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Record W1542357805

Bio-Composite Development for Acoustic Barriers

2011· article· en· W1542357805 on OpenAlexaboutno aff
B. S. Panigrahy, D.S.D. Stilling

Bibliographic record

VenueoURspace (University of Regina) · 2011
Typearticle
Languageen
FieldEngineering
TopicInnovations in Concrete and Construction Materials
Canadian institutionsnot available
Fundersnot available
KeywordsComposite numberAcousticsComputer sciencePhysics
DOInot available

Abstract

fetched live from OpenAlex

An innovative biocomposite material utilizing reclaimed material and Saskatchewan crop residue is under development. This material is intended to not only minimize the societal, environmental footprint by using sustainable or reclaimed material, but also provide good acoustic and vibration damping and possess semi-structural, construction strength. This value-added product is to be designed into an acoustic barrier in construction areas or along traffic corridors. By varying the combination of natural fibres, such as flax or hemp fibres, with reclaimed polymers, such as polypropylene and rubber, a resilient material with ultimate strengths ranging from 3 to 5 MPa with the capacity to attenuate acoustic noise by 20 dB have been manufactured and evaluated by University of Regina researchers. These properties of good acoustic and vibration damping capacity and high strength essentially are inversely related with increased fiber content. Basically, an increase in fiber content tends to increase the damping capacity yet decrease the strength. Generally, a compromise between these competing properties of strength and damping can be achieved with 30 to 50% fiber concentration of the biocomposite. To improve the structural strength, the manufacturing processes of compression moulding and extrusion combined with compression moulding have been compared with the latter providing improved strength characteristics. Also, fiber processing prior to manufacturing affects strength, density, water absorptive and acoustic absorptive. Fundamental engineering design can be applied to further improved structural integrity and enhance the acoustic damping properties of the material to create a functional acoustic barrier along a traffic corridor.

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 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: Not applicable · Consensus signal: Not applicable
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.329
Threshold uncertainty score0.368

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 head0.014
GPT teacher head0.182
Teacher spread0.168 · 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

Classification

machine, unvalidated

Machine predicted; a candidate call from one teacher head, not a consensus.

The models applied no category: nothing in the taxonomy fit this work.
Study designNot applicable
Domainnot available
GenreEmpirical

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".

Quick stats

Citations0
Published2011
Admission routes1
Has abstractyes

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