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7 TSWI的局部图像方差(LIV)是术前描述弥漫性浸润性胶质瘤的一种新技术:与肿瘤分级和IDH1突变状态的相关性分析

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国际医学放射学杂志 2017年第3期 365-366页

作者： g.grabner B.Kiesel A.Whrer M.Millesi A.Wurzer S.gd A.Mallouhi 纪毅敏 Comprehensive Cancer Center Central Nervous System Tumours Unit (CCC-CNS)Medical University of Vienna

摘要目的探讨术前行7 T MR磁敏感加权成像(SWI)局部图像方差(LIV)在定量分析胶质瘤征象中的低信号微血管结构中的价值。方法前瞻性收集神经放射学上怀疑弥漫性浸润性胶质瘤的成年病人,行常规MRI及7 T SWI。肿瘤分割后,应用SWI-LIV定量... 详细信息

摘要目的探讨术前行7 T MR磁敏感加权成像(SWI)局部图像方差(LIV)在定量分析胶质瘤征象中的低信号微血管结构中的价值。方法前瞻性收集神经放射学上怀疑弥漫性浸润性胶质瘤的成年病人,行常规MRI及7 T SWI。肿瘤分割后,应用SWI-LIV定量分析肿瘤内部的SWI低信号。手术后病理确认肿瘤分级和异柠檬酸脱氢酶1(IDH1)-R132H-突变状态,比较低级别胶质瘤(Lgg)和高级别胶质瘤(Hgg)之间、(IDH1)-R132H阴性和阳性的肿瘤之间、CEMRI明显强化与不明显强化的胶质瘤之间,SWI-LIV值的差

关键词：肿瘤分级胶质瘤 IDH1 浸润性术前弥漫性 LIV 图像

多发性硬化病人斑块中的静脉——采用7TMR成像的纵向研究

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国际医学放射学杂志 2015年第6期 606-606页

作者： A.Dal-Bianco S.Hametner g.grabner M.Schernthaner C.Kronnerwetter A.Reitner 柴超 Department of Neurology Medical University of Vienna

摘要目的监测多发性硬化病人在3.5年的时间内与年龄匹配的正常对照组相比斑块内静脉容积的变化。方法 10例多发性硬化病人每年进行神经病学检查与MR检查。在7

关键词：斑块正常表现白质病理过程髓质静脉多发性硬化病

3.0 T MR扩散加权成像对乳腺病变的鉴别诊断:扩散参数选择对诊断的影响

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国际医学放射学杂志 2010年第1期 69-69页

作者： W.Bogner S.gruber K.Pinker g.grabner A.Stadlbauer M.Weber 陈仁彪 Department of Radiology Medical University Vienna/Vienna General Hospital

目的从不同类型乳腺病变和正常乳腺组织的表观扩散系数(ADC)准确性、精确性及DWI对比噪声比(CNR)的角度来比较不同的扩散加权成像参数方案对诊断质量的影响。材料与方法本研究获得了病人的知情同意以及伦理委员会的

关键词：鉴别诊断扩散加权乳腺病变对比噪声比 T MR

“Wood-nacre”:Development of a Bio-inspired Wood-Based Composite for Beam and 3D-Surface Elements with Improved Failure Mechanisms

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Journal of Bionic Engineering 2023年第4期20卷 1701-1711页

作者： Ulrich Müller Peter Halbauer Alexander Stadlmann Maximilian grabner Hajir Al-musawi Bernhard Ungerer Maximilian Pramreiter Department of Material Science and Process Engineering Institute of Wood Technology and Renewable MaterialsUniversity of Natural Resources and Life SciencesKonrad-Lorenz-Straße 243430Tulln an der DonauAustria Hycobility Engineering&Technologies gmbH Stadiongasse 6-8/Top281010ViennaAustria

Following the natural structure of the nacre,the material studied consists of a multitude of hexagonal tiles that are glued together in an offset manner with a ductile *** so-called“wood nacre”consists of macroscopic tiles of birch wood veneer with a thickness of 0.8 mm and a size of 20 or 10 mm in diameter in order to mimic the aragonite tiles and the ductile PUR-adhesive corresponds to the layers of collagen in between.E-modulus(MOE),bending strength(MOR)and impact bending strength of the samples were determined and compared with reference samples of birch laminated *** hierarchical layered structure of the tiles does not cause any relevant loss in *** nacre,“wood nacre”also shows tough fracture behaviour and a high homogenization ***,strain hardening and high fracture toughness of the natural model could not be fully *** reason for this is the insufficient ratio between the strength and stiffness of the veneer layers and the *** adjusting the size of the tiles,increasing the strength and surface roughness of the veneers,*** densification,and using more ductile adhesives that can be applied in smaller layer thicknesses,it should be possible to better reproduce the natural ratios of nacre and thus achieve a significant improvement in the material properties of“wood nacre”.In addition to the mechanical properties,the high potential of the new material lies in the possibility of producing 3D shell-shaped elements for lightweight wood hybrid construction.

关键词： Bio-inspired Damage tolerance Failure behaviour Hierarchical structure Nacre Work of fracture

Cryogenic forming behaviour of AW-6016-T4 sheet

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Transactions of Nonferrous Metals Society of China 2017年第6期27卷 1257-1263页

作者： M.KUMAR N.SOTIROV F.grabner R.SCHNEIDER g.MOZDZEN LKR Leichtmetallkompetenzzentrum Ranshofen gmbH Austrian Institute of Technology Postfach 26 5282 Ranshofen Austria BENTELER Automobiltechnik gmbH An der Talle 27-31 33102 Paderborn Germany Voestalpine Polynorm gmbH & Co. Kg PolynormstraB 1 73529 Schwabisch Gmund Germany Aerospace & Advanced Composites gmbH Viktor-Kaplan-Strasse 2 2700 Wiener Neustadt Austria

The objective of this work is to study the cryogenic sheet metal forming behaviour of precipitation hardening *** this regard,the flow curves and forming limit curves were obtained by tension and Nakazima experimental testing methods in thetemperature ranges from-196to25°*** was found that strength and elongation increase with decreasing *** butperceived differences between microstructure of the material deformed at the room and cryogenic temperatures respectively wereidentified by electron backscatter diffraction(EBSD)***,no significant difference in the precipitation kinetics duringcontinuous heating in the DSC has been *** study has demonstrated the potential of cryogenic forming by manufacturinga B-pillar part with8mm depth of side design element as compared to6mm at room temperature.

关键词： AW-6016-T4 alloy cryogenic forming strain hardening forming limit curve

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