Characterization of non-thermal dielectric barrier discharges at atmospheric pressure in presence of microfibrillated cellulosic foams
Why this work is in the frame
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Bibliographic record
Abstract
Abstract Plasma processing of sustainable polymers from renewable resources has recently gained significant interest. This work reports the ignition of plane-to-plane dielectric barrier discharges at atmospheric pressure operated in nominally high-purity helium with microfibrillated cellulose (MFC) foams derived from woody biomass taking up the entirety of the gas gap. Over the whole range of experimental conditions examined, discharge ignition and propagation mostly occurs through the foam from one electrode to the other (volume discharge). For outgassed foams, current–voltage characteristics suggest a glow-like discharge regime at 60 kHz and a filamentary behaviour at 10 kHz. However, optical imaging reveals localized emission patterns in both cases. Significantly less plasma-induced damage is observed through the MFC foams at 10 kHz than at 60 kHz. From these findings, the apparent homogeneous regime at 60 kHz seems to result from multiple discharges sustained in localized damaged zones. For non-outgassed samples exposed to the helium gas flow, gaseous species trapped in the MFC foams yielded to a significant increase of the discharge power and thus caused more significant damage to the cellulosic material.
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Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.002 |
| Science and technology studies | 0.000 | 0.001 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 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 it