查询词典 concave ground

If singular value curve is convex in the coordinates 'k' of maximum peak of curvature spectrum, then the number of effective singular values is k; if singular value curve is concave in the coordinates 'k', then the number of effective singular values is k-1, and this rule is tested by the signal processing examples.

如果奇异值曲线在曲率谱最大峰值的位置坐标k处是凸出的，则有效奇异值的个数为k；如果奇异值曲线在k处是凹进的，则有效奇异值的个数为k-1，通过信号处理实例证实了这种结论。

Chinese outline fonts ; curve ; concave point and convex point ; stroke extraction ; curve fitting.

汉字轮廓库； Bezier曲线；凹凸点；笔划抽取；曲线拟合

If the curve is concave, the highest curve that touches the budget constraint must be either on horizontal axis or vertical axis, and we call that "corner solution".

因为还可以把曲线再往右上方移，直到无差别曲线横轴或者纵轴相交的点刚好重合在 budget constraint上，那样才是最优。

With the result of analyzing the Greedy Algorithm, an local area encrgy term is defined and added to the target function for capturing the image feature in a wider region and guiding the deforming curve into the concave regions.

传统的参数活动轮廓模型分割图像时，要求初始轮廓线设置在感兴趣区域的边界附近，曲线在变形过程中难以分割深度凹陷区域。

To solve the coupled wave function of nonlinear recording hologram, the linearization method was advanced, and two modulating models of refractive index were adopted, the convex curve and the concave curve.

采用折射率调制特性为上凸型和下凹型的调制曲线，提出了线性化求解非线性记录全息图耦合波方程的方法。

Under a lower pressure, the relationship between C/H and CO adsorption quantity was a beeline and the CO adsorption quantity increases with the of C/H ratio. The relationship between C/H and CO adsorption is a concave curve with the pressure increasing, and the higher the pressure, the higher the discrete degree.

当压力较低时，C/H与吸附量呈直线关系，随着C/H的增加而增加；随着压力的升高，C/H与煤对CO吸附量之间呈凹形曲线关系，压力越高离散度越大。

Taking the reflective phase hologram grating as an example, the spectral properties of the gratings were analyzed, for recording material with refractivity modulated in the convex curve and concave curve, by the coupled-wave theory.

以反射相位型全息光栅为例，用耦合波理论分析计算了记录介质折射率调制为上凸型和下凹型调制曲线的体全息图的衍射光谱特性。

The article analyzes the experiment results of gas percolating in low permeable medium with irreducible water, and gets its percolation law and features, that appear on the relational chart of percolation velocity vs. pressure gradient as a nonlinear percolation curve which changes continuously from a concave curve under low pressure gradient to a straight line under high pressure gradient.

文章分析了在含束缚水条件下低渗透岩石介质气体渗流实验结果，得到了其渗流规律及特征，即在气体渗流速度与压力梯度的关系图上表现为从较低压力梯度下的凹形曲线至较高压力梯度下的直线连续变化的非线性渗流曲线。

Methods］When scoliosis of patients were corrected to a certain degree after three weeks of halo pelvic distraction, the most serious collapsed ribs of concave side of the curve underwent a transverse incision the cross ribs.

［目的］介绍35例重度脊柱侧弯合并严重胸廓塌陷的病例，在颅盆牵引的过程中，同时采用肋骨成形术加水平牵引治疗胸廓塌陷。

Back rounding: Forming the back of a book into a convex curve and thus the fore-edge a concave curve which makes the turning of pages more easy.

圆脊：把书脊做成凸起的圆弧，书口则是凹入的圆弧，方便翻阅。

The staffs of airport are trying to resolve the problem of sustained freights caused by heavy mist.

机场正想方设法处理由于大雾而造成的航班滞留问题。

That is the lamest excuse i've ever heard.

这是我听过最差劲的借口了。