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湖泊细粒沉积体系中介壳岩的成因、分布和石油地质意义-以松辽盆地为例（英文）

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湖泊细粒沉积体系中介壳岩的成因、分布和石油地质意义-以松辽盆...

超微血管成像与超声造影检查对浅表淋巴结疾病的诊断效能

第十五届全国古地理学及沉积学学术会议

作者： Shuxin Pan Sujuan Liang Ma Long Caiyan liu huaqing liu Research Institute of Petroleum Exploration ＆ Development Northwest Petrochina

The Upper Cretaceous Qingshankou Formation（K2 qn） and Nenjiang Formation（K2 n） in the Songliao Basin（SLB）, China, contain discrete ostracodites. The ostracodites range in thickness from 5 to 380 cm. Based on integrated analysis of seismic, drilling, core and logging data, the sedimentary characteristics, distribution patterns and hydrocarbon implicationsof the ostracoditeshave been studied in this article. Compared with mudstone and sandstone in lacustrine settings, ostracod-bearingbedshavedistinctive characteristics in terms of seismic response and logging features. Three types of depositional pattern of ostracoditesare recognized in different facies: mixed ostracodites in the delta front, sheeted ostracod deposits and dotted ostracod deposits in shallow or semi-deep lacustrine settings. In plane view, ostracoditesmainly occur in the Daqing area, the Longhupao–Honggang terraces and the Heidimiao depression, and which are relatively less developed in the east of the SLB. Shallow and semi-deep lacustrine settings were favorable environments for the survival of ostracods. In the stratigraphic succession, ostracoditesmainly occur in the upper K2 qn1, K2 qn2, lower K2 qn3 and K2 n1 units. High-frequency sequence cycles controlled ostracod reproduction and death, and mass mortalities of ostracods often occurred during periods in which the lake base level fell, leading to water shallowing, increasing salinity and sand intrusion into the shore-shallow *** mortality was not associated with expansion of the lake area, marine transgression or volcanic eruptions. The ostracoditeswere widely formed in shallow and semi-deep lacustrine settings in the SLB. Tight oil/gas reservoirscan be developed in thick ostracodites. In addition, areas containing ostracodcan be regarded as sweet spots for mud or shale oil/gas exploration, inasmuch as extensive ostracod can improve the content of brittle minerals in mudstone.

关键词： ostracodite Songliao Basin seismic response and logging features sedimentary characteristics hydrocarbon implications

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中国民康医学 2022年第17期34卷 117-119,123页

作者：刘华青王熠辰郑州颐和医院国际健康管理中心河南郑州450047 河南省人民医院甲状腺外科河南郑州450003

目的:探讨超微血管成像(SMI)与超声造影检查对浅表淋巴结疾病的诊断效能。方法:选取2019年5月至2020年5月河南省人民医院收治的100例浅表淋巴结肿大患者为研究对象,均进行SMI、超声造影检查,以病理活检结果为金标准,比较两种检查方法对... 详细信息

目的:探讨超微血管成像(SMI)与超声造影检查对浅表淋巴结疾病的诊断效能。方法:选取2019年5月至2020年5月河南省人民医院收治的100例浅表淋巴结肿大患者为研究对象,均进行SMI、超声造影检查,以病理活检结果为金标准,比较两种检查方法对浅表淋巴结疾病的检出情况和诊断效能。结果:病理活检结果显示,100例患者共123枚浅表淋巴结,其中,反应增生性淋巴结21枚,炎性淋巴结15枚,淋巴瘤48枚,转移性淋巴结39枚;两种检查方法对浅表淋巴结疾病的检出率比较,差异无统计学意义(P>0.05);两种检查方法诊断恶性浅表淋巴结疾病的灵敏度、特异度、准确度、阴性预测值、阳性预测值、漏诊率和误诊率比较,差异均无统计学意义(P>0.05)。结论:SMI与超声造影检查在浅表淋巴结疾病中的诊断效能相当,临床应根据患者的实际情况选择合适的检查方法。

关键词：超微血管成像超声造影浅表淋巴结诊断效能

Partial Controllability of Discrete-Time Multi-Agent Systems with A Leader and Time-Delay

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Partial Controllability of Discrete-Time Multi-Agent Systems...

The control method for the lattice hydrodynamic model

第37届中国控制会议

作者： Bo liu huaqing liu Lu Li Fangcui Jiang Hong Shi School of College of Science North China University of Technology School of Mathematics and Statistics Shandong University School of Department of Mathematics and Physics Beijing Institute of Petrochemical Technology

Generally speaking, the complete controllability of multi-agent systems refers to transferring the remaining agents of such system from any arbitrary initial state to any final state by controlling dynamics of a small amount of agents under exchanged information between each other, which makes the system reflect the effect of a whole, that is the complete controllability. Comparing with the complete controllability of multi-agent systems, in reality, it may not be necessary to actuate all agents to the desired configuration. This paper concentrates on the partial controllability problems of discrete-time multi-agent systems with a leader and time-delay on the fixed topology, gives the general definition of the partial controllability, establishes partial controllability criteria. Numerical example and simulations are proposed to illustrate the theoretical results.

