نتایج جستجو برای: pleura elastic modulus
تعداد نتایج: 95243 فیلتر نتایج به سال:
DNA-cross-linked polyacrylamide hydrogels (DNA gels) are dynamic mechanical substrates. The addition of DNA oligomers can either increase or decrease the crosslinker density to modulate mechanical properties. These DNA-responsive gels show promise as substrates for cell culture and tissue-engineering applications, since the gels allow time-dependent mechanical modulation. Previously, we reporte...
Recently developed classes of electronics for biomedical applications exploit substrates that offer low elastic modulus and high stretchability, to allow intimate, mechanically biocompatible integration with soft biological tissues. A challenge is that such substrates do not generally offer protection of the electronics from high peak strains that can occur upon large-scale deformation, thereby...
Background This study investigated the effect of post bleaching treatments to the change of enamel elastic modulus and microhardness after dental bleaching in- vitro. Material and Methods Fifty bovine incisor slab were randomly assigned into five groups (n=10). The samples were bleached for three times; 20 minutes each time, by 40% hydrogen peroxide. Next it was applied fractional CO2 laser f...
Nanoindentation tests were carried out to measure the elastic modulus of rat whisker, which is used as a high-acuity sensor for exploring the world and discriminating object distance, size and surface texture. The measured load–depth curves show that the biomaterial of rat whisker exhibits obvious visco-elastic characteristic, such as load relaxation and displacement creeping. The measured inde...
Elastic modulus of bone was investigated by nanoindentation using common methods of sample preparation, data collection, and analysis, and compared to dynamic mechanical analysis (DMA: three-point bending) for the same samples. Nanoindentation (Berkovich, 5 m and 21 m radii spherical indenters) and DMA were performed on eight wet and dehydrated (100% ethanol), machined equine cortical bone beam...
We derive, from an empirical interaction potential, an analytic formula for the elastic bending modulus of single-layer MoS2 (SLMoS2). By using this approach, we do not need to define or estimate a thickness value for SLMoS2, which is important due to the substantial controversy in defining this value for two-dimensional or ultrathin nanostructures such as graphene and nanotubes. The obtained e...
Tumors of the pleura may be primary or secondary. Primary tumors are exceedingly rare while secondary tumors are not uncommon. The most important and only primary malignancy of the pleura is the mesothelioma. In the 19th century the term, “tubercle-like lymphadenoma,”6 was used to describe this tumor. Later the name, “endothelioma,”7 was proposed for this malignancy because it was ascribed to a...
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