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在数字经济时代大背景下,平台经济领域金融业务不断深化发展,极大地提升了金融对实体经济的支持力度。但是平台经济领域金融业务市场垄断、数据安全等问题凸显,给平台经济领域金融业务的有序发展带来了风险,也使监管面临新的挑战。面对平台经济领域金融业务快速发展中的不健康、不规范苗头和趋势,国家相关部门提出必须坚决纠正和治理。从监管侧出发,通过观察平台经济企业金融业务的演进过程和14家代表性平台企业的金融业务现状,分析平台经济企业金融业务的风险及监管痛点,提出运用监管科技等手段构建金融风险评价模型 ...
王德军, 代亚楠
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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
太空台风是极盖区内一种新发现的大尺度亮斑状极光结构,直观表征了地磁平静期的一种堪比磁暴的太阳风能量注入现象,这更新了人们对太阳风–磁层–电离层耦合过程的认识,如何从海量星载极光数据中准确髙效识别出太空台风事件具有重要的科学意义。采用深度学习的方法,通过六种网络模型的对比,最终基于迁移学习和EfficientNetB2网络提出了一种太空台风自动识别方法。在2005-2021年美国国防气象卫星(Defense Meteorological Satellite Program,DMSP)上搭载的紫外光谱成像仪(
夏 凯 +6 more
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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
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通过研究赤道平流层纬向风的准2年振荡(QBO)和浙江台风的关系,指出:浙江台风多发生在赤道平流层纬向风的东西风转向时期;在赤道平流层QBO为西风年时,浙江发生台风的总天数较多;在赤道平流层QBO的西风时段内发生台风的总个数和总天数都较多.在东风时段,每个台风的生命史较长.厄尔尼诺和拉尼娜使当年浙江台风的总天数偏少.厄尔尼诺年使浙江台风的生命史较长,而拉尼娜则相反.
TIANRong-xiang(田荣湘)
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中国东南沿海地区钻孔体应变对超强台风“利奇马” 的响应特征与机制
依据超强台风 “利奇马” 的强度和时空演变特征,本文采用经验模态分解等方法系统地分析并揭示了该台风对我国东南沿海地区钻孔体应变影响的全貌,并在此基础上对台风扰动的机制进行了初步探讨。结果表明:① 台风演变过程中漏斗状的长周期气压波动,是造成钻孔体应变大幅张性变化的物理成因,且体应变对台风低压系统具有即时的线弹性响应特征,其变化形态与气压漏斗高度相似,弹性变形的持续时间与气压波动的历时较一致;② 在周期为103 h时,−18.2 hPa的气压变幅便可在地下62 m深处产生高达−112.1×10−9的体应变,
Xiaolin Yang, Jinling Yang, Zigen Wei
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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
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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
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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
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Capturing semantic features to improve Chinese event detection
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
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