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Record W3009709725 · doi:10.1109/jsen.2020.2978086

Monitoring pH Level Using High-Resolution Microwave Sensor for Mitigation of Stress Corrosion Cracking in Steel Pipelines

2020· article· en· W3009709725 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.
fundA Canadian funder is recorded on the work.

Bibliographic record

VenueIEEE Sensors Journal · 2020
Typearticle
Languageen
FieldEngineering
TopicUltrasonics and Acoustic Wave Propagation
Canadian institutionsUniversity of Alberta
FundersNatural Sciences and Engineering Research Council of CanadaCMC Microsystems
KeywordsMaterials scienceCorrosionStress corrosion crackingCrackingMicrowaveCoatingStress (linguistics)PermittivityCorrosion monitoringComposite materialDielectricOptoelectronics

Abstract

fetched live from OpenAlex

Here, the feasibility of using a non-contact high-resolution microwave sensor for the detection and mitigation of High pH Stress Corrosion Cracking (HpHSCC) through monitoring the pH range beneath the dsibonded coating in buried pipeline steel has been investigated. A modelling method and microwave dielectric sensing for aqueous solution has been studied in order to relate relative permittivity and loss to the pH level using the concentration as a bridge. The experimental results showed the potential of the high quality-factor sensor for monitoring the pH level variation. The resonant frequency of the microwave sensor was the main variable considered in the characterization of the sensor's response to pH level changes or concentration variations in the defect beneath the pipe coating. Additionally, the extracted experimental results for near-neutral and acidic pH environment detection demonstrated the significance of non-contact sensing performance and the sensor's potential to detect and study the pH variation. The results demonstrate significantly distinct frequency shift of 174 kHz as the pH increases from 7 to 11 which is the range of the pH created in HpHSCC. This method, as an example, could be employed in the third stage of Stress Corrosion Cracking Direct Assessment (SSCDA), Direct examination step, to determine whether breeding ground for HpHSCC is created or not.

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: Bench or experimental · Consensus signal: Bench or experimental
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.256
Threshold uncertainty score0.652

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 head0.045
GPT teacher head0.256
Teacher spread0.212 · 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