Simulation method on power and sample size calculation in related rate non-inferior trial;

The relative efficiency of the least square estimation in singular linear model;

Analyzing isotopic abundance by method of relative efficiency;

The relative efficiency of the least square estimation in singular linear model;

It is also analyzed that the parameters of initial pressure angle and its increment may influence the relative curvature at the meshing point to become zero.

If the relative curvature of a certain curve on the first control point and the direction angle of the first port’s tangent vector is given,here can get the whole curve by using the character of the port of quadratic uniform B-spline curve.

In this article the authors first put forward a few simpler and easier methods for calculation the evolute equation, the formula of relative curvature; then, discuss the methods for calculating the equations of the tangent line, the normal plane, the osculating plane, the binormal, and the rectifying plane; and finally popu.

The relative efficiencies of a class of linear estimator with respect to generalized least square estimator in linear regression model;

For the linear model with aggregated data,In this paper,we proposed definition of the Generalized Ridge Estimators and the Improved Generalized Ridge Estimators of the parameters and two kinds of relative efficiencies of the estimators,in rate of popularize Eucliden standard a sense and in rate of weighted Euclidean standard a sense.

The upper bound of the two kinds of relative efficiencies are obtained.

Discusses the change of heart rate when one exercise under the high work load, puts forward a method which applies the relative heart rate to judge limited physical work load, and concludes a formula about the maximum time which human body can keep when one work under the high work load.

nicotianae,the changes of the relative leakage of sensitive,lower-resistant and higher-resistant strains treated with metalaxyl at different concentrations within 540 minutes were studied.

Then (changes) of the sensitivity to osmolarity and relative leakage at different concentrations of (tebuconazole) in different times were compared between resistant strains and (sensitive) strain respectively.