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  2. Quality control system for paper, board and tissue machines

    en.wikipedia.org/wiki/Quality_control_system_for...

    A quality control system (QCS) refers to a system used to measure and control the quality of moving sheet processes on-line as in the paper produced by a paper machine. . Generally, a control system is concerned with measurement and control of one or multiple properties in time in a single dimen

  3. Quality control - Wikipedia

    en.wikipedia.org/wiki/Quality_control

    Quality inspector in a Volkseigener Betrieb sewing machine parts factory in Dresden, East Germany, 1977. Quality control (QC) is a process by which entities review the quality of all factors involved in production.

  4. QSC Audio Products - Wikipedia

    en.wikipedia.org/wiki/QSC_Audio_Products

    QSC is an American manufacturer of audio, video and control products such as amplifiers, loudspeakers, cameras, video endpoints, and digital signal processors including the Q-SYS networked audio, video and control platform.

  5. Quantum error correction - Wikipedia

    en.wikipedia.org/wiki/Quantum_error_correction

    In general, a quantum code for a quantum channel is a subspace , where is the state Hilbert space, such that there exists another quantum channel with () = =, where is the orthogonal projection onto .

  6. Quality circle - Wikipedia

    en.wikipedia.org/wiki/Quality_circle

    [14] [15] Active QCs had lower rate of problem-solving failure, higher attendance rate at QC meetings, and higher net savings of QC projects than inactive QCs. [16] QC membership tends to decrease over the three-year period. Larger QCs have a better chance of survival than smaller QCs. A significant drop in QC membership is a precursor of QC ...

  7. Distributed control system - Wikipedia

    en.wikipedia.org/wiki/Distributed_control_system

    Level 3 is the production control level, which does not directly control the process, but is concerned with monitoring production and monitoring targets; Level 4 is the production scheduling level. Levels 1 and 2 are the functional levels of a traditional DCS, in which all equipment are part of an integrated system from a single manufacturer.

  8. Quantum-confined Stark effect - Wikipedia

    en.wikipedia.org/wiki/Quantum-confined_Stark_effect

    The quantum-confined Stark effect (QCSE) describes the effect of an external electric field upon the light absorption spectrum or emission spectrum of a quantum well (QW). In the absence of an external electric field, electrons and holes within the quantum well may only occupy states within a discrete set of energy subbands.

  9. The Highway Q.C.'s - Wikipedia

    en.wikipedia.org/wiki/The_Highway_Q.C.'s

    The Highway Q.C.'s is an American gospel group that has been active for over 70 years. Its members sing in the tradition of jubilee quartets, though they have also added instrumental accompaniment.