1 Subjects: “...Internet-of-Things...”

2 Subjects: “...Internet-of-Things...”

3 Subjects: “...industrial Internet of Things...”

4 Subjects: “...Internet of things...”

5 Subjects: “...Internet of Things...”

6 Subjects: “...Internet of Digital Triad Things (IoDTT)...”

7 Subjects: “...Internet-of-Things (IoT)...”

8 Subjects: “...industrial internet of things...”

9 Subjects: “...Internet of Things...”

10 Subjects: “...internet of things...”

11 Subjects: “...Internet of things...”

12 Subjects: “...Industrial Internet of Things...”

13 Subjects: “...energy internet...”

14 Subjects: “...energy internet...”

15 Subjects: “...internet of things...”

16 Subjects: “...internet of things...”

17 Subjects: “...Internet of things (IoT)...”