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The Pennsylvania Liquor Control Board (PLCB) is the independent state government agency in Pennsylvania that manages the beverage alcohol industry in the state under the regulations of the Pennsylvania Liquor Code. The board is responsible for licensing the possession, sale, storage, transportation, importation, and manufacture of wine, spirits ...
PLC. DCS. SCADA. v. t. e. A programmable logic controller ( PLC) or programmable controller is an industrial computer that has been ruggedized and adapted for the control of manufacturing processes, such as assembly lines, machines, robotic devices, or any activity that requires high reliability, ease of programming, and process fault diagnosis.
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Curve of sales as a function of the time of the product on the market. After a plateau in sales at product maturity, a steep decline can follow. Product life-cycle management ( PLM) is the succession of strategies by business management as a product goes through its life-cycle. The conditions in which a product is sold (advertising, saturation ...
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Phase-locked loop. A phase-locked loop or phase lock loop ( PLL) is a control system that generates an output signal whose phase is fixed relative to the phase of an input signal. Keeping the input and output phase in lockstep also implies keeping the input and output frequencies the same, thus a phase-locked loop can also track an input frequency.
Costas loop. A Costas loop is a phase-locked loop (PLL) based circuit which is used for carrier frequency recovery from suppressed-carrier modulation signals (e.g. double- sideband suppressed carrier signals) and phase modulation signals (e.g. BPSK, QPSK ). It was invented by John P. Costas at General Electric in the 1950s.