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12th IEEE International Conference on Wearable and Implantable Body Sensor Networks, BSN 2015

作者： Alinia, Parastoo Saeedi, Ramyar Mortazavi, Bobak Rokni, Ali Ghasemzadeh, Hassan Embedded and Pervasive Systems Lab School of Electrical Engineering and Computer Science Washington State University PullmanWA99164-2752 United States Center for Outcomes Research and Evaluation Yale University New HavenCT06511 United States

ISBN: (纸本)9781467372015

Metabolic equivalent of task (MET) indicates the intensity of physical activities. This measurement is used in providing physical activity intervention in many chronic illnesses such as coronary heart disease, type-2 diabetes, and cancer. Due to the small size, portability, low power consumption, and low cost, wearable motion sensors are widely used to estimate MET values. However, one major obstacle in widespread adoption of current wearable monitoring systems is that the sensors must be worn on predefined locations on the body. This imposes much discomfort for users as they are not allowed to wear the sensors on their own desired body locations. In addition, non-adherence to the predefined location of the sensors results in significant reduction in the accuracy of physical activity monitoring. In this paper, we propose a framework for sensor location-independent MET estimation. We introduce a sensor localization approach that allows users to wear the sensors on different body locations without having to adhere to a specific installation protocol. We study how such an algorithm impacts the performance of MET estimation algorithms. Using daily physical activity data, we demonstrate that an automatic sensor localization algorithm decreases the estimation error of the MET calculation by a factor of 2.3 compared to the case without sensor localization. Furthermore, our sensor localization algorithm achieves an accuracy of 90.8% in detecting on-body locations of wearable sensors. The integration of sensor localization and MET estimation achieves an accuracy of 80% in calculating the MET values of daily physical activities. © 2015 IEEE.

关键词： Location

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Gait motion analysis based on WB-4 sensor with quaternion algorithm

Gait motion analysis based on WB-4 sensor with quaternion al...

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IEEE International Conference on Cyber Technology in Automation, Control, and Intelligent systems

作者： C.b. Wang T.y. Sun L.h. Duan Q.q. Liu Z.j. Lu M. Li P.f. Chen C.d. Wei A.h. Hou Y.j. Shen Q.h. Liu J. Qin W.g. Li Q. Shi Y.l. Wang J.j. Long J.j. Wei M. Zecca Z.z. Wu Waseda University Hongkong City University School of Mechanical and Automotive Engineering South China University of Technology China Shenzhen Institute of Geriatrics China Shenzhen Second People's Hospital Shenzhen Institute of Geriatrics MK Smart Robot Research Co. Ltd. Mechanical and Biomedical Engineering City University of Hong Kong Fist Affiliated Hospital Sun Yat-sen University Takanishi Lab Waseda University School of Mechatronical Engineering Beijing Institute of Technology Shenzhen Second People's Hospital Guangxi University of Science and Technology China School of Electronic Electrical and Systems Engineering Loughborough University Leicestershire United Kingdom

ISBN: (纸本)9781509027347

Up to now, with the increasing of the elderly population, more and more patients are suffering from hemiplegia. The needs for hemiplegic rehabilitation is increasing quickly. As traditional rehabilitation, each patient must be treated by therapist, one by one. However, because of the different levels of therapists, the rehabilitation cannot be performed as the as the same. Normally, the rehabilitation status diagnosing is still be performed by therapists with the subjective experience. It caused the inhomogeneity on rehabilitation evaluation. It also sometimes causes negative influence on the rehabilitation effect. To solve these problems, many researches focusing on assessing the status of the hemiplegic patients quantitatively are proposed rehabilitation evaluation systems. Rehabilitation motion detection is the basis of the evaluation system, and it requires the participation of therapist. In this paper, a method is presented to detect lower limb motion of hemiplegic patients based on inertial sensor technology. The gesture quaternion of lower limb can be obtained through LPMS. With the matrix and Euler angle changing algorithm, combining with the simplified lower limb motion model, the rotation angle of joint can be computed. Finally, the curve of rotation angle of knee is established.

关键词： Quaternions Tracking Hospitals Mathematical model Robot sensing systems Thigh Knee

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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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A novel approach towards vibration suppression in linear direct feed drive 15

A novel approach towards vibration suppression in linear dir...

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15th International Conference of the European Society for Precision engineering and Nanotechnology, EUSPEN 2015

作者： Chen, Si-Lu Ma, Jun Lian, Xiao Teo, Chek Sing Lin, Wei Tay, Arthur Al Mamun, Abdullah SIMTech-NUS Joint Lab. on Precision Motion Systems Dept. of Electrical and Computer Engineering National University of Singapore Singapore117576 Singapore Department of Electrical and Computer Engineering National University of Singapore Singapore117576 Singapore Agency for Science Technology and Research Singapore Institute of Manufacturing Technology Singapore638075 Singapore Department of Mathmatics National University of Singapore Singapore119076 Singapore

ISBN: (纸本)9780956679079

Linear direct feed drives are widely used in high performance equipment and machine tools. However, the abrupt counter force to the machine frame from the secondary part of the linear motor induces possible residue vibration. The jerk decoupling cartridge (JDC) provides a buffer to reduce such an impact, but no existing JDC design considers the factors of closed-loop control together with mechanical parameters, as well as how to obtain optimal parameters under various mechanical and electrical design constraints. This paper presents a linear quadratic optimization approach to design the controller and the JDC. The problem is correctly formulated and the correctness of obtained optimal parameters is verified through a series of simulation.

