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41st Annual Conference of the IEEE Industrial Electronics Society, IECON 2015

作者： Georgoulas, George Karvelis, Petros Stylios, Chrysostomos D. Tsoumas, Ioannis P. Antonino-Daviu, Jose Alfonso Corral-Hernandez, Jesus Climente-Alarcon, Vicente Nikolakopoulos, George Department of Computer Engineering TEI of Epirus Arta Greece Larges Drives Products RandD Department Siemens Industry Sector - Drive Technologies Nuremberg Germany Instituto de Ingeniería Energética Universitat Politècnica de València Valencia Spain Department of Electrical Engineering and Automation Aalto University P. O. Box 13000 AaltoFI-00076 Finland Computer Science Electrical and Space Engineering Dept. Lulea University of Technology Lulea Sweden

ISBN: (纸本)9781479917624

Implementation of unsupervised induction motor condition monitoring systems has drawn an increasing attention recently among motor drives manufacturers. In the case of soft-starters the possibility of incorporating fault detection features to their conventional functions provides an added value to those elements. Design and development of advanced algorithms that are able to automatically detect and alert about possible failures without requiring continuous human inspection is a challenging research goal. In this paper, an algorithm for the automatic detection of rotor damages in induction motors in the case of soft starting is proposed. The twofold approach relies, first, on the application of a time-frequency transform to the starting current signal and, second, on a pattern recognition stage based on the treatment of the time-frequency representation as a symbolic sequence. The innovation of this work is the implementation of the proposed approach for the automatic detection of rotor cage faults in soft-started motors. The experimental results prove the usefulness of the approach for the automatic detection of such faults and its potential for possible future implementation in soft-started machines. © 2015 IEEE.

关键词： Induction motors

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26th Annual Computational Neuroscience Meeting (CNS*2017): Part 3 Antwerp, Belgium. 15-20 July 2017 Abstracts

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BMC NEUROscience 2017年第SUPPL 1期18卷 95-176页

作者： [Anonymous] Department of Neuroscience Yale University New Haven CT 06520 USA Department Physiology & Pharmacology SUNY Downstate Brooklyn NY 11203 USA NYU School of Engineering 6 MetroTech Center Brooklyn NY 11201 USA Departament de Matemàtica Aplicada Universitat Politècnica de Catalunya Barcelona 08028 Spain Institut de Neurobiologie de la Méditerrannée (INMED) INSERM UMR901 Aix-Marseille Univ Marseille France Center of Neural Science New York University New York NY USA Aix-Marseille Univ INSERM INS Inst Neurosci Syst Marseille France Laboratoire de Physique Théorique et Modélisation CNRS UMR 8089 Université de Cergy-Pontoise 95300 Cergy-Pontoise Cedex France Department of Mathematics and Computer Science ENSAT Abdelmalek Essaadi’s University Tangier Morocco Laboratory of Natural Computation Department of Information and Electrical Engineering and Applied Mathematics University of Salerno 84084 Fisciano SA Italy Department of Medicine University of Salerno 84083 Lancusi SA Italy Dipartimento di Fisica Università degli Studi Aldo Moro Bari and INFN Sezione Di Bari Italy Data Analysis Department Ghent University Ghent Belgium Coma Science Group University of Liège Liège Belgium Cruces Hospital and Ikerbasque Research Center Bilbao Spain BIOtech Department of Industrial Engineering University of Trento and IRCS-PAT FBK 38010 Trento Italy Department of Data Analysis Ghent University Ghent 9000 Belgium The Wellcome Trust Centre for Neuroimaging University College London London WC1N 3BG UK Department of Electronic Engineering NED University of Engineering and Technology Karachi Pakistan Blue Brain Project École Polytechnique Fédérale de Lausanne Lausanne Switzerland Departement of Mathematics Swansea University Swansea Wales UK Laboratory for Topology and Neuroscience at the Brain Mind Institute École polytechnique fédérale de Lausanne Lausanne Switzerland Institute of Mathematics University of Aberdeen Aberdeen Scotland UK Department of Integrativ

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26th Annual Computational Neuroscience Meeting (CNS*2017) of the Organization for Computational Neuroscience Antwerp, Belgium, July 15-20, 2017

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BMC NEUROscience 2017年第SUPPL 1期18卷 59-59页

