牙用固位钉、镍铬合金冠等材料在快速自旋回波图像上伪影减轻。
Artifacts produced by retention pin, nickel chromium crown and so on were less severe on fast spin-echo.
最后是建立电磁波的数学模型和利用相关算法在雷达模拟器中生成雨雪的回波图像。
Finally, establish a mathematical model of electromagnetic waves and adopt relevant algorithms to generate echo images of the rain and snow in radar simulator.
通过使用雷电探测定位系统、卫星云图和雷达回波图像等资料，针对雷电数据进行技术分析。
By use of lightning detection and positioning system, satellite cloud and radar echo images as well as the lightning data are analyzed.
开展了海图数据与雷达图像的叠加研究，能够显示来自ARPA雷达的目标信息与雷达回波图像。
Research on radar image& chart graph overlapping technique in ECDIS was made, object's information from ARPA and radar echo images can be displayed.
结果表明功能图像上可见左侧初级运动皮层区的信号变化，而在本实验中梯度回波图像上结果为阴性。
The result showed that the signal changes were seen in the left primary motor cortex when EPI was used.
结果表明，渐消记忆滤波器通过引入旧数据对图像更新的影响，使得回波图像中目标位置的变化具有连续性。
The results show that the fading memory filter makes the position of target in echo images continuous by introducing the influence of old data on image update.
试验表明，该方案是解决天气雷达回波图像存储和远程传输的一种有效途径，并在气象业务工作中发挥了重要作用。
Tests indicate that this scheme is one of the effective ways to solve the problems of storage and long-distance transmission of weather radar echo images.
在海上进行探测水雷的试验中，常常因为船体的摇摆而使回波图像中目标的位置不固定，影响了水雷探测的准确性。
When we experiment on mine detection on the sea it is always found that the position of target in echo images is not fixed because of sway of ship and this reduces the veracity of detection.
对影响雷达方位分辨率的因素进行了分析，提出用于目标回波图像模拟的雷达波束数字化模型和相应目标散射模型。
This paper analyzes the factors affecting radar bearing resolution, provides digital beam model and target scattering model to simulate target echoes image.
然而，作为航海雷达图像模拟的方向，系统建模与仿真技术基本没有应用于民用船舶导航雷达模拟器中，特别是对船舶导航雷达模拟器中雨雪回波图像的模拟。
However, they are hardly used for civil ship navigation radar simulator, especially not for the simulation of echo images of rain and snow in ship navigation radar simulators.
根据该区域目标模型可以计算出测绘区域的目标回波信号，经处理后得到测绘区域图像。
With this simulation targets model, the targets return signals will be calculated. And then the images of the scanning area are given.
器官及组织反射声波即回波，回波被输入电脑并处理为图像。
Organs and tissue reflect the sound back as echoes, which are sent to a computer that turns them into a picture.
然后用快速自旋回波重T2 WI加权序列扫描，图像经最大密度投影法重建。
Then fast spiral echo sequence was used to get weighted T2WI images and the images were reconstructed with MIP(maximum intensity projection).
配合谱仪进行了自旋回波脉冲序列的成象实验，获得了较高质量的质子密度图像。
The imaging experiment of spin-echo pulse-sequence was accomplished and images of good quality were obtained by using the homemade NMR micro-imaging system.
冠状面t 1wi图像对下颌神经的显示优于冠状面t 2wi及梯度回波序列图像。
The coronal T1WI image was superior to coronal T2WI and gradient echo images in demonstrating the mandibular nerve.
在电脑制作的动画中，这帧图像为我们展示了这些来自红巨星核心的回波。
These echoes from the red giant's core are illustrated in this frame from a computer generated animation.
目的：分析TE（回波延迟时间）参数变化对MR颅脑图像分割的影响。
Objective:To analyze the variety of parameter TE(time to echo), which should influence the segmentation of MR brain images.
从对目标坐标测定仪中激光回波率的分析入手，阐明了应用图像取差原理极大地提高了测距系统的回波率的原因。
The factors that influence the laser echo rate are analyzed in this paper and then elucidated that the application of this principle improved the echo rate greatly.
通过对24例胸腺瘤的MRI图像分析，归纳出胸腺瘤在MRI各回波时间图像上的信号强度及四种信号变化模式。
The MRI findings of 24 cases of thymomas were analysed, The signal intensities and four signal change patterns on multiecho sequence imaging were established.
目的：评价呼吸导航回波触发的冠状动脉mra的效率以及心律和心率对图像质量的影响。
Purpose: to investigate the efficiency of respiratory navigator echo gated coronary MRA and the effects of heart rate and rhythm on its imaging quality.
本文从图像立体视觉出发，提出了一种利用目标照片进行三维重建进而计算其目标回波强度的方法。
In this paper, based on image stereovision, a method used for 3-d reconstruction of target image is introduced, and according to this method, target strength is calculated.
在合成孔径雷达（SAR） 中，雷达与目标之间相对运动的精确知识是相干处理回波形成高方位分辨率图像的基础。
The problems about the detection of moving objects and observation by the synthetic aperture radars(SAR) are described in this paper.
论文针对L波段ISAR，通过四个数学模型仿真了电离层引起的目标回波相位起伏、折射效应以及回波幅度闪烁对ISAR图像的影响。
This paper gives four models to simulate effects of phase fluctuation, refraction and amplitude scintillation due to ionosphere on L-band ISAR.
以及图像生成部件，从上述合成信号生成来自上述被检物体的回波的图像。
The image generating unit generates an image of echoes reflected from the object on the basis of the combined signal.
介绍了模拟港口岸形、物标回波和其他助航物标回波的生成，雷达回波的干扰、遮挡和衰减，固定距标圈、电子方位线和活动距标圈的显隐与图像的有关裁剪算法等。
Also the details about the coast, target and other navigational subjects echo and the interference of echo and Ring, Ebl, Vrm of Radar and clipping algorithm etc.
MRC采用高级转换快速自旋回波序列(FASE)，二维和三维成像，图像经最大信号强度投影(mip)后处理。
MRC was performed with 2d, 3d fast advanced spin echo (FASE) sequence. The resulting slices were reconstructed with maximum intensity projection (MIP) into composite images.
MRC采用高级转换快速自旋回波序列(FASE)，二维和三维成像，图像经最大信号强度投影(mip)后处理。
MRC was performed with 2d, 3d fast advanced spin echo (FASE) sequence. The resulting slices were reconstructed with maximum intensity projection (MIP) into composite images.
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