Sound amplification by stimulated emission of radiation of a coherent amplification of THz sound. The THz stimulated phonon induced transitions between the electron superlattice states lead to this coherent amplification while processing a population inversion. An essential step towards coherent generation ("sasing") of THz sound and other active hypersound devices has been provided by this achievement of THz sound amplification. Generally, in a device where the threshold for "sasing" is achieved, the technique described by this proposed scheme could be used to measure the coherence time of the emitted hypersound. Sound amplification by stimulated emission of radiation Sound amplification by stimulated emission of radiation (SASER) refers to
I Changed a Lot of HipHopDX said, ""I Changed A Lot" lacks a “We Taking Over”-style smash single to show for the incredible hit-making power of the performers present. Something just feels off in Khaled's traditional manner of creating ubiquitous pop cultural touchstones. This album is generally solid, but in lacking the groundbreaking moment we’ve come to expect from the artist/producer/chicken wing restaurateur known for being “the best,” it falls short." The album debuted at number 12 on the "Billboard" 200, with 25,000 equivalent album units in the United States, with 19,000 copies sold in its first week. I Changed a Lot I Changed