梯度磁场

用响应曲面法研究高梯度磁场下燃煤PM（10）的捕集效率

Study on Capture Efficiency of PM_ ( 10 ) From Coal Combustion in High Gradient Magnetic Field Using Response Surface Methodology

弥散加权成像（DWI）施加弥散敏感梯度磁场，获得微观结构的水分子弥散信息，并通过多组弥散加权图像计算弥散张量。

Diffusion weighted imaging adds the diffusion sensitive gradient magnetic field to acquire the diffusion information , and further diffusion tensor can be calculated by using multiple volumes of DWI .

MRI梯度磁场下人体心脏感应涡流仿真研究

Simulations study on MRI gradient field induced eddy current effect at the heart

利用梯度磁场实现检测信号的空间编码，是核磁共振成像（MRI）的关键技术。

Spatial encoding using gradient magnetic fields is the key technique in nuclear magnetic resonance imaging ( NMRI ) .

通过扫描电镜进一步证明，高梯度磁场对水中的胶体颗粒可以起到絮凝的作用，并保持了pH值的稳定，较大幅度地去除了浊度和COD，并且改善了水质。

The high-gradient magnetic field makes colloid particles flocculent in the cooling water , as proved by SEM observation .

根据三维有限元（FEA）电磁场计算软件的仿真和计算，自制出实验所需的产生高梯度磁场的永磁磁体。

The magnet which generates high magnetic field gradient was developed by the FEA electromagnetic computing software .

由于硬件的改进（主要是通过加快梯度磁场的切换速率）受到物理的和生理上的限制，使得部分k空间采集成为减少采集时间的主要手段。

Nonetheless , the acceleration through hardware ( gradient slew rate ) is limited by physical and physiological constraints , which enables partial k-space acquisition to be the most important means to accelerate the acquisition process .

然而，能保持均匀梯度磁场的范围不大，霍尔元件只能小范围（通常仅约1mm）的测量位移。

But can keep even gradient magnetic field range strong , Hall 's component can only measurement displacement among a small circle ( usually only about 1mm ) .

通过MRI中梯度磁场对人体心脏影响的模型仿真，运用FDTD方法计算出心脏部分感应涡流，并与心脏刺激阈值进行比较。

The induced eddy current is computed by simulating the effect of gradient electromagnetic field in MRI at the heart of human body with the method of FDTD . Comparing with the threshold , peak value of the induced eddy current is lower .

以我国中南地区几种主要地带性土壤为材料，比较了物理、化学方法的浓缩效果，结合X－射线分析，探讨了高梯度磁场分选（HGMS）后土壤胶体的矿物类型、氧化铁种类的变化。

Changes of clay mineral association after HGMS for main zonal soils in central and southern China were investigated by means of XRD and chemical analytic methods .

由于静磁场的不均匀、梯度磁场高速切换产生的涡流以及化学位移等，使奇、偶回波之间呈现一定的相位差，于是在相位编码方向产生了Ghost伪影。

Because of the ununiformity of static magnetic field , eddy current causing by the high speed switch of gradient magnetic field , chemical shift etc , phase differences are caused between odd and even echoes , which in turn generate Ghost artifact in phase code direction .

用电镜观测脉冲梯度磁场抑制鼠S-180肉瘤生长和加强免疫细胞溶癌作用。

Observation with an electron microscope showed that a pulsed gradient magnetic field inhibited the growth of S 180 sarcoma in mice and enhanced the ability of the immune cells to dissolve cancer cells .

用数字粒子图像测速技术（DPIV）测量了扩散火焰周围气流在梯度磁场作用下的速度分布，并与无磁场作用下的速度分布比较。

The digital particle image velocimetry ( DPIV ) technique is used to measure the velocity distribution of gas flows around diffusion flames under the gradient magnetic field . The velocity distribution in the presence of the magnetic field is compared with that in the absence of the field .

高梯度磁场氮氧分离技术探讨

High-gradient Magnetic Separation of Nitrogen and Oxygen : Principle and Design

文中还讨论了产生变梯度磁场的方法。

A method to produce the variable gradient field is presented .

梯度磁场中薄膜厚度梯度

The Thickness - Gradient of Films Deposited in Gradient Magnetic Field

大位移测量中均匀梯度磁场的构建

Design of even grad magnetic field in large displacement measurement

铁谱仪高梯度磁场分离过程的研究

Study on Separating Process of Ferrograph Instruments With High Gradient Magnet Fields

脉冲梯度磁场治疗恶性肿瘤机理研究

Summing up of treated sarcoma with ultralow frequency pulse gradient magnetic field

扩散敏感梯度磁场对核自旋运动的影响

Effect of diffusion sensitive gradient magnetic field on the movement of spins

梯度磁场作用下的自由电子激光器增益特性研究

Gain properties of free-electron lasers under the actions of gradient magnetic field

超低频脉冲梯度磁场治疗肿瘤及其机理的探讨

Ultralow Frequency Pulsed Gradient Magnetic Field Inhibited Sarcoma and the Mechanism Discussion

用高梯度磁场净化轧钢废水

Wastewater Treatment in Hot Steel Rolling Mill With High-Gradient Magnetic Field Technology

土壤氧化铁的高梯度磁场分离技术的研究

Study of high-gradient magnetic separation ( hgms ) in soil iron oxides

梯度磁场对水稻幼苗生长发育影响的研究

Effect of gradient magnetic field to germination and growth of rice seedling

梯度磁场对该病有良好的预防作用；

Gradient magnetic field has good preventive effect against it ;

梯度磁场对元胡生长发育的影响

Effects of Step Magnetic Field on the Growth and Development of Corydalis yanhusuo

核磁共振医学成象中的梯度磁场系统

The gradient magnetic field system in n.m.r. medical imaging

U型微弱梯度磁场检测传感器设计及应用

Design and applications of weak magnetic field gradient sensor

马克斯威尔对；线圈；梯度磁场；最佳化线圈；失真。

Maxwell Pair ; Coil ; Gradient field ; Optimal coil ; Distortion .