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The Crystallography Open Database (COD) is a database of crystal structures. [1] Unlike similar crystallographic databases , the database is entirely open-access, with registered users able to contribute published and unpublished structures of small molecules and small to medium-sized unit cell crystals to the database.
Boyce–Codd normal form. Boyce–Codd normal form (BCNF or 3.5NF) is a normal form used in database normalization. It is a slightly stricter version of the third normal form (3NF). By using BCNF, a database will remove all redundancies based on functional dependencies.
Codd's 12 rules. Codd's twelve rules[1] are a set of thirteen rules (numbered zero to twelve) proposed by Edgar F. Codd, a pioneer of the relational model for databases, designed to define what is required from a database management system in order for it to be considered relational, i.e., a relational database management system (RDBMS). [2][3 ...
Small molecules (most of entries have <100 atoms) major conformers with its 3D and easy search on them. M. good correlated with PubChem on data that is available on PubChem. "HugeMDB". 102 million. ICSC. ILO International Chemical Safety Cards. International Labour Organization.
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A crystallographic database is a database specifically designed to store information about the structure of molecules and crystals. Crystals are solids having, in all three dimensions of space, a regularly repeating arrangement of atoms, ions, or molecules. They are characterized by symmetry, morphology, and directionally dependent physical ...
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The Utah Data Center (UDC), also known as the Intelligence Community Comprehensive National Cybersecurity Initiative Data Center, [1] is a data storage facility for the United States Intelligence Community that is designed to store data estimated to be on the order of exabytes or larger. [2] Its purpose is to support the Comprehensive National ...