Results 21 to 30 of about 1,348,419 (291)

Spectral roughness of glaciated bedrock geomorphic surfaces: Implications for glacier sliding [PDF]

open access: yes, 2000
A microroughness meter (MRM) was used to measure the high-frequency roughness of a number of geomorphic surfaces in the forefield of Glacier de Tsanfleuron, Switzerland.
Martin J. Siegert   +5 more
core   +1 more source

Switching PD-based sliding mode control for hovering of a tilting-thruster underwater robot. [PDF]

open access: yesPLoS ONE, 2018
This paper presents a switching PD-based sliding mode control (PD-SMC) method for the 6-degree-of-freedom (DOF) hovering motion of the underwater robot with tilting thrusters.
Sangrok Jin   +4 more
doaj   +1 more source

On transient sliding motion [PDF]

open access: yesGeophysical Journal International, 1978
Summary. Two kinds of transient sliding motion under a case of idealized dry friction are studied. One concerns uni-directional slip at constant propagation velocity along a strip of constant length in the propagation direction. The other regards extensional slip along a strip expanding symmetrically with constant velocity. The former kind involves one
openaire   +2 more sources

Statistical Motion Mask and Sliding Registration [PDF]

open access: yes, 2018
Accurate registration of images depicting respiratory motion, e.g. 4DCT or 4DMR, can be challenging due to sliding motion that occurs between the chest wall and organs within the pleural sac (lungs, mediastinum, liver). In this paper we propose a methodology that (1) segments one of the images to be registered (the source or floating/moving image) into
Björn Eiben   +5 more
openaire   +1 more source

Arnol′d tongues arising from a grazing-sliding bifurcation [PDF]

open access: yes, 2009
The Neımark–Sacker bifurcation, or Hopf bifurcation for maps, is a well-known bifurcation for smooth dynamical systems. At this bifurcation a periodic orbit loses stability, and, except at certain “strong” resonances, an invariant torus is born.
Osinga, HM   +3 more
core   +1 more source

Stick-Slip Behaviour of a Viscoelastic Flat Sliding along a Rigid Indenter

open access: yesTribology Online, 2016
The sliding contact of soft material surface due to a rigid indenter is different from metal and some other polymers. A stick-slip motion is more frequently obtained than a smooth motion. By modeling the soft material as low damping viscoelastic material,
Budi Setiyana   +3 more
doaj   +1 more source

An Adaptive Sliding Mode Motion Control Method of Remote Operated Vehicle

open access: yesIEEE Access, 2021
Aiming at the problems of unstable motion and low tracking accuracy caused by complex external disturbance during the movement of the remote operated vehicle(ROV), the adaptive control method and sliding mode control method are combined to propose a ROV ...
Zongsheng Wang   +3 more
doaj   +1 more source

Swing control for a three-link brachiation robot based on sliding-mode control on irregularly distributed bars [PDF]

open access: yesMechanical Sciences, 2021
The bionic-gibbon robot is a popular bionic robot. The bionic-gibbon robot can imitate a gibbon in completing brachiation motion between branches. With nonlinear and underactuated properties, the robot has important research value.
Z. Lu, G. Liu, H. Zhao, R. Wang, C. Liu
doaj   +1 more source

Towards improving the Statscan X-ray image quality through sliding mode control of the C-arm [PDF]

open access: yes, 2012
Includes abstract.Includes bibliographical references.This dissertation investigates methods for improving the image quality of a digital radiography system. The Lodox Statscan™ X-ray system provides a full-body scanned image for initial diagnosis.
Esmail, Mohammed
core   +1 more source

INFLUENCE OF TREAD GROOVE WIDTH OF RUBBER ON FRICTION COEFFICIENT [PDF]

open access: yesJournal of the Egyptian Society of Tribology, 2014
The present work studies the influence of rubber tread width and direction of motion on the friction coefficient displayed by the sliding of rubber against ceramic flooring.
A. T. Hasouna
doaj   +1 more source

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