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Unhealthy Eating Behaviors During Pregnancy and Gestational Weight Gain—Huai’an City,Jiangsu Province,China,2020–2021

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China CDC weekly 2023年第35期5卷 773-778,I0002-I0004页

作者： zifan zhang Weijie Ding Hui Wang Yangyang Cheng Yue zhang Xiaoqin Zhu Xiaolin Xu School of Public Health The Second Affiliated HospitalZhejiang University School of MedicineHangzhou CityZhejiang ProvinceChina Health Care Department Affiliated Hospital of Yangzhou University Huai’an Maternal and Child Health Care CenterHuai’an CityJiangsu ProvinceChina School of Public Health Faculty of MedicineThe University of QueenslandBrisbaneAustralia.

Summary What is already known about this topic?Maintaining a healthy diet and appropriate weight during pregnancy is crucial for both the expectant mother and the *** eating behaviors(UEBs)such as eating out frequently are becoming increasingly prevalent across the ***,there is a dearth of research investigating the relationship between UEBs and gestational weight gain(GWG)specifically in the context of Chinese women.

关键词： becoming mother Jiangsu

Two-parameter-dependent Drag Coefficient Over Sea Surface by Turbulent Modeling

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Communications in Nonlinear Science and Numerical Simulation 1999年第1期4卷 8-12页

作者： Jiachun LI and zifan zhang (Institute of mechanics, CAS, Beijing 100080, China) Institute of mechanics CAS Beijing 100080 China

A new model accounting for both turbulence and sea state effects has been proposed in the current paper to describe momentum exchange through air-sea interface. While long wave components mainly change air flow profile, short wave components exert their influences on the momentum exchange via turbulent stress, which leads to the growth of drag coefficients by a factor of two in young wave age circumstances. As a typical case study, we have considered neutral ABL over a representative regular wave with roughness due to short capillary waves riding over it. The results by the present model are in reasonable agreement with Maat’s analysis numerically fitted by HEXMAX data and Janssen’s results. Two parameter dependence of drag coefficient can resolve the existing discrepency between theory and observations.

关键词： air-sea interaction drag coefficient waveage

Advanced carbon nitride-based single-atomphotocatalysts

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SusMat 2024年第5期4卷 70-113页

作者： zifan zhang Kun Xiang Haitao Wang Xin Li Jing Zou Guijie Liang Jizhou Jiang School of Environmental Ecology and Biological Engineering School of Chemistry and Environmental EngineeringKey Laboratory of Green Chemical Engineering Process of Ministry of EducationEngineering Research Center of Phosphorus Resources Development and Utilization of Ministry of EducationNovel Catalytic Materials of Hubei Engineering Research CenterWuhan Institute of TechnologyWuhanChina Institute of Biomass Engineering Key Laboratory of Energy Plants Resource and UtilizationMinistry of Agriculture and Rural AffairsSouth China Agricultural UniversityGuangzhouChina Hubei Key Laboratory of Low Dimensional Optoelectronic Materials and Devices Hubei University of Arts and ScienceXiangyangChina

Single-atom catalysts(SACs)have rapidly become a hot topic in photocatalytic research due to their unique physical and chemical properties,high activity,and high *** many semiconductor carriers,the special structure of carbon nitride(C3N4)perfectly meets the substrate requirements for stabi-lizing SACs;they can also compensate for the photocatalytic defects of C3N4 materials by modifying energy bands and electronic ***,devel-oping advanced C3N4-based SACs is of great *** this review,we focus on elucidating efficient preparation strategies and the burgeoning photo-catalytic applications of C3N4-based *** also outline prospective strategies for enhancing the performance of SACs and C3N4-based SACs in the future.A comprehensive array of methodologies is presented for identifying and char-acterizing C3N4-based *** includes an exploration of potential atomic catalytic mechanisms through the simulation and regulation of atomic catalytic behaviors and the synergistic effects of single or multiple ***,a forward-looking perspective is adopted to contemplate the future prospects and challenges associated with C3N4-based *** encompasses considerations,such as atomic loading,regulatory design,and the integration of machine learn-ing *** is anticipated that this review will stimulate novel insights into the synthesis of high-load and durable SACs,thereby providing theoretical groundwork for scalable and controllable applications in the field.

