A stratified model for the analysis of ground subsidence due to underground excavation is established based on elastic-thin-plate bending theory in the rock mass displacement fields.

Based on an idealization of cancellous bone as a periodic array of bone\|marrow layers that is stratified model,Schoenberg s theory was applied to analysis propagation properties of two compressional modes(fast and slow waves).

The regression of spherical model and its nugget structure of theoretic variogram is discussed and the weighted linear programming method is proposed in this paper.

Authors separatelly use linear and spherical model to fit test covariance func- tion and use iteration to conculate the kriging equitions.

Interpolating when data space satisfied the given statistical character,then adopting spherical model of assistant functions to show 3D geological character realistically.

Verification of 4-Way Handshake Protocol Based on State Model

Four state models for explaining various features of MFB in different phases were proposed , and the corresponding control factors were pointed out.

The state model of Zhenjiang medical insurance microsimulation model includes person changing,outpatient and inpatient three event modules,this paper introduces mainly the constructing think and simulating process of every event module