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Chinese Geographical Science 2018年第6期28卷 1048-1060页

作者： WANG Jiechen WU Jiayi ni jianhua CHEN Jie XI Changbai Department of Geographic Information Science Nanjing University Nanjing 210023 China Jiangsu Provincial Key Laboratory of Geographic Information Science and Technology Nanjing 210023 China Jiangsu Center for Collaborative Innovation in Geographical Information Resource Development and Application Nanjing 210023 China

With the increasing number of vehicles in large-and medium-sized cities challenges in urban traffic management, control, and road planning are being faced. Taxi GPS trajectory data is a novel data source that can be used to study the potential dynamic traffic characteristics of urban roads, and thus identify locations that show a notable lack of road planning. Considering that road traffic characteristics on their own are insufficient for a comprehensive understanding of urban traffic, we develop a road traffic characteristic time series clustering model to analyze the relationship between urban road traffic characteristics and road grade based on existing taxi trajectory data. We select the main urban area of Nanjing as our study area and use the taxi trajectory data of a single month for evaluating our method. The experiments show that the clustering model exhibit good performance and can be successfully used for road traffic characteristic classification. Moreover, we analyze the correlation between traffic characteristics and road grade to identify road segments with planning designs that do not match the actual traffic demands.

关键词：道路等级道路交通聚类模型特征时间特征和城市南京案例

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切片酸溶综合法测试硬化混凝土内部骨料方法

四川建材 2024年第3期50卷 9-10,17页

作者：倪建华上海城投水务(集团)有限公司上海201103

采用切片法及酸溶法测试硬化混凝土内部骨料含量及最大骨料粒径,结合两种方法对混凝土内部骨料情况进行分析。以某工程为例,详细介绍切片法及酸溶法的基本原理和实验步骤,结合工程实际对两种方法的侧重点和优劣进行分析。

关键词：混凝土骨料含量最大骨料粒径切片酸溶

The Cool World-Mogan Mountain

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China Today 1995年第11期44卷 21-22页

作者： ni jianhua TONG XIAOYUAN

ＴｈｅＣｏｏｌＷｏｒｌｄ－ＭｏｇａｎＭｏｕｎｔａｉｎＢｙＮＩＪＩＡＮＨＵＡ＆ＴＯＮＧＸＩＡＯＹＵＡＮＢａｍｂｏｏ，ｃｌｏｕｄｓ，ａｎｄｍｏｕｎｔａｉｎｓｐｒｉｎｇｓｏｆｆｅｒａｃｏｏｌ，ｇｒｅｅｎｅｓｃａｐｅ．ＮＯＭ... 详细信息

ＴｈｅＣｏｏｌＷｏｒｌｄ－ＭｏｇａｎＭｏｕｎｔａｉｎＢｙＮＩＪＩＡＮＨＵＡ＆ＴＯＮＧＸＩＡＯＹＵＡＮＢａｍｂｏｏ，ｃｌｏｕｄｓ，ａｎｄｍｏｕｎｔａｉｎｓｐｒｉｎｇｓｏｆｆｅｒａｃｏｏｌ，ｇｒｅｅｎｅｓｃａｐｅ．ＮＯＭＡＴＴＥＲｈｏｗｈｏｔｉｔｉｓ＂ｏ...

关键词： World The Cool World-Mogan Mountain

Progress of vegetation modelling and future research prospects

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Science China Earth Sciences 2024年

作者： Siqi LI Xu ZHANG Zhengyao LU Jian ni jianhua LU State Key Laboratory of Tibetan Plateau Earth System Resources and Environment (TPESRE) Institute of Tibetan Plateau ResearchChinese Academy of Sciences College of Resources and Environment University of Chinese Academy of Sciences British Antarctic Survey Department of Physical Geography and Ecosystem Science Lund University College of Life Sciences Zhejiang Normal University School of Atmospheric Sciences Sun Yat-sen University and Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai)

