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  2. Optimum HDTV viewing distance - Wikipedia

    en.wikipedia.org/wiki/Optimum_HDTV_viewing_distance

    Find the optimal distance for a given screen. Example: for a 4K UHD screen 140 cm high (112 inches diagonal), the optimal distance is 140 × 1.6 = 224 cm. Find the right screen size. Example: for a 1080 HDTV used at a distance of 250 cm, you need to find a screen whose height is close to ⁠ 250 / 3.2 ⁠ = 78 cm (63 inches diagonally).

  3. Comparison of CRT, LCD, plasma, and OLED displays - Wikipedia

    en.wikipedia.org/wiki/Comparison_of_CRT,_LCD...

    60 fps typically, some gaming monitors can do up to 540 fps; internally, display refreshed at up to 540 fps [18] [19] 60 fps typically, some can do 120 fps; internally, display refreshed at e.g. 480 or 600 fps [20] 60 fps typically. Up to 480 fps. [21] Flicker: Perceptible on lower refresh rates (60 fps and below) [22]

  4. ISO/IEC 11801 - Wikipedia

    en.wikipedia.org/wiki/ISO/IEC_11801

    International standard ISO/IEC 11801 Information technology — Generic cabling for customer premises specifies general-purpose telecommunication cabling systems (structured cabling) that are suitable for a wide range of applications (analog and ISDN telephony, various data communication standards, building control systems, factory automation).

  5. Distributed temperature sensing - Wikipedia

    en.wikipedia.org/wiki/Distributed_temperature...

    Temperatures are recorded along the optical sensor cable, thus not at points, but as a continuous profile. A high accuracy of temperature determination is achieved over great distances. Typically the DTS systems can locate the temperature to a spatial resolution of 1 m with accuracy to within ±1 °C at a resolution of 0.01 °C.

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  7. Comparison of display technology - Wikipedia

    en.wikipedia.org/wiki/Comparison_of_display...

    TV: No Shadow mask CRT: Spherical curve or flat 42 [1] 107 TV, computer monitor: Yes Aperture grille CRT: Cylindrical curve or flat 43 [2] 109 TV, computer monitor: Yes Monochrome CRT: Spherical curve or flat 30 [3] 76 TV, computer monitor, radar display, oscilloscope: Yes Direct view Charactron CRT: Spherical curve 24 61 Computer monitor ...

  8. Trace heating - Wikipedia

    en.wikipedia.org/wiki/Trace_heating

    Mineral insulated cables ran at high current densities to produce heat, and control equipment was adapted from other applications. [3] Mineral-insulated resistance heating cable was introduced in the 1950s, and parallel-type heating cables that could be cut to length in the field became available.

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