Search Results

3 results

  1. CORESTA Congress, Paris, 2006, PT 10

    Classification of the contaminant in the cigarette wrap paper using PLA-DA algorithm with near infrared spectra

    DU Wen; REN Jianxin; LI Shaoye; ZHANG Wenli
    Changsha Technology Center of CNTC, Changsha, Hunan, China.
    To classify the contaminant in the cigarette wrap paper, PLS-DA model was established with the near infrared reflection spectra. Standard samples were prepared by painting possible oil contaminant (lubricant, vacuum oil, lecithin, etc.) on the clean...
  2. CORESTA Meeting, Smoke Science/Product Technology, Stratford-upon-Avon, 2005, SSPTPOST 02

    Wavelet transform: improve the transferabilities of NIR calibrations

    DU Wen; REN Jianxin; ZHANG Wenli; SHAO Xueguang
    Changsha Technology Center of CNTC, Changsha, Hunan, China.
    Calibration transfer is a difficult task in the application of NIR models. This study introduced wavelet transform algorithm to improve the transferability of NIR calibrations among 5 FT-NIR instruments. The NIR spectra of a group of 400 tobacco...