Results 141 to 150 of about 2,016,598 (232)

Chorus Element Repetition: Roles of Energetic Electron Injection and Nonlinear Wave Growth

Geophysical Research Letters, Volume 53, Issue 18, 28 September 2026.
Abstract Chorus waves are coherent whistler‐mode emissions in Earth’s magnetosphere and play a key role in the acceleration and loss of radiation belt electrons. Their spectra commonly consist of discrete and repetitive elements, yet the mechanism governing this repetition is not fully understood.
Huayue Chen, Xueyi Wang, Lunjin Chen, Jiabei He, Zhiyang Xia, Rui Chen   +5 more
wiley   +1 more source

Satellite‐Based Global Assessment of Solar Resource Stability

Geophysical Research Letters, Volume 53, Issue 17, 16 September 2026.
Abstract Satellite spatial smoothing complicates comparisons of solar variability between gridded products and point measurements. We introduce the Stability Deviation Index (SDI), a bounded composite of solar intensity and intraday variability. Applied independently to 69 BSRN stations and co‐located CERES grid cells, SDI shows strong cross‐platform ...
Ning Lu, Jun Qin
wiley   +1 more source

Dynamical study of optical soliton solutions to the Lakshmanan-Porsezian-Daniel equation by using [Formula: see text]-model expansion approach. [PDF]

Sci Rep
Alharthi MR, Inayat M, Abbas M, Birhanu A, Yousaf MZ, El-Zahar ER.   +5 more
europepmc   +1 more source

On Compressible Fluid Flows of Forchheimer‐Type in Rotating Heterogeneous Porous Media

Mathematical Methods in the Applied Sciences, Volume 49, Issue 13, Page 15010-15055, 15 September 2026.
ABSTRACT We study the dynamics of compressible fluids in rotating heterogeneous porous media. The fluid flow is of Forchheimer‐type and is subject to a mixed mass and volumetric flux boundary condition. The governing equations are reduced to a nonlinear partial differential equation for the pseudo‐pressure.
Emine Celik, Luan Hoang, Thinh Kieu
wiley   +1 more source

Application of NMPC in the processing of Wolter-I grazing incident mirrors. [PDF]

Sci Rep
Ding S, Yao S, Sun L, Li J, Zhou H.
europepmc   +1 more source

Toward Coherent Polaritonic Devices Operating at Room Temperature

Nanophotonics, Volume 15, Issue 17, 11 September 2026.
Polariton condensate formation and long‐range coherent transport is demonstrated using molecular exciton polaritons at room temperature (left). Waveguides and related photonic structures, such as Y‐splitters and interferometers, are realized via a focused ion beam etching of the planar microcavity. Coherent propagation of the condensate is demonstrated
Addhyaya Sharma, Ezra Bader, Ravindra K. Yadav, Juan Carlos Obeso Jureidini, Michael Reitz, Daegwang Choi, Rishabh Kaurav, Joel Yuen‐Zhou, Vinod M. Menon   +8 more
wiley   +1 more source

Existence of variational solutions to doubly nonlinear systems in nondecreasing domains. [PDF]

J Evol Equ
Schätzler L, Scheven C, Siltakoski J, Stanko C.   +3 more
europepmc   +1 more source

Reconfigurable Terahertz Multi‐Harmonic Dual‐Combs

Nanophotonics, Volume 15, Issue 17, 11 September 2026.
Terahertz dual‐comb spectroscopy requires precise control of repetition frequencies. A reconfigurable dual‐comb system is realized on a single self‐detected quantum cascade laser platform, where harmonic order serves as a new tuning parameter. Switching among fundamental and harmonic states enables flexible multi‐heterodyne down‐conversion without ...
Xuhong Ma, Zhiwei Qin, Xianglong Bi, Ziping Li, Wenjian Wan, Binbin Liu, Guibin Liu, Yue Pan, Yanming Lu, Hua Li   +9 more
wiley   +1 more source

Nonlinear flexibility effects on flight dynamics of high-aspect-ratio wings. [PDF]

J Eng Appl Sci
Tantaroudas ND, Karachalios I.
europepmc   +1 more source

Adaptive Observer for Coupled Wave PDE and Infinite ODE With Sampled Data and Unknown Input: Application to Brain Hemodynamics Estimation

International Journal of Adaptive Control and Signal Processing, Volume 40, Issue 9, Page 1932-1944, September 2026.
This article proposes a convergent adaptive observer for a damped wave PDE and an infinite‐dimensional ODE coupled in cascade using sampled‐in‐space ODE state measurements. The proposed observer estimates the distributed states of the PDE and ODE along with unknown PDE parameters and spatial input.
Zehor Belkhatir, Sarah Mechhoud, Taous‐Meriem Laleg‐Kirati   +2 more
wiley   +1 more source