关键词： Linear motors

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A large catalog of homogeneous ultra-violet/optical grb afterglows: Temporal and spectral evolution

arXiv

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arXiv 2017年

作者： Roming, Peter W.A. Koch, T. Scott Oates, Samantha R. Porterfield, Blair L. Bayless, Amanda J. Breeveld, Alice A. Gronwall, Caryl Kuin, N.P.M. Page, Mat J. De Pasquale, Massimiliano Siegel, Michael H. Swenson, Craig A. Tobler, Jennifer M. Southwest Research Institute Space Science & Engineering Division 6220 Culebra Road San AntonioTX78238-5166 United States Pennsylvania State University Department of Astronomy & Astrophysics 525 Davey Lab University ParkPA16802 United States University of Texas at San Antonio Department of Physics & Astronomy 1 UTSA Circle San AntonioTX78249 United States Pennsylvania State University Classroom & Lab Computing 101E Computer Building University ParkPA16802 United States Mullard Space Science Laboratory University College London Holmbury St. Mary Dorking SurreyRH5 6NT United Kingdom Space Telescope Science Institute 3700 San Martin Drive BaltimoreMD21218 United States Pennsylvania State University Institute for Gravitation and the Cosmos University ParkPA16802 United States Science Systems and Applications Inc. 10210 Greenbelt Road LanhamMD20706 United States University of North Dakota Department of Space Studies 4149 University Avenue Grand ForksND58202-9008 United States

We present the second Swift Ultra-Violet/Optical Telescope (UVOT) gamma-ray burst (GRB) afterglow catalog, greatly expanding on the first Swift UVOT GRB afterglow catalog. The second catalog is constructed from a database containing over 120, 000 independent UVOT observations of 538 GRBs first detected by Swift, the High Energy Transient Explorer 2 (HETE2), the INTErnational Gamma-Ray Astrophysics laboratory (INTEGRAL), the Interplanetary Network (IPN), Fermi, and Astro-rivelatore Gamma a Immagini Leggero (AGILE). The catalog covers GRBs discovered from 2005 Jan 17 to 2010 Dec 25. Using photometric information in three UV bands, three optical bands, and a 'white' or open filter, the data are optimally co-added to maximize the number of detections and normalized to one band to provide a detailed light curve. The catalog provides positional, temporal, and photometric information for each burst, as well as Swift Burst Alert Telescope (BAT) and X-Ray Telescope (XRT) GRB parameters. Temporal slopes are provided for each UVOT filter. The temporal slope per filter of almost half the GRBs are fit with a single power-law, but one to three breaks are required in the remaining bursts. Morphological comparisons with the X-ray reveal that ∼ 75% of the UVOT light curves are similar to one of the four morphologies identified by Evans et al. (2009). The remaining ∼ 25% have a newly identified morphology. For many bursts, redshift and extinction corrected UV/optical spectral slopes are also provided at 2 × 103, 2 × 104, and 2 × 105seconds. Copyright © 2017, The Authors. All rights reserved.

关键词： Photometry

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A special resource constrained project scheduling problem: model update and ant colony optimization solving

A special resource constrained project scheduling problem: m...

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2015 4th National Conference on Electrical,Electronics and computer engineering(NCEECE 2015)

作者： Mingwei Li Kun Jiang Sheng Han Xingye Dong Beijing Key Lab of Traffic Data Analysis and Mining School of Computer and ITBeijing Jiaotong University Systems Engineering Research Institute Beijing

ISBN: (纸本)9781510819085

A special resource constrained scheduling problem is proposed to satisfy the needs of an enterprise. The constraints of sites and the constraints among different resources are added. With a SSGS-based heuristic algorithm generating an initial solution for the proposed model, the max-min ant system is applied in selecting proper sites for jobs to optimize the solution. The experimental results show that the algorithm can achieve good performance by improving the initial solution significantly, which proves the effectiveness of the algorithm.

关键词： resource constrained project scheduling meta-heuristic max-min ant system

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GPU technology as a platform for accelerating physiological systems modeling based on Laguerre-Volterra networks

GPU technology as a platform for accelerating physiological ...

