01174nam a2200325 i 4500001001300000005001500013007000300028008004100031040002400072041001300096049001800109052001800127056001100145082001400156100004800170245014100218264005200359300005800411336002600469337002800495338002700523500002700550502011600577504002800693546003400721900003000755900003000785900001400815900001900829KDM20202662720211103151431ta200626s2020    gnka     m VG 000   eng    a011001c011001erda0 aengbkor0 lWM988893fWDP02a621.8b20-157  a5502601a621.82231 a정영철,g鄭映澈,d1987-0KAC20187881310aStudy of single/tandem pulse GMAW process and hardening methods by using nano particle for high-hardness-armor steel /dYoungcheol Jeong 1aChangwon :bChangwon National University,c2020  aix, 128 leaves :billustrations (some color) ;c26 cm  atextbtxt2rdacontent  aunmediatedbn2rdamedia  avolumebnc2rdacarrier  aAdviser: Young Tae Cho1 aThesis(Ph.D.) --bGraduate School of Changwon National University,cDepartment of Mechanical Engineering,d2020  aIncludes bibliographies  aIn English; summary in Korean10aJeong, Youngcheol,d1987-10aJeong, Yeongcheol,d1987-10a조영태10aCho, Young Tae