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发射波束域MIMO-STAP雷达发射接收联合设计方法

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国防科技大学学报 2024年第2期46卷 139-145页

作者：李志汇潘继飞周青松毛云祥刘方正石树杰国防科技大学电子对抗学院安徽合肥230037

研究了信号相关杂波背景下机载多输入多输出(multiple-input multiple-output,MIMO)雷达发射波束形成和接收滤波器的联合设计问题,建立了机载MIMO雷达发射波束域空时自适应处理(space-time adaptive processing,STAP)信号模型。为了提... 详细信息

研究了信号相关杂波背景下机载多输入多输出(multiple-input multiple-output,MIMO)雷达发射波束形成和接收滤波器的联合设计问题,建立了机载MIMO雷达发射波束域空时自适应处理(space-time adaptive processing,STAP)信号模型。为了提升杂波环境下目标的检测性能,通过最大化输出信干噪比构建了发射波束形成和接收滤波器的联合设计问题;然后,设计了一种新的基于优化最小化(majorization-minimization,MM)框架的迭代优化算法来解决联合设计问题。该算法通过合理寻找目标函数的下界可以有效提升算法的收敛速度并降低算法的运行时间。此外,与传统的相控阵雷达和MIMO雷达相比,优化后的发射波束形成和接收滤波器可以显著提升输出信干噪比,仿真实验验证了所提方法的有效性。

关键词：多输入多输出雷达空时自适应处理发射波束形成接收滤波器输出信干噪比联合设计

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赔礼道歉的强制执行规则

人民司法 2024年第2期 104-107页

作者：周青松谢天宇上海市闵行区人民法院

【裁判要旨】赔礼道歉义务的强制执行,既需要柔性的道德唤醒,也可以采取适当的间接执行措施,但是各措施应该梯次适用、循序渐进。首先应该是以柔性的释法说理和道德唤醒启迪良知,让被执行人真诚悔过,主动赔礼道歉,修复申请人的精神性损... 详细信息

【裁判要旨】赔礼道歉义务的强制执行,既需要柔性的道德唤醒,也可以采取适当的间接执行措施,但是各措施应该梯次适用、循序渐进。首先应该是以柔性的释法说理和道德唤醒启迪良知,让被执行人真诚悔过,主动赔礼道歉,修复申请人的精神性损害。其次,如果释法说理不奏效,可以采取适当的间接执行措施,倒逼被执行人赔礼道歉,实现次等的“不真诚的赔礼道歉”。最后,通过替代履行的方式,刊登赔礼道歉公告或者判决书,以替代的方式宣示正义。

关键词：强制执行赔礼道歉释法说理被执行人判决书间接执行措施裁判要旨循序渐进

时变对抗环境中基于双层加权估计的雷达干扰决策方法

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现代雷达 2024年第4期46卷 95-100页

作者：徐一波张剑云周青松李志汇国防科技大学电子对抗学院安徽合肥230031

如何在目标雷达策略实时变化的战场对抗环境中准确估计出干扰策略的收益,是有效评估干扰策略效果并不断优化干扰策略的关键之一。针对这一问题,在常见的收益估计方法的基础上,提出了一种时变对抗环境中基于双层加权估计的雷达干扰决策... 详细信息

如何在目标雷达策略实时变化的战场对抗环境中准确估计出干扰策略的收益,是有效评估干扰策略效果并不断优化干扰策略的关键之一。针对这一问题,在常见的收益估计方法的基础上,提出了一种时变对抗环境中基于双层加权估计的雷达干扰决策方法。该方法通过交叉验证、对收益均值进行加权估计和加权更新来估计所选策略平均收益,并根据策略权重和最大估计值选取最优策略。仿真实验表明,该方法对所选策略平均收益的估计值总体更接近于真实的最优策略收益均值,并能够根据对抗环境的变化,识别最优策略,并逐步提高对最优策略的选取概率。

关键词：雷达干扰决策双层加权估计平均收益选取概率

市域轨道交通“桥建合一”高架车站车致振动响应分析

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城市道桥与防洪 2024年第6期 240-244,253页

作者：吴业飞周青松崔鑫吴王剑浙江华展研究设计院股份有限公司浙江宁波315012 上海市建筑科学研究院有限公司上海市200032 中铁第四勘察设计院集团有限公司湖北武汉430000

为探究列车在不同车速以及空载、满载情况下通过“桥建合一”型车站时所引起的结构振动问题,以某“桥建合一”高架越行车站为例,建立车-轨道-车站的有限元结构耦合动力分析模型,分析B型车在80~120 km/h速度下作用于站房结构及结构反作... 详细信息

