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Annual Conference of Industrial Electronics Society

作者： Gregory A. de A. Carlos Cursino B. Jacobina Euzeli C. dos Santos Department of Control and Industrial Process Federal Institute of Alagoas (IFAL) Palmeira dos Índios - 57601-220 - Alagoas - Brazil Post-Graduate Program in Electrical Engineering - PPgEE - Copele Federal University of Campina Grande (UFCG) Campina Grande Paraíba Brazil Department of Electrical and Computer Engineering Purdue School of Engineering and Technology (IUPUI) Indiana USA

This paper presents a shunt active power filter (SAPF) topology, based on the concept of a transformer with open-end winding (OEW), for reactive power and harmonic compensations employed in three-phase four wire (3P4W) systems under balanced and unbalanced conditions. The proposed system uses two independent dc-links and two independent converters series connected through transformers. Complete system control, including PWM technique, is developed and a comparison between the proposed SAPF and conventional one is presented as well. Simulation and experimental results are provided to validate the theoretical approach.

关键词： Topology Pulse width modulation Capacitors Voltage control Optimization Harmonic analysis Power system harmonics

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High-order continuum kinetic method for modeling plasma dynamics in phase space

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AIP Conference Proceedings 2014年第1期1639卷 146-149页

作者： G. V. Vogman P. Colella U. Shumlak Applied Science & Technology Program University of California Berkeley Berkeley CA 94720 USA Computational Research Division Lawrence Berkeley National Laboratory Berkeley CA 94720 USA and Department of Electrical Engineering & Computer Science University of California Berkeley CA 94720 USA Aerospace & Energetic Research Program University of Washington Seattle WA 98195 USA

Continuum methods offer a high-fidelity means of simulating plasma kinetics. While computationally intensive, these methods are advantageous because they can be cast in conservation-law form, are not susceptible to noise, and can be implemented using high-order numerical methods. Advances in continuum method capabilities for modeling kinetic phenomena in plasmas require the development of validation tools in higher dimensional phase space and an ability to handle non-cartesian geometries. To that end, a new benchmark for validating Vlasov-Poisson simulations in 3D (x,vx,vy) is presented [1]. The benchmark is based on the Dory-Guest-Harris instability and is successfully used to validate a continuum finite volume algorithm. To address challenges associated with non-cartesian geometries, unique features of cylindrical phase space coordinates are described. Preliminary results of continuum kinetic simulations in 4D (r,z,vr,vz) phase space are presented.

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Frontispiece: Quantum Crystallography: Current Developments and Future Perspectives

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Chemistry – A European Journal 2018年第43期24卷

作者： Alessandro Genoni Lukas Bučinský Nicolas Claiser Julia Contreras-García Birger Dittrich Paulina M. Dominiak Enrique Espinosa Carlo Gatti Paolo Giannozzi Jean-Michel Gillet Dylan Jayatilaka Piero Macchi Anders Ø. Madsen Lou Massa Chérif F. Matta Kenneth M. Merz Jr. Philip N. H. Nakashima Holger Ott Ulf Ryde Karlheinz Schwarz Marek Sierka Simon Grabowsky Université de Lorraine CNRS Laboratoire LPCT 1 Boulevard Arago F-57078 Metz France Institute of Physical Chemistry and Chemical Physics Slovak University of Technology FCHPT SUT Radlinského 9 SK-812 37 Bratislava Slovakia Université de Lorraine CNRS Laboratoire CRM2 Boulevard des Aiguillettes BP 70239 F-54506 Vandoeuvre-lès-Nancy France Sorbonne Universités UPMC Université Paris 06 CNRS Laboratoire de Chimie Théorique (LCT) 4 Place Jussieu F-75252 Paris Cedex 05 France Anorganische und Strukturchemie II Heinrich-Heine-Universität Düsseldorf Universitätsstraße 1 40225 Düsseldorf Germany Biological and Chemical Research Centre Department of Chemistry University of Warsaw ul. Żwirki i Wigury 101 02-089 Warszawa Poland CNR-ISTM Istituto di Scienze e Tecnologie Molecolari via Golgi 19 Milano I-20133 Italy Istituto Lombardo Accademia di Scienze e Lettere via Brera 28 20121 Milano Italy Department of Mathematics Computer Science and Physics University of Udine Via delle Scienze 208 I-33100 Udine Italy Structure Properties and Modeling of Solids Laboratory CentraleSupelec Paris-Saclay University 3 rue Joliot-Curie 91191 Gif-sur-Yvette France School of Molecular Sciences University of Western Australia 35 Stirling Highway Perth WA 6009 Australia Department of Chemistry and Biochemistry University of Bern Freiestrasse 3 CH-3012 Bern Switzerland Department of Pharmacy University of Copenhagen Universitetsparken 2 2100 Copenhagen Denmark Hunter College & the Ph.D. Program of the Graduate Center City University of New York New York USA Department of Chemistry and Physics Mount Saint Vincent University Halifax Nova Scotia B3M 2J6 Canada Department of Chemistry Dalhousie University Halifax Nova Scotia B3H 4J3 Canada Department of Chemistry Saint Mary's University Halifax Nova Scotia B3H 3C3 Canada Département de Chimie Université Laval Québec QC G1V 0A6 Canada Department of Chemistry and Department of Biochemistry and Molecular Biology Michigan Stat

