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习近平新时代中国特色社会主义思想青年化阐释的实践进路

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青少年学刊 2024年第4期 3-8页

作者：徐建飞王文静扬州大学马克思主义学院江苏扬州225009

习近平新时代中国特色社会主义思想青年化阐释是要将党的创新理论以符合青年思维方式和认知特点的形式进行通俗化、生动性解读和宣传,激发青年的情感共鸣与思想共振,真正让青年对党的创新理论学懂、弄通、真信。推进习近平新时代中国特... 详细信息

习近平新时代中国特色社会主义思想青年化阐释是要将党的创新理论以符合青年思维方式和认知特点的形式进行通俗化、生动性解读和宣传,激发青年的情感共鸣与思想共振,真正让青年对党的创新理论学懂、弄通、真信。推进习近平新时代中国特色社会主义思想青年化阐释要聚合多元力量,壮大阐释队伍;要开展沉浸式、体验式、网络化学习,拓宽阐释形式;要运用“青年大学习”等平台,丰富阐释载体;要把理论自身的“抽象”特性转化为现实生活“形象”状态,把大道理的宏大叙事转向关注日常问题的生活叙事,把政治话语、学术话语转换为青年话语、大众话语,创新阐释手段。

关键词：习近平新时代中国特色社会主义思想青年化阐释实践进路

国内学界关于邓小平现代化思想研究的进展与趋势分析——基于CiteSpace的文献计量分析与可视化

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楚雄师范学院学报 2024年第4期39卷 18-30页

作者：徐建飞王文静扬州大学马克思主义学院江苏扬州225009

邓小平现代化思想是马克思列宁主义普遍真理与中国特色社会主义现代化建设相结合的时代产物,是中国共产党宝贵的精神财富。邓小平现代思想系统地回答了像中国这样经济文化落后的国家“建设什么样的社会主义现代化”,“如何建设社会主义... 详细信息

邓小平现代化思想是马克思列宁主义普遍真理与中国特色社会主义现代化建设相结合的时代产物,是中国共产党宝贵的精神财富。邓小平现代思想系统地回答了像中国这样经济文化落后的国家“建设什么样的社会主义现代化”,“如何建设社会主义现代化”等一系列基本问题。改革开放以来,关于邓小平现代化思想研究一直是我国理论界关注的焦点和热点,也取得了较为丰硕的研究成果。本文通过对CNKI数据库检索发现,截至2024年4月30日,发表在北大核心以及南大核心(CSSCI)期刊上关于邓小平现代化思想的论文共计308篇,对相关无用文献剔除后共计289篇。本文通过运用可视化软件citespace对相关论文进行计量分析,绘制关键词知识图谱,得出邓小平现代化思想的研究热点、演进进程和前沿趋势。

关键词：邓小平现代化思想研究进展趋势 CiteSpace

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耐磨零部件的电刷镀铬修复

电镀与涂饰 2024年第5期43卷 22-30页

作者：许剑飞喻世臣朱平黄宁王宏锋沈长斌徐常恩黄诗铭大连交通大学辽宁大连116028 沈阳飞机工业(集团)有限公司辽宁沈阳110034 大连华锐重工特种备件制造有限公司辽宁大连116000

[目的]某耐磨镀铬零部件长期依赖进口,在服役过程中会出现磨损、腐蚀等问题,对其进行修复再制造不仅符合绿色制造的理念,更可以大幅降低设备的运维成本,减少材料消耗。[方法]使用电刷镀铬技术对该零部件进行修复,对比了修复件和全新件表... 详细信息

[目的]某耐磨镀铬零部件长期依赖进口,在服役过程中会出现磨损、腐蚀等问题,对其进行修复再制造不仅符合绿色制造的理念,更可以大幅降低设备的运维成本,减少材料消耗。[方法]使用电刷镀铬技术对该零部件进行修复,对比了修复件和全新件表面Cr镀层的微观组织、表面粗糙度、显微硬度、耐磨性及耐蚀性,以探究电刷镀铬修复用于该零件的可行性。[结果]修复件的Cr镀层为光亮的银灰色,其微观形貌、显微硬度、表面粗糙度和耐蚀性都与全新件的Cr镀层相近,耐磨性则更优。[结论]电刷镀铬可用于修复该类零件,本文的研究结果有助于提高相应设备的国产化程度。

关键词：电刷镀铬耐磨零部件修复摩擦磨损显微硬度

Complexity analysis of the Portevin-Le Chatelier in an Al alloy atdifferent tem peratures

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Theoretical & Applied Mechanics Letters 2021年第2期11卷 81-84页

作者： jianfei xu Guoxiong Chen Shihua Fu School of Civil Engineering and Architecture Hainan UniversityHaikou 570228China

The complexity of the Portevin-Le Chatelier(PLC)effect in an Al alloy at different temperatures was ana-lyzed by modified multiscale *** results show that three evolutions of entropy with scale factor,i.e.,near zero,monotonically increasing and peak-shape,were observed corresponding to the smoothcurves,type-A serrations and type-B/-C serrations,*** scale factor at the peak was one-third of the average serration *** sample entropy increased initially and then decreased withtemperature,which was opposite to the critical *** is also suggested that the type-A serrations cor-responded to self-organized criticality and the type-B/-C serrations corresponded to chaos through theevolutions of entropy with scale factor.

