变换

The basic theory of remote watching system for an unmanned substation is introduced. The necessity of image compaction in dada transmission, the theory of 2?dimension wavelet transform, and Mallat algorithm are also explained. Based on that, the method for reconstituting the site image with the original picture and the effective area,which is compacted by the wavelet transform and transmitted to dispatch center, is analyzed.

介绍了无人值守变电站遥视系统的基本组成原理，阐明了压缩传输图像的必要性，论述了二维小波变换的原理与Mallat算法，在此基础上，着重分析了利用二维小波变换压缩传递图像的有效区域并传至调度中心与底图重构出现场实况的方法。

This article attempts to attain the research goal that is identifying the ecotypes of wet lands located at the source of Yellow River on the basis of the operation of slicing which was imposed on NDVI ,TM4 and the wetness component derived from the Tasseled cap transform and the operation of classification which was implemented based on the characteristic images coming from LBV transform.

本文尝试基于NDVI，TM4，缨帽变换湿度分量进行密度分割和基于LBV变换图像进行分类的方法达到识别黄河河源湿地生态类型的研究目标。

The method to record the position and intensity of absorption lines with the Fourier\|transform Intra\|cavity Laser Absorption Spectrometer is discussed.

介绍了使用连续扫描方式工作的傅里叶变换光谱仪来探测激光腔内吸收光谱的原理，并探讨了傅里叶变换激光腔内吸收光谱方法测量光谱谱线和强度的工作方式。

The relationship among the order of FRFT, the power of the pump beam and the propagation distance z is given. Mutual induced FRFT is another new method to realize light control light.

通过改变泵浦光的光功率，可以在同一位置得到信号光不同阶数的光学分数傅立叶变换图象，互诱导分数傅里叶变换是实现光控光的又一方法。

The main content included in the paper is as follows: The European identification methods of type of wave load is introduced and compared with the methods in Code of Hydrology for Sea Harbour. In order to reveal their difference, they are tested by the experiment data. The relation between phase and frequency are analysed through the Hilbert and wavelet transformations. And a new method of identifying the breaking wave load is set up based on the linear relation between wave height and wave press before the breakwaters. The probability distribution is tested by the statistic of experiment data. Based on the experiment data, the paper analysed the influence of reflection coefficient according to different factors, and its property is got. The work property of charmfered breakwater under breaking waves is analysed. Through the statisticof its wave press and wave force the distribution of press on the breakwater front face and its reducing effect to breaking wave force are proved.

本文基于此，通过实验研究，主要作了如下工作：介绍了欧洲波态划分方法，分析与我国方法的异同，通过实验进行了验证；通过 Hilbert 变换和小波变换对波浪破碎的相频特性进行了分析，通过建立波高与波压关系来判别破碎波浪力；对破波条件下波浪力的分布进行了统计研究，验证了其分布类型；利用实测资料，分析了不同因素对反射系数的影响，得出了不同周期、波浪要素、破碎率下反射系数体现的不同规律；分析了破碎波作用下削角堤的工作特性，通过对堤面所受的波压力和总力的统计分析，验证了压强分布规律及削角堤对波浪力的削减作用。

Based on the research, this dissertation has studied the M/G/1 and GI/GI/1 queueing systems, and drew the following conclusions: Firstly, we present the equation which satisfies the transient distribution of the lengthof L(T,θ1,θ2 for GI/G/1 queueing systems, and proves that the lengthL(t,θ1,θ2 for GI/G/1 queueing systems satisfy two types of equation, and aretheir minimal nonnegative solutions. Furthermore, we give out not only the expression of Laplace transformation, but also the expression of Laplace transformation of busy-idle period, as well as the equation that satisfies the waitingtime of W

第一，首先给出了GI／GI／1排队系统队长L(t，θ_1，θ_2的瞬时分布所满足的方程，证明了GI／GI／1排队系统队长L(t，θ_1，θ_2的概率分布满足二种不同方程，并且是这些方程的最小非负解，进一步给出了其拉氏变换的表达式，还给出了闲忙周期的拉氏变换的表达式，同时对等待时间W(t，θ也作了同样的处理。

Cascade and diode-clamp voltage source converter has become increasingly popular in recent years due to their practicability.

级联多电平变换器和二极管箝位多电平变换器是现今研究较多并且实用性较强的两种多电平拓扑结构。

A composite cascade multilevel converter composed of a main converter and an accessorial one is presented which is well suited for application in high voltage situations with high performance requirements.

针对高电压、高性能功率变换场合的需要，提出了一种主从组合式多电平变换器的拓扑组合结构，具有输出波形质量高、输出电压等级高和功率转换效率高等特点。

On the basis of comparative analysis of the relevant micro-imagemosaicing algorithms, a suitable algorithm is choosed to combine local images to ahigh-resolution images of greater vision, which is better for pathologist to observe cervical cellmorphology. By some measurement algorithms of pathological cells and metal particulate which are reported in magazines, cervical cell parameters measuring and nucleus plasm ratio analysisare better realized.

本论文通过将成熟的图像处理算法有针对性地用于宫颈细胞图像处理，较好的实现了对宫颈细胞图像几何变换，色彩变换，平滑，增强，边缘检测；在对比分析相关显微图像拼接算法的基础上，选择合适算法将局部图像合成更大视野的高分辨率图像，供医生更好的观察细胞形态；将相关文献中报导的处理病理细胞和金属微粒形态测量的算法用于宫颈细胞形态参数的测量，较好的实现了细胞形态参数测量及细胞核浆比分析等功能。

MACT uses an improved cone tree as the metaphor of network topology. Real time traffic between every two directly connected nodes are represented with animated color lines, and the shade of each line's color is determined by the data rate through the line.

MACT用改进的Cone tree作为网络拓扑隐喻，用不同颜色的动态模式变换线，表示任意两个相连节点之间的实时数据流（颜色表示数据流速，模式变换的方向表示数据流向），用始于一个节点的两种颜色的圆柱，表示流入和流出该节点的数据总量。

Since historical times,England ,where the early inhabitants were Celts, has been conquered three times .

从有历史以来，英国，在此地早期居住的是凯尔特人，已经被征服了三次。

Bluetooth OBEX File Transfer Enables the sending and receiving of files on your phone via Bluetooth.

蓝牙OBEX文件移动允许经过蓝牙传送和接受文件。。。。