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中国农村基层协商民主制度变迁研究——基于理性选择制度主义视角

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求实 2024年第2期 18-31,M0003页

作者：王永香李忠鹏西安交通大学马克思主义学院陕西西安710049

农村基层协商民主制度建设是凸显全过程人民民主在广大农村地区治理优势的必然要求,它既是乡村治理的重要内容,也是实现治理有效的关键路径。以理性选择制度主义为视角对农村基层协商民主制度进行研究,根据理性选择制度主义的3种典型制... 详细信息

农村基层协商民主制度建设是凸显全过程人民民主在广大农村地区治理优势的必然要求,它既是乡村治理的重要内容,也是实现治理有效的关键路径。以理性选择制度主义为视角对农村基层协商民主制度进行研究,根据理性选择制度主义的3种典型制度模式,对农村协商民主制度的子集进行类型划分,突出不同制度集合具有的作为集体决策规则、嵌入委托代理结构的功能性特征,基层试点与顶层设计相结合的总体性特征及强调配套制度辅助、注重程序机制设计的现时性特征,从而弥补当前农村协商民主制度类型学研究的不足。在农村协商民主制度演变过程中,环境设定、利益驱动、主体推动、绩效评价形成了其结构性逻辑,而供需匹配下的制度创新、绩效驱动下的制度扩散、偏好稳定下的制度设计构成了农村协商民主制度变迁的主要内容。在“制度—行为”分析视角下,农村基层协商民主制度的变迁过程是由诸多制度创新点连接起来的,过程中伴随着制度的模仿与扩散,变迁所带来的结果则是全面的顶层制度安排。

关键词：乡村治理农村协商民主制度理性选择制度主义制度变迁变迁逻辑动力机制

基于数字孪生与k-近邻算法的车间设备运行状态预测研究

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制造技术与机床 2024年第3期 193-199页

作者：和征李忠鹏杨小红西安工程大学管理学院陕西西安710048

由于传统车间设备运行状态预测不能有效利用历史数据进行学习,实时响应能力有限,难以在复杂调度环境中取得良好效果,因此文章提出一种数字孪生与k-近邻算法相结合的车间设备运行状态预测模型。构建车间设备实体在信息空间的数字孪生模型... 详细信息

由于传统车间设备运行状态预测不能有效利用历史数据进行学习,实时响应能力有限,难以在复杂调度环境中取得良好效果,因此文章提出一种数字孪生与k-近邻算法相结合的车间设备运行状态预测模型。构建车间设备实体在信息空间的数字孪生模型,并建立设备实体与模型之间的映射关系,从而获取实时特征数据,即设备的运行状态特征数据。运用k-近邻算法计算实时特征数据与历史数据之间的欧几里得距离,即计算设备当前运行状态与历史已知状态的相似度,最终通过前k个距离所对应的设备历史运行状态数据,预测设备的当前运行状态。该模型的本质是通过数字孪生的实时数据采集,获取指定设备运行状态特征数据,运用k-近邻算法预测设备的实时运行状态。相较以往研究,本研究贡献在于提高设备实时运行状态预测的准确率。如果将数字孪生、k-近邻算法与具备自我学习能力的相关算法相结合,模型的预测效果会更好。

关键词： k-近邻算法机器学习数字孪生车间设备运行状态预测

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论全过程人民民主的五重维度

北京航空航天大学学报（社会科学版） 2024年第2期37卷 30-40页

作者：王永香李忠鹏西安交通大学马克思主义学院陕西西安710049

从理论维度看,全过程人民民主是人民民主理论的创新形态,是新时代中国共产党人关于社会主义政治建设的重大理论创新,是马克思主义人民民主理论的当代体现;从历史维度看,这是中国共产党对百余年来民主实践进行经验总结所提出的全新课题;... 详细信息

从理论维度看,全过程人民民主是人民民主理论的创新形态,是新时代中国共产党人关于社会主义政治建设的重大理论创新,是马克思主义人民民主理论的当代体现;从历史维度看,这是中国共产党对百余年来民主实践进行经验总结所提出的全新课题;从现实维度看,这是全面建成社会主义现代化强国、实现中华民族伟大复兴的迫切需要,也是创新中国式民主对外传播话语的现实需要;从文化维度看,全过程人民民主植根于中华优秀传统文化土壤,创造性发展了以民为本、天下为公、兼容和合等重要思想;从制度维度看,全过程人民民主具有坚实的宏观制度体系支撑,又有不断完善的具体运行机制,人民群众对这些制度的认同正在不断增强。深入研究全过程人民民主五个维度的生发逻辑,对推进新时代人民民主事业,坚定走中国特色社会主义政治发展道路的信心具有重要理论意义和实践价值。

