检索结果-南通市图书馆

在线全文

学校读者我要写书评

暂无评论

敦煌舞教学创新发展初探

北京舞蹈学院学报 2020年第4期 118-122页

作者：赵乔北京舞蹈学院中国古典舞系北京100081

敦煌舞教学体系历经四十年发展至今,当前,在传统文化创造性转化、创新性发展的背景下,敦煌舞教学未来发展路径值得继续深挖。通过研究敦煌舞教学体系创建的历史沿革与发展,探索"静态舞姿动态化",阐述精品课《敦煌舞风格课》的审美风格... 详细信息

敦煌舞教学体系历经四十年发展至今,当前,在传统文化创造性转化、创新性发展的背景下,敦煌舞教学未来发展路径值得继续深挖。通过研究敦煌舞教学体系创建的历史沿革与发展,探索"静态舞姿动态化",阐述精品课《敦煌舞风格课》的审美风格与教学内容。

关键词：敦煌舞静态舞姿动态化审美风格教学内容

The light and hypoxia induced gene ZmPORB1 determines tocopherol content in the maize kernel

在线全文

学校读者我要写书评

暂无评论

Science China(Life Sciences) 2024年第3期67卷 435-448页

作者： Nannan Liu Yuanhao Du Shijuan Yan Wei Chen Min Deng Shutu Xu Hong Wang Wei Zhan Wenjie Huang Yan Yin Xiaohong Yang qiao zhao Alisdair R.Fernie Jianbing Yan National Key Laboratory of Crop Genetic Improvement Huazhong Agricultural UniversityWuhan 430070China Hubei Hongshan Laboratory Wuhan 430070China Agro-biological Gene Research Center Guangdong Academy of Agricultural SciencesGuangzhou 510640China College of Agronomy Hunan Agricultural UniversityChangsha 410128China College of Agronomy Northwest A&F UniversityXi'an 710000China State Key Laboratory of North China Crop Improvement and Regulation Hebei Sub-center of National Maize Improvement Center of ChinaCollege of AgronomyHebei Agricultural UniversityBaoding 071001China College of Life Sciences South-Central Minzu UniversityWuhan 430070China Plant Science Facility of the Institute of Botany Chinese Academy of SciencesBeijing 100093China National Maize Improvement Center of China Beijing Key Laboratory of Crop Genetic ImprovementChina Agricultural UniversityBeijing 100093China Shenzhen Key Laboratory of Synthetic Genomics Guangdong Provincial Key Laboratory of Synthetic GenomicsShenzhen Institute of Synthetic BiologyShenzhen Institute of Advanced TechnologyChinese Academy of SciencesShenzhen 518055China Max Planck Institute of Molecular Plant Physiology Potsdam-Golm 14476Germany

Tocopherol is an important lipid-soluble antioxidant beneficial for both human health and plant growth. Here, we fine mapped a major QTLqVE1 affecting γ-tocopherol content in maize kernel, positionally cloned and confirmed the underlying gene ZmPORB1(por1), as a protochlorophyllide oxidoreductase. A 13.7 kb insertion reduced the tocopherol and chlorophyll content, and the photosynthetic activity by repressing ZmPORB1 expression in embryos of NIL-K22, but did not affect the levels of the tocopherol precursors HGA(homogentisic acid)and PMP(phytyl monophosphate). Furthermore, ZmPORB1 is inducible by low oxygen and light, thereby involved in the hypoxia response in developing embryos. Concurrent with natural hypoxia in embryos, the redox state has been changed with NO increasing and H_(2)O_(2) decreasing, which lowered γ-tocopherol content via scavenging reactive nitrogen species. In conclusion, we proposed that the lower lightharvesting chlorophyll content weakened embryo photosynthesis, leading to fewer oxygen supplies and consequently diverse hypoxic responses including an elevated γ-tocopherol consumption. Our findings shed light on the mechanism for fine-tuning endogenous oxygen concentration in the maize embryo through a novel feedback pathway involving the light and low oxygen regulation of ZmPORB1 expression and chlorophyll content.

