Results 21 to 30 of about 114,830 (264)

Primena metoda ugaone superrezolucije za koncipiranje glave za samonavođenje protivradarske rakete / Angular superposition method and its application in the concept of the antiradar missile homing head [PDF]

open access: yesVojnotehnički Glasnik, 2003
U radu su analizirani sistemi klasične pasivne radarske detekcije ciljeva i definisani zahtevi superrezolucije dva vrlo bliska radarska cilja. Analizirane su referentne metode superrezolucije zasnovane na određivanju ugla dolazećih elektromagnetnih ...
Stojan Marković
doaj   +1 more source

Estimating sea-surface temperature transport fields from stochastically-forced fluctuations

open access: yesNew Journal of Physics, 2014
In this article we introduce a method to quantify the transport of sea surface temperature (SST) from SST fluctuations. Previous studies have estimated the advective transport of SST from time-lag correlation of SST anomalies.
S A Jeffress, T W N Haine
doaj   +1 more source

A reduced-dissipation WENO scheme with automatic dissipation adjustment [PDF]

open access: yesJournal of Computational Physics, 2021
[Abstract:] In this paper, we propose a novel modification to the WENO-family schemes to reduce its intrinsic dissipation. In this work, we focus on the WENO5 scheme, which is rewritten in terms of a central plus a dissipative part, and then, the dissipation is controlled based on the flow physics.
Javier Fernández-Fidalgo   +4 more
openaire   +3 more sources

Dissipative and weakly--dissipative regimes in nearly--integrable mappings

open access: yesDiscrete and Continuous Dynamical Systems, 2006
We consider a dissipative standard map--like system, which is governed by two parameters measuring the strength of the dissipation and of the perturbation. In order to investigate the dynamics, we follow a numerical and an analytical approach. The numerical study relies on the frequency analysis and on the computation of the differential fast ...
CELLETTI, ALESSANDRA   +2 more
openaire   +3 more sources

Characterization of the dissipative mappings and their application to perturbations of dissipative‐Hamiltonian systems [PDF]

open access: yesNumerical Linear Algebra with Applications, 2021
AbstractIn this article, we find necessary and sufficient conditions to identify pairs of matrices X and Y for which there exists such that is positive semidefinite and . Such a is called a dissipative mapping taking X to Y. We also provide two different characterizations for the set of all dissipative mappings, and use them to characterize the ...
Baghel, Mohit Kumar   +2 more
openaire   +4 more sources

Rotational mirror–mirror entanglement via dissipative atomic reservoir in a double-Laguerre–Gaussian-cavity system

open access: yesNew Journal of Physics, 2023
We propose a new scheme to prepare macroscopic entanglement between two rotating mirrors using dissipative atomic reservoir in a double-Laguerre–Gaussian-cavity system.
Fei Wang, Kang Shen, Jun Xu
doaj   +1 more source

Cyclo-Dissipativity Revisited

open access: yesIEEE Transactions on Automatic Control, 2021
Starting from a symmetrization and extension of the basic definitions and results of dissipativity theory we obtain new results on cyclo-dissipativity; in particular their external characterization and description of the set of storage functions.
openaire   +3 more sources

Probing viscoelastic surfaces with bimodal tapping-mode atomic force microscopy: Underlying physics and observables for a standard linear solid model

open access: yesBeilstein Journal of Nanotechnology, 2014
This paper presents computational simulations of single-mode and bimodal atomic force microscopy (AFM) with particular focus on the viscoelastic interactions occurring during tip–sample impact.
Santiago D. Solares
doaj   +1 more source

Galactic Density and Evolution Based on the Virial Theorem, Energy Minimization, and Conservation of Angular Momentum

open access: yesGalaxies, 2018
Spiral galaxies are spinning, internally densified objects. The Virial Theorem explains galactic rotation curves via its linkage of the rotation rate to the gravitational self-potential (Ug) and the moment of inertia of oblate spheroids.
Robert E. Criss, Anne M. Hofmeister
doaj   +1 more source

SMA-Activated Double-Stage Yielding BRB: Experimental and FEM Insights

open access: yesBuildings
To address the limitations of traditional buckling-restrained braces (BRB), which feature a single-stage yielding and inadequate energy dissipation under small earthquakes, this study proposes a novel double-stage yielding buckling-restrained brace (DSY ...
Huijie Huang   +4 more
doaj   +1 more source

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