Results 41 to 50 of about 447,439 (374)
An insight into the microstructures and composition of 2,700 m-depth deep-sea limpet shells
Frontiers in Marine Science, 2022 Structural and physiochemical properties contribute to the biological adaptation of deep-sea animals to their harsh living environment but have hardly been investigated systematically.
Zhehan Ying +16 more
doaj +1 more source
Zeitschrift für Kristallographie, 2012 We summarize exploratory work on multigrain crystallography. The experimental arrangement comprises a monochromatic beam, a fully illuminated sample with up to several hundred grains in transmission geometry on a rotary table and a 2D detector. Novel algorithms are presented for indexing, integration and filtering with emphasis on handling the ...
Sørensen, Henning Osholm +10 more
openaire +5 more sources
Quantum crystallographic charge density of urea [PDF]
, 2016 Standard X-ray crystallography methods use free-atom models to calculate mean unit cell charge densities. Real molecules, however, have shared charge that is not captured accurately using free-atom models.
Wall, Michael E.
core +6 more sources
Applications of X-ray Powder Diffraction in Protein Crystallography and Drug Screening
Crystals, 2020 Providing fundamental information on intra/intermolecular interactions and physicochemical properties, the three-dimensional structural characterization of biological macromolecules is of extreme importance towards understanding their mechanism of action.
Maria Spiliopoulou +6 more
doaj +1 more source
Near IR luminescent rare earth 3,4,5,6-tetrafluoro-2-nitrophenoxide complexes: Synthesis, X-ray crystallography and spectroscopy [PDF]
, 2008 NOTICE: this is the author’s version of a work that was accepted for publication in Near IR luminescent rare earth 3,4,5,6-tetrafluoro-2-nitrophenoxide complexes: Synthesis, X-ray crystallography and spectroscopy.
Abrahams, I +5 more
core +1 more source
Fluorescent Bis(guanidine) Copper Complexes as Precursors for Hydroxylation Catalysis
Inorganics, 2018 Bis(guanidine) copper complexes are known for their ability to activate dioxygen. Unfortunately, until now, no bis(guanidine) copper-dioxygen adduct has been able to transfer oxygen to substrates.
Florian Strassl +8 more
doaj +1 more source
Characterization of crystal structure and precipitation crystallography of a new MgxAl2-xGd phase in Mg97Al1Gd2 alloy [PDF]
Journal of applied crystallography, 2016, 2016 The composition, crystal structure and precipitation crystallography of a newly found precipitate are characterized by a Cs-corrected scanning transmission electron microscopy (STEM). The composition of the plate-like precipitate could be expressed as MgxAl2-xGd (x = 0.38), and its crystal structure is the same as the fcc type Laves phases Mg2Gd and ...
arxiv +1 more source
Quasi-Periodic Crystals—The Long Road from Discovery to Acceptance
Rambam Maimonides Medical Journal, 2013 [Extract] Three surprising discoveries on the nature of matter and its properties were published in the mid-1980s. All these discoveries led to Nobel prizes. The first discovery was in 1985, when fullerenes were discovered by Robert F.
Daniel Schechtman
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The Crystallography of Strange Quark Matter [PDF]
, 2006 Cold three-flavor quark matter at large (but not asymptotically large) densities may exist as a crystalline color superconductor. We explore this possibility by calculating the gap parameter Delta and free energy Omega(Delta) for possible crystal ...
Casalbuoni R +10 more
core +2 more sources
Frontiers in Earth Science, 2018 Although carbonate-precipitating cyanobacteria are ubiquitous in aquatic ecosystems today, the criteria used to identify them in the geological record are subjective and rarely testable.
Jan-Filip Päßler +3 more
doaj +1 more source