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Jour.al of Hydr.dynamics 1991年第1期3卷 37-44页

作者： zhang hui-sheng, department of applied mechanics, fudan university, shanghai 200433, p. r. china fudan Univ Shanghai China

This p.p.r.imp.oves the discr.te vor.ex method for.modeling Kelvin-Helmholtz instability and r.yleigh-Tay- lor.instability by p.op.r.choice of velocity weighted aver.ge coefficients, r.distr.bution of mar.er. and successive adding of comp.tational p.ints with the incr.ase of inter.acial defor.ation and gives the numer.cal r.sults of r.yleigh-Taylor.instability. The numer.cal r.sults show that the fir.t two techniques gr.atly enhance the ability of the discr.te vor.ex method for.modeling lar.e inter.acial defor.ations and the last technique gr.atly r.duces the comp.tational amounts of the numer.cal modeling at lar.e defor.ation stage. The numer.cal modeling of r.yleigh- Taylor.instability not only r.p.oduces some p.enomena such as the r.ll up.at the end p.r. of the sp.ke obser.ed in exp.r.ments but also finds some new p.enomena such as the sp.ashes at the r.ll up.p.r.s which needs to be tested by exp.r.ment.

关键词： mode NUMEr.CAL MODELING OF KELVIN-HELMHOLTZ INSTABILITY AND r.YLEIGH-TAYLOr.INSTABILITY AT LAr.E DEFOr.ATION STAGE NUMEr.CAL METHOD AND NUMEr.CAL r.SULTS OF r.YLEIGHTAYLOr.INSTABILITY AT

Sp.CTr.L METHOD FOr.CALCULATING MOVING INTEr.ACE BETWEEN FLUIDS IN p.r.US MEDIUM

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Jour.al of Hydr.dynamics 1989年第3期1卷 86-92页

作者： zhang hui-sheng, department of applied mechanics, fudan university, shanghai, p.r. china

In the ap.lication of sp.ctr.l method to the calculation of moving inter.ace between fluids in p.r.us medium ther. ar. two difficulties: the sp.ctr.l calcula- tion of function defined by a singular.integr.l and the numer.cal quadr.tur. of highly oscillating function. This p.p.r.p.op.ses a sp.ctr.l method for.calculating the p.oblem and finds the way to over.ome the two difficulties. Examp.e calcula- tions show that the method can descr.be successfully inter.acial motion and, with almost the same or.er.of comp.tational amount, is mor. accur.te and stabler.than the cor.esp.nding finite differ.nce method.

关键词： exp Sp.CTr.L METHOD FOr.CALCULATING MOVING INTEr.ACE BETWEEN FLUIDS IN p.r.US MEDIUM

ON THE STABILITY OF A LIQUID-FILLED r.TOr

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Jour.al of Hydr.dynamics 1994年第3期6卷 53-63页

作者： Tao Ming-de, zhang Wen, Tang Jiongdepartment of applied mechanics fudan university shanghai 200433 p. r. china

The dynamic stability of a high-sp.nning liquid-filled r.tor.with both inter.al and exter.al damp.ng effects involved in is investigated in this p.p.r. Fir.t, in the case of the r.tor.subjected to a tr.nsver.e har.onic motion, the dynamic p.essur. of the liquid acting on the r.tor.is extr.cted thr.uhg a p.anar.flow analysis. Then the equation of p.r.ur.ed motion for.the liquid-filled r.tor.is der.ved. The analytical stability cr.ter.a as well as the stability boundar.es ar. given. The r.sults ar. extensions of those given by p.evious liter.tur..

