Three polymorphs of a di-chloro-N-salicylideneaniline derivative show visually impressive jumping and sudden blasting behaviours on heating due to phase transitions.

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...

Supercritical CO2 phase change fracturing technology has been widely used in rock engineering. However, the surface vibration characteristics induced by breaking have not sufficiently studied. In this paper, a model for calculating velocity supercritical was established based on time-domain recursive method, and reliability of verified using LS-DYNA nonlinear finite element software; blasting e...

Nitrogen oxides and carbon monoxide gases together with dust are known as the major pollutants arising during the blasting operations using the ammonium nitrate-fuel oil (ANFO) explosive at the Sungun surface mine, located in the northwest of Iran. The pollutants were monitored during some blasting operations at the mine. It was concluded that the gases and dust clouds initially went up to the ...

The use of blasting cost (BC) prediction to achieve optimal fragmentation is necessary in order to control the adverse consequences of blasting such as fly rock, ground vibration, and air blast in open-pit mines. In this research work, BC is predicted through collecting 146 blasting data from six limestone mines in Iran using the artificial neural networks (ANNs), gene expression programming (G...

Blasting is common in the coal industry to remove rock overburden so that the exposed coal can be mechanically excavated. The ground vibrations and air blast produced by blasting are often felt by residents surrounding the mines. There has been a trend for regulatory authorities, especially those concerned with the environment, to impose low limits on blast vibration levels in response to commu...

Abstract Blasting is widely employed as an accepted mechanism for rock breakage in mining and civil activities. As environmental side effect of blasting, flyrock should be investigated precisely open-pit operations. This paper proposes a novel integration artificial neural network fuzzy cognitive map (FCM) with Z -number reliability information to predict distance mine blasting. The developed m...

Sequence-alignments in general and BLAST searches in particular have become a ubiquitous part of molecular biology. Despite its popularity, the vast array of BLAST tools and parameter choices can overwhelm the user. Yet accepting the default parameters can greatly reduce search sensitivity and accuracy. This review focuses on the major parameters for BLASTN and BLASTP searches, and discusses bo...

The conventional practice in open cut coal strip mining has been to blast the overburden or coal layers in separate blast events. This is done in order to maximise the benefits from throw blasting and also to limit coal losses. Each blast event usually has a particular design of hole diameters, burdens and spacings, explosive charges and blast timing in order to achieve the required blast outco...