激光

In this paper, propagation and amplification of X-ray laser produced by irradiating the curvature target is described by using a simplified model.

介绍了在泵浦激光辐照弯曲靶情况下X射线激光的生成放大过程，依照London理论建立了简化的弯曲等离子体模型，并通过简化模型研究了X射线激光在弯曲等离子体中的传播和增益过程，给出了光线传播的简化解析方程。

B、 In the laserablation study of composite materials composed of 〓 and ozonized〓 precipitate as well as metal fullerides 〓, endohedralmetallofullerenes of the type 〓 were formed in the positive ion channel. c、 Inthe laser ablation study of rhodium containing metal fulleride 〓, two sequencesof metallofullerenes were formed in both the positive and negative ion channels, with〓 and 〓.respectively.

在激光烧蚀金属富勒烯盐的实验中发现形成的金属富勒烯类型依赖于金属元素的性质、含量及金属富勒烯的制备方法：a、在〓的实验中观察到取代型金属富勒烯〓和〓正负离子的产生。b、在对含La和Y的富勒烯复合样品〓以及金属富勒烯盐〓的激光烧蚀过程中观察到金属内嵌富勒烯正离子团簇〓的产生。c、在〓的激光烧蚀实验中观察到两个系列金属富勒烯〓和〓的形成，在负离子通道中〓在正离子通道2n=48-56。

Because the length of optical fiber delay lines has direct effects on the volume of laser warning system, the optical loss and the false alarm ratio, the optical fiber delay lines are permuted and combined based on the property of the laser pulse and the optimization theory.

针对光纤延迟线的长度对激光告警器的体积，光学损耗，虚警率等因素有着直接的影响，在此利用激光脉冲的相关特性，通过最优化理论对光纤延迟线进行排列组合，从而解算出光纤总长度的最小值，为激光测向告警器优化设计提供了重要的理论依据。

The surgery duration in radiofrequency group 2.54±0.93 was shorter than that in the laser group 4.65±1.47 (P.05); the halt frequencies in the radiofrequency group was 1.21±0.31 during surgery and the need of stanching was less than that in the laser group 2.87±1.47 (P.05); the surgeons' stree level in the radiofrequency group was 2.84±0.72 which was lower than that in the laser group 5.07±1.26 (P.05); all the above results showed statistical significante difference.

手术时间（每5分钟计数1射频组(2.54±0.93)小于激光组(4.65±1.47)(P.05)；手术中因出血需暂停手术次数射频组［(1.21±0.31)次］少于激光组(2.87±1.47)次1(P.05)；医师心理压力评分射频组［(2.84±0.72)分］小子激光组［(5.07±1.26)分］(P.05)，均有显著性差异。

At the same time, the characteristics of the microstructures of the laser welds and HAZ were analyzed.

对于不锈钢的激光焊接，发现在相同条件下，用YAG激光焊接，得到的焊缝熔深比用CO〓激光焊接时的大10％-30％，宽度值则小10％-20％。

By locking laser frequency to atomic absorption spectrum through current negative feedback and locking microwave frequency to electromagnetic induced transparency resonance peak through voltage negative feedback respectively, the locking of the clock frequency of this laboratorial desktop experimental CPT frequency standard is realized.

介绍了相干布居囚禁原子频标的小型、低功耗物理系统，并应用它开展实现了CPT原子频标的激光锁定、微波锁定方案的实验室研究。通过采用电流负反馈将激光频率锁定在原子对激光的吸收峰上，电压负反馈将微波频率锁定在电磁感应透明共振峰上，用该物理系统实现了闭环锁定的实验室桌面CPT频标实验系统。

A heat mode of laser penetrating of thick steel plates has been investigated and the relations between laser power and beam size as well as welding speed have been obtained through energy balance.

通过能量平衡原理研究了厚钢板激光深熔焊接的热源模型，得出了激光功率与光斑大小、焊接速度等的关系，并讨论了激光光束质量。

Objective To study the technique of using Nd:YAG laser in treating after-cataract in outpatients and to prevent complications.Methods According to the thickness of membrane to choose laser power.The methods of capsulotomy were crossed,horizontal,vertital,can-opening or circular along papillary margin.Results The result was satisfactory.

目的 探讨采用Nd：YAG激光行后囊膜切开术治疗后发性白内障的方法及其并发症的防治方法回顾分析我院门诊对74例98眼后发性白内障患者进行Nd：YAG激光后囊切开术，探讨根据膜的厚薄选择激光能量，分别采用&十&字切开（若后囊有张力者行张力线切开）、横形、纵形切开及环形或瞳孔缘开罐式切开方法。

This algorithm is used for the experimental research of feature extraction of airborne LIDAR point cloud.

在分析激光雷达点云空间分布特征的基础上，提出了基于斜率的激光点云平面拟合过滤算法，并利用该算法对机载激光雷达点云的特征提取进行了实验研究。

Relation equation between blackbody temperature and two color gray ratio of thermal radiation image was set up.

3进行激光熔池测温专用软件需求和可行性分析，描述了激光熔池热辐射图像的数据流程，采用模块化思想进行软件设计，基于数字图像处理技术，开发出一套激光再制造熔池测温专用软件，详细介绍了热辐射图像的数据采集、输入/输出、图像处理、温度计算模块及程序设计开发。4介绍了常用黑体辐射源的结构、加热控温方式和性能评价方式，对不同类型的黑体辐射源进行了详细描述，选择中国计量科学研究院的标准高温黑体辐射源进行温度标定，建立了热辐射图像比色值与温度之间的对应关系。

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