Cell-DEVS formalism extends cellular automata modeling. In this paper, we present a simple model for landslides using a model of a sand pile. The model uses Cell-DEVS formalism and CD++ tool to model and simulate landslides. Using this simple model, we present how Cell-DEVS formalism can be used to model systems that involve material accumulation and flow. Material flow and accumulation need sp...

This paper presents the horizontal bearing characteristics of piles in coral sand and silica from comparative experimental studies. Six model with different diameters were tested. The capacity, deformation characteristic, bending moment, p–y curve, change soil pressure, as well particle breakage behaviour investigated. results show that, foundation, capacities increments pressures are obviously...

We study the evolution of a one-dimensional pile, empty at rst, which receives a grain in its rst stack at each iteration. The nal position of grains is singular: grains are sorted according to their parity. They are sorted on trapezoidal areas alternating on both sides of a diagonal line of slope p 2. This is explained and proved by means of a local study. Each generated pile, encoded in heigh...

Y-shaped piles are a new type of pile whose cross-section is like the letter Y: they often used in ground improvement for road or train subgrades eastern coastal region China. To investigate bearing behaviour saturated sand, series model tests under compressive and horizontal load piles, C 1 </msub...

Sand flies belonging to the genus Sergentomyia Franca & Parrot, 1920, are hematophagous insects feeding mostly on reptiles and birds, but some species feed also on mammals including humans. Sergentomyia spp. frequently comprise the vast majority of sand flies trapped along with Phlebotomus spp., the vectors of mammalian leishmaniasis. Within the framework of a project on the ecology and transmi...

The effects and vertical bearing capacity of two jacked piles in sand are still not well understood, the mechanism adjacent pile’s uplift caused by jacking pile a double system is especially unclear, but these facets important to stability pile. In this paper, series tests performed on model sand, where influences length driving speed were studied. results revealed that mainly relation influenc...

A brief historical perspective is first given concerning financial crashes, from the 17th till the 20th century. In modern times, it seems that log periodic oscillations are found before crashes in several financial indices. The same is found in sand pile avalanches on Sierpinski gaskets. A discussion pertains to the after shock period with illustrations from the DAX index. The factual financia...