| 1. | Identification of static coefficients of bridge section with artificial neural network 桥梁断面静力三分力系数的人工神经网络识别 |
| 2. | In my four years tenure 1998 to 2002 the cvc was able to acquire visibility , effectiveness and credibility 在我的四年任期( 1998至2002年)内,本委员会在透明度、运作效能及公信力三方面均取得一定成绩。 |
| 3. | The identification results show that the ann has enough accuracy in identifying the aerodynamic parameters and can be used in practice 训练结果表明人工神经网络识别静力三分力系数和气动导数具有较好的精度,能够满足实际要求。 |
| 4. | Static coefficients are defined to describe the static effect of wind on bridge , and the aerodynamic derivatives are used to describe the aerodynamic effect 静力三分力系数用于描述风对桥梁的静力作用,气动导数是颤振和抖振分析方法的核心。 |
| 5. | Then the study algorithm is improved to enhance the identification result of the aerodynamic derivatives , and different bp anns are built to identify the static coefficients 然后改进了学习算法以识别桥梁模型的气动导数,并采用了不同的bp网络识别桥梁模型的静力三分力系数。 |
| 6. | The saffman force does not affect the axial velocity of the flow , while it change the concentration of the particle . the gas - particle two - phase flows in the present of temperature were also numerical simulation 讨论了绝热、有温差和添加热泳力三种情况下的两相流场,分析了温度梯度、湍动能、轴向速度和颗粒浓度的变化。 |
| 7. | It is shown that this approach is feasible and can be applied in actual bridge engineering . some experiments are done in the wind tunnel to acquire enough samples including static coefficients and aerodynamic derivatives 为了获得足够的样本数,在西南交通大学风工程试验中心进行了9个模型试验,得到了模型的静力三分力系数和一个气动导数值。 |
| 8. | From the perspectives of question awareness , value viewpoint and realistic interpretation power , literary criticism , if its should - be function in the original theoretic construction could be realized , will be an important growing point in literary theories 从批评的问题意识、价值立场和现实阐释力三个方面看,文学批评在当代原创性文学理论建构中的这种功能如能充分实现,将成为文学理论的一个重要生长点。 |
| 9. | Part four is to evaluate competitive power of urban tourism . on the basis of concluding evaluation theories of forefathers , the author probes on principles , guide ideal , contents of evaluation , creates index system from competitive achievements , potential competitive power and supporting power of tourism environment of urban tourism . ahp method is selected as a key method to evaluate competitive power of urban tourism 在总结前人评价理论和方法的基础上,探讨了城市旅游竞争力系统评价的原则、指导思想和内容,从城市旅游竞争业绩、城市旅游竞争潜力和城市旅游环境支持力三个方面构建了一套评价指标体系,并选取层次分析法( ahp )作为评价城市旅游竞争力的主要方法。 |
| 10. | With the self - developed finite element program , the soil - structure interactions and the seismic settlement of structures under earthquakes are studied , which led to several conclusions useful to seismic design in engineering practice . the preparation method of composite cemented clay samples is modified based on former researches 本文在前人的基础上改进了水泥土复合试样的制备方法,并且进行了复合试样的静力三轴试验,考虑不同置换率和围压的影响,得到了在静力有限元分析中所必需的duncan ? chang模型参数。 |