Results 41 to 50 of about 116 (113)

A Discrete Mechanics Approach to the Cosserat Rod Theory—Part II: Geometric Insights About Static Equilibria on Vertex and Staggered Grids

International Journal for Numerical Methods in Engineering, Volume 126, Issue 23, 15 December 2025.
ABSTRACT We apply the discrete mechanics approach to the discretisation of geometrically exact Cosserat rods. We consider discrete Cosserat rods defined on a vertex (or nodal) grid, as well as on a staggered grid, and provide a review and update of the results already obtained in Part I for the nodal model variant and, for the first time, present a ...
Holger Lang, Rodrigo T. Sato Martín de Almagro, Tengman Wang, Martina Stavole, Joachim Linn, Sigrid Leyendecker   +5 more
wiley   +1 more source

High‐speed railway track geometry robust maintenance with Bayesian deep learning‐enhanced physical‐informed neural networks

Computer-Aided Civil and Infrastructure Engineering, Volume 40, Issue 24, Page 3934-3952, 6 October 2025.
Abstract Millimeter‐level active control of track geometry irregularity (TGI) is crucial for intelligent maintenance of high‐speed railways. To address the efficiency limitations of existing time‐domain characteristics‐dominated TGI maintenance scheme design methods and vehicle–track coupled dynamics evaluation models, this paper proposes a new ...
Huakun Sun, Yan Gao, Congyang Xu, Wenhao Ding, Fei Yang, Ping Wang, Qing He   +6 more
wiley   +1 more source

A Level Set Topology Optimization Theory Based on Hamilton's Principle

International Journal for Numerical Methods in Engineering, Volume 126, Issue 17, 15 September 2025.
ABSTRACT In this article, we propose a unified variational framework for deriving the evolution equation of the level set function in topology optimization, departing from conventional Hamilton–Jacobi‐based formulations. The key idea is the introduction of an auxiliary domain, geometrically identical to the physical design domain, occupied by ...
Jan Oellerich, Takayuki Yamada
wiley   +1 more source

Coherent Comparison as Information Cost: Axiomatic Foundations for Discrete Ledger Dynamics

Foundations
We develop an information-theoretic, cost-first framework for discrete dynamics in which the primitive operation is ratio-based comparison. Given two quantities compared via their ratio x=a/b, we assign a cost F(x) measuring deviation from equilibrium (x=
Sebastian Pardo-Guerra, Anil Thapa, Megan Simons, Jonathan Washburn   +3 more
doaj   +1 more source

Flow Memory Effect on Open‐Frame Remotely Operated Vehicle Motion

Journal of Field Robotics, Volume 42, Issue 6, Page 2611-2638, September 2025.
ABSTRACT The flow memory effect is a kind of viscous force caused by acceleration between continuous phases and underwater vehicles and the development of the boundary layer near the interfacial surface. This paper establishes a 6‐degrees‐of‐freedom unsteady equation of motion describing the flow memory effect on viscous hydrodynamic loads.
Ruinan Guo, Yingfei Zan, Wenzhi Fu, Chenlei Cao, Duanfeng Han, Nan Sun   +5 more
wiley   +1 more source

ENTANGLING KNOWLEDGE AND IGNORANCE

History and Theory, Volume 64, Issue 3, Page 483-493, September 2025.
ABSTRACT This review essays situates Alain Corbin's Terra Incognita: A History of Ignorance in the Eighteenth and Nineteenth Centuries within current discussions of knowledge and ignorance related to intellectual history, the history of science, and the history of knowledge.
Vera Keller
wiley   +1 more source

On the Influence of the Fiber Curvature on the Stiffness of Long Fiber Reinforced Composites

International Journal for Numerical Methods in Engineering, Volume 126, Issue 15, 15 August 2025.
ABSTRACT The degree of curvature of fiber inclusions in fiber‐reinforced composites impacts the elastic properties of the composite, but numerical studies of this effect are limited by the lack of efficient microstructure generators with fiber curvature control. We propose an extension to the fused Sequential Addition and Migration algorithm (Int.
Celine Lauff, Maximilian Krause, Matti Schneider, Thomas Böhlke   +3 more
wiley   +1 more source

Singularities and Spectral Rigidity of Hyperbolic Operators: Beyond d'Alembert's Formula

This paper explores the intricate relationships between singularities, spectral properties, and the rigidity of hyperbolic operators, moving beyond the classical d'Alembert's formula. We delve into the propagation of singularities in solutions to hyperbolic partial differential equations, analyzing how these singularities are influenced by the geometry
Revista, Zen, MATH, 10
openaire   +1 more source

In-Vehicle Visible Light Communications Data Transmission System Using Optical Fiber Distributed Light: Implementation and Experimental Evaluation. [PDF]

Sensors (Basel), 2022
Beguni C, Căilean AM, Avătămăniței SA, Zadobrischi E, Stoler R, Dimian M, Popa V, Béchadergue B, Chassagne L.   +8 more
europepmc   +1 more source

ESA's Cometary Mission Rosetta-Re-Characterization of the COSAC Mass Spectrometry Results. [PDF]

Angew Chem Int Ed Engl, 2022
Leseigneur G, Bredehöft JH, Gautier T, Giri C, Krüger H, MacDermott AJ, Meierhenrich UJ, Caro GMM, Raulin F, Steele A, Steininger H, Szopa C, Thiemann W, Ulamec S, Goesmann F.   +14 more
europepmc   +1 more source