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International Conference on Methods and Models in Automation and robotics (MMAR)

作者： Manar Lashin Ahmed Ramadan Hossam S. Abbass Ahmed Abo-Ismail Mechatronics and Robotics Eng. Dept. Egypt-Japan University of Science and Technology Egypt Computers and Automatic Control Dept. Tanta University Tanta Egypt Electrical Engineering Dept. Assuit University Assuit Egypt

In this paper, the stabilization problem of loaded double inverted pendulum using an optimized state feedback sliding mode control is investigated. ADAMS/Matlab co-simulation environment is used for building a virtual nonlinear model for loaded double inverted pendulum system and the state feedback sliding mode control law is designed for stabilizing the system. Mismatched uncertainties represented by payload variations is considered. Genetic Algorithms are used to optimize the parameters of the sliding mode controller based on a performance index containing the sum of squared errors. The proposed control scheme can significantly suppress chattering effect and improves the performance of the system against uncertainties. Simulation results show the effectiveness of the approach and the robustness of the system against payload changes.

关键词： Mathematical model Payloads Uncertainty MATLAB Robustness Optimization Vectors

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Study of the Friction Effect on the Stability of a Three-Rigid Link Object Manipulated by Two Cooperative Robot Arms

Study of the Friction Effect on the Stability of a Three-Rig...

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IEEE International Conference on Systems, Man, and Cybernetics

作者： Omar Mehrez Zakarya Zyada Yoshikazu Hayakawa Ahmed Abo-Ismail Tatsuya Suzuki Shigeyuki Hosoe Mechatronics and Robotics Dept. Egypt-Japan Univ. of Science and Technology (E-JUST) Mechanical Power Engineering Dept. Tanta Univ. Mechanical Science and Engineering Dept. Nagoya Univ. RIKEN-TRI Collaboration Center for Human Interactive Robot Research

ISBN: (纸本)9781479938414

This work presents a study of the frictional effect on the stability of a three-rigid link object manipulated by two cooperative robot arms in a plane. It is supposed that the three-rigid link object interacts with the two robot arms at multi contact points to perform the nonprehensile manipulation of the object. The object is figured out in a way such that one of the arms is in contact with two links of the object, while the other arm is free to slide along the third link. The effect of changing frictional forces at the contact points as well as their directions on the stability of the manipulated object is to be explored by defining the system constraints. A definition of what is called the "Stability Margin" is obtained. For the same orientation of the object links, the Stability Margin is a region of equilibrium contact points between the sliding arm and the corresponding object link where the robot arm could be placed in without dropping the object. Later, an experimental system consisting of a three-rigid link object and a two planar robot arms manipulation system is equipped to verify the concept.

关键词： Frictional contact Nonprehensile manipulation Multi-link object manipulation Cooperative robot arms

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25th Annual Computational Neuroscience Meeting CNS-2016, Seogwipo City, South Korea, July 2-7, 2016 Abstracts

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BMC NEUROSCIENCE 2016年第1期17卷 1-112页

作者： [Anonymous] Computational Neurobiology Laboratory The Salk Institute for Biological Studies San Diego USA UNIC CNRS Gif sur Yvette France The European Institute for Theoretical Neuroscience (EITN) Paris France ATR Computational Neuroscience Laboratories Kyoto Japan Krembil Research Institute University Health Network Toronto Canada Department of Physiology University of Toronto Toronto Canada Department of Medicine (Neurology) University of Toronto Toronto Canada Department of Physics University of New Hampshire Durham USA Department of Neurophysiology Nencki Institute of Experimental Biology Warsaw Poland Department of Theory Wigner Research Centre for Physics of the Hungarian Academy of Sciences Budapest Hungary Department of Mathematical Sciences KAIST Daejoen Republic of Korea Department of Mathematics University of Houston Houston USA Department of Biochemistry & Cell Biology and Institute of Biosciences and Bioengineering Rice University Houston USA Department of Biology and Biochemistry University of Houston Houston USA Grupo de Neurocomputación Biológica Dpto. de Ingeniería Informática Escuela Politécnica Superior Universidad Autónoma de Madrid Madrid Spain Department of Biological Sciences University of Southern California Los Angeles USA Center for Neuroscience Korea Institute of Science and Technology Seoul South Korea Department of Neurology Albert Einstein College of Medicine Bronx USA Center for Neuroscience KIST Seoul South Korea Department of Neuroscience University of Science and Technology Daejon South Korea Systems Neuroscience Group QIMR Berghofer Medical Research Institute Herston Australia Department of Psychology Yonsei University Seoul South Korea Department of Psychiatry Kyung Hee University Hospital at Gangdong Seoul South Korea Department of Psychiatry Veterans Administration Boston Healthcare System and Harvard Medical School Brockton USA Department of Electrical and Electronic Engineering The University of Melbourne Parkvil

