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Preliminary investigation and detection based on loop-mediated isothermal amplification(LAMP)of phytoplasmas associated with diseases in *** L.

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Oil Crop Science 2022年第4期7卷 219-224页

作者： yancheng wen Shufen Zhang Junping He Dongfang Cai Jiacheng Zhu Jianping Wang Jinhua Cao Kun Hu Lei Zhao Dongguo Wang Yizi Liu Institute of Industrial Crops of Henan Academy of Agricultural Sciences Zhengzhou450002China

In the last decade,some disease occurred on our experimental farms that had caused serious *** were not caused by fungi,bacteria or *** loop-mediated isothermal amplification(LAMP)technique,the detection results pointed to the possible pathogen as *** investigation results implied that phytoplasmas could cause more than 13 kinds of symptoms in almost all parts of plants in *** L.,including witches’broom,multi-stems,aggregate main inflorescences,and flat *** incidences of these phytoplasma-associated diseases in our experimental farms rose from 1.61%in 2010 to 6.00%in *** phytoplasma infected plants died without any growing *** studies would be helpful for detecting phytoplasmas diseases,selecting disease resistant germplasm and improving varieties with disease resistances in *** L.

关键词： B.napus L. Phytoplasma associated disease Pathogen Detection Loop-mediated isothermal amplification (LAMP)

Optimum Application Time and Application Rate of Nitrogen Fertilizer in Brassica napus L.

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Asian Agricultural Research 2018年第5期10卷 57-61页

作者： Junping HE Shufen ZHANG Jiacheng ZHU Jinhua CAO yancheng wen Dongfang CAI Lei ZHAO Dongguo WANG Jianping WANG Institute of Industrial Crops Henan Academy of Agricultural Sciences/Key Laboratory of Oil Crops in Huang-Huai-Hai PlainMinistry of Agriculture/Henan Provincial Key Laboratory for Oil Crops Improvement

To find proper nitrogen fertilizer application mode of rapeseed( Brassica napus L.),promote the high and stable yield of rapeseed,field experiment was carried out to study the effect of nitrogen fertilizer application modes on the yield and economic traits of Fengyou 10 rapeseed planted in two different fertility soils,and characteristics and differences of responses of different fertility soils to nitrogen fertilizer application modes were compared and analyzed. The results showed that the yield and related economic traits of rapeseed treated by nitrogen fertilizer were higher than the control group; in the nitrogen fertilizer treatment group,when the nitrogen fertilizer was applied as the base fertilizer and wintering fertilizer at the ratio of 7∶ 3,the rapeseed yield was higher than the control group and reached the highest; when the nitrogen fertilizer was applied as the base fertilizer,wintering fertilizer,and bud fertilizer at the ratio of 5∶ 3∶ 2,the rapeseed yield was significantly higher than the control group but was the lowest. These indicate that sufficient nitrogen supply is the basis for normal growth and development of rape seedlings. When the pure nitrogen fertilizer was at 192 kg/ha and the ratio of base fertilizer and wintering fertilizer was 7∶ 3,it can better coordinate the high yield of rapeseed and overall use of nitrogen fertilizer,and obtain higher rapeseed yield.

关键词： Brassica napus L. Nitrogen fertilizer application Yield Economic traits Soil fertility

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变频调速在传统粗纱机改造中的应用

纺织科技进展 2004年第6期 49-51页

作者：靖文盐城纺织工业学校江苏盐城224000

介绍了欧姆龙PLC在传统粗纱机变速系统改造中的运用 ,阐述了变频调速在纺机改造中的作用。

关键词： PLC 变频调速粗纱机软件设计

基于基因芯片的甘蓝型油菜优异材料杂种优势群划分

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分子植物育种 2023年第11期21卷 3785-3797页

作者：文雁成张书芬何俊平蔡东芳朱家成王建平曹金华胡坤赵磊王东国河南省农业科学经济作物研究所农业部黄淮海油料作物重点实验室河南省油料作物重点实验室郑州450002

本研究旨在对特异油菜种质资源材料进行杂种优势群划分,提高杂交种选育效率。本研究利用新开发的甘蓝型油菜全基因组50K芯片对优异种质资源材料进行杂种优势群划分。结果表明,共检测到25 135个均匀分布于甘蓝型油菜19个染色体的SNP位点... 详细信息

