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Acta Oceanologica Sinica 2023年第4期42卷 72-80页

作者： Chenyu Song zhong tu Na Song Key Laboratory of Mariculture(Ocean University of China) Ministry of EducationQingdao 266003China Shandong Fisheries Development and Resources Conservation Center Yantai 264003China

Acanthogobius ommaturus, which belongs to the family Gobiidae, is a euryhaline and demersal fish that is widely distributed in the coastal areas, harbors, and estuaries of China, D. P. R. Korea and Japan. In this study, the genetic diversity and genetic structure of five geographical populations of A. ommaturus was assessed using the mitochondrial hypervariable region gene and microsatellite markers. The results of the two genetic markers indicated that the A. ommaturus populations had a high level of genetic diversity. The mitochondrial marker detected weak genetic differentiation among populations, and the Neighbor-Joining tree showed that there was no obvious pedigree branches and geographic structure as well. However, population of Zhoushan showed significant genetic differentiation with other populations by microsatellite markers. The population of *** has not experienced bottleneck effect recently. We speculated that the Pleistocene climate change and juvenile fish dispersal played an important role in the population differentiation of A. ommaturus.

关键词： mitochondrial markers microsatellite markers genetic diversity genetic structure Acanthogobius ommaturus

New Octadecanoyl Diterpenoid Arabinoside from Conyza blinii

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Chemical Research in Chinese Universities 2009年第4期25卷 458-460页

作者： CHEN Lei SU Yan-fang tu Guang-zhong School of Pharmaceutical Science and Technology Tianjin University Tianjin 300072 P. R China Beijing Institute of Microehemistry Beijing 100091 P. R. China

A new octadecanoyl diterpenoid glycoside,（E）-8α,15-dihydroxy-15-（3S-hydroxy-octadecanoyl）-13-labdene-8-O-α-L-arabinopyranoside（1）,was isolated from the aerial parts of Conyza blinii,and the structure was ident... 详细信息

关键词： Conyza blinii Diterpenoid Labdane Arabinoside

A New Cycloartane Triterpene Glycoside from Souliea vaginata

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Chinese Chemical Letters 2005年第8期16卷 1047-1049页

作者： Liang ZHOU Jun Shan YANG Guang zhong tu Institute of Medicinal Plant Development Chinese Academy of Medical Sciences and Peking Union Medical College Beijing 100094 Beijing Institute of Microchemistry Research Beijing 100060

A new cycloartane triterpene glycoside was isolated from the rhizome of Souliea vaginata. Its structure was established as 12-deacetyloxy-15α-hydroxy-23-epi-26-deoxyactein by spectroscopic and chemical methods.

关键词： Souliea vaginata ranunculaceae cycloartane triterpene glycosides.

FLOW PAST TWO ROTATING CIRCULAR CYLINDERS IN A SIDE-BY-SIDE ARRANGEMENT

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Journal of Hydrodynamics 2009年第2期21卷 143-151页

作者： GUO Xiao-hui LIN Jian-zhong tu Cheng-xu WANG Hao-li China Jiliang University Hangzhou 310018 China

Measurements were performed using Particle Image Velocimetry （PIV） to analyze the modification of flow by the combined effects of the rotation and the Reynolds number on the flow past two rotating circular cylinders in a side-by-side-arrangement at a range of 425 〈 Re ≤ 1130,0 ≤α ≤4 （ α is the rotational speed） at one gap spacing of T / d = 1.11 （T and d are the distance between the centers of two cylinders and the cylinder diameter, respectively）. A new Immersed-Lattice Boltzmann Method （ILBM） scheme was used to study the effect of the gap spacing on the flow. The results show that the vortex shedding is suppressed as rotational speed increases. The flow reaches a steady state when the vortex shedding for both cylinders is completely suppressed at critical rotational speed. As the rotational speed further increases, the separation phenomenon in the boundary layers disappears at the attachment rotational speed. The critical rotational speed and attachment rotational speed become small as Reynolds number increases. The absolute rotational speed of cylinders should be large at same critical rotational speed and attachment rotational speed in the case of large Reynolds number. The gap spacing has an important role in changing the pattern of vortex shedding. It is very different in the mechanism of vortex shedding suppression for the flows around two rotating cylinders and single rotating cylinder.

