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Southern rice black-streaked dwarf virus:A new proposed Fijivirus species in the family Reoviridae

Chinese Science Bulletin 2008年第23期53卷 3677-3685页

作者： ZHOU GuoHui WEN JingJung CAI DeJiang LI Peng XU DongLin zhang shuguang Laboratory of Plant Virology South China Agricultural University Guangzhou 510642 China Plant Protection Station Agricultural Department of Hainan Province H-aikou 570003 China

For the past several years, a novel dwarf disease has been observed on rice (Oryza sativa) in some regions of Guangdong Province and Hainan Province, southern China. Infected plants showed stunting, dark leaf and small enations on stem and leaf back. Typical Fijivirus viroplasma containing crystalline arrayed spherical virons approximately 70―75 nm in diameter and tubular structures were detected in ultrathin sections by an electron microscope in parenchyma phloem cells of the infected plants. The virus was transmitted to rice seedlings by white-backed planthoppers, Sogatella furcifera (Hemiptera: Delphacidae), collected in the diseased fields. Analysis of dsRNA extracts from infected plants revealed ten linear segments, which were similar to the electrophoretic profile of Rice black-streaked dwarf virus (RBSDV). RT-PCR with a single primer which matched to a linker sequence ligated to both 3′ ends of the viral genomic dsRNAs resulted in amplification of genome segments 9 (S9) and 10 (S10) cDNA products. The complete nucleotide sequences of S9 and S10 were obtained from clones of the RT-PCR amplicon exhibited characteristic properties of Fijivirus including low GC content (34.5% and 35.6%), genus conserved 5′ and 3′ termini sequences and similar genome organization. Blast searches indicated that the sequences of S9 and S10 shared 68.8%―74.9% and 67.1%―77.4% nucleotide identities with those of viruses in the Fijivirus group 2, respectively. These values were similar to those among other viruses in the Fijivirus group 2 and considerably lower than those among RBSDV isolates. Phylogenetic trees based on S9 and S10 nucleotide sequences and their putative amino acid sequences showed that this virus represented a separate branch among other Fijiviruses. The virus was also detected by a nested RT-PCR assay in corn (Zea mays), barnyard grass (Echinochloa crusgalli), Juncellus serotinus and flaccidgrass (Pennisetum flaccidum) in and/or adjacent to the infected rice fields. I

关键词：水稻矮化病基因组染色体预防措施

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In situ monitoring of the structural change of microemulsions in simulated gastrointestinal conditions by SAXS and FRET

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Acta Pharmaceutica Sinica B 2018年第4期8卷 655-665页

作者： Xia Lv shuguang zhang Huipeng Ma Peipei Dong Xiaodong Ma Ming Xu Yan Tian Zeyao Tang Jinyong Peng Haibo Chen Jianbin zhang College of Pharmacy Dalian Medical University College of Life Science Dalian Minzu University Xinglin College Liaoning University of Traditional Chinese Medicine College of Medical Laboratory Dalian Medical University

Microemulsions are promising drug delivery systems for the oral administration of poorly watersoluble drugs. However, the evolution of microemulsions in the gastrointestinal tract is still poorly characterized,especially the structural change of microemulsions under the effect of lipase and mucus. To better understand the fate of microemulsions in the gastrointestinal tract, we applied small-angle X-ray scattering(SAXS) and fluorescence resonance energy transfer(FRET) to monitor the structural change of microemulsions under the effect of lipolysis and mucus. First, the effect of lipolysis on microemulsions was studied by SAXS, which found the generation of liquid crystalline phases. Meanwhile, FRET spectra indicated micelles with smaller particle sizes were generated during lipolysis, which could be affected by CaCl_2, bile salts and lecithin. Then, the effect of mucus on the structural change of lipolysed microemulsions was studied. The results of SAXS and FRET indicated that the liquid crystalline phases disappeared, and more micelles were generated. In summary, we studied the structural change of microemulsions in simulated gastrointestinal conditions by SAXS and FRET, and successfully monitored the appearance and disappearance of the liquid crystalline phases and micelles.

关键词： Microemulsions SAXS FRET Lipolysis Mucus Liquid crystalline phase

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“The Development of Private Economy and Transition of China's Institutions”——A Discussion On Knowledge Production and Case Study

中国制度变迁的案例研究

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中国制度变迁的案例研究 2006年 32-80页

作者： zhang shuguang Jin Xiangrong

Preface What presented before the readers is the fifth Volume of"The Case Study of Transition of China’s Institution,"compiled and edit- ed by the Center for Research of Private Economy, Zhejiang Uni- versity(CRPE).L...

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Foreword to the Third Volume①

中国制度变迁的案例研究

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中国制度变迁的案例研究 2004年 7-24页

作者： zhang shuguang, Unirule Institute of Economics

Evolving Institutions: Informality and Interaction In accordance with our original plan, this volume was interded to focus on the studies of the relationship between informal and formal instituions, around which the process of transition in domestic insti tutions would be laid out. Over the period of implementation, however, we found many ready- made researches that were in line with

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Inward and Outward Opening and Institutional Change:Preface for the case studies of China's institutional change(Guangdong Volume)

Inward and Outward Opening and Institutional Change:Preface ...

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作者： zhang shuguang

The Case Studies of China’s Institutional Change(Guangdong Volume)has been *** is the sixth volume of the research series,which is funded by the Social Science Innovation Base of Industries and Research of Regional D...

