Modern Applied Science, Vol. 3, No. 9, September, 2009, all in two files, Part B
Bibliographic record
Abstract
Polyvinyl alcohol(PVA)/[La(NO 3 ) 3 +Fe(NO 3 ) 3 ] composite nanofibers were fabricated by electrospinning, and polycrystalline LaFeO 3 nanofibers were prepared by calcination of the PVA/[La(NO 3 ) 3 +Fe(NO 3 ) 3 ] composite nanofibers at 600ºC for 10h.The samples were characterized by using X-ray diffraction spectrometry(XRD), scanning electron microscopy(SEM), thermogravimetric-differential thermal analysis(TG-DTA), and Fourier transform infrared spectrometry(FTIR).The results show that PVA/[La(NO 3 ) 3 +Fe(NO 3 ) 3 ] composite nanofibers are amorphous in structure, and pure phase LaFeO 3 nanofibers are orthorhombic with space group Pn*a.The surface of as-prepared composite nanofibers is smooth, and the diameter is ca.180nm.The diameter of LaFeO 3 nanofibers is smaller than that of the relevant composite fibers.The surface of the LaFeO 3 nanofibers becomes coarse with the increase of calcination temperatures.The diameter of LaFeO 3 nanofibers is about 80nm, and the length is greater than 100μm.The mass of the sample remains constant when the temperature is above 500ºC, and the total mass loss percentage is 90%.Possible formation mechanism of LaFeO 3 nanofibers is preliminarily advanced.
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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 | 0.001 | 0.001 |
| Meta-epidemiology (narrow) | 0.001 | 0.001 |
| Meta-epidemiology (broad) | 0.001 | 0.001 |
| Bibliometrics | 0.002 | 0.002 |
| Science and technology studies | 0.001 | 0.001 |
| Scholarly communication | 0.002 | 0.002 |
| Open science | 0.001 | 0.002 |
| Research integrity | 0.001 | 0.001 |
| Insufficient payload (model declined to judge) | 0.339 | 0.198 |
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; the direct Gemma label and the distilled Codex classifier agree on what is shown here.
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".