Results 11 to 20 of about 14,504 (190)

A Statistical Shape Modeling Approach for the Derivation of a Data-Driven Geometry-Aware Lumped Arterial Stenosis Model. [PDF]

open access: yesInt J Numer Method Biomed Eng
A data‐driven workflow for constructing a geometry‐aware lumped arterial stenosis model: Statistical shape modeling extracts geometry‐specific shape modes from synthetically generated coronary lesion geometries. Large‐scale 3D CFD simulations over varying Reynolds numbers yield the geometries their viscous (Kv) and inertial (Kt) loss coefficients. Then,
Hilhorst PLJ   +6 more
europepmc   +2 more sources

The proposition of analytical expression HM�(vP/S) in microindentation pile-up deformation mode

open access: yesFracture and Structural Integrity, 2022
In this article, the characteristic curves of microindentation measured on Cu99 were analyzed on the basis of the analytical expression proposed by Habibi et al. (J. Mater. Res, 2021, 36 (15): 3074-3085). The ratio of applied load to square displacement,
D.-E. Semsoum�   +3 more
doaj   +1 more source

Cuspy and fractured black hole shadows in a toy model with axisymmetry

open access: yesEuropean Physical Journal C: Particles and Fields, 2022
Cuspy shadow was first reported for hairy rotating black holes, whose metrics deviate significantly from the Kerr one. The non-smooth edge of the shadow is attributed to a transition between different branches of unstable but bounded orbits, known as the
Wei-Liang Qian   +4 more
doaj   +1 more source

Center-Symmetrical Object Detection Based on Gabor Wavelets

open access: yesIEEE Access, 2020
Symmetry is an important visual characteristic in the image and can be used to identify real-world objects based on their geometrically balanced structures.
Yi Zhang   +3 more
doaj   +1 more source

Preferred sunspot longitudes: non-axisymmetry and differential rotation [PDF]

open access: yesAstronomy & Astrophysics, 2005
As recently found, the distribution of sunspots is non-axisymmetric and spot group formation implies the existence of two persistent active longitudes separated by 180 degrees. Here we quantitatively study the non-axisymmetry of sunspot occurrence. In a dynamic reference frame inferred from the differential rotation law, the raw sunspot data show a ...
Usoskin, I. G.   +2 more
openaire   +2 more sources

PT-axisymmetry for extraordinary field confinement [PDF]

open access: yesSPIE Proceedings, 2017
Optical Parity-Time (PT-) symmetric systems support unusual properties when the symmetric coupling between internal modes is broken. We propose a new class of quasiperiodic PT-axisymmetric systems which lead to a simultaneous extraordinary field enhancement and localization at the symmetry center.
Botey Cumella, Muriel   +3 more
openaire   +3 more sources

Probing Non-Axisymmetry with Proper Motions [PDF]

open access: yesSymposium - International Astronomical Union, 1995
The potential of the Milky Way is almost certainly not axisymmetric: the centre is believed to be dominated by a bar, and beyond the solar radius some non-axisymmetric feature of the potential appears to warp the disk. There are grounds for believing that the outer potential is mildly elliptical. Sub mas yr–1 proper motions of objects that lie near the
openaire   +2 more sources

Black ripples, flowers and dumbbells at large D

open access: yesJournal of High Energy Physics, 2020
We explore the rich phase space of singly spinning (both neutral and charged) black hole solutions in the large D limit. We find several ‘bumpy’ branches which are connected to multiple (concentric) black rings, and black Saturns. Additionally, we obtain
David Licht, Raimon Luna, Ryotaku Suzuki
doaj   +1 more source

Recipe for a Saturn‐Like Dynamo

open access: yesAGU Advances, 2021
The Cassini Grand Finale orbits provided detailed observations of Saturn’s internal magnetic field. Unique characteristics of the observed field, such as its axisymmetry and power spectrum, provide constraints on dynamo processes deep in Saturn’s ...
C. Yan, S. Stanley
doaj   +1 more source

Measuring non-axisymmetry in spiral galaxies [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 1997
We present a method for measuring small deviations from axisymmetry of the potential of a filled gas disk. The method is based on a higher order harmonic expansion of the full velocity field of the disk. This expansion is made by first fitting a tilted-ring model to the velocity field of the gas disk and subsequently expanding the velocity field along ...
Schoenmakers, R.H.M.   +2 more
openaire   +3 more sources

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