Results 41 to 50 of about 1,811,886 (362)

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

open access: yesActa 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   +4 more
doaj   +1 more source

RaptorX-Angle: real-value prediction of protein backbone dihedral angles through a hybrid method of clustering and deep learning

open access: yesBMC Bioinformatics, 2018
Protein dihedral angles provide a detailed description of protein local conformation. Predicted dihedral angles can be used to narrow down the conformational space of the whole polypeptide chain significantly, thus aiding protein tertiary structure ...
Yujuan Gao   +3 more
semanticscholar   +1 more source

3,4-dimethylphenyl benzoate [PDF]

open access: yes, 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.   +2 more
core   +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

open access: yesActa 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   +3 more
doaj   +1 more source

Radially arranged dihedral corner reflector array for wide viewing angle of floating image without virtual image.

open access: yesOptics Express, 2019
We proposed a new type of dihedral corner reflector array (DCRA) called "radially arranged DCRA". Our radially arranged DCRA could display a floating, three-dimensional image with a wide viewing angle without producing virtual images because dihedral ...
Yuta Yoshimizu, E. Iwase
semanticscholar   +1 more source

Efficient and interpretable graph network representation for angle-dependent properties applied to optical spectroscopy

open access: yesnpj Computational Materials, 2022
Graph neural networks are attractive for learning properties of atomic structures thanks to their intuitive graph encoding of atoms and bonds. However, conventional encoding does not include angular information, which is critical for describing atomic ...
Tim Hsu   +8 more
semanticscholar   +1 more source

Dihedral angles of n-simplices

open access: yesApplied Mathematics Letters, 1992
It is proved that if \(\{v_ 1,\dots,v_ n\}\) is a set of orthogonal nonzero vectors in \(E^ n\), if \(F_ i\) is an \((n-1)\)-dimensional face of the \(n\)-simplex \([v_ 0,v_ 1,\dots,v_ n]\) for \(i=1,2,\dots,n\) and if \(\theta_{kl}\) is the dihedral angle between \(F_ k\) and \(F_ l\), then \(\Sigma\cos^ 2\theta_{kl}=1\). Also in the case of a regular
openaire   +2 more sources

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

open access: yesDrones
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

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

open access: yesActa 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   +4 more
doaj   +1 more source

Andreev's Theorem on hyperbolic polyhedra [PDF]

open access: yes, 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.   +2 more
core   +3 more sources

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