Results 91 to 100 of about 728 (237)

Astragalus ecomorphology in Quaternary elephantids

Journal of Quaternary Science, EarlyView.
ABSTRACT The astragalus plays a fundamental role in the graviportal locomotion of proboscideans, reflecting the biomechanical constraints imposed by large body masses. This study analyses the morphological variability of the astragalus in Quaternary elephantids using linear biometry and 3D geometric morphometrics, incorporating an unpublished ...
Darío Fidalgo, Palmira Saladié, Josep Valverdú, Antonio Pineda, Rosa Huguet, Joan Madurell‐Malapeira, Antonio Rosas   +6 more
wiley   +1 more source

A Geometrically Regularized Gradient‐Damage Model With Orthogonality‐Based Energy Split for Dynamic Anisotropic Compression‐Shear Fracture

International Journal for Numerical and Analytical Methods in Geomechanics, EarlyView.
ABSTRACT This study proposes a novel geometrically regularized gradient‐damage model for simulating dynamic mixed‐mode fracture in orthotropic materials with tension–compression asymmetry. In this model, a thermodynamic framework is formulated by incorporating damage dissipation into internal energy evolution, from which the constitutive relation and ...
Hui Li, Shanyong Wang
wiley   +1 more source

Some characterizations of Moufang generalized quadrangles

, 2004
We prove the longstanding conjecture that the 3-Moufang condition for generalized quadrangles is equivalent to the Moufang condition. We mention some other characterizations of Moufang quadrangles that follow from this result.
Van Maldeghem, Hendrik, Haot, Fabienne
core   +1 more source

A Generalized Automated Framework for Thermal Characterization: From Bulk Materials to Complex Heterostructures

Small, EarlyView.
An automated MATLAB framework for inverse photoacoustic analysis enables precise thermal characterization of complex multilayer films. Application to electrodeposited CuxSe reveals a stoichiometry‐dependent thermal conductivity governed by lattice anharmonicity, not grain‐size scattering, in these superionic materials. ABSTRACT Precise determination of
Miguel Ángel Tenaguillo, Elena Pérez‐Picazo, Olga Caballero‐Calero, Cristina V. Manzano, Marisol Martin‐González   +4 more
wiley   +1 more source

On the history of generalized quadrangles

Bulletin of the Belgian Mathematical Society - Simon Stevin, 1994
\textit{S. E. Payne} und \textit{J. A. Thas} [``Finite generalized quadrangles'' (1984; Zbl 0551.05027), Chapter 6] zeigten, daß es genau ein verallgemeinertes Viereck \(Q\) mit \(5\) verschiedenen Punkten auf einer Geraden und 3 verschiedenen Geraden durch einen Punkt gibt.
openaire   +3 more sources

In Situ Investigation of Microstructure Evolution and Stress Generation During Low‐Pressure Carburizing and Quenching by Means of Synchrotron X‐Ray Diffraction

steel research international, EarlyView.
This study uses in situ synchrotron X‐ray diffraction at the German Electron Synchrotron to analyze low‐pressure carburizing (LPC) in steels. The findings reveal surface carbon saturation and carbide formation kinetics, and phase‐specific stress development during quenching. The results show carbide kinetics depend on steel grade and size, while stress
Ogün Baris Tapar, Michael Georg Zürn, Jens Gibmeier, Antonio Carlos de Figueiredo Silveira, Matthias Steinbacher, Norbert Schell, Jérémy Epp   +6 more
wiley   +1 more source

The classification of all (x, y)-transitive generalized quadrangles

, 1986
Let S = (P, B, I) be a generalized quadrangle of order (s, t). For x, y ∈ P, x ≁ y, let H(x, y) be the group of all collineations of S fixing x and y linewise. If z∈{x, y}⊥, then the set of all points incident with the line xz (resp. yz) is denoted by xz
Thas, J.A
core   +1 more source

Simple and detailed modeling of corrosion‐affected slender shear critical RC beams

Structural Concrete, EarlyView.
Abstract The corrosion of steel bars compromises both the safety and the serviceability of reinforced concrete (RC) structures. Consequently, reliable tools are required to estimate the detrimental effects of corrosion on the structural response of RC members subjected to transverse loads.
Nino Spinella, Pier Paolo Rossi
wiley   +1 more source

Subquadrangle m-regular systems on generalized quadrangles

, 2010
We introduce the notion of subquadrangle regular system of a generalized quadrangle. A subquadrangle regular system of order m on a generalized quadrangle of order (s, t) is a set of embedded subquadrangles with the property that every point lies on ...
Tim Penttila, COSSIDENTE, Antonio, Antonio Cossidente, T. Penttila   +3 more
core   +1 more source

A Review on Jahn–Teller Distortions in Prussian Blue Analogs Molecular Magnets

The Chemical Record, EarlyView.
This review highlights the central role of the Jahn–Teller effect in governing structural stability and electrochemical performance in Prussian blue analogs (PBAs). It establishes clear structure–property relationships and summarizes effective mitigation strategies, providing design guidelines for developing stable, high‐performance PBA‐based energy ...
Nilasha Maiti, Sher Singh Meena, Pramod Bhatt   +2 more
wiley   +1 more source