查询词典 multiple correlation coefficient

Assuming that the temperature distribution close to the concrete surface is the quadratic function of the coordinate, the back-analysis equations of thermal conductivity, heat transfer coefficient and absorption coefficient of solar radiation are derived based on one dimension Fourier equation of heat conduction and thermal boundary conditions.

为了选取更接近实际的热工参数，采用试验和反演分析相结合的方法，计算影响日照条件下混凝土结构温度场和温度效应分析结果的热工参数。

The result indicates that, under the same condition of vegetation density and arrangement, when F is smaller than 12.2371, the vegetation behaves absolute erectness and the vegetation roughness coefficient and drag coefficient have no relation with F.

试验结果表明，淹没植被在植被密度和排列方式相同的情况下，若植被抗弯指数F值小于12.2371，植被呈完全刚性，植被糙率系数和阻力系数与F值无关。

During the training of the neural network, the influence, which is caused by the various network parameters, on the error function is discussed emphatically and the traditional BP algorithm is improved by importing the weight coefficient βand error function coefficient α.

在神经网络的训练过程中，在快速BP算法的基础上做了一些有效的改进，如：引入权值系数β，选取相应的误差函数系数α等。

As shown by the experimental results, the calibration method is very effecting, easy to judge the error of LINS caused by each coefficient in its error model and the effectiveness of error coefficient compensation.

实验研究结果表明，作者提出的校准方法效果明显，容易判断每一项误差系数在LINS中对导航信号精度的影响及补偿效果，整个校准过程的时间h，适合工程上使用。

According to different seasons and different synoptic situations, the accommodation function of complex error coefficient and raising dust coefficient is added to this model system and various numerical simulation experiments are made.

该文针对CAPPS在太原市运行的误差问题，在分析其主要原因的基础上，变换地形背景场，依据不同季节、不同天气形势，在模式中增加对综合误差系数和扬尘系数的调节功能，进行多种数值模拟试验。

In the text, differential coefficient method and numerical value differential coefficient method have been introduced for crank slide block machine accuracy analysis, and influence of the fitting clearance of moving pair to component moving error has been given.

文章介绍了微分法及数值微分法曲柄滑块机构精度分析，说明了运动副的配合间隙对构件运动误差的影响。

In order to find out completely the soil-wheat contaiminated by heavy metals in Tianjin sewage farm, we collect samples on the dry land and examinate contents of heavy metals in soil-wheat system. Firstly, the anthor evaluates that soil irrigated by sewage that has been contaminated slightly, the main polluting factors are Cd and Zn, and then the anthor evaluates soil according to different regions, soil types and irrigating water. Secondly, the anthor analyzes content and enrichment ability of heavy metals in different part of wheat, evaluates wheat is contaiminated by Cd widespreadly, only few samples polluted by Zn.Finally the anthor put up correlative analysis about heavy metal contents in the soil-wheat system, as well as plant enrichment coefficient and some physico-chemical properties of soil, and establishes a prognostic model about heavy metal content among wheat spike, soil, soil types, PH, organic matter and salinity with the quantifying theory.The prognostic accuracy of primarily contaminative factors is the best with compound correlative coefficient examining, the model can be founded.With improvement of living level, people need cleaner food.

为全面了解天津市污灌区农产品生产地土壤和旱地作物小麦的重金属污染状况，我们于2004～2005年对全市污灌区的土壤和小麦进行了采样，在对该区土壤—小麦系统中六种重金属元素(Cd、Cu、Pb、Zn、Cr和Ni)的含量进行检测的基础上，本文首先分析评价了污灌区农田土壤的环境质量总体已达到了轻度污染水平，主要的污染因子是Cd和Zn，同时对污灌区农田土壤分区县、土壤类型和不同灌水类型进行了评价；然后分析了重金属在小麦不同部位的含量与富集能力，评价了污灌区旱地作物小麦普遍遭受了Cd的污染，只有个别样点遭受了Zn的污染；最后对土壤—小麦系统重金属含量间以及植物富集系数与土壤部分理化性质间进行了相关分析，由于土壤类型是定性变量，本论文以数量化理论建立了小麦穗实中重金属含量与土壤中重金属全量、土壤类型、PH值、有机质和全盐量间的预测模型，经复相关系数检验，污灌区主要的污染因子Cd和Zn的预测精度最高，模型可以成立。

Al-1%Si alloy is adapt to make molectron manufacture bonding wire with good fluidness ,small expansile coefficient, contractive coefficient, resistance of corrupt and good welding capability.

Al-1％Si合金具有较好的流动性，小的线膨胀系数，小的铸造收缩率和优良的抗腐蚀性能与焊接性能，所以已成为制造集成电路键合线的优选材料。

In this thesis,the influence of thermal expansional coefficient on the self-lubricating ability of the sweating composites at high temperature is investigated based on the prediction of composites thermal expansional coefficient.

并通过实验验证了该算式结果的准确性，由于该计算式形式简单，因此具有很好的工程应用性；同时，由于该算式不必区分增强相和基体相，这在一些无法区分二者的情况下，保证了结果的准确性。

It is demonstrated that the error of thermal deformation with mean coefficient of linear thermal expansion is more high, so that it is certain trend to use immediate thermal expansivity instead of mean coefficient of linear thermal expansion to improve the instruments accuracy in precision engineering.

理论上建立了平均线膨胀系数同瞬间线膨胀系数计算热变形的误差数学模型，并通过实验论述了精密工程应用中使用平均线膨胀系数计算的工件热变形误差较大，提出广泛使用瞬间热膨胀系数替代平均线膨胀系数是提高机器设备精度的发展趋势。

Pachomius manual labour was organized as an essential part of the monastic life; and since it is a principle of the monks as distinguished from the mendicants, that the body shall be self-supporting, external work of one sort or another has been an inevitable part of the life ever since.

根据圣pachomius体力劳动组织作为一个重要组成部分寺院生活；以来，这是一个原则的和尚，作为有别于乞丐，该机构应自支撑，对外工作的这种或那种已一个必然的一部分，生活至今。

In order to study the effects of parametrical rolling on the ship movement and tilts, in allusion to ship's navigating in regular following waves, the equation of ship rolling motion is transformed into normal Mathieu equation by proper variable replacement when strong parametrical excitation in restoring moment varied according to sine or cosine wave.

为研究参数横摇对船舶运动和倾覆的影响，通过对船在规则波上随浪航行时，恢复力矩中出现的1个以正余弦规律变化的强参数激励项进行适当的变量置换，将船舶的横摇运动方程转换成标准形式的Mathieu方程。