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| 1 | Nutrients concentration and changes in decade-scale in the central Bohai Sea显示文摘The nutrients contents and distributions are discussed briefly, based on the data obtained in 1998~1999. Besides explanation of the results,a 20 a time series data of nutrients and biological parameters for central Bohai Sea are reviewed. It is found that both concentration and relative content of nutrients have been changed dramatically. The increase of nitrogen and decrease of phosphate and silicate led to the dramatically increase of N/P ratio and the decrease of Si/N ratio. The situation of nitrogen limiting in central Bohai Sea is gradually changing to that of relative lack of phosphate and silicate. The decrease of the Huanghe River input to the Bohai Sea may be responsible for this change. These in turn may limit the growth of diatom and thus promote the development of pyrrophyta if other conditions (e.g. temperature and hydrodynamics) are suitable. We conclude that this may be the major inducement factor of pyrrophyta red tide in the Bohai Sea. | Yu Zhigang 1,Mi Tiezhu 1,Yao Qingzhen 1,Xie Baodong 1,Zhang Jing 11 .CollegeofChemistryandChemicalEngineering ,OceanUniversityofQingdao ,Qingdao 2 6 6 0 0 3 ,China | 2001 | Acta Oceanologica Sinica2001，20，1： | 18 |
| 2 | Effect of pitch angle on initial stage of a transport airplane ditching显示文摘Airworthiness regulations require that the transport airplane should be proved to ensure the survivability of the ditching for the passengers. The planned ditching of a transport airplane on the calm water is numerically simulated. The effect of pitch angle on the impact characteristics is especially investigated by a subscaled model. The Reynolds-averaged Navier-Stokes (RANS) equations of unsteady compressible flow are solved and the realizable j-e equations are employed to model the turbulence. The transformation of the air-water interface is tracked by volume of fluid (VOF) model. The motion of the rigid body is modeled by dynamic mesh method. The initial ditching stage of the transport airplane is analyzed in detail. The numerical results show that as the pitching angle increases, the maximal normal force decreases and the pitching motion becomes much gentler. The aft fuselage would be sucked down by the water and lead to pitching up, whereas the low horizontal tail prevents this trend. Consequently, the transport aircraft with low horizontal tail should ditch on the water at an angle between 10 and 12 as a recommendation. | Guo Baodong Liu Peiqing Qu Qiulin Wang Jiawen | 2013 | Chinese Journal of Aeronautics2013，26，1： | 18 |
| 3 | Effect of thermomechanical treatment on microstructure and properties of Cu-Cr-Zr-Ag alloy显示文摘The effects of thermomechanical treatment on the properties and microstructure of Cu-Cr-Zr alloy and Cu-Cr-Zr-Ag alloy were investigated. Ag addition improves the mechanical properties of the alloy through solid solution strengthening and brings a little effect on the electrical conductivity of the alloy. A new Cu-Cr-Zr-Ag alloy was developed, which has an excellent combination of the tensile strength, elongation, and electrical conductivity reaching 476.09 MPa, 15.43% and 88.68% IACS respectively when subjected to the optimum thermomechanical treatment, i.e., solution-treating at 920°C for 1 h, cold drawing to 96% deformation, followed by aging at 400°C for 3 h. TEM analysis re-vealed two kinds of finely dispersed precipitates of Cr and Cu4Zr. It is very important to use the mechanisms of solid solution strengthening, work hardening effect as well as precipitate pinning effect of dislocations to improve tensile strength of the alloy without adversely affecting its electrical conductivity. | XIE Haofeng MI Xujun HUANG Guojie GAO Baodong YIN Xiangqian LI Yanfeng | 2011 | Rare Metals2011，30，6： | 17 |
