检索结果-南通市图书馆

Phyton-International Journal of Experimental Botany 2024年第3期93卷 627-640页

作者： Haoxue Wu Xiaohan Zhang Xiaoyu Chen kang Li Aixia Xu Zhen Huang Jungang Dong Chengyu Yu College of Agronomy Northwest A&F UniversityYangling712100China

Genetic manipulation(either restraint or enhancement)of the biosynthesis pathway ofα-linolenic acid(ALA)in seed oil is an important goal in Brassica napus *** is a tetraploid plant whose genome often har-bors four and six homologous copies,respectively,of the two fatty acid desaturases FAD2 and FAD3,which con-trol the last two steps of ALA biosynthesis during seed oil *** this study,we compared their promoters,coding sequences,and expression levels in three high-ALA inbred lines 2006L,R8Q10,and YH25005,a low-ALA line A28,a low-ALA/high-oleic-acid accession SW,and the wildtype *** expression levels of most FAD2 and FAD3 homologs in the three high-ALA accessions were higher than those in ZS11 and much higher than those in A28 and *** three high-ALA accessions shared similar sequences with the pro-moters and CDSs of BnFAD3.C4 and *** A28 and SW,substitution of three amino acid residues in BnFAD2.A5 and BnFAD2.C5,an absence of BnFAD2.C1 locus,and a 549 bp long deletion on the BnFAD3.A3 promoter were *** proﬁle of BnFAD2 mutation in the two low-ALA accessions A28 and SW is different from that reported in previous *** mutations in BnFAD3 in the high-ALA accessions are reported for theﬁrst *** identifying the sites of these mutations,we provide detailed information to aid the design of mole-cular markers for accelerated breeding schemes.

关键词： Brassica napus linolenic acid FAD2 FAD3 promoter coding sequences mutation

数字经济、产业智能化与不同技能劳动力间的收入差距

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

系统管理学报 2024年第2期33卷 472-487页

作者：潘馨悦王乐张紫琼李忠平西安交通大学经济与金融学院西安710061 四川数字经济产业发展研究院成都610081 哈尔滨工业大学经济与管理学院哈尔滨150001

数字经济发展对收入差距的影响事关包容性增长的整体实现。使用2010~2020年个体与省级层面相结合的面板数据,采用双向固定效应模型检验数字经济发展水平对低中技能劳动力与高技能劳动力间收入差距的作用和机制。研究表明:数字经济发展... 详细信息

数字经济发展对收入差距的影响事关包容性增长的整体实现。使用2010~2020年个体与省级层面相结合的面板数据,采用双向固定效应模型检验数字经济发展水平对低中技能劳动力与高技能劳动力间收入差距的作用和机制。研究表明:数字经济发展水平的提高拉大了低中技能劳动力与高技能劳动力间的收入差距,且产业智能化在这一过程中发挥了中介作用。异质性分析表明:在中国东部地区、非农业户口劳动力群体中,数字经济对收入差距的拉大作用均得以增强;在中国中西部地区、农业户口劳动力群体中,数字经济对收入差距的作用分别为缩小和无显著影响。同时,数字经济发展前期对低中技能劳动力与高技能劳动力间的收入差距无明显作用,但后期扩大收入差距的作用逐渐显现。研究结论拓展了数字经济与收入差距相关的研究,为政府制定相应政策提供了可操作性建议,有助于为后期数字经济推动包容性增长蓄力。

关键词：数字经济收入差距产业智能化技能水平

A chromosome-level genome assembly for Chinese plum‘Wushancuili'reveals the molecular basis of its fruit color and susceptibility to rain-cracking

在线全文

学校读者我要写书评

暂无评论

Horticultural Plant Journal 2024年第3期10卷 672-688页

作者： Kun Zhou Jingwen Wang Lin pan Fang Xiang Yi Zhou Wei Xiong Ming Zeng Donald Grierson Wenbin Kong Lingyu Hu Wanpeng Xi College of Horticulture and Landscape Architecture Southwest UniversityChongqing 400715China Key Laboratory of Agricultural Biosafety and Green Production of Upper Yangtze River(Ministry of Education) Southwest UniversityChongqing 400715China Department of Pomology Chongqing Agricultural Technology Extension StationChongqing 401420China Plant and Crop Sciences Division School of BiosciencesUniversity of NottinghamSutton Bonington CampusLoughborough LE125RDUK Wuxi Economical Crop Technology Extension Station Chongqing 405800China

