激光

Laser ; Endovenous laser treatment; Varicose veins ; Therapy

激光；静脉腔内激光术；静脉曲张；治疗

Several methods were used to study the pulse shortening of CuBr laser and dye laser pumped by it experimently and theoretically in this paper.

本论文主要从实验及理论上运用若干方法对CuBr激光脉冲压缩及其泵浦染料激光脉冲压缩方面作了详细的分析研究，实验上均获得了接近Fourier变换极限脉冲输出。

So, the study in this dissertation focuses on some key points in theuncertainty treatment of mobile robot localization as follows: Combined with the multiple proprioceptive and exteroceptive sensors ofmobile robot MORCS-1, aimed at the drift error of fiber optic gyro as theproprioceptive sensor, the neural network using genetic algorithm as optimaltool is proposed to accomplish the modeling and calibration for temperaturedrift of fiber optic gyro, which can reduce the drift error to the standard outputat constant temperature; and aimed at the noisy disturbance of ranging datafrom the exteroceptive sensor laser scanner, a dynamic adaptive filter isintroduced through the analysis of neighboring ranging data in time and spatialcorrelation to realize the real-time and dynamic filter, which can validly filter the noisy disturbance to meet the requirement of the accurately real-timeobstacle detection in mobile robot navigation.

总结全文，在移动机器人定位的不确定性处理研究中，提出了一些具有一定创新性的方法：结合自行研制的移动机器人MORCS-1系统的多种内外部定位传感器，针对内部本体感受传感器光纤陀螺仪的漂移误差，提出采用基于遗传算法优化的神经网络来对光纤陀螺仪的温漂建模及校准，能够将其温漂变化控制在恒温条件下标准测试输出附近；针对外部环境感知传感器激光雷达测距数据中包含的噪声干扰，考虑移动机器人导航中激光雷达测距数据的时空关联性，提出采用动态自适应滤波技术进行预处理，从而可以有效滤除噪声干扰满足导航中障碍实时精确检测的要求。

Objective According to the characteristic of light propagation on human tissues,the medical effect and cost as well as manipulative method of He-Ne laser extravascular irradiation on blood vessel were studied to replace the laser intravascular irradiation therapy hopefully.

目的 根据光在人体组织的传播特性，研究氦氖激光沿血管体表照射的治疗效果、操作方法以及治疗费用等。希望将此法取代氦氖激光血管内照射疗法。

RESULTS: When the ratio of laser power to facular diameter was 2.7 kW/3 mm, the powder feeding speed was 90 r/min and the moving speed of numerical control machine was 5 mm/s, better H (826.61 μm) and W (3504.61 μm) were obtained.

结果： 在激光功率与光斑直径之比为2.7 kW/3 mm，送粉器转速为90 r/min和数控机床的运动速度为5 mm/s等参数下，TiZr粉末激光立体成形时具有较好的H和W，分别为826.61 μm和3504.61 μm。

RESULTS: When the ratio of laser power to facular diameter was 2.7 kW/3 mm, the powder feeding speed was 90 r/min and the moving speed of numerical control machine was 5 mm/s, H (826.61 μm) and W (3504.61 μm) were obtained.

结果： 在激光功率与光斑直径之比为2.7 kW/3 mm，送粉器转速为90 r/min和数控机床的运动速度为5 mm/s等参数下，TiZr粉末激光立体成形时具有较好的H和W，分别为826.61 μm和3504.61 μm。

RESULTS摘要: When the ratio of laser power to facular diameter was 2.7 kW/3 mm, the powder feeding speed was 90 r/min and the moving speed of numerical control machine was 5 mm/s, better H (826.61 μm) and W (3504.61 μm) were obtained.

结果摘要：在激光功率和光斑直径之比为2.7 kW/3 mm，送粉器转速为90 r/min和数控机床的运动速度为5 mm/s等参数下，TiZr粉末激光立体成形时具有较好的H和W，分别为826.61 μm和3504.61 μm。

The microstructure of Ti Zr alloy formed under this suitable technologic parameter matching was analyzed by scanning electron microscope. RESULTS: When the ratio of laser power to facular diameter was 2.7 kW/3 mm, the powder feeding speed was 90 r/min and the moving speed of numerical control machine was 5 mm/s, better H (826.61 μm) and W (3504.61 μm) were obtained.

结果： 在激光功率与光斑直径之比为2.7 kW/3 mm，送粉器转速为90 r/min和数控机床的运动速度为5 mm/s等参数下，Ti Zr粉末激光立体成形时具有较好的H和W，分别为826.61 μm和3504.61 μm。

Application of the forcipressure to the CO_2 laser circumcision and Nd : YAG laser to the condyloma acuminatum was used.

因男性患者都有包皮过长的特点，采用了钳夹法CO＿2激光包皮环切术，Nd：YAG激光治疗尖锐湿疣，对治疗机理进行了讨论。

ABSTRACT One of the new laser crystals drawing much attention in recent years is the synthetic chromium-doped forsterite, for which Cr ions...

人工掺铬镁橄榄石晶体是近年来受到重视的一种激光晶体，它能使铬离子实现新波段的激光运转。

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