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36篇 您的检索式:作者名="HUA Er"
    题名 作者 年代 出处 被引量
1Meiofauna distributions at the oxygen minimum zone in Changjiang (Yangtze) River Estuary waters显示文摘A quantitative study on meiofauna was carried out along a transect throughout the Changjiang Estuary’s oxygen minimum zone (OMZ) in the East China Sea. There exist two distinct station groups in the OMZ: the fine-grained hypoxic area and the more fine-grained anoxic area. Meiofauna abundance ranged from (101.5±31.0) ind./cm2 (hypoxic area) to (369.9±123.9) ind./cm2 (anoxic area) along the transect. Free-living marine nematodes were the numerically dominant meiofauna at every station. The anoxic area differed significantly in meiofauna abundance and vertical distribution pattern from the hypoxic area. Within the anoxic area, nematodes abundance increased and amounted to over 90% of the total meiofauna; about 50% of nematodes were found in the 25 and 58 cm layers. At hypoxic stations, about over 85% were restricted to the top 2 cm. Benthic copepod abundance and dominance decreased consistently with the oxygen gradient. The pattern of meiofauna biomass was similar to that of abundance. The correlation analysis of the meiofauna numbers and environmental parameters indicated that abundance and biomass of total meiofauna and nematodes had significant or highly significant (P<0.05 or P<0.01) correlations with Chl a and Pha a, but no significant (P>0.05) correlations with bottom-water oxygen (BWO2). On the other hand, there was a highly significant positive correlation between benthic copepod abundance and bottom-water oxygen (P<0.05). The investigation on the nematode community structure indicated that two different nematode communities existed in hypoxic and anoxic areas. In certain way, the shift in nematode species composition distinguishes the anoxia to hypoxia. Nematode diversity was generally lower within the anoxic stations than the hypoxic ones, but the difference was not significant. Indices of the nematode community structure varied in relation to the bottom-water oxygen together with bottom-water temperature, Chl a concentration and median grain size of sediment.HUA Er ZHANG Zhinan ZHANG Yan 2006Acta Oceanologica Sinica2006,25,5:11
2Taxonomic Distinctness of Macrofauna as an Ecological Indicator in Laizhou Bay and Adjacent Waters显示文摘In this paper, we assessed the ecological and biodiversity status in the Bohai Sea through a quantitative survey on mac-rofaunal community at 25 stations in Laizhou Bay and adjacent waters in the autumn of 2006.We tested the robustness and effectiveness of taxonomic distinctness as an ecological indictor by analyzing its correlation with species richness and natural environmental variables and by analyzing other ecological indicators (Shannon-Wiener H' and W statistics from Abundance Biomass Comparison curve).Results so obtained indicated that the benthic environment of the study waters in general is not under major impact of anthropogenic disturbance, but some stations in Laizhou Bay and along the coast of the Shandong Peninsula and even in the central Bohai Sea might be moderately disturbed and showed signs of ecological degradation.The taxonomic distinctness measures △+ and Λ+ were independent of sampling effort and natural environment factors and were compliant to other ecological indicators.Further application of the taxonomic distinctness indicator to assess marine biodiversity and ecosystem health on a larger regional scale with historical data seems promising.ZHOU Hong HUA Er ZHANG Zhinan 2010Journal of Ocean University of China2010,9,4:9
3Meiofauna Distribution in Intertidal Sandy Beaches Along China Shoreline(18?