Serial Interval and Generation Interval for Imported and Local Infectors, Respectively, Estimated Using Reported Contact-Tracing Data of COVID-19 in China

The emerging virus, COVID-19, has caused a massive outbreak worldwide.Based on the publicly available contact-tracing data, we identified 509 transmission chains from 20 provinces in China and estimated the serial interval (SI) Banner and generation interval (GI) of COVID-19 in China.Inspired by different possible values of the time-varying reprodu

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Optimization of hoisting parameters in a multi-rope friction mine hoist based on the multi-source coupled vibration characteristics of hoisting catenaries

To avoid catenary collision in a multi-rope friction mine hoist, in this study, the relevant hoisting parameters based on the multi-source coupled vibration characteristics of hoisting catenaries are optimized.First, the multi-source coupled vibration characteristics of hoisting catenaries were Ironing Mats investigated based on an established theo

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