为探究列车在不同车速以及空载、满载情况下通过“桥建合一”型车站时所引起的结构振动问题,以某“桥建合一”高架越行车站为例,建立车-轨道-车站的有限元结构耦合动力分析模型,分析B型车在80~120 km/h速度下作用于站房结构及结构反作用于列车的动力响应结果,并进行舒适度评价。结果表明:当B型车以80~120 km/h通过该车站时,列车竖、横向振动加速度以及列车的乘坐舒适性均满足相关规范限值要求;承轨层竖向响应均大于横向响应,且竖向位移和竖向加速度随着车速的增加变化较小,横向位移和横向加速度随着车速的增加呈现先增大后减小的趋势;候车厅楼板的最大竖向响应均大于其横向响应,最大横向位移随着车速的增大呈现先增大后减小的趋势,最大横、竖向加速度均随着车速的增加呈现变大的趋势。通过理论计算结果与“桥建合一”车站现场实测数据的比对,验证了空间耦合振动有限元模拟计算的可靠性,可为同类高架车站结构的计算与分析提供参考。

关键词：桥建合一市域轨道振动分析动力响应

Characterization of the first mitochondrial genome of Aclerdidae (Hemiptera: Coccoidea) with a novel gene arrangement

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Zoological Systematics 2022年第4期47卷 293-304页

作者： qingsong zhou Mei Xiong Arong Luo Xubo Wang San’an Wu Key Laboratory of Zoological Systematics and Evolution Institute of ZoologyChinese Academy of SciencesBeijing 100101China College of Biological Sciences University of Chinese Academy of SciencesBeijing 100049China Southwest Forestry University Kunming 650224China The Key Laboratory for Silviculture and Conservation of Ministry of Education Beijing Forestry UniversityBeijing 100083China

Scale insects comprise a diverse group of insects within superfamily Coccoidea in the suborder Sternorrhyncha,many of them are important pests of economic *** advent in next-generation sequencing(NGS)technologies has revolutionized conventional phylogenomic researches,causing a rapid accumulation of sequenced insect mitochondrial ***,there have been few studies on the mitochondrial genome of diverse scale insect *** using NGS methods,the complete mitochondrial genome of Nipponaclerda biwakoensis was obtained in this study,representing the first mtDNA of the family *** whole mitochondrial genome is 16,654 bp in length with an A+T content of 81.3%,including 13 protein-coding genes(PCGs),2 ribosomal RNAs,17 transfer RNAs and a control *** PCGs begin with typical ATN codons and use standard TAA as their termination codons,except nad1 gene stopping with ***,this mitochondrial genome shows a unique gene rearrangement with a long fragment(trnP-trnC-trnI-nad2-trnY-trnT)insertion in the conserved region nad6-cob,which is novel to Hemiptera,even *** phylogeny reconstruction of Sternorrhyncha based on 13 PCGs and 2 rRNAs under Bayesian Inference method support a robust topology that Aleyrodoidea is the earliest branch of Sternorrhyncha,with Psylloidea as the sister group of the(Aphidoidea+Coccoidea)clade.

关键词： Mitochondrial genome scale insects gene arrangement phylogeny Nipponaclerda biwakoensis

An integrative bioinformatics pipeline shows that honeybee-associated microbiomes are driven primarily by pollen composition

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Insect Science 2023年第2期30卷 555-568页

作者： Douglas Chesters Xiuwei Liu Karen L.Bell Michael C.Orr Tingting Xie qingsong zhou Chaodong Zhu Key Laboratory ofZoological Systematics andEvolution Institute ofZoologyChinese Academy of SciencesBejingChina International College University of Chinese Academy of SciencesBejingChina Institute of Agro-Products Processing Yunnan Province Academy of Agricultural ScienceKunmingChina School of Biological Sciences University of Western AustraliaCrawleyWAAustralia cSIRO Health&Biosecurity FloreatWAAustralia College of Life Sciences Anhui Normal UniversityWuhuAnhui ProvinceChina State Key Laboratory of Integrated Pest Management Institute of ZoologyChinese Academy of SciencesBeijingChina College of Biological Sciences University of Chinese Academy of SciencesBeijingChina

