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Inferring structural information from the intensity of a small‐angle scattering (SAS) experiment is an ill‐posed inverse problem. Thus, the determination of a solution is in general non‐trivial. In this work, the indirect Fourier transform (IFT), which determines the pair distance distribution...
In this paper a method is suggested for naming any convex polyhedron by a numerical code arising from the adjacency matrix of its edge graph. A polyhedron is uniquely fixed by its name and can be built using it. Classes of convex n‐acra (i.e. n‐vertex polyhedra) are strictly ordered by their names.
Topological coordinate systems are used to address all cells of abstract cell complexes. In this paper, a topological coordinate system for cells in the diamond cubic grid is presented and some of its properties are detailed. Four dependent coordinates are used to address the voxels (triakis...
This paper reports on the fabrication and characterization of X‐ray waveguide beamsplitters. The waveguide channels were manufactured by electron‐beam lithography, reactive ion etching and wafer bonding techniques, with an empty (air) channel forming the guiding layer and silicon the cladding...
A Rodrigues vector is a triplet of real numbers used for parameterizing rotations or orientations in three‐dimensional space. Because of its properties (e.g. simplicity of fundamental regions for misorientations) this parameterization is frequently applied in analysis of orientation maps of...
An iterative transform method proposed previously for direct phasing of high‐solvent‐content protein crystals is employed for enhancing the molecular‐replacement (MR) algorithm in protein crystallography. Target structures that are resistant to conventional MR due to insufficient similarity...
Volume A of International Tables for Crystallography is the reference for space‐group information. However, the content is not exhaustive because for many space groups a variety of settings may be chosen but not all of them are described in detail or even fully listed. The use of alternative...
Obituary for Vojtech Jaroslav Kopský.
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