Through ion exchange, that is, Na+ from the framework are substituted by H+ and forms HY zeolite which has very strong acidic center and is excellent catalyst in the acid-catalyzed reaction. However, the hydrothermal stability of HY zeolite is very poor. Thus, they are usually modified ...
In addition, the computational screening of novel materials requires an efficient filter for synthesizability, which has in the past been restricted to the thermodynamic stability of the material of interest and empirical 'structural similarity' arguments3,6. We propose a general framework within ...
The propagation equations of the photon pairs generated from FWM process are derived in a spatiotemporal framework. By means of the input-output relations of the propagation equations, the biphoton amplitude function is obtained in a spatiotemporal domain. In the given frequency range, the bi...
buildings Article A New Steel-Joint Precast Concrete Frame Structure: The Design, Key Construction Techniques, and Building Energy Efficiency Xiaona Shi 1, Xian Rong 1,2, Lin Nan 1, Lida Wang 1,* and Jianxin Zhang 1,2,* 1 School of Civil and Transportation Engineering, Hebei University of...
Moreover, aspects associated with its structure, the presence of extra-framework exchange sites, their location in the clinoptilolite structure voids, the possibility of diffusion access of exchangeable cations to these sites from the outside—all of these steric factors, which play a key role in ...
Under low crack constraint cases, the EPFM one-parameter approach generally gives a stress overestimate, which results in a great cost waste of labor and sensor components. The J-A two-parameter approach overcomes this limitation. To enable the extensive application of the J-A approach on ...
This allows us to discuss each of the two sides, while maintaining that the two subsystems are not autonomous from one another. We follow others in applying common ecological terms to set up a logical framework for understanding social-ecological systems [10–13]. This paper uses accepted ...