Results 21 to 30 of about 32,761 (288)

Determining the Optimum Power Load in Jump Squat Using the Mean Propulsive Velocity. [PDF]

open access: yesPLoS ONE, 2015
The jump squat is one of the exercises most frequently used to improve lower body power production, which influences sports performance. However, the traditional determination of the specific workload at which power production is maximized (i.e., optimum
Irineu Loturco   +9 more
doaj   +1 more source

A Computational Fluid Dynamics Investigation of a Flapping Hydrofoil as a Thruster

open access: yesBiomimetics, 2023
The paper features a computational fluid dynamics study of a flapping NACA0015 hydrofoil moving with a combination of sinusoidal heaving and pitching. Several kinematic configurations are explored, varying sequentially pitch and heave amplitude, Strouhal
Luca Alberti   +3 more
doaj   +1 more source

Predicting the NACA0012-IK30 Airfoil Propulsive Capabilities with a Panel Method

open access: yesEngineering Proceedings, 2023
Unsteady airfoils play a pivotal role in comprehending diverse aerospace applications, being one of those flapping propulsions. The present paper studies this topic by bringing back an old unsteady panel method to juxtapose its results against CFD data ...
Emanuel A. R. Camacho   +2 more
doaj   +1 more source

Efficiency of Fish Propulsion [PDF]

open access: yes, 2014
It is shown that the system efficiency of a self-propelled flexible body is ill-defined unless one considers the concept of quasi-propulsive efficiency, defined as the ratio of the power needed to tow a body in rigid-straight condition over the power it ...
Maertens, A. P.   +2 more
core   +1 more source

Optimal Design and Dynamic Analysis of Hydrofoil Mechanism of Wave Glider

open access: yesJournal of Marine Science and Engineering, 2022
A wave glider can convert vertical wave motion into its forward propulsion. There are many factors affecting the propulsion performance of a wave glider.
Hongqiang Sang   +5 more
doaj   +1 more source

A new type of biomimetic fish with oscillatory propulsion method

open access: yesMATEC Web of Conferences, 2017
The traditional multi joint mechanical serial parallel structure biomimetic fish has lower propulsive efficiency, more energy transmission loss, more complicated mechanical design and control algorithms because of more mechanical joints.
Lei Zhang   +3 more
doaj   +1 more source

Medusan Morphospace: Phylogenetic Constraints, Biomechanical Solutions, and Ecological Consequences [PDF]

open access: yes, 2008
Medusae were the earliest animals to evolve muscle-powered swimming in the seas. Although medusae have achieved diverse and prominent ecological roles throughout the world\u27s oceans, we argue that the primitive organization of cnidarian muscle tissue ...
Ahlborn   +114 more
core   +2 more sources

A Biomimetic Flexible Fishtail Embedded With Shape Memory Alloy Wires

open access: yesIEEE Access, 2019
In this paper, a biomimetic flexible fishtail actuated by shape memory alloy (SMA) wires is presented. The detailed structure of the fishtail propeller is designed to mimic the muscle and bone structure of a Carassius auratus.
Jian Li   +5 more
doaj   +1 more source

A biomechanical analysis of the farmers walk, and comparison with the deadlift and unloaded walk [PDF]

open access: yes, 2014
This study compared the biomechanical characteristics of the farmers walk, deadlift and unloaded walk. Six experienced male strongman athletes performed farmers' walks and deadlifts at 70% of their 1RM deadlift.
Brown, Scott   +3 more
core   +1 more source

Two-dimensional numerical simulation of NACA 0012 flapping foil hydrodynamics

open access: yesZhongguo Jianchuan Yanjiu, 2018
[Objectives] In order to study the impact of the hydrodynamic performance of foil in the design of a wave glider,[Methods] on account of the characteristics of the oscillating foil when the wave glider is heaving, and based on the Dynamic Fluid Body ...
LV Yuanbo   +3 more
doaj   +1 more source

Home - About - Disclaimer - Privacy