Investigation on Hygroscopicity of Low Sensitive Gun Propellant Based on Ladder‐Structured Nitrocellulose
Why this work is in the frame
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Bibliographic record
Abstract
ABSTRACT Hygroscopicity plays a crucial role in the application of gun propellant. However, hygroscopicity of low sensitive gun propellant based on ladder‐structured nitrocellulose (LNC propellants) was not clear yet. In this work, moisture absorption behavior and hygroscopic mechanism of LNC propellants were studied by dynamic vapor sorption (DVS) instrument and molecular dynamics (MD) simulation. The DVS result shows that the capacity of moisture absorption for LNC propellants is obviously decreased by 60.60% (from 0.99% to 0.39% at RH of 50%) compared with propellants based on conventional nitrocellulose (NC), showing that moisture absorption behavior of low sensitive gun propellants can be inhibited well after the introduction of LNC. The Peleg absorption model provides a more accurate representation of the hygroscopic properties of LNC propellant, which can effectively predict the variation of moisture content throughout the moisture absorption process. Moreover, MD simulation results show that LNC has a weaker interaction with H 2 O molecule due to the grafting reaction of lots of hydroxyl group compared with NC, leading to lower hygroscopicity of LNC propellants. These results are expected to boost the practical application of low sensitive gun propellants containing LNC into the artillery.
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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 it