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In order to study the effect of melatonin on the storage quality and energy metabolism of postharvest green pepper (Capsicum frutescens L.). The green pepper was used as the experiment material in this experiment with different concentrations (100, 200 and 300 μmol/L) at low temperature (9 ℃). To investigate the effects of melatonin treatment on the storage quality and energy metabolism of green pepper fruits. The results showed that melatonin treatment could effectively reduce decay rate and slow down the decline of fruit hardness of green pepper. In particular, the treatment effect of 200 μmol/L melatonin was the best. In addition, melatonin could delay the decline of capsaicin and chlorophyll content, maintained a lower MDA content, inhibited the degradation of ATP, ADP and AXP, promoted the accumulation of AMP content, and maintained a higher energy charge level in green pepper. Melatonin could also maintain high SDH, CCO, H+-ATPase and Ca2+-ATPase activity in green pepper. Correlation analysis showed that the activities of ATP, ADP, AXP, energy charge, H+-ATPase and Ca2+-ATPase in green pepper were significantly negatively correlated with the decay rate (P

In order to solve the delay caused by step-by-step calculation and the computational complexity caused by iterative “exclusive-or” computation during the encoding process,a dimensionality reduction strategy was proposed and defined.Based on this,system polarization code parallel coding algorithm for cracking strategy was proposed.Simulation and computational complexity analysis were carried out on AWGN channel.The results show that the coding gain of the above algorithm is slightly better than the traditional one or almost the same,but the computational complexity is up to 80.92%,which is more suitable for hardware implementation and engineering application.It is more suitable for hardware implementation and has a certain practical value.

In order to solve the delay caused by step-by-step calculation and the computational complexity caused by iterative “exclusive-or” computation during the encoding process,a dimensionality reduction strategy was proposed and defined.Based on this,system polarization code parallel coding algorithm for cracking strategy was proposed.Simulation and computational complexity analysis were carried out on AWGN channel.The results show that the coding gain of the above algorithm is slightly better than the traditional one or almost the same,but the computational complexity is up to 80.92%,which is more suitable for hardware implementation and engineering application.It is more suitable for hardware implementation and has a certain practical value.