Number: 007-0582 Abstract Title: A Closed-loop Supply Chain Model for Managing Overall Optimization of Eco-efficiencyTitle: A Closed-loop Supply Chain Model for Managing Overall Optimization of Eco-efficiency Authors: Name: Wei D. Solvang, Ziqiong Deng, Bjoern Solvang Organization: Department of Industrial Engineering, Narvik University College, Norway Address: Lodve Langes gate 2, pb. 385, N-8...

This pollution accumulation model shows that the environmental absorption capacity is impacted by economic activity. The resulting optimal control problem has two inter-related state variables: the stock of pollution and the absorption capacity of the environment. The stock of pollution decreases with environmental absorption capacity and increases with the rate of current emissions, which is c...

In this paper, we propose a model of aerial pollution of an urban area, the city of Ouagadougou. We develop a mathematical model of the spatial area from the pollution point of view. This model is based both on the concept of pretopological structure and the concept of random sets. The reader who is not familiar with pretopological concepts can find out all he needs on the 2 Studia Informatica ...

If the EKC holds, we might be tempted to make an even stronger statement: growthpromoting policies in less developed countries (LDCs) cause incomes to rise and are thus environmentally friendly. We do not need to bother negotiating with developing countries to reduce emissions. Let LDCs develop, and they will eventually solve their own environmental problems, even if in the short run pollution ...

Air and soil pollution from mining activities has been considered as a critical issue to the health of living organisms. However, few efforts have been made in distinguishing the main pathway of organism genetic damage by heavy metals related to mining activities. Therefore, we investigated the genetic damage of Leymus chinensis leaf cells, the air particulate matter (PM) contents, and concentr...