Results 21 to 30 of about 53,219 (293)
Communicating vessels: a non-linear dynamical system
Revista Brasileira de Ensino de FísicaThe dynamics of an ideal fluid contained in two communicating vessels is studied. Despite the fact that the static properties of this system have been known since antiquity, the knowledge of the dynamical properties of an ideal fluid flowing in two ...
Roberto De Luca, Orazio Faella
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Nonlinear Analysis, 2014 In this paper, we dealt with the issue of the regularity of the linear extension of the dynamical system. Using the Lyapunov function with the changeable sign, conditions for the regularity of the entire examined dynamical system were given, assuming ...
Dariusz Paczko, Viktor Kulyk
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Koopman Invariant Subspaces and Finite Linear Representations of Nonlinear Dynamical Systems for Control. [PDF]
PLoS ONE, 2016 In this wIn this work, we explore finite-dimensional linear representations of nonlinear dynamical systems by restricting the Koopman operator to an invariant subspace spanned by specially chosen observable functions.
Steven L Brunton +3 more
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Linear RNNs Provably Learn Linear Dynamical Systems
Journal of Optimization Theory and Applications14 ...
Wang, Lifu +5 more
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Controllability of nonlinear fractional Langevin delay systems
Nonlinear Analysis, 2019 In this paper, we discuss the controllability of fractional Langevin delay dynamical systems represented by the fractional delay differential equations of order 0
Pitchaikkannu Suresh Kumar +2 more
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Complexity and Dynamical Depth
Information, 2014 We argue that a critical difference distinguishing machines from organisms and computers from brains is not complexity in a structural sense, but a difference in dynamical organization that is not well accounted for by current complexity measures.
Terrence Deacon, Spyridon Koutroufinis
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Therapeutic Apheresis and Dialysis, EarlyView.ABSTRACT Introduction Cognitive impairment and exercise intolerance are common in dialysis patients. Cerebral perfusion and oxygenation play a major role in both cognitive function and exercise execution; HD session per se aggravates cerebral ischemia in this population. This study aimed to compare cerebral oxygenation and perfusion at rest and in mild
Marieta P. Theodorakopoulou +10 more
wiley +1 more source
Revealing the structure of land plant photosystem II: the journey from negative‐stain EM to cryo‐EM
FEBS Letters, EarlyView.Advances in cryo‐EM have revealed the detailed structure of Photosystem II, a key protein complex driving photosynthesis. This review traces the journey from early low‐resolution images to high‐resolution models, highlighting how these discoveries deepen our understanding of light harvesting and energy conversion in plants.
Roman Kouřil
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MODELLING LINEAR DYNAMIC ECONOMETRIC SYSTEMS
Scottish Journal of Political Economy, 1994 Econometric modeling of linear dynamic systems is considered in the light of new reasons for general to simple modeling of the joint data density. To offset the resulting modeling burden due to large numbers of variables, equations, and parameters, the authors consider PcFiml 8 as a modeling tool.
Hendry, D, Doornik, J
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FEBS Letters, EarlyView.Enteropathogenic E. coli (EPEC) infects the human intestinal epithelium, resulting in severe illness and diarrhoea. In this study, we compared the infection of cancer‐derived cell lines with human organoid‐derived models of the small intestine. We observed a delayed in attachment, inflammation and cell death on primary cells, indicating that host ...
Mastura Neyazi +5 more
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