关键词：中国共产党全过程人民民主政治现代化民主治理制度形态

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五轴侧铣加工铣削接触区域建模

工具技术 2024年第2期58卷 73-79页

作者：李忠朋张维曹珍珍张立强刘钢上海工程技术大学机械与汽车工程学院成都永峰科技有限公司成都智远先进制造技术研究院有限公司

五轴侧铣加工时,刀具姿态的时变性使得加工过程中的刀具和工件接触区域复杂多变,提取铣削接触区域对研究多轴铣削中的切削力、加工误差和颤振稳定性至关重要,对此提出一种无需提取待加工表面信息的瞬时接触轮廓解析法。使用一系列离散... 详细信息

五轴侧铣加工时,刀具姿态的时变性使得加工过程中的刀具和工件接触区域复杂多变,提取铣削接触区域对研究多轴铣削中的切削力、加工误差和颤振稳定性至关重要,对此提出一种无需提取待加工表面信息的瞬时接触轮廓解析法。使用一系列离散切削微元表示刀具,根据刀具位置和铣削参数获得各切削微元特征点集,并使用样条曲线对其拟合。综合距离和进给方向条件限制筛选出每段切削微元的切入/切出点,同时表示在工件坐标系中获得瞬时接触轮廓。仿真和试验结果表明,最大切入/切出角误差均在3%以内,且计算效率约为实体建模法的9.5倍,证明了本方法的准确性和高效性。

关键词：五轴侧铣铣削接触区域刀具位置铣削参数待加工表面

Stretchable iontronics with robust interface bonding between dielectric and ion-conducting elastomers

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Nano Research 2023年第9期16卷 11862-11870页

作者： zhongpeng li Panpan Zhang Yangshi Shao Zi-Hao Guo Xiong Pu School of Chemistry and Chemical Engineering Center on Nanoenergy ResearchSchool of Physical Science and TechnologyGuangxi UniversityNanning 530004China CAS Center for Excellence in Nanoscience Beijing Key Laboratory of Micro-Nano Energy and SensorBeijing Institute of Nanoenergy and NanosystemsChinese Academy of SciencesBeijing 101400China School of Nanoscience and Technology University of Chinese Academy of SciencesBeijing 100049China

Dry ion-conducting elastomers(ICEs)are emerging stretchable and ionic conductive materials that are demonstrated with excellent thermal stability and great promise in multifunctional iontronic ***,the poor interface between the ICEs and the dielectric material is one of the issues hindering the application of the stretchable iontronic ***,a polydimethylsiloxane(PDMS)based ion-conducting elastomer with dynamic crosslinking structures is reported,which achieves the stretchability of 475%and healing efficiency of 99%.More importantly,a robust interface bonding can be generated between the electrode and the dielectric material,which is beneficial to enhance the performance and lifespan of the flexible iontronic *** this PDMS based ICE as the electrode and PDMS as the dielectric material,two stretchable iontronic devices(triboelectric nanogenerator and capacitive pressure sensor)are realized with overall self-healing and stretchable *** findings provide a promising strategy to achieve integrate stretchable iontronics or electronics with a robust interface between the electrode and dielectric materials.

关键词： ion-conducting elastomers robust interface iontronics triboelectric nanogenerator pressure sensor

Proposal for experimentally observing expectant ball lightning

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Chinese Optics Letters 2021年第8期19卷 116-120页

作者： Silin Guo zhongpeng li Chuliang Zhou Ye Tian State Key Laboratory of High Field Laser Physics and CAS Center for Excellence in Ultra-Intense Laser Science Shanghai Institute of Optics and Fine MechanicsChinese Academy of SciencesShanghai 201800China Center of Materials Science and Optoelectronics Engineering University of Chinese Academy of SciencesBeijing 100049China

Ball lightning is widely concerning because it is hard to detect,predict,and *** dependences of electromagnetic(EM)solitons,which are considered expectant ball lightning,forming at the wavelength of the incident light are investigated with two-dimensional particle-in-cell *** shows that both the long wavelength microwave and the short wavelength laser are not suitable for producing the observed ball-lightning-like EM solitons.A strong field terahertz wave is proposed to inject and generate EM *** paper can provide some references for researchers studying ball lightning.

关键词： expectant ball lightning electromagnetic solitons terahertz

ABF2, ABF3, and ABF4 Promote ABA-Mediated Chlorophyll Degradation and Leaf Senescence by Transcriptional Activation of Chlorophyll Catabolic Genes and Senescence-Associated Genes in Arabidopsis

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Molecular Plant 2016年第9期9卷 1272-1285页

作者： Shan Gao Jiong Gao Xiaoyu Zhu Yi Song zhongpeng li Guodong Ren Xin Zhou Benke Kuai State Key Laboratory of Genetic Engineering School of Life Sciences Ministry of Education Key Laboratory for Biodiversity Science and Ecological Engineering Institute of Biodiversity ScienceFudan University Shanghai 200438 China These authors contributed equally to this article.

