Results 11 to 20 of about 47,693 (267)
Initial stage of plate lifting from a water surface [PDF]
Journal of Engineering Mathematics, 2015 This study deals with the flow induced by a rigid flat plate of finite length, initially touching a horizontal water surface, when it starts to move upwards with constant acceleration. In the present model, negative hydrodynamic pressures on the lower (wetted) surface of the plate are allowed, and thus, the water follows the plate due to the resulting ...
Korobkin, Alexander +2 more
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A New Aerodynamic Optimization Method with the Consideration of Dynamic Stability
International Journal of Aerospace Engineering, 2021 Dynamic stability is significantly important for flying quality evaluation and control system design of the advanced aircraft, and it should be considered in the initial aerodynamic design process.
Mi Baigang, Wang Xiangyu
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Lift the Ban? Initial Employment Restrictions and Refugee Labour Market Outcomes [PDF]
Journal of the European Economic Association, 2020 AbstractThis paper investigates the medium- to long-term effects on refugee labour market outcomes of the temporary employment bans being imposed on asylum seekers in many countries. Using a newly collected data set on employment restrictions together with individual data for refugees entering European countries between 1985 and 2012, our empirical ...
Fasani, Francesco +2 more
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Optimal Control of the Initial Condition in the Problem of Gas Lifting
Journal of Computer and Systems Sciences International, 2023 A partially periodic control problem is considered, where the control parameter enters the initial condition. We study the formalization related to the calculus of variations. The necessary conditions are written out in the form of Euler–Lagrange equations, with the help of which an algorithm for finding the optimal program trajectories is developed ...
Aliev, F. A. +3 more
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Efficacy of the lift-the-lip technique for dental plaque removal in preschool children
Journal of Indian Society of Pedodontics and Preventive Dentistry, 2019 Objective: The objective of this study was to compare the efficacy of two dental brushing techniques in relation to the lift lip method to control oral hygiene.
Jeniffer Curto-Manrique +2 more
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The biomechanical characteristics of the strongman atlas stone lift [PDF]
PeerJ, 2021 Background The atlas stone lift is a popular strongman exercise where athletes are required to pick up a large, spherical, concrete stone and pass it over a bar or place it on to a ledge.
Benjamin Hindle +4 more
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OPTIMIZATION AND RESEARCH OF TIDAL TURBINE BLADES BASED ON GENETIC ALGORITHM
Jixie qiangdu, 2021 Improving the efficiency of tidal turbine is the key research of oceanenergy development. The focus of improving the efficiency of tidal turbine lies in the geometry of the turbine blades.
WANG YongDing, LI NingYe
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Optimal artificial lift methods for small oil field production [PDF]
Podzemni RadoviArtificial lift methods are essential for maintaining productivity of oil wells that are depleted or lack sufficient natural energy for self-sustaining production.
Mirjanić Anastasija +5 more
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Aerodynamic-Aeroacoustic Optimization of a Baseline Wing and Flap Configuration
Applied Sciences, 2022 Optimization design was widely used in the high-lift device design process, and the aeroacoustic reduction characteristic is an important objective of the optimization.
Shengjun Ju +5 more
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Research on the Rapid Aerodynamic Shape Optimization of Canards of Gliding Guided Projectile [PDF]
Hangkong bingqi, 2021 In order to improve the accuracy of calculation, it is often necessary to calculate the aerodynamic parameters of the projectile iteratively through computational fluid dynamics simulation, so the optimization efficiency is low.
Zhao Xuan, Chang Sijiang, Ni Yi
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