Using the hydrodynamic software Fluidyn, a numerical model comprising a top-sealed vertical inspection well and a horizontal well with openings at both ends was built based on symmetry, to study the explosion propagation of flammable gases in typical municipal sewage pipelines.The vertical well had a diameter of 0.7 m and different depths (2 m, 4 m
Overpressure is an important phenomenon observed in sedimentary basins.To enhance the precision of identifying the origin of overpressure and predicting it accurately, this paper presents four practical methods for analyzing formation overpressure, taking into account various factors, such as burial history, rock properties, mechanical models and d
Life has evolved on Earth for about 4 billion years in the presence of the natural background of ionizing radiation.It is extremely likely that it contributed, and still contributes, click here to shaping present form of life.Today the natural background radiation is extremely small (few mSv/y), however it may be significant enough for living organ