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| 1 | Effect of river plume on phytoplankton community structure in Zhujiang River estuary显示文摘To examine the phytoplankton assemblages and the effect of diluted waters on them,a research cruise was conducted from July 19 to August 7,2015 in the Zhujiang(Pearl)River estuary in the northern South China Sea(21°N–23.5°N,111°E–117°E).Samples were collected from 65 stations including one for time-series sampling.A total of 212 phytoplankton taxa were identified from 61 genera belonging to 4 phyla.Among them,122 species identified from 42 genera of Bacillariophyta and 83 species from 15 genera of Pyrrophyta.Chain-forming diatoms dominated the phytoplankton community where Pseudonitzschia delicatissima,Guinardia striata,Thalassionema nitzschioides,and P.pungens comprised about 52%of the total abundance.However,higher cell abundances concentrated on both sides of the estuary,because of low salinity and high nutrients brought by diluted water.In addition,Canonical Correspondence Analysis revealed that salinity and dissolved inorganic nitrogen shaped the species composition in the study area.Furthermore,the Jaccard similarity index showed prevailing high similarity in the distribution of species in low-salinity diluted waters,and the Bray-Curtis similarity depicted distinguished grouping for phytoplankton assemblages along the salinity gradient.However,phytoplankton diel vertical cycles showed maximum abundance occurred at 2:00 am,which was mainly contributed by benthic phytoplankton species Pseudo-nitzschia spp.and T.nitzschioides. | Qi ZHONG Bing XUE Md Abu NOMAN Yuqiu WEI Haijiao LIU Hongbin LIU Liping ZHENG Hongmei JING Jun SUN | 2021 | Journal of Oceanology and Limnology2021，39，2： | 2 |
| 2 | Effects of typhoon Roke and Haitang on phytoplankton community structure in northeastern South China sea显示文摘The influence of typhoon and Kuroshio intrusion process on the natural phytoplankton assemblages in the northeastern South China Sea(neSCS)was examined during a cruise in summer 2017.One hundred ninety-six seawater samples were collected and analyzed in the neSCS.In total,299 species were identified belonging to 82 genera,mostly dominated by Bacillariophyta(159),followed by Dinophyta(132),Cyanophyta(4)and Chrysophyta(4).Among all,Thalassionema nitzschioides,Thalassionema frauenfeldii,Thalassiosira minima,in Bacillariophyta,Prorocentrum lenticulatum,Prorocentrum compressum in Dinophyta,and Trichodesmium thiebautii,in the Cyanophyta were the most dominated species,respectively.Correlation analysis shows compared with other groups Bacillariophyta was mostly influenced by silicate,whereas,Dinophyta and Cyanophyta showed significant correlation with temperature,salinity,phosphate,and nitrate.After the typhoon,the higher abundance of Dinophyta was observed,whereas it was lower in case of Bacillariophyta and Cyanophyta,shows typhoon“Roke“and”Haitang”had a significant influence on the phytoplankton assemblages,which could be manifested by the variations of total phytoplankton abundance in the surface water of neSCS.Overall,our present study provides the latest in-depth information about how the environmental factors influencing the phytoplankton density and diversity in the neSCS during summer. | Yingjie Mao Jun Sun Congcong Guo Yuqiu Wei Xingzhou Wang Shuang Yang Chao Wu | 2019 | Ecosystem Health and Sustainability2019，5，1： | 2 |
| 3 | Effect of cold flow improvers on flow properties of soybean biodiesel显示文摘 | Chen Boshui Sun Yuqiu Fang Jianhua et a1 | 2010 | Biomass Bioenergy2010，34，9： | 1 |
| 4 | Effect of excitation power density on the upconversion luminescence of LaF3 : Yb^3+ , Er^3+ nanocrystals 显示文摘 | Qu Yuqiu Kong Xianggui Sun Yajuan | 2009 | Journal of Alloys and Compounds2009，8，： | 1 |
