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IEEE International Conference on Consumer Electronics - Berlin (ICCE-Berlin)

作者： Bruna M. J. C. Vilar Arthur V. De N. Silva Igor M. B. Ulisses Jaidilson Jó da Silva Angelo Perkusich Fred M. Bublitz Post-Graduate Program in Electrical Engineering - PPgEE - COPELE Embedded Systems and Pervasive Computing Laboratory Center of Electrical Engineering and Informatics Universidade Federal de Campina Grande Campina Grande PB BR Embedded Systems and Pervasive Computing Laboratory Center of Electrical Engineering and Informatics Federal University of Campina Grande Campina Grande Brazil Electrical Engineering Department (DEE) Paraíba State University (UEPB)

Power policies are widely applied at computer systems such as desktops, notebooks, and smartphones. For example, the timeout policy to turn off the display. A power management policy must be tested by measuring the power consumption of an experimental platform running workloads. Such tests must be fast enough to feedback the development process with valuable information about the power policy performance. In this work, we have presented a methodology for estimating computer systems power consumption for time scaled experiments. Using the proposed methodology, we have reduced the overall time for developing a power management policy.

关键词： Computers Power demand Switches Power measurement Indexes Time measurement Turning

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Investigation on Dynamic Voltage Restorers With Two DC-Links and Series Converters for Three-Phase Four-Wire Systems

Investigation on Dynamic Voltage Restorers With Two DC-Links...

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IEEE Energy Conversion Congress and Exposition

作者： Gregory A. A. Carlos Cursino B. Jacobina Euzeli C. dos Santos Department of Control and Industrial Process Federal Institute of Alagoas (IFAL) Palmeira dos Indios - 57601-220 - Alagoas - Brazil Post-Graduate Program in Electrical Engineering - PPgEE - Copele Department of Electrical Engineering Federal University of Campina Grande (UFCG) Campina Grande - 58429-900 - Paraiba - Brazil Department of Electrical and Computer Engineering Purdue School of Engineering and Technology (IUPI) Indianapolis - 46202-5160 - Indiana - USA

ISBN: (纸本)9781479957774

This paper proposes three dynamic voltage restorer (DVR) topologies. Such configurations are able to compensate voltage sags/swells in three-phase four-wire (3P4W) systems under balanced and unbalanced conditions. The proposed systems in this work use two independent dc-links. The complete control system, including the PWM technique, is developed and comparisons between the proposed configurations and a conventional one are performed. Simulation and experimental results are provided to validate the theoretical approach.

关键词： Vectors Topology Pulse width modulation Switches Inverters Capacitors Insulated gate bipolar transistors

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Microscopic simulation analysis of Mainstream Traffic Flow Control with Variable Speed Limits

Microscopic simulation analysis of Mainstream Traffic Flow C...

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2013 16th International IEEE Conference on Intelligent Transportation Systems: Intelligent Transportation Systems for All Modes, ITSC 2013

作者： Muller, Eduardo R. Carlson, Rodrigo C. Kraus, Werner Papageorgiou, Markos Post-graduate Program in Automation and Systems Engineering Federal University of Santa Catarina Florianópolis-SC 88040-900 Brazil Post-graduate Program in Automation and Systems Engineering Center for Mobility Engineering Federal University of Santa Catarina Joinville-SC 89218-000 Brazil Department of Production Engineering and Managament Technical University of Crete Chania 73132 Greece

ISBN: (纸本)9781479929146

Mainstream Traffic Flow Control (MTFC) with Variable Speed Limits (VSL) is a freeway traffic control method which aims to maximize throughput by regulating the mainstream flow upstream from a bottleneck. Recent studies in a macroscopic simulator have shown optimal and feedback MTFC potential to improve traffic conditions. In this paper, local feedback MTFC is applied in microscopic simulation for an on-ramp merge bottleneck. Traffic behavior reveals important aspects that had not been previously captured in macroscopic simulation. Mainly, the more realistic VSL application at specific points instead of along an entire freeway section produces a slower traffic response to speed limit changes. In addition, the nonlinear speed limit-flow relation observed in the microscopic model is more pronounced than what was observed at the macroscopic level. After appropriate modifications in the control law significant improvements in traffic conditions were obtained. © 2013 IEEE.

