曲线拟合

As a foundation of measuring the dynamic stress intensity factor, the influences of geometry and size of the caustics due to the crack propagation velocity are analyzed in detail.

特别分析了裂纹扩展速度对焦散斑和初始曲线的形状、大小的影响，为测量扩展裂纹尖端的动态应力强度因子K_1~d提供了依据，并通过拟合得到了以裂纹扩展速度为参量的修正因子表达式。

After looking up a large amount of native and foreign information, the materials used in the experiment were as follows: PTFE base, graphite filler, molybdenum disulfide filler, copper powder filler, carbon fiber and so on. The experimental method is that the formula was designed according to uniform experimental method, the relationship between formula and frictional property was found with spline function and then the representative test points were chosen from fitting curve to make verification test for optimization.

经过查阅大量国内外文献资料后确定原料为：聚四氟乙烯树脂为基体，加入石墨、二硫化钼、铜粉、碳纤维等填料；试验方法为：根据均匀试验方法设计配方，用样条函数找出配方与摩擦性能的关系，然后在拟合曲线上选取具有代表性的试验点进行验证试验，达到优化的目的；制备工艺：冷压烧结法制备固体润滑剂。

METHODS:The dissolution curves of nicrandil-ethylcellulose solid dispersion granules and tablets were measured. The release data were fitt ed with three model equations. The release kinetics and release mechanisms of g ranules and tablets were judged by the sequence of correlation coefficients of t hree fitting equatuions.

测定尼可地尔-乙基纤维素固体分散物颗粒及片剂的释放曲线，并用3种模型方程--零级动力学方程、一级动力学方程、Higuchi模型方程进行线性拟合，根据所得方程的相关系数的大小顺序，确定颗粒及片剂的释放动力学及释放机制。

This phenomenon is in accordance with the results of electrical conductivity measurement, t〓 decreases with temperature, the reason may arise from the electrode polarization or the gas leakage through the pellet 〓.

根据实验测得的电导率随氧分压的的指数关系，本文提出了一种新的模型对〓的i～E极化曲线进行拟合后分别得到了电子和电子空穴电导的数值。

Based on this relationship, we can change the Tg of starch by changing its molecular weight to meet the pratical needs.The DSC technique is used to estimate the consistence character of starch with different additives. The glass transition behavious of starch blended with water and Xanthan gum are examined respectively. An expirical expression is obtained for the Tg of starch blendee with additives according to the blending model of polymers and verified with the experimental results. This expression can be used as a base to predict the Tg of starch blended with Xanthan gum.

采用DSC曲线分析法进行了各种填加剂与淀粉的相容性试验，考察了淀粉分别与水和黄原胶共混后体系的玻璃化转变行为，并根据高分子聚合物的共混模型对糯米淀粉与黄原胶共混物的玻璃化转变进行拟合，得到适用于此体系的经验关联式，并应用玉米等淀粉与黄原胶共混后的实验值进行验证，得到该关联式的有效性，为预测淀粉与黄原胶共混后的玻璃化温度值提供了理论依据。

The growth of Schizopygopsis stoliczkai stoliczkai could be fitted with von Bertalanffy equation. There were inflexions in growth rate and growth acceleration of body weight, the reflection point was t=10.18 years. Growth rate and growth acceleration of body length would change as time.

用von Bertalanffy方程拟合高原裸裂尻鱼的生长，体重生长速度和加速度曲线均具明显拐点，拐点年龄为10.18龄，体长生长速度和加速度随时间变化。

According to the daily observation of saturation line, the water level of observation well and reservoir water level curves are attained by polynomial regression analysis.

运用多项式回归分析浸润线观测数据，拟合得出浸润线观测孔水位与库水位的函数曲线，求得尾矿坝浸润线矩阵。

Photosynthetic physiology index and diurnal change of photosynthesis, in 5 Rhododendron delavayi cultivars, such as jean de marle montague, Bule bell, which were introduced from Shijiazhuang, Hebei Province were studied. The photosynthetic light -response curve of different cultivars was also simulated.

对红粉玉蝶、井岗紫霞等5个从河北石家庄等地引进的高山杜鹃优良品种的主要光合生理指标、光合日变化进行了比较研究，并对各品种的光响应曲线进行了拟合。

Based on this algorithm, we use the circular arc as basic element to fit curve accroding to least mean-square error rule.

在该算法的基础上根据最小均方误差准则，以圆弧作为基元对曲线进行拟合。

Thirdly, geometry and mechanics equation on arbitrary point of the mooring line is deduced based on the catenary's theory . By using B-Spline functions the relationship curve between excursion and mooring force can be obtained, so the mooring force on buoy during the motion is known.

另外，本文应用数学物理的悬链基本方程，推导出平衡悬链上的任意点的几何、力学计算方程，给出了链型静力平衡判别式，还建立了锚链松弛和张紧状态下锚链顶端位移与水平力及垂向力之间关系的分析程序，通过B样条函数方法拟合不出同吃水情况下物体的水平漂移量与锚链拉力之间的关系曲线，从而在时域计算中可以得到锚链力的大小。

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。

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！