Dual Mode Control
Mostrando 1-12 de 15 artigos, teses e dissertações.
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1. LCL-T Resonant Converter Based on Dual Active Bridge Topology in Solar Energy Applications
ABSTRACT: Resonant LCL-T converter can operate as stable voltage source, being fed from current, for instance, the photovoltaic battery. It is shown that LCL-T resonant tank has intrinsic ability to convert stable AC current into stable AC voltage thus parametrically regulating output voltage at a fixed value. This mode of operation is made possible by the u
J. Aerosp. Technol. Manag.. Publicado em: 2017-06
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2. Efeito do protocolo de ativação da polimerização e envelhecimento acelerado em algumas propriedades de cimentos resinosos / Effects of polymerization activation protocol and accelerated aging in some resin cements properties
The study aimed to evaluate the effects of curing protocol and accelerated aging on some properties of dual-cure resin cements. Additionally, the effects of different ambient temperature and aging on the working and setting times were investigated when cements were self-cured only. Properties evaluated were degree of conversion as determined by FTIR-ATR spec
Publicado em: 2010
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3. Effect of light-curing method and indirect veneering materials on the Knoop hardness of a resin cement
This study evaluated the Knoop hardness of a dual-cured resin cement (Rely-X ARC) activated solely by chemical reaction (control group) or by chemical / physical mode, light-cured through a 1.5 mm thick ceramic (HeraCeram) or composite (Artglass) disc. Light curing was carried out using conventional halogen light (XL2500) for 40 s (QTH); light emitting diode
Brazilian Oral Research. Publicado em: 2009-06
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4. Influence of energy density of different light sources on knoop hardness of a dual-cured resin cement
The purpose of this study was to evaluate the Knoop hardness of a dual-cured resin-based luting cement irradiated with different light sources as well energy density through a ceramic sample. Three light-curing unit (LCUs) were tested: tungsten halogen light (HAL), light-emitting diode (LED) and xenon plasma-arc (PAC) lamp. Disc-shaped specimens were fabrica
Journal of Applied Oral Science. Publicado em: 2008-06
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5. Controlador em modo dual adaptativo robusto - DMARC
Neste trabalho é apresentada uma proposta de um controlador, denominado Controlador em Modo Dual Adaptativo Robusto (DMARC), que estabelece uma ligação entre um controlador adaptativo por modelo de referência (MRAC) e um controlador adaptativo por modelo de referência e estrutura variável (VS-MRAC). A idéia básica é incorporar as vantagens de desemp
Publicado em: 2008
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6. Análise das Correntes do PMSM Acionado pelo Controle do Inversor de Modo Dual na Região de Potência Constante para Avaliação do Torque Pulsante
Este trabalho trata da análise do torque pulsante na Máquina Síncrona de Ímã Permanente - PMSM acionada pelo Controle do Inversor de Modo Dual - DMIC em uma ampla faixa de velocidade na região de potência constante. O princípio de operação do DMIC acionando o PMSM na região de potência constante é descrito. São apresentados os resultados analí
Publicado em: 2006
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7. Optimum pacing mode for patients with angina pectoris.
A within patient double blind prospective study of symptoms and exercise tolerance was designed to determine the preferred pacing mode in 10 patients with programmable dual chamber pacemakers who also had angina pectoris. Patients were randomly allocated to one month in each of the following modes: ventricular pacing at 70 beats/min (VVI) or atrioventricular
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8. Dual mode of degradation of Cdc25 A phosphatase
The Cdc25 dual-specificity phosphatases control progression through the eukaryotic cell division cycle by activating cyclin-dependent kinases. Cdc25 A regulates entry into S-phase by dephosphorylating Cdk2, it cooperates with activated oncogenes in inducing transformation and is overexpressed in several human tumors. DNA damage or DNA replication blocks ind
Oxford University Press.
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9. Cell viability and probe-cell membrane interactions of XR1 glial cells imaged by atomic force microscopy.
As atomic force microscopy (AFM) imaging of live specimens becomes more commonplace, at least two important questions arise: 1) do live specimens remain viable during and after AFM, and 2) is there transfer of membrane components from the cell to the AFM probe during probe-membrane interactions? We imaged live XR1 glial cells in culture by single- or dual-pa
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10. Escherichia coli 6S RNA gene is part of a dual-function transcription unit.
The gene coding for the metabolically stable 6S RNA of Escherichia coli has been cloned, sequenced, and partially characterized in expression analyses. The DNA sequence results confirm the accuracy of the previously established RNA sequence and, with genomic hybridization data, reveal that there is only one copy of the 6S DNA in the chromosome. Consistent wi
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11. Function and hydrostatics in the telson of the Burgess Shale arthropod Burgessia
Burgessia bella is a characteristic Burgess Shale arthropod (508 Ma), but the unusual preservation of its telson in both straight and bent modes leads to contradictory interpretations of its function. A reinvestigation of the fossil material, including burial attitudes, combined with a comparison with the decay sequence and mechanics of the telson in livin
The Royal Society.
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12. Evaluation of six minute walking test in patients with single chamber rate responsive pacemakers.
OBJECTIVE--To validate a simplified exercise protocol (the six minute walk) as a means of evaluating pacing modes and rate responsive pacemakers. DESIGN--Two groups of patients with different pacemaker types (activity and dual sensor) were randomly assigned to four consecutive pacing settings (fixed rate--or VVI at 60, 85, and 110/min, and optimal rate respo