查询词典 fermi

Especially, the difference of the nearest-neighbor hopping integral is due to the effect of the curvature of the carbon nanotubes. So, in fact there is a very narrow energy gap near the Fermi energy of unsquashed metallic zigzag carbon nanotubes, and, a slighter deformation is required to open a considerable energy gap in metallic zigzag carbon nanotubes than that in armchair nanotubes.

特别是，最近邻格点之间的跃迁积分的变化与碳纳米管的曲率紧密相关，因此实际上，理想金属型 zigzag 碳纳米管本身具有微小能隙，而施加比 armchair 碳纳米管小的多的压缩量，就可以使金属型 zigzag 碳纳米管在费米能处打开相当的能隙。

Based on the perturbation theory,the influences of the Fermi resonance interaction between the two and three vibronic levels on the level energy,wavefunction,and the spectral line intensity are investigated in detail respectively.

本文考虑了分子振动非谐性所引起的振动能级之间的费米共振相互作用，利用定态微扰论，从理论上系统地分析了两态和三态之间的费米共振相互作用对能级能量、态函数和谱线强度的影响，在三阶非谐性近似下，得到了计及费米共振相互作用在内的能级能量、态函数和谱线强度的数学解析表达式。

Furthermore, when several bands near the Fermi surface are taken into account, we find that the interband gaps within the unoccupied bands are generally smaller than those of the occupied bands, indicating that the electron can hop from one band to another which is much easier than the hole.

而且，当研究费米能级附近的能带时，发现未占有带的带隙总体上要小于占有带的带隙，这表明在考虑声子参与的情况下，电子在带间的跳跃要比空穴容易得多。

The analyses of electronic structures shows that the catalytic reactivities for H2 adsorption of the different surfaces are dependent on the numbers of s orbital bonding electrons around Fermi level for the uppermost layer metal atoms which interact directly with H2. It is easy to form vacancy for hydrogen atoms next to iron atom, which indicates that hydrogen atom cannot be escaped, but it is difficult to from vacancy for hydrogen atoms next to magnesium atom, which indicates that hydrogen atom can be escaped. Hence it is thought that the change of dehydrogenating properties of MgH2 with or without a little iron addition attributes to the weakened bonding between magnesium and hydrogen.

分析电子结构发现：空位缺陷有助H2吸附于Mg表面，与Mg(0001)表面最上层与H2直接产生吸附作用的金属原子在费米能级附近s轨道的成键电子数密切相关；在Fe合金化MgH2体系中，与合金化元素Fe近邻的H原子形成空位的难度增加，H原子较难释放；与Mg近邻的H原子形成空位的难度减少，H原子容易释放；Fe合金化导致Mg-H之间存在较弱的成键作用，因此，MgH2体系的解氢性能得到提高。

The results from density of states show that O 2p hybridizes with Ni 3d, which results in electronic states at the Fermi energy spin polarization.

态密度结果显示Ni 3d 与O 2p发生杂化，导致费米能级附近电子态自旋极化。

The world's most powerful telescope for observing the universe in high-energy gamma-ray light, the observatory was originally called the Gamma-ray Large Area Telescope, but was rechristened after Italian scientist Enrico Fermi once the telescope was up and running in space.

这台世界上最强大的望远镜是通过高能伽马射线观察宇宙，最初这个天文台被称作&伽马射线广域空间望远镜&(Gamma-ray Large Area Space Telescope)，但是当这台望远镜建成后开始正常运行时，人们又根据意大利科学家恩里科·费米的名字给它重新命名。

Like all virtuosos, Fermi had a distinctive style.

像所有的艺术家一样，费米有他自己的独特风格。

Compared to the semiconductor NCs, metallic NCs as floating gates possesses several advantages, such as larger change of electric capacity, stronger coupling with the conduction channel, a wide range of available work functions, higher density of states around the Fermi level, and a smaller energy perturbation due to carrier confinement.

比较半导体奈米晶体和金属奈米晶体两者，金属奈米晶体作为浮动闸极有许多优点：对於电容特性改变量、较多种可供利用并设计的功函数、在费米能阶周围有高的状态密度以及不易受载子局限效应所引起能阶扰动等等。

We can conclude along with metal Fermi level elevating, its electrode potential is lowered.

由此得出随着金属的费米能级的升高，其电极电位会随之下降。

The transformation between I3F,C3F,t3F and YF of three generation quarks and leptons of Fermi type follows the hypercharge-spinor transformation,and so does that between I′3B,C′3B,t′3B and Y′B of their three generation supersymmetry companion s,antiquarks and antileptons of Bose type.

三代费米型夸克、轻子的I3F，C3F，t3F，YF间及它们的超对称伴子三代玻色型反夸克、反轻子的I′3B，C′3B，t′3B，Y′B间均满足超荷-旋量变换。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。