Spatial modeling of multicomponent pollution removal for liquid treatment under identification of mass transfer coefficient

A generalized spatial mathematical model of the multicomponent pollutant removal for a liquid treatment is proposed. Under the assumption of domination of convective processes over diffusive ones, the model considers an inverse influence of the determining factor (pollution concentration in water and sludge) on the media characteristics (porosity, diffusion) and takes into account the specified additional condition (overridden condition) for estimation of the unknown mass transfer coefficient of a small value.

Estimation method for a set of solutions to interval system of linear algebraic equations with optimized “saturated block” selection procedure

The paper substantiates the necessity of applying a new method for the formation of a set of basic equations in the problem of localizing solutions to an interval system of linear algebraic equations (ISLAE) on the basis of a “saturated block”. The method is based on  solving the problem of optimization. Th e minimization of the maximal prediction error by using interval models the parameters of which belong to the localization area of ISLAE solutions is  chosen as a criterion.

On a numerical quasiconformal mapping method for the medium parameters identification using applied quasipotential tomography

The problem of parameters identification of the bursts of the medium conductivity coefficient according to the tomography of the applied quasipotentials is considered. The method of image reconstruction is suggested, according to which the problem of analysis is reduced to the application of numerical methods of quasiconformal mappings, and the problem of synthesis is reduced to the solving the problem of parametric identification. The results of numerical experiments are presented and their analysis is carried out.

Methods of parametric sensitivity reduction of a field-oriented controlled drive

The well-known problem of parametric sensitivity of a field oriented controlled induction motor drive is considered. The analytical method is offered for parametric sensitivity investigation. Using the results obtained with this method and results obtained by the mathematical models, conclusions are drawn and recommendations for the parametric sensitivity reduction are made. The effective method for the identification of IM parameters at a standstill is proposed.

The mathematical model of glucose dynamics in blood over 24-hour period

The article is concerned with the problem of controlling the glucose concentration in blood with minimal application of invasive measuring. The mathematical model of digestion of recepted glucose, which depends on the volume of consumed carbo­hydrates (instantaneous, fast, slow) has been developed. The mathematical model is built for long-term observa­tions with the use of specially organized expe­riments. The blood glucose level depends on the intensity of the effect of insulin, that is why the model of insulin dynamics has been developed either.

Identification of mass-transfer coefficient in spatial problem of filtration

A modeling problem of the process of liquid multi component decontamination by a spatial filter is considered, it takes into account the reverse influence of decisive factors (contamination concentrations of liquid and sediment) on characteristics (coefficient of porosity, diffusion) of the medium and gives us the possibility to determine small mass transfer coefficient under the conditions of prevailing of convective constituents over diffusive ones.

Функційні можливості системи розпізнавання та ідентифікації користувачів комп’ютера на основі дискретних моделей

In the article the description the system of computer users recognition is offered by means discrete model, that relations the sentinel delays at entered information from a keyboard in the to discrete moment of time. It allowed to increase efficiency of recognition almost in 1,5 time and automates procedure of authentication of users. The main directions of development and application of the systems of recognition and identification created on the basis of discrete models are marked.

Інформаційна технологія ідентифікації проблемних ситуацій та їх станів у складних технічних системах

The article contains information technology for identification of problematic situations and their states in complex technical systems, which is based on a method that is based on the information model identification process and modified clustering algorithms such situations FOREL and K-MEANS.

Judicial examination of consumer goods in investigating criminal cases

Analyzed the place and role of judicial and merchandising expertise in the investigation of criminal cases involving counterfeiting of consumer goods. Quantitative and qualitative assessment of the main characteristics of consumer goods used for comparison to the reference indicators for the purpose of solving the basic problems of forensic merchandising expertise.