Pre Manufacture
Mostrando 1-12 de 31 artigos, teses e dissertações.
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1. Restorative Possibilities Using Zirconia Ceramics for Single Crowns
Resumo Dois casos clínicos são apresentados para explorar as diferenças técnicas e discutir as vantagens e desvantagens de se utilizar zircônia com cerâmica estratificada ou monolítica para confeccionar coroas unitárias. O primeiro caso descreve os passos clínicos na confecção de uma coroa monolítica no segundo pré-molar esquerdo utilizando uma
Braz. Dent. J.. Publicado em: 07/10/2019
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2. 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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3. Corrosion resistance of rolled and rerolled super martensitic steel in media containing chlorides and hydrogen sulfide
ABSTRACT In the oil and gas industry, super matensitic steels have been used primarily in the manufacture of seamless steel pipe for use in drilling oil and gas. The objective of this work is to evaluate the corrosion resistance of rolled and rerolled super martensitic steels in electrolytes of aqueous solution of NaCl 35 g/L, and aqueous solution of NaCl 12
Matéria (Rio J.). Publicado em: 02/10/2017
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4. Analisys of hot deformation behavior of super duplex stainless steel UNS S32760 through processing maps
Abstract The need for materials with higher strength and corrosion resistance in corrosive environments, such as in the oil extraction in saline media, has led to the use of super duplex stainless steels in projects such as the Pre-sal. The manufacture of these materials involves the step of thermomechanical processing, whose performance depends on the worka
Rem: Rev. Esc. Minas. Publicado em: 2016-06
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5. 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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6. 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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7. Síntese de poliuretanos modificados por óleo de mamona empregados em materiais energéticos
The aim of this work was to synthesize a polyurethane polymer matrix using castor oil as a polymer chain modifier, whose characteristics can be adjusted for use as a binder in the manufacture of energetic materials such as propellant and pyrotechnics for aerospace use. We attempted the partial substitution of hydroxyl-terminated polybutadiene (HTPB), a pre-p
Quím. Nova. Publicado em: 2013
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8. Produção de recobrimentos metálicos a partir de ligas de ferro amorfizáveis / Production of metallic coatings based on amorphous iron alloys
The aim of this work was to study the production of metal coatings from amorphous alloy Fe-25Cr-7Ni-4,5B (wt.%), with special focus on mechanical and microstructure properties. Initially, preliminary studies were made through the production of ribbons and bulks of metallic alloys Fe-25Cr-7Ni-XB (X = 3.5, 4.5, 5.5 wt.%) for the evaluation of amorphous phase f
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 23/10/2011
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9. Análise qualitativa e quantitativa de compostos de borracha destinados à fabricação de revestimentos de embreagem / Qualitative and quantitative analysis of rubber compounds destined for clutch facings manufacture
In this work it was developed a methodology for qualifying and quantifying rubber compounds destined for facings manufacture. These compounds are formed by a large number of components which use, beyond the elastomeric base, a resin that is used as a process agent, vulcanization agents and different fillers, each one with a specific function. The elastomeric
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 27/05/2011
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10. On common agency with informed principals
This thesis consists of three chapters that have as unifying subject the frame-work of common agency with informed principals. The first two chapters analyze the economic effects of privately informed lobbying applied to tariff protection (Chapter 1) and to customs unions agreements (Chapter 2). The third chapter investigates the choice of retailing struture
Publicado em: 01/12/2009
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11. Mechanical, thermal and morphological properties of glutaraldehyde crosslinked bovine pericardium followed by glutamic acid treatment
Major problems with valve bioprostheses are associated with progressive structural deterioration and calcification, directly associated with the use of glutaraldehyde (GA). This work describes the effects of GA processing and borate/glutamic acid buffer treatment on the mechanical, thermal and morphological properties of 0.5% GA crosslinked bovine pericardiu
Materials Research. Publicado em: 2009-03
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12. Fabricação de malha de trama utilizada como pré-formas na indústria de compósitos e avaliação das propriedades mecânicas
In the manufacture of composite, textile materials are being used as reinforcement. Generally, the combination of the matrix with the textile material in the form of fibres or yarns is used depending on their distribution in the web. In the present work, in place of fibres or yarns, a knitted structure in the form of the final product which is defined as pre
Publicado em: 2009