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Mengjie Hu, Junfang Xia, Mingkuan Zhou, Zhengyuan Liu and Dingyang Xie
In order to solve the problem of the poor seed-cleaning performance of the inside-filling pneumatic cotton precision seed-metering device, a double-sided seed-cleaning mechanism combining a seed-cleaning scraper and seed-disturbing air nozzle was designe...
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Mengjie Yang, Zhe Chen, Mengjie Zhou, Xiaojin Liang and Ziyue Bai
The coronavirus disease 2019 (COVID-19) pandemic has had tremendous and extensive impacts on the people?s daily activities. In Chicago, the numbers of crime fell considerably. This work aims to investigate the impacts that COVID-19 has had on the spatial...
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