1 Subjects: “...mechanical design...”

2 Subjects: “...mechanism...”

3 Subjects: “...mechanism...”

4 Subjects: “...physical and mechanical properties...”

5 Subjects: “...mechanical properties...”

6 Subjects: “...enrichment mechanism...”

7 Subjects: “...frequency up-conversion mechanism...”

8 Subjects: “...mechanism...”

9 Subjects: “...mechanism...”

10 Subjects: “...mechanism...”

11 Subjects: “...mechanism design...”

12 Subjects: “...Clean Development Mechanism...”

13 Subjects: “...micro electro mechanical systems (MEMS)...”