In this study the effect of crystallite size reduction and microstructure on the electrochemical corrosion behavior of nanocrystalline nickel (NC Ni) were investigated using Tafel polarization and electrochemical impedance spectroscopy (EIS) measurements in 10 wt.% NaOH. NC Ni coatings were produced by direct current electrodeposition using chloride baths in presence and absence of saccharin as...

In Hard Disk Drives (HDD), it is necessary to decrease the Flying Height (FH) between the head and the disk (currently, FH is around 3-5 nm) so as to increase recording densities. Retaining the solid lubricant has become a difficult proposition owing to intermittent contact between the surfaces. ZTMD and Z are used as solid lubricant to lubricate these interfaces. In this paper, the behavior of...

Benefiting from the high capacity of Zn metal anodes and intrinsic safety aqueous electrolytes, rechargeable ion batteries (ZIBs) show promising application in post-lithium-ion period, exhibiting good safety, low cost, energy density. However, its commercialization still faces problems with Coulombic efficiency unsatisfied cycling performance due to poor Zn/Zn2+ reversibility that occurred on a...

Choosing valuable objects is critical for survival, but their values may change flexibly or remain stable. Therefore, animals should be able to update the object values flexibly by recent experiences and retain them stably by long-term experiences. However, it is unclear how the brain encodes the two conflicting forms of values and controls behavior accordingly. We found that distinct circuits ...

One could observe drastically different dynamics of zero-sum and non-zero-sum games under replicator equations. In games, heteroclinic cycles naturally occur whenever the species population supersede each other in cyclic fashion (like for Rock-Paper-Scissors game). this case, highly erratic oscillations may cause divergence time averages. contrast, it is a common belief that most “reasonable” e...