Results 291 to 300 of about 131,197 (331)

Dihedral angle study in Hesperidin using NMR Spectroscopy

Magnetic Resonance in Chemistry, 2017
Hesperidin is flavonoid molecule found in citrus fruits (Citrus reticulata), especially difficult to extract, classify and characterize. Present work is to study the unresolved relative configuration of Hesperidin through the dihedral angle, coupling constant and different NMR techniques.
Yashwantsinh S, Jadeja, Khushal M, Kapadiya, Hetal J, Jebaliya, Anamik K, Shah, Ranjan C, Khunt   +4 more
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Dihedral Angle Distribution of Amorphous Germanium

TETRAHEDRALLY BONDED AMORPHOUS SEMICONDUCTORS: International Conference, 1974
A theory is presented in which the radial distribution function (RDF) of an amorphous solid is considered to be the sum of a series of shells of n‐bond neighbors. Application of the theory to the structure of amorphous Ge accounts quantitatively for the experimental RDF out to a radius of 6A.
openaire   +1 more source

Vibrational Bethe Lattice with Random Dihedral Angles

Physical Review Letters, 1984
Solution analytique pour les vibrations d'un reseau de Bethe possedant un ensemble aleatoire non correle d'angles diedres {φ i }. Bon accord avec les spectres Raman de SiO 2 vitreuse.
R. A. Barrio, F. L. Galeener, E. Martinez   +2 more
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Dihedral Angles of the Cycloheptane Ring

Australian Journal of Chemistry, 1988
A method is described for calculating sets of dihedral angles in a seven- membered ring with equal tetrahedral bond angles and equal bond lengths. Representative values are given for the separate chair and boat manifolds of solutions.
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Dihedral angle database based on disulfide bonds

Proceedings. Fourth IEEE Symposium on Bioinformatics and Bioengineering, 2004
Dihedral angle databases are protein databases that store all occurring dihedral angle (phi, psi) values of amino acids in proteins. None of the existing dihedral angle databases have classified their data based on an important bonding characteristic of proteins called disulfide bonds.
S. Dayalan, S. Bevinakoppa
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On teaching dihedral angle and steradian

The Mathematics Teacher, 1958
An extension of the method of defining a plane angle analytically to the definitions of a dihedral angle and the steradian.
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The dihedral angle of 2‐(trifluoromethyl)phenothiazine

Journal of Heterocyclic Chemistry, 1976
AbstractThe structure of 2‐(trifluoromethyl)phenothiazine, C13H8NSF3, was determined by single crystal X‐ray diffraction. The molecule crystallizes in space group P212121, with a = 7.766(2), b = 5.957(1), and c = 23.499(5)Å. The final R value is 0.073.
D. W. Phelps, A. W. Cordes
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An Embedded Flexible Polyhedron with Nonconstant Dihedral Angles

Siberian Mathematical Journal
In this article, a \textit{polyhedron} is a compact polyhedral surface with or without boundary in the Euclidean \(3\)-space \({\mathbb{R}}^3\) whose faces are all triangles and which can have self-intersections of any type. A polyhedron \(P\) is \textit{flexible} if its spatial shape can be changed continuously only by altering its dihedral angles ...
V. A. Alexandrov, E. P. Volokitin
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Solvability of Nonlocal Elliptic Problems in Dihedral Angles

Mathematical Notes, 2002
Here the author proposes new approach to studying nonlocal problems based on the Green's formula and conjugate nonlocal problems. Such an approach allows him to remove additional constraints on the corresponding ``local'' model problem and to obtain necessary and sufficient conditions for the Fredholm solvability of nonlocal problems in plane angles ...
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Straightening out the dihedral angles

Trends in Biochemical Sciences, 1993
Clauwaert, Julius, Xia, J.Z.
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