Zobrazeno 1 - 10
of 49
pro vyhledávání: '"Ted Watson"'
Publikováno v:
Groundwater Monitoring & Remediation. 39:71-75
Organic contaminants present as nonaqueous phase liquids (NAPLs) in the subsurface often pose a long‐term risk to human health and the environment. Investigating the distribution of NAPLs in porous media remains a major challenge in risk assessment
Autor:
Alex Wong, Giada Sebastiani, Curtis Cooper, Réjean Thomas, Dan Smyth, Brian Conway, Gretty Deutsch, Hemant Shah, Ritesh N. Kumar, Ted Watson
Publikováno v:
Canadian liver journal. 4(4)
BACKGROUND: Development of robust treatment programs among core transmitters (CT) of hepatitis C virus (HCV) are needed, including strategies to address reinfection risk. The aim of this study was to describe the effectiveness of direct-acting antivi
Autor:
Jinsoo Uh, A. Ted Watson
Publikováno v:
Transport in Porous Media. 105:141-170
Nuclear magnetic resonance (NMR) and imaging (MRI) can provide unique information about fluid distributions, flow, transport properties, and morphology within permeable media. The mathematical description of NMR relaxation of fluids in permeable medi
Autor:
Jinsoo Uh, A. Ted Watson
Publikováno v:
International Journal of Life Science and Medical Research. 3:139-147
Hydraulic permeability of cancellous bone is an important property for modeling bone and fluid response to mechanical stimuli. It can play a role in design of bone substitutes and cementation procedures. However, this property is poorly understood. P
Autor:
A. Ted Watson, Jinsoo Uh
Publikováno v:
Transport in Porous Media. 86:385-414
Conventional laboratory experimentation provides an apparent value of hydraulic permeability which, at best, is representative of the entire sample. Nuclear magnetic resonance imaging (MRI) provides unique opportunities to probe spatial distributions
Autor:
A. Ted Watson, Jinsoo Uh
Publikováno v:
Industrial & Engineering Chemistry Research. 43:3026-3032
Nuclear magnetic resonance (NMR) experiments are used to characterize microscopic pore structures in permeable media. NMR relaxation distributions are determined from inversion−recovery experiments, and the surface relaxivity is used to scale relax
Autor:
A. Ted Watson, Kristofer Kolltveit, Jan-Erik Nordtvedt, Randi Valestrand, Jack Phan, Alv-Arne Grimstad
Publikováno v:
Inverse Problems in Engineering. 11:289-307
This article addresses estimation of porous media property functions, absolute and relative permeabilities, from experiments on core samples. Typically, the properties are taken to be homogeneous. However, recent studies have shown that such an assum
Autor:
A. Ted Watson, Einar Ebeltoft, André Sylte, Raghavendra Kulkarni, Jan-Erik Nordtvedt, Alv-Arne Grimstad
Publikováno v:
Inverse Problems in Engineering. 10:65-84
This paper presents and demonstrates a systematic approach to the selection of experimental designs leading to accurate estimates of relative permeability and capillary pressure functions for two-phase flow in porous media. The objective is to select
Publikováno v:
Inverse Problems in Engineering. 9:487-505
Nuclear magnetic resonance (NMR) is a powerful, noninvasive measurement method which can be used to obtain spatially resolved information about fluid distributions within media. In the present work, an approach for quantitatively analyzing magnetic r
Publikováno v:
Transport in Porous Media. 42:351-387
This study develops a methodology for determining the absolute permeability distribution in a porous media sample using velocity data obtained from NMR imaging experiments. An objective function describing the discrepancy between observed and simulat