Synchronization Networks
Mostrando 1-12 de 28 artigos, teses e dissertações.
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1. Optimizing the Communication Capacity of a Ground Station Network
ABSTRACT: Small satellites are growing in use for educational, scientific, and commercial purposes, usually in Low Earth Orbit (LEO) flights, given their lower costs and associated risks, as well as smaller lead times for assembling and testing. However, the typically short periods of LEO passes bring the need to find ways of optimizing the communication bet
J. Aerosp. Technol. Manag.. Publicado em: 09/05/2019
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2. Isochronal synchronization of delay-coupled chaotic systems and networks
A sincronização estável de redes tem papel central em diversos fenômenos de interesse científico, e.g., arritmias cardíacas, crises epiléticas e o desempenho de atos cognitivos no cérebro. Assim, a estabilidade da sincronização e as condições que levam às fronteiras de instabilidade são tópicos de interesse científico considerável. Entretant
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 29/02/2012
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3. Relações da estrutura de redes complexas com as dinâmicas do passeio aleatório, de transporte e de sincronização / Relationships between the structure of complex networks and the random walk, transport and synchronization dynamics
O relacionamento entre estrutura e dinâmica em redes complexas foi considerado utilizando-se uma ampla gama de diferentes técnicas. Diversas redes reais foram estudadas em termos das correlações entre grau e atividade. A medida de atividade é definida como a proporção de visitas por vértice no regime estacionário do passeio aleatório simples. O est
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 13/12/2011
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4. Planejamento e gerenciamento de recursos para redes IEEE 802.16 baseadas em rádio sobre fibra / Resource planning and management for IEEE 802.16 networks based on radio over fiber
The Radio over Fiber technology allows the reduction of the cost of installation and maintenance of wireless access networks, since it can allow an optimized use of radio frequency (RF). Moreover, it employs simplified and inexpensive antennas. The IEEE 802.16 wireless networks, known as WiMAX, are low cost solutions for the last mile access to the Internet.
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 17/06/2011
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5. Redes de redistribuição de sinais a partir de redes de freqüência única (SFN)
This dissertation presents details of a structure needed to create a Single Frequency Network (SFN) using low-power transmitters, and a comparison with a network composed of a single transmitter with high power. Among the difficulties to implement networks which distribute signals in SFN, has prioritized the synchronization issue and equalization techniques
Publicado em: 2010
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6. Networks with spatio temporal dynamics in computer sciences / Redes com dinâmica espaço-temporal e aplicações computacionais
In the last decades, an increasing interest in complex system study has been witnessed. Such systems have at least two integrated fundamental components: individual dynamical elements and an organizational structure which defines the form of interaction among those elements. Due to the dynamics of each element and the coupling complexity, various spatial-tem
Publicado em: 2009
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7. A comunidade de esfingídeos (Lepidoptera, Sphingidae) e plantas esfingófilas numa área de cerrado no sudeste do Brasil: biogeografia e associações mutualísticas / The hawkmoth (Lepidoptera, Sphingidae) and hawkmoth-flower plant community in a Cerrado area of southeastern Brazil: biogeography and mutualistic associations
Hawkmoths (Lepidoptera, Sphingidae) are among the major pollinators in tropical communities. However, in the Cerrado biome little is known about their distribution, species composition, diversity, as well as, their relationships with hawkmoth-flower plant flora. This study aim to describe the hawkmoth fauna and hawkmoth-pollinated plant flora of a Cerrado ar
Publicado em: 2008
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8. DEVELOPMENT OF AN ERROR ANALYZER FOR OPTICAL ETHERNET NETWORKS / DESENVOLVIMENTO DE UM ANALISADOR DE ERRO PARA REDES ETHERNET ÓPTICA
The objective of this dissertation consist on development of an error analyzer for Optical Networks by the use of programmable integrated circuits operating in Gigabit rates. The main sources of error, the techniques of BER measurement and the performance evaluation of the electric and optical links in telecommunication networks are described and characteriz
Publicado em: 2007
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9. Mutually connected DPLL networks: modelling, simulation and optimization. / Redes mutuamente conectadas de DPLLs: modelagem, simulação e otimização.
Clock-distribution is an essential feature in many engineering applications as, for example, telecommunications networks and digital integrated circuits. In the last few decades this problem was predominantly addressed using master-slave strategies. In this type of strategy there are precise reference oscillators in the network called masters and their signa
Publicado em: 2007
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10. Um middleware reconfigurÃvel para redes de sensores sem fio
The WSN attractivity for environment conditions monitoring and to be the bridge between the physical and virtual world has been increasing due to the advances in the micro-electronics, which enabled the production of several sensor types like illumination, humidity, temperature, smoke, radiation, acoustic, seismic, etc. in a chip that processes the signal an
Publicado em: 2006
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11. Baixa dimensionalidade numa rede de neurÃnios de FitzHugh-Nagumo
A atividade de um conjunto de neurÃnios interligados à um problema de atual interesse que pode ser abordado com uma descriÃÃo detalhada dos neurÃnios da populaÃÃo ou, estudando a dinÃmica da resposta dessas populaÃÃes sim descrever em detalhe o comportamento individual dos neurÃnios. O modelo de Wilson-Cowan consiste em equaÃÃes para as taxas de
Publicado em: 2006
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12. Avaliação da eficiência de métodos de coordenação semafórica em vias arteriais / Performance analysis of traffic signal synchronization methods for arterial streets
Traffic signal synchronization strategies are useful to improve traffic flow mobility and level of service of arterial streets. Therefore, technicians in charge of management of the traffic system operation should take advantage of the benefits of these tools, as always as possible, in order to define the most adequate traffic signal offsets. However, interv
Publicado em: 2005