Further questions are hanging over the fatal crash of the BBMF’s Mark IX Spitfire in May, which resulted in the death of its pilot, Squadron Leader Mark Long. Although the RAF said at the time t ...

Tested under standard illumination conditions, the tandem cell achieved an efficiency of 30.22%, an open-circuit voltage of 1.954 V, a short-circuit current density of 18.92 mA/cm2, and a fill ...

USED 2012 BOMAG BW211PD-4 12t SMOOTH DRUM ROLLER WITH FULL A C CABIN AND 3280 HOURS. FULL SERVICE HISTORY, TIER 1 CIVIL SPEC, REAR.... Intro Light articulated tandem roller BW 138 AC-5 Leaders in ...

The project, involving six Fraunhofer institutes, worked to identify the most sustainable paths for the market launch of perovskite-silicon tandem solar cells. The researchers produced new ...