Design of centrosymmetric image display program based on DAM6416P;

Differential protection based on waveform symmetry is furtherly studied and analyzed through a mal-operation incident when the unloaded power transformer is connected to the power system.

In consideration of the frequent mal-operation of transformer differential protection based on the principle of waveform symmetry, this paper analyzes the internal relationship of the waveform symmetry principle and the secondary harmonic restraint principle based on the generating mechanism of the magnetic inrush current of the three-phase transformer.

In connection with analyzing operation of two differential protections for transformer, The criterias for exciting current of differential protection were compared,and further explanation for the principle of waveform symmetry.

In this paper, the convergence of iterative methods for the linear system Ax=b is investigated, where A is a centrosymmetric M-matrix.

The concepts in References 1 and 2 are broadened and the properties of the centrosymmetric and skew centrosymmetric matrices are exploited in detail.

Three centrosymmetric 4,4\'-bis(N\'-substituted acylthioureido)biphenyls were synthesized by the 1.

A clustering algorithm based on central symmetry;

The heavy integral of the successive function of central symmetry;

Based on the depth research on extension array manifold of uniform circular, for some uniform circular arrays which had subarrays with the nature of rotational invariance and had the nature of central symmetry two ESPRIT algo-rithms were presented, the first algorithm reduced one time of SVD, the second algorithm avoided parameter pairs.