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  1. No Access

    Chapter and Conference Paper

    A Quick Computational Method for Improving Aerodynamic Shape of UAV Wing

    To obtain an optimal aerodynamic 3D shape of small-sized UAV wing at small flight speed and high lift coefficient, the optimization problem is set to minimize drag coefficient with fixed plane form and constant l...

    D. Tran-Duy, C. Nguyen-Duc, K. Mai… in Proceedings of the International Conferenc… (2018)

  2. No Access

    Article

    Effect of Yb3+ concentration on Er3+ luminescence properties of sol-gelderived silica-alumina xerogels

    Er3+ / Yb3+ co-doped silica-alumina monolithic xerogels were prepared with the same concentration on 2 000 Er/Si ppm and 6 000 Al/Si ppm. The Yb/Si content was varied from 0 to 4 000 ppm Densification of the samp...

    K. Tran Ngoc, H. Pham Thanh, C. Nguyen Duc, C. Armellini… in Optoelectronics Letters (2006)