查询词典 sphericity

The likelihood ratio criterion of sphericity test, its asymptotic expansion and limiting distribution are obtained.

第二部分：考虑广义球形检验问题。论文得到了这个问题的检验准则，并给出了它的渐进展开。

The hardness, sphericity, and mass of a billiard ball seem to be nothing at all like the quality of your experience of a headache or the taste of a mango.

一个台球的硬度、球度『译注：指颗粒的形状与球体相似的程度』、质量似乎根本不象芒果味道、头疼等你的体验的性质。

But in the forepassed research, the people all abstracted the colloid in the water as the sphericity and explained it by the known theory of the colloid chemistry.

随着科学技术的不断发展，尤其是计算机技术的完善与普及，对絮凝过程的研究与应用的要求进一步深入。

According to the geometric sense of classification problem and starting from dataset, four determinant algorithms for rotundity distribution, cirque distribution, sphericity distribution and columniation distribution are proposed.

本文利用分类问题的几何意义直接从数据集出发，按照两类样本点之间的距离关系，分别给出SVM训练集呈圆形、环形、球状、柱状分布的测试算法，为基于数据分布的核选择方法提供了实现的基础。

The basic worm helicoid surface of sphericity hob was deduced, and the coordinate systems for cutting face gears were established.

推导了球形滚刀基本蜗杆螺旋面方程，建立了滚切面齿轮的坐标系统。

Conclusion］The Salter innominate osteotomy could keep sphericity of the femoral head and congruity with acetabulum of the hip for children with LeggPerthes disease and also could be in aid of preventing premature arthritis of hip.

结论］Salter骨盆截骨能够使缺血性坏死的股骨头获得满意的塑形，恢复与髋臼相匹配的解剖关系，从而有助于防止提早发生骨性关节炎。

This paper extracted and analysed 11Math-Mophological Features such as Area, Perimeter, X-Length, Y-Length, Shape-Parameter, Lobation, Sphericity, Circularity, Roundness, Eccentricity and HoleNumber. Based on 40 species of insects which belonging to 8 Orders, 25 Families. And then ranks the accountability of 11 features each in insect identification while assessing their implication to insect taxonomy on levels of Order, Superfamily, Family and Species. More than those, also describes the kinship among the insects of various categories within the same level from the perspective of mathematical morphology through cluster analyses.

论文对隶属于8个目25科的40种昆虫利用计算机视觉技术进行了自动鉴别研究，从昆虫图像中提取和分析了这些昆虫的面积、周长、横轴长、纵轴长、形状参数、叶状性、球状性、圆形性、似圆度、偏心率、亮斑数等11项数学形态特征，并分别探讨了在目、总科、科及种分类阶元上这些数学特征在昆虫分类中的应用可能性和可靠性，利用聚类分析从数学形态学角度对所涉及到的同阶元昆虫类群的亲缘关系做了描述。

Shape and color characteristics were used to form the separated pattern vector and RBF network was used as classifier for each pattern. Each classifier was linearly combined to give the final identification result. Shape pattern consists of rectangularity, elongation, roundness, sphericity, lobation and seven movement invariants. R, G, B, L histogram and R.G chromaticity histogram were treated as separated color characteristic vector.

昆虫图像的形态特征值由矩形度、延长度、球状型、叶状型、似圆度和 7个Hu不变矩等12个特征值组成，颜色特征值由红、绿、蓝、灰度真方图及基于红、绿的二维色度直方图特征值分别组成，然后建立径向基神经网络分类器，每一特征向量由独立的径向基神经网络做为分类器，最终识别由每个分类器识别结果的线性组合而成。

Consider the sphericity of a particular ball. The ball's sphericity is a particular quality possessed by the ball and it is in virtue of this quality that the ball is disposed to roll.

考虑一个球的圆形，这个球的圆形是特殊具体的性质，被球拥有，借助于这个圆形，球有滚动的趋势。

The commonly methods to adopt in roundness and sphericity assessment always have the property of complicate computation or are out of specification in national standards. Based on the advantages of Cumulative-Sum-Method, the paper proposes to compute the ideal circle and sphere, and assess roundness and sphericity.

针对圆度和球度误差评定中常用方法不符合国标定义或计算复杂的问题，根据普通累积法的优点，提出了运用普通累积法拟合理想国和球，进行圆度和球度的评定。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。