检索结果-南通市图书馆

A major quantitative trait locus controlling phosphorus utilization efficiency under different phytate-P conditions at vegetative stage in barley

引用

Journal of Integrative Agriculture 2018年第2期17卷 285-295页

作者： gao shang-qing CHEN Guang-deng HU De-yi ZHANG Xi-zhou LI Ting-xuan LIU Shi-hang LIU Chun-ji College of Resources Sichuan Agricultural University Chengdu 611130 P.R. China Triticeae Research Institute Sichuan Agricultural University Chengdu 611130 P.R. China Commonwealth Scientific and Industrial Research Organization (CSIRO) Agriculture Flagship St Lucia Queensland 4067 Australia

Organic phosphorus（P） is an important component of the soil P pool, and it has been proven to be a potential source of P for plants. The phosphorus utilization efficiency（PUE） and PUE related traits（tiller number（TN）, shoot dry weight（DW）, and root dry weight） under different phytate-P conditions（low phytate-P, 0.05 mmol L^-1 and normal phytate-P, 0.5 mmol L^-1） were investigated using a population consisting of 128 recombinant inbred lines（RILs） at the vegetative stage in barley. The population was derived from a cross between a P-inefficient genotype（Baudin） and a P-efficient genotype（CN4027, a Hordeum spontaneum accession）. A major locus（designated ***-3 H） conferring PUE was detected in shoots and roots from the RIL population. The quantitative trait locus（QTL） was mapped on chromosome 3 H and the allele from CN4027 confers high PUE. This locus explained up to 30.3 and 28.4% of the phenotypic variance in shoots under low and normal phytate-P conditions, respectively. It also explains 28.3 and 30.7% of the phenotypic variation in root under the low and normal phytate-P conditions, respectively. Results from this study also showed that TN was not correlated with PUE, and a QTL controlling TN was detected on chromosome 5 H. However, dry weight（DW） was significantly and positively correlated with PUE, and a QTL controlling DW was detected near the ***-3 H locus. Based on a covariance analysis, existing data indicated that, although DW may affect PUE, different genes at this locus are likely involved in controlling these two traits.

关键词： barley phosphorus utilization efficiency quantitative trait locus recombinant inbred line phytate-P

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Analysis of vegetation dynamics and driving forces in Ordos: 2000-2019

引用

Ecological Economy 2020年第3期16卷 162-175页

作者： ZHAO Chuan-wu YAN Yue-guan GUO Wei gao shang-qing College of Geoscience and Surveying Engineering China University of Mining and TechnologyBeijing 100083CHINA Graduate School of Education Beijing Foreign Studies UniversityBeijing 100089CHINA

As a typical resource-based city,Ordos has a rapid economic *** studies mostly focused on vegetation changes monitoring,and rarely discuss socioeconomic impacts on vegetation *** on MOD13Q1 data,climate data and 11 socioeconomic indicators from 2000 to 2019,combined with GIS technology and statistical methods,the spatiotemporal changes of Ordos vegetation and its influencing factors were *** results show that:(1)In the past 20 years,the NDVI value of Ordos ranged from 0.233 to 0.395,showing a fluctuating growth trend with a growth rate of 0.058/10a;the NDVI values of the eight counties under its jurisdiction also showed a fluctuating growth trend,but there were differences among regions.(2)Spatially,the vegetation in Ordos is high in the northeast and low in the *** area of low vegetation area is 54200 km2,accounting for 62.39%of the total area of *** area of high vegetation area is only 19900 km2,mainly concentrated in the Yellow River impact area in the north of Dalate Banner.(3)In terms of spatial changes,the area of the vegetation improvement area is much larger than that of the vegetation degradation area,accounting for 52.38%of the total area of ordos,while the vegetation degradation area only accounts for 4.10%.(4)NDVI value showed a significant positive correlation with rainfall,the correlation coefficient is 0.802(P0.05);the correlation coefficient with sunshine hours and humidity is negative;the correlation coefficient between the change of NDVI and the accumulated rainfall in the month is larger,and the correlation coefficient with the temperature of one month ago is larger.(5)The NDVI change was extremely significantly positively correlated with the 11 socioeconomic indicators,with a correlation of 0.728-0.796(P<0.01).From 2000 to 2019,the restoration effect of Ordos vegetation was *** and temperature are the main factors affecting

