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Record W2005485572

New concepts for the multiresolution time domain (MRTD) analysis of microwave structures

2004· article· en· W2005485572 on OpenAlex

Why this work is in the frame

A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.

affAt least one author lists a Canadian institution in the pinned OpenAlex snapshot.

Bibliographic record

Venuenot available
Typearticle
Languageen
FieldEngineering
TopicElectromagnetic Simulation and Numerical Methods
Canadian institutionsUniversity of Toronto
Fundersnot available
KeywordsFinite-difference time-domain methodConvergence (economics)IntegratorStability (learning theory)Applied mathematicsAlgorithmLimit (mathematics)Computer scienceMathematicsPartial differential equationFinite difference methodTime domainMathematical optimizationMathematical analysisBandwidth (computing)PhysicsTelecommunications
DOInot available

Abstract

fetched live from OpenAlex

nique presents a natural framework for the implementation of spatio-temporal adaptive gridding. This feature can lead to significant reductions in the simulation time for large-scale problems of practical interest to the microwave community. With the exception of the Haar-based MRTD scheme, all the other methods presented in the literature employ high-order finite difference operators for the numerical approximation of the spatial partial derivatives of Maxwell’s equations. However, little attention has been devoted to the study of the convergence properties of these schemes, which are typically associated with significantly increased numerical work and stability limits that are small fractions of the FDTD Courant stability limit. In this paper, it is first noted that high-order spatial finite differences still produce second-order error convergence for the method, as long as they are coupled with the second-order accurate leap-frog time integration. This prompts us to investigate other possibilities for the formulation of MRTD schemes, revisiting the choice of the leap-frog scheme for time-integration, with the purpose of improving the convergence properties of MRTD, employing high-order time integrators. I.

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.

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: Simulation or modeling · Consensus signal: Simulation or modeling
GenreCandidate signal: Methods · Consensus signal: none
Teacher disagreement score0.673
Threshold uncertainty score0.290

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 head0.011
GPT teacher head0.289
Teacher spread0.278 · 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