<P><BR>hi,</P>
<P>everyone,I am simulating carbon nanotube in water,i gain nanotube topol file by x2top,i use force field parameters as reference,but at the minimization stage,my nanotube structure was deformed,what is the reason? who can tell me?</P>
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<P>thank you in advance!</P>
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<P> zhoujh</P>
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