Crystallography Sentence Examples

The development of the theory of crystal structure, and the fundamental principles on which is based the classification of crystal forms, are treated in the article Crystallography; in the same place will be found an account of the doctrine of isomorphism, polymorphism and morphotropy.

For a detailed comparison of the isomorphous relations of the elements the reader is referred to P. von Groth, Chemical Crystallography.

The mensuration of the cube, and its relations to other geometrical solids are treated in the article Polyhedron; in the same article are treated the Archimedean solids, the truncated and snubcube; reference should be made to the article Crystallography for its significance as a crystal form.

Octahedra having triangular faces other than equilateral occur as crystal forms. See Polyhedron and Crystallography.

Bevelment, as a term of crystallography, means the replacement of an edge of a crystal by two planes equally inclined to the adjacent planes.

In crystallography, the regular or ordinary dodecahedron is an impossible form since the faces cut the axes in irrational ratios; the "pentagonal dodecahedron" of crystallographers has irregular pentagons for faces, while the geometrical solid, on the other hand, has regular ones.

Many other dodecahedra exist as crystal forms, for which see Crystallography.

Hemihedral forms are of special importance in crystallography, to which article the reader is referred for a fuller explanation of these and other modifications of polyhedra (tetartohedral, enantiotropic, &c.).

His earlier papers were mostly concerned with crystallography, and the reputation they gained him led to his appointment as Privatdozent at Konigsberg, where in 1828 he became extraordinary, and in 1829 ordinary, professor of mineralogy and physics.

In the article Crystallography the nature and behaviour of twinned crystals receives full treatment; here it is sufficient to say that when the planes and axes of twinning are planes and axes of symmetry, a twin would exhibit higher symmetry (but remain in the same crystal system) than the primary crystal; and, also, if a crystal approximates in its axial constants to 'a higher system, mimetic twinning would increase the approximation, and the crystal would be pseudo-symmetric.

A protein structure solved by X-ray crystallography is regarded as the gold standard to which all other structures are compared.

In geometry, and in geometrical crystallography, the term denotes a line which serves to aid the orientation of a figure.

Research areas include bioenergetics, molecular biology, fermentation, protein biochemistry, kinetic and paramagnetic spectroscopy and X-ray crystallography.

Despite an enormous effort, only about 4,000 of the structures are known, with most determined by X-ray crystallography.

Working in Oxford she used x-ray crystallography, a technique based on the diffraction of x-rays by crystals.

Headings include crystallography, chemical composition, physical and optical properties, as well as an alphabetical listing of mineral species.

Each year this covers one aspect of macromolecular crystallography.

John Warren will provide additional scientific support for small molecule crystallography.

In 1997 we are in an era of synchrotrons and nanosecond time-resolved protein crystallography.

Nobel prize for X-ray crystallography, shared with Dad, 1915.

They want to biology through X-ray crystallography is true of.

Extension of the direct methods approach to structure solving by X-ray or electron crystallography based on the principle of maximum entropy.

Astex Technology is a structure-based drug discovery company pioneering the use of high throughput X-ray crystallography.

I also advise the small molecule crystallography service in the Chemistry Department.

We are studying the structural biology of members of the serpin family of serine proteinase inhibitors using X-ray crystallography.

Details such as the absolute stereochemistry of tryptophan side chains, usually only available from high resolution X-ray crystallography, are also sometimes available.

X-ray crystallography can thus be used to determine three-dimensional protein structures.

X-ray crystallography is true of.

Working in Oxford she used X-ray crystallography, a technique based on the diffraction of x-rays by crystals.

Over 2000 enzymes are known and several hundred proteins have been crystallized and their detailed 3D structure determined by X-ray crystallography.

X-ray crystallographye determination x-ray protein crystallography is still the best tool available today.

The bisphenoids (the hemihedral forms of the tetragonal and rhombic bipyramids)., and the trigonal pyramid of the hexagonal system, are examples of non-regular tetrahedra (see Crystallography).

The actual values of the topic parameters can then readily be expressed in terms of the elements of the crystals (the axial ratios and angles), the density, and the molecular weight (see Groth, Physikalische Krystallographie, or Chemical Crystallography).

In crystallography the icosahedron is a possible form, but it has not been observed; it is closely simulated by a combination of the octahedron and pentagonal dodecahedron, which has twenty triangular faces, but only eight are equilateral, the remaining twelve being isosceles (see Crystallography).

The NWSGC members have a high level of collective experience in synchrotron based crystallography.

These characteristics are required for high throughput protein crystallography, where samples of unknown quality will arrive for screening and immediate data collection.

Over 2000 enzymes are known and several hundred proteins have been crystallized and their detailed 3D structure determined by x-ray crystallography.

In protein structure determination x-ray protein crystallography is still the best tool available today.

The Crystallography Center at NUI, Galway is dedicated to the determination of molecular structure by x-ray diffraction techniques.