At present, oxygen reduction reaction (ORR) catalyst has become an important obstacle to the commercial development of fuel cells (FCs), and it is extremely important to explore efficient and stable ORR catalysts. Composite catalysts formed by WS 2 attachment to two carbon substrates were...

The use of economic valuation methods to assess environmental impacts of projects and policies has grown considerably in recent years. However, environmental valuation appears to have developed independently of regulations and practice of environmental impact assessment (EIA), despite its...

Outsourcing is very important for organizations to achieve better performance, such as cost reduction, core activities, and knowledge acquisition. Thailand is as known worldwide as a key outsourcing service provider. To know factors affecting to long-term relationship outsourcing are essential...

We apply the directed acyclic graph and spillover index models and find significant evidence of both implied volatility contagion and spillover. First, the global implied volatility smiles exhibit strong regional clustering. The European and American options markets form a separate contemporary...

The application of cadmium sulfide is severely limited by photo-corrosion and electron-hole recombination. In this work, hierarchically structured Zr-based UiO-67 assembled from ultrathin nanosheets was rapidly synthesized by microwave and treated as support to disperse CdS NPs. Owing to the...

The use of economic valuation methods to assess environmental impacts of projects and policies has grown considerably in recent years. However, environmental valuation appears to have developed independently of regulations and practice of environmental impact assessment (EIA), despite its...

The use of economic valuation methods to assess environmental impacts of projects and policies has grown considerably in recent years. However, environmental valuation appears to have developed independently of regulations and practice of environmental impact assessment (EIA), despite its...

The COVID-19 outbreak is a global pandemic declared by the World Health Organization, with rapidly increasing cases in most countries. A wide range of research is urgently needed for understanding the COVID-19 pandemic, such as transmissibility, geographic spreading, risk factors for infections,...

Background: Human mobility among geographic units is a possible cause of the widespread transmission of COVID-19 across regions. Due to the pressure of epidemic control and economic recovery, the states of the United States have adopted different policies for mobility limitations. Assessing the...