- 更多网络例句与级联相关的网络例句 [注：此内容来源于网络，仅供参考]
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The matched abundance ratio cascade theory was used to design the cascades.
应用匹配丰度级联理论的基本原理，计算了不同关键相对分子质量下的级联，分析了级联参数的变化。
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One of the key techniques in Continuous Handwritten Character Recognition is how to model every word entry in lexicon and every sentence that made up by the words. Due to the HMM′s characteristic of time sequence modeling capability, a Cascaded Hidden Markov Models, which defines model connection probability and state transition probability between HMMs, is proposed in this study.
利用HMM对时间序列的较强的建模能力这一特点，提出了可用于连续字符识别的HMM级联模型；给出了字符HMM模型连接概率和模型间状态转移概率的定义，并通过修正训练算法的重估公式，重估字符模型的连接参数，描述了用于手写体识别的字符HMM的设计方案；给出了级联训练算法重估公式和级联Baum-Welch训练算法描述。
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A new universal hybrid topology is brought forward. Two types multilevel inverter: equal DC voltage and DC voltage in geometric proportion is studied, besides this, simulation and experiments on SVPWM applied on cascaded H-bridge inverter is also studied.
提出了多电平逆变器的一种通用组合拓扑结构，针对这种拓扑结构重点，研究了直流侧电压相同及等比变化的两类级联拓扑以及级联H桥逆变器的矢量控制方法；并对级联H桥逆变器的矢量控制方法做了实验研究。
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With the support of a major research grant of Zhejiang Province (No. 001101027) and the Plan of Promoting Education of Excellence of Zhejiang University in the 21st Century, this dissertation is devoted to address the above problems and fabricate an L-band EDFA with low cost, high performance and technological innovation.First the mechanism of an erbium doped fiber amplifier is introduced. Various theoretical models based on classical rate propagation equations are summarized and compared for their applications. We use a modified numerical model based on the Giles model, which agrees with the experimental results well. This serves as the theoretical base for the whole thesis and will be used to optimize the characteristics of EDFAs. A novel method based on a map of noise figure and gain is proposed to analyze efficiently the dependence of the noise figure and gain for EDFAs on the EDF length and the pump power. The characteristics of various EDFAs are studied and compared.Secondly, some important parameters are introduced to describe the characteristics of EDFAs. The methods and the experimental setups for measuring the gain and noise figure of an EDFA are emphasized. We introduce how to measure the characteristics of each component of an EDFA, especially the gain and absorption coefficient of an erbium doped fiber.Thirdly, four types of simple and novel L-band EDFA structures with low noise, high gain and low gain ripple are proposed to satisfy the requirement of a DWDM system. They can be classified into two categories. In the first category, a single ASE pumping is served asa secondary pump. This category includes the following three types. Type: a new construction using a fiber Bragg grating in an unpumped EDF section at the input side. Type: a new structure of L-Band EDFA with two-stage pumps, which utilizes the forward ASE as a second pump.
本论文本着科技创新、服务于生产实践的精神，以设计价格低廉，性能优越、结构合理简单的L-band EDFA为目标，依托浙江省科技厅重大科学基金资助项目(001101027)和浙江大学振兴教育计划资助的全光网络的搭建—《光通信技术》课程实验建设项目，展开了如下工作：首先，介绍了掺铒光纤放大器的工作原理，归纳总结了基于速率方程基础的EDFA的各种理论模型，分析比较了各个模型的特点和适用场合，最终选择完善的Giles理论模型作为本论文分析设计EDFA的理论基础；针对实际实验条件提出了修正的EDFA模型的数值计算方法；创新地提出了增益—噪声系数全局分析法，直观有效地分析了EDFA的增益和噪声系数与掺铒光纤长度和泵浦功率的依赖关系，并对各种EDFA的性能作了全面的比较；第二，介绍了掺铒光纤放大器特性参数的定义与测量方法，重点介绍了噪声系数和增益系数的测量方法及实验装置；介绍了组成掺铒光纤放大器各组件的特性测量方法，重点介绍了测量掺铒光纤参数的方法和实验装置；第三，针对WDM系统对L-band EDFA谱平坦、低噪声、高增益的要求，我们创新地提出了四种不同的L-band EDFA结构，按设计思路可以分为两大类：一类是基于单抽运二级泵浦法，这一类包括在未泵浦掺铒光纤的输入端插入一根布拉格光纤光栅的两段L-band的EDFA的新结构；基于前向ASE光作为二级泵浦源推动下一级EDF工作的泵浦分配、两段级联L-band的EDFA的新结构；基于单根光纤光栅、泵浦分配、两段级联的EDFA；另一类则是基于同时应用前后向C-band ASE作二级泵浦源的双抽运法，如基于前后向ASE光作为二级泵浦源的三段级联L-band的EDFA的新结构。
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In order to study the characteristics of pulse amplification in multi-stage cascade ytterbium-doped fiber amplifiers,the three-stage high-gain pulse fiber amplifier with all-fiber structure was experimentally studied based on the master oscillator power amplifier technology.
