QPM
Encyclopedia
QPM may refer to:
- Queen's Police MedalQueen's Police MedalThe Queen's Police Medal is awarded to police officers in the United Kingdom and Commonwealth for gallantry or distinguished service. Recipients may use the post-nominal letters "QPM", although the right to use these was only granted officially on 20 July 1969...
, a medal awarded to police officers in the United Kingdom and Commonwealth for gallantry or distinguished service - Quasi-phase-matchingQuasi-phase-matchingQuasi-phase-matching is a technique in nonlinear optics which allows a positive net flow of energy from the pump frequency to the signal and idler frequencies by creating a periodic structure in the nonlinear medium. Momentum is conserved, as is necessary for phase-matching, through an additional...
, a technique in nonlinear optics which allows a positive net flow of energy from the pump frequency to the signal and idler frequencies by creating a periodic structure in the nonlinear medium - Quality Protein MaizeQuality Protein MaizeQuality Protein Maize contains nearly twice as much usable protein as other maize grown in the tropics and yields 10% more grain than traditional varieties of maize. It was developed by Dr. Surinder Vasal and Dr. Evangelina Villegas at the International Maize and Wheat Improvement Center in the...
, contains nearly twice as much usable protein as other maize (or corn) grown in the tropics and yields 10% more grain than traditional varieties of maize