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Population-Based and Personalized Design of Total Knee Replacement Prosthesis for Additive Manufacturing Based on Chinese Anthropometric Data

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Engineering 2021年第3期7卷 386-394页

作者： C.S.Chui K.S.leung J.qin D.Shi P.Augat R.M.Y.Wong S.K.H.Chow X.Y.Huang C.Y.Chen Y.X.lai P.S.H.Yung l.qin W.H.Cheung Department of Orthcpaedics and Traumatology Faculty of MdicineThe Chinese University of Hong KongHong Kong 999077China Genter for Transiational Medicine Resarch and Development herzhet Institues of Advaned TechnologyChinese Academy of ScenesShenzhen 518055China Department of Orthopedirs and Traumatology Nanjing Drum Tower Hospital The Affiliated HospitalNanjing University Medial SchoolNanjing 210008China Institute for Biomechanics Berufgenos senschaftliche Unfallklinik MurnauMurnanu am Staffelsee 82418Cermany Instinute for Biomechanic Paracelsus Medical University SazburgSatzburg 5020Austria

At present,most total knee replacement(TKR)prostheses on the market are designed according to the sizes of ***,extensive studies have indicated that human anatomies differ among different ethnicities.A number of reports have indicated that Chinese TKR patients do not match with available *** this study,computed tomography(CT)images of 52 knees of Chinese men and women were used for anthropometric *** and geometric measurements were definedand used for correlation *** parameters from the measurement results were *** geometries of knees were measured as coordinates.A deformable three-dimensional(3D)knee modelbased on anatomical coordinates correlating with the identified key parameters was generated.A pros-thesis was then designed according to the analyzed *** matching analysis,bone resectionanalysis,and cadaveric trials were conducted and compared with commercial products to validate theproposed *** femoral component designed by this study resulted in the highest accuracy(rootmean square point-to-surface(RMS PS),(1.08±0.20)mm)and lowest amount of resected bone volume(27412mm^(3))in comparison with two commercial knee *** study suggests a new approachfor population-based patient-specific femoral prosthesis design With a single,easilty acquired dimen-sion-namely,epicondyle width(ECW)-as input,a patient-specific femoral prosthesis can be designed according to the analyzed measured data and manufactured by additive manufacturing(AM)***,the reconstructed femoral condylar surface was compared with the femoral condylar surfacein the original CT scanning data The average RMS PS distance of the reconstructed femoral condylar surface among all data was(1.10±0.18)mm,which is comparable to other statistical shape modeling methods using multiple radiographs as input *** is a need to develop an anthropometric-based knee prosthesis for the Chinese *** on

关键词： Additive manufacturing Population-based design Total knee replacement Knee prosthesis Anthropometric measurement

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Properties and ERT of graphite electrically conductive concrete

Properties and ERT of graphite electrically conductive concr...

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TEIM2015第六届无机材料结构、性能及测试表征技术研讨会

作者： B.S.Huang Z.X.Hua l.qin Q.qin E.R.Wang X.D.Wang K.G.Tian 济南大学土木建筑学院

In recent decades,Electrical Resistance Tomography(ERT)has become a research *** application of ERT in practical engineering is still in the research stage,due to the resistivity is very hight and not steady limiting its *** influencing factors of Graphite Electrically Conductive Concrete(GECC),such as the dosage of graphite,curing age,moisture content and so on,have been analyzed.A set of ERT system of GECC has been proposed and designed based on PXI *** paper mainly shows experiments on ERT of GECC *** targets given with single and multi defects have been used for image *** examining,the law of the GECC imaging in different conductivity matrix has been ***,it determines the resistivity threshold in the ERT system,and validates the detection accuracy of the model with defects.

关键词： ERT Properties and ERT of graphite electrically conductive concrete

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肝脏扩散加权MRI:多次屏气、自由呼吸、呼吸触发与导航触发技术ADC测量可重复性研究

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国际医学放射学杂志 2014年第3期 284-284页

作者： X.Chen l.qin D.Pan Y.Huang l.Yan G.Wang 唐光健 Department of Radiology Guangdong General HospitalGuangdong Academy of Medical Sciences

摘要目的前瞻性对照正常肝脏在多次屏气(MBH)、自由呼吸(FB)、呼吸触发(RT)与导航触发(NT)不同呼吸运动补偿技术下扩散加权成像(DWI)中表观扩散系数(ADC)值

关键词：可重复性自由呼吸 MRI ADC 肝脏

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The lobster Eye Imager for Astronomy Onboard the SATech-01 Satellite

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Research in Astronomy and Astrophysics 2023年第9期23卷 66-78页

