| 1. | The problem of determining critical conditions for entrainment of sediment has long been considered .
确定泥沙起动的临界条件问题已经研究很久了。 |
| 2. | Critical shear stress of incipient motion of sediment
泥沙起动临界切应力研究 |
| 3. | Incipient motion of riverbank sand subject to seepage
渗流作用下的岸坡泥沙起动条件 |
| 4. | Study on standards for incipient motion of sediment
泥沙起动判别标准探讨 |
| 5. | A apparatus designed for testing the characteristic of bedload startup
泥沙起动特性测试仪研制 |
| 6. | According to some previous results , the relationships among three common incipient motion conditions are deduced
摘要从泥沙起动的己有研究成果出发，推导出常见的3种泥沙起动条件的转换关系。 |
| 7. | Considering these relationships , dozens of incipient motion conditions are united , and k of all kinds of formulas is otained commonly from 3 . 37 to 7 . 86
利用这些关系，将国内外现有的几十种泥沙起动条件进行了统一，可得各种公式的k值一般在3 . 37 ~ 7 . 86之间。 |
| 8. | The data forecasted by network experiment data and data computed by classical regression model are compared and analysed from the comprehensive angel of sediment incipient motion theory and ann theory
最后从泥沙起动输移理论和神经网络理论的综合角度，分析比较网络预测值和实测值、传统模型回归计算值。 |
| 9. | First , total resistance is derived by summing different resistance components . the relationship between resistance of still plane bed and energy slope has been proposed from the similarity between sediment incipient motion and still bed resistance . and this relationship can be used in computing grain resistance
一是从不同的床面阻力单元出发，利用泥沙起动与定床阻力之间的相似性研究了静平整床面的阻力，建立了静平整床面阻力与能坡之间的关系式，并将此式用于沙粒阻力的计算。 |
| 10. | In this dissertation , on the basis of comprehensive review of the study achievements on sediment transport , we get the fact that most of formula in sediment incipient motion and bed - load transport rate are established by classical regression analysis model , i . e . firstly establishing the formula according to related sediment transport theory , secondly computation for regression coefficients in formula by using field or laboratory experiment data
故本文在回顾并总结泥沙输移研究成果的基础上，指出大多数泥沙起动公式和输沙率公式的推求是采用传统回归模型，即先根据输沙理论定出计算公式，再用实测资料或试验数据率定公式系数。 |
