The impact of time allocation on the economy and society has spatial characteristics, especially spatial allocation of leisure time (SALT). To explain the decision-making mechanism of SALT, we divide time from the perspective of space and construct the individual utility function to transform...

Metallic tin has been considered as one of the promising anode candidates for next-generation lithium-ion batteries. However, its poor cycling stability due to the severe volume expansion upon lithiation hinders its further application. Here we propose a shell-to-yolks evolution strategy to...

Aimed at improving the combustion and thermal performance of micro combustor to increase energy output, a novel Y-shaped fin is designed to enhance the heat transfer. Firstly, the combustion and thermal performance of conventional micro combustor (MC), micro combustor embedded with straight fin...

A facile and universal route has been developed to synthesize metal oxides-based yolk-shelled structures with controllable void size. Based on this approach, a yolk-shelled SnO 2 @N dopped C (yolk-shelled SnO 2 @NxC) composite has been successfully synthesized for lithium-ion battery electrodes....

In this paper, the characteristics of persistent toxic substances (PTSs) in soil of Ny-Ålesund in the Arctic during the 10th Chinese Arctic (Arctic Ocean) scientific investigation were quantitatively analyzed. The sources and toxicity risks of polycyclic aromatic hydrocarbons (PAHs) and heavy...

The optical performance of lanthanide-doped inorganic materials, which give promising applications in white light-emitting diode (WLED), optical information storage, X-ray scintillation, etc, greatly depends on the host matrix. Recently, double perovskite structured phosphors have aroused great...