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1st International Conference on Engineering and Applied sciences Optimization, OPT-i 2014

作者： Korta, Jakub Uhl, Tadeusz AGH University of Science and Technology Faculty of Mechanical Engineering and Robotics Department of Robotics and Mechatronics al. A. Mickiewicza 30 Krakow30-059 Poland

ISBN: (纸本)9789609999465

This article describes a multi-material optimization of a mid-size city bus, for the NVH and weight improvements. Structural modifications were applied to the vehicle by material and geometry alterations. Due to the contradictions between the objective functions, it was a multi-objective problem, which was solved using a genetic algorithm in conjunction with the response surface method. The curb weight of the analyzed vehicle was kept at the lowest possible level, which due to anticorrelation between this and the other objectives was not a trival task. Additionally, the paper demonstrates a global approach to the vehicle vibroacoustics, by analyzing the whole considered frequency spectrum at once. This can be attained by using a generalized mean estimator, capable of interpretation of the spectral signal in a desirable manner. It has been shown that the presented optimization tool is suitable for an early stage (conceptual) design, when most of the structural parameters can be modified.

关键词： Multiobjective optimization

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Tunable interdigital transducer for lamb waves 7

Tunable interdigital transducer for lamb waves

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7th European Workshop on Structural Health Monitoring, EWSHM 2014

作者： Maka, Micha Rosiek, Mateusz Martowicz, Adam Stepinski, Tadeusz Uhl, Tadeusz AGH University of Science and Technology Faculty of Mechanical Engineering and Robotics Department of Robotics and Mechatronics al. A. Mickiewicza 30 Krakow30-059 Poland

In this paper a novel concept of a tunable transducer for exciting and sensing Lamb waves is presented. The proposed transducer is an extension of the Interdigital Transducer (IDT), which main advantage is mode selectivity. In the proposed transducer, further referred to as the Tunable IDT (T-IDT), comb electrodes with fixed pitch are replaced by a series of densely distributed discrete electrodes. They can be easily interconnected in different configurations to match required wavelength, which makes possible matching to different wavelengths without a need of physical changes of the electrodes layout. In order to verify the properties of the T-IDT, numerical simulations and experimental tests were performed and their results compared to the ones obtained with a traditional IDT. Both the numerical and experimental results show that the T-IDT generates beampatterns similar to those generated by the conventional IDT. The preliminary results presented in the paper prove that the proposed T-IDT can be easily tuned to various wave modes and show the performance similar to the one observed for the conventional IDT. Copyright © Inria (2014).

关键词： Surface waves

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Three-dimensional magnetic assembly of alginate microfibers using microfluidic “printing” method

Three-dimensional magnetic assembly of alginate microfibers ...

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IEEE International Conference on robotics and Automation (ICRA)

作者： Tao Sun Qiang Huang Qing Shi Huaping Wang Masahiro Nakajima Toshio Fukuda Intelligent Robotics Institute Beijing Institute of Technology Haidian District Beijing CHINA Department of Micro-Nano Systems Engineering Nagoya University Chikusa-ku Nagoya JAPAN Faculty of Science and Engineering Meijo University Tenpaku-ku Nagoya JAPAN

ISBN: (纸本)9781479969241

Due to the poor controllability in hydrogels, Hydrogels-based assembly to form larger 3D complex shapes is still a big challenge. In this paper, we have reported a novel “bottom-up” method to fabricate three-dimensional (3D) magnetic alginate microfibers (MAMs) assemblies with complex shapes. Specifically, Alginate microfibers encapsulating Fe 3 O 4 magnetic nanoparticles (MNs) and fibroblasts (NIH/3T3) have been spun using microfluidic method with “pinch-off” scheme. Experimental results show that the MAMs can respond quickly to the magnetic field, enabling their enhanced controllability. The magnetic assembly system is constructed by PDMS microfluidic device, 3D supporting model adhered on the bottom surface of dish filled with deionized water and magnet. The microfluidic “printing“ and magnetic deposition in magnetic assembly process are experimentally demonstrated, respectively. Because of magnetic field, the complex assembly shapes can be fabricated just by moving the microfluidic device in a plane. To match well with the shape of supporting model and to keep a stable assembly structure, the secondary cross-linking method is employed. From the LIVE/DEAD assay, cells can survive well during the magnetic assembly process.

