1 Subjects: “...zero emissions port...”

2 Subjects: “...life cycle emission...”

3 Subjects: “...N2O emission factor...”

4 Subjects: “...emissions...”

5 Subjects: “...carbon emission...”

6 Subjects: “...positron emission tomography-computed tomography...”

7 Subjects: “...non-exhaust emissions...”

8 Subjects: “...greenhouse gas emissions...”

9 Subjects: “...thermal emissivity...”

10 Subjects: “...CO2 emissions...”

11 Subjects: “...carbon emission...”

12 Subjects: “...carbon emission...”

13 Subjects: “...amplified spontaneous emission (ASE)...”

14 Subjects: “...carbon emissions...”

15 Subjects: “...emissions...”

16 Subjects: “...acoustic emission...”