| 4 | Recognition on the forming-vanishing process and underlying mechanisms of the hypoxia off the Yangtze River estuary显示文摘On the basis of compiled multidisciplinary historical data in 2006–2007 and incorporation of relevant simulation results and remote sensing data, we performed an in-depth study of the generation and dissipation process of the hypoxic zone and its distribution morphology and structure off the Yangtze River estuary. Based on the hydrological circulation dynamics, reproduction of phytoplankton(leading to the decomposition of organic matter), and other factors, we comprehensively and systematically investigated the generation and dissipation of the hypoxic zone and underlying mechanisms for the seasonal variation in its position, explored the multi-factorial synergistic reactions during the generation and dissipation process of the hypoxic zone, and revealed the controlled mechanism for the morphology and structure of the hypoxic zone's distribution. Our studies indicate that in the winter and spring seasons, the hydrological environment off the Yangtze River estuary provides a water body with relatively low contents of dissolved oxygen(DO), which is the background for the formation of a hypoxic zone. After entering into the summer season, the hypoxic zone gradually develops towards the north and becomes mature. Because of the impact of the terrain, local decomposition of organic matter, and upwelling of the Kuroshio subsurface water in July–August, the hypoxic zone off the Yangtze River estuary exhibits the characteristics of discontinuous distribution in space and has a south and north 'dual-core' structure in the inner continental shelf. In addition, there is a hypoxic core in the eastern outer continental shelf. The degrees of hypoxia vary for different areas; they are strongest overall in the north, next strongest in the south; they are weakest on the outer continental shelf. In summer, the hypoxic zone in the north is related to the northward differentiation of the southern hypoxic zone and results from local development and intensification. In August, the hypoxic zone in the north reaches its peak, and after September, it rapidly retreats southward and disappears because of weakening stratification. In the fall, there is hypoxic zone along the coast of Zhejiang in the south, and there is also a low-DO area to the southwest of Jeju Island, with both zones disappearing rapidly. In addition, the change of dynamic environment also causes the low-DO area of the outer continental shelf to move outward in the fall. The variation in the intensity of the stratification and its cumulative effects as a barrier of vertical DO transportation over long periods of time have a significant impact on the degree of hypoxia in the hypoxic zone. In addition, the seasonal variations in the size of the stratified region, intensity of each current system/water mass, upwelling, front, and high-value area of phytoplankton biomass jointly restrict the extension of the hypoxic zone in the inner continental shelf and latitudinal(south-north direction) movement of its location off the Yangtze River estuary. The combined effect of dynamic factors, such as that of the Kuroshio subsurface water, causes a low-DO core in the outer continental shelf. The bottom cold water to the north of the East China Sea is the dynamic basis for the formation of the low-DO area to the southwest of Jeju Island during the fall season. The special seabed topography and mud area distribution off the Yangtze River estuary have a certain degree of influence on the development of the hypoxic zone. The generation and dissipation of the hypoxic zone and its distribution morphology off the Yangtze River estuary, and seasonal variation of its structure and position are a result of the synergistic effects of various factors. | WEI QinSheng WANG BaoDong CHEN JianFang XIA ChangShui QU DaPeng XIE LinPing | 2015 | Science China Earth Sciences2015，58，4： | 15 |
| 5 | Mineral weathering and element cycling in soil-microorganism-plant system显示文摘Soil is an essential part of the critical zone,and soil-microbe-plant system serves as a key link among lithosphere,biosphere,atmosphere and hydrosphere.As one of the habitats with the richest biodiversity,soil plays a critical role in element biogeochemistry on the earth surface(weathered crust).Here we review the soil biological processes that are relevant to mineral weathering,element cycling,and transformation,with an emphasis on rock weathering mediated by soil microbes,plant root and the rhizosphere. | ZHU YongGuan DUAN GuiLan CHEN BaoDong PENG XinHua CHEN Zheng SUN GuoXin | 2014 | Science China Earth Sciences2014，57，5： | 14 |
