Results 21 to 30 of about 76,104 (300)

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

Polar Coordinates View on KM-Arcs [PDF]

open access: yesGraphs and Combinatorics, 2021
revised ...
Kanat S. Abdukhalikov, Duy Ho
openaire   +3 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

Analisis Kesulitan Mahasiswa dalam Memahami Materi Integral Lipat Dua pada Koordinat Polar Mata Kuliah Kalkulus Lanjut

open access: yesAl-Jabar, 2016
This study aims to determine the difficulties experienced by students in understanding the double integral in polar coordinates advanced calculus courses and the factors that cause these problems. This research is qualitative.
Davi Apriandi, Ika Krisdiana
doaj   +1 more source

Implicit Guidance Equations in Polar Coordinates [PDF]

open access: yesفصلنامه علوم و فناوری فضایی, 2015
In this paper, implicit guidance equations are derived in polar coordinates. Depending on applications, implicit guidance equations in polar coordinates may be preferred over cartesian coordinates.
Seyed Hamid Jalali Naini
doaj  

Integer Polar Coordinates for Compression [PDF]

open access: yes2007 IEEE International Symposium on Information Theory, 2007
This paper introduces a family of integer-to-integer approximations to the Cartesian-to-polar coordinate transformation and analyzes its application to lossy compression. A high-rate analysis is provided for an encoder that first uniformly scalar quantizes, then transforms to "integer polar coordinates," and finally separately entropy codes angle and ...
Demba E. Ba, Vivek K. Goyal
openaire   +1 more source

Gn blending multiple surfaces in polar coordinates [PDF]

open access: yes, 2010
International audienceThis paper proposes a method of Gn blending multiple parametric surfaces in polar coordinates. It models the geometric continuity conditions of parametric surfaces in polar coordinates and presents a mechanism of converting a ...
Sun, Jia-Guang   +3 more
core   +1 more source

Equation of a line in polar coordinates.

open access: yes, 2021
Equation of a line in polar coordinates.
Andrew Resnick (340899)   +1 more
core   +1 more source

Analysis of pillow effect for isosceles triangular membranes of mesh reflector antenna by the weak form quadrature element method

open access: yesAIP Advances, 2022
The pillow effect is a key weakening factor in the surface accuracy of mesh antennas. Previous studies, however, have significant limitations in such antennas because they have been largely based on specific assumptions, which have failed to investigate ...
Pengfei Huang   +3 more
doaj   +1 more source

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