Fracture Parameters
Mostrando 1-12 de 110 artigos, teses e dissertações.
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1. Diabetes and bone
Abstract Globally, one in 11 adults has diabetes mellitus of which 90% have type 2 diabetes. The numbers for osteoporosis are no less staggering: 1 in 3 women has a fracture after menopause, and the same is true for 1 in 5 men after the age of 50 years. Aging is associated with several physiological changes that cause insulin resistance and impaired insulin
Archives of Endocrinology and Metabolism. Publicado em: 2022
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2. Determining the Borderline Anatomical Parameters for Better Functional Outcome of Colles Fracture: A Prospective Study
Resumo Objetivo O tratamento da fratura de Colles pode deformar o pulso. Alguns estudos afirmam que essa deformidade raramente dificulta as atividades diárias, enquanto outros relatam o contrário; assim, a redução anatômica é desejável. Nosso objetivo foi analisar os resultados anatômicos e funcionais da fratura de Colles para descobrir os valores d
Revista Brasileira de Ortopedia. Publicado em: 2022
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3. Influence of sintering parameters on the microstructure and mechanical properties of nanosized 3Y-TZP ceramics
Abstract The fracture toughness of 3Y-TZP ceramics obtained from a nanocrystalline powder with an optimized microstructure and highly transformable tetragonal grains was investigated. Samples of ZrO2-3 mol% Y2O3 were sintered at temperatures between 1250 and 1400 °C, with isothermal holding times of up to 16 h. Samples sintered at 1250 °C exhibited relativ
Cerâmica. Publicado em: 2021-03
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4. Anatomy of the Scapula Applied to the Posterior Surgical Approach: Safety Parameters during Access to the Lateral Angle
Resumo Objetivo O presente trabalho teve como objetivo identificar parâmetros de segurança para a realização da via de acesso cirúrgico posterior da escápula por meio de um estudo transversal em cadáveres. Métodos Foram dissecados 13 ombros de cadáveres sem história de cirurgia ou disfunção musculoesquelética prévia e em bom estado de conser
Rev. bras. ortop.. Publicado em: 14/11/2019
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5. Biomechanical Test after Hip Cannulated Screw Removal (in vitro Analysis)
Resumo Objetivo Avaliar, pormeio de ensaio biomecânico, a resistência e a energia necessária para ocorrência de fratura do fêmur proximal em osso sintético após retirada de parafusos canulados em forma de triângulo invertido e comparar os resultados obtidos com técnica de reforço utilizando polimetilmetacrilato (PMMA). Métodos Foramutilizados
Rev. bras. ortop.. Publicado em: 07/10/2019
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6. Intermittent vibrations accelerate fracture healing in sheep
Abstract Purpose: To investigate the effect of intermittent vibration at different intervals on bone fracture healing and optimize the vibration interval. Methods: Ninety sheep were randomized to receive no treatment (the control group), incision only (the sham control group), internal fixation with or without metatarsal fracture (the internal fixation gro
Acta Cir. Bras.. Publicado em: 12/09/2019
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7. Comparative Study of Function and Quality of Life in Patients with Fracture of the Tibial Plateau Operated with Locked or Conventional Plates
Resumo Objetivos Comparar resultados clínicos, funcionais e de qualidade de vida de pacientes com fratura do planalto tibial operados com placa bloqueada ou convencional e comparar os custos hospitalares dos implantes. Métodos Estudo comparativo de coortes transversal, retrospectivo, em uma série consecutiva de pacientes com fratura do planalto tibial
Rev. bras. ortop.. Publicado em: 20/05/2019
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8. Evaluation of Fracture Toughness of Ultraviolet-Irradiated Polycarbonate Using the Essential Work of Fracture Method
The essential work of fracture (EWF) method provides useful parameters to characterize the fracture toughness of polymers exposed to degrading environments under conditions associated with plane-stress state of failure. Exposure of polymeric engineering materials to ultraviolet (UV) radiation may produce macromolecular changes that impair their fracture toug
Mat. Res.. Publicado em: 26/07/2018
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9. Optimización del proceso RSW para acero DP 1000
ABSTRACT In recent times new materials have been introduced in automobiles construction in order to reduce their weight and consequently fuel consumption and emissions level. Among them are Dual Phase (DP) steels, constituted by a ferritic matrix with martensite islands. Resistance Spot Welding (RSW) is the most commonly used welding process in the automotiv
Matéria (Rio J.). Publicado em: 19/07/2018
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10. Caracterización de daño por “b-value” de eventos de emisión acústica en ensayos de rotura de roca andesita
ABSTRACT Acoustic emission is a phenomenon that produces elastic waves when materials are subjected to tension. These waves spread towards the material surface where they are received by sensors that convert them into electrical signals for further analysis. In this work, acoustic emission signals were analysed in order to evaluate the amount of accumulated
Matéria (Rio J.). Publicado em: 19/07/2018
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11. Size Effects on Fracture Parameters of High Alumina Refractories
The randomness of phase compositions and their distribution as well as the micro cracks and pores in refractories result in the dependence of mechanical properties on the sample size. In this work, the size effects on fracture parameters including bending strength, elastic modulus and fracture toughness of high alumina bricks were investigated by testing sam
Mat. Res.. Publicado em: 10/07/2018
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12. Experimental and numerical investigation on the dumbbell-shaped specimen of concrete-like materials under tension
Abstract Mortar is an important component of concrete. It is of great significance to obtain its tensile properties accurately. The structure heterogeneity of mortar specimens is high. Specimens are prone to fracture nearby interfaces between specimens and loading plates because of the inhomogenous stress distribution during the testing, which leads that ef
Lat. Am. j. solids struct.. Publicado em: 02/07/2018