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上海后继新建筑创意取向

城市规划 2005年第12期29卷 70-73页

作者：徐景猷上海市城市规划设计研究院

上海城市后继新建筑,关注单栋建筑与城市环境的总体关系,充分注意城市历史的延续与创新,新旧建筑之间应取得空间上和时间上的连续感和平衡感。上海城市后继新建筑,具有熔铸中西的“后海派文化”内涵,构建出全球-本土-地域三个层面多元... 详细信息

上海城市后继新建筑,关注单栋建筑与城市环境的总体关系,充分注意城市历史的延续与创新,新旧建筑之间应取得空间上和时间上的连续感和平衡感。上海城市后继新建筑,具有熔铸中西的“后海派文化”内涵,构建出全球-本土-地域三个层面多元复合、融汇时尚文化的现代主义本土化建筑风格。

关键词：陪统文化地域文化创新

The Biocontrol Effects of the Bacillus licheniformis W10 Strain and Its Antifungal Protein Against Brown Rot in Peach

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Horticultural Plant Journal 2015年第3期1卷 131-138页

作者： JI Zhaolin HE Huiwen ZHOU Huijuan HAN Feng TONG Yunhui YE Zhengwen xu jingyou College of Horticulture and Plant Protection Yangzhou University Forestry and Fruit Research Institute Shanghai Academy of Agricultural Sciences

The biocontrol effects of Bacillus licheniformis W10 bacterial suspension and its antifungal protein on peach brown rot caused by Monilinia fructicola in storage peach fruits and the effects on fruit quality were investigated. The results showed that the fruit disease suppression of B. licheniformis W10 bacterial suspension and antifungal protein were significantly higher than that of the control. Inoculation of bacterial suspension and antifungal protein prior to M. fructicola gave a better biocontrol effect, and the higher concentrations of bacterial(1 × 1010 cfu · m L-1) and antifungal protein(3.0 mg · m L-1) performed better control effects. The environmental conditions, such as temperature and humidity, affected biocontrol effects of W10 bacterial suspension and antifungal protein. The influence of environment conditions on the activity of antifungal protein was less than that on bacterial suspension. Moreover, lower temperature(4 ℃) and relative humidity(RH 70%–75%) were favorable to prevent peach brown rot by W10 bacterial suspension and its antifungal protein. The W10 bacterial suspension and antifungal protein amended with calcium [0.1% Ca(NO3)2] could enhance the biocontrol effects, and obviously put off the occurrence of peach brown rot. In addition, the bacterial suspension and antifungal protein significantly reduced the natural decay rates of peach fruits during storage, and the effects were equal to carbendazim. Moreover, both W10 bacterial suspension and antifungal protein treatments did not have effects on external and internal fruit appearance, such as chromatic aberration parameter L* of flesh, flesh firmness, soluble solids content and weight loss. Therefore, the B. licheniformis W10 is a potential biocontrol factor for peach brown rot.

关键词： peach Bacillus licheniformis antifungal protein Monilinia fructicola biological control fruit quality

A single Amino-acid Substitution of Polygalacturonase Inhabiting Protein （OsPGIP2） Allows Rice to Acquire Higher Resistance to Sheath Blight

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A single Amino-acid Substitution of Polygalacturonase Inhabi...

中国植物病理学会2017年学术年会

作者： Chen Xijun Li Lili Zhang Lina xu Bin Chen Zhongxiang Zuo Shimin xu jingyou Horticulture and Plant Protection College Yangzhou University Key Laboratory of Crop Genetics and Physiology of Jiangsu Province/Key Laboratory of Plant Functional Genomics of the Ministry of Education College of AgricultureYangzhou University

A possible strategy to control plant diseases is improvement of natural plant defense mechanisms against the infection of *** one kind of leucine-rich repeat proteins,polygalacturonase inhibiting proteins（PGIPs） have been found involved in plant defense against the pathogens by inhibiting the activity of fungal endo-polygalacturonases（endo-PGs）.To dig more resistant gene,a single amino acid of the OsPGIP2,which has no effect on the endo-PGs activity of Rhizoctonia solani,was substituted and it allowed OsPGIP2 to acquire the inhibiting *** of OsPGIP2 significandy increased rice resistance to rice sheath blight and counteracted the tissue degradation caused by ***,OsPGIP2 overexpression did not affect rice agronomic traits or yield *** these indicated that OsPGIP2 was an important potential gene that could be applied to rice sheath blight resistance breeding.

