检索结果-南通市图书馆

Echocardiographic Measurements in normal Chinese Adults(EMINCA)II focusing on left ventricular and left atrial size and function by three-dimensional echocardiography

在线全文

学校读者我要写书评

暂无评论

Frontiers of Medicine 2024年第4期18卷 649-663页

作者： Yingbin Wang Yu Zhang Guihua Yao Hong Tang Lixin Chen Lixue Yin Tiangang Zhu Jianjun Yuan Wei Han Jun Yang Xianhong Shu Ya Yang Yulin Wei Yanli Guo Weidong Ren Dongmei Gao Guilin Lu Ji Wu Hongning Yin Yuming Mu Jiawei Tian Lijun Yuan Xiaojing Ma Hongyan Dai Yunchuan Ding Mingyan Ding Qing Zhou Hao Wang Di Xu Mei Zhang Yun Zhang State Key Laboratory for Innovation and Transformation of Luobing Theory Key Laboratory of Cardiovascular Remodeling and Function ResearchChinese Ministry of EducationChinese National Health Commission and Chinese Academy of Medical SciencesDepartment of CardiologyQilu Hospital of Shandong UniversityJinan250012China Department of Cardiology Qilu Hospital of Shandong University(Qingdao)Qingdao266000China Department of Ultrasonography West China HospitalSichuan UniversityChengdu610041China Department of Ultrasonography Shenzhen People’s Hospital/The Second Clinical Medical College of Jinan UniversityShenzhen518020China Department of Ultrasonography Electronic Science and Technology University of ChinaThe Affiliated Sichuan Provincial People’s HospitalChengdu610072China Department of Cardiology Peking University People’s HospitalBeijing100044China Department of Ultrasonography Henan Provincial People’s HospitalZhengzhou463599China Department of Cardiology The First Affiliated Hospital of Harbin Medical UniversityHarbin150007China Department of Echocardiology The First Affiliated Hospital of China Medical UniversityShenyang110001China Department of Echocardiology Zhongshan HospitalFudan UniversityShanghai200032China Department of Echocardiology Beijing Anzhen HospitalCapital Medical UniversityBeijing100029China Department of Cardiology Sun Yat-sen Memorial HospitalSun Yat-sen UniversityGuangzhou510120China Department of Ultrasonography The Southwest Hospital of AMUChongqing400038China Department of Ultrasonography Shengjing Hospital of China Medical UniversityShenyang110136China Department of Ultrasonography China-Japan Union hospital of Jilin UniversityChangchun130033China Department of Ultrasonography First Affiliated HospitalSchool of MedicineShihezi UniversityShihezi832000China Department of Ultrasonography The First Affiliated Hospital of Guangxi Medical UniversityNanning537406China Department of Echocardiology The Second Hospital of Hebei Medical Uni

Current guidelines encourage large studies in a diverse population to establish normal reference ranges for three-dimensional(3D)echocardiography for different ethnic *** study was designed to establish the normal values of 3D-left ventricular(LV)and left atrial(LA)volume and function in a nationwide,population-based cohort of healthy Han Chinese adults.A total of 1117 healthy volunteers aged 18–89 years were enrolled from 28 collaborating laboratories in *** sets of 3D echocardiographic instruments were used,and full-volume echocardiographic images were recorded and transmitted to a core laboratory for image analysis with a vendor-independent off-line ***,866 volunteers(mean age of 48.4 years,402 men)were qualified for final *** parameters exhibited substantial differences between different sex and age groups,even after indexation by body surface *** normal ranges of 3D-LV and 3D-LA volume and function differed from those recommended by the American Society of Echocardiography and the European Association of Cardiovascular Imaging guidelines,presented by the World Alliance Societies of Echocardiography(WASE)study,and from the 2D values in the EMINCA *** normal reference values of 3D echocardiography-derived LV and LA volume and function were established for the first time in healthy Han Chinese *** ranges of 3D-LV and 3D-LA echocardiographic measurements stratified with sex,age,and race should be recommended for clinical applications.