Chlorophyll （Chl） degradation is an integral process of leaf senescence, and NYE1/SGR1 has been demonstrated as a key regulator of Chl catabolism in diverse plant species. In this study, using yeast one-hybrid screening, we identified three abscisic acid （ABA）-responsive element （ABRE）-binding transcription factors, ABF2 （AREB1）, ABF3, and ABF4 （AREB2）, as the putative binding proteins of the NYE1 promoter. Through the transactivation analysis, electrophoretic mobility shift assay, and chromatin immunoprecipitation, we demonstrated that ABF2, ABF3, and ABF4 directly bound to and activated the NYE1 promoter in vitro and in vivo. ABA is a positive regulator of leaf senescence, and exogenously applied ABA can accelerate Chl degradation. The triple mutant of the ABFs, abf2abf3abf4, as well as two ABA-insensitive mutants, abil-1 and snrk2.2/2.3/2.6, exhibited stay-green phenotypes after ABA treatment, along with decreased induction of NYE1 and NYE2 expression. In contrast, overexpression of ABF4 accelerated Chl degradation upon ABA treatment. Interestingly, ABF2/3/4 could also activate the expression of two Chl catabolic enzyme genes, PAO and NYCl, by directly binding to their promoters. In addition, abf2abf3abf4 exhibited a functional stay-green phenotype, and senescence-associated genes （SAGs）, such as SAG29 （SWEET15）, might be directly regulated by the ABFs. Taken together, our results suggest that ABF2, ABF3, and ABF4 likely act as key regulators in mediating ABA-triggered Chl degradation and leaf senescence in general in Arabidopsis.

关键词： abscisic acid ABF transcription factor chlorophyll degradation leaf senescence Arabidopsisthaliana

REF6 promotes lateral root formation through de-repression of PIN1/3/7 genes

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Journal of Integrative Plant Biology 2019年第4期61卷 383-387页

作者： Xiaolei Wang Jiong Gao Shan Gao zhongpeng li Benke Kuai Guodong Ren State Key Laboratory of Genetic Engineering and Fudan Center for Genetic Diversity and Designing Agriculture Institute of Plant Biology School of Life Sciences Fudan University School of life Sciences Qilu Normal University

The H3K27 methyltransferase CLF inhibits lateral root(LR) formation through depositing the repressive H3K27me3 mark to the chromatin of PIN1, a key polar auxin transporter gene. Here, we show that the H3K27me3 demethylase REF6 promotes lateral root primordium initiation and LR emergence. REF6 directly binds to the chromatin of PIN1/3/7. Dysfunction in REF6 results in increased levels of H3K27me3 on PIN1/3/7 and suppressed expression of PIN genes. Genetic analysis of the clf ref6 double mutant revealed an antagonistic action between CLF and REF6, in terms of LR *** findings indicate that H3K27 methylation and demethylation activities are likely coordinated to ensure proper LR organogenesis.

关键词： REF6 PIN1/3/7 genes^FA

Elliptical vibration chiseling:a novel process for texturing ultra-high-aspect-ratio microstructures on the metallic surface

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International Journal of Extreme Manufacturing 2024年第2期6卷 449-467页

作者： Zhiwei li Jianfu Zhang zhongpeng Zheng Pingfa Feng Dingwen Yu Jianjian Wang State Key Laboratory of Tribology in Advanced Equipment Department of Mechanical EngineeringTsinghua UniversityBeijing 100084People’s Republic of China Beijing Key Laboratory of Precision/Ultra-precision Manufacturing Equipments and Control Department of Mechanical EngineeringTsinghua UniversityBeijing 100084People’s Republic of China Division of Advanced Manufacturing Shenzhen International Graduate SchoolTsinghua UniversityShenzhen 518055People’s Republic of China

High-aspect-ratio metallic surface microstructures are increasingly demanded in breakthrough applications,such as high-performance heat transfer enhancement and surface plasmon ***,the fast and cost-effective fabrication of high-aspect-ratio microstructures on metallic surfaces remains challenging for existing *** study proposes a novel cutting-based process,namely elliptical vibration chiseling(EV-chiseling),for the high-efficiency texturing of surface microstructures with an ultrahigh aspect *** conventional cutting,EV-chiseling superimposes a microscale EV on a backward-moving *** tool chisels into the material in each vibration cycle to generate an upright chip with a high aspect ratio through material *** to the tool’s backward movement,the chip is left on the material surface to form a microstructure rather than falling *** one microstructure is generated in one vibration cycle,the process can be highly efficient using ultrafast(>1 kHz)tool vibration.A finite element analysis model is established to explore the process mechanics of ***,a mechanistic model of the microstructured surface generation is developed to describe the microstructures’aspect ratio dependency on the process ***,surface texturing tests are performed on copper to verify the efficacy of *** micro ribs with a spacing of 1–10μm and an aspect ratio of 2–5 have been successfully textured on *** with the conventional EV-cutting that uses a forward-moving tool,EV-chiseling can improve the aspect ratio of textured microstructure by up to 40 *** experimental results also verify the accuracy of the developed surface generation model of ***,the effects of elliptical trajectory,depth of cut,tool shape,and tool edge radius on the surface generation of micro ribs have been discussed.

关键词： metallic microstructure high aspect ratio backward-moving cutting vibration cutting chiseling material deformation