Results 261 to 270 of about 21,441 (307)

Propulsive force of a magnetic, MRI - based swimmer

2015 IEEE International Conference on Robotics and Automation (ICRA), 2015
Capsule endoscopy is becoming an important tool for diagnosis in the digestive system. In certain parts of the gastrointestinal tract, such as the stomach, the capsule should be self-propelled. This study examines the swimming mechanism for a miniature gastric pill endoscope.
Avi Friedman, Alex Liberzon, Gabor Kosa
openaire   +1 more source

The push force pattern in manual wheelchair propulsion as a balance between cost and effect [PDF]

Journal of Biomechanics, 2003
We investigate the hypothesis that the direction of the propulsion force in manual wheelchair propulsion can be interpreted as a result of the balance between the mechanical task requirements and the driver's biomechanical possibilities.
H E J Veeger, Lucas H V Van Der Woude
exaly   +2 more sources

The oesophageal propulsive force

2022
This thesis was scanned from the print manuscript for digital preservation and is copyright the author. Researchers can access this thesis by asking their local university, institution or public library to make a request on their behalf. Monash staff and postgraduate students can use the link in the References field.
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Propulsive Force Asymmetry during Tethered-Swimming

International Journal of Sports Medicine, 2013
This study aimed to determine whether: i) tethe-red-swimming can be used to identify the asymmetry during front crawl swimming style; ii) swimmers that perform unilateral breathing present greater asymmetry in comparison to others that use bilateral breathing; iii) swimmers of best performance present smaller asymmetry than their counterparts; iv ...
Dos Santos, K. B., Pereira, G., Papoti, M., Bento, P. C B, Rodacki, A.   +4 more
openaire   +3 more sources

Prediction of applied forces in handrim wheelchair propulsion

Journal of Biomechanics, 2011
Researchers of wheelchair propulsion have usually suggested that a wheelchair can be properly designed using anthropometrics to reduce high mechanical load and thus reduce pain and damage to joints. A model based on physiological features and biomechanical principles can be used to determine anthropometric relationships for wheelchair fitting.
Chien-Ju, Lin, Po-Chou, Lin, Lan-Yuen, Guo, Fong-Chin, Su   +3 more
openaire   +2 more sources

Controlling Propulsive Forces in Gait Initiation in Transfemoral Amputees

Journal of Biomechanical Engineering, 2008
During prosthetic gait initiation, transfemoral (TF) amputees control the spatial and temporal parameters that modulate the propulsive forces, the positions of the center of pressure (CoP), and the center of mass (CoM). Whether their sound leg or the prosthetic leg is leading, the TF amputees reach the same end velocity.
van Keeken, Helco G., Vrieling, Aline H., Hof, At L., Halbertsma, Jan P. K., Schoppen, Tanneke, Postema, Klaas, Otten, Bert   +6 more
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Forces on oscillating foils for propulsion and maneuvering

Journal of Fluids and Structures, 2003
Abstract Experiments were performed on an oscillating foil to assess its performance in producing large forces for propulsion and effective maneuvering. First, experiments on a harmonically heaving and pitching foil were performed to determine its propulsive efficiency under conditions of significant thrust production, as function of the principal ...
D.A. Read, F.S. Hover, M.S. Triantafyllou   +2 more
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Air Force Propulsion Maintenance Concepts

SAE Technical Paper Series, 1973
<div class="htmlview paragraph">The Air Force and the airlines have generally followed different aircraft engine maintenance concepts. This paper identifies some of the engine maintenance practices the Air Force has used in the past and how these practices are being improved to obtain engine on-condition maintenance.
A. Bruce Richter, Leo Matkins
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Force scaling and efficiency of elongated median fin propulsion

Bioinspiration & Biomimetics, 2022
Abstract Several fishes swim by undulating a thin and elongated median fin while the body is mostly kept straight, allowing them to perform forward and directional maneuvers. We used a robotic vessel with similar fin propulsion to determine the thrust scaling and efficiency.
Mohammad I Uddin, Gonzalo A Garcia, Oscar M Curet   +2 more
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Creation of Propulsive Force (Locomotion)

1977
Forward movement of any animal in any medium can be effected by two methods: first, by attachment to some other moving object, and second, by creation of a propulsive force of its own. The first method is very rare among nektonic animals and is never found without the second (Echeneidae, etc.).
openaire   +1 more source