1 Subjects: “...closed-loop supply chain...”

2 Subjects: “...hardware-in-the-loop...”

3 Subjects: “...causal loop diagram...”

4 Subjects: “...cloud-in-the-loop simulation...”

5 Subjects: “...closed-loop green supply chain...”

6 Subjects: “...adjustable-loop device...”

7 Subjects: “...closed-loop scheduling...”