Article history: Received 8 December 2010 Received in revised form 18 May 2011 Accepted 19 May 2011 Available online 23 June 2011

The objective of this work was to present an overview abrasive technologies with solid carbon dioxide as a blasting medium. These methods can be successfully used for the removal wide range types industrial pollution. article covers literature reports in field examined cleaning mechanisms and manufacturing process dry ice, focusing on structure size product. Having correct understanding these p...

Blasting is an essential part of any mining or civil engineering project along with all the benefits that it brings, such as cost and time effectiveness, safety. Still, there are a few downsides to blasting. Ground oscillation velocity most significant impact blasting has been studied broadly. However, not measured values should be used for PPV (peak particle velocity) predictor model developme...

Satisfiability Modulo Theories (SMT) is the problem of deciding satisfiability of a logical formula, expressed in a combination of first-order theories. We present the architecture and selected features of Boolector, which is an efficient SMT solver for the quantifier-free theories of bit-vectors and arrays. It uses term rewriting, bit-blasting to handle bit-vectors, and lemmas on demand for ar...

Solids Liquids Gases/vapours Asbestos dust Sprayed droplets Ammonia Engine exhaust particles Paints Carbon monoxide Lead dust and fume Pesticides Carbon dioxide Silica dust Power coating mix Freon’s Welding fume Liquid jetting Helium Shot blasting dust Sewage water Nitrogen Wood dust Mercury vapour Smoke Mists Solvent vapours Fungal spores Chrome acid Engine exhaust gases Bacteria Cutting fluid...

A nonlinear hyperbolic partial differential equation modelling the etching of glass by powder blasting is proposed. This equation is solved by means of the characteristic strip equations. The analytical solution is in reasonable agreement with measurements. AMS Subject Classification: 35F25, 35L60, 33C05.

This study aims to investigate the fracturing characteristics of double-hole blasting under action coupled static stress and delayed time explosion. A total thirteen explosive tests were carried out on rectangular concrete blocks with different constraints. The test wrapped in steel mesh bed prevent flying away cracked after blasting. After blasting, surface area crater was measured, all pieces...

Excessive exposures to airborne crystalline silica have been known for over 100 years to pose a serious health hazard. Work practices and regulatory standards advanced as the knowledge of the hazards of crystalline silica evolved. This article presents a comprehensive historical examination of the literature on exposure, health effects, and personal protective equipment related to silica and ab...

Erdenet copper-molybdenum deposit is the biggest one in world and has a significant impact on Mongolian society economy. Today LIEBHERR-994B hydraulic shovels from Germany, electric including EKG-10 EKG-15 Russia operate for mining works, dump truck BelAZ - 75130 used transportation. The causes of shovel downtime are classified as technical, technological, organizational. During study period, 4...