Characterizations of the arylated and nonarylated biocomposites w

Characterizations of the arylated and nonarylated biocomposites were done by Fourier transform infrared spectroscopy, thermogravimetric analysis, and dynamic mechanical thermal analysis. The results indicate that the arylated soy-protein-based

composites exhibited mechanical behavior like brittle-matrix composites, which differentiated them from nonarylated soy-protein-based Dorsomorphin composites, which showed mechanical behavior similar to polymermatrix composites. In the arylated composites, there was clear evidence of a stickslip mechanism, which perhaps dominated and, therefore, prevented easy deformation of the reinforced film. Scanning electron microscopy studies revealed cracks in the arylated soy protein composites when they were subjected to tensile tests. (C) 2011 Wiley Periodicals, Inc. J Appl Polym Sci, 2012″
“The techniques of grain

boundary engineering are rapidly gaining significance microstructural design. To understand individual grain boundary characteristics, the influence of grain boundaries on the elastic and plastic deformation behaviors of copper bicrystals with Sigma 3((1) over bar 11) twin and Sigma 3((1) over bar 12) grain boundaries were investigated by large scale molecular statics simulation. These grain boundaries were chosen as examples of coherent and incoherent grain boundaries. Nanoindentation tests perpendicular to the grain boundary plane were used to investigate local deformation properties. Our results showed that an incoherent boundary experiences a reduction in elastic resistance due to the increase in excess R788 supplier free volume and

structure-dependent local Selleck GNS-1480 indentation modulus, while a coherent boundary has little effect on the elastic deformation. The propagation of plastic deformation is strongly blocked by the dissociation into a displacement shift complete (DSC) lattice dislocation which explains the superficial absorptive ability of a coherent twin boundary. However, plastic deformation of the Sigma 3((1) over bar 12) indentation demonstrates easy slip transfer across the interface. (C) 2011 American Institute of Physics. [doi:10.1063/1.3651384]“
“This study evaluated the effects of low dose radiation on spermatogenic cells using the morphological characteristics of sperm in the caudal epididymis of ICR mice. In this study, six abnormal sperm shapes (amorphous heads, blunt hooks, excessive hooks, two heads and tails, folded tails and short tails) were observed at eight days after gamma-irradiation ((137)Cs, 0, 0.2, 0.5, 1, 2 or 4 Gy) with both a high-dose-rate (0.8 Gy/min) and a low-dose-rate (0.7 mGy/hr). Fewer abnormal fortes of sperm were observed in low-dose-rate irradiated mice than in mice that received a high-dose-rate irradiation (P = 0.002). The ratio of the dose rate effect among low-dose-rate irradiated mice to high-dose-rate irradiated mice was approximately 0.6.

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