Results 111 to 120 of about 2,747 (213)
Magnetic Resonance in Chemistry, Volume 64, Issue 8, Page 711-728, August 2026.A new stopped‐flow instrument allows kinetic measurements of reactions 10 milliseconds after initiating them by mixing in a flow cell inserted into a standard NMR probe and spectrometer. High‐speed video, pressure and NMR line‐shape data are used to characterise mixing and stopping, and a protodeboronation reaction with a 5‐millisecond half‐life used ...
Andrew M. R. Hall +6 more
wiley +1 more source
Basins of Attraction and Escape in Pendulum‐Type Potentials with Quadratic Air Drag
ZAMM - Journal of Applied Mathematics and Mechanics / Zeitschrift für Angewandte Mathematik und Mechanik, Volume 106, Issue 8, August 2026.ABSTRACT Quadratic air drag is a common dissipative mechanism at moderate to high velocities, yet in nonlinear one‐degree‐of‐freedom systems, it typically blocks closed‐form solutions and energy‐based phase‐plane partitions. We study the autonomous class ẍ+α(x)|ẋ|ẋ+β(x)sgn(ẋ)+V′(x)=0,$$\begin{equation*} \ddot{x}+\alpha (x)\,|\dot{x}|\,\dot{x}+\beta
Attila Genda +2 more
wiley +1 more source
Empirical Assessment of Storm‐Time Thermospheric Density Inversion Methods From LEO POD Data
Earth and Space Science, Volume 13, Issue 8, August 2026.Abstract Thermospheric mass density is one of the largest sources of operational uncertainty for spacecraft in low Earth orbit, particularly during geomagnetic storms. The growing population of Global Navigation Satellite System‐equipped satellites presents a data set of opportunity: precise orbit determination (POD) data streams can be used to ...
Charles Constant +4 more
wiley +1 more source
Finite element simulations of ballistic impact on monolithic glass
Journal of the Korean Society of Mechanical Technology, 2014 null Bonghwan Kim +2 more
openaire +1 more source
Orbital Decay of the Three SNIPE CubeSats During the Super Geomagnetic Storm in May 2024
Space Weather, Volume 24, Issue 8, August 2026.Abstract The Mother's Day (Gannon) geomagnetic superstorm of May 2024 produced extreme thermospheric heating and expansion, resulting in enhanced atmospheric drag on low Earth orbiting (LEO) satellites. We investigate storm‐time thermospheric drag and density variability using three satellites of the Small‐scale magNetospheric and Ionospheric Plasma ...
Hosub Song +8 more
wiley +1 more source
Merged Interplanetary Data From L1: MIDL
Space Weather, Volume 24, Issue 8, August 2026.Abstract The availability and accuracy of upstream solar wind conditions are critical for solar wind—magnetosphere coupling studies, whether based on observations or numerical models and simulations. We present the Merged Interplanetary Data from L1 (MIDL), which merges 1‐min magnetic field and plasma observations from ACE, DSCOVR, and Wind through a ...
C. C. DiMarco, G. Tóth, T. I. Pulkkinen
wiley +1 more source
Tetragonal distortion of the multiferroic compound α‐LiFe5O8 from first‐principles calculations
Journal of Applied Crystallography, Volume 59, Issue 4, Page 1307-1318, August 2026.First‐principles calculations suggest the tetragonal space group P43212 for the multiferroic compound α‐LiFe5O8, with a direct band gap smaller than that in its widely known cubic space group P4332. The tetragonal lattice distortion a > c is explained by relatively strong antiferromagnetic exchange interactions parallel to the c axis and by Fe–O–Fe ...
Yaoshi Cheng, So-Hyun Park
wiley +1 more source
Muscle Mitochondrial Oxidative Capacity and Cognitive Decline Over up to a Decade: Sex Differences
Aging Cell, Volume 25, Issue 8, August 2026.Skeletal muscle mitochondrial oxidative capacity is linked to cognition and predicts cognitive decline primarily in men. Underlying mechanisms appear to differ by sex, likely through a metabolic‐drive pathway in men and a hematologic‐inflammatory pathway in women.
Qu Tian +2 more
wiley +1 more source
Atomic Simulations of Volatile Coverage on Silicate Surfaces
Geophysical Research Letters, Volume 53, Issue 14, 28 July 2026.Abstract Understanding how surface processes shape exosphere formation on airless bodies is limited by how surface properties influence the ejection of volatiles such as Na. Recent studies show that retention and release are sensitive to surface binding energy (SBE), motivating the need for SBE values as a function of mineral type and surface coverage.
Amanda Ricketts +7 more
wiley +1 more source
General inverse-cube thickness scaling of projectile penetration energy in ultrathin films. [PDF]
Proc Natl Acad Sci U S AZaccone A, Sirk TW.
europepmc +1 more source