Concentration Polarization and the Polarographic Current-Time Curve. II. The Spherical Diffusion Current

Overlimiting current through ion concentration polarization layer: hydrodynamic convection effects.

In this work, we experimentally investigated an effect of the hydrodynamic convective flow on ion transport through a nanoporous membrane in a micro/nanofluidic modeled system. The convective motion of ions in an ion concentration polarization (ICP) layer was controlled by external hydrodynamic inflows adjacent to the nanoporous membrane. The ion depletion region, which is regarded as a high el...

Real-time acoustic tomography system and the experience of Caspian current sea monitoring

The Acoustic Tomography (AT) systems are used to monitor long-term and continuous flow in rivers, seas and oceans. One of the disadvantages of existing systems in Iran is the inability of real-time/automated measurements. In this study, by adding a raspberry Pi computer to the system and performing the required programming, it was possible to do online monitoring. The data are transferred to th...

Effect of current density on the microstructure and polarization resistance of Ni-P-TiO2-ZrO2 composite coating

Composite coatings with nickel matrix and ceramic reinforcement particles have high ability to improve surface properties, such as good corrosion and abrasion resistance. In this study, Ni-P composite coating was coated with ZrO2 and TiO2 ceramic particles on the AISI 316 steel substrate through direct current plating method. The effect of the current densities of 20, 30, 40 and 50 mA/cm2 on th...

Chiral Drugs: Current Status of the Industry and the Market

Chiral Drugs: Current Status of the Industry and the Market