关键词： three-dimensional echocardiography left ventricle left atrium normal reference values Chinese adults

A bi-As-capped and tetra-V-substituted arsenomolybdate:synthesis,structure,capacitive and electrocatalytic properties

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

钨科技(英文) 2023年第2期5卷 270-276页

作者： Shuang-Hong Ge Li-Ping Cui Kai Yu Mei-Lin Wang Chun-Mei Wang Lian-Xin Guo Bai-Bin Zhou Key Laboratory for Photonic and Electronic Bandgap Materials Ministry of EducationSchool of Chemistry and Chemical EngineeringHarbin Normal UniversityHarbin 150025China Key Laboratory of Molecular Cytogenetics and Genetic Breeding of Heilongjiang Province College of Life Science and TechnologyHarbin Normal UniversityHarbin 150025China

A bi-As-capped and tetra-V-substituted arsenomolybdate(Hbib)_(2)(biyb)_(3)[As^(Ⅲ)_(2)As^(Ⅴ)Mo^(Ⅵ)8V^(Ⅴ)_(4)O_(40)]_(2)·H_(2)O(1)(bib=1.4-Bis(imidazoly)butane;biyb=1,4-bis(imidazol-1-ylmethyl)benzene)has been constructed through hydrothermal methods and characterized by conventional *** 1 is a tetra-V substituted{AsMo^(Ⅵ)_(8)V^(Ⅴ)_(4)O_(4)}polyanions capped by two AsⅢcations at two symmetrical ditch in{AsO_(4)}rectangular pyramid *** exhibits higher specific capacitance,capacitance retention,and electrocatalytic activities for oxidizing ascorbic acid and reducing peroxide hydrogen.

关键词： Arsenomolybdate Crystal structure Hydrothermal synthesis Capacitive performence Electrocatalytic nronerty

一种具有组织级柔软度的高线性可拉伸的MXene基生物相容性水凝胶-弹性体混合物（英文）

在线全文

学校读者我要写书评

暂无评论

Science China Materials 2024年第10期67卷 3368-3378页

作者：万树黄海舟贺梓晟叶一舟李深苏适申佳欣韩龙祥万鹏冉旭陈李贺学锋孙立涛毕恒昌 Key Laboratory of Optoelectronic Technology and Systems Ministry of EducationKey Disciplines Laboratory of Novel Micro-Nano Devices and System TechnologySchool of Optoelectronics EngineeringChongqing University college of Photonic and Electronic Engineering Fujian Normal University School of Aeronautical Engineering Nanjing Vocational University of Industry Technology SEU-FEI Nano-Pico Center Key Laboratory of MEMS of Ministry of EducationCollaborative Innovation Center for Micro/Nano FabricationDevice and SystemSoutheast University The Shanghai Key Laboratory of Multidimensional Information Processing School of Communication and Electronic EngineeringEast China Normal University

为减少与人体皮肤/组织界面之间的机械失配,可穿戴/植入式设备在具有大线性拉伸性的同时保持低模量至关重要.然而,改善线性拉伸性往往会导致可拉伸材料模量的增加,这会阻碍它们在长期器官定量监测中的共形性.为此,我们开发了一种混合结... 详细信息

为减少与人体皮肤/组织界面之间的机械失配,可穿戴/植入式设备在具有大线性拉伸性的同时保持低模量至关重要.然而,改善线性拉伸性往往会导致可拉伸材料模量的增加,这会阻碍它们在长期器官定量监测中的共形性.为此,我们开发了一种混合结构:互锁的低模量多孔弹性体(Ecoflex-0030)/MXene基水凝胶.这种水凝胶-弹性体结构表现出更优异的性能,具有从0到1000%的大线性拉伸应变范围和6.4 kPa的低模量.此外,水凝胶-弹性体混合物可用作高灵敏度应变传感器,具有高灵敏度(GF～3.52)、线性电阻(0-200%)、快速响应(0.18 s)/恢复时间(0.21 s),以及优异的可重复性(1000次加载-卸载循环).这使得该器件在器官监测、人体活动监测和人机交互方面具有巨大的潜力.

