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A Framework of L2 Oral Fluency Developmentin the FL Classroom Setting

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现代外语 1999年第2期22卷 202-204页

作者： zhang wenzhong 武汉大学·外语学院

ThepresentstUdyaimstoconstrUctatheoreticalframeworkofLZoralfluencydevelopmentintheFLclassroomsetting.Itisdividedintofourpar'ts:(i)definitionofLZoralfluency,(n)waysinwhichthelearner'Soralfluencyisdescribedandmeasured,(... 详细信息

关键词： LZ oral fluency learning variables agency indices developmental framework

City Health Examination in China:A Methodology and Empirical Study

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Chinese Geographical Science 2021年第6期31卷 951-965页

作者： zhang wenzhong CAO Jing HE Ju CHEN Li Key Laboratory of Regional Sustainable Development Modeling Institute of Geographic Sciences and Natural Resources ResearchChinese Academy of SciencesBeijing100101China College of Resources and Environment University of Chinese Academy of SciencesBeijing100190China College of Applied Arts and Science Beijing Union UniversityBeijing100191China

National urban planning,construction,and management levels have undergone qualitative changes in China since 2000.Nonetheless,problems caused by rapid urbanization are becoming increasingly prominent.The concept of the city health examination appears to tackle these problems and is being gradually implemented,starting from the implementation of a national strategy and leading to the concrete practice of high-quality urban development.This paper elaborates on the basic philosophy and theory of the city health examination,briefly explains indicator selection and aims,and comprehensively illustrates examination methods.It then describes the empirical research that operationalized the dataset collected from a satisfaction survey administered during the 2020 city health examination.It aims to provide a reference for the standardization,specialization,analysis,and application of the results of the city health examination in China;this may help promote a smooth elimination of‘urban diseases’and allow for the development of high-quality livable cities.This research shows that city residents are generally more satisfied with the landscape features,ecological livability,and security resilience;it also shows that residents are generally more dissatisfied with traffic issues.Residents with different characteristics showed different satisfaction levels toward different indicators.Residents were also shown to be more sensitive to innovation vitality,ecological livability,and health and comfort in considering whether to stay in their current city.

关键词： city health examination urban disease methodology living environment satisfaction survey

Study on the synergy between intra-urban resident＇s migration and job change in Beijing

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Journal of Geographical Sciences 2015年第8期25卷 978-990页

作者： YU Jianhui DONG Guanpeng zhang wenzhong LI Jiaming Institute of Geographic Sciences and Natural Resources Research CAS Beijing 100101 China Key Laboratory of Regional Sustainable Development Modeling CAS Beijing 100101 China Sheffield Methods Institute Faculty of Social Sciences The University of Sheffield Interdisciplinary Centre of the Social Sciences (ICOSS) 219 Portobello Sheffield S1 4DP UK

People＇s decisions of residential mobility in housing market and decisions of job change in labor market play an essential role in the formation and dynamics of urban spatial structure. This paper investigates the relationship between residential relocation and job change and its heterogeneity using a large-scale survey of residential living satisfaction and preferences in Beijing. Several conclusions are drawn as follows： 1） People＇s decisions of residential mobility are significantly positively correlated with their decisions of job change, indicating that these two-dimensional decisions are in fact a correlated decision process rather than two independent decision processes. 2） There is heterogeneity in the correlated decisions of residential mobility and job change. More specifically, the interrelationship between the decisions of residential mobility and job change among people without Beijing hukou, renters and single-worker households is more intensive than people with Beijing hukou, homeowners and multi-worker households. In addition, there is heterogeneity in the determinants of residential relocation and job change between groups with different types of housing tenure, household registration status and family employment structure. 3） For renters, commuting time can significantly increase the probability of residential relocation, which indicates that residents of different socioeconomic attributes have very different responses to commuting time costs.

关键词： heterogeneity migration residential housing adjustment conclusions employment registration 协同性 worker

Spatio-temporal Analysis of Urban Spatial Interaction in Globalizing China—A Case Study of Beijing-Shanghai Corridor

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Chinese Geographical Science 2009年第2期19卷 126-134页

作者： WU Wenjie zhang wenzhong JIN Fengjun DENG Yu Institute of Geographic Sciences and Natural Resources Research Chinese Academy of Sciences Beijing 100101 China Graduate University of the Chinese Academy of Sciences Beijing 100049 China

This paper aims to explore urban geography with a new perspective. Endowed with the urban geography connotations, an improved data field model is employed to integrate temporal dimension into spatial process of cities in a typical region in this article. Taking the Beijing-Shanghai Corridor including 18 cities as an example, the authors chose the city centricity index (CCI) and the spatial data field model to analyze the evolution process and features of sub-region and urban spatial interaction in this corridor based on the data of 1991, 1996 and 2002. Through the analy- sis, we found that: 1) with the improvement of the urbanization level and the development of urban economy, the cit- ies’ CCI grew, the urban spatial radiative potential enhanced and the radiative range expanded gradually, which reflects the urban spatial interaction’s intensity has been increasing greatly; 2) although the spatial interaction intensity among the cities and sub-regions in the Beijing-Shanghai Corridor was growing constantly, the gap of the spatial interaction strength among different cities and sub-regions was widening, and the spatial division between the developed areas and the less developed areas was obvious; and 3) the intensity of the spatial interaction of Beijing, Shanghai and their urban agglomerations was far greater than that in small cities of other parts of the corridor, and it may have a strong drive force on the choice of spatial location of the economic activities.

