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CT scanner with cover removed to show internal components. Legend: T: X-ray tube D: X-ray detectors X: X-ray beam R: Gantry rotation Left image is a sinogram which is a graphic representation of the raw data obtained from a CT scan. At right is an image sample derived from the raw data. [201
In the science fiction novel The Long Result by John Brunner (1965), a retinal scanner is used to access a Remote Control Centre at a spaceport. In the movie Batman (1966), Batman describes to Robin how the tiny vessels in the retina are unique to the individual, and by utilizing the portable retina scan device in the Batmobile, they confirm ...
Laser scanning is the controlled deflection of laser beams, visible or invisible. [1] Scanned laser beams are used in some 3-D printers, in rapid prototyping, in machines for material processing, in laser engraving machines, in ophthalmological laser systems for the treatment of presbyopia, in confocal microscopy, in laser printers, in laser shows, in Laser TV, and in barcode scanners.
RJ Reynolds declined on Monday to comment on the court's decision to deny its appeal. In a separate case involving the FDA, the Supreme Court on Dec. 2 is set to hear arguments over the agency's ...
AOL fonctionne mieux avec les dernières versions des navigateurs. Vous utilisez un navigateur obsolète ou non pris en charge, et certaines fonctionnalités de AOL risquent de ne pas fonctionner correctement. Mettez à jour la version de votre navigateur dès maintenant. Plus d’infos
A full-body scanner is a device that detects objects on or inside a person's body for security screening purposes, without physically removing clothes or making physical contact. Unlike metal detectors , full-body scanners can detect non-metal objects, which became an increasing concern after various airliner bombing attempts in the 2000s.
President Joe Biden's decision to commute the sentences of 37 death row inmates ignited a fierce debate about the morality of executions.
Dust and scratches on the film can be a big problem for scanning. Because of their reduced size (compared to prints), the scanners are capable of resolutions much higher than a regular flatbed scanner; typically at least 2000 samples per inch (spi), up to 4000 spi or more. At these resolutions dust and scratches take on gigantic proportions.