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Development of innovative tripartite partnership for China’s engagement in global health: recommendations from China-Tanzania Cooperation Project on Malaria Control

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贫困所致传染病(英文) 2024年第2期13卷 1-3页

作者： Ma Xuejiao Lu shenning Ding Wei Deng Shanying Wang Duoquan Xiao Ning Mlacha Yeromin Husain Lewis Zhou Xiaonong National Institute of Parasitic Diseases Chinese Center for Disease Control and Prevention (Chinese Center for Tropical Diseases Research) NHC Key Laboratory of Parasite and Vector Biology WHO Collaborating Center for Tropical Diseases National Center for International Research On Tropical Diseases Shanghai China University of Hong Kong Hong Kong China School of Global Health Chinese Center for Tropical Diseases Research Shanghai Jiao Tong University School of Medicine Shanghai China Ifakara Health Institute Dar-es-Salaam Tanzania Institute of Development Studies Brighton UK

基于二轴车过桥振动响应的桥梁模态特性识别方法研究

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振动与冲击 2024年第13期43卷 78-89页

作者：程俭廷林梓康吴晓生王身宁周军勇广州诚安路桥检测有限公司广州510420 广州大学土木工程学院广州510006

为采用移动车辆过桥振动信号间接识别桥梁模态特性参数,达到快速检测路网桥梁群健康状况目的,研究了常规二轴车用于桥梁频率与模态振型同步识别方法。首先,理论推导了忽略车桥耦合效应情况下二轴车过桥的车桥接触点振动响应封闭解,通过... 详细信息

为采用移动车辆过桥振动信号间接识别桥梁模态特性参数,达到快速检测路网桥梁群健康状况目的,研究了常规二轴车用于桥梁频率与模态振型同步识别方法。首先,理论推导了忽略车桥耦合效应情况下二轴车过桥的车桥接触点振动响应封闭解,通过前后车轴振动加速度响应的时滞信号相减构建接触点残余响应,应用双峰理想谱滤波和希尔伯特变换建立了同步识别桥梁频率与模态振型方法。其次,建立了车桥耦合振动数值有限元仿真程序,在考虑车桥耦合效应基础上验证了理论推导的准确性,并同步识别了桥梁频率与模态振型。最后,考虑更不利的路面粗糙度情况,检验了二轴车接触点残差响应的间接识别效果。研究表明在忽略车桥耦合效应情况下接触点残差响应不包含车辆和路面粗糙度影响,可以精准识别桥梁模态特性参数。数值有限元仿真证明通过车体响应间接计算接触点响应、通过桥梁节点插值计算接触点响应以及理论推导三者结果高度吻合,在路面粗糙度等级低的情况下该方法有很好效果。当粗糙度更为不利时,车桥耦合效应明显导致接触点响应残差中仍然包含车辆频率成分,对识别效果有一定干扰。采用接触点残余响应进行桥梁模态特性识别时,建议降低检测速度或优化试验车构造,抑制车桥耦合效应的不利影响。

关键词：桥梁工程车辆扫描法模态特性间接测量二轴车接触点残余响应

Evaluation and spatio-temporal analysis of surface energy flux in permafrost regions over the Qinghai-Tibet Plateau and Arctic using CMIP6 models

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International Journal of Digital Earth 2022年第1期15卷 1947-1965页

作者： Junjie Ma Ren Li Zhongwei Huang Tonghua Wu Xiaodong Wu Lin Zhao Hongchao liu Guojie Hu Yao Xiao Yizhen Du Shuhua Yang Wenhao liu Yongliang Jiao shenning Wang Cryosphere Research Station on the Qinghai-Tibet Plateau State Key Laboratory of Cryospheric ScienceNorthwest Institute of Eco-Environment and ResourcesChinese Academy of SciencesLanzhouPeople’s Republic of China University of Chinese Academy of Sciences BeijingPeople’s Republic of China Key Laboratory for Semi-Arid Climate Change of the Ministry of Education College of Atmospheric SciencesLanzhou UniversityLanzhouPeople’s Republic of China School of Geographical Sciences Nanjing University of Information Science & TechnologyNanjingPeople’s Republic of China Zaozhuang University ZaozhuangPeople’s Republic of China

