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钢筋混凝土墙准静力循环试验和塑性铰分析

钢结构(中英文) 2009年第9期 88-89页

作者： Alessandro Dazio katrin beyer Hugo Bachmann

在ETH Zurich完成了6个钢筋混凝土墙准静力循环试验,并对试验结果进行分析。这些大比例尺的试验对不同竖向钢筋配筋率和欧洲中部不同延性钢筋的钢筋混凝土墙的变形性能进行研究。试验单位提供的整体和局部性能的试验数据都可联机使用,... 详细信息

在ETH Zurich完成了6个钢筋混凝土墙准静力循环试验,并对试验结果进行分析。这些大比例尺的试验对不同竖向钢筋配筋率和欧洲中部不同延性钢筋的钢筋混凝土墙的变形性能进行研究。试验单位提供的整体和局部性能的试验数据都可联机使用,以供研究单位参考。试验结果显示:配筋率、翼缘和腹板的延性对于钢筋混凝土墙的性能至关重要。通过比较从试验中获得的基础曲率与截面分析得到的曲率,建议在塑性铰分析中区分应变极限与极限状态,在钢筋混凝土结构墙的评估和基础性能设计中采用应变极限。

关键词：钢筋混凝土结构墙承载能力设计大比例试验循环特性局部变形塑性铰分析

Design and Optimization of Steel Car Body Structures via Local Laser-Strengthening

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Engineering（科研） 2016年第5期8卷 276-286页

作者： Markus Wagner Axel Jahn Eckhard beyer Daniel Balzani Division of Laser Beam Joining Fraunhofer Institut f. Werkstoff- und Strahltechnik Dresden Germany Dresden Center for Computational Materials Science Dresden University of Technology Dresden Germany Institute of Mechanics and Shell Structures Dresden University of Technology Dresden Germany

Continuously rising demands of legislators require a significant reduction of CO2-emission and thus fuel consumption across all vehicle classes. In this context, lightweight construction materials and designs become a single most important factor. The main engineering challenge is to precisely adapt the material and component properties to the specific load situation. However, metallic car body structures using “Tailored blanks” or “Patchwork structures” meet these requirements only insufficiently, especially for complex load situations (like crash). An innovative approach has been developed to use laser beams to locally strengthen steel crash structures used in vehicle bodies. The method tailors the workpiece hardness and thus strength at selected locations to adjust the material properties for the expected load distribution. As a result, free designable 3D-strengthening-patterns surrounded by softer base metal zones can be realized by high power laser beams at high processing speed. The paper gives an overview of the realizable process window for different laser treatment modes using current high brilliant laser types. Furthermore, an efficient calculation model for determining the laser track properties (depth/width and flow curve) is shown. Based on that information, simultaneous FE modelling can be efficiently performed. Chassis components are both statically and cyclically loaded. Especially for these components, a modulation of the fatigue behavior by laser-treated structures has been investigated. Simulation and experimental results of optimized crash and deep drawing components with up to 55% improved level of performance are also illustrated.

关键词： Automotive Lightweight Structures Local Laser Treatment Laser Beam Strengthening Crash Simulation Laser Strengthening Laser Hardening

MECHANISM OF THE HYDROLYSIS OF Ras ***(H2O)2

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Sixteenth Congress of the International Union of Crystallography

作者： A.Preisinger A.beyer A.Bauer Institut für Mineralogie Kristallographie und StrukturchemieTechnische Universitt WienAustria Research Institute of Molecular Pathology ViennaAustria

The atomic structure of Ras p21 ist stabilized by a great number of intramolecular hydrogen *** structure includes a six stranded beta sheet,five alpha helices and ten loops(H-Ras ***(HO);Symmetry P312;PDB Dataset 5P21)(***,***,***, ***,***,***,EMBO J.,1990,9,2351-2359). Part of the Ras p21 molecule forms a giant anion hole used as GTP binding *** triphosphate group of ***(HO) is held in place by six hydrogen bonds of main chain NH of residues 13 to 18(loop 1:Gly13-

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C# COM+编程指南 4

Exploratory study on microRNA profiles from plasma-derived extracellular vesicles in Alzheimer’s disease and dementia with Lewy bodies

丛书名：万水计算机编程技术与应用系列

2002年

作者：（美）Derek.beyer 龚小平等译

本书向读者介绍了.NET框架中使用已有的COM+组件；如何用C＃语言创建全新的符合.NET组件；如何用C＃语言创建全新的符合.NET规范的COM+组件。

ISBN: (纸本)750841005X

本书向读者介绍了.NET框架中使用已有的COM+组件；如何用C＃语言创建全新的符合.NET组件；如何用C＃语言创建全新的符合.NET规范的COM+组件。

关键词：软件工具 C语言程序设计

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Translational Neurodegeneration 2019年第1期8卷 382-398页

