Reflectance values express the percentage of light that is reflected back from a surface, the difference having been absorbed or transmitted by the surface. Reflectances of room surfaces are used in determining coefficient of utilization values for luminaires.
The last three lines show you how to define your own awk function. The format is simple -- type function, then the function name, and then the parameters separated by commas, inside parentheses. After this, a { } code block contains the code that you'd like this function to execute.
KNK (Hangul: í¬ëí°; RR: Keunakeun, lit. great or to be great) is a five-member South Korean boy band under YNB Entertainment, the company's first male idol group. KNK is an initialism which stands for K-pop kNocK (Hangul: ì¼ì´í ë¸í¬). It means to knock on the door of K-pop with their music.. They held their debut showcase on February 29, 2016 and officially released their debut single album entitled Knock on March 3, 2016.