关键词： Multi-agent systems complete controllability partial controllability

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The control method for the lattice hydrodynamic model

Thirty Years of Experience of Acute Flaccid Paralysis Surveillance for Polio — China, 1993–2022

中国力学大会-2015

作者： liu huaqing Yu Chenyan Ye Caihong Ge Hongxia 宁波大学海运学院浙江大学宁波理工学院基础部

Based on the lattice hydrodynamic model proposed by Nagatani,the stability analysis is made by using delayed-feedback control *** flow difference is added to the lattice model as control *** stability conditions are o...

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China CDC weekly 2024年第16期6卷 344-349页

作者： Hong Yang Ning Wen Chunxiang Fan Fuzhen Wang Yong Zhang Lei Cao Shuangli Zhu Lixin Hao Dongmei Yan Lei Wang Quanwei Song Miao Wang Yifan Song Chao Ma Zhijie An Lance ERodewald huaqing Wang Zundong Yin National Key Laboratory of Intelligent Tracking and Forecasting for Infectious Diseases(NITFID) BeijingChina National Immunization Program Chinese Center for Disease Control and PreventionBeijingChina Institute for Viral Disease Control and Prevention Chinese Center for Disease Control and PreventionBeijingChina

Introduction:Detecting poliovirus infections proves to be highly challenging due to their asymptomatic nature and infectious potential,highlighting the crucial importance of effective detection methods in the context of polio eradication *** many countries,including China,the primary approach for identifying polio outbreaks has been through acute flaccid paralysis(AFP)*** this study,we conducted an evaluation spanning three decades(1993–2022)to assess the effectiveness of AFP surveillance in ***:Data on all AFP cases identified since 1993 and national-level AFP surveillance system quality indicators aligned with the World Health Organization(WHO)standards were collected for *** quality indicators assess surveillance sensitivity,completeness,timeliness of detection notification,case investigation,and laboratory *** sensitivity is determined by the non-polio AFP(NPAFP)detection rate among children under 15 years of ***:Between 1993 and 2022,a total of 150,779 AFP cases were identified and *** this pool,surveillance identified 95 cases of wild poliovirus(WPV)and 24 cases due to vaccinederived *** 1995 onwards,the detection rate of NPAFP cases consistently adhered to the WHO and national standards of≥1 case per 100,000,falling between 1.38 and *** in 1997,all timeliness indicators consistently achieved the criteria of 80%,apart from the consistency in meeting standards set for the rate of positive specimens sent to the national ***:AFP surveillance has been instrumental in China’s accomplishment of maintaining a polio-free *** ongoing adherence to key performance indicators,ensuring sensitivity and prompt specimen collection,demonstrates that AFP surveillance is proficient in detecting poliovirus in *** we move into the post-eradication phase,AFP surveillance remains crucial for the sustained absence of polioviruses in the long term.

关键词： sustained prompt surveillance

加筋填芯预应力高强混凝土管桩-承台节点拉弯受力性能分析

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工业建筑 2022年第6期52卷 12-18页

作者：刘华清安增军刘佳龙李媛媛蔡建国中国电力科学研究院有限公司北京100192 国网江苏省电力有限公司经济技术研究院南京210008 国网江苏电力设计咨询有限公司南京210008 东南大学国家预应力工程技术研究中心南京211189

预应力高强混凝土(PHC)管桩-承台连接节点处于复杂受力环境,其受力机理亟待深入研究。基于ABAQUS建立不截桩加筋填芯混凝土桩-承台节点模型,对其在拉弯联合加载工况下的受力机理进行研究,验证数值模拟过程的合理性,并考察了管桩嵌入深... 详细信息

预应力高强混凝土(PHC)管桩-承台连接节点处于复杂受力环境,其受力机理亟待深入研究。基于ABAQUS建立不截桩加筋填芯混凝土桩-承台节点模型,对其在拉弯联合加载工况下的受力机理进行研究,验证数值模拟过程的合理性,并考察了管桩嵌入深度和承台高度对节点各部件应力分布、混凝土损伤及荷载-位移曲线的影响。研究结果表明:采用有限元数值模拟得到的加筋填芯桩-承台节点的荷载-位移曲线、管桩桩身和承台的损伤与试验结果吻合;随着管桩嵌入深度和承台高度的增加,节点的初始刚度和承载力显著提高;当管桩嵌入深度较小时,节点的刚度下降主要是由预应力筋、锚筋的屈服和混凝土部件的损伤引起的;当管桩嵌入深度较大或承台高度较小时,节点整体刚度的下降是由混凝土部件的损伤引起的。

