迷住 发表于 2025-3-23 09:48:23
Physical Models of Perfect Quasicrystal Growthtiling, according to “physical” rules, i.e., ones involving one-by-one addition of tiles to a growing cluster. I will then show some of our new work on the properties of defects in these growth algorithms.讨厌 发表于 2025-3-23 16:52:09
Generation and Dynamics of Defects in Two-Dimensional Quasicrystalsre. In a first simulation, based on a Eden-type growth algorithm of a Penrose Tiling, we observe defects similar to vacancies which do not destroy quasi-long-range order. In a second simulation, a molecular dynamics based on an atomistic model, we find that phason relaxation occurs only in presence of vacancies.询问 发表于 2025-3-23 21:10:59
Structure and Growth of Two- and Three-Dimensional Hexatic Liquid Crystalserfectly periodic array that extends to infinity in all three directions. The other extreme is a fluid, in which the atoms or molecules are completely disordered and the material is both orientationally and positionally isotropic that is, it looks the same when viewed from any direction.FRAX-tool 发表于 2025-3-24 01:06:34
Intrinsic Frustration and Space Curvature in Smectic a Liquid Crystalslk and layer orientation perpendicular to the Smectic A-Isotropic interface. In a 2D model, this frustration is released in the S. curved space. Uncurving S. to R., one finds back the bâtonnets and “zig-zag” shapes observed in thin samples.hallow 发表于 2025-3-24 02:26:05
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,Ausgewählte Kostenrechnungsverfahren, for partial correlations, and sometimes atomic density distributions may be extracted from diffraction patterns. These data are usefully complemented by the direct determinations of pair (or preferably partial pair) distribution functions which take into account the “in-between strong Bragg peaks”LVAD360 发表于 2025-3-24 12:16:58
Einführung in die Krankenhaus-Kostenrechnung Kuo (1985) and Zhang, Ye & Kuo (1985) several hundred papers have been published presenting structural information about such phases. But, to date no really quantitative structure refinement, with a quality comparable to that of a conventional structure determination, has been performed. Table 1 giVulnerary 发表于 2025-3-24 17:29:16
Hans-Dieter Huber,Martin Kranerteen possible to describe its structure as a decoration of a three-dimensional (3D) Penrose tiling.. Attempts to determine such a model for Al73Mn21Si6 have not been succesful.. Instead, a sixdimensional model for its structure was proposed, which did give a good fit to the diffraction data..Keshan-disease 发表于 2025-3-24 21:15:44
https://doi.org/10.1007/978-3-322-89024-5periodical stackings along one dimension of fluid layers of molecules . In lamellar phases of lyotropic liquid crystals , built by amphiphilic molecules in presence of water , paraffinic bilayers of amphiphiles and polar layers of water are alternatively stacked with flat interfaces defined by t种族被根除 发表于 2025-3-25 01:40:33
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