New gas hydrate structures
Bibliographic record
Abstract
We have developed high-temperature techniques to measure in situ neutron powder diffraction and synchrotron x-ray powder diffraction. The new furnace for high-temperature neutron diffraction study does not yield any extra peaks due to heaters and refractory, thus we are able to easily measure very small neutron peaks from the sample. Quality neutron-diffraction data at high temperatures up to 1600C were analyzed by Rietveld method for various materials as calcium titanate, yttrium tantalate and silicon nitride. The tilting of Ti-O octahedra was found to be the key to understand the phase transitions in the calcium titanate. The high-resolution synchrotron X-ray diffraction enabled to determine exactly the unit-cell parameters around a phase transition point and the phase transition temperatures of perovskite-related materials as A-site deficient lanthanum titanate and barium titanate. The axial ratio b/a of orthorhombic lanthanum titanate continuously decreased with an increase of temperature.
Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.
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 | 0.001 | 0.003 |
| Science and technology studies | 0.000 | 0.001 |
| Scholarly communication | 0.000 | 0.001 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.026 | 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".