Terrestrial vegetation is a crucial component of the Earth system, and its changes not only represent one of the most distinct aspects of climate change but also exert significant feedback within the climate system by exchanging energy, moisture,and carbon dioxide. To quantitatively and mechanistically study climate-vegetation feedback, numerical vegetation models have been developed on the theory of ecophysiological constraints on plant functional types. The models eventually can simulate vegetation distribution and succession across different spatial and temporal scales, and associated terrestrial carbon cycle processes by categorizing vegetation into biomes according different plant functional types and their associated environmental factors. Here we review the developing history of vegetation models and provide recent advances and future directions. Before 21st century, static vegetation models, as developed statistical models, can only simulate equilibrated characteristics of vegetation distribution. In last several decades, Dynamic Global Vegetation Models(DGVMs) have been developed to simulate instantaneous responses of vegetation to climate change and associated dynamics, and can be coupled with Earth system models to investigate interactions among atmosphere, ocean, and land. DGVMs are also widely applied to investigate the dynamics accounting for changes in the geographic distribution patterns of land surface vegetation at different spatial and temporal scales and to assess the impacts of terrestrial carbon and water fluxes and land use changes. We suggest that future vegetation modeling could integrate with machine learning, and explore vegetation transient response and feedback as well as impacts of process hierarchies and human activities on climate and ecosystem.

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Farewell to“Super National Treatment”of Foreign Companies in China

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China's Foreign Trade 2010年第23期 20-22页

作者： Liu Huan,Wang jianhua,ni Yuanjin

The year of 2010 can be called the beginning of a new era for foreign invested enterprises operating in China. The past 30 years witnessed a period when China coddled foreign-

关键词：中国外国企业待遇国民外商投资企业市场交易

Aldh2 deficiency plays a dual role in lung tumorigenesis and tumor progression

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Genes & Diseases 2024年第3期11卷 144-147页

作者： Hongjia Zhang Xueqian Sun Zhanming Li Tingting Liu Fang Zhang Xinyu Meng Kaimi Li jianhua Xu Wei He Bo Jing Tong Wang Na ni Beibei Sun Feng Yao Yadi Wu Qi Wang Jing Du Eugene Y.Chin Binhua P.Zhou Ping Jiang Lishun Wang Jiong Deng Key Laboratory of Cell Differentiation and Apoptosis of Chinese Minister of Education Department of PathophysiologyShanghai Jiao Tong University School of MedicineShanghai 200025China Shanghai Key Laboratory for Tumor Microenvironment and Inflammation Shanghai Jiao Tong University School of MedicineShanghai200025China Department of Pathology Kunming Medical UniversityKunmingYunnan 650500China Medical Research Center Binzhou Medical University HospitalBinzhouShandong 256600China Center for Traditional Chinese Medicine and Gut Microbiota Minhang HospitalFudan UniversityShanghai 201100China Department of Radiation Oncology Yantai Affiliated Hospital of Binzhou Medical UniversityYantaiShandong 264100China Department of Pathology Molecular Pathology Research CenterPeking Union Medical College HospitalChinese Academy of Medical Sciences and Peking Union Medical CollegeBeijing 100730China Department of Laboratory Medicine Shanghai Pulmonary Hospital Affiliated Tongji UniversityShanghai 200080China Department of Physiology School of Basic Medical SciencesWeifang Medical UniversityWeifangShandong 261021China Department of Thoracic Surgery Shanghai Chest HospitalShanghai Jiao Tong UniversityShanghai 200030China Department of Molecular and Celular Biochemistry Markey Cancer CenterUniversity of Kentucky College of MedicineLexingtonKY40506USA Department of Respiratory Medicine The Second Affiliated HospitalDalian Medical UniversityDalianLiaoning116023China Peninsular Cancer Center Binzhou Medical UniversityYantaiShandong 264003China

Alcohol consumption contributes to global mortality and cancer development.Acetaldehyde(ACE),the oxidized metabolite of alcohol,is highly reactive towards DNA,resulting in DNA adducts.ACE can be detoxified to acetate ... 详细信息

