– We analyze the magnetic-flux profile in the critical state of an YBa2Cu3O7−x thin film. It is found that the profile forms a self-affine structure in both space and time. Furthermore, the surface of a pile of rice is studied, which also shows a self-affine structure. These experimental results are compared to simulations of a two-dimensional version of the Oslo model for sandpiles. The expone...

This research investigates the influence of pile spacing on dynamic behavior groups by performing a series specifically designed centrifuge experiments foundations embedded in two-layered soil profile. A single and two 3×1 row with different were used as model foundations, models consisted soft clay underlain dense sand. The earthquake frequency soils is discussed using data 1D site response an...

In order to guarantee perpendicularity of rotary cast-in-place pile in Karst areas, filling, like sand, etc., is commonly used between the inner steel casing and outer sleeve; while sleeve pulled out or a vertical load applied on top pile, sand will move, contact, push against each other, which leads recrushing; therefore, shear characteristics secondary breakage are meaningful problem study wi...

Abstract This paper investigates the response of finned piles in sand subjected to static lateral load through laboratory tests and full-scale field tests. Firstly, model were carried out on free headed single different shaft diameters with without fins explore performance under loading. The results obtained from monotonic loading three series combination pile presented. effect improving stiffn...

This paper presents the object oriented design and implementation of GEAMAS V2.0, a toolkit for virtual simulations of complex systems. GEAMAS V2.0 is structured in three modules: the Kernel, the Generation Environment and the Simulation Environment. The Kernel implements an object model for agents and provides generic classes. The Generation Environment allows the graphical design of applicati...

We study a simple model of spin network evolution motivated by the hypothesis that the emergence of classical space-time from a discrete microscopic dynamics may be a self-organized critical process. Self organized critical systems are statistical systems that naturally evolve without fine tuning to critical states in which correlation functions are scale invariant. We study several rules for e...

We analyze electromagnetic field propagation through a random medium that consists of hyperbolic metamaterial domains separated by regions of normal "elliptic" space. This situation may occur in a problem as common as 9 μm light propagation through a pile of sand, or as exotic as electromagnetic field behavior in the early universe immediately after the electroweak phase transition. We demonstr...

We show that deterministic systems with strong nonlinearities seem to be more appropriate to model sandpiles than stochastic systems or deterministic systems in which discontinuities are the only nonlinearity. In particular, we are able to reproduce the breakdown of Self-Organized Criticality found in two well known experiments, that is, a centrally fueled pile [Held et al. Phys. Rev. Lett. 65 ...