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Petrography and origin of the Lower Ordovician microbial carbonates in the Songzi Area of Hubei Province,middle yangtze region,China

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Petroleum Science 2019年第5期16卷 956-971页

作者： Chuan-Tao Xiao Guo-Qi wei Zhen-Yu Song yun-Peng Xiao wei yang Man Dong yun-Fei Huang Da Gao Geosciences School of yangtze University Wuhan 430100HubeiChina Research Institute of Petroleum Exploration and Development PetroChinaLangfang 065007HebeiChina

This study is the first systematic assessment of the Lower Ordovician microbial carbonates in Songzi,Hubei Province,*** paper divides the microbial carbonates into two types according to growth patterns,namely nongranular and *** nongranular types include stromatolites,thrombolites,dendrolites,leiolites and laminites;the granular types are mainly oncolites and may include a small amount of microbiogenic *** to their geometric features,the stromatolites can be divided into four types:stratiform,wavy,columnar and ***,dipyramidal columnar stromatolites are identified for the first time and represent a new type of columnar *** thrombolites are divided into three types:speckled,reticulated and *** grazing gastropod Ecculiomphalus and traces of bioturbation are observed in the speckled and reticulated *** paper considers these two kinds of thrombolites to represent bioturbated *** findings not only fill gaps in the field of domestic Ordovician bioturbated thrombolites but also provide new information for the study of *** on the analysis of the sedimentary characteristics of microbialites,the depositional environments of the various types of microbialites are described,and the distribution patterns of their depositional environments are *** relationship between the development of microbialites and the evolution and radiation of metazoans during the Early to Middle Ordovician is *** with the correspondence between the stepwise and rapid radiation of metazoans and the abrupt reduction in the number of microbialites between the late Early Ordovician and the early Middle Ordovician,fossils of benthonic grazing gastropods(Ecculiomphalus)were found in the stromatolites and thrombolite of the study *** is believed that the gradual reduction in microbialites was related to the rapid increase in the abundance of *** not only graze

关键词： Microbial carbonate Stromatolites Thrombolites Oncolite Lower Ordovician Songzi Area

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Enhancing oxygen reduction reaction of Pt-Co/C nanocatalysts via synergetic effect between Pt and Co prepared by one-pot synthesis

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Rare Metals 2023年第1期42卷 146-154页

作者： yun-Feng Wu Ji-wei Ma yun-Hui Huang School of Materials Science and Engineering Tongji UniversityShanghai201804China School of Materials Science and Engineering Huazhong University of Science and TechnologyWuhan430074China

Designing highly active and durable electrocatalysts towards oxygen reduction reaction(ORR)plays a paramount importance for proton exchange membrane fuel ***-based binary alloys Pt-M(M=3d-transition metals)possessing excellent electronic and geometric properties have received increasing interests as highly active ***,we report a series of Pt_(x)Co/C(x=1,2,3)catalysts by a facile one-pot soft-chemistry *** the acidic conditions,the mass activities of PtCo/C,Pt_(2)Co/C and Pt_(3)Co/C are 0.526,0.462 and 0.441 A·mgPt^(-1),which are 2.60,2.31 and 2.22 times higher than that of Pt/C(0.200 A·mgPt^(-1)),*** specific activities of PtCo/C,Pt_(2)Co/C and Pt_(3)Co/C are 706.59,679.41 and 801.83μA·cm^(-2),which are accordingly 2.89,2.76 and 3.28 times higher than that of Pt/C(244.75μA·cm^(-2)).Notably,Pt_(3)Co/C shows a remarkable *** 5000 cycles of the accelerated durability testing,the mass activity and specific activity of Pt_(3)Co/C catalyst are 2.47 and 3.80 times higher than that of the commercial Pt/C,*** improved ORR activity and durability can be ascribed to the synergistic interaction between Pt and Co.

关键词： Proton exchange membrane fuel cells(PEMFCs) Pt_(x)Co/C catalysts Synergetic effect Oxygen reduction reaction(ORR) One-pot synthesis

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The Latest Research Progress of New Self-Repairing Energetic Compositest

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Chinese Journal of Chemistry 2020年第12期38卷 1807-1816页

作者： Yan-Jie Zhang Min Xia wei yang Fan-Zhi yang Guo-Ping Li yun-Jun Luo School of Materials Science and Engineering Beijing Institute of TechnologyBeijing 100081China Key Laboratory of High Energy Density Materials Ministry of EducationBeijing 100081China

This review summarizes research progress in self-repairing energetic composites based on the design of chemical structure of binders and the introduction of self-repairing properties between composite *** have prepared the polyurethane-urea binder and the GAP self-repairingbinder based on the disulfide bond,the polyurethane binder and FTPB-PDMl binder based on the Diels-Alder reaction,and the polyurethane binderbased on dynamic photocroslinking *** addition,PVDF-coHFP/EMIOTf/graphene achieves the self-repairing behavior of the polymer bondedexplosive(PBX).The future development of elf-repairing energetc composites is *** is pointed out that the mechanical properties,processingproperties and energy properties should be improved together with the introduction of self-repairing properties,and the energetic composites whichcan be repaired in various ways should be prepared.

