Zobrazeno 1 - 10
of 4 348
pro vyhledávání: '"A. Spivack"'
Autor:
Spivack, Mark, Spivack, Orsola Rath
We discuss here the direct and inverse problems for wave propagation in a waveguide with rough internal surface and arbitrary mean shape. The high degree of multiple scattering inside the waveguide poses significant challenges both for the forward co
Externí odkaz:
http://arxiv.org/abs/2406.06336
Physics--informed neural networks (PINN) have shown their potential in solving both direct and inverse problems of partial differential equations. In this paper, we introduce a PINN-based deep learning approach to reconstruct one-dimensional rough su
Externí odkaz:
http://arxiv.org/abs/2404.14984
Recent studies of the applications of conversational AI tools, such as chatbots powered by large language models, to complex real-world knowledge work have shown limitations related to reasoning and multi-step problem solving. Specifically, while exi
Externí odkaz:
http://arxiv.org/abs/2403.02164
The paper develops a method for recovering a one-dimensional rough surface profile from scattered wave field, using a single receiver and repeated measurements when the surface is moving with respect to source and receiver. This extends a previously
Externí odkaz:
http://arxiv.org/abs/2312.12070
Publikováno v:
IET Science, Measurement & Technology, Vol 18, Iss 7, Pp 361-372 (2024)
Abstract This article develops a method for recovering a one‐dimensional rough surface profile from scattered wave field, using a single receiver and repeated measurements when the surface is moving with respect to source and receiver. This extends
Externí odkaz:
https://doaj.org/article/8a2b9745c5f240e29f052db2a37224bc
Autor:
Olsida Zefi, Spencer Waldman, Ava Marsh, Miao Kevin Shi, Yosef Sonbolian, Batbayar Khulan, Taha Siddiqui, Aditi Desai, Dhruv Patel, Aham Okorozo, Samer Khader, Jay Dobkin, Ali Sadoughi, Chirag Shah, Simon Spivack, Yakov Peter
Publikováno v:
Respiratory Research, Vol 25, Iss 1, Pp 1-13 (2024)
Abstract Rational Basal cells (BCs) are bronchial progenitor/stem cells that can regenerate injured airway that, in smokers, may undergo malignant transformation. As a model for early stages of lung carcinogenesis, we set out to characterize cytologi
Externí odkaz:
https://doaj.org/article/5566d0fb9c47490797203d68d1b1f30e
Publikováno v:
New J. Phys. 24, 063023 (2022)
Geometrically frustrated assembly has emerged as an attractive paradigm for understanding and engineering assemblies with self-limiting, finite equilibrium dimensions. We propose and study a novel 2D particle based on a so-called "warped jigsaw" (WJ)
Externí odkaz:
http://arxiv.org/abs/2204.04184
Autor:
Stephanie Spivack, Jeremy A.W. Gold, Shawn R. Lockhart, Priyanka Anand, Laura A.S. Quilter, Dallas J. Smith, Briana Bowen, Jane M. Gould, Ahmed Eltokhy, Ahmed Gamal, Mauricio Retuerto, Thomas S. McCormick, Mahmoud A. Ghannoum
Publikováno v:
Emerging Infectious Diseases, Vol 30, Iss 4, Pp 807-809 (2024)
We describe a case of tinea genitalis in an immunocompetent woman in Pennsylvania, USA. Infection was caused by Trichophyton indotineae potentially acquired through sexual contact. The fungus was resistant to terbinafine (first-line antifungal) but i
Externí odkaz:
https://doaj.org/article/72c5999500334e09b7b29670097fbe2a
Autor:
Megan I. Mitchell, Iddo Z. Ben‐Dov, Kenny Ye, Christina Liu, Miao Shi, Ali Sadoughi, Chirag Shah, Taha Siddiqui, Aham Okorozo, Martin Gutierrez, Rashmi Unawane, Lisa Biamonte, Kaushal Parikh, Simon Spivack, Olivier Loudig
Publikováno v:
Journal of Extracellular Vesicles, Vol 13, Iss 4, Pp n/a-n/a (2024)
Abstract Lung diseases, including lung cancer, are rising causes of global mortality. Despite novel imaging technologies and the development of biomarker assays, the detection of lung cancer remains a significant challenge. However, the lung communic
Externí odkaz:
https://doaj.org/article/efbe999c8abc43639d480cd3693fb23e
Publikováno v:
Progress In Electromagnetics Research M, Vol. 100, 237-245, 2021
A method is given for evaluating electromagnetic scattering by an irregular surface with spatially-varying impedance. This uses an operator expansion with respect to impedance variation and allows examination of its effects and the resulting modifica
Externí odkaz:
http://arxiv.org/abs/2001.10934