Full wave mode theory combined with electron profiles given by ionospheric theory yields results that support the reports of X-ray star effects on VLF radio signals.doi:10.1016/0021-9169(79)90032-1J. SvennessonS. WesterlundElsevier B.V.Journal of Atmospheric & Terrestrial Physics...
A deep-learning pipeline for the diagnosis and discrimination of viral, non-viral and COVID-19 pneumonia from chest X-ray images. Nat Biomed Eng. 2021;5:509–21. Article CAS Google Scholar Wu JT, Wong KCL, Gur Y, Ansari N, Karargyris A, Sharma A, et al. Comparison of chest ...
electronic or chemical. Three film types are shown in this figure. Types K and F represent fast and medium speed films, respectively. Type M represents a slow, high-contrast film. X-ray film can also be purchased with high contrast vs. relative exposure characteristics such as those shown in...
Simulation parameters. The simulated X-ray grating interferometer was based on the wave-optical numer- ical framework of Malecki, A et al.26. The X-ray source was considered to emit monochromatic photons at the ceonmerpgayroafbElephw =ith 28t hkeeVexipnecroimheernetnatl plane ...
made a post on the platformsaying"Pretty depressing day at work today with lots of staff updating their resumes as we grapple with NASA's decision to shut down Chandra, the world's only ever high resolution X-ray space telescope, still returning fabulous science discoveries. Still hoping this...
followed by an X-ray detector. The sample is put into a water container to reduce the so-called phase-wrapping. In the schematic on the right, refraction in the sample causes a change of the direction of the wave frontα, which is proportional to the difference in optical pathΔΦ/(2π...
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Strange X-ray flash from beyond the Milky Way perplexes scientists 'It's extremely worrisome.' NASA's James Webb Space Telescope faces potential 20% budget cut just 4 years after launch How do black holes 'leak' energy? Scientists have a new spin on the answer 'Jupiter Ascending' came out...
An array of compound refractive X-ray lenses (CRL) with 20 × 20 lenslets, a focal distance of 20cm and a visibility of 0.93 is presented. It can be used as a Shack-Hartmann sensor for hard X-rays (SHARX) for wavefront sensing and permits for true single-shot multi-contrast imaging...
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