Zobrazeno 1 - 10
of 2 749
pro vyhledávání: '"Curl (mathematics)"'
Autor:
Peter H. Dahl, David R. Dall'Osto
Publikováno v:
IEEE Journal of Oceanic Engineering. 47:680-689
The Intensity Vector Autonomous Recorder (IVAR) measures acoustic particle velocity and pressure simultaneously. IVAR was deployed on the seabed during the 2017 Seabed Characterization Experiment (SBCEX) with the primary objective to study sound prop
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0a4c42f9e48e23c2f0da971b6646fd7f
https://doi.org/10.1109/joe.2021.3086880
https://doi.org/10.1109/joe.2021.3086880
Publikováno v:
IEEE Transactions on Antennas and Propagation. 70:3082-3087
In this communication, a low-profile circularly polarized (CP) staircase curl antenna array with 2:1 impedance bandwidth and 50% axial ratio bandwidth is proposed for 5G millimeter-wave (mmW) communications. It overcomes a vital drawback of complex m
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e117ec149445cf4dffdb215865e3c324
https://doi.org/10.1109/tap.2021.3118794
https://doi.org/10.1109/tap.2021.3118794
Publikováno v:
Communications on Applied Mathematics and Computation, 5 (1)
Several important PDE systems, like magnetohydrodynamics and computational electrodynamics, are known to support involutions where the divergence of a vector field evolves in divergence-free or divergence constraint-preserving fashion. Recently, new
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7ee2a08313c291d8667200d8d5d04bf3
Autor:
Alessia Farneti, A. Faiella, Maria Guerrisi, Valeria Landoni, Giuseppe Sanguineti, Marica Masi, Simona Marzi
Publikováno v:
Physica Medica. 92:32-39
PURPOSE To evaluate the accuracy of rigid coregistration between multiparametric magnetic resonance (mpMR) and computed tomography (CT) images for radiotherapy of prostate bed cancer recurrence. MATERIALS AND METHOD Fifty-three patients (59 nodules)
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6b95f1c1f90b92a3f16848ebc69db538
https://doi.org/10.1016/j.ejmp.2021.11.010
https://doi.org/10.1016/j.ejmp.2021.11.010
Autor:
Alberto Enciso, Daniel Peralta-Salas
Publikováno v:
Annali della scuola normale superiore di Pisa
We say that a bounded domain $\Omega$ is optimal for the first positive curl eigenvalue $\mu_1(\Omega)$ if $\mu_1(\Omega)\leq \mu_1(\Omega')$ for any domain $\Omega'$ with the same volume. In spite of the fact that $\mu_1(\Omega)$ is uniformly lower
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a228ec0793db09de95bd1a4f5128230b
https://doi.org/10.2422/2036-2145.202010_008
https://doi.org/10.2422/2036-2145.202010_008
Publikováno v:
IEEE Transactions on Microwave Theory and Techniques. 69:4613-4622
The ill-conditioned numerical system arising from an electromagnetic analysis is often due to the discretized curl–curl operator which has both zero eigenvalues and large ones inversely proportional to the square of the smallest feature size. In th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5bd3a17a87b35d2f06e6aebeb77437dd
https://doi.org/10.1109/tmtt.2021.3108549
https://doi.org/10.1109/tmtt.2021.3108549
Autor:
Xing-Bin Pan
Publikováno v:
Journal of Elliptic and Parabolic Equations. 7:923-944
This note presents a regularity result with proof for an initial-boundary value problem of a linear parabolic system involving curl of the unknown vector field, subjected to the boundary condition of prescribing the tangential component of the soluti
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ea78652673914d9c06eda98dfe7ab342
https://doi.org/10.1007/s41808-021-00119-8
https://doi.org/10.1007/s41808-021-00119-8
Publikováno v:
Applications of Mathematics. 67:431-444
In this paper we propose a new concept of quasi-uniform monotonicity weaker than the uniform monotonicity which has been developed in the study of nonlinear operator equation Au = b. We prove that if A is a quasi-uniformly monotone and hemi-continuou
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2a2a6179bc71c723911162d4622de785
https://doi.org/10.21136/am.2021.0365-20
https://doi.org/10.21136/am.2021.0365-20
Autor:
Xiu Ye, Shangyou Zhang
Publikováno v:
Applied Numerical Mathematics. 167:211-217
In this short paper, we introduce an efficient finite element method for solving the Stokes equations based on a divergence free H ( div ) element. The strong curl of C 0 - P k + 1 basis functions forms a basis of the divergence-free subspace of the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e730af23fe62ac8c85984ed07c9eb9f7
https://doi.org/10.1016/j.apnum.2021.05.005
https://doi.org/10.1016/j.apnum.2021.05.005
Publikováno v:
Mathematical Models and Methods in Applied Sciences. 31:1951-1986
In this paper, we propose an [Formula: see text]-conforming quadrilateral spectral element method to solve quad-curl problems. Starting with generalized Jacobi polynomials, we first introduce quasi-orthogonal polynomial systems for vector fields over
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e2fa8b3d1b0cd81e9ea99c6445d167bd
https://doi.org/10.1142/s0218202521500433
https://doi.org/10.1142/s0218202521500433