作者： Ana Gámez-Valero Jaume Campdelacreu Dolores Vilas Lourdes Ispierto Ramón Reñé RamiroÁlvarez MPilar Armengol Francesc E.Borràs katrin beyer Department of Pathology Health Sciences Research Institute Germans Trias i Pujol(IGTP)Universitat Autònoma de BarcelonaBadalona 08916Spain REMAR-IVECAT group Health Sciences Research Institute Germans Trias i Pujol(IGTP)08916 BadalonaSpain Department of Neurology Hospital Universitari de BellvitgeL’Hospitalet de Llobregat 08907Spain Department of Neurology Hospital Universitari Germans Trias i Pujol08916 BadalonaSpain Genomic and Microscopy facilities Health Sciences Research Institute Germans Trias i Pujol(IGTP)08916 BadalonaSpain Department of Cell Biology Physiology and ImmunologyUniversitat Autònoma de Barcelona(UAB)BarcelonaSpain

Background:Because of the increasing life expectancy in our society,aging-related neurodegenerative disorders are one of the main issues in global *** of these diseases are characterized by the deposition of misfolded proteins and a progressive cognitive *** these diseases,Alzheimer’s disease(AD)and dementia with Lewy bodies(DLB)are the most common types of degenerative *** both show specific features,an important neuropathological and clinical overlap between them hampers their correct *** this work,we identified molecular biomarkers aiming to improve the misdiagnosis between both ***:Plasma extracellular vesicles(EVs)-from DLB,AD and healthy controls-were isolated using size-exclusion chromatography(SEC)and characterized by flow cytometry,Nanoparticle Tracking Analysis(NTA)and cryo-electron *** Generation Sequencing(NGS)and related bibliographic search was performed and a selected group of EV-associated microRNAs(miRNAs)was analysed by ***:Results uncovered two miRNAs(hsa-miR-451a and hsa-miR-21-5p)significantly down-regulated in AD samples respect to DLB patients,and a set of four miRNAs(hsa-miR-23a-3p,hsa-miR-126-3p,hsa-let-7i-5p,and hsamiR-151a-3p)significantly decreased in AD respect to *** two miRNAs showing decreased expression in AD in comparison to DLB provided area under the curve(AUC)values of 0.9 in ROC curve analysis,thus suggesting their possible use as biomarkers to discriminate between both *** gene analysis of these miRNAs using prediction online tools showed accumulation of phosphorylation enzymes,presence of proteasome-related proteins and genes involved in cell death among ***:Our data suggest that plasma-EV associated miRNAs may reflect a differential profile for a given dementia-related disorder which,once validated in larger cohorts of patients,could help to improve the differential diagnosis of DLB versus AD.

关键词： Neurodegenerative disorders Biomarker Exosomes Next generation sequencing Extracellular vesicles

Mechanical Properties of Remote-Laser Cut CFRP and Thermographic Laser-Process Monitoring

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Materials Sciences and Applications 2020年第8期11卷 560-575页

作者： Michael Rose Sebastian Schettler Florian klemm Eckhard beyer Martina Zimmermann Technische Universitä t Dresden Institute of Materials Science Dresden Germany Fraunhofer Institute for Material and Beam Technology Dresden Germany Technische Universitä t Dresden Institute of Manufacturing Science and Engineering Dresden Germany

Remote-laser beam cutting is a productive technology without tool wear. Especially when cutting carbon fiber reinforced polymers (CFRP), it offers constant manufacturing quality. Since it is a thermal process, a heat-affected zone (HAZ) is formed at the edge of the cut. Based on quasi-static and cyclic mechanical tests on open-hole specimens, the influence of the process on the mechanical properties of CFRP is shown. The quasi-static tests are in good correlation with results from other researchers by indicating an increase in the maximum tensile stress of the test specimens, cut by remote-laser. The reason is the rearrangement of the shear stresses and a reduction of the notch stress concentration. However, the results of the present study show that excessive expansion of the HAZ leads to a reduction in the maximum tensile stress compared to milled test specimens. Under cyclic load conditions, remote-laser beam cutting does not lead to a more pronounced degradation than milling. The mechanical properties of the notched test pieces are sensitive to the expansion of the HAZ. For the production of components it is therefore necessary that the remote-laser beam cutting is carried out under controlled and documentable conditions. For this purpose, process thermography was tested as a tool for quality assurance. The results show that the technology is basically suitable for this task.

