Zoomorphic Mobile Robot Development for Vertical Movement Based on the Geometrical Family Caterpillar

Research in robotics is one of the promising areas in mobile robot development, which is planned to be implemented in extreme dangerous conditions of areas explored by humans. This article aims at developing and improving a prototype of zoomorphic mobile robots that are designed to repeat the existing biological objects in nature. The authors performed a detailed analysis on the structure and dynamics of the geometrical family caterpillar movement, which is passed on a practical design implemented to perform the dynamic movement on uneven vertical surfaces. Based on the obtained analysis, the design and kinematic scheme of the movement is developed. Also, the structural control scheme via the Internet technologies that allow carrying out remote control is presented in this paper, considering the dangerous mobile robot work zones. To test the recommended solutions, the authors developed detailed 3D printed models of the mobile robot constructions for the implemented hardware. The model of the mobile robot is constructed, and the control system with examples of the user program code implementations is performed. Several experiments were performed, which showed the efficiency of the achieved mobile robot for solving problems of vertical movement on uneven metal surfaces. Moreover, the obtained slow motion of the designed robot proves that the simulated robot behaves similarly to the natural behavior of caterpillar movement.

CAR AUTOSTART REMOTE CONTROL SYSTEM ON THE ARDUINO PLATFORM

This article describes a remote car auto-start system based on the Arduino platform using a ULN2003A (DIP) chip, several SRD-12VDC-SL-C relays, DC-DC converters 2-5A, diodes, resistors and capacitors. The principles of the system are explained in detail, the assembly diagram is given, as well as the basic fragments of the program code. Also the ways of possible modification of the project are given.

Design of Microcontroller Programming Learning KIT Using Scratch for Arduino

Based on the results of the researcher's observations, the competence of students' skills in the subjects of Microprocessors and Microcontrollers is still lacking. This is due to the fact that the current learning method is still using the conventional method, and still using conventional program code writing model. It is difficult to understand for students who are beginners in the field of programming. The purpose of this research is to produce Learning KIT products to facilitate learning activities of Microcontroller programming with Plug and Play system, in writing program code was made easy with simply compiling instructions in the form of block puzzles. It can make easy for the beginner to understand programming logic and algorithms. The method steps taken refer to prototyping method, it aims to get an overview of the tool’s designed and built to be shown to the user. The evaluation prototype will be used as a reference to make a tool as the final product as the output of this research.

IDENTIFICATION OF THE DISTRIBUTION FUNCTION AND CHARACTERIZATION OF THE NANO– AND MICROPOWDERS SIZES

В работе предлагаются два новых эффективных алгоритма, реализованных коротким программным кодом в MS Excel, предназначенных для идентификации и характеризации размеров нано– и микропорошков частиц в виде обобщенного гамма или логнормального распределений по данным опытных гистограмм. Предлагаемый метод представляет собой новый и достаточно общий подход к решению обратных задач идентификации параметров дифференциальных функций распределения по экспериментальным данным на основе на минимизации функционала, представляющего собой коэффициент детерминации.Алгоритм реализован формулами (менее 10) наиболее распространенного инструментария (электронных таблиц MS Excel без использования макросов), позволяющего исследователям, не обладающими навыками профессиональных программистов, простоту проверки и воспроизведения представленного материала, а также возможность модификации кода для решения более широкого круга задач. Текст статьи и комментарии на рабочих листах скриншотов представляют собой готовые инструкции по решению задач идентификация функций распределения и характеризации размеров нано– и микропорошков. The paper proposes two new efficient algorithms, implemented by a short program code in MS Excel, designed to identify and characterize the sizes of nano- and micropowders of particles in the form of generalized gamma or lognormal distributions according to experimental histograms. The proposed method is a new general approach to solving inverse problems of identifying the parameters of differential distribution functions from experimental data based on minimizing the functional that is the coefficient of determination.The algorithm is implemented with formulas (less than 10) of the most common tools (MS Excel spreadsheets without the use of macros), which allow researchers without the skills of professional programmers to easily check and reproduce the presented material, as well as the ability to modify the code to solve a wider range of problems. The text of the article and comments on the worksheets of screenshots represent ready-made instructions for solving problems of identification of distribution functions and characterization of the sizes of nano- and micropowders.

Some Aspects of Automated Implementation of Dependencies in PHP Language

The purpose of the article is to research, analyze and consider the general problems and prospects of using the principle of implementing dependencies in the development of web applications in the PHP language. Research methods are methods of semantic analysis of the basic concepts of this subject area (web technologies and web applications). The article considers the existing approaches to control inversion based on the use of the dependency implementation template. The novelty of the research is to solve the control inversion problems based on a template when designing web applications. The conclusion of the research conducted in the article is that the existing problems and prospects for the application of the principle of dependency implementation in web applications with program code written in PHP have been analyzed. Taking into account the results of the analysis, the authors have developed a system for automating the implementation of dependencies, which is important for solving problems of improving the efficiency of web application development processes in PHP.

Techniques and Approaches to Generate Automatic Program Code

Raising the level of digital education is one of the main challenges facing the education system now and in the future. The use of modern technical means in the learning process is an important prerequisite for achieving this ambitious goal. However, this must go hand in hand with the introduction of new scientific methods and teaching approaches. This article presents different approaches which the author has applied in her practice with high school students. It proves the benefit of their implementation in the educational process.

Impacts of Color Coding on Programming Learning in Multimedia Learning: Moving Toward a Multimodal Methodology

In the present study, we tested the effectiveness of color coding on the programming learning of students who were learning from video lectures. Effectiveness was measured using multimodal physiological measures, combining eye tracking and electroencephalography (EEG). Using a between-subjects design, 42 university students were randomly assigned to two video lecture conditions (color-coded vs. grayscale). The participants’ eye tracking and EEG signals were recorded while watching the assigned video, and their learning performance was subsequently assessed. The results showed that the color-coded design was more beneficial than the grayscale design, as indicated by smaller pupil diameter, shorter fixation duration, higher EEG theta and alpha band power, lower EEG cognitive load, and better learning performance. The present findings have practical implications for designing slide-based programming learning video lectures; slides should highlight the format of the program code using color coding.

Modern Hash Collision CyberAttacks and Methods of Their Detection and Neutralization

This article discusses the issues related to the possibility of realization of collision cyberattacks (based on hash collisions). Since post–quantum cryptography has become relevant, classical cryptosystems do not provide the sufficient resistance to the modern quantum cyberattacks. Systems based on outdated hashing algorithms become vulnerable to cyberattacks with hash collision. As replacement for unreliable algorithms, such as various modifications of MD5 and SHA–1, new algorithms have been created, for example, SHA–3 standard based on the Keccak function and AES–based hashing. This article discusses modern collision cyberattacks and possible methods of their detection. Because of this study, theoretical description of cyberattacks with hash collision was considered; modern cyberattacks on hash collisions and possible ways of detecting and countering them (weak hash detection) are described; software tool that detects vulnerable and unreliable hash is implemented; software testing is carried out. Based on the conducted research, it can be concluded that the main advantages of implementing software tool are effective detection of vulnerable hash, the ability to generate new hash protected from collisions, convenient and user– friendly interface, small memory requirements and small size of the program code.

Visualization of Control Processes a nd Code Validation

The article contains an overview of articles related to the description of control process visualization. It provides short information on how to visualize the production line based on two programming environments: Factory IO and Inventor together with Matlab/Simulink. The analysis of these two environments concerns control of a virtual 3D object from a real PLC. Both virtual production line projects are based on control from the S7-1214 DC/DC/DC controller. Currently, there is a need to validate the program code or control process which has been done using several commercially available programs.