- 更多网络例句与数据并合相关的网络例句 [注：此内容来源于网络，仅供参考]
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This study consists of three parts. Firstly the equivalently accelerative corrosive environment is determined through the analysis of statistic data of corrosion environment. Secondly the fatigue test is carried out under the constant amplitude cyclic loading for the specimens which are exposed in the corrosive environment for equivalent calendar time of zero year, 3 years, 8 years and 13 years. Four S-N curves with different corrosive time are obtained based on the fatigue experiment. Finally the regression method of S-N curves for experimental data is researched and a weighted least square fit is put forward in which the weigh of a group of test data is inversely proportional to the length of the confidence interval.
进行了以下几个方面的工作：(1)通过实测、统计、分析得到了当量加速环境谱；(2)完成了在当量加速环境谱下预腐蚀日历年限0年、3年、8年和13年的腐蚀试验，并进行了成组常幅疲劳试验，得到了不同预腐蚀年限下的S-N曲线；(3)进行预腐蚀后的S-N曲线的数据拟合方法的研究，提出了考虑置信区间长度影响的加权最小二乘法。
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Firstly, using quadric surface to fit with given surface and calculate the error metric to identify free surface and general quadric surface.
首先用一般二次曲面方程拟合测量数据并计算曲面的拟合误差，比较拟合误差与阈值的大小来识别自由曲面和一般二次曲面。
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This thesis introduces the basic principle of the least square data fitting.. According to the least square data fitting ,the paper studies and analyzes the linear least square fitting ,the quantic least square fitting and nonlinear least square fitting respectively . By using the mathimatic instrument Matlab , this paper shows a lot of examples of interrelated questions. Using Matlab makes the theory of data fitting easier to be understood.
本文介绍了最小二乘数据拟合法的基本原理，并根据最小二乘数据拟合方法，分别针对线性最小二乘拟合、多项式最小二乘拟合，非线性最小二乘拟合（lsqcurvefit、nlinfit、lsqnonlin、以及非线性的线性化）、多元最小二乘拟合进行了分析和研究，并通过数学工具Matlab实现了对相关问题的举例应用，使相关数据拟合理论更加生动易懂。
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At first, on the basis of the sufficient and necessary optimality conditions, we give a certain algorithm to compute the trust region subproblem; then, we draw out a different scheme for parameter vector in CIM.
在分析子问题最优性条件的基础上，我们给出了锥函数模型信赖域子问题的求解算法；并从数据拟合的角度提出了对锥模型中参数向量的另外一种选择方案。
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The yield curve in q direction in π plane is obtained from the routine triaxial test data.
首次提出了如何应用试验数据拟合屈服条件的思路与方法，并编制了相应程序。
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By studying and summing up the common failure physical models and combining with the quantum mechanics theory on the relationship between the electronic equipment aging reaction rate and tempreture-humidity,a hygrothermal aging life model for solid propellant storage and usage is established with the propellant mechanical properties as the research object.
通过对常用失效物理模型的分析和总结，结合量子力学理论关于电子产品老化反应速率与环境温、湿度的关系，以推进剂力学性能参数为研究对象，建立了固体推进剂贮存使用寿命的湿热老化模型，并通过试验数据拟合得到具体的经验公式。
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A modified aerial image was obtained by convolving the aerial image with a Gaussian filter to smear the image in a manner analogous to resistive diffusion, and then applying a variable threshold resist model on the modified image to predict the CD variations.
用高斯滤波器与空间影像进行卷积，得到改进的空间影像来模拟光刻胶的扩散，然后使用可变阈值光刻胶模型，以实际工艺数据拟合该模型参数，再把改进空间影像的相关信息作为输入，并根据可变阈值光刻胶模型所确定的光强阈值来预测CD变化，从而使光刻仿真的结果更精确地附合实际测量数据。
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Then the surface reconstruction that includes data fitting and fairing technology is studied mainly and many fitting methods are analyzed in all respects, including compare their advantages and disadvantages, At last some reasonable methods are selected and is used in cams reverse engineering that are parts of cigarette machine at high speed, At the same time the precision of the reverse result is analyzed in detail.