关键词： atomic catalytic mechanism carbon nitride improvement strategies photocatalytic applications single-atom catalysts

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保罗·策兰的对话诗学

同济大学学报（社会科学版） 2019年第2期30卷 17-23页

作者：张子帆武汉大学文学院武汉430072

保罗·策兰认为诗是"对话"而非独白,其诗学理念得益于曼德尔施塔姆,理论根基则是马丁·布伯的对话哲学。对话诗学不可缺少的元素是"我""你"以及"诗歌的场所"。策兰诗中的"我""你"是多重、直接和变幻的。"对话"是真实的相遇,在诗的对话... 详细信息

保罗·策兰认为诗是"对话"而非独白,其诗学理念得益于曼德尔施塔姆,理论根基则是马丁·布伯的对话哲学。对话诗学不可缺少的元素是"我""你"以及"诗歌的场所"。策兰诗中的"我""你"是多重、直接和变幻的。"对话"是真实的相遇,在诗的对话中,"我—你"关系得以展开,精神涌现。对话者不是认知主体,他人不是作为客体呈现于我,而是"共在者"。诗歌为了勘测真实,"我—你"关系对应的是真实,"我—它"关系对应的是事实。诗歌寻找对话者,又要求沉默,策兰诗的张力正来自吐露与吞咽之间的矛盾。"对话"先天要求平等、责任和理解,而不是占有、利用和掠夺。"对话"又要求距离,"对话"能穿过时间,诗歌能够克服时间,诗歌要求永恒。

关键词：保罗·策兰对话诗学 “我-你” “我-它” 诗歌的场所

Exosomes derived from tendon stem/progenitor cells enhance tendon-bone interface healing after rotator cuff repair in a rat model

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Bioactive Materials 2024年第10期40卷 484-502页

作者： Yanwei He Shihao Lu Wenbo Chen Li Yang Fangqi Li Peng Zhou Zan Chen Renwen Wan zifan zhang Yaying Sun Jinrong Lin Yisheng Chen Zhiwen Luo Chen Xu Shiyi Chen Department of Sports Medicine Huashan Hospital Fudan UniversityShanghai200040China Department of Orthopedics Shanghai Changzheng HospitalNaval Medical UniversityShanghai200003China Department of Rheumatology and Immunology Affiliated HospitalSouthwest Medical UniversityLuzhouSichuan646000China Department of Trauma and Reconstructive Surgery RWTH Aachen University HospitalAachen52074Germany Department of Orthopaedics The Affiliated Hospital of Southwest Medical UniversityLuzhou646000China Department of Sports Medicine Shanghai General HospitalShanghai Jiaotong UniversityShanghai200080China

The rate of retear after surgical repair remains *** stem cells(MSCs)have been extensively employed in regenerative medicine for several ***,safety and ethical concerns constrain their clinical *** Stem/Progenitor Cells(TSPCs)-derived exosomes have emerged as promising cellfree therapeutic ***,urgent studies are needed to investigate whether TSPC-Exos could enhance tendon-bone healing and elucidate the underlying *** this study,TSPC-Exos were found to promote the proliferation,migration,and expression of fibrogenesis markers in ***,TSPC-Exos demonstrated an ability to suppress the polarization of M1 macrophages while promoting M2 macrophage *** a rat model of rotator cuff repair,TSPC-Exos modulated inflammation and improved the histological structure of the tendon-bone interface,the biomechanical properties of the repaired tendon,and the function of the ***,TSPC-Exos exhibited high expression of miR-21a-5p,which regulated the expression of *** PDCD4/AKT/mTOR axis was implicated in the therapeutic effects of TSPC-Exos on proliferation,migration,and fibrogenesis in *** study introduces a novel approach utilizing TSPC-Exos therapy as a promising strategy for cell-free therapies,potentially benefiting patients with rotator cuff tear in the future.

关键词： Tendon stem cells Exosome Macrophages MicroRNA-21a-5p Rotator cuff tear Tendon-to-bone healing

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水气动量交换的实验研究

空气动力学学报 1999年第3期17卷 285-291页

作者：张子范李家春中国科学院力学研究所北京100080

在风浪槽中进行水气动量交换实验，测量了不同风速和风区下的波浪及空气湍流流场。测量数据表明水面上风速分布符合对数律，水气界面附近存在小范围的动量交换常通量层。阻力系数ＣＤ随风速增加线性增长，随波龄增加而减小。这一趋... 详细信息

在风浪槽中进行水气动量交换实验，测量了不同风速和风区下的波浪及空气湍流流场。测量数据表明水面上风速分布符合对数律，水气界面附近存在小范围的动量交换常通量层。阻力系数ＣＤ随风速增加线性增长，随波龄增加而减小。这一趋向与理论分析及外海实测结果一致。对风浪发展过程中波浪和空气湍流谱结构的分析证明了水气运动的耦合关系。

关键词：风浪槽实验水气相互作用动量通量阻力系数

Immunization coverage,knowledge,satisfaction,and associated factors of non-National Immunization Program vaccines among migrant and left-behind families in China:evidence from Zhejiang and Henan provinces

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Infectious Diseases of Poverty 2023年第5期12卷 69-80页

作者： Yaguan Zhou Duanhui Li Yuan Cao Fenhua Lai Yu Wang Qian Long zifan zhang Chuanbo An Xiaolin Xu School of Public Health The Second Afliated HospitalZhejiang University School of MedicineYuhangtang Road 866Hangzhou 310058ZhejiangChina The Key Laboratory of Intelligent Preventive Medicine of Zhejiang Province HangzhouZhejiangChina Songxian Center for Disease Control and Prevention LuoyangHenanChina Department of Immunoprophylaxis Xiaoshan Center for Disease Control and PreventionHangzhouZhejiangChina Global Health Research Center Division of Social SciencesDuke Kunshan UniversityKunshanJiangsuChina Global Health Research Center Duke Kunshan UniversityKunshanJiangsuChina School of Public Health Faculty of MedicineThe University of QueenslandBrisbaneAustralia

