نتایج جستجو برای: permeability coefficient

تعداد نتایج: 217403  

2016
Jehangir Cama Michael Schaich Kareem Al Nahas Silvia Hernández-Ainsa Stefano Pagliara Ulrich F. Keyser

Quantifying drug permeability across lipid membranes is crucial for drug development. In addition, reduced membrane permeability is a leading cause of antibiotic resistance in bacteria, and hence there is a need for new technologies that can quantify antibiotic transport across biological membranes. We recently developed an optofluidic assay that directly determines the permeability coefficient...

2008
Musa Alhassan

A-7-6 lateritic soil was treated at British Standard Light (BSL) compaction energy with up to 8% lime content (by dry weight of the soil) at 2% variations and each was admixed with up to 8% rice husk ash (RHA) at 2% variations. Effects of the ash on the soil-lime mixtures were investigated with respect to unconfined compressive strength (UCS) and coefficient of permeability. The UCS of the spec...

2015
Vincent Casseau Guido De Croon Dario Izzo Camilla Pandolfi

Tragopogon pratensis is a small herbaceous plant that uses wind as the dispersal vector for its seeds. The seeds are attached to parachutes that increase the aerodynamic drag force and increase the total distance travelled. Our hypothesis is that evolution has carefully tuned the air permeability of the seeds to operate in the most convenient fluid dynamic regime. To achieve final permeability,...

Journal: :Journal of the Korean Society of Marine Engineering 2018

2003
AKIHIRO KusuMI

Oxygen transport in phosphatidylcholinecholesterol membranes has been studied by observing the collision of molecular oxygen with nitroxide radical spin labels placed at various distances from the membrane surface using long-pulse saturation recovery ESR techniques. The collision rate was estimated for tempocholine phosphatidic acid ester, 5-doxylstearic acid, and 16-doxylstearic acid from spin...

Journal: :International Association of Scientific Hydrology. Bulletin 1965

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