angle structure
51Small-angle X-ray scattering — (SAXS) is a small angle scattering (SAS) technique where the elastic scattering of X rays (wavelength 0.1 ... 0.2 nm) by a sample which has inhomogeneities in the nm range, is recorded at very low angles (typically 0.1 10°). This angular range… …
52Bite angle — Chelate bite angle is a geometric parameter used to classify chelating ligands in inorganic and organometallic chemistry. Together with ligand cone angle, this parameter is relevant to diphosphine ligands, which are used in industrial processes… …
53Crystal structure — In mineralogy and crystallography, crystal structure is a unique arrangement of atoms or molecules in a crystalline liquid or solid. A crystal structure is composed of a pattern, a set of atoms arranged in a particular way, and a lattice… …
54Secondary structure prediction — is a set of techniques in bioinformatics that aim to predict the local secondary structures of proteins and RNA sequences based only on knowledge of their primary structure amino acid or nucleotide sequence, respectively. For proteins, a… …
55Magic angle spinning — Magic angle spinning: The sample (blue) is rotating with high frequency inside the main magnetic field (B0). The axis of rotation is tilted by the magic angle θm with respect to the direction of B0. In nuclear magnetic resonance, magic angle… …
56Dihedral angle — In aerospace engineering, the dihedral is the angle between the two wings; see Dihedral (aircraft). In geometry, a dihedral or torsion angle is the angle between two planes. Figure 1: Dihedral angle of three vectors, defined as an exterior… …
57Grazing-incidence small-angle X-ray scattering — (GISAXS) is a scattering technique most commonly done at synchrotron radiation facilities. A related technique also exists for neutron scattering (GISANS). 300px|thumb|right|Scheme 1: GISAXS scattering geometry. The incident beam strikes the… …
58Zipper (data structure) — Zipper is a purely functional data structure used in functional programming to solve some problems in a way using notions like “context” and “hole”. It is related to the generalization of notion “derivative” (for types). The zipper was described… …
59Generalized complex structure — In the field of mathematics known as differential geometry, a generalized complex structure is a property of a differential manifold that includes as special cases a complex structure and a symplectic structure. Generalized complex structures… …
60Wide angle X-ray scattering — (WAXS) or Wide angle X ray diffraction (WAXD) is an X ray diffraction technique that is often used to determine the crystalline structure of polymers. This technique specifically refers to the analysis of Bragg Peaks scattered to wide angles,… …
