偶极子分布 meaning in Chinese
doublet distribution
Examples
- The event - related potential ( erp ) of 29 channels were analyzed with dllm . the result were compared before and after special filter ( hjorth transformation ) . the acquired dipole distribution reflects different cognitive process
在真实脑波分析中，数据来自于29导事件相关电位记录，通过本模型分析了5个特定时刻在空间滤波( hjorth变换)前后的偶极子分布，它们反映了不同心理过程涉及的脑区域。 - The duct and it ' s vortex is discreted by a number of small straight quadrilateral panel . constant source and doublet distribution is placed on each panel on the surface of body , and constant doublet distribution is placed on each panel on the surface of vortex
以面元的几何形心为控制点，在每个物面面元的控制点上布置等强度的源汇分布和偶极子分布，每个尾涡面面元控制点上布置等强度的偶极子分布。 - The current trends of this field is to acquire the current density of dipole distribution rather than a few dipoles . based upon that , a new model was proposed - dipole layer localization method ( dllm ) : spherical dipole layer was used as source model , on which dipoles were distributed by equilateral triangles ; three concentric inhomogeneous sphere was used as head model , which contains scalp , skull and cortex with different conductance . the dipole distribution and scalp potential tomography were obtained with singular value decomposition ( svd )
鉴于该领域的研究趋势已从求取少数偶极子过渡到偶极子分布密度的获得，本文提出了新的模型? ?偶极面定位方法( dipolelayerlocalizationmethod ， dllm ) ：以等边三角形均匀分布的偶极子构成的偶极面(球面)作为源模型；包括头皮、颅骨和皮层的三层同心介质球作为头颅模型，运用奇异值分解来求解逆问题，从而获得偶极子分布和头皮电位分布，实现三维成像。 - This dissertation use a high - order surface panel method based on b - spline for predicting the hydrodynamic performance of the propeller in steady flow . the b - splme is applied not only to representation of the propeller ' s geometry , but also to represent the doublet strength distribution on the surface of the propeller , which makes the geometry representation and the doublet strength distribution of the propeller more precise
本文采用了一种基于b样条的高阶面元法预报螺旋桨的定常水动力性能，不但用b样条表达螺旋桨表面的几何形状，而且还用其表示螺旋桨表面的偶极子分布， b样条的应用提高了螺旋桨的几何以及偶极子密度表达的精度。 - The surface panel method has been applied to predict the hydrodynamic performance of highly skewed propeller . the surface of propeller and its trailing vortex are discreted by a number of small hyperboloidal quadrilateral panels with constant source and doublet distribution . for highly skewed propeller , the conventional method generating grid oriented along constant radii will result in a high aspect ratio and a high skewness and a twist panel near the propeller tip on blade surface , which result easily in incorrect calculation results of velovity on blade surface , even in iteration divergence and calculation failure . a “ non - conventional grid ” is developed to acoid these problems . this grid can effectively solve the problem of the calculation and convergence for highly skewed propeller . the non - linear kutta condition of equal pressure on upper and lower at the trailing edge is executed by the iterative procedure . by sample calculating , the obtained results are satisfied the experimental data
采用面元法预报大侧斜螺旋桨水动力性能，螺旋桨表面及尾涡面离散为四边形双曲面元，每个面元上布置等强度源汇和偶极子分布.对于大侧斜螺旋桨而言，桨叶表面采用常规的等半径网格划分方法在近叶梢处将导致大展弦比、大侧斜和扭曲面元，这容易使桨叶表面速度的计算结果不正确，甚至会导致迭代过程发散及计算失败.文中建立了一种“非常规网格”划分方法，能有效地解决大侧斜螺旋桨的计算和收敛问题.桨叶随边处通过迭代实现非线性等压库塔条件