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捷克Helfstyn城堡重建

现代装饰 2020年第12期 28-35页

作者： miroslav Pospisil BoysPlayNice(摄影) 郭映琴(编译) 不详

Helf?tyn城堡坐落在摩拉维亚门山谷之上,是捷克共和国内除布拉格城堡外的第二大城堡。2014年,当地出台了关闭文艺复兴时期宫殿废墟的决定,以避免由于建筑老化坍塌造成严重安全隐患。作为城堡的所有者,奥洛莫乌茨市政府要求修建新屋顶的... 详细信息

关键词：修复计划 3D模型摩拉维亚捷克共和国安全隐患设计团队城堡

The Protection against Lightning of an Overhead Line Uprated from 225 kV to 400 kV

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Journal of Energy and Power Engineering 2012年第2期6卷 267-275页

作者： Alain Xemard Sebastien Dennetiere Ivo Uglesic Viktor Milardic Bosko Milesevic Philippe Grand Frangois Sauvegrain Pierre Stevenin miroslav Mesic Electricity of France Research Division Clamart 92141 France Reseau Transport ElectricitY Transmission System Operator La Defense 92919 France Faculty of Electrical Engineering and Computing University of Zagreb Zagreb 10000 Croatia HEP Transmission System Operator Zagreb 10000 Croatia

The voltage uprating of existing overhead lines is an interesting solution for increasing the transmission of electricity, especially in areas where it is difficult to build new lines. If a line is uprated with minor changes of its design and without improvement of the grounding electrodes of towers, its lightning performance remains unchanged. The consequence is that the uprated line will have a lightning flashover rate very high compared to an overhead line of same nominal voltage but of standard design. One attractive solution to solve this problem is to use line arresters. The goal of this paper is to study the use of line arresters to achieve a satisfactory lightning performance of an overhead line uprated from 225 kV to 400 kV without major design modifications. In order to compare different strategies of line arrester installation the flashover rate is calculated based on a software able to launch automatically EMTP-RV. The software named LIPS has been developed under the cover of a partnership between Hydro-Quebec, RTE and EDF.

关键词： Lightning transmission line voltage uprating insulation coordination.

Antibodies Against Annexin V and Prothrombin,Their Correlation with Other Anti-phospholipid Antibodies in Recurrent Pregnancy Loss

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Journal of Reproduction and Contraception 2005年第1期16卷 35-46页

作者： Zdenka Ulcova-Gallova Petr Mukensnabl Sarka Hadravska Vendula Kyselova Jitka Slechtova Zdenka Micanova Katerina Bibkova miroslav Balvin Zdenek Rokyta Medical School and Faculty Hospital of Charles University Department of Obstetrics and Gynecology and Pathology Pilsen Czech Republic Department of Biology and Biochemistry of Fertilization Institute of Molecular Genetics Czech Academy of Sciences Prague Czech Republic Department of Haematology Pilsen Czech Republic Medical School and Faculty Hospital of Charles University Department of Obstetrics and Gynecology andPathology Pilsen Czech Republic

Objective To study the findings of serum antibodies against annexin V, prothrombin, ph-inositol, ph-acid, ph-ethanolamine, ph-serine, ph-glycerol, cardiolipin, and beta2-glycoprotein I and analyze the trophoblast annexin V receptors Methods Sera from 156patients aged 26-41 years with recurrent pregnancy loss （3-7 times） were investigated. Eighty-four fertile healthy women aged 24-38 years were included in a control group. ELISA methods were used for detecting a panel of sera anti-phospholipid antibodies. Immunolocalization of annexin V receptors in 143 trophoblast specimens of 156 patients was investigated by the immunofluorescence technique using Annexin V-FITC, Apoptosis and Annexin V-CY3 commercial kits. Results Positivity for anti-phospholipid antibodies mainly against ph-serine, ph- ethanolamine, and ph-inositol was found together in 80. 8%（126 out of 156 patients）, anti-prothrombin antibodies in 12% （18）, and anti-annexin V antibodies in 13. 5% （21） women. No significant levels of anti-phospholipid antibodies were found in 6 controls. Placenta immunohistopathology also exhibited some changes manifested by the presence of apoptotic and necrotic cells in trophoblast, and very few microthrombotization in some intervillous spaces. Conclusion Our detailed study demonstrated the prevalence of majority of antiphospholipid antibodies as a high risk factor for repeated reproductive failure. Very low microthrombosis in placentas could be explained by the changes of haemocoagulation properties out of uterus.

