This paper describes the basic statistical characteristics of non stationary Poisson process of the events and differences between non stationary and stationary Poisson processes, and applies the non stationary Poisson process to study the long and medium term probabilistic earthquake prediction in North China seismic area.

Two space time data sets,including earthquakes in north China and SARS in Beijing,are used to application modeling and performance evaluation of MM model.

Hydrocarbon Potential of Paleozoic Marine Sequence in Northern China;

Water resource crisis and the way overcoming it in Northern China.;

Investigation of Type Selection of Medium Speed Pulverizer Used in Thermal Power Plants in Northern China;

Evaluation on Efficient Source Rocks of Upper Paleozoic in North China;

A discussion on factors relating to coalbed methane content of coal seam in the area of north China;

Inside buried hill reservoirs in North China.;

Discussion on thermal evolution and secondary hydrocarbon generation of organic matter from Upper Paleozoic coal measures in Huabei area;

Huabei area suffered a sedimentary interruption of about 130 million years during Late Ordovician to Devonian period.

Determining average seismic velocity ratios (V__S/V__S) in the curst in North China region by multi-station method;

Current situation of and actions for the construction of campus sports spiritual culture in common colleges and universities in North China region;

By using 48120 digital records of 4068 earthquakes during 1993~2002 in North China region,the three dimension velocity imaging of pseudo eave is made.