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The applications of the phthalocyanines in photodynamics therapy, light bleacher, catalysts, disc, nonliner optical proper-ity, electroluminace, gas sensor, electrochromic was reported in detail.

简要介绍了酞菁化合物在光动力学疗法、光漂白剂、催化剂、光电记录、非线性光学、电致发光、气体传感器、电致变色、有机超晶格等方面的应用。

The structure, electronic properties and optical properties of zinc blende CdS and

采用基于密度泛函理论的第一性原理赝势平面波方法，对闪锌矿结构 CdS 和 CdS：M

The electronic and optical properties of blende phase ZnS systems doped with 3d transition metal ions were studied by the first-principles method based on density functional theory. The density of state, band structure, and absorption coefficient were calculated.

采用基于密度泛函理论的第一性原理方法对掺杂不同3d过渡金属元素的闪锌矿型ZnS系统进行了研究。

Band structure, density of states, and optical properties of Zinc blende CdTe have been investigated using the plane-wave ultrasoft pseudopotential technique based on density functional theory.

采用基于密度泛函理论框架下广义梯度近似平面波超软赝势法，计算了闪锌矿型CdTe的能带结构、态密度和光学性质。

Zinc blende CdSe ; electronic structure ; optical properties ; first-principles

闪锌矿型CdSe ；电子结构；光学性质；第一性原理

Electronic structure and optical properties of zinc blende CdSe have been investigated using the plane waves ultrasoft pseudopotential technique based on the density functional theory.

采用基于密度泛函理论框架下广义梯度近似平面波超软赝势法，计算了闪锌矿型CdSe的电子结构和光学性质。

This paper focus on the study of the probability based extraction method which includingword, text line and text block extraction in our Optical Character Recognition System. Inpre-process of OCR, several methods of the two problems:image binarisation are alsodiscussed, thus corresponding methods are finally selected and determined.

本文主要对字符识别系统中基于概率的提取方法进行了研究，其中包括对文本行的提取、块的提取和词的提取，并对字符识别预处理中的两个问题：图象二值化和倾斜字体校正的几个方法的优劣进行了讨论和试验模拟，并最终为我们的字符识别系统确定了相应的方法。

As their sizes are smaller than the bulk exciton Bohr radius, theyexhibit many unique optical, electrical and chemical properties, giving rise tonumerous potential applications in physics, chemistry, biology and medicine.

由于粒子的尺寸比体相材料激子的波恩半径还小，因此表现出非常独特的光、电和化学性质，在物理，化学，生物，医药等许多方面有着巨大的应用价值。

Quantum dots are a kind of semiconductor nanopaticles with the radius equal to or less than the exciton Bohr radius. They have tremendous potential in the field of biology and medicine because of their unique and tunable optical properties (broad excitation spectrum, narrow emission spectrum, precise tunability of their emission peak and negligible bleaching, etc) as new fluoresent probes.

量子点是半径小于或接近于激子玻尔半径的一类半导体纳米晶，作为一种新型的荧光标记物，其独特和可调谐的光学特性（宽的激发光谱、窄的发射光谱、可精确调谐的发射波长以及可忽略的光漂白等）使其在生物和医学方面显示出巨大的应用潜力。

The small band gap and the large Bohr radius of lead chalcogenides enable unique optical, electrical, and chemical properties, presenting this family of materials as a good candidate for potential applications in solar cells, thermoelectric devices, telecommunication, field effect transistors and biological imaging.

IV-VI族铅的硫属化合物半导体纳米材料，由于他们较小的能带间隙和较大的激子波尔半径，这类材料在太阳能电池，热电器件，电子通信，场效应晶体管，生物成像技术上有很广泛的潜在应用价值。

We are in a good position to meet your requirements.

我们完全可以满足你方的需求。

We are all pervade d with a sense of disaster.

我们普遍有大祸降临的感觉。