Atmospheric precipitation leads to the increase of moisture in subgrade. The and soil migration subgrade is a key scientific problem evaluating service performance resolving or preventing mud pumping. Using self-developed testing system as well numerical simulation model, detailed study dynamic hydraulic characteristics, water mechanism, fine pumping properties was conducted. results showed tha...

In this paper, we prove that any C1-persistently positively expansive map is expanding. This improves a result due to Sakai (Sakai 2004).

Abs t rac t . This paper describes a new technique for reducing the complexity of algorithms, such as those used in digital signal processing~ using a genetic algorithm (GA). The method, referred to as expansive coding, is a representation methodology which makes complicated combinatorim optimisation tasks easier to solve for a. GA. Using this technique, the representation, operators and fitnes...

Affected by global warming, permafrost thawing in Northeast China promotes issues including highway subgrade instability and settlement. The traditional design concept based on protecting is unsuitable for regional construction. Based the of allowing thermodynamic characteristics a block–stone layer structure, new structure using large to replace foundation proposed has successfully been practi...