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| 1 | The discovery of Jurassic plants in Shenzhen of Guangdong, southern China and related significance显示文摘Investigations of major marine and non-marine geologic and biotic events across the Triassic-Jurassic transition rely predominantly on detailed stratigraphic frameworks and biodiversity analyses. The alternating sequences of marine and terrestrial Triassic-Jurassic formations in Guangdong Province represent one of the most remarkable coal-bearing series in southern China. The Lower Jurassic Jinji Formation is widely distributed in Guangdong, with continuously outcropped sections and rich marine and non-marine fossil fauna. However, as little research has been conducted on fossil plant remains in the Jinji Formation, it is difficult to understand the systematics,diversity, and floral aspects of the Jurassic. Here we report on the recent collection of rich fossil plants from the Jinji Formation in the Dapeng area of Shenzhen, southern Guangdong Province. Our studies demonstrate taxonomical affiliations, preservation status, and diversity features of these plant fossils, which are marked by the close association of densely preserved, pinnae and rachis connected leaves, and the bennettitalean reproductive organs of Williamsoniella, which may represent an Early Jurassic plant community dominated by Otozamites of the bennettitales.This work not only represents the first discovery of fossil plants in the Shenzhen area, but is also the first documentation of Jurassic plants in Guangdong and the Pearl River Delta regions. Research related to these plant fossils will be helpful in the correlation of the Early Mesozoic coal-bearing strata in Guangdong, and will provide a deeper understanding of variations in plant diversity of the Triassic and Jurassic transition in southern China. Additionally, it will provide terrestrial plant evidence for explorations in Jurassic palaeoecology, palaeoclimatology,and palaeogeography of southern China. | Yongdong Wang Xiangwu Wu Xiaoju Yang Wei Duan Liqin Li | 2014 | Chinese Science Bulletin2014,59,28: | 2 |
| 2 | High-Performance 3-D Fiber Network Composite Electrolyte Enabled with Li-Ion Conducting Nanofibers and Amorphous PEO-Based Cross-Linked Polymer for Ambient All-Solid-State Lithium-Metal Batteries显示文摘Solid electrolytes have gained attention recently for the development of next-generation Li-ion batteries since they can fun-damentally improve the battery stability and safety.Among various types of solid electrolytes,composite solid electrolytes(CSEs)exhibit both high ionic conductivity and excellent interfacial contact with the electrodes.Incorporating active nanofib-ers into the polymer matrix demonstrates an effective method to fabricate CSEs.However,current CSEs based on traditional poly(ethylene oxide)(PEO)polymer suffer from the poor ionic conductivity of PEO and agglomeration effect of inorganic fillers at high concentrations,which limit further improvements in Li+conductivity and electrochemical stability.Herein,we synthesize a novel PEO based cross-linked polymer(CLP)as the polymer matrix with naturally amorphous structure and high room-temperature ionic conductivity of 2.40×10^(−4)S cm^(−1).Li_(0.3)La_(0.557)TiO_(3)(LLTO)nanofibers are incorporated into the CLP matrix to form composite solid electrolytes,achieving enhanced ionic conductivity without showing filler agglomeration.The high content of Li-conductive nanofibers improves the mechanical strength,ensures the conductive network,and increases the total Li+conductivity to 3.31×10^(−4)S cm^(−1).The all-solid-state Li|LiFePO_(4)batteries with LLTO nanofiber-incorporated CSEs are able to deliver attractive specific capacity of 147 mAh g^(−1)at room temperature,and no evident dendrite is found at the anode/electrolyte interface after 100 cycles. | Chaoyi Yan Pei Zhu Hao Jia Jiadeng Zhu R.Kalai Selvan Ya Li Xia Dong Zhuang Du Indunil Angunawela Nianqiang Wu Mahmut Dirican Xiangwu Zhang | 2019 | Advanced Fiber Materials2019,1,1: | 2 |