关键词： Portevin-Le Chatelier effect Dynamic strain aging Complexity Modified multiscale entropy

Fracture toughness and destructive mechanism of ductile nanoporous metallic glass and its crystal-impregnated nanocomposite

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Science China(Technological Sciences) 2023年第11期66卷 3328-3342页

作者： ZHANG YuHang xu jianfei HU YiQun SU Lei DING SuHang WU WenWang XIA Re Key Laboratory of Hydraulic Machinery Transients(Wuhan University) Ministry of EducationWuhan 430072China Department of Engineering Mechanics School of Naval ArchitectureOcean&Civil EngineeringShanghai Jiao Tong UniversityShanghai 200240China

Nanoporous metallic glasses(NPMGs)and crystalline/amorphous nanocomposites exhibit superior ductility over bulk macroscopic metallic glasses(MGs).Their fracture behaviors remain a mystery due to experimental technical *** this work,the fracture behaviors of pre-cracked NPMGs and crystal-impregnated nanoporous metallic glasses(CINPMGs)are investigated through large-scale molecular dynamics simulations,and the MG and crystal phases are amorphous Cu_(50)Zr_(50)and crystalline B2CuZr,*** toughness is determined by simultaneously considering the surface energy and plastic dissipated *** results confirm the excellent plasticity of both the pre-cracked NPMGs and *** progressive necking and ductile rupture of ligaments are responsible for generating NPMGs with prominent ductility and fracture ***,secondary cracking is also triggered,which can consume energy without extending the major crack,thus further improving fracture *** is also found that the fracture toughness of NPMGs can be improved by increasing the solid fraction of MG,and linear relation between fracture toughness and solid fraction can be *** impregnation effectively inhibits global failure as the crystal phase shields the individual amorphous *** plastic flow characterized by shear bands is observed in CINPMGs,and this homogeneous global deformation is facilitated by the crystalline/amorphous ***,the fracture toughness of CINPMGs is higher than that of the constituent single phases,regardless of the volume fraction of each *** material charts manifest that these two types of materials demonstrate promising potential in the material selection library for advanced structural design.

关键词： nanoporous metals crack fracture toughness nanocomposites metallic glasses

Mechanics and Wave Propagation Characterization of Chiral S-Shaped Auxetic Metastructure

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Acta Mechanica Solida Sinica 2022年第4期35卷 571-586页

作者： Qingsong Zhang Wenjie Hong jianfei xu Yuhang Zhang Suhang Ding Wenwang Wu Re Xia Key Laboratory of Hydraulic Machinery Transients(Wuhan University) Ministry of EducationWuhan430072China School of Naval Architecture Ocean and Civil EngineeringShanghai Jiao Tong UniversityShanghai200240China Institute of Advanced Structure Technology Beijing Institute of TechnologyBeijing100081China Hubei Key Laboratory of Waterjet Theory and New Technology Wuhan UniversityWuhan430072China

Auxetic metastructures have attracted tremendous attention because of their robust multifunctional properties and promising potential industrial *** paper studies the in-plane mechanical behaviors of a chiral S-shaped metastructure subjected to tensile loading in both X-direction and Y-direction and wave propagation properties using the finite element(FE)*** relationships between structural parameters and elastic behaviors are also *** results indicate that the orientation of chiral S-shaped metastructure under tensile loading in the X-direction exhibits higher auxeticity and ***,the band structures and the edge modes of each band gap of the chiral S-shaped metastructure are explored,and the relations between band gap properties and structural parameters are also systematically ***,we explore the wave mitigation of the chiral S-shaped metastructures by regulating the structural ***,the transmission properties of the finite chiral S-shaped periodic metastructures are studied to confirm the results of band gap *** study promotes the engineering application of vibration isolation of chiral structures based on the band gap theory.

