Results 1 to 10 of about 9,069,962 (304)

A New Approach to Rotational Weingarten Surfaces [PDF]

open access: yesMathematics, 2022
Weingarten surfaces are those whose principal curvatures satisfy a functional relation, whose set of solutions is called the curvature diagram or the W-diagram of the surface.
Paula Carretero, Ildefonso Castro
doaj   +5 more sources

Effects of magnetic field, binary particle loading and rotational conic surface on phase change process in a PCM filled cylinder

open access: yesCase Studies in Thermal Engineering, 2021
In the present work, coupled effects of forced convection, rotational conic surface and magnetic field on the phase change dynamics are numerically explored by using finite element method for a phase change material (PCM) filled 3D cylindrical reactor ...
Kaouther Ghachem   +5 more
doaj   +2 more sources

Three-Dimensional Surface Topography for the Assessment of Spinal Alignment: A Cross-Sectional Study of Biomechanical Correlates [PDF]

open access: yesDiagnostics
Background/Objectives: Spinal alignment is a key determinant of biomechanical function and postural stability, particularly during periods of growth and development.
Brigitte Osser   +9 more
doaj   +2 more sources

Rotational molding: A review of the models and materials

open access: yeseXPRESS Polymer Letters, 2017
This article surveys recent and not so recent literature in the field of rotational molding. The mechanisms of heat transfer, sintering and bubble removal are evaluated; as are degradation and dimensional stability. The parameters that affect the surface
K. O. Ogila, M. Shao, W. Yang, J. Tan
doaj   +2 more sources

A general method for controlling and resolving rotational orientation of molecules in molecule-surface collisions

open access: yesNature Communications, 2017
The rotational orientation of a molecule plays a fundamental role in molecule-surface collisions, yet is difficult to study. Here, the authors present a general approach for controlling and resolving molecular rotational orientation and apply it to study
Oded Godsi   +9 more
doaj   +2 more sources

Experimental Study on Grinding of Inner Raceway of Tapered Roller Bearing Outer Ring [PDF]

open access: yesMicromachines
Tapered roller bearings are widely employed in mechanical structures such as automotive wheel hub units, transmissions, and machine tool spindles, and they have a direct impact on the performance and stability of the equipment.
Yingqi Hou   +4 more
doaj   +2 more sources

Vectorial Doppler complex spectrum and its application to the rotational detection [PDF]

open access: yesApplied Physics Express, 2023
Based on vectorial polarized fields of light applied to detect the rotational velocity by the rotational Doppler effect, we propose a method to measure the magnitude and direction of the rotational velocity simultaneously for a general rotating surface ...
Shuxian Quan   +3 more
semanticscholar   +1 more source

Topographic Changes, Surface Deformation and Movement Process before, during and after a Rotational Landslide

open access: yesRemote Sensing, 2023
The deformation characteristics and instability patterns of rotational landslides are complicated. Such landslides are large and occur continuously, seriously threatening people’s lives.
Shuyue Ma   +7 more
semanticscholar   +1 more source

Reduced rotational flows enable the translation of surface-rolling microrobots in confined spaces

open access: yesNature Communications, 2022
The effect of geometrical confinement on the locomotion of microrobots is crucial to operating them in real-world applications. Bozuyuk et al. show that the locomotion efficiency of microrollers decreases in confined spaces at high rotation frequencies ...
Ugur Bozuyuk   +5 more
semanticscholar   +1 more source

Rotating surface solitons [PDF]

open access: yesOptics Letters, 2007
We introduce a novel type of surface waves that form at the edge of guiding structures consisting of several concentric rings. Such surface waves rotate steadily upon propagation and, in contrast to nonrotating waves, for high rotation frequencies they do not exhibit power thresholds for their existence. There exists an upper limit for the surface wave
Kartashov, Yaroslav V.   +2 more
openaire   +5 more sources

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