The algorithms with specializing and stabilizing coefficients to provide sustainable solutions to systems of equations related to poorly determined tasks of electrodynamics and nonlinear dynamics are described. It demonstrates the use of the modified algorithms in the task of E_{0 i} -waves propagation in irregular waveguide and dynamic model of Ressler's chaos. In the latter case it is demonstrated that ”deterministic” (i.e. reproducible) chaos is impossible .

The results of calculations and system analysis of the properties of semiconducting compounds attractive for the fabrication of novel nanoelectronic devices are presented. The classes of semiconducting compounds of A^IIB^IVC^V₂, A^I₂B^IVC^VI₃, A^IVB^VI and A^VIB^VI are considered, the most promising compounds are chosen on the base of the analysis of their properties and recommendations about possibility of their use in optoelectronics, photovoltaics and spintronics are made.

The precise matrix solution of the linearized Usadel equations for the multilayered Superconductor/Ferromagnet structures has given for arbitrary in-plane magnetization vectors of ferromagnet layers and an arbitrary layer number.

A method for segmentation of images based on the wave region growing is suggested. In contrast to known methods of segmentation the proposed method allows to divide the regions with smoothing drops of brightness and adapt to the constraints time of segmentation.

The mathematical model of the two-cascade orboklystron-amplifier with sheet beams is formulated. Calculations of amplitude characteristics of regenerative amplifiers on frequency of 180 GHz are resulted. Calculation electronic efficiency of two-cascade orboklystron-amplifiers with sheet beams on frequency of 180 GHz can reach values of 5 %, electronic power 16 W, gain 35 dB.

A way of SQL-injection vulnerability detection based on static code analysis is discussed. A web-application internal quality model based on the results of automated detection of SQL-injection vulnerabilities is given. Practical results of applying the quality model to real-world web-applications are presented.

The results of the theoretical and experimental studies of the process of producing a porous diamond tool with anisotropic pore structure for grinding and polishing works with flow in the treatment area coolant through the pores of the tool are given. On the basis of the conducted theoretical and experimental studies porous abrasive material, which allows to increase productivity when machining hard more than 65 % is developed.

The survey of protocols of estimation and performance tests of the biometrical systems, and general metrics of the investigation used in case of research of characteristics in biometry are provided. The primary factors of impact on performance criteria of biometrical systems are investigated.

The results of the development and experimental verification of the bandpass helical resonator filter in the VHF range, made in the original design concept with improved manufacturability are presented.

Single-phase nanosized Sr₂FeMoO_6-δ powders were synthesized by citrate-gel method at pH = 4, 6, 9, with various degrees of superstructural ordering of Fe³⁺ and Mo⁵⁺ cations ( P = 65 % for pH = 4, P = 51 % for pH = 6 and P = 20 % for pH = 9). According to the XPS analysis results, mixed valence state of cations iron and molybdenum was established. With increasing of pH, the Fe²⁺ concentration value rises from 63 % to 72 %, whereas the Fe⁺³ concentration drops from 37 % to 28 %. According to the results of investigations of magnetization temperature dependence performed in ZFC (zero-field cooling) and FC (field cooling) modes a metastable superparamagnetic state in low-dimensional grains of Sr₂FeMoO_6-d ferrimagnetic powders at T < 19 K was established. In powders with pH = 4 the number of low dimensional grains is significantly larger than powders with pH = 6 and 9. This has led to their large magnetization value at T = (4,2-19) K.

Providing effective security mechanisms is an important requirement to any secure cloud solution. In this sense, it's proposed to use a hybrid approach to cloud security that includes both warning and detection mechanisms in order to minimize the possibility of a successful attack. According to that proposal, the customized attribute-based encryption (ABE) is a comprehensive access control solution for cloud storage services including user accountability and key revocation. The authors apply state-of-the-art signal processing techniques in order to detect the malicious activities and Man-in-the-Cloud (MITC) attacks in the cloud environment.

The results of experimental researches of influence of gamma radiation Со⁶⁰ on test MOS/SOI transistors with different constructive-technologic features and electrical modes are submitted.

The study analyzes impacts on biologically active points while carrying out Foll's method of electropunctural diagnostics, resonance and medication testing. It is shown, that microcurrent and external static electric charge impact on biologically active points leads to the emergence of neurons' action potential and the emergence of displacement current inside neurons' cell membrane.

The influence of composite coating composition based on powdered charcoal with different binders on the characteristics of electromagnetic radiation shielding in the frequency range 0,7…17 GHz are researched. It is shown that the deposition of a composite coating on the developed surface structure with pyramidal irregularities increases the efficiency of electromagnetic radiation shielding an average of 10…12 dB throughout the investigated frequency range.

Research results of electromagnetic radiation transmission and reflection characteristics in the frequency range 0.7…17 GHz of needle-punched webs modified by impregnation with solutions containing alcohol and calcium salts are presented. The possibility of such fabrics using for the manufacture of electromagnetic radiation shields constructions with the value of the reflection coefficient -8…-10 dB and transmission coefficient to -18 dB in this frequency range is experimentally demonstrated.

The development of modern technique sample associated with a significant consumption of material and financial resources. In this regard methodological apparatus for forecasting potential characteristics of developed sample and assess its prospects is necessary. The results can be used by making decisions on the design, manufacture and operation of complex radio technical systems.

The results of the study sample, depending characteristics of dielectric losses of motor oils with different degrees of aging are given. The technology of controlling the parameters of oil power plants described by means of monitoring systems installed on mobile objects is proposed.

An algorithm and software model of the desired angular velocity of the drive wheels of machine with electric drives as well as the simulation model of wheel machine that implements the specified speed and the translational motion properties are proposed.

Analysis elements of users work in information corporative systems (ICS) are done. The mathematical model of social authentification in ICS allows on given quality of unsatisfactory marks to calculate the probability of successful authentification with the use of time primoderatin calculating. It allows to restore the user password during losing and by villain exchanging. The modifying algorithm on this model base is reproduced which allows to execute user authentification on charger with attraction. The approach for save user activity in clouding computer area is done.