Then,from the threedimensional attractors,the correlation dimensions,which reflect the complex character of the attractors,are calculated and the computation of the maximum Lyapunov exponents of the temperaturetime series is carried out in different heat fluxes.

As the development of grid and data mining,advance an algorithm of maximal frequent itemset data mining based on grid.

Combined with the project examples,it introduces the construction methods of basic mass concrete,gets the calculation to the temperature of mass concrete,foundation restraint coefficient,shrink,maximum stress and the anti-crack coefficient,and puts forward the steps of assuring the not crack of concrete,this will assure the project quality of mass concrete.

It has found out these members dangerous position with the maximum stress and calculated the stress value, made the goal and the range of daily check more definite and concentric, provided the theory basis for establishing reasonable particle check system.

The stress accumulating region and the maximum stress is calculated through cosmosm statics analysis program.

Based on the electro-technology theory,this study defines the ratio of maximum torque Tm to starting torque Tst as the starting modulusλst,and reaches a conclusion that X20 can be calculated by using the rotor phase resistance r2 and the starting modulus A,,.

Solution on the maximum error of parallel 6-DOF platform using the improved particle swarm algorithm;

Introduces the algorithm of three points arc in maximum error approximating curve,theoretically making arc approximated sections minimum.