Results 51 to 60 of about 367,561 (307)
Airfoil Aerodynamics in Proximity to Wavy Ground for a Wide Range of Angles of Attack
Applied Sciences, 2020 Wing-in-ground craft often encounter waves when flying over the sea surface, and the ground effect is more complicated than that of flat ground. Therefore, the aerodynamic characteristics of the NACA 4412 airfoil in proximity to wavy ground for a wide ...
Haode Hu, Dongli Ma
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Correlation of forebody pressures and aircraft yawing moments on the X-29A aircraft at high angles of attack [PDF]
In-flight pressure distributions at four fuselage stations on the forebody of the X-29A aircraft have been reported at angles of attack from 15 to 66 deg and at Mach numbers from 0.22 to 0.60.
Fisher, David F. +2 more
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Arthritis Care &Research, EarlyView.Objective Sjögren's disease is an autoimmune disorder that can impact multiple organ systems, including the peripheral nervous system (PNS). PNS manifestations, which can exist concurrently, include mononeuropathies, polyneuropathies, and autonomic nervous system neuropathies.
Anahita Deboo +88 more
wiley +1 more source
Catapult take off control based on model predictive control
Hangkong gongcheng jinzhanAfter separating from the catapult and leaving the flight deck，carrier-based aircraft face multiple constraints including sink rate，angle of attack，and pitch rate to ensure flight safety and quality. Traditional angle-of-attack protection control methods
QIAN Guohong +4 more
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Prediction of the noise from a propeller at angle of attack [PDF]
An analysis is presented to predict the noise of a propeller at angle of attack. The analysis is an extension of that reported by Mani which predicted the change in noise due to angle of attack to both unsteady loading and to azimuthal variation of the ...
Krejsa, Eugene A.
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Arthritis Care &Research, EarlyView.Objective We aimed to estimate the prevalence and cumulative incidence of hydroxychloroquine retinopathy (HCQ‐R) and its risk factors among patients receiving long‐term HCQ with rheumatic diseases through a systematic review and meta‐analysis of observational studies that used spectral‐domain optical coherence tomography (SD‐OCT) for screening ...
Narsis Daftarian +4 more
wiley +1 more source
Simulator study of the effectiveness of an automatic control system designed to improve the high-angle-of-attack characteristics of a fighter airplane [PDF]
A piloted, fixed-base simulation was conducted to study the effectiveness of some automatic control system features designed to improve the stability and control characteristics of fighter airplanes at high angles of attack.
Gilbert, W. P. +2 more
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Arthritis Care &Research, Accepted Article.Objective Cam morphology, a significant risk factor for hip osteoarthritis, is commonly quantified by the alpha angle (AA). This study aims to explore the potential of the triangular index ratio (TIR) to quantify cam morphology on anteroposterior radiographs by assessing the association between TIR‐defined cam morphology and the development of ...
Jinchi Tang +7 more
wiley +1 more source
Numerical Investigation of Aerodynamic Interactions between Rigid Sails Attached to Ship
Journal of Marine Science and EngineeringAs part of the strategy to achieve net-zero Greenhouse Gas (GHG) emissions in international maritime shipping, there is ongoing exploration into the use of wind propulsion systems as auxiliary ship propulsion devices. When considering a rigid sail as the
Akane Yasuda +2 more
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Experimental and theoretical supersonic lateral-directional stability characteristics of a simplified wing-body configuration with a series of vertical-tail arrangements [PDF]
An experimental investigation was conducted to provide a systematic set of lateral-directional stability data for a simplified wing-body model with a series of vertical-tail arrangements.
Lamb, M., Sawyer, W. C., Thomas, J. L.
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