关键词： Feedback

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AC-DC-AC Three-Phase Converter Based on Three Three-Leg Converters Connected in Series

AC-DC-AC Three-Phase Converter Based on Three Three-Leg Conv...

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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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Innovation in offering engineering course: The creation of the Center for engineering Mobility (CEM) in Joinville (SC-BR) 22

Innovation in offering engineering course: The creation of t...

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22nd International Conference on Production Research, ICPR 2013

作者： Garcia, Janaina Renata Ferreira, Nubia Alves De Carvalho Lezana, Álvaro Guillermo Rojas Production Engineering Post-Graduate Program Department of Production Engineering Santa Catarina Federal University Caixa Postal 476 Florianópolis SC88040-900 Brazil

The program Support Plan Restructuring and Expansion of Brazilian Federal Universities (REUNI) allowed the expansion of course offerings and the number of university students in Brazil. In this sense, the participation of the Federal University of Santa Catarina allowed the creation and installation of new campuses Araranguá, Curitibanos and Joinville in 2009. The engineering Center for Mobility (CEM), installed on campus in the city of Joinville, had based their design limitations related to infrastructure in Brazil. Mobility engineering is a field of knowledge that deals with the development of technical systems and vehicular transportation infrastructure whose function is to transport people, products and information. This is a qualitative study, with analysis of documents and searches the sites, papers. In Political Pedagogical Project are offered three cycles of knowledge, the first two years of basic training and disciplines of engineering, the second course of a year, with disciplines that enable specific skills, and the third two-year cycle and how engineers in seven specialties (Naval and Oceanic engineering, Aeronautics and Space, Automotive, Railway, Mechatronics;Traffic and logistics, and transportation infrastructure). The objective of this paper is to analyze the innovative aspects of the political pedagogical project of CEM/UFSC, one of the organization in cycles with the training of engineers at the end of the fifth year of study, and also allows an exit for intermediate students who do not most want to complete engineering, at the end of the second cycle. In this case they can apply for graduation Bachelor of Interdisciplinary Mobility emphasis on training: vehicular or transport. Thus formed technicians and engineers, these professionals in underserved areas and with strong impact on the country's development.

关键词： Engineers

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The creation of the technological innovation park in Joinville and region-SC/Brazil 22

The creation of the technological innovation park in Joinvil...

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22nd International Conference on Production Research, ICPR 2013

作者： Ferreira, Nubia Alves De Carvalho Garcia, Janaina Renata Lezana, Álvaro Guillermo Rojas Production Engineering Post-Graduate Program Department of Production Engineering Santa Catarina Federal University Caixa Postal 476 Florianópolis SC88040-900 Brazil

The University is considered as playing a relevant role in the local context, as well as collaborating for the regional development due to its plural character. The Federal Universities are formal institutions that follow specific rules and regulations and are present in all Brazilian states aiming at educating professionals to meet the country's needs. Although being country-wide organizations, their action is local. A Federal University may be considered as a driver for local and regional development. Additionally, the institution has innovative principles and follows them, as is the case of UFSC (Santa Catarina Federal University) campus in Joinville-SC/BR. The aim of this paper is to analyze the creation of the Inovaparq in the light of the Triple Helix (TH) since the implementation of the Mobility engineering Center at UFSC. To this end, we adopted a qualitative approach as a method, with bibliographical and documental research, being configured as a case study. As a result of this action, there are the establishment of an Technological Innovation Park in Joinville and Region (Inovaparq), two public notices and some companies that had already working at Inovaparq platforms. The success of the incubated companies in Inovaparq is also an important outcome of this venture.

