Results 11 to 20 of about 1,160,382 (294)

Enhanced Power Extraction via Hybrid Pitching Motion in an Oscillating Wing Energy Harvester with Leading Flap

open access: yesEnergies
This study applied a hybrid pitching motion for an oscillating wing with a leading flap aimed at enhancing energy extraction efficiency. In the first half of the cycle, the hybrid pitching motion begins with a non-sinusoidal pitching motion for 0.0 ≤ t/T
Suleiman Saleh, Chang-Hyun Sohn
doaj   +2 more sources

Glenohumeral Rotational Motion and Strength and Baseball Pitching Biomechanics [PDF]

open access: yesJournal of Athletic Training, 2012
Context: Addressing loss of shoulder range of motion and rotator cuff weakness in injury-prevention programs might be an effective strategy for preventing throwing arm injuries in baseball pitchers. However, the influence of these clinical measures on pitching biomechanics is unclear.
Wendy J, Hurd, Kenton R, Kaufman
openaire   +3 more sources

Upper Extremity Range of Motion and Pitching Profile of Baseball Pitchers in Japan

open access: yesOrthopaedic Journal of Sports Medicine, 2017
Background: Shoulder range of motion and pitch count in baseball pitchers have been linked to pitching-related upper extremity injury. Purpose: To investigate upper extremity range of motion and pitching profiles in baseball pitchers in Japan as well as ...
Ted Sueyoshi ATC, PES   +3 more
doaj   +2 more sources

Control of rotorcraft retreating blade stall using air-jet vortex generators [PDF]

open access: yes, 2006
A series of low-speed wind tunnel tests were carried out on an oscillating airfoil fitted with two rows of air-jet vortex generators (AJVGs). The airfoil used had an RAE 9645 section and the two spanwise arrays of AJVGs were located at x/c=0.12 and 0.62.
Kokkalis, A.   +5 more
core   +9 more sources

Design of a Predictive RBF Compensation Fuzzy PID Controller for 3D Laser Scanning System

open access: yesApplied Sciences, 2020
A new proportional integral derivative (PID) control method is proposed for the 3D laser scanning system converted from 2D Lidar with a pitching motion device.
Minghui Zhao   +3 more
doaj   +1 more source

Changing pitch induced visual motion illusion [PDF]

open access: yesCurrent Biology, 2004
AbstractWe often associate moving objects and changing pitch, e.g., falling stones with descending, and launching rockets with ascending pitch, even when these sounds do not happen in the real-world. The reason for this is unknown. Here we report an illusion in which auditory stimuli with no apparent spatial and motion information [1–3] alter human ...
Maeda, F., Kanai, R., Shimojo, S.
openaire   +3 more sources

Effect of pitching motion on production in a OFWT

open access: yesJournal of Ocean Engineering and Marine Energy, 2022
AbstractThe performance of offshore floating wind turbines (OFWTs) is affected by the movement along the 6 Degrees of Freedom (DOFs), which is caused by the combined influence of wind and waves. Particularly, interesting is the pitching motion, which can lead to significant changes in aerodynamic and net generated power.
Cottura, Lorenzo   +5 more
openaire   +2 more sources

Comparison of OnBaseU Tests with Biomechanical Motion Analysis in Youth Baseball Pitchers

open access: yesInternational Journal of Sports Physical Therapy, 2021
# Background The OnBaseU screen was developed to evaluate a baseball pitcher’s ability to perform movement patterns key to pitching. However, due to lack of validation, it is unclear what application is ideal for this screen.
Tessa Hulburt   +2 more
doaj   +1 more source

Genetic Algorithm Based Optimization of Wing Rotation in Hover

open access: yesFluids, 2018
The pitching kinematics of an experimental hovering flapping wing setup are optimized by means of a genetic algorithm. The pitching kinematics of the setup are parameterized with seven degrees of freedom to allow for complex non-linear and non-harmonic ...
Alexander Gehrke   +2 more
doaj   +1 more source

Dynamic Co-Simulation Analysis and Control of an IEA 15 MW Offshore Floating Semi-Submersible Wind Turbine under Taiwan Offshore-Wind-Farm Conditions of Wind and Wave

open access: yesJournal of Marine Science and Engineering, 2023
This study aims to develop dynamic co-simulation and control for analyzing the IEA 15 MW semi-submersible floating wind turbine under Taiwan offshore-wind-farm conditions of wind and wave.
Cherng-Jer Chueh   +4 more
doaj   +1 more source

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