查询词典 mean square

The observational and calculated results are well matched. The calculated mean diameter, mean square-root diameter, mean cube -root diameter and liquid water content are all well matched with the observational results; In the paper two examples have been analyzed by using the seeding region data and the possible affecting region data in leeward region. It is found that F-100, 2dc, and 2dp's particle concentrations increase in leeward region, but rising extent is different, which is likely to be due to difference of seeding effect time.

拟合值和观测值吻合的较好，计算出的平均直径、均方根直径、均立方根直径和粒子浓度与观测值也比较吻合；本文对两组个例的催化影响区域及可能采集到相应值的下风方区域进行了分析，催化下风向影响区的F-100、2DC、2DP的粒子浓度比背景值都有所增加，但是增加的幅度不同，应该是催化响应时间的原因。

In this beamline, with the neutron depolarization technique, provides information of the mean domain size, the mean square direction cosine of the magnetic induction in the domains, and the mean magnetization of a magnetic sample.

三维去极化中子仪主要为观察极化中子通过磁性材过程，受到内部磁区的扰动使得极化中子向的方向和大小改变，进分析后可以观察出材内部平均磁区大小、平均感应磁场强、磁区平均方向余弦的平方。

The simulation result shows that this dynamical prediction model has the performances like, better generalization, stronger robust, and preferable accuracy (the relative root mean square error of air is lower than 10%, and the relative root mean square error of oxygen is lower than 19%).

仿真研究结果表明：该动态预估模型具有较好的泛化能力和较强的鲁棒性，并具有较好预测精度(风量预测的相对均方根误差小于10%，氧量预测的相对均方根误差小于19%)。

It was found that the predicted results of the mathematic model are good when the number of samples is 15 in calibration model and that in validation model is 6 (the total is 21) In that case, the value of the root mean square error of the estimation of calibration and the root mean square error of prediction of validation are very small(0.0115 and 0.0105 respectively) and almost the same.

结果发现，当校正集样品数为15检验集样品数为6（总样品数为21）时，使用外部检验法建立的数学模型预测结果较好，其校正集的均方根误差和检验集的预测均方根误差（分别为RMSEE和RMSEP）均较小（分别为0.0115和0.0105），而且很接近。

In this article, the effect on the surface topography of the same material was analyzed by different processing methods, the value of surface parameter arithmetic mean Ra, rootmean-square roughness Rq and gradient root-mean-square value Zq were used to appreciate the surface topography, and the data were processed with the software Matlab.

分析不同加工方法对同一种材料表面形貌的影响，采用表面形貌统计参数中的轮廓高度算术平均值Ra轮廓高度均方根值Rq、坡度均方根值乙对表面形貌进行评价。

In Chapter 3 Firstly, the exponential stability in mean square and almost sure exponential stability for neutral stochstic neural networks with time-varying delay can be discussed by using the linear matrix inequality and the semimartingale convergence theorem; And our sufficient conditions are less conserative; Secondly, by utilizing the fixed point theorem, some sufficient and necessary conditions ensuring the asymp- totic stability in mean square for neutral stochastic neural networks with time-varying delays can be given.

第三章首先，利用线性矩阵不等式方法和半鞅收敛定理，考虑了一类具变时滞中立型随机神经网络的二阶矩指数稳定性和几乎必然指数稳定性，所得到的条件保守性要好；其次，采用不动点方法，给出了具变时滞中立型随机神经网络的二阶矩渐近稳定性的充要条件。

In the study of the stochastic chaos in simple pendulum, the random Melnikov process is derived and the mean-square criterion is used to determine the threshold amplitude of the bounded noise excitation for the onset of the chaos or random chaos in the system. For the coupled simple pendulum and harmonic oscillator, the Melnikov function is used to determine the condition for the onset of chaos in the case of Hamiltonian perturbations. In the case of non-Hamiltonian perturbation, the generalized random Melnikov process and mean-square criterion are used to determine the threshold amplitude of the bounded noise for the onset of random chaos.

在随机混沌研究中，应用随机Melnikov过程的均方准则研究了单摆在有界噪声激励下发生混沌或随机混沌时有界噪声激励的临界幅值；对于耦合的单摆-谐振子系统，先用Melnikov函数研究了在哈密顿扰动下发生混沌的必要条件；然后用推广的随机Melnikov过程方法研究了在非哈密顿扰动下发生随机混沌的必要条件；用最大Lyapunov指数及Poincaré截面方法结果与上述理论结果作了对比。

Using minimum mean square error criterion at receiver, the mean square error matrix submits to inverse wishart distribution at high signal to noise ratio.

当接收端使用最小均方误差准则检测时，检测后的MSE矩阵在高信噪比下服从逆wishart分布。

Ting and fusing Global texture relighting and fusing includes global relighting of multiple textures based on least mean-square error, global color correction of multiple textures based on least mean-square error, and weighted fusing of multiple overlapped textures.

3全局纹理重光照与细节融合技术研究基于最小均方差的多幅纹理全局亮度校正和色度校正技术、多幅重叠纹理加权融合技术。

In view of the performance of the spreading sequences for spread～spectrum communication system, the performances on auto～correlation, cross～correlation, even and odd cross～correlation, mean square root of auto～correlation's side～lobe, mean square root of cross～correlation and balance of the new sequences were analyzed.

对一种新型的渐进理想的混沌映射模式，从扩频通信对扩频序列的要求出发，详细分析了该映射产生的混沌序列的自相关、互相关特性，偶互相关、奇互相关特性，以及自相关旁瓣均方根\，互相关均方根和平衡性。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。