Duelling visions stall NASA

Unsteady CFD Simulation of the NASA Common Research Model in Low Speed Stall

In advance of cryogenic time-resolved PIV measurements in the European Transonic Windtunnel ETW unsteady CFD simulations of the NASA Common Research Model have been carried out. In the observed high Reynolds number and low Mach number flow regime a pressure induced boundary layer separation occurs on the main wing at high angles of attack. In steady RANS simulations the development of the separ...

Duelling functions of the V-ATPase.

The V-ATPase, the major cellular proton pump, is comprised of the peripheral sector V1 catalysing ATP hydrolysis and the membrane integral sector V0 translocating protons. Ten years ago, Andreas Mayer’s group made the surprising observation that proteolipids of the V0 transmembrane sector are implicated in membrane fusion, but deeper analysis proved to be difficult—mostly because V-ATPase disru...

Local Stall Propagation.PDF

Microprocessors commonly encounter data hazards that must be resolved by stalling the pipeline until all inputs become available. The stall is broadcast globally to previous stages so no tokens are lost. As propagation delays of cross-chip wires exceed 1 cycle, it is no longer possible to stop the processor “on a dime.” Local Stall Propagation is a systematic approach to solving the problem. In...

Tunnel visions

What advice would you give to someone who is considering a career in science? It is important not to shy away from addressing big questions. This will require actively seeking interdisciplinary knowledge, and developing collaborative skills. It is also important to integrate well in the scientific community, and participate in community efforts (such as reviewing manuscripts and grants). If you...

Allied Visions