Shielding Analysis of Enclosures Made of Arbitrary Simple Material Using a Novel Combination of Open Surface Integral Equations
Bibliographic record
Abstract
A new set of surface integral equations for computing the shielding effectiveness of an enclosure made of any simple (linear, homogeneous, and isotropic) material is presented and discussed. First, the assumption of a thin slab is used to ignore the equivalent currents on the side surfaces of the slab. Then, four equations are derived from the electric and magnetic field integral equations for the outside and inside regions of the slab. The total number of equations is then reduced to two independent equations by applying the approximate surface impedance relationships for a thin material slab. The established formulation is discretized through the method of moments by rooftop basis functions over flat quadrilaterals represented as bilinear surfaces, with razor-blade functions used for the testing procedure. It is shown that the electromagnetic response of a very thin material plate can be represented by the sum of the responses of a perturbed perfect electric conductor and a perturbed perfect magnetic conductor. The accuracy of the method is first evaluated for several frequencies and various types of materials, using available numerical methods and measurements. Then, a practical example of the magnetic shielding effectiveness of a rectangular enclosure made of a Mu-metal material is analyzed for frequencies up to 1 MHz.
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How this classification was reachedexpand
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) | 0.001 | 0.000 |
| Bibliometrics | 0.000 | 0.003 |
| 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) | 0.001 | 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 teacher head, 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".