| 5 | Distribution and environmental impact factors of picophytoplankton in the East China Sea during spring显示文摘Marine picophytoplankton(Pico)as a major contributor to primary productivity in oligotrophic waters,play a very important role in marine material cycle and energy conversion,and their key role in the carbon cycle and global climate change is increasingly emphasized.To study the factors aff ecting the dynamic distribution of Synechococcus,Prochlorococcus,and picoeukaryotes in the East China Sea(ECS),a marginal sea of the Northwest Pacific,we investigated 27 stations in May 2017,and collected 148 samples of Pico and nutrients from the surface to the bottom.By means of flow cytometry,the abundance of Pico was measured,and then we estimated the carbon biomass and analyzed the distribution of Pico.Finally,combined with the ECS unique geographical situation and hydrological regime,we evaluated various factors aff ecting the Pico in the ECS.In Pico community,the picoeukaryotes cell abundance was between 0.49×10^(2)-1.44×10^(4) cells/mL.Prochlorococcus ranged from 1.36×10^(3)-3.47×10^(4) cells/mL and Synechococcus ranged from 0.69×10^(3)-1.15×105 cells/mL.Synechococcus was the most,both in abundance and in carbon biomass.Picoeukaryotes were the least in abundance,but has larger contribution to carbon biomass than Prochlorococcus.Water temperature,salinity,and stability of water column influenced Pico distribution.Picoeukaryotes were abundant in the shelf sea,whereas Synechococcus and Prochlorococcus were detected in the northeast of Taiwan,China.This study provided basic information for the study of Pico communities in the ECS and its adjacent marine ecosystem. | Feng WANG Yuqiu WEI Jiaqi YUE Congcong GUO Jun SUN | 2021 | Journal of Oceanology and Limnology2021，39，4： | 1 |
| 6 | The profound influence of Kuroshio intrusion on microphytoplankton community in the northeastern South China Sea显示文摘To further understand the effect of Kuroshio intrusion on phytoplankton community structure in the northeastern South China Sea(NSCS,14°–23°N,114°–124°E),one targeted cruise was carried out from July to August,2017.A total of 79 genera and 287 species were identified,mainly including Bacillariophyta(129 species),Pyrrophyta(150 species),Cyanophyta(4 species),Chrysophyta(3 species)and Haptophyta(1 species).The average abundance of phytoplankton was 2.14×10~3 cells/L,and Cyanobacterium was dominant species accounting for 86.84%of total phytoplankton abundance.The abundance and distribution of dominant Cyanobacterium were obviously various along the flow of the Kuroshio,indicating the Cyanobacterium was profoundly influenced by the physical process of the Kuroshio.Therefore,Cyanobacterium could be used to indicate the influence of Kuroshio intrusion.In addition,the key controlling factors of the phytoplankton community were nitrogen,silicate,phosphate and temperature,according to Canonical Correspondence Analysis.However,the variability of these chemical parameters in the study water was similarly induced by the physical process of circulations.Based on the cluster analysis,the similarity of phytoplankton community is surprisingly divided by the regional influence of the Kuroshio intrusion,which indicated Kuroshio intrusion regulates phytoplankton community in the NSCS. | Xingzhou Wang Yuqiu Wei Chao Wu Congcong Guo Jun Sun | 2020 | Acta Oceanologica Sinica2020，39，8： | 1 |
| 7 | Low-temperature Properties of Biodiesel:Rheological Behavior and Crystallization Morphology显示文摘大豆油导出 biodiesel 与一个常规号码被准备并且相配 0 petrodiesel。pour 点(PP ) 和插 biodiesel 混合的点(CFPP ) 的冷过滤器在一个低温度的流动测试者上被评估。在不同温度的混合的动态粘性并且不同砍率在一个旋转电流计上被测量。在低温度的 biodiesel 混合的水晶形态学用一台极化的显微镜被分析。当与那些相比整洁的大豆油导出 biodiesel 和纯 petrodiesel,结果显示混合燃料在 PP 和 CFPP 表明了细微减少。在 PP 或 CFPP 的温度下面, biodiesel 混合的动态粘性戏剧性地与减少的温度增加了,但是与增加减少了砍评价,以便 biodiesel 相配展出非牛顿的行为。在比 PP 或 CFPP 高的温度,一种线性关系出现在动态粘性之间并且砍率和 biodiesel 混合成为了牛顿的液体。在低温度, biodiesel 混合的蜡晶体很快成长了并且聚结。为在低温度的 biodiesel 混合的流动性的损失能因此一方面被归因于粘性并且在另一方面的锋利的增加到蜡晶体的快速的生长和凝块。 | Chen Boshui Sun Yuqiu Fang Jianhua Wang Jiu Wu Jiang (Department of Petrochemistry,Logistical Engineering University,Chongqing 401311,China) | 2010 | China Petroleum Processing & Petrochemical Technology2010，12，1： | 1 |
