Interval operation
5.The influence of specific charge, hole arrangement, charge structure, stem length, millisecond interval and ignition mode on the yield of the blasted boulder is analyzed Some measures to lower boulder yield in deep hole blasting of underground mine are presented through the optimization of blasting operation parameters as follows: lowering deep hole blasting effect of geology structure, rationally determining specific charge, using technique of wide-space small burden blasting, technique of manifold charge structure and technique of millisecond compression blasting, strengthening the management of boring construction and blasting construction.
6.In order to develop the biohydrogenproduction technology, the engineering technique parameters were researched in this thesis. The optimal operation condition and some controlling parameters can be determined as follows:T36± 1 °C, pH 5.2~5.4,speed of agitator 100~120r/min,initial concentration of cornstalk 10g/l,interval of feeding 8 ~ 9h.
7.In order to confirm the organization of train operation in planning regional intercity express railway, relative problems are studied, including velocity target value selection, the establishment of reasonable interval, and the concrete matters of passenger train plan, such as its influence factors and principles, operational organization modes, the choices of passenger train, the principles of the marshalling quantities on a group of intercity EMU and DMU and the number ofintercity trains in a line per day.
