With policy encouragement and capital investments, China's wind power has been enjoying a tremendous development for years. China has now become a global leader in terms of wind power capacity, with a total of 52.58 gigawatts of wind power connected to power grid. However, the overwhelming...

With the integration of increased variable renewable energy generation and advent of liberalized electricity market, much attention has been devoted on the development of pumped hydro energy storage (PHES) as it has many prominent advantages of ensuring the safe and steady operation of power...

We consider the dynamic portfolio choice problem in a jump-diffusion model, where an investor may face constraints on her portfolio weights: for instance, no-short-selling constraints. It is a daunting task to use standard numerical methods to solve a constrained portfolio choice problem,...

The process of urban-rural integration has led to severe ecological environmental pollution in rural areas of China, particularly in the economically-developed areas. This is an urgent issue to be solved. We select Jiangsu Province as a case study. From the perspective of the population,...

A numerical study on the performance of an adjustable ejector was presented. An axial spindle extending into the nozzle was used to change the throat area of the nozzle to make the ejector adjustable. The re-normalization group (RNG) k-epsilon model reconciled better with experimental...

We report that, in the estimation of univariate GARCH or multivariate generalized orthogonal GARCH (GO-GARCH) models, maximizing the likelihood is equivalent to making the standardized residuals as independent as possible. Based on this, we propose three factor GARCH models in the framework of...