数值分析

Through the design of AGP-test equipments and methods which could simulate the impact of input of exogenous nutrients on eutrophication, the evolution of algae and aquatic species extinction process in Miyun Reservoir under different environmental and nutritional conditions are simulated. Then the ratio growth rate in the three simulation stages are simulated and analyzed combining the numerical analysis software MATLAB 7.0. At last, the conclusion that in the three designed stage, the total phosphorus threshold which leads to a water bloom in Miyun is respctively 0.053mg/L, 0.062mg/L, 0.064 mg/L is educed. Based on the regression relationship of total phosphorus,chlorophyll-a, total nitrogen, and the transparency,we compartmentalized the evaluation standard level of eutrophication in Miyun Reservoir.

通过设计模拟外源输入对富营养化作用的AGP试验装置和方法，模拟了不同环境条件、营养条件下密云水库优势藻种演变和富营养化过程，结合使用MATLAB 7.0数值分析软件，对3期模拟时段的比增长率进行拟合分析，得出3期设计阶段密云富营养化发生的总磷阈值为0.053mg/L、0.062 mg/L、0.064 mg/L，再根据总磷与叶绿素a、总氮、透明度之间的回归关系，划分了密云水库富营养化的评价标准级别。

This paper put forward a digital algorithm-Analytical recursion scheme method for the structural dynamics to solve the earthquake response problem of the soft clay foundation. From the outcomes of the research, we will find that analytical recursion scheme method can obtain more accurate calculating results, and it is unconditionally stable and convergent.

本文引入"结构动力学数值分析解析递推格式法"求解软土地基地震反应分析问题，论文研究表明，解析递推格式方法计算精度较高，是无条件稳定的算法，可以解决不等时间步长问题。

In order to analyze the stiffness of 3D 4 directional braided composites, the homogenization theory based on the multi-scale perturbation theory was used as the basic theory. The virtual displacement principle was used to educe the homogenization formulation of effective elastic modulus and the schemes to solve the problem using finite element method. The effective elastic modulus of 3D braided composites were predicted by this method and the calculation results agree quite well with experiment results.

在对三维编织复合材料刚度性能的分析过程中，以基于小参数渐近展开和多尺度摄动方法的均匀化理论为理论基础，用虚位移原理导出了等效弹性模量的均匀化列式及其有限元求解方程，从而通过细观和宏观有限元的数值分析方法预测了三维四向编织复合材料的等效弹性模量，预测结果与实验结果较为吻合。

In order to investigate buckling mode, buckling load and failure mode of structure, shear experiments were conducted for stiffened thin-walled composite plate. Finite element method was also used to analyze the buckling behavior of that composite structure. Analysis results reveal buckling mode and buckling loading of finite element analysis are accordable with experimental results.

通过对复合材料薄壁加筋板结构进行剪切载荷下的屈曲试验研究，得到结构的屈曲模态、屈曲失稳载荷以及破坏形式，并通过有限元方法对结构的屈曲进行数值分析，分析得到的复合材料薄壁加筋板结构的屈曲模态和试验结果一致，屈曲载荷与试验结果吻合较好。

In numerical simulation, the distribution of polygonal cracks was simplified as an axisymmetrical problem with a double hardening elasto-plastic model adopted for soil skeleton.

数值分析中将多边形网状分布的裂缝简化为轴对称问题，对土骨架采用弹塑性的双硬化模型进行描述，并分析了不同参数对裂缝宽度和深度影响的敏感性。

The courses in this academic program are political theory, foreign languages, applied computational technology, experimental biology, microbiology, molecular biology, genetic engineering, bioseparation engineering, bioreaction engineering, chemical thermodynamics, mass transfer, chemical process simulation, pharmacology, preparation of finished traditional Chinese medicines, pharmaceutical chemistry, GMP in pharmaceutical industry, liquid-to-liquid extraction, pharmaceutical properties measurement and quality control, pharmacy administration, etc.

其工程硕士学位授权单位培养从事生物制药、合成制药、中药开发、药剂、药物性能检测与分析的高级工程技术人才。研修的主要课程有：政治理论课、外语课、数值分析、计算机应用技术、现代生物学与技术实验、现代微生物学、分子生物学、基因工程、生物分离工程、生物反应工程、化工热力学、化工传递过程原理、化工过程模拟、药理学新进展、中成药的制备、药物化学的进展、制药工业的GMP、液液萃取基础、药品性能检测与质量控制、药业管理学等。

The technique of CAE about injection molding is based on polymer processing rheology and conductive calorifics. It simulates the actual process of melt filling, packing and cooling by setting up mathematic and physical models about melt flowing and heat transmitting in the mold cavity, and working out the results by the theory of numerical value analysis. It can also list the processing parameters quantificationally such as pressure, time, temperature, speed, etc, and reflect the results visually by computer figures.

注塑模CAE技术是根据塑料加工流变学和传热学的基本理论，建立塑料熔体在模具型腔中的流动、传热的数学物理模型，利用数值分析理论构造其求解方法，模拟出实际成型中熔体的动态填充、保压、冷却过程，定量地给出成型过程的状态参数(压力、时间、温度、速度等)，并利用计算机图形学的技术，可形象而直观地反映出分析的结果。

The author analyzed the pozzolanic effect of high strength high performance concrete containing X FLOUR using the numerical analysis method of the pozzolanic effect.

作者运用火山灰效应的数值分析法分析了X粉高强高性能混凝土的火山灰效应。

CAE technology , representatively FEA method , plays a more and more important role in the design of modern car products along with the development of computer technology and numerical calculation theory .

随着计算机技术和数值分析理论的发展，以有限元分析技术为代表的CAE技术在现代汽车产品设计中扮演着越来越重要的角色，几乎贯穿了汽车设计的全过程。

Numerical simulation of micropolar fluids elastic lubrication with mixed friction in mechanical seal;2. The basic line contact elasto-hydrodynamic lubrication equations for micropolar fluids were developed on the basis of the theory of micropolar fluids.

应用微极流体理论，考虑流体的可压缩性，建立线接触微极流体动力润滑的基本方程，进行固液两相流体稳态流动弹流润滑数值分析，获得了润滑油膜压力、形状以及摩擦力分布，分析了微极参数对润滑性能的影响，并与不可压缩流体结果进行比较。

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。