The transom condition for high-speed displacement ships is discussed.

The reasonable mathematical modeling and transom conditions for the transom flows are investigated through analyzing the physical characters of transom flow phenomena of high speed ships.

Concept of condition equation in Structural Mechanics;

Dummy variable is introduced to TGARCH model so as to reflect simultaneously the asymmetry and week effect in waving of conditional variance,which is used to analyse waving of in the Shanghai and Shenzhen stock index.

Based on the RV-ARMA model,it is discussed that the persistence of conditional variances has a effect on capital asset pric.

In this paper we firstly introduce the conceptions and the properties of conditional mean, conditional variance and the persistence of autoregressive conditional.

The first,the ebb and flow of military might on both sides are different during the process of overthrowing Qin;secondly,the results of enfeoffment on both sides are different;and the third,the rear conditions both sides depended on are different during the long military struggle.

Non-recovery ratio,a new risk measure for insurers,which focuses on the interest of policyholders and supervisors,is proposed based on some risk measures such as value at risk,ruin probability,expected policyholder s deficit, and especially TailVaR.