光发射

The voltage-current relationship has been been modified and re-deduced. The microscopic characteristics of corona discharge are studied using optical emission spectrometry. Corona discharge is used to remove NO_x coupling with TiO_2 photocatalyzer and a kind of MnO_x photocatalyzer, and the removal mechanism is analysised preliminarily.

本论文对针-板式直流电晕放电电极间距进行优化，修正推导伏安关系式，并使用光学发射光谱进行电晕放电微观特性研究；将电晕放电与TiO_2光催化剂以及一种MnO_x催化剂耦合协同作用去除NO_x，并初步分析了去除机理。

It can be concluded from the time course of emission components during the photoinhibition that light-induced destruction of pigments is a multi-step reaction which confirms our previous reports.

从发射光谱组分的光破坏时间进程推断强光破坏过程导致的色素破坏是多步反应，验证我们小组原先报导的PSⅡ-RC的多步反应特性。

Herein, a series of compounds, BP-C〓-NBD (n=2, 3, 4, 5, 6, 8, 10), was synthesized. Nanosecond flash photolysis, phosphorescence emission and lifetime, as well as photoisomerization reaction of norbornadiene were used to understand the intramolecular triplet energy transfer in detail.

我们设计、合成了以多亚甲基连接的二苯酮与降冰片二烯（BP-C〓-NBD，n=2，3，4，5，6，8，10）系列化合物，利用纳秒时间分辨技术、低温磷光发射、磷光寿命以及光敏异构化的方法，对其分子内三重态能量传递过程进行了详细地研究。

The LiF thermoluminescent detector arrays were used to measure the spatial distribution in 4π space of ejected hot electron and hard x-ray emission from ultrashort laser-solid target interaction for the first time.

首次使用LiF：热释光探测器阵列进行了超短脉冲激光与固体靶相互作用中发射的超热电子和硬X射线的全空间（4π立体角）分布测量。

In the results of the optical properties, these molecular monomers have different HOMO and LUMO energy gap such that there are dual-emission and energy transfer mechanism in solution fluorescence spectrum. In the study of the electrochemical properties, various of triphenylamine derivaties have different oxygen binding site and they make elecropolymerization happen or not. In the applications of the hole-transport materials, the performance of compound 21 is better than other compounds. The electropolymerized-film may have residual cation molecules so they can increase the concentration of hole-transport. Due to this reason , compound 21 is suitable to become hole-transport materials.

在光学研究方面，由於目标化合物内单体的HOMO及LUMO能阶差异，使得在溶液萤光放射上有双发射及能量转移的情形发生；在电化学研究方面，不同的三苯胺衍生物由於氧基的位置不同，使得取代基在间位的化合物有不错的电聚合效果；而元件的应用上，具有咔唑基团的化合物21由於在形成电聚薄膜后，可能有残余的阳离子态化合物，使得电聚薄膜内的电洞数浓度较高，因此与其他元件相比之下，有较低的启动电压和不错的元件效率。

Polyphenylene vinylene is an important kind of electroluminescent polymers. It has many advantages over others, such as high luminescence, good stability in air and fine mechanical strength, but it remains the poor processability and gives off blue-light with much difficulty.

聚苯撑乙烯材料具有发光亮度高、在空气中稳定性好和力学强度高等优点，但也存在加工性差和其器件不易发射蓝光等问题。

All at once, as with a sudden smile of heaven, forth burst the sunshine, pouring a very flood into the obscure forest, gladdening each green leaf, transmuting the yellow fallen ones to gold, and gleaming down the gray trunks of the solemn trees.

而在一刹那之间，上天像是忽然微笑了，发射出阳光来，向着朦胧的森林间，灌注一道洪光，每一片绿叶都欣欣向荣，枯黄的落叶变成金黄色，萧瑟老树的灰色树干也闪着亮光。

Methods According to the document of ISO/TC172/GW1 N80 about the test principle and the experimental demands of times-diffraction-imit factor M^2, beam diameters in different z places along the light direction were measured using LBA-300PC laser beam quality analyzing meter made in Spiricon Corporation of America. Hyperbolas were fitted utilizing the measured data.

根据ISO/TC172/SC9/WG1 N80文件对M^2因子的测量原理及要求，用美国Spiricon公司生产的LBA-300PC激光束分析仪，沿光传播方向在不同z位置，测出光束宽度，由测量数据进行双曲线拟合，确定束腰直径和远场发射角，计算M^2因子。

The mirror is applied in laser beam expand system, it can not only control the sending and incepting directions of the high energy laser beam accurately, and adjust the oblique high energy laser beam, but also can improve the beam quality by minishing the mirror thermal distortion.

本文介绍了一种应用于高能激光系统中的新型二维快速控制水冷反射镜，既可实现精确控制激光发射和接收光轴的方向，对光束整体倾斜方向进行校正，又可实现减小镜面热畸变提高光束质量的功能。

Second,we investigated the temporal and spectral properties of the THz emission of a novel semi-insulating GaAs interdigitated photoconductive antenna with different excited carrier densities,in a temperature range from 4.2K to 270K.

其次，我们研究了一种全新的微结构半绝缘GaAs光导天线THz辐射的时域和频域特性，特别是其在从4K到270K的温度变化范围内的THz发射特性。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。