The research was a part of the project aimed at developing an automated optimal insulin dose forecasting system, which, when combined with an insulin pump and continuous glucose monitoring system, could serve as an artificial pancreas. Paper investigates the effectiveness of neural network algorithms for predicting the blood glucose values in type I diabetes patients. The aim is to choose the optimal neural network and its training algorithm for use in predicting optimal doses of insulin. This research was performed using a software system MatLab.

The problems of a datawarehouse business continuity based on the methods of control and database recovery are discussed. The analysis of a limited stochastic control of databases in comparison with a known deterministic approach is done.

In the article technical and legal aspects of a problem of working out the international documents, establishing safety requirements to wheeled vehicles, are analyzed. Practice and approaches to establishment of scope of the United Nations Regulations, attached to the 1958 Geneva agreement, are in detail considered. Methodical positions of working out UN Regulations, as an element of risk management in the motor transportation systems, included into the international documents, are presented. 

The article is devoted development of the mathematical tool for processing of the adapted data model. The generalized structure of the multidimensional space which describes the relational model is offered for the adapted data model. The offered structure of multidimensional space is considered as a multidimensional matrix. The multidimensional matrix set based on the multidimensional matrix of the whole multidimensional space defines various parts of this space. Different operations for the multidimensional matrix set are entered and the multidimensional matrix algebra is defined.

The wave model a current of liquid in a hydraulic actuator is considered. It is shown that own frequency of a drosselling hydraulic actuator can decrease in 1,41 times at the identical weight led to a target link. As a result of numerical experiments influence of nonlinearity of a dynamic characteristic on self-oscillatory processes arising in a hydraulic actuator is defined. Results of numerical experiments have been compared with results of tests of the hydro-mechanical monitor drive applied in laboratory installation of chair E-10 "The hydromechanics, the hydrocars and Hydro-pneumatic Systems" MSTU named after N. E. Bauman. Values of frequencies of self-oscillations received at tests of the laboratory sample of a hydromechanical actuator and registered at numerical experiments are almost equal and differ from calculated on linear mathematical model in 1,41 times. Thus, it is possible to conclude that the decrease in own frequency of self-oscillations of a hydromechanical drive found out at mathematical modeling represents the facts.

A review of different aproaches for decoding Reed-Solomon codes in terms of hardware cost and performance is given. We have developed a modified version of the key equation solver for Reed-Solomon decoder based on the Berlekamp-Massey algorithm. A distinctive feature of the proposed implementation is the combination of size and speed, which places it between existing implementations based on Berlekamp-Massey and Euclid algorithms.

Questions of effective quality management system for production with required properties are considered. Methodology of finding key setting of technology process and building quality area which can guarantee getting production with required features is shown by example of multilayers thin films depositions on large area substrates.

This article is a continuation of works devoted to the modeling of mechanical linkages machinery and mechanical appliances. To describe the positional relationships of mechanical products author is offering to use the language of hypergraphs. It is shown that this medium is an adequate model-based environment and can provide product assembly process as a sequence of normal contractibility of the hyperedges. The necessary conditions for the contractibility of the general form of hypergraphs. We prove sufficient conditions for a number of important cases. The technique of enumeration contracted hypergraph. We obtain recurrence relations that allow to find the number of such objects with n vertices.

It is shown that cutting is an explosion modification, and the data confirming this statement are given. New concepts of deforming and destruction at cutting are presented; a combined physical-technological model of the process of chip formation and formation of surface layer quality is elaborated. A new version of classical "σ_i–ε_i" diagram, namely, diagram of large deformations for dynamic destruction is proposed. A common mechanism of formation at metal cutting of chip of any type is theoretically substantiated. It is shown that physics of high dynamic pressures can serve as a research basis for machining by cutting. Figs. 2. Tabs. 3.

The method of hysteretic damping systems modeling using fractional calculus is analysed in this article. Mathematical model of mechanical viscoelastic behavior of composite leaf spring with polymer interleaves is described. The properties of the model is analysed in the article, the calculation of ride comfort parameters of the vehicle with such leaf springs is made.

The paper presents the review of the basic mathematical models used in modern learning systems. We discuss the models of knowledge, the learner, the learning process, the control of educational achievements, and also some other models. As models of knowledge we present the frame-model, formal-logic models and models based on semantic networks. Such classes of the pupil models, as overlay models, imitating models, difference models, perturbation and stereotypical models are considered. From all variety of the training process models the review includes the models based on the Petry networks, probability models and the models based on the finite-state automations. As models of the control of educational achievements of the learner the paper presents the models based on the classical test theory (CTT) and models based on the item response theory (IRT).

In this paper, we present the two realizations networks partitioning: in set operations and with using hypergraph operations. The second variant partitioning description is more compact and clear. The asymptotic computation complexity of both realizations is equal. The formal description of multilevel hypergraph partitioning is received. This description make possible easily to estimate the transformations that demand very large quantity actions.

The theoretical prerequisites of an increase in strength of the electric-contact welding of wire due to its slippage on the base layer are examined. The method of welding with the braking of contact roller and the results of its use with the forming of multilayer coatings is examined.