| 6 | Effect of kidney-reinforcing,blood-activating and stasis-removing recipes on adhesion molecule expression of bone marrow mesenchymal stem cells from chronic aplastic anemia patients显示文摘OBJECTIVE:To explore the effect of kidney-reinforcing,blood-activating and stasis-removing recipes on adhesion molecule expression of bone marrow mesenchymal stem cells(MSCs) from patients with chronic aplastic anemia(CAA).METHODS:We used threeTraditional Chinese Medicine recipes,namely a kidney-reinforcing recipe(KRR),blood-activating and stasis-removing recipe(BASRR),and kidney-reinforcing,blood-activating and stasis-removing recipe(KRBASRR),and a normal saline control to prepare herbal medicine serum in Sprague Dawley rats.Thirty CAA patients were enrolled in the experimental group,including 17 kidney-Yang deficient patients and 13 kidney-Yin deficient patients.Ten healthy individuals were included in the control group.MSCs were isolated from bone marrow samples,and the cell density was observed to measure their proliferation ability by microscopy on days 2,7,and 14 after isolation.In addition,the expression of adhesion molecules of bone marrow MSCs(CD106,CD49d,CD31 and CD44) were detected by flow cytometry after 48 h of treatment with the four different herbal medicine serums.RESULTS:The proliferation of MSCs from kidney-Yang deficient and kidney-Yin deficient patients was weaker than that of MSCs from the control group.The expression of all adhesion molecules of bone marrow MSCs from CAA patients was obviously lower than that in the control group(P< 0.01).The expression of CD49d and CD31 in MSCs from patients with a kidney-Yin deficiency was lower than in those with a kidney-yang deficiency(P< 0.05 and P<0.01,respectively).For kidney-Yang deficient patients,CD31 expression in the KRBASRR group was significantly higher than that in the BASRR group(P<0.01),while CD44 in the KRBASRR group was significantly higher than that in both KRR and BASRR groups(P<0.01).For kidney-Yin deficient patients,CD106 and CD49d expression in the KRBASRR group was obviously higher than that in the KRR group(P<0.05),while CD31 and CD44 expression in the KRBASRR group was significantly higher than that in both KRR and BASRR groups(P< 0.05 and P<0.01,respectively).CONCLUSION:The bone marrow microenvironment in CAA patients is abnormal.The effect of KRBASRR may be better than that of KRR and BASRR for kidney-Yang deficient and kidney-Yin deficient patients by improving the expression levels of MSC adhesion molecules. | Baodong Ye Dan Chen Dijiong Wu Xiangping Wu Xiang Zhang Yuhong Zhou Yiping Shen Keding Shao Qinhong Yu | 2012 | Journal of Traditional Chinese Medicine2012，32，4： | 12 |
| 7 | Gastrointestinal imaging-practical magnetic resonance imaging approach显示文摘Over the past two decades, advances in cross-sectionalimaging such as computed tomography and magneticresonance imaging(MRI) have dramatically changed theconcept of gastrointestinal imaging. MR is playing anincreasing role in the evaluation of gastrointestinal disorders. MRI combines the advantages of excellent soft-tissue contrast, noninvasiveness, functional informationand lack of ionizing radiation. Furthermore, recent developments of MRI have led to improved spatial and temporal resolution as well as decreased motion artifacts. Inthis article we describe the technical aspects of gastroin-testinal MRI and present a practical approach for a well-known spectrum of gastrointestinal disease processes. | Baodong Liu Miguel Ramalho Mamdoh AlObaidy Kiran K Busireddy Ersan Altun Janaka Kalubowila Richard C Semelka | 2014 | World Journal of Radiology2014，6，8： | 11 |
| 8 | Chemicohydrographic characteristics of the Yellow Sea Cold Water Mass显示文摘Based on the field data obtained during summer cruises in 2006, the overall perspective of chemical and hydrographic characteristics of the Yellow Sea Cold Water Mass(YSCWM) are discussed through the crossYSCWM transect profiles and horizontal distributions of hydrological and chemical variables, with emphasis on the differences between the northern Yellow Sea Cold Water Mass(NYSCWM) and the southern Yellow Sea Cold Water Mass(SYSCWM). The results show that YSCWM is characterized by low temperature(<10°C) and dissolved oxygen(DO) concentration, high salinity(>32.0) and nutrient concentrations. Compared to the SYSCWM, the NYSCWM possesses lower values of temperature, salinity and nutrient concentrations but higher values of DO.Also its smaller variation ranges of variables(except for temperature) demonstrate that NYSCWM is more uniform than that of SYSCWM. In addition, thermocline is more intensive in the SYSCWM than that of NYSCWM.Furthermore, DO and Chl a maxima appear at the depth of 30 m in the SYSCWM, while these phenomena are not obvious in the NYSCWM. | XIN Ming MA Deyi WANG Baodong | 2015 | Acta Oceanologica Sinica2015，34，6： | 10 |
