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<DIV><FONT face=Arial>Dear users of&nbsp; Wien2k,</FONT></DIV>
<DIV><FONT face=Arial></FONT>&nbsp;</DIV><FONT face=Arial>
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<DIV><SPAN id=result_box lang=en c="4" a="undefined" td="null" 
closure_uid_xra7m5="185"><SPAN class=hps td="null" closure_uid_xra7m5="418">I 
have a question about BoltzTraP code. <BR>In this program to simplify the 
Boltzmann equation the relaxation time approximation is adopted and relaxation 
time is kept constant. But what is the value of this 
parameter?</SPAN></SPAN></DIV>
<DIV><SPAN lang=en c="4" a="undefined" td="null" closure_uid_xra7m5="185"><SPAN 
class=hps td="null" closure_uid_xra7m5="418"></SPAN></SPAN>&nbsp;</DIV><SPAN 
lang=en c="4" a="undefined" td="null" closure_uid_xra7m5="185"><SPAN class=hps 
td="null" closure_uid_xra7m5="418"></SPAN></SPAN></DIV>
<DIV><SPAN lang=en c="4" a="undefined" td="null" closure_uid_xra7m5="185"><SPAN 
class=hps td="null" closure_uid_xra7m5="418"></SPAN></SPAN>Margo</FONT><FONT 
face=Arial> </FONT></DIV></DIV></BODY></HTML>