The essay discusses several hypotheses in respects of humanity,behavior models and rational ability,and thinks that as for this question,we will have both the general understanding of hypotheses and the special master in education.

The physical and mechanical properties and durability properties of the geopolymer blend cement(GBC) concrete and the ordinary Portland concrete(OPC) are compared in laboratory experiments.

A contrast between BL-environment friendly flame-retardant and common inorganic flame-retardant have been made by making particleboard and detecting the physical and mechanical properties,the flame retardant properties of these particleboard.

The studies were made on the manufacturing conditions of Crofton weed MDF, its physical and mechanical properties and the factors affecting the properties.

Relationship between fabric′s wrinkle recovery angle and its physical and mechanical property;

The mechanical properties of materials were characterized by the strain-stress cu.

Based on laboratorial experiment,the mechanical properties of expansive soil modified whit lime fly ash are analysed in this paper.

Objective: To discuss the hot-pressing technique of wood fiber and waste polypropylen(PP)and study the effects of different modifiers on the mechanical properties of the composites.

In recent years, the studies on the polymeric compatibilizer applied in polypropylene composites were more and more, which was use to promote the dispersion of filler in polymer matrix, improve the adhesion between filler and matrix and increase the physical and mechanical properties of polymer composites.