Backfill is a very important technology that can be used to reduce the environmental footprints resulting from coal mining.The selection of proper filling materials is of great significance to the operation cost and the stability of the goaf.This paper investigated the feasibility of using the coal gangue as the main component of the filling paste
BackgroundThe neuroendocrine system is an important modulator of phenotype, directing cellular genetic responses to external cues such as temperature.Behavioural and physiological processes in poikilothermic organisms (e.g.most fishes), are particularly influenced by surrounding temperatures.Methodology/principal findingsBy comparing the developmen
The use of punishment to the convict by court order is nothing more than, as the implementation of the specific nature and size of the criminal liability established by the court in accordance with the criminal law in the science of criminal law throughout its development a lot of attention was paid to the problems of scientists punishment.Punishme