Hierarchical Calcite Crystals with Occlusions of a Simple Polyelectrolyte Mimic Complex Biomineral Structures
نویسندگان
چکیده
منابع مشابه
Simple Structures with Complex Symmetry
We define the automorphism spectrum of a computable structure M, a measurement of the complexity of the symmetries of M, and prove that certain sets of Turing degrees can be realized as automorphism spectra, while certain others cannot.
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ژورنال
عنوان ژورنال: Advanced Functional Materials
سال: 2012
ISSN: 1616-301X
DOI: 10.1002/adfm.201201158