关键词： maize tocopherol hypoxia photosynthesis ZmPORB1

A Distributed Strategy for Defensing Objective Function Attack in Large-scale Cognitive Networks

在线全文

学校读者我要写书评

暂无评论

国际计算机前沿大会会议论文集 2015年第1期 4-5页

作者： Guangsheng Feng Junyu Lin Huiqiang Wang Xiaoyu zhao Hongwu Lv qiao zhao College of Computer Science and Technology Harbin Engineering UniversityHarbin150001China School of Computer and Information Engineering Harbin University of CommerceHarbin150028China

Most of existed strategies for defending OFA (Objective Function Attack)are centralized, only suitable for small-scale networks and stressed on the computation complexity and traffic load are usually neglected. In this paper, we pay more attentions on the OFA problem in large-scale cognitive networks, where the big data generated from the network must be considered and the traditional methods could be of helplessness. In this paper, we first analyze the interactive processes between attacker and defender in detail, and then a defense strategy for OFA based on differential game is proposed, abbreviated as DSDG. Secondly, the game saddle point and optimal defense strategy have proved to be existed simultaneously. Simulation results show that the proposed DSDG has a less influence on network performance and a lower rate of packet *** importantly, it can cope with the large range

关键词： cognitive networks objective function attack game model

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

基于实践能力的饲料企业网络营销人才培养

中国饲料 2021年第19期 107-110页

作者：赵巧黄淮学院河南驻马店463000

近年来信息技术的快速发展,让网络营销和电子商务等领域得到了空前发展。发展网络营销和电子商务模式具有拓展市场范围、降低营销成本、提升企业影响力等优势,成为了企业提升竞争力的重要转型方向。我国饲料企业数量众多,在激烈的市场... 详细信息

近年来信息技术的快速发展,让网络营销和电子商务等领域得到了空前发展。发展网络营销和电子商务模式具有拓展市场范围、降低营销成本、提升企业影响力等优势,成为了企业提升竞争力的重要转型方向。我国饲料企业数量众多,在激烈的市场竞争环境下,许多企业从经营战略、管理方式、技术水平等方面寻找降低企业生产成本的方式,其中发展电子商务平台,走网络营销路径成为了饲料企业尝试的重点领域之一。本文以饲料企业为研究对象,基于目前饲料企业对网络营销人才的基本要求,即具有跨学科专业知识储备和良好的实践能力、沟通能力、协调能力,进一步分析出目前饲料企业在网络营销人才培养过程存在的不足之处,并提出提升对网络营销人才实践能力重视程度,完善多元化的网络营销人才实践能力培训方式和实践能力培训过程与企业实际相结合等建议,为我国饲料企业创新型人才培养提供理论参考。

关键词：实践能力饲料企业网络营销人才培养

基于物联网的农作物试验基地监控管理系统设计

在线全文

学校读者我要写书评

暂无评论

农机化研究 2019年第1期41卷 222-225页

作者：赵巧重庆电力高等专科学校信息工程学院重庆4000053

物联网把各种传感器、信息处理器和无线网络融合成一个庞大的整体系统,用于对目标进行智能识别和精准管理。农作物试验基地是一个由多种系统组成的有机联系的庞大整体,集成的设备多,采集和处理的信息量庞大,特别适合于物联网的应用。为... 详细信息

物联网把各种传感器、信息处理器和无线网络融合成一个庞大的整体系统,用于对目标进行智能识别和精准管理。农作物试验基地是一个由多种系统组成的有机联系的庞大整体,集成的设备多,采集和处理的信息量庞大,特别适合于物联网的应用。为此,基于物联网技术,设计了一种农作物的试验基地监控管理系统,由信息采集模块、网络传输模块、应用管理模块、专家决策模块和操作执行模块5大部分组成,主要实现智能灌溉、施肥和害虫防治3大功能。对水稻、玉米和棉花3种作物的试验结果表明:系统在保证作物高产的同时,还能明显节约资源,有助于实现试验基地的高效运行和精准管理。

关键词：物联网农作物试验基地监控管理

Embryo Transfer Strategies for Women with Recurrent Implantation Failure During the Frozen-thawed Embryo Transfer Cycles:Sequential Embryo Transfer or Double-blastocyst Transfer?

在线全文

学校读者我要写书评

暂无评论

Current Medical Science 2024年第1期44卷 212-222页

作者： qiao-hang zhao Yu-wei SONG Jian CHEN Xiang ZHOU Ji-lai XIE Qiu-ping YAO Qi-yin DONG Chun FENG Li-ming ZHOU Wei-ping FU Min JIN The Second Affiliated Hospital of Zhejiang University School of Medicine Hangzhou 310052China Jiaxing Maternity and Child Health Care Hospital Jiaxing 314051China Huzhou Maternity and Child Care Hospital Huzhou 313002China Ningbo Women and Children's Hospital Ningbo 315000China

