The equilibrium partition coefficient (K) and diffusion coefficient (Dgel) of two proteins and two linear polymers were measured as a function of polymer content of a 2.7% cross-linked polyacrylamide (PA) gel. The gel concentration, expressed as a volume percentage of PA in the gel (phi), varied between 0 and 14%. The measurements were made by fluorescence spectroscopy; fluorescent dyes were co...

BACKGROUND Few studies compare mood in tobacco cessation patients with mood in continuing smokers and then estimate the effects of a tobacco cessation program according to status of mood. We investigated whether mood in patients (n = 7) dependent on tobacco improved through the standard Japanese 12-week program for smoking cessation comparing smokers (n = 11) and nonsmokers (n = 16). METHODS ...

In this paper, we study the existence of global attractor a class three-dimensional Brinkman-Forchheimer equation in some unbounded domains which satisfies Poincaré inequality. We use tail estimation method to establish asymptotic compactness solution operator and then prove [see formula PDF].

Effect of temperature-dependent viscosity on fully developed forced convection in a duct of rectangular cross-section occupied by a fluid-saturated porous medium is investigated analytically. The Darcy flow model is applied and the viscosity-temperature relation is assumed to be an inverse-linear one. The case of uniform heat flux on the walls, i.e. the H boundary condition in the terminology o...

Brown, D. R. N., T. J. Brinkman, G. P. Neufeld, L. S. Navarro, C. H. Cold, B. Woods, and Ervin. 2022. Geospatial patterns models of subsistence land use in rural Interior Alaska. Ecology Society 27(2):23. https://doi.org/10.5751/ES-13256-270223

This paper investigates the nonlinear dispersion of a pollutant in non-isothermal incompressible flow temperature-dependent viscosity fluid rectangular channel filled with porous materials. The Brinkman-Forch-heimer effects are incorporated and is assumed to be variably permeable through channel. External injection, heat sources radiative flux Rossland approximation accounted for. system partia...

Mixed convection in an obstructed cavity with heated horizontal walls is investigated in this work. Brinkman-Forchheimer-extended Darcy model is utilized to describe the flow characteristics within a porous medium for different angles of attack with respect to the forced convection. Numerical results are obtained for a wide range of Grashof numbers (10–10), Reynolds numbers (10–10), Darcy numbe...

The ever-increasing involvement of computer technology in work and living environments—for training and actual task performances—sets continuously new challenges for cognitive ergonomics in diverse domains like transport, crisis management and healthcare [1]. A major challenge is to harmonize the technology development to the dynamics and complexity of the social, cognitive and affective proces...