Results 41 to 50 of about 500,783 (148)
Tracing the Spiral Structure of the Outer Milky Way with Dense Atomic Hydrogen Gas
We present a new face-on map of dense neutral atomic hydrogen (HI) gas in the outer Galaxy. Our map has been produced from the Leiden/Argentine/Bonn (LAB) HI 21-cm line all-sky survey by finding intensity maxima along every line of sight and then by ...
Balser, Dana S. +6 more
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Student stereotyping of non-native English-speaking teachers is a common focus of research and there is a paucity of studies targeting trilingual students of multicultural backgrounds.
Minmin Yang +2 more
doaj +1 more source
Apollonian Packing of Circles within Ellipses
The purpose of a circle packing procedure is to fill up a predefined, geometrical, closed contour with a maximum finite number of circles. The subject has received considerable attention in pure and applied sciences and has proved to be highly effective ...
Carlo Santini +2 more
doaj +1 more source
Analysis and Definition of the close-to-crop Area in Relation to Robotic Weeding [PDF]
The objective of this paper is to analyse and define the field conditions close to the crop plants of sugar beet (Beta vulgaris L.). The aim is to use this study for the choice and development of new physical weeding methods to target weeds at individual
Griepentrog, Hans W. +1 more
core
The terms Global English and World Englishes reflect two opposite imperial perspectives. The first highlights the success of the British Empire in spreading the language of England to various corners of the world, whereas the second subverts the race ...
Salikoko S. Mufwene
doaj +1 more source
A Novel Planar Fractal Antenna with CPW-Feed for Multiband applications [PDF]
In this paper, a multiband antenna using a novel fractal design is presented. The antenna structure is formed by inscribing a hexagonal slot within a circle.
Joseph, S. +3 more
core +1 more source
Kinematic response of the outer stellar disk to a central bar
We study, using direct orbit integrations, the kinematic response of the outer stellar disk to the presence of a central bar, as in the Milky-Way. We find that the bar's outer Lindblad resonance (OLR) causes significant perturbations of the velocity ...
Dehnen +10 more
core +1 more source
Interaction of two systems with saddle-node bifurcations on invariant circles. I. Foundations and the mutualistic case [PDF]
The saddle-node bifurcation on an invariant circle (SNIC) is one of the codimension-one routes to creation or destruction of a periodic orbit in a continuous-time dynamical system.
Baesens, Claude, MacKay, Robert S.
core +2 more sources
Radial mixing and the transition between the thick and thin Galactic discs
The analysis of the kinematics of solar neighbourhood stars shows that the low and high metallicity tails of the thin disc are populated by objects which orbital properties suggest an origin in the outer and inner galactic disc, respectively.
Arifyanto +35 more
core +2 more sources
Differences in equine spinal kinematics between straight line and circle in trot
Work on curved tracks, e.g. on circles, is commonplace within all forms of horse training. Horse movements in circles are naturally asymmetric, including the load distribution between inner and outer limbs.
A. Byström +6 more
doaj +1 more source

