In this paper , the three - dimensional barotropic hydrodynamic model ( hamsom ) and the suspended particle transport model ( spm ) are used to simulate the variations in winter and summer suspended material concentrations in the bohai sea , yellow sea and east china sea 摘要采用hamsom三维正压水动力模型结合粒子追踪的悬浮颗粒物输运模型模拟了渤、黄、东海悬浮物质量浓度冬、夏季变化。
The processes of surface elevation , current velocity in the compound fluid model and suspended sediment concentration in the suspended sediment transport model are verified by observed data of many stations in flood / dry season and in spring / middle / neap tide 复合流场模型的水位过程、流速过程，以及悬沙模型的含沙量过程则经过了洪、枯季及大、中、小潮的多个站点的实测过程验证。
Furthermore , we discuss the general function of public transport model based on generalised cost and construct the optimal two - part tariffs and optimal nonlinear tariff by considering the income level of citizen . this paper also introduce the multi - mode ticket 另外还探讨了基于广义成本公共交通模型的一般函数形式,并构建了基于居民收入参数的最优两部和非线性定价模型,同时介绍了基于多方式的综合定价模型。
The sequential construction and operation of the pits has been used to develop scenarios for sediment transport modelling , assess marine traffic issues and identify key environmental issues for water quality , ecology , fisheries , human health , noise and heritage assessments 此研究利用泥坑循序渐进的施工及运作模式，建立沉积物扩散模拟方案，评估海上交通情况和找出主要环境问题，包括：水质生态渔业人类健康噪音及文化遗产评估等。
Analyses and researches the 2 channel voltage source ' s functional and characteristic requirements of the experiment system of the acoustic current transport model in the quasi - 1d electron channel . 2 . designed and realized the hardware circuit of the 2 channel voltage source 两路高精度高稳定度馈源在进行准一维电子通道量子化声电流输运实验的中得到了很好的使用效果,在国内首次观察到了在甚低温下准一维电子通道的电导量子化现象。
The sequential construction and operation of the pits has been used to develop scenarios for sediment transport modelling , assess marine traffic issues and identify key environmental issues for the water quality , ecology , fisheries , human health , noise and heritage assessments 此研究利用泥坑循序渐进的施工及运作模式，建立沉积物扩散模拟方案，评估海上交通情况和找出主要环境问题，包括：水质生态渔业人类健康噪音及文化遗产评估等。
In this paper , a brief introduction of hydrodynamic , sediment transport model and its application in engineering projects are reported . 2 . the equations are derived using a tensor analysis of two - phase flow , and the background of basic equations and parameters in the numerical model are discussed 本文采用非交错曲线网格二、三维水流泥沙数值模型研究感潮河道水流泥沙问题，主要内容有： ( 1 )综述水流泥沙数值模型的发展概况，及其工程应用。
Through using the object - oriented technology , the paper analyzes the mpeg - 4 file format , at the same time it does some research and real work in the area of networking transport model . these works can be referenced by further research and development based on mpeg - 4 streaming system and are valuable 通过使用面向对象技术对mpeg - 4文件作了深入剖析，并在网络传输模型方面做了理论和实践研究，为进一步研究和开发基于mpeg - 4的流媒体软件系统奠定了基础，具有一定的参考价值。
The numerical simulation is an effective method . the main task of this dissertation is to establish a hydrodynamic and pollutant transport model , and to simulate the tide field and concentration field of hakata bay : ( 1 ) dispersing the long - wave equation on interlaced grid by adi method , a two - dimension hydrodynamic model is established to simulate the tidal flow in hakata bay under the effects of m _ 2 , s _ 2 , o _ 1 , k _ 1 tide 本文的主要工作是建立一个深度平均的二维水动力及污染物扩散输移的数值模型，并对一实际海湾的潮流场及浓度场进行数值模拟： ( 1 )用深度平均浅水波动方程为控制方程，采用迎风adi有限差分方法(交替方向隐式法)在矩形交错网格上离散潮波方程，建立了一个二维潮流数值模型。
In order to calculate depth - averaged two - dimensional ( 2 - d ) suspended sediment transport under waves and currents in the yangtze estuary , a numerical model system is developed . four models , a 2 - d compound fluid model including wind , waves , tides and river runoff , a swan wave model , a wave - current bottom boundary layer model and a 2 - d suspended sediment transport model are integrated 本文建立了一个用于波?流共同作用下长江口平面二维悬沙计算的数值模型系统，主要由四部分组成，即考虑风、浪、潮、径流的二维复合流场模型、 swan海浪模型、波?流相互作用的底边界层模型以及二维悬沙输运模型。
