排序方式: 共有19条查询结果,搜索用时 62 毫秒
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与传统的数据处理方法相比,利用Origin数据分析软件不仅能够得到精确的结果,而且能有效减小实验误差,提高物理实验教学的效果。 相似文献
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牛天然纤溶酶原Kringles结构域片段的获得及其抑制内皮细胞增殖作用研究 总被引:2,自引:2,他引:0
利用猪胰弹性蛋白酶和尿激酶限制性酶切牛纤溶酶原,获得了纤溶酶原Kringles结构域片段Kringles1-3(K1-3)和Kingles1-4(K1-4),研究发现,在没有自由巯基供体存在的条件下,尿激酶酶发牛纤溶酶原也能够产生K1-4,从而认为存在由尿激酶酶切牛纤溶酶原直接产生K1-4的途径,所获得的K1-3和K1-4对恒河猴脉络膜-视网膜RF/6A血管内皮细胞的增殖有抑制活性。 相似文献
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Based on the meson-meson mixing and Regge trajectory, this paper establishes the mass relations which can describe the mass spectrum of 1^1 P1 meson state. Using these mass relations, it obtains the mass of K1B, hi (1380) and hc(1P) to be 1358.5MeV, 1468 MeV and 3543.9 MeV, respectively. The results are compared with other theoretical results and should be tested by experiments in the future. 相似文献
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电容器的电容是电路的重要参数,如何精确测量是问题的关键。本文利用示波器测电容,通过几种方法对比分析及数据处理,给出最佳方案。 相似文献
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In the qq quark model, the states π(1300), η(1295) and η(1475) are assigned as the 2^1S0 meson nonet. The mass of the isodoublet remains interesting and needs further confirmation in experiments. This paper employs the phenomenological trajectory on the (N, M^2)-plot and meson meson mixing methods to calculate the mass of this state, the calculated results are 1341 MeV and 1311.58 ± 59 MeV respectively. These predictions can be compared with experiments in the future.[第一段] 相似文献