Results 171 to 180 of about 70,723 (326)

Some considerations on the center nuclei of snow crystals

open access: yesSome considerations on the center nuclei of snow crystals
P(論文) By adopting ultra-marine blue particles as standard material, a simple method for converting the X-ray intensity ratio in the energy spectra into the weight concentration ratio was developed. This method was applied to the center nuclei of snow crystals and airborne aerosol particles to find information on the origin of nuclei and particles.
openaire  

Multiple Twinning in Nacre and Aragonite

open access: yesAdvanced Functional Materials, EarlyView.
Electron backscatter diffraction map of a cluster of geologic aragonite, exhibiting single, double, and triple twins. The whole cluster is approximately 2 cm wide. Colors indicate crystal orientations, so that pixels where the a‐, b‐, and c‐axis is perpendicular to the image plane are green, red, and blue, respectively.
Connor A. Schmidt   +7 more
wiley   +1 more source

Introduction to the SAMPREP special issue. [PDF]

open access: yesActa Crystallogr F Struct Biol Commun
Gupta K.
europepmc   +1 more source

Mössbauer studies of the membrane-associated methane monooxygenase from Methylococcus capsulatus bath: evidence for a Diiron center.

open access: yesJournal of the American Chemical Society, 2007
M. Martinho   +5 more
semanticscholar   +1 more source

Maya Blue‐Inspired Hybrid Coating for Robust and Superhydrophilic Solar Evaporators Using Commercial Black Acrylic Paint

open access: yesAdvanced Functional Materials, EarlyView.
This study demonstrates a Maya blue‐inspired hybrid solar evaporator using commercial black acrylic paint, achieving 98% solar‐thermal conversion efficiency and 2.39 kg m−2 h−1 water evaporation rate through a durable, hydrophilic organic–inorganic structure that enables scalable, cost‐effective desalination and wastewater purification.
Dao Thi Dung   +5 more
wiley   +1 more source

The ESR of photosensitive paramagnetic centers in ZnS:Li single crystals

open access: yes, 2007
The object of this work is the analysis of influence of Li impurity on behaviour of the local photosensitive paramagnetic centers PPC Fe 3+ , Cr + , А-centers in ZnS single crystals. At present it is rather important to have materials as n- and p-type conductivity for creation new optoelectronic devices on the ZnS basis. Earlier it had been shown, that
Skuratoskaya, E.   +3 more
openaire   +1 more source

Insight into the Internal Structure of Biogenic, Synthetic and Geological Apatite by Electron Microscopy and X‐Ray Scattering

open access: yesAdvanced Functional Materials, EarlyView.
Apatite occurs in many forms in nature, e.g. in teeth and geological minerals. Internally, biological apatite contains nanocrystals that are also found in synthetically prepared calcium phosphate nanoparticles which are used in biomedicine, e.g. for gene and drug delivery and for bone regeneration. Abstract Calcium phosphate is the inorganic component (
Kathrin Kostka   +3 more
wiley   +1 more source

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