Chinese plum(Prunus salicina Lindl.)originates from China and makes a large contribution to the global production of *** ***‘Wushancuili'has a green coloration and high fruit quality and is economically important in eliminating poverty and protecting ecology in the Yangtze River Three Gorges ***,rain-induced cracking(rain-cracking,literally skin cracking caused by rain)is a limitation to‘Wushancuili'fruit production and causes severe *** study reported a high-quality‘Wushancuili'genome assembly consisting of a 302.17-Mb sequence with eight pseudo-chromosomes and a contig N50 of 23.59 Mb through the combination of Illumina sequencing,Pacific Biosciences HiFiⅢsequencing,and high-throughput chromosome conformation capture technology.A total of 25109 protein-coding genes are predicted and 54.17%of the genome is composed of repetitive sequences.‘Wushancuili'underwent a remarkable orthoselection during *** identification revealed that loss-of-function in four core MYB10 genes results in the anthocyanin deficiency and absence of red color,revealing the green coloration due to the residual high chlorophyll in fruit ***,the occurrence of cracking is assumed to be closely associated with cell wall modification and frequently rain-induced pathogen enrichment through transcriptomic *** loss of MYB10 genes might render fruit more susceptible to pathogen-mediated cracking by weakening the epidermal strength and reactive oxygen species(ROS)*** findings provided fundamental knowledge regarding fruit coloration and rain-cracking and will facilitate genetic improvement and cultivation management in Chinese plums.

关键词： Chinese plum Fruit coloration Fruit epidermis Genome MYB10 Rain-cracking

江苏常熟地区汉族人群47个微单倍型的遗传多态性及遗传结构分析

在线全文

学校读者我要写书评

暂无评论

生物化学与生物物理进展 2024年第2期51卷 423-434页

作者：潘坤鹏冯耀森于文帅刘宗伟姚伊人赵杰康克莱张驰王乐吴坚昆明医科大学法医学院昆明650500 公安部鉴定中心法医遗传学公安部重点实验室现场物证溯源技术国家工程实验室北京100038 中国人民公安大学侦查学院北京100038 江苏省常熟市公安局常熟215500

目的探索江苏常熟地区汉族人群在47个常染色体微单倍型基因座的遗传多态性,评估应用效能及法庭科学参数。方法采用MHSeqTyper47混合DNA鉴定试剂盒进行基因座复合扩增及文库构建,使用MiSeq FGx测序平台进行测序,测得的数据应用MHTyper数... 详细信息

目的探索江苏常熟地区汉族人群在47个常染色体微单倍型基因座的遗传多态性,评估应用效能及法庭科学参数。方法采用MHSeqTyper47混合DNA鉴定试剂盒进行基因座复合扩增及文库构建,使用MiSeq FGx测序平台进行测序,测得的数据应用MHTyper数据分析软件进行分析,对获得的样本遗传信息进行评估,结合千人基因组数据(1000 Genomes Project phase 3,1KG)评估群体间遗传分化指数及遗传距离,并计算法庭科学参数。结果江苏常熟地区汉族人群与1KG中的中国北京群体的遗传分化和遗传距离最小,并得到最接近的有效等位基因数(Ae),累积随机匹配概率(combined matching probability,CMP)与1KG中东亚参考人群的5个群体均接近,为1.25×10^(-36),累积非父排除概率达0.9999999999641。结论本研究报告了47个微单倍型基因座在江苏常熟地区汉族人群中的等位基因频率及遗传多态性信息,为47个微单倍型在法医学应用中提供了数据基础。另外,比较了1KG参考人群与江苏常熟地区汉族人群的多态性差异,并揭示了47个微单倍型在江苏常熟地区汉族人群中的遗传结构。总的来说,1KG中的东亚人群参考数据更符合江苏常熟地区汉族人群的遗传特征。

关键词：法医遗传学微单倍型二代测序

Π型叠合梁斜拉桥涡激振动性能及气动措施研究

在线全文

学校读者我要写书评

暂无评论

振动工程学报 2024年第5期37卷 830-837页

作者：蒋尚君朱金鲁胜龙李永乐康锐西南交通大学土木工程学院桥梁工程系四川成都610031

型叠合梁为气动钝体结构,容易发生气动失稳。本文以一座Π型截面叠合梁斜拉桥作为工程背景,采用风洞节段模型试验与计算流体动力学(CFD)方法,对主梁的涡激振动性能及相应的气动抑振措施展开了研究。在风洞节段模型试验中获得涡激振动风... 详细信息