| 8 | Effect of excitation power density on the upconversion luminescence of LaF 3 :Yb 3+ , Er 3+ nanocrystals显示文摘 | Yuqiu Qu Xianggui Kong Yajuan Sun Qinghui Zeng Hong Zhang | 2009 | Journal of Alloys and Compounds2009，，1： | 1 |
| 9 | Effect of cold flow improvers on flow properties of soybean biodiesel显示文摘 | Chen Boshui Sun Yuqiu Fang Jianhua | 2010 | Biomass and bioenergy2010，，34： | 1 |
| 10 | Case Report of an Endodermal Sinus Vaginal Tumor in an Infant Girl显示文摘Case Report An female infant patient, aged 8 months old, suffered from irregular colporrhagia for a period of 1 month after which she was taken to our hospital on 30th April, 2003. A pelvic CT | Chunyu Sun YUqiu Cui Hongfei Li Fengying Wang | 2007 | Chinese Journal of Clinical Oncology2007，4，1： | 0 |
| 11 | EFFECT OF ALLOY ELEMENTS ON QUASIEQUILIBRIUM MICROSTRUCTURE IN Fe-Mn-Ni-Cr STEELS显示文摘The microstructures of Fe-Mn-Ni-Cr steels with medium carbon and the effect of alloy ele-ments on them have been investigated by means of X-ray diffraction quantitative phase ana-lyses,metallography and hardness tests.The volume fraction of martensite in steels quenchedat 1100℃ can be expressed as:fM1100=162.643-15.482Mn-7.36Ni-4.286(Cr+Mo+V)Based on this expression,the quasi-equilibrium microstructure diagram has been obtained.Itis shown that the effect of Mn on the austenite stability is greater than that of Ni.The equiva-lent [Ni]=2.104Mn+Ni and equivalent [Cr]=Cr+Mo+V.The driving force for martensite transformation at Ms point has been calculated to hedrastically decreased by element Mn. | XIE Changsheng SUN Peizhen ZHAO Jiansheng CHEN Yuqiu Huazhong University of Science and Technology,Wuhan,China XIE Changsheng Associate Professor,Department of Mechanical Engineering No.2,Huazhong University of Science and Technology,Wuhan 430074,China | 1990 | Acta Metallurgica Sinica(English Letters)1990，3，1： | 0 |
| 12 | Microwave absorption performance of porous carbon particles modified by nickel with different morphologies显示文摘In this work,porous carbon particles were prepared from wheat flour by pyrolysis and activation.Through the subsequent coprecipitation and electroless plating,the surface and pores of carbon particles were modified by nickel-rich particles with different morphologies.Several loss mechanisms,including dielectric loss,magnetic loss,multiple reflection and scattering loss,were used to assess the attenuation ability to incident electromagnetic waves of these composite particles.The result shows that the chain-shaped morphology of nickel can provide the highest dielectric loss.Under the filler loading of 20 wt.%,the minimum reflection loss(RL min)reached-38.42 dB at 13.2 GHz,and the_(max)imum effective absorption bandwidth(EAB_(max))was 5.2 GHz with a matching thickness of 2 mm.The excellent performance of the composite particles is attributed to the synergistic effect of outstanding impedance matching and supe-rior electromagnetic loss ability caused by the chain structure.The result shows that the morphology of modifiers in carbon-based composites is important to improve microwave absorption performance,and this work provides inspiration for the design of high-performance porous carbon-based composites. | Zhangtao Shen Yapei Zu Yuqiu Chen Jun Gong Chao Sun | 2023 | Journal of Materials Science & Technology2023，，6： | 0 |
| 13 | Advances on Immunological Effect of Chinese Herbal Preparations on Shrimps显示文摘Shrimp culture industry in China has been severely constrained by shrimp diseases,causing great economic losses.Controlling shrimp disease through immunological methods has become a research hotspot.This paper summarized the research results of Chinese herbal medicines on improvement of shrimp immunity in recent years,and put forward the research direction of fishery Chinese herbal preparations in the future,in order to provide technical reference for shrimp culture industry. | Wenxiang XING Jiansheng YE Yuqiu SUN Lin CHEN | 2018 | Agricultural Biotechnology2018，7，6： | 0 |