关键词： PHC管桩桩-承台节点加筋填芯有限元分析参数分析

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“累积威慑”与埃及和以色列关系的演变

阿拉伯世界研究 2020年第4期 139-160,160页

作者：刘华清武汉大学中国边界与海洋研究院武汉430072

“累积威慑”是多隆·阿尔默格、托马斯·瑞德等学者基于以色列与埃及、叙利亚等阿拉伯国家关系的历史实践提出的理论。该理论认为,“对敌人每次挑战均给予回应”和“通过不断胜利塑造实力强大的形象”是影响“累积威慑”成功的条件。... 详细信息

“累积威慑”是多隆·阿尔默格、托马斯·瑞德等学者基于以色列与埃及、叙利亚等阿拉伯国家关系的历史实践提出的理论。该理论认为,“对敌人每次挑战均给予回应”和“通过不断胜利塑造实力强大的形象”是影响“累积威慑”成功的条件。但它没有充分呈现出“累积威慑”所蕴含的动态性、过程性特征。鉴于此,本文引入“学习机制”予以修正。就“累积威慑”的机理而言,埃及、叙利亚等国在战争互动中,不断更新对以色列国家实力与威慑决心的认知。1948年至20世纪80年代埃以关系的演变表明,当埃及、叙利亚等国意识到以色列存在实力优势且威慑可信度高时,“累积威慑”会发挥效用;而当这两个条件不同时具备时,“累积威慑”则难以发挥效用。

关键词： “累积威慑” 埃以关系以色列中东战争

微生物电解池强化垂直潜流人工湿地硝化反硝化脱氮研究

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环境工程 2023年第6期41卷 32-37,70页

作者：张杰张建曹晓强陈信含刘华清山东科技大学安全与环境工程学院山东青岛266590 山东农业大学资源与环境学院山东泰安271018 山东科技大学黄河三角洲地表过程与生态完整性研究院山东青岛266590

为探究微生物电解池对人工湿地硝化反硝化脱氮的强化效果,构建了闭路运行(VFCW-MEC)与开路运行(VFCW-C)的垂直潜流人工湿地-微生物电解池系统,研究了不同外加电压(0,0.2,0.4 V)下耦合湿地系统的脱氮效能差异及N_(2)O排放特征。结果表明... 详细信息

为探究微生物电解池对人工湿地硝化反硝化脱氮的强化效果,构建了闭路运行(VFCW-MEC)与开路运行(VFCW-C)的垂直潜流人工湿地-微生物电解池系统,研究了不同外加电压(0,0.2,0.4 V)下耦合湿地系统的脱氮效能差异及N_(2)O排放特征。结果表明:施加外加电压的VFCW-MEC对NH_(4)-N和TN的去除效率均高于VFCW-C,外加电压为0,0.2,0.4 V时,VFCW-MEC对NH^(+)_(4)-N的去除率分别为(61.66±0.30)%、(69.21±0.31)%和(74.82±0.27)%,TN去除率分别为(11.53±0.35)%、(20.06±0.59)%和(33.29±0.35)%,这些现象表明,外加电压有助于提升湿地系统对NH^(+)_(4)-N和TN的去除效率。通过解析VFCW-MEC系统阳极和阴极区域氮浓度变化规律,发现阳极和阴极分别加强了垂直潜流湿地的硝化和反硝化作用,微生物产氢和直接电子传递作用共同促进了阴极反硝化脱氮效率。值得注意的是,外加电压也增加了脱氮过程中N_(2)O的排放效率,不利于温室气体的减排。以上研究表明:微生物电解池在强化潜流人工湿地硝化反硝化脱氮方面具有良好潜力。

关键词：垂直潜流人工湿地微生物电解池外加电压硝化与反硝化 N_(2)O

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习近平关于党的建设重要思想研究综述

中国浦东干部学院学报 2023年第5期17卷 27-49页

作者：刘华清黄建国党史教研部湖南长沙410006

党的十八大以来,随着习近平关于党的建设重要思想的形成与发展,学术界对这一思想的学习与研究也迅速推进,目前正处于研究深化阶段。研究内容涉及习近平关于党的建设重要思想的形成发展、突出特点、历史地位、理论体系和实践要求,涵盖党... 详细信息

党的十八大以来,随着习近平关于党的建设重要思想的形成与发展,学术界对这一思想的学习与研究也迅速推进,目前正处于研究深化阶段。研究内容涉及习近平关于党的建设重要思想的形成发展、突出特点、历史地位、理论体系和实践要求,涵盖党的政治建设、思想建设、组织建设、作风建设、纪律建设、制度建设、反腐败斗争和党的自我革命等方方面面,形成了比较丰硕的研究成果。但现有研究仍存在一些局限,需要进一步深入和加强。

关键词：习近平关于党的建设重要思想中国共产党党的建设