Results 11 to 20 of about 3,220 (121)
Disasters, Volume 47, Issue 4, Page 995-1024, October 2023., 2023 A large‐scale exchange of information between media across national borders is frequently observed when a worldwide public health emergency occurs. This study investigated the global news citation network in the early stage of the COVID‐19 pandemic by analysing the network structure at different levels to identify important nodes and the relationships ...
Hua Guo +5 more
wiley +1 more source
Conservation Biology, Volume 37, Issue 4, August 2023., 2023 Abstract Internet trade is increasingly recognized as a dispersal pathway of non‐native plant species that is difficult to monitor. We sought to identify non‐native flora present in the Chinese online market, the largest e‐commerce market globally, and to decipher the effect of existing trade regulations, among other variables, on e‐trading patterns ...
Achyut Kumar Banerjee +8 more
wiley +1 more source
Functional Ecology, Volume 37, Issue 5, Page 1390-1406, May 2023., 2023 Read the free Plain Language Summary for this article on the Journal blog. Abstract Hydrothermal vent systems are important biodiversity hotspots that host a vast array of unique species and provide information on life's evolutionary adaptations to extreme environments.
Yiming V. Wang +9 more
wiley +1 more source
Policy &Internet, Volume 14, Issue 4, Page 845-874, December 2022., 2022 Abstract Over the past decade, China's central and municipal governments have consistently supported the development of social credit systems (SCSs). While research has highlighted the Chinese public's high approval and backing of SCSs, their engagement with these digital projects has not been fully explored. Based on 44 semi‐structured interviews, our
Haili Li, Genia Kostka
wiley +1 more source
Ultrasound in Obstetrics &Gynecology, Volume 60, Issue 5, Page 604-611, November 2022., 2022 ABSTRACT Objectives To evaluate and compare the diagnostic test accuracy (DTA) of three‐dimensional transvaginal ultrasound (3D‐TVS) and magnetic resonance imaging (MRI) for deep myometrial infiltration (DMI) and cervical invasion for preoperative staging and surgery planning in patients with endometrial cancer (EC).
G. Spagnol +9 more
wiley +1 more source
Capturing semantic features to improve Chinese event detection
CAAI Transactions on Intelligence Technology, Volume 7, Issue 2, Page 219-227, June 2022., 2022 Abstract Current Chinese event detection methods commonly use word embedding to capture semantic representation, but these methods find it difficult to capture the dependence relationship between the trigger words and other words in the same sentence.
Xiaobo Ma, Yongbin Liu, Chunping Ouyang
wiley +1 more source
Dizhen xuebao, 2018 本文主要利用时频分析法，基于2016年以来山东省泰安台重力仪及宽频带地震仪观测到的资料，对风暴天气和台风天气引起的微震现象进行研究. 结果表明：这两种天气过程产生的微震信号的频率基本分布在2—20 s之间，能量集中在5—7 s，15 s附近存在一个能量平稳加强的频段；风暴天气产生的微震信号具有由高频向低频演化的动态特征；两种天气条件下产生的微震信号均具有连续、高频及持续时间长的性质，反映了微震信号激发源的移动特征。 结合泰安台微震与风暴和台风天气的一一对应情况 ...
Mei Wang +5 more
doaj +1 more source
Study on the intensification and decaying of typhoons(台风强度研究综述)
Zhejiang Daxue xuebao. Lixue ban, 2015 台风强度变化，尤其是强度的突变（突然加强和衰亡）是台风预报的难点.然而，由于缺乏对强度变化机理的认识，没有足够高的分辨率对现有数值模式表达强度变化精细的物理过程，近年来台风强度业务预报进展缓慢.研究表明，台风强度主要受3类因子影响，即大尺度环境场（如风垂直切变(Vertical Wind Shear，VWS))、海洋强迫（包括海表温度和海洋热容量（Oceanic Heat Content，（)HC))以及台风自身的结构（含内核强对流变化(Density of core convection, DCC ...
ZHENGFeng(郑峰) +3 more
doaj +1 more source
Zhejiang Daxue xuebao. Lixue ban, 2002 文章在对风景区土地评估对象、内涵、土地利用及市场特点系统分析的基础上,认为风景区内地价评估的核心是开发项目用地价格评估,提出并论证了以景区自然、人文景观价值评价为基础,以项目用地投资收益为依据的风景区项目用地基准地价评估方法体系,并以天台山风景名胜区为例,建立了天台山风景名胜区开发项目用地基准地价体系,为天台山风景名胜区开发过程中引入股份制等新型机制奠定了基础..
OUYANGAn-jiao(欧阳安蛟) +1 more
doaj +1 more source
广东电网遭台风泰利侵袭的输配电设备受损分析及评估 [PDF]
全球能源互联网近年来致灾台风频率呈增加趋势，以2023年影响广东电网约百万用户的第4号台风“泰利”为例，分析广东电网遭台风侵袭受灾情况，建立输配电杆塔受损预测模型，识别关键特征变量与因素，为电网防灾减灾提供支持。首先，分析台风“泰利”气象特征，具有“台前对流活跃，风力强度大，降水范围广”等特点，对输配电设备均产生一定程度破坏。其次，利用随机森林、支持向量机、梯度决策树、神经网络等4种机器学习算法建立输配电杆塔受损预测模型，并对比部分算法针对不平衡样本优化前后模型表现。算例表明，随机森林优化后提升最大 ...
侯慧 +5 more
doaj +1 more source