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Heat Signatures Manipulation: From Cloaking to Camouflage

Heat Signatures Manipulation: From Cloaking to Camouflage

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The 2nd International Conference on Phononics and thermal Energy science(PTES2014)(第二届国际声子学与热能科学大会)

作者： Xue Bai Tiancheng Han John T. L. Thong Baowen Li Cheng-Wei Qiu Center for Phononics and Thermal Energy Science School of Physical Science and EngineeringTongji University200092ShanghaiChina Department of Electrical and Computer Engineering National University of Singapore4 Engineering Drive 3Republic of Singapore Department of Physics and Centre for Computational Science and Engineering National University of SingaporeSingapore 117546Republic of Singapore NUS Graduate School for Integrative Sciences and Engineering National University of SingaporeKent Ridge 119620Republic of Singapore Department of Physics and Centre for Computational Science and EngineeringNational University of SingaporeSingapore 117546Republic of Singapore NUS Graduate School for Integrative Sciences and Engineering National University of SingaporeKent Ridge 119620Republic of Singapore NUS Graduate School for Integrative Sciences and Engineering National University of SingaporeKent Ridge 119620Republic of Singapore Department of Electrical and Computer EngineeringNational University of Singapore4 Engineering of SingaporeSingapore 117546Republic of Singapore Department of Electrical and Computer EngineeringNational University of Singapore4 Engineering of SingaporeSingapore 117546Republic of Singapore

The perception and identification of an object can be realized by detecting its unique scattering signature in various physical fields,e.g.,optics,electromagnetics,acoustics,thermotics,***,is the device which can change an arbitrary object into nothing by hiding the unique *** contrast to cloak,illusion usually refers to the change of signatures for one object into another in a specific physical *** on our previous thermal cloak work,we propose and realize a functional thermal camouflage device,which is capable of creating multiple expected images of the original object's position in heat *** thermal scattering signature of the object is thus metamorphosed and perceived as multiple ghost targets with different geometries and *** thermal illusion effect is experimentally confirmed in both time-dependent and temperature-dependent cases,demonstrating excellent thermotics performance.

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A proposal of Smart TV System focused on findability

A proposal of Smart TV System focused on findability

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2013 IEEE 2nd Global Conference on Consumer Electronics, GCCE 2013

作者： Kobayashi, Toru Division of Electrical Engineering and Computer Science Graduate School of Engineering Nagasaki University Nagasaki Japan

ISBN: (纸本)9781479908929

I propose a Smart TV System focused on findability. This system allows us to retrieve information without typing-in search key words. It also allows us to see retrieved information via multi-screen environment based on the intuitive user interface. I show an information finding model as a fundamental concept of this system, system configuration and user interface. I believe that this system will solve the problem of information retrieval capability differentials among users. © 2013 IEEE.

