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Journal of Building Construction and Planning Research 2017年第1期5卷 14-29页

作者： Mengjie Zhang wenwei miao Yingpin Yang Chong Peng Yaping Huang School of Architecture and Urban Planning Huazhong University of Science and Technology Wuhan China Institute of Remote Sensing and Digital Earth Chinese Academy of Sciences Beijing China

Based on the night light data, urban area data, and economic data of Wuhan Urban Agglomeration from 2009 to 2015, we use spatial correlation dimension, spatial self-correlation analysis and weighted standard deviation ellipse to identify the general characteristics and dynamic evolution characteristics of urban spatial pattern and economic disparity pattern. The research results prove that: between 2009 and 2013, Wuhan Urban Agglomeration expanded gradually from northwest to southeast and presented the dynamic evolution features of “along the river and the road”. The spatial structure is obvious, forming the pattern of “core-periphery”. The development of Wuhan Urban Agglomeration has obvious imbalance in economic geography space, presenting the development tendency of “One prominent, stronger in the west and weaker in the east”. The contract within Wuhan Urban Agglomeration is gradually decreased. Wuhan city and its surrounding areas have stronger economic growth strength as well as the cities along The Yangtze River. However, the relative development rate of Wuhan city area is still far higher than other cities and counties.

关键词： Night Light Data Urban Spatial Pattern Economic Disparity Pattern Wuhan Urban Agglomeration

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长江经济带城市健康发展评价及优化策略

城市与区域规划研究 2018年第4期10卷 83-99页

作者：缪雯纬林樱子彭翀华中科技大学建筑与城市规划学院

城市健康可持续发展与人民健康生活息息相关,因此,健康城市建设越来越受到政府和人民关注。在目前研究中,健康城市评估主要是针对单个城市展开,区域城市群层面的健康发展状况评价较少,因此本文目的是对长江经济带城市健康发展进行综合评... 详细信息

城市健康可持续发展与人民健康生活息息相关,因此,健康城市建设越来越受到政府和人民关注。在目前研究中,健康城市评估主要是针对单个城市展开,区域城市群层面的健康发展状况评价较少,因此本文目的是对长江经济带城市健康发展进行综合评价,并分析其健康发展水平差异的空间分布格局规律。本文选取2015年长江经济带84个地市,从健康经济、健康社会、健康文化、健康环境、健康人群和健康服务六个方面,构建健康城市发展综合评价指标体系。运用熵值法对长江经济带城市健康发展进行综合评价,利用聚类分析方法将长江经济带城市健康发展结果分为Ⅰ、Ⅱ、Ⅲ、Ⅳ、Ⅴ类;借助探索性空间结构分析对长江经济带城市健康发展水平差异进行空间分布格局研究。结果显示:①总体水平特征:区域间城市健康发展不平衡,大城市和发达地区引领健康发展;②领域差异特征:长江经济带三大城市群健康发展短板各异;③空间关联特征:长三角与长江上游分别形成健康高值连绵带动区和低值效应区。最后从领域优化、分区指引和发展协同三方面提出促进城市与区域健康发展的对策建议。

关键词：健康城市评价长江经济带熵值法探索性空间结构分析方法优化策略

Quantitative reconstruction of salinity and precipitation changes in Central Asia over the past 3200 years using diatom and pollen records of lacustrine sediment in Aibi Lake of SW Junggar Basin

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Journal of Earth Science 2025年

作者： Long Pan Guoqiang Li Xiaoyan Wang Ming Jin Xinrong He Luo Qin Zhong Wang wenwei Zhao Chunzhu Chen Yuanlu Liu Jin Yang Lele Shu Key Laboratory of Western China's Environmental Systems (Ministry of Education)， College of Earth and Environmental Sciences， Lanzhou University College of Earth Sciences， Chengdu University of Technology School of Geographic Science， Nantong University Key Laboratory of Land Surface Process and Climate Change in Cold and Arid Regions， Northwest Institute of Eco-Environment and Resources， Chinese Academy of Sciences