关键词： ordos NDVI climate factors lag effect economic indicators

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

申家峪尾矿坝地震动力反应分析与研究

引用

中国矿业 2016年第9期25卷 166-170页

作者：高尚青国家安全生产监督管理总局信息研究院北京100029

申家峪尾矿库为坝高138m的二等库,由于筑坝工艺改为干堆使坝体结构发生变化,应对坝体的抗震稳定性进行计算和分析。研究工作根据库区工程地质环境、坝体土体物理力学特性,以主坝轴线为剖面建立几何模型,采用时域上的Wilson-θ逐步积分法... 详细信息

申家峪尾矿库为坝高138m的二等库,由于筑坝工艺改为干堆使坝体结构发生变化,应对坝体的抗震稳定性进行计算和分析。研究工作根据库区工程地质环境、坝体土体物理力学特性,以主坝轴线为剖面建立几何模型,采用时域上的Wilson-θ逐步积分法,按照等价线性法对尾矿库坝体进行动力分析,得到了动力状态下坝内地震速度、地震加速度、地震位移、主应力、剪切应力及应变、超空隙水压分布及坝体自振频率,并结合计算结果对尾矿坝在动力状态下的稳定性进行了分析。研究分析表明,在加载EL Centro地震波的情况下,干堆筑坝方式的实施使坝体的抗震稳定性提高,有利于尾矿库的安全运行。

关键词：尾矿坝地震波动力计算时程法

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

煤层自燃火区温度检测技术的研究与应用

引用

中国安全科学学报 2004年第10期14卷 109-112页

作者：邬剑明高尚青太原理工大学矿业学院资源开发与安全工程系

在煤矿自燃火区的治理过程中 ,同位素测氡法探测煤层自燃火源精确位置是火区治理的关键技术 ,而火区温度信息的采集为灭火方案及灭火参数提供可靠依据。笔者介绍了综合利用火源位置精确探测技术与火区温度探测技术的方法 ,为煤矿火区的... 详细信息

在煤矿自燃火区的治理过程中 ,同位素测氡法探测煤层自燃火源精确位置是火区治理的关键技术 ,而火区温度信息的采集为灭火方案及灭火参数提供可靠依据。笔者介绍了综合利用火源位置精确探测技术与火区温度探测技术的方法 ,为煤矿火区的预测预报提供了可靠的手段 ,节省大量的防灭火资金 ,提高防灭火工作效率。

关键词：火区治理煤层自燃防灭火火源位置煤矿自燃灭火方案同位素测氡法技术资金信息

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

从《诗经》中看周代妇女的爱情婚姻观

引用

广播电视大学学报（哲学社会科学版） 2005年第3期 28-29,32页

作者：高尚卿内蒙古商贸职业学院内蒙古呼和浩特010010

《诗经》中有大量的关于描写爱情和婚姻的诗歌,这些诗歌从不同的角度反映了周代妇女对恋爱自由、大胆、坦诚的态度,也表现了她们对婚姻的坚定、纯朴与始终不渝的思想感情。通过对她们的爱情、婚姻观的分析,使我们看到了《诗经》不仅是... 详细信息

《诗经》中有大量的关于描写爱情和婚姻的诗歌,这些诗歌从不同的角度反映了周代妇女对恋爱自由、大胆、坦诚的态度,也表现了她们对婚姻的坚定、纯朴与始终不渝的思想感情。通过对她们的爱情、婚姻观的分析,使我们看到了《诗经》不仅是优秀的民族文学遗产,而且具有很高的民俗价值,值得我们认真地探讨和研究。