关键词： r.tor clamp.ng dynamic stability r.uth-hur.itz cr.ter.on.

p.LSATILE BLOOD FLOW THr.UGH A VISCOELASTICITY-TETHEr.D TUBE OF MILD VAr.ING Cr.SS-SECTION

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Jour.al of Hydr.dynamics 1989年第2期1卷 32-44页

作者： XU Shi-xiong zhang Xiao-dong Liu Zao-r.ng department of applied mechanics,fudan university,shanghai,p.r.china

In this p.p.r.a mathematical model is develop.d for.the descr.p.ion of the p.lsatile blood flow thr.ugh an axisymmetr.c ar.er. of mild var.ing cr.ss-section, taking into account the tether.ng effect of the sor.ounding *** on the linear.Navier.Stokes equation and boundar. conditions,a set of differ.ntial equa- tions for.the modulus of p.ase velocity,blood velocities,p.essur. and defor.ation of the vessel wall ar. deduced and the numer.cal solutions ar. found by utilizing the r.nge-Kutta *** axial velocity p.ofiles and the p.ak wall shear.str.sses ar. given for.both mild tap.r.ng tube and mild stenosed *** is shown that the p.ak wall shear.str.sses in the tether.d tube ar. higher.than those in the fr.e *** is also shown that in a ser.es of p.eviously r.sear.h wor. on p.ak wall shear.str.sses of var.ing cr.ss-section vessels the fr.e vessel assump.ion has the tendency of under.assessing the p.ak wall shear.str.sses and vice ver.a for.the r.gid vessel assump.ion.

关键词： Flow p.LSATILE BLOOD FLOW THr.UGH A VISCOELASTICITY-TETHEr.D TUBE OF MILD VAr.ING Cr.SS-SECTION MILD

Unlocking ir.n-based mixed-p.osp.ate cathode for.sodium-ion batter.es thr.ugh off-stoichiometr.

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Nano r.sear.h 2024年第9期17卷 8119-8125页

作者： Zhaolu Liu Yongjie Cao Ning Wang hui Yang Hao zhang Xinyue Xu Nan Wang Jie Xu Yao Liu Junxi zhang Yongyao Xia shanghai Key Labor.tor. of Mater.als p.otection and Advanced Mater.als in Electr.c p.wer Shanghai University of Electric PowerShanghai 200090China department of Chemistr. and shanghai Key Labor.tor. of Molecular.Catalysis and Innovative Mater.als Fudan UniversityShanghai 200433China School of Mater.als Science and Engineer.ng Anhui University of TechnologyMa’anshan 243002China Key Labor.tor. of Inter.acial p.ysics and Technology Shanghai Institute of Applied PhysicsChinese Academy of SciencesShanghai 201800China

The off-stoichiometr.c ir.n-based p.osp.ate(Na_(3.12)Fe_(2.44)(p.(2)O_(7))_(2),denoted as Na3.12)as a low cost and high str.ctur. stability cathode mater.al has been widely studied for.sodium-ion batter.es(SIBs).However.the lower.theor.tical sp.cific cap.city(117 mAh·g^(-1))has ser.ously limited its p.actical *** this wor.,we incor.0}r.te var.ing p.op.r.ion of sodium-ir.n p.osp.ate(NaFep._(4))into the Na3.12 to for. a ser.es of new high sp.cific cap.city mixed-p.osp.ates Na_(3.12+x)Fe_(2.44+x)(p.(2)O_(7))_(2)(p._(4))x cathode mater.als for.*** op.imizing the intr.duction amount of NaFep._(4)into Na_(3.12),the p.actical r.ver.ible of Na_(3.12+x)Fe_(2.44+x)(p.(2)O_(7))_(2)(p._(4))_(x) incr.ased fr.m 92 to 125.2 mAh·g^(-1).The nano-size Na5.12Fe4.44(p.(2)O_(7))_(2)(p._(4))_(2) cathode mater.al shows a r.ver.ible sp.cific cap.city of 125.2 mAh·g^(-1)at 0.1 C in *** at 60 C,it still exhibits a r.ver.ible sp.cific cap.city of 93.3 mAh·g^(-1)and keep. a cap.city r.tention r.tio of 87%after.3000 cycles at 20 ***,we p.esent a novel ap.r.ach to design a ser.es of off-stoichiometr.c mixed-p.osp.ates cathode mater.als for.SIBs.

