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Record W4385273798 · doi:10.26434/chemrxiv-2023-bn642

Predicting Ion-Solvent Clustering in Differential Mobility Spectrometry using Anharmonic Thermochemistry

2023· preprint· en· W4385273798 on OpenAlexafffund
Christopher R. M. Ryan, Alexander Haack, W. Scott Hopkins

Bibliographic record

VenueChemRxiv · 2023
Typepreprint
Languageen
FieldChemistry
TopicMass Spectrometry Techniques and Applications
Canadian institutionsUniversity of Waterloo
FundersNatural Sciences and Engineering Research Council of CanadaDeutsche ForschungsgemeinschaftAlliance de recherche numérique du CanadaGovernment of Ontario
KeywordsThermochemistryAnharmonicityDispersion (optics)Plot (graphics)Ion-mobility spectrometryChemistryCluster (spacecraft)Cluster analysisAnalytical Chemistry (journal)Mass spectrometryMaterials sciencePhysicsPhysical chemistryComputer scienceMathematicsOpticsChromatographyStatisticsQuantum mechanics

Abstract

fetched live from OpenAlex

Computed dispersion plot models can provide a window to understanding differential mobility spectrometry on a fundamental level and thus can be used as a complementary model to compare with experimental data obtained in a laboratory setting. However, current computational methods yield semi-quantitative agreement with experiment, specifically in solvated environments. Previous studies have assessed the shift in agreement of dispersion models and experimental data by employing different orders of 2-temperature theory. Results show qualitative accuracy in the modeled dispersion curves where the curve shape is comparable to that of experimental data, however, there remains a shift in SV or CV between the two. In this study, we employ anharmonic treatments of solvent-cluster thermochemistry, and assess its affect on dispersion plot accuracy of ions in solvated environments.

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)0.002
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: Simulation or modeling
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.004
Threshold uncertainty score0.008

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0010.002
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0010.001
Science and technology studies0.0000.001
Scholarly communication0.0010.001
Open science0.0010.001
Research integrity0.0010.001
Insufficient payload (model declined to judge)0.0010.000

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 head0.040
GPT teacher head0.296
Teacher spread0.256 · 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

Citations1
Published2023
Admission routes2
Has abstractyes

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