关键词：《诗经》妇女恋爱观婚姻观

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

八股文今辨

引用

广播电视大学学报（哲学社会科学版） 2006年第1期 52-54页

作者：高尚卿内蒙古商贸职业学院内蒙古呼和浩特010010

八股文是明清科举考试制度所规定的一种文体。几百年来,被人们认为是束缚人们的思想、维护封建统治的工具。笔者对此思考有三:其一,八股文迎合了当时社会选拔人才的需要。其二,八股文为后人的作文奠定了一个基础。其三,八股文继承和发... 详细信息

八股文是明清科举考试制度所规定的一种文体。几百年来,被人们认为是束缚人们的思想、维护封建统治的工具。笔者对此思考有三:其一,八股文迎合了当时社会选拔人才的需要。其二,八股文为后人的作文奠定了一个基础。其三,八股文继承和发挥了汉语言的优长。

关键词：八股文时文制艺四书文

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

玲珑金矿尾矿坝Duncan-Chang非线性静力计算分析

引用

中国矿业 2009年第4期18卷 102-106页

作者：高尚青苗胜军李长洪北京科技大学土木与环境工程学院北京100083

介绍了利用Duncan-Chang双曲线E-模型,对尾矿坝初始静力状态进行非线性计算分析的基本原理和计算过程。根据工程地质环境、土体物理力学特性,以主坝中心为剖面建立几何模型。采用GeoStudio软件Duncan-Chang双曲线E-模型,对玲珑金矿尾矿... 详细信息

介绍了利用Duncan-Chang双曲线E-模型,对尾矿坝初始静力状态进行非线性计算分析的基本原理和计算过程。根据工程地质环境、土体物理力学特性,以主坝中心为剖面建立几何模型。采用GeoStudio软件Duncan-Chang双曲线E-模型,对玲珑金矿尾矿坝进行了非线性静力计算,得到了静力状态下坝内最大主应力、最小主应力、水平和垂直位移、应力水平、最大剪应力和剪应变、最大XY方向剪应力和剪应变,并结合计算结果,对玲珑金矿尾矿坝静力状态稳定性进行了细致分析。

关键词：尾矿坝非线性静力计算 Duncan-Chang双曲线模型

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

The complex roles of m^(6)A modifications in neural stem cell proliferation, differentiation, and self-renewal and implications for memory and neurodegenerative diseases

引用

Neural Regeneration Research 2025年第6期20卷 1582-1598页

作者： Yanxi Li Jing Xue Yuejia Ma Ke Ye Xue Zhao Fangliang Ge Feifei Zheng Lulu Liu Xu gao Dayong Wang qing Xia Department of Biochemistry and Molecular Biology College of Basic Medical SciencesHarbin Medical UniversityHarbinHeilongjiang ProvinceChina College of Basic Medical Sciences Harbin Medical UniversityHarbinHeilongjiang ProvinceChina Basic Medical Institute Heilongjiang Academy of Medical SciencesHarbinHeilongjiang ProvinceChina Key Laboratory of Heilongjiang Province for Genetically Modified Animals Harbin Medical UniversityHarbinHeilongjiang ProvinceChina Translational Medicine Research and Cooperation Center of Northern China Heilongjiang Academy of Medical SciencesHarbinHeilongjiang ProvinceChina Dongzhimen Hospital Beijing University of Chinese MedicineBeijingChina

