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Record W4413997258 · doi:10.1016/j.jqsrt.2025.109650

Term energy analysis of iron monohydride (FeH)

2025· article· en· W4413997258 on OpenAlexafffund
Timothy Blackmore, D. W. Tokaryk

Bibliographic record

VenueJournal of Quantitative Spectroscopy and Radiative Transfer · 2025
Typearticle
Languageen
FieldMaterials Science
TopicHydrogen Storage and Materials
Canadian institutionsUniversity of New Brunswick
FundersNatural Sciences and Engineering Research Council of Canada
KeywordsTerm (time)Environmental scienceAstrobiologyPhysicsAstronomy

Abstract

fetched live from OpenAlex

MARVEL software was used to perform a global fit on all FeH transitions available in the literature to create an optimized and comprehensive term energy list. The diverse types of data, data sources, and electronic transitions that were used for this fit are organized and tabulated. To improve the fit, inconsistencies in the F 4 Δ -X 4 Δ analysis published in 1987 were fixed using modern computation and visualization techniques. F 4 Δ -A 4 Π transitions were identified in spectra published in the Kitt Peak archive and added to the fit. Also, several laser excitation and Fourier transform spectrometer measurements taken in our lab were added, including those from the newly discovered I 4 Φ electronic state. The final term energy list and transition list are given in the supplementary material. • Iron monohydride transitions were analysed from 16 sources plus those we measured. • 5190 transitions were inputted into MARVEL to generate 1648 energy levels. • Transition assignments from previous literature were updated when necessary. • Updated term energies are significantly more consistent with all the transitions.

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)0.001
metaresearch head score (Gemma)0.003
Version: metacan-v3-hybrid-931329e0061cValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Theoretical or conceptual · Consensus signal: none
GenreCandidate signal: Empirical · Consensus signal: none
Teacher disagreement score0.036
Threshold uncertainty score0.119

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0010.003
Meta-epidemiology (narrow)0.0010.001
Meta-epidemiology (broad)0.0010.002
Bibliometrics0.0040.003
Science and technology studies0.0010.000
Scholarly communication0.0010.001
Open science0.0020.001
Research integrity0.0010.001
Insufficient payload (model declined to judge)0.0360.005

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 head0.012
GPT teacher head0.302
Teacher spread0.291 · 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 designTheoretical or conceptual
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
Published2025
Admission routes2
Has abstractyes

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