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可疑静脉栓塞的肾病综合征病人CT增强检查后急性肾损伤:一项基于倾向评分匹配的回顾性队列研究

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国际医学放射学杂志 2018年第3期 370-371页

作者： S.M.Tao X.Kong U.j.Schoepf j.l.wichmann D.C.Shuler C.S.Zhou 李建慧 Department of Medical Imaging Jinling Hospital Medical School of Nanjing University

摘要目的确定静脉注射碘对比剂是否增加肾病综合征病人急性肾损伤(AKI)的风险。方法回顾性分析行CT增强检查的肾病综合征病人(701例)。对照组由接受CT平扫

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基于定位像的自动管电压及自动管电流的CT在胸腹外伤检查中的应用——与固定kV和电流调节的CT检查比较

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国际医学放射学杂志 2014年第5期 499-500页

作者： C.Frellesen W.Stock j.M.Kerl T.lehnert j.l.wichmann C.Nau 吴爽 Department of Diagnostic and Interventional Radiology Clinic of the Goethe University

摘要目的研究自动管电压选择技术对胸腹多发伤增强 CT 检查中的影像质量和辐射剂量参数的影响方法对100 例病人进行了16层CT检查,扫描条件仅为120kV、190mAs

关键词：管电压定位像胸腹外伤 CT kV

肾移植术后脑默认模式网络变化:扩散张量成像和静息态功能MRI的研究

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国际医学放射学杂志 2016年第2期 193-194页

作者： l.j.Zhang j.Q.Wen X.liang R.F.Qi U.j.Schoepf j.l.wichmann 任冬晴 Department of Medical Imaging Jinling Hospital Medi cal School of Nanjing University

摘要目的利用扩散张量成像和静息态功能MRI来研究终末期肾病病人在肾移植术后脑部默认模式网络(DMN)结构和功能的变化。材料与方法这项前瞻性研究获得了当地医学研究伦理委员会的批准,并获得书面知情同意书。实验包括21例接受肾移植手... 详细信息

摘要目的利用扩散张量成像和静息态功能MRI来研究终末期肾病病人在肾移植术后脑部默认模式网络(DMN)结构和功能的变化。材料与方法这项前瞻性研究获得了当地医学研究伦理委员会的批准,并获得书面知情同意书。实验包括21例接受肾移植手术的终末期肾脏疾病病人[男15例,女6例;平均年龄(32±9.5)岁]和21名健康对照者[(男15名,

关键词：扩散张量静息态默认模式网络 MRI 功能

基于双能CT的成像对不同经验影像医师诊断骨质疏松性椎骨压缩性骨折骨髓水肿准确度的影响:与MRI比较

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国际医学放射学杂志 2016年第5期 574-575页

作者： M.Kaup j.l.wichmann j.E.Scholtz M.Beeres W.Kromen M.H.Albrecht 樊志红 Department of Diagnostic and Interventional Radiology Clinic of the Goethe University

摘要目的探讨与MR比较,双能CT(DECT)虚拟去钙成像是否能提高不同经验影像医师对骨质疏松病人急性胸腰椎压缩性骨折的检出率。材料与方法这项回顾性研究经本单位伦理委员会批准,所有病人签署知情同意书。49例疑为急性脊椎骨折的骨质疏松... 详细信息

摘要目的探讨与MR比较,双能CT(DECT)虚拟去钙成像是否能提高不同经验影像医师对骨质疏松病人急性胸腰椎压缩性骨折的检出率。材料与方法这项回顾性研究经本单位伦理委员会批准,所有病人签署知情同意书。49例疑为急性脊椎骨折的骨质疏松症病人行DECT和MR检查,得到传统线性混合能量CT和相应的虚拟去钙重建图像。5位不同经验的影像医师观察灰阶CT影像确定有无骨折及期

关键词：骨质疏松医师诊断 MRI 骨髓水肿影像医师胸腰椎压缩性骨折 CT 双能

双能CT心肌灌注成像中线束硬化伪影校正的定量评价

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国际医学放射学杂志 2016年第6期 705-706页

作者： M.Bucher j.l.wichmann U.j.Schoepf C.D.Wolla C.Canstein A.D.McQuiston 张宁男楠 Division of Cardiovascular Imaging Department of Radiology and Radiological ScienceMedical University of South Carolina

摘要目的定量评价一种新型线束硬化校正(BHC)重建算法对双能CT心肌灌注成像(DE-CTMPI)中线束硬化伪影(BHA)的影响。方法回顾性分析14例病人DE-CT MPI

关键词：心肌灌注成像硬化伪影双能定量评价线束 CT

Reply to the note by li Piani et al.

