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作者： Lin, Peng Ren, Wei Song, Yongduan School of Electronic and Information Engineering Xi'An Jiaotong University China State Key Laboratory of Networking and Switching Technology Beijing University of Posts and Telecommunications Beijing China Department of Electrical and Computer Engineering University of California Riverside United States Key Laboratory of Dependable Service Computing Cyber Physical Society Ministry of Education Chongqing University China School of Automation Chongqing University China

In this paper, we study a distributed optimization problem using a subgradient projection algorithm for multi-agent systems subject to nonidentical constraints and communication delays under local communication. Here the agents capable of communicating with their local neighbors are constrained to remain in possibly different closed convex sets and optimize a global objective function composed of a sum of local objective functions, each of which is known to only one agent. First, we consider the case of fixed graphs and show that distributed optimization might not be achieved on general strongly connected directed graphs. Instead, the agents optimize a weighted sum of the local objective functions. Then we consider the case of switching graphs and show that distributed optimization can be achieved when the adjacency matrices are doubly stochastic and the union of the directed graphs is strongly connected among each time interval of a certain bounded length. Furthermore, we consider the case of communication delays, where the delays are mutually independent. It is shown that the distributed optimization problem can be solved by introducing additional delays to the subgradient projection algorithm and the communication delays can be arbitrarily bounded. Finally, numerical examples are included to show the obtained theoretical results. © 2015 Elsevier Ltd. All rights reserved.

关键词： Multi agent systems

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Publisher Correction: The Scales Project, a cross-national dataset on the interpretation of thermal perception scales

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Scientific data 2020年第1期7卷 11页

作者： Marcel Schweiker Amar Abdul-Zahra Maíra André Farah Al-Atrash Hanan Al-Khatri Rea Risky Alprianti Hayder Alsaad Rucha Amin Eleni Ampatzi Alpha Yacob Arsano Montazami Azadeh Elie Azar Bannazadeh Bahareh Amina Batagarawa Susanne Becker Carolina Buonocore Bin Cao Joon-Ho Choi Chungyoon Chun Hein Daanen Siti Aisyah Damiati Lyrian Daniel Renata De Vecchi Shivraj Dhaka Samuel Domínguez-Amarillo Edyta Dudkiewicz Lakshmi Prabha Edappilly Jesica Fernández-Agüera Mireille Folkerts Arjan Frijns Gabriel Gaona Vishal Garg Stephanie Gauthier Shahla Ghaffari Jabbari Djamila Harimi Runa T Hellwig Gesche M Huebner Quan Jin Mina Jowkar Renate Kania Jungsoo Kim Nelson King Boris Kingma M Donny Koerniawan Jakub Kolarik Shailendra Kumar Alison Kwok Roberto Lamberts Marta Laska M C Jeffrey Lee Yoonhee Lee Vanessa Lindermayr Mohammadbagher Mahaki Udochukwu Marcel-Okafor Laura Marín-Restrepo Anna Marquardsen Francesco Martellotta Jyotirmay Mathur Gráinne McGill Isabel Mino-Rodriguez Di Mou Bassam Moujalled Mia Nakajima Edward Ng Marcellinus Okafor Mark Olweny Wanlu Ouyang Ana Ligia Papst de Abreu Alexis Pérez-Fargallo Indrika Rajapaksha Greici Ramos Saif Rashid Christoph F Reinhart Ma Isabel Rivera Mazyar Salmanzadeh Karin Schakib-Ekbatan Stefano Schiavon Salman Shooshtarian Masanori Shukuya Veronica Soebarto Mohammad Tahsildoost Federico Tartarini Despoina Teli Priyam Tewari Samar Thapa Maureen Trebilcock Jörg Trojan Ruqayyatu B Tukur Conrad Voelker Yeung Yam Liu Yang Gabriela Zapata-Lancaster Yongchao Zhai Yingxin Zhu Zahra Sadat Zomorodian Building Science Group Karlsruhe Institute of Technology Englerstr. 7 76131 Karlsruhe Germany. marcel.schweiker@kit.edu. WIN-Kolleg Thermal comfort and pain Heidelberg Academy of Sciences and Humanities Karlstr. 4 69117 Heidelberg Germany. marcel.schweiker@kit.edu. Mechanical Engineering Department University of Technology Iraq Al sinaea 10066 Baghdad Iraq. CTC/Department of Civil Engineering Federal University of Santa Catarina Rua João Pio Duarte Silva s/n. Córrego Grande 88.040-901 Florianópolis SC Brazil. School of Architecture and Built Environment German Jordanian University Darat Othman Bdeir 11180 Amman Jordan. Civil and Architectural Engineering Department Sultan Qaboos University Al-Khod P.O. Box: 33 PC: 123 Muscat Oman. Laboratory of Building Technology Department of Architecture Institut Teknologi Bandung Ganesha 10 40132 Bandung Indonesia. Department of Building Physics Bauhaus-University Weimar Coudraystr. 11A 99423 Weimar Germany. Energy & Climate Change Group Faculty of Engineering & Physical Sciences University of Southampton University Road SO17 1BJ Southampton United Kingdom. Welsh School of Architecture Cardiff University King Edward VII Avenue CF10 3NB Cardiff United Kingdom. Department of Architecture Massachusetts Institute of Technology Massachusetts Ave 02139 Cambridge United States of America. Faculty of Engineering Environment and Computing BNE Research Centre Coventry University Gulson road CV1 2JH Coventry United Kingdom. Industrial and Systems Engineering Khalifa University Masdar Campus Building 1B 54224 Abu Dhabi United Arab Emirates. Architecture University of Tehran Kish International Campus Niyayesh St. Mirmohanna Blvd 79416-55665 Kish Iran. Department of Architecture Ahmadu Bello University Zaria Nigeria Samaru Zaria Nigeria. WIN-Kolleg Thermal comfort and pain Heidelberg Academy of Sciences and Humanities Karlstr. 4 69117 Heidelberg Germany. Department of Cognitive and Clinical Neurosci

