In previous work [1], we investigated the design of a two frequency synthetic aperture radar interferometer for estimating the sand layer thickness and the bedrock topography in deserts and arid areas. This was shown to be very useful in many applications such as oil field explorations, environmental studies and archaeological surveys. In order to test the inversion algorithm for different comp...

The use of non-slip surfaces during loading and unloading of finishing pigs plays an important role in animal welfare and economics of the pork industry. Currently, the guidelines available only suggest the use of ramps with a slope below 20 degrees to load and unload pigs. However, the total time it takes to load and unload animals and slips, falls, and vocalizations are a welfare concern. Thr...

Cutaneous leishmaniasis (CL) is caused by a protozoan of the genus Leishmania and is transmitted by sand flies. The state of Espírito Santo (ES), an endemic area in southeast Brazil, has shown a considerably high prevalence in recent decades. Environmental niche modelling (ENM) is a useful tool for predicting potential disease risk. In this study, ENM was applied to sand fly species and CL case...

Based on the synergetic approach, the theory of a single avalanche formation is presented for the simplest sandpile model. The stationary values of sand velocity, slope and avalanche intensity are derived as functions of control parameter (externally driven sandpile tilt). The statistical ensemble of avalanche intensities is considered to investigate diffusion in ultrametric space of hierarchic...

Using a modified Bak-Tang-Wiesenfeld model for sand piles, we simulate a Casimir-like effect in a granular pile with avalanches. Results obtained in the simulation are in good agreement with results previously acquired experimentally: two parallel walls are attracted to each other at small separation distances, with a force decreasing with increasing distance. In the simulation only, at medium ...

Certain characteristics defining fluvial geomorphology have been linked with a wide range of ecological events that generate effects on the vital components river systems. The Binahaan River in Leyte, Philippines, is important for irrigation and potable water distribution but little research has conducted about it. Our objective was to baseline data by developing model showing geomorphic typolo...

Footing foundations are sometimes built on sloping grounds of natural sand which is highly anisotropic. The anisotropic mechanical behaviour can significantly influence the bearing capacity a foundation and failure mechanism its supporting slope. Neglecting anisotropy may lead to overestimated under-design foundations. A numerical investigation response slope under strip footing presented, plac...