本研究旨在对特异油菜种质资源材料进行杂种优势群划分,提高杂交种选育效率。本研究利用新开发的甘蓝型油菜全基因组50K芯片对优异种质资源材料进行杂种优势群划分。结果表明,共检测到25 135个均匀分布于甘蓝型油菜19个染色体的SNP位点。基于这些位点数据计算的遗传距离,其变动幅度在0.012 2~0.666 2之间,平均值为0.418 1,说明这些材料的遗传多样性较好。在遗传距离阈值为0.53处,将100份材料划分为6个杂种优势群,分别为:长江中游材料后代群Ⅰ(8个品系)、黄淮流域材料群Ⅱ(5个品系)、人工合成材料群Ⅲ(7个品系)、种间杂交后代群Ⅳ(3个品系)、参考群Ⅴ(芥菜型油菜1个)、混合来源群Ⅵ,其中第Ⅵ杂种优势群包含76个来源广泛的材料,是最大的一个优势群。第Ⅵ杂种优势群在遗传距离阈值为0.45处,又划分为6个亚群,其中C亚群包含材料最多,达到40个,说明在这些特异材料中,尽管总的遗传多样性较好,但是其中部分材料遗传基础较窄。本研究还发现了4个强优势杂种模式,分别是黄淮流域材料作母本与长江中游、长江下游、种间杂交材料后代和人工合成油菜后代的杂交模式。对比聚类结果与系谱的关系,发现系谱相近的品系并不一定总是归类到同一优势群中。说明凭借系谱来确定材料的遗传关系远近,是定性的和不准确的。来自不同杂种优势群的亲本间的杂交组合,产量超对照优势高于群内亚群间的亲本组合,同一亚群内的亲本间的杂交组合的优势最低。说明杂种优势群的划分对提高选育油菜杂交种效率有帮助。

关键词：甘蓝型油菜(Brassica napus L.) 遗传多样性杂种优势群杂种优势模式基因芯片

Experimental study of population density using an optimized random forest model

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Journal of Geographical Sciences 2024年第8期34卷 1636-1656页

作者： LI Lingling LIU Jinsong LI Zhi wen Peizhang LI yancheng LIU Yi School of Geographical Sciences Hebei Normal UniversityShijiazhuang 050024China Hebei Technology Innovation Center for Remote Sensing Identification of Environmental Change Shijiazhuang 050024China Geocomputation and Planning Center of Hebei Normal University Shijiazhuang 050024China Hebei Key Laboratory of Environmental Change and Ecological Construction Shijiazhuang 050024China

Random forest model is the mainstream research method used to accurately describe the distribution law and impact mechanism of regional *** took Shijiazhuang as the research area,with comprehensive zoning based on endowments as the modeling unit,conducted stratified sampling on a hectare grid cell,and systematically carried out incremental selection experiments of population density impact factors,optimizing the population density random forest model throughout the process(zonal modeling,stratified sampling,factor selection,weighted output).The results are as follows:(1)Zonal modeling addresses the issue of confusion in population distribution laws caused by a single *** on a grid cell not only ensures the quality of training data by avoiding the modifiable areal unit problem(MAUP)but also attempts to mitigate the adverse effects of the ecological *** sampling ensures the stability of population density label values(target variable)in the training sample.(2)Zonal selection experiments on population density impact factors help identify suitable combinations of factors,leading to a significant improvement in the goodness of fit(R^(2))of the zonal models.(3)Weighted combination output of the population density prediction dataset substantially enhances the model's robustness.(4)The population density dataset exhibits multi-scale superposition *** a large scale,the population density in plains is higher than that in mountainous areas,while on a small scale,urban areas have higher density compared to rural *** optimization scheme for the population density random forest model that we propose offers a unified technical framework for uncovering local population distribution law and the impact mechanisms.

