منابع مشابه
The optimum finger spacing in human swimming.
Competitive swimmers spread fingers during the propulsive stroke. Due to the inherent inefficiency of human swimming, the question is: does this strategy enhance performance or is it just a more comfortable hand posture? Here we show, through computational fluid dynamics (CFD) of a 3D model of the hand, that an optimal finger spacing (12 degrees , roughly corresponding to the resting hand postu...
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The required length of vertical ground heat exchangers (GHX) used in ground-coupled heat pump (GCHP) systems is determined so that the outlet temperature from the GHX remains within certain limits for the worst ground load conditions. These conditions may not necessarily occur after 10 or 20 years of operation, as is usually assumed, but often occur during the first year of operation. The prima...
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W. Hofmann∗ a, G. Hermann a, A. Konopelko a, H. Krawczynski a, C. Köhler a, G. Pühlhofer a, F.A. Aharonian a, A.G. Akhperjanian b, M. Aye a, J.A. Barrio c,d, K. Bernlöhr a,h, J.J.G. Beteta d, H. Bojahr f, J.L. Contreras d, J. Cortina d, A. Daum a, T. Deckers e, J. Fernandez c,d, V. Fonseca d, J.C. Gonzalez d, G. Heinzelmann g, M. Hemberger a, A. Heusler a, M. Heß a, H. Hohl f, I. Holl c, D. Hor...
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3135 S. State St. Suite 108 Ann Arbor MI 48108 Phone: 734-761-1956 Fax: 734-761-9855 Email: [email protected] Optimum fin spacing for fan-cooled heat sinks
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The optimum time and space distribution of upper-air observations is considered in connection with the detection and prediction of instability lines-a mesoscale phenomenon. It is shown that the optimum spacing of observational stations is not only a function of the scale of the phenomena to be detected but of observational and analytical errors as well. When these errors are considered the opti...
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ژورنال
عنوان ژورنال: Energy Procedia
سال: 2014
ISSN: 1876-6102
DOI: 10.1016/j.egypro.2014.06.122