An amendment to this paper has been published and can be accessed via a link at the top of the paper.

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Cluster synchronization for networks of generic linear systems and nonlinear oscillators via intermittent pinning control

Cluster synchronization for networks of generic linear syste...

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第28届中国控制与决策会议

作者： Jiahu Qin Qichao Ma Huijun Gao Wei Xing Zheng Department of Automation University of Science and Technology of China Research Institute of Intelligent Control and Systems Harbin Institute of Technology School of Computing Engineering and MathematicsWestern Sydney University

ISBN: (纸本)9781467397155

This paper is concerned with applying intermittent pinning controllers to synchronization of interacting clusters of linearly coupled heterogeneous linear systems and nonlinear oscillators under general coupling *** cluster synchronization is analyzed via a unified approach to convergence *** key idea of the work is based on the observation that the given cluster synchronization patterns can be realized if the underlying topology of each extended cluster has a directed spanning tree and an algebraic condition is *** structural conditions are developed to ensure the related algebraic ***,for linear systems,the algebraic condition can be guaranteed if the strength of the intra-cluster couplings are sufficiently strong and meanwhile the work time of the pinning controller in each period is sufficiently long;for nonlinear oscillators,the work time of the pinning controller can be arbitrarily short as long as the intra-cluster coupling strength for each cluster is sufficiently ***,both the lower bounds for such coupling strengths and length of the work time of the pinning controller in each period are explicitly specified.

关键词： Cluster synchronization intermittent pinning control heterogeneous systems generic linear systems nonlinear oscillators

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Managing big data by directed graph node similarity

Managing big data by directed graph node similarity

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International Symposium on Computational Intelligence and Informatics

作者： Endre Pap Marko Jocić Anikó Szakál Djordje Obradović Zora Konjović Faculty of Technical Sciences Department of Computing and Automation Novi Sad Serbia Obuda University Institute of Intelligent Engineering Systems Budapest Hungary Singidunum University Belgrade Serbia

ISBN: (纸本)9781509039104

This paper shows a novel algorithm based on the theory of fuzzy sets for discovering similar nodes in very large directed graphs (millions of nodes with billions of connections), if provided with a sample of representative nodes that are highly affiliated with some feature. This approach is practically verified on Twitter social network case study to discover influential Twitter users in the field of science.

