Relative role of bed roughness change and bed erosion on peak discharge increase in hyperconcentrated floods

Relative role of bed roughness, bed erosion and channel storage on peak discharge increase in hyperconcentrated floods

Mathematical modelling of morphological changes and hyperconcentrated floods in the Yellow River Mathematical modelling of morphological changes and hyperconcentrated floods in the Yellow River

(CSC) " , " Het Lamminga Fonds " , and the Sino-Dutch collaboration project " Effects of human activities on the eco-morphological evolution of rivers and estuaries " (08-PSA-E-01) funded by the Royal Dutch Academy of Sciences (KNAW) and the Chinese Ministry of Science and Technology (MOST) within the framework of the Programme of Scientific Alliances between China and the Netherlands. Summary ...

The Effect of Bed Roughness on Depth- Discharge Relations in Alluvial Channels

Alluvial channel stage-discharge and depth-discharge relations were studied in a large sand-bed recirculating flume. From this study, it was found that the form of these relations are intimately related to: 1. Regime of flow 2. Form of bed roughness a. Characteristics of the bed material b. Concentration of fine sediment c. Temperature 3. Rate of change of discharge with time In the range of sh...

Prediction of Vegetation Cover Effect on Bank and Bed Hydraulic Roughness Coefficient in Shiraz Khoshk River

Soil and water resources management of rivers has an important role because of direct relation withdifferent systems such as earth, life, social and people. Although the use of vegetation cover inbioengineering and biological stabilization and also soil and water resources management projects hasmany advantages, but improper methods of design and implementation cause hydraulic specificationsof ...

Which bed designs and patient characteristics increase bed rail use?

BACKGROUND the design and use of bed rails has been contentious since the 1950s with benefits including safety, mobility support and access to bed controls and disadvantages associated with entrapment and restraint. OBJECTIVE to explore which bed designs and patient characteristics (mobility, cognitive status and age) influence the likelihood of rails being used on UK medical wards. METHOD ...