So, the definition will take effect. The acceleration is as a vector, and the acceleration vector is just the derivative of a velocity vector.
有必要对加速度给出一个严格的定义,加速度,作为一个矢量,是速度的一阶导数。
Since any parallax effect depends on point of view, a vector from a point on the surface to the eye is required.
因为任何视差效果都依赖于视点,所以就需要一个从表面到视点的向量。
In this paper, a new scheme of vector quantization is described to reduce the effect of error propagation.
为了降低误差积累的影响,本文提出了一种新型的矢量量化方法。
The algorithm projects the LC- MVB weight vector onto the signal subspace, thus the effect of the noise subspace on the weight vector is reduced.
该算法把常规自适应天线相消法的权矢量向信号子空间投影,减小了噪声子空间对权矢量的影响。
By analyzing the basic influence of the "dead-time effect" acting on the output voltage of SVPWM inverter, the concept of the dead-time voltage vector is put forward in this paper.
在分析死区效应对SVPWM输出电压影响的基础上,提出死区电压矢量的概念,给出死区电压矢量的求取方法。
Analyzing degree of reliability when frame structure suffer earthquake effect, we can figure out its reliability vector and compare with traditional degree of reliability analytical method.
对框架结构体系遭受地震作用时的可靠度进行分析,计算出它的可靠性向量,并与传统的可靠度分析法作比较。
Considering the end effect and the eddy loss, it summarizes the linear induction motor modeling method based on vector control.
考虑到边缘效应和涡流损耗,总结了基于矢量控制的直线感应电机建模方法。
By analyzing the basic influence of the "dead time effect" acting on the output voltage of SVPWM inverter, the concept of the dead time voltage vector is put forward.
在分析死区效应对空间电压矢量调制输出电压影响的基础上,提出死区电压矢量的概念,给出死区电压矢量的求取方法。
During a modulation period, several dead voltage vectors were synthesized. Using the control software, the reference voltage space vector could be corrected. Thus the dead-time effect was eliminated.
在一个调制周期内,可预先求出几个死区电压矢量的合成矢量,用控制软件的方法实现对参考空间电压矢量的校正,从而消除死区效应。
To conclude a sparse solution, we present an improved algorithm for Least Squares Support Vector Machines, and prove its effect by an experiment.
对原有的最小二乘支持向量机在稀疏性上进行了改进,并通过实验,对改进后的最小二乘支持向量机的分类效果进行了验证。
AIM: to construct plasmid vector of RNA interference specific for matrix metalloproteinases (MMP) -9 and observe the silencing effect on gene expression of MMP-9 in macrophage of mice.
目的:构建基质金属蛋白酶9靶向的RNA干扰质粒载体,观察其对小鼠巨噬细胞基质金属蛋白酶9基因表达的沉默作用。
Aimed at dead time effect of voltage-fed space vector pulse width modulation (SVPWM) inverter, a novel compensation method detecting current polarities from the current vector was presented.
针对电压源型空间矢量脉宽调制逆变器的死区效应,提出了一种根据电流矢量判断电流极性的死区补偿方法。
For the control of AC induction motor, the vector control is the best mature way to control motor. But the control effect of vector control depends on the motor parameter.
对于交流感应电动机控制技术,现在应用较为成熟的技术是转子磁场定向矢量控制,而该方法控制效果的好坏取决于其所使用电动机参数准确性。
The axial dispersion in chromatography models was discussed with vector method and the effect of diffusion on the bulk flow flux with its partial quantity form was pointed too.
用矢量方法讨论了色谱模型中的轴向扩散项,指出轴向扩散项是扩散通量以分量的形式在主体流动通量上的页献。
According to the analysis of ac vector diagram, the effect of the mutual inductance among the traction windings on the control (performance) of the 4qc is discussed.
通过四象限变流器交流侧矢量图的分析,阐述牵引绕组间的互感对四象限变流器控制性能的影响。
As an effect tool of pattern recognition and data processing, rough set theory (RST) and support vector machine (SVM) have become the focus of research in machine learning.
