Results 131 to 140 of about 79,939 (231)

Periodic orbits of continuous-discontinuous piecewise differential systems with four pieces separated by the curve xy = 0 and formed by linear Hamiltonian systems

In recent years there has been a significant interest in studying the piecewise differential systems, mainly due to their wide range of applications in modeling natural phenomena. To understand the dynamics of such systems in the plane is a significant challenge, particularly when we want to study their periodic orbits and, more specifically, their ...
Llibre, Jaume, Salhi, Tayeb
openaire   +2 more sources

Safe Stabilization Using Non‐Smooth Control Lyapunov Barrier Function

International Journal of Robust and Nonlinear Control, EarlyView.
ABSTRACT This paper addresses the challenge of safe stabilization, ensuring the system state reaches the origin while avoiding unsafe state regions. Existing approaches that rely on smooth Lyapunov barrier functions often fail to guarantee a feasible controller. To overcome this limitation, we introduce the non‐smooth control Lyapunov barrier function (
Jianglin Lan, Eldert van Henten, Peter Groot Koerkamp, Congcong Sun   +3 more
wiley   +1 more source

Numerical robustness of COVID-19 model with Lyapunov stability analysis. [PDF]

Sci Rep
Pandey A, Ghosh S.
europepmc   +1 more source

A Novel Crawling Robot Based on the Hexagonal Mesh Structure and Enhanced PID Control Strategy

Journal of Field Robotics, EarlyView.
ABSTRACT The locomotion of crawling robots is similar to that of caterpillars, relying on foot adhesion and body contraction to ensure flexible movement without compromising stability. However, most existing pneumatic soft crawling robots are incapable of simultaneously achieving forward, backward, turning, and climbing capabilities.
Meng Hongjun, Ren Yuke, Wei Jingtao, Zhang Shupeng, Zhang Wei   +4 more
wiley   +1 more source

A predator-prey model with age-structured role reversal. [PDF]

J Math Biol
Suarez LC, Cameron MK, Fagan WF, Levy D.
europepmc   +1 more source

Automated Identification of Thermal Transitions in Conjugated Material Thin Films Using In Situ Optical Spectroscopy

Small Methods, EarlyView.
This study demonstrates the effectiveness of in situ UV−vis coupled with automated data analysis, namely, ATLAS, for fast and reliable identification of multiple thermal transition in conjugated polymer thin films. This ATLAS method will significantly accelerate the understanding of the phase behavior of D‐A polymers with important implications for ...
Doan Vu, Martyn Jevric, Alireza Samadani, Mats R. Andersson, Christopher R. McNeill, Brendan T. O'Connor, Harald Ade   +6 more
wiley   +1 more source

Enhanced FPGA-based smart power grid simulation using Heun and Piecewise analytic method. [PDF]

Sci Rep
Gul U, Raza Ur Rehman HM, Gul MJ, Mezquita GM, Barrera AEP, Ashraf I.   +5 more
europepmc   +1 more source

A Novel Approach to Energy Management in Electric Steelworks

steel research international, EarlyView.
Feed‐forward neural networks are exploited to estimate electric energy consumptions of the electric arc furnace and ladle furnace processes. The models are used to optimize production schedule so that more energy intensive grades are produced when the cost of energy is lower.
Valentina Colla, Stefano Dettori, Silvia Cateni, Marco Vannucci, Antonella Vignali, Claudio Mocci, Irene Dovichi, Davide Chionna, Lorenzo Vannini, Enrico Paluzzano, Costanzo Pietrosanti, Davide Onesti, Daniele Venier   +12 more
wiley   +1 more source

Sharp Lyapunov inequalities and the emergence of chaos in discrete fractional systems. [PDF]

Sci Rep
Arab M, Mohammed PO, Baleanu D, Hamasalh FK.   +3 more
europepmc   +1 more source

A new smooth failure criterion for concrete inspired by Lubliner's condition

Structural Concrete, EarlyView.
Abstract A new failure criterion with 10 parameters is proposed, based on Lubliner's idea of joining two Drucker–Prager cones. The novelty lies in the way of introducing deviatoric shape variation: through two Podgórski's functions. This feature allows for improving plane stress cross‐section's compatibility with experimental data.
Inez Kamińska, Aleksander Szwed
wiley   +1 more source