关键词： population density random forest model endowment zones stratified sampling factor selection weighted output

History,Reality,and Challenges:Bounded Dynamic Relations Between the Gulf Arab States and Taiwan Region

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Asian Journal of Middle Eastern and Islamic Studies 2021年第3期15卷 415-432页

作者： Shaobiao wen Ruohao Shen yancheng Xin Middle East Studies Institute Shanghai International Studies UniversityShanghaiChina Shanghai Institute for International Strategic Studies(SIISS) ShanghaiChina S.Rajaratnam School of International Studies Nanyang Technological UniversitySingaporeSingapore

The relations between Taiwan region and the Gulf Arab States are twisting and *** UN General Assembly Resolution 2758 in 1971 and the suspension of the official relation between Taiwan and Saudi Arabia in 1990 generally divided the relations into three general *** of Taiwan’s sensitive role and the‘One China Policy,’the relationship has been constrained,especially after ***,the relationship is still dynamic in the field of trade,civil exchanges,technology transfer,and industrial *** the DPP came to power in Taiwan in 2016,the cross-strait relation has reached its lowest point since the Chen Shui-bian era,and the relationship between Taiwan and the Gulf Arab states has encountered new challenges given PRC has been pursuing this region as a strategic ***,the strategic contraction of the US in the Middle East will bring more uncertainty.

关键词： Taiwan region Gulf Arab States Middle East trade strategy history

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文学史的第二重存在——论文学史实践

思想战线 2001年第3期27卷 74-77页

作者：温潘亚盐城师范学院中文系江苏盐城224002

文学史的存在是两重的 :首先是客观的、原初的文学史 ;其次是经由文学史家们理解和阐释的文学史 ,即文学史实践。文学史实践所具有的历史与审美属性之间可谓是一种辩证统一的关系 ,且处于特定的三维时空之中。文学史有文学和思想两条叙... 详细信息

文学史的存在是两重的 :首先是客观的、原初的文学史 ;其次是经由文学史家们理解和阐释的文学史 ,即文学史实践。文学史实践所具有的历史与审美属性之间可谓是一种辩证统一的关系 ,且处于特定的三维时空之中。文学史有文学和思想两条叙史线索 ,其著述形态和语式主要有重历史。

关键词：文学史存在时空维度叙史线索形态和语式

环形非球谐振子径向矩阵元的通项公式及其递推关系

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物理学报 2002年第3期51卷 468-473页

作者：陈昌远孙东升刘友文成天龙盐城师范学院物理系盐城224002 盐城工业学校物理组盐城224002

环形非球谐振子的势能函数为V(r,θ) =12 mω2 r2 +22mAr2 +22mbr2 sin2 θ,其精确的能谱方程和归一化的波函数已经获得 .在此基础上 ,给出了环形非球谐振子径向矩阵元的通项公式和不同幂次径向矩阵元之间所满足的递推关系 .作为特... 详细信息

环形非球谐振子的势能函数为V(r,θ) =12 mω2 r2 +22mAr2 +22mbr2 sin2 θ,其精确的能谱方程和归一化的波函数已经获得 .在此基础上 ,给出了环形非球谐振子径向矩阵元的通项公式和不同幂次径向矩阵元之间所满足的递推关系 .作为特例 ,讨论了球谐振子、非球谐振子和环形振子的有关结果 .

关键词：环形非球谐振子径向矩阵元通项公式递推关系量子力学原子核结构

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鲁迅文学史思想综论

学术交流 2004年第1期 148-151页

作者：温潘亚盐城师范学院中文系江苏盐城224002

鲁迅的文学史思想深刻而独特,以1927年为界可分为前后两个阶段,前期以天才主义为核心,具有强烈的功利色彩;后期努力运用历史唯物主义的观点和对立统一的规律研究文学史,注重对文学史自身发展规律的探寻,敢于冲破儒家正统观念,在文学史... 详细信息

鲁迅的文学史思想深刻而独特,以1927年为界可分为前后两个阶段,前期以天才主义为核心,具有强烈的功利色彩;后期努力运用历史唯物主义的观点和对立统一的规律研究文学史,注重对文学史自身发展规律的探寻,敢于冲破儒家正统观念,在文学史研究中贯穿强烈而深刻的批判精神和鲜明的现代意识,重视作品的艺术审美研究。在文学史研究方法上将中国传统学术方法与西方现代研究方法相结合。这一切均对我国新世纪的文学史理论与学科建设具有深刻的启迪与借鉴意义。

关键词：鲁迅文学史思想天才主义据实立言天才主义历史唯物主义