The US Air Force (USAF) is wrapping up analysis meant to determine the service’s need from a future tanker aircraft. That evaluation includes factors such as runway requirements, fuel transfer ...

APF-80, enables the crystalline sponge method to capture and analyze nucleophilic compounds. Alkaloids, a diverse group of biologically active compounds, usually damage MOF crystals and resist study.

"Even simple structural analysis shows that the ship was not designed for the compressive pack ice conditions that eventually sank it," Tuhkuri said. "The danger of moving ice and compressive loads — ...