Results 21 to 30 of about 917,142 (286)
Radar estimation of apparent canting angle in raindrops
Electronics Letters, 1992 The use of switched circular transmission in polarisation diversity radar enables an estimate of apparent canting angles in rain to be obtained. Results are presented from an X-band radar in Ottawa.
J. Tan, A.R. Holt, D.H.O. Bebbington
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Plane jets impinging on porous walls [PDF]
, 2002 The flow of a two-dimensional plane turbulent jet impinging on a porous screen has been studied experimentally. It is shown how the overall flow structure depends on the porosity of the surface. For low screen porosity (# < 0.41, say), transverse wall
Walklate, Peter, Castro, Ian, Cant, Ross
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Variation of canting-angle distribution as a function of wind velocity
Electronics Letters, 1977 A theoretical model for wind gusting, based on detalled observation of stroms, is presented as a basis for predicting rain-induced crosspolarisation. This model is used to provide an explanation for raindrop canting-angle distribution other than the wind-profile effect.
B.O. Mahar, P.J. Murphy
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The Influence of Saliva, Artificial Saliva and Propolis Extract on the Wettability of Heat−Cured and Visible Light−Cured Denture Base Material [PDF]
Al-Rafidain Dental Journal, 2011 Aims: To evaluate and compare the effect of human saliva, artificial saliva and propolis extract on the wettability of heat−cured and visible light −cured denture base material .Materials and Methods: A total of 80 samples were prepared , 40 samples ...
Luma M Al−Nema
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Numerical Analysis and Optimization of a Winglet for a Small Horizontal Wind Turbine Blade
Chemical Engineering Transactions, 2020 Wind energy is one of the main alternative energy sources and is present in various forms, from large offshore wind turbine installations, to small, privately used, small horizontal wind turbines (SHWT). Optimization of the turbine blades, and eventually
Charalampos Papadopoulos +4 more
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Applied SciencesAdaptive winglets improve aerodynamic efficiency by enabling geometry adjustments tailored to flight conditions. In this study, an engineering-oriented optimization framework is developed and applied to numerical aerodynamic evaluations based on the wing–
Wei Li +2 more
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Winglet Geometry Impact on DLR-F4 Aerodynamics and an Analysis of a Hyperbolic Winglet Concept
Aerospace, 2017 In this article, the growth of aerodynamic efficiency and the growth of the wing structural stress is studied for DLR-F4 typical transport aircraft wing-body, after installing classical Whitcomb winglets of different configurations and a delta wingtip ...
Djahid Gueraiche, Sergey Popov
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Turkish Journal of Orthodontics, 1998 The aim of the study was to investigate the relationships between the cant of posterior occlusal plane, anterior occlusal plane and occlusal plane, and craniofacial structures in class II division I malocclusions.
Nilüfer Darendeliler
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Engineering Applications of Computational Fluid MechanicsInspired by the tip feathers of soaring birds, the device of tip sails was designed and installed on the wing to achieve drag reduction. The influences of design parameters including cant angles, toe angles and twist angles on aerodynamic characteristics
Minghao Yang +3 more
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Turkish Journal of Orthodontics, 1998 The aim of the study was to investigate the relationships between the cant of posterior occlusal plane, anterior occlusal plane and occlusal plane, and craniofacial structures in class II division I malocclusions.
Gülnaz Leblebicioğlu Marşan
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