Results 11 to 20 of about 1,643,891 (268)
Basic Systems of Wind Wave Field
Coastal Engineering 1974, 1974 The study of wind waves is usually carried out in the following manner. At the first moment a homogenous wind field with the constant speed directed from the shore to the basin is occurred over the water surface restricted by a straight shore line. It is required to calculate statistic wave characteristics as functions of time and distance from the ...
Yu. M. Krylov +2 more
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Biotechnology for Biofuels, 2021 Background Bio-hydrogen production via dark fermentation of low-value waste is a potent and simple mean of recovering energy, maximising the harvesting of reducing equivalents to produce the cleanest fuel amongst renewables.
M. Arizzi +5 more
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Globally Hypoelliptic Systems of Vector Fields
Journal of Functional Analysis, 1993 The authors study the global hypoellipticity of differential operators associated to certain locally integrable structures defined over compact manifolds. They extend results of \textit{S. J. Greenfield} and \textit{N. R. Wallach} [Proc. Am. Math. Soc.
Bergamasco, A.P. +2 more
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Frontiers in Plant Science, 2018 Weed control by crops through growth suppressive root exudates is a promising alternative to herbicides. Buckwheat (Fagopyrum esculentum) is known for its weed suppression and redroot pigweed (Amaranthus retroflexus) control is probably partly due to ...
Aurélie Gfeller +4 more
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Topological field theory of dynamical systems [PDF]
Chaos: An Interdisciplinary Journal of Nonlinear Science, 2012 Here, it is shown that the path-integral representation of any stochastic or deterministic continuous-time dynamical model is a cohomological or Witten-type topological field theory, i.e., a model with global topological supersymmetry (Q-symmetry). As many other supersymmetries, Q-symmetry must be perturbatively stable due to what is generically known ...
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Field Observations of Nearshore Current System
Coastal Engineering 1972, 1972 The two systems based on the principle of photogrammetric surveying have been developed in order to accomplish the field observations of nearshore current system induced by waves, and were applied to the field investigations on the Shonan Coast, Kanagawa Prefecture, Japan (Horikawa, Sasaki et al, 1970).
Kiyoshi Horikawa, Tamio Sasaki
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Information, 2020 Student attendance during classroom hours is important, because it impacts the academic performance of students. Consequently, several universities impose a minimum attendance percentage criterion for students to be allowed to attend examinations ...
Apiruk Puckdeevongs +3 more
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UVP Measurement of Flow around a Baffle in a Rectangular Open Channel
Journal of Fluid Science and Technology, 2009 The effect of an intermediate standing baffle on the structure of flow in a rectangular open channel has been successfully captured by an Ultrasonic Velocity Profiler (UVP).
Hamidreza JAMSHIDNIA, Yasushi TAKEDA
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Dynamical systems study of chameleon scalar field [PDF]
Annals of Physics, 2015 The present work is an extensive study of the viable stable solutions of chameleon scalar field models leading to possibilities of an accelerated expansion of the universe. It is found that for various combinations of the chameleon field potential $V( )$ and the coupling $f( )$ of the chameleon field with matter, a stable solution for an accelerated ...
Roy, Nandan, Banerjee, Narayan
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Journal of Fluid Science and Technology, 2010 A flow structure around an intermediate standing baffle in a rectangular open channel has been investigated experimentally. The instantaneous vertical velocity components were successfully measured using an Ultrasonic Velocity Profiler (UVP).
Hamidreza JAMSHIDNIA, Yasushi TAKEDA
doaj +1 more source