A relative of a missing passenger cries at a vigil in Beijing on April 8, 2014. Australian Defense Force divers scan the water for debris in the southern Indian Ocean on April 7, 2014. A towed pinger locator is readied to be deployed off the deck of the Australian vessel Ocean Shield on April 7, 2014.
From what I've learned in a similar search, I believe the DPO is the abbreviation for Discontinued Post Office. The AE definitely designates Army Europe and the 09498 part of your query would be the APO zip code for a former military installation.
Dynamic mechanical analysis. Dynamic mechanical analysis (abbreviated DMA, also known as dynamic mechanical spectroscopy) is a technique used to study and characterize materials. It is most useful for studying the viscoelastic behavior of polymers.