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Record W2763479145

Risk-based integrity assessment and failure probabilities of a residential single wall steel aboveground fuel oil storage tanks

2012· article· en· W2763479145 on OpenAlex
Moazzam Nazir, FI Khan, S Mangalam, R Sumabat

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.

aboutThe title or abstract carries a Canadian signal from the geographic lexicon.
no affNo Canadian affiliation: this work is invisible to an affiliation-only frame.
No Canadian affiliation. An affiliation-only frame, the usual design, would never have seen this work. It is one of the works that make the case for inverting the frame.

Bibliographic record

VenueeCite Digital Repository (University of Tasmania) · 2012
Typearticle
Languageen
FieldEngineering
TopicStructural Integrity and Reliability Analysis
Canadian institutionsnot available
Fundersnot available
KeywordsCorrosionReliability engineeringFailure rateProbabilistic logicService lifeWork (physics)EngineeringStorage tankProcess (computing)Forensic engineeringFailure assessmentEnvironmental scienceComputer scienceWaste managementStructural engineeringMechanical engineeringMaterials science
DOInot available

Abstract

fetched live from OpenAlex

Integrity assessment of residential engineering equipments such as fuel oil storage tanks is not done during its service life. In the absence of the incremental deterioration data over the service life, the deterioration rates can only be characterized using failure data. This is quite opposite to the process industry practice of inservice inspections and integrity assessment. In process facility inspections are done to assess the on going deterioration processes and to ensure safe operations during the service life of equipments. Limited work is reported on the estimation of the corrosion rates based on the component failure durations as compared to the work based on in-life inspection data. The current work develops a methodology that can establish corrosion rate estimates based on the failure data (data collected at the realization of the failure). A Bayesian approach to model the corrosion rate for a residential single wall aboveground fuel oil storage tank, is proposed here. The corrosion failure data utilized in this study are obtained from the database of Technical Standard and Safety Authority, Ontario. The posterior density function is used to quantify epistemic uncertainty in the corrosion rate parameter. A probabilistic model is, then, employed to account for the overall uncertainty associated with the corrosion rate variable. The corrosion rate estimate is utilized as an input to a stochastic deterioration process to assess the failure probabilities of the equipment.

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: Observational · Consensus signal: Observational
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.089
Threshold uncertainty score0.905

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 communication0.0000.001
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 head0.010
GPT teacher head0.191
Teacher spread0.181 · 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