Results 31 to 40 of about 30,167,678 (291)

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

Synthesis of Vanadium-Vanadium Carbide in-situ nanocomposites by high energy ball milling and spark plasma sintering [PDF]

open access: yesScience of Sintering, 2016
In the present work, Vanadium-Vanadium Carbide (V-V2C) in-situ nanocomposites were synthesized by mechanically milling vanadium powders with 0.5 wt.% stearic acid.
Krishnan Vinoadh Kumar   +1 more
doaj   +1 more source

Classification of Hungarian medieval silver coins using x-ray fluorescent spectroscopy and multivariate data analysis [PDF]

open access: yes, 2013
A set of silver coins from the collection of Déri Museum Debrecen (Hungary) was examined by X-ray fluorescent elemental analysis with the aim to assign the coins to different groups with the best possible precision based on the acquired chemical ...
Anita Rácz   +7 more
core   +1 more source

Simulations of X-ray bursts and superbursts [PDF]

open access: yes, 2015
Observations of neutron star in binary systems provide powerful constrains on the physics at the surface of neutron stars. During the accretion of matter from the companion star, periodic nuclear explosion are triggered in the outer layers of the neutron
Fehlmann, Sofie
core   +1 more source

Synchrotron XRF analysis of element distribution in fossilized sauropod dinosaur bones

open access: yes, 2008
Sauropod dinosaurs were typically one magnitude larger than any other living or extinct terrestrial animal. This sheer size of the sauropod leads to scale effects in their biology and physiology that still are inadequately understood.
Sander, M.   +5 more
core   +4 more sources

Ovarian Sex Cord Stromal Tumors in Children and Adolescents—The European Standard Clinical Practice Recommendations

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT As part of the European Cooperative Study Group for Paediatric Rare Tumours initiative, we developed standard clinical practice guidelines for ovarian sex cord stromal tumors, based on comprehensive national and international cohort analyses, literature review, and a final expert consensus conference.
Dominik T. Schneider   +15 more
wiley   +1 more source

EXOSAT X-ray Light Curves of SS ARI [PDF]

open access: yesJournal of Astronomy and Space Sciences, 1998
We construct the X-ray light curves of the W UMa type contact binary SS Arietis (HD12929) from the EXOSAT data in HEASARC data archive. The phase dependent X-ray light curves obtained by using the ephemeris of Kaluzny & Pojmanski (1984) have been ...
Yonggi Kim
doaj  

Phase contrast imaging with a laboratory-based microfocus X-ray source [PDF]

open access: yes, 2007
This project looks at the design of an in-line X-ray phase contrast imaging system, based around the Bede Microsource®, on a suitable scale for imaging small pathological samples. The system is applied to two test objects to assess feasibility of its use
Kelly, Kathryn L, Kelly, Kathryn L.
core  

The planar cell polarity protein Vangl2 interacts with the PDZ‐domains of Scribble but not with a unique PDZ‐like domain in Inturned

open access: yesFEBS Letters, EarlyView.
Structural and biochemical characterisations show that the planar cell polarity (PCP) protein Inturned harbours a unique PDZ‐like domain that does not bind canonical PDZ‐binding motifs (PBMs) like that of another PCP protein Vangl2. In contrast, the apical‐basal polarity protein Scribble contains four PDZ domains that bind Vangl2, but one PDZ domain ...
Stephan Wilmes   +4 more
wiley   +1 more source

Condensed tables for x-ray fluorescence analysis. [PDF]

open access: yes, 1966
Condensed tables of 20 angles are provided which are simpler to use for many applications than the comprehensive tables already ...
Whittem, RN, Brockman, RH
core  

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