| 9 | Potential impacts of Three Gorges Dam in China on the ecosystem of East China Sea显示文摘The Changjiang River in China was dammed in 2003. The possible changes in matters fluxes from the river downstream after the completion of Three Gorges Dam and their potential impacts on the ecosystem of the East China Sea are discussed.The estuarine and coastal waters in the East China Sea were heavily fertilized by the inflow of nutrient-rich freshwater from the Changjiang River,which has led to severe eutrophication and frequent harmful algal blooms,thus worsening the ecosystem health in this area. Analysis showed that the nutrient loadings are very likely to be reduced in the lower Changjiang River due to the construction of Three Gorges Dam. Especially for the total phosphorus,the discharges to the East China Sea will be reduced by one-third,which would relieve the severe eutrophication in this area. However,the expected decrease in the riverine silicate discharge would lead the ratio of silicon to nitrogen to be much less than 1 in the estuarine and coastal waters and thus may cause an elevation of flagellate growth. The changes in the annual water discharges and their seasonal distributions below the dam will be minor. Reduction of suspended particulate matter loading,due to the sedimentation behind the dam,will reduce the nutrient loadings of the particulate form especially for phosphorus,and decrease the turbidity of estuarine and coastal waters. On the other hand,this may enhance the erosion of the delta and the coasts as well as modifythe benthic ecosystem. | WANG Baodong BROCKMANN Uwe | 2008 | Acta Oceanologica Sinica2008，27，1： | 10 |
| 10 | Experimental study on combustion characteristics of Chinese RP-3 kerosene显示文摘In order to illustrate the combustion characteristics of RP-3 kerosene which is widely used in Chinese aero-engines, the combustion characteristics of RP-3 kerosene were experimentally investigated in a constant volume combustion chamber. The experiments were performed at four different pressures of 0.1 MPa, 0.3 MPa, 0.5 MPa and 0.7 MPa, and three different temperatures of 390 K,420 K and 450 K, and over the equivalence ratio range of 0.6–1.6. Furthermore, the laminar combustion speeds of a surrogate fuel for RP-3 kerosene were simulated under certain conditions. The results show that increasing the initial temperature or decreasing the initial pressure causes an increase in the laminar combustion speed of RP-3 kerosene. With the equivalence ratio increasing from 0.6 to 1.6, the laminar combustion speed increases initially and then decreases gradually.The highest laminar combustion speed is measured under fuel rich condition(the equivalence ratio is 1.2). At the same time, the Markstein length shows the same changing trend as the laminar combustion speed with modification of the initial pressure. Increasing the initial pressure will increase the instability of the flame front, which is established by decreased Markstein length. However, different from the effects of the initial temperature and equivalence ratio on the laminar combustion speed,increasing the equivalence ratio will lead to a decrease in the Markstein length and the stability of the flame front, and the effect of the initial temperature on the Markstein length is unclear. Furthermore, the simulated laminar combustion speeds of the surrogate fuel agree with the corresponding experimental datas of RP-3 kerosene within 10% deviation under certain conditions. | Ma Hongan Xie Maozhao Zeng Wen Chen Baodong | 2016 | Chinese Journal of Aeronautics2016，29，2： | 9 |
