Diffusion of H through Pd membranes: Effects of non-ideality

Non-ideality in multicomponent diffusion of polyelectrolyte solutions

Diffusion of urea through membranes

Ulrike Günther, Marcus Hartmann, Siegfried Wartewig, Reinhard Neubert Martin-Luther-Universität Halle-Wittenberg, 1 Institute of Pharmaceutics and Biopharmaceutics, 2 Institute of Applied Dermatopharmacy, Wolfgang-Langenbeck-Str. 4, 06120 Halle (Saale), Germany, E-Mail: [email protected]

Theoretical Performance Evaluation of Inorganic (Non Pd-Based) Membranes for Hydrogen Separation

The aim of this work theoretical study is to theoretically investigate a inorganic membrane assisted purifcation process of an H2-rich stream derived from a conventional methanol steam reforming stage. In particular, a black-box model for multicomponent gas mixture purifcation is dev...

Oxygen diffusion through perovskite membranes

The oxygen permeation flux through the perovskite membrane made of Ba0.5Sr0.5Co0.8Fe0.2O3-δ (BSCF) has been measured as a function of both the temperature and the oxygen pressure gradient across the membrane. A simple model for the surface exchange fluxes was used to understand the mechanism of the oxygen transport. The limiting step of the oxygen transport was found to be the bulk diffusion fo...

the effects of high non fibrous carbohydrates diet on milk production, inflammation and molecular mechanism of innate immunity in lactating dairy cows

پژوهش حاضر با هدف بررسی اثر جیره حاوی کربوهیدراتهای غیرالیافی زیاد و بروز التهاب در گاوهای شیرده در دو آزمایش جداگانه انجام شد. در آزمایش اول 20 رأس گاو مبتلا به ورم پستان از دو گروه کم تولید و پرتولید (هر کدام 10 رأس) و 20 رأس گاو سالم از دو گروه کم تولید و پرتولید (هر کدام 10 رأس) انتخاب شدند. همه گاوها در دوره دوم و یا سوم شیردهی و در روزهای 80-120 پس از زایش بودند. میانگین تولید شیر در گروه...