Correlation and path analysis on characters related to flower yield per plant of Carthamus tinctorius;

Application of Path Analysis to the Affect Factor Analysis of the Outpatient Service in the Navy;

Gorrelation and path analysis of agronomic characters of Panax notoginseng;

Research on Packers and Pipe Strings of Large Drift Diameter Fracturing;

Analysis of finite-element strength of reducer tee;

To change the limit of LPR test valve which need annulus pressure to keep static in opening period,a new model pressure controlled full bore testing valve which is applied for our oilfields' features is developed.

Spacer system is an important component of full bore perforating.

Full bore pressure detonator is one of key parts in full bore perforation system and its performance takes a vital role in obtaining operation result and may even endanger the security of perforation operation.

Factor and path coefficient analysis on quantitative characters

With the methods of correlation and regression balance and path coefficient analysis, relationship between rice yield and its components were studied in different rice populations.

The results of both multiple linear regression and path coefficient analysis indicated that phosphorus and iron contents in flue cured tobacco leaves of Lichuan reduced the smoking quality,While N,Cu and K application could increase the smoking qualiry,which was in accordance with the results of linear correlation analysis.