Dorsal-Kyphosis
发表于 2025-3-30 11:12:33
Generalized Crystallographyenerally, “a crystal is a structure the description of which is much smaller than the structure itself” and this view leads to the consideration of structures as carriers of information and on to wider concerns with growth, form, morphogenesis, and life itself.
pineal-gland
发表于 2025-3-30 12:24:40
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intelligible
发表于 2025-3-30 19:14:05
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古老
发表于 2025-3-30 23:34:43
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nettle
发表于 2025-3-31 02:33:04
Helical Structures: The Geometry of Protein Helices and Nanotubesit. A plane hexagonal lattice wrapped round a cylinder provides a useful starting point for describing the helical conformations of protein molecules, for investigating the geometrical properties of carbon nanotubes, and for certain types of dense packings of equal spheres.
一条卷发
发表于 2025-3-31 06:12:11
From Waxes to Polymers—Crystallography of Polydisperse Chain Assemblieslid solutions and also how they may phase separate. It is clear that two types of stable solid solution are formed—one that is lamellar and one that is “nematocrystalline.” Respective examples are wax fractions with narrow chain length distributions and chain-extended, low molecular weight polyethylene.
Friction
发表于 2025-3-31 09:52:35
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沉默
发表于 2025-3-31 15:37:38
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弯曲的人
发表于 2025-3-31 17:45:52
History of X-Ray Crystallographyphase problem, the major obstacle in the path leading from the observed X-ray diffraction pattern to the desired crystal structure. The essential role which mathematics plays in resolving this problem is also stressed.