June 19, 2007 Toyota has developed a new form of valve actuation for internal combustion engines which it claims improves fuel efficiency by 5 to 10 per cent, enhances throttle response, reduces CO2 ...

This is a preview. Log in through your library . Abstract In resent years, dynamic studies of valve mechanisms in the internal combustion engine have dealt with peculiar phenomena such as valve jump ...

Scientists have discovered a mechanism that controls inflammation similarly to a steam-engine valve: just when the inflammatory mechanism that protects cells against viruses reaches its peak of ...

Traditionally, the Ahmed glaucoma valve is used in more complicated cases after other surgical measures have been tried. Increasingly, however, the Ahmed glaucoma valve is being considered as a ...

(a) A sketch of the spin-valve effect in bulk kagome helimagnet. (b) MFM images of TmMn6Sn6 under magnetic field. (c) The asymmetric magnetoresistance for electric current along the helical axis of ...