查询词典 dimensional analysis

Around TLDM, we discuss the definition, representation, calculation and reasoning of their relationships in two-dimensional space. TLDM also considers map design and spatial analysis based on equivalence class.

为此，本文提出并实现了一个面向对象的三级地图数据模型TLDM，并围绕该模型讨论了二维平面上地图对象以及空间关系的定义、表示、计算和推理、地图的构造和输出以及基于等价类的空间分析等。

Firstly, according to electromagnetic field theory, the 2-dimensional (2-D) mathematical model of a three phase squirrel-cage Y802-2 induction motor is developed. Then general equations can be deduced from finite element discrete and functional analysis. The motor's 2D solving region of electromagnetic field is given based on the boundary conditions and assumption conditions of the squirrel-cage induction motor. Through finite element mothod and inner–outer convergence method, magnetic field distributions and magnetic forces of bars can be calculated in following rotor conditions: health rotor, one single broken bar, two adjacent broken bars, two broken bars with one good interval, two broken bars with two good interval and four adjacent broken bars.

本文首先根据电磁场理论建立Y802-2型三相笼型感应电动机二维电磁场的数学模型，并对其进行了有限元离散以及泛函分析，推导出总体方程；在基本假设和边界条件基础上，给出笼型感应电动机二维电磁场的求解区域，然后应用有限元并结合内外双收敛方法，对样机稳态运行进行数值计算，得出电机在转子完好、一根导条断裂、连续两根导条断裂、间隔一根两根导条断裂、间隔两根两根导条断裂及连续四根导条断裂六种情况下的磁场分布和导条所受电磁力的变化情况。

is applied to construct the three-dimension model for finite element analysis. Short circuit and open circuit of the field winding and the teeth and slots structure of the rotor are discussed. An appropriate three-dimensional mesh is made. The corner point problem of conductor is eliminated. Furthermore, a new memory structure for sparse complex matrix and a PCCG method based on it are introduced to save memory and computation time.

在汽轮发电机失磁异步运行转子三维涡流场数值计算模型中，应用了〓法建立了三维有限元计算模型，考虑了转子绕组的开、短路状态及转子齿槽结构，形成了合适的三维剖分网格，解决了三维电磁场有限元计算中角点奇异的问题，创立了一种新的稀疏矩阵的存储格式以及基于该格式的预处理复数共轭梯度法从而减少内存开销和加快了求解速度。

The absorbing performance of one dimensional PML is theoretically analyzed and numerically simulated in view of the error caused by finite difference approximation, respectively, whose results show that this theoretical analysis can exactly indicate practical circumstances.

在计及有限差分近似造成的误差下，理论分析和数值模拟了一维理想匹配层的吸收性能，结果表明这种理论分析能完全反映实际情况。

Objective To establish three dimensional finite element model of the elbow joint, and to test its value in the analysis of stress distribution.

目的 建立肘关节三维有限元模型，并验证其在分析肘关节应力分布中的价值。

Thermal-structural analysis was performed for ultrasonic wire bonding by three dimensional finite element method.

用三维有限元方法对超声波线焊进行了瞬态的热-结构分析。

In this paper,based on the analysis of basic features of ground fissures in Xi an ,the numerical simulation of ground fissures in Xi an is made by using two dimensional finite element method.

本文在分析总结西安地裂缝基本特征的基础上，采用二维有限元法，对西安地裂缝进行了数值模拟。

So the principal component analysis approach is employed to compress the MCF and other fixed dimensional feature vector, an improved algorithm is provided, which has faster training speed than the original one.

为此我们利用神经网络主分量分析的方法，给出了语音特征压缩的具体算法，成功地解决了语音识别特征的降维问题。

RESULTS: Image analysis of two-dimensional map revealed 72 differentially expressed proteins between MHCC97-H and MHCC97-L cells, and 9 protein peaks (including M2 pyruvate kinase,α-subunit of ATP synthase, heat shock protein 60, Toll-like receptor 9, flavoprotein oxygenase, pro-calreticulin, manganese superoxide dismutase, nm23-H1, and G-protein-coupled receptor kinase 5) were further identified by tryptic digestion, peptide mass fingerprinting and mass spectrometry.

结果： 2D图谱显示共有72个差异蛋白条带，共鉴定出了9个差异蛋白，分别为M2型丙酮酸激酶、ATP合成酶α亚单位、热休克蛋白60、Toll样受体9、含黄素单加氧酶、钙网硬蛋白前体、锰超氧化物岐化酶、nm23-H1、G-蛋白偶连受体激酶5；其中4个蛋白在高转移细胞株MHCC97-H中表达升高， 5个蛋白在低转移细胞株MHCC97-L表达升高。

The two-dimensional gel electrophoresis (2D) analysis followed by fluorography clearly displayed proteins preferentially methylated in PRMT1-expressing cell lysates suggesting that they were potential PRMT1 substrates.

在此研究中我们建立大量表现PRMT1 (protein arginine methyltransfrase 1)的细胞模式，并成功地以二维胶体电泳展开甲基化蛋白，发现有无大量表现PRMT1的HEK293细胞，在一些蛋白质甲基化作用的情形有明显差异。

For a big chunk of credit-card losses; the number of filings (and thus charge-off rates) would be rising again, whether

年美国个人破产法的一个改动使得破产登记急速下降，而后引起了信用卡大规模的亏损。

Eph. 4:23 And that you be renewed in the spirit of your mind

弗四23 而在你们心思的灵里得以更新