The surface energy budget over the Qinghai-Tibet Plateau(QTP)and the Arctic significantly influences the climate system with global consequences.The performances of 30 selected Coupled Model Intercomparison Project Phase 6(CMIP6)models were evaluated based on six sites in the QTP and Arctic.The simulation results for latent heat flux(LE)were more accurate in the QTP,where the correlation coefficient and root mean square error(RMSE)were 0.9 and 30 W m−2,respectively.The results for sensible heat flux(H)were more accurate in the Arctic,the correlation coefficient and RMSE were 0.8 and 24 W m−2,respectively.Furthermore,the multiple models mean results revealed that the surface energy flux had seasonal variation and regional differences over the QTP and the Arctic.In the QTP,H was the lowest in winter,increased in spring,and reached the maximum in summer.However,the transitional changes in spring and autumn were not apparent in the Arctic,mainly due to seasonal net radiation difference between the two places.LE was affected by precipitation and surface soil moisture content.This work is important for understanding land-atmosphere interactions and useful for improving the accuracy of land surface models simulations.

关键词： Qinghai-Tibet Plateau Arctic surface energy budget permafrost

Evaluation of Malaria Standard Microscopy and Rapid Diagnostic Tests for Screening—Southern Tanzania,2018–2019

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China CDC weekly 2022年第28期4卷 605-608页

作者： Kangming Lin Mei Li Duoquan Wang Fei Luo shenning Lu Mihayo GMichael Yeromin Mlacha Prosper Chaki Ning Xiao Xiao-nong Zhou Guangxi Zhuang Autonomous Region Center for Disease Control and Prevention Nanning CityGuangxi Zhuang Autonomous RegionChina National Institute of Parasitic Diseases Chinese Center for Tropical Diseases ResearchChinese Center for Disease Control and PreventionNHC Key Laboratory of Parasite and Vector BiologyWHO Collaborating Centre for Tropical DiseasesNational Center for International Research on Tropical DiseasesSchool of Global HealthChinese Center for Tropical Diseases ResearchShanghai Jiao Tong University School of MedicineShanghai MunicipalityChina Chongqing City Center for Disease Control and Prevention Chongqing MunicipalityChina Ifakara Health Institute Dares Salaamthe United Republic of Tanzania.

Summary What is already known about this topic?Microscopy is the gold standard for parasitological confirmation,but the accuracy of microscopic diagnosis is influenced by the skill of the technicians.An alternative is the immunologic-based malaria rapid diagnostic tests(mRDTs).What is added by this report?Our study evaluated standard microscopy in health system(SMHS)and mRDTs for focused screening and treatment of malaria(FSAT)in Southern Tanzania.We showed that mRDTs were more sensitive than local SMHS for diagnosing malaria infection.What are the implications for public health practices?Malaria rapid diagnostic tests can be useful as an alternative to SMHS for FSAT in the local context of Tanzania.

关键词： Malaria diagnosis confirmation

基于Bouc-Wen模型的肌腱-鞘结构非线性位置控制

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机电工程技术 2024年第5期53卷 70-76页

作者：李炎清周佛保程俭廷王身宁刘爱荣陈炳聪广州诚安路桥检测有限公司广州510420 广州大学风工程与工程振动研究中心广州510006 广州大学土木工程学院广州510006

针对肌腱-鞘结构在传递过程中存在严重摩擦、间隙滞后等非线性因素导致无法精准控制的问题,提出了一种基于BoucWen模型的非线性位置控制器。首先,根据Bouc-Wen模型对肌腱-鞘结构的迟滞进行建模;其次,在输出位置反馈的情况下,提出了一种... 详细信息

针对肌腱-鞘结构在传递过程中存在严重摩擦、间隙滞后等非线性因素导致无法精准控制的问题,提出了一种基于BoucWen模型的非线性位置控制器。首先,根据Bouc-Wen模型对肌腱-鞘结构的迟滞进行建模;其次,在输出位置反馈的情况下,提出了一种迟滞观测器以补偿系统的非线性干扰;然后,根据迟滞观测器构建了非线性控制器以实现远端的精确位置控制。同时,还利用Lyapunov稳定性准则分析和证明了肌腱-鞘系统的稳定性和有界收敛性;此外,还考虑了远端外部干扰对系统输出的影响。最后,仿真结果表明所提控制器不仅可以显著改善肌腱-鞘结构的精确控制性能,还能有效抑制外部干扰对系统的影响。与常见的逆前馈控制相比,所提出的控制策略在正弦信号的跟踪误差方面表现出色,其峰值仅为0.011 rad,相较于常规情况下的0.251 rad,显著降低。

关键词：肌腱-鞘结构间隙滞后 Bouc-Wen模型非线性控制

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Role of international network on surveillance and response system leading to malaria elimination: China’s engagement in global health

