Mass Conservation Implications of a Reaction Mechanism
Bibliographic record
Abstract
A proposed reaction mechanism in chemical kinetics contains implications for mass-conservation equations (stoichiometry) governing the reacting system. The only information required to determine the number and a particular set of these equations is the stoichiometric matrix of the mechanism, N. The mechanism should first be tested to determine that it is conservative: that it is in accordance with a closed-system assumption. The general criterion is given and a simple version is provided when the formula matrix of the species, A, is also known. For a conservative system, a procedure is given to show how the interactive Java applet JSTOICH can be used to determine the number and a set of mass-conservation equations implied by N (A need not be known). Similarly, if A is known, JSTOICH can be used to determine the number of special stoichiometric restrictions, r . If r = 0, the set of independent element-conservation equations provide the required equations; if r > 0, the set of equations generated by JSTOICH must be used. Examples are given to illustrate the various procedures.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot 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.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.004 | 0.009 |
| Meta-epidemiology (narrow) | 0.001 | 0.001 |
| Meta-epidemiology (broad) | 0.001 | 0.001 |
| Bibliometrics | 0.001 | 0.000 |
| Science and technology studies | 0.002 | 0.004 |
| Scholarly communication | 0.002 | 0.006 |
| Open science | 0.003 | 0.002 |
| Research integrity | 0.002 | 0.003 |
| Insufficient payload (model declined to judge) | 0.013 | 0.002 |
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.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
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".