Porous Way
Mostrando 1-12 de 48 artigos, teses e dissertações.
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1. Simple and fast process using hydrochloric acid for producing synthetic zinc-rich stevensite
Abstract In the last decades, clays have been used in sectors such as health and cosmetics. This requires products that are increasingly pure and present homogeneous properties, hardly found in natural clays. The use of synthetic clays can be a solution. For this, it is necessary to explore techniques for their production. The main focus of this study was to
Cerâmica. Publicado em: 2022
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2. PEEK Physical Surface Modification: Evaluation Of Particles Leaching Process
Polyetheretherketone (PEEK) has been prominent in orthopedic implants; however, it is inert, preventing interaction between the implant and adjacent bone tissues. One way to overcome this characteristic is physical modification its on surface by particle leaching promoting greater osseointegration. The objective of this research was to develop and characteri
Mat. Res.. Publicado em: 14/02/2019
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3. Synthesis of As-sintered 60NiTi Parts with a High Open Porosity Level
60NiTi, despite exhibiting attractive chemical and mechanical properties desirable for biomedical applications, has not yet been processed to a porous structure suitable for general bone replacement applications. In this research, elemental Ni and Ti powders were used to process and manufacture 60NiTi parts by employing conventional press-and-sinter method.
Mat. Res.. Publicado em: 10/07/2018
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4. Water jet tunneling: a theoretical advanced rate evaluation
Abstract Tunnel Boring Machines play an important role in the underground infrastructure execution of modern cities. They weigh thousands of tons and measure hundreds of meters besides utilizing high powered energy in the excavation process. Although being well established, they are based on a last century design approach and they are not compatible anymore
REM, Int. Eng. J.. Publicado em: 2018-04
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5. Interference film grown on stainless steel by pulsed current process using chromium free vanadate solution
ABSTRACT Deposition of interference film is an alternative way for the formation of colored protective layers on the surface of stainless steels for decorative applications. The process involves growth of a chromium oxide film by electrochemical methods using in general sulphochromic solutions. However, it is well known that chromic acid contains Cr(VI), whi
Matéria (Rio J.). Publicado em: 05/03/2018
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6. Experience on a Low Cost Way to Obtainal-Ti Ceramic Foams
An experience on a simple process for producing alumina-rutile-mullite ceramic foams by using aqueous particulate slurries is proposed. The sintering process is achieved in one unique thermal process at 1200 ºC in air. The description of the process, physical properties and morphological studies are reported. Microstructure is studied by using confocal opti
Mat. Res.. Publicado em: 2015-08
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7. Bioactivity, physical and chemical properties of MTA mixed with propylene glycol
AbstractObjective To investigate the physical (setting time, hardness, flowability, microstructure) and chemical (pH change, calcium release, crystallinity) properties and the biological outcomes (cell survival and differentiation) of mineral trioxide aggregate (MTA) mixed using different proportions of propylene glycol (PG) and water.Material and Methods Wh
J. Appl. Oral Sci.. Publicado em: 2015-08
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8. Soil physical quality of Mollisols quantified by a global index
Indicators synthesizing the state of the structural quality and the function of the porous system are useful for assessing soil production capacity as well as the way it may serve natural ecosystems. This research aimed (i) to determine indicators of the state and function of the porous system, (ii) to use them to derive a global index to characterize the so
Sci. agric. (Piracicaba, Braz.). Publicado em: 2015-02
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9. Nanoporous materials: pillared clays and regular silicas as an example of synthesis and their porosity characterization by X-ray diffraction
Because of their practical applications, porous materials attract the attention of undergraduate students in a way that can be used to teach techniques and concepts in various chemistry disciplines. Porous materials are studied in various chemistry disciplines, including inorganic, organic, and physical chemistry. In this work, the syntheses of a microporous
Quím. Nova. Publicado em: 2014
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10. Construção de células solares sensibilizadas por corante a partir de nanoestruturas de ZnO obtidas por método hidrotermal / Construction of dye-sensitized solar cells from Nanostructures ZnO obtained by Method Hidroterma
The Photovoltaic (PV) sector has been facing an accelerated development rate within the last decade, which is comparable to the other renewable energy sources, according to the data released by the International Energy Agency (IEA). Therefore, a myriad of R&D activities and technological innovations are under way in order to cut down the manufacturing cost o
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 01/08/2011
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11. Desenvolvimento de bolo de cenoura sem glúten com sacarose e diet e estudo do impacto do edulcorante no perfil sensorial e na aceitação do consumidor / Development of gluten-free carrot cake with sucrose and diet and study on the impact of sweeteners and sensory profile consumer
t: Changes in food process and the higher demand for foods that have health benefits, besides high sensory and nutritional quality, make new-products development necessary. This study aimed to develop different formulas of glutenfree carrot cake with maize oil and traditional carrot cakes with wheat flour and maize oil or palm oil. Acceptance by consumers, t
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 07/07/2011
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12. Simulação de Fluxo no Meio Poroso Utilizando o Fluent
A complexidade do fenômeno do fluxo de um fluido em meios porosos causa uma dificuldade em sua descrição explícita. Diferente nos casos em que o fluxo se dar através de uma tubulação, onde é possível medir o comprimento e diâmetro da tubulação, bem como determinar sua capacidade de escoamento em função da pressão, a qual é uma tarefa complica
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 30/06/2010