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| 1 | Clay surface modification and its coagulation of red tide organisms显示文摘Surface modification of montmorillonite by means of Mg2+ insertion reaction has been studied and a positively charged montmorillonite has been prepared. The effects of preparation temperature and Mg2+ concentration on the positive charge property of the clay and on the clay coagulating Heterosigma akashiwo have been studied. The results showed that the modified clay enhanced the coagulation and the used amount decreased to 1/5—1/10 of the original. The removal rates of Heterosigma akashiwo were correlated positively with positive charge on the clay in accordance with theoretical model. | Zhiming Yu Xiaoxia Sun Xiuxian Song Bo Zhang | 1999 | Chinese Science Bulletin1999，44，7： | 16 |
| 2 | Effect of Yang-activating and stasis-eliminating decoction from Traditional Chinese Medicine on intestinal mucosal permeability in rats with ulcerative colitis induced by dextran sulfate sodium显示文摘OBJECTIVE: To evaluate the effect of decoction prepared with Yang-activating and stasis-eliminating medicinals from Traditional Chinese Medicine(TCM) on the intestinal mucosal permeability in rats with ulcerative colitis induced by dextran sulfate sodium(DSS).METHODS: Totally 55 male Wistar rats(body weight of 170-190 g) were randomly divided into the blank group(n = 10) and the model duplication group(n = 45). The blank group was not intervened, while the other was modeled with 5% dextran sulfate sodium by gavaging in a dosage of4 m L per day to induce ulcerative colitis, a total of7 days. Then, the model rats were divided into model blank group, mesalazine group and TCM group,and each group was consisted of 15 rats. They were given retention enema 10 min with normal saline,mesalazine enema(0.036 g/m L), and Yang-activating and stasis-eliminating decoction [0.54 g/m L of a decoction boiled by Puhuang(Pollen Typhae), Xiebai(Bulbus Allii Macrostemonis) and Wulingzhi(Faeces Trogopteri)] for 10 days respectively. Afterwards,all of the rats were evaluated by disease activity index(DAI), histological changes of distal colon, expression of occludin protein and ultrastructure of intestinal epithelial cells. Furthermore, ratio of lactulose to mannitol(L/M) discharged in urine was evaluated.RESULTS: Comparing the results between TCM and model control groups, scores of DAI and histological lesions decreased significantly(P = 0.000 <0.01), ultrastructures of intestinal epithelial cells and tight junctions were more complete. The expression of occludin protein(P = 0.001 < 0.01) increased while the L/M value decreased significantly(P = 0.000 < 0.01) in TCM group. There was no statistical difference between the TCM and mesalazine groups in results of each item(P > 0.05).CONCLUSION: The decoction prepared with Yang-activating and stasis-eliminating TCM medicianls can restore intestinal mucosal epithelial cells and tight junctions the model rats with ulcerative colitis; it can reduce histological lesions and protect the permeability of intestinal mucosa barrier in the rats as well. | Shi Lijie Shi Lei Liu Leilei Feng Xiuxian Wang Jing Yang Qiang Chai Shiwei Gou Jing Zang Fenglin He Sufei | 2017 | Journal of Traditional Chinese Medicine2017，37，4： | 7 |
| 3 | Effects of ammonium and nitrate on encystment and growth of Scrippsiella trochoidea显示文摘To avoid unfavorable environmental conditions, Scrippsiella trochoidea is capable of forming a resting cyst in the process of growth. In the present study,we investigated the effects of nitrate and ammonium on the growth and encystment of S. trochoidea. We incubated S.trochoidea in modified f/2 media without nitrogen and silicate in flasks. The flasks were divided into two groups.Nitrate was added as a nitrogen source in the first group,and ammonium was added in the second group. The concentrations of the nitrogen compounds were 0, 10, 30, 60,and 90 lmol/L. The results indicate that NO3--N favors cell growth, and the cultures with a higher concentration of NO3--N were ineffective at forming cysts. In contrast,NH4--N promoted cell growth and cyst formation. At similar concentrations as NO3--N, NH4--N had a toxic effect on cell growth and increased the cyst formation ratio.Thus, the NH4--N concentration is an important factor for controlling encystment. We believe that the impact of NH4--N in inducing cyst formation may be a useful feedback mechanism in ecological systems. | Zhifu Wang Zhiming Yu Xiuxian Song Xihua Cao Yue Zhang | 2014 | Chinese Science Bulletin2014，59，33： | 4 |
