元函数

Firstly,BEM can be used to accurately calculate the expanding stress at the tip of reamers,with regarding the soil medium as the elastomer.

采用轴对称数值方法，将三维模型转化为二维模型，再采用弹性体边界元边界方法，精确计算扩孔器端面的扩张应力，在此基础上求得扩孔器工作过程中所受的阻力和阻力矩，并通过遗传算法，以阻力和阻力矩最小为优化目标函数，对扩孔器的形状、尺寸进行优化。

The argument finds the angle of the 4- vector quaternion from the unit scalar i.e.

辐角函数可找出一4-向量四元数偏离单位纯量(即：1)之角度。

The existence and well-posed ness results for a class of perturbed optimization problemsin a Banach space are given, and the relationships between the strict Kolmogorov Criterionand the uniqueness elements of a sun in vector-valued function spaces are established.

本文研究Banach空间中的一类扰动优化问题的适定性和向量值函数空间中太阳集的唯一性元的严格Kolmogorov条件刻划。

Necessity is not a one-place modal term in common logical thinking, and there is no internal connection between necessity and truth-function of eternal truth.

在普通逻辑思考实际中，必然既不是1元的模态词，而且，必然与恒真的真值函数之间也并无内在联系。

The image quality is evaluated by the Modulation Transform Function,and the scopes of scroll angle and pitch angle that can meet the requirements of the space camera image quality are determined.

应用调制传递函数作为图像质量的评价依据，确定了满足空间相机成像质量要求的侧摆角和前后摆角范围，分析了飞行器侧摆和前后摆对地面像元分辨力的影响。

Meta-analysis studies have shown the strong predictive validity of GCA in relation with job performance.

大量的元分析结果说明了GCA对绩效具有较好的预测效度，且预测效度是工作复杂性的函数。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。