A1 Functional advantages of cell-type heterogeneity in neural circuits Tatyana O. Sharpee A2 Mesoscopic modeling of propagating waves in visual cortex Alain Destexhe A3 Dynamics and biomarkers of mental disorders Mitsuo Kawato F1 Precise recruitment of spiking output at theta frequencies requires dendritic h-channels in multi-compartment models of oriens-lacunosum/moleculare hippocampal interneurons Vladislav Sekulić, Frances K. Skinner F2 Kernel methods in reconstruction of current sources from extracellular potentials for single cells and the whole brains Daniel K. Wójcik, Chaitanya Chintaluri, Dorottya Cserpán, Zoltán Somogyvári F3 The synchronized periods depend on intracellular transcriptional repression mechanisms in circadian clocks. Jae Kyoung Kim, Zachary P. Kilpatrick, Matthew R. Bennett, Kresimir Josić O1 Assessing irregularity and coordination of spiking-bursting rhythms in central pattern generators Irene Elices, David Arroyo, Rafael Levi, Francisco B. Rodriguez, Pablo Varona O2 Regulation of top-down processing by cortically-projecting parvalbumin positive neurons in basal forebrain Eunjin Hwang, Bowon Kim, Hio-Been Han, Tae Kim, James T. McKenna, Ritchie E. Brown, Robert W. McCarley, Jee Hyun Choi O3 Modeling auditory stream segregation, build-up and bistability James Rankin, Pamela Osborn Popp, John Rinzel O4 Strong competition between tonotopic neural ensembles explains pitch-related dynamics of auditory cortex evoked fields Alejandro Tabas, André Rupp, Emili Balaguer-Ballester O5 A simple model of retinal response to multi-electrode stimulation Matias I. Maturana, David B. Grayden, Shaun L. Cloherty, Tatiana Kameneva, Michael R. Ibbotson, Hamish Meffin O6 Noise correlations in V4 area correlate with behavioral performance in visual discrimination task Veronika Koren, Timm Lochmann, Valentin Dragoi, Klaus Obermayer O7 Input-location dependent gain modulation in cerebellar nucleus neurons Maria Psarrou, Maria Schilstra, Neil Davey, Benjamin Torben-Ni

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Development of an Elbow-Forearm Interlock Joint Mechanism Toward an Exoskeleton for Patients with Essential Tremor

Development of an Elbow-Forearm Interlock Joint Mechanism To...

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IEEE/RSJ International Conference on Intelligent Robots and Systems

作者： Yuya Matsumoto Motoyuki Amemiya Daisuke Kaneishi Yasutaka Nakashima Masatoshi Seki Takeshi Ando Yo Kobayashi Hiroshi Iijima Masanori Nagaoka Masakatsu G. Fujie Graduate School of Creative Science and Engineering Waseda University Tokyo 169-8555 Japan Graduate School of Advanced Science and Engineering Waseda University Tokyo Japan Graduate School of Creative Science and Engineering Waseda University Tokyo Japan Graduate School of Advanced Science and Engineering Waseda University Japan MONOZUKURI Mechatronics Laboratory KIKUCHI SEISAKUSHO Co. Ltd. Tokyo Japan Robotics Development Center Corporate Manufacturing Innovation Division Panasonic Corporation Osaka Japan Faculty of Science and Engineering Waseda University Japan Rehabilitation Engineering Dept. Yokohama Rehabilitation Foundation Japan Department of Rehabilitation Medicine Juntendo University Graduate School Japan