| 3 | Dike Breach Risks of Different Flood Conditions in the Lower Yellow River显示文摘Based on the analysis of hanging rivers' actuality in the lower Yellow River and researches related to the evaluation of dike breach risks,it is put forward that the influencing factors of dike beach risks in the lower Yellow River should involve four aspects,the flow and sediment movement,the regional crustal stability,the variation of river regime and the stability of river dikes.With this,the evaluation indexes system of dike breach risks is established,and with the support of geographic information systems technology,the model of multi-hierarchical fuzzy comprehensive judgment is applied to estimate the dike beach risks of the hanging rivers in the lower Yellow River under different flood conditions.The evaluation results of dike breach risks show the following distributing regularities of dike breach risks in the lower Yellow River:(1) Dike breach risks increase with the increase of the flood.(2) Dike breach risks decrease with the changes of river patterns along the channel.(3) There are great risks of dike breach in the wandering reaches,and it is relatively higher in the south bank than in the north in wandering reaches.(4) There is a higher dike breach risk in the north bank than in the south in winding reaches.Simultaneously,the evaluation results manifest that the evaluation indexes system established from the flow and sediment movement,the regional crustal stability,the variation of river regime and the stability of river dikes can represent the actual situation of the lower Yellow River more comprehensively.The application of multihierarchical fuzzy comprehensive judgment can preferably resolve the problem of hanging river dike breach,which has numerous influencing factors and complicated functionary mechanisms.The applications of geographic information systems technology with powerful spatial analysis functions make dike beach risks quantificationally displayed in different spatial positions,and reflect the differences of dike beach risks in different spatial positions of the channel in the lower Yellow River. | Xia Fuqiang Wu Shaohong Yang Qinye Kang Xiangwu Ma Xin | 2010 | Chinese Journal of Population,Resources and Environment2010,8,1: | 1 |
| 4 | Development and validation of a machine learning-based nomogram for prediction of intrahepatic cholangiocarcinoma in patients with intrahepatic lithiasis显示文摘Background:Accurate diagnosis of intrahepatic cholangiocarcinoma(ICC)caused by intrahepatic lithiasis(IHL)is crucial for timely and effective surgical intervention.The aim of the present study was to develop a nomogram to identify ICC associated with IHL(IHL-ICC).Methods:The study included 2,269 patients with IHL,who received pathological diagnosis after hepatectomy or diagnostic biopsy.Machine learning algorithms including Lasso regression and random forest were used to identify important features out of the available features.Univariate and multivariate logistic regression analyses were used to reconfirm the features and develop the nomogram.The nomogram was externally validated in two independent cohorts.Results:The seven potential predictors were revealed for IHL-ICC,including age,abdominal pain,vomiting,comprehensive radiological diagnosis,alkaline phosphatase(ALK),carcinoembryonic antigen(CEA),and cancer antigen(CA)19-9.The optimal cutoff value was 2.05μg/L for serum CEA and 133.65 U/mL for serum CA 19-9.The accuracy of the nomogram in predicting ICC was 82.6%.The area under the curve(AUC)of nomogram in training cohort was 0.867.The AUC for the validation set was 0.881 from The Second Affiliated Hospital of Wenzhou Medical University,and 0.938 from The First Affiliated Hospital of Fujian Medical University.Conclusions:The nomogram holds promise as a novel and accurate tool to predict IHL-ICC,which can identify lesions in IHL in time for hepatectomy or avoid unnecessary surgical resection. | Xian Shen Huanhu Zhao Xing Jin Junyu Chen Zhengping Yu Kuvaneshan Ramen Xiangwu Zheng Xiuling Wu Yunfeng Shan Jianling Bai Qiyu Zhang Qiqiang Zeng | 2021 | Hepatobiliary Surgery and Nutrition2021,10,6: | 1 |
