1 Subjects: “...fiber optic sensors embedded in concrete...”

2 Subjects: “...optical sensors...”

3 Subjects: “...optical sensors...”

4 Subjects: “...fiber optics sensors (FOS)...”

5 Subjects: “...fiber optic sensors...”

6 Subjects: “...optical sensor...”

7 Subjects: “...reflective optical sensor...”

8 Subjects: “...optical sensors...”

9 Subjects: “...optical sensors...”

10 Subjects: “...optical sensor...”

11 Subjects: “...optical sensor...”