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Experimental review of the T(1S,2S,3S)physics at e^(+)e^(-) colliders and the LHC

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Frontiers of physics 2020年第6期15卷 47-81页

作者： Sen jia Xingyu zhou Chengping Shen Key Laboratory of Nuclear Physics and Ion-beam Application(MOE)and Institute of Modem Physics Fudan UniversityShanghai 200443China School of Physics and Information Engineering Shanxi Normal UniversityLinfen 041004China

The three lowest-lying r states,ie,r(1S),T(2S),and r(35),composed of b pairs and below the BB threshold,provide a good platform for the researches of hadronic physics and physics beyond the Standard *** can be produced directly in ete--colliding experiments,such as CLEO,Babar,and Belle,with low continuum *** these experiments,many measurements of the exclusive r(1S)and r(2S)decays into light hadrons,which shed light on the"80%rule"for the Okubo-Zweig-lizuka suppressed decays in the bottomonium sector,were carried ***,many studies of the charmonium and bottomonium productions in r(1S,2S,3S)decays were performed,to distinguish different Quantum Chromodynamics(QCD)***,exotic states and new physics were also extensively explored in r(1S,2S,3S)decays at CLEO,BaBar,and *** r(1S,2S,3S)states can also be produced in p collisions and in ollisions involving heavy *** precision measurements of their cross sections and polarizations at the large hadron collider(LHC),especially in the CMS,ATLAS,and LHCb experiments,help to understand r production mechanisms in Pp *** observation of the sequential r suppession in heavy ion collisions at CMS,LHCb,and ALICE is of great importance for verifying the quark-gluon plasma predicted by *** this article,we review the experimental results on T(1S,2S,3S)at e+e-colliders and the LHC,and summarize their prospects at Belle II and the LHC.

关键词： r(1S,2S,3S) hadronic decay radiative decay exotic states new physics cross section polarization quark-gluon plasma

Dynamics of Coastal Land Use Patterns of Inner Lingdingyang Bay in the Zhujiang River Estuary

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Chinese Geographical Science 2007年第3期17卷 222-228页

作者： Xia zhen jia Peihong Lei Yong Chen Yunzhen The Key Laboratory of Coast&Island Development of Ministry of Education Nanjing UniversityNanjing210093China Guangzhou Marine Geological Survey Guangzhou510760China jiangsu Provincial Survey Bureau Nanjing210013China

To satisfy the growing of land demand from economic development,a large scale of land reclamation from sea has been carried out in Inner Lingdingyang Bay in the Zhujiang(Pearl)River estuary in recent *** a result,the tidal flat and the water channels became narrow,the frequency of floods increased,and the environment was *** Marine Geological Survey(GMGS)conducted an integrated project for marine geo-environ-ment and geo-hazards survey in *** the integration of multi-temporal remote sensing images of 1977,1978,1988,1996,and 2003,GIS spatial analyzing approach and GPS technique,as well as field data and other background data of the region,this research investigated the comprehensive characteristics and the drivers of coastal land use dy-namics and shoreline changes in Inner Lingdingyang *** results reveal that the reclaimed coastal land was mainly for agriculture and aquaculture in early years,but now they are used for construction sites of harbors and in-dustries,especially high-tech industry.

关键词： Inner Lingdingyang Bay coastal land use pattern land reclamation from sea Zhujiang River estuary

Global Exponential Projective Synchronization and Lag Synchronization of Hyperchaotic Lü System

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Communications in Theoretical Physics 2009年第4期51卷 679-683页

作者： ZHANG Qun-jiao LU Jun-An jia zhen College of Science Wuhan University of Science and Engineering Wuhan.430073 China School of Mathematics and Statistics Wuhan University Wuhan 430072 China Department of Mathematics and Physics Guilin University of Technology Guilin 541004 China

This paper investigates the projective synchronization and lag synchronization of a new hyperchaotic system[Physica A 364(2006)103].On the basis of Lyapunov stability theory,two novel nonlinear controllers are respectivelydesigned to guarantee the global exponential projective synchronization(including complete synchronization and anti-synchronization)and lag ***,numerical simulations are given to show the effectiveness of the mainresults.

关键词： hyperchaotic Lü system projective synchronization lag synchronization exponential

Development of an Eight-gene Prognostic Model for Overall Survival Prediction in Patients with Hepatocellular Carcinoma

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Journal of Clinical and Translational Hepatology 2021年第6期9卷 898-908页

作者： De-zhen Guo Ao Huang Yu-Peng Wang Ya Cao jia Fan Xin-Rong Yang jian zhou Department of Liver Surgery and Transplantation Liver Cancer InstituteZhongshan HospitalFudan UniversityKey Labo-ratory of Carcinogenesis and Cancer Invasion(Fudan University)Ministry of EducationShanghai Key Laboratory of Organ TransplantationZhongshan HospitalFudan UniversityShanghaiChina Cancer Research Institute Xiangya School of MedicineCentral South UniversityKey Laboratory of Carcinogenesis and Cancer InvasionMinistry of EducationXiangya HospitalCentral South UniversityChangshaHunanChina Institute of Biomedical Sciences Fudan UniversityShanghaiChina State Key Laboratory of Genetic Engineering Fudan UniversityShanghaiChina