关键词： Single amino acid substitution Polygalacturonase inhibiting protein Sheath blight resistance Oryzae sativa

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系统频率变化对直流系统触发控制环节的影响

电网技术 2014年第4期38卷 871-876页

作者：谭海燕徐敬友孙海顺强电磁工程与新技术国家重点实验室(华中科技大学) 湖北省武汉市430074 国网湖北省电力公司经济技术研究院湖北省武汉市430074

系统的大功率缺额易引起较大的频率偏移。频率偏移过大可能导致直流系统(high voltage DC transmission,HVDC)触发脉冲异常,进而引发运行问题。以实际系统MACH2(modular advanced control hardware 2)为例,分析了触发控制原理及锁相环... 详细信息

系统的大功率缺额易引起较大的频率偏移。频率偏移过大可能导致直流系统(high voltage DC transmission,HVDC)触发脉冲异常,进而引发运行问题。以实际系统MACH2(modular advanced control hardware 2)为例,分析了触发控制原理及锁相环工作原理,重点研究了系统频率变化对锁相环工作及换相电压过零点判断的影响。在PSCAD/EMTDC仿真平台中搭建了MACH2触发环节的简化模型,仿真结果表明,频率变化会影响系统触发脉冲的产生,导致实际触发延迟角无法及时跟踪指令值,但对系统运行的影响不大。由于控制系统触发延迟角幅值限制环节的影响,系统频率升高及降低两种情况对直流系统的影响程度也有差别。

关键词：系统频率直流输电触发控制锁相环换相电压过零点

Identification and characterization of Phytopythium helicoids causing stem rot of ’Shatangju’ mandarin seedlings in China

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Identification and characterization of Phytopythium helicoid...

Overexpression of OsPGIP1 enhances rice resistance to sheath blight

中国植物病理学会第十二届青年学术研讨会

作者： Xiaoren Chen Beibei Liu Yuping Xing Baoping Cheng Yunhui Tong jingyou xu College of Horticulture and Plant Protection Yangzhou University Plant Protection Research Institute Guangdong Academy of Agricultural Sciences

Citrus mandarin（Citrus reticulata） cultivar ’Shatangju’ possesses great economic importance in southern China because of its delicious fruits and medicinal *** surveys conducted in 2012 and 2013,a stem rot disease were observed on grafted ’Shatangju’ seedlings in 21 nurseries located in three regions（Yangjiang City,Sihui City and Deqing County） of Guangdong Province,*** aim of this study was to characterize the symptoms of seedling stem rot;evaluate the incidence and loss;identify the causal agent and evaluate its pathogenicity and *** disease was present in all surveyed nurseries but incidence varied with location.A Pythium-like oomycete species was consistently obtained from symptomatic plants collected in the nurseries *** the basis of morphological and cultural characteristics and combined phylogenetic analysis of four molecular barcodes including the internal transcribed spacer region（ITS）,β-tubulin,mitochondrial CoxⅠ and CoxⅡgenes,20 isolates obtained were identified as belonging to the species Phytopythium *** representative isolates were pathogenic to the scions but rootstocks of’Shatangju’ mandarin seedlings cultivated under nursery conditions and in a greenhouse and symptoms identical to that observed in the field were *** pathogen was reisolated consistently from the inoculated plants,confirming Koch’s *** stem rot and death caused by *** represents a serious threat to ’Shatangju’ mandarin nurseries productivity and longevity in southern China.

关键词： ’Shatangju’ mandarin stem rot Phytopythium helicoids molecular barcode pathogenicity

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Overexpression of OsPGIP1 enhances rice resistance to sheath...

Influence of different inoculation methods on the evaluation of the resistance to rice sheath blight(Rhizoctonia solani Kuhn)

中国植物病理学会第十二届青年学术研讨会

作者： Xijun Chen Yu Chen Bin xu Linan Zhang Zongxiang Chen Yunhui Tong Shimin Zuo jingyou xu Jiangsu Key Laboratory of Crop Genetics and Physiology/Co-Innovation Center for Modern Production Technology of Grain Crops Key Laboratory of Plant Functional Genomics of the Ministry of EducationYangzhou University Horticulture and Plant Protection College Yangzhou University