| 5 | Sinolejeunea yimaensis gen.et sp.nov.(Hepaticae) from the Middle Jurassic Yima Formation in Henan Province of China显示文摘A new liverwort with perichaetium and perigonium collected from the Middle Jurassic Yima Formation is described.Gametophyte is dorsivental,irregularly branched,bearing two-ranks of lateral leaves obliquely attached to main axis,and one rank of ventral leaves transversely attached to ventral surface of the axis.Lateral branch bearing perigonium arises from axil of ventral leaves.Perigonium consists of small paired perigonial bracts arranged in a spike.Two perichaetia are borne on the top of lateral branches with an ovate perianth bearing longitudinal ridges and grooves.Setae are thin and straight and stretch out from the aristulate perianth mouth.General morphology of this fossil bears resemblance to some living liverworts of Jungermanniales.It is so far the oldest fossil record of Jungermanniales in the world. | YANG XiaoJu WU XiangWu | 2011 | Science China Earth Sciences2011,54,2: | 1 |
| 6 | Eosinophilic enteritis: CT features显示文摘 | Xiangwu Zheng Jianmin Cheng Kehua Pan Kaiyan Yang Hongqing Wang Enfu Wu | 2008 | Abdominal Imaging2008,,2: | 1 |
| 7 | Spatial pattern of the flood disaster risk in the protected zone of the lower Yellow River embankment显示文摘 | YANG Peiguo DAI Erfu WU Shaohong KANG Xiangwu YANG Qinye XIA Fuqiang | 2006 | Chinese Science Bulletin2006,51,B11: | 1 |
| 8 | Pre-assessment on the loss and impact caused by large-scale flood disasters显示文摘 | KANG Xiangwu WU Shaohong DAI Erfu YANG Qinye LIU Ziqiang YANG Peiguo MA Xin ZHAO Ruifeng | 2006 | Chinese Science Bulletin2006,51,B11: | 1 |
| 9 | Effect of Semi-solid Isothermal Heat Treatment on Microstructure of VW63Z Alloy显示文摘The effects of isothermal heat treatment on the semi-solid microstructure evolution of VW63Z(Mg-6Gd-3Y-0.4Zr,wt.%)alloy are studied.It shows that the microstructure of VW63Z alloy could transform from equiaxed crystal to semi-solid spherical crystal after isothermal heat treatment above 620℃.With the heating temperature elevating from 620℃ to 635℃ and the holding time prolonging from 10 min to 35 min,the liquid fraction increases gradually.The semi-solid microstructure evolution of VW63Z alloy can be divided into three stages,i.e.,particle coarsening and spheroidization;particle necking,coalescence,and Ostwald ripening;and dynamic equilibrium.The semi-solid process window of VW63Z alloy ranges from 620℃ to 635℃,where the best process parameters are holding at 635℃ for 20 min-30 min.The solid fraction,the average particle size,and the shape factor are 41.1%-53.8%,81.5μm-83.2μm,and 0.70-0.75,respectively.The maximum relative deviations of the solid fraction,the particle size,and the shape factor at different heights of the same billet are 44.6%,17.4%,and 16.6%,respectively,which means that it should pay attention to the uniformity of edge and core of VW63Z alloy during isothermal heat treatment.The driving force of microstructure is supposed to be the reduction of solid-liquid interface free energy. | GONG Zhengxuan PANG Song JI Song DONG Xiwang HOU Xiangwu CHEN Ge HUA Xiru WU Lili JIANG Shanyao XIAO Lü | 2022 | 上海航天(中英文)2022,39,1: | 0 |
| 10 | Dynamic Study of Nonlinear Optical Properties in Tetrasodium Salt of Copper Tetrasulfophthalocyanine/Water Solution显示文摘 | Wang Zhang Chunying He Xiangwu Xiao Weina Song Yachen Gao Zhimin Chen Yongli Dong Yiqun Wu Qian Wang | 2016 | Chinese Journal of Chemistry2016,34,10: | 0 |
| 11 | Research on the reservation route of the lower Yellow River显示文摘 | LIU Yanhua KANG Xiangwu WU Shaohong YANG Qinye DAI Erfu MA Xin YANG Peiguo | 2006 | Chinese Science Bulletin2006,51,B11: | 0 |