Narrow Results

Potassium niobate KNbO₃ and some compounds of (K_1-xNa_x)NbO₃ (x = 0.3, 0.4, 0.6, 0.7) ceramics powders were successfully prepared by the solid-state reaction method using a non-stoichiometric mixture of starting materials. A possible formation of these phases was proposed based on the experimental results. All of the prepared compounds were characterized using the X-ray diffraction method, and grain size has been calculated using SEM images, and their stoichiometry was obtained from the EDAX results.

This paper discusses the Long-Term Evolution (LTE) network architecture and key technologies, discontinuous reception (DRX) mechanisms of different systems and a comparison of the effects of using each DRX mechanism. Research is carried out on DRX mechanisms based on three kinds of optimization algorithms: semi-Markov control model, online learning adaptive DRX mechanisms, and adaptive control sleep cycle of DRX mechanisms. Finally, DRX mechanism of the adaptive control sleep cycle is simulated, and the advantages and disadvantages of the algorithm are analyzed. The results of this paper have good reference value for research into the LTE system.