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Introduction of a New Method for Regulating Laves Phases in Inconel 718 Superalloy during a Laser-Repairing Process

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Engineering 2022年第9期16卷 239-246页

作者： Shang Sui haosheng li Zuo li Xuan Zhao liang Ma Jing Chen State Key Laboratory of Solidification Processing Northwestern Polytechnical UniversityXi’an 710072China Key Laboratory of Metal High Performance Additive Manufacturing and Innovative Design Ministry of Industry and Information TechnologyNorthwestern Polytechnical UniversityXi’an 710072China

The morphology,size,and distribution of Laves phases have important influences on the mechanical properties of laser-repaired Inconel 718(IN718)*** to the deterioration of the substrate zone,the Laves phase in the laser cladding zone of IN718 superalloy cannot be optimized by a hightemperature solution *** this study,an in situ laser heat-treatment method was proposed to regulate the morphology and size of the Laves phase in the laser cladding zone of IN718 superalloy without impacting the substrate *** the in situ laser heat-treatment process,a laser was used to heat previously deposited layers with optimized manufacturing parameters.A thermocouple and an infrared camera were used to analyze thermal cycles and real-time temperature fields,*** and micro-segregations were observed by optical microscopy,scanning electron microscopy,and electron probe *** was found that the in situ laser heat treatment effectively changed the morphology and size of the Laves phase,which was transformed from a continuous striplike shape to a discrete granular *** effective temperature range and duration were the two main factors influencing the Laves phase during the in situ laser heat-treatment *** effective temperature range was determined by the laser linear energy density,and the peak temperature increased with the increase of the linear energy *** addition,the temperature amplitude could be reduced by simultaneously increasing the laser power and the scanning ***,a flow diagram was developed based on the in situ laser heat-treatment process,and the deposition of a single-walled sample with fine and granular Laves phases was detected.

关键词： Laser repair In situ laser heat treatment Inconel 718 alloy Laves phase

Key roles of micro-particles in water on occurrence of cavitation-erosion of hydro-machinery

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Chinese Science Bulletin 2008年第10期53卷 1603-1607页

作者： WANG JiaDao CHEN haosheng QIN li li Yongdian CHEN DaRong State Key Laboratory of Tribology Tsinghua University Beijing 100084 China

It has been believed for about one hundred years that the cavitation directly induces the cavitation erosion. It is proposed in this research that cavitation is only the necessary condition but not the sufficient condition of the cavitation erosion. The experiment performed on the rotary disk cavitation system shows that the micro-particles in the fluid play indispensable roles in the cavitation erosion process, and the generation of the erosion pits on the steel surface is also affected by the particles' size. These cracks and deformations on the sample surface indicate that the erosion is the result of the mechanical behavior. Numerical calculations are also provided to support this mechanism.

关键词：气穴现象侵蚀作用表面粗糙度微粒物

Comparative proteomic analysis of cold responsive proteins in two wheat cultivars with different tolerance to spring radiation frost

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Frontiers of Agricultural Science and Engineering 2014年第1期1卷 30-38页

作者： Shujuan ZHANG Guoqi SONG Yulian li Jie GAO Jiao WANG Guiju CHEN haosheng li Genying li Zhendong ZHAO Crop Research Institute Shandong Academy of Agricultural SciencesKey Laboratory of Wheat Biology&Genetic Improvement on North Yellow&Huai River ValleyMinistry of Agriculture of the People Republic of ChinaNational Engineering Laboratory for Wheat&MaizeJinan 250100China

Spring radiation frost(SRF)is a severe environmental stress which impairs wheat yield and productivity *** better understand the mechanism of wheat(Triticum aestivum)responding to SRF,a comparative proteomic analysis was performed to analyze the changes of the key proteins in two wheat cultivars Jimai22 and Luyuan301 with high and low tolerance to SRF respectively.A total of 43 differentially expressed proteins(DEPs)which mainly involved in carbohydrate metabolism,amino acid metabolism,resistance proteins and antioxidant enzymes,photosynthesis and cellular respiration proteins,cell-wall related proteins,protein translation/processing/degradation and signal transduction were isolated and identified by two-dimensional electrophoresis and MALDI-TOF-TOF *** results revealed that of the 21 DEPs in Jimai22 responding to the SRF,13 DEPs were upregulated and 8 DEPs were downregulated,and that of the 22 DEPs in Luyuan301,9 DEPs were upregulated and 13 DEPs were *** DEPs might be responsible for the stronger cold resistance of Jimai22 compared to *** expression pattern and function analysis of these DEPs were very significant to understanding the mechanism of the SRF responses in wheat.

