Results 291 to 300 of about 249,769 (331)
Abstract Purple sulfur bacteria (PSB) of the family Chromatiaceae (Gammaproteobacteria) can perform chemo‐ and photo‐lithoautotrophy (through anoxygenic photosynthesis) in anoxic layers of freshwater stratified (including meromictic) lakes. This group has been extensively studied via physiological and ecological approaches, albeit their genomics has ...
Pedro J. Cabello‐Yeves+7 more
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This study introduces material selection maps—that is, charts indicating crevice corrosion resistance as a function of temperature and electrochemical potential—illustrating their applicability using nickel‐based alloy 718 as a case study. Crevice corrosion susceptibility maps developed in this study are a new approach that shows how environmental ...
Ahmed Reyad+3 more
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Journal of Plant Nutrition and Soil Science, EarlyView.
Axel Göttlein, Michael Kohlpaintner
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Stagnation Point Combustion of a Monopropellant [PDF]
The steady-state stagnation point transport and reaction equations describing premixed monopropellant combustion have been investigated approximating the chemical processes by an endothermic solid-phase pyrolysis and a one-step exothermic unidirectional gas-phase reaction.
G. Adomeit, W. Hock
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Local preconditioning in a stagnation point [PDF]
Local preconditioning yields desirable effects such as convergence acceleration and preservation of accuracy in the incompressible limit, but these come at the expense of robust* Fellow AIAA. t ~ e m b e r AIAA. SMember AIAA. §Member AIAA. ness. Current research focuses on making the various preconditioned Euler discretizations that have been developed
Lisa Mesaros+3 more
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AN UNSTEADY STAGNATION-POINT FLOW
The Quarterly Journal of Mechanics and Applied Mathematics, 1989We consider the oscillatory flow at a two-dimensional stagnation point. We show, following the initiation of the motion, that the solution always develops a singularity at a finite time, and we discuss the implications of this for the flow over a cylinder which performs transverse harmonic ...
N. Riley, R. Vasantha
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Stagnation‐point Flow in Magnetohydrodynamics
ZAMM - Journal of Applied Mathematics and Mechanics / Zeitschrift für Angewandte Mathematik und Mechanik, 1967AbstractThe inviscid three‐dimensional stagnation‐point in magnetohydrodynamics is investigated in full generality. The analytic character of the flow depends on just two parameters, one of which characterizes the streamline pattern on the body and the other the effective interaction of the electromagnetic field. The pattern, according to linear terms,
G. S. S. Ludford, R. C. Boger
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Unsteady stagnation point flow
Applied Scientific Research, 1972In this paper we consider the changes in the two-dimensional stagnation point flow against a plane wall when the wall is impulsively set in motion in its own plane. In particular a solution which describes the final approach to the ultimate steady state is determined.
David G. Drake, P. N. Choudhury
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MIXED CONVECTION AT A STAGNATION POINT
The Quarterly Journal of Mechanics and Applied Mathematics, 1995We are concerned with the mixed convective flow at a two-dimensional stagnation point on a heated horizontal boundary. The forced flow may be a stagnation-point flow of either forward or rear type, and the free convective element is due to a pressure gradient that is induced by temperature variations along the boundary.
N. Riley, Norsarahaida Amin
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