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Iii "Cost of restoration and repair" includes all actual and projected costs of curation, disposition, and appropriate reburial of, and consultation with respect to, the cultural heritage resource; and any other actual and projected costs to complete restoration and repair of the cultural heritage resource, including its reconstruction and stabilization; reconstruction and stabilization of ground contour and surface; research necessary to conduct reconstruction and stabilization; the construction of physical barriers and other protective devices; examination and analysis of the cultural heritage resource as part of efforts to salvage remaining information about the resource; and preparation of reports.

"复原和修复成本"包括所有实际的和将发生的修补、安置和适当的埋藏文化遗产资源，并与有关方进行协商成本；所有实际的和将发生的完成复原、修复文化遗产资源的成本，其包括重建或加固成本；重建或加固围路曲面和表面成本；进行重建或加固所必须的研究成本；建设栅栏或其他保护设施的成本；作为抢救文化遗产资源残余部分努力之一的检查和分析文化遗产资源成本；撰写报告的成本。

For the sake of the image reconstruction efficiency we shortened the reconstruction time almost 100 times by parameter table method. In algebra iterative algorithm we found the range of relaxation parameter is very different. The range of relaxation parameter of ART was narrower than that of SIRT. Different methods of data access will influence on the quality of reconstruction image.

在代数迭代算法中，通过模拟图像的重建发现，ART算法和SIRT算法松弛因子的选择有很大的不同，SIRT的松弛因子选择范围偏小，而ART的松弛因子选择范围要宽得多；数据访问方式的不同，对重建的图像有一定的影响；提出了最优迭代次数的判据，避免了在迭代时迭代次数选取的盲目性。

We construct the algorithm of three-dimensions model surface reconstruction in three stages: first, we use Oct-tree to describe scatter data points in space, second find adjacent points and tangent plane and use the triangulation method to realize 3D surface reconstruction in the end, in research on algorithm of three dimensions model surface reconstruction based on scatter data points.

在"基于散乱数据三维表面算法的研究"这一章中，首先通过八叉树的数据结构的算法对三维散乱数据进行处理，然后再确定邻点和微切平面，最后用三角网格化的方法完成三维物体表面重构。

Through theoretical derivation, the author proved that the Landweber method is the transmogrification of the iteration solution of the generalized inverse, so the phenomenon that the reconstructed images of Landweber through many iterative processes is close to those reconstructed by generalized inverse method is explained, then a new reconstruction algorithm, namely pre-iteration method is presented, which divides the process of reconstruction into two steps, namely off-line pre-iteration and on-line one-step reconstruction.

通过理论推导，作者证明了Landweber法实际上可归于广义逆矩阵迭代求解的变形，从而解释了Landweber法多次迭代后，趋于广义逆解的现象。

The image reconstruction algorithms is thoroughly researched. The Filter Back Projection , Algebra Reconstruction Technology and fan beam data rearrangement algorithm used in medical computer tomography are improved. The NOSER algorithm, linear neural networks method and Hopfield neural networks method are presented and gain the better result of image reconstruction.

深入研究了图像重建算法，改进了医学CT的滤波反投影算法、代数重建技术和扇束投影数据重排方法，提出了带图像光滑约束的NOSER算法、线性神经网络方法和Hopfield神经网络方法，并得到了较好的图像重建结果。

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。

Seven patients were admitted into this department in acute phase of trauma, repair of popliteal artery in 2 patients and repair of PMC and MCL in 4 patients were performed in this phase. Arthroscopic combined reconstruction of ACL and PCL with autografts was performed in all patients from 4 to 12 weeks after trauma, reconstruction of PLC with the posterior half of biceps femoris tendon tenodesis in 3 patients and reconstruction of PMC and MCL with femoral fascia in 1 patient were completed simultaneously.

