Chartered Manager for CEng and IEng members. Chartered Manager is the most prestigious status that can be achieved in the managerial profession. Awarded by the Chartered Management Institute (CMI) [new window], it is recognised throughout the public and private sectors and across all management disciplines.
DPH is an abbreviation for the chemical Diphenhydramine (dye-fen-hye'-dra-meen). It is the active ingredient in many over the counter sleep aids including Unisom, Nytol, Tylenol PM (combined with acetaminophen) and in many generic store brand remedies.
Differential pulse code modulation or Delta pulse code modulation (DPCM) is a technique in which PCM values are encoded as the difference between the current and previous values. In audio formats, this type of encoding reduces the number of bits required per sample by about 25% compared with PCM.