Results 141 to 150 of about 620,813 (298)

On the Exponents of 2-Multiarrangements

open access: yesTokyo Journal of Mathematics, 2007
Let \(\mathcal A\) be a central hyperplane arrangement in an \(\ell\)-dimensional vector space over a field of characteristic zero. A pair \((\mathcal A, k)\) consisting of an \(\ell\)-arrangement and a multiplicity \(k: \mathcal A\to {\mathbb N}\) is called an \(\ell\)-multiarrangement as introduced by \textit{G. M. Ziegler} [Singularities, Proc.
openaire   +2 more sources

Revisiting Stability Criteria in Ball‐Milled High‐Entropy Alloys: Do Hume–Rothery and Thermodynamic Rules Equally Apply?

open access: yesAdvanced 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

Further Analysis of the Zipf's Law: Does the Rank-Size Rule Really Exist? [PDF]

open access: yes
The widely-used Zipf’s law has two striking regularities. One is its excellent fit; the other is its close-to-one exponent. When the exponent equals to one, the Zipf’s law collapses into the rank-size rule.
Fungisai Nota, Shunfeng Song
core  

Brownian super-exponents

open access: yesCommunications on Stochastic Analysis, 2007
We introduce a transform on the class of stochastic exponentials for d-dimensional Brownian motions. Each stochastic exponential generates another stochastic exponential under the transform. The new exponential process is often merely a supermartingale even in cases where the original process is a martingale.
openaire   +3 more sources

On the Lightweight Potential of Laser Additive Manufactured NiTi Triply Periodic Minimal Sheet Lattices

open access: yesAdvanced Engineering Materials, EarlyView.
This study explores the lightweight potential of laser additive‐manufactured NiTi triply periodic minimal surface sheet lattices. It systematically investigates the effects of relative density and unit cell size on surface quality, deformation recovery, compression behavior, and energy absorption.
Haoming Mo   +3 more
wiley   +1 more source

A toxicological assessment of Ganoderma lucidum and Cordyceps militaris mushroom powders

open access: yesFrontiers in Toxicology
Gonoderma lucidum (G. lucidum) and Cordyceps militaris (C. militaris) are among the many mushrooms known for their long history of use in traditional medicine. Wildcrafted sources of mushrooms including G. lucidum and C.
Paola P. Chrysostomou   +5 more
doaj   +1 more source

A Workflow to Accelerate Microstructure‐Sensitive Fatigue Life Predictions

open access: yesAdvanced Engineering Materials, EarlyView.
This study introduces a workflow to accelerate predictions of microstructure‐sensitive fatigue life. Results from frameworks with varying levels of simplification are benchmarked against published reference results. The analysis reveals a trade‐off between accuracy and model complexity, offering researchers a practical guide for selecting the optimal ...
Luca Loiodice   +2 more
wiley   +1 more source

Microstructural Evolution and Vacancy Defect Formation in Mn–Mo–Ni RPV Steel Under Low Cycle Fatigue: Insights From EBSD and PALS

open access: yesAdvanced Engineering Materials, EarlyView.
Low‐cycle fatigue damage in Mn–Mo–Ni reactor pressure vessel steel is examined using a combined electron backscatter diffraction and positron annihilation lifetime spectroscopy approach. The study correlates texture evolution, dislocation substructure development, and vacancy‐type defect formation across uniform, necked, and fracture regions, providing
Apu Sarkar   +2 more
wiley   +1 more source

A Kinetic Model of Copper Cycling in San Francisco Bay

open access: yesSan Francisco Estuary and Watershed Science, 2006
A two-dimensional, depth-averaged kinetic model of copper cycling was developed for the San Francisco Bay estuary. Adsorption and desorption reaction rate constants were determined from experimental sorption experiments. To calibrate the model, processes
Brad Bessinger   +5 more
doaj  

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