方法］自2001年9月~2005年2月，13例病人（13膝）经关节镜检查证明ACL和PCL均断裂，其中5膝伴后内侧角、内侧副韧带损伤，4膝伴后外侧角损伤，2膝伴外侧半月板破裂，1膝伴内侧半月板损伤，3膝伴动脉损伤，2膝伴腓分神经损伤。7例病人于损伤后急性期入院，2膝于急性期行血管探查修复，4膝行膝后内侧角、内侧副韧带修复。13例病人于伤后4~12周在关节镜下行自体移植物单束ACL和PCL联合重建术，其中4例同期后1/2 股二头肌腱重建后PLC，1例同期阔筋膜PMC、MCL重建。

Seven patients were admitted into this department in acute phase of trauma, repair of popliteal artery in 2 patients and repair of PMC and MCL in 4 patients were performed in this phase. Arthroscopic combined reconstruction of ACL and PCL with autografts was performed in all patients from 4 to 12 weeks after trauma, reconstruction of PLC with the posterior half of biceps femoris tendon tenodesis in 3 patients and reconstruction of PMC and MCL with femoral fascia in 1 patient were completed simultaneously.

］自2001年9月~2005年2月，13例病人（13膝）经关节镜检查证实ACL和PCL均断裂，其中5膝伴后内侧角、内侧副韧带损伤，4膝伴后外侧角损伤，2膝伴外侧半月板破裂，1膝伴内侧半月板损伤，3膝伴动脉损伤，2膝伴腓总神经损伤。7例病人于损伤后急性期入院，2膝于急性期行血管探查修复，4膝行膝后内侧角、内侧副韧带修复。13例病人于伤后4~12周在关节镜下行自体移植物单束ACL和PCL联合重建术，其中4例同期后1/2 股二头肌腱重建后PLC，1例同期阔筋膜PMC、MCL重建。

Method］from sept 2001 to feb 2005, 13 knees with combined acl and pcl tear in 13 patients were verified with arthroscopy. of them, 5 knee were combined with rupture of the posteromedial coner and medial collateral ligament, 3 combined with disruption of the posterolateral corner, 2 with lateral meniscus tear, 1 with medial meniscus tear, 3 associated with popliteal vascular injury and 2 with peroneal nerve injury. seven patients were admitted into this department in acute phase of trauma, repair of popliteal artery in 2 patients and repair of pmc and mcl in 4 patients were performed in this phase. arthroscopic combined reconstruction of acl and pcl with autografts was performed in all patients from 4 to 12 weeks after trauma, reconstruction of plc with the posterior half of biceps femoris tendon tenodesis in 3 patients and reconstruction of pmc and mcl with femoral fascia in 1 patient were completed simultaneously.

方法］自2001年9月~2005年2月，13例病人（13膝）经关节镜检查证实acl和pcl均断裂，其中5膝伴后内侧角、内侧副韧带损伤，4膝伴后外侧角损伤，2膝伴外侧半月板破裂，1膝伴内侧半月板损伤，3膝伴动脉损伤，2膝伴腓总神经损伤。7例病人于损伤后急性期入院，2膝于急性期行血管探查修复，4膝行膝后内侧角、内侧副韧带修复。13例病人于伤后4~12周在关节镜下行自体移植物单束acl和pcl联合重建术，其中4例同期后1/2 股二头肌腱重建后plc，1例同期阔筋膜pmc、mcl重建。

The curve reconstruction is the base of the surface reconstruction, but now the present solutions can\'t ensure the quality of reconstruction curve especially for the multiply connected scattered points.

散乱数据点集的曲线重建是曲面重建的基础，已有的曲线重建算法很难自动识别多连通和封闭数据点集的拓扑结构。

Through comparing with the results by simulation to study the effects of theprojectile"s final velocity, the angle of rotation and the ballistic trajectory"s migration withdifferent projectile"s rotating speeds, different target"s moving speeds and differentpenetration angles.

通过比较数值模拟的结果来研究不同弹头转速、目标速度、侵彻角对侵彻过程中弹头最终速度、翻转角度和弹道偏移的影响。

I love stationery and all the accoutrement of writing.

我爱文具以及所有的书写的工具装备。