Results 101 to 110 of about 53,306 (259)

On the Use of Resultant-Based Frequency-Sweeping Approaches to Construct Stability Charts for Systems With Two Delays

open access: yesIEEE Access
The resultant-based frequency-sweeping approach is appealing for creating a stability map to study stability robustness against delay uncertainties. It relies on converting the system’s transcendental characteristic function into a polynomial form
Chyi Hwang   +3 more
doaj   +1 more source

Impact of Packaging and Recycling Systems on Material Recirculation: A Stage‐Decomposition Model

open access: yesPackaging Technology and Science, EarlyView.
A system‐level view emerges from decomposing recycling into four stages (participation, collection, sorting and process yield), diagnosing constraints and targeting interventions. Cumulative equivalent uses (CEUs) quantify long‐term retention, revealing marginal improvements at high baselines generate disproportionately larger gains than low‐baseline ...
Diogo Figueirinhas   +3 more
wiley   +1 more source

Symbolic computation in algebra, geometry, and differential equations

open access: yesInformation and Computation
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +2 more sources

New Solutions of Breaking Soliton Equation Using Softmax Method

open access: yesJournal of Applied Mathematics
This study presents the application of a novel Softmax method to obtain exact analytical solutions of the breaking soliton equation, a nonlinear partial differential equation that models complex wave phenomena. By transforming the governing equation into
Nguyen Minh Tuan   +2 more
doaj   +1 more source

LLM-Powered, Expert-Refined Causal Loop Diagramming via Pipeline Algebra

open access: yesSystems
Building a causal-loop diagram (CLD) is central to system-dynamics modeling but demands domain insight, the mastery of CLD notation, and the ability to juggle AI, mathematical, and execution tools.
Kirk Reinholtz   +2 more
doaj   +1 more source

Recursive Feasibility of Nonlinear Stochastic Model Predictive Control With Gaussian Process Dynamics

open access: yesInternational Journal of Robust and Nonlinear Control, EarlyView.
ABSTRACT Data‐based learning of system dynamics allows model‐based control approaches to be applied to systems with partially unknown dynamics. Gaussian process regression is a preferred approach that outputs not only the learned system model but also the variance of the model, which can be seen as a measure of uncertainty.
Daniel Landgraf   +2 more
wiley   +1 more source

Solving differential‐algebraic equations in power system dynamic analysis with quantum computing

open access: yesEnergy Conversion and Economics
Power system dynamics are generally modeled by high dimensional non‐linear differential‐algebraic equations (DAEs) given a large number of components forming the network.
Huynh T. T. Tran   +3 more
doaj   +1 more source

Can Computer Algebra be Liberated from its Algebraic Yoke ?

open access: yes, 2005
So far, the scope of computer algebra has been needlessly restricted to exact algebraic methods. Its possible extension to approximate analytical methods is discussed.
Barrere, R.
core   +1 more source

The role of identification in data‐driven policy iteration: A system theoretic study

open access: yesInternational Journal of Robust and Nonlinear Control, EarlyView.
Abstract The goal of this article is to study fundamental mechanisms behind so‐called indirect and direct data‐driven control for unknown systems. Specifically, we consider policy iteration applied to the linear quadratic regulator problem. Two iterative procedures, where data collected from the system are repeatedly used to compute new estimates of ...
Bowen Song, Andrea Iannelli
wiley   +1 more source

Exploration of soliton structures in (3+1)-dimensional generalized evolution nonlinear equation using an efficient integration scheme

open access: yesBeni-Suef University Journal of Basic and Applied Sciences
Background Nonlinear wave equations in higher dimensions play a crucial role in describing complex behaviors in dispersive media such as optics, plasma, and fluid dynamics.
Ibrahim Saber   +3 more
doaj   +1 more source

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