| 11 | Lotus seed skin proanthocyanidin extract exhibits potent antioxidant property via activation of the Nrf2-ARE pathway显示文摘Lotus seed is well known as traditional food and medicine,but its skin is usually discarded.Recent studies have shown that lotus seed skin contains a high concentration of proanthocyanidins that have multi-functions,such as antioxidation,anti-inflammation,and anti-cancer effects.In the present study,we aimed to isolate and purify the proanthocyanidins from lotus seed skin by acetone extraction and rotary evaporation,identify their chemical structures by HPLC-MS-MS and NMR,and further investigate the antioxidant properties of the extract purified by macroporous resin (PMR) from lotus seed skin both in vitro and in vivo.The results showed that PMR mainly contained oligomeric proanthocyanidins,especially dimeric procyanidin B1 (PB1),procyanidin B2 and procyanidin B4.Although it had limited ability to directly scavenge radicals in vitro,PMR could significantly enhance the expressions of antioxidant proteins via activation of nuclear factory-related factor 2 (Nrf2)-antioxidant response element (ARE) pathway in HepG2 cells.Molecular data revealed that PB1,a major component in PMR,stabilized Nrf2 by inhibiting the ubiquitination of Nrf2,which led to subsequent activation of the Nrf2-ARE pathway,including the enhancements of Nrf2 nuclear translocation,Nrf2-ARE binding and ARE transcriptional activity.Moreover,the in vivo results in high fat diet-induced mice further verified the powerful antioxidant property of PMR.These results revealed that lotus seed skin is a promising resource for functional food development. | Tao Li Qili Li Weiguo Wu Yong Li De-xing Hou Hua Xu Baodong Zheng Shaoxiao Zeng Yang Shan Xiangyang Lu Fangming Deng Si Qin | 2019 | Acta Biochimica et Biophysica Sinica2019，51，1： | 8 |
| 12 | Nutrient composition and distributions in coastal waters impacted by the Changjiang plume显示文摘Four cruises were conducted during 2002-2003 in the Changjiang Estuary and adjacent coastal areas. The data presented show a clear coast to open sea gradient in nutrients related to the river inputs. Maximum values of chlorophyll a were typically observed at intermediate salinities at surface water and coincided with non-conservative decreases in nutrients along the salinity gradient,indicating that removal of nutrients was related to phytoplankton uptake. The seasonal variations of nutrient concentrations were just opposite to those of chlorophyll a,indicating that the seasonal variations of nutrients were mainly controlled by phytoplankton uptake,whereas riverine inputs merely weakened or balanced its extent. During the estuarine mixing,phosphate demonstrated some remobilization during all the four cruises; whereas both conservative and non-conservative behaviors for dissolved inorganic nitrogen and silicate were observed in the study area,indicating that both biotic and abiotic events may affect their behaviors during the estuarine mixing. Under the influence of freshwater inputs with high value of ratio of nitrogen to phosphorus,the estuarine and coastal waters impacted by the Changjiang plume were high (>30) in ratio of nitrogen to phosphorus,but rates of primary production were apparently not constrained by any kind of nutrient elements. However,the low (<1) ratio of silicate to nitrogen in most of the study area might be linked with the rapidly increasing frequency of harmful algal bloom(HAB) incidents in recent years in the coastal waters impacted by the Changjiang plume. | WANG Xiulin WANG Baodong ZHANG Chuansong SHI Xiaoyong ZHU Chenjian XIE Linping HAN Xiurong XIN Yu WANG Jiangtao | 2008 | Acta Oceanologica Sinica2008，27，5： | 7 |
| 13 | Novel synthesis of fly-ash-derived Cu-loaded SAPO-34 catalysts and their use in selective catalytic reduction of NO with NH3显示文摘A combined acid–alkali hydrothermal method was used to prepare fly ash–derived SAPO-34 molecular sieves from a thermal power plant in Inner Mongolia(China).The specific surface area of the prepared fly-ash-derived SAPO-34 molecular sieves was 579 m^2 g^-1,the total pore volume was about 0.27 cm^3 g^-1,and the pore size was 0.56 nm;the molar ratios of Al2O3:P2O5:SiO2 were 1:0.86:0.45.Cu/SAPO-34 catalysts were prepared by impregnation of low-cost fly-ash-derived SAPO-34 molecular sieves as a support and tested in selective catalytic reduction with NH3(NH3-SCR).Powder X-ray diffraction(XRD),N2 adsorption–desorption,X-ray photoelectron spectroscopy(XPS),H2 temperatureprogrammed reduction(H2-TPR),NH3 temperature-programmed desorption(NH3-TPD),electron paramagnetic resonance(EPR),nuclear magnetic resonance(NMR),X-ray fluorescence analysis(XRF)and scanning electron microscopy(SEM)were used for catalyst characterization and investigation of the relationships between the catalyst structure and the catalytic activity.The actual silica:alumina ratio of the molecular sieves did not increase