English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

An apparatus for the measurement of particle velocity and the diameter of a spherical particle (smaller than 10 mm) using acoustic emission due to the impact of the particle on a circular plate is developed. Based on the dropping experiments of nylon, high carbon chromium bearing steel (SUJ) and glass particles, the initial peak height (P1) and the peak frequency (fp) of the impact sound are related to the impact velocity (v), particle diameter (D), Young's modulus (Ep), Poisson's ratio (μp) and particle density (ρp). The P1 and fp are empirically expressed by Eqs.(6) and (15) respectively. If the properties of spherical particle are known, it is possible to estimate D and v from these equations by measuring P1and fp of the acoustic signal due to the impact of a particle. If a mass of spherical particle is known, it is also possible to estimate Ep and μp from these equations by measuring D and v using the apparatus.

Particle Identification by the Measurement of Acoustic Emission Due to the Impact of a Particle on a Circular Plate.