Therefore,focusing on evaluation comments of products,this study proposes a FAIR (Fuzzy Adaptive resonance theory network based Information Retrieval) scheme by introducing fuzzy ART network,Latent Semantic Indexing (LSI),and Association Rules (AR) discovery to analyze evaluation comments of product features.

Determination of dilatancy angle for geomaterials under non-associated flow rule

The softening modulus and non-associated flow rule are introduced in this paper.

As shown in the theory of generalized plastic mechanics,the associated flow rule is just a particular case of non-associated flow rule.

As shown in the theory of generalized plastic mechanics,the associated flow rule is just a particular case of non-associated flow rule.

For example, the associated flow rule is often used at present, but it is shown by experiments that it doesn抰 adapt to geotechnical materials; the volume deformation which is larger than real deformation is produced in calculating, but it is assumed to be constant in classical analyzing theory; the velocity slip line is the same as the stress characteristic line according t.

Based on the linear failure criterion and associated flow rule,the bearing capacity of a strip footing under action of inclined loads problem was studied by means of the kinematical approach of limit analysis theory.

Several types of low-order elements in the finite element method are employed to perform numerical analyses of ultimate bearing capacity of soil foundation under strip footing in which the nonassociated flow rule is used while Mohr-Coulomb criterion is used as the yield function.

In this method,it must clean and consolidate the data first in database by data mining,and then,use association rules algorithm to analysis that data,and choose drill in the end.