Tie Song

Research on Calculation Method of Vertical Deflection Based on Gravity Data

Gang Yang, Xia Li, Xufeng Zheng, Tie Song

Summary The vertical deflection indicates the inclination of the geoid to the earth ellipsoid, reflecting the mass distribution and migration of materials within the earth, therefore, the study of vertical deflection is an important work in geophysics. Based on Stokes boundary value …

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[Survey on diarrhea symptoms and diarrhea vaccination willingness of residents in Tianjin].

Shiming Cheng, Lu Gao, Shubin Si, Yang Wang et autres

The incidence of diarrhea symptoms of residents was slightly higher in Tianjin, but they were less willing to be vaccinated against diarrhea. People who often go outside and go abroad were more willing to be vaccinated against diarrhea. It is suggested that …

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Bidirectional adaptive control strategy for the interconnected converter of AC/DC hybrid microgrids

Xiaohui Wang, M. Zhang, Tie Song, Qi Yang et autres

The operating characteristics of ac frequency and dc voltage contradict with each other due to the coupling effect of interconnected converters(IC), and affect the stability of AC/DC hybrid microgrids under disturbances. In this paper, a bidirectional adaptive control strategy of IC is …

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Risk assessment for precise intervention of COVID-19 epidemic based on available big data and spatio-temporal simulation method: Empirical evidence from different public places in Guangzhou, China

Shuli Zhou, Suhong Zhou, Zhong Zheng, Junwen Lu et autres

Risk assessment of the intra-city spatio-temporal spreading of COVID-19 is important for providing location-based precise intervention measures, especially when the epidemic occurred in the densely populated and high mobile public places. The individual-based simulation has been proven to be an effective method …

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Comprehensive narrative review of real-world COVID-19 vaccines: viewpoints and opportunities

Shelan Liu, Min Kang, Na Zhao, Yali Zhuang et autres

Currently, people all over the world have been affected by coronavirus disease 2019 (COVID-19). Fighting against COVID-19 is the top priority for all the countries and nations. The development of a safe and effective COVID-19 vaccine is considered the optimal way of …

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[Progress in prevention and control of Nipah virus disease].

HuLan Shu, K Y Wang, S L Liu, M Zhang et autres

Nipah virus disease (NVD) is a newly emerged zoonosis with a case fatality rate of 40%-75%. NVD is a severe threat to human health and the development of livestock farming. NVD has become one of the emerging infectious diseases with great concern …

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Development and multi-center clinical trials of an up-converting phosphor technology-based point-of-care (UPT-POCT) assay for rapid COVID-19 diagnosis and prediction of protective effects

Baisheng Li, Yao Wang, Xiaohui Wang, Yugui Zhou et autres

BACKGROUND: Quantitative point-of-care testing assay for detecting antibodies is critical to COVID-19 control. In this study, we established an up-conversion phosphor technology-based point-of-care testing (UPT-POCT), a lateral flow assay, for rapid COVID-19 diagnosis, as well as prediction of seral neutralizing antibody (NAb) …

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[Analysis on characteristics and influencing factors of COVID-19 confirmed cases with viral nucleic acid re-positive after discharge in Guangdong Province].

Xiaohua Tan, Min Kang, Aiping Deng, B S Li et autres

SARS-CoV-2 viral nucleic acid re-positive is found in COVID-19 confirmed cases after discharge in Guangdong Province. Most re-positive cases are confirmed among 14 d after discharge and re-test to negative among 28 d after re-positive date. Age is an risk factor for …

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Effectiveness of 14 day quarantine strategy: Chinese experience of prevention and control

Hongwei Tu, Keqi Hu, Meng Zhang, Yali Zhuang et autres

Tie Song and colleagues argue that a 14 day quarantine of inbound passengers is an effective and proportionate measure to control imported covid-19

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Co-benefits of nonpharmaceutical intervention against COVID-19 on infectious diseases in China: A large population-based observational study

Jianpeng Xiao, Jiya Dai, Jianxiong Hu, Tao Liu et autres

Background : Nonpharmaceutical interventions (NPIs) are public health measures that aim to suppress the transmission of infectious diseases, including border restrictions, quarantine and isolation, community management, social distancing, face mask usage, and personal hygiene. This research aimed to assess the co-benefits of …

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Containing the Transmission of COVID-19: A Modeling Study in 160 Countries

Yan Niu, Jia Rui, Qiupeng Wang, Wei Zhang et autres

Background: It is much valuable to evaluate the comparative effectiveness of the coronavirus disease 2019 (COVID-19) prevention and control in the non-pharmacological intervention phase of the pandemic across countries and identify useful experiences that could be generalized worldwide. Methods: In this study, …

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The impacts of precipitation patterns on dengue epidemics in Guangzhou city

Haorong Meng, Jianpeng Xiao, Tao Liu, Zhihua Zhu et autres

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