Results 31 to 40 of about 190,435 (331)

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

Magnetization dynamics: path-integral formalism for the stochastic Landau-Lifshitz-Gilbert equation [PDF]

, 2014
We construct a path-integral representation of the generating functional for the dissipative dynamics of a classical magnetic moment as described by the stochastic generalization of the Landau-Lifshitz-Gilbert equation proposed by Brown, with the ...
Arenas, Zochil Gonzalez, Aron, Camille, Barci, Daniel G., Cugliandolo, Leticia F., Lozano, Gustavo S.   +4 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

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

New infinite families of Nth-order superintegrable systems separating in Cartesian coordinates [PDF]

Journal of Physics A: Mathematical and Theoretical, 2020
Abstract A study is presented of superintegrable quantum systems in two-dimensional Euclidean space E 2 allowing the separation of variables in Cartesian coordinates. In addition to the Hamiltonian H and the second order integral of motion X, responsible for the separation of variables, they allow a third integral that ...
A M Escobar-Ruiz, R Linares, P Winternitz   +2 more
openaire   +3 more sources

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

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

Students' Numeracy Skills in Learning Cartesian Coordinate System Using PMRI in the Context of Palembang LRT

Jurnal Pendidikan Matematika, 2023
This research aims to describe the numeracy skills of eighth grade students in learning Cartesian coordinate system using the approach of realistic mathematics education in the Indonesian context, or PMRI, by using Palembang Light Rail Transit (LRT ...
Nadiati Amarta, Ratu Ilma Indra Putri, Zulkardi Zulkardi   +2 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