Bibliographic record
Abstract
The network model approach given by E. L. Adler et al. (IEEE Trans. Ultrason. Ferroelec. Freq. Contr., vol.38, no.3, pp.220-230, May 1991) for analyzing arbitrarily oriented short-circuited surface acoustic wave (SAW) grating structures is extended to include interdigital transducers (IDTs) which are also arbitrarily oriented. The IDT structure is divided into cells, each modeled by a sequence of mismatched transmission lines consisting of metallized and unmetallized regions. The model includes: (1) the impedance difference between metallized and free regions, the reflection coefficient at the metallization upstep, the reflection coefficient in the reverse direction at the downstep (all deduced from the Datta-Hunsinger perturbation formula); (2) the velocity difference between the free and metallized regions obtained using the SAW propagation calculation software of Adler et al. for arbitrarily oriented multilayers; and (3) the energy storage susceptance at each finger discontinuity. This model permits good physical insight into the structure's characteristics and allows simple procedures for finding high directivity (so-called NSPUDT) orientations. This unit-cell-based arbitrarily oriented IDT model applies to any desired IDT geometry.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
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.
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) | 0.000 | 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)
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".