We report the preparation of (111) preferentially oriented CoFe2O4 thin films on Pt(111)/TiO2/SiO2/Si substrates using a spin-coating process. The post-annealing conditions and film thickness were varied for cobalt ferrite (CFO) thin films, and Pt/CFO/Pt structures were prepared to investigate the resistance switching behaviors. Our results showed that resistance switching without a forming pro...

Oriented silicon steel is vital for power transformer cores, while the high-temperature annealing process limits industrialization of environmentally friendly coatings on surface. In this paper, binders Al(H2PO4)3 solution and silica sol were introduced innovatively. They condensed into macromolecular polymer chains, network structures SiO2 particles at high temperatures, providing stability ad...

Within the framework of self--consistent--charge density functional tight-binding method, we study features atomic structure and electrical conductive properties a hybrid graphene-nanotube film with an island topology under uniaxial stretching compression. The is composite formed by AB-stacked bilayer graphene horizontally oriented chiral single-walled carbon nanotubes 1.2 nm in diameter. regul...

Corrosion of 1020 carbon steel coupons in natural seawater over a 1-year period was more aggressive under strictly anaerobic stagnant conditions than under aerobic stagnant conditions as measured by weight loss and instantaneous corrosion rate (polarization resistance). Under oxygenated conditions, a two-tiered oxide layer of lepidocrocite/goethite formed. The inner layer was extremely tenaciou...

How do integral membrane proteins evolve in size and complexity? Using the small multidrug-resistance protein EmrE from Escherichia coli as a model, we experimentally demonstrated that the evolution of membrane proteins composed of two homologous but oppositely oriented domains can occur in a small number of steps: An original dual-topology protein evolves, through a gene-duplication event, to ...

In this paper a simulation model for speed control of Induction Motor with rotor resistance adaptation based on Sensorless field oriented method using PID controller has been developed. A developed model is capable of speed control of motor without sensor. Obtained simulation results are comparable with the nature of high performance motor drive system. Results obtained using developed model wi...