Higher order stress fields for a mode Ⅰ crack perpendicular to the direction of property variation in a functionally gradient material(FGM), which has an expon
TC4 titanium alloy was welded by double-sided gas tungsten arc welding(GTAW) process in comparison with conventional GTAW process, the microstructure and mechan
The effect of dipole layer of Alq3 and metal on organic electroluminescence in organic light-emitting diodes(OLEDs) was discussed. The relations among energy le