One of the most informative human speech-creating organ for speech recognition problem is voice source that effects basic tone frequency of speech signal. According to researches, human hearing system uses basic tone frequency for speech recognition with high reliability, but it is sensitive to low-frequency noises – so appeared idea to use spectral characteristics of speech signal segments, where extremums of correlation function can be found, as additional features.

Estimations for the dynamical properties of tree-nitrides compounds (InN, GaN, AlN) were obtained, using semi-analytical expressions for momentum and energy mean free times in strong fields. Field-temperature dependences, occupation of the valleys, velocity-field charactistics in strong fields with different modifications of crystal lattice (cubic and hexagonal) were calculated. These results were compared with existent experimental data, calculated by other authors.

Design of thin-walled metal tubes are becoming more common in the construction of modern light aircraft, both manned and unmanned due to its exceptional workability, durability and long service life.

Fractional and chemical composition, microscopic structure of various representatives of non- wood plant Ukrainian material was investigated. The necessity of using new crops for obtaining fibrous semi-finished products for needs of pulp and paper industry was well-founded. The influence of main technological factors (temperature, duration, consumption of basic chemicals) of obtaining fibrous semi-finished products to their physical and mechanical performance was investigated.

Created and introduced a theory, applied in practice of impulse and wave destruction and also system of adaptive management of process of impuls and wave destruction of rocks. On the basis of the applied theory are developed new executive powers of impulse and wave action and technology with use of the given theory.

Reliability improvement of multiprocessor systems (MS) designed for controlling sophisticated objects, in particular those of critical purpose, is achieved in a variety of ways, which are discussed in this work, by introducing different types of redundancy, in particular temporal and hardware redundancies, and most often – by the fault-tolerant design of the system. The minimum number of additional processors required to increase the reliability (probability of operation without failure) of the system to the desired level is estimated.

Neural network systems belong to the class of intelligent systems and are one of possible variants of adaptive and self-adjusting control systems for complex dynamic objects that can operate under structural, parametric and information uncertainty. These systems are able to control objects of any complexity but have problems with learning and adapting them in real time.

The purpose of the work is to assess the effectiveness of encryption for certain types of cryptosystems, obtaining estimates of their relative resistance against attacks depending on the environment in which they operate, and to use new methods to improve cryptographic protection of information according to different models of computation and prospects of modern trends of cryptanalysis and сomputer abilities.

The analysis of the status and problems arising in the provision of services in global networks, particularly in systems Cloud Computing and Grid, as well as models, methods and algorithms to provide services and their pricing shown that the existing number of bottlenecks in the system to provide services in a global environment for ISPs and telecom operators, including call processing systems, query processing in data сetre and charging, since the lack of facilities the end user can not pick up service.

Multistage anaerobic-aerobic wastewater treatment technology was created and implemented at the treatment plants of Slavuta malting plant in Slavuta. This technology provides using of bioreactors, equipped with polymer fiber carriers with immobilized hydrobionts on them.