The objective of this thesis is to optimise the fragmentation at Boliden Minerals open pit mine Aitik. Blasting is one of the main operations in mining, and its performance has a major impact on the overall economy of the mine. The fragmentation process affects not only the local productivity and unit costs of the mining department. It also affects the performance of the subsequent comminution ...

This paper outlines how our highly efficient, power-aware supercomputer called Green Destiny and our open-source parallelization of BLAST called mpiBLAST combine to create a bit of “bioinfomagic.” Green Destiny, featured in The New York Times and winner of a 2003 R&D 100 Award, revolutionized high-performance computing by re-defining performance to focus on issues of efficiency, reliability, an...

Results: The rate of concussion, defined by the Defense and Veterans Brain Injury Center Working Group on the Acute Management of Mild Traumatic Brain Injury in Military Operational Settings, was 95%. The rate of PTSD, as determined either with the PTSD Checklist or by confirming a prior diagnosis by another healthcare provider, was 97.9%. Both rates are remarkably higher than rates reported in...

Since its invention until the 1950s, the iron blast furnace was viewed as a strange ‘black box’. Its operation was largely empirical and much of the information needed for monitoring and control of the process was yet to be known. More complete information was needed concerning the process such as the reduction of iron-bearing raw materials, the distribution of materials throughout the stack, t...

The purpose of this paper is to investigate the potential for use of UAVs in underground mines and present a prototype design for a novel autorotating UAV platform for underground 3D data collection. The mining industry has recently shown increased interest in the use of unmanned aerial vehicles (UAVs) to assist in everyday operations [20, 11, 4]. Above ground, small UAVs are in some cases a mo...

air cooled blast furnace slag is a by product made of gradually air cooled molten blast furnace slag, and is often stored in stockpiles near the iron mills and usually occupy a wide area around the iron mills. from this perspective the further use of these materials can have its own merits. air cooled blast furnace slag can be used in asphalt mixtures because of their proper frictional properti...

The article provides an analysis of Russian and Australian national documentation on occupational safety industrial for toxic post-blast gases. main purpose the is to present results research need a recognized document that would be appropriate all countries conducting open cut blasting. was performed with two spheres mine in mind, such as health establish standards environmental exposure harmf...