Figure 1From: Robust interval quadratic programming and its application to waste management under uncertainty The study system (Symbols of “D1, D2, D3, D4 and D5” denote “Lvyuan, Chaoyang, Nanguan, Kuangcheng and Erdao districts, respectively; “LD” means landfill; “XXI” denotes “Xinxiang Incinerator”; “BJ, NG, CJ, XM, HG and NH” denote “transfer stations 1, 2, 3, 4, 5 and 6”, respectively). Back to article page