作者： [Anonymous] Indiana University Purdue University Indianapolis Indianapolis IN 46032 USA Stark Neurosciences Research Institute Indiana University School of Medicine Indianapolis IN 46032 USA Department of Mathematics East Carolina University Greenville NC 27858 USA Jülich Supercomputing Centre Forschungszentrum Jülich 52425 Jülich Germany Future Systems Swiss National Supercomputing Centre 8092 Zurich Switzerland User Engagement and Support Swiss National Supercomputing Centre 6900 Lugano Switzerland Institut de Neurosciences des Systèmes Aix Marseille Univ 13005 Marseille France Simulation Lab Neuroscience Forschungszentrum Jülich Jülich Germany Department of Experimental Psychology Ghent University 9000 Ghent Belgium Donders Center for Cognitive Neuroimaging Radboud University 6525HR Nijmegen The Netherlands Department of Electrical Computer and Energy Engineering University of Colorado Boulder CO 80309 USA Department of Neurosurgery Johns Hopkins School of Medicine Baltimore MD 21287 USA Department of Neurology Johns Hopkins School of Medicine Baltimore MD 21287 USA Department of Otolaryngology Johns Hopkins School of Medicine Baltimore MD 21287 USA INSERM U968 Paris France Sorbonne Universités UPMC University Paris 06 UMR_S 968 Institut de la Vision Paris France CNRS UMR_7210 Paris France Department of Computer Architecture and Technology University of Granada (CITIC) Granada Spain Sorbonne Universités UPMC Univ Paris 06 INSERM CNRS Institut de la Vision Paris France Department of Adaptive Machine Systems Osaka University Osaka Japan Department of Computer Science University of Cergy-Pontoise Cergy-Pontoise France Department of Physics and Astronomy College of Charleston Charleston SC 29424 USA School of Physics Faculty of Science University of Sydney Sydney NSW 2006 Australia Center of Excellence for Integrative Brain Function Australian Research Council Sydney Australia Max Planck Institute for Human Cognitive and Brain Sciences Saxony Lei

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Space QUEST mission proposal: Experimentally testing decoherence due to gravity

arXiv

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arXiv 2017年

作者： Joshi, Siddarth Koduru Pienaar, Jacques Ralph, Timothy C. Cacciapuoti, Luigi McCutcheon, Will Rarity, John Giggenbach, Dirk Lim, Jin Gyu Makarov, Vadim Fuentes, Ivette Scheidl, Thomas Beckert, Erik Bourennane, Mohamed Bruschi, David Edward Cabello, Adan Capmany, Jose Carrasco-Casado, Alberto Diamanti, Eleni Dusek, Miloslav Elser, Dominique Gulinatti, Angelo Hadfield, Robert H. Jennewein, Thomas Kaltenbaek, Rainer Krainak, Michael A. Lo, Hoi-Kwong Marquardt, Christoph Milburn, Gerard Peev, Momtchil Poppe, Andreas Pruneri, Valerio Renner, Renato Salomon, Christophe Skaar, Johannes Solomos, Nikolaos Stipčević, Mario Torres, Juan P. Toyoshima, Morio Villoresi, Paolo Walmsley, Ian Weihs, Gregor Weinfurter, Harald Zeilinger, Anton Zukowski, Marek Ursin, Rupert Institute for Quantum Optics and Quantum Information Austrian Academy of Sciences Boltzmanngasse 3 ViennaA-1090 Austria Centre for Quantum Computation & Communication Technology Department of Physics University of Queensland St LuciaQLD4072 Australia European Space Agency Keplerlaan 1 - P.O. Box 299 AG Noordwijk ZH2200 Netherlands Department of Electrical and Electronic Engineering University of Bristol Merchant Venturers Building Woodland Road BristolBS8 1UB United Kingdom German Aerospace Center Institute of Communications and Navigation Muenchner Strasse 20 Wessling82234 Germany Institute for Quantum Computing Department of Electrical and Computer Engineering University of Waterloo WaterlooONN2L 3G1 Canada Institute for Quantum Computing Department of Physics and Astronomy University of Waterloo WaterlooONN2L 3G1 Canada Precision Engineering Department Fraunhofer IOF Albert-Einstein-Straße 7 Jena07745 Germany Physics department Stockholm University Albanova universitetscentrum Universitetsvägen 10 Stockholm114 18 Sweden York Centre for Quantum Technologies Department of Physics University of York HeslingtonYO10 5DD United Kingdom University of Seville SevillaE-41012 Spain iTEAM Research Institute Universitat Politcnica de Valencia Valencia46022 Spain 4-2-1 Nukui-Kitamachi Koganei Tokyo184-8795 Japan CNRS Universite Pierre et Marie Curie Paris75005 France Department of Optics Faculty of Science Palacky University 17. Iistopadu 12 Olomouc772 00 Czech Republic Max Planck Institute for the Science of Light Bldg. 24 Günther-Scharowsky Str. 1 ErlangenD-91058 Germany Piazza Leonardo da Vinci 32 Milano20133 Italy School of Engineering University of Glasgow GlasgowG12 8LT United Kingdom Vienna Center of Quantum Science and Technology Faculty of Physics University of Vienna Boltzmanngasse 5 ViennaA-1090 Austria NASA Goddard Space Flight Center GreenbeltMD20771 United States Center for Quantum Information and Quantum Con