关键词： User interfaces

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Symmetry-protected mode coupling near normal incidence for narrow-band transmission filtering in a dielectric grating

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Physical Review B 2014年第16期89卷 165111-165111页

作者： J. M. Foley S. M. Young J. D. Phillips Applied Physics Program University of Michigan Ann Arbor Michigan 48109 USA Electrical Engineering and Computer Science Department University of Michigan Ann Arbor Michigan 48109 USA Physics Department University of Michigan Ann Arbor Michigan 48109 USA

A narrow-band transmission filter is demonstrated near normal incidence that operates through relaxation of supported-mode selection rules and is explained in the context of group theory. We calculated the transverse magnetic and transverse electric dispersion relations of a dielectric grating in the subwavelength and near-wavelength region using finite element modal analysis and determine the modes' corresponding irreducible representations. Coupling to select transverse magnetic modes at normal incidence is optimized to yield broadband high reflectance that acts as the background for the transmission filter. While some modes couple at normal incidence, others are shown to remain inaccessible due to symmetry mismatch. Away from normal incidence, the reduced symmetry relaxes the selection rules, enabling weak coupling between the incident field and these symmetry-protected modes. This weak coupling produces narrow transmission bands within the opaque background. Furthermore, by choosing the plane of incidence to include or exclude the grating periodicity, we show that orthogonal mode sets can independently be selected to couple to the incident light, yielding separate transmission bands. This spectral filtering is experimentally demonstrated with a suspended silicon grating in the infrared spectrum (7–14μm), which agrees well with simulated transmittance spectra and modal analysis.

关键词： GROUP theory MODAL analysis DIELECTRICS SYMMETRIC functions FINITE element method

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Verification of relationship between heart rate and body movement for fatigue estimation

Verification of relationship between heart rate and body mov...

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IEEE International Conference on Industrial Informatics (INDIN)

作者： Jinhua She Hitoshi Nakamura Junya Imani Yasuhiro Ohyama Hiroshi Hashimoto Min Wu School of Information Science and Engineering Hunan Engineering Laboratory for Advanced Control and Intelligent Automation Changsha China School of Computer Science Tokyo University of Technology Hachioji Japan Graduate School of Bionics Tokyo University of Technology Hachioji Japan Master Program of Innovation for Design and Engineering Advanced Institute of Industrial Technology Japan

It is an urgent need to find an objective way to estimate the degree of fatigue of employees. In this study, we designed a monitoring and estimation system for the degree of fatigue. This paper explains a long-term pedaling experiment that we use it to explore the possibility to use only the time sequence data of head movement during pedaling to estimate the fatigue. While we show the possibility for this through experimental data, it is clear that we need to collect more data to establish an estimation method.

关键词： Fatigue Heart rate Estimation Educational institutions Monitoring Correlation Electronic mail

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Analysis of the permeability spectra of Fe-Al-Si granular composite materials

Analysis of the permeability spectra of Fe-Al-Si granular co...

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International Symposium on Electromagnetic Compatibility, Tokyo (EMCTokyo)

作者： Takanori Tsutaoka Hideaki Kinoshita Teruhiro Kasagi Shinichiro Yamamoto Kenichi Hatakeyama Marina Y. Koledintseva Graduate School of Education Hiroshima University Kagamiyama Higashi-Hiroshima Japan Tokuyama College of Technology Gakuendai Shunan Yamaguchi Japan Graduate School of Engineering University of Hyogo Syosha Himeji Hyogo Japan Department of Electrical and Computer Engineering Missouri University of Science & Technology Rolla Missouri U.S.A.

High-frequency permeability spectra of Sendust (Fe-Al-Si alloy) granular composite materials have been studied by the numerical analysis using magnetic resonance formulas The relaxation type frequency dispersion characteristics of permeability were obtained for Sendust composite material. Sendust composite shows insulating property for the particle content up to at least 60 vol.%, indicating that the embedded Sendust particles have high surface electrical resistivity. Thus the eddy current effect can be neglected over the microwave frequency range.

