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A worksheet, in the word's original meaning, is a sheet of paper on which one performs work. They come in many forms, most commonly associated with children's school work assignments, tax forms, and accounting or other business environments. Software is increasingly taking over the paper-based worksheet.
Optical mark recognition (OMR) is the scanning of paper to detect the presence or absence of a mark in a predetermined position. [ 5] Optical mark recognition has evolved from several other technologies. In the early 19th century and 20th century patents were given for machines that would aid the blind. [ 3]
Tracing paper is paper made to have low opacity, allowing light to pass through. Its origins date back to at least the 1300s where it was used by artists of the Italian Renaissance. [ 1] In the 1880s, tracing paper was produced en masse, used by architects, design engineers, and artists. [ 2] Tracing paper was key in creating drawings that ...
D014145. The Trail Making Test is a neuropsychological test of visual attention and task switching. It has two parts, in which the subject is instructed to connect a set of 25 dots as quickly as possible while maintaining accuracy. [ 1] The test can provide information about visual search speed, scanning, speed of processing, mental flexibility ...
Yellow dots on white paper, produced by color laser printer (enlarged, dot diameter about 0.1 mm) Printer tracking dots, also known as printer steganography, DocuColor tracking dots, yellow dots, secret dots, or a machine identification code (MIC), is a digital watermark which many color laser printers and copiers produce on every printed page that identifies the specific device that was used ...
Division 41 — Material Processing and Handling Equipment. Division 42 — Process Heating, Cooling, and Drying Equipment. Division 43 — Process Gas and Liquid Handling, Purification and Storage Equipment. Division 44 — Pollution Control Equipment. Division 45 — Industry-Specific Manufacturing Equipment.
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