Recent content by slyth

Hello. Currently I am doing a test on a vacuum heat treatment machine and came up with an unsolved problem for the past 2 months. I am out of clue and I’m here to hear everyone's opinion. Below are the steps what I did. 1) Vacuum chamber pumped down to 4.5E-04 Pa (Rotary + Mechanical booster...

Hello.I'm doing a research on ultraviolet (mainly on UVB band). UVB band with the wavelength 280nm~315nm has the energy of 4.43eV~3.94eV which can be calculated from Plank-Einstein equation. In visible spectrum,light intensity can be calculated from E_{r}=\frac{E_{0}}{4\pi r^{2}} With the...