查询词典 clusters

The electronic structure and magnetism of clusters Nin(n=2-6) have been studied by spin-polarized MS-Xα method. The results show that the effect of the cluster symmetry on its atomic magnetic moment and electronic density of states is very notable.

采用MS-Xα方法研究了Nin (n=2—6)原子簇的电子结构和原子磁矩，发现团簇的几何对称性对原子磁矩和电子态密度的分布有重要影响。

If I change to atonal clusters...

如果我改换个音色

Another approach in enhancing the light extraction efficiency of AlGaInP LED was accomplished using a surface roughening process. In this process, the Au(170 nm)/AuBe(260 nm)/Au(170 nm) ohmic contact layers were first deposited on the GaP window layer. After the alloy annealing process (480°C for 10 min), the Be atoms will diffuse into the GaP top layer and form non-uniform clusters. The LED samples were then immersed into a mixture 3H3PO4:1H2O2:1H2O solution for 6 min, resulting in a rough GaP surface. The luminous intensity of the AlGaInP LED can increase from 42 to 50 mcd, that is, an 18% enhancement can be achieved via the present non-photolithography surface roughening process.Keywords: LED, AlGaInP, Cu substrate, Reflector, Surface roughening

在实验的第二部份是开发磷化镓窗口层之粗化制程，我们是藉由正面金/铍欧姆接触电极之熔合制程，使铍扩散至磷化镓层，同时利用铍渗入磷化镓造成之特殊组成，可形成不均匀之蚀刻阻挡，而在磷化镓表面形成粗化，我们发现480℃、10分钟的熔合制程，加上浸泡磷化镓蚀刻溶液6分钟，可将四元发光二极体之发光亮度由42 mcd 提升到50 mcd，经由此无光罩粗化制程可将亮度提升18%，明显提升磷化铝铟镓发光二极体之外部量子效率。

A deciduous Asian treeMelia azedarach,widely cultivated and naturalized in the southern United States and having bipinnately compound leaves,clusters of purplish flowers,and yellow,globose,poisonous fruits.

楝产于亚洲的落叶乔木，，有二回羽养复叶、紫色花簇以及黄色球形、有毒的果实，在美国南部被广泛引种栽培

Basing on kinds of theories and the practice of industrial clusters,this article takes analysis and researc...

在国内外产业集群发展的理论与实践的基础上，对湖北省产业集群发展的动力机制进行了分析与探讨。

I wanted to wear my bathrobe and eat peanut clusters all day.

我想整天穿着浴袍吃花生

Small evergreen mat-forming shrub of southern Europe and Asia Minor having stiff stems and terminal clusters of small bell-shaped flowers.

小的常青的垫子形状的灌木，分布在欧洲南部和小亚细亚，有硬的茎和尖端丛生的小铃铛状的花。

Therefore, the Bergman clusters can be regarded as basic units to describe the structural characteristic of three phases.

说明这三种相的稳定性可以通过其中的Bergman团簇来反映。

European annual with clusters of greenish flowers followed by red pulpy berrylike fruit; naturalized North America.

欧洲的一年生植物，开绿花，果实红色，类似于草莓；在北美归化。

Spiny branching deciduous shrub of southwestern United States having clusters of insignificant yellow-white flowers appearing before leaves followed by attractive black berrylike fruits.

美国西南部多刺的发枝的每年落叶的灌木，有不明显的黄白色的花丛，出现在叶子前面，有吸引人的黑色的象浆果似的果实。

The work of this paper is as follows: 1. Looking back the progressing history of the linear motor, introducing the features of the elevator driven by linear induction motor, radicating the topic of this paper "the digital frequency variable control of the elevator bi-side direct driven by linear induction motor". The research of this paper covers the conventional VVVF control, space vector based VVVF control, vector control and DTC.

本文主要开展了以下几个方面的工作： 1 回顾了直线电机发展历史，电机的驱动技术演变，特别是针对直线电机的驱动，简要介绍了直线感应电机驱动电梯的优点和不同结构类型，对传统的v／f控制，基于空间矢量法的v／f控制，矢量控制，和基于电压空间矢量的直接转矩控制进行了比较，确立了本课题的研究主题：直线感应电机双边直推式驱动电梯的全数字变频控制。

The article combines with the treatment of a superficial civil air defense work to introduce how the grouting method to improve the performance of the backfill soil.

文章从治理漂浮人防工事的角度提出了注浆技术在改善回填土性质方面的应用，并详细阐述了注浆技术的施工流程。