Results 51 to 60 of about 46,313 (294)
Advanced Engineering Materials, Volume 27, Issue 6, March 2025.ErB4 and NdB4 nanostructured powders are produced by mechanochemical synthesis. 5 h mechanical alloying and 4 M HCl acid leaching are used in the production. ErB4 and NdB4 powders exhibit maximum magnetization of 0.4726 emu g−1 accompanied with an antiferromagnetic‐to‐paramagnetic phase transition at about TN = 18 K and 0.132 emu g−1 with a maximum at ...
Burçak Boztemur +5 more
wiley +1 more source
On polynomial images of a closed ball
, 2022 In this work we approach the problem of determining which (compact) semialgebraic subsets of Rn are images under polynomial maps f : Rm → Rn of the closed unit ball Bm centered at the origin of some Euclidean space Rm and that of estimating (when ...
Ueno, Carlos +1 more
core
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
, 2012 We prove that toric cubes, which are images of $[0,1]^d$ under monomial maps, are the closures of graphs of monotone maps, and in particular semi-algebraically homeomorphic to closed balls.
Basu, Saugata +2 more
openaire +2 more sources
Adding a point to configurations in closed balls
Proceedings of the American Mathematical Society, 2019 We answer the question of when a new point can be added in a continuous way to configurations of n n distinct points in a ...
Chen, Lei, Gadish, Nir, Lanier, Justin
openaire +3 more sources
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
SINGLE OBJECTIVE OPTIMIZATION OF CLOSED BALL MILLING CIRCUIT OF ESFORDI PHOSPHATE PLANT [PDF]
مجله مدل سازی در مهندسی, 2013 The subject of this project is optimization of closed ball-mill circuit at Esfordi phosphate plant, based on integration of process simulation and genetic algorithm (GA) concepts.
Z.S. Mirzaei, A. Farzanegan
doaj +1 more source
Applied Sciences, 2022 Ball valves are widely used as flow control devices wherein a hollow, perforated ball pivots to control the liquid flowing through it. Due to a simple structure and only a quarter-turn of the stem required for either a fully open or fully closed state ...
Hyo-Lim Kang +2 more
doaj +1 more source
RELATIVELY WEAKLY OPEN SETS IN CLOSED BALLS OF $C^*$-ALGEBRAS [PDF]
Journal of the London Mathematical Society, 2003 The main result is that for an infinite-dimensional \(C^\ast\)-algebra, any relatively weakly open subset of the unit ball has diameter 2. The corresponding result for uniform algebras was proved by \textit{O. Nygaard} and \textit{D. Werner} [Arch. Math. 76, No. 6, 441--444 (2001; Zbl 0994.46006)].
Becerra Guerrero, Julio +2 more
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Influence of Test Temperature and Test Frequency on Fatigue Life of Aluminum Alloy EN AW‐2618A
Advanced Engineering Materials, EarlyView.The influence of test temperature and test frequency on the fatigue life of EN AW‐2618A is investigated. High‐cycle fatigue tests are performed at different test temperatures and frequencies on the 1000 h/230°C overaged state. Both test parameters reduce fatigue life due to time‐dependent damage mechanisms.
Ying Han +5 more
wiley +1 more source