Results 21 to 30 of about 510,094 (313)

Diagnosing and mapping pulmonary emphysema on X-ray projection images [PDF]

open access: yes, 2013
To assess whether grating-based X-ray dark-field imaging can increase the sensitivity of X-ray projection images in the diagnosis of pulmonary emphysema and allow for a more accurate assessment of emphysema distribution.
Pfeiffer, Franz   +16 more
core   +1 more source

X-ray and Thermal Analysis of Selected Drugs Containing Acetaminophen

open access: yesMolecules, 2020
Studies carried out by X-ray and thermal analysis confirmed that acetaminophen (paracetamol), declared by the manufacturers as an Active Pharmaceutical Ingredient (API), was present in all studied medicinal drugs.
Izabela Jendrzejewska   +4 more
doaj   +1 more source

Imaging of metastatic lymph nodes by X-ray phase-contrast micro-tomography. [PDF]

open access: yesPLoS ONE, 2013
Invasive cancer causes a change in density in the affected tissue, which can be visualized by x-ray phase-contrast tomography. However, the diagnostic value of this method has so far not been investigated in detail.
Torben Haugaard Jensen   +13 more
doaj   +1 more source

Influence of High-Temperature Oxidizing Conditions on AlCoCrCuNi High Entropy Alloys with and without Silicon Addition [PDF]

open access: yesArchives of Metallurgy and Materials, 2022
Initial investigations on oxidation behaviour and phase transformations of equimolar AlCoCrCuNi high entropy alloy with and without 1 at.% silicon addition during 24-hr exposure to air atmosphere at 1273 K was carried out in this work.
R. Gawel   +3 more
doaj   +1 more source

Micro- and nanostructure of human teeth : a synchrotron radiation-based X-ray study [PDF]

open access: yes, 2014
The anisotropic composite nature of human teeth guarantees their function for decades under high mechanical loads and adverse chemical conditions. Even more so since only marginal remodelling and repair mechanisms take place in adult teeth.
Deyhle, Hans
core   +1 more source

Determination of metallization degree of pre-reduced chromite with image and rietveld analysis [PDF]

open access: yesJournal of Mining and Metallurgy. Section B: Metallurgy, 2020
Metallization degree of pre-reduced chromite was determined using two methods. The chromite samples were reduced in the solid state by methane-hydrogen gas mixtures.
Leino T., Taskinen P., Eric R.H.
doaj   +1 more source

Acquisition of a single grid-based phase-contrast X-ray image using instantaneous frequency and noise filtering

open access: yesBioMedical Engineering OnLine, 2022
Background To obtain phase-contrast X-ray images, single-grid imaging systems are effective, but Moire artifacts remain a significant issue. The solution for removing Moire artifacts from an image is grid rotation, which can distinguish between these ...
Jae-Suk Yang   +2 more
doaj   +1 more source

Advances in martensitic transformations in Cu-based shape memory alloys achieved by in situ neutron and synchrotron X-ray diffraction methods [PDF]

open access: yes, 2012
This article deals with the application of several X-ray and neutron diffraction methods to investigate the mechanics of a stress induced martensitic transformation in Cu-based shape memory alloy polycrystals. It puts experimental results obtained by two
Sophie Berveiller   +7 more
core   +1 more source

Effect of (CuPb)x Substitution on Tc of Bi2-x(CuPb)x Sr2Ca2Cu3O10+δ Superconductors [PDF]

open access: yesEngineering and Technology Journal, 2012
High temperature superconductors with a nominal composition Bi2-x (CuPb) xSr2Ca2Cu3O10+δ for (0≤x≤0.5) were prepared by solid state reaction method. The effect of (CuPb) x substitution on Tc of Bi2-x(CuPb)xSr2Ca2Cu3O10+δ compound has been investigated by
Bushra Salman Mahdi
doaj   +1 more source

Phase-sensitive nuclear target spectroscopy

open access: yesPhysical Review Research, 2020
Mössbauer nuclei feature exceptionally narrow resonances at hard x-ray energies, which render them ideal probes for structure and dynamics in condensed-matter systems, and a promising platform for x-ray quantum optics and fundamental tests.
Benedikt Herkommer, Jörg Evers
doaj   +1 more source

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