Zobrazeno 1 - 10
of 819
pro vyhledávání: '"convergence of numerical methods"'
Autor:
Nien‐Che Yang, Chih‐Hsiung Tseng
Publikováno v:
IET Generation, Transmission & Distribution, Vol 18, Iss 13, Pp 2339-2352 (2024)
Abstract This study introduces a series of strategies to enhance convergence in the Newton–Raphson power flow method for unbalanced distribution networks. The proposed approach incorporates graph theory, Kron reduction, and current injection techni
Externí odkaz:
https://doaj.org/article/8d4aa257b91b45029ed57278f8dc62d0
Autor:
Bastian Kaulen, Gerhard Schmidt
Publikováno v:
IET Radar, Sonar & Navigation, Vol 17, Iss 7, Pp 1160-1174 (2023)
Abstract Characterising underwater acoustic transducers is essential to optimal signal processing in sound navigation and ranging systems. Precise characterisation allows for equalisation of the input and output hardware, resulting in improved perfor
Externí odkaz:
https://doaj.org/article/7ca50a95e9c543e0ac25cc50bb343d4f
Publikováno v:
IET Generation, Transmission & Distribution, Vol 17, Iss 6, Pp 1368-1382 (2023)
Abstract Power‐Flow (PF) solution in isolated microgrids has attracted notable attention recently, because these systems present various particularities compared with the traditional PF solution in large meshed transmission networks. In this sense,
Externí odkaz:
https://doaj.org/article/ce9a80e384af495790be2f07c902f93a
Publikováno v:
IET Microwaves, Antennas & Propagation, Vol 15, Iss 10, Pp 1147-1158 (2021)
Abstract The transmission of an electromagnetic field produced by a current loop of finite radius through a coaxial circular aperture in a perfectly conducting plate is evaluated through a rapidly convergent formulation in an exact form. By applying
Externí odkaz:
https://doaj.org/article/4e2589e8f9e3473885b16ac4a29936d8
Autor:
Nikolaos L. Tsitsas
Publikováno v:
IET Microwaves, Antennas & Propagation, Vol 15, Iss 10, Pp 1194-1205 (2021)
Abstract Scattering of the E‐polarised plane electromagnetic wave from two different but of the same‐period all‐dielectric rectangular bar gratings on substrates is analysed using a volume‐integral‐equation (VIE) method. Here, VIE is a Fred
Externí odkaz:
https://doaj.org/article/568260ac41af40ca88fb9681e82fd73a
Publikováno v:
IET Microwaves, Antennas & Propagation, Vol 15, Iss 10, Pp 1360-1379 (2021)
Abstract An initial‐boundary value problem for the transient electromagnetic field in the presence of a complicated‐shape scatterer is studied. The considered biconical zero‐thickness and perfectly conducting surface with periodic longitudinal
Externí odkaz:
https://doaj.org/article/c952d5bba0604d9fae5be3203e7a6bab
Autor:
Constantin Fetecău, Costică Moroşanu
Publikováno v:
Axioms, Vol 12, Iss 4, p 406 (2023)
Two main topics are addressed in the present paper, first, a rigorous qualitative study of a second-order reaction–diffusion problem with non-linear diffusion and cubic-type reactions, as well as inhomogeneous dynamic boundary conditions. Under cer
Externí odkaz:
https://doaj.org/article/a2c8175590954218979bddd8ffe48190
Akademický článek
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Akademický článek
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Publikováno v:
IEEE Access, Vol 8, Pp 85664-85674 (2020)
In this paper, a new spectral scaling memoryless Broyden-Fletcher-Goldfarb-Shanno (BFGS) algorithm is developed for solving large scale unconstrained optimization problems, where the scaling parameter is chosen so as to minimize all the eigenvalues o
Externí odkaz:
https://doaj.org/article/40a54bea29d94d7692ee1b291b187519