–40?N)显示文摘In this study,the distribution pattern of meiofauna from nine sandy beaches at six latitudinal gradients along Chinese coast between 18 and 40?N was studied on their meiofauna abundance to examine the effect of latitudinal gradients.In general,meiofauna abundance was lower in four subtropical beaches in Xiamen(24?N) and Zhoushan(29?N) than that in other beaches.Meiofauna abundance differed little between tropical and temperate beaches.The taxonomic structure of meiofauna showed a dominance of nematode in colder area.The relative composition of turbellarians and polychaetes increased in warmer area.In addition to latitudinal gradient,salinity,oxygenation,sediment grain size affect also the meiofauna latitudinal distribution.As for horizontal distribution,the highest meiofauna abundance was found in low tidal zone at tropical beaches,and in middle tidal zone at temperate beaches.The horizontal distribution of meiofauna was controlled by both physical and biotic factors including feeding and anthropogenic activities.Although meiofauna abundance exhibited a horizontal difference,the composition of meiofaunal main taxa was unanimous horizontally at all beaches at the same sampling latitude.HUA Er ZHANG Zhinan ZHOU Hong MU Fanghong LI Jia ZHANG Ting CONG Bingqing LIU Xiaoshou 2016Journal of Ocean University of China2016,15,1:7
4Seasonal variability in free-living marine nematode community structure in a sandy beach of the Taiping Bay of Qingdao,China显示文摘Nematode assemblage composition, trophic structure and biodiversity were followed over an annual cycle in a sandy beach of the Taiping Bay of Qingdao, China. Nematode assemblage in the sandy beach maintained a high genus diversity (75 genera). Microlaimus and Bathylaimus were the dominant genus of the nematode assemblage, accounting for 66% of the total nematode abundance. The nematodes' dominant trophic structure changed seasonally as a response to the seasonal changes in food quality. Epigrowth-feeder nematodes (2A) were the dominant trophic groups in the trophic structure with the highest abundance in spring because of phytoplankton bloom, while the feeding type (1B) showed higher abundance in summer that was due to the increasing of sediment detritus after spring bloom. Furthermore, species diversity and evenness calculated on nematodes identified to the genus level displayed significant temporal changes, which was also reflected by the index of trophic diversity. According to the cluster analysis, the nematode community structure of the whole year was clearly separated into two periods (A and B). Biota-Environment matching (BIOENV) results showed that seawater temperature,sediment Chl a and grain size were responsible for the nematode community structure variation in spring and summer period (Period A). However, seawater/interstitial water temperature, interstitial water dissolved oxygen concentration,interstitial water salinity, and sediment Ph a a were more important in constructing the autumn and winter period (Period B) nematode community structure.LIU Haibin ZHANG Zhinan FAN Shiliang HUA Er DENG Ke 2008Acta Oceanologica Sinica2008,27,2:7
5Investigation of Load Prediction on the Mexico Rotor Using the Technique of Determination of the Angle of Attack显示文摘Blade element moment(BEM) is a widely used technique for prediction of wind turbine aerodynamics performance,the reliability of airfoil data is an important factor to improve the prediction accuracy of aerodynamic loads and power using a BEM code.The method of determination of angle of attack on rotor blades developed by SHEN,et al is successfully used to extract airfoil data from experimental characteristics on the MEXICO(Model experiments in controlled conditions) rotor.Detailed surface pressure and particle image velocimetry(PIV) flow fields at different rotor azimuth positions are examined to determine the sectional airfoil data.The present technique uses simultaneously both PIV data and blade pressure data that include the actual flow conditions(for example,tunnel effects),therefore it is more advantageous than other techniques which only use the blade loading(pressure data).The extracted airfoil data are put into a BEM code,and the calculated axial and tangential forces are compared to both computations using BEM with Glauert's and SHEN's tip loss correction models and experimental data.The comparisons show that the present method of determination of angle of attack is correct,and the re-calculated forces have good agreements with the experiment.YANG Hua SHEN Wenzhong SORENSEN Jens Nork er ZHU Weijun 2012Chinese Journal of Mechanical Engineering2012,25,3:5
6Caffeic acid attenuates neuronal damage, astrogliosis and glial scar formation in mouse brain with cryoinjury显示文摘Zhang Lei Zhang Wei - Ping Chen Ke - Da Qian Xiao - Dong Fang San - Hua Wei Er - Qing 2006中国药理通讯2006,23,4:3
