I used two file folders and hooked them together at the top with a giant paper clip. Attach two of the periodic tables in with that paper clip as well. Then lay the other two periodic tables down on the table in the folder. If you want it to be more permanent you can glue them on...
Figure 2. (a) simulated spectral response of the active layer’s optical absorption in structures without periodic back grating (solid blue line) and with optimized periodic back grating (red dash-dotted line); (b) simulated electric field distributions at the operating wavelengths as labelled in...
Table 1. Information on the observed variables and associated instruments on the platform. Figure 2 shows the plan-view architecture of the fastened platform. The platform is supported by six prestressed high-intensity concrete (PHC) pipe piles with a length of 46 m and two auxiliary piles wit...