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

作者： Agathoklis Papadopoulos Kyriaki Kostoglou Georgios D. Mitsis Theocharis Theocharides KIOS Research Center Department of Electrical and Computer Engineering University of Cyprus Nicosia Cyprus Biosignal Processing and Quantitative Systems Physiology Lab Department of Electrical and Computer Engineering University of Cyprus Nicosia Cyprus

ISBN: (纸本)9781424492695

The use of a GPGPU programming paradigm (running CUDA-enabled algorithms on GPU cards) in biomedical engineering and biology-related applications have shown promising results. GPU acceleration can be used to speedup computation-intensive models, such as the mathematical modeling of biological systems, which often requires the use of nonlinear modeling approaches with a large number of free parameters. In this context, we developed a CUDA-enabled version of a model which implements a nonlinear identification approach that combines basis expansions and polynomial-type networks, termed Laguerre-Volterra networks and can be used in diverse biological applications. The proposed software implementation uses the GPGPU programming paradigm to take advantage of the inherent parallel characteristics of the aforementioned modeling approach to execute the calculations on the GPU card of the host computer system. The initial results of the GPU-based model presented in this work, show performance improvements over the original MATlab model.

关键词： GPU GPGPU MATlab GRAPPER PICK UP Graphics Processing Unit MATlab software implementation acceleration

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Using fluorescence measurements to model key phenomena in microalgae photosynthetic mechanisms

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Chemical engineering Transactions 2015年 43卷 217-222页

作者： Bernardi, Andrea Nikolaou, Andreas Meneghesso, Andrea Morosinottoc, Tomas Chachuat, Benoit Bezzo, Fabrizio CAPE-Lab: Computer-Aided Process Engineering Laboratory PAR-Lab: Padova Algae Research Laboratory Department of Industrial Engineering University of Padova Italy Centre for Process Systems Engineering Department of Chemical Engineering Imperial College London United Kingdom PAR-Lab: Padova Algae Research Laboratory Department of Biology University of Padova Italy

ISBN: (纸本)9788895608341

Fluorescence is a powerful tool in characterizing the photosynthetic properties of microalgae. In this work we discuss a dynamic model able to accurately represent Pulse Amplitude Method (PAM) fluorescence data. The model includes photoproduction, photoinhibition and photoregulation and has been calibrated using data from a culture of Nannochloropsis Gaditana. The main objective of the work is to propose an experiment design approach to determine information rich PAM experiments and identify the model. Moreover, we will show how the model can be used to predict the photosynthesis rate under dynamic light conditions. Finally, the work shows that different PI curve characteristics arise as a result of different experimental protocols and highlights the importance of the accurate description of the protocols used to derive the experimental data. Copyright © 2015, AIDIC Servizi S.r.l.

关键词： Fluorescence

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smart Grid Cyber Security： An Overview of Threats and Countermeasures

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Journal of Energy and Power engineering 2015年第7期9卷 632-647页

作者： Carlos Lopez Arman Sargolzaei Hugo Santana Carlos Huerta PLC (Power Line Carrier) International Inc. Smart Communication Systems Miami FL 33155 USA Department of Electrical and Computer Engineering Florida International University Miami FL 33174 USA US Naval Research Laboratory Corrosion Science and Engineering Washington DC 20375 USA

The smart grid is the next generation of power and distribution systems. The integration of advanced network, communications, and computing techniques allows for the enhancement of efficiency and reliability. The smart grid interconnects the flow of information via the power line, intelligent metering, renewable and distributed energy systems, and a monitoring and controlling infrastructure. For all the advantages that these components come with, they remain at risk to a spectrum of physical and digital attacks. This paper will focus on digital vulnerabilities within the smart grid and how they may be exploited to form full fledged attacks on the system. A number of countermeasures and solutions from the literature will also be reported, to give an overview of the options for dealing with such problems. This paper serves as a triggering point for future research into smart grid cyber security.

关键词： smart grid power line communications smart metering threats vulnerabilities countermeasures solutions.

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Analysis of Series-Parallel Resonant Inductive Coupling Circuit using the Two-port Network Theory

Analysis of Series-Parallel Resonant Inductive Coupling Circ...

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Annual Conference of the IEEE Industrial Electronics Society

作者： Kunwar Aditya Mohamed Youssef Sheldon S. Williamson Smart Transportation Electrification and Energy Research (STEER) Group Advanced Storage Systems and Electric Transportation (ASSET) Laboratory UOIT-Automotive Center of Excellence (UOIT-ACE) Department of Electrical Computer and Software Engineerin g Smart Transportation Electrification and Energy Research (STEER) Group Advanced Storage Systems and Electric Transportation (ASSET) Laboratory UOIT-Automotive Center of Excellence (UOIT-ACE) Department of Electrical Computer and Software Engineering

ISBN: (纸本)9781479917631

In this paper thorough analysis of Series-Parallel resonant inductive coupling (SPRIC) has been presented using two-port network theory. Characteristic of SPRIC has been derived and plotted against load variation and frequency variation in MATlab. Concept of forced resonance and natural resonance has been discussed. Important expressions such as current transfer ratio, voltage transfer ratio, maximum efficiency etc. has been derived and presented. To study the circuit behavior of the SPRIC a prototype has been built in the lab. Experimental results along with simulation results has been presented to verify the derived expression and characteristics of series-parallel topology.

关键词： Circuit theory Electric vehicles Inductive energy storage Magnetic resonance Quality factor Circuit theory Electric vehicles Quality factor Magnetic Resonance series-parallel inductive energy storage Resonant inductive coupling two-port networks natural resonance load changes Frequency variation

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