Based on summarization of lightweight aggregate construction pre-treatment methods,these methods which not include pre-wetting,soaking pre-wetting,pressure pre-wetting,vacuum pre-wetting and so on are simulated by experiments.

Current situations of pretreatment method research of the refractory gold ores with as and carbon

Some tropical plant fibers and their development and application were reviewed,and some fiber pretreatment methods enumerated.

The current situations of industrial application and research on pretreatment methods which include roasting oxidation, pressure oxidation, bacteria oxidation and chemical oxidation for refractory gold ores at home and abroad were summarized.

Denoising control signals for pulse width modulation valves based on the optimal pre-processing method of multi-wavelet;

Based on the introduction of multiwavelets and their pre-processing methods,the influence on multiwavelet filters response with the different pre-processing methods are discussed and compared in this paper.

A precondition method was applied to chemical non-equilibrium flow.

All speeds control equations were deduced from traditional compressible equations with precondition method and applied to 2D inviscous/viscous flows at all speeds.

All speeds control equations were deduced from traditional compressible equationswith precondition method and applied to 2D inviscous/viscous flows at all speeds.