激光材料

In this article,the laser speckle photography has been used for inspecting the thermal displacements,which are generated in the weldments made from different metal materials in different temperature intervals.

本文用激光散斑照相法对不同金属材料焊接件在不同温度区间产生的热位移进行了实测，得到焊接部位的热位移随温度的升高而增大，其热应变及热应力亦随温度的升高而增大，且与理论中的分析相符。

A varifocal f-theta lens was designed for Nd:YAG laser making scan focusing system, so that it apply to differ making area but change a lens necessarily. the system consists of four lens ,made by glass BK7, SF18 and SF11. The total length of the system is 122.96mm, working at 1064m.

为Nd：YAG激光打标机设计了变焦距f-theta镜扫描系统，以使它适用于不同的打标面积而不必更换镜头，系统由四片透镜组成，材料分别为BK7，SF18和SF11，系统总长度为122.96mm，工作波长1064nm。

In order to overcome the difficulties faced on analytically deriving the equation for describing the samll angle light scattering patterns from anisotropic objects with arbitrarily director configurations, a Fast Fourior Transformation algorithm for the calculation of SALS patterns from the anisotropic objects immersed in an isotropic matrix has been developed.

用快速傅里叶变换计算方法( Fast Fourier Transformation，FFT)直接获得高分子材料中介观有序结构小角激光光散射图案，从而对实验获得的球晶和液晶液滴的 SALS图案进行结构预测。

Based on the objective lens and voice coil motor of the current DVD pickup head,according to photobleaching three-dimensional (3D) optical information storage's theory of two-photon absorption,the Ti∶sapphire femtosecond pulse laser was used as written optical beam and reading optical beam of two-photon three-dimensional optical storage voice coil motor was carried through multiplayer choice, and the storage and readout experimental study of binary format code with two-photon photobleaching in the new photobleaching material consisting of stilbene derivant was conducted.

基于现有的DVD光头物镜与音圈电机，根据光致漂白的双光子吸收三维光信息存储原理，以钛蓝宝石飞秒脉冲激光进行双光子光信息写入和读出，利用音圈电机进行选层，在新型光致漂白材料二苯乙烯衍生物中进行光致漂白二进制编码信息的存储和读出实验研究；实现了三层光信息存储，信息点间距和信息层间距分别为4 μm和15 μm；用Matlab软件读出信息的信号强度并对其进行了识别，识别结果与写入的二进制编码信息完全一致。

Methods:(1) bFGF was loaded with PLGA, PELA and gelatin microspheres. The pharmac characteristics of particle size distribution, loading efficiency, entrapment efficiency, bFGF release kinetics were evaluated with scanning electronic microscope, MTT and ELISA respectively. The prescription with the best pharmac characteristics and the highest bioactivity of bFGF was chosen for the next step.

（1）制备PLGA，PELA和明胶微球，通过扫描电镜和激光粒度分布仪测定其粒径分布；ELISA法测定微球溶出度，包封率，bFGF释出动力学；MTT法测定微球释出的bFGF的生物活性，筛选出一种具有较好药剂学性质和较高bFGF生物活性的微球载体材料。

Application of erfc in fixation process of laser printer and numerical solution;2. This Paper outlines the fundamental chemical reactions of the fixation process of the silver halides emulsion layer of photographic materials and the composition of rapid access fixer of laser phototypesetting film,the function and behavior of its constituents,and also directions for its proper use,e.

本文阐述了感光材料卤化银乳剂层定影过程的基本化学反应和适用于激光照排胶片的高温冲洗套药中的定影药液的组成，其作用和配比以及使用时的注意事项，如：胶片定影容量与定影液的使用寿命、定影的浓度、定影温度、定影时间、药液的搅拌与循环、定影液的消耗与补充、水洗与影像质量、定影液的保存和定影过程的正确操作等等。

An intense blue luminescence centered at wavelength of 450 nm with full width at half-maximum of 75 nm was observed in the SnO2 nanoblades, which is different from the yellow-red light emission observed in SnO2 nanostructures prepared by other methods.

在光激光谱的检测结果，奈米叶片的PL波形中心为450nm，而半高宽为75nm，这结果和前人论文所做的二氧化锡材料截然不同。

The authors have prepared vanadium oxide films by plasma-enhanced chemical vapor depostion and pulsed laser deposition.

鉴于氧化钒是应用于锂充电电池的最有希望的电极材料之一，采用等离子体增强化学气相沉积法和激光溅射沉积法，制备了不同的氧化钒薄膜，并研究了它们的电化学性质。

The simulation was conducted by using steel 25 powder. Results show that great temperature gradients exist in the front of laser spot, and phase transformation temperature of powder around laser spot is higher than the powder's melting point.

以25号钢粉末为烧结材料进行了数值模拟，模拟结果表明：激光烧结过程中，在光斑中心的前端存在着极大的温度梯度；光斑中心的温度高于金属粉末的熔点，烧结过程中存在液相。

Then the author respectively introduces the structure of the switch,dielectric,status quo of research,insulation,electrode materials and mechanism of laser-triggered surface flashover switch developed in recent years.

介绍了沿面闪络开关的结构、研究现状、绝缘介质和电极材料，并介绍了近年来出现的激光沿面闪络开关的可能机理。

For a big chunk of credit-card losses; the number of filings (and thus charge-off rates) would be rising again, whether

年美国个人破产法的一个改动使得破产登记急速下降，而后引起了信用卡大规模的亏损。

Eph. 4:23 And that you be renewed in the spirit of your mind

弗四23 而在你们心思的灵里得以更新