A finite element program with two different soil models is adopted to study the negative skin friction of an unloaded single pile embedded in the settlement tro
The necessary conditions for the existence of weak designs are given in the form of two inequalities in this paper. The relations among weak block designs(WBDs)
Some properties of BZMV^dM-algebra are proved, and a new operator is introduced. It is shown that the substructure of BZMV^dM-algebra can produce a quasi-lattic