| 1. | Experiment research on subgrade frost heaving of expressway in seasonally frozen soil region
季节冻土区高速公路路基冻胀试验观测研究 |
| 2. | 5 a seepage instrument is designed to test the leakage of the defected composite geomembranes
5 、自行设计试验装置，对复合土工膜的缺陷渗漏量进行试验观测研究。 |
| 3. | According to the observations of experiments and the knowledge of electrostatic spray , the process of electrospinning polymer fibers is analyzed
结合试验观测及静电喷雾技术等知识，对电纺丝形成纤维的过程进行分析。 |
| 4. | With the kind assistance of cathay pacific , an airbus has recently been equipped with the amdar reporting software in preparation for an observation trial
在国泰航空公司协助下，目前已有一部空中巴士装设amdar报告软件，准备进行试验观测。 |
| 5. | With the kind assistance of cathay pacific , an airbus has recently been equipped with the amdar reporting software in preparation for an observation trial
在国泰航空公司协助下，目前已有一部空中巴士装设amdar报告软件，准备进行试验观测。 |
| 6. | A preliminary study on laws of soil and water losses in gneiss , which is the main type of rocks in taihang , was carried out in this paper on the bases of examination data , survey of flood and historic statistic data
根据试验观测数据和洪水灾害考察结果，结合历史统计资料，对河北太行山的主要类型岩石片麻岩低山区的水土流失特点进行了初步研究。 |
| 7. | Based on underwater vehicle ' s nonlinear differential equation and observation equations , swarm intelligence algorithm is used to identify ten hydrodynamic parameters from simulation observed data of the motions of underwater vehicle
摘要通过水下航行体的状态方程和试验观测方程，利用智能辨识技术对水下航行体的模拟运动数据进行了仿真辨识，求得了10个水动力参数。 |
| 8. | Through theoretical computation and experimental observation , it is put forward that the maximal depth of the scoured pits of the embankment is from ten to thirteen meters , and for several pits whose top are rinsed by main flow continuously , their scoured depth have reached twenty meters
经过理论计算和试验观测研究，提出了仁存渡以下沙质河床，丁坝最大冲刷坑水深为10 ? 13米，个别受主流持续顶?的丁坝，最大冲刷坑水深可达20米。 |
| 9. | The first stage is primary slip then followed by secondary slip ; the last stage is due to dislocation passing the slips . the cyclic stress strain ( css ) curve exhibits a stronger hardening occurred in cyclic plastic deformation than that in tensile test
建立了拉伸和应变疲劳的有限元模型，使用基于晶体滑移模型的数值方法，对晶体内部滑移系的启动以及滑移系上的分解切应变、切应力这些无法试验观测的变量进行计算，分析它们对晶体塑性变形的不同影响。 |
| 10. | Abstract : artifical intelligence methods are implemented to simulate thebehaviors of axially and laterally loaded piles using the field observation tests data obtain ed f rom the drilled shafts and driven piles . the optimal neural network model is deve loped using only simple input data of spt - n values and piles ' geometrical featu r es etc . . the analysis for r . c piles of some projects is performed adopting the bp n n and grnn models respectively , and the obtained predicated results are compared w ith the data from conventional design method . it demonstrated the obvious advanta ges of neural networks in the design of pile foundations over the traditional me thods . this paper has an important practical significance and a referential worth iness in the design of pile foundations
文摘:根据钻孔桩和打击桩的原型试验观测的数据,运用人工智能方法对横向承载桩和轴向承载桩的工作特性进行模拟,并利用标准贯入试验( spt - n )值和桩的几何特性等简单的输入数据,开发出相应的优化神经网络模型;然后,运用反向传播神经网络模型和广义回归神经网络模型分别对某工程的钢筋混凝土桩进行分析,并将求得的预测结果与常规设计法的结果进行比较,结果表明神经网络方法比传统方法有明显的优越性,在实际工程设计中具有重要的参考价值和现实意义。 |
