Results 21 to 30 of about 121,325 (308)

The Activation of Mg Powder Promoted by Chloride and Activation Mechanism

open access: yesMetals, 2021
Magnesium has bright market prospects such as generating thrust for under water engines and hydrogen production. However, the passive oxide film on the surface of magnesium powder prevents the further reaction of magnesium with water at room temperature.
Xiaoxuan Wang   +7 more
doaj   +1 more source

In-situ Analysis of Laminated Composite Materials by X-ray Micro-Computed Tomography and Digital Volume Correlation [PDF]

open access: yes, 2013
The complex mechanical behaviour of composite materials, due to internal heterogeneity and multi-layered composition impose deeper studies. This paper presents an experimental investigation technique to perform volume kinematic measurements in composite ...
A Germaneau   +32 more
core   +3 more sources

Overcoming the fragility – X-ray computed micro-tomography elucidates brachiopod endoskeletons [PDF]

open access: yesFrontiers in Zoology, 2014
The calcareous shells of brachiopods offer a wealth of informative characters for taxonomic and phylogenetic investigations. In particular scanning electron microscopy (SEM) has been used for decades to visualise internal structures of the shell. However, to produce informative SEM data, brachiopod shells need to be opened after chemical removal of the
Seidel, Ronald, Lüter, Carsten
openaire   +4 more sources

Precision Phenotyping of Nectar-Related Traits Using X-ray Micro Computed Tomography

open access: yesCells, 2022
Flower morphologies shape the accessibility to nectar and pollen, two major traits that determine plant–pollinator interactions and reproductive success.
Laurent Begot   +7 more
doaj   +1 more source

X-ray fluorescence micro-tomography and laminography using an x-ray scanning microscope

open access: yesJournal of Physics: Conference Series, 2009
Using a scanning microscope with a zone plate, x-ray fluorescence micro-tomography was investigated at SPring-8 BL20XU. A 120 nm-thick zinc layer could be resolved in the reconstructed section image. A frozen phytoplankton and a iron impurity of a diamond could be also reconstructed. X-ray fluorescence laminography was tested at SPring-8 BL47XU.
N Watanabe   +5 more
openaire   +1 more source

Terahertz Computed Tomography of NASA Thermal Protection System Materials [PDF]

open access: yes, 2012
A terahertz axial computed tomography system has been developed that uses time domain measurements in order to form cross-sectional image slices and three-dimensional volume renderings of terahertz-transparent materials. The system can inspect samples as
Rauser, R. W.   +4 more
core   +2 more sources

Fast Projection Matching for X-ray Tomography

open access: yesScientific Reports, 2017
X-ray 3D tomographic techniques are powerful tools for investigating the morphology and internal structures of specimens. A common strategy for obtaining 3D tomography is to capture a series of 2D projections from different X-ray illumination angles of ...
Chun-Chieh Wang   +5 more
doaj   +1 more source

Evaluation of Collateral Source Characteristics With 3‐Dimensional Analysis Using Micro–X‐Ray Computed Tomography

open access: yesJournal of the American Heart Association: Cardiovascular and Cerebrovascular Disease, 2018
BackgroundCollateral arteries provide an alternative blood supply and protect tissues from ischemic damage in patients with peripheral artery disease. However, the mechanism of collateral artery development is difficult to validate.
Yuichiro Arima   +16 more
doaj   +1 more source

Transfer of Individual Micro- and Nanoparticles for High- Precision 3D Analysis Using 360° Electron Tomography [PDF]

open access: yes, 2018
A versatile approach is demonstrated, providing a general routine for an extensive and advanced 3D characterization of individually selected micro- and nanoparticles, enabling the combination of complementary and scale-bridging techniques ...
Aert   +55 more
core   +1 more source

X-ray Micro-CT based characterization of rock cuttings with deep learning

open access: yesApplied Computing and Geosciences
Rock cuttings from destructive boreholes are a common and cheaper source of drilling materials that can be used to determine underground geology compared to rock core samples.
Nils Olsen   +4 more
doaj   +1 more source

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