梯度磁场是位于磁体腔内的几组线圈通过电流而产生,附加在主磁场上,可以增加或减弱主磁场强度,使沿梯度方向的自旋质子具有不同的磁场强度,因而有不同类型的共振频率。
T2*衰减速度总是快于T2衰减速度 15.梯度磁场(Gradient magnetic field): ):是一个随位置、以线性方式变化 .梯度磁场( ): 的磁场。
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...张量成像;梯度磁场;b值 [gap=1368]Key words] Spinal cord; MRI; Diffusion tensor imaging; Diffusion sensitivity gradient; b values ...
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For the natural convection in enclosure under permanent magnetic gradient field, the way to generate different magnetic accelerations by different magnetic field arrangements is developed.
针对永磁梯度磁场作用下封闭腔内的自然对流换热,提出通过不同磁场布置产生不同磁加速度的方法。
参考来源 - 磁场作用下的对流换热及其场协同分析Besides, in order to find a simple way of obtaining oxygen-enriched air, theoretical and experimental studies on oxygen enrichment by using gradient magnetic field were done and oxygen-enriched air generated from the corresponding experiment.
此外,本文还进行了利用梯度磁场富集氧气的理论和试验研究,以期为富氧燃烧寻找一种简易、经济、节能的富氧方法,使富氧燃烧技术得到普遍推广。
参考来源 - 水平金属丝网管升膜微型燃烧器高效燃烧技术研究·2,447,543篇论文数据,部分数据来源于NoteExpress
在磁共振成像系统中,梯度磁场用来对成像物体进行空间编码。
Imaging objects are spatially encoded by gradient magnetic fields in magnetic resonance imaging systems.
试验表明,高梯度磁场捕集燃煤可吸入颗粒物是一种新型有效的方法。
Experimental results indicate that the employment of high gradient magnetic fields is an efficient new way of capturing inhalable particles originated form the combustion of coal.
报道了用超低频脉冲梯度磁场治疗肿瘤的实验研究以及对其机理的探讨。
We have reported the experiment studies on treating sarcoma with ultralow frequency pulsed gradient magnetic field and discussed its probable mechanism in this article.
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