关键词： flow around two rotating cylinders side-by-side arrangement measurement simulation vortex shedding suppression

Assessment of the Characteristics of Demersal Fish Communities Using Species-and Trait-Based Approaches in the Coastal Habitats Along Rongcheng Bay,Shandong Peninsula,China

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Journal of Ocean University of China 2024年第3期23卷 786-796页

作者： YUAN Shunjie SUN Xin tu zhong SUN Jie WANG Xianning ZHANG Peidong Key Laboratory of Mariculture(Ocean University of China) Ministry of EducationQingdao 266003China Shandong Fisheries Development and Resource Conservation Center Yantai 264003China

Biodiversity declines have motivated many studies on the relationship between species diversity and ecosystem *** this study,we described the spatial-temporal characteristics of demersal fish communities along a coastal habitat in Rongcheng Bay,Shandong Peninsula,China with both species-based and biological trait-based *** field survey was carried out monthly using traps from April to October of 2018,and divided into three seasons(spring:April and May;summer:June,July and August;autumn:September,October and November).The study area included five distinct habitats:seagrass bed,natural rocky reef,bare sand,artificial reef together with natural rocky reef,and artificial reef together with bare *** analyzed the fish communities with three taxonomic diversity indices,including Shannon-Wiener,Simpson,and Pielou Evenness,as well as four functional diversity indices,including FRic,FEve,FDiv,and FDis,based on 7 functional groups which are categorized into 27 *** results showed that there were no significant differences in taxonomic diversity indices among different habitats in the three ***,significant differences were found in the functional richness of fish communities among different habitats in three *** bed represented the highest functional richness in spring and *** study demonstrates that seagrass bed is very important in enhancing the functional diversity of fish communities in a complex *** study also indicates that the combination of taxonomic diversity and functional diversity will provide a more detailed description of the characteristics of fish communities.

关键词： complex habitat biological traits biodiversity fish communities

New Spirostanol Sulfonate from the Rhizomes of Helleborus thibetanus(Ranunculaceae)

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Chemical Research in Chinese Universities 2010年第5期26卷 746-748页

作者： YANG Feng-ying SU Yan-fang ZHANG Xiao tu Guang-zhong GAO Xiu-mei ZHANG Bo-li School of Pharmaceutical Science and Technology Tianjin University Tianjin 300072 P R. China Tianjin Key Laboratory of TCM Chemistry and Analysis Tianjin University of Traditional Chinese Medicine Tianjin 300193 P R. China Beijing Institute of Microchemistry Beijing 100091 P R. China

A new spirostanol sulfonate, spirost-5,25（27）-dien-1β,3β-diol 1-sulfonate（1）, was isolated from the rhizomes of Helleborus thibetanus（Ranunculaceae）, and the structure was identified on the basis of a detailed... 详细信息

关键词： Helleborus thibetanus Ranunculaceae Spirostanol Sulfonate

Synthesis of glucose phosphate derivatives by the phosphite triester method

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Acta Chimica Sinica(English Edition) 1984年第2期2卷 169-179页

作者： tu Chuan-zhong CAI Shao-Pei YANG Zai-Wan Shanghai Institute of Organic Chemistry,Academia Sinica Shanghai Institute of Organic Chemistry Academia Sinica

