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区块链技术在电网数据处理中的应用

计算机应用文摘 2024年第14期40卷 92-93,97页

作者：张浩海顾新桥崔跃君严俊显张红北京中电普华信息技术有限公司北京100085

为提升电网数据处理的安全性与有效性,可以尝试应用区块链技术实现数据的永久储存、资源共享、权限加密和交互调用,从而构建一个全新的电网数据运行体系。文章将深入分析和探讨区块链技术在电网数据处理中的应用。

关键词：电网数据区块链技术可行性分析

Focal Mechanism Analysis for Determination of Potential Source Zones in South China and Its Adjacent Regions

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Earthquake Research in China 2006年第4期20卷 385-395页

作者： Zheng yuejun Zhang Shimin cui Xiaofeng Huang Zhongxian Institute of Crustal Dynamics China Earthquake Administration Beijing 100085 China

Based on the results of focal mechanism solutions in southeastern areas of China （south of 34°N and east of 105° E）, this article analyzes the correlation of focal mechanism solutions with seismogenic structures of moderate strong earthquakes and the direction of potential source zones. The data show that the nodal planes of focal mechanism solutions and the principle stresses in southern China are of predominantly similar directions, most of the solutions for M ≥4.0 earthquakes correspond to the main structure directions as well as the directions of potential source zones. The statistical results of multiple small earthquakes concerning nodal planes and main stress axes are also reliable for determining the direction of potential source zones. According to the analysis of focal mechanism solutions, long-axis direction of isoseismals distribution of aftershocks, geologic structures, and seismic activity in two areas of the Ms6.1 earthquake in the south Yellow Sea in 1996 and the MsS.2 earthquake in Fujian in 1997, the potential source zone division is discussed.

关键词： Focal mechanism Southern areas of China Direction of potential source zone

论近代中国公司制的初建——新中国成立70周年之际的历史回望

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长白学刊 2019年第3期 102-109页

作者：崔玥珺杨扬北京大学马克思主义学院北京100871 北京物资学院经济学院北京101149

近代中国公司制的形成是中西方商业文化冲突与融合的结果。特殊历史时期下,公司制的萌芽、成型、完善与反思缩影了近代中国商业变迁的主要脉络。这一时期,资本与资本构成为近代中国公司制的形成提供了源动力,文化冲突与企业家精神则助... 详细信息

近代中国公司制的形成是中西方商业文化冲突与融合的结果。特殊历史时期下,公司制的萌芽、成型、完善与反思缩影了近代中国商业变迁的主要脉络。这一时期,资本与资本构成为近代中国公司制的形成提供了源动力,文化冲突与企业家精神则助推了公司制的完善与发展。立足于新中国成立70周年的时代节点,以史为鉴,回望中国公司思想之根源,追溯中国公司制度之雏形,能够帮助我们厘清现代企业制度的来龙去脉,为构建新时代新型公司制度提供本土化参考,是中国经济增长动力机制转变的必要选择,也是为完善习近平新时代中国特色社会主义经济思想和理论的史实梳理工作。

关键词：资本公司制传统文化

思政育人的五维向度——基于马克思“人的全面发展”理论的思考

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吉林师范大学学报（人文社会科学版） 2023年第3期51卷 117-124页

作者：崔玥珺王乾宇外交学院国际经济学院北京100091 内蒙古大学经济学院内蒙古呼和浩特010021

从“三全育人”的“全方位育人”出发,基于马克思“人的全面发展”理论,提出思政育人的五维向度,即“人的个体实践的发展”“人的社会关系及发展”“人与自然之间关系及发展”“历史观”向度及“未来观”向度。阐明“由内至外”“从个... 详细信息

从“三全育人”的“全方位育人”出发,基于马克思“人的全面发展”理论,提出思政育人的五维向度,即“人的个体实践的发展”“人的社会关系及发展”“人与自然之间关系及发展”“历史观”向度及“未来观”向度。阐明“由内至外”“从个体到总体”“从过去到未来”不同视域下,全方位发展的马克思主义价值观构建过程,并结合各教育层次心理特征提出思政元素融入教学实践的建议。