关键词： composites reaction. composite

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Gradient Estimates for the Equation Δu+cu^(-α)=0 on Riemannian Manifolds

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Acta Mathematica Sinica,English Series 2010年第6期26卷 1177-1182页

作者： yun Yan yang Department of Mathematics Information School Renmin University of China Beijing 100872 P. R. China

Let （M, g） be a complete non-compact Riemannian manifold without boundary. In this paper, we give the gradient estimates on positive solutions to the following elliptic equation with singular nonlinearity：△u（x）＋cu^-a=0 in M,where a 〉 0, c are two real constants. When c 〈 0 and M is a bounded smooth domain in R^n, the above equation is known as the thin film equation, which describes a steady state of the thin film （see Guo-wei [Manuscripta Math., 120, 193-209 （2006）]）. The results in this paper can be viewed as an supplement of that of J. Li [J. Funct. Anal., 100, 233-256 （1991）], where the nonlinearity is the positive power of u.

关键词： positive solution gradient estimate thin film equation

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Harpagide Inhibits Microglial Activation and Protects Dopaminergic Neurons as Revealed by Nanoelectrode Amperometry

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Chinese Journal of Chemistry 2021年第8期39卷 2188-2194页

作者： Fu-Li Zhang yun Tang Hong Jiang Xiao-Ke yang wei-Hua Huang College of Chemistry and Molecular Sciences Wuhan UniversityWuhanHubei 430072China

Parkinson's disease(PD)is one of the most comm on n euroge nerative diseases(NDDs),characterized as less n eurotra nsmitter release and loss of dopaminergic(DAergic)neurons with microglial inflammatory response as a key *** product harpagide with anti-inflammatory function is a potential therapeutic drug of PD,but its role towards microglial activation and inflammation-mediated neuronal injury remained unsure.

关键词： Nanotechnology Reactive oxygen species Vesicles Harpagide Neurochemistry

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Composite diffuse large B-cell lymphoma and classical Hodgkin's lymphoma of the stomach:Case report and literature review

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World Journal of Gastroenterology 2013年第37期19卷 6304-6309页

作者： Hong-wei Wang Wen yang Lin Wang yun-Long Lu Jiang-yang Lu Department of Pathology the First Affiliated HospitalChinese PLA General Hospital Department of Gynaecology and Obstetrics Chinese PLAGeneral Hospital

The combination of classical Hodgkin’s lymphoma(cHL)and non-Hodgkin lymphoma coexisting in the same patient is not common,especially in one extranodal *** we present a rare case of composite diffuse large B-cell lymphoma(DLBCL)and cHL occurring simultaneously in the stomach of a 53-year-old female who presented with upper abdominal discomfort and gas *** was performed and the disease was diagnosed pathologically as composite lymphoma of DLBCL and cHL using hematoxylin-eosin and immunohistochemical ***-Barr virus(EBV)infection was not detected by in situ hybridization for EBV-encoded RNA or immunohistochemistry for EBV latent membrane *** chain reaction analysis from the two distinct components of the tumor demonstrated clonal immunoglobulinκlight chain gene *** patient died approximately 11 mo after diagnosis in spite of receiving eight courses of the CHOP and two courses of the rituximab-CHOP(RCHOP) chemotherapy *** case report showed that the two distinct components,DLBCL and cHL,appeared to originate from the same clonal progenitor cell,and that EBV infection was not essential for transformation during the course of tumorigenesis.

关键词： Composite lymphoma Diffuse large B-cell lymphoma Hodgkin’s lymphoma Stomach

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Synthesis, Structure and Properties of a New Terbium(Ⅲ) Complex Tb2(C15H11O3)6(phen)2

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Chinese Journal of Structural Chemistry 2020年第7期39卷 1087-1092页

作者： yang Ying-Qun LI wei yang Pin-Fang KUANG yun-Fei Key Laboratory of Functional Metal-organic Compounds of Hunan Province&Key Laboratory of Functional Organometallic Materials University of Hunan ProvinceHengyang 421008China Department of Chemistry and Materials Science Hengyang Normal UniversityHengyang 421008China

A new terbium(Ⅲ) complex Tb2(C15H11O3)6(phen)2 has been synthesized with 2-(4-methylbenzoyl)benzoic acid and 1,10-phenanthroline as *** data for the complex are as follows:monoclinic,space group P21/n,a=15.0786(6),b=13.5762(5),c=22.9683(9) A,β=104.130(4)°,V=4559.6(3) A3,Dc=1.540g/cm3,Z=2,μ(MoKα)=1.615 mm-1,F(000)=2136,the final R=0.0528 and wR=*** Tb(Ⅲ) ion is coordinated by eight atoms to give a distorted square antiprism coordination *** complex shows four fluorescence emission bands arising from the transitions of Tb3+5D4→7F6(490 nm),5D4→7F5(546 nm),5D4→7F4(588 nm) and 5D4→7F3(622 nm).The complex is an antiferromagnet in the range of 300~2 *** reported in the paper is the thermal stability property of the title complex.

