forthcoming articles

The following articles are a selection of those recently accepted for publication in Acta Crystallographica Section A: Foundations and Advances.

See also Forthcoming articles in all IUCr journals.

Accepted 8 January 2018

Monoclinic sphere packings. II. Trivariant lattice complexes with mirror symmetry

All homogeneous sphere packings were derived that refer to the trivariant monoclinic lattice complexes with mirror symmetry.

Accepted 2 January 2018

Coordination Numbers of Vertex Graph of Penrose Tiling

A description of coordination sequence of the vertex graph of Penrose tiling is obtained.

Accepted 24 December 2017

The development of the Powder Profile Refinement at the Reactor Centre Netherlands at Petten

Around 1965 at the Reactor Centre Netherlands at Petten, Loopstra, Van Laar and Rietveld developed the `Profile Refinement'. Although Loopstra had the idea, Van Laar worked it out mathematically, and Rietveld made the computer program, the essential contributions of the first two are forgotten when using the `Rietveld Refinement'.

Accepted 22 December 2017

Electron-density-critical points analysis and catastrophe theory to forecast structure instability in periodic solids

Electron-density topology is used to detect instability in periodic solids.

Accepted 21 December 2017

Ab initio structure determination and qu­antitative disorder analysis on nanoparticles by electron diffraction tomography

A routine to extract diffuse scattering intensities caused by two-dimensional crystalline defects from tomographic electron diffraction data and the algorithm for comparison with simulated diffraction data were developed and applied to intergrown zeolite beta A and zeolite beta B.

Accepted 8 December 2017

The fundamentals of crystal orientation

New parametric equations are developed for crystal orientation, the solutions of which are free of constraints or approximations and are well suited for determination of crystal orientation with high accuracy and precision. These equations are validated and checked for orienting of single crystals with high precision and accuracy.

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