Microprocessors
Mostrando 13-22 de 22 artigos, teses e dissertações.
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13. Design and construction of a current meter for field emitted electrons in vacuum for the characterization for nano-tube or nano-structured cold cathodes / Projeto e construção de um medidor de corrente de eletrons emitidos no vacuo por campo eletrico para carcterização de catodos frios constituidos por nanotubos ou nanoestruturas ;
O progresso da pesquisa científica depende da qualidade e da disponibilidade de instrumentos confiáveis e de alta precisão, necessários para a exploração quantitativa de novos fenômenos, possibilitando a construção de modelos mais avançados e mais sofisticados. Um dos fenômenos que tem despertado grande interesse é a emissão de elétrons da supe
Publicado em: 2005
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14. Analise e controle da energia eletrica atraves de tecnicas de processamento digital de sinais
Considering the areas of Power Quality and Power Conditioning, this work proposes and discusses the use of a Selective Identification Methodology in order to identify the so-called ideal, as well as the disturbing, voltage and current components in a general polyphase power system. Such methodology is presented and described by means of discrete-time signal
Publicado em: 2004
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15. Escalonamento de instruções em arquiteturas VLIW particionadas explorando Bypassing de operandos
The untiring search for faster machines, alIied to the great technological advances in the field of integrated circuits conception, brought out the Very Long Instruction Word architectures from an amorphous status to reality. Although they have appeared recently as real chips [1], the VLIW machines were idealized some decades ago [13, 16, 22, 23]. The microp
Publicado em: 2001
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16. Projeto de dissipadores de calor aletados considerando o efeito do desvio do escoamento
The thermal design of air cooled heat sinks assembled on top of microprocessors is considered in this work. The heat sinks are assumed to be made longitudinal fins of rectangular cross section with a forced airflow. The cross section of the duct may be larger than of the heat sink, so that there is a bypass of the airflow between the heat sink and the walls
Publicado em: 1998
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17. SISTEMA CYGNUS - A CONFIGURAÇÃO BÁSICA / THE CYGNUS SYSTEM - A BASIC CONFIGURATION
The use of multiple microprocessors can provide the appropriate solution to systems demanding high computing power. This essay describes the basic configuration of the CYGNUS multiprocessor system composed of a 16 bits processor module, with integrated memory management unit, and an inteligent floppy disk controller. Communication between modules is carried
Publicado em: 1986
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18. HARDWARE OF A MICROCOMPUTER FOR MULTIPROGRAMMING / HARDWARE DE UM MICROCOMPUTADOR PARA MULTIPROGRAMAÇÃO
Machine resources are shared by many processes in multiprogramming systems. The suitable environment to run these processes must include devices for address relocation, memory protection, supervisor and user modes of operation and a flexible input/output structure. It is very hard to implement such systems with 8 bits microprocessors, because their performan
Publicado em: 1982
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19. MICROPROCESSOR-CONTROLLED DIGITAL FILTERS / PROJETO DE UM BANCO DE FILTROS DIGITAIS CONTROLADO POR UM MICROPROCESSADOR
Work on digital filtering of signals has been continuously increasing and the literature presents several algorithms and structures, besides hardware implementations. Filter implementation has been greathy simplified by using microprocessors; nevertheless present filter hardware is limited in structure or order or both. This work proposes a microcomputer arc
Publicado em: 1982
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20. What does voice-processing technology support today?
This paper describes the state of the art in applications of voice-processing technologies. In the first part, technologies concerning the implementation of speech recognition and synthesis algorithms are described. Hardware technologies such as microprocessors and DSPs (digital signal processors) are discussed. Software development environment, which is a k
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21. Commercial applications of speech interface technology: an industry at the threshold.
Speech interface technology, which includes automatic speech recognition, synthetic speech, and natural language processing, is beginning to have a significant impact on business and personal computer use. Today, powerful and inexpensive microprocessors and improved algorithms are driving commercial applications in computer command, consumer, data entry, spe
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22. ParAlign: a parallel sequence alignment algorithm for rapid and sensitive database searches
There is a need for faster and more sensitive algorithms for sequence similarity searching in view of the rapidly increasing amounts of genomic sequence data available. Parallel processing capabilities in the form of the single instruction, multiple data (SIMD) technology are now available in common microprocessors and enable a single microprocessor to
Oxford University Press.