According to dou guoren ' s similarity theory of total sediment transport modeling for estuarine and coastal regions , a generalized physical model of the north - trough of the yangtze river estuary deep channel is designed 摘要根据窦国仁波浪潮流共同作用下的全沙模型相似理论，设计了长江口深水航道北槽概化物理模型。
It was obtained through the analysis and verification of the construction data of the main step for reservoir excavation that the generalized model of sediment set up and the all the forecast resuits of sediment are successful 经过对库区开挖主要阶段施工资料分析与验证得知：所建立的冲淤概化模型和整个淤积预报都是成功的。
The percolation process of wsps is taken as a unit , and a simplified contamination percolation process combined functional model is put forward , in which includes four layers as bottom sludge layer , substrate layer 把稳定塘中污染质的下渗过程看作一种单元系统，提出了概化的稳定塘中污染质下渗单元耦合功能模型，对各功能层的功能进行了描述。
The outline tests on the alignment of spur dikes in the flume with repeated tidal flow were carried out based on the alignment of the regulation structures in the north trough of the deep waterway in the yangtze estuary 摘要结合长江口深水航道治理二期工程北槽中整治建筑物的布置形式，在潮汐往复流水槽中进行了丁坝群不同布置形式的概化试验。
Based on theory of water travel in catchment and reasoning formula , a new calculation model for flood flow design of culvert and small bridge in sichuan hilly area where is no runoff data is derived in the paper 因此，本文以著名的流域汇流公式为主，引入推理公式的思想，进行合理的概化导出了适合于四川丘陵地区无径流资料的中小桥涵设计洪水计算的新模型。
After this , a suitable model was proposed to be used to forecast 10 day runoff towards liujiaxia and longyangxia reservoirs both of them being settled on the upstream of the yellow river . the conclusion drawn from the studies are as follows 得出的研究结论和主要成果如下： ( 1 )在资料条件较好时，多元回归模型、概化坦克模型、神经网络模型和具有成因概念的系统模型都具有一定的实用性。
The acs algorithm inspired by the ants foraging principle is used to solve the problem of the homogenous frequency enlargement of design flood in this paper , the sketch of ants foraging about design flood computation is constructed and retailed process is provided 摘要采用蚁群acs改进优化算法求解了典型洪水同频率放大问题，构造了用于设计洪水过程求解的蚂蚁觅食概化结构图，并给出了具体求解思路和流程。
This paper studies the influence of different riverside shape on the flow condition of low - head hydraulic lock ' s outlet area through mathematical computation and examples of project , and finds out the riverside shape which is the most advantageous one 摘要通过概化模型计算并结合工程实例分析，研究了凹形和凸形河岸对低水头枢纽船闸口门区水流条件的影响，指出了对低水头枢纽船闸口门区通航水流条件相对有利的河岸形态。
Based on the simplified structure of rock mass , three - dimensional finite element numerical modeling technique is used to analyze systematically the distribution features of filed , strain field and plastic zone in the surrounding rock mass of the underground cavities after the excavation 在岩体结构模型概化的基础上，采有三维有限元数值分析方法，系统研究了大跨度、高边墙地下洞室群开挖完成后围岩的二次应力场、变形场和塑性破坏区的变化特征。
( 4 ) both multi regression model and generalized tank model have high precision in calibration stage , but sharply decrease in verification . beside that , the quantity of observed data is vital for these two models . so it is suggest that the models be not adopted when data sequence is less than 12 years 西安理工大学硕士学位论文( 4 )多元回归模型和概化的水箱模型，在建模时精度较高，检验时下滑，而且对资料系列长度的要求比其它模型要多得多，在资料不足12年的情况，建议不要使用这两个模型。
