Abstract: Abstract The public cultural service system is closely linked to the enhancement of competitiveness in the cultural industry and the realization of citizens’ basic cultural rights. This article employs municipal-level data ...

Abstract: AbstractAs public concern for environmental protection grows, firms’ attention on pollution governance is increasing, making green investment the optimal avenue for businesses to address this issue. By matching the data ...

Abstract: The high-speed rotation of impellers leads to strong rotor–stator interaction, which mainly causes the pressure pulsation of centrifugal pumps. An impeller with a bionic sinusoidal tubercle trailing edge (STTE) can reduce ...