Objective To research and construct dynamic electrocardiograph (ECG) simulation model/algorithm to simulate different kinds of clinical ECG,where the heart rate can be infinitely variable,and to develop one platform for fast-demo and analysis of theoretical wave based on this algorithm which can be implemented in ECG training and teaching. Methods According to different characteristics decoupled one complete ECG wave to 4 parts,including P-wave,PR-section,QT -wave and TP -section. P -wave and QT -wave database were set up accordingly to find the relationship algorithm between PR-section and heart rate,TP-section and heart rate. With the synthesis work of the algorithm and clinical diagnosis theory,ECG simulation mathematical model /algorithm,dynamic link library.(dll) and software interface were developed by C++. Results Through comparing the ECG simulation results with clinical samples,the veracity and validity of the mathematical model/algorithm was verified. Conclusion The software module based on this model/algorithm is very valuable for ECG training and teaching in clinic,and can be implemented in the development of more advanced ECG relative software and devices.

To investigate the effects of anti-androgen drugs and melengestrol acetate (MGA) on development of regrowth antlers in 6 year old sika deer, twenty healthysika deerwith similar body weight and antler weightwere randomly divided into five groups by using single factor test design: flutamide (=4), bicalutamide (=4), progesterone acetate (CPA, =4), melengestrol acetate (MGA, =4), control(=4). All deer were fed with same diets and were housed outside together in an opened fence of 15 m×30 m with free access to water and feed. Treatment groups were injected subcutaneously sustained-release agents of the four drugs respectively when two-branched antlers were harvested. The control group had no special treatment. In the experiment period of 60 d, blood sampleswere collected for 4 times for each deer. The concentration of testosterone in plasma was tested and analyzed to compare the changes between different groups. Development of regrowth antlers was observed. At the end of the experiment, regrowth antlers were weighted and analyzed. The resultsshowed that the weights of regrowth antlers in treatment groups were significantly greater than those from control group and the weight gain (as compared with the control group) was 100.50%, 64.46%, 87.16% and 117.46% respectively in flutamide group, bicalutamide group, progesterone acetate group and melengestrol acetate group. For plasma testosterone concentration, it was not significantly different in the early stage (in the first 35 d), but at the end of the experimen, it was significantly higher than that of earlier stage (<0.01) in various groups. Testosterone concentration of flutamide treated group was significantly lower than that of the other groups (<0.01), while the level inbicalutamide and MGA treated groups was significantly higher than that in other groups (<0.01). The results showed that both anti-androgen drugs and MGA treatment promoted the development of regrowth antlers and increased the weight of regrowth antlers, where the effect was most significant by MGA treatment. From the morphological observation of the antlers, it was found that anti-androgen and MGA treatments prolonged the growth period of regrowth antlers through delaying the ossification of antlers. However, plasma testosterone concentration was not affected by the treatments.

Cervi Cornu Pantotrichum, as a traditional Chinese medicine, has great potential for development. However, the identification and quality control system is not perfect, leading to the market chaos and chronic slow growth in deep processing of Cervi Cornu Pantotrichum. This paper gives an overview of present situation in identification and quality control system of the Cervi Cornu Pantotrichum, and analyzes present problems. Based on these results, the feasibility study scheme in identification and quality control system for Cervi Cornu Pantotrichum would be then put forward, providing ideas to establish its comprehensive evaluation system.