Evidence map›Paper›PMID 34443047›Full record

ArticleMaterials (Basel, Switzerland)2021

Analysis of the Influence of Thickness and Density on Acoustic Absorption of Materials Made from Used Cigarette Butts.

Valentín Gómez Escobar, Celia Moreno González, Guillermo Rey Gozalo

Abstract read
In one paragraph

Article in Materials (Basel, Switzerland), 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

5 citing papers in PubMed.

  1. Article
  2. Article
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  4. Article
  5. Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

3 authors.

Valentín Gómez EscobarResearch Institute for Sustainable Territorial Development (INTERRA), Department of Applied Physics, Polytechnic School, University of Extremadura, 10003 Cáceres, Spain.ORCID 0000-0001-6969-1450
Celia Moreno GonzálezResearch Institute for Sustainable Territorial Development (INTERRA), Department of Applied Physics, Polytechnic School, University of Extremadura, 10003 Cáceres, Spain.ORCID 0000-0003-3023-4150
Guillermo Rey GozaloResearch Institute for Sustainable Territorial Development (INTERRA), Department of Applied Physics, Polytechnic School, University of Extremadura, 10003 Cáceres, Spain.ORCID 0000-0003-0192-0944

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The effects of the density and thickness of samples made from used cigarette butts on acoustic characteristics were analyzed in this study. All the analyzed samples showed high acoustic performance, indicating that the fabrication of acoustic absorbing material may be a good use for this problematic waste (due to its toxicity, continuous generation, lack of recycling method, etc.). An increase in either density or thickness shifted the absorption characteristics of the samples to lower frequencies and increased the overall absorption. The relationships of the frequency and value of the maximum absorption coefficient with thickness and/or density were analyzed. The shift of the maximum absorption coefficient value due to varying thickness is in good agreement with previous studies.

Indexed as

cigarette buttsrecyclingsound absorbersustainable material

Identifiers

PMID34443047
PMCPMC8400723

What OpenQuestion holds

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.