This work demonstrates a new 2-stage valving concept for microfluidic systems based on polydimethylsiloxane (PDMS) that uses the reversible gelation of a thermally responsive polymer solution in a ...

A look into the exhaust gas recirculation, or EGR, valve - an important piece of the automotive emissions system.

Air can enter water pipelines in several ways, often from dissolved air coming out of solution due to pressure fluctuations, ...