Brake
Mostrando 1-12 de 99 artigos, teses e dissertações.
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1. Lower extremities task of pressing an “accelerator” or a “brake”: association with traffic accidents in older drivers – a preliminary study
RESUMO Os acidentes de trânsito por motoristas idosos são um problema social urgente. A Agência Nacional de Polícia (National Police Agency – NPA) no Japão institucionalizou o Teste de Função Cognitiva (teste NPA) para renovação de carteira de motorista para idosos. No entanto, a capacidade de dirigir não pode ser avaliada simplesmente por testes
Dementia & Neuropsychologia. Publicado em: 2022
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2. X-ray Scattering and Chemometrics as Tools to Assist in the Identification of Gunshot Residues by Wavelength Dispersive X-ray Fluorescence Spectrometry
Wavelength dispersion X-ray fluorescence spectrometry (WDXRF) is a non-destructive technique and therefore attractive for gunshot residues (GSR) analysis. It is well known for determination of inorganic constituents of samples. However, X-ray scattering region spectral data is not commonly used, although it may provide information about organic constituents
J. Braz. Chem. Soc.. Publicado em: 2020-12
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3. Da Hegemonia Sanitarista ao Predomínio Liberal: Investigando os Fatores que Impediram uma Inflexão Liberal na Agência Nacional de Saúde Suplementar (ANS) (2004-2014)
RESUMO Este artigo analisa a política na regulação da saúde suplementar, conduzida pela ANS. Investigamos como as disputas de poder entre sanitaristas e liberais foram transpostas para a agência a partir das nomeações políticas para os cargos de direção e como isso influenciou a regulação da ANS entre 2000 e 2014. Para caracterizar os grupos pol�
Dados. Publicado em: 09/12/2019
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4. Amorphization of Graphite Flakes in Gray Cast Iron Under Tribological Load
A gray cast iron disc, which had been submitted to a heavy duty automotive brake test, was examined with energy filtered transmission electron microscopy. A graphite flake in a convenient angular position showed the shear interaction of graphite layers with the iron matrix in nano-scale resolution. Atomic layers of graphite were wedged into the ferritic bulk
Mat. Res.. Publicado em: 28/05/2018
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5. Copper/Iron Brake Friction for Military Aircraft Application
ABSTRACT: The present study assesses the influence of non-metallic constituents and manufacturing parameters, such as compaction pressure and sintering temperature, to produce a metal matrix composite (MMC) of copper/iron, based on the brake disc of aircraft AT-29 SuperTucano. The samples were produced with six different compositions, by varying the amount o
J. Aerosp. Technol. Manag.. Publicado em: 03/05/2018
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6. Effect of Hatching Time on Yolk Sac Percentage and Broiler Live Performance
ABSTRACT This study investigated the effects of broiler chick hatching time on the percentage of the yolk sac and subsequent broiler live performance. Broiler hatching eggs were obtained from a commercial flock at 55 wk of age and were stored for 2 d at 18°C and 75% relative humidity (RH) prior to incubation. Chicks were identified as hatching Early (471-47
Braz. J. Poult. Sci.. Publicado em: 2018-04
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7. Aplicação de Técnicas de Planejamento de Experimentos para Otimização do Comportamento Tribológico e Térmico de Materiais de Atrito Durante o Processo de Frenagem
RESUMO Sistemas de freio têm a finalidade de reduzir ou manter a velocidade de um veículo, levá-lo à imobilidade ou mantê-lo imóvel. O princípio básico dos sistemas de freios por atrito é a conversão da energia cinética do veículo em energia térmica. Neste estudo, buscou-se analisar os parâmetros de operação de um sistema de freio a disco par
Matéria (Rio J.). Publicado em: 08/01/2018
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8. PERFORMANCE OF AN AGRICULTURAL DIESEL ENGINE USING DIFFERENTS FUELS
ABSTRACT The use of fuels for agricultural Diesel engines cycle, both of mineral origin (Diesel) or vegetable and animal origin (biodiesel) can significantly alter its performance. Therefore, the aim of this study was to quantify the change in torque, power and consumption of agricultural Diesel engine fuel using minerals and vegetables fuels. It was used a
Eng. Agríc.. Publicado em: 2017-02
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9. Effect of Rockwool and Steel fiber on the Friction Performance of Brake Lining Materials
ABSTRACT Wear resistance and Frictional stability are key performance requirements for brake lining. Automotive brake linings are usually made of various ingredients such as binder, filler, friction modifiers and reinforcement. Rockwool is a mineral fiber and steel fiber is a metallic fiber. In this work reinforcement fibers used are both the mineral and met
Matéria (Rio J.). Publicado em: 2016-09
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10. The effects of porosity in friction performance of brake pad using waste tire dust
Abstract This research is focused on the effect of porosity on the friction-wear properties of automotive brake pads. Waste Tire Dust (WTD) was used as a new friction material in brake pads. Newly formulated brake pad materials with five different components have been produced by conventional techniques. In the experimental studies, the change of the frictio
Polímeros. Publicado em: 2015-10
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11. Effects of material properties on generation of brake squeal noise using finite element method
AbstractThis research paper is concerned with the disc brake squeal problem for passenger cars. The aim of the present research is developing a finite element model of the disc brake assembly in order to improve understanding of the influence of Young's modulus on squeal generation. A detailed finite element model of the whole disc brake assembly that integr
Lat. Am. j. solids struct.. Publicado em: 2015-08
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12. Thermal load effects on fatigue life of a cracked railway wheel
AbstractIn this paper, fatigue life of a cracked railway wheel under thermo-mechanical loads is studied. For this purpose a FE model of a wheel, with two brake shoes and a portion of rail is created and suitable loads and boundary conditions are applied to the model. It is assumed that the wheel has contained an elliptical crack in the definite depth of the
Lat. Am. j. solids struct.. Publicado em: 2015-06