By employing FDTD method and simulating the effects of electromagnetic on the heart of human body, the eddy-currents of the heart of human body induced by MRI time-varying gradient fields are computed and compared with the recommended threshold.

  • 运用时域有限差分法(FDTD),通过电磁场对人体心脏影响的模型仿真,计算出心脏体段由磁共振成像(MRI)时变梯度场感应的涡流,并与已有的心脏刺激阈值进行比较。
  • 来源:互联网摘选更新时间:2026-07-01 16:14:22

  • 重点词汇
  • onprep. (覆盖、附着)在…上;由…支撑着;在(运输工具)上;在(某一天);就在…之后;关于(事或人);(身上)带着;为(某团体或组织)的一员;吃;(表示方向)在,向,对;在,接近(某地);根据;以…支付;通过;与…相比
  • arevi.(用于第二人称单复数现在时,第一、三人称复数现在时)是;
  • human body[医]人体,天地之精;肌体;
  • heartn.心;内心;心肠;爱情;核心;中心;菜心;心形;红桃牌;
  • recommendedadj.被推荐的;
  • thresholdn.门槛,入口,开始,阈;[物理学]阈值;阀值;临界值;<英>级限协定;[航空学]跑道入口;
  • methodn.方法;有条不紊;
  • fieldsn.田;地;(作某种用途的)场地;牧场;(覆盖…的或有…的)大片地方;(学习或研究的)领域;运动场;
  • ofprep. 关于;属于…的;由…制成;
  • theart.这个;指已提到或易领会到的人或事物;指独一无二的、正常的或不言而喻的人或事物;用以泛指;与形容词连用,指事物或统称的人;用于姓氏的复数形式前,指家庭或夫妇;(指特定用途的事物)足够,恰好;每,一;当前的,本,此;(重读,表示所指的为知名或重要的人或事物)
  • 相关例句
1、

Wind tunnel test of a rigid flat-roof model is carried out, in which the time-varying generalized force is obtained in terms of simultaneously measured fluctuating wind pressures and structural modes to consider the correlation of random wind loading.

对一平顶屋盖刚体模型进行了风洞试验,考虑到随机风荷载的空间相关性,试验中利用同步测量的脉动风压和结构模态获得随时间变化的广义力。

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2、

NN, one of soft measurement modeling tools having the association& recollection self-learning better fault tolerance prompt response simulation of the high nonlinear system, has its advantage in modeling the nonlinear and time-varying flux of sluice gate.

神经网络方法是一种效果较好的软测量建模方法,具有联想记忆,自学习,高度容错,快速处理,能逼近高度复杂的非线性系统的特点,适用于非线性、时变的涵闸水力流量过程建模。

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3、

Materials and Methods: With 50 Hz time-varying magnetic field act on mice, 4 hours every day, after 10 days, the micronuclei rate of mouse bone marrow and blood were determined.

材料和方法:用50Hz交变磁场作用于小鼠,每天4小时,10天后检测小鼠骨髓嗜多染红细胞微核率和血液学指标。

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4、

Objective To study the effect of static magnetic fields and low-frequency time-varying magnetic field on the micronucleus in PCE of the mouse bone marrow and blood analysis.

目的研究稳恒、低频交变磁场对小鼠骨髓嗜多染红细胞(PCE)微核率和血象分析的影响。

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5、

Magnetic particles also can have resonant response to a time-varying magnetic field with advantageous results related to the transfer of energy from the exciting field to the nanoparticles.

磁性颗粒能在时间变化磁场中产生共振响应,因而能很好地将能量从激发场转移到纳米颗粒中。

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6、

Magnetic stimulation ( MS) is a method for stimulating excitable tissue with an electric current induced by an external time-varying magnetic field.

磁刺激是利用时变磁场在组织内产生感生电流,使可兴奋组织产生兴奋的一种无创刺激方法。

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7、

New Statement of Uniqueness Theorem for Time-Varying Electromagnetic Field

时变电磁场唯一性定理的完整表述

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8、

Conclusion: Low frequency time-varying magnetic field can promote cellular immunity function in mice.

结论:低频交变磁场能增强机体的细胞免疫功能。

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9、

Induced Electric Field in Time-Varying Magnetic Field

时变磁场中的感生电场

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10、

Constraints of Eddy Current in 2D Time-varying Electromagnetic Field Problems All Changed

二维时变电磁场问题中涡流的约束

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11、

A Moment Method of Analytic Solution to Drive Problem on Time-varying Scalar Field

时变标量场激励问题解析解的矩量方法

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12、

Study on guidelines for low frequency time-varying magnetic field

低频交变磁场安全性的研究

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13、

In virtue of variation theory, boundary problem of magnetic field is changed into equivalent variable problem. Then the procedure of element analysis, discrete format and collective composition equation in sinusoidal and time-varying field are given.

从待解的磁场边值问题出发,利用变分原理将边值问题转化为等价的变分问题,给出了正弦时变场单元分析过程和离散格式以及最终的总体合成方程。

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14、

The one-soliton solution indicates obviously the spin precession around the magnetic field and periodic shape variation induced by the time-varying field as well.

从单孤子解的表达式可以明显看出自旋绕着外磁场进动,且孤子的形状随外磁场的作用周期性变化。

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15、

By Fourier series expansion of lightning current waveform in time-varying field, analytical formulations in frequency domain are derived.

通过对时变场中瞬态的雷电流波形进行傅里叶级数展开和周期延拓,得到了频域中的雷电电磁场的解析公式。

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16、

Getting the potential distribution of grounding grids accurately in time-varying field, the analysis of electromagnetic interference may be analyzed.

时变激励下的接地网模拟计算能够较为准确地求得接地网上的电压分布,从而进行变电站内电子设备之间的电磁干扰分析。

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17、

Numerical Calculation of Substation Grounding Systems in Time-Varying Field

时变激励下接地网模拟计算

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18、

About theoretic calculation for lightning electromagnetic field, two analytical methods are raised, which are dipole method in time domain and time-varying field method in frequency domain.

在雷电电磁场的理论计算方面,提出了两种方法,即时域中的偶极子方法和频域中的时变场方法。

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19、

The results showed that the change of time-varying parameters ( coefficient) in dynamic AR model has a regularity. Its increments are piled up by some simple period functions.

结果表明,动态自回归模型时变参数(时变系数)的变化是有规律的,其增量大体上是一些简单周期函数的叠加。

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20、

Then, based on Lyapunov stability theory and applied the vector comparison theorem, stability for delay time-varying interval coefficient discrete systems is studied and robust stability for delay time-varying discrete linear systems with nonlinear time-varying perturbations is also considered. Some sufficient conditions are obtained.

基于Lyapunov稳定性理论,应用向量比较原理,研究了滞后时变离散区间系统的稳定性,和具有非线性时变摄动的滞后时变离散系统的鲁棒稳定性,得出了一些充分条件。

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