Previous studies revealed that the reflection characters of organic reefs might be classified into direct and indirect indications.

In the technical design of seismic exploration,we usually need information concerning reflection characters and velocity of the target strata.

The study of emotion and reaction characteristics of second setters and killers of the Chinese male volleyball teams;

Volcanic edifice reflection feature and its seismic identification method;

Using a vast amount of seismic, gravitational and magnetic data as well as related drilling and geologic data acquired in the west of Zengmu basin, the paper elaborated seismic reflection feature, depositional feature, regional geology and structural history of the region and synthetically analyzed the geologic structural feature in detail.

Accurate identification of reefs requires us to know the growing feature of reef-building organism and geologic evolution rule in studied zone, clarify seismic reflection feature of reefs and diffe.

This paper adopts tick data as samples,studies the relationship between the 1-minute and 5-minute stock yields and the net buying order flow based on the VAR methodology,then discloses the feedback trading characters of the trader in the stock market.

In this papar, the least squares solution of inverse eigenvalue problems is transformed into the minimum norm least squares solution of linear equations by Kronecker product.