The aim of this paper is to determine the stability of a circular tunnel driven by a pressurized shield.The analysis is performed in the framework of the virtual block theory.The failure mechanisms ar...

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Due to the similarity in composition and crystal structure of some TiAlSi ternary intermetallics,it is quite difficult to accurately confirm their physic characteristics,and thus,to tailor microstructure to improve mechanical properties of metal materials...

　　Background:It is environmental to use botanical insecticides to control red imported fire (RIFA), Solenopsisinvicta.TheDerris trifoliateroots powder were ev...

In this paper, tricobalt tetraoxide (Co3O4) film built with utra-small particles were deposited on the polydimethyl-siloxane (PDMS) surface by the plasma-enhanced metal-organic chemical vapor depositi...

　　The low insecticidal activity of rotenone against Spodoptera litura has been studied while its mechanism was not.To demonstrate the biochemical mechanism of...

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