| 4 | Nano-and microphytoplankton community characteristics in brown tide bloom-prone waters of the Qinhuangdao coast,Bohai Sea, China显示文摘Since 2009, the newly recorded species Aureococcus anophagefferens has successively induced brown tides in the Qinhuangdao coastal waters of the Bohai Sea. Here, we focus on the phytoplankton community structure in this region and try to point out the biological background characteristics of the outbreaks of successive brown tides. We analyzed species composition,cell abundance, diversity indices and size-fractionated chlorophyll a(Chl-a) concentration monthly from March 2013 to January2014. The phytoplankton community, as observed by microscopy, underwent succession from nano-celled chained diatoms to dinoflagellates in the spring and summer, and then to micro-celled diatoms and nano-celled chained diatoms as the most prominent groups in the subsequent autumn and winter. Canonical correspondence analysis revealed that changes in the abundance of diatoms were related to nutrient availability, especially of nitrogen, while water temperature was the crucial factor influencing the abundance of dinoflagellates and A. anophagefferens. Considering the contribution of nano-celled chained species to the micro-sized Chl-a,small phytoplankton(<20 μm) composed the majority of total Chl-a and were generally abundant during our study. Abundant and diverse small phytoplankton seemed to serve as a background or seedbank for the formation of blooms of A. anophagefferens and other small-celled algae. | XU Xin YU ZhiMing HE LiYan CHENG FangJin CAO XiHua SONG XiuXian | 2017 | Science China Earth Sciences2017，60，6： | 3 |
| 5 | Simultaneous cooperative relative localization and distributed formation control for multiple UAVs显示文摘Dear editor,In recent years,formation control of multiple unmanned aerial vehicles(UAVs)has been widely studied[1].As a motion control strategy,it aims to realize UAV swarms with many practical applications such as surveillance,rescue and inspection in complex environments,especially in GPSdenied environments.Formation flights have been demonstrated by many researchers,but most still rely on some external positioning systems such as GPS,motion tracking systems,and radio-based positioning systems.However,these infrastructure dependent systems require careful configuration(e.g.,the deployment of anchor nodes)and their operation areas are strictly limited.Moreover,in cluttered urban environments,GPS is unreliable.To get rid of the dependence on external infrastructures,Ref.[2]studied the distancebased formation by using inter-UAV range measurements,but the experiment reported was still GPS dependent. | Kexin GUO Xiuxian LI Lihua XIE | 2020 | Science China(Information Sciences)2020，63，1： | 3 |
| 6 | The environmental implication of diatom fossils in the surface sediment of the Changjiang River estuary(CRE) and its adjacent area显示文摘In order to depict the distribution of diatom fossils in surface sediments and to establish a reliable reference data for further paleoenvironmental study in the Changjiang (Yangtze) River estuary and its adjacent waters, the diatom fossils from 34 surface sediment samples and their relationship with environmental variables were analyzed by principal component analysis and redundancy correspondence analysis. The diversity and abundance of diatom fossils were analyzed. Some annual average parameters of the overlying water (salinity, temperature, turbidity, dissolved oxygen, depth, dissolved inorganic nitrogen, dissolved inorganic phosphate and dissolved inorganic silicate) were measured at each sampling site. A total of 113 diatom taxa and one silicoflagellate species were identified in the investigation area. Diatom fossils were better preserved in fine sediments. The absolute abundance of diatom fossils did not significantly diff er between inshore and off shore areas, the species diversity decreased from inshore to off shore. This may be because high nutrients and low salinity promoted the growth of more brackish species in coastal waters. The diatom taxa were divided into three groups, on the basis of their response and indication to environmental changes. For example, Actinocyclus ehrenbergii and Cyclotella stylorum were dominant in coastal waters (Group 1 and Group 3) with high nutrients and low salinity;the relative abundances of Paralia sulcata and Podosira stelliger were significantly higher in off shore sites (Group 2, average 39.5%), which were characterized by high salinity and deep water. Four environmental variables (salinity, dissolved inorganic nitrogen, temperature and water depth) explained the composition and distribution of diatom taxa independently ( P< 0.05), this finding can be applied in further paleoenvironmental reconstruction research in this area. | FAN Xin CHENG Fangjin YU Zhiming SONG Xiuxian | 2019 | Journal of Oceanology and Limnology2019，37，2： | 3 |
