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.

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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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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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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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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Induced Electric Field in Time-Varying Magnetic Field

时变磁场中的感生电场

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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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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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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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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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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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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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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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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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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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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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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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Due to the time-varying beamforming coefficient breaks the correlation of target and sea-clutter in the whole coherent process interval ( CPI), the Bragg peaks will spread after the Doppler processing.

时变的波束形成系数破坏了积累周期中海面动目标和海杂波的相关性，多普勒处理后Bragg峰扩散引起基底抬高。

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Finally, Bayesian Wishart Autoregressive model is applied for depicting the time-varying correlation coefficient and discussing the volatility spillover effects between the stock market and the precious metal futures market.

最后，利用贝叶斯Wishart自回归模型刻画了贵金属期货市场与股市的时变相关系数，并讨论的市场间的波动溢出效应。

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We find that using a time-varying correlation coefficient Copula function to calculate optimal hedging ratio can get the hedging portfolio with smaller value of LPM than the traditional methods.

发现使用具有随时间变化的相关系数的Copula函数估计得到的最优套期保值组合比传统的方法估计得到的最优套期保值组合有更小的下偏矩。

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The dynamic phasor theory, which is based on time-varying Fourier coefficient series, is applied to modeling and simulation of power electronic devices.

把动态相量理论推广应用到了电力电子装置建模及仿真中。

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