Results 91 to 100 of about 130,152 (295)
Model‐based fault diagnosis in closed‐loop safety‐critical chemical reactors: An experimental study
AIChE Journal, EarlyView.Abstract This experimental study investigates fault detection and estimation in a continuous stirred‐tank reactor (CSTR) system under closed‐loop feedback control, including an analysis of different manipulative inputs for temperature regulation. A novel fault diagnosis approach is proposed, combining residual signal analysis and T2 statistic for real ...
Pu Du, Benjamin Wilhite, Costas Kravaris
wiley +1 more source
Open Mathematics, 2018 This paper investigates the dynamic behavior analysis on the prey-predator model with ratio-dependent Monod-Haldane response function under the homogeneous Dirichlet boundary conditions, which is used to simulate a class of biological system.
Feng Xiaozhou, Song Yi, An Xiaomin
doaj +1 more source
Asymmetry Helps: Eigenvalue and Eigenvector Analyses of Asymmetrically Perturbed Low-Rank Matrices
, 2020 This paper is concerned with the interplay between statistical asymmetry and spectral methods. Suppose we are interested in estimating a rank-1 and symmetric matrix $\mathbf{M}^{\star}\in \mathbb{R}^{n\times n}$, yet only a randomly perturbed version ...
Chen, Yuxin, Cheng, Chen, Fan, Jianqing
core
Nongeneric eigenvalue perturbations of Jordan blocks
Linear Algebra and its Applications, 1998 Conditions under which a Jordan block is perturbed are presented. The nontypical behaviour of the eigenvalues split up into some rings of different sizes is studied.
Yanyuan Ma, Alan Edelman
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Mapping uncertainty using differentiable programming
AIChE Journal, EarlyView.Abstract Uncertainty quantification (UQ) and propagation is a ubiquitous challenge in science, permeating our field in a general fashion, and its importance cannot be overstated. Recently, the commoditization of differentiable programming, motivated by the development of machine learning, has allowed easier access to tools for evaluating derivatives of
Victor Alves +3 more
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Renormalization analysis of intermittency in two coupled maps
, 1998 The critical behavior for intermittency is studied in two coupled one-dimensional (1D) maps. We find two fixed maps of an approximate renormalization operator in the space of coupled maps.
Aranson I. S. +5 more
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Advanced Intelligent Systems, Volume 7, Issue 3, March 2025.Quadrotor unmanned aerial vehicle control is critical to maintain flight safety and efficiency, especially when facing external disturbances and model uncertainties. This article presents a robust reinforcement learning control scheme to deal with these challenges.
Yu Cai +3 more
wiley +1 more source
Perturbations of the spectrum of nonlinear eigenvalue problems
Journal of Mathematical Analysis and Applications, 1978 In the application of nonlinear eigenvalue problems, we are frequently faced with a degree of uncertainty concerning the description of the region or the values of the coefficients in both the differential equation and the boundary conditions. As with linear eigenvalue problems, it is therefore of interest to ascertain whether the “spectrum” of such ...
Graeme C. Wake, L.Ju Fradkin
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Advanced Intelligent Systems, EarlyView.The combination of a parity‐time symmetry wireless technology with a cholesterol sensor integrated into a smart contact lens enables high‐sensitivity cholesterol sensing at low concentration. Cholesterol plays a critical role in physiological functions, but elevated levels increase the risk of cardiovascular disease.
Yang Cui +4 more
wiley +1 more source
Dissipative systems with nonlocal delayed feedback control
New Journal of Physics, 2018 We present a linear model, which mimics the response of a spatially extended dissipative medium to a distant perturbation, and investigate its dynamics under delayed feedback control.
Josua Grawitter +3 more
doaj +1 more source