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您的检索式：作者名="Chanjun Ren"
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| 1 | Personnel protection strategy for healthcare workers in Wuhan during the COVID-19 epidemic显示文摘Objective:To identify the effectiveness of a personnel protection strategy in protection of healthcare workers from SARS-CoV-2 infection.Design:During the COVID-19 pandemic,943 healthcare staff sent from Guangzhou to Wuhan to care for patients with suspected/confirmed COVID-19 received infection precaution training before their mission and were equipped with Level 2/3 personal protective equipment(PPE),in accordance with guidelines from the National Health Commission of China.We conducted a serological survey on the cumulative attack rate of SARS-CoV-2 among the healthcare workers sent to Wuhan and compared the seropositive rate to that in local healthcare workers from Wuhan and Jingzhou.Results:Serial tests for SARS-CoV-2 RNA and tests for SARS-CoV-2 immunoglobulin M and G after the 6-8 week mission revealed a zero cumulative attack rate.Among the local healthcare workers inWuhan and Jingzhou of Hubei Province,2.5%(113 out of 4495)and 0.32%(10 out of 3091)had RT-PCR confirmed COVID-19,respectively.The seropositivity for SARS-CoV-2 antibodies(IgG,IgM,or both IgG/IgM positive)was 3.4%(53 out of 1571)in local healthcare workers from Wuhan with Level 2/3 PPE working in isolation areas and 5.4%(126 out of 2336)in healthcare staff with Level 1 PPE working in non-isolation medical areas,respectively.Conclusions and relevance:Our study confirmed that adequate training/PPE can protect medical personnel against SARS-CoV-2. | Fan Fan Hou Fuling Zhou Xin Xu Daowen Wang Gang Xu Tao Jiang Sheng Nie XiaoyanWu Chanjun Ren Guangyu Wang Johnson Yiu-Nam Lau Xinghuan Wang Kang Zhang | 2020 | Precision Clinical Medicine2020，3，3： | 0 |
| 2 | Numerical modeling of global seismic phases and its application in seismic phase identification显示文摘Earthquake data include informative seismic phases that require identification for imaging the Earth's structural interior.In order to identify the phases,we created a numerical method to calculate the traveltimes and raypaths by a shooting technique based upon the IASP91 Earth model,and it can calculate the traveltimes and raypaths for not only the seismic phases in the traditional traveltime tables such as IASP91,AK135,but also some phases such as pPcP,pPKIKP,and PPPPP.It is not necessary for this method to mesh the Earth model,and the results from the numerical modeling and its application show that the absolute differences between the calculated and theoretical traveltimes from the ISAP91 tables are less than 0.1 s.Thus,it is simple in manipulation and fast in computation,and can provide a reliable theoretical prediction for the identification of a seismic phase within the acquired earthquake data. | Chanjun Jiang Youxue Wang Bin Xiong Qianci Ren Jinfeng Hu Wenqi Gao Yi Tian Xi Zhuo | 2019 | Earthquake Science2019，32，2： | 0 |
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