Direct Melting
Mostrando 1-12 de 64 artigos, teses e dissertações.
-
1. A review on the ceramic additive manufacturing technologies and availability of equipment and materials
Abstract Ceramic additive manufacturing allows the fabrication of small series of complex parts without the high costs of molds usually associated with traditional ceramic processing. Although research into ceramic 3D printing by all technologies started back in the 90s, its industrial application is still quite restricted when compared to polymers and metal
Cerâmica. Publicado em: 2022
-
2. Physicomechanical and thermal analysis of bulk-fill and conventional composites
Abstract The aim of this study was to evaluate the degree of conversion (DC) and the thermal stability of bulk-fill and conventional composite resins. Eleven composite resin samples were prepared to evaluate the DC, Vickers microhardness (VMH), mass and residue/particle loss, glass transition temperature (Tg), enthalpy, and linear coefficient of thermal expa
Braz. oral res.. Publicado em: 18/03/2019
-
3. Effects of Composition and Thermal Treatment of Cu-Al-Zn Alloys with Low Content of Al on their Shape-memory Properties
Two Cu-Zn-Al alloys with variable content of Zn (25 and 30 wt%) and constant Al content (4 wt%) prepared by induction melting of pure metals and hot rolled into strips of 0.5 mm thickness were thermally processed by using three different heat treatments: direct quenching, step-quenching and up-quenching with boiling water and room temperature water as the qu
Mat. Res.. Publicado em: 07/08/2017
-
4. Effect of Mill Type on Morphology of AA6013 Aluminium Powder
ABSTRACT In conventional recycling method, metal chips are cast after pressing and melting in electric arc furnace. Material loss occurs during the recycling from liquid metal due to the several reasons. Direct recycling method which produces the aluminium powder from aluminium chips using mechanical mill can be an alternative to conventional recycling metho
Matéria (Rio J.). Publicado em: 2016-09
-
5. Estudo da copolimerização em mini emulsão de metacrilato de metila/metacrilato de etila / Study of methyl methacrylate/ethyl methacrylate in mini emulsion copolimerization
Reduction of volatile organic compounds (VOC) usage is a constant environmental demand. Polymeric aqueous emulsion of low surfactant contends produced from direct miniemulsion synthesis are used with advantages to replace organic solvents media as well as aqueous emulsions of high surfactant concentration. Water as continuous phase and organic monomers with
Publicado em: 2008
-
6. Seleção de pessegueiro adaptado ao clima subtropical / Peach tree selection adapted the subtropics conditions
The peach is one of fruit species subjected to more research all over the world having a large number of varieties. One of the most important objectives in peach breeding is the low chilling requirement, once it has direct relation with adaptation of the species in areas in mild winters area, characteristic of subtropical regions. Characteristics such as fru
Publicado em: 2007
-
7. A cost-effective melting temperature assay for the detection of single-nucleotide polymorphism in the MBL2 gene of HIV-1-infected children
We report a fast (less than 3 h) and cost-effective melting temperature assay method for the detection of single-nucleotide polymorphisms in the MBL2 gene. The protocol, which is based on the Corbett Rotor Gene real time PCR platform and SYBR Green I chemistry, yielded, in the cohorts studied, sensitive (100%) and specific (100%) PCR amplification without th
Brazilian Journal of Medical and Biological Research. Publicado em: 2006-06
-
8. Estudo de dois genes da imunidade inata (MBL â 2 e o receptor CCR5) na transmissÃo materno infantil do HIV-1
The Acquired Immunodeficiency Syndrome (AIDS) is a disease caused by Human immunodeficiency Virus (HIV) and is characterized by cell destruction of immunologic system, as macrophages and T CD4. According statistics by Joint United Nations Program on HIV/AIDS (UNAIDS) approximately 42 millions of people are living with HIV worldwide and only in Brazil there a
Publicado em: 2006
-
9. CONTROLADORAS ESTRANGEIRAS E CONHECIMENTO ORGANIZACIONAL NAS CONTROLADAS BRASILEIRAS: ESTUDO DE CASO NAS ÁREAS DE VAREJO DE DUAS ORGANIZAÇÕES BANCÁRIAS / FOREIGN ACQUIRERS AND ORGANIZATIONAL KNOWLEDGE IN BRAZILIAN ACQUIRED COMPANIES: A CASE-STUDY IN THE RETAIL AREAS OF TWO BANKS
The aim of this dissertation is the identification, description, and explanation of the process through which cultural, psychological, social, political, and administrative factors that are present in a foreign acquirer interact with the Brazilian acquired company, affecting its organizational knowledge. The latest ten years have witnessed the growing debate
Publicado em: 2005
-
10. Métodos de Preparação e Propriedades de Vidros de Fluoretos
The havy metal fluoride glasses have usually many cationic species and many intermediary reactions happen during the smelt. However the melteds cooling is very fast. Thus the proprieties of the glass depend strongly of the chemical way and of the termic history. In this work we study the effect of chemistry way (method of preparation) about the termics and o
Publicado em: 2004
-
11. Influencia do uso de retentados de baixo fator de concentração no rendimento e na qualidade da mussarela de reduzido teor de gordura feita por acidificação direta. / Use influence of low concentration factor ultrafiltration retentates on the yield and the quality of mozzarella of reduced text of fat made for direct acidification.
Use of low concentration factor ultrafiltration retentates on composition, yield, proteolysis, rheological and functional properties, microstructure and sensory acceptability of reduced fat Mozzarella cheese made by direct acidification was evaluated. Two concentration factors (1.4 and 1.8) were compared with a control (semi-skimmed milk) and three trials we
Publicado em: 2004
-
12. ESTUDO DA FUSÃO E SOLIDIFICAÇÃO DA FASE BI-2212 E SEUS MECANISMOS DE SUPERCONDUÇÃO / STUDY OF BI-2212 PHASE MELTING AND SOLIDIFICATION AND ITS SUPERCONDUCTING MECHANISMS
High temperature superconductivity was discovered in 1986. Since then more than 150 new superconductors (cuprates, bismuthates, borides and fullerite) with critical temperature higher then 23,3K (the highest critical temperature for low temperature superconductors) have been synthesized. Many of them rise interest from the scientific viewpoint and are suitab
Publicado em: 2003