Guizhou Province is located in Southwest of China, with many mountains and hills, and is a typical karst topography and geomorphology area with frequent geological disasters such as collapses and landslides.The existing dangerous rock mass in the Xiaotunyan collapse zone in Sinan County has large range and volume, and fissures, concave cavities, an
Incorporating outstanding flame retardancy and electromagnetic interference shielding effectiveness (EMI SE) into polymers is a pressing requirement for practical utilization.In this study, we first employed the principles of microencapsulation and electrostatic interaction-driven self-assembly to encapsulate polyethyleneimine (PEI) molecules and T
The purpose of this study was to systematically review the Brazilian literature on the prevalence of obesity and associated factors in adolescents.The literature search was carried out in the electronic databases Pubmed and Bireme, using the keywords: obesity, overweight, BMI, adolescents and Brazil.The following inclusion criteria were considered:
Purpose.One of the indicators of the track and rolling stock interaction, non-observance of which can result in a traffic safety violation, namely to derailment, is a condition for ensuring stability against the wheel flange climbing onto the rail head.The aim of this work is to create a methodology for practical engineering calculation of the resi