然后对曲线曲面重构即数据拟合及光顺技术这一关键技术做了重点研究，从不同角度研究了多种拟合方法，比较了它们的优缺点，选择了比较合理的拟合方法对高速卷烟机上的凸轮进行反求，并对反求结果进行了详细的精度分析。
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The main results are:(1) The cumulate cause-effects model was demonstrated at both macro and micro level data. The problem of data fitting of hypertension prevalence data was solved well enough with the cumulate cause-effects model. The parameters of the model were meaningful for the practice.(2) Taking the hypertension developing speed as an indicator of health equality of hypertension between urban and rural residents in China and discovered the macro level determinants of it.(3) The causal network was testified by the structure equation model.(4) It is found that the major determinants of hypertension prevalence in China is population ageing, overweight, lifestyle changing due to high economic developing speed and the lagging behind of health education.
主要的研究成果有：(1)首次观测到我国高血压的患病率曲线符合累积风险效应模型，解决了高血压患病率资料数据拟合中长期存在的方法学问题，并对模型中参数的实际流行病学意义给出了合理的解释，能够对疾病的发病率进行间接的估计；(2)提出了用高血压的发展速度作为衡量我国城乡高血压造成的健康不平等的重要指标，解决了我国高血压患病率评价中长期存在的一些错误性认识，揭示了我国高血压城乡发展不平衡的宏观决定因素；(3)利用结构方程模型对构建的网络模型进行拟合分析，证明了模型的有效性；(4)揭示了目前影响我国高血压发展趋势的决定因素，主要包括人口老龄化趋势加剧、超重人口比例增加、经济的快速发展带来生活方式的转变和健康教育的相对滞后等几个方面。
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Since geostationary satellite s orbit inclination is equal to zero approximately,it will result in the ambiguity of satellite s orbit ascending node and the singularity of the normal matrix in the process of fitting.
针对静止轨道卫星轨道倾角近似为0，致使卫星轨道的升交点定义模糊，在数据拟合过程中会导致法矩阵奇异的问题，提出对卫星轨道进行轨道倾角变换拟合广播星历参数的方法，并获得较高的拟合精度。
- 更多网络解释与数据并合相关的网络解释 [注：此内容来源于网络，仅供参考]
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Curve Estimation：曲线拟合
这样每天的"累计SARS确诊病例数"都换算成相应的占这一上限数量的百分比形式. 最后,我们利用SPSS中有关曲线拟合(curve estimation)功能,来确定有关函数模型中各参数的值,并同时得到模型能够解释的观察数据的变异量百分比.
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logistic curve：逻辑斯谛曲线
本文运用灰色系统中的GM(1,1)预测模型与逻辑斯谛曲线(Logistic Curve)预测模型,对近年来数字图书馆研究文献量的统计数据进行拟合预测,并结合实例对两种预测模型的预测结果进行对比分析,确定出了逻辑斯谛曲线是适合数字图书馆研究的预测模型.
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ordinal scale：顺序量表
数据类型 绝大部份分析基于皮尔逊(Pearson)相关来自等级(顺序)量表(ordinal scale),改用多项(polyserial)相关系数,并与渐近方差矩阵(asymptotical covariance matrix,ACM)合用,以WLS法拟合模型,除非N很大,额外需要的ACM矩阵多不稳定
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postural drainage：体位引流
体位引流(postural drainage)是指对分泌物的重力引流,应配合使用一些胸部手法治疗. 如拍背、振颤等,多能获得明显的临床效果. 治疗者可参照X线胸片跟踪肺内分泌物的方法,并通过血气分析监测肺内分泌物清除效果,提供氧合的客观数据.