The application of a simple absorbing boundary algorithm to cylindrical waveguide
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Bibliographic record
Abstract
The authors present the implementation of a very simple, yet very effective, plane absorbing boundary algorithm for a rectangular waveguide operated in the TE/sub 10/ mode analyzed with the FDTD (finite-difference time-domain) method. This absorbing boundary produces an amount of reflection smaller than 0.02% at the tuning frequency, works for arbitrary incidence angle, and is very local, meaning that the algorithm requires the knowledge of the field values at grid points located only one space increment away from the absorbing boundary. The algorithm was developed from physical understanding of the wave propagation on a discrete mesh, with the concepts of phase and group velocities. The efficacy of the absorbing boundary is demonstrated by measuring the percentage of reflection in the frequency domain.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
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Full frame distilled prediction
Teacher imitationNot 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.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
Machine scores (provisional)
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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 it