A dense Al-SiCp nanocomposite coating with high volume fraction of nano SiCp reinforcement (60 vol.%) was fabricated through cold spraying deposition milled Al-60SiCp powder in the present paper. Microstructure evolution during ball milling process, microstructure characteristics and hardness sprayed were studied. Al particles underwent fracture deformation SiC evenly distributed soft base mate...

Salmonella typhimurium uses of a type III protein secretion system encoded at centisome 63 of its chromosome to deliver effector molecule into the host cell. These proteins stimulate host cell responses such as reorganization of the actin cytoskeleton and activation of transcription factors. One of these effector proteins is SptP, a tyrosine phosphatase that causes disruption of the host cell a...

The present paper aims to investigate the solidification behavior and the forgeability of Aluminum alloy (LM6)-SiCp composites at different section of three-stepped composite castings. The temperature of the cast composites during solidification has measured by putting K-type thermocouples at the center of the each step/section, from which the solidification curves were constructed. The forgeab...

A series of calculations has been conducted to study the high-speed interaction space debris (SD) particles with screens finite thickness. For first time, taking into account fracture effects, a numerical solution obtained for problem high-velocity between SD and volumetrically reinforced penetrating composite screen. The were performed using REACTOR 3D software package in three-dimensional set...

Nearly twenty years ago, Structure and Interpretation of Computer Programs (SICP) changed the intellectual landscape of introductory computing courses. Unfortunately, three problems—its lack of an explicit program design methodology, its reliance on domain knowledge, and the whimsies of Scheme— have made it integrate poorly with the rest of the curriculum and fail to maintain its position in se...