The importance of FRA appears gradually when long distance transmission system of DWDM adopted largely because of its excellent features of distributed amplification, high gain, high output power, quick response speed, small non-linear influence, high signal noise ratio, et al. 由于具有可分布式放大、增益高、输出功率大、响应速度快、可降低非线性影响、噪声特性好等诸多优点,因而,随着DWDM长距离传输系统的大量应用,FRA的重要性日渐显露。
Big capacitance data are analyzed and disposed: the optimum different amplification ratio currents merged calculation is realized; 对采集的大容量数据进行了分析和处理:不同放大倍数泄漏电流最佳合并算法的实现;
The resonant frequency and angle amplification ratio of some complex transformers were measured. Experimental results basically agree with theoretical values. 对一些复合杆的谐振频率和放大系数进行了实验验证,实验结果与理论值基本一致。
The calculation shows that an oxygen-iodine amplifier using multiple optical path may get high amplification ratio and high chemical efficiency. 计算表明:氧碘放大器内采用折迭光路方案,可以获得高的放大率及化学效率。
To satisfy the need of inertial confinement fusion ( ICF), multi-pass amplification technology is being broadly used to increase the performance-to-cost ratio of the main amplification stage of an ICF driver. 多程放大技术已越来越多地用来提高ICF驱动器主放大级的性能价格比,以满足深入开展ICF研究的需要。
Algorithm and Accuracy Study of Wavefront Reconstruction with Different Amplification ratio Based On the Cyclic Radial Shearing Interferometer 径向剪切干涉波前重建算法和不同倍数下重建精度的研究
The relation between the broken face ′ s fractal dimension and porcelain bending strength is that they are positive correlation with the low amplification ratio and negative correlation with the high amplification ratio. 分维值与电瓷强度的关系为低倍数下呈负相关,高倍数下呈正相关。
To our commercial bank, current states of marketing risk are high rate of bad loan, low amplification rate of capital and low profit ratio. 其次,本文以我国商业银行市场风险的现实表现为切入点,分析指出其市场风险的相关表现,即不良贷款率高,资本金充足率不高,盈利能力低等。
KrF excimer is the best medium in UV ultra short pulse amplification for its small saturation energy and high contrast ratio accessible. 但是KrF激光器在放大超短脉冲激光时也需要解决一些关键问题,最主要是提高放大介质储能的利用率。
Through three rounds of affinity screening, washing and amplification, the results of enrichment experiment and the ratio of yield ( input/ output) assay showed that the positive clones were concentrated obviously. 经过三轮亲和筛选、洗脱、扩增后,在富集试验、投入产出比试验中均证实阳性克隆明显富集。
Results Low dose ionizing radiation improved the amplification volume of LAK/ TIL cells, decreased the cell death ratio in amplification process, and increased the toxicity of LAK/ TIL cells. 结果低剂量电离辐射可增加LAK/TIL细胞的扩增量,降低细胞扩增过程死亡率,并增加细胞毒性。
The formulas of the speed ratio and the force amplification ratio are obtained after the kinematic analysis of the clamping unit. The finite element model of the clamping unit is simplified on the basis of the two above-mentioned ratios. 对锁模机构进行运动学分析,给出了速比和力的放大比的计算公式,在此基础上对锁模机构有限元分析模型进行了简化。
After amplification, the products were detected. The A: G ratio of fluorescence intensity was consistent with the ratio of original template, which indicated that the method we established to identify SNP allelic ratio was feasible. 结果:在方法建立时,模板中A:G比例分别按1:1,1:2,2:1混匀,扩增后检测产物,A:G荧光光谱强度比例与原反应模板一致,表明我们建立的鉴别SNP等位位点比例的方法是可行的。
Signal amplification system designed partly based on the differential op amp amplifier circuit to improve the signal to noise ratio, increasing the signal common mode rejection ratio. 系统的信号放大设计部分采用了差分运放放大电路,以提高信号的信噪比,并增大信号的共模抑制比。
The main contents are as follows: 1.After discussing theoretically the amplification performance of composite horn, it is known that the amplitude ratio of composite horn is amplification ratio product of two single-horns. 主要研究内容有:1、对级联式变幅杆进行理论探讨,获得级联式变幅杆的放大性能。其振幅放大比为两单节变幅杆的放大比乘积。