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1)  Subset nearly compact
近似列紧
1.
In this paper,we have made research on the subset S closed spaces(sequentally S closed spaces),the subset H closed spaces (sequentally H closed spaces) and the subset nearly compact spaces (sequentally nearly compact spaces).
该文对S-列闭(S-序列闭)空间、H-列闭(H-序列闭)空间、近似列紧(近似序列紧)空间进行了研究,在各类S-闭空间(各类H-闭空间、各类近似紧空间)之间的相互关系上,得到了较为完整的结
2)  Sequentally nearly compact
近似序列紧
3)  Para-nearly compact
仿近似紧
4)  Nearly Compactness
近似紧性
1.
Nearly Compactness and Almost Compactness in Fuzzifying Topology;
不分明化拓扑中近似紧性和几乎紧性
5)  tight-binding approximation
紧束缚近似
1.
By using tight-binding approximation,all kinds of s in gle-walled carbon nanotubes are simulatedly heated from 300 to 4 000 K,and the ir stability is studied.
运用紧束缚近似分子动力学模型,模拟研究了各种单壁碳纳米管(SWCNTs)在300~4 000 K范围内的热稳定性。
2.
We have developed a new approach to calculate the electronic structure of zinc-blend CdS quantum dots under the frame of tight-binding approximation (TBA), which is compared with the effective mass approximation (EMA).
在紧束缚近似下发展了一种新的计算方法 ,计算了闪锌矿结构CdS量子点的电子结构 ,并与有效质量近似作了比较 。
6)  tight binding approximation
紧束缚近似
1.
This paper represents the band structure of Zigzag carbon nanotubes by using of tight binding approximation method, analyzes the energy band structure and explains qualitatively the electric propertie
用紧束缚近似方法给出锯齿形碳纳米管的能带,对其能带结构进行了分析,并对其电学性质作出定性的解释。
2.
One dimentional tight binding approximation and Green function method are used to investigate the influence of a substitutional impurity atom over H chemisorption which is on the surface of ZnO/Ni system.
本文在紧束缚近似下,利用格林函数方法和ES化学吸附理论研究杂质对H在反担载催化剂ZnO/Ni表面化学吸附的影响。
补充资料:紧束缚近似
分子式:
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性质:能带计算的近似方法之一。与分子轨道理论相似,紧束缚近似从原子轨道波函数出发,经线性组合构成晶体轨道的波函数。波函数系数的选用考虑了晶体的周期性,所构成的周期性波函数也称做布洛赫函数。从能带的计算中,将能够得到在动量k空间中晶体波函数的分布和所对应的本征值。从而能够了解能带在k空间的分布和能态密度的分布。紧束缚近似与化学家所熟悉的分子轨道理论是完全一致的,从中可以了解到哪些能带主要是由阴离子的p轨道构成,哪些是由过渡金属离子的d轨道构成,从而使我们对固体中的化学键有一个全面的了解。

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