Results 91 to 100 of about 168,117,835 (293)

Tensor Formulation of Kalman Filter and Linear Quadratic Gaussian Controller for Applications on Multilinear Dynamical Systems

open access: yesIET Radar, Sonar & Navigation
In this work, we generalise the popular Kalman filter and Linear Quadratic Gaussian controller for use on multi‐sensor and multi‐agent/‐target radar systems.
Alfonso Farina   +3 more
doaj   +1 more source

Multi‐Stimuli Responsive Angstrom‐Scale Two‐Dimensional Channels of Natural Layered Materials

open access: yesAdvanced Materials, EarlyView.
Å‐scale ion channels naturally formed within the interlayers of vermiculite clay enable ionic current modulation in response to mechanical, chemical, and electrical stimuli. Coupled pressure and electric fields induce reversible streaming current (Istream) polarity inversion, which is explained by a modified surface charge regulation model.
Raj Kumar Gogoi   +5 more
wiley   +1 more source

The Simultaneous System of two Quadratic Quaternary Forms [PDF]

open access: yesProceedings of the London Mathematical Society, 1920
n ...
openaire   +2 more sources

Spin Transport Across Interfaces With the Non‐Collinear Antiferromagnet Mn3Sn

open access: yesAdvanced Materials, EarlyView.
We study spin transport with Mn3Sn|Metal${\rm Mn}_3{\rm Sn}\vert{\rm Metal}$ heterostructures. For Mn3Sn|Pt${\rm Mn}_3{\rm Sn}\vert{\rm Pt}$ heterostructures, ultrafast spin current generation by optical pumping of Mn3Sn${\rm Mn}_3{\rm Sn}$ is explored, while for Mn3Sn|NiFe${\rm Mn}_3{\rm Sn}\vert{\rm NiFe}$ heterostructures, we probe the spin–charge ...
Paul A. Marschall   +8 more
wiley   +1 more source

Green's Functions of Non-Hermitian Systems at Exceptional Deficiency. [PDF]

open access: yesAdv Sci (Weinh)
We analyze the responses of a non‐Hermitian lattice system under the condition of exceptional deficiency (ED), when all bands in the system are formed by exceptional points. Using the frequency domain, we identify novel steady‐state responses that root in the broadband super‐Lorentzian Green's function (GF).
Lu C, Ma G.
europepmc   +2 more sources

Epitaxially Integrated Electro‐Optic KNbO3 Thin Films on Silicon

open access: yesAdvanced Materials, EarlyView.
We demonstrate the first epitaxial integration of electro‐optic KNbO3 thin films on silicon using suboxide molecular‐beam epitaxy. Combining adsorption‐controlled molecular‐beam epitaxy, advanced characterization, and phase‐field modeling, we demonstrate phase‐pure crystalline films mirroring bulk crystals with robust Pockels response, enabling future ...
Sankalpa Hazra   +17 more
wiley   +1 more source

Higher-order linear lossless systems

open access: yes, 2008
We define a lossless autonomous system as one having a quadratic differential form associated with it called the total energy, which obeys the property of positivity and which is conserved.
Rao, Shodhan, Rapisarda, Paolo
core   +2 more sources

Estimates of Reachable Sets for Systems with Impulsive Control, Uncertainty and Nonlinearity

open access: yesИзвестия Иркутского государственного университета: Серия "Математика", 2017
The problem of estimating trajectory tubes for nonlinear controlled dynamical systems with uncertainty in the initial data is studied. It is assumed that the dynamic system has a special structure in which the nonlinear terms are defined by quadratic ...
T. F. Filippova
doaj   +1 more source

Giant Nonequilibrium Valley Control via Spin‐Selective Hot‐Carrier Transfer in an Antiferromagnetic van der Waals Stack

open access: yesAdvanced Materials, EarlyView.
Spin‐selective hot‐carrier transfer across CrSBr/WSe2/CrSBr interfaces couples the continuously tunable magnetic configuration of antiferromagnetic CrSBr to the valley degrees of freedom of monolayer WSe2, enabling giant nonequilibrium valley control and magnetic‐state‐dependent reversal of circularly polarized emission.
Ke Xiao   +7 more
wiley   +1 more source

Exact Solutions to a Model for Micropolar Fluid Flows with Rayleigh Energy Dissipation

open access: yesPhysics
Polynomial exact solutions of the Navier–Stokes equations for describing micropolar incompressible fluid flows with energy dissipation are reported. The transformation of mechanical energy into thermal energy is taken into account.
Evgenii Yu. Prosviryakov   +3 more
doaj   +1 more source

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