Transient dynamics and nonlinear fitness: A matrix approach to pulse and press perturbation. [PDF]
EcologyAbstract Disturbances can occur as short‐lived pulses (e.g., storms) or sustained presses (e.g., chronic drought). Much work in ecology has developed methods to help predict how natural populations respond to disturbances, but analyses of pulse and press disturbances have been largely disconnected.
Jaggi H +5 more
europepmc +2 more sources
Skyrmionic Polarization Textures in Structured Dielectric Planar Media. [PDF]
NanophotonicsTopological skyrmionic textures are typically associated with the structure of optical fields. This work demonstrates that they can also emerge from the optical response of structured metasurfaces. Through engineered light–matter interaction, polarization eigenstates acquire nontrivial topology, which can be mapped into the Chern‐insulator physics ...
Di Colandrea F, Marrucci L, Cardano F.
europepmc +2 more sources
Electromagnetic dynamic stability analysis of power electronics-dominated systems using eigenstructure-preserved LTP Theory [PDF]
Nature CommunicationsSecure operation of power systems, one of the largest man-made systems, is crucial for economic development and societal well-being. Over the past century, initiatives like Europe’s Super Grid and China’s Dual Carbon plan have driven significant changes ...
Jiabing Hu +11 more
doaj +2 more sources
Rapid reversal of a potentially constraining genetic covariance between leaf and flower traits in Silene latifolia [PDF]
Ecology and Evolution, 2020 Genetic covariance between two traits generates correlated responses to selection, and may either enhance or constrain adaptation. Silene latifolia exhibits potentially constraining genetic covariance between specific leaf area (SLA) and flower number in
Janet C. Steven +3 more
doaj +2 more sources
Predicting Ion Sequestration in Charged Polymers with the Steepest-Entropy-Ascent Quantum Thermodynamic Framework [PDF]
NanomaterialsThe steepest-entropy-ascent quantum thermodynamic framework is used to investigate the effectiveness of multi-chain polyethyleneimine-methylenephosphonic acid in sequestering rare-earth ions (Eu3+) from aqueous solutions.
Jared McDonald +2 more
doaj +2 more sources
Combined Enhanced LMI Charactrization and Parametric Eigenstructure Assignment Using Static Output Feedback [PDF]
Journal of Intelligent Procedures in Electrical Technology, 2012 This paper proposes mixed eigenstructure assignment with H∞ constraint when the states are not measurable. In this case, full state feedback is not permissible. So eigenstructure assignment by output feedback is considered.
Amir Parviz Valadbeygi +2 more
doaj +2 more sources
Induction machine control using robust eigenstructure assignment [PDF]
, 2006 International audienceControl of induction machines is well known to be difficult owing to the fact that the models of induction motor are highly nonlinear and time variant.
Duval, Christian +2 more
core +8 more sources
Eigenstructure Assignment Based Controllers Applied to Flexible Spacecraft [PDF]
, 2011 The objective of this paper is to evaluate the behaviour of a controller designed using a parametric Eigenstructure Assignment method and to evaluate its suitability for use in flexible spacecraft.
Aranda Almansa, Joaquín +3 more
core +2 more sources
An optimal finite-dimensional modeling in heat conduction and diffusion equations with partially known eigenstructure [PDF]
, 2003 An optimal finite-dimensional modeling technique is presented for a standard class of distributed parameter systems for heat and diffusion equations.
Ando, Yasuaki +2 more
core +1 more source
Eigenstructure Conditions for Loop Transfer Recovery [PDF]
, 1988 Conditions for loop transfer recovery based on eigenstructure assignment are derived. These conditions imply constraints on the eigenvalues and certain parameter vectors of the controller.
Per Sogaard-Andersen +1 more
core +1 more source