In the last century, Portugal was affected by several natural disasters of hydro-geomorphologic origin that often caused high levels of destruction. However, data on past events related to floods and landslides were scattered. The <Emphasis Type="SmallCaps">Disaster project aims to bridge the gap on the availability of a...</emphasis>

We study the nature of one-electron eigen-states in a one-dimensional diluted Anderson model where every Anderson impurity is diluted by a periodic function f(l). Using renormalization group and transfer matrix techniques, we provide accurate estimates of the extended states which appear in this...

Senegal is one of the less developed countries in the world (position 158 in a list of 174 countries). 85% of its rural population does not have access to electricity and there's no doubt that this is an important barrier for socio-economic development. In this context, the project Microgrids...

Africa is the poorest continent in the world and this poverty is linked to the lack of access to energy of its population. A big part of inhabitants live in rural zones where the lack of energy and in particular of electricity is still more flagrant. The aim of the Micro-grids project was to...

Results are presented from the modeling of a small-scale distributed power system containing power demands, photovoltaic arrays, small-scale wind turbines and an electric grid connection. Detailed models of the photovoltaic array and the wind turbine are briefly explained in addition to the...

In this work, we studied the role played by the inactive sites present on the substrate of a growing surface. In our model, one particle sticks at the surface if the site where it falls is an active site. However, we allow the deposited particle to diffuse along the surface in accordance with...

We introduce a very simple model for the instantaneous electrodeposition process that takes into account the kinetic roughening during the film growth. The main ingredients of the model are the characteristic time for the cation particles to attain their steady-state velocity and the choice of a...

How did small exporters fare relative to large exporters during the 2008-09 crisis? Examining the performance of Mexican exporters reveals that crisis did not make smaller exporters more likely to exit, growless, or expand their product line less. Workhorse models of trade, in response to an...

This paper exploits the discrete change in air pollutants induced by the installation of small-scale power plants throughout Mexico to measure the causal relationship between air pollution and infant mortality, and if this relationship varies by municipaly´s socio-economic conditions. The...