Soils are a large source of atmospheric methane, which is a prevalent greenhouse gas. The vertical flux pattern of methane in soils is unclear. We investigated relationships between methane vertical fluxes in the soil, total organic carbon (TOC) and methanogens in a riparian buffer of the Living...

Soils are a large source of atmospheric methane, which is a prevalent greenhouse gas. The vertical flux pattern of methane in soils is unclear. We investigated relationships between methane vertical fluxes in the soil, total organic carbon (TOC) and methanogens in a riparian buffer of the Living...

Due to the limited electrode structure types of current CH 3 NH 3 PbCl 3 perovskite single crystal photodetectors, these devices either have good performance but small active area or have large active area but poor performance, which greatly limits their applications. To realize the high...

Traditionally, optimal preventive maintenance strategies are derived under deterministic and constant rate demand. Using "option", a powerful financial derivative tool to tackle optimization problem under uncertain environment, this paper presents an analytical, option-based cost model for...

Maintenance operations have a direct influence on production performance in manufacturing systems. Short-term production analysis is imperative to enable manufacturing operations to optimally respond to dynamic changes in the system behavior. However, most of the conventional decision support...

The present study aims at enhancing the wear resistance of Ti–6Al–4V by laser surface nitriding. Laser surface treatment has been carried out by melting of the sand blasted Ti–6Al–4V substrate using a high power continuous wave Diode laser with nitrogen as shrouding environment (at a gas...

Two results in a recent paper by Wang and Cheng [Wang, J-B and TCE Cheng (2007). Asia-Pacific Journal of Operational Research, 24, 245–261] are incorrect because job processing times are variable due to both deteriorating jobs and learning effects, which is not taken into account by the...