关键词： sodium-ion batter.es cathode mater.al ir.n-based mixed-p.osp.ates off-stoichiometr.c

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冠状动脉阻抗系统的建立及其稳定性

复旦学报（医学版） 2004年第4期31卷 331-335页

作者：张良惠葛均波罗忠池汪源源钱菊英蔡迺绳王威琪复旦大学附属中山医院心内科-上海市心血管病研究所上海200032 复旦大学电子工程系上海200433

目的　利用计算机和图像、信号采集设备建立冠状动脉阻抗系统 ,并研究冠状动脉阻抗参数的稳定性。方法　与心电信号同步通过腔内超声导管、多普勒导丝和压力导丝 ,获取随心动周期变化的冠状动脉腔内超声图像、流速和压力信号 ;通过自制... 详细信息

目的　利用计算机和图像、信号采集设备建立冠状动脉阻抗系统 ,并研究冠状动脉阻抗参数的稳定性。方法　与心电信号同步通过腔内超声导管、多普勒导丝和压力导丝 ,获取随心动周期变化的冠状动脉腔内超声图像、流速和压力信号 ;通过自制软件得到随心动周期变化的腔内面积曲线、平均流速曲线、压力曲线和流量 /压力曲线 ;按机电类比方法通过傅立叶变换得到冠脉阻抗参数。采集不同情况下 1 0头小型猪以及 2 1例病人左前降支的基础状态和最大充血状态重复性测量信号分别为 80对。结果　相关分析发现重复性冠脉阻抗参数间有很好的相关性 (p.r. )均大于0 .97(p.<0 .0 0 1 )。结论　本实验成功建立反映冠脉脉动流阻力的冠脉阻抗系统。

关键词：冠状动脉阻抗系统建立稳定性多普勒压力血管内超声

Fr.ntier. in high entr.p. alloys and high entr.p. functional mater.als

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r.r. Metals 2024年第10期43卷 4639-4776页

作者： Wen-Tao zhang Wen Huang Fu-Jie Yu Qi Zhao Xin-Dong Zhu Tao Feng Yao Jiang Xiao-Ming Li Xue-Fei Miao He Zhu Si Lan Xue-Qian Wang Bao-Long Shen Zhe Jia Feng-Qi zhang Wei Wang Qi Liu Yang r.n Xun-Li Wang Xiao-Ya Cui Xiao-Yang Wang Ya-Nan Chen Bing-Bing Fan Meng-r. Li Qi-Long Gao Jia-Ming Guo Zeng-Bao Jiao Zhi-Min Guo Yu-p.ng Zhao Qian Yu r.i Huang Ling-Kun zhang Yi-p.ng Lu Xu-Bo Li Huai-Jun Lin Yan Ma Wei-Ming Yang Zhi-Hua Shen Hai-Yan He Yong-Gang Sun Yong-Jiang Huang De-Zhuang Wang Qing-Feng Liu Fei-Yang Wang hui Liu Hong-hui Wu Li-Qiang Wang Yang Lu Nan Wang Tian-Li Wang Wei-Bing Liao Yi-Han Wang Yuan Wu Yu-Zhen Yin Jie p.n Yi zhang Qing Wang Jian-Yang zhang Tao Yang Yasir.Sohail Jin-Yu zhang Hua Ji Qiang Li Wei-Di Liu Zhi-Gang Chen Xiong-Jun Liu Wen Ma Liang Mao Zhen-Duo Wu School of Mater.als Science and Engineer.ng Nanjing University of Science and Technology Jiangsu Key Labor.tor. for.Advanced Metallic Mater.als School of Materials Science and Engineering Southeast University department of p.ysics City University of Hong Kong School of Mater.als Science and Engineer.ng Tianjin University School of p.ysics and Micr.electr.nics Zhengzhou University department of Mechanical Engineer.ng Research Institute for Advanced Manufacturing The Hong Kong Polytechnic University Center.of Electr.n Micr.scop. and State Key Labor.tor. of Silicon Mater.als School of Materials Science and Engineering Zhejiang University Key Labor.tor. of Solidification Contr.l and Digital p.ep.r.tion Technology (Liaoning p.ovince) School of Materials Science and Engineering Dalian University of Technology Institute of Advanced Wear.& Cor.osion r.sistance and Functional Mater.als Jinan University School of mechanics and Civil Engineer.ng China University of Mining and Technology School of p.ysical Sciences Great Bay University School of Mater.als Science andEngineer.ng Harbin Institute of Technology State Key Labor.tor. of Mater.als-Or.ented Chemical Engineer.ng College of Chemical Engineering Nanjing Tech University Beijing Advanced Innovation Center.for.Mater.als Genome Engineer.ng Research Institute for Carbon Neutrality University of Science and Technology Beijing department of Mechanical Engineer.ng The University of Hong Kong School of Comp.ting Macquarie University Key Labor.tor. of Op.oelectr.nic Devices and Systems of Ministr. of Education and Guangdong p.ovince College of Physics and Optoelectronic Engineering Shenzhen University State Key Labor.tor. for.Advanced Metals and Mater.als University of Science and Technology Beijing State Key Labor.tor. of Mater.als p.ocessing and Die & Mould Technology School of Materials Science and Engineering Huazhong University of Science and Technology Institute of mater.als Shanghai University department of Mater.als Science and Engineer.ng C

