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AN UPPER BOUND OF THE ESSENTIAL NORM OF COMPOSITION OPERATORS BETWEEN WEIGHTED BERGMAN SPACES

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Acta Mathematica Scientia 2014年第4期34卷 1145-1156页

作者：陈志华江良英颜启明 Department of Mathematics Tongji University Department of Applied Mathematics Shanghai Finance University

In this paper, we define the generalized counting functions in the higher dimensional case and give an upper bound of the essential norms of composition operators between the weighted Bergman spaces on the unit ball in terms of these counting functions. The sufficient condition for such operators to be bounded or compact is also given.

关键词： essential norm composition operator weighted Bergman space

Eosinophils promote pulmonary matrix destruction and emphvsema via Cathepsin L

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Signal Transduction and Targeted Therapy 2023年第11期8卷 5368-5382页

作者： Xia Xu Tao Yu Lingling Dong Rainer Glauben Siyuan Wu Ronghua Huang Shiwei Qumu chenli Chang Jing Guo Lin Pan Ting Yang Xin Lin Ke Huang zhihua chen chen Wang Department of Immunology School of Basic Medical SciencesCapital Medical UniversityBeijingChina Department of Pulmonary and Critical Care Medicine China-Japan Friendship HospitalBejingChina Key Laboratory of Respiratory Disease of Zhejang Province Department of Respiratory and Critical Care MedicineSecond Affliated Hospital of Zhejiang University School of MedicineHangzhouZhejangChina Department of Gastroenterology Infectious Diseasesand RheumatologyCampus Benjamin FranklinCharité-University Medicine BerlinBerlinGermany Institute of Respiratory Medicine Chinese Academy of Medical ScienceBeijingChina Institute of Clinical Medical Sciences China-Japan Friendship HospitalBeijingChina Iinstitute for Immunology Tsinghua University School of MedicineBeijingChina

Patients with chronic obstructive pulmonary disease(COPD)who exhibit elevated blood eosinophil levels often experience worsened lung function and more severe *** implies the potential involvement of eosinophils in the development of ***,the precise mechanisms underlying the development of eosinophil-mediated emphysema remain *** this study,we employed single-cell RNA sequencing to identify eosinophil subgroups in mouse models of asthma and emphysema,followed by functional analyses of these *** of accumulated eosinophils unveiled distinct transcriptomes in the lungs of mice with elastase-induced emphysema and ovalbumin-induced *** of eosinophils through the use of anti-interleukin-5 antibodies ameliorated elastase-induced emphysema.A particularly noteworthy discovery is that eosinophil-derived cathepsin L contributed to the degradation of the extracellular matrix,thereby leading to emphysema in pulmonary tissue Inhibition of cathepsin L resulted in a reduction of elastase-induced emphysema in a mouse ***,eosinophil levels correlated positively with serum cathepsin L levels,which were higher in emphysema patients than those without *** of cathepsin L in eosinophils demonstrated a direct association with lung emphysema in COPD ***,these findings underscore the significant role of eosinophil-derived cathepsin L in extracellular matrix degradation and remodeling,and its relevance to emphysema in coPD ***,targeting eosinophil-derived cathepsin L could potentially offer a therapeutic avenue for emphysema *** investigations are warranted to explore therapeutic strategies targeting cathepsin L in emphysema patients.

关键词： lung involvement elevated

2D and 3D refraction-based visualization of breast cancer for early clinical check

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Nuclear Science and Techniques 2006年第6期17卷 389-395页

作者： Masami ANDO Anton MAKSIMENKO Tetsuya YUASA Eiko HASHIMOTO Katsuhito YAMASAKI Shu IHIHARA Hiroshi SUGIYAMA Tokiko ENDO LI Gang chen zhihua Kazuyuki HYODO Ei UENO DDS Center RIST Tokyo University of Science Chiba 278-8510 Japan Photon Factory IMSS KEK Oho I-1 Tsukuba Ibaraki 305-0801 Japan Department of Photo-Science GUAS Oho 1.1 Tsukuba Ibamki 305-0801 Japan Faculty of Engineering Yamagata University Yonezawa Yamagata 992-8510 Japan Clinical Genome Informatics Center School of Genome Science Kobe University Hyogo 650-0017 Japan Departramt of Pathology Nagoya Medical Center Nagoya 460-0001 Japan Department of Radiology Nagoya Medical Center Nagoya 460-0001 Japan BSRF IHEP CAS Yaquanlu Beijing 100049 China China-Japan Friendship Hospital Yinhua Donglu Beijing 100029 China Department of Breast-Thyroid-Endocrine Surgery University of Tsukuba Ibaraki 305-8573 Japan

Ductal carcinoma in-situ (DCIS) has been visualized by 2D XDFI (X-ray dark-field imaging) and further by a 3D X-ray CT, and the data was acquired by the X-ray optics DEI (diffraction-enhanced imaging). A newly made algorithm was used for CT. Data of 900 projections with interval of 0.2 degrees were used. Ductus lactiferi, microcalci-fication in a 3D form have been clearly visible. The spatial resolution available was approximately 30μm.

关键词：折射乳腺癌临床检查 CT

Tandem Lewis acid catalyzed coupling/semipinacol rearrangement of allylic alcohol

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Science China Chemistry 2010年第1期53卷 147-150页

作者： YUAN DaoYi,ZHANG YongQiang,TU YongQiang,chen zhihua & ZHAO Xiong State Key Laboratory of Applied Organic Chemistry Department of Chemistry,Lanzhou University,Lanzhou 730000,China State Key Laboratory of Applied Organic Chemistry Department of Chemistry Lanzhou University Lanzhou China

Construction of the polyaryl quaternary unit through a ZnBr2 catalyzed tandem coupling/semipinacol rearrangement participated by allylic cations was reported for the first time.