The microbiomes associated with bee nests influence colony health through various mechanisms,although it is not yet clear how honeybee congeners differ in microbiome assembly processes,in particular the degrees to which floral visitations and the environment contribute to different aspects of *** used DNA metabarcoding to sequence bacterial 16S rRNA from honey and stored pollen from nests of 4 honeybee species(Apis cerana,***,***,and ***)sampled throughout Yunnan,China,a global biodiversity *** developed a computational pipeline integrating multiple databases for quantifying key facets of diversity,including compositional,taxonomic,phylogenetic,and functional ***,we assessed candidate drivers of observed microbiome dissimilarity,particularly differences in floral visitations,habitat disturbance,and other key environmental *** revealed that microbiome alpha diversity was broadly equivalent across the study sites and between bee species,apart from functional diversity which was very low in nests of the reclusive *** in microbiome composition across Yunnan was driven predominantly by pollen *** disturbance negatively impacted both compositional and phylogenetic alpha diversity of nest microbiomes,but did not correlate with microbial *** herein make progress in understanding microbiome diversity associated with key pollinators in a biodiversity hotspot,and provide a model for the use of a comprehensive informatics framework in assessing pattern and drivers of diversity,which enables the inclusion of explanatory variables both subtly and fundamentally different and enables elucidation of emergent or unexpected drivers.

关键词： Apis biodiversity hotspot honeybee informatics metabarcoding microbiome

Future directions in Systematics: A report from the 4th Systematic Biology Forum in China

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Zoological Systematics 2020年第2期45卷 78-80页

作者： Michael C.Orr Arong Luo Douglas Chesters qingsong zhou Feng Zhang Chaodong Zhu Key Laboratory of Zoological Systematics and Evolution Institute of ZoologyChinese Academy of SciencesBeijing 100101P.R.China Department of Entomology College of Plant ProtectionNanjing Agricultural UniversityNanjing 210095P.R.China State Key Laboratory of Integrated Pest Management Institute of ZoologyChinese Academy of SciencesBeijing 100101P.R.China College of Biological Sciences University of Chinese Academy of SciencesBeijing 100049P.R.China

The 4 th Systematic Biology Forum,China took place in December 2019,covering a vast array of topics across animals,bacteria,fungi,plants,and viruses in the fields of systematics and evolutionary ***,we discuss the emergent themes of this meeting and how these and other interdisciplinary research programs can be synthesized to better understand evolution in a systematic framework.

关键词： Taxonomy phylogenomics phylogenetics evolution

中下承式拱桥吊杆病害分析与更换施工监控方法研究

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市政技术 2024年第1期42卷 80-85,123页

作者：张斌谢瑜轩周青松何荣幸陈紫辉潘旸上海市建筑科学研究院有限公司浙江分公司浙江杭州310005

为探究拱桥吊杆病害机理与吊杆更换施工监控方法,从吊杆的组成结构入手,详细地分析了吊杆的病害与产生机理,介绍了几种常见的吊杆更换方法与更换流程,再以内力和线形为双重监控指标,制定了一套完整的吊杆更换施工监控方法,最后以某中承... 详细信息

为探究拱桥吊杆病害机理与吊杆更换施工监控方法,从吊杆的组成结构入手,详细地分析了吊杆的病害与产生机理,介绍了几种常见的吊杆更换方法与更换流程,再以内力和线形为双重监控指标,制定了一套完整的吊杆更换施工监控方法,最后以某中承式系杆拱桥吊杆更换工程为例,验证了该方法的可行性。该研究成果可为同类型拱桥维修加固以及吊杆更换提供参考与指导。

关键词：拱桥吊杆组成病害分析更换方法施工监控

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A Hessian Recovery Based Linear Finite Element Method for Molecular Beam Epitaxy Growth Model with Slope Selection

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Advances in Applied Mathematics and Mechanics 2024年第1期16卷 1-23页

作者： Minqiang Xu qingsong Zou College of Science Zhejiang University of TechnologyHangzhouZhejiang 310023China School of Computer Science and Engineering Sun Yat-Sen UniversityGuangzhouGuangdong 510275China School of Computer Science and Engineering and Guangdong Province Key Laboratory of Computational ScienceSun Yat-Sen UniversityGuangzhouGuangdong 510275China

In this paper,we present a Hessian recovery based linear finite element method to simulate the molecular beam epitaxy growth model with slope *** the time discretization,we apply a first-order convex splitting method and secondorder Crank-Nicolson *** the space discretization,we utilize the Hessian recovery operator to approximate second-order derivatives of a C^(0)linear finite element function and hence the weak formulation of the fourth-order differential operator can be discretized in the linear finite element *** energy-decay property of our proposed fully discrete schemes is rigorously *** robustness and the optimal-order convergence of the proposed algorithm are numerically *** a large spatial domain for a long period,we simulate coarsening dynamics,where 1/3-power-law is observed.

关键词： Molecular beam epitaxy Hessian recovery linear finite element method superconvergence.