Rice sheath blight（SB）,caused by necrotrophic pathogen Rhizoctonia solani,is one of the most destructive rice diseases and no major resistance genes are ***-inhibiting proteins（PGIPs） are extracellular leucine-rich repeat（LRR） proteins and play important roles in plant defense against different pathogenic fungi by counteracting secreted fungal ***,the role of PGIPs in conferring resistance to rice SB remains to be thoroughly *** we showed that OsPGIPl is capable of inhibiting PGs derived from *** real-time RTPCR results indicated that resistant rice cultivars YSBR1 and Jasmine 85 express significantly higher levels of OsPGIPl than susceptible cultivar *** results also show that OsPGIPl is most highly expressed at the late tillering stage in the sheath of YSBR1,coinciding with the critical stage of SB development in *** importantly,the OsPGIPl level is highly elevated by inoculation with *** in resistant cultivars,but not in susceptible *** of OsPGIPl significantly increased rice resistance to SB and inhibited tissue degradation caused by *** secreted ***,OsPGIPl overexpression did not affect rice agronomic traits or yield ***,our results not only demonstrate the important role of OsPGIPl in combatting the rice SB disease,but also provide a new avenue to the improvement of rice SB resistance by manipulating an endogenous gene.

关键词： Oryzae sativa polygalacturonase polygalacturonase-inhibiting protein gene 1 sheath blight resistance overexpression

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Chinese Rice Research Newsletter 1998年第2期6卷 7-8页

作者： PAN xuebiao CHEN Zongxiang xu jingyou TONG Yunhui WANG Zibin PAN Xingyuan Dept of Agro of Agri Coll,Yangzhou Univ,Yangzhou 225009,China

To establish a standard system for geneticstudies on sheath blight resistance, a field testwas conducted at the experimental farm ofYangzhou University to compare several pro-cedures for inoculating rice plants with *** Kuhn (RH9). The varieties used wereJasmine 85, Teqing (resistant or moderatelyresistant), and Lemont (susceptible). They

关键词： Influence of different inoculation methods on the evaluation of the resistance to rice sheath blight Rhizoctonia solani Kuhn

考虑直流电流变化及交流故障发生时刻影响的HVDC换相失败分析方法

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电网技术 2015年第5期39卷 1261-1267页

作者：徐敬友谭海燕孙海顺吴晋波国网湖北省电力公司经济技术研究院湖北省武汉市430074 强电磁工程与新技术国家重点实验室(华中科技大学) 湖北省武汉市430074 国网湖南省电力公司电力科学研究院湖南省长沙市410007

研究了交流系统三相对称故障造成的直流电流变化及故障时刻对HVDC换相失败的影响,由关断角减小到换相失败临界值,推出换相电压值的计算方法。该方法在经典计算方法的基础上,考虑了故障后直流电流的变化,推导了换相电压值与关断角的关系... 详细信息

研究了交流系统三相对称故障造成的直流电流变化及故障时刻对HVDC换相失败的影响,由关断角减小到换相失败临界值,推出换相电压值的计算方法。该方法在经典计算方法的基础上,考虑了故障后直流电流的变化,推导了换相电压值与关断角的关系式;在此基础上进一步研究了故障时刻对临界换相电压值的影响,推导了故障时刻与临界换相电压值的关系式。对双极直流系统算例进行了相应的计算分析,并通过时域仿真验证了该分析结果的正确性。研究得出,计算临界换相电压值在计及故障造成的直流电流的变化和故障时刻的影响是不同的,该方法可有效提高理论分析临界换相电压值的计算精度,进一步说明故障后是否发生换相失败,与是否有足够的关断角或相应的反向换相电压时间面积相关。

关键词：高压直流输电换相失败临界换相电压值直流电流故障时刻

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基于改进复杂网络模型的电网关键环节辨识

电力系统自动化 2016年第10期40卷 53-61页

作者：徐敬友陈冲罗纯坚陈曦熊炜林湘宁国网湖北省电力公司经济技术研究院湖北省武汉市430077 强电磁工程与新技术国家重点实验室华中科技大学湖北省武汉市430074

为了更好地揭示电网复杂形态下的特性以及辨识可能触发电网大规模事故的关键环节,通过功率传输路径、功率加权传输距离、路径传输能力的定义对已有的电网复杂网络模型进行改进,使之符合电网基本电气规律和满足物理特性约束。进而基于改... 详细信息

为了更好地揭示电网复杂形态下的特性以及辨识可能触发电网大规模事故的关键环节,通过功率传输路径、功率加权传输距离、路径传输能力的定义对已有的电网复杂网络模型进行改进,使之符合电网基本电气规律和满足物理特性约束。进而基于改进的电网复杂网络模型建立了包含距离度、能力度、枢纽介数、距离介数和能力介数的电网关键节点和支路的评价指标集,使之能准确考虑节点和支路在电网结构和运行中的地位和作用。利用所述模型对IEEE典型系统以及某省级电网进行建模和关键环节辨识,取得了较好效果,并通过与现有方法的对比验证了算法的合理性与有效性。

关键词：改进复杂网络模型功率传输路径路径传输能力关键环节辨识