Results 31 to 40 of about 30,946 (215)

SnCl4/nano-sawdust as an Efficient Bio-based Catalyst for the Synthesis of 2-Substituted Benzothiazoles and Benzimidazoles [PDF]

open access: yesJournal of Nanostructures, 2019
SnCl4/nano-sawdust was prepared as a carbohydrate-based catalyst containing of tin bearing cellulose units. The catalyst was characterized by X-ray diffraction (XRD), fourier transform infrared spectroscopy (FT-IR), field emission scanning electron ...
Bi Bi Fatemeh Mirjalili   +3 more
doaj   +1 more source

Zernike phase contrast in scanning microscopy with X-rays [PDF]

open access: yesNature Physics, 2010
Scanning X-ray microscopy focuses radiation to a small spot and probes the sample by raster scanning. It allows information to be obtained from secondary signals such as X-ray fluorescence, which yields an elemental mapping of the sample not available in full-field imaging.
Christian, Holzner   +5 more
openaire   +2 more sources

Lignans in Knotwood of Norway Spruce: Localisation with Soft X-ray Microscopy and Scanning Transmission Electron Microscopy with Energy Dispersive X-ray Spectroscopy

open access: yesMolecules, 2020
Lignans are bioactive compounds that are especially abundant in the Norway spruce (Picea abies L. Karst.) knotwood. By combining a variety of chromatographic, spectroscopic and imaging techniques, we were able to quantify, qualify and localise the easily
Tuomas Mansikkala   +11 more
doaj   +1 more source

Fabrication and Characterization of Zinc Sulfide Nanoparticles and Nanocomposites Prepared via a Simple Chemical Precipitation Method [PDF]

open access: yesJournal of Nanostructures, 2016
In this research zinc sulfide (ZnS) nanoparticles and nanocomposites powders were prepared by chemical precipitation method using zinc acetate and various sulfur sources.
Kambiz Hedayati   +2 more
doaj   +1 more source

Soft X-ray scanning transmission X-ray microscopy (STXM) of actinide particles [PDF]

open access: yesAnalytical and Bioanalytical Chemistry, 2005
A descriptive account is given of our most recent research on the actinide dioxides with the Advanced Light Source Molecular Environmental Science (ALS-MES) Beamline 11.0.2 soft X-ray scanning transmission X-ray microscope (STXM) at the Lawrence Berkeley National Laboratory (LBNL).
Nilsson, Hans J.   +4 more
openaire   +3 more sources

Spectroscopic, Magnetic and Morphological studies of MgFe2O4 Nanopowder

open access: yesФізика і хімія твердого тіла, 2023
Spinel type nano ferrite compound MgFe2O4 was synthesized through sol gel technique using metal nitrates as precursors. The phase composition, morphology and elemental analysis of magnesium ferrite (MgFe2O4) were performed by X-ray diffraction, fourier ...
Farhana Naaz   +3 more
doaj   +1 more source

Analysis of Cr(VI) Bioremediation by Citrobacter freundii Using Synchrotron Soft X-ray Scanning Transmission X-ray Microscopy

open access: yesQuantum Beam Science, 2021
Scanning transmission X-ray microscopy (STXM) was utilized for analysing the bioremediation of Cr(VI) by Citrobacter freundii, a species of gram-negative bacteria.
Amith G. Anil   +3 more
doaj   +1 more source

INVASTIGATION INTO NANOSTRUCTURED FUNCTIONAL COATINGS FOR DIFFERENT APPLICATIONS BY USING OPERATIVE METHODS OF CONTROLE [PDF]

open access: yesФизико-химические аспекты изучения кластеров, наноструктур и наноматериалов, 2012
This paper describes methods, used in FSUE “CRISM “Prometey”, such as scanning electron microscopy, X-ray diffractometry, scanning probe microscopy, optical microscopy, X-ray fluorescent elemental analysis and others for analysis of designed coatings ...
A.K. Mazeeva   +5 more
doaj  

Sediment tolerance mechanisms identified in sponges using advanced imaging techniques [PDF]

open access: yesPeerJ, 2017
Terrestrial runoff, resuspension events and dredging can affect filter-feeding sponges by elevating the concentration of suspended sediments, reducing light intensity, and smothering sponges with sediments. To investigate how sponges respond to pressures
Brian W. Strehlow   +7 more
doaj   +2 more sources

Corrosion Behavior of Hastelloy® C-2000® Ni-Cr-Mo-Fe Alloys in the Entrained-Flow Coal Gasification Syngas Plants [PDF]

open access: yesArchives of Metallurgy and Materials, 2020
A mechanistic exposure experiment was performed on the commercially available and welded Ni-Cr-Mo-Fe alloy samples used in the piping materials of the coal gasification pilot plant.
Sungkyu Lee   +6 more
doaj   +1 more source

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