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The influence of PDIC position error on the DPD signal is analyzed and computed using the DVD-ROM parameters based on the optic disk scalar diffraction model.

在光盘标量衍射模型的基础上，引入光电探测器的位置误差参数，根据DVD-ROM的盘片参数，计算并分析了位置误差对差动相位探测信号的影响。

The cutter-suction dredger is selected according to different operation condition, and the production capacity of dredger is computed by use of different character theory (dredge pump, pipeline character and excavation character), which can fully embody the production capacity of the dredger and ensure the construction progress.

特别是选用绞吸挖泥船施工，根据不同的工况条件，采用不同的特性理论(泥泵及管路特性、挖掘特性)对挖泥船的生产能力进行计算，可以充分发挥船舶的生产能力，保证施工进度。

DRIFT ANGLE, An angle computed by subtracting the airplane heading from the airplane track.

偏流角，飞机的航向与飞机的航迹的差角。

The artifacts in computed radiographic system are relevant to system software and hardware, dust as well as operators.

熟悉CR伪影的表现及产生原因有助于减少和消除伪影，提高影像质量。

The artifacts in computed radiographic system are relevant to system software and hardware, dust as well as operators.

结果：在随机抽查样本中66福图像存在伪影，CR图像伪影的产生与系统软硬件因素、灰尘因素、操作者因素等CR成像的各个环节有关。

There were six themes in this study. First of all, the geometry of in-vivo human pinna and ear canal was measured non-invasively. The 3D model of pinna and ear canal was reconstructed and then measured based on the image processed by HRCT. Second, the 2D curvature of in-vivo human ear canal was measured non-invasively. The angles and curvatures of superior and inferior walls of first and second bends were measured. The 2D curvature of ear canal was computed by sine and cosine laws. Third, the in-vivo human ear canal was reconstructed by RE. The distribution of sound field was analyzed by FEM. The data obtained in this study can be the reference for clinicians and audiologists. Fourth, the 3D model of earmold of hearing aids, including the ear shell and the housing, was reconstructed by RE based on the image of in-vivo human ear canal obtained by CT.

本研究主题其四，对於听力受损之患者往往皆须选配助听器帮助其放大声音，其中耳模是助听器的外壳，也是接触到耳朵的仪器，而耳道型助听器系位於耳甲艇及耳甲腔延伸至耳道第一弯道处，在制作耳模必须利用灌模方式来取得紧配之耳模，其中耳模在助听器的使用过程中，常因耳模松脱，无法与人耳道紧密配合而造成漏音，因此，利用活体人外耳道电脑断层影像，重建耳道型助听器耳模之三维立体模型影像，其中耳模包括了耳壳及耳模内部空间，并进行几何外型量测，探讨耳道型助听器之体容积大小，也提供了制作耳模时快速、精确度高、减少翻模及修模次数，可减少误差率之方法。

Besides, theoretical arrival azimuths were computed by using the velocity model from a previous tomographic study.

同时利用以前研究中得到的剪切波速度模型计算了Love波到达台站的理论偏离情况，大多数理论计算与实际观测结果的偏离方向基本一致，但理论偏离角通常小于观测值。

Pulmonary bullas ; emphysema ; tomography ; X-ray computed

肺大泡；肺气肿；体层摄影术； X线计算机

IUsing 146 cepheids selected from the data listed by Kraft and Schmidt,the variation of Δω with R is computed by means of Camm's method.

i利用克拉夫特和施密特列出的造父变星资料中146个星的资料，用加姆方法计算了Δω随 R 的变化。

According to the distances, the SPWUG algorithm computed the initial partition of the coarsest graph by extending the Laplacian spectral graph theory from the unweighted undirected graph into the weighted undirected graph.

SPWUG算法借助Laplacian矩阵次小特征值对应的特征向量，刻画了节点间相对距离，将基于非赋权无向图的Laplacian谱理论在图的剖分应用方面扩展到无向赋权图上，实现了对最小图的初始剖分。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。