[en] The radiation γ-influence at 0-500 kGy doses on dielectric parameters (ε and t gδ) and composite electric conduction (ζ) on the base of high-density polyethylene and iron oxide (α Fe_2O_3) radiated in air at room temperature is studied with the aim of modification of new class composite properties polymer -metal oxide.It is shown that ε=f(D) and tgδ=f(D) dependences have extreme character at(10 and 20 %) α-Fe_2O_3 high concentrations.ζ =f(D) dependence of investigated samples also has extreme character (besides composite high-density polyethylene +20% α-Fe_2O_3) and it is explained by accumulation of stabilized charge carriers in them

[en] Full Text: The representing electromechanical resonator on elastic vibrations of monocrystals strings from semiconductor materials rather simple in manufacturing of string in tenzoconverter on the basis of monocrystals is described. The examples of such class using in concrete designs of devices for measurement of various physical parameters are reported

[en] The main technical characteristics of digital communication systems of cellular bond are analyzed in this paper.The peculiarities of the electromagnetic fields near the antenna of digital communication systems of cellular bond with frequency, time and code interleaving of subscriber channels.It is shown that it is necessary to pay attention to relative broadbandness of digital signal spectrum on antenna radiation characteristics at carrying out of works on electromagnetic monitoring

[en] Full Text: The influence of γ-radiation on relaxing properties of TIInS₂< V> compound has been studied. It has been established that the Fogel-Fulcher temperature T_∫ shifts to the side of low temperatures in this compound, and Bernce temperature T_d shifts to the side of high temperatures. In the result, the temperature interval of existence of relaxing state becomes wider on ∼ 40K

[en] Full Text: The termophysical properties of fibroins of natural polymer are investigated. It is established, that at injecting of antioxidants N-(3,5-ditret-buty-4-hydroxyfenil) salicylaldimin into the structure of fibroins, by additional fertilizing of caterpillars by last-named amorphous sites increase and thus the stability of silk to external influences raises, i.e. the stabilization occurs due to sewing action of antioxidant

[en] Thin silve films were deposited by pulsed laser ablation in a controlled Ar atmosphere and their SERS activity was investigated. The samples were grown at Ar pressures between 10 and 70 Pa and at different laser pulse number. Other deposition parameters such as laser fluence, target to substrate distance and substrate temperature were kept fixed at 2.0 J/sm², 35 mm and 297 K. Film morphologies were investigated by scanning and transmission of electron microscopies. Cluster growth is favored by plume confinement induced by background gas. After landing on the substrate clusters it starts to aggregate giving rise to larger structures as long as the deposition goes on. The dependence of the film SERS activity on their surface morphology is discussed

[en] Full Text: In the given paper the influence of electron radiation on electrophysical and optical properties of Pb₁-xMn_xTe (x=0,04) epitaxial films obtained by condensation method of molecular beams on BaF₂ substrates. It is established, that the samples become more photo-sensitive after radiation

[en] Full Text: The investigations of the electromechanical characteristics of the thread-like crystals Ge₁-x Si_x subjected to electron and γ irradiation (CO⁶0) showed their increased radiation stability as compared with the other devices. The results obtained allow to draw conclusion on perspectivity of application of the transformers based on thread-like monocrystals Ge₁-x Si_x for the practical realization of the measurement process in different fields of engineering

[en] Full Text: In the environs ferroelectric phase transition dielectric ε(T), polarization P_s and electric σ(T) behavior intercalated silver of crystals TIInS₂ was established. It is established that in these crystals in depence of ε(T) and σ(T) become isotropic, appears P_s by measurement in the direction of axes. Submitted a proposition that, responsible for observable features are covalent bridges, emergent between layers and intercalated atoms of silver

[en] Full Text: The influence of thermal treatment and treatment by the liquid nitrogen of cocons, on electric properties of the natural silk fibroin has been studied. It has been established that the polarization (ε) and tangent of angle of dielectric losses (tangent δ) increase with the growth of amorphous sectors, that corresponds to the sample received from cocons, treated by the liquid nitrogen. Moreover the dielectric constant tangent of the loss angle and the electroconductivity of the fibroin, received from cocons treated by the liquid nitrogen are on 10% more in comparison with the fibroin received from cocons treated by the heated air and ultrahigh frequency (UHF) field