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131.
A mathematical model relating power output of rower to stroke rate on an ergometer (the Concept II Indoor Rower TM, Model
C) is studied. The model is used to analyse the ergometer performance of a particular rower. It is determined that he can
be more efficient (i.e. decrease power output while maintaining fixed velocity) by decreasing stroke rate, but at the expense
of increasing force during the drive. It is also shown that he can be more efficient by increasing the drag factor (using
higher vent setting) without increasing force. Dependence of power output on rowing style (the shape of the force curve) is
also examined. It is shown that variation of force during the drive has little effect on efficiency, but efficiency is reduced
by asymmetry of the force curve that favours the legs. 相似文献
132.
关于有氧健身操的调查与研究 总被引：9，自引：0，他引：9
通过对有氧健身操、有氧操的锻炼内容、强度及音乐的调查,认为目前参与有氧健身操不乏其人．但大多数人都进行得较盲目。建议规范健身组织以及健全健身指导员组织。 相似文献
133.
J. Avenhaus R. Gotzhein T. H?rder L. Litz K. Madlener J. Nehmer M. Richter N. Ritter D. Rombach B. Schürmann und G. Zimmermann 《Informatik - Forschung und Entwicklung》1998,13(4):227-234
Ohne Zusammenfassung 相似文献
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Klaus-Peter L?hr 《Informatik - Forschung und Entwicklung》1999,14(2):61
Ohne Zusammenfassung 相似文献
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Adila Pa?ali? Kreso 《International Review of Education/Internationale Zeitschrift für Erziehungswissenschaft/Revue internationale l'éducation》2008,37(4):353-374
Bosnia and Herzegovina (BiH), much like other eastern-European countries, has faced a brief period of transition from the
socialist system to capitalism. However, this was interrupted in BiH by a brutal war lasting four years. Social systems and
infrastructure were damaged or destroyed, including education, which was harnessed during the war to divide the country and
then perpetuate these divisions. The author deals with some of the strongest and most enduring impacts that the war has had
on education, which even now, more than 10 years after the war, pose a serious threat to this young country. The most obvious
include the division of youth according to nationality, religion or language, the unequal positions of certain groups in education,
and very clear segregation and discrimination. She points out some of the most frequent and overt ways in which intolerance
towards other nationalities is displayed through textbooks, especially those used in parts of BiH subject to a struggle for
independence during the war. 相似文献
140.