作者： Z.X.ling X.J.Sun C.Zhang S.l.Sun G.Jin S.N.Zhang X.F.Zhang J.B.Chang F.S.Chen Y.F.Chen Z.W.Cheng W.Fu Y.X.Han H.li J.F.li Y.li Z.D.li P.R.liu Y.H.lv X.H.Ma Y.J.Tang C.B.Wang R.J.Xie Y.l.Xue A.l.Yan Q.Zhang C.Y.Bao H.B.Cai H.Q.Cheng C.Z.Cui Y.F.Dai D.W.Fan H.B.Hu J.W.Hu M.H.Huang Z.Q.Jia C.C.Jin D.Y.li J.Q.li H.Y.liu M.J.liu Y.liu H.W.Pan Y.l.Qiu M.Sugizaki H.Sun W.X.Wang Y.l.Wang Q.Y.Wu X.P.Xu Y.F.Xu H.N.Yang X.Yang B.Zhang M.Zhang W.D.Zhang Z.Zhang D.H.Zhao X.Q.Cong B.W.Jiang l.H.li X.B.Qiu J.N.Sun D.T.Su J.Wang C.Wu Z.Xu X.M.Yang S.K.Zhang Z.Zhang N.Zhang Y.F.Zhu H.Y.Ban X.Z.Bi Z.M.Cai W.Chen X.Chen Y.H.Chen Y.Cui X.l.Duan Z.G Feng Y.Gao J.W.He T.He J.J.Huang F.li J.S.li T.J.li T.T.li H.Q.liu l.liu R.liu S.liu N.Meng Q.Shi A.T.Sun Y.M.Wang Y.B.Wang H.C.Wu D.X Xu Y.Q Yang Y.Yang X.S.Yu K.X.Zhang Y.l.Zhang Y.H.Zhang Y.T.Zhang H.Zhou X.C.Zhu J.S.Cheng l.qin l.Wang Q.l.Wang M.Bai R.l.Gao Z.Ji Y.R.liu F.l.Ma Y.J.Shi J.Su Y.Y.Tan J.Z.Tong H.T.Xu C.B.Xue G.F.Xue W.Yuan National Astronomical Observatories Chinese Academy of SciencesBeijing 100101China School of Astronomy and Space Science University of Chinese Academy of SciencesBeijing 100049China Shanghai Institute of Technical Physics Chinese Academy of SciencesShanghai 200083China North Night Vision Technology Co. LTDNanjing 211106China Institute of High Energy Physics Chinese Academy of SciencesBeijing 100049China Science and Technology on low-light-level Night Vision laboratory Xi'an 710065China Innovation Academy for Microsatellites Chinese Academy of SciencesShanghai 201204China Institute of Electrical Engineering Chinese Academy of ScienceBeijing 100190China National Space Science Center Chinese Academy of ScienceBeijing 100190China

The lobster Eye Imager for Astronomy(lEIA),a pathfinder of the Wide-field X-ray Telescope of the Einstein Probe mission,was successfully launched onboard the SATech-01 satellite of the Chinese Academy of Sciences on2022 July *** this paper,we introduce the design and on-ground test results of the lEIA *** stateof-the-art Micro-Pore Optics(MPO),a wide field of view of 346 square degrees(18.6°×18.6°)of the X-ray imager is *** optical assembly composed of 36 MPO chips is used to focus incident X-ray photons,and four large-format complementary metal-oxide semiconductor(CMOS)sensors,each of size 6 cm×6 cm,are used as the focal plane *** instrument has an angular resolution of 4’-8’(in terms of FWHM)for the central focal spot of the point-spread function,and an effective area of 2-3 cm^(2) at 1 keV in essentially all the directions within the field of *** detection passband is 0.5-4 keV in soft X-rays and the sensitivity is2-3×10^(-11) erg s^(-1) cm^(-2)(about 1 milliCrab)with a 1000 s *** total weight of lEIA is 56 kg and the power is 85 *** satellite,with a design lifetime of 2 yr,operates in a Sun-synchronous orbit of 500 km with an orbital period of 95 *** is paving the way for future missions by verifying in flight the technologies of both novel focusing imaging optics and CMOS sensors for X-ray observation,and by optimizing the working setups of the instrumental *** addition,lEIA is able to carry out scientific observations to find new transients and to monitor known sources in the soft X-ray band,albeit with limited useful observing time available.

关键词： instrumentation detectors-space vehicles instruments-telescopes-X-rays genera

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冠状动脉支架成像的优化：应用超高分辨光子计数探测器CT

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国际医学放射学杂志 2024年第6期 750页

作者： l.qin S.S.Zhou H.P.Dong J.Q.li R.Y.Zhang C.D.Yang 朱旭

摘要目的旨在比较基于光子计数探测器CT(PCD-CT)的冠状动脉CT血管成像(CCTA)中标准分辨率(SR)和超高分辨率(UHR)在冠状动脉支架成像方面的影像质量和诊断

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Performance measure for image fusion considering region information

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Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2007年第4期8卷 559-562页

作者： lIU Gang lü Xue-qin School of Power and Automation Engineering Shanghai University of Electric Power Shanghai 200093 China

An objective performance measure for image fusion considering region information is proposed. The measure not only reflects how much the pixel level information that fused image takes from the source image, but also considers the region information between source images and fused image. The measure is meaningful and explicit. Several simulations were conducted to show that it accords well with the subjective evaluations.

