Based on the MPEG-4 video traffic of low quality and high quality, a hybrid model is presented to capture the frame size at multiple time scales: the change of scene and fluctuation of bit-rate.
针对MPEG - 4的低质量和高质量两种编码质量的视频源,给出了一种混合模型,此模型在多个时间尺度上反映帧大小的变化:场景的变化和同一场景内码流的波动。
Meristem culture of Oriental Hybrid Lily through its scales was studied in MS medium with different external hormone treatments.
以东方百合品鳞片为外植体,采用MS培养基和不同外源激素配比,进行组织培养,研究其茎尖分生组织分化。
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