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Infectious Diseases of Poverty 2022年第3期11卷 63-68页

作者： shenning Lu Lulu Huang Lei Duan Qiuli Xu Xuejiao Ma Wei Ding Duoquan Wang Shan Lv Ning Xiao Chinese Center for Disease Control and Prevention(Chinese Center for Tropical Diseases Research) NHC Key Laboratory of Parasite and Vector BiologyWHO Collaborating Centre for Tropical DiseasesNational Center for International Research On Tropical DiseasesNational Institute of Parasitic DiseasesShanghai200025China Pudong New Area Center for Disease Control and Prevention and Pudong Institute of Preventive Medicine Fudan UniversityPudong New AreaShanghai200136China School of Global Health Chinese Center for Tropical Diseases ResearchShanghai Jiao Tong University School of MedicineShanghai200025China State Key Laboratory of Genetic Engineering Ministry of Education Key Laboratory for Biodiversity Science and Ecological EngineeringMinistry of Education Key Laboratory of Contemporary AnthropologyDepartment of Infectious DiseasesSchool of Life ScienceHuashan HospitalFudan UniversityShanghai200433China

China has accumulated multiple practices and experiences in building and enhancing malaria surveillance and response system. As China’s engagement into global health has gathered stronger momentum than ever, China together with the Swiss Tropical and Public Health Institute and WHO has organised five sessions of the International Forum on Surveillance-Response System Leading to Tropical Diseases Elimination during 2012–2020, in which malaria elimination has always been one of the hottest topics. In this study, the roles of international network on the surveillance and response system were explored to achieve a global malaria-free goal. China’s approach to malaria elimination has demonstrated significance of global collaboration on taking joint prevention and control, and building a worldwide institutional-based network.

关键词： Surveillance and response system Malaria Elimination Network

The “Paired Learning by Doing” Approach for Capacity Building Derived from the China-UK-Tanzania Pilot Project on Malaria Control During 2015–2018

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China CDC weekly 2023年第31期5卷 694-697页

作者： shenning Lu Xuejiao Ma Wei Ding Duoquan Wang Zhengbin Zhou Kangming Lin Fei Luo Shan Lyu Ning Xiao Xiao-nong Zhou National Institute of Parasitic Diseases Chinese Center for Disease Control and Prevention(Chinese Center for Tropical Diseases Research)NHC Key Laboratory of Parasite and Vector BiologyWHO Collaborating Centre for Tropical DiseasesNational Center for International Research on Tropical DiseasesShanghaiChina National Institute of Parasitic Diseases Chinese Center for Disease Control and Prevention(Chinese Center for Tropical Diseases Research)NHC Key Laboratory of Parasite and Vector BiologyWHO Collaborating Centre for Tropical DiseasesNational Center for International Research on Tropical DiseasesSchool of Global HealthChinese Center for Tropical Diseases ResearchShanghai Jiao Tong University School of MedicineShanghaiChina Guangxi Zhuang Autonomous Region Center for Disease Control and Prevention Nanning CityGuangxi Zhuang Autonomous RegionChina Chongqing Center for Disease Control and Prevention.Chongqing China.

China’s growing prosperity has led to an increased role in international affairs,particularly in global health cooperation.Alongside sending medical teams abroad,China’s health authority is gradually expanding its South-South cooperation in public health.However,due to a late start in global health initiatives and limited experience in organizing,coordinating,and implementing intervention projects overseas,China still faces significant challenges in global health,particularly in the local context.Recognizing the longstanding partnership between the Chinese and British governments,they have identified global health as a new area of strategic cooperation.In 2012,the former UK Department for International Development(DFID)initiated a new type of health development cooperation project named the China-UK Global Health Support Programme(GHSP).

关键词： initiated expanding cooperation

基于车辆振动响应间接识别桥梁频率的模型试验研究

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石家庄铁道大学学报（自然科学版） 2024年第1期37卷 16-23页

作者：吴晓生林梓康程俭廷王身宁周军勇广州诚安路桥检测有限公司广东广州510420 广州大学土木工程学院广东广州510006

为证明采用过桥车辆振动信号可以识别桥梁多阶振动频率,搭建了缩尺车桥耦合振动模型进行试验,研究了各类影响因素下采用二轴试验车对桥梁频率的识别效果.首先,介绍了缩尺车桥耦合振动的模型梁和试验车;其次,分析了传感器分别安装于模型... 详细信息

