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The quantity analysis of porosis by X-ray computer picture system can be applied to the analysis of roentgenograms which are taken during the healing process in the cases of diaphysis fracture, such as the fracture at the distal end of radius. How well the fractured bone is healed, whether it is completely healed and whether secondary osteoporosis occurs after fixation can be analyzed quantitatively.

X线微机图像系统对骨痂生长情况的定量分析方法能对桡骨远端骨折及其它四肢骨干骨折患者不同时期所摄的X线片进行骨折恢复程度、是否痊愈、骨折固定后出现的继发性骨质疏松情况进行定量分析观察。

X-ray projectional images are very important in medical diagnostics and industrial nondestructive testing. The digitization of this technology is bound to see rapid development.

数字化图像具有非常突出的优点和广泛的应用，而X射线成像在医学诊断和工业无损检测等领域占据非常重要的地位，因此X射线成像的数字化必将成为一种趋势。

About magnetocaloric effects in Gd_(1-xTb_xCo2: The structures and magnetocaloric effects of Gd_(1-xTb_xCo_2 (x=0, 0.2, 0.4, 0.5, 0.6, 0.7, 0.8, and 1) pseudobinary compounds were investigated by X-ray powder diffraction and magnetic properties measurement.

在化合物的磁热效应研究方面，利用振动样品磁强计对Gd_(1-xTb_xCo_2(x=0，0.2，0.4，0.5，0.6，0.7，0.8和1)几个合金进行了磁性测量。

The main results are summarized as follows: X-ray powder diffraction investigation of the Pr5Si_4-xGex pseudobinary system reveals that three structurally distinct phase regions exist in the system at ambient temperature.

经1273K退后一周后，该体系只存在两个单相区：Zr_5Si_4结构的Pr_5Si_4基固溶体(0≤x≤2.8)；正交Sm_5Ge_4结构的Pr_5Ge_4基固溶体(3.0≤x≤4.0)；室温存在的单斜Gd_5Si_2Ge_2型金属间化合物相区则完全转变为高温的四方相相区。

Background and Objective Pseudohypertrophic muscular dystrophy is a kind of lethal X-chain recessive inherited disease. The etiological factor is mainly due to gene mutation of Xp21 which induce the structural and functional abnormality of a kind of cell skeleton protein: dystrophin.

背景和目的假肥大型肌营养不良症(pseudohypertrophic muscular dystrophy，PMD)是一种常见的致死性X-连锁隐性遗传病，病因主要是由于X染色体短臂2区1带(Xp21)的基因突变而导致一种细胞骨架蛋白——抗肌萎缩蛋白的结构和功能异常所致。

The algorithm is applied in the segmentation of Magnetic Resonance Imaging of human brain for the 3D reconstruction on dependent of different human tissue structures, in which the problem on wraps between different tissues and fuzzy edges between the different regions in medical volume data may better be settled, which can not be well done by the typical"hard"segmentation using binary logical representation.(3) An accelerated algorithm of volume rendering with X-ray perspective and Phong shading effect based on textures mapping and blending is presented for realizing 3D reconstruction of medical volume data by 2D texture mapping and blending, in which the accelerated algorithm of window transformation is utilized to computing voxels' gray scales and opacities to produce X-ray perspective images, and Phone illumination model is used to import world light sources and an unit spherical surface under the same shading environment as the actual volume rendering is employed to simulate the real reflectional light of per-voxel so that 3D reconstruction possesses illumination effect in the world. Furthermore, 3D matrix transformations of degree rotation and other operations of 3D object are studied, and a fast equivalent method of corresponding shading correction is brought forward to improve its interaction speed in volume rendering process.

该方法利用体数据的窗口变换加速算法将医学体数据转换为计算机显示值，可以得到具有X光透视效果三维图像；该方法提出的Phong明暗处理加速算法利用Phong光照模型引入外部光源，使用一单位球面体来仿真体数据的法线矢量集所产生的反射光强，以快速得到每一个体素的反射光强度，使物体的三维重建达到现实世界中人眼直接观察的逼真效果；此外，还研究了三维重建物体的三维旋转等矩阵变换，提出了一种Phong明暗修正的快速算法来保证了体绘制中三维几何变换的多视角观察的交互速度。

There has been more than two years since "Y beer" made by JJ group broke into the market. However, it does not perform well in X market compared to other markets, both the salse amount and market possession rate are very low.

JJ集团的&Y啤酒&进入X市场已经有两年多的时间，在其他市场获得好评和认可的&Y啤酒&却在X市场上表现很一般，无论是销售额和市场占有率都比较低。

A functionalized superparamagnetic iron oxide nanoparticles were synthesized by reduction-precipitation method, and were modified by silicane coupling agent. The nanoparticles were evaluated by diffraction, scanning electron microscope and X-ray energy spectrometer.

用部分还原－共沉淀法制备了四氧化三铁Fe3O4纳米材料，用硅烷偶联剂进行了表面修饰，用扫描电镜，X-射线粉晶衍射，磁强计，X射线能谱仪等分析仪器对材料的相关性能进行了测定。

Objective To evaluate CT and X-ray findings of spondylolisthesis and to discuss the diagnastic value of X-ray scanning technique.

目的 分析脊柱滑脱的X线、CT影像表现，探讨不同检查方法对诊断和指导治疗的价值。

The silica MSU-X type mesoporous molecular sieves were synthesized by using the polyoxyethylene stearyl ether (C18EO10) as template, the tetraethyl orthosilicate and sodium silicates as silica source, respectively.

以十八烷基聚氧乙烯醚(C18EO10)为模板剂，以正硅酸乙酯和硅酸钠分别为硅源，研究了不同pH值、反应温度、反应时间、原料比等条件下，合成的全硅MSU-X型介孔分子筛产物的结构变化规律，并通过焙烧和水热处理，考察了MSU-X介孔材料的结构稳定性。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。