7Ecological functioning of free-living marine nematodes in coastal wetlands: an overview显示文摘Nematodes are small multicellular, thread-like organisms, inhabiting almost all conceivable environments;among these, some 25 % are free-living marine forms with a population density of(1–12) 9 106 inds m-2in seabed sediment, reaching maximum values in muddy estuaries and salt marshes. A large quantity of carbon from the salt marsh plants enters the ecosystem via the detritus pathway,in which nematodes play an important role through their feeding and bioturbation activities. Vegetation influences the sedimentary environment and modifies the distribution pattern of nematode communities in coastal wetlands.Nematodes are coupled closely with bacteria/detritus in microbial food webs, stimulating bacterial growth and subsequent nutrient remineralization; they provide food sources for higher trophic levels and serve as a linkagebetween micro- and macro-fauna. Furthermore, nematodes have a potential to provide proxies that can be used in diagnosing environmental quality. In China, only a limited number of nematode data sets are available for the coastal wetlands across several different climatic zones. It is necessary to carry out additional investigations into the biology and ecology of nematodes in order to delineate their ecological functioning in coastal wetlands. On such a basis,the contribution made by nematodes to material cycling and the ecological functioning in coastal wetlands can be quantified. The assessment of their biological diversity should be a focus, which is fundamental in the study of wetland ecosystem dynamic mechanisms. In addition to laboratory and mesocosm experiments, mathematical models should be established to predict the responses of ecosystem to the environmental disturbance. Finally, it is necessary to improve the techniques for nematode analysis,to enhance the efficiency of data acquisition.Yongfen Du Shu Gao Richard M.Warwick Er Hua 2014Chinese Science Bulletin2014,59,34:2
8Four Newly Recorded Free-living Marine Nematodes(Comesomatidae) from the East China Sea显示文摘Three species in genus Sabatieria and one in genus Cervonema from the East China Sea were recorded. S. breviseta is characterized by uniformly punctuated coarse dots, large amphids of 5.5 turns (♂) and prominent gubernaculum median piece. The characters of S. breviseta agree quite well with the European original descriptions and only differ in the male amphid turns (5.5 vs. 4.0 turns) and unmodified preanal supplements (5-7 vs. 6). S. pulchra can be recognized by amphid 2.75 turns, irregularly arranged lateral dots, and the first three supplements anterior to the anus, which are more widely spaced than the following ones. The excretory system of S. breviseta and S. pulchra shows sexual dimorphism. S. celtica is defined by amphids 2.00-2.25 turns, weakly developed pharyngeal bulb, curved apophyses and 12-13 conspicuous supplements. C. deltensis is characterized by amphids 4.75 turns, ovate pharyngeal posterior bulb, sperm dimorphism, 7 thin preanal supplements, and long tail cylindrical portion (50%-53% of tail length). All the three Sabatieria species are for the first time recorded in Chinese waters. C. deltensis was originally isolated from the Bohai Sea and Yellow Sea and newly recorded in the East China Sea.HUA Er, and ZHANG Zhinan* College of Life Science and Technology, Ocean University of China, Qingdao 266003, P. R. China 2007Journal of Ocean University of China2007,6,1:2
9Nematode Community Structure and Diversity Pattern in Sandy Beaches of Qingdao,China显示文摘We investigated the diversity and structure of free-living marine nematode communities at three sandy beaches representing typical intertidal environments of a temperate zone in Qingdao,Shandong Province,China.Average nematode abundance ranged from 1006 to 2170 ind.10 cm-2,and a total of 34 nematode genera were recorded,of which only 8 were common in all the studied beaches.Pielou's evenness and Shannon-Wiener diversity index were the lowest at the second beach where nematode abundance was the highest.The highest species diversity index coincided with the lowest nematode abundance at Shilaoren beach.Sediment median grain size,sorting coefficient,and chlorophyll-a content were essential for