关键词： linear stretchability low modulus MXene hydrogel–elastomer hybrid

同方期刊数据库

Microstructures and Mechanical Properties of Various Mg-Li Wrought Alloys

在线全文

学校读者我要写书评

暂无评论

Journal of Shanghai Jiaotong university(Science) 2012年第3期17卷 297-300页

作者：姜滨刘旭贺巫瑞智张密林曲智坤朱佳隽王春凤 Key Laboratory of Superlight Materials & Surface Technology of Ministry of education Harbin Engineering University college of Chemistry and Chemical Engineering Harbin Normal University

Three kinds of ultra-light Mg-Li wrought alloys,Mg-5.5Li-3Al-1Zn-1Ce,Mg-7.0Li-3Al-1Zn-1Ce and Mg-10.5Li-3Al-1Zn-1Ce,were prepared by vacuum induction melting furnace;then the alloys were extruded and *** microstructures and properties of these alloys were *** results indicate that the Mg-5.5Li3Al-1Zn-1Ce alloy has the highest strength,the Mg-10.5Li-3Al-1Zn-1Ce alloy has maximum elongation,and the Mg-7.0Li-3Al-1Zn-1Ce alloy has good comprehensive *** deformation can increase strength further after extrusion deformation.

关键词： Mg-Li alloy microstructures mechanical properties

DISTORTION THEOREMS FOR BLOCH MAPPINGS ON THE UNIT POLYDISC D^n

在线全文

学校读者我要写书评

暂无评论

Acta Mathematica Scientia 2010年第5期30卷 1661-1668页

作者：王建飞刘太顺唐笑敏 college of Mathematics Physics and Information Engineering Zhejiang Normal University Department of Mathematics Huzhou Teachers College

In this article, we establish distortion theorems for some various subfamilies of Bloch mappings defined in the unit polydisc Dn with critical points, which extend the results of Liu and Minda to higher dimensions. We obtain lower bounds of ｜ det（f＇（z））｜and Rdet（f＇（z）） for Bloch mapping f. As an application, some lower and upper bounds of Bloch constants for the subfamilies of holomorphic mappings are given.

关键词： Bloch constant Bloch mapping critical point holomorphic mapping

Crystal Structure,Thermal Behavior and Luminescence of a One-dimensional Coordination Polymer [Zn(4-CPOA)(Phen)(H_2O)]_n

在线全文

学校读者我要写书评

暂无评论

Chinese Journal of Structural Chemistry 2009年第12期28卷 1671-1676页

作者：杨燕曾明华张来军梁宏 Department of Chemistry and Biology Yulin Teachers' College School of Chemistry and Chemical Engineering Guangxi Normal University Shangrao normal college Shangrao

A novel coordination polymer of [Zn（4-CPOA）（Phen）（H2O）]n （C21H16N2O6Zn,1,4-CPOA = 4-carboxylato-phenoxyacetate dianion and Phen = 1,10-phenanthroline） has been synthesized and characterized by elemental analysis,IR,TG,PL and single-crystal X-ray diffraction. The crystal crystallizes in the triclinic system,space group of P1 with a = 9.622（3）,b = 9.631（3）,c = 11.526（4）A,α = 67.719（5）,β = 71.203（5）,γ = 83.552（6）o,V = 935.5（5） A^3,Z = 2,Dc = 1.625 g/cm^3,μ = 1.357 mm^-1 and F（000） = 468. The Zn（II） ion is surrounded by three carboxylate O atoms from two different 4-CPOA groups,two N atoms from the Phen ligand and one water molecule,forming a distorted octahedral coordination configuration. The Zn（II） ions were alternately interlinked by carboxylate groups of 4-CPOA with chelating bisbidentate and monodentate modes into a one-dimensional zigzag chain having an intrachain distance of ca. 9.631（1） . Under the direction of supramolecular recognition and attraction,the adjacent chains yield a double-stranded chain through π-π stacking between the phen ligands,which was further expanded into a 2-D framework via strong C–H–π interaction （ca. 2.95（1） ） between the 4-CPOA ligands and into a 3-D supramolecular network by strong hydrogen bond between terminal water molecule and carboxyl group. TG/DTG shows that its chain skeleton is thermally stable up to 419 oC and the blue fluorescent emission of the complex was determined at 471 nm in a solid state with its long decay lifetime of 1.83 ns.