关键词： Auxetic metastructures Mechanical properties Band gaps Wave mitigation

Overexpression of galactinol synthase 1 from Solanum commersonii(ScGolS1) confers freezing tolerance in transgenic potato

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Horticultural Plant Journal 2023年第3期9卷 541-552页

作者： Feiyan He jianfei xu Yinqiao Jian Shaoguang Duan Jun Hu Liping Jin Guangcun Li State Key Laboratory of Vegetable Biobreeding/Ministry of Agriculture and Rural Affairs Key Laboratory of Biology and Genetic Improvement of Tuber and Root Crop/Institute of Vegetables and Flowers Chinese Academy of Agricultural SciencesBeijing 100081China

Potato(Solanum tuberosum L.) is the fourth largest food crop in the world. Low temperatures cause serious damage to potato plants every year, and freezing tolerance has become a hot spot in potato research. Galactinol synthase(GolS) is a key enzyme in the synthesis of raffinose family oligosaccharides(RFOs), and plays an important role in the response of plants to abiotic stress. In this study, the ScGolS1 gene from Solanum commersonii was cloned and introduced into the S. tuberosum cultivars 'Atlantic' and 'Desiree' via Agrobacterium-mediated transformation. Phenotyping assays showed that overexpression of ScGolS1 could significantly improve freezing tolerance in transgenic potato *** physiological and biochemical experiments showed that the transgenic lines had lower relative conductivity, malondialdehyde content,and 3,3-diaminobenzidine staining and a higher plant survival rate compared with wild type(WT) under cold stress. Moreover, the C-repeat binding factors(CBF1, CBF2 and CBF3), the downstream cold-responsive genes COR413 and COR47, and the ethylene-responsive factor(ERF)transcription factor genes ERF3, ERF4 and ERF6, which function in the ethylene signaling pathway, were all induced by freezing treatment and expressed at higher levels in the ScGolS1 overexpression lines compared with WT. Besides, the expression of some genes such as MIPS, STS and RS from the RFO metabolic pathway was up-regulated under cold stress, resulting in changes in the content of some soluble sugars. This indicated that ScGolS1 overexpression altered the sugar composition and enhanced freezing tolerance in transgenic potato by inducing the ethylene and CBF signaling pathways. These results provided theoretical support and genetic resources for freezing tolerance breeding in potato.

关键词： Solanum commersonii ScGolS1 Freezing tolerance RFOs ERF CBF

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Horticultural Plant Journal 2022年第3期8卷 369-380页

作者： Yumeng Niu Guangcun Li Yinqiao Jian Shaoguang Duan Ju Liu jianfei xu Liping Jin Institute of Vegetables and Flowers Chinese Academy of Agricultural Sciences/Key Laboratory of Biology and Genetic Improvement of Tuber and Root CropsMinistry of Agriculture and Rural AffairsBeijing 100081China

Early tuberization,a short period from stolon occurrence to tuber formation,is one of the major characteristics of a good early-maturing potato cultivar,while the regulatory mechanism of tuberization time(TT)is still *** this study,two tetraploid cultivars,Zhongshu 3(Z3)and Zhongshu 18(Z18),with short and long TT respectively,were examined to reveal regulatory genes related to TT using RNA sequencing of tissue samples taken during stolon occurrence,stolon swelling and tuber *** analysis showed that the gene expression patterns at the stolon swelling and tuber formation stages were significantly different from those at stolon occurrence in both Z3 and ***,we screened the differentially expressed genes(DEGs)at stolon swelling and tuber formation and compared them to those at stolon occurrence.A total of 3085 DEGs were specifically identified and analyzed according to Gene Ontology and Kyoto Encyclopedia of Genes and Genomes enrichment,and DEGs involved in starch and sucrose metabolism,plant hormone signal transduction and plant circadian clock were significantly *** circadian clock genes were significantly differentially expressed between Z3 and Z18,revealing an important role for the plant circadian pathway in regulating ***,three candidate genes,StGI,StPRR and StEFM involved in circadian regulation and significantly differentially expressed between Z3 and Z18,were discovered and confirmed by *** results provide valuable information for understanding the regulatory mechanisms of potato TT and represent a step toward breeding early-maturing potato cultivars.

关键词： Potato Tuberization time Transcriptome analysis Circadian rhythm genes

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国六排放重型天然气发动机湿度传感器的应用

现代车用动力 2024年第2期 54-56页

作者：吴健柳林徐剑飞孙传雨李礼一汽解放汽车有限公司无锡柴油机厂江苏无锡214026 一汽解放动力总成事业部江苏无锡214026 一汽解放汽车有限公司商用车开发院吉林长春130011

湿度传感器在发动机控制系统中已经得到广泛应用,进气湿度传感器作为国六天然气发动机各种性能的关键电控零部件,对天然气发动机控制系统有重要作用。探讨湿度传感器在天然气发动机上的应用,并在台架上进行验证。结果表明,通过湿度传感... 详细信息

湿度传感器在发动机控制系统中已经得到广泛应用,进气湿度传感器作为国六天然气发动机各种性能的关键电控零部件,对天然气发动机控制系统有重要作用。探讨湿度传感器在天然气发动机上的应用,并在台架上进行验证。结果表明,通过湿度传感器有效地监测进气口的湿度,以便发动机控制器调整燃烧参数,可以使发动机实现良好的经济性和较低的排放。

关键词：国六天然气发动机湿度传感器燃烧参数发动机标定