1 - 10 of 46 articles
Atomic resolution low-angle bright-field (LABF) scanning transmission electron-microscope (STEM) images and high-angle bright-field (HABF) STEM images of 011-orientated Si have been experimentally obtained together with high-angle annular dark-field (HAADF) STEM images. The contrast formation...
In the paper `A strict solution for the optimal superimposition of protein structures' by Chuanbo Chen & Qishen Li Acta Cryst. (2004), A60, 201-203, we claimed that existing methods for the optimal superimposition of two point sets, requiring the precondition of coincident centroids, are...
The 15 3-periodic minimal nets of Beukemann & Klee Z. Kristallogr. (1992), 201, 37-51 have been examined. Seven have collisions in barycentric coordinates and are self-entangled. The other eight have natural tilings. Five of these tilings are self-dual and the nets are the labyrinth nets of the...
A detailed quantitative analysis of the various Bragg and Laue components of the integrated reflection power ratio for cylindrical crystals, and the dependence of these components on the Bragg angle, B, the reduced radius, 0 = 0, and the ratio of absorption coefficient to diffraction cross...
The charge flipping algorithm proposed by Oszlanyi & Suto Acta Cryst. (2004), A60, 134-141 for ab initio reconstruction of crystal structures is generalized towards superspace. Its efficiency is demonstrated by successful reconstruction of eight known incommensurately modulated structures from...
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