Coal storing and loading have much more influence on coal quality. In the paper, a goalprogramming model has been constructed to determine the ideal quantity ex
The SiC whiskers (SiCw) synthesized from rice hulls is studied in this paper. The properties of the application in the composite materials are tested, and also
Theoretical analysis conducted of uniaxial compressive strength and tensile strength ofartificially frozen soil and P waves and S waves and of the relationship