Purpose: In the 69 years since the founding of the People’s Republic of China, especially the 40 years since the reform and opening-up, the relationship between urban and rural areas has undergone profound change. When the deepening reform of the urban-rural relationship is entering a...

The effects of the site symmetric distortion induced by the phase transition on up-conversion emission and thermal sensing performance of Gd 2 (MoO 4 ) 3 :Yb 3+ /Er 3+ (GMO) crystals are elaborately studied by minimizing interference from many factors. Monoclinic GMO shows much stronger...