Results 161 to 170 of about 2,003,558 (249)

Fine‐tuning ab initio XANES spectra calculations using the Bayesian optimization algorithm

Journal of Synchrotron Radiation, Volume 33, Issue 5, Page 1455-1466, September 2026.
A Bayesian optimization technique is used to tune the FEFF and FDMNES packages and to improve matching between theoretical and experimental spectra. The tests were performed on monometallic Ni, Fe and Pd K‐edge XANES spectra using several different spectrum similarity metrics.Theoretical modeling of X‐ray absorption near‐edge structure (XANES) spectra ...
Andrey A. Sapronov, Dmitry E. Doronkin, Jan-Dierk Grunwaldt   +2 more
wiley   +1 more source

The D1-triangulation in simplicial variable dimension algorithms for computing solutions of nonlinear equations [PDF]

Nonlinear ...
Dang, C., Talman, A.J.J.
core  

A Hydrodynamics Formulation for a Nonlinear Dirac Equation

We derive a hydrodynamics formulation for a modified Dirac equation with a nonlinear mass term that preserves the homogeneity of the original Dirac equation. The nonlinear Dirac equation admits a symmetric split into the left and right-handed spinor components. It is formulated using Clifford algebra tools.
Gavarró, Joan Morrill i, Westdickenberg, Michael   +1 more
openaire   +2 more sources

Numerical Evidence of Invariance of Turbulence Dissipation Rate in Breaking Waves

Geophysical Research Letters, Volume 53, Issue 16, 28 August 2026.
Abstract We perform direct numerical simulations to verify the hypothesis of invariance of the turbulence dissipation rate, proposed by Deane, Stokes, and Callaghan (2016, https://doi.org/10.1175/jpo‐d‐14‐0187.1) based on their laboratory breaking wave experiments.
Umberto C. Bitencourt, Saswata Basak, Grant B. Deane, M. Dale Stokes, Anqing Xuan, Han Liu, Lian Shen   +6 more
wiley   +1 more source

Low-Threshold Optical Bistability in Detuned DBR Heterostructures Integrated with Dirac Semimetals. [PDF]

Nanomaterials (Basel)
Wu Y, Hu J, Wu W, Wang Y.
europepmc   +1 more source

INITIAL VALUE PROBLEMS FOR NONLINEAR DIFFERENTIAL EQUATIONS SOLVED BY DIFFERENTIAL TRANSFORM METHOD [PDF]

The notion of differential transform was firstly introduced and applied to electrical circuits by J. Zhou, [4]. In the present paper we apply the differential transform method to solve initial values problems for nonlinear differential equations.
Flavia-Dalia FRUMOSU, Mircea CÎRNU
core  

Gate-Tunable Floquet Weyl Photon Emission from Topological Dirac Semimetal Cd₃As₂. [PDF]

Adv Mater
Mishra SS, Tan TC, Gupta M, Xiu F, Singh R.   +4 more
europepmc   +1 more source

Two-color harmonic spectroscopy of ultrafast Dirac electron dynamics. [PDF]

Nat Commun
Chen Z, Granados C, Uzner E, Nisim I, Kroeger D, Neufeld O, Ciappina MF, Krüger M.   +7 more
europepmc   +1 more source

The failure of the Ehlers-Kundt conjecture in the impulsive case. [PDF]

Gen Relativ Gravit
Frauenberger ML, Grant JDE, Steinbauer R.   +2 more
europepmc   +1 more source

Dynamic Behavior of Mass Sensor Based on Switchable Dual-Mode Composite Strips. [PDF]

Sensors (Basel)
Xu Y, Bi H.
europepmc   +1 more source