关键词： Assembly Microfluidics Printing Shape Spinning Magnetic resonance imaging Three-dimensional displays

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EU project MORPH: Current status after 3 years of cooperation under and above water

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IFAC-PapersOnLine 2015年第2期28卷 119-124页

作者： Kalwa, J. Pascoal, A. Ridao, P. Birk, A. Glotzbach, T. Brignone, L. Bibuli, M. Alves, J. Silva, M.C. ATLAS ELEKTRONIK GmbH Bremen Germany Institute of Robotics Instituto Superior Técnico Lisbon Portugal Universiat de Girona Girona Spain Jacobs Universität Bremen Bremen Germany Ilmenau University of Technology Faculty of Computer Science and Automation Ilmenau Germany Institut Français de Recherche pour l'Exploitation de la Mer La Seyne sur Mer France Consiglio Nazionale delle Ricerche Istituto di Studi Sui Sistemi Intelligenti per l'Automazion Genova Italy NATO Undersea Research Centre La Spezia Italy Instituto do Mar Morta Portugal

The MORPH project (FP 7, 2012-2016) advances a novel concept of an underwater robotic system composed of a number of spatially separated mobile robot-modules, carrying complementary resources. Instead of being physically coupled, the modules are connected via communication links that allow a limited flow of information among them. Without rigid links, the so called Morph Supra-Vehicle can reconfigure itself and adapt in response to the shape of the terrain, including walls with negative slope. The MORPH concept requires new concepts in a number of technological fields. Examples are adaptive sensor placement for perception and navigation or environmental modeling in complex environments. As the project enters its final year the basic developments have been achieved. It is still a huge effort to create a system out of components which can be perceived as a supra-vehicle. This paper focuses on a presentation of the current state. © 2015, IFAC (International Federation of Automatic Control) Hosting by Elsevier Ltd. All rights reserved.

关键词： Robots Architecture Control engineering Navigation robotics Vehicles Adaptive behaviour Adaptive sensors Complex environments Current status Environmental model Negative slope Robotic vehicles Underwater robotics

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Dynamic and control analysis of a smart rotor by combining the ansys and matlab software

Dynamic and control analysis of a smart rotor by combining t...

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作者： Cupial, Piotr Koziol, Mateusz Department of Process Control Faculty of Mechanical Engineering and Robotics AGH University of Science and Technology Krakow Poland

This text describes the development of an efficient approach to the analysis of the dynamics of a rotor with a structure that contains active elements. Since the Ansys software, according to our experience, has limitations in the area of rotor dynamics and due to the fact that the use of control algorithms is difficult to implement in Ansys, a new analysis approach to the study of smart rotors has been created and verified. After the generation of the geometry and building the model in Ansys, the finite-element model matrices are imported into Matlab. The space state model is created next so that the reliable control software available in Matlab can be used. The verification of this analysis method has been done by comparison with the results obtained using an analytical model of a smart Jeffcott rotor with and without control. © JVE INTERNATIONAL LTD.

关键词： Finite element method

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“Olá, my name is Ana”: A study on Brazilians interacting with a receptionist robot

“Olá, my name is Ana”: A study on Brazilians interacting ...

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International Conference on Advanced robotics (ICAR)

作者： Gabriele Trovato Josué G. Ramos Helio Azevedo Artemis Moroni Silvia Magossi Hiroyuki Ishii Reid Simmons Atsuo Takanishi Faculty of Science and Engineering Waseda University Tokyo Japan Center for Information Technology Renato Archer Campinas Brazil Research Institute of Science and Engineering Waseda University Tokyo Japan Robotics Institute Carnegie Mellon University Pittsburgh USA Department of Modern Mechanical Engineering Waseda University Tokyo Japan

In the near future, robots are expected to perform assistive tasks and do different kind of jobs. In particular, humanoid robots are possible candidates for being used as helpers in activities of daily living. One possible employment is working as a receptionist, providing useful indications to visitors in a public office. The design of how robots could look like is a matter of growing importance, as it is important to create a look that poses no uncanny valley effects on the human user and that is appropriate to potentially serve in different job areas in human society. In this paper we want to describe the study on anthropomorphism of a receptionist robot. We invited Brazilian people with different education levels to interact with two variations of a receptionist robot, different in physical appearance as well as in the sound of the voice. In one case, the appearance was a conversational agent made with computer graphics, in the other, a real humanoid robot. Results gathered from surveys and comments of the participants provide useful directions to design a receptionist robot and insights on the effect of digital divide on anthropomorphism.