Background and Aims:The overall survival(OS)of hepatocellular carcinoma(HCC)remains *** analysis of transcriptome data could identify patients with poor OS and may facilitate clinical *** study aimed to develop a prognostic gene model for ***:GSE14520 was retrieved as a training set to identify differential expressed genes(DEGs)between tumor and adjacent liver tissues in HCC patients with different OS.A DEG-based prognostic model was then constructed and the TCGA-LIHC and ICGC-LIRI datasets were used to validate the *** area under the receiver operating characteristic curve(AUC)and hazard ratio(HR)of the model for OS were calculated.A model-based nomogram was estab-lished and ***:In the training set,differential expression analysis identified 80 genes dysregulated in oxidation-reduction and metabolism *** univariate Cox and LASSO regression,eight genes(LPCAT1,DHRS1,SORBS2,ALDH5A1,SULT1C2,SPP1,HEY1 and GOLM1)were selected to build the prognostic *** AUC for 1-,3-and 5-year OS were 0.779,0.736,0.754 in training set and 0.693,0.689,0.693 in the TCGA-LIHC validation set,*** AUC for 1-and 3-year OS were 0.767 and 0.705 in the ICGC-LIRI validation *** analysis confirmed the model was an independent prognostic factor(training set:HR=4.422,p<0.001;TCGA-LIHC validation set:HR=2.561,p<0.001;ICGC-LIRI validation set:HR=3.931,p<0.001).Furthermore,a nomogram combining the model and AJCC stage was established and validated,showing increased OS predictive efficacy compared with the prognostic model(p=0.035)or AJCC stage(p<0.001).Conclusions:Our eight-gene prognostic model and the related nomogram represent as reliable prognostic tools for OS prediction in HCC patients.

关键词： Prognostic model Hepatocellular carcinoma Bioinformatic analysis

A review of space-object collision probability computation methods

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Astrodynamics 2022年第2期6卷 95-120页

作者： jia-Sheng Li zhen Yang Ya-Zhong Luo College of Aerospace Science and Engineering National University of Defense TechnologyChangsha 410073China Hunan Key Laboratory of Intelligent Planning and Simulation for Aerospace Missions Changsha 410073China

The collision probability computation of space objects plays an important role in space situational awareness,particularly for conjunction assessment and collision *** works mainly relied on Monte Carlo simulations to predict collision *** such simulations are accurate when a large number of samples are used,these methods are perceived as computationally intensive,which limits their application in *** overcome this limitation,many approximation methods have been developed over the past three *** paper presents a comprehensive review of existing space-object collision probability computation *** advantages and limitations of different methods are analyzed and a systematic comparison is *** regarding how to select a suitable method for different short-term encounter scenarios is then ***,potential future research avenues are discussed.

关键词： collision probability space situational awareness collision avoidance astrodynamics

Use of Muscle Feeding Arteries as Recipient Vessels for Soft Tissue Reconstruction in Lower Extremities

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Current Medical Science 2020年第4期40卷 739-744页

作者： jia TIAN zhen-bing CHEN Jin LI Department of Hand Surgery Union HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhan 430022China

Summary:Microsurgical free tissue transfer is still playing an important role in lower extremity *** a suitable recipient artery for anastomosis is critical in the microsurgical procedure,especially in an extensive wound,or in a complex trauma combined with vascular *** April 2014 to March 2018,we retrospectively reviewed patients with traumatic/posttraumatic,oncologic,and electrical wounds in the lower *** treated with muscle feeding artery as recipient vessels were *** latissimus dorsi(LD)muscle free flap,anterior lateral thigh(ALT)perforator free flap,and deep inferior epigastric perforator(DIEP)free flap were *** muscle feeding arteries to vastus lateral muscle and to medial head of gastrocnemius muscle,concomitant veins,and great saphenous vein were used as recipient *** included in the study were caused by tumour in 2 cases,car accident in 3 cases,crushing in 3 cases,burns in one case,and electrical injury in one *** wound size varied from 14 cm x 6 cm to 30 cm x 20 ***,ALT,and DIEP free flaps were used in 6,3,and 4 patients,*** muscle feeding arteries to medial head of gastrocnemius muscle,to sartorius muscle,and to vastus lateral muscle were used as recipient arteries in 4,5,and one patient,*** and great saphenous veins were used as recipient veins in 10 and 4 patients,*** the muscle feeding artery is feasible to avoid injury to the main artery and facilitate dissection and anastomoses,particularly when the wound is located proximal to the mid-third of the lower leg.

