Sökning: "Yixian Chen"

Hittade 2 uppsatser innehållade orden Yixian Chen.

  1. 1. Forest fertilization does not cause any long-term effects on tree growth or vegetation composition

    Master-uppsats, SLU/Dept. of Ecology

    Författare :Yixian Chen; [2023]
    Nyckelord :density; ground vegetation; height; stem radial growth; legacy nitrogen effect; soil total N and C N ratio; tree;

    Sammanfattning : Forest fertilization is considered one of the most effective management options to improve forest productivity. In Fennoscandia, nitrogen (N) fertilization has been practiced for over 50 years and is normally added in the form of granules of NH4NO3 at least 15 years prior to the final harvest. LÄS MER

  3. 2. License plate recognition

    Kandidat-uppsats, Avdelningen för Industriell utveckling, IT och Samhällsbyggnad

    Författare :Li Songke; Chen Yixian; [2011]
    Nyckelord :;

    Sammanfattning : This paper presents a method for license plate recognition through analysis of vehicle images. Accurate location of license plate and extracting characters of plate are implemented. In the plate location module, the paper puts forward arithmetic of plate edge recognition by morphology algorithms. LÄS MER