关键词： CFRP Remote Laser Cutting Fatigue Process Thermography Process Monitoring

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由掺砷氧化物源向硅中扩砷的机理

微纳电子技术 1977年第5期 62-66页

作者： k.D.beyer 胡成烈

以前,采用改变掺砷玻璃中含砷浓度的办法研究了掺砷氧化物作源的砷在硅和二氧化硅中的扩散特性。Ghezzo 和 Brown 发现,在氩气中扩散之后,自掺砷氧化物源扩散的薄层电阻随着掺杂氧化物玻璃中砷浓度的增加而减小,直到一个确定的浓度为止... 详细信息

以前,采用改变掺砷玻璃中含砷浓度的办法研究了掺砷氧化物作源的砷在硅和二氧化硅中的扩散特性。Ghezzo 和 Brown 发现,在氩气中扩散之后,自掺砷氧化物源扩散的薄层电阻随着掺杂氧化物玻璃中砷浓度的增加而减小,直到一个确定的浓度为止。高于掺砷氧化物的这一浓度,则薄层电阻随着掺杂氧化物中砷浓度的增加而增大。但是掺砷氧化物在氩气中扩散之后,偏离了薄层电阻随砷浓度而变化的关系,还没有得到解释。

关键词：砷氧化氨气氢气砷浓度工业气体薄层电阻势垒层物源

Accuracy of combined PET/CT in image-guided interventions of liver lesions: An ex-vivo study

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World Journal of Gastroenterology 2006年第15期12卷 2388-2393页

作者： Patrick Veit Christiane kuehle Thomas beyer Hilmar kuehl Andreas Bockisch Gerald Antoch Department of Diagnostic and Interventional Radiology and Neuroradiology Department of Nuclear Medicine University Hospital Essen

瞄准：在肝损害 interventional 设备放真希望是一项挑战性的任务 CT 是可得到的。我们在 interventional 肝研究为 interventional 设备的本地化调查了联合 PET/CT 图象的潜在的利益。方法：三十损害各个亢奋稠密， isodense 和低亚硫... 详细信息

瞄准：在肝损害 interventional 设备放真希望是一项挑战性的任务 CT 是可得到的。我们在 interventional 肝研究为 interventional 设备的本地化调查了联合 PET/CT 图象的潜在的利益。方法：三十损害各个亢奋稠密， isodense 和低亚硫酸钠与正常肝实质相比的稠密的变细被注入 15 个 ex-vivo 猪肝。所有损害由包含 0.5 MBq 的胶的一样的数量组成(18 ) F-FDG。后面的损害插入，一根 interventional 针完全在 CT 指导下面被放在每损害。在那以后， PET/CT 研究被执行。在损害以内的针的本地化独自为 CT 被估计， PET/CT 和根平均数平方(RMS ) 是计算的。结果与在用作参考的标准的损害解剖以后的宏观的大小相比。结果：在低亚硫酸钠 -- 并且 isodense 损害 PET/CT 在定义 interventional 设备的位置证明更精确什么时候与 CT 相比独自一个。为 CT 和 PET/CT 的吝啬的 RMS 在 isodense 和低亚硫酸钠显著地不同稠密的损害。没有有效差量被作出对有利的裁决亢奋的稠密的损害。结论：联合 FDG-PET/CT 成像在 FDG 宠物积极的肝损害有关针位置独自比 CT 提供更精确的信息。因此联合的 PET/CT 可能为一台 interventional 设备的本地化是潜在地有益的不仅，但是可能也为在 interventional 肝的指导有益过程。

关键词： PET CT检查肝损伤射频照射

高活性氧化亚铜薄膜材料的绿色合成研究（英文）

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Chinese Journal of Chemical Physics 2019年第3期32卷 365-372,I0002页

作者： Achraf El kasmi Henning Vieker 吴令男 André beyer Tarik Chafik 田振玉中国科学院工程热物理研究所北京100190 阿卜杜勒马立克·爱莎蒂大学坦吉尔B.P.416 中国科学院大学北京100049 德国比勒菲尔德大学比勒菲尔德D-33615

本文采用一步脉冲雾化化学气相沉积法在250℃下制备了氧化亚铜薄膜催化剂.实验研究了前驱体中掺杂水对氧化铜薄膜表面形貌、拓扑结构、表面成分和光学特性的影响规律.结果表明所制得的催化剂为纯相的氧化亚铜.前驱体溶液中掺杂水会导致... 详细信息

本文采用一步脉冲雾化化学气相沉积法在250℃下制备了氧化亚铜薄膜催化剂.实验研究了前驱体中掺杂水对氧化铜薄膜表面形貌、拓扑结构、表面成分和光学特性的影响规律.结果表明所制得的催化剂为纯相的氧化亚铜.前驱体溶液中掺杂水会导致氧化亚铜的晶粒变小,从而使得其光学能隙从2.16eV降至2.04eV.原子力显微镜结果表明随着水的加入,氧化亚铜的表面粗糙度降低,表面更加均匀.此外,利用密度泛函理论计算得到了水和乙醇在氧化亚铜薄膜表面的吸附和反应特性,并提出了氧化亚铜的形成机理.本文开发了一种低成本且实际可行的薄膜制造方法,该方法在太阳能电池和半导体等领域具有潜在应用.

关键词：氧化亚铜薄膜脉冲雾化热蒸发化学气相沉积绿色合成光学和拓扑特性光学带隙密度泛函理论计算