Soft Core
Mostrando 13-24 de 49 artigos, teses e dissertações.
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13. Implementação em hardware da arquitetura do computador hipotético CESAR / Hardware implementation of the CESAR hypothetical computer architecture
O contínuo desenvolvimento de ferramentas de síntese lógica, em conjunto com o aumento da capacidade de dispositivos de hardware programável como FPGAs, permitiu o desenvolvimento de processadores soft-core, projetados especificamente para rodar nestes dispositivos. Ao mesmo tempo, linguagens de descrição de hardware, como VHDL, permitem a descrição
Publicado em: 2011
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14. SÍNTESE E CARACTERIZAÇÃO DE NiFe2O4 E EFEITOS DA DOPAGEM NA MAGNETIZAÇÃO DE SATURAÇÃO. / SYNTHESIS AND CHARACTERIZATION OF NiFe2O4 AND EFFECTS OF DOPING IN MAGNETIC SATURATION.
The ferrites are a wide class of ferrimagnetic materials with great technological importance and are studied extensively for many decades. Their remarkable magnetic characteristics make it an element often used in induction transformers by his high magnetic permeability, high values of saturation magnetization and low coercivity, resulting in smaller losses
Publicado em: 2011
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15. Sistema Embarcado para um Monitor Holter que Utiliza o Modelo PPM na Compressão de Sinais ECG
Neste trabalho, é apresentado o desenvolvimento de um sistema embarcado com prototipagem em FPGA contendo instanciação do processador soft-core Nios II (SOPC System on a Programmable Chip), para um monitor holter que implementa compressão de dados, utilizando o algoritmo PPM, e simula sinais ECG através da implementação das Séries de Fourier. Atravé
Publicado em: 2010
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16. Construção de um susceptômetro AC e a susceptibilidade magnética de microfios amorfos recobertos por vidro / Development of an AC susceptometer and magnetic susceptibility of glass covered amorphous microwires
Glass covered microwires are materials with soft magnetic properties suitable to several technological applications, specially in magnetic sensors. The main feature of these wires, with negative magnetostriction, it is the magnetic domain structure, which are studied in several research centers. In this work it was developed an AC susceptometer capable to op
Publicado em: 2010
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17. Detecção de falhas em processadores VLIW
A proposta deste trabalho é a de fornecer um método de confiabilidade de baixo cus-to para processadores VLIW, mesclando modificações no código das aplicações e no hardware do processador alvo. O método foi aplicado ao processador ρ-VEX, processa-dor VLIW embarcado soft-core desenvolvido na TU Delft (Delft University of Techno-logy). A técnica de b
Publicado em: 2010
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18. Os perpétuos e os incompletos: permanência e movimento nos gibis de super-heróis e na série Sandman
This thesis analyzes the fictional narratives of the comics books series Sandman, written by the British author Neil Gaiman, originally published by DC Comics and, in Brazil, by Globo, from 1989 to 1996, noting the translation and appropriation of elements from different cultural contexts for the construction of the narrative, in order to demonstrate that Sa
Publicado em: 2010
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19. The influence of ethoxylation degree in the behaviour of secondary alcohol ethoxylates / Influência do grau de etoxilação no comportamento de álcoois secunários etoxilados
The solubilization of non-ionic solutes via partitioning between water and the micellar pseudophase of non-ionic surfactants was evaluated for a series of secondary alcohol ethoxylates with hydrophile length varying from 7 to 40 ethylene oxide units. It was demonstrated that the micellar incorporation constant, Ks, is not dependent on the hydrophile length o
Publicado em: 2009
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20. Engenho &arte - de guerra : a inovação nas vertentes do setor de defesa
Considering the increasing importance of the innovation in the Sector of Defense in the Age of the Knowledge on account of its on strategical value to the National Security and the development of technologies of dual use, the present work has for objective to understand the process of innovation in the sector, carrying through a study of case of the Project
Publicado em: 2009
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21. A power estimation design for the Altera Nios II processor / Projeto de um estimador de potência para o processador Nios II da Altera
Nowadays, optimization of hardware and software systems does not necessarily mean increasing their computational performance. Due to the popularization of battery-operated embedded systems, energy comsumption has become a very critical issue. Several tools have been created to model, optimize, and estimate energy consumption, allowing power constraints to be
Publicado em: 2007
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22. Estudo das propriedades estruturais locais de fluidos magnéticos : da nanopartícula à dispersão
Local structural properties of magnetic fluids based on nanosized particles of zinc, copper or nickel ferrite are investigated. Nanograins prepared by a soft chemistry method are dispersed in acidic medium thanks to a core-shell strategy that prevents the particles from dissolution. Their chemical composition is no longer homogeneous and they can be describe
Publicado em: 2007
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23. Design of a soft-error robust microprocessor / Projeto de um Microprocessador Robusto a Soft Errors
O avanço das tecnologias de circuitos integrados (CIs) levanta importantes questões relacionadas à confiabilidade e à robustez de sistemas eletrônicos. A diminuição da geometria dos transistores, a redução dos níveis de tensão, as menores capacitâncias e portanto menores correntes e cargas para alimentar os circuitos, além das freqüências de r
Publicado em: 2007
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24. Analysis and implementation of SMP support (symmetric multiprocessing) for eCos operating system with application in mobile robotics / Análise e implementação de suporte a SMP (multiprocessamento simétrico) para o sistema operacional eCos com aplicação em robótica móvel
Technological development has significantly reduced the distance between the performance of systems designed using reconfigurable computing and dedicated hardware. The main sources of performance are the high density level of the FPGAs and the resources? improvement offered by manufacturers, who make more its use more attractive in a variety of applications,
Publicado em: 2007