A suite of physical-biological models was used to explore the importance of mortality and fluid dynamics in controlling concentrations of fecal indicator bacteria (FIB) at Huntington Beach, CA. An advection-diffusion (AD) model provided a baseline to assess improvements in model skill with the inclusion of mortality. Six forms of mortality were modeled. All mortality models performed better tha...

The article addresses the recent proliferation of Cross-Border Regions, or Euroregions, across the EU. It aims to explain why they have been more successfully institutionalised in some areas while they have had less success in others. It conceptualises Euroregions as the outcome of policy entrepreneurship strategies through which support is mobilised on the local level and the Euroregions are i...

The aim of this article is to expand the general approach flexible beam model consider tapered geometry and anisotropic properties by updating cross-sectional stiffness matrix. advantage that continuously variable cross-section, as well irregular axes on cross-sections, are considered simultaneously co-rotational method. Anisotropic isotropic cantilevered cases simulated. A static force or mome...

This work establishes a fine model reflecting the characteristics of immersed tube structures to study spatial mechanical variable cross section tunnels. Then, behavior pipe segments under differential deformation is explored, based on which we propose formula for estimating shear key force and analyze corresponding failure mechanism mode. Thus, critical points segment design are specified. The...