Maize-soybean strip intercropping has the advantages of alleviating the contradiction of arable land in China, improving the utilization rate of resources, high yield and sustainability. The key to exert these advantages is to stabilize the maize yield. However, interspecific interactions...

Sulfonamides (SAs) have been of ecotoxicological concern for ambient ecosystems due to their widespread application in the veterinary industry. Herein, we developed a powerful advanced oxidation peracetic acid (PAA) activation process for the remediation of SAs with a Co3O4 hollow double-layered...

The inherent limitations of semiconductors include low carrier concentrations and the non-directional utilization of internal carriers, which exhibit sluggish photocatalyst-mediated redox activities. Here, a novel high-performance Na-bridged photocatalyst with nitrogen vacancies (WNCN) was...

Background: Copper is an essential micronutrient and plasma copper plays an important role in the development of myocardial infarction and cardiovascular disease (CVD)-specific mortality. However, nationwide data on the plasma copper concentrations and determinants in Chinese adults with...

This paper studies the optimal control problems of continuous-benefit tontine funds and multi-cohort tontine models. Firstly, we take a limit on the number of members in the tontine pool and obtain a continuous form of benefits by Borel's law of large numbers. This continuous framework provides...

Doping the carbon-free fuel NH 3 into pulverized coal furnaces is a feasible approach for reducing CO 2 emissions during thermal power generation, but the NH 3 co-combustion increases NO x emissions. Therefore, it is necessary to study the formation mechanism of NO during the NH 3 -pulverized...

Both exogenous and endogenous growth theories in neoclassical economics ignore the resource constraints and wavelike patterns in technology development. The logistic growth and species competition model in population dynamics provides an evolutionary framework of economic growth driven by...

Following the framework of Promislow and Young (2005), this paper considers an optimal investment–reinsurance problem of an insurer facing a claim process modeled by a Brownian motion with drift under the Markowitz mean–variance criterion. The market modes are divided into a finite number of...