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applied mathematics
相关语句
  应用数学
    Cryptology is an intersectant subject of Applied Mathematics and Computer and so on, its role becomes more and more important.
    密码学作为应用数学和计算机等学科的交叉性学科,在信息安全中发挥着越来越重要的作用。
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    A torsional vibration digital signal processing system,successfully developed on the basis of fundamental theory of signal processing,computer technology,mechanical fault diagnosis,applied mathematics and practice,is presented in the paper.
    介绍了基于信号处理、计算机技术、机械故障诊断、应用数学等多种领域的基础理论 ,并辅之以大量的实践所成功开发出的扭转振动数字信号分析系统 TVDSPS。
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  applied mathematics
The digital computer Z4 which was installed in 1950 at the Institute for Applied Mathematics of the ETH Zurich was a remarkable instrument in many respects.
      
Quantum information theory is a new interdisciplinary research field related to quantum mechanics, computer science, information theory, and applied mathematics.
      
The Wiberg algorithm is a numerical algorithm developed for the problem in the community of applied mathematics.
      
To allow direct comparisons with algorithms from the applied mathematics and computer vision communities, we consider both inhomogeneous and homogeneous systems.
      
Supercomputing applications to the numerical modeling of industrial and applied mathematics problems
      
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A torsional vibration digital signal processing system,successfully developed on the basis of fundamental theory of signal processing,computer technology,mechanical fault diagnosis,applied mathematics and practice,is presented in the paper.Taking the application software as the dominant factor,the system is composed of an A/D board and a personal computer.Integrated data analysis with other functions,it can be used to perform vibration measurement,measured...

A torsional vibration digital signal processing system,successfully developed on the basis of fundamental theory of signal processing,computer technology,mechanical fault diagnosis,applied mathematics and practice,is presented in the paper.Taking the application software as the dominant factor,the system is composed of an A/D board and a personal computer.Integrated data analysis with other functions,it can be used to perform vibration measurement,measured torsional vibration data analysis,equipment fault warning and condition monitoring.The main features of the system are: high speed and high accuracy in torsional vibration analysis and fault warning,using application software to perform synchro frequency tracing,the Hilbert transform,FFT, amplitude/phase demodulation of torsional vibration,etc.,and having advantages over the same kind based on hardware or the integration of hardware and software in useability,transplantability,maintainability,redevelopmentability,etc.[KH4/5D]

介绍了基于信号处理、计算机技术、机械故障诊断、应用数学等多种领域的基础理论 ,并辅之以大量的实践所成功开发出的扭转振动数字信号分析系统 TVDSPS。该系统采用微机和 A/D板构成的主从并行系统控制实现以纯软件为主的快速、灵活和高精度的扭转振动数字信号分析 ,并兼有设备故障报警功能 ,集检测、分析、监控于一体化。在工程信号专业处理上 ,具有扭振分析及报警的快速及高精度性。在控制方式上 ,用软件成功地模拟实现了同步频率跟踪、希尔伯特变换、快速傅立叶变换及扭振幅相解调等功能 ,在系统的可使用性、可移植性、可维护性、再开发性和开发费用等多方面具有对比硬件控制及软硬结合控制明显的优越性。

As a new type of multiresolution frequency transform theory, wavelet transform has been widely used in applied mathematics?physical and inform science. In image processing, especially in image compression, recently last ten years, investigations and applications of image compression with wavelet transforms are very active. By analyzing construction and vanishing moment properties of biorthogonal wavelets, we propose a very simple method by the solution of linear equations, so that a new wavelet construction...

As a new type of multiresolution frequency transform theory, wavelet transform has been widely used in applied mathematics?physical and inform science. In image processing, especially in image compression, recently last ten years, investigations and applications of image compression with wavelet transforms are very active. By analyzing construction and vanishing moment properties of biorthogonal wavelets, we propose a very simple method by the solution of linear equations, so that a new wavelet construction method that contains parameters is presented. For various wavelet parameters, and based on properties, we discuss performance of quality and computation of restoration image by means of wavelets in this paper. When wavelet coefficients are simple integers, simulation experiment shows that the new method can retain both high compression performance and very good fast computational feature.

通过研究双正交小波变换的结构以及消失矩特性 ,利用线性方程组的求解 ,提出了一种双正交小波变换的构造方法 ,从而设计出一种新型的含参数 9/ 7双正交变换 .对于不同的小波变换系数参数 ,根据其不同性质讨论了不同小波实施图象压缩的恢复图象质量及其计算方面的性能 .当小波系数为简单整数时 ,图像压缩的数值实验表明 ,该方法在保证良好压缩性能的前提下 ,同时也具有良好的快速计算性质

 
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