关键词： common wheat spring radiation frost proteomic analysis 2-DE MALDI-TOF-TOF MS

Lodging resistance and yield potential of winter wheat:effect of planting density and genotype

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Frontiers of Agricultural Science and Engineering 2015年第2期2卷 168-178页

作者： Yonggui XIAO Jianjun liU haosheng li Xinyou CAO Xianchun XIA Zhonghu HE Institute of Crop Science National Wheat Improvement CenterChinese Academy of Agricultural Sciences(CAAS)Beijing 100081China Crop Research Institute Shandong Academy of Agricultural SciencesJinan 250100China International Maize and Wheat Improvement Center(CIMMYT)China Office c/o CAASBeijing 100081China

Improved lodging resistance is important for achieving high yield in irrigated *** study was conducted to determine genotypic variation in lodging resistance and related morphological traits among winter wheat cultivars planted at two densities,and to identify key traits associated with lodging *** performance of 28 genotypes,including 24 released cultivars and four advanced lines,was evaluated at 250 plants per square meter and 500 plants per square meter in Shandong province during the 2008–2009 and 2009–2010 crop *** the higher density,the average grain yield was 2.6%higher,even though lodging score rose by as much as 136%.The higher planting density increased lodging through increased leaf area index(LAI),plant height,center of gravity and length of basal internodes,and reduced grain weight per spike and diameter of the lower two stem ***,center of gravity and diameter of first internodes,as the important indicators for lodging resistance,were significantly correlated with lodging score,with R=0.62,0.59 and–0.52(Pliangxing 66,were recommended as leading cultivars for production as well as elite crossing parents for further increasing yield potential in the Yellow and Huai Valleys Winter Wheat Zone in China.

关键词： common wheat yield potential lodging performance pushing resistance leaf area index

全生育期增温对济麦229生长发育、旗叶和产量的影响

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麦类作物学报 2025年第1期45卷 63-72页

作者：黄金鑫刘百川展晓孟张玉梅郭雷李丹萍刘秀坤刘建军李豪圣赵振东高欣曹新有青岛农业大学农学院山东青岛266109 山东省农业科学院作物研究所/山东省农业科学院/小麦玉米国家工程研究中心/小麦育种全国重点实验室/农业农村部黄淮北部小麦生物学与遗传育种重点实验室/山东省小麦技术创新中心山东济南250100

为探究气候变暖对强筋优质小麦生长发育和产量的影响及机理,以强筋优质小麦济麦229为试验材料,以田间自然温度生长的小麦为对照,研究了全生育期增温对济麦229生长发育、旗叶衰老特性和产量的影响。结果表明,与对照相比较,全生育期增温... 详细信息

为探究气候变暖对强筋优质小麦生长发育和产量的影响及机理,以强筋优质小麦济麦229为试验材料,以田间自然温度生长的小麦为对照,研究了全生育期增温对济麦229生长发育、旗叶衰老特性和产量的影响。结果表明,与对照相比较,全生育期增温使济麦229营养生长阶段的分蘖数、株高、倒一叶面积、叶绿素含量和地上部干物质积累量显著增加,加快了花后旗叶面积和叶绿素含量的降低速度,减少干物质向穗部转运量;增温对济麦229孕穗期和开花期旗叶SOD、POD和CAT活性影响较小,旗叶中MDA和脯氨酸含量较低,但花后旗叶SOD活性显著增加,POD和CAT活性不同程度降低,导致MDA、脯氨酸含量和相对电导率增加;增温使济麦229的穗数和千粒重分别降低了20.3%和10.0%,产量减少了24.1%,对穗粒数的影响不显著。综上,全生育期增温可促进济麦229的营养生长,不利于生殖生长阶段小麦旗叶的光合作用和抗氧化作用,导致旗叶加速衰老和产量降低。

关键词：小麦全生育期增温分蘖旗叶抗氧化产量

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Genetic dissection of the powdery mildew resistance in wheat breeding line LS5082 using BSR-Seq

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The Crop Journal 2022年第4期10卷 1120-1130页

作者： liru Wu Tong Zhu Huagang He Xinyou Cao haosheng li Hongxing Xu Mengshu Jia lipei Zhang Jiancheng Song Ghader Mirzaghaderi Cheng liu Pengtao Ma School of life Sciences Yantai UniversityYantai 264005ShandongChina School of life Sciences Jiangsu UniversityZhenjiang 212013JiangsuChina Crop Research Institute Shandong Academy of Agriculture SciencesJinan 250100ShandongChina State Key Laboratory of Crop Stress Adaptation and Improvement School of Life SciencesHenan UniversityKaifeng 475004HenanChina Yantai Jien Biological Science&Technology Ltd. Yantai 265100ShandongChina Department of Agronomy and Plant Breeding Faculty of AgricultureUniversity of KurdistanP.O.Box 416SanandajIran

