The effect of high frequency electromagnetic field imposed on outside of a cold crucible mold on the quality of cast metal in hot experiment was studied.
考察了冷坩埚式结晶器外施加高频电磁场对连铸坯表面质量的影响。
A new hot-top casting mold was explored based on the conventional hot-top casting, and low frequency electromagnetic field was applied in the process of casting.
在传统热顶铸造基础上，开发了一种新的热顶铸造结晶器，并在铸造过程中施加了低频电磁场。
Objective To study the effects of extremely low frequency electromagnetic field(ELF EMF) and its combination with lead on the antioxidant system in mouse brain and liver tissues.
目的研究极低频电磁场及其与铅的联合作用对小鼠脑和肝脏抗氧化系统的影响。
Compared it with conventional billet, billet cast with high frequency electromagnetic field, on which depth of surface oscillation mark was decreased remarkably, had a smooth surface.
施加高频电磁场的铸坯与传统连铸坯相比，表面振动痕深度明显减小，且表面光滑。
The current situation, present questions, future research direction of effects and application of extremely low frequency electromagnetic field on human health are introduced in this paper.
简要介绍了极低频电磁场对人类健康的影响和应用研究的现状、存在问题及未来研究方向。
For this reason, the antiscaling technology using high frequency electromagnetic field is introduced. The application of this technology in Jiamusi no. 2 Power Plant etc. has seen good effect.
为此，介绍一种利用高频电磁场防垢技术，经在佳木斯策二火电厂等电厂的应用取得良好效果。
This paper makes a brief discussion on the harm upon human health by radio-frequency electromagnetic field and electromagnetic contamination problems of small power television emission antenna.
本文就射频电磁场对人体健康的危害以及小功率电视发射天线的电磁污染问题作了简要的论述。
Harm on humans health caused by power frequency electromagnetic field is given in detail, with reference on related materials of foreign countries. Corresponding protection measures are described.
参考国外相关资料，对工频电磁场给人体健康带来的危害进行了较为详细的介绍，并对相应的防范措施作了一些说明。
When a current flows through a wire, an electromagnetic field is created which can interfere with signals on adjacent wires. As frequency increases, this effect becomes stronger.
电线路通电时，周围产生一个可以影响临近线路的电磁场，随着频率的升高，其影响也越强。
The electromagnetic parameter of power transmission include: power frequency electrical field, power frequency magnetic field, radio inference (ri) and audible noise (an).
输电线路的电磁环境参数主要包括工频电场、工频磁场、无线电干扰和可听噪声四个方面。
Electromagnetic compatibility (EMC) - Part 4-3: Testing and measurement techniques - Radiated, radio-frequency, electromagnetic field immunity test.
电磁兼容性(emc)。第4 - 3部分：试验和测量技术。辐射、射频和电磁场抗干扰试验。
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。
Magnetic field distribution of low frequency electromagnetic wave in even medium is analyzed, which is related to the medium's dielectric coefficient and magnetic inductive capacity.
分析了低频电磁波在均匀介质中的磁场分布，其分布与介质的介电常数、磁导率密切相关。
This paper USES joint time-frequency analysis (JTFA) for processing transient electromagnetic (TEM) field signals that have diffuse feature in geophysical exploration.
本文将联合时-频分析(JTFA)用于处理地球物理勘探中具有扩散性质的瞬变电磁场信号。
How does jitter frequency reduce EMI from the viewpoint of fourier series theory and the transient electromagnetic field theory is investigated.
从傅氏级数及空间交变电磁场的角度对采用抖频技术如何来减小EMI进行了分析。
Several dipole antenna models were proposed to modeling the near electromagnetic field of high-frequency switched mode power supplies (SMPS).
讨论了用于开关电源辐射建模的基本偶极子天线模型，给出了各模型电磁场的解析解。
The biological effect of extremely low frequency (ELF) electromagnetic field on human body is a question in dispute.
低频电磁场是否对人体或生物存在不良影响，一直是学者们争议的课题。
The preliminary research result of electromagnetic prospecting with the near field(transition region) of infinite-length line source in frequency domain is presented in this paper.
本文对频率域无限长线源近区（过渡区）测深的理论基础进行了探索性研究。
Based on the theory of electromagnetic field, the electrically distributed parameters of pipelines in frequency domain are emphatically analyzed, and its relative model is established in this paper.
本文借用电磁场中的已有理论，着重分析了管线在频率域中的电性分布参数。
Objective To investigate the protective effects of low-frequency pulsed electromagnetic field (LFPMF) on neuron following cerebral ischemia-reperfusion injury in rats.
目的研究低频脉冲磁场对脑缺血再灌注损伤大鼠海马神经元的保护作用。
The field-oriented control is a powerful tool for controlling the transient electromagnetic torque of the induction motor fed by a frequency converter.
磁场定向控制是控制由变频器供电的异步电机暂态电磁转矩的有效手段。
The field-oriented control is a powerful tool for controlling the transient electromagnetic torque of the induction motor fed by a frequency converter.
磁场定向控制是控制由变频器供电的异步电机暂态电磁转矩的有效手段。
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