Results 11 to 20 of about 1,005,816 (291)

The impact of mal-angulated femoral rotational osteotomies on mechanical leg axis: a computer simulation model [PDF]

open access: yesBMC Musculoskeletal Disorders, 2020
Background Subtrochanteric or supracondylar femoral rotational osteotomies are established surgical treatments for femoral rotational deformities. Unintended change of the mechanical leg axis is an identified problem.
Lukas Jud   +5 more
doaj   +2 more sources

A Novel Method and System Implementation for Precise Estimation of Single-Axis Rotational Angles

open access: yesSensors
Accurately estimating single-axis rotational angle changes is crucial in many high-tech domains. However, traditional angle measurement techniques are often constrained by sensor limitations and environmental interferences, resulting in significant ...
Qinghua Yang   +3 more
doaj   +2 more sources

Timelike rotational hypersurfaces with timelike axis in Minkowski four-space [PDF]

open access: yes, 2023
We introduce the timelike rotational hypersurfaces x with timelike axis in Minkowski 4-space E41. We obtain the equations for the curvatures of the hypersurface. Moreover, we present a theorem for the rotational hypersurfaces with timelike axis supplying
Erhan GÜLER, Güler, Erhan
core   +1 more source

Gravity-Dependent Modulation of Downbeat Nystagmus: Insights From Velocity-Storage Dysfunction. [PDF]

open access: yesAnn Clin Transl Neurol
ABSTRACT Objective Downbeat nystagmus varies with head position, a phenomenon termed gravity‐dependent modulation. We aimed to clarify its mechanism using a velocity‐storage model. Methods In 10 patients with downbeat nystagmus due to cerebellar disorders, we recorded eye movements at different pitch‐ and roll‐axis head positions.
Park JH   +5 more
europepmc   +2 more sources

Investigating the effect of rotational degree of freedom on a circular cylinder at low reynolds number in cross flow [PDF]

open access: yes, 2011
Numerical simulations of Vortex-Induced Vibrations (VIV) of a circular cylinder in cross flow with a rotational degree of freedom about its axis have been carried out by means of a finite-volume method.
Wissink, J   +5 more
core   +3 more sources

Effect of dynamic stall on the aerodynamics of vertical-axis wind turbines [PDF]

open access: yes, 2011
Accurate simulations of the aerodynamic performance of vertical-axis wind turbines pose a significant challenge for computational fluid dynamics methods.
Scheurich, Frank, Brown, Richard
core   +3 more sources

Systematic errors (Σ) and random errors (σ) in the translational (lateral [x-axis], longitudinal [z-axis], and vertical [y-axis]) and rotational (yaw [y-axis]) directions.

open access: yes, 2022
Systematic errors (Σ) and random errors (σ) in the translational (lateral [x-axis], longitudinal [z-axis], and vertical [y-axis]) and rotational (yaw [y-axis]) directions.
Ji Woon Yea (8781290)   +3 more
core   +1 more source

Rest-to-Rest Slew Maneuver of Three-Axis Rotational Flexible Spacecraft [PDF]

open access: yes, 2008
The article of record as published may be found at http://dx.doi.org/10.3182/20080706-5-KR-1001.02040This paper presents a slew maneuver control design of three-axis rotational flexible spacecraft.
Kim, J.J.   +3 more
core   +2 more sources

Study on a self-propelled cleaning robot driven by a rotational brush

open access: yesNihon Kikai Gakkai ronbunshu, 2014
This report describes a new self-propelled cleaning robot which cleans floor by a wet rotational brush like a floor polisher. The rotational brush does not only clean floor but also transfer itself.
Toshiki TAGAMI   +3 more
doaj   +1 more source

Perceptual strategies of pigeons to detect a rotational centre--a hint for star compass learning? [PDF]

open access: yesPLoS ONE, 2015
Birds can rely on a variety of cues for orientation during migration and homing. Celestial rotation provides the key information for the development of a functioning star and/or sun compass.
Bianca Alert   +4 more
doaj   +1 more source

Home - About - Disclaimer - Privacy