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Defence Technology（防务技术） 2024年第1期31卷 603-606页

作者： T.li Piani j.Weerheijm l.j.Sluys TU Delft Stevinweg 12628 CNDelftthe Netherlands TNO PO Box 452280 AARijswijkthe Netherlands NlDA Faculty of Military Sciences1781 CADen Helderthe Netherlands

In 2017,a ballistic phenomenological model was proposed by the authors of Ref.[1] to numerically simulate the experimental depths of small caliber projectiles impacting walls made of *** opportunity for a new model in the field revealed from the observation that two older models recently used by the authors of Ref.[2] shared a linear relationship between the penetration depth P and the impacting velocity v_(O).

关键词： Penetration Adobe Modeling

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Biomaterials and emerging technologies for tissue engineering and in vitro models

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Bio-Design and Manufacturing 2024年第3期7卷 237-239页

作者： j.Miguel Oliveira Rui l.Reis 3B’s Research Group I3Bs-Research Institute on BiomaterialsBiodegradables and BiomimeticsHeadquarters of the European Institute of Excellence on Tissue Engineering and Regenerative MedicineUniversity of MinhoAveParkZona Industrial da Gandra4805-017 BarcoGuimarãesPortugal ICVS/3B’s-PT Government Associate laboratory 4806-909 Braga/GuimarãesPortugal

The latest advances in the field of biomaterials have opened new avenues for scientific breakthroughs in tissue engineer-ing which greatly contributed for the successful translation of tissue engineering products into the market/***-materials are easily processed to become similar to natural extracellular matrix,making them ideal temporary supports for mimicking the three-dimensional(3D)microenvironment required for maintaining the adequate cell/tissue functions both in vitro and in vivo^([1]).

关键词： breakthrough biomaterials engineer

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Corrosion testing of X52 and X80 steels immersed in stimulated emulsions using a real petroleum sample

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Petroleum Research 2024年第2期9卷 304-316页

作者： l.M.Quej-Ake j.l.Alamilla A.Contreras Instituto Mexicano del Petróleo Eje Central Lázaro CárdenasNorte 152San Bartolo AtepehuacanGustavo A.MaderoCiudad de MéxicoC.P.07730México

The aim of this study is to evaluate the internal corrosion process on X52 and X80 steels/real petroleum interfaces containing condensed hydrocarbon plus oilfield-produced water,which were subjected to stimulated emulsions using 50/50 vol ratio mixtures at 45℃,different hydrodynamic conditions,1 h,and 24 h.A washing process by using deionized water was proposed to simulate and identify the corrosiveness of the hydrocarbon phase after 24 h of exposure *** characterization by electrochemical impedance spectroscopy and the monitoring of the polarization curves indicated that X80 steel/oilfield-produced water interfaces were more susceptible to corrosion than X52 steel exposed to oilfield-produced *** combined speed rotation of 600 rpm using a magnetic stirrer+600 rpm using a rotating disk electrode decreased the corrosion rate on X52 *** stimulated emulsions made of hydrocarbon+oilfield-produced water and hydrocarbon+deionized water at 24 h increased the corrosion rate on X80 steel(0.34 mm/year and 0.43 mm/year,respectively),promoting the formation of erosion and pitting *** types of corrosion depended mainly on the physicochemical properties of the hydrocarbon,oilfield-produced water,exposure times,and hydrodynamic systems in which the hydrocarbon was studied.

关键词： Corrosion Emulsions X52 steel X80 steel

On an isotropic porous solid cylinder:the analytical solution and sensitivity analysis of the pressure

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Applied Mathematics and Mechanics(English Edition) 2024年第9期45卷 1499-1522页

作者： H.ASGHARI l.MIllER R.PENTA j.MERODIO Departamento de Matematica Aplicada a las TIC ETS de Ingenieria de Sistemas InformaticosUniversidad Politecnica de MadridMadrid 28031Spain School of Mathematics and Statistics University of GlasgowGlasgow G128QQU.K.

Within this work,we perform a sensitivity analysis to determine the influence of the material input parameters on the pressure in an isotropic porous solid *** provide a step-by-step guide to obtain the analytical solution for a porous isotropic elastic cylinder in terms of the pressure,stresses,and elastic *** obtain the solution by performing a laplace transform on the governing equations,which are those of Biot's poroelasticity in cylindrical polar *** enforce radial boundary conditions and obtain the solution in the laplace transformed domain before reverting back to the time *** sensitivity analysis is then carried out,considering only the derived pressure *** analysis finds that the time t,Biot's modulus M,and Poisson's ratio ν have the highest influence on the pressure whereas the initial value of pressure P_(0) plays a very little role.

关键词： sensitivity analysis laplace transform cylindrical polar coordinate Biot's modulus cylinder

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