RESUMO
In order to fabricate three-dimensional metal microstructures, a combined machining process based on 3D printing technology and electroforming technology is proposed. Firstly, a substrate with microstructures is fabricated by 3D printing technology, and then the microstructures were fabricated by electroforming technology. The influence of process parameters such as current density, distance between electrodes and pulse current duty cycle on the electroformed layer were studied and analyzed. It was determined that the peak current density 6A/dm2, the void ratio 20%, and the distance between electrodes 40 mm were the optimum process conditions of electroforming experiment. The electroforming experiments of different microstructures were carried out with the optimum process parameters.
RESUMO
Implicit Schadenfreude of disaster spectators, with augmentation of implicit self-esteem and higher reward responsiveness as indicators, and the influence of insecurity and masculinity was explored in two studies. Both studies were conducted under conditions without any clearly legitimizing factors. Experimental (priming with disaster video) and control (priming with neutral video) groups were compared using the Implicit Association Test in Study 1, the results of which showed augmentation of implicit self-esteem in the experimental group. In Study 2, participants who read and believed a fabricated news report of fire disaster via a local area network website showed higher reward responsiveness in a reward-based signal-detection task. Other results showed that insecurity negatively predicted the augmentation of implicit self-esteem and reward responsiveness, while masculinity only negatively predicted the augmentation of implicit self-esteem.