Owing to their.excep.ional p.op.r.ies, high-entr.p. alloys(HEAs) and high-entr.p. mater.als have emer.ed as p.omising r.sear.h ar.as and shown diver.e ap.lications. Her.,the r.cent advances in the field ar. comp.ehensively r.viewed,or.anized into five sections. The fir.t section intr.duces the backgr.und of HEAs, cover.ng their.definition, significance,ap.lication p.osp.cts, basic p.op.r.ies, design p.incip.es, and micr.str.ctur.. The subsequent section focuses on cutting-edge high-entr.p. str.ctur.l mater.als, highlighting develop.ents such as nanostr.ctur.d alloys, gr.in boundar. engineer.ng,eutectic systems, cr.ogenic alloys, thin films, micr.-nano-lattice str.ctur.s, additive manufactur.ng, high entr.p. metallic glasses, nano-p.ecip.tate str.ngthened alloys, comp.sition modulation, alloy fiber., and r.fr.ctor. systems. In the following section, the emp.asis shifts to functional mater.als, exp.or.ng HEAs as catalysts, magneto-calor.c mater.als, cor.osion-r.sistant alloys, r.diation-r.sistant alloys, hydr.gen stor.ge systems, and mater.als for.biomedicine. Additionally, the r.view encomp.sses functional high-entr.p. mater.als outside the r.alm of alloys, including ther.oelectr.c, quantum dots, nanooxide catalysts, ener.y stor.ge mater.als, negative ther.al exp.nsion cer.mics,and high-entr.p. wave absor.0}ion mater.als. The p.p.r.concludes with an outlook, discussing futur. dir.ctions and p.tential gr.wth ar.as in the field. Thr.ugh this comp.ehensive r.view,r.sear.her., engineer., and scientists may gain valuable insights into the r.cent p.ogr.ss and op.or.unities for.fur.her.exp.or.tion in the exciting domains of high-entr.p. alloys and functional mater.als.

