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Record W1968353548 · doi:10.1139/s04-026

Fundamental approach to the fluence-based kinetic and electrical energy efficiency parameters in photochemical degradation reactions: polychromatic light

2005· article· en· W1968353548 on OpenAlexvenueno aff
Mihaela I. Stefan, James R. Bolton

Bibliographic record

VenueJournal of Environmental Engineering and Science · 2005
Typearticle
Languageen
FieldChemistry
TopicElectrochemical Analysis and Applications
Canadian institutionsnot available
FundersAmerican Water Works Association Research FoundationWater Research Foundation
KeywordsFluenceQuantum yieldReaction rate constantPhotodissociationRadiant energyMonochromatic colorKinetic energyRadiationYield (engineering)Materials scienceOpticsAtomic physicsPhotochemistryChemistryKineticsPhysicsFluorescenceThermodynamicsLaser

Abstract

fetched live from OpenAlex

When the logarithm of the concentration of a photolyzed component is plotted against the fluence, one usually obtains a first-order plot, and from the slope one can obtain a "fluence-based rate constant". In this study, theoretical expressions are derived for fluence-based rate constants for both monochromatic and polychromatic radiation, and are shown to be fundamental and not dependent on experimental parameters. Therefore, such rate constants can be reproduced from one laboratory to another, as long as the polychromatic light source exhibits similar spectral characteristics. An important quantity that can be obtained from the fluence-based rate constant is the quantum yield. As an example, the quantum yield for the photolysis of atrazine is determined to be 0.033 using the monochromatic fluence-based rate constant. The analysis is extended to the polychromatic light sources, and the expression of polychromatic fluence-based rate constant is derived and validated experimentally for atrazine and NDMA. The new concepts are developed further to analyze the figure-of-merit electrical energy per order (E EO ), and it is shown that the E EO depends on the same fundamental photochemical parameters. Key words: fluence-based rate constant, quantum yield, UV radiation, fluence rate, kinetics, photochemical parameters.

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 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: none
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.532
Threshold uncertainty score0.233

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 head0.004
GPT teacher head0.182
Teacher spread0.178 · 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 teacher head, not a consensus.

The models applied no category: nothing in the taxonomy fit this work.
Study designBench or experimental
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

Citations32
Published2005
Admission routes1
Has abstractyes

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