Mechanical Engineering
Mostrando 1-12 de 249 artigos, teses e dissertações.
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1. Characterization and potential applications of new boron-phosphate glass in the CaO-P2O5-K2O-B2O3 system
Abstract Boron phosphate glasses are known for their unique properties and have been investigated as biodegradable materials for biomedical applications. In this context, the present research studied the characterization of physical, mechanical, and bioactive properties of new boron-phosphate glass in the CaO-P2O5-K2O-B2O3 system produced by the melt-quenchi
Cerâmica. Publicado em: 2022
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2. Upconversion 3D Printed Composite with Multifunctional Applications for Tissue Engineering and Photodynamic Therapy
Upconversion nanoparticles (UCNPs) are suitable materials for bioapplications due to their ability to emit visible light under near infrared (NIR) excitation, in the biological transparency range. Polycaprolactone(PCL)-based scaffolds are widely used in tissue engineering in combination with inorganic compounds to improve bioactivity and osteoconductive prop
J. Braz. Chem. Soc.. Publicado em: 2020-04
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3. Effect of Suture on Mechanical Properties of Stitched Thermal Protection Sandwich
This paper investigates the tensile properties and bending performances of stitched thermal protection structure in engineering, and the effect of stitching density on mechanical properties, via a model of ceramic-aerogel stitched sandwich. With the help of ANSYS, titanium alloy bottom plate was added to the bottom surface of the thermal protection structure
Mat. Res.. Publicado em: 13/01/2020
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4. Revised formula for predicting the long-term deflection multiplier of normal and high strength concrete
Abstract High strength concrete (HSC) has found many applications in civil engineering structures such as in high-rise buildings, and bridges. The mechanical properties of HSC are sometimes different than of normal strength concrete (NSC). In particular, HSC possess lower creep strains compared to NSC. As a result, members constructed using HSC have been fou
Rev. IBRACON Estrut. Mater.. Publicado em: 13/12/2019
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5. Characterization and Comparative Analysis of Corrosion Resistance of 4 High Manganese Steels Models in Aqueous Solution of NaCl
The liquefied natural gas volumes that currently need to be stored and/or transported require engineering to consistently develop materials that combine high mechanical strength and low manufacturing costs. The present work brings the study of four models of high manganese steels (non-commercials), to demonstrate the feasibility of being used in the petroche
Mat. Res.. Publicado em: 09/12/2019
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6. Aplicação da Metodologia para Qualificação de Procedimentos de Soldagem de Tubulações Industriais Conforme Parâmetros dos Códigos ASME B31.3 e ASME SECTION IX*
Resumo Este trabalho foi desenvolvido visando auxiliar os profissionais de soldagem quanto as incertezas relacionadas às atividades de fabricação, montagem e manutenção de tubulações em plantas industriais no qual se refere à maneira adequada para a condução de atividades de qualificação de procedimentos de soldagem. Discorre sobre a metodologia
Soldag. insp.. Publicado em: 21/10/2019
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7. Characterization of Decellularized Human Pericardium for Tissue Engineering and Regenerative Medicine Applications
Resumo Fundameto: O enxerto de pericárdio pode ser usado em muitos procedimentos de correção cirúrgica. Uma das estratégias da engenharia tecidual é o processo de descelularização. No entanto, embora esse processo diminua a resposta imunogênica, a descelularização pode modificar tanto o comportamento como a composição da matriz extracelular nat
Arq. Bras. Cardiol.. Publicado em: 27/06/2019
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8. Study on impact of fiber hybridization in material properties of engineered cementitious composites
ABSTRATO Compósito Cimentício Projetado (ECC) é um tipo de compósitos cimentícios reforçados com fibras de alto desempenho melhorados com bom comportamento de tração, compressão e flexão. O ECC é conhecido por seu comportamento de endurecimento de tensão sob tensão e tem sido cada vez mais aplicado na prática de engenharia. O processo de adicio
Matéria (Rio J.). Publicado em: 10/06/2019
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9. Analysis of Failure Criteria in Laminas Reinforced with Unidirectional Curaua Fiber Fabric
Natural fibers are increasingly used as composite reinforcement in different fields of engineering. Caraua fiber stands out for its good mechanical properties and adherence to resin; however, little is known about its behavior in the manufacture of a composite or whether classic failure theory applies in this case. The present study assesses the mechanical p
Mat. Res.. Publicado em: 25/04/2019
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10. Modeling and Experimental Validation of Two Adjacent Portal Frame Structures Subjected to Vibro-impact
Abstract In many engineering applications, there are systems that exhibit a series of collisions in a certain amount of time, for example the impact of floating ice in ships and the rubbing between stationary and rotary parts in turbomachinery. In many of these situations, it is of vital importance to know how the impacts affect the overall system behavior f
Lat. Am. j. solids struct.. Publicado em: 08/04/2019
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11. The Future Digital Work Force: Robotic Process Automation (RPA)
Abstract The Robotic Process Automation (RPA) is a new wave of the future technologies. Robotic Process Automation is one of the most advanced technologies in the area of computers science, electronic and communications, mechanical engineering and information technology. It is a combination of both hardware and software, networking and automation for doing t
JISTEM J.Inf.Syst. Technol. Manag.. Publicado em: 10/01/2019
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12. Effect of sawdust as porosity agent on final properties of geopolymers
Abstract The geopolymers synthesis are based on geopolymerization, a sequence of reactions processed in an alkaline medium through oligomers providing a three-dimensional molecular structure. In this work, the polycondensation of metakaolin was performed with alkaline activators (NaOH and sodium silicate), wood sawdust and other additives. Two different comp
Cerâmica. Publicado em: 2019-01