Bond connectivity topological index Si based on chemical bonds was defined by using a matrix method.And Si is formed by atomic parameters such as the number of
The manner by which the particles settle in the laminar flow region is first described and the characteristics of co-sedimentation of two-species particles are
A non-contacting electrical resistivity measurement device was used for measuring the electrical resistivity of cement paste incorporated with retarder.The hydr
A Kind of homogeneous resin, which can be used as thermal resistant adhesive and matrix for composite,was prepared by bis(4-maleimidophenyl)methane (BMI), 4,4&#