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  2. Electric motor - Wikipedia

    en.wikipedia.org/wiki/Electric_motor

    An industrial electric motor . An electric motor is a machine that converts electrical energy into mechanical energy.Most electric motors operate through the interaction between the motor's magnetic field and electric current in a wire winding to generate force in the form of torque applied on the motor's shaft.

  3. NEC - Wikipedia

    en.wikipedia.org/wiki/NEC

    [50] In 2003 NEC had a 20.8% market share in the personal computer market in Japan, slightly ahead of Fujitsu. [51] In 2004, NEC abandoned not only the OLED business, but the display business as a whole, by selling off their plasma display business and exiting from the joint-venture with Samsung SDI. Samsung bought all of the shares and related ...

  4. QR code - Wikipedia

    en.wikipedia.org/wiki/QR_Code

    The QR code system was invented in 1994, at the Denso Wave automotive products company, in Japan. [5] [6] [7] The initial alternating-square design presented by the team of researchers, headed by Masahiro Hara, was influenced by the black counters and the white counters played on a Go board; [8] the pattern of position detection was found and determined by applying the least-used ratio (1:1:3 ...

  5. Function generator - Wikipedia

    en.wikipedia.org/wiki/Function_generator

    A completely different approach to function generation is to use software instructions to generate a waveform, with provision for output. For example, a general-purpose digital computer can be used to generate the waveform; if frequency range and amplitude are acceptable, the sound card fitted to most computers can be used to output the generated wave.

  6. Sustainability at American colleges and universities - Wikipedia

    en.wikipedia.org/wiki/Sustainability_at_American...

    Powering the university's medical campus, the Sterling Plant was originally built as a coal-burning steam plant but converted to “accommodate cleaner-burning fuels over the last 88 years.” [14] Since then the new co-generator unit of the plant has “operated at about 79% thermal efficiency and the boiler operates at around 90% thermal ...

  7. Pulse generator - Wikipedia

    en.wikipedia.org/wiki/Pulse_generator

    For example, the pulse repetition rate and duration may be digitally controlled but the pulse amplitude and rise and fall times may be determined by analog circuitry in the output stage of the pulse generator. With correct adjustment, pulse generators can also produce a 50% duty cycle square wave. Pulse generators are generally single-channel ...