Towards a Consistent Interpretation of Electro‐osmotic Drag in Polymer Electrolyte Membranes
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Bibliographic record
Abstract
Abstract In many experimental studies of polymer electrolyte membranes (PEMs), the electro‐osmotic drag coefficient is a property of primary interest. When protons are the only type of mobile ion present in the system, the coefficient is typically defined as the ratio between the molar water flux and the molar proton flux across the PEM. While most, if not all, experimental results suggest a value of order one, experimentalists have yet to arrive at a consensus regarding its exact value for a specific PEM at specific operating conditions. One reason for the variance in reported results could lie in the misinterpretation of the electro‐osmotic drag. This contribution uses physical models to clarify what a consistent definition and measurement of electro‐osmotic drag coefficients entails, thereby providing guidance for experimental studies of these membranes.
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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 | 0.000 |
| 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) | 0.000 | 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