关键词： Parks

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Proposal of methodology for analysis of stress level based on EEG signals

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BMC Proceedings 2014年第4期8卷 1-1页

作者： Alexandre Pomer-Escher Teodiano Bastos-Filho Maria Dolores Souza Post-Graduate Program in Biotechnology Federal University of Espirito Santo Vitoria Espirito Santo 29650000 Brazil Post-Graduate Program in Electrical Engineering Federal University of Espirito Santo Vitória spirito Santo 29075910 Brazil Post-Graduate Program in Psychology Federal University of Espirito Santo Vitória Espirito Santo 29075910 Brazil

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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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Analysis of synthetic natural gas injection into charcoal blast furnace

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Journal of Materials Research and Technology 2013年第3期2卷 255-262页

作者： Rocha, Elisa Pinto Da Guilherme, Vagner Silva De Castro, José Adilson Sazaki, Yasushi Yagi, Jun-Ichiro Post-Graduation Program in Metallurgical Engineering Universidade Federal Fluminense Volta Redonda RJ Brazil Environmental Metallurgy Laboratory Graduate Institute of Ferrous Technology Pohang University of Science and Technology Pohang Korea Republic of Tohoku University Sendai Japan

Recently, the synthetic natural gas (SNG) has been available for large consumers in the Brazilian domestic market. The SNG is a suitable fuel with potential use to several processes and facilities of the steel industry. This paper investigates the injection of SNG into charcoal blast furnaces as a substitute for granular charcoal charged from the top and pulverized charcoal injections with potential increase of productivity and decrease of specific CO2 emissions. In order to study the effect of replacement of granular charcoal and injection of pulverized charcoal the well known Blast Furnace Five Fluid Model (BF-FFM) is applied to describe detailed phenomena within the process. This model treats the blast furnace as a five-phase reactor, accounting for gas, lump solids (raw iron ore, sinter, pellets and granular charcoal), hot metal, pulverized charcoal, and molten slag. The model is based on conservation equations for mass, momentum, energy and chemical species numerically solved based on the finite volume method (FVM). The SNG has high amount of H2 and strongly affects the inner conditions of the reactor and only a comprehensive model with detailed chemical reaction rates can properly predict the inner parameters of the process and hence furnish useful information to design smooth operational conditions. The simulation results obtained in this study indicated that smooth operations using SNG up to 25 N m3/t of pig iron could be achieved simultaneously by increasing the productivity up to 58% and with a decrease of 40 kg/thm on the granular charcoal charged. © 2013 Brazilian Metallurgical, Materials and Mining Association.

关键词： Steelmaking

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Preliminary conceptual proposal for the development of a performance measurement system about BRT systems in Brazil 22

Preliminary conceptual proposal for the development of a per...

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22nd International Conference on Production Research, ICPR 2013

作者： Siluk, J.C.M. Neuenfeldt, A.L. Alves, V.T. Production Engineering Post-Graduate Program Federal University of Santa Maria Av. Roraima 1000 Santa-Maria Rio Grande do Sul97105900 Brazil Production Engineering Post-Graduate Program Federal University of Rio Grande Do sul Av. Osvaldo Aranha 99 Porto Alegre Rio Grande do Sul90035190 Brazil

Faced with a scenario where the growth of urban centers is increasing, the BRT system comes as a viable solution to this, enabling the development of functional bus corridors, serving to meet the demand of rapid shifts, especially in areas with high population density. However, to characterize as a system, it is necessary to measure their level of performance in the face of various aspects that are part of his characterization. For this, the article aims to study the main criteria influencers for the development of a performance measurement system for the BRT systems in Brazil, using for this the bibliographic research, technical manuals and expert opinion about the subject, focusing, at the end of this, to reveal these criteria, aiming at the future the elaboration of indicators to facilitate its performance evaluation.

关键词： Urban growth

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