Results 61 to 70 of about 131,197 (331)
Rigidity of infinite disk patterns
, 1998 Let P be a locally finite disk pattern on the complex plane C whose combinatorics are described by the one-skeleton G of a triangulation of the open topological disk and whose dihedral angles are equal to a function \Theta:E\to [0,\pi/2] on the set of ...
He, Zheng-Xu
core +2 more sources
Side-chain conformational changes upon protein-protein association [PDF]
, 2010 Conformational changes upon protein-protein association are the key element of the binding mechanism. The study presents a systematic large-scale analysis of such conformational changes in the side chains.
Kirys, Tatsiana +3 more
core +2 more sources
Collision‐Resilient Winged Drones Enabled by Tensegrity Structures
Advanced Robotics Research, EarlyView.Based on structures of birds such as the woodpeck, this article presents the collision‐resilient aerial robot, SWIFT. SWIFT leverages tensegrity structures in the fuselage and wings which allow it to undergo large deformations in a crash, without sustaining damage. Experiments show that SWIFT can reduce impact forces by 70% over conventional structures.
Omar Aloui +5 more
wiley +1 more source
(E)-Benzyl(4-{[1-(prop-2-en-1-yl)-1H-1,2,3-triazol-4-yl]methoxy}benzylidene)amine
Acta Crystallographica Section E, 2014 The triazole ring of the title compound, C20H20N4O, is normal to the central benzene ring, making a dihedral angle of 90.0 (3)°, and forms a dihedral angle of 69.2 (3)° with the terminal phenyl ring.
Mehmet Akkurt +4 more
doaj +1 more source
Plagioclase Growth Rates Control Three-grain Junction Geometry in Dolerites and Gabbros [PDF]
Measurements of dihedral angles at three-grain junctions in gabbros, involving two grains of plagioclase and one grain of another mineral, demonstrate that the median dihedral angle is generally the same for all minerals in any sample. The few exceptions
Holness, Marian B.
core +1 more source
Origami‐Inspired Structural Design for Aquatic‐Terrestrial Amphibious Robots
Advanced Robotics Research, EarlyView.This work presents a lightweight amphibious origami robot actuated by a single shape memory alloy wire. A rigid foldable origami structure with displacement amplification enables efficient terrestrial crawling and aquatic swimming. The addition of fan‐shaped units allows controllable turning in both environments.
Weiqi Liu +5 more
wiley +1 more source
4,4-Difluoro-1,3,5,7-tetramethyl-4-bora-3a,4a-diaza-s-indacene
Acta Crystallographica Section E, 2008 In the title compound, C13H15BF2N2, the two pyrrole rings are almost coplanar, with a dihedral angle of 3.08 (10)°. The BF2 plane is almost perpendicular to the boron–dipyrromethene ring plane, with a dihedral angle of 89.99 (7 ...
Hai-Jun Xu
doaj +1 more source
Dihedral Angle Entropy Measures for Intrinsically Disordered Proteins [PDF]
The Journal of Physical Chemistry B, 2015 Protein stability is based on a delicate balance between energetic and entropic factors. Intrinsically disordered proteins (IDPs) interacting with a folded partner protein in the act of binding can order the IDP to form the correct functional interface by decrease in the overall free energy.
openaire +2 more sources
Directing the Mobility of Guest Molecules in Nanoporous Materials by Linearly Polarized Light
Advanced Science, EarlyView.The polarization of light is introduced as a further parameter to dynamically and reversibly control the properties of a photoresponsive nanoporous material. It was used to control the mobility of the guest molecules in the pores of a metal–organic framework.
Taher Al Najjar +11 more
wiley +1 more source
Dimethyl 2-nitrobiphenyl-4,4′-dicarboxylate
Acta Crystallographica Section E, 2014 The title compound, C16H13NO6, exhibits a biphenyl unit with a dihedral angle between the two aryl rings of 56.01 (5)°. The two ester groups vary slightly from planarity, with aryl–ester dihedral angles of 4.57 (5) and 16.73 (5)°.
Vanessa C. M. Vieira +3 more
doaj +1 more source