With the sixth large-scale railway speed-up, the quality of the axles is essential to the safety of the locomotive.According to the high-speed axle technical standard for the control of alloy elements in axle steel, optimization experiments of 25CrMo steel composition were performed by vacuum inductive melting.In order to study the hardenability of
While lower vertebrates contain adult stem cells (aSCs) that maintain homeostasis and drive un-exhaustive organismal growth, mammalian aSCs display mainly the homeostatic function.Here, we use lineage analysis in the medaka marigold velvet curtains fish gill to address aSCs and report separate stem cell populations for homeostasis and growth.These
Chatter is an obstacle for achieving high-quality machining process and high production rate in industries.Chatter is an unstable self-exciting paper lantern texture phenomenon that leads to tool wear, poor surface finish, and downgrade the milling operations.A novel active control strategy to attenuate the chatter vibration is proposed.PD/PID cont
Post-stroke depression (PSD) represents a significant neuropsychiatric complication that affects between 39% and 52% of stroke survivors, leading to impaired recovery, decreased quality of life, and increased mortality.This comprehensive review synthesizes our current knowledge of PSD, encompassing its epidemiology, risk factors, underlying neuroch