Bubble dynamic behaviours at various capillary orifices in a bioreactor with methane oxidizing bacteria suspension
Bibliographic record
Abstract
Abstract Bubble dynamic behaviour has a significant influence on methane bioconversion because a gas mixture including methane and oxygen is usually supplied into a bioreactor with a methane oxidizing bacteria suspension via capillary orifice, forming bubbles. In the work, bubble dynamic behaviours at various capillary orifices were experimentally visualized, as well as the movement of microorganisms was observed during bubble formation evolution. The experimental results showed the chemotaxis effect and the bubble expansion as two key factors affecting the movement of microorganisms in the bioreactor with methane oxidizing bacteria suspension. At the incline angle of 90°, the equivalent departure diameter and departure volume were the smallest, while the departure time was the shortest. With increasing inner diameter, the equivalent departure diameter and departure volume increased, but the waiting time was the longest and the departure time was the shortest at the inner diameter of 0.3 mm. In addition, the successive inrush of bubbles forming at the capillary orifice with 90° incline angle and 0.1 mm inner diameter resulted in the shock of the gas‐liquid interface, affecting the bubble dynamic behaviour. The results in this work contribute to the design of a high‐productivity bioreactor with an optimized aeration system for enhancing mass transfer of methane from the bubble to the bacteria suspension and subsequent methane bioconversion.
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How this classification was reachedexpand
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 itClassification
machine, unvalidatedMachine predicted; a candidate call from one teacher head, 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".