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Record W2384408089

THERMODYNAMICS AND KINETICS ABOUT PYROLYSIS OF A CARBON MATRIX COMPOUND

2001· article· en· W2384408089 on OpenAlexaff
Wen Zhen-Yi

Bibliographic record

Venuenot available
Typearticle
Languageen
FieldEngineering
TopicSimulation and Modeling Applications
Canadian institutionsScience North
Fundersnot available
KeywordsPyrolysisActivation energyRadicalMaterials scienceKineticsCarbon fibersThermodynamicsKinetic energyMatrix (chemical analysis)Ring (chemistry)Physical chemistryOrganic chemistryChemistryComposite material
DOInot available

Abstract

fetched live from OpenAlex

The pyrolysis mechanism of carbon matrix compound CH3-Ar-CH2-NH2 was studied. Using the AM1 method and UHF calculation in Gaussian 98 program package, thermodynamic and kinetic data for 5 types of designed pyrolysis path of the compound were calculated. The calculation result showed that the reaction producing CH3-Ar-CH2 and NH2 is the main pyrolysis reaction path. The calculated activation energy is Ea=230.78kJ/mol, while the experimental apparent activation energy of the compound is Ea=206.78kJ/mol. Comparing with experiment data demonstrated that the calculated bond energy parameters are reliable. Parts of the optimized geometry parameters of the reactant and production free radicals were analyzed. After the compound CH3-Ar-CH2-NH2 as carbon matrix compound are Pyrolyzed, the equilibrium geometries of produced free radicals show that plane orientation of the polymeric ring aromatic moleculars will be good when free radicals polymerized are fused aromatic ring structure.

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 machine prediction

Teacher imitation

Not 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.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.000
Version: metacan-v3-hybrid-931329e0061cValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Simulation or modeling · Consensus signal: none
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.002
Threshold uncertainty score0.007

Distilled classifier scores by category (both heads)

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 communication0.0000.001
Open science0.0000.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0020.000

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 head0.011
GPT teacher head0.244
Teacher spread0.233 · 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

Classification

machine, unvalidated

Machine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.

The models applied no category: nothing in the taxonomy fit this work.
Study designSimulation or modeling
Domainnot available
GenreEmpirical

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".

Quick stats

Citations0
Published2001
Admission routes1
Has abstractyes

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