查询词典 multistep

This paper is to mainly discuss the following problems which are diffieult to be solved in commodity freight volume forecast for a period of time: Variable choice and multiple coorelations; Application of the principles of combining quantitative analysis with qualitative analysis; Selection of the remarkable variables by using Multistep Regression Method; Establishment of reasonable freight volume forecast model.

本文针对总货运量预测中较难解决的问题——变量选择和多重共线性，运用定性和定量相结合原则利用逐步回归方法定量挑选显著性变量，建立理想的货运量预测模型。此外，本文在评介货流研究一般方法基础上，根据多地区货物交流目的，探讨了货流预测的方法，提出用Frator法预测货流。

The speciality to let several coefficients of S-M algorithm are analyzed;(2) We first propose the nonlinear and adaptive prediction model based on several closest neighbors and extend the method to multistep prediction;(3) We first exploit Empirical Mode Decomposition technology to predict hopping frequency codes, it is namely that a complex time series is decomposed as several Intrinsic Mode Functions easy to prediction, then predict these IMF respectively, at last reconstruct estimated values of the time series;(4) We exploit the above prediction model validate effect while there are omitted data in observed time series and propose the corresponding resolve.

1具体分析了S-M算法中几个参数设置的特点；(2)首次提出了基于邻近点的非线性自适应预测模型，同时将这种算法推广到多步预测；(3)首次采用经验模态分解技术预测跳频码，即将一个复杂难以预测的时间序列分解为几个相对容易预测的本征函数，然后分别预测这些本征函数，最后重构出时间序列的估计值；(4)应用基于邻近点的非线性自适应预测模型验证了观测时间序列存在数据缺损时的预测效果，并提出了相应的解决办法。

The theory of 0.5th order differential polarog. for multistep reversible charge transfers is proposed, and a theor. polarogram was computer simulated. The effect of both the standard potential separation DE? and the no. of electrons on polarograms is discussed.

卷积伏安法是近十年发展起来的一种新电化学分析方法，本文报导了逐级电子转移过程的0.51次微分电分析法的理论和实验结果，用计算机模拟了理论极谱图，讨论了标准分离电位和电子转移数对极谱的影响。

In the numerical calculation of the tunneling transmission probability we adopt the multistep approximation to approximate the whole potential barrier.

在电子穿隧机率的数值计算上，使用多阶近似的方式成就整个位能障的穿隧机率之计算。

Application of linear multistep methods to the delay differential equation of the form y′(t =ay +by , t≥0, y =g ,-τ≤t≤0, with a, b∈〓 and b≠a yields the recurrence relation of the form〓, where U〓∈〓 and B∈〓.

将线性多步方法应用到延迟微分方程y′=ay+by，t≥0，y=g，-τ≤t≤0，其中a，b∈〓且b≠a上，产生迭代关系式〓，其中U〓∈〓并且B∈〓。

We follow the idea of sequential estimation method of Palandri (2007) but simplify the specification to estimate the correlations with BEKK specification proposing the Sequential-BEKK model using multistep Maximum likelihood estimation procedures to estimate.

通过运用BEKK模型模拟的数据，本文比较发现，Sequential-BEKK模型在进行样本内预测相关系数矩阵时，表现优于BEKK系列模型和OGARCH模型，稍差于CCC和Dec模型，但是Sequential-BEKK能够比其他模型更好的刻画相关系数的动态过程。

Aiming at a kind of underactuated serial robots, a multistep control strategy based on its transformation of dynamics equation is proposed.

针对一类欠驱动串联机械臂，基于其动力学方程的变换，提出了一种分步控制策略。

Since protein transport is a complicated multistep process, it can be predicted that more Rab proteins exist to regulate the vesicular traffic.

细胞内的囊泡运输是一个重要而又复杂的过程，这就意味着有多种Rab蛋白参与其中的调节。

Carcinomatous changing of normal cells result from the accumulation of genetic alterations at specific chromosomal regions involving a multistep process.

正常细胞的癌变是多因素、多阶段及多基因作用的结果。

Determining the stage of colorectal cancer often requires a multimodality, multistep imaging approach.

确定结直肠癌的分期通常需要多形式、多步骤的影像手段。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。