The FRA gain mechanism can suppress the gain competition effectively and make the present multi-wavelength laser stable at room temperature. 光纤拉曼增益机制能够有效地抑制这种增益竞争,从而使得提出的多波长激光器能够在室温下输出稳定。
In the second chapter, a theoretical model of FRAs is presented and the main characteristics of FRA are discussed. 接着在第二章中对FRA的理论模型进行了较全面的分析,并讨论了FRA的主要工作特性。
The relationship between HbA_1c and glucose fluctuation in type 2 diabetic patients. Combination Test of FRA, BG and HbA1c in Monitoring Diabetes mellitus 2型糖尿病糖化血红蛋白与血糖波动关系分析果糖胺与血糖、糖化血红蛋白组合检查在糖尿病管理中的意义
Practice of Diagnosis of Transformer Winding Deformation by Combination of FRA and SCR Method 频率响应法结合短路阻抗法诊断变压器绕组变形状况的实践
But FRA is affected by many factors, so the persons using FRA instrument should have high measuring and analysing ability. 但是,频响分析法也受到诸多因素的影响,要求试验人员具有较高的测量分析能力。
The Application and Risk-warding Measures of the FRA in the Rate Risk Management of China's Commercial Bank 远期利率协议在我国商业银行利率风险管理中的运用及其风险控制
The FRA is an agreement that two parties agree today to a future exchange of cash flows based on two different interest rates. 远期合约是双方在场外交易市场直接谈判达成的协议。
Band study on transformer winding deformation based on FRA 基于FRA的变压器绕组变形的分频段研究
Combination Test of FRA, BG and HbA1c in Monitoring Diabetes mellitus A survey of relativity between family support and self-management of diabetic patients 果糖胺与血糖、糖化血红蛋白组合检查在糖尿病管理中的意义糖尿病病人家庭支持与自我管理相关性调查
The gain competition effects in the fiber Raman amplification ( FRA) and EDF amplification are analyzed and compared experimentally. 实验分析和比较了光纤拉曼放大器和掺铒光纤放大器中的增益竞争影响。
All preventive maintenance and calendar inspections required by the FRA will be performed on the preventive maintenance track. 联邦铁路管理局要求的所有预防性维护和定期检查,须在预防性维护轨道上执行。
The implement applications of erbium doped fiber amplifier ( EDFA) and fiber Raman amplifier ( FRA) make the launching power in optical fiber communications systems increased significantly. 掺铒光纤放大器(EDFA)和拉曼放大器(FRA)的使用,使得光纤通信系统中的入纤功率有了很大的提高。
He talked easily of Botticelli, and spoke of Fra Angelico with a faint condescension. Fibonacci numbers at least have the virtue of creating a testable proposition; one that they appear to fail. 谈起波提切利,他毫不费劲,说到弗拉安基利科,他甚至带着点屈尊俯就的神气。斐波纳契数的优点在于至少有可测试的主张;一个看起来错了的主张。
If you're making cr è me fra î che simply to top fruits or pastries, then seek unhomogenized cream. 如果你只是将鲜奶霜放在水果或糕饼上,那么取用去匀质化奶油。
Thirdly, a new analytical expression for the noise figure of FRA is derived. 第四,给出了一种相比已有文献更为精确的FRA噪声系数的解析表达式。
For the convenience of transformer winding fault study, the authors developed a transformer fault simulation system with the frequency response analysis ( FRA). 为了方便研究变压器绕组故障,采用频率响应的分析方法,开发出了变压器绕组故障仿真模拟系统。
If you're going to cook with the cr è me fra î che or blend it with other flavors, then stable homogenized cream will do. 如果你要用鲜奶油做菜,或者用它和其它口味混合,那么稳定、同质的奶油可以。
Both FRA and NFMA strengthen the ability of developing countries to manage their forestry information base for their own benefit. 无论是全球森林资源评估(FRA)还是国家森林监测和评估(NFMA)都使得发展中国家管理其森林信息库的能力得到提高并从中受益。
One way to isolate money market concern about banks is the FRA/ OIS spread, which measures the pure credit risk of lending to banks for three months, stripping out interest rate fluctuations. 鉴别货币市场对银行担忧程度的途径之一,是远期利率协议/隔夜指数掉期(fra/ois)息差,该数据衡量向银行提供三个月贷款的纯信贷风险,剔除利率波动影响。
Nothing but Fra Luca's death could remove all danger. 只有卢卡修士死了才免除一切危险。
Fra pavel: are you familiar with the prophecy of the witches? 弗拉帕沃尔:你知道巫师们的预言能力吗?
The important parameters to describe the gain of the FRA are the Raman gain coefficient and effective Raman gain. 拉曼增益系数和拉曼增益谱是衡量光纤拉曼放大器增益性能的两个重要指标参数。
A novel method based on PSO is developed to design the counter-multiwave-pumped broadband fiber Raman amplifiers. 提出了一种基于粒子群算法(PSO)优化设计反向多波长泵浦光纤拉曼放大器(FRA)的方法。
The effects of double Rayleigh scattering noise in fiber Raman amplifiers are theoretically analyzed. 分析了光纤拉曼放大器(FRA)双瑞利散射(DRS)噪声特性;
The method of increasing the gain, the power conversion efficiency and the saturation output power are presented. 第二,研究FRA增益和功率转换效率与工作参数(包括信号输入功率、泵浦输入功率、光纤参数)间的关系,给出了提高FRA增益、饱和输出功率和功率转换效率的途径。
This paper, on the basis of the discussion of working character of the Raman amplifier, analyzes the application of the optical fiber Raman amplifier to extending the bandwidth with the introduction to the experiments of the several application methods. 在分析了光纤拉曼(Raman)放大器工作特点的基础上,对光纤拉曼放大器(FRA)在扩展光纤带宽方面进行了分析研究,并对几种应用方法的试验情况做了介绍。
Analysis of gain flatness of multi-wavelength pumped FRA and optimization of FRA+ EDFA wide band amplifier design. 对多波长泵浦FRA的增益平坦问题进行了分析,对FRA+EDFA宽带放大器进行了优化设计。
In this paper, we introduce the theoretic model of distributed fiber Raman amplifier in WDM optical transmission system and analyse the design of gain flatness. 介绍了在波分复用(WDM)系统中分布式光纤拉曼放大器(FRA)的理论分析模型.在此基础上,对增益平坦设计所需考虑的因素进行了分析;
This paper provides the balance theory and design method for a new type of gain flattened wide-band FRA. 本文提出了一种新的宽带FRA增益平坦化的补偿理论和设计方法。
Fiber Raman amplifier ( FRA) has been recognized as an ideal choice for the next-generation optical amplifiers. 光纤喇曼放大器是目前公认的下一代光放大器的理想选择。