Fabrication of themal plastic micorfluidic devices with peristalic micropumps and microvalves
Bibliographic record
Abstract
Microfluidic devices with peristaltic pumps and valves have been fabricated based on the thermal plastic materials by using the rapid hot-embossing method. Two types of configurations of the microfluidic devices are presented. Both of them are based on the use of membrane layer made of thermoplastic elastomer materials. The frequency and pressure dependence of the pumping rate are studied and compared among the conventional, S-shape and U-shape designs. The maximum flow rate of the conventional peristaltic design is about 2 times of that of the U-shape design with the identical microfluidic channel under the same operation pressure. The advantage of S-shape and U-shape peristaltic design over the conventional design is that the number of electromagnetic valves used in the pneumatic manifold can be reduced. A simple rotary microfluidic device with peristaltic pumps was fabricated and the microvalving, micropumping and micromixing operations have been demonstrated.
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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 | 0.000 |
| 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 | 0.001 | 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".