The response of lake environments in arid Central Asia to climate change during the Late Holocene over the centennial to millennial timescales remains contentious. The reason that primarily paleoenvironmental proxies interpreting diverse and the scarcity of accurate quantitative reconstruction records. In this study， we employed diatoms and pollen records from lacustrine sediment in the Aibi Lake of SW Junggar Basin to quantitatively reconstruct salinity and watershed precipitation amounts while exploring the associated forcing mechanism. The results indicate that Aibi Lake salinity varied between 2 g/L and 47 g/L during the Late Holocene period， indicating a generally brackish environment， and corresponding to prevailing Tryblionella granulata diatom in the lake basin. Westerly-dominated annual precipitation varied between 250 mm and 320 mm during the Late Holocene period in the basin， exhibiting a generally semi-arid environment and prevailing desert steppe vegetation. The Aibi Lake has a low salinity of average value of ～15 g/L. It exhibits elevated precipitation (average value of ～280 mm) during the periods of the Roman Warm Period (2900-1990 cal yr BP)， Dark Age Cold Period (1570-1140 cal yr BP)， and Little Ice Age (590-120 cal yr BP). The reconstructed precipitation and salinity exhibit a periodicity of ～200 years， which is consistent with the cycle of phase changes of the North Atlantic Oscillation (NAO) and Total Solar Irradiance (TSI). This correlation suggests that variations in NOA and TSI significantly influence the precipitation and salinity changes in Central Asia over centennial to millennial timescales.

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原发性肿块样宫颈尖锐湿疣MRI表现1例

中华放射学杂志 2025年第1期59卷 99-100页

作者：顾海磊唐文伟高何南京医科大学附属妇产医院南京市妇幼保健院放射科南京210004 南京医科大学附属妇产医院南京市妇幼保健院病理科南京210004

该文报道1例原发性肿块样宫颈尖锐湿疣临床及MRI表现。患者女,50岁,以负重及活动后阴道流鲜血为主要临床表现。MRI表现为宫颈外口外生性不规则肿物,边缘光整,穹隆部呈受压改变,T 1WI呈等信号,T 2WI呈略高信号,扩散加权成像呈稍高信号,... 详细信息

该文报道1例原发性肿块样宫颈尖锐湿疣临床及MRI表现。患者女,50岁,以负重及活动后阴道流鲜血为主要临床表现。MRI表现为宫颈外口外生性不规则肿物,边缘光整,穹隆部呈受压改变,T 1WI呈等信号,T 2WI呈略高信号,扩散加权成像呈稍高信号,表观扩散系数为1.1×10-3 mm 2/s,增强扫描病灶强化不均匀,强化程度低于正常宫颈组织,动态增强时间信号强度曲线呈平台型,晚期轻度流出。肿物切除术后病理结果证实为宫颈表面巨大尖锐湿疣,随访30个月无复发。

关键词：宫颈肿瘤尖锐湿疣磁共振成像

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千米深井松软厚煤层沿空煤巷卸压控制技术

煤矿安全 2025年第1期56卷 137-145页

作者：马文伟梁文勖中煤科工集团沈阳研究院有限公司辽宁抚顺113122 煤矿安全技术国家重点实验室辽宁抚顺113122

为了解决千米深井厚煤层巷道变形破坏的控制难题,以深部松散软弱厚煤层沿空煤巷为对象,基于现场调研实测获得的煤巷围岩力学强度及围岩结构分布状况,揭示了深井高应力煤巷变形破坏特征;通过构建的千米深井松软沿空煤巷围岩三维数值模型... 详细信息

为了解决千米深井厚煤层巷道变形破坏的控制难题,以深部松散软弱厚煤层沿空煤巷为对象,基于现场调研实测获得的煤巷围岩力学强度及围岩结构分布状况,揭示了深井高应力煤巷变形破坏特征;通过构建的千米深井松软沿空煤巷围岩三维数值模型,分析了卸压孔长度、间距对煤巷围岩卸压控制的效果,获得了合理的卸压孔间距为1.0 m,卸压孔深度10.0 m,并提出了沿空煤巷围岩强力支护-钻孔卸压等关键控制技术参数。结果表明:通过围岩位移、锚索受力等组合矿压观测方法可以验证卸压控制技术及参数的合理性。

