Concept
Rotation (mathematics)
Related publications (121)
Wind Turbine Wakes in Directionally Varying Wind Shears
Fernando Porté Agel, Mahdi Abkar
In the atmospheric boundary layer, the Coriolis force associated with the Earth’s rotation induces a spanwise wind shear in addition to the wall-normal one leading to a continuous change in wind direction with height. The spanwise wind shear in directional ...
2019Fiber Bragg grating-based thermometer for drill bit temperature monitoring
The temperature measurement of a drill bit during an implantology drilling process is proposed by using a fiber Bragg grating fitted inside the drill bit. Due to the rotational nature of the drilling process, a free-space fiber-optic rotary joint is used f ...
2019Optimized up-down asymmetry to drive fast intrinsic rotation in tokamaks
Breaking the up-down symmetry of the tokamak poloidal cross-section can significantly increase the spontaneous rotation due to turbulent momentum transport. In this work, we optimize the shape of flux surfaces with both tilted elongation and tilted triangu ...
2018Bayesian adaptation of chaos representations using variational inference and sampling on geodesics
A novel approach is presented for constructing polynomial chaos representations of scalar quantities of interest (QoI) that extends previously developed methods for adaptation in Homogeneous Chaos spaces. In this work, we develop a Bayesian formulation of ...
ROYAL SOC2018The Mutual Information in Random Linear Estimation Beyond i.i.d. Matrices
Nicolas Macris, Florent Gérard Krzakala, Jean François Emmanuel Barbier
There has been definite progress recently in proving the variational single-letter formula given by the heuristic replica method for various estimation problems. In particular, the replica formula for the mutual information in the case of noisy linear esti ...
IEEE2018Rotation Invariance and Directional Sensitivity: Spherical Harmonics versus Radiomics Features
Michaël Unser, Julien René Pierre Fageot, John Paul Ward, Adrien Raphaël Depeursinge
We define and investigate the Local Rotation Invariance (LRI) and Directional Sensitivity (DS) of radiomics features. Most of the classical features cannot combine the two properties, which are antagonist in simple designs. We propose texture operators bas ...
SPRINGER INTERNATIONAL PUBLISHING AG2018A transmurally heterogeneous orthotropic activation model for ventricular contraction and its numerical validation
Alfio Quarteroni, Simone Rossi, Luca Barbarotta
Models for cardiac mechanics require an activation mechanism properly representing the stress-strain relations in the contracting myocardium. In this paper, we propose a new activation model that accounts for the transmural heterogeneities observed in myoc ...
WILEY2018Fast cross-correlation based wrist vein recognition algorithm with rotation and translation compensation
Sébastien Marcel, André Anjos, Teodors Eglitis
Most of the research on vein biometrics addresses the problems of either palm or finger vein recognition with a considerably smaller emphasis on wrist vein modality. This paper paves the way to a better understanding of capabilities and challenges in the f ...
2018Vibrational Energy Redistribution in a Gas-Surface Encounter: State-to-State Scattering of CH4 from Ni(111)
Rainer Beck, Maarten Eduard van Reijzen, Bo-Jung Chen, Jörn Werdecker
The fate of vibrational energy in the collision of methane (CH4) in its antisymmetric C-H stretch vibration (ν3) with a Ni(111) surface has been studied in a state-to-state scattering experiment. Laser excitation in the incident molecular beam prepared the ...
2018Differential effects of vestibular processing on orienting exogenous and endogenous covert visual attention
Olaf Blanke, Andrea Serino, Mariia Kaliuzhna, Steve Michel Berger
Recent research highlights the overwhelming role of vestibular information for higher order cognition. Central to body perception, vestibular cues provide information about self-location in space, self-motion versus object motion, and modulate the percepti ...
2018