Zobrazeno 1 - 9
of 9
pro vyhledávání: '"D M, Leppinen"'
Publikováno v:
Ultrasonics. 81
Cavitation is a potentially effective and less damaging method of removing biofilm from biomaterial surfaces. The aim of this study is to characterise individual microbubbles around ultrasonic scaler tips using high speed imaging and image processing
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::00f0ef74eb2d6bec48efdbd39e6b7077
https://pubmed.ncbi.nlm.nih.gov/28595164
https://pubmed.ncbi.nlm.nih.gov/28595164
Autor:
Stuart B. Dalziel, D. M. Leppinen
Publikováno v:
Journal of Water Supply: Research and Technology-Aqua. 53:531-543
This papers presents the results of two studies performed to measure the size distribution of bubbles at different locations in dissolved air flotation tanks. Measurements were performed at the Albert Water Treatment Works and in two separate tanks a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ff5e8d6860fc508d4b23325b21356741
https://doi.org/10.2166/aqua.2004.0042
https://doi.org/10.2166/aqua.2004.0042
Publikováno v:
Journal of Porous Media. 7:289-302
In this paper we use asymptotic analysis to examine free convection in a shallow annular cavity filled with a fluid-saturated porous medium. The sidewalls of the cavity are maintained at different temperatures and the upper and lower boundaries are i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b9c87c2c76925fce60023ef320cdc280
https://doi.org/10.1615/jpormedia.v7.i4.40
https://doi.org/10.1615/jpormedia.v7.i4.40
Autor:
D. M. Leppinen
Publikováno v:
Numerical Heat Transfer, Part A: Applications. 44:625-644
The erosion of a salinity step due to heating from below by either distributed or localized heat sources is examined using two-dimensional numerical simulations. While the double diffusive convection which results from distributed heating is symmetri
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ff0fdab5ecb59551b4a01677943911dd
https://doi.org/10.1080/716100516
https://doi.org/10.1080/716100516
Publikováno v:
Water Science and Technology. 43:159-166
The purpose of this paper is to examine how the efficiency of dissolved air flotation is affected by the size of bubbles and particles. The rise speed of bubble/particle agglomerates is modelled as a function of bubble and particle size, while the ki
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e84f544db74804d0dd0cdec356fa8ecb
https://doi.org/10.2166/wst.2001.0490
https://doi.org/10.2166/wst.2001.0490
Autor:
Stuart B. Dalziel, D. M. Leppinen
Publikováno v:
Experiments in Fluids. 30:214-220
A non-intrusive technique to measure the two-dimensional distribution of line averaged void fraction in a two-phase flow is discussed. A CCD camera is used to measure the attenuation of light as it passes through a bubbly flow, and this attenuation i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8f935d688200f1a406dc56874e6f460e
https://doi.org/10.1007/s003480000158
https://doi.org/10.1007/s003480000158
Autor:
D. M. Leppinen
Publikováno v:
Journal of Water Supply: Research and Technology-Aqua. 49:259-268
This paper examines a mathematical model of the overall removal rate of particles during dissolved air flotation. It is shown that the particle capture efficiency for an isolated bubble–particle interaction can be calculated directly using a mathem
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::58c8d9ce6e90bef9187965c70de46abf
https://doi.org/10.2166/aqua.2000.0022
https://doi.org/10.2166/aqua.2000.0022
Autor:
D. A. S. Rees, D. M. Leppinen
Publikováno v:
Emerging Technologies and Techniques in Porous Media ISBN: 9781402018749
In this chapter we examine convection in a shallow rectangular porous cavity with the two sidewalls of the cavity maintained at different temperatures. This problem has been examined in a series of papers by Daniels, Simpkins and Blythe [1, 2, 3] and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9a6b1cd6e02a61fde18cf020507752ce
https://doi.org/10.1007/978-94-007-0971-3_11
https://doi.org/10.1007/978-94-007-0971-3_11
Publikováno v:
Water science and technology : a journal of the International Association on Water Pollution Research. 43(8)
The purpose of this paper is to examine how the efficiency of dissolved air flotation is affected by the size of bubbles and particles. The rise speed of bubble/particle agglomerates is modelled as a function of bubble and particle size, while the ki
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::1836d3967d50391d46cceced76c987c7
https://pubmed.ncbi.nlm.nih.gov/11394269
https://pubmed.ncbi.nlm.nih.gov/11394269