关键词：千米深井沿空巷道卸压控制松软厚煤层失稳特征巷道支护

城市轨道交通牵引供电系统双向变流装置设计方案及综合效益

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城市轨道交通研究 2025年第1期28卷 267-272页

作者：康崇皓周文卫胡剑强常州地铁集团有限公司常州213001 中铁第四勘察设计院集团有限公司武汉430063

[目的]目前双向变流装置在我国城市轨道交通(以下简称“城轨”)牵引供电系统中处于推广阶段,存在多种配置方案且有实际应用,需综合评估各方案优劣,统一技术标准,同时进行全生命周期效益分析,为工程应用提供决策依据。[方法]基于双向变... 详细信息

[目的]目前双向变流装置在我国城市轨道交通(以下简称“城轨”)牵引供电系统中处于推广阶段,存在多种配置方案且有实际应用,需综合评估各方案优劣,统一技术标准,同时进行全生命周期效益分析,为工程应用提供决策依据。[方法]基于双向变流装置在设备功能、直流牵引供电能力、综合节能、电能质量等方面的优势,从用房面积、设备投资、电能质量、经济效益及可靠性等方面,对我国现有的5种双向变流装置配置方案进行技术经济比选,给出推荐配置方案。以某城轨正线为例,分析了双向变流装置在节能、无功补偿、杂散电流防护等方面的全生命周期综合效益。[结果及结论]经综合比选,双向变流装置推荐采用1套二极管整流机组+1套双向变流机组方案,其全生命周期成本最低。预计该城轨正线20年全生命周期总成本减少256.8万元/km。

关键词：城市轨道交通牵引供电系统双向变流装置设计方案综合效益

制造商过度自信下考虑权力结构的双渠道绿色供应链动态决策

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计算机集成制造系统 2025年第2期31卷 661-673页

作者：贡文伟夏萌丁凡孙立成江苏大学管理学院江苏镇江212013

为探究制造商过度自信行为特征和权力结构差异对双渠道绿色供应链成员动态决策的影响,构建制造商主导、零售商主导和双方权力对等3种情况下的微分博弈模型,求解并对比分析各情形下的供应链成员均衡决策和利润。研究表明,当市场环境较差... 详细信息

为探究制造商过度自信行为特征和权力结构差异对双渠道绿色供应链成员动态决策的影响,构建制造商主导、零售商主导和双方权力对等3种情况下的微分博弈模型,求解并对比分析各情形下的供应链成员均衡决策和利润。研究表明,当市场环境较差时,产品绿色度、销售价格、制造商利润及供应链总利润会随制造商过度自信程度的提高而增加,零售商利润则随之下降,而当市场环境较好时,上述情况均相反;制造商占主导地位会促使自身做出更大的绿色研发努力;供应链成员利润均在自身占主导地位时最高,而供应链总利润在双方权力对等时最高,在零售商主导时最低;制造商的过度自信对自身利润和供应链总利润的影响程度与渠道成员间的权力大小有关。

关键词：过度自信权力结构双渠道绿色供应链微分博弈

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基于扩散模型自动分割68 Ga-前列腺特异性膜抗原-11 PET/MRI所示前列腺癌

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中国医学影像技术 2025年第2期41卷 326-330页

