Results 61 to 70 of about 3,811 (131)

Modeling of semiconductor heterostructures for energy converters and sensors

Вестник Самарского университета: Естественнонаучная серия
A set of modeling programs for constructing a sequence of energy zones of heterojunctions is presented for analyzing the distribution of charge carriers in the heterostructure and internal characteristics, for describing the processes of charge transfer ...
M. V. Dolgopolov, M. V. Elisov, S. A. Radzhapov, I. R. Rakhmankulov, A. S. Chipura   +4 more
doaj   +1 more source

Steepest Descent Method in the Wolfram Language and Mathematica System

, 2019
The gradient method, known also as the steepest descent method, includes related algorithms with the same computing scheme based on a gradient concept. The illustrious French mathematician Augustin-Louis Cauchy proposed the method in 1847, much more before the appearing of modern computers.
Ungureanu, V.A., Ungureanu, V.
openaire   +1 more source

Probabilistic Identification of Parameters in Dynamic Fracture Propagation

International Journal for Numerical Methods in Engineering, Volume 127, Issue 4, 28 February 2026.
ABSTRACT In this paper, we propose a novel multiphase approach for identifying input parameters in dynamic fracture propagation. Often, such parameters are partially known and uncertain with incomplete input data, resulting in challenges in predicting a reliable dynamic failure response.
Andjelka Stanić, Mijo Nikolić, Hermann G. Matthies, Noémi Friedman   +3 more
wiley   +1 more source

Investigating wave solutions in coupled nonlinear Schrödinger equation: insights into bifurcation, chaos, and sensitivity

Discover Applied Sciences
In this research, a systematic approach is employed to derive novel wave solutions for the coupled nonlinear Schrödinger equation. The transformation of the coupled partial differential equation into ordinary differential equation is achieved by ...
Adil Jhangeer, Abdallah M. Talafha, Ariana Abdul Rahimzai, Lubomír Říha   +3 more
doaj   +1 more source

EXPLORING THE HUMAN CIRCULATORY SYSTEM THROUGH SYSTEM DYNAMICS: A MODEL-BASED APPROACH

Journal of Engineering Science (Chişinău)
System dynamics is a robust methodology for understanding the behavior of complex systems over time. By employing feedback loops, stocks, flows, and time delays, this approach provides a comprehensive framework for simulating and ...
IAPĂSCURTĂ, Victor
doaj   +1 more source

Lie group analysis, solitons, self-adjointness and conservation laws of the nonlinear elastic structural element equation

Journal of Taibah University for Science
This study is based on the Lie group method for the nonlinear elastic structural element equation (ESE Equation). We obtain a three-dimensional Lie algebra. By utilizing this Lie algebra a four-dimensional optimal system is constructed. The governing ESE
Akhtar Hussain, Muhammad Usman, Fiazuddin Zaman   +2 more
doaj   +1 more source

Some New Soliton Solutions of Time Fractional Resonant Davey–Stewartson Equations

Computational and Mathematical Methods
In this study, the Bernoulli subequation method (BS-EM) is applied to investigate the traveling wave solutions of the (2+1)-dimensional resonant Davey–Stewartson system.
Esin İlhan, Muhammed Yiğider, Ercan Çelik, Hasan Bulut   +3 more
doaj   +1 more source

Triple Layer RGB Image Encryption Algorithm Utilizing Three Hyperchaotic Systems and Its FPGA Implementation

IEEE Access
Image encryption is essential for protecting sensitive visual data during transmission and storage. This article introduces a novel image encryption technique that utilizes three hyperchaotic systems: a memristor system, a hyperchaotic 7D system, and an ...
Wassim Alexan, Noor Elabyad, Maya Khaled, Remas Osama, Dina El-Damak, Mohamed A. Abd El Ghany, Yousef Korayem, Eyad Mamdouh, Mohamed Gabr   +8 more
doaj   +1 more source

IMPROVE OF UNCERTAIN MICROSATELLITE MAGNETIC CLEANLINESS BASED ON MAGNETIC FIELD SPATIAL HARMONICS COMPENSATION

Технічна електродинаміка
Problem of microsatellite magnetic cleanliness (MMC) improving by magnetic field (MF) spatial harmonics compensation and magnetic characteristics uncertainty (MCU) sensitivity reducing considered.
Б.І. Кузнецов, Т.Б. Нікітіна, І.В. Бовдуй, К.В. Чуніхін, В.В. Коломієць, Б.Б. Кобилянський   +5 more
doaj   +1 more source

Bifurcation, Chaotic, Sensitivity Analysis, and Optical Soliton Profiles for the Spin Hirota–Maxwell–Bloch Equation in an Erbium-Doped Fiber

Advances in Mathematical Physics
In this work, the reduced spin Hirota–Maxwell–Bloch (rsHMB) equation is examined analytically. This model is useful for characterizing the propagation of femtosecond pulses in an erbium-doped fiber.
Asma Taskeen, Muhammad Ozair Ahmed, Muhammad Zafarullah Baber, Baboucarr Ceesay, Nauman Ahmed   +4 more
doaj   +1 more source