Results 21 to 30 of about 47,693 (267)
International Journal of Naval Architecture and Ocean Engineering, 2022 The Vortex-Induced Vibration (VIV) of a circular cylinder with different surface roughness is numerically simulated at a subcritical Reynolds number of 3900.
Wei Chen +5 more
doaj +1 more source
Mathematics, 2023 This study presents a novel approach to parameterize the geometry of a morphing trailing-edge flap that allows its aerodynamics to be optimized while capturing the expected structural behavior of the flap.
Martynas Lendraitis +1 more
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Revista IBRACON de Estruturas e Materiais, 2020 Precast concrete girders on bearing pads are subjected to instability depending on several variables such as span length, initial imperfections and bearing pads behavior.
L. C. REIS, P. A. KRAHL, M. C. V. LIMA
doaj +2 more sources
Health Promotion & Physical Activity, 2021 Introduction: Extreme levels of sleep deprivation, fragmentation and management, are major problems in many sportive disciplines, ultramarathons, polar or extreme altitude expeditions, and in space operations. Material and methods: Polysomnographic (PSG)
Mirco Gindulis +6 more
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Fluid-structure interaction study on flexible sail performance in upwind conditions
Zhongguo Jianchuan Yanjiu, 2022 ObjectiveThe shape of a sail influences the airflow characteristics around it, and flexible sails are prone to large nonlinear deformation under wind pressure.
Zejiang FANG +5 more
doaj +1 more source
Lifting the Curtain on the Conditions of Sexual Initiation Among Youth in Ethiopia [PDF]
SSRN Electronic Journal, 2012 Deriving accurate estimates of the level of sexual coercion is challenging because of the stigma that is attached to the experience. This study examines the effectiveness of a nonverbal response-card method to reduce social desirability bias in reports of the conditions of sexual initiation among youth in southwestern Ethiopia.The conditions ...
David P, Lindstrom +3 more
openaire +2 more sources
The Future of Vertical Lift: Initial Insights for Aircraft Capability and Medical Planning [PDF]
Military Medicine, 2012 The U.S. Army continues to evaluate capabilities associated with the Future of Vertical Lift (FVL) program-a futures program (with a time horizon of 15 years and beyond) intended to replace the current helicopter fleet. As part of the FVL study, we investigated required capabilities for future aeromedical evacuation platforms.
Nathaniel D, Bastian +5 more
openaire +2 more sources
Applied Sciences, 2017 The control of vortex-induced vibration (VIV) in shear flow with different distributions of Lorentz force is numerically investigated based on the stream function–vorticity equations in the exponential-polar coordinates exerted on moving cylinder for Re =
Hui Zhang +5 more
doaj +1 more source
Biomechanical Characterization of the CrossFit® Isabel Workout: A Cross-Sectional Study
Applied SciencesA cross-sectional study was conducted to biomechanically characterize Isabel’s workout (30 snatch repetitions with 61 kg fixed weight), focusing on eventual changes in knee, hip and shoulder angles.
Manoel Rios +6 more
doaj +1 more source
The Secondary Lifting Performance of Crawler Crane Under Delay Coefficient Control Strategy
MachinesCrawler cranes are mobile lifting equipment used in the process of hoisting goods. After the initial lifting, the crane may need a secondary lift due to adjustments in the position or height of the load.
Jin Zhang +5 more
doaj +1 more source