نتایج جستجو برای: ac conductivity
تعداد نتایج: 84354 فیلتر نتایج به سال:
Alternating current ~ac! and direct current ~dc! conductivities have been measured in polymer-nanotube composite thin films. This was carried out for a range of concentrations of multiwall nanotubes in two polymer hosts, poly~m-phenylenevinylene-co-2,5-dioctyloxyp-phenylenevinylene! ~PmPV! and polyvinylalcohol ~PVA!. In all cases the dc conductivity sDC was ohmic in the voltage range studied. I...
In this paper, the chromium doped spinel zinc ferrite nanoparticles were synthesized by using of glycine as a fuel with microwave combustion method. After preparing the samples with x = 0.0, 0.5, 1.0, 1.5, 2.0, the electromagnetic and electrical properties such as dielectric constant, ac conductivity, dielectric loss factor (and Curie temperature were investigated. According to the results, in...
In this Letter, we propose and experimentally demonstrate a simple method to provide additional information on the electro-mechanical properties of soils by electrical conductivity measurements. The AC electrical conductance of the soil is measured while it is exposed to a periodic vibration. The vibration-induced density fluctuation implies a corresponding conductivity fluctuation that can be ...
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