?url_ver=Z39.88-2004&rft_id=10.1016%2Fj.psep.2023.02.080&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.aulast=Hasnen&rft.au=Hasnen%2C+Saidatul+Hasniza&rft.aufirst=Saidatul+Hasniza&rft.issn=09575820&rft.title=Process+Safety+and+Environmental+Protection&rft.date=2023&rft.volume=172&rft.pages=787+-+801&rft.atitle=Semi-supervised+adaptive+PLS+soft-sensor+with+PCA-based+drift+correction+method+for+online+valuation+of+NOx+emission+in+industrial+water-tube+boiler&rft.genre=article