Results 121 to 130 of about 1,120,275 (201)

Anisotropic logarithmic Sobolev inequality with a Gaussian weight and its applications

Electronic Journal of Differential Equations, 2019
In this article we prove a Logarithmic Sobolev type inequality and a Poincare type inequality for functions in the anisotropic Gaussian Sobolev space.
Filomena Feo, Gabriella Paderni
doaj  

Contactless Detection of Giant Helicity‐Dependent Photovoltage in Chiral 2D Perovskites

Small, Volume 22, Issue 54, 25 September 2026.
A novel contactless probe—circularly polarized time‐resolved surface photovoltage spectroscopy is demonstrated to evaluate helicity‐dependent charge separation dynamics without the need for electrical contacts. Application of this novel methodology to chiral 2D perovskites reveals giant transient surface photovoltage anisotropy.
Joanna Dehnel, Ido Zemer, Rawan Hirzalla, Ido Hadar, Igal Levine   +4 more
wiley   +1 more source

A Metric for Quantifying Spatial Heterogeneity in Gridded Atmospheric Fields

Earth and Space Science, Volume 13, Issue 9, September 2026.
Abstract Spatial heterogeneity influences many nonlinear atmospheric processes but it is often described qualitatively or with simple statistical measures that do not capture spatial organization. We introduce a mixing‐oriented metric for gridded fields based on the expected deviation of subdomain means from the global average.
M. Mohebalhojeh, S. Frederick, N. Riemer, M. West   +3 more
wiley   +1 more source

Local well-posedness of the periodic nonlinear Schrödinger equation with a quadratic nonlinearity ū2 in negative Sobolev spaces

, 2023
Liu R.
europepmc   +1 more source

The Concept of the Mixing Index

Water Resources Research, Volume 62, Issue 9, September 2026.
Abstract Many current measures of mixing, such as the statistics of concentration, the scalar dissipation rate, or dilution index, are based on the dilution of a single component or pseudo‐component. Because of this, they miss the influence of numerous conditions that directly change true mixing, such as initial separation of chemically distinct water ...
David A. Benson, Diogo Bolster, Nicholas B. Engdahl   +2 more
wiley   +1 more source

Stokes problem with several types of boundary conditions in an exterior domain

Electronic Journal of Differential Equations, 2013
In this article, we solve the Stokes problem in an exterior domain of $\mathbb{R}^{3}$, with non-standard boundary conditions. Our approach uses weighted Sobolev spaces to prove the existence, uniqueness of weak and strong solutions.
Cherif Amrouche, Mohamed Meslameni
doaj  

Re‐Evaluating the Thermogenic Decarbonation During Large Igneous Provinces Emplacement Using Temperature‐Dependent Thermal Properties

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 9, September 2026.
Abstract Large Igneous Provinces emplacement drives mass extinctions through rapid carbon release, but the relative contributions of magmatic degassing versus thermogenic decarbonation remain debated. Here, we incorporate temperature‐dependent thermal parameters into models of contact metamorphism around intruding sills.
Yan Wang, Jianfeng Yang, Linpei Deng, Liang Zhao   +3 more
wiley   +1 more source

Wavefront sensing at a high‐repetition‐rate X‐ray free‐electron laser

Journal of Synchrotron Radiation, Volume 33, Issue 5, Page 1255-1268, September 2026.
We demonstrate a fast, robust and sensor‐free approach to X‐ray speckle tracking that enables shot‐to‐shot wavefront characterization at high‐repetition‐rate X‐ray free‐electron lasers. Our measurements reveal a hierarchy of wavefront fluctuations indicative of instabilities in the accelerator and beamline optics at the European XFEL.Wavefront ...
Trey Guest, Patrik Vagovič, Luigi Adriano, Johan Bielecki, Sarlota Birnsteinova, Rita Graceffa, Jayanath Koliyadu, Kaye Morgan, Hiiro Moriyama, Daniel Mosko, Grant van Riessen, Kristian Sabol, Tokushi Sato, Peter Szeles, Zane Taylor, Jozef Uličný, Richard Bean, Adrian P. Mancuso, Brian Abbey   +18 more
wiley   +1 more source

Aquifer Microbial Communities Differentially Display Metabolisms Capable of Secondary Effects on Uranium Speciation Across a Former Metal Processing Site

Environmental Microbiology, Volume 28, Issue 9, September 2026.
We performed microbial membership and metabolism measurements across a uranium‐contaminated site's surface and ground waters, then performed analyses relating these metrics to geochemistry at the site. Findings showed variations in the membership, yet mainly similar functional capabilities.
Catherine J. Pettinger, Allondra M. Woods, Raymond H. Johnson, Charles J. Paradis, Erica L.‐W. Majumder   +4 more
wiley   +1 more source

3D Culture Reverses Limbal Niche Cell Replicative Aging via FOSL1 Upregulation

Aging Cell, Volume 25, Issue 9, September 2026.
3D culture reverses LNC replicative aging via FOSL1 upregulation, enhancing mitochondrial function and alleviating oxidative stress. ABSTRACT Limbal niche cells (LNCs) serve as essential regulators of limbal microenvironmental homeostasis and corneal epithelial wound repair, representing a promising therapeutic resource for limbal stem cell deficiency (
Xuying Wang, Shen Li, Zibin Liu, Xinghan Guo, Jiachao Shen, Tianyu Zhou, Shuying Liao, Xiaoyu Huang, Wei Wang, Lingjuan Xu, Xinjie Zang, Guigang Li   +11 more
wiley   +1 more source