The fashionable textbook of circuit and electric machine have not pay sufficient attention to the reference direction,even is given error description.

Circuit simulation experiment indicates that it has actual meaning and function to analyse actual circuit by grasping settlement of reference direction in PSpice.

The “reference direction”, which plays an important role in the electric circuit, is a kind of method and means for analyzing and calculating the electric circuit.

Study on setting up the reference method for the packed cell volume and its application;

Study on setting up the reference method of catalytic concentration of aspartate aminotransferase(37℃) and its application

Objective To set up a reference method for platelet counting-the RBC/PLT ratio method.

When the integrability of the gradients of the solutions is lower than that of the reference equations,the former can be improved approximately to the level of the corresponding linear equations by combining the properties of maximal functions with Caldern-Zygmund decomposition theorem.