关键词： mortality damage ALDH2

Screening current in ultra-high-field non-insulated superconducting magnets

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Science China Technological Sciences 2024年第7期67卷 2255-2273页

作者： ZHOU BenZhe WANG Lei CHEN Yong WANG QiuLiang WANG KangShuai ZHANG ZiLi LIU jianhua University of Chinese Academy of Sciences Institute of Electrical Engineering Chinese Academy of Sciences

Screening current is recognized as one of the critical elements limiting the progression of superconducting magnets toward achieving higher magnetic fields. Currently, most non-insulated(ni) superconducting magnets consider the magnet as insulated when addressing the issue of screening current. However, the bypass current in the ni magnet can modify the actual history of magnetization, so the screening current in ni magnet will be different from that in the insulated magnet. This paper presents a novel method based on the homogenized T-A formulation(T is the current vector potential, and A is the magnetic vector potential), which enables real-time simulation of both the bypass current behavior and the implications of screening current in ni superconducting magnets, even when these magnets contain tens of thousands of turns. We have developed a 32 T ni hybrid superconducting magnet and validated the effectiveness of this method through experiments. Employing this efficacious method,we conducted a comprehensive calculation of screening current in ni magnets, comparing them with insulated magnets in terms of screening current-induced stress(SCIS), screening current-induced field(SCIF), and losses. The results indicate that in the ni insert coils, the sequential excitation of background coils and insert coils induces a reverse screening current, resulting in slightly lower SCIF and SCIS compared to those in the insulated magnets. The method and results can contribute to the enhancement of magnet design and provide valuable insights for the development of ultra-high fields(UHF) ni magnets.

关键词： ultra-high-field superconducting magnet screening current REBCO coil ni coil stress loss

城市卒中急救网络动态可达性评价——以合肥市为例

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热带地理 2023年第12期43卷 2359-2368页

作者：倪建华陈杰袁哲沛陈子豪王杰安徽大学资源与环境工程学院合肥230601 安徽大学湿地生态保护与修复安徽省重点实验室合肥230601 大同大学建筑与测绘工程学院山西大同037009 合肥急救中心合肥230051

以合肥市为研究区,以交通、急救车、小区、卒中中心等多源动态数据为数据源,构建“居民小区―急救中心―急救车―卒中中心”服务一体化的卒中急救动态网络,通过百度地图API(Application ProgrammingInterface)估算1天中6个重要时刻的动... 详细信息

以合肥市为研究区,以交通、急救车、小区、卒中中心等多源动态数据为数据源,构建“居民小区―急救中心―急救车―卒中中心”服务一体化的卒中急救动态网络,通过百度地图API(Application ProgrammingInterface)估算1天中6个重要时刻的动态交通成本,并引入洛伦兹曲线与可达性基尼系数,系统分析和评价合肥市各小区卒中急救网络可达性动态变化规律和布局公平性变化情况。结果表明:1)合肥市全域可达性总体达到黄金“1h”服务标准,通行时间<30min以上的小区占小区总数的75%以上。但仍存在市中心急救资源过于聚集,与人口需求空间发展不均衡等问题。2)受时间变化影响,急救网络可达性呈较大波动,尤其是早晚高峰时刻的可达性受交通流影响显著。同时,合肥市急救车资源在白班与夜班的动态调整并未对全局网络可达性造成巨大影响。3)合肥市卒中急救网络布局公平性总体较差,其中T08:00和24:00分别为研究区内6个时刻中空间布局最不公平和最公平的2个时刻。因此,针对城市卒中急救可达性研究,既要考虑交通流、开放时间等动态因素的影响,又要统筹由多类设施构成的服务系统的整体可达问题,以提升城市设施可达性估算结果的精确性和有效性。