型叠合梁为气动钝体结构,容易发生气动失稳。本文以一座Π型截面叠合梁斜拉桥作为工程背景,采用风洞节段模型试验与计算流体动力学(CFD)方法,对主梁的涡激振动性能及相应的气动抑振措施展开了研究。在风洞节段模型试验中获得涡激振动风速区间,讨论了不同气动措施的抑振效果,运用计算流体动力学(CFD)方法对主梁涡振发生机理及气动措施抑振机理进行了初步研究。结果表明:在原始断面下,由于尾迹区旋涡的周期性脱落以及主梁上、下表面旋涡演变的相互作用,导致了涡激振动发生。在采取三种不同抑振措施后,除采用上L型导流板断面在+3°风攻角下发生扭转涡振外,其余优化断面均能使得来流平稳地通过,从而抑制涡振发生。本研究可对Π型叠合梁断面的斜拉桥抗风设计提供一定参考。

关键词：涡激振动抑振措施叠合梁风洞试验计算流体动力学(CFD)

基于SKS分裂研究长白山区上地幔各向异性特征

同方期刊数据库博看期刊评论

在线全文

学校读者我要写书评

暂无评论

地质论评 2024年第S1期70卷 129-130页

作者：宋雨佳盘晓东康建红吉林省地震局吉林长白山火山国家野外科学观测研究站长春130117 中国地震局火山研究所长春130117

长白山火山区是中国最大的新生代火山区,位于东北走向的敦化—密山断裂、鸭绿江断裂、图们江断裂和西北走向的白山—金策断裂系统的交汇处,其内部变形特征复杂多变。地震各向异性是了解壳幔变形的有效方法之一,聚焦该火山区研究上地幔... 详细信息

长白山火山区是中国最大的新生代火山区,位于东北走向的敦化—密山断裂、鸭绿江断裂、图们江断裂和西北走向的白山—金策断裂系统的交汇处,其内部变形特征复杂多变。地震各向异性是了解壳幔变形的有效方法之一,聚焦该火山区研究上地幔各向异性特征及变形演化,将有助于理解长白山区深部地幔动力学过程,为地震与火山灾害预警提供理论支持(刘嘉麒等,2022)。

关键词：长白山地震各向异性上地幔变形

Graphitic carbons:preparation,characterization,and application on K-ion batteries

在线全文

学校读者我要写书评

暂无评论

Rare Metals 2024年第9期43卷 4056-4075页

作者： kang-Zhe Cao Jia-Hui Ma Yu-Lian Dong Yu Duan Run-Tian Zheng Dharani Bundhooa Hui-Qiao Liu Yong lei College of Chemistry and Chemical Engineering Xinyang Normal UniversityXinyang 464000China Xinyang Key Laboratory of Low-Carbon Energy Materials Xinyang 464000China Fachgebiet Angewandte Nanophysik Institut fur Physik&IMN MacroNanoTechnische Universitat Ilmenau98693 IlmenauGermany Laboratory of Inorganic Materials Chemistry(CMI) University of NamurB-5000 NamurBelgium

K-ion batteries(KIBs)have drawn much attention due to the abundant potassium reserves and wide accessibility as well as high energy density,which can be designed for large-scale energy storage *** the most promising anode materials for KIBs,graphitic carbons,especially those with an intermediate structure between the crystalline graphite and amorphous carbons become a hot research focus because of the improved rate capability and enhanced diffusion-controlled capacity at low voltage ***,we first review the structures of graphitic carbons in the view of graphitic domains and the structure changes in their K-ion intercalation ***,we summarize the preparation mechanisms and characterizations of graphitic carbons and the influence factors in their degree of ***,we illustrate the strategies to optimize their K-ion storage properties from four aspects,namely graphitic domain design,microstructure engineering,electrochemical active component regulation,and defect ***,we propose the issues that urgently need to be solved in graphitic carbons and the possible *** hope that this view could offer some inspiration for the further designing and optimizing of graphitic carbons for practical KIBs.

