| Id |
Subject |
Object |
Predicate |
Lexical cue |
| T147 |
0-123 |
Sentence |
denotes |
To examine the cause of reduced performance, the surface potential of the filter web was measured (Figure 3 and Figure S6). |
| T148 |
124-337 |
Sentence |
denotes |
The surface charges of the filter media are not consistently positive or negative; instead, both positive and negative charges can exist simultaneously, compensating the overall charges on the filter surface [45]. |
| T149 |
338-463 |
Sentence |
denotes |
Therefore, for such cases, the average surface potential over an area can be less meaningful than the variation of potential. |
| T150 |
464-638 |
Sentence |
denotes |
In Figure 3, the surface potential across the horizontal line was measured by line-scanning, and the fluctuation of the voltage values was observed as an important parameter. |
| T151 |
639-865 |
Sentence |
denotes |
The surface potential of the untreated filter webs from respirators A and B ranged from −1.6 kV to +4.4 kV, and these surface charges contributed to particle capture either by coulombic attraction or induced polarization [46]. |
| T152 |
866-996 |
Sentence |
denotes |
When the electret media was exposed to IPA, EtOH, and detergent solution, the range of surface potential was considerably reduced. |
| T153 |
997-1135 |
Sentence |
denotes |
In particular, IPA-treated respirator exhibited nearly 0 kV invariably across all areas, clearly indicating the loss of surface potential. |
| T154 |
1136-1319 |
Sentence |
denotes |
The EtOH or detergent-treated respirators showed a slightly larger variation than the IPA-treated ones, indicating that surface charges may not be completely lost by those treatments. |
| T155 |
1320-1541 |
Sentence |
denotes |
The remaining charges would contribute to electrostatic filtration mechanism, as indicated by the higher filtration efficiency of EtOH and detergent-treated respirators compared to that of the IPA-treated ones (Figure 2). |
