To discuss the feature of geological structures and evolution of Jurassic well fields in Muchengjian, Xishan, Beijing through drilling holes and with well material, the development feature of 5 groups of folds is revealed, whose axial trace directions are N10°±E, N22°±E, N43°±E, N65°±E and N20°±W, and correlated faults of this area and expand the tectonic control of the development and occurrence acting on the coal seams.
In this paper, thermal evolution history of organic matter of the source rocks and hydrocarbon generation history have been researched by TTI method, hydrocarbon migration direction and migration times were probed combining with the area structure development feature;
Distribution pattern of the main reservoir intervals on lateral and longitudinal have been predicted by researching on development feature and control factors of the reservoir intervals, the actions of reservoir conditions in hydrocarbon accumulation and bearing also were probed combining with pore evolution feature;
According to the development feature of diagonal crack of concrete frame beam under shear,a rational and reliable modification for the formula suggested by “Technical Regulations of Strengthening Concrete Structures by Externally Bonded Carbon Fiber Sheet” was presented.
This paper proposes the countermeasures in coping with the technical development of Construction machines in China on the basis of analysis of the development feature of international construction machines and the gaps between international and domestic construction machines in technical development.
Urban leisure industry is developing continually with the increasing of urban residents' consumption level. This article begins with the concept elaboration of leisure and leisure economy, it inquires into the affected factors and the development feature of urban leisure economy on the basis of the analysis of the current development situation of urban leisure industry.
This paper studied grouting renovation of karst subgrade subsidence from Xinhai station to Datang station on Panxi Line,and introduced the development feature of karst subgrade subsidence,the actual situation of the subsidence,its mechanism,the methods of grouting renovation,and the quality check-up of grouting.
This paper emphatically describes recent developments of the semiconductor film materials such as amorphous semiconductor,wide-gap material, nanometer sized structure, porous silicon,superlattice,and quantum microstructure are used for microelectronics, and point out that disordering of atomic structure, widening of material handgap, freedom of band cut-out, reducing of dimenesionality and quantizing of artificial material embody the development feature of the semiconductor film materials.
The paper discusses the new communication technology and the development feature of Satellite communication, Mobile communication, Computer digital communication, Fiber optic communication and Personal Communication.