Models of quantum systems on curved space-times lack sufficient experimental verification. Some speculative theories suggest that quantum properties, such as entanglement, may exhibit entirely different behavior to purely classical systems. By measuring this effect or lack thereof, we can test the hypotheses behind several such models. For instance, as predicted by Ralph and coworkers [T C Ralph, G J Milburn, and T Downes, Phys. Rev. A, 79(2):22121, 2009;T C Ralph and J Pienaar, New Journal of Physics, 16(8):85008, 2014], a bipartite entangled system could decohere if each particle traversed through a different gravitational field gradient. We propose to study this effect in a ground to space uplink scenario. We extend the above theoretical predictions of Ralph and coworkers and discuss the scientific consequences of detecting/failing to detect the predicted gravitational decoherence. We present a detailed mission design of the European Space Agency's (ESA) Space QUEST (Space - Quantum Entanglement Space Test) mission, and study the feasibility of the mission scheme. Copyright © 2017, The Authors. All rights reserved.

关键词： Quantum entanglement

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Symbolic time series analysis of the soft starting transient in induction machines

Symbolic time series analysis of the soft starting transient...

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IEEE International Conference on Industrial Technology (ICIT)

作者： Petros Karvelis George Georgoulas Chrysostomos D Stylios Ioannis P. Tsoumas Jose Alfonso Antonino-Daviu Jesús Corral-Hernández Vicente Climente-Alarcón George Nikolakopoulos Dept. of Computer Engineering TEI of Epirus Arta Greece Dept. of Computer Engineering TEI of Epirus Arta Greece Larges Drives Products R&D Department Siemens Industry Sector-Drive Technologies Nuremberg Germany Instituto de Ingeniería Energética Universitat Politècnica de València Valencia Spain Department of Electrical Engineering and Automation Aalto University Finalnd Computer Science Luleå University of Technology Luleå Sweden

ISBN: (纸本)9781479978014

Induction motors are in the heart of almost every production line especially due to their robustness under harsh environments. Nevertheless, even induction machines are prone to faults. Among them, the faults related to the breakage of rotor bars have received special attention by the research community with a number of methods proposed both for the case of steady state as well as for transient operation. For the latter, methods relying on the analysis of the start-up transient have proven to be able to effectively isolate the faulty component that is created by the asymmetry caused by the bar breakage. However, very little work has been done concerning the soft starting of induction machines. In this work, preliminary results of the application of a symbolic time series technique for the analysis of the transient, when the motor is controlled by a soft starter, will be presented and experimentally evaluated.

关键词： Bars Time series analysis Rotors Induction motors Transient analysis Principal component analysis Harmonic analysis

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Dynamic CMOS Incrementers-cum-Decrementers Based on Least Significant Zero Bit Principle

Dynamic CMOS Incrementers-cum-Decrementers Based on Least Si...

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International Conference on Mathematics and computers in sciences and in Industry (MCSI)

作者： P. Balasubramanian N.E. Mastorakis Department of Computer Science and Engineering Anna University Chennai Tamil Nadu India Sector of Electrical Engineering and Computer Science Hellenic Naval Academy Piraeus Greece

The novel design of a 8-bit decision module that forms the heart of a dynamic CMOS incrementer-cum-decrementer circuit is presented in this work. The new 8-bit decision module is designed on the basis of identifying least significant zero bit (LSZB) in the binary input stream contrary to identification of least significant one bit (LSOB), as is the case with existing approaches, to perform increment-cum-decrement operations. Further, an original cascading architecture has been proposed for building larger size incrementers-cum-decrementers based on the LSZB principle. SPICE simulations reveal that a 32-bit incrementer-cum-decrementer implemented using the proposed LSZB principle dissipates 58.6% less power than its counterpart designs based on the LSOB approach.

