This article presents the advantages and limitations of a recently developed Ultrasonic Guided Wave Leakage (UGWL) method in comparison to well-known Half-Cell Potential (HCP) their ability detect corrosion reinforced concrete (RC) bridge decks. research also establishes correlation between UGWL data chloride content RC slabs. Concrete slabs submerged 10% NaCl solution were monitored using both...

Polarographic technique has been used to evaluate the kinetic parameters and formation constants of Co (П) complexes with benzyl penicillin sodium salt at pH 6.0±0.10 and constant ionic strength (μ = 0.1), HCl in aqueous, aqueous-methanol and aqueous-ethanol mixtures at d.m.e. The effect of concentration and temperature on the half wave potential of the complexes has also been investigated. The...

In this study, a compact pattern reconfigurable antenna structure is proposed. The proposed half-wave square microstrip patch divided into two quarter-wave portions by conducting wall. This wall forces potential zero at the connection point; therefore, it separates independent portions. Pattern reconfiguration achieved separate feeding of Phase difference between excitations ports result in var...

In this paper, by using a quantum hydrodynamic plasma model which incorporates the important quantum statistical pressure and electron diffraction force, we present the corrected plasmon dispersion relation for graphene which includes a k quantum term arising from the collective electron density wave interference effects (which  is integer and constant and k is wave vector). The longitudinal ...

High levels of iron-nitrogen doped porous carbon materials are obtained from MOF-253 using a step-by-step post-synthetic modification strategy. MOF-253 possessing open 2,2'-bipyridine nitrogen sites not only serves as a precursor but also provides chelate bonding sites for Fe2+. Followed by further impregnation of 1,10-phenanthroline, high surface area porous carbon materials are obtained. For ...

Three-dimensional nitrogen-doped carbon (3D-NCN) has been synthesized via the ionothermal carbonization method using waste soybean dregs (SD) as the precursor. N₂ adsorption/desorption isotherms show that the as-prepared 3D-NCN formed a hierarchically porous structure with a specific BET surface area of 1093.4 m² g-1 and a total pore volume of 1.77 cm³ g-1. The TEM images clearly show that grap...

Two-dimensional Eliashberg equations have been solved by use of a mixed interaction with sand d-channels. It is discussed what kind of pairing symmetry of the superconducting state can be realized when the channel mixing parameters and the band-filling are varied. By changing the mixing parameters and varying the chemical potential μ between zeroand half-filling, the pairing symmetry is determi...

We show that quantum Zeno dynamics can be mimicked by the isolated evolution of an unobserved system in an effective potential. Monitoring frequently whether a particle remains in a region of space leads to the same wave-packet dynamics as placing the region on top of a potential barrier and letting the particle evolve on its own, without external couplings. We focus on very frequent but not co...