| 7 | Profiles of and variations in aluminum species in PAC-MC used for the removal of blooming microalgae显示文摘Polyaluminum chloride modified clay(PAC-MC)is a safe and efficient red tide control agent that has been studied and applied worldwide.Although it is well known that the distribution of hydrolytic aluminum species in PAC affects its flocculation,little is known about the influence of particulars aluminum species on the microalgae removal efficiency of PAC-MC;this lack of knowledge creates a bottleneck in the development of more efficient MCs based on aluminum salts.The ferron method was used in this study to quantitatively analyze the distributions of and variations in different hydrolytic aluminum species during the process of microalgae removal by PAC-MC.The results showed that Ala,which made up 5%–20%of the total aluminum,and Alp,which made up 15%–55%of the total aluminum,significantly affected microalgae removal,with Pearson’s correlation coefficients of 0.83 and 0.89,respectively.Most of the aluminum in the PAC-MC sank rapidly into the sediments,but the rate and velocity of settlement were affected by the dose of modified clay.The optimal dose of PAC-MC for precipitating microalgae was determined based on its aluminum profile.These results provide guidance for the precise application of PAC-MC in the control of harmful algal blooms. | Xueyi Dong Xihua Cao Wenbin Jiang Xiuxian Song Zhiming Yu Shitao Yu | 2021 | Journal of Environmental Sciences2021，33，8： | 2 |
| 8 | Impact assessment of modified clay on embryo-larval stages of turbot Scophthalmus maximus L.显示文摘Using modified clay is one of the most promising methods for the mitigation of harmful algal blooms(HABs).However,the environmental impact of modified clay has become a subject of global concern.In this study,turbot(Scophthalmus maximus L.)embryos were used as a model to assess the effect of modified clay on this sensitive stage of fish development.Results show that the 24 and 48h LC 50(median lethal concentrations)of the modified clay were 1.70 and 1.65 g/L,and the safe concentration was 0.47 g/L,which is much higher than the concentration used to treat HAB.The modified clay did not affect significantly the hatchability of turbot embryos but when the concentration exceeded 0.50 g/L,the deformity rate of newly hatched larvae increased significantly.The total length,specific growth rate(SGR)and yolk sac absorption rate of larvae reached their peaks at 0.50 g/L and then gradually decreased as the concentration of modified clay increased.Therefore,a moderate amount of modified clay does not harm the survival and hatching of turbot embryos,or the growth and development of newly hatched larvae. | ZHANG Yue SONG Xiuxian YU Zhiming ZHANG Peipei CAO Xihua YUAN Yongquan | 2019 | Journal of Oceanology and Limnology2019，37，3： | 2 |
| 9 | Nutrient characteristics in the Yangtze River Estuary and the adjacent East China Sea before and after impoundment of the Three Gorges Dam显示文摘 | Chao Chai Zhiming Yu Zhiliang Shen Xiuxian Song Xihua Cao Yun Yao | 2009 | Science of the Total Environment2009，，16： | 2 |
| 10 | On Fh-normal subgroups of finite groups显示文摘 | Feng Xiuxian Guo Wenbin | 2010 | Front Math China2010，5，4： | 1 |
| 11 | The development of a design methodology for dynamic power distribution management on a civil transport all electric aircraft显示文摘 | Xiuxian Xia Craig P Lawson | 2013 | Aerospace Science and Technology2013，25，1： | 1 |
| 12 | The nitrogen isotopic composition of dissolved nitrate in the Yangtze River(Changjiang) estuary, China显示文摘 | Liu Xiujuan Yu Zhiming Song Xiuxian | 2009 | Estuarine Coastal and Shelf Science2009，85，： | 1 |
| 13 | Distributed multi-robot sweep coverage for a region with unknown workload distribution显示文摘This paper considers the scenario where multiple robots collaboratively cover a region in which the exact distribution of workload is unknown prior to the operation.The workload distribution is not uniform in the region,meaning that the time required to cover a unit area varies at different locations of the region.In our approach,we divide the target region into multiple horizontal stripes,and the robots sweep the current stripe while partitioning the next stripe concurrently.We propose a distributed workload partition algorithm and prove that the operation time on each stripe converges to the minimum under the discrete-time update law.We conduct comprehensive simulation studies and compare our method with the existing methods to verify the theoretical results and the advantage of the proposed method.Flight experiments on mini drones are also conducted to demonstrate the practicality of the proposed algorithm. | Muqing Cao Kun Cao Xiuxian Li Shenghai Yuan Yang Lyu Thien-Minh Nguyen Lihua Xie | 2021 | Autonomous Intelligent Systems2021，1，1： | 1 |
