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Record W2333416699 · doi:10.1021/ef300914f

Microwave Absorption Capability of High Volatile Bituminous Coal during Pyrolysis

2012· article· en· W2333416699 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 · 2012
Typearticle
Languageen
FieldChemistry
TopicMicrowave-Assisted Synthesis and Applications
Canadian institutionsDeep River Science Academy
Fundersnot available
KeywordsMicrowaveCoalPyrolysisBituminous coalReflection lossDielectricMaterials scienceAbsorption (acoustics)Dielectric lossAnalytical Chemistry (journal)Penetration depthChemistryOptoelectronicsOpticsComposite materialOrganic chemistry

Abstract

fetched live from OpenAlex

The microwave absorption capability of an eastern high volatile bituminous coal from West Virginia was investigated by measuring the dielectric properties from room temperature to ∼900 °C in ultrahigh purity (UHP) argon, at both 915 and 2450 MHz. The dielectric properties remain relatively constant below 500 °C. As the temperature continues to increase, however, the relative dielectric constant and loss factor increase dramatically. This is due to the release of volatiles, resulting in the increased electrical conductivity and higher microwave loss. The calculation of microwave penetration depth shows that the pyrolysis process significantly improves the microwave absorption capability of the coal at high temperatures. The calculated reflection losses of the coal sample suggest that the maximum microwave absorption with the reflection losses of −41.25 dB and −32.54 dB can be obtained for the coal having thicknesses of 0.14 and 0.20 m at 915 and 2450 MHz, respectively. The sample dimension has a significant effect on the overall performance of microwave absorption of coal during pyrolysis and thus on the efficiency of microwave coal pyrolysis.

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 categoriesInsufficient payload (model declined to judge)
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 score0.012
Threshold uncertainty score0.999

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)0.0020.000

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 head0.212
Teacher spread0.201 · 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