Results 71 to 80 of about 18,341,611 (236)
Dense packing crystal structures of physical tetrahedra
, 2010 We present a method for discovering dense packings of general convex hard particles and apply it to study the dense packing behavior of a one-parameter family of particles with tetrahedral symmetry representing a deformation of the ideal mathematical ...
E. Meissner +5 more
core +1 more source
Crystal structure analysis of intermetallic compounds [PDF]
, 1968 Study concerns crystal structures and lattice parameters for a number of new intermetallic compounds. Crystal structure data have been collected on equiatomic compounds, formed between an element of the Sc, Ti, V, or Cr group and an element of the Co or ...
Conner, R. A., Jr. +2 more
core +1 more source
Variational coupled mode theory and perturbation analysis for 1D photonic crystal structures using quasi-normal modes [PDF]
, 2008 Quasi-normal modes are used to directly characterize defect resonances in composite 1D Photonic Crystal structures. Variational coupled mode theory using QNMs enables quantification of the eigenfrequency splitting in composite structures.
Groesen, E. van +2 more
core +1 more source
The crystal structures of four dimethoxybenzaldehyde isomers
Acta Crystallographica Section E: Crystallographic Communications, 2019 The crystal structures of four dimethoxybenzaldehyde (C9H10O3) isomers, namely the 2,3-, 2,4-, 2,5- and 3,5- isomers, are reported and compared to the previously reported crystal structures of 3,4-dimethoxybenzaldehyde and 2,6-dimethoxybenzaldehyde.
Sander J. T. Brugman +5 more
doaj +1 more source
Toward the Jamming Threshold of Sphere Packings: Tunneled Crystals
, 2007 We have discovered a new family of three-dimensional crystal sphere packings that are strictly jammed (i.e., mechanically stable) and yet possess an anomalously low density.
Conway J. H. +4 more
core +1 more source
Crystal structures of the human adiponectin receptors
Nature, 2015 Adiponectin stimulation of its receptors, AdipoR1 and AdipoR2, increases the activities of 5′ AMP-activated protein kinase (AMPK) and peroxisome proliferator-activated receptor (PPAR), respectively, thereby contributing to healthy longevity as key anti ...
H. Tanabe +23 more
semanticscholar +1 more source
Introducing a novel crystal form of pyruvic acid thiosemicarbazone and its sodium salt [PDF]
Journal of the Serbian Chemical SocietyThe reaction of thiosemicarbazide and sodium pyruvate has been thoroughly studied and the novel crystal form of pyruvic acid thiosemicarbazone (H2pt) and its sodium salt was obtained.
Belošević Svetlana K. +6 more
doaj +1 more source
Computing stoichiometric molecular composition from crystal structures
Journal of Applied Crystallography, 2015 An algorithm to compute stoichiometrically correct molecular formulae from crystal structures is proposed. The algorithm’s output is suitable for high-volume automated searches in chemical databases and for linking crystallographic and chemical ...
S. Gražulis +3 more
semanticscholar +1 more source
Amplitude expansion of the binary phase field crystal model
, 2009 Amplitude representations of a binary phase field crystal model are developed for a two dimensional triangular lattice and three dimensional BCC and FCC crystal structures.
K. A. Jackson +7 more
core +1 more source
Crystal structures of a double-barrelled fluoride ion channel
Nature, 2015 To contend with hazards posed by environmental fluoride, microorganisms export this anion through F−-specific ion channels of the Fluc family. Since the recent discovery of Fluc channels, numerous idiosyncratic features of these proteins have been ...
R. Stockbridge +6 more
semanticscholar +1 more source