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Effect of dyes and surfactants on the dynamic behaviour of liquid—liquid gravity settlers
(1990)Colloids and SurfacesJournal Article -
Climatic change in a high-altitude Alpine area suggested by the isotopic composition of cold basal glacier ice
(1990)Annals of GlaciologyFor the first time, a cold ice cover of a summit in the central Swiss Alps has been sampled from the surface to the bed for determining its isotopic composition in δD and δ18O. Results of the analyses show a striking decrease of δ-values with depth. The δ-value differences are greater than those explicable by a direct temperature effect, but a substantial increase in melt water percolation through the firn since the formation of the deepest ...Journal Article -
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Strömungs- und Absetzverbesserungen bei Nachklärbecken
(1990)GWA: Gas, Wasser, AbwasserJournal Article -
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Design and performance of spillway chute aerators
(1990)International Water Power & Dam ConstructionAeration of high velocity spillway chute flows by aerators is widely used to avoid cavitational erosion. The preset aerator design is restricted to specific aerator geometries, however. A study conducted at the Laboratory of Hydraulics, Hydrology and Glaciology of the Swiss Federal Institute of Technology aimed to develop a design procedure for spillway chute aerators. Relationships deduced from physical models are compared with prototype ...Journal Article -
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