Results 71 to 80 of about 5,531 (199)

Fluctuating Interfaces in Barotropic Beta‐Plane Turbulence

Geophysical Research Letters, Volume 53, Issue 9, 16 May 2026.
Abstract Zonal jets manifest themselves as bands with sharp interfaces in the vorticity configuration. We develop an algorithm to track these fluctuating vorticity interfaces and systematically investigate their characteristic spatio‐temporal behaviors.
Sandip Sahoo, Samriddhi Sankar Ray
wiley   +1 more source

Long-range dependencies in heart rate signals- revisited

, 2005
The RR series extracted from human electrocardiogram signal (ECG) is considered as a fractal stochastic process. The manifestation of long-range dependencies is the presence of power laws in scale dependent process characteristics.
Aleksandra Dudkowska, Amaral, Andrzej Rynkiewicz, Ashkenazy, Bacry, Bacry, Bak, Barral, Bassingthwaighte, Benzi, Berg, Costa, Costa, Danuta Makowiec, Falconer, Fauchier, Glass, Glass, Goldberger, Gregory, Havlin, Ivanov, Ivanov, Ivanov, Ivanov, Kantelhardt, Kiyono, Kotani, Lashermes, Lin, Mandelbrot, Mandelbrot, Mandelbrot, Marcin Zwierz, Meyer, Muzy, Muzy, Peng, Peng, Rafał Gała¸ska, Riedi, Schertzer, Stanley, Struzik, Teich, Yamamoto, Yang   +46 more
core   +1 more source

Spectropolarimetric Holographic Multiplexing Metasurface With Super‐High Capacity Empowered by Mechanical Rotation

Nanophotonics, Volume 15, Issue 9, 13 May 2026.
Mechanically reconfigurable metasurfaces enable high‐capacity optical storage and holography due to low cost/complexity. A differentiable inverse design framework maps meta‐atom geometries to multichannel optical responses via deep neural networks. Rotatable cascaded metasurfaces optimized through this pipeline achieve pixel‐level holography with 288 ...
Ting Ma, Xianjin Liu, Qiwen Bao, Bolun Zhang, Jun‐Jun Xiao   +4 more
wiley   +1 more source

Wavelet collocation solution for fully wet semi-spherical porous fin

Partial Differential Equations in Applied Mathematics
Study Focus: In this paper, the thermal behavior of a semi-spherical fin embedded in a porous medium is examined. The heat transfer coefficient is considered to be temperature-dependent and follows a power-law relationship.Modeling Approach: Heat ...
Surjan Singh, Parvinder Kaur, Dinesh Kumar, K.N. Rai   +3 more
doaj   +1 more source

A numerical computation for solving delay and neutral differential equations based on a new modification to the Legendre wavelet method [PDF]

Iranian Journal of Numerical Analysis and Optimization
The goal of this study is to use our suggested generalized Legendre wavelet method to solve delay and equations of neutral differential form with pro-portionate delays of different orders.
N.M. El-Shazly, M.A Ramadan
doaj   +1 more source

Spectroscopy and Conformer‐Selective Photoelectron Circular Dichroism of Chiral Molecules

Chemistry – An Asian Journal, Volume 21, Issue 9, 14 May 2026.
Photoelectron circular dichroism (PECD) is a forward–backward asymmetry in the angular distribution of the electrons emitted by a chiral molecule ionized by a circularly polarized light (CPL). Its sensitivity to conformation is studied by one‐photon or resonance‐enhanced two‐photon ionization, the latter being conformer‐selective.
Laurent Nahon, Anne Zehnacker
wiley   +1 more source

Studying interspecific population synchrony: current status and future perspectives

Ecography, Volume 2026, Issue 5, May 2026.
Interspecific population synchrony, or co‐fluctuations in the population dynamics and demographic parameters of different species, is an important ecological phenomenon with major implications for the stability of communities and ecosystems. It is also central in the context of biodiversity loss, as interspecific synchrony can influence how ecological ...
Ragnhild Bjørkås, Ivar Herfindal, Marlène Gamelon, Aline Magdalena Lee   +3 more
wiley   +1 more source

Slepian functions and their use in signal estimation and spectral analysis

, 2009
It is a well-known fact that mathematical functions that are timelimited (or spacelimited) cannot be simultaneously bandlimited (in frequency). Yet the finite precision of measurement and computation unavoidably bandlimits our observation and modeling ...
A Albertella, A Amirbekyan, A Hanssen, A Messiah, A Schuster, AD Chave, AR Edmonds, D Slepian, D Slepian, D Slepian, D Slepian, D Slepian, D Slepian, DA Varshalovich, DB Percival, DJ Thomson, DJ Thomson, DJ Wingham, DL Donoho, DR Cox, E Hivon, EN Gilbert, FA Dahlen, FA Dahlen, FJ Simons, FJ Simons, FJ Simons, G Hinshaw, GD Villiers de, HJ Landau, HJ Landau, HJ Landau, I Daubechies, I Daubechies, I Daubechies, I Daubechies, JR Bond, JS Bendat, K Yao, KS Riedel, L Cohen, L Knox, LP Grishchuk, M Tegmark, M Tegmark, MA Wieczorek, MA Wieczorek, MG Hauser, MZ Nashed, N Sneeuw, P Flandrin, P Xu, P Xu, PJE Peebles, RC Aster, RH Jones, S Mallat, S-C Han, SP Oh, TP Bronez, W Freeden, W Freeden, W Menke, WM Kaula, Y Shkolnisky   +64 more
core   +1 more source

Forward and Adjoint Calculations of Gravitational Potential in Heterogeneous, Aspherical Planets

Earth and Space Science, Volume 13, Issue 5, May 2026.
Abstract We have developed a computational package for the calculation of numerically exact internal and external gravitational potential, its functional derivatives and sensitivity kernels, in an aspherical, heterogeneous planet. We detail our implementation, utilizing a transformation of the Poisson equation into a spherical reference domain, as well
Alex D. C. Myhill, Matthew A. Maitra, David Al‐Attar   +2 more
wiley   +1 more source

Numerical solutions for Volterra integro-differential forms of Lane-Emden equations of first and second kind using Legendre multi-wavelets

Electronic Journal of Differential Equations, 2015
A numerical method based on Legendre multi-wavelets is applied for solving Lane-Emden equations which form Volterra integro-differential equations. The Lane-Emden equations are converted to Volterra integro-differential equations and then are solved ...
Prakash Kumar Sahu, Santanu Saha Ray
doaj