Results 51 to 60 of about 236 (142)

Multiple Wedges Diffraction in Propagation Problems using the Generalized Wiener-Hopf Technique

2019 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting, 2019
In this work, in order to accurately predict diffraction phenomena in propagation problems, we introduce the analysis of the scattering of multiple wedges using the semianalytical method known as Generalized Wiener-Hopf Technique. The analysis is of interest to correctly model path-loss in real-life scenarios for wireless communications.
Daniele V., Lombardi G., Zich R. S.
openaire   +2 more sources

The Wiener-Hopf Equation Technique for Solving General Nonlinear Regularized Nonconvex Variational Inequalities [PDF]

Fixed Point Theory and Applications, 2011
AbstractIn this paper, we introduce and study some new classes of extended general nonlinear regularized non-convex variational inequalities and the extended general nonconvex Wiener-Hopf equations, and by the projection operator technique, we establish the equivalence between the extended general nonlinear regularized nonconvex variational ...
Balooee, Javad, Cho, Yeol, Kang, Mee
openaire   +2 more sources

Evaluating the influence of marine protected areas on surf zone fish

Conservation Biology, Volume 38, Issue 6, December 2024.
Abstract Marine protected areas (MPAs) globally serve conservation and fisheries management goals, generating positive effects in some marine ecosystems. Surf zones and sandy beaches, critical ecotones bridging land and sea, play a pivotal role in the life cycles of numerous fish species and serve as prime areas for subsistence and recreational fishing.
M. L. Marraffini, S. L. Hamilton, J. R. Marin Jarrin, M. Ladd, G. Koval, J. R. Madden, I. Mangino, L. M. Parker, K. A. Emery, K. Terhaar, D. M. Hubbard, R. J. Miller, J. E. Dugan   +12 more
wiley   +1 more source

Long‐time existence of Brownian motion on configurations of two landmarks

Bulletin of the London Mathematical Society, Volume 56, Issue 5, Page 1658-1679, May 2024.
Abstract We study Brownian motion on the space of distinct landmarks in Rd$\mathbb {R}^d$, considered as a homogeneous space with a Riemannian metric inherited from a right‐invariant metric on the diffeomorphism group. As of yet, there is no proof of long‐time existence of this process, despite its fundamental importance in statistical shape analysis ...
Karen Habermann, Philipp Harms, Stefan Sommer   +2 more
wiley   +1 more source

Response Analysis of Projectile System Under Gaussian Noise Excitation Using Path Integral Method

International Journal of Aerospace Engineering, Volume 2024, Issue 1, 2024.
During flight, projectiles are subject to uncertainties such as aerodynamic forces, wind gusts, and measurement errors; all of which significantly affect their stability and accuracy. As a result, studying the response of projectile systems under stochastic excitation is essential.
Liang Wang, Xinyi Li, Jiahui Peng, Zhonghua Zhang, Shuangqi Dong, Tuo Han   +5 more
wiley   +1 more source

Orthotropic strip with central semi-infinite crack under arbitrary loads applied far apart from the crack tip

Vestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, 2019
The exact analytical solution has been obtained for a problem of orthotropic strip with central semi-infinite crack loaded normally with self-balanced system of forces applied far enough from the crack tip to be considered as applied at infinity.
Konstantin B. Ustinov, Dmitry S. Lisovenko, Alexander Victorovich Chentsov   +2 more
doaj  

Wiener-Hopf solution of the free energy TBA problem and instanton sectors in the O(3) sigma model

Journal of High Energy Physics
Perturbation theory in asymptotically free quantum field theories is asymptotic. The factorially growing perturbative coefficients carry information about non-perturbative corrections, which can be related to renormalons and instantons.
Zoltán Bajnok, János Balog, István Vona   +2 more
doaj   +1 more source

Electrodynamics of Carbon Nanotubes with Non-Local Surface Conductivity

Applied Sciences
A new framework that can be utilized for the electrodynamics of carbon nanotubes (CNTs) with non-local surface conductivity (spatial dispersion) is presented.
Tomer Berghaus, Touvia Miloh, Oded Gottlieb, Gregory Ya. Slepyan   +3 more
doaj   +1 more source

Generalized set-valued variational inequalities

Le Matematiche, 1997
In this paper, we introduce and study a new class of variational inequalities, which is called generalized set-valued variational inequality. The projection technique is used to establish the equivalence among generalized set-valued variational ...
Muhammad Aslam Noor
doaj  

A Periodic Extension to the Fokas Method for Acoustic Scattering by an Infinite Grating

Acoustics
The Fokas method (also known as the unified transform method) is used to investigate acoustic scattering by thin, infinite grating by extending the methodology to apply to spatially periodic domains. Infinite grating is used to model a perforated screen,
Shiza B. Naqvi, Lorna J. Ayton
doaj   +1 more source