Results 41 to 50 of about 15,188 (171)
The approximants xi, xi' and xi'_n of the quasicrystal Al-Mn-Pd display most interesting plastic properties as for example phason-induced deformation processes (Klein, H., Audier, M., Boudard, M., de Boissieu, M., Beraha, L., and Duneau, M., 1996, Phil ...
H.-R. Trebin, Klein H, M. Engel
core +1 more source
Primitive icosahedral quasicrystals in ZnMgLi(Dy, Ho, Er, Tm) systems
The study introduces new primitive icosahedral quasicrystals in Zn–Mg–Li–(Dy, Ho, Er, Tm) systems. Quasicrystals are studied with an X‐ray diffraction technique resolving the local atomic structure.New quasicrystals with rare‐earth elements and Li are synthesized with the self‐flux method. The starting composition involves 62.8 at.% Zn, 28.6 at.% Mg, 3.
Ireneusz Buganski +6 more
wiley +1 more source
The family of all subcontinua that separate a compact connected $n$-manifold $X$ (with or without boundary), $n\ge 3$, is an $F_\sigma$-absorber in the hyperspace $C(X)$ of nonempty subcontinua of $X$.
Krupski, Paweł, Samulewicz, Alicja
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Tychonoff's Theorem for Hyperspaces [PDF]
If exp ( X i ) ∖ { ∅ } \exp ({X_i})\backslash \{ \emptyset \} is equipped with a topology that preserves the topological convergence of nets of sets for every i ∈ I i \in I , then the ...
openaire +1 more source
Exploring oxide quasicrystals in internal space
The internal space expansion with variable system size is investigated for three different oxide quasicrystal systems. Patches of 7800, 4800 and 3600 vertices are examined in Ba–Ti–O/Pt(111), Eu–Ti–O/Pd(111) and Sr–Ti–O/Pd(111), respectively. This internal space inspection provides unique structural information for quasicrystalline systems, which goes ...
Sebastian Schenk +3 more
wiley +1 more source
Astrotheology: The natural interface between hyperspace and the Trinity
Over the past few decades, physicists are seeking a unifying theory that could encapsulate the theories of general relativity and quantum mechanics, our understanding of the very big and the infinitesimal small, into one all-inclusive theory. This quest
A.C. Pieterse
doaj +1 more source
Some remarks on hyperspaces [PDF]
1. The purpose of this paper is to answer a question of R. Schori [3] and to provide simpler arguments for some generalizations of Schori's results. If X is a metric space, the hyperspace of X, denoted 2X, is the space of all nonvoid closed subsets of X with the usual Hausdorff metric.
openaire +2 more sources
Outcomes of Permanent Tooth Intrusion; Pulp Necrosis, Ankylosis and Tooth Loss
ABSTRACT Background/Aim The aim of this study was to examine the timing of pulp necrosis, ankylosis, and tooth loss in intruded permanent teeth based on the stage of root development, degree of intrusion, and initial treatment. Materials and Methods In this retrospective study of intruded permanent teeth between 2013 and 2021, data from 112 teeth in 77
Brittany M. Schweiger +4 more
wiley +1 more source
Combined energy -- diffraction data refinement of decagonal AlNiCo
We incorporate realistic pair potential energies directly into a non-linear least-square fit of diffraction data to quantitatively compare structure models with experiment for the Ni-rich $d$(AlNiCo) quasicrystal. The initial structure models are derived
Abe +19 more
core +1 more source
For a continuum, i.e. a compact connected metric space, with more than one point, the following hyperspaces are considered. \(C(X)\) consists of all subcontinua of \(X\) and \(F_2(X)\) of all nonempty subsets of \(X\) with at most two points. These hyperspaces are endowed with the Hausdorff metric.
Martínez-de-la-Vega, Verónica +1 more
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