نتایج جستجو برای: x ray radiography

تعداد نتایج: 674380  

Journal: :Epj Web of Conferences 2021

The present paper describes laboratory tests on steady granular flows down a smooth chute using X-ray radiography. By an original set-up with gate at its end, standing discontinuites in height, velocity and density, namely jumps, were produced during the flows. radiography was successful to get consistent measurements of free-surface density profiles along under different flow states: (nearly) ...

Journal: :International Journal of Engine Research 2017

2015
Benjamin Dallaudière Ahmed Larbi Mathieu Lefere Anne Perozziello Olivier Hauger Florence Pommerie Bénédicte Fraboulet Denis Jacob

BACKGROUND Ultrasound (US) is a good first-line alternative for the diagnosis of bone fractures in adults as well as children. Our study shows that, compared to X-ray, in a resource-constrained environment, on-site US has a high sensitivity (98%) and specificity (96%) in the diagnosis of bone fractures. PURPOSE To compare the accuracy of on-the-spot US with conventional radiography in the scr...

Journal: :Physics in medicine and biology 2000
F A Dilmanian Z Zhong B Ren X Y Wu L D Chapman I Orion W C Thomlinson

Diffraction enhanced imaging (DEI) is a new, synchrotron-based, x-ray radiography method that uses monochromatic, fan-shaped beams, with an analyser crystal positioned between the subject and the detector. The analyser allows the detection of only those x-rays transmitted by the subject that fall into the acceptance angle (central part of the rocking curve) of the monochromator/analyser system....

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