Finite Element Modeling of the Magnetic Reconnection Experiment (MRX)
Bibliographic record
Abstract
Summary form only given. The Magnetic Reconnection Experiment (Hsu, et al. Phys. Plasmas, Vol, 8, pp. 1916-1928 (2001)) is modeled using a two dimensional finite element code. MRX is a laboratory experiment designed to study magnetic reconnection under well diagnosed controlled conditions. While of a much smaller scale than the magnetosphere, this experiment allows a direct analysis of several fundamental physical phenomena occurring in magnetic reconnection, including plasma transport and heating. In the simulations, the equilibrium and transport equations are discretized with finite elements on an unstructured triangular mesh. The equilibrium is obtained from solving the Grad-Shafranov equation. Plasma transport and magnetic reconnection are modeled in a resistive MHD approximation. Specifically, we solve for a reduced set of Maxwell equations, as well as for the conservation of particles, momentum and energy for electrons and ions. Preliminary results are presented for finite helicity, as well as for zero helicity reconnection.
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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 | 0.000 | 0.001 |
| Meta-epidemiology (narrow) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.001 | 0.001 |
| Insufficient payload (model declined to judge) | 0.012 | 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".