The master plots method along with a statistical procedure was employed to determine the kinetic model and kinetic parameters of the thermal decomposition process of stannous oxalate,which led to the produce of stannous oxide and conformed .

Iso-conversional method was applied to estimate the apparent activation energy E_a,and the most probable mechanism function G(α) was determined by using the master plots method.

Also, the multi-heating rate method along with master plots method was employed to estimate the kinetic triplets of the thermal decomposition process.

Research on main curvature method for fracture prediction in Jialingjiang formation of Maliuchang;

This article here carries out a study from the perspective of its main priciple, main method and evaluation criteria.

Based on the analysis of bridge reinforcement,the author provides the main method of bridge reinforcement,thus utilizing economic,simple and suitable measures and reaching the effects of improving existing bridge load capacity,bending resistance ability,shear capacity and load grade,and promoting increasingly developing railway bridge construction.

The formula of tube expanding force is deduced using the slab method.

material thickness variety and material work-hardening,which should not be omitted during the course of deformation processes,a new formula and its concrete expression of expanding pressure calculation P=f(K、n、μ、α、r、r_0、k_e、t_0、t=f(t_0、r_0、R)) is set up by utilizing slab method that belongs to one of the theoretic methods solving the proble.