Utilizing high-energy γ-photons for high-resolution ²¹³Bi SPECT in mice

The combined α-, γ-, and x-ray emitter ²¹³Bi (half-life, 46 min) is promising for radionuclide therapy. SPECT imaging of ²¹³Bi is challenging, because most emitted photons have a much higher energy (440 keV) than common in SPECT. We assessed ²¹³Bi imaging capabilities of the Versatile Emission Computed...

Resonance characteristics of tides in branching channels

Effect of bottom stress formulation on modelled flow and turbidity maxima in cross-sections of tide-dominated estuaries

A three-dimensional numerical model with a prognostic salinity field is used to investigate the effect of a partial slip bottom boundary condition on lateral flow and sediment distribution in a transect of a tidally dominated channel. The transect has a symmetrical Gaussian cross-channel bottom profile. For a deep, well-mixed, tidally dominated...

Lateral entrapment of sediment in tidal estuaries: An idealized model study

Two physical mechanisms leading to lateral accumulation of sediment in tidally dominated estuaries are investigated, involving Coriolis forcing and lateral density gradients. An idealized model is used that consists of the three?dimensional shallow water equations and sediment mass balance. Conditions are assumed to be uniform in the along...

Approaches to long-term modelling of coastal morphology: A review

Waterbouw: Rekenregels voor waterbouwkundig ontwerpen

Overzicht van rekenregels voor de waterbouw: golven, sedimenttransport, interactie tussen golven en constructies, golfkrachten, bodemverdediging. Regels zijn verwerkt in computerprograma www.cresss.nl.