Results 21 to 30 of about 1,940,325 (292)

Modelling water vapor permeability through atomic layer deposition coated photovoltaic barrier defects [PDF]

open access: yes, 2014
Transparent barrier films such as Al2O3 used for prevention of oxygen and/or water vapour permeation are the subject of increasing research interest when used for the encapsulation of flexible photovoltaic modules.
Robbins, David   +5 more
core   +1 more source

Patterning with Diffusion Barriers [PDF]

open access: yesDevelopmental Cell, 2015
Notch signaling instructs equivalent cells to form precise differentiation patterns. In this issue of Developmental Cell, Cinquin et al. (2015) characterize diffusion barriers that enhance Notch patterning within the Caenorhabditis elegans gonad.
openaire   +2 more sources

Structural Stability of Diffusion Barriers in Cu/Ru/MgO/Ta/Si

open access: yesNanomaterials, 2015
Various structures of Cu (50 nm)/Ru (2 nm)/MgO (0.5–3 nm)/Ta (2 nm)/Si were prepared by sputtering and electroplating techniques, in which the ultra-thin trilayer of Ru (2 nm)/MgO (0.5–3 nm)/Ta (2 nm) is used as the diffusion barrier against the ...
Shu-Huei Hsieh   +2 more
doaj   +1 more source

Brain extracellular space as a diffusion barrier [PDF]

open access: yesComputing and Visualization in Science, 2011
The extracellular space (ECS) consists of the narrow channels between brain cells together with their geometrical configuration and contents. Despite being only 20-60 nm in width, the ECS typically occupies 20% of the brain volume. Numerous experiments over the last 50 years have established that molecules moving through the ECS obey the laws of ...
Charles Nicholson   +2 more
openaire   +3 more sources

Material barriers to diffusive and stochastic transport [PDF]

open access: yesProceedings of the National Academy of Sciences, 2018
Significance Observations of tracer transport in fluids generally reveal highly complex patterns shaped by an intricate network of transport barriers and enhancers. The elements of this network appear to be universal for small diffusivities, independent of the tracer and its initial distribution. Here, we develop a mathematical theory
George Haller   +2 more
openaire   +5 more sources

Diffusion in Cauchy Elastic Solid [PDF]

open access: yes, 2022
It is commonly accepted that a starting point of the science of diffusion is the phenomenological diffusion equation postulated by German physiologist Adolf Fick inspired by experiments on diffusion by Thomas Graham and Robert Brown.
Danielewski, Marek, Sapa, Lucjan
core   +1 more source

Thermodynamic Prediction Of The Diffusion Barrier Morphology In The Al/Ni – Nano-Foil Designed For The Self-Propagating Reaction

open access: yesArchives of Metallurgy and Materials, 2015
Thermodynamic model for the diffusion barrier formation in the Al/Ni nano-foil is presented. Two types of diffusion are distinguished in the model, boundary diffusion for substrate dissolution and bulk diffusion for solidification.
Wołczyński W.
doaj   +1 more source

A barrier to diffusion [PDF]

open access: yesNature Reviews Neuroscience, 2006
Stimulation of excitatory neurons triggers the movement of calcium into dendritic spines and the build up of second messengers in the spine head, which, in turn, activates regulatory signalling cascades that underpin alterations in the strength of excitatory synapses.
openaire   +1 more source

Diffusion in Metals and Intermetallics: An Overview [PDF]

open access: yes, 2022
After a few remarks about the history of diffusion in solids we remind the reader to some basics of diffusion such as tracer diffusion, interdiffusion, high-diffusivity paths, and basic diffusion mechanism in solids.
Mehrer, Helmut
core   +1 more source

Solid-Electrolyte Amperometric Sensor for Simultaneous Measurement of CO and CO2 in Nitrogen

open access: yesApplied Sciences, 2022
A solid-state amperometric sensor based on yttria-stabilized zirconia (YSZ) for the simultaneous measurement of CO and CO2 concentrations in inert gases was fabricated.
Anatoly Kalyakin   +2 more
doaj   +1 more source

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