Latent class models with crossed subject-specific and test(rater)-specific random effects have been proposed to estimate the diagnostic accuracy (sensitivity and specificity) of a group of binary tests or binary ratings. However, the computation of these models are hindered by their complicated...

Surface subsidence with various formation mechanisms possesses varied and complex influencing factors. Thus, studying surface subsidence mechanism and regularity under different special geological conditions is important in implementing disaster prevention and reduction programs. This paper...

Ground subsidence in underground coal mining areas causes environmental damage and creates hazards on the ground surface, which is long-term, widely distributed, and can lead to large-scale geological disasters. Achieving a high-precision method to predict mining subsidence deformation is very...

With constant growth of China’s population and increasingly serious situation of farmland protection, the grain security has become a hot issue of China. This study firstly elaborated grain security measures in grain exporters, such as the United States, Australia, and EU, and grain...

Through overview of relevant literature and on the basis of basically grasping frontier study and development trend, this paper discussed the grain security from industrial structure, farmland protection, grain import, urbanization and industrialization, grain reserve, ecological protection, and...

This paper provides a detailed overview of China's participation in international trade using newly available data on the universe of globally engaged Chinese firms over the 2003-2005 period. We document the distribution of trade flows and product- and trade-partner intensity across both...