为证明采用过桥车辆振动信号可以识别桥梁多阶振动频率,搭建了缩尺车桥耦合振动模型进行试验,研究了各类影响因素下采用二轴试验车对桥梁频率的识别效果.首先,介绍了缩尺车桥耦合振动的模型梁和试验车;其次,分析了传感器分别安装于模型梁、试验车底座和试验车顶座的振动信号,并对比这3种振动信号对桥梁频率的识别效果;最后,研究了悬架刚度、车身质量、路面粗糙度和运营车流激励对试验车间接识别桥梁频率的影响.结果表明,试验车底座的振动传感器可以识别得到桥梁前3阶竖向振动频率和前2阶扭转振动频率,与安装于桥梁振动传感器的频谱大致相同,说明该传感器不受车体振动影响;试验车顶座的振动传感器可以准确识别桥梁第一阶竖向振动频率,但是桥梁高阶频率受到车体自身振动频率干扰较难识别.各类影响因素主要影响试验车顶座振动传感器的桥梁频率识别效果,对试验车底座振动传感器的桥梁频率识别效果影响很小,证明了所设计试验车在间接测量桥梁动力特性的优越性.

关键词：桥梁工程间接测量频率二轴车模型试验快速傅里叶变换

Profile and determinants of delayed care-seeking and diagnosis among patients with imported malaria: a retrospective study in China, 2014–2021

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Infectious Diseases of Poverty 2022年第6期11卷 50-59页

作者： Tao Zhang Duoquan Wang Yingjun Qian Wei Ruan Ying liu Jing Xia Hui Yan Yuan Sui shenning Lu Xian Xu Jingjing Jiang Xiaofeng Lyu Shuqi Wang Shizhu Li Weidong Li Anhui Provincial Center for Disease Control and Prevention Hefei 230601China National Institute of Parasitic Diseases Chinese Center for Disease Control and Prevention(Chinese Center for Tropical Diseases Research)NHC Key Laboratory of Parasite and Vector BiologyWHO Collaborating Center for Tropical DiseasesNational Center for International Research on Tropical DiseasesShanghai 200025China Zhejiang Provincial Center for Disease Control and Prevention Hangzhou 310051China Henan Provincial Center for Disease Control and Prevention Zhengzhou 450016China Hubei Provincial Center for Disease Control and Prevention Wuhan 430079China Guangxi Zhuang Autonomous Region Center for Disease Control and Prevention Nanning 530028China Brown School Washington UniversitySt.LouisMOUSA School of Global Health Chinese Center for Tropical Diseases ResearchShanghai Jiao Tong University School of MedicineShanghai 200025China

Background: In areas where malaria has been eliminated, delayed care-seeking and diagnosis of imported malaria are constant threats. This study aimed to describe the profile and determinants of delayed care-seeking and diagnosis among patients with imported malaria in China.Methods: This retrospective study assessed surveillance data obtained from 2014 to 2021 in the Chinese provincial-level administrative divisions (PLADs) of Anhui, Henan, Hubei, and Zhejiang, and Guangxi. Epidemiological characteristics were analyzed using descriptive statistics. Furthermore, factors associated with delayed care-seeking and diagnosis among imported malaria cases were identified using multivariate logistic regression.Results: Overall, 11.81% and 30.08% of imported malaria cases had delays in seeking care and diagnosis, respectively. During the study period, there was a decreasing trend in the proportion of imported malaria cases with delayed care-seeking (χ^(2) = 36.099,P < 0.001) and diagnosis (χ^(2) = 11.395,P = 0.001). In multivariate analysis, independent risk factors associated with delayed care-seeking include PLADs (Guangxi as reference), consultations in high-level facilities for the first medical visit, infections with non-Plasmodium falciparum species, and older age. However, PLADs (Guangxi as reference), the purpose of traveling (labour as reference), and infections with non-P. falciparum species increased the risk of delayed diagnosis. Delayed care-seeking (adjusted odds ratio: 1.79,P = 0.001) and diagnosis (adjusted odds ratio: 1.62,P = 0.004) were risk factors for severe disease development.Conclusions: Based on this study’s findings, we strongly advocate for improved access to quality healthcare to reduce the rate of misdiagnosis at the first visit. Infections caused by non-P. falciparum species should be highlighted, and more sensitive and specific point-of-care detection methods for non-P. falciparum species should be developed and implemented. In addition, education programs should be enhanced to reach target p

关键词： Malaria Delayed care-seeking Delayed diagnosis Imported malaria Prevention Re-establishment China Plasmodium falciparum