关键词：空间相互作用城市地理学走廊上海北京时空分析相互作用强度全球化

中国城市电力生产总碳强度的时空演变及影响因素

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地理学报 2024年第3期79卷 712-731页

作者：马诗萍谢永顺陈宏阳张文忠清华大学能源环境经济研究所北京100084 清华大学环境学院北京100084 中国科学院地理科学与资源研究所北京100101 中国科学院大学资源与环境学院北京100049

电力部门是中国实现碳达峰、碳中和目标的关键部门,剖析城市尺度电力生产总碳强度的时空特征及影响因素,对于细化电力生产减排政策、引导区域协同降碳具有重要意义。本文利用21543座6000 kW及以上电厂的微观数据,结合能源、经济、社会... 详细信息

电力部门是中国实现碳达峰、碳中和目标的关键部门,剖析城市尺度电力生产总碳强度的时空特征及影响因素,对于细化电力生产减排政策、引导区域协同降碳具有重要意义。本文利用21543座6000 kW及以上电厂的微观数据,结合能源、经济、社会多源统计数据,核算了2003年、2010年和2017年中国城市电力生产总碳强度,并运用探索性空间数据分析、IDALMDI分解、STIRPAT模型等方法,揭示了城市尺度电力生产总碳强度的时空演化规律及影响因素。结果表明:(1) 2003—2017年中国整体电力生产总碳强度加速下降,但内部差异持续扩大;城市尺度空间分异明显,“博台线”东北半壁长期高于西南半壁;空间集聚程度显著提升,东北和华北地区是总碳强度下降的关键点。(2)火电能耗因子是前期电力生产总碳强度下降的主导因素,后期发电结构因子成为重要影响因素,其他电力系统因素影响较小但空间差异明显。(3)各社会经济因素对电力生产总碳强度的影响随时间变化,通过作用于电力需求、电力政策、电力技术、清洁电力发展空间的复杂系统引起电力系统特征变化。(4)电力生产总碳强度与人均GDP在2003年和2010年存在倒“U”型曲线关系,2017年呈线性正相关关系,这是由于新能源电力快速发展突破了适用于火力发电的环境库兹涅茨曲线传统解释框架。未来电力生产部门减排工作应充分考虑空间异质性,并需持续关注新兴电力技术突变对传统理论框架的影响。

关键词：电力生产总碳强度城市尺度环境库兹涅茨曲线时空格局影响因素

我国创新链、产业链空间协同配置与区域经济布局研究

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中国科学院院刊 2024年第4期39卷 641-650页

作者：余建辉张文忠李佳洺中国科学院地理科学与资源研究所北京100101 中国科学院大学资源与环境学院北京101408

新时代中国经济的发展动力正逐步由传统生产要素投入、出口拉动等向科技创新驱动转变,科技创新日益成为中国经济发展的主引擎。我国需要抓紧解决科技与经济“两张皮”等难点问题,以及资源配置重复、科研力量分散等突出问题,在复杂多变... 详细信息

新时代中国经济的发展动力正逐步由传统生产要素投入、出口拉动等向科技创新驱动转变,科技创新日益成为中国经济发展的主引擎。我国需要抓紧解决科技与经济“两张皮”等难点问题,以及资源配置重复、科研力量分散等突出问题,在复杂多变的发展环境下进一步优化创新链、产业链空间协同配置,推动区域经济合理和科学布局。文章从空间布局的角度分析了我国创新链、产业链区域差异日益扩大的空间格局与发展趋势,发现我国科技支撑能力和创新型产业布局在国土空间上存在错位,创新链内部链条衔接不够紧密,部分产业链资源调配距离长、链条短,以及西部地区难以完全承接融入东部产业链。针对这些特征与问题,文章提出了“抓两头、放中间”的总体布局策略,力求以推动创新链、产业链空间协同配置引导全国经济空间发展的整体优化。

关键词：创新链产业链空间协同配置区域经济布局

维普期刊数据库博看期刊

Industrial Spatial Agglomeration Using Distance-based Approach in Beijing, China

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Chinese Geographical Science 2015年第6期25卷 698-712页

作者： LI Jiaming zhang wenzhong YU Jianhui CHEN Hongxia Institute of Geographic Sciences and Natural Resources Research Chinese Academy of Sciences University of Chinese Academy of Sciences Key Laboratory of Regional Sustainable Development Modeling Institute of Geographical Sciences and Natural Resources Research Chinese Academy of Sciences School of Government Central University of Finance and Economics

To study the difference of industrial location among different industries, this article is to test the spatial agglomeration across industries and firm sizes at the city level. Our research bases on a unique plant-level data set of Beijing and employs a distance-based approach, which considers space as continuous. Unlike previous studies, we set two sets of references for service and manufacturing industries respectively to adapt to the investigation in the intra-urban area. Comparing among eight types of industries and different firm sizes, we find that: 1) producer service, high-tech industries and labor-intensive manufacturing industries are more likely to cluster, whereas personal service and capital-intensive industries tend to be randomly dispersed in Beijing; 2) the spillover of the co-location of firms is more important to knowledge-intensive industries and has more significant impact on their allocation than business-oriented services in the intra-urban area; 3) the spatial agglomeration of service industries are driven by larger establishments, whereas manufacturing industries are mixed.