Objective Both sequential embryo transfer(SeET)and double-blastocyst transfer(DBT)can serve as embryo transfer strategies for women with recurrent implantation failure(RIF).This study aims to compare the effects of SeET and DBT on pregnancy *** Totally,261 frozen-thawed embryo transfer cycles of 243 RIF women were included in this multicenter retrospective *** to different embryo quality and transfer strategies,they were divided into four groups:group A,good-quality SeET(GQ-SeET,n=38 cycles);group B,poor-quality or mixed-quality SeET(PQ/MQ-SeET,n=31 cycles);group C,good-quality DBT(GQ-DBT,n=121 cycles);and group D,poor-quality or mixed-quality DBT(PQ/MQ-DBT,n=71 cycles).The main outcome,clinical pregnancy rate,was compared,and the generalized estimating equation(GEE)model was used to correct potential confounders that might impact pregnancy *** GQ-DBT achieved a significantly higher clinical pregnancy rate(aOR 2.588,95%CI 1.267–5.284,P=0.009)and live birth rate(aOR 3.082,95%CI 1.482–6.412,P=0.003)than PQ/***,the clinical pregnancy rate was significantly higher in GQ-SeET than in PQ/MQ-SeET(aOR 4.047,95%CI 1.218–13.450,P=0.023).The pregnancy outcomes of GQ-SeET were not significantly different from those of GQ-DBT,and the same results were found between PQ/MQ-SeET and PQ/*** SeET relative to DBT did not seem to improve pregnancy outcomes for RIF patients if the embryo quality was comparable between the two *** clinical pregnancy outcomes could be obtained by transferring good-quality embryos,no matter whether in SeET or *** quality plays a more important role in pregnancy outcomes for RIF patients.

关键词： recurrent implantation failure sequential embryo transfer frozen-thawed embryo transfer embryo transfer strategies

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

基于潜在类别模型的高铁旅客市场细分

交通运输系统工程与信息 2017年第2期17卷 28-34页

作者：乔珂赵鹏文佳星北京交通大学交通运输学院北京100044

对高速铁路旅客市场进行细分是应用收益管理理论的重要环节.基于京沪高铁的客票数据,选取年龄、性别、出行日期、出行距离、购票方式和提前购票时间6类外显变量作为分类指标,采用潜在类别模型进行高速铁路旅客市场的细分.首先将外显变... 详细信息

对高速铁路旅客市场进行细分是应用收益管理理论的重要环节.基于京沪高铁的客票数据,选取年龄、性别、出行日期、出行距离、购票方式和提前购票时间6类外显变量作为分类指标,采用潜在类别模型进行高速铁路旅客市场的细分.首先将外显变量概率参数化后代入模型进行建模并利用Mplus软件进行模型求解,模型拟合的AIC和BIC等指标表明,当潜在类别为3类时模型具有较好的效果.然后根据模型参数估计结果对所有数据进行潜在聚类分析,分类正确率达到93%左右,表明分类结果合理,3种类别的旅客在提前购票时间、出行距离等方面具有明显的差异.潜在类别模型的引入可以为我国高速铁路收益管理理论研究和实践应用提供参考借鉴.

关键词：铁路运输旅客市场细分潜在类别模型高速铁路条件概率

在线全文

学校读者我要写书评

暂无评论

太湖有色溶解有机质光谱吸收空间的分异特征

中国环境科学 2008年第4期28卷 289-293页

作者：赵巧华秦伯强南京信息工程大学遥感学院江苏南京210044 中国科学院南京地理与湖泊研究所江苏南京210008

利用模糊聚类的方法,分析了冬、夏季全太湖有色溶解有机质(CDOM)的吸收系数谱的时空演变特征.结果表明,就太湖CDOM的组成而言,冬、夏2季的CDOM均可大致划分为2类,夏季,一类位于太湖西部沿岸及北部湾区,另一类位于太湖东南部区域;冬季,... 详细信息

利用模糊聚类的方法,分析了冬、夏季全太湖有色溶解有机质(CDOM)的吸收系数谱的时空演变特征.结果表明,就太湖CDOM的组成而言,冬、夏2季的CDOM均可大致划分为2类,夏季,一类位于太湖西部沿岸及北部湾区,另一类位于太湖东南部区域;冬季,其一位于太湖北部及北部湾区,其二位于太湖的南部.太湖北部区域入湖河道输送的有机物是造成该区域CDOM的组成类型及浓度区别于太湖南部的主要因素.冬、夏2季不同盛行风引发的风生流,是造成CDOM在太湖呈现不同季节、不同空间分布的基本原因.在这2季中,北部湾区的CDOM的浓度均大于其南部区域,且南部CDOM浓度的空间变化较北部平缓.冬季全太湖CDOM组成的空间变化较夏季更为均匀.

关键词：模湖聚类有色溶解有机质风生流标准化吸收谱

Failure of a “Modern” Education: Mansfield Park as a Case Study

在线全文

学校读者我要写书评

暂无评论

海外英语 2013年第11X期 228-230页

作者：赵巧智河南科技大学国际教育学院

This paper explores the moral anarchy caused by the failed education in Mansfield Park, and demonstrates the insufficiency of mere intellectual education and the absolute necessity of moral education in the formation ... 详细信息

关键词： Women’s Education Intellectual Education Moral Edu