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The article presents a new way to increase the cryptographic strength of MAC codes for messages transmitted over the Internet. Today, this should make it possible to resist both the consequences of cyber threat aggregation and increase the speed of unauthorized access to data through the creation of such new hardware capabilities as quantum computer technology. The paper proposes to consider the application of the modified UMAC algorithm on modified McEliece elliptic curves using crypto-code structures with hybridity features. The proposed structures were tested for collision properties. For this, a software application was developed in the environment of the object-oriented programming language C#. To determine the capabilities of the studied hash-codes, a complex indicator of the effectiveness of the modified UMAC algorithm was developed. This made it possible to test the proposed designs for resistance to hacking, consider the value of the data that is being protected, and the safe time for a possible hack. As a way to assess this indicator, it was proposed to use the method of multivariate complex analysis. For this, scales for measuring and interpreting each indicator were developed. It has been proven that this method of evaluation allows one to obtain adequate results and combine them with the results of accurate calculations for individual parameters. The issue of reducing energy costs for the formation of crypto-code structures was also investigated. The results showed that the creation of hybrid crypto-code structures leads to the lowest energy costs. [ABSTRACT FROM AUTHOR]

The actual standard for industrial technological processes and many other branches of automation is the PID-type controller. The problem of synthesis of such controllers has been studied in the literature in sufficient detail. The advantage of such controllers, which influenced on its wide popularity, is that it is a controller in which the automation system tuner can empirically change the numerical coefficients (from 1 to 4 depending on the controller type), based on the direct criteria of transient quality: the maximum deviation, overshoot, setting time, as well as on signs of instability. The problem of optimal synthesis of the PID-type controller based on typical models can be generally considered as solved. With the development of computer techniques and engineering mathematical software, the problem of synthesis of the optimal PID-type controller for any control object is solved by combining frequency criteria and optimization algorithms. Other approaches are also used, which are mainly designed for multivariable control objects. This paper solves the problem of synthesis of a discrete SISO (Single Input and Single Output) controller for a stable linear model of arbitrary order with dead time using engineering mathematical software. The main idea of the method is a modification of the classical Dahlin controller. The proposed controller has the following advantages: simple software implementation, no necessity to solve the optimization problem, high robustness, possibility to take into account all dynamics, and simple tuning procedure. A study of the controller's operation for typical forms of models was carried out and attention was paid to the problem of neutralization of stepwise disturbances when controlling integrating plants. [ABSTRACT FROM AUTHOR]

Copyright of Science-Based Technologies is the property of National Aviation University and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Scientific Proceedings of Ostroh Academy National University Series, Economics is the property of National University of Ostroh Academy and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Purpose. Development of improved methods of rational internal shape design of shoes on the basis of the formation of a database of 3D feet models using efficient software and advanced equipment. Methods. Methods of anthropometric studies offeet without contact using computer technology and special tools; mathematical methods ofprocessing the results of the experiment; graph-analytical methods of research and building of parameters of plantohram were used. Results. A database of 3D feet models and plantohram of the investigated groups of people were created. The algorithm of last designing in the medium Crispin LastMaker based on the created databases was shown. The contours of experimental lasts of two width (medium and wide) were calculated and designed on the basis of anthropometric research. Two models of shoe lasts (medium and wide width) for comfortable shoes were developed. Scientific novelty. The paper presents a rational way to design a shoe lasts in the medium of specialized software module Crispin LastMaker based on a mathematical model NATF obtained by the data processing of contactless research offeet of a homogeneous sample. Practical significance. The way to design an efficient internal form of shoes presented in the paper can be applied for industrial development of mass production of lasts of different styles for different groups ofpeople. [ABSTRACT FROM AUTHOR]

Context. In many areas of science and technology, the numerical solution of problems is not enough for the further development of the implementation of the obtained results. Among the existing information visualization approaches, the one that allows you to effectively reveal unstructured actionable ideas, generalize or simplify the analysis of the received data is chosen. The results of visualization of generalized structural diagrams based on the textual description of the algorithm clearly reflect the interaction of its parts, which is important at the system engineering stage of computer design. Objective of the study is the analysis and software implementation of structure visualization using the example of discrete harmonic transformation calculators obtained as a result of the synthesis of an algorithm based on cyclic convolutions with the possibility of extending the structure visualization to other computational algorithms. Method. The generalized scheme of the synthesis of algorithms of fast harmonic transformations in the form of a set of cyclic convolution operations on the combined sequences of input data and the coefficients of the harmonic transformation function with their visualization in the form of a generalized structural diagram of the calculator. The results. The result of the work is a software implementation of the visualization of generalized structural diagrams for the synthesized algorithms of cosine and Hartley transformations, which visually reflect the interaction of the main blocks of the computer. The software implementation of computer structure visualization is made in TypeScript using the Phaser 3 framework. Conclusions. The work considers and analyzes the developed software implementation of visualization of the general structure of the calculator for fast algorithms of discrete harmonic transformations in the domain of real numbers, obtained as a result of the synthesis of the algorithm based on cyclic convolutions. The results of visualization of variants of structural schemes of computers clearly and clearly reflect the interaction of its parts and allow to evaluate one or another variant of the computing algorithm in the design process [ABSTRACT FROM AUTHOR]

Object. The article examines the role of modern technologies, which help design ideas to be implemented more effectively. The research aims to analyze and evaluate the use of artificial intelligence, virtual reality, 3D modeling, plug-ins and other advanced technologies in design, as well as to determine their impact on creativity, efficiency and sustainability of desi gn solutions. Methods & methodology. During the scientific research, the methods of literary and scientific review, comparison and synthesis, analysis of existing computer programs and technologies were used. The scientific novelty of this article is revealed in an in-depth analysis of the impact of modern technologies on the processes of creation and development of design ideas through the use of artificial intelligence, virtual reality, 3D modeling, plugins and other advanced technologies, as well as in the determination of their impact on creativity, efficiency and susta inability of design solutions. Results. It has been determined that modern technologies, including artificial intelligence, virtual reality, 3D modeling, plug-ins and other innovative tools, have a significant impact on graphic design and open up endless possibilities for it. Artificial intelligence helps to automate and optimize the processes of working with graphics, creating personalized content and analyzing graphic trends. Virtual reality can significantly expand the possibilities of visualization and interaction with graphic objects. 3D modeling and 3D printing allow you to create realistic prototypes and products. Plugins have been proven to expand the functionality of graphics programs and simplify routine tasks. However, the use of these technologies also requires designers to improve their professional skills. It is emphasized that it is important to maintain a balance between the use of technologies and the creativity of the designer himself. Conclusions. The analysis of scientific articles and the contribution of scientists and practitioners in relation to the defined research problem was carried out. Programs and methods of creating a comfortable work process for the fastest and highest quality result are highlighted. Artificial intelligence, plug-ins, and neural networks are considered as auxiliary means. The work presents examples of such plugins for various programs and substantiates the principles of their use for the purpose of creating a design project and advertising one's own author's ideas. An attempt was made to analyze the prospects of using artificial intelligence in comparison with human capabilities within the framework of creating and improving the implementation of design projects, taking into account all the nuances and privileges. [ABSTRACT FROM AUTHOR]