A multi-head-attention-network-based method is proposed for effective information extraction from multidimensional data to accurately predict the remaining useful life (RUL) of gradually degrading equipment. The features desired equipment were evaluated using a comprehensive evaluation index, constructed discrete coefficients, based on correlation, monotonicity, and robustness. For extraction, ...

Rapid suppression is a must in the mitigation of ventilation air methane (VAM) explosions. Flame proves to be much more challenging than prevention flame initiation due small physics timescale (~1 s). This study numerically investigates effect spherical obstructions on propagation dynamics tube closed at one end. Obstructions with an inflating geometry, installed different locations, were exami...