Results 11 to 20 of about 75,305 (259)

A Novel Camera Calibration Method Based on Polar Coordinate. [PDF]

open access: yesPLoS ONE, 2016
A novel calibration method based on polar coordinate is proposed. The world coordinates are expressed in the form of polar coordinates, which are converted to world coordinates in the calibration process.
Shaoyan Gai, Feipeng Da, Xu Fang
doaj   +1 more source

Strong coordination with polar codes [PDF]

open access: yes2012 50th Annual Allerton Conference on Communication, Control, and Computing (Allerton), 2012
7 pages doublespaced, presented at the 50th Annual Allerton Conference on Communication, Control and Computing ...
Matthieu R. Bloch   +2 more
openaire   +3 more sources

On the pattern of interannual polar vortex–ozone co-variability during northern hemispheric winter [PDF]

open access: yesAtmospheric Chemistry and Physics, 2023
Stratospheric ozone is important for both stratospheric and surface climate. In the lower stratosphere during winter, its variability is governed primarily by transport dynamics induced by wave–mean flow interactions. In this work, we analyze interannual
F. Harzer   +8 more
doaj   +1 more source

Gauge invariance, polar coordinates and inflation

open access: yesJournal of High Energy Physics, 2021
We point out the necessity of resolving the apparent gauge dependence in the quantum corrections of cosmological observables for Higgs-like inflation models.
Ali Akil, Xi Tong
doaj   +1 more source

Kernel Density Estimators for Axisymmetric Particle Beams

open access: yesInstruments, 2023
Bright beams are commonly represented by sampled data in the numerical algorithms used to simulate their properties. However, in these calculations and the analyses of their outputs, the beam’s density is sometimes required and must be calculated from ...
Christopher M. Pierce, Young-Kee Kim
doaj   +1 more source

Polar Coordinates View on KM-Arcs [PDF]

open access: yesGraphs and Combinatorics, 2021
revised ...
Kanat S. Abdukhalikov, Duy Ho
openaire   +4 more sources

Numerical Solution of Heat Equation in Polar Cylindrical Coordinates by the Meshless Method of Lines

open access: yesJournal of Mathematics, 2021
We propose a numerical solution to the heat equation in polar cylindrical coordinates by using the meshless method of lines approach. The space variables are discretized by multiquadric radial basis function, and time integration is performed by using ...
Arshad Hussain   +3 more
doaj   +1 more source

Analytical review of software-algorithmic methods of processing of measuring information about geometrical parameters of objects in images

open access: yesТехнічна інженерія, 2023
The paper considers software-algorithmic methods and computational aspects of operations of transformation of coordinates of points in the plane. These procedures include: finding new rectangular coordinates of a vector when rotating it (or a coordinate ...
Yu.O. , L.O. , V.V. , Yu.M. , O.О.
doaj   +1 more source

Transformation between polar and rectangular coordinates of stiffness and dampness parameters in hydrodynamic journal bearings

open access: yesFriction, 2020
The stiffness and dampness parameters of journal bearings are required in rectangular coordinates for analyzing the stability boundary and threshold speed of oil film bearings.
Zhuxin Tian, Yu Huang
doaj   +1 more source

Non-commutativity in polar coordinates

open access: yesEuropean Physical Journal C: Particles and Fields, 2017
We reconsider the fundamental commutation relations for non-commutative $$\mathbb {R}^{2}$$ R 2 described in polar coordinates with non-commutativity parameter $$\theta $$ θ . Previous analysis found that the natural transition from Cartesian coordinates
James P. Edwards
doaj   +1 more source

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