Powdery mildew of wheat is a destructive disease seriously threatening yield and quality *** dissection of new resistance-related loci/genes is necessary to control this ***5082 is a Chinese wheat breeding line with resistance to powdery *** analysis,using the populations of LS5082 and three susceptible parents(Shannong 29,Shimai 22 and Huixianhong),indicated that a single dominant gene,tentatively designated PmLS5082,conferred seedling resistance to different Blumeria graminis ***(Bgt)*** segregant RNA-Seq was carried out to map PmLS5082 and to profile differentially expressed genes associated with ***5082 was mapped to a 0.7 cM genetic interval on chromosome arm 2BL,which was aligned to a 0.7 Mb physical interval of 710.3–711.0 ***5082 differs from the known powdery mildew(Pm)resistance genes on chromosome arm 2BL based on their origin,chromosome positions and/or resistance spectrum,suggesting PmLS5082 is most likely a new Pm gene/*** clusters of orthologous groups and kyoto encyclopedia of genes and genomes analyses,differentially expressed genes(DEGs)associated with PmLS5082 were *** DEGs in the PmLS5082 interval were confirmed to be associated with PmLS5082 via qPCR analysis,using an additional set of wheat samples and time-course analysis postinoculation with Bgt isolate *** closely linked markers,including two kompetitive allele-specific PCR markers,were confirmed to be suitable for marker-assisted selection of PmLS5082 in different genetic backgrounds,thus can be used to detect PmLS5082 and pyramid it with other genes in breeding programs.

关键词： Wheat powdery mildew Bulked segregant RNA-seq(BSR-Seq) PmLS5082 Differentially expressed gene(DEG) Marker-assisted selection(MAS)

走出理性主义政治的困境——波普尔与奥克肖特的政治思想对勘

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西南大学学报（社会科学版） 2020年第6期46卷 31-39页

作者：李昊晟广西师范大学政治与公共管理学院广西桂林541004

波普尔与奥克肖特的政治思想集中体现在他们对理性主义政治的批判。理性主义政治有两个根本困境:追求完美理想的乌托邦主义与简化政治实践为技术工程的技术化政治。波普尔持一种批判理性主义观念,试图通过恢复理性的批判传统来拯救理性... 详细信息

波普尔与奥克肖特的政治思想集中体现在他们对理性主义政治的批判。理性主义政治有两个根本困境:追求完美理想的乌托邦主义与简化政治实践为技术工程的技术化政治。波普尔持一种批判理性主义观念,试图通过恢复理性的批判传统来拯救理性主义。进而,他提出逐步社会工程方案,认为政治的道德理想应当是减少当下具体的苦难,而不是追求遥远抽象的幸福。奥克肖特则持一种传统暗示观,认为政治就是在传统中追循暗示,国家应该采取以法治为基础的公民联合模式。由于逐步社会工程仍将政治视作技术活动,而公民联合把政治理解为非工具性的道德实践,后者比前者更能彻底摆脱理性主义政治的困境。这种比较对于所有想在既有传统基础上开拓现代政治文明的国家无疑具有一定的借鉴作用。

关键词：波普尔奥克肖特理性主义政治批判理性主义传统暗示逐步社会工程公民联合对话政治

善待与接纳:对昆山市农民工市民化经验的解读

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人口研究 2008年第6期32卷 59-68页

作者：李浩昇南京师范大学社会发展学院江苏南京210046

肇始于30年前的改革开放进程，在快速推进我国的工业化、城市化、现代化建设的同时，也带来了前所未有，规模宏大的人口流动现象。数以亿计的农民，作为城乡社会变迁的演绎者，离开乡土，寄居城市，在生产上实现了从传统农业到工业及服... 详细信息

肇始于30年前的改革开放进程，在快速推进我国的工业化、城市化、现代化建设的同时，也带来了前所未有，规模宏大的人口流动现象。数以亿计的农民，作为城乡社会变迁的演绎者，离开乡土，寄居城市，在生产上实现了从传统农业到工业及服务业的转变，因而也获得了介于市民和农民之间的第三种社会身份：农民工。处于流动中的农民工在给中国经济腾飞和城市发展作出巨大贡献的同时，

关键词：农民工市民化昆山市解读经验现代化建设改革开放人口流动社会变迁

Field Model for Civic Responsibility in Chinese:the Developmental Diversity and Its Relevant Theoretical Framework

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Field Model for Civic Responsibility in Chinese:the Developm...