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当前形势下网络流言控制的策略

新闻界 2009年第1期 55-56,78页

作者：贾国飚河南省政法管理干部学院郑州450002

本文首先分析了网络流言的特点及传播模式,在此基础上提出了网络流言的控制策略,最后,总结了现阶段网络流言控制的必要性。

关键词：网络流言流言控制转型社会

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基于复杂网络的新闻传播控制策略研究

新闻界 2009年第2期 35-36,91页

作者：贾国飚河南省政法管理干部学院郑州450002

本文引入物理学中的复杂网络概念,对不良信息网络传播行为进行了研究,从一个全新的角度探讨了新闻传播控制的策略,对制定具体的网络新闻传播政策和规则具有一定的借鉴意义。

关键词：新闻传播控制复杂网络随机控制目标控制局部控制

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媒体监督司法的合理性思考

新闻界 2010年第1期 78-79页

作者：代振华贾国飚河南省政法管理干部学院郑州450002

本文从媒体监督司法的公正立场、保密责任两方面提出了相关建议,并从制度角度探讨了如何有效约束媒体监督。

关键词：媒体监督司法独立保密约束

Deployment Dynamic Modeling and Driving Schemes for a Ring-Truss Deployable Antenna

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Chinese Journal of Mechanical Engineering 2024年第4期37卷 163-182页

作者： Baiyan He Lijun jia Kangkang Li Rui Nie Yesen Fan guobiao Wang Key Laboratory of Mechanism Theory and Equipment Design Ministry of EducationTianjin UniversityTianjin 300350China Xi’an Institute of Space Radio Technology Xi’an 710000China International Institute for Innovative Design and Intelligent Manufacturing of Tianjin University in Zhejiang Shaoxing 312077China

Mesh reflector antennas are widely used in space tasks owing to their light weight,high surface accuracy,and large folding *** are stowed during launch and then fully deployed in orbit to form a mesh reflector that transmits *** deployment is essential for duty services;therefore,accurate and efficient dynamic modeling and analysis of the deployment process are *** major challenge is depicting time-varying resistance of the cable network and capturing the cable-truss coupling behavior during the deployment *** paper proposes a general dynamic analysis methodology for cable-truss *** the topological diversity and geometric nonlinearity,the cable network's equilibrium equation is derived,and an explicit expression of the time-varying tension of the boundary cables,which provides the main resistance in truss deployment,is *** deployment dynamic model is established,which considers the coupling effect between the soft cables and deployable *** effects of the antenna's driving modes and parameters on the dynamic deployment performance were investigated.A scaled prototype was manufactured,and the deployment experiment was conducted to verify the accuracy of the proposed modeling *** proposed methodology is suitable for general cable antennas with arbitrary topologies and parameters,providing theoretical guidance for the dynamic performance evaluation of antenna driving schemes.

关键词： Cable antenna Deployment dynamics Performance evaluation Driving scheme Deployable structure

Cenomanian-Coniacian Sea-level Change and Dissolved Oxygen Fluctuations in Tethys-Himalaya: Evidences from Benthic Foraminifera of Gamba, Tibet

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Acta Geologica Sinica(English Edition) 2013年第2期87卷 501-516页

作者： jia jianzhong WAN Xiaoqiao CHEN Puli LI guobiao jiaNG Tian QU Haiying State Key Laboratory of Biogeology and Environmental Geology China University of Geosciences Petroleum Exploration and Exploitation Institute Sinopec Northwest Oil Field Company

Benthic foraminifera, preserved in the Late Cretaceous organic carbon-rich sediments of Gamba, southern Tibet, provide high-resolution proxies for sea-level changes and dissolved oxygen fluctuations of southeastern Tethys. The fossils were statistically analyzed and divided into three faunas of ＂Cenomanian fauna＂, ＂Turonian fauna＂, and ＂Coniacian fauna＂. A middle neritic-upper bathal environment （50-250m） was estimated considering the ratios of planktonic and epifaunal benthic foraminifera （P/（P＋E））, the morphological analysis according to the studies of recent foraminifera and the abundant distributions of depth-related species such as Alabamina creta, Laevidentalina sp., Praebulimina spp., Pleurostomella cf. naranjoensis, Pyrulina sp., Quinqueloculina spp., Haplophragmoides spp., etc. The result shows an almost parallel trend with the global transgressive and regressive cycles, but the former fluctuates more frequently at upper Cenomanian, which probably indicates tectonic instability of the continental margin. According to the benthic foraminiferal richness （BFN）, Shannon-Weiner diversity （H（s））, as well as benthic foraminiferal oxygen index （BFOI）, five periods of oxygen depleted conditions （dysoxic-anoxic） have been recognized. They correspond to the OAE2, the lower Turonian, the upper Turonian, the Turonian- Caniacian boundary event and the probably OAE3. In addition, the oxygen fluctuations in Gamba might be controlled directly by sea-level changes, while the paleoproductivity and oxygen conditions interacted with each other under oxygen deficiency environments.

