Resale of used products may shrink the new-product market and create the cannibalization problem. This problem is exacerbated in the digital goods market because copies of digital goods can be perfect substitutes of the original. Many digital goods/service producers take advantage of technology...

Loreto is a place of contrasts. Located on the western flank of the Amazon jungle, it is by far Peru’s largest state in terms of size, but also among those with the lowest population density. Its capital, the city of Iquitos, sits on the western bank of the Amazon River, surrounded by...

Experts’ opinions are widely considered for investment decisions. We collect textual information from cryptocurrency experts, study the dynamics in their discussion topics and their sentiment in relation to market movements. Based on the analysis we test various hypothesis which span if the...

Live-streaming advertising in e-commerce is soaring. Both Amazon and Alibaba have employedthis novel marketing model to engage consumers by sequentially exhibiting differentproducts through live-streaming videos. In this paper we adopt a mechanism design frameworkto model live-streaming...

District energy systems can not only reduce energy consumption but also set energy supply dispatching schemes according to demand. However, not only the correlation between multiple optimization objectives, but also the time-varying energy demand is ignored when establishing and solving the...

Three-short pass cooling channels are typical internal cooling structures used in turbine blades. It well manipulates the flow field and controls heat transfer. However, a high-pressure pressure drop is one of the main concerns of this cooling channel design. Numerous prior works have varied...

The aggregation and transport of biochar colloids (BCs) in the soil and groundwater is critical for applying biochar in the field and biochar long-term environmental risk assessment. This research aimed to study the influence of dissolved organic matter (DOM) with different molecular weights...

Owing to excellent activity and selectivity for two-electron O2 reduction to H2O2, well-dispersed AuPd nanoalloy cocatalyst is high desired for photocatalytic H2O2 production. In practice, however, it is hardly realized due to technical difficulty. Utilizing the directed transfer of...

The requirement of sustainable energy is of great significance for easing the energy shortage crisis, in which the oxygen reduction reaction (ORR) in metal-air batteries and fuel cells plays a crucial role in efficient energy conversion. The development of noble-metal-free, efficient, and stable...

Load forecasting, especially short-term load forecasting, is of great significance to the safe operation of power grids and power system optimization. Historical data is commonly applied in the most of existing methods of load forecasting to predict the future data in one time step, which is...