Line survey inverse calculation application in the setting out for highway construction;

General algorithm for inverse calculation of open uniform B-spline curve;

This paper also realized the inverse calculation of UTM projection using the programming of VB, according to UTM projection coordinate, could calculate the longitude and latitude coordinate.

It is validated by inversion and illuminated that the new theoretically lowest tide level has a higher guaranteed rate.

A relatively detailed analysis was carried out on the key problems in the modification of the determination method on vectors of offset points and nodal points,the selection and optimization of weighted factors and the inverse computation of controlling apex etc.

Unlike the majority of the existing backcalculation programs that iteratively adjust all the layer module to match the measured deflections,the proposed method first determines the subgrade .

The parameter back-calculation of the pavement layer s resilient elastic modulus and its nonlinear parameters in stress-strain relation to know the stress condition of the pavement is the key to evaluate the pavement bearing ability.

Mechanistic modeling for particle size measurement by ultrasonic technique and inverse calculation of particle size distribution;

The permeability parts of aquifer are set up by using cluster analysis and fuzzy comprehensive judgment and the rank relationship of permeability coefficient of every part of aquifer is given and the way to enhance the precision of inverse calculation of permeability is described.