Over the past decade, there has been an explosion of interest in network research across the physical and social sciences. For social scientists, the theory of networks has been a gold mine, yielding explanations for social phenomena in a wide variety of disciplines from psychology to economics. Here, we review the kinds of things that social scientists have tried to explain using social networ...

This work quantifies seismic coupling as a function of charge weight for single-fired (simultaneously detonated) explosions observed in the mine and at regional distances. These single-fired explosions are contrasted to standard production shots from the same mine. Production shots include cast blasts to remove overburden and coal shots to fracture the resource. The blasts were conducted in a m...

Since World War II, more vehicles have been lost to land mines than all other threats combined. Anti-vehicular (AV) mines are capable of disabling a heavy vehicle, or completely destroying a lighter vehicle. The most common form of AV mine is the blast mine, which uses a large amount of explosive to directly damage the target. In a conventional military setting, landmines are used as a defensiv...

A new energy material, a high-energy expansion agent (HEEA), was proposed for the harsh engineering environment of mine. safety test and field were carried out. The results showed that mechanical sensitivity HEEA extremely low, no combustion explosion occurred in multiple impact friction tests. Meanwhile, only burns open spaces without detonation. Through experiments, can achieve good blasting ...

The article is devoted to the generalization of approaches conducting forensic mining examinations in investigation explosions gas-dust mixtures coal mines. practical significance obtained results use special knowledge and other types (trasological, petrochemical, firetechnical, etc.) mines, which will ensure rapid, complete, safe investigation. A characteristic feature explosion studies that c...

From 2001 to 2007, the Pittsburgh Research Laboratory (PRL) of the National Institute for Occupational Safety and Health (NIOSH) conducted studies to develop alternative methodologies to full-scale explosion testing for deter­ mining the ultimate strength of mine seals. As a result, the PRL developed and proposes an alternative seal-strength evaluation method based on a hydrostatic pressure-loa...

Abstract Electric explosion-proof trackless rubber-wheeled vehicles in coal mines usually use braking energy recovery technology to improve cruising range. In order the efficiency of vehicle and safety performance, this paper proposes a control strategy for electric based on road condition recognition. This is mine underground positioning technology, adopts different strategies conditions, whil...