Most cancer patients experience nausea and vomiting after surgery. Today, many methods of treatment have been developed and used for the control of such symptoms. The most important are drug therapy, relaxation, oxygen therapy and gas therapy. In addition, dexamethasone, massage therapy and using a Venturi mask have also proven effective. Due to the nature of gas consumption which leads to naus...

We present an optofluidic chip with integrated polymer interferometers for measuring both the microfluidic air pressure and flow rate. The chip contains a microfluidic circuit and optical cavities on a polymer which was defined by soft lithography. The pressure can be read out by imaging the interference patterns of the cavities. The air flow rate was then calculated from the differential press...

This paper identi es a new mechanism that can a ect the discharge coe cient of critical nozzle ows. Speci cally, vibrational relaxation e ects are demonstrated to signi cantly inuence the discharge coe cient of selected gases in critical venturi ows. This phenomenon explains why certain gases { like carbon dioxide { exhibit calibration characteristics that di er signi cantly from other gases (e...