关键词： coupling semipinacol rearrangement allylic cation quaternary center

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带有完美匹配层的光波导中模式的渐近解

光学学报 2009年第6期29卷 1459-1466页

作者：陈芝花李鹏浙江工业大学之江学院理学系浙江杭州310024 华北水利水电大学数学系河南郑州450011

对带有完美匹配层(PML)的光波导,通过W.K.B.方法,得到了关于波的模式的近似非线性方程。通过对该非线性方程进行渐近分析,得到了完美匹配层对波的各种模式的影响,推导出泄漏模的渐近解和Berenger模的渐近解。理论结果表明,对于光波导的... 详细信息

对带有完美匹配层(PML)的光波导,通过W.K.B.方法,得到了关于波的模式的近似非线性方程。通过对该非线性方程进行渐近分析,得到了完美匹配层对波的各种模式的影响,推导出泄漏模的渐近解和Berenger模的渐近解。理论结果表明,对于光波导的横电(TE)模,泄漏模的渐近解和开放的波导是相同的、而对于横磁(TM)模,泄漏模的渐近解和开波导会有所不同;当上下包层的折射率不同时,Berenger模的轨迹会有两条,而折射率相同时Berenger模的轨迹只有一条。数值模拟表明,泄漏模及Berenger模的渐近解在其精确解附近,且随着模的增大,误差越来越小。

关键词：导波光学光波导计算浙近解 W.K.B.方法完美匹配泄漏模

Geochemical characteristics of REEs and Sr, Nd isotopes of hydrothermal chimney and their geological significance in the Okinawa Trough

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Chinese Science Bulletin 1999年第S2期44卷 148-149页

作者： MENG Xianwei, chen zhihua and DU Dewen First Institute of Oceanography, State Oceanic Administration, Qingdao 266003, China First Institute of Oceanography State Oceanic Administration Qingdao 266003 China

THIS note first researches the geochemical characteristics of rare earth elements （REEs） and Sr and Ndisotopes of hydrothermal chimney in the middle Okinawa Trough. On this basis, the sources of mineralforming material and mechanisms of mineralization are discussed. 1 Analysis methods and results A hydrothermal chimney was obtained from theIsuzu depression in the middle Okinawa Trough andsamples for analysis were handpicked from *** samples belong to two types of ores, respectively,in which samples 360-1, 360-5 and 360-8 are of Cu-Znsulfide type and 159H is of barite-amorphous SiO2type. REEs were analyzed by TQ-TURBO II ICP-

关键词： hydrothermai chimney rare earth elements Sr and Nd isotopes.

Flow Field Investigation around Body Tail Projectile

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Journal of Applied Mathematics and Physics 2014年第6期2卷 277-283页

作者： Mahfouz Elnaggar Wessam zhihua chen Zhengui Huang Key Laboratory of Transient Physics NUST Nanjing 210094 Jiangsu China

The unsteady compressible flow around a 50 mm projectile governed by the Navier-Stocks (NS) equation is numerically solved with a Large Eddy Simulation (LES) method, with the Sub-Grid Scale (SGS) solved by Smagorinsky-Lilly model. The computed results are obtained in supersonic flow regime for a viscous fluid in order to determine the aerodynamic coefficients with different angles of attack. The flow around a body tail projectile was solved as a three-dimensional flow.

关键词： Body Tail Projectile Aerodynamic Coefficients Viscosity Flow Field

On the uniform finite-time stability of continuous linear time-varying systems:A numerical algorithm

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On the uniform finite-time stability of continuous linear ti...

Schwarz-Pick estimates for positive real part holomorphic functions on unit ball and polydisc

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作者： zhihua chen Yongchun Xie Beijing Institute of Control Engineering Science and Technology on Space Intelligent Control Laboratory

The paper deals with the uniform finite-time stability（UFTS） of continuous linear time-varying（LTV） ***,a necessary and sufficient condition for the UFTS of continuous LTV systems is devised with the idea of computing the envelope of all the trajectories of the considered ***,a corollary is obtained under the perspective of numerical ***,based on the obtained corollary,a novel numerical algorithm is designed by utilizing the Lipschitz continuity of certain *** the proposed algorithm,only limited numerical computation is needed when analyzing the UFTS of continuous LTV *** with the existing Lyapunov-like function method,one needn’t constructing Lyapunov-like ***,the obtained corollary just requires being checked at a limited number of time ***,two numerical examples are provided to illustrate the effectiveness and superiority of the proposed results.

关键词： Linear time-varying system Uniform Finite-time stability Numerical algorithm

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Science China Mathematics 2010年第4期53卷 1017-1024页

作者： LIU Yang 1,& chen zhihua 2 1 Department of Mathematics,Zhejiang Normal University,Jinhua 321004,China 2 Department of Mathematics,Tongji University,Shanghai 200092,China 1. Department of Mathematics Zhejiang Normal University Jinhua 321004 China2. Department of Mathematics Tongji University Shanghai 200092 China

We give higher order derivatives Schwarz-Pick estimates for all positive real part holomorphic functions on Bn and D n,and generalize early work on Schwarz-Pick estimate of higher order derivatives for holomorphic fun... 详细信息

关键词： Schwarz-Pick estimate holomorphic function Taylor expansion