Results 181 to 190 of about 197,799 (280)

A Novel Conjugated Octupole–Quadrupole Ion Guide Achieving High Transmission

Rapid Communications in Mass Spectrometry, Volume 39, Issue 24, 30 December 2025.
ABSTRACT Rationale Ion transmission efficiency from the atmospheric pressure ion source to the vacuum is critical for the sensitivity of mass spectrometers. In this study, we developed a novel conjugated octupole–quadrupole ion guide—the 8–4 pole ion guide—that achieves high transmission efficiency.
Masuyuki Sugiyama, Hideki Hasegawa, Yuichiro Hashimoto   +2 more
wiley   +1 more source

Existence of global strong solution for the compressible Navier–Stokes equations with degenerate viscosity coefficients in 1D [PDF]

, 2018
Boris Haspot
openalex   +1 more source

The Dominant Role of Crustal Fields in Structuring Electromagnetic Environment Within the Martian Dayside Magnetosphere

Geophysical Research Letters, Volume 52, Issue 24, 28 December 2025.
Abstract Although Mars lacks an intrinsic global dipole magnetic field, the existence of crustal magnetic anomalies in the southern hemisphere causes the Martian magnetosphere to have the hybrid characteristics combining Venus‐like induced and Earth‐like intrinsic types.
Shibang Li, Haoyu Lu, Jinbin Cao, Nihan Chen, Yihui Song, Jianxuan Wang, Yuchen Cao, Jianing Zhao, Qimeng Wang   +8 more
wiley   +1 more source

Euler and Navier-Stokes equations on the hyperbolic plane. [PDF]

Proc Natl Acad Sci U S A, 2012
Khesin B, Misiolek G.
europepmc   +1 more source

Strong and periodic solutions of Navier-Stokes equations, in 2D, with non-local viscosity

, 2022
Jorge Ferreira, João Paulo Andrade, Willian S. Panni, Mohammad Shahrouzi   +3 more
openalex   +1 more source

Horseshoe‐Shaped Vortices Accompanied With Breaking of Upward Propagating Gravity Waves and Their Relation to Mean‐Flow Acceleration

Journal of Geophysical Research: Atmospheres, Volume 130, Issue 24, 28 December 2025.
Abstract Breaking gravity waves (GWs) are a major source of turbulence and momentum deposition in the middle atmosphere. In spite of the importance of this phenomenon, the small‐scale vortex structures associated with wave breaking remain poorly documented under realistic conditions.
M. Kohma, K. Sato, D. C. Fritts, T. S. Lund   +3 more
wiley   +1 more source

Efficient Hyperreduction for Large‐Scale Problems: Exploiting Reducible Constraint Manifolds in Empirical Quadrature Procedure

International Journal for Numerical Methods in Engineering, Volume 126, Issue 23, 15 December 2025.
ABSTRACT We develop efficient hyperreduction methods for projection‐based model reduction of nonlinear partial differential equations (PDEs) with a large number of parameters and/or large parametric extents. Our formulation is based on the empirical quadrature procedure (EQP), which solves an optimization problem that involves “residual‐matching ...
Adrian Humphry, Masayuki Yano
wiley   +1 more source

A semi-implicit augmented IIM for Navier-Stokes equations with open, traction, or free boundary conditions. [PDF]

J Comput Phys, 2015
Li Z, Xiao L, Cai Q, Zhao H, Luo R.
europepmc   +1 more source

Comparison Of Two Types Of Preconditioners For Stokes And Linearized Navier-Stokes Equations

, 2013
Ze-Jun Hu, Ting‐Zhu Huang, Ning-Bo Tan
openalex   +2 more sources

On the existence of approximate problems that preserve the type of a bifurcation point of a nonlinear problem. Application to the stationary Navier-Stokes equations [PDF]

Cătălin - Liviu Bichir
openalex   +1 more source