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IEEE Energy Conversion Congress and Exposition

作者： Nustenil S. M. L. Marinus Cursino B. Jacobina Nady Rocha Euzeli C. dos Santos Federal Institute of the Ceara Campus Cedro Post-Graduate Program in Electrical Engineering - PPgEE - COPELE Electrical Engineering Department (DEE) Federal University of Campina Grande (UFCG) 58109-970 Campina Grande - PB - Brazil Electrical Engineering Department (DEE) Federal University of Paraiba (UFPB) 58051-900 Cidade Universitaria - Joao Pessoa - PB - Brazil Indiana University-Purdue University Indianapolis

ISBN: (纸本)9781479957774

An unidirectional three-phase to three-phase dc-link converter is proposed, in this paper. It is composed of three unidirectional ac-dc-ac three-leg converters with a shared-leg. The three-leg converter is composed of a non-controlled leg, two controlled legs and a dc-link. A suitable model and control strategy of the systems, including a synchronization method, are proposed. The synchronization method, associated with the PWM strategy allow the grid currents and load voltages have the same phase angle of the input converter voltages. This method ensures sinusoidal grid currents and mitigate the zero-crossing distortions normally caused by the use of diodes. Simulation and experimental results are also presented for validation purposes.

关键词： Topology Capacitors Voltage control Synchronization Legged locomotion Harmonic analysis Load modeling

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Real-time load forecasting for demand side management with only a few days of history available

Real-time load forecasting for demand side management with o...

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2013 4th International Conference on Power engineering, Energy and electrical Drives, POWERENG 2013

作者： Neusser, Lukas Canha, Luciane Neves Post Graduate Program in Electrical Engineering Federal University of Santa Maria - UFSM Santa-Maria Brazil

ISBN: (纸本)9781467363921

The penetration of distributed generation is growing, and today it is not unusual to see at the same site, equipment that consumes energy working side by side with power sources. To manage and optimize the use of every resource, and to avoid unbalances when the system operates near its limits, the need for very short-term load forecasting is inevitable. In this paper, the use of an already known, fast forecast algorithm, based on double seasonal exponential smoothing is proposed. His real-time usability, with only limited historical data are tested, and the mechanism behind to achieve that are explained. Results, the functionality and reliability on a real world system are also presented and discussed, leading to some concluding remarks at the end of the paper. © 2013 IEEE.

关键词： Forecasting

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A web-based, hospital-wide health care-associated bloodstream infection surveillance and classification system: Development and evaluation

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JMIR Medical Informatics 2015年第3期3卷 e31页

作者： Tseng, Yi-Ju Wu, Jung-Hsuan Lin, Hui-Chi Chen, Ming-Yuan Ping, Xiao-Ou Sun, Chun-Chuan Shang, Rung-Ji Sheng, Wang-Huei Chen, Yee-Chun Lai, Feipei Chang, Shan-Chwen Graduate Institute of Biomedical Electronics and Bioinformatics National Taiwan University Taipei Taiwan Computational Health Informatics Program Boston Children's Hospital Boston MA United States Department of Electrical Engineering National Taiwan University Taipei Taiwan Center for Infection Control National Taiwan University Hospital Taipei Taiwan National Taiwan University Hospital Information Systems Office Taipei Taiwan Department of Computer Science and Information Engineering National Taiwan University Taipei Taiwan Department of Internal Medicine National Taiwan University Hospital and College of Medicine Taipei Taiwan National Health Research Institutes National Institute of Infectious Diseases and Vaccinology Miaoli Taiwan

Background: Surveillance of health care-associated infections is an essential component of infection prevention programs, but conventional systems are labor intensive and performance dependent. Objective: To develop an automatic surveillance and classification system for health care-associated bloodstream infection (HABSI), and to evaluate its performance by comparing it with a conventional infection control personnel (ICP)-based surveillance system. Methods: We developed a Web-based system that was integrated into the medical information system of a 2200-bed teaching hospital in Taiwan. The system automatically detects and classifies HABSIs. Results: In this study, the number of computer-detected HABSIs correlated closely with the number of HABSIs detected by ICP by department (n=20;r=.999 P<.001) and by time (n=14;r=.941;P<.001). Compared with reference standards, this system performed excellently with regard to sensitivity (98.16%), specificity (99.96%), positive predictive value (95.81%), and negative predictive value (99.98%). The system enabled decreasing the delay in confirmation of HABSI cases, on average, by 29 days. Conclusions: This system provides reliable and objective HABSI data for quality indicators, improving the delay caused by a conventional surveillance system. © 2020 JMIR Publications Inc. All rights reserved.

