Marfan syndrome is a heritable disorder of connective tissue that can affect the heart, blood vessels, lungs, eyes, bones and ligaments. It is characterized by tall stature, elongated extremities, scoliosis and a protruded or caved-in breastbone. Patients typically have a long, narrow face. A high-arched palate produced by a narrow maxilla and skeletal Class II malocclusion due to mandibular re...

The ordovician limestone water inrush accident occurred during the excavation of 8228 working face in Tashan Coal Mine, Tongmei Group. On basis comprehensive geophysical exploration above and below well, order to find out development boundary flowing subsided column distribution characteristics broken body filled it, control by Grouting, boundary, influence zone, cementation fractured are found...

Underground mining safety risk increases with the more complicated geological conditions in deep strata, so coal mines turn to upper limit of shallow seams under Cenozoic strata. Nevertheless, Northern China coalfield are mainly covered by thicker loose sandy layers abundant water. The analysis overburdened strata deformation properties is essential for safe, efficient, and environmentally frie...