AIDS globalization can be seen from four new trends;from high-risk groups to general ones;from older to younger(In year 2006 in the world,40% of newly HIV infected are youth aged 15 to 24);rapid spread via sexual transmission and drug-injecting(In year 2005 in China,the two types account for 49.

Real time dynamic updating of 3D visualized geological model of open-cut mine;

Research on Method of 3D Geological Modeling and Dynamic Updating Based on the OO-Solid Model

The paper first introduced the theory of Ajax and its function,then through a example it put foward the general method of dynamic updating webpage data based on Ajax under the condition of Java Servlet.