关键词： Image fusion Information fusion Image processing

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Assembly and Electrochemical Study of Transition Metal Substituted Polyoxometalates SiW_(11)NiO_(39)^(6-) and SiW_(11)MnO_(39)^(6-) on 4-Aminothio-phenol Modified Glassy Carbon Electrode

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Chemical Research in Chinese Universities 2005年第4期21卷 401-405页

作者： lüGui-qin DUJin-yan HUChang-wen InstituteforChemicalPhysics DepartmentofChemistryBeijingInstituteofTechnologyBeijing100081P.R.China InstituteforChemicalPhysics DepartmentofChemistryBeijingInstituteofTechnologyBeijing100081P.R.China／／ChemistryDepartmentAnhuiNormalUniversityWuhu241000P.R.China

Via layer-by-layer assembly, the polyoxometalates of Keggin type, SiW_ 11O_ 39Ni(H_2O) 6-(SiNiW_ 11) and {SiW_ 11O_ 39Mn(H_2O) 6-}(SiMnW_ 11) were first immobilized on a 4-aminothiophenol(4-ATP) modified glassy carbon electrode surface. The electrochemical behavior of these polyoxometalates was investigated. They exhibited some special properties in the films, which are different from those in a homogeneous aqueous solution. Their reaction mechanism in a multilayer film is proposed. The electrocatalytic behavior of these multilayer film electrodes for the reduction of BrO-_3 and NO-_2 were comparatively studied.

关键词： Polyoxometalate layer-by-layer assembly Electrochemical behavior Electrocatalytic reduction BrO_3^- NO_2^-

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Chitosan-supported Borohydride Reducing Agent

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Chinese Chemical letters 2001年第12期12卷 1051-1052页

作者： qin, CQ Xiao, l Du, YM Wuhan Univ Dept Environm Sci Wuhan 430072 Peoples R China

A new chitosan-supported borohydride reducing reagent (CBER) was prepared by treatment of KBH4 with the resin of chitosan derivative, which was first synthesized from: the reaction of cross-linked chitosan microsphere... 详细信息

关键词： polymer-support borohydride reducing agent chitosan resin

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Dendrite growth characteristics within liquid Fe-Sb alloy

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Science China(Physics,Mechanics & Astronomy) 2009年第5期52卷 720-728页

作者： WANG Weili lüYongJun qin HaiYan WEI BingBo Department of Applied Physics Northwestern Polytechnical UniversityXi’an 710072China

Bulk samples and small droplets of liquid Fe-10%Sb alloys are undercooled up to 429 K (0.24Tl) and 568 K (0.32Tl), respectively, with glass fluxing and free fall techniques. The high undercooling does not change the phase constitution, and only the αFe solid solution is found in the rapidly solidified alloy. The experimental results show that when the undercooling is below 296 K, the growth velocity of αFe dendrite rises exponentially with the increase of undercooling and reaches a maximum value 1.38 m/s. Subsequently, the growth velocity begins to decrease if undercooling further increases. The αFe phase grows into coarse dendrites under small undercooling conditions, whereas it becomes vermicular dendrites in highly undercooled melts. The solute trapping is closely related to the dendrite growth velocity and cooling rate rather than undercooling. Although the solute trapping can be remarkably suppressed by the rapid dendrite growth, the segregationless solidification is not observed in the present experiments due to the large solidification temperature range.

关键词： liquid physics dendrite growth solute distribution segregationless solidification

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High-Order Discontinuous Galerkin Method for Hovering Rotor Simulations Based on a Rotating Reference Frame

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Transactions of Nanjing University of Aeronautics and Astronautics 2019年第1期36卷 57-70页

作者： ZHANG Tao lü Hongqiang qin Wanglong CHEN Zhengwu Department of Aerodynamics Nanjing University of Aeronautics and Astronautics China Aerodynamics Research and Development Center

An implicit higher ? order discontinuous Galerkin(DG) spatial discretization for the compressible Euler equations in a rotating frame of reference is presented and applied to a rotor in hover using hexahedral grids. Instead of auxiliary methods like grid adaptation,higher ? order simulations(fourth ? and fifth ? order accuracy) are *** numerical experiments are carefully designed,conducted and analyzed. The results show generally excellent consistence with references and vigorously demonstrate the higher?order DG method's better performance in loading distribution computations and tip vortex capturing, with much fewer degrees of freedom(DoF). Detailed investigations on the outer boundary conditions for hovering rotors are presented as well. A simple but effective speed smooth procedure is developed specially for the DG method. Further results reveal that the rarely used pressure restriction for outlet speed has a considerable advantage over the extensively adopted vertical speed restriction.

关键词： high-order method(HOM) discontinuous Glaerkin method(DGM) Euler equation hovering rotor simulation tip vortex

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