Results 51 to 60 of about 182,351 (180)

Nonlinear Instability of kink oscillations due to shear motions

open access: yes, 2008
First results from a high-resolution three-dimensional nonlinear numerical study of the kink oscillation are presented. We show in detail the development of a shear instability in an untwisted line-tied magnetic flux tube.
Arregui   +14 more
core   +1 more source

Discussion of the De Generatione Sonorum, a treatise on sound and phonetics by Robert Grosseteste [PDF]

open access: yes, 2012
Here I am proposing a translation and discussion of the De Generatione Sonorum, one of the short scientific treatises written by Robert Grosseteste. The subject is the sound and the phonetics.
Sparavigna, Amelia Carolina
core  

VIBE: Video Inference for Human Body Pose and Shape Estimation

open access: yes, 2020
Human motion is fundamental to understanding behavior. Despite progress on single-image 3D pose and shape estimation, existing video-based state-of-the-art methods fail to produce accurate and natural motion sequences due to a lack of ground-truth 3D ...
Athanasiou, Nikos   +2 more
core   +1 more source

Multi-step self-guided pathways for shape-changing metamaterials [PDF]

open access: yes, 2018
Multi-step pathways, constituted of a sequence of reconfigurations, are central to a wide variety of natural and man-made systems. Such pathways autonomously execute in self-guided processes such as protein folding and self-assembly, but require external
Alberico Sabbadini   +34 more
core   +2 more sources

Control of long-range correlations in turbulence

open access: yes, 2019
The character of turbulence depends on where it develops. Turbulence near boundaries, for instance, is different than in a free stream. To elucidate the differences between flows, it is instructive to vary the structure of turbulence systematically, but ...
Bewley, Gregory P.   +3 more
core   +1 more source

On the role of tachoclines in solar and stellar dynamos [PDF]

open access: yes, 2015
Rotational shear layers at the boundary between radiative and convective zones, tachoclines, play a key role in the process of magnetic field generation in solar-like stars.
Guerrero, G.   +4 more
core   +2 more sources

A full Eulerian finite difference approach for solving fluid-structure coupling problems

open access: yes, 2010
A new simulation method for solving fluid-structure coupling problems has been developed. All the basic equations are numerically solved on a fixed Cartesian grid using a finite difference scheme. A volume-of-fluid formulation (Hirt and Nichols (1981, J.
Amsden   +96 more
core   +1 more source

Generative Perception of Shape and Material from Differential Motion

open access: yes
Perceiving the shape and material of an object from a single image is inherently ambiguous, especially when lighting is unknown and unconstrained. Despite this, humans can often disentangle shape and material, and when they are uncertain, they often move their head slightly or rotate the object to help resolve the ambiguities. Inspired by this behavior,
Han, Xinran Nicole   +2 more
openaire   +2 more sources

Portable Multi-Layer Capsule-Shaped Triboelectric Generator for Human Motion Energy Harvesting

open access: yesMicromachines
This paper introduces a novel portable multi-layer capsule-shaped triboelectric generator (CP-TEG), aimed at optimizing the performance of triboelectric generator technology in terms of miniaturization, modularity, and efficient energy collection.
Xinglin Yang   +3 more
openaire   +3 more sources

Turbulence and Radio Mini-halos in the Sloshing Cores of Galaxy Clusters

open access: yes, 2012
A number of relaxed, cool-core galaxy clusters exhibit diffuse, steep-spectrum radio sources in their central regions, known as radio mini-halos. It has been proposed that the relativistic electrons responsible for the emission have been reaccelerated by
Ackermann   +37 more
core   +1 more source

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