Photocatalytic uranium extraction in seawater provides a promising strategy for the sustainable utilization of nuclear energy. Herein, we in-situ constructed Cu2O/CuO interface by a wet-etching method, achieving an ultrafast reaction kinetics and photocatalytic activity for seawater U(VI)...

We propose a reinforcement learning (RL) approach to solve the continuous-time mean-variance portfolio selection problem in a regime-switching market, where the market regime is unobservable. To encourage exploration for learning, we formulate an exploratory stochastic control problem with an...

China's carbon dioxide (CO2) emissions have an important impact on global climate change. However, a systematical analysis, especially from the reform and opening up, is still insufficient. Thus, the emissions' decomposition since 1980 was completed by an extended logarithmic mean Divisia index...

We propose a reinforcement learning (RL) approach to solve the continuous-time mean-variance portfolio selection problem in a regime-switching market, where the market regime is unobservable. To encourage exploration for learning, we formulate an exploratory stochastic control problem with an...

When retailers make product assortment changes by eliminating certain stockkeeping units (SKUs), how does this affect sales of individual brands? This is the main question the authors address in this article. Using data from an online retailer that implemented a permanent systemwide SKU...

Deceptive counterfeits differ from non-deceptive ones in that they are packaged and sold as authentic brand name products so that consumers may buy counterfeits unknowingly. When a distribution channel, referred to as the general channel, has been penetrated with deceptive counterfeits, a brand...

Counterfeiting is a widely spread phenomenon and has seen rapid growth in recent years. In this paper, we adopt the standard vertical differentiation model and allow consumers the choices of purchasing an authentic product, purchasing a counterfeit, or not buying. We focus on how non-deceptive...