为了探讨多级级联掺镱光纤放大器的脉冲放大特性，采用主振功率放大技术，实验研究了3级级联、全光纤结构的高增益脉冲激光放大器。
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A novel hybrid diode-clamp cascade multilevel converter is presented in this paper. The new concept of the converter is based on connection of multiple diode-clamp converter modules with different dc bus voltages. Normally, the voltage blocking capability of faster devices such as IGBT and the switching speed of high voltage devices like GTO are found to be limited.
该文在研究传统的级联多电平、传统混合级联多电平以及二级管钳位级联多电平变换器的基础上提出了一种新型的混合二极管钳位级联多电平变换器，这种新型变换器是将具有不同直流母线电压的多个二极管钳位多电平变换器进行级联，输出电压是将这些变换器的输出电压进行矢量相加而合成的。
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This thesis discussed the construction method for hybrid cascade asymmetrical multilevel converters,and some novel topologies are presented. Hybrid cascade asymmetrical multilevel converter can be derived by combining AMC and AMC,or combining AMC and SMC.
本文研究了组合式不对称混合级联型多电平变换器拓扑的生成方法，在此基础上提出了几种新型拓扑，重点研究了不对称同构混合级联型多电平变换器和不对称异构混合级联型多电平变换器。
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Water Cascade Analysis technology was used to synthesize the water use network for batch processes,which could determine the water pinch point location and the minimum utilities target of the batch process:minimum fresh water use and wastewater discharge.
利用水级联分析法对间歇过程用水网络进行研究，确定过程的用水夹点及最小新鲜水用量和最小废水排放量，提出了间歇用水过程的全局夹点的概念，考虑了用水过程的流率限制，在水级联表格中用流率替代了传统水级联分析法中的传质量，识别过程中每个时间段的局部夹点及公用工程目标，通过全局夹点和局部夹点的比较，指出过程的用水瓶颈，设置储罐打破瓶颈，使用水网络公用工程目标最小化。
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A numerical calculation method to solve the cascade equation was presented. Analytical solution to the cascade equation was obtained in the case of quasi-ideal cascades, that is, the cascades with a constant partial cut at all stages.
各级组分分流比不变的多组分级联称为准理想级联，得到了计算存在损耗的准理想级联中相对产品流、相对贫料流、级联中总物质流量以及产品流和贫料流中组分丰度的解析表达式。
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A numerical calculation method to solve the cascade equation was presented.Analytical solution to the cascade equation was obtained in the case of quasi-ideal cascades,that is,the cascades with a constant partial cut at all stages.Formulas were given for the calculation of the relative product and waste flows,the total substance f...
各级组分分流比不变的多组分级联称为准理想级联，得到了计算存在损耗的准理想级联中相对产品流、相对贫料流、级联中总物质流量以及产品流和贫料流中组分丰度的解析表达式。
- 更多网络解释与级联相关的网络解释 [注：此内容来源于网络，仅供参考]
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cascade amplifier：串级放大器;级联放大器
串级加速器;级联加速器 cascade accelerator | 串级放大器;级联放大器 cascade amplifier | 串级电池[组];级联电池[组] cascade battery
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concatenation：级联
另外,为了增强承载业务的灵活性,级联(Concatenation)技术在数据业务进入VC之前得到应用. 级联技术又分为连续(Contiguous)级联或虚(Virtual)级联两种. 以100M以太网的VC-12级联为例说明其原理:该技术将n个VC-12捆绑在一起形成一个整体VC-12-n,
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concatenated frequency changer：串级变频机,级联变频机
级连码,链接码 concatenated codes | 串级变频机,级联变频机 concatenated frequency changer | 级联电动机,串级电动机 concatenated motor
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cascade buncher：串级聚束器;级联聚束器
串级断路器;级联断路器 cascade breaker | 串级聚束器;级联聚束器 cascade buncher | 串级浓缩器;级联浓缩器 cascade concentrator
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concatenated motor：级联电动机,串级电动机
串级变频机,级联变频机 concatenated frequency changer | 级联电动机,串级电动机 concatenated motor | 串级调节,级联调节 concatenation control
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cascade amplification：级联放大
cascade 串联,级联,级联系统 | cascade amplification 级联放大 | cascade chromatography 级联层析
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cascade converter：级联变换机
cascade control 级联控制串联调速 | cascade converter 级联变换机 | cascade converter 级联变换机级联变换器复串联变流器
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cascade converter：级联变换机级联变换器复串联变流器
cascade converter 级联变换机 | cascade converter 级联变换机级联变换器复串联变流器 | cascade converter 级联变换器
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cascade converter：级联变换器
cascade converter 级联变换机级联变换器复串联变流器 | cascade converter 级联变换器 | cascade current transformer 级联电流互感器
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concatenation control：串级调节,级联调节
级联电动机,串级电动机 concatenated motor | 串级调节,级联调节 concatenation control | 串级电动机,级联电动机 concatenation motor