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您的检索式：作者名="DAI JiaQing"
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| 1 | The entropy characters of point mutation显示文摘The biological diversity, which depends on the genetic material DNA, is the foundation for a species to survive and evolve. The entropy is the best measurement of biological diversity. Based on the sin-gle-parameter and the two-parameter models, here we established some differential equations about the point mutation of a DNA sequence with finite length, as well as some functions describing the processes of the variation in quantities of 4 kinds of bases (A, T, G and C) in the DNA sequence. At the molecular level, we discussed the entropy characteristics of point mutation. The results proved that a species maintained its entropy and evolved in the direction of the increasing biological diversity. In order to testify the theoretical results, we did a series of computer simulations of random point muta- tion in Matlab environment. The results were well consistent with the theoretical researches. | MA GuoJi LIANG LiJing FAN YanHui WANG WenJuan DAI JiaQing YUAN ZhiFa | 2008 | Chinese Science Bulletin2008，53，19： | 2 |
| 2 | Plasmonic evolution of atomically size-selected Au clusters by electron energy loss spectrum显示文摘The plasmonic response of gold clusters with atom number(N)=100–70000 was investigated using scanning transmission electron microscopy-electron energy loss spectroscopy.For decreasing N,the bulk plasmon remains unchanged above N=887 but then disappears,while the surface plasmon firstly redshifts from 2.4 to 2.3 e V above N=887 before blueshifting towards 2.6 e V down to N=300,and finally splitting into three fine features.The surface plasmon’s excitation ratio is found to follow N^(0.669),which is essentially R^(2).An atomically precise evolution picture of plasmon physics is thus demonstrated according to three regimes:classical plasmon(N=887–70000),quantum confinement corrected plasmon(N=300–887)and molecule related plasmon(N<300). | Siqi Lu Lin Xie Kang Lai Runkun Chen Lu Cao Kuojuei Hu Xuefeng Wang Jinsen Han Xiangang Wan Jianguo Wan Qing Dai Fengqi Song Jiaqing He Jiayu Dai Jianing Chen Zhenlin Wang Guanghou Wang | 2021 | National Science Review2021，8，12： | 0 |
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