Definitions for "Ppb"
part period balancing. A lot size technique that uses look ahead and look back functions to consider additional periods in modifying an initial calculation based on least total cost.
Parts Per Billions
parts per billion (equivalent to µg/L or µg/kg)
Keywords:  horst, romani
Horst Romani
Participatory plant breeding. Plant breeding (crossing and subsequent selection in the heterogeneous progeny) involving farmers.
Keywords:  pci, bus, serial, bandwidth, doubles
PCI to PCI Bus. Doubles bus loads but not bandwidth (because it runs in serial rather than parallel).
Keywords:  programme, board, project
Project Programme Board
Program and Planning ("Programming") Budgeting
A ratio used to describe the proportion of one substance to another. In terms of time, l ppb is equal to one second in 32 years.