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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
Primitive Words, Free Factors and Measure Preservation
, 2012 Let F_k be the free group on k generators. A word w \in F_k is called primitive if it belongs to some basis of F_k. We investigate two criteria for primitivity, and consider more generally, subgroups of F_k which are free factors.
A. Miasnikov +20 more
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Advanced 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
Journal of Mathematical Cryptology, 2015 In this paper we present a new method of choosing primitive elements for Brezing–Weng families of pairing-friendly elliptic curves with small rho-values, and we improve on previously known best rho-values of families [J.
Yoon Kisoon
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Enveloping algebras of Slodowy slices and Goldie rank
, 2010 It is known that any primitive ideal I of U(g) whose associated variety contains a nilpotent element e in its open G-orbit admits a finite generalised Gelfand-Graev model which is a finite dimensional irreducible module over the finite W-algebra U(g,e ...
Premet, Alexander
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Primitive elements in finite fields and costas arrays [PDF]
Applicable Algebra in Engineering, Communication and Computing, 1991 This paper is concerned with the following four conjectures about the finite field \(\mathbb F_q\) which were made by \textit{S. W. Golomb} in 1984 [J. Comb. Theory, Ser. A 37, 13--21 (1984; Zbl 0547.05020)]. Conjecture A: If \(q>2\), then \(\mathbb F_q\) contains primitive elements \(\alpha\) and \(\beta\) with \(\alpha+\beta=1\). Conjecture B: If \(q>
Stephen D. Cohen, Gary L. Mullen
openaire +2 more sources
Robust Spot Melting by 3D Spot Arrangements in Electron Beam Powder Bed Fusion
Advanced Engineering Materials, EarlyView.This work proposes an approach to replace separately melted contours for spot melting in electron beam powder fusion. Adapting the spot arrangements close to the contour combined with stacking yields a comparable surface quality without the inherent challenges of separate contours, as demonstrated, by electron optical images and roughness measurements.
Tobias Kupfer +4 more
wiley +1 more source
Materials & Design, 2019 Gyroid is a member of the triply periodic minimal surfaces (TPMS) family. In this paper, the mechanical properties of Gyroid-structures are investigated both experimentally and computationally.
Diab W. Abueidda +5 more
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A generalization of primitive sets and a conjecture of Erdős
Discrete Analysis, 2020 A generalization of primitive sets and a conjecture of Erdős, Discrete Analysis 2020:16, 13 pp. Call a set $A$ of integers greater than 1 _primitive_ if no element of $A$ divides any other. How dense can a primitive set be?
Tsz Ho Chan +2 more
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Mathematics, 2021 Heat transfer enhancement poses a significant challenge for engineers in various practical fields, including energy-efficient buildings, energy systems, and aviation technologies.
Xuan Hoang Khoa Le +2 more
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