The corrosion resistance of mild steel (used to make hull plates in ship technology) seawater before paint coating (Nippon paint, weatherbond advance) and after has been measured by electrochemical studies such as Polarisation study AC impedance spectra. It is observed that coating, the increases. Polarization reveals linear polarization increases current decreases. spectra reveal presence char...

Statement of problem. The effect of gold electroforming on gold alloy was not studied. Purpose. This in vitro study investigate the effect of gold electroforming on gold-silver-palladium alloy. Material and methods. Three pieces of gold strips had undergone the electroforming procedures on one side and then half of the side again electroformed. The set mode for this study was program 1 (200 μm)...

In this paper, hydroxyapatite-carbon nanotube/titania (HA-CNT/TiO(2)) double layer coatings were successfully developed on titanium (Ti) substrates intended for biomedical applications. A TiO(2) coating was firstly developed by anodization to improve bonding between HA and Ti, and then the layer of HA and CNTs was coated on the surface by the sol-gel process to improve the biocompatibility and ...

Double direct-seeding for double rice cropping is a simplified, labor saving, and efficient cropping system to improve multiple-crop index and total rice production in central China. However, poor crop establishment of direct-seeded early rice due to chilling stress is the main obstacle to wide spread of this system. A series of experiments were conducted to unravel the effects of pre-sowing se...

For preserving food packed in environmentally friendly and recyclable paperboard packages, it is important to have sufficient gas barrier performance of the container. Paperboard has poor intrinsic properties overcome this deficiency, so a coating needed that does not hinder recycling substrate. However, recyclability such coatings been rarely studied. Here, both removal an alkali-soluble resin...

In–situ cleaning of the substrate surface by ion etching is an integral part all physical vapor deposition (PVD) processes. However, in industrial systems, some side effects occur during process that can cause re-contamination. For example, a magnetron sputtering system with several sputter sources and holder located centered between them, causes contamination unshielded target surfaces batchin...

Dextran-coated superparamagnetic nanoparticles (MNPs) have widespread biomedical applications. The superparamagnetic behavior, specifically regulated size, and smooth morphology are crucial requirements for essentially all of these applications. Presented herein is an innovative double-coating strategy that would allow for a size-controlled synthesis of MNPs. Small monocrystalline iron oxide na...

The double-bulb rubidium maser (DBRM) relies on a vacuum cell for its operation. This differs from the spin-exchange noble gas cells which contain Xe, He and N2 as well as rubidium. These gases (in addition to playing active roles in the noble gas experiments) act as a buffer, keeping the Rb away from the walls of the cell. In the DBRM the lack of buffer gases allows rubidium atoms to effuse be...

Waste water treatment reservoirs are contaminated with many hazardous chemicals and acids. Reservoirs typically comprise concrete and reinforcement steel bars, and the main elements responsible for their deterioration are hazardous chemicals, acids, and ozone. Currently, a variety of techniques are being used to protect reservoirs from exposure to these elements. The most widely used techniques...