A new high efficiency welding method, double-sided double arc welding with double powers (DSAW-D), is developed for thick plate of low alloy high strength steel
The tectonic movement taking place at the end of Cretaceous and the beginning of Cenozoic had opened the Ce-nozoic phase of polycyclic tectonic movements, then
Lime application is a conventional technology to control acidification in tea orchard soils.We investigated the effect of lime application on soil microbial com
The vitrification characteristics of municipal solid waste incinerator (MSWI) fly ash were investigated. Effects of temperature on the binding efficiency of hea
The aggregation and dispersion behaviors of carbon nanotubes(CNTs)can regulate the environmental spread and fate of CNTs,as well as the organic pollutants adsor
As a typical NP-HARD problem,trajectory optimization has become the hot point in aerospace research.Considering the limitation of classical optimization algorit
A risk assessment system named meteoroid & orbital debris risk assessment system (MODRAS) developed for assessing risks of the spacecraft under the meteoroid an