Synthesis of sugar phosphate derivatives by means of phosphite triester method is *** glucose phosphotriester derivatives have been prepared,***,methyl n-pro-pyl,and methyl isopropyl（1,2:5,6-di-O-isopropylidene-α-D-glucofuranose-3-）phosphate（5,7and 8）;methyl bis-（1,2:5,6-di-O-isopropylidene-α-D-glucofuranose-3-）phosphate（6）;methylbis-（1,2,3,4-tetra-O-acetyl-β-D-glucopyranose-6-）phosphate（9）;methyl bis-（1,2-O-isopropyl-idene-3,5-O-benzylidene-α-D-glucofuranose-6-）phosphate（10）;and methyl（1,2,5,6-di-O-iso-propylidene-α-D-glucofuranose-3-）（1,2,3,4-tetra-O-acetyl-β-D-glucopyranose-6-）phosphate（11）.The results of the displacement of second chlorine atom of the reagent by different alcoholsshowed that methanol,n-propanol,isopropanol and as well as the glucose derivatives reacted nor-mally to give the expected phosphite esters which yield the expected phosphate products after oxidation,but not the *** of methyl group from a phosphotriester linkage can be easilyachieved by the action of t-butyl amine and thus,t-butyl ammonium bis-（1,2:5,6-di-O-isopropyl-idene-α-D-glucofuranose-3-）phosphate t-butyl amine salt（12）has been obtained from its parentphosphotriester in nearly quantitative *** mass spectra data of di-O-isopropylideneglucose phosphate reveals that the cleavage ofthese compounds follows a general pattern and can be used for their characterization.

关键词：一刀 Synthesis of glucose phosphate derivatives by the phosphite triester method

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各向异性岩体超声波测试试验研究

重庆建筑大学学报 2007年第6期29卷 39-43页

作者：涂忠仁重庆交通大学河海学院

以厦门海底隧道为工程背景,开展一系列声波测试工作,研究了岩样内部裂隙及岩样致密性对声波参数的影响。研究表明:岩样内部的裂隙会对横波产生阻波效应,使横波波速在阻波效应发生的方向上波速明显降低,而对纵波波速则影响不大;松散的内... 详细信息

以厦门海底隧道为工程背景,开展一系列声波测试工作,研究了岩样内部裂隙及岩样致密性对声波参数的影响。研究表明:岩样内部的裂隙会对横波产生阻波效应,使横波波速在阻波效应发生的方向上波速明显降低,而对纵波波速则影响不大;松散的内部结构引起的几何弥散效应、反射等现象,不仅使横波和纵波的波速明显减小,而且会降低纵波的主频和振幅。

关键词：各向异性岩体超声波测试海底隧道

New Isoflavonoside from Bupleurum Scorzonerifolium

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Chinese Chemical Letters 1998年第1期9卷 71-73页

作者： Li TAN Yu Ying ZHAO Bin WANG Ru Yi ZHANG (Department of Phytochemistry, Beijing Medical University, Beijing 100083)Guang zhong tu(Beijing Institute of Microchemistry, Beijing 100091) Beijing Med Univ Dept Phytochem Beijing 100083 Peoples R China

A new isoflavonoside, 7-hydroxy-4'-methoxy-isoflavonone-7-O-beta-D-glucopyranosyl-(1-->6)-beta-D-glucopyranoside was isolated from roots of Bupleurum scorzonerifolium Willd., and named as saikoisoflavonoside A. The st... 详细信息

关键词： Bupleurum scorzonerifolium isoflavonoside saikoisoflavonoside A

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基于流量域的校园网组网新模式

厦门大学学报（自然科学版） 2007年第A02期46卷 114-117,143页

作者：涂中群南通大学现代教育技术中心江苏南通226019

传统的互联型网络架构难以适应日趋复杂的校园网应用需求,是目前影响数字化校园建设深入发展的一个重要因素.借鉴城域网建设思路,充分考虑学校各个功能模块对网络带宽、网络安全、服务质量、策略管理等方面的要求,积极探索按流量域划分... 详细信息

传统的互联型网络架构难以适应日趋复杂的校园网应用需求,是目前影响数字化校园建设深入发展的一个重要因素.借鉴城域网建设思路,充分考虑学校各个功能模块对网络带宽、网络安全、服务质量、策略管理等方面的要求,积极探索按流量域划分的校园网建设新模式,使各功能子网既有机联系又相对独立,杜绝冲突与碰撞,可以为广大师生员工提供更高性能、更高安全、更灵活易管理的网络应用平台,同时为数字化校园的实现打下更为坚实的基础.

关键词：流量域建网模式功能子网网络管理数字化校园