Elimination gasoline vapor in oil tank by mechanical ventilation has disadvantages of long vent time poor safety, and low efficiency, however, those shortcomings can be better conquered if combusted gas is used in the process of the mechanical ventilation. Based on former studies, the research on the effects of inlet location on gasoline vapor’s inert replacement in oil tank by combusted inert gas is studied experimentally in this paper. The conclusions in this paper can provide some useful guidance for the field project of gasoline vapor’s inert replacement in oil tank.

Food waste is generally seen as highly unethical. Recycling food waste requires establishing information-sharing channels in the food supply chain. However, the lack of relationship between suppliers and potential demanders hinders the delivery of waste products, conceptualized as "structural holes" in social network research. The food recovery digital platform in the food supply chain acts as a market intermediary to bridge the communication at the two ends of the structural holes, fulfilling the function of "brokers", which has been proven in the transaction cost theory to reduce the transaction costs and improve the performance of the supply chain. However, related research on digital platforms and supply chains ignores this new type of brokerage. This research combines network research, transaction cost research, and supply chain research and explores the role of food recovery platforms in food waste problems in the food supply chain.