高频

We use high-frequency pulse current source and applied magnetic field during the process to electrodeposit Ni nanocontacts.

我们采用高频脉冲电流源并在电镀过程中施加磁场的方法，制备镍纳米点接触。

Is specialized in research and development, production and sales of medical equipment accessories and supplies, our items are widely used in monitor, oximeter, ECG, HOLTER, electroencephalograph, B-ultrasound ,high-frequency surgery electrodes etc.

金美医疗科技有限公司专业研发、生产和销售医用电子仪器的配件及耗材，产品广泛应用于监护仪、血氧仪、心电图机、HOLTER、脑电图仪、B超、高频手术电极等。

Others desynchronized with 5－90 Hz primary depth electrographic after-discharges;(2) primary electrographic after-discharges were driven by primary unit after-discharges in the anterior dorsal HPC;(3) primary unit after-discharges were induced by brief primary electrographic after-discharges; and (4) plasticity of primary electrographic after-discharges and inhibition of single neuron firing were induced by repetitive ATPDH.

非同步性后放电的深部电图癫痫样电活动具有宽频带特征(5－90 Hz)；(2)原发性单位后放-后抑制效应可以引发低频原发性电图后放电，长时程爆发式单位放电可以诱发高频原发性电图后放电；(3)短束原发性电图后放电也可以诱发原发性单位后放电；(4)原发性电图后放电和神经元单位放电的抑制效应具有明显可塑性特征。

And by using IM, the RCS of a dielectric plate and array antennas of dielectric cylinders guiding electromagmetic field with finite length are calculated. IM method gets rid of the inversion of a large matrix and its solution can be fast convergent, so it is simple and especially fit for solving the problems with which the high-frequencies and the low-frequencies deal difficultly.

本文所作主要工作及贡献如下：（1）在考虑馈源匹配良好的状况下，用各种高频近似法对卡塞格伦天线、二维与三维反射面天线的电磁散射与RCS进行了全面地分析计算，并对旋转反射器表面形状进行了低RCS外形优化设计。

It is consisted of two circuits: the high frequency converter and the electromagnetic switch contact state sensing circuit without any sensor.

提出了一种互补式开关新技术，它由两个新电路构成，即高频开关变换器与电磁开关触点状态无传感器实时采样电路。

The experimental measurement and numerical simulation were used to study the magnetic field distribution in the two-stage soft contact electromagnetic continuous casting slit-less mold.

通过实验测试和数值模拟的方法研究两段式软接触电磁连铸无缝结晶器结构、线圈位置、电源功率以及弯月面位置等因素对结晶器内高频磁场分布的影响。

In order to master the technical characteristic of soft contact EMCC, and to certain the optimum electromagnetic processing parameters of soft contact EMCC, the combination of theoretical study and experimental study of 100mm×100mm billet casting processing by imposing 20kHz high frequency electromagnetic field were investigated.

为了掌握软接触电磁连铸的技术特征，确定方坯软接触电磁连铸所需最佳电磁工艺参数，本文采用理论和实验研究相结合的方法，对高频磁场（20kHz）方坯（100mm×100mm）软接触电磁工艺进行研究。

In order to produce the billet without surface defect under high casting speed and to raise the ratio of DHR or HDCR operation and reduce defect ratio of the final products, soft contact EMCC (Electromagnetic Continuous Casting) technique by imposing high frequency electromagnetic field on the molten steel meniscus region has been developed. This technique is used to control the initial solidification of the billet.

为了在高拉速条件下生产出无表面缺陷的铸坯，以进一步增大铸坯HDR或DHCR的操作比率、提高最终产品的无缺陷率，连铸技术工作者开发出利用高频交变磁场对铸坯初始凝固过程进行控制的软接触电磁连铸技术。

Chapter 1 outlines various kinds of numerical methods in electromagnetics, the history and developmental trend of edge finite element.

它被认为是继节点有限元之后一种富有生命力的方法，在电磁学的高频和低频领域都得到了广泛的应用。

High-frequency and high power electronic or microwave devices, because of their excellent properties such as wide band gap, high electron saturation drift velocity, low dielectric constant, high thermal conductivity, good chemical and thermal stability, and so on.

同时由于GaN基材料具有电子漂移饱和速度高、介电常数小、导热性能好、化学和热稳定性好等特点，也非常适合于制作高温、高频及大功率电子器件。

I am accused of being overreligious," she said in her quiet, frank manner,"but that does not prevent me thinking the children very cruel who obstinately commit such suicide.""

客人们在卡罗利娜·埃凯家里，举止就文雅一些，因为卡罗利娜的母亲治家很严厉。

Designed by French fashion house Herm è s, this elegant uniform was manufactured in our home, Hong Kong, and was the first without a hat.

由著名品牌 Herm è s 设计，这件高贵的制服是香港本土制造，是我们第一套不配帽子的制服。