Results 311 to 320 of about 436,032 (358)
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On mechanical mechanism of damage evolution in articular cartilage
Materials Science and Engineering: C, 2017Superficial lesions of cartilage are the direct indication of osteoarthritis. To investigate the mechanical mechanism of cartilage with micro-defect under external loading, a new plain strain numerical model with micro-defect was proposed and damage evolution progression in cartilage over time has been simulated, the parameter were studied including ...
Yu-Tao, Men +4 more
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Characterization of Damaged Skin by Impedance Spectroscopy: Mechanical Damage
Pharmaceutical Research, 2013Electrochemical impedance spectroscopy is a convenient method that has been used to characterize skin barrier function, which affects drug delivery into and through the skin. The objective of this study was to relate changes in skin barrier function arising from mechanical damage to changes in the impedance spectra. These observations are compared in a
Erick A, White +2 more
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Molecular mechanisms of muscle damage
1993Prior to the recognition that the protein dystrophin is missing in Duchenne dystrophy muscle and of abnormal size or reduced quantity in muscle from Becker dystrophy patients (Hoffman et al., 1987a), the assumption was made that recognition of the defective gene product(s) would lead to a rapid understanding of the manner in which this defect caused ...
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Refractory Performance and Mechanism of Damage
2019This chapter deals with performance of Refractories in the Cement industry. The factors which determine the performance of Refractory are addressed in details. It shows that although Refractory quality is very important, the refractory performances depend only to a small extent on Refractory quality. The best quality refractory will not perform well if
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Phototoxicity to the Retina: Mechanisms of Damage
International Journal of Toxicology, 2002Light damage to the retina occurs through three general mechanisms involving thermal, mechanical, or photochemical effects. The particular mechanism activated depends on the wavelength and exposure duration of the injuring light. The transitions between the various light damage mechanism may overlap to some extent.
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Material Damage and Continuum Damage Mechanics
2011Continuum damage mechanics is a mechanical theory for analyzing damage and fracture processes in materials from a continuum mechanics point of view. The present chapter starts with the notion of material damage and that of continuum damage mechanics. Section 1.1 is concerned with the definition of damage, its mechanical aspects observed in different ...
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Mechanisms of ischemic brain damage
Critical Care Medicine, 1988This article provides a brief review of recent developments regarding the pathophysiology of ischemic brain damage, and offers hypotheses explaining the pathogenesis of selective neuronal vulnerability and of tissue infarction, respectively. It is suggested that selective neuronal vulnerability, observed after brief periods of ischemia and after ...
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Mechanical Representation of Damage and Damage Variables
2011The procedure of the continuum damage mechanics is to represent first the damage state of a material in terms of properly defined damage variables, and then to describe the mechanical behavior of the damaged material and the further development of the damage by the use of these damage variables.
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Contact mechanics in tribological and contact damage-related problems: A review
Tribology International, 2022Peidong Li, Xi-Qiao Feng, Kun Zhou
exaly