Circulating fluidized bed systems represent a technology widespread in developed countries, which can improve the utilization of energetic resources in thermochemical conversion processes, such as combustion, gasification ...

Cell cycle alterations are among the principle hallmarks of cancer. Consequently, the study of cell cycle regulators has emerged as an important topic in cancer research, particularly in relation to environmental exposure. ...

Trace element contents (Cu, Zn, Co, Ni, Ct V, Ge, B, As), vitrinite reflectance values and content of mineral matter (low temperature ash (LTA) samples characterised by XRD) have been determined in Eocene-Miocene coals ...

The scarcity of water in the Agreste region of Pernambuco is a matter of concern for the communities and industries installed in this location. One of the activities developed in this area involves the central processing ...

En la cuenca Cordillera Oriental de Colombia, zonas carboníferas de Boyacá y Cundinamarca, se explotan por minería subterránea más del 90 % de los carbones coquizables de rango medio del país, bituminosos altos a bajos ...

Among the main materials of civil construction or prominence, mainly for the manufacture of precast. In the United States and Europe there are more than five hundred applications for accessories, while in Brazil these ...