Results 101 to 110 of about 4,085 (219)

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, Alexander Fidlin, Oleg V. Gendelman   +2 more
wiley   +1 more source

Optimal Quadrature Formulae [PDF]

The Computer Journal, 1967
openaire   +2 more sources

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, Indigo Brownhall, Anasuya Aruliah, Marek Ziebart, Santosh Bhattarai   +4 more
wiley   +1 more source

On the derivation of the formula for the general solution of an ordinary linear differential equation with constant coefficients

Известия высших учебных заведений. Поволжский регион: Физико-математические науки
Background. Linear differential equations with constant coefficients are often used to solve a number of physical, engineering, chemical and biological problems.
Dostonjon N. Barotov, Ruziboy N. Barotov
doaj   +1 more source

Assessment of a Finite Volume Discretization of the Horizontal Pressure Gradient Force Beneath Sloping Ice Shelves

Journal of Advances in Modeling Earth Systems, Volume 18, Issue 8, August 2026.
Abstract The accurate computation of pressure gradients in ocean models is essential for simulating ocean and climate processes. Inaccurate computation can result in spurious velocities on the order of real ocean flows, particularly in quiescent ice shelf cavities.
C. K. Yung, R. W. Hallberg, A. Adcroft, A. K. Morrison   +3 more
wiley   +1 more source

Midpoint Quadrature Formulas [PDF]

Mathematics of Computation, 1967
openaire   +1 more source

Subduction Initiation and Early Subduction Zone Development: Insights From the P–T–t Path of the Bay of Islands Metamorphic Sole

Journal of Metamorphic Geology, Volume 44, Issue 7, Page 510-536, August 2026.
ABSTRACT The processes involved during subduction initiation (SI) remain poorly constrained, in part due to the rarity of geological archives. Ophiolites and their underlying metamorphic soles are thought to form during subduction zone infancy and may thus provide critical constraints. Metamorphic soles are derived from oceanic crust of the lower plate
François Fournier‐Roy, Carl Guilmette, Mark Coleman, Kyle Larson, Douglas K. Tinkham, Alana M. Hinchey, John Wakabayashi, Jean H. Bédard, Louise Mérit, Philippe Agard, Loïc Labrousse, Antoine Godet   +11 more
wiley   +1 more source

Root Structural and Metabolic Plasticity Confers Tolerance to Salinity in Wild Barley Species Grown Under Waterlogging

Plant, Cell &Environment, Volume 49, Issue 8, Page 5593-5606, August 2026.
ABSTRACT Salinity combined with waterlogging is a major abiotic stress that severely limits crop growth and yield. We investigated species‐specific adaptations to salinity under constant waterlogging conditions in the wild halophytic barleys Hordeum marinum and H. glaucum, compared with the cultivated H. vulgare.
Stanislav Isayenkov, Ljudmilla Borisjuk, Simon Mayer, Alexander Hilo, Dominic Knoch, Tobias Meitzel, Bettina Hause, Yudelsy Antonia Tandron Moya, Hardy Rolletschek, Edgar Peiter, Volodymyr Radchuk   +10 more
wiley   +1 more source

Improved subjective sleep quality in older adults by enhancing the GABAergic system in the sensorimotor cortex

The Journal of Physiology, Volume 604, Issue 15, Page 6506-6546, 1 August 2026.
Abstract figure legend Sleep disturbances are common in older adults, highlighting the need for accessible interventions to improve sleep quality. Eighteen older adults per group (balance training and control) were assessed before and after 12 weeks. The balance group increased GABA levels (magnetic resonance spectroscopy) and functional connectivity ...
Selin Scherrer, Sven Egger, Xinyu Liu, Anna Zoé Wick, Björn Rasch, Lijing Xin, Benedikt Lauber, Wolfgang Taube   +7 more
wiley   +1 more source

Fast and Accurate GPU‐Accelerated Computation of Two‐Electron Four‐Center Coulomb Repulsion Integrals

Journal of Computational Chemistry, Volume 47, Issue 20, July 30, 2026.
Our GPU software rapidly and accurately computes two‐electron, four‐center Coulomb repulsion integrals using Slater‐type orbitals. It involves applying a simple transformation to eliminate the Coulomb singularity and using the trapezoidal quadrature rule. The quadrature rule converges rapidly, as demonstrated in this graph.
Avleen Kaur, William Chen, Gautam Kirshan Luhana, Lior Silberman, Mark Ewert, Alexandra Bünger, Ury Segal, Chen Greif   +7 more
wiley   +1 more source