关键词：高新技术产业空间集聚北京市距离法生产性服务业劳动密集型城市区域企业规模

我国外语类线上一流本科课程建设:成就、困境与策略

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山东外语教学 2024年第1期45卷 44-53页

作者：王中祥张文忠江西科技师范大学外国语学院江西南昌330038 南开大学外国语学院天津300071

一流本科课程建设是构建我国高水平人才培养体系的重要举措,对推动新时期我国高等教育的内涵式发展具有关键作用。在回顾我国外语类线上一流本科课程发展历程的基础上,本研究主要考察了其建设现状、成就及存在的困境,并结合“金课”标... 详细信息

一流本科课程建设是构建我国高水平人才培养体系的重要举措,对推动新时期我国高等教育的内涵式发展具有关键作用。在回顾我国外语类线上一流本科课程发展历程的基础上,本研究主要考察了其建设现状、成就及存在的困境,并结合“金课”标准和国际慕课发展经验提出相应策略和建议。这不仅有助于提升外语类线上一流本科课程建设的系统性和科学性,也能持续深化新时期高校外语教学改革与创新。

关键词：一流本科课程课程建设外语课程在线课程

利用CRISPR/Cas9技术编辑MODD增强水稻休眠性

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中国农业科学 2024年第2期57卷 227-235页

作者：郭乃辉张文忠圣忠华胡培松沈阳农业大学水稻研究所中国水稻研究所/国家水稻改良中心

【目的】休眠是水稻重要的农艺性状。适当的休眠可以抑制水稻的穗发芽现象，是确保产量和品质的关键因素。然而，水稻休眠调控的基因及其调控网络仍需进一步研究。已知基因MODD编码未知功能的蛋白，负向调控水稻脱落酸信号和抗旱性，但... 详细信息

【目的】休眠是水稻重要的农艺性状。适当的休眠可以抑制水稻的穗发芽现象，是确保产量和品质的关键因素。然而，水稻休眠调控的基因及其调控网络仍需进一步研究。已知基因MODD编码未知功能的蛋白，负向调控水稻脱落酸信号和抗旱性，但其调控水稻休眠的功能未知。研究MODD在调控水稻休眠中的功能，有助于完善水稻休眠调控网络，同时为抗穗发芽遗传育种提供新的理论基础和种质资源。【方法】根据RGAP数据库公布的基因序列，构建MODD的CRISPR-Cas9敲除载体，通过农杆菌介导的遗传转化方法转化中花11(ZH11)愈伤组织，从而获得水稻转基因植株；利用PCR扩增、测序技术及qRT-PCR技术筛选并鉴定MODD敲除纯合系；根据2个突变系（KO-1和KO-2）的CDS得到突变系的氨基酸序列，然后，用DNAMAN对比ZH11和2个突变系（KO-1和KO-2）的蛋白序列；利用Linux系统筛选出MODD在水稻中的同源基因；取开花后35 d的种子，调查ZH11和敲除系的发芽率；利用酵母单杂和LUC试验验证MODD的上游基因。【结果】查找到水稻中有6个MODD的同源基因，分别为LOC＿Os07g41160、LOC＿Os03g30570、LOC＿Os03g53630、LOC＿Os04g35430、LOC＿Os03g17050和LOC＿Os06g01170；成功构建了敲除载体，并转入ZH11中，获得2个纯合突变系（KO-1和KO-2）;qRT-PCR结果表明，2个突变系（KO-1和KO-2）的MODD表达量显著降低；蛋白序列分析表明，KO-1和KO-2的移码突变造成了蛋白翻译的提前终止；发芽率结果显示，2个突变系（KO-1和KO-2）的发芽率在吸水第3天比ZH11分别显著降低了15%和15%；之后差异逐渐扩大，在第6天差异达到最大，比ZH11分别显著降低35%和35%;2个突变系（KO-1和KO-2）的穗发芽现象显著低于ZH11；酵母单杂试验结果表明，在酵母中，ABI5可以结合MODD的启动子区域，并且进一步把结合范围缩小至300 bp以内；LUC结果显示，加入ABI5的荧光值是单独加NONE空载荧光值的2.6倍，说明ABI5可以激活MODD的表达。【结论】敲除MODD可以增加种子的休眠，MODD可能通过ABA信号途径调控种子休眠。

关键词：水稻休眠 ABI5 MODD