The paper observes different modern space heating technologies suitable for industrial buildings. Their main working principles and applications are researched related to their energy efficiency. The ...problems about heating of large scale spaces in industry are observed. A compartment analysis between the technologies is carried out with their advantages and disadvantages.
Digital learning resources are a major part of distance learning in education. In the engineering sciences, where the training is applied and it is often necessary to conduct practical exercises, it ...is necessary to create both standard digital training resources and specific ones. Specific digital educational resources aim to provide a reproduction of real experiments, through digital and virtual tools. The article discusses ICT for the development of standard and specific digital resources. Software tools and applications for creating various digital resources with application in robotics are presented: Gazebo, Robot Operating System, Arduino. The process and the technologies used to create a digital resource (simulation model) through a Gazebo simulator for working with robots and sensors are described. The created digital resource could be used in various engineering fields such as robotics, embedded systems, software engineering, sensor systems, electronics and others. The resource can be distributed and shared over the Internet (Github), as well as upgraded (modified) by teachers and students.
The external appearance of self-organization is very low friction and wear, and in some cases there is lack of wear, so a friction effect without wear is observed. In the present study are examined ...tribosystems of different materials - steel, spheroidal graphite cast iron micro alloyed with 0.051% of tin, bronze and other materials under conditions of border lubrication with grease "Litol 24" with a metal-plated additive "Valena". A unique multifunctional tribotester has been developed that allows varying load and slide speed across wide ranges and research different types of contact - point, ring, plane. Studies have been carried out on different friction modes and results have been obtained for friction coefficient and the parameters of wear of the specimens and the counter body depend of the friction times. Conditions have been established to produce a No-wear effect due to the formation of a metal-plated copper film on the surfaces of the body and the counter body.
The article presents a 3D model of a robot designed for hand rehabilitation. The described robot is specially designed to move the wrist. The mechanical construction of the robot, the hardware ...system, the control algorithm and the web interface for remote control via Wi-Fi are presented. The robot is powered by a servo motor, the control is performed by esp32 microcontroller. The control includes a sensor for measuring the position of the robot's joint and a sensor for measuring the pressure that the robot applies to the human wrist.
The modern development of technology in the field of manufacturing has made significant progress. Thanks to research in the field of Industry 4.0, we now have intelligent manufacturing systems based ...on the Internet of Things and part of Cyber-physical systems (CPS). In this research, a stand-alone control system of a SCARA robot and a rotary table is presented, as part of a production process in the industry. The technical characteristics of the robot used and of the rotary table are described. An algorithm has been developed to control the rotary table and to synchronize the work of the table and the robot. Simulation models of the robot and table are developed, methods for the control of the whole system under the robot operating system (ROS) are presented. The presented system could be used in the field of digitalization, digital twins and intelligent systems. The application of the system in the field of agriculture is considered.
The paper presents methods and tools for tactile access of people with visual impairments to a graphical computer interface, cultural and historical heritage and temperature in the home. Different ...size of graphical Braille screens on the base of linear electromagnetic micro drives, tactile graphical tiles and thermometer for visual impaired are described. The presented devices give access of visual impaired people to graphical computer interface (Windows), objects of cultural and historical heritage, as well as give possibilities for better education and perception of knowledge.
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