Transitional Duty

Transitional Devices

Selective Catalytic Reduction for Heavy-duty and Light-duty Vehicles

Whereas previous emission limit values could be met by primary engine control measures, the limits for PM and NOx from heavy duty engines in 2008/09 (Euro V) and diesel passenger cars in 2014/15 (Euro 6) represent a challenge for the developers of diesel engines and vehicles. Due to the thermodynamics of the Diesel combustion process, it is difficult to optimise the combustion process for both ...

Government and Fertility in Transitional and Post-Transitional Societies

RECQ1's double duty

Why are cel ls so tense? C ells might be able to rapidly adjust their stiffness by contracting myosin motors, according to a new cytoskeleton model from Daisuke Mizuno, Christoph Schmidt (Georg-August-Universität, Göttingen, Germany), and colleagues. Cells adjust their rigidity when they interact with the extracellular matrix, for example, and when an external force acts on them. To mimic cytos...

It's our duty!