Nonuniform Scattering of Microwave Radiation Due to Layered DUSA Storm: Theory and Experiment
Bibliographic record
Abstract
Wireless communication networks of desert-belt nations can be severely compromised by frequent dust/sand (DUSA) storms. Existing attenuation and scattering models for electromagnetic (EM) waves often consider homogeneous DUSA media. This article proposes an analytical model of a layer-based DUSA storm to monitor the EM attenuation from different DUSA layers. A lab-based experimental setup is used to measure the attenuation from a specific DUSA layer. The measured results are used to validate an equivalent professional simulator [high-frequency structure simulator (HFSS)] model of the DUSA layer. The agreement between the proposed analytical and simulated results demonstrates the redundancy of complicated experimental validation process. The simulation model also allowed the monitoring of EM attenuation due to different particle sizes, shapes, and concentrations in different homogeneous layers of the DUSA storm. The predicted EM attenuations agreed well with the data available in the literature.
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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) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.001 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.001 | 0.000 |
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.
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".