deletions | additions       diff --git a/section_Conclusion_In_this_project__.tex b/section_Conclusion_In_this_project__.tex  index 405c461..df564e3 100644  --- a/section_Conclusion_In_this_project__.tex  +++ b/section_Conclusion_In_this_project__.tex 
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\section{Conclusion}  In this project, the WKB tunneling model is combined with classical single particle model to describe the CDW transport. The calculated DC and AC conductivity agreefairly well  with the experimental results in the low field and low frequency domain. domain \cite{Gr_ner_1981}.  The mixed signal conductivity is also calculated with the noticeable resonant ridge above threshold voltage  and photon-assisted tunneling in the low field domain. The reason reasons  for the disagreement of thefrequencies of  harmonics and the ratio of amplitude is amplitudes are  largely because of the incompleteness and simplification of the discussion. discussion and the inaccessibility of some parameters.