Control Architectures
Mostrando 13-24 de 55 artigos, teses e dissertações.
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13. Strategies for computational resources trading in desktop grids / Estrategias para comercialização de recursos computacionais em desktop grids
The association of idle machines in desktop grids architectures represents a significant progress in the solution of complex problems in areas as science, engineering, trade and others. The difficulty in the implementation and in the continuity of these architectures is to maintain the levels of availability demanded by their users. In its majority, the user
Publicado em: 2009
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14. Temporal resources for global quantum computing architectures
Using the methods for optimal simulation of quantum logic gates, we perform a quantitative estimation of the time resources involved in the execution of universal gate sets for the case of three representative models of quantum computation based on global control. The importance of such models stems from the solution to the problem of experimentally addressi
Brazilian Journal of Physics. Publicado em: 2008-12
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15. Uma alternativa a inundação baseada em tabelas de dispersão para planos de controle de redes opticas / A hash table based flooding alternative for optical networks control plane
The transport layer structure of the Internet is moving towards a model of highspeed routers interconnected by intelligent optical core networks. A consensus has been reached on wavelength division multiplexing (WDM) as the way to increase the transmission capacity. However there are few proposals for distributed control planes under dynamic Quality of Servi
Publicado em: 2008
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16. Transactional memories : prototyping and simulation of hardware implementations and a characterization of the problem of contention management in software / Memorias transacionais : prototipagem e simulação de implementações em hardware e uma caracterização para o problema de gerenciamento de contenção em software
As parallel architectures become prevalent in the computer industry, more and more programmers are required to write parallel programs and are thus being exposed to the problems related to the use of traditional mechanisms for concurrency control. Transactional memory has been devised as a means for easing the burden of writing parallel Programs: the program
Publicado em: 2008
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17. Monitorização e localização de defeitos na soldagem tig através do sensoriamento infravermelho
This work presents, in an exploratory form, the use of infrared emissions of the TIG arc as a parameter for process monitoring, detection and localization of defects or discontinuity during welding. A infrared sensor was used for focalizing part of the arc and weld pool and transformed the intensity of infrared radiation presented in the surrounding regions
Publicado em: 2008
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18. Future internet architecture to structure and to manage dynamic autonomous systems, internet service providers and customers
In recent years, the problem of dynamic networks has received a great deal of attention from the network research community. This problem consists in providing for the Internet architecture a set of mechanisms, such as addressing, information management and information forwarding, which support mobile information and mobile entities (Autonomous Systems, Inte
Publicado em: 2008
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19. Control system design for a gas turbine engine using evolutionary computing for multidisciplinary optimization
Multidisciplinary optimization (MDO) is concerned with complex systems exhibiting challenges in terms of organization and scale. Thus, it is well suited to be applied to complex multivariable control design. Collaborative optimization is one approach for dealing with complex multidisciplinary optimization problems. Three MDO architectures, including collabor
Sba: Controle & Automação Sociedade Brasileira de Automatica. Publicado em: 2007-12
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20. Integrated monitoring and supervision architectures applied to machining process controlled by open CNC systems / Arquiteturas para monitoramento e supervisão integrados de processos de usinagem em máquinas com controle numérico aberto
Manufacturing enterprises require complete real time and accurate monitoring of machine tool data for integrating the shop floor with other company activities, as engineering, maintenance and business. It is acknowledged that monitoring systems capabilities are unavoidable to improve product quality, to reduce production time, and to the rapid adaptation in
Publicado em: 2007
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21. Sistemas multiagentes para controle inteligente da caldeira de recuperação. / Multi-agent systems for the intelligent control of a recovery boiler.
Engineers have been introducing better support for procedures of monitoring complex conditions through the application of intelligent decentralized systems, implementing a variety of artificial intelligent techniques. Nowadays it is vastly known that these problems that are consequence of the functional complexity of monitoring conditioning can be solved tro
Publicado em: 2007
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22. Dynamic bandwidth allocation for EPON networks / Alocação dinâmica de largura de banda em redes EPON
Telecommunication networks are divided into core, metropolitan and access networks. The core and metropolitan networks use high capacity bandwidth optical fibers, while the access networks have bandwidth bottlenecks because of the use of twisted-pair wires and coaxial cable. To solve this problem and to offers the users broadband access at low cost the use o
Publicado em: 2007
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23. Um método para modelagem de controle de AMS usando redes de Petri virtuais / A modeling method for AMS control using virtual Petri Nets
An Automated Manufacturing System (AMS) is a production system where a discrete number of raws is processed and assembled by controlled machines and/or robots. Controlling AMS is a complex task, due to the several sub-systems that compose it and the need for attending strategic production issues and market. The AMS control complexity increases with the neces
Publicado em: 2006
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24. Implementação e simulação de algoritmos de escalonamento para sistemas de elevadores usando arquiteturas reconfiguráveis.
This work proposes an elevator system that allows the vertical transport of passengers in a efficient way. This approach is based on the implementation of dispatching algorithms using Reconfigurable Architectures. A fuzzy logic method was proposed in order to identify traffic patterns in the building and schedule the elevators, which was carried out by imple
Publicado em: 2006