Ceramic Block
Mostrando 13-24 de 31 artigos, teses e dissertações.
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13. Morse taper implants at different bone levels: a finite element analysis of stress distribution
AIM: To explore the biomechanical effects of the different implantation bone levels of Morse taper implants, employing a finite element analysis (FEA). METHODS: Dental implants (TitamaxCM) with 4x13 mm and 4x11 mm, and their respective abutments with 3.5 mm height, simulating a screwed premolar metal-ceramic crown, had their design performed using the softwa
Braz. J. Oral Sci.. Publicado em: 2012-12
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14. Comparação entre blocos cerâmicos e em concreto, quanto a custo e produtividade, quando utilizados em alvenaria estrutural / Comparison between ceramic blocks and concrete blocks relatively to cost and productivity, when used in structural masonry
A alvenaria estrutural é um dos mais antigos sistemas de construção. Com a revolução industrial e o avanço de novas técnicas construtivas foi perdendo espaço na construção civil para as soluções em concreto armado e em aço. No início do século XX, buscando novas alternativas de construção, alguns países mais desenvolvidos começaram a demon
Publicado em: 2011
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15. Performance of carbide and ceramic tools in the milling of compact graphite iron - CGI
Grey cast iron (GCI) is the most common material used in diesel engine blocks. However, to increase the pressures in the combustion chamber when this kind of alloy is used, it is necessary to increase the block wall thickness, what raises its weight and, consequently, does not fulfill the requirements. Thus, the compacted graphite iron (CGI) appears as an al
Journal of the Brazilian Society of Mechanical Sciences and Engineering. Publicado em: 2010-12
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16. Avaliação da resistência de união de um cimento resinoso a um filme vitrocerâmico depositado em superfície de Y-TZP / Evaluation of bond strength of a resin cement to ceramic film deposited on a surface Y-TZP
The use of Y-TZP for dental ceramics strengthening has expanded significantly its mechanical properties, allowing its use in various clinical situations such as intraradicular, crowns, fixed partial dentures and implants. With the development of these new ceramic systems the use of traditional methods for surface treatment have been observed to be ineffectiv
Publicado em: 2010
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17. Uso da técnica de planejamento experimental para otimização de massa cerâmica com a incorporação de resíduos de cinza de lenha, casca de arroz e de eta / Use of experimental planning technnique to ceramic mass optimization with incorporation of waste ash wood, rice husk ash and sludge from water treatment
Nos últimos anos, os mais diversos setores industriais vêm sendo citados como fontes de poluição e contaminação do meio ambiente, devido à grande quantidade de resíduos gerados, que são frequentemente lançados diretamente no meio ambiente com impactos negativos nos ecossistemas. Entre esses resíduos podem ser citados os resíduos minerais, as cinz
Publicado em: 2010
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18. Comparison of the time required for removal of intraradicular cast posts using two Brazilian ultrasound devices
The aim of this in vitro study was to compare the time required for removal of intraradicular cast posts cemented with zinc phosphate (ZF) or glass ionomer cement (GIC), using two Brazilian ultrasound devices (BUD). Seventy two human inferior premolars with single root canals were sectioned transversally at the cementoenamel junction. In each specimen, the r
Brazilian Oral Research. Publicado em: 2009-03
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19. ESTUDO DO COMPORTAMENTO MECÂNICO DE BLOCOS CERÂMICOS COM DIFERENTES LARGURAS / STUDY OF THE MECHANICAL BEHAVIOR CERAMIC BLOCKS OF DIFFERENT THICKNESS
The main goal of this project is comparing the performance of structural ceramic blocks with 11,5 (Block A) e 14 (Block B) centimeters thickness, through tests with blocks, prisms and small walls using two types of mortar, ii and iii, determined by the British Norm (BS-5628) developed in laboratory. The experimental program includes simple axial units compre
Publicado em: 2009
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20. Desenvolvimento de bloco de vedação com barita na composição de partida para blindagem de radiação X
This work main objective is to study the use of bricks in barium X-rays rooms in order to contribute to the optimization of shielding rooms diagnosis. The work was based on experimental measurements of X-ray attenuation (40 to 150 kV), using ceramic seal bearing the incorporation of barium sulfat (BaSO4). Different formulations were studied in three differen
Publicado em: 2009
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21. Recommendations for thermal comfort for architectural design and deployment of housing units in rural settlements : case rural settlement Sepé Tiaraju, Serra Azul, SP / Recomendações de conforto térmico para projeto arquitetônico e implantação de unidades habitacionais em assentamentos rurais : caso assentamento rural Sepé Tiaraju, Serra Azul-SP
The architectural design and implementation of housing units in rural settlements, that include the participation of involved families in decision-making processes, are conditioned by some criteria or variables, such as: the limitation of governmental resources for financing low income families, the existence of a program with very specific needs, besides th
Publicado em: 2009
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22. Influence of the type of framework system in the adaptation and microleakage of all-ceramic crowns / Influência do tipo de sistema de infra-estrutura na adaptação e microinfiltração de coroas totais cerâmicas
The objectives of this study were to quantify the microleakage and the loss of marginal adaptation before and after cementation of all-ceramic crowns, with four types of infrastructure systems, and to compare these parameters. After approval by the Committee on Ethics in Research of Dental School of University of São Paulo, 40 human third molars received al
Publicado em: 2008
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23. Avaliação in vitro da resistência adesiva e degradação da interface de união entre cimentos resinosos e uma cerâmica aluminizada tratada internamente com laser / In Vitro analsis of bond strength and degradation method between bond interface of aluminous ceramic and resin cements
The aim of this study was to evaluate the influence of different surface treatments on resistance to degradation between In-Ceram Alumina and two resin-based cements. Sixteen experimental groups were formed according to ceramic treatment: Sandblasting (S), Rocatec System (R), Nd:YAG Laser (Nd), Nd:YAG Laser plus Rocatec System (NR); luting cement: Panavia F
Publicado em: 2008
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24. ANÁLISE DA RESISTÊNCIA DE PRISMAS E PEQUENAS PAREDES DE ALVENARIA ESTRUTURAL CERÂMICA PARA DIFERENTES TIPOS DE ARGAMASSAS / ANALYSIS OF THE RESISTANCE OF PRISMS AND CERAMIC STRUCTURAL MASONRY SMALL WALLS FOR DIFFERENT TYPES OF MORTARS
Este trabalho tem como objetivo principal analisar a influência da geometria do bloco cerâmico no desempenho mecânico da alvenaria estrutural, sob compressão centrada, quando utilizadas argamassas com resistências variadas. Estudam-se dois tipos de geometrias de blocos cerâmicos: uma de paredes vazadas (BPV) e outra com paredes maciças (BPM), possuind
Publicado em: 2008