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一维时间     
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  one-dimension time
     Applying phase space reconstruction method,G-P arithmetic,C-C arithmetic and Wolf method,this paper distills Lyapunov exponents from one-dimension time series of underground water table in Ningling county. The result indicates that this time series possesses the character of chaos.
     利用相空间重构技术,并借助G-P算法、C-C方法和Wolf方法从宁陵地区地下水位一维时间序列中提取Lyapunov指数,结果表明此时间序列具有混沌特征。
短句来源
     Phase space reconstruction of one-dimension time series on Nilaparvata lugens(st a l)occurrence and determination of chaotic attactor dimension
     褐飞虱发生的一维时间序列相空间重构及混沌吸引子维数的确定
短句来源
     'Postmodern'is not following of the linear history idea and one-dimension time logic and cancellation of past history, on the contrary, it provided the possible horizon which lead past history to break through the above-mentioned logical chain and to pile itself upon the present
     “后现代”不是继续遵照进线性历史观念与一维时间逻辑对于以往历史的取缔,它恰恰是提供了让既往历史冲决这种逻辑链条在当下纵横叠加的可能性空间。
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     When we measure the high dimension system, we usually acquire the one-dimension time series of this system.
     对高维系统的测量得到的通常只是一维时间序列。
短句来源
     In this paper,the difference between strict self-similar and statistical self-similar has been given. Based on the difference,two considerable problems on the dimension of attractor from one-dimension time series of the experimental data,namely,the range of scale and the coefficient of proportion in the formula of fractal dimension,and the relationship between the doublelogarithmic figure and the D-m figure are discussed.
     该文给出了严格自相似和统计自相似的区别,并由此讨论了用一维时间序列确定吸引子维数应注意的两个问题,即维数计算公式中的标度范围及比例系数问题和双对数图与D-m图的关系问题。
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  one dimension time
     A new method to determine chaotic attractor structure through experiment data is presented. The method is based on state space reconstitution scheme, that is, according to one dimension time sequence of the given state parameters of chaotic system, the attractor can be reconstructed by use of time delay technology.
     研究了一种通过实验数据来确定混沌吸引子结构的新方法——相空间重构法, 即根据混沌系统中某一状态量的一维时间序列, 用时延技术进行吸引子重构。
短句来源
     The identification method for the one dimension time series,open loop and closed loop system are developed by use of model ARMA.
     讨论了一维时间序列开环系统、闭环系统的辨识方法及定阶问题 .
短句来源
  one-dimensional time
     A PRELIMINARY STUDY OF RECONSTRUCTION OF THE DYNAMIC SYSTEM WITH A ONE-DIMENSIONAL TIME SERIES
     利用一维时间序列重建动力系统的初步研究
短句来源
     Theoretically, it is possible to estimate all Lyapunov exponents of chaos systems from one-dimensional time series.
     理论上从一维时间序列可以数值求解对应混沌系统的全部Lyapunov指数,在本文中研究了从一个一维时间序列通过重构相空间估算其前3阶最大的Lyapunov指数λ_1、λ_2和λ_3的算法和程序。
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     A quasi one-dimensional,time dependent compression system model based on the parallel compressor theory was used to model the dynamic flow in compressor and actuator lag-volume model was adopted to model the stage of compressor.
     压缩系统模型采用基于平行压气机理论的准一维时间相关模型方程以及激盘-滞后-容积的压气机级模型,稳定性模型则采用了对整个压缩系统统一判别的方式。
短句来源
     The one-dimensional time series is embedded into a high phase space in which the principal manifold of the dynamical system, in the form of a single global orthogonal coordinate system of low dimensionality, is identified by nonlinear dimeusionality reduction method. The final noise reduction result is achieved after averaging of phase space data which are regenerated according to the principal manifold.
     新的降噪方法将一维时间序列重构到高维相空间,利用非线性降维方法找出动力学系统在相空间中具有全域正交坐标系的低维主流形,然后根据主流形反求一维时间序列,进而达到降噪的目的。
短句来源
  one dimensional time
     Charotic attractors are reconstructed from one dimensional time series based on wavelet transform domain PCA.
     利用小波变换域主分量分解法从一维时间序重构混沌吸引子 .
短句来源
     First,one dimensional time series are embedded into a high dimensional phase space according to time-delay theory.
     首先用时间延迟方法将一维时间序列重构到高维相空间。
短句来源
     We study the one dimensional time evolution Smoluchowski Equation in describing polymeric fluid. We shows that the steady solution of the time evolution Smoluchowski Equation is a constant, which means the phase is isotropic, when there are no two modulus in the initial data.
     研究描述聚合物流体的一维时间发展Smoluchowski方程,说明当初值如果用Fourier级数展开时不含2模频率,那么其稳态解是一个常数,其对应于各项同性的相.
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      one-dimensional time
    Periodic flow regimes result as a limit of the solution of a Cauchy problem for one-dimensional time-dependent gasdynamic equations.
          
    A one-dimensional time-dependent solution of the Navier-Stokes equations is constructed analytically for the motion starting from the state of rest.
          