关键词： terbium(Ⅲ)complex crystal structure fluorescence and magnetic properties

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Delayed xenon post-conditioning mitigates spinal cord ischemia/reperfusion injury in rabbits by regulating microglial activation and inflammatory factors

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Neural Regeneration Research 2018年第3期13卷 510-517页

作者： Yan-wei yang yun-lu Wang Jia-kai Lu Lei Tian Mu Jin wei-ping Cheng Department of Anesthesiology Beijing Anzhen Hospital Capital Medical University Beijing Institute of Heart Lung and Blood Vessel Diseases Beijing China

The neuroprotective effect against spinal cord ischemia/reperfusion injury in rats exerted by delayed xenon post-conditioning is stronger than that produced by immediate xenon post-conditioning. However, the mechanisms underlying this process remain unclear. Activated microglia are the main inflammatory cell type in the nervous system. The release of pro-inflammatory factors following microglial activation can lead to spinal cord damage, and inhibition of microglial activation can relieve spinal cord ischemia/reperfusion injury. To investigate how xenon regulates microglial activation and the release of inflammatory factors, a rabbit model of spinal cord ischemia/reperfusion injury was induced by balloon occlusion of the infrarenal aorta. After establishment of the model, two interventions were given：（1） immediate xenon post-conditioning—after reperfusion, inhalation of 50% xenon for 1 hour, 50% N2/50%O2 for 2 hours; （2） delayed xenon post-conditioning—after reperfusion, inhalation of 50% N2/50%O2 for 2 hours, 50% xenon for 1 hour. At 4, 8, 24, 48 and 72 hours after reperfusion, hindlimb locomotor function was scored using the Jacobs locomotor scale. At 72 hours after reperfusion, interleukin 6 and interleukin 10 levels in the spinal cord of each group were measured using western blot assays. Iba1 levels were determined using immunohistochemistry and a western blot assay. The number of normal neurons at the injury site was quantified using hematoxylin-eosin staining. At 72 hours after reperfusion, delayed xenon post-conditioning remarkably enhanced hindlimb motor function, increased the number of normal neurons at the injury site, decreased Iba1 levels, and inhibited interleukin-6 and interleukin-10 levels in the spinal *** xenon post-conditioning did not noticeably affect the above-mentioned indexes. These findings indicate that delayed xenon post-conditioning after spinal cord injury improves the recovery of neurological function by reducing microglial

关键词： nerve regeneration spinal cord injury xenon immediate post-conditioning delayed post-conditioning ischemia/reperfusion microglia interleukin-6 interleukin-10 ionized calcium binding adaptor molecule 1 inflammatory reaction neural regeneration

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Next-generation innovation and development of intelligent transportation system in China

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Science China(Information Sciences) 2017年第11期60卷 66-76页

作者： wei HUANG yun wei Jianhua GUO Jinde CAO Intelligent Transportation System Research Center Southeast University

As an integrated application of advanced technologies such as information technology, system control technology, and artificial intelligence in the transportation field, the intelligent transportation system(ITS) has been regarded as an efficient and effective solution for alleviating transportation issues that are encountered in several countries around the world. In this paper, the development history of the ITS in China is presented, and the problems and challenges faced by the ITS in China in the new normal state are clearly laid out. Three new ITS development requirements in China are then identified, and six development trends and directions are *** the successful application of the above guidelines, next generation innovation and development of ITS is expected to be realized in China, promoting and supporting the trends of urbanization, motorization, and informationization, which are resulting in fundamental changes in the development of the Chinese society and economy.

关键词： next-generation intelligent transportation system innovation and development integrated trans portation system traffic management and control artificial intelligence

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Solvothermal synthesis of PbTe/SnTe hybrid nanocrystals

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Chinese Chemical Letters 2014年第6期25卷 849-853页

作者： wei Jiang Zheng-Long yang Ding Weng Jun-wei Wang yun-Feng Lu Min-Juan Zhang Zhen-Zhong yang School of Chemistry and Materials Science Ludong University Department of Chemical and Biomolecular Engineering University of California at Los Angeles Materials Research Department Toyota Motor Engineering and Manufacturing North AmericaInc.1555 Woodridge AvenueAnn ArborMI 48105USA Institute of Chemistry Chinese Academy of Sciences

PbTe/SnTe hybrid nanocrystals with designed shape, chemical composition and narrow size distribution were synthesized by an efficient solvothermal approach. This approach enables mass and economical synthesis of PbTe-based nanocrystals. The organic ligands were completely removed by pretreatment with a super-hydride solution, making it possible to fabricate fully dense and robust thermoelectric devices with increased electrical conductivity.

关键词： Lead telluride Tin telluride Hybrid nanocrystal Solvothermal synthesis

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