查询词典 electrical resonance

Magnetic resonance electrical impedance tomography is a new imaging modality to obtain the static or dynamic conductivity distribution of subject.

中文摘要磁共振电阻抗成像是一种能够获得成像体内部静态或者动态电导率分布的新型成像方式。

At the beginning of the thesis, the principle, electrical characteristic, and acoustic resonance phenomenon of the HID lamp are introduced.

本文首先介绍了高强度气体放电灯的发光机理、电特性和声谐振特性。

In this paper, a new medical impedance imaging modality (Magnetic resonance electrical impedance tomography-MREIT) is first introduced, including its mathematical theories and the reconstruction algorithms. Then its application in early breast cancer detection research is introduced in detail. Finally, its future research direction and major problems are summarized.

本文在此前提下介绍了一种高分辨率的医学电阻抗成像技术－磁共振电阻抗成像技术的成像原理与成像算法，然后介绍了MREIT技术在早期乳腺癌检测方向的应用，最后分析了该研究方向的发展前景以及目前存在的问题。

In order to avoid resonance produced by electrical parameter match and to control harmonic current enlargement,the effect of capacitor on it and the reasonable disposition of capacitor and reactor should be studie...

因此研究和分析谐波对电容器的危害，认识电容器对谐波电流的放大作用，合理地配置电容器和电抗器，以避免电气参数匹配发生谐振，控制其谐波电流放大具有重要意义。

If eyes with ultrasound, magnetic resonance imaging or electrical physical examination, and sometimes you can discover the site of the optic nerve lesions.

若以眼用超音波、磁振摄影或电气生理检查，有时可以发现视神经病灶的部位。

Magnetic Resonance Electrical Impedance Tomography is a new, noninvasive conductivity imaging modality that integrates current density imaging and traditional electrical impedance tomography.

基于磁共振成像系统的生物电阻抗成像技术是近几年发展起来的新型非入侵式成像技术。

It is very difficult to write an original program when the solved problems have the complicated boundary or determining conditions, for example the direct problem of Magnetic Resonance Electrical Impedance Tomography.

实际计算中，当偏微分方程定解问题的定义域是复杂几何形状或有复杂定解条件时，直接编写有限元原始程序具有相当难度，例如计算磁共振电阻抗成像技术中的正问题。

The general theory of the electromagnetic resonance and electrical properties of the dielectric materials are simply discussed in chapter 2 in order to cite them in the latter chapters. The two kinds of test techniques of the complex permittivity of the dielectric materials with the low or high permittivity are discussed in chapter 3 and chapter 4 respectively, where the author's creationary work is emphasized particularly.

本论文针对国内多家用户对电介质材料复介电常数测试的需要，以谐振法为基础，讨论了电介质材料微波复介电常数的两种测试方法，建立了相应的两套测试系统，分别覆盖了介电常数ε〓=2~10和ε〓=10~125的测试范围，完成了高、低介电常数电介质材料微波复介电常数的准确测试。

In the paper, an algebraic reconstruction algorithm based on magnetic resonance electrical impedance tomography was presented for 3-dimensional (3D) electrical impedance tomography, especially to image the 3D continuous impedance distribution of the head tissues.

文章给出了一种基于核磁共振技术的三维阻抗成像重构算法，并将该方法应用于人体头部组织电导率分布重构上。

The series resonance type fault current limiter has the advantage of simple operating principle and topological structure etc. It may be designed with serial compensation following the condition of the electrical network. However, from the simulation, we draw the conclucion: in the process of restraining fault current after a fault occurrence in electrical network, capacitor and parallel inverter switch will stand for poor working condition.

串联谐振式限流器具有工作原理、拓扑结构简单等优点，并且可以根据需要设计成带串补型，但通过仿真分析得出：其在电网发生短路故障进入短路限流工况过程中，其电容器及并联转换开关将工作在相当恶劣的条件下。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。