Communication System Analysis
Mostrando 25-36 de 333 artigos, teses e dissertações.
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25. Formation Flight Control of Multi-UAV System with Communication Constraints
ABSTRACT Three dimensional formation control problem of multi-UAV system with communication constraints of non-uniform time delays and jointly-connected topologies is investigated. No explicit leader exists in the formation team, and, therefore, a consensus-based distributed formation control protocol which requires only the local neighbor-toneighbor informa
J. Aerosp. Technol. Manag.. Publicado em: 2016-06
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26. Maximum Power Transfer versus Efficiency in Mid-Range Wireless Power Transfer Systems
AbstractThe condition for maximum power transfer of 2-coils wireless power transfer (WPT) system is derived from circuit analysis and discussed together with the respective WPT system efficiency (η). In the sequence, it is shown that a 4-coils WPT system (which can be divided in source, two communication and load circuits) without power losses at the two co
J. Microw. Optoelectron. Electromagn. Appl.. Publicado em: 2015-06
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27. CRITICAL FACTORS IN THE IMPLEMENTATION PROCESS OF INTEGRATED MANAGEMENT SYSTEMS
This study is the result of research whose purpose was to study the implementation process of integrated management systems, called ERP Enterprise Resource Planning in the business environment. This study, more specifically, tried to identify the variables in this process and that, somehow, made it easy or caused some type of difficulty implementing the syst
JISTEM J.Inf.Syst. Technol. Manag.. Publicado em: 2015-04
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28. Recent trends in intelligent transportation systems: a review
Abstract Managing the increasing traffic is a big problem all over the world. Intelligent Transportation System (ITS) provides solution to these problems with the help of new technologies. ITS is an integrated system that implements a broad range of communication, control, vehicle sensing and electronics technologies to solve and manage the traffic problems.
J. Transp. Lit.. Publicado em: 2015-04
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29. Las prácticas de citación como interpretantes semióticos de acreditación de saberes locales en astronomía: México 1952-1972
We studied the scientific literature in the field of astronomy published in the Mexican Journal, Boletín de los Observatorios de Tonantzintla y Tacubaya, from 1952 to 1972. We analyzed the articles published during this important period of great changes in the production and dissemination of scientific knowledge. Our goal is to identify affiliation practice
Transinformação. Publicado em: 2014-12
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30. Telegenetics: application of a tele-education program in genetic syndromes for Brazilian students
With the high occurrence of genetic anomalies in Brazil and the manifestations of communication disorders associated with these conditions, the development of educative actions that comprise these illnesses can bring unique benefits in the identification and appropriate treatment of these clinical pictures. Objective The aim of this study was to develop a
J. Appl. Oral Sci.. Publicado em: 2014-12
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31. La comunicación científica en Uruguay: estudio de las publicaciones de los investigadores activos del Sistema Nacional de Investigadores (2009-2010)
Scholarly communication in Uruguay was studied considering the publications reported in the researchers' curricula vitae from the National System of Researchers of the National Agency for Research and Innovation of Uruguay. An ad-hoc database was developed, where data relative to variables such as field of knowledge, kind of publication, type of responsibili
Transinformação. Publicado em: 2014-08
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32. Brain-computer interface: proposal of a shaping-based training
INTRODUCTION: Persons affected by certain motor disabilities such as amyotrophic lateral sclerosis can evolve with important motor and speech difficulties in communication. A BCI (Brain Computer Interface) is a system that allows interaction between the human brain and a computer, permitting the user to control a communication channel through his or her brai
Rev. Bras. Eng. Bioméd.. Publicado em: 2013-06
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33. An Asynchronous Interface with Robust Control for Globally-Asynchronous Locally-Synchronous Systems
ABSTRACT: Contemporary digital systems must necessarily be based on the "System-on-Chip" (SoC) concept. Especially in relation to the aerospace industry, these systems must overcome some additional engineering challenges concerning reliability, safety and low power. An interesting style for aerospace SoC design is the GALS (Globally Asynchronous, Locally Syn
J. Aerosp. Technol. Manag.. Publicado em: 2013-03
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34. Uso de hardware de código fonte aberto "Arduino" para acionamento de dispositivo solenoide em sistemas de análises em fluxo
This paper describes the use of the open source hardware platform, denominated "Arduino", for controlling solenoid valves for solutions handling in flow analysis systems. System assessment was carried out by spectrophotometric determination of iron (II) in natural water. The sampling rate was estimated as 45 determinations per hour and the coefficient of var
Quím. Nova. Publicado em: 2013
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35. Sistemas CDMA ópticos coerentes baseados em codificação de fase espectral / Coherent optical CDMA systems based on spectral phase coding
In this work we perform a comprehensive analysis of a spectral phase-encoded time spreading optical code division multiple access (SPECTS-OCDMA) system. Despite being a numerical study, efforts were concentrated on the investigation of more realistic scenarios using as much information as possible from implemented test-beds in laboratories. In this context,
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 11/12/2012
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36. Assessment Methodology for E-Government Technical Interoperability Maturity Level. / Metodologia para AferiÃÃo do NÃvel de Maturidade Associado à Interoperabilidade TÃcnica nas AÃÃes de Governo EletrÃnico.
The unstructured and unplanned implementation of technological solutions leads to wastage of resources and imposes itself as a barrier to achieving the potential benefits of information technologies and communication. The problem increases when managers who operate these technologies are part of the public administration, as structural issues make this scena
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 23/11/2012