Benign prostatic hyperplasia and periodontitis are common chronic aptamil allerpro diseases in middle-aged and elderly people, with many common risk factors and pathogenesis.Epidemiological studies have found that periodontitis can increase the risk of prostate hyperplasia, however, its mechanism is not clear yet.This article reviews the current re
Many existing reinforced concrete (RC) structures constructed more than 50 years ago now require maintenance.This is especially true in cold, snowy regions where significant frost damage deterioration of RC structures becomes a severe problem.In this study, falling-weight impact tests were performed to investigate the impact resistance behavior sim
The large-scale rectangular pipe jacking technology has attracted more and more attention in the construction of urban underground pipe galleries, especially the problem of prediction and control of the surface settlement.Taking the pipe gallery project of Chengbei Road in Suzhou as an example, the settlement values of three groups of monitoring se