The ability of pressure-driven leaks to provide an effective barrier against microbial ingress was investigated experimentally. The leak was simulated by circulating growth promoting media through a section of flexible tubing that had a 3/4-inch breach. The flow rate of the media was adjusted until the leak was barely visible; the leak rate was minimized to enhance the possibility of microbial ...

Inundation models based on the Shallow Water Equations (SWE) have been shown to perform well for a 3 wide variety of situations even at the limit of their theoretical applicability and, arguably, somewhat beyond. One of 4 these situations is the catastrophic event of floods induced by dyke breach and consequent dyke erosion. The dyke 5 collapse is often not sudden as assumed by many flood simul...

the theory of efficient breach states that it is socially useful to breach a contract whenever the breach would leave no party worse off, while leaving at least one party better off. in other words, economic analyses of breach are mainly concerned with situations in which breach is pareto-superior, rather than just overall profit-maximizing. in contrast with moral theories that hold that breach...

Restoration of sustainable geomorphic processes that create floodplain topography through development of sand-splay complexes at intentional breaches is one method to promote variability in physical structure needed for habitat restoration. The topography of splay complexes provides a range of floodplain elevations that creates local variability in (i) inundation duration and frequency and dept...

This paper focuses on parallelization process of DaveF, a new two-dimensional depth-averaged flow and sediment transport model that allows breach development and the resulting flood wave to be simulated simultaneously. Problems encountered during parallelization and techniques used to solve them are described. The experimental results with different input data on different machines are also inc...