Double-slit asymmetrical dynamical diffraction of X-rays in ideal crystals [0.03%]
理想晶体中X射线的双缝非对称动力学衍射
Minas Balyan
Minas Balyan
The theoretical investigation of double-slit asymmetrical dynamical diffraction of X-rays in perfect crystals establishes that Young's interference fringes on the exit surface are formed. The position of the fringes in the cross section of ...
Senik Matinyan,Pavel Filipcik,Jan Pieter Abrahams
Senik Matinyan
Deep learning techniques can recognize complex patterns in noisy, multidimensional data. In recent years, researchers have started to explore the potential of deep learning in the field of structural biology, including protein crystallograp...
Gunnar Thorkildsen
Gunnar Thorkildsen
Parameters in analytical models for X-ray form factors of ions f0(s), based on the inverse Mott-Bethe formula involving a variable number of Gaussians, are determined for a wide range of published data sets {s, f0(s)}. The models reproduce ...
Gregory McColm
Gregory McColm
A crystal net can be derived from a `generalized' voltage graph representing a graph analog of a fundamental domain of that crystal net along with a sufficient collection of its symmetries. The voltage assignments include not only isometrie...
Ma Louise Antonette De Las Peñas,Mark Tomenes,Kristan Liza
Ma Louise Antonette De Las Peñas
This work discusses the symmetry groups of two classes of woven fabrics, two-way twofold fabrics and three-way threefold fabrics. A method to arrive at a design of a fabric is presented, employing methods in color symmetry theory. Geometric...
Céleste A Reiss
Céleste A Reiss
Obituary for Professor Dr Hendrik (Henk) Schenk. Keywords: International Tables for Crystallography; Interna...
Craig S Kaplan,Michael O&#x;Keeffe,Michael M J Treacy
Craig S Kaplan
The diffraction pattern from the recently reported aperiodic `einstein', or `hat', monohedral tiling [Smith et al. (2023). arXiv:2303.10798v1] has been analyzed. The structure is the hexagonal mta net, a kite tiling, with aperiodic vertex d...
Ido Biran,Semën Gorfman
Ido Biran
The concept of monoclinic ferroelectric phases has been extensively used over recent decades for the understanding of crystallographic structures of ferroelectric materials. Monoclinic phases have been actively invoked to describe the phase...
Michael O&#x;Keeffe,Michael M J Treacy
Michael O&#x;Keeffe
For 2-periodic polycatenanes with isogonal (vertex-transitive) embeddings, the basic units linked are torus knots and links including the unknots (untangled polygons). Twenty-four infinite families have been identified, with hexagonal, tetr...
Identification of Kikuchi lines in electron diffraction patterns collected in small-angle geometry [0.03%]
小角度收集的电子衍射花样中的Kikuchi线标识
Zbigniew Mitura,Grzegorz Szwachta,Łukasz Kokosza et al.
Zbigniew Mitura et al.
It is demonstrated that Kikuchi features become clearly visible if reflection high-energy electron diffraction (RHEED) patterns are filtered using digital image processing software. The results of such pattern transformations are shown for ...