Results 41 to 50 of about 2,340,427 (274)

First diagnosis of septic arthritis in a dinosaur [PDF]

Royal Society Open Science, 2016
Identification and interpretation of pathologies in the fossil record allows for unique insights into the life histories of extinct organisms. However, the rarity of such finds limits not only the sample size for palaeopathologic studies, but also the ...
Jennifer Anné, Brandon P. Hedrick, Jason P. Schein   +2 more
doaj   +1 more source

Combining in-situ synchrotron X-ray microtomography and acoustic emission to characterize damage evolution in ceramic matrix composites

Journal of the European Ceramic Society, 2019
In-situ synchrotron X-ray microtomography and acoustic emission (AE) were combined to study the behavior of ceramic matrix composite laminates subjected to in-plane tensile or flexural loading at room temperature.
E. Maillet, A. Singhal, Ashley M. Hilmas, Yan Gao, Ying Zhou, G. Henson, G. Wilson   +6 more
semanticscholar   +1 more source

Fast microtomography using bright monochromatic x-rays [PDF]

Review of Scientific Instruments, 2012
A fast microtomography system for high-resolution high-speed imaging has been developed using bright monochromatic x-rays at the BL29XU beamline of SPring-8. The shortest scan time for microtomography we attained was 0.25 s in 1.25 μm effective pixel size by combining the bright monochromatic x-rays, a fast rotating sample stage, and a high performance
Jung, JW, Lee, JS, Kwon, N, Park, SJ, Chang, S, Kim, J, Pyo, J, Kohmura, Y, Nishino, Y, Yamamoto, M, Ishikawa, T, Je, JH   +11 more
openaire   +3 more sources

Laser-wakefield accelerators as hard x-ray sources for 3D medical imaging of human bone [PDF]

, 2015
A bright μm-sized source of hard synchrotron x-rays (critical energy Ecrit > 30 keV) based on the betatron oscillations of laser wakefield accelerated electrons has been developed.
Abel, RL, Alatabi, S, Bryant, JSJ, Cole, JM, Jin, A, Kneip, S, Lopes, NC, Mangles, SPD, Mecseki, K, Najmudin, Z, Poder, K, Symes, DR, Wood, J   +12 more
core   +1 more source

Investigation of particle breakage under one-dimensional compression of sand using X-ray microtomography

, 2020
Particle breakage alters particle-scale properties of granular soils including particle size, shape, and contact conditions, and changes macroscale properties including soil compressibility, shear ...
Budi Zhao, Jianfeng Wang, E. Andò, G. Viggiani, M. Coop   +4 more
semanticscholar   +1 more source

X-ray microtomographic characterization and quantification of the strain rate dependent failure mechanism in cenosphere epoxy syntactic foams [PDF]

, 2016
This work investigates the failure mechanism in cenosphere epoxy syntactic foams at the quasi-static and dynamic strain rates. Split-Hopkinson pressure bar experiments are controlled to stop dynamic deformation of the foams at various strain stages.
Adrien, Ahmadi, Awaja, Das, Dou, Gu, Huang, Huang, Kim, Kishore, Klaus, Labella, Li, Li, Li, Li, Maire, Orbulov, Pellegrino, Peroni, Song, Veseniak, Viot, Wang, Woldesenbet, Woldesenbet, Wouterson   +26 more
core   +1 more source

X-ray microtomography with monochromatic synchrotron radiation for evaluation of the penetration depth of nanosilver solution in tooth dentin

Эндодонтия Today, 2020
The results of measuring the depth of penetration of the ultrasonicated bactericidal solution of nanosilver Poviargrol into Dentinal Tubules of the tooth are presented.

doaj  

Quick X-ray microtomography using a laser-driven betatron source

, 2017
Laser-driven X-ray sources are an emerging alternative to conventional X-ray tubes and synchrotron sources. We present results on microtomographic X-ray imaging of a cancellous human bone sample using synchrotron-like betatron radiation.
Ding, H., Döpp, A., Gilljohann, M., Goetzfried, J., Hehn, L., Karsch, S., Pfeiffer, F., Schindler, S., Wenz, J.   +8 more
core   +1 more source

Dynamic reservoir-condition microtomography of reactive transport in complex carbonates: effect of initial pore structure and initial brine pH [PDF]

, 2017
We study the impact of brine acidity and initial pore structure on the dynamics of fluid/solid reaction at high Péclet numbers and low Damköhler numbers.
Bijeljic, B, Blunt, M, Menke, HP
core   +1 more source

Crystallisation in basaltic magmas revealed via in situ 4D synchrotron X-ray microtomography

Scientific Reports, 2018
Magma crystallisation is a fundamental process driving eruptions and controlling the style of volcanic activity. Crystal nucleation delay, heterogeneous and homogeneous nucleation and crystal growth are all time-dependent processes, however, there is a ...
M. Polacci, F. Arzilli, G. La Spina, N. Le Gall, B. Cai, M. Hartley, D. Di Genova, Nghia T. Vo, S. Nonni, R. Atwood, E. Llewellin, P. Lee, M. Burton   +12 more
semanticscholar   +1 more source