关键词： Anthropomorphism Humanoid robots Education Sociology Statistics Semantics

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Active reduction of sound and vibrations in the aquatic environment with one side loaded circular plate 7

Active reduction of sound and vibrations in the aquatic envi...

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7th Forum Acusticum, FA 2014

作者： Iwański, Dariusz Wiciak, Jerzy Faculty of Mechanical Engineering and Robotics AGH University of Science and Technology 30 Mickiewicza Av. Krakow30-059 Poland

ISBN: (纸本)9788361402282

The present paper presents results of active control of structural noise in fluid. In order to investigate the issue a specially laboratory stand was prepared-A sealed rectangular water tank filled up with water. One side of the walls contains specially prepared hole for the installation of thin circular plate. The other side of the steel plate contains eight rectangular piezoelements used both as sensors and actuators. One was used as actuator to generate vibrations of the plate, i.e. a sine wave with constant frequency, phase and amplitude. After numerical calculations and some experiments using Design of Experiments methodology-rest of piezoelements were classified as sensors and actuators for all investigated frequencies to reduce vibrations of the plate and so the sound pressure level in fluid, *** and air. Resonant frequencies of circular sidedly fluid-loaded plate were measured using swept sine technique on the laboratory stand. Eleven first resonant frequencies were taken under consideration. Amplitude and phase of reduction actuators signal was set and controlled by appropriate algorithm. Results were compared with numerical calculations. Also analytical model was presented for fluid-loaded interaction of the plate with piezoelements. Final results reveal reduction of sound pressure level in fluid by more than 25 dB.

关键词： Natural frequencies

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Corrigendum to “Using a three-axis accelerometer to identify and classify sheep behaviour at pasture” [Appl. Anim. Behav. Sci. 181 (2016) 91–99]

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Applied Animal Behaviour science 2016年 183卷 104-104页

作者： F.A.P. Alvarenga I. Borges L. Palkovič J. Rodina V.H. Oddy R.C. Dobos Federal University of Minas Gerais—UFMG Animal Science Department Belo Horizonte Minas Gerais Brazil NSW Department of Primary Industries Beef Industry Centre of Excellence Armidale NSW Australia AerobTec s.r.o. Ilkovičova 3 841 04 Bratislava Slovakia Institute of Robotics and Cybernetics Faculty of Electrical Engineering and Information Technology Slovak University of Technology Bratislava Slovakia Precision Agriculture Research Group School of Science & Technology University of New England Armidale NSW Australia

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Opening remarks

2016 International Conference on Advances in Human Machine I...

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2016 International Conference on Advances in Human Machine Interaction, HMI 2016 2016年