with increasing Cu loading,indicating that increasing the Cu loading does not change the original structure of the SAPO-34 molecular sieves.The XRF and NMR results showed that replacement by Cu results in more Si islands.The molecular sieve acidity decreased because of the increased number of Si islands.The NH3-TPD results showed that for the Cu/SAPO-34 catalysts there was a low correlation between the low-temperature activity and the amount of acidic sites.SCR activity is closely related to the location of Cu.The 4.47 Cu/SAPO-34 catalyst has the highest isolated Cu2+showed the highest NH3-SCR activities(>90%)at 250–350℃.This work opens up new avenues for recycling fly ash formed in coal-fired power plants(reducing environmental pollution)and developing low-cost SCR catalysts for NOx pollution control. | Ge Li Baodong Wang Qi Sun Wayne Qiang Xu Ziran Ma Hongyan Wang Daojun Zhang Jiali Zhou | 2019 | Green Energy & Environment2019，4，4： | 6 |
| 14 | Self-powered versatile shoes based on hybrid nanogenerators显示文摘摩擦电 nanogenerator (TENG ) 和一个电磁的发电机(EMG ) 是 hybridized 收获人的机械精力。由 triboelectrification 和电磁的正式就职的一个有效连词,有 1.2 厘米的 2 厘米和高度的半径的 hybridized nanogenerator 能在颤动的 100 个周期以后控告 1,000 F 电容器到 5.09 V。这微型大小的混合 nanogenerator 然后能在鞋被嵌入用作一个精力房间。典型室外的 applicationsincluding 与一台全球放系统(GPS ) 设备开车,为一节 Li 离子电池和成功地表明的房间 phonewere 充电,建议它在聪明的便携电子学和士兵的未来西装的潜在的应用程序。 | Long Liu Wei Tang Chaoran Deng Baodong Chen Kai Han Wei Zhong Zhong Lin Wang | 2018 | Nano Research2018，11，8： | 6 |
| 15 | Efficacy and advantages of modified Traditional Chinese Medicine treatments based on'kidney reinforcing'for chronic aplastic ane-mia:a randomized controlled clinical trial显示文摘OBJECTIVE:To compare the efficacy of modified treatments based on 'kidney reinforcing' in the management of chronic aplastic anemia(CAA),and explore their advantages and specialties.METHODS:One hundred and eleven patients with CAA were randomly divided into three groups:kidney reinforcing alone(KA),'kidney reinforcing and Qi tonifying'(KQ),and 'kidney reinforcing and blood circulation invigorating'(KC).Normal and positive control groups were also formed.All patients were treated for 6 months(two courses).Hemograms,Traditional Chinese Medicine(TCM) syndrome scores,and therapeutic effects were assessed,and changes in T-lymphocyte subsets,regulatory T cells and cytokines were detected.RESULTS:The KQ and KC groups had lower TCM syndrome scores than the positive control group after 6 months(P < 0.05).The KQ group had a higher overall efficacy than the positive control group after 3 months(P < 0.05),while platelet counts increased in the KC group after 6 months(P < 0.05).CD3+ T-lymphocyte ratios decreased only in the KQ group,while CD3 + CD4 + CD8-Tlymphocytes increased only in the KC group after 6 months(P <0.05).Levels of interferon-γ,tumor necrosis fac-tor-α,interleukin(IL)-2 and IL-6 decreased and levels of IL-4 and IL-10 increased in all treated groups after 6 months.Levels of IL-6 in the KQ and KC groups were lower than those in the positive control group(P < 0.05).CONCLUSION:Treatments based on kidney reinforcing have a rebalancing effect on cytotoxic and T helper cells,and regulate expression of interferon-γ,IL-2,IL-6 and IL-4.KQ may be more effective in treating CAA,and KC may have an advantage in platelet recovery. | Wu Dijiong Shen Yiping Ye Baodong Fang Bingmu Lin Shengyun Chen Zhilu Jiang Huifang Feng Changwei He Lüyuan Gao Yanting Liu Yonglin Liu Yonghua Zhu Jiajia Wu Liqiang Shao Keding Zhou Yuhong | 2016 | Journal of Traditional Chinese Medicine2016，36，4： | 6 |
| 16 | Arsenic uptake, accumulation and phytofiltration by duckweed (Spirodela polyrhiza L.)显示文摘This study investigates arsenic (As) accumulation and tolerance of duckweed Spirodela polyrhiza L. and its potential for As phytofiltration. S. polyrhiza was able to survive in high concentration of As(V) solution. The EC 50 values (± SE) based on the external As(V) were (181.66 ± 20.12) μmol/L. It accumulated (999 ± 95) mg As/kg dw when exposed in 320 μmol/L As(V) solution for one week, and was able to take up appropriately 400 mg As/kg dw in tissues without a significant biomass loss. The EC 50 values (the effective concentration of As(V) in the nutrient solution that caused a 50% inhibition on biomass production) was (866 ± 68) mg/kg dw for the tissues, indicating that S. polyrhiza had a high capability of As accumulation and tolerance. The uptake kinetic parameters V max was (55.33 ± 2.24) nmol/(g dw·min) and K m was (0.144 ± 0.011) mmol/L. Within 72 hr, S. polyrhiza decreased As concentration in the solution from 190 to 113 ng/mL with a removal rate of 41%. The study suggested that this floating aquatic plant has some potential for As phytofiltration in contaminated water bodies or paddy soils. | Xin Zhang Ying Hu Yunxia Liu Baodong Chen | 2011 | Journal of Environmental Sciences2011，23，4： | 5 |
