| 1. | With the theory of electromagnetic field and the theory of hydrodynamic , a 2 - d mathematics model of internal planar ac - mhd thruster is built 从电磁场和流体力学的理论出发,建立了交流磁流体推进系统的二维数学模型。 |
| 2. | The main conclusions are as follows : first of all , applying the conception of flux lines to the theory of electromagnetic field makes abstract electrostatic field visible and intuitive 主要内容和结论可归纳如下:首先,电磁场理论由于引入了力线的概念,从而使得非常抽象的静电场获得了形象化的直观表达。 |
| 3. | This article analyses and discusses several typical difficult problems related to the solution of the electromagnetic field in electrostatic field , which will benefit the teaching of the theory of electromagnetic field 本文就电磁场中静电场求解的几个典型疑难问题进行分析、讨论望能对电磁场理论教学有所裨益。 |
| 4. | Secondly , on the base of the theory of electromagnetic field , studying the electromagnetic field of the sensor detailedly and then offering the theoretical warranty to confirm the correlative parameters of the sensor 然后,在电磁场理论的基础上对传感器模型的电磁场进行了详细的分析,从而为传感器模型相关参数的确定提供了重要的理论依据。 |
| 5. | Recently , litovitz et al raised the spatial coherence theory of electromagnetic field ( emf ) . the theory thinks that regular mf is spatial coherence field and noise mf is spatial incoherence field , the noise mf could inhibit the biological effects induced by mf 近年来, litovitz等提出了电磁场的时空相干理论:认为规则电磁场是相干场,可诱导生物体产生效应,而噪声磁场为非相干场,可以干预前者的生物效应。 |
| 6. | According to the theory of electromagnetic fields and temperature fields , the distribution of electromagnetic fields and temperature fields of the large salient synchronous generator with fractional stator slot are calculated and analyzed by the finite element method ( fem ) in this paper 本文根据电磁场理论,从耦合场的弱耦合角度首先计算了定子具有分数槽绕组的大型水轮发电机的电磁场,并分析了电磁场和温度场的耦合关系,进而得出电机内的温度分布。 |
| 7. | According to the theory of electromagnetic fields , the large salient synchronous generator with fractional stator slot are calculated and analyzed by the finite element method ( fem ) in this paper . the fourier analysis method is applied to decompose the air gap magnetic density into the basic spatial component and a series of harmonic components and wave shape eigen coefficient of air gap magnetic field are calculated 本文根据电磁场理论,从耦合场的弱耦合角度首先计算了定子具有分数槽绕组的大型水轮发电机的电磁场,采用付立叶谐波分析的方法把气隙磁密分解为空间基波和一系列谐波,进而计算出气隙磁场波形特征系数。 |