1,721,124 research outputs found
Preliminary analysis of the scaling exponents in channel flow turbulence
No full textWe briefly present some results about scaling laws in a turbulent channel flow. We analyse the scaling exponents of channel flow turbulence by using data from direct numerical simulations. (C) 1999 The Japan Society of Fluid Mechanics and Elsevier Science B.V. All rights reserved
Un mosaico inedito da Anzio (RM)
No full textNell'articolo viene descritta con dati inediti la topografia antica di Anzio, con un focus su un nuovo mosaico con maschera teatral
Lattice Boltzmann simulation of open flows with heat transfer
No full textA thermal lattice Bhatnagar–Gross–Krook model with doubled populations, together with a new temperature boundary condition, is used to simulate thermal flows with viscous heating effects. Simulations of thermal Couette and Poiseuille flows show that the present model works over a wide range of parameters. Open flow configurations are discussed to demonstrate that basic thermal effects such as expansion cooling are correctly reproduced
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Ultrathin fibers from electrospinning experiments under driven fast-oscillating perturbations
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