ISBN: (纸本)9781479969357

An essential tremor (ET) is a disorder that causes involuntary oscillations. ET patients face serious difficulties in performing such daily living activities as eating, drinking, and writing. We have been developing an exoskeleton to suppress tremors and support the eating movements of ET patients. The objective of this study is to propose a passive mechanism that prevents the appearance of the compensatory shoulder movement without using an actuator. The basic concept of this study is developing the mechanism to coordinate two DoF movement of elbow joint. Two DoF movement of elbow joint is constrained to passive one DoF by our wearable robot. The mechanism of our robot and constrain mechanism is optimally designed to reduce the compensatory movement during eating movement. To develop such mechanism, we first analysed the eating movement to derive the required specification of the mechanism. Then, we proposed a prototype based on the requirement. Finally, we evaluate the effect of the prototype to reduce the compensatory movement. It is confirmed that the proposed prototype had great effect on the reduction. As a future work, we will optimize the structure and the material of the mechanism to reduce the weight of the mechanism.

关键词： Essential Tremor Elbow Joint Movement of shoulder PROTOTYPE Wearable Robot Tremor compensated INTERLOCKS Patients

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Development of parallel manipulator sit to stand assistive device for elderly people

Development of parallel manipulator sit to stand assistive d...

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2013 IEEE Workshop on Advanced robotics and Its Social Impacts, ARSO 2013

作者： Salah, Omar Asker, Ahmed Fath El-Bab, Ahmed M. R. Assal, Samy M. F. Ramadan, Ahmed A. Sessa, Salvatore Abo-Ismail, Ahmed Egypt-Japan University of Science and Technology New Borg-El-Arab city Alexandria Egypt Mechanical Engineering Department Faculty of Engineering Assiut University Egypt Department of Production Engineering and Mechanical Design Faculty of Engineering Tanta University Alexandria Egypt Computer and Automatic Control Dept. Faculty of Engineering Tanta University Tanta Egypt Mechatronics and Robotics Dept. Egypt-Japan University of Science and Technology Egypt School of Creative Science and Engineering Waseda University Tokyo 168-8480 Japan

ISBN: (纸本)9781479923694

This paper describes a novel mobility assistive device under development in the Egypt-Japan University of Science and Technology (E-JUST). The proposed system can help patients who do not have enough physical strength on the lower limbs during sit to stand due to aging, diseases such as polymyositis and myopathy, and joint replacement surgery complications. It can follow the natural pattern of human motion during sit to stand providing assistance force under the shoulder. The overall device is compact and employees a parallel mechanism which provide more stiffness. Several experiments were carried out in a VICON room to calculate the human motion posture while sit to stand motion in addition estimate the trajectory of the end effector during assisting. Computer simulation was built to verify the performance of the proposed system with the reference trajectory. © 2013 IEEE.

关键词： Mechanisms

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Toward Gesture Controlled Wheelchair: A Proof of Concept Study

Toward Gesture Controlled Wheelchair: A Proof of Concept Stu...

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IEEE International Conference on Rehabilitation robotics

作者： Noriyuki Kawarazaki Dimitar Stefanov Alejandro Israel Barragan Diaz Dept. of Robotics and Mechatronics Kanagawa Institute of Technology Kanagawa Japan Faculty of Engineering Coventry University Coventry U.K

ISBN: (纸本)9781467360210

This study focuses on the early stages of developing and testing an interactive approach for gesture-based wheelchair control that could facilitate the user in various tasks such as cooking and food serving. The proposed method allows a user to hold an object (tray, saucepan, etc) with both hands and to control at the same time the wheelchair direction via changing the position of his/her arms. The wheelchair control system contains an image sensor directed to the user's arms. Sensor signals are processed via an image-recognition algorithm and the calculations for the arm positions are used for the computation of the wheelchair steering signals. Thus, the wheelchair direction depends on the arm positions and the user can control the wheelchair by moving his/her arms. An initial wheelchair prototype, operated by the intentional motions of one hand, was built and was tested by several initial experiments.

