Zobrazeno 1 - 10
of 13
pro vyhledávání: '"H. Choueiri"'
Publikováno v:
BMC Psychiatry, Vol 24, Iss 1, Pp 1-13 (2024)
Abstract Background Tackling poor mental health in university students has been identified as a priority in higher education. However, there are few evidence-based prevention initiatives designed for students. Repetitive Negative Thought (RNT, e.g. w
Externí odkaz:
https://doaj.org/article/237d7f881c90486db566a70e436e634e
Akademický článek
Tento výsledek nelze pro nepřihlášené uživatele zobrazit.
K zobrazení výsledku je třeba se přihlásit.
K zobrazení výsledku je třeba se přihlásit.
Publikováno v:
Journal of Fluid Mechanics. 874:699-719
Polymer additives can substantially reduce the drag of turbulent flows and the upper limit, the so-called state of ‘maximum drag reduction’ (MDR), is to a good approximation independent of the type of polymer and solvent used. Until recently, the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::404123bf36ca2fd0d7e0c7126ba937aa
https://doi.org/10.1017/jfm.2019.486
https://doi.org/10.1017/jfm.2019.486
Publikováno v:
Proc Natl Acad Sci U S A
UPCommons. Portal del coneixement obert de la UPC
Universitat Politècnica de Catalunya (UPC)
UPCommons. Portal del coneixement obert de la UPC
Universitat Politècnica de Catalunya (UPC)
Turbulence generally arises in shear flows if velocities and hence, inertial forces are sufficiently large. In striking contrast, viscoelastic fluids can exhibit disordered motion even at vanishing inertia. Intermediate between these cases, a state o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f4e0b541f7b29b787b741938a39f4913
Publikováno v:
Physical review letters. 122(11)
Suspended particles can alter the properties of fluids and in particular also affect the transition from laminar to turbulent flow. In the present experimental study, we investigate the impact of neutrally buoyant, spherical inertial particles on tra
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::27e6984ade46b1b36c33c2ec6b805a55
https://pubmed.ncbi.nlm.nih.gov/30951357
https://pubmed.ncbi.nlm.nih.gov/30951357
Publikováno v:
UPCommons. Portal del coneixement obert de la UPC
Universitat Politècnica de Catalunya (UPC)
Universitat Politècnica de Catalunya (UPC)
The drag of turbulent flows can be drastically decreased by addition of small amounts of high molecular weight polymers. While drag reduction initially increases with polymer concentration, it eventually saturates to what is known as the maximum drag
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2e38caf944be209679b595a45be6be72
https://doi.org/10.1103/physrevlett.120.124501
https://doi.org/10.1103/physrevlett.120.124501
Autor:
Stavros Tavoularis, George H. Choueiri
Publikováno v:
Journal of Fluid Mechanics. 768:294-315
The development and structure of flows in eccentric annular channels and their dependence on inlet conditions, inner-to-outer diameter ratio $d/D$, eccentricity $e=2{\rm\Delta}y/(D-d)$, where ${\rm\Delta}y$ is the distance between the axes of the inn
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9fa3cf72c7606ce0d52f6586927fdc02
https://doi.org/10.1017/jfm.2015.90
https://doi.org/10.1017/jfm.2015.90
Autor:
George H. Choueiri, Stavros Tavoularis
Publikováno v:
Journal of Fluid Mechanics. 752:521-542
Flow visualization, laser Doppler velocimetry and planar and stereoscopic particle image velocimetry were used to investigate the isothermal velocity field along an eccentric annular channel with a diameter ratio of 0.5 and an eccentricity of 0.8 for
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0dd9500a1d976c56eec9cc34dee264e2
https://doi.org/10.1017/jfm.2014.343
https://doi.org/10.1017/jfm.2014.343
Publikováno v:
Journal of Heat Transfer. 135
The effect of eccentricity on heat transfer in upward flow in a vertical, open-ended, annular channel with a diameter ratio of 0.61, an aspect ratio of 18:1, and both internal surfaces heated uniformly has been investigated experimentally. Results ha
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cef679e2750808cf1a518372ee8f0513
https://doi.org/10.1115/1.4023748
https://doi.org/10.1115/1.4023748
Autor:
George H. Choueiri, Stavros Tavoularis
Publikováno v:
Journal of Heat Transfer. 133
The effects of eccentricity on the natural convection heat transfer from a vertical open-ended cylindrical annulus with diameter ratio of 1.63 and aspect ratio of 18:1 have been investigated experimentally. Within the range of present conditions, and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::33c86d5f0cd77143b11fa53e67d72b8d
https://doi.org/10.1115/1.4004428
https://doi.org/10.1115/1.4004428