查询词典 magnetic band

On the basis of this,the influences of the external magnetic field on the properties of the quantized vertical spin waves as well as the spin wave energy band s are analyzed.

在此基础上重点讨论了垂直于膜面的外加磁场对自旋波能带结构的影响，结果表明，磁场对自旋波的能带结构有很大的影响，足够大的磁场可以使体模消失

There are may be different relationship between the optical polarization and V-band magnitude in the different samples, which may be caused by different magnetic in their synchrotron radiation field.

对不同的样本得到的偏振和光学V波段的星等之间的相关关系不同，这可能由于他们的同步辐射区域的磁场的不同引起的。

In this paper, a novel tunable Electromagnetic Band-Gap which is controllable by changing applied dc magnetic field is presented.

本文提出了一种新型的可利用改变外加偏置磁场对其成品进行调节的电磁带隙。

It shows that it is possible to increase the start oscillation length by tailoring magnetic field's amplitude and its period without changing the synchronous condition of the fundamental wave; in the meantime, when there are two or more azimuthally asymmetric space harmonics in the high power broad-band helix TWTtraveling wave tu...

与此同时，对起振长度、初始非同步速度参量随皮尔斯增益参量、空间电荷参量、损耗参量等的变化，以及在超宽带行波管中当存在两个或多个角向非对称空间谐波时，起振长度、初始非同步速度参量随周期永久聚焦磁场的变化进行了研究。优化设计聚焦磁场、电子注和螺旋线慢波系统的参量可以对螺旋线行波管的稳定性分析提供必要的依据。

It shows that it is possible to increase the start oscillation length by tailoring magnetic field's amplitude and its period without changing the synchronous condition of the fundamental wave;in the meantime, when there are two or more azimuthally asymmetric space harmonics in the high power broad-band helix TWT, the influences of the Pierce's gain parameter, space charge parameter, and loss parameter on the start oscillation length and real starting asynchronous velocity parameter are also analyzed.

研究结果表明：改变聚焦磁场的幅值或周期来增加起振长度是可能的，而且不会改变基波的互作用条件。与此同时，对起振长度、初始非同步速度参量随皮尔斯增益参量、空间电荷参量、损耗参量等的变化，以及在超宽带行波管中当存在两个或多个角向非对称空间谐波时，起振长度、初始非同步速度参量随周期永久聚焦磁场的变化进行了研究。

Since it has many special mechanical,optical, electrical, magnetic, calorifics and chemical properties which differ from thecorresponding bulk materials due to its size effect, surface effect and quantum effect,as a wide band gap semiconductor material with large exiton binding energy of 60meV at room temperature, it is attractive for many new applications in industry andhigh-tech fields.

由于ZnO是一种直接带隙的半导体材料，室温下能隙宽度为3.37 eV，激子束缚能高达60 meV，具有优良的物理和化学性质，其显著的表面效应、量子尺寸效应和宏观量子隧道效应，是目前光电子研究领域的热点。

The unusually huge positive MR for normal fields were analyzed quantitatively with a two-band carriers galvanomagnetic effect on the ungapped residual Fermi surfaces, in which the concentration of the carriers is modified by an applied magnetic field.

分析表明：三种样品在H//c时巨大的磁阻行为不能用单一的磁场改善费米面套叠的模型或半经典的电磁效应模型来解释。我们尝试提出了综合两带电磁效应和磁场增强Perierls能隙效应的模型。

Transverse vibration of axially moving strings is involved in many engineering devices such as power transmission belts, magnetic tapes, paper tapes, thread lines,band saws, and aerial cable tramways.

多种工程系统如动力传送带、磁带、纸带、纺织纤维、带锯、空中缆车索道等均涉及轴向运动弦线的纵向振动。

Our company mainly produces and sells: Semi-continuous tri-chambers magnetic field vacuum heat-treatment furnace production line, large-size pit gas carburizing furnaces, atmosphere protecting combined furnace groups, vertical aluminum alloy quenching furnaces, stepping box resistance heating furnace, band material finishing continuous heat treatment furnaces, pre-pumped vacuum furnace, High-precision box tempering furnace, etc.

公司主要生产、销售：半连续三室磁场真空热处理炉生产线、大型井式气体渗碳炉、气氛保护联合炉组、竖式铝合金淬火炉、步进式箱式电阻加热炉、带材光亮连续热处理炉、真空预抽炉、高精度箱式回火炉等。

The electronic structures of cluster Fe8 with D6h symmetry and Fe15 with Oh sysmmetry have been studied by MS-X method..The results show that(1 the exchange splittings of the d-band and the magnetic moments of the Fe-atoms are different in the two clusters;(2)the change distribution in both clusters is not uniform,showing that the electrons are transferred from peripheral atoms to inner atoms,and the spin-directionof the electrons transferred is in accordance with the symmetric characteristics...

用MS-Xα方法研究了Fe8原子簇（具有D6h对称）和Fe15原子簇的电子结构，结果表明：（1）两种原子簇中的Fe原子磁矩及其d能带中的交换劈裂性质互不相同；（2）两类原子簇中的电荷分布不是均匀的，电荷倾向于从外围原子向内部原子上转移，并且被转移电子的自旋方向与原子簇的对称性质密切相关。

Since historical times,England ,where the early inhabitants were Celts, has been conquered three times .

从有历史以来，英国，在此地早期居住的是凯尔特人，已经被征服了三次。

Bluetooth OBEX File Transfer Enables the sending and receiving of files on your phone via Bluetooth.

蓝牙OBEX文件移动允许经过蓝牙传送和接受文件。。。。