Results 251 to 260 of about 23,824 (301)
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2021
Framboids are constituted by microcrystals with approximately log-normal size-frequency distributions, and 95% of framboidal microcrystals are between 0.1 and 3.1 μm. Nanocrystals are not generally observed in framboids. Packing efficiencies vary between close-packings in which the microcrystals occupy up to 74% of the framboid volume and random ...
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Framboids are constituted by microcrystals with approximately log-normal size-frequency distributions, and 95% of framboidal microcrystals are between 0.1 and 3.1 μm. Nanocrystals are not generally observed in framboids. Packing efficiencies vary between close-packings in which the microcrystals occupy up to 74% of the framboid volume and random ...
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Chemical Communications, 2020
A kind of organic microcrystal, 9,10-diphenylanthracene microcrystals (DPA MCs), was developed as a novel electrochemiluminescence (ECL) coreactant accelerator to efficiently catalyze dissolved O2 for more reactive oxygen species (ROSs) generation ...
Li Wang +4 more
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A kind of organic microcrystal, 9,10-diphenylanthracene microcrystals (DPA MCs), was developed as a novel electrochemiluminescence (ECL) coreactant accelerator to efficiently catalyze dissolved O2 for more reactive oxygen species (ROSs) generation ...
Li Wang +4 more
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, 2020
Organic–inorganic metal halide perovskites have achieved great success in applications such as light-emitting diodes, photodetectors (PDs) and solar cells due to their high light absorption coefficients, tunable band gaps and simple solution-process ...
Xiyan Pan +7 more
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Organic–inorganic metal halide perovskites have achieved great success in applications such as light-emitting diodes, photodetectors (PDs) and solar cells due to their high light absorption coefficients, tunable band gaps and simple solution-process ...
Xiyan Pan +7 more
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2021
Framboid microcrystals grow through surface reaction of S2(-II) or H2S with =FeS moieties at defect sites on the pyrite crystal surface. The surface energies of pyrite vary from the most stable cubic through octahedral to pyritohedral and dodecahedral surfaces.
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Framboid microcrystals grow through surface reaction of S2(-II) or H2S with =FeS moieties at defect sites on the pyrite crystal surface. The surface energies of pyrite vary from the most stable cubic through octahedral to pyritohedral and dodecahedral surfaces.
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Supramolecular chirality in peptide microcrystals
Chemical Communications, 2015VCD reveals supramolecular chirality in microcrystals of two peptide segments from human islet amyloid (IAPP, amylin). Previously such supramolecular chirality has been observed by VCD only for amyloid fibrils.
Dmitry, Kurouski +4 more
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A microcrystal method for the measurement of birefringence
, 2020Based on the interference principle, a special test process to measure polycrystalline birefringence was proposed and confirmed as an effective method for screening anisotropic micro-crystals.
Liling Cao +5 more
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Journal of Superhard Materials, 2020
Rare forms of diamond growth and dissolution are described using the example of diamond microcrystals from the Samotkan’ Neogene titanium–zirconium placer on the Ukrainian Shield. These include diamond crystals with complex faceting, microblock crystals, skeletal crystals, vertex-shaped crystals, crystals with natural dissolution, and ideal twins.
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Rare forms of diamond growth and dissolution are described using the example of diamond microcrystals from the Samotkan’ Neogene titanium–zirconium placer on the Ukrainian Shield. These include diamond crystals with complex faceting, microblock crystals, skeletal crystals, vertex-shaped crystals, crystals with natural dissolution, and ideal twins.
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Microcrystals of a Modified Fibrinogen
Nature, 1972Fibrinogen forms microcrystals after cleavage with an enzyme from Pseudomonas. Electron microscope images reveal a close relation between these structures and fibrin. The results support the view that no major intramolecular rearrangement occurs in the fibrinogen-fibrin conversion.
N M, Tooney, C, Cohen
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Ceramics International, 2019
Dressing experiments under different conditions were carried out on a vitrified bonded microcrystal alumina abrasive wheel with a single-grit diamond dresser. The grinding performance of the as-dressed abrasive wheels was investigated. The dressing force,
Min Li, W. Ding, Benkai Li, Jiu-hua Xu
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Dressing experiments under different conditions were carried out on a vitrified bonded microcrystal alumina abrasive wheel with a single-grit diamond dresser. The grinding performance of the as-dressed abrasive wheels was investigated. The dressing force,
Min Li, W. Ding, Benkai Li, Jiu-hua Xu
semanticscholar +1 more source
Raman scattering from microcrystals
Phase Transitions, 1990Abstract This review discusses the size effects on Raman scattering from microcrystals. For ionic microcrystals, the existence of surface phonon modes is predicted from electromagnetic theories. It is shown that Raman spectroscopy is very effective to detect the surface phonon modes.
S. Hayashi, K. Yamamoto
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