Results 31 to 40 of about 131,197 (331)

Feature selection for protein dihedral angle prediction

2017 9th International Conference on Computational Intelligence and Communication Networks (CICN), 2017
Three-dimensional structure prediction has crucial importance for bioinformatics and theoretical chemistry. One of the main steps of three-dimensional structure prediction is dihedral (torsion) angle prediction. As new feature extraction methods are developed the dimension of the input space increases considerably yielding longer model training and ...
Aydin, Zafer, Kaynar, Oguz, Gormez, Yasin   +2 more
openaire   +3 more sources

Andreev's Theorem on hyperbolic polyhedra [PDF]

, 2006
In 1970, E. M. Andreev published a classification of all three-dimensional compact hyperbolic polyhedra having non-obtuse dihedral angles. Given a combinatorial description of a polyhedron, $C$, Andreev's Theorem provides five classes of linear ...
Dunbar, William D., Hubbard, John H., Roeder, Roland K. W.   +2 more
core   +3 more sources

3-Methyl-5-phenyl-1-(3-phenylisoquinolin-1-yl)-1H-pyrazole

Acta Crystallographica Section E, 2010
The title compound, C25H19N3, is composed of an aryl-substituted pyrazole ring connected to an aryl-substituted isoquinoline ring system with a dihedral angle of 52.7 (1)° between the pyrazole ring and the isoquinoline ring system. The
F. Nawaz Khan, P. Manivel, Sriramakrishnaswamy Kone, Venkatesha R. Hathwar, Seik Weng Ng   +4 more
doaj   +1 more source

14-Ethoxy-4,6,9-trimethyl-8,12-dioxa-4,6-diazatetracyclo[8.8.0.02,7.013,18]octadeca-2(7),13,15,17-tetraene-3,5,11-trione

Acta Crystallographica Section E, 2013
In the title compound, C19H20N2O6, the pyrone and pyran rings adopt envelope conformations with the same common C atom as the flap, the dihedral angle between the planes of the remaining ring atoms being 68.27 (4)°.
G. Jagadeesan, D. Kannan, M. Bakthadoss, S. Aravindhan   +3 more
doaj   +1 more source

3,4-dimethylphenyl benzoate [PDF]

, 2014
In the title compound, C15H14O2, the terminal rings form a dihedral angle of 52.39(4)°. The mean plane of the central ester group [r.m.s. deviation = 0.0488Å] is twisted away from the benzene and phenyl rings by 60.10(4) and 8.67(9)°, respectively.
Kennedy, A.R., Moreno-Fuquen, R., Rendón, M.   +2 more
core   +1 more source

Effects of Bio-Inspired Wing Dihedral Variations on Dynamic Soaring Performance of Unmanned Aerial Vehicles

Drones
On the basis of a self-developed albatross imitation unmanned aerial vehicle (UAV), three different dihedral angle configurations for the wing’s mid and outer sections are explored: fixed at −50°, fixed at −5°, and varying arbitrarily between −50° and −5°
Hang Zhang, Shenwei Zhang, Tao Xiang
doaj   +1 more source

(E)-1-([1,1′-Biphenyl]-4-yl)-3-(2-methylphenyl)prop-2-en-1-one

Acta Crystallographica Section E, 2014
In the title molecule, C22H18O, the o-tolyl ring is connected through a conjugated double bond. The molecule adopts an E conformation and the C—C=C—C torsion angle is 178.77 (13)°.
D. Shanthi, T. Vidhya Sagar, M. Kayalvizhi, G. Vasuki, A. Thiruvalluvar   +4 more
doaj   +1 more source

(4-Nitrophenyl)methyl 2,3-dihydro-1H-pyrrole-1-carboxylate: crystal structure and Hirshfeld analysis [PDF]

, 2018
In the title compound, C12H12N2O4, the dihydropyrrole ring is almost planar (r.m.s. deviation = 0.0049 A ˚ ) and is nearly coplanar with the adjacent C2O2 residue [dihedral angle = 4.56 (9˚)], which links to the 4-nitrobenzene substituent [dihedral ...
Correia, Carlos Roque D., De Almeida Santos, Regina H., Garcia, Ariel L. L., Jotani, Mukesh M., Soto-Monsalve, Monica, Tiekink, Edward R. T. *, Zukerman-Schpector, Julio   +6 more
core   +2 more sources

(3,6-Dimethoxynaphthalen-2-yl)(naphthalen-2-yl)methanone

Acta Crystallographica Section E, 2012
In the title compound, C23H18O3, the dihedral angle between the two naphthalene ring systems is 78.02 (3)°. The bridging carbonyl C—C(=O)—C plane makes a dihedral angle of 70.56 (5)° with the ...
Takehiro Tsumuki, Shun Murohashi, Atsushi Nagasawa, Akiko Okamoto, Noriyuki Yonezawa   +4 more
doaj   +1 more source

Action-angle variables for dihedral systems on the circle

, 2010
A nonrelativistic particle on a circle and subject to a cos^{-2}(k phi) potential is related to the two-dimensional (dihedral) Coxeter system I_2(k), for k in N.
Armen Nersessian, Arnold, Barut, Bellucci, Bellucci, Calogero, Calogero, Calogero, Feher, Fichtenholz, Flügge, Galajinsky, Galajinsky, Goldstein, Hakobyan, Hakobyan, Higgs, Kastrup, Kastrup, Kastrup, Leemon, Olaf Lechtenfeld, Olshanetsky, Prudnikov, Quesne, Ruijenaars, Schrödinger, Schrödinger, Shander, Tremblay, Tremblay, Vahagn Yeghikyan, Witten, Woijechowski, Wolfes   +34 more
core   +1 more source