分析镜

A simultaneous dual-wavelength continuous wave, quasi-cw or linearly polarized wave diode-end-pumped Nd:YAG laser operating at 1319nm and 1338nm is demonstrated. To the best of our knowledge, our experimental results achieve the highest level in the domestic domain. The simultaneous dual-wavelength laser provides an experimental basis for generating highly coherent THz wave radiation of 3.23THz by nonlinear optical difference frequency method.2. A diode-end-pumped Nd:YAG crystal, type-I critical phase matching LBO crystal intra-cavity frequency doubled, simultaneous multi-wavelength red laser at 659.5nm, 664nm and 669nm is firstly realized.

本论文主要围绕用于差频产生THz辐射源的多波长激光器及THz光子晶体的带隙特性分析而展开，论文的主要内容包括：一、从LD端面泵浦固体激光器的激光阈值公式出发，理论计算了腔镜对于两个波长的透过率关系，实现了LD端面泵浦Nd：YAG 1319nm/1338nm双波长激光连续、准连续及线偏振稳定输出。

Mechanisms of heat affected zone liquation and liquation cracking in GH150 alloy were investigated by using varestraint test and hot ductility test in conjunction with the differential thermal analysis and optical, scanning electron microsopy. On heating,γ/C liquation take places in the HAZ above 1250℃. When the temperature reaches 1353- 1375℃, a large amount of liquid particles due to initial melting can be observed within the grains near the fusion boundary. On cooling,γ/C eutectic and γ/ Laves phase eutectic take place at 1273 and 1200℃ respectively.

采用可变拘束试验、热塑性试验、差热分析、光镜与扫描电镜观察，研究了GH150合金焊接热影响区液化及液化裂纹形成机制加热过程中温度高于1250℃的热影响区由于γ／C共晶产生液化，在温度达到1353℃（固相约至1375℃的近维区，晶内出现大量液化点冷却过程中温度在1273和1200℃时形成γ／C共晶和γ／Laves相共晶。

Methods The clinical data of 127 cases with upper urinary lithiasis who underwent MPCNL were analyzed retrospectively.

回顾性分析经皮肾微造瘘输尿管镜碎石术127例的临床资料。

Methods:The data of 16 cases of gut presimmon concretion causing ileus were retrospectively analyzed.All cases were treated by laparoscopic lithotomy after ultrasonic diagnois and orientation.

回顾分析16例胃肠柿石梗阻患者，经超声检查诊断并定位，在保守治疗无效后，采取腹腔镜胃肠切开取石术进行治疗。

All cases were treated by laparoscopic lithotomy after ultrasonic diagnois and orientation.Results:Representative image of gut presimmon concretion and ileus was in all cases.

回顾分析16例胃肠柿石梗阻患者，经超声检查诊断并定位，在保守治疗无效后，采取腹腔镜胃肠切开取石术进行治疗。

Objective To evaluate the effect of ureteroscope pneumatic lithotrity on treatment of ureteral calculi.

目的探讨输尿管镜气压弹道碎石治疗输尿管结石的效果。方法回顾性分析156例165侧输尿管结石行URSL的临床资料。

Many methods can be used to restore formation denudation thickness , such as stratigraphic correlation, deposition velocity, well log, compaction curve, vitrinite reflectance, sporopollen and wave analysis method, etc.

地层剥蚀厚度恢复的方法有很多种，例如地层对比法、沉积速率法、测井曲线法、压实曲线法、镜质体反射率法、孢粉法及波动分析法等。

WhatIF -- an Intermediate Frequency planning tool for RF system architects;* Spectrasys -- the only continuous-spectrum RF system simulator with root-cause analysis; and* Synthesis -- eight design assistants that implement manufacturable circuit-level designs, such as precise image-reject filters for RF boards.

ADS 2006A提供的新功能包括：WhatIF──RF系统架构设计用的IF规划工具；Spectrasys──具有根本原因分析能力的连续频谱RF系统仿真器；以及Synthesis──含八套设计助理功能，可以实做出易于生产的电路层级设计，例如RF电路板用的精确型镜像抑制(image-reject)滤波器。

The application on spectroscopic analysis with spectroscope in the determination of matrix and alloy element in cobalt-based alloy was investigated.

研究了看谱镜在钴基合金基体鉴别及成分元素分析中的应用，并摄制了相应的彩色图谱。

The mechanical oscillation of the fast steering mirror in adaptive optics system and its effect on control stability are discussed in this paper.

分析了自适应光学系统中高速倾斜反射镜的机械谐振现象及其对控制稳定性和控制带宽的影响。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。