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Record W1873215934 · doi:10.1109/aps.1999.789394

Comparative study of lossy dielectric wedge diffraction for radio wave propagation modeling using UTD and FDTD

2003· article· en· W1873215934 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 Waterloo
Fundersnot available
KeywordsFinite-difference time-domain methodDiffractionLossy compressionWedge (geometry)DielectricOpticsUniform theory of diffractionReflection (computer programming)Ray tracing (physics)Radio propagationRadio waveMaterials sciencePlane waveAcousticsWave propagationPhysicsTelecommunicationsComputer scienceOptoelectronics

Abstract

fetched live from OpenAlex

The authors focus on the indoor site-specific modeling of radiowave propagation. In indoor environments, home or office buildings, most of the structures causing diffraction can be categorized into half planes, such as soft and hard partitions, and right-angle wedges, such its wall corners. They study the total field, including incident, reflected, diffracted and/or transmitted fields, in the whole space around the right-angle wedge and thick lossy dielectric half plane for both TE and TM polarisations. Transmission and reflection coefficients are given for lossy dielectric slabs, which are included in the modified UTD formula. Results are compared to those obtained by the FDTD method so as to evaluate the UTD based methods.

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: Empirical · Consensus signal: Empirical
Teacher disagreement score0.418
Threshold uncertainty score0.341

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 head0.075
GPT teacher head0.326
Teacher spread0.251 · 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