Through the analysis series, found the curve for former fourth-order magnetic resonance frequency of single degree of freedom magnetic bearing system changes with the axial gap and bias current;
通过一系列的分析,找到了单自由度磁轴承系统前四阶共振频率随轴向磁隙和偏置电流的变化规律曲线;
Flaky morphology of magnetic alloy particle material can raise its natural resonance frequency because of strong shape anisotropy, which is advantageous to acquiring high microwave permeability.
薄片形状的磁性合金颗粒材料由于强形状各向异性可使其自然共振频率大大提高,有利于获得微波高磁导率磁性合金。
Flaky morphology of magnetic metal particle material can raise its natural resonance frequency because of strong shape anisotropy, which is advantageous to acquiring high microwave permeability .
薄片形状的磁性金属颗粒材料由于强形状各向异性可使其自然共振频率大大提高,有利于获得微波高磁导率磁性。
The additional axial finite magnetic field also has some influence on the beam-wave interaction efficiency and the resonance frequency.
外加纵向有限磁场也对注波互作用效率和谐振频率有一定的影响。
When the frequency of CP pulses is lower, average voltages and currents of windings will decrease and magnetic field energy of motor is very little so as not to produce resonance.
当CP脉冲为低频时,各相绕组平均电压和平均电流较低,电动机磁场储能较少,一定程度上克服了共振现象。
Objective To characterize brain activation associated with the effects of frequency in reading aloud of Chinese characters using event-related functional magnetic resonance imaging.
目的利用事件相关功能磁共振成像技术观察出声阅读条件下不规则汉字频率效应的脑激活模式。
We find that the permeability and the resonance frequency can be adjusted by the DC bias magnetic field, and the bistable characteristic arises under certain conditions.
我们发现磁导率及其共振频率均可以通过直流偏置磁场进行调节,并且在一定条件下出现双稳特性。
The frequency shifts of magnetic resonance lines brought about by phase changes are also studied.
我们还研究了相界两侧磁共振吸收线的频率变化。
A generalized equivalent circuit model was developed for both single-tuned and double-tuned radio-frequency(RF) coils for Magnetic Resonance Imaging (MRI) systems.
为了解决磁共振成像系统中双调谐射频线圈的设计问题,提出了一个通用等效电路模型。
In some embodiments a retractable radio frequency screen (92) is selectively extendible into a gap between the magnetic resonance scanner and the second modality imaging system.
在一些实施例中,可以选择性地将可收回的屏幕(92)延伸到磁共振扫描器和第二模态成像系统之间的间隙中。
A magnetic resonance imaging scanner (10) includes a main magnet (12), magnetic field gradient coils (16), and one or more radio frequency coils (18).
一种磁共振扫描器(10)包括主磁体(12)、磁场梯度线圈(16)和一个或多个射频线圈(18)。
A hybrid imaging system includes a magnetic resonance scanner (10) and a second modality imaging system (12) disposed in the same radio frequency isolation space (16).
一种混合成像系统包括设置在同一射频隔离空间(16)的磁共振扫描仪(10)和第二模态成像系统(12)。
A radio frequency coil system (38) for magnetic resonance imaging includes a plurality of parallel spaced apart rungs (60) which each includes rung capacitors (68).
用于磁共振成像的射频线圈系统(38),包括多个平行隔开的横档(60),每个横档包括横档电容器(68)。
A radio frequency coil system (38) for magnetic resonance imaging includes a plurality of parallel spaced apart rungs (60) which each includes rung capacitors (68).
用于磁共振成像的射频线圈系统(38),包括多个平行隔开的横档(60),每个横档包括横档电容器(68)。
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