| 17 | Mechanisms leading to the frequent occurrences of hypoxia and a preliminary analysis of the associated acidification off the Changiiang estuary in summer显示文摘Based on literature data and shipboard observations,this study investigated the main environmental characteristics of the seafloor topography,current field,front,and upwelling that are closely related to hypoxia occurrence off the Changjiang estuary.The physical processes of the plume front and upwelling off the Changjiang estuary in summer were coupled.The vertical distribution pattern of the plume front was closely related to the upwelling.By reviewing and analyzing the historical summer hypoxia events off the Changjiang estuary,we statistically demonstrated the spatial structure of the horizontal distribution of the hypoxic zone and investigated the location of occurrence zone of the hypoxia.We found that the dissolved oxygen(DO)concentration on the inner continental shelf off the estuary showed a'V'shape in relation to station depth.Therefore,we noted that the hypoxic water on the inner continental shelf mostly occurred on the slopes with steep seafloor topography.Base on the current understanding of the hypoxic mechanisms off the Changjiang estuary,we analyzed the biogeochemical mechanisms that could cause the steep terrain off the Changjiang estuary to become the main areas prone to summer hypoxia and explained the internal relations between the location of the hypoxic zone on the slopes and the plume front and upwelling.The plume front and upwelling off the Changjiang estuary and their coupling were important driving forces of summer hypoxia.The continuous supply of nutrients affected by the interaction of the plume front extension of the Changjiang Diluted Water(CDW)and upwelling and the favorable light conditions were important mechanisms causing the phytoplankton blooms and benthic hypoxia off the Changjiang estuary in summer.By analyzing oxygen utilization,organic carbon mineralization,and nutrient regeneration in the hypoxic zone,we observed that the significant oxygen utilization process off the Changjiang estuary in summer also mainly occurred near the steep slopes with front and upwelling features and confirmed the apparent nutrient loss in the benthic hypoxic zone.Meanwhile,our analysis revealed that the sediment resuspension in the benthic boundary layer in the mud areas off the Changjiang estuary could also affect the oxygen utilization and mineralization of organic carbon and nutrient recycling and regeneration.This study also demonstrated that the steep terrain off the Changjiang estuary was the main location for summer acidification,and the coupling between the plume front and upwelling on the steep slopes was an important physical driving force inducing summer benthic acidification.Finally,we discussed issues to address in future studies of the hypoxic zone and water acidification off the Changjiang estuary. | WEI QinSheng WANG BaoDong YU ZhiGang CHEN JianFang XUE Liang | 2017 | Science China Earth Sciences2017，60，2： | 5 |
| 18 | Soil fungal community is more sensitive to nitrogen deposition than increased rainfall in a mixed deciduous forest of China显示文摘Nitrogen(N)deposition and intensified rainfall can strongly affect soil microbial community,but compared with available studies on bacteria,those on soil fungi are quite limited.Here we carried out a field experiment in a mixed deciduous forest of China to study the influences of increased N deposition and rainfall on soil fungi by using quantitative PCR and high-throughput sequencing method.The results demonstrated that(1)N addition significantly increased fungal abundance and alpha diversity(richness,Shannon index and Invsimpson index),changed fungal community composition at OTU level,and marginally increased the relative abundance of Ascomycota and Zygomycota,while water addition showed no remarkable effects on fungal abundance,biodiversity and community composition.