<html><head><style type="text/css"><!-- DIV {margin:0px;} --></style></head><body><div style="font-family:times new roman, new york, times, serif;font-size:12pt"><DIV>Dear Wien2k users,</DIV>
<DIV> </DIV>
<DIV>Could you tell me how to find the exact density the boundary of electron cloud, </DIV>
<DIV>if I want use it to define a wall thickness of a SWCNT ? Thanks a lot in advance.</DIV>
<DIV>Best regards !</DIV>
<DIV> </DIV>
<DIV>Jun Cai </DIV></div><br>
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