关键词： 4-carboxyphenoxyacetic acid zinc complex thermal behavior luminescence

Hydrothermal Synthesis and Crystal Structure of a Manganese(Ⅱ) Complex:Mn_(1.5)(cbba)_3(phen)

在线全文

学校读者我要写书评

暂无评论

Chinese Journal of Structural Chemistry 2011年第4期30卷 492-495页

作者：王志涛李秀梅王庆伟 Department of Chemistry Tonghua Teachers CollegeTonghua Jilin normal university Siping

A new metal-organic complex Mn1.5（cbba）3（phen）（Hcbba = 2-（4＇-chlorine-ben-zoyl）benzoic acid,phen = 1,10-phenanthroline） 1 has been hydrothermally synthesized and struc-turally characterized by single-crystal X-ray diffraction,elemental analyses,TG and IR *** compound crystallizes in triclinic,space group P1 with a = 12.137（2）,b = 14.535（3）,c = 14.894（3）,α = 86.380（3）,β = 70.381（3）,γ = 72.647（3）°,V = 2360.3（8）3,C107H64Cl6Mn3N4O18,Mr = 2071.14,Dc = 1.457 g/cm3,μ（MoKα） = 0.638 mm-1,F（000） = 1055,Z = 1,the final R = 0.0638 and wR = 0.1905 for 6155 observed reflections（I 2σ（I））.It exhibits a 3D supramolecular network through hydrogen bonding and π-π stacking interactions.

关键词： hydrothermal synthesis crystal structure manganese(II) complex

Hydrothermal Synthesis and Crystal Structure of a Zinc(II) Polymer with a Two-dimensional Layer Structure: [Zn(pzdc)(phen)]_n·nH_2O

在线全文

学校读者我要写书评

暂无评论

Chinese Journal of Structural Chemistry 2009年第10期28卷 1257-1260页

作者：李秀梅王志涛刘博王庆伟周实 Department of Chemistry Tonghua Teachers College Department of Chemistry Jilin Normal University

A metal-organic coordination compound formulated as [Zn（pzdc）（phen）]n·nH2O 1 （H2pzdc = pyrazine-2,3-dicarboxylic acid, phen = 1,10-phenanthroline） has been hydrothermally synthesized and structurally characterized by elemental analysis, IR, fluorescence spectrum and single-crystal X-ray diffraction. The title compound crystallizes in the monoclinic system, space group P21/n with a = 11.607（2）, b = 11.719（2）, c = 13.140（3）A^°, β = 110.707（3）°, V= 1671.9（6）A^°3, C18H12ZnN4O5, Mr= 429.69, De = 1.707 g/cm^3,μ（MoKa） = 1.511 mm^-1, F（000） = 872, Z = 4, the final R = 0.0356 and wR = 0.0853 for 2713 observed reflections （I 〉 2σ（I））. It exhibits an interesting two-dimensional layer structure and shows yellow photoluminescent property at room temperature.

关键词： coordination polymer hydrothermal synthesis crystal structure luminescence

Hydrothermal Synthesis and Crystal Structure of a Nickel(Ⅱ) Polymer with a One-dimensional Chain Structure:[Ni(cbba)_2(bipy)(H_2O)_2]_n

在线全文

学校读者我要写书评

暂无评论

Chinese Journal of Structural Chemistry 2011年第2期30卷 176-179页

作者：李秀梅王庆伟王志涛刘博 Department of Chemistry Tonghua Teachers College Jilin normal university

A metal-organic coordination polymer formulated as [Ni（cbba） 2 （bipy）（H 2 O） 2 ] n 1 （H 2 cbba=2-（4-chlorine-benzoyl）benzoic acid,bipy=4,4-bipyridine） has been hydrothermally synthesized and structurally characterized by elemental analysis,IR spectrum,TG and single-crystal X-ray *** title compound crystallizes in the triclinic system,space group P1 with a=5.4550（4）,b=11.4099（8）,c=15.3135（11）,α=68.7680（10）,β=81.3470（10）,γ=79.3450（10）o,V=869.48（11） 3,C 38 H 28 Cl 2 N 2 NiO 8,M r=770.23,D c=1.471 g/cm 3,μ（MoKα）=0.768 mm 1,F（000）=396,Z=1,the final R=0.0456 and wR=0.1171 for 2477 observed reflections （I 2σ（Ⅰ））.It exhibits a one-dimensional chain-like structure.

关键词： hydrothermal synthesis crystal structure coordination polymer