Assessment of transgenic wheat (triticum aestivum L.) by gene flow;

Low frequencies of transgene flow between Bt/CpTI rice and their non-transgenic counterparts under alternating cultivation;

The studies on gene flow from GM herbicide-tolerant rapeseed to cruciferous weeds;

The random gene drift, seIection and crossing and inbreeding forms the principal reasons that specific genes lost in population, the effective size of population and scientific organization of systematic breeding are the important contents of conservation.

ECG baseline drift correction based on smoothing filter;

ECG baseline drift depress algorithm based on multi-resolution analysis;

Mud signal baseline drift rectification in measurement while drilling;

Objective:Bioimpedance signal is often influenced by respiration etc which cause baseline wander.

A method using wavelet approximation to remove the baseline wander in electrocardiogram is proposed in this paper.

We apply the multi-resolution analysis(MRA) of wavelet transform(WT), which was proposed by Mallat [5], to suppress the three main types of noises existing in electrocardiogram(ECG) signals: baseline wander,powerline interference and electromyographical interference.