关键词： Wheelchair interface Gesture recognition dept. image sensor Natural interaction library

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Modeling and Control of a Novel Hybrid Ground Aerial Robot

Modeling and Control of a Novel Hybrid Ground Aerial Robot

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IEEE International Conference on mechatronics and Automation

作者： Mahmoud Elsamanty Mohamed Fanni Ahmed Ramadan Ahmed Abo-Ismail Mechatronics and Robotics Eng. Dept. Egypt-Japan University of Science and Technology Alexandria Egypt Adjunct Professor at Mechatronics and Robotics Eng. Dept. Egypt-Japan University of Science and Technology. Prod. Eng. & Mechanical Design Dept. Mansoura University Mansoura Egypt. Adjunct Professor at Mechatronics and Robotics Eng. Dept. Egypt-Japan University of Science and Technology. Computers Engineering & Automatic Control Dept. Tanta University Tanta Egypt.

ISBN: (纸本)9781467355599

This paper presents the dynamic modeling and control simulation of a novel robot that combines flying motion and on ground motion into an integrated single robot. The ground motion is based on four wheels configuration that provides more stability. The flying motion is depending on the flying mechanism of quadrotor system. Smart transformation mechanism is developed to switch the robot from the ground motion configuration to the flying motion configuration and vice versa without adding any additional actuators. A manipulator with 3 DOF is added to handle an object during the ground motion and it is useful to hold this object during the flying motion. A CAD model is developed using SOLIDWORKS. The dynamic model of this robot is derived to achieve the eccentricity of the payload, the weight of the eccentric manipulator and managing the variation of the payload in the dynamic model. The derived robot dynamics are highly nonlinear. A controller is designed based on feedback linearization technique to stabilize the robot attitude and altitude. Controlling the horizontal movements' nonholonomic constraints is used to generate the desired trajectories of robot attitudes. Another dynamic model and controller have been established for the transformation mechanism. Finally, the simulation results using MATLAB/SIMULINK show that the controller successfully vanish the eccentric effect and stabilize the robot attitude.

关键词： Flying robot Dynamic Modeling of UA V Feedback Linearization technique Controller design

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Toward multi-stage decoupled visual SLAM system

Toward multi-stage decoupled visual SLAM system

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International Workshop on Robot Sensing (ROSE)

作者： Mohamed H. Merzban Mohamed Abdellatif Hossam Abbas Salvatore Sessa Mechatronics and Robotics Eng. Dept. Egypt-Japan University of Science and Technology Alexandria Egypt Graduate School of Creative Science and Engineering Tokyo Japan

SLAM is defined as simultaneous estimation of mobile robot pose and structure of the surrounding environment Currently, there is a much interest in Visual SLAM, SLAM with a camera as main sensor, because the camera is an ubiquitous and affordable sensor. Camera measurements formed by perspective projection is highly nonlinear with respect to estimated states, leading to complicated nonlinear estimation problem. In this paper, a novel system is proposed that divides the problem into two parts: local and global motion estimation. This division leads to a simple linear estimation system. In the first stage, local motion parameters (acceleration, velocity, angular acceleration and orientation) are estimated in robot local frame. Robot position and the scene map are then estimated in the second stage in global frame as global motion parameters. Map is updated at each camera frame and is represented in a relative way to decouple robot pose from map structure estimation. The new system simplified the map correction to a linear optimization problem. Simulation results showed that the proposed system converges and yields accurate results.