作者：洪文威李如帅孟庆乐徐磊浙江大学医学院附属第四医院医学工程科浙江义乌322000 南京医科大学附属南京医院(南京市第一医院)核医学科江苏南京210006

目的观察基于扩散模型自动分割^(68)Ga-前列腺特异性膜抗原(PSMA)-11 PET/MRI所示前列腺癌(PCa)的效果。方法对含125例PCa患者的^(68)Ga-PSMA-11 PET/MRI数据集进行预处理;设计基于Faster-RCNN及空间和通道重建卷积(SCConv)Diffusion级联的分割网络,其中的一级网络通过Faster-RCNN对前列腺和精囊腺进行粗定位,二级网络以基于扩散模型的SCConv Diffusion网络分割PCa;观察上述模型用于分割^(68)Ga-PSMA-11 PET/MRI中的PCa的效果。结果Faster-RCNN+SCConv Diffusion模型分割^(68)Ga-PSMA-11 PET/MRI中的PCa的戴斯相似系数(DSC)、交并比(IoU)及95%豪斯多夫距离(HD)分别为0.76、0.63及20.02 mm,其性能优于nnU-Net(分别为0.73、0.62及21.20 mm)及Faster-RCNN+nnU-Net(分别为0.75、0.62及20.70 mm)模型,且其分割单发及多发PCa均更为精准,少见误分割非瘤组织。结论基于扩散模型的Faster-RCNN+SCConv Diffusion级联网络可完整、准确地分割^(68)Ga-PSMA-11 PET/MRI所示PCa。

关键词：前列腺肿瘤正电子发射断层显像磁共振成像深度学习

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A deep learning “ticket” for single-molecule analysis of protein stoichiometry

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Science China Chemistry 2019年第10期62卷 1269-1270页

作者： wenwei Wu Zeyu Xiao Department of Pharmacology and Chemical Biology & Clinical and Fundamental Research Center Ren Ji HospitalShanghai Jiao Tong University School of Medicine

Proteins are the fundamental of life activities,and they participate in a myriad of physiological processes including signal transduction,ion transport and immune ***,the aggregation states of proteins are dynamically changed in these physiological processes,such as undergoing ligand-induced monomer to dimer,or dimer to *** such,stoichiometric analysis of protein oligomerization state is highly important for elucidating structure-function relationship of proteins,pathological regulation mechanism and drug development[1].Singlemolecule fluorescence imaging using photobleaching counting represents a cutting-edge technology for quantitatively characterizing protein *** technology is principled by the conception that fluorophore-tagged protein is photobleached in a step-like pattern;and the total number of photobleaching steps can reflect the unit number in the oligomeric proteins(i.e.,protein stoichiometry)[2].Nevertheless,accurate characterization of protein stoichiometry by single-molecule photobleaching faces great challenges,mainly due to the weak signal of single-molecule fluorophore,the obscureness by background noise signals,and the interference of photoblinking.

关键词： analysis linking steps

Timely Data Delivery for Energy-Harvesting IoT Devices

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Chinese Journal of Electronics 2022年第2期31卷 322-336页

作者： LU wenwei GONG Siliang ZHU Yihua School of Computer Science and Technology Zhejiang University of Technology College of Mathematics and Computer Science Zhejiang A&F University

The devices in the Internet of things(Io T) gain capability of sustainable operation when they harvest energy from ambient sources. Fluctuation in the harvested energy may cause the energy-harvesting IoT devices to suffer from frequent energy shortage, which may bring in intolerable packet delay or packet discarding. It is important to design a low-delay packet delivery scheme that adapts to variation in the harvested *** this paper, we present the timely data delivery(TDD)scheme for the IoT devices. Using Markov chain, we develop a probability model for the TDD scheme, which leads to the expected number of packets delivered in an operation cycle, the expected numbers of packets waiting in the data buffer in an operation cycle and an energy-harvesting cycle, and the expected packet delay. Additionally, we formulate the optimization problem that minimizes the packet delay in the TDD scheme, and the solution to the optimization problem yields the optimal parameters for the IoT devices to determine when to harvest energy and when to deliver data under the TDD *** simulation results show that the proposed TDD scheme outperforms the existing schemes in terms of packet delay.

关键词： Internet of things energy-harvesting IoT devices expected packet delay Markov processes Markov chain probability frequent energy shortage low-delay packet delivery scheme operation cycle delays harvested energy intolerable packet delay optimisation energy-harvesting cycle telecommunication power management energy harvesting timely data delivery scheme TDD scheme packet discarding probability model Internet of Things