Heat transmission across an enclosed space is determined by the type of filling gas, temperatures and long-wave emissivities all surfaces that define space, heat flow direction. The ASHRAE Handbook Fundamentals provides thermal resistances (R-values) airspaces with only five effective emittance values (E) for vertical, horizontal, 45° airspaces. R-values do not include case 30° sloped In additi...

The oxygen flow rate delivered by liquid oxygen canisters may be less than intended, owing to inaccuracies of the set flow rates and/or as a result of the outflow resistance caused by the humidifier, oxygen tubing, delivery or conserving device. The aim of this study was to investigate the accuracy of oxygen delivery by liquid oxygen canisters at different flow rates and levels of outflow resis...

The time courses of vascular resistance and venous blood oxygen (O2) saturation following a brief tetanus of isolated dog calf muscle were studied during free-flow (constant-pressure), high constant-flow (>30 ml/100 g min-), and low constant-flow (<24 ml/100 g mirr) perfusion. A monophasic decrease in resistance followed a 1-second tetanus during either free-flow or high constant-flow perfusion...