differentiation in nematode abundance and species diversity,whereas taxonomic diversity of nematode was homogeneous across the three beaches.In 0–20 cm sediment profile,nematode abundance declined abruptly with depth,whereas nematode diversity changed gently with obvious difference in 16–20 cm layer.Sediment granulometry and chlorophyll-a content were the two foremost factors which influenced the vertical distribution pattern of nematode generic diversity.Non-selective deposit feeders constituted the most dominant trophic group,followed by epistratum feeders.Bathylaimus(family:Tripyloididae) dominated at the second and Yangkou beach,while Theristus(family:Xyalidae) prevailed at Shilaoren beach.Omnivores and predators became important at Shilaoren beach because of the high proportion of Enoplolaimus.Even though,nematode community of the studied beaches did not differ significantly from each other.HUA Er MU Fanghong ZHANG Zhinan YANG Shichao ZHANG Ting LI Jia 2016Journal of Ocean University of China2016,15,1:2
10Tetrahydrofuran Ring Opening with Acyl Chlorides or Anhydrides Catalyzed by Gallium Triiodides: A Novel and Facile Method for the Preparation of Iodo Esters显示文摘Tetrahydrofuran ring can be opened with acyl chlorides or anhydrides catalyzed by gallium triiodides to afford iodo esters under mild conditions in good yields.Hua Yue WU Ren Er CHEN Yong Min ZHANG 2000Chinese Chemical Letters2000,11,3:2
11Number of central lymph node metastasis for predicting lateral lymph node metastasis in papillary thyroid microcarcinoma显示文摘Rui‐chao Zeng Wei Zhang Er‐li Gao Pu Cheng Guan‐li Huang Xiao‐hua Zhang Quan Li 2014Head Neck2014,,:1
12Performance of feature selection methods in the classification of high-dimension data显示文摘Hua Jianping Tembe WD Dougherty ER 2009Pattern Recognition2009,42,3:1
13Annexin A5 inhibits atherogenic and pro-inflammatory effects of lysophosphatidylcholine显示文摘Helena Domeij Xiang Hua Jun Su Alexandra B?cklund Zhongqun Yan Anna G. Frosteg?rd Jesper Z. Haeggstr?m Tomas Modéer Johan Frosteg?rd 2013Prostaglandins and Other Lipid Mediators2013,,:1
14A CIDNP STUDY OF THE PHOTOREACTIONS OF METHYLFURANS WITH CHLORANIL显示文摘The CIDNP observations indicated that photoreaction of methylfurans with chloranilresulted not only furylmethyl hydroxyphenyl ethers via radical pairs but inducedfuryl radical isomerization to the derivatives of cyclopropene,propadiene and pyran.Ling jiang CHENG~(1,2) Han Cheng YUAN~3 Er Cheng LI~2 Bao Zhen YAN~3 Jian Hua XU~4 Guang Zhi XU~2 1 Institute of Photographic Chemistry,Chinese Academy Of Sciences,Beijing 100101 2 Institute of Chemistry,Chinese Academy of Sciences,Beijing 100080 3 Department of Applied Chemistry,Beijing Institute of Chemical Technology,Beijing 100029 4 Department of Chemistry,Nanjing University,Nanjing,Jiangsu 210008 1993Chinese Chemical Letters1993,4,4:1
15PHOTO-CIDNP STUDIES OF PHTHALIMIDE DERIVATIVES IN THE PRESENCE OF TRIETHYLAMINE显示文摘The photoreactivity of some phthalimides was tested by CIDNP studies on the reactionswith triethylamine.Ling Jiang CHENG~(1,2) Han Cheng YUAN~3 Hua Pin PU~4 Bao Zhen YAN~3 Er Cheng LI~2 Jian Hua XU~4 Jin Shi MA~1 Guang Zhi XU~2 1 Institute of Photographic Chemistry,Chinese Academy Of Sciences,Beijing 100101 2 Institute of Chemistry,Chinese Academy of Sciences,Beijing 100080 3 Department of Applied Chemistry,Beijing Institute of Chemical Technology,Beijing 100029 4 Department of Chemistry,Nanjing University,Nanjing,Jiangsu 210008 1993Chinese Chemical Letters1993,4,4:1
16Fabrication, characterization and electrocatalytic properties of a solid modified electrode based on PW11O39 Fe ( Ⅲ) ( H2O)4- and chitosan 显示文摘HUA Y J WANG C T DUAN H er al 2011Electrochim Acta2011,58,:1
17Photoluminescence properties of TiO2 : Eu^3+ thin films deposited on different substrates 显示文摘Peng Ai Hua Xie Er Qing Jia Chang Wen 2005Materials letters2005,59,2930:1
18Midkine is an autocrine activator of STAT3 in 3T3 - L1 cells显示文摘Cernkovich ER Deng J Hua K 2007Endocrinology2007,148,4:1
19Pestalachlorides A-C, antifungal metabolites from the plant endophytic fungus Pestalotiopsis adusta显示文摘LI ER WEI JIANG LI HUA GUO LIANG DONG 2008Bioorgan Med Chem2008,16,:1
20显示文摘HUA Er SHINO OHKAWA MASAYASU IIDA 2007Colloids Surf:A2007,301,:1
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