| 14 | Chemical constituents and biological activities of Azadirachta indica A. Juss显示文摘Azadirachta indica A. Juss is a tropical evergreen plant, belonging to the Meliaceae family. The plant is used as folk medicines for the treatment of fever, neuromuscular pains, skin infections, diabetes and heart disease. Previous researches show that the plant possesses several types of chemical constituents and diverse biological activities. The paper concludes chemical constituents, biological activities and pesticide products of A. indica. | Xuegui Liu Yuqiu Sun Jun Bian Mengchao Lv Ting Han Danqi Li Pinyi Gao | 2019 | Asian Journal of Traditional Medicines2019，14，1： | 0 |
| 15 | Microstructure,Mechanical,and Tribological Properties of Amorphous WB2/Ti Multilayer Coatings显示文摘Amorphous WB2/Ti multilayer coatings with different modulation ratios(1,5,15,and 30)and different bilayer numbers(10,20,30,50,and 70)were deposited by direct-current magnetron sputtering.The effect of modulation ratio and bilayer number on the microstructure,mechanical,and tribological properties of WB2/Ti multilayer coatings was studied systematically.In the investigation for the influence of modulation ratio,the hardness of the multilayer coatings increases with the increment of modulation ratio.The indentation toughness shows a different changing tendency compared to that of the hardness with different modulation ratios.The wear rates of the multilayer coatings with different modulation ratios are at the same level with the influence of both hardness and indentation toughness.In the investigation for the influence of bilayer number,both hardness and indentation toughness increase first and then decrease with an increasing bilayer number.WB2/Ti multilayer coating with a modulation ratio of 5 and bilayer number of 50 exhibits the highest hardness of 20.4 GPa and lowest wear rate of 1.76×10−16 m3/Nm.In addition,the hardness strengthening mechanism and wear mechanism of the multilayer coatings were discussed in detail. | Wenhe Li Wenshuang Gu Yuqiu Chen Jun Gong Zhiliang Pei Chao Sun | 2023 | Acta Metallurgica Sinica(English Letters)2023，36，8： | 0 |
| 16 | Living coccolithophores in the western Pacific Ocean with mesoscale eddies显示文摘Living coccolithophores(LCs)are regarded as a group of calcifiers and play important roles in global carbon cycle.This study used microscopic observations of LCs in the western Pacific Ocean to investigate their community structure and biodiversity,especially to test whether local physical traits(mesoscale eddies)could explain their biogeographic distributions during autumn of 2017.The coccolithophore calcite inventory based on carbon-volume transformation was estimated in this study.A total of 28 taxa of coccospheres and 19 types of coccoliths were identified from 161 samples.Gephyrocapsa oceanica was the most predominant species in all the coccolithophore community,followed by Florisphaera profunda,Emiliania huxleyi,Umbilicosphaera sibogae,Gladiolithusflabellatus and Umbellosphaera tenuis.The abundance of coccospheres and coccoliths ranged from 0 to 26.8×10^(3)cells/L and from 0 to 138.5×10^(3)coccoliths/L,averaged at 4.2×10^(3)cells/L and 10.9×10^(3)coccoliths/L,respectively.This study indicated that coccolithophore community in the survey area can be clustered into four groups.Three ecological niches of coccolithophores were characterized by their vertical profiles and multivariate statistical analysis.Coccolithophore abundance and species composition were remarkably different among warm-eddy region,G.oceanica dominated warm-eddy region,while F.profunda dominated warm-eddy and none-eddy region.The average values of estimated particulate inorganic carbon,particulate organic carbon were0.197μg/L and 0.140μg/L,respectively.The current field study widened the dataset of coccolithophores in western Pacific Ocean. | Danyue Huang Haijiao Liu Jun Sun Yuqiu Wei Liuyang Li Guicheng Zhang Laxman Pujari | 2021 | Acta Oceanologica Sinica2021，40，6： | 0 |
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