拟线性的
- 与 拟线性的 相关的网络例句 [注:此内容来源于网络,仅供参考]
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After achieving the solution of the mathematical model,a binomial productivity equation of gas-water well with two-phase flow in formation was derived in consideration of the influence of formation damage and non-Darcy effect,thus establishing the theory of transient inflow performance relationship curve of gas-water well.
文章基于质量守恒原理,建立了气水两相地层瞬态渗流的数学模型,通过定义气水两相拟压力函数,将渗流数学模型线性化,在获得数学模型解后,考虑地层损害和非达西效应的影响,推导出在地层中为水气两相渗流的气水同产井的二项式产能方程,从而建立了气水同产井瞬态流入动态关系曲线的理论。
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Among the 10 descriptors, the coplanarity of three phenyl substituents with the imidazole ring, the hydrogen-bond acceptance, the molecular weight and logP are the most important factors for the modulation efficacy.
借助半经验分子轨道法AM1和从头计算法RHF/6-31G计算得到分子的多种描述因子,采用多元线性回归方法进行了结构药效分析,基于分子的结构参数、接受氢键的能力、脂水分配系数等对药物分子半有效剂量的影响提出一套拟合效果比较理想的构效关系方程,其复相关系数和标准偏差分别为0.897和0.323。
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In this paper, the stationary and non-stationary random wind-induced response, dynamic reliability and optimization under the dynamic reliability constraint of structures with foundation rotation and tall building with TMD or TLD is studied systematically. Three achievements are gained. 1. According to the situation that Davenport wind spectrum is irrational fraction, the equivalent wind spectrum is generated by linear filtered process.
本文对基础转动结构、带TMD或TLD结构的高层建筑和高耸结构的平稳与非平稳随机风振响应、动力可靠性分析以及基于动力可靠性约束的优化设计方法进行了系统的研究,取得了以下成果:1、针对Davenport脉动风谱为非有理分式风谱,通过线性滤波过程和三参数拟合,生成了与Davenport风谱等效的脉动风谱。
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Systemic studies environment temperature how to influence construction control, finds out linear regularity and function formula of the arch rib, selects optimal closure time, then fully meets requirements of closure precision and linear. By testing a lot of data on temperature and strain and adopting least squares collocation, this dissertation deduces the strain calculate formula that is amended by joining temperature factor, then improves accuracy of stresses testing data.
系统地研究外界温度变化对施工监控的影响,找出了拱肋变化的线性规律和函数式,选择出最佳合龙时机,保证了拱肋的合龙精度和线形要求;测试了大量温度与应力对应关系的实验数据,采用最小二乘拟合推估法,推导出温度修正后的应变计算公式,从而提高了应力测试数据的准确性。
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For the original infinite dimensional problem, if the inexact quasi-newton method with Broyden updating can not converge quickly , for example, it can not attain super linear convergence rate , then when the discretization is becoming finer and finer , we can not get fast convergence rate for the corresponding finite dimensional problem.
对于原来的无限维问题,如果使用不精确Broyden方法不能得到较快的收敛速度,比如超线性收敛性,那么当离散化逐渐加细的时候,对于所得的有限维问题使用不精确Broyden方法也不可能得到较快的收敛速度,所以有必要在无穷维空间上对收敛性问题加以分析,从而为不精确拟牛顿法结合投影法求解算子方程做好准备。
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The approach first chooses three continuous data points in turn when the data points in time series are scanned. According to the angle formed by these three data and the extreme value in monotone sequence, the method then records key points reflecting the sequences changing feature.
该算法在扫描数据的过程中利用单调序列中三个连续数据形成的夹角和非单调序列中的极值点,从序列中挑选反映趋势变化的关键点,实现时间序列的线性拟合。
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Firstly, reviewing and commenting on foreign and domestic literature about nonrecurring gains and losses; secondly, analyzing the definition and characteristics of nonrecurring gains and losses and the reason to form nonrecurring gains and losses; following, examining the research hypothesis using descriptive statistics and correlation analysis and regression of price and return model, furthermore optimizing the price model and return model through adding year variable and district variable which was divided according the return of the extraordinary items as dummy variables in the empirical research part.
文章先对国内外关于非经常性损益的研究现状进行回顾与述评;其次对我国关于非经常性损益的界定及其形成动机进行了分析;紧接着实证部分采用描述性统计、相关分析和运用价格模型和收益模型进行回归分析,对本文提出的研究假设进行检验,并加入年度虚拟变量和按照非经常项目利润率进行划分的区间虚拟变量对价格模型和收益模型进一步优化,使线性回归方程的拟合优度R2得到显著提高,利用优化后的模型对研究假设进一步检验。
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Methods Firstly, the conductivity of DyCl3 in isopropanol was determined at 303.15 K to 313.15 K to calculate the molar conductivity of DyCl3 secondly, Kohlrausch formula and Origin software were used to make the diagram of linear fitting, finally the diagram was pushed outside and the molar conductivity at infinite dilution λ0/(Scm^2mol^(-1) of DyCl3 in isopropanol was calculated, and the influence of the temperature on λ0/Scm^2mol^(-1 of DyCl3 electrolyte solution was investigated.
根据实验在303.15~313.15K温度范围内测定DyCl3在异丙醇溶剂中的电导率,求得DyCl3的摩尔电导率值,应用Kohl-rausch经验规则,使用Origin软件进行线性拟合,作图外推求得DyCl3在异丙醇中的无限稀释摩尔电导率λ0/S平方公分mol^(-1值,并讨论DyCl3在异丙醇中的λ0/S平方公分mol^
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The three pure component parameters for alkanes were determined by fitting the saturated vapor pressure and liquid density data, near linear relations were observed between the parameter values and the carbon number.
由拟合正构烷烃的饱和蒸汽压和液相密度所确定的三个纯组分参数与烃的碳原子数呈良好的线性关系。
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The trypsin inhibitor activity of sporamin was determined using the method of Smith, and show a fairly linear relationship with the concentration of sporamin between an region of the inhibitor rate from 20% to 70%. The R^2 was 0.983 and the trypsin inbitor activity was (735.32±12.11) TIU/mg.
采用Smith推荐的方法测定了sporamin的胰蛋白酶抑制剂活性,拟合分析结果表明:在对胰蛋白酶抑制率为20%~70%的范围内,胰蛋白酶抑制率与sporamin的浓度呈线性关系,回归系数R^2为0.983。
- 推荐网络例句
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This one mode pays close attention to network credence foundation of the businessman very much.
这一模式非常关注商人的网络信用基础。
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Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.
扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。
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There is no differences of cell proliferation vitality between labeled and unlabeled NSCs.
双标记神经干细胞的增殖、分化活力与未标记神经干细胞相比无改变。