Sb2Te3 thin films of different thickness (23 350 nm) were prepared by thermal evaporation technique. The thickness dependence of the ac conductivity and dielectric properties of the Sb2Te3 films have been investigated in the frequency range 10 Hz100 kHz and within the temperature range 293373K. Both the dielectric constant ε1 and dielectric loss factor ε2 were found to depend on frequency, temp...

We present, here, a device for shielding the RF MRI coils to eliminate their undesired radiation, and to restore the natural resonant frequency f0 in the presence of a biological sample. It is presented for a planar surface RF MRI coil. Nonetheless, this approach is also valid for conformal coils as well. Introduction The influence of any biological sample on an RF MRI coil results in a shift o...

The influence of maleation on thermal and dynamic-mechanical properties of wood-PVC composites was investigated in this study. Experimental results indicated that maleation had a significant influence on most of the properties for wood-PVC composites. Storage modulus (E’), loss modulus (E”), and complex modulus (E*) of resultant wood-PVC composites were related to the retention levels and graft...

Here we present a comparison analysis on the single loop resonator (SLR) inspired triple-band monopole antennas. Two configurations with rectangular and circular shaped radiation patches are presented. Simultaneously, two feed techniques with coplanar waveguide and microstrip feeds are performed to drive the antennas. And the conventional planar monopole antennas without the SLRs are also analy...