Additional measurements with helium, argon, propane, and sulfur hexafluoride demonstrated that, by using the capillary radius determined for nitrogen, the model could predict the flow rates of gases with widely varying properties. 展开 关键词: Practical, Experimental/ argon flowmeters helium ...
In addition, an increase in volume change and carbonation rate for small additions of fines despite exhibiting improvement in compressive strength (Binici, 2007; Vijayaraghavan and Wayal, 2013; Kumar et al., 2017). 4.5.1 Water absorption Open porosity and capillary absorption are necessary to ...
Moreover, the T-tube processing is more complicated than the use of commercial capillary. In this work, a near-infrared highly-sensitive QEPAS CH4 sensor system was developed based on a novel QTF-embedded, double-pass, off-beam quartz-enhanced photoacoustic spectroscopy (DP-OB-QEPAS) technique,...
(Figure 1b andFigure 3a) and the drying process for larger sizes was highly susceptible to the formation of large cracks in the samples due to capillary forces caused by water evaporation. This rendered the preparation of large-size samples unfeasible. The shrinkage of the composites decreased ...