(2)N addition significantly increased the richness of saprotrophic fungi and pathogenic fungi,and the relative abundance of saprotrophic fungi,but water addition only slightly increased the abundance of pathogenic fungi.(3)Fungal composition dissimilarity closely correlated with the disparity of soil parameters as a whole.Soil NH_(4)^(+)-N exhibited strong positive correlation with the richness of pathogenic fungi and mycorrhizal fungi,while both soil moisture and NH_(4)^(+)-N tightly correlated with soil fungal abundance and alpha diversity indices.We concluded that in this N-limited but non-water-limited forest ecosystem,N deposition posed stronger effects on soil fungi than increased rainfall,partially mediated by changes in soil properties. | Aihua Zhao Lei Liu Baodong Chen Wei Fu Wei Xie Tianle Xu Wei Zhang Qing Ye Haiyan Feng Shenglei Fu | 2020 | Soil Ecology Letters2020，2，1： | 5 |
| 19 | Pancreatitis-imaging approach显示文摘Pancreatitis is defined as the inflammation of the pancreas and considered the most common pancreatic disease in children and adults. Imaging plays a significant role in the diagnosis, severity assessment, recognition of complications and guiding therapeutic interventions. In the setting of pancreatitis, wider availability and good image quality make multi-detector contrastenhanced computed tomography(MD-CECT) the most used imaging technique. However, magnetic resonance imaging(MRI) offers diagnostic capabilities similar to those of CT, with additional intrinsic advantages including lack of ionizing radiation and exquisite soft tissue characterization. This article reviews the proposed definitions of revised Atlanta classification for acute pancreatitis, illustrates a wide range of morphologic pancreatic parenchymal and associated peripancreatic changes for different types of acute pancreatitis. It also describes the spectrum of early and late chronic pancreatitis imaging findings and illustrates some of the less common types of chronic pancreatitis, with special emphasis on the role of CT and MRI. | Kiran K Busireddy Mamdoh AlObaidy Miguel Ramalho Janaka Kalubowila Liu Baodong Ilaria Santagostino Richard C Semelka | 2014 | World Journal of Gastrointestinal Pathophysiology2014，5，3： | 4 |
| 20 | Physical-biogeochemical interactions and potential effects on phytoplankton and Ulva prolifera in the coastal waters off Qingdao(Yellow Sea, China)显示文摘In recent years, the spectacular massive green tide of Ulva prolifera has become a recurrent phenomenon appearing every summer in the coastal waters off Qingdao(Yellow Sea, China), attracting the attention of scientists and local government. Based on multidisciplinary data collected during summer and winter, this study focuses on the hydrological characteristics and regional biogeochemical processes in coastal waters off Qingdao.The results show that the boundary of the Yellow Sea Cold Water Mass(YSCWM) can reach the Qingdao coastal region in summer and is locally raised to the upper layers to form coastal upwelling beyond tidal mixing and favorable wind. The regional summer upwelling off the Qingdao coast effectively enriches the nutrient concentrations in the upper water column and thus promotes growth of phytoplankton but reduces the dissolved oxygen(DO) concentration and pH value in the bottom. The regional summer upwelling off Qingdao coast may facilitate the growth and regional blooming of the U. prolifera that migrate to this region with the southerly wind.Additionally, the effects of the front on the aggregation of U. prolifera may be significant. In winter, the Yellow Sea Warm Current(YSWC) extends and spreads along the offshore region off the Subei Shoal towards the Qingdao coastal sea. This tongue-shaped warm water meets the cold coastal water off Qingdao, which leads to the formation of a physical front. As a consequence, remarkable fronts of nutrient and chlorophyll a(Chl a) also form between the shoreward warm water and the cold coastal water. This study increases the understanding of the interactions between the regional physical, chemical, and biological processes off the Qingdao coast. | Qinsheng Wei Baodong Wang Qingzhen Yao Zhigang Yu Mingzhu Fu Junchuan Sun Bochao Xu Linping Xie Ming Xin | 2019 | Acta Oceanologica Sinica2019，38，2： | 4 |
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