关键词： Health care-associated infection Infection control Information systems Surveillance Web-based services

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An algorithm for computing all-terminal reliability bounds

An algorithm for computing all-terminal reliability bounds

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International Workshop on Reliable Networks Design and Modeling (RNDM)

作者： Jaime Silva Teresa Gomes David Tipper Lúcia Martins Velin Kounev Department of Physics CFC University of Coimbra Coimbra Portugal INESC Coimbra Coimbra Portugal Department of Electrical and Computer Engineering University of Coimbra Coimbra Portugal Graduate Telecommunications and Networking Program University of Pittsburgh Pittsburgh PA

The exact calculation of all-terminal reliability is not feasible in large networks. Hence estimation techniques and lower and upper bounds for all-terminal reliability have been utilized. We propose using an ordered subset of the mincuts and an ordered subset of minpaths to calculate an all-terminal reliability upper and lower bound, respectively. The advantage of the proposed approach results from the fact that it does not require the enumeration of all mincuts or all minpaths as required by other bounds. The performance of the algorithm is compared with the first two Bonferroni bounds, for networks where all mincuts could be calculated. The results show that the proposed approach is computationally feasible and reasonably accurate. Thus allowing one to obtain bounds when it not possible to enumerate all mincuts or all minpaths.

关键词： Availability Probability Telecommunication network reliability Upper bound computer network reliability Reliability engineering

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Three-Phase shunt active power filter based on the interconnection of single-Phase and three-Phase converters

Three-Phase shunt active power filter based on the interconn...

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2013 12th Brazilian Power Electronics Conference, COBEP 2013

作者： Maciel, A.M. Jacobina, C.B. Melo, V.B. Dos Santos, E.C. Fabricio, E.L.L. Post-Graduate Program in Electrical Engineering -PPgEE -COPELE Brazil 58429-900 Campina Grande -PB Brazil -PB Brazil Department of Electrical and Computer Engineering Purdue School of Engineering and Technology IUPUI United States

ISBN: (纸本)9781479902729

This paper presents a topology based on the interconnection of single-phase H-bridge converters and a three-phase converter acting as a shunt active power filter. Contributions for the model, PWM approach and control strategies are presented to the studied converter. As compared to the conventional solution by using just H-bridges converters, the proposed one reduces the number of semiconductor and storage devices while keeping the same characteristics of high number of levels. A comprehensive THD analysis will be considered followed by simulated and experimental outcomes. © 2013 IEEE.

关键词： Bandpass filters

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Service-oriented biomedical devices

Service-oriented biomedical devices

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Health Innovations and POCT

作者： João M. T. Lacerda Ricardo A. M. Valentim Bruno G. de Araújo Philippi S. G. Morais Marcel C. M. Dantas Federal Institute of Education Graduate Program in Electrical Engineering and Computer Science (PPGEEC) Natal RN Brazil Laboratory of Technological Innovation in Health (LAIS) Federal University of Rio Grande do Norte (UFRN) Natal RN Brazil

The great diversity in the architecture of biomedical devices, coupled with their different communication protocols, has hindered the implementation of systems that need access to these devices. Given these differences, arises the need to provide access to such devices in a transparent way. In this sense, this paper proposes an service-oriented architecture to access biomedical devices as a way to abstract the mechanism for writing and reading data on these devices, thus contributing to the increase in quality and productivity of biomedical systems in order to enable that the focus of the development team of biomedical software is almost exclusively intended for its functional requirements, i.e. business rules relevant to the problem domain. For the development of this work, technologies such as the XML language and the Java programming language were used and concepts of Software engineering as Design Patterns. After the proposition of the architecture, tests in order to validate the proposed architecture were performed.

关键词： Service-oriented architecture Hardware XML Java Time factors computer architecture

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Automated Cell Counting in a High Density, Polymer-Coated, Live Single Cell Sandwich Microarray

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Microscopy and Microanalysis 2014年第S3期20卷 1438-1439页

作者： Jordan R. Yaron Jieying Pan Tejas Borkar Kristen B. Lee Kuo-Chen Wang Clifford L. Anderson Honor L. Glenn Deirdre R. Meldrum Center for Biosignatures Discovery Automation The Biodesign Institute Arizona State UniversityTempe AZ USA Biological Design Graduate Program Arizona State University Tempe AZ USA School of Electrical Computer and Energy Engineering Arizona State University Tempe AZ USA

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Dynamic Bandwidth Distribution for Entertainment Vehicular Networks Applications

Dynamic Bandwidth Distribution for Entertainment Vehicular N...