关键词： Twitter Fuzzy sets Facebook Computational intelligence Informatics Big data

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Model of three level neutral point clamped converter (NPC) for grid connected photovoltaic systems 38

Model of three level neutral point clamped converter (NPC) f...

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38th International Convention on Information and Communication Technology, Electronics and Microelectronics, MIPRO 2015

作者： Novak, Mateja Šunde, Viktor Jakopović, Željko Faculty of Electrical Engineering and Computing Department of Electrical Machines Drives and Automation Zagreb Croatia

ISBN: (纸本)9789532330854

Photovoltaic modules as direct converters of solar energy into electrical energy are typically connected to the power grid trough standard two level converters. A photovoltaics system can be connected to the power grid if it can satisfy the IEEE standardized conditions set by the power grid operator. The conditions include limitations of THD factor and current harmonics. Multilevel converters which have a lower THD factor than two level converters can satisfy these conditions and in the same time work at higher switching frequencies lowering the losses and the size of the output filter. The model implemented in Simulink® MATLAB consists of a photovoltaic array, boost DC-DC converter with MPPT control and three level neutral point clamped converter connected to the power grid. The simulation results are presented, analyzed and compared to the standard model with a two level converter to validate the benefits of the usage of multilevel converters for grid connected photovoltaic systems. © 2015 MIPRO.

关键词： Solar energy

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Non-GPS Positioning Sensor Network in Social Manufacturing

Non-GPS Positioning Sensor Network in Social Manufacturing

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2016年IEEE/INFORMS服务运筹、物流与信息化国际会议

作者： Akatsuki Ryu Arja Mehtala Timo Nyberg Mark Nelson Gang Xiong Department of Industrial Engineering and Management Aalto University Nokia Technologies Cloud Computing Center Chinese Academy of sciences Peace Innovation Lab Stanford University Institute of Automation Chinese Academy of sciences

The Global Positioning System(GPS) technology has been widely used in many applications. However, GPS operation is very limited indoors. While people are spending most of the time indoor. Different solutions are used in indoor positioning and location based service. Indoor positioning based systems are increasingly used in manufacturing. Four instance indoor positioning systems are used for the assets tracking and human trajectory. Tracking mass amount of people Will generate huge big data, manufacturing companies as well as individuals can take advantage of this traffic flow data to pursue environmental, economic and social sustainable manufacturing *** this paper, we describe one method of tracking massive amount of people and provide them and visual tracking information by using one of the indoor positioning Technologies HAIP provided by Nokia. We present empirical results of experiments of using the HAIP system.

关键词： Indoor sensing technology location based services big data

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Minimum loss control of interior permanent magnet traction motor

Minimum loss control of interior permanent magnet traction m...

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IEEE International Electric Machines and Drives Conference, IEMDC 2015

作者： Jercic, Tino Zarko, Damir Matusko, Jadranko Martinovic, Marijan University of Zagreb Faculty of Electrical Engineering and Computing Department of Electrical Machines Drives and Automation Zagreb Croatia

ISBN: (纸本)9781479979417

This paper presents a new formulation for minimization of copper and iron losses in interior permanent magnet for the purpose of minimum loss control. Motor losses are formulated based on electromagnetic torque to total torque ratio resulting in simplified expression of minimal loss condition which can be easily solved online. The flux-weakening method which adjusts electromagnetic to total torque ratio in order to achieve field weakening operation is also proposed. © 2015 IEEE.

关键词： electric vehicles energy efficiency function approximation minimization Newton method optimization permanent magnet machines temperature dependence variable speed drives

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Effects of dead time and semiconductor device voltage drops of output voltage of multilevel converters 38

Effects of dead time and semiconductor device voltage drops ...

