In order to improve the phosphate adsorption capacity of Ca-loaded biochar under acidic conditions, Ca was loaded as Ca(OH) 2 on the biochar pyrolyzed at 500°C by high-temperature calcination-ultrasonic treatment-stirring impregnation method using tobacco straw and oyster shell as the raw...

The rate at which sediment from the landscape is recruited to channel networks reflects lateral geomorphic connectivity and has significant implications for the hydrological processes of the catchment. The main objective of this research was to quantify the lateral sediment connectivity of...

A new multivariate semi-parametric risk forecasting framework is proposed, to enable the portfolio Value-at-Risk (VaR) and Expected Shortfall (ES) optimization and forecasting. The proposed framework accounts for the dependence structure among asset returns, without assuming their distribution....

Purpose: The aim of this paper is to provide methods to find the emission source and estimate the amount of waste gas emissions in the electricity coal supply chain, establish the model of the environmental impact (burden) in the electricity coal supply chain, detect the critical factor which...

E-commerce and FinTech are currently booming in China. The growing consumer market is accompanied by internet finance, by which consumers can easily borrow money from financial institutions online. As a result, the growing risks of financial institutions are of concern to the government and...

This paper presents the analysis and design optimization of a coaxial surface-mounted permanent-magnet magnetic gear. The magnetic field distribution in the coaxial magnetic gear is calculated analytically in the polar coordinate system and then validated by the finite element method (FEM). The...

While land serves numerous societal functions and contributes to sustainable development, it is often unclear how these functions are affected by political decisions and common drivers of land use change, such as economic development, climate change and demographic change. This study evaluates...

This study estimates the effects of a mandatory, universal prescription drug insurance program in a public health care system with free physician and hospital services. In 1997 all residents of the province of Quebec, Canada, were required by law to have drug insurance coverage. Under this...

Maintaining long-term customer relationships and increasing customer value are always the two crucial objectives in service management and relationship marketing. Both researchers and market practitioners are ardent on exploring and comprehending the drivers of customer lifetime duration and...

A burgeoning population, pressing development needs and increasing household consumption are rapidly accelerating water use in direct and indirect ways. Increasingly, regions around the world face growing pressure on sustainable use of their water resources especially in arid and semi-arid...