关键词： muscle feeding artery recipient vessel end-to-end anastomosis end-to-side anastomosis

Current patterns of plant diversity and phylogenetic structure on the Kunlun Mountains

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Plant Diversity 2022年第1期44卷 30-38页

作者： Wei-Bo Du Peng jia Guo-zhen Du State Key Laboratory of Grassland and Agro-Ecosystems School of Life SciencesLanzhou UniversityLanzhouGansu Province730000P.R.China

Large-scale patterns of biodiversity and the underlying mechanisms that regulate these patterns are central topics in biogeography and *** Qinghai-Tibet Plateau serves as a natural laboratory for studying these ***,most previous studies have focused on the entire Qinghai-Tibet Plateau,leaving independent physical geographic subunits in the region less well *** studied the current plant diversity of the Kunlun Mountains,an independent physical geographic subunit located in northwestern China on the northern edge of the Qinghai-Tibet *** integrated measures of species distribution,geological history,and phylogeography,and analyzed the taxonomic richness,phylogenetic diversity,and community phylogenetic structure of the current plant diversity in the *** distribution patterns of 1911 seed plants showed that species were distributed mainly in the eastern regions of the Kunlun *** taxonomic richness,phylogenetic diversity,and genera richness showed that the eastern regions of the Kunlun Mountains should be the priority area of biodiversity conservation,particularly the southeastern *** proportion of Chinese endemic species inhabiting the Kunlun Mountains and their floristic similarity may indicate that the current patterns of species diversity were favored via species *** Hengduan Mountains,a biodiversity hotspot,is likely the largest source of species colonization of the Kunlun Mountains after the *** net relatedness index indicated that 20 of the 28 communities examined were phylo-genetically dispersed,while the remaining communities were phylogenetically *** nearest taxon index indicated that 27 of the 28 communities were phylogenetically *** results suggest that species colonization and habitat filtering may have contributed to the current plant diversity of the Kunlun Mountains via ecological and evolutionary processes,and habitat filtering may play an impor

关键词： Biodiversity Plant community Kunlun mountains Phylogenetic structure Seed plants

Oxidation behavior of Nb–24Ti–18Si–2Al–2Hf–4Cr and Nb–24Ti–18Si–2Al–2Hf–8Cr hypereutectic alloys at 1250°C

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Rare Metals 2017年第3期36卷 168-173页

作者： zhen Hong Hu Zhang Jun-Fei Weng Lin-Fen Su zhen Li Li-Na jia School of Materials Science and Engineering Beihang UniversityBeijing 100191China

Nb-24Ti-18Si-2Al-2Hf-4Cr and Nb-24Ti-18Si-2Al-2Hf-8Cr alloys were prepared by arc melting in a water-cooled crucible under argon *** characteristics and oxidation resistance of the alloys at 1250 ℃ were *** results show that,when the Cr content is 4 at%,the microstructures consist of （Nb,Ti）ss and Nb5Si3;as Cr content increases to 8 at%,C14 Laves phase Cr2Nb is *** isothermal oxidation tests show that the oxidation kinetics of the two alloys follow similar *** weight gains of the two alloys after oxidation at 1250 ℃ for 100 h are 235.61 and 198.50 ***-2,*** oxidation,SiO2,TiO2,Nb2O5 and CrNbO4 are formed at ***,Ti2Nb10O29 is formed after oxidation for 20 min and begins to change into TiNb2O7 as the oxidation ***2 is formed as solid state at first but later evolves into glassy state to improve the cohesion of the *** oxidation for 100 h,oxidation products consist of SiO2,TiNb2O7,Nb2O5 and CrNbO4.

关键词： Nb-Si-based alloy lntermetallics Microstructural characteristics Oxidation

Fluorite Ce_(0.8)Sm_(0.2)O_(2-δ) porous layer coating to enhance the oxygen permeation behavior of a BaCo_(0.7)Fe_(0.2)Nb_(0.1)O_(3-δ) mixed conductor

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International Journal of Minerals,Metallurgy and Materials 2016年第6期23卷 698-703页

作者： Tai-he Wang Wei-jia Song Rong Li Qiang zhen Nano-Science and Technology Research Center Shanghai University Materials Science and Engineering College Shanghai University

Fluorite Ce0.8Sm0.2O2-δ（SDC） nanopowder with a crystallite size of 15 nm was synthesized by a co-precipitation method. An SDC porous layer was coated onto a BaCo0.7Fe0.2Nb0.1O3-δ（BCFN） mixed conductor to improve its oxygen transport behavior. The results show that the SDC-coated BCFN membrane exhibits a remarkably higher oxygen permeation flux（JO2） than the uncoated BCFN in the partial oxidation of coke oven gas（COG）. The maximum JO2 value of the SDC-coated BCFN is 18.28 mL ·min^-1·cm^-2 under a COG/air flux of 177 mL ·min^-1/353 mL ·min^-1 at 875℃ when the thickness of the BCFN membrane is 1 mm; this JO2 value is 23% higher than that of the uncoated BCFN membrane. This enhancement is likely because of the higher oxygen ionic conductivity of SDC, which supplies oxygen vacancies and accelerates oxygen exchange on the membrane/coating layer/gas three-phase boundary.

关键词： chemical stability surface coating oxygen permeable membrane coke oven gas