PK is represented together with multi-factor flow chart (MFFC) and multi-level document (MLD).

Single factor analysis and multifactor comprehensive mapping method——reconstruction of quantitative lithofacies palaeogeography;

On the basis of all kinds of stratigraphic and petrologic data of outcrop and well sections,the maps of single factors and sedimentary facies of the Paleocene-Eocene,Oligocene and Miocene were compiled with the single factor analysis and multifactor comprehensive mapping method proposed by Professor Feng Zengzhao.

Based on all kinds of qualitative and quantitative data of stratigraphy and petrology of outcrops and well logs,according to the single factor analysis and multifactor comprehensive mapping method which was proposed by Professor Feng Zengzhao,the maps of single factors and sedimentary facies of the Lower,Middle and Upper Jurassic have been compiled.

Owing to the non-linearity of the figure factor and the location precision,it must study the new calculation method and the precision estimation method when many time-difference lightning location local area networks had been connected into the large lightning detection network.

According to the influence of figure factor in lightning location system with fixed detection precision,a hexahedral error distribution of cloud-flash position has been constructed through the definition of position face angle and elucidation of the involved method.

Iterative signal detection algorithm based on factor graph in MIMO systems

An intuitive factor graph is adopted to describe the relationship of these terms.