Results 141 to 150 of about 241,236 (258)

Skyrmions in Scalar Fields of Non‐Hermitian Optical Microcavities: Spontaneous Formation, Nonlinear Control, and Optical Forces

Nanophotonics, Volume 15, Issue 19, 13 October 2026.
Skyrmion topology is shown to emerge spontaneously in scalar fields of driven‐dissipative optical microcavities, without externally imposed phase structure. In exciton‐polariton condensates, non‐Hermitian flow generates isolated Skyrmions and self‐organized Skyrmion lattices, while optical nonlinearities enable switching and reconfiguration of their ...
Jan Wingenbach, Roman Lebs, Xuekai Ma, Ewan M. Wright, Nai H. Kwong, Rolf Binder, Harald Giessen, Stefan Schumacher   +7 more
wiley   +1 more source

Nearly Einstein manifolds

Novi Sad Journal of Mathematics, 2015
Summary: The object of this paper is to define and study a new type of non-flat Riemannian manifolds called nearly Einstein manifolds. The notion of this nearly Einstein manifold has been established by an example and an existence theorem. Some geometric properties are obtained.
openaire   +1 more source

Automation and Active Learning for the Multi‐Objective Optimization of Antibody Formulations

Advanced Science, Volume 13, Issue 55, 5 October 2026.
Successful antibody formulation necessitates balancing factors such as thermal stability, colloidal stability, and viscosity across a vast excipient design space. This work integrates robotic liquid handling, high‐throughput biophysical characterization, and multi‐objective Bayesian optimization in an iterative closed‐loop Design‐Build‐Test‐Learn cycle.
D. Christopher Radford, Matthew Tamasi, Elena Di Mare, Adam J. Gormley   +3 more
wiley   +1 more source

On the Limits of a Space‐Time Description and the Physical Meaning of Phase Space in a Nonlocal Continuum

Annalen der Physik, Volume 538, Issue 10, October 2026.
Nonlocal quantum field theory predicts a finite phase‐space resolution, so even highly squeezed quantum states cannot be localized beyond a fundamental nonlocal limit, providing a potential experimental signature of nonlocality. ABSTRACT In a previous paper we derived an uncertainty relation for nonlocal fields by showing that the physical localization
E. J. Thompson
wiley   +1 more source

Kählerity of Einstein four-manifolds

Mathematische Zeitschrift
We prove that a closed oriented Einstein four-manifold is either anti-self-dual or (after passing to a double Riemann cover if necessary) Kähler-Einstein, provided that $λ_2 \geq -\frac{S}{12}$, where $λ_2$ is the middle eigenvalue of the self-dual Weyl tensor $W^+$ and $S$ is the scalar curvature.
Li, Xiaolong, Zhang, Yongjia
openaire   +4 more sources

From Laboratory Performance to Industrial Reality: A Review Fuzing Proton Exchange Membrane Electrolyzer Component Degradation and Impact on Levelized Cost of Hydrogen

ChemElectroChem, Volume 13, Issue 19, 1 October 2026.
A comprehensive review bridging laboratory innovation with industrial‐scale PEM electrolyzer challenges, focusing on component degradation mechanisms and their direct impact on the levelized cost of hydrogen. This work highlights the critical need for scalable, durable designs and standardized testing to accelerate the green hydrogen economy.
Yuanye Huang, Sha Li, Carolin Sophie Igel, Peter Bouwman   +3 more
wiley   +1 more source

LP-Kenmotsu Manifolds Admitting Bach Almost Solitons

Universal Journal of Mathematics and Applications
For a Lorentzian para-Kenmotsu manifold of dimension $m$ (briefly, ${(LPK)_{m}}$) admitting Bach almost soliton $(g,\zeta,\lambda)$, we explored the characteristics of the norm of Ricci operator. Besides, we gave the necessary condition for ${(LPK)_{m}}
Mohd Bilal, Vindhyachal Singh Yadav, Abhinav Verma, Rajendra Prasad, Abdul Haseeb   +4 more
doaj   +1 more source

Stable Isotope Labeling to Track De Novo Fatty Acid Synthesis in Mouse Cartilage‐Enriched Joint Tissue In Vivo: A Practical Workflow

Journal of Orthopaedic Research, Volume 44, Issue 10, October 2026.
ABSTRACT Cartilage is traditionally viewed as a metabolically quiescent tissue that relies primarily on exogenous lipid uptake to meet its energetic and structural demands. However, increasing evidence suggests that chondrocytes exhibit metabolically active behaviors, particularly under aging and pathological conditions.
Shadi Moradi, Anupama Binoy, Shouan Zhu
wiley   +1 more source

AInstein: numerical Einstein metrics via machine learning

AI for Science
A new semi-supervised machine learning package is introduced which successfully solves the Euclidean vacuum Einstein equations with a cosmological constant, without any symmetry assumptions.
Edward Hirst, Tancredi Schettini Gherardini, Alexander G Stapleton   +2 more
doaj   +1 more source

Coherent Stokes Raman Scattering for Simultaneous Measurement of CO2 and CH4 Temperatures

Journal of Raman Spectroscopy, Volume 57, Issue 10, Page 1644-1653, October 2026.
A three‐beam hybrid fs/ps CSRS method is employed to excite the rovibrational transitions in the Fermi‐dyad of CO 2 and the v2 mode of CH 4. Time‐domain spectroscopic models are developed to extract the fuel and flame temperature profiles from experimental CH 4 and CO 2 spectra in a diffusion flame.
Alexander M. Warner, Robert P. Lucht, Rohan M. Gejji, Carson D. Slabaugh   +3 more
wiley   +1 more source