    The one-dimensional time-dependent problem of evaporation from a plane body surface into a half-space filled by a gas (condensed phase vapor) upon a sudden increase in the body surface temperature is studied.
          
    Asymptotic Solutions of Problems of One-Dimensional Time-Dependent Combustible Gas Flows in the Presence of Thermal Action
          
    This investigation is based on the results of hydrodynamic calculations for the model of [1] supplemented by taking into account the ionization current [2-5] and on the numerical solution of a one-dimensional time-dependent Schr?dinger equation.
          
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      one dimensional time
    This paper presents a single period, one dimensional time integral model, with which we calculate the energy exchange between the rf field and electrons in the output section of a klystron.
          
    We prove a smoothing property for one dimensional time dependent Schr?dinger equations with potentials which satisfy at infinity, k≥ 2.
          
    But the previous research on the partial similarity search was made for one dimensional time series data.
          
    In this project we will investigate methods to extend models for one dimensional time series to trajectories of moving objects.
          


    On the basis of giving a brief comment on time notion, This paper expounds that time is not the notion of one dimension in general. It also be discussed that how to set up the time coordi-nate system and other problem about coordinate system of time. It goes further into the question ofGalileo transformation and Lorentz transformation, and the question of accurate terms of timeof the founding of the special relativity. And it comes to a conclusion: In nature, There is nota long existence of physical reality...

    On the basis of giving a brief comment on time notion, This paper expounds that time is not the notion of one dimension in general. It also be discussed that how to set up the time coordi-nate system and other problem about coordinate system of time. It goes further into the question ofGalileo transformation and Lorentz transformation, and the question of accurate terms of timeof the founding of the special relativity. And it comes to a conclusion: In nature, There is nota long existence of physical reality of reference coordinate system and one dimension of time,and flat space of great scope, which may have been considered to possess a long-term existencebefore.

    本文在简要评述时间概念的基础上,论述了时间一般不是一维的概念。讨论了如何建立时间坐标系;时间坐标系中的时间曲线;时—空坐标系的结合型式;以及在一级时间坐标系中的两相对运转的空间坐标系之间的坐标变换公式。进而讨论了伽利略变换与洛仑兹变换,以及狭义相对论精确成立的时间条件。并得出结论:在大自然中具有物理实在的,可能长时间存在的惯性坐标系和一维时间,以及大范围的平直空间,是不存在的。

    This paper reports a method of chaos and fractal for a study of the auditory evoked potential of the brain stem. The results of one-dimensional time-amplitude, frequency-amplitude and phase-space curve reconstructed in time series were obtained from the scalp electrodes in different brain states. Algorithms of correlation dimension are used to obtain the fractal dimension of the time serial in different states before, during and after the exercise. The result shows that the dimension during exercise is lower...

    This paper reports a method of chaos and fractal for a study of the auditory evoked potential of the brain stem. The results of one-dimensional time-amplitude, frequency-amplitude and phase-space curve reconstructed in time series were obtained from the scalp electrodes in different brain states. Algorithms of correlation dimension are used to obtain the fractal dimension of the time serial in different states before, during and after the exercise. The result shows that the dimension during exercise is lower than those before and after The phase-space curves are used to analyze the obvious different conditions in different brain states. The principle of the study of the EEG signal with chaos theory consists in that the human body is taken as a nonlinear dynamic system and the variables of the system can be described by fractal dimension.

    采用混沌动力学方法与分形方法对气功态下的诱发电位信号进行处理.给出了受试者在接受声音刺激后,在其头皮上所获取的不同脑功能状态下的一维时间一幅值响应和频率响应以及由时间序列重构的相空间曲线.实验结果发现脑功能的改变将引起其分形维数的变化.

    The time-dependent equations of the phase space state variables are obtained,as-suming that the linear and quadratic nonlinear terms are contained in the system,by us-ing the phase space continuation of the 1-D time series of monthly mean temperature,and followed by the fitting of the treated data.In order to reconstruct the related dy-namic system,the coefficients of equations must be found by use of the least squaremethod with the terms of greater variance contribution retained.The results show thatthe obtained...

    The time-dependent equations of the phase space state variables are obtained,as-suming that the linear and quadratic nonlinear terms are contained in the system,by us-ing the phase space continuation of the 1-D time series of monthly mean temperature,and followed by the fitting of the treated data.In order to reconstruct the related dy-namic system,the coefficients of equations must be found by use of the least squaremethod with the terms of greater variance contribution retained.The results show thatthe obtained low-order system is likely to describe the nonlinear properties in the short-range climate variation characterized by monthly mean temperature.

    通过对月平均气温一维时间序列作相空间拓展,和假定相空间状态变量随时间的演化方程含有线性和非线性二次项,再根据拓展后的资料进行拟合,利用最小二乘法求出各项系数,保留其方差贡献大的项,以重建动力系统.实际计算结果表明,重建的低阶动力系统有可能对月平均气温所表征的短期气候演化过程的非线性特性作出描写.

     
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