In view of the local cracking and leakage water-wall pipe Subcritical Boiler in a thermal power plant, mechanism water wall was studied by means macroscopic analysis, chemical composition metallographic structure, Brinell hardness test, tensile test at room temperature scanning electron microscopy. The results show that there is no misuse materials or unqualified cracked leaked pipe. There are ...

While the occurrence of large amplitude internal waves in the Earth’s natural bodies of water is widely documented, the generation of these waves remains an active area of exploration. We discuss numerical simulations of transcritical flows of a density strat­ ified fluid with a dual focus on the role of a background shear current and transitions of the background current from super to subcriti...

This review attempts to provide an updated overview (including works published till June 2006) on the latest applications of compressed fluids as sample preparation techniques for food analysis. After a general review of the principles of supercritical fluid extraction (SFE) and pressurized liquid extraction (PLE; also called accelerated solvent extraction, ASE or subcritical water extraction, ...