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Record W7054756661

Assessment of Acoustic Properties of Mycelium-Based Composites Materials

2023· article· en· W7054756661 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.
venuePublished in a venue whose home country is Canada.

Bibliographic record

VenueCanadian acoustics · 2023
Typearticle
Languageen
FieldEngineering
TopicLaser Design and Applications
Canadian institutionsUniversité de Sherbrooke
Fundersnot available
KeywordsNoise reduction coefficientEnvironmentally friendlyComposite numberMaterial propertiesNatural fiberCeiling (cloud)Acoustic impedance
DOInot available

Abstract

fetched live from OpenAlex

Mycelium-based composites are self-grown materials, based on agricultural residue fibers that are inoculated with fungi mycelium. The mycelium forms an interwoven 3-dimensional filamentous network, binding every fiber particle together to create a rigid, lightweight composite material without utilizing energy input or producing extra waste. Today, the increasing concern for the environmental impact of plastic or petroleum-based materials has led to a growing interest in biomaterials. Mycelium-based composites could replace current products in the packaging industry, as well as in construction (e.g., materials for thermal and acoustic insulation). Many physical properties can be tuned by controlling the fungal species, the growth conditions and the post-growth processes. In order to evaluate the sound absorption properties of mycelium-based composites made from residual hemp fiber and Ganoderma lucidum fungi, sound absorption tests were conducted in a small reverberant chamber and in an impedance tube. The results obtained are comparable to those obtained with conventional ceiling tiles on the 250 - 5000 Hz spectrum frequency band. The findings emphasize the importance of exploring bio-based materials for environmentally friendly solutions, contributing to the growing body of knowledge in sustainable acoustic engineering.

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 score0.300
Threshold uncertainty score0.337

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 head0.020
GPT teacher head0.221
Teacher spread0.201 · 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