Results 61 to 70 of about 158,314 (299)
The Effect of Rounding in Bump Foil Structure on the Dynamic Performance of Foil Journal Bearings
Tribology Online, 2019 The performance of air foil journal bearings is closely related to the stiffness of the bump foil. In this paper, the stiffness characteristics of bump foil having a rounding in the structure are investigated and compared with previous models.
Hongyang Hu, Ming Feng
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High-Entropy Layered Oxide Cathode Enabling High-Rate for Solid-State Sodium-Ion Batteries
Nano-Micro Letters, 2023 Highlights High-entropy oxides O3-Na0.95Li0.06Ni0.25Cu0.05Fe0.15Mn0.49O2 cathode constructed by compatible radius and different Fermi level ions was designed for solid-state Na-ion batteries.
Tianxun Cai +7 more
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Advanced Engineering Materials, Volume 27, Issue 6, March 2025.The stability criteria affecting the formation of high‐entropy alloys, particularly focusing in supersaturated solid solutions produced by mechanical alloying, are analyzed. Criteria based on Hume–Rothery rules are distinguished from those derived from thermodynamic relations. The formers are generally applicable to mechanically alloyed samples.
Javier S. Blázquez +5 more
wiley +1 more source
Stability, instability, and error of the force-based quasicontinuum approximation [PDF]
, 2009 Due to their algorithmic simplicity and high accuracy, force-based model coupling techniques are popular tools in computational physics. For example, the force-based quasicontinuum (QCF) approximation is the only known pointwise consistent quasicontinuum
Luskin, Mitchell Barry +5 more
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Advanced Engineering Materials, EarlyView.Predicting extreme defects in additive manufacturing remains a key challenge limiting its structural reliability. This study proposes a statistical framework that integrates Extreme Value Theory with advanced process indicators to explore defect–process relationships and improve the estimation of critical defect sizes. The approach provides a basis for
Muhammad Muteeb Butt +8 more
wiley +1 more source
Stability of second-order differential inclusions
Electronic Journal of Differential Equations, 2011 For an arbitrary second-order stable matrix A, we calculate the maximum positive value R for which the differential inclusion $$ dot{x}in F_{R}(x):={(A+Delta)x, Delta in mathbb{R}^{2imes 2}, |Delta | leq R } $$ is asymptotically stable.
Henry Gonzalez
doaj
Characterization of the stability radius via bifurcation techniques [PDF]
, 2006 Robustness of stability of linear time-invariant systems using the relationship between the structured compex stability radius and a prametrized algebraic Riccato equation is analysed.
Werner, Bodo, Ilchmann, Achim
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Advanced Engineering Materials, EarlyView.The tribological behavior of 100Cr6 steel spheres textured via Vickers microindentation is evaluated under lubricated sliding by varying both dimple size and density. Fine and dense textures significantly reduce friction across all lubrication regimes, while large dimples increase it.
Farideh Davoodi +3 more
wiley +1 more source
Robust stability of patterned linear systems
Electronic Journal of Differential Equations, 2013 For a Hurwitz stable matrix $A\in \mathbb{R}^{n\times n}$, we calculate the real structured radius of stability for $A$ with a perturbation $P=B\Delta (t)C$, where $A, B, C$, $ \Delta (t)$ form a patterned quadruple of matrices; i.e., they are ...
Henry Gonzalez
doaj
Uma contribuição ao controle de sistemas comutados [PDF]
, 2012 Tese (doutorado) - Universidade Federal de Santa Catarina, Centro Tecnológico, Programa de Pós-graduação em Engenharia de Automação e Sistemas, Florianópolis, 2009Esta tese apresenta diversos aspectos relacionados com a modelagem, analise e controle de ...
García, Martín Jorge Pomar
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