There has always been a complex relationship between uncertainty and crude oil prices.Three types of uncertainty, i.e., economic policy uncertainty, geopolitical risk uncertainty, and climate policy uncertainty (EPU, GPR, and CPU for short), have exacerbated abnormal fluctuations in the energy market, making crude oil prices volatile more and more
This paper presents a new filtering approach for Synthetic Aperture Radar (SAR) interferometric phase noise reduction in the shearlet domain, depending on the coherent statistical characteristics.Shearlets provide a multidirectional and multiscale decomposition that have advantages over wavelet Idler Set filtering methods when dealing with noisy ph
The service failure of online shopping has always plagued online stores, but the current academic circles still need to explore the service recovery of online shopping from the perspective of empathy and consumer forgiveness.Based on the service failure cases of real online shopping, this article uses the method of situational experiment to carry o
This work analyzes the opportunities of wider characterization of textile materials, fabrics, upholstery fabrics, fibers, yarns or others, which may accumulate electric charge.A non-contact way for electrostatic properties measurement based on affecting those materials by ions with positive or negative charge is described.The method allows to measu