We propose a hybrid method to solve time-harmonic Maxwell's equations in R^3 through the Finite Element Method (FEM) in a bounded region encompassing parameter inhomogeneities, coupled with the Multiple Multipole Program (MMP) in the unbounded complement. FEM and MMP enjoy complementary capabilities. FEM requires a mesh of the computational domain of interest. This is expensive, but can treat inhomogeneous materials, shapes with ...

Electrical power systems have been a part of daily life for more than a century. It is therefore no surprise that there has also been an active research field surrounding both operation and design of such systems. The tremendous increase in computational power available in the past few decades has enabled the application of advanced numer- ical methods for solving problems that thus far could only be solved approximately or heuristically. ...

Slope instabilities adversely affect mountainous regions by posing direct and indirect hazards. Landslides can evolve in catastrophic failures that can directly cause loss of lives, damage to properties and to critical infrastructure. Moreover, indirect effects can cause destruction of arable land and, in case of landslide damming of rivers, subsequent floods that can have an impact a long way downstream of the landslide site. A large-scale ...

Mountainous landscapes reflect the competition between denudation, uplift, and climate, which produce, modify, and destroy relief and topography. Bedrock rivers are dynamic topographic features and a critical link between these processes, as they record and convey changes in tectonics, climate, and sea level across the landscape. River incision models, such as the stream power model, are often used to quantify the relationship between ...