2Design and optimization of surface gas drainage and extraction well for underground high gassy low permeability thin seam4-7
3Design and application of central control system to mine main ventilator with adjustable moving vane8-11
5Reconstruction of locomotive shunting system base on PLC and frequency converted speed controller14-15
6Practices on reconstruction of coarse cleaned coal recovery technique in Liangbei Coal Preparation Plant16-18
12Design on bolt support of mining gateway in seam with close distance to other seams in Xinliu Mine30-33
13Research on new comprehensive control technology of pre-stressed bolt support for large span open-off cut of fully mechanized coal mining face34-36
14Study on numerical simulation for support optimized design of coal and rock gateway in deep mining face37-39
16Study on Technology of Bolt-mest-cable-belt Coupling Support in the Inclined Coal Seam Gateway at the Tenth Coal Mine of Hebi42-45
17Strata bump prevention and control technology of coal mining face with high strata bump danger in potential under complicated geological condition46-48
18Discovery on three dimensional gas drainage technology for low permeability and soft single seam in Lu'an Mining Area49-50
