Results 41 to 50 of about 43,852 (309)

Optimal control of nonlinear systems: a predictive control approach [PDF]

, 2003
A new nonlinear predictive control law for a class of multivariable nonlinear systems is presented in this paper. It is shown that the closed-loop dynamics under this nonlinear predictive controller explicitly depend on design parameters (prediction time
Gawthrop, P. J., Wen-Hua Chen (1251597), Chen, W.H., Donald J. Ballance (7122098), Peter J. Gawthrop (7122794), Peter J Gawthrop, Wen-hua Chen, Ballance, D.J., Donald J. Ballance   +8 more
core   +1 more source

Analytic Matrix Method for Frequency Response Techniques Applied to Nonlinear Dynamical Systems I: Small and Medium Amplitude Oscillations

, 2021
This is the first on a series of articles that deal with nonlinear dynamical systems under oscillatory input that may exhibit harmonic and non-harmonic frequencies and possibly complex behavior in the form of chaos.
Octavio Manero, Elena Hernandez, Fernando Bautista, Juan Paulo Garcia-Sandoval   +3 more
core   +1 more source

Bayesian Recurrent Neural Network Models for Forecasting and Quantifying Uncertainty in Spatial-Temporal Data

Entropy, 2019
Recurrent neural networks (RNNs) are nonlinear dynamical models commonly used in the machine learning and dynamical systems literature to represent complex dynamical or sequential relationships between variables.
Patrick L. McDermott, Christopher K. Wikle   +1 more
doaj   +1 more source

Pharmacological inhibition of the PERK pathway modulates hepatocellular carcinoma growth and immune signaling

FEBS Open Bio, EarlyView.
Pharmacological inhibition of PERK in a DEN‐induced mouse model of liver cancer does not reduce tumor burden but alters cellular stress signaling. Despite blocking PERK activity, downstream stress responses, including CHOP expression, remain active, suggesting compensatory mechanisms within the unfolded protein response that may influence tumor ...
Ada Lerma‐Clavero, Maria Kopsida, Nathalie Arendt, Hans Lennernäs, Markus Sjöblom, Femke Heindryckx   +5 more
wiley   +1 more source

Standalone DC microgrids as complementarity dynamical systems: Modeling and applications [PDF]

, 2015
It is well known that, due to bimodal operation as well as existent discontinuous differential states of batteries, standalone microgrids belong to the class of hybrid dynamical systems of non-Filippov type.
Alireza Maheri (16272944), Krishna Busawon (16272953), Fritzson, Peter,, Fritzson, Peter, Maheri, Alireza,, Busawon, Krishna, Arash M. Dizqah (5546747), Peter Fritzson (16272986), Disqah, Arash,, Maheri, Alireza, Busawon, Krishna,, Dizqah, Arash   +11 more
core   +1 more source

Directed evolution of enzymes at the crossroads of tradition and innovation

FEBS Open Bio, EarlyView.
An iterative cycle of data‐driven enzyme optimization comprising four stages: genetic diversification of a template enzyme, expression of protein variants, high‐throughput evaluation, and machine‐learning‐guided redesign of the next variant library.
Maria Tomkova, Andrej Mirossay, Erik Sedlak   +2 more
wiley   +1 more source

Fluid Biomarkers of Disease Burden and Cognitive Dysfunction in Progressive Supranuclear Palsy

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Identifying objective biomarkers for progressive supranuclear palsy (PSP) is crucial to improving diagnosis and establishing clinical trial and treatment endpoints. This study evaluated fluid biomarkers in PSP versus controls and their associations with regional 18F‐PI‐2620 tau‐PET, clinical, and cognitive outcomes.
Roxane Dilcher, Charles B. Malpas, Stuart J. McDonald, William T. O’Brien, Craig Despott, Kelly L. Bertram, Matthew P. Pase, Lukas Frontzkowski, Meng Law, Terence J. O’Brien, Lucy Vivash   +10 more
wiley   +1 more source

Nonlinear Dynamical Systems as Enablers of Exploratory Engagement with Musical Instruments [PDF]

, 2014
This paper presents a small scale study that examined links between the inclusion of nonlinear dynamical processes in musical tools and particular kinds of engagement.
Mulholland, Paul, Dalton, Nicholas, Mudd, Tom, Dalton, Nick, Holland, Simon   +4 more
core  

Realization of multivariable nonlinear systems via the approaches of differential forms and differential algebra

, 2010
summary:In this paper differential forms and differential algebra are applied to give a new definition of realization for multivariable nonlinear systems consistent with the linear realization theory.
Moog, Claude H., Moog, Claude, Xia, Xiaohua, Moog, Claude, H., Zhang, Jiangfeng, Zhang, Jiangfeng Jeff   +5 more
core   +1 more source

Dimensionality reduction of complex dynamical systems

iScience, 2021
Summary: One of the outstanding problems in complexity science and engineering is the study of high-dimensional networked systems and of their susceptibility to transitions to undesired states as a result of changes in external drivers or in the ...
Chengyi Tu, Paolo D'Odorico, Samir Suweis   +2 more
doaj   +1 more source