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Our Country＇s Ancient Learning Has a Mandate for Renewal

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Social Sciences in China 2010年第2期31卷 74-90页

作者： zhang shuguang School of Philosophy and Sociology Beijing Normal University

Although national learning, i.e., traditional Chinese learning, has been affected by the onslaught of Western learning, its pulse still beats strongly. Its intellectual essence consists in the Chinese emphasis on a complementary ＂relationship＂ of differences that takes shape in the course of production and life and on the harmonious ＂whole,＂ together with Chinese efforts to control their own destiny by virtue of this relationship and this whole. The ＂learning＂ in national learning revolves around man and is vividly manifested in the Confucian concept of ＂benevolence＂ or human-heartedness （ren 仁）. If one were to say that Chinese modernization is nothing other than the Chinese nation＇s ＂self-＇transformation and transcendence under the impact of external forces, then it is national learning that can provide significant intellectual resources for modern Chinese to go about their lives and work through the transmission and extension of the idea of ＂benevolence.＂ However, this can only happen if culture and scholarship are fully ＂self-aware.＂

关键词： Chinese national learning Confucianism West learning Confucius

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350km·h^(-1)高速列车噪声机理、声源识别及控制

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中国铁道科学 2009年第1期30卷 86-90页

作者：张曙光铁道部运输局北京1000844

为了考察350 km.h-1高速列车在运行状态下的车外噪声水平、主要声源及其源强分布特性,根据国内外高速列车噪声理论和试验研究经验,在列车和线路状况满足ISO3095—2005标准相关要求的前提下,在京津城际铁路选取现场测试工点,采用多通道... 详细信息

为了考察350 km.h-1高速列车在运行状态下的车外噪声水平、主要声源及其源强分布特性,根据国内外高速列车噪声理论和试验研究经验,在列车和线路状况满足ISO3095—2005标准相关要求的前提下,在京津城际铁路选取现场测试工点,采用多通道阵列式噪声数据采集分析系统,对京津城际铁路高速列车噪声进行现场测试。测试数据分析结果表明:350 km.h-1高速列车车外辐射噪声的主要声源为轮轨接触部位、转向架、受电弓及其底座以及车辆连接处的气动噪声;对车辆上不同位置测得的声暴露级按大小排序,前4名的依次为头车轮轨接触位置、第2节车辆受电弓位置、第2节车辆的轮轨接触位置、头车和第2节车辆上部的气动噪声。由此提出350 km.h-1高速列车噪声的控制策略及措施。

关键词：高速列车铁路噪声噪声源噪声机理噪声控制

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Study on Fine Structure of Gas Atomized LaNi_5-based Alloys

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Journal of Materials Science & Technology 2003年第5期19卷 425-427页

作者： Hai JING, Hong GUO, shuguang zhang, Zili MA and Shaoming zhangNational Engineering Research Center for Non-ferrous Metals Composites, General Research Institute for Non-ferrous Metals, Beijing 100088, China National Engineering Research Center for Non-ferrous Metals Composites General Research Institute for Non-ferrous MetalsBeijing 100088 China

The fine structure of hydrogen storage alloy powders MiNi4.3-xCoxMr0.4AI0.3(x=0.75, 0.45, 0.10; Ml: La-rich misch metal) prepared by rapidly solidifying gas atomization was investigated using a Rietveld analysis method. Two sets of CaCu5-type crystal constants were observed in the studied alloys and one set was larger than the other. With decreasing powder radius the solidification rate of powder increased, and so did the percentage of a particle part with larger crystal constants. The reason why there were two sets of crystal constants might be the difference of solidification rate between the outside and inside of a particle.

关键词： Hydrogen storage alloys Gas atomization Rietveld analysis Crystal structure

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Branding Macao＇s External Image Through Strategic Communication： A Descriptive Study

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Fudan Journal of the Humanities and Social Sciences 2015年第3期8卷 427-446页

作者： shuguang zhang Wei Huang Ni Chen Wenli Cheng Macao University of Science and Technology Taipa Macao Department of Communication University of Macao Taipa Macao

Many national governments have employed strategic communication in promoting their external images. Though somewhat a sub-nation since its handover to China in 1999, the Macao Special Administrative Region Government （MSARG） finds it imperative to apply strategic communication to its place branding in its regional and international communities. Taking on the former Portuguese colony for an in-depth analysis, this study describes the perception of, knowledge about, and practice on strategic communication by the MSARG communication officials. The findings, though limited, seem reconcilable with the analytical assumptions of strategic communication studies in the west.

关键词： Macao Sub-nation Place image - Image branding External communication Strategic communication

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高速列车耦合大系统动力学及服役模拟

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西南交通大学学报 2008年第2期43卷 147-152页

作者：张卫华张曙光西南交通大学牵引动力国家重点实验室四川成都610031 西南交通大学牵引动力国家重点实验室

根据高速列车运行、服役的特点及动力学研究的需求,以高速列车为研究对象,提出了与线路、接触网和气流耦合作用的高速列车耦合大系统动力学理论框架.采用子结构方法,通过运动或力的耦合,构建了高速列车耦合大系统模型.从运行安全性和可... 详细信息

根据高速列车运行、服役的特点及动力学研究的需求,以高速列车为研究对象,提出了与线路、接触网和气流耦合作用的高速列车耦合大系统动力学理论框架.采用子结构方法,通过运动或力的耦合,构建了高速列车耦合大系统模型.从运行安全性和可靠性出发,提出服役模拟的概念,论述了高速列车服役模拟研究的必要性,并对材料、结构和参数等失效模型的建立,以及服役模拟的过程、方法和研究内容提出了建议.

关键词：高速列车动力学服役失效模拟

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