Objective To study the significance and technology of diagnosis of nerve root compression in patients with lumbar disc herniation by the method of magnetic resonance myelogram(MRM) Methods Two groups of patients with lumbar disc herniation were selected according to nerve root pain.

A Computational Solution to Eigenvalues of Functional Determinants;

The Eigenvalues of Some Specialmatrices in Minkowski Space;

Many methods of electro-mechanical mode eigenvalues calculation based on iterative need more exact initial values of system eigenvalues,but the existing fast calculation method ignores the resistance and the asymmetry of system matrix,so the result of estimation has some errors which maybe determine the stability of power system when the error belongs to the key weak damping mode.

This paper has derived characteristic roots of a class sparse symmetric matrix from using decreasing order method.

The basic equations for the transient two phase cavitation flow are formulated and three conditions of the characteristic roots of the basic equations are discussed, namely, a.

This paper discusses the solution of characteristic roots for a four -order analytic square matrix in a stationary coordinate axis system for victor speed control system of asynchronous motor of a flux observer.

Matrix and the Characteristic Root of its High-time Accompany Matrix;

The study on circle section of quadric surface by the characteristic root;

Mycorrhizal characteristics of Dendrobium officinale were observed under microscope.

The way to solve latent root of the second order cyclic number equations;

The relationship between the rank and zero latent root of real matrix is studied and proved in this paper The results and the applied example about latent root s module are given out under the conditions that the column vector group of the real matrix is nonzero direct cross and the column vector s module is equal.

But most of them are to find the real latent root.