The possibility of reliable, reasonably accurate and relatively inexpensive estimates of sensible heat and latent energy fluxes was investigated using a commercial combination thin-film polymer capacitive relative humidity and adjacent temperature sensor instrument. Long-term and unattended water vapour pressure profile difference measurements using low-power combination instruments were compar...

We present new experimental data of the low-temperature metastable region of liquid water derived from high-density synthetic fluid inclusions (996-916 kg m-3) in quartz. Microthermometric measurements include: (i) prograde (upon heating) and retrograde (upon cooling) liquid-vapour homogenisation. We used single ultrashort laser pulses to stimulate vapour bubble nucleation in initially monophas...

This paper is presented to give an overall view of pressure sensors in the previous two decades. The evolution of sensor technologies, different MEMS pressure sensors, their merits and demerits are discussed. Keywords— Fabry Perot Interferometer (F-P), Pressure Sensors, Electromagnetic Interference (EMI), Low pressure chemical vapour deposition (LPCVD).

THiS REV,EW studies the humidi ty output of anaesthet ic sys tems in common use and the steps taken to improve them. The amount of water vapour which an a tmosphere can hold varies with temperature . The warmer the ambient gas mixture, the more water vapour it can contain. There is a max imum amount of water vapour which the a tmosphere can maintain at each tempera ture when it becomes saturate...

Evaporation is ubiquitous in nature. This process influences the climate, the formation of clouds, transpiration in plants, the survival of arctic organisms, the efficiency of car engines, the structure of dried materials and many other phenomena. Recent experiments discovered two novel mechanisms accompanying evaporation: temperature discontinuity at the liquid–vapour interface during evaporat...

The conversion of a spirometer tracing into a volume of gas corrected to body temperature and pressure saturated with water vapour (B.T.P.S.volume) involves: (a) a factor to convert centimetres of tracing height to millilitres of gas at the existing (or 'ambient') temperature and pressure saturated with water vapour (A.T.P.S.-volume), this factor being 300 for the Godart apparatus in use in thi...