The effect of heat and strain during the semisolid processing route on microstructural evolution mechanical performance Al-5.5wt%Si-5wt%Zn-0.2wt%Mg alloy was evaluated. as cast heated partially melted to 588 °C (fs = 0.40), thixoformed (in an open die forged) solution heat-treated (SHT) at 525 for 1 6 h. chemical distribution (SEM-EDS) main alloying elements were evaluated each step route. SHT ...

in this research optimal reconfiguration strategy of the improved srr reconfigurable mobile robot based on force-angle stability measure has been designed using genetic algorithm. path tracking nonlinear controller which keeps robot’s maximum stability has been designed and simulated in matlab. motion equations of the robot have been derived in parametric form by means of newton- euler, lagrang...

introduction: one of the main sections of warm up is stretching which the importance of them is static and dynamic stretching. the purpose of this study was to examine the effects of static and dynamic stretching within a pre-exercise warm-up on the static and dynamic in soccer players. materials and methods: eighteen physical education female students (height: 159.68 ± 5.94 cm; mass: 60.21 ± 5...

Effects of the filament diameter on the microstructure and the critical current density (J ) were investigated in the external diffusion processed multififamentary Nb Sn-Cu superconducting composites. J was measured in transvere magnetic fields(H) of 10-17 Tesla. The mi~rostructures were examined using scanning electron microscopy (SEM) and transmission electron microscopy (TEM) after each step...