Zobrazeno 1 - 10
of 530
pro vyhledávání: '"Borges,Carlos"'
Multiple scattering methods are widely used to reduce the computational complexity of acoustic or electromagnetic scattering problems when waves propagate through media containing many identical inclusions. Historically, this numerical technique has
Externí odkaz:
http://arxiv.org/abs/2408.02881
Autor:
Borges, Carlos F.
We develop a very simple compensated scheme for computing very accurate Givens rotations. The approach is significantly more straightforward than the one in \cite{borges2021fast}, and the derivation leads to a very satisfying algorithm whereby a naiv
Externí odkaz:
http://arxiv.org/abs/2406.02750
Inverse obstacle scattering is the recovery of an obstacle boundary from the scattering data produced by incident waves. This shape recovery can be done by iteratively solving a PDE-constrained optimization problem for the obstacle boundary. While it
Externí odkaz:
http://arxiv.org/abs/2308.00559
Publikováno v:
Journal of Computational Physics, 488, 112243 (2023)
We consider the inverse acoustic obstacle problem for sound-soft star-shaped obstacles in two dimensions wherein the boundary of the obstacle is determined from measurements of the scattered field at a collection of receivers outside the object. One
Externí odkaz:
http://arxiv.org/abs/2212.08736
The acoustic inverse obstacle scattering problem consists of determining the shape of a domain from measurements of the scattered far field due to some set of incident fields (probes). For a penetrable object with known sound speed, this can be accom
Externí odkaz:
http://arxiv.org/abs/2210.11607
Autor:
Sharifi, Husham, Bertini, Christopher D., Alkhunaizi, Mansour, Hernandez, Maria, Musa, Zayan, Borges, Carlos, Turk, Ihsan, Bashoura, Lara, Dickey, Burton F., Cheng, Guang-Shing, Yanik, Gregory, Galban, Craig J., Guo, Huawei Henry, Godoy, Myrna C. B., Reinhardt, Joseph M., Hoffman, Eric A., Castro, Mario, Rondon, Gabriela, Alousi, Amin M., Champlin, Richard E., Shpall, Elizabeth J., Lu, Ying, Peterson, Samuel, Datta, Keshav, Nicolls, Mark R., Hsu, Joe, Sheshadri, Ajay
Publikováno v:
In Blood Advances 8 October 2024 8(19):5156-5165
Autor:
Biguino, Beatriz, Antunes, Carlos, Dias, João Miguel, Haigh, Ivan D., Cruz, Joana P.C., Borges, Carlos, Palma, Carla, Pereira, Humberto, Picado, Ana, Ferreira, Afonso, Brito, Ana C.
Publikováno v:
In Marine Pollution Bulletin October 2024 207
Autor:
Borges, Carlos F.
The reciprocal square root is an important computation for which many sophisticated algorithms exist (see for example \cite{Moroz,863046,863031} and the references therein). A common theme is the use of Newton's method to refine the estimates. In thi
Externí odkaz:
http://arxiv.org/abs/2112.14321
Autor:
Borges, Carlos, Rachh, Manas
We consider the reconstruction of the shape and the impedance function of an obstacle from measurements of the scattered field at receivers outside the object. The data is assumed to be generated by plane waves impinging on the obstacle from multiple
Externí odkaz:
http://arxiv.org/abs/2104.13489