查询词典 concave curve

The primary character feature curve by this method, called RPCGC (Ring-Projection Curve Gravity Center), has the invariant property with respect to rotation, and then the wavelet feature vectors from RPCGC has stability.

在字符信号f的多分辨率描述中，A〓f代表了信号的低频成份，反映了模式的基本形状，而D〓f代表了信号的高频成份，反映了模式的细节和噪声。

As temperature rose,turbidity of protein solution increased by s-shape curve and climbed quickly at 48 ℃; Viscosity decreased by inverse s-shape curve and greatly declined at 46 ℃; Ca2+-ATPase activity decreased gradually with a slight increase from 36 to 42 ℃ and reduced to blank at 46 ℃; Total sulfhydryl group...

结果表明：随着温度的上升，浊度呈S型曲线增加，48℃时上升迅速；黏度呈反S型曲线下降，46℃时下降剧烈；Ca2+-ATPase活性下降，在36～42℃略有上升，46℃时完全失活；总巯基含量从40℃开始显著下降，60～70℃时下降显著。

Simultaneously, when the volume fractions of coexisting three-liquid-phases are converted into mass densities, it is also found that the coexisting curve of temperatures versus mass densities of phases is also standard inverse "S" type curve.

实验结果表明，在平衡共存三液相中，水、环己烷和二乙二醇丁醚的体积分数随温度改变的变化曲线分别是倒"S"型，正"S"型，"结"型；将共存三液相的体积分数转化为对应的相密度后，相密度随温度改变的变化曲线也是规整的倒"S"型；而且，3条"S"曲线形状均表现出不对称的特性。

We use mechanics testing method like stretch and bend to test the 3mm magnesium alloy(MB3) after friction stir welding. The stretch sample can show no less than 70% of raw materials performance when the condition is suitable: R= 1500r/min,v = 90mm/min,R/v=16.7 and F=1470N. Curve intensity of the joint reaches 90.2% and 83.0% at obverse and inverse curve separately.

利用拉伸、弯曲等力学测试手段对搅拌摩擦连接的3mm厚MB3镁合金板进行机械性能检验，检验结果为：在使用焊接合理工艺参数R=1500r／min，v=90mm／min，R／v=16.7，F=1470N的情况下，拉伸试样70％以上断裂于母材，接头正弯与背弯强度分别可以达到母材的90.2％和83.0％。

According to the load-displacement curve obtained experimentally from the double holes microshear test, the true stress-strain curve of local material was calculated by means of the inverse methodology of finite element computation.

建立这种方法的有限元模型，根据实验的载荷位移曲线，利用反向有限元计算方法得到局部材料的真应力应变曲线。

With increasing loading, the reduction degrees of average correlative coefficients of linear fitting functions of isochronous stress axial strain curve and isochronous stress-radial strain curve are 0.97% and 0.67% respectively, which indicates the linear correlation decreases commonly.

随加载应力水平的提高，应力－轴向应变等时曲线和应力－径向应变等时曲线线性拟合函数的平均相关系数下降幅度分别为0.97%和0.67%，线性相关性普遍降低。

The average correlative coefficients of linear regression function for isochronous stress- axial strain curve are 3.92% higher than that of average correlative coefficients of linear regression function for isochronous stress- radial strain curve, so nonlinear creep property of the fine sandstone specimen in axial direction is correspondingly weaker than that in radial direction.

应力－轴向应变等时曲线线性回归函数的平均相关系数高出应力－径向应变等时曲线线性回归函数的平均相关系数3.92%，因此其轴向非线性蠕变特性相对于径向非线性蠕变特性更弱。

The section curve equation of main stirring shaft is obtained by deducting the screw profile curve formation process of the stirring kneader.

用数学方法对搅拌捏合机搅拌轴螺杆外形曲线的形成过程进行了详细的推导，得出了主搅拌轴截面曲线形状公式。

This is a fractal graphics procedures, can be achieved C curve, KOCH curve, fractal tree.

这是一个分形图形实现程序，可以实现C曲线，KOCH曲线，分形树。

The Laffer Curve and Supply-Side Economics The Laffer curve depicts the relationship between tax rates and tax revenue.

拉伐曲线与供给学派经济学拉伐曲线说明税率和税收之间的关系。

You can snipe the second and third union leaders from this position.

您可以鹬第二和第三工会领袖从这一立场出发。

Aiming at the currently shortage of XML streams quality detecting, this paper proposes a new forecasting method of XML streams quality by least squares support vector machines, which is used the method of XML keys' vector matrix as windows, and vector product wavelet transform to multilevel decompose and refactor the XML streams series, that can fulfill real-time checking demand of XML quality, and ensure constraint, consist- ency and integrality. For even more adapting net load, it proposes a control strategy by weight and adaptive adjustment to ensure XML streams quality.

针对当前XML数据流质量检测存在的不足，提出构建XML键的矢量矩阵作为窗口，利用矢量积小波变换多级分解与重构XML数据流，再结合最小二乘支持向量机对XML数据流质量进行预测的一种方法，满足XML数据流质量重构时实时检测的要求，保证XML数据的约束性、一致性与完整性；为了更好的适应网络负载，采取加权与自适应窗口调整等调度策略充分保证XML数据流的质量检测。