查询词典 CW

This technique made full use of the functions of DMA Chaining and hardware interrupts of DSP,realized the synchronousness successfully between receiving and processing of the data,Then it restored the CW signal successfully by structuring a cancelling- chopper -sequence.

该技术充分利用了DSP提供的链式DMA和硬件中断等基本技术，成功地实现了数据接收与处理的同步，进而通过构造去斩波序列成功将连续波信号还原，经过量程判断之后，准确地计算出连续波信号采样数据的平均值。

The chamber structure made of metal and the test fixture are designed for grounding and thermal transmission under the CW operating condition.

采用金属腔体和测试夹具，保证在连续波下具有良好的接地和散热性能。

So, a single-op, World, low power, 12-hours, CW, unassisted would show

所以，单运，世界，低功耗，12小时，连续，硬朗将显示

A CW carrier signal, generated by Agilent Signal Generator, is transmitted to the subject, which reflects the modulated waves to the receiver antenna. The Agilent Spectrum Analyzer, with an under-conversion module inside, demodulates the received signal to 70MHz IF signal, which is then sampled by a ADC module in Agilent Vector Signal Analyzer. Digital quadrature demodulation is used to convert IF signal to baseband. We could finally get the respiration and heartbeat signal by further analyzing the baseband signal.

该系统由信号发射器产生载波，通过天线发射到被测物体；频谱分析仪内置的下变频模块将由物体反射回来的信号下变频到70MHz中频；中频信号经矢量信号分析仪采样，然后经过数字正交解调变频到基带信号；对基带信号进行滤波、FFT等进一步的数字信号处理后即可获得探测的心跳和呼吸信号。

CW Canadian Voyageur Airlines Ltd.

加拿大旅行者航空公司

In this dissertation, InGaAs/InGaAsP/InP MQW microdisk laser and its characterization were presented. Some conclusions are as following: the characteristics of lasing threshold was discussed by using rate equation. The dependent relations between threshold and cavity volume, spontaneous emission coupling efficiency β were investigated. The whispering gallery mode and spontaneous emission in a microdisk geometry were then studied. Almost all spontaneous emission was coupled into the lowest order TE mode when the normalized thickness of photonics well was between 0.15 and 0.5. The design principle and device process of InGaAs/InGaAsP/InP MQW microdisk laser were presented. The microdisk lasers with the diameter of 8μm, 4. 5μm and 2μm were succesfully fabricated by using etching techniques. The pulse lasing thresholds for the microdisk with the diameter of 8μm and 4. 5μm were 170μW and 15μW, a record results compared with the published in the literature. The cw lasing threshold for a 2-μm-diameter microdisk was only a few μW. We haven't found similar report up to now. To solve the problem of directional output in a microdisk laser, the power coupling efficiency in a double disk geometry was investigated with the theory of waveguide mode couple. A new structure of electrically pumped microdisk laser with output waveguide was designed, making a foundation for the practical use of microdisk laser.

本文主要研究InGaAs/InGaAsP/InP多量子阱半导体碟型激光器的研制和特性表征，并取得如下结果：利用速率方程理论讨论了激光器激射阈值的特性，分析了阈值与腔体积和自发发射耦合系数β之间的关系；讨论了微碟光子阱结构中的自发发射特性和微碟中WGM模式特性；光子阱结构在其归一化厚度在0.15-0.5之间时，几乎全部自发发射进入到最低阶TE模式中；研究了InGaAs/InGaAsP/InP多量子阱微碟激光器的结构设计原理和器件的制备工艺；利用刻蚀方法成功制备出直径分别为8μm、4.5μm、2μm的碟型微腔激光器；直径8μm和4.5μm的微碟脉冲光泵浦激射阈值分别为170μW、15μW，是目前所见文献报导中比较低的；直径2μm的微碟连续光泵浦激射阈值仅几μW，目前尚未见到达到类似结果的研究报导；为解决微碟激光器激射光定向引出的问题，通过波导耦合模理论分析了双层碟之间功率耦合效率；据此设计了新型带耦合输出波导的电泵浦微腔激光器，为进一步研制可实用的电泵浦微腔激光器打下基础。

In ytterbium borate glass, pumped by 1 W, 940 nm Ti∶sapphire laser 8 mW quasi-cw laser output of 8 mW was obtained.

用波长为976 nm，6 W的LD抽运Yb：磷酸盐玻璃获得了62 mW的连续激光输出，其斜率效率为4.4%。

Kesslak JP,Nalcioglu O,Cotman CW,et al.Quantification of magnetic resonance scans for hippocampal and parahippocampal atrophy in Alzheimer's diseas e.

在控制杏仁核体积、年龄、性别和文化程度等因素后，所做的偏相关分析也显示：海马结构体积与MMSE、WMS、ADS和ADL无显著相关(r值分别为-0.035，-0.191，-0.07，-0.317，P值均＞0.05)。

Electrooptical Q switching technology is applied to the Nd:YAG laser pumped by a CW Kr lamp.

电光调Q技术被应用于连续氪灯抽运的Nd：YAG激光器件。

The cells of isolate CW 2 stain Gram positively, the morphology of the cells of isolate was c hanged from rod to round in the process of growth, the cells in the initial phase of logarithmic growth were longrod, majority of cells singly existed, minority of cells were geminated or formed a long discontinuous chain, until to invariable phage of growth, the c ells changed to globe.

分离出的菌株CW2为革兰氏阳性，在生长过程中细菌细胞的形态有球杆的变化，在对数生长期的初期细胞是直杆或者弯杆状，大多数单生，少数成对或者成不连续的链状，到恒定期变成类球形细胞。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。