A design of a gradient waveform generator with self-triggering function for magnetic resonance imaging(MRI) is proposed.

The spectrometer is one of the key components in the MRI system, and the gradient waveform generator is one of the important units in the spectrometer.

This thesis gives a detailed discussion about the gradient waveform generator (GWG) design with the analog pre-emphasis in the digital spectrometer system.

Traveling-wave starting algorithm based on morphological gradient and wavelet transform modulus sum

On the basis of basic morphological transforms and their combined modes,transient current signals can be extracted by use of morphological gradient with adaptive weighting.

This paper presents a novel algorithm of identifying the inrush current and short circuit current caused by internal fault on the basis of transient detection using morphological gradient, meanwhile transient current signals are extracted by use of morphological opening and closing algorithm.

Then edge detection based on morphological grads provides better license plate s edge and is propitious to locate exactly.

The effect of the ecological gradient on the economic productiona of Zea mays L.

Two ecological gradient axes (EGA) were suggested: EGA(CA) and EGA(r2).

By the methods of TWINSPAN and DCCA,this paper studied the ecological gradients of the plant communities in South Lüliang Mountains,in terms of the interactions between plant species and communities and environmental factors.