermore, we derive an approximate curve corresponding to the centerline of the tube from the history of the featured pixels and measure the tube diameter with high accuracy. We applied the proposed method to various types of digestive system medical images and confirmed that the proposed method could accurately measure and visualize the tube diameter along the shape of the tube and reduce the processing time by up to 99%. 2021 The Institute of Electrical Engineers of Japan.

关键词： Pixels

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Molecular-dynamics study on fracutre property of amorphous metal with crystallization

Molecular-dynamics study on fracutre property of amorphous m...

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11th International Conference on Fracture 2005, ICF11

作者： Matsumoto, R. Nakagaki, M. Nakatani, A. Kitagawa, H. Department of Mechanical Information Science and Technology Faculty of Computer Science and Systems Engineering Kyushu Institute of Technology 680-4 Kawazu Iizuka-City Fukuoka 820-8502 Japan Department of Adaptive Machine Systems Graduate School of Engineering Osaka University 2-1 Yamada-Oka Suita-City Osaka 565-0871 Japan Department of Energy and Mechanical Engineering Faculty of Engineering Doshisha University 1-3 Tatara Tsudani Kyotanabe-City Kyoto 610-0394 Japan

ISBN: (纸本)9781617820632

The fracture property of amorphous metal was studied by a large scale molecular dynamics (MD) simulation. The Finnis-Sinclair potential for α-iron was used as an inter-atomic potential. At first, we made a model amorphous metal by melting-rapid quenching simulation. And then a crystal growth simulation in the amorphous was performed. We used circular model, and the cracktip is assumed to be at the center. In order to analyze the crack growth characteristics in an infinite domain, the linear elastic solution of Mode I crack was used as a boundary condition. The periodic boundary condition was used to the thickness direction. The crack opens in similar fashion and it has smooth surfaces during the amorphous state. As it deformed, some clusters of bcc-crystal nucleate around the cracktip and they grow rapidly. The distribution of deformation zones and deformation mechanism are significantly altered. The grains are not deformed while they are relatively small. The emission of dislocations from the cracktip is observed, after the crystal phase covered the crack-tip surfaces. The grain size appeared small in the vicinity of the crack-tip, and becomes gradually large as it separates form the crack-tip.

关键词： Crack tips

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Dual use bicycle path network designing and exploitation environment-Velorouter 28

Dual use bicycle path network designing and exploitation env...

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28th European Modeling and Simulation Symposium, EMSS 2016

作者： Ginters, Egils Baltruks, Mikelis Sakne, Inita Merkuryev, Yuri Faculty of Computer Science and Information Technology Riga Technical University 1 Kalku Street RigaLV-1658 Latvia Sociotechnical Systems Engineering Institute 4 Cesu Street ValmieraLV-4201 Latvia

ISBN: (纸本)9788897999683

One of the types of clean transport is cycling. In order to ensure the successful functioning of an integrated and intermodal urban transport system (Merkuryev, Zenina and Romanovs 2015) cycling has to be one of its natural components. Due to limited funding it is important to understand which bike path network would be more efficient and ensure the greatest possible population transfer from other types of transport to bicycles, because it is impossible to construct bike paths, racks and lease points wherever it would be desirable.

关键词： Bicycles

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Asymptotic-Diffusion Analysis for Retrial Queue with Batch Poisson Input and Multiple Types of Outgoing Calls 22nd

Asymptotic-Diffusion Analysis for Retrial Queue with Batch P...

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22nd International Conference on Distributed and computer and Communication Networks, DCCN 2019

作者： Nazarov, Anatoly Phung-Duc, Tuan Paul, Svetlana Lizura, Olga Institute of Applied Mathematics and Computer Science National Research Tomsk State University 36 Lenina ave. Tomsk634050 Russia Faculty of Engineering Information and Systems University of Tsukuba 1-1-1 Tennodai Ibaraki Tsukuba305-8573 Japan

ISBN: (纸本)9783030366131

In this paper, we consider a retrial queue with batch Poisson input process, arbitrarily distributed service times and arbitrarily distributed number of calls in the batch. Upon arrival, a call from the batch occupies the server if it is idle. The other calls from the batch join the orbit. If the server is busy, all calls from the batch go to the orbit. In the orbit, incoming calls stay for an exponentially distributed random delay and repeat their request for service. Besides incoming calls, the server can also make outgoing calls when idle. We assume that there are several types of outgoing calls in the system. The aim of the current research is to obtain asymptotic probability distribution of the number of incoming calls in the system using an asymptotic-diffusion analysis method. © Springer Nature Switzerland AG 2019.

