Results 71 to 80 of about 1,047,954 (200)

Analysis and computer implementation of the mathematical model of $180^{^\circ}$ domain structures formation in ferroelectrics

open access: yesDal nevostochnyi Matematicheskii Zhurnal, 2022
Summary: The study is devoted to the theoretical analysis and numerical implementation of the 2D mathematical model of \(180^{^\circ}\) ferroelectric domain structures formation within the framework of the Landau-Ginzburg-Devonshire thermodynamic approach supplemented by the Landau-Khalatnikov equation to express the polarization dynamics.
openaire   +2 more sources

Existence of the mathematical prediction equation and its convergence condition and its simplified derivation

open access: yesResults in Applied Mathematics
The mathematical prediction equation (MPE) offers a mathematical definition for wave-motion field prediction in physical systems. It applies to fluid mechanics and numerical weather forecasting models.
Xuzan Gu, Zhibin Wang
doaj   +1 more source

Mathematical Analysis of a Thermostatted Equation with a Discrete Real Activity Variable

open access: yesMathematics, 2020
This paper deals with the mathematical analysis of a thermostatted kinetic theory equation. Specifically, the assumption on the domain of the activity variable is relaxed allowing for the discrete activity to attain real values.
Carlo Bianca, Marco Menale
doaj   +1 more source

Sparse Automatic Differentiation for Large-Scale Computations Using Abstract Elementary Algebra

open access: yes, 2015
Most numerical solvers and libraries nowadays are implemented to use mathematical models created with language-specific built-in data types (e.g. real in Fortran or double in C) and their respective elementary algebra implementations.
Klus, Stefan, Peles, Slaven
core  

Archimedes' principle for Brownian liquid

open access: yes, 2012
We consider a family of hard core objects moving as independent Brownian motions confined to a vessel by reflection. These are subject to gravitational forces modeled by drifts.
Burdzy, Krzysztof   +2 more
core   +2 more sources

Modeling and Analysis of Power Processing Systems (MAPPS). Volume 1: Technical report [PDF]

open access: yes
Computer aided design and analysis techniques were applied to power processing equipment. Topics covered include: (1) discrete time domain analysis of switching regulators for performance analysis; (2) design optimization of power converters using ...
Carter, R. A.   +5 more
core   +1 more source

POS Tagging and its Applications for Mathematics

open access: yes, 2014
Content analysis of scientific publications is a nontrivial task, but a useful and important one for scientific information services. In the Gutenberg era it was a domain of human experts; in the digital age many machine-based methods, e.g., graph ...
J.C. Platt, T.D. Nguyen, U. Schöneberg
core   +1 more source

Analysis of Evaluative Questions in Eighth Grade Mathematics Textbook according to Bloom's Cognitive Domain Levels

open access: yesDirasat: Educational Sciences, 2022
Objectives: The study aims to analyze evaluative questions included in eighth grade mathematics textbook in Jordan. Methods: The researcher used a descriptive and analytical approach represented in content analysis. Evaluation items were built based on Bloom’s cognitive levels.
openaire   +2 more sources

Wavelets transformation: A new method for signal analysis

open access: yesVojnotehnički Glasnik, 2000
In this paper a new method for signal analysis - wavelets transformation is presented. We consider basic theoretical assumptions and mathematical foundations, signal representation in time-frequency domain, fast algorithms for practical implementation ...
Branislav Todorović , Sandra Erić
doaj   +1 more source

SUSSA ACTS: A computer program for steady and unsteady, subsonic and supersonic aerodynamics for aerospace complex transportation systems [PDF]

open access: yes
The computer program SUSSA ACTS (Steady and Unsteady, Subsonic and Supersonic Aerodynamics for Complex Transportation Systems) are presented in the final version.
Morino, L., Tseng, K.
core   +1 more source

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