# Statistical Variability of Image-Derived Observables in Rotating-Drum Tests of a Cohesive Metal Powder: Dynamic Angle of Repose Versus Contour-Length Statistics

https://mdr.nims.go.jp/datasets/dd01df27-d2ce-47b8-933b-47a857757a34

## File

- [powders-05-00027.pdf](https://mdr.nims.go.jp/filesets/5a19d11f-339c-4eb0-89f7-cd8b36223028/download) ([Detail](https://mdr.nims.go.jp/filesets/5a19d11f-339c-4eb0-89f7-cd8b36223028.md))

## Id

dd01df27-d2ce-47b8-933b-47a857757a34

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2026-08-06T09:25:33.016287Z

## Updated at

2026-08-06T23:49:16.200340Z

## Published at

2026-08-07T01:28:53.481034Z

## Doi



## First published url

https://doi.org/10.3390/powders5030027

## Date published

2026-07-21

## Recorded date published



## Resource type

journal_article

## Manuscript type

vor

## Collection



## Title

- title: 'Statistical Variability of Image-Derived Observables in Rotating-Drum Tests
    of a Cohesive Metal Powder: Dynamic Angle of Repose Versus Contour-Length Statistics'
  title_type: original
  lang: en

## Description

- description: "Rotating-drum tests are widely employed for the characterization of
    powder flowability\r\nthrough image-derived free-surface observables. However,
    the statistical stability of the\r\nselected observable is rarely examined, although
    it directly determines the number of\r\nimages required for reliable evaluation.
    In the present study, two observables obtained\r\nfrom rotating-drum tests of
    a cohesive metal powder are compared: the dynamic angle of\r\nrepose (AoR) and
    a contour-length-based index, R, derived from the extracted free-surface\r\ncontour."
  description_type: abstract
  lang: und

## Creator

- name: Jun Katagiri
  role: author
  orcid: https://orcid.org/0000-0002-6399-1951
- name: Masahiro Kusano
  role: author
  orcid: https://orcid.org/0000-0002-5061-0195
- name: Makoto Watanabe
  role: author
  orcid: https://orcid.org/0000-0002-5064-9583

## Contact agent



## Publisher

organization: MDPI AG

## Managing organization



## Keyword

- subject: rotating drum
  schema: not_defined
- subject: cohesive powder
  schema: not_defined
- subject: dynamic angle of repose
  schema: not_defined
- subject: image-derived observable
  schema: not_defined
- subject: statistical variability
  schema: not_defined

## Rights

- identifier: https://creativecommons.org/licenses/by/4.0/

## Other identifier(s)



## Data origin

- data_origin_type: other

## Embargo



## Journal

- title: Powders
  issn: '26740516'
  volume: '5'
  issue: '3'
  article_number: '27'

## Conference



## Related item



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## Instrument



## Instrument operator



## Instrument managing organization



## Measurement method



## Specimen



## Chemical composition



## Structure for specimen



## Structural feature for specimen



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## Energy level/transition state



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## Custom property



## Fileset

- id: 5a19d11f-339c-4eb0-89f7-cd8b36223028
  filename: powders-05-00027.pdf
  content_type: application/pdf
  size: 2741956
  md5: 4389bad9db9d1c20f99bb5ddddc245b6

## Thumbnail

fileset_id: 5a19d11f-339c-4eb0-89f7-cd8b36223028
filename: powders-05-00027.pdf