time variability

The spatial variability of an experimental field infiltration rate is examined by using the theory of time series of dynamic analysis method.

本文应用动态数据处理方法中时间序列的理论，对一田间试验地块稳定入渗率的空间变异性进行了分析研究。

Considering the complexity and the time variability of industrial process, an adaptive Supervised Distributed Neural Networks ( SDNN) is proposed for modeling of industrial process.

针对工业生产过程的复杂性和时变性，提出一种用于工业生产过程建模的自适应监督式分布神经网络（SDNN）。

Time variability of the underwater channel requires that receiver adaptation be performed at the chip rate, rather than the symbol rate.

水声信道的时变特性要求自适应均衡器系数以码片速率更新，而不是以码元速率更新。

Analysis of pulse transit time variability based on LZ complexity

基于LZ复杂度的脉搏传播时间变异性分析

Analysis of Time Variability for Hydrological Series

水文序列的时间变异性分析

Analysis of real industrial model can not be separated effectively, and the vast majority of industrial processes is a big inertia, wide range of operating conditions, non-linear and time variability of the complex system, asked the very high-precision model.

实际工业的分析离不开有效的数学模型，而绝大多数的工业过程是具有大惯性、工况范围广及一定的非线性和时变性的复杂系统，对系统建模提出了很高的要求。

Ball mill pulverizing system has many characteristics, such as multi-variable, strong coupling, time variability, and the difficulty of establishing an effective mathematical model of dynamic process. The conventional control method is difficult to be effectively applied in the pulverizing system.

球磨机制粉系统具有多变量、强耦合、时变性，以及难以建立有效的动态过程数学模型等特点，常规的控制方法在制粉系统中难以得到有效的应用。

Then, this parameter method using the RMB exchange rate risk on the empirical measure, confirmed the RMB exchange rate fluctuations with time variability and non-normality.

然后，本文采用参数法对人民币汇率风险进行了实证度量，证实了我国人民币汇率波动具有时变性和非正态性。

Due to extent areas in medium-large basins, their erosion, transport, sediment process crisscrossed, and natural processes in basin rounded soil and water loss system became complicated, time and spatial variability of sediment yield factors enhancing.

中大流域由于流域面积很大，使得流域的侵蚀、输移、沉积过程交错，流域的这一完整的水土流失体系的自然过程复杂化，侵蚀产沙因子时间和空间的变异性很大。

Material properties are very complicated, a great time variability.

材料性质十分复杂，具有极大的时空变异性。

In view of time variability, nonlinear character, severe disturbance in bending system, for example in UC rolling mill bending system, an AFNNC ( Adaptive Fuzzy Neural Network Controller) has been developed.

⑵针对液压弯辊系统具有时变、非线性、外界干扰严重、难以建立精确数学模型的特点，以UC轧机液压弯辊系统为研究对象，构建了一种具有自适应能力的模糊神经网络控制器。

Based on the system is of the characteristics of coupling effect, the difference between two motors 'transfer functions and system parameters' time variability, the thesis proposed a synchronization control based on synchro-error feedback.

针对转台中框同步驱动系统所具有的耦合作用、两同步通道传递函数的差异等特点，提出一种基于校正的同步误差反馈的等同式同步控制方法，仿真结果表明该控制策略合理可行。

Industry of rare earth uses cascade extraction technology. It is very complex in the mechanism with characteristics of multiple variables, strong coupling, nonlinearity, time variability and time delay.

稀土工业采用的串级混合澄清槽萃取分离工艺，其机理复杂，具有多变量、强耦合、非线性、时变性以及大滞后等特点。

First, the papers presented in the electrode structure on the basis of the establishment of the mathematical model, and pointed out that the electrode system with nonlinear time variability characteristics.

首先，论文在介绍了电极构造的基础上建立了其数学模型，并指出了电极系统具有非线性及时变性的特性。

The detection performance of the matched filter with the transmitted signal as a reference signal will be degraded in an underwater acoustic channel due to the multipath effect and time variability.

由于水声信道的随机时变及多途特性，使得以发射信号作参考的匹配滤波器检测性能的下降。

The contribution of the tropical Pacific forcing to the North Atlantic interannual time scale variability is addressed by using the output of a global ocean-atmosphere coupled model namely Bergen Climate Model ( BCM) in combination with the observational data.

利用一个全球海气耦合模式（BCM），结合观测资料，讨论了热带太平洋强迫对北大西洋年际气候变率的影响。

In recent 50 years, The relations between Hadley circulation from east longitude 110 to 120 over northern hemisphere and temperature and rainfall in China have noticeable time variability on status from October to next April.

近50年来，冬半年（10月-次年4月）110-120°E范围北半球Hadley环流与我国同期的温度和降水的相关在统计上是显著的。

The prediction method is particularly important due to the randomness and time variability of the passenger traffic.

由于旅客流量的本身的随机性和时变性，预测的方法显得尤为重要。

Research on the Influence of the Hydrogeologic Parameters ′ Time Variability to the Calculation of Underground Water Unsteady Flow

水文地质参数时变性对地下水非恒定流计算的影响

Preprocessing methods for spectrum analysis of pulse transit time variability

脉搏传播时间变异性谱分析的预处理方法研究

The results show that the dynamic relationship between the volume and price is not constant, and has the sustainability and time variability, and there is a strong volatility along with the stream render in the market.

结果表明，股价和成交量间的动态相关关系并不是常数，而且具有持续性和时变性，伴随着市场信息流呈现较强的波动性。

The characteristics of cardiovascular autonomic nerve system ( ANS) modulation during exposure to three different altitudes were compared by time domain, spectral and nonlinear analysis of short-( 5 minutes) term heart rate variability ( HRV).

应用短程心率变异性（HRV）时域、频域和非线性分析法，对比进入三个不同海拔高度自主神经系统（ANS）调节功能的特点。

According to traffic control system with nonlinear characteristics of time variability and uncertainty, writing programs on the computer and using PID control.

针对系统中流量的控制具有非线性、时变性以及不确定性的特点，编写上微机程序、采用PID控制。

However, its level of automation is still lower than other industrial processes because of the complex biochemical reaction mechanism, and the features of non-linearity, time variability, model uncertainty as well as the lack of reliable sensors to be used in on-line inspection of process variables.

然而由于生化过程反应机理复杂，具有非线性、时变性、模型的不确定性等特点，以及缺乏可靠的传感器用于过程变量的在线检测等原因，其自动化水平与其它工业生产过程相比还远未成熟。

However, the complexity, nonlinearity, time variability and hysteresis quality of the stock market are the main problems we face.

然而，股票市场的复杂性、非线性、时变性和滞后性是我们面临的主要问题。

This paper presents a new fuzzy predictive control method for the MOCVD device control system set to handle the non-linearity, time variability and large delay of plant controls.

为解决金属有机化合物化学气相淀积（MOCVD）设备温度控制的非线性、时变性以及大滞后等问题，给出了一种用模糊控制和预测控制相结合的复合控制方法。

The result show that the fuzzy PID control effectively improve the system capacity, such as nonlinear, time variability and uncertainty, get better control effect.

结果表明模糊PID控制有效的提高了系统对非线性、时变性和不确定性的处理能力，控制效果更好。

Time Variability of Vegetation Concrete Fertility of on Rocky Slopes

岩质边坡植被混凝土肥力时间变异性研究

The time scale: Variability and change are regarded as two facets of the same phenomenon.

时间框架：差异和变化被认为是同一现象的两面。

The time mean vorticity variability was less important;

时间平均涡度变率的贡献次之；