分析工具

Based on the basic principle of matrix analysis and the guiding policy for air flight route planning, and in connection with the characteristics of the domestic air service as well as their market environment, according to the article, the traditional met

摘要基于矩阵分析的原理和航线规划的原则，结合中国航空公司的特点和市场环境，将传统的矩阵分析方法应用于航空公司航线规划中，为航空公司在激烈的市场竞争中进行正确的航线规划提供了一种有效的战略分析工具。

At the same time, combining with the actual condition of delivery pipeline of our country and some prevalent leak detection and location methods, this paper raised a method, which is based on wavelet analysis and negative- pressure-wave to detect and locate the leakage. Jobs in the paper are as follows:As affected by gas density, pressure, specific heat and pipe material, the velocity of negative-pressure-wave improved depending on the energy conservation. At one time, taking the affection of velocity of gas flow, the location formula was modified in some degree.When locating the leaks with location formula, the iterative approach algorithm was adopted as a new method to increase the location accuracy level of system.Multi-scale decomposition and reconstruction of wavelet transform is utilized to filter the noise of negative-pressure-wave, which was brought by leakage. With the capacity to detect the signal singularity fast and accurately, wavelet transform was used to catch the break point of pressure signal. The work improved the accuracy of At in location formula, accordingly improved the location accuracy.Wavelet is a suitable tool for signal analysis. The distinct character is that the mother-wavelet is of optional. That means choosing different mother-wavelet will get different analysis result. So we studied how to choose mother-wavelet and its scale for signal singularity detection. The method is to choose a wavelet by regularities of the wavelet and the signal.Finally, a plan, which bases on SCADA system for inspection and detection of natural gas leakage, is proposed in the article.

其中，主要进行了以下几方面的工作：针对泄漏产生的负压波在管道中的传播速度受媒介的密度、压力、比热及材质等因素的影响，而非声波在空气中传播的速度，本文利用能量守恒原理，对其进行了修正；考虑到管内气体流速对压力波速的影响，对原始的负压波定位公式进行了一定程度的改进，并在利用定位公式进行泄漏点定位时采用逐步迭代逼近算法，提高了系统的定位精度；利用小波变换的多分辨率分解和重构技术，对采集到的管道发生泄漏时产生的负压波信号进行了降噪处理；并利用小波变换技术对信号奇异点的快速、准确的识别能力，对经上述消噪后的负压波信号进行了奇异点捕捉，精确捕捉的结果提高了定位公式中上下游站点采集到的负压波奇异点的时间差△t的精度，从而进一步提高了定位的精度；考虑到小波变换是一种基波可变的信号分析工具，也就是说，不同的小波基波对信号分析的结果将有很大差别，这势必影响最终的处理结果，因此，我们又对比分析了本课题中小波基及尺度的选择问题，依据规则性系数相似性原理对母小波的选择进行了探索性研究；最后，还提出了基于SCADA的泄漏检测与定位系统的软件开发构想及系统的嵌入方案。

In this paper a new method named Circle Diagram Analysis is presented which could be used as a practical analytical tool between DFT and FFT, and makes the above mentioned analyses more concise.

本文提出的圆图分析法可作为离散型富氏变换与快速富氏变换之间的一个实用分析工具，且分析简明扼要。

This thesis analyzes the interests framework of comparative advertising and its harmonization with the interest equilibrium theory as well as various research methods.

全文以比较广告的核心问题棗利益结构为研究主线，以利益平衡理论为分析工具，综合运用各种研究方法（包括比较的方法、实证分析方法、跨学科分析方法、归纳法等），对比较广告的法律地位及其利益结构的内涵与协调进行了深入探讨。

Wavelet analysis is a tool of time-frequency analysis after Fourier analysis.

小波分析是继Fourier分析之后的新的时频域分析工具。

IP packet interception mechanism is a network performance analysis tools and network security tools to achieve.

IP数据包截获机制是网络性能分析工具和网络安全工具的实现基础。

Develop and apply producibility and supportability guidelines and utilize formal tools such as design for manufacturability/assembly and maintainability analysis tools to improve product designs.

发布和使用产品可制造性和可支持性的指导方针，使用正式的工具如DFM/DFA和可维护性分析工具来改善产品设计。

GC-MS or LC-MS is a kind of modern,fair chemical analytical technique,which combine higher separation ofChromatography with strong identification of Mass.It was applied in new drug research including concentration determination,impuritycheck,pharmacokinetic,anabolite analysis and so on.The paper reviews their application examples for recent years and shows itsdevelopment future.

气一质联用法和液一质联用法将色谱的高分离性能和质谱的高鉴别特点相结合，组成了较完美的现代分析技术，在新药研究的含量测定，有关物质检查、质量标准制定以及药物动力学研究的代谢物分析、药物及代谢物的体内浓度分布等试验中，成为有力的分析工具，文章综述了近年来色谱一质谱联用在以上领域的应用实例，展示了它的发展前景。

This paper put forward the optimized methods include reconstructing the characteristic curve by reasonable use of the adjust tools and analyse tools of the modeling software, admeasuring the automotive model surface correctly, simulating the breaking surface and creating the surface in the right turns which is good for modeling a smooth and exactitude surface.

本文通过合理利用反求软件中的造型工具和分析工具，正确划分反求模型的造型区域，使用正确的曲面造型方法，对反求曲面的特征网格线进行二次优化，并对突变曲面进行拟合再生成处理及建立合理的曲面生成顺序等方法，最终获得了仿型度和光顺度都很高的反求曲面。

As an analysis tool, the Neo-Roman theory is helpful to understand the content of American constitutional republicanism-its origin and its connotation. Meanwhile, it will lead to certain distortion of American constitution republicanism, because the Neo-Roman theory interprets Roman republicanism with contracted and instrumental attitude.

作为一种理论分析工具，新罗马理论是解读美国宪法共和主义内涵的重要路径，有助于理解美国宪法共和主义的起源与内涵，但同时，由于新罗马理论对罗马共和文本解释的简约化处理和工具化的态度，从而导致对美国宪法共和主义一定程度的曲解。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。