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- A Study on Magnetic Field Gradient Vector Structure Used to Locate Stannic Enrichment Ore Body in Qitianling Multi-metal Ore Area, South Hunan Province 湘南骑田岭地区锡矿富集的磁梯度矢量结构研究
- magnetic field gradient vector 磁场梯度矢量
- The electric current passing through the conductor on the film of bubble generates a local magnetic field gradient to make the bubble propagate. 在磁泡薄膜上面的导体中通过电流,产生局部磁场梯度使磁泡传输。
- It has been shown that the spatial distributions of F centers in the quartz Dewar are non-uniform from ESR spectrum with magnetic field gradient and 2-D ESR images. The concentration of F center is colsely related to the irradiation direction and density. 从F心的有梯度场ESR谱和二维ESR图象可以看出;石英杜瓦中产生的F心空间分布是不均匀的;其浓度与辐照方向和辐照强度密切相关.
- Using the strong background magnetic field produced by effective electromagnet and the catching surface to produce high magnetic field gradient makes the separation of micro-grade material possible. 利用有效电磁体产生的强背景磁场和能产生高磁场梯度的捕集表面,使得分选微米级的物料成为可能。
- time-dependent magnetic field gradient 时间相关磁声梯度[核磁共振术语]
- The particle capture efficiency rises with the increase of particle magnetization, magnetic field gradient and fill ratio of ferromagnet media, and it reduces with the increase in aerosol velocity. 磁场强度和磁介质填充率的增加可以提高颗粒的捕集效率，而气体流速的增大则会导致颗粒捕集效率降低。
- When the rf pulse is combined with magnetic field gradients, a spatially encoded signal is produced that can be detected and translated into images. 当射频脉冲与磁场梯度联合起来时，我们可以探测到一个空间编码信号的产生并且将它转变成图像。
- It shows the presence of a magnetic field. 这表明有磁场存在。
- effects of internal magnetic field gradients 内部磁场梯度的影响
- Application study on the magnetic field gradient concentrating oxygen in heat power combined cycle generation 磁场梯度聚氧及其在多能源联合循环中的应用研究
- We discuss several different definitions of directional derivative and gradient vector. 摘要讨论了几种不同的方向导数和梯度的定义。
- Therefore,according to features of the contours in fabric drape images,an active contour model(Snakes model)based on the gradient vector flow(GVF) field is proposed to recognize the edges of fabrics. 根据织物悬垂图像的边缘轮廓特点,提出采用基于梯度向量流场(GVF)的动态轮廓模型(Snake模型)来识别织物的边缘轮廓。
- Objective To promote stability and accuracy of gradient vector flow (GVF) deformable models by improving external potential force field of ultrasound images under speckle noisy environments. 结果通过二值加噪图像和心脏超声图像的实验,验证了该方法的捕捉范围和处理噪声方面优于GVF。
- According to the characteristics of these systems, gradient vector flow (GVF) field links segmentation, extraction of skeleton, and registration for speeding the system processing. 根据这些系统的特点，本文提出以梯度矢量流(GVF)场为主线，连贯医学图像的分割，骨架提取和配准等算法，这样做的目的主要是加快系统的处理速度。
- Can Magnetic Field Drill through a Piece of Iron? 磁场能穿过铁片吗?
- So the gradient threshold and the Gradient Vector Flow(GVF) were introduced into the speed stopping function. 针对传统水平集分割图像会出现演化曲线停止于梯度的局部极大值或孤立的边缘处的缺点,对速度停止项进行了改进。
- The string is in a magnetic field. 振动弦处于磁场之中。
- So the gradient threshold and the Gradient Vector Flow (GVF) were introduced into the speed stopping function. 该方法将梯度阈值和梯度矢量流引入速度停止项中，利用梯度阈值来使边缘得到更好的保持；
- The force exerted by a magnetic field. 力由磁场施加的力。