关键词：人的全面发展思政教育社会关系唯物史观共产主义

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拉伸成膜工艺诱导聚乳酸结晶行为的研究进展

材料导报 2024年第18期38卷 262-270页

作者：丁诗娟崔玲娜刘跃军湖南工业大学包装与材料工程学院湖南株洲412007

聚乳酸(Polylactic acid,PLA)具有良好的生物可降解性、生物相容性以及一定的力学强度,是当前包装材料应用研究的热点之一。然而,PLA脆性大、耐热性差等问题限制了其应用范围的拓展。拉伸成膜工艺是一种温度场、拉伸场等多场耦合的塑料... 详细信息

聚乳酸(Polylactic acid,PLA)具有良好的生物可降解性、生物相容性以及一定的力学强度,是当前包装材料应用研究的热点之一。然而,PLA脆性大、耐热性差等问题限制了其应用范围的拓展。拉伸成膜工艺是一种温度场、拉伸场等多场耦合的塑料薄膜成型工艺,在拉伸成膜过程中,调节拉伸温度、拉伸比、拉伸速率等工艺参数,可改变PLA分子的结晶、取向等凝聚态结构以及拉伸诱导结晶程度,最终改善PLA薄膜的性能。本文综述了拉伸成膜工艺参数(拉伸温度、拉伸比、拉伸速率等)分别对PLA拉伸诱导结晶行为的影响,以期为实现PLA薄膜的高性能化以及拓展其应用范围提供一定的理论指导。

关键词：聚乳酸(PLA) 拉伸薄膜拉伸诱导结晶凝聚态结构拉伸比

Neurodevelopmental impairment induced by prenatal valproic acid exposure shown with the human cortical organoid-on-a-chip model

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Microsystems & Nanoengineering 2020年第1期6卷 754-767页

作者： Kangli cui Yaqing Wang Yujuan Zhu Tingting Tao Fangchao Yin Yaqiong Guo Haitao Liu Fei Li Peng Wang yuejun Chen Jianhua Qin Division of Biotechnology CAS Key Laboratory of SSACDalian Institute of Chemical PhysicsChinese Academy of Sciences457 Zhongshan RoadDalian 116023China University of Chinese Academy of Sciences Beijing 100049China CAS Center for Excellence in Brain Science and Intelligence Technology Chinese Academy of SciencesShanghai 200031China Institute for Stem Cell and Regeneration Chinese Academy of SciencesBeijingChina

Prenatal exposure to environmental insults can increase the risk of developing neurodevelopmental *** of the antiepileptic drug valproic acid(VPA)during pregnancy is tightly associated with a high risk of neurological disorders in ***,the lack of an ideal human model hinders our comprehensive understanding of the impact of VPA exposure on fetal brain development,especially in early ***,we present the first report indicating the effects of VPA on brain development at early stages using engineered cortical organoids from human induced pluripotent stem cells(hiPSCs).Cortical organoids were generated on micropillar arrays in a controlled manner,recapitulating the critical features of human brain development during early *** VPA exposure,cortical organoids exhibited neurodevelopmental dysfunction characterized by increased neuron progenitors,inhibited neuronal differentiation and altered forebrain *** analysis showed new markedly altered genes(e.g.,KLHL1,LHX9,and MGARP)and a large number of differential expression genes(DEGs),some of which are related to *** particular,comparison of transcriptome data via GSEA and correlation analysis revealed the high similarity between VPA-exposed organoids with the postmortem ASD brain and autism patient-derived organoids,implying the high risk of autism with prenatal VPA exposure,even in early *** new findings facilitate a better understanding of the cellular and molecular mechanisms underlying postnatal brain disorders(such as autism)with prenatal VPA *** established cortical organoid-on-a-chip platform is valuable for probing neurodevelopmental disorders under environmental exposure and can be extended to applications in the study of diseases and drug testing.

