Alexander A. Kostikov

Donbass State Engineering Academy | DSEA · Informatics and Engineering Graphics Departement

In this paper the algorithm for adaptive testing of students’ knowledge in distance learning and an assessment of its effectiveness in the educational process has been proposed. The results of the study are based on the achievements of modern testing theory IRT. The aim of the study was to build an adaptive testing algorithm that allows you to obje...

In this paper, an algorithm for adaptive testing of students' knowledge in distance learning is proposed, along with an assessment of its effectiveness in the educational process. The paper provides an overview of the results of modern test theory application, a description and block diagram of the proposed algorithm, and the results of its applica...

The present article is focused on the application of Sleptsov net (SN) for solving system of linear algebraic equations with a tridiagonal matrix. SN, which implements the double sweep algorithm for solving a system of linear equations with a tridiagonal matrix, is constructed. The work of the constructed network is considered when solving a specif...

Background: Existing issues with student mental health are the sources of ongoing violation of academic and educational integrity in learning and instructional dynamics in all educational institutions worldwide. Objective: This didactical paper addresses the practical case of educational integrity violations induced by student mental illness. It...

The article looks into the problem of theoretical aspects of using Web 2.0 technology in higher education. This paper describes answers of 87 respondents who have helped to identify the most required types of educational content for the integration to pages of the online course training higher school mathematics teachers. The authors carry out a th...

The article looks into the problem of theoretical aspects of using Web 2.0 technology in higher education. This paper describes answers of 87 respondents who have helped to identify the most required types of educational content for the integration to pages of the online course training higher school mathematics teachers. The authors carry out a th...

The present educational paper is focused on the creative rethinking and improvement of undergraduate curriculum in multidisciplinary materials science and engineering through the authors-proposed formulation of a new pedagogical hypothesis concerning the functioning modes of a two-tiered mathematical model of student memory. The didactic novelty of...

This paper is focused on an investigation into the control dynamics of a boom crane through a study of guided payload pendulum motion with a non-uniformly rotating boom-driven pivot center and variable cable length. A time-optimal control problem was formulated and numerically solved with constraints on the allowable payload swaying value using JMo...

The present educational research is focused on the solution of didactic problem of an engineering-friendly description and explanation of the dynamics and control of Foucault pendulum-like systems, which have arisen from practical problems of boom crane dynamics in lifting-and-handling machinery and transport. An educational actuality of the presen...

Multiple-cylinder scattering of electromagnetic plane waves are considered. It is shown that the process can led to formation of two kinds of high intensity areas of electromagnetic waves. The first type arise inside cylinder due to so-called whispering gallery modes (WGM), while the second type represents itself a narrow, high-intensity beam of li...

We report the effect of scattering of electromagnetic plane waves by two cylinders on whispering gallery mode (WGM) formation in a cylinder. WGM can occur because of the presence of additional cylinder scatterers at specific location, while WGMs can only form in a single cylinder for specific cylinder radius and/or wavelength values, the matching a...

A new mathematical model of a 3DOF 2D mechanical system “transported cross-beam, two moving bridge cranes” has been proposed. Small system oscillations have been derived through the introduction of Lagrange equations. The numerical estimation of 3DOF system motion has been carried out with equation-based Modelica language. The present article uses...

We report the effect of scattering of electromagnetic plane waves by two cylinders on whispering gallery mode (WGM) formation in a cylinder. WGM can occur because of the presence of additional cylinder scatterers at specific location, while WGMs can only form in a single cylinder for specific cylinder radius and/or wavelength values, the matching a...

The present article is focused on the improvement of the quality of engineering education of graduate students with a major in transport and mechanical engineering through the derivation of a numerical solution of the optimal control problem for payload swaying during crane boom slewing, formulated by Sakawa et al. For the first time, a numerical s...

The present article is focused on the study of the swaying motion of a payload during non-uniform guided slewing of a crane boom with an emphasis on the Coriolis effects. A new mathematical model of the motion of the mechanical system “guided crane boom–payload” has been derived with an introduction of Blajer’s projection method. The governing dyna...