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Numerical modelling is an essential approach to understanding the behavior of thermal plasmas in various industrial applications. We propose a deep learning method for solving the partial differential equations in thermal plasma models. In…

计算物理 · 物理学 2020-08-06 Linlin Zhong , Qi Gu , Bingyu Wu

In the present work, an attempted was made to develop a numerical algorithm by the use of new orthogonal hybrid functions formed from hybrid of piecewise constant orthogonal sample-and-hold functions and piecewise linear orthogonal…

数值分析 · 数学 2018-01-23 Seshu Kumar Damarla , Madhusree Kundu

We set up a system of Caputo-type fractional differential equations for a reduced-order model known as the {\em denatured} Morris-Lecar (dML) neurons. This neuron model has a structural similarity to a FitzHugh-Nagumo type system. We…

动力系统 · 数学 2025-02-26 Indranil Ghosh , Hammed Olawale Fatoyinbo

Most power systems' approaches are currently tending towards stochastic and probabilistic methods due to the high variability of renewable sources and the stochastic nature of loads. Conventional power flow (PF) approaches such as…

系统与控制 · 电气工程与系统科学 2024-01-17 Deepak Tiwari , Mehdi Jabbari Zideh , Veeru Talreja , Vishal Verma , Sarika K. Solanki , Jignesh Solanki

In this paper, we investigate neural networks applied to multiscale simulations and discuss a design of a novel deep neural network model reduction approach for multiscale problems. Due to the multiscale nature of the medium, the fine-grid…

The Fokker-Planck (FP) equation is a linear partial differential equation which governs the temporal and spatial evolution of the probability density function (PDF) associated with the response of stochastic dynamical systems. An exact…

计算物理 · 物理学 2023-10-02 Hussam Alhussein , Mohammed Khasawneh , Mohammed F. Daqaq

In this letter, we propose a learning based channel estimation scheme for orthogonal frequency division multiplexing (OFDM) systems in the presence of phase noise in doubly-selective fading channels. Two-dimensional (2D) convolutional…

信息论 · 计算机科学 2022-03-24 Sandesh Rao Mattu , A. Chockalingam

A lumped parameter model for tokamak plasma current and inductance time evolution as function of plasma resistance, non-inductive current drive sources and boundary voltage or poloidal field (PF) coil current drive is presented. The model…

等离子体物理 · 物理学 2011-03-28 J. A. Romero , JET-EFDA Contributors

Herein, we propose a spatio-temporal extension of RBFNN for nonlinear system identification problem. The proposed algorithm employs the concept of time-space orthogonality and separately models the dynamics and nonlinear complexities of the…

机器学习 · 统计学 2019-08-06 Shujaat Khan , Jawwad Ahmad , Alishba Sadiq , Imran Naseem , Muhammad Moinuddin

We introduce a new class of non-linear function-on-function regression models for functional data using neural networks. We propose a framework using a hidden layer consisting of continuous neurons, called a continuous hidden layer, for…

统计方法学 · 统计学 2023-10-10 Aniruddha Rajendra Rao , Matthew Reimherr

Deep Convolutional Neural Networks (CNNs) have been repeatedly proven to perform well on image classification tasks. Object detection methods, however, are still in need of significant improvements. In this paper, we propose a new framework…

计算机视觉与模式识别 · 计算机科学 2020-05-21 Mohammad K. Ebrahimpour , Jiayun Li , Yen-Yun Yu , Jackson L. Reese , Azadeh Moghtaderi , Ming-Hsuan Yang , David C. Noelle

This study employs scientific machine learning to identify transient time series of dynamical systems near a fold bifurcation of periodic solutions. The unique aspect of this work is that a convolutional neural network (CNN) is trained with…

机器学习 · 计算机科学 2025-01-31 Giuseppe Habib , Ádám Horváth

Phase-field models have been widely used to investigate the phase transformation phenomena. However, it is difficult to solve the problems numerically due to their strong nonlinearities and higher-order terms. This work is devoted to…

数值分析 · 数学 2024-07-23 Gang Bao , Chang Ma , Yuxuan Gong

This paper describes a study based on computational fluid dynamics (CFD) and deep neural networks that focusing on predicting the flow field in differently distorted U-shaped pipes. The main motivation of this work was to get an insight…

机器学习 · 计算机科学 2020-10-02 Gergely Hajgató , Bálint Gyires-Tóth , György Paál

The penalization method is used to take account of obstacles, such as the limiter, in a tokamak. Because of the magnetic confinement of the plasma in a tokamak, the transport occurs essentially in the direction parallel to the magnetic…

数值分析 · 数学 2014-03-05 Philippe Angot , Thomas Auphan , Olivier Guès

Optimal transmission switching (OTS) improves optimal power flow (OPF) by selectively opening transmission lines, but its mixed-integer formulation increases computational complexity, especially on large grids. To address this, we propose a…

系统与控制 · 电气工程与系统科学 2026-03-05 Minsoo Kim , Matthew Brun , Andy Sun , Jip Kim

Reduced-order plasma models that can efficiently predict plasma behavior across various settings and configurations are highly sought after yet elusive. The demand for such models has surged in the past decade due to their potential to…

等离子体物理 · 物理学 2024-03-05 Farbod Faraji , Maryam Reza , Aaron Knoll , J. Nathan Kutz

Nonreciprocal structures play an important role in optical physics and applications. Conventional approaches for designing nonreciprocal optical structures rely heavily on extensive numerical simulation and parameter tuning, leading to high…

光学 · 物理学 2026-03-12 Weiran Zhang , Hao Pan , Shubo Wang

Physics-informed neural networks (PiNNs) recently emerged as a powerful solver for a large class of partial differential equations under various initial and boundary conditions. In this paper, we propose trapz-PiNNs, physics-informed neural…

计算物理 · 物理学 2023-04-19 Senbao Jiang , Xiaofan Li

The probability density function of stochastic differential equations is governed by the Fokker-Planck (FP) equation. A novel machine learning method is developed to solve the general FP equations based on deep neural networks. The proposed…

计算物理 · 物理学 2020-02-19 Yong Xu , Hao Zhang , Yongge Li , Kuang Zhou , Qi Liu , Jürgen Kurths