This paper tries to uncover the shock of digital finance on green innovation by employing data for 30 provinces, municipalities or catherine lansfield ombre rainbow clouds eyelet curtains autonomous regions in China via estimation of fixed effect model and further divides the whole sample into three regions to see whether this impact is constant am
We investigate the nature of the magnetic excitations of a bilayer single-orbital Hubbard model in the intermediate-coupling regime.This model exhibits a quantum phase transition (QPT) between a paramagnetic (PM) and an insulating antiferromagnetic (AFM) phase at a critical value of the coupling strength.By using the random phase approximation, we
Positioning systems are now widely used in various fields of human activity.They allow with a certain accuracy to determine the position of an object in space.There are global positioning systems that use satellite signals for this purpose.Their disadvantages are relatively low accuracy and difficulties in premises.Local positioning systems have hi
To investigate the gas agitation characteristics of side blowing, the fluid flow and mixing phenomenon in a 1:3 scale model ladle of a 150 t industrial gas-stirred ladle with bottom and side plugs were studied by using physical and numerical modelings together.Side blowing enhanced the horizontal flow of water in the model ladle.Compared with botto