Passive Filtering
Mostrando 1-4 de 4 artigos, teses e dissertações.
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1. USING PASSIVE AND ACTIVE MULTISPECTRAL SENSORS ON THE CORRELATION WITH THE PHENOLOGICAL INDICES OF COTTON
ABSTRACT: The investment in precision agriculture technologies has been growing as well the investment in vegetation index sensors with different types of data collection. This study aimed to evaluate the NDVI potential use obtained from passive and active multispectral sensors as phenological parameters indicator of cotton growth. The experiment was conduct
Eng. Agríc.. Publicado em: 2017-08
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2. Análise comparativa entre filtros híbridos aplicados a cicloconversores em uma siderúrgica
Em siderúrgicas que utilizam o processo de laminação de tiras a quente, é muito comum o uso de cicloconversores com potências nominais da ordem de megawatts, para o acionamento de motores síncronos. Os cicloconversores absorvem uma corrente distorcida da rede elétrica, causando assim uma distorção de tensão no ponto de acoplamento comum (PAC) e in�
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 20/07/2009
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3. Propostas de procedimentos para projetar filtros harmônicos a partir de um programa de penetração harmônica, incluindo cálculos de desempenho e de suportabilidade
This work introduces some proposals for the design of harmonic filters from a harmonic penetration computer program. Such procedures are developed by means of optimized techniques, taking in account, among other aspects, the filtering performance, the filter detuning as well as international guides referring to the supportability of the filter components, as
Publicado em: 2007
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4. Microengineered hydromechanical cochlear model
Micromachined fluid-filled variable impedance waveguides intended to mimic the mechanics of the passive mammalian cochlea have been fabricated and experimentally examined. The structures were microfabricated with dimensions similar to those of the biological system. Experimental tests demonstrate acoustically excited traveling fluid-structure waves with phas
National Academy of Sciences.