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The characteristic, difference and relation of the normal and inverse design are compared detailedly. The formula of the first and second class eigen sensitivity are given. For the horizotal vibration system of building structure, the sensitivity method and perturbation method are adopted to modify the dynamic characteristics. The inverse eigenvalue problem of Jacobi matrix and the positive, symmetry, band matrix are studied. The method of Evolutionany Computation is first used in the inverse design of building structure, the principal problems are studied. The features of aseismatic inverse design of building are analysed.

本文较详细地比较了正、逆设计的特点；给出了特征值和特征向量的一阶和二阶灵敏度分析公式；对于建筑结构水平振动系统，提出了结构动态特征的修改方法；对Jacobi矩阵及实对称带状矩阵的逆特征值问题进行了分析研究，首次将其引入建筑结构抗震逆设计中；首次将进化计算方法应用于建筑结构抗震逆设计中，对主要问题作了探讨；对建筑结构抗震逆设计的特点进行了分析，提出未来的发展方向和前景。

This paper presents a fast algorithm based on the measured equation of invariance.Conformal meshes are made along the surface of two-dimensional scatterer.Renumbering of nodes changed the original sparse matrix into band one,and the consumption of computer memory and CPU time decrease from O(N2) to O.Via this new algorithm,electrically large problem can now be rapidly solved.

提要 本文基于不变性测试方程法提出一种快速算法，在二维散射体表面建立共形差分网格后，通过对节点的重新排序，将原问题中的稀疏矩阵变换为带状稀疏阵，从而使占用的计算机内存和计算时间均由O(N2)下降为O，可以解决原来无法计算的问题。

In this paper, the dynamic compressing experiments for the matrix material of the tungsten alloys which have been three different deforming(0%、 32.6%、 44.6%) processed have been performed by the experimental technology of separated Hopkinson pressure bar and many accurate datum have been obtained. Also the three materials have been compared with each other and analyzed. The results show that the optimized values are in a certain range to optimize the materials by changing their deforming technology. The parameters of constitutive model of Johnson-Cook have been fitted based on the datum. Then proceed to the next step, adiabatic shear band of these three matrix materials has been analyzed with finite element method. The result shows that the relations between stress and strain are different because of the differences of technical process of the three materials, but they are in great commonness in the material experiment and in great coherence in the distribution of time and space, which can been seen from the space distributing figures of plastic strain.

利用分离式Hopkinson压杆实验技术对三种不同变形量(0%、32.6%、44.6%)钨合金基体材料进行动态压缩实验，取得大量精确的数据，对比分析三种材料，结果表明通过改变变形量对材料进行优化，其变形量的优化值是有一定范围的；本论文拟合、确定了钨合金基体材料Johnson-Cook本构模型参数并对三种基体材料绝热剪切带进行有限元分析，结果表明三种材料由于工艺流程的不同，应力应变关系也不尽相同，但从塑性应变的空间分布图上体现了材料很大的共性和时间以及空间分布的一致性。

Using a method for storing the large-scale sparse matrix with varying band width, Cholesky decomposition, Green function and normalized least square fitting inversion, the paper improved the computing accuracy and efficiency in imaging calculation.

利用有限元方法实现了井间电磁成像，为了求取散射电磁场的积分方程组，运用了处理大型对称变带宽方程组的 Cholesky 分解法，反演时使用了格林函数和最小二乘法，既提高了反演速度又提高了反演质量。

Technology and brand are the foundation of Samplex's stongthen , for many years, the company has devoted to the technical research and development and the brand construction, leads the profession development by the technology, added product value by the brand promotion, under this kind of development mentality's direction, the company has promoted the Samplex brand, its product line including the DID liquid crystal splicing demonstration wall, the large-scale ultra-wide band RGB matrix, the VGA matrix, the AV matrix, the multi-screen splicing image processor, the picture decollator as well as each kind of signaling equipment and so on, the Samplex product passes through tests strictly, guaranteed that will achieve the ultra strong stability, the factory always take the ISO9000 quality system as the guidance,help the user makes the high added value product which is worth trusting.

技术和品牌是赛普公司发展壮大之基础，多年来，公司一直致力于技术研发和品牌建设，以技术带动行业发展，以品牌提升产品附加值，在这种发展思路的指引下，公司推出了Samplex品牌，其产品系列包括DID液晶拼接显示墙、大型超宽带RGB矩阵、VGA矩阵、AV矩阵、多屏拼接图像处理器、画面分割器以及各种信号传输设备等，Samplex产品经过严格测试，以确保达到超强的稳定性，工厂将一如既往的以ISO9000质量体系为导向，为用户制造出值得信赖的高附加值产品。

Due to the quantum effect of nanocrystallites, the 〓/MCM-41 mesophase not onlydisplayed the characteristic narrow emission based on the f-〓 electronic transitions,but a wide emission band of the MCM-41 matrix.

在制膜的过程中，溶胶液的浓度、陈化时间、铺膜厚度、溶剂挥发速率以及基片的清洁度等因素直接影响到所得薄膜的质量，如透明性、均匀性和致密性等。

Using varied band matrix and one-dimension array to collect the large sparse matrix, the integral coefficient of all the nodes, we could save memory space.

采用变带宽、一维数组方式只存储稀疏刚度矩阵中非零元索，能够节约内存。

Remember the first time you went to a show and saw your favorite band.

记住你第一次去表演活动，看你喜爱的乐队。

Therefore, the traditional band saw the equipment to a certain degree of improvement is pressing issues.

因此，对传统带锯设备经行一定程度的改进是迫在眉睫的问题。

It was much easier to cut these on the band saw instead of doing it by hand after gluing.

这是容易得多，以减少这些对带锯而不是做它的手后粘合。

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。