<html><head></head><body><div class="ydp14b24201yahoo-style-wrap" style="font-family:Helvetica Neue, Helvetica, Arial, sans-serif;font-size:16px;">Dear QE experts </div><div class="ydp14b24201yahoo-style-wrap" style="font-family:Helvetica Neue, Helvetica, Arial, sans-serif;font-size:16px;"><br></div><div class="ydp14b24201yahoo-style-wrap" style="font-family:Helvetica Neue, Helvetica, Arial, sans-serif;font-size:16px;">1. May I know the difference between PBE+vdW and Grimme-D3</div><div class="ydp14b24201yahoo-style-wrap" style="font-family:Helvetica Neue, Helvetica, Arial, sans-serif;font-size:16px;">2. Which one is more suitable to study the effect of vdW in case of Transition metal dichalcogenide bi/tri/quad layer and why ?</div><div class="ydp14b24201yahoo-style-wrap" style="font-family:Helvetica Neue, Helvetica, Arial, sans-serif;font-size:16px;"><br></div><div class="ydp14b24201yahoo-style-wrap" style="font-family:Helvetica Neue, Helvetica, Arial, sans-serif;font-size:16px;">Best Wishes</div><div class="ydp14b24201yahoo-style-wrap" style="font-family:Helvetica Neue, Helvetica, Arial, sans-serif;font-size:16px;"><br></div><div class="ydp14b24201yahoo-style-wrap" style="font-family:Helvetica Neue, Helvetica, Arial, sans-serif;font-size:16px;">Sohail </div><div class="ydp14b24201yahoo-style-wrap" style="font-family:Helvetica Neue, Helvetica, Arial, sans-serif;font-size:16px;">KKU, Abha, </div><div class="ydp14b24201yahoo-style-wrap" style="font-family:Helvetica Neue, Helvetica, Arial, sans-serif;font-size:16px;">Saudi Arabia</div><div class="ydp14b24201yahoo-style-wrap" style="font-family:Helvetica Neue, Helvetica, Arial, sans-serif;font-size:16px;"><br></div><div class="ydp14b24201yahoo-style-wrap" style="font-family:Helvetica Neue, Helvetica, Arial, sans-serif;font-size:16px;"><br></div></body></html>