关键词： benthic foraminifera bottom water oxygen sea-level Cretaceous Tethys-Himalaya

基于数字孪生的电力设备实时巡检监控方法研究

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电子设计工程 2025年第1期33卷 137-141页

作者：胡周达钟漍标王凯刘嘉郑海波广东省能源集团贵州有限公司贵州贵阳550081

为进一步增强对新能源发电站的安全巡检能力,保障新能源发电站的安全稳定运转,提出了一种基于数字孪生的电力设备实时巡检监控方法。该方法在数字孪生技术的基础上对电力设备安全巡检系统进行了建模和仿真,使用5G网络切片技术确保电力... 详细信息

为进一步增强对新能源发电站的安全巡检能力,保障新能源发电站的安全稳定运转,提出了一种基于数字孪生的电力设备实时巡检监控方法。该方法在数字孪生技术的基础上对电力设备安全巡检系统进行了建模和仿真,使用5G网络切片技术确保电力设备数据在巡检系统中的传输速度。同时,还设计了一种轻量级残差密集卷积神经网络,并将其与能谱图结合,实现了对电力设备故障的快速、精准识别。实验结果表明,所提出的实时巡检监控技术方案具有良好的综合性能,识别准确率可达98.32%,相比于仿真性能最优的SENet仍高出5.11%,从采集数据到回传识别结果所需的时间仅为2.1~3.3 s。

关键词：数字孪生电力设备巡检 5G网络切片深度学习

Cretaceous integrative stratigraphy,biotas,and paleogeographical evolution of the Qinghai-Tibetan Plateau and its surrounding areas

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Science China Earth Sciences 2024年第4期67卷 1229-1289页

作者： Dangpeng XI guobiao LI Shijun jiaNG Xin RAO Tian jiaNG Tianyang WANG Zuohuan QIN Yasu WANG jianzhong jia Muhammad KAMRAN Zhongye SHI Yuyang WU Panxi WANG Lixin SUN Qinggao ZENG Xiaoqiao WAN State Key Laboratory of Biogeology and Environmental Geology China University of GeosciencesBeijing 100083China College of Oceanography Hohai UniversityNanjing 213200China Key Laboratory of Palaeobiology and Petroleum Stratigraphy Nanjing Institute of Geology and PaleontologyChinese Academy of SciencesNanjing 210008China State Key Laboratory of Tibetan Plateau Earth System Environmentand Resources(TPESER)Institute of Tibetan Plateau ResearchChinese Academy of SciencesBeijing 100101China China National Offshore Oil Corporation Limited Beijing 100028China Shanghai Science and Technology Museum Shanghai 200120China Xizang Bureau of Geological and Mineral Exploration and Development Lhasa 850000China Tianjin Geological Survey Center of China Geological Survey Tianjin 300170China

