Results 1 to 10 of about 46,447 (165)

Fully Automatic Sliding Motion Compensated and Simultaneous 4D-CBCT via Bilateral Filtering [PDF]

open access: yesFrontiers in Oncology, 2021
PurposeTo incorporate the bilateral filtering into the Deformable Vector Field (DVF) based 4D-CBCT reconstruction for realizing a fully automatic sliding motion compensated 4D-CBCT.Materials and MethodsInitially, a motion compensated simultaneous ...
Jun Dang   +10 more
doaj   +2 more sources

Fractional-Order Adaptive Integral Hierarchical Sliding Mode Control Method for High-Speed Linear Motion of Spherical Robot

open access: yesIEEE Access, 2020
The development of the spherical robot to meet the requirements of high-speed and high-precision tasks is of great importance. In this study, a fractional-order adaptive integral hierarchical sliding mode controller (F-AIHSMC) is proposed.
Long Ma, Hanxu Sun, Jingzhou Song
doaj   +3 more sources

Experimental research of force wave precession gears with rolling element

open access: yesTrudy Odesskogo Politehničeskogo Universiteta, 2020
The main task of modern mechanical engineering is to improve the quality and reliability of machinery and mechanisms while reducing their overall dimensions and increasing cost-effectiveness.
Михайло Володимирович Маргуліс   +1 more
doaj   +5 more sources

A note on attractivity for the intersection of two discontinuity manifolds [PDF]

open access: yesOpuscula Mathematica, 2020
In piecewise smooth dynamical systems, a co-dimension 2 discontinuity manifold can be attractive either through partial sliding or by spiraling. In this work we prove that both attractivity regimes can be analyzed by means of the moments solution, a ...
Fabio V. Difonzo
doaj   +1 more source

Simple dynamics underlying the survival behaviors of ciliates

open access: yesBiophysics and Physicobiology, 2022
Ciliates are swimming microorganisms in aquatic environments. Habitats where ciliates accumulate include nutrient-rich solid–liquid interfaces such as pond bottom walls and waterweed surfaces. The ciliates stay near the walls to survive.
Takuya Ohmura   +2 more
doaj   +1 more source

Creeping slopes in NW Himalaya and Joshimath slide: constraints from GPS measurements

open access: yesGeomatics, Natural Hazards & Risk, 2023
Slow slope movement is very common in the Himalayan region. In most cases, the topsoil, weathered rock mass, debris of paleo-landslide or of glacial origin, etc. slowly slides until it stabilizes or fails.
V. K. Gahalaut   +8 more
doaj   +1 more source

The motion of a pushed, sliding workpiece [PDF]

open access: yesIEEE Journal on Robotics and Automation, 1988
It occurs frequently in robotic applications that a robot manipulates a workpiece which is free to slide on a work surface. Because the pressure distribution supporting the workpiece on the work surface cannot in general be known, the motion of the workpiece cannot be calculated uniquely. The authors find the locus of centers of rotation of a workpiece
Michael A. Peshkin, Arthur C. Sanderson
openaire   +1 more source

Effect of Characteristics of Ground Motion on Seismically Induced Sliding Surface of Slopes

open access: yesApplied Sciences, 2021
The seismic performance of slopes is typically evaluated with a pseudo-static method using equivalent horizontal load or with Newmark sliding block analysis. In both procedures, the definition of the potential sliding surface is a required input.
Muhammad Irslan Khalid   +4 more
doaj   +1 more source

Stabilization of Switched Time-Delay Linear Systems through a State-Dependent Switching Strategy

open access: yesActuators, 2021
This paper considers the problem of stabilizing switched time-delay linear systems through a state-dependent switching strategy. In contrast to the existing works, we adopt a less restrictive assumption of the system, and show that this assumption is ...
Tan Hou, Yuanlong Li, Zongli Lin
doaj   +1 more source

A numerical model to simulate the transient frictional viscoelastic sliding contact

open access: yesFriction, 2023
Sliding motion has always been one of the major concerns when it comes to the analysis of viscoelastic contact problems. A new model simulating the transient sliding contact of smooth viscoelastic surfaces is developed in this paper.
Dongze Wang   +3 more
doaj   +1 more source

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