For concrete strength detection in structures different testing procedures are being used. For nondestructive testing of concrete strength built in the construction the most used impact hammers in technical practice are those of Schmidt system. The hammer rebound value on concrete is influenced by number of factors, these includes the treatment of the test area. In the article there are present...

Abstract: Hydrogen production via Sorption-Enhanced Chemical-Looping reforming combines hydrocarbons reforming (in this case methane reforming), by chemical-looping auto-thermal reforming, with water-gas shift and carbonation reactions. Both H2 production rate and concentration depend on the chemical equilibrium that is established in the fuel reactor and that is influenced by several parameter...