| 14 | The mechanism of a new type of modified clay controlling Phaeocystis globosa growth显示文摘Phaeocystis globosa is a harmful algal bloom(HAB)species worldwide.Using modified clay(MC)to control HABs and to mitigate their adverse effects is currently a commonly used method in China.In this paper,the effects of oxidized composite modified clay(OXI-MC)on P.globosa were studied from different perspectives.The results show that the OXI-MC could effectively remove P.globosa and inhibit both the growth of residual algal cells and the formation of new colonies.The P.globosa algal biomass removal efficiencies after 3 h reached 90%at a dose of 0.1 g/L,and the number of colonies with different particle sizes was greatly reduced.Compared with those of the control,the superoxide dismutase(SOD)activity,catalase(CAT)activity,and malondialdehyde(MDA)content of the residual algae significantly increased,indicating that OXI-MC caused oxidative stress in the algal cells.In addition,we evaluated the effects of OXI-MC on the photosynthesis of residual microalgae and found that the maximal photochemical efficiency of photosystem II(PSII)under dark adaptation(F v/F m)and actual photochemical efficiency of PSII(ФPSII)decreased,severely damaging the photosynthesis efficiency,implying that OXI-MC effected the photosynthesis system of P.globosa.The results of this study clarify that OXI-MC could remove the most of algal cells and break up the colonies of P.globosa by collision,flocculation,and releasing active substances,as well as inhibit effectively the growth and colony formation of residual P.globosa by causing oxidative stress,reducing photosynthesis activity,accelerating the degradation of polysaccharides,and inhibiting the formation of colonies. | QIU Lixia YU Zhiming CAO Xihua JI Hena SONG Xiuxian | 2020 | Journal of Oceanology and Limnology2020，38，4： | 1 |
| 15 | On F h-normal subgroups of finite groups显示文摘 | Feng Xiuxian Guo Wenbin | 2010 | Front Math China2010，5，4： | 1 |
| 16 | Human Agonistic Antibody to Tumor Necrosis Factor-Related Apoptosis-Inducing Ligand Receptor 2 Induces Cytotoxicity and Apoptosis in Prostate Cancer and Bladder Cancer Cells显示文摘 | Osamu Shimada Xiuxian Wu Xinghua Jin Mohammed Ahmed Abdel-Muneem Nouh Michele Fiscella Vivian Albert Tadashi Matsuda Yoshiyuki Kakehi | 2007 | Urology2007，，2： | 1 |
| 17 | The status andcharacteristics of eutrophication in the Yangtze River ( Changjiang)estuary and the adjacent East China Sea, China 显示文摘 | CHAI Chao YU Zhiming SONG Xiuxian | 2006 | Hydrobiologia2006，563，1： | 1 |
| 18 | The Status and Characteristics of Eutrophication in the Yangtze River (Changjiang) Estuary and the Adjacent East China Sea, China显示文摘 | Chao Chai Zhiming Yu Xiuxian Song Xihua Cao | 2006 | Hydrobiologia2006，，1： | 1 |
| 19 | Application and comparison of two symptom-based eutrophication-assessment methods in Jiaozhou Bay, China显示文摘Increasing numbers of approaches to assess eutrophication, such as estuarine trophic status, the Oslo-Paris Commission Common Procedure, and the Water Framework Directive, focus on the symptoms of eutrophication. In China, however, nutrient index methods dominate the assessment of coastal waters. In this study, an integrated method that includes both water quality and ecological response was compared with the Northwest Pacifi c Action Plan (NOWPAP) Common Procedure. Observation data from Jiaozhou Bay, Shandong, China, were used in a comparison of the two methods in a trophic status study. Overall, both clearly revealed a high level of nutrient enrichment in the bay, indicated by high nutrient concentrations. Though the two methods diff ered in their methodological design in the assessment of the ecological eff ects of nutrient enrichment, they have acquired similar results: the integrated method suggested that the status was good, and the NOWPAP Common Procedure suggested that the status was low (indicating that the bay had no serious eutrophication problem). The introduction of fi lter feeders (shellfi sh aquaculture) into the bay on a reasonable scale may have been eff ective in mitigating eutrophic conditions, and perhaps explains the low ecological impacts there. Our results will be useful to ecosystem-based eutrophication management in the bay and in similar areas. | WU Zaixing YU Zhiming SONG Xiuxian CAO Xihua YUAN Yongquan | 2019 | Journal of Oceanology and Limnology2019，37，5： | 1 |
| 20 | Rota-Baxter operators on pre-lie algebras显示文摘 | Xiuxian L Dongping H Chengming B | 2007 | J NonlinearMath Phys2007，14，： | 1 |
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