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genhunter

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专业: 肿瘤化学药物治疗

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超级老快: 金币+50, 翻译EPI+1, ★★★很有帮助 2016-03-22 16:20:12

1. 我们使用软件，选取晶粒分布较为均匀的微晶玻璃TEM图中多次随机测量，测量并画出一个晶粒的中心点到周围最近邻的几个晶粒的中心点的直线，然后测量从单个晶粒表面到其他晶粒表面的距离，最后绘制统计图。
We picked some TEM photos in which crystal particles were relatively evenly distributed, did random analysises by using software, to first identify the center of a crystal, then did same for the neighboring particles. We then measure the distance from the center of one crystal to the same of the others, and then repeated the same measurement, only to change it from center-to-center to from the surface of a crystal to the same of the others, and plotted the data into a histogram.
2.Zn只有67Zn 有自旋，67Zn的自然丰度只有4%，而且67Zn四偶极作用很强，共振频率又低，所以得不到信号。（自然丰度：natural abundance）
Among all isotopes of the element Zinc, only 67Zn possesses self-spin property. Due to the facts that it is low in the natural abundance (only 4%), and it has a very strong quadruple effect, together with a low frequency in resonance, we were unable to obtain any measurable signals.

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