On the modification of the dielectric barrier discharge electrical properties over one-hour operation using measurements without discharge
Bibliographic record
Abstract
Abstract In this work, the electrical properties of a semi-industrial dielectric barrier discharge (DBD) system, characterized by a single thin dielectric, were investigated over a one-hour operation period. The discharge, generated in nitrogen, operated in the classical filamentary regime. While the discharge operated over an hour, measurements at low applied voltage, i.e. without discharge, have been introduced. The applied voltage and the charge were recorded during the non-discharge period. These measurements, analyzed using Lissajous figures and an equivalent circuit model of the setup, allowed extraction of several electrical parameters. Using basic PSIM simulations, it is first shown that the parasitic resistance (Rp) and capacitance (Cp) induce changes in the area and slope of the Lissajous figures, respectively. Those are usually used to estimate the power (Poff) and the cell capacitance (Ccell). The results demonstrated that both Poff and Ccell are increasing over one hour. Such trends are seen to be occurring whatever the electrical conditions chosen for the discharge operation. Simultaneous time resolved temperature measurements on the polymer present the same evolution than Poff and Ccell. From the strongest variation, Cp is estimated to increase from 5 pF to 64 pF, while Rp is decreasing from 14 MΩ to 3 MΩ. Such modifications are not trivial. No change in power was observed during the one-hour discharge operation. Therefore, several hypotheses are proposed to explain the observed phenomena, particularly regarding the relationship between temperature and the charge storage properties of PTFE, as discussed in recent literature.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.001 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.001 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".