A need to obtain higher resistance to chemical attack by molten glass was recognized: clays of a high alumina-to-silica ratio, with minimal impurities, were recommended for areas of glass contact as well as the furnace crown.
The analysis of the stratigraphic sections enabled us to recognize clay minerals mixed with gypsum as ground layer, possibly held together by a proteinaceous material, e.g. animal glue which is an unusual mixture for Italian artistic traditions.
As a concession, Patterson, the shining symbol of America, gave in and recognized Cassius Clay as Muhammad Ali.
The catalytic activity of the solids evaluated in the decane hydroconversion, was superior to that of recognized pillared clays and comparable to those of very active catalysts such as zeolites USY.
But Sgt. Alan Burt said the sculptures cost less than some tests and were often more valuable; a family member or friend in Mexico is much more likely to recognize a clay model than a description or a sketch.
Many authors used them to recognize different clay minerals types [18, 20, 42, 43].
On the basis of minimum average percent relative error, the natural gamma ray and thorium curves were powerful tools to recognize the clay zones in a sandstone reservoir rather than potassium curve.
Clay recognized that White American society often repressed him, and he sought a way to rise up.
The calcination temperature is about 750 °C for 5 h (Aquino et al. 2001; Guneyisi et al. 2008; Safi et al. 2011, 2012), Generally, an optimum for kaolin clay calcinations recognized in literature is between 600 and 900 °C (Ambroise et al. 1986; Sayanam et al. 1989).
In archeology, clay utilization became recognized as a means of identifying early human progress and development.