关键词： Queueing theory

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Multidimensional Central Limit Theorem of the Multiclass M/M/1/1 Retrial Queue 23rd

Multidimensional Central Limit Theorem of the Multiclass M/M...

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23rd International Conference on Distributed computer and Communication Networks, DCCN 2020

作者： Nazarov, Anatoly Phung-Duc, Tuan Izmailova, Yana Institute of Applied Mathematics and Computer Science National Research Tomsk State University 36 Lenina ave. Tomsk634050 Russia Faculty of Engineering Information and Systems University of Tsukuba 1-1-1 Tennodai Ibaraki Tsukuba305-8573 Japan

ISBN: (纸本)9783030664701

In this paper, we consider the multiclass M/M/1/1 retrial queueing system. Customers of each class arrive from outside the system according to a Poisson process. The service times of customers are assumed to be exponentially distributed with the parameter corresponding to the type of the customer. If the server is busy incoming customers join the orbit according to their type and make a delay for an exponentially distributed time. Equations for the characteristic function of the multi-dimensional probability distribution of the numbers of customers in the orbits are obtained. These equations are investigated by method of asymptotic analysis under the long delay condition of customers in the orbits. It is shown that the probability distribution can be approximated by a multi-dimensional Gaussian distribution. Equations are obtained for finding the parameters of this probability distribution. © 2020, Springer Nature Switzerland AG.

关键词： Asymptotic analysis

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Advancing wind energy potential estimation through multidistribution wind speed analysis in coastal Pakistan

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Scientific reports 2025年第1期15卷 18297页

作者： Ghulam Abbas Arshad Ali Zohaib Mushtaq Ateeq Ur Rehman Seada Hussen Habib Hamam Department of Electrical Engineering The University of Lahore Lahore 54000 Pakistan. Faculty of Computer and Information Systems Islamic University of Madinah 42351 Madinah Saudi Arabia. Department of Electrical Electronics and Computer Systems College of Engineering and Technology University of Sargodha Sargodha 40100 Pakistan. School of Computing Gachon University Seongnam-si 13120 Republic of Korea. 202411144@gachon.ac.kr. Department of Electrical Power Adama Science and Technology University 1888 Adama Ethiopia. seada.hussen@aastu.edu.et. Faculty of Engineering Uni de Moncton Moncton NB E1A3E9 Canada. School of Electrical Engineering University of Johannesburg Johannesburg 2006 South Africa. International Institute of Technology and Management (IITG) Av. Grandes Ecoles BP 1989 Libreville Gabon. College of Computer Science and Engineering (Invited Prof.) University of Ha'il 55476 Ha'il Saudi Arabia.

Wind energy is becoming one of the most important elements toward the advancement of sustainable energy systems globally. The assessment of wind energy potential is critical to the optimization of resource application and improvement of technologies. This study focuses on fitting fourteen probability density functions (PDFs) to hourly wind speed data collected from six coastal cities of Pakistan: Gwadar, Jiwani, Karachi, Keti Bandar, Ormara, and Pasni, for the year 2023, measured at 10 m and 50 m heights. These selected distributions are Weibull, Rayleigh, Lognormal, Gamma, Normal, Generalized Extreme Value, Logistic, Nakagami, t Location-Scale, Extreme Value, Inverse Gaussian, Chi-Square, Pearson Type III, and Rician. Four goodness-of-fit (GoF) indices are employed to evaluate the performance of these distributions: root mean square error (RMSE), mean absolute error (MAE), coefficient of determination (R), and chi-squared (χ). These metrics give a clear report on each distribution's aptness to emulate the wind speed information. Observed and computed wind power density (WPD) values are also determined to investigate the application of fitted distribution functions for practical purposes. The inspection of the simulation results shows that GEV, Weibull, Nakagami, and Gamma PDFs proved to be the most promising PDFs for describing wind speed data at 10 m, whereas GEV (predominantly), Weibull, Normal, and Logistic PDFs for wind speed data at 50 m. Further investigation revealed that the GEV distribution consistently exhibited better fitting characteristics, followed closely by Weibull, Nakagami, and Gamma distributions, making them highly suitable for characterizing the wind speed and determining wind energy potential. The extensively used Weibull distribution is not always the first choice. Consequently, the results presented in the paper provide fundamental information about the usage of the resource and energy production for Pakistani coastal wind sites.

关键词： Coastal cities Energy efficiency GEV distribution Optimization PDFs Wind power density Wind speed fitting

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