Vacuum Test Chamber
Mostrando 1-8 de 8 artigos, teses e dissertações.
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1. INFLUÊNCIA DO ENVELHECIMENTO ACELERADO EM FLARES MAGNÉSIO/PTFE/FPM
Magnesium/PTFE/FPM decoy flares, also named conventional flares, were designed in order to protect combat aircraft from the threat caused by infrared-guided missiles. Adverse storage or transport conditions may cause reactions that deteriorates chemical properties of the conventional flares, causing the aging and compromising its performance. The aim of this
Quím. Nova. Publicado em: 2017-09
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2. Determination fo the configuration of excited Alfvén waves in tokamak TCABR / Determinação da configuração de ondas de alfvén excitadas no tokamak TCABR
In order to enhance the efficiency of the TCABRs Alfvén waves heating system, called AWES - Alfvén Waves Excitement System a diagnostics for determining the radio-frequency power applied to the plasma and a processing circuit for the magnetic coil system was built, characterized, installed and put into operation. The RF diagnostics system was designed to d
Publicado em: 2007
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3. Sistemas de controle difuso com escalonamento de ganhos parametrizado pela referência (FRGS) / Fuzzy reference gain-scheduling (FRGS) control systems
Uma nova classe de sistemas de controle difuso não-lineares e adaptativos denominada sistemas de controle difuso com escalonamento de ganhos indexados pela referência (FRGS), que combina as características adaptativas de controladores com escalonamento de ganhos e as características não-lineares do método de controladores difusos (fuzzy), a proposta. A
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 13/06/2006
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4. Sistemas de controle difuso com escalonamento de ganhos parametrizado pela referência (FRGS) / Fuzzy reference gain-scheduling (FRGS) control systems
Uma nova classe de sistemas de controle difuso não-lineares e adaptativos denominada sistemas de controle difuso com escalonamento de ganhos indexados pela referência (FRGS), que combina as características adaptativas de controladores com escalonamento de ganhos e as características não-lineares do método de controladores difusos (fuzzy), a proposta. A
Publicado em: 2006
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5. Influence of the recast and different marginal configurations in the cervical and interior adaptation of Ni-Cr alloy total metallic crowns / Influencia da refusão de uma liga de niquel-cromo na adaptação cervical e interna de coroas totais com diferentes configurações marginais
The aim of the present study was to verify the influence of the heat source on the castability and hardness of a Ni-Cr-based commercial alloy ? VERA BONO II - in three different conditions: new (first use), recast, and new mixed with scraps. In order to evaluate castability, 10 specimens were made for each alloy condition, using a polyester sieve with 11x11
Publicado em: 2005
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6. Vacuum-cleaning System for Isolation Chambers
To encourage the utilization of the isolation chamber as a research tool, the cost of its use should be lowered. Methods and devices must be developed which make more efficient use of the space within the isolator and allow the operator to work more effectively in this confined area. A simple vacuum-cleaning system is described; it consists of a nozzle and f
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7. Evaluation of a class III biological safety cabinet for enclosure of an ultracentrifuge.
An evaluation of a special safety cabinet housing a high-speed centrifuge was made. The cabinet enclosed both the top access port and the drive and pumping machinery of the centrifuge. A titanium rotor was loaded with tubes containing a bacterial culture, weakened, and driven until rotor rupture occurred. There were several bent and broken components in the
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8. Vapor-phase hydrogen peroxide as a surface decontaminant and sterilant.
The feasibility of utilizing vapor-phase hydrogen peroxide (VPHP) as a surface decontaminant and sterilant was evaluated in a centrifuge application. The prototype VPHP decontamination system, retrofitted into a Beckman L8-M ultracentrifuge, was designed to vaporize a 30% (wt/wt) solution of aqueous hydrogen peroxide continuously injecting and withdrawing VP