Results 21 to 30 of about 59,880 (209)

Is there a relationship between pain intensity and postural sway in patients with non-specific low back pain? [PDF]

, 2011
Background Increased center of pressure excursions are well documented in patients suffering from non-specific low back pain, whereby the altered postural sway includes both higher mean sway velocities and larger sway area.
Walker Bruce, Ruhe Alexander, Alexander Ruhe, Ruhe, A., Bruce Walker, Walker, B., Fejer, R., Fejer René, René Fejer   +8 more
core   +1 more source

Design and Experimental Research of the Anti-sway Test Bed for Offshore Crane

MATEC Web of Conferences, 2015
Offshore cranes are commonly used in cargo handling, offshore installation and replenishment at sea. However, because of the wave motion of the ship and the flexibility of the rope, the sway of payload is unavoidable and may put relevant operations in ...
Wang Shenghai, Chen Haiquan, Chen Xinyang, Shen Yan   +3 more
doaj   +1 more source

Free vibration analysis of a string with vibration suppressors located at 1/N from both ends of the string (When N is an odd number and gap between string and vibration suppressor is not zero)

Nihon Kikai Gakkai ronbunshu, 2017
In high-rise buildings, the elevator rope may resonate with the building's sway induced by wind forces and/or by long period ground motion. Therefore, suppression of elevator rope vibration is desired.
Takahiro FUJITANI, Hiroyuki KIMURA
doaj   +1 more source

Investigation of influence from inertia of hoisting rope on mobile crane using flexible multibody model

Nihon Kikai Gakkai ronbunshu, 2018
This research studied an influence of the inertia of the hoisting rope on the dynamics of a mobile crane system. Two dynamics models of the mobile crane were formulated with the inertia included rope model and the massless rope model, and their dynamics ...
Kolawach CHALERMPONG, Hiroshi YAMAURA, Kensuke HARA   +2 more
doaj   +1 more source

Motor deficits in schizophrenia quantified by nonlinear analysis of postural sway. [PDF]

, 2012
Motor dysfunction is a consistently reported but understudied aspect of schizophrenia. Postural sway area was examined in individuals with schizophrenia under four conditions with different amounts of visual and proprioceptive feedback: eyes open or ...
Jerillyn S Kent, Amanda R. Bolbecker, Mallory J. Klaunig (146364), Amanda R Bolbecker, Jennifer K Forsyth, S. Lee Hong (146353), S Lee Hong, S. Lee Hong, Jennifer K. Forsyth, Klaunig, Mallory J., William P Hetrick, Amanda R. Bolbecker (146359), Forsyth, Jennifer K., Jennifer K. Forsyth (146371), Bolbecker, Amanda R., O’Donnell, Brian F., Kent, Jerillyn S., William P. Hetrick (146388), Jerillyn S. Kent (146348), Mallory J Klaunig, Hetrick, William P., O'Donnell, Brian F., Brian F O'Donnell, Jerillyn S. Kent, Hong, S. Lee, Brian F. O’Donnell (146381), Brian F. O’Donnell, William P. Hetrick, Mallory J. Klaunig   +28 more
core   +2 more sources

Pain relief is associated with decreasing postural sway in patients with non-specific low back pain [PDF]

, 2012
Background Increased postural sway is well documented in patients suffering from non-specific low back pain, whereby a linear relationship between higher pain intensities and increasing postural sway has been described.
Walker Bruce, Ruhe Alexander, Alexander Ruhe, Ruhe, A., Bruce Walker, Walker, B., Fejer, R., Fejer René, René Fejer, Fejer, René   +9 more
core   +2 more sources

Vibration analysis of elevator rope with vibration suppressors (Identification of flexural rigidity, viscous damping and structural damping)

Nihon Kikai Gakkai ronbunshu, 2021
When an elevator rope for a high-rise building is forcibly excited by the displacement of the building induced by wind force and/or by long-period ground motion, rope displacement becomes large even if the ground acceleration and the building ...
Hiroyuki KIMURA, Hiroto SUZUKI, Masahiro SEKIMOTO   +2 more
doaj   +1 more source

Free vibration analysis of a string with vibration suppressor (When the position of vibration suppressor is opposite to the pulled position)

Mechanical Engineering Journal, 2016
A vibration suppressor is used to change the natural frequency of an elevator rope, and to prevent resonance. The elevator rope is modeled using a string.
Hiroyuki KIMURA
doaj   +1 more source

Semi-Active Control of the Sway Dynamics for Elevator Ropes

CoRR, 2015
In this work we study the problem of rope sway dynamics control for elevator systems. We choose to actuate the system with a semi-active damper mounted on the top of the elevator car. We propose nonlinear controllers based on Lyapunov theory, to actuate the semi-active damper and stabilize the rope sway dynamics.
openaire   +2 more sources

Free vibration analysis of a string with vibration suppressor located at center of the string (When gap between string and vibration suppressor is zero)

Nihon Kikai Gakkai ronbunshu, 2015
When an elevator rope for a high-rise building is forcibly excited by the displacements of the building induced by wind forces and/or by long-period ground motion, rope displacement becomes large even if the ground acceleration and the buildings ...
Hiroyuki KIMURA
doaj   +1 more source