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38th International Convention on Information and Communication Technology, Electronics and Microelectronics, MIPRO 2015

作者： Mrčela, Ivan Šunde, Viktor Kovačić, Marinko University of Zagreb Faculty of Electrical Engineering and Computing Department of Electrical Machines Drives and Automation Zagreb Croatia

ISBN: (纸本)9789532330854

This paper presents the results of a study of the effect of dead time and finite semiconductor device voltage drops on the output voltage of three-level neutral point clamped power converters. Results showed that finite voltage drops and dead time caused a DC voltage shift, and lowered the base harmonic amplitude of output voltage. These effects were analysed and the results confirmed via simulation models. Voltage drops effect was confirmed using Ansys Simplorer, while the dead time effect was confirmed using Matlab. The results showed that the output voltage of the three-level neutral point clamped converters was dependant on the listed parameters. A method is proposed to suppress the negative effects these parameters have on converter voltage. © 2015 MIPRO.

关键词： Power converters

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A multi-label classification approach for the detection of broken bars and mixed eccentricity faults using the start-up transient

A multi-label classification approach for the detection of b...

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IEEE International Conference on Industrial Informatics (INDIN)

作者： George Georgoulas Vicente Climente-Alarcon Jose A. Antonino-Daviu Chrysostomos D. Stylios Antero Arkkio George Nikolakopoulos Control Engineering Group University of Technology Luleå Sweden Department of Electrical Engineering and Automation Aalto University Aalto Finland Instituto Tecnologico de la Energia Universitat Politècnica de València Valencia Spain Department of Computer Engineering Laboratory of Knowledge and Intelligent Computing Kostakioi Greece

ISBN: (纸本)9781509028719

In this article a data driven approach for the classification of simultaneously occurring faults in an induction motor is presented. The problem is treated as a multi-label classification problem with each label corresponding to one specific fault, using the power-set approach. The faulty conditions examined, include the existence of a broken bar fault and the presence of mixed eccentricity with various degrees of static and dynamic eccentricity. For the feature extraction stage, the time-frequency representation, resulting from the application of the short time Fourier transform of the start-up current is exploited. The proposed approach is validated using simulation data with promising results.

关键词： Bars Time-frequency analysis Induction motors Transient analysis Principal component analysis Fault diagnosis Classification algorithms

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A survey on the feasibility of surface EMG in facial pacing

A survey on the feasibility of surface EMG in facial pacing

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Annual International Conference of the IEEE engineering in Medicine and Biology Society (EMBC)

作者： Ville Rantanen Mirja Ilves Antti Vehkaoja Anton Kontunen Jani Lylykangas Eeva Mäkelä Markus Rautiainen Veikko Surakka Jukka Lekkala Department of Automation Science and Engineering Tampere University of Technology Tampere Finland Research Group for Emotions Sociality and Computing University of Tampere Tampere Finland Department of Clinical Neurophysiology Medical Imaging Centre Tampere Finland Department of Otorhinolaryngology University of Tampere Tampere Finland

A survey on the feasibility of surface electromyography (EMG) measurements in facial pacing is presented. Pacing for unilateral facial paralysis consists of the measurement of activity from the healthy side of the face and functional electrical stimulation to reanimate the paralyzed one. The goal of this study is to evaluate the feasibility of surface EMG as a measurement method to detect muscle activations and to determine their intensities. Prior work is discussed, and results from experiments where 12 participants carried out a set of facial movements are presented. EMG was registered from zygomaticus major (smile), orbicularis oris (lip pucker), orbicularis oculi (eye blink), corrugator supercilii (frown), and masseter (chew). Most important facial functions that are limited due to the paralysis are blinking, smiling, and puckering. With majority of the participants, crosstalk between the measured EMG channels was found to be acceptably small to be able to pace smiling and puckering based on detecting their contraction intensities from the healthy side. However, pacing blinking based on orbicularis oculi EMG measurement does not seem possible due to crosstalk from other muscles, but the electro-oculographic (EOG) signals that couple to the same measurement channel could help to detect eye blinks and trigger stimuli. Futhermore, masseter greatly disturbs EMG measurement of most facial muscles, which needs to be addressed in the pacing system to avoid falsely interpreting its activity as the activity of another muscle.

关键词： Electromyography Muscles Atmospheric measurements Particle measurements Crosstalk Electrodes Extraterrestrial measurements

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