关键词： Robot sensing systems Current measurement Estimation Lead Optimization Cameras

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Cross-cultural study on human-robot greeting interaction: Acceptance and discomfort by Egyptians and Japanese

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Paladyn 2013年第2期4卷 83-93页

作者： Trovato, Gabriele Zecca, Massimiliano Sessa, Salvatore Jamone, Lorenzo Ham, Jaap Hashimoto, Kenji Takanishi, Atsuo Graduate School of Science and Engineering Waseda University #41-304 17 Kikui-cho Shinjuku-ku Tokyo162-0044 Japan Faculty of Science and Engineering Waseda University Humanoid Robotics Institute Waseda University Japan School of Innovative Design Engineering Mechatronics and Robotic Dept. Egypt-Japan University of Science and Technology Borg El Arab Alexandria21934 Egypt Instituto de Sistemas e Robotica Instituto Superior Tecnico Av. Rovisco Pais 1 Lisbon1049-001 Portugal Department of Innovation Sciences Eindhoven University of Technology P.O. Box 513 5600 MB IPO 1.20 Eindhoven Netherlands Faculty of Science and Engineering Waseda University Japan Waseda University Japan

As witnessed in several behavioural studies, a complex relationship exists between people's cultural background and their general acceptance towards robots. However, very few studies have investigated whether a robot's original language and gesture based on certain culture have an impact on the people of the different cultures. The purpose of this work is to provide experimental evidence which supports the idea that humans may accept more easily a robot that can adapt to their specific culture. Indeed, improving acceptance and reducing discomfort is fundamental for future deployment of robots as assistive, health-care or companion devices into a society. We conducted a Human-Robot Interaction experiment both in Egypt and in Japan. Human subjects were engaged in a simulated video conference with robots that were greeting and speaking either in Arabic or in Japanese. The subjects completed a questionnaire assessing their preferences and their emotional state, while their spontaneous reactions were recorded in different ways. The results suggest that Egyptians prefer the Arabic robot, while they feel a sense of discomfort when interacting with the Japanese robot;the opposite is also true for the Japanese. These findings confirm the importance of the localisation of a robot in order to improve human acceptance during social human-robot interaction. © 2018 De Gruyter Open Ltd. All rights reserved.

关键词： Human robot interaction

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Modeling and simulation of novel method of single cell viability detection via electrical measurement using dual nanoprobes

Modeling and simulation of novel method of single cell viabi...

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2012 International Conference on Enabling Science and Nanotechnology, ESciNano 2012

作者： Sulaiman, Abdul Hafiz Mat Ahmad, Mohd Ridzuan Dept. of Mechatronics and Robotics Faculty of Electrical Engineering Universiti Teknologi Malaysia Malaysia Ibnu Sina Institute Universiti Teknologi Malaysia Malaysia

ISBN: (纸本)9781457707988

Cell viability is important in biological studies. The detection of cell viability is simply checking whether the cell is alive or dead. This is important in experiments when cells are placed in a new foreign environment and when cells are being manipulated for testing either mechanically, chemically or electrically. Basically, there are two ways to determine the cell viability, one is through the cell's function for example the metabolism which can be tested by the ability of the cell to produce glucose and the other is through the cells properties like when cells lose their plasma membrane integrity and hence allow any chemicals or other substances to enter the cell [1]. A conventional method is based on the examination of the property of cell membrane integrity by using colorimetric dyes such as tyrapan blue and fluorescent dyes [2] which can change the color of the dead cells. The main drawback with the conventional method is the addition of the chemical agents (i.e. dye) may change the cell physiology [3] due to the chemical interaction and thus having the cell in its original condition for further testing becomes impossible. Furthermore, such methods require time for the cells to incorporate the discrimination chemical. Also these methods lack the capability to produce quantitative cell viability information [1]. Measuring the electrical properties to detect for viable cells overcome some of these limitations. This paper is a continuation and extension of our earlier work [4]. Previously, we experimentally demonstrated a novel method for cell viability detection using dual nanoprobe. Now, by using finite element approach, four more factors, i.e. material types, cross-sectional shapes, opening gaps and penetration dept. of the dual, have been studied. In brief, the dual nanoprobes work by slightly penetrating the cell wall and measure the current that flow in the cells when exposed to a voltage. A detected current shows that a cell is alive. The main advantage

关键词： Physiology

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