The monotonous increase character of the blue curve in Fig. 2c suggests that, during growth, the Quartz crystal gradually rotates over the same axis, with a small rotation angle between neighboring points, but a much larger accumulated rotation angle for a longer distance. The above mentioned ...
The temperature curve of glass leaching intensity is described by the Arrhenius formula. An increase in temperature from 25 to 90 degrees C bring about an increase in the leaching rate of all elements from glass matrices both before and after irradiation by 0.5-1.5 orders of magnitude. For ...
During the second cooling, an inflection in the temperature curve may occur. Such an inflection could be ascribed to the detachment of the polymer from the heating device that, on its turn, determines a reduction of the heat transfer and a decrease of the cooling rate. The faster the cooling...
Using the concepts of the relative drying rate (f) and the characteristic moisture content (Φ), a characteristic drying curve was determined for the ore. The drying kinetics, when the sample had attained the equilibrium temperature, exhibited non-Arrhenian behavior and the drying process was ...
The results showed the ability of gypsum to improve overall infiltration, mostly by reducing the rate of infiltration decay in the non-steady portion of a Horton-type infiltration curve; such rate of infiltration decay was shown to be not constant in subsequent rainstorms, with a well defined ...
Most of these measurement points are distributed on or near the U-Pb age concordant curve (Figure 7), showing good concordance. Data of zircon grains from porphyritic granite sample D35 yielded 2 groups of concordant ages at 142.02 ± 1.2 Ma (MSWD = 1.5), and 373.0 ± 3.5 Ma (MSWD =...
The TGA curve shapes are gentle, and they do not show sharp peaks. This is evidence of a low-crystallinity material and an extremely variable composition at the micron scale so that the dehydroxylation reactions occur in a temperature range rather than at one defined T°. The only other ...