N6-methyladenosine(m^(6)A), the most prevalent and conserved RNA modification in eukaryotic cells, profoundly influences virtually all aspects of mRNA metabolism. mRNA plays crucial roles in neural stem cell genesis and neural regeneration, where it is highly concentrated and actively involved in these processes. Changes in m^(6)A modification levels and the expression levels of related enzymatic proteins can lead to neurological dysfunction and contribute to the development of neurological diseases. Furthermore, the proliferation and differentiation of neural stem cells, as well as nerve regeneration, are intimately linked to memory function and neurodegenerative diseases. This paper presents a comprehensive review of the roles of m^(6)A in neural stem cell proliferation, differentiation, and self-renewal, as well as its implications in memory and neurodegenerative diseases. m^(6)A has demonstrated divergent effects on the proliferation and differentiation of neural stem cells. These observed contradictions may arise from the time-specific nature of m^(6)A and its differential impact on neural stem cells across various stages of development. Similarly, the diverse effects of m^(6)A on distinct types of memory could be attributed to the involvement of specific brain regions in memory formation and recall. Inconsistencies in m^(6)A levels across different models of neurodegenerative disease, particularly Alzheimer's disease and Parkinson's disease, suggest that these disparities are linked to variations in the affected brain regions. Notably, the opposing changes in m^(6)A levels observed in Parkinson's disease models exposed to manganese compared to normal Parkinson's disease models further underscore the complexity of m^(6)A's role in neurodegenerative processes. The roles of m^(6)A in neural stem cell proliferation, differentiation, and self-renewal, and its implications in memory and neurodegenerative diseases, appear contradictory. These inconsistencies may be a

关键词： Alzheimer's disease cell self-renewal central nervous system memory microglia nerve regeneration neurodegenerative diseases neurogenesis RNA methylation

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

矿用智能化钻孔测温仪的开发与研制

引用

太原理工大学学报 2005年第4期36卷 447-450页

作者：高尚青邬剑明李兴伟李春畴孟庆政太原理工大学矿业学院山西太原030024 太原航空仪表厂山西太原030006

根据温度传感器的相关理论,结合煤矿防灭火工作中的实际要求,研究开发了智能矿用防灭火钻孔测温仪。仪器设计以单片机智能控制测温为基本原理,采用高精度铂电阻作为温度传感器,具有连续实时测温监控、信号损耗小等特性。经现场使用,达... 详细信息

根据温度传感器的相关理论,结合煤矿防灭火工作中的实际要求,研究开发了智能矿用防灭火钻孔测温仪。仪器设计以单片机智能控制测温为基本原理,采用高精度铂电阻作为温度传感器,具有连续实时测温监控、信号损耗小等特性。经现场使用,达到良好的效果,具有重要的推广价值。

关键词：防灭火技术温度测氡传感器

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Review of precipitation strengthening in ultrahigh-strength martensitic steel

引用

International Journal of Minerals,Metallurgy and Materials 2025年第2期32卷 256-269页

作者： Zhihao Tian Chunlei shang Chaolei Zhang Xiaoye Zhou Honghui Wu Shuize Wang Guilin Wu Junheng gao Jiaming Zhu Xinping Mao Institute for Carbon Neutrality University of Science and Technology BeijingBeijing 100083China Institute of Steel Sustainable Technology Liaoning Academy of MaterialsShenyang 110004China Department of Materials Science and Engineering Shenzhen MSU-BIT UniversityShenzhen 518172China Institute of Materials Intelligent Technology Liaoning Academy of MaterialsShenyang 110004China School of Civil Engineering Shandong UniversityJinan 250061China

Martensite is an important microstructure in ultrahigh-strength steels,and enhancing the strength of martensitic steels often involves the introduction of precipitated phases within the martensitic *** considerable research efforts devoted to this area,a systematic summary of these advancements is *** review focuses on the precipitates prevalent in ultrahigh-strength martensitic steel,primarily carbides(e.g.,MC,M_(2)C,and M_(3)C)and intermetallic compounds(e.g.,Ni Al,Ni_(3)X,and Fe_(2)Mo).The precipitation-strengthening effect of these precipitates on ultrahigh-strength martensitic steel is discussed from the aspects of heat treatment processes,microstructure of precipitate-strengthened martensite matrix,and mechanical ***,a perspective on the development of precipitation-strengthened martensitic steel is presented to contribute to the advancement of ultrahigh-strength martensitic *** review highlights significant findings,ongoing challenges,and opportunities in the development of ultrahigh-strength martensitic steel.

关键词： ultrahigh-strength martensitic steel precipitation strengthening mechanical property carbide intermetallic compound

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：