关键词： Permeability Composite materials Dispersion Metals Resonant frequency Conductivity Magnetic susceptibility

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Galvanic vestibular stimulator for fMRI studies

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Revista Brasileira de Engenharia Biomedica 2014年第1期30卷 70-82页

作者： Della-Justina, Hellen Mathei Manczak, Tiago Winkler, Anderson Marcelo de Araújo, Dráulio Barros de Souza, Mauren Abreu Amaro Junior, Edson Gamba, Humberto Remigio Graduate School of Electrical Engineering and Computer Science Federal University of Technology - Paraná - UTFPR Av. Sete de setembro 3165 CEP 80230-901 Curitiba PR Brazil Department of Psychiatry Yale University School of Medicine New Haven CT United States The Oxford Centre for Functional MRI of the Brain - FMRIB John Radcliffe Hospital University of Oxford Oxford United Kingdom Brain Institute Federal University of Rio Grande do Norte - UFRN Natal RN Brazil Department of Radiology University of Sao Paulo - USP São Paulo Brazil

Introduction: Areas of the brain that are associated with the vestibular system can be activated using galvanic vestibular stimulation. These areas can be studied through a combination of galvanic vestibular stimulation with functional magnetic resonance imaging (fMRI). In order to provide an appropriate sequence of galvanic stimulation synchronous with the MRI pulse sequence, a specific electronic device that was built and assessed is presented. Methods: The electronic project of the GVS is divided in analog and digital circuits. The analog circuits are mounted in an aluminum case, supplied by sealed batteries, and goes inside the MRI room near to the feet of the subject. The digital circuits are placed in the MRI control room. Those circuits communicate through each other by an optical fiber. Tests to verify the GVS-MRI compatibility were conducted. Silicone (in-house) and Ag/AgCl (commercial) electrodes were evaluated for maximum balance and minimal pain sensations. fMRI experiments were conducted in eight human volunteers. Results: GVS-MRI compatibility experiments demonstrate that the GVS did not interfere with the MRI scanner functionality and vice versa. The circular silicone electrode was considered the most suitable to apply the galvanic vestibular stimulation. The 1 Hz stimulation sinusoid frequency produced the biggest balance and the less pain sensations when compared to 2 Hz. The GVS was capable of eliciting activation in the precentral and postcentral gyri, in the central sulcus, in the supplementary motor area, in the middle and inferior frontal gyri, in the inferior parietal lobule, in the insula, in the superior temporal gyrus, in the middle cingulate cortex, and in the cerebellum. Conclusion: This study shows the development and description of a neurovestibular stimulator that can be safely used inside the MRI scanner room without interfering on its operation and vice versa. The developed GVS could successfully activate the major areas involved wit

关键词： Magnetic resonance imaging

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Conductance-based computational model of basal ganglia

Conductance-based computational model of basal ganglia

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Iranian Conference on electrical engineering (ICEE)

作者： Mohammad Reza Mohagheghi-Nejad Fariba Bahrami Mahyar Janahmadi Graduate Student School of Electrical and Computer Engineering College of Engineering University of Tehran Tehran Iran Associate Professor CIPCE College of Engineering University of Tehran Tehran Iran Professor Neurophysiology Research Center and Department of Physiology Shahid Beheshti University of Medical Science Tehran Iran

ISBN: (纸本)9781479944088

The basal ganglia play an important role in motor control and their malfunction is implicated in several disorders including Parkinson's disease (PD), in which dopamine concentration is greatly reduced. This is associated with changes in their firing patterns, evidenced by increase in firing rate of output nuclei of basal ganglia and synchronization between neurons of different micro-circuitry of basal ganglia. The most effective way to alleviate the symptoms of PD is to take Levodopa which replenishes dopamine storage in the brain. However, long-term use of Levodopa results in motor fluctuations and dyskinesia. Here, we developed a conductance-based computational model of basal ganglia which considers modulatory effects of dopamine on its target nucleus, that is on striatum. This model can be used to investigate the effect of variations of the dopamine levels on motor fluctuation. Moreover, the effect of applying deep brain electrical stimulation on different nuclei of basal ganglia can be investigated through the proposed model.

关键词： Neurons Computational modeling Synchronization Basal ganglia Brain modeling Biological system modeling Mathematical model

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