965 resultados para Circular Statistics
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In this paper we investigate the local flame surface statistics of constant-pressure turbulent expanding flames. First the statistics of local length ratio is experimentally determined from high-speed planar Mie scattering images of spherically expanding flames, with the length ratio on the measurement plane, at predefined equiangular sectors, defined as the ratio of the actual flame length to the length of a circular-arc of radius equal to the average radius of the flame. Assuming isotropic distribution of such flame segments we then convolute suitable forms of the length-ratio probability distribution functions (pdfs) to arrive at the corresponding area-ratio pdfs. It is found that both the length ratio and area ratio pdfs are near log-normally distributed and shows self-similar behavior with increasing radius. Near log-normality and rather intermittent behavior of the flame-length ratio suggests similarity with dissipation rate quantities which stimulates multifractal analysis. (C) 2014 AIP Publishing LLC.
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Raufaste, C., Dollet, B., Cox, S., Jiang, Y. and Graner, F. (2007). Yield drag in a two-dimensional foam flow around a circular obstacle: Effect of liquid fraction. European Physical Journal E, 23 (2), 217?228 Sponsorship: Y.J. is supported by US DOE under contract No. DE-AC52-06NA25396. S.C. is supported by EPSRC (EP/D071127/1)
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Mode of access: Internet.
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Found also in U. S. Office of Education Report, 1895/96-1915/16, and in U. S. Office of Education Biennial survey of education in the United States, 1916/18-
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Published by the Bureau under its earlier name: Bureau of Statistics.
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Mode of access: Internet.
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Title from caption.
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Mode of access: Internet.
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1959/60- issued also as United States. Office of Education. Circular; <1969-1975> as Library statistics; < > as DHEW publication; <1975, 1977> as NCES; 1976 as University of Illinois, Graduate School of Library Science. Monograph no. 16
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