关键词： annexin V prothrombin anti-phospholipid antibodies trophoblast apoptosis recurrent pregnancy loss

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捷克的高压少油断路器

高压电器 1960年第4期 48-63页

作者： miroslav Kadlec,Mitos Saobotka,李建基西安高压电器研究所技术情报室工程师工程师

捷克斯洛伐克生产自生吹弧的少油断路器已有悠久的历史,这与普通电工技术的发展密切相关。但是,在第二次世界大战前,在这一专业领域内,本身缺乏研究与设计经验,为在电器方面赶上发达的国家,捷克的电力工业在开初时不得不仰仗国外。由那... 详细信息

捷克斯洛伐克生产自生吹弧的少油断路器已有悠久的历史,这与普通电工技术的发展密切相关。但是,在第二次世界大战前,在这一专业领域内,本身缺乏研究与设计经验,为在电器方面赶上发达的国家,捷克的电力工业在开初时不得不仰仗国外。由那时起就开始仿制水断路器即膨胀式断路器,直到不久前,该类断路器已成为35千伏以下断路器的主要品种。 1945年之后的年代不仅是对于生产电器具有重大意义的分水领而且是在开关技术领域内自行设计和研

关键词：断路器兆伏安时圈赤经圈灭弧装置灭弧室开断电流电压陡度励磁电流

不同时期接种AM真菌对大棚黄瓜产量及品质的影响

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中国蔬菜 2014年第8期 21-24页

作者：李聪贺超兴闫妍李衍素于贤昌 Martina Janouskova miroslav Vosatka 中国农业科学院蔬菜花卉研究所北京100081 捷克科学院植物研究所捷克pruhonice25243

研究不同时期接种丛枝菌根真菌根内球囊菌（Glomusintraradices，GI）对大棚土壤栽培黄瓜植株生长、产量及营养品质的影响。结果表明：黄瓜不同时期接种GI对其生长均有促进作用，与不接菌的对照相比，播种时接菌和移栽时接菌处理使黄瓜... 详细信息

研究不同时期接种丛枝菌根真菌根内球囊菌（Glomusintraradices，GI）对大棚土壤栽培黄瓜植株生长、产量及营养品质的影响。结果表明：黄瓜不同时期接种GI对其生长均有促进作用，与不接菌的对照相比，播种时接菌和移栽时接菌处理使黄瓜的单株产量分别提高了54%、34%；播种时接菌处理的黄瓜叶片的叶绿素含量比对照显著提高了14.7%～17.7%；播种时接菌和移栽时接菌的黄瓜硝酸盐含量较对照分别下降了9.4%和15.0%，总糖含量分别比对照提高了8.9%和7.1%；移栽时接菌处理的黄瓜粗蛋白含量比对照提高了4.6%；播种时接菌和移栽时接菌显著提高了黄瓜VC含量。表明接种GI对黄瓜生长和产量品质具有一定的改善作用。

关键词：大棚黄瓜根内球囊菌接菌时期产量品质

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逐次逼近型(SAR)模数转换器在马达控制中的应用

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电子产品世界 2004年第02A期11卷 58-61页

作者：程跃武 miroslav Oljaca Justin McEldowney TI公司

引言在一个典型的马达控制系统中(图1),马达相位线圈的电流和电压经由微控制器(μC)或DSP来测量和转换成数字信号.由于有高电压在马达相位线圈上,隔离的霍尔效应闭环传感器将马达的场信号转换成在A/D的输入范围内的电压信号.多通道SAR(... 详细信息

引言在一个典型的马达控制系统中(图1),马达相位线圈的电流和电压经由微控制器(μC)或DSP来测量和转换成数字信号.由于有高电压在马达相位线圈上,隔离的霍尔效应闭环传感器将马达的场信号转换成在A/D的输入范围内的电压信号.多通道SAR(逐次逼近)A/D转换器被用来做同步取样以得到正确相位信号.本文将分析闭环电流传感器及如何从A/D转换器实现最佳的信燥比.在此,我们采用ADS7864(6通道、12位、500KSPS)逐次逼近型A/D转换器.

