Zobrazeno 1 - 9
of 9
pro vyhledávání: '"Denis Semwogerere"'
Publikováno v:
Journal of Fluid Mechanics. 581:437-451
An experimental investigation into the influence of Brownian motion on shear-induced particle migration of monodisperse suspensions of micrometre-sized colloidal particles is presented. The suspension is pumped through a 50 μm × 500 μm rectangular
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7db4d96eca9e0e6cae8a6e49a418cdca
https://doi.org/10.1017/s0022112007006088
https://doi.org/10.1017/s0022112007006088
Autor:
Denis Semwogerere, John C. Crocker, Victor Breedveld, Jun Sato, Klebert Feitosa, J. Clara-Rahola, Theodore A. Brzinski, Eric R. Weeks
Publikováno v:
Physical review. E, Statistical, nonlinear, and soft matter physics. 91(1)
We study dense and highly polydisperse emulsions at droplet volume fractions $\ensuremath{\phi}\ensuremath{\ge}0.65$. We apply oscillatory shear and observe droplet motion using confocal microscopy. The presence of droplets with sizes several times t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9cbff16f971fa9e116bb23350976731e
https://pubmed.ncbi.nlm.nih.gov/25679553
https://pubmed.ncbi.nlm.nih.gov/25679553
Publikováno v:
Physical review. E, Statistical, nonlinear, and soft matter physics. 81(1 Pt 1)
The rheology of dense amorphous materials under large shear strain is not fully understood, partly due to the difficulty of directly viewing the microscopic details of such materials. We use a colloidal suspension to simulate amorphous materials, and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2731140de8cd82f0069726a7d812aaa1
https://pubmed.ncbi.nlm.nih.gov/20365369
https://pubmed.ncbi.nlm.nih.gov/20365369
Autor:
Denis Semwogerere, Eric Weeks
Publikováno v:
Encyclopedia of Biomaterials and Biomedical Engineering, Second Edition-Four Volume Set ISBN: 9781420078022
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c2778d8ab98322532c54722ecb314b87
https://doi.org/10.1201/b18990-68
https://doi.org/10.1201/b18990-68
Autor:
Michael F. Schatz, Denis Semwogerere
Publikováno v:
Physical review letters. 93(12)
We have identified experimentally secondary instability mechanisms that restrict the stable band of wave numbers for ideal hexagons in Benard-Marangoni convection. We use "thermal laser writing" to impose long wave perturbations of ideal hexagonal pa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6e04f6fb5baeaf80e89322eb35373956
https://pubmed.ncbi.nlm.nih.gov/15447268
https://pubmed.ncbi.nlm.nih.gov/15447268
Autor:
Michael F. Schatz, Denis Semwogerere
Publikováno v:
Physical Review Letters. 88
We report quantitative measurements of both wave number selection and defect motion in nonequilibrium hexagonal patterns. A novel optical technique ("thermal laser writing") is used to imprint initial patterns with selected characteristics in a Béna
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ae67b9d38bbc76bc010b2ffee316e8fe
https://doi.org/10.1103/physrevlett.88.054501
https://doi.org/10.1103/physrevlett.88.054501
Autor:
Denis Semwogerere, Eric R. Weeks
Publikováno v:
Physics of Fluids. 20:043306
We present experimental investigations of the spatial and temporal evolution of particle migration in pressure driven flows of Brownian particle suspensions. Binary suspensions of 1.4 and 3.0μm diameter colloidal particles are pumped through a 50×5
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8db98ad104f2ff5707fee87281863b39
https://doi.org/10.1063/1.2907378
https://doi.org/10.1063/1.2907378
Publikováno v:
Journal of Physics: Condensed Matter. 19:113102
Colloids have increasingly been used to characterize or mimic many aspects of atomic and molecular systems. With confocal microscopy these colloidal particles can be tracked spatially in three dimensions with great precision over large time scales. T
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9ccbae083f378c8bf020d92b86bdb5b8
https://doi.org/10.1088/0953-8984/19/11/113102
https://doi.org/10.1088/0953-8984/19/11/113102
Publikováno v:
Journal of Fluid Mechanics; Jun2007, Vol. 581 Issue 1, p437-451, 15p