THE EXPLOSION AT FLOOD ROCK

Discrete element modeling of explosion-induced fracture extension in jointed rock masses

The explosion process of explosives in a borehole applies a very high pressure on its surrounding rock media. This process can initiate and propagate rock fractures, and finally, may result in the rock fragmentation. Rock fragmentation is mainly caused by the propagation of inherent pre-existing fractures of the rock mass and also from the extension of the newly formed cracks within the intact ...

Topological Entropy at an ß - Explosion

In this paper an example is given of a C2 map g from the circle onto itself, which permits an ß-explosion. It is shown that topological entropy (considered as a map from C2(Sl, S1) to the nonnegative real numbers) is continuous at g.

Simulation-Verification: Biting at the State Explosion Problem

ÐSimulation and verification are the two conventional techniques for the analysis of specifications of real-time systems. While simulation is relatively inexpensive in terms of execution time, it only validates the behavior of a system for one particular computation path. On the other hand, verification provides guarantees over the entire set of computation paths of a system, but is, in general...

A GIS-based Flood Risk Assessment Tool: Supporting Flood Incident Management at the local scale

Outburst flood at 1920 BCE supports historicity of China's Great Flood and the Xia dynasty.

China's historiographical traditions tell of the successful control of a Great Flood leading to the establishment of the Xia dynasty and the beginning of civilization. However, the historicity of the flood and Xia remain controversial. Here, we reconstruct an earthquake-induced landslide dam outburst flood on the Yellow River about 1920 BCE that ranks as one of the largest freshwater floods of ...