关键词： MOSFET Clocks CMOS integrated circuits Logic gates Power dissipation Equations Synchronization

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Utilizing nitrogen-vacancy centers to measure oscillating magnetic fields

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Physical Review A 2014年第4期90卷 042104-042104页

作者： Adam Zaman Chaudhry []Department of Electrical and Computer Engineering National University of Singapore 4 Engineering Drive 3 Singapore 117583 and School of Science & Engineering Lahore University of Management Sciences (LUMS) Opposite Sector U D.H.A Lahore 54792 Pakistan

We show how nitrogen-vacancy centers can be used to determine the amplitude, phase, and frequency of unknown weak monochromatic and multichromatic oscillating magnetic fields using only the periodic dynamical decoupling and Carr-Purcell-Meiboom-Gill sequences. The effect of decoherence on the measurement of the magnetic field parameters is explicitly analyzed, and we take into account the fact that different pulse sequences suppress decoherence to different extents. Since the sensitivity increases with increasing sensing time while it decreases due to decoherence and limited photon detection efficiency, we use the Fisher information matrix in order to optimize the number of pulses that should be used.

关键词： NITROGEN analysis ELECTRON-deficient compounds MAGNETIC fields DECOHERENCE (Quantum mechanics) PHOTON detectors FISHER information

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Wavelength tunable selectively intermixed quantum well

Wavelength tunable selectively intermixed quantum well

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CLEO: QELS_Fundamental science, CLEO:QELS FS 2013

作者： Zakariya, Abdullah J. LiKamWa, Patrick CREOL College of Optics and Photonics United States Department of Electrical Engineering and Computer Science University of Central Florida 4000 Central Florida Blvd. Orlando FL 32816 United States Information Technology and Communication Sector MOI P.O.Box 1250 Safat 71655 Kuwait

We demonstrate a monolithic Fabry-Pérot laser in which the wavelength is tuned by electrically steering the laser beam over a gain medium consisting of three laterally adjacent selectively intermixed quantum well... 详细信息

ISBN: (纸本)9781557529725

关键词： Semiconductor quantum wells

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Peak Voltage Measurements Using Standard Sphere Gap Method

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Advances in electrical engineering 2014年第1期2014卷

作者： Constantin Ungureanu Lăcrămioara Mihaela Nemțoi Department of Electrotechnics Faculty of Electrical Engineering and Computer Science 13 University Street 720229 Suceava Romaniausv.ro Department of Telematics and Electronics in Transports Faculty of Transports Politehnica University 313 Splaiul Independentei Sector 6 060042 Bucharest Romaniaupb.ro

The paper presents a measurement system of peak value of high voltage (H.V.) using 150 mm diameter sphere gap, disposed in vertical position. Experimental breakdown results have been compared with standard values at atmospheric reference conditions STC (20°C, 101.3 kPa, or 760 mmHg). The main experimental and theoretical characteristics are presented.

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SUPPORTING DISTRESS SIGNALS OVER LOW EARTH ORBIT MOBILE SATELLITE SYSTEMS FOR EMERGENCY INFORMATION ACQUISITION

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International Journal of Information Acquisition 2014年第3N04期9卷

作者： GAMAL A. HUSSEIN MOSTAFA A. NOFAL MOAWAD I. DESSOUKY OSAMA ALY ORABY WALEED AL-HANAFY ABD EL-NASER A. MOHAMED IBRAHIM M. ELDOKANY EL-SAYED M. EL-RABAIE SALEH A. ALSHEBEILI FATHI E. ABD EL-SAMIE Engineering Sector of Broadcast Egyptian Radio and Television Union Egypt Department of Electronics and Electrical Communications Engineering Faculty of Electronic Engineering Menoufia University Menouf 32952 Egypt Computer Engineering Department College of Computer Science and Information Systems Taif University Kingdom of Saudi Arabia Department of Electrical Engineering Faculty of Engineering Albaha University Kingdom of Saudi Arabia Electrical Engineering Department KACST-TIC in Radio Frequency and Photonics for the e-Society (RFTONICS) King Saud University Kingdom of Saudi Arabia KACST-TIC in Radio Frequency and Photonics for the e-Society (RFTONICS) King Saud University Kingdom of Saudi Arabia

Low earth orbit (LEO) satellite systems allow a broad range of services to be provided using small, lightweight, cellular-like portable telephones. Exploiting LEO satellites to support distress signals for aircrafts, ships and international travelers is explored in the current paper. A multi-service priority-oriented algorithm is proposed for handling voice, data and emergency signals over LEO satellites. The emergency signal is privileged with service priority so that rescue operation can be carried out as soon as possible. The priority mechanism includes channel reservation as well as joining a queue if no free channel is available as long as the request is roaming in the handover area. In addition, a simplified but efficient approach is suggested for locating the object of an imminent danger situation. As LEO satellites are non-geostationary, the visible period of each spot-beam is small. Consequently, a teletraffic model, that accommodates the mobility of spot-beams as well as the resulting handover rate, is developed in order to gauge the performance of the proposed algorithm. Numerical results for access denying and service-dropping rates are presented for nominal system parameters.

关键词： LEO satellite-cellular telephone-distress signal-voice-data-emergency

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