A Modeling Framework to Investigate the Radial Component of the Pushrim Force in Manual Wheelchair Propulsion [PDF]
MATEC Web of Conferences, 2015 The ratio of tangential to total pushrim force, the so-called Fraction Effective Force (FEF), has been used to evaluate wheelchair propulsion efficiency based on the fact that only the tangential component of the force on the pushrim contributes to ...
Ackermann Marko +2 more
doaj +4 more sources
MHz-Order Surface Acoustic Wave Thruster for Underwater Silent Propulsion
Micromachines, 2020 High frequency (MHz-order) surface acoustic waves (SAW) are able to generate intense fluid flow from the attenuation of acoustic radiation in viscous fluids as acoustic streaming.
Naiqing Zhang, Yue Wen, James Friend
doaj +1 more source
Experimental Study on Propulsion Characteristic of Autonomous Intervention ROV [PDF]
한국해양공학회지, 2019 In autonomous interventions using an underwater vehicle with a manipulator, grasping based on target detection and recognition is one of the core technologies.
Taekyeong Yeu +4 more
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Experimental study on spray atomization and liquid film impingement characteristics of an annular injector [PDF]
AIP AdvancesAs a novel underwater propulsion system, the water-ramjet engine relies on the atomization performance of its injector, which directly affects the combustion efficiency and thrust of the engine.
Liushuo Fu +9 more
doaj +1 more source
Changes in propulsion technique and shoulder complex loading following low-intensity wheelchair practice in novices. [PDF]
PLoS ONE, 2018 BACKGROUND:Up to 80% of wheelchair users are affected by shoulder pain. The Clinical Practice Guidelines for preservation of upper limb function following spinal cord injury suggest that using a proper wheelchair propulsion technique could minimize the ...
Marika T Leving +4 more
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Laser Propulsion Standardization Issues [PDF]
, 2010 It is a relevant issue in the research on laser propulsion that experimental results are treated seriously and that meaningful scientific comparison is possible between groups using different equipment and measurement techniques.
Sinko, John Elihu +10 more
core +1 more source
Swimming Propulsion Forces Are Enhanced by a Small Finger Spread [PDF]
Journal of Applied Biomechanics, 2010 The main aim of this study was to investigate the effect of finger spread on the propulsive force production in swimming using computational fluid dynamics. Computer tomography scans of an Olympic swimmer hand were conducted. This procedure involved three models of the hand with differing finger spreads: fingers closed together (no spread), fingers ...
Marinho, Daniel +8 more
openaire +6 more sources
IEEE Access, 2023 This paper describes the design, experiments, and quantitative force comparison of a Pipe Inspection RObot named PI-RO II using the enhanced linear antagonistic mechanism to amplify the traction.
F. Ito +4 more
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Survey of highly non-Keplerian orbits with low-thrust propulsion [PDF]
, 2011 Celestial mechanics has traditionally been concerned with orbital motion under the action of a conservative gravitational potential. In particular, the inverse square gravitational force due to the potential of a uniform, spherical mass leads to a family
Biggs, James +9 more
core +1 more source
Miniaturization of Implantable Micro-Robot Propulsion Using a Wireless Power Transfer System
Micromachines, 2017 This paper presents an efficient coil design for a mm-sized micro-robot which generates a propulsion force and torque and receives electrical energy using a wireless power transfer system.
Dongwook Kim +4 more
doaj +1 more source