Results 111 to 120 of about 2,690,813 (243)

Numerical Approximation of Volterra Integro-Differential Equations of the Second Kind Using Boole's Quadrature Rule Method

Mathematics and Statistics, 2023
Muhammad Ashraf Darus, Nurul Huda Abdul Aziz, Deraman F., Asi Salina, M. S. Anuar, Zakaria H. L.   +5 more
openaire   +1 more source

High‐frequency income dynamics

The Scandinavian Journal of Economics, EarlyView.
Abstract We generalize the canonical permanent–transitory income process to allow for infrequent shocks. The distribution of income growth rates can then have a discrete mass point at zero and fat tails as observed in income data. We provide analytical formulas for the unconditional and conditional distributions of income growth rates and higher‐order ...
Jeppe Druedahl, Michael Graber, Thomas H. Jørgensen   +2 more
wiley   +1 more source

Optimal Transmission Performance of Quadrature Wireless Resonators at 3 T

Magnetic Resonance in Medicine, Volume 97, Issue 1, Page 403-413, January 2027.
ABSTRACT Purpose To demonstrate a method for optimizing the efficiency of wireless resonators using tailored excitation from a dual‐transmit birdcage coil (BC), and to present the design and experimental investigation of a quadrature resonator for 3 T breast MRI application.
Leila Sharipova, Dmitrii Tikhonenko, Christophe Vilmen, David Bendahan, Stefan Enoch, Redha Abdeddaim, Alena Shchelokova, Marc Dubois   +7 more
wiley   +1 more source

Immersed Boundary Projection Method for Boundaries With Slip Velocities

International Journal for Numerical Methods in Fluids, Volume 98, Issue 12, Page 1266-1292, December 2026.
A formulation of the immersed boundary method for incompressible flow over arbitrarily‐shaped bodies with surface slip described by the Navier boundary condition is presented. The wall slip velocity and the boundary force are determined implicitly through a projection to satisfy both the boundary condition and the divergence‐free condition of the ...
Takehiro Fujii, Takeshi Omori
wiley   +1 more source

Correlating Pulmonary Hemodynamics With HP 129Xe Dissolved‐Phase MRSI in a Controlled Porcine Intervention Study

Magnetic Resonance in Medicine, Volume 96, Issue 6, Page 2588-2600, December 2026.
ABSTRACT Purpose Pulmonary hypertension is related to a 1‐year mortality ranging from < 5% to > 20% in low‐ and high‐risk groups. Right heart catheterization is the diagnostic gold standard, associated with a 1.1% rate of severe adverse events, posing the need for a non‐invasive diagnostic tool.
Markus Phillip Andersen, Mattias Hedegaard Kristensen, Esben Søvsø Szocska Hansen, Rolf F. Schulte, Mohsen Redda, Uffe Kjærgaard, Michael Vaeggemose, Christoffer Laustsen   +7 more
wiley   +1 more source

Symmetric Hermite Quadrature‐Based Balanced Truncation for Learning Linear Dynamical Systems From Derivative Data

Proceedings in Applied Mathematics and Mechanics, Volume 26, Issue 4, December 2026.
ABSTRACT Data‐driven reduced‐order modeling is an essential component in the computer‐aided design of control systems. In this work, we present a novel symmetric Hermite formulation of the quadrature‐based balanced truncation algorithm that constructs linear reduced‐order models from evaluations of the full‐order system's transfer function and its ...
Sean Reiter, Steffen W. R. Werner
wiley   +1 more source

Simultaneous Optimization of Design Layout and Material Properties in Reinforced Concrete Structures

Proceedings in Applied Mathematics and Mechanics, Volume 26, Issue 4, December 2026.
ABSTRACT The sustainable transformation of the building sector requires the design of mechanically efficient civil engineering structures, the consideration of material properties in the design layout plays an important role in this context. Steel‐reinforced concrete is an anisotropic bi‐material composite, which represents one of the most popular ...
Daniela Masarczyk, Minh Tuan Tran, Detlef Kuhl   +2 more
wiley   +1 more source

Finite Viscoelastic Modeling of Ice Shelves Using Glen's Flow Law and Depth‐Dependent Material Properties

Proceedings in Applied Mathematics and Mechanics, Volume 26, Issue 4, December 2026.
ABSTRACT Ice shelves are floating seaward extensions of glaciers that form where land‐based ice flows into the ocean. Recent observations suggest that their mechanical behavior is suitably described by a viscoelastic Maxwell model, as this framework captures both the instantaneous elastic response and the time‐dependent viscous flow of ice.
Marvin Koßler, Sebastian Skatulla, Angelika Humbert, Ralf Müller, Jörg Schröder   +4 more
wiley   +1 more source

Two-stage ROM: a hybrid reduced order model for offline and online efficiency. [PDF]

Adv Model Simul Eng Sci
Dhopeshwar R, Bansal H, Veroy K.
europepmc   +1 more source

A Numerical Study of a Weakly Symmetric Dual‐Mixed Finite Element Method for the Stokes Source Problem With Velocity Postprocessing

Proceedings in Applied Mathematics and Mechanics, Volume 26, Issue 4, December 2026.
ABSTRACT We present a numerical study of a weakly symmetric dual‐mixed finite element method for the Stokes source problem, in which the Cauchy stress is the primary unknown and its symmetry is imposed weakly through a vorticity Lagrange multiplier. Viewing the scheme as the incompressible limit of the reduced‐symmetry mixed elasticity framework, we ...
Fleurianne Bertrand, Tugay Dağlı
wiley   +1 more source