| 1. | Derivation of the optimal self adjusting varialle scale
最优自调节变尺度法的导出 |
| 2. | Research on asset - liability quantity indexes based on cvmo1 - optimum
基于约束变尺度法的资产负债数量指标优化研究 |
| 3. | Reconstruct the iceit images using the bfgs variable metric method and obtain better images . 5
将数学中的bfgs变尺度法应用于iceit的成像，改善了成像结果。 |
| 4. | Finally , we analyzed the performance and problems of the system and discussed the possible methods to improve its accuracy in the further research
采用bfgs变尺度法对基于物理模型的测量数据重构图像，得到了较为理想的成像结果。 |
| 5. | Abstract : the paper gives a calculation method of nonlinear least square adjustment for different types of observation value , which reduces the dimensions of a big equation based on bfgs method
文摘:该文针对不同类型观测值的非线性最小二乘平差，介绍一种将问题分离后再解算的基于变尺度法的解析方法。 |
| 6. | The author developed and made advanced the common program 3dcbem , selected cvm as the optimize algorithm . a integrated shape optimization software system of 3 - d elastic contact program based on 3dcbem was constructed
作者完善和发展了三维弹性物体接触应力通用边界元分析程序3dcbem ；选取约束变尺度法作为优化算法，构建了一个完整的三维弹性接触问题形状优化软件系统。 |
| 7. | We reconstruct the dynamic images using the data measured from our physical phantom . the bfgs variable metric method is nonsensitive to noise , the result background is even on the whole . the objects in the images are clear
基于物理模型的实测数据的成像结果表明： bfgs变尺度法抗噪性能较好，图像的背景比较均匀，目标清晰；目标图像的大小与实际大小接近，定位较准确。 |
| 8. | At present , constrained optimization methods may be classified to two classes , one is search method which firstly asserts whether the current point is an optimal point , if the point is not , then we must choose search directions , and along the search direction , find the next iterative point which make the objective function or merit function to decrease
目前的约束优化算法可以分成两大类，一类是搜索算法，这种算法首先判断当前点是否为最优点，若非最优点则要确定搜索方向，然后沿此方向确定一个使目标函数或评价函数下降的点。这种算法一般为下降算法，如可行方向法、约束变尺度法等。 |
| 9. | Optimal design with three variables is then done to the elbow - bar mechanism of the mp1040b moulding machine by utilizing the method of punishing function for constraint problems and variational scale for unconstraint problems . the optimal target function is the maxium of gradient in one work travel for the moulding plank of the elbow - bar mechanism . the result shows that the maximal gradient of moulding plank in one motion period declines by 25 . 7 after optimization , and the angular acceleration of the bottom moulding plank decreases greatly
动力学分析中，各构件的质量和转动惯量是通过pro / engineer软件，先建立各个构件几何模型而求得；然后，利用解决约束问题的罚函数法和处理无约束问题的变尺度法对mp1040b型模切机肘杆机构进行三个设计变量的优化设计，优化目标函数为肘杆机构的下模切板在一个工作行程中达到的最大倾斜程度；通过优化设计，模切机肘杆机构的下模切板在一个工作行程中的最大倾斜程度降低了25 . 7 ，其角加速度明显减小，提高了模切机动力学性能。 |
| 10. | The structure and the thickness and optical constants of each layer determine the reflectance of the thin film system . we made simulation of the determination of layer thickness of thin film system from is spectral reflectivity curve . the selected algorithm includes simulated annealing algorithm , genetic algorithm , conjugate gradient algorithm and dfp algorithm
我们对不同结构的膜系进行了理论模拟，并首次引入全局优化算法，如遗传算法、模拟退火法等，和超线性算法，如共轭梯度法、变尺度法等，对膜系的光谱特性曲线进行反演，求解出其结构参数。 |
