Results 21 to 30 of about 14,489,673 (236)

The method of simple iterations with correction of convergence and the minimal discrepancy method for plasmonic problems

open access: yesФизика волновых процессов и радиотехнические системы, 2021
The problem of searching for complex roots of the dispersion equations of plasmon-polaritons along the boundaries of the layered structure-vacuum interface is considered. Such problems arise when determining proper waves along the interface of structures
Mikhail V. Davidovich   +2 more
doaj   +1 more source

Infinite–Dimensional Bifurcations in Spatially Distributed Delay Logistic Equation

open access: yesMathematics, 2022
This paper investigates the questions about the local dynamics in the neighborhood of the equilibrium state for the spatially distributed delay logistic equation with diffusion. The critical cases in the stability problem are singled out.
Sergey Kashchenko
doaj   +1 more source

Exact solution of lossy asymmetrical coupled dielectric slab waveguides [PDF]

open access: yes, 2001
This paper gives an exact characteristic equation for asymmetrical coupled dielectric slab waveguides with losses in both the guiding and surrounding regions.
Collier, R. J., Young, P. R.
core   +1 more source

A new method for estimating fault location in radial medium voltage distribution network only using measurements at feeder beginning [PDF]

open access: yesArchives of Electrical Engineering, 2023
This paper proposes a new fault location method in radial medium voltage distribution networks. The proposed method only uses the measurement data at the feeder beginning to approximate the characteristic equation showing the dependence between the ...
Truong Ngoc-Hung
doaj   +1 more source

Elastodynamic Equations: Characteristics, Wavefronts and Rays [PDF]

open access: yesThe Quarterly Journal of Mechanics and Applied Mathematics, 2009
Summary We derive the characteristic equations, and the so-called Christoffel equation, for the vector elastodynamic equations in terms of both hypersurfaces of nonuniqueness and as wavefronts based on a physical definition. We follow Courant and Hilbert in defining a wavefront as a surface for which a solution may be zero on one side but nonzero on ...
BOS, LEONARD PETER, SLAWINSKI M.
openaire   +2 more sources

Note on stability conditions for structured population dynamics models

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2016
We consider a characteristic equation to analyze asymptotic stability of a scalar renewal equation, motivated by structured population dynamics models.
Yukihiko Nakata
doaj   +1 more source

Energetic Analysis using theoretical modeling and the characteristic equation method in a small absorption chiller with LiBr/H2O

open access: yes, 2018
This paper sets out to examine a small absorption chiller that uses the pair LiBr/ H2O with a 4.5 kW nominal capacity, using theoretical modeling and the characteristic equation method.
Alvaro Antonio Ochoa Villa   +2 more
semanticscholar   +1 more source

On the stability and Hopf bifurcation of the non-zero uniform endemic equilibrium of a time-delayed malaria model

open access: yesNonlinear Analysis, 2016
This article considers a time-delayed mathematical model of immune response to Plasmodium falciparum (Pf) malaria. Infected red blood cells display a wide variety of surface antigens to which the body in turn responds by mounting specific immune ...
Israel Ncube
doaj   +1 more source

Slow solitary waves in multi-layered magnetic structures [PDF]

open access: yes, 2001
The propagation of slow sausage surface waves in a multi-layered magnetic configuration is considered. The magnetic configuration consists of a central magnetic slab sandwiched between two identical magnetic slabs (with equilibrium quantities different ...
B. Roberts   +4 more
core   +1 more source

SOLUTIONS TO THE CHARACTERISTIC EQUATION FOR INDUSTRIAL ROBOT ’ S ELLIPTIC TRAJECTORIES

open access: yes, 2016
Original scientific paper Linear independent non-projective transformations are used for different types of applications. Direct analytical method for solving the linear transformation of the characteristic equation for industrial robot is proposed.
P. Božek   +4 more
semanticscholar   +1 more source

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