关键词： Graphitic carbon K-ion battery Anode Graphite Structure design

Regulator of G protein signaling 20 contributes to radioresistance of non-small cell lung cancer cells by suppressing pyroptosis

在线全文

学校读者我要写书评

暂无评论

Radiation Medicine and Protection 2024年第3期5卷 178-184页

作者： Jialing Zhang Zhaoyan Jiang Xinglong Liu Xiaoya Jin Yan pan Yang Bai Jianghong Zhang Chunlin Shao Institute of Radiation Medicine Shanghai Medical CollegeFudan UniversityShanghai200032China

Objective:To investigate the potential role of the regulator of G protein signaling 20(RGS20)in radioresistance of non-small cell lung cancer(NSCLC).Methods:A total of 35 lung adenocarcinoma(LUAD)patients from The Cancer Genome Atlas(TCGA),who un-derwent radiotherapy,were enrolled and divided into radiosensitive(n=16)and radioresistant(n=19)groups based on clinical *** expression and prognosis of RGS20 were analyzed by Gene Expression Profiling Interactive Analysis(GEPIA)database.A radioresistant cell line(A549R)was constructed by irradiating A549 cells with 6 Gy X-rays for 10 *** survival was measured by colony formation *** regulatory effect of RGS20 on pyroptosis were verified by LDH release and Western blot assay,and the underlying mech-anism was investigated by transfecting RGS20 siRNA and applying a GSDMD ***:A total of 2,181 differentially expressed genes(DEGs)were identified by analyzing the data of radio-sensitive and radioresistant individuals from the TCGA-LUAD *** DEGs were enriched in G alpha(z)signalling events analyzed by Reactome ***20 exhibited significant upregulation among the DEGs,and its higher expression predicted poor prognosis in LUAD *** vitro,the expression of RGS20 protein was increased by irradiation in A549 cells,whereas it remained at much high levels in A549R cells regardless of *** irradiation,the expressions of pyroptosis-related proteins were significantly increased in A549 cells(Please(Please(Ple LDC7559 administration reversed LDH release(Ple

关键词： NSCLC Radioresistance RGS20 Pyroptosis

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

多场耦合原位拉伸中子衍射实验装置综述

强激光与粒子束 2024年第10期36卷 106-116页

作者：郑海彪康乐陈洁张雪凯中国科学院高能物理研究所北京100049 中国科学院大学北京100049 散裂中子源科学中心广东东莞523803

极端环境服役材料的研发一直是航空航天等国家战略发展的“瓶颈”,不同环境因素会影响材料的性能。中子由于其强穿透性、轻元素敏感等特点,可与同步辐射技术互为补充,运用原位装置还原材料在真实工况条件下的受力变形过程,并利用中子探... 详细信息

极端环境服役材料的研发一直是航空航天等国家战略发展的“瓶颈”,不同环境因素会影响材料的性能。中子由于其强穿透性、轻元素敏感等特点,可与同步辐射技术互为补充,运用原位装置还原材料在真实工况条件下的受力变形过程,并利用中子探针原位观察材料在服役条件下晶格应变、织构、相变和残余应力的演化。多个国家的中子谱仪均配备了不同的原位拉伸装置,实现在不同的加载环境下对样品进行原位应力加载,对样品材料的微观结构进行测试分析,能够解决材料工程领域的重要科学机理问题,进而推动材料的发展应用。介绍了国内外不同中子源谱仪原位拉伸装置的情况,重点阐述了应用于中子衍射技术的多场耦合原位拉伸装置的设计原理与结构特点,凸显了工程材料研究的发展方向。

关键词：中子衍射中子源多场耦合原位拉伸谱仪

混合动力推进系统与飞机数字化设计现状与展望

在线全文

学校读者我要写书评

暂无评论

推进技术 2024年第3期45卷 84-100页

作者：康乐冉千禧毛军逵余之圳韩枫南京航空航天大学能源与动力学院江苏南京210016 南京航空航天大学综合能源研究院江苏南京210016 南京航空航天大学江苏省航空动力系统重点实验室江苏南京210016

本文总结了国内外针对混合动力推进系统及飞机发展专门开发的数字化设计工具,归纳了其相应设计方法及特点。综合来看,为了满足混合动力飞机的设计需求,集成高精度电系统和热能管理系统模型,建立针对性的性能评估体系、飞机与发动机设计... 详细信息

本文总结了国内外针对混合动力推进系统及飞机发展专门开发的数字化设计工具,归纳了其相应设计方法及特点。综合来看,为了满足混合动力飞机的设计需求,集成高精度电系统和热能管理系统模型,建立针对性的性能评估体系、飞机与发动机设计的数据耦合交互、研究设计与安全性分析相统一的建模方法、基于人工智能方法提高优化设计管理能力是目前面向其特点的关键发展方向,并为其后续的实验验证、适航条例制定等工程应用提供重要的技术支撑和设计依据。

关键词：混合动力推进系统设计混合动力飞机设计多学科优化设计混合动力评价体系综述