Pre Heating
Mostrando 1-12 de 71 artigos, teses e dissertações.
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1. Influence of Pre-Heating Regular Resin Composites and Flowable Composites on Luting Ceramic Veneers with Different Thicknesses
Resumo O objetivo neste estudo foi avaliar a influência do pré-aquecimento, conteúdo de carga e espessura da cerâmica na espessura da película, resistência de união ao microcisalhamento, grau de conversão e alteração de cor na cimentação de cerâmicas. Dois compósitos experimentais foram preparados (Bis-GMA / UDMA / BisEMA / TEGDMA), com diferen
Braz. Dent. J.. Publicado em: 07/10/2019
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2. Avaliação energética de um edifício de serviços: Escola Superior Aveiro Norte, Portugal
Resumo O objetivo deste trabalho é realizar uma avaliação energética da Escola Superior Aveiro Norte (ESAN), situada no município de Oliveira de Azeméis (Portugal). Esse edifício possui tecnologias de climatização pouco convencionais em Portugal, como bombas de calor geotérmicas associadas a piso radiante e ventilação, com pré-aquecimento de ar,
Ambient. constr.. Publicado em: 03/10/2019
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3. Estudio del comportamiento en enfriamiento continuo del acero martensítico ferrítico de activación reducida F82H
ABSTRACT 9% Cr martensitic-ferritic steels are currently the privileged candidates to manufacture structural components of the so-called Generation IV nuclear fission reactors, because they exhibit very good thermophysical and mechanical properties under neutron irradiation. Along with them, the so-called Reduced Activation Ferritic-Martensitic steels (RAFM�
Matéria (Rio J.). Publicado em: 19/07/2018
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4. Multi-Objective Curing Cycle Optimization for Glass Fabric/Epoxy Composites Using Poisson Regression and Genetic Algorithm
In this study, a multi-parameter design of experiments, using Taguchi method, has been conducted in order to investigate the optimum curing conditions for glass fabric/epoxy laminated composites, followed by a statistical analysis and genetic algorithm optimization. Heating rate a, temperature T1 and duration h1 were treated as independent variables in a L25
Mat. Res.. Publicado em: 01/02/2018
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5. Influence of casting heterogeneities on microstructure and mechanical properties of austempered ductile iron (ADI)
ABSTRACT An investigation was carried out to examine the influence of as-cast heterogeneities on the resulting microstructure and mechanical properties of an austempered ductile cast iron (ADI). A commercial hypereutectic ductile iron alloy with 3.59% C, 2.68% Si, 0.24% Mn and 0.46% Cu (in wt. %) was produced in a coreless induction furnace. The specimens we
Matéria (Rio J.). Publicado em: 10/08/2017
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6. Differential Scanning Calorimetry study on curing kinetics of diglycidyl ether of bisphenol A with amine curing agents for self-healing systems
ABSTRACT Epoxy resin is one of the most important polymeric matrixes for diverse uses, such as aeronautical, mobile, electronics and others. Providing a material capable of self-healing microcracks will allow it to have a more reliable and longer use. In order to study this new property of self-healing to an epoxy resin, a Differential Scanning Calorimetry (
Matéria (Rio J.). Publicado em: 20/07/2017
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7. Pre-heating mitigates composite degradation
ABSTRACT Dental composites cured at high temperatures show improved properties and higher degrees of conversion; however, there is no information available about the effect of pre-heating on material degradation. Objectives This study evaluated the effect of pre-heating on the degradation of composites, based on the analysis of radiopacity and silver penet
J. Appl. Oral Sci.. Publicado em: 2015-12
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8. Manufacture of custom-made cranial implants from DICOM® images using 3D printing, CAD/CAM technology and incremental sheet forming
INTRODUCTION: This work aims to pre-operatively manufacture custom-made low-cost implants and physical models (‘biomodels’) of fractured skulls. The pre-DOI: operative manufacturing of biomodels and implants allows physicians to study and plan surgery with a greater possibility of achieving the expected result. Customization contributes to both the esthe
Rev. Bras. Eng. Bioméd.. Publicado em: 2014-09
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9. Characterization of pre-gelatinized rice and bean flour
The objective of this study was to develop a pre-gelatinized flour using a mixture of broken rice and split beans by thermoplastic extrusion, and to evaluate the physicochemical, nutritional, and technological quality of the final product. The extrusion parameters were maintained using three heating zones with temperatures of 30 ºC, 40 ºC, and 70 ºC; scre
Food Sci. Technol. Publicado em: 24/05/2013
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10. Passive body heating improves sleep patterns in female patients with fibromyalgia
OBJECTIVE: To assess the effect of passive body heating on the sleep patterns of patients with fibromyalgia. METHODS: Six menopausal women diagnosed with fibromyalgia according to the criteria determined by the American College of Rheumatology were included. All women underwent passive immersion in a warm bath at a temperature of 36 ±1 °C for 15 sessions o
Clinics. Publicado em: 2013
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11. A definição do sortimento-profundidade nos supermercados brasileiros: influência nas vendas e critérios utilizados / The definition of in-depth assortment supermarkets Brazilians: influence on sales and criteria used
Even before the heating of the Brazilian economy in recent years, the past decade was marked by a growing number of products launched in the mass consumer market, the vast majority not having survived a year of existence. At the same time the Brazilian consumers are presented with greater purchasing power, increased consumer expectations and increased access
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 30/11/2012
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12. Implicações ecológicas da dormência de sementes em Butia odorata (ARECACEAE)
Butia odorata (butiazeiro) é uma palmeira que ocorre em regiões subtropicais da América do Sul, onde constitui formações savânicas em áreas associadas com o manejo pecuário. Após a dispersão, suas sementes apresentam dormência, que pode ser superada por tratamentos de calor úmido. Esta tese visou avaliar como esta dormência responde a variáveis
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 2012