Results 11 to 20 of about 225,621 (265)

Structural and functional properties of indica rice starch as influenced by late-stage nitrogen fertilization

open access: yesInternational Journal of Food Properties, 2021
Late-stage nitrogen (N) fertilization is an important crop management for improving rice production and also affects the quality of rice, whereas information on the influence of late N on structural and functional properties of indica rice starch is ...
Bin Teng   +7 more
doaj   +1 more source

Comparison of Spatial Structures and Packaging of Phosphorybosil Pyrophosphate Synthetase 2 from Thermus thermophilus HB27 in Rhombohedral and Tetragonal Crystals

open access: yesCrystals, 2021
We report the spatial structure of phosphoribosyl pyrophosphate synthetase 2 from the thermophilic bacterium Thermus thermophilus HB27 (TthPRPPS2) obtained at a 1.85 Å resolution using a diffraction set collected from rhombohedral crystals (space group ...
Yulia Abramchik   +9 more
doaj   +1 more source

The Crystalline Structure of Benzene [PDF]

open access: yesNature, 1928
Abstract In a previous communication the writer gave the preliminary results of an investigation on the structure of solid benzene. It may be recalled that the unit cell was found to have the following dimensions at —22° C. ; a = 7·44, b = 9·65, c = 6·81 Å.
openaire   +2 more sources

Structure, Solubility and Stability of Orbifloxacin Crystal Forms: Hemihydrate versus Anhydrate

open access: yesMolecules, 2016
Orbifloxacin (ORBI) is a widely used antimicrobial drug of the fluoroquinolone class. In the official pharmaceutical compendia the existence of polymorphism in this active pharmaceutical ingredient (API) is reported.
Olimpia Maria Martins Santos   +4 more
doaj   +1 more source

Structure and Molecular Dynamics in Metal-Containing Polyamide 6 Microparticles

open access: yesCrystals, 2022
Polymer microparticles are used in additive manufacturing, separation and purification devices, biocatalysis, or for the recognition of biomolecules. This study reports on the effect of metal fillers on the structure and molecular dynamics of polyamide 6
Filipa M. Oliveira   +3 more
doaj   +1 more source

The Crystalline Structure of Pt3O4

open access: yesThe Journal of Chemical Physics, 1941
By x-ray diffraction, the chemical formula and crystal structure of Pt3O4 have been established. The crystal lattice has a body-centered cube symmetry. The edges of the cubes are 6.226A long, and there are two molecules per unit cell. A chemical method for preparing this oxide has been given by Jörgensen but Wöhler claims that the compound thus ...
Galloni, E.E., Roffo Jr., A.E.
openaire   +3 more sources

FORMATION OF HYBRID CARBON sp2 AND sp3 PHASES FROM GRAPHENE LAYERS L4-8

open access: yesФизико-химические аспекты изучения кластеров, наноструктур и наноматериалов, 2014
In this paper research of carbon compounds is connected, which can be obtained as a result of partial cross-linking of graphene layers L4−8 . It is established that after cross-linking and geometry optimization of graphene layers L4−8 only diamond-like ...
E.A. Belenkov, M.I. Tingaev
doaj   +1 more source

Fundamental studies of isotactic polypropylene composites with brown coals: Structure–properties relationship

open access: yesJournal of Natural Fibers, 2023
Wood–polymer composites (WPCs) are commonly used in materials technology, and there is a reasonable amount of research for new kinds of green fillers.
Joanna Szymańska   +4 more
doaj   +1 more source

Microstructure, Phase Evolution, and Chemical Behavior of CrCuFeNiTiAlx High Entropy Alloys Processed by Mechanical Alloying

open access: yesEntropy, 2023
High entropy alloys (HEAs) of the type CrCuFeNiTi-Alx were processed through mechanical alloying. The aluminum concentration was varied in the alloy, to determine its effect on the HEAs’ microstructure, phase formation, and chemical behavior.
Anay del Ángel-González   +7 more
doaj   +1 more source

Hybrid, Multiscale Numerical Simulations of the Equal Channel Angular Pressing (ECAP) using the Crystal Plasticity Theory [PDF]

open access: yesArchives of Metallurgy and Materials, 2023
The FEM simulations of the ECAP including real conditions of the process – the friction between the metal extruded and the die walls, as well as, the channels rounding, were done here in two scales – macro- and micro-.
Marta Wójcik
doaj   +1 more source

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