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Experiments With a Wing From Which the Boundary Layer Is Removed by Pressure or Suction
With an unsymmetrical wing and a rotating Magnus cylinder, the lift is produced by the superposition of parallel and circulatory flows. An explanation of the circulatory flow is furnished by the boundary-layer theory of Prandtl and the consequent vortex formation. According to this explanation, it must evidently be possible to increase the circulation either by increasing the size of the stronger (lower) vortex or by decreasing the size of the weaker (upper) vortex.
Date:
July 1928
Creator:
Wieland, K.
System:
The UNT Digital Library
Taxonomic Review of American Long-tailed Shrews (Genera Sorex and Microsorex)
Brief summary of the habitat, habits, food and economic status, measurements, subfamilies, and subgenera of genera Sorex and Microsorex.
Date:
July 1928
Creator:
Jackson, Hartley H. T.
System:
The UNT Digital Library
Report of the Twentieth National Conference on Weights and Measures, 1927
Report of the annual conference on weights and measures, hosted by the U.S. National Bureau of Standards in Washington D.C. It includes conference proceedings, a list of attendees, information about committees and officers, and other reports or commentaries discussed at the meetings.
Date:
1928
Creator:
United States. Bureau of Standards.
System:
The UNT Digital Library