关键词： markedly inhibited exposure

Obtain the optimal of logistics delivery network with annealing algorithm

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Engineering Sciences 2013年第6期11卷 44-47页

作者： Duan Jingmin Chang yuejun Li Zanxiang cui Jianming Department of Architectural Engineering Sanmenxia Polytechnic Department of Bridge Engineering Southwest Jiaotong University Henan Construction Engineering Department Building School of Information Engineering Chang'an University

Simulated annealing(SA) algorithm is a heuristic algorithm,proposed one approximation algorithm of solving optimization combinatorial problems inspired by objects in the annealing process of heating crunch. The algorithm is superior to the traditional greedy algorithm,which avoids falling into local optimum and reaches global optimum. There are often some problems to find the shortest path,etc in the logistics and distribution network, and we need optimization for logistics and distribution path in order to achieve the shortest,best,most economical,and so on. The paper uses an example of SA algorithm validation to verify it,and the method is proved to be feasible.

关键词： SA algorithm global optimum logistics and distribution network

The Method of Spatially Smoothed Seismicity Parameters in Consideration of Seismotectonic Background and Its Application to Seismic Hazard Estimation

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Earthquake Research in China 2013年第1期27卷 121-132页

作者： Zhang Lifang Lv yuejun Peng Yanju Ma Xiaoling cui Manfeng Institute of Crustal Dynamics China Earthquake Administration China Earthquake Networks Center

In this study, the North China seismic region was selected as the study area, and evaluation of seismic hazard using the spatial smoothing seismicity model was performed. Firstly, the study area is divided into grids, and some parameters （e. g. b-value, Mo, Me, azimuth and M-L relationship ） for each seismotectonic model were assigned. Secondly, using elliptical smoothing based on a seismotectonic background model, the statistical earthquake incidence rate in each grid is successively calculated. Lastly, the relevant ground motion attenuation relationship is chosen to assess seismic hazard of general sites. The maps for the distribution of horizontal peak ground acceleration with 10% probability of exceedance in 50 years were obtained by using the seismic hazard analysis method based on grid source. This seismicity model simplifies the methodology of probabilistic seismic hazard analysis, especially appropriate for those places where seismic tectonics is not yet clearly known. This method can provide valuable references for seismic zonation and seismic safety assessment for significant engineering projects.

关键词： North China seismic region Seismotectonic background region Seismichazard estimation Spatial smoothing approach

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浮体式结构阻力系数试验研究

工程科学与技术 2022年第6期54卷 222-229页

作者：崔贞傅宗甫陈月君常州工学院土木建筑工程学院江苏常州213032 河海大学水利水电学院江苏南京210098 黄河水利委员会黄河水利科学研究院水利部黄河泥沙重点实验室河南郑州450003

浮体式结构作为一种适合于沿海地区及内河水利枢纽工程建设的新型生态构筑物,当在平原水利防洪工程中运行时,由于浮体的阻挡,导致水流发生分流产生水头损失,进而影响过流能力。因此,研究浮体式结构阻力系数的变化规律及因素影响机理具... 详细信息

浮体式结构作为一种适合于沿海地区及内河水利枢纽工程建设的新型生态构筑物,当在平原水利防洪工程中运行时,由于浮体的阻挡,导致水流发生分流产生水头损失,进而影响过流能力。因此,研究浮体式结构阻力系数的变化规律及因素影响机理具有现实意义。本文采用物理模型试验,基于水动力学理论分析,利用量纲分析得到影响浮体式结构阻力系数的影响因素有水位变化系数、浮体结构长度与浮体结构位置比值(长位比)、相对阻水面积及雷诺数。对影响因素与阻力系数进行相关性研究及敏感性分析,结果表明:1)水位变化系数的增加,导致结构背水面的位置出现回流区,水流质点的紊动强度增加,阻力系数增大;2)浮体式结构沿水流长度方向及位置的变化,一定程度上并不会引起水流能量的损失,对浮体结构的阻力系数的影响较小;3)相对阻水面积系数的增大会导致水体过水面积减小,水体质点相互摩擦和碰撞消耗水流能量,引起浮体式结构的阻力系数增大;4)在试验的雷诺数范围内(3.5相对阻水面积>雷诺数>长位比。通过基于最小二乘法的多元线性拟合,比较得到描述浮体式结构阻力系数的计算公式,并采用数理统计对公式进行检验和误差分析,该公式在可靠性及精确度方面能够满足工程需要且形式简单、通用性强,可为相关工程提供理论依据。

关键词：浮体式结构阻力系数雷诺数敏感性数理统计