Oct 17, 2019 · From 2013 through 2018, annual global growth rates of revenue passenger kilometers (RPKs—one passenger travelling one kilometer is one RPK) ranged from 5.7 to 7.4 percent. Regionally, the highest growth occurred in the Asia-Pacific, which includes China and India, with rates reaching 11 percent in 2016 and 2017. In a low temperature system, such as nitromethane, the effect is quite different. The addition of hydrogen in small quantities causes a rapid decrease in chamber temperature, but the increase in performance is considerably less on a percentage basis.
How liquid water content (LWC) and temperature affect the growth of branched planar snow crystals is poorly understood. To address this issue, a vertical supercooled cloud tunnel was used to grow 167 individual snow crystals for 10 min under nearly constant conditions.