Results 31 to 40 of about 8,361,162 (295)

EVALUATION OF THE PERFORMANCE OF THE PROPULSION LEDOREZNOY MACHINES

EurasianUnionScientists, 2021
Purpose: the aim of the analysis justify the selection of the type of propulsion ledoreznoy the machines with a specific working body. Design / methodology / approach: we present the averaged values of thrust for various types of working bodies LRM (disk, bar, bolt cutters).
A. Malygin, I. Dunaev
openaire   +2 more sources

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

PLoS 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, Fabio Yuzo Nakamura, Valmor Tricoli, Ronaldo Kobal, Cesar Cavinato Cal Abad, Katia Kitamura, Carlos Ugrinowitsch, Saulo Gil, Lucas Adriano Pereira, Juan José González-Badillo   +9 more
doaj   +1 more source

Influence of wing kinematics on aerodynamic performance in hovering insect flight [PDF]

, 2007
The influence of different wing kinematic models on the aerodynamic performance of a hovering insect is investigated by means of two-dimensional time-dependent Navier–Stokes simulations.
Bijl, H., Oudheusden, B.W., van, Van Oudheusden, B.W., Bos, F.M. (author), Lentink, D. (author), Van Oudheusden, B.W. (author), Bijl, H. (author), Bos, F.M., Lentink, D.   +8 more
core   +2 more sources

Two-dimensional numerical simulation of NACA 0012 flapping foil hydrodynamics

Zhongguo 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, TIAN Xinliang, LI Xin, SONG Chunhui   +3 more
doaj   +1 more source

Performance of Very Small Robotic Fish Equipped with CMOS Camera

Robotics, 2015
Underwater robots are often used to investigate marine animals. Ideally, such robots should be in the shape of fish so that they can easily go unnoticed by aquatic animals.
Yang Zhao, Masaaki Fukuhara, Takahiro Usami, Yogo Takada   +3 more
doaj   +1 more source

Propulsive and mechanical design of a CubeSat mock-up for low-gravity testing [PDF]

, 2023
openIn the last few years, smaller companies and research laboratories are focusing on satellite solutions with reduced dimension, production time and costs to conduct scientific experiments and technological demonstrations in orbit.
DEGLI AGLI, GIULIANO
core  

Introduction: Plant Performance [PDF]

, 2021
Plants perform their own interests and purposes. Plants perform in ways that afford and invite specific human experiences. Plants also perform complex biopolitical roles.
Sandilands, Catriona, Gibson, Prudence ; https://orcid.org/, Gibson, Prudence   +2 more
core   +1 more source

More push from your push-off: Joint-level modifications to modulate propulsive forces in old age. [PDF]

PLoS ONE, 2018
INTRODUCTION:Compared to young adults, older adults walk with smaller propulsive forces and a redistribution to more proximal leg muscles for power generation during push-off.
Michael G Browne, Jason R Franz
doaj   +1 more source

The Role of Unsteady Hydrodynamics in the Propulsive Performance of a Self-Propelled Bioinspired Vehicle [PDF]

, 2010
Aquatic animals differ from typical engineering systems in their method of locomotion. In general, aquatic animals propel using unsteady dynamics producing vortex rings.
Ruiz, Lydia Ann
core   +1 more source

Three-Dimensional Numerical Study of Hydrodynamic Interactions between Pectoral Fins and the Body of Aquatic Organisms

Biomimetics
Fish swimming has attracted attention as a locomotion system with excellent propulsive efficiency. They swim by moving their body, fins, and other organs simultaneously, which developed during evolution.
Kotaro Morifusa, Tomohiro Fukui
doaj   +1 more source