Results 71 to 80 of about 3,936,282 (345)

Simple derivation of stability radius of multivariatesystems

Electronics Letters, 1997
The authors show that stability radii of discrete multivariate systems can be derived in a straightforward fashion by applying the maximum modulus principle for holomorphic functions of several complex variables.
H. Hasegawa, I. Yamada, K. Sakaniwa
openaire   +2 more sources

On the stability and spectral radius of a finite set of matrices [PDF]

Linear and Multilinear Algebra, 2015
This paper studies some problems related to the stability and the spectral radius of a finite set of matrices. A seasonal epidemic model is given to illustrate the use of the obtained results. In this example, the relationship between the obtained results and the stability of a discrete time periodic linear system is obtained.
Cantó Colomina, Begoña, Coll, Carmen, Sánchez, Elena   +2 more
openaire   +2 more sources

Performance Triggered Adaptive Model Reduction for Soil Moisture Estimation in Precision Irrigation

International Journal of Adaptive Control and Signal Processing, EarlyView.
ABSTRACT Accurate soil moisture information is essential for precise irrigation to enhance water use efficiency. Estimating soil moisture based on limited soil moisture sensors is especially critical for obtaining comprehensive soil moisture information when dealing with large‐scale agricultural fields.
Sarupa Debnath, Bernard Twum Agyeman, Soumya Ranjan Sahoo, Xunyuan Yin, Jinfeng Liu   +4 more
wiley   +1 more source

Neural Network Adaptive Control With Long Short‐Term Memory

International Journal of Adaptive Control and Signal Processing, EarlyView.
ABSTRACT In this study, we propose a novel adaptive control architecture that provides dramatically better transient response performance compared to conventional adaptive control methods. This is accomplished by the synergistic employment of a traditional adaptive neural network (ANN) controller and a long short‐term memory (LSTM) network.
Emirhan Inanc, Abdullah Habboush, Yigit Gurses, Yildiray Yildiz, Anuradha M. Annaswamy   +4 more
wiley   +1 more source

Hydrogel‐Based Capacitive Sensor Model for Ammonium Monitoring in Aquaculture

Advanced Engineering Materials, EarlyView.
Traditional techniques for monitoring aquaculture water quality, particularly ammonium levels, harm fish. This work presents a novel capacitive sensor with an ionic hydrogel transducer to monitor ammonium concentration in real time based on the ammonium‐induced hydrogel dissociation and osmotic pressure. Monitoring aquaculture water quality, especially
Mohammad Mirzaee, Mahdi Askari‐sedeh, Ali Zolfagharian, Mostafa Baghani   +3 more
wiley   +1 more source

Revisiting Stability Criteria in Ball‐Milled High‐Entropy Alloys: Do Hume–Rothery and Thermodynamic Rules Equally Apply?

Advanced Engineering Materials, Volume 27, Issue 6, March 2025.
The stability criteria affecting the formation of high‐entropy alloys, particularly focusing in supersaturated solid solutions produced by mechanical alloying, are analyzed. Criteria based on Hume–Rothery rules are distinguished from those derived from thermodynamic relations. The formers are generally applicable to mechanically alloyed samples.
Javier S. Blázquez, Alejandro F. Manchón‐Gordón, Antonio Vidal‐Crespo, Rafael Caballero‐Flores, Jhon J. Ipus, Clara F. Conde   +5 more
wiley   +1 more source

The stability radius of a quasi-Fredholm operator [PDF]

Proceedings of the American Mathematical Society, 1998
We extend the technique used by Kordula and Müller to show that the stability radius of a quasi-Fredholm operator T T is the limit of γ ( T n ) 1 / n \gamma (T^n)^{1/n} as
openaire   +2 more sources

Efficient Method for Computing Lower Bounds on the $p$-radius of Switched Linear Systems

, 2016
This paper proposes lower bounds on a quantity called $L^p$-norm joint spectral radius, or in short, $p$-radius, of a finite set of matrices. Despite its wide range of applications to, for example, stability analysis of switched linear systems and the ...
Brewer, Burke, Costa, Fang, Hürlimann, Jia, Jungers, Jungers, Jungers, Kozin, Kozyakin, Lau, Masaki Ogura, Ogura, Ogura, Overton, Protasov, Raphaël M. Jungers, Vankeerberghen, Victor M. Preciado, Wang, Zhou   +21 more
core   +1 more source

Development and Validation of a One‐Dimensional Finite Difference Simulation Scheme for Polymer Laser Powder Bed Fusion with Application to the Effect of the Inter Layer Time

Advanced Engineering Materials, EarlyView.
The study presents an efficient simulation approach for the polymer laser powder bed fusion process polymers process, validated with polyamide 12, polyamide 6, and polyetherketoneketone. It shows that inter layer time affects part density, with 90s yielding dense parts.
Claas Bierwisch, Bastien Dietemann, Moritz Grünewald, Christian Schlör, Johannes Rudloff   +4 more
wiley   +1 more source

Stability of second-order differential inclusions

Electronic Journal of Differential Equations, 2011
For an arbitrary second-order stable matrix A, we calculate the maximum positive value R for which the differential inclusion $$ dot{x}in F_{R}(x):={(A+Delta)x, Delta in mathbb{R}^{2imes 2}, |Delta | leq R } $$ is asymptotically stable.
Henry Gonzalez
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