粗糙集理论(rst)与支持向量机(SVM)作为模式识别,数据处理的有效工具,已成为机器学习的研究热点。
The result indicated that, support vector machine not only to be allowed to forecast indexes trend more accurately. It also has the very good effect regarding the stock price forecast.
结果表明,支持向量机方法不但可以较准确的预测大盘的走势,而且对于个股股价的预测也具有很好的效果。
In order to study the effect of non-uniformity of fluid motion on determination of the velocity vector at an interrogation spot, five typical non-uniform factors are discussed.
为了研究流体运动的不均匀性对于一个诊断区内速度矢量测量结果的影响,针对五种典型的不均匀性进行讨论。
Experimental result shows that this method is more effective than the existing global motion vector compensation, it has better compensation effect.
实验结果表明,与现有的全局运动矢量补偿相比,该方法可以获得更好的补偿效果。
AIM: to study the effect of calcitonin gene related peptide (CGRP) on contraction and relaxation of iliac artery transduced with CGRP gene by retrovirus vector.
目的:探讨降钙素基因相关肽(CGRP)基因转导兔动脉内膜对其舒缩功能的影响。
M1 and M2 indirectly effect the stock market through GDP but no transmition mechanism is formed stock market is a weakly exogenous variable in the cointegration vector.
M2均通过GDP对股市产生间接影响,但没有形成利率传导机制,我国股市是关于协整向量的弱外生变量。
AIM: to construct eukaryotic expression vector carrying human antisense VEGF gene and to study its effect on VEGF expression and growth of renal cell carcinoma.
目的:构建反义vegf基因真核表达载体,研究其对肾癌细胞VEGF表达的影响。
The paper introduces deburr algorithm before line trace in the course of vector quantization of binary map image, and it can receive better effect through applying for the algorithm.
介绍对二值地图图像矢量化过程中的线跟踪操作之前的去毛刺算法,应用此算法可以得到更好的线跟踪效果。
The results show that the effect of alternate load on surface residual stress relaxation of aluminum alloy plate mainly depends on the vector superposition of load stress and residual stress;
结果表明:交变载荷对铝合金板表面残余应力松弛的影响主要取决于加载应力与残余应力的矢量叠加;
In this paper, the structure of vector autoregressive (SVAR) model is used to investigate the dynamic impact effect of international oil price fluctuation on China's macroeconomy.
本文首次运用结构向量自回归(SVAR)模型,研究了国际油价波动对我国宏观经济所产生的动态冲击效应。
Taking the data acquired by box array, the suppressing effect of different 3-d vector combinations was compared, and the favorable geophone combination was optimized.
以方形阵列采集的数据为基础,对比了不同三维矢量组合方式压制抽油机噪声的效果。
In this paper, the signal processing methods are introduced to improve the effect of display by regarding surface vectors as discrete vector signals and implementing low-pass filtering on them.
本部分研究通过把表面法矢量视为离散矢量信号,引入信号处理中滤波器的方法来平滑表面法矢量。
Conclusion: Recombinant expression vector PGL3-DF3-DTA could produce specific lethal effect on human breast cancer cell line of DF3 positive.
结论:重组表达载体PGL3 - DF 3 - DTA能对DF 3阳性的乳腺癌细胞产生特异性杀伤作用。
Objective to construct antisense and sense vimentin retrovirus vector for investigating the effect of vimentin on reactive gliosis.
目的构建反义及正义波形蛋白重组逆转录病毒载体,研究波形蛋白在反应性胶质化中的功能与作用。
The stability of time-delay and time-varying large scale systems with impulsive effect is investigated by means of the comparison principle and vector Lyapunov function with discontinuous derivative.
运用比较原理和导数不连续的李雅普诺夫函数,结合分解集结等方法,研究具有滞后的测度型线性时变脉冲扰动大系统的全局指数稳定性。
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