查询词典 computation errors

And the computation of pseudo-random numbers was programmed by multiplying the congruent number with the APDL language used. Taking account of the effects of original errors resulting from manufacture and the different working conditions such as rotating speed and load on the dynamic property of a bearing, the K-S inspection was done to determine the distribution of the data resulting from the virtual test and, consequently, the reliability was calculated with respect to the fatigue failure of bearings.

在此基础上，运用APDL语言实现乘同余数法产生伪随机数的计算程序，综合考虑轴承原始制造误差以及转速、载荷等不同工况对轴承动态性能的影响，对轴承进行多次随机虚拟试验，运用K-S检验法确定所获得的实验数据分布，求取轴承疲劳失效的可靠度。

The cause of computation errors is discu ssed in this paper.In order to correct it, a new model of differentiable nonsin gular strength envelope function is proposed.

本文详细地分析了产生误差的原因，在此基础上，建立了光滑强度包络线计算模型，较好地解决了这一问题。

The computation results show a good effect and give a reduction of errors.

计算结果表明，计算公式计算效果良好，有效的减少了计算中的误差。

As an application example,numerical calculation was performed for partially coherent modified Bessel-Gaussian beams propagating in free space with hard-edge aperture,and the computation errors and application ranges of those analytical equations were discussed.

以部分相干修正贝塞尔－高斯光束在有光阑情况下自由空间的传输为例作了数值计算，对所得解析公式的计算误差和适用范围进行了讨论。

The computational results show that the assumptions of incompressible water and massless foundation can considerably simplify the complexity of equations and cut the amount of computation, but cause little errors.

计算结果分析表明：在高拱坝流固耦合动力分析中，水体不可压缩和无质量地基假定可显著地消减方程复杂度和计算工作量，但带来的数值误差较小。

In this paper,the basic theory of precision estimation about lateral piercing errors in the GPS network of railway tunnel has been discussed. According to the theory, the software for computation has been made and tested with data.

探讨了隧道GPS网在设计阶段估算横向贯通误差的基本理论，对按该理论编制的软件进行了计算正确性的验证。

For the measuring algorithm of the electrical parameters, it was emphasized to discuss the measuring computation of reactive power in three-phase circuits, and the author theoretically deducted its measuring errors in both nonsinusoidal waveform circuits and three-phase unbalanced load systems in this paper.

对于电参量的测量计算，本文着重论述了三相电路无功功率的测量计算，并就三相电路非正弦不对称的情况下无功功率的测量计算进行了理论推导。

In degraded PSM matching classification, errors modification method of degraded PSM is presented and the matching tensor of every canonical scattering centers is given. In Chapter 4, the theory of wideband millimeter-wave radar target identification is introduced. It is indicated that, for HR radar target identification, description of temoral relations among features and pattern recogntion adaptive to variation of target angles are of key importance. A rule-based pattern recogniton method of sequential reasoning is proposed, which uses a series of rules to describe relations of features variation caused by target angles variation and has the advantages of adaption to unrandom variation and false probability control in classification over traditional statistical pattern recognitiop method. Feature extraction is crucial step in target identification. In range profiles identification application, features are extracted by means of range domain pre-processing algorithm, spacial and amplitude visual computation directly from range profiles and transform algorithm based on range profiles. Visual or transformed features are either sufficiently convinced or necessarily convinced and both of them are effective and robust to range profiles identification.

在第四章，首先对宽带毫米波体制背景下目标识别方法的一些特点进行了阐述并指出，在毫米波雷达目标识别中，特征之间动态关系的描述以及能适应目标姿态角变化的模式识别方法的研究乃是要解决的关键问题；进而提出了一种基于规则库的序贯推理模式识别新方法，在这种方法的研究中，主要包括序贯推理规则库的规则排列与特征选用顺序以及规则库的收敛等问题；这种方法克服了传统的统计模式识别方法特征利用效率不高、难以适应特征值的非随机性变化的缺点，把姿态角变化所引起的特征的变化用一系列规则加以表示，其优点是能适应特征值的非随机性动态变化，并能控制分类过程中的差错概率α；特征抽取是目标识别中的关键步骤，在基于目标距离像的特征抽取方法研究中，提出了距离空间域的预处理算法、距离空间域与幅度域的直观特征抽取方法以及基于目标距离像变换分析的特征抽取方法。

A character-codes model based pattern recognition method by using amplitude data of targets frequency response is proposed after the establishment of high frequency response equation of radar targets. The method uses the same unvariant character-codes to express the same target of different angles and uses sequential separating of regions of target's reference variables to obtain multiple coding vectors of all regions for every target. The category and pose of target can be determined after a two-staged classification processing such as coding processing of target range profile data and errors correcting processing of coded data. The two-stage classification results are used to target identification as posterior hypothesis to be tested by sufficient convincing and necessary convincing. The character-codes model based pattern recognition method is also adaptive to variation of target angles and controllable in error probability. Time-consuming and complicated iterative computation is not necessary in the train process of pattern recognition.

首先建立了雷达目标的高频频率响应方程，这种方程将目标多散射中心理论与目标局部谐振理论有机地结合起来；进而提出了目标多频响应结构成像方法，这种方法将瑞利区频率响应或谐振区频率响应曲线的不同部位用各种不同的近似方法去逼近，通过特征谱估计方法将目标的局部频响特征与宽带距离响应特征结合起来；然后提出了一种基于姿态角变化区域的序贯划分与多模匹配的特征编码识别方法，这种方法具有能适应目标姿态角的变化以及能控制识别的差错概率α等优点，在目标识别时只需要目标在少数有限个频率激励下的幅频响应数据。

The combined discrete-continuum model overcomes the lack and annihilates the error in continuum methods. In addition, the computation of the short-range solute-solvent interaction also causes errors. Therefore a high-level quantum calculation is necessary.IV(4) This model can also provide insight into many fundamental details where cluster model and continuum model fail to provide unique pictures.

4，离散一连续组合模型的价值还在于其把溶剂效应分解为短程作用和长程作用，对于一些分子簇模型以及传统连续介质模型不能解释的现象给出更清晰的图像。

Fostering the concept of multi-culture firmly and mastering the development of advanced culture correctly are conductive to resisting terrorism, separatism of nationalities and ultraism of religion, which is of great academic theoretical, immediate and profound historical si...

牢固树立多元文化的理念和正确把握先进文化的发展方向，有助于在世界范围内自觉地抵制恐怖主义，民族分裂主义和宗教极端主义。不仅具有重大的学术理论意义，而且也具有重大的现实意义和深远的历史意义。

But if anyone walks in the night, he stumbles, because the light is not in him.

11：10 若在黑夜行走，就必碰跌，因为那光不在他里面。