This study examines the effectiveness of the low-carbon pilot city program in promoting green innovation outcomes in China.Using a time-varying difference-in-differences model based 15-eg1053cl on 277 cities from 2003 to 2019, this study finds that the implementation of the low-carbon pilot city program has a positive and significant impact on city

Substantial clinical evidence supports the notion that ciliary function in the airways is important in COVID-19 pathogenesis.Although ciliary damage has been observed in both in vitro and in vivo models, the extent or nature of impairment of mucociliary transport (MCT) in in vivo models remains unknown.We hypothesize that SARS-CoV-2 infection resul

[Objectives] To study the target assignment in the formation reconfiguration of unmanned ships,a target assignment method is proposed.[Methods] Firstly,a distance-based cost function is generated by the current positions of the unmanned ships and the fixed target points.Secondly,based on the auction theory and according to donitsirauta the rapidity