曲线拟合
- 与 曲线拟合 相关的网络例句 [注:此内容来源于网络,仅供参考]
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The results showed that the semivariogram of S.granarium was described by a spherical model,and indicated an aggregated special pattern ranging from 21 to 61cm. The semivariogram of Aphidius sp.could be also well described by spherical model, and indicated an aggregated spatial pattern ranging from 36 to 55cm.The amount and spatial distribution of Aphidius sp. w...
结果表明,不同时期麦二叉蚜种群的半变异函数曲线皆为球型,其空间格局为聚集型,变程在 2 1~6 1cm之间;蚜茧蜂种群的拟合半变异函数曲线也表现为球型,呈聚集空间格局,空间变程在 36~ 5 5cm之间,并与麦二叉蚜种群在数量和空间上有较强的追随关系,说明蚜茧蜂种群是麦二叉蚜种群的优势种天敌。
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The survivorship curve accorded with exponential function and belonged to style Deevey Ⅱ〓.
仙湖苏铁种群存活曲线与指数模型拟合效果更好,属于Deevey Ⅱ〓型存活曲线。
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Non uniform B spline, big deflective spline, fair methods of separated points, and transcendental functions etc.
其中单根曲线工具库,集非均匀BSpline、大挠度Spline、离散点光顺理论及超越函数等数学方法综合利用于一体,但曲线最终均被拟合在统一的几何不变的ArcSpline系统模型中。
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While sustaining constant force, isometric muscular contraction, the initial past decreasing rate of medium frequency curve, the absolute value of the fitting straight line slope, was increased with the degree of the muscular fatigue. With this rate, it was possible to quantitatively judge the state of the muscular fatigue, reduce the physical consumption and muscular uncomfort of recipients.
在维持等长、恒力肌肉收缩时,f_曲线初始段下降率(即拟合直线斜率的绝对值)随肌肉疲劳程度的增加而增加,因此希望能用f_曲线初始段的下降率来定量判断局部肌肉疲劳的状态,以减少受试者的体力消耗和肌肉不适程度。
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In recent years, LMS technique outstands in mushrooming methods about fitting percentile curves, which had been widely used to establish normal references in many countries and areas worldwide, mainly on indicators as height, weight and BMI.
近些年关于拟合百分位数曲线标准的文献层出不穷,偏度均值变异系数法技术可谓一枝独秀,目前广泛用于许多国家及地区的生长发育百分位数标准曲线制订,主要应用于儿少身高、体重及BMI领域。
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Measured the basic physical parameters of unsaturated soils in Three Gorges Reservoir area; 2 measured the initial sample matric suction using the unsaturated triaxial testing system, which can be used to evaluate the unsaturated soil strength and stress; 3 the drying and moisture absorption experiments were executed using the Tempe apparatus, and got the Soil-Water Characteristic Curve, permeability coefficients of every stress level were simulated according to the parameters from the SWCC; 4 the unsaturated soil strength tests were carried out using the GDS triaxial testing system, then got the Mohr circle and shear strength parameters; the results from different stress paths were compared; meanwhile, the axial strain-stress ratio-volume strain curve of different matric suction and different radial pressure was got, as well as their relationship; The research, which provided the necessary data and reference for Three Gorges Reservoir area geologic disaster, is the basic component of Three Gorges Reservoir geologic disaster prevention and research, and experimental results will be used directly in the project.
1量测了三峡库区非饱和土的基本物性参数; 2用非饱和土三轴试验仪量测了试样的初始基质吸力,为评估非饱和土的强度和应力水平提供参考; 3用Tempe仪和体积压力板仪进行了非饱和土的干燥和吸湿试验,得到了土-水特征曲线,并根据其参数拟合出各级吸力状态下对应的渗透系数; 4用GDS三轴仪进行了强度试验,得到了Mohr圆和抗剪强度参数;并比较分析了不同应力路径下试验结果;同时得到不同吸力和不同围压下轴向应变-应力比-体应变的关系曲线和其相互关系。该研究是三峡库区地质灾害防治研究工作的基础性工作,其结果将直接应用到工程实际中,为三峡库区地质灾害提供必要的数据和参考。
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Geometrical and physical parameters of components of the absorber in the virtual prototype follow from those technical data of a specific passenger car. Bench tests are conducted and a series of experimental results have been obtained by the MTS absorber test machine for the damping force-velocity which can be imposed in the virtual prototype for dynamic simulation. The piecewise, the hysteretic looped and the abnormal looped hysteretic force-velocity curves for the absorbers are, respectively, input into the prototype.
减振器阻尼力—速度特性是根据MTS减振器特性试验机试验结果,通过分段拟合,分别以分段线性、迟滞环和迟滞环畸变情况输入虚拟样机进行仿真分析,试验及仿真结果比较说明:减振器速度外特性采用迟滞环非线性,比采用双线性化模型更接近试验结果,能够更合理地解释试验现象;减振器阻尼力速度特性曲线出现畸变,如在复原行程初期迟滞特性曲线出现交叉现象,可以引发减振器系统动力特性的高频振动成分增加。
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Kinetic research of minerals has been a very important area in the research of geology. In this research, three kinetic methods ─ Master Curve Model, Ozawa method and Avrami Equation method ─ have been used to analyze and predict the thermal decomposition reactions of five evaporite minerals.
矿物的反应动力学在地质学领域中是相当受重视的研究课题,本研究中采用主导曲线模型、等反应量法以及Avrami Equation等三种动力学方法分析蒸发岩矿物的热分解反应,并尝试拟合出各反应之主导曲线以描述其反应过程之温度、时间与反应历程。
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The temperature curve of flue gas was fitted by the least square methods during the sintering process, and then 4 flexions of the temperature curve were calculated by solving a two-order derivative of the temperature curve.
提出利用最小二乘法拟合烧结废气温度曲线,求曲线方程的二阶导数计算出烧结废气温度的四个拐点。
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As to straight texels, we study the local relative coordinate equation of a light line in a texel coordinate system, and the concrete shape of light line when mapped to texel space, so that quick check could be made for the intersection of light line with hairs. This becomes the straight texel rendering method of global smoothness for all hairs and can be used to long hairs.
对于直形纹元,研究了直纹元体内光线的局部相对坐标方程,和影射到纹元空间后的具体形状,并给出拟合纹元空间中光线曲线的方法以及它投影到纹元底面的曲线的形状,以便使用快速方法判断光线与头发的相交情况,进而给出在整体上具有头发光滑效果的直纹元的绘制方法。
- 推荐网络例句
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She gently rebuff ed him, but agreed that they could be friends
她婉言拒绝了,但同意作为朋友相处。
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If in the penal farm, you were sure to be criticized.
要是在劳改农场,你等着挨绳子吧!
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Several theories about reigniting and extinguishing of the arc have been refered.
本文综合考虑了几种电弧重燃和熄灭理论。