News & Views Published: February 2009 Iron-based superconductors Timing is crucial Warren E. Pickett Nature Physics 5, 87–88 (2009) Cite this article ...

You have likely heard of variable valve timing by one of the names manufacturers have for the system, such as VVT-i or VTEC.

PV diagram can reflect the real-time thermodynamic state of reciprocating compressor and show its ability to do work, which is an effective means to study the in-service performance of reciprocating ...