关键词：逐次逼近型 SAR 模数转换器马达控制电流传感器工作原理

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Prosthetic heart valves for transcatheter aortic valve replacement

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BMEMat(BioMedical Engineering Materials) 2023年第2期1卷 78-99页

作者： Xinman Hu Shifen Li Pai Peng Beiduo Wang Wenxing Liu Xiaofei Dong Xiayan Yang miroslav Karabaliev Qifeng Yu Changyou Gao MOE Key Laboratory of Macromolecular Synthesis and Functionalization International Research Center for Functional PolymersDepartment of Polymer Science and EngineeringZhejiang UniversityHangzhouChina Shanghai NewMed Medical Technology Co. LtdShanghaiChina Department of Medical Physics Biophysics and RadiologyFaculty of MedicineTrakia UniversityStara ZagoraBulgaria

Transcatheter aortic valve replacement (TAVR) has the advantages of less trauma and faster postoperative recovery, which has brought the possibility to the elderly patient with valvular heart disease and is gradually replacing surgical aortic valve replacement (SAVR). The interventional valve used in TAVR needs to be compressed and transported through the catheter to the lesion site, and can still recover its original shape, structure and performance. This process requires that the material should be flexible, and the rigid mechanical valves in SAVR are not suitable. Recently, decellularized biological valves have been widely used in clinical practice, but their poor durability causes a limitation for long-term implantation. Therefore, the anti-calcification modification of biological valves and the design of new polymeric valves with good biostability have gained considerable attention. This review summarizes the calcification mechanism of biological valves and the research progress in anti-calcification modification strategies. Besides, the development of new polymeric valves is included, with special attention to representative cases, such as polysiloxane, polytetrafluor- ethylene, poly(styrene-block-isobutylene-block-styrene), and polyurethane- based materials. Finally, the challenges and future perspectives of artificial heart valve materials are discussed.

关键词： biological valve calcification durability polymeric valve transcatheter aortic valve replacement(TAVR)

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热轧中工作辊热应力测量有新法 008

Mechanism of Chalcopyrite Leaching in Oxidative Sulphuric Acid Solution

中国冶金报

作者： miroslav Raudensky Bart Vervaet 蒋波

本报讯近日，捷克和比利时的学者研究了热轧过程中工作辊上热应力测量的方法。在热轧生产过程中工作辊会受到热应力和机械应力的双重作用，而这两种应力都很难进行准确的测量。通过实验可以对冷却段的热应力进行描述，然而辊缝间的热...

本报讯近日，捷克和比利时的学者研究了热轧过程中工作辊上热应力测量的方法。在热轧生产过程中工作辊会受到热应力和机械应力的双重作用，而这两种应力都很难进行准确的测量。通过实验可以对冷却段的热应力进行描述，然而辊缝间的热应力仍很难测量。该研究则主要描述一

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Journal of Chemistry and Chemical Engineering 2011年第1期5卷 37-41页

作者： miroslav D. Sokic Branislav R. Markovic Vladislav Lj. Matkovic Nada D. Strbac Dragana T. Zivkovic Institute for Technology of Nuclear and Other Mineral Raw Materials 86 Franchet d ＇Esperey Street Belgrade 11000 Serbia Technical Faculty at Bor University of Belgrade Bor 19210 Serbia

The mechanism of the leaching process of chalcopyrite concentrate with sodium nitrate in sulphuric acid solution were studied and discussed. Chemical reactions of leaching and their thermodynamic probabilities are predicted based on the calculated Gibbs energies and analysis of E-pH diagrams. Experimental data, thermodynamic analysis, chemical, XRD, and SEM/EDX analyses of concentrate and the leach residues, were performed to develop a better understanding of the chemical reactions that took place in the system. Elemental sulphur was formed as the main leaching product, precipitated at the particle surfaces and tended to inhibit the leaching rate.

关键词： Chalcopyrite leaching mechanism sulpruric acid sodium nitrate.