Extrusion Force
Mostrando 1-12 de 47 artigos, teses e dissertações.
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1. Essential oil of the leaves of Eugenia sulcata preserve myocardial contractility and does not present immunotoxicity
The essential oil of the leaves of Eugenia sulcata, in the Myrtaceae family, has a demonstrated antihypertensive effect, but its effects on heart muscle and its toxicity have not yet been elucidated. Little chemical or biological data are available for E. sulcata, whether emphasizing the beneficial effects or the pharmacological security of this species. Thi
Braz. J. Pharm. Sci.. Publicado em: 30/09/2019
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2. Estudio de la formabilidad en caliente de aleaciones de titanio a través del ensayo de torsión y su aplicación a la optimización de procesos de forja y extrusión
ABSTRACT In the development of hot metal forming, the metallic products must comply with the requirements imposed by current standards. In some cases, the required microstructure can only be obtained through thermomechanical processing. With titanium and its alloys, small ranges of good workability are an additional difficulty. In this work the hot-workabili
Matéria (Rio J.). Publicado em: 19/07/2018
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3. Effect of PVA and PDE on selected structural characteristics of extrusion-cooked starch foams
Abstract The aim of this work was to determine selected physical properties of biodegradable thermoplastic starch (TPS) filling foams manufactured by extrusion-cooking technique from different combinations of potato starch and two additives: poly(vinyl alcohol) PVA and Plastronfoam PDE. Foams were processed with seven starch/additives combinations at two di
Polímeros. Publicado em: 15/03/2018
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4. Starch/polyester films: simultaneous optimisation of the properties for the production of biodegradable plastic bags
Blends of starch/polyester have been of great interest in the development of biodegradable packaging. A method based on multiple responses optimisation (Desirability) was used to evaluate the properties of tensile strength, perforation force, elongation and seal strength of cassava starch/poly(butylene adipate-co-terephthalate) (PBAT) blown films produced vi
Polímeros. Publicado em: 20/02/2013
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5. Microextrusão de peças aplicadas a materiais ferrosos e não ferrosos
This thesis presents the study about microforming, in this case microextrusion of the four different materials, an SAE 1020 steel, an AISI 304 stainless steel, an AA6531 aluminum and a C34000 brass. To evaluate the size effect about microextrusion process, two sizes of specimens were used, with a ¿ 4 mm and another with ¿ 1 mm. For each size of specimen, t
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 2012
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6. Characterization of the dent and flint corn fractions with different particle sizes and evaluation on the quality expanded extrudes / Caracterização das frações com diferentes granulometrias de milho dentado e duro e avaliação na qualidade de extrusados expandidos
The endosperm of a corn grain is made up of a vitreous region and a farinaceous region, which present different chemical and physical composition. Corn fractions obtained by dry milling, presenting different particle sizes distributions and variations in chemical composition, are used in the production of expanded extrudates (snacks). The objective of the pr
Publicado em: 2009
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7. Chemical and physical characterization of cassava flour and soy protein biofilms. / Caracterização físico-química de filmes biodegradáveis de farinha de mandioca e proteína de soja.
Environmental concerns associated with plastics disposal have promoted research into alternatives to replace the common plastic. Following this tendency, this research used cassava flour mixed with different rates of soybean protein and glycerol to produce biodegradable films by thermoplastic extrusion. Variables analyzed were: soybean protein, moisture and
Publicado em: 2009
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8. Cephalometric effects produced by Ten Hour Force Theory application and cervical headgear, both followed by the fixed appliance therapy for Class II treatment / Estudo cefalométrico comparativo entre o recurso da Teoria de Força das Dez Horas e o uso do aparelho extrabucal
This study aimed to compare the cephalometric effects promoted by two different protocols to correct the Class II malocclusion: Extraoral Appliance associated to fixed appliances and the Ten-Hour Force Theory, that consists in the use of fixed appliances, 8 hours a day using extraoral appliance and 16 hours a day using Class II elastics, 8 hours in the first
Publicado em: 2008
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9. Stress distribution analysis caused by different intrusion arches on lower incisors in photoelastic model / Análise da distribuição de tensões, em modelo fotoelástico, decorrente de diferentes arcos de intrusão de incisivos inferiores
In the present study, the distribution of stresses caused by intrusion arches on lower incisors, in the anterior region of photoelastic model, was analyzed. The stresses were compared among the different arches. Additionally, stresses were also compared among the root thirds, as well as among the incisors for each arch type. The photoelastic model was constr
Publicado em: 2008
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10. Influence of three adhesives systems on the extrusion strength of glass fiber posts fixed by resin cements / Influência de três sistemas adesivos na resistência à extrusão de pinos de fibras de vidro fixados com um cimento resinoso
In order to increase strength to fracture of endodontically treated teeth, a number of restorative techniques were developed. Nowadays, carbon and glass fiber post systems are the most used due to their advantages of modulus of lasticity similar to dentin, which lead to lower stress and consequently lower number of root fractures, besides no laboratorial wor
Publicado em: 2006
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11. Anionic collagen : rhamsan composites as injectable biomateriais : characterization and interaction mechanism / Compósitos colágeno aniônico : ramsana como biomateriais injetáveis : caracterização e mecanismo de interação
This work describes the preparation, characterization and mechanisms of interaction anionic collagen:rhamsam composites, with the purpose of developing injectable gels for plastic corrections with similar concentrations to the commercially founded without the use of glutaraldehyde. The materials were characterized by electrophoresis, infrared spectroscopy, t
Publicado em: 2003
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12. Efeito da temperatura de extrusão, umidade da materia-prima, teor de amido e sacarose nas caracteristicas tecnologicas e nutricionais de produtos extrusados de germe de trigo
Wheat germ component is rich in vitamins, minerals, fat content and good quality proteins. The amount of wheat germ used as food in human consumption is very low compared to the amount used as feed for animal. This fact could be explained by some problems in raw wheat germ. The extrusion cooking process - High Temperature Short Time was applied to wheat germ
Publicado em: 1992