Abstract: Disclosed are an aluminum nitride-reinforced aluminum matrix composite (AMC) and a preparation method thereof, relating to the technical field of metal matrix composites (MMCs). The aluminum nitride-reinforced AMC includes the following components: Si, Mg, Nb, Zr, Mo, Zn, Ta, Mn, Cu, Co, In, B, Ge, Ir, a rare earth element, Sn, nano-titanium carbide, nano-chromium nitride, an aluminum nitride nanofiber, nano-aluminum nitride, Al, meso-tetramethyl-tetra-(p-aminophenyl) calix[4] pyrrole, sodium silicate, and 1,3,5-triglycidyl-S-triazinetrione.

Abstract: Provided in the embodiment of the present disclosure is a method for monitoring a state of a blockchain consensus node, including that: an address list of all consensus nodes of a blockchain is acquired; the number of produced blocks and the number of times of voting of the consensus nodes in the produced blocks within a preset time period are recorded; a voting monitoring index of each consensus node is calculated, wherein the voting monitoring index includes at least one of a voting rate and a voting proportion; and in response to the voting monitoring index of the consensus node being lower than a preset alarm threshold, an abnormal state alarm in respect of the corresponding consensus node is issued.

Abstract: Provided in the embodiment of the present disclosure is a method for monitoring a state of a blockchain consensus node, including that: an address list of all consensus nodes of a blockchain is acquired; the number of produced blocks and the number of times of voting of the consensus nodes in the produced blocks within a preset time period are recorded; a voting monitoring index of each consensus node is calculated, wherein the voting monitoring index includes at least one of a voting rate and a voting proportion; and in response to the voting monitoring index of the consensus node being lower than a preset alarm threshold, an abnormal state alarm in respect of the corresponding consensus node is issued.