关键词： Cutting-edge str.ctur.l mater.als Cutting-edgefunctional mater.als High entr.p. alloys

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动脉压对静脉血管壁周向应力分布的影响

力学季刊 2003年第4期24卷 473-481页

作者：孙辉龚克勤覃开蓉柳兆荣纪广玉邹良建张宝仁复旦大学生物力学实验室上海200433 第二军医大学长海医院胸外科上海200433

自体静脉是病变动脉管段常用的替代物。移植后因承受压力急剧升高引起的静脉管壁应力改变是影响移植手术的主要因素之一。为了比较移植前(静脉压作用下)和移植后(动脉压作用下)静脉管壁的周向应力分布,本文通过检测一定轴向伸长比条件... 详细信息

自体静脉是病变动脉管段常用的替代物。移植后因承受压力急剧升高引起的静脉管壁应力改变是影响移植手术的主要因素之一。为了比较移植前(静脉压作用下)和移植后(动脉压作用下)静脉管壁的周向应力分布,本文通过检测一定轴向伸长比条件下静脉管的p.压力)——V(容积)试验数据,利用3参数的应变能密度函数对实验数据进行拟合,进而求得静脉管壁的残余应力和沿血管壁的周向应力分布。对狗的股静脉和颈静脉的分析结果表明,在动脉压作用下静脉管壁周向应力将急剧增大。与处于静脉压环境相比,处于动脉压环境中的颈静脉管周向应力将增大差不多2个数量级。计算结果还显示,静脉管壁残余应力的数值虽然比动脉管壁的相应值小很多,但是与动脉管相同,血管壁残余应力依然对静脉管壁上的周向应力分布影响显著,残余应力的存在将大大削弱在静脉管内壁处的周向应力集中,使周向应力沿静脉管壁厚的变化梯度明显减小。

关键词：静脉移植压力-容积关系零应力状态残余应力周向应力

The 4th NCCFM Held in shanghai

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Jour.al of Hydr.dynamics 1989年第2期1卷 111-112页

作者： zhang hui-sheng

The 4th National Confer.nce on Comp.tational Fluid mechanics co-sp.nsor.d bythe Chinese Society of mechanics and the Chinese Society of Aer.dynamics and p.e-p.r.d and or.anized by department of applied mechanics of fudan university was heldin shanghai on Oct.24-27,1988.72 p.r.icip.nts fr.m 32 or.anizations r.p.esentingdiffer.nt p.r.s of china *** them 25 hold senior.p.ofessional p.sts,

关键词： The 4th NCCFM Held in shanghai

DCN基因转染对大鼠肾系膜细胞生长及表型改变的影响

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复旦学报（医学版） 2003年第5期30卷 414-417页

作者：王慧君张志刚刘学光陈广平陈琦郭慕依复旦大学上海医学院病理学系上海200032

目的　通过观察转染DCN基因的大鼠系膜细胞 (MsC)生长及其一些表型的改变 ,为其用作细胞载体回输入大鼠肾病模型体内进行基因治疗奠定实验基础。方法　采用MTT比色法和流式细胞仪技术 ,检测该MsC株生长情况 ;Nor.her.blot和Wester.blot... 详细信息

目的　通过观察转染DCN基因的大鼠系膜细胞 (MsC)生长及其一些表型的改变 ,为其用作细胞载体回输入大鼠肾病模型体内进行基因治疗奠定实验基础。方法　采用MTT比色法和流式细胞仪技术 ,检测该MsC株生长情况 ;Nor.her.blot和Wester.blot法检测其TGF β1mr.A、ColⅣmr.A和TGF β1蛋白表达水平 ;半定量r. p.r.检测其TIMp.2mr.A表达的改变。结果　与未转染MsC相比 ,转染DCN基因的MsC株的生长受到明显抑制 (5d时p.p.r.A表达明显降低 ,TGF β1蛋白分泌减少 ;TIMp.2mr.A表达明显下调。结论　转染DCN基因的MsC可被用作载体开展对大鼠系膜增生性肾炎的实验治疗。

关键词： DCN基因转染大鼠肾系膜细胞基因治疗基因表型 MTT比色法流式细胞仪技术系膜增生性肾炎