Results 141 to 150 of about 130,034 (274)

Optimization of Pulsed Saturation Transfer MR Fingerprinting (ST MRF) Acquisition Using the Cramér–Rao Bound and Sequential Quadratic Programming

open access: yesMagnetic Resonance in Medicine, Volume 95, Issue 3, Page 1778-1790, March 2026.
ABSTRACT Purpose To develop a method for optimizing pulsed saturation transfer MR fingerprinting (ST MRF) acquisition. Methods The Cramér–Rao bound (CRB) for variance assessment was employed on Bloch–McConnell‐based simulated signals, followed by a numerical sequential quadratic programming optimization and basin‐hopping avoidance of local minima ...
Nikita Vladimirov   +2 more
wiley   +1 more source

Toward Dynamic Phase‐Field Fracture at Finite Strains

open access: yesPAMM, Volume 26, Issue 1, March 2026.
ABSTRACT We investigate the evolution of dynamic phase‐field fracture in the finite‐strain setting, extending our previous work in the small‐strain viscoelastodynamic regime. The elastodynamic equations are coupled with a dissipative damage evolution for the phase‐field variable z$z$.
Sven Tornquist   +4 more
wiley   +1 more source

Three‐Dimensional Simulation of Crack Initiation in ice Shelves at Pinning Points

open access: yesPAMM, Volume 26, Issue 1, March 2026.
ABSTRACT Ice shelves are large ice masses floating on the ocean that are still connected to the inland ice of a glacier. Due to high elevations in the bathymetry, the ice shelf can be partially grounded. These areas are called ice rises that act as pinning points.
Rabea Sondershaus   +2 more
wiley   +1 more source

Iterative Mold Adaptation for Pre‐Compensation of Warpage in Aluminum Casting

open access: yesPAMM, Volume 26, Issue 1, March 2026.
ABSTRACT As a result of uneven cooling and internal stresses, warpage is a significant challenge in metal casting, particularly when using metal dies. Previous research has sought to reduce warpage by adjusting process parameters, such as the extraction temperature.
Steffen Tillmann   +4 more
wiley   +1 more source

Numerical and Analytical Study of Elastic Parameters in Linearized Micropolar Elasticity

open access: yesPAMM, Volume 26, Issue 1, March 2026.
ABSTRACT The effect of elastic parameters in the linearized theory of micropolar elasticity on observable deformation is analyzed analytically and numerically. Specifically, a shear deformation boundary value problem is studied to explore the physical implications of a micropolar formulation. Our new analytical solution for the two‐dimensional shearing
Lucca Schek, Wolfgang H. Müller
wiley   +1 more source

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