free electron lasers

Estimation of the specific heat and the conductivity of free electron by Pauli exclusion principle;

用泡利原理估算自由电子的比热和电导率

This paper, based on the Fermi gas model, studies the energy of free electron gas in metal,discusses the highest energy, the average energy and the energy level density of free electrongas.

本文根据费米气体模型理论,研究金属中自由电子气的能量,讨论电子的最高能量、平均能量和电子气的能级密度。

The equation describing interaction of photo and free electron in metals is a process of quantum.

方程所描写的是光子与金属中的自由电子相互作用的一个量子过程,光子与电子的作用,不可能把能量全部交给电子,只有受金属束缚的电子,才可以全部吸收一个光子的能量。

The authors previous work on free electron maser with modified axisymmetrical quasioptical cavity of oblique rotation (MAQCOR) is supplemented.

对作者先前在改型斜旋转轴对称准光腔（ＭＡＱＣＯＲ）自由电子微波激射器方面的工作作一补充，说明改型斜旋转轴对称准光腔回旋微波激射器还有一个重要的优点，即可以通过适当选择旋转角把电子注热发散对注－波互作用的不利影响降至最

The free electron gas is a kind of representative quantum Fermi gas.

金属的自由电子气是一种典型的量子费米气体。

In present paper, the free photoelectron time-resolved spectra are obtained by microwave absorption and dielectric spectrum detection technology for sensitized, desensitized, and sensitized plus desensitized AgCl emulsion.

本文利用微波吸收相敏检测技术对纯增感,纯减感,和增感加减感之后的立方体AgCl乳剂进行了检测,获得了在光谱增感波段的自由光电子时间分辨谱,结果表明:对于增感加减感的乳剂,在光谱增感波段增感染料吸收光产生自由光电子之后,减感染料能够使得自由光电子数目变少,并且光电子的衰减变快,而对于纯减感的乳剂,光谱增感波段的自由光电子数目和衰减变化均不明显。

The free photoelectron decay curves of cubic silver chloride emulsion with different dye adsorption conditions are measured by microwave absorption and dielectric spectrum detection technology.

利用微波吸收介电谱检测技术,测量了不同染料吸附条件下立方体氯化银乳剂的自由光电子衰减曲线,发现增感乳剂比未增感乳剂的自由光电子衰减变快,这是由于染料吸附增加了氯化银中的Agi+。

free electron molecular orbital model

自由电子分子轨道模型

Compton type free-electron laser

康普顿自由电子激光器

E-beam-pumped free-electron laser

电子束抽运自由电子激光器

In contrast, an electrically conductive substance has a great number of free electrons.

相反，导电物质有大量的自由电子。

As does the CRT, FED generates and shoots free electrons across a tube.

FED像CRT那样，也产生并把自由电子射过电子管。

THE SPONTANEOUS EMISSION SPECTRUM OF A NOVEL WIGGLER FREE ELECTRON LASER

一种新型摆动器自由电子激光的自发辐射谱

Some electrons, called free electrons, are free to move from atom to atom within a conductor .

有些电子，被称为自由电子，能在导体内自由地从一个原子游离到另一个原子。

A few percent of the CO2 molecules in the air manage to find such electrons.

空气中的一部分co2分子会吸引那些自由电子。

The free electron gas is a kind of representative quantum Fermi gas.

金属的自由电子气是一种典型的量子费米气体.

Study on Irradiation Effects of Quantum Well Material Caused by Free Electron Laser;

自由电子激光对量子阱材料的辐照效应研究

The electrons that participate in the conduction process are termed free electrons, which have energies greater than the Fermi energy.

参与导电过程的电子，我们称之为自由电子，其能量高于费米能级。

The effect of divergence of the incident electron beam on the gain of FEL is analysed.

分析了入射电子束的发散性对自由电子激光器增益的影响。

Depending upon certain conditions there may ornot may be f ree elect rons in semi- conductors.

半导体是否存在着自由电子,这取决于某些条件。

This is in addition to general absorption characteristic of the free electrons.

这是附加在自由电子的普通吸收之上的。

Electron-Atom Free-Free Transition in the Presence of a Bichromatic Laser Field

双色激光场中电子对原子的自由—自由跃迁

Because of the indistinguishability of the electrons, there is complete electronic democracy.

因为电子的不可分辨性，电子有完全的自由。

The behavior of these unbound electrons is critical.

这些自由的电子作用极为重要。

China-Asean Free Trade Area Electronic Commerce Framework;

中国—东盟自由贸易区电子商务框架