Results 21 to 30 of about 195,620 (294)

A Novel Design of Permanent Magnet Linear Synchronous Motor with Reduced End Effect [PDF]

Journal of Electromagnetic Engineering and Science, 2023
In response to the end effect of the permanent magnet linear synchronous motor, this paper proposes an improved modular motor structure. To compute its electromagnetic characteristics, a subdomain model that converts the Cartesian coordinate system into ...
Qingle Wu, Liqun Wang, Guolai Yang, Enling Tang, Lei Li, Ahmed Al-Zahrani   +5 more
doaj   +1 more source

Symmetry without Symmetry: Numerical Simulation of Axisymmetric Systems using Cartesian Grids [PDF]

, 1999
We present a new technique for the numerical simulation of axisymmetric systems. This technique avoids the coordinate singularities which often arise when cylindrical or polar-spherical coordinate finite difference grids are used, particularly in ...
Alcubierre M., Anninos P., Anninos P., Anninos P., Arnowitt R., Baumgarte T. W., BERND BRÜGMANN, Bernstein D., Bernstein D., Bona C., Bona C., Bonazzola S., Brandt S., Brandt S., Brandt S., Brügmann B., Camarda K., Camarda K., Choptuik M., DANIEL HOLZ, EDWARD SEIDEL, Eppley K., Evans C., JONATHAN THORNBURG, MIGUEL ALCUBIERRE, RYOJI TAKAHASHI, Seidel E., Shibata M., STEVEN BRANDT, York J., York J. W.   +30 more
core   +2 more sources

A Method of Calculating Principal Stress Trajectories in Powder and Porous Materials Obeying a Piece-wise Linear Yield Criterion

MATEC Web of Conferences, 2018
The present paper deals with the system of equations comprising the pyramid yield criterion together with the stress equilibrium equations under plane strain conditions.
Alexandrov Sergei, Lyamina Elena, Date Prashant   +2 more
doaj   +1 more source

Three-dimensional magnetotelluric modeling in the spherical and Cartesian coordinate systems: A comparative study

Earth and Planetary Physics, 2023
With the increase in the coverage area of magnetotelluric data, three-dimensional magnetotelluric modeling in spherical coordinates and its differences with respect to traditional Cartesian modeling have gradually attracted attention. To fully understand
Qi Han, XiangYun Hu
doaj   +1 more source

Using of Parallel Coordinates in Finding Minimum Distance in Time-Space

Communications, 2019
Airspace domain may be represented by a time-space consisting of a three-dimensional Cartesian coordinate system and time as the fourth dimension. A coordinate system provides a scheme for locating points given its coordinates and vice versa.
Olga Blazekova, Maria Vojtekova
doaj   +1 more source

Robotic Arm Position Computing Method in the 2D and 3D Spaces

Actuators, 2023
This paper presents a method on how to compute the position of a robotic arm in the 2D and 3D spaces. This method is slightly different from the well-known methods, such as forward or inverse kinematics.
Roland Szabo, Radu-Stefan Ricman
doaj   +1 more source

Optimizing musical chord inversions using the cartesian coordinate system

CoRR, 2022
9 pages, 5 ...
openaire   +2 more sources

Simplified method for analytically determining the external magnetostatic field of uncertain extended technical objects based on near-field measurements

Electrical engineering & Electromechanics
Introduction. An important scientific and technical problem of magnetism of uncertain extended energy-saturated objects - such as naval vessels and submarines is implementation of strict requirements for magnetic silence based on mathematical modeling of
B. I. Kuznetsov, T. B. Nikitina, I. V. Bovdui, K. V. Chunikhin, V. V. Kolomiets, I. V. Nefodova   +5 more
doaj   +1 more source

Transformation procedures in 3D terrestrial coordinate systems [PDF]

Acta Montanistica Slovaca, 2001
Transformation procedures belong to the main tasks of surveyor working in a field of geodesy, for example in satellite geodesy or astronomical geodesy.
Sedlák Vladimír
doaj  

Influence of the Mesh Topology on the Accuracy of Modelling Turbulent Natural and Excited Round Jets at Different Initial Turbulence Intensities

Applied Sciences, 2022
The paper is aimed at an assessment of the importance of the coordinate system (Cartesian vs. cylindrical) assumed for simulations of free-round jets.
Karol Wawrzak, Artur Tyliszczak
doaj   +1 more source