Peristaltic Pumping System for Metering Aqueous Fertilizer
Bibliographic record
Abstract
In dryland areas, an aqueous fertilizer seed drill helps in proper germination of seed and good establishment of crops by providing soil moisture during sowing time. Until now a suitable pumping unit to meter and disperse aqueous fertilizer is not available. The objective of the present work is to optimize the design values of the pump variables for different discharge rates suitable for different dryland winter crops. A prototype pump was developed and evaluated with two levels of reel diameter (0.30 and 0.16 m); four levels of roller spacing (15.7,8.4 ; 6.29, 11.8 cm); three levels of liquid head (0.51, 0.46, and 0.41 m); three levels of rpm (50, 100, and ISO); and three flexible tube diameters (12.7,9.6, and 6.4 mm). Discharge data was collected from the flexible tubes mounted on the rollers of the pump at a particular rpm and for the given levels of other pump variables. At ISO rpm, an individual tube of 12.7 mm diameter gave highest discharge of441 I/h. For 0.1 m variation of head, discharge varied by a maximum of50 1/ h. An increase of 3.9 cm roller spacing affected the discharge by a maximum of 160 I/h at 150 rpm. The developed pumping system with nine rows is capable of delivering a discharge range of212 I/h to 396911h, which satisfies the water requirement of many dryland winter crops.
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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) | 0.002 | 0.001 |
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".