Complex Circuits
Mostrando 1-12 de 99 artigos, teses e dissertações.
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1. Editorial: A peste bufônica
Abstract Between the 14th and the 15th centuries, Portugal and Spain came up with the technological and pre-capitalistic conditions, which will allow them to initiate the Atlantic opening and the establishment of transatlantic trade. In the wake of this new economic order, trans-Saharan trade is going to adapt, through different accommodation methods, which
Varia hist.. Publicado em: 2020-08
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2. Le commerce transsaharien et ses logiques d’accommodation par rapport au commerce transatlantique entre le XVe et le XIXe siècle
Abstract Between the 14th and the 15th centuries, Portugal and Spain came up with the technological and pre-capitalistic conditions, which will allow them to initiate the Atlantic opening and the establishment of transatlantic trade. In the wake of this new economic order, trans-Saharan trade is going to adapt, through different accommodation methods, which
Varia hist.. Publicado em: 2020-08
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3. Sistema computadorizado para deslocamento de amostra com motor de passo utilizando o L298: aplicação na técnica de varredura-Z
Resumo Neste trabalho vamos abordar uma nova tecnologia, de baixo custo, de controle de motor de passo via computador, a qual pode ser utilizada para movimentação de amostras. Mais especificamente, desenvolvemos um sistema de controle usando o módulo eletrônico comercial L298, que evita o uso de um circuito eletrônico tradicional complexo de múltiplos
Rev. Bras. Ensino Fís.. Publicado em: 18/04/2019
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4. Electrical Conductivity in the KDP, ADP, and K1-x(NH4)xH2PO4 Crystals
Impedance Spectroscopy was performed to examine the electrical conductivity on KH2PO4 KDP, (NH4)H2PO4 ADP and K1-x(NH4)xH2PO4 (x = 0.076, 0.118, 0.357, 0.857, 0.942) crystals with increasing temperature. They were grown by solvent evaporation method. Zview simulation software was used to theoretically fit electrical conductivity results as a function of freq
Mat. Res.. Publicado em: 23/02/2017
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5. Glial scar-modulation as therapeutic tool in spinal cord injury in animal models
Abstract Purpose: Spinal Cord injury represents, in veterinary medicine, most of the neurological attendances and may result in permanent disability, death or euthanasia. Due to inflammation resulting from trauma, it originates the glial scar, which is a cell interaction complex system. Its function is to preserve the healthy circuits, however, it creates
Acta Cir. Bras.. Publicado em: 2017-02
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6. Design of conformal cooling for plastic injection moulding by heat transfer simulation
The cooling channels of a mold for plastic injection have to be as close as possible to the part geometry in order to ensure fast and homogeneous cooling. However, conventional methods to manufacture cooling channels (drilling) can only produce linear holes. Selective laser melting (SLM) is an additive manufacturing technique capable to manufacture complex c
Polímeros. Publicado em: 2015-12
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7. Electromechanical Impedance - Based Structural Health Monitoring Instrumentation System Applied to Aircraft Structures and Employing a Multiplexed Sensor Array
ABSTRACT: The electromechanical impedance method has been seen as a promising tool for structural health monitoring regarding different types of structures and purposes. Most importantly, this method can be used in real-time applications. Frequently, massive, high-cost, single-channel impedance analyzers are used to process the time domain data, aiming at ob
J. Aerosp. Technol. Manag.. Publicado em: 2015-09
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8. Modernizações seletivas e os circuitos espaciais da economia urbana: cidades e prisões no atual período tecnológico
In the current technical-scientific-informational period, the relations between the territory of the cities and prisons are quite complex. They are constituted from different spatial circuits, beyond the contiguous boundaries of the immediate surroundings of prisons. As control and punishment tools, currently, prisons are central objects in various uses, pra
urbe, Rev. Bras. Gest. Urbana. Publicado em: 2015-08
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9. Geração de b-splines via FPGA / B-spline generation via FPGA
The b-splines are used in CAD/CAM/CAE systems to represent and define complex curves and surfaces, being adopted by the main computer graphics standards due to features like compact mathematic representation, flexibility and affine transformations. In 3D acquisition systems and integrated CAM-CNC systems, the use of the b-spline in the geometric information
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 10/08/2012
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10. Vibration energy harvesting using piezoelectric transducer and non-controlled rectifiers circuits
Vibration energy harvesting with piezoelectric materials is of practical interest because of the demand for wireless sensing devices and low-power portable electronics without external power supply. For practical use of vibration energy harvester with piezoelectric materials, it is necessary to process the alternating current (AC) by using different rectifie
J. Braz. Soc. Mech. Sci. & Eng.. Publicado em: 2012
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11. Monitoração dinâmica de asserções para depuração em silício
The increasing demand for shorter time-to-market, combined with increased complexity and performance requirements put a tremendous pressure on post-silicon debug, which is usually the last step prior to chip release. In contrast to pre-silicon techniques, postsilicon debug have two main limitations, controllability and observability, which cause the failure
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 08/08/2011
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12. Data processing section for microprocessor-like integrated circuits
A methodology for the design of complex logic VLSI circuits is presented. The target application is deseribed by an algorithm from which the structures of the control section and the data processing section of the integrated circuit are inferred. The Srchltectural aspects are discussed and a model is proposed. A set of functional cells is then presented whic
Publicado em: 2011