Background Migrant and left-behind families are vulnerable in health services utilization,but little is known about their disparities in immunization of non-National Immunization Program(NIP)*** study aims to evaluate the immunization coverage,knowledge,satisfaction,and associated factors of non-NIP vaccines among local and migrant families in the urban areas and non-left-behind and left-behind families in the rural areas of *** A cross-sectional survey was conducted in urban areas of Zhejiang and rural areas of Henan in China.A total of 1648 caregivers of children aged 1-6 years were interviewed face-to-face by a pre-designed online questionnaire,and their families were grouped into four types:local urban,migrant,non-left-behind,and ***-NIP vaccines includedHemophilus influenza b(Hib)vaccine,varicella vaccine,rotavirus vaccine,enterovirus 71 vaccine(EV71)and 13-valent pneumonia vaccine(PCV13).Log-binomial regression models were used to calculate prevalence ratios(PRs)and 95%confidence intervals(CIs)for the difference on immunization coverage of children,and knowledge and satisfaction of caregivers among *** network models were conducted to explore the interplay of immunization coverage,knowledge,and *** regression models with odds ratios(ORs)and 95%CIs were used to estimate the associated factors of non-NIP *** The immunization coverage of all non-NIP vaccines and knowledge of all items of local urban families was the highest,followed by migrant,non-left-behind and left-behind *** with local urban children,thePRs(95%CIs)for getting all vaccinated were 0.65(0.52-0.81),0.29(0.22-0.37)and 0.14(0.09-0.21)among migrant children,non-left-behind children and left-behind children,*** coverage-knowledge-satisfaction network model showed the core node was the satisfaction of vaccination ***-NIP vaccination was associated with characteristics of both children and car

关键词： Non-National Immunization Program vaccines Migrant family Left-behind family Immunization coverage Immunization knowledge Immunization satisfaction China

不同时间尺度的风功率建模及LOLP算法研究

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可再生能源 2014年第11期32卷 1658-1664页

作者：张紫凡华南理工大学广州学院广东广州510800

风功率与时间的紧密相关性,使得风电有别于常规机组,因此,必须建立能够反映风功率时间特性的模型。大规模风电的接入对电力系统的可靠运行带来威胁,采用随机生产模拟以及序列运算等方法可以评估电源的可靠性,LOLP和LOLE则是其中的核心... 详细信息

风功率与时间的紧密相关性,使得风电有别于常规机组,因此,必须建立能够反映风功率时间特性的模型。大规模风电的接入对电力系统的可靠运行带来威胁,采用随机生产模拟以及序列运算等方法可以评估电源的可靠性,LOLP和LOLE则是其中的核心指标。文章利用每10 min风功率的测量数据,建立在时间序列上的风功率多状态模型,并采用随机生产模拟的方法,提出了含风电场的电力系统长期LOLP算法;建立在时间断面上的风功率马尔可夫链模型和状态转移矩阵;采用序列运算的方法,提出了含风电场的电力系统短期LOLP算法;最后,在IEEE-RTS 79模型中实现了上述算法,得到了相关结论。文章的研究对于含风电场的电力系统电源规划、运行规划以及可靠性评估等具有重要意义。

关键词：风功率模型 LOLP 多态模型马尔可夫链随机生产模拟序列运算

基于概率累积损伤及Wiener过程的转向架可靠性研究

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华南理工大学学报（自然科学版） 2019年第7期47卷 90-98页

作者：张子璠李强李响张朝杰北京交通大学机械与电子控制工程学院

提出一种基于实测应力数据的研究城市轨道车辆构架疲劳可靠性变化规律的方法.为了建立结构损伤与可靠性之间的关系,通过新型启发式算法拟合出每一日应力谱的概率密度函数,进而基于统计分布特征推导了一种考虑载荷相互作用的概率累积损... 详细信息

提出一种基于实测应力数据的研究城市轨道车辆构架疲劳可靠性变化规律的方法.为了建立结构损伤与可靠性之间的关系,通过新型启发式算法拟合出每一日应力谱的概率密度函数,进而基于统计分布特征推导了一种考虑载荷相互作用的概率累积损伤模型;然后考虑到某一结构区域不同传感器结果的差异性,采用具有随机效应的Wiener过程通过概率损伤统计量与马尔可夫链蒙特卡洛方法求得结构可靠度随运营里程的总体变化规律.实测数据计算结果表明,提出的可靠性计算方法可以得到与工程经验相符的构架疲劳可靠性结果.

关键词：城市轨道车辆构架疲劳可靠性概率累积损伤 Wiener过程灰狼算法