Numerical Simulation Study on Influence of a Structural Parameter of D Bolt, an Energy-Absorbing Rock Bolt, on its Stress Distribution by Kwang Nam Pyon, Kyong Su Son, Un Chol Han

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Thermodynamic Behavior of Pyrite and Arsenopyrite in Preoxidation for Chlorination Leaching of Refractory Gold Concentrate by Chang Sok Kim, Un Chol Han, Hyok Sin, Su Rim Hwang, Jong Min Wang

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Stability Analysis of Pillar System during Room and Pillar Retreat Mining with Three Coal Seams by Un Chol Han, Kum Il Pak, Chung Song Choe, Kun Ui Hong, Chung Il Kim

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Study on the Switching Model Predictive Control Algorithm in Batch Polymerization Process by Jong Nam Kim, Chun Bae Ma, Hyok Jo, Un Chol Han, Hyon-Tae Pak, Son Il Hong, Ri Myong Kim

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