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International Conference on Advanced Information Networking and Applications Workshops (AINAW)

作者： Ronan D. Mendonça Thais R.M. Braga Silva Fabrício A. Silva Linnyer B. Ruiz Antonio A.F. Loureiro Graduate Program in Electrical Engineering Federal University of Minas Gerais Campus Florestal - Fed. Univ. of Vicosa Vicosa Brazil Computer Science Department Federal University of Minas Gerais Department of Informatics State University of Maringa

Vehicular networks will play an important role in future smart cities. Connected vehicles will be able to provide entertainment content to their users in order to make traffic situations more enjoyable. However, the amount of bandwidth available to the vehicles may not be enough to satisfy all of them. In this case, we can say that a conflict of interest occurred and then must the solved as fair as possible. In this work, we propose a solution to solve this kind of collective conflict. Our solution balances users' satisfaction with resources consumption as it is capable of choosing the most adequate resolution algorithm based on the current application's situation. The results showed that with our solution it was possible to achieve adequate satisfaction levels, with low response time and controlled network usage.

关键词： Vehicles Bandwidth Entertainment industry Protocols Time factors Vehicle dynamics Heuristic algorithms

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Corrigendum to "Target-specific near-IR induced drug release and photothermal therapy with accumulated Au/Ag hollow nanoshells on pulmonary cancer cell membranes" [Biomaterials 45 (2015) 81-92]

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Biomaterials 2015年 65卷 124-125页

作者： Mi Suk Noh Somin Lee Homan Kang Jin-Kyoung Yang Hyunmi Lee Doyk Hwang Jong Woo Lee Sinyoung Jeong Yoonjeong Jang Bong-Hyun Jun Dae Hong Jeong Seong Keun Kim Yoon-Sik Lee Myung-Haing Cho Laboratory of Toxicology College of Veterinary Medicine Seoul National University Seoul 151-742 Republic of Korea Program in Nano Science and Technology Graduate School of Convergence Science and Technology Seoul National University Seoul 151-742 Republic of Korea Medical Supplies Evaluation Center Korea Testing Certification Gunpo 435-862 Republic of Korea. Graduate Group of Tumor Biology Seoul National University Seoul 151-742 Republic of Korea. Interdisciplinary Program in Nano-Science and Technology Seoul National University Seoul 151-742 Republic of Korea School of Electrical Engineering and Computer Science Seoul National University Seoul 151-742 Republic of Korea. School of Chemical and Biological Engineering Seoul National University Seoul 151-742 Republic of Korea. Department of Biophysics and Chemical Biology and Department of Chemistry Seoul National University Seoul 151-742 Republic of Korea. Department of Chemistry Education Seoul National University Seoul 151-742 Republic of Korea. Laboratory of Toxicology College of Veterinary Medicine Seoul National University Seoul 151-742 Republic of Korea. Department of Bioscience and Biotechnology Konkuk University Seoul 143-701 Republic of Korea. Department of Chemistry Education Seoul National University Seoul 151-742 Republic of Korea. School of Chemical and Biological Engineering Seoul National University Seoul 151-742 Republic of Korea. Electronic address: yslee@snu.ac.kr. Graduate Group of Tumor Biology Seoul National University Seoul 151-742 Republic of Korea Advanced Institute of Convergence Technology Seoul National University Suwon 443-270 Republic of Korea. Electronic address: mchotox@snu.ac.kr.

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Distributed approach for channel quality estimation using dedicated nodes in industrial WSN

Distributed approach for channel quality estimation using de...

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IEEE International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC)

作者： Ruan D. Gomes Gláucio B. Rocha Abel C. Lima Filho Iguatemi E. Fonseca Marcelo S. Alencar Informatic Coordination Federal Institute of Paraíba Guarabira Paraíba Brazil Informatic Center Federal University of Paraíba João Pessoa Paraíba Brazil Mechanical Engineering Department Federal University of Paraíba João Pessoa Paraíba Brazil Post-Graduate Program in Electrical Engineering - PPgEE - Copele Campina Grande Paraíba Brazil

ISBN: (纸本)9781479949113

A way to deal with the variations in the link quality of Wireless Sensor Networks (WSN) is the use of strategies for Dynamic Channel Allocation (DCA). The first step to perform DCA is estimating the channel quality, so that the network nodes can decide if a channel change is needed, and the best channel to be used. This paper proposes a distributed approach with nodes dedicated to monitor channel quality, by using the Received Signal Strength Indication (RSSI) and the Link Quality Indicator (LQI) to identify low quality channels. This approach is acceptable in industrial WSN, since the network deployment can be performed with adequate planning. Furthermore, the sensor nodes do not need to stop their operation for monitoring the channel quality. As a first step, experiments were performed in a real industrial environment to identify the relation between RSSI and LQI traces, and the Packet Error Rate for different channels, by using IEEE 802.15.4 radios operating in the 2.4 GHz band.

关键词： Interference Wireless sensor networks Channel estimation Measurement Transceivers Monitoring IEEE 802.15 Standards

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