Results 161 to 170 of about 326,006 (283)

Quasi-Simultaneous Detection of Ammonia and Nitrous Oxide by Photoacoustic Phase-Resolved Method: A Proof-of-Concept. [PDF]

Anal Chem
Santos DDS, Mota L, Lima GR, da Matta EC, Alvarenga TL, Bahr MS, Esquef IA, Wolff M, da Silva MG.   +8 more
europepmc   +1 more source

Harbor‐Induced Tidal Salinity Dispersion in Partially Stratified Estuaries

Journal of Geophysical Research: Oceans, Volume 131, Issue 4, April 2026.
Abstract The contribution of tidal trapping to salt dispersion has been well described for well‐mixed estuaries, in terms of barotropic filling and emptying of the traps. How traps contribute to salt dispersion in deeper, partially stratified systems remains underexplored.
D. van Keulen, W. M. Kranenburg, A. J. F. Hoitink   +2 more
wiley   +1 more source

A numerical approach to fractional Volterra-Fredholm integro-differential problems using shifted Chebyshev spectral collocation. [PDF]

Sci Rep
Hamood MM, Sharif AA, Ghadle KP.
europepmc   +1 more source

Bayesian perspective for orientation determination in cryo‐EM with application to structural heterogeneity analysis

Acta Crystallographica Section D, Volume 82, Issue 4, Page 274-294, April 2026.
A Bayesian perspective on orientation estimation in cryo‐EM is presented, with the minimum mean‐square error estimator outperforming standard cross‐correlation‐based approaches, particularly under challenging low signal‐to‐noise conditions. We demonstrate that improved orientation estimation has a decisive impact on 3D reconstruction quality and ...
Sheng Xu, Amnon Balanov, Amit Singer, Tamir Bendory   +3 more
wiley   +1 more source

Immersed isogeometric analysis with boundary conformal quadrature for finite deformation elasticity. [PDF]

Arch Appl Mech
Elbadry YT, Antolín P, Weeger O.
europepmc   +1 more source

Homogenization With Guaranteed Bounds via Primal‐Dual Physically Informed Neural Networks

International Journal for Numerical Methods in Engineering, Volume 127, Issue 6, 30 March 2026.
ABSTRACT Physics‐informed neural networks (PINNs) have shown promise in solving partial differential equations (PDEs) relevant to multiscale modeling, but they often fail when applied to materials with discontinuous coefficients, such as media with piecewise constant properties. This paper introduces a dual formulation for the PINN framework to improve
Liya Gaynutdinova, Ondřej Rokoš, Martin Doškář, Ivana Pultarová   +3 more
wiley   +1 more source

Tutorial for Modeling Delays in Biological Systems in the NONMEM Software. [PDF]

CPT Pharmacometrics Syst Pharmacol
Bauer RJ, Krzyzanski W.
europepmc   +1 more source

Algebraic Multigrid Based Preconditioning Approaches for Generalized Continuum Models and Indirect Displacement Control Techniques

International Journal for Numerical Methods in Engineering, Volume 127, Issue 6, 30 March 2026.
ABSTRACT The contribution deals with algebraic multigrid (AMG) based preconditioning methods for the iterative solution of a coupled linear system of equations arising in numerical simulations of failure of quasi‐brittle materials using generalized continuum approaches.
Nasser Alkmim, Peter Gamnitzer, Alexander Dummer, Matthias Neuner, Günter Hofstetter   +4 more
wiley   +1 more source

In-Plane Vibration Analysis of Rectangular Plates with Elastically Restrained Boundaries Using Differential Quadrature Method of Variational Weak Form. [PDF]

Materials (Basel)
Wang X, Zhou W, Yi S, Li S.
europepmc   +1 more source

A Southern Ocean Multidecadal Oscillator Forced by Deep Convection

Geophysical Research Letters, Volume 53, Issue 6, 28 March 2026.
Abstract Some climate models exhibit multidecadal‐to‐centennial variability of the Southern Ocean (SO) associated with open‐ocean polynyas and deep convection. We characterize the SO variability of the Community Earth System Model (version 1) under preindustrial conditions run with two different ocean resolutions, low‐resolution (∼1°) and high ...
Robert R. Ford, Brian E. J. Rose
wiley   +1 more source