关键词：卒中急救网络动态可达性布局公平性合肥市

基于水凝胶的颜色动态可调的金属-介质-金属结构

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光学学报 2024年第9期44卷 284-292页

作者：倪海彬沈依周俊萍高绪之倪波常建华南京信息工程大学电子与信息工程学院江苏南京210044

提出一种基于聚乙烯醇水凝胶(PVA)的金属-介质-金属结构,用于实现颜色动态可调的结构色传感器。利用PVA薄膜对相对湿度的溶胀/收缩和折射率变化响应,并结合法布里-珀罗(F-P)共振效应,实现了F-P共振波长随相对湿度变化而发生偏移,结构色... 详细信息

提出一种基于聚乙烯醇水凝胶(PVA)的金属-介质-金属结构,用于实现颜色动态可调的结构色传感器。利用PVA薄膜对相对湿度的溶胀/收缩和折射率变化响应,并结合法布里-珀罗(F-P)共振效应,实现了F-P共振波长随相对湿度变化而发生偏移,结构色随环境相对湿度的改变而变化。实验结果表明,当环境相对湿度在3.0%~84.2%范围内变化时,结构的颜色会发生显著变化,在CIE 1931色度空间中显示为坐标顺时针旋转,平均相对湿度灵敏度可达0.998 nm/%。该传感器色彩显示丰富,颜色随相对湿度变化明显,灵敏度较高,响应迅速,在湿度传感结合色彩显示的环境检测研究领域具有良好的应用前景。

关键词：薄膜动态可调结构色金属-介质-金属结构法布里-珀罗共振湿度传感

Exploring Antarctic subglacial lakes with RECoverable Autonomous Sonde(RECAS):Design and first field tests

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Science China(Technological Sciences) 2024年第6期67卷 1866-1878页

作者： SUN YouHong PAVEL Talalay LI YuanSheng YU HaiBin WANG DongLiang LI GuoPing XU LiPing GONG Da WANG JiXin WANG jianhua WANG Ting ZHANG Nan WANG ZhiGang CHEN YanJi LIU YunChen LI YaZhou PENG ShiLin SHI JianGuang AN ChunLei GE Qun XU Jing ni XiaoKang CUI QiFeng JIANG Qiang MIKHAIL Sysoev Yang Yang WANG RuSheng WEI XianZhe WANG Yu ZHU TianXin DENG ZhiPeng ALEXEY Markov LI Bing FAN XiaoPeng Polar Research Center Jilin UniversityChangchun130000China School of Engineering and Technology China University of GeosciencesBeijing100083China Polar Research Institute of China Shanghai200120China College of Electronics and Information Hangzhou Dianzi UniversityHangzhou310018China Aerospace System Engineering Shanghai Shanghai201109China Nanjing Institute of Astronomical Optics&Technology National Astronomical ObservatoriesChinese Academy of SciencesNanjing210000China National Ocean Technology Center Tianjin300000China

Conducting scientific drilling on subglacial lakes and obtaining samples of subglacial lake water holds great significance in unraveling the formation and evolution of Antarctic subglacial lakes and early Earth's life forms.Despite various approaches to access and directly sample subglacial water and sediments,clean access and exploration of subglacial lakes remain challenging.To address this concern,Jilin University has developed the RECoverable Autonomous Sonde(RECAS)prototype.This technology enables sampling and in-situ detection of subglacial lake water while being isolated from the surface,thus minimizing the risk of pollution.Laboratory tests,including downward and upward drilling,long-running,remote-control,and cold-environment assessments,were conducted to validate the sonde's principle and functionality.During the 38th Chinese National Antarctic Research Expedition,CHINARE(2021–2022 season),the RECAS prototype underwent testing on the flank region of D?lk glacier,10 km from Zhongshan Station in Antarctica.Three boreholes with depths of 200.3,183.2,and 133.5 m were successfully drilled,with the refrozen meltwater sealing the boreholes during the process.Approximately 600 mL of melted water samples were collected from each hole.Throughout the drilling tests,all systems of the RECAS prototype performed within the expected ranges.

关键词： subglacial lake thermal drilling water sampling Antarctic autonomous sonde