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Record W2320312082 · doi:10.1021/ef201214d

Influence of Depressurization and Cooling on the Formation and Development of Mesophase

2011· article· en· W2320312082 on OpenAlex

Why this work is in the frame

A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.

affAt least one author lists a Canadian institution in the pinned OpenAlex snapshot.

Bibliographic record

VenueEnergy & Fuels · 2011
Typearticle
Languageen
FieldEngineering
TopicFiber-reinforced polymer composites
Canadian institutionsUniversity of Alberta
Fundersnot available
KeywordsMesophaseCabin pressurizationChemical engineeringChemistryMaterials scienceHydrogenChemical reactionOrganic chemistryComposite materialPhase (matter)

Abstract

fetched live from OpenAlex

The effect of cooling and depressurization on the formation and growth of carbonaceous mesophase in petroleum vacuum residue was investigated using a novel stirred hot-stage reactor. This apparatus allowed the in situ observation of mesophase formation at 440 °C and 4–6.5 MPa under both hydrogen and nitrogen atmospheres. The use of a magnetic stirrer enabled experiments with milliliter volumes of liquid and the addition of catalyst. The in situ observations showed that cooling at constant pressure did not change the amount and size of the mesophase domains, except to arrest their growth by stopping the chemical reactions. Depressurization to atmospheric pressure, while maintaining reaction temperature, after the onset of mesophase formation increased the amount of observable mesophase material significantly. Depressurization before the onset of mesophase formation also induced the formation of observable mesophase earlier than if the reactor had been maintained at pressure.

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.

Full frame distilled prediction

Teacher imitation

Not 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.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.000
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Bench or experimental · Consensus signal: Bench or experimental
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.108
Threshold uncertainty score0.172

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.000
Science and technology studies0.0000.000
Scholarly communication0.0000.000
Open science0.0000.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0000.000

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.

Opus teacher head0.013
GPT teacher head0.183
Teacher spread0.171 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it