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  1. No Access

    Article

    Effects of annealing temperature on the H2-sensing properties of Pd-decorated WO3 nanorods

    The temperature of the post-annealing treatment carried out after noble metal deposition onto semiconducting metal oxides (SMOs) must be carefully optimized to maximize the sensing performance of the metal-dec...

    Sangmin Lee, Woo Seok Lee, Jae Kyung Lee, Soong Keun Hyun, Chongmu Lee… in Applied Physics A (2018)

  2. No Access

    Article

    Acetone sensing of multi-networked WO3-NiO core-shell nanorod sensors

    WO3-NiO core-shell nanorods were synthesized by thermal evaporation of a mixture of WO3 and graphite powders and immersion of the synthesized WO3 nanorods in an 20 mM of nickel(II) acetate tetrahydrate (Ni(OCOCH3

    Seungbok Choi, Jae Kyung Lee, Woo Seok Lee… in Journal of the Korean Physical Society (2017)

  3. No Access

    Article

    Hydrogen gas detection of Nb2O5 nanoparticle-decorated CuO nanorod sensors

    Pristine and Nb2O5 nanoparticles-decorated CuO nanorods were prepared successfully by a two step process: the thermal evaporation of a Cu foil and the spin coating of NbCl5 solution on CuO nanorods followed by th...

    Hyejoon Kheel, Gun-Joo Sun, Jae Kyung Lee… in Metals and Materials International (2017)

  4. No Access

    Article

    Micro-precision surface finishing using magneto-rheological fluid

    In order to improve the surface quality of machining workpiece, this paper studied a micro-precision surface finishing method by applying magneto-rheological fluid to the machined surface. A pin-on-disc testin...

    WanLi Song, SeungBok Choi, DeukWon Lee, ChulHee Lee in Science China Technological Sciences (2012)

  5. No Access

    Chapter and Conference Paper

    Improvement of Probabilistic Public Key Cryptosystems Using Discrete Logarithm

    We investigate two different probabilistic public key cryptosystems, one proposed by Okamoto and Uchiyama and the other by Paillier. Both of them are based on the discrete logarithmic function and the messages...

    Choi Dug-Hwan, Seungbok Choi… in Information Security and Cryptology — ICISC 2001 (2002)

  6. No Access

    Chapter and Conference Paper

    Efficient anonymous fingerprinting of electronic information with improved automation with improved automatic identification of redistributors

    The proposed scheme by Domingo in Electronic Letters presented the first anonymous fingerprinting scheme in which help of a registration center is not required in order to identify redistributors. However, reg...

    Chanjoo Chung, Seungbok Choi, Youngchul Choi… in Information Security and Cryptology — ICIS… (2001)