Results 1 to 10 of about 3,350,182 (406)

Rotation- and temperature-dependence of stellar latitudinal differential rotation [PDF]

open access: yes, 2005
More than 600 high resolution spectra of stars with spectral type F and later were obtained in order to search for signatures of differential rotation in line profiles. In 147 stars, the rotation law could be measured, 28 of them are found to be differentially rotating.
Reiners, Ansgar
arxiv   +3 more sources

Analytical theory of forced rotating sheared turbulence. The Parallel case [PDF]

open access: yesPhysical Review E: Statistical, Nonlinear, and Soft Matter Physics 78, 3 (2008) 036319, 2008
Forced turbulence combined with the effect of rotation and shear flow is studied. In a previous paper [Leprovost and Kim, PRE in press (2008)], we considered the case where the shear and the rotation are perpendicular. Here, we consider the complementary case of parallel rotation and shear, elucidating how rotation and flow shear influence the ...
A. A. Townsend   +11 more
arxiv   +8 more sources

Differential Rotation in F Stars [PDF]

open access: yes, 2007
Differential rotation can be detected in single line profiles of stars rotating more rapidly than about $v \sin{i} = 10$ km s$^{-1}$ with the Fourier transform technique. This allows to search for differential rotation in large samples to look for correlations between differential rotation and other stellar parameters.
Barnes   +12 more
arxiv   +3 more sources

ReDet: A Rotation-equivariant Detector for Aerial Object Detection [PDF]

open access: yesComputer Vision and Pattern Recognition, 2021
Recently, object detection in aerial images has gained much attention in computer vision. Different from objects in natural images, aerial objects are often distributed with arbitrary orientation.
Jiaming Han   +3 more
semanticscholar   +1 more source

Real-Time Kinematic Imagery-Based Automated Levelness Assessment System for Land Leveling

open access: yesAgriculture, 2023
Many cropping systems, notably for rice or soybean production, rely largely on arable land levelness. In this study, an automated levelness assessment system (ALAS) for evaluating lowland levelness is proposed.
Senlin Guan   +4 more
doaj   +1 more source

Omnidirectional Continuous Movement Method of Dual-Arm Robot in a Space Station

open access: yesSensors, 2023
The burgeoning complexity of space missions has amplified the research focus on robots that are capable of assisting astronauts in accomplishing tasks within space stations.
Ziqiang Zhang   +7 more
doaj   +1 more source

Association between axial length and toric intraocular lens rotation according to an online toric back-calculator [PDF]

open access: yesInternational Journal of Ophthalmology, 2022
AIM: To assess the relationship between axial length (AL) and intraocular lens (IOL) rotation among eyes receiving a toric IOL and subsequently entered into an online toric back-calculator database.
Jennifer L. Patnaik   +6 more
doaj   +1 more source

On the Continuity of Rotation Representations in Neural Networks [PDF]

open access: yesComputer Vision and Pattern Recognition, 2018
In neural networks, it is often desirable to work with various representations of the same space. For example, 3D rotations can be represented with quaternions or Euler angles.
Yi Zhou   +4 more
semanticscholar   +1 more source

Arbitrary-Oriented Scene Text Detection via Rotation Proposals [PDF]

open access: yesIEEE transactions on multimedia, 2017
This paper introduces a novel rotation-based framework for arbitrary-oriented text detection in natural scene images. We present the Rotation Region Proposal Networks, which are designed to generate inclined proposals with text orientation angle ...
Jianqi Ma   +6 more
semanticscholar   +1 more source

MODULES FOR EXPERIMENTS IN STELLAR ASTROPHYSICS (MESA): PLANETS, OSCILLATIONS, ROTATION, AND MASSIVE STARS [PDF]

open access: yes, 2013
We substantially update the capabilities of the open source software package Modules for Experiments in Stellar Astrophysics (MESA), and its one-dimensional stellar evolution module, MESAstar.
B. Paxton   +10 more
semanticscholar   +1 more source

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