Environmental Science and Pollution Research - To further reduce the in-situ sludge from landfill, Fe2+-activated sodium persulfate combined with vacuum preloading was first proposed. Firstly, the... 相似文献
Pollution from supply chains can be controlled through the high level of efficiency realized by green supply chains. However, realizing a green supply chain depends on partners’ collaboration intentions. The purposes of this study are to explore the influence of oligopolies created through government intervention and how they can promote supply chain partners’ collaboration intentions in the context of green supply chains. Spearman’s correlation analysis, partial least squares, and the Sobel test are the main approaches adopted to evaluate the theoretical framework and hypotheses of this study. Our findings indicate that, in addition to a few leaders of the supply chain obtaining market order distribution authority, oligopolies created through government intervention guide consumers to more fully scrutinize these supply chain leaders and their partners. When their partners exhibit a lower collaboration intention in green supply chain improvement and increase the pollution emission risk, it is easy to induce and increase social pressure from consumers and thus pressure these leaders to reduce or even cancel the order distribution of these partners. To avoid order profit loss, these partners will continue to actively maintain their collaboration intentions in the green supply chain. In addition, environmental risk audits by supply chain leaders’ interventions are a common approach to improve green supply chains. However, partners are usually unwilling to cooperate with leaders’ audit interventions and show lower collaboration intentions. However, social pressure can threaten partners’ order profits and thus drive partners to show positive collaboration intentions and further accept leaders’ reasonable interventions in environmental risk audits and will have a positive effect on green supply chain improvement. Based on the above, to expedite the improvement of the green supply chain, oligopolies created through government intervention are not only an important external force but also an important national strategy in green environmental improvement.
Environmental Science and Pollution Research - The formation and evolution of sulfate (SO42?) and nitrate (NO3?) secondary contaminants under different stages of pollution episodes and... 相似文献
Environmental Science and Pollution Research - Tantalum–niobium ore belongs to associated radioactive ore, which is accompanied by a certain amount of radioactive uranium and thorium. The... 相似文献
Environmental Science and Pollution Research - With the development of green logistics and the promotion of new energy vehicle development policies domestically and abroad, electric vehicles have... 相似文献
Environmental Science and Pollution Research - Delimiting basic farmland is essential to ensure food security and maintain social stability. Determining the quantity and spatial layout of the basic... 相似文献
This paper investigates the influence of near-bank vegetation patches on the bed morphological adjustment in open channel flow systems. The 2D depth-averaged hydro-morphological model is adopted for this investigation, which is first validated by laboratory experimental data measured in an open channel with a single near-bank vegetation patch. The validated model is then applied for extensive numerical simulations, with the aim of conducting a systematic analysis of the influence of different geometric controlling parameters on the bed morphological evolution. The controlling parameters taken into account for numerical analysis include the angle of repose value (RAV) of sediment, vegetation density (VD), patch length (PL) and patch width (PW). The numerical results and analysis show that: (1) the RAV of sediment with slope-failure parametrization only influences the shape of the transverse bed topography in the junction region; (2) increase in VD, PL and PW that substantially enhances flow blockage effect encourages the growth of the pool adjacent to the patch in three dimensions; (3) increase in VD, PL and PW produces analogous retrogressive erosion (erosion toward the upstream) in the pool region, presumably due to the increase in flow resistance. Additional numerical experiments suggest that the staggered-order distribution of multiple patches might be an optimal choice for channel restoration and conservation since pools and riffles with larger scales can be produced.
