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无间隙牵引杆的单元列车

国外铁道车辆 1990年第3期27卷 20-23页

作者： g.P.wolf 黄志辉孙翔

本文介绍了采用无问隙牵引杆的运煤单元列车的设计、工程分析及试验结果。

关键词：单元列车无间隙牵引杆

homogalacturonan MethyI-Esterification and Plant Development

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Molecular Plant 2009年第5期2卷 851-860页

作者： Sebastian wolf gregory Mouille Jerome Pelloux heidelberg Institute for Plant Science Im Neuenheimer Feld 360 69120 Heidelberg Germany Laboratoire de Biologie Cellulaire Institut Jean-Pierre Bourgin INRA Centre de Versailles-Grignon Route de St Cyr 78026 Versailles France EA3900-BioPI Biologie des Plantes et contrble des Insectes ravageurs Universite de Picardie 33 Rue St Leu 80039 Amiens France

The ability of a plant cell to expand is largely defined by the physical constraints imposed by its cell wall. Accordingly, cell wall properties have to be regulated during development. The pectic polysaccharide homogalacturonan is a major component of the plant primary walls. Biosynthesis and in muro modification of homogalacturonan have recently emerged as key determinants of plant development, controlling cell adhesion, organ development, and phyllotactic patterning. This review will focus on recent findings regarding impact of homogalacturonan content and methylesterification status of this polymer on plant life. Demethyl-esterification of homogalacturonan occurs through the action of the ubiquitous enzyme ＇pectin methyl-esterase＇. We here describe various strategies developed by the plant to finely tune the methyl-esterification status of homogalacturonan along key events of the plant lifecycle.

关键词： Carbohydrate metabolism cell walls Arabidopsis Pectin.

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布局对EMI滤波器性能影响的研究

电工技术学报 2008年第8期23卷 7-12,35页

作者：陈恒林钱照明 Zeng Zhaohui Christian wolf 浙江大学电气工程学院杭州310027 gRUNDFOS Management A/S Bjerringbro

由于近场耦合效应的影响,EMI滤波器元件相同但是布局不同时,在滤波性能上会表现出极大的差异。EMI滤波器对电磁场非常敏感,因此它的布局设计是非常关键的。本文以π型滤波器为研究对象,对几种典型布局情况下的滤波性能进行了比较研究。... 详细信息

由于近场耦合效应的影响,EMI滤波器元件相同但是布局不同时,在滤波性能上会表现出极大的差异。EMI滤波器对电磁场非常敏感,因此它的布局设计是非常关键的。本文以π型滤波器为研究对象,对几种典型布局情况下的滤波性能进行了比较研究。通过有限元分析软件提取了不同布局情况下的近场耦合参数,建立了包含近场耦合参数的滤波器高频模型,借助该模型可以对滤波器在150khz～30Mhz频率范围内的性能进行准确的预测。仿真和实验结果表明,滤波器中电容引线长度、接地情况和安放位置以及PCB输入输出走线的布置对滤波性能有重要的影响。

关键词： EMI滤波器近场耦合布局滤波性能

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德语学习 2004年第3期 12-13页

作者： wolf Wondratschek

Results of Invasive Electrophysiologic Evaluation in 268 Patients with Unexplained Syncope

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Journal of huazhong University of Science and Technology(Medical Sciences) 2003年第3期23卷 278-279页

作者：吕家高陆再英 Fredrik Voss wolf gang Schoels Department of Cardiology Tongji Hospital Tongji Medical College Huazhong University of Science and TechnologyWuhan 430030 Department of Cardiology University Heidelberg 69120 Germany

In order to assess the diagnostic value of invasive electrophysiologic study (EPS) in the patients with unexplained syncope, the electrophysiologic findings of 268 patients with unexplained syncope despite a complete clinical evaluation were analyzed Results showed positive EPS finding was 38% in total patients and 50% in the patients aged >70 years With increasing age, the diagnostic yield of EPS also increased No significant differences of complication rate were found among the different age groups It was concluded that EPS havd high diagnostic value in the patients with unexplained syncope Its complications are few and mild EPS may be recommended in elderly patients with unexplained syncope

关键词： syncope elderly electrophysiology

Beijing:Capital's hidden Assets

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China Weekly 2022年第6期 60-61页

作者： Julie wolf 不详

A trip off Bejing's beaten track rewards the visitor with quirky sites away from mainstreamtouristtrails,Beijing is a name that conjures visions of ancient world wonders,imperial palaces,and modern *** places in the world have such a long,varied,and complicated history and it is no wonder that this is one of the first places travelers explore when they get to *** go to the great Wall,the Forbidden City,and watch the flag ceremony in Tiananmen square and think,“I have done it!I have seen Beijing!”.

关键词： China. Beijing mainstream

Rede auf der Alexanderplatz-Demonstration

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德语人文研究 2012年第1期 6-8+4-5页

作者： Christa wolf

Liebe Mitbürgerinnen und Mitbü*** revolutionre Bewegung befreit auch die *** bisher so schwer auszusprechen war,geht uns auf einmal frei von den *** staunen,was wir offenbar schon lange gedacht *** was wir uns jet... 详细信息

关键词： der Rede auf der Alexanderplatz-Demonstration

Zhangjijie:hiking into the Movies

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China Weekly 2022年第4期 60-61页

作者： Julie wolf 不详

I'm sweating,my legs are shaking and I'm gasping for *** app on my phone says I have already climbed the equivalent of almost 200 fights of stairs and it's only *** as we crest the top of the mountain all I can think is“worth it!”This was not a trip I would have planned on my *** due to the pandemic,it had been half a year since I was able to go anywhere outside of ***,when a group of friends I lovingly refer to as“The Camel of the Month Club”(don't askl)decided to spend a long weekend hiking in Zhangjiajie I couldn't book my ticket fast enough.

关键词： shaking closer outside

Universities and global Market

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Chinese Business Review 2011年第9期10卷 729-733页

作者： Petr wolf Silesian University Opava Czech Republic

The article interested in the universities in the global market. Author briefly describes the situation of the many universities of the point of view of education, research, orientation, system of financing and management of the universities. The whole article is based on the author＇s practical experiences. The research objective was to determine how the professional community is looking at private universities and state universities. It was based on the opinion of the quality of graduates and the number of academic staff who are working at state universities These academics have mostly negative view of private universities as well as the knowledge of graduates of these private schools. however, the opinion ofstaffin practice, especially managers in manufacturing companies, trading companies, companies selling services, as well as senior officials in government, are not so negative. By contrast in certain areas such as marketing, business, management, Information and Communication Technology etc., was rather neutral or positive. The politicians were interested about these information with regard to educational reform （reform of universities is still not actual--note the author） and the expected necessary cuts of spending to higher education from the state budget. Unfortunately, the research project due to political changes in 2009 was not completed and obtained only partial results. Despite of this fact the author decided to process the article below Opinions on the topic of public vs. private univeristies were mainly obtained informally from experts from academic area （both public and private）, managers, various specialists, but also from the students themselves. In conclusion man can say that the demand for people who are able to quickly demonstrate their knowledge in practice is still stronger. The title becomes second-rate （unfortunately not quite in the public and state administration）. Very strong demand is the active practice of communication in English （it f

关键词： universities global market management research students ranking