作者： Nagaraja, Ch. Swamy, J. Nagendra Rajendra, J. Khan, M.S. Vishwanath Reddy, D.S. Manjunath, N. Dillmann, Ruediger Tarn, Tzyh Jong Zhao, Qianchuan Ammi, Mehdi Zuberek, Wlodek M. Sandhu, P.S. Patthira Newman, K. De Silva Liyanage, Chandratilak Hassan, Sohair Aly Aly Sun, Kien Wen Rahman, Md. Moshiur Ordoño, E. Evangelista Sharma, R.K. Mishra, Preeti Chandel, B.S. Singla, Ekta Petric, Tadej Zhong, Yu Jiglar, Janson Alemzadeh, Kazem Asokan, T. Tripathi, Animesh Tripathi, Manoj Ram, Swaminath Shrma, M.K. Panday, P.N. Kumar, Devendra Hinchey, Mike Stilman, Boris Suraj, Zbigniew Pal, Sankar K. Sasi, Sreela Rajan, Deepu Marshall, Roger G. Abraham, Ajith Peter S, David Paul, Vargheese Gopakumar, V. Dustdar, Schahram Soto, Sebastián Ventura Rausch, Andreas Angelis, Lefteris Nelson, Andrew L. Botzheim, Janos Bernardino, Heder Soares Zboril, Frantisek Ane, Bernadetta Kwintiana Maeda, Toshiyuki Sakalauskas, Virgilijus Hann, Garenth Lim King Samek, Jan Romero Salguero, José Raúl Varghese, Kuruvilla Kriksciuniene, Dalia Mathew, Jimson Reif, Wolfgang Mauri, Giancarlo Cabrerizo Lorite, Francisco Javier Özcan, Ender Cho, Sung-Bae Paily, Roy P. Rezankova, Hana Tudjarov, Boris Hong, Wei-Chiang De Oliveira, José Valente Flores Romero, Juan Jose Oskouei, Rozita Jamili Cicchetti, Antonio Roy, Chanchal Segura, Sergio Samuel, C. Mallet, Frédéric Mernik, Marjan Punnekkat, Sasikumar Waseemulla, A. Sri Devaraj Urs Educational Trust Bangalore India R. L. Jalappa Institute of Technology Doddaballapur Bangalore India Humanoids and Intelligence Systems Lab Kalsruhe Germany Electrical and Systems Engineering Washington University in St. Louis United States Deputy Director of Center for Intelligent and Networked Systems Department of Automation Tsinghua University Beijing China Department of Computer Science CNRS/LIMSI Lab AMI Group France Memorial University St. John'sNL Canada RBIT and Bio-Technology India LR University Thailand University of Colorado at Boulder Boulder United States Faculty of Science University of Brunei Brunei University of Kuala Lumpur Malaysia National Chiao Tung University Taiwan EPR Centre Bangladesh Mapua Institute of Technology Philippines ARO CWC Lucknow India Mpec Kanpur India DSC DBS Kanpu India Indian Institute of Technology Ropar India Jozaf Stefan Institute Department of Automation Biocyernetics and Robotics Ljubljana Slovenia Robotics Institute Carnegie Mellon University Pittsburgh United States Faculty of Engineering University of Bristol United Kingdom Department of Engineering Design Indian Institute of Technology Madras India Lucknow Uni Lucknow India CSJM Uni Kanpur India UPPCB Lucknow India PCB Roorkee India Awadh Uni Faijabad India Agra Uni Agra India Lero University of Limerick Ireland University of Colorado Denver United States University of Rzeszow Poland Indian Statistical Institute Kolkata India Gannon University PA United States Nanyang Technical University Singapore Singapore Plymouth State University NH United States MIR Labs United States Cochin University of Science and Technology India State Project Facilitation Unit TEQIP Kerala India Technical University of Vienna Austria University of Cordoba Spain Clausthal University of Technology Germany Aristotle University of Thessaloniki Greece Androtics LLC TucsonAZ United States Tokyo Metropolitan University Japan Federal Unive

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Microscopic image segmentation using quantum inspired evolutionary algorithm

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Journal of Advanced Microscopy Research 2015年第3期10卷 164-173页

作者： Choudhury, Alokeparna Samanta, Sourav Dey, Nilanjan Ashour, Amira S. Balas-Timar, Dana Gospodinov, Mitko Gospodinova, Evgeniya Department of Computer Science and Engineering University Institute of Technology Burdwan West Bengal713104 India Department of Information Technology Techno India College of Technology Kolkata700156 India Department of Electronics and Electrical Communications Engineering Faculty of Engineering Tanta University 31527 Egypt Aurel Vlaicu University of Arad Arad310130 Romania Institute of Systems Engineering and Robotics Bulgarian Academy of Sciences Sofia1113 Bulgaria

Image segmentation has became an important research area for various medical imaging fields. The automated complex analytical process makes it a huge time consuming procedure. The intention to microscopic images segmentation is to extract the cellular, nuclear or tissue components. This is considered a challenging process due to the large variations of features of these components (size, shape, orientation or texture). In this paper, a novel approach to deal with rats' microscopic hippocampus images segmentation based on the hybrid evolutionary strategy (ES) is proposed. The proposed work used the quantum-inspired evolutionary algorithm (QIEA) to establish the optimal level for the multilevel thresholding. The QIEA depends on both quantum and evolutionary computing. An intensive works for automatic hippocampus segmentation is performed on a database of 179 images. The acquired results have demonstrated that the proposed algorithm provides superior segmentation with eight levels (L = 8), that offer the highest correlation between the original and the corresponding segmented image. © Copyright 2015 American Scientific Publishers All rights reserved.

关键词： Evolutionary algorithms

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