The Cretaceous Period is a vital time interval in deciphering the evolutionary history of the Neo-Tethys Ocean and the convergence of different plates and blocks across the Qinghai-Tibetan Plateau.A detailed stratigraphic framework and paleogeographic patterns are the basis for understanding the evolution of the Neo-Tethys Ocean and the formation of the QinghaiTibetan ***,the Cretaceous stratigraphy,biota,paleogeography,and major geological events in the Qinghai-Tibetan Plateau are analyzed to establish an integrative stratigraphic framework,reconstruct the paleogeography during the Cretaceous Period,and decode the history of the major geological *** Cretaceous rocks of the Qinghai-Tibetan Plateau and its surrounding area are predominantly marine deposits,with a small amount of interbedded marine-terrestrial and terrestrial *** Indus-Yarlung Tsangpo Suture Zone was responsible for the deposition of deep marine sediments dominated by ophiolite suites and radiolarian *** the south,the Tethys Himalayas and Indus Basin received marine sediments of varying depths and lithology;to the north,the Xigaze and Ladakh forearc basins are also filled with marine *** Lhasa Block,Karakorum Block,western Tarim Basin,and West Burma block consist of shallow marine,interbedded marine-terrestrial,and terrestrial *** Qiangtang Basin and other areas are dominated by terrestrial *** Cretaceous strata of the Qinghai-Tibetan Plateau and its surrounding areas are widely distributed and diversified,with abundant foraminifera,calcareous nannofossils,radiolarians,ammonites,bivalves,and *** the basis of integrated lithostratigraphic,biostratigraphic,geochronologic,and chemostratigraphic analyses,we proposed herein a comprehensive stratigraphic framework for the Cretaceous Period of the eastern *** analyzing the Cretaceous biota of different biogeographic zones from eastern Neo-Tethys and its surrounding a

关键词： Qinghai-Tibetan Plateau Tethys Cretaceous Stratigraphy Biota Paleogeography

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固液混合动力火箭地面发射系统时序设计

固体火箭技术 2014年第2期37卷 272-276页

作者：宋佳王伦蔡国飙齐霄强北京航空航天大学宇航学院北京100191 北京机电工程研究所北京100074

针对固液混合动力探空火箭对发射前期准备过程、发射过程、飞行过程的时序控制要求,提出了一种固液混合动力探空火箭地面发射时序控制系统。设计并实现了对复位信号、转电信号、地面供电信号、采集系统触发信号、点火器、液路电磁阀、... 详细信息

针对固液混合动力探空火箭对发射前期准备过程、发射过程、飞行过程的时序控制要求,提出了一种固液混合动力探空火箭地面发射时序控制系统。设计并实现了对复位信号、转电信号、地面供电信号、采集系统触发信号、点火器、液路电磁阀、增压电磁阀、辅路吹除电磁阀、主路吹除电磁阀的时序控制系统。以PLC、单片机为核心控制装置,完成了对箭载控制电路的转电、数据采集系统触发、点火发射以及氧化剂吹除的精确时序控制。该系统已成功用于多次固液探空火箭靶场试验,操作简单、稳定性强、可靠性高,完全满足固液动力探空火箭的地面发射要求。

关键词：探空火箭固液混合动力发动机时序控制地面发射控制系统

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角钢格构混凝土组合梁受弯性能研究

建筑结构学报 2024年第8期45卷 230-242页

作者：楼国彪李依繁贾桂林陈丕旭同济大学土木工程学院上海200092 同济大学土木工程防灾国家实验室上海200092

为研究角钢格构混凝土组合梁的受弯性能,开展了四点弯曲试验及有限元模拟研究,并基于平衡条件推导正截面受弯承载力计算式,提出了相关设计建议。研究结果表明:纯弯段布置缀条可有效限制受压区角钢的屈曲失稳破坏;试验中受拉区配钢相同... 详细信息

为研究角钢格构混凝土组合梁的受弯性能,开展了四点弯曲试验及有限元模拟研究,并基于平衡条件推导正截面受弯承载力计算式,提出了相关设计建议。研究结果表明:纯弯段布置缀条可有效限制受压区角钢的屈曲失稳破坏;试验中受拉区配钢相同的对称配钢组合梁与非对称配钢组合梁相比,受弯承载力提高约10%,延性也有不同程度的提升。因此在经济合理的范围内,推荐使用对称配钢的角钢格构混凝土组合梁;增大配钢率可提高对称配钢角钢格构混凝土组合梁的受弯承载力,配钢率从3.94%提高至5.58%时,对称配钢组合梁的受弯承载力提高约20%;此外,角钢格构混凝土组合梁的受弯变形满足平截面假定;对于对称配钢的角钢格构混凝土组合梁,其角钢骨架对核心区混凝土的约束作用不可忽略,可根据Mander模型计算混凝土的强度提高系数,或简化的取1.2。

关键词：装配式角钢混凝土组合梁四点弯曲试验有限元分析受弯性能设计方法