(Ga0.4In0.6)2Se3 thin films were deposited by thermal evaporation technique. Refractive index and extinction coefficient dispersions were obtained from the spectral ellipsometry measurements. The dispersion of refractive index is described in the framework of Wemple-DiDomenico model. The energy pseudogap and Urbach energy were determined from the optical absorption spectrum of (Ga0.4In0.6)2Se3 thin film. Optical parameters of (Ga0.4In0.6)2Se3 thin film and single crystal were compared.
The method of resolving power enhancement of analog-digital conversion path of jitter analyzers in fiber-optical networks is suggested in the research. The analog-digital path is designed on the basis of the principle of phase-plane correction of dynamic errors and is characterized by high resolving power.
Transformations of geometric objects are described for offsetting. This paper presents the real-time synthesis of highquality images – a method of defining free forms without approximating them with polygons or patches, issues of using perturbation functions for real-time animation of the surfaces of three-dimensional objects. The method for visualizing functionally defined objects adapted for graphics processing units is proposed, as well as methods of transforming the describing function are implemented for geometric operations, such as deformation, displacement, morphology operation, also for nonhomeomorphic objects.
The article presents the determination of limitations of automated speaker recognition systems for critical use. The system, unlike the existing speaker recognition systems, allows predicting the authenticity of the recognition results. It was obtained due to the recognition of matrices with values estimates of interclass relations and interclass distances in the space of classes of speakers, which had fallen to the formulated universal criteria of authenticity evaluation of speaker recognition. The obtained theoretical results were embodied in a modification of the input layer of the threelayered perceptron, which finalizes speaker recognition process by convolution deep neural network.
New approaches to ultrasonic measurements based on the use of the ultrasonic near-field zone and the resonance method are considered. the approaches can be used to measure such material parameters as density, thickness and humidity. simulation and obtained experimental results are given. a mathematical model of the ultrasonic resonance method for measuring material parameters is presented. shown simulation results and experimental data exhibit the high convergence which indicates the adequacy of the proposed model and allows offering a new class of ultrasonic methods for measuring control. a new approach to ultrasonic measurements based on the creation of ultrasonic wave selfoscillation conditions is proposed.