The dynamic performance of three slab ballastless Files tracks in the China Railway Track System (CRTS), which is supported by a simply supported box girder under various train loads, were comprehensively investigated with refined rigid-flexible coupled models.A refined rigid-flexible coupled model of vehicle-multi layer track-bridge system was dev
Background The objective of this study is to explore the macroeconomic Face Sunscreen factors considered by companies in scheduling initial public offerings (IPOs).Methods The panel data analysis method was employed to investigate the relationship between the frequency of IPOs and selected macroeconomic indicators within the stock markets of G-7 co
The oil pipeline network requires periodic monitoring to detect pipeline damages, which may cause oil leakage with severe environmental contamination.These damages can be generated by interference from third parties such as construction works, sabotage, vandalism, excavations, and illegal oil theft.To detect the oil pipeline damages, it can be used
In an Cases EPS lesson, the student can learn in three different ways, including learning by doing, observing, or thinking; the last method will be the subject of our study, the objective of which is to show how a debate of ideas (sociocognitive conflict), between a group of students will make it possible to construct learning through the education