查询词典 fiber map

Fourier transformation image-processing technology was applied for determining the cross section fiber cell arrangement in hardwood. In this method, the disc-convoluted dot map from each cell radius with 10 pixels was transformed by Fourier transformation, and generated the angle distribution function in the power spectral pattern. The maximum value reflected the arrangement of the fiber cell.

利用傅立叶变换图象处理技术来测定阔叶材横切面纤维细胞排列，把表示每一个纤维细胞的半径为10个像素点的圈盘点图，进行傅立叶变换，再做能量光谱图的角度分布图，其最大值表示纤维细胞的排列。

The characteristic of telecom network resource data is generous and has tight relationship with the map, fiber network as a example, all kinds of its resource(for example, equipment rooms, pipes, fiber, fiber connecting boxes) contains all space vector information that tokens space position and topology relation, and attribute information that records idiographic content and entitative characteristic.

电信网络资源数据的特点是量大而且与地图的关系十分密切，以光纤网络为例，它的各类资源(如机房、管道、光缆、光交接箱)都包含表征空间位置及拓扑关系的空间矢量信息，以及记录具体内容及本质特征的属性信息。

It has the following units: Jilin provincial microwave resources management; Jilin provincial cable line management; cable line map management; fiber rooter map management; communication equipment instrument and materials management; fix and reconstruct plan management; cut and connect management; circuits attempter management; work plan management; daily report management; report transport; mechanical power bureau's equipment management; and the satellite bureau management.

具体分为如下几个模块：吉林省微波站资源管理、吉林省光缆线路管理、光缆线路图管理、光缆路由图管理、通信设备、仪表、材料管理、大修改造计划管理、割接管理、电路调度管理、作业计划管理、日汇报管理、报表传送、机动局设备管理、卫星局资源管理。

The system carried out common map's edit and operation function,fiber network's space and attribute data management function, can also carry on to the related data comprehensive analysis processing,It is helpful for the programming design and maintenance of fiber network. It can also improve the management efficiency of optical fiber network to raise the movement efficiency of network, promise a whole net the correspondence is unimpeded, exaltation customers satisfaction.

系统实现了常用地图编辑和操作处理功能、光纤网络的空间及属性数据管理的基本功能外，还能够对相关数据进行综合分析处理，为网络规划设计和维护管理提供辅助决策支持，从而对光纤网络进行全面的、有效的管理，提高网络的运行效率，保证全网通信畅通，提高客户满意度。

The structure sketch map of the all fiber velocity interferometer is given in this paper, and then we analyze its work principle and list several system's pivotal technique indexes.

文中给出了全光纤速度干涉仪的结构示意图、分析了其工作原理并研究了系统的几个关键技术指标。

GDxVCC is an automatic computer- controlling system, which combines scanning laser technology and polarization modulation, provides retardation map of peripapillary retinal nerve fiber layer caused by birefringent properties of the RNFL. The quantitative description of RNFL may be obtained after the map is analyzed.

GDxVCC系统采用自动化的电子计算机控制系统，将激光扫描技术和偏振调制器相结合，提供因视网膜神经纤维层双折射特性所产生的视盘周围视网膜神经纤维层的延迟图像，通过对图像的分析处理，获得视盘周围视网膜神经纤维层厚度的定量描述。

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。

A three-dimensional simulation method based on Matlab was designed. Moreover its better simulation was verified by a contrast diagram from different fiber finesses and a figure after three dimensional mapping. Finally, the main applications and their development directions for the two methods were prospected on a simulation based on lines and a three-dimensional map.

论述了基于Matlab的三维纱线模型的建立方法，并通过不同细度纤维构成纱线对比效果图和三维映射后三维纱的模拟图，验证了该法可以模拟出真实感较强的三维纱线，指出线性模拟和三维映射2种方法的主要用途和发展方向。

In simulation, we use the software called "BeamPROP 5.1" by "RSoft Design Group" to study the wave propagation in the tapered fiber and calculate the monitored power, mode profile, contour map…etc.

在模拟实验上，我们利用R-Soft公司出版的BeamPROP 5.1这套软体进行模拟。我们观察到波在拉伸光纤中的传播特性，并且讨论波经过拉伸光纤后的功率、电场分布型态、电场的等高线图…等。

These results provide references for genetic map construction and utilizing reasonably the fiber quality QTLs from Yumian No.1 in fiber quality breeding improvement in Upland cotton.

研究结果为陆地棉品种遗传图谱的构建以及合理利用来源于渝棉1号的优质QTL提供了参考依据。

He is the most remarkable man that I have ever known.

他是我知道的人中最值得注意的人。

Increased appearance of lymphocele was noticed in patients with diabetic nephropathy, congenital malformations of the urinary tract, and inflammatory diseases, including glomerulopathy and extraglomerular ones, after high-voltage radiotherapy and after removal of the renal graft.

经过高压放射疗法和切除移植肾后，在糖尿病肾病患者、泌尿系统先天性畸形患者和炎症患者身上发现淋巴囊肿有所增加，包括肾小球病和球外疾病等。