The middle-to-low temperature sites of Xiongxian (North China Plain) and Xianyang (Guanzhong basin) consist of limestone and sandstone formations, respectively.
The maximum conversion of propylene occurred at 300 °C, corresponding to the activation of propylene over low temperature acid sites of zeolite.
This is suggested by the limited reduction of chalimus in low temperatures at sites B and C, despite the significant reduction in PAAM.
The interface between a metal and a partially reducible oxide promotes surface reduction of the oxide to the low temperature range, generating sites for the low temperature activation of H2O on the oxide.
As with germination, the low mean height from the El Melado site seems to be related to the high precipitation and low temperature of this site.
As with germination capacity and height, the lower survival observed in the pre-Andean provenance site El Melado could be related to the high precipitation and low temperature of this site.
From the NH3-TPD experiments (Fig. 9), it could be concluded that two types of acid sites were present in H-ZSM-5: Weak acid sites corresponding with desorption at low temperature and strong acid sites corresponding with desorption at high temperature (see Table 4).
At low temperature (<1536 K), "site-blocking" is due to the larger size of Y ions, but at a high temperature (>1536 K), "site-blocking" is related to possible formation of nucleates surrounding the Y ions.
When CO was less strongly bound to the surface, the Pt16Au16 catalytic behavior was best described by bimetallic nanoparticles in which Au sites were active at low temperatures and Pt sites took over at higher temperatures.
These combined data suggest that Δgpαf can be trapped at an intermediate stage of retrotranslocation by varying the temperature: Δgpαf appears to be targeted to a derlin-1-containing retrotranslocation site at low temperature to form a membrane-bound intermediate and only passes through the site when the temperature is raised.
Due to more number of active sites at low temperature, it is highly active for selective oxidation of benzyl alcohol to benzaldehyde (Fig. 11).
