Results 51 to 60 of about 318,010 (213)

X‐ray Stain Localization with Near‐Field Ptychographic Computed Tomography

Advanced Science, 2022
Although X‐ray contrast agents offer specific characteristics in terms of targeting and attenuation, their accumulation in the tissue on a cellular level is usually not known and difficult to access, as it requires high resolution and sensitivity.
Kirsten Taphorn, Madleen Busse, Johannes Brantl, Benedikt Günther, Ana Diaz, Mirko Holler, Martin Dierolf, Doris Mayr, Franz Pfeiffer, Julia Herzen   +9 more
doaj   +1 more source

An x-ray tomography facility for quantitative prediction of mechanical and transport properties in geological, biological, and synthetic systems

, 2004
A fully integrated X-ray tomography facility with the ability to generate tomograms with 20483 voxels at 2 micron spatial resolution was built to satisfy the requirements of a virtual materials testing laboratory.
Arthur Sakellariou, Rob M. Sok, Anthony C. Jones, Senden, Tim J., Christoph H. Arns, Limaye, Ajay, Sheppard, Adrian P., Tim J. Sawkins, Ray J. Roberts, Sakellariou, Arthur, Adrian P. Sheppard, Knackstedt, Mark A., Arns, Christoph H., Ajay Limaye, Jones, Anthony C., Sok, Rob M., Tim J. Senden, Sawkins, Tim J., Turner, Michael L., Mohammad Saadatfar, Roberts, Ray J., Saadatfar, Mohammad, Mark A. Knackstedt, Michael L. Turner   +23 more
core   +1 more source

MicroCT reveals domesticated rice (Oryza sativa) within pottery sherds from early Neolithic sites (4150–3265 cal BP) in Southeast Asia

Scientific Reports, 2017
Rice (Oryza sativa) was domesticated in the Yangtze Valley region at least 6000–8000 years ago, yet the timing of dispersal of domesticated rice to Southeast Asia is contentious.
Aleese Barron, Michael Turner, Levi Beeching, Peter Bellwood, Philip Piper, Elle Grono, Rebecca Jones, Marc Oxenham, Nguyen Khanh Trung Kien, Tim Senden, Tim Denham   +10 more
doaj   +1 more source

X-ray computed tomography data structure tensor orientation mapping for finite element models - STXAE [PDF]

, 2022
Accurate modelling of fibre-reinforced composites requires anisotropic material models. Structure tensor analysis of X-ray 3D images has been shown to provide fast and robust estimation of local structural orientations in fibre-reinforced composites.
Dahl, Vedrana A., Dahl, Vedrana Andersen,, Dahl, Vedrana Andersen, Mikkelsen, Lars,, Asp, Leif E., Mikkelsen, Lars, Auenhammer, Robert M., Auenhammer, Robert, Jeppesen, Niels, Mikkelsen, Lars Pilgaard, Asp, Leif, Asp, Leif,, Jeppesen, Niels,, Auenhammer, Robert,   +13 more
core   +1 more source

Two-view topogram-based anatomy-guided CT reconstruction for prospective risk minimization

Scientific Reports
To facilitate a prospective estimation of the effective dose of an CT scan prior to the actual scanning in order to use sophisticated patient risk minimizing methods, a prospective spatial dose estimation and the known anatomical structures are required.
Chang Liu, Laura Klein, Yixing Huang, Edith Baader, Michael Lell, Marc Kachelrieß, Andreas Maier   +6 more
doaj   +1 more source

X-ray induced acoustic computed tomography

Photoacoustics, 2020
X-ray imaging has proved invaluable in medical diagnoses and non-destructive testing (NDT) in the past century. However, there remain two major limitations: radiation harm and inaccessibility to the sample.
P. Samant, L. Trevisi, X. Ji, L. Xiang
doaj   +1 more source

X-ray computed tomography for composites

, 2014
Presentation made at the 53rd Annual Conference of the British Institute of Non-Destructive Testing at Manchester on September 10 2014.
Léonard, Fabien, Stein, Jasmin, Gresil, Matthieu, Constantinos Soutis   +3 more
openaire   +2 more sources

Analyses non destructives par tomographie à rayons X

Les Nouvelles de l’Archéologie, 2020
X-ray imaging techniques benefit from developments in physics, mathematics, and computer science, and provide analytical tools to study 3D internal structures of a wide range of objects.
Patricia Wils
doaj   +1 more source

Ground-truth verification of dynamic x-ray micro-tomography images of fluid displacement

, 2012
X-ray micro computed tomography (jtCT) is a method of choice for the non-destructive imaging of static 3d samples. A fundamental constraint of conventional X-ray jtCT is that the sample must remain static during data acquisition.
Sheppard, Adrian, Trond Varslot, Herring, Anna, Glenn Myers, Adrian Sheppard, Kingston, Andrew, Myers, Glenn, Anna Herring, Andrew Kingston, Varslot, Trond   +9 more
core   +1 more source

Computed tomography-osteoabsorptiometry for assessing the density distribution of subchondral bone as a measure of long-term mechanical adaptation in individual joints [PDF]

, 1989
To estimate subchondral mineralisation patterns which represent the long-term loading history of individual joints, a method has been developed employing computed tomography (CT) which permits repeated examination of living joints.
Müller-Gerbl, Magdalena, Wimmer, Berthold, Hodapp, Norbert, Putz, Reinhard, Schulte, Erik   +4 more
core   +1 more source