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A New Approach to Rotational Weingarten Surfaces [PDF]
Mathematics, 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
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Rotational energy surfaces of molecules exhibiting internal rotation [PDF]
Journal of Chemical Physics, 1994 Rotational energy surfaces [W. G. Harter and C. W. Patterson, J. Chem. Phys. 80, 4241 (1984)] for a molecule with internal rotation are constructed. The study is limited to torsional states at or below the top of the barrier to internal rotation, where the extra (torsional) degree of freedom can be eliminated by expanding eigenvalues of the torsion–K ...
Hougen Jon T
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Annali Di Matematica Pura Ed ApplicataTerm "free boundary" in Section 4 changed for "meeting the boundary orthogonally". Final version to appear in Ann. Mat.
Iury Domingos, Feliciano Vitorio
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Quasi-minimal rotational surfaces in pseudo-Euclidean four-dimensional space
Open Mathematics, 2014 Ganchev Georgi, Milousheva Velichka
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On Some Weingarten Surfaces in the Special Linear Group SL(2,
Mathematics, 2023 We classify Weingarten conoids in the real special linear group SL(2,R). In particular, there is no linear Weingarten nontrivial conoids in SL(2,R).
Marian Ioan Munteanu
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Rotating surface solitons [PDF]
Optics 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
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Polygons on a Rotating Fluid Surface [PDF]
Physical Review Letters, 2006 We report a novel and spectacular instability of a fluid surface in a rotating system. In a flow driven by rotating the bottom plate of a partially filled, stationary cylindrical container, the shape of the free surface can spontaneously break the axial symmetry and assume the form of a polygon rotating rigidly with a speed different from that of the ...
Jansson, Thomas +4 more
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Scientific Reports, 2023 Mechanical testing by sporting governing bodies ensures artificial turf surfaces conform with performance standards. Rotational traction is measured using two equivalent devices: a rotational traction tester (RTT) and a lightweight rotational traction ...
Harry McGowan +4 more
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A study of the rapid rotator ζ Aql: differential surface rotation?
Monthly Notices of the Royal Astronomical Society, 2023 ABSTRACT We report new, extremely precise photopolarimetry of the rapidly-rotating A0 main-sequence star ζ Aql, covering the wavelength range ∼400–900 nm, which reveals a rotationally-induced signal. We model the polarimetry, together with the flux distribution and line profiles, in the framework of Roche geometry with ω-model gravity ...
Ian D Howarth +3 more
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Moiré-Pattern Evolution Couples Rotational and Translational Friction at Crystalline Interfaces
Physical Review X, 2022 The sliding motion of objects is typically governed by their friction with the underlying surface. Compared to translational friction, however, rotational friction has received much less attention.
Xin Cao +6 more
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