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- mean sediment concentration 平均含沙量
- Mean while,based on sediment-carrying capability of unidirectional flow and the concept of background sediment concentration,preliminary study on sediment-carrying capability of . 同时从单向水流的挟沙能力出发,引入背景含沙量,对长江口的水流挟沙能力关系进行了探讨。
- The result shows that the stream power, mean velocity and grain shear stress are effective in predicting sediment transport rate and the unit stream power, Froude number and Velikanov parameter are better indexes for predicting sediment concentration. 结果表明 ,水流功率、平均流速、沙粒切应力能较好地预测输沙率而单位水流功率、佛汝德数、Velikanov参数则较好地预测输沙浓度。
- This shows that it is feasible that RBF ANN is used to establish the forecast model of outflow sediment concentration. 可见,采用RBF网络建立的出库含沙量预测模型是可行的。
- The temporal and spatial distribution of water body change, and the sediment concentration in runoff increase. 水体的时空分布被改变,径流的含沙量增加。
- According to ADCP data and suspended sediment concentration, suspended sediment movement in the Yangtze River Estuary is studied. 摘要采用ADCP实测水流资料与悬沙含量实测资料相结合的方法，对长江口悬沙运动进行分析。
- In mobile bed experiments, the measurement of sediment concentration needs to be real-time and accurate. 摘要动床河工模型试验中，需要对泥沙浓度进行实时和精确的测量。
- The suspended sediment concentration in the jiaojiang river estuary area varies with space. 小潮时,南北槽均是涨潮悬沙浓度大于落潮悬沙浓度。
- A predication model of greysystem was proposed for ob servation of Grey change with the model the monthly meansediment runoff and the yearly mean sediment precipitation could be predicated. 根据灰色系统理论，建立灰色灾变预测模型，对未来月径流和流域平均年降水量模型趋势作出相应的预测。
- To calculate distribution of sediment concentration in vertical under wave and current, a model of silt diffusion coefficient distribution in vertical is set up. 为了计算波流共同作用下含沙量沿垂线的分布,建立了沿垂线分布的泥沙扩散系数模型。
- The suspended sediment concentrations from fifteen stations, observed in the mouth of Hangzhou Bay during the periods of spring, mean and neap tide, were analyzed. 本文对杭州湾口15个测站的大、中、小潮悬沙浓度的变化规律进行了分析,得出大-小潮周期流速变化和水位变化是该海区各站悬沙浓度变化的主要影响因素。
- At the ebb, the sediment concentration of the hyperpycnal flow reduces as more sediment disperses with the hypopycnal flow. 落潮时由于潮流变小,异轻流输沙量变大,此时泥沙异重流的含沙量降低。
- For the oven dry sediment,the adsorbed amount of NCB can reach 71%-82% for the sediment under 100 g/L sediment concentration. 腐殖质吸附量占总吸附量的18%25~29%25。
- Soil detachment from rill bed decreases with increase in sediment concentration in the flow, as many erosion models such as WEPP suggested. 细沟剥蚀土粒随着细沟股流中含沙量的增加而减少,这一概念已在一些侵蚀模型(如WEPP)中得到应用。
- Temporally,the suspended sediment concentration in the jiaojiang river estuary area show a neap-spring tidal cycle and flood-ebb fluctuations. 在此基础上,本文分析了椒江河口段悬沙浓度的时空变化规律。
- In this paper the leaden fish form sediment concentration gauge detector, the radiatio source automatics and the seal structure are described. 本文具体介绍了含沙量计铅鱼探测器的外形设计,放射源自动进出装置以及密封设计等问题。
- Using the above information,temporal and spatial changes of suspended sediment concentration in the jiaojiang river estuary area was analysed. 结果表明:计算结果能较准确的反映实际悬沙浓度值。
- Soil detachment from rill bed decreases with increase of sediment concentration in the flow, as many erosion models such as WEPP suggests. 细沟剥蚀土粒随着细沟股流中含沙量的增加而减少,已有的一些侵蚀模型(如WEPP)均提到了这一点。
- According to ADCP data and suspended sediment concentration,suspended sediment movement in the Yangtze River Estuary is studied. 采用ADCP实测水流资料与悬沙含量实测资料相结合的方法,对长江口悬沙运动进行分析。
- The erosive rate of materials increased with increasing sediment concentration, but was not directly proportional to the increase amount of solid. 研究表明：随含沙量的增加，材料的磨损率也增加，但不与含沙量的增加值成正比；
